:root {
  --bg: #0c0e10;
  --bg-2: #121518;
  --line: #22272c;
  --line-2: #2e353c;
  --fg: #d9dee2;
  --muted: #7d8790;
  --accent: #9ef0b4;
  --accent-ink: #0c0e10;
  --warn: #f0c674;
  --danger: #ff8080;
  --mono: ui-monospace, "SF Mono", "JetBrains Mono", "Cascadia Code", Menlo, Consolas, "PingFang SC",
    "Noto Sans Mono CJK SC", "Microsoft YaHei", monospace;
  --radius: 10px;
}

@media (prefers-color-scheme: light) {
  :root {
    --bg: #f7f7f4;
    --bg-2: #ffffff;
    --line: #e3e3dd;
    --line-2: #d2d2ca;
    --fg: #1b1f23;
    --muted: #6b737a;
    --accent: #137a3a;
    --accent-ink: #ffffff;
    --warn: #9a6700;
    --danger: #c62828;
  }
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background: var(--bg);
  color: var(--fg);
  font: 14px/1.6 var(--mono);
  font-variant-ligatures: none;
}
::selection { background: var(--accent); color: var(--accent-ink); }
a { color: inherit; text-decoration: none; border-bottom: 1px dashed var(--line-2); }
a:hover { color: var(--accent); border-color: var(--accent); }
code, pre, input, textarea, button { font: inherit; }
code { color: var(--accent); }
[hidden] { display: none !important; }

.bar, main, footer { width: 100%; max-width: 820px; margin: 0 auto; padding: 0 24px; }

.bar { display: flex; align-items: center; justify-content: space-between; height: 72px; }
.logo { border: 0; font-weight: 700; font-size: 17px; letter-spacing: -0.02em; }
.cursor { color: var(--accent); animation: blink 1.1s steps(1) infinite; }
@keyframes blink { 50% { opacity: 0; } }
nav { display: flex; gap: 20px; align-items: center; color: var(--muted); }

main { flex: 1; }
.hero { padding: 40px 0 32px; }
h1 { margin: 0 0 16px; font-size: clamp(26px, 5vw, 38px); line-height: 1.2; letter-spacing: -0.03em; }
.hero p { margin: 0; max-width: 62ch; color: var(--muted); }
h2 { font-size: 13px; text-transform: uppercase; letter-spacing: 0.12em; color: var(--muted); margin: 0 0 16px; }
h3 { margin: 0 0 6px; font-size: 14px; }

.panel {
  background: var(--bg-2);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 18px;
  margin-bottom: 48px;
}
.panel-head { display: flex; align-items: center; gap: 10px; margin-bottom: 16px; flex-wrap: wrap; }
.prompt, .ok, .c { color: var(--accent); }
.muted { color: var(--muted); }
.small { font-size: 12px; }

.rows { display: grid; gap: 8px; }
.row { display: grid; grid-template-columns: minmax(0, 2fr) auto minmax(0, 3fr) auto auto; gap: 8px; align-items: center; }
.eq { color: var(--muted); }

input, textarea {
  width: 100%;
  background: var(--bg);
  color: var(--fg);
  border: 1px solid var(--line);
  border-radius: 7px;
  padding: 9px 11px;
  outline: none;
  transition: border-color 0.15s;
}
input:focus, textarea:focus { border-color: var(--accent); }
input.k { text-transform: uppercase; }
input.k::placeholder { text-transform: none; }
input.bad { border-color: var(--danger); }
textarea { resize: vertical; min-height: 120px; }

button { cursor: pointer; border-radius: 7px; border: 1px solid transparent; padding: 8px 14px; color: var(--fg); background: none; }
button:disabled { opacity: 0.5; cursor: progress; }
.link { padding: 0; color: var(--muted); }
.link:hover { color: var(--accent); }
.icon { padding: 6px 8px; color: var(--muted); }
.icon:hover { color: var(--fg); }
.ghost { border-color: var(--line); color: var(--muted); }
.ghost:hover { border-color: var(--line-2); color: var(--fg); }
.ghost.danger:hover { border-color: var(--danger); color: var(--danger); }
.primary { background: var(--accent); color: var(--accent-ink); font-weight: 700; }
.primary:hover { filter: brightness(1.08); }
.sm { padding: 3px 10px; font-size: 12px; }

.tools { display: flex; gap: 8px; margin-top: 14px; flex-wrap: wrap; }
.importer { display: grid; gap: 8px; margin-top: 14px; justify-items: start; }

.foot-row { display: flex; justify-content: space-between; align-items: center; gap: 16px; margin-top: 20px; padding-top: 16px; border-top: 1px dashed var(--line); flex-wrap: wrap; }
.ttl { display: flex; gap: 6px; align-items: center; flex-wrap: wrap; }
.ttl .muted { margin-right: 6px; }
.ttl input { display: none; }
.ttl label span { display: inline-block; padding: 3px 10px; border: 1px solid var(--line); border-radius: 999px; cursor: pointer; color: var(--muted); }
.ttl input:checked + span { border-color: var(--accent); color: var(--accent); }

.error { color: var(--danger); margin: 10px 0 0; }
.error:empty { display: none; }

.fields { display: grid; grid-template-columns: max-content minmax(0, 1fr); gap: 10px 16px; margin: 0 0 20px; }
.fields dt { color: var(--muted); }
.fields dd { margin: 0; display: flex; gap: 8px; align-items: center; min-width: 0; }
.fields code { overflow-wrap: anywhere; flex: 1; min-width: 0; }
.secret:not(.shown) { color: transparent; text-shadow: 0 0 7px var(--muted); user-select: none; }

.prompt-head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 8px; color: var(--muted); }
.term {
  margin: 0 0 10px;
  padding: 14px 16px;
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: 7px;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
}

.status { margin-left: auto; display: inline-flex; gap: 8px; align-items: center; color: var(--muted); font-size: 12px; }
.status i { width: 8px; height: 8px; border-radius: 50%; background: var(--line-2); }
.status.sealed i { background: var(--warn); box-shadow: 0 0 0 0 var(--warn); animation: pulse 1.8s infinite; }
.status.gone i { background: var(--accent); }
@keyframes pulse { 70% { box-shadow: 0 0 0 6px transparent; } }

.how ol { list-style: none; margin: 0 0 48px; padding: 0; display: grid; grid-template-columns: repeat(auto-fit, minmax(170px, 1fr)); gap: 12px; }
.how li { border: 1px solid var(--line); border-radius: var(--radius); padding: 16px; }
.how b { color: var(--accent); font-size: 12px; }
.how p { margin: 0; color: var(--muted); font-size: 13px; }
.how code { white-space: nowrap; }
.cli { margin-bottom: 48px; }
.cli p { color: var(--muted); }

footer { display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; padding-top: 24px; padding-bottom: 32px; border-top: 1px solid var(--line); color: var(--muted); font-size: 12px; }

@media (max-width: 560px) {
  .row { grid-template-columns: minmax(0, 1fr) auto auto; }
  .row .eq { display: none; }
  .row .k { grid-column: 1 / -1; }
}