*, *::before, *::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  text-size-adjust: 100%;
  overflow-x: hidden;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

body {
  margin: 0;
  padding: 0;
  background-color: var(--color-surface-body);
  color: var(--color-text-secondary);
  overflow-x: hidden;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

main {
  flex: 1;
}

/* Accessible Skip Link */
.skip-link {
  position: absolute;
  top: -60px;
  inset-inline-start: 16px;
  background: var(--color-trust-blue);
  color: var(--color-white);
  padding: 10px 18px;
  border-radius: var(--radius-sm);
  z-index: 9999;
  text-decoration: none;
  font-weight: 600;
  transition: top var(--transition-fast);
}

.skip-link:focus {
  top: 16px;
  outline: 3px solid var(--color-medium-green);
}

/* Container */
.container {
  width: 100%;
  max-width: var(--container-max-width);
  margin-inline: auto;
  padding-inline: var(--container-padding);
}

/* ==========================================================================
   Header & Navigation
   ========================================================================== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(226, 232, 240, 0.85);
  transition: all var(--transition-normal);
}

.site-header.is-scrolled {
  box-shadow: 0 4px 20px rgba(1, 9, 45, 0.06);
  background: rgba(255, 255, 255, 0.98);
}

.navbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 80px;
  gap: var(--space-lg);
}

/* Logo with clear space */
.brand-link {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  padding-block: 8px;
}

.brand-logo {
  height: 42px;
  width: auto;
  max-width: 180px;
  display: block;
  object-fit: contain;
}

/* Adaptive Brand Logo - Light / Dark Swap */
.brand-logo-light {
  display: block !important;
}
.brand-logo-dark {
  display: none !important;
}

[data-theme="dark"] .brand-logo-light {
  display: none !important;
}
[data-theme="dark"] .brand-logo-dark {
  display: block !important;
}

/* Navigation Menu */
.nav-menu {
  display: flex;
  align-items: center;
  gap: var(--space-xl);
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-item {
  position: relative;
}

.nav-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--color-text-primary);
  text-decoration: none;
  padding: 8px 10px;
  border-radius: var(--radius-sm);
  transition: color var(--transition-fast), background-color var(--transition-fast);
}

.nav-link:hover,
.nav-link:focus-visible,
.nav-link.active {
  color: var(--color-trust-blue);
  background-color: var(--color-surface-subtle);
}

.nav-link:focus-visible {
  outline: 2px solid var(--color-trust-blue);
  outline-offset: 2px;
}

/* Dropdown */
.nav-dropdown {
  position: relative;
}

.nav-dropdown-toggle svg {
  transition: transform var(--transition-fast);
}

.nav-dropdown:hover .nav-dropdown-toggle svg,
.nav-dropdown:focus-within .nav-dropdown-toggle svg {
  transform: rotate(180deg);
}

.nav-dropdown-menu {
  position: absolute;
  top: calc(100% + 8px);
  inset-inline-start: 0;
  min-width: 250px;
  background: var(--color-white);
  border: 1px solid var(--color-border-subtle);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  padding: var(--space-xs);
  list-style: none;
  margin: 0;
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  transition: all var(--transition-normal);
  z-index: 100;
}

.nav-dropdown:hover .nav-dropdown-menu,
.nav-dropdown:focus-within .nav-dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.nav-dropdown-link {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-text-secondary);
  text-decoration: none;
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
}

.nav-dropdown-link:hover,
.nav-dropdown-link:focus-visible {
  background: var(--color-surface-accent-soft);
  color: var(--color-trust-blue);
}

/* Navbar Actions */
.navbar-actions {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

/* Theme Toggle Button */
.theme-toggle-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-full);
  background: rgba(255, 255, 255, 0.9);
  border: 1px solid #E2E8F0;
  color: var(--color-very-dark-navy);
  cursor: pointer;
  transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
  box-shadow: 0 2px 6px rgba(1, 9, 45, 0.05);
  position: relative;
  overflow: hidden;
  flex-shrink: 0;
  padding: 0;
}

.theme-toggle-btn:hover {
  background: #FFFFFF;
  border-color: #CBD5E1;
  color: var(--color-trust-blue);
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(4, 99, 212, 0.16);
}

.theme-toggle-btn svg {
  transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1), opacity 0.25s ease;
  flex-shrink: 0;
}

.theme-toggle-btn:hover svg {
  transform: rotate(20deg);
}

/* Light mode icon visibility */
html:not([data-theme="dark"]) .theme-icon-sun {
  display: none !important;
}
html:not([data-theme="dark"]) .theme-icon-moon {
  display: block !important;
}

/* Dark mode icon visibility */
[data-theme="dark"] .theme-icon-sun {
  display: block !important;
  color: #FBBF24;
}
[data-theme="dark"] .theme-icon-moon {
  display: none !important;
}

[data-theme="dark"] .theme-toggle-btn {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.15);
  color: #F8FAFC;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.4);
}

[data-theme="dark"] .theme-toggle-btn:hover {
  background: rgba(255, 255, 255, 0.16);
  border-color: rgba(4, 99, 212, 0.45);
  box-shadow: 0 6px 18px rgba(4, 99, 212, 0.3);
}

/* Language Switcher */
.lang-switcher {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 14px;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-text-primary);
  text-decoration: none;
  border: 1px solid var(--color-border-subtle);
  border-radius: var(--radius-full);
  background: var(--color-white);
  transition: all var(--transition-fast);
}

.lang-switcher:hover,
.lang-switcher:focus-visible {
  border-color: var(--color-trust-blue);
  color: var(--color-trust-blue);
  background: var(--color-surface-subtle);
}

/* Mobile Hamburger Trigger */
.btn-hamburger {
  display: none;
  background: transparent;
  border: none;
  padding: 8px;
  cursor: pointer;
  color: var(--color-text-primary);
  border-radius: var(--radius-sm);
}

.btn-hamburger:focus-visible {
  outline: 2px solid var(--color-trust-blue);
}

/* Mobile Drawer Overlay */
.drawer-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(1, 9, 45, 0.55);
  backdrop-filter: blur(4px);
  z-index: 2000;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity var(--transition-normal), visibility var(--transition-normal);
}

.drawer-backdrop.is-active {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}

.mobile-drawer {
  position: fixed;
  top: 0;
  bottom: 0;
  right: 0;
  left: auto;
  width: min(340px, 86vw);
  background: var(--color-white);
  z-index: 2001;
  box-shadow: -8px 0 32px rgba(1, 9, 45, 0.2);
  display: flex;
  flex-direction: column;
  transform: translateX(105%);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.3s ease, visibility 0.3s ease;
}

[dir="rtl"] .mobile-drawer {
  right: 0;
  left: auto;
  transform: translateX(105%);
}

[dir="ltr"] .mobile-drawer {
  right: 0;
  left: auto;
  transform: translateX(105%);
}

.mobile-drawer.is-active {
  transform: translateX(0) !important;
  opacity: 1 !important;
  visibility: visible !important;
  pointer-events: auto !important;
}

@media (min-width: 1025px) {
  .mobile-drawer,
  .drawer-backdrop {
    display: none !important;
  }
}

.drawer-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-lg);
  border-bottom: 1px solid var(--color-border-subtle);
}

.drawer-close {
  background: transparent;
  border: none;
  font-size: 1.5rem;
  padding: 6px;
  cursor: pointer;
  color: var(--color-text-secondary);
  border-radius: var(--radius-sm);
}

.drawer-close:focus-visible {
  outline: 2px solid var(--color-trust-blue);
}

.drawer-body {
  flex: 1;
  overflow-y: auto;
  padding: var(--space-lg);
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
}

.mobile-menu {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}

.mobile-nav-link {
  display: block;
  padding: 12px 14px;
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-text-primary);
  text-decoration: none;
  border-radius: var(--radius-sm);
  transition: background-color var(--transition-fast);
}

.mobile-nav-link:hover,
.mobile-nav-link:focus-visible,
.mobile-nav-link.active {
  background: var(--color-surface-subtle);
  color: var(--color-trust-blue);
}

.drawer-footer {
  padding: var(--space-lg);
  border-top: 1px solid var(--color-border-subtle);
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

/* ==========================================================================
   Footer
   ========================================================================== */
.site-footer {
  background-color: var(--color-very-dark-navy);
  color: var(--color-text-inverse-muted);
  position: relative;
  overflow: hidden;
  padding-block: var(--space-4xl) var(--space-xl);
}

.footer-watermark {
  position: absolute;
  inset-inline-end: -60px;
  bottom: -60px;
  width: 380px;
  height: 380px;
  opacity: 0.04;
  pointer-events: none;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2.2fr 1.2fr 1.4fr 1.2fr;
  gap: var(--space-3xl);
  margin-bottom: var(--space-3xl);
  position: relative;
  z-index: 1;
}

.footer-brand p {
  color: var(--color-text-inverse-muted);
  margin-block: var(--space-md) var(--space-lg);
  font-size: 0.95rem;
  line-height: 1.7;
  max-width: 320px;
}

.footer-heading {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--color-white);
  margin-bottom: var(--space-lg);
  position: relative;
}

.footer-links {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-links a {
  color: var(--color-text-inverse-muted);
  text-decoration: none;
  font-size: 0.925rem;
  transition: color var(--transition-fast);
}

.footer-links a:hover,
.footer-links a:focus-visible {
  color: var(--color-white);
}

.footer-bottom {
  padding-top: var(--space-xl);
  border-top: 1px solid var(--color-border-inverse);
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.85rem;
  color: var(--color-text-muted);
  position: relative;
  z-index: 1;
}

.footer-legal-links {
  display: flex;
  gap: var(--space-lg);
}

.footer-legal-links a {
  color: var(--color-text-muted);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.footer-legal-links a:hover {
  color: var(--color-white);
}