/* =========================================
   assets/css/main.css
   Component Styles: Header · Hero
   ========================================= */

/* ─────────────────────────────────────────
   SITE HEADER / NAVBAR
   ───────────────────────────────────────── */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(248, 249, 250, 0.88);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.site-header.scrolled {
  border-color: var(--color-border);
  box-shadow: var(--shadow-sm);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  height: 72px;
}

/* Logo */
.site-logo {
  display: flex;
  align-items: center;
  flex-shrink: 0;
}
.logo-text {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-primary);
  letter-spacing: -0.02em;
}

/* Nav Menu */
.nav-menu {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-left: auto;
  margin-right: 16px;
}
.nav-menu li a {
  font-family: var(--font-heading);
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-text);
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  transition: color var(--transition), background var(--transition);
}
.nav-menu li a:hover,
.nav-menu li.current-menu-item > a {
  color: var(--color-primary);
  background: rgba(15, 81, 50, 0.07);
}

.nav-cta { font-size: 0.88rem; padding: 10px 22px; flex-shrink: 0; }

/* Hamburger */
.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 6px;
  border-radius: var(--radius-sm);
}
.hamburger {
  display: flex;
  flex-direction: column;
  gap: 5px;
  width: 24px;
}
.hamburger span {
  display: block;
  height: 2px;
  background: var(--color-text);
  border-radius: 2px;
  transition: transform var(--transition), opacity var(--transition);
}
.nav-toggle[aria-expanded="true"] .hamburger span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.nav-toggle[aria-expanded="true"] .hamburger span:nth-child(2) {
  opacity: 0;
}
.nav-toggle[aria-expanded="true"] .hamburger span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ─────────────────────────────────────────
   HERO SECTION
   ───────────────────────────────────────── */
.hero-section {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-block: 120px 80px; /* top offset for fixed header */
  overflow: hidden;
  background: var(--color-bg);
}

/* Decorative blobs */
.hero-blob {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.35;
  pointer-events: none;
  z-index: 0;
}
.hero-blob--1 {
  width: 520px;
  height: 520px;
  background: radial-gradient(circle, #A8D5BA, transparent 70%);
  top: -120px;
  right: -100px;
}
.hero-blob--2 {
  width: 380px;
  height: 380px;
  background: radial-gradient(circle, #D4AF37, transparent 70%);
  bottom: -80px;
  left: -80px;
  opacity: 0.18;
}

.hero-inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: 64px;
}

/* ── Hero Content (Left) ── */
.hero-content { max-width: 560px; }

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-heading);
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--color-secondary);
  background: rgba(25, 135, 84, 0.10);
  border: 1px solid rgba(25, 135, 84, 0.20);
  padding: 6px 14px;
  border-radius: var(--radius-pill);
  margin-bottom: 28px;
  letter-spacing: 0.02em;
}
.badge-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-secondary);
  animation: pulse-dot 2s ease-in-out infinite;
  flex-shrink: 0;
}
@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50%       { opacity: 0.5; transform: scale(0.8); }
}

.hero-title {
  font-size: clamp(2.2rem, 4.5vw, 3.4rem);
  font-weight: 700;
  line-height: 1.18;
  color: var(--color-text);
  margin-bottom: 22px;
}
.hero-title--highlight {
  display: block;
  background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-tagline {
  font-size: 1.05rem;
  color: var(--color-text-muted);
  line-height: 1.8;
  margin-bottom: 36px;
  max-width: 480px;
}

/* CTA Group */
.hero-cta-group {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-bottom: 44px;
}

/* Trust Row */
.hero-trust {
  display: flex;
  align-items: center;
  gap: 24px;
}
.trust-item {
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.trust-item strong {
  font-family: var(--font-heading);
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--color-primary);
  line-height: 1;
}
.trust-item span {
  font-size: 0.78rem;
  color: var(--color-text-muted);
  font-weight: 500;
  letter-spacing: 0.03em;
}
.trust-divider {
  width: 1px;
  height: 36px;
  background: var(--color-border);
}

/* ── Hero Photo (Right) ── */
.hero-photo-wrap { display: flex; justify-content: center; }

.hero-photo-card {
  position: relative;
  width: 360px;
  max-width: 100%;
}

.hero-photo-placeholder {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  aspect-ratio: 5 / 6;
  background: #E8F5E9;
}
.hero-photo-svg,
.hero-photo {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

/* Floating Badges */
.hero-float-badge {
  position: absolute;
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-heading);
  font-size: 0.8rem;
  font-weight: 600;
  padding: 10px 16px;
  border-radius: var(--radius-md);
  background: var(--color-white);
  box-shadow: var(--shadow-md);
  white-space: nowrap;
}

.hero-float-badge--zoom {
  bottom: 48px;
  left: -32px;
  color: var(--color-secondary);
}
.hero-float-badge--zoom svg { color: var(--color-secondary); flex-shrink: 0; }

.hero-float-badge--students {
  top: 32px;
  right: -28px;
  color: var(--color-text);
}
.hero-float-badge--students svg { color: var(--color-accent); flex-shrink: 0; }
.hero-float-badge--students strong { color: var(--color-primary); }

/* Subtle ring behind the photo */
.hero-photo-card::before {
  content: '';
  position: absolute;
  inset: -16px;
  border-radius: calc(var(--radius-lg) + 16px);
  border: 2px dashed rgba(25, 135, 84, 0.20);
  pointer-events: none;
  animation: rotate-ring 20s linear infinite;
}
@keyframes rotate-ring {
  to { transform: rotate(360deg); }
}

/* ─────────────────────────────────────────
   SITE FOOTER
   ───────────────────────────────────────── */
.site-footer {
  background: var(--color-primary);
  color: rgba(255,255,255,0.85);
  padding-top: 72px;
}

.footer-top {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 56px;
  border-bottom: 1px solid rgba(255,255,255,0.12);
}

.footer-logo .logo-text { color: var(--color-white); }

.footer-tagline {
  color: rgba(255,255,255,0.65);
  font-size: 0.9rem;
  margin-top: 12px;
  margin-bottom: 24px;
  max-width: 280px;
}

.social-links { display: flex; gap: 10px; }
.social-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: var(--radius-sm);
  background: rgba(255,255,255,0.10);
  color: rgba(255,255,255,0.75);
  transition: background var(--transition), color var(--transition);
}
.social-link:hover {
  background: var(--color-accent);
  color: var(--color-primary);
}

.footer-heading {
  font-family: var(--font-heading);
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-white);
  margin-bottom: 20px;
}

.footer-nav-list li { margin-bottom: 10px; }
.footer-nav-list a {
  color: rgba(255,255,255,0.65);
  font-size: 0.9rem;
  transition: color var(--transition), padding-left var(--transition);
}
.footer-nav-list a:hover { color: var(--color-accent); padding-left: 4px; }

.footer-contact-list li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.9rem;
  color: rgba(255,255,255,0.65);
  margin-bottom: 12px;
}
.footer-contact-list svg { flex-shrink: 0; color: var(--color-accent); }
.footer-contact-list a { color: rgba(255,255,255,0.65); }
.footer-contact-list a:hover { color: var(--color-accent); }

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-block: 20px;
  font-size: 0.83rem;
  color: rgba(255,255,255,0.45);
}
.footer-bottom a { color: rgba(255,255,255,0.65); }
.footer-bottom a:hover { color: var(--color-accent); }

/* ─────────────────────────────────────────
   RESPONSIVE — TABLET (≤ 900px)
   ───────────────────────────────────────── */
@media (max-width: 900px) {
  .hero-inner {
    grid-template-columns: 1fr;
    text-align: center;
    gap: 52px;
  }
  .hero-content { max-width: 100%; }
  .hero-tagline { margin-inline: auto; }
  .hero-cta-group { justify-content: center; }
  .hero-trust { justify-content: center; }
  .hero-photo-wrap { order: -1; }
  .hero-photo-card { width: 280px; }

  .footer-top {
    grid-template-columns: 1fr 1fr;
  }
  .footer-brand { grid-column: 1 / -1; }
}

/* ─────────────────────────────────────────
   RESPONSIVE — MOBILE (≤ 600px)
   ───────────────────────────────────────── */
@media (max-width: 600px) {
  :root { --section-py: 64px; }

  /* Nav: hide menu & CTA, show hamburger */
  .nav-menu,
  .nav-cta { display: none; }
  .nav-toggle { display: flex; }

  /* Mobile menu open state */
  .nav-menu.is-open {
    display: flex;
    flex-direction: column;
    position: fixed;
    inset: 72px 0 0 0;
    background: var(--color-white);
    padding: 32px 24px;
    gap: 4px;
    overflow-y: auto;
    box-shadow: var(--shadow-lg);
    z-index: 999;
  }
  .nav-menu.is-open li a {
    display: block;
    font-size: 1.1rem;
    padding: 14px 16px;
  }

  .hero-section { padding-block: 100px 60px; }
  .hero-photo-card { width: 220px; }
  .hero-float-badge--zoom  { left: -8px; font-size: 0.72rem; }
  .hero-float-badge--students { right: -8px; font-size: 0.72rem; }

  .footer-top { grid-template-columns: 1fr; gap: 32px; }
  .footer-bottom { flex-direction: column; gap: 6px; text-align: center; }
}