/* 环境保护税计算器样式 */

body {
    background-color: #f5f5f5;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

.card {
    border: none;
    border-radius: 8px;
}

.card-header {
    border-radius: 8px 8px 0 0 !important;
}

.card-header.bg-green {
    background: linear-gradient(135deg, #28a745 0%, #1e7e34 100%) !important;
}

.form-label {
    font-weight: 500;
    color: #333;
}

.form-control:focus,
.form-select:focus {
    border-color: #28a745;
    box-shadow: 0 0 0 0.2rem rgba(40, 167, 69, 0.15);
}

.btn-success {
    background: linear-gradient(135deg, #28a745 0%, #1e7e34 100%);
    border: none;
    padding: 10px 20px;
    font-weight: 500;
    transition: all 0.3s ease;
}

.btn-success:hover {
    background: linear-gradient(135deg, #1e7e34 0%, #155724 100%);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(40, 167, 69, 0.3);
}

.table th {
    background-color: #f8f9fa;
    font-weight: 500;
}

.table td {
    vertical-align: middle;
}

.text-danger.fw-bold {
    font-size: 1.1em;
}

#formula code {
    display: block;
    padding: 10px;
    background-color: #f8f9fa;
    border-radius: 4px;
    font-family: "Courier New", monospace;
    color: #333;
    white-space: pre-wrap;
    word-break: break-all;
}

.card-footer {
    background-color: #fff;
    border-top: 1px solid #eee;
}

.nav-tabs .nav-link {
    color: #28a745;
}

.nav-tabs .nav-link.active {
    background-color: #28a745;
    color: white;
    border-color: #28a745;
}

.nav-tabs .nav-link:hover:not(.active) {
    border-color: #28a745;
    color: #1e7e34;
}

/* 响应式调整 */
@media (max-width: 768px) {
    .container {
        padding-left: 15px;
        padding-right: 15px;
    }

    .card-header h4 {
        font-size: 1.2rem;
    }

    .btn-success {
        padding: 12px 20px;
    }

    .nav-tabs .nav-link {
        font-size: 0.85rem;
        padding: 8px 10px;
    }
}

/* 动画效果 */
#result {
    animation: fadeIn 0.3s ease-in-out;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* 输入框数字右对齐 */
input[type="number"] {
    text-align: right;
}