/* =====================================================================
   Flat Station Training · estilos
   Oscuro por omisión: se usa en la barra, junto a la máquina, y en OLED
   gasta menos. La marca entra por la tipografía (Playing Display) y por el
   dorado; el cian es solo para lo que mide el sensor, para que el ojo sepa
   siempre qué es "tuyo" y qué es la guía.
   ===================================================================== */
@font-face {
  font-family: 'Playing Display';
  src: url('/static/fonts/Playing-Display.otf') format('opentype');
  font-weight: 400;
  font-display: swap;
}
@font-face {
  font-family: 'Acumin Variable';
  src: url('/static/fonts/AcuminVariableConcept.otf') format('opentype');
  font-weight: 300 900;
  font-display: swap;
}

:root {
  --espresso: #14100d;
  --superficie: #211a15;
  --superficie-2: #2b221b;
  --linea: #3a2f26;
  --crema: #c8a27a;
  --leche: #f5efe6;
  --acento: #5ee6d0;
  --ambar: #ff9e4a;
  --texto: #ede6dc;
  --texto-2: #9c8f82;
  --verde: #1f5129;
  --verde-claro: #7ba05b;
  --dorado: #ffbf3f;
  --font-display: 'Playing Display', Georgia, serif;
  --font-sans: 'Acumin Variable', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
  --font-mono: ui-monospace, 'SF Mono', Menlo, Consolas, monospace;
  --r: 14px;
  --r-lg: 22px;
  --ease: cubic-bezier(0.16, 1, 0.3, 1);
  --safe-t: env(safe-area-inset-top, 0px);
  --safe-b: env(safe-area-inset-bottom, 0px);
  color-scheme: dark;
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; background: var(--espresso); }
body {
  margin: 0;
  min-height: 100dvh;
  background: var(--espresso);
  color: var(--texto);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.45;
  -webkit-font-smoothing: antialiased;
  -webkit-tap-highlight-color: transparent;
  overscroll-behavior: none;
}
button, input, select { font: inherit; color: inherit; }
button { cursor: pointer; }
a { color: var(--dorado); }
h1, h2, h3 { font-family: var(--font-display); font-weight: 400; margin: 0; line-height: 1; letter-spacing: 0.01em; text-transform: uppercase; }
h1 { font-size: clamp(2.1rem, 9vw, 3.4rem); color: var(--leche); }
h2 { font-size: clamp(1.5rem, 6.5vw, 2.1rem); color: var(--leche); }
h3 { font-size: 1.15rem; color: var(--leche); }
p { margin: 0; }
.mono { font-family: var(--font-mono); font-variant-numeric: tabular-nums; }
.eyebrow { font-size: 0.72rem; letter-spacing: 0.16em; text-transform: uppercase; color: var(--texto-2); }
.sub { color: var(--texto-2); font-size: 0.95rem; }
[hidden] { display: none !important; }
.sinjs { padding: 2rem; }

/* ---------- arranque ---------- */
.arranque { min-height: 100dvh; display: grid; place-content: center; justify-items: center; gap: 1.2rem; }
.arranque-taza {
  width: 96px; height: 96px; border-radius: 50%;
  background: radial-gradient(circle at 50% 55%, var(--leche) 0 18%, #a8774c 19% 60%, #6b3f22 61% 72%, #eee 73% 82%, transparent 83%);
  animation: latir 1.6s var(--ease) infinite;
}
.arranque-txt { color: var(--texto-2); font-size: 0.9rem; letter-spacing: 0.08em; }
@keyframes latir { 0%, 100% { transform: scale(0.94); } 50% { transform: scale(1); } }

/* ---------- estructura ---------- */
.app { min-height: 100dvh; }
.vista {
  max-width: 640px; margin: 0 auto;
  padding: calc(0.75rem + var(--safe-t)) 1rem calc(6rem + var(--safe-b));
  display: grid; gap: 1.25rem;
  animation: entrar 0.35s var(--ease);
}
@keyframes entrar { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: none; } }
.barra {
  display: flex; align-items: center; gap: 0.75rem; min-height: 48px;
}
.barra .marca { font-family: var(--font-display); font-size: 1.15rem; letter-spacing: 0.04em; color: var(--leche); text-decoration: none; }
.barra .marca b { color: var(--dorado); font-weight: 400; }
.barra .espacio { flex: 1; }
.chip {
  display: inline-flex; align-items: center; gap: 0.4rem;
  padding: 0.35rem 0.7rem; border-radius: 999px;
  background: var(--superficie); border: 1px solid var(--linea);
  font-size: 0.85rem; color: var(--texto); text-decoration: none; white-space: nowrap;
}
.chip .punto { width: 8px; height: 8px; border-radius: 50%; background: var(--acento); }
.chip.apagado .punto { background: var(--texto-2); }
.volver {
  width: 44px; height: 44px; border-radius: 50%; border: 1px solid var(--linea);
  background: var(--superficie); display: inline-grid; place-items: center; color: var(--texto);
}

/* ---------- navegación inferior ---------- */
.nav {
  position: fixed; left: 0; right: 0; bottom: 0; z-index: 20;
  display: grid; grid-template-columns: repeat(4, 1fr);
  padding: 0.4rem 0.5rem calc(0.4rem + var(--safe-b));
  background: rgba(20, 16, 13, 0.92); backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
  border-top: 1px solid var(--linea);
}
.nav a {
  display: grid; justify-items: center; gap: 0.15rem; padding: 0.35rem 0;
  color: var(--texto-2); text-decoration: none; font-size: 0.72rem; letter-spacing: 0.04em;
}
.nav a svg { width: 24px; height: 24px; }
.nav a.activo { color: var(--dorado); }

/* ---------- botones ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 0.5rem;
  min-height: 52px; padding: 0 1.4rem; border-radius: 999px; border: 0;
  background: var(--dorado); color: #1b1206; font-weight: 700; font-size: 1.02rem; text-decoration: none;
  transition: transform 0.15s var(--ease), background 0.15s;
}
.btn:active { transform: scale(0.97); }
.btn.sec { background: var(--superficie-2); color: var(--texto); border: 1px solid var(--linea); }
.btn.fantasma { background: transparent; color: var(--texto); border: 1px solid var(--linea); }
.btn.chico { min-height: 40px; padding: 0 1rem; font-size: 0.92rem; }
.btn.ancho { width: 100%; }
.btn[disabled] { opacity: 0.45; pointer-events: none; }
.fila { display: flex; gap: 0.6rem; flex-wrap: wrap; align-items: center; }
.fila > .btn { flex: 1 1 auto; }

/* ---------- tarjetas ---------- */
.card {
  background: var(--superficie); border: 1px solid var(--linea); border-radius: var(--r-lg);
  padding: 1rem; display: grid; gap: 0.75rem;
}
.card.tocable { text-align: left; width: 100%; color: inherit; transition: transform 0.15s var(--ease), border-color 0.15s; }
.card.tocable:active { transform: scale(0.985); }
.card.destacada { border-color: rgba(255, 191, 63, 0.45); background: linear-gradient(160deg, #2a2116, var(--superficie) 60%); }

/* ---------- inicio ---------- */
.hero { position: relative; display: grid; justify-items: center; gap: 0.6rem; text-align: center; padding-top: 0.25rem; }
.hero-taza { width: min(78vw, 340px); aspect-ratio: 1; position: relative; }
.hero-taza canvas { width: 100%; height: 100%; display: block; }
.hero h1 { margin-top: 0.3rem; }
.hero .sub { max-width: 30rem; }
.nivel-actual { display: grid; grid-template-columns: auto 1fr auto; align-items: center; gap: 0.9rem; }
.nivel-num {
  width: 54px; height: 54px; border-radius: 16px; display: grid; place-items: center;
  font-family: var(--font-display); font-size: 1.5rem; background: var(--verde); color: var(--leche);
}
.barra-prog { height: 6px; border-radius: 999px; background: var(--superficie-2); overflow: hidden; }
.barra-prog > i { display: block; height: 100%; background: linear-gradient(90deg, var(--verde-claro), var(--dorado)); border-radius: inherit; transition: width 0.6s var(--ease); }
.drills { display: grid; grid-template-columns: repeat(2, 1fr); gap: 0.6rem; }
.drill { padding: 0.85rem; border-radius: var(--r); background: var(--superficie); border: 1px solid var(--linea); text-align: left; display: grid; gap: 0.2rem; color: inherit; }
.drill b { font-size: 0.98rem; color: var(--leche); }
.drill span { font-size: 0.8rem; color: var(--texto-2); }
.racha { display: flex; gap: 4px; }
.racha i { flex: 1; height: 22px; border-radius: 5px; background: var(--superficie-2); }
.racha i.si { background: var(--verde-claro); }
.racha i.hoy { outline: 1.5px solid var(--dorado); outline-offset: 1px; }

/* ---------- diseños ---------- */
.grid-disenos { display: grid; grid-template-columns: repeat(2, 1fr); gap: 0.75rem; }
.diseno {
  position: relative; padding: 0.7rem; border-radius: var(--r-lg); background: var(--superficie); border: 1px solid var(--linea);
  display: grid; gap: 0.45rem; text-align: left; color: inherit;
}
.diseno .mini { width: 100%; aspect-ratio: 1; border-radius: 50%; background: radial-gradient(circle, #7a4c2c 0 62%, #e9e4dc 63% 74%, transparent 75%); overflow: hidden; }
.diseno .mini img { width: 100%; height: 100%; display: block; }
.diseno b { color: var(--leche); font-size: 1rem; }
.diseno .meta { display: flex; justify-content: space-between; font-size: 0.78rem; color: var(--texto-2); }
.diseno .candado { display: inline-flex; align-items: center; gap: 0.3rem; position: absolute; top: 0.6rem; right: 0.6rem; padding: 0.15rem 0.5rem; border-radius: 999px; background: rgba(0,0,0,0.55); font-size: 0.72rem; color: var(--texto-2); }
.diseno .mejor { color: var(--acento); font-family: var(--font-mono); }
.estrellas { color: var(--dorado); letter-spacing: 1px; font-size: 0.85rem; }
.estrellas .no { color: var(--linea); }

/* ---------- hoja de ajustes ---------- */
.hoja-fondo { position: fixed; inset: 0; z-index: 40; background: rgba(0,0,0,0.55); animation: aparecer 0.2s; }
.hoja {
  position: fixed; left: 0; right: 0; bottom: 0; z-index: 41; max-width: 640px; margin: 0 auto;
  max-height: 92dvh; overflow: auto;
  background: var(--superficie); border-radius: 26px 26px 0 0; border: 1px solid var(--linea); border-bottom: 0;
  padding: 0.6rem 1.1rem calc(1.2rem + var(--safe-b)); display: grid; gap: 1rem;
  animation: subir 0.35s var(--ease);
}
.hoja::before { content: ''; justify-self: center; width: 40px; height: 4px; border-radius: 4px; background: var(--linea); }
@keyframes subir { from { transform: translateY(100%); } to { transform: none; } }
@keyframes aparecer { from { opacity: 0; } to { opacity: 1; } }
.opciones { display: grid; gap: 0.5rem; }
.opciones.dos { grid-template-columns: repeat(2, 1fr); }
.opciones.tres { grid-template-columns: repeat(3, 1fr); }
.opcion {
  border: 1.5px solid var(--linea); background: var(--superficie-2); border-radius: var(--r);
  padding: 0.7rem 0.75rem; text-align: left; display: grid; gap: 0.15rem; color: inherit;
}
.opcion b { font-size: 0.95rem; color: var(--leche); }
.opcion span { font-size: 0.78rem; color: var(--texto-2); line-height: 1.3; }
.opcion[aria-pressed='true'] { border-color: var(--dorado); background: #2e2416; }
.interruptor { display: flex; align-items: center; justify-content: space-between; gap: 1rem; padding: 0.25rem 0; }
.interruptor input { appearance: none; width: 50px; height: 30px; border-radius: 999px; background: var(--superficie-2); border: 1px solid var(--linea); position: relative; transition: background 0.2s; flex: none; }
.interruptor input::after { content: ''; position: absolute; top: 3px; left: 3px; width: 22px; height: 22px; border-radius: 50%; background: var(--texto-2); transition: transform 0.2s var(--ease), background 0.2s; }
.interruptor input:checked { background: var(--verde); }
.interruptor input:checked::after { transform: translateX(20px); background: var(--leche); }
.rango { display: grid; gap: 0.3rem; }
.rango label { display: flex; justify-content: space-between; font-size: 0.9rem; }
.rango input[type='range'] { width: 100%; accent-color: var(--dorado); }

/* ---------- preparación ---------- */
.prep { min-height: 100dvh; display: grid; align-content: center; gap: 1.4rem; text-align: center; justify-items: center; padding: calc(1rem + var(--safe-t)) 1.25rem calc(1.5rem + var(--safe-b)); max-width: 560px; margin: 0 auto; }
.prep .ilustra { width: min(70vw, 260px); }
.prep ol { text-align: left; display: grid; gap: 0.55rem; margin: 0; padding-left: 1.3rem; color: var(--texto); }
.prep ol li::marker { color: var(--dorado); font-family: var(--font-mono); }
.anillo { width: 150px; height: 150px; position: relative; display: grid; place-items: center; }
.anillo svg { position: absolute; inset: 0; transform: rotate(-90deg); }
.anillo .num { font-family: var(--font-display); font-size: 3.4rem; color: var(--leche); }
.aviso { padding: 0.75rem 0.9rem; border-radius: var(--r); background: #2e2416; border: 1px solid rgba(255,191,63,0.35); font-size: 0.9rem; text-align: left; }
.aviso.info { background: #16231d; border-color: rgba(94,230,208,0.3); }

/* ---------- sesión ---------- */
.sesion { position: fixed; inset: 0; background: #0b0907; overflow: hidden; touch-action: none; user-select: none; -webkit-user-select: none; }
.sesion canvas { position: absolute; inset: 0; width: 100%; height: 100%; display: block; }
.sesion .capa-taza { position: absolute; inset: 0; display: grid; place-items: center; }
.sesion .capa-taza canvas { position: relative; inset: auto; width: min(100vw, 100vh); height: min(100vw, 100vh); }
.hud { position: absolute; inset: 0; pointer-events: none; padding: calc(0.75rem + var(--safe-t)) 1rem calc(0.75rem + var(--safe-b)); display: grid; grid-template-rows: auto 1fr auto; }
.hud-arriba { display: flex; justify-content: space-between; align-items: flex-start; gap: 1rem; }
.hud-nota { font-family: var(--font-display); font-size: clamp(1.6rem, 6vw, 2.6rem); color: var(--leche); text-transform: uppercase; text-shadow: 0 2px 18px rgba(0,0,0,0.7); transition: opacity 0.2s; }
.hud-tiempo { font-family: var(--font-mono); color: var(--texto-2); font-size: 0.95rem; white-space: nowrap; }
.hud-nota { min-height: 1em; }
/* La taza perfecta, chica, abajo a la derecha: arriba está la nota y abajo a la izquierda los botones. */
.sesion canvas.fantasma-vivo {
  inset: auto calc(14px + env(safe-area-inset-right, 0px)) calc(84px + var(--safe-b)) auto;
  width: 30vmin; height: 30vmin; max-width: 180px; max-height: 180px;
  border-radius: 50%; box-shadow: 0 10px 30px rgba(0,0,0,0.5);
}
.fantasma-etq { position: absolute; right: 14px; bottom: calc(84px + 30vmin + 6px + var(--safe-b)); font-size: 0.7rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--texto-2); }
.hud-abajo { display: flex; justify-content: space-between; align-items: flex-end; gap: 1rem; }
.hud-btn { pointer-events: auto; min-height: 48px; padding: 0 1.2rem; border-radius: 999px; border: 1px solid rgba(255,255,255,0.18); background: rgba(20,16,13,0.6); color: var(--texto); backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px); font-weight: 600; }
.hud-prog { position: absolute; left: 0; right: 0; top: 0; height: 3px; background: rgba(255,255,255,0.06); }
.hud-prog i { display: block; height: 100%; background: var(--dorado); width: 0; }
.cuenta-grande { position: absolute; inset: 0; display: grid; place-items: center; font-family: var(--font-display); font-size: 9rem; color: var(--leche); pointer-events: none; text-shadow: 0 6px 40px rgba(0,0,0,0.7); }
.borde-vivo { position: absolute; inset: 0; pointer-events: none; border: 0 solid var(--ambar); transition: border-width 0.25s; }
.borde-vivo.on { border-width: 6px; }
/* La mesa y el metrónomo van en horizontal: si el teléfono está vertical se gira el lienzo. */
.sesion.horizontal.vertical-real .lienzo-giro {
  position: absolute; width: 100vh; height: 100vw; top: 0; left: 100vw; transform-origin: 0 0; transform: rotate(90deg);
}
.lienzo-giro { position: absolute; inset: 0; }

/* ---------- resultado ---------- */
.puntaje { display: grid; justify-items: center; gap: 0.3rem; text-align: center; }
.puntaje .grande { font-family: var(--font-display); font-size: 5.5rem; line-height: 0.9; color: var(--leche); }
.puntaje .estrellas { font-size: 1.6rem; letter-spacing: 4px; }
.comparar { position: relative; width: min(86vw, 380px); aspect-ratio: 1; justify-self: center; border-radius: 50%; touch-action: pan-y; }
.comparar canvas, .comparar img { position: absolute; inset: 0; width: 100%; height: 100%; display: block; }
.comparar .fantasma-capa { clip-path: inset(0 0 0 var(--corte, 50%)); }
.comparar .divisor { position: absolute; top: -4%; bottom: -4%; left: var(--corte, 50%); width: 2px; background: var(--leche); box-shadow: 0 0 10px rgba(0,0,0,0.6); }
.comparar .divisor::after { content: '‹ ›'; position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%); width: 34px; height: 34px; border-radius: 50%; background: var(--leche); color: var(--espresso); display: grid; place-items: center; font-weight: 800; font-size: 0.85rem; }
.comparar-etq { display: flex; justify-content: space-between; font-size: 0.78rem; color: var(--texto-2); width: min(86vw, 380px); justify-self: center; }
.subs { display: grid; gap: 0.6rem; }
.sub-fila { display: grid; grid-template-columns: 7.5rem 1fr 2.6rem; align-items: center; gap: 0.6rem; font-size: 0.92rem; }
.sub-fila .barra-prog { height: 8px; }
.sub-fila .v { font-family: var(--font-mono); text-align: right; color: var(--leche); }
.consejo { display: grid; grid-template-columns: 34px 1fr; gap: 0.7rem; align-items: start; }
.consejo .ico { width: 34px; height: 34px; border-radius: 10px; display: grid; place-items: center; font-size: 1rem; }
.consejo.correccion .ico { background: #3a2a14; color: var(--dorado); }
.consejo.fortaleza .ico { background: #17302a; color: var(--acento); }
.consejo.drill .ico { background: #26301b; color: var(--verde-claro); }
.grafica { width: 100%; height: 170px; display: block; border-radius: var(--r); background: #0f0c0a; }
.repro { display: flex; align-items: center; gap: 0.6rem; }
.repro input { flex: 1; accent-color: var(--acento); }
.leyenda { display: flex; gap: 1rem; font-size: 0.78rem; color: var(--texto-2); flex-wrap: wrap; }
.leyenda i { display: inline-block; width: 14px; height: 3px; border-radius: 2px; vertical-align: middle; margin-right: 0.35rem; }

/* ---------- progreso ---------- */
.escalera { display: grid; gap: 0.5rem; }
.peldano { display: grid; grid-template-columns: 44px 1fr auto; gap: 0.8rem; align-items: center; padding: 0.75rem; border-radius: var(--r); background: var(--superficie); border: 1px solid var(--linea); text-align: left; color: inherit; width: 100%; }
.peldano .n { width: 44px; height: 44px; border-radius: 12px; display: grid; place-items: center; font-family: var(--font-display); font-size: 1.15rem; background: var(--superficie-2); color: var(--texto-2); }
.peldano.aprobado .n { background: var(--verde); color: var(--leche); }
.peldano.actual { border-color: rgba(255,191,63,0.5); }
.peldano.actual .n { background: var(--dorado); color: #1b1206; }
.peldano .estado { font-size: 0.78rem; color: var(--texto-2); text-align: right; }
.lista-ses { display: grid; gap: 0.4rem; }
.ses { display: grid; grid-template-columns: 1fr auto; gap: 0.2rem 0.8rem; padding: 0.65rem 0.8rem; border-radius: var(--r); background: var(--superficie); border: 1px solid var(--linea); font-size: 0.9rem; }
.ses .t { color: var(--texto-2); font-size: 0.78rem; }
.ses .p { font-family: var(--font-mono); font-size: 1.15rem; color: var(--leche); grid-row: span 2; align-self: center; }

/* ---------- equipo ---------- */
.form { display: grid; gap: 0.75rem; }
.campo { display: grid; gap: 0.3rem; }
.campo label { font-size: 0.85rem; color: var(--texto-2); }
.campo input { min-height: 50px; padding: 0 0.95rem; border-radius: var(--r); border: 1.5px solid var(--linea); background: var(--superficie-2); color: var(--leche); font-size: 1.05rem; }
.campo input:focus { outline: none; border-color: var(--dorado); }
.error { color: var(--ambar); font-size: 0.9rem; }
.tabla-equipo { width: 100%; overflow-x: auto; }
.tabla-equipo table { border-collapse: separate; border-spacing: 0; width: 100%; min-width: 520px; font-size: 0.85rem; }
.tabla-equipo th, .tabla-equipo td { padding: 0.55rem 0.4rem; border-bottom: 1px solid var(--linea); text-align: center; }
.tabla-equipo th:first-child, .tabla-equipo td:first-child { text-align: left; position: sticky; left: 0; background: var(--espresso); }
.tabla-equipo th { color: var(--texto-2); font-weight: 600; font-size: 0.72rem; text-transform: uppercase; letter-spacing: 0.06em; }
.celda { display: inline-grid; place-items: center; width: 30px; height: 30px; border-radius: 9px; background: var(--superficie-2); color: var(--texto-2); border: 0; font-size: 0.8rem; }
.celda.app { background: #2e2416; color: var(--dorado); }
.celda.barra { background: var(--verde); color: var(--leche); }
.alerta { color: var(--ambar); font-size: 0.75rem; }

.toast { position: fixed; left: 50%; bottom: calc(5.5rem + var(--safe-b)); transform: translateX(-50%); z-index: 60; padding: 0.7rem 1.1rem; border-radius: 999px; background: var(--leche); color: var(--espresso); font-weight: 600; font-size: 0.92rem; box-shadow: 0 10px 30px rgba(0,0,0,0.4); animation: entrar 0.3s var(--ease); max-width: 90vw; text-align: center; }

@media (min-width: 720px) {
  .grid-disenos { grid-template-columns: repeat(3, 1fr); }
  .drills { grid-template-columns: repeat(4, 1fr); }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
}
/* Con la miniatura ya pintada, el círculo provisional de CSS sobra. */
.diseno .mini:has(img[src]) { background: none; }