/* S4A-2: featured artwork, isolated CSS namespace. */
#app .s4aTeacherShowcase{margin-top:1.25rem;min-width:0;padding-top:1rem;border-top:1px solid var(--line,rgba(140,140,140,.18))}
#app .s4aShowcaseHead{display:flex;align-items:center;gap:.45rem;margin-bottom:.75rem}
#app .s4aShowcaseHead h3{font-size:1rem;margin:0;flex:1;min-width:0}
#app .s4aCarouselNav{min-height:40px;min-width:40px;padding:.4rem;display:grid;place-items:center}
#app .s4aWorksTrack{display:flex;gap:.65rem;overflow-x:auto;scroll-snap-type:x proximity;overscroll-behavior-inline:contain;padding:2px 2px .5rem;scrollbar-width:thin}
#app .s4aWorkItem{display:flex;flex-direction:column;gap:.4rem;flex:0 0 clamp(112px,30%,174px);min-width:0;border:1px solid rgba(140,140,140,.24);background:var(--card,#202229);color:inherit;border-radius:12px;overflow:hidden;padding:.35rem;text-align:left;cursor:pointer;scroll-snap-align:start}
#app .s4aWorkItem:hover{border-color:currentColor}
#app .s4aWorkItem:focus-visible{outline:3px solid currentColor;outline-offset:2px}
#app .s4aWorkThumb{display:block;width:100%;height:130px;object-fit:contain;background:rgba(120,120,120,.08);border-radius:8px}
#app .s4aWorkLabel{display:block;width:100%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-size:.85rem;padding:0 .2rem}
#app .s4aPublicTeacherButton{margin-top:.8rem;width:100%;min-height:44px}
.s4aArtworkDialog{width:min(94vw,970px);max-width:94vw;max-height:94dvh;border:1px solid rgba(160,160,160,.32);border-radius:16px;padding:1rem;background:var(--surface,#181b21);color:var(--text,#fff);box-shadow:0 20px 90px rgba(0,0,0,.5)}
.s4aArtworkDialog::backdrop{background:rgba(0,0,0,.82)}
.s4aArtworkDialog .s4aDialogClose{display:block;margin-left:auto;min-height:44px}
.s4aArtworkDialog .s4aArtworkFull{display:block;max-width:100%;max-height:72dvh;width:auto;height:auto;object-fit:contain;margin:0 auto}
.s4aArtworkDialog .s4aArtworkCaption{text-align:center;margin:.7rem 0 0;overflow-wrap:anywhere}
#app .s4aTeacherProfileWrap{padding-block:2rem}
#app .s4aTeacherProfile{margin-top:1.2rem;display:flex;align-items:flex-start;gap:1.5rem}
#app .s4aTeacherPortrait{width:min(260px,36%);aspect-ratio:3/4;object-fit:cover;border-radius:12px}
#app .s4aTeacherProfileContent{min-width:0;overflow-wrap:anywhere}
#app .s4aManageFeatured{margin-top:1.4rem}
#app .s4aManageFeatured h2{font-size:1.3rem;margin-bottom:.45rem}
#app .s4aUploadLine{display:flex;align-items:center;flex-wrap:wrap;gap:.65rem;margin-block:1rem}
#app .s4aUploadLine input[type=file]{flex:1 1 240px;max-width:100%;min-width:0}
#app .s4aManageRow{display:grid;grid-template-columns:90px minmax(0,1fr);gap:.75rem;padding:.85rem 0;border-top:1px solid rgba(140,140,140,.2)}
#app .s4aManageThumb{width:90px;height:100px;object-fit:contain;background:rgba(140,140,140,.08);border-radius:8px}
#app .s4aManageInfo{min-width:0;display:flex;flex-direction:column;gap:.5rem}
#app .s4aManageInfo input:not([type=checkbox]){width:100%;min-width:0;max-width:100%}
#app .s4aVisibility{display:flex;align-items:center;gap:.3rem;font-size:.9rem}
#app .s4aManageActions{grid-column:1/-1;display:flex;flex-wrap:wrap;gap:.5rem}
#app .s4aManageActions button{min-height:44px}
#app .s4aManagerStatus{min-height:1.2em;overflow-wrap:anywhere}
@media(max-width:560px){
 #app .s4aWorkItem{flex-basis:132px}
 #app .s4aWorkThumb{height:115px}
 #app .s4aTeacherProfile{flex-direction:column}
 #app .s4aTeacherPortrait{width:min(100%,260px)}
 #app .s4aManageRow{grid-template-columns:70px minmax(0,1fr)}
 #app .s4aManageThumb{width:70px;height:90px}
 #app .s4aUploadLine button{width:100%}
}
@media(prefers-reduced-motion:reduce){
 #app .s4aWorksTrack{scroll-behavior:auto}
}

/* S4A RC1 MEDIA COLUMN: thumbnails belong immediately under each portrait. */
#app .s4aTeacherMediaColumn{min-width:0;width:100%;display:flex;flex-direction:column;gap:.35rem}
#app .cards>.card>.s4aTeacherMediaColumn>img{width:100%;height:420px;max-width:100%;object-fit:cover;display:block}
#app .s4aTeacherMediaColumn>.s4aTeacherShowcase{width:100%;margin:.25rem 0 .6rem;padding:.6rem .65rem 0;box-sizing:border-box}
#app .s4aTeacherMediaColumn .s4aWorksTrack{min-width:0;max-width:100%;width:100%}
#app .s4aTeacherProfile>.s4aTeacherMediaColumn{width:min(320px,38%);flex:0 0 auto}
#app .s4aTeacherProfile>.s4aTeacherMediaColumn>.s4aTeacherPortrait{width:100%;height:auto;max-height:460px;aspect-ratio:3/4;object-fit:cover}
#app .s4aTeacherProfileContent{flex:1}
@media(max-width:560px){
 #app .cards>.card>.s4aTeacherMediaColumn>img{height:300px}
 #app .s4aTeacherProfile>.s4aTeacherMediaColumn{width:100%}
 #app .s4aTeacherProfile>.s4aTeacherMediaColumn>.s4aTeacherPortrait{max-height:380px}
 #app .s4aTeacherMediaColumn .s4aWorkItem{flex-basis:122px}
}