:root {
  --bg: #0b0504;
  --ink: #fff4ea;
  --muted: #c4a598;
  --dim: #8a6b5f;
  --lava-1: #ffd166;
  --lava-2: #ff8a1f;
  --lava-3: #ff3d00;
  --line: rgba(255, 140, 60, .18);
  --panel: rgba(30, 14, 10, .55);
  --display: "Bungee", "Arial Black", Impact, sans-serif;
  --text: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --lava: linear-gradient(180deg, var(--lava-1), var(--lava-2) 50%, var(--lava-3));
}

* { box-sizing: border-box; }
html, body { margin: 0; min-height: 100%; }
body {
  display: flex;
  flex-direction: column;
  align-items: center;
  min-height: 100dvh;
  background: var(--bg);
  color: var(--ink);
  font: 15px/1.5 var(--text);
  overflow-x: hidden;
}
b { font-weight: 800; }

/* ---------- Fondo ---------- */
.bg { position: fixed; inset: 0; z-index: -1; overflow: hidden; pointer-events: none; }
.glow {
  position: absolute; inset: 0;
  background:
    radial-gradient(ellipse 90% 45% at 50% 112%, rgba(255, 70, 0, .55), transparent 70%),
    radial-gradient(ellipse 50% 35% at 0% 0%, rgba(255, 138, 31, .12), transparent 70%),
    radial-gradient(ellipse 50% 35% at 100% 10%, rgba(255, 61, 0, .10), transparent 70%);
  animation: breathe 7s ease-in-out infinite;
}
@keyframes breathe { 50% { opacity: .75; } }
.cracks {
  position: absolute; left: -10%; right: -10%; bottom: -20%; height: 55%;
  background:
    repeating-linear-gradient(115deg, transparent 0 46px, rgba(255, 120, 20, .10) 46px 48px, transparent 48px 110px),
    repeating-linear-gradient(65deg, transparent 0 70px, rgba(255, 80, 0, .08) 70px 72px, transparent 72px 150px);
  transform: perspective(500px) rotateX(60deg);
  transform-origin: bottom;
  mask-image: linear-gradient(to top, #000 10%, transparent 80%);
  -webkit-mask-image: linear-gradient(to top, #000 10%, transparent 80%);
}
.embers i {
  position: absolute; bottom: -10px;
  width: 4px; height: 4px; border-radius: 50%;
  background: var(--lava-2);
  box-shadow: 0 0 10px 2px rgba(255, 120, 0, .8);
  animation: rise linear infinite;
  opacity: 0;
}
.embers i:nth-child(1)  { left: 6%;  animation-duration: 9s;  animation-delay: 0s; }
.embers i:nth-child(2)  { left: 14%; animation-duration: 12s; animation-delay: 2s; width: 3px; height: 3px; }
.embers i:nth-child(3)  { left: 23%; animation-duration: 10s; animation-delay: 5s; }
.embers i:nth-child(4)  { left: 31%; animation-duration: 14s; animation-delay: 1s; background: var(--lava-1); }
.embers i:nth-child(5)  { left: 42%; animation-duration: 11s; animation-delay: 7s; width: 3px; height: 3px; }
.embers i:nth-child(6)  { left: 51%; animation-duration: 13s; animation-delay: 3s; }
.embers i:nth-child(7)  { left: 60%; animation-duration: 9s;  animation-delay: 6s; background: var(--lava-3); }
.embers i:nth-child(8)  { left: 68%; animation-duration: 12s; animation-delay: 4s; }
.embers i:nth-child(9)  { left: 77%; animation-duration: 10s; animation-delay: 8s; width: 3px; height: 3px; }
.embers i:nth-child(10) { left: 85%; animation-duration: 15s; animation-delay: 2s; background: var(--lava-1); }
.embers i:nth-child(11) { left: 92%; animation-duration: 11s; animation-delay: 5s; }
.embers i:nth-child(12) { left: 97%; animation-duration: 13s; animation-delay: 9s; width: 3px; height: 3px; }
@keyframes rise {
  0%   { transform: translate(0, 0); opacity: 0; }
  10%  { opacity: 1; }
  100% { transform: translate(30px, -95vh); opacity: 0; }
}

/* ---------- Cabecera ---------- */
.hero {
  position: relative;
  width: 100%;
  padding: clamp(18px, 3.5vh, 34px) 16px clamp(10px, 2vh, 18px);
  text-align: center;
}
.by {
  position: absolute; top: 16px; right: clamp(14px, 3vw, 32px);
  display: inline-flex; align-items: center; gap: 6px;
  padding: 7px 13px; border-radius: 99px;
  color: var(--muted); text-decoration: none; font-size: 12.5px;
  border: 1px solid var(--line); background: rgba(20, 8, 5, .6);
  backdrop-filter: blur(6px); -webkit-backdrop-filter: blur(6px);
  transition: color .15s, border-color .15s, background .15s, transform .15s;
}
.by strong { color: var(--ink); font-weight: 800; }
.by:hover { color: var(--ink); border-color: var(--lava-2); background: rgba(255, 138, 31, .12); transform: translateY(-1px); }
.logo {
  position: relative; display: inline-block; margin: 0;
  font: 400 clamp(36px, 6.2vw, 66px)/1 var(--display);
  letter-spacing: .03em; text-transform: uppercase;
}
.logo::after {
  content: ""; position: absolute; left: 10%; right: 10%; bottom: -14px; height: 18px;
  background: radial-gradient(ellipse at center, rgba(255, 90, 0, .55), transparent 70%);
  filter: blur(6px); z-index: -1;
}
.logo-a { color: var(--ink); text-shadow: 0 3px 0 #3a150b, 0 0 24px rgba(255, 120, 40, .25); }
.logo-b, .loader-title b {
  font-weight: 400;
  background: var(--lava);
  -webkit-background-clip: text; background-clip: text; color: transparent;
  filter: drop-shadow(0 3px 0 #5a1a05) drop-shadow(0 0 18px rgba(255, 90, 0, .55));
}
.chip {
  position: relative; top: -.9em; margin-left: 8px;
  padding: 4px 8px; border-radius: 7px;
  font: 800 13px/1 var(--text); letter-spacing: .04em; vertical-align: middle;
  color: #1a0905; background: var(--lava-2);
  box-shadow: 0 4px 14px rgba(255, 100, 0, .45);
  transform: rotate(-6deg); display: inline-block;
}
.tagline {
  display: flex; align-items: center; justify-content: center; gap: 12px; flex-wrap: wrap;
  margin: 16px 0 0;
  font: 800 12px/1 var(--text); letter-spacing: .26em; text-transform: uppercase; color: var(--muted);
}
.tagline i { width: 5px; height: 5px; border-radius: 50%; background: var(--lava-2); box-shadow: 0 0 8px var(--lava-2); }
.tagline span:last-child { color: var(--lava-1); }

/* ---------- Juego ---------- */
.stage {
  width: min(1240px, 94vw, calc((100dvh - 250px) * 16 / 9));
  min-width: 300px;
  margin-top: clamp(8px, 1.5vh, 16px);
}
.frame-wrap {
  position: relative;
  padding: 2px;
  border-radius: 18px;
  background: linear-gradient(120deg, var(--lava-3), var(--lava-1), var(--lava-2), var(--lava-3));
  background-size: 300% 300%;
  animation: flow 8s linear infinite;
  box-shadow: 0 30px 80px rgba(0, 0, 0, .7), 0 0 90px rgba(255, 77, 0, .25);
}
@keyframes flow { to { background-position: 300% 0; } }
.frame {
  position: relative;
  aspect-ratio: 16 / 9;
  border-radius: 16px;
  overflow: hidden;
  background: #000;
}
#unity-canvas { display: block; width: 100%; height: 100%; background: #000; outline: none; }

/* ---------- Carga ---------- */
.loader {
  position: absolute; inset: 0;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  gap: 16px; padding: 24px;
  background:
    radial-gradient(ellipse 80% 55% at 50% 120%, rgba(255, 77, 0, .6), transparent 70%),
    radial-gradient(circle at 50% 35%, rgba(255, 138, 31, .12), transparent 45%),
    #110604;
  transition: opacity .6s ease, transform .6s ease;
}
.loader.done { opacity: 0; transform: scale(1.03); pointer-events: none; }
.loader-drop { width: clamp(46px, 7vw, 72px); animation: bob 2.2s ease-in-out infinite; filter: drop-shadow(0 0 22px rgba(255, 90, 0, .8)); }
.loader-drop svg { display: block; width: 100%; }
@keyframes bob { 50% { transform: translateY(-8px) scale(1.04); } }
.loader-title { margin: 0; font: 400 clamp(30px, 6vw, 64px)/1 var(--display); letter-spacing: .02em; }
.bar {
  width: min(440px, 80%); height: 12px; margin-top: 6px;
  border-radius: 99px; overflow: hidden;
  background: rgba(255, 255, 255, .07);
  border: 1px solid var(--line);
}
.bar-fill {
  position: relative; width: 0; height: 100%; border-radius: inherit;
  background: linear-gradient(90deg, var(--lava-3), var(--lava-2), var(--lava-1));
  box-shadow: 0 0 18px rgba(255, 120, 0, .9);
  transition: width .3s ease;
  overflow: hidden;
}
.bar-fill::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, .45), transparent);
  transform: translateX(-100%);
  animation: shine 1.4s ease-in-out infinite;
}
@keyframes shine { to { transform: translateX(100%); } }
.loader-info {
  width: min(440px, 80%);
  display: flex; justify-content: space-between;
  margin-top: -6px; font-size: 13px; color: var(--muted);
}
#loader-pct { color: var(--ink); font-weight: 800; font-variant-numeric: tabular-nums; }
.loader-tip {
  margin: 10px 0 0; max-width: 440px; text-align: center;
  font-size: 13px; color: var(--muted);
}
.loader-tip span {
  display: inline-block; margin-right: 4px; padding: 2px 8px; border-radius: 99px;
  font: 800 10px/1.6 var(--text); letter-spacing: .12em; text-transform: uppercase;
  color: var(--lava-1); border: 1px solid var(--line);
}
.loader-tip em { font-style: normal; }

/* ---------- Avisos ---------- */
.warning { position: absolute; left: 12px; right: 12px; top: 12px; display: grid; gap: 8px; pointer-events: none; }
.warning-msg { padding: 10px 14px; border-radius: 10px; font-size: 13px; background: rgba(20, 8, 5, .92); border: 1px solid var(--line); }
.warning-msg.warning { border-color: var(--lava-1); }
.warning-msg.error { border-color: var(--lava-3); background: rgba(60, 8, 0, .95); }

/* ---------- Controles ---------- */
.toolbar {
  display: flex; align-items: center; justify-content: space-between; gap: 14px; flex-wrap: wrap;
  margin-top: 16px; padding: 12px 14px;
  border: 1px solid var(--line); border-radius: 14px;
  background: var(--panel);
  backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px);
}
.keys { display: flex; flex-wrap: wrap; gap: 8px 22px; margin: 0; padding: 0; list-style: none; color: var(--muted); font-size: 13px; }
.keys li { display: flex; align-items: center; gap: 8px; }
.keyset { display: inline-flex; gap: 3px; }
kbd {
  min-width: 26px; padding: 3px 7px;
  font: 800 11px/1.5 var(--text); text-align: center; color: var(--ink);
  background: linear-gradient(180deg, rgba(255, 255, 255, .1), rgba(255, 255, 255, .03));
  border: 1px solid rgba(255, 160, 90, .28); border-bottom-width: 3px; border-radius: 6px;
}
kbd.wide { min-width: 70px; }
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 10px 18px; border: 0; border-radius: 10px;
  font: 800 13px/1 var(--text); color: #1a0905;
  background: linear-gradient(180deg, var(--lava-1), var(--lava-2));
  box-shadow: 0 8px 24px rgba(255, 100, 0, .35), inset 0 1px 0 rgba(255, 255, 255, .5);
  cursor: pointer;
  transition: transform .15s, box-shadow .15s, opacity .15s;
}
.btn:hover:not(:disabled) { transform: translateY(-2px); box-shadow: 0 12px 30px rgba(255, 100, 0, .5), inset 0 1px 0 rgba(255, 255, 255, .5); }
.btn:disabled { opacity: .4; cursor: default; }

/* ---------- Tarjetas ---------- */
.cards {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 14px;
  margin-top: 16px;
}
.card {
  position: relative; padding: 18px 18px 16px;
  border: 1px solid var(--line); border-radius: 14px;
  background: var(--panel);
  backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px);
  transition: transform .2s, border-color .2s, box-shadow .2s;
  overflow: hidden;
}
.card::before {
  content: ""; position: absolute; left: 0; right: 0; top: 0; height: 2px;
  background: linear-gradient(90deg, transparent, var(--lava-2), transparent);
  opacity: .6;
}
.card:hover { box-shadow: 0 14px 34px rgba(0, 0, 0, .45), 0 0 30px rgba(255, 90, 0, .12); }
.card:hover { transform: translateY(-3px); border-color: rgba(255, 138, 31, .5); }
.ico {
  display: grid; place-items: center; width: 40px; height: 40px; margin-bottom: 10px;
  font-size: 20px; border-radius: 10px;
  background: linear-gradient(180deg, rgba(255, 209, 102, .18), rgba(255, 61, 0, .12));
  border: 1px solid var(--line);
}
.card h3 { margin: 0 0 4px; font: 400 15px/1.3 var(--display); letter-spacing: .02em; }
.card p { margin: 0; color: var(--muted); font-size: 13.5px; }
.card p b { color: var(--ink); }

/* ---------- Pie ---------- */
.foot {
  width: 100%; margin-top: auto; padding: 36px 16px 26px;
  display: flex; flex-direction: column; align-items: center; gap: 8px;
}
.foot-brand {
  display: inline-flex; flex-direction: column; align-items: center; gap: 2px;
  padding: 12px 26px; border-radius: 14px;
  text-decoration: none;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, .02);
  transition: border-color .2s, background .2s, transform .2s;
}
.foot-brand:hover { border-color: var(--lava-2); background: rgba(255, 138, 31, .08); transform: translateY(-2px); }
.foot-label { font: 600 11px/1 var(--text); letter-spacing: .22em; text-transform: uppercase; color: var(--dim); }
.foot-name {
  font: 400 22px/1.2 var(--display); letter-spacing: .03em;
  background: var(--lava); -webkit-background-clip: text; background-clip: text; color: transparent;
}
.foot-meta { margin: 4px 0 0; font-size: 12px; color: var(--dim); }

/* ---------- Móvil ---------- */
@media (max-width: 720px) {
  .by { position: static; margin-bottom: 14px; }
  .tagline { gap: 8px; letter-spacing: .16em; font-size: 11px; }
}
body.mobile .keys, body.mobile .cards, body.mobile .tagline { display: none; }
body.mobile .hero { padding: 12px 12px 8px; }
body.mobile .logo { font-size: 30px; }
body.mobile .stage { width: 100vw; min-width: 0; margin-top: 0; }
body.mobile .frame-wrap { border-radius: 0; padding: 0; }
body.mobile .frame { border-radius: 0; aspect-ratio: auto; height: calc(100dvh - 190px); }
body.mobile .toolbar { justify-content: center; margin: 12px; }

@media (prefers-reduced-motion: reduce) {
  .glow, .embers i, .frame-wrap, .loader-drop, .bar-fill::after { animation: none; }
}