:root {
  --bg: #f4f5f7; --panel: #ffffff; --text: #1a1d23; --muted: #626a78; --line: #dde1e8;
  --accent: #1f5fd0; --accent-text: #ffffff; --danger: #b3261e; --ok: #1b7a43; --warn: #8a5a00; --chip: #e9edf5;
  color-scheme: light dark;
}
@media (prefers-color-scheme: dark) {
  :root { --bg: #14161a; --panel: #1d2026; --text: #e8eaee; --muted: #9aa3b2; --line: #2e333c; --accent: #6ea2ff; --accent-text: #0c1322; --danger: #ff8a80; --ok: #6fd69a; --warn: #f0c060; --chip: #2a2f39; }
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--text); font: 15px/1.45 system-ui, -apple-system, "Segoe UI", sans-serif; }
header.top { display: flex; align-items: center; gap: 12px; padding: 10px 16px; background: var(--panel); border-bottom: 1px solid var(--line); flex-wrap: wrap; }
header.top h1 { font-size: 17px; margin: 0; }
header.top .spacer { flex: 1; }
nav.tabs { display: flex; gap: 4px; padding: 8px 16px 0; overflow-x: auto; background: var(--panel); border-bottom: 1px solid var(--line); }
nav.tabs button { border: 0; border-bottom: 3px solid transparent; border-radius: 0; background: none; color: var(--muted); padding: 8px 10px; white-space: nowrap; }
nav.tabs button[aria-current="page"] { color: var(--text); border-bottom-color: var(--accent); font-weight: 600; }
main { padding: 16px; max-width: 1100px; margin: 0 auto; }
section.card { background: var(--panel); border: 1px solid var(--line); border-radius: 10px; padding: 14px 16px; margin-bottom: 14px; }
section.card h2, dialog h2 { font-size: 15px; margin: 0 0 10px; }
section.card .row > h2 { margin: 0; }
h3 { font-size: 14px; margin: 14px 0 6px; }
p { margin: 6px 0; }
.muted { color: var(--muted); }
.small { font-size: 13px; }
.error { color: var(--danger); }
.ok { color: var(--ok); }
.warn { color: var(--warn); }
.row { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.grow { flex: 1; min-width: 0; }
.chip { display: inline-block; background: var(--chip); border-radius: 999px; padding: 1px 9px; font-size: 12px; white-space: nowrap; }
button, select, input, textarea { font: inherit; color: inherit; }
button { border: 1px solid var(--line); background: var(--panel); border-radius: 7px; padding: 6px 11px; cursor: pointer; }
button:hover { border-color: var(--accent); }
button.primary { background: var(--accent); border-color: var(--accent); color: var(--accent-text); font-weight: 600; }
button.danger { color: var(--danger); }
button.link { border: 0; background: none; padding: 0; color: var(--accent); text-align: left; }
button:disabled { opacity: .5; cursor: default; }
button:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible { outline: 2px solid var(--accent); outline-offset: 1px; }
input[type=text], input[type=password], input[type=number], select, textarea { border: 1px solid var(--line); background: var(--bg); border-radius: 7px; padding: 6px 9px; min-width: 0; }
textarea { width: 100%; min-height: 110px; resize: vertical; }
label.field { display: block; margin: 8px 0; }
label.field > span { display: block; font-size: 13px; color: var(--muted); margin-bottom: 3px; }
label.field input[type=text], label.field select { width: 100%; }
label.check { display: flex; gap: 8px; align-items: flex-start; margin: 6px 0; }
.pw { display: flex; }
.pw input { flex: 1; border-top-right-radius: 0; border-bottom-right-radius: 0; }
.pw button { border-left: 0; border-top-left-radius: 0; border-bottom-left-radius: 0; min-width: 44px; }
.scroll { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: 7px 8px; border-bottom: 1px solid var(--line); vertical-align: top; }
th { font-size: 12px; font-weight: 600; color: var(--muted); white-space: nowrap; }
td.num, th.num { text-align: right; white-space: nowrap; font-variant-numeric: tabular-nums; }
td.actions { white-space: nowrap; text-align: right; }
td.actions button { padding: 3px 8px; font-size: 13px; margin-left: 4px; }
code, .mono { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 13px; }
pre.copy { background: var(--bg); border: 1px solid var(--line); border-radius: 7px; padding: 9px; white-space: pre-wrap; word-break: break-all; margin: 6px 0; }
.crumbs { display: flex; gap: 4px; flex-wrap: wrap; align-items: center; margin: 8px 0; }
.bar { height: 8px; background: var(--chip); border-radius: 4px; overflow: hidden; min-width: 60px; }
.bar > i { display: block; height: 100%; background: var(--accent); }
dialog { border: 1px solid var(--line); border-radius: 10px; background: var(--panel); color: var(--text); padding: 16px; width: min(460px, calc(100vw - 32px)); }
dialog::backdrop { background: rgba(0, 0, 0, .45); }
.center { max-width: 460px; margin: 6vh auto; }
[hidden] { display: none !important; }
/* Anmeldung und Einrichtung: Fenster in der Mitte, dahinter der Serverraum. */
.gate { min-height: 100vh; min-height: 100dvh; display: grid; place-items: center; padding: 16px; background: linear-gradient(rgba(6, 10, 22, .35), rgba(6, 10, 22, .6)), url(serverraum.svg) center / cover no-repeat #070b16; }
.gate .center { margin: 0; padding: 0; width: 100%; }
.gate section.card { margin: 0; padding: 22px 24px; border-color: rgba(255, 255, 255, .18); box-shadow: 0 18px 60px rgba(0, 0, 0, .55); background: color-mix(in srgb, var(--panel) 92%, transparent); backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px); }
.gate section.card h2 { font-size: 18px; margin-bottom: 14px; }
.gate button.primary, button.wide { width: 100%; padding: 9px 11px; }
.or { text-align: center; margin: 12px 0 8px; }
.qr { display: flex; justify-content: center; margin: 8px 0; }
.qr svg { border-radius: 8px; max-width: 100%; height: auto; }
.stat { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 10px; }
.stat div { background: var(--bg); border-radius: 8px; padding: 9px 11px; }
.stat b { display: block; font-size: 18px; font-variant-numeric: tabular-nums; }
@media (max-width: 640px) { main { padding: 10px; } th, td { padding: 6px 5px; } .hide-narrow { display: none; } td.actions { white-space: normal; } td.actions button { margin: 2px 0 2px 4px; } }