:root {
  --ink: #1a1a1a;
  --muted: #5c5c5c;
  --rule: #d8d4cc;
  --paper: #faf8f4;
  --panel: #ffffff;
  --reject: #a3242a;
  --reject-bg: #fbeceb;
  --review: #8a5a00;
  --review-bg: #fdf3e0;
  --advisory: #2f5d76;
  --advisory-bg: #eef4f8;
  --accent: #1f3a5f;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  padding: 0 1.25rem 4rem;
  background: var(--paper);
  color: var(--ink);
  font: 16px/1.6 Charter, Georgia, "Times New Roman", serif;
  -webkit-font-smoothing: antialiased;
}

.masthead {
  max-width: 46rem;
  margin: 0 auto;
  padding: 3rem 0 1.5rem;
  border-bottom: 1px solid var(--rule);
}
.masthead h1 {
  margin: 0;
  font-size: 2.1rem;
  letter-spacing: -0.015em;
}
.tagline {
  margin: 0.4rem 0 0;
  color: var(--muted);
  max-width: 32rem;
}

main { max-width: 46rem; margin: 0 auto; }

.panel {
  background: var(--panel);
  border: 1px solid var(--rule);
  border-radius: 6px;
  padding: 1.5rem;
  margin-top: 2rem;
}

.field { margin-bottom: 1.5rem; }
.field label {
  display: block;
  font-weight: 600;
  margin-bottom: 0.4rem;
  font-size: 0.95rem;
}

select {
  width: 100%;
  padding: 0.6rem;
  font: inherit;
  font-size: 1rem;
  border: 1px solid var(--rule);
  border-radius: 4px;
  background: #fff;
  color: var(--ink);
}

.provenance,
.privacy {
  margin: 0.5rem 0 0;
  font-size: 0.82rem;
  color: var(--muted);
}
.provenance a { color: var(--accent); }
.provenance.stale { color: var(--reject); }

.drop {
  display: block;
  border: 1.5px dashed var(--rule);
  border-radius: 4px;
  padding: 1.6rem 1rem;
  text-align: center;
  cursor: pointer;
  transition: border-color 0.15s, background 0.15s;
}
.drop:hover, .drop.over { border-color: var(--accent); background: #f4f7fb; }
.drop input { position: absolute; width: 1px; height: 1px; opacity: 0; }
.drop-label { color: var(--muted); font-size: 0.95rem; }
.drop.has-file .drop-label { color: var(--ink); font-weight: 600; }

button {
  font: inherit;
  font-size: 1rem;
  padding: 0.65rem 1.4rem;
  border: 0;
  border-radius: 4px;
  background: var(--accent);
  color: #fff;
  cursor: pointer;
}
button:disabled { opacity: 0.5; cursor: default; }

.status {
  margin-top: 1.5rem;
  padding: 0.9rem 1.1rem;
  border-radius: 4px;
  background: #fff;
  border: 1px solid var(--rule);
}
.status.error { border-color: var(--reject); background: var(--reject-bg); color: var(--reject); }

.summary {
  margin-top: 2.5rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--rule);
}
.summary h2 { margin: 0 0 0.3rem; font-size: 1.4rem; }
.summary .meta { color: var(--muted); font-size: 0.85rem; margin: 0; }

.tally { display: flex; gap: 0.6rem; flex-wrap: wrap; margin: 1rem 0 0; }
.pill {
  padding: 0.25rem 0.7rem;
  border-radius: 999px;
  font-size: 0.85rem;
  font-weight: 600;
}
.pill.reject { background: var(--reject-bg); color: var(--reject); }
.pill.review { background: var(--review-bg); color: var(--review); }
.pill.advisory { background: var(--advisory-bg); color: var(--advisory); }
.pill.clear { background: #e8f2e8; color: #2b6130; }

.group h3 {
  margin: 2rem 0 0.75rem;
  font-size: 1.05rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}
.group.reject h3 { color: var(--reject); }
.group.review h3 { color: var(--review); }
.group.advisory h3 { color: var(--advisory); }

.finding {
  background: var(--panel);
  border: 1px solid var(--rule);
  border-left-width: 4px;
  border-radius: 4px;
  padding: 1rem 1.1rem;
  margin-bottom: 0.85rem;
}
.finding.reject { border-left-color: var(--reject); }
.finding.review { border-left-color: var(--review); }
.finding.advisory { border-left-color: var(--advisory); }

.finding h4 { margin: 0 0 0.4rem; font-size: 1.02rem; }
.finding p { margin: 0 0 0.6rem; }
.finding .where,
.finding .fix,
.finding .rule {
  font-size: 0.88rem;
  margin-bottom: 0.4rem;
}
.finding .label {
  font-weight: 600;
  font-variant: small-caps;
  letter-spacing: 0.03em;
  color: var(--muted);
  margin-right: 0.35rem;
}
.finding .rule { color: var(--muted); font-style: italic; }

.aside {
  margin-top: 2.5rem;
  padding: 1.1rem 1.2rem;
  background: #f2efe9;
  border-radius: 4px;
  font-size: 0.9rem;
}
.aside h3 { margin: 0 0 0.5rem; font-size: 0.95rem; }
.aside ul { margin: 0; padding-left: 1.2rem; }
.aside li { margin-bottom: 0.45rem; }

footer {
  max-width: 46rem;
  margin: 3rem auto 0;
  padding-top: 1.2rem;
  border-top: 1px solid var(--rule);
  color: var(--muted);
  font-size: 0.85rem;
}

@media (prefers-color-scheme: dark) {
  :root {
    --ink: #ececec;
    --muted: #a0a0a0;
    --rule: #3a3a3a;
    --paper: #16171a;
    --panel: #1e1f23;
    --reject: #f08b8b;
    --reject-bg: #38211f;
    --review: #e6bb6a;
    --review-bg: #362c17;
    --advisory: #8fc0dd;
    --advisory-bg: #1c2b34;
    --accent: #7aa5d2;
  }
  select, .status { background: var(--panel); }
  button { color: #12161c; }
  .drop:hover, .drop.over { background: #232833; }
  .aside { background: #22242a; }
  .pill.clear { background: #1f3324; color: #8fd39a; }
}

@media (max-width: 34rem) {
  .masthead { padding-top: 2rem; }
  .masthead h1 { font-size: 1.7rem; }
  .panel { padding: 1.1rem; }
}