:root {
  --bg: #070d1f;
  --bg-soft: #0c1430;
  --bg-soft-2: #131d41;
  --surface: rgba(255, 255, 255, 0.86);
  --surface-strong: #ffffff;
  --text: #16203b;
  --muted: #5e6988;
  --line: rgba(22, 32, 59, 0.1);
  --primary: #365dff;
  --primary-2: #6f7cff;
  --accent: #ffd447;
  --accent-2: #ff8bd3;
  --accent-3: #46d7ff;
  --accent-4: #7cffb6;
  --dark: #091226;
  --shadow: 0 18px 44px rgba(7, 13, 31, 0.18);
  --shadow-soft: 0 12px 28px rgba(7, 13, 31, 0.1);
  --radius-xl: 30px;
  --radius-lg: 24px;
  --radius-md: 18px;
  --radius-sm: 12px;
  --container: min(1180px, calc(100% - 1.4rem));
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: "Source Sans 3", system-ui, sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(111, 124, 255, 0.18), transparent 30%),
    radial-gradient(circle at 85% 15%, rgba(255, 139, 211, 0.12), transparent 22%),
    radial-gradient(circle at 50% 0%, rgba(70, 215, 255, 0.12), transparent 25%),
    linear-gradient(180deg, #f8f9ff 0%, #eef3ff 30%, #f8fbff 100%);
  line-height: 1.55;
}

img {
  display: block;
  width: 100%;
  height: auto;
}

a { color: inherit; text-decoration: none; }

p,
li { font-size: 1.06rem; }

.skip-link {
  position: absolute;
  left: -9999px;
  top: auto;
}

.skip-link:focus {
  left: 1rem;
  top: 1rem;
  z-index: 1000;
  background: #fff;
  padding: .75rem 1rem;
  border-radius: 10px;
}

.container {
  width: var(--container);
  margin: 0 auto;
}

.section {
  padding: 5.2rem 0;
  position: relative;
}

.alt-section {
  background: linear-gradient(180deg, rgba(255,255,255,0.42), rgba(255,255,255,0.72));
  backdrop-filter: blur(10px);
}

/* =========================
   HEADER
========================= */

.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  overflow: hidden;
  background:
    linear-gradient(
      90deg,
      rgba(54, 93, 255, 0.85),
      rgba(168, 85, 247, 0.75),
      rgba(70, 215, 255, 0.75)
    );
  border-bottom: 1px solid rgba(255,255,255,0.15);
  box-shadow: 0 10px 30px rgba(54, 93, 255, 0.25);
}

.site-header::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(
    120deg,
    rgba(255,255,255,0.25),
    transparent 40%
  );
  pointer-events: none;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: 76px;
}

.brand {
  display: flex;
  align-items: center;
  gap: .85rem;
  min-width: 0;
}

.brand-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  border-radius: 18px;
  font-family: "Montserrat", sans-serif;
  font-weight: 900;
  letter-spacing: .08em;
  color: #fff;
  background: linear-gradient(135deg, var(--primary), var(--accent-2));
  box-shadow: 0 16px 34px rgba(54, 93, 255, 0.34);
}

.brand-mark2 {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 100px;
  height: 100px;
}

.brand-text {
  font-family: "Montserrat", sans-serif;
  font-weight: 900;
  font-size: 1.1rem;
  line-height: 1.2;
  max-width: 360px;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 1.05rem;
  flex-wrap: wrap;
}

.site-nav a {
  position: relative;
  color: rgba(255, 255, 255, 0.95);
  font-weight: 800;
  text-shadow: 0 1px 2px rgba(0,0,0,0.25);
  font-size: .96rem;
}

.site-nav a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -0.35rem;
  width: 100%;
  height: 3px;
  border-radius: 999px;
  transform: scaleX(0);
  transform-origin: left;
  background: #ffffff;
  transition: transform .25s ease;
}

.site-nav a:hover::after,
.site-nav a:focus-visible::after {
  transform: scaleX(1);
}

.menu-toggle {
  display: none;
  border: 0;
  background: transparent;
  padding: .35rem;
}

.menu-toggle span {
  display: block;
  width: 28px;
  height: 3px;
  margin: 5px 0;
  background: var(--dark);
  border-radius: 4px;
}

/* =========================
   HERO
========================= */

.hero {
  padding-top: 4.2rem;
  overflow: clip;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr .95fr;
  gap: 2rem;
  align-items: center;
}

.hero-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(14px);
  pointer-events: none;
}

.hero-orb-a {
  width: 280px;
  height: 280px;
  top: 2.4rem;
  left: -4rem;
  background: radial-gradient(circle, rgba(54,93,255,0.24), transparent 70%);
}

.hero-orb-b {
  width: 260px;
  height: 260px;
  top: 6rem;
  right: -3rem;
  background: radial-gradient(circle, rgba(255,139,211,0.22), transparent 70%);
}

.eyebrow {
  font-family: "Montserrat", sans-serif;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: .14em;
  font-size: .77rem;
  color: var(--primary);
  margin: 0 0 1rem;
}

.hero h1,
.section-heading h2,
.intro-grid h2,
.project-copy h2,
.cta-copy h2 {
  font-family: "Montserrat", sans-serif;
  font-weight: 900;
  line-height: 1.03;
  margin: 0 0 1rem;
  letter-spacing: -0.04em;
}

.hero h1 {
  font-size: clamp(2.9rem, 5vw, 5.2rem);
  max-width: 11ch;
}

.lead {
  font-size: 1.2rem;
  color: var(--muted);
  max-width: 600px;
}

.hero-mini-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: .9rem;
  margin-top: 1.7rem;
}

.mini-card {
  padding: 1rem;
  border-radius: 22px;
  background: rgba(255,255,255,0.78);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(22,32,59,0.08);
  box-shadow: var(--shadow-soft);
}

.mini-card strong {
  display: block;
  font-family: "Montserrat", sans-serif;
  font-size: .95rem;
  line-height: 1.15;
  margin-bottom: .35rem;
}

.mini-card span {
  display: block;
  color: var(--muted);
  font-size: .95rem;
  line-height: 1.25;
}

.hero-visual {
  position: relative;
  min-height: 610px;
}

.hero-card {
  overflow: hidden;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow);
  background: #fff;
}

.hero-card img {
  height: 100%;
  object-fit: cover;
}

.hero-card-main {
  height: 100%;
  min-height: 610px;
  border: 8px solid rgba(255,255,255,0.72);
}

.hero-card-floating {
  position: absolute;
  width: 220px;
  height: 150px;
  border: 6px solid rgba(255,255,255,0.94);
}

.hero-card-a {
  left: -1rem;
  bottom: 2rem;
  transform: rotate(-7deg);
}

.hero-card-b {
  right: -1rem;
  top: 2.2rem;
  transform: rotate(7deg);
}

.hero-tag {
  position: absolute;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  padding: .6rem .95rem;
  border-radius: 999px;
  font-family: "Montserrat", sans-serif;
  font-size: .78rem;
  font-weight: 800;
  color: #fff;
  box-shadow: var(--shadow-soft);
}

.hero-tag-a {
  right: 2.2rem;
  bottom: 1.5rem;
  background: linear-gradient(135deg, var(--primary), var(--accent-3));
}

.hero-tag-b {
  left: 2rem;
  top: 1rem;
  background: linear-gradient(135deg, #ff6eb1, #ffb86a);
}

/* =========================
   INTRO
========================= */

.intro-band {
  padding-top: 2rem;
}

.intro-grid {
  display: grid;
  grid-template-columns: .95fr 1.05fr;
  gap: 2rem;
  background: linear-gradient(135deg, rgba(255,255,255,0.92), rgba(255,255,255,0.72));
  border: 1px solid rgba(22, 32, 59, 0.08);
  border-radius: 32px;
  padding: 2rem;
  box-shadow: var(--shadow);
}

.intro-grid h2 {
  font-size: clamp(2rem, 4vw, 3rem);
}

.section-heading {
  max-width: 820px;
  margin-bottom: 2rem;
}

.section-heading h2 {
  font-size: clamp(2rem, 4vw, 3.4rem);
}

.section-heading p {
  color: var(--muted);
  font-size: 1.15rem;
}

/* =========================
   CARDS GENERALES
========================= */

.cards {
  display: grid;
  gap: 1.25rem;
}

.four-col {
  grid-template-columns: repeat(4, 1fr);
}

.three-col {
  grid-template-columns: repeat(3, 1fr);
}

/* BENEFITS GRID: 4 columnas reales */
.benefits-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1.25rem;
  align-items: stretch;
}

.info-card,
.semester-card,
.stat-card,
.panel,
.schedule-card {
  background: var(--surface);
  backdrop-filter: blur(10px);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 1.4rem;
  box-shadow: var(--shadow-soft);
}

.info-card {
  position: relative;
  overflow: hidden;
}

.info-card::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 6px;
  background: linear-gradient(90deg, var(--primary), var(--accent-2), var(--accent-3));
}

.info-card h3,
.learn-copy h3,
.semester-card h3,
.panel h3,
.schedule-card h3 {
  font-family: "Montserrat", sans-serif;
  font-weight: 800;
  margin: 0 0 .7rem;
  font-size: 1.12rem;
}

.icon-badge {
  width: 52px;
  height: 52px;
  border-radius: 16px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: "Montserrat", sans-serif;
  font-weight: 900;
  margin-bottom: 1rem;
  background: linear-gradient(135deg, rgba(54,93,255,0.12), rgba(255,139,211,0.2));
  color: var(--primary);
}

.accent-blue::before { background: linear-gradient(90deg, #365dff, #46d7ff); }
.accent-pink::before { background: linear-gradient(90deg, #ff5bbd, #ffa164); }
.accent-gold::before { background: linear-gradient(90deg, #ffc533, #fff16d); }
.accent-cyan::before { background: linear-gradient(90deg, #24c6ff, #7cffb6); }
.accent-violet::before { background: linear-gradient(90deg, #7c4dff, #ff5bbd); }

/* solo tarjetas 1 a 4 */
.benefits-grid > .info-card:not(.featured-benefit) {
  grid-column: span 1;
}

/* =========================
   TARJETA DESTACADA BENEFICIO 05
========================= */

.featured-benefit {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: 52px 240px 1fr;
  grid-template-areas:
    "badge title text"
    "badge title note";
  column-gap: 1.25rem;
  row-gap: .35rem;
  align-items: start;
  min-height: 0;
  background: linear-gradient(
    135deg,
    rgba(124,77,255,0.12),
    rgba(255,91,189,0.12),
    rgba(255,255,255,0.96)
  );
}

.featured-benefit .icon-badge {
  grid-area: badge;
  margin: 0;
}

.featured-benefit h3 {
  grid-area: title;
  margin: .05rem 0 0;
  line-height: 1.2;
}

.featured-benefit p {
  grid-area: text;
  margin: 0;
}

.featured-benefit small {
  grid-area: note;
  display: block;
  margin: 0;
  color: var(--muted);
  font-size: .95rem;
  font-weight: 700;
  line-height: 1.35;
}

/* =========================
   APRENDIZAJES
========================= */

.learn-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.4rem;
}

.learn-card {
  background: var(--surface-strong);
  border: 1px solid var(--line);
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-soft);
}

.learn-card img {
  aspect-ratio: 16 / 8.5;
  object-fit: cover;
}

.learn-copy {
  padding: 1.15rem 1.25rem 1.45rem;
}

.learn-label {
  display: inline-flex;
  align-items: center;
  padding: .42rem .72rem;
  border-radius: 999px;
  font-family: "Montserrat", sans-serif;
  font-size: .76rem;
  font-weight: 800;
  color: var(--primary);
  background: linear-gradient(135deg, rgba(54,93,255,0.1), rgba(70,215,255,0.16));
  margin-bottom: .75rem;
}

/* =========================
   PROGRAMA
========================= */

.semester-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.3rem;
  margin-bottom: 1.5rem;
}

.semester-card {
  background: linear-gradient(180deg, rgba(255,255,255,0.96), rgba(248,250,255,0.9));
}

.semester-header {
  display: inline-flex;
  padding: .5rem .9rem;
  border-radius: 999px;
  background: linear-gradient(135deg, rgba(54,93,255,0.11), rgba(255,139,211,0.18));
  color: var(--primary);
  font-weight: 800;
  font-family: "Montserrat", sans-serif;
  margin-bottom: 1rem;
}

.semester-card ol {
  margin: 0;
  padding-left: 1.3rem;
}

.semester-card li {
  margin-bottom: .8rem;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 1rem;
}

.stat-card {
  text-align: center;
  padding: 1.25rem 1rem;
  background: linear-gradient(180deg, rgba(255,255,255,0.94), rgba(247,250,255,0.88));
}

.stat-card strong {
  display: block;
  font-family: "Montserrat", sans-serif;
  font-size: clamp(2rem, 5vw, 3rem);
  line-height: 1;
  background: linear-gradient(135deg, var(--primary), #fd5db9);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.stat-card span {
  color: var(--muted);
}

.stat-card-highlight {
  background: linear-gradient(180deg, rgba(124,77,255,0.12), rgba(255,91,189,0.08), rgba(255,255,255,0.96));
}

.stat-card-highlight span {
  max-width: 18ch;
  margin: .35rem auto 0;
  display: block;
  font-weight: 700;
}

/* =========================
   PROYECTO
========================= */

.project-section {
  background:
    radial-gradient(circle at top right, rgba(255,139,211,0.16), transparent 22%),
    radial-gradient(circle at bottom left, rgba(70,215,255,0.14), transparent 20%),
    linear-gradient(135deg, rgba(9,18,38,0.98), rgba(25,33,82,0.96));
  color: #f8fbff;
}

.project-section .eyebrow {
  color: #ffd86d;
}

.project-section .project-copy p,
.project-section li {
  color: rgba(248, 251, 255, 0.86);
}

.project-grid {
  display: grid;
  grid-template-columns: .95fr 1.05fr;
  gap: 1.7rem;
  align-items: center;
}

.process-flow {
  display: flex;
  flex-wrap: wrap;
  gap: .7rem;
  margin: 1.5rem 0;
}

.process-flow span {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  padding: .7rem .95rem;
  border-radius: 999px;
  background: rgba(255,255,255,0.09);
  border: 1px solid rgba(255,255,255,0.12);
  font-weight: 700;
}

.check-list {
  list-style: none;
  padding: 0;
  margin: 1.3rem 0 0;
}

.check-list li {
  position: relative;
  padding-left: 1.6rem;
  margin-bottom: .8rem;
}

.check-list li::before {
  content: "•";
  position: absolute;
  left: .25rem;
  color: #ffd86d;
  font-size: 1.3rem;
}

.gallery {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
}

.gallery-item {
  overflow: hidden;
  border-radius: var(--radius-lg);
  border: 1px solid rgba(255,255,255,0.12);
  background: rgba(255,255,255,0.08);
  box-shadow: var(--shadow-soft);
}

.gallery-item img {
  height: 100%;
  object-fit: cover;
  aspect-ratio: 16 / 11;
}

.gallery-item.large {
  grid-column: 1 / -1;
}

/* =========================
   PERFIL
========================= */

.split-panels {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.25rem;
}

.panel ul,
.schedule-list {
  margin: 0;
  padding-left: 1.2rem;
}

.panel li,
.schedule-list li {
  margin-bottom: .8rem;
}

.credential-note {
  margin-top: 1.1rem;
  padding: 1rem 1.05rem;
  border-radius: 18px;
  background: linear-gradient(135deg, rgba(124,77,255,0.12), rgba(70,215,255,0.12));
  border: 1px solid rgba(54,93,255,0.14);
  color: var(--text);
}

/* =========================
   CTA
========================= */

.cta-section {
  background: linear-gradient(135deg, rgba(255,211,71,0.15), rgba(54,93,255,0.08), rgba(70,215,255,0.1));
}

.cta-grid {
  display: grid;
  grid-template-columns: .95fr 1.05fr;
  gap: 1.25rem;
  align-items: center;
}

.schedule-card {
  background: linear-gradient(180deg, rgba(255,255,255,0.96), rgba(250,252,255,0.9));
}

.schedule-actions {
  margin-top: 1.2rem;
}

.link-cta {
  display: inline-flex;
  align-items: center;
  gap: .45rem;
  font-family: "Montserrat", sans-serif;
  font-weight: 800;
  color: var(--primary);
}

.link-cta::after {
  content: "→";
  transition: transform .2s ease;
}

.link-cta:hover::after,
.link-cta:focus-visible::after {
  transform: translateX(3px);
}

/* =========================
   FAQ
========================= */

.faq-list {
  display: grid;
  gap: .9rem;
}

.faq-list details {
  background: rgba(255,255,255,0.82);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  padding: 1rem 1.1rem;
  box-shadow: 0 10px 22px rgba(16,33,64,0.06);
}

.faq-list summary {
  cursor: pointer;
  font-family: "Montserrat", sans-serif;
  font-weight: 800;
  list-style: none;
}

.faq-list summary::-webkit-details-marker {
  display: none;
}

.faq-list p {
  margin: .8rem 0 0;
  color: var(--muted);
}

/* =========================
   FOOTER
========================= */

.site-footer {
  padding: 2.5rem 0 3rem;
  color: #eef4ff;
  background: linear-gradient(180deg, #141c45 0%, #091226 100%);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.15fr 1fr 1fr;
  gap: 1.5rem;
}

.site-footer h2,
.site-footer h3 {
  font-family: "Montserrat", sans-serif;
  margin: 0 0 .7rem;
}

.site-footer p,
.site-footer a {
  color: rgba(238, 244, 255, 0.88);
}

/* =========================
   ANIMACIONES
========================= */

.reveal {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity .65s ease, transform .65s ease;
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.texto-gradient1 {
  background: linear-gradient(90deg, #0ade18, #03b7f3);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* =========================
   RESPONSIVE
========================= */

@media (max-width: 1100px) {
  .hero-grid,
  .project-grid,
  .cta-grid,
  .intro-grid,
  .footer-grid {
    grid-template-columns: 1fr;
  }

  .four-col {
    grid-template-columns: repeat(2, 1fr);
  }

  .benefits-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .benefits-grid > .info-card:not(.featured-benefit) {
    grid-column: span 1;
  }

  .featured-benefit {
    grid-column: 1 / -1;
    grid-template-columns: 52px 200px 1fr;
    grid-template-areas:
      "badge title text"
      "badge title note";
  }

  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .hero-mini-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .hero-visual {
    min-height: 480px;
  }

  .hero-card-main {
    min-height: 480px;
  }
}

@media (max-width: 860px) {
  .menu-toggle {
    display: block;
  }

  .site-nav {
    display: none;
    position: absolute;
    top: calc(100% + .5rem);
    right: .7rem;
    width: min(340px, calc(100% - 1.4rem));
    padding: 1rem;
    border-radius: 20px;
    background: rgba(255,255,255,0.98);
    border: 1px solid rgba(16, 33, 64, 0.1);
    box-shadow: var(--shadow);
    flex-direction: column;
    align-items: flex-start;
    gap: .85rem;
  }

  .site-nav.is-open {
    display: flex;
  }

  .learn-grid,
  .semester-grid,
  .split-panels,
  .three-col,
  .four-col,
  .stats-grid,
  .hero-mini-grid {
    grid-template-columns: 1fr;
  }

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

  .benefits-grid > .info-card:not(.featured-benefit),
  .featured-benefit {
    grid-column: 1 / -1;
  }

  .featured-benefit {
    display: block;
    min-height: auto;
  }

  .featured-benefit .icon-badge {
    margin-bottom: 1rem;
  }

  .featured-benefit h3 {
    margin: 0 0 .7rem;
  }

  .featured-benefit p {
    margin: 0;
  }

  .featured-benefit small {
    margin-top: .9rem;
  }

  .hero-card-floating {
    width: 165px;
    height: 118px;
  }

  .hero-tag-a {
    right: .8rem;
    bottom: 1rem;
  }

  .hero-tag-b {
    left: .8rem;
    top: .8rem;
  }
}

@media (max-width: 620px) {
  p,
  li {
    font-size: 1rem;
  }

  .section {
    padding: 4rem 0;
  }

  .header-inner {
    min-height: 70px;
  }

  .brand-mark {
    width: 46px;
    height: 46px;
    border-radius: 14px;
    font-size: .95rem;
  }

  .brand-text {
    font-size: .79rem;
    max-width: 210px;
  }

  .hero {
    padding-top: 2.4rem;
  }

  .hero h1 {
    font-size: clamp(2.15rem, 12vw, 3.2rem);
    max-width: none;
  }

  .lead {
    font-size: 1.05rem;
  }

  .hero-visual {
    min-height: 330px;
    margin-top: .3rem;
  }

  .hero-card-main {
    min-height: 330px;
  }

  .hero-card-a {
    left: .15rem;
    bottom: -0.8rem;
  }

  .hero-card-b {
    right: .15rem;
    top: -0.8rem;
  }

  .hero-card-floating {
    width: 130px;
    height: 96px;
    border-width: 4px;
  }

  .hero-tag {
    min-height: 34px;
    padding: .45rem .72rem;
    font-size: .66rem;
  }

  .intro-grid,
  .info-card,
  .learn-copy,
  .semester-card,
  .stat-card,
  .panel,
  .schedule-card,
  .faq-list details {
    padding-left: 1rem;
    padding-right: 1rem;
  }

  .section-heading {
    margin-bottom: 1.5rem;
  }

  .section-heading h2,
  .intro-grid h2,
  .project-copy h2,
  .cta-copy h2 {
    font-size: clamp(1.8rem, 9vw, 2.4rem);
  }

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