/* kui — design system (templ + HTMX, no npm) */

:root,
[data-theme="dark"] {
  color-scheme: dark;
  --bg: #09090b;
  --bg-elevated: #111113;
  --surface: #18181b;
  --surface-hover: #1f1f23;
  --border: #27272a;
  --border-subtle: #1e1e22;
  --text: #fafafa;
  --text-muted: #a1a1aa;
  --text-faint: #71717a;
  --accent: #00d4ff;
  --accent-dim: rgba(0, 212, 255, 0.1);
  --accent-glow: rgba(0, 212, 255, 0.35);
  --success: #4ade80;
  --success-dim: rgba(74, 222, 128, 0.08);
  --warning: #fbbf24;
  --danger: #f87171;
  --radius: 10px;
  --radius-sm: 6px;
  --shadow: 0 1px 2px rgba(0, 0, 0, 0.4), 0 8px 24px rgba(0, 0, 0, 0.35);
  --font-sans: "Inter", ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, "SF Mono", "Cascadia Code", monospace;
  --sidebar-w: 240px;
  --header-h: 56px;
  --page-pad-x: 1.5rem;
  --transition: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --chart-grid: rgba(0, 212, 255, 0.08);
  --header-border: rgba(0, 212, 255, 0.2);
  --header-bg: linear-gradient(180deg, rgba(0, 212, 255, 0.06), transparent), var(--bg-elevated);
  --panel-border: rgba(0, 212, 255, 0.22);
  --panel-bg: rgba(8, 12, 18, 0.85);
  --panel-shine: linear-gradient(135deg, rgba(0, 212, 255, 0.04), transparent 40%);
  --panel-inset: inset 0 1px 0 rgba(0, 212, 255, 0.08);
  --panel-glow: 0 0 24px rgba(0, 212, 255, 0.06);
  --kpi-hover-border: rgba(0, 212, 255, 0.45);
  --kpi-hover-glow: 0 0 20px rgba(0, 212, 255, 0.12);
  --modal-backdrop: rgba(0, 0, 0, 0.72);
  --grid-radial: rgba(34, 211, 238, 0.08);
  --logo-text: var(--bg);
  --version-tag-bg: rgba(0, 0, 0, 0.2);
  --btn-primary-bg: #06b6d4;
  --btn-primary-border: #06b6d4;
}

[data-theme="light"] {
  color-scheme: light;
  --bg: #eef2f6;
  --bg-elevated: #ffffff;
  --surface: #f8fafc;
  --surface-hover: #f1f5f9;
  --border: #cbd5e1;
  --border-subtle: #e2e8f0;
  --text: #0f172a;
  --text-muted: #475569;
  --text-faint: #94a3b8;
  --accent: #0891b2;
  --accent-dim: rgba(8, 145, 178, 0.12);
  --accent-glow: rgba(8, 145, 178, 0.28);
  --success: #16a34a;
  --success-dim: rgba(22, 163, 74, 0.12);
  --warning: #d97706;
  --danger: #dc2626;
  --shadow: 0 1px 2px rgba(15, 23, 42, 0.06), 0 8px 24px rgba(15, 23, 42, 0.08);
  --chart-grid: rgba(8, 145, 178, 0.12);
  --header-border: rgba(8, 145, 178, 0.22);
  --header-bg: linear-gradient(180deg, rgba(8, 145, 178, 0.07), transparent), var(--bg-elevated);
  --panel-border: rgba(8, 145, 178, 0.2);
  --panel-bg: rgba(255, 255, 255, 0.94);
  --panel-shine: linear-gradient(135deg, rgba(8, 145, 178, 0.05), transparent 40%);
  --panel-inset: inset 0 1px 0 rgba(8, 145, 178, 0.1);
  --panel-glow: 0 0 24px rgba(8, 145, 178, 0.08);
  --kpi-hover-border: rgba(8, 145, 178, 0.4);
  --kpi-hover-glow: 0 0 20px rgba(8, 145, 178, 0.1);
  --modal-backdrop: rgba(15, 23, 42, 0.4);
  --grid-radial: rgba(8, 145, 178, 0.07);
  --logo-text: #ffffff;
  --version-tag-bg: rgba(255, 255, 255, 0.9);
  --btn-primary-bg: #0891b2;
  --btn-primary-border: #0891b2;
}

*, *::before, *::after { box-sizing: border-box; }

html {
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  margin: 0;
  min-height: 100dvh;
  font-family: var(--font-sans);
  font-size: 14px;
  line-height: 1.5;
  color: var(--text);
  background: var(--bg);
  background-image:
    radial-gradient(ellipse 80% 50% at 50% -20%, var(--grid-radial), transparent),
    linear-gradient(var(--border-subtle) 1px, transparent 1px),
    linear-gradient(90deg, var(--border-subtle) 1px, transparent 1px);
  background-size: 100% 100%, 48px 48px, 48px 48px;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

/* shell */

.app-shell {
  display: grid;
  grid-template-columns: var(--sidebar-w) 1fr;
  min-height: 100dvh;
}

@media (max-width: 768px) {
  .app-shell { grid-template-columns: 1fr; }
  .sidebar { display: none; }
  .mobile-bar { display: flex; }
}

.mobile-bar {
  display: none;
  align-items: center;
  justify-content: space-between;
  padding: 0 1rem;
  height: var(--header-h);
  border-bottom: 1px solid var(--border);
  background: var(--bg-elevated);
}

/* sidebar */

.sidebar {
  display: flex;
  flex-direction: column;
  border-right: 1px solid var(--border);
  background: var(--bg-elevated);
  position: sticky;
  top: 0;
  height: 100dvh;
}

.sidebar-brand {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  padding: 1.25rem 1.25rem 1rem;
  border-bottom: 1px solid var(--border-subtle);
}

.sidebar-logo {
  width: 28px;
  height: 28px;
  border-radius: var(--radius-sm);
  background: linear-gradient(135deg, var(--accent), #0891b2);
  box-shadow: 0 0 20px var(--accent-glow);
  display: grid;
  place-items: center;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  color: var(--logo-text);
}

.sidebar-title {
  font-weight: 600;
  font-size: 15px;
  letter-spacing: -0.02em;
}

.sidebar-subtitle {
  font-size: 11px;
  color: var(--text-faint);
  margin-top: 1px;
}

.sidebar-nav {
  flex: 1;
  padding: 0.75rem;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.nav-link {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  padding: 0.5rem 0.75rem;
  border-radius: var(--radius-sm);
  color: var(--text-muted);
  font-size: 13px;
  font-weight: 500;
  text-decoration: none;
  transition: background var(--transition), color var(--transition);
}

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

.nav-link.active {
  background: var(--accent-dim);
  color: var(--accent);
}

.nav-icon {
  width: 16px;
  height: 16px;
  opacity: 0.7;
}

.sidebar-footer {
  padding: 1rem 1.25rem;
  border-top: 1px solid var(--border-subtle);
}

.user-chip {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.user-email {
  font-size: 12px;
  color: var(--text-muted);
  font-family: var(--font-mono);
  word-break: break-all;
}

/* main */

.main {
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.page {
  flex: 1;
  padding: 1.75rem 2rem 2.5rem;
  max-width: 1200px;
  width: 100%;
}

@media (max-width: 768px) {
  .page { padding: 1.25rem 1rem 2rem; }
}

.page-header {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1.75rem;
}

.page-eyebrow {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 0.375rem;
}

.page-title {
  margin: 0;
  font-size: 1.5rem;
  font-weight: 600;
  letter-spacing: -0.03em;
}

.page-desc {
  margin: 0.25rem 0 0;
  color: var(--text-muted);
  font-size: 13px;
}

/* cards */

.stat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1rem;
  margin-bottom: 1.25rem;
}

.stat-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.125rem 1.25rem;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.stat-card:hover {
  border-color: rgba(34, 211, 238, 0.3);
  box-shadow: 0 0 0 1px var(--accent-dim);
}

.stat-label {
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-faint);
  margin-bottom: 0.5rem;
}

.stat-value {
  font-family: var(--font-mono);
  font-size: 1.75rem;
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--text);
  line-height: 1.2;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

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

.range-meta {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-faint);
}

/* panel */

.panel {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}

.panel-body { padding: 1.5rem; }

/* forms */

.form-group { margin-bottom: 1.125rem; }

.form-label {
  display: block;
  font-size: 12px;
  font-weight: 500;
  color: var(--text-muted);
  margin-bottom: 0.375rem;
}

.form-hint {
  font-size: 12px;
  color: var(--text-faint);
  margin-top: 0.375rem;
}

.form-hint code {
  font-family: var(--font-mono);
  font-size: 11px;
  background: var(--bg);
  padding: 0.1em 0.35em;
  border-radius: 3px;
}

.form-control,
.form-select {
  width: 100%;
  padding: 0.5rem 0.75rem;
  font-family: var(--font-sans);
  font-size: 13px;
  color: var(--text);
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  outline: none;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.form-control:focus,
.form-select:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-dim);
}

.form-control.mono { font-family: var(--font-mono); font-size: 12px; }

.password-field {
  position: relative;
}

.password-field .form-control {
  padding-right: 2.5rem;
}

.password-toggle {
  position: absolute;
  top: 50%;
  right: 0.5rem;
  transform: translateY(-50%);
  display: grid;
  place-items: center;
  width: 1.75rem;
  height: 1.75rem;
  padding: 0;
  border: none;
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--text-faint);
  cursor: pointer;
  transition: color var(--transition), background var(--transition);
}

.password-toggle:hover {
  color: var(--text-muted);
  background: var(--surface-hover);
}

.password-toggle:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 1px;
}

.password-toggle svg {
  width: 16px;
  height: 16px;
}

.password-toggle .icon-hide { display: none; }

.password-toggle[aria-pressed="true"] .icon-show { display: none; }

.password-toggle[aria-pressed="true"] .icon-hide { display: block; }


.form-check {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  cursor: pointer;
  user-select: none;
}

.form-check-input {
  width: 15px;
  height: 15px;
  margin: 0;
  accent-color: var(--accent);
  cursor: pointer;
}

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

.form-plaintext {
  margin: 0;
  padding: 0.5rem 0;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--text);
}

.select-host {
  min-width: 180px;
}

/* buttons */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.375rem;
  padding: 0.5rem 1rem;
  font-family: var(--font-sans);
  font-size: 13px;
  font-weight: 500;
  line-height: 1.4;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  cursor: pointer;
  text-decoration: none;
  transition: background var(--transition), border-color var(--transition), color var(--transition);
}

.btn:hover { text-decoration: none; }

.btn-primary {
  background: var(--accent);
  color: var(--logo-text);
  border-color: var(--accent);
}

.btn-primary:hover {
  background: var(--btn-primary-bg);
  border-color: var(--btn-primary-border);
}

.btn-ghost {
  background: transparent;
  color: var(--text-muted);
  border-color: var(--border);
}

.btn-ghost:hover {
  background: var(--surface-hover);
  color: var(--text);
}

.btn-danger-ghost {
  background: transparent;
  color: var(--danger);
  border-color: rgba(248, 113, 113, 0.3);
}

.btn-danger-ghost:hover {
  background: rgba(248, 113, 113, 0.1);
}

.btn-sm {
  padding: 0.3rem 0.625rem;
  font-size: 12px;
}

.btn-group { display: flex; gap: 0.5rem; flex-wrap: wrap; }

/* alerts */

.alert {
  padding: 0.75rem 1rem;
  border-radius: var(--radius-sm);
  font-size: 13px;
  margin-bottom: 1.25rem;
  border: 1px solid;
}

.alert-warning {
  background: rgba(251, 191, 36, 0.08);
  border-color: rgba(251, 191, 36, 0.25);
  color: var(--warning);
}

.alert-danger {
  background: rgba(248, 113, 113, 0.08);
  border-color: rgba(248, 113, 113, 0.25);
  color: var(--danger);
}

.alert-success {
  background: rgba(34, 197, 94, 0.08);
  border-color: rgba(74, 222, 128, 0.25);
  color: #4ade80;
}

.alert-info {
  background: var(--accent-dim);
  border-color: rgba(34, 211, 238, 0.2);
  color: var(--accent);
}

/* table */

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

table.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}

table.data-table th {
  text-align: left;
  padding: 0.75rem 1.25rem;
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-faint);
  background: var(--bg);
  border-bottom: 1px solid var(--border);
}

table.data-table td {
  padding: 0.875rem 1.25rem;
  border-bottom: 1px solid var(--border-subtle);
  vertical-align: middle;
}

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

table.data-table tr:hover td { background: var(--surface-hover); }

table.data-table .text-end { text-align: right; }

table.data-table .text-muted { color: var(--text-muted); }

table.data-table .text-nowrap { white-space: nowrap; }

/* badges */

.badge {
  display: inline-block;
  padding: 0.15em 0.5em;
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  border-radius: 4px;
}

.badge-admin {
  background: var(--accent-dim);
  color: var(--accent);
  border: 1px solid rgba(34, 211, 238, 0.25);
}

.badge-user {
  background: var(--bg);
  color: var(--text-muted);
  border: 1px solid var(--border);
}

.badge-2fa-on {
  background: rgba(34, 197, 94, 0.12);
  color: #4ade80;
  border: 1px solid rgba(74, 222, 128, 0.25);
}

.badge-2fa-off {
  background: var(--bg);
  color: var(--text-muted);
  border: 1px solid var(--border);
  opacity: 0.85;
}

/* login */

.login-page {
  min-height: 100dvh;
  display: grid;
  place-items: center;
  padding: 1.5rem;
}

.login-card {
  width: 100%;
  max-width: 380px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2rem;
  box-shadow: var(--shadow);
}

.login-card h1 {
  margin: 0 0 0.25rem;
  font-size: 1.25rem;
  font-weight: 600;
  letter-spacing: -0.02em;
}

.login-card .subtitle {
  margin: 0 0 1.5rem;
  font-size: 13px;
  color: var(--text-muted);
}

.login-card .subtitle a { color: var(--accent); }

.w-full { width: 100%; }

.inline-form { display: inline; }

.centered-panel {
  max-width: 640px;
}

.form-page {
  max-width: 640px;
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}

/* ── Gridcn / Tron analytics shell ── */

.grid-shell {
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
}

.uplink-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0 var(--page-pad-x);
  height: 52px;
  border-bottom: 1px solid var(--header-border);
  background: var(--header-bg);
  position: sticky;
  top: 0;
  z-index: 50;
}

.uplink-left,
.uplink-right {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.locale-picker {
  display: inline-flex;
  align-items: center;
  gap: 0.125rem;
  padding: 0.125rem;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--surface);
}

.locale-link {
  display: inline-block;
  padding: 0.2rem 0.45rem;
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--text-muted);
  text-decoration: none;
  border-radius: 999px;
  line-height: 1.2;
  transition: color var(--transition), background var(--transition);
}

.locale-link:hover {
  color: var(--text);
  text-decoration: none;
}

.locale-link.active {
  color: var(--accent);
  background: var(--accent-dim);
  cursor: default;
}

.login-versions .locale-picker {
  margin-right: 0.25rem;
}

.uplink-brand {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  text-decoration: none;
  color: var(--text);
}

.uplink-brand:hover { text-decoration: none; }

.uplink-logo {
  width: 26px;
  height: 26px;
  border-radius: 4px;
  background: linear-gradient(135deg, var(--accent), #0891b2);
  box-shadow: 0 0 16px var(--accent-glow);
  display: grid;
  place-items: center;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  color: var(--logo-text);
}

.uplink-name {
  font-weight: 600;
  font-size: 14px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.uplink-nav {
  display: flex;
  gap: 0.25rem;
  margin-left: 0.5rem;
}

.uplink-link {
  padding: 0.35rem 0.75rem;
  font-size: 12px;
  font-weight: 500;
  color: var(--text-muted);
  text-decoration: none;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  transition: color var(--transition), border-color var(--transition), background var(--transition);
}

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

.uplink-link.active {
  color: var(--accent);
  border-color: rgba(0, 212, 255, 0.35);
  background: var(--accent-dim);
  box-shadow: 0 0 12px rgba(0, 212, 255, 0.15);
}

.uplink-user {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-faint);
}

.version-tags {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
}

.version-tag {
  padding: 0.2em 0.45em;
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.04em;
  color: var(--text-muted);
  border: 1px solid var(--border);
  border-radius: 4px;
  background: var(--version-tag-bg);
  text-decoration: none;
  transition: color var(--transition), border-color var(--transition), background var(--transition);
}

a.version-tag:hover {
  color: var(--accent);
  border-color: var(--accent);
  text-decoration: none;
}

.theme-toggle {
  width: 32px;
  height: 32px;
  padding: 0;
  display: inline-grid;
  place-items: center;
}

.theme-toggle svg {
  width: 16px;
  height: 16px;
}

.theme-toggle .icon-sun { display: none; }

[data-theme="light"] .theme-toggle .icon-moon { display: none; }
[data-theme="light"] .theme-toggle .icon-sun { display: block; }

.login-versions {
  margin-top: 1rem;
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.status-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--success);
}

.status-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--success);
  box-shadow: 0 0 8px var(--success);
  animation: pulse-dot 2s ease-in-out infinite;
}

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

.grid-main {
  flex: 1;
  width: 100%;
  min-width: 0;
}

.analytics-page {
  width: 100%;
  padding: 1.5rem var(--page-pad-x) 2.5rem;
}

.analytics-toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: 1rem 1.5rem;
  margin-bottom: 1.5rem;
}

.analytics-toolbar > :first-child {
  flex: 1 1 auto;
  min-width: min(100%, 220px);
}

.analytics-toolbar > :last-child:not(:first-child) {
  flex: 0 0 auto;
}

.toolbar-filters {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  gap: 0.75rem;
}

.filter-field { min-width: 140px; }

.hud-panel {
  background: var(--panel-bg);
  border: 1px solid var(--panel-border);
  border-radius: var(--radius);
  box-shadow: var(--panel-inset), var(--panel-glow);
  position: relative;
}

.hud-panel::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  pointer-events: none;
  background: var(--panel-shine);
}

.kpi-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 0.875rem;
  margin-bottom: 0.75rem;
}

.kpi-card {
  padding: 1rem 1.125rem;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.kpi-card:hover {
  border-color: var(--kpi-hover-border);
  box-shadow: var(--kpi-hover-glow);
}

.kpi-tag {
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.12em;
  color: var(--accent);
  opacity: 0.85;
  margin-bottom: 0.35rem;
}

.kpi-label {
  font-size: 11px;
  color: var(--text-faint);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 0.25rem;
}

.kpi-value {
  font-family: var(--font-mono);
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--text);
  letter-spacing: -0.02em;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.tab-bar {
  display: flex;
  gap: 0.25rem;
  margin: 1.25rem 0 1rem;
  border-bottom: 1px solid var(--border);
  padding-bottom: 0;
}

.tab-btn {
  padding: 0.5rem 1rem;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-muted);
  background: transparent;
  border: none;
  border-bottom: 2px solid transparent;
  cursor: pointer;
  margin-bottom: -1px;
  transition: color var(--transition), border-color var(--transition);
}

.tab-btn:hover { color: var(--text); }

.tab-btn.active {
  color: var(--accent);
  border-bottom-color: var(--accent);
}

.tab-panel { display: none; }

.tab-panel.active { display: block; }

.chart-grid {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 1rem;
  margin-bottom: 1rem;
}

@media (max-width: 900px) {
  .chart-grid { grid-template-columns: 1fr; }
}

.table-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

@media (max-width: 900px) {
  .table-grid { grid-template-columns: 1fr; }
}

.panel-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.875rem 1.125rem;
  border-bottom: 1px solid rgba(0, 212, 255, 0.12);
}

.panel-label {
  font-size: 13px;
  font-weight: 500;
}

.panel-tag {
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.1em;
  color: var(--accent);
  opacity: 0.7;
}

.chart-panel .chart-wrap {
  padding: 1rem 1.125rem 1.25rem;
  height: 280px;
  position: relative;
}

.chart-wrap-sm { height: 280px; }

.table-panel .table-wrap { padding: 0; }

.empty-row {
  padding: 1.25rem;
  margin: 0;
  color: var(--text-faint);
  font-size: 13px;
}

.mono-cell {
  font-family: var(--font-mono);
  font-size: 12px;
}

@media (max-width: 768px) {
  .uplink-nav { display: none; }
  .uplink-user { display: none; }
  :root { --page-pad-x: 1rem; }
}

/* modal */

.modal {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: grid;
  place-items: center;
  padding: 1.5rem;
}

.modal[hidden] { display: none; }

.modal-backdrop {
  position: absolute;
  inset: 0;
  background: var(--modal-backdrop);
  backdrop-filter: blur(4px);
}

.modal-dialog {
  position: relative;
  width: 100%;
  max-width: 420px;
  z-index: 1;
  animation: modal-in 150ms ease-out;
}

@keyframes modal-in {
  from { opacity: 0; transform: scale(0.96) translateY(8px); }
  to { opacity: 1; transform: scale(1) translateY(0); }
}

.modal-body {
  padding: 1.25rem 1.25rem 0.5rem;
}

.modal-message {
  margin: 0;
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.5;
}

.modal-actions {
  display: flex;
  justify-content: flex-end;
  gap: 0.5rem;
  padding: 1rem 1.25rem 1.25rem;
  border-top: 1px solid rgba(0, 212, 255, 0.12);
}

.modal-actions form { margin: 0; }

body.modal-open { overflow: hidden; }

.qr-image {
  display: block;
  margin: 0 0 1rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
}

.secret-mono {
  font-family: var(--font-mono);
  font-size: 12px;
  word-break: break-all;
  color: var(--accent);
  margin: 0 0 1rem;
}

.twofa-disable-form { margin-top: 1rem; }