/* ==========================================================================
   Mathieu Desterbecq — Portfolio — Design tokens & base
   Identité "Ink & Brass" : graphite quasi-noir + blanc chaud + accent laiton.
   ========================================================================== */

:root {
  --font-sans: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI Variable Display", "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, "SF Mono", Consolas, "Liberation Mono", Menlo, monospace;

  --fs-display: clamp(2.5rem, 1.9rem + 3vw, 4.75rem);
  --fs-h1: clamp(2.1rem, 1.7rem + 1.8vw, 3.25rem);
  --fs-h2: clamp(1.6rem, 1.4rem + 1vw, 2.25rem);
  --fs-h3: clamp(1.2rem, 1.1rem + 0.4vw, 1.4rem);
  --fs-body-lg: 1.125rem;
  --fs-body: 1rem;
  --fs-small: 0.875rem;
  --fs-micro: 0.75rem;

  --lh-tight: 1.1;
  --lh-snug: 1.3;
  --lh-normal: 1.6;

  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.5rem;
  --space-6: 2rem;
  --space-7: 3rem;
  --space-8: 4rem;
  --space-9: 6rem;
  --space-10: 8rem;

  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 18px;
  --radius-full: 999px;

  --container: 1180px;
  --ease: cubic-bezier(0.16, 1, 0.3, 1);
  --dur: 0.5s;

  color-scheme: dark;
  --bg: #0a0b0d;
  --bg-elevated: #101217;
  --bg-card: #14161b;
  --bg-card-hover: #191c22;
  --border: #23262c;
  --border-strong: #616770;
  --border-soft: #1a1c21;
  --text-primary: #f3f1ec;
  --text-secondary: #a9a8a3;
  --text-tertiary: #93918a;
  --accent: #c7a159;
  --accent-strong: #e4c077;
  --accent-surface: var(--accent);
  --accent-ink: #1a1408;
  --accent-soft: rgba(199, 161, 89, 0.12);
  --success: #5db98a;
  --shadow-card: 0 1px 0 rgba(255, 255, 255, 0.03) inset, 0 20px 40px -20px rgba(0, 0, 0, 0.6);
}

:root[data-theme="light"] {
  color-scheme: light;
  --bg: #fbfaf7;
  --bg-elevated: #f3f1ea;
  --bg-card: #ffffff;
  --bg-card-hover: #faf8f3;
  --border: #e6e2d6;
  --border-strong: #867f72;
  --border-soft: #eeece3;
  --text-primary: #17181b;
  --text-secondary: #52504a;
  --text-tertiary: #6f6c63;
  --accent: #856520;
  --accent-strong: #6b5119;
  --accent-surface: #17181b;
  --accent-ink: #f3f1ec;
  --accent-soft: rgba(133, 101, 32, 0.1);
  --success: #2f8f63;
  --shadow-card: 0 1px 0 rgba(255, 255, 255, 0.6) inset, 0 20px 40px -24px rgba(23, 24, 27, 0.18);
}

@media (prefers-color-scheme: light) {
  :root:not([data-theme="dark"]) {
    color-scheme: light;
    --bg: #fbfaf7;
    --bg-elevated: #f3f1ea;
    --bg-card: #ffffff;
    --bg-card-hover: #faf8f3;
    --border: #e6e2d6;
    --border-strong: #867f72;
    --border-soft: #eeece3;
    --text-primary: #17181b;
    --text-secondary: #52504a;
    --text-tertiary: #6f6c63;
    --accent: #856520;
    --accent-strong: #6b5119;
    --accent-surface: #17181b;
    --accent-ink: #f3f1ec;
    --accent-soft: rgba(133, 101, 32, 0.1);
    --success: #2f8f63;
    --shadow-card: 0 1px 0 rgba(255, 255, 255, 0.6) inset, 0 20px 40px -24px rgba(23, 24, 27, 0.18);
  }
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: 0.001ms !important; animation-iteration-count: 1 !important; transition-duration: 0.001ms !important; scroll-behavior: auto !important; }
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: var(--fs-body);
  line-height: var(--lh-normal);
  -webkit-font-smoothing: antialiased;
}
html[data-theme-anim] body {
  transition: background var(--dur) var(--ease), color var(--dur) var(--ease);
}

::selection { background: var(--accent); color: var(--accent-ink); }

img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }

h1, h2, h3, h4, p, ul, ol, figure { margin: 0; }
ul { padding: 0; list-style: none; }

.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--space-5);
}
@media (min-width: 640px) { .container { padding-inline: var(--space-7); } }

section { padding-block: var(--space-9); }
@media (max-width: 640px) { section { padding-block: var(--space-8); } }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-mono);
  font-size: var(--fs-micro);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: var(--space-4);
}
.eyebrow::before {
  content: "";
  width: 18px;
  height: 1px;
  background: var(--accent);
}

.section-head {
  max-width: 640px;
  margin-bottom: var(--space-8);
}
.section-head h2 {
  font-size: var(--fs-h2);
  font-weight: 650;
  letter-spacing: -0.01em;
  line-height: var(--lh-tight);
}
.section-head p {
  margin-top: var(--space-3);
  color: var(--text-secondary);
  font-size: var(--fs-body-lg);
}

h1, h2, h3, h4 { line-height: var(--lh-tight); text-wrap: balance; }
.pillar-card h3, .case-body h3, .timeline-body h3, .edu-card h3 { line-height: 1.2; }
.contact-card h2 { line-height: 1.05; }
p, li { text-wrap: pretty; }

.prose { max-width: 72ch; font-size: var(--fs-body-lg); color: var(--text-secondary); }
.prose + .prose { margin-top: var(--space-4); }

.profil-layout { display: grid; gap: var(--space-6); }
@media (min-width: 900px) {
  .profil-layout { grid-template-columns: 1.4fr 0.9fr; gap: var(--space-8); align-items: start; }
}
.principles-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  box-shadow: var(--shadow-card);
}
.principles-card h3 {
  font-family: var(--font-mono);
  font-size: var(--fs-micro);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-tertiary);
  margin-bottom: var(--space-4);
}
.principles-card ul { display: flex; flex-direction: column; gap: var(--space-3); }
.principles-card li { font-size: var(--fs-small); color: var(--text-secondary); padding-left: var(--space-5); position: relative; }
.principles-card li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.5em;
  width: 6px;
  height: 6px;
  background: var(--accent);
  transform: rotate(45deg);
}

/* Skip link */
.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--accent);
  color: var(--accent-ink);
  padding: var(--space-3) var(--space-4);
  z-index: 200;
  border-radius: var(--radius-sm);
}
.skip-link:focus { left: var(--space-4); top: var(--space-4); }

:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 4px; }

/* Placeholder marker — visible in review builds so factual gaps aren't missed.
   Underline (not a border-box) so it hugs the text instead of stretching to
   fill whatever block/card happens to contain it. Colour is left untouched:
   most placeholders (numbers, tags, dates) already render in --accent via
   their own component style; headings/paragraphs keep their normal colour
   so a placeholder heading doesn't read as a different heading style. */
.tbd {
  cursor: help;
  text-decoration: underline dashed color-mix(in srgb, var(--accent) 70%, transparent);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.25em;
  text-decoration-skip-ink: none;
}
.hero-meta-item .num.tbd,
.stat-card .num.tbd,
.timeline-date.tbd {
  white-space: nowrap;
}

/* ==========================================================================
   i18n — bilingual toggle via [lang] on <html>
   ========================================================================== */
html:not([lang="en"]) [data-lang="en"] { display: none !important; }
html[lang="en"] [data-lang="fr"] { display: none !important; }

/* ==========================================================================
   Buttons
   ========================================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: 0.85rem 1.5rem;
  border-radius: var(--radius-full);
  font-size: var(--fs-small);
  font-weight: 600;
  letter-spacing: 0.01em;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.25s var(--ease), background 0.25s var(--ease), border-color 0.25s var(--ease), color 0.25s var(--ease);
}
.btn:hover { transform: translateY(-2px); }
.btn-primary { background: var(--accent-surface); color: var(--accent-ink); }
.btn-primary:hover { background: var(--accent-strong); }
.btn-ghost { background: transparent; border-color: var(--border-strong); color: var(--text-primary); }
.btn-ghost:hover { border-color: var(--accent); color: var(--accent-strong); }

/* ==========================================================================
   Header / Nav
   ========================================================================== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--bg);
  background: color-mix(in srgb, var(--bg) 82%, transparent);
  backdrop-filter: blur(14px) saturate(140%);
  border-bottom: 1px solid var(--border-soft);
}
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-block: var(--space-4);
}
.brand {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-weight: 700;
  font-size: var(--fs-body);
}
.brand-mark {
  width: 34px;
  height: 34px;
  border-radius: 9px;
  background: linear-gradient(155deg, var(--accent-surface), var(--accent-strong));
  color: var(--accent-ink);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 0.8rem;
  letter-spacing: -0.02em;
}
.brand-text { display: flex; flex-direction: column; line-height: 1.15; }
.brand-text small { font-weight: 500; color: var(--text-tertiary); font-size: var(--fs-micro); }

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-6);
}
.nav-links a {
  font-size: var(--fs-small);
  color: var(--text-secondary);
  font-weight: 500;
  transition: color 0.2s var(--ease);
  position: relative;
}
.nav-links a:hover { color: var(--text-primary); }
.nav-links a.active { color: var(--accent); }

.nav-tools { display: flex; align-items: center; gap: var(--space-3); }

.icon-btn {
  width: 38px;
  height: 38px;
  border-radius: var(--radius-full);
  border: 1px solid var(--border-strong);
  background: var(--bg-card);
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: border-color 0.2s var(--ease), color 0.2s var(--ease);
}
.icon-btn:hover { border-color: var(--accent); color: var(--accent); }
.icon-btn svg { width: 17px; height: 17px; }

.lang-switch {
  display: flex;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-full);
  overflow: hidden;
  font-family: var(--font-mono);
  font-size: var(--fs-micro);
}
.lang-switch button {
  background: var(--bg-card);
  color: var(--text-secondary);
  border: none;
  padding: 0.55rem 0.8rem;
  cursor: pointer;
  font-family: inherit;
  font-size: inherit;
  font-weight: 600;
  transition: background 0.2s var(--ease), color 0.2s var(--ease);
}
.lang-switch button[aria-pressed="true"] { background: var(--accent-surface); color: var(--accent-ink); }

.nav-toggle {
  display: none;
  width: 38px;
  height: 38px;
  border-radius: var(--radius-full);
  border: 1px solid var(--border-strong);
  background: var(--bg-card);
  align-items: center;
  justify-content: center;
  cursor: pointer;
}
.nav-toggle svg { width: 18px; height: 18px; }

@media (max-width: 560px) {
  .brand-text { display: none; }
}

@media (max-width: 860px) {
  .nav-links { display: none; }
  .nav-toggle { display: flex; }
  .nav.is-open .nav-links {
    display: flex;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    background: var(--bg-elevated);
    border-bottom: 1px solid var(--border);
    padding: var(--space-4) var(--space-5) var(--space-6);
  }
  .nav.is-open .nav-links a { padding: var(--space-3) 0; width: 100%; }
  .nav.is-open .nav-links { box-shadow: 0 24px 40px -20px rgba(0, 0, 0, 0.55); }
  body:has(.nav.is-open) { overflow: hidden; }
}

/* ==========================================================================
   Hero
   ========================================================================== */
.hero {
  position: relative;
  padding-top: var(--space-8);
  padding-bottom: var(--space-8);
  overflow: hidden;
}
.hero-grid {
  position: absolute;
  inset: 0;
  z-index: 0;
  opacity: 0.55;
  pointer-events: none;
  background-image:
    radial-gradient(circle at 82% 18%, color-mix(in srgb, var(--accent) 30%, transparent), transparent 55%),
    linear-gradient(color-mix(in srgb, var(--text-primary) 6%, transparent) 1px, transparent 1px),
    linear-gradient(90deg, color-mix(in srgb, var(--text-primary) 6%, transparent) 1px, transparent 1px);
  background-size: auto, 56px 56px, 56px 56px;
  -webkit-mask-image: linear-gradient(to bottom, black, transparent 85%);
  mask-image: linear-gradient(to bottom, black, transparent 85%);
}
:root[data-theme="light"] .hero-grid { opacity: 0.35; }
@media (prefers-color-scheme: light) {
  :root:not([data-theme="dark"]) .hero-grid { opacity: 0.35; }
}
.hero-inner { position: relative; z-index: 1; }

.hero-kicker {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  border: 1px solid var(--border);
  border-radius: var(--radius-full);
  background: var(--bg-card);
  font-family: var(--font-mono);
  font-size: var(--fs-micro);
  color: var(--text-secondary);
  margin-bottom: var(--space-6);
}
.hero-kicker .dot { width: 7px; height: 7px; border-radius: 50%; background: var(--success); box-shadow: 0 0 0 3px color-mix(in srgb, var(--success) 25%, transparent); }

.hero-name {
  font-family: var(--font-mono);
  font-size: var(--fs-small);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: var(--space-3);
}

.hero h1 {
  font-size: clamp(2.1rem, 1.5rem + 2.3vw, 3.4rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.15;
  max-width: 24ch;
}
.hero h1 .accent-text { color: var(--accent); }

.hero-lede {
  margin-top: var(--space-4);
  font-size: var(--fs-body-lg);
  color: var(--text-secondary);
  max-width: 56ch;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
  margin-top: var(--space-6);
}

.hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-6);
  margin-top: var(--space-7);
  padding-top: var(--space-5);
  border-top: 1px solid var(--border-soft);
}
.hero-meta-item { display: flex; flex-direction: column; gap: 0.2rem; }
.hero-meta-item .num { font-family: var(--font-mono); font-size: var(--fs-h3); font-weight: 700; color: var(--accent); }
.hero-meta-item .label { font-size: var(--fs-small); color: var(--text-tertiary); }

/* ==========================================================================
   Expertise pillars
   ========================================================================== */
.pillars-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--space-5);
}
.pillar-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  box-shadow: var(--shadow-card);
  transition: transform 0.35s var(--ease), border-color 0.35s var(--ease), background 0.35s var(--ease);
}
.pillar-card:hover { transform: translateY(-4px); border-color: color-mix(in srgb, var(--accent) 45%, var(--border)); background: var(--bg-card-hover); }
.pillar-icon {
  width: 46px;
  height: 46px;
  border-radius: var(--radius-md);
  background: var(--accent-soft);
  color: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-5);
}
.pillar-icon svg { width: 22px; height: 22px; }
.pillar-card h3 { font-size: var(--fs-h3); font-weight: 650; letter-spacing: -0.01em; }
.pillar-card ul { margin-top: var(--space-4); display: flex; flex-direction: column; gap: var(--space-2); }
.pillar-card li {
  font-size: var(--fs-small);
  color: var(--text-secondary);
  padding-left: var(--space-5);
  position: relative;
}
.pillar-card li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.5em;
  width: 6px;
  height: 6px;
  border-radius: 1px;
  background: var(--accent);
  transform: rotate(45deg);
}

/* ==========================================================================
   Timeline
   ========================================================================== */
.timeline { display: flex; flex-direction: column; }
.timeline-item {
  display: grid;
  grid-template-columns: 140px 24px 1fr;
  gap: var(--space-5);
  padding-block: var(--space-6);
  border-bottom: 1px solid var(--border-soft);
}
.timeline-item:last-child { border-bottom: none; padding-bottom: 0; }
.timeline-item:first-child { padding-top: 0; }
.timeline-date {
  font-family: var(--font-mono);
  font-size: var(--fs-small);
  color: var(--text-tertiary);
  padding-top: 0.2rem;
}
.timeline-rail { display: flex; flex-direction: column; align-items: center; }
.timeline-dot { width: 12px; height: 12px; border-radius: 50%; background: var(--accent); margin-top: 0.35rem; flex-shrink: 0; }
.timeline-line { flex: 1; width: 1px; background: var(--border); margin-top: var(--space-2); }
.timeline-body h3 { font-size: var(--fs-h3); font-weight: 650; }
.timeline-body .org { color: var(--accent); font-size: var(--fs-small); font-weight: 600; margin-top: 0.2rem; display: block; }
.timeline-body p { margin-top: var(--space-3); color: var(--text-secondary); font-size: var(--fs-body); max-width: 62ch; }

@media (max-width: 640px) {
  .timeline-item { grid-template-columns: 20px 1fr; }
  .timeline-date { grid-column: 1 / -1; order: -1; padding-top: 0; margin-bottom: var(--space-2); }
}

/* ==========================================================================
   Stats / achievements
   ========================================================================== */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}
.stat-card { background: var(--bg-card); padding: var(--space-6); }
.stat-card .num {
  font-family: var(--font-mono);
  font-size: clamp(2rem, 1.7rem + 1vw, 2.75rem);
  font-weight: 700;
  color: var(--accent);
  letter-spacing: -0.01em;
  display: block;
}
.stat-card .num .unit { font-size: 0.45em; margin-left: 0.2em; opacity: 0.8; letter-spacing: 0; }
.stat-card .desc { margin-top: var(--space-2); color: var(--text-secondary); font-size: var(--fs-small); }

/* ==========================================================================
   Réalisations — banded section for visual rhythm
   ========================================================================== */
#realisations {
  background: var(--bg-elevated);
  border-block: 1px solid var(--border-soft);
}
#realisations .section-head { max-width: 720px; margin-inline: auto; text-align: center; }
#realisations .eyebrow::before { display: none; }

/* ==========================================================================
   Case studies
   ========================================================================== */
.cases-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: var(--space-6);
}
@media (min-width: 1024px) {
  .cases-grid { grid-template-columns: repeat(2, 1fr); }
}
.case-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  display: flex;
  flex-direction: column;
  transition: transform 0.35s var(--ease), border-color 0.35s var(--ease);
}
.case-card:hover { transform: translateY(-4px); border-color: color-mix(in srgb, var(--accent) 45%, var(--border)); }
.case-visual {
  height: 128px;
  position: relative;
  display: flex;
  align-items: flex-end;
  justify-content: flex-start;
  padding: var(--space-5);
  background:
    radial-gradient(120% 150% at 12% 0%, var(--accent-soft), transparent 62%),
    linear-gradient(color-mix(in srgb, var(--text-primary) 5%, transparent) 1px, transparent 1px) 0 0 / 100% 20px,
    var(--bg-elevated);
  border-bottom: 1px solid var(--border-soft);
}
.case-visual svg { width: 40px; height: 40px; opacity: 0.9; }
.case-body { padding: var(--space-6); display: flex; flex-direction: column; gap: var(--space-3); flex: 1; }
.case-tag { font-family: var(--font-mono); font-size: var(--fs-micro); color: var(--accent); text-transform: uppercase; letter-spacing: 0.08em; }
.case-body h3 { font-size: var(--fs-h3); font-weight: 650; }
.case-body p { color: var(--text-secondary); font-size: var(--fs-small); }
.case-stack { display: flex; flex-wrap: wrap; gap: var(--space-2); margin-top: auto; padding-top: var(--space-4); }
.chip {
  font-family: var(--font-mono);
  font-size: var(--fs-micro);
  padding: 0.3rem 0.6rem;
  border-radius: var(--radius-sm);
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  color: var(--text-secondary);
}

/* ==========================================================================
   Skills
   ========================================================================== */
.skills-wrap { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: var(--space-7); }
@media (min-width: 1024px) {
  .skills-wrap { grid-template-columns: repeat(2, 1fr); column-gap: var(--space-9); }
}
.skills-group h3 {
  font-family: var(--font-mono);
  font-size: var(--fs-micro);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-tertiary);
  margin-bottom: var(--space-4);
}
.skills-tags { display: flex; flex-wrap: wrap; gap: var(--space-2); }
.skills-tags .chip { padding: 0.5rem 0.85rem; font-size: var(--fs-small); font-family: var(--font-sans); font-weight: 500; color: var(--text-primary); }
.chip.tbd { opacity: 0.7; }
.chip.tbd::after { content: "\2022"; margin-left: 0.4em; color: var(--accent); text-decoration: none; }

/* ==========================================================================
   Education
   ========================================================================== */
.edu-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: var(--space-5); }
.edu-card { border: 1px solid var(--border); border-radius: var(--radius-lg); padding: var(--space-6); background: var(--bg-card); }
.edu-card .year { font-family: var(--font-mono); font-size: var(--fs-micro); color: var(--accent); }
.edu-card h3 { margin-top: var(--space-2); font-size: var(--fs-body-lg); font-weight: 650; }
.edu-card p { margin-top: var(--space-1); color: var(--text-secondary); font-size: var(--fs-small); }

/* ==========================================================================
   Contact
   ========================================================================== */
.contact-section { position: relative; }
.contact-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-9) var(--space-7);
  text-align: center;
  box-shadow: var(--shadow-card);
}
.contact-card h2 { font-size: var(--fs-h1); font-weight: 700; letter-spacing: -0.02em; max-width: 22ch; margin-inline: auto; }
.contact-card p { margin-top: var(--space-4); color: var(--text-secondary); font-size: var(--fs-body-lg); max-width: 50ch; margin-inline: auto; }
.contact-actions { display: flex; flex-wrap: wrap; justify-content: center; gap: var(--space-4); margin-top: var(--space-7); }
.contact-links { display: flex; flex-wrap: wrap; justify-content: center; gap: var(--space-6); margin-top: var(--space-7); padding-top: var(--space-6); border-top: 1px solid var(--border-soft); }
.contact-links a { display: flex; align-items: center; gap: var(--space-2); font-size: var(--fs-small); color: var(--text-secondary); transition: color 0.2s var(--ease); }
.contact-links a:hover { color: var(--accent); }
.contact-links svg { width: 16px; height: 16px; }

/* ==========================================================================
   Footer
   ========================================================================== */
.site-footer { border-top: 1px solid var(--border-soft); padding-block: var(--space-6); }
.footer-inner { display: flex; flex-wrap: wrap; justify-content: space-between; gap: var(--space-4); align-items: center; }
.footer-inner p { color: var(--text-tertiary); font-size: var(--fs-small); }
.footer-inner a { color: var(--text-tertiary); }
.footer-inner a:hover { color: var(--accent); }

/* ==========================================================================
   Reveal-on-scroll
   ========================================================================== */
[data-reveal] { opacity: 0; transform: translateY(18px); transition: opacity 0.7s var(--ease), transform 0.7s var(--ease); }
[data-reveal].is-visible { opacity: 1; transform: translateY(0); }

/* ==========================================================================
   Draft banner (remove before going fully live if placeholders remain)
   ========================================================================== */
.draft-banner {
  background: var(--accent-surface);
  color: var(--accent-ink);
  text-align: center;
  font-size: var(--fs-small);
  font-weight: 600;
  padding: var(--space-3) var(--space-5);
}
:root[data-theme="light"] .draft-banner {
  background: var(--bg-elevated);
  color: var(--accent-strong);
  border-bottom: 1px solid var(--accent);
}
@media (prefers-color-scheme: light) {
  :root:not([data-theme="dark"]) .draft-banner {
    background: var(--bg-elevated);
    color: var(--accent-strong);
    border-bottom: 1px solid var(--accent);
  }
}