@font-face{font-family:"Merriweather";font-style:normal;font-weight:700;font-display:swap;src:url("/fonts/merriweather-latin-700-normal.woff2") format("woff2")}
@font-face{font-family:"Roboto";font-style:normal;font-weight:400;font-display:swap;src:url("/fonts/roboto-latin-ext-400-normal.woff2") format("woff2");unicode-range:U+0100-02AF,U+0304,U+0308,U+0329,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF}
@font-face{font-family:"Roboto";font-style:normal;font-weight:700;font-display:swap;src:url("/fonts/roboto-latin-ext-700-normal.woff2") format("woff2");unicode-range:U+0100-02AF,U+0304,U+0308,U+0329,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF}
@font-face{font-family:"Roboto";font-style:normal;font-weight:400;font-display:swap;src:url("/fonts/roboto-latin-400-normal.woff2") format("woff2");unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+2074,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
@font-face{font-family:"Roboto";font-style:normal;font-weight:500;font-display:swap;src:url("/fonts/roboto-latin-500-normal.woff2") format("woff2");unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+2074,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
@font-face{font-family:"Roboto";font-style:normal;font-weight:700;font-display:swap;src:url("/fonts/roboto-latin-700-normal.woff2") format("woff2");unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+2074,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
/* Layout: Ratgeber-Spalte (max 720px) mit Faktenleiste oben, Abschnitte als nummerierte Schritte nur dort, wo es ein echter Ablauf ist. Akzent = Braunschweiger Löwenrot, Neutraltöne kühl-schiefer. */
:root{
  --bg:#f6f7f9; --surface:#ffffff; --ink:#1b2330; --muted:#566173; --line:#dde2ea;
  --accent:#b3202a; --accent-soft:#fbeaeb; --field-border:#7a8496; --link:#1b2330; --ok:#1f7a4d; --ok-soft:#e6f4ec; --warn:#8a5a00; --warn-soft:#fdf3dc;
  --display:"Merriweather", Georgia, "Times New Roman", serif;
  --body:"Roboto", system-ui, -apple-system, "Segoe UI", Arial, sans-serif;
  --mono:"Roboto", system-ui, -apple-system, "Segoe UI", Arial, sans-serif;
}
@media (prefers-color-scheme: dark){:root:not([data-theme="light"]){
  --bg:#12161d; --surface:#1a2029; --ink:#e7ebf1; --muted:#9aa5b5; --line:#2c3441;
  --accent:#ef6b72; --accent-soft:#3a1d21; --field-border:#6b7688; --link:#e7ebf1; --ok:#5fc791; --ok-soft:#173326; --warn:#e5b65a; --warn-soft:#3a2e14; color-scheme:dark}}
:root[data-theme="dark"]{
  --bg:#12161d; --surface:#1a2029; --ink:#e7ebf1; --muted:#9aa5b5; --line:#2c3441;
  --accent:#ef6b72; --accent-soft:#3a1d21; --field-border:#6b7688; --link:#e7ebf1; --ok:#5fc791; --ok-soft:#173326; --warn:#e5b65a; --warn-soft:#3a2e14; color-scheme:dark}

body{background:var(--bg);color:var(--ink);font-family:var(--body);font-size:17px;line-height:1.65;hyphens:auto;overflow-wrap:break-word}
b,strong{font-weight:700}
.price,.fact b,.res b,.out b,.calc output{font-variant-numeric:tabular-nums;font-weight:700}
a{color:var(--link);text-decoration-color:var(--accent);text-decoration-thickness:2px;text-underline-offset:3px}
a:hover{color:var(--accent)}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,summary:focus-visible{outline:3px solid var(--accent);outline-offset:2px}
.wrap{max-width:760px;margin:0 auto;padding-left:max(16px,env(safe-area-inset-left,0px));padding-right:max(16px,env(safe-area-inset-right,0px))}
.num{font-variant-numeric:tabular-nums}

/* Kopf */
.top{background:var(--surface);border-bottom:1px solid var(--line)}
.wrap.wide{max-width:1120px}
.top .wrap{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:8px 24px;padding-block:12px}
.skip{position:absolute;left:-999px;top:0;background:var(--surface);color:var(--ink);padding:8px 12px;z-index:20}
.skip:focus{left:max(16px,env(safe-area-inset-left,0px))}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--ink);font-family:var(--display);font-weight:700;font-size:1.05rem}
.brand svg{flex:none}
.brand small{display:block;font-family:var(--body);font-weight:400;font-size:.75rem;color:var(--muted);letter-spacing:.02em}
.nav{display:flex;align-items:center;gap:16px;font-size:.92rem;min-width:0;flex:1 1 auto;justify-content:flex-end}
.navscroll{display:flex;gap:18px;overflow-x:auto;white-space:nowrap;scrollbar-width:none;min-width:0;padding-block:6px}
.navscroll::-webkit-scrollbar{display:none}
.navtool{flex:none;background:var(--accent);color:var(--surface)!important;text-decoration:none;font-weight:500;padding:8px 14px;border-radius:8px;white-space:nowrap}
@media (max-width:820px){.nav{flex-basis:100%;justify-content:space-between}.navscroll{gap:14px;mask-image:linear-gradient(90deg,#000 85%,transparent)}}
.navscroll a{color:var(--muted);text-decoration:none}
.navscroll a:hover{color:var(--accent)}

/* Hero */
.hero{padding-block:36px 8px}
.crumb{font-size:.85rem;color:var(--muted)}
.crumb a{color:var(--muted)}
h1{font-family:var(--display);font-weight:700;font-size:clamp(1.8rem,5vw,2.6rem);line-height:1.2;margin:.3em 0 .4em;text-wrap:balance}
.lead{font-size:1.1rem;color:var(--muted);max-width:62ch;margin:0}
.stand{font-size:.85rem;color:var(--muted);margin-top:14px}
.indep{color:var(--ok);font-weight:500;text-decoration:none}
.indep::before{content:"";display:inline-block;width:8px;height:8px;border-radius:50%;background:var(--ok);margin-right:6px;vertical-align:1px}

/* Faktenleiste */
.facts{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;margin-block:28px 8px}
.fact{background:var(--surface);border:1px solid var(--line);border-radius:10px;padding:16px}
.fact b{display:block;font-family:var(--display);font-size:1.45rem;line-height:1.2}
.fact span{display:block;font-size:.9rem;color:var(--muted);margin-top:4px}
.fact em{font-style:normal;font-size:.75rem;color:var(--muted)}
@media (max-width:620px){.facts{grid-template-columns:1fr}}

/* Inhalt */
main section{padding-block:44px 36px;border-bottom:1px solid var(--line)}
h2{font-family:var(--display);font-weight:700;font-size:1.55rem;line-height:1.3;margin:0 0 .6em;text-wrap:balance}
h3{font-family:var(--display);font-weight:700;font-size:1.2rem;line-height:1.35;margin:1.4em 0 .4em}
p,li{max-width:38em}
.toc{background:var(--surface);border:1px solid var(--line);border-radius:10px;padding:16px 20px;margin-top:22px}
.toc strong{font-size:.8rem;letter-spacing:.08em;text-transform:uppercase;color:var(--muted)}
.toc ol{margin:.5em 0 0;padding-left:1.2em;columns:2;column-gap:28px}
.toc li{break-inside:avoid}
@media (max-width:620px){.toc ol{columns:1}}

.tablebox{overflow-x:auto;margin-block:14px}
table{border-collapse:collapse;width:100%;background:var(--surface);font-size:.95rem}
th,td{text-align:left;padding:10px 12px;border-bottom:1px solid var(--line);vertical-align:top}
th{font-size:.8rem;letter-spacing:.05em;text-transform:uppercase;color:var(--muted);font-weight:500}
td.price{white-space:nowrap}
@media (max-width:620px){th,td{padding:8px 8px;font-size:.88rem}td.price{white-space:normal}}
.src{font-size:.8rem;color:var(--muted)}

.steps{list-style:none;padding:0;margin:16px 0;display:grid;gap:12px}
.steps li{display:grid;grid-template-columns:36px 1fr;gap:12px;align-items:start}
.steps li::before{counter-increment:s;content:counter(s);display:grid;place-items:center;width:32px;height:32px;border-radius:50%;background:var(--accent);color:var(--surface);font-weight:700;font-family:var(--mono)}
.steps{counter-reset:s}

.two{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;margin-top:14px}
@media (max-width:620px){.two{grid-template-columns:1fr}}
.place{background:var(--surface);border:1px solid var(--line);border-radius:10px;padding:18px}
.place h3{margin-top:0}
.place dl{display:grid;grid-template-columns:auto 1fr;gap:4px 12px;margin:10px 0 0;font-size:.92rem}
.place dt{color:var(--muted)}
.place dd{margin:0}

.yesno{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;margin-top:14px}
@media (max-width:620px){.yesno{grid-template-columns:1fr}}
.yesno div{border-radius:10px;padding:16px 18px}
.yes{background:var(--ok-soft)} .no{background:var(--accent-soft)}
.yesno h3{margin:0 0 .4em;font-size:1rem}
.yes h3{color:var(--ok)} .no h3{color:var(--accent)}
.yesno ul{margin:0;padding-left:1.1em;font-size:.93rem}

.callout{border-left:4px solid var(--warn);background:var(--warn-soft);padding:12px 16px;border-radius:0 8px 8px 0;margin:16px 0;font-size:.95rem}

/* Rechner */
.calc{background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:20px;margin-top:14px}
.calc label{font-weight:500;display:block}
.calc .row{display:flex;align-items:center;gap:14px;flex-wrap:wrap;margin:8px 0 4px}
.calc input[type=range]{flex:1;min-width:180px;accent-color:var(--accent)}
.calc output{font-family:var(--mono);font-size:1.2rem;min-width:5.5ch}
.res{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px;margin-top:16px}
@media (max-width:620px){.res{grid-template-columns:1fr}}
.res div{border:1px solid var(--line);border-radius:8px;padding:12px}
.res b{display:block;font-family:var(--mono);font-size:1.25rem}
.res span{font-size:.85rem;color:var(--muted)}
.hint{font-size:.85rem;color:var(--muted);margin-top:12px}


details{background:var(--surface);border:1px solid var(--line);border-radius:10px;padding:12px 16px;margin-top:10px}
summary{cursor:pointer;font-weight:500}
details p{margin:.6em 0 .2em}

footer{padding-block:30px 40px;font-size:.85rem;color:var(--muted)}
footer .cols{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}
@media (max-width:620px){footer .cols{grid-template-columns:1fr}}
footer ol{padding-left:1.2em;margin:.4em 0}
footer li{word-break:break-word}
@media (prefers-reduced-motion:reduce){*{scroll-behavior:auto!important}}
html{scroll-behavior:smooth}

/* Themen-Hub */
.hub{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,210px),1fr));gap:12px;margin-top:14px}
@media (max-width:620px){.hub{grid-template-columns:1fr}}
.hub a{display:block;background:var(--surface);border:1px solid var(--line);border-radius:10px;padding:16px 18px;text-decoration:none;color:var(--ink)}
.hub a:hover{border-color:var(--accent)}
.hub b{display:block;font-family:var(--display);font-size:1.05rem;color:var(--accent)}
.hub span{display:block;font-size:.92rem;color:var(--muted);margin-top:4px}
.more{font-weight:500}
/* 5 m³ Skizze */
.figure{background:var(--surface);border:1px solid var(--line);border-radius:10px;padding:16px;margin-top:14px;overflow-x:auto}
.figure svg{display:block;width:100%;min-width:320px;height:auto}
.figure figcaption{font-size:.85rem;color:var(--muted);margin-top:8px}
.navscroll a[aria-current="page"]{color:var(--ink);font-weight:700;box-shadow:inset 0 -2px 0 var(--accent)}

/* Checkliste */
.check{background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:8px 20px 18px;margin-top:14px}
.check fieldset{border:0;padding:0;margin:14px 0 0}
.check legend{font-size:.8rem;letter-spacing:.08em;text-transform:uppercase;color:var(--muted);font-weight:500;padding:0;margin-bottom:6px}
.check label{display:grid;grid-template-columns:24px 1fr;gap:10px;align-items:start;padding:10px 0;border-top:1px solid var(--line);cursor:pointer}
.check input{width:22px;height:22px;margin:3px 0 0;accent-color:var(--ok)}
.check label span{min-width:0}
.check input:checked + span{color:var(--muted)}
.check input:checked + span b{color:var(--ok)}
.score{display:flex;flex-wrap:wrap;align-items:center;gap:8px 16px;margin-top:16px;padding-top:14px;border-top:2px solid var(--line)}
.score #scoreNum{font-family:var(--mono);font-size:1.15rem;font-weight:500}
.score #scoreText{flex:1;min-width:200px;color:var(--muted)}
.score button{font:inherit;font-size:.9rem;background:transparent;color:var(--accent);border:1px solid var(--accent);border-radius:6px;padding:6px 12px;cursor:pointer}

/* Kostenrechner (Tools) */
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}
.badge{display:inline-block;background:var(--warn-soft);color:var(--warn);font-size:.75rem;font-weight:500;letter-spacing:.04em;text-transform:uppercase;padding:2px 8px;border-radius:4px;margin-right:6px}
.tool{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:18px;align-items:start}
@media (max-width:760px){.tool{grid-template-columns:1fr}}
.calc2{background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:6px 18px 18px}
.calc2 fieldset{border:0;padding:0;margin:14px 0 0;min-width:0}
.calc2 legend{font-weight:700;font-family:var(--display);font-size:1rem;margin-bottom:8px;padding:0}
.seg{display:flex;flex-wrap:wrap;gap:6px}
.seg label{position:relative}
.seg input{position:absolute;opacity:0;inset:0}
.seg span{display:block;padding:10px 14px;border:1px solid var(--field-border);border-radius:999px;font-size:.92rem;cursor:pointer;background:var(--bg)}
.seg input:checked + span{background:var(--accent);border-color:var(--accent);color:var(--surface)}
.seg input:focus-visible + span{outline:3px solid var(--accent);outline-offset:2px}
.fieldrow{display:grid;gap:6px;margin-top:10px}
.fieldrow > label{font-size:.88rem;color:var(--muted)}
.fieldrow label.inline input{width:22px;height:22px;accent-color:var(--accent)}
.fieldrow label.inline{display:flex;gap:10px;align-items:center;min-height:44px;color:var(--ink);font-size:.95rem;margin-top:4px}
.unit{display:flex;align-items:center;gap:8px}
.unit input,.calc2 select{font:inherit;padding:10px 12px;min-height:44px;border:1px solid var(--field-border);border-radius:8px;background:var(--bg);color:var(--ink);width:100%;min-width:0}
.unit input{max-width:140px}
.unit span{color:var(--muted)}
.out{display:grid;gap:12px}
.out .vol,.out .range{background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:14px 16px}
.out .range{border-color:var(--accent);background:var(--accent-soft)}
.out span{display:block;font-size:.85rem;color:var(--muted)}
.out b{display:block;font-family:var(--mono);font-size:1.6rem;line-height:1.3}
.out small{display:block;font-size:.8rem;color:var(--muted)}
.opts{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}
.opts div{background:var(--surface);border:1px solid var(--line);border-radius:10px;padding:12px}
.opts b{font-size:1.15rem}
.tips{background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:4px 16px 12px}
.tips h3{font-size:1rem;margin:12px 0 4px}
.tips ul{margin:0;padding-left:1.1em;font-size:.92rem}
.teaser{display:flex;flex-wrap:wrap;gap:12px 20px;align-items:center;justify-content:space-between;background:var(--accent-soft);border-radius:12px;padding:18px 20px;margin-top:14px}
.teaser p{margin:0;max-width:52ch}
.teaser a.btn{background:var(--accent);color:var(--surface);text-decoration:none;font-weight:500;padding:10px 16px;border-radius:8px;white-space:nowrap}

/* Stadtbezirke */
.cols3{columns:3 180px;column-gap:24px;padding-left:1.1em}
.cols3 li{break-inside:avoid}
.chips{display:flex;flex-wrap:wrap;gap:8px}
.chips a{border:1px solid var(--line);background:var(--surface);border-radius:999px;padding:6px 12px;text-decoration:none;color:var(--ink);font-size:.92rem}
.chips a:hover{border-color:var(--accent);color:var(--accent)}
.bzfoot{padding-block:16px 0;margin-top:18px;border-top:1px solid var(--line);line-height:1.9}
.bzgrid{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,320px),1fr));gap:12px;margin-top:14px}
.bz{background:var(--surface);border:1px solid var(--line);border-radius:10px;padding:16px 18px;scroll-margin-top:16px}
.bz h3{margin-top:0}
.bz dl{display:grid;grid-template-columns:auto 1fr;gap:4px 12px;margin:10px 0;font-size:.9rem}
.bz dt{color:var(--muted)} .bz dd{margin:0;min-width:0}
.bzteile{font-size:.93rem;margin:0}
.bzel{font-size:.88rem}
.bzel ul{margin:.3em 0 0;padding-left:1.1em}
.warnline{margin:0;font-size:.88rem;background:var(--warn-soft);color:var(--ink);border-radius:8px;padding:10px 12px}
.out .range b{font-size:1.35rem}
.bzmeta{font-size:.85rem;color:var(--muted);margin:.3em 0 0}
@media (max-width:620px){
  .facts{gap:8px;margin-block:20px 4px}
  .fact{display:flex;flex-wrap:wrap;align-items:baseline;gap:2px 10px;padding:10px 14px}
  .fact b{font-size:1.2rem}
  .fact span{margin-top:0;font-size:.88rem}
  .fact em{flex-basis:100%;font-size:.72rem}
}
.legal p{max-width:42em}