/* Medi.kharousi anatomy atlas — layout per approved concept: layers panel · dark stage · detail panel · preset strip */
.atlas-page{--a-ink:var(--ink);--a-muted:var(--muted);--a-teal:var(--teal-ink);--a-line:var(--line);--a-card:var(--surface);--stage:#0c1721;--stage-2:#1a2b3a;color:var(--a-ink)}
[data-theme=dark] .atlas-page{--a-teal:var(--teal)}
.atlas-page *{box-sizing:border-box}.atlas-page [hidden]{display:none!important}
.atlas-page button{font:inherit;color:inherit;cursor:pointer}
.atlas-page .page-h{margin-bottom:1.2rem;max-width:none;display:flex;flex-wrap:wrap;align-items:baseline;gap:.4rem 1.5rem}
.atlas-page .page-h h1{font-size:clamp(1.5rem,2.4vw,2rem);margin:0}
.atlas-page .page-h .lede{font-size:1rem;margin:0;color:var(--a-muted)}
.atlas-workspace{display:grid;grid-template-columns:19rem minmax(0,1fr) 20rem;gap:1rem;align-items:stretch;height:min(78vh,780px);min-height:560px}
.atlas-panel{background:var(--a-card);border:1px solid var(--a-line);border-radius:var(--r-l);padding:1.1rem 1.15rem;min-width:0;overflow:auto;scrollbar-width:thin;display:flex;flex-direction:column;gap:.75rem}
.panel-title{display:flex;align-items:center;justify-content:space-between;gap:.5rem}
.panel-title h2{font-size:1.15rem;margin:0;font-weight:600;display:flex;align-items:center;gap:.5rem}
.panel-title .ic{color:var(--a-teal)}
.sex-toggle{display:grid;grid-template-columns:1fr 1fr;background:var(--sunk);border-radius:999px;padding:3px}
.sex-toggle button{border:0;background:none;border-radius:999px;padding:.4rem;font-size:.92rem;color:var(--a-muted)}
.sex-toggle button[aria-pressed=true]{background:var(--teal);color:#fff;font-weight:500}
[data-theme=dark] .sex-toggle button[aria-pressed=true]{color:#04252A}
.sex-toggle button[disabled]{cursor:not-allowed;opacity:.65}
.sex-note{font-size:.78rem;color:var(--a-muted);margin:-.3rem 0 0;line-height:1.5}
.search-wrap{position:relative;display:flex;align-items:center;gap:.5rem;border:1px solid var(--a-line);border-radius:999px;padding:.45rem .9rem;background:var(--paper)}
.search-wrap .ic{color:var(--a-muted)}
.search-wrap input{border:0;min-width:0;width:100%;background:transparent;outline:none;font:inherit;font-size:.95rem;color:inherit}
#search-count{font-size:.78rem;color:var(--a-muted);margin:-.4rem 0 0}
#structure-results{display:grid;gap:.25rem;max-height:14rem;overflow:auto;border:1px solid var(--a-line);border-radius:var(--r);padding:.35rem;background:var(--a-card)}
.result-button{text-align:start;border:0;background:none;border-radius:var(--r-s);padding:.4rem .6rem;font-size:.92rem;display:flex;justify-content:space-between;gap:.5rem;align-items:baseline}
.result-button small{color:var(--a-muted);font-size:.75rem}
.result-button:hover,.result-button[aria-pressed=true]{background:var(--teal-soft)}
#layer-controls{display:grid;gap:.4rem}
.layer-row{display:grid;grid-template-columns:auto auto minmax(0,1fr) 2.6rem;align-items:center;gap:.6rem;border:1px solid var(--a-line);border-radius:14px;padding:.45rem .7rem;background:var(--a-card);text-align:start;transition:background .15s,border-color .15s}
.layer-row:hover{border-color:var(--teal)}
.layer-row[aria-pressed=true]{background:color-mix(in srgb,var(--teal) 9%,var(--a-card));border-color:color-mix(in srgb,var(--teal) 45%,var(--a-line))}
.layer-row[aria-pressed=false]{opacity:.62}
.layer-row .eye svg{width:1.15rem;height:1.15rem;fill:none;stroke:currentColor;stroke-width:1.6;color:var(--a-muted)}
.layer-row[aria-pressed=true] .eye svg{color:var(--a-teal)}
.layer-dot{width:.7rem;height:.7rem;border-radius:50%;background:var(--layer-color);box-shadow:0 0 0 3px color-mix(in srgb,var(--layer-color) 22%,transparent)}
.layer-name{font-size:.95rem;line-height:1.4;display:flex;flex-direction:column}
.layer-name small{font-size:.72rem;color:var(--a-muted)}
.layer-thumb{width:2.6rem;height:2.6rem;object-fit:contain;border-radius:8px;background:radial-gradient(circle,#1a2b3a,#0c1721)}
.alpha{margin-top:auto;padding-top:.6rem;border-top:1px solid var(--a-line)}
.alpha label{display:flex;justify-content:space-between;font-size:.9rem;margin-bottom:.3rem}
.alpha b{font-weight:500;color:var(--a-teal)}
.alpha input{width:100%;accent-color:var(--teal)}
.text-button{background:none;border:0;color:var(--a-teal);font-size:.88rem;padding:.3rem 0;text-align:start}
.atlas-stage{position:relative;border-radius:var(--r-l);overflow:hidden;background:radial-gradient(ellipse at 50% 35%,var(--stage-2),var(--stage) 70%);min-height:420px;box-shadow:inset 0 0 0 1px rgba(255,255,255,.06)}
#body-viewport{position:absolute;inset:0;cursor:grab;outline-offset:-3px;touch-action:none}
#body-viewport canvas{display:block;width:100%!important;height:100%!important}
#model-loading,#model-error,#load-gate{position:absolute;inset:0;display:grid;place-items:center;align-content:center;gap:.4rem;text-align:center;color:#dbe8ee;padding:1.5rem;z-index:3}
#model-loading strong{font-weight:500;font-size:1.05rem}#model-loading p,#load-gate p{color:#9fb4bf;font-size:.9rem;max-width:26rem}
#load-progress{font-family:var(--font-lat);font-size:1.6rem;font-weight:300;color:#6fd3dc}
.loader-ring{width:46px;height:46px;border-radius:50%;border:3px solid rgba(255,255,255,.12);border-top-color:#3cc0c8;animation:spin 1s linear infinite;margin-bottom:.6rem}
@keyframes spin{to{transform:rotate(360deg)}}
#model-error h2{color:#fff;font-size:1.1rem;margin:0}#model-error p{color:#c9d8df;max-width:26rem}
#model-error button,#load-gate button{border:0;border-radius:999px;padding:.55rem 1.3rem;background:var(--teal);color:#fff;font-weight:500}
#hover-label{position:absolute;z-index:4;pointer-events:none;background:rgba(10,20,28,.9);color:#eaf4f7;font-size:.85rem;padding:.25rem .6rem;border-radius:7px;border:1px solid rgba(60,192,200,.5)}
#selection-label{position:absolute;z-index:4;pointer-events:none;transform:translate(-50%,-50%);display:flex;align-items:center;gap:0}
#selection-label i{width:9px;height:9px;border-radius:50%;background:#3cc0c8;box-shadow:0 0 0 4px rgba(60,192,200,.25),0 0 14px #3cc0c8}
#selection-label span{margin-inline-start:52px;position:relative;background:rgba(10,20,28,.92);color:#eaf4f7;border:1px solid #3cc0c8;border-radius:9px;padding:.3rem .8rem;font-size:.92rem;white-space:nowrap}
#selection-label span::before{content:"";position:absolute;inset-inline-end:100%;top:50%;width:48px;height:1px;background:#3cc0c8}
.stage-views{position:absolute;z-index:5;top:1rem;inset-inline-start:1rem;display:grid;gap:.35rem}
.stage-views button{min-width:4.4rem;border:1px solid rgba(255,255,255,.22);background:rgba(10,20,28,.6);color:#eaf4f7;border-radius:999px;padding:.35rem .9rem;font-size:.9rem;backdrop-filter:blur(6px)}
.stage-views button[aria-pressed=true]{border-color:#3cc0c8;color:#9fe6ec;box-shadow:0 0 0 2px rgba(60,192,200,.25)}
.stage-tools{position:absolute;z-index:5;bottom:1rem;inset-inline-end:1rem;display:grid;gap:.35rem}
.stage-tools button{width:2.6rem;height:2.6rem;border-radius:50%;border:1px solid rgba(255,255,255,.22);background:rgba(10,20,28,.6);color:#eaf4f7;font-size:1.2rem;display:grid;place-items:center;backdrop-filter:blur(6px)}
.stage-tools button:hover{border-color:#3cc0c8}
.stage-tools .ic{width:1.1rem;height:1.1rem;stroke-width:1.7}
#view-cube{position:absolute;z-index:5;bottom:1rem;inset-inline-start:1rem;width:92px;height:92px;cursor:pointer;opacity:.9}
#view-cube canvas{width:92px!important;height:92px!important}
#stage-hint{position:absolute;z-index:4;bottom:1.1rem;left:50%;transform:translateX(-50%);color:#9fb4bf;font-size:.78rem;white-space:nowrap;transition:opacity .4s}
#stage-hint.seen{opacity:0}
#visible-count{position:absolute;z-index:4;top:1rem;inset-inline-end:1rem;color:#7f97a3;font:.75rem var(--font-lat)}
.detail-panel .crumb{display:flex;flex-wrap:wrap;align-items:center;gap:.3rem;font-size:.8rem;color:var(--a-muted)}
.crumb>*+*::before{content:"›";margin-inline-end:.3rem;color:var(--a-muted)}
.crumb button{border:0;background:none;color:var(--a-teal);padding:0;font-size:.8rem}
.crumb [aria-current]{color:var(--a-ink)}
.detail-head{display:flex;align-items:flex-start;justify-content:space-between;gap:.5rem}
.detail-head h2{font-size:1.5rem;margin:0;font-weight:500;line-height:1.3}
#selected-english{font-family:var(--font-lat);color:var(--a-muted);margin:.1rem 0 0;font-size:.95rem}
#spin-preview{width:2.4rem;height:2.4rem;border-radius:50%;border:1px solid var(--a-line);background:var(--paper);display:grid;place-items:center;color:var(--a-teal);flex:none}
#spin-preview[aria-pressed=true]{background:var(--teal-soft);border-color:var(--teal)}
#detail-viewport{height:230px;min-height:200px;border-radius:var(--r);background:radial-gradient(circle at 50% 40%,color-mix(in srgb,var(--teal) 10%,var(--paper)),var(--paper) 72%);overflow:hidden}
#detail-viewport canvas{display:block;width:100%!important;height:100%!important}
#selected-parts{display:flex;flex-wrap:wrap;gap:.35rem}
.part-chip{border:1px solid var(--a-line);background:var(--a-card);border-radius:999px;padding:.25rem .75rem;font-size:.85rem}
.part-chip[aria-pressed=true]{border-color:var(--teal);background:var(--teal-soft);color:var(--a-teal)}
.part-more{font-size:.8rem;color:var(--a-muted);align-self:center}
.detail-actions{display:grid;grid-template-columns:1fr 1fr;gap:.5rem}
.detail-actions a,.detail-actions button{display:inline-flex;align-items:center;justify-content:center;gap:.4rem;min-height:2.8rem;border-radius:12px;font-weight:500;font-size:.95rem;text-decoration:none;border:1px solid var(--a-line);background:var(--a-card);color:var(--a-ink)}
.detail-actions .primary{background:var(--ink);color:var(--paper);border-color:var(--ink)}
.detail-actions .primary[aria-disabled=true]{opacity:.45;pointer-events:none}
.detail-actions button[aria-pressed=true]{border-color:var(--teal);color:var(--a-teal);background:var(--teal-soft)}
#selected-info p{margin:0 0 .5rem;font-size:.92rem;line-height:1.7}
.info-note{color:var(--a-muted);font-size:.85rem!important}
.info-source{font-size:.8rem!important;color:var(--a-muted)}
.atlas-strip{display:grid;grid-template-columns:18rem minmax(0,1fr);gap:1rem;align-items:center;margin-top:1rem;background:var(--a-card);border:1px solid var(--a-line);border-radius:var(--r-l);padding:1rem 1.25rem}
.atlas-strip h2{font-size:1.25rem;margin:0 0 .25rem}
.atlas-strip p{margin:0;color:var(--a-muted);font-size:.9rem}
#preset-strip{display:flex;gap:.6rem;overflow-x:auto;padding:.2rem;scroll-snap-type:x proximity}
#preset-strip button{position:relative;flex:0 0 9.5rem;aspect-ratio:3/3.6;border-radius:14px;overflow:hidden;border:2px solid transparent;background:radial-gradient(circle at 50% 30%,#223447,#0c1721 75%);padding:0;scroll-snap-align:start;transition:border-color .15s,transform .15s}
#preset-strip button:hover{transform:translateY(-2px)}
#preset-strip button[aria-pressed=true]{border-color:var(--teal);box-shadow:0 0 0 3px color-mix(in srgb,var(--teal) 25%,transparent)}
#preset-strip img{position:absolute;inset:0;width:100%;height:100%;object-fit:contain;padding:.4rem .4rem 2rem}
#preset-strip .thumb-fallback{position:absolute;inset:0}
#preset-strip span{position:absolute;bottom:.5rem;inset-inline-start:.6rem;display:inline-flex;align-items:center;gap:.35rem;color:#eaf4f7;font-size:.85rem;background:rgba(10,20,28,.7);padding:.15rem .6rem;border-radius:999px}
#preset-strip span i{width:.55rem;height:.55rem;border-radius:50%;background:var(--layer-color)}
#preset-strip .tick{position:absolute;top:.5rem;inset-inline-end:.5rem;width:1.4rem;height:1.4rem;border-radius:50%;background:var(--teal);color:#fff;font-size:.8rem;display:grid;place-items:center;opacity:0}
#preset-strip button[aria-pressed=true] .tick{opacity:1}
.atlas-credit{font-size:.8rem;color:var(--a-muted);margin:.8rem 0 0;font-family:var(--font-lat);text-align:center}
#coverage-dialog{position:relative;padding:1.5rem 1.4rem}#coverage-dialog #close-coverage{position:absolute;inset-inline-end:.6rem;top:.6rem}
#coverage-dialog h2{font-size:1.2rem;margin:0 0 .6rem}#coverage-dialog p{font-size:.95rem;line-height:1.75}
@media (max-width:1180px){.atlas-workspace{grid-template-columns:16rem minmax(0,1fr) 17rem;gap:.75rem}.atlas-panel{padding:.9rem}}
@media (max-width:900px){
 .atlas-workspace{grid-template-columns:1fr 1fr;height:auto}
 .atlas-stage{grid-column:1/-1;grid-row:1;height:62vh;min-height:420px}
 .detail-panel{grid-column:1;grid-row:2}.layers-panel{grid-column:2;grid-row:2;max-height:560px}
 .atlas-strip{grid-template-columns:1fr}
}
@media (max-width:620px){
 .atlas-workspace{grid-template-columns:1fr;gap:.6rem}
 .atlas-stage{height:60vh;min-height:380px;border-radius:14px}
 .detail-panel{grid-column:1;grid-row:2}.layers-panel{grid-column:1;grid-row:3;max-height:none}
 .atlas-page .page-h{margin-bottom:.8rem}
 .stage-views button{min-width:3.6rem;padding:.3rem .6rem;font-size:.82rem}
 #view-cube{width:72px;height:72px}#view-cube canvas{width:72px!important;height:72px!important}
 .stage-tools button{width:2.3rem;height:2.3rem}
 #preset-strip button{flex-basis:7.5rem}
 #stage-hint{display:none}
}
@media (prefers-reduced-motion:reduce){.atlas-page *{animation:none!important;transition:none!important}}

.quiz-start{margin-top:.8rem;display:inline-flex;align-items:center;gap:.45rem;border:1px solid var(--teal);background:var(--teal-soft);color:var(--a-teal);border-radius:999px;padding:.45rem 1rem;font-weight:500}
.quiz-start[aria-pressed=true]{background:var(--teal);color:#fff}
#quiz-bar{position:absolute;z-index:6;top:1rem;left:50%;transform:translateX(-50%);width:min(26rem,calc(100% - 10rem));background:rgba(10,20,28,.92);border:1px solid #3cc0c8;border-radius:16px;padding:.8rem 1rem;color:#eaf4f7;text-align:center;backdrop-filter:blur(6px)}
.quiz-q{display:grid;gap:.15rem}#quiz-progress{font:.78rem var(--font-lat);color:#9fb4bf}#quiz-question{font-size:1.15rem;font-weight:500}
#quiz-feedback{margin:.4rem 0 .5rem;font-size:.92rem;min-height:1.4em}#quiz-feedback.ok{color:#7ee0a1}#quiz-feedback.no{color:#f5a99f}
.quiz-actions{display:flex;justify-content:center;gap:.5rem}.quiz-actions button{border:1px solid rgba(255,255,255,.25);background:transparent;color:#eaf4f7;border-radius:999px;padding:.25rem .9rem;font-size:.85rem}
@media (max-width:620px){#quiz-bar{width:calc(100% - 1.5rem);top:auto;bottom:4.2rem}}

/* 2k.6: Arabic + English name under the preview */
.detail-caption{display:flex;flex-wrap:wrap;gap:.35rem .55rem;justify-content:center;align-items:baseline;margin:.5rem 0 0;font-size:.98rem;font-weight:600;line-height:1.4}
.detail-caption[hidden]{display:none}
.detail-caption [lang=en]{font-family:var(--font-lat);font-weight:500;color:var(--a-muted)}
.detail-caption .sep{color:var(--a-muted);font-weight:400}