:root {
    --primary: #1e3a8a;
    --primary-dark: #1e40af;
    --secondary: #10b981;
    --danger: #ef4444;
    --warning: #f59e0b;
    --dark: #111827;
    --light: #f9fafb;
    --gray: #6b7280;
    --gray-light: #e5e7eb;
    --border-radius: 12px;
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
}

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

body {
    font-family: 'Inter', sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    display: flex;
    color: var(--dark);
}

/* 侧边栏 */
.sidebar {
    width: 280px;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    padding: 24px;
    display: flex;
    flex-direction: column;
    box-shadow: var(--shadow);
    z-index: 100;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 32px;
    padding-bottom: 16px;
    border-bottom: 2px solid var(--gray-light);
}

.logo i {
    font-size: 28px;
    color: var(--primary);
}

.logo h2 {
    font-size: 20px;
    font-weight: 700;
    background: linear-gradient(90deg, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.wallet-info {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    padding: 20px;
    border-radius: var(--border-radius);
    color: white;
    margin-bottom: 24px;
}

.wallet-address {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    margin-bottom: 12px;
    background: rgba(255, 255, 255, 0.1);
    padding: 8px 12px;
    border-radius: 20px;
    font-family: monospace;
}

.balance {
    display: flex;
    justify-content: space-between;
    margin-bottom: 16px;
    font-size: 18px;
    font-weight: 600;
}

.btn-connect {
    width: 100%;
    padding: 12px;
    background: white;
    color: var(--primary);
    border: none;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.btn-connect:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 12px rgba(0, 0, 0, 0.15);
}

.nav-menu {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-bottom: 32px;
}

.nav-item {
    padding: 14px 16px;
    border-radius: 10px;
    text-decoration: none;
    color: var(--gray);
    display: flex;
    align-items: center;
    gap: 12px;
    transition: all 0.3s;
}

.nav-item:hover {
    background: var(--gray-light);
    color: var(--primary);
}

.nav-item.active {
    background: linear-gradient(90deg, var(--primary), var(--primary-dark));
    color: white;
}

.system-status {
    margin-top: auto;
    background: var(--light);
    padding: 20px;
    border-radius: var(--border-radius);
}

.status-item {
    display: flex;
    justify-content: space-between;
    margin-bottom: 12px;
    font-size: 14px;
}

.status-label {
    color: var(--gray);
}

.status-value {
    font-weight: 600;
}

.online {
    color: var(--secondary);
}

/* 主内容区 */
.main-content {
    flex: 1;
    background: var(--light);
    border-radius: var(--border-radius);
    margin: 16px 16px 16px 0;
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.topbar {
    background: white;
    padding: 20px 32px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
    border-bottom: 1px solid var(--gray-light);
}

.search-box {
    position: relative;
    width: 400px;
}

.search-box i {
    position: absolute;
    left: 16px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--gray);
}

.search-box input {
    width: 100%;
    padding: 14px 14px 14px 48px;
    border: 2px solid var(--gray-light);
    border-radius: 12px;
    font-size: 14px;
    transition: all 0.3s;
}

.search-box input:focus {
    outline: none;
    border-color: var(--primary);
}

.topbar-controls {
    display: flex;
    align-items: center;
    gap: 16px;
}

.btn-control {
    padding: 12px 24px;
    border: none;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 8px;
    transition: all 0.3s;
}

.btn-control:not(.btn-danger) {
    background: var(--primary);
    color: white;
}

.btn-danger {
    background: var(--danger);
    color: white;
}

.btn-control:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow);
}

.notification-bell {
    position: relative;
    cursor: pointer;
    font-size: 20px;
    color: var(--gray);
    padding: 8px;
}

.notification-count {
    position: absolute;
    top: -5px;
    right: -5px;
    background: var(--danger);
    color: white;
    font-size: 12px;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* 页面内容 */
.page {
    flex: 1;
    padding: 32px;
    overflow-y: auto;
    display: none;
}

.page.active {
    display: block;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 24px;
    margin-bottom: 32px;
}

.stat-card {
    background: white;
    padding: 24px;
    border-radius: var(--border-radius);
    display: flex;
    align-items: center;
    gap: 20px;
    box-shadow: var(--shadow);
    transition: transform 0.3s;
}

.stat-card:hover {
    transform: translateY(-4px);
}

.stat-icon {
    width: 60px;
    height: 60px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    color: white;
}

.bg-blue { background: linear-gradient(135deg, #3b82f6, #1d4ed8); }
.bg-green { background: linear-gradient(135deg, #10b981, #059669); }
.bg-orange { background: linear-gradient(135deg, #f59e0b, #d97706); }
.bg-red { background: linear-gradient(135deg, #ef4444, #dc2626); }

.stat-info h3 {
    font-size: 14px;
    color: var(--gray);
    margin-bottom: 4px;
}

.stat-value {
    font-size: 28px;
    font-weight: 700;
    margin-bottom: 4px;
}

.stat-value.positive {
    color: var(--secondary);
}

.stat-change {
    font-size: 12px;
    color: var(--gray);
}

/* 监控面板 */
.monitor-panel, .trading-panel {
    background: white;
    border-radius: var(--border-radius);
    margin-bottom: 32px;
    box-shadow: var(--shadow);
}

.panel-header {
    padding: 24px 24px 0 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

.panel-header h3 {
    font-size: 18px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.table-container {
    overflow-x: auto;
}

.pools-table {
    width: 100%;
    border-collapse: collapse;
}

.pools-table th {
    padding: 16px 24px;
    text-align: left;
    background: var(--light);
    font-weight: 600;
    color: var(--gray);
    border-bottom: 2px solid var(--gray-light);
}

.pools-table td {
    padding: 20px 24px;
    border-bottom: 1px solid var(--gray-light);
}

.pools-table tr:hover {
    background: var(--light);
}

/* 交易表单 */
.trading-form {
    padding: 0 24px 24px;
}

.form-group {
    margin-bottom: 24px;
}

.form-group label {
    display: block;
    margin-bottom: 12px;
    font-weight: 600;
    color: var(--dark);
    display: flex;
    align-items: center;
    gap: 8px;
}

.form-row {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
}

.form-col {
    display: flex;
    flex-direction: column;
}

.form-col input, .form-col select {
    padding: 14px;
    border: 2px solid var(--gray-light);
    border-radius: 8px;
    font-size: 14px;
    transition: all 0.3s;
}

.form-col input:focus, .form-col select:focus {
    outline: none;
    border-color: var(--primary);
}

.form-col small {
    margin-top: 6px;
    font-size: 12px;
    color: var(--gray);
}

.form-actions {
    display: flex;
    gap: 16px;
    padding-top: 24px;
    border-top: 2px solid var(--gray-light);
}

.btn-primary, .btn-success {
    padding: 16px 32px;
    border: none;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    font-size: 16px;
    transition: all 0.3s;
}

.btn-primary {
    background: var(--primary);
    color: white;
}

.btn-success {
    background: var(--secondary);
    color: white;
}

.btn-primary:hover, .btn-success:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow);
}

/* 模态框 */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: 1000;
    align-items: center;
    justify-content: center;
}

.modal-content {
    background: white;
    padding: 40px;
    border-radius: var(--border-radius);
    width: 90%;
    max-width: 500px;
    text-align: center;
}

.wallet-options {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
    margin: 24px 0;
}

.wallet-option {
    padding: 20px;
    border: 2px solid var(--gray-light);
    border-radius: 12px;
    background: white;
    cursor: pointer;
    transition: all 0.3s;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
}

.wallet-option:hover {
    border-color: var(--primary);
    transform: translateY(-2px);
}

.wallet-option img {
    width: 40px;
    height: 40px;
}

/* 响应式设计 */
@media (max-width: 1200px) {
    .sidebar {
        width: 240px;
    }
    .form-row {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    body {
        flex-direction: column;
    }
    .sidebar {
        width: 100%;
        height: auto;
    }
    .main-content {
        margin: 0;
        border-radius: 0;
    }
    .form-row {
        grid-template-columns: 1fr;
    }
    .stats-grid {
        grid-template-columns: 1fr;
    }
}