/* ═══════════════════════════════════════════════════════════════
   AULATECH SCORE · app.css (owner SHELL)
   Estética Flat.io: fons clar, "full de paper" blanc amb ombra, tinta
   negra de partitura, accent blau Flat. Net, editorial, clar.
   Layout de contenidors: la Palette i la ScoreView (INPUT) pinten a
   dins; aquí donem l'estructura i el look del chrome.
═══════════════════════════════════════════════════════════════ */

:root {
  color-scheme: light;
  --bg:        #f4f5f7;   /* fons Flat */
  --paper:     #ffffff;   /* full de paper */
  --ink:       #1a1a1a;   /* tinta */
  --ink-dim:   #6b7280;   /* text secundari */
  --line:      #e3e5e8;   /* separadors */
  --line-soft: #eef0f3;
  --accent:    #1d9bf0;   /* blau Flat */
  --accent-hi: #4db4f5;
  --accent-dim:#dbeefc;
  --warn:      #e0605e;   /* compàs incomplet */
  --ok:        #1a7f37;
  --chrome:    #ffffff;
  --shadow:    0 2px 14px rgba(0, 0, 0, .08);
  --shadow-sm: 0 1px 4px rgba(0, 0, 0, .06);
  --radius:    9px;
  --topbar-h:  54px;
  --font:      -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;
}

* { box-sizing: border-box; }

html, body {
  margin: 0; height: 100%;
  font-family: var(--font);
  font-size: 14px;
  color: var(--ink);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}

button { font: inherit; cursor: pointer; }

/* ═══ VISTAS (cross-fade, patrón Suite) ═══════════════════════ */
.view {
  position: fixed; inset: 0;
  display: none;
  opacity: 0;
  transition: opacity .24s ease;
}
.view.active { display: flex; }
.view.shown  { opacity: 1; }

/* ═══ LANDING ════════════════════════════════════════════════ */
.view--landing {
  align-items: center; justify-content: center;
  background:
    radial-gradient(1200px 600px at 50% -10%, #ffffff 0%, var(--bg) 60%);
}
.landing__content { text-align: center; padding: 0 1.5rem; max-width: 720px; }
.landing__title {
  font-size: clamp(2.2rem, 5vw, 3.4rem);
  font-weight: 700; letter-spacing: -.02em;
  margin: 0 0 1rem;
}
.landing__subtitle {
  font-size: clamp(1rem, 2vw, 1.25rem);
  color: var(--ink-dim); line-height: 1.5;
  margin: 0 auto 2.4rem; max-width: 42ch;
}
.landing__cta {
  border: 0; border-radius: 999px;
  background: var(--accent); color: #fff;
  font-size: 1rem; font-weight: 600; letter-spacing: .04em;
  padding: .95rem 2.4rem;
  box-shadow: 0 6px 20px rgba(29, 155, 240, .34);
  transition: transform .12s ease, box-shadow .2s ease, background .2s ease;
}
.landing__cta:hover { background: var(--accent-hi); box-shadow: 0 8px 26px rgba(29, 155, 240, .42); }
.landing__cta:active { transform: scale(.98); }

/* ═══ SELECTOR DE 3 MODES ════════════════════════════════════ */
.view--modes { flex-direction: column; align-items: center; justify-content: center; padding: 2rem; }
.modes__title {
  font-size: 1.1rem; font-weight: 600; letter-spacing: .12em;
  text-transform: uppercase; color: var(--ink-dim);
  margin: 0 0 2rem;
}
.modes__grid {
  display: grid; gap: 1.4rem;
  grid-template-columns: repeat(3, minmax(230px, 1fr));
  width: 100%; max-width: 940px;
}
.mode-card {
  display: flex; flex-direction: column; align-items: flex-start;
  gap: .6rem; text-align: left;
  background: var(--paper); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 1.8rem 1.6rem;
  min-height: 190px;
  box-shadow: var(--shadow-sm);
  transition: transform .14s ease, box-shadow .2s ease, border-color .2s ease;
}
.mode-card:hover { transform: translateY(-3px); box-shadow: var(--shadow); border-color: var(--accent); }
.mode-card:active { transform: translateY(0); }
.mode-card__icon { font-size: 1.9rem; color: var(--accent); line-height: 1; }
.mode-card__name { font-size: 1.05rem; font-weight: 700; letter-spacing: .04em; }
.mode-card__desc { font-size: .86rem; color: var(--ink-dim); line-height: 1.5; }

/* ═══ SELECTORES ACADÈMIA / LABORATORI ═══════════════════════ */
.view--selector { flex-direction: column; padding: 2rem clamp(1rem, 5vw, 4rem); overflow: auto; }
.selector__header {
  display: flex; align-items: center; gap: 1rem;
  margin: 0 0 1.6rem; max-width: 1000px; width: 100%; margin-inline: auto;
}
.selector__back {
  background: var(--paper); border: 1px solid var(--line);
  border-radius: 8px; padding: .45rem .9rem; color: var(--ink-dim);
  transition: color .2s, border-color .2s;
}
.selector__back:hover { color: var(--accent); border-color: var(--accent); }
.selector__title { font-size: 1.1rem; font-weight: 700; letter-spacing: .08em; margin: 0; }
.selector__progress { margin-left: auto; color: var(--ink-dim); font-variant-numeric: tabular-nums; }
.selector__grid {
  display: grid; gap: 1rem; max-width: 1000px; width: 100%; margin-inline: auto;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
}
.selector__levels { max-width: 1000px; width: 100%; margin-inline: auto; display: grid; gap: 1.6rem; }
.selector__level { border-left: 3px solid var(--line); padding-left: 1rem; }
.selector__level--facil   { border-left-color: var(--ok); }
.selector__level--mitja   { border-left-color: var(--accent); }
.selector__level--dificil { border-left-color: var(--warn); }
.selector__level-title { font-weight: 700; letter-spacing: .06em; margin: 0 0 .8rem; font-size: .85rem; text-transform: uppercase; color: var(--ink-dim); }
.selector__sub-grid { display: grid; gap: 1rem; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); }

.mission-card {
  display: flex; flex-direction: column; gap: .35rem; text-align: left;
  background: var(--paper); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 1rem 1.1rem;
  box-shadow: var(--shadow-sm);
  transition: transform .12s, box-shadow .2s, border-color .2s;
}
.mission-card:hover:not(:disabled) { transform: translateY(-2px); box-shadow: var(--shadow); border-color: var(--accent); }
.mission-card--done { border-color: var(--ok); }
.mission-card--pending, .mission-card:disabled { opacity: .55; cursor: default; }
.mission-card__check { color: var(--accent); font-weight: 700; }
.mission-card--done .mission-card__check { color: var(--ok); }
.mission-card__title { font-weight: 600; }
.mission-card__desc { font-size: .82rem; color: var(--ink-dim); line-height: 1.45; }

/* ═══ EDITOR — layout §9 ═════════════════════════════════════ */
.view--editor { flex-direction: column; }
.editor {
  display: grid;
  grid-template-rows: var(--topbar-h) auto 1fr;
  grid-template-columns: 1fr;
  height: 100%; width: 100%;
}
.editor[data-inspector="on"] {
  grid-template-columns: 1fr 260px;
  grid-template-areas:
    "topbar  topbar"
    "palette palette"
    "score   inspector";
}
.editor { grid-template-areas: "topbar" "palette" "score"; }

/* ── Topbar ─────────────────────────────────────────────────── */
.topbar {
  grid-area: topbar;
  display: flex; align-items: center; gap: .6rem;
  padding: 0 .9rem;
  background: var(--chrome); border-bottom: 1px solid var(--line);
  box-shadow: var(--shadow-sm); z-index: 5;
}
.topbar__back {
  background: transparent; border: 1px solid var(--line);
  border-radius: 8px; padding: .4rem .8rem; color: var(--ink-dim);
  transition: color .2s, border-color .2s;
}
.topbar__back:hover { color: var(--accent); border-color: var(--accent); }
.topbar__badge {
  margin-left: .2rem; padding: .25rem .6rem; border-radius: 6px;
  background: var(--accent-dim); color: var(--accent);
  font-size: .72rem; font-weight: 700; letter-spacing: .06em;
}

/* Toolbar (relleno de #toolbar-root por Toolbar.js) */
.toolbar { display: flex; align-items: center; gap: .55rem; flex: 1; min-width: 0; }
.toolbar__title {
  border: 1px solid transparent; border-radius: 7px;
  padding: .35rem .5rem; font-size: 15px; font-weight: 600;
  background: transparent; color: var(--ink);
  min-width: 8ch; max-width: 26ch; flex: 0 1 auto;
}
.toolbar__title:hover { border-color: var(--line); }
.toolbar__title:focus { outline: none; border-color: var(--accent); background: #fff; }

.toolbar__composer {
  border: 1px solid transparent; border-radius: 7px;
  padding: .3rem .45rem; font-size: 12.5px;
  background: transparent; color: var(--ink-dim);
  min-width: 6ch; max-width: 15ch; flex: 0 1 auto;
}
.toolbar__composer:hover { border-color: var(--line); }
.toolbar__composer:focus { outline: none; border-color: var(--accent); background: #fff; color: var(--ink); }
.toolbar__composer::placeholder { color: #a8aeb6; }

.toolbar__group { display: flex; align-items: center; gap: .35rem; }

/* Desfés / refés i metrònom: botons d'icona, quadrats */
.toolbar__icon { min-width: 32px; padding: .38rem .4rem; font-size: 15px; line-height: 1; }
.toolbar__metro { display: flex; align-items: center; justify-content: center; min-width: 34px; padding: .35rem; }
.toolbar__metro--on { background: var(--accent); border-color: var(--accent); color: #fff; }

/* Menú de transport */
.toolbar__transpose .toolbar__menu-drop { min-width: 232px; }
.toolbar__transpose-hint {
  margin: .35rem .1rem 0; padding-top: .4rem; border-top: 1px solid var(--line-soft);
  font-size: 11px; line-height: 1.4; color: var(--ink-dim);
}

/* Panell de so (mesclador) */
.toolbar__mix-drop { min-width: 300px; padding: .5rem; gap: .3rem; }
.toolbar__mix-row { display: flex; align-items: center; gap: .5rem; }
.toolbar__mix-name { flex: 1 1 auto; font-size: 12.5px; min-width: 0;
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.toolbar__mix-mute { border: 1px solid var(--line); background: var(--paper);
  border-radius: 6px; padding: .2rem .35rem; line-height: 1; font-size: 13px; }
.toolbar__mix-mute.is-off { opacity: .5; }
.toolbar__mix-row input[type="range"] { flex: 0 0 110px; accent-color: var(--accent); }
.toolbar__mix-opts { display: grid; gap: .35rem; margin-top: .5rem;
  padding-top: .5rem; border-top: 1px solid var(--line-soft); font-size: 12.5px; }
.toolbar__mix-opts label { display: flex; align-items: center; gap: .45rem; cursor: pointer; }
.toolbar__mix-opts input[type="checkbox"] { accent-color: var(--accent); margin: 0; }
.toolbar__mix-count select { margin-left: auto; border: 1px solid var(--line);
  border-radius: 6px; padding: .2rem .35rem; font: inherit; font-size: 12px; background: #fff; }
.toolbar__mix-sel { margin-top: .2rem; border: 1px dashed var(--line); background: transparent;
  border-radius: 6px; padding: .4rem; color: var(--accent); width: 100%; }
.toolbar__mix-sel:hover { border-color: var(--accent); background: var(--accent-dim); }

/* Panell d'instruments */
.toolbar__parts-drop { min-width: 340px; padding: .45rem; gap: .3rem; }
.toolbar__part-row { display: flex; align-items: center; gap: .3rem; }
.toolbar__part-row input, .toolbar__part-row select {
  border: 1px solid var(--line); border-radius: 6px; padding: .3rem .4rem;
  font: inherit; font-size: 12.5px; background: #fff; color: var(--ink); min-width: 0;
}
.toolbar__part-name { flex: 1 1 6ch; }
.toolbar__part-row select { flex: 0 0 auto; }
.toolbar__part-del {
  border: 1px solid var(--line); background: var(--paper); border-radius: 6px;
  padding: .28rem .5rem; color: var(--ink-dim); line-height: 1;
}
.toolbar__part-del { font-size: 11px; }
.toolbar__part-del.is-on { background: var(--accent); border-color: var(--accent); color: #fff; }
.toolbar__part-del:hover:not(:disabled) { color: var(--warn); border-color: var(--warn); }
.toolbar__part-del.is-on:hover { color: #fff; }
.toolbar__exit-part { background: var(--accent-dim); border-color: var(--accent); color: var(--accent); }
.toolbar__part-del:disabled { opacity: .35; cursor: default; }
.toolbar__part-add {
  margin-top: .25rem; border: 1px dashed var(--line); background: transparent;
  border-radius: 6px; padding: .45rem; color: var(--accent); width: 100%; text-align: center;
}
.toolbar__part-add:hover { border-color: var(--accent); background: var(--accent-dim); }
.toolbar__tempo {
  padding: .2rem .5rem; border: 1px solid var(--line); border-radius: 8px;
  background: #fbfcfd; cursor: ns-resize; user-select: none;
}
.toolbar__tempo--drag { border-color: var(--accent); }
.toolbar__tempo-note { font-size: 1rem; }
.toolbar__tempo-eq { color: var(--ink-dim); }
.toolbar__tempo-input {
  width: 3.6ch; border: 0; background: transparent; font: inherit;
  font-variant-numeric: tabular-nums; text-align: center; color: var(--ink);
}
.toolbar__tempo-input::-webkit-inner-spin-button { display: none; }

.toolbar__btn {
  border: 1px solid var(--line); background: var(--paper);
  border-radius: 8px; padding: .42rem .8rem; color: var(--ink);
  transition: background .15s, border-color .15s, color .15s;
}
.toolbar__btn:hover:not(:disabled) { background: #f0f4f8; border-color: #cfd6de; }
.toolbar__btn:disabled { opacity: .45; cursor: default; }

.toolbar__play { display: flex; align-items: center; justify-content: center; min-width: 40px; }
.toolbar__play--on { background: var(--accent); border-color: var(--accent); color: #fff; }
.toolbar__play-icon { font-size: 1rem; line-height: 1; }
.toolbar__measure {
  font-size: .78rem; color: var(--accent); font-weight: 600;
  font-variant-numeric: tabular-nums; white-space: nowrap;
}
.toolbar__spacer { flex: 1; }
.toolbar__sep { width: 1px; height: 22px; background: var(--line); margin: 0 .2rem; }

.toolbar__menu { position: relative; }
.toolbar__menu-drop {
  position: absolute; top: calc(100% + 6px); left: 0; z-index: 20;
  background: var(--paper); border: 1px solid var(--line);
  border-radius: 8px; box-shadow: var(--shadow); padding: .3rem; min-width: 150px;
  display: flex; flex-direction: column; gap: .1rem;
}
.toolbar__menu-drop[hidden] { display: none; }
.toolbar__menu-drop button {
  border: 0; background: transparent; text-align: left;
  padding: .5rem .7rem; border-radius: 6px; color: var(--ink);
}
.toolbar__menu-drop button:hover { background: var(--accent-dim); color: var(--accent); }

/* ── Palette container (INPUT pinta a dins) ─────────────────── */
.palette-root {
  grid-area: palette;
  min-height: 46px;
  display: flex; align-items: center; gap: .5rem;
  padding: .35rem .9rem;
  background: var(--chrome); border-bottom: 1px solid var(--line);
  overflow-x: auto;
}

/* ── Score view (paper) ─────────────────────────────────────── */
.scoreview {
  grid-area: score;
  position: relative;
  overflow: auto;
  padding: 28px;
  background:
    radial-gradient(900px 300px at 50% 0, #fbfcfe 0, var(--bg) 70%);
}
.scoreview__paper {
  background: var(--paper);
  margin: 0 auto;
  max-width: 1000px;
  min-height: 60vh;
  border-radius: 6px;
  box-shadow: var(--shadow);
  padding: 12px 8px;
}
.scoreview__overlay {
  position: absolute; inset: 0; pointer-events: none;
}

/* ── Inspector lateral ──────────────────────────────────────── */
.inspector {
  grid-area: inspector;
  border-left: 1px solid var(--line);
  background: var(--chrome);
  padding: 1rem .9rem; overflow: auto;
}
.editor:not([data-inspector="on"]) .inspector { display: none; }
.inspector__title {
  font-size: .74rem; font-weight: 700; letter-spacing: .1em;
  text-transform: uppercase; color: var(--ink-dim); margin: 0 0 .8rem;
}
.inspector__row {
  display: flex; align-items: center; justify-content: space-between; gap: .6rem;
  padding: .35rem 0; border-bottom: 1px solid var(--line-soft);
}
.inspector__label { color: var(--ink-dim); font-size: .82rem; }
.inspector__value { font-weight: 600; font-size: .86rem; text-align: right; }
.inspector__divider {
  margin: .9rem 0 .4rem; font-size: .72rem; font-weight: 700; letter-spacing: .06em;
  text-transform: uppercase; color: var(--accent);
}
.inspector__row--lyric { flex-direction: column; align-items: stretch; gap: .3rem; }
.inspector__lyric {
  border: 1px solid var(--line); border-radius: 7px; padding: .4rem .55rem;
  font: inherit; width: 100%;
}
.inspector__lyric:focus { outline: none; border-color: var(--accent); }
.inspector__empty { color: var(--ink-dim); font-size: .84rem; line-height: 1.5; }

/* ═══ RESPONSIVE ═════════════════════════════════════════════ */
@media (max-width: 1100px) {
  .modes__grid { grid-template-columns: 1fr; max-width: 520px; }
  .mode-card { min-height: 0; flex-direction: row; align-items: center; gap: 1.1rem; }
  .mode-card__icon { font-size: 1.6rem; }
  .editor[data-inspector="on"] {
    grid-template-columns: 1fr;
    grid-template-areas: "topbar" "palette" "score";
  }
  .editor[data-inspector="on"] .inspector { display: none; }
  .toolbar__title { max-width: 16ch; }
}

@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; animation: none !important; }
  .view { transition: none; }
}

/* ═══ DUA / ACCESSIBILITAT ═══════════════════════════════════ */

/* Text només per a lectors de pantalla (live region, etiquetes). */
.sr-only {
  position: absolute; width: 1px; height: 1px;
  margin: -1px; padding: 0; border: 0;
  clip: rect(0 0 0 0); clip-path: inset(50%);
  overflow: hidden; white-space: nowrap;
}

/* Focus de teclat SEMPRE visible. Els :focus{outline:none} d'abans
   deixaven l'alumne que navega amb Tab sense saber on era. */
:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  border-radius: 4px;
}
.toolbar__title:focus-visible,
.inspector__lyric:focus-visible,
.toolbar__tempo-input:focus-visible { outline-offset: 0; }

/* ═══ IMPRESSIÓ · full de paper de veritat ═══════════════════
   El renderer ja pinta SVG, així que imprimir és qüestió d'amagar el
   chrome i deixar el pentagrama sol sobre blanc. Els !important són
   necessaris: ScoreView i Palette injecten el seu <style> DESPRÉS
   d'aquest full, i guanyarien per ordre de cascada.
═══════════════════════════════════════════════════════════════ */
@page { margin: 14mm; }

@media print {
  html, body { height: auto; background: #fff !important; }

  /* Només l'editor arriba al paper. */
  .view--landing, .view--modes, .view--selector { display: none !important; }
  .view--editor { position: static !important; display: block !important; opacity: 1 !important; }

  /* Fora tot el chrome: barres, inspector, menús, overlays de missió. */
  .topbar, .palette-root, .inspector, .sv-pal,
  .toolbar__menu-drop, .examples, .mission-overlay { display: none !important; }

  /* Fora l'overlay de selecció/cursor i la capa de captura del ratolí:
     el blau de la nota seleccionada no ha d'acabar imprès. */
  .sv-overlay, .sv-surface, .sv-lyric-input { display: none !important; }

  .editor {
    display: block !important;
    height: auto !important;
    grid-template-columns: none !important;
    grid-template-rows: none !important;
  }

  /* El pentagrama, sense scroll, sense ombra i sense marc. */
  .scoreview, .sv-scroll {
    overflow: visible !important;
    height: auto !important;
    padding: 0 !important;
    background: #fff !important;
  }
  .scoreview__paper, .sv-stage {
    box-shadow: none !important;
    border-radius: 0 !important;
    margin: 0 !important;
    max-width: none !important;
    min-height: 0 !important;
    background: #fff !important;
  }
  .sv-stage { width: auto !important; }
  svg { max-width: 100%; height: auto; }

  /* El vermell de "compàs incomplet" és una PISTA D'EDICIÓ, no tinta de
     partitura: en un full repartit a classe només confon. VexFlow escriu
     el color com a atribut inline, així que el neutralitzem per selector
     d'atribut (precís: no toca cap altre traç del pentagrama). */
  [stroke="#e0605e"], [fill="#e0605e"] { stroke: #000 !important; fill: #000 !important; }

  /* Capçalera impresa (títol + compositor + tempo), amagada en pantalla. */
  .print-header { display: block !important; text-align: center; margin: 0 0 10mm; }
  .print-header__title {
    font-size: 20pt; font-weight: 600; margin: 0 0 2mm; color: #000;
  }
  .print-header__meta { font-size: 10pt; color: #333; margin: 0; }

  /* Cap sistema no s'ha de partir entre dues pàgines. */
  .sv-stage, .scoreview__paper { break-inside: auto; }
}

/* En pantalla la capçalera d'impressió no existeix. */
.print-header { display: none; }

/* ═══ MODE STANDALONE (?app=1) · l'app d'escriptori ══════════
   Només Sandbox: l'eina de treball, sense el material d'aula. El botó
   "← menú" i el badge de mode no tenen sentit quan no hi ha cap menú
   ni cap altre mode al qual anar. */
body[data-standalone] .topbar__back,
body[data-standalone] .topbar__badge { display: none; }
body[data-standalone] .view--landing,
body[data-standalone] .view--modes,
body[data-standalone] .view--selector { display: none !important; }
/* El títol de la partitura passa a ser el primer element del topbar. */
body[data-standalone] .topbar { padding-left: 1.1rem; }