* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        body {
            font-family: 'Inter', 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            background: linear-gradient(135deg, #1e3a8a 0%, #3b82f6 100%);
            min-height: 100vh;
            padding: 20px;
        }

        .container {
            max-width: 1400px;
            margin: 0 auto;
        }

        header {
            text-align: center;
            color: white;
            margin-bottom: 40px;
        }

        h1 {
            font-size: 3rem;
            margin-bottom: 10px;
            text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
        }

        .subtitle {
            font-size: 1.2rem;
            opacity: 0.9;
        }

        .controls {
            background: white;
            padding: 30px;
            border-radius: 15px;
            box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
            margin-bottom: 30px;
        }

        .control-row {
            display: flex;
            gap: 20px;
            flex-wrap: wrap;
            align-items: center;
            margin-bottom: 20px;
        }

        .control-group {
            flex: 1;
            min-width: 200px;
        }

        .control-group label {
            display: block;
            margin-bottom: 8px;
            font-weight: 600;
            color: #333;
            font-size: 0.9rem;
        }

        select, input[type="color"] {
            width: 100%;
            padding: 12px;
            border: 2px solid #e5e7eb;
            border-radius: 8px;
            font-size: 1rem;
            cursor: pointer;
            transition: all 0.3s ease;
        }

        select:focus {
            outline: none;
            border-color: #3b82f6;
        }

        input[type="color"] {
            height: 50px;
            cursor: pointer;
        }

        .button-group {
            display: flex;
            gap: 15px;
            flex-wrap: wrap;
        }

        button {
            padding: 12px 30px;
            border: none;
            border-radius: 8px;
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s ease;
            box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
        }

        .generate-btn {
            background: linear-gradient(135deg, #3b82f6 0%, #2563eb 100%);
            color: white;
            flex: 1;
            min-width: 150px;
        }

        .generate-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(59, 130, 246, 0.4);
        }

        .export-btn {
            background: linear-gradient(135deg, #10b981 0%, #059669 100%);
            color: white;
        }

        .export-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(16, 185, 129, 0.4);
        }

        .lock-all-btn {
            background: #6b7280;
            color: white;
        }

        .lock-all-btn:hover {
            background: #4b5563;
        }

        .palette-container {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 20px;
            margin-bottom: 30px;
        }

        .color-card {
            background: white;
            border-radius: 15px;
            overflow: hidden;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
            transition: all 0.3s ease;
            position: relative;
        }

        .color-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 15px 40px rgba(0, 0, 0, 0.3);
        }

        .color-display {
            height: 200px;
            cursor: pointer;
            position: relative;
            transition: all 0.3s ease;
        }

        .color-display:hover {
            opacity: 0.9;
        }

        .lock-icon {
            position: absolute;
            top: 10px;
            right: 10px;
            background: rgba(255, 255, 255, 0.9);
            border: none;
            border-radius: 50%;
            width: 40px;
            height: 40px;
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            font-size: 1.2rem;
            transition: all 0.3s ease;
            z-index: 10;
        }

        .lock-icon:hover {
            background: white;
            transform: scale(1.1);
        }

        .lock-icon.locked {
            background: #fbbf24;
            color: white;
        }

        .color-info {
            padding: 20px;
        }

        .color-name {
            font-size: 1.1rem;
            font-weight: 700;
            color: #1f2937;
            margin-bottom: 15px;
        }

        .color-values {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .color-value {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 8px 12px;
            background: #f3f4f6;
            border-radius: 6px;
            font-family: 'Courier New', monospace;
            font-size: 0.85rem;
            cursor: pointer;
            transition: all 0.2s ease;
        }

        .color-value:hover {
            background: #e5e7eb;
        }

        .copy-icon {
            opacity: 0.5;
            transition: opacity 0.2s;
        }

        .color-value:hover .copy-icon {
            opacity: 1;
        }

        .export-panel {
            background: white;
            padding: 30px;
            border-radius: 15px;
            box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
        }

        .export-panel h2 {
            margin-bottom: 20px;
            color: #1f2937;
        }

        .code-block {
            background: #1f2937;
            color: #10b981;
            padding: 20px;
            border-radius: 10px;
            font-family: 'Courier New', monospace;
            font-size: 0.9rem;
            overflow-x: auto;
            margin-bottom: 15px;
            position: relative;
        }

        .code-block pre {
            margin: 0;
            white-space: pre-wrap;
            word-wrap: break-word;
        }

        .copy-code-btn {
            position: absolute;
            top: 10px;
            right: 10px;
            padding: 6px 12px;
            background: #3b82f6;
            color: white;
            border: none;
            border-radius: 5px;
            cursor: pointer;
            font-size: 0.8rem;
        }

        .copy-code-btn:hover {
            background: #2563eb;
        }

        .toast {
            position: fixed;
            bottom: 30px;
            right: 30px;
            background: #10b981;
            color: white;
            padding: 15px 25px;
            border-radius: 10px;
            box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
            opacity: 0;
            transform: translateY(20px);
            transition: all 0.3s ease;
            pointer-events: none;
            z-index: 1000;
        }

        .toast.show {
            opacity: 1;
            transform: translateY(0);
        }

        .scheme-info {
            background: #eff6ff;
            padding: 15px;
            border-radius: 10px;
            margin-bottom: 20px;
            border-left: 4px solid #3b82f6;
        }

        .scheme-info h3 {
            color: #1e40af;
            margin-bottom: 5px;
            font-size: 1rem;
        }

        .scheme-info p {
            color: #1e3a8a;
            font-size: 0.9rem;
            line-height: 1.5;
        }

        @media (max-width: 768px) {
            h1 {
                font-size: 2rem;
            }

            .subtitle {
                font-size: 1rem;
            }

            .palette-container {
                grid-template-columns: 1fr;
            }

            .control-row {
                flex-direction: column;
            }

            .button-group {
                flex-direction: column;
            }

            button {
                width: 100%;
            }
        }