/* scaling.css — Scaling & Relay Nodes Management */

.scaling-page { padding: 0 16px; }

/* Tab bar */
.scaling-tabs {
    display: flex; gap: 4px; margin-bottom: 20px;
    border-bottom: 1px solid var(--border-primary, #2d333b);
    padding-bottom: 0;
}
.scaling-tab {
    display: flex; align-items: center; gap: 6px;
    padding: 10px 18px; border: none; background: none;
    color: var(--text-secondary, #8b949e); cursor: pointer;
    font-size: 13px; font-weight: 500;
    border-bottom: 2px solid transparent;
    transition: color .15s, border-color .15s;
}
.scaling-tab:hover { color: var(--text-primary, #e6edf3); }
.scaling-tab.active {
    color: var(--accent-blue, #58a6ff);
    border-bottom-color: var(--accent-blue, #58a6ff);
}
.scaling-tab .material-icons { font-size: 18px; }

/* Panels */
.scaling-panel { animation: fadeIn .2s ease; }

/* Toolbar */
.scaling-toolbar {
    display: flex; align-items: center; justify-content: space-between;
    gap: 12px; margin-bottom: 16px; flex-wrap: wrap;
}
.scaling-toolbar-left { display: flex; align-items: center; gap: 10px; flex: 1; min-width: 0; }
.scaling-toolbar-right { display: flex; gap: 8px; flex-shrink: 0; }

.scaling-input, .scaling-select {
    background: var(--bg-tertiary, #161b22); border: 1px solid var(--border-primary, #2d333b);
    color: var(--text-primary, #e6edf3); border-radius: 6px; padding: 7px 12px;
    font-size: 13px; outline: none; transition: border-color .15s;
}
.scaling-input:focus, .scaling-select:focus { border-color: var(--accent-blue, #58a6ff); }
.scaling-input::placeholder { color: var(--text-secondary, #8b949e); }
.scaling-hint { color: var(--text-secondary, #8b949e); font-size: 12px; margin: 0; line-height: 1.5; }

/* Empty state */
.scaling-empty {
    text-align: center; color: var(--text-secondary, #8b949e);
    padding: 40px 16px; font-size: 13px;
}

/* Tables */
.scaling-table-wrap { overflow-x: auto; }
.scaling-table {
    width: 100%; border-collapse: collapse;
    background: var(--bg-secondary, #0d1117);
    border: 1px solid var(--border-primary, #2d333b);
    border-radius: 8px; overflow: hidden;
}
.scaling-table th {
    text-align: left; padding: 10px 14px; font-size: 11px;
    text-transform: uppercase; letter-spacing: .5px;
    color: var(--text-secondary, #8b949e);
    background: var(--bg-tertiary, #161b22);
    border-bottom: 1px solid var(--border-primary, #2d333b);
    white-space: nowrap;
}
.scaling-table td {
    padding: 10px 14px; font-size: 13px;
    border-bottom: 1px solid var(--border-primary, #2d333b);
    color: var(--text-primary, #e6edf3);
}
.scaling-table tbody tr:hover { background: rgba(88,166,255,.04); }
.scaling-table tbody tr:last-child td { border-bottom: none; }

/* Section titles */
.scaling-section-title {
    display: flex; align-items: center; gap: 8px;
    font-size: 15px; font-weight: 600; margin: 24px 0 12px;
    color: var(--text-primary, #e6edf3);
}
.scaling-section-title .material-icons { font-size: 20px; color: var(--accent-blue, #58a6ff); }

/* Summary cards grid */
.scaling-summary-grid {
    display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 14px; margin-bottom: 24px;
}
.scaling-card {
    display: flex; align-items: center; gap: 14px;
    background: var(--bg-secondary, #0d1117);
    border: 1px solid var(--border-primary, #2d333b);
    border-radius: 10px; padding: 18px 20px;
    transition: border-color .15s;
}
.scaling-card:hover { border-color: var(--accent-blue, #58a6ff); }
.scaling-card-icon {
    width: 44px; height: 44px; border-radius: 10px;
    display: flex; align-items: center; justify-content: center;
    background: rgba(88,166,255,.1);
}
.scaling-card-icon .material-icons { font-size: 22px; color: var(--accent-blue, #58a6ff); }
.scaling-card-value { font-size: 22px; font-weight: 700; color: var(--text-primary, #e6edf3); }
.scaling-card-label { font-size: 12px; color: var(--text-secondary, #8b949e); margin-top: 2px; }

/* Architecture diagram */
.scaling-architecture {
    background: var(--bg-secondary, #0d1117);
    border: 1px solid var(--border-primary, #2d333b);
    border-radius: 10px; padding: 20px; margin-bottom: 20px;
}
.scaling-architecture h3 {
    display: flex; align-items: center; gap: 8px;
    font-size: 14px; font-weight: 600; margin: 0 0 16px;
    color: var(--text-primary, #e6edf3);
}
.scaling-architecture h3 .material-icons { font-size: 18px; color: var(--accent-blue, #58a6ff); }

.arch-diagram {
    min-height: 180px; display: flex; align-items: center; justify-content: center;
    position: relative;
}
.arch-diagram svg { width: 100%; height: auto; }
.arch-empty { color: var(--text-secondary, #8b949e); font-size: 13px; }

/* Relay health grid */
.scaling-relay-grid {
    display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 14px;
}
.relay-health-card {
    background: var(--bg-secondary, #0d1117);
    border: 1px solid var(--border-primary, #2d333b);
    border-radius: 10px; padding: 16px; transition: border-color .15s;
}
.relay-health-card:hover { border-color: var(--accent-blue, #58a6ff); }
.relay-health-header {
    display: flex; align-items: center; justify-content: space-between; margin-bottom: 12px;
}
.relay-health-name {
    font-size: 14px; font-weight: 600; color: var(--text-primary, #e6edf3);
    display: flex; align-items: center; gap: 6px;
}
.relay-health-dot {
    width: 8px; height: 8px; border-radius: 50%; flex-shrink: 0;
}
.relay-health-dot.online { background: #3fb950; }
.relay-health-dot.degraded { background: #d29922; }
.relay-health-dot.offline { background: #f85149; }

.relay-health-location { font-size: 11px; color: var(--text-secondary, #8b949e); }

.relay-health-metrics {
    display: grid; grid-template-columns: 1fr 1fr; gap: 8px;
}
.relay-metric {
    display: flex; flex-direction: column; gap: 3px;
}
.relay-metric-label { font-size: 10px; text-transform: uppercase; color: var(--text-secondary, #8b949e); letter-spacing: .3px; }
.relay-metric-bar {
    height: 6px; background: var(--bg-tertiary, #161b22);
    border-radius: 3px; overflow: hidden;
}
.relay-metric-fill {
    height: 100%; border-radius: 3px; transition: width .3s ease;
}
.relay-metric-fill.low { background: #3fb950; }
.relay-metric-fill.med { background: #d29922; }
.relay-metric-fill.high { background: #f85149; }
.relay-metric-value { font-size: 11px; color: var(--text-primary, #e6edf3); }

/* Capacity tiers */
.scaling-capacity-grid {
    display: grid; grid-template-columns: 1fr 1fr; gap: 20px; margin-bottom: 24px;
}
.capacity-section {
    background: var(--bg-secondary, #0d1117);
    border: 1px solid var(--border-primary, #2d333b);
    border-radius: 10px; padding: 20px;
}
.capacity-section h3 {
    display: flex; align-items: center; gap: 8px;
    font-size: 14px; font-weight: 600; margin: 0 0 16px;
    color: var(--text-primary, #e6edf3);
}
.capacity-section h3 .material-icons { font-size: 18px; color: var(--accent-blue, #58a6ff); }

.capacity-tier {
    margin-bottom: 12px;
}
.capacity-tier-header {
    display: flex; justify-content: space-between; margin-bottom: 4px;
}
.capacity-tier-name { font-size: 12px; font-weight: 600; color: var(--text-primary, #e6edf3); }
.capacity-tier-pct { font-size: 12px; color: var(--text-secondary, #8b949e); }
.capacity-tier-bar {
    height: 8px; background: var(--bg-tertiary, #161b22);
    border-radius: 4px; overflow: hidden;
}
.capacity-tier-fill {
    height: 100%; border-radius: 4px; transition: width .4s ease;
}
.capacity-tier-fill.ok { background: #3fb950; }
.capacity-tier-fill.warn { background: #d29922; }
.capacity-tier-fill.crit { background: #f85149; }

/* Recommendations */
.capacity-recs { display: flex; flex-direction: column; gap: 8px; }
.capacity-rec {
    display: flex; align-items: flex-start; gap: 8px;
    padding: 10px 12px; border-radius: 6px;
    font-size: 12px; line-height: 1.5;
}
.capacity-rec.info { background: rgba(88,166,255,.08); color: var(--text-primary, #e6edf3); }
.capacity-rec.warn { background: rgba(210,153,34,.08); color: #d29922; }
.capacity-rec.crit { background: rgba(248,81,73,.08); color: #f85149; }
.capacity-rec .material-icons { font-size: 16px; flex-shrink: 0; margin-top: 1px; }

/* Status badges */
.scaling-status {
    display: inline-flex; align-items: center; gap: 4px;
    padding: 2px 8px; border-radius: 10px; font-size: 11px; font-weight: 600;
}
.scaling-status.online { background: rgba(63,185,80,.12); color: #3fb950; }
.scaling-status.degraded { background: rgba(210,153,34,.12); color: #d29922; }
.scaling-status.offline { background: rgba(248,81,73,.12); color: #f85149; }
.scaling-status.enabled { background: rgba(63,185,80,.12); color: #3fb950; }
.scaling-status.disabled { background: rgba(139,148,158,.12); color: #8b949e; }

/* Modals */
.modal-overlay {
    position: fixed; inset: 0; z-index: 1000;
    background: rgba(0,0,0,.55); display: flex;
    align-items: center; justify-content: center;
    animation: fadeIn .15s ease;
}
.modal-card {
    background: var(--bg-secondary, #0d1117);
    border: 1px solid var(--border-primary, #2d333b);
    border-radius: 12px; width: 460px; max-width: 95vw;
    max-height: 85vh; overflow-y: auto;
}
.modal-header {
    display: flex; align-items: center; justify-content: space-between;
    padding: 16px 20px; border-bottom: 1px solid var(--border-primary, #2d333b);
}
.modal-header h3 { font-size: 15px; margin: 0; color: var(--text-primary, #e6edf3); }
.modal-close {
    background: none; border: none; color: var(--text-secondary, #8b949e);
    font-size: 20px; cursor: pointer; line-height: 1;
}
.modal-close:hover { color: var(--text-primary, #e6edf3); }
.modal-body { padding: 20px; }
.modal-body .form-group { margin-bottom: 14px; }
.modal-body .form-group label {
    display: block; font-size: 12px; font-weight: 600;
    color: var(--text-secondary, #8b949e); margin-bottom: 5px;
}
.modal-body .form-group input,
.modal-body .form-group select {
    width: 100%; box-sizing: border-box;
}
.modal-footer {
    display: flex; justify-content: flex-end; gap: 8px;
    padding: 14px 20px; border-top: 1px solid var(--border-primary, #2d333b);
}

/* Buttons */
.btn { cursor: pointer; border: none; border-radius: 6px; font-weight: 600; transition: background .15s; }
.btn-sm { padding: 7px 14px; font-size: 12px; }
.btn-primary { background: var(--accent-blue, #58a6ff); color: #fff; }
.btn-primary:hover { background: #79b8ff; }
.btn-secondary { background: var(--bg-tertiary, #161b22); color: var(--text-primary, #e6edf3); border: 1px solid var(--border-primary, #2d333b); }
.btn-secondary:hover { background: var(--border-primary, #2d333b); }
.btn-danger { background: rgba(248,81,73,.15); color: #f85149; }
.btn-danger:hover { background: rgba(248,81,73,.25); }
.btn-icon { background: none; border: none; color: var(--text-secondary, #8b949e); cursor: pointer; padding: 4px; }
.btn-icon:hover { color: var(--text-primary, #e6edf3); }

@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }

/* Responsive */
@media (max-width: 768px) {
    .scaling-summary-grid { grid-template-columns: repeat(2, 1fr); }
    .scaling-capacity-grid { grid-template-columns: 1fr; }
    .scaling-relay-grid { grid-template-columns: 1fr; }
    .scaling-tabs { overflow-x: auto; flex-wrap: nowrap; }
    .scaling-tab span:not(.material-icons) { display: none; }
}

.scaling-info-banner {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 14px;
    margin-bottom: 12px;
    background: rgba(96, 165, 250, 0.08);
    border: 1px solid rgba(96, 165, 250, 0.25);
    border-radius: 8px;
    color: var(--text-secondary, #cbd5e1);
    font-size: 13px;
    line-height: 1.4;
}
.scaling-info-banner .material-icons {
    color: #60a5fa;
    font-size: 18px;
    flex-shrink: 0;
}