:root{
  --ink:#1c2430; --muted:#69727e; --line:#e3e7eb;
  --bg:#eef1f3; --surface:#ffffff;
  --accent:#13868b; --accent-d:#0e6e72; --accent-soft:#e7f3f3;
  --field:#f6f8f9; --ro:#eef1f3;
  --ok:#1f8a4c; --okbg:#e7f4ec; --err:#c0392b;
  --radius:12px;
  --font:ui-sans-serif,"Inter","Segoe UI",Roboto,Helvetica,Arial,sans-serif;
}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--font);
  line-height:1.5;font-size:16px}

/* Kopf */
.topbar{background:#fff;border-bottom:1px solid var(--line)}
.topbar-inner{max-width:980px;margin:0 auto;padding:14px 20px;
  display:flex;align-items:center;justify-content:space-between;gap:16px}
.brand{display:flex;align-items:center;gap:16px;min-width:0}
.logo{height:30px;width:auto;display:block}
.brand-sub{color:var(--muted);font-size:12px;letter-spacing:.05em;
  text-transform:uppercase;font-weight:600;border-left:1px solid var(--line);
  padding-left:16px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.lang{display:flex;gap:2px;flex:none}
.lang a{color:var(--muted);text-decoration:none;font-size:12px;font-weight:700;
  padding:5px 9px;border-radius:7px}
.lang a.on{color:#fff;background:var(--accent)}
.lang a:hover:not(.on){background:var(--accent-soft);color:var(--accent-d)}
.topbar-accent{height:3px;background:var(--accent)}

/* Layout */
.wrap{max-width:980px;margin:0 auto;padding:26px 18px 64px}
.wrap-wide{max-width:1500px}
.stack>*+*{margin-top:18px}
.hero{padding:6px 2px 18px}
.hero-label{color:var(--accent);font-size:12px;font-weight:800;
  letter-spacing:.12em;text-transform:uppercase}
h1{font-size:26px;letter-spacing:-.01em;margin:2px 0 6px}
.hero-sub{color:var(--muted);margin:0;max-width:62ch}

/* Tabs */
.tabs{display:flex;gap:24px;border-bottom:1px solid var(--line);margin:0 0 20px}
.tab{padding:10px 2px;color:var(--muted);text-decoration:none;font-weight:600;
  font-size:15px;border-bottom:2px solid transparent;margin-bottom:-1px}
.tab.on{color:var(--accent-d);border-bottom-color:var(--accent)}
.tab:hover:not(.on){color:var(--ink)}

/* Cards */
.card{position:relative;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius);padding:24px;overflow:hidden}
.card-accent{position:absolute;inset:0 0 auto 0;height:3px;background:var(--accent)}
.narrow{max-width:460px;margin-left:auto;margin-right:auto}
.center{text-align:center}
.flush{padding:0}

.sec{font-size:13px;font-weight:800;letter-spacing:.06em;text-transform:uppercase;
  color:var(--accent-d);margin:6px 0 16px}
.sec-sub{color:var(--muted);font-size:14px;margin:-10px 0 18px}

/* Felder */
.field{margin:0 0 16px}
label{display:block;font-weight:600;font-size:14px;margin-bottom:6px}
.req{color:var(--accent);font-weight:800}
input[type=text],input[type=password],input[type=date],input[type=time],
input[type=number],select{
  width:100%;padding:11px 12px;border:1px solid var(--line);border-radius:9px;
  background:var(--field);font:inherit;color:var(--ink)}
input:focus,select:focus{outline:2px solid var(--accent);outline-offset:1px;
  border-color:var(--accent);background:#fff}
input.ro,input[readonly]{background:var(--ro);color:var(--muted);cursor:default}
.hint{color:var(--muted);font-size:12.5px;margin:6px 0 0}
.mono,.info-serial{font-variant-numeric:tabular-nums}

.grid2{display:grid;grid-template-columns:1fr 1fr;gap:0 18px}
.grid3{display:grid;grid-template-columns:1fr 1fr 1fr;gap:0 12px}
@media(max-width:560px){.grid2,.grid3{grid-template-columns:1fr}}

/* Stammdaten-Karte */
.info-card{border:1px solid var(--line);border-radius:10px;padding:14px 16px;background:#fbfcfd}
.info-serial{font-weight:800;font-size:18px;letter-spacing:.02em;margin-bottom:10px}
.info-card dl{display:grid;grid-template-columns:auto 1fr;gap:6px 16px;margin:0}
.info-card dt{color:var(--muted);font-size:13px}
.info-card dd{margin:0;font-weight:600;font-size:14px;text-align:right}

/* Checkbox */
.check{display:flex;gap:11px;align-items:flex-start;font-weight:500;font-size:14px;
  margin:4px 0 16px;cursor:pointer;border:1px solid var(--line);border-radius:9px;
  padding:13px 14px;background:#fbfcfd}
.check input{margin-top:2px;width:18px;height:18px;accent-color:var(--accent);flex:none}

/* Datei */
.file-row{display:flex;align-items:center;gap:12px;flex-wrap:wrap;
  border:1px dashed var(--line);border-radius:9px;padding:12px;background:#fbfcfd}
.file-btn{display:inline-block;background:var(--ink);color:#fff;border-radius:8px;
  padding:9px 14px;font-size:14px;font-weight:600;cursor:pointer;margin:0}
.file-name{color:var(--muted);font-size:13px}
.ghost{background:#fff;border:1px solid var(--line);color:var(--ink);border-radius:8px;
  padding:9px 14px;font:inherit;font-size:14px;font-weight:600;cursor:pointer}
.ghost:hover{border-color:var(--accent);color:var(--accent-d)}
.example{margin:12px 0 0}
.example figcaption{font-size:13px;color:var(--muted);margin-bottom:6px}
.example img{max-width:100%;border:1px solid var(--line);border-radius:8px}

.alt{border:1px solid var(--line);border-left:3px solid var(--accent);border-radius:9px;
  padding:16px 16px 2px;margin:0 0 6px;background:#fbfcfd}

/* Footer-Bar */
.footer-bar{display:flex;align-items:center;justify-content:space-between;gap:16px;
  flex-wrap:wrap;background:#fff;border:1px solid var(--line);border-radius:12px;padding:16px 20px}
.footer-note{color:var(--muted);font-size:13px;max-width:60ch}

/* Buttons */
.submit{display:inline-block;text-align:center;background:var(--accent);color:#fff;
  border:0;border-radius:9px;padding:12px 22px;font:inherit;font-weight:700;cursor:pointer;
  text-decoration:none;transition:background .15s}
.submit:hover{background:var(--accent-d)}
.submit:focus-visible{outline:2px solid var(--ink);outline-offset:2px}
.as-link{padding:11px 18px}
form.card .submit{width:100%;margin-top:4px}

/* Status */
.banner{border-radius:9px;padding:11px 13px;font-size:14px;margin:0 0 16px}
.banner.err{background:#fdecef;color:var(--err);border:1px solid #f5c6cf}
.ok-badge,.err-badge{width:54px;height:54px;border-radius:50%;display:flex;
  align-items:center;justify-content:center;font-size:28px;font-weight:800;margin:6px auto 12px}
.ok-badge{background:var(--okbg);color:var(--ok)}
.err-badge{background:#fdecef;color:var(--err)}

/* Admin */
.admin-head{display:flex;align-items:flex-end;justify-content:space-between;
  gap:16px;flex-wrap:wrap;margin:0 0 18px}
.admin-actions{display:flex;gap:10px}
.table-scroll{overflow-x:auto}
table{width:100%;border-collapse:collapse}
th,td{padding:7px 9px;text-align:left;font-size:13px;border-bottom:1px solid var(--line);
  vertical-align:middle}
td{white-space:nowrap}
th{background:#26323c;color:#fff;font-size:10.5px;text-transform:uppercase;letter-spacing:.02em;
  position:sticky;top:0;line-height:1.2}
tr:last-child td{border-bottom:0}
tbody tr:hover td{background:#f7f9fa}
td.num{text-align:right;font-variant-numeric:tabular-nums}
img.thumb{height:42px;border:1px solid var(--line);border-radius:6px;display:block;cursor:pointer}

[hidden]{display:none !important}
@media(prefers-reduced-motion:reduce){*{transition:none !important}}