/* ===========================================
   NAVBAR BASE (global, all pages)
   =========================================== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 var(--space-6);
  background: transparent;
  z-index: var(--z-fixed);
  transition: background var(--duration-base) var(--ease-out),
              box-shadow var(--duration-base) var(--ease-out),
              border-color var(--duration-base) var(--ease-out);
}

.navbar.scrolled {
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border-bottom: 1px solid var(--glass-border);
  box-shadow: var(--glass-shadow);
}

.navbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  gap: var(--space-4);
}

.navbar-brand {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-lg);
  font-weight: var(--font-bold);
  color: var(--color-primary);
}

.navbar-brand svg {
  width: 28px;
  height: 28px;
}

.navbar-menu {
  display: flex;
  align-items: center;
  gap: var(--space-1);
}

/* Solid, legible navbar on content (non-map) pages */
body:not(.map-page) .navbar {
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border-bottom: 1px solid var(--glass-border);
  box-shadow: var(--glass-shadow);
}

/* ===========================================
   THEME TOGGLE FLOATING BUTTON
   =========================================== */
.theme-toggle-floating {
  position: fixed;
  top: var(--space-6);
  right: var(--space-6);
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-full);
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border);
  box-shadow: var(--glass-shadow);
  color: var(--color-on-surface);
  z-index: var(--z-fixed);
  transition: all var(--duration-base) var(--ease-spring);
}

.theme-toggle-floating:hover {
  background: var(--glass-bg-strong);
  transform: scale(1.05);
  box-shadow: var(--glass-shadow-strong);
}

.theme-toggle-floating:active {
  transform: scale(0.95);
}

.theme-toggle-floating:focus-visible {
  outline: none;
  box-shadow: 0 0 0 3px var(--color-primary);
}

.theme-toggle-floating svg {
  width: 22px;
  height: 22px;
  position: absolute;
  transition: all var(--duration-base) var(--ease-out);
}

.theme-toggle-floating .sun-icon {
  opacity: 1;
  transform: rotate(0deg) scale(1);
}

.theme-toggle-floating .moon-icon {
  opacity: 0;
  transform: rotate(-90deg) scale(0);
}

.theme-toggle-floating.dark .sun-icon {
  opacity: 0;
  transform: rotate(90deg) scale(0);
}

.theme-toggle-floating.dark .moon-icon {
  opacity: 1;
  transform: rotate(0deg) scale(1);
}

@media (max-width: 767px) {
  .theme-toggle-floating {
    top: var(--space-4);
    right: var(--space-16);
    width: 40px;
    height: 40px;
  }

  .theme-toggle-floating svg {
    width: 18px;
    height: 18px;
  }
}

/* ===========================================
   NAVBAR - Transparent overlay
   =========================================== */
.navbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--space-6);
}

.navbar-brand {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-lg);
  font-weight: var(--font-bold);
  color: var(--color-primary);
  text-decoration: none;
  z-index: var(--z-fixed + 1);
}

.navbar-brand svg {
  width: 28px;
  height: 28px;
}

.navbar-brand span {
  color: var(--color-on-surface);
}

.navbar.scrolled .navbar-brand span {
  color: var(--color-on-surface);
}

.navbar-menu {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  flex: 1;
  justify-content: center;
  overflow: hidden;
  min-width: 0;
}

.navbar-link {
  display: flex;
  align-items: center;
  height: 40px;
  padding: 0 var(--space-3);
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  color: var(--color-on-surface-variant);
  border-radius: var(--radius-md);
  text-decoration: none;
  white-space: nowrap;
  transition: all var(--duration-fast);
}

.navbar-link:hover {
  color: var(--color-on-surface);
  background: var(--color-surface-container);
}

.navbar-link.active {
  color: var(--color-primary);
  background: var(--color-primary-50);
}

[data-theme="dark"] .navbar-link.active {
  background: var(--color-primary-900);
}

.navbar-actions {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  z-index: var(--z-fixed + 1);
}

.navbar-toggle {
  display: none;
  width: 40px;
  height: 40px;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  color: var(--color-on-surface);
  background: transparent;
  border: none;
}

.navbar-toggle:hover {
  background: var(--color-surface-container);
}

.navbar-toggle svg {
  width: 24px;
  height: 24px;
  stroke: currentColor;
  stroke-width: 2;
}

@media (max-width: 1023px) {
  .navbar {
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border-bottom: 1px solid var(--glass-border);
  }

  .navbar-menu {
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    bottom: 0;
    flex-direction: column;
    align-items: stretch;
    padding: var(--space-6);
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border-top: 1px solid var(--glass-border);
    transform: translateY(-100%);
    opacity: 0;
    visibility: hidden;
    transition: all var(--duration-base) var(--ease-out);
    gap: var(--space-2);
    z-index: var(--z-fixed);
  }

  .navbar-menu.open {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }

  .navbar-link {
    justify-content: center;
    padding: var(--space-3);
    font-size: var(--text-base);
  }

  .navbar-toggle {
    display: flex;
    z-index: var(--z-fixed + 2);
  }

  .navbar-actions {
    display: none;
  }
}

@media (min-width: 1024px) {
  .navbar:not(.scrolled) .navbar-brand span {
    color: var(--color-on-surface);
  }

  .navbar:not(.scrolled) .navbar-link {
    color: var(--color-on-surface-variant);
  }
}