:root {
  --bg: #f6f5f2; --card: #ffffff; --ink: #1c1c1a; --muted: #6b6a66; --line: #e4e2dc;
  --accent: #1f5f4a; --accent-ink: #ffffff; --ok: #1f7a4d; --bad: #b3261e; --warn: #8a5a00;
  --radius: 14px;
  font: 16px/1.45 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  color-scheme: light dark;
}
@media (prefers-color-scheme: dark) {
  :root { --bg: #161615; --card: #20201e; --ink: #ecebe7; --muted: #9c9a94; --line: #34332f; --accent: #5bb894; --accent-ink: #0d1f18; --ok: #6cc896; --bad: #ff8a80; --warn: #e0b45c; }
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--ink); }
main { max-width: 640px; margin: 0 auto; padding: 20px 16px 48px; }
main.wide { max-width: 1040px; }
header.top { display: flex; justify-content: space-between; align-items: baseline; gap: 12px; margin-bottom: 16px; }
header.top h1 { font-size: 20px; margin: 0; letter-spacing: .2px; }
header.top nav { display: flex; gap: 14px; font-size: 15px; }
a { color: var(--accent); }
.card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 18px; margin: 0 0 14px; }
.card h2 { font-size: 15px; margin: 0 0 10px; color: var(--muted); font-weight: 600; text-transform: uppercase; letter-spacing: .6px; }
.big { font-size: 56px; font-weight: 700; line-height: 1; letter-spacing: -1px; }
.big small { font-size: 22px; font-weight: 600; letter-spacing: 0; color: var(--muted); margin-left: 8px; }
.verdict { font-size: 22px; font-weight: 700; margin: 0 0 6px; }
.verdict.ok { color: var(--ok); } .verdict.bad { color: var(--bad); }
.muted { color: var(--muted); }
.err { color: var(--bad); margin: 8px 0 0; }
.note { color: var(--warn); margin: 8px 0 0; }
ul.log { list-style: none; padding: 0; margin: 6px 0 0; font-variant-numeric: tabular-nums; }
ul.log li { padding: 3px 0; border-bottom: 1px dashed var(--line); }
ul.log li:last-child { border-bottom: 0; }
.sub { font-weight: 600; margin: 12px 0 2px; }
form.row, .row { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; }
input, select, button { font: inherit; border-radius: 10px; border: 1px solid var(--line); padding: 10px 12px; background: var(--card); color: var(--ink); }
input { flex: 1 1 220px; min-width: 0; }
input.code { font-variant-numeric: tabular-nums; letter-spacing: 1px; text-transform: uppercase; }
input.num { flex: 0 0 90px; }
button { background: var(--accent); color: var(--accent-ink); border-color: var(--accent); font-weight: 600; cursor: pointer; }
button.ghost { background: transparent; color: var(--accent); }
button.danger { background: transparent; color: var(--bad); border-color: var(--bad); }
button:disabled { opacity: .55; cursor: default; }
label.stack { display: flex; flex-direction: column; gap: 4px; font-size: 14px; color: var(--muted); }
table { width: 100%; border-collapse: collapse; font-size: 15px; }
th, td { text-align: left; padding: 8px 6px; border-bottom: 1px solid var(--line); vertical-align: top; }
th { color: var(--muted); font-weight: 600; font-size: 13px; }
td .row { gap: 6px; }
.tag { display: inline-block; padding: 1px 8px; border-radius: 99px; border: 1px solid var(--line); font-size: 13px; margin: 0 4px 4px 0; white-space: nowrap; }
.scroll { overflow-x: auto; }
.hidden { display: none !important; }
footer { color: var(--muted); font-size: 13px; text-align: center; margin-top: 24px; }
.mt { margin-top: 10px; }
label.stack input { flex: none; }