* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #1f2937;
    --secondary-color: #6b7280;
    --success-color: #059669;
    --danger-color: #dc2626;
    --warning-color: #d97706;
    --background-color: #f9fafb;
    --surface-color: #ffffff;
    --border-color: #e5e7eb;
    --text-primary: #111827;
    --text-secondary: #6b7280;
    --shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: var(--background-color);
    color: var(--text-primary);
    line-height: 1.6;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
}

/* Header */
.header {
    background-color: var(--surface-color);
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 100;
}

.header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem;
}

.controls {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.refresh-controls {
    display: none; /* 不再使用顶部刷新控制 */
}

.refresh-btn {
    background: var(--primary-color);
    color: white;
    border: none;
    padding: 0.5rem 1rem;
    border-radius: 0.375rem;
    cursor: pointer;
    font-size: 0.875rem;
    transition: all 0.2s;
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

.refresh-btn:hover:not(:disabled) {
    background: #374151;
    transform: translateY(-1px);
}

.refresh-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

.refresh-btn.loading {
    position: relative;
    pointer-events: none;
}

.refresh-btn.cache-btn {
    background: var(--warning-color);
}

.refresh-btn.cache-btn:hover:not(:disabled) {
    background: #92400e;
}

.refresh-btn.cache-btn:disabled {
    background: var(--warning-color);
    opacity: 0.6;
}

.title {
    color: var(--primary-color);
    font-size: 1.5rem;
    font-weight: 700;
}

.filters {
    display: flex;
    gap: 1rem;
    align-items: center;
}

.filter-select,
.filter-input {
    padding: 0.5rem;
    border: 1px solid var(--border-color);
    border-radius: 0.375rem;
    background-color: var(--surface-color);
    font-size: 0.875rem;
    transition: border-color 0.2s;
}

.filter-select:focus,
.filter-input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

/* Main */
.main {
    padding: 2rem 0;
}

/* Panels */
.panel {
    background-color: var(--surface-color);
    border-radius: 0.75rem;
    box-shadow: var(--shadow);
    margin-bottom: 2.5rem;
    overflow: hidden;
}

.panel-title {
    padding: 1.5rem 1.5rem 1rem;
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
}

.date-range-indicator {
    font-size: 0.75rem;
    font-weight: 400;
    color: var(--text-secondary);
    background-color: var(--background-color);
    padding: 0.25rem 0.5rem;
    border-radius: 0.375rem;
    border: 1px solid var(--border-color);
    margin-left: 0.5rem;
}

.panel-content {
    padding: 0 1.5rem 1.5rem;
}

/* Stats Grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.stat-card {
    background-color: var(--background-color);
    border-radius: 0.5rem;
    padding: 1rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.stat-label {
    font-size: 0.75rem;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
}

.stat-value {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
}

/* Chart Section */
.chart-section {
    margin-bottom: 2rem;
}

.chart-title {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

#balanceChart {
    max-height: 400px;
}

/* Data Tables */
.data-table-wrapper {
    overflow-x: auto;
    border-radius: 0.5rem;
    border: 1px solid var(--border-color);
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.875rem;
}

.data-table th,
.data-table td {
    padding: 0.75rem;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.data-table th {
    background-color: var(--background-color);
    font-weight: 600;
    color: var(--text-primary);
    position: sticky;
    top: 0;
}

.data-table tbody tr:hover {
    background-color: var(--background-color);
}

.data-table .trade-buy {
    color: var(--success-color);
    font-weight: 600;
}

.data-table .trade-sell {
    color: var(--danger-color);
    font-weight: 600;
}

.data-table .strategy-grid {
    background-color: #f3f4f6;
    color: var(--primary-color);
    padding: 0.25rem 0.5rem;
    border-radius: 0.25rem;
    font-size: 0.75rem;
    font-weight: 600;
}

.data-table .strategy-shot {
    background-color: #fef3c7;
    color: var(--warning-color);
    padding: 0.25rem 0.5rem;
    border-radius: 0.25rem;
    font-size: 0.75rem;
    font-weight: 600;
}

/* Footer */
.footer {
    background-color: var(--surface-color);
    border-top: 1px solid var(--border-color);
    padding: 1rem 0;
    text-align: center;
    color: var(--text-secondary);
    font-size: 0.875rem;
}

/* Loading */
.loading {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.5);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    z-index: 9999;
    color: white;
    gap: 1rem;
}

.loading.hidden {
    display: none;
}

.spinner {
    width: 40px;
    height: 40px;
    border: 4px solid rgba(255, 255, 255, 0.3);
    border-left: 4px solid white;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Utility Classes */
.text-success {
    color: var(--success-color) !important;
}

.text-danger {
    color: var(--danger-color) !important;
}

.text-warning {
    color: var(--warning-color) !important;
}

.bg-success {
    background-color: var(--success-color) !important;
    color: white !important;
}

.bg-danger {
    background-color: var(--danger-color) !important;
    color: white !important;
}

/* Connection Status */
.connection-status {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.875rem;
    padding: 0.5rem 1rem;
    border-radius: 9999px;
    font-weight: 500;
    transition: all 0.2s;
}

.connection-status.connected {
    background-color: #f0fdf4;
    color: #166534;
    border: 1px solid #bbf7d0;
}

.connection-status.disconnected {
    background-color: #fef2f2;
    color: #dc2626;
    border: 1px solid #fecaca;
}

.status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    flex-shrink: 0;
    animation: pulse 2s infinite;
}

.connected .status-dot {
    background-color: #22c55e;
}

.disconnected .status-dot {
    background-color: #ef4444;
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.5;
    }
}

.hidden {
    display: none !important;
}