/*
 * Sitio publico de Escuela Nueva Austral: portada y una pagina por nivel.
 * Tipografia Barlow, azul y rojo institucionales; sin recursos externos.
 */

@font-face { font-family: 'Barlow ENA'; src: url('/assets/fonts/ena/barlow-400.woff2') format('woff2'); font-weight: 400; font-display: swap; }
@font-face { font-family: 'Barlow ENA'; src: url('/assets/fonts/ena/barlow-500.woff2') format('woff2'); font-weight: 500; font-display: swap; }
@font-face { font-family: 'Barlow ENA'; src: url('/assets/fonts/ena/barlow-600.woff2') format('woff2'); font-weight: 600; font-display: swap; }
@font-face { font-family: 'Barlow ENA'; src: url('/assets/fonts/ena/barlow-700.woff2') format('woff2'); font-weight: 700; font-display: swap; }

:root {
  --navy: #0f2340;
  --navy-2: #172f54;
  --rojo: #a5121c;
  --tinta: #1c2433;
  --gris: #5b6474;
  --linea: #e3e6ec;
  --fondo-gris: #f4f5f8;
  --radio: 14px;
  --sombra: 0 10px 30px rgba(15, 35, 64, .10);
  --cabecera: 72px;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: calc(var(--cabecera) + 12px); }
body.sitio { margin: 0; font-family: 'Barlow ENA', 'Segoe UI', system-ui, sans-serif; font-size: 17px; line-height: 1.6; color: var(--tinta); background: #fff; -webkit-font-smoothing: antialiased; }
img { max-width: 100%; display: block; }
a { color: inherit; }
h1, h2, h3, h4 { margin: 0; line-height: 1.15; }
p { margin: 0; }

.contenedor { width: 100%; max-width: 1180px; margin: 0 auto; padding: 0 24px; }
.saltar { position: absolute; left: -999px; top: 8px; padding: 8px 14px; background: #fff; color: var(--navy); z-index: 100; border-radius: 6px; }
.saltar:focus { left: 8px; }
:focus-visible { outline: 3px solid #f2b705; outline-offset: 3px; }

/* ---------------------------------------------------------------- cabecera */
.cabecera { position: fixed; inset: 0 0 auto 0; height: var(--cabecera); z-index: 50; color: #fff; transition: background .25s ease, box-shadow .25s ease, color .25s ease; }
.cabecera--solida, body:not(.sitio--portada) .cabecera { background: rgba(255, 255, 255, .97); color: var(--navy); box-shadow: 0 1px 0 var(--linea); }
.cabecera__fila { height: 100%; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.marca { display: flex; align-items: center; gap: 12px; text-decoration: none; }
.marca img { height: 40px; width: auto; }
.cabecera:not(.cabecera--solida) .marca img { filter: brightness(0) invert(1); }
body:not(.sitio--portada) .cabecera .marca img { filter: none; }
.marca__texto { display: flex; flex-direction: column; line-height: 1.15; }
.marca__nombre { font-weight: 700; font-size: 18px; letter-spacing: .01em; }
.marca__lugar { font-size: 12px; letter-spacing: .14em; text-transform: uppercase; opacity: .75; }
.nav { display: flex; align-items: center; gap: 28px; }
.nav ul { display: flex; gap: 22px; list-style: none; margin: 0; padding: 0; }
.nav a { text-decoration: none; font-weight: 500; font-size: 16px; }
.nav ul a { position: relative; padding: 6px 0; }
.nav ul a::after { content: ''; position: absolute; left: 0; right: 0; bottom: 0; height: 2px; background: var(--rojo); transform: scaleX(0); transform-origin: left; transition: transform .2s ease; }
.nav ul a:hover::after, .nav ul a[aria-current="page"]::after { transform: scaleX(1); }
.menu-boton { display: none; width: 44px; height: 44px; border: 0; background: transparent; color: inherit; cursor: pointer; padding: 10px; }
.menu-boton span { display: block; height: 2px; background: currentColor; margin: 5px 0; border-radius: 2px; }

/* ---------------------------------------------------------------- botones */
.boton { display: inline-flex; align-items: center; justify-content: center; gap: 8px; min-height: 48px; padding: 0 22px; border-radius: 999px; font-weight: 600; font-size: 16px; text-decoration: none; border: 2px solid transparent; transition: transform .15s ease, background .2s ease, color .2s ease, border-color .2s ease; }
.boton:hover { transform: translateY(-1px); }
.boton--chico { min-height: 40px; padding: 0 18px; font-size: 15px; }
.boton--borde { border-color: currentColor; }
.boton--borde:hover { background: var(--navy); border-color: var(--navy); color: #fff; }
.cabecera:not(.cabecera--solida) .boton--borde:hover { background: #fff; color: var(--navy); border-color: #fff; }
body:not(.sitio--portada) .cabecera .boton--borde:hover { background: var(--navy); color: #fff; }
.boton--claro { background: #fff; color: var(--navy); }
.boton--claro:hover { background: #f1f3f7; }
.boton--borde-claro { border-color: rgba(255, 255, 255, .7); color: #fff; }
.boton--borde-claro:hover { background: rgba(255, 255, 255, .12); border-color: #fff; }
.enlace-flecha { display: inline-flex; align-items: center; gap: 6px; margin-top: auto; padding-top: 18px; font-weight: 600; color: var(--acento, var(--rojo)); text-decoration: none; }
.enlace-flecha::after { content: '→'; transition: transform .2s ease; }
.enlace-flecha:hover::after, .nivel--enlace:hover .enlace-flecha::after { transform: translateX(4px); }

/* ---------------------------------------------------------------- textos */
.volanta { font-size: 13px; font-weight: 600; letter-spacing: .16em; text-transform: uppercase; color: var(--rojo); margin-bottom: 12px; }
.volanta--clara { color: rgba(255, 255, 255, .8); }
.titulo-seccion { font-size: clamp(28px, 3.4vw, 40px); font-weight: 700; color: var(--navy); letter-spacing: -.01em; margin-bottom: 28px; }
.titulo-seccion--claro { color: #fff; }
.titulo-seccion--bajada { font-size: clamp(22px, 2.3vw, 28px); font-weight: 600; line-height: 1.3; }

/* ---------------------------------------------------------------- portada */
.portada { position: relative; min-height: 100vh; display: flex; align-items: flex-end; color: #fff; padding: calc(var(--cabecera) + 48px) 0 64px;
  background:
    radial-gradient(1100px 600px at 85% 10%, rgba(165, 18, 28, .35), transparent 60%),
    radial-gradient(900px 600px at 0% 100%, rgba(43, 76, 140, .55), transparent 60%),
    linear-gradient(160deg, #0b1a31 0%, var(--navy) 55%, #142c52 100%); }
.portada::before { content: ''; position: absolute; inset: 0; background: url('/images/ena-owl.svg') no-repeat right 6% top 18% / auto 62%; opacity: .07; filter: brightness(0) invert(1); pointer-events: none; }
.portada--foto { background: linear-gradient(180deg, rgba(11, 26, 49, .35) 0%, rgba(11, 26, 49, .55) 45%, rgba(11, 26, 49, .92) 100%), var(--portada-imagen) center / cover no-repeat; }
.portada--foto::before { display: none; }
.portada__contenido { position: relative; }
.portada__titulo { font-size: clamp(44px, 7vw, 84px); font-weight: 700; letter-spacing: -.02em; max-width: 14ch; }
.portada__bajada { margin-top: 16px; font-size: clamp(19px, 2vw, 23px); color: rgba(255, 255, 255, .86); max-width: 40ch; }
.accesos { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; margin-top: 48px; }
.acceso { position: relative; display: flex; flex-direction: column; gap: 6px; padding: 24px 24px 22px; border-radius: var(--radio); text-decoration: none; color: #fff;
  background: rgba(255, 255, 255, .08); border: 1px solid rgba(255, 255, 255, .18); backdrop-filter: blur(6px); -webkit-backdrop-filter: blur(6px);
  overflow: hidden; transition: transform .2s ease, background .2s ease, border-color .2s ease; }
.acceso::before { content: ''; position: absolute; left: 0; top: 0; bottom: 0; width: 4px; background: var(--acento); transition: width .25s ease; }
.acceso:hover { transform: translateY(-4px); background: rgba(255, 255, 255, .14); border-color: rgba(255, 255, 255, .35); }
.acceso:hover::before { width: 8px; }
.acceso__orden { font-size: 12px; font-weight: 600; letter-spacing: .16em; text-transform: uppercase; opacity: .75; }
.acceso__nombre { font-size: 30px; font-weight: 700; }
.acceso__texto { font-size: 16px; color: rgba(255, 255, 255, .82); line-height: 1.45; }
.acceso__ir { display: inline-flex; align-items: center; gap: 6px; margin-top: 12px; font-weight: 600; font-size: 15px; }
.acceso__ir svg { width: 18px; height: 18px; transition: transform .2s ease; }
.acceso:hover .acceso__ir svg { transform: translateX(4px); }

/* ---------------------------------------------------------------- secciones */
.seccion { padding: 96px 0; }
.seccion--gris { background: var(--fondo-gris); }
.seccion--oscura { background: var(--navy); color: #fff; }
.institucion { display: grid; grid-template-columns: 1fr 1.1fr; gap: 56px; align-items: start; }
.institucion__texto p { font-size: 19px; color: var(--gris); }
.cifras { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin: 32px 0 0; }
.cifras div { border-top: 2px solid var(--navy); padding-top: 12px; }
.cifras dt { font-size: 14px; color: var(--gris); }
.cifras dd { margin: 4px 0 0; font-size: 30px; font-weight: 700; color: var(--navy); }

.niveles { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.niveles--dos { grid-template-columns: repeat(2, 1fr); }
.nivel { display: flex; flex-direction: column; padding: 30px 28px 26px; background: #fff; border-radius: var(--radio); border-top: 4px solid var(--acento); box-shadow: var(--sombra); text-decoration: none; transition: transform .2s ease, box-shadow .2s ease; }
.nivel:hover { transform: translateY(-4px); box-shadow: 0 16px 40px rgba(15, 35, 64, .14); }
.nivel__orden { font-size: 12px; font-weight: 600; letter-spacing: .16em; text-transform: uppercase; color: var(--acento); }
.nivel__nombre { margin-top: 6px; font-size: 28px; font-weight: 700; color: var(--navy); }
.nivel__resumen { margin-top: 10px; color: var(--gris); }
.nivel__lista { margin: 16px 0 0; padding: 0; list-style: none; }
.nivel__lista li { position: relative; padding: 6px 0 6px 22px; border-top: 1px solid var(--linea); font-size: 16px; }
.nivel__lista li::before { content: ''; position: absolute; left: 2px; top: 15px; width: 8px; height: 8px; border-radius: 50%; background: var(--acento); }

.banda { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 28px; padding: 44px 48px; border-radius: 20px; color: #fff;
  background: linear-gradient(135deg, var(--rojo) 0%, #7d0d15 100%); box-shadow: 0 20px 40px rgba(165, 18, 28, .22); }
.banda__titulo { font-size: clamp(28px, 3vw, 38px); font-weight: 700; }
.banda__texto { margin-top: 10px; max-width: 52ch; color: rgba(255, 255, 255, .88); }
.banda__botones { display: flex; flex-wrap: wrap; gap: 12px; }

.contacto { display: grid; grid-template-columns: 1.1fr 1fr; gap: 48px; align-items: center; }
.datos { margin: 0; display: grid; gap: 4px; }
.datos div { display: grid; grid-template-columns: 120px 1fr; gap: 12px; padding: 14px 0; border-bottom: 1px solid var(--linea); }
.datos dt { color: var(--gris); font-size: 15px; }
.datos dd { margin: 0; font-weight: 600; color: var(--navy); }
.datos a { text-decoration: none; }
.datos a:hover { color: var(--rojo); }
.mapa { position: relative; display: flex; flex-direction: column; align-items: flex-start; justify-content: flex-end; gap: 4px; min-height: 280px; padding: 28px; border-radius: 20px; text-decoration: none; color: #fff; overflow: hidden;
  background:
    linear-gradient(0deg, rgba(15, 35, 64, .92), rgba(15, 35, 64, .55)),
    repeating-linear-gradient(0deg, transparent 0 38px, rgba(255, 255, 255, .07) 38px 40px),
    repeating-linear-gradient(90deg, transparent 0 58px, rgba(255, 255, 255, .07) 58px 60px),
    linear-gradient(135deg, #1d3b66, #0f2340);
  transition: transform .2s ease; }
.mapa:hover { transform: translateY(-3px); }
.mapa__pin { position: absolute; top: 26px; right: 26px; width: 52px; height: 52px; display: grid; place-items: center; border-radius: 50%; background: var(--rojo); }
.mapa__pin svg { width: 26px; height: 26px; }
.mapa__direccion { font-size: 26px; font-weight: 700; }
.mapa__ciudad { color: rgba(255, 255, 255, .8); }
.mapa__ir { margin-top: 10px; font-weight: 600; border-bottom: 2px solid rgba(255, 255, 255, .5); }

/* ---------------------------------------------------------------- pagina de nivel */
.portada-nivel { position: relative; padding: calc(var(--cabecera) + 48px) 0 80px; color: #fff; overflow: hidden;
  background: radial-gradient(800px 500px at 90% 0%, color-mix(in srgb, var(--acento) 70%, transparent), transparent 70%), linear-gradient(150deg, var(--navy) 0%, var(--navy-2) 100%); }
.portada-nivel::before { content: ''; position: absolute; inset: 0; background: url('/images/ena-owl.svg') no-repeat right 4% bottom -10% / auto 85%; opacity: .06; filter: brightness(0) invert(1); pointer-events: none; }
.portada-nivel .contenedor { position: relative; }
.selector { display: inline-flex; gap: 4px; padding: 5px; margin-bottom: 36px; border-radius: 999px; background: rgba(255, 255, 255, .1); border: 1px solid rgba(255, 255, 255, .18); }
.selector__opcion { padding: 9px 20px; border-radius: 999px; text-decoration: none; font-weight: 600; font-size: 15px; color: rgba(255, 255, 255, .85); transition: background .2s ease, color .2s ease; }
.selector__opcion:hover { background: rgba(255, 255, 255, .12); color: #fff; }
.selector__opcion--activa { background: #fff; color: var(--navy); }
.portada-nivel__titulo { font-size: clamp(40px, 6vw, 72px); font-weight: 700; letter-spacing: -.02em; }
.portada-nivel__bajada { margin-top: 14px; max-width: 46ch; font-size: clamp(19px, 2vw, 23px); color: rgba(255, 255, 255, .86); }
.portada-nivel__botones { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 32px; }
.destacados { display: grid; gap: 16px; }
.destacado { padding: 22px 24px; border-radius: var(--radio); background: var(--fondo-gris); border-left: 4px solid var(--acento); }
.destacado h3 { font-size: 20px; color: var(--navy); }
.destacado p { margin-top: 6px; color: var(--gris); }

.carrera__encabezado { display: grid; grid-template-columns: 1.1fr 1fr; gap: 48px; align-items: center; margin-bottom: 56px; }
.carrera__titulo-obtenido { font-size: 18px; color: rgba(255, 255, 255, .88); }
.carrera__titulo-obtenido span { color: rgba(255, 255, 255, .6); }
.carrera__imagen { width: 100%; height: auto; aspect-ratio: 16 / 10; object-fit: cover; border-radius: 18px; box-shadow: 0 24px 48px rgba(0, 0, 0, .35); }
.carrera__subtitulo { font-size: 22px; margin-bottom: 20px; }
.materias { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; list-style: none; margin: 0; padding: 0; }
.materia { padding: 22px; border-radius: var(--radio); background: rgba(255, 255, 255, .06); border: 1px solid rgba(255, 255, 255, .12); transition: background .2s ease, transform .2s ease; }
.materia:hover { background: rgba(255, 255, 255, .1); transform: translateY(-2px); }
.materia h4 { font-size: 18px; }
.materia p { margin-top: 8px; font-size: 15px; color: rgba(255, 255, 255, .75); line-height: 1.5; }
.carrera__nota { margin-top: 32px; font-size: 14px; color: rgba(255, 255, 255, .65); max-width: 80ch; }

/* ---------------------------------------------------------------- pie */
.pie { background: #0a1830; color: rgba(255, 255, 255, .78); padding: 64px 0 0; }
.pie__grilla { display: grid; grid-template-columns: 1.4fr 1fr 1.2fr; gap: 40px; }
.pie__logo { height: 54px; width: auto; filter: brightness(0) invert(1); opacity: .92; }
.pie__texto { margin-top: 16px; font-size: 15px; }
.pie__titulo { font-weight: 600; color: #fff; margin-bottom: 12px; }
.pie__lista { list-style: none; margin: 0; padding: 0; display: grid; gap: 8px; font-size: 15px; }
.pie__lista a { text-decoration: none; }
.pie__lista a:hover { color: #fff; text-decoration: underline; }
.pie__legal { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 12px; margin-top: 48px; padding: 20px 24px; border-top: 1px solid rgba(255, 255, 255, .1); font-size: 14px; }
.pie__legal a { text-decoration: none; }
.pie__legal a:hover { color: #fff; }

/* ---------------------------------------------------------------- animacion */
.aparece { opacity: 0; transform: translateY(18px); transition: opacity .6s ease, transform .6s ease; }
.aparece--visible { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .aparece { opacity: 1; transform: none; transition: none; }
  * { transition: none !important; }
}

/* ---------------------------------------------------------------- responsive */
@media (max-width: 1024px) {
  .materias { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 900px) {
  .menu-boton { display: block; }
  .nav { position: absolute; top: var(--cabecera); left: 0; right: 0; flex-direction: column; align-items: stretch; gap: 0; padding: 12px 24px 24px; background: #fff; color: var(--navy); box-shadow: 0 12px 24px rgba(15, 35, 64, .12); display: none; }
  .nav--abierta { display: flex; }
  .nav ul { flex-direction: column; gap: 0; }
  .nav ul a { display: block; padding: 14px 0; border-bottom: 1px solid var(--linea); }
  .nav ul a::after { display: none; }
  .nav .boton { margin-top: 16px; }
  .nav .boton--borde:hover { background: var(--navy); color: #fff; }
  .accesos, .niveles, .niveles--dos { grid-template-columns: 1fr; }
  .institucion, .contacto, .carrera__encabezado, .pie__grilla { grid-template-columns: 1fr; gap: 32px; }
  .seccion { padding: 72px 0; }
  .portada { min-height: auto; }
  .banda { padding: 32px 28px; }
}
@media (max-width: 560px) {
  body.sitio { font-size: 16px; }
  .contenedor { padding: 0 18px; }
  .marca__lugar { display: none; }
  .materias { grid-template-columns: 1fr; }
  .cifras { grid-template-columns: 1fr 1fr 1fr; }
  .cifras dd { font-size: 22px; }
  .datos div { grid-template-columns: 1fr; gap: 2px; }
  .selector { display: flex; width: 100%; }
  .selector__opcion { flex: 1; text-align: center; padding: 9px 8px; }
  .banda__botones .boton { width: 100%; }
}