.catalog-course-header { display: grid; grid-template-columns: 320px minmax(0,1fr) 340px; align-items: center; gap: 36px; padding: 28px; background: var(--surface); border-radius: var(--radius-lg); }
.catalog-course-header__cover { width: 320px; height: 240px; object-fit: cover; border-radius: var(--radius-sm); }
.catalog-course-header__info { display: flex; flex-direction: column; align-items: flex-start; gap: 18px; min-width: 0; }
.catalog-course-header h1 { font-size: 40px; line-height: 1.1; letter-spacing: -.4px; }
.catalog-course-header__info > p { font-size: 16px; line-height: 1.55; color: var(--ink-2); }
.catalog-course-meta { display: flex; flex-wrap: wrap; gap: 8px; }
.catalog-course-meta span { display: inline-flex; align-items: center; gap: 7px; padding: 8px 10px; border-radius: var(--radius-sm); background: var(--bg); font-size: 12px; }
.catalog-price { display: flex; flex-direction: column; align-items: stretch; gap: 16px; padding: 24px; background: var(--bg); border-radius: var(--radius-md); min-width: 0; }
.catalog-price > small { font-size: 13px; color: var(--ink-2); }
.catalog-price > strong { font-size: 36px; font-weight: 500; line-height: 1.15; letter-spacing: -.4px; }
.catalog-price > p { font-size: 13px; line-height: 1.5; color: var(--ink-2); }
.catalog-free-lesson__row { display: grid; grid-template-columns: minmax(0,12fr) minmax(0,7fr); align-items: stretch; gap: 32px; }
.catalog-free-lesson .video-player { width: 100%; align-self: start; }
.catalog-free-lesson__info { display: flex; flex-direction: column; justify-content: space-between; min-width: 0; }
.catalog-free-lesson__info small { color: var(--ink-2); font-size: 13px; }
.catalog-free-lesson__info h2 { font-size: 24px; line-height: 1.3; margin-top: 12px; }
.catalog-free-lesson__info p { font-size: 15px; line-height: 1.55; color: var(--ink-2); margin-top: 16px; }
.catalog-free-lesson__cta { background: var(--surface); border-radius: var(--radius-lg); padding: 24px; margin-top: 24px; }
.catalog-free-lesson__cta p { margin: 0 0 12px; color: var(--ink); font-size: 14px; }
.catalog-free-lesson__cta .btn { width: 100%; }
.catalog-audience-outcomes { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; align-items: stretch; }
.catalog-audience, .catalog-outcomes { padding: 28px; border-radius: var(--radius-lg); background: var(--surface); }
.catalog-audience h2, .catalog-outcomes h2 { font-size: 24px; }
.catalog-audience h3 { font-size: 14px; font-weight: 500; }
.catalog-audience p { font-size: 13px; line-height: 1.5; color: var(--ink-2); margin-top: 4px; }
.catalog-audience ul, .catalog-outcomes ul { display: grid; grid-template-columns: 1fr 1fr; gap: 24px 28px; list-style: none; padding: 0; margin: 24px 0 0; }
.catalog-audience li, .catalog-outcomes li { display: flex; gap: 12px; align-items: flex-start; font-size: 14px; line-height: 1.5; }
.catalog-audience .icon, .catalog-outcomes .icon { color: var(--success); margin-top: 2px; }
.catalog-program { display: flex; flex-direction: column; gap: 12px; }
.catalog-program > .section-heading { margin-bottom: 8px; }
.catalog-module { border: 1px solid var(--line); border-radius: var(--radius-lg); padding: 16px 22px; }
.catalog-module[open] { border-color: var(--line-strong); }
.catalog-module summary { list-style: none; display: flex; gap: 16px; align-items: center; cursor: pointer; }
.catalog-module summary::-webkit-details-marker { display: none; }
.catalog-module summary > div { flex: 1; min-width: 0; }
.catalog-module summary small { color: var(--ink-2); font-size: 13px; }
.catalog-module summary h3 { font-size: 19px; margin-top: 4px; }
.catalog-module__number { display: flex; align-items: center; justify-content: center; width: 40px; height: 40px; border-radius: var(--radius-md); background: var(--surface); flex-shrink: 0; }
.catalog-module__lessons { margin: 14px 0 0 56px; }
.catalog-module__lessons .lesson-row { border-radius: 0; }
.catalog-module__lessons .lesson-row--assignment { background: transparent; }
.catalog-final { display: flex; gap: 16px; align-items: center; background: var(--surface); border-radius: var(--radius-lg); padding: 16px 22px; }
.catalog-final > div { flex: 1; }
.catalog-final h3 { font-size: 19px; }.catalog-final p { font-size: 13px; color: var(--ink-2); margin-top: 4px; }
.catalog-steps > div { display: grid; grid-template-columns: repeat(4,minmax(0,1fr)); gap: 16px; margin-top: 20px; }
.catalog-steps article { display: flex; flex-direction: column; justify-content: space-between; min-height: 220px; padding: 24px; border-radius: var(--radius-lg); background: var(--surface); }
.catalog-steps article > span { color: var(--ink-2); font-size: 14px; }
.catalog-steps h3 { font-size: 19px; }.catalog-steps p { font-size: 14px; color: var(--ink-2); line-height: 1.5; margin-top: 10px; }
.catalog-steps .catalog-steps__last { background: var(--ink); color: var(--on-dark); }.catalog-steps__last > span, .catalog-steps__last p { color: var(--on-dark-muted); }
.catalog-access { display: flex; align-items: center; gap: 32px; padding: 36px 40px; border-radius: var(--radius-lg); background: var(--ink); color: var(--on-dark); }
.catalog-access > div { flex: 1; }.catalog-access h2 { font-size: 30px; }.catalog-access p { color: var(--on-dark-muted); font-size: 15px; line-height: 1.6; margin-top: 10px; }.catalog-access > strong { font-size: 28px; font-weight: 500; white-space: nowrap; }
@media (min-width:1280px) and (max-width:1599px) {
 .catalog-course-header { grid-template-columns: 220px minmax(0,1fr) 280px; gap: 24px; padding: 24px; }.catalog-course-header__cover { width: 220px; height: 200px; }.catalog-course-header h1 { font-size: 32px; }.catalog-course-header__info > p { font-size: 14px; }.catalog-course-meta span { font-size: 11px; }
}
@media (min-width:1024px) and (max-width:1279px) {
 .catalog-course-header { grid-template-columns: 180px minmax(0,1fr); gap: 24px; padding: 24px; }.catalog-course-header__cover { width: 180px; height: 180px; }.catalog-course-header h1 { font-size: 30px; }.catalog-price { grid-column: 1/-1; }.catalog-free-lesson__row { grid-template-columns: 1fr; }.catalog-audience-outcomes { grid-template-columns: 1fr; }
}
@media (max-width:1023px) {
 .catalog-course-header { display: flex; flex-direction: column; align-items: stretch; gap: 20px; padding: 16px; }.catalog-course-header__cover { width: 100%; height: 220px; }.catalog-course-header h1 { font-size: 26px; line-height: 1.2; }.catalog-course-header__info { gap: 14px; }.catalog-course-header__info > p { font-size: 14px; }.catalog-price { padding: 20px; }.catalog-price > strong { font-size: 30px; }.catalog-course-meta span { font-size: 11px; padding: 7px 8px; }
 .catalog-free-lesson__row { grid-template-columns: 1fr; gap: 20px; }.catalog-free-lesson__info h2 { font-size: 20px; }.catalog-free-lesson__info p { font-size: 14px; }.catalog-free-lesson__cta { padding: 20px; }
 .catalog-audience-outcomes { grid-template-columns: 1fr; gap: 20px; }.catalog-audience,.catalog-outcomes { padding: 20px; }.catalog-audience h2,.catalog-outcomes h2 { font-size: 20px; }.catalog-audience ul, .catalog-outcomes ul { grid-template-columns: 1fr; gap: 16px; }
 .catalog-steps > div { grid-template-columns: 1fr; }.catalog-steps article { min-height: 160px; gap: 24px; }.catalog-access { flex-direction: column; align-items: stretch; gap: 20px; padding: 24px; }.catalog-access h2 { font-size: 24px; }.catalog-access p { font-size: 14px; }
}