/* GST Calculator - Main Styles */
.gst-calculator-wrapper {
    max-width: 600px;
    margin: 0 auto;
    padding: 25px;
    background: #ffffff;
    border-radius: 12px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

.gst-calculator-header {
    text-align: center;
    margin-bottom: 25px;
    padding-bottom: 15px;
    border-bottom: 1px solid #eee;
}

.gst-calculator-header h2 {
    color: #2c3e50;
    margin-bottom: 8px;
    font-size: 28px;
}

.gst-calculator-header p {
    color: #7f8c8d;
    font-size: 16px;
}

.gst-calculator-header i {
    margin-right: 10px;
    color: #069e2d;
}

.gst-calculator-form {
    margin-bottom: 20px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: #34495e;
    font-size: 16px;
}

.form-group label i {
    margin-right: 8px;
    color: #3498db;
    width: 20px;
    text-align: center;
}

.form-control {
    width: 100%;
    padding: 12px 15px;
    border: 2px solid #e0e0e0;
    border-radius: 8px;
    font-size: 16px;
    transition: all 0.3s ease;
    box-sizing: border-box;
}

.form-control:focus {
    border-color: #3498db;
    outline: none;
    box-shadow: 0 0 0 3px rgba(52, 152, 219, 0.2);
}

.calculate-btn {
    width: 100%;
    padding: 14px;
    background: #069e2d;
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 18px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    margin-top: 10px;
}

.calculate-btn:hover {
    background: #047a24;
    transform: translateY(-2px);
}

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

.calculate-btn i {
    margin-right: 10px;
}

.loading-spinner {
    text-align: center;
    margin: 20px 0;
    color: #069e2d;
    font-size: 16px;
}

.gst-result {
    background: #f8f9fa;
    padding: 20px;
    border-radius: 8px;
    margin-top: 20px;
    animation: fadeIn 0.5s ease;
}

.gst-result h3 {
    text-align: center;
    margin-bottom: 20px;
    color: #2c3e50;
    padding-bottom: 15px;
    border-bottom: 1px solid #eee;
}

.gst-result h3 i {
    margin-right: 10px;
    color: #069e2d;
}

.result-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 12px;
}

.result-item {
    display: flex;
    justify-content: space-between;
    padding: 12px 15px;
    background: white;
    border-radius: 6px;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.05);
}

.result-item.highlight {
    background: #e8f5e9;
    font-weight: bold;
}

.result-item.breakdown {
    background: #f1f8fe;
}

.result-label {
    color: #7f8c8d;
}

.result-value {
    font-weight: 600;
    color: #2c3e50;
}

/* Responsive Design */
@media (max-width: 768px) {
    .gst-calculator-wrapper {
        padding: 20px;
    }
}

@media (max-width: 480px) {
    .gst-calculator-header h2 {
        font-size: 24px;
    }
    
    .form-control, .calculate-btn {
        padding: 10px 12px;
    }
}

/* Animations */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}