:root {
  --bg: #f6f3ee;
  --card: #ffffff;
  --ink: #1d1b19;
  --muted: #6b645c;
  --line: #e4ddd3;
  --accent: #8a2b2b;
  --accent-ink: #ffffff;
  --accent-soft: #f6e9e6;
  --good: #1f7a46;
  --good-soft: #e5f4ea;
  --bad: #b3261e;
  --bad-soft: #fbeae8;
  --warn: #8a5a00;
  --warn-soft: #fbf1dc;
  --mono: ui-monospace, "Cascadia Mono", "SF Mono", Menlo, Consolas, monospace;
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #161412;
    --card: #211e1b;
    --ink: #efe9e1;
    --muted: #a59c91;
    --line: #36312c;
    --accent: #d27a6f;
    --accent-ink: #1a0f0d;
    --accent-soft: #3a2421;
    --good: #6fcf97;
    --good-soft: #1d3326;
    --bad: #f28b82;
    --bad-soft: #3b2120;
    --warn: #e8b85c;
    --warn-soft: #3a2f17;
    color-scheme: dark;
  }
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 16px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}

.wrap { max-width: 760px; margin: 0 auto; padding: 0 16px; }

.hero { padding: 40px 0 24px; }
.eyebrow { margin: 0 0 8px; color: var(--accent); font-size: 13px; font-weight: 600; letter-spacing: .04em; text-transform: uppercase; }
h1 { margin: 0 0 12px; font-size: clamp(26px, 6vw, 36px); line-height: 1.15; }
.lead { margin: 0; color: var(--muted); font-size: 17px; max-width: 60ch; }

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 20px;
  margin: 0 0 16px;
}
h2 { margin: 0 0 12px; font-size: 20px; display: flex; align-items: center; gap: 10px; }
h3 { margin: 0 0 8px; font-size: 16px; }
.num {
  display: inline-grid; place-items: center;
  width: 28px; height: 28px; border-radius: 50%;
  background: var(--accent); color: var(--accent-ink);
  font-size: 15px;
}

.block { margin: 16px 0 0; }
.block:first-child { margin-top: 0; }
.row { display: flex; gap: 12px; align-items: center; }
.wrap-row { flex-wrap: wrap; }

.status { margin: 0; font-weight: 600; }
.status.ok { color: var(--good); }
.status.locked { color: var(--warn); }

.hint { color: var(--muted); margin: 8px 0 0; }
.small { font-size: 14px; }

.field { display: block; margin: 0 0 12px; }
.field span { display: block; font-size: 14px; color: var(--muted); margin-bottom: 4px; }
input[type=text] {
  width: 100%; max-width: 420px;
  font: inherit; color: var(--ink);
  background: var(--bg); border: 1px solid var(--line); border-radius: 10px;
  padding: 10px 12px;
}
input[type=text]:focus { outline: 2px solid var(--accent); outline-offset: 1px; }

.btn {
  display: inline-flex; align-items: center; justify-content: center;
  min-height: 44px; padding: 10px 18px;
  font: inherit; font-weight: 600; color: var(--ink);
  background: var(--card); border: 1px solid var(--line); border-radius: 10px;
  cursor: pointer;
}
.btn:hover:not(:disabled) { border-color: var(--accent); }
.btn:disabled { opacity: .5; cursor: not-allowed; }
.btn.primary { background: var(--accent); border-color: var(--accent); color: var(--accent-ink); }
.btn.danger { color: var(--bad); }
.btn.busy { opacity: .7; pointer-events: none; }
.filebtn { position: relative; overflow: hidden; }
.filebtn input { position: absolute; inset: 0; opacity: 0; cursor: pointer; }
.linkbtn { font: inherit; color: var(--accent); background: none; border: 0; padding: 0; text-decoration: underline; cursor: pointer; }

.notice { background: var(--warn-soft); border-radius: 10px; padding: 14px; }
.notice p { margin: 0 0 12px; }

.recovery { background: var(--accent-soft); border-radius: 10px; padding: 16px; }
.recovery p { margin: 0 0 12px; }
.code {
  font-family: var(--mono); font-size: 18px; font-weight: 600; letter-spacing: .06em;
  background: var(--card); border: 1px dashed var(--accent); border-radius: 8px;
  padding: 12px; word-spacing: .3em; line-height: 1.8;
}
.check { display: flex; gap: 8px; align-items: center; margin: 0 0 12px; }
.check input { width: 20px; height: 20px; }

details.sub { margin-top: 12px; }
details.sub summary { cursor: pointer; color: var(--accent); margin-bottom: 12px; }

.checks { list-style: none; margin: 0; padding: 0; display: grid; gap: 6px; }
.checks li { display: flex; gap: 10px; align-items: baseline; }
.checks .mark { flex: 0 0 22px; font-weight: 700; }
.checks .yes { color: var(--good); }
.checks .no { color: var(--bad); }
.checks .maybe { color: var(--warn); }
.checks small { color: var(--muted); }

.result { margin-top: 14px; padding: 12px 14px; border-radius: 10px; font-weight: 600; }
.result.good { background: var(--good-soft); color: var(--good); }
.result.bad { background: var(--bad-soft); color: var(--bad); }
.result p { margin: 4px 0 0; font-weight: 400; color: var(--ink); }

.keys, .files { list-style: none; margin: 16px 0 0; padding: 0; display: grid; gap: 8px; }
.keys:empty, .files:empty { display: none; }
.keys li, .files li {
  display: flex; flex-wrap: wrap; gap: 8px 12px; align-items: center;
  border: 1px solid var(--line); border-radius: 10px; padding: 10px 12px;
}
.keys .name, .files .name { font-weight: 600; flex: 1 1 200px; min-width: 0; overflow-wrap: anywhere; }
.keys .meta, .files .meta { color: var(--muted); font-size: 14px; }
.files .actions { display: flex; gap: 8px; flex-wrap: wrap; }
.files .btn, .keys .btn { min-height: 36px; padding: 6px 12px; font-size: 14px; }
.hidden-name { letter-spacing: .2em; color: var(--muted); }

.drop {
  position: relative; display: grid; place-items: center;
  min-height: 120px; margin-top: 12px;
  border: 2px dashed var(--line); border-radius: 12px;
  color: var(--muted); font-weight: 600; text-align: center; padding: 16px;
  cursor: pointer;
}
.drop:hover, .drop.over { border-color: var(--accent); color: var(--accent); }
.drop input { position: absolute; inset: 0; opacity: 0; cursor: pointer; }
.drop.disabled { opacity: .5; pointer-events: none; }

.hex {
  font-family: var(--mono); font-size: 12.5px; line-height: 1.5;
  background: var(--bg); border-radius: 8px; padding: 12px;
  overflow-x: auto; white-space: pre-wrap; word-break: break-all; margin: 0;
}

.log { margin: 0 0 12px; padding-left: 22px; font-family: var(--mono); font-size: 13px; max-height: 280px; overflow-y: auto; }
.log li { margin: 2px 0; overflow-wrap: anywhere; }
.log .err { color: var(--bad); }
.log .ok { color: var(--good); }

.foot { color: var(--muted); font-size: 14px; margin: 24px 0 48px; }

@media (max-width: 520px) {
  .card { padding: 16px; }
  .row .btn, .wrap-row .btn { flex: 1 1 100%; }
}