:root{--ink:#18201d;--paper:#f4f0e6;--cream:#e9e2d2;--green:#27594c;--lime:#d8ef76;--orange:#dd7048;--line:rgba(24,32,29,.18)}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--paper);color:var(--ink);font-family:Inter,ui-sans-serif,system-ui,-apple-system,sans-serif}button,input{font:inherit}button,a{color:inherit}.topbar{height:72px;display:flex;align-items:center;justify-content:space-between;padding:0 clamp(20px,5vw,72px);border-bottom:1px solid var(--line)}.brand{display:flex;align-items:center;gap:10px;font-weight:750;text-decoration:none}.brand-mark{display:grid;place-items:center;width:32px;height:32px;background:var(--green);color:var(--lime);border-radius:50%;font-size:22px}.topbar nav{display:flex;gap:30px}.topbar nav a{text-decoration:none;font-size:14px}.hero{padding:clamp(52px,8vw,100px) clamp(20px,5vw,72px) 80px}.intro{max-width:820px}.eyebrow{text-transform:uppercase;letter-spacing:.17em;font-weight:750;font-size:12px;color:var(--green)}h1{font-family:Georgia,serif;font-size:clamp(48px,7vw,96px);line-height:.94;letter-spacing:-.045em;margin:18px 0 28px;font-weight:400}h1 em{color:var(--orange);font-weight:400}.intro>p:not(.eyebrow){max-width:590px;font-size:18px;line-height:1.65}.quick-facts{display:flex;gap:28px;margin:30px 0 52px}.quick-facts span{display:flex;align-items:baseline;gap:7px;font-size:13px}.quick-facts strong{font-family:Georgia,serif;font-size:30px;color:var(--green)}.lab-shell{display:grid;grid-template-columns:minmax(0,1fr) 300px;background:var(--green);min-height:600px;border-radius:3px;overflow:hidden}.viewport-wrap{position:relative;min-height:600px;background:radial-gradient(circle at 50% 46%,#397261 0,#27594c 55%,#1c4339 100%)}#solid{display:block;width:100%;height:100%;touch-action:none;cursor:grab}#solid:active{cursor:grabbing}.canvas-hint{position:absolute;left:24px;bottom:22px;color:#d7e4dd;font-size:12px}.view-actions{position:absolute;right:20px;top:20px;display:flex;gap:8px}.view-actions button,.segmented button{border:1px solid rgba(255,255,255,.28);background:rgba(10,30,25,.22);color:white;padding:9px 12px;border-radius:999px;cursor:pointer;font-size:12px}.view-actions button[aria-pressed=true],.segmented button.active{background:var(--lime);color:var(--ink);border-color:var(--lime)}.controls{background:#203d35;color:white;padding:30px 25px;display:flex;flex-direction:column;gap:30px}.control-title{text-transform:uppercase;letter-spacing:.15em;font-size:11px;margin:0 0 12px;color:#bed0c9}.segmented{display:flex;flex-wrap:wrap;gap:6px}.controls label{display:flex;flex-direction:column;gap:12px;font-size:13px}.controls label>span{display:flex;justify-content:space-between}.controls output{color:var(--lime)}input[type=range]{width:100%;accent-color:var(--lime)}.controls .check{flex-direction:row;align-items:center;gap:10px}.check input{accent-color:var(--lime)}.math{padding:90px clamp(20px,5vw,72px);background:var(--cream)}.section-heading{max-width:650px}.section-heading h2{font:400 clamp(36px,5vw,64px)/1 Georgia,serif;margin:12px 0}.section-heading>p:last-child{color:#5f6864}.formula-grid{display:grid;grid-template-columns:repeat(4,1fr);margin-top:50px;border-top:1px solid var(--line);border-left:1px solid var(--line)}.formula-grid article{min-height:200px;padding:26px;border-right:1px solid var(--line);border-bottom:1px solid var(--line);display:flex;flex-direction:column}.formula-grid span{font-size:13px}.formula-grid strong{font:400 46px/1 Georgia,serif;color:var(--green);margin:auto 0 10px}.formula-grid code{font-size:13px;color:#626965}.euler{margin-top:60px;display:flex;justify-content:center;align-items:center;gap:clamp(14px,4vw,55px)}.euler div{display:flex;flex-direction:column;text-align:center}.euler span{font-size:12px;text-transform:uppercase;letter-spacing:.1em}.euler b{font:400 48px Georgia,serif}.euler i{font:400 30px Georgia,serif}.euler .result{background:var(--green);color:white;border-radius:50%;width:100px;height:100px;justify-content:center}.experiments{padding:90px clamp(20px,5vw,72px)}.experiment-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:45px}.experiment{min-height:210px;text-align:left;padding:24px;background:transparent;border:1px solid var(--line);cursor:pointer;display:flex;flex-direction:column}.experiment:hover,.experiment.active{background:var(--ink);color:var(--paper)}.experiment span{font-size:12px;color:var(--orange)}.experiment strong{font:400 28px Georgia,serif;margin:auto 0 8px}.experiment small{line-height:1.5;opacity:.7}.experiment-text{border-left:3px solid var(--orange);padding:15px 20px;margin:28px 0 0;max-width:800px}footer{display:flex;justify-content:space-between;padding:30px clamp(20px,5vw,72px);border-top:1px solid var(--line);font-size:12px}
@media(max-width:850px){.lab-shell{grid-template-columns:1fr}.viewport-wrap{min-height:520px}.controls{display:grid;grid-template-columns:repeat(2,1fr)}.formula-grid{grid-template-columns:repeat(2,1fr)}.experiment-grid{grid-template-columns:1fr}.experiment{min-height:150px}}@media(max-width:560px){.topbar nav{display:none}.quick-facts{gap:14px;flex-wrap:wrap}.lab-shell,.viewport-wrap{min-height:470px}.controls{grid-template-columns:1fr}.formula-grid{grid-template-columns:1fr}.euler{gap:8px}.euler b{font-size:34px}.euler .result{width:72px;height:72px}.canvas-hint{display:none}.view-actions{left:12px;right:auto;top:12px}footer{gap:20px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
select{width:100%;padding:10px 11px;border:1px solid rgba(255,255,255,.28);border-radius:3px;background:#294b42;color:white;font:inherit}
.morph-scale{font-size:11px;color:#bed0c9}.morph-scale i{font-style:normal}.morph-control input{background:linear-gradient(90deg,var(--lime) 0 25%,#d7e4dd 25% 50%,var(--lime) 50% 75%,#d7e4dd 75% 100%)}
h1{font-size:clamp(38px,5.2vw,70px);line-height:.98;margin:14px 0 22px}.section-heading h2{font-size:clamp(30px,4vw,48px)}.hero{padding-top:clamp(42px,6vw,72px);padding-bottom:64px}
.sphere-controls{display:flex;flex-direction:column;gap:11px}.sphere-controls .control-title{margin-bottom:2px}.sphere-controls .check span{justify-content:flex-start;align-items:center;gap:8px}.sphere-dot{display:inline-block;width:10px;height:10px;border-radius:50%}.circum-dot{background:#d8ef76}.edge-dot{background:#ff9c78}.in-dot{background:#8fd5ff}
.live-metrics{display:grid;grid-template-columns:repeat(5,1fr);gap:3px;border-top:1px solid rgba(255,255,255,.16);border-bottom:1px solid rgba(255,255,255,.16);padding:7px 0}.live-metrics div{min-width:0;text-align:center}.live-metrics span{display:block;font-size:9px;color:#bed0c9;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.live-metrics b{display:block;margin-top:2px;color:var(--lime);font:400 13px Georgia,serif}
.mode-switch{display:flex;gap:6px;margin:6px 0}.mode-switch .experiment{min-height:0;padding:7px 13px;border-radius:999px;display:block;width:auto;background:transparent;color:var(--ink)}.mode-switch .experiment.active,.mode-switch .experiment:hover{background:var(--ink);color:var(--paper)}.mode-switch .experiment strong{font:500 12px system-ui;margin:0}.mode-switch+.experiment-text{display:none}
.eyebrow a{color:var(--orange);text-decoration:none;margin-left:.45em}.eyebrow a:hover{text-decoration:underline}
.module-picker{display:flex;align-items:center;gap:8px;margin:6px 0}.module-picker label{font-size:11px;text-transform:uppercase;letter-spacing:.12em;color:var(--green);font-weight:500}.module-picker select{width:auto;min-width:260px;padding:7px 34px 7px 10px;background:transparent;color:var(--ink);border-color:var(--line);border-radius:999px}.special-control[hidden]{display:none}
.module-picker+.experiment-text{margin:5px 0;padding:3px 9px;font-size:12px;line-height:1.3;border-left:2px solid var(--orange);max-width:820px}
.view-actions{flex-wrap:wrap;justify-content:flex-end;max-width:min(620px,82%)}.flight-intensity{flex-basis:180px;display:grid;grid-template-columns:1fr;gap:2px;color:#d7e4dd;font-size:10px}.flight-intensity span{display:flex;justify-content:space-between}.flight-intensity input{width:100%;accent-color:var(--lime)}
.history-button{border:1px solid var(--line);background:transparent;border-radius:999px;padding:7px 13px;cursor:pointer}.history-button:hover{background:var(--ink);color:var(--paper)}.history-dialog{width:min(720px,calc(100% - 32px));max-height:min(720px,calc(100% - 32px));padding:0;border:0;border-radius:5px;background:var(--paper);color:var(--ink);box-shadow:0 24px 80px rgba(0,0,0,.35)}.history-dialog::backdrop{background:rgba(10,24,20,.68);backdrop-filter:blur(3px)}.history-head{position:sticky;top:0;z-index:1;display:flex;justify-content:space-between;align-items:flex-start;padding:24px 26px 18px;background:var(--paper);border-bottom:1px solid var(--line)}.history-head p{margin:0}.history-head h2{font:400 34px Georgia,serif;margin:5px 0 0}.history-head button{border:1px solid var(--line);background:transparent;border-radius:999px;padding:7px 12px;cursor:pointer}.history-list{list-style:none;margin:0;padding:5px 26px 26px}.history-list li{display:grid;grid-template-columns:100px 1fr;gap:18px;padding:16px 0;border-bottom:1px solid var(--line)}.history-list time{font-size:12px;color:var(--green);font-weight:500}.history-list strong{font:500 16px Georgia,serif}.history-list p{margin:5px 0 0;font-size:13px;line-height:1.45;color:#59625e}
@media(max-width:560px){.history-list li{grid-template-columns:1fr;gap:5px}.history-head{padding:18px}.history-list{padding:4px 18px 18px}footer{flex-wrap:wrap}}
@media(min-width:851px) and (max-height:850px){.intro>p:not(.eyebrow):not(.experiment-text),.module-picker+.experiment-text,.quick-facts{display:none}.controls{padding-top:7px;padding-bottom:7px;gap:2px}}
/* Kompakte Desktop-Arbeitsfläche – optimiert für 13-Zoll-Notebooks */
@media(min-width:851px){
  .topbar{height:56px}
  .hero{padding-top:16px;padding-bottom:42px}
  h1{font-size:clamp(30px,3.5vw,46px);line-height:1;margin:6px 0 10px;white-space:nowrap}
  h1 br{display:none}h1 em{margin-left:.16em}
  .intro>p:not(.eyebrow):not(.experiment-text){font-size:13px;line-height:1.25;margin:0;max-width:760px}
  .eyebrow{margin:0}
  .quick-facts{margin:7px 0 12px}
  .quick-facts strong{font-size:25px}
  .lab-shell{grid-template-columns:minmax(0,1fr) 420px;min-height:530px}
  .viewport-wrap{min-height:530px}
  .controls{padding:9px 14px;gap:3px;justify-content:space-between}
  .controls label{gap:5px;font-size:12px}
  .controls label>span{line-height:1.25}
  .control-title{margin-bottom:6px}
  .segmented{gap:4px}
  .segmented button{padding:7px 10px}
  select{padding:7px 9px}
  .sphere-controls{display:grid;grid-template-columns:repeat(3,1fr);gap:7px 5px}
  .sphere-controls .control-title{grid-column:1/-1;margin:0}
  .sphere-controls .check{align-items:flex-start;gap:4px}
  .sphere-controls .check span{display:block;line-height:1.15}
  .sphere-dot{width:8px;height:8px;margin-right:4px}
  .section-heading h2{font-size:clamp(28px,3.4vw,42px)}
}