@font-face{font-family:"Newsreader";font-style:normal;font-weight:200 800;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+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:200 800;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+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+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
@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+02BD-02C5,U+02C7-02CC,U+02CE-02D7,U+02DD-02FF,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:"Plex Mono";font-style:normal;font-weight:400;font-display:swap;src:url(fonts/IBMPlexMono-Regular.woff2) format("woff2")}

/* The skin scene stays warm and dim in both themes; the page around it follows the theme. */
:root{
  --bg:#f7f0ea;--bg-2:#efe4db;--card:#fffaf6;--ink:#1f1512;--ink-2:#4a3a35;--rule:#dccbc0;--rule-2:#8f7a70;
  --accent:#a3321f;--link:#8e2a18;--bar-bg:rgba(247,240,234,.88);
  --s-ink:#fbeee6;--s-ink-2:#e6c9bb;--s-acc:#ffb48a;--s-glass:rgba(30,12,10,.58);--s-rule:rgba(255,220,200,.18);
  --d-glass:rgba(255,250,246,.86);--d-ink:#241815;--d-ink-2:#57443d;--d-acc:#a3321f;
  --c-ct:#ffc98f;--c-ab:#9fd0ff;--c-pl:#f4b6c2;
  color-scheme:light;
}
:root[data-theme="dark"]{
  --bg:#110607;--bg-2:#1b0b0d;--card:#1f0e10;--ink:#f4e7e0;--ink-2:#d2bcb2;--rule:#3a2124;--rule-2:#8a6a64;
  --accent:#ff9d74;--link:#ffb899;--bar-bg:rgba(17,6,7,.86);color-scheme:dark;
}
@media (prefers-color-scheme:dark){
  :root:not([data-theme="light"]){
    --bg:#110607;--bg-2:#1b0b0d;--card:#1f0e10;--ink:#f4e7e0;--ink-2:#d2bcb2;--rule:#3a2124;--rule-2:#8a6a64;
    --accent:#ff9d74;--link:#ffb899;--bar-bg:rgba(17,6,7,.86);color-scheme:dark;
  }
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
body{margin:0;background:#1a0c0a;color:var(--ink);font:400 1.1875rem/1.62 "Newsreader",Georgia,serif;font-optical-sizing:auto}
a{color:var(--link);text-underline-offset:.18em;text-decoration-thickness:1px}
a:hover{text-decoration-thickness:2px}
:focus-visible{outline:3px solid var(--s-acc);outline-offset:3px;border-radius:4px}
b,strong{font-weight:640}
.skip{position:absolute;left:-999px;top:0;background:var(--card);color:var(--ink);padding:.5rem .8rem;z-index:99}
.skip:focus{left:.5rem;top:.5rem}
section[id],header[id]{scroll-margin-top:2.75rem}

/* ---- top bar ---- */
.topbar{position:sticky;top:0;z-index:40;display:flex;align-items:center;gap:.9rem;height:2.75rem;padding:0 1rem;background:var(--bar-bg);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);border-bottom:1px solid var(--rule);font-size:.9rem}
.topbar a{color:var(--ink);text-decoration:none}
.topbar .home{font-weight:600;white-space:nowrap}
.topnav{display:flex;gap:1rem;overflow-x:auto;scrollbar-width:none;min-width:0;flex:0 1 auto}
.topnav::-webkit-scrollbar{display:none}
.topnav a{white-space:nowrap;color:var(--ink-2)}
.topnav a:hover,.topnav a[aria-current="true"]{color:var(--ink);text-decoration:underline}
.spacer{flex:1 1 0}
.chip{border:1px solid var(--rule-2);border-radius:99px;padding:.1rem .6rem;font-size:.82rem;white-space:nowrap}
.icon-btn{display:inline-grid;place-items:center;width:2.75rem;height:2.75rem;margin-right:-.6rem;background:none;border:0;color:var(--ink);cursor:pointer;border-radius:50%}
.icon-btn svg[hidden]{display:none}
@media (max-width:720px){.topnav{display:none}.topbar{gap:.6rem}}

/* ---- reading rail (over the scene) ---- */
.rail{position:fixed;right:.9rem;top:50%;transform:translateY(-50%);z-index:30;display:flex;flex-direction:column;gap:.55rem}
.rail a{display:flex;align-items:center;justify-content:flex-end;gap:.5rem;text-decoration:none;color:var(--s-ink-2);font-size:.8rem;min-height:24px}
.rail a span{opacity:0;transform:translateX(6px);transition:opacity .2s,transform .2s;background:var(--s-glass);color:var(--s-ink);padding:.1rem .5rem;border-radius:4px;white-space:nowrap;backdrop-filter:blur(6px)}
.rail a:hover span,.rail a:focus-visible span{opacity:1;transform:none}
.rail i{width:8px;height:8px;border-radius:50%;border:1.5px solid var(--s-ink-2);flex:none;transition:background .2s,transform .2s}
.rail a[aria-current="true"] i{background:var(--s-acc);border-color:var(--s-acc);transform:scale(1.35)}
@media (max-width:900px){.rail{display:none}}

/* ---- the scene ---- */
.stage{position:fixed;inset:0;z-index:0;background:radial-gradient(ellipse at 32% 30%,#e3a58a 0%,#9a5646 34%,#3a1814 72%,#140806 100%)}
.stage canvas{display:block;width:100%;height:100%}
html.no-gl .stage{background:radial-gradient(ellipse at 32% 30%,#e3a58a 0%,#9a5646 34%,#3a1814 72%,#140806 100%)}
main,.foot{position:relative;z-index:1}

/* ---- opening ---- */
.hero::before{content:"";position:absolute;inset:0;z-index:-1;pointer-events:none;background:linear-gradient(90deg,rgba(26,10,8,.62) 0%,rgba(26,10,8,.38) 45%,rgba(26,10,8,0) 75%)}
.hero{position:relative;min-height:calc(100svh - 2.75rem);display:flex;flex-direction:column;justify-content:center;padding:3rem max(16px,8vw) 4rem;color:var(--s-ink);max-width:62rem}
.kicker{font:400 .8rem/1.2 "Plex Mono",ui-monospace,monospace;letter-spacing:.14em;text-transform:uppercase;color:var(--s-acc);margin:0 0 1.2rem}
.hero h1{font-weight:300;font-size:clamp(2.9rem,8.5vw,6.6rem);line-height:.98;letter-spacing:-.02em;margin:0 0 1.6rem;text-wrap:balance;text-shadow:0 2px 40px rgba(30,8,4,.5)}
.deck{font-size:clamp(1.15rem,2.2vw,1.45rem);line-height:1.5;max-width:36rem;margin:0 0 2rem;color:var(--s-ink)}
.go{display:flex;flex-wrap:wrap;gap:.8rem;align-items:center}
.btn{font:inherit;font-size:1rem;display:inline-flex;align-items:center;gap:.55rem;min-height:2.9rem;padding:.55rem 1.2rem;border-radius:99px;border:1px solid var(--s-rule);background:rgba(255,235,225,.08);color:var(--s-ink);cursor:pointer;transition:background .2s,transform .2s}
.btn:hover{background:rgba(255,235,225,.16)}
.btn.primary{background:#fbeee6;color:#3a0d0e;border-color:#fbeee6;font-weight:560}
.btn.primary:hover{background:#fff}
.fine{font-size:.92rem;color:var(--s-ink-2);max-width:32rem;margin:1.2rem 0 0}
.scroll-cue{margin:3rem 0 0;font-size:1.4rem;color:var(--s-ink-2);animation:cue 2.4s ease-in-out infinite}
@keyframes cue{50%{transform:translateY(6px);opacity:.5}}
@media (prefers-reduced-motion:reduce){.scroll-cue{animation:none}}
html:not(.js) .go,html:not(.js) .fine,html:not(.js) .scroll-cue{display:none}

/* ---- the story ---- */
.chapter{padding:0 max(16px,8vw)}
.ch{font-weight:300;font-size:clamp(2rem,5vw,3.4rem);line-height:1.05;letter-spacing:-.01em;color:var(--s-ink);max-width:40rem;margin:0;padding:30vh 0 6vh;text-wrap:balance;text-shadow:0 2px 30px rgba(30,8,4,.55)}
.ch a,.block h2 a{color:inherit;text-decoration:none}
.ch a:hover::after,.block h2 a:hover::after{content:" #";color:var(--s-acc);font-size:.6em}
.step{min-height:78vh;display:flex;align-items:center;padding:6vh 0}
.card{max-width:33rem;background:var(--s-glass);color:var(--s-ink);padding:1.5rem 1.7rem;border-radius:14px;backdrop-filter:blur(14px) saturate(1.1);-webkit-backdrop-filter:blur(14px) saturate(1.1);border:1px solid var(--s-rule);opacity:.4;transform:translateY(10px);transition:opacity .6s,transform .6s,background .8s,color .8s}
.step.on .card,html:not(.js) .card{opacity:1;transform:none}
.card p{margin:0 0 .9rem}.card p:last-child{margin-bottom:0}
.card .wk{font:400 .78rem/1 "Plex Mono",ui-monospace,monospace;letter-spacing:.12em;text-transform:uppercase;color:var(--s-acc);margin-bottom:1rem}
.card i{font-style:italic}
.coda{font-size:1.28rem;line-height:1.55}
.step.end{min-height:90vh}
@media (prefers-reduced-motion:reduce){.card{transition:none;transform:none}}

/* ---- week display and sound ---- */
.hud-unused{position:fixed;right:max(12px,1.2vw);bottom:max(12px,1.2vw);z-index:35;display:flex;align-items:center;gap:.5rem;padding:.3rem .35rem .3rem .9rem;border-radius:99px;background:var(--s-glass);color:var(--s-ink);border:1px solid var(--s-rule);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);font:400 .8rem/1 "Plex Mono",ui-monospace,monospace;letter-spacing:.08em;text-transform:uppercase;opacity:0;pointer-events:none;transition:opacity .4s}
.hud.show{opacity:1;pointer-events:auto}
.snd{display:inline-flex;align-items:center;gap:.4rem;min-height:2.3rem;padding:0 .8rem;border-radius:99px;border:0;background:rgba(255,235,225,.12);color:inherit;font:inherit;cursor:pointer}
.snd[aria-pressed="false"] .w{opacity:.2}
.snd.real[aria-pressed="true"]{background:#fbeee6;color:#3a0d0e}
html:not(.js) .hud{display:none}

/* ---- sources and footer (the page around the scene) ---- */
.block{position:relative;z-index:1;background:var(--bg);color:var(--ink);padding:4rem max(16px,8vw) 3rem;margin-top:10vh}
.block h2{font-weight:400;font-size:1.9rem;margin:0 0 1.2rem}
.method{max-width:44rem;color:var(--ink-2);font-size:1.02rem}
.srcs{padding-left:1.1rem;max-width:52rem;font-size:.95rem;color:var(--ink-2)}
.srcs li{margin:0 0 .45rem}
.srcs a{word-break:break-word}
.foot{background:var(--bg);color:var(--ink-2);padding:1.5rem max(16px,8vw) 3rem;border-top:1px solid var(--rule);font-size:.92rem}
.foot p{margin:.2rem 0}.foot a{color:var(--ink)}

/* ---- 404 ---- */
body.nf{background:var(--bg);min-height:100vh;display:grid;place-items:center;text-align:center}
body.nf h1{font-weight:300;font-size:2.4rem}

@media (max-width:640px){
  .hero{padding-top:2rem}
  .card{padding:1.2rem 1.25rem}
  .panel{padding:1.2rem 1.1rem}
  .lab-k{width:100%}
  .ch{padding-top:22vh}
  .step{min-height:70vh}
  #curve .tk{font-size:19px} #curve .ax{font-size:20px} #curve .lb{font-size:23px}
  .cries .lb{font-size:24px}
  .hud{font-size:.72rem;padding:.2rem .25rem .2rem .7rem}.snd{min-height:2.1rem}
}

/* ---- the forearm pad and its panel ---- */
.step.wide{display:block;min-height:auto;padding:8vh 0}
.panel{max-width:46rem;margin-bottom:4.5rem;background:rgba(26,11,9,.82);color:var(--s-ink);padding:1.6rem 1.7rem 1.4rem;border-radius:16px;border:1px solid var(--s-rule);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px)}
.panel h3{font-weight:420;font-size:1.55rem;line-height:1.2;margin:0 0 1rem}
.panel>p{margin:0 0 .9rem}
.panel .small{font-size:.95rem;color:var(--s-ink-2)}
.cal{border:1px solid var(--s-rule);border-radius:12px;padding:1rem 1.1rem;margin:0 0 1.2rem}
.cal summary{cursor:pointer;font-weight:560}
.cal-card{height:5.5rem;border:2px dashed var(--s-acc);border-radius:10px;margin:1rem 0 .7rem;display:grid;place-items:center;box-sizing:border-box;color:var(--s-ink-2);font-size:.9rem;text-align:center;padding:.5rem}
.cal input[type=range]{width:100%;accent-color:var(--s-acc);min-height:2.75rem}
.cal-row{display:flex;flex-wrap:wrap;gap:.6rem;align-items:center}
#cal-state{font-size:.92rem;color:var(--s-ink-2);margin:.5rem 0 0}
.pad{position:relative;height:clamp(13rem,44vh,20rem);border-radius:22px;overflow:hidden;touch-action:none;user-select:none;-webkit-user-select:none;cursor:grab;
  background:radial-gradient(ellipse at 70% 25%,#f3c7ae 0%,#d99a80 35%,#a8664f 70%,#6e3b2e 100%);box-shadow:inset 0 0 0 1px rgba(255,230,210,.25),inset 0 -30px 60px rgba(60,20,10,.35)}
.pad::before{content:"";position:absolute;inset:0;background:radial-gradient(ellipse at 30% 70%,rgba(90,40,25,.10),transparent 60%);pointer-events:none}
.pad.touching{cursor:grabbing}
.pad:focus-visible{outline:3px solid var(--s-acc);outline-offset:4px}
.pad svg{position:absolute;inset:0;width:100%;height:100%;pointer-events:none}
#trail{fill:none;stroke:rgba(255,245,235,.75);stroke-width:14;stroke-linecap:round;stroke-linejoin:round;filter:blur(3px)}
.pad-hint{position:absolute;left:0;right:0;bottom:1rem;text-align:center;color:#3a1b12;font-size:1rem;pointer-events:none;padding:0 1rem}
.pad.touching .pad-hint{opacity:0}
.readout{font:400 .95rem/1.4 "Plex Mono",ui-monospace,monospace;color:var(--s-acc);min-height:1.5em;margin:.9rem 0 .3rem}
.verdict{font-size:1.2rem;line-height:1.5;min-height:1.5em;margin:.2rem 0 .8rem}
.ctl{display:flex;flex-wrap:wrap;gap:.5rem;margin:.6rem 0 0}
.seg{font:inherit;font-size:.95rem;min-height:2.75rem;padding:.35rem .95rem;border-radius:99px;border:1px solid var(--s-rule);background:transparent;color:var(--s-ink);cursor:pointer}
.seg:hover{background:rgba(255,235,225,.1)}
.seg[aria-pressed="true"]{background:#fbeee6;color:#3a1410;border-color:#fbeee6}
html:not(.js) .pad,html:not(.js) .cal,html:not(.js) .ctl,html:not(.js) .readout,html:not(.js) .js-only{display:none}
.nojs-note{display:none}html:not(.js) .nojs-note{display:block}
/* the curve */
figure.curve{margin:1.2rem 0 0}
.curve svg{width:100%;height:auto;display:block}
.curve .gr{stroke:var(--s-rule);stroke-width:1}
.curve .tk{fill:var(--s-ink-2);font:400 12px "Plex Mono",ui-monospace,monospace}
.curve .ax{fill:var(--s-ink-2);font:400 13px "Newsreader",Georgia,serif}
.curve .lb{font:500 14px "Newsreader",Georgia,serif}
.curve polyline{fill:none;stroke-width:2.6;stroke-linejoin:round}
.curve .l-ct polyline{stroke:var(--c-ct)} .curve .l-ct circle{fill:var(--c-ct)} .curve .lb-ct{fill:var(--c-ct)}
.curve .l-ab polyline{stroke:var(--c-ab);stroke-dasharray:6 5} .curve .l-ab circle{fill:var(--c-ab)} .curve .lb-ab{fill:var(--c-ab)}
.curve .l-pl polyline{stroke:var(--c-pl)} .curve .l-pl circle{fill:var(--c-pl)} .curve .lb-pl{fill:var(--c-pl)}
.curve .band{fill:rgba(255,200,150,.08)}
#you line{stroke:#fff;stroke-width:1.5;stroke-dasharray:3 4}
#you-dot{fill:#fff;stroke:#3a1410;stroke-width:2}
#you text{fill:#fff;font:600 14px "Newsreader",Georgia,serif}
figcaption{font-size:.88rem;color:var(--s-ink-2);margin-top:.5rem;line-height:1.45}
[hidden]{display:none!important}
html:not(.js) .after-stroke[hidden]{display:block!important}
/* the race */
.race{margin:1rem 0 .4rem;display:grid;gap:.7rem}
.lane{display:grid;grid-template-columns:7.5rem 1fr;align-items:center;gap:.7rem;font-size:.95rem}
.lane b{font-weight:500}
.track{height:.7rem;border-radius:99px;background:rgba(255,235,225,.1);overflow:hidden}
.track i{display:block;height:100%;width:100%;transform-origin:left;transform:scaleX(0);border-radius:99px}
#race-fast{background:var(--c-ab)} #race-slow{background:var(--c-ct)}
#race-out{min-height:1.5em;font-size:.98rem;color:var(--s-ink-2)}
@media (max-width:640px){
  .panel{padding:1.2rem 1.05rem}
  .lane{grid-template-columns:5.8rem 1fr}
  .curve .tk{font-size:19px}.curve .ax{font-size:20px}.curve .lb{font-size:21px}#you text{font-size:21px}
}

/* sound control in the top bar: nothing floats over the page's own controls */
.topbar .snd{display:inline-flex;align-items:center;gap:.35rem;min-height:2.2rem;padding:0 .7rem;border-radius:99px;border:1px solid var(--rule-2);background:transparent;color:var(--ink);font:400 .78rem/1 "Plex Mono",ui-monospace,monospace;letter-spacing:.06em;text-transform:uppercase;cursor:pointer;white-space:nowrap}
.topbar .snd[aria-pressed="true"]{background:var(--ink);color:var(--bg)}
.topbar .snd[aria-pressed="false"] .w{opacity:.2}
html:not(.js) .topbar .snd{display:none}
@media (max-width:380px){.topbar .snd span{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}.topbar .home{font-size:.82rem}}