/* ============================================================
   CEPRE UNTELS — Design System
   Font: Inter (Desktop: Title-Large 120px / Title-Small 20px
                  Mobile : Title-Large 60px / Small 20px)
   Palette:
     Primary            #1A5276
     Primary Variant    #0E334D
     Secondary          #FFBA08
     Secondary Variant  #E69A00
     Background         #F7F5F0
     Surface            #FDFBF7
     Error              #D32F2F
     On Primary         #E0E0E0
     On Secondary       #1A1A1A
     On Background      #1A1A1A
     On Surface         #1A1A1A
     On Error           #E0E0E0
   ============================================================ */

:root {
  --primary: #1A5276;
  --primary-variant: #0E334D;
  --secondary: #FFBA08;
  --secondary-variant: #E69A00;
  --background: #F7F5F0;
  --surface: #FDFBF7;
  --error: #D32F2F;
  --on-primary: #E0E0E0;
  --on-secondary: #1A1A1A;
  --on-background: #1A1A1A;
  --on-surface: #1A1A1A;
  --on-error: #E0E0E0;

  --font: 'Inter', system-ui, -apple-system, sans-serif;
  --radius: 14px;
  --shadow: 0 10px 30px rgba(14, 51, 77, .10);
  --max: 1200px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--font);
  background: var(--background);
  color: var(--on-background);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }

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

/* ---------- Typography (Inter design system) ---------- */
.title-large {
  font-size: clamp(60px, 8vw, 120px);
  font-weight: 400;
  line-height: 1.02;
  letter-spacing: -0.02em;
}
.title-small, h2.section-title {
  font-size: clamp(34px, 4.4vw, 56px);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.1;
  color: var(--primary-variant);
}
.title-small { font-size: clamp(26px, 3vw, 40px); }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--primary);
}
.eyebrow::before {
  content: "";
  width: 28px; height: 2px;
  background: var(--secondary);
}

.lead { font-size: 18px; color: rgba(26,26,26,.72); max-width: 60ch; }

section { padding: 90px 0; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 15px 30px;
  border-radius: 999px;
  font-weight: 700;
  font-size: 15px;
  border: 0;
  cursor: pointer;
  transition: transform .2s ease, box-shadow .2s ease, background .2s ease;
}
.btn-secondary {
  background: var(--secondary);
  color: var(--on-secondary);
}
.btn-secondary:hover { background: var(--secondary-variant); transform: translateY(-2px); box-shadow: 0 12px 24px rgba(230,154,0,.35); }
.btn-primary {
  background: var(--primary);
  color: var(--on-primary);
}
.btn-primary:hover { background: var(--primary-variant); transform: translateY(-2px); box-shadow: 0 12px 24px rgba(14,51,77,.3); }
.btn-outline {
  background: transparent;
  color: var(--on-primary);
  border: 1.5px solid rgba(224,224,224,.5);
}
.btn-outline:hover { border-color: var(--secondary); color: var(--secondary); }

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(253,251,247,.9);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(26,82,118,.1);
}
.public-site-header {
  border-top: 0;
  box-shadow: none;
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 16px 0;
}
.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 800;
  letter-spacing: .04em;
  color: var(--primary-variant);
  font-size: 20px;
}
.brand-logo {
  display: block;
  width: 150px;
  height: auto;
}
.brand small { display: block; font-size: 10px; font-weight: 600; letter-spacing: .2em; color: var(--secondary-variant); }

.main-nav ul { display: flex; gap: 30px; align-items: center; }
.main-nav a {
  font-weight: 600;
  font-size: 15px;
  color: var(--on-surface);
  position: relative;
  padding: 6px 0;
  font-family: "Alatsi", sans-serif;
}
.main-nav a::after {
  content: "";
  position: absolute;
  left: 0; bottom: 0;
  width: 0; height: 3px;
  border-radius: 3px;
  background: var(--secondary);
  transition: width .25s ease;
}
.main-nav a:hover::after, .main-nav a.active::after { width: 100%; }
.main-nav a.active { color: var(--primary); }

.site-footer {
  padding: 70px max(22px, 7vw) 0;
  margin-top: 90px;
  color: var(--on-primary);
  background: var(--primary-variant);
}
.site-footer__content {
  width: min(100%, var(--max));
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 60px;
  padding-bottom: 50px;
}
.site-footer__brand {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 28px;
}
.site-footer__brand > img {
  display: block;
  width: min(100%, 260px);
  height: auto;
}
.site-footer__social {
  display: flex;
  gap: 10px;
}
.site-footer__social a {
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border: 1px solid rgba(255,255,255,.3);
  border-radius: 50%;
}
.site-footer__social img {
  width: 18px;
  height: 18px;
  object-fit: contain;
}
.site-footer__contact h2 {
  margin-bottom: 20px;
  color: var(--on-primary);
  font-family: "Alatsi", sans-serif;
  font-size: 24px;
}
.site-footer__contact p {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  margin: 0 0 16px;
  color: rgba(255,255,255,.82);
}
.footer-icon {
  flex: 0 0 18px;
  width: 18px;
  height: 18px;
  margin-top: 3px;
  filter: brightness(0) invert(1);
}
.site-footer__bottom {
  padding: 20px 0;
  border-top: 1px solid rgba(255,255,255,.15);
  color: rgba(255,255,255,.7);
  text-align: center;
  font-size: 13px;
}

.header-cta { display: flex; align-items: center; gap: 14px; }
.btn-campus {
  padding: 11px 22px;
  font-size: 13px;
  letter-spacing: .08em;
}

.menu-toggle {
  display: none;
  background: none;
  border: 0;
  font-size: 28px;
  cursor: pointer;
  color: var(--primary-variant);
}

/* ---------- Hero ---------- */
.hero {
  position: relative;
  background:
    linear-gradient(90deg, rgba(10, 39, 55, 0.68) 0%, rgba(17, 67, 92, 0.52) 38%, rgba(17, 75, 94, 0.55) 100%),
    url('../img/Imagenes/centropre.jpg') center/cover no-repeat;
  color: var(--on-primary);
  padding: 80px 0 90px;
  overflow: hidden;
}
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(9, 30, 42, 0.18) 0%, rgba(9, 30, 42, 0.02) 52%, rgba(9, 30, 42, 0.18) 100%);
  pointer-events: none;
}
.hero > .container {
  position: relative;
  z-index: 1;
}
.hero .eyebrow {
  color: var(--secondary);
  margin-bottom: 18px;
}
.hero-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
  align-items: center;
}
.hero .title-large {
  font-family: 'Alatsi', sans-serif;
  font-size: clamp(80px, 9vw, 220px);
  line-height: 0.82;
  letter-spacing: -0.06em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.95);
  font-weight: 400;
  margin: 10px 0 18px;
}
.hero p {
  color: rgba(224,224,224,.9);
  font-size: clamp(19px, 2vw, 24px);
  margin: 0 0 36px;
  max-width: 620px;
  line-height: 1.45;
}
.hero-actions {
  display: flex;
  gap: 18px;
  flex-wrap: wrap;
}
.hero .btn {
  min-width: 220px;
  justify-content: center;
  padding-block: 22px;
  font-size: 1.05rem;
}
.hero .btn-outline {
  border-color: rgba(255,255,255,0.7);
  color: rgba(255,255,255,0.94);
}

/* ---------- Modality cards ---------- */
.cards-2 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 28px;
  margin-top: 48px;
}
.mod-card {
  background: var(--surface);
  border-radius: var(--radius);
  padding: 38px;
  box-shadow: var(--shadow);
  border-top: 6px solid var(--secondary);
  transition: transform .25s ease, box-shadow .25s ease;
}
.mod-card:hover { transform: translateY(-6px); box-shadow: 0 22px 44px rgba(14,51,77,.16); }
.mod-card h3 { font-size: 24px; color: var(--primary-variant); margin-bottom: 14px; }
.mod-card .tag {
  display: inline-block;
  background: var(--primary);
  color: var(--on-primary);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .12em;
  text-transform: uppercase;
  padding: 6px 14px;
  border-radius: 999px;
  margin-bottom: 18px;
}
.mod-card p { color: rgba(26,26,26,.7); }

/* ---------- Courses ---------- */
.courses-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 28px;
  margin-top: 48px;
}
.course-card {
  background: var(--surface);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: transform .25s ease;
}
.course-card:hover { transform: translateY(-6px); }
.course-card .placeholder-media { aspect-ratio: 16/9; border: 0; }
.course-body { padding: 26px 28px 30px; }
.course-body h3 { color: var(--primary-variant); font-size: 21px; margin-bottom: 14px; }
.course-body ul li {
  font-size: 14.5px;
  color: rgba(26,26,26,.68);
  padding: 4px 0 4px 18px;
  position: relative;
}
.course-body ul li::before {
  content: "";
  position: absolute;
  left: 0; top: 12px;
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--secondary);
}

/* ---------- Stats ---------- */
.stats {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-variant) 100%);
  color: var(--on-primary);
  padding: 70px 0;
}
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 30px;
  text-align: center;
}
.stat b {
  display: block;
  font-size: clamp(42px, 5vw, 64px);
  font-weight: 800;
  color: var(--secondary);
  letter-spacing: -0.02em;
}
.stat span {
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: rgba(224,224,224,.8);
}

/* ---------- Events ---------- */
.events-list { margin-top: 44px; display: grid; gap: 16px; max-width: 760px; }
.event-item {
  display: flex;
  align-items: center;
  gap: 22px;
  background: var(--surface);
  padding: 22px 28px;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  transition: transform .2s ease;
}
.event-item:hover { transform: translateX(8px); }
.event-date {
  min-width: 66px;
  text-align: center;
  background: var(--primary);
  color: var(--on-primary);
  border-radius: 12px;
  padding: 10px 8px;
  font-weight: 800;
  line-height: 1.1;
}
.event-date b { display: block; font-size: 24px; color: var(--secondary); }
.event-date span { font-size: 11px; letter-spacing: .12em; text-transform: uppercase; }
.event-item h4 { color: var(--primary-variant); font-size: 18px; }
.event-item p { font-size: 14px; color: rgba(26,26,26,.6); }

/* ---------- Discover banner ---------- */
.discover {
  background: var(--surface);
}
.discover-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 50px;
  align-items: center;
}
.discover .placeholder-media,
.discover-grid .placeholder-media {
  border-radius: 20px;
  aspect-ratio: 16/10;
}

/* ---------- Page hero (interior pages) ---------- */
.page-hero {
  background:
    radial-gradient(700px 380px at 80% 0%, rgba(255,186,8,.16), transparent 60%),
    linear-gradient(160deg, var(--primary-variant), var(--primary));
  color: var(--on-primary);
  padding: 80px 0;
}
.page-hero .eyebrow { color: var(--secondary); }
.page-hero h1 { font-size: clamp(44px, 6vw, 84px); font-weight: 700; letter-spacing: -0.02em; margin-top: 10px; }
.page-hero p { color: rgba(224,224,224,.8); margin-top: 14px; max-width: 60ch; }

/* ---------- Teachers ---------- */
.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 40px 0;
}
.filter-btn {
  padding: 11px 22px;
  border-radius: 999px;
  border: 1.5px solid rgba(26,82,118,.25);
  background: transparent;
  color: var(--primary);
  font-weight: 700;
  font-size: 14px;
  cursor: pointer;
  transition: all .2s ease;
  font-family: var(--font);
}
.filter-btn:hover { border-color: var(--primary); }
.filter-btn.active { background: var(--primary); color: var(--on-primary); border-color: var(--primary); }

.teachers-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 26px;
}
.teacher-card {
  background: var(--surface);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: transform .25s ease, opacity .3s ease;
}
.teacher-card:hover { transform: translateY(-6px); }
.teacher-card.hidden { display: none; }
.avatar {
  aspect-ratio: 1/.85;
  display: grid;
  place-items: center;
  background: linear-gradient(150deg, var(--primary), var(--primary-variant));
  color: var(--secondary);
  font-size: 54px;
  font-weight: 800;
}
.teacher-body { padding: 24px; }
.teacher-body h3 { color: var(--primary-variant); font-size: 19px; }
.teacher-cat {
  display: inline-block;
  margin: 10px 0 6px;
  font-size: 11px;
  font-weight: 800;
  letter-spacing: .14em;
  color: var(--secondary-variant);
  text-transform: uppercase;
}
.teacher-spec { font-weight: 700; font-size: 14.5px; color: var(--primary); margin-bottom: 10px; }
.teacher-bio { font-size: 14px; color: rgba(26,26,26,.65); }

/* ---------- Contact ---------- */
.contact-grid {
  display: grid;
  grid-template-columns: 1.1fr .9fr;
  gap: 50px;
  align-items: start;
}
.contact-form {
  background: var(--surface);
  border-radius: var(--radius);
  padding: 42px;
  box-shadow: var(--shadow);
}
.contact-form h2 { color: var(--primary-variant); font-size: 28px; margin-bottom: 8px; }
.contact-form > p { color: rgba(26,26,26,.65); margin-bottom: 28px; }
.field { margin-bottom: 20px; }
.field label {
  display: block;
  font-weight: 700;
  font-size: 14px;
  color: var(--primary-variant);
  margin-bottom: 8px;
}
.field input, .field textarea {
  width: 100%;
  padding: 14px 16px;
  border: 1.5px solid rgba(26,82,118,.22);
  border-radius: 10px;
  font-family: var(--font);
  font-size: 15px;
  background: var(--background);
  color: var(--on-surface);
  transition: border .2s ease, box-shadow .2s ease;
}
.field input:focus, .field textarea:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 4px rgba(26,82,118,.12);
}
.form-note { 
  margin-top: 16px; 
  font-weight: 700; 
  color: #e00000 !important; 
  display: none; 
}
.form-note.show { 
  display: block; 
}

.info-list { display: grid; gap: 18px; margin-top: 10px; }
.info-item {
  display: flex;
  gap: 18px;
  background: var(--surface);
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: var(--shadow);
}
.info-icon {
  min-width: 50px; height: 50px;
  border-radius: 14px;
  background: var(--secondary);
  color: var(--on-secondary);
  display: grid;
  place-items: center;
  font-size: 22px;
}
.info-item > svg {
  flex: 0 0 50px;
  width: 50px;
  height: 50px;
  padding: 13px;
  border-radius: 14px;
  background: var(--secondary);
  color: var(--primary-variant);
}
.info-item > svg path { stroke: currentColor; }
.info-item h4 { color: var(--primary-variant); text-transform: uppercase; font-size: 13px; letter-spacing: .12em; margin-bottom: 4px; }
.info-item p { color: rgba(26,26,26,.7); font-size: 15px; }

.map-placeholder {
  margin-top: 24px;
  border-radius: var(--radius);
  border: 2px dashed rgba(26,82,118,.3);
  aspect-ratio: 16/8;
  display: grid;
  place-items: center;
  color: rgba(26,82,118,.55);
  font-weight: 700;
  letter-spacing: .18em;
  font-size: 13px;
  background:
    repeating-linear-gradient(0deg, rgba(26,82,118,.04) 0 1px, transparent 1px 40px),
    repeating-linear-gradient(90deg, rgba(26,82,118,.04) 0 1px, transparent 1px 40px),
    var(--surface);
}

/* ---------- FAQ ---------- */
.faq-list { max-width: 840px; margin: 48px auto 0; display: grid; gap: 14px; }
.faq-item {
  background: var(--surface);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
}
.faq-q {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
  padding: 24px 28px;
  background: none;
  border: 0;
  font-family: var(--font);
  font-size: 17px;
  font-weight: 700;
  color: var(--primary-variant);
  text-align: left;
  cursor: pointer;
}
.faq-q .chev {
  min-width: 34px; height: 34px;
  border-radius: 50%;
  background: var(--secondary);
  color: var(--on-secondary);
  display: grid;
  place-items: center;
  font-size: 18px;
  transition: transform .3s ease;
}
.faq-item.open .chev { transform: rotate(45deg); }
.faq-a {
  max-height: 0;
  overflow: hidden;
  transition: max-height .35s ease;
}
.faq-a p { padding: 0 28px 26px; color: rgba(26,26,26,.7); }

.cta-band {
  background: linear-gradient(135deg, var(--primary), var(--primary-variant));
  border-radius: 22px;
  color: var(--on-primary);
  padding: 60px;
  text-align: center;
  margin-top: 80px;
}
.cta-band h2 { font-size: clamp(28px, 4vw, 44px); margin-bottom: 14px; }
.cta-band h2 em { font-style: normal; color: var(--secondary); }
.cta-band p { color: rgba(224,224,224,.8); max-width: 56ch; margin: 0 auto 30px; }

/* ---------- Footer ---------- */
.site-footer {
  background: var(--primary-variant);
  color: var(--on-primary);
  padding: 70px 0 0;
  margin-top: 90px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 60px;
  padding-bottom: 50px;
}
.footer-brand .brand { color: var(--on-primary); margin-bottom: 18px; }
.footer-brand p { color: rgba(224,224,224,.7); max-width: 44ch; }
.footer-contact h4 {
  font-size: 14px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--secondary);
  margin-bottom: 18px;
}
.footer-contact li { padding: 6px 0; color: rgba(224,224,224,.8); font-size: 15px; display: flex; gap: 10px; }
.footer-contact li svg {
  flex: 0 0 20px;
  width: 20px;
  height: 20px;
  margin-top: 2px;
  color: var(--secondary);
}
.footer-contact li svg path { stroke: currentColor; }
.footer-bottom {
  border-top: 1px solid rgba(224,224,224,.15);
  padding: 22px 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
  font-size: 14px;
  color: rgba(224,224,224,.6);
}
.social { display: flex; gap: 12px; }
.social a {
  width: 38px; height: 38px;
  border-radius: 50%;
  border: 1px solid rgba(224,224,224,.3);
  display: grid;
  place-items: center;
  font-size: 13px;
  font-weight: 700;
  transition: all .2s ease;
}
.social a:hover { background: var(--secondary); color: var(--on-secondary); border-color: var(--secondary); }

/* ---------- Responsive ---------- */
@media (max-width: 900px) {
  section { padding: 64px 0; }
  .hero-grid, .discover-grid, .contact-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .site-footer__content { grid-template-columns: 1fr; gap: 36px; }
  .public-site-header {
    min-height: 58px;
    padding: 0 14px;
  }
  .public-site-header .header-inner {
    min-height: 58px;
    padding: 8px 0;
  }
  .public-site-header .brand-logo {
    width: auto;
    height: 40px;
    max-width: 150px;
    object-fit: contain;
  }
  .menu-toggle { display: block; }
  .main-nav {
    position: fixed;
    inset: 58px 0 auto 0;
    background: var(--surface);
    border-bottom: 1px solid rgba(26,82,118,.12);
    transform: translateY(-120%);
    transition: transform .3s ease;
    box-shadow: var(--shadow);
  }
  .main-nav.open { transform: translateY(0); }
  .main-nav ul { flex-direction: column; align-items: flex-start; padding: 24px 6%; gap: 18px; }
  .header-cta .btn-campus { display: none; }
  .cta-band { padding: 40px 26px; }
}