/* BIM-Viewer (bim-modell.html) */
.mv-section{padding-top:32px;padding-bottom:64px;}
.mv{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:20px;align-items:start;}
.mv-stage{position:relative;height:min(68vh,620px);min-height:380px;border-radius:var(--r-md);background:linear-gradient(180deg,#FBFBFD 0%,var(--bg-alt) 100%);border:1px solid var(--border);overflow:hidden;}
.mv-stage canvas{display:block;width:100%;height:100%;cursor:grab;}
.mv-stage canvas:active{cursor:grabbing;}
.mv-status{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;padding:24px;text-align:center;color:var(--muted);font-size:16px;}
.mv-status[hidden]{display:none;}
.mv-hint{position:absolute;left:12px;bottom:12px;right:60px;font-size:13px;color:var(--muted);pointer-events:none;}
.mv-home{position:absolute;right:12px;bottom:12px;width:40px;height:40px;border-radius:50%;border:1px solid var(--border);background:rgba(255,255,255,.92);color:var(--text);font-size:19px;line-height:1;cursor:pointer;display:flex;align-items:center;justify-content:center;}
.mv-home:hover{border-color:var(--laser);color:var(--laser);}
.mv:not(.is-ready) .mv-hint,.mv:not(.is-ready) .mv-home{display:none;}
.mv-side{display:flex;flex-direction:column;gap:16px;}
.mv-box{background:var(--surface);border:1px solid var(--border);border-radius:var(--r-sm);padding:16px;}
.mv-embed{padding-top:8px;}
.mv-lead{text-align:center;color:var(--muted);font-size:clamp(17px,2.4vw,19px);max-width:620px;margin:-8px auto 24px;line-height:1.4;}
.mv-box h2,.mv-box h3{font-family:var(--f-head);font-size:15px;font-weight:600;letter-spacing:-.01em;margin-bottom:10px;}
.mv-seg{display:flex;background:var(--bg-alt);border-radius:10px;padding:3px;gap:2px;}
.mv-seg label{flex:1;position:relative;}
.mv-seg input{position:absolute;opacity:0;pointer-events:none;}
.mv-seg span{display:block;text-align:center;padding:7px 4px;border-radius:8px;font-size:14px;cursor:pointer;color:var(--muted);}
.mv-seg input:checked+span{background:var(--surface);color:var(--text);font-weight:600;box-shadow:0 1px 3px rgba(0,0,0,.12);}
.mv-seg input:focus-visible+span{outline:3px solid rgba(0,113,227,.4);}
.mv-range{width:100%;accent-color:var(--laser);}
.mv-range-labels{display:flex;justify-content:space-between;font-size:12px;color:var(--faint);margin-top:2px;}
.mv-info-empty{font-size:14px;color:var(--muted);}
.mv-info dl{display:grid;grid-template-columns:auto 1fr;gap:6px 12px;font-size:14px;}
.mv-info dl[hidden]{display:none;}
.mv-info dt{color:var(--muted);}
.mv-info dd{color:var(--text);overflow-wrap:anywhere;}
.mv.is-error .mv-side{display:none;}
.mv-note{font-size:13px;color:var(--faint);margin-top:14px;}
@media (max-width:900px){
  .mv{grid-template-columns:1fr;}
  .mv-stage{height:56vh;min-height:320px;}
  .mv-side{display:grid;grid-template-columns:1fr 1fr;}
  .mv-side .mv-info{grid-column:1 / -1;order:-1;}
}
@media (max-width:560px){
  .mv-side{grid-template-columns:1fr;}
  .mv-section{padding-top:20px;}
}