/* =========================================================================
   CCJ Creador IA + DAW — styles.css
   Tema oscuro de estudio: fondo casi negro azulado, paneles elevados,
   acento ámbar (como los VU de una consola) y rejillas de pasos compactas.
   ========================================================================= */

:root {
  --bg: #0e1116;
  --bg-2: #151a21;
  --panel: #1a212b;
  --panel-2: #212a36;
  --line: #2c3644;
  --text: #e8edf3;
  --muted: #93a1b3;
  --accent: #ffb454;
  --accent-2: #ff7847;
  --ok: #58d68a;
  --danger: #ff6b6b;
  --cell: #232c38;
  --cell-on: #ffb454;
  --cell-beat: #1d242f;
  --radius: 12px;
}

* { box-sizing: border-box; }

html, body { margin: 0; padding: 0; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: "Segoe UI", system-ui, -apple-system, Roboto, "Helvetica Neue", Arial, sans-serif;
  min-height: 100vh;
}

/* ------------------------------- Barra superior ------------------------- */
.topbar {
  display: flex; flex-wrap: wrap; gap: 12px; align-items: center;
  justify-content: space-between;
  padding: 14px 20px;
  background: linear-gradient(180deg, #171d26, #11151c);
  border-bottom: 1px solid var(--line);
  position: sticky; top: 0; z-index: 20;
}
.brand { display: flex; align-items: center; gap: 12px; }
.brand-mark { font-size: 30px; }
.brand h1 { font-size: 19px; margin: 0; letter-spacing: .3px; }
.brand-sub { margin: 2px 0 0; color: var(--muted); font-size: 12.5px; }
.topnav { display: flex; gap: 8px; }
.nav-btn {
  background: var(--panel); color: var(--text);
  border: 1px solid var(--line); border-radius: 999px;
  padding: 8px 14px; cursor: pointer; font-size: 14px;
}
.nav-btn:hover { border-color: var(--accent); }
.nav-btn.active { background: var(--accent); color: #1a1206; border-color: var(--accent); font-weight: 600; }

main { max-width: 1180px; margin: 0 auto; padding: 20px 16px 60px; }

.view-head { display: flex; align-items: center; justify-content: space-between; gap: 12px; flex-wrap: wrap; }
h2 { font-size: 20px; margin: 6px 0 12px; }
h3 { font-size: 15px; margin: 18px 0 8px; color: var(--accent); }
.hint { color: var(--muted); font-size: 13px; line-height: 1.45; }
.empty { color: var(--muted); padding: 26px; text-align: center; border: 1px dashed var(--line); border-radius: var(--radius); }

/* --------------------------------- Botones ------------------------------ */
.btn {
  background: var(--panel-2); color: var(--text);
  border: 1px solid var(--line); border-radius: 10px;
  padding: 9px 14px; font-size: 14px; cursor: pointer;
}
.btn:hover { border-color: var(--accent); }
.btn.primary { background: var(--accent); border-color: var(--accent); color: #1a1206; font-weight: 700; }
.btn.primary:hover { background: #ffc478; }
.btn.danger { border-color: #5a2b2b; color: var(--danger); }
.btn.danger.recording, .btn.recording { background: var(--danger); color: #fff; border-color: var(--danger); }
.btn.small { padding: 6px 10px; font-size: 13px; }
.btn.big { font-size: 16px; padding: 12px 20px; }
.btn:disabled { opacity: .45; cursor: not-allowed; }

/* ------------------------------ Biblioteca ------------------------------ */
.project-list { display: grid; grid-template-columns: repeat(auto-fill, minmax(250px, 1fr)); gap: 14px; margin-top: 14px; }
.project-card {
  background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 16px; display: flex; flex-direction: column; gap: 8px;
}
.project-card h3 { margin: 0; color: var(--text); font-size: 16px; }
.project-card .meta { color: var(--muted); font-size: 12.5px; line-height: 1.5; }
.project-card .card-actions { display: flex; gap: 8px; margin-top: auto; flex-wrap: wrap; }

/* -------------------------------- Tarjetas ------------------------------ */
.card {
  background: var(--panel); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 18px; margin-top: 16px;
}

/* -------------------------------- Creador ------------------------------- */
.creator-grid { display: grid; grid-template-columns: 1.6fr 1fr; gap: 16px; align-items: start; }
@media (max-width: 860px) { .creator-grid { grid-template-columns: 1fr; } }
#creatorForm label { display: block; margin: 12px 0; font-size: 13.5px; color: var(--muted); }
#creatorForm input[type="text"], #creatorForm select, #creatorForm textarea, #creatorForm input[type="number"] {
  width: 100%; margin-top: 6px; padding: 10px;
  background: var(--bg-2); color: var(--text);
  border: 1px solid var(--line); border-radius: 8px; font-size: 14.5px; font-family: inherit;
}
#creatorForm textarea { resize: vertical; line-height: 1.5; }
#creatorForm input:focus, #creatorForm select:focus, #creatorForm textarea:focus {
  outline: 2px solid var(--accent); outline-offset: 0; border-color: var(--accent);
}
#creatorForm input[type="range"] { width: 100%; accent-color: var(--accent); margin-top: 8px; }
.row-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
fieldset { border: 1px solid var(--line); border-radius: 8px; margin: 14px 0; padding: 12px; }
legend { color: var(--muted); font-size: 13px; padding: 0 6px; }
.section-list { display: flex; flex-direction: column; gap: 8px; margin-bottom: 10px; }
.section-item { display: flex; gap: 8px; align-items: center; }
.section-item input { flex: 1; }

.passport dl { display: grid; grid-template-columns: auto 1fr; gap: 7px 14px; margin: 0; font-size: 14px; }
.passport dt { color: var(--muted); }
.passport dd { margin: 0; font-weight: 600; }

/* ------------------------------- Transporte ----------------------------- */
.transport { display: flex; align-items: center; gap: 14px; flex-wrap: wrap; }
.transport-tempo input {
  width: 72px; padding: 8px; margin: 0 4px;
  background: var(--bg-2); color: var(--text);
  border: 1px solid var(--line); border-radius: 8px; font-size: 15px;
}
.check { display: inline-flex; align-items: center; gap: 7px; font-size: 14px; cursor: pointer; }
.check input { accent-color: var(--accent); width: 17px; height: 17px; }
.transport-step { color: var(--muted); font-size: 14px; }
.transport-step strong { color: var(--accent); font-size: 16px; }

/* --------------------------------- Pistas ------------------------------- */
.track-list { display: flex; flex-direction: column; gap: 14px; margin-top: 16px; }
.track {
  background: var(--panel); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 12px 14px;
}
.track-head { display: flex; align-items: center; gap: 14px; flex-wrap: wrap; margin-bottom: 10px; }
.track-name { font-weight: 700; font-size: 15px; min-width: 84px; }
.mixer { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; margin-left: auto; }
.mixer label { font-size: 12px; color: var(--muted); display: inline-flex; align-items: center; gap: 6px; }
.mixer input[type="range"] { width: 96px; accent-color: var(--accent); }
.mixer input[type="range"].pan { width: 64px; }
.toggle-btn {
  background: var(--bg-2); color: var(--muted);
  border: 1px solid var(--line); border-radius: 7px;
  width: 32px; height: 30px; cursor: pointer; font-weight: 700; font-size: 13px;
}
.toggle-btn.on-mute { background: var(--danger); color: #fff; border-color: var(--danger); }
.toggle-btn.on-solo { background: var(--ok); color: #06280f; border-color: var(--ok); }
.track.silenced .grid-wrap { opacity: .38; }

/* Rejilla de pasos: etiqueta de fila + 32 celdas */
.grid-scroll { overflow-x: auto; padding-bottom: 4px; }
.grid { display: grid; gap: 3px; min-width: 760px; }
.grid .row-label {
  font-size: 10.5px; color: var(--muted); text-align: right;
  padding-right: 7px; align-self: center; white-space: nowrap; overflow: hidden;
}
.grid .cell {
  height: 17px; border-radius: 4px; background: var(--cell);
  border: 1px solid transparent; cursor: pointer; padding: 0;
}
.grid .cell.beat { background: var(--cell-beat); }
.grid .cell:hover { border-color: var(--accent); }
.grid .cell.on { background: var(--cell-on); box-shadow: 0 0 6px rgba(255, 180, 84, .45); }
.grid .cell.playing { outline: 2px solid rgba(255,255,255,.65); outline-offset: -1px; }
.grid .cell.on.playing { background: #ffd28f; }
.track.drums .cell.on { background: var(--accent-2); box-shadow: 0 0 6px rgba(255, 120, 71, .45); }

/* ------------------------------ Clip de audio ---------------------------- */
.clip-actions { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }
.clip-info { color: var(--muted); font-size: 13.5px; }
.clip-wave {
  width: 100%; height: 90px; margin-top: 12px;
  background: var(--bg-2); border: 1px solid var(--line); border-radius: 8px;
}

/* ------------------------------ Exportaciones --------------------------- */
.export-actions { display: flex; gap: 10px; flex-wrap: wrap; }
.bridge-list { list-style: none; margin: 8px 0; padding: 0; display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 8px; }
.bridge-list li {
  padding: 10px 12px; border: 1px solid var(--line); border-radius: 8px;
  background: var(--bg-2); color: var(--muted); font-size: 14px;
}
.bridge-list li::before { content: "☐ "; }
.bridge-list li.done { color: var(--ok); border-color: var(--ok); }
.bridge-list li.done::before { content: "☑ "; }

/* --------------------------------- Toast -------------------------------- */
.toast {
  position: fixed; left: 50%; bottom: 22px; transform: translateX(-50%);
  background: #242e3b; color: var(--text); border: 1px solid var(--accent);
  padding: 11px 18px; border-radius: 999px; font-size: 14px; z-index: 50;
  box-shadow: 0 8px 28px rgba(0,0,0,.5); max-width: 92vw; text-align: center;
}