:root{
  color-scheme:light;
  --bg:#f4f7fb;
  --bg-soft:#eef3f9;
  --surface:#ffffff;
  --surface-2:#f8fafc;
  --text:#152033;
  --muted:#667085;
  --line:#dfe6ef;
  --line-strong:#cbd5e1;
  --primary:#4f46e5;
  --primary-strong:#3730a3;
  --accent:#06b6d4;
  --success:#22c55e;
  --warning-bg:#fff7e6;
  --warning-text:#724b00;
  --warning-line:#f59e0b;
  --result-bg:#eef2ff;
  --result-text:#312e81;
  --shadow-sm:0 8px 24px rgba(15,23,42,.07);
  --shadow-md:0 18px 48px rgba(15,23,42,.10);
  --shadow-lg:0 28px 70px rgba(15,23,42,.14);
  --radius-sm:12px;
  --radius-md:18px;
  --radius-lg:24px;
  --header-bg:rgba(255,255,255,.86);
}
:root[data-theme="dark"]{
  color-scheme:dark;
  --bg:#0b1120;
  --bg-soft:#101827;
  --surface:#151e2e;
  --surface-2:#1b2638;
  --text:#f3f6fb;
  --muted:#a9b4c6;
  --line:#2a374b;
  --line-strong:#3b4b63;
  --primary:#8b83ff;
  --primary-strong:#b4afff;
  --accent:#35c7dc;
  --success:#4ade80;
  --warning-bg:#312514;
  --warning-text:#ffd88a;
  --warning-line:#f3aa25;
  --result-bg:#222851;
  --result-text:#e2e4ff;
  --shadow-sm:0 10px 26px rgba(0,0,0,.20);
  --shadow-md:0 20px 54px rgba(0,0,0,.28);
  --shadow-lg:0 32px 80px rgba(0,0,0,.36);
  --header-bg:rgba(11,17,32,.86);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:92px}
body{
  margin:0;
  min-height:100vh;
  font-family:Inter,ui-sans-serif,system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif;
  background:
    radial-gradient(circle at 10% -10%,color-mix(in srgb,var(--primary) 12%,transparent),transparent 34rem),
    radial-gradient(circle at 95% 8%,color-mix(in srgb,var(--accent) 10%,transparent),transparent 30rem),
    var(--bg);
  color:var(--text);
  line-height:1.55;
  -webkit-font-smoothing:antialiased;
  transition:background-color .22s ease,color .22s ease;
}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit}
button{touch-action:manipulation}
img,canvas{max-width:100%}
.container{width:min(1180px,calc(100% - 32px));margin-inline:auto}

header{
  position:sticky;top:0;z-index:50;
  border-bottom:1px solid color-mix(in srgb,var(--line) 88%,transparent);
  background:var(--header-bg);
  backdrop-filter:blur(18px) saturate(145%);
  -webkit-backdrop-filter:blur(18px) saturate(145%);
}
.nav{min-height:76px;display:flex;align-items:center;justify-content:space-between;gap:24px}
.brand{display:flex;align-items:center;gap:12px;min-width:0;font-weight:900;letter-spacing:-.02em}
.logo{
  display:grid;place-items:center;flex:0 0 auto;width:44px;height:44px;border-radius:15px;
  color:#fff;font-size:1.05rem;font-weight:950;letter-spacing:-.04em;
  background:linear-gradient(135deg,#4f46e5 5%,#7c3aed 55%,#06b6d4 100%);
  box-shadow:0 10px 28px rgba(79,70,229,.28);
}
.wordmark{display:block;font-size:1.16rem;line-height:1.05}
.wordmark small{display:block;margin-top:5px;color:var(--muted);font-size:.64rem;font-weight:800;letter-spacing:.14em;text-transform:uppercase}
.navlinks{display:flex;align-items:center;gap:8px}
.navlinks>a{padding:10px 12px;border-radius:10px;color:var(--muted);font-size:.94rem;font-weight:700;transition:.18s ease}
.navlinks>a:hover{background:var(--surface-2);color:var(--text)}
.icon-btn,.fav-btn{
  display:inline-grid;place-items:center;min-width:44px;height:44px;padding:0 12px;
  border:1px solid var(--line);border-radius:14px;background:var(--surface);color:var(--text);
  box-shadow:var(--shadow-sm);cursor:pointer;transition:transform .18s ease,border-color .18s ease,background .18s ease;
}
.icon-btn:hover,.fav-btn:hover{transform:translateY(-2px);border-color:var(--primary);background:var(--surface-2)}
.icon-btn:focus-visible,.fav-btn:focus-visible,.chip:focus-visible,.primary-btn:focus-visible,.secondary-btn:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:3px solid color-mix(in srgb,var(--primary) 30%,transparent);outline-offset:2px}

.hero{padding:88px 0 44px;text-align:center}
.badge{display:inline-flex;align-items:center;gap:6px;padding:8px 14px;border:1px solid color-mix(in srgb,var(--primary) 24%,var(--line));border-radius:999px;background:color-mix(in srgb,var(--primary) 10%,var(--surface));color:var(--primary-strong);font-size:.88rem;font-weight:800;box-shadow:var(--shadow-sm)}
.hero h1{max-width:920px;margin:24px auto 18px;font-size:clamp(2.45rem,6.5vw,5rem);line-height:.99;letter-spacing:-.055em;text-wrap:balance}
.gradient{background:linear-gradient(90deg,var(--primary),#8b5cf6,var(--accent));-webkit-background-clip:text;background-clip:text;color:transparent}
.hero>p{max-width:730px;margin:0 auto;color:var(--muted);font-size:clamp(1rem,2vw,1.16rem);line-height:1.75}
.search-wrap{position:relative;max-width:720px;margin:32px auto 0}
.search input{
  width:100%;min-height:62px;padding:16px 22px 16px 54px;border:1px solid var(--line);border-radius:20px;
  background:var(--surface);color:var(--text);font-size:1.03rem;box-shadow:var(--shadow-md);
  transition:border-color .18s ease,box-shadow .18s ease,transform .18s ease;
}
.search{position:relative}
.search:before{content:"⌕";position:absolute;left:21px;top:50%;translate:0 -52%;z-index:1;color:var(--muted);font-size:1.5rem;pointer-events:none}
.search input:focus{border-color:var(--primary);box-shadow:0 0 0 4px color-mix(in srgb,var(--primary) 13%,transparent),var(--shadow-md)}
.search input::placeholder{color:color-mix(in srgb,var(--muted) 85%,transparent)}
.suggestions{position:absolute;left:0;right:0;top:calc(100% + 10px);z-index:30;display:none;overflow:hidden;text-align:left;border:1px solid var(--line);border-radius:18px;background:var(--surface);box-shadow:var(--shadow-lg)}
.suggestions a{display:flex;gap:13px;padding:14px 17px;border-bottom:1px solid var(--line);transition:background .15s ease}
.suggestions a:last-child{border-bottom:0}.suggestions a:hover{background:var(--surface-2)}
.suggestions small{color:var(--muted)}.no-suggest{padding:17px;color:var(--muted)}
.stats{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;max-width:760px;margin:30px auto}
.stat{padding:16px 18px;border:1px solid var(--line);border-radius:16px;background:color-mix(in srgb,var(--surface) 82%,transparent);box-shadow:var(--shadow-sm)}
.stat strong,.stat span{display:block}.stat strong{font-size:1.04rem}.stat span{margin-top:2px;color:var(--muted);font-size:.84rem}
.chips{display:flex;gap:9px;justify-content:center;flex-wrap:wrap}
.chip{padding:9px 14px;border:1px solid var(--line);border-radius:999px;background:var(--surface);color:var(--muted);font-weight:750;cursor:pointer;transition:.18s ease}
.chip:hover{transform:translateY(-1px);border-color:var(--primary);color:var(--text)}
.chip.active{border-color:transparent;background:linear-gradient(135deg,var(--primary),#7c3aed);color:#fff;box-shadow:0 8px 22px color-mix(in srgb,var(--primary) 28%,transparent)}

section.block{padding:38px 0}
.section-title{display:flex;justify-content:space-between;align-items:end;gap:20px;margin-bottom:20px}
.section-title h2{margin:0;font-size:clamp(1.45rem,3vw,1.9rem);letter-spacing:-.025em}
.section-title p{margin:6px 0 0;color:var(--muted)}
.grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:17px}
.card{position:relative;min-height:205px;padding:21px;border:1px solid var(--line);border-radius:21px;background:linear-gradient(155deg,var(--surface),color-mix(in srgb,var(--surface-2) 65%,var(--surface)));box-shadow:var(--shadow-sm);transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease}
.card:hover{transform:translateY(-5px);border-color:color-mix(in srgb,var(--primary) 48%,var(--line));box-shadow:var(--shadow-md)}
.card-icon{display:grid;place-items:center;width:48px;height:48px;border:1px solid color-mix(in srgb,var(--primary) 15%,transparent);border-radius:15px;background:color-mix(in srgb,var(--primary) 11%,var(--surface));color:var(--primary-strong);font-size:1.22rem;font-weight:900}
.card h3{margin:15px 36px 8px 0;font-size:1.05rem;letter-spacing:-.015em}.card p{margin:0;color:var(--muted);font-size:.9rem;line-height:1.55}.card-cat{margin-top:16px;color:var(--primary);font-size:.74rem;font-weight:850;letter-spacing:.04em;text-transform:uppercase}
.star{position:absolute;right:12px;top:12px;width:38px;height:38px;border:0;border-radius:12px;background:transparent;color:#9aa4b3;font-size:1.22rem;cursor:pointer;transition:.16s ease}.star:hover{background:var(--surface-2);transform:scale(1.08)}.star.on{color:#f5b301}
.empty{grid-column:1/-1;margin:0;padding:26px;border:1px dashed var(--line-strong);border-radius:18px;background:var(--surface);color:var(--muted);text-align:center}

.breadcrumbs{padding:26px 0 0;color:var(--muted);font-size:.9rem}.breadcrumbs a:hover{color:var(--primary)}
.calc-shell,.panel,.info-card{border:1px solid var(--line);background:linear-gradient(160deg,var(--surface),color-mix(in srgb,var(--surface-2) 45%,var(--surface)));box-shadow:var(--shadow-md)}
.calc-shell{margin-top:22px;padding:clamp(22px,4vw,34px);border-radius:var(--radius-lg)}
.calc-head{padding-bottom:22px;border-bottom:1px solid var(--line);margin-bottom:24px}
.calc-head h1{margin:0;font-size:clamp(2rem,5vw,3.25rem);line-height:1.05;letter-spacing:-.045em}
.calc-head p{max-width:760px;margin:12px 0 6px;color:var(--muted);font-size:1.04rem}.calc-head small,.use-count{color:var(--muted)}
.form-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
.field.full{grid-column:1/-1}.field label{display:block;margin-bottom:8px;font-size:.92rem;font-weight:800}
.field input,.field select,.field textarea{
  width:100%;min-height:50px;padding:13px 14px;border:1px solid var(--line);border-radius:13px;background:var(--bg-soft);color:var(--text);
  transition:border-color .18s ease,box-shadow .18s ease,background .18s ease;
}
.field textarea{min-height:160px;resize:vertical}.field input::placeholder,.field textarea::placeholder{color:color-mix(in srgb,var(--muted) 78%,transparent)}
.field input:hover,.field select:hover,.field textarea:hover{border-color:var(--line-strong)}
.field input:focus,.field select:focus,.field textarea:focus{border-color:var(--primary);background:var(--surface);box-shadow:0 0 0 4px color-mix(in srgb,var(--primary) 12%,transparent);outline:0}
.calc-controls{display:flex;margin-top:20px}
.primary,.primary-btn{
  min-height:58px;width:100%;max-width:380px;padding:15px 24px;border:2px solid var(--line-strong);border-radius:16px;
  background:var(--surface);color:#2563eb;font-size:1.06rem;font-weight:900;letter-spacing:.01em;cursor:not-allowed;opacity:.78;
  box-shadow:var(--shadow-sm);transition:transform .18s ease,box-shadow .18s ease,filter .18s ease,background .18s ease,border-color .18s ease;
}
.primary-btn.is-ready,.primary.is-ready{border-color:#65e483;background:#39d353;color:#1557c0;cursor:pointer;opacity:1;box-shadow:0 14px 34px rgba(57,211,83,.24)}
.primary-btn.is-ready:hover,.primary.is-ready:hover{transform:translateY(-2px);filter:brightness(1.025);box-shadow:0 18px 42px rgba(57,211,83,.30)}
.primary-btn:disabled,.primary:disabled{pointer-events:none}
.result{display:none;margin-top:20px;padding:18px 19px;border:1px solid color-mix(in srgb,var(--primary) 22%,var(--line));border-radius:16px;background:var(--result-bg);color:var(--result-text);line-height:1.7;box-shadow:inset 0 1px 0 rgba(255,255,255,.18)}
.alert,.notice{margin-top:18px;padding:15px 17px;border:1px solid color-mix(in srgb,var(--warning-line) 30%,transparent);border-left:4px solid var(--warning-line);border-radius:13px;background:var(--warning-bg);color:var(--warning-text);line-height:1.6}
.action-row{display:flex;gap:10px;flex-wrap:wrap;margin-top:16px}
.secondary-btn{min-height:44px;padding:10px 15px;border:1px solid var(--line);border-radius:12px;background:var(--surface);color:var(--text);font-weight:780;cursor:pointer;transition:.18s ease}.secondary-btn:hover{transform:translateY(-1px);border-color:var(--primary);background:var(--surface-2)}
#resultChart{width:100%;height:auto;margin-top:18px;border:1px solid var(--line);border-radius:16px;background:var(--surface)}
.calc-content{margin-top:24px}.content-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}
.info-card,.panel{padding:24px;border-radius:20px}.info-card h2,.info-card h3,.panel h2,.panel h3{margin-top:0;letter-spacing:-.02em}.info-card h3{margin-top:24px}.info-card p,.info-card li,.content{line-height:1.75}.info-card ul{padding-left:1.2rem}
.related{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;margin:0;padding:0;list-style:none}.related li{margin:0}.related a{display:block;padding:13px 15px;border:1px solid var(--line);border-radius:13px;background:var(--surface);font-weight:720;transition:.18s ease}.related a:hover{transform:translateY(-2px);border-color:var(--primary);color:var(--primary)}
.faq{overflow:hidden;border:1px solid var(--line);border-radius:18px;background:var(--surface);box-shadow:var(--shadow-sm)}.faq details{padding:0 18px;border-top:1px solid var(--line)}.faq details:first-child{border-top:0}.faq summary{padding:16px 0;font-weight:800;cursor:pointer}.faq p{margin:0 0 17px;color:var(--muted);line-height:1.7}
.calc-layout{display:grid;grid-template-columns:minmax(0,2fr) minmax(260px,1fr);gap:24px;padding-bottom:40px}.calc-hero{padding:45px 0 20px}.history-strip{margin-top:1rem}

footer{margin-top:64px;border-top:1px solid var(--line);background:color-mix(in srgb,var(--surface) 88%,transparent)}
.footer{min-height:98px;display:flex;align-items:center;justify-content:space-between;gap:22px;color:var(--muted);font-size:.9rem}.footer a{font-weight:700}.footer a:hover{color:var(--primary)}

@media(max-width:980px){.grid{grid-template-columns:repeat(3,minmax(0,1fr))}.calc-layout{grid-template-columns:1fr}}
@media(max-width:760px){.grid{grid-template-columns:repeat(2,minmax(0,1fr))}.content-grid{grid-template-columns:1fr}.related{grid-template-columns:1fr}.hero{padding-top:64px}.stats{grid-template-columns:1fr;max-width:520px}.stat{padding:13px 16px}.navlinks>a{display:none}}
@media(max-width:600px){.container{width:min(100% - 22px,1180px)}.nav{min-height:68px}.logo{width:40px;height:40px}.wordmark{font-size:1.03rem}.wordmark small{font-size:.57rem}.hero{padding:50px 0 28px}.hero h1{font-size:clamp(2.25rem,12vw,3.4rem)}.search input{min-height:58px;padding-left:49px}.grid{grid-template-columns:1fr}.card{min-height:0}.form-grid{grid-template-columns:1fr}.field.full{grid-column:auto}.calc-shell{padding:20px 16px;border-radius:19px}.primary-btn,.primary{max-width:none}.action-row>*{flex:1 1 100%}.section-title{align-items:flex-start}.footer{min-height:120px;flex-direction:column;justify-content:center;text-align:center;padding:24px 0}.chips{justify-content:flex-start;flex-wrap:nowrap;overflow-x:auto;padding:3px 1px 10px;scrollbar-width:none}.chips::-webkit-scrollbar{display:none}.chip{flex:0 0 auto}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}}
@media print{header,footer,.navlinks,.breadcrumbs,.calc-controls,.action-row,#relatedBlock,.medical-note{display:none!important}body{background:#fff!important;color:#000!important}.container{max-width:none}.calc-shell,.info-card{box-shadow:none;border:1px solid #bbb;background:#fff!important}#resultChart{max-width:700px}}


/* Version 4 · Schritt 3: Formulare und Berechnen-Button */
.calc-controls{align-items:center;gap:12px;flex-wrap:wrap}
.primary,.primary-btn{flex:1 1 260px;margin:0}
.reset-btn{min-height:58px;padding:15px 22px;border:1px solid var(--line-strong);border-radius:16px;background:var(--surface-2);color:var(--text);font-size:1rem;font-weight:850;cursor:pointer;transition:transform .18s ease,border-color .18s ease,background .18s ease}
.reset-btn:hover{transform:translateY(-1px);border-color:var(--primary);background:var(--surface)}
.reset-btn:focus-visible,.primary-btn:focus-visible{outline:3px solid color-mix(in srgb,var(--primary) 38%,transparent);outline-offset:3px}
.form-status{flex:1 1 100%;color:var(--muted);font-size:.86rem;line-height:1.45}
.required-mark{margin-left:4px;color:#ef4444;font-weight:900}
.field-hint{display:block;margin-top:7px;color:var(--muted);font-size:.8rem;line-height:1.45}
.field-error{min-height:1.2em;margin-top:6px;color:#dc2626;font-size:.82rem;font-weight:700}
.field.has-error input,.field.has-error select,.field.has-error textarea{border-color:#ef4444;background:color-mix(in srgb,#ef4444 7%,var(--bg-soft));box-shadow:0 0 0 4px color-mix(in srgb,#ef4444 12%,transparent)}
[data-theme="dark"] .field-error{color:#fca5a5}
.primary-btn:not(.is-ready),.primary:not(.is-ready){background:#fff;color:#2563eb;border-color:#d1d5db;opacity:.94}
[data-theme="dark"] .primary-btn:not(.is-ready),[data-theme="dark"] .primary:not(.is-ready){background:#f8fafc;color:#2563eb;border-color:#cbd5e1}
.primary-btn.is-ready,.primary.is-ready{background:#39d353;color:#1557c0;border-color:#65e483}
.result{font-size:1rem}
.result strong:first-child{font-size:1.18rem}
@media(max-width:600px){.calc-controls{align-items:stretch}.primary,.primary-btn,.reset-btn{flex:1 1 100%;max-width:none}.form-status{text-align:center}}


/* Schritt 4 Funktions-Feinschliff */
.star[aria-pressed="true"]{transform:scale(1.05)}
.star:focus-visible,.chip:focus-visible,.icon-btn:focus-visible{outline:3px solid var(--focus, #60a5fa);outline-offset:3px}
.search input:focus-visible{outline:3px solid var(--focus, #60a5fa);outline-offset:2px}
.no-suggest{padding:1rem;color:var(--muted)}

/* Version 4 Final – mobile polish, accessibility and resilient layout */
html,body{overflow-x:hidden}
main{min-width:0}
.card,.calc-shell,.info-card,.panel,.field{min-width:0}
.card h3,.card p,.info-card,.result,.footer{overflow-wrap:anywhere}
button,a,input,select,textarea{-webkit-tap-highlight-color:transparent}
.icon-btn{font-size:1.05rem}
.result[style*="display: block"],.result:not(:empty){animation:rpResultIn .22s ease-out}
@keyframes rpResultIn{from{opacity:.45;transform:translateY(5px)}to{opacity:1;transform:none}}
@media(max-width:760px){
  .nav{gap:10px}.brand{gap:9px}.navlinks{gap:4px}.navlinks .icon-btn{flex:0 0 auto}
  .section-title{margin-bottom:16px}.block{padding-top:28px!important;padding-bottom:28px!important}
  .calc-head h1{font-size:clamp(1.85rem,9vw,2.65rem)}
  .calc-head p{font-size:.98rem}.info-card,.panel{padding:20px}
}
@media(max-width:420px){
  .container{width:calc(100% - 18px)}.wordmark small{display:none}.logo{border-radius:13px}
  .hero h1{letter-spacing:-.045em}.badge{font-size:.78rem;padding:7px 10px}
  .card{padding:18px}.calc-shell{padding:18px 14px}.breadcrumbs{font-size:.82rem}
  .field input,.field select,.field textarea{font-size:16px}
}
@media(hover:none){.card:hover,.icon-btn:hover,.fav-btn:hover,.secondary-btn:hover,.reset-btn:hover{transform:none}}
@media print{
  .result{display:block!important;color:#000!important;background:#fff!important}
  a{color:#000!important;text-decoration:none!important}
}