/* BCI Paradigm Atlas one-page site. Data: story-data.json (scripts/build_website_story.py). */
/* Layout: a dense, playful "lab notebook" — every band pairs a short story line with a toy you can poke; no empty bands. */
:root{
  --bg:#F4F5FB; --ink:#1A1F3D; --muted:#646B90; --card:#FFFFFF; --line:#E0E3F1; --soft:#EBEDF8; --deep:#1A1F3D; --on-deep:#F4F5FB;
  --pink:#FF5C92; --sun:#FFC23D; --mint:#28C99C; --sky:#4A9BFF; --grape:#8D70FF;
  --gA:#28C99C; --gB:#4A9BFF; --gC:#FFAE1F;
  --on-accent:#1A1F3D;
  --f-display:"Fredoka","Noto Sans SC",ui-rounded,system-ui,sans-serif;
  --f-body:"Nunito","Noto Sans SC",system-ui,-apple-system,"PingFang SC","Microsoft YaHei",sans-serif;
  --f-mono:"JetBrains Mono",ui-monospace,Menlo,Consolas,monospace;
}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]){
  --bg:#10132A; --ink:#EDEFFB; --muted:#A1A7C9; --card:#191D39; --line:#2A2F57; --soft:#1F2448; --deep:#0A0C1E; --on-deep:#EDEFFB;
  --pink:#FF77A6; --sun:#FFCF5C; --mint:#43DCB0; --sky:#6CAFFF; --grape:#A48DFF;
  --gA:#43DCB0; --gB:#6CAFFF; --gC:#FFC14D; --on-accent:#10132A; color-scheme:dark}}
:root[data-theme="dark"]{
  --bg:#10132A; --ink:#EDEFFB; --muted:#A1A7C9; --card:#191D39; --line:#2A2F57; --soft:#1F2448; --deep:#0A0C1E; --on-deep:#EDEFFB;
  --pink:#FF77A6; --sun:#FFCF5C; --mint:#43DCB0; --sky:#6CAFFF; --grape:#A48DFF;
  --gA:#43DCB0; --gB:#6CAFFF; --gC:#FFC14D; --on-accent:#10132A; color-scheme:dark}

*{box-sizing:border-box}
[hidden]{display:none!important}
body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--f-body);font-size:16px;line-height:1.6;
  padding-left:max(16px,env(safe-area-inset-left,0px));padding-right:max(16px,env(safe-area-inset-right,0px));-webkit-font-smoothing:antialiased;overflow-x:hidden}
.wrap{max-width:1160px;margin:0 auto}
h1,h2,h3{font-family:var(--f-display);font-weight:600;line-height:1.12;text-wrap:balance;margin:0}
p{margin:0}
a{color:inherit}
button,select{font:inherit;color:inherit}
:focus-visible{outline:3px solid var(--sky);outline-offset:2px;border-radius:10px}
.mono{font-family:var(--f-mono);font-size:.8em}
.nw{white-space:nowrap}

/* header */
.bar{position:sticky;top:env(safe-area-inset-top,0px);z-index:30;display:flex;align-items:center;justify-content:space-between;gap:12px;padding-block:12px;
  background:color-mix(in srgb,var(--bg) 85%,transparent);backdrop-filter:blur(12px)}
.brand{display:flex;align-items:center;gap:14px;text-decoration:none;min-width:0}
.logo-svg{height:30px;width:auto;color:var(--ink);flex:none}
.brand .sep{width:2px;height:24px;background:var(--line);border-radius:2px}
.brand b{font-family:var(--f-display);font-weight:600;font-size:17px;white-space:nowrap}
.bar-r{display:flex;gap:8px}
.pill{border:2px solid var(--line);background:var(--card);border-radius:999px;padding:5px 13px;font-weight:800;font-size:13px;cursor:pointer;text-decoration:none;white-space:nowrap}
.pill:hover{border-color:var(--ink)}

/* hero */
.hero{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.05fr);gap:28px;align-items:center;padding-block:24px 20px}
.hero-l{display:grid;gap:18px;min-width:0}
.tag{justify-self:start;display:inline-flex;gap:8px;align-items:center;background:var(--card);border:2px solid var(--line);border-radius:999px;padding:4px 12px 4px 6px;font-weight:800;font-size:13px}
.tag i{width:20px;height:20px;border-radius:50%;background:var(--mint);display:inline-grid;place-items:center;font-style:normal;font-size:11px;color:var(--on-accent)}
.hero h1{font-size:clamp(38px,5.6vw,72px);font-weight:700}
.hero h1 .num{color:var(--pink)}
.hl{background:linear-gradient(transparent 60%,color-mix(in srgb,var(--sun) 75%,transparent) 60%)}
.lede{font-size:clamp(16px,1.6vw,19px);color:var(--muted);max-width:52ch}
.mini{display:flex;flex-wrap:wrap;gap:8px}
.mini span{background:var(--card);border:2px solid var(--line);border-radius:14px;padding:6px 12px;font-weight:700;font-size:14px;color:var(--muted)}
.mini b{font-family:var(--f-display);font-weight:600;color:var(--ink);font-size:20px;margin-right:4px;font-variant-numeric:tabular-nums}
.acts{display:flex;flex-wrap:wrap;gap:10px}
.btn{border:0;cursor:pointer;background:var(--pink);color:var(--on-accent);font-weight:800;border-radius:999px;padding:11px 20px;font-size:15px;text-decoration:none;display:inline-flex;align-items:center;gap:8px;
  box-shadow:0 4px 0 color-mix(in srgb,var(--pink) 55%,#000);transition:transform .08s}
.btn:active{transform:translateY(3px);box-shadow:0 1px 0 color-mix(in srgb,var(--pink) 55%,#000)}
.btn.alt{background:var(--card);border:2px solid var(--line);box-shadow:none;color:var(--ink)}
.btn.sm{padding:7px 14px;font-size:14px}
.stage{position:relative;border-radius:30px;background:var(--deep);aspect-ratio:1.18/1;overflow:hidden;max-width:100%}
.stage canvas{position:absolute;inset:0;width:100%;height:100%;touch-action:none;cursor:crosshair}
.stage .hint{position:absolute;left:16px;bottom:14px;color:var(--on-deep);opacity:.8;font-weight:800;font-size:13px;pointer-events:none}
.stage .lobes{position:absolute;right:14px;top:14px;display:flex;flex-direction:column;gap:5px;align-items:flex-end;pointer-events:none}
.stage .lobes span{font-size:12px;font-weight:800;color:var(--on-deep);opacity:.85;display:flex;gap:6px;align-items:center}
.stage .lobes i{width:9px;height:9px;border-radius:50%}

/* bands */
.band{padding-block:34px;display:grid;grid-template-columns:minmax(0,1fr);gap:18px}
.band>*{min-width:0}
.bh{display:flex;flex-wrap:wrap;align-items:end;justify-content:space-between;gap:10px 24px}
.bh .t{display:grid;gap:6px;max-width:720px}
.lvl{display:flex;gap:8px;align-items:center;font-weight:800;font-size:13px;letter-spacing:.08em;text-transform:uppercase;color:var(--muted)}
.lvl b{width:26px;height:26px;border-radius:9px;display:inline-grid;place-items:center;color:var(--on-accent);font-family:var(--f-display);font-size:14px;letter-spacing:0}
.band h2{font-size:clamp(26px,3.4vw,40px)}
.bh p{color:var(--muted)}
.card{background:var(--card);border:2px solid var(--line);border-radius:26px;padding:clamp(14px,2.2vw,24px)}

/* tabs */
.tabs{display:flex;flex-wrap:wrap;gap:6px;background:var(--soft);border-radius:999px;padding:5px}
.tab{border:0;background:transparent;border-radius:999px;padding:7px 14px;font-weight:800;font-size:14px;cursor:pointer;color:var(--muted)}
.tab[aria-selected="true"]{background:var(--card);color:var(--ink);box-shadow:0 2px 0 var(--line)}

/* games */
.game{display:grid;grid-template-columns:minmax(0,.9fr) minmax(0,1.1fr);gap:18px;align-items:stretch}
.game>*{min-width:0}
.screen{position:relative;border-radius:20px;background:var(--soft);min-height:300px;display:grid;place-items:center;overflow:hidden;user-select:none;-webkit-user-select:none;touch-action:manipulation}
.screen.clickable{cursor:pointer}
.hud{position:absolute;top:10px;left:10px;right:10px;display:flex;justify-content:space-between;gap:8px;flex-wrap:wrap;pointer-events:none}
.hud span{background:var(--card);border-radius:999px;padding:3px 11px;font-weight:800;font-size:13px}
.blob{width:118px;height:118px;border-radius:50%;background:var(--sky);display:grid;place-items:center;box-shadow:inset -10px -12px 0 rgba(0,0,0,.09);transition:transform .1s}
.blob.t{background:var(--pink)} .blob.pop{transform:scale(1.14)} .blob.hit{box-shadow:0 0 0 10px color-mix(in srgb,var(--mint) 60%,transparent)}
.blob .face{display:flex;gap:16px;margin-top:-8px}
.blob .face i{width:10px;height:14px;border-radius:6px;background:var(--on-accent)}
.blob .mouth{width:22px;height:10px;border:3px solid var(--on-accent);border-top:0;border-radius:0 0 14px 14px;margin:6px auto 0}
.cta-over{position:absolute;bottom:12px;left:0;right:0;text-align:center;font-weight:800;font-size:14px;color:var(--muted);pointer-events:none}
.side{display:grid;gap:10px;align-content:start}
.side svg{width:100%;height:auto;display:block}
.row{display:flex;flex-wrap:wrap;gap:10px;align-items:center}
.legend{display:flex;gap:12px;flex-wrap:wrap;font-size:13px;color:var(--muted);font-weight:800}
.legend span{display:inline-flex;gap:6px;align-items:center}
.legend i{width:16px;height:4px;border-radius:2px}
.note{font-size:14px;color:var(--muted)}
.score{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:8px}
.score div{background:var(--soft);border-radius:14px;padding:8px 10px;display:grid}
.score b{font-family:var(--f-display);font-weight:600;font-size:22px;font-variant-numeric:tabular-nums;line-height:1.1}
.score span{font-size:12px;color:var(--muted);font-weight:800}
/* ssvep */
.tiles{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;width:100%;padding:52px 14px 44px}
.tile{aspect-ratio:1;border-radius:20px;border:0;cursor:pointer;display:grid;place-items:center;font-family:var(--f-display);font-weight:700;font-size:clamp(28px,5vw,44px);color:var(--on-accent);position:relative;overflow:hidden}
.tile small{position:absolute;bottom:8px;font-family:var(--f-mono);font-size:11px;font-weight:500;opacity:.8}
.tile .fill{position:absolute;left:0;bottom:0;height:0;width:100%;background:rgba(255,255,255,.35)}
.typed{position:absolute;top:10px;left:10px;right:10px;display:flex;gap:6px;align-items:center;font-family:var(--f-display);font-size:20px;font-weight:600;background:var(--card);border-radius:14px;padding:4px 12px;min-height:38px}
.typed .caret{width:2px;height:22px;background:var(--pink);animation:blink 1s steps(1) infinite}
@keyframes blink{50%{opacity:0}}
/* MI */
.mi{width:100%;display:grid;gap:10px;padding:46px 14px 14px}
.track{position:relative;height:64px;border-radius:999px;background:var(--card);border:2px solid var(--line)}
.track .goal{position:absolute;top:6px;bottom:6px;width:46px;border-radius:999px;display:grid;place-items:center;font-weight:800;font-size:12px}
.track .goal.l{left:6px;background:color-mix(in srgb,var(--sky) 35%,transparent)} .track .goal.r{right:6px;background:color-mix(in srgb,var(--pink) 35%,transparent)}
.ball{position:absolute;top:10px;width:40px;height:40px;border-radius:50%;background:var(--sun);left:calc(50% - 20px);transition:left .08s linear;box-shadow:inset -5px -6px 0 rgba(0,0,0,.1)}
.hands{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.hand{border:2px solid var(--line);background:var(--card);border-radius:18px;padding:12px;font-weight:800;cursor:pointer;display:grid;gap:2px;justify-items:center;touch-action:none;user-select:none;-webkit-user-select:none}
.hand.on{border-color:var(--ink);background:var(--sun);color:var(--on-accent)}
.hand big{font-size:30px;line-height:1}

/* network */
.net{display:grid;grid-template-columns:minmax(0,1.45fr) minmax(0,1fr);gap:18px;align-items:start}
.net>*{min-width:0}
.netbox{position:relative}
#netsvg{width:100%;height:auto;display:block}
#netsvg .e{fill:none;stroke-width:1;opacity:.12;transition:opacity .2s}
#netsvg .e.on{opacity:.95;stroke-width:2.2}
#netsvg .n{cursor:pointer}
#netsvg .n circle{stroke:var(--card);stroke-width:1.5;transition:r .15s}
#netsvg .n text{font-size:9.5px;font-weight:700;fill:var(--muted);opacity:.55;transition:fill .2s}
#netsvg .arc{fill:none;stroke-width:10;stroke-linecap:round;opacity:.22}
#netsvg .n.on text{fill:var(--ink);font-weight:800;opacity:1;font-size:11px}
#netsvg .n.dim{opacity:.35}
#netsvg .ring{fill:none;stroke:var(--line);stroke-width:1.5;stroke-dasharray:2 5}
#netsvg .cap{font-family:var(--f-display);font-size:15px;font-weight:600;fill:var(--muted)}
.filters{display:flex;flex-wrap:wrap;gap:8px;align-items:center}
.gbtn{border:2px solid var(--line);background:var(--card);border-radius:999px;padding:4px 12px 4px 5px;display:inline-flex;gap:6px;align-items:center;font-weight:800;font-size:13px;cursor:pointer}
.gbtn[aria-pressed="false"]{opacity:.45}
.g{flex:none;display:inline-grid;place-items:center;width:24px;height:24px;border-radius:8px;font-family:var(--f-display);font-weight:600;font-size:14px;color:var(--on-accent)}
.g.A{background:var(--gA)} .g.B{background:var(--gB)} .g.C{background:var(--gC)}
select.sel{border:2px solid var(--line);background:var(--card);border-radius:999px;padding:5px 12px;font-weight:800;font-size:13px;max-width:100%;min-width:0}
.detail{display:grid;gap:12px}
.dhead{border-radius:20px;padding:16px;display:grid;gap:4px;color:var(--on-accent)}
.dhead .k{font-weight:800;font-size:12px;letter-spacing:.06em;text-transform:uppercase;opacity:.75}
.dhead b{font-family:var(--f-display);font-weight:600;font-size:26px;line-height:1.1}
.dhead svg{width:100%;height:38px}
.dhead svg path{fill:none;stroke:var(--on-accent);stroke-width:3;stroke-linecap:round;stroke-linejoin:round}
.sub{font-size:12px;font-weight:800;letter-spacing:.06em;text-transform:uppercase;color:var(--muted)}
.links{display:grid;gap:6px}
.lk{display:grid;grid-template-columns:auto minmax(0,1fr);gap:4px 10px;align-items:center;background:var(--soft);border-radius:14px;padding:8px 10px}
.lk b{font-weight:800;font-size:14px;line-height:1.3;overflow-wrap:anywhere}
.lk a,.lk em{grid-column:2;font-size:12px;color:var(--muted);font-style:normal;text-decoration:none;font-weight:700;overflow-wrap:anywhere}
.lk a:hover{color:var(--ink);text-decoration:underline}
.chipset{display:flex;flex-wrap:wrap;gap:6px}
.chip{border:2px solid var(--line);background:var(--card);border-radius:999px;padding:3px 11px;font-weight:800;font-size:13px;cursor:pointer}
.chip:hover{border-color:var(--ink)}
.chip[aria-pressed="true"]{background:var(--ink);color:var(--bg);border-color:var(--ink)}
.evbar{display:flex;height:12px;border-radius:999px;overflow:hidden;gap:2px}
.evbar i{display:block}

/* dots */
.field{display:grid;grid-template-columns:minmax(0,1.3fr) minmax(0,1fr);gap:18px;align-items:start}
.field>*{min-width:0}
.dots{display:flex;flex-wrap:wrap;gap:5px}
.dot{width:17px;height:17px;border-radius:50%;border:0;padding:0;cursor:pointer;transition:transform .15s,opacity .2s}
.dot:hover,.dot.on{transform:scale(1.45)}
.dot.on{box-shadow:0 0 0 3px var(--card),0 0 0 5px var(--ink)}
.dot.off{opacity:.15}
.fam-legend{display:flex;flex-wrap:wrap;gap:6px}
.fchip{border:2px solid var(--line);background:var(--card);border-radius:999px;padding:3px 10px 3px 4px;display:inline-flex;gap:6px;align-items:center;font-weight:800;font-size:12.5px;cursor:pointer}
.fchip i{width:16px;height:16px;border-radius:50%}
.fchip[aria-pressed="true"]{border-color:var(--ink)}
.pcard{border-radius:22px;padding:18px;display:grid;gap:10px;background:var(--soft)}
.pcard .fam{font-weight:800;font-size:12px;letter-spacing:.06em;text-transform:uppercase}
.pcard b{font-family:var(--f-display);font-weight:600;font-size:24px;line-height:1.15}
.stats{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:8px}
.stats div{background:var(--card);border:2px solid var(--line);border-radius:16px;padding:8px 12px;display:grid}
.stats b{font-family:var(--f-display);font-weight:600;font-size:26px;font-variant-numeric:tabular-nums;line-height:1.1}
.stats span{font-size:12px;color:var(--muted);font-weight:800}

/* factory */
.fpick{display:flex;flex-wrap:wrap;gap:8px;align-items:center}
.fpick .sub{margin-right:4px}
.pipe{display:grid;grid-template-columns:minmax(0,.85fr) 34px minmax(0,1fr) 34px minmax(0,1fr) 34px minmax(0,1.05fr);align-items:stretch}
.pipe>*{min-width:0}
.stn{background:var(--soft);border-radius:22px;padding:14px;display:grid;gap:10px;align-content:start;position:relative}
.stn.lit{animation:stn .55s cubic-bezier(.2,.8,.2,1) both}
@keyframes stn{0%{transform:translateY(10px) scale(.97);box-shadow:0 0 0 0 transparent}60%{box-shadow:0 0 0 4px color-mix(in srgb,var(--sun) 70%,transparent)}100%{transform:none;box-shadow:0 0 0 0 transparent}}
.stn .hd{display:flex;gap:8px;align-items:center;font-weight:800;font-size:13px;color:var(--muted)}
.stn .hd b{width:24px;height:24px;border-radius:8px;display:inline-grid;place-items:center;color:var(--on-accent);font-family:var(--f-display);font-size:13px}
.want{font-family:var(--f-display);font-weight:600;font-size:clamp(22px,2.4vw,30px);line-height:1.15}
.mbrain{width:100%;max-width:220px;height:auto}
.mbrain path{fill:var(--card);stroke:var(--line);stroke-width:2;transition:fill .4s}
.mbrain path.on{fill:var(--pink)}
.mbrain ellipse{fill:var(--card);stroke:var(--line);stroke-width:2;stroke-dasharray:4 3}
.mbrain ellipse.on{fill:var(--grape);stroke-dasharray:none}
.conn{position:relative;align-self:center;height:4px;margin-inline:4px;border-radius:2px;background:repeating-linear-gradient(90deg,var(--line) 0 6px,transparent 6px 11px)}
.conn::after{content:"";position:absolute;top:-4px;left:0;width:12px;height:12px;border-radius:50%;background:var(--pink);animation:run 1.6s linear infinite}
@keyframes runv{from{top:-6px}to{top:calc(100% - 6px)}}
@keyframes run{from{left:-6px}to{left:calc(100% - 6px)}}
.sc{display:grid;grid-template-columns:auto minmax(0,1fr);gap:2px 10px;align-items:center;background:var(--card);border-radius:14px;padding:8px 10px;border:2px solid transparent;cursor:pointer;text-align:left;width:100%}
.sc:hover{border-color:var(--ink)}
.sc b{font-weight:800;font-size:14px;line-height:1.25;overflow-wrap:anywhere}
.sc em{grid-column:2;font-style:normal;font-size:11.5px;color:var(--muted);font-weight:700;overflow-wrap:anywhere}
.sc svg{grid-row:span 2;width:34px;height:26px}
.sc svg path{fill:none;stroke:var(--ink);stroke-width:4;stroke-linecap:round;stroke-linejoin:round}
.pc{display:flex;gap:10px;align-items:flex-start;background:var(--card);border-radius:14px;padding:8px 10px}
.pc i{flex:none;width:12px;height:12px;border-radius:50%;margin-top:5px}
.pc b{display:block;font-weight:800;font-size:14px;line-height:1.3}
.pc .mono{color:var(--muted)}
.monitor{aspect-ratio:16/10;border-radius:16px;background:var(--deep);display:grid;place-items:center;position:relative;overflow:hidden}
.monitor .sym{font-family:var(--f-display);font-size:clamp(34px,4vw,52px);font-weight:600;color:var(--on-deep);transition:transform .2s}
.monitor .ph{position:absolute;left:10px;top:8px;font-size:12px;font-weight:800;color:var(--on-deep);opacity:.75}
.monitor .dur{position:absolute;right:10px;top:8px;font-size:12px;font-weight:800;color:var(--on-deep);opacity:.75;font-variant-numeric:tabular-nums}
.tl{position:relative;display:flex;gap:3px;height:30px;border-radius:10px;overflow:hidden}
.tl i{display:grid;place-items:center;font-style:normal;font-weight:800;font-size:11px;color:var(--on-accent);min-width:0;overflow:hidden;white-space:nowrap;opacity:.55;transition:opacity .2s}
.tl i.cur{opacity:1}
.tl .head{position:absolute;top:0;bottom:0;width:3px;background:var(--ink);border-radius:2px;left:0}
.tlnote{font-size:12px;color:var(--muted);font-weight:700}
.empty{color:var(--muted);font-weight:700;font-size:14px}
.end{display:flex;flex-wrap:wrap;gap:14px;align-items:center;justify-content:space-between;background:var(--sun);color:var(--on-accent);border-radius:26px;padding:20px 24px}
.end h3{font-size:clamp(20px,2.6vw,28px)}
.end .btn{background:var(--deep);color:var(--on-deep);box-shadow:none}
.foot{padding-block:22px 34px;display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;align-items:center;color:var(--muted);font-size:13px;font-weight:700}
.foot .logo-mini{height:22px;width:auto;color:var(--muted)}

@media (max-width:900px){
  .hero,.game,.net,.field{grid-template-columns:minmax(0,1fr)}
  .pipe{grid-template-columns:minmax(0,1fr);gap:0}
  .conn{width:4px;height:26px;justify-self:center;margin:4px 0;background:repeating-linear-gradient(180deg,var(--line) 0 6px,transparent 6px 11px)}
  .conn::after{left:-4px;animation:runv 1.6s linear infinite}
  .stage{aspect-ratio:1.5/1}
  .field>div:last-child{order:-1}
}
@media (max-width:520px){
  .brand .sep,.brand b{display:none}
  #netsvg .n text{display:none}
  .score b{font-size:18px}
}
@media (prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}}
.card>*,.bh>*{min-width:0;max-width:100%}
#gfil{display:flex;flex-wrap:wrap;gap:8px}
.fpick .chipset{min-width:0}
select.sel{width:auto}