:root {
  --page: #f4f6f5;
  --surface: #ffffff;
  --text: #17211f;
  --muted: #596966;
  --border: #c9d2cf;
  --primary: #0b6f64;
  --primary-hover: #075b52;
  --danger: #9b3029;
  --focus: #d4522b;
  color: var(--text);
  background: var(--page);
  font: 16px/1.55 system-ui, -apple-system, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; letter-spacing: 0; }
body { min-inline-size: 20rem; margin: 0; }
button, input, textarea { font: inherit; }
:focus-visible { outline: 3px solid var(--focus); outline-offset: 2px; }
.skip-link { position: fixed; inset-block-start: -5rem; inset-inline-start: 1rem; z-index: 10; padding: 0.75rem 1rem; background: var(--primary); color: #fff; }
.skip-link:focus { inset-block-start: 1rem; }
.page-header { border-block-end: 1px solid var(--border); background: var(--surface); }
.header-inner { display: flex; align-items: center; gap: 0.75rem; inline-size: min(calc(100% - 2rem), 48rem); min-block-size: 4.5rem; margin-inline: auto; font-size: 1.125rem; }
main { inline-size: min(calc(100% - 2rem), 48rem); margin-inline: auto; padding-block: 2.5rem 4rem; }
h1, h2, p { margin: 0; }
h1 { overflow-wrap: anywhere; font-size: 2rem; line-height: 1.2; }
.quiz-heading { margin-block-end: 2rem; }
.quiz-heading > p:last-child, .state > p, #privacy-copy { margin-block-start: 0.5rem; color: var(--muted); }
.eyebrow { margin-block-end: 0.5rem; color: var(--primary); font-size: 0.8125rem; font-weight: 800; text-transform: uppercase; }
form { display: grid; gap: 1.5rem; }
.student-field { display: grid; gap: 0.5rem; padding-block-end: 1.5rem; border-block-end: 1px solid var(--border); }
label, legend { font-weight: 700; }
input[type="text"], textarea { inline-size: 100%; min-block-size: 2.875rem; padding: 0.625rem 0.75rem; border: 1px solid #8d9c98; border-radius: 5px; background: var(--surface); color: var(--text); }
textarea { min-block-size: 7rem; resize: vertical; }
.questions { display: grid; gap: 1rem; }
.question { min-inline-size: 0; margin: 0; padding: 1.25rem; border: 0; border-radius: 6px; background: var(--surface); box-shadow: 0 0 0 1px var(--border); }
.question legend { float: left; inline-size: 100%; padding: 0 0 0.875rem; line-height: 1.4; }
.question legend + * { clear: both; }
.question-number { display: block; margin-block-end: 0.25rem; color: var(--muted); font-size: 0.8125rem; }
.answer-options { display: grid; gap: 0.625rem; }
.answer-option { display: grid; grid-template-columns: 1.25rem minmax(0, 1fr); align-items: start; gap: 0.625rem; cursor: pointer; }
.answer-option input { inline-size: 1.25rem; block-size: 1.25rem; margin: 0.125rem 0 0; accent-color: var(--primary); }
.primary { min-block-size: 3rem; padding: 0.75rem 1rem; border: 1px solid var(--primary); border-radius: 5px; background: var(--primary); color: #fff; cursor: pointer; font-weight: 800; }
.primary:hover:not(:disabled) { background: var(--primary-hover); }
.primary:disabled { cursor: wait; opacity: 0.65; }
.form-error { padding: 0.75rem; border-radius: 5px; background: #fdecea; color: var(--danger); }
.state { padding-block: 4rem; text-align: center; }
.complete { padding: 2rem; border: 1px solid var(--border); border-radius: 8px; background: var(--surface); }
.extension-promo { display: grid; grid-template-columns: auto minmax(0, 1fr) auto; align-items: center; gap: 1rem; margin-block-start: 2rem; padding: 1rem; border: 1px solid var(--border); border-radius: 8px; background: var(--surface); }
.extension-promo h2 { font-size: 1rem; line-height: 1.35; }
.extension-promo p { margin-block-start: 0.25rem; color: var(--muted); font-size: 0.875rem; }
.extension-promo-link { display: inline-flex; align-items: center; justify-content: center; min-block-size: 2.75rem; padding: 0.625rem 0.875rem; border: 1px solid var(--primary); border-radius: 5px; color: var(--primary); font-weight: 800; text-align: center; text-decoration: none; }
.extension-promo-link:hover { background: #e8f3f1; }
[hidden] { display: none !important; }
@media (max-width: 32rem) { main { inline-size: min(calc(100% - 1.25rem), 48rem); padding-block-start: 1.5rem; } h1 { font-size: 1.5rem; } .question { padding: 1rem; } .extension-promo { grid-template-columns: auto minmax(0, 1fr); } .extension-promo-link { grid-column: 1 / -1; } }