/* ============================================
   Termnix-IT Portfolio — Vercel Inspired
   ============================================ */

/* --- CSS Custom Properties --- */
:root {
  --primary: #4338ca;
  --primary-light: #3730a3;
  --primary-dark: #312e81;
  --accent: #0891b2;
  --accent-dark: #0e7490;
  --bg-base: #ffffff;
  --bg-dark: #ffffff;
  --bg-darker: #f3f4f6;
  --bg-card: #ffffff;
  --bg-card-hover: #fbfbfc;
  --bg-glass: rgba(255, 255, 255, 0.92);
  --text-primary: #171717;
  --text-secondary: #4d4d4d;
  --text-muted: #666666;
  --border-color: #ebebeb;
  --border-hover: #d6d6db;
  --gradient-primary: linear-gradient(135deg, #171717, #171717);
  --gradient-bg: #ffffff;
  --shadow-sm: 0 0 0 1px rgba(0, 0, 0, 0.08);
  --shadow-md: 0 0 0 1px rgba(0, 0, 0, 0.08), 0 2px 2px rgba(0, 0, 0, 0.04);
  --shadow-lg: 0 0 0 1px rgba(0, 0, 0, 0.08), 0 2px 2px rgba(0, 0, 0, 0.04), 0 8px 8px rgba(0, 0, 0, 0.04);
  --shadow-glow: 0 0 0 1px rgba(0, 0, 0, 0.12), 0 6px 24px rgba(0, 0, 0, 0.06);
  --radius-sm: 0.5rem;
  --radius-md: 1rem;
  --radius-lg: 1.5rem;
  --transition: color 0.25s cubic-bezier(0.4, 0, 0.2, 1),
               background-color 0.25s cubic-bezier(0.4, 0, 0.2, 1),
               border-color 0.25s cubic-bezier(0.4, 0, 0.2, 1),
               box-shadow 0.25s cubic-bezier(0.4, 0, 0.2, 1),
               transform 0.25s cubic-bezier(0.4, 0, 0.2, 1),
               opacity 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  --font-display: 'Zen Kaku Gothic New', sans-serif;
  --font-mono: 'Space Mono', 'JetBrains Mono', monospace;
  --font-main: 'Zen Kaku Gothic New', sans-serif;
}

/* --- Reset & Base --- */
*, *::before, *::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
}

body {
  font-family: var(--font-main);
  background: var(--gradient-bg);
  color: var(--text-primary);
  min-height: 100vh;
  margin: 0;
  padding: 0;
  line-height: 1.8;
  font-weight: 400;
  overflow-x: hidden;
  text-rendering: optimizeLegibility;
}

body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.88), rgba(255, 255, 255, 0));
  pointer-events: none;
  z-index: 0;
}

/* 見出し系にディスプレイフォント適用 */
h1, h2, h3 {
  font-family: var(--font-display);
}

/* --- フォーカス（キーボード操作）--- */
:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

/* マウス操作時はアウトラインを非表示 */
:focus:not(:focus-visible) {
  outline: none;
}

/* --- ナビゲーションバー --- */
.navbar {
  background: rgba(255, 255, 255, 0.78);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  padding: 0.85rem 0;
  transition: var(--transition);
  z-index: 1000;
  border-bottom: 1px solid transparent;
}

.navbar.scrolled {
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  padding: 0.6rem 0;
  border-bottom: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
}

.navbar-brand {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.2rem;
  letter-spacing: -0.04em;
  color: var(--text-primary) !important;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  transition: var(--transition);
}

.navbar-brand:hover {
  color: var(--primary-light) !important;
}

.brand-icon {
  display: block;
  width: 36px;
  height: 36px;
  object-fit: cover;
  border-radius: 50%;
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
  background: #fff;
}

.navbar-nav .nav-link {
  color: var(--text-secondary) !important;
  font-weight: 500;
  font-size: 0.83rem;
  letter-spacing: 0.01em;
  padding: 0.45rem 0.9rem !important;
  border-radius: var(--radius-sm);
  transition: var(--transition);
  position: relative;
}

.navbar-nav .nav-link:hover,
.navbar-nav .nav-link.active {
  color: var(--primary) !important;
  background: rgba(0, 114, 245, 0.06);
}

.navbar-toggler {
  border: 1px solid var(--border-color);
  padding: 0.4rem 0.6rem;
}

.navbar-toggler-icon {
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba%2851, 65, 85, 0.85%29' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
}

/* --- メインコンテンツ --- */
main {
  position: relative;
  z-index: 1;
  min-height: calc(100vh - 160px);
  padding: 0;
  margin: 0;
  background: none !important;
  max-width: none;
  border-radius: 0;
  box-shadow: none;
}

/* --- ヒーローセクション --- */
.hero-section {
  padding: 8rem 0 4rem;
  text-align: center;
  position: relative;
}

.hero-home {
  padding: 9rem 0 4.5rem;
  text-align: left;
}

.hero-section::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 600px;
  height: 600px;
  background: transparent;
  border-radius: 50%;
  pointer-events: none;
}

.hero-avatar {
  width: 84px;
  height: 84px;
  border-radius: 50%;
  object-fit: cover;
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}

.hero-avatar:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.hero-name {
  font-size: clamp(1.8rem, 5vw, 2.5rem);
  font-weight: 600;
  margin-top: 1.5rem;
  margin-bottom: 0.5rem;
  color: var(--text-primary);
}

.hero-name-left {
  margin-top: 0;
  font-size: clamp(2.4rem, 6vw, 4.4rem);
  line-height: 1.08;
  letter-spacing: -0.09em;
  max-width: 11ch;
}

.hero-title-compact {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  max-width: 720px;
  letter-spacing: 0;
}

.hero-title-main {
  display: block;
  width: fit-content;
  font-family: var(--font-display);
  font-size: clamp(2.2rem, 6vw, 4.6rem);
  font-weight: 600;
  line-height: 1.02;
  letter-spacing: -0.06em;
  color: var(--text-primary);
}

.hero-headline-motion {
  position: relative;
}

.hero-headline-motion::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -0.3rem;
  width: min(11rem, 58%);
  height: 1px;
  background: linear-gradient(90deg, rgba(23, 23, 23, 0.8), rgba(23, 23, 23, 0.08));
  transform: scaleX(0);
  transform-origin: left center;
  opacity: 0;
}

.hero-headline-motion.animate-in::after {
  opacity: 1;
  animation: heroUnderlineReveal 0.7s cubic-bezier(0.2, 0.9, 0.2, 1) 0.22s forwards;
}

.hero-tagline {
  font-size: clamp(0.95rem, 2.5vw, 1.1rem);
  color: var(--text-secondary);
  font-weight: 400;
  margin-bottom: 2rem;
}

.hero-home-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 0;
  align-items: start;
}

.hero-copy {
  max-width: 880px;
}

.hero-eyebrow {
  margin-bottom: 0.15rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.03em;
  text-transform: uppercase;
}

.hero-identity {
  display: inline-flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.35rem;
}

.hero-identity-icon {
  width: 54px;
  height: 54px;
  border-radius: 50%;
  object-fit: cover;
  border: 1px solid var(--border-color);
}

.hero-float-icon {
  animation: heroIconFloat 6.5s ease-in-out infinite;
  will-change: transform;
}

@media (hover: hover) {
  .hero-float-icon:hover {
    animation-play-state: paused;
    transform: translateY(-1px);
  }
}

.hero-brand {
  margin: 0;
  color: var(--text-primary);
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: -0.02em;
}

.hero-proof-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin-top: 1.75rem;
  max-width: 860px;
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
}

.hero-proof-motion {
  border-top-color: transparent;
  border-bottom-color: transparent;
  position: relative;
}

.hero-proof-motion::before,
.hero-proof-motion::after {
  content: '';
  position: absolute;
  left: 0;
  right: 0;
  height: 1px;
  background: var(--border-color);
  transform: scaleX(0);
  transform-origin: left center;
}

.hero-proof-motion::before {
  top: -1px;
}

.hero-proof-motion::after {
  bottom: -1px;
}

.hero-proof-motion.animate-in::before,
.hero-proof-motion.animate-in::after {
  animation: heroLineReveal 0.6s cubic-bezier(0.2, 0.85, 0.2, 1) forwards;
}

.hero-proof-item {
  opacity: 0;
  transform: translateY(12px);
  display: grid;
  align-content: start;
  gap: 0.25rem;
  min-height: 100%;
  padding: 1.15rem 1.2rem 1.05rem 0;
}

.hero-proof-list.animate-in .hero-proof-item {
  animation: heroProofTextIn 0.55s cubic-bezier(0.2, 0.8, 0.2, 1) forwards;
}

.hero-proof-list .hero-proof-item:nth-child(1) {
  animation-delay: 0.18s;
}

.hero-proof-list .hero-proof-item:nth-child(2) {
  animation-delay: 0.32s;
}

.hero-proof-list .hero-proof-item:nth-child(3) {
  animation-delay: 0.46s;
}

.hero-proof-motion .hero-proof-item + .hero-proof-item {
  border-left-color: transparent;
  position: relative;
  padding-left: 1.2rem;
}

.hero-proof-label {
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: 0.68rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.hero-proof-value {
  color: var(--text-primary);
  font-family: var(--font-display);
  font-size: clamp(1.25rem, 2vw, 1.8rem);
  font-weight: 600;
  line-height: 1.1;
  letter-spacing: -0.04em;
}

.hero-proof-detail {
  color: var(--text-secondary);
  font-size: 0.86rem;
  line-height: 1.65;
}

.hero-proof-motion .hero-proof-item + .hero-proof-item::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.95rem;
  bottom: 0.95rem;
  width: 1px;
  background: var(--border-color);
  transform: scaleY(0);
  transform-origin: top center;
}

.hero-proof-motion.animate-in .hero-proof-item + .hero-proof-item::before {
  animation: heroDividerReveal 0.32s ease forwards;
}

.hero-proof-motion.animate-in .hero-proof-item:nth-child(2)::before {
  animation-delay: 0.16s;
}

.hero-proof-motion.animate-in .hero-proof-item:nth-child(3)::before {
  animation-delay: 0.3s;
}

.hero-lead {
  max-width: 720px;
  color: var(--text-secondary);
  font-size: 1rem;
  line-height: 1.95;
  margin: 1.5rem 0 0;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-top: 2rem;
}

.hero-link-subtle {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  min-height: 44px;
  color: var(--text-secondary);
  text-decoration: none;
  font-weight: 500;
  transition: var(--transition);
}

.hero-link-subtle:hover {
  color: var(--text-primary);
}

.home-main {
  display: flex;
  flex-direction: column;
  gap: 3.5rem;
}

.home-section {
  position: relative;
}

.section-heading {
  margin-bottom: 1.5rem;
}

.section-heading-split {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}

.section-kicker {
  margin: 0 0 0.5rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.03em;
  text-transform: uppercase;
}

.section-title.no-line::after {
  display: none;
}

.section-link {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.92rem;
}

.section-link:hover {
  color: var(--primary-light);
}

.overview-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1.25rem;
}

.overview-item {
  padding: 1.5rem 0 0;
  border-top: 1px solid var(--border-color);
}

.overview-index {
  color: var(--primary-light);
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.08em;
}

.overview-item h3,
.feature-project h3,
.skill-summary-block h3 {
  font-family: var(--font-display);
  margin: 0.65rem 0 0.75rem;
  font-size: 1.15rem;
  font-weight: 600;
  letter-spacing: -0.05em;
  color: var(--text-primary);
}

.overview-item p,
.feature-project p,
.profile-summary p,
.skill-summary-block p {
  margin: 0;
  color: var(--text-secondary);
  line-height: 1.8;
}

.feature-project-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.5rem;
}

.feature-project {
  padding: 1.75rem;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  background: var(--bg-card);
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.feature-project::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: #171717;
  border-radius: 24px 24px 0 0;
  opacity: 0;
  transition: var(--transition);
}

.feature-project:hover::before {
  opacity: 1;
}

.feature-project:hover {
  border-color: var(--border-hover);
  background: var(--bg-card-hover);
  box-shadow: var(--shadow-glow);
  transform: translateY(-3px);
}

.feature-project-link {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  margin-top: 1.25rem;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-primary);
  text-decoration: none;
  transition: var(--transition);
}

.feature-project-link:hover {
  gap: 0.65rem;
  color: #0072f5;
}

.feature-project-label {
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.03em;
  text-transform: uppercase;
}

.career-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(280px, 360px);
  gap: 2rem;
  align-items: start;
  margin-bottom: 2rem;
}

.career-main {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.profile-summary {
  padding-bottom: 1.5rem;
  margin-bottom: 1.5rem;
  border-bottom: 1px solid var(--border-color);
}

.career-summary {
  margin-bottom: 0;
  padding-bottom: 1.25rem;
}

.compact-timeline {
  padding-left: 1.5rem;
}

.compact-timeline .timeline-item {
  padding-bottom: 1.5rem;
}

.career-side-panel,
.publishing-card {
  padding: 1.5rem;
  border: none;
  border-radius: var(--radius-md);
  background: var(--bg-card);
  box-shadow: var(--shadow-md);
}

.career-side-panel h3,
.publishing-card h3 {
  margin-top: 0;
}

.publishing-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.5rem;
}

.publishing-card p {
  margin: 0 0 1rem;
  color: var(--text-secondary);
}

.publishing-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.compact-list li {
  padding: 0.75rem 0.9rem;
  font-size: 0.9rem;
}

.skill-summary-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1.5rem;
}

.skill-summary-block {
  padding-top: 1.25rem;
  border-top: 1px solid var(--border-color);
}

.hero-social a {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.6rem 1.5rem;
  min-height: 44px;
  border-radius: 8px;
  text-decoration: none;
  font-weight: 500;
  font-size: 0.9rem;
  transition: var(--transition);
  margin: 0 0.4rem;
}

.btn-social-qiita,
.btn-social-github {
  border: none;
  box-shadow: var(--shadow-sm);
}

.btn-social-qiita {
  color: #0068d6;
  background: #ebf5ff;
}

.btn-social-qiita:hover {
  background: #dcebff;
  color: #0050a8;
}

.btn-social-github {
  color: var(--text-primary);
  background: #ffffff;
}

.btn-social-github:hover {
  background: #f3f4f6;
  color: var(--text-primary);
}

.home-editorial {
  background:
    radial-gradient(circle at top right, rgba(67, 56, 202, 0.07), transparent 28%),
    linear-gradient(180deg, #ffffff 0%, #fbfbfc 42%, #ffffff 100%);
}

.home-hero-stage {
  padding: 8.5rem 0 3.5rem;
  position: relative;
}

.home-hero-wrap {
  width: min(1280px, calc(100vw - 3rem));
  margin: 0 auto;
}

.home-hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(280px, 0.62fr);
  gap: 3.25rem;
  align-items: start;
}

.home-editorial .hero-copy {
  max-width: 760px;
}

.hero-intro {
  max-width: 34rem;
  margin: 0 0 1.35rem;
  color: var(--text-muted);
  font-size: 0.98rem;
  line-height: 1.85;
}

.home-editorial .hero-title-compact {
  max-width: 900px;
}

.home-editorial .hero-title-main {
  font-size: clamp(1.9rem, 3.7vw, 3.15rem);
  line-height: 1.18;
  letter-spacing: -0.05em;
  max-width: 18ch;
}

.home-editorial .hero-lead {
  max-width: 43rem;
  font-size: 1.03rem;
}

.hero-side-notes {
  display: grid;
  align-content: start;
  gap: 1.5rem;
  padding-top: 8.5rem;
}

.home-editorial .hero-proof-list {
  margin-top: 0;
  max-width: none;
  grid-template-columns: 1fr;
}

.home-editorial .hero-proof-item {
  padding: 1rem 0;
}

.home-editorial .hero-proof-motion .hero-proof-item + .hero-proof-item {
  padding-left: 0;
}

.home-editorial .hero-proof-motion .hero-proof-item + .hero-proof-item::before {
  left: 0;
  right: 0;
  top: 0;
  bottom: auto;
  width: 100%;
  height: 1px;
  transform: scaleX(0);
  transform-origin: left center;
}

.home-editorial .hero-proof-motion.animate-in .hero-proof-item + .hero-proof-item::before {
  animation-name: heroLineReveal;
}

.hero-side-note {
  display: grid;
  gap: 0.55rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border-color);
}

.hero-side-note span {
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.hero-side-note p {
  margin: 0;
  color: var(--text-secondary);
  line-height: 1.85;
}

.home-editorial-main {
  padding: 1rem 0 0;
  --content-divider-space: 1.25rem;
}

.home-editorial .home-main {
  gap: 5rem;
}

.section-note {
  max-width: 28rem;
  margin: 0;
  color: var(--text-muted);
  line-height: 1.8;
}

.editorial-overview-grid {
  gap: 2rem;
}

.editorial-overview-item {
  padding-top: var(--content-divider-space);
}

.editorial-overview-item h3 {
  font-size: 1.35rem;
}

.project-spotlight {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(320px, 0.95fr);
  gap: 2rem;
  align-items: start;
  padding-top: 1rem;
}

.project-spotlight-media {
  position: relative;
}

.project-spotlight-image {
  width: 100%;
  border-radius: 1.5rem;
  border: 1px solid rgba(23, 23, 23, 0.08);
  box-shadow: 0 20px 54px rgba(23, 23, 23, 0.08);
  transition: var(--transition);
}

.project-spotlight-image:hover {
  transform: translateY(-4px);
  box-shadow: 0 28px 72px rgba(23, 23, 23, 0.12);
}

.project-spotlight-copy {
  display: grid;
  gap: 1rem;
  padding-top: 0.5rem;
}

.project-spotlight-copy h3 {
  margin: 0;
  font-size: 2rem;
  letter-spacing: -0.05em;
}

.project-spotlight-lead {
  margin: 0;
  color: var(--text-secondary);
  font-size: 1rem;
  line-height: 1.9;
}

.project-spotlight-points {
  display: grid;
  gap: 0.75rem;
  padding: var(--content-divider-space) 0 0;
  border-top: 1px solid var(--border-color);
}

.project-spotlight-points p {
  margin: 0;
  color: var(--text-secondary);
}

.project-spotlight-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-top: 0.5rem;
}

.profile-columns {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(280px, 340px);
  gap: 2.5rem;
  align-items: start;
}

.profile-column-lead {
  max-width: 46rem;
  margin: 0 0 1.5rem;
  color: var(--text-secondary);
  line-height: 1.9;
}

.editorial-timeline {
  border-top: 1px solid var(--border-color);
  margin-top: 1rem;
  padding-top: var(--content-divider-space);
}

.profile-column-side {
  display: grid;
  gap: 1rem;
}

.side-note-block {
  padding-top: var(--content-divider-space);
  border-top: 1px solid var(--border-color);
}

.side-note-block h3 {
  margin: 0 0 0.7rem;
  font-size: 1.1rem;
}

.side-note-block p {
  margin: 0;
  color: var(--text-secondary);
  line-height: 1.8;
}

.editorial-cert-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.editorial-cert-list li {
  padding-left: 0;
}

.editorial-skill-grid {
  gap: 2rem;
}

.editorial-skill-block {
  display: grid;
  gap: 0.9rem;
  align-content: start;
}

.editorial-skill-block h3 {
  margin-bottom: 0;
}

.editorial-skill-block p {
  margin: 0;
}

.editorial-publishing-grid {
  gap: 2rem;
}

.editorial-publishing-card {
  padding: var(--content-divider-space) 0 1.2rem;
  border: none;
  border-radius: 0;
  background: transparent;
  box-shadow: none;
  border-top: 1px solid var(--border-color);
}

.home-editorial .btn-outline-modern {
  background: #fff;
}

/* --- セクション共通 --- */
.section-block {
  padding: 4rem 0;
  position: relative;
}

.section-title {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 600;
  letter-spacing: -0.08em;
  margin-bottom: 0.5rem;
  position: relative;
  display: inline-block;
}

.section-title::after {
  content: '';
  position: absolute;
  bottom: -8px;
  left: 0;
  width: 60px;
  height: 3px;
  background: #171717;
  border-radius: 2px;
}

.section-subtitle {
  color: var(--text-muted);
  font-size: 0.95rem;
  margin-top: 1rem;
  margin-bottom: 3rem;
}

/* --- カード --- */
.glass-card {
  background: var(--bg-card);
  border: none;
  border-radius: var(--radius-md);
  padding: 2rem;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.glass-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--gradient-primary);
  opacity: 0;
  transition: var(--transition);
}

.glass-card:hover {
  background: var(--bg-card-hover);
  box-shadow: var(--shadow-glow);
  transform: translateY(-3px);
}

.glass-card:hover::before {
  opacity: 1;
}

/* --- タイムラインスタイル --- */
.timeline {
  position: relative;
  padding-left: 2rem;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(180deg, var(--primary), var(--accent), transparent);
}

.timeline-item {
  position: relative;
  padding-bottom: 2rem;
  padding-left: 1.5rem;
}

.timeline-item::before {
  content: '';
  position: absolute;
  left: -2rem;
  top: 6px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--primary);
  border: 2px solid var(--bg-dark);
  box-shadow: 0 0 10px rgba(99, 102, 241, 0.4);
}

.timeline-item:last-child {
  padding-bottom: 0;
}

.timeline-date {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-muted);
  font-weight: 500;
  margin-bottom: 0.3rem;
  letter-spacing: 0.01em;
}

.timeline-content {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.7;
}

/* --- スキルバッジ --- */
.skill-category {
  margin-bottom: 2rem;
}

.skill-category-title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.skill-category-title i {
  color: var(--primary-light);
  font-size: 1.1rem;
}

.skill-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
}

.skill-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.35rem 0.85rem;
  background: rgba(67, 56, 202, 0.07);
  border: 1px solid rgba(67, 56, 202, 0.18);
  border-radius: 5px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--primary);
  font-weight: 500;
  transition: var(--transition);
}

.skill-badge:hover {
  background: rgba(99, 102, 241, 0.2);
  border-color: rgba(99, 102, 241, 0.4);
  transform: translateY(-2px);
}

.skill-badge.accent {
  background: rgba(8, 145, 178, 0.07);
  border-color: rgba(8, 145, 178, 0.2);
  color: var(--accent-dark);
}

.skill-badge.accent:hover {
  background: rgba(8, 145, 178, 0.15);
  border-color: rgba(8, 145, 178, 0.35);
}

.skill-badge.green {
  background: rgba(34, 197, 94, 0.07);
  border-color: rgba(34, 197, 94, 0.2);
  color: #166534;
}

.skill-badge.green:hover {
  background: rgba(34, 197, 94, 0.15);
  border-color: rgba(34, 197, 94, 0.35);
}

/* --- 案件カード --- */
.experience-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  margin-bottom: 1rem;
  position: relative;
  transition: var(--transition);
  overflow: hidden;
}

.experience-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 3px;
  height: 100%;
  background: var(--gradient-primary);
  border-radius: 3px 0 0 3px;
}

.experience-card:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-hover);
  box-shadow: var(--shadow-glow);
}

.experience-header {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 0.5rem;
  flex-wrap: wrap;
}

.experience-period {
  font-size: 0.8rem;
  color: var(--primary-light);
  font-weight: 500;
}

.experience-title {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 0.4rem;
}

.experience-desc {
  font-size: 0.88rem;
  color: var(--text-muted);
  margin-bottom: 0.75rem;
  line-height: 1.6;
}

.experience-card .skill-badges {
  margin-top: 0.5rem;
}

/* --- 資格リスト --- */
.cert-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.cert-list li {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.8rem 1rem;
  margin-bottom: 0.5rem;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  transition: var(--transition);
}

.cert-list li:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-hover);
}

.cert-list li i {
  color: var(--accent);
  font-size: 1rem;
}

/* --- Qiita記事カード --- */
.qiita-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1.5rem;
}

.qiita-card h5 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 1rem;
  color: var(--text-primary);
}

.qiita-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.qiita-list li {
  padding: 0.6rem 0;
  border-bottom: 1px solid var(--border-color);
}

.qiita-list li:last-child {
  border-bottom: none;
}

.qiita-list .qiita-status {
  color: var(--text-muted);
  font-size: 0.9rem;
  border-bottom: none;
}

.qiita-list li a {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.9rem;
  transition: var(--transition);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.qiita-list li a::before {
  content: '\f15c';
  font-family: 'Font Awesome 6 Free';
  font-weight: 400;
  color: var(--primary-light);
  font-size: 0.85rem;
  flex-shrink: 0;
}

.qiita-list li a:hover {
  color: var(--primary-light);
}

/* --- ホームページレイアウト --- */
.homepage-row {
  display: grid;
  grid-template-columns: 320px 1fr;
  gap: 2rem;
  padding: 2rem 1rem;
  max-width: 1200px;
  margin: 0 auto;
  background: none;
  box-shadow: none;
  align-items: flex-start;
}

.left-column-stack {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  position: sticky;
  top: 100px;
}

/* --- フローティングカード（ホーム用）--- */
.floating-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  padding: 1.5rem;
  font-family: var(--font-main);
  transition: var(--transition);
  min-width: 0;
  max-width: none;
  flex-shrink: 0;
}

.floating-card:hover {
  border-color: var(--border-hover);
  box-shadow: var(--shadow-glow);
}

.center-card {
  background: var(--bg-card) !important;
  min-width: 0;
  max-width: none;
  flex: 1;
  border-style: solid;
  border-width: 1px;
  border-color: var(--border-color);
  box-shadow: var(--shadow-sm);
  padding: 2rem;
}

.left-card, .right-card {
  font-family: var(--font-main);
  min-width: 0;
  max-width: none;
  transform: none;
  margin-top: 0;
}

/* --- ページヘッダー --- */
.page-header {
  padding: 7rem 0 3rem;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.page-header::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 480px;
  height: 480px;
  background: transparent;
  border-radius: 50%;
  pointer-events: none;
}

.page-header::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 120px;
  height: 3px;
  background: var(--gradient-primary);
  border-radius: 2px;
}

.page-header h1 {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 4vw, 2.4rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 0.6rem;
}

.page-header p {
  color: var(--text-secondary);
  font-size: 1rem;
  font-weight: 400;
  margin-bottom: 0;
}

/* --- パンくず --- */
.breadcrumb {
  list-style: none;
  display: flex;
  gap: 0.5rem;
  font-size: 0.85rem;
  padding: 0.8rem 1.2rem;
  margin: 0;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
}

.breadcrumb-item::after {
  content: "/";
  margin: 0 0.4rem;
  color: var(--text-muted);
}

.breadcrumb-item:last-child::after {
  content: "";
}

.breadcrumb-item a {
  text-decoration: none;
  color: var(--primary-light);
  transition: var(--transition);
}

.breadcrumb-item a:hover {
  color: var(--accent-dark);
}

.breadcrumb-item.active {
  color: var(--text-secondary);
  font-weight: 400;
}

/* --- プロジェクトカード --- */
.project-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 2rem;
  margin-bottom: 2rem;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.project-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: var(--gradient-primary);
  border-radius: 4px 0 0 4px;
}

.project-card:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-hover);
  box-shadow: var(--shadow-glow);
  transform: translateY(-2px);
}

.project-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  background: var(--gradient-primary);
  border-radius: 50%;
  color: #fff;
  font-weight: 700;
  font-size: 0.85rem;
  margin-right: 0.75rem;
}

.project-title {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text-primary);
  display: flex;
  align-items: center;
}

.project-tech {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin: 1rem 0;
}

.tech-tag {
  padding: 0.25rem 0.7rem;
  background: rgba(8, 145, 178, 0.08);
  border: 1px solid rgba(8, 145, 178, 0.22);
  border-radius: 4px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 500;
  color: var(--accent-dark);
  letter-spacing: 0.01em;
}

.project-links {
  display: flex;
  gap: 0.75rem;
  margin-top: 1.5rem;
}

.project-links .btn-project {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1.2rem;
  min-height: 44px;
  border-radius: var(--radius-sm);
  text-decoration: none;
  font-size: 0.85rem;
  font-weight: 500;
  transition: var(--transition);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
}

.project-links .btn-project:hover {
  border-color: var(--primary);
  color: var(--primary-light);
  background: rgba(99, 102, 241, 0.1);
}

/* --- ダイアグラム --- */
.diagram {
  max-width: 100%;
  height: auto;
  margin: 1.5rem 0;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-md);
  transition: var(--transition);
}

.diagram.diagram-zoomable {
  cursor: zoom-in;
}

.diagram:hover {
  box-shadow: var(--shadow-lg);
  border-color: var(--border-hover);
}

.diagram-hint {
  display: block;
  text-align: center;
  font-size: 0.78rem;
  color: var(--text-muted);
  margin-top: -0.75rem;
  margin-bottom: 1rem;
}

/* --- ライトボックス --- */
.lightbox-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.85);
  z-index: 9000;
  align-items: center;
  justify-content: center;
  cursor: zoom-out;
}

.lightbox-overlay.is-open {
  display: flex;
}

.lightbox-overlay img {
  max-width: 90vw;
  max-height: 90vh;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  object-fit: contain;
}

.lightbox-close {
  position: fixed;
  top: 1.25rem;
  right: 1.5rem;
  background: none;
  border: none;
  color: #fff;
  font-size: 2rem;
  line-height: 1;
  cursor: pointer;
  opacity: 0.8;
  z-index: 9001;
}

.lightbox-close:hover {
  opacity: 1;
}

/* --- コンタクトページ --- */
.contact-info {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
}

.contact-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 2rem;
  text-align: center;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}

.contact-card:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-hover);
  box-shadow: var(--shadow-glow);
  transform: translateY(-3px);
}

.contact-icon {
  width: 60px;
  height: 60px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--gradient-primary);
  border-radius: 50%;
  margin-bottom: 1rem;
  font-size: 1.4rem;
  color: #fff;
}

.contact-card h4 {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.contact-card p {
  color: var(--text-muted);
  font-size: 0.9rem;
  margin-bottom: 1rem;
}

.contact-card a {
  color: var(--primary-light);
  text-decoration: none;
  font-weight: 500;
  transition: var(--transition);
}

.contact-card a:hover {
  color: var(--accent-dark);
}

/* --- ボタン共通 --- */
.btn-modern {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.7rem 1.25rem;
  min-height: 44px;
  border-radius: 8px;
  font-weight: 500;
  font-size: 0.88rem;
  text-decoration: none;
  transition: var(--transition);
  border: none;
  cursor: pointer;
}

.btn-gradient {
  background: #171717;
  color: #fff;
  box-shadow: var(--shadow-sm);
}

.btn-gradient:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
  color: #fff;
}

.btn-outline-modern {
  border: none;
  color: var(--text-secondary);
  background: #ffffff;
  box-shadow: var(--shadow-sm);
}

.btn-outline-modern:hover {
  color: var(--text-primary);
  background: #f7f7f8;
  box-shadow: var(--shadow-md);
}

/* --- フッター --- */
.site-footer {
  background: var(--bg-card);
  border-top: 1px solid var(--border-color);
  padding: 2rem 0;
  margin-top: 4rem;
  position: relative;
  z-index: 1;
}

.footer-brand {
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--text-primary);
}

.footer-brand-icon {
  width: 26px;
  height: 26px;
  margin-right: 0.55rem;
  border-radius: 50%;
  object-fit: cover;
  vertical-align: -0.35rem;
  border: 1px solid rgba(23, 23, 23, 0.08);
}

.footer-text {
  color: var(--text-secondary);
  font-size: 0.85rem;
  margin-top: 0.3rem;
  font-weight: 400;
}

.footer-social {
  display: flex;
  gap: 1rem;
  justify-content: center;
  margin-bottom: 0.5rem;
}

@media (min-width: 768px) {
  .footer-social {
    justify-content: flex-end;
  }
}

.footer-social a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  text-decoration: none;
  transition: var(--transition);
}

.footer-social a:hover {
  border-color: var(--primary);
  color: var(--primary-light);
  background: rgba(99, 102, 241, 0.1);
}

.footer-copy {
  color: var(--text-muted);
  font-size: 0.8rem;
}

/* --- アニメーション --- */
@keyframes heroUnderlineReveal {
  0% {
    opacity: 0;
    transform: scaleX(0);
  }
  35% {
    opacity: 1;
  }
  100% {
    opacity: 1;
    transform: scaleX(1);
  }
}

@keyframes heroLineReveal {
  from {
    transform: scaleX(0);
  }
  to {
    transform: scaleX(1);
  }
}

@keyframes heroDividerReveal {
  from {
    transform: scaleY(0);
  }
  to {
    transform: scaleY(1);
  }
}

@keyframes heroProofTextIn {
  from {
    opacity: 0;
    transform: translateY(12px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes heroIconFloat {
  0%,
  100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-4px);
  }
}

.fade-up {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-up.animate-in {
  opacity: 1;
  transform: translateY(0);
}

/* 遅延用 */
.delay-1 { transition-delay: 0.1s; }
.delay-2 { transition-delay: 0.2s; }
.delay-3 { transition-delay: 0.3s; }
.delay-4 { transition-delay: 0.4s; }

/* --- Bootstrapオーバーライド --- */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  transition: var(--transition);
}

.card:hover {
  border-color: var(--border-hover);
  box-shadow: var(--shadow-glow);
}

.card-body {
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
}

.card-body .status-badge {
  margin-top: auto;
  align-self: flex-start;
  padding-top: 0.75rem;
}

.card-title {
  color: var(--text-primary);
  font-weight: 600;
}

.card-text {
  color: var(--text-secondary);
}

.text-muted {
  color: var(--text-muted) !important;
}

.btn-outline-success {
  border-color: #55c500;
  color: #55c500;
}

.btn-outline-success:hover {
  background: #55c500;
  border-color: #55c500;
  color: #fff;
}

.btn-outline-dark {
  border-color: var(--text-secondary);
  color: var(--text-secondary);
}

.btn-outline-dark:hover {
  background: var(--text-primary);
  border-color: var(--text-primary);
  color: var(--bg-dark);
}

.btn-secondary {
  background: rgba(99, 102, 241, 0.1);
  border: 1px solid rgba(99, 102, 241, 0.3);
  color: var(--primary-light);
}

.btn-secondary:hover {
  background: rgba(99, 102, 241, 0.2);
  border-color: var(--primary);
  color: var(--primary-light);
}

a {
  color: var(--primary-light);
  transition: var(--transition);
}

a:hover {
  color: var(--accent-dark);
}

/* --- セクション区切り線 --- */
.section-divider {
  border: none;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--border-color), transparent);
  margin: 2rem 0;
}

/* --- 「戻る」ボタン --- */
.back-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.6rem 1.5rem;
  border: 1px solid var(--border-color);
  border-radius: 50px;
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.9rem;
  transition: var(--transition);
}

.back-link:hover {
  border-color: var(--primary);
  color: var(--primary-light);
  background: rgba(99, 102, 241, 0.1);
}

/* --- ステータスバッジ --- */
.status-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  padding: 0.25rem 0.8rem;
  border-radius: 50px;
  font-size: 0.75rem;
  font-weight: 500;
}

.status-wip {
  background: rgba(250, 204, 21, 0.1);
  border: 1px solid rgba(250, 204, 21, 0.3);
  color: #b45309;
}

.status-done {
  background: rgba(34, 197, 94, 0.1);
  border: 1px solid rgba(34, 197, 94, 0.3);
  color: #15803d;
}

.status-planned {
  background: rgba(99, 102, 241, 0.1);
  border: 1px solid rgba(99, 102, 241, 0.3);
  color: var(--primary-light);
}

/* --- レスポンシブ --- */
@media (max-width: 1100px) {
  .homepage-row {
    grid-template-columns: 1fr;
    gap: 1rem;
  }
  .left-column-stack {
    position: static;
    flex-direction: row;
    flex-wrap: wrap;
    gap: 1rem;
  }
  .floating-card {
    flex: 1 1 280px;
  }
}

@media (max-width: 768px) {
  .home-hero-stage {
    padding: 7rem 0 2.5rem;
  }
  .home-hero-wrap {
    width: min(100vw - 1.5rem, 1280px);
  }
  .home-hero-grid,
  .project-spotlight,
  .profile-columns {
    grid-template-columns: 1fr;
  }
  .hero-section {
    padding: 7rem 0 2rem;
  }
  .hero-home {
    padding: 7rem 0 2rem;
  }
  .hero-name {
    font-size: 1.8rem;
  }
  .hero-name-left {
    font-size: 2.3rem;
  }
  .hero-title-main {
    font-size: 2.2rem;
  }
  .hero-proof-list {
    grid-template-columns: 1fr;
  }
  .hero-proof-item {
    padding: 0.95rem 0;
  }
  .hero-proof-motion .hero-proof-item + .hero-proof-item {
    padding-left: 0;
  }
  .hero-proof-motion .hero-proof-item + .hero-proof-item::before {
    left: 0;
    right: 0;
    top: 0;
    bottom: auto;
    width: 100%;
    height: 1px;
    transform: scaleX(0);
    transform-origin: left center;
  }
  .hero-proof-motion.animate-in .hero-proof-item + .hero-proof-item::before {
    animation-name: heroLineReveal;
  }
  .home-editorial .hero-title-main {
    max-width: none;
    font-size: 2.25rem;
  }
  .hero-side-notes {
    padding-top: 0;
    gap: 1.25rem;
  }
  .section-note {
    max-width: none;
  }
  .hero-tagline {
    font-size: 0.95rem;
  }
  .hero-social a {
    padding: 0.5rem 1rem;
    font-size: 0.8rem;
  }
  .page-header {
    padding: 6rem 0 2rem;
  }
  .page-header h1 {
    font-size: 1.6rem;
  }
  .section-title {
    font-size: 1.4rem;
  }
  .glass-card {
    padding: 1.5rem;
  }
  .project-card {
    padding: 1.5rem;
  }
  .homepage-row {
    padding: 1rem 0.5rem;
  }
  .left-column-stack {
    flex-direction: column;
  }
  .floating-card {
    flex: 1 1 100%;
  }
  .center-card {
    padding: 1.5rem;
  }
  .hero-home-grid,
  .feature-project-grid,
  .overview-grid,
  .career-grid,
  .publishing-grid,
  .skill-summary-grid {
    grid-template-columns: 1fr;
  }
  .editorial-overview-grid,
  .editorial-publishing-grid,
  .editorial-skill-grid {
    gap: 1.5rem;
  }
  .hero-actions {
    flex-direction: column;
  }
  .hero-actions .btn-modern,
  .hero-link-subtle {
    justify-content: center;
    width: 100%;
  }
}

@media (max-width: 480px) {
  .home-hero-wrap {
    width: calc(100vw - 1rem);
  }
  .hero-title-main {
    width: 100%;
    font-size: 1.75rem;
  }
  .home-editorial .hero-title-main {
    font-size: 1.8rem;
  }
  .hero-proof-value {
    font-size: 1.35rem;
  }
  .hero-identity {
    gap: 0.75rem;
  }
  .hero-identity-icon {
    width: 46px;
    height: 46px;
  }
  .project-spotlight-copy h3 {
    font-size: 1.55rem;
  }
  .hero-social {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
  }
  .hero-social a {
    width: 100%;
    max-width: 200px;
    justify-content: center;
  }
  .project-links {
    flex-direction: column;
  }
}

/* --- カード内見出しスタイル --- */
.center-card h2 {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--text-primary);
  position: relative;
  padding-bottom: 0.75rem;
  letter-spacing: 0;
}

.center-card h2.border-bottom {
  border-bottom: 1px solid var(--border-color) !important;
}

.center-card h3 {
  font-size: 1rem;
  font-weight: 600;
  color: var(--primary-light);
}

.center-card h4 {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--accent-dark);
}

.center-card ul {
  color: var(--text-secondary);
}

.center-card ul li {
  margin-bottom: 0.5rem;
  line-height: 1.7;
}

.center-card p {
  color: var(--text-secondary);
  line-height: 1.8;
}

/* rounded-circle override */
.rounded-circle {
  border: 3px solid var(--primary) !important;
  box-shadow: 0 0 20px rgba(99, 102, 241, 0.3);
}

/* --- ギャラリーカード --- */
.gallery-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: var(--transition);
}

.gallery-card:hover {
  border-color: var(--border-hover);
  box-shadow: var(--shadow-glow);
  transform: translateY(-4px);
}

.gallery-card img {
  width: 100%;
  height: auto;
  display: block;
}

.gallery-card-body {
  padding: 1.5rem;
}

.gallery-card-header {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 0.75rem;
}

.gallery-card-title {
  margin: 0;
}

.gallery-card-tech {
  margin-top: 0.75rem;
}

.gallery-card-meta {
  color: var(--text-muted);
  font-size: 0.8rem;
  margin: 0.75rem 0 0;
}

.gallery-placeholder-card {
  min-height: 300px;
  height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
}

.gallery-placeholder-icon {
  font-size: 3rem;
  color: var(--text-muted);
  margin-bottom: 1rem;
  opacity: 0.5;
}

.gallery-placeholder-text {
  color: var(--text-muted);
  margin: 0;
  font-size: 0.95rem;
}

.gallery-card-body h3 {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 0.5rem;
}

.gallery-card-body p {
  color: var(--text-secondary);
  font-size: 0.9rem;
}

/* --- コンテナ微調整 --- */
.container {
  max-width: 1200px;
}

/* ホームで使うlist-unstyled内のa */
.list-unstyled a {
  color: var(--text-secondary);
  text-decoration: none;
}

.list-unstyled a:hover {
  color: var(--primary-light);
}

/* カード内セクション */
.center-card section {
  padding: 0.5rem 0;
}

/* --- プロジェクト詳細スタイル --- */
.project-desc {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.7;
  margin-top: 1rem;
  margin-bottom: 0.5rem;
}

.project-desc-tight {
  margin-top: 0;
}

.project-subsection-title {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-top: 1.5rem;
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.project-subsection-title i {
  color: var(--accent);
}

/* プロジェクトカード内のサブカード（Bootstrap .card を上書き） */
.project-card .card {
  background: rgba(99, 102, 241, 0.04);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  box-shadow: none;
}

.project-card .card-body {
  padding: 1rem 1.2rem;
}

.project-card .card-title {
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 0.4rem;
  color: var(--text-secondary);
}

.project-card .card-text {
  font-size: 0.82rem;
  color: var(--text-muted);
  margin-bottom: 0.75rem;
  line-height: 1.6;
}

.icon-qiita {
  color: #55c500;
}

.diagram-centered {
  max-width: 65%;
}

.placeholder-panel {
  text-align: center;
}

.placeholder-panel-spaced {
  margin-top: 2rem;
}

.placeholder-note {
  color: var(--text-muted);
  margin: 0;
}

/* --- prefers-reduced-motion（動き軽減設定への対応）--- */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }

  .fade-up {
    opacity: 1;
    transform: none;
  }

  .fade-up.animate-in {
    opacity: 1;
    transform: none;
  }

  .hero-headline-motion::after,
  .hero-proof-motion::before,
  .hero-proof-motion::after,
  .hero-proof-motion .hero-proof-item + .hero-proof-item::before {
    opacity: 1;
    transform: none;
    animation: none !important;
  }

  .hero-proof-item {
    opacity: 1;
    transform: none;
    animation: none !important;
  }

  .hero-float-icon {
    animation: none !important;
    transform: none !important;
  }
}

/* ============================================
   Hero — Blueprint Editorial (index.html)
   self-contained, prefixed with .hero-blueprint / .bp-*
   ============================================ */

.hero-blueprint {
  --bp-paper: #f7f5ee;
  --bp-paper-deep: #efece1;
  --bp-ink: #0e1a2b;
  --bp-ink-soft: #1a2847;
  --bp-muted: #6b6a63;
  --bp-accent: #d94a2b;
  --bp-line: rgba(14, 26, 43, 0.16);
  --bp-line-soft: rgba(14, 26, 43, 0.08);
  --bp-grid-dot: rgba(14, 26, 43, 0.09);
  --bp-edge: clamp(1.25rem, 3.2vw, 3rem);
  --bp-edge-top: clamp(7rem, 10vw, 9rem);
  --bp-edge-bottom: clamp(3.5rem, 7vw, 5.5rem);

  position: relative;
  isolation: isolate;
  min-height: 100vh;
  padding: var(--bp-edge-top) var(--bp-edge) var(--bp-edge-bottom);
  background-color: var(--bp-paper);
  color: var(--bp-ink);
  overflow: hidden;
  font-family: 'Zen Kaku Gothic New', sans-serif;
}

.hero-blueprint::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(circle at 1px 1px, var(--bp-grid-dot) 1px, transparent 0),
    linear-gradient(var(--bp-line-soft) 1px, transparent 1px);
  background-size: 28px 28px, 100% 112px;
  background-position: 0 0, 0 -1px;
  mask-image: radial-gradient(ellipse 120% 85% at 50% 40%, black 55%, transparent 100%);
  -webkit-mask-image: radial-gradient(ellipse 120% 85% at 50% 40%, black 55%, transparent 100%);
  pointer-events: none;
  z-index: 0;
}

.hero-blueprint::after {
  content: '';
  position: absolute;
  left: calc(var(--bp-edge) + 14px);
  top: calc(var(--bp-edge-top) + 3.5rem);
  width: clamp(48px, 6vw, 84px);
  height: 2px;
  background: var(--bp-accent);
  pointer-events: none;
  z-index: 1;
  opacity: 0;
  animation: bpRuleIn 900ms cubic-bezier(0.2, 0.7, 0.2, 1) 0.55s forwards;
}

.hero-blueprint .bp-mark {
  position: absolute;
  width: 28px;
  height: 28px;
  z-index: 2;
  pointer-events: none;
}
.hero-blueprint .bp-mark::before,
.hero-blueprint .bp-mark::after {
  content: '';
  position: absolute;
  background: var(--bp-ink);
}
.hero-blueprint .bp-mark::before { left: 50%; top: 0; bottom: 0; width: 1px; transform: translateX(-50%); }
.hero-blueprint .bp-mark::after  { top: 50%; left: 0; right: 0; height: 1px; transform: translateY(-50%); }
.hero-blueprint .bp-mark--tl { top: calc(var(--bp-edge-top) - 2.5rem); left: var(--bp-edge); }
.hero-blueprint .bp-mark--tr { top: calc(var(--bp-edge-top) - 2.5rem); right: var(--bp-edge); }
.hero-blueprint .bp-mark--bl { bottom: calc(var(--bp-edge-bottom) * 0.55); left: var(--bp-edge); }
.hero-blueprint .bp-mark--br { bottom: calc(var(--bp-edge-bottom) * 0.55); right: var(--bp-edge); }

.hero-blueprint .bp-meta {
  position: absolute;
  left: calc(var(--bp-edge) + 44px);
  right: calc(var(--bp-edge) + 44px);
  display: flex;
  align-items: center;
  gap: clamp(0.75rem, 1.4vw, 1.5rem);
  flex-wrap: wrap;
  font-family: 'Space Mono', 'JetBrains Mono', monospace;
  font-size: 0.68rem;
  letter-spacing: 0.22em;
  color: var(--bp-muted);
  text-transform: uppercase;
  z-index: 2;
}
.hero-blueprint .bp-meta--top { top: calc(var(--bp-edge-top) - 2.5rem + 10px); }
.hero-blueprint .bp-meta--bottom {
  bottom: calc(var(--bp-edge-bottom) * 0.55 + 10px);
  justify-content: flex-start;
}
.hero-blueprint .bp-meta-item em {
  font-style: normal;
  color: var(--bp-ink);
  font-weight: 500;
  margin-right: 0.4em;
}
.hero-blueprint .bp-meta-sep {
  flex: 0 0 28px;
  height: 1px;
  background: var(--bp-line);
}
.hero-blueprint .bp-meta-item--push { margin-left: auto; display: inline-flex; align-items: center; gap: 0.55em; }
.hero-blueprint .bp-status-dot {
  display: inline-block;
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--bp-accent);
  box-shadow: 0 0 0 3px rgba(217, 74, 43, 0.18);
  animation: bpPulse 1.8s ease-in-out infinite;
}

.hero-blueprint .bp-grid {
  position: relative;
  z-index: 3;
  max-width: 1320px;
  margin: clamp(3.5rem, 6vw, 5rem) auto 0;
  padding-inline: clamp(0.25rem, 2vw, 1.5rem);
  display: grid;
  grid-template-columns: minmax(0, 1.45fr) minmax(0, 1fr);
  gap: clamp(2rem, 5vw, 5rem);
  align-items: start;
}

.hero-blueprint .bp-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  margin: 0 0 clamp(1.75rem, 3vw, 2.5rem);
  font-family: 'Space Mono', 'JetBrains Mono', monospace;
  font-size: 0.78rem;
  letter-spacing: 0.18em;
  color: var(--bp-ink-soft);
  text-transform: lowercase;
}
.hero-blueprint .bp-pulse {
  width: 9px; height: 9px;
  border-radius: 50%;
  background: var(--bp-accent);
  box-shadow: 0 0 0 0 rgba(217, 74, 43, 0.5);
  animation: bpPulse 2.1s ease-in-out infinite;
}
.hero-blueprint .bp-eyebrow-path::before { content: '[ '; color: var(--bp-muted); }
.hero-blueprint .bp-eyebrow-path::after  { content: ' ]'; color: var(--bp-muted); }

.hero-blueprint .bp-title {
  margin: 0 0 clamp(2rem, 3.5vw, 2.75rem);
  font-weight: 400;
  line-height: 1;
  color: var(--bp-ink);
  letter-spacing: -0.01em;
}
.hero-blueprint .bp-title-row { display: block; }
.hero-blueprint .bp-title-row--latin {
  font-family: 'Cormorant Garamond', 'Zen Old Mincho', serif;
  font-size: clamp(3.2rem, 9.5vw, 7rem);
  line-height: 0.95;
  letter-spacing: -0.035em;
  display: flex;
  align-items: baseline;
  gap: clamp(0.5rem, 1.2vw, 1rem);
  margin-bottom: clamp(1rem, 1.8vw, 1.4rem);
}
.hero-blueprint .bp-title-word em {
  font-style: italic;
  font-variation-settings: 'opsz' 144, 'wght' 620, 'SOFT' 100;
  font-weight: 620;
  color: var(--bp-ink);
  background: linear-gradient(180deg, var(--bp-ink) 62%, var(--bp-accent) 62%, var(--bp-accent) 66%, var(--bp-ink) 66%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  padding-right: 0.05em;
}
.hero-blueprint .bp-title-tag {
  font-family: 'Space Mono', 'JetBrains Mono', monospace;
  font-size: clamp(1rem, 1.8vw, 1.5rem);
  font-weight: 500;
  letter-spacing: 0.04em;
  color: var(--bp-muted);
  align-self: flex-end;
  padding-bottom: clamp(0.5rem, 1vw, 1rem);
  white-space: nowrap;
}
.hero-blueprint .bp-title-row--jp {
  font-family: 'Zen Old Mincho', 'Noto Serif JP', serif;
  font-weight: 700;
  font-size: clamp(1.45rem, 3.2vw, 2.6rem);
  line-height: 1.55;
  letter-spacing: 0.02em;
  color: var(--bp-ink-soft);
}
.hero-blueprint .bp-title-row--indent { margin-left: clamp(1.5rem, 4vw, 3.5rem); }
.hero-blueprint .bp-title-mark {
  position: relative;
  display: inline-block;
  color: var(--bp-ink);
  padding: 0 0.15em;
}
.hero-blueprint .bp-title-mark::after {
  content: '';
  position: absolute;
  left: 0; right: 0;
  bottom: 0.16em;
  height: 0.28em;
  background: var(--bp-accent);
  opacity: 0.32;
  transform: scaleX(0);
  transform-origin: left;
  animation: bpMarkIn 700ms cubic-bezier(0.2, 0.7, 0.2, 1) 1.3s forwards;
  z-index: -1;
}
.hero-blueprint .bp-title-serif {
  font-family: 'Cormorant Garamond', 'Zen Old Mincho', serif;
  font-style: italic;
  font-weight: 500;
  letter-spacing: -0.01em;
  color: var(--bp-accent);
  font-variation-settings: 'opsz' 144, 'wght' 500;
}

.hero-blueprint .bp-lead-text {
  margin: 0 0 clamp(2rem, 3.5vw, 2.75rem);
  max-width: 44ch;
  font-size: 0.98rem;
  line-height: 1.95;
  color: var(--bp-ink-soft);
  border-left: 2px solid var(--bp-ink);
  padding-left: 1.1rem;
}

.hero-blueprint .bp-actions {
  display: flex;
  align-items: center;
  gap: clamp(0.75rem, 1.5vw, 1.25rem);
  flex-wrap: wrap;
  margin-bottom: clamp(2rem, 3.5vw, 2.75rem);
}
.hero-blueprint .bp-btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  padding: 0.95rem 1.7rem;
  font-family: 'Space Mono', 'JetBrains Mono', monospace;
  font-size: 0.82rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  text-decoration: none;
  border-radius: 0;
  transition: transform 0.35s cubic-bezier(0.2, 0.7, 0.2, 1),
              background-color 0.35s ease, color 0.35s ease;
  overflow: hidden;
  isolation: isolate;
}
.hero-blueprint .bp-btn--primary {
  background: var(--bp-ink);
  color: var(--bp-paper);
  border: 1px solid var(--bp-ink);
}
.hero-blueprint .bp-btn--primary::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--bp-accent);
  transform: translateY(100%);
  transition: transform 0.45s cubic-bezier(0.2, 0.7, 0.2, 1);
  z-index: -1;
}
.hero-blueprint .bp-btn--primary:hover { transform: translateY(-2px); }
.hero-blueprint .bp-btn--primary:hover::before { transform: translateY(0); }
.hero-blueprint .bp-btn--ghost {
  background: transparent;
  color: var(--bp-ink);
  border: 1px solid var(--bp-ink);
}
.hero-blueprint .bp-btn--ghost:hover {
  background: var(--bp-ink);
  color: var(--bp-paper);
  transform: translateY(-2px);
}
.hero-blueprint .bp-btn-arrow {
  display: inline-block;
  transition: transform 0.35s cubic-bezier(0.2, 0.7, 0.2, 1);
}
.hero-blueprint .bp-btn:hover .bp-btn-arrow { transform: translateX(4px); }

.hero-blueprint .bp-scale-line {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin: 0;
  font-family: 'Space Mono', 'JetBrains Mono', monospace;
  font-size: 0.7rem;
  letter-spacing: 0.22em;
  color: var(--bp-muted);
  text-transform: uppercase;
}
.hero-blueprint .bp-scale-tick {
  position: relative;
  width: 100px;
  height: 10px;
  flex: 0 0 auto;
}
.hero-blueprint .bp-scale-tick::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 0; right: 0;
  height: 1px;
  background: var(--bp-ink);
}
.hero-blueprint .bp-scale-tick::after {
  content: '';
  position: absolute;
  top: 0; bottom: 0;
  left: 0;
  width: 1px;
  background: var(--bp-ink);
  box-shadow: 33px 0 0 var(--bp-ink), 66px 0 0 var(--bp-ink), 99px 0 0 var(--bp-ink);
}

.hero-blueprint .bp-callouts {
  position: relative;
  display: grid;
  grid-template-columns: 1fr 1fr;
  grid-template-rows: auto auto auto;
  gap: clamp(0.9rem, 1.8vw, 1.4rem);
  padding-left: clamp(0.5rem, 1.5vw, 1.5rem);
}
.hero-blueprint .bp-callouts::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.5rem;
  bottom: 0.5rem;
  width: 1px;
  background: var(--bp-line);
}
.hero-blueprint .bp-callout {
  position: relative;
  margin: 0;
  padding: 1.35rem 1.25rem 1.25rem;
  background: var(--bp-paper-deep);
  border: 1px solid var(--bp-line);
  transition: transform 0.4s cubic-bezier(0.2, 0.7, 0.2, 1), border-color 0.4s ease;
}
.hero-blueprint .bp-callout figcaption {
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
}
.hero-blueprint .bp-callout-label,
.hero-blueprint .bp-callout-value,
.hero-blueprint .bp-callout-detail { display: block; }
.hero-blueprint .bp-callout:hover {
  transform: translateY(-3px);
  border-color: var(--bp-ink);
}
.hero-blueprint .bp-callout--a { grid-column: 1; grid-row: 1; margin-top: 0.75rem; }
.hero-blueprint .bp-callout--b { grid-column: 2; grid-row: 1; margin-top: 2.25rem; }
.hero-blueprint .bp-callout--c { grid-column: 1 / span 2; grid-row: 2; }
.hero-blueprint .bp-callout-pin {
  position: absolute;
  top: -11px;
  left: -11px;
  width: 28px; height: 28px;
  display: grid;
  place-items: center;
  font-family: 'Cormorant Garamond', serif;
  font-style: italic;
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--bp-paper);
  background: var(--bp-ink);
  border-radius: 50%;
  letter-spacing: 0;
}
.hero-blueprint .bp-callout--a .bp-callout-pin { background: var(--bp-accent); }
.hero-blueprint .bp-callout-label {
  font-family: 'Space Mono', 'JetBrains Mono', monospace;
  font-size: 0.7rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--bp-muted);
}
.hero-blueprint .bp-callout-value {
  font-family: 'Cormorant Garamond', 'Zen Old Mincho', serif;
  font-variation-settings: 'opsz' 144, 'wght' 600;
  font-weight: 600;
  font-size: clamp(2.1rem, 4vw, 2.8rem);
  line-height: 1;
  color: var(--bp-ink);
  display: flex;
  align-items: baseline;
  gap: 0.2em;
}
.hero-blueprint .bp-callout-value em {
  font-family: 'Space Mono', 'JetBrains Mono', monospace;
  font-style: normal;
  font-size: 0.85rem;
  font-weight: 500;
  letter-spacing: 0.05em;
  color: var(--bp-muted);
}
.hero-blueprint .bp-callout-value--stack {
  flex-direction: column;
  font-size: clamp(1.15rem, 2.2vw, 1.55rem);
  gap: 0.1em;
  line-height: 1.25;
}
.hero-blueprint .bp-callout-value--stack span {
  position: relative;
  padding-left: 1.1em;
}
.hero-blueprint .bp-callout-value--stack span::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.55em;
  width: 0.7em;
  height: 1px;
  background: var(--bp-accent);
}
.hero-blueprint .bp-callout-detail {
  font-family: 'Zen Old Mincho', 'Zen Kaku Gothic New', serif;
  font-size: 0.85rem;
  color: var(--bp-muted);
  letter-spacing: 0.04em;
}
.hero-blueprint .bp-current {
  grid-column: 1 / span 2;
  grid-row: 3;
  padding: 1.25rem 0 0;
  border-top: 1px dashed var(--bp-line);
}
.hero-blueprint .bp-current-label em {
  font-family: 'Cormorant Garamond', serif;
  font-style: italic;
  font-weight: 500;
  font-size: 0.85rem;
  color: var(--bp-accent);
  letter-spacing: 0.04em;
}
.hero-blueprint .bp-current p {
  margin: 0.35rem 0 0;
  font-family: 'Zen Old Mincho', 'Zen Kaku Gothic New', serif;
  font-size: 0.95rem;
  line-height: 1.85;
  color: var(--bp-ink-soft);
}

@keyframes bpPulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(217, 74, 43, 0.55); transform: scale(1); }
  50%      { box-shadow: 0 0 0 8px rgba(217, 74, 43, 0);   transform: scale(1.08); }
}
@keyframes bpRuleIn {
  from { opacity: 0; clip-path: inset(0 100% 0 0); }
  to   { opacity: 1; clip-path: inset(0 0 0 0); }
}
@keyframes bpMarkIn {
  from { transform: scaleX(0); }
  to   { transform: scaleX(1); }
}

@media (max-width: 960px) {
  .hero-blueprint {
    --bp-edge-top: clamp(6rem, 14vw, 7.5rem);
    --bp-edge-bottom: 3rem;
    min-height: auto;
  }
  .hero-blueprint .bp-grid {
    grid-template-columns: 1fr;
    gap: 2.75rem;
    margin-top: clamp(3rem, 10vw, 4rem);
  }
  .hero-blueprint .bp-callouts { padding-left: 0; }
  .hero-blueprint .bp-callouts::before { display: none; }
  .hero-blueprint .bp-meta { left: calc(var(--bp-edge) + 40px); right: calc(var(--bp-edge) + 40px); }
  .hero-blueprint .bp-meta--bottom { position: static; margin-top: 2.5rem; left: auto; right: auto; }
  .hero-blueprint::after { display: none; }
}
@media (max-width: 640px) {
  .hero-blueprint { padding-inline: 1.25rem; }
  .hero-blueprint .bp-mark { width: 20px; height: 20px; }
  .hero-blueprint .bp-meta {
    position: static;
    left: auto; right: auto;
    margin-bottom: 1.5rem;
    font-size: 0.62rem;
  }
  .hero-blueprint .bp-meta-sep { flex-basis: 16px; }
  .hero-blueprint .bp-title-row--latin { font-size: clamp(2.6rem, 14vw, 4.5rem); }
  .hero-blueprint .bp-title-tag { padding-bottom: 0.3rem; }
  .hero-blueprint .bp-callouts { grid-template-columns: 1fr; }
  .hero-blueprint .bp-callout--a,
  .hero-blueprint .bp-callout--b,
  .hero-blueprint .bp-callout--c { grid-column: 1; grid-row: auto; margin-top: 0; }
  .hero-blueprint .bp-lead-text { font-size: 0.94rem; }
  .hero-blueprint .bp-scale-line { font-size: 0.62rem; }
  .hero-blueprint .bp-scale-tick { width: 72px; }
  .hero-blueprint .bp-scale-tick::after { box-shadow: 24px 0 0 var(--bp-ink), 48px 0 0 var(--bp-ink), 72px 0 0 var(--bp-ink); }
}

@media (prefers-reduced-motion: reduce) {
  .hero-blueprint .bp-pulse,
  .hero-blueprint .bp-status-dot { animation: none; }
  .hero-blueprint::after { animation: none; opacity: 1; clip-path: none; }
  .hero-blueprint .bp-title-mark::after { animation: none; transform: scaleX(1); }
}

/* ============================================================
   Blueprint System — Global Override (Phase 1)
   redefines tokens + common chrome. later-wins via CSS cascade.
   ============================================================ */

:root {
  --primary: #0e1a2b;
  --primary-light: #1a2847;
  --primary-dark: #0a1220;
  --accent: #d94a2b;
  --accent-dark: #b63818;
  --bg-base: #f7f5ee;
  --bg-dark: #f7f5ee;
  --bg-darker: #efece1;
  --bg-card: #efece1;
  --bg-card-hover: #e6e2d3;
  --bg-glass: rgba(247, 245, 238, 0.9);
  --text-primary: #0e1a2b;
  --text-secondary: #3a4051;
  --text-muted: #6b6a63;
  --border-color: rgba(14, 26, 43, 0.16);
  --border-hover: rgba(14, 26, 43, 0.32);
  --gradient-primary: linear-gradient(135deg, #0e1a2b, #0e1a2b);
  --gradient-bg: #f7f5ee;
  --shadow-sm: 0 0 0 1px rgba(14, 26, 43, 0.08);
  --shadow-md: 0 0 0 1px rgba(14, 26, 43, 0.10), 0 1px 1px rgba(14, 26, 43, 0.05);
  --shadow-lg: 0 0 0 1px rgba(14, 26, 43, 0.12), 0 2px 2px rgba(14, 26, 43, 0.06), 0 8px 24px rgba(14, 26, 43, 0.08);
  --shadow-glow: 0 0 0 1px rgba(14, 26, 43, 0.16), 0 10px 30px rgba(14, 26, 43, 0.1);
  --radius-sm: 0px;
  --radius-md: 0px;
  --radius-lg: 0px;
  --font-display: 'Cormorant Garamond', 'Zen Old Mincho', 'Noto Serif JP', serif;
  --font-mono: 'Space Mono', 'JetBrains Mono', monospace;
  --font-main: 'Zen Kaku Gothic New', sans-serif;
  --font-jp-serif: 'Zen Old Mincho', 'Noto Serif JP', serif;
  --bp-paper: #f7f5ee;
  --bp-paper-deep: #efece1;
  --bp-ink: #0e1a2b;
  --bp-ink-soft: #1a2847;
  --bp-muted: #6b6a63;
  --bp-accent: #d94a2b;
  --bp-accent-deep: #b63818;
  --bp-line: rgba(14, 26, 43, 0.16);
  --bp-line-soft: rgba(14, 26, 43, 0.08);
}

body {
  background: var(--bp-paper);
  color: var(--text-primary);
  font-feature-settings: "palt" 1;
}
body::before {
  background: radial-gradient(circle at 1px 1px, rgba(14, 26, 43, 0.05) 1px, transparent 0) !important;
  background-size: 28px 28px !important;
  z-index: 0;
}

/* headings default to display serif */
h1, h2, h3, h4, h5 { font-family: var(--font-display); }

/* --- Navbar --- */
.navbar {
  background: rgba(247, 245, 238, 0.84) !important;
  border-bottom: 1px solid transparent;
  box-shadow: none;
}
.navbar.scrolled {
  background: rgba(247, 245, 238, 0.94) !important;
  border-bottom: 1px solid var(--bp-line);
  box-shadow: none !important;
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
}
.navbar-brand {
  font-family: 'Cormorant Garamond', 'Zen Old Mincho', serif;
  font-style: italic;
  font-weight: 600;
  font-variation-settings: 'opsz' 144, 'wght' 600;
  letter-spacing: -0.02em;
  font-size: 1.35rem;
  color: var(--bp-ink) !important;
}
.navbar-brand:hover { color: var(--bp-accent) !important; }
.brand-icon {
  width: 32px; height: 32px;
  border: 1px solid var(--bp-line);
  box-shadow: none;
  background: var(--bp-paper);
}
.navbar-nav .nav-link {
  font-family: 'Space Mono', 'JetBrains Mono', monospace !important;
  font-size: 0.7rem !important;
  letter-spacing: 0.2em !important;
  text-transform: uppercase;
  color: var(--bp-ink-soft) !important;
  background: transparent !important;
  padding: 0.65rem 0.9rem !important;
  border-radius: 0 !important;
  position: relative;
}
.navbar-nav .nav-link i { display: none !important; }
.navbar-nav .nav-link::after {
  content: '';
  position: absolute;
  left: 0.9rem; right: 0.9rem;
  bottom: 0.35rem;
  height: 1px;
  background: var(--bp-ink);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform 0.3s cubic-bezier(0.2, 0.7, 0.2, 1);
}
.navbar-nav .nav-link:hover,
.navbar-nav .nav-link.active {
  color: var(--bp-ink) !important;
  background: transparent !important;
}
.navbar-nav .nav-link:hover::after,
.navbar-nav .nav-link.active::after { transform: scaleX(1); }
.navbar-nav .nav-link.active {
  padding-left: 1.5rem !important;
}
.navbar-nav .nav-link.active::before {
  content: '';
  position: absolute;
  left: 0.65rem;
  top: 50%;
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--bp-accent);
  transform: translateY(-50%);
  box-shadow: 0 0 0 3px rgba(217, 74, 43, 0.18);
}
.navbar-toggler {
  border: 1px solid var(--bp-line);
  border-radius: 0;
  padding: 0.4rem 0.55rem;
}
.navbar-toggler:focus { box-shadow: none; outline: 1px solid var(--bp-ink); }
.navbar-toggler-icon {
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba%2814, 26, 43, 0.8%29' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 8h22M4 15h22M4 22h22'/%3e%3c/svg%3e");
}

/* --- Section headings --- */
.section-kicker {
  font-family: 'Space Mono', 'JetBrains Mono', monospace;
  font-size: 0.72rem;
  letter-spacing: 0.22em;
  color: var(--bp-muted);
  text-transform: uppercase;
  position: relative;
  padding-left: 1.6rem;
  margin-bottom: 0.8rem;
  font-weight: 500;
}
.section-kicker::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.55em;
  width: 1.1rem;
  height: 1px;
  background: var(--bp-accent);
}
.section-title {
  font-family: 'Cormorant Garamond', 'Zen Old Mincho', 'Noto Serif JP', serif;
  font-weight: 500;
  font-variation-settings: 'opsz' 144, 'wght' 500;
  font-size: clamp(1.9rem, 3.8vw, 2.8rem);
  letter-spacing: -0.015em;
  line-height: 1.2;
  color: var(--bp-ink);
  display: block;
  margin-bottom: 0.25rem;
}
.section-title::after,
.section-title.no-line::after { display: none !important; }
.section-note {
  font-family: 'Zen Old Mincho', 'Noto Serif JP', serif;
  color: var(--bp-ink-soft);
  font-size: 0.95rem;
  line-height: 1.9;
  max-width: 48ch;
  letter-spacing: 0.01em;
}
.section-link {
  font-family: 'Space Mono', 'JetBrains Mono', monospace;
  font-size: 0.72rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--bp-ink-soft);
  text-decoration: none;
  border-bottom: 1px solid var(--bp-ink-soft);
  padding-bottom: 0.15rem;
  transition: color 0.3s ease, border-color 0.3s ease, transform 0.3s ease;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
}
.section-link::after {
  content: '→';
  font-family: 'Space Mono', 'JetBrains Mono', monospace;
  transition: transform 0.3s cubic-bezier(0.2, 0.7, 0.2, 1);
}
.section-link:hover {
  color: var(--bp-accent);
  border-color: var(--bp-accent);
}
.section-link:hover::after { transform: translateX(3px); }

/* --- Buttons --- */
.btn-modern {
  font-family: 'Space Mono', 'JetBrains Mono', monospace;
  font-size: 0.78rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  padding: 0.9rem 1.6rem;
  border-radius: 0;
  border: 1px solid var(--bp-ink);
  transition: transform 0.35s cubic-bezier(0.2, 0.7, 0.2, 1),
              background-color 0.35s ease, color 0.35s ease, border-color 0.35s ease;
  min-height: auto;
  position: relative;
  overflow: hidden;
  isolation: isolate;
}
.btn-modern i { margin-right: 0.15rem; }
.btn-gradient {
  background: var(--bp-ink);
  color: var(--bp-paper);
  box-shadow: none;
}
.btn-gradient::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--bp-accent);
  transform: translateY(100%);
  transition: transform 0.45s cubic-bezier(0.2, 0.7, 0.2, 1);
  z-index: -1;
}
.btn-gradient:hover {
  background: var(--bp-ink);
  color: var(--bp-paper);
  transform: translateY(-2px);
  box-shadow: none;
  border-color: var(--bp-ink);
}
.btn-gradient:hover::before { transform: translateY(0); }
.btn-outline-modern {
  background: transparent;
  color: var(--bp-ink);
  border: 1px solid var(--bp-ink);
  box-shadow: none;
}
.btn-outline-modern:hover {
  background: var(--bp-ink);
  color: var(--bp-paper);
  transform: translateY(-2px);
  box-shadow: none;
}

/* --- Tech tags --- */
.tech-tag {
  padding: 0.3rem 0.7rem;
  background: transparent;
  border: 1px solid var(--bp-line);
  border-radius: 0;
  font-family: 'Space Mono', 'JetBrains Mono', monospace;
  font-size: 0.68rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--bp-ink-soft);
  transition: border-color 0.3s ease, color 0.3s ease, background 0.3s ease;
}
.tech-tag:hover {
  border-color: var(--bp-ink);
  color: var(--bp-ink);
  background: var(--bp-paper-deep);
}

/* --- Skill badges --- */
.skill-badge,
.skill-badge.accent,
.skill-badge.green {
  background: var(--bp-paper);
  border: 1px solid var(--bp-line);
  border-radius: 0;
  color: var(--bp-ink-soft);
  font-family: 'Space Mono', 'JetBrains Mono', monospace;
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 0.45rem 0.9rem;
  transition: border-color 0.3s ease, color 0.3s ease, background 0.3s ease, transform 0.3s ease;
}
.skill-badge i { color: var(--bp-accent); transition: color 0.3s ease; }
.skill-badge:hover {
  background: var(--bp-ink);
  color: var(--bp-paper);
  border-color: var(--bp-ink);
  transform: translateY(-2px);
}
.skill-badge:hover i { color: var(--bp-paper); }

/* --- Footer (dimension-bar style) --- */
.site-footer {
  background: var(--bp-paper);
  border-top: 1px solid var(--bp-line);
  padding: 3rem 0 1.75rem;
  margin-top: 5rem;
  position: relative;
}
.site-footer::before {
  content: 'DWG  termnix-it / footer   \2014   SCALE 1:1   \2014   REV 03';
  position: absolute;
  top: -0.65rem;
  left: 50%;
  transform: translateX(-50%);
  background: var(--bp-paper);
  padding: 0 1rem;
  font-family: 'Space Mono', 'JetBrains Mono', monospace;
  font-size: 0.6rem;
  letter-spacing: 0.26em;
  color: var(--bp-muted);
  text-transform: uppercase;
  white-space: nowrap;
}
.site-footer .container { position: relative; }
.footer-brand {
  font-family: 'Cormorant Garamond', 'Zen Old Mincho', serif;
  font-style: italic;
  font-weight: 600;
  font-variation-settings: 'opsz' 144, 'wght' 620;
  color: var(--bp-ink);
  font-size: 1.25rem;
}
.footer-brand-icon {
  border: 1px solid var(--bp-line);
}
.footer-text {
  font-family: 'Zen Old Mincho', 'Noto Serif JP', serif;
  color: var(--bp-ink-soft);
  font-size: 0.88rem;
  letter-spacing: 0.02em;
}
.footer-copy {
  font-family: 'Space Mono', 'JetBrains Mono', monospace;
  font-size: 0.62rem;
  letter-spacing: 0.22em;
  color: var(--bp-muted);
  text-transform: uppercase;
  margin-top: 0.5rem;
}
.footer-social {
  gap: 0.6rem !important;
  margin-bottom: 0.35rem;
}
.footer-social a {
  width: 34px;
  height: 34px;
  color: var(--bp-ink-soft);
  background: transparent;
  border: 1px solid var(--bp-line);
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: color 0.3s ease, border-color 0.3s ease, background 0.3s ease;
}
.footer-social a:hover {
  color: var(--bp-paper);
  background: var(--bp-ink);
  border-color: var(--bp-ink);
}

/* --- Links baseline --- */
a { color: var(--bp-ink-soft); }
a:hover { color: var(--bp-accent); }

/* ============================================================
   Blueprint System — Home page body (Phase 2)
   index.html: Overview / Selected Work / Career / Skills / Publishing
   ============================================================ */

/* --- Spacing baseline --- */
.home-main { gap: 5rem; }
.section-block { padding: 5rem 0 4rem; }
.section-heading-split {
  align-items: flex-end;
  gap: 2rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--bp-line);
  margin-bottom: 2rem;
}

/* --- Overview (今の強み) --- */
.editorial-overview-grid {
  gap: 1.5rem;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}
.editorial-overview-item {
  position: relative;
  padding: 2.5rem 1.5rem 1.75rem;
  background: var(--bp-paper-deep);
  border: 1px solid var(--bp-line);
  transition: border-color 0.4s ease, transform 0.4s ease;
}
.editorial-overview-item::before {
  content: '';
  position: absolute;
  top: 0;
  left: 1.5rem;
  width: 2rem;
  height: 1px;
  background: var(--bp-accent);
  transition: width 0.45s cubic-bezier(0.2, 0.7, 0.2, 1);
}
.editorial-overview-item:hover {
  border-color: var(--bp-ink);
  transform: translateY(-3px);
}
.editorial-overview-item:hover::before { width: 3.5rem; }
.editorial-overview-item .overview-index {
  display: block;
  font-family: 'Cormorant Garamond', 'Zen Old Mincho', serif;
  font-style: italic;
  font-variation-settings: 'opsz' 144, 'wght' 500;
  font-size: 2.8rem;
  line-height: 1;
  color: var(--bp-accent);
  letter-spacing: -0.02em;
  margin-bottom: 1rem;
}
.editorial-overview-item h3 {
  font-family: 'Zen Old Mincho', 'Noto Serif JP', serif;
  font-weight: 700;
  font-size: 1.3rem;
  color: var(--bp-ink);
  line-height: 1.5;
  letter-spacing: 0.01em;
  margin: 0 0 0.85rem;
}
.editorial-overview-item p {
  font-family: 'Zen Old Mincho', 'Noto Serif JP', serif;
  color: var(--bp-ink-soft);
  font-size: 0.92rem;
  line-height: 1.95;
  letter-spacing: 0.01em;
  margin: 0;
}

/* --- Selected Work (project sheet) --- */
.project-spotlight {
  padding: 2rem 1.75rem;
  border: 1px solid var(--bp-line);
  background: var(--bp-paper);
  grid-template-columns: minmax(0, 1.05fr) minmax(320px, 0.95fr);
  gap: 2rem;
  position: relative;
}
.project-spotlight::before {
  content: 'PROJECT \00B7 01  \2014  HOME-SERVER / FLASK';
  position: absolute;
  top: -0.55rem;
  left: 1.25rem;
  padding: 0 0.65rem;
  background: var(--bp-paper);
  font-family: 'Space Mono', 'JetBrains Mono', monospace;
  font-size: 0.62rem;
  letter-spacing: 0.26em;
  color: var(--bp-muted);
  text-transform: uppercase;
  white-space: nowrap;
}
.project-spotlight-image {
  border-radius: 0;
  border: 1px solid var(--bp-line);
  box-shadow: none;
}
.project-spotlight-image:hover {
  box-shadow: none;
  transform: translateY(-2px);
  border-color: var(--bp-ink);
}
.project-spotlight-copy { gap: 1.1rem; }
.project-spotlight-copy .feature-project-label {
  font-family: 'Space Mono', 'JetBrains Mono', monospace;
  font-size: 0.68rem;
  letter-spacing: 0.22em;
  color: var(--bp-muted);
  text-transform: uppercase;
  padding-left: 1.4rem;
  position: relative;
  margin: 0;
}
.project-spotlight-copy .feature-project-label::before {
  content: '';
  position: absolute;
  left: 0; top: 0.55em;
  width: 1rem; height: 1px;
  background: var(--bp-accent);
}
.project-spotlight-copy h3 {
  font-family: 'Zen Old Mincho', 'Noto Serif JP', serif;
  font-weight: 700;
  font-size: clamp(1.55rem, 2.5vw, 2rem);
  color: var(--bp-ink);
  letter-spacing: 0.01em;
  line-height: 1.3;
  margin: 0;
}
.project-spotlight-lead {
  font-family: 'Zen Old Mincho', 'Noto Serif JP', serif;
  font-size: 0.95rem;
  line-height: 1.95;
  color: var(--bp-ink-soft);
  border-left: 2px solid var(--bp-ink);
  padding-left: 1rem;
  margin: 0;
}
.project-spotlight-points {
  border-top: 1px dashed var(--bp-line);
  padding: 1rem 0 0;
  gap: 0.6rem;
}
.project-spotlight-points p {
  font-family: 'Zen Old Mincho', 'Noto Serif JP', serif;
  font-size: 0.9rem;
  color: var(--bp-ink-soft);
  line-height: 1.85;
  position: relative;
  padding-left: 1.1rem;
  margin: 0;
}
.project-spotlight-points p::before {
  content: '\2014';
  position: absolute;
  left: 0;
  top: 0;
  color: var(--bp-accent);
  font-family: 'Space Mono', 'JetBrains Mono', monospace;
}
.project-spotlight-actions { margin-top: 0.25rem; }

/* --- Career section --- */
.profile-columns-section { padding-top: 1rem; }
.profile-columns {
  grid-template-columns: minmax(0, 1.2fr) minmax(280px, 340px);
  gap: 3rem;
  align-items: start;
}
.profile-column-lead {
  font-family: 'Zen Old Mincho', 'Noto Serif JP', serif;
  color: var(--bp-ink-soft);
  font-size: 0.98rem;
  line-height: 1.95;
  max-width: 46rem;
  padding-left: 1.1rem;
  border-left: 2px solid var(--bp-ink);
  margin: 0 0 2rem;
}

/* Timeline override — blueprint dimension line */
.editorial-timeline {
  border-top: none;
  margin-top: 0;
  padding: 0 0 0 2.5rem;
  position: relative;
}
.editorial-timeline::before {
  content: '';
  position: absolute;
  left: 0.5rem;
  top: 0.3rem;
  bottom: 0.3rem;
  width: 1px;
  background: var(--bp-line);
  background-image: linear-gradient(180deg, var(--bp-line), var(--bp-line));
}
.editorial-timeline .timeline-item {
  position: relative;
  padding: 0 0 1.75rem 0;
}
.editorial-timeline .timeline-item:last-child { padding-bottom: 0; }
.editorial-timeline .timeline-item::before {
  content: '';
  position: absolute;
  left: -2.5rem;
  top: 0.55em;
  width: 1.15rem;
  height: 1px;
  background: var(--bp-ink);
  border: none;
  border-radius: 0;
  box-shadow: none;
}
.editorial-timeline .timeline-item::after {
  content: '';
  position: absolute;
  left: -2.1rem;
  top: calc(0.55em - 2px);
  width: 5px;
  height: 5px;
  background: var(--bp-accent);
  border-radius: 50%;
}
.editorial-timeline .timeline-date {
  font-family: 'Space Mono', 'JetBrains Mono', monospace;
  font-size: 0.68rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--bp-muted);
  margin-bottom: 0.55rem;
  font-weight: 500;
}
.editorial-timeline .timeline-content h3 {
  font-family: 'Zen Old Mincho', 'Noto Serif JP', serif;
  font-weight: 700;
  font-size: 1.15rem;
  color: var(--bp-ink);
  line-height: 1.45;
  margin: 0 0 0.5rem;
  letter-spacing: 0.01em;
}
.editorial-timeline .timeline-content p {
  font-family: 'Zen Old Mincho', 'Noto Serif JP', serif;
  color: var(--bp-ink-soft);
  font-size: 0.9rem;
  line-height: 1.9;
  margin: 0 0 0.9rem;
}
.editorial-timeline .timeline-content .project-tech {
  gap: 0.45rem;
}

/* Side notes (Credentials) — flattened */
.profile-column-side { gap: 1.25rem; }
.side-note-block {
  padding: 0 !important;
  border: none !important;
  background: transparent !important;
  position: relative;
}
.side-note-block::before { content: none !important; }
.side-note-block .section-kicker {
  margin: 0 0 0.55rem;
  padding-left: 0;
}
.side-note-block h3 {
  font-family: 'Zen Old Mincho', 'Noto Serif JP', serif;
  font-style: normal;
  font-weight: 700;
  font-size: 1.6rem;
  color: var(--bp-ink);
  letter-spacing: 0.02em;
  margin: 0 0 1rem;
}
.side-note-block p {
  font-family: 'Zen Old Mincho', 'Noto Serif JP', serif;
  color: var(--bp-ink-soft);
  font-size: 0.88rem;
  line-height: 1.9;
  margin: 0;
}

/* Cert list — spec rows */
.editorial-cert-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 0.1rem;
}
.editorial-cert-list li {
  font-family: 'Space Mono', 'JetBrains Mono', monospace;
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  color: var(--bp-ink-soft);
  display: flex;
  align-items: center;
  gap: 0.7rem;
  padding: 0.55rem 0;
  border-bottom: 1px dashed var(--bp-line);
}
.editorial-cert-list li:last-child { border-bottom: none; }
.editorial-cert-list li i {
  color: var(--bp-accent);
  font-size: 0.78rem;
  width: 1rem;
}

/* --- Skills --- */
.editorial-skill-grid {
  gap: 1.75rem;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  padding-top: 0.5rem;
}
.editorial-skill-block {
  position: relative;
  padding: 2rem 1.6rem 1.6rem;
  border: 1px solid var(--bp-line);
  background: var(--bp-paper);
  transition: border-color 0.4s ease;
  gap: 0.8rem;
}
.editorial-skill-block::before {
  content: '';
  position: absolute;
  top: 0;
  left: 1.4rem;
  width: 2.25rem;
  height: 1px;
  background: var(--bp-accent);
}
.editorial-skill-block:hover { border-color: var(--bp-ink); }
.editorial-skill-block h3 {
  font-family: 'Cormorant Garamond', 'Zen Old Mincho', serif;
  font-style: italic;
  font-variation-settings: 'opsz' 144, 'wght' 560;
  font-weight: 560;
  font-size: 1.45rem;
  color: var(--bp-ink);
  letter-spacing: -0.01em;
  margin: 0 0 0.4rem;
}
.editorial-skill-block p {
  font-family: 'Zen Old Mincho', 'Noto Serif JP', serif;
  color: var(--bp-ink-soft);
  font-size: 0.9rem;
  line-height: 1.95;
  margin: 0 0 0.5rem;
  padding-bottom: 0.9rem;
  border-bottom: 1px dashed var(--bp-line);
}

/* --- Publishing --- */
.editorial-publishing-grid {
  gap: 2.5rem;
  padding-top: 0.5rem;
}
.editorial-publishing-card {
  padding: 1.5rem 0 0;
  border-top: 1px solid var(--bp-ink);
  position: relative;
  background: transparent;
}
.editorial-publishing-card::before {
  content: '';
  position: absolute;
  top: -2px;
  left: 0;
  width: 2.75rem;
  height: 3px;
  background: var(--bp-accent);
}
.editorial-publishing-card h3 {
  font-family: 'Cormorant Garamond', 'Zen Old Mincho', serif;
  font-style: italic;
  font-variation-settings: 'opsz' 144, 'wght' 560;
  font-weight: 560;
  font-size: 1.55rem;
  color: var(--bp-ink);
  letter-spacing: -0.01em;
  margin: 0 0 0.75rem;
}
.editorial-publishing-card p {
  font-family: 'Zen Old Mincho', 'Noto Serif JP', serif;
  color: var(--bp-ink-soft);
  font-size: 0.92rem;
  line-height: 1.95;
  margin: 0 0 1rem;
}
.publishing-actions { gap: 0.75rem; }

/* Qiita list — thin spec rows */
.qiita-list {
  list-style: none;
  padding: 0;
  margin: 1rem 0 0;
  display: flex;
  flex-direction: column;
  gap: 0;
}
.qiita-list li {
  padding: 0.85rem 0;
  border-top: 1px dashed var(--bp-line);
}
.qiita-list li:first-child { border-top: none; padding-top: 0.25rem; }
.qiita-list li:last-child { border-bottom: 1px dashed var(--bp-line); }
.qiita-list li a {
  font-family: 'Zen Old Mincho', 'Noto Serif JP', serif;
  font-size: 0.92rem;
  color: var(--bp-ink);
  text-decoration: none;
  line-height: 1.75;
  display: flex;
  gap: 0.6rem;
  align-items: flex-start;
  transition: color 0.3s ease;
}
.qiita-list li a:hover { color: var(--bp-accent); }
.qiita-list li a i,
.qiita-list li i {
  color: var(--bp-accent);
  font-size: 0.78rem;
  flex-shrink: 0;
  margin-top: 0.4rem;
}
.qiita-status {
  font-family: 'Space Mono', 'JetBrains Mono', monospace;
  font-size: 0.7rem;
  letter-spacing: 0.22em;
  color: var(--bp-muted);
  text-transform: uppercase;
  padding: 0.75rem 0;
}

/* --- Responsive: home body --- */
@media (max-width: 960px) {
  .editorial-overview-grid,
  .editorial-skill-grid { grid-template-columns: 1fr; }
  .project-spotlight,
  .profile-columns,
  .editorial-publishing-grid { grid-template-columns: 1fr !important; gap: 2rem; }
  .project-spotlight::before { white-space: normal; max-width: 80%; }
  .section-block { padding: 3.5rem 0 3rem; }
  .home-main { gap: 3.5rem; }
}

/* ============================================================
   Blueprint System — Sub pages (Phase 3)
   portfolio.html / contact.html / ToolBox.html / Diagram.html
   ============================================================ */

/* --- Page header --- */
.page-header {
  background: var(--bp-paper) !important;
  background-image:
    radial-gradient(circle, rgba(14, 26, 43, 0.08) 1px, transparent 1px) !important;
  background-size: 28px 28px !important;
  border-top: none !important;
  border-bottom: 1px solid var(--bp-line) !important;
  color: var(--bp-ink) !important;
  padding: 8.5rem 0 3.5rem !important;
  position: relative;
  overflow: hidden;
}
.page-header::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, var(--bp-paper) 0%, rgba(247, 245, 238, 0.55) 60%, var(--bp-paper) 100%);
  pointer-events: none;
  z-index: 0;
}
.page-header::after {
  content: none;
}
.page-header .container {
  position: relative;
  z-index: 1;
  border-left: 1px solid var(--bp-line);
  padding-left: 2rem !important;
  text-align: left !important;
}
.page-header h1 {
  font-family: 'Zen Old Mincho', 'Noto Serif JP', serif !important;
  font-weight: 800 !important;
  font-size: clamp(2.4rem, 4.6vw, 3.6rem) !important;
  color: var(--bp-ink) !important;
  letter-spacing: 0.02em !important;
  line-height: 1.18 !important;
  margin-bottom: 0.8rem !important;
  position: relative;
  display: inline-block;
  padding-left: 1.5rem;
  text-align: left !important;
}
.page-header h1::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.65em;
  width: 1rem;
  height: 2px;
  background: var(--bp-accent);
}
.page-header h1 i {
  display: none !important;
}
.page-header p {
  font-family: 'Space Mono', 'JetBrains Mono', monospace !important;
  font-size: 0.78rem !important;
  letter-spacing: 0.28em !important;
  text-transform: uppercase;
  color: var(--bp-muted) !important;
  padding-left: 1.5rem;
  margin-top: 0.5rem !important;
  text-align: left !important;
}

/* --- Breadcrumb --- */
.breadcrumb {
  --bs-breadcrumb-divider: none;
  --bs-breadcrumb-item-padding-x: 0;
  font-family: 'Space Mono', 'JetBrains Mono', monospace !important;
  font-size: 0.74rem !important;
  letter-spacing: 0.18em !important;
  text-transform: uppercase;
  padding: 0.75rem 0 !important;
  border-bottom: 1px dashed var(--bp-line) !important;
  margin-bottom: 2.5rem !important;
  background: transparent !important;
}
.breadcrumb-item + .breadcrumb-item {
  padding-left: 0 !important;
}
.breadcrumb-item a {
  color: var(--bp-muted) !important;
  text-decoration: none !important;
  transition: color 0.2s ease;
}
.breadcrumb-item a:hover { color: var(--bp-accent) !important; }
.breadcrumb-item.active { color: var(--bp-ink) !important; }
.breadcrumb-item + .breadcrumb-item::before {
  content: '/' !important;
  color: var(--bp-muted) !important;
  padding: 0 0.9rem !important;
  opacity: 0.7;
  float: none !important;
}
.breadcrumb-item i { display: none !important; }

/* --- Project section (portfolio / toolbox) --- */
.project-card {
  background: transparent !important;
  background-image: none !important;
  border: none !important;
  border-top: 1px solid var(--bp-ink) !important;
  border-radius: 0 !important;
  padding: 2.5rem 0 3rem !important;
  margin-bottom: 0 !important;
  box-shadow: none !important;
  position: relative;
}
.project-card::before { content: none !important; }
.project-card::after { content: none !important; }
.project-card .project-title {
  font-family: 'Zen Old Mincho', 'Noto Serif JP', serif !important;
  font-weight: 700 !important;
  font-size: clamp(1.4rem, 2.2vw, 1.85rem) !important;
  color: var(--bp-ink) !important;
  letter-spacing: 0.02em !important;
  line-height: 1.35 !important;
  padding-bottom: 1.2rem !important;
  margin-bottom: 1.4rem !important;
  border-bottom: 1px solid var(--bp-line) !important;
  display: flex !important;
  align-items: baseline !important;
  gap: 1.25rem !important;
}
.project-card .project-number {
  font-family: 'Cormorant Garamond', serif !important;
  font-style: italic !important;
  font-variation-settings: 'opsz' 144, 'wght' 560, 'SOFT' 100 !important;
  font-size: 2.5rem !important;
  color: var(--bp-accent) !important;
  background: transparent !important;
  width: auto !important;
  height: auto !important;
  min-width: 0 !important;
  padding: 0 !important;
  line-height: 1 !important;
  border: none !important;
  border-radius: 0 !important;
  box-shadow: none !important;
  display: inline-block !important;
}
.project-card .project-desc {
  font-family: 'Zen Kaku Gothic New', sans-serif !important;
  font-size: 0.96rem !important;
  color: var(--bp-ink-soft) !important;
  line-height: 1.9 !important;
  padding-left: 1rem !important;
  border-left: 2px solid var(--bp-ink) !important;
  margin-bottom: 1.5rem !important;
}
.project-card .project-desc-tight {
  border-left: 2px solid var(--bp-muted) !important;
  color: var(--bp-muted) !important;
  font-size: 0.9rem !important;
}
.project-card .project-tech {
  margin-bottom: 1.75rem !important;
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
}

/* --- Sub-cards (Bootstrap .card inside project) --- */
.project-card .card {
  background: var(--bp-paper-deep) !important;
  border: 1px solid var(--bp-line) !important;
  border-radius: 0 !important;
  box-shadow: none !important;
  transition: border-color 0.3s ease;
}
.project-card .card:hover { border-color: var(--bp-ink) !important; }
.project-card .card .card-body { padding: 1.35rem 1.5rem !important; }
.project-card .card .card-title {
  font-family: 'Space Mono', 'JetBrains Mono', monospace !important;
  font-size: 0.7rem !important;
  letter-spacing: 0.24em !important;
  text-transform: uppercase !important;
  color: var(--bp-muted) !important;
  margin-bottom: 0.85rem !important;
  display: flex;
  align-items: center;
  gap: 0.4rem;
}
.project-card .card .card-title i {
  color: var(--bp-accent) !important;
  font-size: 0.85rem !important;
}
.project-card .card .card-text {
  font-size: 0.9rem !important;
  color: var(--bp-ink-soft) !important;
  line-height: 1.75 !important;
  margin-bottom: 1rem !important;
}

/* --- Project subsection title --- */
.project-subsection-title {
  font-family: 'Space Mono', 'JetBrains Mono', monospace !important;
  font-size: 0.72rem !important;
  letter-spacing: 0.3em !important;
  text-transform: uppercase !important;
  color: var(--bp-muted) !important;
  margin: 2.25rem 0 1.1rem !important;
  padding-top: 1.25rem !important;
  border-top: 1px dashed var(--bp-line) !important;
  display: flex;
  align-items: center;
  gap: 0.6rem;
}
.project-subsection-title i {
  color: var(--bp-accent) !important;
  font-size: 0.85rem !important;
}

/* --- Status badges --- */
.status-badge {
  font-family: 'Space Mono', 'JetBrains Mono', monospace !important;
  font-size: 0.66rem !important;
  letter-spacing: 0.22em !important;
  text-transform: uppercase !important;
  padding: 0.35rem 0.7rem !important;
  border-radius: 0 !important;
  background: transparent !important;
  border: 1px solid var(--bp-line) !important;
  color: var(--bp-muted) !important;
  display: inline-flex !important;
  align-items: center !important;
  gap: 0.4rem !important;
  box-shadow: none !important;
}
.status-badge.status-wip {
  color: var(--bp-accent) !important;
  border-color: var(--bp-accent) !important;
}
.status-badge.status-wip i { color: var(--bp-accent) !important; }
.status-badge.status-planned {
  color: var(--bp-muted) !important;
  border-color: var(--bp-line) !important;
}
.status-badge.status-done {
  color: var(--bp-ink) !important;
  border-color: var(--bp-ink) !important;
}
.status-badge.status-done i { color: var(--bp-accent) !important; }

/* --- Diagrams --- */
.project-card .diagram,
.project-card img.diagram {
  border: 1px solid var(--bp-line) !important;
  border-radius: 0 !important;
  box-shadow: none !important;
  background: var(--bp-paper-deep) !important;
  padding: 0.5rem;
  max-width: 100%;
}
.diagram-hint {
  display: block;
  text-align: center;
  font-family: 'Space Mono', 'JetBrains Mono', monospace !important;
  font-size: 0.68rem !important;
  letter-spacing: 0.24em !important;
  text-transform: uppercase !important;
  color: var(--bp-muted) !important;
  margin-top: 0.85rem !important;
}
.diagram-hint i { color: var(--bp-accent) !important; }

/* --- Contact sections --- */
.contact-info {
  display: grid !important;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 3rem !important;
  margin: 0 0 3rem !important;
}
.contact-card {
  background: transparent !important;
  border: none !important;
  border-top: 1px solid var(--bp-ink) !important;
  border-radius: 0 !important;
  padding: 2rem 0 0 !important;
  box-shadow: none !important;
  position: relative;
  text-align: left !important;
}
.contact-card::before { content: none !important; }
.contact-card::after { content: none !important; }
.contact-card .contact-icon {
  width: auto !important;
  height: auto !important;
  background: transparent !important;
  color: var(--bp-ink) !important;
  margin: 0 0 1rem !important;
  font-size: 1.75rem !important;
  box-shadow: none !important;
  border-radius: 0 !important;
  display: block !important;
}
.contact-card .contact-icon i { color: var(--bp-ink) !important; }
.contact-card h4 {
  font-family: 'Cormorant Garamond', serif !important;
  font-style: italic !important;
  font-variation-settings: 'opsz' 144, 'wght' 560, 'SOFT' 100 !important;
  font-size: 1.6rem !important;
  color: var(--bp-ink) !important;
  margin-bottom: 0.4rem !important;
  letter-spacing: 0 !important;
}
.contact-card p {
  font-size: 0.88rem !important;
  color: var(--bp-ink-soft) !important;
  line-height: 1.75 !important;
  margin-bottom: 1.4rem !important;
}
.contact-card a {
  display: inline-flex !important;
  align-items: center !important;
  gap: 0.5rem !important;
  font-family: 'Space Mono', 'JetBrains Mono', monospace !important;
  font-size: 0.76rem !important;
  letter-spacing: 0.22em !important;
  text-transform: uppercase !important;
  color: var(--bp-ink) !important;
  background: transparent !important;
  border: 1px solid var(--bp-ink) !important;
  border-radius: 0 !important;
  padding: 0.65rem 1.1rem !important;
  text-decoration: none !important;
  transition: all 0.25s ease;
}
.contact-card a:hover {
  background: var(--bp-ink) !important;
  color: var(--bp-paper) !important;
}
.contact-card a i { font-size: 0.7rem !important; }

/* --- Glass card / placeholder (flattened) --- */
.glass-card,
.placeholder-panel {
  background: transparent !important;
  border: none !important;
  border-top: 1px dashed var(--bp-line) !important;
  border-radius: 0 !important;
  box-shadow: none !important;
  backdrop-filter: none !important;
  -webkit-backdrop-filter: none !important;
  padding: 1.5rem 0 !important;
  position: relative;
}
.glass-card::before,
.placeholder-panel::before { content: none !important; }
.placeholder-note {
  font-family: 'Zen Old Mincho', 'Noto Serif JP', serif !important;
  font-size: 0.98rem !important;
  color: var(--bp-ink-soft) !important;
  margin: 0 !important;
  line-height: 1.75 !important;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.placeholder-note i { color: var(--bp-accent) !important; }
.placeholder-panel-spaced { margin-top: 2rem !important; }

/* --- Back link --- */
.back-link {
  display: inline-flex !important;
  align-items: center !important;
  gap: 0.55rem !important;
  font-family: 'Space Mono', 'JetBrains Mono', monospace !important;
  font-size: 0.76rem !important;
  letter-spacing: 0.22em !important;
  text-transform: uppercase !important;
  color: var(--bp-ink) !important;
  background: transparent !important;
  border: 1px solid var(--bp-ink) !important;
  border-radius: 0 !important;
  padding: 0.7rem 1.25rem !important;
  text-decoration: none !important;
  transition: all 0.25s ease !important;
  box-shadow: none !important;
}
.back-link::before {
  content: '← ';
  font-family: 'Space Mono', 'JetBrains Mono', monospace;
}
.back-link i { display: none !important; }
.back-link:hover {
  background: var(--bp-ink) !important;
  color: var(--bp-paper) !important;
  transform: translateX(-4px);
}

/* --- Gallery (Diagram page) — flattened --- */
.gallery-card {
  background: transparent !important;
  border: none !important;
  border-top: 1px solid var(--bp-ink) !important;
  border-radius: 0 !important;
  box-shadow: none !important;
  overflow: visible !important;
  position: relative;
  padding-top: 1.75rem !important;
}
.gallery-card::before { content: none !important; }
.gallery-card img {
  border: 1px solid var(--bp-line) !important;
  background: var(--bp-paper-deep);
  padding: 0.5rem;
  width: 100%;
  height: auto;
}
.gallery-card-body { padding: 1.5rem 0 0 !important; }
.gallery-card-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 1rem;
  padding-bottom: 1rem;
  margin-bottom: 1rem;
  border-bottom: 1px dashed var(--bp-line);
}
.gallery-card-title {
  font-family: 'Zen Old Mincho', 'Noto Serif JP', serif !important;
  font-weight: 700 !important;
  font-size: 1.35rem !important;
  color: var(--bp-ink) !important;
  letter-spacing: 0.02em !important;
  line-height: 1.4 !important;
  margin: 0 !important;
}
.gallery-card-body p {
  font-size: 0.92rem !important;
  color: var(--bp-ink-soft) !important;
  line-height: 1.85 !important;
  margin-bottom: 1.15rem !important;
}
.gallery-card-tech {
  margin: 0.5rem 0 1.1rem !important;
  padding-top: 0 !important;
  border-top: none !important;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}
.gallery-card-meta {
  font-family: 'Space Mono', 'JetBrains Mono', monospace !important;
  font-size: 0.7rem !important;
  letter-spacing: 0.22em !important;
  text-transform: uppercase !important;
  color: var(--bp-muted) !important;
  margin: 0 !important;
  padding-top: 0.85rem !important;
  border-top: 1px dashed var(--bp-line) !important;
}
.gallery-card-meta i { color: var(--bp-accent) !important; }

/* --- Gallery placeholder (flattened) --- */
.gallery-placeholder-card {
  min-height: 220px;
  display: flex !important;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  text-align: center;
  padding: 2rem 1rem !important;
  background: transparent !important;
  border: none !important;
  border-top: 1px dashed var(--bp-line) !important;
  border-radius: 0 !important;
  position: relative;
}
.gallery-placeholder-card::before { content: none !important; }
.gallery-placeholder-icon {
  font-size: 2.2rem !important;
  color: var(--bp-muted) !important;
  opacity: 0.55;
}
.gallery-placeholder-text {
  font-family: 'Zen Old Mincho', 'Noto Serif JP', serif !important;
  font-size: 1rem !important;
  color: var(--bp-ink-soft) !important;
  margin: 0 !important;
  letter-spacing: 0.05em;
}

/* --- Responsive: sub pages --- */
@media (max-width: 820px) {
  .page-header { padding: 7rem 0 2.5rem !important; }
  .page-header .container { border-left: none; padding-left: 15px !important; }
  .page-header h1 { font-size: clamp(1.9rem, 6vw, 2.4rem) !important; }
  .contact-info { grid-template-columns: 1fr !important; }
  .project-card { padding: 2.25rem 1.5rem 2rem !important; }
  .project-card::before { left: 1rem; }
  .project-card .project-title { flex-direction: row; gap: 0.85rem !important; font-size: 1.3rem !important; }
  .project-card .project-number { font-size: 2rem !important; }
  .gallery-card-body { padding: 1.35rem 1.35rem 1.5rem !important; }
}

/* ============================================================
   Career Document Layout (index.html redesign)
   - Namespace: .cdoc / .cdoc-*
   - Tokens only: --primary, --accent, --text-*, --border-color,
     --shadow-sm/md, --radius-*, --font-display, --font-mono
   ============================================================ */

/* Page-scoped navbar override (index.html only) */
body.cdoc-page {
  background: #ffffff;
}
body.cdoc-page .navbar,
body.cdoc-page .navbar.scrolled {
  background: #0b1d4d !important;
  backdrop-filter: none !important;
  -webkit-backdrop-filter: none !important;
  border-bottom: 1px solid #142a66 !important;
  box-shadow: 0 1px 0 rgba(8, 145, 178, 0.18) !important;
  padding: 0.4rem 0 !important;
}
body.cdoc-page .navbar-brand { font-size: 1.05rem !important; }
body.cdoc-page .brand-icon {
  width: 28px !important;
  height: 28px !important;
}
body.cdoc-page .navbar-nav .nav-link {
  padding-top: 0.35rem !important;
  padding-bottom: 0.35rem !important;
}
body.cdoc-page .navbar-brand,
body.cdoc-page .navbar-brand:hover {
  color: #f8fafc !important;
}
body.cdoc-page .brand-icon {
  border-color: #334155 !important;
  background: #fff !important;
}
body.cdoc-page .navbar-nav .nav-link {
  color: #cbd5e1 !important;
}
body.cdoc-page .navbar-nav .nav-link:hover,
body.cdoc-page .navbar-nav .nav-link.active {
  color: #67e8f9 !important;
  background: rgba(103, 232, 249, 0.08) !important;
}
body.cdoc-page .navbar-nav .nav-link::after {
  background: #67e8f9 !important;
}
body.cdoc-page .navbar-toggler {
  border-color: #334155 !important;
}
body.cdoc-page .navbar-social .nav-link {
  font-size: 1rem !important;
  padding: 0.45rem 0.75rem !important;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}
body.cdoc-page .navbar-social .nav-link i { display: inline-block !important; }
body.cdoc-page .navbar-social .nav-link::after { content: none !important; }
body.cdoc-page .navbar-collapse {
  flex-grow: 1;
}
body.cdoc-page .navbar > .container {
  max-width: none !important;
  width: 100% !important;
  padding-left: 1.75rem !important;
  padding-right: 1.75rem !important;
}
@media (max-width: 767px) {
  body.cdoc-page .navbar > .container {
    padding-left: 1rem !important;
    padding-right: 1rem !important;
  }
}
@media (max-width: 991px) {
  body.cdoc-page .navbar-nav.mx-auto { margin: 0 !important; }
  body.cdoc-page .navbar-social { margin-top: 0.25rem; }
}
body.cdoc-page .navbar-toggler-icon {
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba(203,213,225,0.9)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
}

.cdoc {
  /* Scope-override of design tokens so .cdoc-* descendants pick up
     the image's navy + cyan + green palette without affecting other pages. */
  --primary: #1e40af;
  --primary-light: #3b82f6;
  --primary-dark: #1e3a8a;
  --accent: #0891b2;
  --accent-dark: #0e7490;
  --border-color: #e2e8f0;
  --border-hover: #cbd5e1;
  /* Auxiliary cdoc-only tokens */
  --cdoc-green: #10b981;
  --cdoc-green-dark: #047857;
  --cdoc-amber: #f59e0b;
  --cdoc-amber-dark: #b45309;
  --cdoc-surface-soft: #f8fafc;
  --cdoc-surface-sidebar: #eef2f7;
  --cdoc-surface-tag: #f1f5f9;
  --cdoc-bg: #ffffff;
  --cdoc-text-body: #262626;
  --cdoc-nav-h: 3.5rem;
  background: var(--cdoc-bg);
  padding: var(--cdoc-nav-h) 0 0;
  color: var(--text-primary);
}

/* --- Hero (lives inside main column) --- */
.cdoc-hero {
  background: transparent;
  border: 0;
  border-bottom: 1px solid var(--border-color);
  border-radius: 0;
  box-shadow: none;
  padding: 0.25rem 0 1.5rem;
  margin-bottom: 0.5rem;
  position: relative;
}
.cdoc-pathbar {
  background: #ffffff;
  border-bottom: 1px solid var(--border-color);
  margin: 0;
  padding: 0;
  display: flex;
  align-items: center;
  min-height: 1.7rem;
}
.cdoc-pathbar-inner {
  display: block;
  width: 100%;
  padding: 0.25rem 1.75rem 0;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  line-height: 1;
  letter-spacing: 0.04em;
  color: var(--text-muted);
}
.cdoc-hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  color: var(--accent-dark);
  margin: 0 0 0.55rem;
  letter-spacing: 0.04em;
}
.cdoc-hero-eyebrow::before {
  content: '';
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #10b981;
  box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.18);
}
.cdoc-hero-title {
  font-family: var(--font-display);
  font-size: clamp(1.3rem, 2.4vw, 1.7rem);
  font-weight: 700;
  line-height: 1.5;
  margin: 0 0 0.7rem;
  color: var(--text-primary);
}
.cdoc-hero-title .cdoc-hero-title-mark {
  background: linear-gradient(180deg, transparent 65%, rgba(8, 145, 178, 0.18) 65%);
  padding: 0 0.1em;
}
.cdoc-hero-lead {
  font-size: 0.88rem;
  line-height: 1.8;
  color: var(--text-secondary);
  margin: 0 0 0.95rem;
}
.cdoc-hero-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}
.cdoc-chip {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.35rem 0.8rem;
  border-radius: 999px;
  border: 1px solid var(--border-color);
  background: #ffffff;
  font-size: 0.78rem;
  font-family: var(--font-mono);
  color: var(--text-secondary);
}
.cdoc-chip i { color: var(--accent); font-size: 0.85rem; }
.cdoc-chip--solid {
  background: var(--primary-dark);
  color: #fff;
  border-color: var(--primary-dark);
}
.cdoc-chip--solid i { color: #67e8f9; }

/* --- Shell (2-column, full-width) --- */
.cdoc-shell {
  max-width: none;
  margin: 0;
  padding: 0 0 0 0;
  display: grid;
  grid-template-columns: minmax(200px, 232px) 1fr;
  gap: 0;
  align-items: stretch;
}

/* --- Sidebar: full-height colored column --- */
.cdoc-side {
  background: var(--cdoc-surface-sidebar);
  border: 0;
  border-right: 1px solid var(--border-color);
  border-radius: 0;
  box-shadow: none;
  padding: 0;
}
.cdoc-side-inner {
  position: sticky;
  top: var(--cdoc-nav-h);
  display: flex;
  flex-direction: column;
  padding: 1rem 1.1rem;
  max-height: calc(100vh - var(--cdoc-nav-h));
  overflow-y: auto;
}
.cdoc-card {
  background: transparent;
  border: 0;
  border-radius: 0;
  padding: 1rem 0.25rem;
  box-shadow: none;
  border-bottom: 1px dashed var(--border-color);
}
.cdoc-card:first-child { padding-top: 0.25rem; }
.cdoc-card:last-child { border-bottom: 0; }
.cdoc-card-label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin: 0 0 0.6rem;
}
.cdoc-profile {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  text-align: left;
  padding: 0.5rem 0.25rem 1rem;
  background: transparent;
  position: relative;
}
.cdoc-profile-avatar {
  width: 65px;
  height: 65px;
  border-radius: 50%;
  margin: 0;
  display: block;
  border: 1px solid var(--border-color);
  background: #fff;
  padding: 2px;
  box-shadow: none;
  flex-shrink: 0;
}
.cdoc-profile-text {
  display: flex;
  flex-direction: column;
  min-width: 0;
}
.cdoc-profile-name {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 700;
  margin: 0;
  letter-spacing: 0.01em;
  color: var(--text-primary);
  line-height: 1.3;
}
.cdoc-profile-role {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--text-muted);
  margin: 0.15rem 0 0;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
.cdoc-status-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}
.cdoc-status-list li {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.85rem;
  color: var(--text-secondary);
  font-family: var(--font-mono);
}
.cdoc-status-list li i { color: #10b981; font-size: 0.7rem; }
.cdoc-status-list li.cdoc-status-progress i { color: #f59e0b; }
.cdoc-link-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0.4rem;
}
.cdoc-link-list a {
  display: flex;
  align-items: center;
  justify-content: center;
  aspect-ratio: 1 / 1;
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 1rem;
  border: 0;
  background: transparent;
  transition: var(--transition);
}
.cdoc-link-list a:hover {
  color: var(--accent-dark);
  background: rgba(8, 145, 178, 0.08);
}
.cdoc-link-list a i {
  width: auto;
  color: inherit;
}
.cdoc-link-list a span { display: none; }
.cdoc-toc {
  padding: 1rem 0.25rem 1.1rem;
}
.cdoc-toc-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.1rem;
}
.cdoc-toc-list a {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  padding: 0.4rem 0;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--text-secondary);
  text-decoration: none;
  border-left: 0;
  transition: var(--transition);
}
.cdoc-toc-list a:hover {
  color: var(--accent-dark);
  background: rgba(8, 145, 178, 0.04);
}
.cdoc-toc-list .cdoc-toc-mark {
  display: inline-flex;
  width: 22px;
  height: 22px;
  border: 1px solid var(--border-color);
  border-radius: 4px;
  align-items: center;
  justify-content: center;
  font-size: 0.7rem;
  color: var(--accent-dark);
  background: #fff;
  flex-shrink: 0;
}

/* --- Main column --- */
.cdoc-main {
  display: flex;
  flex-direction: column;
  gap: 0;
  min-width: 0;
  padding: 0.5rem 1.75rem 4rem 1.75rem;
}
.cdoc-section {
  background: transparent;
  border: 0;
  border-bottom: 1px solid var(--border-color);
  border-radius: 0;
  padding: 1.75rem 0.25rem 1.85rem;
  box-shadow: none;
  scroll-margin-top: var(--cdoc-nav-h);
  position: relative;
}
.cdoc-section:last-child { border-bottom: 0; }
.cdoc-section-head {
  display: flex;
  align-items: flex-start;
  gap: 0.95rem;
  padding-bottom: 1rem;
  margin-bottom: 1.25rem;
  border-bottom: 1px dashed var(--border-color);
}
.cdoc-section-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border-radius: 8px;
  background: var(--primary-dark);
  color: #fff;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 0.95rem;
  flex-shrink: 0;
  box-shadow: 0 2px 0 rgba(49, 46, 129, 0.15);
}
.cdoc-section-titles { flex: 1; min-width: 0; }
.cdoc-section-kicker {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  color: var(--text-muted);
  margin: 0 0 0.2rem;
}
.cdoc-section-kicker::before { content: '# '; color: var(--accent); }
.cdoc-section-title {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 700;
  margin: 0;
  line-height: 1.4;
  color: var(--text-primary);
}
.cdoc-section-link {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--accent-dark);
  text-decoration: none;
  align-self: center;
  white-space: nowrap;
}
.cdoc-section-link:hover { color: var(--primary-dark); text-decoration: underline; }

/* --- Overview grid --- */
.cdoc-overview {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.9rem;
}
.cdoc-overview-item {
  border: 0;
  border-left: 2px solid var(--accent);
  border-radius: 0;
  padding: 0.2rem 0 0.2rem 0.85rem;
  background: transparent;
  position: relative;
}
.cdoc-overview-index {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--accent);
  letter-spacing: 0.08em;
  display: block;
  margin-bottom: 0.35rem;
}
.cdoc-overview-item h3 {
  font-family: var(--font-display);
  font-size: 0.98rem;
  font-weight: 700;
  margin: 0 0 0.5rem;
  color: var(--text-primary);
}
.cdoc-overview-item p {
  font-size: 0.88rem;
  line-height: 1.75;
  color: var(--cdoc-text-body);
  margin: 0;
}

/* --- Timeline --- */
.cdoc-timeline {
  list-style: none;
  margin: 0;
  padding: 0;
  position: relative;
}
.cdoc-timeline::before {
  content: '';
  position: absolute;
  left: 9px;
  top: 6px;
  bottom: 6px;
  width: 2px;
  background: linear-gradient(180deg, var(--accent), var(--border-color));
}
.cdoc-timeline-item {
  position: relative;
  padding-left: 2rem;
  padding-bottom: 1.5rem;
}
.cdoc-timeline-item:last-child { padding-bottom: 0; }
.cdoc-timeline-item::before {
  content: '';
  position: absolute;
  left: 4px;
  top: 8px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: #fff;
  border: 2px solid var(--accent);
  box-shadow: 0 0 0 3px rgba(8, 145, 178, 0.1);
}
.cdoc-timeline-item.cdoc-timeline-current::before {
  background: var(--accent);
  box-shadow: 0 0 0 4px rgba(8, 145, 178, 0.2);
}
.cdoc-timeline-date {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--accent-dark);
  margin-bottom: 0.25rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
}
.cdoc-timeline-now {
  font-size: 0.65rem;
  background: #10b981;
  color: #fff;
  padding: 0.1rem 0.45rem;
  border-radius: 999px;
  letter-spacing: 0.06em;
}
.cdoc-timeline-title {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 700;
  margin: 0 0 0.4rem;
  color: var(--text-primary);
}
.cdoc-timeline-body {
  font-size: 0.9rem;
  line-height: 1.8;
  color: var(--cdoc-text-body);
  margin: 0 0 0.6rem;
}
.cdoc-tags { display: flex; flex-wrap: wrap; gap: 0.35rem; }
.cdoc-tag {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  padding: 0.2rem 0.55rem;
  border-radius: 4px;
  background: var(--cdoc-surface-tag);
  color: var(--primary-dark);
  border: 1px solid var(--border-color);
}
.cdoc-tag--accent {
  background: rgba(8, 145, 178, 0.08);
  color: var(--accent-dark);
  border-color: rgba(8, 145, 178, 0.25);
}
.cdoc-tag--green {
  background: rgba(16, 185, 129, 0.08);
  color: #047857;
  border-color: rgba(16, 185, 129, 0.25);
}

/* --- Skills table-like grid --- */
.cdoc-skills {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.75rem;
}
.cdoc-skill {
  border: 0;
  border-left: 1px solid var(--border-color);
  border-radius: 0;
  padding: 0.25rem 0 0.5rem 1rem;
  background: transparent;
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
}
.cdoc-skills > .cdoc-skill:first-child { border-left: 0; padding-left: 0; }
.cdoc-skill-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
}
.cdoc-skill-title {
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-weight: 700;
  margin: 0;
  color: var(--text-primary);
}
.cdoc-skill-cat {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--accent-dark);
  letter-spacing: 0.06em;
}
.cdoc-skill p {
  font-size: 0.86rem;
  line-height: 1.75;
  color: var(--cdoc-text-body);
  margin: 0;
}

/* --- Certifications --- */
.cdoc-certs {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.6rem;
}
.cdoc-cert {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  padding: 0.55rem 0;
  border: 0;
  border-bottom: 1px dashed var(--border-color);
  border-radius: 0;
  background: transparent;
  font-size: 0.88rem;
}
.cdoc-cert i {
  font-size: 0.95rem;
  color: #10b981;
}
.cdoc-cert.cdoc-cert--progress i { color: #f59e0b; }
.cdoc-cert-name { flex: 1; min-width: 0; color: var(--text-primary); font-weight: 500; }
.cdoc-cert-status {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  padding: 0.18rem 0.55rem;
  border-radius: 999px;
  background: rgba(16, 185, 129, 0.1);
  color: var(--cdoc-green-dark);
}
.cdoc-cert.cdoc-cert--progress .cdoc-cert-status {
  background: rgba(245, 158, 11, 0.12);
  color: var(--cdoc-amber-dark);
}

/* --- Projects --- */
.cdoc-projects {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}
.cdoc-project {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 1.25rem;
  border: 0;
  border-radius: 0;
  padding: 0.25rem 0 0.5rem;
  background: transparent;
  align-items: start;
}
.cdoc-project-media {
  border-radius: var(--radius-sm);
  overflow: hidden;
  background: #fff;
  border: 1px solid var(--border-color);
}
.cdoc-project-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.cdoc-project-label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--accent-dark);
  letter-spacing: 0.08em;
  margin: 0 0 0.3rem;
}
.cdoc-project-title {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 700;
  margin: 0 0 0.5rem;
  color: var(--text-primary);
}
.cdoc-project-body {
  font-size: 0.9rem;
  line-height: 1.8;
  color: var(--cdoc-text-body);
  margin: 0 0 0.65rem;
}
.cdoc-project-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 0.5rem;
}
.cdoc-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.45rem 0.95rem;
  border-radius: var(--radius-sm);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  text-decoration: none;
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  background: #fff;
  transition: var(--transition);
}
.cdoc-btn:hover { border-color: var(--accent); color: var(--accent-dark); }
.cdoc-btn--primary {
  background: var(--primary-dark);
  color: #fff;
  border-color: var(--primary-dark);
}
.cdoc-btn--primary:hover { background: var(--primary); color: #fff; border-color: var(--primary); }

/* --- Publishing --- */
.cdoc-publish {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}
.cdoc-pub-card {
  border: 0;
  border-left: 1px solid var(--border-color);
  border-radius: 0;
  padding: 0.25rem 0 0.5rem 1rem;
  background: transparent;
}
.cdoc-publish > .cdoc-pub-card:first-child { border-left: 0; padding-left: 0; }
.cdoc-pub-card h3 {
  font-family: var(--font-display);
  font-size: 0.98rem;
  font-weight: 700;
  margin: 0 0 0.45rem;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.cdoc-pub-card h3 i { color: var(--accent); }
.cdoc-pub-card p {
  font-size: 0.88rem;
  line-height: 1.75;
  color: var(--cdoc-text-body);
  margin: 0 0 0.85rem;
}
.cdoc-pub-card .qiita-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}
.cdoc-pub-card .qiita-list li {
  font-size: 0.85rem;
  border-top: 1px dashed var(--border-color);
  padding-top: 0.4rem;
}
.cdoc-pub-card .qiita-list li:first-child { border-top: none; padding-top: 0; }
.cdoc-pub-card .qiita-list a {
  color: var(--text-primary);
  text-decoration: none;
  display: inline-flex;
  gap: 0.45rem;
  align-items: baseline;
  line-height: 1.55;
}
.cdoc-pub-card .qiita-list a::before {
  content: '›';
  color: var(--accent);
  font-family: var(--font-mono);
}
.cdoc-pub-card .qiita-list a:hover { color: var(--accent-dark); }
.cdoc-pub-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

/* --- Responsive --- */
@media (max-width: 1023px) {
  .cdoc-shell {
    grid-template-columns: 1fr;
    gap: 0;
  }
  .cdoc-side {
    border-right: 0;
    border-bottom: 1px solid var(--border-color);
  }
  .cdoc-side-inner {
    position: static;
    padding: 1.25rem 1.25rem;
  }
  .cdoc-main {
    padding: 0.75rem 1.25rem 3rem;
  }
  .cdoc-toc-list {
    flex-direction: row;
    flex-wrap: wrap;
    gap: 0.4rem;
  }
  .cdoc-toc-list a {
    border-left: none;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: 0.4rem 0.7rem;
  }
  .cdoc-toc-list a:hover { border-color: var(--accent); background: rgba(8, 145, 178, 0.05); }
}
@media (max-width: 767px) {
  .cdoc { padding: var(--cdoc-nav-h) 0 0; }
  .cdoc-hero { padding: 1.1rem 1rem 1.2rem; }
  .cdoc-shell { padding: 0 1rem; }
  .cdoc-side {
    grid-template-columns: 1fr;
  }
  .cdoc-section { padding: 1.35rem 1.15rem 1.4rem; }
  .cdoc-section-head { gap: 0.7rem; }
  .cdoc-overview { grid-template-columns: 1fr; }
  .cdoc-skills { grid-template-columns: 1fr; }
  .cdoc-certs { grid-template-columns: 1fr; }
  .cdoc-publish { grid-template-columns: 1fr; }
  .cdoc-project { grid-template-columns: 1fr; }
  .cdoc-project-media { height: 180px; }
  .cdoc-hero-title { font-size: 1.2rem; }
}
@media (max-width: 480px) {
  .cdoc-section-title { font-size: 1.05rem; }
  .cdoc-section-badge { width: 28px; height: 28px; font-size: 0.8rem; }
}

/* --- Sub-elements shared by sub-pages --- */
.cdoc-section .cdoc-publish + .cdoc-figure,
.cdoc-section .cdoc-tags + .cdoc-publish,
.cdoc-section .cdoc-project-body + .cdoc-figure,
.cdoc-section > .cdoc-figure { margin-top: 1.25rem; }
.cdoc-subtitle {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 700;
  margin: 1.4rem 0 0.7rem;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.cdoc-subtitle i { color: var(--accent); font-size: 0.95rem; }
.cdoc-figure {
  margin: 0;
  padding: 0.85rem;
  border: 1px dashed var(--border-color);
  border-radius: var(--radius-sm);
  text-align: center;
  background: var(--cdoc-surface-soft);
}
.cdoc-figure img {
  max-width: 100%;
  height: auto;
  display: block;
  margin: 0 auto;
  cursor: zoom-in;
}
.cdoc-figure figcaption {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-muted);
  margin-top: 0.55rem;
  letter-spacing: 0.04em;
}
.cdoc-figure figcaption i { color: var(--accent); margin-right: 0.25rem; }
.cdoc-status-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.25rem 0.65rem;
  border-radius: 999px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.04em;
  margin: 0;
}
.cdoc-status-pill--wip {
  background: rgba(245, 158, 11, 0.12);
  color: var(--cdoc-amber-dark);
}
.cdoc-status-pill--planned {
  background: rgba(99, 102, 241, 0.1);
  color: #4338ca;
}
.cdoc-status-pill--done {
  background: rgba(16, 185, 129, 0.1);
  color: var(--cdoc-green-dark);
}

/* --- Footer (cdoc-page only) --- */
body.cdoc-page .site-footer::before { content: none !important; display: none !important; }
body.cdoc-page .site-footer {
  background: #0b1d4d !important;
  border-top: 1px solid #142a66 !important;
  padding: 1.2rem 0 !important;
  color: #cbd5e1 !important;
  margin-top: 0 !important;
}
body.cdoc-page .site-footer > .container {
  max-width: none !important;
  width: 100% !important;
  padding-left: 1.75rem !important;
  padding-right: 1.75rem !important;
}
body.cdoc-page .footer-brand {
  font-family: var(--font-display) !important;
  font-weight: 700 !important;
  font-size: 1rem !important;
  color: #f8fafc !important;
  display: inline-flex !important;
  align-items: center !important;
  gap: 0.5rem !important;
}
body.cdoc-page .footer-brand-icon {
  width: 24px !important;
  height: 24px !important;
  border-radius: 50% !important;
  background: #fff !important;
  padding: 2px !important;
  border: 1px solid #334155 !important;
}
body.cdoc-page .footer-text {
  color: #94a3b8 !important;
  font-size: 0.78rem !important;
  margin-top: 0.25rem !important;
  font-family: var(--font-mono) !important;
  letter-spacing: 0.04em !important;
}
body.cdoc-page .footer-social {
  display: inline-flex;
  gap: 0.65rem;
  margin-bottom: 0.25rem;
}
body.cdoc-page .footer-social a {
  width: 32px;
  height: 32px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  color: #cbd5e1 !important;
  border: 1px solid #334155;
  transition: var(--transition);
}
body.cdoc-page .footer-social a:hover {
  color: #67e8f9 !important;
  border-color: #67e8f9;
  background: rgba(103, 232, 249, 0.08);
}
body.cdoc-page .footer-copy {
  color: #94a3b8 !important;
  font-size: 0.72rem !important;
  font-family: var(--font-mono) !important;
  letter-spacing: 0.04em !important;
  margin-top: 0.25rem !important;
}