/* ============================================================
   FluxGate — Dark Theme Design System
   ============================================================ */

/* ---------- CSS Custom Properties ---------- */
:root {
  --bg:        #0f172a;
  --surface:   #1e293b;
  --surface2:  #263348;
  --border:    #334155;
  --border2:   #475569;
  --text:      #e2e8f0;
  --text-muted:#94a3b8;
  --text-dim:  #64748b;
  --accent:    #3b82f6;
  --accent-hover: #2563eb;
  --success:   #22c55e;
  --warning:   #f59e0b;
  --danger:    #ef4444;
  --danger-hover: #dc2626;
  --info:      #06b6d4;
  --sidebar-w: 240px;
  --radius:    8px;
  --radius-sm: 4px;
  --radius-lg: 12px;
  --shadow:    0 4px 24px rgba(0,0,0,0.4);
  --shadow-sm: 0 2px 8px rgba(0,0,0,0.3);
  --transition: 150ms ease;
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html, body { height: 100%; }
body {
  font-family: system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  font-size: 14px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
ul { list-style: none; }
input, select, textarea, button { font: inherit; }
pre, code { font-family: 'Cascadia Code', 'JetBrains Mono', 'Fira Code', Consolas, monospace; }

/* ---------- Layout ---------- */
.layout {
  display: flex;
  height: 100vh;
  overflow: hidden;
}

/* ---------- Sidebar ---------- */
.sidebar {
  width: var(--sidebar-w);
  flex-shrink: 0;
  background: var(--surface);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  overflow-y: auto;
  overflow-x: hidden;
}

.sidebar-header {
  padding: 20px 16px 16px;
  border-bottom: 1px solid var(--border);
}

.logo {
  font-size: 18px;
  font-weight: 700;
  color: var(--text);
  letter-spacing: -0.3px;
}

.nav-links {
  flex: 1;
  padding: 12px 8px;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.nav-links li { display: block; }

.nav-link {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 12px;
  border-radius: var(--radius-sm);
  color: var(--text-muted);
  font-size: 14px;
  font-weight: 500;
  transition: background var(--transition), color var(--transition);
  cursor: pointer;
  position: relative;
}

.nav-link:hover {
  background: var(--surface2);
  color: var(--text);
  text-decoration: none;
}

.nav-link.active {
  background: rgba(59, 130, 246, 0.15);
  color: var(--accent);
}

.nav-icon {
  font-size: 16px;
  width: 20px;
  text-align: center;
  flex-shrink: 0;
}

.nav-link .badge {
  margin-left: auto;
  background: var(--warning);
  color: #000;
  font-size: 11px;
  font-weight: 700;
  border-radius: 10px;
  padding: 1px 7px;
  min-width: 20px;
  text-align: center;
}

.sidebar-footer {
  padding: 16px;
  border-top: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}

.nav-user {
  font-size: 13px;
  color: var(--text-muted);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  flex: 1;
}

/* ---------- Main Content ---------- */
.main-content {
  flex: 1;
  overflow-y: auto;
  overflow-x: hidden;
  padding: 24px 28px;
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.page-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}

.page-title {
  font-size: 22px;
  font-weight: 700;
  color: var(--text);
  letter-spacing: -0.3px;
}

/* ---------- Stat Cards ---------- */
.stat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 16px;
}

.stat-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  transition: border-color var(--transition);
}

.stat-card:hover { border-color: var(--border2); }

.stat-label {
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.6px;
  color: var(--text-muted);
}

.stat-value {
  font-size: 32px;
  font-weight: 700;
  line-height: 1;
  color: var(--text);
}

.stat-value.accent  { color: var(--accent); }
.stat-value.success { color: var(--success); }
.stat-value.warning { color: var(--warning); }
.stat-value.danger  { color: var(--danger); }

.stat-sub {
  font-size: 12px;
  color: var(--text-muted);
}

/* ---------- Sections / Cards ---------- */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}

.card-header {
  padding: 14px 18px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.card-title {
  font-size: 14px;
  font-weight: 600;
  color: var(--text);
}

.card-body { padding: 18px; }

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

.section-title {
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
}

/* ---------- Tables ---------- */
.table-wrapper {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}

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

thead {
  background: var(--surface2);
}

th {
  padding: 10px 14px;
  text-align: left;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.6px;
  color: var(--text-muted);
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}

td {
  padding: 11px 14px;
  border-bottom: 1px solid var(--border);
  color: var(--text);
  vertical-align: middle;
}

tr:last-child td { border-bottom: none; }

tbody tr {
  transition: background var(--transition);
}

tbody tr:hover { background: rgba(255,255,255,0.025); }

.table-actions {
  display: flex;
  gap: 6px;
  align-items: center;
}

.empty-state {
  padding: 40px;
  text-align: center;
  color: var(--text-muted);
}

.empty-state-icon { font-size: 36px; margin-bottom: 12px; }
.empty-state-text { font-size: 15px; }
.empty-state-sub  { font-size: 13px; margin-top: 6px; color: var(--text-dim); }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  cursor: pointer;
  font-size: 14px;
  font-weight: 500;
  line-height: 1;
  transition: background var(--transition), opacity var(--transition), border-color var(--transition);
  white-space: nowrap;
  text-decoration: none;
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.btn-primary {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}
.btn-primary:hover:not(:disabled) {
  background: var(--accent-hover);
  border-color: var(--accent-hover);
}

.btn-danger {
  background: var(--danger);
  color: #fff;
  border-color: var(--danger);
}
.btn-danger:hover:not(:disabled) {
  background: var(--danger-hover);
  border-color: var(--danger-hover);
}

.btn-success {
  background: var(--success);
  color: #000;
  border-color: var(--success);
}
.btn-success:hover:not(:disabled) { filter: brightness(0.9); }

.btn-warning {
  background: var(--warning);
  color: #000;
  border-color: var(--warning);
}
.btn-warning:hover:not(:disabled) { filter: brightness(0.9); }

.btn-outline {
  background: transparent;
  color: var(--text);
  border-color: var(--border2);
}
.btn-outline:hover:not(:disabled) {
  background: var(--surface2);
  border-color: var(--text-muted);
}

.btn-ghost {
  background: transparent;
  color: var(--text-muted);
  border-color: transparent;
}
.btn-ghost:hover:not(:disabled) {
  background: var(--surface2);
  color: var(--text);
}

.btn-sm {
  padding: 5px 10px;
  font-size: 12px;
}

.btn-lg {
  padding: 12px 24px;
  font-size: 16px;
}

.btn-icon {
  padding: 6px;
  border-radius: var(--radius-sm);
}

.btn-loading {
  opacity: 0.7;
  pointer-events: none;
}

/* ---------- Forms ---------- */
.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.form-label {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-muted);
}

.form-label .required { color: var(--danger); margin-left: 2px; }

.form-input,
.form-select,
.form-textarea {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text);
  padding: 9px 12px;
  font-size: 14px;
  transition: border-color var(--transition), box-shadow var(--transition);
  width: 100%;
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.15);
}

.form-input::placeholder { color: var(--text-dim); }

.form-select {
  cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath fill='%2394a3b8' d='M1 1l5 5 5-5'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  padding-right: 36px;
}

.form-textarea { resize: vertical; min-height: 80px; }

.form-error {
  font-size: 12px;
  color: var(--danger);
}

.form-hint {
  font-size: 12px;
  color: var(--text-dim);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

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

.form-check {
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
}

.form-check input[type="checkbox"] {
  width: 16px;
  height: 16px;
  accent-color: var(--accent);
  cursor: pointer;
}

/* ---------- Toggle Switch ---------- */
.toggle {
  position: relative;
  display: inline-block;
  width: 36px;
  height: 20px;
  flex-shrink: 0;
}

.toggle input { opacity: 0; width: 0; height: 0; }

.toggle-slider {
  position: absolute;
  inset: 0;
  background: var(--border2);
  border-radius: 20px;
  cursor: pointer;
  transition: background var(--transition);
}

.toggle-slider::before {
  content: '';
  position: absolute;
  width: 14px;
  height: 14px;
  left: 3px;
  top: 3px;
  background: #fff;
  border-radius: 50%;
  transition: transform var(--transition);
}

.toggle input:checked + .toggle-slider { background: var(--accent); }
.toggle input:checked + .toggle-slider::before { transform: translateX(16px); }

/* ---------- Badges ---------- */
.badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 2px 8px;
  border-radius: 12px;
  font-size: 11px;
  font-weight: 600;
  line-height: 1.4;
  white-space: nowrap;
}

.badge-success  { background: rgba(34, 197, 94, 0.15);  color: var(--success); }
.badge-danger   { background: rgba(239, 68, 68, 0.15);   color: var(--danger); }
.badge-warning  { background: rgba(245, 158, 11, 0.15);  color: var(--warning); }
.badge-info     { background: rgba(6, 182, 212, 0.15);   color: var(--info); }
.badge-secondary{ background: rgba(100, 116, 139, 0.2);  color: var(--text-muted); }
.badge-accent   { background: rgba(59, 130, 246, 0.15);  color: var(--accent); }

/* Health dot */
.health-dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  flex-shrink: 0;
}
.health-dot.healthy   { background: var(--success); box-shadow: 0 0 6px var(--success); }
.health-dot.unhealthy { background: var(--danger);  box-shadow: 0 0 6px var(--danger); }
.health-dot.timeout   { background: var(--warning); box-shadow: 0 0 6px var(--warning); }
.health-dot.unknown   { background: var(--text-dim); }

/* Status indicator */
.status-indicator {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
}

/* ---------- Modal ---------- */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.7);
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  animation: fadeIn 150ms ease;
}

.modal {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  width: 100%;
  max-width: 540px;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: var(--shadow);
  animation: slideUp 200ms ease;
}

.modal-lg { max-width: 720px; }
.modal-sm { max-width: 400px; }

.modal-header {
  padding: 18px 22px 14px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.modal-title {
  font-size: 16px;
  font-weight: 700;
  color: var(--text);
}

.modal-close {
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  padding: 4px;
  font-size: 20px;
  line-height: 1;
  border-radius: var(--radius-sm);
  transition: color var(--transition), background var(--transition);
}
.modal-close:hover { color: var(--text); background: var(--surface2); }

.modal-body {
  padding: 22px;
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.modal-footer {
  padding: 14px 22px 18px;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: flex-end;
  gap: 10px;
}

/* ---------- Alerts / Result Boxes ---------- */
.alert {
  padding: 12px 16px;
  border-radius: var(--radius-sm);
  border: 1px solid;
  font-size: 14px;
  display: flex;
  align-items: flex-start;
  gap: 8px;
}
.alert-success { background: rgba(34,197,94,.1);   border-color: rgba(34,197,94,.3);  color: var(--success); }
.alert-danger  { background: rgba(239,68,68,.1);   border-color: rgba(239,68,68,.3);  color: var(--danger); }
.alert-warning { background: rgba(245,158,11,.1);  border-color: rgba(245,158,11,.3); color: var(--warning); }
.alert-info    { background: rgba(6,182,212,.1);   border-color: rgba(6,182,212,.3);  color: var(--info); }

/* ---------- Toast ---------- */
.toast-container {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 200;
  display: flex;
  flex-direction: column;
  gap: 8px;
  pointer-events: none;
}

.toast {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 12px 18px;
  font-size: 14px;
  color: var(--text);
  box-shadow: var(--shadow);
  max-width: 360px;
  pointer-events: all;
  opacity: 0;
  transform: translateX(20px);
  transition: opacity 250ms ease, transform 250ms ease;
}

.toast.show { opacity: 1; transform: translateX(0); }

.toast-success { border-left: 3px solid var(--success); }
.toast-error   { border-left: 3px solid var(--danger); }
.toast-warning { border-left: 3px solid var(--warning); }
.toast-info    { border-left: 3px solid var(--info); }

/* ---------- Rule Rows (visual forwarding display) ---------- */
.rules-visual {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.rule-row {
  display: flex;
  align-items: center;
  gap: 0;
  padding: 12px 18px;
  border-bottom: 1px solid var(--border);
  background: var(--surface);
  transition: background var(--transition);
}

.rule-row:last-child { border-bottom: none; }
.rule-row:hover { background: var(--surface2); }

.rule-row.pending-row {
  background: rgba(245, 158, 11, 0.06);
  border-left: 3px solid var(--warning);
}

.rule-row.disabled-row { opacity: 0.5; }

.rule-external {
  display: flex;
  align-items: center;
  gap: 8px;
  min-width: 200px;
  flex-shrink: 0;
}

.rule-port {
  font-family: 'Cascadia Code', Consolas, monospace;
  font-size: 15px;
  font-weight: 600;
  color: var(--text);
}

.arrow-connector {
  flex: 1;
  display: flex;
  align-items: center;
  padding: 0 12px;
  color: var(--text-dim);
  gap: 2px;
  min-width: 80px;
}

.arrow-line {
  flex: 1;
  height: 1px;
  background: linear-gradient(90deg, var(--border) 0%, var(--border2) 100%);
  min-width: 20px;
}

.arrow-head { font-size: 16px; color: var(--accent); flex-shrink: 0; }

.rule-internal {
  display: flex;
  align-items: center;
  gap: 8px;
  min-width: 220px;
  flex-shrink: 0;
}

.rule-host-name {
  font-weight: 600;
  color: var(--text);
  font-size: 13px;
}

.rule-dest {
  font-family: 'Cascadia Code', Consolas, monospace;
  font-size: 13px;
  color: var(--text-muted);
}

.rule-actions {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-left: 16px;
  flex-shrink: 0;
}

.rule-meta {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-left: auto;
  padding-left: 12px;
  flex-shrink: 0;
}

.rule-name-label {
  font-size: 12px;
  color: var(--text-dim);
  font-style: italic;
}

/* Protocol badges */
.proto-tcp { background: rgba(59,130,246,.15); color: var(--accent); }
.proto-udp { background: rgba(245,158,11,.15); color: var(--warning); }

/* ---------- Network / NFT pre block ---------- */
.nft-pre {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 16px;
  font-size: 13px;
  overflow-x: auto;
  color: #a5f3fc;
  line-height: 1.6;
  max-height: 500px;
  overflow-y: auto;
}

/* ---------- Info Grid (system info) ---------- */
.info-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 12px;
}

.info-item {
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 12px 14px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.info-item-label {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  font-weight: 700;
  color: var(--text-dim);
}

.info-item-value {
  font-size: 14px;
  font-weight: 600;
  color: var(--text);
  font-family: 'Cascadia Code', Consolas, monospace;
}

/* ---------- Login / Setup pages ---------- */
.auth-page {
  min-height: 100vh;
  background: var(--bg);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.auth-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 40px;
  width: 100%;
  max-width: 400px;
  box-shadow: var(--shadow);
}

.auth-logo {
  text-align: center;
  font-size: 28px;
  font-weight: 800;
  color: var(--text);
  margin-bottom: 8px;
  letter-spacing: -0.5px;
}

.auth-tagline {
  text-align: center;
  font-size: 13px;
  color: var(--text-muted);
  margin-bottom: 32px;
}

.auth-form {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.auth-submit {
  width: 100%;
  justify-content: center;
  padding: 11px;
  font-size: 15px;
}

/* ---------- Pending changes ---------- */
.pending-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.pending-item {
  background: var(--surface2);
  border: 1px solid var(--border);
  border-left: 3px solid var(--warning);
  border-radius: var(--radius-sm);
  padding: 12px 16px;
  display: flex;
  align-items: flex-start;
  gap: 12px;
}

.pending-item-action {
  font-weight: 700;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--warning);
  min-width: 70px;
  flex-shrink: 0;
}

.pending-item-name { font-weight: 600; color: var(--text); }
.pending-item-details { font-size: 13px; color: var(--text-muted); margin-top: 2px; }

.pending-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.no-pending {
  text-align: center;
  padding: 60px 40px;
}

.no-pending-icon { font-size: 48px; margin-bottom: 16px; }
.no-pending-text { font-size: 18px; font-weight: 600; color: var(--text); }
.no-pending-sub  { font-size: 14px; color: var(--text-muted); margin-top: 8px; }

/* ---------- Log Table ---------- */
.log-action-create { color: var(--success); font-weight: 600; }
.log-action-delete { color: var(--danger);  font-weight: 600; }
.log-action-update { color: var(--accent);  font-weight: 600; }
.log-action-login  { color: var(--info);    font-weight: 600; }
.log-result-success{ color: var(--success); }
.log-result-failure{ color: var(--danger); }

.timestamp-cell {
  font-family: 'Cascadia Code', Consolas, monospace;
  font-size: 12px;
  color: var(--text-muted);
  white-space: nowrap;
}

/* ---------- Interface table ---------- */
.iface-up   { color: var(--success); font-weight: 600; }
.iface-down { color: var(--danger);  font-weight: 600; }

/* ---------- Apply result ---------- */
.apply-result {
  padding: 16px 20px;
  border-radius: var(--radius);
  border: 1px solid;
  margin-top: 16px;
}

/* ---------- Loading Spinner ---------- */
.spinner {
  display: inline-block;
  width: 14px;
  height: 14px;
  border: 2px solid rgba(255,255,255,0.3);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}

@keyframes spin    { to { transform: rotate(360deg); } }
@keyframes fadeIn  { from { opacity: 0; }              to { opacity: 1; } }
@keyframes slideUp { from { opacity: 0; transform: translateY(20px); } to { opacity: 1; transform: translateY(0); } }

/* ---------- Utilities ---------- */
.flex       { display: flex; }
.flex-col   { flex-direction: column; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.gap-2 { gap: 8px; }
.gap-3 { gap: 12px; }
.gap-4 { gap: 16px; }
.mt-2 { margin-top: 8px; }
.mt-4 { margin-top: 16px; }
.mt-6 { margin-top: 24px; }
.mb-4 { margin-bottom: 16px; }
.text-muted { color: var(--text-muted); }
.text-sm    { font-size: 13px; }
.text-xs    { font-size: 12px; }
.text-mono  { font-family: 'Cascadia Code', Consolas, monospace; }
.font-bold  { font-weight: 700; }
.w-full     { width: 100%; }
.truncate   { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

/* ---------- Responsive ---------- */
@media (max-width: 900px) {
  :root { --sidebar-w: 200px; }
  .form-row    { grid-template-columns: 1fr; }
  .form-row-3  { grid-template-columns: 1fr; }
  .stat-grid   { grid-template-columns: repeat(2, 1fr); }
  .info-grid   { grid-template-columns: 1fr; }
  .rule-external { min-width: 140px; }
  .rule-internal { min-width: 160px; }
}

@media (max-width: 640px) {
  .sidebar { display: none; }
  .main-content { padding: 16px; }
  .stat-grid { grid-template-columns: 1fr 1fr; }
  .rule-row { flex-wrap: wrap; }
  .table-wrapper { overflow-x: auto; }
}

/* ---------- Scrollbar ---------- */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border2); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--text-dim); }

/* ── System metrics ────────────────────────────────────── */
.metric-bar-bg {
    width: 100%;
    height: 6px;
    background: var(--border);
    border-radius: 999px;
    overflow: hidden;
    margin: 4px 0;
}

.metric-bar {
    height: 100%;
    border-radius: 999px;
    transition: width 0.8s cubic-bezier(0.4, 0, 0.2, 1),
                background 0.5s ease;
    min-width: 2px;
}

@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50%       { opacity: 0.5; transform: scale(0.85); }
}