.course-block,.course-callout,.course-reveal{border:1px solid var(--ink);background:var(--paper);box-shadow:4px 4px 0 var(--grid-major);margin-block:2rem;padding:1.1rem 1.25rem}.course-kicker{font-family:var(--font-mono);letter-spacing:.12em;text-transform:uppercase;color:var(--pen);margin:0 0 .35rem;font-size:.72rem}.course-block code,.course-callout code{background:var(--paper-deep);font-family:var(--font-mono);border-radius:3px;padding:.05em .35em;font-size:.88em}.course-quiz-body{max-width:none;margin-top:.75rem}.course-quiz-body :where(pre){margin:0}.course-option{border:1.5px solid var(--rule);text-align:left;align-items:baseline;gap:.75rem;width:100%;padding:.55rem .8rem;transition:border-color .15s,background .15s;display:flex}.course-option:not(:disabled):hover{border-color:var(--pen)}.course-option:focus-visible{outline:2px solid var(--pen);outline-offset:2px}.course-letter{font-family:var(--font-mono);color:var(--ink-faint);font-size:.8rem}.course-option.is-right{background:#2f8f5b1a;border-color:#2f8f5b}.course-option.is-wrong{background:#c2413b1a;border-color:#c2413b}.course-option.is-dim{opacity:.55}.course-right{color:#2f8f5b;font-weight:600}.course-wrong{color:#c2413b;font-weight:600}:root[data-theme=dark] .course-right{color:#7fc79c}:root[data-theme=dark] .course-wrong{color:#e8847f}.course-link{font-family:var(--font-mono);text-transform:uppercase;letter-spacing:.06em;text-underline-offset:.2em;color:var(--ink-soft);font-size:.8rem;text-decoration:underline}.course-reveal summary{cursor:pointer;font-family:var(--font-mono);letter-spacing:.06em;text-transform:uppercase;color:var(--pen);font-size:.8rem}.course-reveal-body>:first-child{margin-top:.75rem}.course-callout{box-shadow:none;border-width:0 0 0 4px;border-color:var(--pen);background:var(--paper-deep)}.course-callout.is-warning{border-color:#c2413b}.course-callout.is-interview{border-color:#d4a300}.course-callout>div>:first-child{margin-top:0}.course-callout>div>:last-child{margin-bottom:0}.course-card{border:1.5px dashed var(--rule);text-align:left;background:var(--paper);width:100%;min-height:9rem;margin-top:.5rem;padding:1.1rem 1.2rem;transition:background .15s;display:block}.course-card.is-flipped{border-style:solid;border-color:var(--pen);background:var(--paper-deep)}.course-tick{color:#2f8f5b;font-weight:700}:root[data-theme=dark] .course-tick{color:#7fc79c}.course-level{font-family:var(--font-mono);letter-spacing:.08em;text-transform:uppercase;border:1px solid;border-radius:2px;padding:.1rem .45rem;font-size:.7rem}.course-level.is-beginner{color:#2f8f5b}.course-level.is-intermediate{color:var(--pen)}.course-level.is-advanced{color:#8a4fc2}.course-level.is-interview{color:#b07d00}:root[data-theme=dark] .course-level.is-beginner{color:#7fc79c}:root[data-theme=dark] .course-level.is-advanced{color:#c39be8}:root[data-theme=dark] .course-level.is-interview{color:#e3b341}