/* Landing de Boxy (PER-44): escenario cinematográfico en WebGPU y secciones oscuras. */
:root {
  --void: #07070c;
  --night: #0d0d16;
  --panel: #13131f;
  --line: rgba(169, 155, 255, 0.18);
  --text: #f4f3fb;
  --soft: #b9b7cc;
  --muted: #8c8aa3;
  --indigo: #5a4cf0;
  --lavender: #b7aaff;
  --mint: #7ef2bd;
  --mint-deep: #5fe3a8;
  --display: "Inter Tight", "Helvetica Neue", Helvetica, Arial, system-ui, sans-serif;
  --sans: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --mono: ui-monospace, "SFMono-Regular", Menlo, Consolas, monospace;
  color-scheme: dark;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; background: var(--void); }
body.lp { margin: 0; background: var(--void); color: var(--text); font-family: var(--sans); font-size: 16px; line-height: 1.5; -webkit-font-smoothing: antialiased; }
a { color: inherit; }
:focus-visible { outline: 2px solid var(--mint); outline-offset: 3px; border-radius: 8px; }

.skip { position: absolute; left: -9999px; top: 8px; background: var(--text); color: var(--void); padding: 8px 12px; border-radius: 8px; z-index: 20; }
.skip:focus { left: 8px; }

/* Marca: un orbe chico, el mismo material que el escenario. */
.brand-mark { width: 14px; height: 14px; border-radius: 50%; display: inline-block; background: radial-gradient(circle at 32% 28%, #ffffff 0, #d9d2ff 18%, #8f7dff 52%, #3a2fb8 100%); box-shadow: 0 0 12px rgba(126, 242, 189, 0.45), inset -2px -2px 4px rgba(126, 242, 189, 0.5); }

/* Navegación sobre el escenario */
.nav { position: absolute; top: 0; left: 0; right: 0; z-index: 10; display: flex; justify-content: space-between; align-items: center; gap: 16px; max-width: 1280px; margin: 0 auto; padding: 24px 48px; }
.brand { display: inline-flex; align-items: center; gap: 10px; font-family: var(--display); font-weight: 800; font-size: 19px; text-decoration: none; letter-spacing: -0.02em; }
.nav-links { display: flex; align-items: center; gap: 26px; font-size: 15px; font-weight: 500; color: var(--soft); }
.nav-links a:not(.btn) { text-decoration: none; min-height: 44px; display: inline-flex; align-items: center; transition: color 160ms ease; }
.nav-links a:not(.btn):hover { color: var(--text); }

/* Botones */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; min-height: 50px; padding: 0 24px; border-radius: 999px; font-weight: 650; font-size: 16px; text-decoration: none; border: 1px solid transparent; transition: transform 200ms ease, background-color 200ms ease, box-shadow 200ms ease, border-color 200ms ease; }
.btn-sm { min-height: 40px; padding: 0 18px; font-size: 14px; }
.btn-mint { background: var(--mint); color: #06140e; box-shadow: 0 0 0 1px rgba(126, 242, 189, 0.4), 0 10px 30px rgba(126, 242, 189, 0.18); }
.btn-mint:hover { background: #9af7cd; transform: translateY(-1px); box-shadow: 0 0 0 1px rgba(126, 242, 189, 0.6), 0 14px 40px rgba(126, 242, 189, 0.3); }
.btn-glass { color: var(--text); background: rgba(255, 255, 255, 0.06); border-color: rgba(255, 255, 255, 0.16); backdrop-filter: blur(10px); }
.btn-glass:hover { background: rgba(255, 255, 255, 0.12); border-color: rgba(255, 255, 255, 0.3); }
.arrow { display: inline-block; transition: transform 200ms ease; }
.btn:hover .arrow { transform: translateX(4px); }

/* Escenario: el canvas ocupa toda la pantalla y el texto va encima. */
.stage { position: relative; min-height: 100vh; min-height: 100svh; overflow: hidden; background: var(--void); display: flex; align-items: center; isolation: isolate; }
.stage-canvas { position: absolute; inset: 0; width: 100%; height: 100%; display: block; z-index: -1; opacity: 0; transition: opacity 1200ms ease; cursor: crosshair; }
.stage.gpu-on .stage-canvas { opacity: 1; }
.stage-fallback { position: absolute; inset: 0; z-index: -2; background: radial-gradient(60% 70% at 72% 50%, rgba(90, 76, 240, 0.28), transparent 70%), radial-gradient(40% 40% at 80% 60%, rgba(126, 242, 189, 0.08), transparent 70%), var(--void); }
.orb { position: absolute; left: 72%; top: 50%; width: min(44vw, 560px); aspect-ratio: 1; transform: translate(-50%, -50%); border-radius: 50%; background: radial-gradient(circle at 30% 26%, rgba(255, 255, 255, 0.95) 0, rgba(217, 210, 255, 0.7) 8%, rgba(143, 125, 255, 0.55) 30%, rgba(58, 47, 184, 0.65) 62%, rgba(14, 10, 40, 0.9) 100%); box-shadow: 0 0 120px rgba(90, 76, 240, 0.45), inset -30px -40px 80px rgba(126, 242, 189, 0.25); }
.stage.gpu-on .stage-fallback { opacity: 0; transition: opacity 1200ms ease; }
.stage::after { content: ""; position: absolute; inset: auto 0 0 0; height: 160px; background: linear-gradient(to bottom, transparent, var(--void)); z-index: -1; pointer-events: none; }

.hero-copy { width: 100%; max-width: 1280px; margin: 0 auto; padding: 120px 48px 96px; }
.hero-copy > * { max-width: 620px; }
.hero-kicker { font-family: var(--mono); font-size: 12px; letter-spacing: 0.22em; text-transform: uppercase; color: var(--mint); margin: 0 0 22px; }
.hero-title { font-family: var(--display); font-weight: 800; font-size: clamp(48px, 7vw, 96px); line-height: 0.95; letter-spacing: -0.05em; margin: 0; text-wrap: balance; }
.hero-title .accent { background: linear-gradient(100deg, var(--lavender) 0%, #d8d0ff 40%, var(--mint) 100%); -webkit-background-clip: text; background-clip: text; color: transparent; }
.hero-lede { font-size: 19px; color: var(--soft); max-width: 31rem; margin: 26px 0 36px; }
.hero-actions { display: flex; gap: 12px; flex-wrap: wrap; }

.scroll-cue { position: absolute; left: 50%; bottom: 28px; width: 26px; height: 42px; margin-left: -13px; border: 1.5px solid rgba(255, 255, 255, 0.35); border-radius: 14px; }
.scroll-cue span { position: absolute; left: 50%; top: 8px; width: 4px; height: 8px; margin-left: -2px; border-radius: 2px; background: var(--text); }

@media (prefers-reduced-motion: no-preference) {
  .hero-copy > * { animation: rise 1100ms cubic-bezier(0.16, 1, 0.3, 1) both; }
  .hero-copy > :nth-child(2) { animation-delay: 120ms; }
  .hero-copy > :nth-child(3) { animation-delay: 240ms; }
  .hero-copy > :nth-child(4) { animation-delay: 360ms; }
  .scroll-cue span { animation: cue 1.8s ease-in-out infinite; }
  .orb { animation: breathe 7s ease-in-out infinite; }
  .js .reveal { opacity: 0; transform: translateY(24px); transition: opacity 900ms ease, transform 900ms cubic-bezier(0.16, 1, 0.3, 1); }
  .js .reveal.in { opacity: 1; transform: none; }
  .step:nth-child(2) { transition-delay: 110ms; }
  .step:nth-child(3) { transition-delay: 220ms; }
}
@keyframes rise { from { opacity: 0; transform: translateY(26px); filter: blur(6px); } to { opacity: 1; transform: none; filter: none; } }
@keyframes cue { 0%, 100% { transform: translateY(0); opacity: 1; } 60% { transform: translateY(12px); opacity: 0; } }
@keyframes breathe { 0%, 100% { transform: translate(-50%, -50%) scale(1); } 50% { transform: translate(-50%, -52%) scale(1.03); } }

/* Pasos */
.steps { background: var(--void); }
.steps-inner { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 2fr); gap: 56px; max-width: 1280px; margin: 0 auto; padding: 120px 48px; }
.kicker { font-family: var(--mono); font-size: 12px; letter-spacing: 0.18em; text-transform: uppercase; margin: 0 0 14px; }
.kicker-mint { color: var(--mint); }
.kicker-lavender { color: var(--lavender); }
.steps h2 { font-family: var(--display); font-weight: 800; font-size: clamp(34px, 4vw, 52px); line-height: 1; letter-spacing: -0.04em; margin: 0; }
.steps-list { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; }
.step { position: relative; padding: 28px 24px 30px; border-radius: 20px; background: linear-gradient(180deg, rgba(255, 255, 255, 0.05), rgba(255, 255, 255, 0.015)); border: 1px solid var(--line); }
.step::before { content: ""; position: absolute; left: 24px; right: 24px; top: -1px; height: 1px; background: linear-gradient(90deg, transparent, var(--mint), transparent); opacity: 0.7; }
.step-no { display: block; font-family: var(--mono); font-size: 13px; color: var(--mint); letter-spacing: 0.1em; margin-bottom: 40px; }
.step h3 { font-family: var(--display); font-size: 21px; letter-spacing: -0.02em; margin: 0 0 10px; line-height: 1.2; }
.step p { margin: 0; color: var(--soft); font-size: 15px; }

/* Nota técnica */
.note { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 2fr); gap: 56px; max-width: 1280px; margin: 0 auto; padding: 24px 48px 72px; }
.note .kicker { margin: 0; padding-top: 2px; }
.note-text { margin: 0; font-family: var(--mono); font-size: 14px; color: var(--muted); max-width: 46rem; }

/* CTA */
.cta { position: relative; overflow: hidden; max-width: 1184px; margin: 0 auto 96px; border-radius: 32px; padding: 80px 56px; display: flex; flex-direction: column; align-items: flex-start; gap: 20px; background: radial-gradient(70% 120% at 85% 0%, rgba(90, 76, 240, 0.55), transparent 60%), radial-gradient(60% 100% at 100% 100%, rgba(126, 242, 189, 0.22), transparent 60%), var(--panel); border: 1px solid var(--line); }
.cta h2 { font-family: var(--display); font-weight: 800; font-size: clamp(36px, 4.6vw, 64px); line-height: 0.98; letter-spacing: -0.045em; margin: 0; text-wrap: balance; }
.cta p { margin: 0 0 10px; font-size: 17px; color: var(--soft); }
.cta p a { color: var(--text); font-weight: 600; text-underline-offset: 3px; }

/* Pie */
.foot { display: flex; justify-content: space-between; align-items: center; gap: 16px; flex-wrap: wrap; max-width: 1280px; margin: 0 auto; padding: 28px 48px 44px; border-top: 1px solid var(--line); font-size: 14px; color: var(--muted); }
.foot-brand { display: inline-flex; align-items: center; gap: 10px; font-weight: 700; color: var(--text); }
.foot-version { font-family: var(--mono); font-weight: 400; color: var(--muted); font-size: 12px; }
.foot-links { display: flex; gap: 22px; flex-wrap: wrap; }
.foot-links a { min-height: 44px; display: inline-flex; align-items: center; text-decoration: none; }
.foot-links a:hover { color: var(--text); }

@media (max-width: 860px) {
  .nav { padding: 16px 20px; }
  .nav-links { gap: 14px; }
  .nav-links a[href="#como-funciona"] { display: none; }
  .stage { align-items: flex-end; }
  .hero-copy { padding: 0 20px 96px; }
  .hero-title { font-size: clamp(42px, 12vw, 64px); }
  .hero-lede { font-size: 17px; }
  .orb { left: 50%; top: 30%; width: 78vw; }
  .stage-fallback { background: radial-gradient(80% 50% at 50% 30%, rgba(90, 76, 240, 0.3), transparent 70%), var(--void); }
  .steps-inner, .note { grid-template-columns: 1fr; gap: 28px; padding: 72px 20px; }
  .note { padding: 8px 20px 48px; gap: 10px; }
  .steps-list { grid-template-columns: 1fr; }
  .cta { margin: 0 16px 56px; padding: 44px 24px; border-radius: 24px; }
  .foot { padding: 24px 20px 32px; }
}