/* ECO Energieberater – Design-System (B2C) */
:root{
  --green:#2e7d32; --green-d:#1b5e20; --green-l:#e8f5e9;
  --ink:#16241c; --muted:#5c6b62; --line:#dde5df;
  --bg:#f6f9f6; --card:#fff; --accent:#f5a623; --accent-d:#d98a0b;
  --max:1140px; --radius:14px; --shadow:0 6px 24px rgba(20,50,30,.08);
  --font:-apple-system,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:var(--font);color:var(--ink);background:var(--bg);line-height:1.55;font-size:16px}
h1,h2,h3{line-height:1.2;margin:0 0 .5em}
h1{font-size:clamp(1.9rem,4vw,3rem);letter-spacing:-.5px}
h2{font-size:clamp(1.4rem,2.6vw,2rem)}
p{margin:0 0 1em}
a{color:var(--green-d);text-decoration:none}
a:hover{text-decoration:underline}
img{max-width:100%}
.wrap{max-width:var(--max);margin:0 auto;padding:0 20px}
.btn{display:inline-block;background:var(--green);color:#fff;padding:.85rem 1.5rem;border-radius:999px;font-weight:600;border:none;cursor:pointer;font-size:1rem;transition:.15s}
.btn:hover{background:var(--green-d);text-decoration:none;transform:translateY(-1px)}
.btn.accent{background:var(--accent);color:#3a2600}
.btn.accent:hover{background:var(--accent-d)}
.btn.ghost{background:transparent;border:1.5px solid var(--green);color:var(--green-d)}
.btn.ghost:hover{background:var(--green-l)}
.btn.lg{padding:1rem 2rem;font-size:1.1rem}

/* Header */
header.site{position:sticky;top:0;z-index:40;background:rgba(255,255,255,.92);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
header.site .wrap{display:flex;align-items:center;gap:1.2rem;height:68px}
.logo{display:flex;align-items:center;gap:.55rem;font-weight:800;font-size:1.18rem;color:var(--ink)}
.logo:hover{text-decoration:none}
.logo .mark{width:34px;height:34px;border-radius:9px;background:linear-gradient(135deg,var(--green),var(--green-d));display:grid;place-items:center;color:#fff;font-size:1.1rem}
nav.main{margin-left:auto;display:flex;gap:1.15rem;align-items:center}
nav.main a{color:var(--ink);font-weight:500;font-size:.95rem;padding:.35rem 0;position:relative;transition:color .15s}
nav.main a:hover{color:var(--green-d);text-decoration:none}
nav.main a.active{color:var(--green-d);font-weight:600}
nav.main a.active::after{content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;background:var(--green);border-radius:2px}
nav.main .nav-div{width:1px;height:22px;background:var(--line);flex:0 0 1px}
nav.main .nav-login{color:var(--muted);font-size:.9rem}
nav.main .nav-login:hover{color:var(--green-d)}
nav.main .btn{color:#fff;font-size:.9rem;padding:.55rem 1.2rem}
nav.main .btn:hover{color:#fff}
.burger{display:none;margin-left:auto;background:none;border:none;font-size:1.6rem;cursor:pointer;color:var(--ink)}
@media(max-width:900px){
  nav.main{position:fixed;inset:68px 0 auto 0;flex-direction:column;background:#fff;padding:.8rem 20px 1.4rem;border-bottom:1px solid var(--line);box-shadow:var(--shadow);gap:0;align-items:stretch;display:none}
  nav.main.open{display:flex}
  nav.main a{padding:.75rem 0;border-bottom:1px solid var(--line)}
  nav.main a.active::after{display:none}
  nav.main .nav-div{display:none}
  nav.main .btn{margin-top:.8rem;text-align:center}
  .burger{display:block}
}

/* Hero */
.hero{background:linear-gradient(160deg,#fff 0%,var(--green-l) 100%);padding:clamp(2.5rem,6vw,5rem) 0}
.hero .grid{display:grid;grid-template-columns:1.1fr .9fr;gap:2.5rem;align-items:center}
.hero .eyebrow{display:inline-block;background:#fff;border:1px solid var(--line);color:var(--green-d);font-weight:600;font-size:.85rem;padding:.35rem .8rem;border-radius:999px;margin-bottom:1rem}
.hero p.lead{font-size:1.2rem;color:var(--muted);max-width:34ch}
.hero .cta-row{display:flex;gap:.8rem;flex-wrap:wrap;margin-top:1.5rem}
.hero .trust{margin-top:1.8rem;display:flex;gap:1.4rem;flex-wrap:wrap;font-size:.9rem;color:var(--muted)}
.hero .trust b{color:var(--ink)}
.hero-card{background:#fff;border-radius:var(--radius);box-shadow:var(--shadow);padding:1.6rem}
.hero-card h3{font-size:1.15rem}
.hero-card ol{margin:0;padding-left:1.2rem}
.hero-card li{margin-bottom:.5rem}
@media(max-width:820px){.hero .grid{grid-template-columns:1fr}}

/* Sections */
section{padding:clamp(2.5rem,5vw,4rem) 0}
.section-head{max-width:60ch;margin-bottom:2rem}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:1.2rem}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:1.4rem}
.card .ic{font-size:1.7rem;margin-bottom:.5rem}
.card h3{font-size:1.12rem}
.card p{color:var(--muted);margin-bottom:0;font-size:.95rem}
.card a.more{display:inline-block;margin-top:.8rem;font-weight:600}
.bg-white{background:#fff}

/* Steps */
.steps{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:1.4rem;counter-reset:s}
.step{position:relative;padding-left:3.2rem}
.step::before{counter-increment:s;content:counter(s);position:absolute;left:0;top:0;width:2.3rem;height:2.3rem;border-radius:50%;background:var(--green);color:#fff;display:grid;place-items:center;font-weight:700}
.step h3{font-size:1.05rem}
.step p{color:var(--muted);font-size:.93rem;margin:0}

/* Pricing */
.price-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:1.2rem}
.price{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:1.6rem;text-align:center}
.price.pop{border:2px solid var(--green);box-shadow:var(--shadow);position:relative}
.price.pop .tag{position:absolute;top:-.8rem;left:50%;transform:translateX(-50%);background:var(--green);color:#fff;font-size:.75rem;padding:.25rem .7rem;border-radius:999px;font-weight:600}
.price .amount{font-size:2.2rem;font-weight:800;color:var(--green-d)}
.price .amount small{font-size:.9rem;color:var(--muted);font-weight:500}
.price ul{list-style:none;padding:0;margin:1rem 0;text-align:left}
.price li{padding:.35rem 0 .35rem 1.6rem;position:relative;font-size:.95rem}
.price li::before{content:"✓";position:absolute;left:0;color:var(--green);font-weight:700}

/* FAQ */
.faq details{background:#fff;border:1px solid var(--line);border-radius:12px;padding:.4rem 1.1rem;margin-bottom:.7rem}
.faq summary{cursor:pointer;font-weight:600;padding:.7rem 0;list-style:none}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";float:right;color:var(--green);font-size:1.3rem;line-height:1}
.faq details[open] summary::after{content:"–"}
.faq details p{color:var(--muted);margin:.2rem 0 .9rem}

/* CTA band */
.band{background:linear-gradient(135deg,var(--green),var(--green-d));color:#fff;border-radius:var(--radius);padding:2.4rem;text-align:center}
.band h2{color:#fff}
.band p{color:#dcefdd;max-width:50ch;margin:0 auto 1.4rem}
.band .btn.accent{color:#3a2600}

/* Prose (Ratgeber/legal) */
.prose{max-width:72ch}
.prose h2{margin-top:2rem}
.prose ul{padding-left:1.2rem}
.prose li{margin-bottom:.4rem}
.prose table{border-collapse:collapse;width:100%;margin:1rem 0;font-size:.95rem}
.prose th,.prose td{border:1px solid var(--line);padding:.5rem .7rem;text-align:left}
.prose th{background:var(--green-l)}
.callout{background:var(--green-l);border-left:4px solid var(--green);border-radius:0 10px 10px 0;padding:1rem 1.2rem;margin:1.2rem 0}
.callout.warn{background:#fff7e6;border-left-color:var(--accent)}

/* Breadcrumb */
.crumb{font-size:.85rem;color:var(--muted);padding:1rem 0 0}
.crumb a{color:var(--muted)}

/* Footer */
footer.site{background:#12251a;color:#c8d6cd;margin-top:2rem;padding:3rem 0 1.5rem}
footer.site .cols{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:1.6rem}
footer.site h4{color:#fff;font-size:1rem;margin:0 0 .8rem}
footer.site a{color:#c8d6cd;display:block;padding:.2rem 0;font-size:.92rem}
footer.site a:hover{color:#fff}
footer.site .logo{color:#fff}
footer .legal{border-top:1px solid #2a4033;margin-top:2rem;padding-top:1.2rem;font-size:.82rem;color:#8fa79a;display:flex;justify-content:space-between;flex-wrap:wrap;gap:.6rem}
@media(max-width:820px){footer.site .cols{grid-template-columns:1fr 1fr}}
@media(max-width:520px){footer.site .cols{grid-template-columns:1fr}}

/* Generator wizard */
.wiz{background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);max-width:760px;margin:0 auto;overflow:hidden}
.wiz .bar{height:6px;background:var(--line)}
.wiz .bar span{display:block;height:100%;background:var(--green);transition:width .3s}
.wiz .body{padding:clamp(1.4rem,3vw,2.4rem)}
.wiz .stepno{color:var(--green-d);font-weight:600;font-size:.85rem;text-transform:uppercase;letter-spacing:.5px}
.wiz h2{margin:.3rem 0 1.2rem}
.field{margin-bottom:1.1rem}
.field label{display:block;font-weight:600;margin-bottom:.35rem;font-size:.95rem}
.field .hint{font-weight:400;color:var(--muted);font-size:.85rem}
.field input,.field select,.field textarea{width:100%;padding:.7rem .8rem;border:1px solid var(--line);border-radius:10px;font-size:1rem;font-family:inherit;background:#fff}
.field input:focus,.field select:focus,.field textarea:focus{outline:2px solid var(--green-l);border-color:var(--green)}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:1rem}
@media(max-width:560px){.grid2{grid-template-columns:1fr}}
.choice{display:grid;gap:.7rem}
.choice label{display:flex;gap:.8rem;align-items:flex-start;border:1.5px solid var(--line);border-radius:12px;padding:1rem;cursor:pointer;transition:.15s}
.choice label:hover{border-color:var(--green)}
.choice input{margin-top:.2rem}
.choice input:checked + .cx{color:var(--green-d)}
.choice label:has(input:checked){border-color:var(--green);background:var(--green-l)}
.choice .cx b{display:block}
.choice .cx span{color:var(--muted);font-size:.9rem}
.wiz .nav{display:flex;justify-content:space-between;gap:1rem;margin-top:1.6rem}
.rec{background:var(--green-l);border-radius:12px;padding:1.2rem;margin-bottom:1.2rem}
.rec b{color:var(--green-d)}
.summary-tbl{width:100%;border-collapse:collapse;font-size:.93rem;margin:.5rem 0 1rem}
.summary-tbl td{padding:.4rem .3rem;border-bottom:1px solid var(--line);vertical-align:top}
.summary-tbl td:first-child{color:var(--muted);width:45%}
.consent{display:flex;gap:.6rem;align-items:flex-start;margin-bottom:.7rem;font-size:.92rem}
.consent input{margin-top:.25rem}
.hidden{display:none}
.note{font-size:.85rem;color:var(--muted)}
.pill-price{display:inline-block;background:var(--green);color:#fff;font-weight:700;padding:.4rem 1rem;border-radius:999px}