:root{
  --bg:#071a52;
  --bg-2:#0a2a7a;
  --primary:#2f66ff;
  --primary-2:#1b51e5;
  --card:#0f2f86;
  --card-2:#153aa3;
  --text:#e9f0ff;
  --muted:#b8c7ff;
  --accent:#98b5ff;
  --ring:rgba(255,255,255,.2);
  --shadow: 0 8px 24px rgba(0,0,0,.35);
  /* Altura de tarjetas (ajustable) */
  --card-minh: 450px;   /* escritorio */
  --card-minh-sm: 340px;/* móvil/tablet */
}

*{box-sizing:border-box}

html{
  overflow-x:hidden;
}

body{
  margin:0;
  font-family:Inter,system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;
  color:var(--text);
  background: radial-gradient(1200px 600px at 50% -10%, #2048d4 0%, #0c2a84 30%, #071a52 65%, #06163c 100%) fixed;
  line-height:1.6;
}

.container{width:min(1120px, 92%); margin-inline:auto}

a{color:#fff; text-decoration:none}
a:hover{opacity:.9}
.muted{color:var(--muted)}

.btn{
  display:inline-flex; align-items:center; justify-content:center;
  padding:.8rem 1.2rem; border-radius:.8rem; border:1px solid transparent;
  background:var(--card-2); color:#fff; box-shadow:var(--shadow);
  transition:.25s ease; font-weight:600; letter-spacing:.2px
}
.btn:hover{transform:translateY(-1px)}
.btn-primary{background:linear-gradient(135deg,var(--primary),var(--primary-2))}
.btn-outline{background:transparent;border-color:var(--ring)}
.btn-lg{padding:1rem 1.4rem; font-size:1.05rem}

/* ===== Header y navegación ===== */
.site-header{
  position:sticky; top:0; z-index:50;
  backdrop-filter:saturate(140%) blur(8px);
  background:rgba(7,22,60,.6); border-bottom:1px solid rgba(255,255,255,.06);
}
.header-inner{display:flex; align-items:center; gap:1rem; padding:.8rem 0}
.brand{display:flex; align-items:center; gap:.6rem}
.brand-logo{width:70px; height:50px}
.brand-text{display:flex; flex-direction:column; font-size:.86rem; line-height:1.1}
.brand-text strong{font-weight:800}
.brand-text small{opacity:.7}

.main-nav{
  margin-left:auto;
  display:flex;
  gap:1rem;
  align-items:center;
}
.main-nav a{
  padding:.4rem .6rem;
  border-radius:.6rem;
  font-weight:500;
}
.main-nav a:hover{
  background:rgba(255,255,255,.06);
}

/* enlace activo opcional */
.main-nav a.active{
  background:rgba(255,255,255,.12);
}

.menu-toggle{
  display:none;
  margin-left:.4rem;
  font-size:1.4rem;
  background:transparent;
  border:0;
  color:#fff;
  cursor:pointer;
}

/* ===== Hero ===== */
.hero{ position:relative; overflow:hidden; }
.bg-pattern{ position:absolute; inset:auto 0 -80px 0; width:100%; opacity:.18; pointer-events:none; }
.hero-inner{padding:4.8rem 0 3rem; text-align:center}
.badge{
  display:inline-flex; align-items:center; gap:.5rem;
  padding:.45rem .75rem; border-radius:999px;
  background:rgba(255,255,255,.08); border:1px solid var(--ring);
  font-weight:600; font-size:.9rem
}
.badge-icon{font-size:1rem}
h1{font-size:clamp(2rem, 3.6vw + 1rem, 3.4rem); margin:1rem 0 .4rem; line-height:1.1}
.gradient-text{background:linear-gradient(135deg,#fff,#a9c4ff); -webkit-background-clip:text; background-clip:text; color:transparent}
.lead{max-width:900px; margin-inline:auto; color:var(--muted)}
.hero-cta{margin:1.4rem 0 2.2rem}

/* ===== Stats ===== */
.stats{display:grid; grid-template-columns:repeat(3,1fr); gap:1rem; margin-top:1.2rem}
.stat-card{background:linear-gradient(180deg,var(--card),var(--card-2)); border:1px solid var(--ring); border-radius:1rem; padding:1rem .8rem}
.stat-number{font-size:1.8rem; font-weight:800}
.stat-label{opacity:.8}

/* ===== Secciones generales ===== */
.section{padding:3rem 0 2rem}
.section-header{ text-align:center; margin-bottom:1.6rem}
.section-header h2{font-size:2.1rem; margin:0 0 .3rem}
.section-header p{color:var(--muted); margin:0}

/* ===== Grid de tarjetas de programas ===== */
.grid-cards{
  display:grid;
  grid-template-columns:repeat(2, 1fr);
  gap:1.2rem;
  align-items:stretch;
}

/* ===== Tarjetas de carreras ===== */
.card{
  position:relative;
  background:linear-gradient(180deg,var(--card),var(--card-2));
  border:1px solid var(--ring);
  border-radius:1.2rem;
  padding:1.1rem;
  overflow:hidden;
  min-height:var(--card-minh);
  box-shadow:var(--shadow);
  isolation:isolate;
  transition: all .45s cubic-bezier(.2,.7,.2,1);
}

.card-head{display:flex; align-items:center; gap:.6rem}
.card h3{margin:.2rem 0 .2rem}
.meta{opacity:.85; display:flex; align-items:center; gap:.4rem; margin:.4rem 0 .6rem; font-weight:600}
.chip{
  display:inline-flex; align-items:center; gap:.5rem;
  font-weight:600;
  background:rgba(255,255,255,.06);
  border:1px solid var(--ring);
  border-radius:.8rem; padding:.35rem .6rem
}
.excerpt{color:var(--text); opacity:.95}
.hint{opacity:.6; font-size:.85rem; margin-top:.6rem}

/* Caras con scroll interno para contenido largo */
.card .card-front,
.card .card-back{
  position:absolute;
  inset:0;
  padding:1.1rem;
  transition:transform .45s cubic-bezier(.2,.7,.2,1), opacity .45s;
  overflow:auto;
  -webkit-overflow-scrolling:touch;
  overscroll-behavior:contain;
  scrollbar-gutter:stable both-edges;
}

.card .card-front{z-index:2}
.card .card-back{
  z-index:3;
  transform:translateY(8%);
  opacity:0;
  pointer-events:none;
}

.card:hover .card-back,
.card.is-active .card-back{
  transform:translateY(0);
  opacity:1;
  pointer-events:auto;
}
.card:hover .card-front,
.card.is-active .card-front{
  opacity:0;
}

/* Scrollbar sutil */
.card .card-front::-webkit-scrollbar,
.card .card-back::-webkit-scrollbar{ width:8px; }
.card .card-front::-webkit-scrollbar-thumb,
.card .card-back::-webkit-scrollbar-thumb{
  background: rgba(255,255,255,.25); border-radius:8px;
}
.card .card-front::-webkit-scrollbar-track,
.card .card-back::-webkit-scrollbar-track{
  background: rgba(255,255,255,.06);
}

.list{margin:.0rem 0 0rem}
.list li{margin:.25rem 0}
.mt{margin-top:.6rem}

/* ===== Formulario ===== */
.contact .form-card{
  background:linear-gradient(180deg,var(--card),var(--card-2));
  border:1px solid var(--ring); border-radius:1rem;
  padding:1rem; max-width:680px; margin-inline:auto; box-shadow:var(--shadow)
}
.form-card label{display:block; font-weight:600; margin:.6rem 0 .3rem}
.form-card input, .form-card select, .form-card textarea{
  width:100%; padding:.75rem .8rem; border-radius:.8rem;
  background:#0c2a7f; border:1px solid rgba(255,255,255,.18); color:#fff;
  outline:none; transition:border-color .2s, box-shadow .2s; font-size:1rem
}
.form-card textarea{min-height:200px; resize:vertical}
.form-card input:focus, .form-card select:focus, .form-card textarea:focus{
  border-color:#bcd0ff; box-shadow:0 0 0 4px rgba(188,208,255,.15)
}
.form-card .form-note{color:var(--muted); font-size:.9rem}
.form-alert{margin-top:.6rem; min-height:1.2rem}

/* ===== Footer ===== */
.site-footer{padding:2rem 0 0; background:#0a1f58; border-top:1px solid rgba(255,255,255,.08)}
.footer-grid{display:grid; grid-template-columns:2fr 1fr 1fr; gap:1rem; align-items:start}
.brand-footer .brand-logo{width:75px; height:50px}
.list-plain{list-style:none; padding:0; margin:.1rem 0 0}
.list-plain li{margin:.1rem 0}
.footer-copy{border-top:1px solid rgba(255,255,255,.08); margin-top:1.2rem; padding:.9rem 0; text-align:center; color:var(--muted); font-size:.9rem}

/* ===== Media de las tarjetas con imagen ===== */
.card-media{
  position:absolute;
  inset:0 0 auto 0;
  height:200px;
  overflow:hidden;
  border-radius:1.2rem 1.2rem 0 0;
  border-bottom:1px solid rgba(255,255,255,.08);
  background:#0d2a7c;
}
.card-media img{
  width:100%; height:100%;
  object-fit:cover;
  display:block;
  filter:saturate(110%);
}
.card-media::after{
  content:"";
  position:absolute; inset:0;
  background:linear-gradient(180deg, rgba(0,0,0,.25), rgba(0,0,0,.05) 60%, transparent);
}

/* 👉 Empujar el contenido solo en la cara frontal (por la imagen) */
.card .card-front{
  padding-top: calc(1.1rem + 38%);
}

/* 👉 Ajustar la cara trasera para que no quede tan arriba el texto */
.card .card-back{
  padding-top: 1rem;
}

/* opcional: borde de la imagen al hover */
.card:hover .card-media img{
  transform:scale(1.02);
  transition:transform .45s cubic-bezier(.2,.7,.2,1);
}

/* si una imagen falta, oculta el área visual para que no quede espacio en blanco */
.card-media img[src=""],
.card-media img:not([src]){
  display:none;
}

/* Botón dentro de las cards */
.card-btn{
  margin-top:1rem;
  width:100%;
  justify-content:center;
}

/* Versión pequeña del botón */
.btn-sm{
  padding:.55rem .9rem;
  font-size:.9rem;
  box-shadow:none;
}

/* ===== Tarjetas de la página principal (Carreras / Académica / Cursos) ===== */
.grid-main-links{
  display:grid;
  grid-template-columns:repeat(3, minmax(0, 1fr));
  gap:1.4rem;
  align-items:stretch;
}

.card-link{
  background:linear-gradient(180deg,var(--card),var(--card-2));
  border:1px solid var(--ring);
  border-radius:1.2rem;
  padding:1.2rem 1.3rem;
  box-shadow:var(--shadow);
  display:flex;
  flex-direction:column;
  gap:.6rem;
}

.card-link h3{
  margin:0 0 .4rem;
  font-size:1.25rem;
}

.card-link p{
  margin:0;
  color:var(--muted);
}

.card-link ul{
  margin:.4rem 0 0 1.1rem;
  padding:0;
  color:var(--text);
}

.main-link-btn{
  margin-top:1rem;
  align-self:flex-start;
}

/* ===========================
   Ajustes para vista móvil
   =========================== */
@media (max-width: 920px){

  .grid-cards{
    grid-template-columns:1fr;
  }

  .stats{
    grid-template-columns:1fr;
    gap:.8rem;
  }

  .grid-main-links{
    grid-template-columns:1fr;
  }

  /* Menú móvil tipo panel */
  .main-nav{
    position:fixed;
    inset:56px 0 0 0;           /* debajo del header */
    background:rgba(6, 22, 60, .96);
    backdrop-filter:blur(10px);
    flex-direction:column;
    align-items:flex-start;
    padding:1rem 1.2rem 2rem;
    gap:.6rem;
    transform:translateY(-10px);
    opacity:0;
    pointer-events:none;
    transition:opacity .25s ease, transform .25s ease;
    z-index:40;
  }

  .main-nav a{
    width:100%;
    padding:.7rem .6rem;
    border-radius:.6rem;
  }

  .main-nav.open{
    opacity:1;
    pointer-events:auto;
    transform:translateY(0);
  }

  .menu-toggle{
    display:inline-block;
  }

  body.nav-open{
    overflow:hidden;
  }
}

@media (max-width: 640px){

  /* Tarjetas un poco más altas para que quepa mejor el contenido */
  .card{
    min-height: 420px;
  }

  /* La imagen ocupa menos alto, para que el título se vea sin hacer scroll */
  .card-media{
    height: 95px;
  }

  /* Bajamos el padding-top para que el h3 quede más arriba */
  .card .card-front{
    padding-top: calc(1.1rem + 28%);
  }
}
/* ===== Extras visuales para páginas nuevas ===== */

.hero-subtitle{
  margin:0 0 .4rem;
  font-size:.9rem;
  text-transform:uppercase;
  letter-spacing:.12em;
  color:var(--accent);
  font-weight:600;
}

/* KPIs bajo el hero */
.kpi-row{
  display:grid;
  grid-template-columns:repeat(3, minmax(0,1fr));
  gap:1rem;
  margin-top:1.8rem;
}
.kpi-card{
  background:linear-gradient(180deg, rgba(13,42,124,.9), rgba(10,31,88,.9));
  border-radius:1rem;
  border:1px solid rgba(255,255,255,.08);
  padding:.8rem .9rem;
}
.kpi-label{
  font-size:.8rem;
  text-transform:uppercase;
  letter-spacing:.08em;
  color:var(--muted);
}
.kpi-value{
  display:block;
  font-size:1.5rem;
  font-weight:800;
}
.kpi-card small{
  display:block;
  margin-top:.2rem;
  font-size:.8rem;
  color:var(--muted);
}

/* Pills / chips */
.pill{
  display:inline-flex;
  align-items:center;
  padding:.25rem .7rem;
  border-radius:999px;
  font-size:.78rem;
  font-weight:600;
  border:1px solid rgba(255,255,255,.18);
  background:rgba(7,22,60,.7);
  color:var(--accent);
}
.pill-primary{
  border-color:rgba(151,190,255,.9);
  background:rgba(47,102,255,.15);
  color:#dbe5ff;
}
.pill-secondary{
  border-color:rgba(255,255,255,.6);
  background:rgba(255,255,255,.08);
  color:#ffffff;
}
.pill-outline{
  background:transparent;
}
.pill-row{
  display:flex;
  flex-wrap:wrap;
  gap:.5rem;
  justify-content:center;
  margin:1rem 0 2rem;
}

/* Icono circular para tarjetas principales */
.icon-circle{
  width:40px;
  height:40px;
  border-radius:50%;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  background:rgba(0,0,0,.25);
  margin-bottom:.5rem;
}

/* Tarjetas de beneficios */
.benefits-grid{
  display:grid;
  grid-template-columns:repeat(3, minmax(0,1fr));
  gap:1.2rem;
}
.benefits-grid-2{
  display:grid;
  grid-template-columns:repeat(2, minmax(0,1fr));
  gap:1.2rem;
}
.benefit-card{
  background:linear-gradient(180deg, rgba(15,47,134,.9), rgba(10,31,88,.9));
  border-radius:1.1rem;
  border:1px solid rgba(255,255,255,.08);
  padding:1rem 1.1rem;
}
.benefit-card h3{
  margin:.1rem 0 .3rem;
}
.benefit-card p{
  margin:0;
  color:var(--muted);
}

/* Secciones alternas en bloques */
.section-alt{
  background:linear-gradient(180deg, rgba(12,42,127,.95), rgba(7,26,82,.95));
  border-radius:1.3rem;
  border:1px solid rgba(255,255,255,.08);
  padding:1.4rem 1.5rem;
  display:flex;             /* 🔹 convierte en columna flexible */
  flex-direction:column;
  height:100%;              /* 🔹 ocupa todo el alto que le dé el grid */
}

.section-alt-center{
  background:linear-gradient(180deg, rgba(12,42,127,.95), rgba(7,26,82,.95));
  border-radius:1.3rem;
  border:1px solid rgba(255,255,255,.08);
  padding:1.4rem 1.5rem;
  display:flex;
  flex-direction:column;
  height:100%;
  width:70%;

  margin:0 auto;       /* ⭐ Centra horizontalmente */
}


.section-alt h2,
.section-alt h3{
  margin-top:0;
}

/* pequeño ajuste de espacios internos */
.section-alt p:last-child,
.section-alt ul:last-child,
.section-alt ol:last-child{
  margin-bottom:0;
}


/* Grid 2 columnas genérico */
.grid-2{
  display:grid;
  grid-template-columns:2fr 1.4fr;
  gap:1.6rem;
  align-items:stretch;   /* 🔹 importante para igualar alturas */
}


/* Plan de estudios */
.plan-grid{
  display:grid;
  grid-template-columns:repeat(2, minmax(0,1fr));
  gap:1rem;
}
.plan-item{
  background:linear-gradient(180deg, rgba(12,42,127,.9), rgba(7,26,82,.95));
  border-radius:1rem;
  border:1px solid rgba(255,255,255,.08);
  padding:.9rem 1rem;
}
.plan-item h3{
  margin:0 0 .3rem;
  font-size:1.02rem;
}
.plan-item p{
  margin:0;
  color:var(--muted);
}

/* Cursos cortos: grid y cards */
.course-grid{
  display:grid;
  grid-template-columns:repeat(3, minmax(0,1fr));
  gap:1.2rem;
}
.course-card{
  background:linear-gradient(180deg,var(--card),var(--card-2));
  border-radius:1.1rem;
  border:1px solid var(--ring);
  padding:1rem 1rem 1.1rem;
  box-shadow:var(--shadow);
  display:flex;
  flex-direction:column;
  gap:.4rem;
}
.course-header{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:.6rem;
}
.course-card h3{
  margin:.1rem 0;
  font-size:1.05rem;
}
.course-meta{
  margin:.1rem 0 .2rem;
  font-size:.9rem;
  color:var(--muted);
}
.course-actions{
  margin-top:.4rem;
  display:flex;
  gap:.4rem;
  flex-wrap:wrap;
}

/* RESPONSIVE extra */
@media (max-width: 920px){
  .kpi-row{
    grid-template-columns:1fr;
  }
  .benefits-grid{
    grid-template-columns:1fr;
  }
  .grid-2{
    grid-template-columns:1fr;
  }
  .plan-grid{
    grid-template-columns:1fr;
  }
  .course-grid{
    grid-template-columns:1fr;
  }
}

@media (max-width: 640px){
  .hero-inner{
    padding:3.5rem 0 2.5rem;
  }
}
/* =======================
      FOOTER OPTIMIZADO
   ======================= */

.site-footer{
  background:#06163c;
  padding:3rem 0 0;
  border-top:1px solid rgba(255,255,255,.1);
  margin-top:3rem;
}

.footer-grid{
  display:grid;
  grid-template-columns:2fr 1fr 1fr;
  gap:2rem;
}

.footer-col h4{
  margin:0 0 .6rem;
  font-size:1.05rem;
  font-weight:700;
  color:#fff;
}

.footer-logo{
  width:80px;
  height:auto;
  margin-right:.6rem;
}

.footer-desc{
  margin-top:.8rem;
  font-size:.9rem;
  line-height:1.5;
  color:var(--muted);
  max-width:300px;
}

.footer-list{
  margin:0;
  padding:0;
}

.footer-list li{
  margin:.25rem 0;
  color:var(--muted);
  font-size:.92rem;
}

.footer-list a{
  color:var(--accent);
}

.footer-list a:hover{
  opacity:.85;
}

.footer-copy{
  margin-top:2rem;
  padding:1rem 0;
  border-top:1px solid rgba(255,255,255,.08);
  text-align:center;
  font-size:.85rem;
  color:var(--muted);
}

/* Responsive */
@media (max-width:920px){
  .footer-grid{
    grid-template-columns:1fr;
    text-align:center;
  }
  .footer-col{
    margin-bottom:1.5rem;
  }
  .footer-desc{
    max-width:none;
    margin-inline:auto;
  }
}