/* ==========================================================================
   U.E. San Vitaliano · sitio institucional
   ========================================================================== */

:root {
    --azul: #14294A;
    --azul-2: #1E3C6B;
    --oro: #C9A227;
    --oro-claro: #E7CF7B;
    --crema: #F7F5F0;
    --blanco: #fff;
    --texto: #1B2430;
    --gris: #5F6B7A;
    --linea: #E4E2D8;
    --serif: Georgia, "Times New Roman", serif;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
    font-family: "Segoe UI", system-ui, -apple-system, sans-serif;
    color: var(--texto); background: var(--blanco); line-height: 1.65; font-size: 16px;
    -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
.wrap { width: 100%; max-width: 1140px; margin: 0 auto; padding: 0 22px; }

h1, h2, h3 { font-family: var(--serif); font-weight: 400; line-height: 1.15; letter-spacing: -.01em; }
h1 { font-size: clamp(2.2rem, 5vw, 3.8rem); }
h2 { font-size: clamp(1.6rem, 3vw, 2.5rem); }

.kicker { font-size: .72rem; letter-spacing: .26em; text-transform: uppercase; color: var(--oro); font-weight: 600; }
.lead { color: var(--gris); font-size: 1.05rem; max-width: 62ch; }

/* ---------- cabecera ---------- */
.cab {
    position: sticky; top: 0; z-index: 50; background: rgba(20, 41, 74, .97);
    backdrop-filter: blur(8px); color: #fff;
}
.cab__fila { display: flex; align-items: center; justify-content: space-between; gap: 20px; height: 74px; }
.marca { display: flex; align-items: center; gap: 12px; }
.marca .escudo {
    width: 42px; height: 42px; border-radius: 11px; background: var(--oro); color: var(--azul);
    display: flex; align-items: center; justify-content: center; font-weight: 800; font-size: 17px;
}
.marca b { font-family: var(--serif); font-size: 1.25rem; display: block; line-height: 1.1; }
.marca span { font-size: .62rem; letter-spacing: .22em; text-transform: uppercase; color: var(--oro-claro); }

.nav { display: flex; align-items: center; gap: 26px; }
.nav a { font-size: .82rem; letter-spacing: .1em; text-transform: uppercase; color: rgba(255,255,255,.82); }
.nav a:hover { color: var(--oro-claro); }
.btn {
    display: inline-flex; align-items: center; justify-content: center; gap: 9px;
    padding: 13px 24px; border-radius: 8px; font-size: .82rem; font-weight: 700;
    letter-spacing: .08em; text-transform: uppercase; transition: .18s;
}
.btn--oro { background: var(--oro); color: #1C2635; }
.btn--oro:hover { background: var(--oro-claro); }
.btn--linea { border: 1px solid rgba(255,255,255,.35); color: #fff; }
.btn--linea:hover { background: rgba(255,255,255,.1); }
.btn--azul { background: var(--azul); color: #fff; }
.btn--azul:hover { background: var(--azul-2); }
.btn--borde { border: 1px solid var(--linea); color: var(--texto); }
.menu-btn { display: none; font-size: 1.5rem; color: #fff; }

/* ---------- portada ---------- */
.portada { position: relative; background: var(--azul); color: #fff; overflow: hidden; }
.portada__foto { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; opacity: .38; }
.portada::after {
    content: ""; position: absolute; inset: 0;
    background: linear-gradient(100deg, rgba(20,41,74,.95) 0%, rgba(20,41,74,.72) 55%, rgba(20,41,74,.35) 100%);
}
.portada__cuerpo { position: relative; z-index: 2; padding: clamp(60px, 9vw, 110px) 0; max-width: 46rem; }
.portada h1 { margin: 16px 0 18px; }
.portada h1 span { color: var(--oro-claro); }
.portada p { color: #C9D6E8; font-size: 1.08rem; max-width: 46ch; margin-bottom: 30px; }
.portada__botones { display: flex; gap: 12px; flex-wrap: wrap; }
.portada__datos {
    position: relative; z-index: 2; border-top: 1px solid rgba(255,255,255,.16);
    display: flex; gap: 30px; flex-wrap: wrap; padding: 18px 0;
    font-size: .8rem; letter-spacing: .1em; text-transform: uppercase; color: #B9C6DA;
}
.portada__datos b { color: var(--oro-claro); }

/* ---------- franja de datos ---------- */
.cifras { background: var(--crema); border-bottom: 1px solid var(--linea); }
.cifras__fila { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; padding: 26px 0; }
.cifra b { display: block; font-family: var(--serif); font-size: 1.9rem; color: var(--azul); line-height: 1.1; }
.cifra span { font-size: .78rem; letter-spacing: .1em; text-transform: uppercase; color: var(--gris); }

/* ---------- secciones ---------- */
.seccion { padding: clamp(56px, 8vw, 96px) 0; }
.seccion--crema { background: var(--crema); }
.seccion--azul { background: var(--azul); color: #fff; }
.seccion--azul .lead { color: #C9D6E8; }
.cab-seccion { margin-bottom: 38px; max-width: 60ch; }
.cab-seccion h2 { margin-top: 12px; }

/* niveles */
.niveles { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.nivel {
    background: #fff; border: 1px solid var(--linea); border-radius: 12px; padding: 26px 24px 28px;
    display: flex; flex-direction: column; transition: .2s;
}
.nivel:hover { border-color: var(--oro); transform: translateY(-2px); box-shadow: 0 16px 40px rgba(20,41,74,.08); }
.nivel__edad { font-size: .7rem; letter-spacing: .18em; text-transform: uppercase; color: var(--oro); margin-bottom: 8px; }
.nivel h3 { font-size: 1.45rem; margin-bottom: 10px; color: var(--azul); }
.nivel p { color: var(--gris); font-size: .93rem; }
.nivel ul { list-style: none; margin-top: 14px; display: grid; gap: 7px; }
.nivel li { font-size: .88rem; color: #3D4A5C; padding-left: 18px; position: relative; }
.nivel li::before { content: ""; position: absolute; left: 0; top: 8px; width: 7px; height: 7px; border-radius: 50%; background: var(--oro); }

/* razones */
.razones { display: grid; grid-template-columns: repeat(2, 1fr); gap: 26px 40px; }
.razon h3 { font-size: 1.15rem; margin-bottom: 6px; color: var(--azul); }
.razon p { color: var(--gris); font-size: .95rem; }
.razon__num { font-family: var(--serif); font-size: .9rem; color: var(--oro); letter-spacing: .1em; }

/* galería */
.galeria { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
.galeria figure { position: relative; overflow: hidden; border-radius: 10px; }
.galeria img { width: 100%; height: 260px; object-fit: cover; transition: transform .5s ease; }
.galeria figure:hover img { transform: scale(1.04); }
.galeria figcaption {
    position: absolute; left: 0; right: 0; bottom: 0; padding: 14px 16px;
    background: linear-gradient(transparent, rgba(20,41,74,.85)); color: #fff;
    font-size: .8rem; letter-spacing: .06em;
}

/* admisiones */
.admisiones { display: grid; grid-template-columns: 1.1fr .9fr; gap: 44px; align-items: center; }
.pasos { list-style: none; display: grid; gap: 16px; margin-top: 24px; }
.pasos li { display: flex; gap: 14px; align-items: flex-start; }
.pasos b {
    flex: 0 0 32px; height: 32px; border-radius: 50%; background: rgba(201,162,39,.16);
    color: var(--oro-claro); display: flex; align-items: center; justify-content: center;
    font-family: var(--serif); font-size: 1rem;
}
.pasos span { color: #C9D6E8; font-size: .95rem; }
.tarjeta-contacto { background: #fff; border-radius: 14px; padding: 30px 28px; color: var(--texto); box-shadow: 0 20px 60px rgba(0,0,0,.18); }
.tarjeta-contacto h3 { font-size: 1.3rem; margin-bottom: 6px; color: var(--azul); }
.tarjeta-contacto p { color: var(--gris); font-size: .9rem; margin-bottom: 18px; }
.dato { display: flex; gap: 12px; padding: 9px 0; border-bottom: 1px solid var(--linea); font-size: .92rem; }
.dato:last-of-type { border: 0; }
.dato b { flex: 0 0 92px; font-size: .72rem; letter-spacing: .1em; text-transform: uppercase; color: var(--gris); padding-top: 3px; }

/* pie */
.pie { background: #0E1B31; color: #93A3BA; padding: 46px 0 26px; font-size: .86rem; }
.pie__grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 30px; padding-bottom: 26px; border-bottom: 1px solid rgba(255,255,255,.1); }
.pie .marca b { color: #fff; }
.pie h4 { color: #fff; font-size: .72rem; letter-spacing: .18em; text-transform: uppercase; margin-bottom: 12px; font-family: inherit; }
.pie ul { list-style: none; display: grid; gap: 7px; }
.pie a:hover { color: var(--oro-claro); }
.pie__legal { padding-top: 18px; display: flex; justify-content: space-between; gap: 14px; flex-wrap: wrap; font-size: .75rem; color: #6F7F97; }

/* flotante whatsapp */
.wa {
    position: fixed; right: 18px; bottom: 18px; z-index: 60; width: 54px; height: 54px;
    border-radius: 50%; background: #25D366; display: flex; align-items: center; justify-content: center;
    box-shadow: 0 10px 30px rgba(0,0,0,.25);
}
.wa svg { width: 28px; height: 28px; fill: #fff; }


.cab__acciones { display: flex; align-items: center; gap: 10px; }
.titulo-claro { margin: 12px 0 16px; color: #fff; }
.paso-titulo { background: none; color: #fff; display: inline; width: auto; height: auto; }
.btn--ancho { width: 100%; }
.mt-2 { margin-top: 10px; }
.mt-3 { margin-top: 18px; }
.pie__marca { margin-bottom: 12px; }
.pie__lema { display: block; font-size: .62rem; letter-spacing: .2em; text-transform: uppercase; color: var(--oro); }
.enlace-oro { color: var(--oro-claro); }

@media (max-width: 940px) {
    .nav { display: none; }
    .menu-btn { display: block; }
    .nav.abierto {
        display: flex; position: absolute; top: 74px; left: 0; right: 0;
        flex-direction: column; background: var(--azul); padding: 12px 22px 20px; gap: 4px;
        border-top: 1px solid rgba(255,255,255,.12);
    }
    .nav.abierto a { padding: 11px 0; width: 100%; }
    .cifras__fila { grid-template-columns: repeat(2, 1fr); }
    .niveles, .razones, .galeria { grid-template-columns: 1fr 1fr; }
    .admisiones { grid-template-columns: 1fr; }
}

@media (max-width: 620px) {
    .cab__fila { height: 64px; }
    .nav.abierto { top: 64px; }
    .marca b { font-size: 1.05rem; }
    .marca span { font-size: .55rem; }
    .niveles, .razones, .galeria { grid-template-columns: 1fr; }
    .galeria img { height: 220px; }
    .portada__datos { gap: 14px; font-size: .72rem; }
    .pie__grid { grid-template-columns: 1fr; }
}