:root {
  --navy: #0b1c2c;
  --navy-2: #12263a;
  --ink: #0a0a0a;
  --paper: #f4f1ea;
  --paper-2: #e8e2d6;
  --line: #c9c1b2;
  --ok: #1f4d3a;
  --bad: #6b2a2a;
}
* { box-sizing: border-box; }
html {
  font-size: 16px;
}
html, body {
  margin: 0;
  padding: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: Georgia, "Times New Roman", serif;
}
body {
  min-height: 100vh;
  font-size: 1rem;
  line-height: 1.5;
}
header {
  background: var(--navy);
  color: var(--paper);
  padding: 1rem 1rem 1.05rem;
}
header .brand { display: flex; align-items: center; gap: .75rem; }
header img {
  width: 50px;
  height: 56px;
  object-fit: contain;
}
header p {
  margin: 0;
  font-size: 0.875rem;
  line-height: 1.4;
  opacity: .9;
  font-family: system-ui, sans-serif;
}
main {
  max-width: 640px;
  margin: 0 auto;
  padding: 1.25rem 1rem 3rem;
}
.card {
  background: #fff;
  border: 1px solid var(--line);
  padding: 1rem;
}
.kicker {
  font-family: system-ui, sans-serif;
  font-size: 0.8125rem;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: #5b5348;
  margin: 0 0 .55rem;
}
h1 { margin: 0; font-size: 1.375rem; }
h2 { margin: 0 0 .75rem; font-size: 1.125rem; }
p, li { line-height: 1.5; }
.stem {
  font-size: 1.0625rem;
  font-weight: 500;
  margin: 0 0 1rem;
}
label.choice {
  display: flex;
  align-items: flex-start;
  gap: .65rem;
  border: 1px solid var(--line);
  background: var(--paper);
  padding: 12px 14px;
  min-height: 48px;
  margin: 0 0 12px;
  cursor: pointer;
  font-family: system-ui, sans-serif;
  font-size: 0.9375rem;
  width: 100%;
}
label.choice input[type=radio] {
  width: 20px;
  height: 20px;
  min-width: 20px;
  margin: 2px 0 0;
  accent-color: var(--navy);
}
label.choice:has(input:checked) {
  background: var(--navy);
  color: #fff;
  border-color: var(--navy);
}
.row {
  display: flex;
  gap: .6rem;
  flex-wrap: wrap;
  margin-top: 1rem;
}
button, .btn {
  appearance: none;
  border: 0;
  background: var(--navy);
  color: var(--paper);
  font-family: system-ui, sans-serif;
  font-size: 1rem;
  min-height: 48px;
  padding: .7rem 1rem;
  cursor: pointer;
}
button.ghost {
  background: transparent;
  color: var(--navy);
  border: 1px solid var(--navy);
}
button:disabled { opacity: .45; cursor: not-allowed; }
.progress {
  font-family: system-ui, sans-serif;
  font-size: 0.875rem;
  color: #5b5348;
  margin: 0 0 .8rem;
}
label.field, .hint, .note {
  font-family: system-ui, sans-serif;
  font-size: 0.875rem;
  color: #4a433a;
}
input[type=text], textarea {
  width: 100%;
  font-size: 1rem;
  padding: .6rem .65rem;
  border: 1px solid var(--line);
  background: var(--paper);
  font-family: system-ui, sans-serif;
}
.score { font-size: 1.375rem; margin: .2rem 0 .8rem; }
.item { border-top: 1px solid var(--line); padding: 1rem 0; }
.item .verdict {
  font-family: system-ui, sans-serif;
  font-size: 0.8125rem;
  letter-spacing: .06em;
  text-transform: uppercase;
  margin: 0 0 .35rem;
}
.ok { color: var(--ok); }
.bad { color: var(--bad); }
.hidden { display: none; }
footer {
  max-width: 640px;
  margin: 0 auto;
  padding: 0 1rem 2rem;
  font-family: system-ui, sans-serif;
  font-size: 0.8125rem;
  color: #6a6258;
}
@media (max-width: 599px) {
  main { padding: 1rem 16px 3rem; }
  .card { padding: 16px; }
  label.choice { width: 100%; }
}