/* Compagnon d'accords ukulélé · Lisière Subtil */

:root {
  --creme: #faf4e8;
  --sable: #f1e7d2;
  --carte: #fffdf7;
  --encre: #2a2320;
  --encre-2: #5d5148;
  --corail: #e2634a;
  --corail-fonce: #c24a33;
  --vert: #2f6b4f;
  --jaune: #f4b942;
  --ombre: 0 2px 10px rgba(42, 35, 32, 0.08), 0 1px 3px rgba(42, 35, 32, 0.06);
  --radius: 14px;
  --font-display: 'Fraunces', Georgia, serif;
  --font-body: 'Inter', system-ui, sans-serif;
}

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

html { scroll-behavior: smooth; scroll-padding-top: 64px; }

body {
  font-family: var(--font-body);
  background: var(--creme);
  color: var(--encre);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* ---------- Hero ---------- */
.hero {
  background: linear-gradient(160deg, #2f6b4f 0%, #24523c 100%);
  color: var(--creme);
  padding: 64px 20px 56px;
  position: relative;
  overflow: hidden;
}
.hero::after {
  content: '';
  position: absolute;
  right: -60px; top: -60px;
  width: 280px; height: 280px;
  border-radius: 50%;
  background: rgba(244, 185, 66, 0.14);
}
.hero-inner { max-width: 720px; margin: 0 auto; position: relative; z-index: 1; }
.hero h1 {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(2.1rem, 6vw, 3.4rem);
  line-height: 1.08;
  margin-bottom: 18px;
}
.hero .accent { color: var(--jaune); }
.hero-sub { font-size: clamp(1rem, 2.5vw, 1.15rem); opacity: 0.92; max-width: 600px; }
.hero-hint {
  margin-top: 18px;
  display: inline-block;
  background: rgba(250, 244, 232, 0.12);
  border: 1px solid rgba(250, 244, 232, 0.3);
  padding: 6px 14px;
  border-radius: 100px;
  font-size: 0.85rem;
}

/* ---------- Nav ---------- */
.topnav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(250, 244, 232, 0.92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid rgba(42, 35, 32, 0.1);
  display: flex;
  gap: 4px;
  overflow-x: auto;
  padding: 10px 16px;
  scrollbar-width: none;
}
.topnav::-webkit-scrollbar { display: none; }
.topnav a {
  color: var(--encre-2);
  text-decoration: none;
  font-weight: 500;
  font-size: 0.9rem;
  padding: 6px 14px;
  border-radius: 100px;
  white-space: nowrap;
  transition: background 0.15s, color 0.15s;
}
.topnav a:hover, .topnav a:focus-visible { background: var(--sable); color: var(--encre); }

/* ---------- Sections ---------- */
.section { max-width: 1060px; margin: 0 auto; padding: 56px 20px 8px; }
.section h2 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.5rem, 4vw, 2.1rem);
  margin-bottom: 12px;
}
.section-intro { color: var(--encre-2); max-width: 720px; margin-bottom: 28px; }

/* ---------- Guide lecture ---------- */
.lire-grid {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 32px;
  align-items: start;
  background: var(--carte);
  border-radius: var(--radius);
  box-shadow: var(--ombre);
  padding: 28px;
}
.lire-diagram { display: flex; justify-content: center; }
.lire-steps { padding-left: 20px; display: grid; gap: 10px; }
.lire-steps li { color: var(--encre-2); }
.lire-steps strong { color: var(--encre); }
@media (max-width: 640px) {
  .lire-grid { grid-template-columns: 1fr; gap: 16px; padding: 20px; }
}

/* ---------- Cartes accord ---------- */
.chord-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(158px, 1fr));
  gap: 14px;
}
.chord-card {
  background: var(--carte);
  border: 1px solid rgba(42, 35, 32, 0.07);
  border-radius: var(--radius);
  box-shadow: var(--ombre);
  padding: 14px 10px 12px;
  text-align: center;
  cursor: pointer;
  transition: transform 0.12s, box-shadow 0.12s;
  -webkit-tap-highlight-color: transparent;
}
.chord-card:hover { transform: translateY(-2px); box-shadow: 0 6px 18px rgba(42, 35, 32, 0.12); }
.chord-card.playing { outline: 3px solid var(--corail); outline-offset: -1px; }
.chord-card h3 {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 2px;
}
.chord-card .chord-sub { font-size: 0.72rem; color: var(--encre-2); margin-bottom: 6px; }
.chord-card svg { max-width: 110px; height: auto; }
.chord-actions { display: flex; gap: 6px; justify-content: center; margin-top: 8px; }
.chord-actions button {
  font-family: var(--font-body);
  font-size: 0.72rem;
  font-weight: 500;
  padding: 5px 10px;
  border-radius: 100px;
  border: 1px solid rgba(42, 35, 32, 0.18);
  background: transparent;
  color: var(--encre-2);
  cursor: pointer;
  transition: background 0.15s, color 0.15s;
}
.chord-actions button:hover { background: var(--encre); color: var(--creme); border-color: var(--encre); }
.dots { display: inline-flex; gap: 3px; margin-top: 6px; }
.dots i {
  width: 6px; height: 6px; border-radius: 50%;
  background: rgba(42, 35, 32, 0.15);
}
.dots i.on { background: var(--corail); }

.starter-order {
  position: absolute;
  top: -8px; left: -8px;
  width: 28px; height: 28px;
  border-radius: 50%;
  background: var(--jaune);
  color: var(--encre);
  font-weight: 700;
  font-size: 0.9rem;
  display: flex; align-items: center; justify-content: center;
  box-shadow: var(--ombre);
}
#starter-grid .chord-card { position: relative; }

.callout {
  margin-top: 24px;
  background: var(--sable);
  border-left: 4px solid var(--jaune);
  border-radius: 0 var(--radius) var(--radius) 0;
  padding: 16px 20px;
  color: var(--encre-2);
}
.callout strong { color: var(--encre); }

/* ---------- Ambiances ---------- */
.vibe-chips, .root-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 26px;
}
.chip {
  font-family: var(--font-body);
  font-size: 0.9rem;
  font-weight: 500;
  padding: 8px 16px;
  border-radius: 100px;
  border: 1px solid rgba(42, 35, 32, 0.18);
  background: var(--carte);
  color: var(--encre-2);
  cursor: pointer;
  transition: all 0.15s;
}
.chip:hover { border-color: var(--corail); color: var(--corail-fonce); }
.chip.active { background: var(--corail); border-color: var(--corail); color: #fff; }
.root-chips .chip { min-width: 46px; text-align: center; font-weight: 700; padding: 8px 10px; }

.vibe-desc { color: var(--encre-2); max-width: 700px; margin-bottom: 20px; font-style: italic; }

.prog-card {
  background: var(--carte);
  border-radius: var(--radius);
  box-shadow: var(--ombre);
  padding: 20px;
  margin-bottom: 18px;
}
.prog-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 8px 14px;
  margin-bottom: 4px;
}
.prog-head h3 { font-family: var(--font-display); font-size: 1.3rem; font-weight: 700; }
.prog-suite { font-size: 0.85rem; color: var(--encre-2); font-weight: 500; letter-spacing: 0.02em; }
.prog-desc { color: var(--encre-2); font-size: 0.92rem; margin-bottom: 14px; }

.prog-chords {
  display: flex;
  gap: 10px;
  overflow-x: auto;
  padding: 4px 2px 10px;
  scrollbar-width: thin;
}
.prog-chord {
  flex: 0 0 auto;
  width: 96px;
  text-align: center;
  background: var(--creme);
  border: 1px solid rgba(42, 35, 32, 0.08);
  border-radius: 10px;
  padding: 8px 4px 6px;
  cursor: pointer;
  transition: transform 0.1s;
  -webkit-tap-highlight-color: transparent;
}
.prog-chord:hover { transform: translateY(-2px); }
.prog-chord.active { background: #fbe3dc; border-color: var(--corail); box-shadow: 0 0 0 2px var(--corail); }
.prog-chord .pc-name { font-family: var(--font-display); font-weight: 700; font-size: 1rem; }
.prog-chord svg { width: 74px; height: auto; }

.prog-controls {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px 18px;
  margin-top: 10px;
}
.play-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-body);
  font-weight: 700;
  font-size: 0.95rem;
  background: var(--vert);
  color: #fff;
  border: none;
  border-radius: 100px;
  padding: 11px 22px;
  cursor: pointer;
  transition: background 0.15s, transform 0.1s;
}
.play-btn:hover { background: #24523c; }
.play-btn:active { transform: scale(0.97); }
.play-btn.playing { background: var(--corail); }
.play-btn.playing:hover { background: var(--corail-fonce); }
.play-btn svg { width: 14px; height: 14px; fill: currentColor; }

.tempo-ctl { display: flex; align-items: center; gap: 8px; font-size: 0.85rem; color: var(--encre-2); }
.tempo-ctl input[type='range'] { width: 110px; accent-color: var(--corail); }
.tempo-val { font-variant-numeric: tabular-nums; min-width: 70px; }

.mode-ctl { display: inline-flex; border: 1px solid rgba(42, 35, 32, 0.18); border-radius: 100px; overflow: hidden; }
.mode-ctl button {
  font-family: var(--font-body);
  font-size: 0.8rem;
  padding: 7px 13px;
  border: none;
  background: transparent;
  color: var(--encre-2);
  cursor: pointer;
}
.mode-ctl button.active { background: var(--encre); color: var(--creme); }

.pattern-line {
  display: flex;
  gap: 5px;
  margin-top: 12px;
  align-items: center;
  flex-wrap: wrap;
}
.pattern-line .step {
  width: 26px; height: 30px;
  display: flex; align-items: center; justify-content: center;
  border-radius: 7px;
  background: var(--creme);
  border: 1px solid rgba(42, 35, 32, 0.08);
  font-size: 0.95rem;
  color: var(--encre-2);
  font-weight: 700;
}
.pattern-line .step.hit { color: var(--corail-fonce); }
.pattern-line .step.now { background: var(--jaune); color: var(--encre); border-color: var(--jaune); }
.pattern-label { font-size: 0.78rem; color: var(--encre-2); margin-right: 6px; }

/* ---------- Rythmes ---------- */
.pattern-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: 14px;
}
.pattern-card {
  background: var(--carte);
  border-radius: var(--radius);
  box-shadow: var(--ombre);
  padding: 18px;
}
.pattern-card h3 { font-family: var(--font-display); font-size: 1.1rem; margin-bottom: 4px; }
.pattern-card p { font-size: 0.85rem; color: var(--encre-2); margin-bottom: 10px; }
.pattern-card .play-btn { padding: 8px 16px; font-size: 0.85rem; margin-top: 10px; }

/* ---------- Explorateur ---------- */
.group-title {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 700;
  margin: 26px 0 12px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.group-title::after { content: ''; flex: 1; height: 1px; background: rgba(42, 35, 32, 0.12); }
.group-note { font-size: 0.8rem; color: var(--encre-2); font-family: var(--font-body); font-weight: 400; }

/* ---------- Diagramme SVG ---------- */
.diagram-note-label { font-size: 0.7rem; }

/* ---------- Footer ---------- */
.footer {
  margin-top: 72px;
  padding: 36px 20px;
  background: var(--encre);
  color: rgba(250, 244, 232, 0.85);
  text-align: center;
}
.footer a { color: var(--jaune); }
.footer-small { font-size: 0.8rem; opacity: 0.6; margin-top: 6px; }

@media (max-width: 480px) {
  .chord-grid { grid-template-columns: repeat(auto-fill, minmax(136px, 1fr)); gap: 10px; }
  .section { padding-top: 44px; }
  .prog-card { padding: 16px 14px; }
}