:root {
  --bg: #12171d; --panel: #1a222b; --line: #2a3542; --text: #d6dee6; --muted: #8a97a5;
  --accent: #6cc4f5; --low: #6cc4f5; --mid: #c9ad6e; --high: #e07a4f;
  color-scheme: dark;
}
@media (prefers-color-scheme: light) {
  :root { --bg: #f6f7f9; --panel: #fff; --line: #dde2e8; --text: #1b2430; --muted: #5b6876; --accent: #1a73b8; --low: #1a73b8; --mid: #93712b; --high: #b8461c; color-scheme: light; }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--bg); color: var(--text); font: 16px/1.6 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; }
a { color: var(--accent); }
.wrap { max-width: 760px; margin: 0 auto; padding: 0 16px; }
header.site { border-bottom: 1px solid var(--line); }
header.site .wrap { display: flex; align-items: center; justify-content: space-between; height: 56px; }
.logo { font-weight: 700; color: var(--text); text-decoration: none; letter-spacing: -0.01em; }
.logo span { color: var(--high); }
nav a { color: var(--muted); text-decoration: none; margin-left: 20px; font-size: 15px; }
nav a:hover { color: var(--text); }
.hero { padding: 64px 0 40px; }
h1 { font-size: clamp(32px, 6vw, 48px); line-height: 1.1; margin: 0 0 16px; letter-spacing: -0.02em; }
.lede { font-size: 19px; color: var(--muted); max-width: 36em; margin: 0 0 28px; }
.btn { display: inline-block; padding: 10px 18px; border-radius: 6px; background: var(--accent); color: #0b1a26; font-weight: 600; text-decoration: none; }
.btn[aria-disabled="true"] { opacity: 0.6; pointer-events: none; }
.note { color: var(--muted); font-size: 14px; margin-left: 12px; }
section { padding: 32px 0; border-top: 1px solid var(--line); }
h2 { font-size: 22px; margin: 0 0 16px; }
.preview { background: var(--panel); border: 1px solid var(--line); border-radius: 8px; padding: 16px 20px; font-size: 14px; }
.preview .k { color: var(--muted); font-size: 11px; text-transform: uppercase; letter-spacing: 0.04em; display: inline-block; width: 110px; }
.scale { list-style: none; padding: 0; margin: 0; display: grid; gap: 8px; }
.scale li { display: grid; grid-template-columns: 32px 110px 1fr; gap: 8px; align-items: baseline; padding: 10px 14px; background: var(--panel); border: 1px solid var(--line); border-radius: 6px; }
.scale b { font-variant-numeric: tabular-nums; color: var(--muted); }
.low { color: var(--low); } .mid { color: var(--mid); } .high { color: var(--high); }
@media (max-width: 520px) { .scale li { grid-template-columns: 24px 1fr; } .scale li span:last-child { grid-column: 2; } }
.steps { padding-left: 20px; } .steps li { margin-bottom: 8px; }
dl dt { font-weight: 600; margin-top: 16px; } dl dd { margin: 4px 0 0; color: var(--muted); }
footer { border-top: 1px solid var(--line); padding: 24px 0 40px; color: var(--muted); font-size: 14px; }
footer a { color: var(--muted); }
.prose h2 { margin-top: 32px; } .prose p, .prose li { color: var(--text); }
.visually-hidden { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.search { width: 100%; font: inherit; font-size: 17px; padding: 12px 14px; border: 1px solid var(--line); border-radius: 6px; background: var(--panel); color: var(--text); }
.search:focus { outline: 2px solid var(--accent); outline-offset: 1px; border-color: transparent; }
.search:disabled { opacity: 0.6; }
.search-status { color: var(--muted); font-size: 14px; margin: 10px 0; }
.results { list-style: none; padding: 0; margin: 0; display: grid; gap: 6px; }
.results li { display: flex; flex-wrap: wrap; align-items: baseline; gap: 4px 12px; padding: 10px 14px; background: var(--panel); border: 1px solid var(--line); border-radius: 6px; }
.results a { font-weight: 600; text-decoration: none; color: var(--text); flex: 1 1 14em; min-width: 0; overflow-wrap: anywhere; }
.results a:hover { color: var(--accent); }
.results .score { font-weight: 600; }
.results .meta { color: var(--muted); font-size: 14px; }
.also { margin: 16px 0 0; font-size: 15px; color: var(--muted); }
.copy-row { display: flex; gap: 8px; align-items: stretch; margin: 8px 0 4px; max-width: 100%; }
.copy-row code { flex: 1 1 auto; min-width: 0; overflow-wrap: anywhere; font: 14px/1.4 ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; padding: 8px 10px; background: var(--panel); border: 1px solid var(--line); border-radius: 6px; user-select: all; }
.copy { flex: none; font: inherit; font-size: 14px; font-weight: 600; padding: 0 14px; border: 0; border-radius: 6px; background: var(--accent); color: #0b1a26; cursor: pointer; min-width: 74px; }
.hint { display: block; color: var(--muted); font-size: 14px; }