/* ═══════════════════════════════════════════════════
   Théorie Guitare — thème sombre, mobile-first
   ═══════════════════════════════════════════════════ */

/* Polices auto-hébergées (Raleway, Antic Didone) — jamais de réseau,
   même à la toute première ouverture, même en fichier local sans
   serveur. Sous-ensemble latin uniquement : couvre le français. */
@font-face {
  font-family: "Raleway";
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url("fonts/raleway-400.woff2") format("woff2");
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC,
                 U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193,
                 U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
  font-family: "Raleway";
  font-style: normal;
  font-weight: 700;
  font-display: swap;
  src: url("fonts/raleway-700.woff2") format("woff2");
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC,
                 U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193,
                 U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
  font-family: "Antic Didone";
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url("fonts/antic-didone-400.woff2") format("woff2");
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC,
                 U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193,
                 U+2212, U+2215, U+FEFF, U+FFFD;
}

:root {
  /* Fonds — repris de la toute première version (plus sombre) */
  --bg:        #0d0d0d;
  --bg-2:      #141414;
  --bg-3:      #1c1c1c;
  --bg-4:      #242424;
  --border:    #2b2b2b;
  --border-2:  #3a3a3a;

  /* Textes */
  --text:      #f2f2f2;
  --text-dim:  #b8b8b8;
  --text-faint:#7d7d7d;

  /* Degrés — code couleur imposé, jamais retouché */
  --deg-1: #ff6b00;
  --deg-3: #4a9eff;
  --deg-5: #4aff91;
  --deg-7: #b44aff;
  --deg-x: #e0e0e0;

  /* Accent d'interface — le rouge d'adrienstary.fr, indépendant de la
     tonique (--deg-1) qui reste orange sur le manche et les diagrammes. */
  --accent: #c21c27;

  /* Métriques */
  --radius:    10px;
  --radius-sm: 8px;
  --gap:       12px;
  --pad:       14px;
  --header-h:  58px;
  --tabs-h:    46px;

  /* Raleway pour l'interface, écho direct du site ; Antic Didone réservé
     au seul grand titre de l'en-tête. */
  --font: "Raleway", -apple-system, BlinkMacSystemFont, "Segoe UI",
          Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-display: "Antic Didone", Georgia, "Times New Roman", serif;
  --mono: ui-monospace, "SF Mono", "JetBrains Mono", Menlo, Consolas, monospace;

  color-scheme: dark;
}

/* ─────────── Reset ─────────── */

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

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100dvh;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 15px;
  line-height: 1.45;
  -webkit-font-smoothing: antialiased;
  padding-bottom: env(safe-area-inset-bottom);
  overflow-x: hidden;
}

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

button, input, select {
  font: inherit;
  color: inherit;
}

::selection { background: rgba(194,28,39,.3); }

/* Scrollbars discrètes */
* { scrollbar-width: thin; scrollbar-color: var(--border-2) transparent; }
*::-webkit-scrollbar { width: 8px; height: 8px; }
*::-webkit-scrollbar-track { background: transparent; }
*::-webkit-scrollbar-thumb {
  background: var(--border-2);
  border-radius: 4px;
}

/* ─────────── En-tête ─────────── */

.app-header {
  padding: calc(env(safe-area-inset-top) + 12px) var(--pad) 10px;
  background: var(--bg);
  border-bottom: 1px solid var(--border);
}

.app-title {
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 400;
  letter-spacing: .02em;
  text-transform: none;
  color: var(--text-dim);
}
.app-title b {
  font-weight: 600;
  color: var(--text);
}

.app-sub {
  margin-top: 2px;
  font-size: .72rem;
  letter-spacing: .04em;
  color: var(--text-faint);
}

/* ─────────── Onglets ─────────── */

.tabs {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  background: var(--bg);
  border-bottom: 1px solid var(--border);
  overflow-x: auto;
  scrollbar-width: none;
}
.tabs::-webkit-scrollbar { display: none; }

.tab {
  flex: 1 1 0;
  min-width: 0;
  min-height: var(--tabs-h);
  padding: 0 8px;
  background: none;
  border: 0;
  border-bottom: 2px solid transparent;
  color: var(--text-faint);
  font-size: .8rem;
  letter-spacing: .01em;
  white-space: nowrap;
  cursor: pointer;
  transition: color .15s ease, border-color .15s ease;
}
.tab:hover { color: var(--text-dim); }
.tab.is-active {
  color: var(--text);
  border-bottom-color: var(--accent);
}
.tab:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: -3px;
}

/* Sous 400 px, « Cycle des quintes » ne tient pas dans un tiers de l'écran :
   on bascule sur le libellé court plutôt que de le laisser tronquer. */
.tab-short { display: none; }
@media (max-width: 400px) {
  .tab-long  { display: none; }
  .tab-short { display: inline; }
  .tab { font-size: .78rem; }
}

/* ─────────── Contenu ─────────── */

.app-main {
  max-width: 1400px;
  margin: 0 auto;
  padding: var(--pad);
}

.panel { display: none; }
.panel.is-active {
  display: flex;
  flex-direction: column;
  gap: var(--gap);
  animation: fade .18s ease;
}

@keyframes fade {
  from { opacity: 0; transform: translateY(4px); }
  to   { opacity: 1; transform: none; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: .01ms !important;
    transition-duration: .01ms !important;
  }
}

/* ─────────── Sélecteurs ─────────── */

.controls {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}
.controls--compact { grid-template-columns: 1fr; }

.field { display: flex; flex-direction: column; gap: 5px; min-width: 0; }
.field--wide { grid-column: 1 / -1; }

.field label {
  font-size: .68rem;
  letter-spacing: .09em;
  text-transform: uppercase;
  color: var(--text-faint);
}

select {
  width: 100%;
  min-height: 42px;
  padding: 0 32px 0 12px;
  background: var(--bg-3);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text);
  font-size: .92rem;
  cursor: pointer;
  appearance: none;
  background-image:
    linear-gradient(45deg, transparent 50%, var(--text-dim) 50%),
    linear-gradient(135deg, var(--text-dim) 50%, transparent 50%);
  background-position: calc(100% - 17px) 50%, calc(100% - 12px) 50%;
  background-size: 5px 5px, 5px 5px;
  background-repeat: no-repeat;
  transition: border-color .15s ease;
}
select:hover  { border-color: var(--border-2); }
select:focus  { outline: none; border-color: var(--accent); }
select optgroup {
  background: var(--bg-2);
  color: var(--text-faint);
  font-style: normal;
  font-weight: 600;
}
select option {
  background: var(--bg-3);
  color: var(--text);
}

/* ─────────── Boutons ─────────── */

.toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.btn {
  min-height: 38px;
  padding: 0 14px;
  background: var(--bg-3);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-dim);
  font-size: .82rem;
  cursor: pointer;
  transition: background .15s ease, color .15s ease, border-color .15s ease;
}
.btn:hover {
  background: var(--bg-4);
  color: var(--text);
  border-color: var(--border-2);
}
.btn:active { transform: translateY(1px); }
.btn:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

.btn[aria-pressed="true"],
.btn.is-active {
  background: rgba(194,28,39,.14);
  border-color: var(--accent);
  color: var(--accent);
}

.btn--ghost { background: transparent; }

/* Au doigt, les cibles gagnent en hauteur (repère d'accessibilité : 44 px) */
@media (pointer: coarse) {
  .btn   { min-height: 44px; padding: 0 16px; }
  .chip  { min-height: 40px; padding: 0 15px; }
  .tab   { min-height: 50px; }
  select { min-height: 46px; }
  .suggestions li { padding: 13px 14px; }
  .search-clear { width: 40px; height: 40px; }
}

/* ─────────── Cartes ─────────── */

.card {
  padding: var(--pad);
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

.card-title {
  margin-bottom: 10px;
  font-size: 1.12rem;
  font-weight: 600;
  color: var(--text);
}

.kv {
  display: grid;
  grid-template-columns: 92px 1fr;
  gap: 10px;
  padding: 6px 0;
  border-top: 1px solid var(--border);
  font-size: .88rem;
}
.kv:first-of-type { border-top: 0; }

.kv-label {
  font-size: .68rem;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--text-faint);
  padding-top: 2px;
}
.kv-value {
  font-family: var(--mono);
  color: var(--text);
  word-break: break-word;
}

@media (max-width: 400px) {
  .kv {
    grid-template-columns: 1fr;
    gap: 2px;
  }
  .kv-label { padding-top: 0; }
}

.section-title {
  font-size: .72rem;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--text-faint);
  margin-bottom: 10px;
}
.section-subtitle {
  margin: 18px 0 8px;
  font-size: .72rem;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--text-faint);
}

.hint {
  font-size: .78rem;
  color: var(--text-faint);
  text-align: center;
}

.placeholder {
  display: grid;
  place-items: center;
  min-height: 120px;
  padding: 24px;
  color: var(--text-faint);
  font-size: .82rem;
  text-align: center;
}

/* ─────────── Légende ─────────── */

.legend {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 16px;
  padding: 10px var(--pad);
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-size: .74rem;
  color: var(--text-dim);
}
.legend li { display: flex; align-items: center; gap: 6px; }

.dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  flex: none;
}

/* ─────────── Manche ─────────── */

.fretboard-wrap .note-dot,
.fretboard-wrap .note-hit {
  cursor: pointer;
}
.fretboard-wrap .note-dot {
  transition: filter .28s ease;
}
.fretboard-wrap .note-dot:hover { filter: brightness(1.25); }
.fretboard-wrap .note-dot:focus-visible {
  outline: 2px solid var(--text);
  outline-offset: 1px;
}
.fretboard-wrap .note-dot.is-plucked {
  filter: brightness(1.9) drop-shadow(0 0 5px rgba(255,255,255,.85));
}

.fretboard-wrap {
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: auto;
  -webkit-overflow-scrolling: touch;
  overscroll-behavior-x: contain;
}
.fretboard-wrap svg {
  display: block;
  height: auto;
}

/* Horizontal : rendu 1:1, le conteneur défile en X */
.fretboard-wrap[data-orient="h"] {
  padding: 4px;
}
.fretboard-wrap[data-orient="h"] svg {
  margin: 0 auto;
}

/* Vertical (mobile) : scroll Y dans une hauteur contenue */
.fretboard-wrap[data-orient="v"] {
  max-height: 72dvh;
}
.fretboard-wrap[data-orient="v"] svg {
  width: 100%;
  min-width: 0;
}

/* ─────────── Recherche d'accords ─────────── */

.search {
  position: relative;
  z-index: 15;
}

.search-input {
  width: 100%;
  min-height: 46px;
  padding: 0 42px 0 14px;
  background: var(--bg-3);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text);
  font-size: 1rem;
  transition: border-color .15s ease;
}
.search-input::placeholder { color: var(--text-faint); }
.search-input:focus { outline: none; border-color: var(--accent); }

.search-clear {
  position: absolute;
  top: 50%;
  right: 6px;
  transform: translateY(-50%);
  width: 32px;
  height: 32px;
  background: none;
  border: 0;
  border-radius: var(--radius-sm);
  color: var(--text-faint);
  font-size: 1.35rem;
  line-height: 1;
  cursor: pointer;
}
.search-clear:hover { color: var(--text); background: var(--bg-4); }

.suggestions {
  position: absolute;
  top: calc(100% + 4px);
  left: 0;
  right: 0;
  max-height: min(300px, 46vh);
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  background: var(--bg-3);
  border: 1px solid var(--border-2);
  border-radius: var(--radius-sm);
  box-shadow: 0 12px 32px rgba(0,0,0,.6);
}
.suggestions li {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  padding: 10px 14px;
  border-top: 1px solid var(--border);
  font-size: .9rem;
  cursor: pointer;
}
.suggestions li:first-child { border-top: 0; }
.suggestions li:hover,
.suggestions li.is-highlighted { background: var(--bg-4); }
.suggestions .sug-en {
  font-family: var(--mono);
  font-weight: 600;
}
.suggestions .sug-fr {
  color: var(--text-faint);
  font-size: .78rem;
  text-align: right;
}

/* ─────────── Diagrammes d'accords ─────────── */

.chord-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(152px, 1fr));
  gap: var(--gap);
}

.chord-grid > .placeholder { grid-column: 1 / -1; }

.chord-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  padding: 12px 10px;
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  text-align: center;
}
.chord-card svg { display: block; width: 100%; height: auto; max-width: 148px; }

.chord-card .chord-label {
  font-size: .74rem;
  letter-spacing: .04em;
  color: var(--accent);
}
.chord-card .chord-meta {
  font-family: var(--mono);
  font-size: .72rem;
  color: var(--text-dim);
}

/* ─────────── Ma progression ─────────── */

.progression-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  min-height: 34px;
}

.placeholder-inline {
  font-size: .82rem;
  color: var(--text-faint);
}

.prog-chip {
  display: flex;
  align-items: center;
  gap: 8px;
  min-height: 38px;
  padding: 0 8px 0 14px;
  background: var(--bg-3);
  border: 1px solid var(--border);
  border-radius: 19px;
  font-size: .88rem;
}
.prog-chip .prog-chip-num {
  color: var(--text-faint);
  font-size: .72rem;
  font-family: var(--mono);
}
.prog-chip button {
  width: 24px;
  height: 24px;
  background: none;
  border: 0;
  border-radius: 50%;
  color: var(--text-faint);
  font-size: 1.05rem;
  line-height: 1;
  cursor: pointer;
}
.prog-chip button:hover { background: var(--bg-4); color: var(--text); }

/* Une gamme couvre-t-elle exactement la progression, ou seulement en partie ? */
.chip.is-exact { border-color: var(--deg-5); }
.chip.is-partial {
  opacity: .8;
  border-style: dashed;
}
.chip.is-selected {
  background: rgba(194,28,39,.14);
  border-color: var(--accent);
  color: var(--accent);
}
.chip .chip-coverage {
  color: var(--text-faint);
  margin-left: 5px;
  font-size: .72rem;
}

/* ─────────── Accords connexes ─────────── */

.chip-group {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.chip {
  min-height: 34px;
  padding: 0 13px;
  background: var(--bg-3);
  border: 1px solid var(--border);
  border-radius: 17px;
  color: var(--text);
  font-size: .85rem;
  cursor: pointer;
  transition: background .15s ease, border-color .15s ease;
}
.chip:hover { background: var(--bg-4); border-color: var(--accent); }
.chip small { color: var(--text-faint); margin-left: 5px; font-size: .72rem; }

.progressions {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.progression {
  padding: 10px 12px;
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
}
.progression-name {
  font-size: .68rem;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--text-faint);
  margin-bottom: 8px;
}
.progression .chip-group { gap: 6px; }

/* ─────────── Cycle des quintes ─────────── */

.circle-wrap {
  display: grid;
  place-items: center;
  padding: 10px;
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}
.circle-wrap svg {
  display: block;
  width: 100%;
  max-width: 560px;
  height: auto;
}
.circle-wrap .cell {
  cursor: pointer;
  transition: fill .12s ease;
}
.circle-wrap .cell:hover { fill: #2e2e2e; }
.circle-wrap .cell:focus-visible { outline: 2px solid var(--accent); outline-offset: -2px; }
.circle-wrap text { pointer-events: none; user-select: none; }

.key-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px solid var(--border);
}

/* ─────────── Pied de page ─────────── */

.app-footer {
  padding: 18px var(--pad) calc(18px + env(safe-area-inset-bottom));
  text-align: center;
  font-size: .7rem;
  letter-spacing: .06em;
  color: var(--text-faint);
  border-top: 1px solid var(--border);
  margin-top: 20px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.app-copyright {
  font-size: .68rem;
  letter-spacing: .04em;
  color: var(--text-faint);
}

/* ═══════════════ Tablette ═══════════════ */

@media (min-width: 640px) {
  :root { --pad: 18px; --gap: 16px; }

  body { font-size: 15.5px; }

  .controls { grid-template-columns: repeat(3, 1fr); }
  .field--wide { grid-column: auto; }
  .controls--compact { grid-template-columns: minmax(0, 260px); }

  .app-title { font-size: 1.15rem; }
  .tab { padding: 0 18px; font-size: .86rem; }
  .kv { grid-template-columns: 110px 1fr; }

  .chord-grid { grid-template-columns: repeat(auto-fill, minmax(168px, 1fr)); }
}

/* ═══════════════ Desktop ═══════════════ */

@media (min-width: 1024px) {
  :root { --pad: 24px; }

  .app-header {
    display: flex;
    align-items: baseline;
    gap: 14px;
  }
  .app-sub { margin-top: 0; }

  .tabs { border-bottom: 1px solid var(--border); }
  .tab { flex: 0 0 auto; padding: 0 26px; font-size: .86rem; }

  .fretboard-wrap[data-orient="h"] { padding: 8px; }

  .chord-grid { grid-template-columns: repeat(auto-fill, minmax(184px, 1fr)); }

  .panel--split {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 340px;
    align-items: start;
  }
}