/* biogas-strom-check.de — Basis = hotel/style.css (Stand 27.09.2026), Ergänzungen unten ab „Biogas v1". OFE-Design, tokens.css aus ~/.claude/design-system/ofe/project */
@font-face{font-family:"Manrope";src:url("/fonts/Manrope.ttf") format("truetype");font-weight:200 800;font-display:swap;}
@font-face{font-family:"Inter";src:url("/fonts/Inter.ttf") format("truetype");font-weight:100 900;font-display:swap;}
*,*::before,*::after{box-sizing:border-box;}
html,body{margin:0;padding:0;background:var(--ofe-bg);font-family:var(--ofe-font-body);color:var(--ofe-text);-webkit-font-smoothing:antialiased;}
a{color:inherit;}
.wrap{max-width:1280px;margin:0 auto;padding:0 24px;}
@media(min-width:1024px){.wrap{padding:0 32px;}}

/* Kopf */
.top{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:22px 0;}
.brand{display:flex;align-items:center;gap:12px;text-decoration:none;}
.brand img{width:38px;height:38px;}
.wm{display:flex;flex-direction:column;line-height:1.15;}
.wm b{font:700 16px var(--ofe-font-display);color:var(--ofe-ink);}
.wm span{font:600 11px var(--ofe-font-display);color:var(--ofe-green);letter-spacing:.12em;text-transform:uppercase;}
.top-cta{font:600 14px var(--ofe-font-body);color:var(--ofe-ink);text-decoration:none;white-space:nowrap;}
.top-cta:hover{color:var(--ofe-green-deep);}

/* Typo */
.eyebrow{display:inline-flex;align-items:center;gap:8px;font:700 12px var(--ofe-font-display);letter-spacing:.16em;
  text-transform:uppercase;color:var(--ofe-green-deep);}
.eyebrow.pill{background:var(--ofe-green-tint);padding:6px 12px;border-radius:999px;}
.eyebrow i{width:6px;height:6px;border-radius:50%;background:var(--ofe-green);display:inline-block;}
h1,h2,h3,h4{font-family:var(--ofe-font-display);color:var(--ofe-ink);margin:0;}
h1{font-weight:800;font-size:clamp(36px,5vw,60px);line-height:1.08;letter-spacing:-.02em;margin:22px 0 20px;}
h2{font-weight:800;font-size:clamp(28px,3.4vw,40px);line-height:1.12;letter-spacing:-.02em;margin:14px 0 14px;}
h3{font-weight:700;font-size:20px;letter-spacing:-.01em;margin:0 0 8px;}
.accent{color:var(--ofe-green);}
.lede{font-size:18px;line-height:1.55;color:var(--ofe-text-muted);margin:0 0 28px;}
p{line-height:1.6;}

/* Buttons */
.ctas{display:flex;flex-wrap:wrap;gap:12px;align-items:center;}
.btn{display:inline-flex;align-items:center;gap:8px;height:48px;padding:0 24px;border-radius:var(--ofe-radius-lg);
  font:700 16px var(--ofe-font-body);text-decoration:none;border:1px solid transparent;transition:180ms;}
.btn svg{width:16px;height:16px;}
.btn-primary{background:var(--ofe-green);color:var(--ofe-ink);box-shadow:var(--ofe-shadow-cta);}
.btn-primary:hover{background:var(--ofe-green-dark);}
.btn-outline{border-color:var(--ofe-border);color:var(--ofe-ink);background:transparent;}
.btn-outline:hover{border-color:var(--ofe-green);color:var(--ofe-green-deep);}
.btn-ghost{border-color:rgba(255,255,255,.3);color:#fff;}
.btn-ghost:hover{background:rgba(255,255,255,.1);}

/* Sektionen */
section{padding:88px 0;}
@media(max-width:700px){section{padding:64px 0;}}
.surface{background:var(--ofe-surface, oklch(98% 0 0));}
.dark{background:var(--ofe-dark);color:#fff;}
.dark h2,.dark h3{color:#fff;}
.dark .lede,.dark p{color:rgba(255,255,255,.78);}
.hero{position:relative;overflow:hidden;padding:72px 0 96px;}
.hero::before{content:"";position:absolute;top:-200px;left:-200px;width:640px;height:640px;border-radius:50%;
  background:radial-gradient(circle,var(--ofe-green) 0%,transparent 70%);opacity:.06;pointer-events:none;}
.badges{display:flex;flex-wrap:wrap;gap:10px 22px;margin:0 0 30px;padding:0;list-style:none;}
.badges li{display:flex;align-items:center;gap:8px;font-size:15px;font-weight:500;color:var(--ofe-ink);}
.badges svg{width:16px;height:16px;color:var(--ofe-green);}

/* Karten */
.grid{display:grid;gap:24px;grid-template-columns:repeat(4,1fr);margin-top:36px;}
@media(max-width:1100px){.grid{grid-template-columns:repeat(2,1fr);}}
@media(max-width:640px){.grid{grid-template-columns:1fr;}}
.card{background:var(--ofe-card, #fff);border:1px solid var(--ofe-border);border-radius:var(--ofe-radius-2xl);padding:26px;
  transition:300ms var(--ofe-ease-out);}
.card:hover{border-color:color-mix(in oklch, var(--ofe-green) 40%, transparent);box-shadow:var(--ofe-shadow-md);}
.tile{width:44px;height:44px;border-radius:var(--ofe-radius-lg);background:var(--ofe-green-tint);display:grid;place-items:center;margin-bottom:16px;}
.tile svg{width:22px;height:22px;color:var(--ofe-green-deep);}
.card p{font-size:15px;color:var(--ofe-text-muted);margin:0;}

/* Schritte */
.split{display:grid;grid-template-columns:1.15fr 1fr;gap:64px;align-items:start;margin-top:36px;}
@media(max-width:960px){.split{grid-template-columns:1fr;gap:36px;}}
.steps{list-style:none;margin:0;padding:0;display:grid;gap:18px;}
.steps li{display:grid;grid-template-columns:44px 1fr;gap:16px;align-items:start;}
.num{width:44px;height:44px;border-radius:50%;border:2px solid var(--ofe-green);display:grid;place-items:center;
  font:800 17px var(--ofe-font-display);color:var(--ofe-ink);}
.steps h3{font-size:18px;margin:10px 0 4px;}
.steps p{margin:0;font-size:15px;color:var(--ofe-text-muted);}
.box{border:1px solid var(--ofe-border);border-left:3px solid var(--ofe-green);border-radius:var(--ofe-radius-lg);padding:22px 24px;background:#fff;}
.box h3{font-size:17px;}
.box ul{margin:10px 0 0;padding-left:18px;color:var(--ofe-text-muted);font-size:15px;line-height:1.6;}
.box p{font-size:15px;color:var(--ofe-text-muted);margin:10px 0 0;}

/* Praxisfall */
.facts{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin:36px 0 24px;}
@media(max-width:800px){.facts{grid-template-columns:1fr;}}
.fact{border:1px solid rgba(255,255,255,.14);border-radius:var(--ofe-radius-2xl);padding:24px;}
.fact .big{font:800 42px/1 var(--ofe-font-display);color:var(--ofe-green);font-variant-numeric:tabular-nums;}
.fact p{margin:10px 0 0;font-size:15px;}
.fine{font-size:14px !important;color:rgba(255,255,255,.62) !important;}
.dark a{color:#fff;}

/* Prinzipien */
.principles{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:36px;}
@media(max-width:900px){.principles{grid-template-columns:1fr;}}
.principles div{border-top:2px solid var(--ofe-green);padding-top:16px;}
.principles p{color:var(--ofe-text-muted);font-size:15px;margin:6px 0 0;}

/* Abschluss */
.final{text-align:left;}
.nicht{font-size:15px;color:var(--ofe-text-muted);margin:0 0 26px;}
.kontakt{margin-top:22px;font-size:15px;color:var(--ofe-text-muted);}
.kontakt a{color:var(--ofe-ink);}

footer{border-top:1px solid var(--ofe-border);padding:26px 0 44px;font-size:14px;color:var(--ofe-text-muted);}
footer .row{display:flex;flex-wrap:wrap;gap:8px 22px;justify-content:space-between;}
footer a{color:var(--ofe-text-muted);margin-right:18px;}

/* Rechtstexte */
.legal{padding:48px 0 72px;}
.legal h1{font-size:clamp(30px,4vw,44px);}
.legal h2{font-size:22px;margin:34px 0 8px;}
.legal h3{font-size:17px;margin:22px 0 6px;}
.legal p,.legal li{font-size:15.5px;color:var(--ofe-text);line-height:1.65;}

/* v2 27.09.2026: Einordnungs-Block */
.box .ctas{margin-top:18px;}
.box.form{background:var(--ofe-green-tint);border-color:transparent;}
.box.form ul{color:var(--ofe-ink);}
#einordnung .split{grid-template-columns:1fr 1fr;}
@media(max-width:960px){#einordnung .split{grid-template-columns:1fr;}}

/* v3 27.09.2026: Ablauf vierstufig, Gründer-Zitat, fine/facts auf hellem Grund */
.steps.four{grid-template-columns:1fr;}
@media(min-width:1000px){.steps.four{grid-template-columns:1fr 1fr;column-gap:48px;}}
.quote{margin:0 0 20px;padding:18px 22px;border-left:3px solid var(--ofe-green);background:var(--ofe-green-tint);
  border-radius:0 var(--ofe-radius-lg) var(--ofe-radius-lg) 0;}
.quote p{margin:0;font-size:17px;line-height:1.55;color:var(--ofe-ink);}
.quote cite{display:block;margin-top:10px;font:600 13px var(--ofe-font-display);font-style:normal;color:var(--ofe-green-deep);}
.surface .box:not(.form){background:#fff;}
section:not(.dark) .fine{color:var(--ofe-text-muted) !important;margin-top:22px;}
.facts.light .fact{border-color:var(--ofe-border);background:#fff;}
.facts.light .big{color:var(--ofe-green-deep);}

/* Biogas v1 03.10.2026: Praxis-Leiste, Leistungskacheln, Muster, FAQ, Zeitleiste */
.proof{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;margin-top:8px;}
@media(max-width:1000px){.proof{grid-template-columns:repeat(2,1fr);}}
@media(max-width:560px){.proof{grid-template-columns:1fr;}}
.proof div{border-top:2px solid var(--ofe-green);padding-top:14px;}
.proof .big{font:800 34px/1.05 var(--ofe-font-display);color:var(--ofe-ink);font-variant-numeric:tabular-nums;letter-spacing:-.02em;}
.proof p{margin:8px 0 0;font-size:15px;color:var(--ofe-text-muted);}
.grid.three{grid-template-columns:repeat(3,1fr);}
@media(max-width:1100px){.grid.three{grid-template-columns:repeat(2,1fr);}}
@media(max-width:640px){.grid.three{grid-template-columns:1fr;}}
.grid.two{grid-template-columns:repeat(2,1fr);}
@media(max-width:800px){.grid.two{grid-template-columns:1fr;}}
.card h3{font-size:19px;}
.card ul{margin:10px 0 0;padding-left:18px;color:var(--ofe-text-muted);font-size:15px;line-height:1.6;}
.card ul li+li{margin-top:4px;}
.card .tag{display:inline-block;margin-bottom:12px;font:700 11px var(--ofe-font-display);letter-spacing:.14em;text-transform:uppercase;color:var(--ofe-green-deep);}
.dark .card{background:transparent;border-color:rgba(255,255,255,.14);}
.dark .card h3{color:#fff;}
.dark .card p,.dark .card ul{color:rgba(255,255,255,.78);}
.dark .box{background:transparent;border-color:rgba(255,255,255,.14);border-left-color:var(--ofe-green);}
.dark .box ul,.dark .box p{color:rgba(255,255,255,.78);}
.qs{counter-reset:q;list-style:none;margin:10px 0 0;padding:0;}
.qs li{counter-increment:q;position:relative;padding-left:34px;margin:10px 0;font-size:15.5px;line-height:1.55;}
.qs li::before{content:counter(q);position:absolute;left:0;top:0;width:24px;height:24px;border-radius:50%;border:2px solid var(--ofe-green);
  display:grid;place-items:center;font:800 12px var(--ofe-font-display);}
.dark .qs li{color:rgba(255,255,255,.85);}
.links{display:flex;flex-wrap:wrap;gap:10px 14px;margin-top:22px;}
.links a{display:inline-flex;align-items:center;gap:6px;font-weight:600;font-size:15px;color:var(--ofe-ink);text-decoration:none;border-bottom:1px solid var(--ofe-green);padding-bottom:2px;}
.links a svg{width:14px;height:14px;}
.dark .links a{color:#fff;}
.faq details{border-bottom:1px solid var(--ofe-border);padding:16px 0;}
.faq summary{cursor:pointer;font:700 17px var(--ofe-font-display);color:var(--ofe-ink);list-style:none;display:flex;justify-content:space-between;gap:16px;}
.faq summary::-webkit-details-marker{display:none;}
.faq summary::after{content:"+";color:var(--ofe-green-deep);font-weight:800;}
.faq details[open] summary::after{content:"–";}
.faq details p{margin:10px 0 0;font-size:15.5px;color:var(--ofe-text-muted);}
.timeline{list-style:none;margin:0;padding:0;}
.timeline li{display:grid;grid-template-columns:64px 1fr;gap:14px;padding:10px 0;border-bottom:1px solid rgba(255,255,255,.12);}
.timeline b{font:800 17px var(--ofe-font-display);color:var(--ofe-green);}
.timeline span{color:rgba(255,255,255,.82);font-size:15.5px;line-height:1.5;}
.dark .quote{background:rgba(255,255,255,.06);}
.dark .quote p{color:#fff;}
.dark .quote cite{color:var(--ofe-green);}
.dates,.box .dates{list-style:none;margin:10px 0 0;padding:0;}
.dates li{display:grid;grid-template-columns:96px 1fr;gap:12px;padding:9px 0;border-bottom:1px solid var(--ofe-border);font-size:15px;color:var(--ofe-text-muted);}
.dates b{font:700 15px var(--ofe-font-display);color:var(--ofe-ink);}
.mt{margin-top:36px;}