:root {
  --bg: #0e1116; --panel: #161b22; --line: #2a313c; --text: #e6e9ee; --muted: #8b95a3; --accent: #6ea8fe;
  --ok: #3fb37f; --warn: #d9a441; --bad: #f06a6a; --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  color-scheme: dark;
}
@media (prefers-color-scheme: light) {
  :root { --bg: #f6f7f9; --panel: #ffffff; --line: #dde1e6; --text: #15191f; --muted: #5d6673; --accent: #1f5fd1; color-scheme: light; }
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--text); font: 15px/1.5 -apple-system, BlinkMacSystemFont, "Segoe UI", Inter, sans-serif; -webkit-text-size-adjust: 100%; }
main { max-width: 860px; margin: 0 auto; padding: 16px 16px 48px; }
a { color: var(--accent); }
h1 { font-size: 22px; margin: 8px 0 4px; }
h2 { font-size: 17px; margin: 0 0 10px; }
h3 { font-size: 16px; margin: 0 0 8px; }
.bar { display: flex; flex-wrap: wrap; align-items: center; gap: 8px 16px; padding: 10px 16px; border-bottom: 1px solid var(--line); background: var(--panel); }
.bar .brand { font-weight: 700; color: var(--text); text-decoration: none; }
.bar nav { display: flex; flex-wrap: wrap; gap: 4px 14px; align-items: center; }
.bar nav a { text-decoration: none; }
.lead { color: var(--muted); margin: 0 0 16px; }
.sub { color: var(--muted); margin: 0 0 8px; }
.small { font-size: 13px; }
.mono { font-family: var(--mono); overflow-wrap: anywhere; }
.count { color: var(--muted); font-weight: 400; }
.narrow { max-width: 440px; margin: 24px auto; }
.card { background: var(--panel); border: 1px solid var(--line); border-radius: 10px; padding: 14px 16px; margin: 0 0 14px; }
label { display: block; margin: 0 0 12px; color: var(--muted); font-size: 14px; }
label.inline { display: flex; gap: 8px; align-items: flex-start; color: var(--text); margin-bottom: 6px; }
input, select { display: block; width: 100%; margin-top: 4px; padding: 10px 12px; font: inherit; font-size: 16px; color: var(--text); background: var(--bg); border: 1px solid var(--line); border-radius: 8px; }
label.inline input { width: auto; margin-top: 4px; }
fieldset { border: 1px solid var(--line); border-radius: 8px; margin: 0 0 12px; padding: 8px 12px; }
legend { color: var(--muted); font-size: 14px; padding: 0 4px; }
button, .btn { display: inline-block; padding: 10px 16px; font: inherit; font-weight: 600; color: #fff; background: var(--accent); border: 0; border-radius: 8px; cursor: pointer; text-decoration: none; }
button:disabled { opacity: .5; cursor: default; }
button.danger { background: var(--bad); }
button.link { background: none; color: var(--accent); padding: 0; font-weight: 400; }
.msg { min-height: 1.5em; margin: 8px 0 0; }
.bad, .err { color: var(--bad); }
.warn { color: var(--warn); border-left: 3px solid var(--warn); padding-left: 10px; }
.empty { color: var(--muted); }
table { border-collapse: collapse; width: 100%; }
.kv th { text-align: left; font-weight: 400; color: var(--muted); padding: 5px 12px 5px 0; vertical-align: top; width: 46%; }
.kv td { padding: 5px 0; font-variant-numeric: tabular-nums; }
.kv tr + tr th, .kv tr + tr td { border-top: 1px solid var(--line); }
.review { margin-top: 14px; padding-top: 14px; border-top: 1px dashed var(--line); }
.review { overflow-wrap: anywhere; }
.fields { border-top: 1px solid var(--line); }
.frow { padding: 8px 0; border-bottom: 1px solid var(--line); }
.fname { color: var(--muted); font-size: 13px; }
.fval { font-weight: 600; font-size: 15px; }
.fnote { color: var(--muted); font-size: 13px; }
.summary { background: var(--bg); padding: 8px 10px; border-radius: 6px; font-size: 13px; }
.notes li { color: var(--warn); }
.compare { background: var(--bg); border: 1px solid var(--warn); border-radius: 8px; padding: 10px 12px 10px 30px; }
.timer { color: var(--muted); }
.result { margin-top: 10px; }