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

:root {
    --bg: #0d1117;
    --bg-secondary: #161b22;
    --bg-tertiary: #21262d;
    --border: #30363d;
    --text: #e6edf3;
    --text-muted: #8b949e;
    --accent: #58a6ff;
    --accent-hover: #79b8ff;
    --success: #3fb950;
    --danger: #f85149;
    --warning: #d29922;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    background: var(--bg);
    color: var(--text);
    padding: 20px;
    line-height: 1.5;
}

h1 { color: var(--text); font-size: 24px; }
h2 { color: var(--text-muted); font-size: 12px; text-transform: uppercase; letter-spacing: 0.5px; margin: 0; }

/* Cluster bar */
.cluster-bar {
    display: flex;
    align-items: center;
    gap: 4px;
    margin-bottom: 24px;
    border-bottom: 1px solid var(--border);
    padding-bottom: 0;
}

.cluster-tabs { display: flex; gap: 4px; }

.cluster-tab {
    background: transparent;
    color: var(--text-muted);
    padding: 10px 16px;
    border-radius: 6px 6px 0 0;
    font-weight: 500;
    font-size: 14px;
    border: 1px solid transparent;
    border-bottom: none;
    margin-bottom: -1px;
    cursor: pointer;
}

.cluster-tab:hover { color: var(--text); background: var(--bg-secondary); }
.cluster-tab.active {
    background: var(--bg-secondary);
    color: var(--accent);
    border-color: var(--border);
    border-bottom-color: var(--bg-secondary);
    font-weight: 600;
}

.cluster-tab-remove {
    margin-left: 8px;
    color: var(--text-muted);
    font-size: 16px;
    line-height: 1;
}
.cluster-tab-remove:hover { color: var(--danger); }

.cluster-add {
    background: transparent;
    color: var(--text-muted);
    border: 1px dashed var(--border);
    padding: 6px 12px;
    border-radius: 6px;
    font-size: 16px;
    font-weight: 400;
    margin-bottom: -1px;
}
.cluster-add:hover { color: var(--accent); border-color: var(--accent); background: transparent; }

.cluster-form {
    display: flex;
    gap: 8px;
    align-items: center;
    margin-bottom: 16px;
    padding: 12px 16px;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 8px;
}
.cluster-form.hidden { display: none; }
.cluster-form input { width: 180px; }

input[type="text"], input[type="number"] {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    color: var(--text);
    padding: 8px 12px;
    border-radius: 6px;
    font-size: 14px;
}

input:focus { outline: none; border-color: var(--accent); }

button {
    background: var(--accent);
    color: var(--bg);
    border: none;
    padding: 8px 16px;
    border-radius: 6px;
    cursor: pointer;
    font-weight: 600;
    font-size: 13px;
    transition: background 0.15s;
}

button:hover { background: var(--accent-hover); }
button.danger { background: var(--danger); color: #fff; }
button.danger:hover { background: #da3633; }
button.secondary { background: var(--bg-tertiary); color: var(--text-muted); border: 1px solid var(--border); }
button.secondary:hover { background: var(--border); color: var(--text); }
button.small { padding: 5px 10px; font-size: 12px; }

label {
    display: flex;
    align-items: center;
    gap: 6px;
    color: var(--text-muted);
    font-size: 14px;
}

.stats {
    display: flex;
    gap: 16px;
    margin-bottom: 24px;
}

.stat {
    background: var(--bg-secondary);
    padding: 16px 20px;
    border-radius: 8px;
    border: 1px solid var(--border);
    min-width: 100px;
}

.stat-value { font-size: 28px; font-weight: 600; color: var(--text); }
.stat-value code { font-size: 16px; background: none; padding: 0; color: var(--text); }
.stat-label { font-size: 11px; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.5px; margin-top: 4px; }

.stats.settling .stat { border-color: var(--warning); }
.stats.settling .stat-label { color: var(--warning); }

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

.settle-badge {
    display: none;
    background: rgba(210, 153, 34, 0.15);
    color: var(--warning);
    padding: 8px 16px;
    border-radius: 6px;
    margin-bottom: 16px;
    border: 1px solid rgba(210, 153, 34, 0.4);
    font-size: 13px;
    font-weight: 500;
    animation: settle-pulse 2s ease-in-out infinite;
}

.settle-badge.active { display: block; }

/* Tabs */
.tabs {
    display: flex;
    gap: 4px;
    margin-bottom: 0;
    border-bottom: 1px solid var(--border);
    padding-bottom: 0;
}

.tab {
    background: transparent;
    color: var(--text-muted);
    padding: 12px 20px;
    border-radius: 6px 6px 0 0;
    font-weight: 500;
    border: 1px solid transparent;
    border-bottom: none;
    margin-bottom: -1px;
}

.tab:hover { color: var(--text); background: var(--bg-secondary); }
.tab.active {
    background: var(--bg-secondary);
    color: var(--text);
    border-color: var(--border);
    border-bottom-color: var(--bg-secondary);
}

.tab-content { display: none; }
.tab-content.active { display: block; }

/* Panel */
.panel {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-top: none;
    border-radius: 0 0 8px 8px;
    padding: 20px;
}

.panel-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 16px;
}

/* Form */
.form {
    background: var(--bg-tertiary);
    padding: 16px;
    border-radius: 8px;
    margin-bottom: 16px;
    border: 1px solid var(--border);
}

.form.hidden { display: none; }

.form-row {
    display: flex;
    gap: 12px;
    margin-bottom: 12px;
}

.form-row:last-child { margin-bottom: 0; }
.form-row input { flex: 1; }

textarea {
    width: 100%;
    background: var(--bg);
    border: 1px solid var(--border);
    color: var(--text);
    padding: 12px;
    border-radius: 6px;
    font-family: 'SF Mono', Monaco, monospace;
    font-size: 13px;
    resize: vertical;
    margin-bottom: 12px;
}

textarea:focus { outline: none; border-color: var(--accent); }

/* Table */
table {
    width: 100%;
    border-collapse: collapse;
}

th, td {
    padding: 12px;
    text-align: left;
    border-bottom: 1px solid var(--border);
}

th {
    color: var(--text-muted);
    font-size: 11px;
    text-transform: uppercase;
    font-weight: 500;
    letter-spacing: 0.5px;
}

tbody tr:hover { background: var(--bg-tertiary); }
tbody tr:last-child td { border-bottom: none; }
/* Styled tooltips via data-tooltip */
[data-tooltip] {
    position: relative;
    cursor: help;
    border-bottom: 1px dotted var(--text-muted);
}

[data-tooltip]::after {
    content: attr(data-tooltip);
    position: absolute;
    left: 0;
    top: calc(100% + 6px);
    background: var(--bg-tertiary);
    color: var(--text);
    border: 1px solid var(--border);
    padding: 8px 12px;
    border-radius: 6px;
    font-size: 12px;
    font-family: 'SF Mono', Monaco, monospace;
    white-space: pre;
    line-height: 1.6;
    z-index: 50;
    pointer-events: none;
    opacity: 0;
    transition: opacity 0.15s;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.4);
}

[data-tooltip]:hover::after {
    opacity: 1;
}

code {
    background: var(--bg);
    padding: 3px 8px;
    border-radius: 4px;
    font-size: 12px;
    font-family: 'SF Mono', Monaco, monospace;
    color: var(--accent);
}

.status {
    display: inline-block;
    padding: 4px 10px;
    border-radius: 20px;
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.3px;
}

.status.running { background: rgba(63, 185, 80, 0.15); color: var(--success); }
.status.stopping { background: rgba(210, 153, 34, 0.15); color: var(--warning); animation: settle-pulse 2s ease-in-out infinite; }
.status.stopped { background: rgba(139, 148, 158, 0.15); color: var(--text-muted); }
.status.failed { background: rgba(248, 81, 73, 0.15); color: var(--danger); }

.status-ok { color: var(--success); font-weight: 600; }
.status-degraded { color: var(--danger); font-weight: 600; }

.error-text { color: var(--danger); font-weight: 600; }

.error {
    background: rgba(248, 81, 73, 0.15);
    color: var(--danger);
    padding: 12px 16px;
    border-radius: 6px;
    margin: 12px 0;
    border: 1px solid rgba(248, 81, 73, 0.4);
}

.warning {
    background: rgba(210, 153, 34, 0.15);
    color: var(--warning);
    padding: 8px 16px;
    border-radius: 6px;
    margin-bottom: 16px;
    border: 1px solid rgba(210, 153, 34, 0.4);
    font-size: 13px;
    font-weight: 500;
    animation: settle-pulse 2s ease-in-out infinite;
}

.refresh {
    color: var(--text-muted);
    font-size: 12px;
    margin-left: auto;
}

.empty {
    color: var(--text-muted);
    text-align: center;
    padding: 32px;
    font-style: italic;
}

/* Modal */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.7);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 100;
    backdrop-filter: blur(4px);
}

.modal.hidden { display: none; }

.modal-content {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 12px;
    width: 85%;
    max-width: 1000px;
    max-height: 85vh;
    display: flex;
    flex-direction: column;
    box-shadow: 0 16px 48px rgba(0, 0, 0, 0.4);
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 20px;
    border-bottom: 1px solid var(--border);
}

.modal-header h3 { color: var(--text); font-size: 16px; }

.log-controls {
    display: flex;
    gap: 8px;
}

.log-controls button {
    background: var(--bg-tertiary);
    color: var(--text-muted);
    border: 1px solid var(--border);
}

.log-controls button:hover {
    background: var(--border);
    color: var(--text);
}

.log-controls button.active {
    background: var(--accent);
    color: var(--bg);
    border-color: var(--accent);
}

#logOutput {
    flex: 1;
    overflow: auto;
    padding: 16px 20px;
    font-family: 'SF Mono', Monaco, monospace;
    font-size: 12px;
    line-height: 1.6;
    background: var(--bg);
    margin: 0;
    max-height: 65vh;
    white-space: pre-wrap;
    word-wrap: break-word;
    color: var(--text-muted);
}