/* Reset & Base */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body { font-family: var(--font-body); font-size: 16px; line-height: 1.6; color: var(--color-text-primary); background: var(--color-primary); }
a { color: var(--color-accent); text-decoration: none; }
a:hover, a:focus-visible { color: var(--color-cta); text-decoration: underline; }
img { max-width: 100%; height: auto; display: block; }
ul, ol { list-style: none; }
:focus-visible { outline: 2px solid var(--color-accent); outline-offset: 2px; }

/* Variables */
:root {
  --color-primary: #0B1D3A;
  --color-secondary: #0F2B3E;
  --color-accent: #D4AF37;
  --color-cta: #FF6B35;
  --color-background-light: #F8F9FA;
  --color-text-primary: #1E1E1E;
  --color-border: #2C3E50;
  --color-success: #27AE60;
  --font-heading: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Arial, sans-serif;
  --font-body: 'Noto Serif SC', Georgia, 'Times New Roman', serif;
  --max-width: 1200px;
  --header-height: 100px;
}

/* Skip Link */
.skip-link {
  position: absolute;
  top: -100%;
  left: 0;
  z-index: 10000;
  padding: 0.5rem 1rem;
  background: var(--color-accent);
  color: #000;
  font-weight: 700;
}
.skip-link:focus { top: 0; }

/* Header */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  background: var(--color-primary);
  z-index: 1000;
  border-bottom: 1px solid var(--color-border);
  box-shadow: 0 2px 8px rgba(0,0,0,0.15);
}
.header-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.5rem;
  display: flex;
  flex-direction: column;
  align-items: center;
}
.header-brand {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 0;
  position: relative;
}
.site-logo {
  font-family: var(--font-heading);
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--color-accent);
  letter-spacing: 0.05em;
}
.site-tagline {
  font-family: var(--font-body);
  font-size: 0.85rem;
  color: var(--color-background-light);
  margin-left: 1rem;
  opacity: 0.8;
}
.nav-toggle {
  display: none;
  position: absolute;
  right: 0;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
  color: var(--color-accent);
}
.nav-toggle-icon {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-accent);
  position: relative;
  transition: background 0.2s;
}
.nav-toggle-icon::before, .nav-toggle-icon::after {
  content: '';
  position: absolute;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--color-accent);
  transition: transform 0.2s;
}
.nav-toggle-icon::before { top: -6px; }
.nav-toggle-icon::after  { top: 6px; }
[data-nav-toggle][aria-expanded="true"] .nav-toggle-icon { background: transparent; }
[data-nav-toggle][aria-expanded="true"] .nav-toggle-icon::before { transform: rotate(45deg); top: 0; }
[data-nav-toggle][aria-expanded="true"] .nav-toggle-icon::after { transform: rotate(-45deg); top: 0; }

.main-nav {
  width: 100%;
  display: flex;
  justify-content: center;
  padding: 0 0 0.75rem 0;
}
.nav-list {
  display: flex;
  gap: 1.5rem;
  flex-wrap: wrap;
  justify-content: center;
}
.main-nav a {
  font-family: var(--font-heading);
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--color-background-light);
  padding: 0.25rem 0;
  border-bottom: 2px solid transparent;
  transition: border-color 0.2s, color 0.2s;
}
.main-nav a:hover,
.main-nav a:focus-visible,
.main-nav a[aria-current="page"] {
  color: var(--color-accent);
  border-bottom-color: var(--color-accent);
}

/* Mobile Nav */
@media (max-width: 767px) {
  .header-inner { align-items: stretch; }
  .header-brand { justify-content: flex-start; }
  .site-tagline { display: none; }
  .nav-toggle { display: block; }
  .main-nav {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
    flex-direction: column;
    padding: 0;
  }
  .main-nav[data-open="true"] {
    max-height: 500px;
    padding: 0 0 0.75rem 0;
  }
  .nav-list {
    flex-direction: column;
    gap: 0.5rem;
    padding-left: 0;
    width: 100%;
  }
  .main-nav a {
    display: block;
    padding: 0.5rem 1rem;
    border: none;
    border-left: 3px solid transparent;
  }
  .main-nav a:hover,
  .main-nav a[aria-current="page"] {
    border-left-color: var(--color-accent);
    color: var(--color-accent);
  }
}

/* Footer */
.site-footer {
  background: var(--color-primary);
  border-top: 1px solid var(--color-border);
  color: var(--color-background-light);
  padding: 2rem 1.5rem 1.5rem;
}
.footer-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 1.5rem;
}
.footer-brand .footer-logo {
  font-family: var(--font-heading);
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--color-accent);
}
.footer-copyright {
  font-size: 0.85rem;
  margin-top: 0.5rem;
  opacity: 0.8;
}
.footer-links {
  display: flex;
  gap: 1.5rem;
  align-items: center;
  flex-wrap: wrap;
}
.footer-links a {
  color: var(--color-background-light);
  font-size: 0.9rem;
  border-bottom: 1px solid transparent;
  transition: border-color 0.2s, color 0.2s;
}
.footer-links a:hover,
.footer-links a:focus-visible {
  color: var(--color-accent);
  border-bottom-color: var(--color-accent);
}
.footer-contact {
  font-size: 0.85rem;
  opacity: 0.9;
}
.footer-contact a {
  color: var(--color-accent);
  font-weight: 600;
}

/* Scroll Progress */
#scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 3px;
  width: 0%;
  background: var(--color-accent);
  z-index: 9999;
  transition: width 0.1s linear;
}
@media (prefers-reduced-motion: reduce) {
  #scroll-progress { transition: none; }
}

/* Common Components */
.content-container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 2rem 1.5rem;
  background: var(--color-background-light);
  min-height: 60vh;
}
.breadcrumb {
  display: flex;
  gap: 0.5rem;
  font-size: 0.9rem;
  color: var(--color-border);
  padding: 0.75rem 0;
}
.breadcrumb a { color: var(--color-primary); }
.breadcrumb a:hover { color: var(--color-cta); }
.breadcrumb span.separator { margin: 0 0.3rem; }

.btn {
  display: inline-block;
  padding: 0.6rem 1.5rem;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 1rem;
  border: 2px solid transparent;
  border-radius: 4px;
  cursor: pointer;
  text-align: center;
  transition: background 0.2s, border-color 0.2s, transform 0.1s;
}
.btn:active { transform: scale(0.97); }
.btn-cta {
  background: var(--color-cta);
  color: #fff;
  border-color: var(--color-cta);
}
.btn-cta:hover,
.btn-cta:focus-visible {
  background: #e55a2b;
  border-color: #e55a2b;
}
.btn-primary {
  background: var(--color-primary);
  color: var(--color-accent);
  border-color: var(--color-primary);
}
.btn-primary:hover {
  background: var(--color-secondary);
  border-color: var(--color-accent);
}

.grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
}
@media (max-width: 767px) {
  .grid-2 { grid-template-columns: 1fr; }
}

/* Responsive padding for main content */
#main-content {
  padding-top: var(--header-height);
  background: var(--color-background-light);
}
@media (max-width: 767px) {
  #main-content { padding-top: 70px; }
}