/* ===== Xami · estilo base ===== */
:root{
  --bg:#0a0e1a; --bg2:#0d1424; --panel:#111a2e; --panel2:#16213d;
  --ink:#eaf0fb; --muted:#8da2c0; --line:#1e2c4a;
  --accent:#4db8ff; --accent2:#7c5cff; --ok:#37d39b; --warn:#ffb454;
  --grad:linear-gradient(135deg,#4db8ff,#7c5cff);
  --shadow:0 20px 60px rgba(0,0,0,.45);
  --r:18px; --maxw:1180px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:'Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,sans-serif;
  background:var(--bg); color:var(--ink); line-height:1.6;
  overflow-x:hidden;
}
a{color:inherit;text-decoration:none}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 28px}

/* ===== NAV ===== */
.nav{
  position:fixed;top:0;left:0;right:0;z-index:100;
  display:flex;align-items:center;justify-content:space-between;
  padding:18px 32px; background:rgba(10,14,26,.72);
  backdrop-filter:blur(14px); border-bottom:1px solid var(--line);
}
.brand{font-weight:800;font-size:22px;letter-spacing:1px;display:flex;align-items:center;gap:2px}
.brand span{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.brand small{font-size:11px;color:var(--muted);font-weight:500;margin-left:8px;letter-spacing:2px}
.nav-links{display:flex;gap:26px;align-items:center}
.nav-links a{color:var(--muted);font-size:14px;font-weight:500;transition:.2s}
.nav-links a:hover{color:var(--ink)}
.btn{
  display:inline-flex;align-items:center;gap:8px;
  padding:11px 22px;border-radius:12px;font-weight:600;font-size:14px;
  background:var(--grad);color:#fff;border:none;cursor:pointer;transition:.25s;
  box-shadow:0 8px 24px rgba(77,184,255,.25);
}
.btn:hover{transform:translateY(-2px);box-shadow:0 12px 32px rgba(124,92,255,.35)}
.btn.ghost{background:transparent;border:1px solid var(--line);color:var(--ink);box-shadow:none}
.btn.ghost:hover{border-color:var(--accent);background:rgba(77,184,255,.08)}

/* ===== DECK / slides ===== */
.deck{padding-top:78px}
.slide{
  min-height:100vh;display:flex;align-items:center;
  padding:90px 0; position:relative; border-bottom:1px solid rgba(30,44,74,.4);
}
.slide-inner{width:100%}
.eyebrow{
  display:inline-block;font-size:12px;letter-spacing:3px;text-transform:uppercase;
  color:var(--accent);font-weight:700;margin-bottom:18px;
  padding:6px 14px;border:1px solid var(--line);border-radius:50px;background:rgba(77,184,255,.06);
}
h1{font-size:clamp(34px,6vw,68px);line-height:1.05;font-weight:800;letter-spacing:-1px}
h1 .hl{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
h2{font-size:clamp(28px,4vw,46px);font-weight:800;letter-spacing:-.5px;margin-bottom:18px}
.lead{font-size:clamp(17px,2vw,21px);color:var(--muted);max-width:680px;margin-top:22px}
.section-tag{font-size:13px;color:var(--accent2);font-weight:700;letter-spacing:2px;text-transform:uppercase;margin-bottom:12px}

/* ===== HERO ===== */
.hero{background:radial-gradient(1200px 600px at 70% -10%,rgba(124,92,255,.18),transparent),radial-gradient(900px 500px at 10% 20%,rgba(77,184,255,.12),transparent)}
.hero-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:50px;align-items:center}
.hero-cta{display:flex;gap:14px;margin-top:34px;flex-wrap:wrap}
.trust{display:flex;gap:28px;margin-top:40px;flex-wrap:wrap}
.trust div{font-size:13px;color:var(--muted)}
.trust b{display:block;font-size:26px;color:var(--ink);font-weight:800;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}

/* device mockup */
.device{
  position:relative;background:linear-gradient(160deg,var(--panel2),var(--panel));
  border:1px solid var(--line);border-radius:24px;padding:28px;box-shadow:var(--shadow);
}
.chip{
  aspect-ratio:1.6;border-radius:16px;background:
    linear-gradient(135deg,#0c1530,#0a1120),
    repeating-linear-gradient(90deg,transparent,transparent 18px,rgba(77,184,255,.04) 18px,rgba(77,184,255,.04) 19px);
  border:1px solid var(--line);display:flex;align-items:center;justify-content:center;position:relative;overflow:hidden;
}
.chip::before{content:"";position:absolute;inset:0;background:radial-gradient(400px 200px at 50% 0,rgba(77,184,255,.15),transparent)}
.chip .core{width:64px;height:64px;border-radius:14px;background:var(--grad);display:flex;align-items:center;justify-content:center;font-weight:800;font-size:24px;color:#fff;box-shadow:0 0 40px rgba(77,184,255,.5);z-index:1}
.chip .pin{position:absolute;width:7px;height:20px;background:var(--line);border-radius:3px}
.dev-label{display:flex;justify-content:space-between;margin-top:18px;font-size:12px;color:var(--muted);font-family:monospace}
.dev-label b{color:var(--ok)}

/* ===== CARDS ===== */
.grid{display:grid;gap:22px;margin-top:46px}
.grid.c2{grid-template-columns:repeat(2,1fr)}
.grid.c3{grid-template-columns:repeat(3,1fr)}
.grid.c4{grid-template-columns:repeat(4,1fr)}
.card{
  background:linear-gradient(160deg,var(--panel),var(--bg2));
  border:1px solid var(--line);border-radius:var(--r);padding:28px;transition:.28s;position:relative;overflow:hidden;
}
.card:hover{transform:translateY(-4px);border-color:rgba(77,184,255,.4)}
.card .ico{width:48px;height:48px;border-radius:12px;background:rgba(77,184,255,.1);display:flex;align-items:center;justify-content:center;font-size:24px;margin-bottom:16px}
.card h3{font-size:19px;font-weight:700;margin-bottom:8px}
.card p{color:var(--muted);font-size:15px}
.card .num{font-size:42px;font-weight:800;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;line-height:1}

/* problema / impacto */
.stat-row{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin-top:40px}
.stat{text-align:center;padding:34px 20px;background:linear-gradient(160deg,var(--panel),var(--bg2));border:1px solid var(--line);border-radius:var(--r)}
.stat .big{font-size:clamp(36px,5vw,56px);font-weight:800;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.stat .cap{color:var(--muted);font-size:14px;margin-top:8px}

/* ===== FLOW / simulación ===== */
.sim{background:linear-gradient(160deg,var(--panel),var(--bg2));border:1px solid var(--line);border-radius:var(--r);padding:36px;margin-top:40px}
.sim-stage{display:grid;grid-template-columns:1fr auto 1fr;gap:24px;align-items:center}
.node{background:var(--bg2);border:1px solid var(--line);border-radius:14px;padding:24px;text-align:center;position:relative;transition:.3s}
.node.active{border-color:var(--accent);box-shadow:0 0 30px rgba(77,184,255,.25)}
.node .tit{font-weight:700;font-size:16px;margin-bottom:6px}
.node .sub{font-size:13px;color:var(--muted);font-family:monospace}
.node .emoji{font-size:32px;margin-bottom:10px}
.arrow{font-size:24px;color:var(--accent);position:relative}
.arrow .pkt{position:absolute;top:50%;left:0;transform:translateY(-50%);font-size:14px;opacity:0;white-space:nowrap;color:var(--ok)}
.sim-log{margin-top:26px;background:#070b14;border:1px solid var(--line);border-radius:12px;padding:18px;font-family:monospace;font-size:13px;min-height:120px;max-height:200px;overflow-y:auto}
.sim-log div{padding:3px 0;color:var(--muted);opacity:0;animation:fadein .4s forwards}
.sim-log .ok{color:var(--ok)} .sim-log .ac{color:var(--accent)} .sim-log .wn{color:var(--warn)}
@keyframes fadein{to{opacity:1}}
.sim-controls{display:flex;gap:14px;margin-top:24px;justify-content:center;flex-wrap:wrap}

/* layers / arquitectura */
.layers{display:flex;flex-direction:column;gap:16px;margin-top:40px}
.layer{display:grid;grid-template-columns:160px 1fr;gap:24px;align-items:center;background:linear-gradient(160deg,var(--panel),var(--bg2));border:1px solid var(--line);border-radius:14px;padding:22px 26px}
.layer .ltag{font-weight:800;font-size:15px;color:var(--accent)}
.layer p{color:var(--muted);font-size:15px}

/* casos de uso */
.use{background:linear-gradient(160deg,var(--panel),var(--bg2));border:1px solid var(--line);border-radius:var(--r);padding:30px;transition:.28s}
.use:hover{transform:translateY(-4px);border-color:rgba(124,92,255,.4)}
.use .ico{font-size:30px;margin-bottom:14px}
.use h3{font-size:18px;margin-bottom:8px}
.use p{color:var(--muted);font-size:14px}

/* contacto / CTA final */
.cta-final{text-align:center;background:radial-gradient(800px 400px at 50% 0,rgba(124,92,255,.18),transparent)}
.cta-box{background:linear-gradient(160deg,var(--panel2),var(--panel));border:1px solid var(--line);border-radius:24px;padding:60px 40px;margin-top:30px;box-shadow:var(--shadow)}

/* footer */
.footer{padding:50px 0 40px;border-top:1px solid var(--line);color:var(--muted);font-size:14px}
.footer-grid{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:20px}

/* dots nav lateral */
.dots{position:fixed;right:26px;top:50%;transform:translateY(-50%);display:flex;flex-direction:column;gap:14px;z-index:90}
.dots a{width:11px;height:11px;border-radius:50%;background:var(--line);transition:.25s;border:2px solid transparent}
.dots a:hover,.dots a.active{background:var(--accent);box-shadow:0 0 12px var(--accent)}

/* reveal on scroll */
.reveal{opacity:0;transform:translateY(30px);transition:.7s cubic-bezier(.2,.7,.2,1)}
.reveal.in{opacity:1;transform:none}

/* responsive */
@media(max-width:900px){
  .hero-grid{grid-template-columns:1fr;gap:36px}
  .grid.c3,.grid.c4{grid-template-columns:1fr 1fr}
  .stat-row{grid-template-columns:1fr}
  .sim-stage{grid-template-columns:1fr;gap:14px}
  .arrow{transform:rotate(90deg)}
  .layer{grid-template-columns:1fr;gap:8px}
  .nav-links{display:none}
  .dots{display:none}
}
@media(max-width:560px){.grid.c2,.grid.c3,.grid.c4{grid-template-columns:1fr}}