/* Unit Converter Styles */
.converter-tabs {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
    border-bottom: 2px solid var(--border);
    padding-bottom: 0.5rem;
}

.tab {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1rem;
    background: var(--light-gray);
    border-radius: var(--radius);
    cursor: pointer;
    transition: var(--transition);
    border: 2px solid transparent;
    font-size: 0.875rem;
}

.tab:hover {
    background: #e0e7ff;
}

.tab.active {
    background: var(--primary);
    color: white;
    border-color: var(--primary);
}

.tab i {
    font-size: 1rem;
}

.converter-form {
    display: none;
}

.converter-form.active-form {
    display: block;
}

.converter-inputs {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.converter-inputs .form-group {
    margin-bottom: 0;
}

.converter-inputs input,
.converter-inputs select {
    width: 100%;
    padding: 0.875rem;
    border: 2px solid var(--border);
    border-radius: var(--radius);
    font-size: 1rem;
}

.calc-swap {
    background-color: var(--accent);
    color: white;
    padding: 1rem 2rem;
    border: none;
    border-radius: var(--radius);
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}

.calc-swap:hover {
    background-color: #0da271;
    transform: rotate(180deg);
}

.calculator-buttons {
    display: flex;
    gap: 1rem;
    margin-top: 2rem;
}

/* Results styling */
.conversion-details {
    margin-top: 1.5rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--border);
}

.formula {
    background: var(--light-gray);
    padding: 1rem;
    border-radius: var(--radius);
    font-family: 'Courier New', monospace;
    margin: 1rem 0;
    border-left: 4px solid var(--primary);
}

.common-conversions {
    margin-top: 1.5rem;
}

.common-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 0.75rem;
    margin-top: 1rem;
}

.common-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.75rem;
    background: white;
    border-radius: var(--radius);
    border: 1px solid var(--border);
    font-size: 0.875rem;
}

.common-arrow {
    color: var(--gray);
    font-weight: 600;
}

.common-to {
    font-weight: 600;
    color: var(--primary);
}

/* Quick conversions */
.quick-conversions {
    margin-top: 2rem;
    padding: 1.5rem;
    background: #f8fafc;
    border-radius: var(--radius);
    border: 1px solid var(--border);
}

.quick-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 0.75rem;
    margin-top: 1rem;
}

.quick-btn {
    padding: 0.75rem;
    background: white;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    cursor: pointer;
    transition: var(--transition);
    font-size: 0.875rem;
    text-align: center;
}

.quick-btn:hover {
    background: var(--primary);
    color: white;
    transform: translateY(-2px);
    border-color: var(--primary);
}

/* Responsive */
@media (max-width: 768px) {
    .converter-tabs {
        flex-direction: column;
    }
    
    .converter-inputs {
        grid-template-columns: 1fr;
    }
    
    .calculator-buttons {
        flex-direction: column;
    }
    
    .quick-grid {
        grid-template-columns: 1fr;
    }
    
    .common-grid {
        grid-template-columns: 1fr;
    }
}