@font-face{font-family:"Newsreader";font-style:normal;font-weight:400 700;font-display:swap;src:url(fonts/newsreader-latin.woff2) format("woff2");unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+2000-206F,U+2074,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
@font-face{font-family:"Newsreader";font-style:normal;font-weight:400 700;font-display:swap;src:url(fonts/newsreader-latin-ext.woff2) format("woff2");unicode-range:U+0100-02BA,U+02BD-02C5,U+02C7-02CC,U+02CE-02D7,U+02DD-02FF,U+0304,U+0308,U+0329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF}
@font-face{font-family:"Newsreader";font-style:italic;font-weight:400;font-display:swap;src:url(fonts/newsreader-italic-400-latin.woff2) format("woff2");unicode-range:U+0000-00FF,U+2000-206F}
@font-face{font-family:"Newsreader";font-style:italic;font-weight:400;font-display:swap;src:url(fonts/newsreader-italic-400-latin-ext.woff2) format("woff2");unicode-range:U+0100-02BA,U+1E00-1E9F}
@font-face{font-family:"Atkinson";font-style:normal;font-weight:200 800;font-display:swap;src:url(fonts/AtkinsonHyperlegibleNext.woff2) format("woff2")}

:root{
  --bg:#f3ecdc;--bg2:#e9dfc8;--card:#fbf7ec;--ink:#1c1812;--ink2:#3d372b;--muted:#5b5444;
  --line:#cfc4a8;--line-soft:#ddd2b8;--accent:#7a4f00;--accent-ink:#fff;
  --bob:#2a2417;--plate:#ede3ca;--plate-ink:#2a2417;--plate-soft:#8d8167;--brass:#946400;--gain:#14624f;--loss:#a2392a;--gain-bg:#14624f1c;--loss-bg:#a2392a1c;
  --serif:"Newsreader",Georgia,"Times New Roman",serif;--sans:"Atkinson",system-ui,-apple-system,sans-serif;
  --bar:3rem;color-scheme:light
}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]){
  --bg:#0b0f14;--bg2:#121920;--card:#151d26;--ink:#ece6d6;--ink2:#cfc8b6;--muted:#a69f8c;
  --line:#2c3440;--line-soft:#222a35;--accent:#e0b04f;--accent-ink:#1b1200;
  --bob:#5b6676;--plate:#10171e;--plate-ink:#ece6d6;--plate-soft:#7d8793;--brass:#e0b04f;--gain:#5fcaa8;--loss:#f19079;--gain-bg:#5fcaa826;--loss-bg:#f1907926;color-scheme:dark}}
:root[data-theme="dark"]{
  --bg:#0b0f14;--bg2:#121920;--card:#151d26;--ink:#ece6d6;--ink2:#cfc8b6;--muted:#a69f8c;
  --line:#2c3440;--line-soft:#222a35;--accent:#e0b04f;--accent-ink:#1b1200;
  --bob:#5b6676;--plate:#10171e;--plate-ink:#ece6d6;--plate-soft:#7d8793;--brass:#e0b04f;--gain:#5fcaa8;--loss:#f19079;--gain-bg:#5fcaa826;--loss-bg:#f1907926;color-scheme:dark}

*{box-sizing:border-box}
[hidden]{display:none!important}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
body{margin:0;background:var(--bg);color:var(--ink);font:400 1.08rem/1.62 var(--serif);text-rendering:optimizeLegibility}
a{color:var(--accent);text-underline-offset:.15em}
a:hover{text-decoration-thickness:2px}
:focus-visible{outline:3px solid var(--accent);outline-offset:2px;border-radius:4px}
.skip{position:absolute;left:-999px;top:0;background:var(--card);padding:.5rem 1rem;z-index:60}
.skip:focus{left:8px;top:8px}
.vh{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
section{scroll-margin-top:calc(var(--bar) + 8px)}
h1,h2,h3{font-family:var(--serif);line-height:1.15;margin:0;text-wrap:balance}
button,select,input{font:inherit}
.num{font-variant-numeric:tabular-nums lining-nums}

/* top bar */
.topbar{position:sticky;top:0;z-index:40;height:var(--bar);display:flex;align-items:center;gap:.7rem;padding:0 max(16px,env(safe-area-inset-left));
  background:color-mix(in srgb,var(--bg) 92%,transparent);backdrop-filter:blur(8px);border-bottom:1px solid var(--line-soft);font:500 .9rem/1 var(--sans)}
.home{display:inline-flex;align-items:center;gap:.4rem;color:var(--ink);text-decoration:none;white-space:nowrap;font-weight:700}
.home-ico{color:var(--accent)}
.topnav{display:flex;gap:.9rem;overflow-x:auto;scrollbar-width:none;min-width:0;flex:0 1 auto}
.topnav::-webkit-scrollbar{display:none}
.topnav a{color:var(--ink2);text-decoration:none;white-space:nowrap;padding:.9rem .1rem}
.topnav a:hover{color:var(--accent)}
.spacer{flex:1}
.chip{display:inline-flex;align-items:center;min-height:32px;padding:0 .7rem;border:1px solid var(--line);border-radius:999px;color:var(--ink);text-decoration:none;font-weight:600}
.icon-btn{width:34px;height:34px;display:inline-grid;place-items:center;border:1px solid var(--line);border-radius:999px;background:transparent;color:var(--ink);cursor:pointer}
.progress{position:absolute;left:0;right:0;bottom:-1px;height:2px;pointer-events:none}
.progress span{display:block;height:100%;width:100%;transform-origin:left;transform:scaleX(0);background:var(--accent)}
@media (max-width:760px){.topnav{display:none}}
@media (pointer:coarse){.chip,.icon-btn{min-height:44px;min-width:44px}.icon-btn{width:44px;height:44px}}

main{display:block}
.s{max-width:46rem;margin:0 auto;padding:3.4rem 16px 0}
.s.wide{max-width:60rem}
.s h2{font-size:clamp(1.55rem,4.4vw,2.1rem);margin-bottom:1rem}
.s h2 .anchor{color:inherit;text-decoration:none}
.s h2 .anchor:hover{text-decoration:underline}
.s h3{font-size:1.2rem;margin:1.6rem 0 .5rem}
.s p{margin:.85rem 0}
.lede{font-size:1.15rem;color:var(--ink2)}
.note{font:400 .88rem/1.45 var(--sans);color:var(--muted)}
.status{font:500 .95rem/1.4 var(--sans);color:var(--ink2);min-height:1.4em;margin:.5rem 0}
blockquote{margin:1.2rem 0;padding:.2rem 0 .2rem 1rem;border-left:3px solid var(--brass);color:var(--ink2);font-style:italic}
blockquote cite{display:block;font:400 .86rem/1.4 var(--sans);font-style:normal;color:var(--muted);margin-top:.3rem}
.tag{display:inline-block;font:700 .72rem/1 var(--sans);letter-spacing:.04em;text-transform:uppercase;padding:.28rem .45rem;border-radius:4px;border:1px solid var(--line);color:var(--ink2);white-space:nowrap}
.tag.rec{color:var(--gain);border-color:var(--gain)}
.tag.rep{color:var(--accent);border-color:var(--accent)}
.tag.dis{color:var(--loss);border-color:var(--loss)}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:.5rem;min-height:44px;padding:0 1rem;border:1px solid var(--accent);border-radius:999px;background:var(--accent);color:var(--accent-ink);font:700 .95rem/1 var(--sans);cursor:pointer}
.btn.ghost{background:transparent;color:var(--accent)}
.btn.small{min-height:40px;padding:0 .85rem;font-size:.9rem}
.btn:hover{filter:brightness(1.08)}
.btn .ic-pause{display:none}
.btn[data-on="true"] .ic-play{display:none}
.btn[data-on="true"] .ic-pause{display:inline}
.seg{display:flex;flex-wrap:wrap;gap:.4rem}
.seg button,.try{min-height:40px;padding:0 .8rem;border:1px solid var(--line);border-radius:999px;background:transparent;color:var(--ink);font:600 .86rem/1.1 var(--sans);cursor:pointer;text-align:left}
.seg button[aria-pressed="true"],.try[aria-pressed="true"]{border-color:var(--accent);background:color-mix(in srgb,var(--accent) 16%,transparent);color:var(--ink)}
@media (pointer:coarse){.seg button,.try{min-height:44px}.btn.small{min-height:44px}}

/* hero */
.hero{max-width:66rem;margin:0 auto;padding:1.4rem 16px 0;display:grid;gap:.4rem 2.4rem;grid-template-columns:minmax(0,1fr) minmax(260px,20rem);grid-template-areas:"head plate" "side plate";align-items:start}
.head{grid-area:head}
.kicker{font:700 .78rem/1.2 var(--sans);letter-spacing:.09em;text-transform:uppercase;color:var(--accent);margin:0 0 .5rem}
.hero h1{font-size:clamp(1.6rem,5vw,2.6rem);letter-spacing:-.01em}
.deck{font-size:1.14rem;color:var(--ink2);margin:.8rem 0 .4rem}
.nowline{font:500 .95rem/1.45 var(--sans);color:var(--ink2);margin:.5rem 0 0}
.nowline b{color:var(--ink);font-family:var(--serif);font-size:1.05em}
.side{grid-area:side}
.plate{grid-area:plate;position:relative;background:var(--plate);border:1px solid var(--line);border-radius:10px;padding:.4rem .2rem .2rem;user-select:none;-webkit-user-select:none}
.plate svg{display:block;margin:0 auto;width:auto;max-width:100%;height:min(80vh,640px)}
.plate .hint{position:absolute;left:0;right:0;bottom:.35rem;text-align:center;font:500 .72rem/1.2 var(--sans);color:var(--plate-soft);pointer-events:none}
.read{display:grid;grid-template-columns:auto 1fr;gap:0 .8rem;align-items:baseline;margin:.6rem 0 .2rem;padding:.7rem .9rem;border:1px solid var(--line);border-radius:10px;background:var(--card)}
.read .big{font:700 clamp(2.2rem,8vw,3.2rem)/1 var(--serif);margin:0;font-variant-numeric:tabular-nums lining-nums}
.read .big.gain{color:var(--gain)}.read .big.loss{color:var(--loss)}.read .big.zero{color:var(--ink2)}
.read .unit{font:600 .98rem/1.25 var(--sans);margin:0;color:var(--ink)}
.read .sub{grid-column:1/-1;font:400 .95rem/1.45 var(--sans);color:var(--ink2);margin:.45rem 0 0}
.zonebar{margin:.5rem 0 0;font:600 .9rem/1.35 var(--sans);padding:.45rem .7rem;border-radius:8px;border:1px solid var(--line)}
.zonebar.fast{background:var(--gain-bg);border-color:var(--gain);color:var(--ink)}
.zonebar.slow{background:var(--loss-bg);border-color:var(--loss);color:var(--ink)}
.zonebar.none{background:transparent;color:var(--ink2)}
.curve{margin:.6rem 0 0}
.curve svg{width:100%;height:auto;display:block;border:1px solid var(--line);border-radius:8px;background:var(--card)}
.curve figcaption{font:400 .84rem/1.4 var(--sans);color:var(--muted);margin-top:.3rem}
.ctlrow{display:flex;flex-wrap:wrap;gap:.5rem .9rem;align-items:center;margin:.7rem 0 0}
.lab{font:700 .78rem/1.2 var(--sans);letter-spacing:.05em;text-transform:uppercase;color:var(--muted)}
.stepper{display:inline-flex;align-items:center;border:1px solid var(--line);border-radius:999px;overflow:hidden;background:var(--card)}
.stepper button{width:44px;height:44px;border:0;background:transparent;color:var(--ink);font:700 1.2rem/1 var(--sans);cursor:pointer}
.stepper button:disabled{opacity:.35;cursor:default}
.stepper output{min-width:2.2rem;text-align:center;font:700 1rem/1 var(--sans)}
.hero .reset{margin-top:.6rem}
@media (max-width:760px){
  .plate svg{height:auto;width:100%}
  .hero{grid-template-columns:150px minmax(0,1fr);grid-template-areas:"head head" "plate side";gap:.6rem 1rem;padding-top:1rem}
  .deck{font-size:1.02rem}
  .read{grid-template-columns:1fr;padding:.55rem .7rem}
  .read .big{font-size:2.1rem}
  .read .sub{font-size:.88rem}
  .plate .hint{position:static;padding:.1rem .3rem .3rem;font-size:.68rem}
  #pend .sv-soft{font-size:14px}
  #pend .sv-txt{font-size:15px}
  #pend .sv-fast-t{font-size:19px}
  #pend .sv-slow-t{font-size:16px}
  #pend .sv-hint{font-size:16px}
  .presets .seg{flex-direction:column}
  .seg button{width:100%}
}

/* the stage drawing */
.sv-rod{stroke:var(--plate-ink)}
.sv-fast{fill:var(--gain-bg)}.sv-slow{fill:var(--loss-bg)}
.sv-fast-t{fill:var(--gain)}.sv-slow-t{fill:var(--loss)}
.sv-txt{fill:var(--plate-ink);font:700 12px var(--serif)}
.sv-soft{fill:var(--plate-ink);opacity:.72;font:500 11px var(--serif)}
.sv-hint{fill:var(--accent);font-family:var(--sans);font-weight:700;pointer-events:none}
.plate.touched .sv-hint{display:none}
.centre-note{margin:.5rem 0 0}
.sv-tick{stroke:var(--plate-soft);stroke-width:1}
.sv-coin{fill:var(--brass);stroke:var(--plate-ink);stroke-width:1.2}
.sv-coin-hi{fill:none;stroke:var(--plate);stroke-width:1;opacity:.55}
.sv-bob{fill:var(--bob)}
.sv-bob-hi{fill:var(--plate);opacity:.28}
.sv-centre{stroke:var(--brass);stroke-width:1.2;stroke-dasharray:4 3}
#coin{cursor:grab;touch-action:none}
#coin:active{cursor:grabbing}
#coin:focus-visible{outline:none}
#coin:focus-visible .sv-ring{stroke:var(--accent);stroke-width:2.5}
.sv-ring{fill:none;stroke:transparent}
.sv-pulse{fill:none;stroke:var(--accent);stroke-width:1.5;opacity:.7;transform-box:fill-box;transform-origin:center;animation:pulse 2.2s ease-out infinite}
@keyframes pulse{0%{transform:scale(.7);opacity:.8}100%{transform:scale(1.9);opacity:0}}
.plate.touched .sv-pulse{display:none}
@media (prefers-reduced-motion:reduce){.sv-pulse{animation:none;opacity:.5}}

/* sections */
.days{display:grid;gap:.9rem}
.gauge{border:1px solid var(--line);border-radius:10px;background:var(--card);padding:.7rem .8rem}
.gauge svg{width:100%;height:auto;display:block}
.daybar{display:flex;flex-wrap:wrap;gap:.6rem 1rem;align-items:center}
.daybar output{font:700 1rem/1.2 var(--sans)}
.dayout{font:500 1rem/1.5 var(--sans);color:var(--ink2);margin:.2rem 0}
.dayout b{color:var(--ink)}
.range{width:100%;accent-color:var(--accent);min-height:44px}
.tablewrap{overflow-x:auto;border:1px solid var(--line);border-radius:8px}
table{border-collapse:collapse;width:100%;font:400 .94rem/1.4 var(--sans)}
th,td{padding:.5rem .7rem;text-align:left;border-bottom:1px solid var(--line-soft);vertical-align:top}
th{font-weight:700;background:var(--bg2)}
td.n,th.n{text-align:right;font-variant-numeric:tabular-nums lining-nums}
tr:last-child td{border-bottom:0}
.tl{list-style:none;margin:1rem 0;padding:0;border-left:2px solid var(--line)}
.tl li{position:relative;padding:0 0 1.15rem 1.2rem;margin:0}
.tl li::before{content:"";position:absolute;left:-6px;top:.5rem;width:10px;height:10px;border-radius:50%;background:var(--bg);border:2px solid var(--brass)}
.tl .yr{font:700 1rem/1.3 var(--sans);color:var(--ink)}
.tl p{margin:.2rem 0}
.two{display:grid;gap:.8rem;grid-template-columns:1fr 1fr}
.two>div{border:1px solid var(--line);border-radius:8px;padding:.6rem .8rem;background:var(--card);font:400 .94rem/1.45 var(--sans)}
@media (max-width:620px){.two{grid-template-columns:1fr}}
.scale{border:1px solid var(--line);border-radius:10px;background:var(--plate);padding:.5rem}
.scale svg{display:block;width:100%;height:auto}
@media (max-width:760px){#gsvg .gtick,#gsvg .gcap{font-size:19px}#gsvg #gval{font-size:26px}}
.model{border:1px solid var(--line);border-radius:10px;background:var(--card);padding:.2rem 1rem .6rem;margin:1.2rem 0}
.model h3{margin-top:.8rem}
.eq{font:600 1.05rem/1.5 var(--serif);font-style:italic;text-align:center;margin:.8rem 0;color:var(--ink)}
.card-wrap{display:grid;gap:.8rem;justify-items:start}
.card-wrap canvas{width:100%;max-width:340px;height:auto;border:1px solid var(--line);border-radius:10px;background:var(--plate)}
.share-row{display:flex;flex-wrap:wrap;align-items:center;gap:.5rem;max-width:46rem;margin:3rem auto 0;padding:0 16px}
.share-label{font:500 .9rem/1 var(--sans);color:var(--muted);margin-right:.3rem}
.sh{width:40px;height:40px;display:inline-grid;place-items:center;border:1px solid var(--line-soft);border-radius:999px;background:transparent;color:var(--ink);cursor:pointer;text-decoration:none}
.sh:hover,.sh:focus-visible{color:var(--accent);border-color:var(--accent)}
@media (pointer:coarse){.sh{width:44px;height:44px}}
.copied{flex-basis:100%;font:500 .86rem/1.3 var(--sans);color:var(--ink2);min-height:1.2em;margin:0}
.src{font:400 .93rem/1.5 var(--sans)}
.src li{margin:.45rem 0}
.foot{max-width:46rem;margin:3rem auto 0;padding:1.4rem 16px 3rem;border-top:1px solid var(--line-soft);font:400 .9rem/1.5 var(--sans);color:var(--muted)}
.foot p{margin:.3rem 0}
#totop{position:fixed;right:max(14px,env(safe-area-inset-right));bottom:max(14px,env(safe-area-inset-bottom))}
.nf{display:grid;place-items:center;min-height:100vh;text-align:center;padding:1rem}

.figrow{display:flex;flex-wrap:wrap;gap:1rem;align-items:flex-start;margin:1.4rem 0}
.fig{margin:0;flex:1 1 20rem;min-width:0}
.fig.narrow{flex:0 1 11rem}
.fig img{display:block;width:100%;height:auto;border:1px solid var(--line);border-radius:8px;background:var(--plate)}
.fig figcaption{font:400 .86rem/1.45 var(--sans);color:var(--muted);margin-top:.4rem}
.s.wide p{max-width:46rem;margin-left:auto;margin-right:auto}
.sel{min-height:44px;max-width:100%;padding:0 .7rem;border:1px solid var(--line);border-radius:8px;background:var(--card);color:var(--ink);font:500 .92rem/1.2 var(--sans)}
.days,.daybar,.gauge{min-width:0}
.daybar .sel{width:100%;max-width:26rem}