:root {
  --paper: #f6f8fb;
  --ink: #18202a;
  --muted: #667383;
  --line: #d9e0e8;
  --action: #2457d6;
  --danger: #b43b32;
  --success: #28734b;
  --surface: #ffffff;
  --radius: 14px;
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  color: var(--ink);
  background: var(--paper);
}

* { box-sizing: border-box; }
body { margin: 0; min-width: 320px; background: var(--paper); }
a { display: inline-flex; align-items: center; min-width: 44px; min-height: 44px; color: var(--action); }
button, input, select, textarea { font: inherit; }
button, input:not([type="checkbox"]):not([type="radio"]), select, textarea { min-width: 44px; min-height: 44px; }
button { cursor: pointer; }
:focus-visible { outline: 3px solid var(--action); outline-offset: 3px; }
button:disabled { cursor: not-allowed; opacity: .56; }

.skip-link { position: fixed; z-index: 10; top: 8px; left: 8px; transform: translateY(-160%); padding: 10px 14px; color: var(--surface); background: var(--ink); text-decoration: none; }
.skip-link:focus { transform: translateY(0); }

.site-header { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; padding: 14px 18px; background: var(--surface); border-bottom: 1px solid var(--line); }
.site-header > a { color: var(--ink); font-weight: 720; text-decoration: none; }
.site-header nav { display: flex; gap: 12px; flex: 1 0 100%; order: 3; }
.site-header nav a { font-size: 14px; }
.site-header form { margin-left: auto; }
.site-header button { border: 0; background: transparent; color: var(--muted); padding: 4px; }
main { width: min(100%, 720px); margin: 0 auto; padding: 28px 18px 48px; }

.eyebrow { margin: 0 0 8px; color: var(--muted); font-size: 13px; letter-spacing: .08em; }
h1 { margin: 0; font-size: clamp(30px, 9vw, 48px); letter-spacing: -.045em; line-height: 1.07; }
h2 { margin: 0; font-size: 18px; }
.target-state { max-width: 38rem; margin: 16px 0 0; color: var(--muted); line-height: 1.65; }
.target-state.is-ready { color: var(--success); }

.checkpoint-timeline { list-style: none; margin: 32px 0 0; padding: 0; border-top: 1px solid var(--line); }
.checkpoint { display: grid; grid-template-columns: 40px 1fr; gap: 12px; padding: 18px 0; border-bottom: 1px solid var(--line); }
.checkpoint-order { color: var(--muted); font-size: 12px; font-variant-numeric: tabular-nums; padding-top: 4px; }
.checkpoint-heading { display: flex; align-items: baseline; justify-content: space-between; gap: 12px; }
.status { color: var(--muted); font-size: 13px; white-space: nowrap; }
.status-done { color: var(--success); font-weight: 650; }
.target-date, .server-time, .disabled-reason { margin: 8px 0 0; color: var(--muted); font-size: 13px; line-height: 1.5; }
.capture-action { margin-top: 14px; padding: 9px 12px; color: var(--action); background: var(--surface); border: 1px solid currentColor; border-radius: var(--radius); font-weight: 650; }
.capture-action:not(:disabled):hover { color: var(--surface); background: var(--action); }
.evidence-line { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; margin: 12px 0 0; font-size: 14px; }
.server-stamp { display: inline-block; padding: 3px 6px; border: 1px solid var(--ink); border-radius: 4px; color: var(--ink); font-family: ui-monospace, "SFMono-Regular", Menlo, monospace; font-size: 10px; letter-spacing: .045em; }
.capture-status { min-height: 1.5em; margin: 18px 0 0; color: var(--muted); }

.reading-column { max-width: 560px; }
.record-list { list-style: none; margin: 28px 0 0; padding: 0; border-top: 1px solid var(--line); }
.record-list li { display: flex; justify-content: space-between; gap: 16px; padding: 14px 0; border-bottom: 1px solid var(--line); }
.ledger-list strong { color: var(--danger); font-variant-numeric: tabular-nums; }

.back-link { display: inline-block; margin-bottom: 18px; font-size: 14px; }
.review-queue-list, .audit-list, .review-history { list-style: none; margin: 28px 0 0; padding: 0; border-top: 1px solid var(--line); }
.review-queue-list li, .audit-list li, .review-history li { border-bottom: 1px solid var(--line); }
.review-queue-list a { display: flex; align-items: baseline; justify-content: space-between; gap: 16px; padding: 15px 0 5px; color: var(--ink); text-decoration: none; }
.review-queue-list a:hover { color: var(--action); }
.review-queue-list p { margin: 0; padding: 0 0 14px; color: var(--muted); font-size: 13px; }
.empty-state { color: var(--muted); line-height: 1.6; }
.verdict-strip { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1px; margin: 24px 0 0; background: var(--line); border: 1px solid var(--line); }
.verdict-strip div { padding: 12px; background: var(--surface); }
.verdict-strip dt, .evidence-facts dt { color: var(--muted); font-size: 12px; }
.verdict-strip dd, .evidence-facts dd { margin: 4px 0 0; font-variant-numeric: tabular-nums; }
.review-checkpoints { list-style: none; margin: 30px 0 0; padding: 0; border-top: 1px solid var(--line); }
.review-checkpoint { display: grid; grid-template-columns: 40px minmax(0, 1fr); gap: 12px; padding: 18px 0; border-bottom: 1px solid var(--line); }
.private-media { display: block; width: min(100%, 440px); max-height: 320px; margin: 14px 0; background: var(--ink); object-fit: contain; }
.day-review-grid { display: grid; gap: 28px; }
.evidence-facts { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; margin: 14px 0 0; }
.evidence-facts div { min-width: 0; }
.evidence-facts dd { overflow-wrap: anywhere; font-size: 13px; }
.digest { font-family: ui-monospace, "SFMono-Regular", Menlo, monospace; }
.review-current { margin: 14px 0 0; color: var(--success); font-size: 14px; }
.review-actions { display: flex; flex-wrap: wrap; gap: 10px 18px; align-items: end; margin-top: 16px; }
.review-actions form { display: flex; flex-wrap: wrap; gap: 8px; align-items: end; }
.review-actions label { display: grid; gap: 4px; color: var(--muted); font-size: 13px; }
.review-actions input, .rule-form input, .rule-form select { min-width: 44px; min-height: 44px; padding: 6px 8px; border: 1px solid var(--line); border-radius: 6px; background: var(--surface); color: var(--ink); }
.review-approve, .review-reject { padding: 9px 12px; border: 1px solid currentColor; border-radius: var(--radius); background: var(--surface); font-weight: 650; }
.review-approve { color: var(--success); }
.review-reject { color: var(--danger); }
.review-approve:hover { color: var(--surface); background: var(--success); }
.review-reject:hover { color: var(--surface); background: var(--danger); }
.review-history { margin-top: 16px; font-size: 12px; color: var(--muted); }
.review-history li, .audit-list li { padding: 9px 0; line-height: 1.5; }
.audit-section { margin-top: 42px; }
.audit-list time { display: block; color: var(--muted); font-family: ui-monospace, "SFMono-Regular", Menlo, monospace; font-size: 11px; }
.rule-form { display: grid; gap: 14px; margin-top: 24px; }
.rule-form > label, .rule-form fieldset label { display: grid; gap: 5px; color: var(--muted); font-size: 13px; }
.rule-form fieldset { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; margin: 0; padding: 14px; border: 1px solid var(--line); border-radius: var(--radius); }
.rule-form legend { padding: 0 4px; color: var(--muted); font-size: 13px; }
.rule-form fieldset .field-note { grid-column: 1 / -1; margin: 0; color: var(--muted); font-size: 13px; line-height: 1.5; }
.rule-window-field { display: grid; gap: 5px; }
.checkbox-hit { display: inline-flex !important; align-items: center; gap: 5px; width: max-content; min-width: 44px; min-height: 44px; color: var(--muted); font-size: 12px; }
.checkbox-hit input { flex: none; margin: 0; }
.rule-list li.rule-version { display: block; font-size: 14px; }
.rule-version h2 { font-size: 16px; }
.rule-facts { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; margin: 12px 0 0; }
.rule-facts dt { color: var(--muted); font-size: 12px; }
.rule-facts dd { margin: 4px 0 0; overflow-wrap: anywhere; font-variant-numeric: tabular-nums; }

@media (min-width: 620px) {
  .site-header nav { flex: 1; order: 0; }
  main { padding-top: 48px; }
  .checkpoint { grid-template-columns: 58px 1fr; padding: 22px 0; }
  .review-checkpoint { grid-template-columns: 58px minmax(0, 1fr); padding: 22px 0; }
}

@media (min-width: 721px) {
  .day-review-grid { grid-template-columns: minmax(0, 1.2fr) minmax(220px, .8fr); align-items: start; }
  .day-review-grid .audit-section { margin-top: 30px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; transition: none !important; animation: none !important; }
}

@media (max-width: 720px) {
  .day-review-grid { grid-template-columns: 1fr; }
  .capture-action { position: sticky; bottom: 12px; width: 100%; min-height: 52px; }
}