:root {
  --bg: #020617;
  --surface: #0E1223;
  --secondary: #1E293B;
  --muted-bg: #1A1E2F;
  --border: #334155;
  --text: #F8FAFC;
  --muted: #94A3B8;
  --accent: #22C55E;
  --accent-text: #0F172A;
  --accent-fg: #4ADE80;
  --danger: #EF4444;
  --danger-fg: #FCA5A5;
  --warning: #F59E0B;
  --warning-fg: #FCD34D;
  --focus: #FFFFFF;
  --radius: 8px;
  --gap: 16px;
  --font: ui-sans-serif, system-ui, "Segoe UI", Roboto, sans-serif;
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  --t: 160ms;
}

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

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.5;
  overflow-x: hidden;
}

h1, h2, h3, p { margin: 0; }
h1 { font-size: 1.25rem; line-height: 1.3; }
h2 { font-size: 1.125rem; line-height: 1.3; }
h3 { font-size: 1rem; line-height: 1.3; margin-bottom: 8px; }

.mono { font-family: var(--mono); font-size: 0.875rem; word-break: break-all; }
.muted { color: var(--muted); }
.meta { font-size: 0.875rem; }

[hidden] { display: none !important; }

.sr-only {
  position: absolute;
  width: 1px; height: 1px;
  margin: -1px; padding: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

:focus { outline: none; }
:focus-visible {
  outline: 2px solid var(--focus);
  outline-offset: 2px;
}
main:focus { outline: none; }

.skip-link {
  position: absolute;
  left: 8px; top: -60px;
  z-index: 100;
  background: var(--accent);
  color: var(--accent-text);
  padding: 10px 14px;
  border-radius: var(--radius);
  font-weight: 600;
}
.skip-link:focus { top: 8px; }

/* Header */
.topbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 12px 16px;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
}
.brand { min-width: 0; }
.brand h1 { overflow-wrap: anywhere; }
.top-actions { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }

main {
  max-width: 1280px;
  margin: 0 auto;
  padding: 16px;
  display: block;
}
#appView { display: flex; flex-direction: column; gap: var(--gap); }
#appView[hidden] { display: none; }

/* Panels */
.panel {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  min-width: 0;
}
.panel > h2 { margin-bottom: 12px; }
.panel-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 12px;
}
.panel-head h2 { margin: 0; }

.login { max-width: 440px; margin: 32px auto; }
.login form { margin-top: 16px; display: flex; flex-direction: column; gap: 12px; }

/* Banners */
.banners { display: flex; flex-direction: column; gap: 8px; }
.banners:empty { display: none; }
.banner {
  border: 1px solid;
  border-radius: var(--radius);
  padding: 12px 16px;
  background: var(--muted-bg);
}
.banner strong { display: inline; }
.banner ul { margin: 8px 0 0; padding-left: 20px; }
.banner-warning { border-color: var(--warning); }
.banner-warning strong { color: var(--warning-fg); }
.banner-danger { border-color: var(--danger); }
.banner-danger strong { color: var(--danger-fg); }

/* Summary cards */
.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 12px;
}
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 12px 16px;
  min-width: 0;
}
.card-label { color: var(--muted); font-size: 0.875rem; }
.card-value { font-size: 1.5rem; font-weight: 700; line-height: 1.3; overflow-wrap: anywhere; }
.card-note { color: var(--muted); font-size: 0.8125rem; margin-top: 4px; overflow-wrap: anywhere; }

/* Layout */
.layout { display: grid; grid-template-columns: minmax(0, 1fr); gap: var(--gap); align-items: start; }
@media (min-width: 900px) {
  .layout { grid-template-columns: minmax(300px, 380px) minmax(0, 1fr); }
  .groups-panel { position: sticky; top: 16px; max-height: calc(100vh - 32px); overflow-y: auto; }
}

/* Group list */
.group-list { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 8px; }
.group-item {
  display: block;
  width: 100%;
  min-height: 44px;
  text-align: left;
  font: inherit;
  color: var(--text);
  background: var(--muted-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 10px 12px;
  cursor: pointer;
  transition: border-color var(--t) ease, background-color var(--t) ease;
}
.group-item:hover { border-color: var(--muted); }
.group-item[aria-current="true"] {
  border-color: var(--accent);
  background: var(--secondary);
  box-shadow: inset 3px 0 0 var(--accent);
}
.group-name { display: block; font-weight: 600; overflow-wrap: anywhere; }
.group-id { display: block; color: var(--muted); margin-top: 2px; }
.group-stats { display: block; color: var(--muted); font-size: 0.8125rem; margin-top: 6px; }
.badges { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 8px; }

/* Badges (text carries the meaning, color is secondary) */
.badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--secondary);
  color: #E2E8F0;
  font-size: 0.8125rem;
  line-height: 1.5;
  white-space: nowrap;
}
.badge-ok { border-color: var(--accent); background: rgba(34, 197, 94, 0.14); color: var(--accent-fg); }
.badge-bad { border-color: var(--danger); background: rgba(239, 68, 68, 0.14); color: var(--danger-fg); }
.badge-warn { border-color: var(--warning); background: rgba(245, 158, 11, 0.14); color: var(--warning-fg); }
.badge-off { color: var(--muted); }

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  min-width: 44px;
  padding: 8px 16px;
  font: inherit;
  font-weight: 600;
  color: var(--text);
  background: var(--secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  cursor: pointer;
  transition: background-color var(--t) ease, border-color var(--t) ease;
}
.btn:hover:not(:disabled) { border-color: var(--muted); background: #263449; }
.btn:disabled { opacity: 0.55; cursor: not-allowed; }
.btn-primary { background: var(--accent); border-color: var(--accent); color: var(--accent-text); }
.btn-primary:hover:not(:disabled) { background: #4ADE80; border-color: #4ADE80; }
.btn-danger { background: transparent; border-color: var(--danger); color: var(--danger-fg); }
.btn-danger:hover:not(:disabled) { background: rgba(239, 68, 68, 0.18); border-color: var(--danger); }
.btn-warn { background: transparent; border-color: var(--warning); color: var(--warning-fg); }
.btn-warn:hover:not(:disabled) { background: rgba(245, 158, 11, 0.18); border-color: var(--warning); }

/* Forms */
.field { display: flex; flex-direction: column; gap: 6px; min-width: 0; }
.field label { font-weight: 600; font-size: 0.9375rem; }
.hint { color: var(--muted); font-size: 0.8125rem; }
.input, .textarea {
  width: 100%;
  min-height: 44px;
  padding: 10px 12px;
  font: inherit;
  color: var(--text);
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}
.input::placeholder, .textarea::placeholder { color: var(--muted); }
.input:hover, .textarea:hover { border-color: var(--muted); }
.textarea { resize: vertical; min-height: 120px; font-family: var(--mono); font-size: 0.875rem; }
.form-error { color: var(--danger-fg); border-left: 3px solid var(--danger); padding-left: 10px; }
.form-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 12px; }
.form-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; margin-top: 8px; }
.counter { color: var(--muted); font-size: 0.8125rem; margin-left: auto; }
.counter.over { color: var(--danger-fg); }

/* Detail */
.detail-section { border-top: 1px solid var(--border); padding-top: 16px; margin-top: 16px; }
.detail-section:first-of-type { border-top: 0; padding-top: 0; margin-top: 0; }
.detail-head { margin-bottom: 16px; }
.detail-head .name { font-size: 1.125rem; font-weight: 700; overflow-wrap: anywhere; }

/* Switches */
.switch-list { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 8px; }
.switch {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  width: 100%;
  min-height: 44px;
  padding: 8px 12px;
  font: inherit;
  text-align: left;
  color: var(--text);
  background: var(--muted-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  cursor: pointer;
}
.switch:hover:not(:disabled) { border-color: var(--muted); }
.switch:disabled { opacity: 0.55; cursor: not-allowed; }
.switch-label { min-width: 0; overflow-wrap: anywhere; }
.switch-side { display: inline-flex; align-items: center; gap: 8px; flex-shrink: 0; }
.switch-state { font-size: 0.8125rem; font-weight: 700; min-width: 2.2em; text-align: right; color: var(--muted); }
.switch[aria-checked="true"] .switch-state { color: var(--accent-fg); }
.switch-track {
  position: relative;
  width: 44px; height: 24px;
  border-radius: 999px;
  background: var(--secondary);
  border: 1px solid var(--muted);
  transition: background-color var(--t) ease;
}
.switch-track::after {
  content: "";
  position: absolute;
  top: 2px; left: 2px;
  width: 18px; height: 18px;
  border-radius: 50%;
  background: var(--text);
  transition: transform var(--t) ease;
}
.switch[aria-checked="true"] .switch-track { background: var(--accent); border-color: var(--accent); }
.switch[aria-checked="true"] .switch-track::after { transform: translateX(20px); background: var(--accent-text); }

/* Tables */
.table-wrap { overflow-x: auto; border: 1px solid var(--border); border-radius: var(--radius); }
.table-wrap:focus-visible { outline-offset: 0; }
table { width: 100%; border-collapse: collapse; font-size: 0.875rem; }
caption { text-align: left; padding: 8px 12px; color: var(--muted); font-size: 0.8125rem; }
th, td { text-align: left; padding: 8px 12px; border-bottom: 1px solid var(--border); vertical-align: top; }
th { background: var(--muted-bg); font-weight: 600; white-space: nowrap; }
tbody tr:last-child td, tbody tr:last-child th { border-bottom: 0; }
td.wrap { overflow-wrap: anywhere; min-width: 140px; }
td.nowrap, th.nowrap { white-space: nowrap; }
td .btn { min-height: 44px; }

.report {
  margin: 8px 0 0;
  padding: 12px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-family: var(--mono);
  font-size: 0.8125rem;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
  max-height: 420px;
  overflow: auto;
}

.empty { color: var(--muted); padding: 8px 0; }

/* Toasts */
.toasts {
  position: fixed;
  right: 16px; bottom: 16px; left: 16px;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 8px;
  z-index: 50;
  pointer-events: none;
}
.toast {
  pointer-events: auto;
  display: flex;
  align-items: center;
  gap: 12px;
  max-width: min(480px, 100%);
  padding: 10px 14px;
  background: var(--secondary);
  color: var(--text);
  border: 1px solid var(--border);
  border-left-width: 4px;
  border-radius: var(--radius);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.6);
  overflow-wrap: anywhere;
}
.toast-ok { border-left-color: var(--accent); }
.toast-error { border-left-color: var(--danger); }
.toast .btn { min-height: 44px; padding: 4px 12px; flex-shrink: 0; }

@media (prefers-reduced-motion: no-preference) {
  .toast { animation: toast-in var(--t) ease-out; }
  @keyframes toast-in { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: none; } }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; scroll-behavior: auto !important; }
}

@media (max-width: 480px) {
  main { padding: 12px; }
  .topbar { padding: 10px 12px; }
  .panel { padding: 12px; }
  .btn { padding: 8px 12px; }
}