:root {
  --navy: #0b3142;
  --navy-deep: #06202b;
  --teal: #0f8b9e;
  --teal-light: #4fc3d1;
  --gold: #c9a24b;
  --ink: #16262e;
  --muted: #5b6b73;
  --bg: #ffffff;
  --bg-alt: #f4f8f9;
  --border: #e3ebed;
  --shadow: 0 20px 50px -20px rgba(11, 49, 66, 0.25);
  --radius: 16px;
  --font-head: "Poppins", sans-serif;
  --font-body: "Inter", sans-serif;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--ink);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }

.container {
  width: 100%;
  max-width: 1140px;
  margin: 0 auto;
  padding: 0 24px;
}

h1, h2, h3, h4 {
  font-family: var(--font-head);
  color: var(--navy);
  line-height: 1.15;
  margin: 0 0 16px;
}

h1 { font-size: clamp(2.6rem, 6vw, 4.5rem); font-weight: 800; letter-spacing: -0.02em; }
h2 { font-size: clamp(1.8rem, 3.6vw, 2.6rem); font-weight: 700; }
h3 { font-size: 1.3rem; font-weight: 600; }

p { line-height: 1.7; color: var(--muted); margin: 0 0 14px; }

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

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}

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

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-head);
  font-weight: 700;
  color: var(--navy);
  font-size: 1.05rem;
}

.logo-icon { width: 28px; height: 28px; color: var(--teal); flex-shrink: 0; }

.nav { display: flex; align-items: center; gap: 32px; }

.nav a {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--navy);
  transition: color 0.2s;
}

.nav a:hover { color: var(--teal); }

.nav-cta {
  background: var(--navy);
  color: #fff !important;
  padding: 10px 20px;
  border-radius: 999px;
  transition: background 0.2s;
}

.nav-cta:hover { background: var(--teal); color: #fff !important; }

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}

.nav-toggle span {
  width: 24px;
  height: 2px;
  background: var(--navy);
  border-radius: 2px;
}

/* Hero */
.hero {
  position: relative;
  padding: 120px 0 90px;
  overflow: hidden;
  background: linear-gradient(180deg, #ffffff 0%, var(--bg-alt) 100%);
}

.hero-bg {
  position: absolute;
  top: -200px;
  right: -200px;
  width: 700px;
  height: 700px;
  border-radius: 50%;
  background: radial-gradient(circle at 30% 30%, rgba(15, 139, 158, 0.18), transparent 70%);
  pointer-events: none;
}

.hero-inner { position: relative; max-width: 800px; }

.eyebrow {
  font-family: var(--font-head);
  color: var(--teal);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.82rem;
  margin-bottom: 18px;
}

.hero-subtitle {
  font-size: 1.15rem;
  max-width: 620px;
}

.hero-subtitle strong { color: var(--navy); }

.hero-actions { display: flex; gap: 16px; margin-top: 28px; flex-wrap: wrap; }

.btn {
  display: inline-block;
  padding: 15px 28px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.95rem;
  transition: transform 0.2s, box-shadow 0.2s, background 0.2s;
}

.btn-primary {
  background: var(--navy);
  color: #fff;
  box-shadow: var(--shadow);
}

.btn-primary:hover { background: var(--teal); transform: translateY(-2px); }

.btn-ghost {
  border: 1.5px solid var(--border);
  color: var(--navy);
}

.btn-ghost:hover { border-color: var(--teal); color: var(--teal); }

/* Stats */
.stats { padding: 50px 0; background: var(--navy); }

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
}

.stat { color: #fff; text-align: left; }

.stat-number {
  display: block;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: 2.4rem;
  color: var(--teal-light);
  margin-bottom: 6px;
}

.stat-label { font-size: 0.88rem; color: rgba(255, 255, 255, 0.75); line-height: 1.4; }

/* Sections */
.section { padding: 100px 0; }
.section-alt { background: var(--bg-alt); }
.section-dark { background: var(--navy-deep); color: #fff; }
.section-dark h2, .section-dark .section-tag { color: #fff; }
.section-dark p { color: rgba(255, 255, 255, 0.75); }

.section-tag {
  display: inline-block;
  font-family: var(--font-head);
  font-weight: 600;
  color: var(--teal);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-size: 0.8rem;
  margin-bottom: 14px;
}

.section-lead { max-width: 620px; font-size: 1.08rem; }

/* About */
.about-grid {
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  gap: 64px;
  align-items: center;
}

.about-tags { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 20px; }

.about-tags span {
  background: var(--bg-alt);
  border: 1px solid var(--border);
  padding: 8px 16px;
  border-radius: 999px;
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--navy);
}

.about-visual { display: flex; justify-content: center; }

.about-visual img {
  width: 100%;
  max-width: 340px;
  aspect-ratio: 4 / 5;
  object-fit: cover;
  border-radius: 24px;
  box-shadow: var(--shadow);
  border: 6px solid #fff;
}

/* Innovations */
.innovation-cards {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  margin-top: 48px;
}

.innovation-card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 40px;
  box-shadow: var(--shadow);
}

.innovation-icon {
  width: 56px;
  height: 56px;
  border-radius: 14px;
  background: var(--bg-alt);
  color: var(--teal);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
}

.innovation-icon svg { width: 28px; height: 28px; }

.innovation-year {
  display: inline-block;
  font-family: var(--font-head);
  font-weight: 700;
  color: var(--gold);
  font-size: 0.9rem;
  margin-bottom: 8px;
}

.innovation-facts {
  list-style: none;
  padding: 0;
  margin: 20px 0 0;
  border-top: 1px solid var(--border);
  padding-top: 20px;
}

.innovation-facts li {
  position: relative;
  padding-left: 22px;
  margin-bottom: 10px;
  font-size: 0.92rem;
  color: var(--navy);
  font-weight: 500;
}

.innovation-facts li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 8px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--teal);
}

/* Timeline */
.timeline {
  margin-top: 48px;
  border-left: 2px solid var(--border);
  padding-left: 40px;
}

.timeline-item {
  position: relative;
  padding-bottom: 40px;
}

.timeline-item:last-child { padding-bottom: 0; }

.timeline-item::before {
  content: "";
  position: absolute;
  left: -46px;
  top: 4px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--teal);
  border: 3px solid #fff;
  box-shadow: 0 0 0 2px var(--teal);
}

.timeline-year {
  display: inline-block;
  font-family: var(--font-head);
  font-weight: 700;
  color: var(--gold);
  margin-bottom: 6px;
}

.timeline-content h4 { margin: 0 0 6px; font-size: 1.1rem; color: var(--navy); }
.timeline-content p { margin: 0; }

/* Impact */
.impact-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 56px;
  align-items: center;
}

.link-external {
  display: inline-block;
  color: var(--teal-light);
  font-weight: 600;
  margin-top: 8px;
  border-bottom: 1px solid transparent;
  transition: border-color 0.2s;
}

.link-external:hover { border-color: var(--teal-light); }

.impact-numbers { display: flex; flex-direction: column; gap: 20px; }

.impact-card {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius);
  padding: 26px 30px;
}

.impact-card span {
  display: block;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: 2.2rem;
  color: var(--teal-light);
  margin-bottom: 6px;
}

.impact-card p { margin: 0; color: rgba(255, 255, 255, 0.8); font-size: 0.95rem; }

/* Media grid */
.media-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 48px;
}

.media-card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  cursor: pointer;
  transition: transform 0.25s;
  display: flex;
  flex-direction: column;
}

.media-card:hover { transform: translateY(-4px); }

.media-card-visual {
  position: relative;
  height: 200px;
  min-height: 200px;
  max-height: 200px;
  flex-shrink: 0;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 4px;
  padding: 16px;
  text-align: center;
  background: linear-gradient(135deg, var(--navy) 0%, var(--teal) 100%);
  border-bottom: 1px solid var(--border);
  color: #fff;
}

.media-card-badge {
  font-family: var(--font-head);
  font-weight: 800;
  font-size: 2.1rem;
  line-height: 1.1;
  letter-spacing: -0.02em;
}

.media-card-tag {
  font-size: 0.78rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: rgba(255, 255, 255, 0.75);
}

.media-card-visual--photo { padding: 0; background: var(--bg-alt); }

.media-card-visual--photo img {
  width: 100%;
  height: 100%;
  min-height: 0;
  object-fit: cover;
  display: block;
}

.media-card-icon-chip {
  position: absolute;
  top: 14px;
  right: 14px;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: rgba(11, 49, 66, 0.55);
  backdrop-filter: blur(2px);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
}

.media-card-icon-chip svg { width: 17px; height: 17px; }

.media-card-caption { padding: 18px 20px; }
.media-card-caption strong { display: block; font-family: var(--font-head); color: var(--navy); font-size: 0.95rem; margin-bottom: 6px; }
.media-card-caption span { font-size: 0.85rem; color: var(--muted); line-height: 1.5; display: block; }

/* CTA */
.cta-section { background: var(--bg-alt); text-align: center; }
.cta-inner { max-width: 620px; margin: 0 auto; }
.cta-inner p { margin-bottom: 28px; }

/* Footer */
.site-footer {
  background: var(--navy-deep);
  color: rgba(255, 255, 255, 0.7);
  padding: 48px 0;
}

.footer-inner { text-align: center; }
.site-footer .logo { justify-content: center; color: #fff; margin-bottom: 14px; }
.site-footer p { color: rgba(255, 255, 255, 0.6); font-size: 0.9rem; margin: 4px 0; }
.footer-note { font-size: 0.8rem; opacity: 0.7; }

.site-footer .footer-credit { font-size: 0.62rem; margin-top: 18px; }
.footer-credit a { color: var(--teal-light); font-weight: 600; border-bottom: 1px solid transparent; transition: border-color 0.2s; }
.footer-credit a:hover { border-color: var(--teal-light); }

/* Lightbox */
.lightbox {
  position: fixed;
  inset: 0;
  background: rgba(6, 32, 43, 0.92);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  padding: 40px;
}

.lightbox.active { display: flex; }

.lightbox img {
  max-width: 100%;
  max-height: 90vh;
  border-radius: 8px;
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.5);
}

.lightbox-close {
  position: absolute;
  top: 24px;
  right: 32px;
  background: none;
  border: none;
  color: #fff;
  font-size: 2.4rem;
  cursor: pointer;
  line-height: 1;
}

/* Reveal animation */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

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

/* Responsive */
@media (max-width: 900px) {
  .nav { position: fixed; top: 76px; left: 0; right: 0; background: #fff; flex-direction: column; align-items: flex-start; gap: 0; padding: 8px 24px 24px; border-bottom: 1px solid var(--border); transform: translateY(-130%); transition: transform 0.3s; }
  .nav.open { transform: translateY(0); }
  .nav a { padding: 14px 0; width: 100%; border-bottom: 1px solid var(--border); }
  .nav-cta { margin-top: 12px; text-align: center; }
  .nav-toggle { display: flex; }
  .stats-grid { grid-template-columns: 1fr 1fr; }
  .about-grid { grid-template-columns: 1fr; }
  .about-visual { order: -1; }
  .innovation-cards { grid-template-columns: 1fr; }
  .impact-grid { grid-template-columns: 1fr; }
  .media-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 560px) {
  .hero { padding: 100px 0 60px; }
  .stats-grid { grid-template-columns: 1fr 1fr; gap: 24px; }
  .section { padding: 70px 0; }
  .media-grid { grid-template-columns: 1fr; }
  .timeline { padding-left: 28px; }
  .timeline-item::before { left: -34px; }
}