/* 全局样式 */
body {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    font-family: 'Microsoft YaHei', 'Segoe UI', sans-serif;
}

.container-fluid {
    padding-bottom: 30px;
}

/* 卡片阴影 */
.card {
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    border: none;
    border-radius: 8px;
}

.card-header {
    border-radius: 8px 8px 0 0 !important;
    border: none;
}

/* 统计卡片 */
.stat-card {
    padding: 15px;
    background: #f8f9fa;
    border-radius: 8px;
    transition: transform 0.2s;
}

.stat-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

.stat-label {
    font-size: 0.9rem;
    color: #6c757d;
    margin-bottom: 8px;
}

.stat-value {
    font-size: 1.8rem;
    font-weight: bold;
}

/* 表格样式 */
.table-responsive {
    max-height: 500px;
    overflow-y: auto;
}

.table input {
    border: 1px solid #dee2e6;
    padding: 4px 8px;
    width: 100%;
    border-radius: 4px;
}

.table input:focus {
    outline: none;
    border-color: #0d6efd;
    box-shadow: 0 0 0 0.2rem rgba(13, 110, 253, 0.25);
}

.table tbody tr:hover {
    background-color: #f8f9fa;
}

/* 删除按钮 */
.btn-delete {
    padding: 2px 8px;
    font-size: 0.9rem;
}

/* 按钮样式增强 */
.btn {
    border-radius: 6px;
    transition: all 0.2s;
}

.btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.15);
}

.btn:active {
    transform: translateY(0);
}

/* 日志区域 */
.log-area {
    height: 300px;
    overflow-y: auto;
    background: #1e1e1e;
    color: #d4d4d4;
    font-family: 'Consolas', 'Courier New', monospace;
    font-size: 0.85rem;
    padding: 10px;
}

.log-entry {
    padding: 4px 0;
    border-bottom: 1px solid #333;
}

.log-entry:last-child {
    border-bottom: none;
}

.log-time {
    color: #858585;
    margin-right: 8px;
}

.log-success {
    color: #4ec9b0;
}

.log-error {
    color: #f48771;
}

.log-info {
    color: #9cdcfe;
}

.log-warning {
    color: #dcdcaa;
}

/* 模拟结果样式 */
#simulationResults {
    max-height: 400px;
    overflow-y: auto;
}

.simulation-stat {
    padding: 8px;
    margin-bottom: 8px;
    background: #f8f9fa;
    border-radius: 4px;
    border-left: 4px solid #0d6efd;
}

.simulation-stat strong {
    display: inline-block;
    min-width: 120px;
}

/* 标题动画 */
header h1 {
    animation: fadeInDown 0.6s ease-in-out;
}

@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* 加载动画 */
.loading-spinner {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top-color: #fff;
    animation: spin 1s ease-in-out infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* 概率验证指示器 */
.prob-valid {
    color: #198754;
    font-weight: bold;
}

.prob-invalid {
    color: #dc3545;
    font-weight: bold;
}

/* 响应式调整 */
@media (max-width: 768px) {
    .stat-value {
        font-size: 1.4rem;
    }

    .table-responsive {
        font-size: 0.9rem;
    }

    .log-area {
        height: 200px;
    }
}

/* 滚动条美化 */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: #f1f1f1;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb {
    background: #888;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: #555;
}

/* 输入框禁用箭头 (Chrome, Safari, Edge) */
input[type=number]::-webkit-inner-spin-button,
input[type=number]::-webkit-outer-spin-button {
    opacity: 1;
}

/* 模态框样式 */
.modal-content {
    border-radius: 8px;
}

.modal-header {
    border-bottom: 2px solid #dee2e6;
}

/* 图表容器 */
.chart-container {
    position: relative;
    height: 300px;
    margin-top: 10px;
}

/* 提示文本 */
.help-text {
    font-size: 0.85rem;
    color: #6c757d;
    font-style: italic;
}

/* 高亮效果 */
.highlight {
    animation: highlightFade 1.5s ease-in-out;
}

@keyframes highlightFade {
    0% { background-color: #fff3cd; }
    100% { background-color: transparent; }
}