/* CC-02b Wave 2 - extracted from FRONTEND/05_communication/notifications-center.html */
:root {
            /* Light theme colors (default) */
            --bg-primary: #ffffff;
            --bg-secondary: #fdf2f8;
            --bg-tertiary: #fce7f3;
            --bg-quaternary: #fbcfe8;
            --text-primary: #1f2937;
            --text-secondary: #6b7280;
            --text-accent: #ec4899;
            --border-color: #f3e8ff;
            --celebration-orange: #fb923c;
            --gradient-1: linear-gradient(135deg, var(--love-pink), var(--marriage-gold));
            --gradient-2: linear-gradient(135deg, var(--destiny-purple), var(--love-pink));
            --gradient-3: linear-gradient(135deg, var(--bg-secondary), var(--bg-tertiary));
            --gradient-4: linear-gradient(45deg, var(--love-pink), var(--celebration-orange), var(--marriage-gold));
        }

        /* Dark theme colors - Marriage Lifecycle inspired */
        .dark {
            --bg-primary: #0a0015;
            --bg-secondary: #1a0526;
            --bg-tertiary: #2d1b3d;
            --bg-quaternary: #3d2754;
            --text-primary: #ffffff;
            --text-secondary: #e8d5e8;
            --text-accent: #ff6b9d;
            --border-color: #5d3a7a;
        }

        body {
            font-family: 'Inter', 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            background: radial-gradient(ellipse at top, var(--bg-secondary), var(--bg-primary));
            color: var(--text-primary);
            transition: all 0.3s ease;
            min-height: 100vh;
        }

        /* Enhanced notification cards */

        .notification-card.unread:hover {
            box-shadow: 0 1.25rem 3.75rem rgba(255, 107, 157, 0.3),
                        0 0 5rem rgba(255, 107, 157, 0.2);
        }

        /* Floating action elements */
        .floating-action {
            background: var(--gradient-1);
            border-radius: 50%;
            width: 3rem;
            height: 3rem;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 0.5rem 2rem rgba(255, 107, 157, 0.4);
            transition: all 0.3s cubic-bezier(0.23, 1, 0.32, 1);
            border: 0.125rem solid rgba(255, 255, 255, 0.1);
        }

        .floating-action:hover {
            transform: scale(1.1) rotate(5deg);
            box-shadow: 0 0.75rem 3rem rgba(255, 107, 157, 0.6);
        }

        /* Enhanced tabs */
        .notification-tab {
            position: relative;
            padding: 1rem 1.5rem;
            border-radius: 1rem;
            transition: all 0.3s ease;
            backdrop-filter: blur(0.625rem);
            margin: 0 0.5rem;
        }

        .notification-tab.active {
            background: var(--gradient-1);
            color: white;
            box-shadow: 0 0.5rem 2rem rgba(255, 107, 157, 0.3);
            transform: translateY(-0.125rem);
        }

        .notification-tab:not(.active) {
            background: rgba(255, 255, 255, 0.05);
            color: var(--text-secondary);
            border: 0.0625rem solid rgba(255, 255, 255, 0.1);
        }

        .notification-tab:not(.active):hover {
            background: rgba(255, 255, 255, 0.1);
            color: var(--text-primary);
            transform: translateY(-0.0625rem);
        }

        /* Enhanced badges */
        .enhanced-badge {
            background: var(--gradient-4);
            color: white;
            padding: 0.25rem 0.75rem;
            border-radius: 1rem;
            font-size: 0.75rem;
            font-weight: 600;
            animation: glow 2s ease-in-out infinite alternate;
            box-shadow: 0 0.25rem 1rem rgba(255, 107, 157, 0.3);
        }

        /* Avatar with gradient border */
        .notification-avatar {
            width: 3.5rem;
            height: 3.5rem;
            border-radius: 50%;
            position: relative;
            padding: 0.1875rem;
            background: var(--gradient-1);
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .notification-avatar img {
            width: 100%;
            height: 100%;
            border-radius: 50%;
            object-fit: cover;
            border: 0.125rem solid var(--bg-primary);
        }

        .notification-avatar .fallback {
            width: calc(100% - 0.375rem);
            height: calc(100% - 0.375rem);
            border-radius: 50%;
            background: var(--gradient-2);
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            font-weight: 600;
            font-size: 1.2rem;
        }

        /* Enhanced action buttons */
        .action-button {
            padding: 0.75rem 1.5rem;
            border-radius: 0.75rem;
            font-weight: 600;
            transition: all 0.3s cubic-bezier(0.23, 1, 0.32, 1);
            position: relative;
            overflow: hidden;
            backdrop-filter: blur(0.625rem);
        }

        .action-button::before {
            content: '';
            position: absolute;
            top: 6.25rem;
            left: -100%;
            width: 100%;
            height: 100%;
            background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
            transition: left 0.5s;
        }

        .action-button:hover::before {
            left: 100%;
        }

        .action-button:hover {
            transform: translateY(-0.125rem);
            box-shadow: 0 0.5rem 1.5625rem rgba(0, 0, 0, 0.15);
        }

        .action-primary {
            background: var(--gradient-1);
            color: white;
            border: none;
        }

        .action-secondary {
            background: rgba(255, 255, 255, 0.1);
            color: var(--text-primary);
            border: 0.0625rem solid rgba(255, 255, 255, 0.2);
        }

        .action-success {
            background: linear-gradient(135deg, var(--harmony-green), #059669);
            color: white;
            border: none;
        }

        .action-danger {
            background: linear-gradient(135deg, #ef4444, #dc2626);
            color: white;
            border: none;
        }

        /* Icon containers */
        .notification-icon {
            width: 4rem;
            height: 4rem;
            border-radius: 1rem;
            display: flex;
            align-items: center;
            justify-content: center;
            position: relative;
            overflow: hidden;
        }

        .notification-icon::before {
            content: '';
            position: absolute;
            inset: 0;
            background: var(--gradient-1);
            opacity: 0.1;
            border-radius: 1rem;
        }

        .icon-match { background: linear-gradient(135deg, var(--love-pink), #e91e63); }
        .icon-message { background: linear-gradient(135deg, var(--eternity-blue), #1e40af); }
        .icon-interest { background: linear-gradient(135deg, var(--celebration-orange), #ea580c); }
        .icon-view { background: linear-gradient(135deg, var(--harmony-green), #059669); }
        .icon-astro { background: linear-gradient(135deg, var(--destiny-purple), #7c3aed); }
        .icon-system { background: linear-gradient(135deg, #6b7280, #374151); }

        /* Floating particles animation */
        .particles {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            pointer-events: none;
            z-index: 1;
        }

        .particle {
            position: absolute;
            background: var(--love-pink);
            border-radius: 50%;
            animation: float 6s infinite ease-in-out;
            opacity: 0.1;
        }

        /* Hide scrollbars but keep functionality */
        .tabs-container {
            overflow-x: auto;
            scrollbar-width: none; /* Firefox */
            -ms-overflow-style: none; /* Internet Explorer 10+ */
        }

        .tabs-container::-webkit-scrollbar {
            display: none; /* WebKit */
        }

        /* Enhanced main content scrollbar */
        ::-webkit-scrollbar {
            width: 0.5rem;
        }

        ::-webkit-scrollbar-track {
            background: rgba(255, 255, 255, 0.05);
            border-radius: 0.25rem;
        }

        ::-webkit-scrollbar-thumb {
            background: var(--gradient-1);
            border-radius: 0.25rem;
        }

        ::-webkit-scrollbar-thumb:hover {
            background: var(--gradient-2);
        }

        /* Responsive tab design */
        @media (max-width: 768px) {
            .notification-tab {
                padding: 0.75rem 1rem;
                margin: 0 0.25rem;
                font-size: 0.875rem;
            }

            .notification-tab i {
                display: none;
            }

            .notification-tab span {
                margin-left: 0.5rem;
            }
        }

        @media (max-width: 640px) {
            .notification-tab {
                padding: 0.5rem 0.75rem;
                margin: 0 0.125rem;
                font-size: 0.8rem;
            }
        }

        /* Stats cards enhancement */
        .stats-card {
            background: linear-gradient(145deg, rgba(255, 255, 255, 0.1), rgba(255, 255, 255, 0.05));
            backdrop-filter: blur(1.25rem);
            border: 0.0625rem solid rgba(255, 255, 255, 0.1);
            border-radius: 1.5rem;
            padding: 2rem;
            position: relative;
            overflow: hidden;
            transition: all 0.3s cubic-bezier(0.23, 1, 0.32, 1);
        }

        .stats-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 0.25rem;
            background: var(--gradient-1);
        }

        .stats-card:hover {
            transform: translateY(-0.3125rem);
            box-shadow: 0 1.25rem 2.5rem rgba(255, 107, 157, 0.15);
        }

        /* Filter chips enhancement */
        .filter-chip {
            padding: 0.75rem 1.5rem;
            border-radius: 2rem;
            transition: all 0.3s cubic-bezier(0.23, 1, 0.32, 1);
            backdrop-filter: blur(0.625rem);
            position: relative;
            overflow: hidden;
        }

        .filter-chip.active {
            background: var(--gradient-1);
            color: white;
            box-shadow: 0 0.5rem 2rem rgba(255, 107, 157, 0.3);
        }

        .filter-chip:not(.active) {
            background: rgba(255, 255, 255, 0.05);
            color: var(--text-secondary);
            border: 0.0625rem solid rgba(255, 255, 255, 0.1);
        }

        .filter-chip:not(.active):hover {
            background: rgba(255, 255, 255, 0.1);
            color: var(--text-primary);
            transform: scale(1.05);
        }

        /* Enhanced time stamps */
        .timestamp {
            color: var(--text-secondary);
            font-size: 0.75rem;
            opacity: 0.8;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }

        .timestamp::before {
            content: '';
            width: 0.375rem;
            height: 0.375rem;
            border-radius: 50%;
            background: var(--love-pink);
            animation: pulse 2s infinite;
        }

        /* Priority indicators */
        .priority-high::after {
            content: '';
            position: absolute;
            top: 1rem;
            right: 1rem;
            width: 0.75rem;
            height: 0.75rem;
            background: #ef4444;
            border-radius: 50%;
            animation: pulse 1.5s infinite;
        }

        .priority-medium::after {
            content: '';
            position: absolute;
            top: 1rem;
            right: 1rem;
            width: 0.75rem;
            height: 0.75rem;
            background: #f59e0b;
            border-radius: 50%;
        }