:root{
  --bg:#07182B;
  --panel:#0B2540;
  --panel-2:#0E2E50;
  --panel-3:#133A5E;
  --line:#1E3E63;
  --text:#E8F0F8;
  --muted:#9DB1C9;
  --faint:#66809E;
  --accent:#0FB5AE;
  --accent-2:#0C9690;
  --good:#39c58d;
  --warn:#ffb547;
  --bad:#ff6f75;
  --radius:14px;
  --shadow:0 10px 30px rgba(0,0,0,.35);
  font-synthesis:none;
}
*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Inter,Roboto,Helvetica,Arial,sans-serif;
  background:var(--bg);
  color:var(--text);
  -webkit-font-smoothing:antialiased;
  font-size:14px;
}
#app{display:flex;height:100vh;overflow:hidden}

/* ---------- Sidebar ---------- */
#sidebar{
  width:260px;flex:0 0 260px;
  background:linear-gradient(180deg,#0A2240,#07182B);
  border-right:1px solid var(--line);
  display:flex;flex-direction:column;
  padding:22px 18px;
  overflow-y:auto;overflow-x:hidden;
}
#sidebar::-webkit-scrollbar{width:8px}
.brand{display:flex;align-items:center;gap:12px;margin-bottom:26px}
.brand-mark{
  width:40px;height:40px;border-radius:11px;
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 6px 16px rgba(15,181,174,.35);
}
.brand-mark svg{width:100%;height:100%;display:block}
.brand-title{font-weight:700;font-size:15px;letter-spacing:.2px}
.brand-sub{font-size:11.5px;color:var(--faint);margin-top:1px}
.side-section{margin-bottom:22px}
.side-label{
  font-size:10.5px;text-transform:uppercase;letter-spacing:.13em;
  color:var(--faint);font-weight:700;margin-bottom:9px;
}
.dataset-chip{
  background:var(--panel-2);border:1px solid var(--line);
  border-radius:10px;padding:10px 12px;font-size:12.5px;color:var(--text);
  line-height:1.4;
}
.dataset-chip.empty{color:var(--faint)}
.dataset-chip b{color:var(--accent);font-weight:600}
.dataset-chip .meta{color:var(--muted);font-size:11.5px;margin-top:3px}
#analysis-nav{display:flex;flex-direction:column;gap:4px}
.nav-item{
  display:flex;align-items:center;gap:10px;
  padding:9px 11px;border-radius:9px;cursor:pointer;
  color:var(--muted);font-size:13px;font-weight:500;
  border:1px solid transparent;transition:.12s;
}
.nav-item:hover{background:var(--panel-2);color:var(--text)}
.nav-item.active{background:var(--panel-3);color:#fff;border-color:var(--line)}
.nav-item.disabled{opacity:.4;cursor:not-allowed}
.nav-item .ni-ico{font-size:15px;width:18px;text-align:center}
.nav-item .ni-req{
  margin-left:auto;font-size:9.5px;color:var(--warn);
  background:rgba(255,181,71,.12);padding:1px 6px;border-radius:20px;
}
.side-foot{
  margin-top:auto;font-size:11px;color:var(--faint);line-height:1.5;
  display:flex;gap:7px;align-items:flex-start;padding-top:14px;border-top:1px solid var(--line);
}
.side-foot .dot{width:7px;height:7px;border-radius:50%;background:var(--good);margin-top:4px;flex:0 0 7px;box-shadow:0 0 8px var(--good)}

/* ---------- Screens ---------- */
#main{flex:1;overflow:hidden;position:relative}
.screen{display:none;height:100%;overflow:auto}
.screen.active{display:block}

/* ---------- Upload ---------- */
#upload-screen{padding:0}
.upload-hero{max-width:760px;margin:0 auto;padding:64px 32px 48px;text-align:center}
.upload-hero h1{font-size:32px;line-height:1.18;margin:0 0 14px;font-weight:750;letter-spacing:-.5px}
.lede{color:var(--muted);font-size:15.5px;line-height:1.6;margin:0 auto 34px;max-width:600px}
.dropzone{
  border:2px dashed var(--line);border-radius:18px;
  padding:44px 24px;cursor:pointer;background:var(--panel);
  transition:.15s;margin-bottom:38px;
}
.dropzone:hover,.dropzone.drag{border-color:var(--accent);background:var(--panel-2);transform:translateY(-1px)}
.dz-icon{font-size:34px;color:var(--accent);margin-bottom:12px}
.dz-title{font-size:16px;font-weight:600;margin-bottom:6px}
.dz-title .link{color:var(--accent);text-decoration:underline}
.dz-sub{color:var(--faint);font-size:12.5px;letter-spacing:.04em}
.feature-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;text-align:left;margin-bottom:30px}
.feature{background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:16px}
.feature b{display:block;font-size:13.5px;margin-bottom:5px}
.feature span{color:var(--muted);font-size:12px;line-height:1.5}
.ghost-btn{
  background:var(--panel-2);border:1px solid var(--line);color:var(--text);
  padding:9px 16px;border-radius:9px;cursor:pointer;font-size:13px;font-weight:500;transition:.12s;
}
.ghost-btn:hover{background:var(--panel-3);border-color:var(--accent)}
.ghost-btn.center{display:block;margin:0 auto}

/* ---------- Workspace ---------- */
#workspace{display:none;flex-direction:column}
#workspace.active{display:flex}
#dashboard-screen{display:none;flex-direction:column;height:100%}
#dashboard-screen.active{display:flex}
.ws-header{
  padding:22px 30px 16px;border-bottom:1px solid var(--line);flex:0 0 auto;
  display:flex;justify-content:space-between;align-items:flex-start;gap:16px;
}
.ws-header h2{margin:0 0 4px;font-size:21px;font-weight:700;letter-spacing:-.3px}
.ws-desc{margin:0;color:var(--muted);font-size:13px;max-width:640px;line-height:1.5}
.ws-body{flex:1;display:flex;overflow:hidden}

.config-panel{
  width:320px;flex:0 0 320px;border-right:1px solid var(--line);
  padding:20px;overflow-y:auto;background:var(--panel);
}
.config-section-title{
  font-size:10.5px;text-transform:uppercase;letter-spacing:.12em;
  color:var(--faint);font-weight:700;margin:0 0 14px;
}
.config-divider{height:1px;background:var(--line);margin:22px 0}
.field{margin-bottom:16px}
.field label{display:block;font-size:12px;font-weight:600;margin-bottom:6px;color:var(--text)}
.field .hint{font-size:11px;color:var(--faint);margin-top:5px;line-height:1.4}
.field select,.field input[type=text],.field input[type=number]{
  width:100%;background:var(--panel-2);border:1px solid var(--line);color:var(--text);
  padding:8px 10px;border-radius:8px;font-size:13px;outline:none;transition:.12s;
}
.field select:focus,.field input:focus{border-color:var(--accent)}
.field select[multiple]{height:auto;min-height:90px;padding:4px}
.field select[multiple] option{padding:4px 7px;border-radius:5px}
.row-2{display:flex;gap:10px}
.row-2 .field{flex:1}
.check{display:flex;align-items:center;gap:9px;margin-bottom:12px;cursor:pointer;font-size:12.5px}
.check input{width:16px;height:16px;accent-color:var(--accent);cursor:pointer}
.seg{display:flex;background:var(--panel-2);border:1px solid var(--line);border-radius:8px;padding:3px;gap:3px}
.seg button{
  flex:1;background:transparent;border:none;color:var(--muted);
  padding:6px 8px;border-radius:6px;font-size:12px;cursor:pointer;font-weight:500;transition:.1s;
}
.seg button.on{background:var(--accent);color:#fff}
.color-row{display:flex;align-items:center;gap:8px;margin-bottom:7px}
.color-row input[type=color]{width:32px;height:26px;border:1px solid var(--line);border-radius:6px;background:none;padding:1px;cursor:pointer}
.color-row span{font-size:12px;color:var(--muted);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* ---------- Output ---------- */
.output-panel{flex:1;overflow-y:auto;padding:24px 28px;background:var(--bg)}
.plot-warning{
  background:rgba(255,181,71,.1);border:1px solid rgba(255,181,71,.35);
  color:var(--warn);padding:12px 16px;border-radius:10px;font-size:13px;margin-bottom:16px;line-height:1.5;
}
.plot{
  background:#fff;border-radius:12px;box-shadow:var(--shadow);
  min-height:460px;overflow:hidden;
}
.stats-output{margin-top:22px}
.stats-card{
  background:var(--panel);border:1px solid var(--line);border-radius:12px;
  padding:18px 20px;margin-bottom:16px;
}
.stats-card h3{margin:0 0 14px;font-size:14px;font-weight:700;display:flex;align-items:center;gap:8px}
.stats-card h3 .pill{font-size:10.5px;font-weight:600;padding:2px 9px;border-radius:20px;background:var(--panel-3);color:var(--muted)}
.stat-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(140px,1fr));gap:12px}
.stat-box{background:var(--panel-2);border-radius:9px;padding:11px 13px}
.stat-box .k{font-size:10.5px;color:var(--faint);text-transform:uppercase;letter-spacing:.06em;margin-bottom:5px}
.stat-box .v{font-size:19px;font-weight:700;font-variant-numeric:tabular-nums}
.stat-box .v.small{font-size:14px}
.sig-pos{color:var(--good)}
.sig-neg{color:var(--muted)}
table.data-table{width:100%;border-collapse:collapse;font-size:12.5px}
table.data-table th,table.data-table td{
  padding:8px 10px;text-align:left;border-bottom:1px solid var(--line);
  font-variant-numeric:tabular-nums;
}
table.data-table th{color:var(--muted);font-weight:600;font-size:11px;text-transform:uppercase;letter-spacing:.04em}
table.data-table tr:last-child td{border-bottom:none}
table.data-table td.num{text-align:right}
.sig-star{color:var(--warn);font-weight:700}
.legend-note{font-size:11.5px;color:var(--faint);margin-top:10px;line-height:1.5}

/* ---------- Sidebar buttons ---------- */
.side-btns{display:flex;flex-direction:column;gap:6px;margin-top:8px}
.side-btns .ghost-btn{font-size:12px;padding:7px 12px;text-align:left}

/* ---------- Collapsible settings sections ---------- */
details.cfg-sec{
  border:1px solid var(--line);border-radius:10px;margin-bottom:10px;
  background:var(--panel-2);overflow:hidden;
}
details.cfg-sec summary{
  cursor:pointer;padding:10px 12px;font-size:11.5px;font-weight:700;color:var(--text);
  list-style:none;display:flex;align-items:center;gap:8px;user-select:none;
  text-transform:uppercase;letter-spacing:.07em;
}
details.cfg-sec summary::-webkit-details-marker{display:none}
details.cfg-sec summary::before{content:'▸';color:var(--faint);transition:transform .15s;font-size:11px}
details.cfg-sec[open] summary::before{transform:rotate(90deg)}
details.cfg-sec .sec-body{padding:2px 12px 12px}
details.cfg-sec .field select,details.cfg-sec .field input[type=text],details.cfg-sec .field input[type=number]{background:var(--panel)}
details.cfg-sec .seg{background:var(--panel)}

/* ---------- Data viewer / editor ---------- */
.data-body{flex:1;overflow:hidden;padding:20px 28px}
#data-screen{display:none;flex-direction:column;height:100%}
#data-screen.active{display:flex}
.dg-wrap{
  overflow:auto;border:1px solid var(--line);border-radius:12px;
  max-height:calc(100vh - 170px);background:var(--panel);
}
table.dg{border-collapse:separate;border-spacing:0;font-size:12px;min-width:100%}
.dg th{
  position:sticky;top:0;background:var(--panel-3);color:var(--text);
  padding:10px 12px;text-align:left;font-size:12px;font-weight:700;
  border-bottom:1px solid var(--line);border-right:1px solid var(--line);
  vertical-align:top;z-index:2;min-width:150px;
}
.dg td{
  padding:6px 12px;border-bottom:1px solid var(--line);border-right:1px solid var(--line);
  white-space:nowrap;max-width:260px;overflow:hidden;text-overflow:ellipsis;
  color:var(--muted);font-variant-numeric:tabular-nums;
}
.dg tr:hover td{background:var(--panel-2);color:var(--text)}
.col-controls{display:flex;gap:8px;margin-top:7px;align-items:center}
.col-controls select{
  font-size:11px;padding:3px 7px;background:var(--panel-2);color:var(--text);
  border:1px solid var(--line);border-radius:6px;outline:none;
}
.dg-use{display:flex;align-items:center;gap:4px;font-size:11px;font-weight:500;color:var(--muted);cursor:pointer}
.dg-use input{accent-color:var(--accent);width:13px;height:13px;cursor:pointer}
.col-meta{font-size:10.5px;color:var(--faint);font-weight:500;margin-top:5px}
th.col-excluded,td.col-excluded{opacity:.35}

/* ---------- Plot toolbar + dashboard ---------- */
.plot-toolbar{display:flex;gap:10px;margin-bottom:12px;flex-wrap:wrap}
.dash-count{background:var(--accent);color:#fff;border-radius:20px;padding:0 7px;font-size:11px;margin-left:4px}
.dash-actions{display:flex;gap:10px}
.dash-body{flex:1;display:flex;overflow:hidden;position:relative}
.dash-canvas{flex:1;overflow:auto;position:relative;background:
  linear-gradient(90deg,var(--line) 1px,transparent 1px) 0 0/28px 28px,
  linear-gradient(var(--line) 1px,transparent 1px) 0 0/28px 28px,var(--bg);
  background-blend-mode:normal;min-height:400px}
.dash-drawer{flex:0 0 auto;border-top:1px solid var(--line);background:var(--panel);padding:12px 18px;max-height:210px;overflow:auto}
.drawer-label{font-size:11px;font-weight:700;letter-spacing:.04em;text-transform:uppercase;color:var(--faint);margin-bottom:10px}
.drawer-label .hint{text-transform:none;letter-spacing:0;font-weight:400}
.drawer-items{display:flex;gap:12px;flex-wrap:wrap}
.drawer-empty{color:var(--faint);font-size:13px;padding:14px 0}
.drawer-item{position:relative;width:180px;height:120px;border:1px solid var(--line);border-radius:9px;overflow:hidden;background:#0A2036;cursor:grab;flex:0 0 auto}
.drawer-item img{width:100%;height:100%;object-fit:contain}
.drawer-item:active{cursor:grabbing}
.drawer-del{position:absolute;top:4px;right:4px;background:rgba(0,0,0,.55);border:none;color:#fff;width:20px;height:20px;border-radius:5px;cursor:pointer;font-size:11px;opacity:0;transition:.12s}
.drawer-item:hover .drawer-del{opacity:1}
.thumb-fallback{display:flex;align-items:center;justify-content:center;height:100%;color:var(--faint);font-size:12px}
.dfig{position:absolute;border:1px solid var(--line);border-radius:10px;overflow:hidden;background:#0A2036;box-shadow:var(--shadow);display:flex;flex-direction:column}
.dfig.editing{border-color:var(--accent);box-shadow:0 0 0 2px rgba(15,181,174,.4),var(--shadow)}
.dfig-bar{display:flex;align-items:center;justify-content:space-between;padding:5px 8px;background:var(--panel-2);border-bottom:1px solid var(--line);cursor:move;font-size:11.5px;flex:0 0 auto}
.dfig-title{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;color:var(--text)}
.dfig-tools{display:flex;gap:4px}
.dfig-tools button{background:var(--panel-3);border:1px solid var(--line);color:var(--muted);width:22px;height:22px;border-radius:5px;cursor:pointer;font-size:11px;padding:0}
.dfig-tools button:hover{border-color:var(--accent);color:var(--text)}
.dfig-body{flex:1;overflow:hidden;display:flex;cursor:pointer}
.dfig-body img{width:100%;height:100%;object-fit:contain}
.dfig-resize{position:absolute;right:0;bottom:0;width:16px;height:16px;cursor:nwse-resize;background:linear-gradient(135deg,transparent 50%,var(--accent) 50%)}
.dash-edit{flex:0 0 0;width:0;overflow:hidden;border-left:1px solid var(--line);background:var(--panel);transition:width .15s}
.dash-edit.open{flex:0 0 320px;width:320px;overflow-y:auto;padding:16px}
.de-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:12px}
.de-head b{font-size:14px}

/* ---------- Searchable pickers ---------- */
.pick-search{width:100%;background:var(--panel-2);border:1px solid var(--line);color:var(--text);
  padding:6px 9px;border-radius:7px;font-size:12px;outline:none;margin-bottom:6px}
.pick-search:focus{border-color:var(--accent)}
.pick-select{width:100%;background:var(--panel-2);border:1px solid var(--line);color:var(--text);
  border-radius:8px;font-size:13px;outline:none;padding:3px}
.pick-select:focus{border-color:var(--accent)}
.pick-select option{padding:5px 8px;border-radius:5px}
.pick-select option:checked{background:var(--accent);color:#fff}
.pick-select option[disabled]{color:var(--faint);font-size:10px;text-align:center}
.cfg-showhidden{float:right;font-size:10.5px;font-weight:500;color:var(--muted);
  text-transform:none;letter-spacing:0;display:inline-flex;align-items:center;gap:5px;cursor:pointer}
.cfg-showhidden input{width:13px;height:13px;accent-color:var(--accent)}

/* ---------- Dashboard live plot cards ---------- */
.dfig-plotarea{width:100%;height:100%;overflow:hidden}
.dfig-body{overflow:hidden}

/* ---------- Dashboard stats cards ---------- */
.dfig-statscard .dfig-body{overflow:auto;padding:0}
.dfig-stats{padding:14px 16px;min-height:100%;box-sizing:border-box}
.dfig-stats .stats-card{background:transparent;border:none;padding:0;margin:0 0 10px}
.dfig-stats table{width:100%}
.drawer-stats{display:flex;align-items:center;justify-content:center}
.drawer-statsthumb{font-size:11px;color:var(--muted);padding:8px;text-align:center;line-height:1.4}

/* ---------- Drag-and-drop multiselect ---------- */
.ms{background:var(--panel-2);border:1px solid var(--line);border-radius:9px;padding:7px}
.ms-selected{display:flex;flex-wrap:wrap;gap:6px;min-height:32px;padding:3px;border-radius:6px;
  border:1px dashed transparent;transition:.12s}
.ms-selected:empty{min-height:0}
.ms-chip{display:inline-flex;align-items:center;gap:6px;background:var(--accent);color:#fff;
  border-radius:20px;padding:4px 5px 4px 11px;font-size:12px;font-weight:500;cursor:grab;user-select:none}
.ms-chip:active{cursor:grabbing}
.ms-chip-lbl{pointer-events:none}
.ms-x{background:rgba(255,255,255,.25);border:none;color:#fff;width:16px;height:16px;border-radius:50%;
  cursor:pointer;font-size:9px;display:flex;align-items:center;justify-content:center;padding:0}
.ms-x:hover{background:rgba(255,255,255,.45)}
.ms-empty{color:var(--faint);font-size:11.5px;padding:5px 4px;font-style:italic}
.ms-single .ms-selected:not(:empty){margin-bottom:2px}
.ms-single .ms-chip{background:linear-gradient(135deg,var(--accent),var(--accent-2));font-weight:600}
.ms-search{width:100%;background:var(--panel-3);border:1px solid var(--line);color:var(--text);
  padding:6px 9px;border-radius:6px;font-size:12px;outline:none;margin:7px 0 6px}
.ms-search:focus{border-color:var(--accent)}
.ms-avail{display:flex;flex-wrap:wrap;gap:5px;max-height:130px;overflow-y:auto}
.ms-opt{display:inline-flex;align-items:center;gap:6px;background:var(--panel-3);border:1px solid var(--line);
  color:var(--text);border-radius:6px;padding:4px 9px;font-size:12px;cursor:pointer;transition:.1s}
.ms-opt:hover{border-color:var(--accent);background:var(--panel)}
.ms-kind{font-size:9.5px;color:var(--faint)}
.ms-none{color:var(--faint);font-size:11px;padding:4px}
.ms-count{color:var(--accent);font-weight:600}

/* ---------- Annotation editor popup ---------- */
.ann-pop{position:fixed;z-index:300;background:var(--panel-3);border:1px solid var(--line);
  border-radius:10px;box-shadow:var(--shadow);padding:6px}
.ap-row{display:flex;align-items:center;gap:6px}
.ap-btn{background:var(--panel-2);border:1px solid var(--line);color:var(--text);width:28px;height:28px;
  border-radius:6px;cursor:pointer;font-size:13px;display:flex;align-items:center;justify-content:center;padding:0}
.ap-btn:hover{border-color:var(--accent)}
.ap-btn.on{background:var(--accent);color:#fff;border-color:var(--accent)}
.ap-size{display:flex;align-items:center;gap:4px;font-size:11px;color:var(--muted)}
.ap-size input{width:46px;background:var(--panel-2);border:1px solid var(--line);color:var(--text);
  border-radius:5px;padding:4px 5px;font-size:12px}
.ann-pop input[type=color]{width:24px;height:24px;border:1px solid var(--line);border-radius:6px;background:none;padding:1px;cursor:pointer}
.ann-pop select{background:var(--panel-2);border:1px solid var(--line);color:var(--text);border-radius:6px;font-size:11px;padding:4px}
.ap-sep{width:1px;height:22px;background:var(--line);margin:0 2px}
.ap-lbl{display:flex;align-items:center;gap:3px;font-size:12px;color:var(--muted)}
.ap-btn.off{opacity:.45}

/* plot-level color override rows */
.color-ov{display:flex;align-items:center;gap:9px;margin-bottom:7px}
.color-ov input[type=color]{width:30px;height:24px;border:1px solid var(--line);border-radius:6px;background:none;padding:1px;cursor:pointer;flex:0 0 auto}
.color-ov span{flex:1;font-size:12px;color:var(--muted)}
.clr-x{background:var(--panel-3);border:1px solid var(--line);color:var(--muted);width:22px;height:22px;border-radius:5px;cursor:pointer;font-size:11px;padding:0;flex:0 0 auto}
.clr-x:hover:not(:disabled){border-color:var(--accent);color:var(--text)}
.clr-x:disabled{opacity:.3;cursor:default}

/* ---------- Data toolbar + merge ---------- */
.data-toolbar{display:flex;gap:10px;align-items:center;padding:14px 18px;border-bottom:1px solid var(--line);flex:0 0 auto;flex-wrap:wrap}
.data-search{flex:1;min-width:200px;background:var(--panel-2);border:1px solid var(--line);color:var(--text);padding:9px 12px;border-radius:9px;font-size:13px;outline:none}
.data-search:focus{border-color:var(--accent)}
.data-body{display:flex;flex-direction:column;padding:0}
#mg-join select[multiple]{width:100%}
.dg-top{display:flex;align-items:center;gap:5px;margin-bottom:5px}
.dg-fav{background:none;border:none;color:var(--warn);cursor:pointer;font-size:15px;padding:0;line-height:1}
.dg-fav:not(.on){color:var(--faint)}
.dg-kind{flex:1;background:var(--panel-3);border:1px solid var(--line);color:var(--text);border-radius:5px;padding:3px 4px;font-size:11px;max-width:170px}
.dg-cell{cursor:text}
.dg-cell:focus{outline:2px solid var(--accent);outline-offset:-2px;background:var(--panel-3);color:#fff}
.color-row.excluded{opacity:.4}
.color-row .lvl-inc{width:15px;height:15px;accent-color:var(--accent);cursor:pointer;flex:0 0 auto}
.mg-match{font-size:12px;padding:8px 11px;border-radius:8px;margin-bottom:12px;background:var(--panel-2);border:1px solid var(--line)}
.mg-match.ok{color:var(--good);border-color:rgba(57,197,141,.35)}
.mg-match.bad{color:var(--bad);border-color:rgba(255,111,117,.35)}

/* ---------- Sidebar buttons ---------- */
.side-btns{display:flex;flex-direction:column;gap:7px;margin-top:9px}
.side-btns .ghost-btn{width:100%;text-align:left;font-size:12.5px;padding:8px 12px}

/* ---------- Collapsible settings sections ---------- */
.settings-section{border:1px solid var(--line);border-radius:10px;margin-bottom:10px;overflow:hidden;background:var(--panel-2)}
.ss-head{display:flex;align-items:center;justify-content:space-between;padding:11px 13px;cursor:pointer;
  font-size:12px;font-weight:700;letter-spacing:.03em;color:var(--text);user-select:none}
.ss-head:hover{background:var(--panel-3)}
.ss-chev{transition:transform .18s;color:var(--faint);font-size:12px}
.settings-section.open .ss-chev{transform:rotate(180deg)}
.ss-body{display:none;padding:2px 13px 13px}
.settings-section.open .ss-body{display:block}
.ss-body .field:first-child{margin-top:10px}
.row-2.tight{gap:6px}

/* order buttons in color rows */
.color-row{gap:8px}
.color-row span:not(.ord-btns){flex:1}
.ord-btns{display:flex;gap:3px;margin-left:auto}
.ord-btns button{background:var(--panel-3);border:1px solid var(--line);color:var(--muted);
  width:22px;height:22px;border-radius:5px;cursor:pointer;font-size:9px;padding:0;line-height:1}
.ord-btns button:hover:not(:disabled){border-color:var(--accent);color:var(--text)}
.ord-btns button:disabled{opacity:.3;cursor:default}

/* ---------- Data viewer / editor ---------- */
.data-body{flex:1;overflow:auto;padding:0}
.dg-wrap{overflow:auto;height:100%}
.dg-table{border-collapse:collapse;font-size:12px;font-variant-numeric:tabular-nums;width:max-content;min-width:100%}
.dg-table th,.dg-table td{border:1px solid var(--line);padding:6px 9px;white-space:nowrap;text-align:left}
.dg-table thead th{position:sticky;top:0;background:var(--panel-2);z-index:2;vertical-align:top;min-width:130px}
.dg-idx{position:sticky;left:0;background:var(--panel-2);color:var(--faint);text-align:right;z-index:1}
.dg-table thead .dg-idx{z-index:3}
.dg-name{width:100%;background:var(--panel-3);border:1px solid var(--line);color:var(--text);
  padding:4px 6px;border-radius:5px;font-size:12px;font-weight:600;margin-bottom:5px}
.dg-controls{display:flex;gap:6px;align-items:center;margin-bottom:4px}
.dg-type{flex:1;background:var(--panel-3);border:1px solid var(--line);color:var(--text);border-radius:5px;padding:3px 4px;font-size:11px}
.dg-inc{display:flex;align-items:center;gap:4px;font-size:11px;color:var(--muted);cursor:pointer}
.dg-inc input{accent-color:var(--accent)}
.dg-meta{font-size:10px;color:var(--faint);font-weight:400}
.dg-table td.dg-ex,.dg-table th.dg-ex{opacity:.4}
.data-body .ws-header{flex:0 0 auto}

/* ---------- Import grid preview ---------- */
.modal-lg{width:820px}
.imp-controls{display:flex;gap:14px;align-items:flex-end;flex-wrap:wrap;margin-bottom:14px}
.imp-controls .field{margin-bottom:0;min-width:120px}
.imp-controls .row-2{min-width:150px}
.imp-merge{margin-bottom:2px;white-space:nowrap}
.imp-grid{border:1px solid var(--line);border-radius:9px;overflow:auto;max-height:300px;background:var(--panel-2)}
.ig-table{border-collapse:collapse;font-size:11.5px;width:max-content;min-width:100%}
.ig-table td{border:1px solid var(--line);padding:5px 9px;white-space:nowrap;max-width:150px;overflow:hidden;text-overflow:ellipsis;color:var(--muted)}
.ig-rownum{position:sticky;left:0;background:var(--panel-3);color:var(--faint);text-align:right;cursor:pointer;font-weight:600}
.ig-rownum:hover{background:var(--accent);color:#fff}
.ig-header td{background:rgba(15,181,174,.16);color:var(--text);font-weight:600}
.ig-header .ig-rownum{background:var(--accent);color:#fff}
.ig-data td{color:var(--text)}
.ig-skip td{opacity:.5}
.ig-more{color:var(--faint)}
.imp-cols{display:flex;flex-wrap:wrap;gap:6px;max-height:90px;overflow:auto}
.imp-chip{background:var(--panel-3);border:1px solid var(--line);border-radius:6px;padding:3px 9px;font-size:11.5px;color:var(--text)}
.imp-chip.more{color:var(--faint)}

/* summary table wrap adapts to theme */
.summary-wrap{padding:22px;overflow:auto;height:100%}
.summary-table .sub{color:var(--faint);font-size:11px}
.summary-table .lvl{padding-left:22px;color:var(--muted)}
.summary-table .sum-edit{cursor:text;border-radius:4px;padding:0 3px;margin:0 -3px;display:inline-block;min-width:1ch}
.summary-table .sum-edit:hover{background:rgba(15,181,174,.14)}
.summary-table .sum-edit:focus{outline:2px solid var(--accent);outline-offset:1px;background:rgba(15,181,174,.10)}

/* ---------- Modal (Excel import) ---------- */
.modal-overlay{
  position:fixed;inset:0;background:rgba(6,9,16,.72);backdrop-filter:blur(3px);
  display:flex;align-items:center;justify-content:center;z-index:200;padding:24px;
}
.modal{
  background:var(--panel);border:1px solid var(--line);border-radius:16px;
  box-shadow:var(--shadow);width:640px;max-width:100%;max-height:88vh;overflow-y:auto;padding:26px 28px;
}
.modal h3{margin:0 0 4px;font-size:19px;font-weight:700}
.modal-sub{margin:0 0 20px;color:var(--muted);font-size:13px;line-height:1.5}
.modal .field{margin-bottom:14px}
.xl-preview{border:1px solid var(--line);border-radius:10px;overflow:auto;max-height:280px;background:var(--panel-2)}
.xl-preview table{margin:0}
.xl-preview th,.xl-preview td{white-space:nowrap;max-width:180px;overflow:hidden;text-overflow:ellipsis;padding:7px 12px}
.xl-note{padding:8px 12px;font-size:11.5px;color:var(--faint);border-top:1px solid var(--line)}
.xl-empty{padding:20px;text-align:center;color:var(--warn);font-size:13px}
.modal-actions{display:flex;justify-content:flex-end;gap:10px;margin-top:20px}
.primary-btn{
  background:linear-gradient(135deg,var(--accent),var(--accent-2));border:none;color:#fff;
  padding:9px 20px;border-radius:9px;cursor:pointer;font-size:13px;font-weight:600;transition:.12s;
}
.primary-btn:hover{filter:brightness(1.08)}

/* ---------- Toast ---------- */
.toast{
  position:fixed;bottom:26px;left:50%;transform:translateX(-50%) translateY(20px);
  background:var(--panel-3);border:1px solid var(--line);color:var(--text);
  padding:12px 20px;border-radius:10px;font-size:13px;box-shadow:var(--shadow);
  opacity:0;pointer-events:none;transition:.25s;z-index:100;max-width:80vw;
}
.toast.show{opacity:1;transform:translateX(-50%) translateY(0)}
.toast.err{border-color:var(--bad);color:#ffd7d9}

/* scrollbars */
::-webkit-scrollbar{width:10px;height:10px}
::-webkit-scrollbar-thumb{background:var(--panel-3);border-radius:6px}
::-webkit-scrollbar-track{background:transparent}

@media (max-width:1000px){
  .feature-grid{grid-template-columns:1fr}
  .config-panel{width:280px;flex-basis:280px}
}

/* ============================================================
   Strain visualizations (demo)
   ============================================================ */
.side-tag{font-size:9px;font-weight:700;letter-spacing:.05em;color:var(--accent);
  background:rgba(15,181,174,.14);border:1px solid rgba(15,181,174,.4);
  border-radius:20px;padding:1px 6px;margin-left:5px;text-transform:none;vertical-align:middle}
.side-hint{font-size:10.5px;color:var(--faint);margin-top:8px;line-height:1.5}
#strain-screen{display:none;flex-direction:column}
#strain-screen.active{display:flex}
.strain-transport{display:flex;align-items:center;gap:10px;flex-wrap:wrap;justify-content:flex-end}
.st-btn{background:linear-gradient(135deg,var(--accent),var(--accent-2));border:none;color:#04231f;
  width:34px;height:34px;border-radius:8px;cursor:pointer;font-size:13px;font-weight:700;flex:0 0 auto;
  display:flex;align-items:center;justify-content:center}
.st-btn:hover{filter:brightness(1.08)}
.st-scrub{width:180px;accent-color:var(--accent);cursor:pointer}
.st-clock{font-size:12px;color:var(--muted);font-variant-numeric:tabular-nums;min-width:54px}
.st-speed-lbl{font-size:12px;color:var(--muted);display:flex;align-items:center;gap:6px}
.st-speed{background:var(--panel-2);border:1px solid var(--line);color:var(--text);
  border-radius:7px;padding:5px 7px;font-size:12px;outline:none}

.strain-note{font-size:11.5px;color:var(--muted);line-height:1.55;margin:16px 0;
  padding:11px 12px;background:var(--panel-2);border:1px solid var(--line);
  border-left:3px solid var(--accent);border-radius:9px}
.strain-note b{color:var(--text)}
.strain-readout{display:flex;flex-direction:column;gap:8px;margin-top:8px}
.ro-row{display:flex;align-items:baseline;justify-content:space-between;gap:10px;
  padding:9px 12px;background:var(--panel-2);border:1px solid var(--line);border-radius:9px}
.ro-k{font-size:11px;color:var(--faint);text-transform:uppercase;letter-spacing:.05em}
.ro-v{font-size:16px;font-weight:700;color:var(--text);font-variant-numeric:tabular-nums}

/* polar */
.polar-wrap{display:flex;align-items:center;justify-content:center;gap:22px;height:100%;min-height:460px}
.polar-stage{flex:1;max-width:560px;display:flex;align-items:center;justify-content:center}
#polar-svg{width:100%;height:auto;max-height:72vh}
#polar-svg path,#polar-svg circle{transition:fill .12s linear}
.strain-colorbar{display:flex;flex-direction:column;align-items:center;gap:6px;flex:0 0 auto;padding:4px 2px}
.cb-cap{font-size:11px;color:var(--muted);font-weight:600}
.cb-bar-wrap{position:relative;height:220px}
.cb-bar{width:20px;height:220px;border-radius:5px;border:1px solid var(--line)}
.cb-ticks{position:absolute;inset:0;left:24px;width:34px}
.cb-tick{position:absolute;transform:translateY(-50%);font-size:11px;color:var(--muted);
  font-variant-numeric:tabular-nums;white-space:nowrap}
.cb-tick::before{content:"";position:absolute;left:-6px;top:50%;width:4px;height:1px;background:var(--faint)}
.cb-unit{font-size:10px;color:var(--faint);margin-top:2px}

/* curves + smoothing plot */
.strain-plot{width:100%;height:100%;min-height:460px;background:var(--panel);
  border-radius:12px;box-shadow:var(--shadow);overflow:hidden}

/* beating heart readout */
.strain-heart{display:flex;align-items:center;gap:12px;margin-top:16px;padding:12px;
  background:var(--panel-2);border:1px solid var(--line);border-radius:11px}
.strain-heart svg{flex:0 0 auto}
#heart-path{transition:fill .1s linear}
.heart-read{display:flex;flex-direction:column;line-height:1.1}
.hr-v{font-size:30px;font-weight:750;color:var(--text);font-variant-numeric:tabular-nums;letter-spacing:-.5px}
.hr-k{font-size:11px;color:var(--faint);text-transform:uppercase;letter-spacing:.05em;margin-top:3px}

@media (max-width:1000px){
  .polar-wrap{flex-direction:column;gap:10px}
  .cb-bar-wrap{height:160px}.cb-bar{height:160px}
}

/* ============================================================
   Layout refresh (Nov 2026): grouped navigation, tabbed settings,
   header actions, scope bar
   ============================================================ */
/* sidebar */
#sidebar{padding:18px 16px}
.brand{background:none;border:none;color:inherit;font:inherit;text-align:left;cursor:pointer;padding:4px;margin:0 0 20px -4px;border-radius:12px;width:calc(100% + 8px)}
.brand:hover{background:rgba(255,255,255,.03)}
.brand:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.side-section{margin-bottom:20px}
.dataset-chip b{display:block;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.side-btns--row{flex-direction:row;gap:5px}
.side-btns--row .ghost-btn{flex:1;text-align:center;padding:6px 4px;font-size:11.5px;width:auto}
.side-primary{width:100%;padding:9px 12px;font-size:12.5px;text-align:left}
#analysis-nav{display:flex;flex-direction:column;gap:2px}
.nav-group{font-size:10px;letter-spacing:.08em;text-transform:uppercase;color:var(--faint);font-weight:600;margin:10px 0 3px 11px}
.nav-group:first-child{margin-top:0}
button.nav-item{width:100%;background:none;font:inherit;font-size:13px;text-align:left;color:var(--muted)}
button.nav-item.active{background:var(--panel-3);color:#fff;border-color:var(--line)}
.nav-item{padding:7px 10px}
.nav-item .ni-t{flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.nav-item .ni-req{flex:0 0 auto}
.nav-item.disabled:hover{background:none;color:var(--muted)}
.nav-item:focus-visible,.cfg-tab:focus-visible,.ghost-btn:focus-visible,.primary-btn:focus-visible{outline:2px solid var(--accent);outline-offset:1px}
.side-dash{margin-top:12px;width:100%;text-align:left;font-size:12.5px;padding:8px 12px}

/* upload screen */
.upload-hero{max-width:880px;padding:56px 32px 48px;position:relative}
.upload-back{position:absolute;left:32px;top:20px;font-size:12.5px;padding:7px 12px}
.dropzone{margin-bottom:16px}
.dropzone:focus-visible{outline:2px solid var(--accent);outline-offset:3px}
.demo-btn{margin:0 auto 34px;display:flex;flex-direction:column;align-items:center;gap:2px;padding:10px 20px}
.demo-meta{font-size:11px;color:var(--faint);font-weight:400}
.feature-groups{display:grid;grid-template-columns:repeat(2,1fr);gap:14px;text-align:left}
.fg{background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:14px 14px 6px}
.fg-h{font-size:10.5px;text-transform:uppercase;letter-spacing:.1em;color:var(--accent);font-weight:700;margin-bottom:10px}
.fg .feature{background:none;border:none;border-radius:0;padding:0 0 10px;margin-bottom:10px;border-bottom:1px solid var(--line)}
.fg .feature:last-child{border-bottom:none;margin-bottom:0}

/* workspace header */
.ws-header{padding:16px 26px 14px;align-items:center}
.ws-head-text{min-width:0}
.ws-crumb{font-size:10.5px;text-transform:uppercase;letter-spacing:.12em;color:var(--accent);font-weight:700;margin-bottom:3px}
.ws-header h2{font-size:20px;margin:0 0 3px}
.ws-desc{font-size:12.5px;max-width:720px}
.ws-actions{display:flex;gap:8px;flex:0 0 auto;flex-wrap:wrap;justify-content:flex-end}
.ws-actions .ghost-btn,.ws-actions .primary-btn{font-size:12.5px;padding:8px 13px;white-space:nowrap}

/* tabbed config panel */
.config-panel{padding:0;display:flex;flex-direction:column;width:330px;flex-basis:330px}
.cfg-tabs{display:flex;gap:4px;padding:10px 12px;border-bottom:1px solid var(--line);background:var(--panel);position:sticky;top:0;z-index:3;flex:0 0 auto}
.cfg-tab{flex:1;display:flex;align-items:center;justify-content:center;gap:6px;background:transparent;border:1px solid transparent;color:var(--muted);
  padding:8px 6px;border-radius:9px;font-size:12.5px;font-weight:600;cursor:pointer;transition:.12s}
.cfg-tab:hover{color:var(--text);background:var(--panel-2)}
.cfg-tab.on{background:var(--panel-3);color:#fff;border-color:var(--line);box-shadow:inset 0 -2px 0 var(--accent)}
.ct-i{font-size:13px;color:var(--accent);opacity:.9}
.cfg-pane{flex:1;overflow-y:auto;padding:16px 16px 28px}
.cfg-pane[hidden]{display:none}
#scope-fields{margin-top:18px}
.config-section-title.sub{margin:14px 0 8px;font-size:9.5px}
.ss-badge{display:inline-block;background:var(--warn);color:#2a1a00;border-radius:20px;font-size:10px;padding:0 6px;margin-left:4px;font-weight:700}
.link-btn{background:none;border:none;color:var(--accent);cursor:pointer;font-size:11px;padding:0 0 0 6px;text-decoration:underline}
.lvl-checks{display:flex;flex-wrap:wrap;gap:2px 14px;margin-bottom:4px}
.lvl-checks .check{margin-bottom:8px}
.filt-active{color:var(--warn)}
.hint a{color:var(--accent)}

/* output */
.output-panel{padding:18px 26px 28px}
.scope-bar{display:flex;flex-wrap:wrap;gap:6px 8px;margin-bottom:12px;min-height:0}
.scope-bar:empty{display:none}
.sb-item{font-size:12px;color:var(--muted);background:var(--panel);border:1px solid var(--line);border-radius:20px;padding:4px 11px;line-height:1.45}
.sb-item b{color:var(--text)}
.sb-k{font-size:10px;text-transform:uppercase;letter-spacing:.08em;color:var(--faint);font-weight:700;margin-right:4px}
.sb-note{color:var(--warn)}
.sb-item:has(.sb-note){border-color:rgba(255,181,71,.35)}
.stat-box .ci{font-size:11px;color:var(--faint);margin-top:3px;font-variant-numeric:tabular-nums}
.swatch{display:inline-block;width:10px;height:10px;border-radius:3px;margin-right:7px;vertical-align:-1px}
.table-scroll{overflow-x:auto}
table.data-table td .sub{color:var(--faint);font-size:11px}
.color-row input.lvl-inc{margin:0}

@media (max-width:1100px){
  .ws-actions .ghost-btn{padding:7px 9px}
  .config-panel{width:300px;flex-basis:300px}
}
@media (max-width:900px){
  .feature-groups{grid-template-columns:1fr}
  .ws-header{flex-direction:column;align-items:flex-start}
  .ws-actions{justify-content:flex-start}
}
.dash-count:empty{display:none}
/* Plotly 2.35 shows an editable "Click to enter Plot subtitle" placeholder; we don't use subtitles */
.gtitle-subtitle.js-placeholder{display:none}
/* inside the portfolio's studio window, keep header controls clear of its close button */
.embedded .ws-header{padding-right:84px}
.ws-desc{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}