:root{
  --bg:#f7fbff;
  --card:#ffffff;
  --text:#0b1b2a;
  --muted:#4f647a;
  --line:rgba(11,27,42,.10);
  --blue:#2b7bff;
  --blue2:#6ec6ff;
  --shadow:0 18px 50px rgba(11,27,42,.10);
  --radius:18px;
  --radius2:26px;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:Inter, system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  color:var(--text);
  background:linear-gradient(180deg, #ffffff 0%, var(--bg) 45%, #ffffff 100%);
}

a{color:inherit; text-decoration:none}
.container{width:min(1100px, calc(100% - 40px)); margin:0 auto}

.topbar{
  position:sticky; top:0; z-index:50;
  backdrop-filter:saturate(180%) blur(14px);
  background:rgba(255,255,255,.75);
  border-bottom:1px solid var(--line);
}
.topbar-inner{
  height:68px; display:flex; align-items:center; justify-content:space-between; gap:16px;
}
.brand{display:flex; align-items:center; gap:10px; font-weight:700}
.brand-mark{
  width:34px;height:34px;border-radius:12px;
  display:grid;place-items:center;
  background:linear-gradient(135deg, var(--blue2), var(--blue));
  color:#fff; box-shadow:0 10px 30px rgba(43,123,255,.25);
}
.brand-text{letter-spacing:.3px}

/* ✅ LOGO GRANDE EN EL HEADER */
.brand-logo{
  height:65px;
  width:auto;
  display:block;
}

.nav{display:flex; gap:18px; align-items:center}
.nav a{color:var(--muted); font-weight:600; font-size:14px}
.nav a:hover{color:var(--text)}
.nav-toggle{
  display:none;
  border:1px solid var(--line);
  background:#fff;
  border-radius:14px;
  height:40px; width:44px;
  font-size:18px;
}

.nav-pdf{
  background:#fff;
  color:var(--text);
  border:1px solid var(--line);
  box-shadow:none;
}
.nav-pdf:hover{
  border-color:rgba(43,123,255,.35);
  box-shadow:0 10px 30px rgba(11,27,42,.08);
}

.btn{
  display:inline-flex; align-items:center; justify-content:center;
  gap:10px;
  padding:12px 16px;
  border-radius:16px;
  background:linear-gradient(135deg, var(--blue2), var(--blue));
  color:#fff;
  font-weight:700;
  border:1px solid rgba(43,123,255,.25);
  box-shadow:0 14px 35px rgba(43,123,255,.22);
}
.btn:hover{transform:translateY(-1px)}
.btn:active{transform:translateY(0)}
.btn-sm{padding:10px 14px; border-radius:14px; font-size:13px}
.btn-ghost{
  background:#fff;
  color:var(--text);
  box-shadow:none;
  border:1px solid var(--line);
}
.btn-ghost:hover{border-color:rgba(43,123,255,.35); box-shadow:0 10px 30px rgba(11,27,42,.08)}

.hero{
  position:relative;
  padding:54px 0 28px;
  overflow:hidden;
}
.hero-bg{
  position:absolute; inset:-120px -100px auto -100px;
  height:460px;
  background:
    radial-gradient(closest-side, rgba(110,198,255,.55), transparent 70%),
    radial-gradient(closest-side, rgba(43,123,255,.35), transparent 70%);
  filter:blur(20px);
  opacity:.75;
  pointer-events:none;
  z-index:0;
}
.hero-grid{
  position:relative;
  z-index:1;
  display:grid;
  grid-template-columns: 1.1fr .9fr;
  gap:26px;
  align-items:start;
}
.pill{
  display:inline-flex;
  padding:10px 16px;
  border-radius:999px;
  background:rgba(255,255,255,.8);
  border:1px solid var(--line);
  color:var(--text);
  font-weight:700;
  font-size:17px;
  letter-spacing:-.2px;
}
.hero h1{
  margin:14px 0 10px;
  font-size: clamp(28px, 4vw, 44px);
  line-height:1.05;
  letter-spacing:-.5px;
}
.subtitle{margin:0; color:var(--muted); font-size:16px; line-height:1.55}
.hero-meta{
  margin-top:14px;
  display:flex; flex-wrap:wrap; gap:10px;
  color:var(--muted);
  font-weight:600;
}
.meta-chip{
  display:inline-flex; gap:8px; align-items:center;
  padding:10px 12px; border-radius:16px;
  background:rgba(255,255,255,.8);
  border:1px solid var(--line);
  font-size:13px;
}
.hero-actions{margin-top:18px; display:flex; gap:12px; flex-wrap:wrap}
.hero-mini{margin-top:18px; display:grid; grid-template-columns:1fr 1fr; gap:12px}
.mini-card{
  background:rgba(255,255,255,.85);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:14px;
}
.mini-card--soft{background:rgba(255,255,255,.65)}
.mini-title{font-weight:800; font-size:12px; letter-spacing:.6px; text-transform:uppercase; color:var(--muted)}
.mini-text{margin-top:8px; font-weight:600; color:var(--text); line-height:1.3}

.section{padding:52px 0}
.section-alt{background:linear-gradient(180deg, rgba(110,198,255,.14), rgba(255,255,255,0))}
.section-head{display:flex; align-items:flex-end; justify-content:space-between; gap:18px; margin-bottom:20px}
.section-head h2{margin:0; font-size:28px; letter-spacing:-.2px}
.section-head p{margin:0; color:var(--muted); line-height:1.5}

.card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius2);
  padding:20px;
  box-shadow:var(--shadow);
}
.card-title{font-weight:800; margin:0 0 10px; letter-spacing:-.2px}
.card-text{margin:0; color:var(--muted); line-height:1.65}
.divider{height:1px; background:var(--line); margin:16px 0}

.list{margin:0; padding-left:18px; color:var(--muted); line-height:1.65}
.list li{margin:8px 0}

.grid{
  display:grid;
  grid-template-columns: repeat(3, 1fr);
  gap:14px;
}
.talk{
  display:flex; flex-direction:column; gap:10px;
  padding:18px;
  background:rgba(255,255,255,.9);
  border:1px solid var(--line);
  border-radius:22px;
}
.talk-title{font-weight:800; letter-spacing:-.2px}
.talk-speaker{color:var(--muted); font-weight:600}
.badge{
  display:inline-flex; align-items:center;
  gap:8px;
  padding:8px 10px;
  border-radius:999px;
  border:1px solid var(--line);
  background:#fff;
  color:var(--muted);
  font-weight:700;
  font-size:12px;
  width:max-content;
}

.note{
  margin-top:14px;
  padding:14px 16px;
  border-radius:18px;
  border:1px solid rgba(43,123,255,.25);
  background:rgba(110,198,255,.14);
  color:var(--muted);
}

.speakers-grid{
  display:grid;
  grid-template-columns: repeat(3, 1fr);
  gap:14px;
}
.speaker{
  overflow:hidden;
  border-radius:26px;
  border:1px solid var(--line);
  background:#fff;
  box-shadow:var(--shadow);
  display:flex;
  flex-direction:column;
}
.speaker-top{display:flex; gap:12px; padding:16px}
.avatar{
  width:72px; height:72px;
  border-radius:20px;
  overflow:hidden;
  border:1px solid var(--line);
  background:linear-gradient(135deg, rgba(110,198,255,.35), rgba(43,123,255,.25));
  flex:0 0 auto;
}
.avatar img{width:100%; height:100%; object-fit:cover; display:block}
.speaker-name{font-weight:900; letter-spacing:-.2px}
.speaker-role{margin-top:4px; color:var(--muted); font-weight:600; font-size:13px; line-height:1.35}
.speaker-body{padding:0 16px 16px}
.speaker-bio{margin:10px 0 0; color:var(--muted); line-height:1.6; font-size:14px}
.links{margin-top:10px; display:flex; flex-wrap:wrap; gap:8px}
.link{
  display:inline-flex; align-items:center; gap:8px;
  padding:8px 10px;
  border-radius:999px;
  background:#fff;
  border:1px solid var(--line);
  color:var(--muted);
  font-weight:700;
  font-size:12px;
}
.link:hover{border-color:rgba(43,123,255,.35); color:var(--text)}

.two-col{
  display:grid;
  grid-template-columns: 1fr 1fr;
  gap:14px;
}
.table{display:flex; flex-direction:column; gap:8px}
.row{
  display:flex; justify-content:space-between; gap:10px;
  padding:10px 12px;
  border:1px solid var(--line);
  border-radius:16px;
  background:rgba(255,255,255,.9);
  color:var(--muted);
  font-weight:600;
}
.row strong{color:var(--text)}
.hint{margin-top:12px; color:var(--muted); font-size:13px; line-height:1.5}

.steps{margin:0; padding-left:18px; color:var(--muted); line-height:1.7}
.steps li{margin:10px 0}

.contacts{display:flex; flex-direction:column; gap:10px}
.contact{
  display:flex; justify-content:space-between; align-items:flex-start; gap:10px;
  padding:12px;
  border:1px solid var(--line);
  border-radius:18px;
  background:#fff;
}
.contact-name{font-weight:900}
.contact-note{color:var(--muted); font-weight:600; font-size:13px; margin-top:6px}
.contact a{color:var(--blue); font-weight:800}

.transport{display:flex; flex-direction:column; gap:10px; margin-top:4px}
.transport-item{
  display:flex; align-items:center; gap:12px;
  padding:12px 14px;
  border:1px solid var(--line);
  border-radius:16px;
  background:rgba(255,255,255,.9);
}
.transport-icon{font-size:22px; line-height:1; flex:0 0 auto}
.transport-label{font-weight:800; font-size:13px; color:var(--text)}
.transport-text{font-weight:600; font-size:13px; color:var(--muted); margin-top:2px}

.map{padding:0; overflow:hidden}
.map iframe{width:100%; height:340px; border:0; display:block}

.footer-cta{padding:40px 0 62px}
.cta{
  border-radius:30px;
  padding:22px;
  border:1px solid rgba(43,123,255,.20);
  background:linear-gradient(135deg, rgba(110,198,255,.18), rgba(255,255,255,.65));
  display:flex; gap:14px; align-items:center; justify-content:space-between; flex-wrap:wrap;
}
.cta h2{margin:0; letter-spacing:-.2px}
.cta p{margin:6px 0 0; color:var(--muted); line-height:1.55}
.cta-actions{display:flex; gap:10px; flex-wrap:wrap}

.footer{
  border-top:1px solid var(--line);
  background:rgba(255,255,255,.75);
  backdrop-filter: blur(10px);
}
.footer-inner{padding:22px 0; display:flex; justify-content:space-between; gap:20px; flex-wrap:wrap}
.footer-brand{font-weight:900; letter-spacing:.4px}
.footer-text{margin-top:6px; color:var(--muted)}
.footer-links{display:flex; gap:14px; flex-wrap:wrap}
.footer-links a{color:var(--muted); font-weight:700; font-size:14px}
.footer-links a:hover{color:var(--text)}

@media (max-width: 980px){
  .hero-grid{grid-template-columns:1fr}
  .grid{grid-template-columns:1fr 1fr}
  .speakers-grid{grid-template-columns:1fr 1fr}
}
@media (max-width: 680px){
  .nav{display:none}
  .nav-toggle{display:inline-grid; place-items:center}
  .hero-mini{grid-template-columns:1fr}
  .grid{grid-template-columns:1fr}
  .speakers-grid{grid-template-columns:1fr}
  .two-col{grid-template-columns:1fr}
}
/* =========================
   MODAL (Donaciones)
========================= */

.modal{
  position:fixed;
  inset:0;
  display:flex;
  align-items:center;
  justify-content:center;
  z-index:999;
  opacity:0;
  pointer-events:none;
  transition:opacity .25s ease;
}

.modal[aria-hidden="false"]{
  opacity:1;
  pointer-events:auto;
}

.modal-backdrop{
  position:absolute;
  inset:0;
  background:rgba(11,27,42,.45);
  backdrop-filter:blur(6px);
}

.modal-dialog{
  position:relative;
  width:min(520px, calc(100% - 40px));
  background:#fff;
  border-radius:28px;
  padding:26px;
  box-shadow:0 40px 100px rgba(11,27,42,.25);
  animation:modalIn .25s ease;
}

@keyframes modalIn{
  from{
    transform:translateY(20px) scale(.98);
    opacity:0;
  }
  to{
    transform:translateY(0) scale(1);
    opacity:1;
  }
}

.modal-close{
  position:absolute;
  top:16px;
  right:16px;
  border:none;
  background:rgba(11,27,42,.06);
  width:36px;
  height:36px;
  border-radius:12px;
  font-size:16px;
  cursor:pointer;
}

.modal-close:hover{
  background:rgba(11,27,42,.12);
}

/* ===== Donaciones ===== */

.nav-donate{
  color:var(--muted);
  font-weight:800;
  font-size:14px;
  padding:10px 14px;
  border-radius:14px;
  border:1px solid rgba(43,123,255,.20);
  background:rgba(255,255,255,.7);
}

.nav-donate:hover{
  color:var(--text);
  border-color:rgba(43,123,255,.35);
}

.donations-title{
  font-weight:900;
  font-size:22px;
  letter-spacing:-.3px;
}

.donations-sub{
  margin-top:6px;
  color:var(--muted);
  font-weight:600;
}

.donations-box{
  margin-top:18px;
  border:1px solid var(--line);
  border-radius:22px;
  padding:18px;
  background:rgba(255,255,255,.9);
}

.donations-label{
  font-size:12px;
  font-weight:900;
  letter-spacing:.7px;
  text-transform:uppercase;
  color:var(--muted);
}

.donations-iban{
  margin-top:8px;
  font-weight:900;
  font-size:18px;
  padding:12px;
  border-radius:16px;
  border:1px dashed rgba(43,123,255,.35);
  background:#fff;
  word-break:break-word;
}

.donations-meta{
  margin-top:10px;
  font-size:14px;
  color:var(--muted);
  font-weight:600;
}

.donations-actions{
  margin-top:14px;
  display:flex;
  gap:10px;
}
/* =========================
   SOLD-OUT CARD
========================= */

.card-sold-out {
  position: relative;
  overflow: hidden;
}

/* Desatura todo el contenido dentro del card */
.card-sold-out .card-title,
.card-sold-out .list,
.card-sold-out .list li,
.card-sold-out .btn {
  color: #b0b8c1 !important;
  border-color: rgba(176,184,193,.35) !important;
  box-shadow: none !important;
  filter: grayscale(1) opacity(.55);
  pointer-events: none;
}

/* Franja diagonal "AGOTADO" */
.sold-out-ribbon {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  pointer-events: none;
  z-index: 10;
}

.sold-out-ribbon span {
  display: block;
  padding: 10px 0;
  width: 140%;
  text-align: center;
  background: rgba(220, 30, 30, 0.88);
  color: #fff;
  font-weight: 900;
  font-size: 22px;
  letter-spacing: 4px;
  text-transform: uppercase;
  transform: rotate(-35deg);
  box-shadow: 0 4px 18px rgba(200,0,0,.35);
  user-select: none;
  border-top: 2px solid rgba(255,255,255,.25);
  border-bottom: 2px solid rgba(255,255,255,.25);
}