.alan-hacim-calculator {
    --primary: #1e3a8a;
    --primary-light: #dbeafe;
    --accent: #3b82f6;

    max-width: 800px;
    margin: 2rem auto;
    background: #fff;
    border-radius: 16px;
    padding: 3rem;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.05);
}

.alan-hacim-calculator .calculator-header h2 {
    color: var(--primary);
    font-weight: 800;
}

.alan-hacim-calculator .form-control {
    border: 2px solid #e2e8f0;
    border-radius: 10px;
    font-weight: 600;
}

.alan-hacim-calculator .btn-primary {
    background: var(--primary);
    border: none;
    padding: 1rem;
    font-weight: 700;
    border-radius: 10px;
}

.geom-cards {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
    margin-top: 2rem;
}

.geom-card {
    background: var(--primary-light);
    padding: 2rem;
    border-radius: 16px;
    text-align: center;
    border: 1px solid #bfdbfe;
}

.geom-label {
    font-size: 0.9rem;
    font-weight: 700;
    color: var(--primary);
    text-transform: uppercase;
    margin-bottom: 0.5rem;
}

.geom-val {
    font-size: 2.5rem;
    font-weight: 900;
    color: #1e293b;
}

.geom-unit {
    font-size: 0.85rem;
    color: #64748b;
    margin-top: 0.5rem;
    font-weight: 600;
}

.formula-box {
    background: #f8fafc;
    padding: 1rem;
    border-radius: 8px;
    border-left: 4px solid var(--accent);
    font-size: 0.95rem;
    color: #475569;
}

#dynamic-inputs {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
}

@media (max-width: 640px) {
    .geom-cards {
        grid-template-columns: 1fr;
    }
}