/* ============ FACILITY 3D VIEW (scoped .m3d-*; was css/model3d.css) ============ */
.m3d{display:flex;flex-direction:column;gap:12px;height:calc(100vh - 140px);min-height:520px}
.m3d-head{display:flex;align-items:center;gap:14px;flex-wrap:wrap;padding:12px 16px}
.m3d-titles{min-width:0;flex:1 1 320px}
.m3d-flag{display:inline-block;font-weight:700;color:#a16207;background:var(--mod-bg);border-radius:6px;padding:1px 7px;margin-right:8px}
.m3d-stats{color:var(--ink-3)}
.m3d-tools{display:flex;align-items:center;gap:6px;flex-wrap:wrap}
.m3d-sep{width:1px;height:22px;background:var(--line);margin:0 4px}
.m3d-tools .btn.m3d-on{background:var(--info-bg);border-color:var(--blue);color:var(--blue)}
.m3d-stage{position:relative;flex:1;min-height:0;border-radius:var(--radius);overflow:hidden;border:1px solid var(--line);
  background:linear-gradient(180deg,#c9def0 0%,#e4edf5 55%,#eef2f6 100%);box-shadow:var(--shadow)}
.m3d-canvas{position:absolute;inset:0;width:100%;height:100%;display:block;touch-action:none;outline:none}
.m3d-loading{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;color:var(--ink-3);font-weight:600;font-size:.9rem}
.m3d-loading.m3d-error{color:var(--crit)}
.m3d-loading.m3d-venue-error{color:var(--ink);text-align:center;padding:24px;line-height:1.45;
  overflow:auto;overscroll-behavior:contain;align-items:flex-start}   /* R-L-E2b1 F2: a short host (280 px) scrolls the open Details */
.m3d-venue-error .m3d-venue-msg{margin:auto}
.m3d-venue-error b{display:block;font-size:.95rem;margin-bottom:6px}
.m3d-venue-problem{color:var(--ink-3);font-weight:400;font-size:.78rem;max-width:560px;margin:2px auto 0}
/* L-E2b1: customer copy for a model that can't be drawn; the problem lines sit in a closed disclosure for staff */
.m3d-venue-msg{max-width:440px;margin:0 auto}
.m3d-venue-line{margin:0 0 10px;color:var(--ink-2);font-weight:400;font-size:.86rem}
.m3d-venue-details{display:inline-block;max-width:100%;text-align:left}
.m3d-venue-details summary{cursor:pointer;list-style:none;display:inline-flex;align-items:center;gap:8px;min-height:44px;padding:0 12px;
  border-radius:var(--radius-s);color:var(--ink-3);font-size:.8rem;font-weight:600;-webkit-tap-highlight-color:transparent}
.m3d-venue-details summary::-webkit-details-marker{display:none}
.m3d-venue-details summary::before{content:'';width:0;height:0;border-left:5px solid var(--ink-4);border-top:4px solid transparent;border-bottom:4px solid transparent;transition:transform .15s}
.m3d-venue-details[open] summary::before{transform:rotate(90deg)}
.m3d-venue-details summary:hover{background:rgba(15,23,42,.05)}
.m3d-venue-details summary:focus-visible{outline:2px solid var(--sky);outline-offset:2px}
.m3d-venue-details .m3d-venue-problem{margin:4px 12px 0;max-width:none}
.m3d-tip{position:absolute;left:0;top:0;pointer-events:none;background:var(--navy-900);color:#fff;font-size:.76rem;font-weight:600;
  padding:6px 10px;border-radius:8px;box-shadow:var(--shadow-lg);white-space:nowrap;z-index:3}
.m3d-legend{position:absolute;left:12px;bottom:12px;display:flex;gap:12px;flex-wrap:wrap;background:rgba(255,255,255,.9);border:1px solid var(--line);
  border-radius:var(--radius-s);padding:6px 10px;font-size:.72rem;color:var(--ink-2);z-index:2}
.m3d-legend span{display:inline-flex;align-items:center;gap:6px}
.m3d-sw{display:inline-block;width:12px;height:12px;border-radius:3px}
.m3d-sw-open{background:linear-gradient(135deg,#b8e2b4 0 50%,transparent 50%),repeating-linear-gradient(90deg,#4fae24 0 3px,#b8e2b4 3px 6px)}
.m3d-hint{position:absolute;right:12px;bottom:12px;font-size:.7rem;color:var(--ink-3);background:rgba(255,255,255,.8);border-radius:var(--radius-s);padding:5px 9px;z-index:2}
.m3d-panel,.m3d-sources{position:absolute;top:12px;right:12px;bottom:12px;width:330px;max-width:calc(100% - 24px);overflow:auto;background:var(--card);
  border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow-lg);padding:14px 16px;z-index:4}
.m3d-sources{width:420px;left:auto}
.m3d-panel[hidden],.m3d-sources[hidden],.m3d-tip[hidden]{display:none}
.m3d-panel-head{display:flex;align-items:flex-start;gap:8px;margin-bottom:10px}
.m3d-panel-head>div{flex:1;min-width:0}
.m3d-panel-kicker{font-size:.68rem;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:var(--sky)}
.m3d-panel-title{font-size:1.02rem;font-weight:700;color:var(--ink)}
.m3d-x{padding:2px 8px}
.m3d-dl{display:grid;grid-template-columns:auto 1fr;gap:7px 12px;font-size:.8rem;margin:0}
.m3d-dl dt{color:var(--ink-3);font-weight:600}
.m3d-dl dd{margin:0;color:var(--ink);word-break:break-word}
.m3d-panel-foot{display:flex;gap:8px;flex-wrap:wrap;margin-top:14px}
.m3d-panel-note{margin-top:12px;font-size:.7rem;color:var(--ink-4)}
.m3d-src-lede{font-size:.78rem;color:var(--ink-2);margin:0 0 10px;line-height:1.45}
.m3d-src-list{display:flex;flex-direction:column;gap:8px}
.m3d-src-row{border:1px solid var(--line);border-radius:var(--radius-s);padding:8px 10px}
.m3d-src-top{display:flex;align-items:center;justify-content:space-between;gap:8px;font-size:.8rem}
.m3d-src-val{font-size:.78rem;color:var(--ink);margin-top:3px}
.m3d-src-from{font-size:.72rem;color:var(--ink-3);margin-top:3px;line-height:1.4}
@media (max-width:780px){
  .m3d{height:calc(100vh - 118px);min-height:560px;gap:10px}
  .m3d-head{padding:10px 12px}
  .m3d-tools{flex-wrap:nowrap;overflow-x:auto;width:100%;padding-bottom:2px}
  .m3d-tools .btn{flex-shrink:0}
  .m3d-hint{display:none}
  .m3d-legend{left:8px;right:8px;bottom:8px;gap:8px}
  .m3d-panel,.m3d-sources{top:auto;left:8px;right:8px;bottom:8px;width:auto;max-height:58%}
}

/* ---- B2 maintenance layer ---- */
.m3d-pin-sw{display:inline-block;width:10px;height:13px;background:#dc2626;border:1.5px solid #fff;border-radius:50% 50% 50% 50%/60% 60% 40% 40%;box-shadow:0 1px 2px rgba(15,23,42,.35)}
.m3d-legend[hidden],.m3d-pinbar[hidden],.m3d-parts[hidden],.m3d-walk[hidden]{display:none}
.m3d-pinbar{position:absolute;top:12px;left:50%;transform:translateX(-50%);display:flex;align-items:center;gap:10px;z-index:5;
  background:var(--navy-900);color:#fff;border-radius:var(--radius-s);padding:7px 8px 7px 14px;font-size:.8rem;box-shadow:var(--shadow-lg);max-width:calc(100% - 24px)}
.m3d-pinbar b{color:var(--sky-l);font-weight:700;white-space:nowrap}
.m3d-pinbar-txt b{margin-right:6px}
.m3d-pinbar.m3d-pinbar-warn .m3d-pinbar-msg{color:#fed7aa}
.m3d-pinbar .btn{background:rgba(255,255,255,.12);border-color:rgba(255,255,255,.25);color:#fff}
.m3d-pinning .m3d-canvas{cursor:crosshair}
.m3d-tools .btn[data-tog="pin"].m3d-on{background:var(--navy-900);border-color:var(--navy-900);color:#fff}
.m3d-parts{position:absolute;top:12px;left:12px;bottom:56px;width:280px;max-width:calc(100% - 24px);display:flex;flex-direction:column;background:var(--card);
  border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow-lg);padding:14px 12px 10px 14px;z-index:4}
.m3d-parts-q{width:100%;margin:0 0 8px;font:inherit;font-size:.8rem;padding:7px 10px;border:1px solid var(--line-d);border-radius:var(--radius-s);background:#fff;color:var(--ink)}
.m3d-parts-q:focus{outline:2px solid var(--info-bg);border-color:var(--blue)}
.m3d-parts-body{flex:1;min-height:0;overflow:auto;padding-right:2px}
.m3d-pgroup{border-top:1px solid var(--line);padding:4px 0}
.m3d-pgroup summary{cursor:pointer;list-style:none;display:flex;align-items:center;gap:6px;font-size:.78rem;font-weight:700;color:var(--ink-2);padding:6px 2px}
.m3d-pgroup summary::-webkit-details-marker{display:none}
.m3d-pgroup summary::before{content:'';width:0;height:0;border-left:5px solid var(--ink-4);border-top:4px solid transparent;border-bottom:4px solid transparent;transition:transform .15s}
.m3d-pgroup[open] summary::before{transform:rotate(90deg)}
.m3d-pgroup summary em{font-style:normal;font-weight:600;color:var(--ink-4)}
.m3d-pgroup-open{margin-left:auto;font-size:.68rem;font-weight:700;color:var(--crit)}
.m3d-prow{display:flex;align-items:center;gap:8px;width:100%;text-align:left;font:inherit;font-size:.78rem;color:var(--ink);background:none;border:0;border-radius:7px;padding:5px 6px;cursor:pointer}
.m3d-prow:hover{background:#f1f5f9}
.m3d-prow-sel{background:var(--info-bg)}
.m3d-prow b{min-width:38px;font-weight:700}
.m3d-prow span{flex:1;color:var(--ink-3);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.m3d-cnt{font-style:normal;min-width:18px;height:18px;border-radius:9px;color:#fff;font-size:.66rem;font-weight:800;display:inline-flex;align-items:center;justify-content:center;padding:0 5px}
.m3d-pills{display:flex;gap:6px;flex-wrap:wrap;margin:0 0 12px}
.m3d-desc{margin-top:12px;font-size:.8rem;line-height:1.5;background:#f8fafc;border:1px solid var(--line);border-radius:var(--radius-s);padding:9px 12px;color:var(--ink-2)}
.m3d-defs{margin-top:14px;border-top:1px solid var(--line);padding-top:10px}
.m3d-defs-h{font-size:.68rem;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:var(--ink-3);margin-bottom:6px}
.m3d-defs-none{font-size:.78rem;color:var(--ink-4);padding:4px 0}
.m3d-def{display:flex;align-items:center;gap:8px;width:100%;text-align:left;font:inherit;font-size:.78rem;background:none;border:1px solid var(--line);border-radius:var(--radius-s);padding:7px 9px;margin-bottom:6px;cursor:pointer;color:var(--ink)}
.m3d-def:hover{border-color:var(--line-d);background:#f8fafc}
.m3d-def-hi{border-color:var(--blue);background:var(--info-bg)}
.m3d-def i{width:9px;height:9px;border-radius:50%;flex-shrink:0}
.m3d-def span{flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.m3d-def em{font-style:normal;font-size:.68rem;color:var(--ink-3);white-space:nowrap}
.m3d-walk{position:absolute;left:50%;bottom:14px;transform:translateX(-50%);width:min(620px,calc(100% - 24px));display:flex;align-items:center;gap:10px;z-index:5;
  background:rgba(255,255,255,.96);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow-lg);padding:8px 10px}
.m3d-walk-play{min-width:62px}
.m3d-walk-range{flex:1;min-width:60px;accent-color:var(--blue)}
.m3d-walk-read{font-size:.76rem;font-weight:700;color:var(--ink-2);white-space:nowrap;min-width:118px;text-align:right}
.m3d-walking .m3d-legend,.m3d-walking .m3d-hint{display:none}
.m3d-walking .m3d-panel{bottom:76px}
@media (max-width:780px){
  .m3d-panel,.m3d-sources,.m3d-parts{top:auto;left:0;right:0;bottom:0;width:auto;max-width:none;max-height:56%;
    border-radius:16px 16px 0 0;border-bottom:0;padding-top:20px}
  .m3d-panel::before,.m3d-sources::before,.m3d-parts::before{content:'';position:absolute;top:7px;left:50%;width:38px;height:4px;margin-left:-19px;border-radius:2px;background:var(--line-d)}
  .m3d-parts{max-height:62%}
  /* L-E2b1: the hint spans the stage (a centred shrink-to-fit bar got half the width: one word per line at 375) */
  .m3d-pinbar{top:8px;left:8px;right:8px;transform:none;max-width:none;font-size:.76rem;gap:8px;padding:4px 4px 4px 12px;line-height:1.35}
  .m3d-pinbar-txt{flex:1 1 auto;min-width:0}
  .m3d-pinbar .btn{flex:none;min-height:44px;min-width:64px}
  .m3d-walk{bottom:8px;gap:6px;padding:6px 8px}
  .m3d-walk-read{min-width:0;font-size:.7rem}
  .m3d-walking .m3d-panel{bottom:58px;border-radius:16px}
}

/* ============ B4b: two slides (slide filter, LED swatch, walk slide picker, two-row legend) ============ */
.m3d-seg{display:inline-flex;border:1px solid var(--line);border-radius:var(--radius-s);overflow:hidden;background:#fff}
.m3d-seg .btn{border:0;border-radius:0;box-shadow:none}
.m3d-seg .btn + .btn{border-left:1px solid var(--line)}
.m3d-seg .btn em{font-style:normal;font-weight:600;color:var(--ink-3);margin-left:4px;font-size:.92em}
.m3d-tools .m3d-seg .btn.m3d-on{background:var(--info-bg);color:var(--blue)}
.m3d-tools .m3d-seg .btn.m3d-on em{color:var(--blue)}
.m3d-sw-led{background:conic-gradient(#ffd21f 0 25%,#ff3b30 0 50%,#2f7bff 0 75%,#19c964 0)}
.m3d-legend{max-width:calc(100% - 500px)}   /* clears the bottom-right hint (~470 px) */
.m3d-walk-slide{font-size:.76rem;font-weight:600;padding:4px 6px;border:1px solid var(--line);border-radius:var(--radius-s);background:#fff;color:var(--ink-1);max-width:170px}
@media (max-width:780px){
  .m3d-legend{max-width:none}
  .m3d-seg{flex:0 0 auto}
  .m3d-seg .btn em{display:none}
  .m3d-walk{flex-wrap:wrap}
  .m3d-walk-slide{max-width:none;flex:1 1 100%}
}

/* ---- B6a: the camera stop select sits at the right end of the asset chip row ---- */
.m3d-preset{display:inline-flex;align-items:center;gap:6px;margin-left:auto;font-size:.8rem;font-weight:600;color:var(--ink-3)}
.m3d-preset select{font:inherit;font-weight:600;color:var(--ink);border:1px solid var(--line);border-radius:var(--radius-s);padding:5px 8px;background:#fff}

/* ---------- B5b-2: group chips, facility legend, facility panel, embed modes ---------- */
.m3d-gtools{display:flex;align-items:center;gap:6px;flex-wrap:wrap;width:100%;padding-top:8px;border-top:1px solid var(--line)}
.m3d-gtools[hidden]{display:none}
.m3d-gtools .btn{display:inline-flex;align-items:center;gap:6px}
.m3d-gtools .btn.m3d-on{background:var(--info-bg);border-color:var(--blue);color:var(--blue)}
.m3d-gdot{width:9px;height:9px;border-radius:50%;flex-shrink:0}
.m3d-legend-f b{font-weight:700;color:var(--ink-2)}
.m3d-notreg{margin:2px 0 10px;padding:7px 10px;border-radius:var(--radius-s);background:var(--warn-bg,#fef3c7);color:var(--warn,#92400e);font-size:.78rem;font-weight:600}
.m3d-also{margin:10px 0 4px;display:flex;flex-wrap:wrap;gap:6px}
.m3d-also .m3d-defs-h{width:100%}
.m3d-open3d{position:absolute;top:10px;right:10px;z-index:3;background:rgba(255,255,255,.94);box-shadow:0 2px 8px rgba(15,23,42,.12)}
@media (max-width:780px){
  .m3d-gtools{flex-wrap:nowrap;overflow-x:auto;padding-bottom:2px}
  .m3d-gtools .btn,.m3d-preset{flex-shrink:0}
}
/* overview: a dashboard card, the host sets the height */
.m3d.m3d-mode-overview,.m3d.m3d-mode-asset,.m3d.m3d-mode-defect{height:100%;min-height:0;gap:8px}
.m3d-mode-overview .m3d-legend,.m3d-mode-overview .m3d-hint,.m3d-mode-overview .m3d-panel,.m3d-mode-overview .m3d-parts,
.m3d-mode-defect .m3d-legend,.m3d-mode-defect .m3d-hint,.m3d-mode-defect .m3d-panel,.m3d-mode-defect .m3d-parts{display:none}
.m3d-mode-overview .m3d-canvas{cursor:pointer}
/* asset: compact head (title + slide tools only), narrow parts list */
.m3d-mode-asset .m3d-head{padding:10px 12px}
.m3d-mode-asset .m3d-tools > *{display:none}
.m3d-mode-asset.m3d-asset-slide .m3d-tools > [data-tog="xray"],.m3d-mode-asset.m3d-asset-slide .m3d-tools > [data-tog="walk"],.m3d-mode-asset .m3d-tools > [data-tog="parts"]{display:inline-flex}
.m3d-mode-asset .m3d-stats,.m3d-mode-asset .m3d-hint{display:none}
.m3d-mode-asset .m3d-parts{width:220px;bottom:12px}
.m3d-mode-asset .m3d-legend{display:none}
.m3d-head[hidden]{display:none}

/* ============ B6c-1: Inspect mode (toolbar entry, picker, bottom bar, checklist panel / sheet, clock, summary) ============ */
.m3d-tools .btn.m3d-insp-btn{border-color:var(--navy-900);color:var(--navy-900);font-weight:700}
.m3d-tools .btn.m3d-insp-btn.m3d-on{background:var(--navy-900);color:#fff}
.m3d-inspecting .m3d-tools > :not([data-tog="xray"]):not([data-tog="grid"]):not([data-act="inspect"]){display:none}
.m3d-inspecting .m3d-gtools,.m3d-inspecting .m3d-legend,.m3d-inspecting .m3d-hint,.m3d-inspecting .m3d-panel,.m3d-inspecting .m3d-parts,.m3d-inspecting .m3d-pinbar{display:none}
.m3d-clock[hidden],.m3d-insp-arm[hidden],.m3d-insp-bar[hidden],.m3d-insp-panel[hidden],.m3d-insp-pick[hidden],.m3d-insp-sum[hidden]{display:none}
.m3d-insp-pick,.m3d-insp-sum{position:absolute;top:12px;left:50%;transform:translateX(-50%);width:min(440px,calc(100% - 24px));max-height:calc(100% - 24px);overflow:auto;
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow-lg);padding:14px 16px;z-index:7}
.m3d-insp-sum{width:min(520px,calc(100% - 24px));top:50%;transform:translate(-50%,-50%)}
.m3d-ip-lbl{font-size:.68rem;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:var(--ink-3);margin:12px 0 6px}
.m3d-ip-seg{display:flex;flex-wrap:wrap;gap:6px}
.m3d-ip-seg .btn em{font-style:normal;font-weight:600;color:var(--ink-4);margin-left:4px}
.m3d-ip-seg .btn.m3d-on{background:var(--info-bg);border-color:var(--blue);color:var(--blue)}
.m3d-ip-seg .btn.m3d-on em{color:var(--blue)}
.m3d-ip-note{margin-top:12px;font-size:.78rem;line-height:1.45;color:var(--ink-2);background:#f8fafc;border:1px solid var(--line);border-radius:var(--radius-s);padding:8px 10px}
.m3d-ip-draft{display:flex;gap:10px;align-items:center;justify-content:space-between;margin:4px 0 6px;padding:9px 10px;border:1px solid #fcd34d;background:#fffbeb;border-radius:var(--radius-s)}
.m3d-ip-draft b{display:block;font-size:.8rem;color:var(--ink)}
.m3d-ip-draft span{display:block;font-size:.72rem;color:var(--ink-2);margin-top:2px;line-height:1.4}
.m3d-ip-draft-a{display:flex;gap:6px;flex-shrink:0}
.m3d-insp-pick .m3d-panel-foot,.m3d-insp-sum .m3d-panel-foot{display:flex;justify-content:flex-end;gap:8px;margin-top:14px}
/* bottom bar */
.m3d-insp-bar{position:absolute;left:12px;right:384px;bottom:12px;display:flex;align-items:center;gap:14px;z-index:5;background:rgba(255,255,255,.97);
  border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow-lg);padding:9px 12px}
.m3d-ib-main{flex:1;min-width:0}
.m3d-ib-top{display:flex;align-items:baseline;gap:10px;font-size:.78rem;color:var(--ink-2);white-space:nowrap;overflow:hidden}
.m3d-ib-top b{font-size:.86rem;color:var(--ink)}
.m3d-ib-type{color:var(--ink-3);font-weight:600}
.m3d-ib-step{font-weight:700;color:var(--navy-900)}
.m3d-ib-part{font-weight:700;color:var(--ink);background:#f1f5f9;border-radius:6px;padding:1px 7px}
.m3d-ib-ch{color:var(--ink-3)}
.m3d-ib-done-n{margin-left:auto;color:var(--ink-4);font-weight:600}
.m3d-ib-track{position:relative;height:14px;margin-top:7px;cursor:pointer}
.m3d-ib-track::before{content:'';position:absolute;left:0;right:0;top:5px;height:4px;border-radius:2px;background:var(--line)}
.m3d-ib-s{position:absolute;top:5px;height:4px}
.m3d-ib-s.m3d-ib-begun{background:#fbbf24}
.m3d-ib-s.m3d-ib-done{background:#4ade80}
.m3d-ib-s.m3d-ib-fl::after{content:'';position:absolute;left:50%;top:-5px;width:2px;height:14px;margin-left:-1px;border-radius:1px;background:var(--crit)}
.m3d-ib-s.m3d-ib-cur::before{content:'';position:absolute;left:50%;top:-4px;width:10px;height:10px;margin-left:-5px;border-radius:50%;background:var(--navy-900);border:2px solid #fff;box-shadow:0 1px 3px rgba(15,23,42,.35)}
.m3d-ib-ctl{display:flex;align-items:center;gap:6px;flex-shrink:0}
.m3d-ib-seg{display:inline-flex;border:1px solid var(--line);border-radius:var(--radius-s);overflow:hidden;background:#fff}
.m3d-ib-seg .btn{border:0;border-radius:0;box-shadow:none}
.m3d-ib-seg .btn + .btn{border-left:1px solid var(--line)}
.m3d-ib-seg .btn.m3d-on{background:var(--navy-900);color:#fff}
.m3d-ib-one{font-size:.74rem;font-weight:600;color:var(--ink-3);padding:0 4px}
/* checklist panel (right side), bottom sheet under 700 px */
.m3d-insp-panel{position:absolute;top:12px;right:12px;bottom:12px;width:360px;overflow:auto;background:var(--card);border:1px solid var(--line);
  border-radius:var(--radius);box-shadow:var(--shadow-lg);padding:14px 14px 12px;z-index:5}
.m3d-ip-faces{display:flex;gap:6px;margin:10px 0 4px}
.m3d-ip-face{flex:1;font:inherit;font-size:.78rem;font-weight:700;color:var(--ink-2);background:#f8fafc;border:1px solid var(--line);border-radius:var(--radius-s);padding:6px 8px;cursor:pointer;text-align:left}
.m3d-ip-face em{float:right;font-style:normal;font-weight:600;color:var(--ink-4)}
.m3d-ip-face.m3d-on{background:var(--navy-900);border-color:var(--navy-900);color:#fff}
.m3d-ip-face.m3d-on em{color:#cbd5e1}
.m3d-ip-face.m3d-ip-face-done:not(.m3d-on) em{color:var(--good)}
.m3d-ip-arm{margin:10px 0 2px;padding:9px 10px;border-radius:var(--radius-s);background:var(--navy-900);color:#fff;font-size:.78rem;line-height:1.4}
.m3d-ip-arm b{display:block;color:var(--sky-l);font-size:.8rem}
.m3d-ip-arm div{display:flex;gap:6px;margin-top:8px}
.m3d-ip-arm .btn{background:rgba(255,255,255,.12);border-color:rgba(255,255,255,.25);color:#fff}
.m3d-ip-msg{margin:8px 0 0;padding:7px 10px;border-radius:var(--radius-s);background:#fff7ed;color:#9a3412;font-size:.76rem;font-weight:600}
.m3d-ip-items{margin-top:8px;display:flex;flex-direction:column;gap:6px}
.m3d-ii{position:relative;border:1px solid var(--line);border-radius:var(--radius-s);padding:8px 9px 8px 12px;background:#fff}
.m3d-ii::before{content:'';position:absolute;left:0;top:7px;bottom:7px;width:3px;border-radius:0 2px 2px 0;background:transparent}
.m3d-ii.m3d-ii-pending{background:#fffdf5;border-color:#fde68a}
.m3d-ii.m3d-ii-pending::before{background:#f59e0b}
.m3d-ii.m3d-ii-flagged::before{background:var(--crit)}
.m3d-ii.m3d-ii-arm{border-color:var(--navy-900);box-shadow:0 0 0 2px rgba(11,31,58,.12)}
.m3d-ii-l{font-size:.8rem;color:var(--ink);line-height:1.35}
.m3d-ii-l em{display:block;font-style:normal;font-size:.68rem;font-weight:700;color:#b45309;margin-top:2px}
.m3d-ii-l em.m3d-ii-tap{color:var(--navy-900)}
.m3d-ii-ans,.m3d-ii-grade{display:flex;gap:4px;margin-top:7px}
.m3d-ii-b,.m3d-ii-g{font:inherit;font-size:.74rem;font-weight:700;color:var(--ink-2);background:#fff;border:1px solid var(--line-d);border-radius:7px;padding:4px 0;cursor:pointer;flex:1;min-height:48px}   /* L-C3b: 48 px at every size */
.m3d-ii-b:hover,.m3d-ii-g:hover{border-color:var(--ink-4)}
.m3d-ii-b.m3d-on.m3d-ii-ok{background:var(--good-bg);border-color:var(--good);color:#166534}
.m3d-ii-b.m3d-on.m3d-ii-flag{background:var(--crit-bg);border-color:var(--crit);color:#991b1b}
.m3d-ii-b.m3d-on.m3d-ii-na{background:#f1f5f9;border-color:var(--ink-4);color:var(--ink-2)}
.m3d-ii-g{flex:0 0 34px;border-bottom:3px solid var(--g)}
.m3d-ii-g.m3d-on{background:var(--g);border-color:var(--g);color:#fff}
.m3d-ii-grade .m3d-ii-b{flex:1}
.m3d-ii-defs{display:flex;flex-wrap:wrap;gap:4px;margin-top:6px}
.m3d-is-def{font:inherit;font-size:.72rem;font-weight:700;color:#991b1b;background:var(--crit-bg);border:1px solid #fecaca;border-radius:6px;padding:2px 7px;cursor:pointer}
.m3d-ip-foot{display:flex;justify-content:space-between;gap:8px;margin-top:12px}
/* clock overlay (inside view): 12 = crown, 6 = riding line, looking downstream */
.m3d-clock{position:absolute;z-index:3;pointer-events:none;transform:translate(-50%,-50%);border:1.5px dashed rgba(255,255,255,.5);border-radius:50%}
.m3d-clock span{position:absolute;font-size:.74rem;font-weight:800;color:#fff;background:rgba(11,31,58,.72);border-radius:9px;padding:1px 7px;transform:translate(-50%,-50%)}
.m3d-clock-12{left:50%;top:0}.m3d-clock-3{left:100%;top:50%}.m3d-clock-6{left:50%;top:100%}.m3d-clock-9{left:0;top:50%}
.m3d-clock i{position:absolute;left:50%;top:50%;width:8px;height:8px;margin:-4px 0 0 -4px;border-radius:50%;background:rgba(255,255,255,.6)}
.m3d-armed .m3d-canvas{cursor:crosshair}
/* summary */
.m3d-is-tiles{display:grid;grid-template-columns:repeat(4,1fr);gap:8px;margin:12px 0}
.m3d-is-tile{border:1px solid var(--line);border-radius:var(--radius-s);padding:8px 10px}
.m3d-is-tile b{display:block;font-size:1.25rem;line-height:1.1;color:var(--ink)}
.m3d-is-tile span{font-size:.7rem;font-weight:700;color:var(--ink-3)}
.m3d-is-ok{border-top:3px solid var(--good)}.m3d-is-flag{border-top:3px solid var(--crit)}.m3d-is-na{border-top:3px solid var(--ink-4)}.m3d-is-open{border-top:3px solid #f59e0b}
.m3d-is-gaps{display:flex;flex-direction:column;gap:4px;max-height:180px;overflow:auto;margin-bottom:10px}
.m3d-is-gap{display:flex;align-items:center;gap:8px;font:inherit;font-size:.76rem;text-align:left;background:#fffdf5;border:1px solid #fde68a;border-radius:7px;padding:5px 8px;cursor:pointer;color:var(--ink)}
.m3d-is-gap span{flex:1;color:var(--ink-3);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.m3d-is-gap em{font-style:normal;font-weight:700;color:#b45309;white-space:nowrap}
/* B6c-1c: the summary gap list shows 8, the rest behind a toggle */
.m3d-is-more{display:flex;flex-direction:column;gap:4px}.m3d-is-more[hidden]{display:none}
.m3d-is-tog{align-self:flex-start;font:inherit;font-size:.76rem;font-weight:700;color:var(--blue);background:none;border:0;padding:4px 2px;cursor:pointer;text-decoration:underline;text-underline-offset:2px}
.m3d-is-sign{display:flex;flex-direction:column;gap:5px;font-size:.72rem;font-weight:700;color:var(--ink-3)}
.m3d-is-sign input{font:inherit;font-size:.84rem;font-weight:600;color:var(--ink);border:1px solid var(--line-d);border-radius:var(--radius-s);padding:7px 10px}
.m3d-is-err{margin-top:10px;padding:7px 10px;border-radius:var(--radius-s);background:var(--crit-bg);color:#991b1b;font-size:.78rem;font-weight:600}
/* B6c-3 F3: the narrow inspect layout switches on the STAGE width (< 700 px, class set by the engine), so a tablet in portrait gets the bottom sheet */
.m3d-narrow .m3d-insp-bar{left:8px;right:8px;top:8px;bottom:auto;flex-wrap:wrap;gap:8px;padding:7px 9px}
.m3d-narrow .m3d-ib-main{flex:1 1 100%}
.m3d-narrow .m3d-ib-top{gap:7px;font-size:.72rem}
.m3d-narrow .m3d-ib-type,.m3d-narrow .m3d-ib-done-n{display:none}
.m3d-narrow .m3d-ib-ctl{flex:1 1 100%;justify-content:space-between}
.m3d-narrow .m3d-insp-panel{top:auto;left:0;right:0;bottom:0;width:auto;max-height:44%;border-radius:16px 16px 0 0;border-bottom:0;padding-top:18px}
.m3d-narrow .m3d-insp-panel::before{content:'';position:absolute;top:7px;left:50%;width:38px;height:4px;margin-left:-19px;border-radius:2px;background:var(--line-d)}
.m3d-narrow .m3d-is-tiles{grid-template-columns:repeat(2,1fr)}

/* ============ L-C3b: phone inspect mode is immersive (< 768 px wide; the engine sets .m3d-immersive on .m3d and
   html.m3d-immersive-on): the model on top, a 48 px step bar, the checklist as a sheet with snaps 30 / 50 / 88% ============ */
html.m3d-immersive-on,html.m3d-immersive-on body{overflow:hidden;overscroll-behavior:none}
html.m3d-immersive-on .topbar,html.m3d-immersive-on .tabbar,html.m3d-immersive-on .appfoot{display:none}
.m3d.m3d-immersive{position:fixed;inset:0;z-index:50;height:auto;min-height:0;gap:0;background:#dfe9f2}
.m3d.m3d-immersive .m3d-head{display:none}
.m3d.m3d-immersive .m3d-stage{border:0;border-radius:0;box-shadow:none}
/* the step bar: one 48 px row under the top inset, a 3 px progress strip below it */
.m3d.m3d-immersive .m3d-insp-bar{left:0;right:0;top:0;bottom:auto;display:block;z-index:6;padding:var(--f3d-safe-top,env(safe-area-inset-top)) calc(4px + env(safe-area-inset-right)) 0 calc(4px + env(safe-area-inset-left));
  border:0;border-radius:0;background:rgba(255,255,255,.97);box-shadow:0 2px 12px rgba(15,23,42,.12)}
.m3d-ib-row{display:flex;align-items:center;gap:2px;height:48px}
.m3d-ib-ic{flex:0 0 44px;width:44px;height:44px;display:inline-flex;align-items:center;justify-content:center;padding:0;border:0;border-radius:12px;background:none;color:var(--navy-900);cursor:pointer}
.m3d-ib-ic:disabled{color:var(--ink-4);opacity:.45;cursor:default}
.m3d-ib-ic:not(:disabled):active{background:#e2e8f0}
.m3d-ib-ic.m3d-ib-next:not(:disabled){background:var(--navy-900);color:#fff}
.m3d-ib-ic[aria-expanded="true"]{background:var(--navy-900);color:#fff}
.m3d-ic{width:24px;height:24px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;flex-shrink:0}
.m3d-ic.m3d-ic-fill{fill:currentColor;stroke:none}
.m3d-ib-mid{flex:1;min-width:0;padding:0 6px;line-height:1.25}
.m3d-ib-k{font-size:12px;color:var(--ink-3);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.m3d-ib-k b{color:var(--navy-900);font-weight:700}
.m3d-ib-l{font-size:14px;font-weight:700;color:var(--ink);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.m3d-ib-prog{position:relative;height:3px;margin:0 calc(-4px - env(safe-area-inset-right)) 0 calc(-4px - env(safe-area-inset-left));background:var(--line)}
.m3d-ib-prog .m3d-ib-s{top:0;height:3px}
.m3d-ib-prog .m3d-ib-s.m3d-ib-fl{background:var(--crit)}
.m3d-ib-prog .m3d-ib-s.m3d-ib-cur{background:var(--navy-900)}
.m3d-ib-prog .m3d-ib-s::before,.m3d-ib-prog .m3d-ib-s::after{display:none}
/* the bar's menu: Outside / Inside, Finish, Exit */
.m3d-ib-menu{position:absolute;top:calc(100% + 6px);right:calc(8px + env(safe-area-inset-right));width:min(290px,calc(100vw - 16px));display:flex;flex-direction:column;gap:8px;padding:12px;
  background:var(--card);border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow-lg)}
.m3d-ib-menu-h{font-size:12px;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:var(--ink-3);padding:0 2px}
.m3d-ib-seg.m3d-ib-menu-seg{display:flex}
.m3d-ib-menu-seg .btn{flex:1;min-height:44px;font-size:14px;font-weight:700}
.m3d-ib-mi{display:flex;flex-direction:column;align-items:flex-start;justify-content:center;gap:2px;width:100%;min-height:54px;padding:6px 12px;text-align:left;font:inherit;font-size:15px;font-weight:700;
  color:var(--ink);background:#f8fafc;border:1px solid var(--line);border-radius:10px;cursor:pointer}
.m3d-ib-mi em{font-style:normal;font-size:12px;font-weight:600;color:var(--ink-3)}
.m3d-ib-mi.m3d-ib-mi-exit{color:#991b1b}
/* the checklist sheet (height set by the engine from the snap); the handle stays on top while the list scrolls */
.m3d.m3d-immersive .m3d-insp-panel{top:auto;left:0;right:0;bottom:0;width:auto;max-height:none;height:30vh;border:0;border-radius:18px 18px 0 0;box-shadow:0 -6px 24px rgba(15,23,42,.18);
  padding:0 calc(14px + env(safe-area-inset-right)) calc(12px + env(safe-area-inset-bottom)) calc(14px + env(safe-area-inset-left));overscroll-behavior:contain;scroll-padding-top:52px}
.m3d.m3d-immersive .m3d-insp-panel::before{display:none}
.m3d.m3d-immersive .m3d-insp-panel.m3d-ip-anim{transition:height .3s cubic-bezier(.2,.9,.3,1.04)}
.m3d.m3d-immersive .m3d-insp-panel .m3d-panel-head{display:none}
.m3d.m3d-immersive .m3d-ip-faces{margin-top:0}
.m3d-ip-grab{position:sticky;top:0;z-index:2;display:flex;align-items:center;justify-content:center;width:calc(100% + 28px);height:44px;margin:0 -14px 4px;padding:0;border:0;
  background:linear-gradient(var(--card) 78%,rgba(255,255,255,0));cursor:grab;touch-action:none}
.m3d-ip-grab i{width:40px;height:5px;border-radius:3px;background:var(--line-d)}
.m3d-ip-grab:focus-visible{outline:none}
.m3d-ip-grab:focus-visible i{background:var(--blue);box-shadow:0 0 0 3px var(--info-bg)}
/* the summary rises as a sheet over the checklist */
.m3d.m3d-immersive .m3d-insp-sum{top:auto;bottom:0;left:0;right:0;width:auto;transform:none;max-height:calc(var(--vvh,100vh) - 48px - var(--f3d-safe-top,env(safe-area-inset-top)));z-index:9;
  border:0;border-radius:18px 18px 0 0;box-shadow:0 -6px 24px rgba(15,23,42,.22);padding:16px calc(16px + env(safe-area-inset-right)) calc(14px + env(safe-area-inset-bottom)) calc(16px + env(safe-area-inset-left))}

/* ============ L-C3b: 3D in modals on touch: swipes scroll the page until "Explore" (the engine adds the chip on coarse pointers) ============ */
.m3d-explore{position:absolute;top:10px;right:10px;z-index:6;display:inline-flex;align-items:center;gap:6px;min-height:44px;padding:0 14px 0 10px;border-radius:12px;font-size:14px;font-weight:700;
  background:rgba(255,255,255,.95);color:var(--navy-900);border:1px solid var(--line);box-shadow:0 2px 10px rgba(15,23,42,.16)}
.m3d-explore .m3d-ic{width:20px;height:20px}
.m3d-explore.m3d-on{background:var(--navy-900);border-color:var(--navy-900);color:#fff}
.m3d-stage.m3d-exploring{box-shadow:inset 0 0 0 2px var(--blue)}

/* ============ L-C3b: the engine's own controls on coarse pointers: tap targets >= 44 px, text >= 12 px ============ */
@media (pointer: coarse){
  .m3d .btn,.m3d .btn-sm,.m3d select,.m3d input[type=text],.m3d input[type=search],.m3d-walk-range{min-height:44px}
  .m3d .btn,.m3d .btn-sm{min-width:44px}
  .m3d .btn-sm{padding-top:0;padding-bottom:0}
  .m3d select,.m3d input[type=text],.m3d input[type=search]{font-size:16px}
  .m3d-x{min-width:44px}
  .m3d-prow,.m3d-def,.m3d-ip-face,.m3d-is-gap,.m3d-is-tog,.m3d-pgroup summary{min-height:44px}
  .m3d-is-def{min-height:44px;min-width:44px;padding:0 12px}
  .m3d-ii-g{flex:1 1 0;min-width:44px}
  .m3d-ib-seg .btn{min-height:44px}
  .m3d-insp-bar{flex-wrap:wrap;row-gap:8px}   /* tablets: the step line gets its own row above the 44 px controls */
  .m3d-insp-bar .m3d-ib-main{flex:1 1 100%}
  .m3d-insp-bar .m3d-ib-ctl{margin-left:auto}
  .m3d-venue-problem,.m3d-tip,.m3d-legend,.m3d-hint,.m3d-panel-kicker,.m3d-panel-note,.m3d-src-lede,.m3d-src-val,.m3d-src-from,.m3d-pinbar,
  .m3d-pgroup summary,.m3d-pgroup-open,.m3d-prow,.m3d-cnt,.m3d-defs-h,.m3d-defs-none,.m3d-def,.m3d-def em,.m3d-walk-read,.m3d-notreg,
  .m3d-ip-lbl,.m3d-ip-note,.m3d-ip-draft span,.m3d-ib-top,.m3d-narrow .m3d-ib-top,.m3d-ib-one,.m3d-ip-face,.m3d-ip-arm,.m3d-ip-msg,.m3d-ii-l em,.m3d-ii-b,.m3d-ii-g,
  .m3d-is-def,.m3d-clock span,.m3d-is-tile span,.m3d-is-gap,.m3d-is-tog,.m3d-is-sign,.m3d-is-err{font-size:12px}
  .m3d-seg .btn em,.m3d-ip-seg .btn em,.m3d-gtools .btn em{font-size:1em}
  .m3d-cnt{min-width:20px;height:20px;border-radius:10px}
}

/* ============ L-C3b-FIX: a flag waiting for its spot holds the step bar row (F1); the cancel notice; --f3d-safe-top lets the
   harness stand in for a notched iPhone's top inset (env() is the fallback, so devices are unchanged) (F3) ============ */
.m3d.m3d-immersive .m3d-insp-bar.m3d-ib-armed{background:var(--navy-900);box-shadow:0 2px 14px rgba(15,23,42,.3)}
.m3d-ib-armrow{gap:4px;padding:0 2px 0 8px}
.m3d-ib-armrow .m3d-ib-mid{padding:0 2px}
.m3d-ib-armrow .m3d-ib-k{color:#cbd5e1}
.m3d-ib-armrow .m3d-ib-k b{color:#fff}
.m3d-ib-armrow .m3d-ib-l{color:#7dd3fc}
@media (max-width:370px){.m3d-ib-armrow .m3d-ib-l{font-size:13px}.m3d-ib-tx{padding:0 7px}}
.m3d-ib-tx{flex:0 0 auto;height:44px;padding:0 9px;border-radius:12px;font:inherit;font-size:13px;font-weight:700;white-space:nowrap;cursor:pointer;color:var(--navy-900);background:#fff;border:1px solid #fff}
.m3d-ib-tx.m3d-ib-tx-ghost{color:#fff;background:transparent;border-color:rgba(255,255,255,.45)}
.m3d-ib-tx:active{filter:brightness(.92)}
.m3d-insp-arm{position:absolute;left:50%;top:calc(var(--f3d-safe-top,env(safe-area-inset-top)) + 62px);z-index:12;transform:translateX(-50%);max-width:calc(100% - 32px);padding:10px 16px;
  border-radius:12px;font-size:14px;font-weight:700;color:#fff;background:rgba(15,23,42,.92);box-shadow:0 6px 20px rgba(15,23,42,.28);pointer-events:none;white-space:nowrap}

/* ============ L-C3c: the Manual items step (the schedule's tasks as the last step of a 3D inspection) ============ */
.m3d-mi-head{font-size:.76rem;color:var(--ink-3);line-height:1.4;margin:0 0 8px}
.m3d-mi-meta{display:flex;flex-wrap:wrap;align-items:center;gap:4px 8px;margin-top:5px}
.m3d-mi-src{display:inline-flex;align-items:center;max-width:100%;font:inherit;font-size:.72rem;font-weight:600;color:var(--blue-d,#1d4ed8);background:none;border:0;padding:2px 0;
  text-decoration:none;cursor:pointer;text-align:left;overflow:hidden;text-overflow:ellipsis}
.m3d-mi-src:hover{text-decoration:underline}
.m3d-mi-src.m3d-mi-src-plain{color:var(--ink-2);cursor:default;text-decoration:none}
.m3d-mi-chk{display:inline-flex;align-items:center;font-size:.68rem;font-weight:700;color:#854d0e;background:#fef3c7;border:1px solid #fde68a;border-radius:999px;padding:2px 8px;white-space:nowrap}
.m3d-mi-note{display:block;margin-top:7px}
.m3d-mi-note span{display:block;font-size:.7rem;font-weight:700;color:var(--ink-2);margin-bottom:3px}
.m3d-mi-note textarea{display:block;width:100%;box-sizing:border-box;font:inherit;font-size:.8rem;line-height:1.35;color:var(--ink);background:#fff;border:1px solid var(--line-d);
  border-radius:7px;padding:7px 9px;resize:vertical;min-height:52px}
.m3d-mi-note textarea:focus{outline:2px solid var(--navy-900);outline-offset:0;border-color:var(--navy-900)}
.m3d-mi-rech{font-size:.7rem;font-weight:700;letter-spacing:.02em;color:var(--ink-3);margin:12px 0 2px}
.m3d-mi.m3d-mi-rec{background:#f8fafc}
.m3d-mi-done{margin-top:6px;font-size:.74rem;color:var(--ink-2);line-height:1.35}
.m3d-mi-done b{color:#166534}
.m3d-mi-done.m3d-mi-done-issue b{color:#991b1b}
.m3d-mi-done.m3d-mi-done-skipped b{color:var(--ink-2)}
@media (pointer: coarse){
  .m3d-mi-src{min-height:44px;font-size:12px}
  .m3d-mi-head,.m3d-mi-chk,.m3d-mi-note span,.m3d-mi-rech,.m3d-mi-done{font-size:12px}
  .m3d-mi-note textarea{font-size:16px}
}