/* ========== HEADER ========== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-height);
  background: rgba(255,255,255,0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-light-grey);
  z-index: 1000;
  transition: height var(--transition-base), box-shadow var(--transition-base);
}
.site-header.scrolled {
  height: var(--header-height-scrolled);
  box-shadow: var(--shadow-sm);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  max-width: var(--container-wide);
  margin: 0 auto;
  padding: 0 var(--space-6);
}

.header-logo {
  display: flex;
  align-items: center;
  flex-shrink: 0;
}
.header-logo img {
  height: 36px;
  width: auto;
  transition: height var(--transition-base);
}
.site-header.scrolled .header-logo img {
  height: 30px;
}

.header-nav {
  display: flex;
  align-items: center;
  gap: var(--space-8);
}
.header-nav a {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-graphite-muted);
  transition: color var(--transition-fast);
  white-space: nowrap;
  position: relative;
}
.header-nav a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--color-teal);
  transform: scaleX(0);
  transition: transform var(--transition-fast);
}
.header-nav a:hover::after,
.header-nav a.active::after {
  transform: scaleX(1);
}
.header-nav a:hover,
.header-nav a.active {
  color: var(--color-graphite);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  flex-shrink: 0;
}

.lang-switch {
  display: flex;
  gap: var(--space-1);
  font-size: var(--text-sm);
  font-weight: 500;
}
.lang-switch a {
  color: var(--color-graphite-muted);
  padding: var(--space-1) var(--space-2);
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
}
.lang-switch a.active {
  color: var(--color-graphite);
  background: var(--color-off-white);
}
.lang-switch .separator {
  color: var(--color-border);
}

/* Mobile nav */
.nav-toggle {
  display: none;
  background: none;
  border: none;
  width: 32px;
  height: 32px;
  cursor: pointer;
  position: relative;
}
.nav-toggle span {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--color-graphite);
  margin: 5px auto;
  transition: all var(--transition-fast);
}
.nav-toggle.open span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}
.nav-toggle.open span:nth-child(2) {
  opacity: 0;
}
.nav-toggle.open span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

@media (max-width: 1024px) {
  .header-nav {
    position: fixed;
    inset: 0;
    background: var(--color-white);
    flex-direction: column;
    justify-content: center;
    gap: var(--space-8);
    transform: translateX(100%);
    transition: transform var(--transition-base);
    z-index: 999;
  }
  .header-nav.open {
    transform: translateX(0);
  }
  .header-nav a {
    font-size: var(--text-2xl);
    color: var(--color-graphite);
  }
  .header-nav a::after { display: none; }
  .nav-toggle {
    display: block;
    z-index: 1001;
  }
}

/* Offset for fixed header */
main {
  padding-top: var(--header-height);
}

/* ========== BUTTONS ========== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  font-size: var(--text-sm);
  font-weight: 600;
  border-radius: var(--radius-md);
  border: 2px solid transparent;
  cursor: pointer;
  transition: all var(--transition-base);
  white-space: nowrap;
  text-decoration: none;
  position: relative;
}

.btn--primary {
  background: linear-gradient(135deg, var(--color-teal) 0%, var(--color-teal-dark) 100%);
  color: var(--color-white);
  border-color: var(--color-teal);
  box-shadow: 0 2px 8px rgba(0, 151, 167, 0.3);
}
.btn--primary:hover {
  background: linear-gradient(135deg, var(--color-teal-hover) 0%, var(--color-teal) 100%);
  border-color: var(--color-teal-hover);
  color: var(--color-white);
  box-shadow: 0 4px 16px rgba(0, 151, 167, 0.4);
  transform: translateY(-1px);
}

.btn--ghost {
  background: transparent;
  color: var(--color-teal);
  border-color: var(--color-teal);
}
.btn--ghost:hover {
  background: var(--color-teal-glow);
  color: var(--color-teal);
  transform: translateY(-1px);
}

.btn--white {
  background: transparent;
  color: var(--color-white);
  border-color: rgba(255,255,255,0.4);
}
.btn--white:hover {
  background: rgba(255,255,255,0.1);
  border-color: rgba(255,255,255,0.7);
  color: var(--color-white);
  transform: translateY(-1px);
}

.btn--sm {
  padding: var(--space-2) var(--space-4);
  font-size: var(--text-xs);
}

.btn--lg {
  padding: var(--space-4) var(--space-8);
  font-size: var(--text-base);
}

/* Arrow for CTAs */
.btn .arrow {
  transition: transform var(--transition-fast);
}
.btn:hover .arrow {
  transform: translateX(4px);
}

/* SVG icon in button */
.btn svg {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
}

/* ========== HERO ========== */
.hero {
  min-height: 90vh;
  display: flex;
  align-items: center;
  background: var(--color-navy);
  color: var(--color-white);
  position: relative;
  overflow: hidden;
}

/* Animated gradient orbs */
.hero::before {
  content: '';
  position: absolute;
  top: -20%;
  right: -5%;
  width: 700px;
  height: 700px;
  background: radial-gradient(circle, rgba(0,151,167,0.15) 0%, transparent 65%);
  animation: heroFloat 8s ease-in-out infinite;
  pointer-events: none;
}
.hero::after {
  content: '';
  position: absolute;
  bottom: -30%;
  left: -10%;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(0,151,167,0.08) 0%, transparent 65%);
  animation: heroFloat 12s ease-in-out infinite reverse;
  pointer-events: none;
}

@keyframes heroFloat {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33% { transform: translate(30px, -20px) scale(1.05); }
  66% { transform: translate(-20px, 15px) scale(0.97); }
}

/* Grid pattern overlay */
.hero-bg {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
  background-size: 60px 60px;
  pointer-events: none;
}

/* Floating orbital decoration */
.hero-orbital {
  position: absolute;
  top: 50%;
  right: 8%;
  transform: translateY(-50%);
  width: 400px;
  height: 400px;
  opacity: 0.08;
  animation: slowSpin 60s linear infinite;
}
@keyframes slowSpin {
  from { transform: translateY(-50%) rotate(0deg); }
  to { transform: translateY(-50%) rotate(360deg); }
}
@media (max-width: 1024px) {
  .hero-orbital {
    width: 250px;
    height: 250px;
    right: -5%;
    opacity: 0.06;
  }
}
@media (max-width: 640px) {
  .hero-orbital { display: none; }
}

.hero .container {
  position: relative;
  z-index: 2;
}

.hero h1 {
  color: var(--color-white);
  margin-bottom: var(--space-4);
  font-size: var(--text-6xl);
}
@media (max-width: 768px) {
  .hero h1 { font-size: var(--text-4xl); }
}
.hero .subheadline {
  color: rgba(255,255,255,0.55);
  margin-bottom: var(--space-6);
  font-size: var(--text-2xl);
  letter-spacing: 0.02em;
}
.hero p {
  color: rgba(255,255,255,0.65);
  max-width: 600px;
  font-size: var(--text-lg);
  margin-bottom: var(--space-8);
  line-height: 1.8;
}
.hero-ctas {
  display: flex;
  gap: var(--space-4);
  flex-wrap: wrap;
}
.hero-label {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  text-transform: uppercase;
  letter-spacing: 0.15em;
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--color-teal);
  margin-bottom: var(--space-8);
  padding: var(--space-2) var(--space-4);
  background: rgba(0,151,167,0.1);
  border: 1px solid rgba(0,151,167,0.2);
  border-radius: 100px;
}
.hero-label::before {
  content: '';
  width: 8px;
  height: 8px;
  background: var(--color-teal);
  border-radius: 50%;
  animation: pulse 2s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(0.8); }
}

/* ========== SECTION ICON (SVG decoration for sections) ========== */
.section-icon {
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-lg);
  margin-bottom: var(--space-5);
  flex-shrink: 0;
}
.section-icon svg {
  width: 28px;
  height: 28px;
}
.section-icon--teal {
  background: var(--color-teal-glow);
  color: var(--color-teal);
}
.section-icon--navy {
  background: rgba(10, 22, 40, 0.08);
  color: var(--color-navy);
}
.section-icon--white {
  background: rgba(255,255,255,0.1);
  color: var(--color-white);
}

/* ========== CARDS ========== */
.card {
  background: var(--color-white);
  border: 1px solid var(--color-light-grey);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}
.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--color-teal), var(--color-navy));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition-base);
}
.card:hover {
  box-shadow: var(--shadow-lg);
  border-color: var(--color-border);
  transform: translateY(-4px);
}
.card:hover::before {
  transform: scaleX(1);
}
.card h3 {
  margin-bottom: var(--space-3);
}
.card p {
  font-size: var(--text-sm);
  line-height: 1.7;
}

/* Card with icon */
.card .section-icon {
  margin-bottom: var(--space-5);
}

.card--brand {
  text-align: center;
  padding: var(--space-10) var(--space-6);
}
.card--brand .brand-logo {
  height: 40px;
  width: auto;
  max-width: 140px;
  margin: 0 auto var(--space-5);
  object-fit: contain;
  transition: transform var(--transition-base);
}
.card--brand:hover .brand-logo {
  transform: scale(1.06);
}
.card--brand .brand-icon {
  width: 72px;
  height: 72px;
  margin: 0 auto var(--space-5);
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-off-white);
  border-radius: 50%;
  font-size: var(--text-2xl);
  font-weight: 800;
  color: var(--color-teal);
  border: 2px solid var(--color-light-grey);
  transition: all var(--transition-base);
}
.card--brand:hover .brand-icon {
  background: var(--color-teal-glow);
  border-color: var(--color-teal);
  transform: scale(1.08);
}
.card--brand .brand-name {
  font-size: var(--text-2xl);
  font-weight: 700;
  color: var(--color-graphite);
  margin-bottom: var(--space-2);
}
.card--brand .brand-tag {
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-teal);
  font-weight: 600;
  margin-bottom: var(--space-3);
}

/* ========== STAT STRIP ========== */
.stat-strip {
  display: flex;
  justify-content: center;
  gap: var(--space-16);
  flex-wrap: wrap;
}
.stat-item {
  text-align: center;
}
.stat-number {
  font-size: var(--text-4xl);
  font-weight: 700;
  color: var(--color-teal);
  line-height: 1;
  margin-bottom: var(--space-2);
}
.stat-label {
  font-size: var(--text-sm);
  color: var(--color-graphite-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

/* ========== DIVIDER ========== */
.divider {
  width: 48px;
  height: 3px;
  background: linear-gradient(90deg, var(--color-teal), var(--color-navy));
  border: none;
  margin: var(--space-6) 0;
}
.divider--center {
  margin-left: auto;
  margin-right: auto;
}

/* ========== NEWS CARD ========== */
.news-card {
  border-bottom: 1px solid var(--color-light-grey);
  padding-bottom: var(--space-6);
}
.news-card:last-child {
  border-bottom: none;
}
.news-date {
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-teal);
  font-weight: 600;
  margin-bottom: var(--space-2);
  display: flex;
  align-items: center;
  gap: var(--space-2);
}
.news-date::before {
  content: '';
  width: 6px;
  height: 6px;
  background: var(--color-teal);
  border-radius: 50%;
}
.news-title {
  font-size: var(--text-lg);
  font-weight: 600;
  color: var(--color-graphite);
  margin-bottom: var(--space-2);
}

/* ========== FOOTER ========== */
.site-footer {
  background: var(--color-navy);
  color: rgba(255,255,255,0.6);
  padding: var(--space-16) 0 var(--space-8);
  position: relative;
}
.site-footer::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--color-teal), var(--color-navy-mid), var(--color-teal));
}
.footer-top {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: var(--space-8);
  margin-bottom: var(--space-12);
}
@media (max-width: 768px) {
  .footer-top {
    grid-template-columns: 1fr;
    gap: var(--space-8);
  }
}
.footer-logo {
  margin-bottom: var(--space-4);
}
.footer-logo img {
  height: 32px;
  width: auto;
}
.footer-brand {
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--color-white);
  margin-bottom: var(--space-4);
}
.footer-desc {
  font-size: var(--text-sm);
  line-height: 1.6;
  max-width: 320px;
}
.footer-heading {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-white);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: var(--space-4);
}
.footer-links a {
  display: block;
  font-size: var(--text-sm);
  color: rgba(255,255,255,0.6);
  padding: var(--space-1) 0;
  transition: color var(--transition-fast), padding-left var(--transition-fast);
}
.footer-links a:hover {
  color: var(--color-teal);
  padding-left: var(--space-2);
}
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding-top: var(--space-6);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-4);
  font-size: var(--text-xs);
}
.footer-legal a {
  color: rgba(255,255,255,0.4);
  margin-left: var(--space-4);
}
.footer-legal a:hover {
  color: var(--color-teal);
}

/* ========== SECTION HEADER (reusable) ========== */
.section-header {
  margin-bottom: var(--space-12);
}
.section-header--center {
  text-align: center;
}
.section-header h2 {
  margin-bottom: var(--space-3);
}

/* ========== PILLAR BLOCK ========== */
.pillar {
  padding: var(--space-8) 0;
  border-top: 1px solid var(--color-light-grey);
}
.pillar:first-child {
  border-top: none;
}
.pillar-number {
  font-size: var(--text-xs);
  font-weight: 700;
  color: var(--color-teal);
  text-transform: uppercase;
  letter-spacing: 0.15em;
  margin-bottom: var(--space-3);
  display: inline-block;
}

/* ========== FAQ ========== */
.faq-item {
  border-bottom: 1px solid var(--color-light-grey);
  padding: var(--space-6) 0;
}
.faq-item:first-child {
  padding-top: 0;
}
.faq-item:last-child {
  border-bottom: none;
}
.faq-item h3 {
  font-size: var(--text-lg);
  margin-bottom: var(--space-3);
  color: var(--color-graphite);
}
.faq-item p {
  color: var(--color-graphite-light);
  line-height: 1.7;
}

/* ========== CTA SECTION ========== */
.cta-section {
  text-align: center;
  max-width: var(--container-narrow);
  margin: 0 auto;
}
.cta-section h2 {
  margin-bottom: var(--space-4);
}
.cta-section p {
  margin-bottom: var(--space-8);
}
/* Decorative line above CTA sections */
.cta-section .label {
  margin-bottom: var(--space-6);
}

/* ========== BREADCRUMBS ========== */
.breadcrumbs {
  padding: var(--space-4) 0;
  font-size: var(--text-xs);
  color: var(--color-graphite-muted);
}
.breadcrumbs a {
  color: var(--color-graphite-muted);
}
.breadcrumbs a:hover {
  color: var(--color-teal);
}
.breadcrumbs .sep {
  margin: 0 var(--space-2);
  color: var(--color-border);
}

/* ========== PAGE HERO (subpages) ========== */
.page-hero {
  padding: var(--space-20) 0 var(--space-12);
  background: var(--color-off-white);
  position: relative;
  overflow: hidden;
}
.page-hero::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--color-teal), transparent);
}
/* Subtle grid on subpage hero */
.page-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(0,0,0,0.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,0,0,0.02) 1px, transparent 1px);
  background-size: 80px 80px;
  pointer-events: none;
}
.page-hero .container { position: relative; z-index: 1; }
.page-hero h1 {
  margin-bottom: var(--space-4);
}
.page-hero .intro {
  font-size: var(--text-lg);
  max-width: 720px;
  color: var(--color-graphite-light);
  line-height: 1.8;
}
/* Icon in page hero */
.page-hero .section-icon {
  margin-bottom: var(--space-6);
}

/* ========== CONTACT GRID ========== */
.contact-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-6);
}
.contact-card {
  background: var(--color-off-white);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  border: 1px solid transparent;
  transition: all var(--transition-base);
}
.contact-card:hover {
  border-color: var(--color-teal);
  background: var(--color-white);
  box-shadow: var(--shadow-md);
}
.contact-card .section-icon {
  margin-bottom: var(--space-4);
}
.contact-card h3 {
  font-size: var(--text-base);
  margin-bottom: var(--space-2);
}
.contact-card a {
  color: var(--color-teal);
  font-weight: 500;
}

/* ========== SCROLL ANIMATIONS ========== */
.fade-up {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.fade-up.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Stagger children */
.stagger > * {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}
.stagger.visible > *:nth-child(1) { transition-delay: 0s; }
.stagger.visible > *:nth-child(2) { transition-delay: 0.1s; }
.stagger.visible > *:nth-child(3) { transition-delay: 0.2s; }
.stagger.visible > *:nth-child(4) { transition-delay: 0.3s; }
.stagger.visible > * {
  opacity: 1;
  transform: translateY(0);
}

/* ========== DECORATIVE: Gradient line before section headers ========== */
.section-header .label::before {
  content: '';
  display: inline-block;
  width: 24px;
  height: 2px;
  background: var(--color-teal);
  vertical-align: middle;
  margin-right: var(--space-3);
}

/* ========== TRUST STRIP ========== */
.trust-strip {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-10);
  padding: var(--space-6) 0;
  flex-wrap: wrap;
}
.trust-strip-item {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-sm);
  font-weight: 500;
  color: rgba(255,255,255,0.5);
}
.trust-strip-item svg {
  width: 18px;
  height: 18px;
  color: var(--color-teal);
}

/* ========== UNIVERSITY PARTNER CARD ========== */
.partner-card {
  display: flex;
  gap: var(--space-8);
  align-items: flex-start;
}
.partner-card .partner-badge {
  width: 80px;
  height: 80px;
  min-width: 80px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-teal-glow);
  border-radius: 50%;
  color: var(--color-teal);
}
.partner-card .partner-badge svg {
  width: 36px;
  height: 36px;
}
@media (max-width: 640px) {
  .partner-card { flex-direction: column; }
  .partner-card .partner-badge { width: 56px; height: 56px; min-width: 56px; }
  .partner-card .partner-badge svg { width: 24px; height: 24px; }
}

/* ========== INNOVATION AREA CARD ========== */
.innov-card {
  display: flex;
  gap: var(--space-6);
  align-items: flex-start;
  padding: var(--space-8);
  background: var(--color-white);
  border: 1px solid var(--color-light-grey);
  border-radius: var(--radius-lg);
  transition: all var(--transition-base);
}
.innov-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}
.innov-card .section-icon {
  margin-bottom: 0;
}
@media (max-width: 640px) {
  .innov-card { flex-direction: column; }
}

/* ========== INVESTOR HIGHLIGHT ========== */
.highlight-box {
  background: linear-gradient(135deg, var(--color-teal-glow), rgba(10,22,40,0.04));
  border: 1px solid rgba(0,151,167,0.15);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
  margin: var(--space-8) 0;
}
.highlight-box h3 {
  color: var(--color-teal-dark);
}