/* style.css — AVStudio Info • fondo 3D + tarjetas brillantes */
:root{
  --bg:#020617;
  --fg:#e6edf3;
  --mut:#9aa4b2;
  --a:#22d3ee;
  --b:#8b5cf6;
  --glass:rgba(15,23,42,.72);
  --glass-soft:rgba(15,23,42,.88);
  --bd:rgba(148,163,184,.4);
  --shadow-deep:0 26px 80px rgba(15,23,42,.95);
  --radius-lg:18px;
}
*{box-sizing:border-box;margin:0;padding:0}
html,body{height:100%}
body{
  margin:0;
  min-height:100%;
  background:radial-gradient(1200px 700px at 10% 0%,#0f172a,#020617 60%);
  color:var(--fg);
  font:15px/1.6 system-ui,-apple-system,Segoe UI,Roboto,Ubuntu,sans-serif;
  position:relative;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}

/* Lienzo del fondo 3D */
.bg-3d{
  position:fixed;
  inset:0;
  z-index:-2;
  pointer-events:none;
  overflow:hidden;
}
#bg3d{
  width:100%;
  height:100%;
  display:block;
}
.bg-3d::after{
  content:"";
  position:absolute;
  inset:-40px;
  background:
    radial-gradient(circle at 15% 0,rgba(56,189,248,.22),transparent 60%),
    radial-gradient(circle at 85% 100%,rgba(129,140,248,.26),transparent 55%);
  mix-blend-mode:screen;
  opacity:.9;
}

.container{max-width:1040px;margin:0 auto;padding:18px 20px 40px}

.nav{
  position:sticky;
  top:0;
  background:linear-gradient(180deg,rgba(2,6,23,.98),rgba(2,6,23,.92));
  backdrop-filter:saturate(150%) blur(10px);
  border-bottom:1px solid rgba(148,163,184,.35);
  z-index:5;
}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:16px}
.brand{
  font-weight:700;
  letter-spacing:.16em;
  font-size:13px;
  text-transform:uppercase;
  color:var(--mut);
}
.brand span{
  display:inline-block;
  margin-left:8px;
  padding:3px 8px;
  border-radius:999px;
  background:linear-gradient(135deg,rgba(34,211,238,.14),rgba(129,140,248,.28));
  color:var(--fg);
  font-size:11px;
}
.links{display:flex;gap:10px;flex-wrap:wrap}
.links a{
  color:var(--fg);
  text-decoration:none;
  padding:8px 13px;
  border-radius:999px;
  border:1px solid rgba(148,163,184,.4);
  background:linear-gradient(135deg,rgba(15,23,42,.9),rgba(15,23,42,.82));
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:13px;
  transition:transform .18s ease,border-color .18s ease,box-shadow .18s ease,background .18s ease;
}
.links a::after{content:"↗";font-size:11px;opacity:.7}
.links a:hover{
  transform:translate3d(0,-2px,0);
  border-color:rgba(56,189,248,.8);
  box-shadow:0 14px 35px rgba(15,23,42,.9);
  background:linear-gradient(135deg,rgba(15,23,42,.96),rgba(30,64,175,.96));
}

.hero{
  display:grid;
  grid-template-columns:1.3fr 1fr;
  gap:26px;
  margin:26px 0 30px;
  align-items:stretch;
}
.hero-main{
  border-radius:var(--radius-lg);
  padding:22px 22px 20px;
  background:
    linear-gradient(135deg,rgba(15,23,42,.96),rgba(17,24,39,.98)),
    radial-gradient(circle at 0 0,rgba(56,189,248,.18),transparent 55%),
    radial-gradient(circle at 100% 100%,rgba(129,140,248,.22),transparent 55%);
  border:1px solid rgba(148,163,184,.5);
  box-shadow:var(--shadow-deep);
  transform:translate3d(0,0,0);
  transition:transform .28s ease,box-shadow .28s ease,border-color .28s ease;
}
.hero-main:hover{
  transform:translate3d(0,-4px,0);
  box-shadow:0 30px 90px rgba(15,23,42,.98);
  border-color:rgba(56,189,248,.8);
}
.hero-eyebrow{
  font-size:11px;
  letter-spacing:.16em;
  text-transform:uppercase;
  color:var(--mut);
  margin-bottom:6px;
}
.hero h1{
  font-size:30px;
  line-height:1.15;
  margin:0 0 10px;
  background:linear-gradient(120deg,#e5e7eb,#22d3ee,#a855f7);
  background-size:200% 200%;
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
  animation:heroGradient 10s ease infinite;
}
.hero-sub{
  color:var(--mut);
  font-size:14px;
  margin-bottom:14px;
  max-width:34rem;
}
.hero-meta{
  display:flex;
  gap:12px;
  flex-wrap:wrap;
  font-size:12px;
  color:var(--mut);
}
.hero-meta span{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:4px 9px;
  border-radius:999px;
  background:rgba(15,23,42,.9);
  border:1px solid rgba(148,163,184,.4);
}
.hero-meta span::before{
  content:"●";
  font-size:10px;
  color:#22d3ee;
}

.hero-aside{
  border-radius:var(--radius-lg);
  padding:18px 18px 16px;
  background:
    radial-gradient(circle at 0 0,rgba(56,189,248,.22),transparent 55%),
    radial-gradient(circle at 120% 120%,rgba(129,140,248,.3),transparent 55%),
    linear-gradient(135deg,rgba(15,23,42,.98),rgba(15,23,42,.96));
  border:1px solid rgba(148,163,184,.55);
  box-shadow:0 18px 55px rgba(15,23,42,.9);
  position:relative;
  overflow:hidden;
}
.hero-aside::before{
  content:"";
  position:absolute;
  inset:-40%;
  background:conic-gradient(from 120deg at 10% 0,#22d3ee,transparent 40%,#8b5cf6,transparent 75%,#22c55e);
  opacity:.16;
  mix-blend-mode:screen;
  filter:blur(24px);
  pointer-events:none;
}
.hero-aside p{position:relative;z-index:1}

.mut{color:var(--mut)}

.cta{display:flex;gap:10px;flex-wrap:wrap;margin-top:8px}
.btn{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:10px 15px;
  border-radius:999px;
  border:1px solid rgba(148,163,184,.4);
  background:linear-gradient(135deg,rgba(15,23,42,.95),rgba(15,23,42,.9));
  color:var(--fg);
  text-decoration:none;
  font-size:14px;
  cursor:pointer;
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease,background .2s ease;
}
.btn span.icon{font-size:16px}
.btn.primary{
  background:linear-gradient(130deg,#22d3ee,#38bdf8,#8b5cf6);
  border-color:transparent;
  box-shadow:0 14px 35px rgba(8,47,73,.9);
}
.btn.primary:hover{
  transform:translate3d(0,-2px,0) scale(1.01);
  box-shadow:0 20px 60px rgba(8,47,73,1);
}
.btn:not(.primary):hover{
  transform:translate3d(0,-2px,0);
  border-color:rgba(56,189,248,.8);
  box-shadow:0 14px 35px rgba(15,23,42,.9);
}

.grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:18px;
}
.tile{
  border-radius:var(--radius-lg);
  padding:18px 18px 16px;
  background:linear-gradient(135deg,rgba(15,23,42,.96),rgba(15,23,42,.9));
  border:1px solid rgba(148,163,184,.55);
  box-shadow:0 14px 45px rgba(15,23,42,.9);
  display:flex;
  flex-direction:column;
  gap:6px;
  position:relative;
  overflow:hidden;
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease,background .22s ease;
}
.tile::before{
  content:"";
  position:absolute;
  inset:-40%;
  background:radial-gradient(circle at 0 0,rgba(56,189,248,.16),transparent 60%);
  opacity:.7;
  mix-blend-mode:screen;
  pointer-events:none;
}
.tile h3{margin:0 0 4px;font-size:16px}
.tile p{margin:0;font-size:13px;color:var(--mut)}
.tile .go{
  margin-top:12px;
  display:inline-flex;
  gap:8px;
  align-items:center;
  font-size:13px;
  color:#e5e7eb;
  text-decoration:none;
}
.tile .go::after{content:"↗";font-size:11px;opacity:.8}
.tile:hover{
  transform:translate3d(0,-3px,0);
  box-shadow:0 22px 65px rgba(15,23,42,.98);
  border-color:rgba(56,189,248,.85);
  background:linear-gradient(135deg,rgba(15,23,42,.98),rgba(30,64,175,.98));
}

@keyframes heroGradient{
  0%,100%{background-position:0% 50%}
  50%{background-position:100% 50%}
}

@media (max-width:860px){
  .hero{grid-template-columns:1fr;margin-top:20px}
  .container{padding:16px 16px 32px}
}
@media (max-width:640px){
  .nav-inner{flex-direction:column;align-items:flex-start}
}