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

body {
  margin: 0;
  font-family: var(--font-ui);
  font-size: var(--text-md);
  line-height: 1.5;
  color: var(--color-text);
  background: var(--color-ground);
}

a { color: var(--color-accent); }
a:hover { color: var(--color-accent-strong); }

:focus-visible {
  outline: 3px solid var(--color-focus);
  outline-offset: 2px;
}

.skip-link {
  position: absolute;
  left: var(--space-2);
  top: -100px;
  padding: var(--space-2) var(--space-4);
  background: var(--color-surface);
  z-index: 10;
}
.skip-link:focus { top: var(--space-2); }

/* Shell: navy sidebar + content. Public pages (sign in) have no sidebar. */
.shell {
  display: grid;
  grid-template-columns: var(--sidebar-width) minmax(0, 1fr);
  min-height: 100vh;
}
.shell--public { grid-template-columns: minmax(0, 1fr); }

.sidebar {
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
  padding: var(--space-5) var(--space-4);
  background: var(--color-sidebar);
  color: var(--color-sidebar-text);
}
.sidebar :focus-visible { outline-color: var(--color-sidebar-text); }
.sidebar a { color: var(--color-sidebar-text); }

.brand {
  display: inline-flex;
  align-items: center;
  min-height: var(--touch-target);
  font-weight: 700;
  font-size: var(--text-lg);
  text-decoration: none;
}

.nav ul { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: var(--space-1); }
.nav a {
  display: flex;
  align-items: center;
  min-height: var(--touch-target);
  padding: 0 var(--space-3);
  border-radius: var(--radius-sm);
  text-decoration: none;
  color: var(--color-sidebar-muted);
}
.nav a:hover { color: var(--color-sidebar-text); background: var(--color-sidebar-active); }
.nav a[aria-current="page"] {
  color: var(--color-sidebar-text);
  background: var(--color-sidebar-active);
  font-weight: 600;
}

.sidebar-user {
  margin-top: auto;
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  padding-top: var(--space-4);
  border-top: 1px solid var(--color-sidebar-active);
  font-size: var(--text-sm);
}
.sidebar-user__email { overflow-wrap: anywhere; }
.sidebar-user__role { color: var(--color-sidebar-muted); }
.sidebar-user form { margin-top: var(--space-2); }

main {
  width: 100%;
  max-width: 1200px;
  padding: var(--space-6) var(--space-5);
}
.shell--public main { margin: 0 auto; }

h1 { font-size: var(--text-xl); margin: 0 0 var(--space-5); }

.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-5);
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: var(--touch-target);
  min-width: var(--touch-target);
  padding: 0 var(--space-4);
  border: 1px solid var(--color-accent);
  border-radius: var(--radius-sm);
  background: var(--color-accent);
  color: #fff;
  font: inherit;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
}
.button:hover { background: var(--color-accent-strong); color: #fff; }
.button--sidebar {
  width: 100%;
  background: transparent;
  border-color: var(--color-sidebar-muted);
  color: var(--color-sidebar-text);
}
.button--sidebar:hover { background: var(--color-sidebar-active); }

.field { display: flex; flex-direction: column; gap: var(--space-1); margin-bottom: var(--space-4); }
.field label { font-weight: 600; }
.field input {
  min-height: var(--touch-target);
  padding: 0 var(--space-3);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font: inherit;
}
.field-error { color: var(--color-severity-high); font-size: var(--text-sm); }

.error-summary {
  border: 2px solid var(--color-severity-high);
  background: var(--color-severity-high-soft);
  border-radius: var(--radius-sm);
  padding: var(--space-3) var(--space-4);
  margin-bottom: var(--space-4);
}
.error-summary h2 { font-size: var(--text-md); margin: 0 0 var(--space-2); }
.error-summary ul { margin: 0; padding-left: var(--space-5); }

.auth-card { max-width: 420px; margin: var(--space-5) auto var(--space-7); }
.auth-brand { display: flex; justify-content: center; color: var(--color-sidebar); margin: var(--space-7) 0 0; }

/* Dense data tables: 13 px, shaded header, alternating rows. */
.table-scroll {
  overflow-x: auto;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
}
table { width: 100%; border-collapse: collapse; background: var(--color-surface); font-size: var(--text-table); }
th, td { text-align: left; padding: var(--space-2) var(--space-3); border-bottom: 1px solid var(--color-border); }
thead th { background: var(--color-table-header); color: var(--color-text-muted); font-weight: 600; }
tbody tr:nth-child(even) { background: var(--color-table-stripe); }
tbody tr:last-child td { border-bottom: 0; }
.figure, .code { font-family: var(--font-figures); }
.figure { font-variant-numeric: tabular-nums; text-align: right; }

.empty-state { color: var(--color-text-muted); margin: 0; }

.error-page { max-width: 640px; }
.reference { font-family: var(--font-figures); color: var(--color-text-muted); font-size: var(--text-sm); }

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

/* Narrow screens (down to 390 px): the sidebar becomes a bar above the content. */
@media (max-width: 768px) {
  .shell { grid-template-columns: minmax(0, 1fr); grid-template-rows: auto 1fr; }
  .sidebar { flex-direction: row; flex-wrap: wrap; align-items: center; gap: var(--space-3); padding: var(--space-3); }
  .nav ul { flex-direction: row; flex-wrap: wrap; }
  .sidebar-user {
    flex-direction: row;
    flex-wrap: wrap;
    align-items: center;
    gap: var(--space-1) var(--space-3);
    width: 100%;
    margin-top: 0;
    padding-top: var(--space-2);
  }
  .sidebar-user form { margin: 0 0 0 auto; }
  .button--sidebar { width: auto; }
  main { padding: var(--space-5) var(--space-3); }
}

/* Upload & parse (M3) */
.page-header { display: flex; flex-direction: column; gap: 6px; margin-bottom: 24px; }
.page-header h1 { margin: 0; }
.breadcrumb { margin: 0; font-size: 13px; color: var(--text-muted, #475467); }
.lede { margin: 0; max-width: 680px; color: var(--text-muted, #475467); line-height: 1.5; }
.muted { color: var(--text-muted, #475467); font-weight: 400; }
.notice { padding: 12px 16px; border-radius: 6px; background: #ECFDF3; color: #067647; margin: 0 0 16px; }
.upload-form { display: flex; flex-wrap: wrap; gap: 16px; align-items: flex-end; }
.upload-form .field { flex: 1 1 220px; margin: 0; }
.upload-form select { height: 44px; width: 100%; border: 1px solid #D0D5DD; border-radius: 6px; padding: 0 12px; font: inherit; background: #fff; }
.slot-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 16px; margin: 24px 0; }
.slot { border: 1.5px dashed #98A2B3; border-radius: 12px; padding: 24px; background: #FCFCFD; display: flex; flex-direction: column; gap: 8px; }
.slot p { margin: 0; }
.slot__label { font-size: 12px; font-weight: 600; color: #475467; text-transform: uppercase; letter-spacing: 0.04em; }
.slot__period { font-size: 16px; font-weight: 600; }
.slot__file { font-size: 13px; color: #475467; }
.card--flush { padding: 0; overflow: hidden; }
.card--flush .empty-state { padding: 20px 24px; }
.card__header { padding: 16px 20px; border-bottom: 1px solid #DDE3EC; display: flex; flex-wrap: wrap; gap: 12px; justify-content: space-between; align-items: center; }
.card__header h2 { margin: 0; font-size: 16px; }
.badge { display: inline-block; padding: 4px 10px; border-radius: 999px; background: #F2F4F7; color: #344054; font-size: 12px; font-weight: 600; }
.badge--ok { background: #ECFDF3; color: #067647; }
.badge--warn { background: #FFFAEB; color: #93370D; }
.badge--error { background: #FEF3F2; color: #B42318; }
.problems { margin: 6px 0 0; padding-left: 18px; font-size: 12px; color: #B42318; }

/* Entity review (M4) */
.page-header--actions { flex-direction: row; flex-wrap: wrap; justify-content: space-between; align-items: flex-end; }
.actions { display: flex; flex-wrap: wrap; gap: 12px; }
.actions form { margin: 0; }
.button--secondary { background: #fff; color: #344054; border: 1px solid #D0D5DD; }
.notice--info { background: #EFF4FF; color: #1F4E9C; }
.num { text-align: right; }
.line-label { font-weight: 500; }
.badge--changed { background: #FFFAEB; color: #93370D; }
.badge--appeared, .badge--disappeared { background: #EFF4FF; color: #1F4E9C; }
.card + .card, .card--flush { margin-bottom: 24px; }
.actions--end { justify-content: flex-end; }
.row-actions { display: flex; gap: 16px; }

/* Flags (M5) */
.review-grid { display: flex; flex-wrap: wrap; gap: 24px; align-items: flex-start; }
.review-main { flex: 999 1 560px; min-width: 0; }
.flag-detail { flex: 1 1 340px; min-width: 0; display: flex; flex-direction: column; gap: 8px; }
.flag-detail h2 { margin: 0; font-size: 19px; }
.flag-detail h3 { margin: 12px 0 0; font-size: 12px; text-transform: uppercase; letter-spacing: 0.04em; color: #475467; }
.flag-detail form { margin: 0; }
.flag-list { list-style: none; margin: 0; padding: 0; }
.flag-row { display: flex; gap: 16px; align-items: center; min-height: 56px; padding: 10px 16px; border-top: 1px solid #E9EDF3; color: inherit; text-decoration: none; }
.flag-row--selected { background: #EFF4FF; }
.flag-row__text { flex: 1 1 auto; min-width: 0; }
.flag-row__title { font-weight: 600; }
.severity { width: 72px; flex-shrink: 0; display: inline-block; padding: 3px 8px; border-radius: 6px; font-size: 12px; font-weight: 600; text-align: center; }
.severity--high { background: #FEF3F2; color: #B42318; }
.severity--medium { background: #FFFAEB; color: #93370D; }
.severity--info { background: #EFF4FF; color: #1F4E9C; }
.evidence { display: grid; grid-template-columns: max-content 1fr; gap: 4px 16px; margin: 0; }
.evidence dt { color: #475467; }
.evidence dd { margin: 0; }
.params { margin: 0; padding: 10px 12px; list-style: none; background: #F1F4F9; border-radius: 6px; font-size: 13px; }
.notice--error { background: #FEF3F2; color: #B42318; }
.dismiss-form textarea { width: 100%; font: inherit; border: 1px solid #D0D5DD; border-radius: 6px; padding: 8px; box-sizing: border-box; }
.member-list { list-style: none; margin: 0; padding: 8px 20px 16px; display: flex; flex-direction: column; gap: 8px; }
.summary-cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 16px; margin-bottom: 24px; }
.summary-card p { margin: 0; }
.big { font-size: 24px; font-weight: 600; margin-top: 6px !important; }
.sev-letter { display: inline-block; padding: 2px 6px; border-radius: 4px; font-size: 12px; font-weight: 600; font-family: "IBM Plex Mono", monospace; }
.sev-letter--high { background: #FEF3F2; color: #B42318; }
.sev-letter--medium { background: #FFFAEB; color: #93370D; }
.sev-letter--info { background: #EFF4FF; color: #1F4E9C; }

/* Query packs (M6) */
.qp-items { padding-left: 20px; display: flex; flex-direction: column; gap: 16px; }
.qp-item textarea, #qp-email { width: 100%; box-sizing: border-box; font: inherit; border: 1px solid #D0D5DD; border-radius: 6px; padding: 8px; }
.qp-include { display: block; margin-bottom: 6px; font-weight: 500; }
.qp-document { border: 1px solid #E9EDF3; border-radius: 6px; padding: 16px; background: #FCFCFD; }
.qp-document h1, .qp-document .qp-title { font-size: 17px; }
.upload-form input { height: 44px; width: 100%; box-sizing: border-box; border: 1px solid #D0D5DD; border-radius: 6px; padding: 0 12px; font: inherit; }

/* Rules (M7) */
.tabs { display: flex; gap: 8px; margin-bottom: 16px; }
.tabs a { padding: 8px 14px; border-radius: 6px; text-decoration: none; border: 1px solid #DDE3EC; background: #fff; }
.tabs a[aria-current="page"] { background: #1F4E9C; color: #fff; border-color: #1F4E9C; }
.filters { margin-bottom: 16px; }
.pager { padding: 12px 20px; display: flex; gap: 16px; margin: 0; }
.code-block { white-space: pre-wrap; word-break: break-word; background: #F1F4F9; padding: 12px; border-radius: 6px; font-size: 12px; max-height: 360px; overflow: auto; }
.inline-form { display: flex; gap: 8px; align-items: center; margin: 0; }
.case { border: 1px solid #DDE3EC; border-radius: 6px; margin: 0 0 12px; padding: 12px; }
.card textarea, .card .field input, .card .field select { width: 100%; box-sizing: border-box; font: inherit; border: 1px solid #D0D5DD; border-radius: 6px; padding: 8px; }

/* AI observations (M9): visibly different from flags */
.ai-panel { border: 1px dashed #7A5AF8; background: #FAF8FF; }
.ai-label { font-size: 13px; font-weight: 600; color: #5925DC; }
.ai-list { list-style: none; margin: 0; padding: 0 20px 16px; }
.ai-item { border-top: 1px solid #E9E3FF; padding: 12px 0; }
.ai-item p { margin: 0 0 6px; }
.ai-item__summary { font-weight: 500; }
.ai-note { padding: 8px 20px 0; margin: 0; }
.table-scroll:focus-visible, .code-block:focus-visible { outline: 2px solid #1F4E9C; outline-offset: 2px; }

/* Long taxonomy names wrap so the comparison fits beside an open flag. */
[data-testid="comparison"] .code { overflow-wrap: anywhere; font-size: 12px; }
[data-testid="comparison"] td.num { white-space: nowrap; }