/**
 * Navigation Menu Styles
 * Accessible expandable menu with ARIA support
 */

/* =================================================================
   MAIN NAVIGATION
   ================================================================= */

.main-nav {
    flex: 0 0 auto;
    overflow: visible;
    padding: 0;
    transition: opacity var(--transition-base), transform var(--transition-base);
}

.menu-list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

/* =================================================================
   MENU ITEMS
   ================================================================= */

.menu-button {
    width: 100%;
    display: flex;
    align-items: center;
    gap: 0.65rem;
    padding: 0.55rem 0.9rem;
    background-color: #ffffff;
    border: 1px solid rgba(148, 163, 184, 0.35);
    border-radius: 1.2rem;
    text-align: left;
    font-size: 1rem;
    color: #111827;
    cursor: pointer;
    transition: background-color var(--transition-fast), border-color var(--transition-fast), box-shadow var(--transition-fast);
    min-height: 48px;
    box-shadow: 0 12px 28px rgba(15, 23, 42, 0.06);
}

.menu-button:hover {
    border-color: #1a5632;
    box-shadow: 0 16px 32px rgba(26, 86, 50, 0.12);
    transform: translateY(-1px);
}

.menu-button[aria-expanded="true"] {
    border-color: #1a5632;
    box-shadow: 0 18px 36px rgba(26, 86, 50, 0.18);
}

.menu-button[aria-expanded="true"] .menu-text {
    color: #1a5632;
}

.menu-button[aria-expanded="true"] .menu-count {
    color: #0f5132;
}

.menu-button:hover .menu-icon,
.menu-button[aria-expanded="true"] .menu-icon {
    background-color: #1a5632;
    color: #ffffff;
}

.menu-icon {
    width: 30px;
    height: 30px;
    border-radius: 1rem;
    background-color: #154f33;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.15);
    color: #ffffff;
    font-size: 1.05rem;
}

.menu-label-group {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 0.2rem;
}

.menu-text {
    font-size: 0.95rem;
    font-weight: 600;
    color: #0f172a;
}

/* WCAG 1.4.3: #64748b on white is ~4.0:1 (fails). #595f6b is ~4.6:1 (passes). */
.menu-count {
    font-size: 0.8rem;
    color: #595f6b;
    display: none;
}

/* WCAG 1.4.3: #64748b replaced with #595f6b on chevron and its border */
.menu-chevron {
    width: 18px;
    height: 18px;
    flex-shrink: 0;
    transition: transform var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #595f6b;
}

.menu-chevron::after {
    content: '';
    display: inline-block;
    width: 6px;
    height: 6px;
    border-right: 2px solid #595f6b;
    border-bottom: 2px solid #595f6b;
    transform: rotate(-45deg);
    transition: transform var(--transition-fast), border-color var(--transition-fast);
}

.menu-button:hover .menu-chevron::after {
    border-color: #1a5632;
}

.menu-button[aria-expanded="true"] .menu-chevron::after {
    transform: rotate(45deg);
    border-color: #1a5632;
}

.menu-button:hover .menu-icon i,
.menu-button[aria-expanded="true"] .menu-icon i {
    color: #ffffff;
}

.category-section-header--parking {
    margin-top: 1rem;
}

.parking-icon {
    border-radius: 1rem;
    display: inline-flex;
}

.parking-icon--public {
    background-color: var(--color-parking-public);
}

.parking-icon--student {
    background-color: var(--color-parking-student);
}

.parking-icon--employee {
    background-color: var(--color-parking-employee);
}

/* =================================================================
   SUBMENU (Picklist)
   ================================================================= */

.submenu {
    list-style: none;
    padding: 0 0 0 3.5rem;
    margin: 0.35rem 0 0;
    background-color: transparent;
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-base) ease-in-out;
}

/* When expanded */
.submenu:not([hidden]) {
    max-height: 500px; /* Adjust based on content */
    margin-bottom: 0.5rem;
}

.submenu li {
    border: none;
}

.submenu-button {
    width: 100%;
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: 0.65rem 0.75rem;
    background-color: transparent;
    border: none;
    text-align: left;
    font-size: var(--font-size-sm);
    color: var(--color-text);
    cursor: pointer;
    transition: all var(--transition-fast);
    min-height: 44px;
    border-radius: 0.75rem;
}

.submenu-button:hover {
    background-color: rgba(26, 86, 50, 0.08);
    color: #0f172a;
}

.submenu-button:focus-visible {
    outline: 2px solid #1a5632;
    outline-offset: 2px;
}

/* Active/selected state */
.submenu-button[aria-current="true"],
.submenu-button.active {
    background-color: var(--color-primary);
    color: var(--color-white);
    font-weight: var(--font-weight-medium);
}

/* Color Swatch for Parking Categories */
.color-swatch {
    display: inline-block;
    width: 12px;
    height: 12px;
    border-radius: 2px;
    flex-shrink: 0;
    border: 1px solid rgba(0, 0, 0, 0.1);
    margin-right: var(--spacing-xs);
}

.submenu-label {
    flex: 1;
}

/* Parking submenu buttons - always light background */
#parking-list .submenu-button {
    background-color: transparent;
    color: #212121;
}

#parking-list .submenu-button:hover {
    background-color: rgba(26, 86, 50, 0.08);
    color: #0f172a;
}

/* =================================================================
   BUILDING LIST PANEL
   ================================================================= */

.building-list {
    list-style: none;
    padding: 0;
    margin: 0;
    background-color: var(--color-surface);
    border-top: 1px solid var(--color-border);
}

.building-list li {
    border-bottom: 1px solid var(--color-border);
}

.building-list li:last-child {
    border-bottom: none;
}

.building-list-item {
    width: 100%;
    display: block;
    padding: var(--spacing-md) var(--spacing-lg) var(--spacing-md) var(--spacing-2xl);
    background-color: var(--color-surface);
    border: none;
    text-align: left;
    font-size: var(--font-size-sm);
    color: var(--color-text);
    cursor: pointer;
    transition: all var(--transition-fast);
    min-height: 44px;
    line-height: var(--line-height-normal);
    word-wrap: break-word;
}

.building-list-item:hover {
    background-color: var(--color-primary);
    color: var(--color-white);
}

.building-list-item:focus-visible {
    background-color: var(--color-primary);
    color: var(--color-white);
    outline: 3px solid var(--focus-ring-color);
    outline-offset: -3px;
}

.weather-widget {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md);
    margin: var(--spacing-md);
    background-color: var(--color-surface);
    border-radius: var(--radius-md);
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
}

.weather-location {
    font-weight: var(--font-weight-medium);
}

.weather-icon {
    width: 32px;
    height: 32px;
    background-size: contain;
    background-repeat: no-repeat;
    background-position: center;
}

.weather-temp {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-semibold);
    color: var(--color-text);
}

/* =================================================================
   SCROLLBAR STYLING (for webkit browsers)
   ================================================================= */

.main-nav::-webkit-scrollbar {
    width: 8px;
}

.main-nav::-webkit-scrollbar-track {
    background-color: var(--color-surface);
}

.main-nav::-webkit-scrollbar-thumb {
    background-color: var(--color-gray-400);
    border-radius: var(--radius-full);
}

.main-nav::-webkit-scrollbar-thumb:hover {
    background-color: var(--color-gray-500);
}


/* =================================================================
   REDUCED MOTION
   ================================================================= */

@media (prefers-reduced-motion: reduce) {
    .submenu {
        transition: none;
    }
    
    .menu-chevron {
        transition: none;
    }
}

/* =================================================================
   MOBILE ADJUSTMENTS
   ================================================================= */

@media (max-width: 800px) {
    .menu-button {
        padding: var(--spacing-md);
    }
    
    .submenu-button {
        padding-left: var(--spacing-xl);
    }
    
    .submenu-button:hover {
        padding-left: calc(var(--spacing-xl) + var(--spacing-xs));
    }
    
    .weather-widget {
        margin: var(--spacing-md) var(--spacing-sm);
    }
}