/* ═══════════════════════════════════════════════════════════
   TEATRIX — Sistema de diseño premium
   Tipografía: Space Grotesk (display) + JetBrains Mono (datos)
   ═══════════════════════════════════════════════════════════ */

:root {
  --bg-0: #05060d;
  --bg-1: #0a0c18;
  --bg-2: #10142a;
  --glass: rgba(16, 20, 42, 0.55);
  --glass-border: rgba(120, 160, 255, 0.14);
  --ink-1: #eef2ff;
  --ink-2: #8b93b8;
  --ink-3: #4a5278;
  --accent: #46f0ff;
  --accent-2: #b653ff;
  --accent-3: #ff4d9d;
  --gold: #ffd166;
  --font-display: 'Space Grotesk', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
  --r-lg: 18px;
  --r-md: 12px;
  --shadow-glow: 0 0 40px rgba(70, 240, 255, 0.12);
  --ease-premium: cubic-bezier(0.22, 1, 0.36, 1);
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html, body {
  height: 100%;
  overflow: hidden;
  background: var(--bg-0);
  color: var(--ink-1);
  font-family: var(--font-display);
  -webkit-font-smoothing: antialiased;
  user-select: none;
  -webkit-user-select: none;
  touch-action: manipulation;
}

button { font-family: inherit; cursor: pointer; }

/* ── Capas de fondo ── */
#bg-canvas {
  position: fixed; inset: 0;
  width: 100%; height: 100%;
  z-index: 0;
}
#vignette {
  position: fixed; inset: 0; z-index: 1; pointer-events: none;
  background: radial-gradient(ellipse at 50% 42%, transparent 35%, rgba(3, 4, 10, 0.65) 100%);
}
#scanlines {
  position: fixed; inset: 0; z-index: 1; pointer-events: none;
  background: repeating-linear-gradient(0deg, transparent 0 3px, rgba(255,255,255,0.012) 3px 4px);
  mix-blend-mode: overlay;
}
#grain {
  position: fixed; inset: -50%; z-index: 1; pointer-events: none; opacity: 0.04;
  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='0.9' numOctaves='3'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  animation: grainShift 0.6s steps(3) infinite;
}
@keyframes grainShift {
  0% { transform: translate(0,0); } 33% { transform: translate(-4%, 3%); }
  66% { transform: translate(3%, -2%); } 100% { transform: translate(0,0); }
}

/* ══════════ PANTALLA DE CARGA ══════════ */
#loader {
  position: fixed; inset: 0; z-index: 100;
  display: flex; align-items: center; justify-content: center;
  background: radial-gradient(ellipse at 50% 45%, #0a0d1c 0%, #04050b 75%);
  transition: opacity 0.7s var(--ease-premium), visibility 0.7s;
}
#loader.done { opacity: 0; visibility: hidden; }
.loader-core { display: flex; flex-direction: column; align-items: center; gap: 18px; }
.loader-mark { display: grid; grid-template-columns: repeat(2, 22px); grid-gap: 5px; margin-bottom: 8px; }
.loader-mark span {
  width: 22px; height: 22px; border-radius: 5px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  box-shadow: 0 0 18px rgba(70,240,255,0.5);
  animation: loaderBlock 1.4s var(--ease-premium) infinite;
}
.loader-mark span:nth-child(1) { animation-delay: 0s; }
.loader-mark span:nth-child(2) { animation-delay: 0.15s; }
.loader-mark span:nth-child(3) { animation-delay: 0.45s; }
.loader-mark span:nth-child(4) { animation-delay: 0.3s; }
@keyframes loaderBlock {
  0%, 100% { transform: scale(0.7); opacity: 0.3; }
  40% { transform: scale(1); opacity: 1; }
}
.loader-title {
  font-size: clamp(34px, 8vw, 64px); font-weight: 700; letter-spacing: 0.34em;
  background: linear-gradient(180deg, #fff, #9fb4ff 60%, var(--accent));
  -webkit-background-clip: text; background-clip: text; color: transparent;
  margin-left: 0.34em;
}
.loader-sub { font-family: var(--font-mono); font-size: 10px; letter-spacing: 0.42em; color: var(--ink-2); }
.loader-bar { width: min(320px, 70vw); height: 2px; background: rgba(255,255,255,0.08); border-radius: 99px; overflow: hidden; margin-top: 6px; }
.loader-bar-fill { height: 100%; width: 0%; background: linear-gradient(90deg, var(--accent), var(--accent-2)); box-shadow: 0 0 12px var(--accent); transition: width 0.3s var(--ease-premium); }
.loader-status { font-family: var(--font-mono); font-size: 9px; letter-spacing: 0.28em; color: var(--ink-3); }

/* ── Pantallas ── */
.screen {
  position: fixed; inset: 0; z-index: 2;
  display: none;
  flex-direction: column;
  padding: clamp(16px, 3vh, 36px) clamp(16px, 4vw, 56px);
  opacity: 0;
}
.screen.is-active {
  display: flex;
  animation: screenIn 0.7s var(--ease-premium) forwards;
}
@keyframes screenIn {
  from { opacity: 0; transform: translateY(14px) scale(0.992); filter: blur(6px); }
  to   { opacity: 1; transform: none; filter: none; }
}

/* Transición wipe */
#wipe {
  position: fixed; inset: 0; z-index: 50; pointer-events: none;
  background: linear-gradient(115deg, transparent 0%, rgba(70,240,255,0.10) 38%, rgba(8,10,22,0.98) 50%, rgba(182,83,255,0.10) 62%, transparent 100%);
  background-size: 300% 100%;
  background-position: 120% 0;
  opacity: 0;
}
#wipe.run {
  animation: wipeRun 0.62s var(--ease-premium) forwards;
}
@keyframes wipeRun {
  0%   { opacity: 1; background-position: 120% 0; }
  100% { opacity: 1; background-position: -120% 0; }
}

/* ── Tags de sistema ── */
.sys-tag {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.22em;
  color: var(--ink-2);
  text-transform: uppercase;
}
.sys-tag strong { color: var(--accent); font-weight: 600; }

/* ══════════ HOME ══════════ */
#screen-home { justify-content: space-between; align-items: stretch; }
.home-header, .home-footer {
  display: flex; justify-content: space-between; align-items: center; gap: 16px;
}
.home-hero {
  flex: 1;
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  gap: clamp(14px, 2.6vh, 26px);
  text-align: center;
}
.logo {
  font-size: clamp(56px, 13vw, 150px);
  font-weight: 700;
  letter-spacing: 0.08em;
  line-height: 0.95;
  display: flex;
}
.logo-letter {
  background: linear-gradient(180deg, #ffffff 0%, #9fb4ff 55%, #46f0ff 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  filter: drop-shadow(0 0 26px rgba(70, 240, 255, 0.35));
  animation: letterFloat 4.2s ease-in-out infinite;
  animation-delay: calc(var(--i, 0) * 0.12s);
}
.logo-letter:nth-child(1) { --i: 0; } .logo-letter:nth-child(2) { --i: 1; }
.logo-letter:nth-child(3) { --i: 2; } .logo-letter:nth-child(4) { --i: 3; }
.logo-letter:nth-child(5) { --i: 4; } .logo-letter:nth-child(6) { --i: 5; }
.logo-letter:nth-child(7) { --i: 6; }
@keyframes letterFloat {
  0%, 100% { transform: translateY(0); }
  50%      { transform: translateY(-7px); }
}
.logo-sub {
  font-family: var(--font-mono);
  font-size: clamp(9px, 1.4vw, 13px);
  letter-spacing: 0.55em;
  color: var(--ink-2);
}
.logo-line {
  width: min(420px, 60vw); height: 1px;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
  opacity: 0.6;
}
.home-nav { display: flex; gap: 14px; flex-wrap: wrap; justify-content: center; }
.home-eyebrow {
  font-family: var(--font-mono); font-size: 10px; letter-spacing: 0.5em;
  color: var(--accent); opacity: 0.85;
  padding: 6px 16px; border: 1px solid var(--glass-border); border-radius: 99px;
  background: rgba(70,240,255,0.04);
  animation: screenIn 1s var(--ease-premium) both 0.2s;
}
.home-features { display: flex; gap: 10px; flex-wrap: wrap; justify-content: center; margin-top: 10px; }
.feat-pill {
  font-family: var(--font-mono); font-size: 10px; letter-spacing: 0.18em;
  color: var(--ink-2);
  padding: 7px 14px; border-radius: 99px;
  border: 1px solid var(--glass-border); background: rgba(255,255,255,0.02);
  display: inline-flex; align-items: center; gap: 7px;
  transition: all 0.3s var(--ease-premium);
}
.feat-pill i { color: var(--accent); font-style: normal; }
.feat-pill:hover { color: var(--ink-1); border-color: rgba(70,240,255,0.35); transform: translateY(-2px); }

/* ── Botones ── */
.btn {
  border: 1px solid var(--glass-border);
  background: var(--glass);
  color: var(--ink-1);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.2em;
  padding: 13px 26px;
  border-radius: var(--r-md);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  transition: all 0.3s var(--ease-premium);
  position: relative;
  overflow: hidden;
}
.btn:hover, .btn:focus-visible {
  border-color: rgba(70, 240, 255, 0.5);
  box-shadow: 0 0 28px rgba(70, 240, 255, 0.18), inset 0 0 18px rgba(70, 240, 255, 0.05);
  transform: translateY(-2px);
  outline: none;
}
.btn:active { transform: translateY(0) scale(0.98); }
.btn-primary {
  border-color: rgba(70, 240, 255, 0.45);
  background: linear-gradient(135deg, rgba(70,240,255,0.14), rgba(182,83,255,0.12));
  box-shadow: var(--shadow-glow);
  color: #fff;
}
.btn-primary::after {
  content: ''; position: absolute; top: 0; left: -60%; width: 40%; height: 100%;
  background: linear-gradient(100deg, transparent, rgba(255,255,255,0.28), transparent);
  transform: skewX(-20deg);
  animation: btnShine 3.4s ease-in-out infinite;
}
@keyframes btnShine {
  0%, 60% { left: -60%; } 80%, 100% { left: 130%; }
}
.btn-xl { font-size: 14px; padding: 18px 46px; letter-spacing: 0.3em; }
.btn-glyph { color: var(--accent); margin-right: 8px; }
.btn-ghost { background: rgba(255,255,255,0.02); }
.btn-back { padding: 10px 18px; }

/* ══════════ CABECERAS DE PANTALLA ══════════ */
.screen-header {
  display: flex; align-items: center; gap: 22px;
  margin-bottom: clamp(18px, 3.4vh, 38px);
  flex-wrap: wrap;
}
.screen-title {
  font-size: clamp(20px, 3.4vw, 34px);
  font-weight: 600;
  letter-spacing: 0.14em;
  flex: 1;
  background: linear-gradient(90deg, #fff, #9fb4ff);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* ══════════ MODOS ══════════ */
#screen-modes, #screen-puzzles, #screen-help, #screen-settings { overflow-y: auto; }
.mode-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
}
.mode-card {
  position: relative;
  border: 1px solid var(--glass-border);
  background: var(--glass);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-radius: var(--r-lg);
  padding: 24px;
  cursor: pointer;
  transition: all 0.35s var(--ease-premium);
  overflow: hidden;
  display: flex; flex-direction: column; gap: 12px;
}
.mode-card::before {
  content: '';
  position: absolute; inset: 0;
  background: linear-gradient(135deg, rgba(70,240,255,0.09), transparent 55%, rgba(182,83,255,0.08));
  opacity: 0;
  transition: opacity 0.35s;
}
.mode-card:hover, .mode-card:focus-visible {
  transform: translateY(-5px);
  border-color: rgba(70, 240, 255, 0.45);
  box-shadow: 0 18px 50px rgba(0,0,0,0.45), 0 0 32px rgba(70,240,255,0.12);
  outline: none;
}
.mode-card:hover::before { opacity: 1; }
.mode-card--wide { grid-column: 1 / -1; }
.screen.is-active .mode-card { animation: cardStagger 0.6s var(--ease-premium) both; }
.screen.is-active .mode-card:nth-child(1) { animation-delay: 0.05s; }
.screen.is-active .mode-card:nth-child(2) { animation-delay: 0.12s; }
.screen.is-active .mode-card:nth-child(3) { animation-delay: 0.19s; }
.screen.is-active .mode-card:nth-child(4) { animation-delay: 0.26s; }
.screen.is-active .mode-card:nth-child(5) { animation-delay: 0.33s; }
@keyframes cardStagger {
  from { opacity: 0; transform: translateY(24px) scale(0.97); }
  to   { opacity: 1; transform: none; }
}
.mode-index {
  font-family: var(--font-mono);
  font-size: 11px; letter-spacing: 0.3em;
  color: var(--accent);
}
.mode-name { font-size: 21px; font-weight: 600; letter-spacing: 0.1em; line-height: 1.2; }
.mode-desc { font-size: 13px; color: var(--ink-2); line-height: 1.55; flex: 1; }
.mode-meta {
  font-family: var(--font-mono);
  font-size: 10px; letter-spacing: 0.18em;
  color: var(--ink-3);
}

/* Modificadores */
.modifier-bar {
  margin-top: 22px;
  display: flex; align-items: center; gap: 16px; flex-wrap: wrap;
  border: 1px solid var(--glass-border);
  border-radius: var(--r-md);
  background: rgba(10, 12, 24, 0.5);
  padding: 14px 20px;
}
.mod-toggle { display: flex; align-items: center; gap: 8px; cursor: pointer; }
.mod-toggle input { accent-color: var(--accent); width: 15px; height: 15px; }
.mod-toggle span {
  font-family: var(--font-mono); font-size: 11px;
  letter-spacing: 0.14em; color: var(--ink-2);
}
.mod-toggle input:checked + span { color: var(--accent); }
.mod-toggle em { color: var(--gold); font-style: normal; margin-left: 4px; }

/* ══════════ PUZZLES ══════════ */
.puzzle-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 14px;
}
.puzzle-card {
  border: 1px solid var(--glass-border);
  background: var(--glass);
  border-radius: var(--r-md);
  padding: 18px;
  cursor: pointer;
  text-align: left;
  color: var(--ink-1);
  transition: all 0.3s var(--ease-premium);
  display: flex; flex-direction: column; gap: 8px;
}
.puzzle-card:hover { transform: translateY(-3px); border-color: rgba(70,240,255,0.45); }
.puzzle-card.is-done { border-color: rgba(255, 209, 102, 0.4); }
.puzzle-card h3 { font-size: 15px; letter-spacing: 0.1em; }
.puzzle-card p { font-family: var(--font-mono); font-size: 10px; color: var(--ink-2); letter-spacing: 0.12em; }
.puzzle-card .done-star { color: var(--gold); }

/* ══════════ HELP ══════════ */
.help-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 16px;
}
.help-card {
  border: 1px solid var(--glass-border);
  background: var(--glass);
  border-radius: var(--r-lg);
  padding: 22px;
}
.help-card h3 {
  font-size: 13px; letter-spacing: 0.24em;
  color: var(--accent); margin-bottom: 14px;
}
.help-card ul { list-style: none; display: flex; flex-direction: column; gap: 10px; }
.help-card li { font-size: 13px; color: var(--ink-2); line-height: 1.5; }
kbd {
  font-family: var(--font-mono); font-size: 11px;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.14);
  border-bottom-width: 2px;
  border-radius: 6px;
  padding: 2px 8px;
  margin-right: 4px;
  color: var(--ink-1);
}

/* ══════════ AJUSTES ══════════ */
.settings-list { display: flex; flex-direction: column; gap: 14px; max-width: 620px; }
.setting-block {
  border: 1px solid var(--glass-border);
  background: var(--glass);
  border-radius: var(--r-md);
  padding: 16px 20px;
}
.setting-block-label {
  font-family: var(--font-mono); font-size: 11px;
  letter-spacing: 0.22em; color: var(--ink-2);
  display: block; margin-bottom: 14px;
}
.theme-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(96px, 1fr)); gap: 10px; }
.theme-chip {
  border: 1px solid var(--glass-border);
  background: rgba(255,255,255,0.02);
  border-radius: 12px;
  padding: 12px 10px;
  cursor: pointer;
  text-align: center;
  transition: all 0.3s var(--ease-premium);
  color: var(--ink-2);
}
.theme-chip:hover { transform: translateY(-3px); border-color: rgba(255,255,255,0.25); }
.theme-chip.is-active {
  border-color: var(--accent);
  box-shadow: 0 0 22px rgba(70,240,255,0.22), inset 0 0 14px rgba(70,240,255,0.06);
}
.theme-swatches { display: flex; gap: 3px; justify-content: center; margin-bottom: 9px; }
.theme-swatch { width: 12px; height: 18px; border-radius: 3px; box-shadow: 0 0 8px currentColor; }
.theme-chip-name { font-family: var(--font-mono); font-size: 10px; letter-spacing: 0.14em; }
.theme-chip.is-active .theme-chip-name { color: var(--accent); }
.setting-row {
  display: flex; justify-content: space-between; align-items: center; gap: 22px;
  border: 1px solid var(--glass-border);
  background: var(--glass);
  border-radius: var(--r-md);
  padding: 16px 20px;
  font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.18em;
  color: var(--ink-2);
}
.setting-row input[type="range"] { accent-color: var(--accent); width: 45%; }
.setting-row input[type="checkbox"] { accent-color: var(--accent); width: 18px; height: 18px; }

/* ══════════ JUEGO ══════════ */
#screen-game { padding: clamp(8px, 1.6vh, 20px); align-items: center; justify-content: center; }
.game-layout {
  display: flex;
  gap: clamp(10px, 1.8vw, 24px);
  align-items: stretch;
  justify-content: center;
  height: 100%;
  max-height: 100%;
  width: 100%;
}

.hud-panel {
  display: flex; flex-direction: column; gap: 12px;
  width: clamp(140px, 16vw, 190px);
  justify-content: flex-start;
  padding-top: 4px;
}
.hud-block {
  border: 1px solid var(--glass-border);
  background: var(--glass);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-radius: var(--r-md);
  padding: 14px;
}
.hud-label {
  font-family: var(--font-mono);
  font-size: 9px; letter-spacing: 0.3em;
  color: var(--ink-3);
  margin-bottom: 8px;
}
#hold-canvas, #next-canvas { display: block; width: 100%; height: auto; }

.hud-stats { display: grid; grid-template-columns: 1fr; gap: 6px; }
.hud-stats div { display: flex; justify-content: space-between; align-items: baseline; }
.hud-stats dt { font-family: var(--font-mono); font-size: 9px; letter-spacing: 0.16em; color: var(--ink-3); }
.hud-stats dd { font-family: var(--font-mono); font-size: 13px; font-weight: 600; color: var(--ink-1); }

.hud-score .score-value {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(20px, 2.3vw, 30px);
  font-weight: 800;
  letter-spacing: 0.04em;
  color: #fff;
  text-shadow: 0 0 22px rgba(70, 240, 255, 0.4);
  transition: transform 0.18s var(--ease-premium);
}
.hud-score .score-value.bump { transform: scale(1.12); color: var(--accent); }

.combo-row { display: flex; gap: 6px; margin-top: 8px; min-height: 22px; }
.combo-chip {
  font-family: var(--font-mono); font-size: 10px; font-weight: 600;
  letter-spacing: 0.14em;
  color: #05060d;
  background: var(--accent);
  padding: 3px 9px;
  border-radius: 99px;
  box-shadow: 0 0 16px rgba(70, 240, 255, 0.5);
  animation: chipPop 0.3s var(--ease-premium);
}
.combo-chip--b2b { background: var(--gold); box-shadow: 0 0 16px rgba(255, 209, 102, 0.5); }
@keyframes chipPop { from { transform: scale(0.6); opacity: 0; } to { transform: scale(1); } }

.hud-duo { display: flex; justify-content: space-between; gap: 10px; }
.hud-big {
  font-family: var(--font-mono);
  font-size: clamp(17px, 2vw, 24px);
  font-weight: 600;
}
.hud-time { color: var(--accent); }
.level-progress {
  margin-top: 10px; height: 3px;
  background: rgba(255,255,255,0.07);
  border-radius: 99px; overflow: hidden;
}
.level-progress-fill {
  height: 100%; width: 0%;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  border-radius: 99px;
  transition: width 0.4s var(--ease-premium);
  box-shadow: 0 0 10px rgba(70,240,255,0.6);
}

/* Bloque de ritmo */
.beat-track {
  position: relative; height: 34px;
  border: 1px solid var(--glass-border);
  border-radius: 8px;
  overflow: hidden;
  background: rgba(0,0,0,0.3);
}
.beat-track::after {
  content: ''; position: absolute; left: 50%; top: 0; bottom: 0;
  width: 2px; background: var(--accent-3);
  box-shadow: 0 0 8px var(--accent-3);
}
.beat-pulse {
  position: absolute; top: 6px; bottom: 6px; width: 8px;
  border-radius: 4px;
  background: var(--accent);
  box-shadow: 0 0 12px var(--accent);
}
.hud-mini { font-family: var(--font-mono); font-size: 9px; letter-spacing: 0.2em; color: var(--ink-2); display: block; margin-top: 8px; }

/* Escenario */
.stage { display: flex; flex-direction: column; align-items: center; gap: 10px; height: 100%; justify-content: center; }
.stage-frame {
  position: relative;
  border: 1px solid rgba(120, 160, 255, 0.22);
  border-radius: 14px;
  background: rgba(5, 7, 16, 0.72);
  box-shadow:
    0 0 0 1px rgba(0,0,0,0.5),
    0 24px 70px rgba(0,0,0,0.6),
    0 0 60px rgba(70, 240, 255, 0.07),
    inset 0 0 70px rgba(10, 14, 36, 0.8);
  overflow: hidden;
}
.stage-frame.shake { animation: stageShake 0.22s linear; }
@keyframes stageShake {
  0%, 100% { transform: translate(0, 0); }
  25% { transform: translate(-3px, 2px); }
  50% { transform: translate(3px, -2px); }
  75% { transform: translate(-2px, -1px); }
}
.stage-frame.shake-big { animation: stageShakeBig 0.34s linear; }
@keyframes stageShakeBig {
  0%, 100% { transform: translate(0, 0); }
  20% { transform: translate(-6px, 4px) rotate(-0.4deg); }
  40% { transform: translate(6px, -4px) rotate(0.4deg); }
  60% { transform: translate(-4px, -3px); }
  80% { transform: translate(3px, 3px); }
}
#board-canvas, #fx-canvas { display: block; }
#fx-canvas { position: absolute; inset: 0; pointer-events: none; }

/* ── Post-procesado: flash y glitch ── */
.stage-flash {
  position: absolute; inset: 0; z-index: 4; pointer-events: none;
  background: radial-gradient(ellipse at center, rgba(255,255,255,0.85), transparent 70%);
  opacity: 0; mix-blend-mode: screen;
}
.stage-flash.fire { animation: stageFlash 0.4s var(--ease-premium); }
@keyframes stageFlash { 0% { opacity: 0.9; } 100% { opacity: 0; } }
.stage-flash.fire-gold {
  background: radial-gradient(ellipse at center, rgba(255,209,102,0.9), transparent 72%);
  animation: stageFlash 0.7s var(--ease-premium);
}
.stage-glitch {
  position: absolute; inset: 0; z-index: 4; pointer-events: none; opacity: 0;
  background:
    repeating-linear-gradient(0deg, rgba(255,0,80,0.10) 0 2px, transparent 2px 5px),
    repeating-linear-gradient(0deg, rgba(0,240,255,0.10) 1px 3px, transparent 3px 6px);
  mix-blend-mode: screen;
}
.stage-glitch.fire { animation: glitchFlick 0.34s steps(2) ; }
@keyframes glitchFlick {
  0% { opacity: 0.9; transform: translateX(-4px); }
  25% { opacity: 0.5; transform: translateX(5px); }
  50% { opacity: 0.8; transform: translateX(-3px); }
  100% { opacity: 0; transform: none; }
}
/* Aberración cromática sobre el frame en golpes grandes */
.stage-frame.chroma { animation: chromaPulse 0.45s var(--ease-premium); }
@keyframes chromaPulse {
  0% { filter: none; }
  30% { filter: drop-shadow(3px 0 0 rgba(255,0,90,0.55)) drop-shadow(-3px 0 0 rgba(0,240,255,0.55)); }
  100% { filter: none; }
}

.stage-callout {
  position: absolute; inset: 0;
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  pointer-events: none;
  z-index: 5;
}
.callout-text {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(22px, 3.4vw, 42px);
  letter-spacing: 0.18em;
  text-align: center;
  background: linear-gradient(90deg, var(--accent), #fff, var(--accent-2));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  filter: drop-shadow(0 0 24px rgba(70, 240, 255, 0.5));
  animation: calloutIn 1.1s var(--ease-premium) forwards;
}
.callout-text small {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.34em;
  letter-spacing: 0.5em;
  color: var(--gold);
  -webkit-text-fill-color: var(--gold);
  margin-top: 6px;
}
@keyframes calloutIn {
  0%   { opacity: 0; transform: scale(1.5); filter: blur(8px); }
  18%  { opacity: 1; transform: scale(1); filter: blur(0); }
  78%  { opacity: 1; transform: scale(1.02); }
  100% { opacity: 0; transform: scale(0.94) translateY(-14px); }
}

.stage-countdown {
  position: absolute; inset: 0; z-index: 6;
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-mono);
  font-size: clamp(60px, 10vw, 120px);
  font-weight: 800;
  color: var(--accent);
  text-shadow: 0 0 50px rgba(70, 240, 255, 0.6);
  background: rgba(5, 6, 13, 0.45);
  backdrop-filter: blur(3px);
}
.stage-countdown.tick { animation: countTick 0.9s var(--ease-premium); }
@keyframes countTick {
  0% { transform: scale(1.6); opacity: 0; }
  30% { transform: scale(1); opacity: 1; }
  100% { transform: scale(0.92); opacity: 0.85; }
}
.stage-bottom { display: flex; gap: 20px; align-items: center; flex-wrap: wrap; justify-content: center; }

/* ══════════ OVERLAYS ══════════ */
.overlay {
  position: fixed; inset: 0; z-index: 20;
  display: flex; align-items: center; justify-content: center;
  background: rgba(4, 5, 12, 0.7);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  animation: overlayIn 0.4s var(--ease-premium);
  padding: 20px;
}
@keyframes overlayIn { from { opacity: 0; } to { opacity: 1; } }
.overlay[hidden] { display: none; }
.overlay-card {
  border: 1px solid var(--glass-border);
  background: rgba(12, 15, 32, 0.85);
  border-radius: 22px;
  padding: clamp(28px, 5vh, 48px) clamp(28px, 5vw, 60px);
  display: flex; flex-direction: column; align-items: center; gap: 14px;
  box-shadow: 0 30px 90px rgba(0,0,0,0.6), 0 0 60px rgba(70,240,255,0.08);
  animation: cardIn 0.55s var(--ease-premium);
  max-width: 92vw;
  max-height: 90vh;
  overflow-y: auto;
}
@keyframes cardIn { from { transform: translateY(26px) scale(0.96); opacity: 0; } to { transform: none; opacity: 1; } }
.overlay-title { font-size: clamp(22px, 3.6vw, 36px); letter-spacing: 0.18em; font-weight: 700; text-align: center; }
.overlay-title--score {
  font-family: var(--font-mono);
  font-size: clamp(38px, 7vw, 72px);
  letter-spacing: 0.04em;
  background: linear-gradient(180deg, #fff, var(--accent));
  -webkit-background-clip: text; background-clip: text; color: transparent;
  filter: drop-shadow(0 0 30px rgba(70,240,255,0.35));
}
.overlay-sub {
  font-family: var(--font-mono); font-size: 11px;
  letter-spacing: 0.4em; color: var(--ink-2);
}
#result-newbest { color: var(--gold); animation: bestBlink 1s ease-in-out infinite; }
@keyframes bestBlink { 50% { opacity: 0.45; } }
.overlay-actions { display: flex; gap: 12px; flex-wrap: wrap; justify-content: center; margin-top: 8px; }
.result-grid {
  display: grid; grid-template-columns: repeat(2, minmax(130px, 1fr));
  gap: 10px 30px;
  margin: 10px 0;
}
.result-grid div { display: flex; justify-content: space-between; gap: 18px; }
.result-grid dt { font-family: var(--font-mono); font-size: 10px; letter-spacing: 0.18em; color: var(--ink-3); }
.result-grid dd { font-family: var(--font-mono); font-size: 13px; font-weight: 600; }

/* ══════════ PERFIL / STATS / RANKING ══════════ */
#screen-stats, #screen-achievements { overflow-y: auto; }
.stats-overview { display: grid; grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); gap: 12px; margin-bottom: 22px; }
.stat-tile {
  border: 1px solid var(--glass-border); background: var(--glass);
  border-radius: var(--r-md); padding: 18px;
  display: flex; flex-direction: column; gap: 4px;
}
.stat-tile--name { border-color: rgba(70,240,255,0.3); }
.stat-tile-val { font-family: var(--font-mono); font-size: 20px; font-weight: 600; color: var(--ink-1); }
.stat-tile--name .stat-tile-val { color: var(--accent); font-size: 16px; outline: none; cursor: text; border-bottom: 1px dashed transparent; }
.stat-tile--name .stat-tile-val:focus { border-bottom-color: var(--accent); }
.stat-tile-key { font-family: var(--font-mono); font-size: 9px; letter-spacing: 0.2em; color: var(--ink-3); }
.stats-charts { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 16px; }
.stats-card { border: 1px solid var(--glass-border); background: var(--glass); border-radius: var(--r-lg); padding: 22px; }
.stats-card-title { font-size: 12px; letter-spacing: 0.18em; color: var(--accent); margin-bottom: 18px; }
.rec-row { display: grid; grid-template-columns: 80px 1fr 80px; align-items: center; gap: 12px; margin-bottom: 12px; }
.rec-name { font-family: var(--font-mono); font-size: 10px; letter-spacing: 0.14em; color: var(--ink-2); }
.rec-bar { height: 6px; background: rgba(255,255,255,0.06); border-radius: 99px; overflow: hidden; }
.rec-fill { height: 100%; background: linear-gradient(90deg, var(--accent), var(--accent-2)); box-shadow: 0 0 10px var(--accent); border-radius: 99px; transition: width 0.8s var(--ease-premium); }
.rec-val { font-family: var(--font-mono); font-size: 11px; color: var(--ink-1); text-align: right; }
.rank-tabs { display: flex; gap: 6px; margin-bottom: 14px; flex-wrap: wrap; }
.rank-tab {
  font-family: var(--font-mono); font-size: 9px; letter-spacing: 0.12em;
  padding: 6px 12px; border-radius: 99px; border: 1px solid var(--glass-border);
  background: rgba(255,255,255,0.02); color: var(--ink-2); transition: all 0.25s;
}
.rank-tab.is-active { border-color: var(--accent); color: var(--accent); }
.rank-list { list-style: none; display: flex; flex-direction: column; gap: 6px; }
.rank-loading { font-family: var(--font-mono); font-size: 10px; letter-spacing: 0.16em; color: var(--ink-3); padding: 12px 0; }
.rank-row { display: grid; grid-template-columns: 40px 1fr auto; align-items: center; gap: 10px; padding: 8px 12px; border-radius: 8px; background: rgba(255,255,255,0.02); }
.rank-row.is-me { border: 1px solid rgba(70,240,255,0.4); background: rgba(70,240,255,0.05); }
.rank-pos { font-family: var(--font-mono); font-size: 13px; }
.rank-player { font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.08em; color: var(--ink-1); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.rank-val { font-family: var(--font-mono); font-size: 12px; font-weight: 600; color: var(--accent); }

/* ══════════ TOASTS / LOGROS ══════════ */
#toast-host {
  position: fixed; top: 20px; right: 20px; z-index: 60;
  display: flex; flex-direction: column; gap: 10px; pointer-events: none;
  max-width: 90vw;
}
.toast {
  display: flex; align-items: center; gap: 14px;
  border: 1px solid rgba(255,209,102,0.4);
  background: rgba(14, 17, 34, 0.92);
  backdrop-filter: blur(16px);
  border-radius: 14px;
  padding: 14px 18px;
  box-shadow: 0 16px 50px rgba(0,0,0,0.5), 0 0 30px rgba(255,209,102,0.15);
  transform: translateX(120%);
  opacity: 0;
  transition: transform 0.5s var(--ease-premium), opacity 0.5s;
  min-width: 260px;
}
.toast.show { transform: none; opacity: 1; }
.toast-icon {
  font-size: 26px; color: var(--gold);
  filter: drop-shadow(0 0 12px rgba(255,209,102,0.6));
  flex-shrink: 0;
}
.toast-body { display: flex; flex-direction: column; gap: 2px; }
.toast-tag { font-family: var(--font-mono); font-size: 8px; letter-spacing: 0.3em; color: var(--gold); }
.toast-name { font-size: 14px; letter-spacing: 0.08em; }
.toast-desc { font-family: var(--font-mono); font-size: 10px; color: var(--ink-2); letter-spacing: 0.05em; }

.ach-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 12px; }
.ach-card {
  border: 1px solid var(--glass-border);
  background: var(--glass);
  border-radius: var(--r-md);
  padding: 18px;
  display: flex; flex-direction: column; align-items: center; gap: 8px; text-align: center;
  opacity: 0.45; transition: all 0.3s var(--ease-premium);
}
.ach-card.is-unlocked { opacity: 1; border-color: rgba(255,209,102,0.35); box-shadow: 0 0 22px rgba(255,209,102,0.08); }
.ach-icon { font-size: 28px; color: var(--ink-3); }
.ach-card.is-unlocked .ach-icon { color: var(--gold); filter: drop-shadow(0 0 12px rgba(255,209,102,0.5)); }
.ach-name { font-size: 13px; letter-spacing: 0.08em; }
.ach-desc { font-family: var(--font-mono); font-size: 10px; color: var(--ink-2); line-height: 1.4; }

/* ══════════ TÁCTIL ══════════ */
.touch-bar {
  display: none;
  position: fixed; left: 0; right: 0; bottom: 0; z-index: 15;
  padding: 10px 12px calc(10px + env(safe-area-inset-bottom));
  justify-content: center; gap: 8px;
  background: linear-gradient(180deg, transparent, rgba(4,5,12,0.85));
}
.tbtn {
  flex: 1; max-width: 76px;
  height: 58px;
  border-radius: 14px;
  border: 1px solid var(--glass-border);
  background: rgba(16, 20, 42, 0.75);
  color: var(--ink-1);
  font-size: 21px;
  backdrop-filter: blur(10px);
  transition: background 0.15s;
}
.tbtn:active { background: rgba(70, 240, 255, 0.25); }
.tbtn-drop { border-color: rgba(70,240,255,0.5); color: var(--accent); }
.tbtn-small { font-size: 14px; max-width: 56px; }

/* ══════════ RESPONSIVE ══════════ */
@media (max-width: 900px) {
  .game-layout { gap: 8px; }
  .hud-panel { width: clamp(96px, 22vw, 130px); gap: 8px; }
  .hud-block { padding: 9px; }
  .hud-stats div:nth-child(n+4) { display: none; }
  .hud-rhythm .beat-track { height: 26px; }
}
@media (max-width: 700px) {
  #screen-game { padding-bottom: 86px; }
  .touch-bar { display: flex; }
  .hud-left .hud-block:nth-child(2) { display: none; }
  .result-grid { grid-template-columns: 1fr; }
}
@media (pointer: coarse) and (max-width: 1024px) {
  .touch-bar { display: flex; }
  #screen-game { padding-bottom: 86px; }
}