/* S & T Gebäudedienste – gemeinsames Stylesheet */
:root{--ink:#10222B;--muted:#4A5F69;--bg:#FFFFFF;--soft:#F2F6F6;--card:#FFFFFF;--line:#DCE5E7;--brand:#0F4C5C;--brand-ink:#FFFFFF;--accent:#3CC6AE;--accent-ink:#06272E;--ring:#0F4C5C;--shadow:0 22px 44px -30px rgba(15,76,92,.55);--logo-text:#0F4C5C;color-scheme:light}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]){--ink:#E8F0F2;--muted:#A5B8BF;--bg:#0C1A20;--soft:#112630;--card:#132B35;--line:#24404A;--brand:#3CC6AE;--brand-ink:#06272E;--accent:#3CC6AE;--accent-ink:#06272E;--ring:#3CC6AE;--shadow:0 22px 44px -30px rgba(0,0,0,.85);--logo-text:#FFFFFF;color-scheme:dark}}
:root[data-theme="dark"]{--ink:#E8F0F2;--muted:#A5B8BF;--bg:#0C1A20;--soft:#112630;--card:#132B35;--line:#24404A;--brand:#3CC6AE;--brand-ink:#06272E;--accent:#3CC6AE;--accent-ink:#06272E;--ring:#3CC6AE;--shadow:0 22px 44px -30px rgba(0,0,0,.85);--logo-text:#FFFFFF;color-scheme:dark}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:96px}
body{margin:0;background:var(--bg);color:var(--ink);font:400 17px/1.65 Figtree,system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;-webkit-font-smoothing:antialiased}
h1,h2,h3,h4{line-height:1.12;margin:0;letter-spacing:-.025em;font-weight:800}
h1{font-size:clamp(2.3rem,5.4vw,4rem)}
h2{font-size:clamp(1.7rem,3.2vw,2.5rem)}
h3{font-size:1.12rem;letter-spacing:-.01em;font-weight:700}
p{margin:0}
a{color:inherit}
:focus-visible{outline:3px solid var(--ring);outline-offset:3px;border-radius:6px}
.skip{position:absolute;left:-9999px;top:0;z-index:100;background:var(--brand);color:var(--brand-ink);padding:.7rem 1rem;border-radius:0 0 10px 0}
.skip:focus{left:0}
.wrap{width:min(1160px,100% - 2.5rem);margin-inline:auto}
section{padding:clamp(3.5rem,8vw,6.5rem) 0}
.soft{background:var(--soft)}
.eyebrow{display:inline-flex;align-items:center;gap:.55rem;font-size:.78rem;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--brand);margin-bottom:.9rem}
.eyebrow::before{content:"";width:22px;height:2px;border-radius:2px;background:var(--accent)}
.head{margin-bottom:2.6rem;max-width:720px}
.head.center{margin-inline:auto;text-align:center}
.head.center .eyebrow{justify-content:center}
.sub{color:var(--muted);max-width:60ch;margin-top:.8rem;font-size:1.05rem}
.head.center .sub{margin-inline:auto}

/* Header */
header.site{position:sticky;top:0;z-index:40;background:color-mix(in srgb,var(--bg) 88%,transparent);backdrop-filter:saturate(1.4) blur(12px);-webkit-backdrop-filter:saturate(1.4) blur(12px);border-bottom:1px solid var(--line);padding-top:env(safe-area-inset-top,0px)}
.bar{display:flex;align-items:center;justify-content:space-between;gap:1rem;height:72px}
.logo{display:flex;align-items:center;gap:.6rem;text-decoration:none;font-weight:600;letter-spacing:-.02em;line-height:1.1}
.logo b{font-weight:800;color:var(--logo-text)}
.logo svg{flex:none}
.logo small{display:block;font-weight:600;font-size:.72rem;color:var(--muted);letter-spacing:.02em}
nav.main ul{display:flex;align-items:center;gap:.25rem;list-style:none;margin:0;padding:0}
nav.main a{display:block;padding:.55rem .85rem;border-radius:10px;text-decoration:none;font-weight:600;font-size:.96rem;color:var(--muted);transition:color .2s,background .2s}
nav.main a:hover{color:var(--ink);background:var(--soft)}
nav.main a[aria-current="page"]{color:var(--brand);background:color-mix(in srgb,var(--accent) 16%,transparent)}
nav.main a.btn{display:inline-flex;align-items:center;justify-content:center;margin-left:.6rem;color:var(--brand-ink);background:var(--brand);padding:0 1.2rem;min-height:44px;line-height:1}
.menu{display:none;min-width:46px;min-height:46px;align-items:center;justify-content:center;background:none;border:1px solid var(--line);border-radius:12px;color:var(--ink);cursor:pointer}
@media(max-width:900px){
.menu{display:inline-flex}
nav.main{position:absolute;left:0;right:0;top:100%;display:none;background:var(--bg);border-bottom:1px solid var(--line);padding:.8rem 1.25rem 1.4rem;box-shadow:var(--shadow)}
nav.main.open{display:block}
nav.main ul{flex-direction:column;align-items:stretch;gap:.2rem}
nav.main a{padding:.85rem 1rem}
nav.main a.btn{display:flex;margin:.8rem 0 0}
}

/* Buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:.55rem;min-height:50px;padding:0 1.5rem;border-radius:12px;border:2px solid var(--brand);background:var(--brand);color:var(--brand-ink);font:700 1rem Figtree,system-ui,sans-serif;text-decoration:none;cursor:pointer;transition:transform .18s,box-shadow .18s,background .18s,border-color .18s}
.btn:hover{transform:translateY(-2px);box-shadow:var(--shadow)}
.btn svg{width:18px;height:18px;transition:transform .2s}
.btn:hover svg{transform:translateX(3px)}
.btn.ghost{background:transparent;color:var(--ink);border-color:var(--line)}
.btn.ghost:hover{border-color:var(--ink)}
.btn.white{background:#fff;border-color:#fff;color:#0B3440}
.btn.line{background:transparent;border-color:rgba(255,255,255,.35);color:#fff}
.btn.line:hover{border-color:#fff}
.btn[disabled]{opacity:.7;cursor:wait;transform:none}

/* Startseite: Winter-Hero */
.hero{position:relative;overflow:hidden;isolation:isolate;color:#fff;padding:clamp(4rem,9vw,7.5rem) 0 clamp(7rem,13vw,10rem);background:radial-gradient(900px 420px at 88% -12%,rgba(60,198,174,.38),transparent 62%),radial-gradient(700px 380px at -8% 110%,rgba(255,255,255,.08),transparent 60%),linear-gradient(165deg,#072630 0%,#0F4C5C 58%,#16606F 100%)}
#snow{position:absolute;inset:0;width:100%;height:100%;z-index:-1;pointer-events:none}
.hero .wrap{position:relative;z-index:1}
.hero-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:3.5rem;align-items:center}
.tag{display:inline-flex;align-items:center;gap:.5rem;padding:.42rem .9rem;border-radius:999px;background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.2);font-size:.86rem;font-weight:600;margin-bottom:1.5rem}
.tag svg{width:16px;height:16px;color:var(--accent)}
.hero h1{margin-bottom:1.3rem}
.hero h1 em{font-style:normal;color:#3CC6AE}
.hero .lead{color:rgba(255,255,255,.84);font-size:1.15rem;max-width:54ch;margin-bottom:2.2rem}
.cta{display:flex;flex-wrap:wrap;gap:.8rem}
.glass{position:relative;overflow:hidden;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.18);border-radius:22px;padding:2rem;backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px)}
.glass::before{content:"";position:absolute;inset:0 0 auto 0;height:5px;background:linear-gradient(90deg,#3CC6AE,#fff,#3CC6AE);background-size:200% 100%;animation:sh 4s linear infinite}
@keyframes sh{to{background-position:200% 0}}
.glass h2{font-size:1.15rem;margin-bottom:1.3rem}
.checks{list-style:none;margin:0;padding:0;display:grid;gap:1.15rem}
.checks li{display:grid;grid-template-columns:30px 1fr;gap:.85rem}
.checks b{display:block;line-height:1.35}
.checks span{display:block;margin-top:.1rem;color:rgba(255,255,255,.74);font-size:.95rem;line-height:1.45}
.tick{width:30px;height:30px;border-radius:50%;background:#3CC6AE;color:#06272E;display:grid;place-items:center}
.tick svg{width:16px;height:16px;stroke-width:3.2}
.bank{position:absolute;left:0;right:0;bottom:-1px;width:100%;height:clamp(46px,7vw,92px);color:var(--bg);z-index:0;display:block}
@media(max-width:900px){.hero-grid{grid-template-columns:1fr;gap:2.4rem}}

/* Unterseiten: Seitenkopf */
.page-head{position:relative;overflow:hidden;isolation:isolate;color:#fff;padding:clamp(3rem,7vw,5rem) 0 clamp(3.4rem,7vw,5.4rem);background:radial-gradient(700px 320px at 92% -20%,rgba(60,198,174,.32),transparent 62%),linear-gradient(165deg,#072630,#0F4C5C)}
.page-head::after{content:"";position:absolute;width:420px;height:420px;right:-140px;bottom:-260px;border-radius:50%;border:60px solid rgba(255,255,255,.04);z-index:-1}
.page-head .eyebrow{color:#3CC6AE}
.page-head p{color:rgba(255,255,255,.82);max-width:60ch;margin-top:1rem;font-size:1.12rem}
.page-head h1{font-size:clamp(2.1rem,4.6vw,3.3rem)}

/* Karten */
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:1.2rem}
.grid2{display:grid;grid-template-columns:repeat(2,1fr);gap:1.2rem}
@media(max-width:960px){.grid3{grid-template-columns:repeat(2,1fr)}}
@media(max-width:620px){.grid3,.grid2{grid-template-columns:1fr}}
.card{position:relative;display:block;background:var(--card);border:1px solid var(--line);border-radius:18px;padding:1.8rem;text-decoration:none;transition:transform .25s,box-shadow .25s,border-color .25s}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:color-mix(in srgb,var(--accent) 55%,var(--line))}
.ic{width:52px;height:52px;border-radius:14px;display:grid;place-items:center;background:color-mix(in srgb,var(--accent) 16%,transparent);color:var(--brand);margin-bottom:1.1rem;transition:transform .3s}
.ic svg{width:26px;height:26px}
.card:hover .ic{transform:scale(1.08) rotate(-5deg)}
.card h3{margin-bottom:.45rem}
.card p{color:var(--muted);font-size:.97rem;line-height:1.55}
.more{display:inline-flex;align-items:center;gap:.35rem;margin-top:1.1rem;font-weight:700;font-size:.92rem;color:var(--brand)}
.more svg{width:16px;height:16px;transition:transform .2s}
.card:hover .more svg{transform:translateX(4px)}
.note{display:inline-block;margin-top:.5rem;font-size:.82rem;color:var(--muted);font-style:italic}

/* Warum */
.why{display:grid;grid-template-columns:repeat(2,1fr);gap:1.2rem}
.why .item{display:grid;grid-template-columns:52px 1fr;gap:1.1rem;align-items:start;background:var(--card);border:1px solid var(--line);border-radius:18px;padding:1.5rem}
.why .ic{margin:0}
.why h3{margin-bottom:.3rem}
.why p{color:var(--muted);font-size:.97rem}
@media(max-width:700px){.why{grid-template-columns:1fr}}

/* Ablauf */
.steps{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(3,1fr);gap:1.2rem;counter-reset:s}
.steps li{counter-increment:s;position:relative;background:var(--card);border:1px solid var(--line);border-radius:18px;padding:1.7rem}
.steps li::before{content:counter(s);display:grid;place-items:center;width:44px;height:44px;border-radius:12px;background:var(--brand);color:var(--brand-ink);font-weight:800;font-size:1.1rem;margin-bottom:1.1rem}
.steps h3{margin-bottom:.4rem}
.steps p{color:var(--muted);font-size:.97rem}
@media(max-width:800px){.steps{grid-template-columns:1fr}}

/* Leistungen im Detail */
.svc-list{display:grid;gap:1.2rem}
.svc-row{display:grid;grid-template-columns:72px 1fr auto;gap:1.6rem;align-items:start;background:var(--card);border:1px solid var(--line);border-radius:20px;padding:2rem;transition:border-color .25s,box-shadow .25s}
.svc-row:hover,.svc-row:target{border-color:color-mix(in srgb,var(--accent) 55%,var(--line));box-shadow:var(--shadow)}
.svc-row .ic{width:72px;height:72px;border-radius:18px;margin:0}
.svc-row .ic svg{width:34px;height:34px}
.svc-row h2{font-size:1.45rem;margin-bottom:.45rem}
.svc-row .short{font-weight:600;margin-bottom:.5rem}
.svc-row .long{color:var(--muted)}
.svc-row .btn{min-height:44px;font-size:.93rem;white-space:nowrap}
@media(max-width:760px){.svc-row{grid-template-columns:1fr;gap:1rem;padding:1.5rem}.svc-row .ic{width:60px;height:60px}}

/* Über uns */
.about{display:grid;grid-template-columns:1fr 1fr;gap:3.5rem;align-items:start}
.about .txt p{color:var(--muted);font-size:1.08rem}
.about .txt p+p{margin-top:1.1rem}
.quote{position:relative;background:var(--soft);border:1px solid var(--line);border-radius:22px;padding:2.2rem;font-size:1.25rem;font-weight:700;line-height:1.45;letter-spacing:-.01em}
.quote .qm{display:block;width:38px;height:38px;color:var(--accent);margin-bottom:.9rem}
.quote span{display:block;margin-top:1rem;font-size:.92rem;font-weight:600;color:var(--muted)}
@media(max-width:820px){.about{grid-template-columns:1fr;gap:2rem}}

/* FAQ */
.faq{max-width:820px;margin-inline:auto;display:grid;gap:.8rem}
.faq details{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:0 1.4rem;transition:border-color .2s,box-shadow .2s}
.faq details[open]{border-color:color-mix(in srgb,var(--accent) 55%,var(--line));box-shadow:var(--shadow)}
.faq summary{cursor:pointer;list-style:none;display:flex;justify-content:space-between;align-items:center;gap:1rem;font-weight:700;padding:1.2rem 0}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";flex:none;display:grid;place-items:center;width:32px;height:32px;border-radius:10px;background:var(--soft);color:var(--brand);font-size:1.3rem;line-height:1;transition:transform .25s}
.faq details[open] summary::after{transform:rotate(45deg)}
.faq details p{color:var(--muted);padding-bottom:1.3rem;max-width:65ch;animation:op .35s ease}
@keyframes op{from{opacity:0;transform:translateY(-6px)}}

/* CTA-Band */
.band{position:relative;overflow:hidden;border-radius:26px;padding:clamp(2.2rem,5vw,3.6rem);color:#fff;background:radial-gradient(600px 300px at 100% 0,rgba(60,198,174,.35),transparent 60%),linear-gradient(135deg,#0F4C5C,#072630);display:flex;align-items:center;justify-content:space-between;gap:2rem;flex-wrap:wrap}
.band h2{font-size:clamp(1.6rem,3vw,2.2rem)}
.band p{color:rgba(255,255,255,.8);margin-top:.6rem;max-width:52ch}

/* Kontakt */
.contact{display:grid;grid-template-columns:.9fr 1.1fr;gap:3rem;align-items:start}
.info{display:grid;gap:.9rem}
.info .row{display:grid;grid-template-columns:48px 1fr;gap:1rem;align-items:center;background:var(--card);border:1px solid var(--line);border-radius:16px;padding:1rem 1.1rem}
.info .ic{width:48px;height:48px;border-radius:12px;margin:0}
.info .ic svg{width:22px;height:22px}
.info small{display:block;color:var(--muted);font-size:.82rem;font-weight:600}
.info b,.info a{font-weight:700;text-decoration:none;word-break:break-word}
.info a:hover{text-decoration:underline}
form.anfrage{display:grid;gap:1.1rem;background:var(--card);border:1px solid var(--line);border-radius:22px;padding:2rem;box-shadow:var(--shadow)}
form.anfrage h2{font-size:1.4rem}
label{display:grid;gap:.4rem;font-weight:600;font-size:.94rem}
input,select,textarea{width:100%;min-height:50px;padding:.75rem .95rem;font:inherit;color:var(--ink);background:var(--bg);border:1.5px solid var(--line);border-radius:12px;transition:border-color .2s,box-shadow .2s}
input:hover,select:hover,textarea:hover{border-color:var(--muted)}
input:focus,select:focus,textarea:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 4px color-mix(in srgb,var(--accent) 22%,transparent)}
textarea{min-height:130px;resize:vertical}
.frow{display:grid;grid-template-columns:1fr 1fr;gap:1.1rem}
.chk{display:flex;align-items:flex-start;gap:.7rem;font-weight:400;font-size:.9rem;color:var(--muted)}
.chk input{width:22px;height:22px;min-height:22px;margin-top:2px;flex:none;accent-color:var(--brand)}
.err{color:#B3261E;font-size:.88rem;font-weight:600}
@media(prefers-color-scheme:dark){:root:not([data-theme="light"]) .err{color:#FF8A80}}
:root[data-theme="dark"] .err{color:#FF8A80}
.ok{display:none;background:var(--soft);border:1px solid var(--accent);border-left-width:6px;border-radius:12px;padding:1.1rem 1.25rem}
.ok.show{display:block}
.hp{position:absolute;left:-9999px}
@media(max-width:880px){.contact,.frow{grid-template-columns:1fr}}

/* Rechtstexte */
.prose{max-width:72ch}
.prose h2{font-size:1.35rem;margin:2rem 0 .6rem}
.prose p{color:var(--muted)}
.prose p+p{margin-top:.8rem}

/* Footer */
footer.site{background:#061A20;color:rgba(255,255,255,.7);padding:3.6rem 0 2rem;font-size:.95rem;padding-bottom:calc(2rem + env(safe-area-inset-bottom,0px))}
.fgrid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:2rem}
footer.site .logo{--logo-text:#FFFFFF;--accent:#3CC6AE;color:#fff;margin-bottom:1rem}
footer.site .logo small{color:rgba(255,255,255,.55)}
footer.site h4{color:#fff;font-size:.95rem;margin-bottom:.9rem;letter-spacing:0}
footer.site ul{list-style:none;margin:0;padding:0;display:grid;gap:.5rem}
footer.site a{text-decoration:none}
footer.site a:hover{color:#fff;text-decoration:underline}
.fbot{display:flex;flex-wrap:wrap;justify-content:space-between;gap:1rem;margin-top:2.6rem;padding-top:1.4rem;border-top:1px solid rgba(255,255,255,.1);font-size:.88rem}
@media(max-width:860px){.fgrid{grid-template-columns:1fr 1fr}}
@media(max-width:520px){.fgrid{grid-template-columns:1fr}}

/* Animationen */
#prog{position:fixed;top:0;left:0;height:3px;width:0;background:var(--accent);z-index:60}
.js .rv{opacity:0;transform:translateY(22px);transition:opacity .8s cubic-bezier(.2,.7,.2,1),transform .8s cubic-bezier(.2,.7,.2,1)}
.js .rv.in{opacity:1;transform:none}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important;animation:none!important}.js .rv{opacity:1!important;transform:none!important}#snow{display:none}}

[hidden]{display:none!important}

/* Einsatzgebiet */
.area{display:grid;grid-template-columns:1fr 1.15fr;gap:3rem;align-items:center}
.places{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap;gap:.55rem}
.places li{padding:.5rem .95rem;border-radius:999px;background:var(--card);border:1px solid var(--line);font-weight:600;font-size:.94rem}
.map{position:relative;height:400px;border-radius:22px;overflow:hidden;border:1px solid var(--line);background:linear-gradient(160deg,color-mix(in srgb,var(--accent) 14%,var(--card)),var(--card));z-index:0}
.map-ph{height:100%;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:1rem;padding:2rem;text-align:center}
.map-ph .ic{margin:0}
.map-ph p{color:var(--muted);max-width:34ch;font-size:.95rem}
.map-ph p b{color:var(--ink)}
@media(max-width:860px){.area{grid-template-columns:1fr;gap:2rem}.map{height:320px}}

/* Angebots-Assistent */
.wiz-top h2{margin-bottom:.2rem}
.wiz-steps{list-style:none;margin:.9rem 0 .7rem;padding:0;display:flex;flex-wrap:wrap;gap:.5rem 1.1rem;counter-reset:w}
.wiz-steps li{counter-increment:w;display:flex;align-items:center;gap:.45rem;font-size:.84rem;font-weight:600;color:var(--muted)}
.wiz-steps li::before{content:counter(w);display:grid;place-items:center;width:26px;height:26px;border-radius:50%;background:var(--soft);border:1px solid var(--line);font-size:.78rem;font-weight:700;transition:background .2s,color .2s}
.wiz-steps li.on{color:var(--ink)}
.wiz-steps li.on::before{background:var(--brand);border-color:var(--brand);color:var(--brand-ink)}
.wiz-steps li.done::before{content:"\2713"}
.wiz-bar{height:5px;border-radius:9px;background:var(--soft);overflow:hidden}
.wiz-bar i{display:block;height:100%;width:25%;border-radius:9px;background:var(--accent);transition:width .4s cubic-bezier(.2,.7,.2,1)}
fieldset.step{border:0;margin:0;padding:0;min-width:0;display:grid;gap:1rem}
.js fieldset.step{display:none}
.js fieldset.step.on{display:grid;animation:op .35s ease}
fieldset.step legend{float:left;width:100%;padding:0;font-size:1.15rem;font-weight:700;letter-spacing:-.01em}
fieldset.step legend+*{clear:both}
.hint{margin-top:-.6rem;color:var(--muted);font-size:.88rem}
.opt{color:var(--muted);font-weight:500}
.choices{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:.6rem}
label.choice{display:block;position:relative;cursor:pointer}
.choice input{position:absolute;opacity:0;width:1px;height:1px;min-height:0}
.choice span{display:flex;align-items:center;gap:.65rem;min-height:52px;padding:.7rem .9rem;border:1.5px solid var(--line);border-radius:12px;font-weight:600;font-size:.94rem;line-height:1.3;transition:border-color .2s,background .2s}
.choice span::before{content:"";flex:none;width:20px;height:20px;border-radius:6px;border:2px solid var(--line);transition:background .2s,border-color .2s,box-shadow .2s}
.choice input[type=radio]+span::before{border-radius:50%}
.choice:hover span{border-color:var(--muted)}
.choice input:checked+span{border-color:var(--accent);background:color-mix(in srgb,var(--accent) 12%,transparent)}
.choice input:checked+span::before{background:var(--accent);border-color:var(--accent);box-shadow:inset 0 0 0 3px var(--card)}
.choice input:focus-visible+span{outline:3px solid var(--ring);outline-offset:2px}
.recap{background:var(--soft);border-radius:12px;padding:.9rem 1.05rem;font-size:.9rem;color:var(--muted);line-height:1.55}
.recap b{color:var(--ink)}
.recap:empty{display:none}
.wiz-nav{display:flex;gap:.8rem;flex-wrap:wrap}
#wiz-next,#wiz-send{margin-left:auto}
@media(max-width:520px){.choices{grid-template-columns:1fr}}