:root {
    --bg: #f4f6f8; --card: #fff; --text: #14171a; --muted: #5b6570; --line: #d5dbe1;
    --accent: #0a7bc2; --accent-text: #fff; --ok: #e7f6ec; --ok-line: #6cbf84; --warn: #fff5e0; --warn-line: #e0a530;
    --bad: #fdecec; --bad-line: #d9534f; --info: #e8f2fb; --info-line: #6aa6d8;
}
@media (prefers-color-scheme: dark) {
    :root {
        --bg: #111417; --card: #1b2024; --text: #e8ecef; --muted: #9aa5af; --line: #333b42;
        --accent: #3aa0e0; --accent-text: #08131b; --ok: #15301f; --ok-line: #3f8f57; --warn: #33290f; --warn-line: #b5862a;
        --bad: #3a1717; --bad-line: #c0504d; --info: #13283a; --info-line: #3f7fb5;
    }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--bg); color: var(--text); font: 16px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif; }
.wrap { max-width: 760px; margin: 0 auto; padding: 16px; }
.top { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 16px; }
.brand { font-weight: 700; letter-spacing: .08em; }
.who { color: var(--muted); margin-right: 8px; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 12px; padding: 20px; margin-bottom: 16px; }
.card.narrow { max-width: 440px; margin-left: auto; margin-right: auto; }
h1 { font-size: 1.4rem; margin: 0 0 12px; }
h2 { font-size: 1.15rem; margin: 0 0 12px; }
p { margin: 0 0 12px; }
label { display: block; font-weight: 600; margin: 12px 0 4px; }
input:not([type=checkbox]), textarea {
    width: 100%; padding: 10px 12px; font: inherit; color: var(--text); background: var(--card);
    border: 1px solid var(--line); border-radius: 8px;
}
input:focus, textarea:focus, button:focus-visible { outline: 2px solid var(--accent); outline-offset: 1px; }
textarea { font-family: ui-monospace, Consolas, monospace; font-size: .85rem; resize: vertical; word-break: break-all; }
button {
    font: inherit; padding: 10px 16px; border-radius: 8px; border: 1px solid var(--line);
    background: var(--card); color: var(--text); cursor: pointer;
}
button.primary { background: var(--accent); border-color: var(--accent); color: var(--accent-text); font-weight: 600; }
button.wide { width: 100%; margin-top: 16px; }
a.button { display: inline-block; text-decoration: none; padding: 10px 16px; border-radius: 8px; border: 1px solid var(--line); color: var(--text); }
a.button.primary { background: var(--accent); border-color: var(--accent); color: var(--accent-text); font-weight: 600; }
button.link { border: 0; background: none; padding: 0; color: var(--accent); text-decoration: underline; }
button.link.danger { color: var(--bad-line); }
a { color: var(--accent); }
form.inline { display: flex; align-items: center; }
form.row { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 12px; }
form.stack { display: flex; flex-direction: column; align-items: flex-start; gap: 12px; margin-bottom: 8px; }
label.check { display: flex; gap: 10px; align-items: flex-start; font-weight: 400; margin: 0; cursor: pointer; }
label.check input { width: 20px; height: 20px; margin-top: 2px; flex: none; }
.note { border: 1px solid; border-left-width: 4px; border-radius: 8px; padding: 10px 12px; margin-bottom: 12px; }
.note.ok { background: var(--ok); border-color: var(--ok-line); }
.note.warn { background: var(--warn); border-color: var(--warn-line); }
.note.bad { background: var(--bad); border-color: var(--bad-line); }
.note.info { background: var(--info); border-color: var(--info-line); }
.muted, .hint { color: var(--muted); }
.hint { font-size: .875rem; margin-top: 4px; }
.card form + p.muted { margin-top: 16px; }
.mono { font-family: ui-monospace, Consolas, monospace; }
.key { display: flex; flex-wrap: wrap; gap: 16px; align-items: flex-start; }
.qr { background: #fff; padding: 8px; border-radius: 8px; border: 1px solid var(--line); line-height: 0; }
button.qr { display: block; margin: 16px 0 4px; cursor: pointer; color: #000; }
button.qr:hover { border-color: var(--accent); }
button.qr.saving { opacity: .6; }
.keytext + button.qr { margin-top: 16px; }
.qr svg { width: 260px; height: 260px; max-width: 100%; }
.keytext { flex: 1 1 260px; min-width: 0; display: flex; flex-direction: column; gap: 8px; align-items: flex-start; }
.keytext textarea { width: 100%; }
.tablewrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: .925rem; }
th, td { text-align: left; padding: 8px 6px; border-bottom: 1px solid var(--line); vertical-align: top; }
tr.dim td { color: var(--muted); }
@media (max-width: 480px) { .card { padding: 16px; } .qr svg { width: 220px; height: 220px; } }
@media (forced-colors: active) { .note, .card, button, input, textarea { border: 1px solid CanvasText; } }