/* ==========================================================================
   ITSENC2 — Instituto Técnico Superior
   Sistema visual: emblema institucional (1938), tricolor sello + oro académico
   CSS puro. Sin frameworks. Mobile-first con min-width breakpoints.
   ========================================================================== */

:root {
  /* Paleta — extraída y evolucionada del sello institucional real */
  --navy-950: #080d1f;
  --navy-900: #0d1b42;
  --navy-800: #142a5c;
  --navy-700: #1c3a78;
  --royal-600: #1a3fd6;
  --seal-red: #d81f2a;
  --seal-red-dark: #a4141d;
  --gold-500: #c9a227;
  --gold-300: #e6c96b;
  --gold-100: #f4e8c4;
  --cream-50: #f7f4ec;
  --cream-100: #efe9d8;
  --paper: #fffdf8;
  --ink-900: #1c1c1a;
  --ink-700: #3d3d3a;
  --ink-500: #6b6a63;
  --silver-300: #c7c3ba;
  --white: #ffffff;

  /* Tipografía — pilas de sistema, sin fuentes externas */
  --font-display: Georgia, "Iowan Old Style", "Palatino Linotype", "Book Antiqua", serif;
  --font-body: "Segoe UI", system-ui, -apple-system, "Helvetica Neue", Arial, sans-serif;

  /* Espaciado */
  --space-1: 0.5rem;
  --space-2: 1rem;
  --space-3: 1.5rem;
  --space-4: 2rem;
  --space-5: 3rem;
  --space-6: 4.5rem;
  --space-7: 7rem;

  /* Bordes / radios — deliberadamente angulares (identidad heráldica, no SaaS) */
  --radius-sm: 2px;
  --radius-md: 4px;

  --container: 1240px;
  --header-h: 68px;
  --ease-premium: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: var(--header-h); }
body, h1, h2, h3, h4, p, dl, dd, figure, ul, ol { margin: 0; }
ul, ol { padding: 0; list-style: none; }
img { max-width: 100%; display: block; height: auto; }
a { color: inherit; text-decoration: none; }
button, input, textarea, select { font: inherit; color: inherit; }
button { cursor: pointer; background: none; border: none; }
svg { display: block; }

body {
  font-family: var(--font-body);
  color: var(--ink-900);
  background: var(--cream-50);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 { font-family: var(--font-display); font-weight: 700; line-height: 1.15; }
h2 { font-size: clamp(1.9rem, 4vw, 2.75rem); }
h3 { font-size: clamp(1.3rem, 2.5vw, 1.6rem); }

.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0;
}

.skip-link {
  position: absolute; left: 0; top: -100%; z-index: 1000;
  background: var(--gold-500); color: var(--navy-950);
  padding: var(--space-2) var(--space-3); font-weight: 700;
  transition: top .2s var(--ease-premium);
}
.skip-link:focus { top: 0; }

:focus-visible {
  outline: 3px solid var(--gold-500);
  outline-offset: 3px;
}

/* ---------- Utilities ---------- */
.eyebrow {
  font-family: var(--font-body);
  font-size: 0.78rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  font-weight: 700;
  color: var(--seal-red);
  margin-bottom: var(--space-2);
  display: block;
}

.section-head { max-width: 640px; margin: 0 auto var(--space-6); text-align: left; }
.section-lede { margin-top: var(--space-2); color: var(--ink-700); font-size: 1.05rem; }

/* ---------- Scroll reveal ---------- */
[data-reveal] {
  opacity: 0;
  transform: translateY(28px);
  filter: blur(6px);
  transition: opacity .9s var(--ease-premium), transform .9s var(--ease-premium), filter .9s var(--ease-premium);
}
[data-reveal].is-visible { opacity: 1; transform: translateY(0); filter: blur(0); }

@media (prefers-reduced-motion: reduce) {
  [data-reveal] { opacity: 1; transform: none; filter: none; transition: none; }
  html { scroll-behavior: auto; }
}

/* ---------- Scroll progress ---------- */
.scroll-progress {
  position: fixed; top: 0; left: 0; width: 100%; height: 3px;
  background: transparent; z-index: 1001; pointer-events: none;
}
.scroll-progress span {
  display: block; height: 100%; width: 0%;
  background: linear-gradient(90deg, var(--gold-500), var(--seal-red));
  transition: width .1s linear;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 0.95rem 1.9rem;
  font-weight: 700; font-size: 0.95rem; letter-spacing: 0.02em;
  border-radius: var(--radius-sm);
  transition: transform .35s var(--ease-premium), box-shadow .35s var(--ease-premium), background .3s ease, color .3s ease;
  white-space: nowrap;
}
.btn-primary { background: var(--seal-red); color: var(--white); }
.btn-primary:hover { background: var(--seal-red-dark); box-shadow: 0 12px 28px -8px rgba(216,31,42,.55); }
.btn-cta { background: var(--gold-500); color: var(--navy-950); padding: 0.7rem 1.4rem; font-size: .88rem; }
.btn-cta:hover { background: var(--gold-300); }
.btn-ghost { border: 1.5px solid var(--navy-900); color: var(--navy-900); }
.btn-ghost:hover { background: var(--navy-900); color: var(--white); }
.btn-outline { border: 1.5px solid var(--seal-red); color: var(--seal-red); }
.btn-outline:hover { background: var(--seal-red); color: var(--white); }
.btn-full { width: 100%; }
.btn:active { transform: scale(.97); }

/* ==========================================================================
   HEADER
   ========================================================================== */
.site-header {
  position: sticky; top: 0; z-index: 900;
  background: rgba(8, 13, 31, .68);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(201, 162, 39, .16);
  transition: transform .4s var(--ease-premium), background .4s ease, border-color .4s ease, box-shadow .4s ease;
}
.site-header::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: -1px; height: 1px;
  background: linear-gradient(90deg, transparent, var(--gold-500), var(--seal-red), var(--gold-500), transparent);
  background-size: 200% 100%;
  opacity: .5;
  animation: header-shimmer 7s linear infinite;
}
@keyframes header-shimmer { to { background-position: -200% 0; } }
.site-header.is-hidden { transform: translateY(-100%); }
.site-header.is-scrolled {
  background: rgba(8, 13, 31, .82);
  box-shadow: 0 20px 40px -24px rgba(0,0,0,.6);
}

.header-inner {
  max-width: var(--container); margin: 0 auto;
  display: flex; align-items: center; justify-content: space-between;
  gap: var(--space-3);
  padding: 0.6rem var(--space-3);
  min-height: var(--header-h);
  transition: min-height .3s ease;
}
.site-header.is-scrolled .header-inner { min-height: calc(var(--header-h) - 12px); }

.brand { display: flex; align-items: center; gap: 0.65rem; }
.brand-seal {
  border-radius: 50%; flex-shrink: 0; width: 40px; height: 40px;
  box-shadow: 0 0 0 1px rgba(201,162,39,.5), 0 0 16px rgba(201,162,39,.35);
  transition: transform .4s var(--ease-spring), width .3s ease, height .3s ease;
}
.brand:hover .brand-seal { transform: rotate(-8deg) scale(1.06); }
.brand-text { display: flex; flex-direction: column; line-height: 1.2; }
.brand-text strong { font-family: var(--font-display); font-size: 1.05rem; color: var(--cream-50); letter-spacing: .03em; }
.brand-text small { font-size: 0.64rem; color: var(--gold-300); letter-spacing: .08em; text-transform: uppercase; }

.primary-nav {
  position: fixed; inset: var(--header-h) 0 0 0;
  background: var(--navy-950);
  transform: translateX(100%);
  transition: transform .45s var(--ease-premium);
  overflow-y: auto;
  z-index: 899;
}
.primary-nav.is-open { transform: translateX(0); }
.primary-nav ul { display: flex; flex-direction: column; padding: var(--space-4) var(--space-3); }
.primary-nav a {
  display: block; padding: var(--space-2) 0; color: var(--cream-50);
  font-family: var(--font-display); font-size: 1.4rem;
  border-bottom: 1px solid rgba(255,255,255,.1);
}
.primary-nav a:hover, .primary-nav a:focus-visible { color: var(--gold-300); }

.header-actions { display: flex; align-items: center; gap: var(--space-2); }
.header-actions .btn-cta { display: none; }

.nav-toggle {
  width: 40px; height: 40px; position: relative; flex-shrink: 0;
  display: flex; align-items: center; justify-content: center;
}
.nav-toggle-bars, .nav-toggle-bars::before, .nav-toggle-bars::after {
  content: ""; display: block; position: absolute;
  width: 22px; height: 2px; background: var(--gold-300);
  transition: transform .3s var(--ease-premium), opacity .3s ease, background .3s ease;
}
.nav-toggle-bars::before { transform: translateY(-7px); }
.nav-toggle-bars::after { transform: translateY(7px); }
.nav-toggle[aria-expanded="true"] .nav-toggle-bars { background: transparent; }
.nav-toggle[aria-expanded="true"] .nav-toggle-bars::before { transform: rotate(45deg); background: var(--gold-300); }
.nav-toggle[aria-expanded="true"] .nav-toggle-bars::after { transform: rotate(-45deg); background: var(--gold-300); }

@media (prefers-reduced-motion: reduce) { .site-header::after { animation: none; } }

/* ==========================================================================
   HERO
   ========================================================================== */
.hero {
  position: relative; overflow: hidden;
  background: var(--navy-950);
  color: var(--cream-50);
  display: flex; flex-direction: column;
  min-height: calc(100vh - var(--header-h));
  min-height: calc(100svh - var(--header-h));
  padding-top: var(--space-4);
}
.hero::before {
  content: ""; position: absolute; inset: 0; z-index: 0;
  background:
    radial-gradient(circle at 85% 15%, rgba(201,162,39,.18), transparent 55%),
    radial-gradient(circle at 10% 90%, rgba(216,31,42,.16), transparent 50%);
  pointer-events: none;
}

/* ---- Tech FX layer: grid, scanline, orbs, particles ---- */
.hero-fx { position: absolute; inset: 0; z-index: 0; overflow: hidden; pointer-events: none; }
.hero-grid-lines {
  position: absolute; inset: -60px -56px auto -56px; height: calc(100% + 120px);
  background-image:
    linear-gradient(rgba(201,162,39,.09) 1px, transparent 1px),
    linear-gradient(90deg, rgba(201,162,39,.09) 1px, transparent 1px);
  background-size: 56px 56px;
  -webkit-mask-image: radial-gradient(circle at 60% 40%, #000 10%, transparent 72%);
  mask-image: radial-gradient(circle at 60% 40%, #000 10%, transparent 72%);
  will-change: transform;
  animation: grid-drift 26s linear infinite;
}
@keyframes grid-drift { to { transform: translate3d(56px, 56px, 0); } }

.hero-scanline {
  position: absolute; left: 0; right: 0; top: 0; height: 2px;
  background: linear-gradient(90deg, transparent, rgba(230,201,107,.55), transparent);
  will-change: transform;
  animation: scan-sweep 7s ease-in-out infinite;
}
@keyframes scan-sweep {
  0% { transform: translate3d(0, 0, 0); opacity: 0; }
  8% { opacity: 1; }
  50% { transform: translate3d(0, 100vh, 0); opacity: .5; }
  58% { opacity: 0; }
  100% { transform: translate3d(0, 100vh, 0); opacity: 0; }
}

.hero-orb {
  position: absolute; border-radius: 50%; filter: blur(50px);
  animation: orb-pulse 9s ease-in-out infinite;
}
.hero-orb-a { width: 340px; height: 340px; top: -80px; right: -60px; background: radial-gradient(circle, rgba(26,63,214,.4), transparent 70%); }
.hero-orb-b { width: 260px; height: 260px; bottom: -60px; left: 8%; background: radial-gradient(circle, rgba(216,31,42,.32), transparent 70%); animation-delay: -4.5s; }
@keyframes orb-pulse { 0%, 100% { transform: scale(1); opacity: .7; } 50% { transform: scale(1.25); opacity: 1; } }

.hero-particle {
  position: absolute; width: 4px; height: 4px; border-radius: 50%;
  background: var(--gold-300); box-shadow: 0 0 10px 2px rgba(230,201,107,.7);
  animation: particle-float 10s ease-in-out infinite;
}
.p1 { top: 18%; left: 12%; animation-duration: 8s; }
.p2 { top: 65%; left: 22%; animation-duration: 11s; animation-delay: -2s; }
.p3 { top: 30%; left: 48%; animation-duration: 9s; animation-delay: -5s; }
.p4 { top: 80%; left: 60%; animation-duration: 12s; animation-delay: -1s; }
.p5 { top: 12%; left: 78%; animation-duration: 10s; animation-delay: -6s; }
.p6 { top: 55%; left: 88%; animation-duration: 8.5s; animation-delay: -3s; }
@keyframes particle-float {
  0%, 100% { transform: translate(0, 0); opacity: .35; }
  50% { transform: translate(14px, -26px); opacity: 1; }
}

.hero-grid {
  position: relative; z-index: 1; flex: 1;
  max-width: var(--container); margin: 0 auto; width: 100%;
  padding: var(--space-4) var(--space-3) var(--space-5);
  display: grid; gap: var(--space-4); align-content: center;
}
.eyebrow { color: var(--gold-300); }
.hero .eyebrow { color: var(--gold-300); position: relative; padding-left: 1.1rem; }
.hero .eyebrow::before {
  content: ""; position: absolute; left: 0; top: 50%; translate: 0 -50%;
  width: 0.6rem; height: 0.6rem; border-radius: 50%; background: var(--gold-300);
  box-shadow: 0 0 10px 2px rgba(230,201,107,.75);
  animation: dot-pulse 2s ease-in-out infinite;
}
@keyframes dot-pulse { 0%, 100% { opacity: .5; scale: .85; } 50% { opacity: 1; scale: 1.15; } }

.hero h1 { font-size: clamp(1.9rem, 6vw, 2.7rem); font-weight: 700; letter-spacing: -0.01em; }
.h1-line { display: block; transition-delay: calc(var(--i, 0) * 0.09s); }
.h1-line:nth-child(1) { --i: 0; }
.h1-line:nth-child(2) { --i: 1; }
.h1-line:nth-child(3) { --i: 2; }
.h1-year {
  background: linear-gradient(100deg, var(--gold-300) 20%, var(--gold-500) 40%, var(--cream-50) 50%, var(--gold-500) 60%, var(--gold-300) 80%);
  background-size: 220% 100%;
  -webkit-background-clip: text; background-clip: text; color: transparent;
  font-style: italic;
  animation: gold-shine 5s linear infinite;
}
@keyframes gold-shine { to { background-position: -220% 0; } }

.hero-lede { margin-top: var(--space-2); max-width: 46ch; font-size: 1.02rem; color: var(--cream-100); }
.hero-actions { margin-top: var(--space-3); display: flex; flex-wrap: wrap; gap: var(--space-2); }
.hero .btn-ghost { border-color: var(--cream-50); color: var(--cream-50); }
.hero .btn-ghost:hover { background: var(--cream-50); color: var(--navy-950); }
.hero .btn-primary { position: relative; overflow: hidden; }
.hero .btn-primary::after {
  content: ""; position: absolute; inset: 0; border-radius: inherit;
  box-shadow: 0 0 0 0 rgba(216,31,42,.55);
  animation: btn-pulse-ring 2.6s ease-out infinite;
  pointer-events: none;
}
@keyframes btn-pulse-ring {
  0% { box-shadow: 0 0 0 0 rgba(216,31,42,.5); }
  70% { box-shadow: 0 0 0 14px rgba(216,31,42,0); }
  100% { box-shadow: 0 0 0 0 rgba(216,31,42,0); }
}

.hero-emblem { position: relative; display: flex; justify-content: center; align-items: center; padding: var(--space-3) 0; }
.emblem-inner { position: relative; transition: transform .3s ease-out; will-change: transform; }
.emblem-svg { width: min(260px, 58vw); height: auto; overflow: visible; }

/* ---- Outer seal: ring, orbiting badge text, satellite dots ---- */
.emblem-rotator { transform-origin: 200px 200px; animation: emblem-spin 50s linear infinite; }
@keyframes emblem-spin { to { transform: rotate(360deg); } }
.emblem-ring { fill: none; stroke: var(--silver-300); stroke-width: 1.5; opacity: .55; }
.emblem-ring-inner { opacity: .3; }
.emblem-arc-text {
  font-family: var(--font-body); font-size: 10.5px; font-weight: 700;
  letter-spacing: 3px; text-transform: uppercase; fill: var(--gold-300); opacity: .8;
}
.emblem-arc-text-bottom { fill: var(--cream-100); opacity: .55; }
.emblem-orbit-dot {
  fill: var(--gold-300);
  filter: drop-shadow(0 0 4px rgba(230,201,107,.85));
  animation: orbit-dot-pulse 3.2s ease-in-out infinite;
  transform-box: fill-box; transform-origin: center;
}
.od2 { animation-delay: -1.1s; }
.od3 { animation-delay: -2.2s; }
@keyframes orbit-dot-pulse { 0%, 100% { opacity: .4; transform: scale(.8); } 50% { opacity: 1; transform: scale(1.3); } }

/* ---- Central emblem: rounded triangle in the four colours of the crest ---- */
.emblem-tri-group { transform-box: fill-box; transform-origin: center; animation: tri-glow-breathe 4.5s ease-in-out 4s infinite; }
@keyframes tri-glow-breathe {
  0%, 100% { filter: drop-shadow(0 0 6px rgba(201,162,39,.25)); }
  50% { filter: drop-shadow(0 0 16px rgba(201,162,39,.55)); }
}
.emblem-tri-glow { fill: none; stroke: var(--royal-600); stroke-width: 3; opacity: 0; animation: fade-in-soft 1s ease 2.7s forwards; }
.emblem-tri-outline {
  fill: none; stroke: var(--royal-600); stroke-width: 4.5; stroke-linejoin: round; stroke-linecap: round;
  stroke-dasharray: 640; stroke-dashoffset: 640;
  animation: draw-tri 2.4s var(--ease-premium) .3s forwards;
}
.emblem-tri-inset {
  fill: none; stroke: var(--gold-300); stroke-width: 1.4; stroke-linejoin: round;
  transform: scale(.93); opacity: 0;
  animation: fade-in-soft 1s ease 2.6s forwards;
}
@keyframes draw-tri { to { stroke-dashoffset: 0; } }
@keyframes fade-in-soft { to { opacity: .65; } }

.emblem-fill { opacity: 0; animation: tri-fill-flicker 1.1s ease forwards; }
.emblem-fill-red { fill: var(--seal-red); animation-delay: 2.7s; }
.emblem-fill-blue-l { fill: var(--royal-600); animation-delay: 2.95s; }
.emblem-fill-blue-r { fill: var(--royal-600); animation-delay: 3.2s; }
@keyframes tri-fill-flicker {
  0% { opacity: 0; }
  6% { opacity: .7; }
  9% { opacity: .15; }
  14% { opacity: .85; }
  18% { opacity: .25; }
  24% { opacity: 1; }
  100% { opacity: 1; }
}

.emblem-scan { fill: url(#emblemScanGrad); mix-blend-mode: screen; opacity: 0; animation: scan-vertical 3.6s ease-in-out 4.2s infinite; }
@keyframes scan-vertical {
  0% { transform: translateY(-70px); opacity: 0; }
  12% { opacity: 1; }
  55% { opacity: .7; }
  70% { transform: translateY(190px); opacity: 0; }
  100% { transform: translateY(190px); opacity: 0; }
}

.emblem-letter {
  font-family: var(--font-display); font-weight: 700; text-anchor: middle;
  fill: var(--cream-50); opacity: 0;
  transform-box: fill-box; transform-origin: center;
  animation: tri-letter-in .5s var(--ease-spring) forwards;
}
.emblem-letter-n { font-size: 24px; animation-delay: 3.35s; }
.emblem-letter-e, .emblem-letter-c { font-size: 21px; animation-delay: 3.5s; }
.emblem-letter-c { animation-delay: 3.62s; }
.emblem-letter-2 { font-size: 23px; animation-delay: 3.75s; }
@keyframes tri-letter-in {
  0% { opacity: 0; transform: scale(.4); }
  65% { opacity: 1; transform: scale(1.12); }
  100% { opacity: 1; transform: scale(1); }
}

.emblem-metric {
  position: absolute; bottom: 0; left: 50%; transform: translateX(-50%);
  text-align: center; background: rgba(13,27,66,.75); backdrop-filter: blur(8px);
  border: 1px solid var(--gold-500); box-shadow: 0 0 24px -6px rgba(201,162,39,.5);
  padding: var(--space-1) var(--space-3); border-radius: var(--radius-sm);
}
.metric-number { display: block; font-family: var(--font-display); font-size: 1.7rem; color: var(--gold-300); }
.metric-label { font-size: 0.66rem; letter-spacing: .1em; text-transform: uppercase; color: var(--cream-100); }

.hero-ribbon {
  position: relative; z-index: 1;
  border-top: 1px solid rgba(255,255,255,.12);
  background: rgba(20,42,92,.55); backdrop-filter: blur(6px);
  overflow: hidden;
  padding: var(--space-2) 0;
}
.ribbon-track {
  display: inline-flex; gap: var(--space-3); white-space: nowrap;
  font-size: 0.78rem; letter-spacing: .08em; text-transform: uppercase; color: var(--gold-300);
  animation: ribbon-scroll 28s linear infinite;
}
@keyframes ribbon-scroll { from { transform: translateX(0); } to { transform: translateX(-50%); } }
@media (prefers-reduced-motion: reduce) {
  .ribbon-track { animation: none; }
  .emblem-rotator, .emblem-orbit-dot, .emblem-tri-group, .emblem-scan { animation: none; }
  .emblem-tri-outline { animation: none; stroke-dashoffset: 0; }
  .emblem-tri-glow, .emblem-tri-inset { animation: none; opacity: .5; }
  .emblem-fill, .emblem-letter { animation: none; opacity: 1; }
  .emblem-scan { opacity: 0; }
  .hero-grid-lines, .hero-scanline, .hero-orb, .hero-particle, .h1-year, .hero .btn-primary::after, .hero .eyebrow::before { animation: none; }
  .legacy-photo::after, .icon-halo::before, .program-index, .live-dot, .line-pulse, .contact-form::before { animation: none; }
  .schedule-facts svg path, .schedule-facts svg circle { transition: none; stroke-dashoffset: 0; }
  .program-panel::after { transition: none; transform: scaleY(1); }
  .frame-corner { transition: none; }
}

/* ==========================================================================
   NOSOTROS / LEGACY
   ========================================================================== */
.legacy { padding: var(--space-7) 0; background: var(--paper); position: relative; overflow: hidden; }
.legacy-frame {
  max-width: var(--container); margin: 0 auto; padding: 0 var(--space-3);
  display: grid; gap: var(--space-5); position: relative; z-index: 1;
}
.legacy-photo {
  position: relative; border: 10px solid var(--white);
  box-shadow: 0 30px 60px -25px rgba(13,27,66,.35);
  overflow: hidden;
  transition: box-shadow .5s var(--ease-premium);
}
.legacy-photo::before {
  content: ""; position: absolute; inset: 0; z-index: 1; pointer-events: none;
  background: linear-gradient(115deg, transparent 40%, rgba(230,201,107,.35) 50%, transparent 60%);
  background-size: 250% 250%; background-position: 120% 0;
  opacity: 0; transition: opacity .4s ease;
}
.legacy-photo:hover::before { opacity: 1; animation: sheen-sweep 1.2s ease forwards; }
@keyframes sheen-sweep { to { background-position: -20% 0; } }
.legacy-photo::after {
  content: ""; position: absolute; inset: 0; z-index: 1; pointer-events: none;
  background: linear-gradient(115deg, transparent 42%, rgba(230,201,107,.22) 50%, transparent 58%);
  background-size: 260% 260%; background-position: 140% 0;
  animation: sheen-ambient 7s ease-in-out infinite;
}
@keyframes sheen-ambient { 45%, 100% { background-position: -40% 0; } }
.legacy-photo img { width: 100%; object-fit: cover; aspect-ratio: 16/10; transition: transform .7s var(--ease-premium); }
.legacy-photo:hover img { transform: scale(1.045); }
.legacy-photo figcaption {
  position: absolute; left: 0; bottom: -1px; transform: translateY(50%); z-index: 2;
  background: var(--seal-red); color: var(--white);
  font-size: 0.78rem; letter-spacing: .05em; text-transform: uppercase;
  padding: 0.5rem 1rem;
}
.frame-corner {
  position: absolute; z-index: 2; width: 26px; height: 26px;
  border-color: var(--gold-300); opacity: 0; transition: opacity .5s ease .2s;
  pointer-events: none;
}
.legacy-photo:hover .frame-corner, [data-reveal].is-visible .frame-corner { opacity: .9; }
.fc-tl { top: 8px; left: 8px; border-top: 2px solid; border-left: 2px solid; }
.fc-tr { top: 8px; right: 8px; border-top: 2px solid; border-right: 2px solid; }
.fc-bl { bottom: 8px; left: 8px; border-bottom: 2px solid; border-left: 2px solid; }
.fc-br { bottom: 8px; right: 8px; border-bottom: 2px solid; border-right: 2px solid; }
.legacy-copy p { color: var(--ink-700); margin-top: var(--space-2); }
.legacy-stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-2); margin-top: var(--space-5); border-top: 1px solid var(--cream-100); padding-top: var(--space-4); }
.legacy-stats div { transition: transform .35s var(--ease-premium); }
.legacy-stats div:hover { transform: translateY(-4px); }
.legacy-stats dt { font-family: var(--font-display); font-size: 1.9rem; color: var(--navy-900); position: relative; display: inline-block; }
.legacy-stats dd { font-size: 0.78rem; color: var(--ink-500); text-transform: uppercase; letter-spacing: .05em; margin-top: 4px; }

/* ==========================================================================
   PROGRAMS / CARRERAS
   ========================================================================== */
.programs { padding: var(--space-7) 0; background: var(--cream-50); }
.programs > * { max-width: var(--container); margin-left: auto; margin-right: auto; padding-left: var(--space-3); padding-right: var(--space-3); }

.program-panel {
  display: grid; gap: var(--space-3);
  border-top: 1px solid var(--silver-300);
  padding: var(--space-5) 0;
  position: relative;
  overflow: hidden;
  transition: padding-left .4s var(--ease-premium);
}
.program-panel::before {
  content: ""; position: absolute; inset: 0; z-index: 0; opacity: 0;
  background: radial-gradient(320px circle at var(--mx, 50%) var(--my, 50%), rgba(201,162,39,.14), transparent 65%);
  transition: opacity .4s ease;
  pointer-events: none;
}
.program-panel::after {
  content: ""; position: absolute; left: 0; top: 0; bottom: 0; width: 3px;
  background: linear-gradient(180deg, var(--gold-500), var(--seal-red));
  transform: scaleY(0); transform-origin: top;
  transition: transform .7s var(--ease-premium);
}
.program-panel.is-visible::after { transform: scaleY(1); }
.program-panel-alt::after { left: auto; right: 0; }
.program-panel:hover::before { opacity: 1; }
.program-panel:hover { padding-left: var(--space-2); }
.program-index {
  font-family: var(--font-display); font-size: 4rem; color: var(--gold-500);
  opacity: .5; line-height: 1; position: relative; z-index: 1;
  transition: opacity .4s ease, text-shadow .4s ease;
  animation: index-glow-pulse 3.6s ease-in-out infinite;
}
.program-panel:hover .program-index { opacity: .85; text-shadow: 0 0 22px rgba(201,162,39,.55); }
@keyframes index-glow-pulse {
  0%, 100% { text-shadow: 0 0 0 rgba(201,162,39,0); }
  50% { text-shadow: 0 0 18px rgba(201,162,39,.4); }
}
.program-body { position: relative; z-index: 1; }
.program-panel h3 { color: var(--navy-900); margin-bottom: var(--space-2); }
.program-panel p { color: var(--ink-700); max-width: 62ch; }
.program-tags { display: flex; flex-wrap: wrap; gap: 0.5rem; margin: var(--space-3) 0; }
.program-tags li {
  font-size: 0.78rem; letter-spacing: .03em; text-transform: uppercase;
  border: 1px solid var(--navy-900); color: var(--navy-900);
  padding: 0.35rem 0.75rem; border-radius: var(--radius-sm);
  transition: background .3s ease, color .3s ease, transform .3s var(--ease-premium);
}
.program-tags li:hover { background: var(--navy-900); color: var(--white); transform: translateY(-2px); }
.program-panel-alt .program-tags li { border-color: var(--seal-red); color: var(--seal-red); }
.program-panel-alt .program-tags li:hover { background: var(--seal-red); color: var(--white); }

/* ==========================================================================
   MODALIDAD / SCHEDULE
   ========================================================================== */
.schedule { background: var(--navy-950); color: var(--cream-50); padding: var(--space-7) 0; position: relative; overflow: hidden; }
.schedule::before {
  content: ""; position: absolute; inset: 0; z-index: 0;
  background-image:
    linear-gradient(rgba(201,162,39,.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(201,162,39,.06) 1px, transparent 1px);
  background-size: 64px 64px;
  -webkit-mask-image: radial-gradient(circle at 20% 30%, #000 0%, transparent 65%);
  mask-image: radial-gradient(circle at 20% 30%, #000 0%, transparent 65%);
}
.schedule-inner { max-width: var(--container); margin: 0 auto; padding: 0 var(--space-3); position: relative; z-index: 1; }
.schedule-copy { max-width: 560px; margin-bottom: var(--space-5); }
.schedule .eyebrow { color: var(--gold-300); }
.schedule-copy p { color: var(--cream-100); margin-top: var(--space-2); }

.schedule-facts { display: grid; gap: var(--space-3); grid-template-columns: 1fr; }
.schedule-facts li {
  display: flex; align-items: center; gap: var(--space-3);
  border: 1px solid rgba(255,255,255,.15);
  padding: var(--space-3);
  position: relative; overflow: hidden;
  transition: border-color .3s ease, transform .3s var(--ease-premium), box-shadow .3s ease;
}
.schedule-facts li::before {
  content: ""; position: absolute; inset: 0; z-index: 0; opacity: 0;
  background: radial-gradient(260px circle at var(--mx, 50%) var(--my, 50%), rgba(201,162,39,.18), transparent 65%);
  transition: opacity .4s ease;
}
.schedule-facts li:hover::before { opacity: 1; }
.schedule-facts li:hover { border-color: var(--gold-500); transform: translateY(-4px); box-shadow: 0 18px 32px -20px rgba(201,162,39,.4); }
.schedule-facts li > * { position: relative; z-index: 1; }
.icon-halo { position: relative; display: inline-flex; flex-shrink: 0; }
.icon-halo::before {
  content: ""; position: absolute; inset: -10px; z-index: -1; border-radius: 50%;
  background: radial-gradient(circle, rgba(230,201,107,.4), transparent 70%);
  animation: dot-pulse 3s ease-in-out infinite;
}
.schedule-facts svg { width: 40px; height: 40px; flex-shrink: 0; stroke: var(--gold-300); fill: none; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; transition: transform .4s var(--ease-spring); }
.schedule-facts li:hover svg { transform: scale(1.12) rotate(-4deg); }
.schedule-facts svg path, .schedule-facts svg circle {
  stroke-dasharray: 100; stroke-dashoffset: 100;
  transition: stroke-dashoffset 1.3s var(--ease-premium);
}
.schedule-facts li.is-visible svg path, .schedule-facts li.is-visible svg circle { stroke-dashoffset: 0; }
.schedule-facts strong { display: block; font-family: var(--font-display); font-size: 1.1rem; }
.schedule-facts span { font-size: 0.85rem; color: var(--cream-100); }

/* ==========================================================================
   ADMISSION / REQUISITOS
   ========================================================================== */
.admission { padding: var(--space-7) 0; background: var(--paper); }
.admission > * { max-width: var(--container); margin-left: auto; margin-right: auto; padding-left: var(--space-3); padding-right: var(--space-3); }

.admission-track { position: relative; }
.admission-line {
  position: absolute; top: 6px; bottom: 6px; left: 14px; width: 2px;
  background: linear-gradient(180deg, var(--gold-500), var(--seal-red));
  opacity: .3; pointer-events: none;
}
.line-pulse {
  position: absolute; left: 50%; top: 0; transform: translate(-50%, 0);
  width: 9px; height: 9px; border-radius: 50%; background: var(--gold-300);
  box-shadow: 0 0 12px 3px rgba(230,201,107,.85);
  animation: line-travel 3.6s ease-in-out infinite;
}
@keyframes line-travel {
  0% { top: 0%; opacity: 0; }
  10% { opacity: 1; }
  90% { opacity: 1; }
  100% { top: 100%; opacity: 0; }
}
.admission-steps { counter-reset: step; display: grid; gap: 0; }
.admission-steps li {
  display: grid; grid-template-columns: auto 1fr; gap: var(--space-3);
  align-items: start; padding: var(--space-3) 0; border-bottom: 1px solid var(--cream-100);
  position: relative; transition: padding-left .35s var(--ease-premium), border-color .35s ease;
}
.admission-steps li::before {
  content: ""; position: absolute; left: 0; top: 0; bottom: 0; width: 0;
  background: linear-gradient(180deg, var(--gold-500), var(--seal-red));
  transition: width .35s var(--ease-premium);
}
.admission-steps li:hover { padding-left: var(--space-2); border-color: var(--gold-500); }
.admission-steps li:hover::before { width: 3px; }
.step-index {
  font-family: var(--font-display); font-size: 1.6rem; color: var(--seal-red);
  transition: transform .35s var(--ease-spring), color .35s ease;
}
.admission-steps li:hover .step-index { transform: scale(1.15); color: var(--gold-500); }
.admission-steps p { padding-top: 0.25rem; font-size: 1.05rem; }
.admission-cta { margin-top: var(--space-5); }

/* ==========================================================================
   NEWS / ACTUALIDAD
   ========================================================================== */
.news { padding: var(--space-7) 0; background: var(--cream-100); }
.news > * { max-width: var(--container); margin-left: auto; margin-right: auto; padding-left: var(--space-3); padding-right: var(--space-3); }
.eyebrow-live { display: inline-flex; align-items: center; gap: .5rem; padding-left: 0; }
.live-dot {
  width: .55rem; height: .55rem; border-radius: 50%; background: var(--seal-red); flex-shrink: 0;
  box-shadow: 0 0 0 0 rgba(216,31,42,.6);
  animation: live-ping 1.8s ease-out infinite;
}
@keyframes live-ping {
  0% { box-shadow: 0 0 0 0 rgba(216,31,42,.55); }
  70% { box-shadow: 0 0 0 9px rgba(216,31,42,0); }
  100% { box-shadow: 0 0 0 0 rgba(216,31,42,0); }
}
.news-grid { display: grid; gap: var(--space-3); }
.news-card {
  background: var(--paper); padding: var(--space-4);
  border-left: 4px solid var(--seal-red);
  box-shadow: 0 20px 40px -30px rgba(13,27,66,.3);
  position: relative; overflow: hidden;
  transition: transform .4s var(--ease-premium), box-shadow .4s ease, border-color .4s ease;
}
.news-card::before {
  content: ""; position: absolute; inset: 0; z-index: 0; opacity: 0;
  background: radial-gradient(280px circle at var(--mx, 50%) var(--my, 50%), rgba(216,31,42,.08), transparent 65%);
  transition: opacity .4s ease;
}
.news-card::after {
  content: ""; position: absolute; top: 10px; right: 10px; width: 20px; height: 20px;
  border-top: 2px solid var(--gold-500); border-right: 2px solid var(--gold-500);
  opacity: 0; transition: opacity .4s ease, transform .4s var(--ease-premium);
  transform: translate(-4px, 4px);
}
.news-card:hover::before { opacity: 1; }
.news-card:hover::after { opacity: 1; transform: translate(0, 0); }
.news-card:hover {
  transform: translateY(-6px);
  border-color: var(--gold-500);
  box-shadow: 0 30px 50px -28px rgba(13,27,66,.4);
}
.news-card > * { position: relative; z-index: 1; }
.news-kicker { font-size: 0.75rem; text-transform: uppercase; letter-spacing: .08em; color: var(--seal-red); font-weight: 700; }
.news-card h3 { color: var(--navy-900); margin: var(--space-2) 0; }
.news-card p { color: var(--ink-700); }
.news-link { display: inline-block; margin-top: var(--space-2); font-weight: 700; color: var(--navy-900); border-bottom: 2px solid var(--gold-500); transition: color .3s ease, letter-spacing .3s ease; }
.news-link:hover { color: var(--seal-red); letter-spacing: .02em; }

/* ==========================================================================
   CONTACT
   ========================================================================== */
.contact { padding: var(--space-7) 0; background: var(--navy-950); color: var(--cream-50); position: relative; overflow: hidden; }
.contact::before {
  content: ""; position: absolute; inset: 0; z-index: 0;
  background:
    radial-gradient(circle at 90% 10%, rgba(26,63,214,.22), transparent 55%),
    radial-gradient(circle at 5% 95%, rgba(201,162,39,.14), transparent 50%);
}
.contact-grid { position: relative; z-index: 1; max-width: var(--container); margin: 0 auto; padding: 0 var(--space-3); display: grid; gap: var(--space-5); }
.contact .eyebrow { color: var(--gold-300); }
.contact-info p { color: var(--cream-100); margin-top: var(--space-2); max-width: 50ch; }

.contact-channels { margin-top: var(--space-4); display: grid; gap: var(--space-3); }
.contact-channels li { border-top: 1px solid rgba(255,255,255,.15); padding-top: var(--space-2); transition: transform .3s var(--ease-premium); }
.contact-channels li:hover { transform: translateX(6px); }
.channel-label { display: block; font-size: 0.72rem; text-transform: uppercase; letter-spacing: .08em; color: var(--gold-300); margin-bottom: 4px; }
.contact-channels a { font-weight: 700; border-bottom: 1px solid transparent; transition: border-color .3s ease, color .3s ease; }
.contact-channels a:hover { border-color: var(--gold-300); color: var(--gold-300); }

.contact-form {
  position: relative; z-index: 1;
  background: var(--paper); color: var(--ink-900); padding: var(--space-4); border-radius: var(--radius-md);
  box-shadow: 0 30px 60px -25px rgba(0,0,0,.5);
  border: 1px solid rgba(201,162,39,.25);
}
.contact-form::before {
  content: ""; position: absolute; inset: -2px; z-index: -1; border-radius: calc(var(--radius-md) + 2px);
  padding: 2px;
  background: conic-gradient(from 0deg, var(--gold-500), transparent 28%, var(--seal-red), transparent 68%, var(--gold-500));
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  mask-composite: exclude;
  opacity: .8;
  animation: ring-spin 7s linear infinite;
}
.contact-form h3 { color: var(--navy-900); margin-bottom: var(--space-3); }
.field { margin-bottom: var(--space-3); position: relative; }
.field label { display: block; font-size: 0.85rem; font-weight: 700; margin-bottom: 0.4rem; color: var(--navy-900); }
.field input, .field textarea, .field select {
  width: 100%; padding: 0.8rem 0.9rem; border: 1.5px solid var(--silver-300);
  border-radius: var(--radius-sm); background: var(--white);
  transition: border-color .25s ease, box-shadow .25s ease;
}
.field input:focus, .field textarea:focus, .field select:focus {
  border-color: var(--royal-600); box-shadow: 0 0 0 3px rgba(26,63,214,.15); outline: none;
}
.field textarea { resize: vertical; min-height: 110px; }
.field-error {
  display: none; color: var(--seal-red-dark); font-size: 0.8rem; margin-top: 0.3rem;
}
.field.has-error input, .field.has-error textarea { border-color: var(--seal-red); }
.field.has-error .field-error { display: block; }

.form-status { margin-top: var(--space-2); font-weight: 700; min-height: 1.2em; }
.form-status.is-success { color: #1f7a3d; }
.form-status.is-error { color: var(--seal-red-dark); }

/* ==========================================================================
   WHATSAPP FAB
   ========================================================================== */
.whatsapp-fab {
  position: fixed; right: var(--space-3); bottom: var(--space-3); z-index: 800;
  width: 58px; height: 58px; border-radius: 50%;
  background: #25d366; display: flex; align-items: center; justify-content: center;
  box-shadow: 0 14px 30px -10px rgba(0,0,0,.4);
  opacity: 0; transform: translateY(20px) scale(.8); pointer-events: none;
  transition: opacity .4s var(--ease-premium), transform .4s var(--ease-premium);
}
.whatsapp-fab.is-visible { opacity: 1; transform: translateY(0) scale(1); pointer-events: auto; }
.whatsapp-fab svg { width: 30px; height: 30px; fill: var(--white); }
.whatsapp-fab::before {
  content: ""; position: absolute; inset: 0; border-radius: 50%;
  border: 2px solid #25d366; animation: pulse-ring 2.4s ease-out infinite;
}
@keyframes pulse-ring { 0% { transform: scale(1); opacity: .6; } 100% { transform: scale(1.6); opacity: 0; } }
@media (prefers-reduced-motion: reduce) { .whatsapp-fab::before { animation: none; } }

/* ==========================================================================
   FOOTER
   ========================================================================== */
.site-footer {
  background: var(--navy-950); color: var(--cream-100);
  position: relative; overflow: hidden;
}
.site-footer::before {
  content: ""; position: absolute; top: 0; left: 0; right: 0; height: 2px;
  background: linear-gradient(90deg, transparent, var(--gold-500), var(--seal-red), var(--gold-500), transparent);
  background-size: 200% 100%;
  animation: header-shimmer 8s linear infinite;
}
.footer-inner {
  max-width: var(--container); margin: 0 auto;
  padding: var(--space-3) var(--space-3);
  display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between;
  gap: var(--space-2) var(--space-4);
  position: relative; z-index: 1;
}

.footer-brand { display: flex; gap: 0.75rem; align-items: center; position: relative; }
.footer-brand-ring {
  position: absolute; inset: -7px 0 -7px -7px; width: 56px; height: 56px; border-radius: 50%;
  background: conic-gradient(from 0deg, var(--gold-500), transparent 30%, var(--seal-red), transparent 70%, var(--gold-500));
  filter: blur(2.5px); opacity: .6;
  animation: ring-spin 6s linear infinite;
}
@keyframes ring-spin { to { transform: rotate(360deg); } }
.footer-logo {
  position: relative; z-index: 1; border-radius: 50%; flex-shrink: 0;
  box-shadow: 0 0 0 2px var(--navy-950), 0 0 18px rgba(201,162,39,.5);
  transition: transform .45s var(--ease-spring);
}
.footer-brand:hover .footer-logo { transform: scale(1.08) rotate(4deg); }
.footer-brand-text { display: flex; flex-direction: column; line-height: 1.25; }
.footer-brand-text strong { font-family: var(--font-display); font-size: 1.05rem; color: var(--cream-50); letter-spacing: .02em; }
.footer-brand-text small { font-size: 0.68rem; color: var(--gold-300); text-transform: uppercase; letter-spacing: .06em; }

.footer-nav { display: flex; flex-wrap: wrap; gap: var(--space-1) var(--space-3); }
.footer-nav a, .footer-contact a {
  font-size: 0.85rem; color: var(--cream-100); position: relative;
  transition: color .3s ease;
}
.footer-nav a::after {
  content: ""; position: absolute; left: 0; bottom: -3px; width: 0; height: 1px;
  background: var(--gold-300); transition: width .3s var(--ease-premium);
}
.footer-nav a:hover, .footer-contact a:hover { color: var(--gold-300); }
.footer-nav a:hover::after { width: 100%; }

.footer-contact { display: flex; align-items: center; gap: 0.5rem; font-size: 0.85rem; }
.footer-dot { color: rgba(255,255,255,.35); }

.footer-copy { font-size: 0.75rem; color: var(--ink-500); width: 100%; text-align: center; order: 99; padding-top: var(--space-1); border-top: 1px solid rgba(255,255,255,.08); }

@media (min-width: 768px) {
  .footer-inner { padding: 0.85rem var(--space-3); }
  .footer-copy {
    width: auto; order: 0; border-top: none; padding-top: 0;
    margin-left: auto; padding-left: var(--space-3); border-left: 1px solid rgba(255,255,255,.12);
  }
}

/* ==========================================================================
   MAGNETIC BUTTONS (JS aplica --mx / --my)
   ========================================================================== */
[data-magnetic] { transform: translate(var(--mx, 0), var(--my, 0)); }

/* ==========================================================================
   BREAKPOINTS
   ========================================================================== */

/* >= 390px : ajustes mínimos, la base ya cubre mobile pequeño */
@media (min-width: 390px) {
  .legacy-stats { gap: var(--space-3); }
}

/* >= 576px */
@media (min-width: 576px) {
  .hero-actions { gap: var(--space-3); }
  .news-grid { grid-template-columns: 1fr; }
}

/* >= 768px */
@media (min-width: 768px) {
  :root { --header-h: 76px; }
  .header-actions .btn-cta { display: inline-flex; }
  .primary-nav { position: static; inset: auto; transform: none; background: none; overflow: visible; z-index: auto; }
  .primary-nav ul { flex-direction: row; padding: 0; gap: var(--space-4); }
  .primary-nav a {
    padding: 0.3rem 0; border-bottom: none; color: var(--cream-100);
    font-family: var(--font-body); font-size: 0.92rem; font-weight: 600; position: relative;
    transition: color .3s ease, text-shadow .3s ease;
  }
  .primary-nav a::after {
    content: ""; position: absolute; left: 0; bottom: -4px; width: 0; height: 2px;
    background: linear-gradient(90deg, var(--gold-500), var(--seal-red));
    box-shadow: 0 0 8px rgba(201,162,39,.7);
    transition: width .35s var(--ease-premium);
  }
  .primary-nav a:hover, .primary-nav a:focus-visible { color: var(--gold-300); }
  .primary-nav a:hover::after, .primary-nav a:focus-visible::after { width: 100%; }
  .nav-toggle { display: none; }

  .legacy-frame { grid-template-columns: 1.1fr 0.9fr; align-items: center; }
  .schedule-facts { grid-template-columns: repeat(2, 1fr); }
  .news-grid { grid-template-columns: repeat(2, 1fr); }
  .program-panel { grid-template-columns: 140px 1fr; }
  .admission-steps li { grid-template-columns: 90px 1fr; }
  .admission-line { left: 44px; }
}

/* >= 992px */
@media (min-width: 992px) {
  .hero-grid { grid-template-columns: 1.15fr 0.85fr; align-items: center; }
  .hero-lede { font-size: 1.1rem; }
  .contact-grid { grid-template-columns: 0.9fr 1.1fr; }
  .schedule-inner { display: grid; grid-template-columns: 0.8fr 1.2fr; gap: var(--space-6); align-items: start; }
  .schedule-copy { margin-bottom: 0; }
}

/* >= 1200px */
@media (min-width: 1200px) {
  .hero h1 { font-size: clamp(2.4rem, 3.6vw, 3.4rem); }
  .emblem-svg { width: min(320px, 26vw); }
  .program-panel { grid-template-columns: 200px 1fr; }
  .program-panel-alt { direction: rtl; }
  .program-panel-alt .program-body { direction: ltr; }
  .program-panel-alt .program-index { direction: ltr; text-align: right; }
}

/* >= 1440px */
@media (min-width: 1440px) {
  .container, .hero-grid, .legacy-frame, .programs > *, .schedule-inner, .admission > *, .news > *, .contact-grid, .footer-inner, .header-inner {
    max-width: 1360px;
  }
}