:root{
  --bg: #0b0b0f;
  --surface: #12131a;
  --card: #141923;
  --text: #e8eaee;
  --muted:#a6adbb;
  --accent: #0ea5b3; /* teal-500 */
  --blue:#1e3a8a;
  --radius:14px;
  --radius-card:12px;
}
*{box-sizing:border-box}
html,body{height:100%}
body{margin:0;font-family: Inter, ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto; background: #0a0b10; color:var(--text); line-height:1.5}
a{color:inherit;text-decoration:none}
.container{max-width:1100px;margin:0 auto;padding:0 20px}
/* Skip link */
 .skip-link{position:absolute;left:-9999px;top:auto;width:1px;height:1px;overflow:hidden}
 .skip-link:focus{left:12px;top:12px;z-index:1000;width:auto;height:auto;padding:8px 12px;background:#111;border-radius:6px}

/* Header */
.site-header{position:sticky;top:0;background:rgba(8,8,12,.92);backdrop-filter:saturate(1.2) blur(6px);border-bottom:1px solid rgba(255,255,255,.05);z-index:50}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:68px}
.logo{display:flex;align-items:center}
.nav{display:flex;gap:22px}
.nav a{color:#e6e6e6;font-weight:600;font-size:14px;letter-spacing:.2px}
@media (max-width: 800px){
  .nav{display:none}
}

/* Hero */
.hero{padding:64px 0 40px;background: radial-gradient( circle at 20% -10%, rgba(14,165,233,.15), transparent 40%), rgba(2,6,23,.9)}
.hero-grid{display:grid;grid-template-columns: 1.05fr .95fr;gap:40px;align-items:center}
.h1{font-family:inherit}
.hero-copy h1{font-size: clamp(28px, 4.5vw, 46px); line-height:1.04; margin:0 0 12px;font-weight:800; letter-spacing:.2px}
.tagline{font-size: clamp(14px, 1.8vw, 18px); color: #d6d9e6; max-width: 560px}
.cta-row{display:flex;gap:14px;margin-top:18px;flex-wrap:wrap}
.btn{padding:12px 18px;border-radius:999px;border:1px solid rgba(255,255,255,.2);font-weight:700;cursor:pointer}
.btn.primary{background: #0a2540; border-color:#0a2540; color:white; box-shadow: inset 0 0 0 0 rgba(0,0,0,0); transition: transform .2s ease}
.btn.primary:hover{transform: translateY(-1px);}
.btn.ghost{background: transparent;border-color: rgba(255,255,255,.4);color:#eaf5ff}

.hero-demo{position:relative;min-height:280px}
.demo-card{background: rgba(15,18,28,.85); border:1px solid rgba(255,255,255,.08); border-radius:12px;padding:16px;box-shadow: 0 8px 20px rgba(0,0,0,.25)}
.panel-title{font-weight:700;margin-bottom:8px;color:#eaf2ff}
.demo-stage{background:#0b1220;border-radius:10px;border:1px dashed rgba(255,255,255,.15);padding:12px;margin:6px 0 12px}
.demo-row{display:flex;justify-content:space-between;gap:12px;padding:6px 0;border-bottom:1px solid rgba(255,255,255,.06)}
.demo-row:last-child{border-bottom:0}
.demo-row .dot{color:#a9b4c9;font-weight:600}
.demo-row .arrow{opacity:.6}
.demo-row .result{font-family: ui-monospace, SFMono-Regular, Menlo, Consolas; color:#e6f0ff}
#shuffleDemo{margin-top:6px}

@media (max-width: 980px){
  .hero-grid{grid-template-columns:1fr}
  .hero-demo{order:-1}
}

/* Benefits */
.beneficios{padding:60px 0;background:#0e0f14;border-top:1px solid rgba(255,255,255,.04)}
.beneficios h2{font-size:28px;margin-bottom:20px}
.benefits-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.card{background: rgba(18,22,33,.8);border:1px solid rgba(255,255,255,.08);border-radius:12px;padding:18px}
.card h3{margin:6px 0 8px;font-size:18px}
.card p{color:#d5dbe9;font-size:14px;margin:0}

/* Live demo */
.live-demo{padding:40px 0;background:#0b0f15}
.demo-panel{background:#0e141d;border:1px solid rgba(255,255,255,.08);border-radius:12px;padding:18px;display:flex;flex-direction:column;gap:12px}
.input-text{width:100%;padding:12px;border-radius:8px;border:1px solid rgba(255,255,255,.25);background:#0b0f15;color:#eaf2ff;resize:vertical}
.demo-actions{display:flex;gap:10px;align-items:center}
.demo-output{min-height:60px;border:1px solid rgba(255,255,255,.15);border-radius:8px;padding:12px;background:#0b111b;color:#dbeafe}

/* Privacy */
.privacy{padding:60px 0;background:#0e1117}
.privacy-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:12px}
.policy{background:#11151d;border:1px solid rgba(255,255,255,.08);border-radius:12px;padding:16px}
.policy .icon{font-size:22px;margin-bottom:6px}
.policy h3{margin:6px 0 6px}

/* CTA section */
.cta-block{padding:40px 0;background:#0a0d13;border-top:1px solid rgba(255,255,255,.05)}
.sub{color:#d7dee8;margin:8px 0 18px}
.lead-form{display:flex;gap:10px;flex-wrap:wrap}
.input{padding:12px 14px;border-radius:8px;border:1px solid rgba(255,255,255,.25);min-width:240px;background:#0a0e14;color:#eaf2ff}
.note{font-size:12px;color:#aab4c8;margin-top:8px}

/* Footer */
.site-footer{border-top:1px solid rgba(255,255,255,.08);background:#0a0b10;margin-top:40px}
.footer-inner{display:flex;justify-content:space-between;align-items:center;padding:16px 0}
.brand-mini{display:flex;gap:8px;align-items:center;font-weight:700}
.brand-dot{width:8px;height:8px;border-radius:2px;background:var(--accent);display:inline-block}

@media (max-width:700px){
  .privacy-grid{grid-template-columns:1fr}
  .benefits-grid{grid-template-columns:1fr}
  .footer-inner{flex-direction:column;gap:8px;align-items:flex-start}
}