/* Base Styles */
.itc-container {
    max-width: 800px;
    margin: 2rem auto;
    padding: 2rem;
    background: #fff;
    border-radius: 10px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.1);
    font-family: 'Segoe UI', sans-serif;
}

/* Regime Tabs */
.regime-tabs {
    display: flex;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.regime-tab {
    flex: 1;
    padding: 1rem;
    background: #f8f9fa;
    border: 2px solid #e0e0e0;
    border-radius: 8px;
    cursor: pointer;
    font-weight: 600;
    color: #666;
    transition: all 0.3s;
}

.regime-tab.active {
    background: #2196F3;
    color: white;
    border-color: #2196F3;
}

/* Input Section */
.input-group {
    margin-bottom: 1.5rem;
}

.input-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: #333;
}

input[type="number"] {
    width: 100%;
    padding: 0.8rem;
    border: 1px solid #ddd;
    border-radius: 6px;
    font-size: 16px;
}

small {
    display: block;
    color: #666;
    font-size: 0.85rem;
    margin-top: 0.3rem;
}

/* Calculate Button */
#calculate-tax {
    width: 100%;
    padding: 1rem;
    background: #4CAF50;
    color: white;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-size: 1.1rem;
    margin: 1.5rem 0;
    transition: background 0.3s;
}

#calculate-tax:hover {
    background: #45a049;
}

/* Results Section */
.results-section {
    padding: 1.5rem;
    background: #f5f5f5;
    border-radius: 8px;
    margin-top: 1.5rem;
}

.result-row {
    display: flex;
    justify-content: space-between;
    padding: 0.8rem 0;
    border-bottom: 1px solid #eee;
}

.result-row.total {
    border-top: 2px solid #ddd;
    font-weight: 700;
    color: #2c3e50;
}

/* Slabs Info */
.slabs-info {
    margin-top: 2rem;
    padding: 1rem;
    background: #f8f9fa;
    border-radius: 8px;
}

.slabs-info h4 {
    color: #2196F3;
    margin-bottom: 0.5rem;
}