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

:root {
    --primary-color: #2563eb;
    --success-color: #10b981;
    --error-color: #ef4444;
    --warning-color: #f59e0b;
    --bg-color: #0f172a;
    --card-bg: #1e293b;
    --text-primary: #f1f5f9;
    --text-secondary: #94a3b8;
    --border-color: #334155;
    --hover-color: #334155;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background: var(--bg-color);
    color: var(--text-primary);
    line-height: 1.6;
    padding: 20px;
    min-height: 100vh;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
}

/* Header */
header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
    padding: 20px;
    background: var(--card-bg);
    border-radius: 12px;
    border: 1px solid var(--border-color);
}

header h1 {
    font-size: 28px;
    font-weight: 700;
    color: var(--text-primary);
}

.header-controls {
    display: flex;
    gap: 15px;
    align-items: center;
}

.auto-refresh-toggle {
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    color: var(--text-secondary);
}

.auto-refresh-toggle input[type="checkbox"] {
    width: 18px;
    height: 18px;
    cursor: pointer;
}

#refreshInterval {
    padding: 8px 12px;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    color: var(--text-primary);
    cursor: pointer;
}

.btn-primary, .btn-secondary {
    padding: 10px 20px;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-weight: 600;
    transition: all 0.2s;
}

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

.btn-primary:hover {
    background: #1d4ed8;
    transform: translateY(-1px);
}

.btn-secondary {
    background: var(--card-bg);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

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

/* Status Bar */
.status-bar {
    display: flex;
    gap: 20px;
    margin-bottom: 20px;
    padding: 15px 20px;
    background: var(--card-bg);
    border-radius: 8px;
    border: 1px solid var(--border-color);
}

.status-item {
    display: flex;
    align-items: center;
    gap: 10px;
}

.status-label {
    color: var(--text-secondary);
    font-size: 14px;
}

.status-badge {
    padding: 4px 12px;
    border-radius: 12px;
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
}

.status-badge.active {
    background: var(--success-color);
    color: white;
}

.status-badge.inactive {
    background: var(--error-color);
    color: white;
}

.status-badge.checking {
    background: var(--warning-color);
    color: white;
}

/* Cards */
.card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 24px;
    margin-bottom: 20px;
    transition: transform 0.2s, box-shadow 0.2s;
}

.card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

.card h2 {
    font-size: 20px;
    margin-bottom: 20px;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 10px;
}

/* Health Card */
.health-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 20px;
}

.health-status {
    display: flex;
    align-items: center;
    gap: 15px;
}

.status-indicator {
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--error-color);
    animation: pulse 2s infinite;
}

.status-indicator.active {
    background: var(--success-color);
}

.status-indicator.inactive {
    background: var(--error-color);
}

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

.status-text {
    font-size: 24px;
    font-weight: 700;
    color: var(--text-primary);
}

.status-details {
    font-size: 14px;
    color: var(--text-secondary);
    margin-top: 4px;
}

.health-info {
    display: flex;
    gap: 30px;
}

.info-item {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.info-label {
    font-size: 12px;
    color: var(--text-secondary);
    text-transform: uppercase;
}

.info-value {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
}

/* Metrics Grid */
.metrics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
}

.metric-box {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 20px;
    background: rgba(37, 99, 235, 0.1);
    border: 1px solid rgba(37, 99, 235, 0.3);
    border-radius: 8px;
    transition: all 0.2s;
}

.metric-box:hover {
    background: rgba(37, 99, 235, 0.2);
    transform: translateY(-2px);
}

.metric-icon {
    font-size: 32px;
}

.metric-content {
    flex: 1;
}

.metric-label {
    font-size: 12px;
    color: var(--text-secondary);
    text-transform: uppercase;
    margin-bottom: 4px;
}

.metric-value {
    font-size: 28px;
    font-weight: 700;
    color: var(--text-primary);
}

.metric-value .unit {
    font-size: 16px;
    color: var(--text-secondary);
    font-weight: 400;
}

/* Connections & Commands Grid */
.connections-grid, .commands-grid, .errors-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
}

.connection-stat, .command-stat, .error-stat {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 20px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-color);
    border-radius: 8px;
}

.stat-icon {
    font-size: 28px;
}

.stat-content {
    flex: 1;
}

.stat-label {
    font-size: 12px;
    color: var(--text-secondary);
    text-transform: uppercase;
    margin-bottom: 4px;
}

.stat-value {
    font-size: 24px;
    font-weight: 700;
    color: var(--text-primary);
}

/* Queue Section */
.queue-info {
    padding: 20px;
}

.queue-stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
}

.queue-stat-box {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 20px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-color);
    border-radius: 8px;
}

/* Failed Jobs Table */
.failed-jobs-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 13px;
}

.failed-jobs-table th,
.failed-jobs-table td {
    padding: 10px 12px;
    border-bottom: 1px solid var(--border-color);
    text-align: left;
    vertical-align: top;
}

.failed-jobs-table th {
    color: var(--text-secondary);
    font-weight: 600;
    text-transform: uppercase;
    font-size: 11px;
}

.failed-jobs-table td {
    color: var(--text-primary);
}

.failed-jobs-table .placeholder-text {
    text-align: center;
    padding: 16px;
}

.failed-reason {
    max-width: 520px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.placeholder-text {
    color: var(--text-secondary);
    font-style: italic;
    text-align: center;
    padding: 20px;
}

/* Configuration */
.config-content {
    display: flex;
    gap: 15px;
    align-items: center;
}

.config-item {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.config-item label {
    font-size: 12px;
    color: var(--text-secondary);
    text-transform: uppercase;
}

.config-item input {
    padding: 10px;
    background: var(--bg-color);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    color: var(--text-primary);
    font-size: 14px;
}

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

/* Responsive */
@media (max-width: 768px) {
    header {
        flex-direction: column;
        gap: 15px;
        align-items: flex-start;
    }

    .header-controls {
        width: 100%;
        flex-wrap: wrap;
    }

    .health-content {
        flex-direction: column;
        align-items: flex-start;
    }

    .metrics-grid,
    .connections-grid,
    .commands-grid,
    .errors-grid {
        grid-template-columns: 1fr;
    }
}

/* Loading Animation */
.loading {
    opacity: 0.6;
    pointer-events: none;
}

/* Error Message */
.error-message {
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid var(--error-color);
    color: var(--error-color);
    padding: 15px;
    border-radius: 8px;
    margin: 10px 0;
}