/* pages.css - shared page-specific layouts for home, books, talks, benchmarks, contact */

/* Home */
.home-hero {
  background:
    radial-gradient(ellipse 40% 60% at 92% 12%, color-mix(in oklab, var(--color-primary) 9%, transparent), transparent),
    radial-gradient(ellipse 28% 40% at 8% 88%, color-mix(in oklab, var(--color-gold) 7%, transparent), transparent),
    var(--color-bg);
  border-bottom: 1px solid var(--color-divider);
}
.home-grid {
  display: grid;
  grid-template-columns: 1fr 360px;
  gap: var(--space-12);
  align-items: center;
}
.home-copy {
  display: grid;
  gap: var(--space-5);
}
.home-meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}
.home-aside {
  border: 1px solid color-mix(in oklab, var(--color-text) 10%, transparent);
  background: color-mix(in oklab, var(--color-surface) 96%, transparent);
  border-radius: var(--radius-2xl);
  padding: var(--space-6);
  box-shadow: var(--shadow-sm);
  display: grid;
  gap: var(--space-3);
}
.home-aside h2 {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 400;
}
.home-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
}

/* Books */
.book-hero {
  background:
    radial-gradient(ellipse 42% 62% at 96% 0%, color-mix(in oklab, var(--color-primary) 8%, transparent), transparent),
    var(--color-bg);
  border-bottom: 1px solid var(--color-divider);
}
.book-hero-grid {
  display: grid;
  grid-template-columns: 1fr 430px;
  gap: var(--space-12);
  align-items: center;
}
.book-hero-text {
  display: grid;
  gap: var(--space-4);
}
.book-main-title {
  font-family: var(--font-display);
  font-size: clamp(2.1rem, 5vw, 3.6rem);
  line-height: 0.98;
  font-weight: 400;
}
.book-hero-desc {
  font-size: var(--text-lg);
  color: var(--color-text-muted);
}
.book-meta-row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
  align-items: center;
}
.book-meta-item {
  display: grid;
  gap: 2px;
}
.book-meta-label {
  font-size: var(--text-xs);
  color: var(--color-text-faint);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}
.book-meta-value {
  font-size: var(--text-sm);
  font-weight: 700;
}
.book-meta-divider {
  width: 1px;
  height: 34px;
  background: var(--color-divider);
}
.book-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
}
.book-cover-3d {
  border-radius: var(--radius-xl);
  overflow: hidden;
  border: 1px solid color-mix(in oklab, var(--color-text) 12%, transparent);
  box-shadow: var(--shadow-lg);
}
.book-cover-image {
  width: 100%;
  height: auto;
  object-fit: cover;
}
.book-hero-cover {
  display: grid;
  grid-template-columns: minmax(240px, 1.05fr) minmax(180px, 0.95fr);
  gap: var(--space-4);
  align-items: stretch;
}
.book-hero-cover .book-cover-3d {
  height: 100%;
}
.book-hero-cover .book-cover-image {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  aspect-ratio: 400 / 525;
}
.book-stats {
  margin-top: 0;
  display: grid;
  grid-template-columns: 1fr;
  grid-template-rows: repeat(3, minmax(0, 1fr));
  gap: var(--space-3);
  height: 100%;
}
.book-stat {
  border-radius: var(--radius-lg);
  border: 1px solid color-mix(in oklab, var(--color-text) 12%, transparent);
  padding: var(--space-3);
  background: color-mix(in oklab, var(--color-surface) 95%, transparent);
  display: grid;
  place-content: center;
  height: 100%;
  text-align: center;
}
.book-stat strong {
  display: block;
  color: var(--color-primary);
  font-size: var(--text-lg);
}
.book-stat span {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
}
.audience-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-4);
}
.audience-card {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  column-gap: var(--space-3);
  row-gap: var(--space-2);
  align-items: start;
  padding: var(--space-5);
  border-radius: var(--radius-xl);
  border: 1px solid color-mix(in oklab, var(--color-text) 10%, transparent);
  background: color-mix(in oklab, var(--color-surface) 96%, transparent);
}
.audience-icon {
  grid-column: 2;
  grid-row: 1;
  justify-self: end;
  align-self: center;
}
.audience-card h3 {
  font-size: var(--text-base);
  grid-column: 1;
  grid-row: 1;
  align-self: center;
}
.audience-card p {
  color: var(--color-text-muted);
  font-size: var(--text-sm);
  max-width: none;
  grid-column: 1 / -1;
}
.learn-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: var(--space-8);
  align-items: start;
}
.learn-text {
  display: grid;
  gap: var(--space-4);
}
.learn-text-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  align-items: center;
}
.btn-github-black {
  background: #111111;
  color: #ffffff;
  border-color: #111111;
}
.btn-github-black:hover {
  background: #000000;
  border-color: #000000;
  color: #ffffff;
}
.learn-text h2 {
  font-family: var(--font-display);
  font-size: var(--text-3xl);
  font-weight: 400;
}
.learn-text p {
  color: var(--color-text-muted);
}
.learn-list {
  display: grid;
  gap: var(--space-4);
}
.learn-item {
  display: grid;
  grid-template-columns: 34px 1fr;
  gap: var(--space-3);
  padding: var(--space-4);
  border-radius: var(--radius-lg);
  border: 1px solid color-mix(in oklab, var(--color-text) 11%, transparent);
  background: color-mix(in oklab, var(--color-surface) 95%, transparent);
}
.learn-num {
  font-weight: 800;
  color: var(--color-primary);
  font-size: var(--text-sm);
  padding-top: 2px;
}
.learn-item strong {
  display: block;
  margin-bottom: 3px;
}
.learn-item p {
  color: var(--color-text-muted);
  font-size: var(--text-sm);
  max-width: none;
}
.chapter-item {
  border: 1px solid color-mix(in oklab, var(--color-text) 10%, transparent);
  border-radius: var(--radius-lg);
  background: color-mix(in oklab, var(--color-surface) 96%, transparent);
  margin-bottom: var(--space-3);
  overflow: hidden;
}
.chapter-trigger {
  width: 100%;
  display: grid;
  grid-template-columns: auto 1fr auto auto;
  gap: var(--space-3);
  align-items: center;
  text-align: left;
  padding: var(--space-4) var(--space-5);
}
.chapter-num {
  font-size: var(--text-xs);
  color: var(--color-primary);
  font-weight: 800;
}
.chapter-title {
  font-size: var(--text-sm);
  font-weight: 700;
}
.chapter-count {
  font-size: var(--text-xs);
  color: var(--color-text-faint);
}
.chapter-body {
  border-top: 1px solid var(--color-divider);
  padding: var(--space-4) var(--space-5);
}
.chapter-list {
  display: grid;
  gap: var(--space-2);
}
.chapter-list li {
  display: grid;
  grid-template-columns: 48px 1fr;
  gap: var(--space-3);
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}
.chapter-list li span {
  color: var(--color-text);
  font-weight: 700;
}

/* Talks */
.talks-hero {
  background:
    radial-gradient(ellipse 40% 56% at 92% 6%, color-mix(in oklab, var(--color-primary) 8%, transparent), transparent),
    var(--color-bg);
  border-bottom: 1px solid var(--color-divider);
}
.talks-hero-inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 360px;
  gap: var(--space-6);
  align-items: start;
}
.talks-hero-text {
  display: grid;
  gap: var(--space-4);
}
.talks-hero-side {
  display: grid;
  gap: var(--space-3);
}
.talks-logo-panel {
  border: 1px solid color-mix(in oklab, var(--color-text) 10%, transparent);
  border-radius: var(--radius-xl);
  background: color-mix(in oklab, var(--color-surface) 95%, transparent);
  padding: var(--space-4);
  display: grid;
  gap: var(--space-3);
}
.talks-logo-panel h2 {
  font-size: var(--text-sm);
}
.talks-logo-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-2);
}
.talk-logo-chip {
  border: 1px solid color-mix(in oklab, var(--color-text) 12%, transparent);
  border-radius: var(--radius-lg);
  background: color-mix(in oklab, var(--color-surface-2) 80%, transparent);
  min-height: 52px;
  padding: var(--space-2) var(--space-3);
  display: grid;
  align-content: center;
  gap: 2px;
}
.talk-logo-mark {
  font-weight: 800;
  font-size: var(--text-sm);
  color: var(--color-text);
  letter-spacing: 0.01em;
}
.talk-logo-meta {
  font-size: var(--text-xs);
  color: var(--color-text-faint);
}
.talks-cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
}
.talks-stats-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 0;
  border: 1px solid color-mix(in oklab, var(--color-text) 11%, transparent);
  border-radius: var(--radius-xl);
  background: color-mix(in oklab, var(--color-surface) 95%, transparent);
  overflow: hidden;
  width: fit-content;
  grid-column: 1 / -1;
}
.talks-stat {
  padding: var(--space-4) var(--space-5);
  display: grid;
  gap: 2px;
}
.talks-stat strong {
  color: var(--color-primary);
  font-size: var(--text-lg);
}
.talks-stat span {
  color: var(--color-text-muted);
  font-size: var(--text-xs);
}
.talks-stat-divider {
  width: 1px;
  background: var(--color-divider);
}
.section-lead {
  color: var(--color-text-muted);
  max-width: 62ch;
}
.topics-section.section-padded {
  padding-block: clamp(2.2rem, 5vw, 3.4rem);
}
.topics-section .container {
  display: grid;
  grid-template-columns: minmax(220px, 300px) minmax(0, 1fr);
  gap: var(--space-6);
  align-items: start;
}
.topics-section .section-header {
  margin: 0;
  display: grid;
  gap: var(--space-2);
}
.topics-section .section-header h2 {
  font-size: clamp(1.4rem, 2.4vw, 1.9rem);
  line-height: 1.08;
}
.topics-section .section-lead {
  font-size: var(--text-sm);
  max-width: 38ch;
}
.topics-section .topics-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: var(--space-2);
}
.topic-pill {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  border: 1px solid color-mix(in oklab, var(--color-text) 11%, transparent);
  border-radius: var(--radius-lg);
  padding: 0.5rem 0.74rem;
  font-size: 0.84rem;
  line-height: 1.3;
  font-weight: 600;
  color: var(--color-text);
  background: linear-gradient(
    180deg,
    color-mix(in oklab, var(--color-surface) 98%, transparent),
    color-mix(in oklab, var(--color-surface-2) 78%, transparent)
  );
  box-shadow: inset 0 1px 0 color-mix(in oklab, #fff 32%, transparent);
  transition: border-color 180ms ease, transform 180ms ease, background 180ms ease;
}
.topic-pill::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 999px;
  flex: 0 0 6px;
  background: color-mix(in oklab, var(--color-primary) 72%, white 28%);
}
.topic-pill:hover {
  border-color: color-mix(in oklab, var(--color-primary) 26%, var(--color-text) 6%);
  transform: translateY(-1px);
}
.list-header-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  margin-bottom: var(--space-6);
}
.list-header-row h2 {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 400;
}
.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}
.talks-table {
  display: grid;
  gap: var(--space-6);
}
.year-group {
  display: grid;
  grid-template-columns: 88px minmax(0, 1fr);
  gap: var(--space-4);
  align-items: start;
}
.year-aside {
  display: grid;
  gap: var(--space-2);
}
.year-label {
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 0.16em;
  font-weight: 800;
  color: var(--color-primary);
}
.year-dates {
  display: grid;
  gap: var(--space-2);
}
.talks-rows {
  display: grid;
  gap: var(--space-3);
}
.year-group[hidden],
.talk-row[hidden],
.talk-date[hidden] {
  display: none !important;
}
.talk-row {
  display: grid;
  grid-template-columns: 132px minmax(0, 1fr) auto;
  gap: var(--space-4);
  align-items: start;
  border: 1px solid color-mix(in oklab, var(--color-text) 10%, transparent);
  border-radius: var(--radius-xl);
  background: color-mix(in oklab, var(--color-surface) 96%, transparent);
  padding: var(--space-5);
}
.talk-row--no-photo {
  grid-template-columns: minmax(0, 1fr) auto;
}
.talk-photo-link {
  display: block;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: color-mix(in oklab, var(--color-surface-2) 80%, transparent);
}
.talk-photo-static {
  background: transparent;
}
.talk-photo {
  width: 100%;
  height: 100%;
  min-height: 82px;
  max-height: 98px;
  object-fit: cover;
  display: block;
}
.talk-main {
  display: grid;
  gap: var(--space-3);
}
.talk-title {
  font-size: var(--text-base);
  font-weight: 700;
  line-height: 1.35;
}
.talk-event {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}
.talk-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}
.talk-date {
  font-size: var(--text-xs);
  color: var(--color-text-faint);
  white-space: nowrap;
  line-height: 1.15;
}
.talk-links {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  justify-content: flex-start;
  align-items: flex-end;
}
.talk-link-btn {
  font-size: var(--text-xs);
  border: 1px solid color-mix(in oklab, var(--color-text) 14%, transparent);
  border-radius: var(--radius-full);
  padding: 0.35rem 0.7rem;
  color: var(--color-text-muted);
}
.talk-link-btn:hover {
  color: var(--color-text);
  border-color: color-mix(in oklab, var(--color-primary) 25%, transparent);
}
.talks-empty {
  border: 1px dashed color-mix(in oklab, var(--color-text) 20%, transparent);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  text-align: center;
  color: var(--color-text-muted);
}
.text-reset-btn {
  color: var(--color-primary);
  text-decoration: underline;
}
.talk-year-filter {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}
.talk-events {
  background: color-mix(in oklab, var(--color-surface) 80%, var(--color-bg));
  border-top: 1px solid var(--color-divider);
  border-bottom: 1px solid var(--color-divider);
}
.talk-events-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-4);
}
.talk-event-card {
  border: 1px solid color-mix(in oklab, var(--color-text) 10%, transparent);
  border-radius: var(--radius-xl);
  background: color-mix(in oklab, var(--color-surface) 96%, transparent);
  padding: var(--space-5);
  display: grid;
  gap: var(--space-3);
}
.talk-event-top {
  display: flex;
  gap: var(--space-2);
  flex-wrap: wrap;
}
.talk-event-card h3 {
  font-size: var(--text-base);
}
.talk-event-card p {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

/* Benchmarks */
.bench-hero {
  background:
    radial-gradient(ellipse 40% 60% at 95% 2%, color-mix(in oklab, var(--color-primary) 8%, transparent), transparent),
    var(--color-bg);
  border-bottom: 1px solid var(--color-divider);
}
.bench-hero-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-8);
  align-items: center;
}
.bench-hero-text {
  display: grid;
  gap: var(--space-4);
}
.hero-course-preview { display: grid; gap: var(--space-4); }
.preview-window {
  border-radius: var(--radius-xl);
  overflow: hidden;
  border: 1px solid color-mix(in oklab, var(--color-text) 12%, transparent);
  box-shadow: var(--shadow-lg);
  background: color-mix(in oklab, var(--color-surface) 96%, transparent);
}
.preview-bar {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  background: color-mix(in oklab, var(--color-surface-offset) 80%, transparent);
  border-bottom: 1px solid var(--color-divider);
}
.dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  flex-shrink: 0;
}
.dot.red { background: #ff5f57; }
.dot.amber { background: #febc2e; }
.dot.green { background: #28c840; }
.preview-label { font-size: var(--text-xs); color: var(--color-text-faint); margin-left: var(--space-2); }
.preview-code {
  padding: var(--space-5) var(--space-5);
  font-family: "Fira Code", "Cascadia Code", "Consolas", monospace;
  font-size: 0.78rem;
  line-height: 1.7;
  color: var(--color-text-muted);
  min-height: 220px;
}
.code-line { white-space: pre; }
.tok-kw { color: var(--color-primary); font-weight: 600; }
.tok-str { color: var(--color-gold); }
.tok-com { color: var(--color-text-faint); font-style: italic; }
.code-cursor { display: inline-block; color: var(--color-primary); animation: blink 1.1s step-end infinite; }
@keyframes blink { 0%, 100% { opacity: 1; } 50% { opacity: 0; } }
.preview-tags { display: flex; flex-wrap: wrap; gap: var(--space-2); }
.bench-philosophy {
  border: 1px solid color-mix(in oklab, var(--color-text) 10%, transparent);
  border-radius: var(--radius-xl);
  background: color-mix(in oklab, var(--color-surface) 95%, transparent);
  padding: var(--space-6);
}
.philosophy-quote p {
  font-size: var(--text-lg);
  font-family: var(--font-display);
  line-height: 1.25;
}
.philosophy-quote footer {
  margin-top: var(--space-3);
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}
.bench-filter-row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-bottom: var(--space-5);
}
.bench-cards {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-4);
}
.bench-card {
  border: 1px solid color-mix(in oklab, var(--color-text) 10%, transparent);
  border-radius: var(--radius-xl);
  background: color-mix(in oklab, var(--color-surface) 96%, transparent);
  padding: var(--space-5);
  display: grid;
  gap: var(--space-3);
}
.bench-card-header {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}
.bench-status-badge,
.bench-domain-badge {
  font-size: var(--text-xs);
  border-radius: var(--radius-full);
  padding: 0.2rem 0.7rem;
  font-weight: 700;
}
.status-published { background: color-mix(in oklab, var(--color-success) 13%, transparent); color: var(--color-success); }
.status-progress { background: color-mix(in oklab, var(--color-gold) 13%, transparent); color: var(--color-gold); }
.status-planned { background: color-mix(in oklab, var(--color-text-faint) 15%, transparent); color: var(--color-text-muted); }
.bench-domain-badge { background: color-mix(in oklab, var(--color-primary) 13%, transparent); color: var(--color-primary); }
.bench-card-title {
  font-size: var(--text-xl);
  font-family: var(--font-display);
  font-weight: 400;
}
.bench-card-desc,
.bench-task,
.bench-task strong {
  font-size: var(--text-sm);
}
.bench-card-desc,
.bench-task {
  color: var(--color-text-muted);
}
.bench-specs {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-2);
}
.bench-spec {
  border: 1px solid color-mix(in oklab, var(--color-text) 10%, transparent);
  border-radius: var(--radius-md);
  padding: var(--space-2) var(--space-3);
  background: color-mix(in oklab, var(--color-surface-2) 80%, transparent);
}
.bench-spec dt { font-size: var(--text-xs); color: var(--color-text-faint); }
.bench-spec dd { font-size: var(--text-sm); margin-top: 2px; }
.bench-card-actions { display: flex; gap: var(--space-2); flex-wrap: wrap; }
.bench-empty {
  margin-top: var(--space-4);
  border: 1px dashed color-mix(in oklab, var(--color-text) 20%, transparent);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  text-align: center;
}
.methodology-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-8);
}
.methodology-text {
  display: grid;
  gap: var(--space-4);
}
.methodology-principles {
  display: grid;
  gap: var(--space-3);
}
.principle-item {
  display: grid;
  grid-template-columns: 42px 1fr;
  gap: var(--space-3);
  padding: var(--space-4);
  border-radius: var(--radius-lg);
  border: 1px solid color-mix(in oklab, var(--color-text) 10%, transparent);
  background: color-mix(in oklab, var(--color-surface) 95%, transparent);
}
.principle-num {
  font-weight: 800;
  color: var(--color-primary);
}
.principle-item p {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  max-width: none;
}

/* Contact */
.contact-hero {
  background:
    radial-gradient(ellipse 35% 55% at 90% 8%, color-mix(in oklab, var(--color-primary) 8%, transparent), transparent),
    var(--color-bg);
  border-bottom: 1px solid var(--color-divider);
}
.contact-hero-inner {
  display: grid;
  gap: var(--space-4);
}
.contact-hero-text {
  display: grid;
  gap: var(--space-4);
}
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-4);
}
.service-card {
  border: 1px solid color-mix(in oklab, var(--color-text) 10%, transparent);
  border-radius: var(--radius-xl);
  background: color-mix(in oklab, var(--color-surface) 96%, transparent);
  padding: var(--space-5);
  display: grid;
  gap: var(--space-3);
}
.service-card--featured {
  border-color: color-mix(in oklab, var(--color-primary) 26%, transparent);
  box-shadow: var(--shadow-sm);
}
.service-badge-top {
  font-size: var(--text-xs);
  color: var(--color-primary);
  font-weight: 700;
}
.service-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  background: color-mix(in oklab, var(--color-primary) 10%, transparent);
  color: var(--color-primary);
}
.service-details {
  display: grid;
  gap: 4px;
  padding-left: 1rem;
  list-style: disc;
}
.service-details li {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}
.form-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: var(--space-8);
  align-items: start;
}
.contact-links {
  display: grid;
  gap: var(--space-2);
  margin-top: var(--space-3);
}
.contact-link-item {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}
.contact-form {
  border: 1px solid color-mix(in oklab, var(--color-text) 10%, transparent);
  border-radius: var(--radius-xl);
  background: color-mix(in oklab, var(--color-surface) 96%, transparent);
  padding: var(--space-6);
  display: grid;
  gap: var(--space-4);
}
.form-row {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-3);
}
.select-wrap {
  position: relative;
}
.select-arrow {
  position: absolute;
  right: 0.75rem;
  top: 50%;
  transform: translateY(-50%);
  pointer-events: none;
  color: var(--color-text-faint);
}
.form-footer {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  align-items: center;
  justify-content: space-between;
}
.form-privacy {
  font-size: var(--text-xs);
  color: var(--color-text-faint);
}
.form-success {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-sm);
  color: var(--color-success);
}
.contact-toast {
  position: fixed;
  right: var(--space-5);
  bottom: var(--space-5);
  z-index: 120;
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  max-width: min(92vw, 28rem);
  padding: 0.75rem 1rem;
  border-radius: var(--radius-lg);
  border: 1px solid color-mix(in oklab, var(--color-success) 30%, transparent);
  background: color-mix(in oklab, var(--color-surface) 92%, var(--color-success) 8%);
  color: var(--color-text);
  box-shadow: var(--shadow-md);
  opacity: 0;
  transform: translateY(8px);
  pointer-events: none;
  transition: opacity var(--transition-fast), transform var(--transition-fast);
}
.contact-toast.is-visible {
  opacity: 1;
  transform: translateY(0);
}
.contact-toast-dot {
  width: 0.5rem;
  height: 0.5rem;
  border-radius: var(--radius-full);
  background: var(--color-success);
  flex: 0 0 auto;
}
@media (max-width: 640px) {
  .contact-toast {
    right: var(--space-4);
    left: var(--space-4);
    bottom: var(--space-4);
  }
}

/* Projects */
.projects-hero {
  background:
    radial-gradient(ellipse 35% 55% at 90% 8%, color-mix(in oklab, var(--color-primary) 8%, transparent), transparent),
    var(--color-bg);
  border-bottom: 1px solid var(--color-divider);
}
.projects-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--space-4);
}
html[data-page="books"] .publications-list {
  grid-template-columns: minmax(0, 1fr);
}
.projects-grid > * {
  min-width: 0;
}
.project-card {
  border: 1px solid color-mix(in oklab, var(--color-text) 10%, transparent);
  border-radius: var(--radius-xl);
  background: color-mix(in oklab, var(--color-surface) 96%, transparent);
  padding: var(--space-5);
  display: grid;
  gap: var(--space-3);
  min-width: 0;
  overflow: hidden;
}
.project-card > * {
  min-width: 0;
  max-width: 100%;
}
.project-card-top {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}
.project-card h3 {
  font-size: var(--text-xl);
  font-family: var(--font-display);
  font-weight: 400;
  overflow-wrap: anywhere;
  word-break: break-word;
}
.project-card p {
  color: var(--color-text-muted);
  font-size: var(--text-sm);
  max-width: none;
  overflow-wrap: anywhere;
  word-break: break-word;
}
.project-tags,
.project-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  min-width: 0;
}
.project-tags .badge,
.project-card-top .badge {
  max-width: 100%;
  white-space: normal;
  overflow-wrap: anywhere;
  word-break: break-word;
}
.project-actions .btn {
  max-width: 100%;
  white-space: normal;
  overflow-wrap: anywhere;
  word-break: break-word;
}
.projects-empty {
  color: var(--color-text-muted);
}

/* Gallery */
.gallery-hero {
  background:
    radial-gradient(ellipse 38% 58% at 88% 10%, color-mix(in oklab, var(--color-primary) 9%, transparent), transparent),
    var(--color-bg);
  border-bottom: 1px solid var(--color-divider);
}
.gallery-timeline {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-5);
}
.gallery-card {
  border: 1px solid color-mix(in oklab, var(--color-text) 10%, transparent);
  border-radius: var(--radius-xl);
  background: color-mix(in oklab, var(--color-surface) 96%, transparent);
  overflow: hidden;
  cursor: pointer;
  transition: transform 180ms ease, border-color 180ms ease;
}
.gallery-card:hover,
.gallery-card:focus-visible {
  transform: translateY(-2px);
  border-color: color-mix(in oklab, var(--color-primary) 26%, var(--color-text) 8%);
}
.gallery-card-media {
  border-bottom: 1px solid color-mix(in oklab, var(--color-text) 10%, transparent);
}
.gallery-card-media img {
  width: 100%;
  height: 220px;
  object-fit: cover;
  display: block;
}
.gallery-card-body {
  display: grid;
  gap: var(--space-2);
  padding: var(--space-4);
}
.gallery-date {
  font-size: var(--text-xs);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-primary);
  font-weight: 700;
}
.gallery-card h3 {
  font-size: var(--text-lg);
  font-family: var(--font-display);
  font-weight: 400;
}
.gallery-meta {
  color: var(--color-text-faint);
  font-size: var(--text-xs);
}
.gallery-caption {
  color: var(--color-text-muted);
  font-size: var(--text-sm);
}
.gallery-lightbox[hidden] {
  display: none !important;
}
.gallery-lightbox {
  position: fixed;
  inset: 0;
  z-index: 90;
  background: rgba(8, 10, 14, 0.82);
  backdrop-filter: blur(3px);
  display: grid;
  grid-template-columns: auto minmax(0, 980px) auto;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-5);
}
.gallery-lightbox-figure {
  border: 1px solid color-mix(in oklab, #fff 18%, transparent);
  border-radius: var(--radius-xl);
  background: color-mix(in oklab, var(--color-surface) 94%, transparent);
  overflow: hidden;
  max-height: 90vh;
  display: grid;
  grid-template-rows: minmax(0, 1fr) auto;
}
.gallery-lightbox-figure img {
  width: 100%;
  max-height: 66vh;
  object-fit: contain;
  display: block;
  background: color-mix(in oklab, var(--color-surface-2) 82%, transparent);
}
.gallery-lightbox-caption-wrap {
  display: grid;
  gap: var(--space-2);
  padding: var(--space-4);
}
.gallery-lightbox-date {
  font-size: var(--text-xs);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-primary);
  font-weight: 700;
}
.gallery-lightbox-title {
  font-size: var(--text-2xl);
  font-family: var(--font-display);
  font-weight: 400;
}
.gallery-lightbox-meta,
.gallery-lightbox-caption,
.gallery-lightbox-counter {
  color: var(--color-text-muted);
  font-size: var(--text-sm);
}
.gallery-lightbox-counter {
  color: var(--color-text-faint);
}
.gallery-lightbox-nav,
.gallery-lightbox-close {
  width: 2.6rem;
  height: 2.6rem;
  border-radius: 999px;
  border: 1px solid color-mix(in oklab, #fff 34%, transparent);
  background: rgba(20, 23, 31, 0.86);
  color: #fff;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
}
.gallery-lightbox-close {
  position: absolute;
  top: var(--space-4);
  right: var(--space-4);
}


/* Shared responsive */
@media (max-width: 1100px) {
  .book-hero-grid,
  .bench-hero-inner,
  .methodology-grid,
  .form-grid,
  .home-grid {
    grid-template-columns: 1fr;
  }
  .topics-section .container {
    grid-template-columns: 1fr;
    gap: var(--space-4);
  }
  .services-grid,
  .bench-cards,
  .projects-grid,
  .gallery-timeline {
    grid-template-columns: 1fr;
  }
  .talks-hero-inner {
    grid-template-columns: 1fr;
  }
  .book-hero-cover {
    grid-template-columns: minmax(130px, 42%) minmax(0, 1fr);
  }
}
@media (max-width: 860px) {
  .topics-grid,
  .audience-grid {
    grid-template-columns: 1fr;
  }
  .learn-grid {
    grid-template-columns: 1fr;
  }
  .talk-row {
    grid-template-columns: 1fr;
    gap: var(--space-2);
  }
  .year-group {
    grid-template-columns: 1fr;
    gap: var(--space-2);
  }
  .year-aside,
  .year-dates {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: var(--space-2);
  }
  .talk-photo {
    max-height: 200px;
  }
  .talks-logo-grid {
    grid-template-columns: 1fr;
  }
  .talk-events-grid {
    grid-template-columns: 1fr;
  }
  .talk-links {
    align-items: flex-start;
    flex-direction: row;
    flex-wrap: wrap;
  }
  .list-header-row {
    align-items: flex-start;
  }
  .filter-bar,
  .talk-year-filter {
    flex-wrap: nowrap;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    padding-bottom: var(--space-1);
  }
  .filter-bar::-webkit-scrollbar,
  .talk-year-filter::-webkit-scrollbar {
    display: none;
  }
  .filter-bar .filter-btn,
  .talk-year-filter .filter-btn {
    flex: 0 0 auto;
  }
  .talk-date {
    white-space: normal;
  }
  .book-meta-row {
    gap: var(--space-2);
  }
  .book-meta-divider {
    display: none;
  }
  .book-stats,
  .bench-specs {
    grid-template-columns: 1fr;
  }
  .chapter-trigger {
    grid-template-columns: minmax(0, 1fr) auto;
    row-gap: var(--space-1);
    padding-inline: var(--space-4);
    align-items: start;
  }
  .chapter-num,
  .chapter-title,
  .chapter-count {
    grid-column: 1;
    justify-self: start;
  }
  .chapter-title {
    line-height: 1.3;
  }
  .chapter-count {
    white-space: normal;
  }
  .chapter-arrow {
    grid-column: 2;
    grid-row: 1 / span 3;
    align-self: center;
  }
  .chapter-body {
    padding-inline: var(--space-4);
  }
  .chapter-list li {
    grid-template-columns: 38px 1fr;
  }
  .gallery-lightbox {
    grid-template-columns: 1fr;
    padding: var(--space-4) var(--space-3) calc(var(--space-12) + var(--space-2));
  }
  .gallery-lightbox-figure {
    width: 100%;
    max-width: 100%;
    max-height: calc(100vh - 6.5rem);
    margin-inline: auto;
  }
  .gallery-lightbox-nav {
    position: absolute;
    top: auto;
    bottom: var(--space-3);
    transform: none;
    z-index: 2;
  }
  .gallery-lightbox-nav.prev {
    left: var(--space-4);
  }
  .gallery-lightbox-nav.next {
    right: var(--space-4);
  }
  .gallery-lightbox-figure img {
    object-fit: cover;
    background: rgba(8, 10, 14, 0.92);
    max-height: none;
    height: min(60vh, 520px);
  }
  .gallery-lightbox-caption-wrap {
    max-height: 28vh;
    overflow: auto;
  }
}
@media (max-width: 560px) {
  .talk-row {
    padding: var(--space-4);
  }
  .chapter-trigger {
    padding: var(--space-3);
    column-gap: var(--space-2);
  }
  .chapter-list li {
    grid-template-columns: 30px 1fr;
    gap: var(--space-2);
    font-size: var(--text-xs);
  }
  .chapter-list li span {
    font-size: var(--text-xs);
  }
  .talk-photo {
    max-height: 170px;
  }
  .talks-stat {
    padding: var(--space-3) var(--space-4);
  }
  .book-hero-cover {
    grid-template-columns: minmax(110px, 40%) minmax(0, 1fr);
    gap: var(--space-2);
  }
  .book-stats {
    grid-template-columns: 1fr;
  }
  .talks-cta-row .btn,
  .home-actions .btn,
  .book-hero-actions .btn,
  .cta-actions .btn {
    width: 100%;
    justify-content: center;
  }
  .gallery-lightbox {
    padding: var(--space-3) var(--space-2) calc(var(--space-10) + var(--space-2));
  }
  .gallery-lightbox-nav.prev {
    left: var(--space-2);
  }
  .gallery-lightbox-nav.next {
    right: var(--space-2);
  }
  .gallery-lightbox-nav,
  .gallery-lightbox-close {
    width: 2.5rem;
    height: 2.5rem;
  }
  .gallery-lightbox-close {
    top: var(--space-2);
    right: var(--space-2);
  }
  .gallery-lightbox-figure img {
    max-height: none;
    height: min(52vh, 420px);
    object-fit: cover;
  }
  .gallery-lightbox-caption-wrap {
    max-height: 32vh;
  }
}

@media (max-width: 380px) {
  .talks-stat {
    padding: var(--space-2) var(--space-3);
  }
  .gallery-lightbox-nav,
  .gallery-lightbox-close {
    width: 2.2rem;
    height: 2.2rem;
    font-size: 0.95rem;
  }
  .gallery-lightbox-figure img {
    max-height: none;
    height: min(46vh, 340px);
  }
  .gallery-lightbox-caption-wrap {
    max-height: 36vh;
    padding: var(--space-3);
  }
  .gallery-lightbox-title {
    font-size: var(--text-xl);
  }
}