:root{--bg:#f4f6f9;--card:#fff;--text:#1d2733;--muted:#6b7785;--line:#dde3ea;--accent:#1e4a7e;--accent-t:#fff;--ok:#1f7a4d;--bad:#b3261e;--warn:#8a5a00;--hover:#eef3f9}
@media (prefers-color-scheme:dark){:root{--bg:#12161c;--card:#1b222b;--text:#e6ebf1;--muted:#93a0ae;--line:#2b3541;--accent:#5b9bdc;--accent-t:#0b1520;--ok:#4cc38a;--bad:#ff8a80;--warn:#e8b34a;--hover:#232d39}}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--text);font:15px/1.45 system-ui,-apple-system,"Segoe UI",Roboto,sans-serif}
a{color:var(--accent)}
.top{display:flex;flex-wrap:wrap;align-items:center;gap:8px 24px;padding:10px 16px;background:var(--card);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:5}
.brand{font-weight:700;text-decoration:none;color:var(--text)}
nav{display:flex;flex-wrap:wrap;gap:4px}
nav a{padding:6px 12px;border-radius:6px;text-decoration:none;color:var(--text)}
nav a:hover{background:var(--hover)} nav a.on{background:var(--accent);color:var(--accent-t)}
.wrap{max-width:1050px;margin:0 auto;padding:16px}
h1{font-size:1.5rem;margin:.2em 0 .6em} h2{font-size:1.15rem;margin:1.4em 0 .5em} h3{margin:.2em 0 .4em;font-size:1rem}
.head{display:flex;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:8px 16px}
.card{background:var(--card);border:1px solid var(--line);border-radius:10px;padding:16px;margin:12px 0}
.card.narrow{max-width:380px;margin:8vh auto}
.cols{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:16px}
pre{margin:0;font:inherit;white-space:pre-wrap} .pre{white-space:pre-wrap}
dl{margin:0;display:grid;grid-template-columns:auto 1fr;gap:2px 14px} dt{color:var(--muted)} dd{margin:0}
label{display:block;font-size:.88rem;color:var(--muted);margin:8px 0 0}
label.inline{display:inline-flex;align-items:center;gap:6px;margin:0}
label.check{display:flex;gap:8px;align-items:center;color:var(--text)}
input,select,textarea{display:block;width:100%;margin-top:3px;padding:8px 10px;font:inherit;color:var(--text);background:var(--bg);border:1px solid var(--line);border-radius:6px}
input[type=checkbox]{width:auto;margin:0} label.inline input{width:auto;margin:0}
textarea{resize:vertical} input:focus,select:focus,textarea:focus{outline:2px solid var(--accent);outline-offset:-1px}
.grid{display:grid;grid-template-columns:1fr 1fr;gap:0 16px} .span2{grid-column:span 2}
@media (max-width:640px){.grid{grid-template-columns:1fr}.span2{grid-column:auto}}
.btn{display:inline-block;padding:8px 14px;border:1px solid var(--line);border-radius:6px;background:var(--card);color:var(--text);font:inherit;cursor:pointer;text-decoration:none}
.btn:hover{background:var(--hover)} .btn.primary{background:var(--accent);color:var(--accent-t);border-color:var(--accent)}
.btn.danger{color:var(--bad);border-color:var(--bad)} .btn.ghost{border-color:transparent;background:none}
.actions{display:flex;flex-wrap:wrap;gap:8px;align-items:center;margin-top:14px} .head .actions{margin:0}
form.inline{display:inline-flex;flex-wrap:wrap;gap:8px;align-items:center;margin:0} form.inline input{width:auto}
.msg{padding:10px 14px;border-radius:6px;margin:0 0 12px;border:1px solid var(--line);background:var(--card)}
.msg.ok{border-color:var(--ok);color:var(--ok)} .msg.err{border-color:var(--bad);color:var(--bad)} .msg.warn{border-color:var(--warn);color:var(--warn)}
.muted{color:var(--muted)}
.filter{display:flex;flex-wrap:wrap;gap:8px;margin:8px 0 14px} .filter input,.filter select{width:auto;margin:0;flex:1 1 150px}
.tablewrap{overflow-x:auto;background:var(--card);border:1px solid var(--line);border-radius:10px}
table{border-collapse:collapse;width:100%} th,td{padding:9px 12px;text-align:left;border-bottom:1px solid var(--line);vertical-align:top}
th{font-size:.8rem;text-transform:uppercase;letter-spacing:.03em;color:var(--muted);white-space:nowrap}
tr:last-child td{border-bottom:0} tfoot td{font-weight:700;border-top:2px solid var(--line)} .r{text-align:right;white-space:nowrap}
.badge{display:inline-block;padding:2px 9px;border-radius:99px;font-size:.78rem;font-weight:600;border:1px solid currentColor;vertical-align:middle}
.badge.open{color:var(--warn)} .badge.paid{color:var(--ok)} .badge.cancelled{color:var(--muted);text-decoration:line-through} .badge.overdue{color:var(--bad)}
.tiles{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:12px;margin:12px 0}
.tile{background:var(--card);border:1px solid var(--line);border-radius:10px;padding:14px;text-decoration:none;color:var(--text);display:flex;flex-direction:column;gap:2px}
.tile span,.tile small{color:var(--muted);font-size:.85rem} .tile strong{font-size:1.4rem} .tile.bad strong{color:var(--bad)} a.tile:hover{background:var(--hover)}
.items td{padding:6px} .items textarea{min-height:36px} .items .num{text-align:right} .items td:nth-child(1){min-width:230px} .items .qty{width:75px} .items .unit{width:85px} .items .price{width:105px} .items .vat{width:70px}
.totals{display:flex;flex-direction:column;align-items:flex-end;gap:4px;margin:14px 0} .totals div{min-width:260px;display:flex;justify-content:space-between;gap:30px}
.totals .big{font-size:1.2rem;border-top:2px solid var(--accent);padding-top:6px}
img.logo{max-height:70px;max-width:240px;display:block;margin-bottom:8px;background:#fff;padding:4px;border-radius:4px}
@media print{.top,.actions,.btn{display:none}}
span.inline{display:flex;gap:8px;margin-top:3px} span.inline input,span.inline select{margin:0}
ul.plain{list-style:none;margin:0;padding:0} ul.plain li{padding:2px 0}

/* Verwaltung */
.tabs{display:flex;flex-wrap:wrap;gap:4px;margin:0 0 14px;border-bottom:1px solid var(--line)}
.tabs a{padding:8px 14px;text-decoration:none;color:var(--muted);border-bottom:2px solid transparent;margin-bottom:-1px}
.tabs a:hover{color:var(--text)} .tabs a.on{color:var(--accent);border-bottom-color:var(--accent);font-weight:600}
.top .spacer{flex:1} .top .me{color:var(--muted);text-decoration:none;padding:6px 8px} .top .out{padding:6px 10px;border:1px solid var(--line);border-radius:6px;text-decoration:none;color:var(--text)}
.perm td:not(:first-child),.perm th:not(:first-child){text-align:center;width:110px} label.radio{display:inline-block;margin:0} label.radio input{width:auto;margin:0;transform:scale(1.2)} .sr{position:absolute;left:-9999px}
code.copy{display:block;margin:4px 0 10px;padding:8px 10px;background:var(--bg);border:1px solid var(--line);border-radius:6px;word-break:break-all;user-select:all;font-size:.85rem}
input[type=file]{padding:6px}
.btn.wide{width:100%;margin-top:18px;padding:11px 14px;font-weight:600}

/* Login / Einrichtung: links Werbung, rechts Anmeldung */
body.auth{background:var(--card)}
.split{min-height:100vh;display:grid;grid-template-columns:minmax(0,1.15fr) minmax(360px,.85fr)}
.promo{position:relative;overflow:hidden;color:#fff;background:radial-gradient(1100px 600px at 10% -10%,#3a78c2 0%,transparent 60%),radial-gradient(900px 600px at 110% 110%,#0f2f57 0%,transparent 55%),linear-gradient(145deg,#1e4a7e,#12305a);display:flex;align-items:center}
.promo::before{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);background-size:44px 44px;mask-image:radial-gradient(circle at 30% 30%,#000 0%,transparent 70%)}
.promo-in{position:relative;max-width:560px;margin:0 auto;padding:48px 40px}
.logo-mark{display:flex;align-items:center;gap:12px;font-weight:700;font-size:1.1rem;letter-spacing:.01em;color:#fff;margin-bottom:34px}
.promo h2{font-size:clamp(1.8rem,3.2vw,2.7rem);line-height:1.12;margin:0 0 16px;letter-spacing:-.02em}
.promo .lead{font-size:1.08rem;opacity:.88;margin:0 0 24px;max-width:46ch}
.feat{list-style:none;margin:0 0 30px;padding:0;display:grid;gap:11px}
.feat li{position:relative;padding-left:30px;opacity:.95}
.feat li::before{content:"";position:absolute;left:0;top:3px;width:18px;height:18px;border-radius:50%;background:rgba(255,255,255,.18) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20'%3E%3Cpath d='M5 10.5l3.2 3.2L15 6.8' fill='none' stroke='white' stroke-width='2.2' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") center/12px no-repeat}
.mock{max-width:340px;background:rgba(255,255,255,.96);color:#1d2733;border-radius:14px;padding:16px 18px;box-shadow:0 24px 60px rgba(0,0,0,.35);transform:rotate(-2.2deg)}
.mock-top{display:flex;justify-content:space-between;align-items:center;font-weight:700;margin-bottom:12px}
.mock-top i{font-style:normal;font-size:.7rem;font-weight:600;color:#6b7785;border:1px solid #cfd8e3;border-radius:99px;padding:1px 8px}
.mock-row{display:flex;justify-content:space-between;gap:14px;margin:9px 0}
.bar{display:block;height:9px;border-radius:5px;background:#dfe6ee}.w20{width:20%}.w50{width:50%}.w60{width:60%}.w70{width:70%}
.mock-sum{display:flex;justify-content:space-between;align-items:center;margin-top:14px;padding-top:10px;border-top:2px solid #1e4a7e;font-weight:600}
.mock-sum strong{color:#1f7a4d;font-size:.9rem}
.panel{display:flex;align-items:center;justify-content:center;background:var(--card);color:var(--text)}
.panel-in{width:100%;max-width:380px;padding:40px 28px}
.panel-in h1{font-size:1.7rem;margin:0 0 4px}
.panel-in .foot{margin-top:34px;font-size:.8rem;text-align:center}
@media (max-width:860px){.split{grid-template-columns:1fr}.promo{order:2}.promo-in{padding:32px 24px}.panel{order:1;min-height:auto}.panel-in{padding:36px 20px}.mock{display:none}}
@media (prefers-color-scheme:dark){.mock{background:#f4f6f9}}

/* Banner, Linkbutton, Codes */
.banner{padding:9px 16px;font-size:.92rem;border-bottom:1px solid var(--line);background:var(--card)}
.banner.warn{background:#fff4d6;color:#6b4a00;border-color:#ecd48a}.banner.info{background:#e8f1fb;color:#1b4478;border-color:#bcd3ee}
@media (prefers-color-scheme:dark){.banner.warn{background:#3a3016;color:#f1d68c;border-color:#5c4b1d}.banner.info{background:#16293f;color:#a9c8ee;border-color:#27456b}}
button.linkbtn{background:none;border:0;padding:0;font:inherit;color:var(--accent);text-decoration:underline;cursor:pointer}
form.inline button.out{padding:6px 10px;border:1px solid var(--line);border-radius:6px;background:none;color:var(--text);font:inherit;cursor:pointer}
.codes{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:8px}.codes code{padding:8px 10px;background:var(--bg);border:1px solid var(--line);border-radius:6px;text-align:center;font-size:1rem}
.center{text-align:center}.small{font-size:.85rem}
.hp{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}
details summary{cursor:pointer;margin:14px 0 6px;color:var(--muted)}
.top.sa{background:#14213a;color:#fff}.top.sa .brand,.top.sa nav a,.top.sa .me,.top.sa .out{color:#e8eefb}.top.sa nav a.on{background:#3a78c2}.top.sa .out{border-color:#3d527a;background:none}
.logo-mark .ver{margin-left:4px;font-size:.72rem;font-weight:600;border:1px solid rgba(255,255,255,.45);border-radius:99px;padding:1px 8px;opacity:.85}
.promo-cta{margin-top:26px}

/* Öffentliche Startseite (SaaS) */
body.pub{background:var(--bg)}
.pub-wrap{max-width:1080px;margin:0 auto;padding:0 20px}
.pub-top{position:sticky;top:0;z-index:5;background:var(--card);border-bottom:1px solid var(--line)}
.pub-top .pub-wrap{display:flex;align-items:center;justify-content:space-between;gap:12px;min-height:60px;flex-wrap:wrap}
.pub-brand{font-weight:800;font-size:1.15rem;text-decoration:none;color:var(--text)}
.pub-top nav{display:flex;align-items:center;gap:6px}.pub-top nav a:not(.btn){padding:8px 12px;text-decoration:none;color:var(--text)}
.hero{background:radial-gradient(900px 500px at 15% -10%,#3a78c2 0%,transparent 60%),linear-gradient(145deg,#1e4a7e,#12305a);color:#fff;padding:64px 0 72px}
.hero-in{display:grid;grid-template-columns:1.2fr .8fr;gap:40px;align-items:center}
.hero h1{font-size:clamp(2rem,4.2vw,3.2rem);line-height:1.1;margin:.3em 0 .4em;letter-spacing:-.02em}
.hero .lead{font-size:1.12rem;opacity:.9;max-width:52ch}.hero .muted{color:rgba(255,255,255,.75)}
.pill{display:inline-block;background:rgba(255,255,255,.16);border-radius:99px;padding:4px 14px;font-size:.85rem}
.cta{display:flex;flex-wrap:wrap;gap:12px;margin:26px 0 10px}
.btn.big{padding:13px 24px;font-size:1.05rem;font-weight:600}.btn.ghost-w{background:transparent;color:#fff;border-color:rgba(255,255,255,.55)}.btn.ghost-w:hover{background:rgba(255,255,255,.12)}
.hero .btn.primary{background:#fff;color:#12305a;border-color:#fff}
.mock.big{max-width:360px;justify-self:center}
.sect{padding:56px 20px}.sect h2{text-align:center;font-size:1.8rem;margin:0 0 28px}
.fgrid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:16px}
.fcard{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:20px}.fcard h3{margin:0 0 6px}.fcard p{margin:0;color:var(--muted)}
.pgrid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:18px;margin:18px 0}
.pcard{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:22px;display:flex;flex-direction:column;gap:6px}.pcard.on{border-color:var(--accent);box-shadow:0 0 0 2px var(--accent) inset}
.pcard h3{margin:0}.pprice{font-size:2rem;font-weight:800;margin:8px 0}.pprice small{font-size:.9rem;font-weight:400;color:var(--muted)}
.plist{margin:6px 0 14px;padding-left:18px;color:var(--text)}.plist li{margin:3px 0}.paybtns{display:flex;flex-direction:column;gap:8px;margin-top:auto}
.pub-foot{border-top:1px solid var(--line);background:var(--card);padding:22px 0;color:var(--muted);font-size:.9rem}.pub-foot .pub-wrap{display:flex;justify-content:space-between;flex-wrap:wrap;gap:8px}
.narrow-form{max-width:620px;padding-top:36px;padding-bottom:50px}.legal{max-width:820px;padding-top:30px;padding-bottom:50px}
@media (max-width:820px){.hero-in{grid-template-columns:1fr}.mock.big{display:none}}

/* Ansicht mit Seitenleiste */
body.layout-side{background:var(--bg)}
.shell{display:grid;grid-template-columns:248px minmax(0,1fr);min-height:100vh}
.sidebar{position:sticky;top:0;align-self:start;height:100vh;overflow-y:auto;background:var(--card);border-right:1px solid var(--line);display:flex;flex-direction:column;padding:14px 10px;z-index:20}
.sb-brand{font-weight:800;font-size:1.05rem;color:var(--text);text-decoration:none;padding:6px 10px 14px;word-break:break-word}
.sidebar nav{display:flex;flex-direction:column;gap:2px;flex:1}
.sidebar nav a{padding:8px 12px;border-radius:7px;text-decoration:none;color:var(--text)}
.sidebar nav a:hover{background:var(--hover)} .sidebar nav a.on{background:var(--accent);color:var(--accent-t);font-weight:600}
.sb-group{margin:14px 10px 4px;font-size:.72rem;text-transform:uppercase;letter-spacing:.08em;color:var(--muted)}
.sb-foot{border-top:1px solid var(--line);padding:12px 8px 4px;display:flex;flex-direction:column;gap:8px}
.sb-foot a{color:var(--muted);text-decoration:none;word-break:break-word}
.sb-foot .out{width:100%;padding:7px 10px;border:1px solid var(--line);border-radius:6px;background:none;color:var(--text);font:inherit;cursor:pointer}
.content{min-width:0}
.top.slim{display:none}
.burger{background:none;border:1px solid var(--line);border-radius:6px;font-size:1.2rem;line-height:1;padding:6px 10px;color:var(--text);cursor:pointer}
@media (max-width:900px){
  .shell{grid-template-columns:1fr}
  .sidebar{position:fixed;left:0;top:0;width:260px;transform:translateX(-105%);transition:transform .2s;box-shadow:0 0 30px rgba(0,0,0,.3)}
  body.nav-open .sidebar{transform:none}
  .top.slim{display:flex;align-items:center;gap:12px}
}
.badge.service{color:var(--accent)} .badge.article{color:var(--warn)}
@media print{.sidebar,.burger{display:none}.shell{display:block}}

.catdrop{display:none;position:absolute;z-index:60;background:var(--card);border:1px solid var(--line);border-radius:8px;box-shadow:0 8px 28px rgba(0,0,0,.22);max-width:min(560px,96vw);overflow:hidden}
.catopt{display:flex;gap:10px;align-items:center;padding:8px 12px;cursor:pointer;border-bottom:1px solid var(--line)}
.catopt:last-child{border-bottom:0} .catopt:hover,.catopt.on{background:var(--hover)}
.catopt .cat-t{flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap} .catopt .cat-m{color:var(--muted);white-space:nowrap;font-size:.9rem}
.appver{text-align:center;color:var(--muted);font-size:.78rem;padding:18px 10px 24px}
.items input.price,.items input.qty,.items input.unit{font-size:inherit;font-weight:400;line-height:normal}
@media print{.appver{display:none}}