:root{
  --azul-950:#0b1f3a;
  --azul-800:#1a3f6f;
  --azul-700:#215a96;
  --azul-600:#2c74b3;
  --azul-100:#eaf2fb;
  --azul-50:#f4f8fd;
  --gris-900:#1c232e;
  --gris-600:#5b6675;
  --gris-300:#d8dfe8;
  --gris-100:#f3f5f8;
  --blanco:#ffffff;
  --verde-ok:#1c7c4f;
  --rojo-viiv:#e2001a;
  --radio:14px;
  --sombra:0 4px 18px rgba(11,31,58,.08);
  --max:1080px;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:"Inter",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  color:var(--gris-900);
  background:var(--blanco);
  line-height:1.55;
}
img{max-width:100%;display:block}
a{color:var(--azul-700)}
.contenedor{max-width:var(--max);margin:0 auto;padding:0 24px}

/* Barra superior de patrocinio (banner web) */
.banner-patrocinio{
  background:var(--gris-900);
  color:#fff;
}
.banner-patrocinio .contenedor{
  display:flex;
  align-items:center;
  justify-content:center;
  gap:14px;
  padding:9px 24px;
  font-size:13px;
  flex-wrap:wrap;
  text-align:center;
}
.banner-patrocinio span.etiqueta{
  color:#9fb3cc;
  text-transform:uppercase;
  letter-spacing:.06em;
  font-size:11px;
}
.banner-patrocinio a.banner-link{
  display:inline-flex;
  align-items:center;
  gap:8px;
  color:#fff;
  text-decoration:none;
  font-weight:600;
}
.banner-patrocinio a.banner-link img{height:20px;width:auto;filter:brightness(0) invert(1)}
.banner-patrocinio a.banner-link:hover{text-decoration:underline}

/* Cabecera */
header.cabecera{
  background:linear-gradient(135deg,var(--azul-950),var(--azul-700));
  color:#fff;
  padding:64px 0 50px;
  position:relative;
  overflow:hidden;
}
header.cabecera::before{
  content:"";
  position:absolute;
  top:-140px;
  right:-140px;
  width:460px;
  height:460px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(255,111,168,.28),rgba(255,111,168,0) 70%);
  pointer-events:none;
}
header.cabecera::after{
  content:"";
  position:absolute;
  bottom:-160px;
  right:120px;
  width:360px;
  height:360px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(58,199,178,.18),rgba(58,199,178,0) 70%);
  pointer-events:none;
}
header.cabecera .contenedor{position:relative;z-index:1}
header.cabecera .cabecera-grid{
  display:flex;
  flex-direction:row;
  align-items:center;
  justify-content:space-between;
  gap:36px;
  flex-wrap:wrap-reverse;
}
.cabecera-texto{
  display:flex;
  flex-direction:column;
  gap:14px;
  flex:1;
  min-width:300px;
}
.marca-hero{
  display:flex;
  flex-direction:column;
  align-items:flex-end;
  gap:4px;
  flex-shrink:0;
  text-align:right;
}
.marca-hero-pre{
  font-size:16px;
  font-weight:700;
  letter-spacing:.3em;
  text-transform:uppercase;
  color:#ff85b3;
}
.marca-hero-nombre{
  position:relative;
  display:inline-flex;
  align-items:flex-start;
  gap:8px;
  font-size:76px;
  line-height:.95;
  font-weight:800;
  color:#fff;
  letter-spacing:-.01em;
  white-space:nowrap;
}
.marca-burbuja{
  width:34px;
  height:26px;
  color:#ff85b3;
  flex-shrink:0;
  margin-top:2px;
}
.marca-hero-tag{
  font-size:15px;
  color:#bcd3ee;
  font-weight:500;
}
@media (max-width:900px){
  .marca-hero-nombre{font-size:58px}
}
@media (max-width:640px){
  .marca-hero{align-items:center;text-align:center;width:100%}
  .marca-hero-nombre{font-size:52px}
  .marca-burbuja{width:28px;height:22px}
}
.marca-proyecto{
  font-size:13px;
  letter-spacing:.14em;
  text-transform:uppercase;
  color:#bcd3ee;
  font-weight:600;
}
header.cabecera h1{
  margin:0;
  font-size:clamp(28px,4.4vw,44px);
  line-height:1.15;
  max-width:820px;
}
header.cabecera p.lead{
  margin:4px 0 0;
  font-size:17px;
  color:#dbe8f8;
  max-width:660px;
}
.meta-coord{
  margin-top:18px;
  display:flex;
  gap:22px;
  flex-wrap:wrap;
  font-size:14px;
  color:#cfe0f5;
}
.meta-coord strong{color:#fff}

nav.subnav{
  background:var(--azul-50);
  border-bottom:1px solid var(--gris-300);
  position:sticky;
  top:0;
  z-index:20;
}
nav.subnav .contenedor{
  display:flex;
  gap:6px;
  overflow-x:auto;
  padding:0 24px;
}
nav.subnav a{
  white-space:nowrap;
  text-decoration:none;
  color:var(--azul-800);
  font-size:14px;
  font-weight:600;
  padding:14px 12px;
  border-bottom:3px solid transparent;
}
nav.subnav a:hover{border-bottom-color:var(--azul-600)}

section{padding:52px 0}
section.alt{background:var(--gris-100)}
h2.titulo-seccion{
  font-size:26px;
  color:var(--azul-950);
  margin:0 0 6px;
}
p.subtitulo-seccion{
  color:var(--gris-600);
  margin:0 0 28px;
  max-width:680px;
}
p.subtitulo-seccion.objetivo-general{
  max-width:none;
  color:var(--gris-900);
  font-size:16px;
}
p{text-align:justify}
.sponsor-card p{text-align:center}

.grid-objetivos{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:16px;
}
@media (max-width:820px){.grid-objetivos{grid-template-columns:repeat(2,1fr)}}
@media (max-width:560px){.grid-objetivos{grid-template-columns:1fr}}
.objetivo-card{
  background:#fff;
  border:1px solid var(--gris-300);
  border-radius:var(--radio);
  padding:18px 18px 20px;
}
.objetivo-card .num{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:26px;height:26px;
  border-radius:50%;
  background:var(--azul-100);
  color:var(--azul-700);
  font-size:12px;
  font-weight:700;
  margin-bottom:10px;
}
.objetivo-card p{margin:0;font-size:14.5px;color:var(--gris-900)}

.caja-general{
  background:var(--azul-100);
  border:1px solid #cfe1f6;
  border-radius:var(--radio);
  padding:24px 26px;
  margin:32px 0 10px;
  font-size:15px;
}
.caja-pregunta{
  margin:0 0 18px;
  font-weight:700;
  font-size:17px;
  color:var(--azul-950);
}
.caja-respuesta{margin:0}

/* Cronograma */
.timeline{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:14px;
}
@media (max-width:820px){.timeline{grid-template-columns:repeat(2,1fr)}}
@media (max-width:480px){.timeline{grid-template-columns:1fr}}
.timeline-item{
  background:#fff;
  border:1px solid var(--gris-300);
  border-radius:var(--radio);
  padding:16px;
  text-align:left;
}
.timeline-item .fecha{
  font-size:12px;
  font-weight:700;
  text-transform:uppercase;
  color:var(--azul-600);
  letter-spacing:.05em;
}
.timeline-item .estado{
  display:inline-block;
  margin-top:6px;
  font-size:11px;
  padding:2px 8px;
  border-radius:20px;
  background:#eef1f5;
  color:var(--gris-600);
}
.timeline-item .estado.hecha{background:#e5f4ec;color:var(--verde-ok)}
.timeline-item h4{margin:10px 0 0;font-size:14.5px;line-height:1.35}

/* Tarjetas de sesión */
.sesion{
  background:#fff;
  border:1px solid var(--gris-300);
  border-radius:18px;
  padding:0;
  margin-bottom:26px;
  overflow:hidden;
  scroll-margin-top:70px;
  box-shadow:var(--sombra);
}
.sesion-cabecera{
  padding:22px 26px;
  background:var(--azul-50);
  border-bottom:1px solid var(--gris-300);
  display:flex;
  justify-content:space-between;
  align-items:flex-start;
  gap:16px;
  flex-wrap:wrap;
}
.sesion-cabecera .num-sesion{
  font-size:12px;
  font-weight:700;
  color:var(--azul-600);
  text-transform:uppercase;
  letter-spacing:.06em;
}
.sesion-cabecera h3{
  margin:4px 0 6px;
  font-size:20px;
  color:var(--azul-950);
  max-width:560px;
}
.sesion-cabecera .fecha-sesion{
  font-size:13.5px;
  color:var(--gris-600);
}
.zoom-link{
  display:inline-flex;
  align-items:center;
  gap:6px;
  margin-top:10px;
  font-size:13px;
  font-weight:700;
  color:var(--azul-700);
  text-decoration:none;
  border:1px solid var(--azul-700);
  border-radius:20px;
  padding:6px 14px;
}
.zoom-link:hover{background:var(--azul-700);color:#fff}
.patrocinador-sesion{
  display:flex;
  align-items:center;
  gap:10px;
  background:#fff;
  border:1px solid var(--gris-300);
  border-radius:12px;
  padding:8px 12px;
  min-width:200px;
}
.patrocinador-sesion img{height:30px;width:auto;object-fit:contain}
.patrocinador-sesion .txt{font-size:11.5px;color:var(--gris-600);line-height:1.3}
.patrocinador-sesion .txt strong{display:block;color:var(--gris-900);font-size:12.5px}
.patrocinador-sesion a.enlace-sponsor{font-size:11px}

.sesion-cuerpo{padding:22px 26px 26px}

table.agenda{
  width:100%;
  border-collapse:collapse;
  font-size:14px;
  margin-bottom:22px;
}
table.agenda th, table.agenda td{
  text-align:left;
  padding:10px 12px;
  border-bottom:1px solid var(--gris-300);
  vertical-align:top;
}
table.agenda th{
  background:var(--azul-800);
  color:#fff;
  font-size:12px;
  text-transform:uppercase;
  letter-spacing:.04em;
}
table.agenda td.bloque{font-weight:700;white-space:nowrap;color:var(--azul-800)}
table.agenda td.responsable{color:var(--gris-600);white-space:nowrap}
table.agenda tbody tr:nth-child(even){background:var(--gris-100)}

/* Bloque vídeo con contraseña */
.video-bloque{
  border:1px dashed var(--gris-300);
  border-radius:var(--radio);
  padding:20px;
  background:var(--gris-100);
}
.video-bloque h4{margin:0 0 4px;font-size:14.5px;color:var(--gris-900)}
.video-bloque p.ayuda{margin:0 0 14px;font-size:13px;color:var(--gris-600)}
.form-clave{display:flex;gap:8px;flex-wrap:wrap;align-items:center}
.form-clave input[type=password]{
  flex:1;
  min-width:180px;
  padding:10px 12px;
  border:1px solid var(--gris-300);
  border-radius:8px;
  font-size:14px;
}
.form-clave button{
  padding:10px 18px;
  border:none;
  border-radius:8px;
  background:var(--azul-700);
  color:#fff;
  font-weight:600;
  font-size:14px;
  cursor:pointer;
}
.form-clave button:hover{background:var(--azul-800)}
.mensaje-error{
  color:#b3261e;
  font-size:13px;
  margin-top:8px;
  display:none;
}
.video-embed{display:none;margin-top:14px}
.video-embed .ratio{
  position:relative;
  width:100%;
  padding-top:56.25%;
  border-radius:10px;
  overflow:hidden;
  background:#000;
}
.video-embed iframe{
  position:absolute;top:0;left:0;width:100%;height:100%;border:0;
}
.video-pendiente{
  display:none;
  font-size:13px;
  color:var(--gris-600);
  background:#fff8e6;
  border:1px solid #f0dfa8;
  border-radius:8px;
  padding:10px 12px;
  margin-top:12px;
}

/* Patrocinadores */
.grid-sponsors{
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(220px,1fr));
  gap:18px;
}
.sponsor-card{
  background:#fff;
  border:1px solid var(--gris-300);
  border-radius:var(--radio);
  padding:22px;
  text-align:center;
}
.sponsor-card img{height:56px;width:auto;margin:0 auto 14px;object-fit:contain}
.sponsor-card h4{margin:0 0 6px;font-size:15px}
.sponsor-card p{margin:0;font-size:13px;color:var(--gris-600)}
.sponsor-card a{font-size:13px;font-weight:600}

/* Contacto */
.grid-contacto{
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(240px,1fr));
  gap:18px;
}
.contacto-card{
  background:#fff;
  border:1px solid var(--gris-300);
  border-radius:var(--radio);
  padding:20px 22px;
}
.contacto-card h4{margin:0 0 8px;color:var(--azul-950);font-size:15px}
.contacto-card p{margin:0;font-size:14px;color:var(--gris-600);text-align:left}

footer{
  background:var(--azul-950);
  color:#b9c9dd;
  padding:26px 0;
  font-size:13px;
  text-align:center;
}
footer .contenedor{display:flex;justify-content:center;gap:16px;flex-wrap:wrap}
footer a{color:#dce8f7}

.aviso-nota{
  font-size:12.5px;
  color:var(--gris-600);
  background:#fff8e6;
  border:1px solid #f0dfa8;
  border-radius:10px;
  padding:12px 16px;
  margin-top:10px;
}