:root {
  color-scheme: light dark;
  --bg: #f5f5f7;
  --card: #ffffff;
  --text: #1d1d1f;
  --muted: #6e6e73;
  --border: #d2d2d7;
  --accent: #0071e3;
  --accent-text: #ffffff;
  --ok-bg: #e8f6ec;
  --ok-border: #34c759;
  --err-bg: #fdecec;
  --err-border: #ff3b30;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #000000;
    --card: #1c1c1e;
    --text: #f5f5f7;
    --muted: #a1a1a6;
    --border: #3a3a3c;
    --accent: #2997ff;
    --ok-bg: #0f2a17;
    --err-bg: #3a1212;
  }
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font: 16px/1.5 -apple-system, BlinkMacSystemFont, "SF Pro Text", "Helvetica Neue", Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
}
header, main, footer { max-width: 760px; margin: 0 auto; padding: 0 20px; }
header { padding-top: 40px; }
h1 { font-size: 2rem; margin: 0 0 8px; }
h2 { font-size: 1.35rem; margin-top: 0; }
h3 { font-size: 1.2rem; }
h4 { font-size: 1.05rem; margin-top: 1.8em; }
.lede { color: var(--muted); margin-top: 0; }
.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 24px;
  margin: 24px 0;
}
label { display: block; font-weight: 600; margin-bottom: 6px; }
.row { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
input[type=password], input[type=text] {
  flex: 1;
  min-width: 0;
  font: inherit;
  font-family: ui-monospace, Menlo, monospace;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: transparent;
  color: inherit;
}
button {
  font: inherit;
  font-weight: 600;
  padding: 10px 18px;
  border-radius: 8px;
  border: 1px solid var(--accent);
  background: var(--accent);
  color: var(--accent-text);
  cursor: pointer;
}
button.secondary { background: transparent; color: var(--accent); }
button:disabled { opacity: .45; cursor: not-allowed; }
.hint { color: var(--muted); font-size: .9rem; margin: 6px 0 12px; }
.drop {
  border: 2px dashed var(--border);
  border-radius: 12px;
  padding: 28px 16px;
  text-align: center;
  cursor: pointer;
  margin: 16px 0 4px;
}
.drop p { margin: 4px 0; }
.drop.over, .drop:focus-visible { border-color: var(--accent); outline: none; }
progress { width: 100%; height: 12px; margin-top: 16px; }
#result { margin-top: 16px; padding: 14px 16px; border-radius: 10px; border: 1px solid; word-break: break-word; }
#result.ok { background: var(--ok-bg); border-color: var(--ok-border); }
#result.err { background: var(--err-bg); border-color: var(--err-border); }
#result p { margin: 0; }
#result dl { display: grid; grid-template-columns: max-content 1fr; gap: 4px 12px; margin: 8px 0 0; }
#result dt { font-weight: 600; }
#result dd { margin: 0; font-family: ui-monospace, Menlo, monospace; font-size: .85rem; }
code { font-family: ui-monospace, Menlo, monospace; font-size: .88em; word-break: break-all; }
.source { color: var(--muted); font-size: .9rem; }
.apple ol { padding-left: 1.4em; }
.apple li { margin-bottom: 8px; }
.apple li p { margin: 6px 0 0; color: var(--muted); }
.important { border-left: 3px solid var(--accent); padding-left: 12px; }
a { color: var(--accent); }
footer { color: var(--muted); font-size: .85rem; padding-bottom: 40px; }