/* ============================================
   SITE NAVIGATION
   Consistent header for homepage and framework page
   ============================================ */

.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: var(--bg-primary);
  border-bottom: 1px solid var(--border-light);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

[data-theme="dark"] .site-header {
  background: rgba(17, 17, 17, 0.95);
  border-bottom-color: rgba(255, 159, 71, 0.1);
}

.site-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-3) 0;
  max-width: 1400px;
  margin: 0 auto;
  padding-left: var(--space-4);
  padding-right: var(--space-4);
}

/* Logo */
.site-logo {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--color-orange);
  text-decoration: none;
  letter-spacing: 0.5px;
  transition: all 0.2s ease;
}

.site-logo:hover {
  color: var(--color-gold);
  transform: translateX(-2px);
}

[data-theme="dark"] .site-logo {
  color: var(--color-orange-bright);
}

[data-theme="dark"] .site-logo:hover {
  color: var(--color-gold-bright);
}

/* Nav Right Section */
.nav-right {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

/* Nav Links */
.nav-link {
  font-family: var(--font-body);
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-secondary);
  text-decoration: none;
  transition: all 0.2s ease;
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-md);
  position: relative;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 4px;
  left: 50%;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--color-orange), var(--color-gold));
  transform: translateX(-50%);
  transition: width 0.3s ease;
}

.nav-link:hover {
  color: var(--color-orange);
}

.nav-link:hover::after {
  width: calc(100% - var(--space-6));
}

[data-theme="dark"] .nav-link:hover {
  color: var(--color-orange-bright);
}

/* Theme Toggle (Emoji Style) */
.theme-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-secondary);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-full);
  padding: var(--space-2) var(--space-3);
  cursor: pointer;
  font-size: 1.25rem;
  transition: all 0.2s ease;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
  min-width: 44px;
  min-height: 44px;
}

.theme-toggle:hover {
  background: var(--bg-hover);
  border-color: var(--color-orange);
  transform: scale(1.05);
}

[data-theme="dark"] .theme-toggle {
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

[data-theme="dark"] .theme-toggle:hover {
  border-color: var(--color-orange-bright);
}

#theme-icon {
  display: block;
  line-height: 1;
}

/* ============================================
   MOBILE RESPONSIVE
   ============================================ */

@media (max-width: 768px) {
  .site-nav {
    padding-left: var(--space-3);
    padding-right: var(--space-3);
  }

  .site-logo {
    font-size: 1.1rem;
  }

  .nav-right {
    gap: var(--space-3);
  }

  .nav-link {
    font-size: 0.9rem;
    padding: var(--space-2);
  }

  .theme-toggle {
    font-size: 1rem;
    padding: var(--space-2);
    min-width: 40px;
    min-height: 40px;
  }
}

@media (max-width: 480px) {
  .site-nav {
    padding-left: var(--space-2);
    padding-right: var(--space-2);
  }

  .site-logo {
    font-size: 1rem;
  }

  .nav-right {
    gap: var(--space-2);
  }

  .nav-link {
    font-size: 0.85rem;
    padding: var(--space-1) var(--space-2);
  }
}