:root {
            --bg-color: #000000;
            --card-bg: #050505;
            --card-border: #1a1a1a;
            --primary: #7c3aed;
            --primary-light: #a78bfa;
            --primary-glow: rgba(124, 58, 237, 0.15);
            --text-main: #a1a1aa;
            --text-light: #f4f4f5;
            --text-muted: #71717a;
            --completed: #059669;
            --danger: #ef4444;
        }

        * {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
            font-family: 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
        }

        body {
            background-color: var(--bg-color);
            color: var(--text-main);
            padding: 2rem;
            min-height: 100vh;
        }

        header {
            text-align: center;
            margin-bottom: 2rem;
            margin-top: 1rem;
        }

        h1 {
            color: var(--text-light);
            font-size: 2.5rem;
            margin-bottom: 0.5rem;
            letter-spacing: -0.5px;
        }

        /* Controls Section */
        .controls-container {
            display: flex;
            flex-wrap: wrap;
            gap: 1rem;
            justify-content: center;
            align-items: center;
            margin-bottom: 2rem;
            max-width: 1200px;
            margin-left: auto;
            margin-right: auto;
        }

        .search-bar {
            background-color: var(--card-bg);
            border: 1px solid var(--card-border);
            color: var(--text-light);
            padding: 0.8rem 1.5rem;
            border-radius: 30px;
            width: 100%;
            max-width: 300px;
            font-size: 0.95rem;
            transition: all 0.3s ease;
            outline: none;
        }

        .search-bar:focus {
            border-color: var(--primary);
            box-shadow: 0 0 15px var(--primary-glow);
        }

        /* Custom Dropdown Styles */
        .custom-select-wrapper {
            position: relative;
            width: 100%;
            max-width: 180px;
            user-select: none;
        }

        .custom-select {
            background-color: var(--card-bg);
            border: 1px solid var(--card-border);
            color: var(--text-light);
            padding: 0.8rem 2.5rem 0.8rem 1.5rem;
            border-radius: 30px;
            font-size: 0.95rem;
            cursor: pointer;
            position: relative;
            transition: all 0.3s ease;
        }

        .custom-select:hover, .custom-select.active {
            border-color: var(--primary);
            box-shadow: 0 0 15px var(--primary-glow);
        }

        .custom-select::after {
            content: '';
            position: absolute;
            right: 1.2rem;
            top: 50%;
            transform: translateY(-50%);
            width: 12px;
            height: 12px;
            background-image: url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23a1a1aa' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3e%3cpolyline points='6 9 12 15 18 9'%3e%3c/polyline%3e%3c/svg%3e");
            background-repeat: no-repeat;
            background-size: contain;
            transition: transform 0.3s ease;
        }

        .custom-select.active::after {
            transform: translateY(-50%) rotate(180deg);
        }

        .custom-options {
            position: absolute;
            top: calc(100% + 10px);
            left: 0;
            right: 0;
            background-color: var(--card-bg);
            border: 1px solid var(--card-border);
            border-radius: 12px;
            overflow: hidden;
            opacity: 0;
            pointer-events: none;
            transform: translateY(-10px);
            transition: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
            z-index: 100;
            box-shadow: 0 10px 30px rgba(0,0,0,0.8), 0 0 20px var(--primary-glow);
        }

        .custom-options.open {
            opacity: 1;
            pointer-events: auto;
            transform: translateY(0);
        }

        .custom-option {
            padding: 0.8rem 1.5rem;
            color: var(--text-main);
            cursor: pointer;
            transition: all 0.2s ease;
            font-size: 0.95rem;
        }

        .custom-option:hover {
            background-color: var(--primary-glow);
            color: var(--primary-light);
        }

        .custom-option.selected {
            color: var(--primary-light);
            font-weight: 600;
            background-color: rgba(124, 58, 237, 0.05);
        }

        .action-btn {
            background-color: var(--primary-glow);
            color: var(--primary-light);
            border: 1px solid var(--primary);
            padding: 0.8rem 1.5rem;
            border-radius: 30px;
            cursor: pointer;
            font-size: 0.95rem;
            font-weight: 600;
            display: flex;
            align-items: center;
            gap: 0.5rem;
            transition: all 0.2s ease;
        }

        .action-btn:hover {
            background-color: var(--primary);
            color: #ffffff;
            box-shadow: 0 0 15px var(--primary-glow);
        }

        /* Navbar Styles */
        .navbar {
            display: flex;
            flex-wrap: wrap;
            gap: 0.8rem;
            justify-content: center;
            margin-bottom: 3.5rem;
        }

        .nav-btn {
            background-color: transparent;
            color: var(--text-main);
            border: 1px solid var(--card-border);
            padding: 0.6rem 1.5rem;
            border-radius: 30px;
            cursor: pointer;
            font-size: 0.9rem;
            font-weight: 500;
            text-transform: capitalize;
            transition: all 0.2s ease;
        }

        .nav-btn:hover {
            color: var(--text-light);
            border-color: #3f3f46;
        }

        .nav-btn.active {
            background-color: var(--primary-glow);
            color: var(--primary-light);
            border-color: var(--primary);
            box-shadow: 0 0 15px var(--primary-glow);
        }

        /* Grid & Cards */
        .grid-container {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
            gap: 1.5rem;
            max-width: 1200px;
            margin: 0 auto;
        }

        .card {
            background-color: var(--card-bg);
            border: 1px solid var(--card-border);
            border-radius: 10px;
            padding: 1.5rem;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
            transition: all 0.3s ease;
            position: relative;
        }

        .card:hover {
            border-color: #3b2856;
            background-color: #0a0a0c;
            transform: translateY(-3px);
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5), 0 0 20px var(--primary-glow);
        }

        .card-actions {
            position: absolute;
            top: 1.2rem;
            right: 1.2rem;
            display: flex;
            gap: 0.5rem;
            z-index: 2;
        }

        .icon-btn {
            background: transparent;
            border: none;
            color: var(--text-muted);
            cursor: pointer;
            padding: 0.2rem;
            border-radius: 4px;
            transition: all 0.2s ease;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .icon-btn:hover {
            color: var(--text-light);
            background-color: rgba(255,255,255,0.05);
        }

        .icon-btn.complete-toggle:hover { color: var(--completed); }
        .icon-btn.delete-toggle:hover { color: var(--danger); }
        .icon-btn.link-out:hover { color: var(--primary-light); }

        .card-title {
            color: var(--text-light);
            font-size: 1.15rem;
            margin-bottom: 1rem;
            line-height: 1.4;
            padding-right: 80px;
            font-weight: 600;
        }

        .card-category {
            font-size: 0.75rem;
            text-transform: uppercase;
            letter-spacing: 1.5px;
            color: var(--text-muted);
            margin-bottom: 0.8rem;
            font-weight: 600;
        }

        .badge {
            display: inline-block;
            background-color: transparent;
            color: var(--completed);
            border: 1px solid rgba(5, 150, 105, 0.3);
            font-size: 0.7rem;
            font-weight: 700;
            padding: 0.2rem 0.6rem;
            border-radius: 6px;
            text-transform: uppercase;
            letter-spacing: 0.5px;
            margin-bottom: 1rem;
        }

        .copy-btn {
            background-color: transparent;
            color: var(--text-main);
            border: 1px solid var(--card-border);
            padding: 0.7rem 1rem;
            border-radius: 6px;
            cursor: pointer;
            font-size: 0.9rem;
            font-weight: 500;
            transition: all 0.2s ease;
            width: 100%;
            display: flex;
            justify-content: center;
            align-items: center;
            gap: 0.5rem;
        }

        .copy-btn:hover {
            background-color: var(--primary-glow);
            color: var(--primary-light);
            border-color: var(--primary);
        }

        /* Modal Styles */
        .modal-overlay {
            position: fixed;
            top: 0; left: 0; right: 0; bottom: 0;
            background-color: rgba(0, 0, 0, 0.8);
            backdrop-filter: blur(4px);
            display: flex;
            align-items: center;
            justify-content: center;
            z-index: 2000;
            opacity: 0;
            pointer-events: none;
            transition: opacity 0.3s ease;
        }

        .modal-overlay.show {
            opacity: 1;
            pointer-events: auto;
        }

        .modal-content {
            background-color: var(--card-bg);
            border: 1px solid var(--primary);
            border-radius: 12px;
            padding: 2rem;
            width: 90%;
            max-width: 450px;
            box-shadow: 0 15px 40px rgba(0,0,0,0.8), 0 0 30px var(--primary-glow);
            transform: translateY(-20px);
            transition: transform 0.3s ease;
        }

        .modal-overlay.show .modal-content {
            transform: translateY(0);
        }

        .modal-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 1.5rem;
        }

        .modal-header h2 {
            color: var(--text-light);
            font-size: 1.5rem;
        }

        .close-btn {
            background: transparent;
            border: none;
            color: var(--text-muted);
            cursor: pointer;
            padding: 0.5rem;
        }

        .close-btn:hover {
            color: var(--text-light);
        }

        .form-group {
            margin-bottom: 1.2rem;
        }

        .form-group label {
            display: block;
            margin-bottom: 0.5rem;
            font-size: 0.9rem;
            color: var(--text-light);
        }

        .form-group input {
            width: 100%;
            background-color: #000;
            border: 1px solid var(--card-border);
            color: var(--text-light);
            padding: 0.8rem;
            border-radius: 6px;
            font-size: 0.95rem;
            outline: none;
            transition: border-color 0.2s ease;
        }

        .form-group input:focus {
            border-color: var(--primary);
        }

        .submit-btn {
            width: 100%;
            background-color: var(--primary);
            color: #fff;
            border: none;
            padding: 0.8rem;
            border-radius: 6px;
            font-size: 1rem;
            font-weight: bold;
            cursor: pointer;
            margin-top: 1rem;
            transition: background-color 0.2s ease;
        }

        .submit-btn:hover {
            background-color: #6d28d9;
        }

        /* Toast Notification */
        .toast {
            position: fixed;
            bottom: -50px;
            left: 50%;
            transform: translateX(-50%);
            background-color: var(--card-bg);
            color: var(--text-light);
            border: 1px solid var(--primary);
            padding: 0.8rem 1.5rem;
            border-radius: 8px;
            font-size: 0.95rem;
            font-weight: 500;
            transition: bottom 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
            box-shadow: 0 10px 30px rgba(0,0,0,0.8), 0 0 20px var(--primary-glow);
            z-index: 3000;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }

        .toast.show { bottom: 40px; }

        @media (max-width: 600px) {
            body { padding: 1rem; }
            .grid-container { grid-template-columns: 1fr; }
            .custom-select-wrapper { max-width: 100%; }
        }