:root {
  --bg: #FFFFFF;
  --bg-soft: #F5F7FA;
  --surface: #FFFFFF;
  --border: rgba(10, 38, 71, 0.08);
  --text: #101828;
  --muted: #667085;
  --primary: #0A2647;
  --primary-2: #123968;
  --accent: #123968;
  --success: #0A2647;
  --shadow: 0 8px 24px rgba(10, 38, 71, 0.06);
  --radius-lg: 20px;
  --radius-md: 14px;
  --radius-sm: 10px;
  --container: 1180px;
  --header-height: 72px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

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

button {
  font: inherit;
}

ul {
  list-style: none;
}

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

/* HEADER */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  min-height: var(--header-height);
  background: rgba(255, 255, 255, 0.7);
  backdrop-filter: saturate(180%) blur(16px);
  -webkit-backdrop-filter: saturate(180%) blur(16px);
  border-bottom: 1px solid rgba(10, 38, 71, 0.06);
  transition: all 0.3s ease;
}

.site-header.scrolled {
  background: rgba(255, 255, 255, 0.9);
  box-shadow: 0 2px 8px rgba(10, 38, 71, 0.06);
}

.header-container {
  min-height: var(--header-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}

.brand-logo {
  height: 38px;
  width: auto;
  border-radius: 8px;
}

.brand-text {
  font-weight: 700;
  color: var(--primary);
  font-size: 15px;
  letter-spacing: -0.01em;
}

.primary-nav {
  display: flex;
  align-items: center;
  gap: 22px;
}

.primary-nav > a:not(.btn) {
  color: var(--primary);
  font-weight: 600;
  font-size: 14px;
  transition: color 0.2s ease;
}

.primary-nav > a:not(.btn):hover {
  color: var(--primary-2);
}

.nav-toggle {
  display: none;
  width: 40px;
  height: 40px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: rgba(10, 38, 71, 0.03);
  cursor: pointer;
}

.nav-toggle span {
  display: block;
  width: 18px;
  height: 2px;
  background: var(--primary);
  margin: 3px auto;
  border-radius: 999px;
}

/* BUTTONS */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 18px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 13.5px;
  border: 1px solid transparent;
  transition: all 0.2s ease;
  white-space: nowrap;
}

.btn:hover {
  transform: translateY(-1px);
}

.btn-primary {
  color: #fff;
  background: var(--primary);
  box-shadow: 0 4px 14px rgba(10, 38, 71, 0.25);
}

.btn-primary:hover {
  background: var(--primary-2);
  box-shadow: 0 6px 20px rgba(10, 38, 71, 0.3);
}

.btn-outline {
  color: var(--primary);
  background: rgba(10, 38, 71, 0.04);
  border-color: var(--border);
}

/* HERO BANNER */
.sitemap-hero {
  position: relative;
  overflow: hidden;
  padding: 120px 0 64px;
  background: linear-gradient(180deg, #0A2647 0%, #0d325d 100%);
  color: #FFFFFF;
}

.sitemap-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 80% -10%, rgba(199, 227, 245, 0.25), transparent 60%),
    radial-gradient(circle at 10% 20%, rgba(199, 227, 245, 0.15), transparent 60%);
  z-index: 0;
}

.sitemap-hero-content {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 780px;
  margin: 0 auto;
}

.sitemap-hero-content .eyebrow {
  display: inline-flex;
  align-items: center;
  padding: 6px 12px;
  border-radius: 999px;
  background: rgba(199, 227, 245, 0.15);
  color: #C7E3F5;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.sitemap-hero-content h1 {
  margin: 16px 0 12px;
  font-size: clamp(2rem, 4vw, 3rem);
  line-height: 1.15;
  letter-spacing: -0.02em;
  font-weight: 800;
}

.sitemap-hero-content .hero-subtitle {
  margin: 0;
  color: #C7E3F5;
  font-size: 15px;
  line-height: 1.6;
}

/* LANGUAGE SWITCHER */
.sitemap-lang-switcher {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  margin-top: 24px;
  flex-wrap: wrap;
}

.sitemap-lang-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.2);
  font-weight: 600;
  font-size: 13px;
  color: #FFFFFF;
  transition: all 0.2s ease;
}

.sitemap-lang-btn:hover {
  transform: translateY(-1px);
  background: rgba(255, 255, 255, 0.15);
  border-color: rgba(255, 255, 255, 0.3);
}

.sitemap-lang-btn.active {
  background: #C7E3F5;
  border-color: #C7E3F5;
  color: var(--primary);
}

/* SITEMAP CONTENT */
.sitemap-section {
  padding: 64px 0 80px;
}

.sitemap-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

/* SITEMAP CARD */
.sitemap-card {
  padding: 24px;
  border-radius: var(--radius-lg);
  background: var(--bg-soft);
  border: 1px solid var(--border);
  transition: all 0.25s ease;
}

.sitemap-card:hover {
  border-color: var(--primary);
  transform: translateY(-3px);
  box-shadow: var(--shadow);
}

.sitemap-card-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
}

.sitemap-card-icon {
  width: 44px;
  height: 44px;
  border-radius: 10px;
  display: grid;
  place-items: center;
  background: rgba(10, 38, 71, 0.08);
  color: var(--primary);
  font-size: 18px;
  flex-shrink: 0;
}

.sitemap-card-header h2 {
  margin: 0;
  font-size: 18px;
  color: var(--primary);
  font-weight: 700;
}

.sitemap-card p {
  margin: 0 0 16px;
  color: var(--muted);
  font-size: 13.5px;
  line-height: 1.6;
}

/* SITEMAP LINKS */
.sitemap-links {
  display: grid;
  gap: 8px;
}

.sitemap-link {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--text);
  font-size: 13.5px;
  font-weight: 600;
  transition: all 0.2s ease;
}

.sitemap-link:hover {
  background: var(--primary);
  color: #FFFFFF;
  border-color: var(--primary);
  transform: translateX(4px);
}

.sitemap-link i {
  color: var(--primary);
  font-size: 11px;
  width: 16px;
  text-align: center;
  flex-shrink: 0;
}

.sitemap-link:hover i {
  color: #FFFFFF;
}

.sitemap-link .link-url {
  color: var(--muted);
  font-size: 11px;
  font-weight: 400;
  margin-left: auto;
  opacity: 0;
  transition: opacity 0.2s ease;
}

.sitemap-link:hover .link-url {
  color: rgba(255, 255, 255, 0.7);
  opacity: 1;
}

/* FEATURED CARD */
.sitemap-card.featured {
  background: #FFFFFF;
  border: 2px solid var(--primary);
  box-shadow: 0 10px 30px rgba(10, 38, 71, 0.08);
}

/* FOOTER */
.site-footer {
  background: #071a30;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  padding: 56px 0 32px;
  color: rgba(255, 255, 255, 0.8);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr 1fr 1fr;
  gap: 28px;
  text-align: left;
}

.footer-logo {
  height: 60px;
  width: auto;
  margin-bottom: 16px;
  padding: 4px;
  background: #FFFFFF;
  border-radius: 8px;
}

.footer-brand p {
  font-size: 13.5px;
  line-height: 1.6;
  color: rgba(255, 255, 255, 0.65);
}

.footer-column h3 {
  margin: 0 0 16px;
  font-size: 15px;
  color: #FFFFFF;
  font-weight: 700;
}

.footer-column ul {
  display: grid;
  gap: 12px;
}

.footer-column li a {
  font-size: 13.5px;
  color: rgba(255, 255, 255, 0.65);
  transition: color 0.2s ease;
}

.footer-column li a:hover {
  color: #C7E3F5;
}

.social-links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.social-links a {
  width: 40px;
  height: 40px;
  display: grid;
  place-items: center;
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.1);
  font-size: 16px;
  color: rgba(255, 255, 255, 0.8);
  transition: all 0.2s ease;
}

.social-links a:hover {
  transform: translateY(-2px);
  border-color: #C7E3F5;
  color: #C7E3F5;
}

.footer-bottom {
  padding: 20px 0 0;
  margin-top: 32px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  text-align: center;
}

.footer-bottom p {
  margin: 0;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.55);
}

/* RESPONSIVE */
@media (max-width: 1100px) {
  .sitemap-grid {
    grid-template-columns: 1fr 1fr;
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 820px) {
  .nav-toggle {
    display: inline-block;
  }

  .primary-nav {
    position: absolute;
    top: calc(100% + 10px);
    right: 16px;
    left: 16px;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 14px;
    padding: 18px;
    border-radius: 20px;
    background: rgba(255, 255, 255, 0.98);
    border: 1px solid var(--border);
    box-shadow: 0 8px 32px rgba(10, 38, 71, 0.15);
  }

  .primary-nav.is-open {
    display: flex;
  }

  .primary-nav > a {
    width: 100%;
    text-align: left;
  }

  .sitemap-grid,
  .footer-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .header-container {
    min-height: 72px;
  }

  .sitemap-hero-content h1 {
    font-size: 24px;
  }

  .sitemap-card {
    padding: 20px;
    border-radius: var(--radius-lg);
  }

  .sitemap-section {
    padding: 48px 0 64px;
  }

  .sitemap-lang-switcher {
    flex-direction: column;
    gap: 10px;
  }

  .sitemap-link .link-url {
    display: none;
  }
}