/* Layout: full-bleed WebGL view; zoom ladder as a left rail, level title + tools across the top,
   scale bar + clock along the bottom, object guide as a right drawer.
   One deliberate dark look: this is a window into space and is shown on projectors. */
@font-face{font-family:'Atkinson Hyperlegible';font-weight:400;font-style:normal;font-display:swap;src:url(fonts/atkinson-hyperlegible-latin-400-normal.woff2) format('woff2')}
@font-face{font-family:'Atkinson Hyperlegible';font-weight:700;font-style:normal;font-display:swap;src:url(fonts/atkinson-hyperlegible-latin-700-normal.woff2) format('woff2')}
@font-face{font-family:'Atkinson Hyperlegible';font-weight:400;font-style:italic;font-display:swap;src:url(fonts/atkinson-hyperlegible-latin-400-italic.woff2) format('woff2')}
@font-face{font-family:'Unbounded';font-weight:400;font-display:swap;src:url(fonts/unbounded-latin-400-normal.woff2) format('woff2')}
@font-face{font-family:'Unbounded';font-weight:600;font-display:swap;src:url(fonts/unbounded-latin-600-normal.woff2) format('woff2')}
@font-face{font-family:'JetBrains Mono';font-weight:400;font-display:swap;src:url(fonts/jetbrains-mono-latin-400-normal.woff2) format('woff2'),url(fonts/jetbrains-mono-greek-400-normal.woff2) format('woff2')}
@font-face{font-family:'JetBrains Mono';font-weight:600;font-display:swap;src:url(fonts/jetbrains-mono-latin-600-normal.woff2) format('woff2')}

:root{
  --space:#03040a;
  --panel:rgba(10,13,27,.84);
  --panel-solid:#0a0d1b;
  --panel-2:rgba(255,255,255,.035);
  --line:rgba(150,166,224,.18);
  --line-2:rgba(150,166,224,.32);
  --fg:#e9ecf7;
  --muted:#97a0bd;
  --dim:#6b7391;
  --hot:#ffb547;       /* warm starlight: interaction + "you are here" */
  --cold:#6fd3ff;      /* cool starlight: data */
  --violet:#c4a6ff;
  --good:#7ee2a8; --bad:#ff8a7a;
  --real:#7ee2a8; --model:#c4a6ff; --scale:#ffcf7a;
  --font-display:'Unbounded','Segoe UI Semibold',system-ui,sans-serif;
  --font-body:'Atkinson Hyperlegible','Segoe UI',system-ui,sans-serif;
  --font-data:'JetBrains Mono',Consolas,'Cascadia Mono',ui-monospace,monospace;
  --ui:1;
  --ladder-w:244px;
  --top-h:104px;  /* measured from the top bar at run time */
  color-scheme:dark;
}
*{box-sizing:border-box}
[hidden]{display:none!important}
html,body{height:100%;margin:0;overflow:hidden;background:var(--space);color:var(--fg);font-family:var(--font-body);font-size:calc(15px*var(--ui));line-height:1.45}
button,select,input{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--hot);outline-offset:2px}
#gl{position:fixed;inset:0;width:100%;height:100%;display:block;outline:none}
.eyebrow,.kicker{font-family:var(--font-data);font-size:calc(10.5px*var(--ui));letter-spacing:.12em;text-transform:uppercase;color:var(--muted)}
.muted{color:var(--muted)}

/* ---------- ladder ---------- */
#ladder{position:fixed;left:0;top:0;bottom:0;width:var(--ladder-w);z-index:10;display:flex;flex-direction:column;
  background:linear-gradient(90deg,rgba(3,4,10,.94),rgba(3,4,10,.78));border-right:1px solid var(--line);padding:18px 14px 14px}
.brand{display:flex;gap:10px;align-items:center;padding:0 4px 16px}
.brand-mark{width:30px;height:30px;border-radius:50%;flex:none;
  background:radial-gradient(circle at 50% 50%,#fff 0 9%,#ffd38a 14%,rgba(255,181,71,.35) 34%,rgba(111,211,255,.15) 60%,transparent 70%);box-shadow:0 0 18px rgba(255,181,71,.35)}
.brand-name{font-family:var(--font-display);font-weight:600;font-size:calc(13px*var(--ui));letter-spacing:.01em;line-height:1.18}
.brand-sub{font-size:calc(11px*var(--ui));color:var(--muted);line-height:1.3;margin-top:2px}
.ladder-head{display:flex;justify-content:space-between;font-family:var(--font-data);font-size:calc(10px*var(--ui));letter-spacing:.12em;text-transform:uppercase;color:var(--dim);padding:6px 6px}
#ladder-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:2px;flex:1;min-height:0;overflow-y:auto;overflow-x:hidden;position:relative}
#ladder-list::before{content:"";position:absolute;left:15px;top:14px;bottom:14px;width:1px;background:linear-gradient(var(--hot),var(--cold) 45%,var(--violet))}
.rung{position:relative;display:grid;grid-template-columns:20px 1fr;gap:8px;align-items:start;width:100%;text-align:left;background:none;border:1px solid transparent;border-radius:8px;padding:7px 8px 7px 6px;cursor:pointer}
.rung:hover{background:var(--panel-2);border-color:var(--line)}
.rung .dot{width:11px;height:11px;margin:4px 0 0 4px;border-radius:50%;background:var(--space);border:2px solid var(--muted)}
.rung .nm{font-weight:700;font-size:calc(13.5px*var(--ui));display:flex;justify-content:space-between;gap:6px}
.rung .sz{font-family:var(--font-data);font-size:calc(10.5px*var(--ui));color:var(--muted);display:block;line-height:1.35}
.rung .sz i{display:block;font-style:normal;color:var(--cold)}
.rung.on{background:rgba(255,181,71,.1);border-color:rgba(255,181,71,.45)}
.rung.on .dot{background:var(--hot);border-color:var(--hot);box-shadow:0 0 10px var(--hot)}
.rung.branch{margin-left:16px;grid-template-columns:16px 1fr}
.rung.branch .dot{width:9px;height:9px;border-radius:2px;transform:rotate(45deg)}
.rung[disabled]{opacity:.45;cursor:default}
.ladder-foot{display:flex;flex-direction:column;gap:10px;padding-top:12px;border-top:1px solid var(--line)}
.depth{display:grid;grid-template-columns:1fr 1fr;background:var(--panel-2);border:1px solid var(--line);border-radius:999px;padding:3px}
.seg{border:0;background:none;border-radius:999px;padding:6px 8px;cursor:pointer;font-size:calc(13px*var(--ui));color:var(--muted)}
.seg.on{background:var(--hot);color:#1d1404;font-weight:700}
.foot-row{display:flex;gap:4px;justify-content:space-between}
.ghost{background:none;border:0;color:var(--muted);cursor:pointer;font-size:calc(12.5px*var(--ui));padding:4px 6px;border-radius:6px}
.ghost:hover{color:var(--fg);background:var(--panel-2)}

/* ---------- top bar ---------- */
#topbar{position:fixed;left:var(--ladder-w);right:0;top:0;z-index:8;display:flex;justify-content:space-between;align-items:flex-start;gap:16px;
  padding:16px 20px 26px;background:linear-gradient(rgba(3,4,10,.8),rgba(3,4,10,0));pointer-events:none}
#topbar>*{pointer-events:auto}
.lvl{min-width:0;flex:0 1 auto}
.lvl h1{font-family:var(--font-display);font-weight:600;font-size:calc(22px*var(--ui));margin:2px 0 6px;letter-spacing:.01em;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.badges{display:flex;flex-wrap:wrap;gap:6px}
.badge{display:inline-flex;align-items:center;gap:5px;font-family:var(--font-data);font-size:calc(10.5px*var(--ui));padding:2px 8px;border-radius:999px;border:1px solid;white-space:nowrap}
.badge::before{content:"";width:6px;height:6px;border-radius:50%;background:currentColor}
.badge.real{color:var(--real);border-color:rgba(126,226,168,.4)}
.badge.model{color:var(--model);border-color:rgba(196,166,255,.4)}
.badge.scale{color:var(--scale);border-color:rgba(255,207,122,.4)}
.tools{display:flex;flex-wrap:wrap;gap:6px;justify-content:flex-end}
#topbar>.tools{flex:0 1 auto;max-width:72%}
.tbtn{display:inline-flex;align-items:center;gap:6px;background:var(--panel);border:1px solid var(--line);border-radius:999px;padding:7px 13px;cursor:pointer;
  font-size:calc(13px*var(--ui));white-space:nowrap;backdrop-filter:blur(8px)}
.tbtn:hover{border-color:rgba(255,181,71,.55)}
.tbtn[aria-pressed="true"]{background:rgba(255,181,71,.14);border-color:var(--hot)}
.tbtn.primary{background:var(--hot);color:#1d1404;border-color:var(--hot);font-weight:700}
.tbtn[disabled]{opacity:.45;cursor:default}

/* ---------- labels ---------- */
#labels{position:fixed;inset:0;pointer-events:none;z-index:4;overflow:hidden}
.lbl{position:absolute;left:0;top:0;pointer-events:none;white-space:nowrap;border:0;background:none;color:var(--fg);padding:2px 6px 8px;text-align:center;opacity:0;transition:opacity .25s}
.lbl.click{cursor:pointer}
.lbl .n{display:block;font-weight:700;font-size:calc(12.5px*var(--ui));text-shadow:0 0 2px #000,0 0 5px #000,0 0 10px rgba(0,0,0,.9)}
.lbl .t{display:block;font-family:var(--font-data);font-size:calc(10.5px*var(--ui));color:#9fe3ff;text-shadow:0 0 2px #000,0 0 5px #000,0 0 9px rgba(0,0,0,.9)}
.lbl.tick::after{content:"";position:absolute;left:50%;bottom:0;width:1px;height:7px;background:rgba(233,236,247,.55)}
.lbl.big .n{font-family:var(--font-display);font-weight:600;font-size:calc(13px*var(--ui))}
.lbl.here .n{color:var(--hot)}
.lbl.dim .n{font-weight:400;color:#c9d1ec;font-size:calc(11.5px*var(--ui))}
.lbl.side{padding:0 0 0 12px;text-align:left}
.lbl.side::before{content:"";position:absolute;left:0;top:50%;width:7px;height:1px;background:rgba(233,236,247,.6)}
.lbl.click:hover .n,.lbl.sel .n{color:var(--hot)}
.lbl.data .n{font-family:var(--font-data);font-weight:400;font-size:calc(11px*var(--ui));color:var(--cold)}

/* ---------- bottom bar ---------- */
#bottombar{position:fixed;left:var(--ladder-w);right:0;bottom:0;z-index:8;display:flex;justify-content:space-between;align-items:flex-end;gap:16px;
  padding:30px 20px 16px;background:linear-gradient(rgba(3,4,10,0),rgba(3,4,10,.85));pointer-events:none}
#bottombar>*{pointer-events:auto}
#scalebar{min-width:220px}
.sb-line{height:10px;display:flex;align-items:flex-end}
#sb-bar{display:block;height:6px;border:2px solid var(--fg);border-top:0;width:120px;transition:width .2s}
.sb-text{margin-top:5px;font-size:calc(12.5px*var(--ui));display:flex;flex-direction:column}
.sb-text b{font-family:var(--font-data);font-weight:600}
.sb-text span{color:var(--muted);font-size:calc(12px*var(--ui))}
#timebar{display:flex;align-items:center;gap:16px;background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:10px 16px;backdrop-filter:blur(10px)}
.tb-btns{display:flex;gap:4px}
.icon{width:36px;height:36px;border-radius:50%;border:1px solid var(--line);background:var(--panel-2);cursor:pointer;font-size:calc(15px*var(--ui));line-height:1;display:grid;place-items:center}
.icon:hover{border-color:var(--hot)}
.icon.play{width:44px;height:44px;background:var(--hot);color:#1d1404;border-color:var(--hot);font-size:calc(16px*var(--ui))}
.icon[aria-pressed="true"]{border-color:var(--cold);color:var(--cold)}
.tb-clock{min-width:250px}
#t-main{font-family:var(--font-display);font-size:calc(16px*var(--ui));color:var(--hot);font-variant-numeric:tabular-nums}
#t-sub{font-size:calc(12.5px*var(--ui));color:var(--muted)}
.tb-rate{display:flex;flex-direction:column;align-items:flex-start;min-width:150px}
.tb-rate b{font-family:var(--font-data);font-size:calc(13px*var(--ui));color:var(--cold);font-weight:400}

.hint{position:fixed;left:calc(var(--ladder-w) + 50%);transform:translateX(calc(-50% - var(--ladder-w)/2));bottom:120px;z-index:9;background:var(--panel);
  border:1px solid var(--hot);border-radius:999px;padding:8px 18px;font-size:calc(14px*var(--ui));pointer-events:none}
.hint b{color:var(--hot)}
#toast{position:fixed;left:calc(var(--ladder-w) + 20px);bottom:120px;z-index:12;background:var(--panel);border:1px solid var(--cold);border-radius:10px;padding:9px 14px;max-width:520px;font-size:calc(13.5px*var(--ui))}

/* ---------- drawer ---------- */
#drawer{position:fixed;right:16px;top:calc(var(--top-h) + 4px);bottom:118px;width:min(400px,34vw);z-index:9;background:var(--panel);border:1px solid var(--line);border-radius:14px;
  backdrop-filter:blur(12px);display:flex;flex-direction:column;overflow:hidden}
.dr-head{padding:16px 18px 12px;border-bottom:1px solid var(--line)}
.dr-top{display:flex;justify-content:space-between;align-items:center;gap:8px}
.x{width:30px;height:30px;border-radius:8px;border:1px solid var(--line);background:none;color:var(--muted);cursor:pointer;font-size:calc(17px*var(--ui));line-height:1}
.x:hover{color:var(--fg);border-color:var(--line-2)}
#dr-title{font-family:var(--font-display);font-weight:600;font-size:calc(20px*var(--ui));line-height:1.2;margin:8px 0;text-wrap:balance}
.chips{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:8px}
.chip{font-family:var(--font-data);font-size:calc(11.5px*var(--ui));background:var(--hot);color:#1d1404;border-radius:5px;padding:2px 8px}
.chip.alt{background:none;color:var(--cold);border:1px solid rgba(111,211,255,.45)}
.dr-body{padding:14px 18px 18px;overflow-y:auto;min-height:0;flex:1}
.dr-body p{margin:0 0 12px;max-width:64ch}
.dr-body h3{font-family:var(--font-data);font-weight:600;font-size:calc(10.5px*var(--ui));letter-spacing:.12em;text-transform:uppercase;color:var(--muted);margin:18px 0 8px}
.dr-body h3:first-child{margin-top:0}
.facts{display:grid;grid-template-columns:auto 1fr;gap:6px 14px;margin:0;font-size:calc(13.5px*var(--ui))}
.facts dt{color:var(--muted)}
.facts dd{margin:0;font-family:var(--font-data);font-size:calc(12.5px*var(--ui));min-width:0;font-variant-numeric:tabular-nums}
.ask{border-left:3px solid var(--hot);border-radius:0;padding:8px 12px;background:rgba(255,181,71,.07);font-style:italic}
.note{border:1px dashed rgba(111,211,255,.45);border-radius:8px;padding:9px 12px;font-size:calc(13.5px*var(--ui));color:#cfe9f7}
.note b{color:var(--cold)}
.tip{font-size:calc(13px*var(--ui));color:var(--muted)}
.deep-only{border-top:1px solid var(--line);padding-top:4px}
.dr-actions{display:flex;flex-wrap:wrap;gap:8px;padding:12px 18px;border-top:1px solid var(--line)}
.dr-actions:empty{display:none}
.life{margin:4px 0 6px}
.life-bar{position:relative;height:14px;border-radius:7px;overflow:hidden;display:flex;background:var(--panel-2)}
.life-bar i{display:block;height:100%}
.life-mark{position:absolute;top:-3px;width:2px;height:20px;background:#fff;box-shadow:0 0 6px #fff}
.life-legend{display:flex;flex-wrap:wrap;gap:4px 12px;font-size:calc(12px*var(--ui));color:var(--muted);margin-top:6px}
.life-legend span::before{content:"";display:inline-block;width:9px;height:9px;border-radius:2px;margin-right:5px;background:var(--c)}

/* ---------- overlays ---------- */
.overlay{position:fixed;inset:0;z-index:30;display:grid;place-items:center;background:rgba(2,3,8,.62);backdrop-filter:blur(3px);padding:24px}
.modal{width:min(560px,100%);max-height:calc(100vh - 48px);overflow:auto;background:var(--panel-solid);border:1px solid var(--line);border-radius:16px;padding:24px 26px}
.modal.wide{width:min(760px,100%)}
.modal h2{font-family:var(--font-display);font-weight:600;font-size:calc(21px*var(--ui));margin:6px 0 12px;text-wrap:balance}
.modal p{margin:0 0 12px;max-width:68ch}
.howto{display:grid;grid-template-columns:repeat(auto-fill,minmax(210px,1fr));gap:8px;margin:14px 0 16px}
.howto div{background:var(--panel-2);border:1px solid var(--line);border-radius:10px;padding:9px 12px;display:flex;flex-direction:column}
.howto b{color:var(--hot)}
.howto span{color:var(--muted);font-size:calc(13px*var(--ui))}
.row{display:flex;flex-wrap:wrap;gap:8px;margin-top:10px}
.field{display:flex;flex-direction:column;gap:6px;margin:0 0 14px}
.field span{color:var(--muted);font-size:calc(13px*var(--ui))}
.field select{background:var(--panel-2);border:1px solid var(--line-2);border-radius:8px;padding:8px 10px}
.field select option{background:var(--panel-solid)}
.check{display:flex;gap:8px;align-items:center;margin:4px 0 12px}
.credits{padding-left:18px;margin:0 0 14px}
.credits li{margin:6px 0}
.opts{display:grid;gap:8px;margin:12px 0}
.opt{text-align:left;background:var(--panel-2);border:1px solid var(--line);border-radius:9px;padding:11px 13px;cursor:pointer}
.opt:hover:not([disabled]){border-color:var(--hot)}
.opt.right{border-color:var(--good);background:rgba(126,226,168,.12)}
.opt.wrong{border-color:var(--bad);background:rgba(255,138,122,.1)}
.fb{padding:10px 12px;border-radius:9px;background:var(--panel-2);margin-bottom:10px}
.fb b{display:block;margin-bottom:2px}
.prog{height:4px;background:rgba(255,255,255,.08);border-radius:4px;overflow:hidden;margin:12px 0}
.prog i{display:block;height:100%;width:0;background:var(--hot);transition:width .3s}

#fade{position:fixed;inset:0;z-index:20;pointer-events:none;opacity:0;background:radial-gradient(circle at 50% 50%,rgba(255,255,255,.12),var(--space) 70%);transition:opacity .35s ease}
#fade.on{opacity:1}
#gl.warp-in{animation:warpin .35s ease-in forwards}
#gl.warp-out{animation:warpout .35s ease-in forwards}
@keyframes warpin{to{transform:scale(1.35);filter:blur(3px)}}
@keyframes warpout{to{transform:scale(.75);filter:blur(3px)}}

#loading{position:fixed;inset:0;z-index:40;background:var(--space);display:grid;place-items:center;align-content:center;gap:18px;color:var(--muted);font-family:var(--font-data);font-size:13px}
.ld-mark{width:60px;height:60px;border-radius:50%;background:radial-gradient(circle,#fff 0 8%,#ffd38a 14%,rgba(255,181,71,.3) 36%,transparent 68%);animation:pulse 1.6s ease-in-out infinite}
@keyframes pulse{50%{transform:scale(1.25);opacity:.7}}

/* ---------- level UI: history ---------- */
.h-readout{position:fixed;left:calc(var(--ladder-w) + 20px);top:calc(var(--top-h) + 6px);z-index:7;width:300px;background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:12px 14px;backdrop-filter:blur(8px)}
.h-big{font-family:var(--font-display);font-size:calc(19px*var(--ui));color:var(--hot);margin:4px 0 0;line-height:1.2}
.h-ago{color:var(--muted);font-size:calc(12.5px*var(--ui))}
.h-era{margin-top:6px;font-weight:700}
.h-stats{display:grid;grid-template-columns:auto 1fr;gap:3px 12px;margin:8px 0 0;font-size:calc(12px*var(--ui))}
.h-stats dt{color:var(--muted);font-family:var(--font-data);font-size:calc(10px*var(--ui));text-transform:uppercase;letter-spacing:.06em;padding-top:2px}
.h-stats dd{margin:0;font-family:var(--font-data);font-variant-numeric:tabular-nums}
.h-rail{position:fixed;left:calc(var(--ladder-w) + 20px);right:20px;bottom:16px;z-index:9}
.h-meta{display:flex;justify-content:space-between;font-family:var(--font-data);font-size:calc(11px*var(--ui));color:var(--muted)}
.h-meta .note2{color:var(--hot)}
.h-track{position:relative;height:74px}
.h-track .bar{position:absolute;left:0;right:0;top:36px;height:2px;background:linear-gradient(90deg,#fff 0%,var(--hot) 22%,#5a3a2a 30%,var(--cold) 45%,#8fa2ff 75%,var(--violet) 100%);opacity:.75}
.h-tick{position:absolute;top:28px;transform:translateX(-50%);background:none;border:0;padding:0;cursor:pointer;width:18px;height:18px;transition:left .9s cubic-bezier(.6,0,.2,1);z-index:1}
.h-tick i{display:block;width:9px;height:9px;margin:4px auto;border-radius:50%;background:var(--fg);box-shadow:0 0 0 3px var(--space)}
.h-tick span{position:absolute;left:50%;transform:translateX(-50%);font-size:calc(11.5px*var(--ui));white-space:nowrap;color:var(--muted)}
.h-tick.up span{bottom:20px}.h-tick.down span{top:20px}
.h-tick.on i{background:var(--hot);box-shadow:0 0 0 3px var(--space),0 0 12px var(--hot)}
.h-tick.on span,.h-tick:hover span{color:var(--fg)}
.h-track.true .h-tick span{display:none}.h-track.true .h-tick.on span{display:block}
.h-scrub{position:absolute;left:0;right:0;top:26px;width:100%;margin:0;height:22px;opacity:0;cursor:grab;z-index:0}
.h-knob{position:absolute;top:29px;width:2px;height:16px;background:var(--hot);transform:translateX(-50%);pointer-events:none;box-shadow:0 0 10px var(--hot)}
.h-tour{position:fixed;left:calc(var(--ladder-w) + 50%);transform:translateX(calc(-50% - var(--ladder-w)/2));top:calc(var(--top-h) + 6px);z-index:9;display:flex;align-items:center;gap:6px;background:var(--panel);border:1px solid var(--hot);border-radius:999px;padding:5px 6px 5px 14px;font-size:calc(13px*var(--ui))}
.h-tour .pbar{width:80px;height:3px;background:rgba(255,255,255,.12);border-radius:3px;overflow:hidden}
.h-tour .pbar i{display:block;height:100%;width:0;background:var(--hot)}
.h-tour .tbtn{padding:4px 11px}

@media (max-width:1150px){ :root{--ladder-w:210px} #drawer{width:340px} .tb-clock{min-width:200px} .tb-rate{min-width:120px} }
@media (max-height:820px){ #ladder{padding-top:12px} .brand{padding-bottom:10px} .brand-sub{display:none} .rung{padding:4px 8px 4px 6px} .ladder-foot{gap:6px;padding-top:8px} .seg{padding:4px 8px} }
::-webkit-scrollbar{width:8px;height:8px}
::-webkit-scrollbar-track{background:transparent}
::-webkit-scrollbar-thumb{background:rgba(150,166,224,.28);border-radius:8px}
::-webkit-scrollbar-thumb:hover{background:rgba(150,166,224,.45)}
::-webkit-scrollbar-button{display:none}
@media (prefers-reduced-motion:reduce){ #gl.warp-in,#gl.warp-out{animation:none} .h-tick{transition:none} #fade{transition:none} }

/* ---------- hide / show panels ---------- */
.hide-btn{margin-left:auto;padding:2px 9px;font-size:calc(15px*var(--ui));line-height:1.2}
.edge-btn{position:fixed;z-index:11;left:0;top:14px;background:var(--panel);border:1px solid var(--line);border-left:0;border-radius:0 10px 10px 0;
  padding:8px 12px;cursor:pointer;font-size:calc(13px*var(--ui));color:var(--fg);backdrop-filter:blur(8px)}
.edge-btn:hover{border-color:var(--hot)}
body.no-ladder{--ladder-w:0px}
body.no-ladder #ladder{display:none}
body.no-ui #ladder,body.no-ui #topbar,body.no-ui #bottombar,body.no-ui #drawer,body.no-ui #hint,body.no-ui #toast,
body.no-ui .h-readout,body.no-ui .h-rail,body.no-ui .h-tour,body.no-ui #ladder-show{display:none!important}
body.no-ui{--ladder-w:0px}
#ui-restore{opacity:.55;transition:opacity .2s}
#ui-restore:hover,#ui-restore:focus-visible{opacity:1}
#ladder-show{top:auto;bottom:150px}
#ui-restore{top:14px}

/* ---------- evidence meter ---------- */
.evid{display:flex;align-items:center;gap:10px;margin:2px 0 4px;font-size:calc(12.5px*var(--ui))}
.evid-label{font-family:var(--font-data);font-size:calc(10.5px*var(--ui));letter-spacing:.12em;text-transform:uppercase;color:var(--muted)}
.evid-pips{display:inline-flex;gap:3px}
.evid-pips i{width:18px;height:7px;border-radius:2px;background:rgba(255,255,255,.14)}
.evid-pips i.on.l1{background:#b779ff}.evid-pips i.on.l2{background:#ff9d57}.evid-pips i.on.l3{background:#ffd34d}
.evid-pips i.on.l4{background:#7fe0a2}.evid-pips i.on.l5{background:#5fd0ff}
.evid-text{margin:0 0 10px;color:var(--muted);font-size:calc(12.5px*var(--ui))}
.sources{margin:0;padding-left:18px;font-size:calc(12.5px*var(--ui));color:var(--muted)}
.sources li{margin:3px 0}.sources a{color:var(--cold);text-decoration:none;border-bottom:1px solid rgba(120,200,255,.35)}

/* ---------- phones and small tablets ---------- */
@media (max-width:760px){
  body{--ladder-w:0px}
  #ladder{width:min(300px,86vw);z-index:30;box-shadow:12px 0 40px rgba(0,0,0,.6);background:rgba(3,4,10,.98)}
  #ladder-show{display:block;top:auto;bottom:calc(env(safe-area-inset-bottom,0px) + 168px);z-index:12}
  #topbar{padding:10px 12px 18px;gap:8px;flex-wrap:wrap}
  #topbar .kicker{display:none}
  #lvl-title{font-size:calc(17px*var(--ui))!important;line-height:1.15}
  #topbar>.tools{max-width:100%;width:100%;flex-wrap:nowrap;gap:6px;justify-content:flex-start;overflow-x:auto;scrollbar-width:none;padding-bottom:2px}
  #topbar>.tools::-webkit-scrollbar{display:none}
  #lvl-tools{flex-wrap:nowrap;gap:6px}
  .tools .tbtn,#lvl-tools .tbtn{white-space:nowrap;flex:0 0 auto}
  .h-tick span{display:none!important}.h-tick.on span{display:block!important;position:absolute;left:50%;transform:translateX(-50%);white-space:nowrap;background:var(--panel);padding:1px 6px;border-radius:6px}
  .tbtn{padding:5px 10px;font-size:calc(12px*var(--ui))}
  #btn-full,#btn-info{display:none}
  #scalebar{display:none}
  #bottombar{padding:20px 10px calc(env(safe-area-inset-bottom,0px) + 10px)}
  #timebar{gap:8px;padding:8px 10px;width:100%;justify-content:space-between}
  .tb-clock{min-width:0!important}.tb-rate{min-width:0!important}.tb-rate .eyebrow{display:none}
  #t-main{font-size:calc(15px*var(--ui))!important}
  #drawer{left:8px;right:8px;width:auto;top:auto;bottom:calc(env(safe-area-inset-bottom,0px) + 8px);max-height:52vh;z-index:25}
  .h-readout{width:auto;right:12px;left:12px;top:calc(var(--top-h) + 4px);padding:8px 10px}
  .h-readout .h-rows,.h-readout dl{display:none}
  .h-rail{left:10px;right:10px;bottom:calc(env(safe-area-inset-bottom,0px) + 6px)}
  .h-tour{left:50%;transform:translateX(-50%);top:auto;bottom:90px}
  .hint{bottom:150px;max-width:88vw;text-align:center}
  #toast{left:12px;right:12px;bottom:150px;max-width:none}
  .modal{width:calc(100vw - 24px)!important;max-height:calc(100vh - 24px);overflow:auto;padding:16px}
  .howto{grid-template-columns:1fr 1fr}
}

/* loading bar */
#loading .ld-bar{width:180px;height:3px;border-radius:3px;background:rgba(255,255,255,.12);overflow:hidden;margin-top:16px}
#loading .ld-bar i{display:block;height:100%;width:35%;background:var(--hot);border-radius:3px;animation:ldmove 1.3s ease-in-out infinite}
@keyframes ldmove{0%{transform:translateX(-100%)}100%{transform:translateX(320%)}}
@media (prefers-reduced-motion:reduce){#loading .ld-bar i{animation:none;width:100%}}

/* ---------- glow and brightness sliders ---------- */
.glowctl{display:flex;align-items:center;gap:10px;margin:0 2px 10px;font-family:var(--font-data);font-size:calc(10.5px*var(--ui));letter-spacing:.12em;text-transform:uppercase;color:var(--muted)}
.glowctl input{flex:1;min-width:0}
input[type=range]{-webkit-appearance:none;appearance:none;height:4px;border-radius:4px;background:rgba(255,255,255,.18);outline-offset:6px;cursor:pointer}
input[type=range]::-webkit-slider-thumb{-webkit-appearance:none;width:16px;height:16px;border-radius:50%;background:var(--hot);border:0}
input[type=range]::-moz-range-thumb{width:16px;height:16px;border-radius:50%;background:var(--hot);border:0}
.field input[type=range]{width:100%;margin-top:10px}