/* ============================================================
   Portfolio Thibault Nonnotte — système de design
   Minimalisme éditorial × soft-futurism
   Geist / Geist Mono · cobalt → violet · clair & sombre
   ============================================================ */

:root {
  --radius: 20px;
  --radius-sm: 12px;
  --radius-xs: 8px;
  --hue-a: 27;             /* rouge racing */
  --hue-b: 32;             /* rouge chaud (rapproché du rouge) */
  --aurora-o: 1;
  --font-sans: "Geist", "Helvetica Neue", Helvetica, sans-serif;
  --font-mono: "Geist Mono", ui-monospace, "SF Mono", monospace;
  --page-max: 1240px;
}

html[data-theme="light"] {
  color-scheme: light;
  --bg: oklch(97.6% 0.005 255);
  --bg-raised: oklch(99% 0.003 255);
  --ink: oklch(21% 0.022 266);
  --ink-2: oklch(43% 0.02 266);
  --ink-3: oklch(58% 0.016 266);
  --card: rgba(255, 255, 255, 0.6);
  --card-strong: rgba(255, 255, 255, 0.88);
  --surface-solid: oklch(99.2% 0.003 255);
  --line: oklch(21% 0.022 266 / 0.09);
  --line-strong: oklch(21% 0.022 266 / 0.16);
  --accent: oklch(50% 0.23 var(--hue-a));
  --accent-2: oklch(54% 0.23 var(--hue-b));
  --accent-ink: oklch(42% 0.21 var(--hue-a));
  --accent-soft: oklch(50% 0.23 var(--hue-a) / 0.09);
  --on-accent: oklch(99% 0.002 255);
  --aurora-1: oklch(62% 0.16 var(--hue-a) / 0.16);
  --aurora-2: oklch(66% 0.17 var(--hue-b) / 0.13);
  --shadow-soft: 0 1px 2px oklch(25% 0.04 266 / 0.04), 0 16px 40px -16px oklch(28% 0.06 266 / 0.14);
  --shadow-pop: 0 2px 6px oklch(25% 0.04 266 / 0.06), 0 24px 56px -20px oklch(30% 0.08 266 / 0.22);
}

html[data-theme="dark"] {
  color-scheme: dark;
  --bg: oklch(16.5% 0.022 268);
  --bg-raised: oklch(20% 0.024 268);
  --ink: oklch(94.5% 0.008 262);
  --ink-2: oklch(73% 0.014 264);
  --ink-3: oklch(56% 0.016 266);
  --card: rgba(255, 255, 255, 0.045);
  --card-strong: rgba(255, 255, 255, 0.09);
  --surface-solid: oklch(21.5% 0.026 270);
  --line: rgba(255, 255, 255, 0.09);
  --line-strong: rgba(255, 255, 255, 0.17);
  --accent: oklch(71% 0.165 var(--hue-a));
  --accent-2: oklch(73% 0.17 var(--hue-b));
  --accent-ink: oklch(78% 0.14 var(--hue-a));
  --accent-soft: oklch(71% 0.165 var(--hue-a) / 0.13);
  --on-accent: oklch(15% 0.03 268);
  --aurora-1: oklch(55% 0.18 var(--hue-a) / 0.2);
  --aurora-2: oklch(58% 0.19 var(--hue-b) / 0.16);
  --shadow-soft: 0 1px 2px rgba(0, 0, 0, 0.3), 0 16px 40px -16px rgba(0, 0, 0, 0.5);
  --shadow-pop: 0 2px 6px rgba(0, 0, 0, 0.35), 0 24px 56px -20px rgba(0, 0, 0, 0.6);
}

/* ------------------------------------------------ base */
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  transition: background-color 0.35s ease, color 0.35s ease;
}
::selection { background: oklch(60% 0.2 var(--hue-a) / 0.25); }

a { color: inherit; }
img { max-width: 100%; display: block; }

/* aurora mesh — fond fixe très doux */
.aurora {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  opacity: var(--aurora-o);
  background:
    radial-gradient(42% 38% at 12% 4%, var(--aurora-1), transparent 70%),
    radial-gradient(38% 34% at 88% 12%, var(--aurora-2), transparent 70%),
    radial-gradient(50% 40% at 70% 96%, var(--aurora-1), transparent 72%);
  filter: blur(28px);
  transition: opacity 0.4s ease;
}

.page {
  max-width: var(--page-max);
  margin: 0 auto;
  padding: 0 48px;
}

/* ------------------------------------------------ typo */
.display {
  font-weight: 600;
  letter-spacing: -0.035em;
  line-height: 1.02;
  margin: 0;
  text-wrap: balance;
}
.h-section {
  font-size: clamp(32px, 4vw, 52px);
  font-weight: 600;
  letter-spacing: -0.03em;
  line-height: 1.06;
  margin: 0;
  text-wrap: balance;
}
.lede {
  font-size: clamp(17px, 1.4vw, 20px);
  line-height: 1.65;
  color: var(--ink-2);
  text-wrap: pretty;
  margin: 0;
}
.mono-label {
  font-family: var(--font-mono);
  font-size: 11.5px;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-3);
}
.mono-label .dot {
  display: inline-block;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  margin-right: 9px;
  vertical-align: 1px;
}
.grad-text {
  background: linear-gradient(110deg, var(--accent), var(--accent-2));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  font-style: italic;      /* écho de l'inclinaison du monogramme */
  display: inline-block;   /* la boîte englobe le débord de l'italique */
  padding-right: 0.14em;   /* évite que le « e » / dernière lettre soit rognée */
}

/* ------------------------------------------------ boutons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-sans);
  font-size: 15px;
  font-weight: 500;
  letter-spacing: -0.01em;
  text-decoration: none;
  border-radius: 999px;
  padding: 13px 26px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.18s ease, box-shadow 0.18s ease, background-color 0.18s ease, border-color 0.18s ease;
}
.btn:active { transform: translateY(1px) scale(0.99); }
.btn .arrow { transition: transform 0.18s ease; font-size: 14px; }
.btn:hover .arrow { transform: translateX(3px); }

.btn-primary {
  background: linear-gradient(115deg, var(--accent), var(--accent-2));
  color: var(--on-accent);
  box-shadow: 0 8px 24px -8px oklch(55% 0.22 var(--hue-a) / 0.5);
}
.btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 14px 32px -10px oklch(55% 0.22 var(--hue-a) / 0.6);
}
.btn-ghost {
  background: var(--card);
  border-color: var(--line-strong);
  color: var(--ink);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
}
.btn-ghost:hover { border-color: var(--accent); color: var(--accent-ink); }

/* ------------------------------------------------ badges & chips */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent-ink);
  background: var(--accent-soft);
  border: 1px solid oklch(55% 0.2 var(--hue-a) / 0.22);
  border-radius: 999px;
  padding: 6px 14px;
}
.badge .pulse {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 0 oklch(60% 0.2 var(--hue-a) / 0.5);
}
@media (prefers-reduced-motion: no-preference) {
  .badge .pulse { animation: pulse 2.4s ease-out infinite; }
  @keyframes pulse {
    0% { box-shadow: 0 0 0 0 oklch(60% 0.2 var(--hue-a) / 0.45); }
    70% { box-shadow: 0 0 0 8px oklch(60% 0.2 var(--hue-a) / 0); }
    100% { box-shadow: 0 0 0 0 oklch(60% 0.2 var(--hue-a) / 0); }
  }
}
.chip {
  display: inline-flex;
  align-items: center;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.02em;
  color: var(--ink-2);
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 5px 12px;
  white-space: nowrap;
}

/* ------------------------------------------------ cartes (glass) */
.card {
  position: relative;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  -webkit-backdrop-filter: blur(20px) saturate(140%);
  backdrop-filter: blur(20px) saturate(140%);
  box-shadow: var(--shadow-soft);
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
}
.card-hover:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-pop);
  border-color: var(--line-strong);
}

/* carte mise en avant — fond opaque + bordure dégradé fine */
.comp-featured {
  background:
    linear-gradient(var(--surface-solid), var(--surface-solid)) padding-box,
    linear-gradient(130deg, var(--accent), var(--accent-2)) border-box;
  border: 1.5px solid transparent;
}

/* ------------------------------------------------ jauge niveau (segments) */
.level {
  display: flex;
  align-items: center;
  gap: 10px;
}
.level .segs { display: flex; gap: 5px; }
.level .seg {
  width: 26px;
  height: 5px;
  border-radius: 999px;
  background: var(--line-strong);
}
.level .seg.on {
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
}
.level .lv-txt {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--ink-3);
}

/* ------------------------------------------------ placeholder visuel */
.ph {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-sm);
  background:
    repeating-linear-gradient(-45deg,
      oklch(55% 0.06 var(--hue-a) / 0.07) 0 10px,
      transparent 10px 20px),
    linear-gradient(135deg, var(--accent-soft), oklch(60% 0.18 var(--hue-b) / 0.07));
  border: 1px solid var(--line);
  display: grid;
  place-items: center;
}
.ph .ph-tag {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-3);
  background: var(--card-strong);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 6px 14px;
}

/* ------------------------------------------------ header */
.site-header {
  position: sticky;
  top: 16px;
  z-index: 50;
  margin: 16px auto 0;
  max-width: var(--page-max);
  padding: 0 24px;
}
.nav-pill {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  background: var(--card-strong);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 10px 12px 10px 20px;
  -webkit-backdrop-filter: blur(20px) saturate(150%);
  backdrop-filter: blur(20px) saturate(150%);
  box-shadow: var(--shadow-soft);
}
.nav-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  font-weight: 600;
  font-size: 15px;
  letter-spacing: -0.01em;
}
.nav-brand .mono-tag {
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.1em;
  color: var(--ink-3);
  border-left: 1px solid var(--line-strong);
  padding-left: 12px;
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
  list-style: none;
  margin: 0;
  padding: 0;
}
.nav-links a {
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
  color: var(--ink-2);
  padding: 8px 14px;
  border-radius: 999px;
  transition: color 0.15s ease, background-color 0.15s ease;
}
.nav-links a:hover { color: var(--ink); background: var(--accent-soft); }
.nav-actions { display: flex; align-items: center; gap: 8px; }

.theme-toggle {
  appearance: none;
  border: 1px solid var(--line);
  background: var(--card);
  color: var(--ink-2);
  width: 38px;
  height: 38px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  cursor: pointer;
  font-size: 15px;
  transition: border-color 0.15s ease, color 0.15s ease, transform 0.2s ease;
}
.theme-toggle:hover { border-color: var(--accent); color: var(--accent-ink); transform: rotate(15deg); }
html[data-theme="light"] .theme-toggle .ic-moon { display: none; }
html[data-theme="dark"] .theme-toggle .ic-sun { display: none; }

/* ------------------------------------------------ monogramme */
.monogram { display: inline-block; flex: none; }

/* ------------------------------------------------ apparition au scroll
   (gérée en JS par styles inline éphémères — voir theme.js) */

/* ------------------------------------------------ footer */
.site-footer {
  border-top: 1px solid var(--line);
  margin-top: 120px;
}
.site-footer .inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  padding: 32px 0;
}
.site-footer p {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.06em;
  color: var(--ink-3);
}

/* ------------------------------------------------ responsive */
@media (max-width: 920px) {
  .nav-links { display: none; }
  .page { padding: 0 24px; }
}
@media (max-width: 600px) {
  .page { padding: 0 18px; }
  .site-header { top: 10px; padding: 0 12px; }
  .nav-brand .mono-tag { display: none; }
}