/* Practice-test pages. System fonts only: no third-party requests. */
:root {
  --bg: #ffffff;
  --fg: #1b1d21;
  --muted: #555b66;
  --line: #d6d9de;
  --panel: #f4f5f7;
  --accent: #1d4ed8;
  --accent-fg: #ffffff;
  --right: #166534;
  --right-bg: #ecfdf3;
  --wrong: #9f1239;
  --wrong-bg: #fff1f3;
  --focus: #f59e0b;
  color-scheme: light dark;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #121417;
    --fg: #e8eaed;
    --muted: #a3a9b4;
    --line: #353a42;
    --panel: #1c1f24;
    --accent: #8ab4ff;
    --accent-fg: #0b1020;
    --right: #86efac;
    --right-bg: #10261a;
    --wrong: #fda4af;
    --wrong-bg: #2a1217;
  }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0 auto;
  max-width: 42rem;
  padding: 1rem 1rem 3rem;
  background: var(--bg);
  color: var(--fg);
  font: 1.0625rem/1.55 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}
h1 { font-size: 1.6rem; line-height: 1.25; margin: 0.25rem 0 0.5rem; }
h2 { font-size: 1.25rem; margin: 2rem 0 0.5rem; }
h3 { font-size: 1.05rem; margin: 0 0 0.25rem; }
h4 { font-size: 0.95rem; margin: 1rem 0 0.25rem; }
a { color: var(--accent); overflow-wrap: anywhere; }
p, li, td, th, legend, label, blockquote { overflow-wrap: break-word; }
:focus-visible { outline: 3px solid var(--focus); outline-offset: 2px; }
[tabindex="-1"]:focus { outline: none; }
.brand { margin: 0; color: var(--muted); font-weight: 600; }
.brand a { color: inherit; text-decoration: none; }
.lead { font-size: 1.1rem; }
.note, .progress, .section-name, footer { color: var(--muted); }
.section-name { margin: 0 0 0.5rem; font-size: 0.95rem; }
table { border-collapse: collapse; width: 100%; }
th, td { text-align: left; padding: 0.4rem 0.5rem; border-bottom: 1px solid var(--line); }
td { text-align: right; white-space: nowrap; }
th[scope="col"]:not(:first-child) { text-align: right; }
.price, .mode, .notices {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 0.25rem 1rem 1rem;
  margin: 1.5rem 0;
}
.mode { padding-top: 1rem; }
.notices h2 { font-size: 1rem; margin-top: 0.75rem; }
.notices ul { padding-left: 1.1rem; margin: 0; font-size: 0.95rem; }
button, .button, .buy {
  display: inline-block;
  min-height: 44px;
  padding: 0.6rem 1.1rem;
  border: 1px solid var(--accent);
  border-radius: 8px;
  background: var(--accent);
  color: var(--accent-fg);
  font: inherit;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
}
button.quiet { background: transparent; color: var(--accent); }
button[hidden] { display: none; }
.actions { display: flex; flex-wrap: wrap; gap: 0.5rem; margin: 1rem 0; }
fieldset.choices { border: 0; padding: 0; margin: 0; }
legend { font-weight: 600; font-size: 1.1rem; margin-bottom: 0.75rem; padding: 0; }
.choice {
  display: flex;
  align-items: flex-start;
  gap: 0.6rem;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 0.65rem 0.75rem;
  margin: 0.5rem 0;
}
.choice input { margin-top: 0.3rem; width: 1.15rem; height: 1.15rem; flex: none; }
.choice label { flex: 1; cursor: pointer; }
.choice:has(input:checked) { border-color: var(--accent); }
.letter { font-weight: 700; margin-right: 0.4rem; }
.feedback { border-radius: 8px; padding: 0.25rem 1rem 0.75rem; margin: 1rem 0; border: 1px solid var(--line); }
.feedback.right { background: var(--right-bg); }
.feedback.wrong { background: var(--wrong-bg); }
.feedback.right .verdict { color: var(--right); font-weight: 700; }
.feedback.wrong .verdict { color: var(--wrong); font-weight: 700; }
.whys { padding-left: 1.1rem; }
.citations figure { margin: 0.5rem 0; }
blockquote { margin: 0; padding: 0.25rem 0 0.25rem 0.75rem; border-left: 3px solid var(--line); font-style: italic; }
figcaption { font-size: 0.9rem; color: var(--muted); margin-top: 0.25rem; }
.clock { font-variant-numeric: tabular-nums; font-weight: 600; }
.review > li { margin-bottom: 1.5rem; }
.review .stem { font-weight: 600; }
.sample { font-weight: 700; }
footer { margin-top: 2.5rem; font-size: 0.9rem; border-top: 1px solid var(--line); padding-top: 0.5rem; }
@media (prefers-reduced-motion: reduce) { * { scroll-behavior: auto !important; } }
.resend form { display: flex; flex-wrap: wrap; gap: 0.5rem; align-items: center; }
.resend label { width: 100%; font-weight: 600; }
.resend input[type="email"] {
  flex: 1 1 14rem;
  min-width: 0;
  padding: 0.55rem 0.7rem;
  font: inherit;
  color: var(--fg);
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: 8px;
}