@font-face{font-family:"Mona Sans Variable";src:url(schrift/mona-sans-var.woff2) format("woff2");font-weight:200 900;font-stretch:75% 125%;font-display:swap}
/* ===== ANPASSEN: Farben (gleiche Familie wie Herz 399) ===== */
:root{
  --bg:#FFFFFF;       /* Seite */
  --card:#F5F5F7;     /* Fläche hinter dem Gehirn */
  --text:#1D1D1F;     /* Schrift */
  --muted:#6E6E73;    /* Unterzeilen */
  --acc:#C8323C;      /* Blutrot, Notruf, gewählter Knopf */
  --acc-2:#3E5FB0;    /* Randzone, zu wenig Sauerstoff */
  --hl:#D98A1E;       /* gewählte Hirnregion */
  --on-acc:#FFFFFF;
}
/* ===== Ende Farben ===== */
*{box-sizing:border-box;margin:0;padding:0}
html,body{background:var(--bg);color:var(--text)}
body{font-family:"Mona Sans Variable",system-ui,-apple-system,"Segoe UI",sans-serif;-webkit-font-smoothing:antialiased;overflow-x:clip}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
:root{--L:max(24px,calc(50vw - 720px));--cw:clamp(330px,31vw,440px)}
.demo-tag{position:absolute;top:16px;left:var(--L);z-index:20;max-width:min(calc(var(--cw) + 30px),calc(100vw - 32px));font:450 12px/1.55 "Mona Sans Variable",system-ui,sans-serif;color:var(--muted);pointer-events:none}
.demo-tag b{display:block;color:var(--text);font-weight:640;letter-spacing:.02em;margin-bottom:2px}

/* ---------- Links Erklärung, rechts das Gehirn (bleibt beim Lesen stehen) ---------- */
.stage{position:relative;display:grid;grid-template-columns:minmax(0,var(--cw)) minmax(0,1fr);gap:clamp(24px,3.4vw,56px);min-height:100svh;padding:0 var(--L);align-items:start}
.col{grid-column:1;grid-row:1;display:flex;flex-direction:column;gap:12px;padding:100px 0 32px;min-width:0}
.figure{grid-column:2;grid-row:1;position:sticky;top:16px;height:calc(100svh - 32px);min-height:560px;margin:16px 0}
.card{position:absolute;inset:0;background:var(--card);border-radius:20px;overflow:hidden}
.card canvas{position:absolute;left:0;top:0;display:block}
.hit{position:absolute;inset:0;touch-action:none;cursor:grab;-webkit-user-select:none;user-select:none;border-radius:20px}
.hit.drag{cursor:grabbing}
.hit:focus{outline:none}
.hit:focus-visible{box-shadow:inset 0 0 0 2px var(--text)}
.lbls{position:absolute;inset:0;pointer-events:none}
.kicker{display:flex;align-items:center;gap:10px;font-size:12px;font-weight:600;letter-spacing:.12em;text-transform:uppercase;color:var(--muted)}
.kicker::before{content:"";width:18px;height:1px;background:currentColor}
.headline{font-size:clamp(32px,3.1vw,46px);line-height:1.04;letter-spacing:-.04em;font-weight:660;text-wrap:balance}

/* Notruf: immer oben, nie unten (dort liegt auf ma-ki.io die Leiste „Alle Simulationen“) */
.notruf{display:flex;align-items:center;gap:12px;padding:10px 14px 10px 10px;border-radius:16px;background:color-mix(in srgb,var(--acc) 7%,var(--bg));box-shadow:inset 0 0 0 1px color-mix(in srgb,var(--acc) 30%,transparent);font-size:13px;line-height:1.4;color:var(--text)}
.notruf b{font-weight:660}
.nr-zahl a{display:inline-grid;place-items:center;min-width:64px;height:44px;padding:0 10px;border-radius:12px;background:var(--acc);color:var(--on-acc);font-size:22px;font-weight:720;letter-spacing:.02em;text-decoration:none;font-variant-numeric:tabular-nums}
.nr-zahl a:focus-visible{outline:2px solid var(--text);outline-offset:3px}
.link{color:var(--text);text-decoration:underline;text-underline-offset:3px;text-decoration-color:color-mix(in srgb,var(--acc) 60%,transparent)}
.link:focus-visible{outline:2px solid var(--text);outline-offset:2px;border-radius:3px}

/* ---------- Knöpfe ---------- */
.eb,.cb,.ab,.nav,.tb button{font:inherit;color:var(--text);cursor:pointer;-webkit-tap-highlight-color:transparent;touch-action:manipulation}
.grp{display:flex;flex-direction:column;gap:6px}
.gl{font-size:12px;font-weight:600;letter-spacing:.12em;text-transform:uppercase;color:var(--muted)}
.gh{display:flex;align-items:center;gap:10px;min-height:44px}
.gh .sc{font-size:12px;font-weight:500;color:var(--muted);font-variant-numeric:tabular-nums;white-space:nowrap}
.gh .pn{margin-left:auto;display:flex;gap:6px}
.nav{display:inline-flex;align-items:center;gap:5px;min-height:44px;padding:0 14px 0 9px;border-radius:999px;border:1px solid color-mix(in srgb,var(--text) 12%,transparent);background:var(--bg);font-size:13.5px;font-weight:600;white-space:nowrap;transition:border-color .25s,background-color .25s,opacity .25s}
.nav.vor{padding:0 9px 0 14px;background:var(--text);border-color:var(--text);color:var(--bg)}
.nav:hover{border-color:var(--acc)}
.nav[aria-disabled="true"]{opacity:.36;cursor:default}
.nav svg{width:16px;height:16px}
.ex{display:grid;grid-template-columns:1fr 1fr;gap:5px}
.eb{display:flex;align-items:center;gap:8px;min-height:44px;padding:3px 10px 3px 3px;border-radius:999px;border:1px solid color-mix(in srgb,var(--text) 11%,transparent);background:var(--bg);text-align:left;font-size:13.5px;font-weight:620;line-height:1.15;transition:border-color .25s,background-color .25s,transform .25s}
.eb .ic{flex:none;width:34px;height:34px;border-radius:50%;display:grid;place-items:center;background:var(--card);font-size:12.5px;font-weight:650;color:var(--muted);transition:background-color .25s,color .25s}
.eb:hover{border-color:color-mix(in srgb,var(--acc) 45%,transparent)}
.eb:active,.cb:active,.ab:active{transform:scale(.985)}
.eb[aria-pressed="true"]{border-color:var(--acc);background:color-mix(in srgb,var(--acc) 6%,var(--bg))}
.eb[aria-pressed="true"] .ic{background:var(--acc);color:var(--on-acc)}
#regs .eb[aria-pressed="true"]{border-color:var(--hl);background:color-mix(in srgb,var(--hl) 8%,var(--bg))}
#regs .eb[aria-pressed="true"] .ic{background:var(--hl)}
.arts{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:5px}
.ab{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;min-height:52px;padding:4px 4px;border-radius:14px;border:1px solid color-mix(in srgb,var(--text) 11%,transparent);background:var(--bg);font-size:12.5px;font-weight:620;line-height:1.1;text-align:center;transition:border-color .25s,background-color .25s,transform .25s}
.ab i{width:22px;height:6px;border-radius:3px;background:var(--c)}
.ab:hover{border-color:var(--c)}
.ab[aria-pressed="true"]{border-color:var(--c);background:color-mix(in srgb,var(--c) 10%,var(--bg))}
.cb{display:flex;align-items:center;justify-content:center;min-height:44px;padding:3px 12px;border-radius:999px;border:1px solid color-mix(in srgb,var(--text) 14%,transparent);background:var(--bg);text-align:center;font-size:13.5px;font-weight:620;line-height:1.15;transition:border-color .25s,background-color .25s,color .25s,transform .25s}
.cb:hover{border-color:color-mix(in srgb,var(--text) 40%,transparent)}
.cb[aria-pressed="true"]{border-color:var(--text);background:var(--text);color:var(--bg)}
.eb:focus-visible,.cb:focus-visible,.ab:focus-visible,.nav:focus-visible,.tb button:focus-visible{outline:2px solid var(--text);outline-offset:3px}
.beh{display:grid;grid-template-columns:1fr 1fr;gap:6px;margin-top:12px}

/* Texte liegen übereinander: das Feld ist so hoch wie der längste, nichts springt */
.steps{min-height:0;display:grid}
.steps>.step{grid-area:1/1}
.steps>.step[hidden]{display:block;visibility:hidden}
.step h2{font-size:clamp(19px,1.6vw,23px);line-height:1.15;letter-spacing:-.02em;font-weight:640;text-wrap:balance}
.step .t{margin-top:8px;font-size:15px;line-height:1.52;color:var(--muted);max-width:48ch;text-wrap:pretty}
.fach{display:none}
html[data-modus="fach"] .fach{display:block}
.step .t.fach b{color:var(--text);font-weight:640}
html:not(.js) .figure,html:not(.js) .panels,html:not(.js) .modus{display:none}
html:not(.js) .stage{grid-template-columns:minmax(0,680px)}
html:not(.js) .steps{display:block}
html:not(.js) .steps>.step[hidden]{visibility:visible;margin-top:18px}
.modus{display:inline-flex;align-self:flex-start;gap:2px;padding:3px;border-radius:999px;background:var(--card)}
.mb{font:inherit;font-size:13px;font-weight:600;min-height:38px;padding:0 14px;border:0;border-radius:999px;background:transparent;color:var(--muted);cursor:pointer;white-space:nowrap;-webkit-tap-highlight-color:transparent;transition:background-color .25s,color .25s,box-shadow .25s}
.mb:hover{color:var(--text)}
.mb[aria-pressed="true"]{background:var(--bg);color:var(--text);box-shadow:0 1px 2px rgba(0,0,0,.08),0 0 0 1px color-mix(in srgb,var(--text) 10%,transparent)}
.mb:focus-visible,.tab:focus-visible{outline:2px solid var(--text);outline-offset:3px}
.tabs{display:flex;gap:2px;border-bottom:1px solid color-mix(in srgb,var(--text) 12%,transparent)}
.tab{font:inherit;font-size:14px;font-weight:620;min-height:44px;padding:0 14px;margin-bottom:-1px;border:0;border-bottom:2px solid transparent;background:transparent;color:var(--muted);cursor:pointer;-webkit-tap-highlight-color:transparent;transition:color .25s,border-color .25s}
.tab:hover{color:var(--text)}
.tab[aria-selected="true"]{color:var(--text);border-bottom-color:var(--acc)}
.panels{display:grid}
.panel{grid-area:1/1;display:flex;flex-direction:column;gap:10px;min-width:0}
.panel[hidden]{display:flex;visibility:hidden}

/* FAST */
.fast{list-style:none;display:grid;gap:6px;margin-top:12px}
.fast li{display:flex;align-items:flex-start;gap:12px;padding:8px 12px 8px 8px;border-radius:14px;background:var(--card);font-size:14px;line-height:1.45;color:var(--text)}
.fast li>b{flex:none;display:grid;place-items:center;width:34px;height:34px;border-radius:10px;background:var(--text);color:var(--bg);font-size:17px;font-weight:720}
.fast li strong{font-weight:660}
.fast li.t144>b{background:var(--acc)}
.fast a{color:var(--acc);font-weight:700}

/* Zeit-Regler */
.zeit{margin-top:12px;padding:12px 14px;border-radius:16px;background:var(--card)}
.zl{display:block;font-size:13px;font-weight:600}
.zl output{font-variant-numeric:tabular-nums}
.zeit input{-webkit-appearance:none;appearance:none;display:block;width:100%;height:44px;margin:0;background:transparent;cursor:pointer;touch-action:pan-y}
.zeit input::-webkit-slider-runnable-track{height:4px;border-radius:2px;background:linear-gradient(90deg,var(--text) 0,var(--text) var(--f,8%),color-mix(in srgb,var(--text) 16%,transparent) var(--f,8%))}
.zeit input::-webkit-slider-thumb{-webkit-appearance:none;appearance:none;width:22px;height:22px;margin-top:-9px;border-radius:50%;background:var(--bg);border:0;box-shadow:0 0 0 1.5px var(--text),0 6px 14px -6px rgba(0,0,0,.45)}
.zeit input::-moz-range-track{height:4px;border-radius:2px;background:color-mix(in srgb,var(--text) 16%,transparent)}
.zeit input::-moz-range-progress{height:4px;border-radius:2px;background:var(--text)}
.zeit input::-moz-range-thumb{width:22px;height:22px;border-radius:50%;background:var(--bg);border:0;box-shadow:0 0 0 1.5px var(--text)}
.zeit input:focus{outline:none}
.zeit input:focus-visible::-webkit-slider-thumb{box-shadow:0 0 0 1.5px var(--text),0 0 0 6px color-mix(in srgb,var(--acc) 30%,transparent)}
.zmarken{position:relative;height:16px;margin:0 11px;font-size:11.5px;color:var(--muted);font-variant-numeric:tabular-nums}
.zmarken span{position:absolute;top:0;transform:translateX(-50%);white-space:nowrap}
.zmarken .zm{color:var(--text);font-weight:600}
.zn{margin-top:8px;font-size:13.5px;line-height:1.45;color:var(--text)}
.zn b{font-variant-numeric:tabular-nums}

/* Werkzeugleiste im Bild */
.tb{position:absolute;top:14px;right:14px;left:14px;display:flex;flex-wrap:wrap;justify-content:flex-end;align-items:center;gap:6px;z-index:3;pointer-events:none}
.tb .g{display:flex;gap:2px;padding:2px;border-radius:999px;background:var(--bg);box-shadow:0 0 0 1px color-mix(in srgb,var(--text) 10%,transparent);pointer-events:auto}
.tb button{display:inline-flex;align-items:center;justify-content:center;gap:6px;min-width:44px;height:44px;padding:0 10px;border:0;border-radius:999px;background:transparent;font-size:13px;font-weight:600;white-space:nowrap;user-select:none;-webkit-user-select:none;transition:background-color .2s,color .2s}
.tb button:hover{background:color-mix(in srgb,var(--text) 6%,transparent)}
.tb button.hold{background:color-mix(in srgb,var(--acc) 10%,transparent)}
.tb button svg{width:18px;height:18px;flex:none}
.tb button[aria-pressed="true"]{background:var(--text);color:var(--bg)}

/* Beschriftung im Bild */
.lb{position:absolute;left:0;top:0;padding:3px 7px 4px;border-radius:8px;background:color-mix(in srgb,var(--card) 88%,transparent);font-size:13px;line-height:1.25;font-weight:620;color:var(--text);white-space:nowrap;opacity:0;transition:opacity .3s}
.lb small{display:block;font-size:12px;font-weight:460;color:var(--muted)}
.lb.on{opacity:1}
.lb.L{text-align:right}
.lb.warn{color:var(--acc)}

/* Lupe: Blick ins Gefäß */
.lupe{position:absolute;left:14px;bottom:14px;width:min(300px,calc(100% - 28px));padding:10px 10px 8px;border-radius:16px;background:var(--bg);box-shadow:0 10px 30px -14px rgba(0,0,0,.35),0 0 0 1px color-mix(in srgb,var(--text) 8%,transparent);z-index:2;pointer-events:none}
.lupe canvas{position:static;display:block;width:100%;height:120px;border-radius:10px}
.lu-t{margin-top:6px;font-size:12.5px;font-weight:600;line-height:1.3}
.lu-t small{display:block;font-weight:460;color:var(--muted)}
.laden{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);font-size:14px;font-weight:600;color:var(--muted);transition:opacity .4s;pointer-events:none}
.laden.weg{opacity:0}

.page-foot{max-width:920px;margin:40px auto 24px;padding:0 24px;color:var(--muted);font-size:14px;line-height:1.55}
.sources h2{margin-bottom:8px;color:var(--text);font-size:18px}
.sources p{max-width:75ch}
.sources ul{margin:10px 0 0 20px}
.sources li{margin:4px 0;overflow-wrap:anywhere}
.sources a{color:inherit;text-decoration:underline;text-underline-offset:3px}

@media (min-width:820px) and (max-width:1180px){.tb .tl{display:none}.tb button{padding:0 10px}}
@media (min-width:820px) and (max-height:760px){.col{padding-top:84px;gap:10px}.headline{font-size:32px}.step .t{font-size:14px}}

/* ---------- Handy und schmale Fenster: Überschrift, Notruf, dann das Gehirn, dann die Bedienung ---------- */
@media (max-width:819px){
  .demo-tag .long{display:none}
  .stage{display:flex;flex-direction:column;align-items:stretch;gap:12px;padding:0 16px;min-height:0}
  .col{display:contents}
  .kicker{order:1;margin-top:72px}
  .headline{order:2;font-size:30px}
  .notruf{order:3}
  .figure{order:4;position:relative;top:0;height:58svh;min-height:340px;margin:0}
  .mzeile{order:5}
  .tabs{order:6}
  .panels{order:7}
  .steps{order:8;padding-bottom:24px}
  .tb .tl{display:none}
  .tb button{min-width:44px;padding:0 8px}
  .tb{top:10px;right:10px;left:10px}
  .lupe{width:min(250px,calc(100% - 20px));left:10px;bottom:10px;padding:8px}
  .lupe canvas{height:64px}
  .lu-t{font-size:12px;margin-top:4px}
  .lu-t small{display:none}
  .tb .g:first-child{display:none}
  .lb{font-size:12px}
  .arts{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (prefers-reduced-motion:reduce){.eb,.cb,.ab,.nav,.tb button,.mb,.tab,.lb,.laden{transition:none}}

/* Knopf zur Übersicht „Herz und Gehirn“ (neben Einfach / Fachlich) */
.mzeile{display:flex;align-items:center;justify-content:space-between;gap:10px;flex-wrap:wrap}
.heim{display:inline-flex;align-items:center;gap:6px;min-height:40px;padding:0 14px 0 10px;border-radius:999px;border:1px solid color-mix(in srgb,var(--text) 12%,transparent);background:var(--bg);color:var(--text);font-size:13px;font-weight:600;text-decoration:none;white-space:nowrap;transition:border-color .25s}
.heim svg{width:16px;height:16px;flex:none}
.heim:hover{border-color:var(--acc)}
.heim:focus-visible{outline:2px solid var(--text);outline-offset:3px}