/* Subnetting Pro Calculator Styles */

.subnetting-calculator-container {
    max-width: 1400px;
    margin: 2rem auto;
    padding: 0 1rem;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
}

.calculator-header {
    text-align: center;
    margin-bottom: 3rem;
    padding: 2rem 0;
    border-bottom: 2px solid #e0e0e0;
}

.calculator-header h1 {
    font-size: 2.5rem;
    color: #333;
    margin: 0 0 0.5rem 0;
}

.calculator-header p {
    color: #666;
    font-size: 1.1rem;
    margin: 0;
}

.calculator-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    margin-bottom: 2rem;
}

@media (max-width: 768px) {
    .calculator-content {
        grid-template-columns: 1fr;
    }
}

.calculator-input-group {
    background: #f9f9f9;
    padding: 1.5rem;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.calculator-input-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: #333;
    font-size: 0.95rem;
}

.calculator-input-group input,
.calculator-input-group select {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 1rem;
    margin-bottom: 1rem;
    box-sizing: border-box;
}

.calculator-input-group input:focus,
.calculator-input-group select:focus {
    outline: none;
    border-color: #0066cc;
    box-shadow: 0 0 0 3px rgba(0, 102, 204, 0.1);
}

.btn-calculate {
    width: 100%;
    padding: 0.75rem;
    background-color: #0066cc;
    color: white;
    border: none;
    border-radius: 4px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: background-color 0.3s;
}

.btn-calculate:hover {
    background-color: #0052a3;
}

.btn-calculate:disabled {
    background-color: #ccc;
    cursor: not-allowed;
}

.results-container {
    background: white;
    padding: 1.5rem;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

.results-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.result-card {
    background: linear-gradient(135deg, #f5f5f5 0%, #ffffff 100%);
    padding: 1rem;
    border-radius: 6px;
    border-left: 4px solid #0066cc;
}

.result-card label {
    display: block;
    font-size: 0.85rem;
    color: #666;
    margin-bottom: 0.3rem;
    font-weight: 500;
}

.result-card .value {
    font-size: 1.5rem;
    font-weight: 700;
    color: #333;
    word-break: break-all;
    font-family: 'Courier New', monospace;
}

.binary-analysis {
    margin-top: 2rem;
    padding-top: 2rem;
    border-top: 1px solid #e0e0e0;
}

.binary-analysis h3 {
    color: #333;
    margin-bottom: 1rem;
}

.binary-table {
    width: 100%;
    border-collapse: collapse;
    overflow-x: auto;
    font-family: 'Courier New', monospace;
    font-size: 0.9rem;
}

.binary-table thead th {
    background-color: #f0f0f0;
    padding: 0.5rem;
    text-align: center;
    border-bottom: 2px solid #ddd;
    color: #666;
}

.binary-table tbody td {
    padding: 0.5rem;
    text-align: center;
    border-bottom: 1px solid #eee;
}

.binary-table tbody tr:hover {
    background-color: #f9f9f9;
}

.binary-one {
    background-color: #e3f2fd;
    color: #1976d2;
    font-weight: 700;
}

.binary-zero {
    background-color: #f5f5f5;
    color: #999;
}

.loading {
    text-align: center;
    padding: 2rem;
    color: #666;
}

.spinner {
    border: 4px solid #f3f3f3;
    border-top: 4px solid #0066cc;
    border-radius: 50%;
    width: 40px;
    height: 40px;
    animation: spin 1s linear infinite;
    margin: 0 auto 1rem;
}

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

.error {
    background-color: #ffebee;
    color: #c62828;
    padding: 1rem;
    border-radius: 4px;
    border-left: 4px solid #c62828;
    margin-bottom: 1rem;
}

.success {
    background-color: #e8f5e9;
    color: #2e7d32;
    padding: 1rem;
    border-radius: 4px;
    border-left: 4px solid #2e7d32;
    margin-bottom: 1rem;
}

@media print {
    .btn-calculate {
        display: none;
    }
    
    .results-container {
        box-shadow: none;
        border: 1px solid #ddd;
    }
}