.course-wrapper{max-width:720px;margin:0 auto;padding:3rem 1.5rem 5rem;display:flex;flex-direction:column;gap:3rem}.course-hero{border-bottom:1px solid var(--color-rim);padding-bottom:2rem}.course-title{font-size:2rem;font-weight:700;color:var(--color-text);letter-spacing:-.03em;margin:0 0 .5rem;line-height:1.2}.course-subtitle{color:var(--color-text-secondary);font-size:.9375rem;margin:0;line-height:1.6}.course-sections{display:flex;flex-direction:column;gap:1rem}.course-section-card{display:flex;gap:1.25rem;padding:1.25rem 1.5rem;border:1px solid var(--color-rim);border-radius:6px;background:var(--color-surface)}.course-section-num{font-size:.75rem;font-weight:600;color:var(--color-accent);letter-spacing:.04em;flex-shrink:0;padding-top:.2rem;font-variant-numeric:tabular-nums}.course-section-body{display:flex;flex-direction:column;gap:.375rem}.course-section-title{font-size:.9375rem;font-weight:600;color:var(--color-text);margin:0}.course-section-desc{font-size:.875rem;color:var(--color-muted);margin:0;line-height:1.55}.course-cta{display:flex;align-items:center;gap:1.25rem;flex-wrap:wrap;border-top:1px solid var(--color-rim);padding-top:2rem}.course-cta-text{font-size:.9375rem;color:var(--color-text-secondary);margin:0}.course-cta-btn{display:inline-block;background:var(--color-accent);color:var(--color-accent-fg);font-size:.875rem;font-weight:500;padding:.5rem 1rem;border-radius:4px;text-decoration:none;transition:background .1s}.course-cta-btn:hover{background:var(--color-accent-hover);text-decoration:none}