:root{--bg:#f4f6f9;--card:#fff;--ink:#1c2430;--muted:#6b7686;--line:#e1e6ee;--accent:#1f4f8f;--ok:#1e7d4f;--bad:#b3261e}
*{box-sizing:border-box}
body{margin:0;font:16px/1.5 system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;background:var(--bg);color:var(--ink)}
body.center{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:16px}
a{color:var(--accent)}
.top{background:#17233a;color:#fff;display:flex;flex-wrap:wrap;gap:8px 24px;align-items:center;padding:12px 20px}
.top a{color:#dbe6f7;text-decoration:none}.top a:hover{color:#fff}
.top .brand{font-weight:700;color:#fff;font-size:18px}
.top nav{display:flex;gap:16px;flex:1;flex-wrap:wrap}
.who{font-size:14px;color:#b8c6dd}
main{max-width:1000px;margin:0 auto;padding:20px}
h1{font-size:24px;margin:8px 0 16px}h2{font-size:18px;margin:24px 0 8px}
.card{background:var(--card);border:1px solid var(--line);border-radius:10px;padding:16px;margin:12px 0}
.card.narrow{width:100%;max-width:420px}
.card.inactive{opacity:.6}
.muted{color:var(--muted);font-size:14px}
.ok{color:var(--ok)}.alert{color:var(--bad);background:#fdecea;padding:8px 12px;border-radius:8px}
label{display:block;font-size:14px;margin:10px 0;color:#344054}
input,select,textarea{display:block;width:100%;padding:9px 10px;margin-top:4px;border:1px solid #c9d2df;border-radius:8px;font:inherit;background:#fff}
label.check{display:inline-flex;align-items:center;gap:6px;margin-right:14px}
label.check input{width:auto;margin:0}
button,.btn{display:inline-block;background:var(--accent);color:#fff;border:0;border-radius:8px;padding:9px 16px;font:inherit;cursor:pointer;text-decoration:none}
button.link{background:none;color:var(--accent);padding:0;text-decoration:underline}
.row{display:flex;flex-wrap:wrap;gap:12px}.row>label{flex:1;min-width:180px}
form.inline{display:flex;gap:8px;align-items:center;margin-top:8px}form.inline input{max-width:240px;margin:0}
.filters{display:flex;flex-wrap:wrap;gap:8px;align-items:center;margin-bottom:12px}.filters select{width:auto}
table{width:100%;border-collapse:collapse;background:var(--card);border:1px solid var(--line);border-radius:10px;overflow:hidden}
th,td{text-align:left;padding:9px 12px;border-bottom:1px solid var(--line);font-size:15px}th{background:#eef2f8;font-size:13px;color:var(--muted)}
.tag{padding:2px 9px;border-radius:99px;font-size:13px;background:#e8edf5}
.s-neu{background:#fde8c8}.s-in_bearbeitung{background:#d6e6fb}.s-wartet_kunde{background:#f3e0f7}.s-erledigt{background:#d9f0e2}
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:12px}
.stat{text-align:center;color:var(--muted)}.stat span{display:block;font-size:34px;font-weight:700;color:var(--ink)}
.msg{background:var(--card);border:1px solid var(--line);border-radius:10px;padding:12px 14px;margin:10px 0}
.msg.staff{border-left:4px solid var(--accent)}.msg.internal{background:#fff8e1;border-color:#f0d98a}
.msg .meta{font-size:13px;color:var(--muted);margin-bottom:4px}
fieldset{border:1px solid var(--line);border-radius:8px;margin:10px 0}
@media(max-width:700px){table,thead,tbody,tr,th,td{display:block}tr{margin-bottom:10px;border:1px solid var(--line)}th{display:none}}