.home-banner
{
    background: url('../textures/home-bg.png') center/cover no-repeat;
}
.calculator-container
{
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2.5rem;
    margin: 2rem 0;
}
.calculator-form
{
    background: #f8f9fa;
    border-radius: 8px;
    padding: 2rem;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}
.form-group
{
    margin-bottom: 1.5rem;
}
.form-group label
{
    display: block;
    margin-bottom: 0.5rem;
    color: #2c3e50;
    font-weight: 500;
}
.form-input
{
    width: 100%;
    padding: 0.8rem 1rem;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 1rem;
    transition: border-color 0.3s ease;
}
.form-input:focus
{
    outline: none;
    border-color: #3498db;
    box-shadow: 0 0 0 2px rgba(52, 152, 219, 0.2);
}
.input-hint
{
    margin-top: 0.3rem;
    font-size: 0.85rem;
    color: #7f8c8d;
}
.calculator-button
{
    width: 100%;
    margin: 1.5rem 0;
    font-size: 1.1rem;
    padding: 1rem;
}
.result
{
    margin: 1.5rem 0;
    padding: 1.5rem;
    background: #e8f4fc;
    border-radius: 8px;
    text-align: center;
    font-size: 1.3rem;
    font-weight: 600;
    color: #2c3e50;
    border: 1px solid #b8d4f0;
    min-height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
}
.result.error
{
    color: #e74c3c;
    background: #fdeaea;
    border-color: #f5c6cb;
}
.result.success
{
    color: #27ae60;
    background: #eafaf1;
    border-color: #c3e6cb;
}
.calculator-info
{
    margin-top: 2rem;
    padding-top: 1.5rem;
    border-top: 1px solid #eaeaea;
}
.calculator-info h3
{
    color: #2c3e50;
    margin-bottom: 1rem;
}
.calculator-info p
{
    margin-bottom: 0.8rem;
    line-height: 1.6;
}
.usage-tips
{
    background: #fff;
    border-radius: 8px;
    padding: 2rem;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
    border: 1px solid #eaeaea;
}
.usage-tips h3
{
    color: #2c3e50;
    margin-bottom: 1rem;
}
.usage-tips ul
{
    padding-left: 1.2rem;
}
.usage-tips li
{
    margin-bottom: 0.8rem;
    line-height: 1.5;
}
.page-actions
{
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-top: 3rem;
    padding-top: 2rem;
    border-top: 1px solid #eee;
}
.back-link
{
    display: inline-block;
    color: #3498db;
    text-decoration: none;
    font-weight: 500;
    padding: 0.8rem 1.5rem;
    border: 1px solid #ddd;
    border-radius: 4px;
    transition: all 0.25s ease;
}
.back-link:hover
{
    background: #f8f9fa;
    border-color: #3498db;
}
@media (max-width: 768px)
{
    .calculator-container
    {
        grid-template-columns: 1fr;
    }
    .calculator-form,
    .usage-tips
    {
        padding: 1.5rem;
    }
    .page-actions
    {
        flex-direction: column;
        align-items: center;
    }
    .back-link
    {
        width: 100%;
        text-align: center;
        margin-bottom: 0.5rem;
    }
}