:root {
  --bg: #f6f7f9;
  --surface: #ffffff;
  --ink: #1c2126;
  --muted: #5b6670;
  --line: #e3e7eb;
  --accent: #16507b;
  --accent-ink: #ffffff;
  --demo: #8a5a00;
  --demo-bg: #fff4d6;
  --ok: #1f7a3d;
  --warn: #9a6b00;
  --gap: #7a1f1f;
  --radius: 8px;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; }
html, body { margin: 0; }
body {
  font-family: var(--sans);
  color: var(--ink);
  background: var(--bg);
  line-height: 1.5;
}

.demo-banner {
  background: var(--demo-bg);
  color: var(--demo);
  font-weight: 600;
  font-size: 0.85rem;
  text-align: center;
  padding: 0.5rem 1rem;
  border-bottom: 1px solid #e6d089;
  letter-spacing: 0.01em;
}

.topbar {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  padding: 0.75rem 1.5rem;
  background: var(--surface);
  border-bottom: 1px solid var(--line);
}
.topbar .brand { font-weight: 700; color: var(--ink); text-decoration: none; font-size: 1.05rem; }
.topbar nav { display: flex; gap: 1rem; }
.topbar nav a { color: var(--muted); text-decoration: none; font-size: 0.92rem; }
.topbar nav a:hover { color: var(--accent); }
.topbar .spacer { flex: 1; }

.content { max-width: 980px; margin: 2rem auto; padding: 0 1.5rem; }

.card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.75rem 2rem;
}
.card h1 { margin-top: 0; font-size: 1.5rem; }
.lede { color: var(--muted); font-size: 1.02rem; max-width: 62ch; }
.principles { color: var(--ink); padding-left: 1.1rem; }
.principles li { margin: 0.35rem 0; }

.actions { display: flex; gap: 0.75rem; margin-top: 1.5rem; }
.btn {
  display: inline-block;
  background: var(--accent);
  color: var(--accent-ink);
  text-decoration: none;
  padding: 0.55rem 1.1rem;
  border-radius: var(--radius);
  font-size: 0.92rem;
  border: 1px solid var(--accent);
}
.btn-secondary { background: transparent; color: var(--accent); }
.btn:hover { filter: brightness(1.05); }

.footer {
  max-width: 980px;
  margin: 2rem auto 3rem;
  padding: 0 1.5rem;
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  color: var(--muted);
  font-size: 0.82rem;
}

.card-narrow { max-width: 420px; margin: 3rem auto; }
.stack { display: flex; flex-direction: column; gap: 0.5rem; max-width: 320px; }
.stack label { font-size: 0.85rem; color: var(--muted); }
.stack input {
  padding: 0.55rem 0.7rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  font-size: 0.95rem;
}
.stack button { margin-top: 0.5rem; }
.form-error {
  background: #f5e6e6;
  color: var(--gap);
  padding: 0.5rem 0.75rem;
  border-radius: var(--radius);
  font-size: 0.88rem;
}
.inline-form { margin: 0; }
.linkbtn {
  background: none;
  border: none;
  color: var(--muted);
  cursor: pointer;
  font-size: 0.92rem;
  padding: 0;
}
.linkbtn:hover { color: var(--accent); }

.row-between { display: flex; justify-content: space-between; align-items: flex-start; gap: 1rem; }
.muted { color: var(--muted); }
.notice {
  background: #eef4fb; color: var(--accent);
  padding: 0.6rem 0.8rem; border-radius: var(--radius); font-size: 0.9rem;
}
.version-tag {
  font-size: 0.8rem; color: var(--muted); font-weight: 600;
  border: 1px solid var(--line); border-radius: 999px; padding: 0.1rem 0.5rem; vertical-align: middle;
}
table.grid { width: 100%; border-collapse: collapse; margin-top: 1rem; font-size: 0.9rem; }
table.grid th, table.grid td { text-align: left; padding: 0.5rem 0.6rem; border-bottom: 1px solid var(--line); vertical-align: top; }
table.grid th { color: var(--muted); font-weight: 600; font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.03em; }
table.grid input, table.grid select { width: 100%; padding: 0.35rem 0.4rem; border: 1px solid var(--line); border-radius: 6px; font-size: 0.88rem; }
.field-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; margin: 1rem 0; }
.field-grid label { display: flex; flex-direction: column; gap: 0.3rem; font-size: 0.85rem; color: var(--muted); }
.field-grid input { padding: 0.5rem 0.6rem; border: 1px solid var(--line); border-radius: var(--radius); font-size: 0.95rem; }
code { background: #f0f2f4; padding: 0.05rem 0.35rem; border-radius: 4px; font-size: 0.85em; }

/* status chips (used from Phase 5) */
.chip { display: inline-block; padding: 0.15rem 0.55rem; border-radius: 999px; font-size: 0.78rem; font-weight: 600; }
.chip-met { background: #e6f4ea; color: var(--ok); }
.chip-notmet { background: #f5e6e6; color: var(--gap); }
.chip-unverifiable { background: #fff4d6; color: var(--warn); border: 1px dashed #d9b45a; }
.chip-manual { background: #ede9fb; color: #5b3ea6; }

/* review screen */
.review-head { display: flex; justify-content: space-between; align-items: flex-start; max-width: 1300px; margin: 1.5rem auto 0.5rem; padding: 0 1.5rem; }
.review-head h1 { margin: 0 0 0.25rem; font-size: 1.3rem; }
.lang-toggle a { color: var(--muted); text-decoration: none; padding: 0.2rem 0.5rem; border: 1px solid var(--line); border-radius: 6px; font-size: 0.8rem; }
.lang-toggle a.active { background: var(--accent); color: #fff; border-color: var(--accent); }
.two-pane { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; max-width: 1300px; margin: 0 auto 3rem; padding: 0 1.5rem; align-items: start; }
.pane { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); }
.pane-doc { position: sticky; top: 1rem; height: calc(100vh - 2rem); padding: 0.5rem; }
.pane-doc iframe, .pane-doc img { width: 100%; height: 100%; border: 0; object-fit: contain; }
.pane-check { padding: 1.25rem 1.5rem; }
.small { font-size: 0.82rem; }
.indication { background: #eef4fb; border-radius: var(--radius); padding: 0.75rem 1rem; margin-bottom: 1rem; }
.indication h3 { margin: 0 0 0.4rem; font-size: 0.9rem; color: var(--accent); }
.indication p { margin: 0.25rem 0; font-size: 0.9rem; }

.crit { border: 1px solid var(--line); border-radius: var(--radius); padding: 0.75rem 0.9rem; margin-bottom: 0.6rem; }
.crit-gap { background: #fffaf0; border-color: #e6c877; border-left: 3px solid var(--warn); }
.crit-top { display: flex; justify-content: space-between; align-items: center; gap: 0.5rem; }
.crit-label { font-weight: 600; font-size: 0.95rem; }
.req { color: var(--gap); }
.crit-body { margin-top: 0.4rem; font-size: 0.88rem; }
.crit-body .k { color: var(--muted); font-size: 0.8rem; }
.crit-val .gap { color: var(--gap); font-style: italic; }
.snippet { font-style: italic; color: #444; }
.pagelink { color: var(--accent); text-decoration: none; font-weight: 600; margin-left: 0.3rem; }
.crit-reason { margin-top: 0.2rem; }
.override { display: flex; gap: 0.4rem; margin-top: 0.5rem; }
.override input { flex: 1; padding: 0.3rem 0.4rem; border: 1px solid var(--line); border-radius: 6px; font-size: 0.82rem; }

.outcome-box, .rationale-box { margin-top: 1.5rem; padding-top: 1rem; border-top: 1px solid var(--line); }
.radio { display: block; padding: 0.3rem 0; font-size: 0.95rem; }
.rationale-box textarea { width: 100%; padding: 0.5rem; border: 1px solid var(--line); border-radius: var(--radius); font-family: inherit; font-size: 0.9rem; margin: 0.3rem 0 0.75rem; }
.rationale-box label { font-size: 0.85rem; color: var(--muted); }

@media (max-width: 900px) {
  .two-pane { grid-template-columns: 1fr; }
  .pane-doc { position: static; height: 480px; }
}