:root{
  --blue:#0a1930;
  --gold:#cda434;
  --muted:#94a3b8;
  --card: #071029;
  --glass: rgba(255,255,255,0.03);
  --max:1200px;
  color-scheme: dark;
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}
*{box-sizing:border-box}
body{margin:0;background:linear-gradient(180deg,var(--blue),#071224);color:#e6eef8}
.container{max-width:var(--max);margin:0 auto;padding:1rem}
header .navbar-brand{color:var(--gold)!important;font-weight:700}
.hero-carousel{height:90vh;position:relative}
.carousel-item img{object-fit:cover;height:90vh;width:100%;filter:brightness(55%)}
.carousel-caption{bottom:45%}
.carousel-caption h1{font-size:2.8rem;color:#fff;text-shadow:2px 2px 12px rgba(0,0,0,0.6);font-weight:700}
.btn-gold{background:var(--gold);color:var(--blue);border:none;padding:12px 22px;font-weight:700;border-radius:6px}
.btn-gold:hover{opacity:0.95}
section{padding:60px 20px;background:transparent}
.section-title{color:var(--gold);font-size:1.4rem;margin-bottom:20px}
/* Contador */
.countdown-container{display:flex;justify-content:center;align-items:center;margin-top:40px}
#countdown{display:flex;gap:18px;flex-wrap:wrap;justify-content:center}
.time-box{background:rgba(255,255,255,0.1);border:2px solid var(--gold);border-radius:12px;padding:18px 24px;text-align:center;min-width:110px}
.time-box span{display:block;font-size:2.2rem;font-weight:700;color:var(--gold)}
.time-box small{display:block;margin-top:6px;color:#e6eef8;font-size:.9rem}


/* 
.ejes-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.eje{background:linear-gradient(180deg, rgba(255,255,255,0.03), rgba(255,255,255,0.01));padding:18px;border-radius:12px;border-left:4px solid var(--gold);font-weight:600}
.eje small{display:block;color:var(--muted);font-weight:500;margin-top:8px}
6b7280
*/

.ejes-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-top:20px}
.eje{background:#0a1930;padding:18px;border-radius:12px;transition:transform .25s,box-shadow .25s;border-left:4px solid var(--gold)}
.eje strong{color:#0a1930;font-size:1rem}
.eje .desc{color:#0a1930;margin-top:8px}
.eje:hover{transform:scale(1.04);box-shadow:0 8px 24px rgba(0,0,0,.2)}


.ponentes-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.ponente{background:linear-gradient(180deg, rgba(255,255,255,0.02), rgba(255,255,255,0.01));padding:12px;border-radius:12px;text-align:center}
.foto-wrap{position:relative;border-radius:10px;overflow:hidden;height:260px;background:var(--card);display:flex;align-items:center;justify-content:center}
.foto-wrap img{width:100%;height:100%;object-fit:cover;display:block}
.linkedin-overlay{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;background:linear-gradient(180deg, rgba(0,0,0,0.2), rgba(0,0,0,0.6));opacity:0;transition:opacity .18s}
.linkedin-overlay img{width:56px;height:56px}
.foto-wrap:hover .linkedin-overlay,.foto-wrap.show .linkedin-overlay{opacity:1}
.nombre{margin-top:10px;font-weight:700;color:var(--gold)}
.nacionalidad{color:var(--muted);margin:4px 0}
.bio{color:#cbd5e1;font-size:0.95rem}

/*
.agenda-days{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:14px}
.day-btn{background:transparent;border:1px solid rgba(255,255,255,0.04);padding:8px 12px;border-radius:8px;color:var(--muted);cursor:pointer}
.day-btn.active{background:var(--gold);color:var(--blue);border-color:transparent}
*/

/* Agenda */
.day-btn{background:var(--blue);color:var(--gold);border:2px solid var(--gold);border-radius:8px;padding:8px 14px;font-weight:700;cursor:pointer;transition:all .3s}
.day-btn.active,.day-btn:hover{background:var(--gold);color:var(--blue)}
.agenda-slots .slot{background:rgba(8, 21, 40);padding:10px 14px;border-radius:8px;margin-bottom:6px}


.slots{display:grid;gap:10px}
.slot{display:flex;gap:12px;align-items:flex-start;padding:12px;border-radius:8px;background:rgba(255,255,255,0.02);border:1px solid rgba(255,255,255,0.03)}
.hora{min-width:140px;font-weight:700;color:#000000}
.evento{color:#dfe7f5}
@media (max-width:1000px){ .ejes-grid{grid-template-columns:repeat(2,1fr)} .ponentes-grid{grid-template-columns:repeat(2,1fr)} }
@media (max-width:600px){ .ejes-grid{grid-template-columns:1fr} .ponentes-grid{grid-template-columns:1fr} .carousel-caption h1{font-size:1.6rem} }