:root {
            --primary-dark: #0a192f;
            --primary: #112240;
            --primary-light: #233554;
            --accent: #64ffda;
            --text-primary: #e6f1ff;
            --text-secondary: #8892b0;
            --danger: #ff6b6b;
            --success: #64ffda;
            --warning: #fca311;
        }

        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Courier New', monospace;
        }

        body {
            background-color: var(--primary-dark);
            color: var(--text-primary);
            min-height: 100vh;
            padding: 20px;
            position: relative;
            overflow-x: hidden;
        }

        /* Grid background */
        .grid-bg {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: 
                linear-gradient(rgba(18, 40, 76, 0.5) 1px, transparent 1px),
                linear-gradient(90deg, rgba(18, 40, 76, 0.5) 1px, transparent 1px);
            background-size: 30px 30px;
            z-index: -1;
            pointer-events: none;
        }

        .grid-overlay {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: radial-gradient(circle at 20% 30%, rgba(100, 255, 218, 0.1) 0%, transparent 40%),
                       radial-gradient(circle at 80% 70%, rgba(100, 255, 218, 0.1) 0%, transparent 40%);
            z-index: -1;
            pointer-events: none;
        }

        .terminal-line {
            position: fixed;
            bottom: 0;
            left: 0;
            width: 100%;
            height: 2px;
            background: linear-gradient(90deg, transparent, var(--accent), transparent);
            box-shadow: 0 0 10px var(--accent);
            z-index: 100;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 20px;
        }

        header {
            text-align: center;
            margin-bottom: 30px;
            position: relative;
            padding: 20px;
            border-bottom: 1px solid rgba(100, 255, 218, 0.2);
        }

        h1 {
            font-size: 2.5rem;
            margin-bottom: 10px;
            text-shadow: 0 0 10px rgba(100, 255, 218, 0.5);
            background: linear-gradient(90deg, var(--text-primary), var(--accent));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            position: relative;
            display: inline-block;
        }

        h1::after {
            content: "_";
            animation: blink 1s step-end infinite;
            color: var(--accent);
            position: absolute;
            right: -15px;
        }

        @keyframes blink {
            0%, 100% { opacity: 1; }
            50% { opacity: 0; }
        }

        .subtitle {
            color: var(--text-secondary);
            font-size: 1rem;
            margin-bottom: 20px;
        }

        .stats-bar {
            display: flex;
            justify-content: space-between;
            background: rgba(17, 34, 64, 0.8);
            padding: 15px;
            border-radius: 5px;
            margin-bottom: 30px;
            border: 1px solid rgba(100, 255, 218, 0.2);
            box-shadow: 0 0 15px rgba(0, 0, 0, 0.2);
            backdrop-filter: blur(5px);
        }

        .stat {
            text-align: center;
            flex: 1;
            padding: 0 10px;
        }

        .stat-value {
            font-size: 1.8rem;
            font-weight: bold;
            color: var(--accent);
            margin-bottom: 5px;
        }

        .stat-label {
            font-size: 0.9rem;
            color: var(--text-secondary);
        }

        .controls {
            display: flex;
            gap: 10px;
            margin-bottom: 20px;
            flex-wrap: wrap;
        }

        .btn {
            background: rgba(17, 34, 64, 0.8);
            color: var(--text-primary);
            border: 1px solid rgba(100, 255, 218, 0.3);
            padding: 10px 15px;
            border-radius: 4px;
            cursor: pointer;
            transition: all 0.3s ease;
            display: flex;
            align-items: center;
            gap: 8px;
            backdrop-filter: blur(5px);
        }

        .btn:hover {
            background: rgba(100, 255, 218, 0.1);
            border-color: var(--accent);
            box-shadow: 0 0 10px rgba(100, 255, 218, 0.3);
        }

        .btn i {
            color: var(--accent);
        }

        .search-box {
            flex: 1;
            min-width: 200px;
            position: relative;
        }

        .search-box input {
            width: 100%;
            background: rgba(17, 34, 64, 0.8);
            border: 1px solid rgba(100, 255, 218, 0.3);
            padding: 10px 15px 10px 40px;
            border-radius: 4px;
            color: var(--text-primary);
            backdrop-filter: blur(5px);
        }

        .search-box i {
            position: absolute;
            left: 15px;
            top: 50%;
            transform: translateY(-50%);
            color: var(--text-secondary);
        }

        .category {
            background: rgba(17, 34, 64, 0.6);
            border-radius: 5px;
            margin-bottom: 15px;
            overflow: hidden;
            border: 1px solid rgba(100, 255, 218, 0.1);
            transition: all 0.3s ease;
            backdrop-filter: blur(5px);
        }

        .category:hover {
            border-color: rgba(100, 255, 218, 0.3);
            box-shadow: 0 0 15px rgba(100, 255, 218, 0.1);
        }

        .category-header {
            padding: 15px 20px;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            background: linear-gradient(90deg, rgba(10, 25, 47, 0.7), rgba(17, 34, 64, 0.7));
        }

        .category-title {
            font-weight: bold;
            font-size: 1.1rem;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .category-title i {
            color: var(--accent);
            transition: transform 0.3s ease;
        }

        .category.collapsed .category-title i {
            transform: rotate(-90deg);
        }

        .category-progress {
            width: 120px;
            height: 6px;
            background: rgba(136, 146, 176, 0.2);
            border-radius: 3px;
            overflow: hidden;
        }

        .category-progress-bar {
            height: 100%;
            background: var(--accent);
            border-radius: 3px;
            width: 0%;
            transition: width 0.5s ease;
        }

        .checklist {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.5s ease;
        }

        .category:not(.collapsed) .checklist {
            max-height: 2000px;
        }

        .checklist-item {
            padding: 12px 20px;
            border-top: 1px solid rgba(136, 146, 176, 0.1);
            display: flex;
            align-items: center;
            transition: all 0.3s ease;
        }

        .checklist-item:hover {
            background: rgba(100, 255, 218, 0.05);
        }

        .checklist-item input[type="checkbox"] {
            appearance: none;
            -webkit-appearance: none;
            width: 20px;
            height: 20px;
            border: 1px solid var(--text-secondary);
            border-radius: 3px;
            margin-right: 15px;
            position: relative;
            cursor: pointer;
            transition: all 0.3s ease;
        }

        .checklist-item input[type="checkbox"]:checked {
            background: var(--accent);
            border-color: var(--accent);
        }

        .checklist-item input[type="checkbox"]:checked::after {
            content: "✓";
            position: absolute;
            color: var(--primary-dark);
            font-size: 14px;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            font-weight: bold;
        }

        .checklist-item label {
            flex: 1;
            cursor: pointer;
            user-select: none;
        }

        .checklist-item input[type="checkbox"]:checked + label {
            color: var(--text-secondary);
            text-decoration: line-through;
        }

        .export-modal {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(10, 25, 47, 0.9);
            z-index: 1000;
            justify-content: center;
            align-items: center;
        }

        .export-modal-content {
            background: var(--primary);
            width: 90%;
            max-width: 600px;
            border-radius: 5px;
            padding: 20px;
            border: 1px solid var(--accent);
            box-shadow: 0 0 30px rgba(100, 255, 218, 0.2);
            backdrop-filter: blur(10px);
        }

        .export-modal-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 20px;
            padding-bottom: 10px;
            border-bottom: 1px solid rgba(100, 255, 218, 0.2);
        }

        .export-options {
            display: flex;
            flex-direction: column;
            gap: 10px;
            margin-bottom: 20px;
        }

        .export-option {
            padding: 10px;
            background: rgba(10, 25, 47, 0.5);
            border-radius: 4px;
            cursor: pointer;
            transition: all 0.3s ease;
        }

        .export-option:hover {
            background: rgba(100, 255, 218, 0.1);
        }

        .export-buttons {
            display: flex;
            justify-content: flex-end;
            gap: 10px;
        }

        .hidden {
            display: none;
        }

        .no-results {
            text-align: center;
            padding: 30px;
            color: var(--text-secondary);
        }

        footer {
            text-align: center;
            margin-top: 40px;
            padding: 20px;
            color: var(--text-secondary);
            font-size: 0.9rem;
            border-top: 1px solid rgba(100, 255, 218, 0.2);
        }

        @media (max-width: 768px) {
            .stats-bar {
                flex-direction: column;
                gap: 15px;
            }
            
            .controls {
                flex-direction: column;
            }
            
            .search-box {
                width: 100%;
            }
        }

        .glow {
            animation: glow 2s infinite alternate;
        }

        @keyframes glow {
            from {
                box-shadow: 0 0 5px rgba(100, 255, 218, 0.5);
            }
            to {
                box-shadow: 0 0 20px rgba(100, 255, 218, 0.8);
            }
        }