:root {
    --primary-color: #6366ff;
    --secondary-color: #ffe054;
    --dark-color: #2d3748;
    --light-color: #f8fafc;
    --success-color: #10b981;
    --border-radius: 10px;
    --box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
    --transition: all 0.3s ease;
}

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

body {
    font-family: 'Poppins', sans-serif;
    background-color: var(--primary-color);
    color: var(--dark-color);
    line-height: 1.6;
    padding: 20px;
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
}

.wrapper {
    background-color: white;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    width: min(900px, 95vw);
    overflow: hidden;
    transition: var(--transition);
}

header {
    background: linear-gradient(135deg, var(--primary-color), #8b5cf6);
    color: white;
    padding: 25px 20px;
    text-align: center;
}

header h1 {
    font-size: 2.2rem;
    margin-bottom: 8px;
    font-weight: 600;
}

header p {
    opacity: 0.9;
    font-weight: 300;
}

.container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
    padding: 30px;
}

.preview-section {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.box-container {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 250px;
    border-radius: var(--border-radius);
    background-color: var(--primary-color);
    transition: var(--transition);
}

.box {
    width: 200px;
    height: 200px;
    background-color: var(--secondary-color);
    transition: var(--transition);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.shape-controls {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 15px;
}

.shape-controls label {
    font-weight: 500;
    margin-bottom: 5px;
    display: block;
}

.shape-controls select, 
.shape-controls input {
    width: 100%;
    padding: 8px 12px;
    border: 1px solid #e2e8f0;
    border-radius: 5px;
    font-family: 'Poppins', sans-serif;
    transition: var(--transition);
}

.shape-controls select:focus, 
.shape-controls input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(99, 102, 255, 0.2);
}

.controls-section {
    display: flex;
    flex-direction: column;
    gap: 25px;
}

.controls {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.slider-container {
    display: grid;
    grid-template-columns: 100px 1fr 50px 40px;
    align-items: center;
    gap: 10px;
}

.slider-container label {
    font-weight: 500;
}

input[type="range"] {
    width: 100%;
    height: 8px;
    border-radius: 5px;
    background: #e2e8f0;
    outline: none;
    -webkit-appearance: none;
}

input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--primary-color);
    cursor: pointer;
    transition: var(--transition);
}

input[type="range"]::-webkit-slider-thumb:hover {
    transform: scale(1.2);
    box-shadow: 0 0 0 5px rgba(99, 102, 255, 0.2);
}

.slider-container span {
    text-align: center;
    font-weight: 500;
}

.unit {
    color: #718096;
}

.presets h3, .code-section h3 {
    margin-bottom: 15px;
    font-weight: 600;
    color: var(--dark-color);
    border-bottom: 1px solid #e2e8f0;
    padding-bottom: 8px;
}

.preset-buttons {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 10px;
}

.preset-btn {
    padding: 10px;
    border: 1px solid #e2e8f0;
    background: white;
    border-radius: 5px;
    cursor: pointer;
    transition: var(--transition);
    font-family: 'Poppins', sans-serif;
    font-weight: 500;
}

.preset-btn:hover {
    background: var(--primary-color);
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 5px 10px rgba(0, 0, 0, 0.1);
}

.code-section {
    background-color: #f8fafc;
    border-radius: var(--border-radius);
    padding: 20px;
}

.code {
    background-color: #2d3748;
    color: #e2e8f0;
    padding: 15px;
    border-radius: 5px;
    font-family: 'Courier New', monospace;
    margin-bottom: 15px;
    overflow-x: auto;
    white-space: nowrap;
}

.code-actions {
    display: flex;
    gap: 10px;
}

.copy-btn, .reset-btn {
    padding: 10px 20px;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    font-family: 'Poppins', sans-serif;
    font-weight: 500;
    transition: var(--transition);
    flex: 1;
}

.copy-btn {
    background-color: var(--primary-color);
    color: white;
}

.copy-btn:hover {
    background-color: #4f46e5;
    transform: translateY(-2px);
    box-shadow: 0 5px 10px rgba(0, 0, 0, 0.1);
}

.reset-btn {
    background-color: #e2e8f0;
    color: var(--dark-color);
}

.reset-btn:hover {
    background-color: #cbd5e0;
    transform: translateY(-2px);
    box-shadow: 0 5px 10px rgba(0, 0, 0, 0.1);
}

footer {
    text-align: center;
    padding: 20px;
    background-color: #f8fafc;
    color: #718096;
    font-size: 0.9rem;
}

/* Responsive design */
@media (max-width: 768px) {
    .container {
        grid-template-columns: 1fr;
        gap: 20px;
        padding: 20px;
    }
    
    .slider-container {
        grid-template-columns: 80px 1fr 40px 30px;
    }
    
    .preset-buttons {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .code-actions {
        flex-direction: column;
    }
}

/* Animation for copied state */
.copied {
    background-color: var(--success-color) !important;
}

/* Animation for box */
@keyframes pulse {
    0% { transform: scale(1); }
    50% { transform: scale(1.05); }
    100% { transform: scale(1); }
}

.pulse {
    animation: pulse 0.5s ease-in-out;
}