/* === Header === */
.landing-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: var(--z-sticky);
  padding: var(--space-4) 0;
  background: var(--header-bg, rgba(10, 10, 15, 0.9));
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--glass-border);
}

/* Light mode header */
[data-theme="light"] .landing-header {
  background: rgba(255, 255, 255, 0.9);
}

[data-theme="light"] .logo {
  color: #1a1a2e;
}

[data-theme="light"] .header-nav a {
  color: #4a4a5a;
}

[data-theme="light"] .header-nav a:hover {
  color: #1a1a2e;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  padding: 0 var(--space-2);
  /* Move inward from edge but kept close */
}

.logo {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-bold);
  color: var(--text-primary);
  text-decoration: none;
  margin-left: calc(-1 * var(--space-4));
  /* Pull left outside standard container padding */
}

.logo-icon {
  width: 32px;
  height: 32px;
  background: var(--accent-gradient);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
}

.header-nav {
  display: flex;
  align-items: center;
  gap: var(--space-6);
}

.header-nav a {
  color: var(--text-secondary);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  transition: color var(--transition-fast);
}

.header-nav a:hover {
  color: var(--text-primary);
  text-decoration: none;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

/* Theme Toggle */
.theme-toggle {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.theme-toggle:hover {
  background: var(--glass-bg-hover);
  color: var(--text-primary);
}

/* Language Selector */
.lang-select {
  position: relative;
}

.lang-trigger {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-3);
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  color: var(--text-secondary);
  cursor: pointer;
}

.lang-trigger:hover {
  background: var(--glass-bg-hover);
  color: var(--text-primary);
}

.lang-short {
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
  letter-spacing: 0.08em;
}

.lang-label {
  font-size: var(--font-size-xs);
}

.lang-caret {
  font-size: 10px;
}

.lang-menu {
  position: absolute;
  top: calc(100% + var(--space-2));
  right: 0;
  min-width: 140px;
  padding: var(--space-2);
  border-radius: var(--radius-md);
  border: 1px solid var(--glass-border);
  background: var(--color-bg-primary);
  box-shadow: var(--shadow-md);
  display: none;
  z-index: var(--z-sticky);
}

.lang-select:hover .lang-menu,
.lang-select:focus-within .lang-menu {
  display: block;
}

.lang-option {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-md);
  color: var(--text-secondary);
  font-size: var(--font-size-sm);
}

.lang-option:hover {
  color: var(--text-primary);
  background: var(--glass-bg-hover);
  text-decoration: none;
}

.lang-option.active {
  color: var(--text-primary);
  background: var(--glass-bg);
}

/* === Main Content === */
.landing-main {
  min-height: 100vh;
  padding-top: 80px;
  /* Header height */
}

/* === Footer === */
.landing-footer {
  padding: var(--space-8) 0;
  border-top: 1px solid var(--glass-border);
  background: var(--color-bg-secondary);
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  flex-wrap: wrap;
}

.footer-links {
  display: flex;
  gap: var(--space-6);
}

.footer-links a {
  color: var(--text-muted);
  font-size: var(--font-size-sm);
}

.footer-links a:hover {
  color: var(--text-primary);
}

.footer-copy {
  color: var(--text-muted);
  font-size: var(--font-size-sm);
}

/* Mobile Header */
@media (max-width: 768px) {
  .landing-header {
    padding: 6px 0;
  }

  .header-inner {
    flex-wrap: wrap;
    align-items: center;
    gap: var(--space-2);
  }

  .logo {
    margin-left: 0;
  }

  .logo img {
    height: 40px;
  }

  .header-nav {
    order: 3;
    width: 100%;
    flex-basis: 100%;
    flex-wrap: nowrap;
    gap: var(--space-2);
    padding-top: 2px;
    justify-content: center;
    overflow-x: auto;
  }

  .header-nav a {
    font-size: 0.72rem;
    line-height: 1.1;
    padding: 2px 6px;
    text-align: center;
    white-space: nowrap;
  }

  .header-actions {
    order: 2;
    margin-left: auto;
    gap: var(--space-1);
  }

  .lang-trigger {
    padding: 2px 6px;
  }

  .theme-toggle {
    width: 30px;
    height: 30px;
  }

  .lang-label {
    display: none;
  }

  .landing-main {
    padding-top: 72px;
  }

  .footer-inner {
    flex-direction: column;
    text-align: center;
  }
}