/* List to Array Converter Tool Styles */

.tool-main {
    display: flex;
    flex-direction: column;
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
}

/* Section Styles */
.input-section,
.config-section,
.output-section,
.stats-section,
.examples-section {
    background: var(--card-bg, #ffffff);
    border-radius: 12px;
    padding: 1.5rem;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    border: 1px solid var(--border-color, #e1e5e9);
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid var(--primary-color, #007bff);
}

.section-header h2 {
    margin: 0;
    color: var(--text-primary, #333);
    font-size: 1.25rem;
    font-weight: 600;
}

/* Input Area */
.input-area {
    position: relative;
}

#listInput {
    width: 100%;
    min-height: 200px;
    padding: 1rem;
    border: 2px solid var(--border-color, #e1e5e9);
    border-radius: 8px;
    font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
    font-size: 14px;
    line-height: 1.5;
    resize: vertical;
    background: var(--input-bg, #fafafa);
    transition: border-color 0.3s ease;
}

#listInput:focus {
    outline: none;
    border-color: var(--primary-color, #007bff);
    box-shadow: 0 0 0 3px rgba(0, 123, 255, 0.1);
}

/* Configuration Grid */
.config-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.config-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.config-group label {
    font-weight: 500;
    color: var(--text-primary, #333);
    font-size: 0.9rem;
}

.config-group select,
.config-group input[type="text"] {
    padding: 0.75rem;
    border: 2px solid var(--border-color, #e1e5e9);
    border-radius: 6px;
    font-size: 14px;
    background: var(--input-bg, #ffffff);
    transition: border-color 0.3s ease;
}

.config-group select:focus,
.config-group input[type="text"]:focus {
    outline: none;
    border-color: var(--primary-color, #007bff);
    box-shadow: 0 0 0 3px rgba(0, 123, 255, 0.1);
}

.checkbox-group {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.checkbox-group input[type="checkbox"] {
    width: 18px;
    height: 18px;
    accent-color: var(--primary-color, #007bff);
}

.checkbox-group label {
    margin: 0;
    cursor: pointer;
    user-select: none;
}

/* Controls */
.input-controls,
.output-controls {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.convert-controls {
    display: flex;
    justify-content: center;
    margin-top: 1rem;
}

/* Buttons */
.btn {
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 6px;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.btn-primary {
    background: var(--primary-color, #007bff);
    color: white;
}

.btn-primary:hover {
    background: var(--primary-hover, #0056b3);
    transform: translateY(-1px);
}

.btn-secondary {
    background: var(--secondary-color, #6c757d);
    color: white;
}

.btn-secondary:hover {
    background: var(--secondary-hover, #545b62);
}

.btn-outline {
    background: transparent;
    color: var(--primary-color, #007bff);
    border: 2px solid var(--primary-color, #007bff);
}

.btn-outline:hover {
    background: var(--primary-color, #007bff);
    color: white;
}

/* Output Area */
.output-area {
    position: relative;
}

#arrayOutput {
    width: 100%;
    min-height: 200px;
    padding: 1rem;
    border: 2px solid var(--border-color, #e1e5e9);
    border-radius: 8px;
    font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
    font-size: 14px;
    line-height: 1.5;
    background: var(--code-bg, #f8f9fa);
    color: var(--code-text, #333);
    overflow-x: auto;
    white-space: pre;
    margin: 0;
}

/* Statistics */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
}

.stat-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.75rem;
    background: var(--stat-bg, #f8f9fa);
    border-radius: 6px;
    border-left: 4px solid var(--primary-color, #007bff);
}

.stat-label {
    font-weight: 500;
    color: var(--text-secondary, #666);
}

.stat-value {
    font-weight: 600;
    color: var(--text-primary, #333);
    font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
}

/* Examples */
.examples-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1rem;
}

.example-item {
    padding: 1rem;
    background: var(--example-bg, #f8f9fa);
    border-radius: 8px;
    border: 1px solid var(--border-color, #e1e5e9);
    text-align: center;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.example-item:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.example-item h3 {
    margin: 0 0 0.5rem 0;
    color: var(--text-primary, #333);
    font-size: 1rem;
}

.example-item p {
    margin: 0 0 1rem 0;
    color: var(--text-secondary, #666);
    font-size: 0.9rem;
    line-height: 1.4;
}

/* Loading State */
.loading {
    opacity: 0.6;
    pointer-events: none;
}

.loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 20px;
    height: 20px;
    margin: -10px 0 0 -10px;
    border: 2px solid var(--primary-color, #007bff);
    border-top: 2px solid transparent;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Copy Feedback */
.copy-success {
    background: var(--success-color, #28a745) !important;
    color: white !important;
}

/* Responsive Design */
@media (max-width: 768px) {
    .tool-main {
        padding: 1rem;
        gap: 1.5rem;
    }
    
    .section-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 1rem;
    }
    
    .input-controls,
    .output-controls {
        width: 100%;
        justify-content: flex-start;
    }
    
    .config-grid {
        grid-template-columns: 1fr;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .examples-grid {
        grid-template-columns: 1fr;
    }
    
    #listInput,
    #arrayOutput {
        min-height: 150px;
        font-size: 13px;
    }
}

@media (max-width: 480px) {
    .tool-main {
        padding: 0.5rem;
    }
    
    .input-section,
    .config-section,
    .output-section,
    .stats-section,
    .examples-section {
        padding: 1rem;
    }
    
    .btn {
        padding: 0.6rem 1rem;
        font-size: 13px;
    }
}

/* Dark Mode Support */
@media (prefers-color-scheme: dark) {
    :root {
        --card-bg: #2d3748;
        --input-bg: #4a5568;
        --code-bg: #1a202c;
        --code-text: #e2e8f0;
        --text-primary: #e2e8f0;
        --text-secondary: #a0aec0;
        --border-color: #4a5568;
        --stat-bg: #4a5568;
        --example-bg: #4a5568;
    }
}