/* =========================================================
   Vivid Muse — sistema de diseño de la Audioguía de Museos
   Autocontenido: sin Tailwind CDN ni fuentes remotas,
   para garantizar que la app cargue también sin internet.
   ========================================================= */

:root {
  --surface: #fcf9f8;
  --surface-dim: #dcd9d9;
  --surface-container-lowest: #ffffff;
  --surface-container-low: #f6f3f2;
  --surface-container: #f0eded;
  --surface-container-high: #eae7e7;
  --surface-container-highest: #e4e2e1;
  --on-surface: #1b1c1c;
  --on-surface-variant: #5a3f48;
  --outline: #8e6f78;
  --outline-variant: #e2bdc7;
  --primary: #b70065;
  --primary-container: #e40080;
  --on-primary: #ffffff;
  --secondary: #8f4472;
  --secondary-container: #fda2d5;
  --tertiary: #755369;
  --tertiary-container: #8f6b82;
  --tertiary-fixed: #ffd8ee;
  --on-tertiary-fixed-variant: #5c3d52;
  --error: #ba1a1a;
  --error-container: #ffdad6;
  --on-error-container: #93000a;

  --radius-sm: 0.25rem;
  --radius: 0.5rem;
  --radius-md: 0.75rem;
  --radius-lg: 1rem;
  --radius-xl: 1.5rem;
  --radius-full: 9999px;

  --gutter: 16px;
  --container-margin: 20px;
  --card-padding: 20px;
  --section-gap: 40px;

  --nav-h: 64px;
  --mini-h: 76px;

  --font-display: 'Glacial Indifference', 'Avenir Next', 'Segoe UI', system-ui, -apple-system, sans-serif;
  --font-body: 'Avenir Next', 'Segoe UI', system-ui, -apple-system, sans-serif;
}

* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  background: var(--surface);
  color: var(--on-surface);
  font-family: var(--font-body);
  -webkit-tap-highlight-color: transparent;
  overscroll-behavior-y: none;
}
img { max-width: 100%; display: block; }
button { font-family: inherit; }
a { color: inherit; text-decoration: none; }

/* Marco tipo teléfono centrado en pantallas grandes */
.app-shell {
  max-width: 480px;
  margin: 0 auto;
  min-height: 100dvh;
  position: relative;
  background: var(--surface);
  box-shadow: 0 0 60px rgba(0,0,0,0.08);
  overflow-x: hidden;
}
@media (min-width: 540px) {
  body { background: var(--surface-container-high); padding: 24px 0; }
  .app-shell { min-height: calc(100dvh - 48px); border-radius: 28px; }
}

/* ---------- Encabezados ---------- */
.topbar {
  position: sticky; top: 0; z-index: 40;
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px var(--container-margin);
  background: rgba(252,249,248,0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
}
.topbar h1 {
  font-family: var(--font-display);
  font-size: 20px; font-weight: 700; margin: 0;
  letter-spacing: -0.2px;
}
.icon-btn {
  width: 40px; height: 40px; border: none; background: transparent;
  color: var(--primary); display: flex; align-items: center; justify-content: center;
  border-radius: var(--radius-full); cursor: pointer;
}
.icon-btn:active { transform: scale(0.92); background: var(--surface-container-high); }

/* ---------- Contenido ---------- */
.view { padding-bottom: calc(var(--nav-h) + 24px); }
.app-shell.has-now-playing .view { padding-bottom: calc(var(--nav-h) + var(--mini-h) + 16px); }
.container { padding: 0 var(--container-margin); }
.section-title {
  font-family: var(--font-display);
  font-size: 22px; font-weight: 700; margin: 28px 0 14px;
  letter-spacing: -0.3px;
}
.hello {
  font-family: var(--font-display);
  font-size: 30px; font-weight: 700; line-height: 1.1;
  letter-spacing: -0.5px; margin: 6px 0 2px;
}
.subtle { color: var(--on-surface-variant); font-size: 14px; }

/* ---------- Buscador ---------- */
.search-box {
  display: flex; align-items: center; gap: 10px;
  background: var(--surface-container-low);
  border: 1px solid var(--outline-variant);
  border-radius: var(--radius-lg);
  padding: 12px 14px; margin-top: 18px;
}
.search-box input {
  border: none; background: transparent; outline: none;
  font-size: 15px; width: 100%; color: var(--on-surface);
}
.search-box svg { flex-shrink: 0; color: var(--on-surface-variant); }

/* ---------- Chips de categoría ---------- */
.chip-row { display: flex; gap: 8px; overflow-x: auto; padding: 16px 0 4px; scrollbar-width: none; }
.chip-row::-webkit-scrollbar { display: none; }
.chip {
  flex-shrink: 0; padding: 9px 16px; border-radius: var(--radius-full);
  font-size: 13px; font-weight: 700; border: 1px solid var(--outline-variant);
  background: var(--surface-container-lowest); color: var(--on-surface-variant);
  cursor: pointer; white-space: nowrap;
}
.chip.active { background: var(--primary); color: #fff; border-color: var(--primary); }

/* ---------- Tarjetas de museo (Explorar) ---------- */
.museum-card {
  position: relative; border-radius: var(--radius-lg); overflow: hidden;
  height: 200px; cursor: pointer; margin-bottom: 16px;
  box-shadow: 0 8px 24px -8px rgba(27,28,28,0.25);
}
.museum-card img { width: 100%; height: 100%; object-fit: cover; }
.museum-card .overlay {
  position: absolute; inset: 0;
  background: linear-gradient(to top, rgba(0,0,0,0.78), rgba(0,0,0,0.05) 55%);
  display: flex; flex-direction: column; justify-content: flex-end; padding: 16px;
}
.museum-card .cat {
  align-self: flex-start; background: var(--primary-container); color: #fff;
  font-size: 11px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.5px;
  padding: 4px 10px; border-radius: var(--radius-full); margin-bottom: 8px;
}
.museum-card h3 { color: #fff; font-family: var(--font-display); font-size: 19px; margin: 0 0 2px; }
.museum-card p { color: rgba(255,255,255,0.8); font-size: 13px; margin: 0; }

/* ---------- Listas (pistas / recorridos) ---------- */
.list-item {
  display: flex; align-items: center; gap: 14px;
  background: var(--surface-container-low);
  padding: 12px; border-radius: var(--radius-md); margin-bottom: 10px;
  cursor: pointer; transition: background 0.15s;
}
.list-item:active { background: var(--surface-container); }
.list-item .thumb {
  width: 56px; height: 56px; border-radius: var(--radius); overflow: hidden;
  flex-shrink: 0; background: var(--surface-container-high);
  display: flex; align-items: center; justify-content: center; position: relative;
}
.list-item .thumb img { width: 100%; height: 100%; object-fit: cover; }
.list-item .info { flex: 1; min-width: 0; }
.list-item .info h4 { margin: 0; font-size: 15px; font-weight: 700; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.list-item .info p { margin: 2px 0 0; font-size: 12.5px; color: var(--on-surface-variant); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.list-item .trail { display: flex; align-items: center; gap: 10px; color: var(--on-surface-variant); flex-shrink: 0; }
.list-item.playing { background: var(--tertiary-fixed); }
.list-item.playing .info h4 { color: var(--primary); }

.eq { display: flex; gap: 2px; align-items: flex-end; height: 14px; width: 18px; }
.eq span { width: 3px; background: var(--primary); border-radius: 1px; animation: eq 1s ease-in-out infinite; }
.eq span:nth-child(2) { animation-delay: 0.2s; }
.eq span:nth-child(3) { animation-delay: 0.4s; }
@keyframes eq { 0%,100% { height: 4px; } 50% { height: 14px; } }

/* ---------- Detalle de museo (hero) ---------- */
.hero {
  position: relative; height: 260px; width: 100%; overflow: hidden;
}
.hero img { width: 100%; height: 100%; object-fit: cover; }
.hero .fade { position: absolute; inset: 0; background: linear-gradient(to top, var(--surface) 4%, rgba(0,0,0,0.1) 60%, rgba(0,0,0,0.35)); }
.hero-topbar {
  position: absolute; top: 0; left: 0; right: 0; z-index: 5;
  display: flex; justify-content: space-between; padding: 14px var(--container-margin);
}
.hero-topbar .icon-btn { background: rgba(0,0,0,0.35); color: #fff; }
.detail-header { padding: 0 var(--container-margin); margin-top: -54px; position: relative; z-index: 3; }
.detail-header .cat-pill {
  display: inline-block; background: var(--primary-container); color: #fff; font-size: 11px;
  font-weight: 700; text-transform: uppercase; padding: 4px 10px; border-radius: var(--radius-full); margin-bottom: 8px;
}
.detail-header h2 { font-family: var(--font-display); font-size: 24px; margin: 0 0 4px; color: var(--on-surface); }
.detail-header .meta { color: var(--on-surface-variant); font-size: 13.5px; }

.btn-row { display: flex; gap: 12px; margin: 18px 0 6px; }
.btn {
  border: none; border-radius: var(--radius-full); font-weight: 700; font-size: 14.5px;
  padding: 13px 18px; display: flex; align-items: center; justify-content: center; gap: 8px;
  cursor: pointer; flex: 1;
}
.btn:active { transform: scale(0.97); }
.btn-primary { background: var(--primary); color: #fff; }
.btn-ghost { background: var(--surface-container-high); color: var(--on-surface); }
.btn-ghost.downloaded { color: var(--primary); }
.btn[disabled] { opacity: 0.55; pointer-events: none; }

/* ---------- Reproductor (pantalla completa) ---------- */
.player-view { display: flex; flex-direction: column; min-height: 100dvh; padding-bottom: 24px; }
.player-handle { display: flex; justify-content: center; padding: 14px 0 6px; }
.player-handle span { width: 40px; height: 5px; border-radius: var(--radius-full); background: rgba(27,28,28,0.12); }
.player-art-wrap { padding: 10px var(--container-margin) 0; position: relative; }
.player-art {
  aspect-ratio: 1/1; border-radius: 28px; overflow: hidden;
  background: var(--primary-container);
  box-shadow: 0 30px 60px -14px rgba(183,0,101,0.35);
  display: flex; align-items: center; justify-content: center;
}
.player-art img { width: 100%; height: 100%; object-fit: cover; }
.player-meta { padding: 20px var(--container-margin) 0; display: flex; justify-content: space-between; align-items: flex-start; gap: 12px; }
.player-meta h2 { font-family: var(--font-display); font-size: 23px; margin: 0 0 4px; line-height: 1.15; }
.player-meta .sub { color: var(--primary); font-weight: 700; font-size: 14px; }
.player-progress { padding: 22px var(--container-margin) 0; }
.progress-track { position: relative; height: 8px; background: var(--outline-variant); border-radius: var(--radius-full); overflow: hidden; cursor: pointer; }
.progress-fill { position: absolute; left: 0; top: 0; height: 100%; background: var(--primary); border-radius: var(--radius-full); width: 0%; transition: width 0.15s linear; }
.progress-time { display: flex; justify-content: space-between; font-size: 12px; font-weight: 700; color: var(--on-surface-variant); margin-top: 8px; }
.player-controls { display: flex; align-items: center; justify-content: space-around; padding: 26px var(--container-margin) 0; }
.play-fab {
  width: 76px; height: 76px; border-radius: 50%; background: var(--primary); color: #fff;
  border: none; display: flex; align-items: center; justify-content: center; cursor: pointer;
  box-shadow: 0 14px 30px -8px rgba(183,0,101,0.5);
}
.play-fab:active, .ctrl-btn:active { transform: scale(0.92); }
.ctrl-btn { border: none; background: transparent; color: var(--on-surface); cursor: pointer; display: flex; }
.player-track-note { padding: 24px var(--container-margin) 0; text-align: center; color: var(--on-surface-variant); font-size: 12.5px; }

/* ---------- Mis Descargas ---------- */
.storage-card {
  background: var(--surface-container-low); border-radius: var(--radius-lg); padding: 16px;
  display: flex; align-items: center; gap: 14px; margin-top: 16px;
}
.storage-ring { width: 52px; height: 52px; border-radius: 50%; background: conic-gradient(var(--primary) calc(var(--pct,0) * 1%), var(--surface-container-high) 0); display: flex; align-items: center; justify-content: center; flex-shrink: 0; }
.storage-ring span { width: 40px; height: 40px; border-radius: 50%; background: var(--surface-container-low); display: flex; align-items: center; justify-content: center; font-size: 11px; font-weight: 700; color: var(--primary); }
.download-item {
  background: var(--surface-container-lowest); border: 1px solid var(--outline-variant);
  border-radius: var(--radius-lg); padding: 14px; display: flex; gap: 14px; margin-bottom: 12px;
  align-items: center;
}
.download-item .thumb { width: 64px; height: 64px; border-radius: var(--radius); overflow: hidden; flex-shrink: 0; }
.download-item .thumb img { width: 100%; height: 100%; object-fit: cover; }
.download-item .info { flex: 1; min-width: 0; }
.download-item .info h4 { margin: 0 0 2px; font-size: 15px; font-weight: 700; }
.download-item .info p { margin: 0; font-size: 12px; color: var(--on-surface-variant); }
.download-item .tags { display: flex; gap: 6px; margin-top: 6px; }
.download-item .tag { font-size: 9.5px; font-weight: 700; text-transform: uppercase; padding: 3px 8px; border-radius: var(--radius-full); background: var(--surface-container-high); color: var(--on-surface-variant); }
.download-item .del { background: none; border: none; color: var(--on-surface-variant); cursor: pointer; padding: 8px; }
.mini-progress { height: 4px; background: var(--surface-container-high); border-radius: var(--radius-full); overflow: hidden; margin-top: 8px; }
.mini-progress > div { height: 100%; background: var(--primary); }
.empty-state { text-align: center; padding: 60px 20px; color: var(--on-surface-variant); }
.empty-state svg { margin-bottom: 12px; color: var(--outline); }

/* ---------- Barra "Reproduciendo ahora" (mini) ---------- */
.now-playing {
  position: fixed; left: 50%; transform: translateX(-50%);
  width: min(440px, calc(100% - 32px));
  bottom: calc(var(--nav-h) + 12px); z-index: 45;
  background: rgba(255,255,255,0.75);
  backdrop-filter: blur(24px); -webkit-backdrop-filter: blur(24px);
  border: 1px solid rgba(255,255,255,0.4);
  border-radius: var(--radius-lg); box-shadow: 0 20px 40px -12px rgba(27,28,28,0.25);
  display: flex; align-items: center; gap: 12px; padding: 8px 10px;
  cursor: pointer;
}
.now-playing.hidden { display: none; }
.now-playing .thumb { width: 44px; height: 44px; border-radius: var(--radius); overflow: hidden; flex-shrink: 0; background: var(--primary-container); }
.now-playing .info { flex: 1; min-width: 0; }
.now-playing .info .label { font-size: 10px; text-transform: uppercase; letter-spacing: 0.5px; color: var(--primary); font-weight: 700; }
.now-playing .info h5 { margin: 1px 0 0; font-size: 14px; font-weight: 700; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.now-playing .ctrls { display: flex; align-items: center; gap: 4px; padding-right: 4px; }
.now-playing .ctrls button { width: 36px; height: 36px; border: none; background: transparent; color: var(--on-surface); display: flex; align-items: center; justify-content: center; cursor: pointer; }
.now-playing-bar { position: absolute; bottom: 0; left: 8px; right: 8px; height: 2px; background: var(--outline-variant); border-radius: 2px; overflow: hidden; }
.now-playing-bar > div { height: 100%; background: var(--primary); }

/* ---------- Navegación inferior ---------- */
.bottom-nav {
  position: fixed; left: 50%; transform: translateX(-50%);
  width: min(480px, 100%);
  bottom: 0; height: var(--nav-h); z-index: 50;
  background: rgba(252,249,248,0.92);
  backdrop-filter: blur(24px); -webkit-backdrop-filter: blur(24px);
  border-top: 1px solid var(--outline-variant);
  display: flex; justify-content: space-around; align-items: center;
  padding-bottom: env(safe-area-inset-bottom);
}
.nav-btn {
  background: none; border: none; display: flex; flex-direction: column; align-items: center;
  gap: 2px; color: var(--on-surface-variant); font-size: 10.5px; font-weight: 700; cursor: pointer;
  flex: 1; padding: 6px 0;
}
.nav-btn.active { color: var(--primary); }

/* ---------- Banner de conectividad ---------- */
.status-banner {
  display: flex; align-items: center; gap: 8px; justify-content: center;
  font-size: 12.5px; font-weight: 700; padding: 8px 12px;
  background: var(--on-surface); color: #fff;
}
.status-banner.online { background: var(--primary); }
.status-banner.hidden { display: none; }

/* ---------- Toast ---------- */
.toast {
  position: fixed; left: 50%; transform: translateX(-50%) translateY(10px);
  bottom: calc(var(--nav-h) + 20px); z-index: 80;
  background: var(--on-surface); color: #fff; padding: 12px 18px; border-radius: var(--radius-full);
  font-size: 13.5px; font-weight: 600; opacity: 0; pointer-events: none; transition: all 0.25s ease;
  max-width: calc(100% - 40px); text-align: center;
}
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }

/* ---------- Utilidades ---------- */
.hidden { display: none !important; }
.badge-live { display:inline-flex; align-items:center; gap:4px; font-size:11px; font-weight:700; color: var(--primary); }
.badge-live .dot { width:6px; height:6px; border-radius:50%; background: var(--primary); }

/* =========================================================
   Escritorio (>= 900px): layout tipo app de música de
   escritorio (barra lateral fija + panel de contenido ancho)
   en vez del "marco de teléfono" que se usa en móvil/tablet.
   ========================================================= */
.nav-brand { display: none; }

@media (min-width: 900px) {
  body { padding: 0; background: var(--surface); }

  .app-shell {
    max-width: 1180px;
    min-height: 100dvh;
    border-radius: 0;
    box-shadow: none;
    display: grid;
    grid-template-columns: 236px 1fr;
    align-items: start;
  }

  #status-banner { grid-column: 2; }
  #view-root { grid-column: 2; min-width: 0; }

  .bottom-nav {
    position: sticky; top: 0; left: auto; transform: none;
    grid-column: 1; grid-row: 1 / -1;
    width: 236px; height: 100dvh;
    flex-direction: column; align-items: stretch; justify-content: flex-start;
    gap: 4px; padding: 22px 14px;
    background: var(--surface-container-low);
    border-top: none; border-right: 1px solid var(--outline-variant);
    backdrop-filter: none;
  }
  .nav-brand {
    display: flex; align-items: center; gap: 8px;
    font-family: var(--font-display); font-weight: 700; font-size: 17px;
    padding: 8px 10px 22px; color: var(--primary);
  }
  .nav-btn {
    flex-direction: row; justify-content: flex-start; gap: 12px;
    padding: 12px 14px; border-radius: var(--radius-md); font-size: 14px;
  }
  .nav-btn.active { background: var(--tertiary-fixed); }

  .container { max-width: 760px; }

  #now-playing { left: calc(50% + 118px); bottom: 24px; }
  .toast { left: calc(50% + 118px); }

  /* Explorar: cuadrícula de tarjetas en vez de lista apilada */
  #museum-list {
    display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 16px;
  }
  .museum-card { margin-bottom: 0; height: 220px; }

  /* Reproductor: tarjeta centrada, no a todo lo ancho */
  .player-view { max-width: 460px; margin: 0 auto; }

  /* Detalle: descripción con mejor longitud de línea */
  .detail-header > p.subtle { max-width: 640px; }
}

@media (min-width: 1300px) {
  .app-shell { max-width: 1320px; }
  .container { max-width: 900px; }
  #museum-list { grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); }
}