/* Mobile Bottom Navigation Styles */

/* Mobile Bottom Navigation Bar */
.mobile-bottom-nav {
    display: none;
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    height: 70px;
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.68) 0%, rgba(118, 75, 162, 0.68) 100%);
    box-shadow: 0 -2px 10px rgba(0,0,0,0.1);
    z-index: 1000;
    padding: 8px 0;
    backdrop-filter: blur(18px) saturate(180%);
    -webkit-backdrop-filter: blur(18px) saturate(180%);
    background-color: rgba(255, 255, 255, 0.08);
}

/* Show mobile navigation on mobile devices */
@media (max-width: 1023px) {
    .mobile-bottom-nav {
        display: block !important;
    }
}

.mobile-nav-items {
    display: flex;
    justify-content: space-around;
    align-items: center;
    height: 100%;
    max-width: 600px;
    margin: 0 auto;
    padding: 0 10px;
}

.mobile-nav-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: white;
    text-decoration: none;
    padding: 8px 12px;
    border-radius: 8px;
    transition: all 0.3s ease;
    position: relative;
    min-width: 60px;
    background: rgba(255,255,255,0.1);
    border: 1px solid rgba(255,255,255,0.2);
}

.mobile-nav-item:hover {
    background: rgba(255,255,255,0.2);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
}

.mobile-nav-item i {
    font-size: 1.2rem;
    margin-bottom: 4px;
    transition: all 0.3s ease;
}

.mobile-nav-item span {
    font-size: 0.65rem;
    font-weight: 500;
    text-align: center;
    line-height: 1;
}

.mobile-nav-badge {
    position: absolute;
    top: 4px;
    right: 4px;
    background: #ff4757;
    color: white;
    border-radius: 8px;
    padding: 2px 5px;
    font-size: 0.6rem;
    font-weight: 600;
    min-width: 16px;
    text-align: center;
    box-shadow: 0 2px 4px rgba(255,71,87,0.3);
}

/* Mobile Dropdown Menu */
.mobile-dropdown {
    position: relative;
}

.mobile-dropdown-menu {
    position: absolute;
    bottom: 100%;
    right: -10px;
    background: white;
    border-radius: 12px;
    box-shadow: 0 -5px 20px rgba(0,0,0,0.15);
    min-width: 250px;
    max-height: 400px;
    overflow-y: auto;
    display: none;
    margin-bottom: 8px;
    transform-origin: bottom right;
    animation: slideUp 0.3s ease;
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.mobile-dropdown-menu.show {
    display: block;
}

.mobile-dropdown-item {
    display: block;
    padding: 12px 15px;
    color: #333;
    text-decoration: none;
    border-bottom: 1px solid #f0f0f0;
    transition: background 0.3s ease;
    font-size: 0.9rem;
}

.mobile-dropdown-item:hover {
    background: #f8f9fa;
}

.mobile-dropdown-item:last-child {
    border-bottom: none;
}

.mobile-dropdown-item i {
    margin-right: 8px;
    width: 16px;
    color: #667eea;
}

/* Badge for dropdown items */
.mobile-dropdown-item .mobile-nav-badge {
    position: absolute;
    top: 6px;
    right: 8px;
    background: #ff4757;
    color: white;
    border-radius: 8px;
    padding: 2px 5px;
    font-size: 0.6rem;
    font-weight: 600;
    min-width: 16px;
    text-align: center;
    box-shadow: 0 2px 4px rgba(255,71,87,0.3);
    z-index: 1;
}

.mobile-dropdown-divider {
    padding: 5px 0;
    border-bottom: 1px solid #eee;
    margin: 5px 0;
}

.mobile-dropdown-header {
    padding: 10px 15px;
    font-weight: 600;
    color: #667eea;
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    background: #f8f9fa;
}

/* Mobile Dropdown Overlay */
.mobile-dropdown-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.3);
    z-index: 999;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}

.mobile-dropdown-overlay.active {
    opacity: 1;
    visibility: visible;
}

/* Adjust main content for bottom nav */
@media (max-width: 1023px) {
    .main-content {
        padding-bottom: 90px !important;
    }
}

/* Tablet behavior (768px - 1023px) */
@media (min-width: 768px) and (max-width: 1023px) {
    .mobile-bottom-nav {
        height: 75px;
    }
    
    .mobile-nav-item {
        min-width: 70px;
        padding: 10px 15px;
    }
    
    .mobile-nav-item i {
        font-size: 1.3rem;
    }
    
    .mobile-nav-item span {
        font-size: 0.7rem;
    }
    
    .mobile-dropdown-menu {
        min-width: 280px;
    }
}

/* Small mobile behavior (max-width: 767px) */
@media (max-width: 767px) {
    .mobile-bottom-nav {
        height: 65px;
        padding: 5px 0;
    }
    
    .mobile-nav-item {
        min-width: 50px;
        padding: 6px 8px;
    }
    
    .mobile-nav-item i {
        font-size: 1.1rem;
    }
    
    .mobile-nav-item span {
        font-size: 0.6rem;
    }
    
    .mobile-dropdown-menu {
        min-width: 200px;
        right: -5px;
    }
    
    .mobile-dropdown-item {
        padding: 10px 12px;
        font-size: 0.85rem;
    }
}

/* Large mobile (phablets) */
@media (min-width: 414px) and (max-width: 767px) {
    .mobile-nav-item {
        min-width: 55px;
    }
    
    .mobile-nav-item span {
        font-size: 0.65rem;
    }
}

/* Very small mobile */
@media (max-width: 360px) {
    .mobile-nav-item {
        min-width: 45px;
        padding: 5px 6px;
    }
    
    .mobile-nav-item i {
        font-size: 1rem;
    }
    
    .mobile-nav-item span {
        font-size: 0.55rem;
    }
    
    .mobile-dropdown-menu {
        min-width: 180px;
    }
}

/* Safe area for iPhone X and newer */
@supports (padding: max(0px)) {
    .mobile-bottom-nav {
        padding-bottom: max(8px, env(safe-area-inset-bottom));
        height: calc(70px + env(safe-area-inset-bottom));
    }
    
    @media (max-width: 1023px) {
        .main-content {
            padding-bottom: calc(90px + env(safe-area-inset-bottom)) !important;
        }
    }
}

/* iPhone 13/14 specific adjustments (390px width) */
@media (max-width: 430px) and (min-width: 380px) {
    .mobile-bottom-nav {
        height: calc(70px + env(safe-area-inset-bottom, 0px));
    }
    
    .mobile-nav-item {
        min-width: 55px;
        padding: 8px 10px;
    }
    
    .mobile-nav-item i {
        font-size: 1.25rem;
    }
    
    .mobile-nav-item span {
        font-size: 0.67rem;
    }
}

/* iPhone 13 Pro Max/14 Pro Max specific adjustments (428px width) */
@media (max-width: 430px) and (min-width: 420px) {
    .mobile-bottom-nav {
        height: calc(75px + env(safe-area-inset-bottom, 0px));
    }
    
    .mobile-nav-item {
        min-width: 60px;
        padding: 10px 12px;
    }
    
    .mobile-nav-item i {
        font-size: 1.3rem;
    }
    
    .mobile-nav-item span {
        font-size: 0.7rem;
    }
}

/* Chat page specific mobile nav adjustments */
@media (max-width: 1023px) {
    body:has(.chat-page-wrapper) .mobile-bottom-nav {
        z-index: 1001; /* Ensure it stays above chat content */
    }
}

/* Active state for navigation items */
.mobile-nav-item.active {
    background: rgba(255,255,255,0.25);
    border-color: rgba(255,255,255,0.4);
}

.mobile-nav-item.active i {
    color: #ffd700;
}

/* Focus states for accessibility */
.mobile-nav-item:focus {
    outline: 2px solid #ffd700;
    outline-offset: 2px;
}

/* Reduce motion for users who prefer it */
@media (prefers-reduced-motion: reduce) {
    .mobile-nav-item,
    .mobile-dropdown-menu,
    .mobile-dropdown-overlay {
        transition: none;
        animation: none;
    }
}