:root {
  color-scheme: light dark;
  --bg: #f8fafc;
  --surface: #ffffff;
  --surface-2: #f1f5f9;
  --border: #e2e8f0;
  --border-strong: #cbd5e1;
  --text: #0f172a;
  --muted: #64748b;
  --accent: #2563eb;
  --accent-weak: #eff6ff;
  --positive: #15803d;
  --negative: #b91c1c;
  --radius: 10px;
  --shadow: 0 1px 2px rgba(15, 23, 42, 0.05);
  --chart-line: #2563eb;
  --chart-fill: rgba(37, 99, 235, 0.12);
  --chart-grid: rgba(148, 163, 184, 0.22);
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0b1220;
    --surface: #111a2b;
    --surface-2: #182338;
    --border: #24324a;
    --border-strong: #33445f;
    --text: #e8eef8;
    --muted: #93a3ba;
    --accent: #60a5fa;
    --accent-weak: rgba(96, 165, 250, 0.14);
    --positive: #4ade80;
    --negative: #f87171;
    --shadow: 0 1px 2px rgba(0, 0, 0, 0.3);
    --chart-line: #60a5fa;
    --chart-fill: rgba(96, 165, 250, 0.16);
    --chart-grid: rgba(148, 163, 184, 0.16);
  }
}

* { box-sizing: border-box; }

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

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 14px/1.45 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
  overflow-x: clip;
}

button, input, select { font: inherit; color: inherit; }
a { color: var(--accent); }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 4px; }
[hidden] { display: none !important; }

.muted { color: var(--muted); }

/* Buttons and controls */
.button {
  border: 1px solid transparent;
  border-radius: 8px;
  padding: 7px 12px;
  cursor: pointer;
  background: var(--surface);
  color: var(--text);
  white-space: nowrap;
}
.button:hover { border-color: var(--border-strong); }
.button:disabled { opacity: 0.55; cursor: not-allowed; }
.button-primary { background: var(--accent); color: #fff; }
.button-primary:hover { border-color: var(--accent); filter: brightness(1.05); }
.button-secondary { border-color: var(--border-strong); }
.button-ghost { background: transparent; color: var(--muted); }
.button-ghost:hover { color: var(--text); }
.link-button { background: none; border: 0; padding: 0; color: var(--accent); cursor: pointer; font-size: 12px; }

/* Login */
.login-view { min-height: 100vh; display: grid; place-items: center; padding: 24px; }
.login-card {
  width: 100%;
  max-width: 380px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 28px;
  box-shadow: 0 12px 32px rgba(15, 23, 42, 0.08);
  display: grid;
  gap: 14px;
}
.login-title { margin: 0; font-size: 20px; }
.form-error { color: var(--negative); font-size: 13px; min-height: 1.2em; margin: 0; }

/* Header */
.app-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
}
.header-top {
  display: flex;
  align-items: end;
  gap: 16px;
  flex-wrap: wrap;
  max-width: 1560px;
  margin: 0 auto;
  padding: 10px 20px 8px;
}
.header-brand { flex: 0 0 auto; display: flex; align-items: center; padding-bottom: 4px; }
.brand { font-size: 15px; font-weight: 700; letter-spacing: -0.01em; }
.header-controls { display: flex; align-items: end; gap: 12px; flex: 1 1 auto; flex-wrap: wrap; min-width: 0; }
.header-account { margin-left: auto; display: flex; align-items: center; gap: 10px; min-width: 0; }
.account-email { color: var(--muted); max-width: 220px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

.control { display: flex; flex-direction: column; gap: 3px; min-width: 0; }
.control-label { font-size: 11px; color: var(--muted); text-transform: uppercase; letter-spacing: 0.05em; }
.control select,
.control input {
  background: var(--bg);
  border: 1px solid var(--border-strong);
  border-radius: 8px;
  padding: 7px 9px;
  max-width: 260px;
  min-width: 0;
}
.control-site select { min-width: 190px; max-width: 340px; font-weight: 600; }
.custom-range { display: flex; align-items: center; gap: 6px; padding-bottom: 1px; }
.custom-range input { background: var(--bg); border: 1px solid var(--border-strong); border-radius: 8px; padding: 6px 8px; }
.range-sep { color: var(--muted); }

.tabs {
  display: flex;
  gap: 2px;
  max-width: 1560px;
  margin: 0 auto;
  padding: 0 20px;
  overflow-x: auto;
  scrollbar-width: none;
}
.tabs::-webkit-scrollbar { display: none; }
.tab {
  appearance: none;
  background: none;
  border: 0;
  border-bottom: 2px solid transparent;
  padding: 9px 12px;
  color: var(--muted);
  cursor: pointer;
  white-space: nowrap;
}
.tab:hover { color: var(--text); }
.tab[aria-selected="true"] { color: var(--text); border-bottom-color: var(--accent); font-weight: 600; }

.banner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 10px 20px;
  background: #fef2f2;
  color: #7f1d1d;
  border-bottom: 1px solid #fecaca;
  font-size: 13px;
}
@media (prefers-color-scheme: dark) {
  .banner { background: #3f1414; color: #fecaca; border-bottom-color: #7f1d1d; }
}

.app-main { max-width: 1560px; margin: 0 auto; padding: 20px; min-width: 0; }

/* Cards */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  min-width: 0;
  margin-bottom: 16px;
}
.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  padding: 12px 16px;
  border-bottom: 1px solid var(--border);
  min-width: 0;
}
.card-title { margin: 0; font-size: 13px; font-weight: 600; letter-spacing: 0.01em; }
.card-body { padding: 14px 16px; min-width: 0; }

/* KPI */
.kpi-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
  margin-bottom: 16px;
}
.kpi {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 14px 16px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  min-width: 0;
}
.kpi-label {
  font-size: 11px;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.kpi-value {
  font-size: 26px;
  font-weight: 650;
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.kpi-delta { font-size: 12px; font-variant-numeric: tabular-nums; }
.kpi-delta.is-up { color: var(--positive); }
.kpi-delta.is-down { color: var(--negative); }
.kpi-delta.is-flat, .kpi-delta.is-muted { color: var(--muted); }

/* Charts */
.chart-card { overflow: hidden; }
.chart-holder { position: relative; height: 300px; padding: 10px 16px 4px; min-width: 0; }
.chart-holder-sm { height: 190px; padding: 0; }
.chart-data { border-top: 1px solid var(--border); padding: 8px 16px 12px; }
.chart-data summary { cursor: pointer; color: var(--muted); font-size: 12px; }
.chart-data .table-wrap { margin-top: 10px; }

.segmented { display: inline-flex; border: 1px solid var(--border-strong); border-radius: 8px; overflow: hidden; }
.segment { border: 0; background: transparent; padding: 5px 10px; cursor: pointer; font-size: 12px; color: var(--muted); }
.segment[aria-pressed="true"] { background: var(--accent-weak); color: var(--accent); font-weight: 600; }

/* Overview grid */
.overview-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }
.overview-grid .card { margin-bottom: 0; }
.two-col { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }
.two-col .card { margin-bottom: 0; }
.device-layout { display: grid; grid-template-columns: minmax(140px, 0.8fr) minmax(0, 1fr); gap: 14px; align-items: center; }

/* Bars */
.bars { display: flex; flex-direction: column; gap: 1px; min-width: 0; }
.bar-row {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(50px, 1fr) auto auto;
  align-items: center;
  gap: 10px;
  padding: 5px 0;
  min-width: 0;
}
.bar-row.is-selectable { cursor: pointer; border-radius: 6px; }
.bar-row.is-selectable:hover, .bar-row.is-selectable:focus-visible { background: var(--surface-2); }
.bar-label { min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.bar-track { height: 8px; background: var(--surface-2); border-radius: 999px; overflow: hidden; min-width: 0; }
.bar-fill { display: block; height: 100%; background: var(--accent); opacity: 0.7; border-radius: 999px; }
.bar-value { font-size: 12.5px; font-variant-numeric: tabular-nums; }
.bar-secondary { font-size: 12px; color: var(--muted); font-variant-numeric: tabular-nums; }
.bars-section + .bars-section { margin-top: 10px; }
.bars-heading { margin: 10px 0 4px; font-size: 11px; color: var(--muted); text-transform: uppercase; letter-spacing: 0.05em; }

/* Tables */
.table-wrap { overflow-x: auto; min-width: 0; }
.data-table { width: 100%; border-collapse: collapse; font-size: 13px; table-layout: fixed; }
.data-table th, .data-table td {
  text-align: left;
  padding: 7px 10px;
  border-bottom: 1px solid var(--border);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  min-width: 0;
}
.data-table th { color: var(--muted); font-weight: 500; font-size: 12px; }
.data-table tbody tr:last-child td { border-bottom: 0; }
.data-table .num { text-align: right; font-variant-numeric: tabular-nums; }
.col-time { width: 132px; }
.col-name { width: 120px; }
.col-ref { width: 140px; }
.col-device { width: 140px; }
.col-num { width: 92px; }
.col-share { width: 140px; }
.table-note { margin: 8px 2px 0; font-size: 12px; color: var(--muted); }

.share-cell { display: flex; align-items: center; justify-content: flex-end; gap: 8px; }
.share-track { width: 70px; height: 6px; background: var(--surface-2); border-radius: 999px; overflow: hidden; }
.share-fill { display: block; height: 100%; background: var(--accent); opacity: 0.7; }
.share-value { color: var(--muted); font-variant-numeric: tabular-nums; min-width: 44px; text-align: right; }

/* States */
.state-block { padding: 26px 16px; text-align: center; color: var(--muted); }
.state-title { color: var(--text); font-weight: 600; margin: 0 0 6px; }
.state-message { margin: 0 0 14px; }
.state-error { color: var(--negative); }
.state-error p { margin: 0 0 12px; }

/* Skeletons */
.skeleton {
  background: linear-gradient(90deg, var(--surface-2) 25%, var(--border) 37%, var(--surface-2) 63%);
  background-size: 200% 100%;
  animation: shimmer 1.4s linear infinite;
  border-radius: 6px;
}
.skeleton-row { height: 14px; margin: 10px 0; }
.skeleton-kpi { height: 94px; border-radius: var(--radius); }
.skeleton-chart { height: 300px; border-radius: 8px; }
@keyframes shimmer { from { background-position: 200% 0; } to { background-position: -200% 0; } }
@media (prefers-reduced-motion: reduce) { .skeleton { animation: none; } }

/* Settings */
.settings-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; align-items: start; }
.settings-grid .card { margin-bottom: 0; }
.form-grid { display: grid; gap: 12px; }
.inline-form { display: flex; gap: 12px; align-items: end; flex-wrap: wrap; margin-top: 12px; }
.field { display: flex; flex-direction: column; gap: 4px; font-size: 12px; color: var(--muted); min-width: 0; }
.field input, .field select {
  background: var(--bg);
  border: 1px solid var(--border-strong);
  border-radius: 8px;
  padding: 7px 9px;
  color: var(--text);
  min-width: 0;
  max-width: 100%;
}
.field-check { flex-direction: row; align-items: center; gap: 8px; color: var(--text); font-size: 13px; }
.field-check input { width: auto; }
.form-actions { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
.form-note { font-size: 12px; color: var(--muted); min-height: 1em; margin: 0; }
.form-note.is-error { color: var(--negative); }
.form-note.is-ok { color: var(--positive); }
.snippet {
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 10px;
  margin: 8px 0 12px;
  font: 12px/1.5 ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
}
.domain-list, .member-list { display: flex; flex-direction: column; min-width: 0; }
.list-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto auto auto;
  align-items: center;
  gap: 10px;
  padding: 8px 0;
  border-bottom: 1px solid var(--border);
  min-width: 0;
}
.list-row:last-child { border-bottom: 0; }
.list-row .list-name { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; min-width: 0; }
.badge {
  font-size: 11px;
  padding: 2px 7px;
  border-radius: 999px;
  background: var(--surface-2);
  color: var(--muted);
  white-space: nowrap;
}
.badge.is-primary { background: var(--accent-weak); color: var(--accent); }
.badge.is-off { background: transparent; border: 1px solid var(--border-strong); }
.role-note {
  margin-bottom: 14px;
  padding: 9px 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--surface-2);
  color: var(--muted);
  font-size: 12.5px;
}

/* Dialog */
.dialog {
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 0;
  background: var(--surface);
  color: var(--text);
  width: min(430px, calc(100vw - 32px));
  box-shadow: 0 24px 60px rgba(15, 23, 42, 0.24);
}
.dialog::backdrop { background: rgba(15, 23, 42, 0.45); }
.dialog-form { padding: 20px; display: grid; gap: 12px; }

/* Responsive */
@media (max-width: 1100px) {
  .kpi-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 900px) {
  .overview-grid, .two-col, .settings-grid { grid-template-columns: minmax(0, 1fr); }
}
@media (max-width: 640px) {
  .app-main { padding: 14px; }
  .header-top { padding: 10px 14px 8px; gap: 10px; }
  .tabs { padding: 0 14px; }
  .header-controls { width: 100%; }
  .control, .control-site { flex: 1 1 140px; }
  .control select, .control-site select { max-width: none; width: 100%; }
  .header-account { width: 100%; justify-content: flex-end; }
  .account-email { max-width: 140px; }
  .bar-row { grid-template-columns: minmax(0, 1fr) auto auto; }
  .bar-track { display: none; }
  .device-layout { grid-template-columns: minmax(0, 1fr); }
}
@media (max-width: 560px) {
  .kpi-grid { grid-template-columns: minmax(0, 1fr); }
}