/* GuitarQuest — escenario de concierto sobre la paleta Midnight Studio (focos, marquesina, afiches, setlists).
   Oscuro y sobrio: el violeta marca la identidad y lo que hay que hacer; el cian, la señal de audio y la
   información musical; verde, amarillo y rojo solo para estados (correcto, casi, error).
   Los colores del canvas viven en ui/canvas.js (COLORS) con los mismos valores. */

/* ================= 1. Tokens ================= */
:root {
  /* Color */
  --bg: #101216;
  --bg-2: #141923;
  --surface: #1A2030;
  --surface-2: #20283A;
  --surface-3: #262F44;
  --line: #30394D;
  --line-soft: rgba(48, 57, 77, .55);
  --text: #F3F5FA;
  --dim: #A3AEC2;
  --faint: #6F7A90;
  --violet: #A78BFA;
  --violet-hi: #BBA4FC;
  --violet-deep: #7C5CE0;
  --violet-a: rgba(167, 139, 250, .14);
  --cyan: #67E8F9;
  --cyan-a: rgba(103, 232, 249, .12);
  --green: #7CE7B0;
  --green-a: rgba(124, 231, 176, .12);
  --yellow: #F5C76E;
  --yellow-a: rgba(245, 199, 110, .12);
  --red: #FF7C8A;
  --red-a: rgba(255, 124, 138, .12);
  --ink: #0B0D12;

  /* Tipografía */
  --font-ui: 'Geist', system-ui, -apple-system, 'Segoe UI', sans-serif;
  --font-display: 'Big Shoulders Display', 'Geist', system-ui, sans-serif;
  --fs-xs: 12px; --fs-sm: 13.5px; --fs-md: 15px; --fs-lg: 17px; --fs-xl: 21px; --fs-2xl: 28px; --fs-3xl: 36px;

  /* Espacio y forma */
  --s-1: 4px; --s-2: 8px; --s-3: 12px; --s-4: 16px; --s-5: 24px; --s-6: 32px; --s-7: 48px;
  --r-sm: 8px; --r-md: 12px; --r-lg: 16px; --r-xl: 22px; --r-pill: 999px;

  /* Profundidad */
  --sh-1: 0 1px 0 rgba(255, 255, 255, .025) inset, 0 1px 2px rgba(0, 0, 0, .35);
  --sh-2: 0 1px 0 rgba(255, 255, 255, .03) inset, 0 14px 32px -18px rgba(0, 0, 0, .8);
  --glow-violet: 0 0 0 1px rgba(167, 139, 250, .35), 0 10px 30px -12px rgba(167, 139, 250, .5);

  /* Movimiento: interacciones cortas, contenido algo más largo */
  --ease: cubic-bezier(.2, .8, .2, 1);
  --ease-pop: cubic-bezier(.2, 1.4, .4, 1);
  --t-fast: 140ms; --t-med: 240ms; --t-slow: 420ms;

  /* Estructura */
  --top-h: 64px;
  --tab-h: 62px;
  --safe-t: env(safe-area-inset-top, 0px);
  --safe-b: env(safe-area-inset-bottom, 0px);
}

/* ================= 2. Base ================= */
* { box-sizing: border-box; }
html, body { margin: 0; height: 100%; }
body {
  background:
    radial-gradient(1200px 600px at 85% -10%, rgba(167, 139, 250, .07), transparent 60%),
    radial-gradient(900px 500px at -10% 110%, rgba(103, 232, 249, .04), transparent 60%),
    var(--bg);
  color: var(--text);
  font: 400 var(--fs-md)/1.5 var(--font-ui);
  font-feature-settings: 'ss01';
  overflow: hidden;
  touch-action: manipulation;      /* sin zoom por doble toque */
  -webkit-tap-highlight-color: transparent;
  user-select: none;
  overscroll-behavior: none;
  -webkit-font-smoothing: antialiased;
}
h1, h2, h3 { margin: 0; font-weight: 600; letter-spacing: -.01em; }
p { margin: 0; }
button { font: inherit; color: inherit; cursor: pointer; border: 0; background: none; padding: 0; }
button:disabled { cursor: default; }
input[type=range] { accent-color: var(--violet); }
.num, .hud-score b, .combo, .metro-num b, .stat b, .pgrid b, .rstats b, .xp-chip b, .lc-best, .lc-num, .week i { font-variant-numeric: tabular-nums; }
[hidden] { display: none !important; }
:focus { outline: none; }
:focus-visible { outline: 2px solid var(--violet); outline-offset: 2px; border-radius: var(--r-sm); }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.ic { width: 20px; height: 20px; flex: none; fill: none; stroke: currentColor; stroke-width: 1.75; stroke-linecap: round; stroke-linejoin: round; }

/* Barras de desplazamiento discretas */
* { scrollbar-width: thin; scrollbar-color: var(--line) transparent; }
::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-thumb { background: var(--line); border-radius: 4px; }

/* ================= 3. Componentes ================= */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: var(--s-2);
  min-height: 44px; padding: 0 18px; border-radius: var(--r-md);
  font-weight: 600; font-size: var(--fs-md); line-height: 1.2; text-align: center;
  background: var(--surface-2); border: 1px solid var(--line); color: var(--text);
  box-shadow: var(--sh-1);
  transition: background var(--t-fast), border-color var(--t-fast), transform var(--t-fast) var(--ease), box-shadow var(--t-med);
}
.btn:hover:not(:disabled) { background: var(--surface-3); border-color: #414c64; }
.btn:active:not(:disabled) { transform: scale(.97); }
.btn:disabled { opacity: .45; }
.btn .ic { width: 18px; height: 18px; }
.btn.primary { background: var(--violet); border-color: transparent; color: var(--ink); box-shadow: 0 8px 22px -12px rgba(167, 139, 250, .8); }
.btn.primary:hover:not(:disabled) { background: var(--violet-hi); border-color: transparent; }
.btn.ghost { background: transparent; border-color: transparent; box-shadow: none; color: var(--dim); }
.btn.ghost:hover:not(:disabled) { background: var(--surface); color: var(--text); border-color: transparent; }
.btn.sm { min-height: 36px; padding: 0 12px; font-size: var(--fs-sm); border-radius: 10px; }
.btn.lg { min-height: 52px; padding: 0 24px; font-size: var(--fs-lg); border-radius: 14px; }
.icon-btn { width: 40px; height: 40px; display: grid; place-items: center; border-radius: var(--r-md); color: var(--dim); transition: background var(--t-fast), color var(--t-fast); }
.icon-btn:hover, .icon-btn.on { background: var(--surface); color: var(--text); }

.card { background: var(--surface); border: 1px solid var(--line-soft); border-radius: var(--r-lg); padding: var(--s-4) 18px; box-shadow: var(--sh-2); }

.chip {
  display: inline-flex; align-items: center; gap: 6px; padding: 4px 10px; border-radius: var(--r-pill);
  font-size: var(--fs-xs); font-weight: 600; letter-spacing: .01em;
  background: var(--violet-a); color: var(--violet-hi);
}
.chip .ic { width: 14px; height: 14px; }
.chip.cyan { background: var(--cyan-a); color: var(--cyan); }
.chip.green { background: var(--green-a); color: var(--green); }
.chip.muted { background: var(--surface-2); color: var(--dim); }

.bar { height: 6px; border-radius: var(--r-pill); background: var(--surface-2); overflow: hidden; }
.bar i { display: block; height: 100%; width: 0; border-radius: inherit; background: linear-gradient(90deg, var(--violet-deep), var(--violet)); transition: width var(--t-slow) var(--ease); }

.eyebrow { color: var(--dim); font-size: var(--fs-sm); font-weight: 500; }
.section-head { display: flex; align-items: center; justify-content: space-between; gap: var(--s-3); }
.section-head h3 { display: flex; align-items: center; gap: var(--s-2); font-size: var(--fs-lg); }
.section-head h3 .ic { color: var(--cyan); }
.stat-note { color: var(--dim); font-size: var(--fs-sm); margin-top: 6px; }

/* ================= 4. Estructura: escenario + marquesina ================= */
.app {
  position: relative;
  height: 100dvh;
  display: grid; grid-template-columns: minmax(0, 1fr); grid-template-rows: auto minmax(0, 1fr) auto;
  padding-top: var(--safe-t);
}
.marquee, .stage, .tabbar { position: relative; z-index: 1; }

/* --- Escenario de fondo: truss con focos y cañones de luz ---
   --lvl (0..1) lo escribe ui/stage.js con el volumen real del micrófono; data-fx = destello por evento. */
.stage-bg {
  --lvl: 0; --fxc: 124, 231, 176;
  position: fixed; inset: 0; z-index: 0; pointer-events: none; overflow: hidden;
  background:
    radial-gradient(90% 55% at 50% 118%, rgba(167, 139, 250, .1), transparent 62%),
    linear-gradient(180deg, #0A0C11 0%, #101216 45%, #13161F 100%);
}
.truss {
  position: absolute; top: 0; left: 0; right: 0; height: 12px; display: flex; justify-content: space-around;
  background: repeating-linear-gradient(90deg, #1A1F2C 0 16px, #0E1117 16px 20px);
  border-bottom: 1px solid #262D3E;
}
.truss i { width: 28px; height: 18px; margin-top: 6px; border-radius: 3px 3px 10px 10px; background: linear-gradient(180deg, #2A3145, #171B26); box-shadow: 0 6px 14px -4px rgba(167, 139, 250, calc(.15 + var(--lvl) * .5)); }
.beam {
  --c: 167, 139, 250;
  position: absolute; top: 14px; width: 44vw; height: 125vh; margin-left: -22vw;
  transform-origin: 50% 0;
  background: linear-gradient(180deg, rgba(var(--c), calc(.15 + var(--lvl) * .2)) 0%, rgba(var(--c), calc(.05 + var(--lvl) * .06)) 45%, rgba(var(--c), 0) 78%);
  clip-path: polygon(47% 0, 53% 0, 100% 100%, 0 100%);
  animation: sway 18s ease-in-out infinite alternate;
}
.b1 { left: 12.5%; transform: rotate(16deg); }
.b2 { left: 37.5%; transform: rotate(5deg); --c: 103, 232, 249; animation-delay: -6s; animation-duration: 22s; }
.b3 { left: 62.5%; transform: rotate(-5deg); animation-delay: -11s; animation-duration: 20s; }
.b4 { left: 87.5%; transform: rotate(-16deg); --c: 103, 232, 249; animation-delay: -3s; }
@keyframes sway { 0% { rotate: -3deg; } 100% { rotate: 3deg; } }
.floor { position: absolute; left: -10%; right: -10%; bottom: -24vh; height: 48vh; background: radial-gradient(50% 42% at 50% 0%, rgba(167, 139, 250, calc(.05 + var(--lvl) * .14)), transparent 72%); }
/* Destello de evento: aparece de golpe y se apaga suave */
.stage-bg::after {
  content: ''; position: absolute; inset: 0; opacity: 0;
  background: radial-gradient(75% 55% at 50% 0%, rgba(var(--fxc), .24), transparent 70%);
  transition: opacity .45s var(--ease);
}
.stage-bg[data-fx=hit]::after, .stage-bg[data-fx=miss]::after, .stage-bg[data-fx=encore]::after { opacity: 1; transition: none; }
.stage-bg[data-fx=miss] { --fxc: 255, 124, 138; }
.stage-bg[data-fx=encore] { --fxc: 243, 245, 250; }
.stage-bg[data-fx=encore] .beam { --c: 243, 245, 250; }
/* Durante el ejercicio y en el afinador: luces quietas y tenues, para no distraer */
.app:has(.screen:not([hidden]) :is(.play, .lesson):not([hidden])) .beam,
.app:has(#scr-afinador:not([hidden])) .beam { animation-play-state: paused; opacity: .45; }

/* --- Marquesina --- */
.marquee {
  display: grid; grid-template-columns: auto minmax(0, 1fr) auto; align-items: center; gap: var(--s-5);
  height: var(--top-h); padding: 0 var(--s-5);
  background: linear-gradient(180deg, rgba(10, 12, 17, .94), rgba(10, 12, 17, .78));
  border-bottom: 1px solid rgba(255, 255, 255, .06);
}
/* Fila de focos de la marquesina */
.marquee::after {
  content: ''; position: absolute; left: 0; right: 0; bottom: -4px; height: 3px;
  background: radial-gradient(circle, rgba(245, 199, 110, .55) 0 1.2px, transparent 1.7px) 0 0 / 16px 3px repeat-x;
  opacity: .5;
}
.brand { display: flex; align-items: center; gap: 10px; padding: 4px 6px; border-radius: var(--r-md); text-align: left; }
.brand-mark {
  width: 34px; height: 34px; border-radius: 10px; display: grid; place-items: center; flex: none;
  background: linear-gradient(145deg, var(--violet-hi), var(--violet-deep));
  color: var(--ink); box-shadow: 0 6px 18px -8px rgba(167, 139, 250, .7);
}
.brand-mark .ic { width: 18px; height: 18px; fill: rgba(11, 13, 18, .18); stroke-width: 2; }
.brand-name { font: 800 26px/1 var(--font-display); text-transform: uppercase; letter-spacing: .02em; }
.brand-name b { color: var(--violet); font-weight: 800; }
.crumb { display: none; min-width: 0; }
.crumb h1 { font: 800 24px/1 var(--font-display); text-transform: uppercase; letter-spacing: .02em; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.nav { display: flex; justify-content: center; gap: 2px; }
.nav button {
  position: relative; display: flex; align-items: center; gap: 8px;
  height: var(--top-h); padding: 0 14px;
  color: var(--dim); font: 700 19px/1 var(--font-display); text-transform: uppercase; letter-spacing: .05em;
  transition: color var(--t-fast);
}
.nav button .ic { display: none; }
.nav button:hover { color: var(--text); }
.nav button.on { color: var(--text); }
/* La sección activa queda bajo un foco */
.nav button.on::before { content: ''; position: absolute; inset: 0; background: radial-gradient(60% 90% at 50% 0%, rgba(167, 139, 250, .28), transparent 70%); pointer-events: none; }
.nav button.on::after { content: ''; position: absolute; left: 14px; right: 14px; bottom: 0; height: 3px; border-radius: 3px 3px 0 0; background: var(--violet); box-shadow: 0 0 12px rgba(167, 139, 250, .8); }
.hud-right { display: flex; align-items: center; gap: 10px; }

.mic-pill {
  display: inline-flex; align-items: center; gap: var(--s-2); height: 36px; padding: 0 12px 0 10px;
  border-radius: var(--r-pill); background: rgba(26, 32, 48, .8); border: 1px solid var(--line-soft);
  color: var(--faint); font-size: var(--fs-sm); font-weight: 500;
}
.mic-pill .ic { width: 16px; height: 16px; }
.mic-pill[data-on] { color: var(--dim); }
.mic-pill[data-on] .ic { color: var(--cyan); }
.mic-meter { width: 44px; height: 6px; border-radius: var(--r-pill); background: var(--surface-2); overflow: hidden; }
.mic-meter i { display: block; height: 100%; background: var(--faint); transform-origin: left; transform: scaleX(0); transition: background var(--t-fast); }
.mic-meter i.over { background: var(--cyan); }
.xp-chip {
  display: flex; align-items: center; gap: 10px; height: 36px; padding: 0 12px;
  border-radius: var(--r-pill); background: rgba(26, 32, 48, .8); border: 1px solid var(--line-soft);
  transition: border-color var(--t-fast), background var(--t-fast);
}
.xp-chip:hover, .xp-chip.on { border-color: var(--violet); }
.xp-chip > * { flex-shrink: 0; }
.xp-chip b { font: 800 17px/1 var(--font-display); letter-spacing: .03em; color: var(--text); white-space: nowrap; text-transform: uppercase; }
.streak { display: inline-flex; align-items: center; gap: 4px; font: 800 17px/1 var(--font-display); color: var(--yellow); white-space: nowrap; }
.streak .ic { width: 15px; height: 15px; }
.xp-bar { width: 64px; height: 6px; border-radius: var(--r-pill); background: var(--surface-2); overflow: hidden; }
.xp-bar i { display: block; height: 100%; width: 0; background: var(--violet); transition: width var(--t-slow) var(--ease); }

/* Barra inferior (celular) */
.tabbar { display: none; }

/* Pantallas */
.stage { overflow: hidden; min-height: 0; }
.screen { position: absolute; inset: 0; overflow-y: auto; padding-bottom: var(--safe-b); }
.screen.enter { animation: screenIn var(--t-med) var(--ease) both; }
@keyframes screenIn { from { opacity: 0; transform: translateY(6px); } }

/* Títulos de afiche: condensados y en mayúsculas (solo títulos; los nombres de acorde nunca) */
.levels-head h2, .home-greet h2, .result-card h2, .lesson-body h2, .plevel h2, .tour-head h3, .setcard h3, .metro-title h3 {
  font-family: var(--font-display); font-weight: 800; text-transform: uppercase; letter-spacing: .01em;
}

/* ================= 5. Inicio: tu gira ================= */
.home { max-width: 1180px; margin: 0 auto; padding: 36px var(--s-6) var(--s-7); display: grid; gap: 20px; }
.home-greet h2 { font-size: clamp(28px, 3.4vw, 42px); line-height: 1; margin-top: 6px; max-width: 32ch; }
.eyebrow { color: var(--cyan); font-size: var(--fs-sm); font-weight: 600; }

/* Afiche del próximo show + talón de boleto */
.poster {
  position: relative; overflow: hidden; isolation: isolate;
  display: grid; grid-template-columns: minmax(0, 1fr) 230px;
  border-radius: 20px; border: 1px solid rgba(255, 255, 255, .08);
  background:
    radial-gradient(70% 120% at 18% -20%, rgba(167, 139, 250, .38), transparent 60%),
    radial-gradient(50% 80% at 100% 120%, rgba(103, 232, 249, .12), transparent 60%),
    linear-gradient(160deg, #1B1730, #11131B 60%);
  box-shadow: 0 30px 60px -30px rgba(0, 0, 0, .9);
}
/* Grano de afiche impreso (SVG en línea, sin archivos) */
.poster::before {
  content: ''; position: absolute; inset: 0; z-index: -1; opacity: .18; mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='2'/%3E%3C/filter%3E%3Crect width='120' height='120' filter='url(%23n)'/%3E%3C/svg%3E");
}
.poster-main { padding: 30px 32px 28px; display: flex; flex-direction: column; gap: 12px; min-width: 0; }
.poster-k { display: inline-flex; align-items: center; gap: 8px; color: var(--cyan); font-weight: 600; font-size: var(--fs-sm); }
.poster-k .ic { width: 18px; height: 18px; }
.poster h3 { font: 900 clamp(48px, 7.2vw, 104px)/.88 var(--font-display); text-transform: uppercase; letter-spacing: -.005em; max-width: 14ch; text-wrap: balance; }
.poster .nc-detail { color: var(--dim); font-size: var(--fs-lg); max-width: 46ch; }
.nc-reason { display: flex; gap: var(--s-2); align-items: flex-start; color: var(--text); max-width: 52ch; }
.nc-reason .ic { color: var(--cyan); margin-top: 1px; }
.nc-actions { margin-top: auto; padding-top: 10px; display: flex; flex-wrap: wrap; gap: var(--s-3); align-items: center; }
.nc-actions .btn.primary .ic { transition: transform var(--t-fast) var(--ease); }
.nc-actions .btn.primary:hover .ic { transform: translateX(3px); }
.poster-stub {
  margin: 0; padding: 28px 24px; display: grid; align-content: center; gap: 4px;
  border-left: 2px dashed rgba(255, 255, 255, .16); background: rgba(10, 12, 17, .35);
  /* muescas del boleto arriba y abajo de la línea punteada */
  -webkit-mask: radial-gradient(circle 12px at 0 0, transparent 98%, #000) top left / 100% 51% no-repeat, radial-gradient(circle 12px at 0 100%, transparent 98%, #000) bottom left / 100% 51% no-repeat;
          mask: radial-gradient(circle 12px at 0 0, transparent 98%, #000) top left / 100% 51% no-repeat, radial-gradient(circle 12px at 0 100%, transparent 98%, #000) bottom left / 100% 51% no-repeat;
}
.poster-stub dt { color: var(--faint); font-size: var(--fs-xs); font-weight: 600; margin-top: 8px; }
.poster-stub dt:first-child { margin-top: 0; }
.poster-stub dd { margin: 0; font: 800 26px/1.05 var(--font-display); text-transform: uppercase; letter-spacing: .02em; }

/* Monitor de escenario: tres lecturas en una sola consola */
.monitor {
  display: grid; grid-template-columns: 1fr 1fr 1.4fr;
  border-radius: 16px; overflow: hidden; border: 1px solid rgba(255, 255, 255, .07);
  background: linear-gradient(180deg, rgba(14, 17, 24, .92), rgba(11, 13, 18, .92));
}
.mon { padding: 18px 20px; display: grid; gap: 6px; align-content: start; }
.mon + .mon { border-left: 1px solid rgba(255, 255, 255, .06); }
.mon-k { display: flex; align-items: center; justify-content: space-between; gap: var(--s-2); color: var(--dim); font-size: var(--fs-sm); font-weight: 500; }
.mon-k > span { display: inline-flex; align-items: center; gap: 6px; }
.mon-k .ic { width: 16px; height: 16px; color: var(--yellow); }
.mon-k b { color: var(--text); font-weight: 600; font-variant-numeric: tabular-nums; }
.mon-big { font: 900 58px/.9 var(--font-display); letter-spacing: -.01em; font-variant-numeric: tabular-nums; }
.mon-big small { font: 700 20px var(--font-display); color: var(--dim); margin-left: 6px; text-transform: uppercase; letter-spacing: .03em; }
.goal { display: flex; align-items: center; gap: var(--s-2); font-size: var(--fs-sm); color: var(--dim); margin-top: 4px; }
.goal .tick { width: 20px; height: 20px; border-radius: 50%; display: grid; place-items: center; border: 1.5px solid var(--line); flex: none; }
.goal .tick .ic { width: 13px; height: 13px; stroke-width: 2.4; opacity: 0; }
.goal.done { color: var(--text); }
.goal.done .tick { background: var(--green); border-color: var(--green); color: var(--ink); }
.goal.done .tick .ic { opacity: 1; }

/* Gráfica de semana: barras reales por día, como medidores LED */
.week { display: grid; grid-template-columns: repeat(7, 1fr); gap: 6px; align-items: end; height: 78px; margin-top: 2px; }
.week.wide { grid-template-columns: repeat(14, 1fr); height: 110px; }
.week > div { display: grid; grid-template-rows: 1fr auto; gap: 6px; height: 100%; text-align: center; }
.week .col { position: relative; display: flex; align-items: flex-end; justify-content: center; }
.week i {
  display: block; width: 100%; max-width: 26px; min-height: 3px; border-radius: 3px; font-style: normal;
  background: var(--surface-2); transform-origin: bottom; animation: grow var(--t-slow) var(--ease) both;
}
.week i.on { background: repeating-linear-gradient(0deg, var(--violet) 0 5px, transparent 5px 7px); box-shadow: 0 0 14px -2px rgba(167, 139, 250, .5); }
.week span { font: 700 13px/1 var(--font-display); color: var(--faint); letter-spacing: .04em; }
.week .today span { color: var(--text); }
.week .today i:not(.on) { background: transparent; border: 1.5px dashed var(--line); min-height: 10px; }
@keyframes grow { from { transform: scaleY(0); } }

/* Prueba de sonido (micrófono) */
.soundcheck {
  display: grid; grid-template-columns: auto minmax(0, 1fr) auto; gap: var(--s-4); align-items: center;
  padding: 18px 22px; border-radius: 16px;
  background: linear-gradient(90deg, rgba(103, 232, 249, .1), rgba(26, 32, 48, .6) 55%);
  border: 1px solid rgba(103, 232, 249, .22);
}
.soundcheck h3 { font: 800 24px/1 var(--font-display); text-transform: uppercase; letter-spacing: .02em; }
.soundcheck p { color: var(--dim); font-size: var(--fs-sm); margin-top: 4px; max-width: 72ch; }
.mic-card-ic { width: 46px; height: 46px; border-radius: 50%; display: grid; place-items: center; background: var(--cyan-a); color: var(--cyan); }
.soundcheck .error-card { grid-column: 1 / -1; }
.error-card { padding: 16px 18px; border-radius: var(--r-md); background: var(--red-a); border: 1px solid rgba(255, 124, 138, .35); }
.error-card h3 { color: var(--red); font: 600 var(--fs-md) var(--font-ui); text-transform: none; margin-bottom: 4px; }
.error-card p { color: #F2DADD; margin-bottom: 12px; font-size: var(--fs-sm); }

/* La gira: cuatro paradas unidas por una línea */
.tour-head { display: flex; align-items: baseline; justify-content: space-between; gap: var(--s-3); margin-top: 8px; }
.tour-head h3 { font-size: 30px; line-height: 1; }
.tour { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); position: relative; }
.tour::before { content: ''; position: absolute; left: 12.5%; right: 12.5%; top: 31px; height: 2px; background: repeating-linear-gradient(90deg, rgba(255, 255, 255, .22) 0 8px, transparent 8px 14px); }
.stop {
  position: relative; width: 100%; display: grid; justify-items: center; gap: 6px; text-align: center;
  padding: 0 12px 18px; border-radius: 16px; transition: background var(--t-med);
}
.stop:hover { background: radial-gradient(70% 80% at 50% 0%, rgba(167, 139, 250, .14), transparent 70%); }
.stop-n {
  width: 64px; height: 64px; border-radius: 50%; display: grid; place-items: center; position: relative; z-index: 1;
  font: 900 28px/1 var(--font-display); background: #12151D; border: 2px solid var(--line); color: var(--dim);
  transition: transform var(--t-med) var(--ease), border-color var(--t-fast);
}
.stop:hover .stop-n { transform: translateY(-3px); border-color: var(--violet); }
.here .stop-n { background: var(--violet); border-color: var(--violet); color: var(--ink); box-shadow: 0 0 0 8px rgba(167, 139, 250, .15), 0 0 40px rgba(167, 139, 250, .5); }
.done .stop-n { border-color: var(--green); color: var(--green); }
.stop-ic { color: var(--cyan); margin-top: 6px; }
.stop b { font: 800 24px/1 var(--font-display); text-transform: uppercase; letter-spacing: .03em; }
.stop-t { color: var(--dim); font-size: var(--fs-sm); }
.stop .bar { width: 70%; }
.stop .chip { margin-top: 2px; }

.home-row { display: grid; grid-template-columns: 1fr 1fr; gap: var(--s-6); }
.setcard { border-top: 2px solid rgba(255, 255, 255, .1); padding-top: 14px; }
.setcard h3 { font-size: 22px; margin-bottom: 8px; color: var(--dim); }
.alt-list { display: grid; }
.alt { display: grid; grid-template-columns: auto minmax(0, 1fr) auto; gap: var(--s-3); align-items: center; padding: 12px 8px; border-bottom: 1px dashed rgba(255, 255, 255, .08); text-align: left; transition: background var(--t-fast); }
.alt:hover { background: linear-gradient(90deg, rgba(167, 139, 250, .1), transparent); }
.tile-ic { width: 38px; height: 38px; border-radius: var(--r-md); display: grid; place-items: center; background: var(--surface); color: var(--cyan); }
.alt b { display: block; font: 800 20px/1.1 var(--font-display); text-transform: uppercase; letter-spacing: .02em; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.alt span { display: block; font-size: var(--fs-sm); color: var(--dim); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.alt > .ic { color: var(--faint); }
.ach-next { display: grid; grid-template-columns: auto minmax(0, 1fr); gap: var(--s-3); align-items: center; padding: 8px 0; }
.ach-ic { width: 44px; height: 44px; border-radius: 50%; display: grid; place-items: center; background: var(--surface); color: var(--faint); border: 1px dashed var(--line); }
.ach-ic.on { background: var(--yellow-a); color: var(--yellow); border: 1px solid rgba(245, 199, 110, .35); }
.ach-next b { display: block; font: 800 20px/1.1 var(--font-display); text-transform: uppercase; letter-spacing: .02em; }
.ach-next span { color: var(--dim); font-size: var(--fs-sm); }
.ach-next .bar { margin-top: 10px; grid-column: 1 / -1; }

.nag { display: flex; align-items: center; gap: var(--s-3); flex-wrap: wrap; padding: 12px 16px; border: 1px solid var(--line-soft); border-radius: var(--r-md); background: rgba(26, 32, 48, .7); font-size: var(--fs-sm); }
.nag > .ic { color: var(--cyan); }
.nag p { flex: 1; min-width: 200px; color: var(--dim); }
.nag div { display: flex; gap: var(--s-2); }
.small { color: var(--faint); font-size: var(--fs-sm); }
.ver { margin-left: 6px; }

/* ================= 6. Afinador ================= */
/* minmax(0,1fr): sin esto la fila crece al tamaño interno del canvas (×DPR) y se sale de la pantalla */
.tuner { position: absolute; inset: 0; display: grid; grid-template-rows: minmax(0, 1fr) auto; }
.tuner canvas { width: 100%; height: 100%; min-height: 0; display: block; touch-action: none; }
.tuner-bar {
  display: flex; align-items: center; justify-content: space-between; gap: var(--s-3);
  padding: 10px var(--s-5) calc(10px + var(--safe-b)); border-top: 1px solid var(--line-soft); color: var(--dim); font-size: var(--fs-sm);
}
.tuner-bar .btn { white-space: nowrap; flex: none; }

/* ================= 7. Listas de niveles: el setlist ================= */
.levels { max-width: 1180px; margin: 0 auto; padding: 32px var(--s-6) var(--s-7); }
.levels-head { margin-bottom: var(--s-5); }
.levels-head h2 { font-size: clamp(40px, 5vw, 64px); line-height: .92; margin-bottom: 10px; }
.levels-head p { color: var(--dim); max-width: 68ch; }
.howto { list-style: none; margin: 0 0 var(--s-6); padding: 0; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: var(--s-4); }
.howto li { display: flex; gap: var(--s-3); align-items: flex-start; font-size: var(--fs-sm); color: var(--dim); }
.howto b { flex: none; font: 900 34px/.8 var(--font-display); color: var(--violet); }
.level-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(min(100%, 500px), 1fr)); gap: 0 var(--s-6); }
.level-group { grid-column: 1 / -1; display: flex; align-items: center; gap: var(--s-3); margin: var(--s-6) 0 6px; font: 800 24px/1 var(--font-display); text-transform: uppercase; letter-spacing: .04em; color: var(--cyan); }
.level-group::after { content: ''; flex: 1; height: 2px; background: repeating-linear-gradient(90deg, rgba(103, 232, 249, .3) 0 8px, transparent 8px 14px); }
.level-group:first-child { margin-top: 0; }

/* Una fila del setlist: número · título · estado */
.level-card {
  position: relative; display: grid; grid-template-columns: 70px minmax(0, 1fr) auto; gap: var(--s-4); align-items: center;
  width: 100%; text-align: left; padding: 16px 14px 16px 10px;
  border-bottom: 1px dashed rgba(255, 255, 255, .1);
  transition: background var(--t-med), transform var(--t-med) var(--ease);
}
.level-card:not(.locked):hover { background: linear-gradient(90deg, rgba(167, 139, 250, .1), transparent 80%); }
.level-card:not(.locked):hover .lc-num { color: var(--violet); }
.level-card:not(.locked):active { transform: scale(.99); }
/* Tu turno: el foco cae sobre esta fila */
.level-card.next { background: radial-gradient(60% 140% at 0% 50%, rgba(167, 139, 250, .22), transparent 70%); }
.level-card.next::before { content: ''; position: absolute; left: 0; top: 12px; bottom: 12px; width: 3px; border-radius: 3px; background: var(--violet); box-shadow: 0 0 14px rgba(167, 139, 250, .8); }
.level-card.locked { opacity: .42; }
.lc-num { font: 900 52px/.85 var(--font-display); color: var(--faint); font-variant-numeric: tabular-nums; transition: color var(--t-fast); text-align: right; }
.level-card.next .lc-num { color: var(--violet); }
.level-card.done .lc-num { color: var(--dim); }
.lc-main { display: grid; gap: 4px; min-width: 0; }
.lc-name { font: 800 25px/1 var(--font-display); text-transform: uppercase; letter-spacing: .02em; }
.lc-desc { color: var(--dim); font-size: var(--fs-sm); }
.lc-chords { display: flex; flex-wrap: wrap; gap: 4px; margin-top: 2px; }
.lc-chords i { font: 800 15px/1 var(--font-display); font-style: normal; letter-spacing: .02em; padding: 4px 8px; border-radius: 5px; background: var(--cyan-a); color: var(--cyan); }
.lc-side { display: grid; justify-items: end; gap: 6px; }
.lc-stars { display: inline-flex; gap: 2px; }
.lc-stars .ic { width: 17px; height: 17px; color: var(--surface-3); fill: currentColor; stroke: none; }
.lc-stars .ic.on { color: var(--yellow); }
.lc-best { font-size: var(--fs-xs); color: var(--dim); white-space: nowrap; }
.lc-lock { display: inline-flex; align-items: center; gap: 4px; color: var(--faint); font-size: var(--fs-xs); font-weight: 600; }
.lc-lock .ic { width: 14px; height: 14px; }

/* ================= 8. Partida ================= */
.play {
  position: absolute; inset: 0; display: grid; grid-template-columns: minmax(0, 1fr);
  grid-template-rows: auto auto minmax(0, 1fr) auto auto;
  padding: 12px var(--s-5) calc(12px + var(--safe-b)); gap: 10px;
}
.hud { display: flex; align-items: center; gap: var(--s-4); }
.hud .back { padding-left: 8px; }
.hud-level { flex: 1; min-width: 0; }
.hud-level span { font-weight: 600; display: block; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.rounds { display: flex; gap: 5px; margin-top: 6px; flex-wrap: wrap; }
.rounds i { width: 10px; height: 10px; border-radius: 50%; background: var(--surface-2); border: 1px solid var(--line); transition: background var(--t-fast), transform var(--t-fast); }
.rounds i.ok { background: var(--green); border-color: var(--green); }
.rounds i.late { background: var(--yellow); border-color: var(--yellow); }
.rounds i.miss { background: var(--red); border-color: var(--red); border-radius: 2px; transform: rotate(45deg) scale(.85); }
.rounds i.skip { background: transparent; border-style: dashed; border-color: var(--faint); }
.rounds i.now { border-color: var(--violet); box-shadow: 0 0 0 3px rgba(167, 139, 250, .25); }
.hud-score { text-align: right; }
.hud-score span { display: block; font-size: var(--fs-xs); color: var(--dim); }
.hud-score b { font-size: 22px; font-weight: 650; line-height: 1.1; }
.combo {
  --glow: 0;
  min-width: 64px; height: 42px; padding: 0 12px; display: grid; place-items: center;
  border-radius: var(--r-md); background: var(--surface-2); border: 1px solid var(--line);
  font-weight: 700; font-size: 19px; color: var(--dim);
  transition: color var(--t-fast), background var(--t-med), box-shadow var(--t-med);
}
.combo.hot {
  color: var(--ink); border-color: transparent;
  background: linear-gradient(135deg, var(--violet-hi), color-mix(in srgb, var(--violet) calc(100% - var(--glow) * 60%), var(--cyan)));
  box-shadow: 0 0 calc(6px + var(--glow) * 22px) rgba(167, 139, 250, calc(.25 + var(--glow) * .35));
}
.combo.bump { animation: bump var(--t-med) var(--ease-pop); }
@keyframes bump { from { transform: scale(1.22); } }

.prompt { display: flex; align-items: baseline; justify-content: center; gap: 14px; flex-wrap: wrap; text-align: center; }
.prompt.pop .prompt-note { animation: pop var(--t-slow) var(--ease-pop); }
@keyframes pop { from { transform: translateY(6px) scale(.9); opacity: 0; } }
.prompt-k { color: var(--dim); font-weight: 500; }
.prompt-note { font: 700 clamp(44px, 6.6vw, 72px)/1 var(--font-display); letter-spacing: -.03em; color: var(--violet); display: inline-block; }
.prompt-note small { font: 600 .32em var(--font-ui); color: var(--text); margin-left: 10px; letter-spacing: 0; }
.prompt-where { font-size: var(--fs-lg); font-weight: 500; color: var(--text); width: 100%; }
.board-wrap { position: relative; min-height: 180px; }
.board-wrap canvas { position: absolute; inset: 0; width: 100%; height: 100%; display: block; }
.play-foot { display: flex; align-items: stretch; gap: var(--s-3); }
.feedback {
  flex: 1; display: flex; align-items: center; padding: 12px 16px; border-radius: var(--r-md); min-height: 52px;
  background: var(--surface); border: 1px solid var(--line-soft); border-left: 3px solid var(--line);
  font-size: var(--fs-md); transition: border-color var(--t-fast), background var(--t-med);
}
.feedback[data-kind=ok] { border-left-color: var(--green); background: linear-gradient(90deg, var(--green-a), transparent 50%), var(--surface); }
.feedback[data-kind=miss] { border-left-color: var(--red); background: linear-gradient(90deg, var(--red-a), transparent 50%), var(--surface); }
.feedback[data-kind=info] { border-left-color: var(--cyan); }

/* Resultado */
.result { position: absolute; inset: 0; display: grid; place-items: center; padding: var(--s-4); overflow-y: auto; }
.result-card {
  position: relative; width: min(540px, 100%); text-align: center; padding: 32px 26px 26px; border-radius: var(--r-xl);
  background: linear-gradient(180deg, var(--surface), #171c2a); border: 1px solid var(--line); box-shadow: var(--sh-2);
  animation: rise var(--t-slow) var(--ease) both;
}
@keyframes rise { from { opacity: 0; transform: translateY(12px) scale(.98); } }
.result-card h2 { font: 700 var(--fs-3xl)/1.1 var(--font-display); letter-spacing: -.025em; }
.stars { position: relative; display: flex; justify-content: center; gap: 10px; margin: 14px 0 18px; font-size: 54px; line-height: 1; }
.stars i { display: inline-block; font-style: normal; color: var(--surface-3); }
.stars i.on { color: var(--yellow); animation: star .5s var(--ease-pop) both; }
@keyframes star { from { transform: scale(0) rotate(-30deg); opacity: 0; } }
/* Celebración breve con 3 estrellas: un solo anillo de luz, sin bucles */
.stars:has(i.on:nth-child(3))::before {
  content: ''; position: absolute; left: 50%; top: 50%; width: 120px; height: 120px; margin: -60px 0 0 -60px; border-radius: 50%;
  border: 2px solid var(--yellow); opacity: 0; animation: halo 900ms var(--ease) 1s both; pointer-events: none;
}
@keyframes halo { 0% { opacity: .7; transform: scale(.4); } 100% { opacity: 0; transform: scale(2.6); } }
.rstats { display: grid; grid-template-columns: repeat(2, 1fr); gap: 10px; margin-bottom: 14px; }
.rstats.one { grid-template-columns: 1fr; max-width: 240px; margin: 16px auto; }
.rstats div { padding: 12px; border-radius: var(--r-md); background: var(--bg-2); border: 1px solid var(--line-soft); }
.rstats span { display: block; font-size: var(--fs-xs); color: var(--dim); }
.rstats b { font-size: 22px; font-weight: 650; }
.rextra { color: var(--dim); min-height: 20px; font-size: var(--fs-sm); }
.ractions { display: flex; gap: 10px; justify-content: center; flex-wrap: wrap; margin-top: var(--s-4); }
.done-badge { width: 68px; height: 68px; margin: 0 auto 12px; border-radius: 50%; display: grid; place-items: center; background: var(--green-a); color: var(--green); border: 1px solid rgba(124, 231, 176, .35); animation: star .6s var(--ease-pop) .1s both; }
.done-badge .ic { width: 32px; height: 32px; stroke-width: 2.4; }

/* ================= 9. Acordes y carretera ================= */
.chordplay { grid-template-rows: auto auto minmax(0, 1fr) auto auto auto; }
.chordplay .prompt-note { font-size: clamp(48px, 7.5vw, 76px); }
.chord-stage { position: relative; min-height: 200px; }
.chord-stage canvas { position: absolute; display: block; }
.chord-stage .diagram { inset: 0; width: 100%; height: 100%; }
.chord-stage .road-cv { inset: 0; width: 100%; height: 100%; display: none; border-radius: var(--r-lg); }
.chordplay.road .road-cv { display: block; }
.chordplay.road .diagram {
  inset: 10px auto auto 10px; width: min(44%, 240px); height: min(36%, 160px);
  background: rgba(26, 32, 48, .88); border: 1px solid var(--line); border-radius: var(--r-md);
}
.chordplay.road [data-skip] { visibility: hidden; }
.chordplay.road .legend { display: none; }
.legend { display: flex; flex-wrap: wrap; justify-content: center; gap: 6px 18px; font-size: var(--fs-xs); color: var(--dim); }
.legend span { display: inline-flex; align-items: center; gap: 6px; }
.legend i { font-style: normal; display: inline-grid; place-items: center; width: 16px; height: 16px; border-radius: 50%; font-size: 10px; font-weight: 700; }
.lg-o { border: 1.5px solid var(--green); }
.lg-x { position: relative; }
.lg-x::before, .lg-x::after { content: ''; position: absolute; width: 13px; height: 1.8px; background: var(--red); border-radius: 2px; transform: rotate(45deg); }
.lg-x::after { transform: rotate(-45deg); }
.lg-f { background: var(--violet); color: var(--ink); }
.clean-wrap { display: flex; align-items: center; gap: var(--s-3); font-size: var(--fs-sm); color: var(--dim); }
.clean { flex: 1; height: 8px; border-radius: var(--r-pill); overflow: hidden; background: var(--surface-2); position: relative; }
.clean i { position: absolute; inset: 0; transform-origin: left; transform: scaleX(0); background: var(--red); border-radius: inherit; }
.clean i[data-level=mid] { background: var(--yellow); }
.clean i[data-level=ok] { background: var(--green); }
.clean-wrap em { font-style: normal; min-width: 64px; text-align: right; font-weight: 600; color: var(--dim); }
.countin {
  position: absolute; inset: 0; display: grid; place-items: center; pointer-events: none;
  font: 800 clamp(96px, 18vw, 170px)/1 var(--font-display); color: var(--violet);
  text-shadow: 0 6px 30px rgba(11, 13, 18, .9);
}

/* Pulso de la canción: lo enciende songgame.js con el reloj del audio (no es una animación CSS suelta) */
.beat-pulse { display: flex; gap: 6px; padding: 0 4px; }
.beat-pulse i { width: 12px; height: 12px; border-radius: 50%; background: var(--surface-2); border: 1px solid var(--line); transition: background 60ms, transform 60ms; }
.beat-pulse i:first-child { border-color: rgba(167, 139, 250, .6); }
.beat-pulse i.lit { background: var(--cyan); border-color: var(--cyan); transform: scale(1.2); }
.beat-pulse i.lit:first-child { background: var(--violet); border-color: var(--violet); }

/* ================= 10. Lecciones ================= */
.lessons-list { max-width: 860px; }
.route-meter { display: flex; align-items: center; gap: var(--s-3); margin-bottom: var(--s-5); color: var(--dim); font-size: var(--fs-sm); }
.route-meter .bar { flex: 1; max-width: 320px; }
.route-meter b { color: var(--text); }
.route { list-style: none; margin: 0; padding: 0; display: grid; gap: var(--s-3); }
.route li { position: relative; display: grid; grid-template-columns: 44px minmax(0, 1fr); gap: var(--s-4); }
.route li:not(:last-child)::before { content: ''; position: absolute; left: 21px; top: 46px; bottom: -14px; width: 2px; background: var(--line-soft); }
.route li.done:not(:last-child)::before { background: rgba(124, 231, 176, .35); }
.r-node { width: 44px; height: 44px; border-radius: 50%; display: grid; place-items: center; font-weight: 650; background: var(--surface); border: 1.5px solid var(--line); color: var(--dim); position: relative; z-index: 1; }
.done .r-node { background: var(--green-a); border-color: rgba(124, 231, 176, .5); color: var(--green); }
.next .r-node { background: var(--violet); border-color: var(--violet); color: var(--ink); box-shadow: 0 0 0 6px rgba(167, 139, 250, .14); }
.r-node .ic { width: 20px; height: 20px; stroke-width: 2.4; }
.r-card {
  display: grid; gap: 6px; text-align: left; padding: 16px 18px; border-radius: var(--r-lg);
  background: var(--surface); border: 1px solid var(--line-soft);
  transition: transform var(--t-med) var(--ease), border-color var(--t-fast), background var(--t-fast);
}
.r-card:hover { transform: translateX(3px); border-color: var(--line); background: #1d2435; }
.next .r-card { border-color: rgba(167, 139, 250, .45); box-shadow: var(--glow-violet); }
.r-top { display: flex; align-items: center; justify-content: space-between; gap: var(--s-2); }
.r-card b { font-size: var(--fs-lg); font-weight: 600; }
.r-card p { color: var(--dim); font-size: var(--fs-sm); }
.r-meta { display: flex; flex-wrap: wrap; gap: 6px 14px; color: var(--faint); font-size: var(--fs-xs); font-weight: 500; }
.r-meta span { display: inline-flex; align-items: center; gap: 5px; }
.r-meta .ic { width: 14px; height: 14px; }

.lesson { position: absolute; inset: 0; display: grid; grid-template-columns: minmax(0, 1fr); grid-template-rows: auto auto minmax(0, 1fr) auto; padding: 12px var(--s-5) calc(12px + var(--safe-b)); gap: 12px; max-width: 960px; margin: 0 auto; }
.lesson-body { display: grid; gap: 8px; justify-items: start; animation: rise var(--t-med) var(--ease) both; }
.lesson-body h2 { font: 650 clamp(24px, 3.4vw, 34px)/1.15 var(--font-display); letter-spacing: -.02em; }
.lesson-text { font-size: clamp(16px, 2vw, 18.5px); line-height: 1.6; color: var(--text); max-width: 64ch; }
.lesson-rule { display: inline-flex; gap: 8px; align-items: center; color: var(--dim); font-size: var(--fs-sm); }
.lesson-rule::before { content: ''; width: 6px; height: 6px; border-radius: 50%; background: var(--cyan); flex: none; }
.lesson-stage { min-height: 0; display: grid; grid-template-rows: auto minmax(0, 1fr); gap: 6px; }
.lesson-draw { position: relative; min-height: 120px; }
.lesson-draw canvas { position: absolute; inset: 0; width: 100%; height: 100%; display: block; }
.lesson .feedback:empty { display: none; }
.lesson .play-foot { align-items: center; grid-row: 4; }
/* Paso de lectura: el botón va justo debajo del texto, no al fondo de la pantalla */
.lesson:has(> [data-stage][hidden]) .play-foot { grid-row: 3; align-self: start; justify-content: flex-start; }
.lesson .play-foot { flex-wrap: wrap; justify-content: flex-end; }
.lesson .play-foot .feedback { flex: 1 1 240px; }

/* ================= 11. Canciones y metrónomo ================= */
.song-speed { display: flex; align-items: center; gap: var(--s-3); flex-wrap: wrap; margin-bottom: var(--s-4); color: var(--dim); font-weight: 500; }
.song-speed-note { font-size: var(--fs-sm); }
.lc-level { font-size: var(--fs-xs); font-weight: 600; }
.song-prog { height: 4px; margin-top: 8px; border-radius: var(--r-pill); background: var(--surface-2); overflow: hidden; }
.song-prog i { display: block; height: 100%; background: var(--violet); transform-origin: left; transform: scaleX(0); }
.metro-title { margin: var(--s-6) 0 var(--s-3); }
.metro { max-width: 640px; padding: 22px 20px; border-radius: var(--r-xl); background: var(--surface); border: 1px solid var(--line-soft); display: grid; gap: 18px; box-shadow: var(--sh-2); }
.metro-dots { display: flex; justify-content: center; gap: 14px; }
.metro-dots i { width: 20px; height: 20px; border-radius: 50%; background: var(--surface-2); border: 2px solid var(--line); transition: background 60ms, transform 60ms, box-shadow 60ms; }
.metro-dots i.accent { border-color: rgba(167, 139, 250, .6); }
.metro-dots i.lit { background: var(--cyan); border-color: var(--cyan); transform: scale(1.18); box-shadow: 0 0 16px rgba(103, 232, 249, .45); }
.metro-dots i.accent.lit { background: var(--violet); border-color: var(--violet); box-shadow: 0 0 16px rgba(167, 139, 250, .5); }
.metro-bpm { display: flex; align-items: center; justify-content: center; gap: 6px; }
.metro-bpm .btn { min-width: 48px; padding: 0 10px; }
.metro-num { min-width: 128px; text-align: center; }
.metro-num b { display: block; font: 700 58px/1 var(--font-display); letter-spacing: -.03em; color: var(--text); }
.metro-num span { font-size: var(--fs-xs); color: var(--cyan); font-weight: 600; letter-spacing: .08em; }
.metro-range { width: 100%; }
.metro-row { display: flex; align-items: center; gap: var(--s-4); flex-wrap: wrap; }
.seg { display: inline-flex; padding: 3px; border-radius: var(--r-md); background: var(--bg-2); border: 1px solid var(--line-soft); }
.seg button { min-height: 36px; padding: 0 14px; border-radius: 9px; color: var(--dim); font-weight: 600; font-size: var(--fs-sm); transition: background var(--t-fast), color var(--t-fast); }
.seg button:hover:not(.on) { color: var(--text); }
.seg button.on { background: var(--violet); color: var(--ink); }
.metro-vol { flex: 1; min-width: 180px; display: flex; align-items: center; gap: 10px; color: var(--dim); font-size: var(--fs-sm); }
.metro-vol input { flex: 1; }
.metro-actions { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.metro-actions .btn { min-height: 52px; font-size: var(--fs-lg); }
.btn.tap { touch-action: none; }
.btn.tap.hit { animation: tap .18s ease-out; }
@keyframes tap { from { background: var(--cyan-a); border-color: var(--cyan); } }
[data-metro-play].on { background: var(--surface-2); color: var(--text); border-color: var(--violet); box-shadow: none; }

/* ================= 12. Calibración ================= */
.calib { max-width: 820px; margin: 0 auto; padding: 28px var(--s-6) var(--s-7); }
.cstep { padding: 20px; border-radius: var(--r-lg); background: var(--surface); border: 1px solid var(--line-soft); margin-bottom: var(--s-3); }
.cstep h3 { margin: 0 0 10px; display: flex; align-items: center; gap: 10px; font-size: var(--fs-lg); }
.cstep h3 b { width: 28px; height: 28px; border-radius: 50%; display: grid; place-items: center; font-size: var(--fs-sm); background: var(--violet-a); color: var(--violet-hi); }
.cstep h3 .ic { color: var(--cyan); }
.cstep p { color: var(--dim); margin: 0 0 12px; }
.cstep.live { border-color: rgba(103, 232, 249, .2); }
.guitar-opts { display: grid; grid-template-columns: repeat(auto-fit, minmax(170px, 1fr)); gap: 10px; }
.guitar-opt { text-align: left; padding: 14px; border-radius: var(--r-md); background: var(--bg-2); border: 1px solid var(--line-soft); display: grid; gap: 2px; transition: border-color var(--t-fast), background var(--t-fast); }
.guitar-opt:hover { border-color: var(--line); }
.guitar-opt span { color: var(--dim); font-size: var(--fs-sm); }
.guitar-opt.on { border-color: var(--violet); background: var(--violet-a); box-shadow: inset 0 0 0 1px var(--violet); }
.prog { height: 4px; border-radius: 2px; background: var(--surface-2); overflow: hidden; margin-bottom: 10px; }
.prog i { display: block; height: 100%; width: 0; background: var(--cyan); }
.status { min-height: 22px; color: var(--text) !important; }
.live-meter { position: relative; height: 12px; border-radius: var(--r-pill); background: var(--surface-2); overflow: hidden; }
.live-meter i { position: absolute; inset: 0 auto 0 0; width: 0; background: var(--faint); border-radius: inherit; }
.live-meter i.over { background: linear-gradient(90deg, rgba(103, 232, 249, .6), var(--cyan)); }
.live-meter b { position: absolute; top: 0; bottom: 0; width: 2px; background: var(--text); left: 0; }
.live-note { font-weight: 600; color: var(--text) !important; margin: 10px 0 14px !important; }
.sens { display: flex; align-items: center; gap: var(--s-3); color: var(--dim); margin-bottom: 14px; }
.sens input { flex: 1; }
.cr-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 6px 16px; font-size: var(--fs-sm); color: var(--dim); }
.cr-grid b { color: var(--text); }
.cr-verdict { margin: 12px 0 !important; padding: 12px 14px; border-radius: 10px; background: var(--bg-2); color: var(--text) !important; border-left: 3px solid var(--cyan); }
.cr-verdict[data-kind=ok] { border-left-color: var(--green); }
.cr-verdict[data-kind=warn] { border-left-color: var(--yellow); }
.lat-dots { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 10px; }
.lat-dots i { width: 16px; height: 16px; border-radius: 50%; background: var(--surface-2); border: 2px solid var(--line); transition: background 60ms, transform 60ms; }
.lat-dots i.pre { width: 10px; height: 10px; margin: 3px; }
.lat-dots i.lit { background: var(--cyan); border-color: var(--cyan); transform: scale(1.2); }
.lat-dots i.ok { background: var(--green); border-color: var(--green); }
.lat-dots i.miss { background: var(--red); border-color: var(--red); border-radius: 3px; }
.lat-value { color: var(--dim); }
.lat-value b { color: var(--text); }
.lat-actions { display: flex; gap: 10px; flex-wrap: wrap; }
.cstep .hand-title { color: var(--dim); margin: 18px 0 10px; }

/* ================= 13. Progreso ================= */
.profile { max-width: 920px; margin: 0 auto; padding: 28px var(--s-6) var(--s-7); display: grid; gap: var(--s-3); }
.pcard { background: var(--surface); border: 1px solid var(--line-soft); border-radius: var(--r-lg); padding: 18px 20px; }
.pcard h3 { margin: 0 0 12px; font-size: var(--fs-md); }
.pcard h3 small { color: var(--dim); font-weight: 500; margin-left: 6px; }
.pcard p { color: var(--dim); font-size: var(--fs-sm); }
.plevel { background: radial-gradient(100% 140% at 0% 0%, rgba(167, 139, 250, .16), transparent 55%), var(--surface); border-color: rgba(167, 139, 250, .25); }
.plevel-top { display: flex; align-items: baseline; justify-content: space-between; gap: var(--s-3); flex-wrap: wrap; margin-bottom: 12px; }
.plevel h2 { font: 700 var(--fs-3xl)/1 var(--font-display); letter-spacing: -.025em; }
.pbar { height: 10px; border-radius: var(--r-pill); background: var(--surface-2); overflow: hidden; }
.pbar i { display: block; height: 100%; width: 0; border-radius: inherit; background: linear-gradient(90deg, var(--violet-deep), var(--violet)); transition: width var(--t-slow) var(--ease); }
.pgrid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--s-3); }
.pgrid .pcard span { display: inline-flex; align-items: center; gap: 6px; color: var(--dim); font-size: var(--fs-sm); }
.pgrid .pcard span .ic { width: 16px; height: 16px; color: var(--yellow); }
.pgrid .pcard b { display: block; font: 700 34px/1.15 var(--font-display); color: var(--text); margin-top: 4px; }
.areas { display: grid; gap: 14px; }
.area { display: grid; grid-template-columns: 160px minmax(0, 1fr) auto; gap: var(--s-3); align-items: center; }
.area b { font-weight: 600; display: inline-flex; align-items: center; gap: 8px; }
.area b .ic { width: 18px; height: 18px; color: var(--cyan); }
.area em { font-style: normal; color: var(--dim); font-size: var(--fs-sm); font-variant-numeric: tabular-nums; white-space: nowrap; }
.achs { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(auto-fill, minmax(230px, 1fr)); gap: 10px; }
.ach { display: grid; grid-template-columns: auto minmax(0, 1fr); gap: 12px; align-items: center; border: 1px solid var(--line-soft); border-radius: var(--r-md); padding: 12px; background: var(--bg-2); }
.ach .ach-ic { width: 38px; height: 38px; }
.ach .ach-ic .ic { width: 18px; height: 18px; }
.ach .ach-ic.on .ic { fill: currentColor; }
.ach b { font-size: var(--fs-md); display: block; }
.ach-txt span { color: var(--dim); font-size: var(--fs-sm); display: block; }
.ach em { color: var(--green); font-style: normal; font-size: var(--fs-xs); }
.ach:not(.on) b { color: var(--dim); }
.ach.on { border-color: rgba(245, 199, 110, .3); }
.account .btn { margin-top: 12px; }
.acc-status { font-size: var(--fs-sm); margin-top: 8px; }

/* ================= 14. Avisos ================= */
.toast {
  position: absolute; left: 50%; bottom: calc(18px + var(--safe-b)); transform: translateX(-50%); z-index: 20;
  display: flex; align-items: center; gap: 10px;
  background: var(--surface-2); border: 1px solid rgba(245, 199, 110, .4); border-radius: var(--r-md); padding: 12px 16px;
  font-size: var(--fs-md); box-shadow: 0 12px 30px rgba(0, 0, 0, .55); max-width: calc(100% - 32px); text-align: left;
  animation: toastIn var(--t-med) var(--ease) both;
}
.toast .ic { color: var(--yellow); fill: currentColor; stroke: none; }
.toast b { color: var(--yellow); }
@keyframes toastIn { from { opacity: 0; transform: translate(-50%, 10px); } }
.gate { position: absolute; inset: 0; z-index: 5; display: grid; place-items: center; background: rgba(16, 18, 22, .86); padding: var(--s-4); animation: fadeIn var(--t-med) var(--ease) both; }
@keyframes fadeIn { from { opacity: 0; } }
.gate-card { display: grid; gap: 10px; justify-items: center; text-align: center; max-width: 400px; padding: 28px 26px 22px; border-radius: var(--r-xl); background: var(--surface); border: 1px solid var(--line); box-shadow: var(--sh-2); animation: rise var(--t-med) var(--ease) both; }
.gate-card h3 { font: 650 var(--fs-xl)/1.2 var(--font-display); }
.gate-card p { color: var(--dim); margin-bottom: 6px; }
.gate-card .btn.primary { width: 100%; }
.hand-ask { z-index: 6; }
.hand-btns { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; width: 100%; }
.hand-ask .hand-note { margin: 4px 0 0; font-size: var(--fs-sm); }

/* ================= 14b. Piel de concierto para partida, resultado y lecciones ================= */
.hud-score b { font: 900 30px/1 var(--font-display); }
.combo { font: 900 24px/1 var(--font-display); letter-spacing: .02em; }
.prompt-note { font: 900 clamp(60px, 8.5vw, 100px)/.9 var(--font-display); letter-spacing: 0; }
.chordplay .prompt-note { font-size: clamp(64px, 9vw, 104px); }
.prompt-note small { font: 700 .3em var(--font-display); text-transform: uppercase; letter-spacing: .04em; color: var(--text); }
.hud-level span { font: 800 20px/1.1 var(--font-display); text-transform: uppercase; letter-spacing: .03em; }
.feedback { background: rgba(20, 25, 35, .85); }

/* Resultado = el bis: un foco cae sobre la tarjeta */
.result::before { content: ''; position: absolute; left: 50%; top: 0; width: min(900px, 140%); height: 100%; transform: translateX(-50%); background: radial-gradient(40% 70% at 50% 0%, rgba(243, 245, 250, .12), transparent 70%); pointer-events: none; }
.result-card { background: linear-gradient(180deg, rgba(27, 23, 48, .95), rgba(17, 19, 27, .95)); }
.result-card h2 { font-size: clamp(48px, 7vw, 72px); line-height: .9; }
.rstats b { font: 900 32px/1.05 var(--font-display); }

/* Lecciones: la ruta como orden de ensayo */
.r-node { font: 900 22px/1 var(--font-display); }
.r-card { background: rgba(26, 32, 48, .7); }
.r-card b { font: 800 24px/1 var(--font-display); text-transform: uppercase; letter-spacing: .02em; }
.lesson-body h2 { font-size: clamp(34px, 4.6vw, 52px); line-height: .95; }
.route-meter b { font: 900 22px var(--font-display); }

/* Paneles sobre el escenario: semitransparentes para que se vea la luz detrás */
.cstep, .pcard, .metro, .gate-card { background: rgba(26, 32, 48, .82); }
.plevel h2 { font-size: 56px; line-height: .9; }
.pgrid .pcard b { font: 900 46px/1 var(--font-display); }
.metro-num b { font: 900 72px/.9 var(--font-display); }
.cstep h3 b { font: 900 18px/1 var(--font-display); }
.cstep h3, .pcard h3, .gate-card h3 { font-family: var(--font-display); font-weight: 800; text-transform: uppercase; letter-spacing: .02em; font-size: 22px; }
.ach b, .area b { font-family: var(--font-display); font-weight: 800; text-transform: uppercase; letter-spacing: .02em; font-size: 19px; }

/* ================= 14c. Vidrio (glassmorphism) =================
   Paneles de vidrio esmerilado sobre el escenario: la luz de los cañones se ve difusa detrás.
   Brillo especular limpio en el borde superior, sin refracción. El desenfoque (caro) solo va en
   paneles grandes; los chicos usan el mismo tinte sin desenfoque. */
:root {
  --glass: linear-gradient(155deg, rgba(255, 255, 255, .09), rgba(255, 255, 255, .025) 55%, rgba(255, 255, 255, .04)), rgba(22, 26, 40, .46);
  --glass-strong: linear-gradient(155deg, rgba(255, 255, 255, .1), rgba(255, 255, 255, .03) 55%), rgba(18, 21, 32, .66);
  --glass-line: rgba(255, 255, 255, .12);
  --glass-hi: inset 0 1px 0 rgba(255, 255, 255, .16), inset 0 -1px 0 rgba(255, 255, 255, .03);
  --glass-sh: 0 24px 50px -26px rgba(0, 0, 0, .85);
  --glass-blur: blur(20px) saturate(160%);
}
.glass-panel, .card, .monitor, .metro, .cstep, .pcard, .result-card, .gate-card, .r-card, .soundcheck, .nag, .toast {
  background: var(--glass);
  border: 1px solid var(--glass-line);
  box-shadow: var(--glass-hi), var(--glass-sh);
  -webkit-backdrop-filter: var(--glass-blur);
          backdrop-filter: var(--glass-blur);
}
/* Chicos: mismo vidrio, sin desenfoque */
.btn:not(.primary):not(.ghost), .mic-pill, .xp-chip, .feedback, .rstats div, .ach, .guitar-opt, .seg, .tile-ic, .r-node, .stop-n, .ach-ic {
  background-image: linear-gradient(160deg, rgba(255, 255, 255, .08), rgba(255, 255, 255, .02));
  background-color: rgba(24, 29, 44, .55);
  border-color: var(--glass-line);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, .12);
}
.btn:not(.primary):not(.ghost):hover:not(:disabled) { background-color: rgba(38, 46, 68, .7); border-color: rgba(255, 255, 255, .2); }
.xp-chip:hover, .xp-chip.on { border-color: var(--violet); }
.guitar-opt.on { background-color: var(--violet-a); border-color: var(--violet); }
.ach.on { border-color: rgba(245, 199, 110, .35); }
.here .stop-n { background: var(--violet); border-color: var(--violet); }
.done .stop-n { border-color: var(--green); }
.next .r-node { background: var(--violet); border-color: var(--violet); }
.done .r-node { background-color: var(--green-a); border-color: rgba(124, 231, 176, .5); }
.ach-ic.on { background-color: var(--yellow-a); border-color: rgba(245, 199, 110, .35); }
/* Botón principal: violeta sólido con brillo superior, como una pieza de vidrio teñido */
.btn.primary { background-image: linear-gradient(180deg, rgba(255, 255, 255, .28), rgba(255, 255, 255, 0) 55%); box-shadow: inset 0 1px 0 rgba(255, 255, 255, .45), 0 10px 26px -12px rgba(167, 139, 250, .9); }
/* Estados de la retroalimentación conservan su tinte encima del vidrio */
.feedback[data-kind=ok] { background-image: linear-gradient(90deg, var(--green-a), transparent 55%); }
.feedback[data-kind=miss] { background-image: linear-gradient(90deg, var(--red-a), transparent 55%); }
.feedback { border-left-width: 3px; }
.feedback[data-kind=ok] { border-left-color: var(--green); }
.feedback[data-kind=miss] { border-left-color: var(--red); }
.feedback[data-kind=info] { border-left-color: var(--cyan); }
.soundcheck { background: linear-gradient(90deg, rgba(103, 232, 249, .12), transparent 60%), var(--glass); border-color: rgba(103, 232, 249, .26); }
.plevel { background: radial-gradient(100% 140% at 0% 0%, rgba(167, 139, 250, .2), transparent 55%), var(--glass); border-color: rgba(167, 139, 250, .3); }
.next .r-card { border-color: rgba(167, 139, 250, .5); box-shadow: var(--glass-hi), var(--glow-violet); }
.r-card:hover { background: linear-gradient(155deg, rgba(255, 255, 255, .12), rgba(255, 255, 255, .04)), rgba(26, 31, 48, .55); }
.result-card { background: radial-gradient(90% 60% at 50% 0%, rgba(167, 139, 250, .22), transparent 70%), var(--glass-strong); }
.gate { background: rgba(10, 12, 17, .55); -webkit-backdrop-filter: blur(6px); backdrop-filter: blur(6px); }
.gate-card { background: var(--glass-strong); }
.toast { background: var(--glass-strong); border-color: rgba(245, 199, 110, .4); }
.monitor .mon + .mon { border-left-color: rgba(255, 255, 255, .08); }

/* Afiche: vidrio teñido de violeta, la luz del escenario se cuela por detrás */
.poster {
  background:
    radial-gradient(70% 120% at 18% -20%, rgba(167, 139, 250, .42), transparent 60%),
    radial-gradient(50% 80% at 100% 120%, rgba(103, 232, 249, .14), transparent 60%),
    linear-gradient(160deg, rgba(40, 32, 76, .55), rgba(14, 16, 24, .5) 60%);
  border-color: rgba(255, 255, 255, .14);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, .18), 0 30px 60px -30px rgba(0, 0, 0, .9);
  -webkit-backdrop-filter: var(--glass-blur);
          backdrop-filter: var(--glass-blur);
}
.poster-stub { background: rgba(255, 255, 255, .04); }

/* Marquesina y barra inferior: vidrio fijo arriba y abajo */
.marquee {
  background: linear-gradient(180deg, rgba(14, 16, 24, .62), rgba(14, 16, 24, .38));
  border-bottom-color: rgba(255, 255, 255, .1);
  box-shadow: inset 0 -1px 0 rgba(255, 255, 255, .04), 0 10px 30px -18px rgba(0, 0, 0, .8);
  -webkit-backdrop-filter: var(--glass-blur);
          backdrop-filter: var(--glass-blur);
}
.brand-mark { box-shadow: inset 0 1px 0 rgba(255, 255, 255, .5), 0 6px 18px -8px rgba(167, 139, 250, .8); }

/* Navegador sin desenfoque: vidrio más opaco para que el texto siga legible */
@supports not ((backdrop-filter: blur(1px)) or (-webkit-backdrop-filter: blur(1px))) {
  :root { --glass: rgba(26, 32, 48, .9); --glass-strong: rgba(24, 28, 42, .96); }
  .marquee { background: rgba(12, 14, 20, .94); }
}

/* ================= 15. Adaptación ================= */
/* Laptop angosta: la marquesina pierde los textos largos */
@media (max-width: 1180px) {
  .mic-label { display: none; }
  .nav button { padding: 0 10px; font-size: 17px; }
  .nav button.on::after { left: 10px; right: 10px; }
}
@media (max-width: 1100px) {
  .poster { grid-template-columns: minmax(0, 1fr) 200px; }
  .levels, .calib, .profile, .home { padding-inline: var(--s-5); }
}

/* Tablet vertical y celular: barra inferior, encabezado con el nombre de la pantalla */
@media (max-width: 900px) and (min-height: 521px) {
  .nav { display: none; }
  .crumb { display: block; }
  .marquee { gap: 12px; }
  .brand-name { display: none; }
  .tabbar {
    display: grid; grid-template-columns: repeat(6, minmax(0, 1fr));
    padding: 6px 4px calc(6px + var(--safe-b));
    background: linear-gradient(180deg, rgba(14, 17, 24, .5), rgba(11, 13, 18, .72)); border-top: 1px solid rgba(255, 255, 255, .1);
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, .06);
    -webkit-backdrop-filter: var(--glass-blur); backdrop-filter: var(--glass-blur);
  }
  .tabbar button { display: grid; justify-items: center; gap: 3px; min-height: 50px; padding: 4px 0; color: var(--faint); font: 700 13px/1 var(--font-display); text-transform: uppercase; letter-spacing: .05em; transition: color var(--t-fast); }
  .tabbar button .ic { width: 46px; height: 28px; padding: 4px 13px; border-radius: var(--r-pill); transition: background var(--t-fast), color var(--t-fast); }
  .tabbar button.on { color: var(--text); }
  .tabbar button.on .ic { background: var(--violet-a); color: var(--violet); box-shadow: 0 0 18px -4px rgba(167, 139, 250, .6); }
  /* Durante el ejercicio, toda la pantalla para el ejercicio */
  .app:has(.screen:not([hidden]) :is(.play, .lesson):not([hidden])) .tabbar { display: none; }
  .monitor { grid-template-columns: 1fr 1fr; }
  .mon-week { grid-column: 1 / -1; border-left: 0 !important; border-top: 1px solid rgba(255, 255, 255, .06); }
  .howto { grid-template-columns: 1fr; gap: 10px; }
}
@media (max-width: 640px) and (min-height: 521px) {
  :root { --top-h: 56px; }
  .marquee { padding: 0 12px; gap: 10px; }
  .brand-mark { width: 32px; height: 32px; }
  .crumb h1 { font-size: 22px; }
  .xp-chip .xp-bar, .mic-pill:not([data-on]) .mic-meter { display: none; }
  .hud-right { gap: 6px; }
  .mic-pill { padding: 0 10px; }
  .xp-chip { padding: 0 10px; gap: 8px; }
  .icon-btn { width: 36px; height: 36px; }

  .home { padding: 22px var(--s-4) var(--s-6); gap: 16px; }
  .poster { grid-template-columns: 1fr; }
  .poster-main { padding: 24px 20px 20px; }
  .nc-actions .btn { flex: 1 1 auto; }
  .poster-stub {
    grid-template-columns: repeat(auto-fit, minmax(90px, 1fr)); grid-auto-flow: column; grid-template-rows: auto auto;
    gap: 2px 12px; padding: 16px 20px 18px;
    border-left: 0; border-top: 2px dashed rgba(255, 255, 255, .16);
    -webkit-mask: none; mask: none;
  }
  .poster-stub dt { margin-top: 0; }
  .poster-stub dd { font-size: 20px; }
  .mon { padding: 14px 16px; }
  .mon-big { font-size: 46px; }
  .mon-k b { display: none; }
  .soundcheck { grid-template-columns: auto minmax(0, 1fr); padding: 16px; }
  .soundcheck > .btn { grid-column: 1 / -1; }
  .tour { grid-template-columns: 1fr; gap: 4px; }
  .tour::before { left: 35px; right: auto; top: 36px; bottom: 36px; width: 2px; height: auto; background: repeating-linear-gradient(180deg, rgba(255, 255, 255, .22) 0 8px, transparent 8px 14px); }
  .stop { grid-template-columns: 64px auto minmax(0, 1fr) auto; justify-items: start; text-align: left; column-gap: 10px; row-gap: 4px; padding: 6px 4px; align-items: center; }
  .stop-n { grid-row: 1 / 4; grid-column: 1; }
  .stop-ic { grid-row: 1; grid-column: 2; margin: 0; }
  .stop b { grid-row: 1; grid-column: 3; }
  .stop .chip { grid-row: 1; grid-column: 4; }
  .stop-t { grid-row: 2; grid-column: 2 / 5; }
  .stop .bar { grid-row: 3; grid-column: 2 / 5; width: 100%; }
  .home-row { grid-template-columns: 1fr; gap: var(--s-5); }

  .levels, .calib, .profile { padding: 24px var(--s-4) var(--s-6); }
  .level-card { grid-template-columns: 46px minmax(0, 1fr) auto; gap: 12px; padding: 14px 6px; }
  .lc-num { font-size: 38px; }
  .lc-name { font-size: 21px; }
  .lc-best { display: none; }
  .pgrid { gap: 8px; }
  .pgrid .pcard { padding: 12px; }
  .pgrid .pcard b { font-size: 36px; }
  .area { grid-template-columns: 1fr auto; }
  .area .bar { grid-column: 1 / -1; grid-row: 2; }
  .week.wide { gap: 3px; }
  .metro-bpm .btn { min-width: 0; padding: 0 9px; }
  .metro-num { min-width: 92px; }
  .metro-num b { font-size: 58px; }
  .tuner-bar { padding-inline: var(--s-4); }
  .beam { width: 70vw; margin-left: -35vw; }
}

/* Celular vertical en partida: HUD compacto y sugerencia de girar */
.rotate-tip { display: none; }
@media (max-width: 640px) and (orientation: portrait) {
  .play, .lesson { padding: 8px 12px calc(8px + var(--safe-b)); }
  .hud { gap: 10px; }
  .hud .back { font-size: 0; gap: 0; padding: 0 8px; min-width: 40px; }
  .hud .back .ic { width: 20px; height: 20px; }
  .hud-score b { font-size: 26px; }
  .hud-score:has([data-acc]) { display: none; }
  .combo { min-width: 0; height: 38px; font-size: 20px; padding: 0 10px; }
  .play-foot { flex-direction: column; }
  .rotate-tip { display: block; text-align: center; color: var(--dim); font-size: var(--fs-xs); margin: 0; }
  .beat-pulse i { width: 10px; height: 10px; }
}

/* Celular en horizontal: marquesina compacta solo con íconos, sin barra inferior */
@media (max-height: 520px) {
  :root { --top-h: 46px; }
  .marquee { padding: 0 var(--s-4); gap: 12px; }
  .brand-name, .mic-label { display: none; }
  .brand-mark { width: 30px; height: 30px; }
  .nav button { padding: 0 12px; font-size: 0; }
  .nav button .ic { display: block; width: 22px; height: 22px; }
  .nav button.on::after { left: 8px; right: 8px; }
  .nav button.on .ic { color: var(--violet); }
  .play, .lesson { gap: 4px; padding-top: 6px; }
  .hud .btn { min-height: 32px; }
  .rounds i { width: 9px; height: 9px; }
  .rounds { margin-top: 4px; }
  .prompt { gap: 10px; align-items: center; }
  .prompt-note, .chordplay .prompt-note { font-size: 42px; }
  .prompt-where { font-size: var(--fs-sm); width: auto; }
  .chordplay .prompt-where { font-size: 12.5px; }
  .chordplay.road .prompt-where { display: none; }
  .board-wrap { min-height: 120px; }
  .chord-stage { min-height: 110px; }
  .chordplay.road .diagram { width: min(30%, 230px); height: calc(100% - 20px); }
  .legend { display: none; }
  .hud-score b { font-size: 24px; }
  .hud-level span { font-size: 17px; }
  .combo { height: 34px; font-size: 18px; }
  .feedback { padding: 8px 12px; min-height: 0; font-size: var(--fs-sm); }
  .clean-wrap { font-size: var(--fs-xs); }
  .clean { height: 6px; }
  .lesson-body h2 { font-size: 26px; }
  .lesson-text { font-size: 14px; }
  .lesson-rule { display: none; }
  .lesson-stage { grid-template-columns: auto minmax(0, 1fr); grid-template-rows: minmax(0, 1fr); }
  .lesson .prompt-note { font-size: 42px; }
  .home { padding-top: 18px; }
}

/* Movimiento reducido: luces quietas, sin destellos ni celebraciones; el estado sigue en texto */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .01ms !important; animation-delay: 0ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
  .beam { animation: none !important; }
  .stars:has(i.on:nth-child(3))::before { display: none; }
}

/* ================= 16. Entrada: el telón =================
   Cronología: focos entran (0.2 s) → cuerdas se tensan (0.5 s) → púa (1.1 s) → título letra por letra
   (1.3 s) → lema → botón de vidrio (2.4 s). Tocar la pantalla la adelanta (.skip: retraso negativo).
   Al entrar (.go): destello, las cuerdas vibran, el telón se abre y la app sale del desenfoque. */
.intro {
  position: fixed; inset: 0; z-index: 100; overflow: hidden; isolation: isolate;
  display: grid; place-items: center; padding: calc(24px + var(--safe-t)) 16px calc(24px + var(--safe-b));
  background:
    radial-gradient(80% 60% at 50% 115%, rgba(167, 139, 250, .22), transparent 65%),
    linear-gradient(180deg, #06070B 0%, #0B0D13 55%, #120F22 100%);
  animation: introBg 1.6s var(--ease) both;
}
@keyframes introBg { from { opacity: 0; } }
body.intro-on .marquee, body.intro-on .stage, body.intro-on .tabbar { opacity: 0; transform: scale(.965); }
body.intro-out .marquee, body.intro-out .stage, body.intro-out .tabbar { transition: opacity .9s var(--ease) .25s, transform 1.1s var(--ease) .2s; }

/* Focos que barren desde fuera y se clavan en el centro */
.intro-sky { position: absolute; inset: 0; z-index: -1; pointer-events: none; }
.ib {
  --c: 167, 139, 250; --from: 40deg; --to: 12deg;
  position: absolute; top: -6vh; width: 60vw; height: 130vh; margin-left: -30vw; transform-origin: 50% 0;
  background: linear-gradient(180deg, rgba(var(--c), .42), rgba(var(--c), .1) 50%, rgba(var(--c), 0) 82%);
  clip-path: polygon(48% 0, 52% 0, 100% 100%, 0 100%);
  opacity: 0;
  animation: ibIn 1.3s var(--ease) both, ibSway 7s ease-in-out 1.5s infinite alternate;
}
.ib1 { left: 8%; --from: 70deg; --to: 24deg; animation-delay: .2s, 1.5s; }
.ib2 { left: 34%; --c: 103, 232, 249; --from: 55deg; --to: 9deg; animation-delay: .32s, 2.2s; }
.ib3 { left: 66%; --c: 103, 232, 249; --from: -55deg; --to: -9deg; animation-delay: .38s, 1.8s; }
.ib4 { left: 92%; --from: -70deg; --to: -24deg; animation-delay: .26s, 2.6s; }
@keyframes ibIn { from { opacity: 0; transform: rotate(var(--from)); } to { opacity: 1; transform: rotate(var(--to)); } }
@keyframes ibSway { from { opacity: 1; transform: rotate(var(--to)); } to { opacity: 1; transform: rotate(calc(var(--to) * .6)); } }
.intro-haze {
  position: absolute; left: 50%; top: 50%; width: min(900px, 140vw); aspect-ratio: 1; translate: -50% -50%;
  background: radial-gradient(closest-side, rgba(167, 139, 250, .3), rgba(103, 232, 249, .08) 55%, transparent);
  opacity: 0; animation: haze 1.4s var(--ease) 1s both;
}
@keyframes haze { from { opacity: 0; transform: scale(.6); } to { opacity: 1; transform: scale(1); } }
/* Chispas que suben del escenario */
.intro-sparks i {
  position: absolute; bottom: -10px; width: 3px; height: 3px; border-radius: 50%;
  background: #F5C76E; box-shadow: 0 0 8px 2px rgba(245, 199, 110, .7); opacity: 0;
  animation: spark 5s linear infinite;
}
.intro-sparks i:nth-child(1) { left: 8%; animation-delay: 1.2s; }
.intro-sparks i:nth-child(2) { left: 17%; animation-delay: 2.9s; animation-duration: 6s; }
.intro-sparks i:nth-child(3) { left: 26%; animation-delay: 1.8s; background: #67E8F9; box-shadow: 0 0 8px 2px rgba(103, 232, 249, .7); }
.intro-sparks i:nth-child(4) { left: 35%; animation-delay: 3.6s; animation-duration: 4.4s; }
.intro-sparks i:nth-child(5) { left: 44%; animation-delay: 1.5s; animation-duration: 6.5s; background: #BBA4FC; box-shadow: 0 0 8px 2px rgba(167, 139, 250, .8); }
.intro-sparks i:nth-child(6) { left: 53%; animation-delay: 2.4s; }
.intro-sparks i:nth-child(7) { left: 61%; animation-delay: 4.1s; animation-duration: 5.6s; background: #67E8F9; box-shadow: 0 0 8px 2px rgba(103, 232, 249, .7); }
.intro-sparks i:nth-child(8) { left: 69%; animation-delay: 1.3s; animation-duration: 4.8s; }
.intro-sparks i:nth-child(9) { left: 77%; animation-delay: 3.1s; background: #BBA4FC; box-shadow: 0 0 8px 2px rgba(167, 139, 250, .8); }
.intro-sparks i:nth-child(10) { left: 85%; animation-delay: 2s; animation-duration: 6.2s; }
.intro-sparks i:nth-child(11) { left: 92%; animation-delay: 3.8s; }
.intro-sparks i:nth-child(12) { left: 4%; animation-delay: 4.6s; animation-duration: 5.4s; }
@keyframes spark {
  0% { opacity: 0; transform: translate(0, 0); }
  10% { opacity: .9; }
  100% { opacity: 0; transform: translate(30px, -70vh); }
}

/* Seis cuerdas que se tensan de lado a lado */
.intro-strings {
  position: absolute; left: 0; top: 50%; width: 100%; height: min(300px, 42vh); translate: 0 -50%; z-index: -1;
  overflow: visible; pointer-events: none;
}
.intro-strings path {
  fill: none; stroke: rgba(103, 232, 249, .55);
  stroke-dasharray: 1000; stroke-dashoffset: 1000;
  animation: draw .9s cubic-bezier(.6, 0, .2, 1) both, ring 1.4s ease-out both;
}
.intro-strings path:nth-child(1) { stroke-width: 2.6; stroke: rgba(167, 139, 250, .5); animation-delay: .5s, 1.4s; }
.intro-strings path:nth-child(2) { stroke-width: 2.2; animation-delay: .56s, 1.46s; }
.intro-strings path:nth-child(3) { stroke-width: 1.9; stroke: rgba(167, 139, 250, .5); animation-delay: .62s, 1.52s; }
.intro-strings path:nth-child(4) { stroke-width: 1.6; animation-delay: .68s, 1.58s; }
.intro-strings path:nth-child(5) { stroke-width: 1.3; stroke: rgba(167, 139, 250, .5); animation-delay: .74s, 1.64s; }
.intro-strings path:nth-child(6) { stroke-width: 1.1; animation-delay: .8s, 1.7s; }
@keyframes draw { to { stroke-dashoffset: 0; } }
/* Vibración que se apaga sola */
@keyframes ring {
  0%, 100% { transform: translateY(0); }
  8% { transform: translateY(-3px); } 16% { transform: translateY(2.6px); } 24% { transform: translateY(-2px); }
  32% { transform: translateY(1.5px); } 40% { transform: translateY(-1px); } 50% { transform: translateY(.6px); } 60% { transform: translateY(-.3px); }
}

.intro-center { position: relative; display: grid; justify-items: center; text-align: center; gap: 14px; max-width: 100%; }
/* Púa: aparece con un anillo de luz */
.intro-logo { position: relative; width: 84px; height: 84px; display: grid; place-items: center; animation: pop .8s var(--ease-pop) 1.1s both; }
.intro-logo svg {
  width: 84px; height: 84px; fill: #A78BFA; stroke: #0B0D12; stroke-width: .9;
  filter: drop-shadow(0 6px 16px rgba(167, 139, 250, .55));
}
.intro-ring { position: absolute; inset: -10px; border-radius: 50%; border: 2px solid rgba(187, 164, 252, .9); opacity: 0; animation: halo 1.1s var(--ease) 1.2s both; }
@keyframes pop { from { opacity: 0; transform: scale(.2) rotate(-25deg); } }

/* Título: cae letra por letra, sale del desenfoque */
.intro-title { font: 900 clamp(64px, 15vw, 188px)/.84 var(--font-display); text-transform: uppercase; letter-spacing: -.005em; white-space: nowrap; }
.intro-title i { display: inline-block; font-style: normal; animation: drop .7s var(--ease-pop) both; }
.intro-title span i { color: #F3F5FA; text-shadow: 0 0 24px rgba(167, 139, 250, .3); }
.intro-title b { font-weight: 900; }
.intro-title b i {
  background: linear-gradient(180deg, #E4DAFF 0%, #A78BFA 55%, #7C5CE0 100%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.intro-title i:nth-child(1) { animation-delay: 1.30s; }
.intro-title i:nth-child(2) { animation-delay: 1.36s; }
.intro-title i:nth-child(3) { animation-delay: 1.42s; }
.intro-title i:nth-child(4) { animation-delay: 1.48s; }
.intro-title i:nth-child(5) { animation-delay: 1.54s; }
.intro-title i:nth-child(6) { animation-delay: 1.60s; }
.intro-title b i:nth-child(1) { animation-delay: 1.72s; }
.intro-title b i:nth-child(2) { animation-delay: 1.78s; }
.intro-title b i:nth-child(3) { animation-delay: 1.84s; }
.intro-title b i:nth-child(4) { animation-delay: 1.90s; }
.intro-title b i:nth-child(5) { animation-delay: 1.96s; }
@keyframes drop { from { opacity: 0; transform: translateY(-.5em) scale(1.25); } }
.intro-tag { text-shadow: 0 0 3px #0B0D12, 0 1px 14px #0B0D12; color: var(--dim); font-size: clamp(15px, 1.6vw, 19px); max-width: 40ch; animation: up .8s var(--ease) 2.15s both; }
@keyframes up { from { opacity: 0; transform: translateY(14px); } }

/* Botón dentro de una pieza de vidrio */
.intro-glass {
  margin-top: 14px; display: grid; justify-items: center; gap: 10px; padding: 18px 22px 14px; border-radius: 24px;
  background: linear-gradient(155deg, rgba(255, 255, 255, .12), rgba(255, 255, 255, .03) 60%), rgba(20, 22, 36, .35);
  border: 1px solid rgba(255, 255, 255, .16);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, .22), 0 30px 60px -30px rgba(0, 0, 0, .9);
  -webkit-backdrop-filter: blur(22px) saturate(170%); backdrop-filter: blur(22px) saturate(170%);
  animation: up .9s var(--ease) 2.4s both;
}
.intro-cta {
  position: relative; overflow: hidden; display: inline-flex; align-items: center; gap: 12px;
  min-height: 58px; padding: 0 30px; border-radius: 16px;
  font: 800 24px/1 var(--font-display); text-transform: uppercase; letter-spacing: .06em; color: var(--ink);
  background: linear-gradient(180deg, rgba(255, 255, 255, .32), rgba(255, 255, 255, 0) 55%), linear-gradient(135deg, #BBA4FC, #8B6CF0);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, .6), 0 0 0 1px rgba(167, 139, 250, .5), 0 14px 36px -10px rgba(167, 139, 250, .9);
  transition: transform var(--t-fast) var(--ease), box-shadow var(--t-med);
  animation: breathe 2.6s ease-in-out 3.3s infinite;
}
.intro-cta .ic { width: 20px; height: 20px; }
.intro-cta:hover { transform: translateY(-2px); }
.intro-cta:active { transform: scale(.97); }
/* Reflejo que cruza el botón de vez en cuando */
.intro-cta::after {
  content: ''; position: absolute; top: 0; bottom: 0; left: -60%; width: 40%;
  background: linear-gradient(100deg, transparent, rgba(255, 255, 255, .45), transparent);
  transform: skewX(-18deg); animation: sheen 3.6s ease-in-out 3s infinite;
}
@keyframes sheen { 0%, 70% { left: -60%; } 100% { left: 130%; } }
@keyframes breathe { 50% { box-shadow: inset 0 1px 0 rgba(255, 255, 255, .6), 0 0 0 1px rgba(167, 139, 250, .6), 0 14px 50px -6px rgba(167, 139, 250, 1); } }
.intro-hint { color: var(--faint); font-size: var(--fs-xs); }

/* Adelantar: todo salta a su estado final (los bucles siguen) */
/* (adelantar = .settled, al final del archivo) */

/* Entrar: destello, las cuerdas suenan, el telón se abre */
.intro::after {
  content: ''; position: absolute; inset: 0; z-index: 2; pointer-events: none; opacity: 0;
  background: radial-gradient(60% 50% at 50% 50%, rgba(255, 255, 255, .85), rgba(187, 164, 252, .35) 45%, transparent 75%);
}
.intro.go { pointer-events: none; animation: introOut 1.15s var(--ease) .1s both !important; }
.intro.go::after { animation: flash .7s ease-out both; }
.intro.go .intro-strings path { stroke: rgba(243, 245, 250, .9); stroke-dashoffset: 0; animation: ringHard .9s ease-out both !important; }
.intro.go .intro-center { animation: zoomThrough 1.1s cubic-bezier(.6, 0, .3, 1) .15s both !important; }
.intro.go .ib { opacity: 1; }
@keyframes flash { 0% { opacity: 0; } 15% { opacity: 1; } 100% { opacity: 0; } }
@keyframes ringHard {
  0%, 100% { transform: translateY(0); }
  6% { transform: translateY(-7px); } 14% { transform: translateY(6px); } 22% { transform: translateY(-5px); }
  30% { transform: translateY(4px); } 40% { transform: translateY(-2.5px); } 52% { transform: translateY(1.5px); } 66% { transform: translateY(-.6px); }
}
@keyframes zoomThrough { to { opacity: 0; transform: scale(1.5); } }
@keyframes introOut { 0%, 30% { opacity: 1; } 100% { opacity: 0; } }

@media (max-width: 640px) {
  .intro-logo, .intro-logo svg { width: 64px; height: 64px; }
  .intro-title { font-size: clamp(54px, 17vw, 96px); }
  .intro-cta { font-size: 21px; padding: 0 22px; min-height: 54px; }
  .ib { width: 90vw; margin-left: -45vw; }
}
@media (max-height: 520px) {
  .intro-center { gap: 6px; }
  .intro-logo, .intro-logo svg { width: 48px; height: 48px; }
  .intro-title { font-size: clamp(48px, 11vw, 84px); }
  .intro-tag { font-size: 14px; }
  .intro-glass { margin-top: 4px; padding: 10px 16px 8px; }
  .intro-cta { min-height: 46px; font-size: 19px; }
}
/* Movimiento reducido: el telón aparece quieto y se va con un fundido */
@media (prefers-reduced-motion: reduce) {
  .ib { opacity: .8; transform: rotate(var(--to)); }
  .intro-strings path { stroke-dashoffset: 0; }
  .intro-sparks { display: none; }
  .intro.go::after { display: none; }
}

/* Red de seguridad: pasada la entrada, todo queda fijo en su estado final (si el aparato se atrasó con
   la animación, nada se queda a medias). Solo siguen las luces, las chispas y el botón. */
.intro.settled .intro-logo, .intro.settled .intro-ring, .intro.settled .intro-title i, .intro.settled .intro-tag,
.intro.settled .intro-glass, .intro.settled .intro-haze, .intro.settled .intro-strings path { animation: none; opacity: 1; transform: none; }
.intro.settled .intro-ring { opacity: 0; }
.intro.settled .intro-strings path { stroke-dashoffset: 0; }