:root {
  --bg: #f6f8fb;
  --surface: #ffffff;
  --surface-soft: #f9fbfd;
  --border: #dbe3ef;
  --text: #152033;
  --muted: #60708a;
  --primary: #2f6fed;
  --primary-soft: #e9f0ff;
  --success: #157f46;
  --success-soft: #e9f8ef;
  --warning: #b86d00;
  --warning-soft: #fff3dd;
  --danger: #b42318;
  --danger-soft: #feeceb;
  --shadow: 0 10px 30px rgba(23, 35, 61, 0.04);
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  color: var(--text);
  background: var(--bg);
}
a { color: inherit; text-decoration: none; }
.layout {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 280px minmax(0, 1fr);
}
.sidebar {
  position: sticky;
  top: 0;
  height: 100vh;
  padding: 24px 18px;
  background: var(--surface);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  gap: 22px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 12px;
}
.brand-centered { justify-content: center; margin-bottom: 20px; }
.brand-mark {
  width: 42px;
  height: 42px;
  border-radius: 12px;
  background: var(--primary-soft);
  color: var(--primary);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  letter-spacing: 0.04em;
}
.brand-title { font-size: 18px; font-weight: 700; }
.brand-subtitle, .muted-text, .table-meta, .page-subtitle, .topbar-meta {
  color: var(--muted);
  font-size: 13px;
}
.nav-group { display: grid; gap: 6px; }
.nav-link {
  padding: 11px 12px;
  border-radius: 12px;
  color: var(--muted);
  font-weight: 500;
}
.nav-link:hover { background: var(--surface-soft); color: var(--text); }
.nav-link.is-active {
  background: var(--primary-soft);
  color: var(--primary);
}
.sidebar-footer {
  margin-top: auto;
  display: grid;
  gap: 8px;
  padding-top: 16px;
  border-top: 1px solid var(--border);
}
.small-label {
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--muted);
}
.content-shell { min-width: 0; display: flex; flex-direction: column; }
.topbar {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  padding: 24px 28px 18px;
  background: rgba(246, 248, 251, 0.92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid rgba(219, 227, 239, 0.7);
}
.content {
  padding: 28px;
  display: grid;
  gap: 24px;
}
.page-title, .login-title { margin: 0; font-size: 28px; line-height: 1.1; }
.page-subtitle { margin: 8px 0 0; max-width: 720px; }
.section-title { margin: 0; font-size: 20px; }
.panel {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 18px;
}
.soft-panel { background: var(--surface-soft); }
.stats-grid {
  display: grid;
  gap: 16px;
}
.stats-grid-four { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.stats-grid-three { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.compact-grid { margin-top: 14px; }
.stat-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 18px;
}
.stat-value {
  font-size: 30px;
  font-weight: 700;
  letter-spacing: -0.03em;
}
.stat-label { margin-top: 6px; color: var(--muted); font-size: 13px; }
.grid-two { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); }
.gap-lg { gap: 20px; }
.panel-title-row, .row-between {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}
.align-start { align-items: flex-start; }
.gap-sm { gap: 10px; }
.stack-list, .stack-form, .stack-compact {
  display: grid;
  gap: 12px;
}
.stack-compact { gap: 6px; }
.signal-row, .metric-line {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: center;
}
.small-gap { margin-top: 8px; }
.badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 6px 10px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 700;
  white-space: nowrap;
}
.badge-neutral, .badge-empty { background: #eef2f7; color: #42526b; }
.badge-excellent { background: var(--success-soft); color: var(--success); }
.badge-good { background: var(--primary-soft); color: var(--primary); }
.badge-warning, .badge-violation { background: var(--warning-soft); color: var(--warning); }
.flash, .callout {
  border-radius: 14px;
  padding: 14px 16px;
  border: 1px solid var(--border);
  background: var(--surface);
}
.flash-success { background: var(--success-soft); border-color: #cfead8; color: var(--success); }
.flash-error { background: var(--danger-soft); border-color: #f5cac7; color: var(--danger); }
.flash-info, .callout-info { background: var(--primary-soft); border-color: #cfe0ff; color: #234ea9; }
.callout-warning { background: var(--warning-soft); border-color: #f6ddb2; color: var(--warning); }
.panel-kicker {
  color: var(--muted);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}
.panel-heading { margin-top: 4px; font-size: 18px; font-weight: 700; }
.panel-heading.small { font-size: 15px; }
.panel-text { color: var(--muted); line-height: 1.5; margin: 14px 0; }
.progress {
  margin-top: 14px;
  height: 8px;
  border-radius: 999px;
  background: #e8edf5;
  overflow: hidden;
}
.progress > span {
  display: block;
  height: 100%;
  background: var(--primary);
  border-radius: inherit;
}
.table-wrap {
  overflow-x: auto;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 18px;
}
.data-table {
  width: 100%;
  border-collapse: collapse;
  min-width: 880px;
}
.data-table th,
.data-table td {
  text-align: left;
  padding: 14px 16px;
  border-bottom: 1px solid #edf2f8;
  vertical-align: top;
}
.data-table th {
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--muted);
  background: #fbfcfe;
}
.data-table tr:last-child td { border-bottom: none; }
.filters-grid {
  display: grid;
  grid-template-columns: minmax(240px, 2fr) repeat(2, minmax(180px, 1fr)) auto;
  gap: 14px;
  align-items: end;
}
.filter-actions, .actions-cell, .inline-form, .threshold-form {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  align-items: center;
}
.inline-form { align-items: stretch; }
.threshold-form {
  justify-content: space-between;
  padding: 14px;
  border: 1px solid var(--border);
  border-radius: 16px;
  background: var(--surface-soft);
}
.threshold-actions { margin-left: auto; }
.button {
  appearance: none;
  border: 1px solid transparent;
  border-radius: 12px;
  padding: 10px 14px;
  font: inherit;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  background: var(--surface);
  color: var(--text);
}
.button-primary { background: var(--primary); color: #fff; }
.button-secondary { background: #fff; border-color: var(--border); }
.button-danger { background: var(--danger-soft); color: var(--danger); border-color: #f5cac7; }
.button-small { padding: 8px 10px; font-size: 13px; }
.button-block { width: 100%; }
.input, .select {
  width: 100%;
  padding: 11px 12px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: #fff;
  color: var(--text);
  font: inherit;
}
.input-small, .select-small { width: auto; min-width: 150px; }
.field-label {
  display: block;
  margin-bottom: 6px;
  font-size: 13px;
  color: var(--muted);
}
.text-link { color: var(--primary); font-weight: 600; }
.empty-state {
  padding: 30px;
  background: var(--surface);
  border: 1px dashed var(--border);
  border-radius: 18px;
  text-align: center;
}
.empty-state.compact { padding: 18px; text-align: left; }
.empty-state h2 { margin: 0 0 8px; }
.pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
}
.section-block { margin-top: 4px; }
.zone-list {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-top: 16px;
}
.chip {
  display: inline-flex;
  padding: 7px 10px;
  border-radius: 999px;
  background: #eef3fb;
  color: #35507f;
  font-size: 13px;
}
.login-body {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px;
}
.login-card {
  width: min(100%, 420px);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 24px;
  padding: 28px;
  box-shadow: var(--shadow);
}
@media (max-width: 1080px) {
  .layout { grid-template-columns: 1fr; }
  .sidebar {
    position: relative;
    height: auto;
    border-right: none;
    border-bottom: 1px solid var(--border);
  }
  .grid-two, .stats-grid-four, .stats-grid-three, .filters-grid {
    grid-template-columns: 1fr;
  }
}