/* ===========================================================================
   LÉO GARNAUD — Hub des outils.
   Système de design partagé avec Octane / Pantone / Tempo / Atmo (brutaliste),
   mais layout « galerie de tuiles » pour différencier le hub des sites-outils.
   =========================================================================== */
:root {
  --bg: #0d0d0d;
  --bg-soft: #161616;
  --bg-card: #1a1a1a;
  --ink: #f5f1e8;
  --ink-dim: #8a8278;
  --accent: #ff6b00;
  --accent-soft: #ffb800;
  --grid: #222;
  --border: #2a2a2a;
  --grid-opacity: 0.35;
  --glow-opacity: 0.12;
}

:root[data-theme="light"] {
  --bg: #f5f1e8;
  --bg-soft: #ebe4d2;
  --bg-card: #fbf8ef;
  --ink: #141210;
  --ink-dim: #6b6356;
  --accent: #e85f00;
  --accent-soft: #c88a00;
  --grid: #d9d1bc;
  --border: #ccc3ab;
  --grid-opacity: 0.55;
  --glow-opacity: 0.08;
}

html, body { transition: background-color 0.25s ease, color 0.25s ease; }
* { box-sizing: border-box; margin: 0; padding: 0; }

html, body {
  background: var(--bg);
  color: var(--ink);
  font-family: 'JetBrains Mono', monospace;
  min-height: 100vh;
  overflow-x: hidden;
}

body::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(var(--grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid) 1px, transparent 1px);
  background-size: 60px 60px;
  opacity: var(--grid-opacity);
  pointer-events: none;
  z-index: 0;
}

body::after {
  content: '';
  position: fixed;
  inset: 0;
  background: radial-gradient(ellipse at top, rgba(255,107,0, var(--glow-opacity)), transparent 60%);
  pointer-events: none;
  z-index: 0;
}

.container {
  position: relative;
  z-index: 1;
  max-width: 1100px;
  margin: 0 auto;
  padding: 2rem 1.5rem 4rem;
  display: flex;
  flex-direction: column;
}

/* ---- Header (allégé : pas de statut, pas de nav) ---- */
header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 3.5rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--border);
}

.logo {
  font-family: 'Archivo Black', sans-serif;
  font-size: clamp(1.5rem, 4.5vw, 2.6rem);
  letter-spacing: -0.04em;
  line-height: 0.9;
  color: var(--ink);
  text-decoration: none;
  display: inline-block;
}
.logo span { color: var(--accent); }

.tagline {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: var(--ink-dim);
  margin-top: 0.5rem;
}

.theme-toggle {
  background: none;
  border: 1px solid var(--border);
  color: var(--ink-dim);
  width: 36px; height: 36px;
  border-radius: 50%;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 0.95rem;
  line-height: 1;
  transition: border-color 0.2s, color 0.2s, transform 0.2s;
  flex-shrink: 0;
}
.theme-toggle:hover { border-color: var(--accent); color: var(--accent); transform: rotate(15deg); }

/* ---- Hero (centré — différent des outils alignés à gauche) ---- */
.hero {
  text-align: center;
  margin: 1rem auto 3.5rem;
  max-width: 680px;
}
.hero h1 {
  font-family: 'Instrument Serif', serif;
  font-size: clamp(2.8rem, 9vw, 5.5rem);
  line-height: 1;
  font-weight: 400;
  letter-spacing: -0.02em;
  margin-bottom: 1.25rem;
}
.hero h1 em { font-style: italic; color: var(--accent-soft); }
.hero p {
  color: var(--ink-dim);
  font-size: 0.92rem;
  line-height: 1.7;
  max-width: 480px;
  margin: 0 auto;
}

/* ===========================================================================
   GALERIE DE TUILES
   =========================================================================== */
.gallery {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
}

.tile {
  position: relative;
  display: flex;
  flex-direction: column;
  background: var(--bg-card);
  border: 1px solid var(--border);
  padding: 1.75rem;
  text-decoration: none;
  color: var(--ink);
  overflow: hidden;
  transition: transform 0.15s ease, border-color 0.15s ease;
}
.tile:hover, .tile:focus-visible {
  transform: translateY(-3px);
  border-color: var(--accent);
  outline: none;
}

/* Équerres d'angle révélées au survol (clin d'œil aux cartes-outils) */
.tile::before, .tile::after {
  content: '';
  position: absolute;
  width: 16px; height: 16px;
  opacity: 0;
  transition: opacity 0.15s ease;
}
.tile::before { top: -1px; left: -1px; border-top: 2px solid var(--accent); border-left: 2px solid var(--accent); }
.tile::after { bottom: -1px; right: -1px; border-bottom: 2px solid var(--accent); border-right: 2px solid var(--accent); }
.tile:hover::before, .tile:hover::after,
.tile:focus-visible::before, .tile:focus-visible::after { opacity: 1; }

/* Bande de couleur d'identité en haut de la tuile */
.tile-band {
  height: 8px;
  margin: -1.75rem -1.75rem 1.5rem;
  background: var(--accent); /* surchargé en inline depuis tools.js (champ band) */
}

.tile-top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1.25rem;
}
.tile-glyph {
  width: 52px; height: 52px;
  flex-shrink: 0;
}
.tile-glyph svg { width: 100%; height: 100%; display: block; }
.tile-index {
  font-family: 'Archivo Black', sans-serif;
  font-size: 1.4rem;
  color: var(--ink-dim);
  letter-spacing: -0.04em;
  line-height: 1;
}

.tile-title {
  font-family: 'Archivo Black', sans-serif;
  font-size: clamp(1.6rem, 4vw, 2.2rem);
  letter-spacing: -0.03em;
  line-height: 1;
  margin-bottom: 0.7rem;
}
.tile-title span { color: var(--accent); }

.tile-desc {
  color: var(--ink-dim);
  font-size: 0.86rem;
  line-height: 1.6;
  margin-bottom: 1.5rem;
}

.tile-foot {
  margin-top: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}
.tile-tag {
  font-size: 0.62rem;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--ink-dim);
  border: 1px solid var(--border);
  padding: 0.35rem 0.7rem;
}
.tile-go {
  font-family: 'Archivo Black', sans-serif;
  font-size: 0.8rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--accent);
  transform: translateX(0);
  transition: transform 0.15s ease;
}
.tile:hover .tile-go, .tile:focus-visible .tile-go { transform: translateX(4px); }

/* ===========================================================================
   FOOTER + utils
   =========================================================================== */
footer {
  margin-top: 3.5rem;
  text-align: center;
  font-size: 0.7rem;
  color: var(--ink-dim);
  border-top: 1px solid var(--border);
  padding-top: 1.5rem;
  line-height: 1.8;
}
footer a { color: var(--accent); }
.footer-meta {
  margin-top: 0.5rem;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  font-size: 0.62rem;
}

[hidden] { display: none !important; }

/* ===========================================================================
   RESPONSIVE
   =========================================================================== */
@media (max-width: 720px) {
  .gallery { grid-template-columns: 1fr; }
  .hero { margin: 0.5rem auto 2.5rem; }
}

@media (max-width: 540px) {
  .container { padding: 1.5rem 1.1rem 3rem; }
  header { margin-bottom: 2.5rem; }
  .tile { padding: 1.4rem; }
  .tile-band { margin: -1.4rem -1.4rem 1.25rem; }
}

@media (prefers-reduced-motion: reduce) {
  .tile, .tile-go, .theme-toggle, html, body { transition: none; }
  .tile:hover, .tile:focus-visible { transform: none; }
}