/* ── Reset & Base ───────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --primary:    #0D1B2E;
  --primary-md: #142438;
  --accent:     #0EA5D0;
  --accent-lt:  #38C5F0;
  --blue:       #1565C0;
  --blue-lt:    #2196F3;
  --white:      #FFFFFF;
  --off-white:  #F5F7FA;
  --gray-lt:    #EAEdf2;
  --gray:       #8A94A6;
  --dark:       #1C2333;
  --text:       #2D3748;
  --shadow:     0 4px 24px rgba(13,27,46,.18);
  --shadow-lg:  0 8px 40px rgba(13,27,46,.28);
  --radius:     10px;
  --transition: .3s ease;
}

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', sans-serif;
  color: var(--text);
  background: var(--white);
  overflow-x: hidden;
}

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

.container {
  width: 100%;
  max-width: 1200px;
  margin-inline: auto;
  padding-inline: 24px;
}

/* ── Utility ────────────────────────────────────────── */
.badge {
  display: inline-block;
  font-size: .65rem;
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
  padding: 4px 12px;
  border-radius: 30px;
  background: rgba(14,165,208,.15);
  color: var(--accent);
  border: 1px solid rgba(14,165,208,.35);
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: 'Inter', sans-serif;
  font-size: .85rem;
  font-weight: 600;
  letter-spacing: .04em;
  text-transform: uppercase;
  padding: 13px 28px;
  min-height: 48px;
  min-width: 48px;
  border-radius: 6px;
  border: 2px solid transparent;
  cursor: pointer;
  transition: var(--transition);
  white-space: nowrap;
  touch-action: manipulation;
}

.btn-primary {
  background: var(--accent);
  color: var(--white);
  border-color: var(--accent);
}
.btn-primary:hover { background: var(--accent-lt); border-color: var(--accent-lt); transform: translateY(-2px); }

.btn-outline {
  background: transparent;
  color: var(--white);
  border-color: rgba(255,255,255,.6);
}
.btn-outline:hover { background: rgba(255,255,255,.1); border-color: var(--white); transform: translateY(-2px); }

.btn-outline-dark {
  background: transparent;
  color: var(--primary);
  border-color: var(--primary);
}
.btn-outline-dark:hover { background: var(--primary); color: var(--white); transform: translateY(-2px); }

.section-label {
  font-size: .75rem;
  font-weight: 700;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 12px;
}

.section-title {
  font-family: 'Playfair Display', serif;
  font-size: clamp(1.8rem, 3vw, 2.6rem);
  color: var(--primary);
  line-height: 1.25;
}

.section-title.light { color: var(--white); }

.section-sub {
  font-size: 1.05rem;
  color: var(--gray);
  line-height: 1.7;
  max-width: 680px;
}

/* ── Top bar ────────────────────────────────────────── */
.topbar {
  background: var(--primary);
  padding: 8px 0;
  font-size: .8rem;
  color: rgba(255,255,255,.75);
}

.topbar .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
}

.topbar-left, .topbar-right {
  display: flex;
  align-items: center;
  gap: 20px;
}

.topbar a { color: rgba(255,255,255,.75); transition: color .2s; }
.topbar a:hover { color: var(--accent-lt); }

.topbar-item { display: flex; align-items: center; gap: 6px; }

.topbar-social { display: flex; gap: 12px; }
.topbar-social a {
  width: 28px; height: 28px;
  border-radius: 50%;
  border: 1px solid rgba(255,255,255,.2);
  display: flex; align-items: center; justify-content: center;
  font-size: .75rem;
  transition: var(--transition);
}
.topbar-social a:hover { background: var(--accent); border-color: var(--accent); color: var(--white); }

.topbar-campus {
  background: var(--accent);
  color: var(--white) !important;
  padding: 3px 14px;
  border-radius: 4px;
  font-weight: 600;
  font-size: .75rem;
  letter-spacing: .04em;
}
.topbar-campus:hover { background: var(--accent-lt) !important; }

/* ── Header / Nav ───────────────────────────────────── */
.header {
  background: var(--primary);
  box-shadow: 0 2px 16px rgba(13,27,46,.5);
  position: sticky;
  top: 0;
  z-index: 1000;
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 0;
  gap: 24px;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 14px;
  text-decoration: none;
}

.nav-logo-img {
  height: 68px;
  width: auto;
  display: block;
  flex-shrink: 0;
}

.nav-logo-text {
  line-height: 1.2;
  border-left: 1px solid rgba(255,255,255,.2);
  padding-left: 14px;
}

.nav-logo-text .acronym {
  font-size: 1.2rem;
  font-weight: 800;
  color: var(--white);
  letter-spacing: .06em;
}

.nav-logo-text .full-name {
  font-size: .52rem;
  font-weight: 400;
  color: rgba(255,255,255,.65);
  text-transform: uppercase;
  letter-spacing: .1em;
  max-width: 220px;
  line-height: 1.4;
  margin-top: 2px;
}

.nav-links {
  display: flex;
  list-style: none;
  gap: 4px;
  align-items: center;
}

.nav-links a {
  font-size: .82rem;
  font-weight: 500;
  color: rgba(255,255,255,.85);
  padding: 7px 12px;
  border-radius: 6px;
  transition: var(--transition);
  white-space: nowrap;
}
.nav-links a:hover { color: var(--white); background: rgba(255,255,255,.1); }

.nav-links .has-dropdown { position: relative; }
.nav-links .has-dropdown > a::after {
  content: '▾';
  font-size: .65rem;
  margin-left: 4px;
  opacity: .6;
}

.dropdown {
  position: absolute;
  top: calc(100% + 8px);
  left: 0;
  background: var(--primary-md);
  border: 1px solid rgba(255,255,255,.12);
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  min-width: 220px;
  padding: 8px 0;
  opacity: 0;
  pointer-events: none;
  transform: translateY(8px);
  transition: var(--transition);
  z-index: 200;
}

.has-dropdown:hover .dropdown {
  opacity: 1;
  pointer-events: all;
  transform: translateY(0);
}

.dropdown a {
  display: block;
  padding: 9px 18px;
  font-size: .82rem;
  color: rgba(255,255,255,.8);
  border-radius: 0;
  white-space: nowrap;
}
.dropdown a:hover { background: rgba(255,255,255,.08); color: var(--white); }

.nav-cta { display: flex; gap: 8px; align-items: center; }

.hamburger {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 16px;
  flex-direction: column;
  gap: 5px;
  touch-action: manipulation;
  z-index: 9999;
  position: relative;
}
.hamburger span {
  display: block;
  width: 28px;
  height: 3px;
  background: var(--white);
  border-radius: 3px;
  transition: var(--transition);
}

/* ── Hero ───────────────────────────────────────────── */
.hero {
  position: relative;
  min-height: 92vh;
  display: flex;
  align-items: center;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background-image: url('https://images.pexels.com/photos/1438081/pexels-photo-1438081.jpeg?auto=compress&cs=tinysrgb&w=1600');
  background-size: cover;
  background-position: center 30%;
  filter: brightness(.45);
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(105deg, rgba(13,27,46,.82) 45%, rgba(13,27,46,.5) 100%);
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 680px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: .72rem;
  font-weight: 700;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--accent-lt);
  border: 1px solid rgba(14,165,208,.4);
  background: rgba(14,165,208,.12);
  padding: 6px 16px;
  border-radius: 30px;
  margin-bottom: 24px;
}
.hero-badge::before {
  content: '';
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--accent-lt);
}

.hero h1 {
  font-family: 'Playfair Display', serif;
  font-size: clamp(2.4rem, 5vw, 4rem);
  color: var(--white);
  line-height: 1.18;
  margin-bottom: 20px;
}

.hero h1 em {
  font-style: normal;
  color: var(--accent-lt);
}

.hero-sub {
  font-size: 1.1rem;
  color: rgba(255,255,255,.8);
  line-height: 1.75;
  margin-bottom: 36px;
}

.hero-btns {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

.hero-stats {
  display: flex;
  gap: 36px;
  margin-top: 56px;
  padding-top: 36px;
  border-top: 1px solid rgba(255,255,255,.15);
  flex-wrap: wrap;
}

.hero-stat-num {
  font-family: 'Playfair Display', serif;
  font-size: 2.2rem;
  font-weight: 700;
  color: var(--accent-lt);
  line-height: 1;
}

.hero-stat-label {
  font-size: .78rem;
  color: rgba(255,255,255,.65);
  text-transform: uppercase;
  letter-spacing: .06em;
  margin-top: 4px;
}

/* ── Identity ───────────────────────────────────────── */
.identity {
  padding: 96px 0;
  background: var(--white);
}

.identity-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.identity-img-wrap {
  position: relative;
}

.identity-img {
  border-radius: 14px;
  width: 100%;
  height: 480px;
  object-fit: cover;
  box-shadow: var(--shadow-lg);
}

.identity-card {
  position: absolute;
  bottom: -28px;
  right: -28px;
  background: var(--primary);
  color: var(--white);
  padding: 24px 28px;
  border-radius: 12px;
  box-shadow: var(--shadow-lg);
  max-width: 240px;
}

.identity-card-num {
  font-family: 'Playfair Display', serif;
  font-size: 2.4rem;
  font-weight: 700;
  color: var(--accent-lt);
}

.identity-card-text {
  font-size: .82rem;
  color: rgba(255,255,255,.75);
  line-height: 1.5;
  margin-top: 4px;
}

.identity-text { padding-right: 16px; }

.identity-text p {
  font-size: 1.05rem;
  color: var(--gray);
  line-height: 1.75;
  margin-top: 20px;
}

.identity-features {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-top: 32px;
}

.identity-feature {
  display: flex;
  align-items: flex-start;
  gap: 12px;
}

.identity-feature-icon {
  width: 36px; height: 36px;
  border-radius: 8px;
  background: rgba(14,165,208,.12);
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
  font-size: 1rem;
}

.identity-feature-text {
  font-size: .85rem;
  font-weight: 600;
  color: var(--primary);
  line-height: 1.4;
}

/* ── Programs ───────────────────────────────────────── */
.programs {
  padding: 96px 0;
  background: var(--off-white);
}

.programs-header {
  text-align: center;
  margin-bottom: 56px;
}

.programs-header .section-sub { margin-inline: auto; }

.tab-bar {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-bottom: 48px;
  flex-wrap: wrap;
}

.tab-btn {
  background: none;
  border: 2px solid var(--gray-lt);
  border-radius: 30px;
  padding: 10px 24px;
  font-family: 'Inter', sans-serif;
  font-size: .82rem;
  font-weight: 600;
  color: var(--gray);
  cursor: pointer;
  transition: var(--transition);
}
.tab-btn.active, .tab-btn:hover {
  background: var(--primary);
  border-color: var(--primary);
  color: var(--white);
}

.tab-panel { display: none; }
.tab-panel.active { display: grid; }

#panel-lic { grid-template-columns: repeat(3, 1fr); gap: 28px; }
#panel-pos { grid-template-columns: repeat(2, 1fr); gap: 28px; max-width: 860px; margin-inline: auto; }

.prog-card {
  background: var(--white);
  border-radius: 14px;
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}
.prog-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }

.prog-card-img {
  width: 100%;
  height: 200px;
  object-fit: cover;
}

.prog-card-body {
  padding: 24px;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.prog-card-badge {
  font-size: .63rem;
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--accent);
  border: 1px solid rgba(14,165,208,.3);
  background: rgba(14,165,208,.08);
  padding: 3px 10px;
  border-radius: 20px;
  display: inline-block;
  margin-bottom: 12px;
}

.prog-card h3 {
  font-family: 'Playfair Display', serif;
  font-size: 1.15rem;
  color: var(--primary);
  line-height: 1.3;
  margin-bottom: 12px;
}

.prog-card-meta {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
  margin-bottom: 14px;
}

.prog-meta-tag {
  font-size: .7rem;
  color: var(--gray);
  background: var(--off-white);
  padding: 3px 10px;
  border-radius: 4px;
}

.prog-card p {
  font-size: .85rem;
  color: var(--gray);
  line-height: 1.65;
  flex: 1;
  margin-bottom: 20px;
}

.prog-card-link {
  font-size: .78rem;
  font-weight: 700;
  color: var(--blue-lt);
  letter-spacing: .04em;
  text-transform: uppercase;
  display: flex;
  align-items: center;
  gap: 6px;
  transition: gap .2s;
  padding: 10px 0;
  min-height: 44px;
  touch-action: manipulation;
}
.prog-card-link::after { content: '→'; }
.prog-card-link:hover { color: var(--primary); gap: 10px; }

/* ── Values ─────────────────────────────────────────── */
.values {
  padding: 96px 0;
  background: var(--primary);
  position: relative;
  overflow: hidden;
}

.values::before {
  content: '';
  position: absolute;
  top: -80px; right: -80px;
  width: 400px; height: 400px;
  border-radius: 50%;
  background: rgba(14,165,208,.06);
}

.values::after {
  content: '';
  position: absolute;
  bottom: -120px; left: -60px;
  width: 500px; height: 500px;
  border-radius: 50%;
  background: rgba(255,255,255,.03);
}

.values-header {
  text-align: center;
  margin-bottom: 64px;
  position: relative; z-index: 1;
}

.values-header .section-sub {
  color: rgba(255,255,255,.6);
  margin-inline: auto;
}

.values-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  position: relative; z-index: 1;
}

.value-card {
  background: rgba(255,255,255,.05);
  border: 1px solid rgba(255,255,255,.09);
  border-radius: 12px;
  padding: 28px 22px;
  text-align: center;
  transition: var(--transition);
}
.value-card:hover {
  background: rgba(14,165,208,.12);
  border-color: rgba(14,165,208,.3);
  transform: translateY(-4px);
}

.value-icon {
  font-size: 1.8rem;
  margin-bottom: 12px;
  display: block;
}

.value-name {
  font-size: .9rem;
  font-weight: 700;
  color: var(--white);
  letter-spacing: .02em;
}

/* ── Modalidades ────────────────────────────────────── */
.modalities {
  padding: 96px 0;
  background: var(--white);
}

.modalities-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  margin-top: 56px;
}

.mod-card {
  border: 1px solid var(--gray-lt);
  border-radius: 14px;
  padding: 36px 28px;
  text-align: center;
  transition: var(--transition);
}
.mod-card:hover {
  border-color: var(--primary);
  box-shadow: var(--shadow);
  transform: translateY(-4px);
}

.mod-icon {
  width: 64px; height: 64px;
  border-radius: 14px;
  background: var(--off-white);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.6rem;
  margin: 0 auto 20px;
  transition: var(--transition);
}

.mod-card:hover .mod-icon {
  background: rgba(14,165,208,.12);
}

.mod-card h3 {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 10px;
}

.mod-card p {
  font-size: .87rem;
  color: var(--gray);
  line-height: 1.65;
}

/* ── Why CIPIE ──────────────────────────────────────── */
.why {
  padding: 96px 0;
  background: var(--off-white);
}

.why-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.why-list {
  list-style: none;
  margin-top: 32px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.why-list li {
  display: flex;
  gap: 16px;
  align-items: flex-start;
}

.why-check {
  width: 28px; height: 28px;
  border-radius: 50%;
  background: var(--primary);
  color: var(--white);
  display: flex; align-items: center; justify-content: center;
  font-size: .75rem;
  flex-shrink: 0;
  margin-top: 2px;
}

.why-list-text strong {
  display: block;
  font-size: .95rem;
  color: var(--primary);
  margin-bottom: 3px;
}

.why-list-text span {
  font-size: .85rem;
  color: var(--gray);
  line-height: 1.6;
}

.why-img-wrap { position: relative; }

.why-img {
  width: 100%;
  height: 500px;
  object-fit: cover;
  border-radius: 14px;
  box-shadow: var(--shadow-lg);
}

.why-badge-float {
  position: absolute;
  top: -24px; left: -24px;
  background: var(--accent);
  color: var(--white);
  border-radius: 12px;
  padding: 20px 24px;
  box-shadow: var(--shadow-lg);
  text-align: center;
}

.why-badge-float .num {
  font-family: 'Playfair Display', serif;
  font-size: 2rem;
  font-weight: 700;
  line-height: 1;
}

.why-badge-float .lbl {
  font-size: .7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .06em;
  opacity: .85;
  margin-top: 4px;
}

/* ── CTA Banner ─────────────────────────────────────── */
.cta-banner {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-md) 100%);
  padding: 72px 0;
  text-align: center;
}

.cta-banner h2 {
  font-family: 'Playfair Display', serif;
  font-size: clamp(1.8rem, 3.5vw, 2.8rem);
  color: var(--white);
  margin-bottom: 14px;
}

.cta-banner p {
  color: rgba(255,255,255,.7);
  font-size: 1.05rem;
  margin-bottom: 36px;
}

.cta-btns { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }

/* ── Footer ─────────────────────────────────────────── */
.footer {
  background: #0A1628;
  padding: 72px 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.4fr;
  gap: 48px;
  padding-bottom: 56px;
  border-bottom: 1px solid rgba(255,255,255,.07);
}

.footer-logo {
  margin-bottom: 18px;
}

.footer-logo-img {
  height: 80px;
  width: auto;
  display: block;
}

.footer-brand p {
  font-size: .85rem;
  color: rgba(255,255,255,.5);
  line-height: 1.7;
  margin-bottom: 24px;
  max-width: 300px;
}

.footer-social { display: flex; gap: 10px; }
.footer-social a {
  width: 36px; height: 36px;
  border-radius: 8px;
  border: 1px solid rgba(255,255,255,.12);
  display: flex; align-items: center; justify-content: center;
  color: rgba(255,255,255,.5);
  font-size: .85rem;
  transition: var(--transition);
}
.footer-social a:hover { background: var(--accent); border-color: var(--accent); color: var(--white); }

.footer-col h4 {
  font-size: .82rem;
  font-weight: 700;
  color: var(--white);
  letter-spacing: .06em;
  text-transform: uppercase;
  margin-bottom: 20px;
}

.footer-col ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-col ul a {
  font-size: .83rem;
  color: rgba(255,255,255,.5);
  transition: color .2s;
  display: flex;
  align-items: center;
  gap: 6px;
}
.footer-col ul a:hover { color: var(--accent-lt); }
.footer-col ul a::before {
  content: '›';
  font-size: 1rem;
  opacity: .4;
}

.footer-contact-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  margin-bottom: 14px;
}

.footer-contact-icon {
  width: 32px; height: 32px;
  background: rgba(255,255,255,.06);
  border-radius: 6px;
  display: flex; align-items: center; justify-content: center;
  font-size: .85rem;
  flex-shrink: 0;
}

.footer-contact-detail {
  font-size: .82rem;
  color: rgba(255,255,255,.5);
  line-height: 1.5;
}
.footer-contact-detail a { color: rgba(255,255,255,.7); }
.footer-contact-detail a:hover { color: var(--accent-lt); }

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 0;
  gap: 16px;
  flex-wrap: wrap;
}

.footer-bottom p {
  font-size: .78rem;
  color: rgba(255,255,255,.3);
}

.footer-bottom-links {
  display: flex;
  gap: 20px;
}
.footer-bottom-links a {
  font-size: .75rem;
  color: rgba(255,255,255,.3);
  transition: color .2s;
}
.footer-bottom-links a:hover { color: rgba(255,255,255,.65); }

/* ── WhatsApp FAB ───────────────────────────────────── */
.whatsapp-fab {
  position: fixed;
  bottom: 28px;
  right: 28px;
  width: 64px;
  height: 64px;
  background: #25D366;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 20px rgba(37,211,102,.45);
  z-index: 999;
  transition: transform .25s, box-shadow .25s;
  touch-action: manipulation;
}
.whatsapp-fab:hover { transform: scale(1.1); box-shadow: 0 6px 28px rgba(37,211,102,.6); }
.whatsapp-fab svg { width: 32px; height: 32px; fill: var(--white); }

/* ── Responsive ─────────────────────────────────────── */

/* ── Desktop wide (≤ 1200px) ───────────────────────── */
@media (max-width: 1200px) {
  .footer-grid { grid-template-columns: 1.5fr 1fr 1fr 1.2fr; gap: 32px; }
}

/* ── Tablet landscape (≤ 1024px) ───────────────────── */
@media (max-width: 1024px) {
  .identity-grid, .why-grid { grid-template-columns: 1fr; gap: 48px; }
  .identity-img-wrap { padding-bottom: 56px; }
  .identity-card { right: 0; bottom: 0; }
  .identity-img { height: 360px; }
  .why-img { height: 360px; }
  .why-img-wrap { order: -1; }
  .values-grid { grid-template-columns: repeat(2, 1fr); }
  #panel-lic { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

/* ── Nav collapse (≤ 960px) ─────────────────────────── */
@media (max-width: 960px) {
  .nav-links, .nav-cta { display: none; }
  .hamburger { display: flex; }
}

/* ── Tablet portrait (≤ 768px) ──────────────────────── */
@media (max-width: 768px) {
  .topbar .topbar-left { display: none; }
  .topbar .container { justify-content: center; }
  #panel-lic, #panel-pos { grid-template-columns: 1fr; }
  .modalities-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr; }
  .hero { min-height: 100svh; }
  .hero-stats { gap: 24px; }
  .values-grid { grid-template-columns: repeat(2, 1fr); gap: 14px; }
  .footer-bottom { flex-direction: column; text-align: center; }
  /* Reducir paddings verticales en tablet */
  .identity, .programs, .values, .modalities, .why { padding: 64px 0; }
  .cta-banner { padding: 56px 0; }
  .footer { padding-top: 56px; }
  .nav-logo-img { height: 52px; }
  .nav-logo-text .acronym { font-size: 1.05rem; }
  .why-img { height: auto; aspect-ratio: 16/9; }
  .why-badge-float { position: static; display: inline-block; margin: 0 0 24px; }
}

/* ── Mobile large (≤ 640px) ─────────────────────────── */
@media (max-width: 640px) {
  .hero-stats {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin-top: 36px;
    padding-top: 24px;
  }
  .modalities-grid { grid-template-columns: 1fr; }
  .tab-btn { padding: 10px 20px; font-size: .8rem; min-height: 44px; }
}

/* ── Mobile (≤ 480px) ───────────────────────────────── */
@media (max-width: 480px) {
  .container { padding-inline: 16px; }
  .hero-btns { flex-direction: column; align-items: stretch; }
  .hero-btns .btn { justify-content: center; }
  .cta-btns { flex-direction: column; align-items: center; }
  .cta-btns .btn { width: 100%; justify-content: center; }
  .values-grid { grid-template-columns: 1fr 1fr; }
  .hero-stats { gap: 12px; }
  .hero-stat-num { font-size: 1.8rem; }
  .nav-logo-text .full-name { display: none; }
  .nav-logo-text { border-left: none; padding-left: 0; }
  .identity, .programs, .values, .modalities, .why { padding: 48px 0; }
  .whatsapp-fab { bottom: 16px; right: 16px; z-index: 1099; }
  .chat-widget { bottom: 100px; right: 16px; }
  .identity-features { grid-template-columns: 1fr; }
  .identity-card { max-width: 100%; }
  .prog-hero-btns { flex-direction: column; align-items: stretch; }
  .prog-hero-btns .btn { justify-content: center; }
  .prog-cta .cta-btns { flex-direction: column; align-items: center; }
  .prog-cta .cta-btns .btn { width: 100%; justify-content: center; }
  /* Espacio para que los FABs fijos no tapen el pie de página */
  .footer { padding-bottom: 90px; }
}

/* ── Mobile pequeño (≤ 360px) ───────────────────────── */
@media (max-width: 360px) {
  .values-grid { grid-template-columns: 1fr; }
  .topbar-social { display: none; }
  .hero-stats { grid-template-columns: 1fr; }
  .hero-stat-num { font-size: 1.6rem; }
  .nav-logo-img { height: 44px; }
}

/* ── Nav mobile open ────────────────────────────────── */
/* Soporta ambas convenciones de clases usadas en las páginas:
   index.html → .nav.open  |  páginas internas → .nav.nav-open + .hamburger.active */

/* Menú: ocupa toda la pantalla */
.nav.open .nav-links,
.nav.nav-open .nav-links {
  display: flex;
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: var(--primary);
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 20px;
  padding: 80px 24px 100px; /* espacio para header arriba y CTA abajo */
  overflow-y: auto;
  z-index: 9000;
  list-style: none;
}

/* CTA: fijo en la parte inferior, por ENCIMA del menú */
.nav.open .nav-cta,
.nav.nav-open .nav-cta {
  display: flex;
  position: fixed;
  bottom: 28px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 9001;
  background: transparent;
  padding: 0;
  gap: 8px;
  white-space: nowrap;
}

.nav.open .nav-links a,
.nav.nav-open .nav-links a,
.nav.open .nav-cta a,
.nav.nav-open .nav-cta a {
  color: var(--white) !important;
  font-size: 1.1rem;
  padding: 16px 24px;
  min-height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* Hamburger siempre encima de los overlays */
.nav.open .hamburger,
.nav.nav-open .hamburger { z-index: 9999; }
.nav.open .hamburger span:nth-child(1),
.nav.nav-open .hamburger span:nth-child(1),
.hamburger.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.nav.open .hamburger span:nth-child(2),
.nav.nav-open .hamburger span:nth-child(2),
.hamburger.active span:nth-child(2) { opacity: 0; }
.nav.open .hamburger span:nth-child(3),
.nav.nav-open .hamburger span:nth-child(3),
.hamburger.active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }
.nav.open .dropdown,
.nav.nav-open .dropdown { display: none; }

/* Ocultar chat widget cuando el menú móvil está abierto */
body:has(.nav.open) .chat-widget,
body:has(.nav.nav-open) .chat-widget { display: none; }

/* ── Chat Widget ────────────────────────────────────── */
.chat-widget {
  position: fixed;
  bottom: 100px;
  right: 28px;
  z-index: 1100;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 12px;
  /* El contenedor transparente NO debe capturar eventos de puntero;
     solo los hijos interactivos (fab, panel activo) los reciben. */
  pointer-events: none;
}
.chat-fab,
.chat-panel.active { pointer-events: auto; }

/* Panel */
.chat-panel {
  width: 340px;
  background: var(--white);
  border-radius: 16px;
  box-shadow: 0 8px 48px rgba(13,27,46,.28);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  opacity: 0;
  pointer-events: none;
  transform: translateY(16px) scale(.97);
  transition: opacity .25s ease, transform .25s ease;
  transform-origin: bottom right;
}

.chat-panel.active {
  opacity: 1;
  pointer-events: all;
  transform: translateY(0) scale(1);
}

/* Header */
.chat-header {
  background: var(--primary);
  padding: 14px 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.chat-header-info {
  display: flex;
  align-items: center;
  gap: 10px;
}

.chat-avatar {
  width: 36px; height: 36px;
  border-radius: 50%;
  background: var(--accent);
  color: var(--white);
  font-weight: 800;
  font-size: .95rem;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}

.chat-title {
  font-size: .95rem;
  font-weight: 700;
  color: var(--white);
}

.chat-subtitle {
  font-size: .72rem;
  color: rgba(255,255,255,.65);
  margin-top: 1px;
}

.chat-close {
  background: none;
  border: none;
  color: rgba(255,255,255,.7);
  font-size: 1rem;
  cursor: pointer;
  padding: 4px 6px;
  border-radius: 4px;
  transition: color .2s, background .2s;
  line-height: 1;
}
.chat-close:hover { color: var(--white); background: rgba(255,255,255,.1); }

/* Messages */
.chat-messages {
  flex: 1;
  padding: 16px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 10px;
  max-height: 280px;
  background: #F7F9FC;
}

.chat-msg { max-width: 88%; }

.chat-msg.bot { align-self: flex-start; }
.chat-msg.user { align-self: flex-end; }

.chat-msg p {
  margin: 0;
  font-size: .84rem;
  line-height: 1.55;
  padding: 10px 14px;
  border-radius: 12px;
  word-break: break-word;
}

.chat-msg.bot p {
  background: var(--white);
  color: var(--text);
  border-radius: 4px 12px 12px 12px;
  box-shadow: 0 1px 4px rgba(13,27,46,.08);
}

.chat-msg.user p {
  background: var(--primary);
  color: var(--white);
  border-radius: 12px 4px 12px 12px;
}

/* Typing dots */
.chat-msg.typing p {
  display: flex;
  gap: 5px;
  align-items: center;
  padding: 12px 16px;
}

.dot {
  width: 7px; height: 7px;
  background: var(--gray);
  border-radius: 50%;
  display: inline-block;
  animation: dotBounce 1.2s infinite ease-in-out;
}
.dot:nth-child(2) { animation-delay: .2s; }
.dot:nth-child(3) { animation-delay: .4s; }

@keyframes dotBounce {
  0%, 80%, 100% { transform: translateY(0); opacity: .4; }
  40%           { transform: translateY(-6px); opacity: 1; }
}

/* Chips */
.chat-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  padding: 8px 14px 10px;
  background: #F7F9FC;
  border-top: 1px solid var(--gray-lt);
}

.chip {
  background: var(--white);
  border: 1px solid var(--gray-lt);
  border-radius: 20px;
  padding: 5px 14px;
  font-family: 'Inter', sans-serif;
  font-size: .75rem;
  font-weight: 500;
  color: var(--primary);
  cursor: pointer;
  transition: var(--transition);
}
.chip:hover {
  background: var(--primary);
  border-color: var(--primary);
  color: var(--white);
}

/* Input row */
.chat-input-row {
  display: flex;
  gap: 8px;
  padding: 12px 14px;
  border-top: 1px solid var(--gray-lt);
  background: var(--white);
}

.chat-input {
  flex: 1;
  border: 1px solid var(--gray-lt);
  border-radius: 8px;
  padding: 9px 12px;
  font-family: 'Inter', sans-serif;
  font-size: .84rem;
  color: var(--text);
  outline: none;
  transition: border-color .2s;
}
.chat-input:focus { border-color: var(--accent); }

.chat-send {
  width: 38px; height: 38px;
  background: var(--primary);
  border: none;
  border-radius: 8px;
  cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
  transition: background .2s;
}
.chat-send:hover { background: var(--accent); }
.chat-send svg { width: 16px; height: 16px; fill: var(--white); }

/* FAB */
.chat-fab {
  width: 64px;
  height: 64px;
  background: var(--primary);
  border: none;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 20px rgba(13,27,46,.35);
  position: relative;
  transition: transform .25s, box-shadow .25s, background .2s;
  touch-action: manipulation;
}
.chat-fab:hover { transform: scale(1.1); background: var(--accent); box-shadow: 0 6px 28px rgba(14,165,208,.45); }

.chat-fab-icon { line-height: 0; }
.chat-fab-icon svg { width: 22px; height: 22px; fill: var(--white); }
.chat-fab-close { font-size: 1.1rem; color: var(--white); font-weight: 700; }

.chat-fab-badge {
  position: absolute;
  top: -2px; right: -2px;
  background: var(--accent);
  color: var(--white);
  font-size: .6rem;
  font-weight: 800;
  letter-spacing: .04em;
  padding: 2px 5px;
  border-radius: 8px;
  line-height: 1.4;
}

@media (max-width: 480px) {
  .chat-panel { width: calc(100vw - 32px); }
  .chat-widget { right: 16px; bottom: 90px; }
}

/* ── Inscripción Modal ──────────────────────────────── */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(13,27,46,.78);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 11000;
  padding: 20px;
  opacity: 0;
  visibility: hidden;
  transition: opacity .3s, visibility .3s;
}
.modal-overlay.active { opacity: 1; visibility: visible; }

.modal-card {
  background: var(--white);
  border-radius: var(--radius);
  padding: 40px 44px;
  max-width: 700px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  position: relative;
  transform: translateY(24px);
  transition: transform .3s;
  box-shadow: var(--shadow-lg);
}
.modal-overlay.active .modal-card { transform: translateY(0); }

.modal-close {
  position: absolute;
  top: 14px; right: 14px;
  background: none;
  border: none;
  font-size: 1.15rem;
  cursor: pointer;
  color: var(--gray);
  width: 36px; height: 36px;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  transition: background .2s, color .2s;
}
.modal-close:hover { background: var(--gray-lt); color: var(--primary); }

.modal-header { margin-bottom: 26px; }
.modal-title {
  font-family: 'Playfair Display', serif;
  font-size: 1.75rem;
  color: var(--primary);
  line-height: 1.2;
  margin-top: 8px;
}
.modal-sub { color: var(--gray); margin-top: 8px; font-size: .93rem; }

.inscripcion-form .form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-bottom: 16px;
}
.form-group { display: flex; flex-direction: column; gap: 5px; }
.form-group label {
  font-size: .8rem;
  font-weight: 600;
  color: var(--primary);
  letter-spacing: .02em;
}
.form-group input,
.form-group select,
.form-group textarea {
  border: 1.5px solid var(--gray-lt);
  border-radius: 6px;
  padding: 10px 13px;
  font-family: 'Inter', sans-serif;
  font-size: .88rem;
  color: var(--text);
  background: var(--white);
  outline: none;
  transition: border-color .2s, box-shadow .2s;
  width: 100%;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(14,165,208,.15);
}
.form-group input.invalid,
.form-group select.invalid { border-color: #e53e3e; }
.form-group textarea { resize: vertical; min-height: 78px; }
.req { color: var(--accent); }

.form-check {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin-bottom: 22px;
  font-size: .8rem;
  color: var(--gray);
  line-height: 1.55;
}
.form-check input[type="checkbox"] {
  width: 15px; height: 15px;
  flex-shrink: 0;
  margin-top: 2px;
  accent-color: var(--accent);
  cursor: pointer;
}
.form-check.invalid-check { color: #e53e3e; }
.form-check a { color: var(--accent); text-decoration: underline; }
.form-submit-btn { width: 100%; justify-content: center; padding: 14px 28px; font-size: .88rem; }

@media (max-width: 600px) {
  .modal-card { padding: 28px 18px; }
  .inscripcion-form .form-row { grid-template-columns: 1fr; }
}

/* ═══════════════════════════════════════════════════════
   Páginas de Programa (licenciaturas / posgrados)
   ═══════════════════════════════════════════════════════ */
.prog-hero {
  background: var(--primary);
  padding: 80px 0 60px;
  position: relative;
  overflow: hidden;
}
.prog-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  opacity: .18;
}
/* Imagen de fondo del hero por página */
.prog-hero.hero-pedagogia::before { background-image: url('https://images.pexels.com/photos/4144923/pexels-photo-4144923.jpeg?auto=compress&cs=tinysrgb&w=1600'); }
.prog-hero.hero-derecho::before   { background-image: url('https://images.pexels.com/photos/6077326/pexels-photo-6077326.jpeg?auto=compress&cs=tinysrgb&w=1600'); }
.prog-hero.hero-doctorado::before { background-image: url('https://images.pexels.com/photos/3228684/pexels-photo-3228684.jpeg?auto=compress&cs=tinysrgb&w=1600'); }
.prog-hero.hero-mce::before       { background-image: url('https://images.pexels.com/photos/4145153/pexels-photo-4145153.jpeg?auto=compress&cs=tinysrgb&w=1600'); }
.prog-hero.hero-mjo::before       { background-image: url('https://images.pexels.com/photos/5669619/pexels-photo-5669619.jpeg?auto=compress&cs=tinysrgb&w=1600'); }

.prog-hero-inner {
  position: relative;
  z-index: 1;
}
.prog-hero-back {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: rgba(255,255,255,.65);
  font-size: .8rem;
  font-weight: 500;
  margin-bottom: 32px;
  transition: color .2s;
}
.prog-hero-back:hover { color: var(--accent-lt); }
.prog-hero-back::before { content: '←'; }
.prog-hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: .72rem;
  font-weight: 700;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--accent-lt);
  border: 1px solid rgba(14,165,208,.4);
  background: rgba(14,165,208,.12);
  padding: 6px 16px;
  border-radius: 30px;
  margin-bottom: 20px;
}
.prog-hero h1 {
  font-family: 'Playfair Display', serif;
  font-size: clamp(2rem, 4.5vw, 3.4rem);
  color: var(--white);
  line-height: 1.2;
  margin-bottom: 18px;
}
.prog-hero-sub {
  font-size: 1rem;
  color: rgba(255,255,255,.75);
  line-height: 1.7;
  max-width: 640px;
  margin-bottom: 36px;
}
.prog-hero-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 36px;
}
.prog-hero-tag {
  background: rgba(255,255,255,.12);
  border: 1px solid rgba(255,255,255,.2);
  color: rgba(255,255,255,.9);
  font-size: .78rem;
  font-weight: 600;
  padding: 6px 16px;
  border-radius: 30px;
  letter-spacing: .04em;
}
.prog-hero-btns {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

/* Stats bar */
.prog-stats {
  background: var(--off-white);
  border-bottom: 1px solid var(--gray-lt);
}
.prog-stats-inner {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 0;
}
.prog-stat-item {
  padding: 28px 24px;
  border-right: 1px solid var(--gray-lt);
  text-align: center;
}
.prog-stat-item:last-child { border-right: none; }
.prog-stat-icon {
  font-size: 1.4rem;
  margin-bottom: 10px;
}
.prog-stat-label {
  font-size: .68rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .1em;
  color: var(--gray);
  margin-bottom: 6px;
}
.prog-stat-value {
  font-size: 1rem;
  font-weight: 700;
  color: var(--primary);
  line-height: 1.3;
}

/* Description section */
.prog-desc {
  padding: 80px 0;
  background: var(--white);
}
.prog-desc-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: start;
}
.prog-desc-text h2 {
  font-family: 'Playfair Display', serif;
  font-size: clamp(1.6rem, 2.8vw, 2.2rem);
  color: var(--primary);
  line-height: 1.3;
  margin-bottom: 20px;
}
.prog-desc-text p {
  font-size: .97rem;
  color: var(--text);
  line-height: 1.8;
  margin-bottom: 16px;
}
.prog-desc-text p:last-child { margin-bottom: 0; }

/* Fields section */
.prog-fields {
  background: var(--off-white);
  border-radius: var(--radius);
  padding: 32px;
}
.prog-fields h3 {
  font-family: 'Playfair Display', serif;
  font-size: 1.2rem;
  color: var(--primary);
  margin-bottom: 20px;
}
.prog-field-item {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  margin-bottom: 18px;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--gray-lt);
}
.prog-field-item:last-child {
  margin-bottom: 0;
  padding-bottom: 0;
  border-bottom: none;
}
.prog-field-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
  flex-shrink: 0;
  margin-top: 6px;
}
.prog-field-content strong {
  display: block;
  font-size: .9rem;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 4px;
}
.prog-field-content span {
  font-size: .85rem;
  color: var(--gray);
  line-height: 1.6;
}

/* Quote */
.prog-quote {
  background: var(--primary);
  padding: 56px 0;
}
.prog-quote-inner {
  max-width: 760px;
  margin: 0 auto;
  text-align: center;
}
.prog-quote-text {
  font-family: 'Playfair Display', serif;
  font-size: clamp(1.1rem, 2.2vw, 1.5rem);
  color: var(--white);
  line-height: 1.6;
  margin-bottom: 16px;
}
.prog-quote-text::before { content: '\201C'; }
.prog-quote-text::after  { content: '\201D'; }
.prog-quote-author {
  font-size: .85rem;
  color: var(--accent-lt);
  font-weight: 600;
  letter-spacing: .06em;
}

/* Curriculum */
.prog-curriculum {
  padding: 80px 0;
  background: var(--white);
}
.prog-curriculum-header {
  text-align: center;
  margin-bottom: 56px;
}
.prog-curriculum-header h2 {
  font-family: 'Playfair Display', serif;
  font-size: clamp(1.8rem, 3vw, 2.4rem);
  color: var(--primary);
  margin-bottom: 14px;
}
.prog-curriculum-header p {
  font-size: 1rem;
  color: var(--gray);
  max-width: 580px;
  margin: 0 auto;
  line-height: 1.7;
}
.cuatri-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 24px;
}
.cuatri-card {
  border: 1px solid var(--gray-lt);
  border-radius: var(--radius);
  overflow: hidden;
  transition: box-shadow var(--transition), transform var(--transition);
}
.cuatri-card:hover {
  box-shadow: var(--shadow);
  transform: translateY(-3px);
}
.cuatri-card-header {
  background: var(--primary);
  padding: 14px 20px;
  display: flex;
  align-items: center;
  gap: 14px;
}
.cuatri-num {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--accent);
  color: var(--white);
  font-size: .78rem;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  letter-spacing: .02em;
}
.cuatri-title {
  font-size: .82rem;
  font-weight: 700;
  color: var(--white);
  text-transform: uppercase;
  letter-spacing: .08em;
}
.cuatri-card-body {
  padding: 16px 20px;
  background: var(--white);
}
.cuatri-subject {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 8px 0;
  border-bottom: 1px solid var(--gray-lt);
  font-size: .875rem;
  color: var(--text);
  line-height: 1.5;
}
.cuatri-subject:last-child { border-bottom: none; padding-bottom: 0; }
.cuatri-subject::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  flex-shrink: 0;
  margin-top: 6px;
}

/* CTA */
.prog-cta {
  background: linear-gradient(135deg, var(--accent) 0%, var(--blue) 100%);
  padding: 72px 0;
  text-align: center;
}
.prog-cta h2 {
  font-family: 'Playfair Display', serif;
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  color: var(--white);
  margin-bottom: 14px;
}
.prog-cta p {
  color: rgba(255,255,255,.85);
  font-size: 1rem;
  margin-bottom: 32px;
  max-width: 520px;
  margin-inline: auto;
  line-height: 1.7;
}
.prog-cta .cta-btns {
  display: flex;
  gap: 14px;
  justify-content: center;
  flex-wrap: wrap;
}

@media (max-width: 768px) {
  .prog-desc-grid { grid-template-columns: 1fr; gap: 40px; }
}
@media (max-width: 640px) {
  .prog-stats-inner { grid-template-columns: repeat(2, 1fr); }
  .prog-stat-item { border-right: none; border-bottom: 1px solid var(--gray-lt); }
  .prog-stat-item:last-child { border-bottom: none; }
  .cuatri-grid { grid-template-columns: 1fr; }
}

/* ═══════════════════════════════════════════════════════
   Páginas de Validación (certificados / títulos)
   ═══════════════════════════════════════════════════════ */
.cert-hero {
  background: var(--primary);
  padding: 80px 0 60px;
  position: relative;
  overflow: hidden;
}
.cert-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: url('https://images.pexels.com/photos/5212345/pexels-photo-5212345.jpeg?auto=compress&cs=tinysrgb&w=1600');
  background-size: cover;
  background-position: center;
  opacity: .15;
}
.cert-hero-inner { position: relative; z-index: 1; }
.cert-hero-back {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: rgba(255,255,255,.65);
  font-size: .8rem;
  font-weight: 500;
  margin-bottom: 32px;
  transition: color .2s;
}
.cert-hero-back:hover { color: var(--accent-lt); }
.cert-hero-back::before { content: '←'; }
.cert-hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: .72rem;
  font-weight: 700;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--accent-lt);
  border: 1px solid rgba(14,165,208,.4);
  background: rgba(14,165,208,.12);
  padding: 6px 16px;
  border-radius: 30px;
  margin-bottom: 20px;
}
.cert-hero h1 {
  font-family: 'Playfair Display', serif;
  font-size: clamp(2rem, 4.5vw, 3.4rem);
  color: var(--white);
  line-height: 1.2;
  margin-bottom: 18px;
}
.cert-hero-sub {
  font-size: 1rem;
  color: rgba(255,255,255,.75);
  line-height: 1.7;
  max-width: 660px;
}

/* Buscador */
.cert-search {
  padding: 64px 0;
  background: var(--off-white);
}
.cert-card {
  max-width: 680px;
  margin-inline: auto;
  background: var(--white);
  border: 1px solid var(--gray-lt);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 40px;
}
.cert-card-label {
  font-size: .7rem;
  font-weight: 700;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 8px;
}
.cert-card h2 {
  font-family: 'Playfair Display', serif;
  font-size: 1.7rem;
  color: var(--primary);
  margin-bottom: 10px;
}
.cert-card p {
  font-size: .95rem;
  color: var(--gray);
  line-height: 1.6;
  margin-bottom: 26px;
}
.cert-form { display: flex; flex-direction: column; gap: 14px; }
.cert-input-row {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}
.cert-input {
  flex: 1 1 240px;
  font-family: 'Inter', sans-serif;
  font-size: .95rem;
  color: var(--text);
  padding: 14px 18px;
  border: 1.5px solid var(--gray-lt);
  border-radius: 8px;
  background: var(--off-white);
  transition: border-color .2s, box-shadow .2s;
}
.cert-input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(14,165,208,.15);
  background: var(--white);
}
.cert-input.invalid {
  border-color: #e23b3b;
  box-shadow: 0 0 0 3px rgba(226,59,59,.12);
}
.cert-submit { justify-content: center; }
.cert-error {
  display: none;
  font-size: .82rem;
  color: #e23b3b;
  font-weight: 500;
}
.cert-error.show { display: block; }
.cert-hint {
  font-size: .82rem;
  color: var(--gray);
  line-height: 1.6;
  margin-top: 4px;
}
.cert-hint strong { color: var(--text); }

/* Pasos / cómo funciona */
.cert-steps {
  padding: 64px 0 80px;
  background: var(--white);
}
.cert-steps-head {
  text-align: center;
  max-width: 640px;
  margin: 0 auto 44px;
}
.cert-steps-head h2 {
  font-family: 'Playfair Display', serif;
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  color: var(--primary);
  margin-bottom: 12px;
}
.cert-steps-head p {
  color: var(--gray);
  line-height: 1.7;
}
.cert-steps-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 24px;
}
.cert-step {
  background: var(--off-white);
  border: 1px solid var(--gray-lt);
  border-radius: var(--radius);
  padding: 30px 26px;
  text-align: center;
}
.cert-step-num {
  width: 46px;
  height: 46px;
  margin: 0 auto 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 1.1rem;
  color: var(--white);
  background: var(--accent);
  border-radius: 50%;
}
.cert-step h3 {
  font-size: 1.05rem;
  color: var(--primary);
  margin-bottom: 8px;
}
.cert-step p {
  font-size: .9rem;
  color: var(--gray);
  line-height: 1.6;
}
.cert-note {
  max-width: 680px;
  margin: 40px auto 0;
  padding: 18px 22px;
  background: rgba(14,165,208,.07);
  border: 1px solid rgba(14,165,208,.25);
  border-radius: 8px;
  font-size: .88rem;
  color: var(--text);
  line-height: 1.6;
}
.cert-note a { color: var(--accent); font-weight: 600; }

@media (max-width: 600px) {
  .cert-hero { padding: 56px 0 44px; }
  .cert-search { padding: 44px 0; }
  .cert-card { padding: 28px 20px; }
  .cert-card h2 { font-size: 1.4rem; }
  .cert-input-row { flex-direction: column; }
  .cert-input { flex: 1 1 auto; width: 100%; }
  .cert-submit { width: 100%; }
  .cert-steps { padding: 48px 0 60px; }
}