/* SDU Systems – Stylesheet */
@font-face{font-family:"Source Sans 3";font-style:normal;font-weight:400;font-display:swap;src:url(fonts/source-sans-3-latin-400-normal.woff2) format("woff2")}
@font-face{font-family:"Source Sans 3";font-style:normal;font-weight:600;font-display:swap;src:url(fonts/source-sans-3-latin-600-normal.woff2) format("woff2")}
@font-face{font-family:"Source Sans 3";font-style:normal;font-weight:700;font-display:swap;src:url(fonts/source-sans-3-latin-700-normal.woff2) format("woff2")}
@font-face{font-family:"Source Serif 4";font-style:normal;font-weight:600;font-display:swap;src:url(fonts/source-serif-4-latin-600-normal.woff2) format("woff2")}
html{-webkit-text-size-adjust:100%}
body{margin:0}
img{max-width:100%}
/* Layout: sachlicher Firmenauftritt – Fließtext, Listen, Linien; keine Effekte */
:root{
  --bg:#FFFFFF;
  --alt:#F5F6F8;
  --ink:#16202E;
  --soft:#525E6D;
  --rule:#D8DDE3;
  --brand:#0B3D7A;
  --brand-ink:#FFFFFF;
  --brand-wash:#EAF0F8;
  --night:#0E2240;
  --night-fg:#E9EDF2;
  --night-soft:#A3AEBC;
  --f:"Source Sans 3","Segoe UI",Arial,sans-serif;
  --s:"Source Serif 4",Georgia,serif;
}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]){
  --bg:#11161D;--alt:#171D26;--ink:#E6EAF0;--soft:#A1ABB8;--rule:#2A323E;--brand:#7FAEEB;--brand-ink:#0E1620;--brand-wash:#1C2737;color-scheme:dark}}
:root[data-theme="dark"]{--bg:#11161D;--alt:#171D26;--ink:#E6EAF0;--soft:#A1ABB8;--rule:#2A323E;--brand:#7FAEEB;--brand-ink:#0E1620;--brand-wash:#1C2737;color-scheme:dark}

*{box-sizing:border-box}
[hidden]{display:none!important}
html{scroll-behavior:smooth;scroll-padding-top:84px}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
body{background:var(--bg);color:var(--ink);font-family:var(--f);font-size:18px;line-height:1.6;-webkit-font-smoothing:antialiased}
body::before{content:"";position:fixed;inset:0 0 auto;height:env(safe-area-inset-top,0px);z-index:70;background:var(--night)}
a{color:var(--brand)}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px}
.wrap{max-width:1160px;margin:0 auto;padding-left:max(24px,env(safe-area-inset-left,0px));padding-right:max(24px,env(safe-area-inset-right,0px))}
h1,h2,h3{margin:0;line-height:1.2;text-wrap:balance}
h1,h2{font-family:var(--s);font-weight:600;letter-spacing:-.01em}
h3{font-size:1.15rem;font-weight:700}
p{margin:0}
.btn{display:inline-block;font:600 1rem/1 var(--f);padding:.9em 1.3em;border-radius:3px;text-decoration:none;border:1px solid var(--brand);cursor:pointer;white-space:nowrap}
.btn-brand{background:var(--brand);color:var(--brand-ink)}
.btn-brand:hover{filter:brightness(1.1)}
.btn-plain{background:transparent;color:var(--brand)}
.btn-plain:hover{background:var(--brand-wash)}
.sec{padding-block:88px;border-top:1px solid var(--rule)}
.sec.alt{background:var(--alt)}
.sec h2{font-size:clamp(1.8rem,3.2vw,2.4rem);margin-bottom:20px}
.intro{color:var(--soft);max-width:64ch}
.two{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:64px}
@media (max-width:880px){.two{grid-template-columns:1fr;gap:36px}.sec{padding-block:60px}}

/* Topbar + Header */
.topbar{background:var(--night);color:var(--night-soft);font-size:.88rem}
.topbar .wrap{display:flex;flex-wrap:wrap;gap:6px 24px;align-items:center;min-height:38px;padding-block:6px}
.topbar b{color:var(--night-fg);font-weight:600}
.topbar .r{margin-left:auto;display:flex;gap:24px}
.topbar a{color:var(--night-soft);text-decoration:none}
.topbar a:hover{color:var(--night-fg)}
@media (max-width:700px){.topbar .r{display:none}}
header.main{position:sticky;top:env(safe-area-inset-top,0px);z-index:60;background:var(--bg);border-bottom:1px solid var(--rule)}
header.main .wrap{display:flex;align-items:center;gap:32px;height:72px}
.logo{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--ink);font-weight:700;font-size:1.25rem;letter-spacing:.01em}
.logo-mark{display:grid;grid-template-columns:repeat(3,6px);gap:3px}
.logo-mark i{width:6px;height:6px;background:currentColor}
.logo-mark i:nth-child(3),.logo-mark i:nth-child(5),.logo-mark i:nth-child(7){background:var(--brand)}
.logo small{font-weight:400;color:var(--soft);font-size:1.1rem}
nav.nav{display:flex;gap:22px;margin-left:auto}
nav.nav a{text-decoration:none;color:var(--ink);font-size:.98rem;white-space:nowrap}
nav.nav a:hover{color:var(--brand)}
header.main .btn{padding:.75em 1.1em;font-size:.95rem}
@media (max-width:1180px){nav.nav{display:none}header.main .btn{margin-left:auto}}


/* Logo */
.brandlogo{display:block;line-height:0;flex:none}
.lg{display:block;height:56px;aspect-ratio:520/315;background:no-repeat left center/contain}
.lg-l{background-image:url(logo.webp)}
.lg-w{background-image:url(logo-white.webp);display:none}
.lg-w.lg-on{display:block}
.foot-logo .lg{height:64px}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]) .lg-l{display:none}:root:not([data-theme="light"]) .lg-w{display:block}}
:root[data-theme="dark"] .lg-l{display:none}
:root[data-theme="dark"] .lg-w{display:block}
@media (max-width:520px){header.main .lg{height:42px}}

/* Hero */
.hero{padding-block:72px 80px}
.hero-grid{display:grid;grid-template-columns:minmax(0,1.25fr) minmax(0,.75fr);gap:64px;align-items:start}
.hero h1{font-size:clamp(2.2rem,4.6vw,3.4rem)}
.hero .lead{font-size:1.2rem;color:var(--soft);margin-top:22px;max-width:52ch}
.hero .ctas{display:flex;flex-wrap:wrap;gap:12px;margin-top:32px}
.facts{margin:36px 0 0;padding:0;list-style:none;display:grid;grid-template-columns:repeat(2,minmax(0,max-content));justify-content:start;gap:8px 36px;border-top:1px solid var(--rule);padding-top:20px}
.facts li{font-size:.98rem}
.facts b{display:block}
.facts span{color:var(--soft)}
@media (max-width:960px){.hero-grid{grid-template-columns:1fr;gap:40px}.hero{padding-block:48px 60px}}
@media (max-width:600px){.facts{grid-template-columns:1fr}}

/* Quick-Check */
.qc{border:1px solid var(--rule);border-radius:4px;background:var(--bg);min-width:0}
.qc-head{padding:18px 22px;border-bottom:1px solid var(--rule);display:flex;justify-content:space-between;gap:12px;align-items:baseline}
.qc-head b{font-size:1.05rem}
.qc-head span{color:var(--soft);font-size:.88rem}
.qc-bar{display:none}
.qc-body{padding:22px}
.qc-q{font-weight:600;margin-bottom:14px}
.qc-opts{display:grid;gap:8px}
.qc-opts button{font:inherit;font-size:1rem;text-align:left;padding:11px 14px;border:1px solid var(--rule);border-radius:3px;background:var(--bg);color:var(--ink);cursor:pointer}
.qc-opts button:hover{border-color:var(--brand);color:var(--brand)}
.qc-back{margin-top:14px;font:inherit;font-size:.92rem;color:var(--soft);background:none;border:0;cursor:pointer;padding:0;text-decoration:underline}
.qc-res h4{margin:0 0 6px;font-size:1.1rem}
.qc-res p{color:var(--soft);font-size:.95rem}
.qc-res ul{margin:12px 0 18px;padding-left:20px}
.qc-res li{margin:3px 0}
.qc-res .btn{display:block;text-align:center}

/* Partner */
.partners{color:var(--soft);font-size:.98rem;padding-block:22px;border-top:1px solid var(--rule)}
.partners b{color:var(--ink);font-weight:600}

/* Leistungen */
.svc{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0 64px;margin-top:40px;border-top:1px solid var(--rule)}
.svc div{padding:22px 0;border-bottom:1px solid var(--rule)}
.svc h3{margin-bottom:6px}
.svc p{color:var(--soft)}
@media (max-width:800px){.svc{grid-template-columns:1fr}}

/* Branchen */
.ind{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:48px 64px;margin-top:40px}
.ind h3{font-size:1.3rem;margin-bottom:8px}
.ind p{color:var(--soft)}
.ind ul{margin:12px 0 0;padding-left:20px;color:var(--ink)}
.ind li{margin:4px 0}
@media (max-width:800px){.ind{grid-template-columns:1fr;gap:36px}}

/* Automatisierung */
.example{border:1px solid var(--rule);border-radius:4px;background:var(--bg);padding:26px 28px}
.example h3{margin-bottom:14px}
.example ol{margin:0;padding-left:22px}
.example li{margin:8px 0}
.example li span{color:var(--soft)}
.example .note{margin-top:16px;padding-top:14px;border-top:1px solid var(--rule);font-size:.95rem;color:var(--soft)}
.uses{columns:2;column-gap:64px;margin-top:40px;padding:0;list-style:none}
.uses li{break-inside:avoid;padding:14px 0;border-top:1px solid var(--rule)}
.uses b{display:block}
.uses span{color:var(--soft)}
@media (max-width:800px){.uses{columns:1}}

/* Warum */
.why{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:36px 64px;margin-top:36px}
.why div{border-top:1px solid var(--rule);padding-top:16px}
.why h3{margin-bottom:6px}
.why p{color:var(--soft)}
@media (max-width:800px){.why{grid-template-columns:1fr;gap:28px}}

/* Eigene Lösungen */
.prod{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;margin-top:36px}
.prod article{border:1px solid var(--rule);border-radius:4px;padding:26px;display:flex;flex-direction:column;min-width:0;background:var(--bg)}
.prod .st{font-size:.85rem;color:var(--soft);border-bottom:1px solid var(--rule);padding-bottom:12px;margin-bottom:14px}
.prod .st b{color:var(--ink)}
.prod h3{font-size:1.3rem;margin-bottom:8px}
.prod p{color:var(--soft)}
.prod ul{margin:14px 0 0;padding-left:20px;font-size:.97rem}
.prod li{margin:4px 0}
.prod a{margin-top:auto;padding-top:18px;font-weight:600}
@media (max-width:960px){.prod{grid-template-columns:1fr}}

/* Listen allgemein */
ul.plain{margin:16px 0 0;padding-left:20px}
ul.plain li{margin:6px 0}
ol.steps{margin:24px 0 0;padding:0;list-style:none;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:32px;counter-reset:s}
ol.steps li{counter-increment:s;border-top:2px solid var(--ink);padding-top:14px}
ol.steps li::before{content:counter(s) ". ";font-weight:700}
ol.steps b{font-weight:700}
ol.steps p{color:var(--soft);margin-top:6px;font-size:.97rem}
@media (max-width:880px){ol.steps{grid-template-columns:1fr 1fr}}
@media (max-width:520px){ol.steps{grid-template-columns:1fr}}

/* Karte */
.mapcard{background:var(--night);border-radius:4px;overflow:hidden;position:relative;min-width:0}
.map{display:block;width:100%;height:auto}
.map .ringline{fill:none;stroke:rgba(127,174,235,.28);stroke-width:1;stroke-dasharray:2 5}
.map .ringlbl{font:600 11px var(--f);fill:rgba(163,174,188,.9);letter-spacing:.04em}
.map .isar{fill:none;stroke:#3C6E9E;stroke-width:5;stroke-linecap:round;stroke-linejoin:round;opacity:.7}
.map .road{fill:none;stroke:rgba(233,237,242,.28);stroke-width:2;stroke-linejoin:round}
.map .park{fill:rgba(90,160,110,.16);stroke:rgba(90,160,110,.35);stroke-width:1}
.map .town circle{fill:#A3AEBC}
.map .town text{font:400 13px var(--f);fill:rgba(233,237,242,.75)}
.map .town.major text{font-size:14.5px;fill:rgba(233,237,242,.92)}
.map .home text{font:700 15px var(--f);fill:#fff}
.map .home .sub{font:600 11px var(--f);fill:#9CC3F2;letter-spacing:.04em}
.mapnote{position:absolute;left:16px;bottom:12px;font-size:.8rem;color:var(--night-soft)}

/* Über uns */
.founder{display:flex;gap:16px;align-items:center;margin-top:28px;padding-top:20px;border-top:1px solid var(--rule)}
.founder .ph{width:64px;height:64px;border-radius:50%;background:var(--alt);border:1px solid var(--rule);display:grid;place-items:center;font-weight:700;color:var(--soft)}
.founder span{display:block;color:var(--soft);font-size:.95rem}

/* FAQ */
.faq details{border-bottom:1px solid var(--rule)}
.faq details:first-of-type{border-top:1px solid var(--rule)}
.faq summary{cursor:pointer;padding:18px 0;font-weight:600;font-size:1.05rem}
.faq details p{color:var(--soft);padding:0 0 20px;max-width:70ch}

/* Kontakt */
.contact dl{margin:24px 0 0;display:grid;grid-template-columns:130px 1fr;gap:0}
.contact dt,.contact dd{padding:12px 0;border-bottom:1px solid var(--rule);margin:0}
.contact dt{color:var(--soft)}
.contact dd{font-weight:600;overflow-wrap:anywhere}
.contact dd button{margin-left:10px;font:inherit;font-size:.82rem;font-weight:400;color:var(--soft);background:none;border:0;text-decoration:underline;cursor:pointer;padding:0}
.contact .remote{margin-top:24px;color:var(--soft)}
form.msg{border:1px solid var(--rule);border-radius:4px;background:var(--bg);padding:28px;display:grid;gap:16px;min-width:0;align-self:start}
form.msg h3{font-size:1.25rem}
.field{display:grid;gap:6px}
.field label,.radio legend{font-size:.92rem;font-weight:600}
.field input,.field textarea,.field select{font:inherit;font-size:1rem;color:var(--ink);background:var(--bg);border:1px solid var(--rule);border-radius:3px;padding:10px 12px;width:100%}
.field textarea{min-height:110px;resize:vertical}
.field input:focus,.field textarea:focus,.field select:focus{outline:2px solid var(--brand);outline-offset:-1px}
.radio{border:0;padding:0;margin:0;display:flex;flex-wrap:wrap;gap:6px 24px}
.radio legend{margin-bottom:6px;width:100%}
.radio label{display:flex;gap:8px;align-items:center}
.row2{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.consent{display:flex;gap:10px;font-size:.88rem;color:var(--soft);align-items:flex-start;line-height:1.5}
.consent input{margin-top:4px}
.form-ok{background:var(--brand-wash);padding:12px 14px;font-size:.95rem}
@media (max-width:520px){.row2{grid-template-columns:1fr}.contact dl{grid-template-columns:1fr}.contact dt{border-bottom:0;padding-bottom:0}form.msg{padding:20px}}

/* Rechtstexte */
.legal-page{padding-block:56px 96px}
.legal-page .wrap{max-width:820px}
.legal-page .back{margin-bottom:28px}
.legal-page .back a{text-decoration:none}
.legal-page h1{font-size:clamp(2rem,4vw,2.8rem);margin-bottom:12px}
.legal-page h2{font-family:var(--f);font-size:1.15rem;font-weight:700;letter-spacing:0;margin:36px 0 8px}
.legal-page p,.legal-page li{color:var(--soft)}
.legal-page p+p{margin-top:12px}
.legal-page ul{margin:10px 0 12px;padding-left:22px}
.legal-page li{margin:4px 0}
.legal-page .stand{font-size:.92rem}

/* Footer */
footer{background:var(--night);color:var(--night-soft);font-size:.95rem}
.foot{display:grid;grid-template-columns:1.3fr 1fr 1fr 1fr;gap:36px;padding-block:56px 40px}
.foot .logo{color:var(--night-fg)}
.foot .logo small{color:var(--night-soft)}
.foot h4{margin:0 0 12px;color:var(--night-fg);font-size:1rem}
.foot ul{list-style:none;padding:0;margin:0;display:grid;gap:6px}
.foot a{color:var(--night-soft);text-decoration:none}
.foot a:hover{color:var(--night-fg);text-decoration:underline}
.foot address{font-style:normal;line-height:1.7;margin-top:14px}
.legal{display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;padding-block:18px 28px;border-top:1px solid rgba(255,255,255,.12);font-size:.85rem}
@media (max-width:900px){.foot{grid-template-columns:1fr 1fr}}
@media (max-width:480px){.foot{grid-template-columns:1fr}}