/* Mobile Navigation CSS - Optimized for visibility */

/* ===== DESKTOP: HIDE ALL MOBILE ELEMENTS ===== */
.mobile-bottom-nav,
.mobile-menu-toggle,
.mobile-nav-items,
.mobile-nav-item {
    display: none !important;
}

/* Mobile Bottom Navigation */
.mobile-bottom-nav {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.92);
    backdrop-filter: blur(16px) saturate(180%);
    -webkit-backdrop-filter: blur(16px) saturate(180%);
    border-top: 1px solid rgba(229, 231, 235, 0.6);
    padding: 6px 0;
    z-index: 1000;
    box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.08);
    padding-bottom: calc(6px + env(safe-area-inset-bottom));
}

.mobile-nav-items {
    flex-direction: row;
    justify-content: space-around;
    align-items: center;
    max-width: 100%;
    padding: 0 4px;
}

.mobile-nav-item {
    flex-direction: column;
    align-items: center;
    padding: 6px 8px;
    color: #9CA3AF;
    text-decoration: none;
    font-size: 0.7rem;
    min-width: 56px;
    min-height: 48px;
    transition: all 0.2s ease;
    border-radius: 10px;
    position: relative;
}

.mobile-nav-item i {
    font-size: 1.2rem;
    margin-bottom: 3px;
    transition: transform 0.2s ease;
}

.mobile-nav-item.active {
    color: #0B1F3B;
}

.mobile-nav-item.active i {
    transform: scale(1.1);
}

.mobile-nav-item.active::after {
    content: '';
    position: absolute;
    bottom: 2px;
    left: 50%;
    transform: translateX(-50%);
    width: 20px;
    height: 3px;
    border-radius: 3px;
    background: linear-gradient(135deg, #0B1F3B 0%, #1a365d 100%);
}

.mobile-nav-item span {
    font-size: 0.62rem;
    font-weight: 600;
    letter-spacing: 0.01em;
}

/* Mobile Menu Toggle - now handled inside .top-bar-hamburger */
.mobile-menu-toggle {
    display: none !important;
}

.mobile-menu-toggle i {
    font-size: 1.25rem;
    color: #0B1F3B;
}

/* Sidebar Overlay */
.sidebar-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 99;
}

.sidebar-overlay.active {
    display: block;
}

/* User Menu Backdrop for mobile */
.user-menu-backdrop {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.6);
    z-index: 1999;
}

.user-menu-backdrop.active {
    display: block;
}

/* Profile & Settings Dropdown - DESKTOP */
.user-menu-dropdown {
    position: absolute;
    top: calc(100% + 0.5rem);
    right: 0;
    background: white;
    border: 1px solid #E5E7EB;
    border-radius: 12px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.15);
    min-width: 260px;
    display: none;
    z-index: 2000;
    padding-bottom: 0.5rem;
}

.user-menu-dropdown.active {
    display: block !important;
}

.user-menu-header {
    padding: 1rem;
    border-bottom: 1px solid #E5E7EB;
}

.user-menu-item {
    display: flex !important;
    align-items: center;
    gap: 0.75rem;
    padding: 0.875rem 1rem;
    color: #374151;
    text-decoration: none;
    transition: background 0.2s;
    border: none;
}

.user-menu-item:hover {
    background: #F3F4F6;
}

.user-menu-item i {
    width: 20px;
    font-size: 1rem;
}

/* Mobile Responsive - TABLETS AND PHONES */
@media (max-width: 1024px) {
    .sidebar {
        transform: translateX(-100%);
        transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    }
    
    .sidebar.active {
        transform: translateX(0);
    }
    
    .main-content {
        margin-left: 0 !important;
        padding-bottom: 90px;
    }

    .mobile-bottom-nav {
        bottom: 0;
    }
    
    /* Show bottom nav on tablet/mobile */
    .mobile-menu-toggle {
        display: none !important;
    }
    .mobile-bottom-nav {
        display: block !important;
    }
    
    .mobile-nav-items {
        display: flex !important;
    }
    .mobile-nav-item {
        display: flex !important;
    }
    
    .top-bar {
        padding-left: 14px;
    }
    
    /* MOBILE: Full-screen user menu */
    .user-menu-dropdown {
        position: fixed !important;
        top: 50% !important;
        left: 50% !important;
        right: auto !important;
        bottom: auto !important;
        transform: translate(-50%, -50%) !important;
        width: 85% !important;
        max-width: 340px !important;
        max-height: 85vh !important;
        overflow-y: auto !important;
        -webkit-overflow-scrolling: touch !important;
        box-shadow: 0 0 50px rgba(0, 0, 0, 0.4) !important;
        border-radius: 16px !important;
        padding-bottom: 0.5rem !important;
    }
    
    .user-menu-header {
        padding: 1rem;
        background: linear-gradient(135deg, #0B1F3B 0%, #1a365d 100%);
        color: white;
        border-radius: 16px 16px 0 0;
        margin: 0 !important;
    }
    
    .user-menu-header div:first-child {
        color: white !important;
    }
    
    .user-menu-header div:last-child {
        color: rgba(255, 255, 255, 0.8) !important;
    }
    
    .user-menu-item {
        padding: 1rem 1.25rem !important;
        font-size: 1rem !important;
        display: flex !important;
        border-bottom: 1px solid #F3F4F6 !important;
    }
    
    .user-menu-item:last-child {
        border-bottom: none !important;
        border-top: 2px solid #E5E7EB !important;
        margin-top: 0.5rem !important;
    }
    
    .user-menu-item i {
        font-size: 1.1rem !important;
    }
    
    /* Grid adjustments - tablet gets 2 columns */
    .grid-3, .grid-4 {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .snapshots-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* Small phones */
@media (max-width: 480px) {
    .user-menu-dropdown {
        bottom: 75px !important;
        max-height: 350px !important;
    }
    
    .snapshots-grid {
        grid-template-columns: 1fr;
    }
    
    .mobile-nav-item span {
        font-size: 0.6rem;
    }
}