/* ═══════════════════════════════════════════════════
   TRENT POWER — Design System
   Shared language with ⚡ What's On in Paris
   VERSION: v5 — changing content requires version bump.
   Never reuse a version number, even for identical content.
   ═══════════════════════════════════════════════════ */

/*
 * Self-hosted fonts — eliminates third-party requests.
 * Run: bash download-fonts.sh (once, from project root)
 *
 * Fallback if fonts not yet downloaded:
 * @import url('https://fonts.googleapis.com/css2?family=IBM+Plex+Mono:ital,wght@0,300;0,400;0,500;0,600;1,300;1,400&family=Newsreader:ital,opsz,wght@0,6..72,300;0,6..72,400;0,6..72,500;0,6..72,600;1,6..72,300;1,6..72,400;1,6..72,500&display=swap');
 */

/* IBM Plex Mono */
@font-face { font-family: 'IBM Plex Mono'; font-style: normal; font-weight: 300; font-display: swap; src: url('/fonts/ibm-plex-mono-300.v14.woff2') format('woff2'); }
@font-face { font-family: 'IBM Plex Mono'; font-style: normal; font-weight: 400; font-display: swap; src: url('/fonts/ibm-plex-mono-400.v14.woff2') format('woff2'); }
@font-face { font-family: 'IBM Plex Mono'; font-style: normal; font-weight: 500; font-display: swap; src: url('/fonts/ibm-plex-mono-500.v14.woff2') format('woff2'); }
@font-face { font-family: 'IBM Plex Mono'; font-style: normal; font-weight: 600; font-display: swap; src: url('/fonts/ibm-plex-mono-600.v14.woff2') format('woff2'); }

/* Newsreader */
@font-face { font-family: 'Newsreader'; font-style: normal; font-weight: 300; font-display: swap; src: url('/fonts/newsreader-300.v14.woff2') format('woff2'); }
@font-face { font-family: 'Newsreader'; font-style: normal; font-weight: 400; font-display: swap; src: url('/fonts/newsreader-400.v14.woff2') format('woff2'); }
@font-face { font-family: 'Newsreader'; font-style: normal; font-weight: 500; font-display: swap; src: url('/fonts/newsreader-500.v14.woff2') format('woff2'); }
@font-face { font-family: 'Newsreader'; font-style: italic; font-weight: 400; font-display: swap; src: url('/fonts/newsreader-400i.v14.woff2') format('woff2'); }

:root {
  color-scheme: light;
  --bg: #F6F4F0;
  --bg2: #EDEAE4;
  --fg: #1F1E1C;
  --fg2: #5C5955;
  --fg3: #706B66;
  --ac: #B54A28;
  --ac2: #D4714F;
  --bd: #D8D4CC;
  --card: #FFFEFA;
  --mono: 'IBM Plex Mono', monospace;
  --serif: 'Newsreader', serif;
}

/* ═══════════════════════════════════════════════════
   RESET & BASE
   ═══════════════════════════════════════════════════ */

*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

::selection {
  background: var(--ac);
  color: var(--bg);
}

html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

@media (prefers-reduced-motion: no-preference) {
  html { scroll-behavior: smooth; }
}

/* Anchor offset for fixed nav (52px height + 8px breathing room) */
[id] {
  scroll-margin-top: 60px;
}

body {
  font-family: var(--mono);
  background: var(--bg);
  color: var(--fg);
  line-height: 1.6;
  overflow-x: hidden;
  font-synthesis: none;
}

/* ═══════════════════════════════════════════════════
   ACCESSIBILITY
   ═══════════════════════════════════════════════════ */

/* Subtle highlight for keyboard-navigated sections */
:target {
  outline-offset: 4px;
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  z-index: 999;
  font-family: var(--mono);
  font-size: 12px;
  padding: 8px 16px;
  background: var(--fg);
  color: var(--bg);
  text-decoration: none;
}

.skip-link:focus {
  left: 8px;
  top: 8px;
}

:focus-visible {
  outline: 2px solid var(--ac);
  outline-offset: 2px;
}

:focus:not(:focus-visible) {
  outline: none;
}

/* ═══════════════════════════════════════════════════
   LAYOUT
   ═══════════════════════════════════════════════════ */

.site {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 clamp(24px, 5vw, 80px);
}

section {
  padding: clamp(80px, 12vh, 160px) 0;
  border-bottom: 1px solid var(--bd);
}

/* Reduce initial paint cost for below-fold sections */
#approach,
#trajectory,
#projects,
#contact {
  content-visibility: auto;
  contain-intrinsic-size: auto 600px;
}

section:last-of-type {
  border-bottom: none;
}

/* ═══════════════════════════════════════════════════
   NAV
   ═══════════════════════════════════════════════════ */

.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: var(--bg);
  border-bottom: 1px solid var(--bd);
  transition: transform 0.3s ease, opacity 0.3s ease;
}

.nav.hidden {
  transform: translateY(-100%);
  opacity: 0;
}

.nav-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 clamp(24px, 5vw, 80px);
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 52px;
}

.nav-mark {
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--fg);
  text-decoration: none;
}

@media (max-width: 600px) {
  .nav-mark { white-space: normal; max-width: 4rem; line-height: 1.2; flex-shrink: 0; }
}
@media (max-width: 480px) {
  .nav-links a { font-size: 0.72em; letter-spacing: 0.04em; }
}

.nav-links {
  display: flex;
  gap: clamp(16px, 3vw, 32px);
  flex-shrink: 1;
  min-width: 0;
}

.nav-links a {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--fg3);
  text-decoration: none;
  transition: color 0.2s;
  position: relative;
  padding: 8px 0;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--ac);
  transition: width 0.25s ease;
}

.nav-links a:hover {
  color: var(--fg);
}

.nav-links a:hover::after {
  width: 100%;
}

/* ═══════════════════════════════════════════════════
   SECTION 1 — HERO / POSITIONING
   ═══════════════════════════════════════════════════ */

.hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding-top: 52px;
  padding-bottom: clamp(60px, 10vh, 120px);
  border-bottom: 1px solid var(--bd);
}

.hero-name {
  font-family: var(--mono);
  font-size: clamp(11px, 1.2vw, 13px);
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--fg3);
  margin-bottom: clamp(24px, 4vh, 48px);
  opacity: 0;
  transform: translateY(12px);
  animation: revealUp 0.8s ease 0.3s forwards;
}

.hero-statement {
  font-family: var(--serif);
  font-size: clamp(28px, 4.5vw, 56px);
  font-weight: 400;
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: var(--fg);
  max-width: 820px;
  margin-bottom: clamp(32px, 5vh, 56px);
  opacity: 0;
  transform: translateY(16px);
  animation: revealUp 0.9s ease 0.5s forwards;
}

.hero-body {
  font-family: var(--serif);
  font-size: clamp(15px, 1.6vw, 19px);
  font-weight: 300;
  line-height: 1.65;
  color: var(--fg2);
  max-width: 580px;
  opacity: 0;
  transform: translateY(12px);
  animation: revealUp 0.8s ease 0.8s forwards;
}

/* ═══════════════════════════════════════════════════
   SECTION LABELS
   ═══════════════════════════════════════════════════ */

.section-label {
  font-family: var(--mono);
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--fg3);
  margin-bottom: clamp(40px, 6vh, 72px);
}

.section-label .label-num {
  color: var(--ac);
  margin-right: 8px;
}

/* ═══════════════════════════════════════════════════
   SECTION 2 — FOCUS & APPROACH
   ═══════════════════════════════════════════════════ */

.principles {
  display: grid;
  gap: 0;
}

.principle {
  padding: clamp(28px, 4vh, 48px) 0;
  border-bottom: 1px solid var(--bd);
  display: grid;
  grid-template-columns: 1fr;
  gap: 8px;
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.principle.visible {
  opacity: 1;
  transform: translateY(0);
}

.principle:last-child {
  border-bottom: none;
}

.principle-title {
  font-family: var(--serif);
  font-size: clamp(18px, 2.4vw, 26px);
  font-weight: 500;
  line-height: 1.25;
  color: var(--fg);
  letter-spacing: -0.01em;
}

.principle-body {
  font-family: var(--serif);
  font-size: clamp(14px, 1.4vw, 17px);
  font-weight: 300;
  line-height: 1.6;
  color: var(--fg2);
  max-width: 560px;
}

@media (min-width: 768px) {
  .principle {
    grid-template-columns: 1fr 1fr;
    gap: clamp(24px, 4vw, 80px);
    align-items: baseline;
  }
}

/* ═══════════════════════════════════════════════════
   SECTION 3 — TRAJECTORY
   ═══════════════════════════════════════════════════ */

.trajectory-grid {
  display: grid;
  gap: 0;
}

.trajectory-chapter {
  padding: clamp(28px, 4vh, 48px) 0;
  border-bottom: 1px solid var(--bd);
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.trajectory-chapter.visible {
  opacity: 1;
  transform: translateY(0);
}

.trajectory-chapter:last-child {
  border-bottom: none;
}

.chapter-label {
  font-family: var(--mono);
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--ac);
}

.chapter-title {
  font-family: var(--serif);
  font-size: clamp(16px, 2vw, 22px);
  font-weight: 500;
  line-height: 1.3;
  color: var(--fg);
}

.chapter-detail {
  font-family: var(--serif);
  font-size: clamp(13px, 1.3vw, 16px);
  font-weight: 300;
  line-height: 1.6;
  color: var(--fg2);
}

.chapter-list {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--fg3);
  line-height: 2;
}

/* Spacing between chapter elements — replaces inline style="" */
.chapter-title + .chapter-detail { margin-top: 6px; }
.chapter-detail + .chapter-detail { margin-top: 8px; }

@media (min-width: 768px) {
  .trajectory-chapter {
    grid-template-columns: 160px 1fr;
    gap: clamp(24px, 4vw, 80px);
  }

  .chapter-label {
    padding-top: 4px;
  }

  .chapter-content {
    max-width: 560px;
  }
}

/* ═══════════════════════════════════════════════════
   SECTION 4 — PERSONAL PROJECTS
   ═══════════════════════════════════════════════════ */

.project-card {
  background: var(--card);
  border: 1px solid var(--bd);
  padding: clamp(32px, 5vw, 56px);
  margin-top: clamp(32px, 5vh, 56px);
  position: relative;
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.project-card.visible {
  opacity: 1;
  transform: translateY(0);
}

.project-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 3px;
  height: 100%;
  background: var(--ac);
}

.project-emoji {
  font-size: 20px;
  margin-bottom: 16px;
  display: block;
  font-family: "Apple Color Emoji", "Segoe UI Emoji", "Noto Color Emoji", sans-serif;
}

.project-name {
  font-family: var(--mono);
  font-size: clamp(14px, 1.6vw, 18px);
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--fg);
  margin-bottom: 12px;
}

.project-desc {
  font-family: var(--serif);
  font-size: clamp(15px, 1.6vw, 19px);
  font-weight: 400;
  line-height: 1.6;
  color: var(--fg2);
  max-width: 520px;
  margin-bottom: 24px;
}

.project-subline {
  font-family: var(--serif);
  font-size: 13px;
  font-style: italic;
  color: var(--fg3);
  margin-bottom: 28px;
}

.project-link {
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ac);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 0;
  border-bottom: 1px solid var(--bd);
  transition: border-color 0.2s, gap 0.2s;
}

.project-link:hover {
  border-color: var(--ac);
  gap: 12px;
}

.project-link .arrow {
  transition: transform 0.2s;
}

.project-link:hover .arrow {
  transform: translateX(2px);
}

/* Button variant — replaces inline style="" for CSP compliance */
.project-link-btn {
  margin-top: 24px;
  background: none;
  border: none;
  border-bottom: 1px solid var(--bd);
  cursor: pointer;
}

/* Project preview — mimics the app UI */
.project-preview {
  margin-top: 32px;
  border-top: 1px solid var(--bd);
  padding-top: 24px;
}

.preview-header {
  font-family: var(--mono);
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--fg3);
  margin-bottom: 16px;
}

.preview-items {
  display: grid;
  gap: 0;
}

.preview-item {
  padding: 10px 0;
  border-bottom: 1px solid var(--bd);
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 16px;
}

.preview-item:last-child {
  border-bottom: none;
}

.preview-title {
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 500;
  color: var(--fg);
}

.preview-meta {
  font-family: var(--mono);
  font-size: 10px;
  color: var(--fg3);
  white-space: nowrap;
}

.preview-editorial {
  font-family: var(--serif);
  font-style: italic;
  font-size: 11px;
  color: var(--fg3);
  margin-top: 2px;
}

.preview-tier {
  font-size: 9px;
  letter-spacing: 0.08em;
  padding: 1px 5px;
  border: 1px solid var(--bd);
  color: var(--fg3);
  margin-right: 6px;
}

.tier-walk { border-color: #6B8F4A; color: #6B8F4A; }
.tier-metro { border-color: var(--ac); color: var(--ac); }

/* ═══════════════════════════════════════════════════
   CONTACT
   ═══════════════════════════════════════════════════ */

.contact {
  padding: clamp(80px, 12vh, 160px) 0 clamp(60px, 8vh, 100px);
}

.contact-email {
  font-family: var(--mono);
  font-size: clamp(14px, 2vw, 22px);
  font-weight: 400;
  color: var(--fg);
  text-decoration: none;
  border-bottom: 1px solid var(--bd);
  padding-bottom: 4px;
  transition: border-color 0.2s;
}

.contact-email:hover {
  border-color: var(--ac);
}

.contact-secondary {
  margin-top: 20px;
}

.contact-secondary a {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--fg3);
  text-decoration: none;
  letter-spacing: 0.04em;
  transition: color 0.2s;
}

.contact-secondary a:hover {
  color: var(--fg);
}

/* ═══════════════════════════════════════════════════
   FOOTER
   ═══════════════════════════════════════════════════ */

.footer {
  padding: 24px 0;
  border-top: 1px solid var(--bd);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
}

.footer-left,
.footer-right {
  font-family: var(--mono);
  font-size: 10px;
  color: var(--fg3);
  letter-spacing: 0.04em;
}

.footer-right a {
  color: var(--fg3);
  text-decoration: none;
  transition: color 0.2s;
  display: inline-block;
  padding: 8px 0;
}

.footer-right a:hover {
  color: var(--fg);
}

/* ═══════════════════════════════════════════════════
   PRIVACY PAGE
   ═══════════════════════════════════════════════════ */

.page {
  padding-top: clamp(80px, 12vh, 140px);
  padding-bottom: clamp(60px, 8vh, 100px);
}

.page-title {
  font-family: var(--serif);
  font-size: clamp(24px, 3.5vw, 40px);
  font-weight: 400;
  line-height: 1.2;
  letter-spacing: -0.02em;
  color: var(--fg);
  margin-bottom: clamp(32px, 5vh, 56px);
}

.page-body {
  max-width: 580px;
}

.page-body p {
  font-family: var(--serif);
  font-size: clamp(14px, 1.4vw, 17px);
  font-weight: 300;
  line-height: 1.7;
  color: var(--fg2);
  margin-bottom: 1.4em;
}

.page-body p:last-child {
  margin-bottom: 0;
}

.page-body a {
  color: var(--fg);
  text-decoration: none;
  border-bottom: 1px solid var(--bd);
  transition: border-color 0.2s;
}

.page-body a:hover {
  border-color: var(--ac);
}

.page-meta {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--fg3);
  letter-spacing: 0.02em;
}

.page-subtitle {
  font-family: var(--serif);
  font-size: clamp(14px, 1.4vw, 17px);
  font-weight: 400;
  color: var(--fg);
  margin-top: 2.5em;
  margin-bottom: 0.5em;
}

.page-back {
  display: inline-block;
  margin-top: clamp(32px, 5vh, 48px);
  font-family: var(--mono);
  font-size: 11px;
  color: var(--fg3);
  text-decoration: none;
  letter-spacing: 0.04em;
  transition: color 0.2s;
}

.page-back:hover {
  color: var(--fg);
}

/* Code blocks */
.code-block {
  position: relative;
}

pre {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  padding: 1em 1.2em;
  color-scheme: light;
  -webkit-appearance: none;
  background-color: #EDEAE4;
  border: 1px solid #D8D4CC;
  border-radius: 4px;
  font-size: 0.65em;
  line-height: 1.7;
  margin: 0;
  color: #1F1E1C;
}

code {
  font-family: 'IBM Plex Mono', monospace;
}

.code-cmd { color: var(--ac); }
.code-str { color: #2563EB; }
.code-var { color: #7C3AED; font-weight: 500; }

.code-copy {
  position: absolute;
  top: 0.4em;
  right: 0.4em;
  background: var(--card);
  border: 1px solid var(--bd);
  border-radius: 3px;
  padding: 0.2em 0.5em;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.6em;
  color: var(--fg3);
  cursor: pointer;
  transition: color 0.15s, border-color 0.15s, background 0.15s;
}

.code-copy:hover {
  color: var(--fg);
  border-color: var(--fg3);
  background: var(--bg);
}

.code-copy:focus-visible {
  outline: 2px solid var(--fg);
  outline-offset: 2px;
}

/* Progressive disclosure */
details {
  margin-top: 0.75em;
}

summary {
  cursor: pointer;
  font-family: var(--serif);
  font-size: clamp(14px, 1.4vw, 17px);
  font-weight: 300;
  line-height: 1.7;
  color: var(--fg);
  text-decoration: none;
  border-bottom: 1px dotted var(--bd);
  display: inline;
  list-style: none;
}

summary::before {
  content: "\25B8";
  display: inline-block;
  margin-right: 0.35em;
  font-size: 0.75em;
  transition: transform 0.2s;
}

details[open] > summary::before {
  transform: rotate(90deg);
}

summary::-webkit-details-marker { display: none; }
summary::marker { display: none; content: ""; }

summary:hover {
  border-bottom-color: var(--ac);
}

/* ═══════════════════════════════════════════════════
   ACCESS MODAL
   ═══════════════════════════════════════════════════ */

.modal-overlay {
  position: fixed;
  inset: 0;
  z-index: 200;
  background: rgba(31, 30, 28, 0);
  backdrop-filter: blur(0);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  pointer-events: none;
  transition: background 0.35s ease, backdrop-filter 0.35s ease;
}

.modal-overlay.active {
  background: rgba(31, 30, 28, 0.4);
  backdrop-filter: blur(6px);
  pointer-events: auto;
}

.modal {
  background: var(--card);
  border: 1px solid var(--bd);
  padding: clamp(32px, 5vw, 48px);
  max-width: 440px;
  width: 100%;
  position: relative;
  opacity: 0;
  transform: translateY(12px);
  transition: opacity 0.3s ease 0.05s, transform 0.3s ease 0.05s;
}

.modal-overlay.active .modal {
  opacity: 1;
  transform: translateY(0);
}

.modal::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 3px;
  height: 100%;
  background: var(--ac);
}

.modal-label {
  font-family: var(--mono);
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--fg3);
  margin-bottom: 20px;
}

.modal-text {
  font-family: var(--serif);
  font-size: clamp(15px, 1.6vw, 18px);
  font-weight: 300;
  line-height: 1.6;
  color: var(--fg2);
  margin-bottom: 28px;
}

.modal-cta {
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.04em;
  color: var(--ac);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 0;
  border-bottom: 1px solid var(--bd);
  transition: border-color 0.2s, gap 0.2s;
}

.modal-cta:hover {
  border-color: var(--ac);
  gap: 12px;
}

.modal-cta .arrow {
  transition: transform 0.2s;
}

.modal-cta:hover .arrow {
  transform: translateX(2px);
}

.modal-close {
  display: block;
  margin-top: 28px;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.06em;
  color: var(--fg3);
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px 4px;
  transition: color 0.2s;
}

.modal-close:hover {
  color: var(--fg);
}

/* ═══════════════════════════════════════════════════
   ANIMATIONS
   ═══════════════════════════════════════════════════ */

@keyframes revealUp {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ═══════════════════════════════════════════════════
   REDUCED MOTION
   ═══════════════════════════════════════════════════ */

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }

  .hero-name,
  .hero-statement,
  .hero-body,
  .principle,
  .trajectory-chapter,
  .project-card {
    opacity: 1;
    transform: none;
  }
}

/* ═══════════════════════════════════════════════════
   PRINT
   ═══════════════════════════════════════════════════ */

@media print {
  .nav { display: none; }
  section { padding: 40px 0; }
  .hero { min-height: auto; }
}

/* ─── Language toggle ─────────────────────────────── */
.lang-toggle {
  background: none;
  border: none;
  cursor: pointer;
  font-family: inherit;
  font-size: inherit;
  color: inherit;
  opacity: 0.5;
  padding: 0;
  margin-right: 1rem;
  letter-spacing: 0.05em;
  transition: opacity 0.2s;
  text-decoration: none;
}
.lang-toggle:hover { opacity: 1; }
.lang-toggle:focus-visible {
  outline: 2px solid var(--fg);
  outline-offset: 2px;
}

/* ── Security page bullet lists ── */
ul.i18n-list {
  font-family: var(--serif, 'Newsreader', Georgia, serif) !important;
  font-size: 1rem !important;
  font-weight: 300;
  line-height: 1.6;
  list-style: disc;
  padding-left: 1.25rem;
  margin: 0.5rem 0 1rem;
}
ul.i18n-list li {
  font-family: var(--serif, 'Newsreader', Georgia, serif) !important;
  font-size: 1rem !important;
  font-weight: 300;
  line-height: 1.6;
  margin-bottom: 0.2rem;
}
details p[data-i18n$="_heading"],
details strong[data-i18n$="_heading"] {
  font-family: var(--serif, 'Newsreader', Georgia, serif) !important;
  font-size: 0.9rem;
  font-weight: 400;
  color: var(--fg-muted, #888);
  margin: 1rem 0 0.2rem;
}

/* ── Language strip picker ── */
.lang-picker {
  position: relative;
  display: inline-flex;
  align-items: center;
}

#lang-toggle {
  background: none;
  border: none;
  cursor: pointer;
  font-family: inherit;
  font-size: inherit;
  color: inherit;
  opacity: 0.5;
  padding: 0;
  margin-right: 1rem;
  letter-spacing: 0.05em;
  transition: opacity 0.2s;
}
#lang-toggle:hover { opacity: 1; }
#lang-toggle:focus-visible {
  outline: 2px solid var(--fg);
  outline-offset: 2px;
}

.lang-strip {
  position: absolute;
  bottom: calc(100% + 14px);
  left: 50%;
  transform: translateX(-50%) translateY(8px);
  display: flex;
  gap: 1.25rem;
  align-items: center;
  background: var(--fg, #1a1a1a);
  padding: 10px 18px;
  opacity: 0;
  pointer-events: none;
  transition:
    opacity 180ms cubic-bezier(0.4, 0, 0.2, 1),
    transform 180ms cubic-bezier(0.4, 0, 0.2, 1);
  z-index: 100;
  white-space: nowrap;
}
.lang-strip::after {
  content: '';
  position: absolute;
  bottom: -5px;
  left: 50%;
  transform: translateX(-50%) rotate(45deg);
  width: 10px;
  height: 10px;
  background: var(--fg, #1a1a1a);
}
.lang-strip.open {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
  pointer-events: auto;
}
.lang-strip button {
  background: none;
  border: none;
  cursor: pointer;
  font-family: inherit;
  font-size: 11px;
  letter-spacing: 0.1em;
  color: rgba(246, 244, 240, 0.45);
  padding: 0;
  transition: color 180ms;
  white-space: nowrap;
}
.lang-strip button:hover { color: #F6F4F0; }
.lang-strip button.lang-strip-active {
  color: #F6F4F0;
  font-weight: 700;
}

/* ── Trajectory education list ── */
.trajectory-chapter ul { list-style: none; padding-left: 0; }