/* SyncRoom — UI styles. Self-contained; system fonts only. */
:root{
  --bg:#0f1620; --topbar:#1b2735; --panel:#f5f6f8; --panel-2:#ffffff; --line:#dfe3e8; --field:#ffffff;
  --ink:#222a33; --muted:#69737d; --accent:#2f7bd6; --accent-d:#2566b3; --danger:#d6452f;
  --tool:#243341; --tool-hover:#31455a; --tool-active:#2f7bd6;
}
*{box-sizing:border-box;margin:0;padding:0}
html,body{height:100%}
body{font:13px/1.4 system-ui,-apple-system,Segoe UI,Roboto,Helvetica,Arial,sans-serif;color:var(--ink);overflow:hidden;background:var(--bg);-webkit-font-smoothing:antialiased}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit}
input,select,textarea{font:inherit;background:var(--field);color:var(--ink)}

#app{display:flex;flex-direction:column;height:100vh}

/* ---------- Top bar ---------- */
#topbar{display:flex;align-items:center;justify-content:space-between;gap:8px;background:var(--topbar);color:#e7edf3;padding:0 10px;height:46px;flex:0 0 auto;box-shadow:0 1px 0 rgba(0,0,0,.25)}
.tb-group{display:flex;align-items:center;gap:6px}
.tb-group.center{flex:1;justify-content:center}
.tb-group.right{justify-content:flex-end}
.brand{font-weight:600;letter-spacing:.2px;margin:0 6px;white-space:nowrap}
.brand-js{color:var(--accent);font-weight:800;margin-left:2px}
.project-name{background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.12);color:#fff;border-radius:6px;padding:5px 9px;width:190px;outline:none}
.project-name:focus{border-color:var(--accent);background:rgba(255,255,255,.14)}
.tb-btn{color:#cfd8e2;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.08);border-radius:7px;height:30px;min-width:32px;padding:0 9px;font-size:15px;display:inline-flex;align-items:center;justify-content:center}
.tb-btn:hover{background:rgba(255,255,255,.14);color:#fff}
.tb-btn.primary{background:var(--accent);border-color:var(--accent);color:#fff;font-size:13px;font-weight:600}
.tb-btn.primary:hover{background:var(--accent-d)}
.tb-btn.on{background:var(--accent);color:#fff;border-color:var(--accent)}
.tb-field select{background:rgba(255,255,255,.08);color:#fff;border:1px solid rgba(255,255,255,.12);border-radius:6px;height:30px;padding:0 6px;outline:none}
.tb-field select option{color:#000}
.seg{display:inline-flex;background:rgba(0,0,0,.25);border-radius:8px;padding:2px}
.seg.small{position:static}
.seg-btn{color:#b9c4cf;padding:6px 13px;border-radius:6px;font-weight:600;font-size:12.5px}
.seg-btn.active{background:var(--accent);color:#fff}
.seg.small .seg-btn{padding:5px 10px}

/* ---------- Body layout ---------- */
#body{flex:1;display:flex;min-height:0}
#toolbar{flex:0 0 auto;width:64px;background:var(--tool);display:flex;flex-direction:column;gap:3px;padding:7px 6px;overflow-y:auto}
.tool{color:#aebccb;border-radius:8px;padding:8px 2px 6px;display:flex;flex-direction:column;align-items:center;gap:3px;font-size:18px;line-height:1}
.tool span{font-size:9.5px;letter-spacing:.2px}
.tool:hover{background:var(--tool-hover);color:#fff}
.tool.active{background:var(--tool-active);color:#fff}

/* ---------- Catalog panel ---------- */
#leftpanel{flex:0 0 auto;width:268px;background:var(--panel);border-right:1px solid var(--line);display:flex;flex-direction:column;min-height:0}
#leftpanel.hidden{display:none}
.panel-head{display:flex;align-items:center;justify-content:space-between;padding:10px 12px;border-bottom:1px solid var(--line)}
.panel-head .x{font-size:20px;color:var(--muted);width:26px;height:26px;border-radius:6px}
.panel-head .x:hover{background:#e6e9ed;color:#000}
.search{margin:10px 12px 6px;padding:7px 10px;border:1px solid var(--line);border-radius:7px;outline:none}
.search:focus{border-color:var(--accent)}
.chips{display:flex;flex-wrap:wrap;gap:5px;padding:4px 12px 8px}
.chip{font-size:11.5px;padding:4px 9px;border-radius:20px;background:#e7eaee;color:#46505a}
.chip:hover{background:#dadfe5}
.chip.active{background:var(--accent);color:#fff}
.grid{flex:1;overflow-y:auto;display:grid;grid-template-columns:1fr 1fr;gap:8px;padding:8px 12px 16px}
.cat-item{background:#fff;border:1px solid var(--line);border-radius:9px;padding:8px 6px;text-align:center;display:flex;flex-direction:column;align-items:center;gap:5px}
.cat-item:hover{border-color:var(--accent);box-shadow:0 2px 8px rgba(47,123,214,.15)}
.cat-item canvas{width:84px;height:60px}
.cat-item .nm{font-size:11px;color:#3a434d;line-height:1.2}
.cat-item .dim{font-size:9.5px;color:var(--muted)}

/* ---------- Stage ---------- */
#stage{position:relative;flex:1;min-width:0;background:#dde1e6;overflow:hidden}
#canvas2d{position:absolute;inset:0;width:100%;height:100%;display:block;touch-action:none}
#view3d{position:absolute;inset:0}
#view3d.hidden,#canvas2d.hidden{display:none}
.view3d-error{color:#fff;padding:30px;font-size:15px}

#view3d-controls{position:absolute;top:12px;left:50%;transform:translateX(-50%);display:flex;gap:8px;align-items:center;z-index:5}
#view3d-controls.hidden{display:none}
.ovl-btn{background:rgba(20,30,42,.85);color:#dfe6ee;border-radius:7px;padding:7px 11px;font-weight:600;font-size:12px}
.ovl-btn:hover{background:rgba(20,30,42,1)}
.ovl-btn.on{background:var(--accent);color:#fff}
#view3d-controls .seg{background:rgba(20,30,42,.85)}
.hint{position:absolute;top:46px;left:50%;transform:translateX(-50%);white-space:nowrap;background:rgba(20,30,42,.85);color:#cdd6df;padding:6px 12px;border-radius:7px;font-size:11.5px}
.hint.hidden{display:none}
.hint b{color:#fff}

#statusbar{position:absolute;bottom:0;left:0;right:0;height:26px;background:rgba(27,39,53,.92);color:#aeb9c4;display:flex;align-items:center;gap:16px;padding:0 12px;font-size:11.5px;z-index:4}
#statusbar .hint-text{flex:1;color:#86919c}
.save-state{color:#7fbf7f}

/* ---------- Right panel ---------- */
#rightpanel{flex:0 0 auto;width:264px;background:var(--panel);border-left:1px solid var(--line);display:flex;flex-direction:column;min-height:0;overflow-y:auto}
.rp-section{border-bottom:1px solid var(--line)}
.rp-head{display:flex;align-items:center;justify-content:space-between;padding:9px 12px;font-weight:700;font-size:11.5px;letter-spacing:.4px;text-transform:uppercase;color:#56616b;background:#eceef1}
.rp-body{padding:10px 12px}
.empty{color:var(--muted);font-size:12px;padding:6px 0}
.mini{width:22px;height:22px;border-radius:6px;background:#dde2e7;color:#3a434d;font-size:14px;line-height:1}
.mini:hover{background:var(--accent);color:#fff}

/* property rows */
.prop{display:flex;align-items:center;justify-content:space-between;gap:8px;margin-bottom:8px}
.prop label{color:var(--muted);font-size:11.5px;flex:0 0 auto}
.prop input[type=text],.prop input[type=number],.prop select{flex:1;min-width:0;border:1px solid var(--line);border-radius:6px;padding:5px 7px;outline:none;width:100%}
.prop input:focus,.prop select:focus{border-color:var(--accent)}
.prop.two input{width:50%}
.prop .swatch{width:30px;height:24px;border-radius:6px;border:1px solid var(--line);padding:0}
.prop-row2{display:flex;gap:6px}
.prop-row2 .f{flex:1 1 0;min-width:0;display:flex;flex-direction:column;gap:3px}
.prop-row2 .f small{color:var(--muted);font-size:10px}
/* size sub-fields (W/D/H, wall Start/End x,y) must shrink to share the panel width, not overflow */
.prop-row2 .f input{width:100%;min-width:0;border:1px solid var(--line);border-radius:6px;padding:5px 6px;outline:none}
.prop-row2 .f input:focus{border-color:var(--accent)}
.insp-title{font-weight:700;font-size:13px;margin-bottom:8px;display:flex;align-items:center;gap:6px}
.insp-title .tag{font-size:10px;background:#e2e7ec;color:#5a646e;padding:2px 7px;border-radius:10px;text-transform:capitalize}
.btn-row{display:flex;gap:6px;margin-top:8px;flex-wrap:wrap}
.btn{border:1px solid var(--line);background:#fff;border-radius:7px;padding:6px 10px;font-size:12px;color:#3a434d}
.btn:hover{border-color:var(--accent);color:var(--accent)}
.btn.danger:hover{border-color:var(--danger);color:var(--danger)}
.btn.solid{background:var(--accent);border-color:var(--accent);color:#fff}
.btn.solid:hover{background:var(--accent-d);color:#fff}

/* floors */
.floor-row{display:flex;align-items:center;gap:8px;padding:7px 8px;border:1px solid var(--line);border-radius:7px;margin-bottom:6px;background:#fff}
.floor-row.active{border-color:var(--accent);box-shadow:0 0 0 1px var(--accent) inset}
.floor-row .nm{flex:1;border:0;background:none;outline:none;font-size:12.5px}
.floor-row .vis{color:var(--muted)}
.floor-row .del{color:var(--muted);font-size:15px}
.floor-row .del:hover{color:var(--danger)}

/* ---------- Modal ---------- */
#modal-host{position:fixed;inset:0;z-index:50;display:flex;align-items:center;justify-content:center}
#modal-host.hidden{display:none}
#modal-backdrop{position:absolute;inset:0;background:rgba(10,16,24,.45)}
#modal-card{position:relative;background:#fff;border-radius:12px;min-width:420px;max-width:92vw;max-height:86vh;overflow:auto;box-shadow:0 18px 60px rgba(0,0,0,.35)}
.modal-h{display:flex;align-items:center;justify-content:space-between;padding:14px 18px;border-bottom:1px solid var(--line)}
.modal-h h2{font-size:15px}
.modal-h .x{font-size:22px;color:var(--muted);width:30px;height:30px;border-radius:7px}
.modal-h .x:hover{background:#eceef1;color:#000}
.modal-b{padding:16px 18px}
.proj-list{display:flex;flex-direction:column;gap:8px;margin-top:4px;max-height:46vh;overflow:auto}
.proj-row{display:flex;align-items:center;gap:10px;padding:10px 12px;border:1px solid var(--line);border-radius:9px}
.proj-row:hover{border-color:var(--accent);background:#f7faff}
.proj-row .meta{flex:1}
.proj-row .meta .pn{font-weight:600}
.proj-row .meta .ps{color:var(--muted);font-size:11px}
.field{display:flex;flex-direction:column;gap:4px;margin-bottom:12px}
.field label{font-size:11.5px;color:var(--muted)}
.field input,.field select{border:1px solid var(--line);border-radius:7px;padding:8px 10px;outline:none}
.field input:focus{border-color:var(--accent)}
.row{display:flex;gap:10px}
.row .field{flex:1}
.hidden{display:none !important}
.note{color:var(--muted);font-size:11.5px;margin-top:6px}

/* ============ Responsive: tablet & phone (desktop layout unchanged) ============ */
.compact-only{display:none}
/* contextual "edit the selected object" bar (shown by JS only on tablet/phone when selected) */
#sel-bar{position:absolute;left:0;right:0;bottom:0;height:50px;z-index:8;display:flex;align-items:center;gap:12px;padding:0 14px;background:var(--panel-2);border-top:1px solid var(--line);box-shadow:0 -6px 26px rgba(0,0,0,.22)}
#sel-bar.hidden{display:none}
#sel-bar .btn{flex:0 0 auto;padding:9px 16px}
#sel-bar span{flex:1;min-width:0;color:var(--muted);font-size:13px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
#ui-scrim{position:fixed;inset:0;background:rgba(0,0,0,.4);z-index:25}
#ui-scrim.hidden{display:none}

/* shared compact (tablet + phone): the two big side panels float over the stage */
html.compact .compact-only{display:inline-flex}
html.compact #leftpanel,html.compact #rightpanel{position:fixed;z-index:30;box-shadow:0 14px 60px rgba(0,0,0,.5);transition:transform .22s ease}
/* roomier touch targets (not the topbar — it must stay compact to fit) */
html.compact .tool{padding:11px 2px 9px}
html.compact .seg-btn{padding:9px 15px}
html.compact .btn{padding:9px 13px}
html.compact .chip{padding:7px 12px}
html.compact .cat-item{padding:11px 6px}
html.compact .floor-row{padding:10px 9px}
html.compact .prop input,html.compact .prop select,html.compact .field input,html.compact .field select,html.compact .prop-row2 .f input{padding:9px 9px}
html.compact .rp-head{padding:12px 14px}

/* ---- Tablet: panels slide in from the sides ---- */
html.tablet #rightpanel{top:46px;right:0;bottom:0;width:min(340px,86vw);transform:translateX(101%)}
html.tablet #rightpanel.open{transform:translateX(0)}
html.tablet #leftpanel{top:46px;left:0;bottom:0;width:min(300px,86vw);transform:translateX(-101%)}
html.tablet #leftpanel.hidden{display:flex!important;transform:translateX(-101%)}
html.tablet #leftpanel:not(.hidden){transform:translateX(0)}

/* ---- Phone: panels are bottom sheets; trim the top bar ---- */
html.phone .phone-hide{display:none!important}
html.phone #topbar{gap:5px;padding:0 7px;overflow-x:auto}
html.phone .tb-btn{min-width:30px;padding:0 6px;font-size:14px}
html.phone .project-name{width:auto;flex:1;min-width:30px}
html.phone .seg-btn{padding:6px 9px;font-size:11.5px}
html.phone #toolbar{width:54px}
html.phone .tool span{font-size:9px}
html.phone .grid{grid-template-columns:repeat(3,1fr)}
html.phone #leftpanel,html.phone #rightpanel{left:0;right:0;bottom:0;top:auto;width:auto;max-height:64vh;border-radius:16px 16px 0 0;border-top:1px solid var(--line);box-shadow:0 -12px 55px rgba(0,0,0,.55)}
html.phone #rightpanel{transform:translateY(110%)}
html.phone #rightpanel.open{transform:translateY(0)}
html.phone #leftpanel{transform:translateY(110%)}
html.phone #leftpanel.hidden{display:flex!important;transform:translateY(110%)}
html.phone #leftpanel:not(.hidden){transform:translateY(0)}
html.phone #statusbar .hint-text{display:none}

/* ---------- Dark mode (follows the OS setting) ---------- */
@media (prefers-color-scheme: dark){
  :root{
    --topbar:#10151c; --panel:#161b22; --panel-2:#1c232c; --line:#2b333d;
    --ink:#e6edf3; --muted:#8b95a1; --bg:#05070a; --tool:#10151c; --tool-hover:#1d2733; --field:#11161d;
  }
  .tb-field select{background:rgba(255,255,255,.08);color:#fff}
  .cat-item,.btn,.floor-row,#modal-card{background:var(--panel-2);color:var(--ink)}
  .btn{color:#cdd5dd}
  .rp-head{background:#11161d;color:#9aa6b2}
  #stage{background:#06090d}
  .chip{background:#232c37;color:#c3ccd5}
  .chip:hover{background:#2d3845}
  .cat-item .nm{color:#c4ccd4}
  .mini{background:#2a323c;color:#cfd6de}
  .insp-title .tag{background:#2a323c;color:#aeb8c2}
  .panel-head .x:hover,.modal-h .x:hover{background:#232c37;color:#fff}
  .proj-row:hover{background:#1b2430}
  .tb-field select option{color:#000}
}

/* ===== Collaboration: Share button + dialog ===== */
#btn-share{display:inline-flex;align-items:center;gap:5px;white-space:nowrap}
#btn-share .live-dot{display:inline-block;min-width:0;height:14px;border-radius:8px;font-size:11px;line-height:14px;text-align:center}
#btn-share.collab{background:var(--accent);color:#fff;border-color:var(--accent)}
#btn-share.collab .live-dot:not(:empty){background:rgba(255,255,255,.9);color:var(--accent);padding:0 5px;font-weight:700}
.share-row{display:flex;gap:8px;margin:10px 0}
.share-url{flex:1;min-width:0;font-family:ui-monospace,Menlo,Consolas,monospace;font-size:13px;padding:8px 10px;border:1px solid var(--line);border-radius:8px;background:var(--field)}

/* ===== Custom-item editor ===== */
.chip.ci-new{background:var(--accent);color:#fff;font-weight:600;border-color:var(--accent)}
.cat-item{position:relative}
.cat-del{position:absolute;top:4px;right:4px;width:20px;height:20px;line-height:18px;border:none;border-radius:10px;background:rgba(0,0,0,.45);color:#fff;cursor:pointer;font-size:12px;padding:0;display:none}
.cat-item:hover .cat-del{display:block}
.ci-editor .ci-grid{display:flex;gap:16px;align-items:flex-start;margin-top:8px}
.ci-editor .ci-grid>div{flex:1;min-width:0}
.ci-h{font-weight:600;margin:6px 0;color:var(--muted)}
.ci-preview{width:100%;max-width:260px;border:1px solid var(--line);border-radius:8px;background:var(--field)}
.ci-parts{display:flex;flex-direction:column;gap:8px;max-height:300px;overflow:auto}
.ci-part{display:flex;flex-wrap:wrap;gap:8px;align-items:flex-end;padding:8px;border:1px solid var(--line);border-radius:8px;position:relative}
.ci-f{display:flex;flex-direction:column;gap:2px}
.ci-lbl{font-size:11px;color:var(--muted)}
.ci-f select,.ci-f input[type=color]{height:30px}
.ci-vec{display:flex;gap:4px}
.ci-vec input{width:52px;padding:4px 6px;border:1px solid var(--line);border-radius:6px;background:var(--field)}
.ci-del{position:absolute;top:6px;right:6px;width:22px;height:22px;border:none;border-radius:11px;background:rgba(0,0,0,.12);cursor:pointer}