/**
 * Shutter Calculator Styles
 */

.shutter-calculator-page {
    padding: 20px;
    max-width: 1400px;
    margin: 0 auto;
}

.calculator-header {
    text-align: center;
    margin-bottom: 30px;
    padding-bottom: 20px;
    border-bottom: 2px solid #e0e0e0;
}

.calculator-header h1 {
    font-size: 28px;
    color: #333;
    margin-bottom: 10px;
    letter-spacing: 1px;
}

.calculator-header .subtitle {
    color: #666;
    font-size: 14px;
    font-weight: 500;
}

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

/* Section Styles */
.calculator-section {
    background: white;
    border-radius: 8px;
    padding: 25px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.calculator-section h2 {
    font-size: 20px;
    color: #333;
    margin-bottom: 20px;
    padding-bottom: 10px;
    border-bottom: 2px solid #4CAF50;
}

.calculator-section h3 {
    font-size: 16px;
    color: #555;
    margin-bottom: 15px;
    font-weight: 600;
}

/* Input Section */
.input-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin-bottom: 20px;
}

.input-group {
    display: flex;
    flex-direction: column;
}

.input-group label {
    font-weight: 600;
    color: #555;
    margin-bottom: 8px;
    font-size: 14px;
}

.input-group input,
.input-group select {
    padding: 10px 12px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 14px;
    transition: border-color 0.2s, box-shadow 0.2s;
}

.input-group input:focus,
.input-group select:focus {
    outline: none;
    border-color: #4CAF50;
    box-shadow: 0 0 0 3px rgba(76, 175, 80, 0.1);
}

.input-group small {
    margin-top: 5px;
    font-size: 12px;
    color: #999;
}

.checkbox-group label {
    flex-direction: row;
    align-items: center;
    cursor: pointer;
}

.checkbox-group input[type="checkbox"] {
    width: auto;
    margin-right: 8px;
    cursor: pointer;
}

/* Advanced Options */
.advanced-options {
    margin: 20px 0;
    padding: 15px;
    background: #f9f9f9;
    border-radius: 4px;
    border: 1px solid #e0e0e0;
}

.advanced-options summary {
    cursor: pointer;
    font-weight: 600;
    color: #555;
    padding: 10px;
    user-select: none;
    list-style: none;
    display: flex;
    align-items: center;
}

.advanced-options summary::-webkit-details-marker {
    display: none;
}

.advanced-options summary::before {
    content: '▶';
    display: inline-block;
    margin-right: 10px;
    transition: transform 0.2s;
}

.advanced-options[open] summary::before {
    transform: rotate(90deg);
}

.advanced-options summary:hover {
    color: #4CAF50;
}

.advanced-options .input-grid {
    margin-top: 20px;
}

/* Calculate Button */
.btn-calculate {
    width: 100%;
    padding: 15px;
    background: linear-gradient(135deg, #4CAF50 0%, #45a049 100%);
    color: white;
    border: none;
    border-radius: 6px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    transition: transform 0.2s, box-shadow 0.2s;
    margin-top: 20px;
}

.btn-calculate:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(76, 175, 80, 0.3);
}

.btn-calculate:active {
    transform: translateY(0);
}

/* Results Section */
.results-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
}

.result-group {
    background: #f9f9f9;
    border-radius: 6px;
    padding: 20px;
    border: 1px solid #e0e0e0;
}

.result-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 0;
    border-bottom: 1px solid #e0e0e0;
}

.result-item:last-child {
    border-bottom: none;
}

.result-item.highlight {
    background: #fff3cd;
    padding: 12px;
    border-radius: 4px;
    margin: 5px 0;
    border-bottom: none;
}

.result-label {
    font-weight: 600;
    color: #555;
    font-size: 14px;
}

.result-value {
    color: #333;
    font-family: 'Courier New', monospace;
    font-size: 15px;
    font-weight: 600;
    background: white;
    padding: 4px 12px;
    border-radius: 4px;
    border: 1px solid #ddd;
}

.result-item.highlight .result-value {
    background: #fff;
    color: #ff9800;
    border-color: #ff9800;
    font-size: 16px;
}

/* Error Messages */
.error-messages {
    background: #ffebee;
    border: 2px solid #f44336;
    border-radius: 6px;
    padding: 20px;
    margin: 20px 0;
}

.error-messages h3 {
    color: #c62828;
    margin-bottom: 15px;
    font-size: 16px;
}

.error-messages ul {
    margin-left: 20px;
    color: #c62828;
}

.error-messages li {
    margin: 8px 0;
    font-size: 14px;
}

/* Responsive Design */
@media (max-width: 768px) {
    .shutter-calculator-page {
        padding: 15px;
    }

    .calculator-header h1 {
        font-size: 22px;
    }

    .calculator-section {
        padding: 20px;
    }

    .input-grid {
        grid-template-columns: 1fr;
        gap: 15px;
    }

    .results-grid {
        grid-template-columns: 1fr;
    }

    .result-item {
        flex-direction: column;
        align-items: flex-start;
        gap: 8px;
    }

    .result-value {
        width: 100%;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .calculator-header h1 {
        font-size: 20px;
    }

    .calculator-section h2 {
        font-size: 18px;
    }

    .btn-calculate {
        font-size: 14px;
        padding: 12px;
    }
}