:root {
  --bg: #ffffff;
  --bg-soft: #f5f7fb;
  --fg: #111827;
  --muted: #5b6474;
  --line: #e3e7ef;
  --accent: #2456e6;
  --accent-fg: #ffffff;
  --high: #d93025;
  --medium: #e08600;
  --ok: #1e8e3e;
  --card: #ffffff;
  --shadow: 0 10px 30px rgba(17, 24, 39, 0.08);
  color-scheme: light dark;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0d1117;
    --bg-soft: #151b24;
    --fg: #e8ecf2;
    --muted: #9aa4b2;
    --line: #273040;
    --accent: #6d93ff;
    --accent-fg: #0d1117;
    --high: #ff6b5e;
    --medium: #ffb347;
    --ok: #4cc27a;
    --card: #151b24;
    --shadow: 0 10px 30px rgba(0, 0, 0, 0.35);
  }
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font: 16px/1.6 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}
a { color: var(--accent); }
.wrap { max-width: 1040px; margin: 0 auto; padding: 0 20px; }

/* Header */
header.top { border-bottom: 1px solid var(--line); }
header.top .wrap { display: flex; align-items: center; justify-content: space-between; height: 64px; gap: 16px; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 800; font-size: 18px; color: var(--fg); text-decoration: none; }
.brand svg { width: 28px; height: 28px; }
nav.links { display: flex; gap: 20px; font-size: 15px; }
nav.links a { color: var(--muted); text-decoration: none; }
nav.links a:hover { color: var(--fg); }

/* Buttons */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 12px 20px; border-radius: 10px; border: 1px solid transparent;
  font: inherit; font-weight: 700; text-decoration: none; cursor: pointer;
}
.btn.primary { background: var(--accent); color: var(--accent-fg); }
.btn.ghost { background: transparent; color: var(--fg); border-color: var(--line); }
.btn[aria-disabled="true"] { opacity: 0.6; cursor: default; }

/* Hero */
.hero { padding: 72px 0 48px; }
.hero .wrap { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 48px; align-items: center; }
.eyebrow { color: var(--accent); font-weight: 700; font-size: 14px; letter-spacing: 0.04em; text-transform: uppercase; margin: 0 0 12px; }
h1 { font-size: clamp(34px, 5vw, 52px); line-height: 1.1; margin: 0 0 18px; letter-spacing: -0.02em; }
.lead { font-size: 19px; color: var(--muted); margin: 0 0 28px; }
.cta { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; }
.small { font-size: 14px; color: var(--muted); }

.mock { background: var(--card); border: 1px solid var(--line); border-radius: 14px; box-shadow: var(--shadow); padding: 18px; }
.mock .field { border: 1px solid var(--line); border-radius: 8px; padding: 10px 12px; margin-bottom: 14px; }
.mock .field.bad { border: 2px solid var(--high); }
.mock .label { font-size: 12px; color: var(--muted); margin-bottom: 4px; }
mark.risk { background: color-mix(in srgb, var(--high) 18%, transparent); color: inherit; border-radius: 3px; padding: 0 2px; }
.finding { border-left: 3px solid var(--high); padding: 6px 10px; margin-top: 8px; font-size: 14px; }
.finding.medium { border-color: var(--medium); }
.finding.low { border-color: var(--muted); }
.finding strong { display: block; }
.finding small { color: var(--muted); }
.tag { font-size: 11px; font-weight: 700; color: #fff; background: var(--high); border-radius: 4px; padding: 1px 6px; margin-right: 6px; }

/* Sections */
section { padding: 64px 0; }
section.soft { background: var(--bg-soft); }
h2 { font-size: clamp(26px, 3.5vw, 34px); line-height: 1.2; margin: 0 0 12px; letter-spacing: -0.01em; }
.sub { color: var(--muted); margin: 0 0 32px; max-width: 640px; }
.grid3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 14px; padding: 22px; }
.card h3 { margin: 0 0 8px; font-size: 18px; }
.card p { margin: 0; color: var(--muted); }
.num { width: 32px; height: 32px; border-radius: 50%; background: var(--accent); color: var(--accent-fg); display: grid; place-items: center; font-weight: 800; margin-bottom: 12px; }

/* Checker */
.checker { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; align-items: start; }
.checker textarea, .checker select {
  width: 100%; font: inherit; color: inherit; background: var(--card);
  border: 1px solid var(--line); border-radius: 10px; padding: 12px;
}
.checker textarea { min-height: 150px; resize: vertical; }
.checker label { display: block; font-weight: 600; margin: 0 0 6px; }
.checker .row { margin-bottom: 14px; }
#results { min-height: 120px; }
#results .ok { color: var(--ok); font-weight: 700; }
#results .note { color: var(--muted); }

/* Pricing */
.plans { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; max-width: 760px; }
.plan { background: var(--card); border: 1px solid var(--line); border-radius: 16px; padding: 26px; display: flex; flex-direction: column; }
.plan.pro { border: 2px solid var(--accent); box-shadow: var(--shadow); }
.plan h3 { margin: 0; font-size: 20px; }
.price { font-size: 40px; font-weight: 800; margin: 10px 0 2px; }
.price span { font-size: 16px; font-weight: 500; color: var(--muted); }
.plan ul { padding-left: 20px; margin: 16px 0 24px; flex: 1; }
.plan li { margin: 6px 0; }
.plan .btn { width: 100%; }

/* FAQ */
details { border-bottom: 1px solid var(--line); padding: 16px 0; }
details summary { font-weight: 700; cursor: pointer; }
details p { color: var(--muted); margin: 10px 0 0; }

/* Legal pages */
.legal { padding: 48px 0 72px; max-width: 760px; }
.legal h1 { font-size: 36px; }
.legal h2 { font-size: 22px; margin-top: 32px; }
.legal p, .legal li { color: var(--fg); }

footer { border-top: 1px solid var(--line); padding: 32px 0; color: var(--muted); font-size: 14px; }
footer .wrap { display: flex; flex-wrap: wrap; gap: 16px; justify-content: space-between; }
footer nav { display: flex; flex-wrap: wrap; gap: 16px; }
footer a { color: var(--muted); }

@media (max-width: 820px) {
  .hero .wrap, .checker, .plans, .grid3 { grid-template-columns: 1fr; }
  .hero { padding-top: 48px; }
  nav.links { display: none; }
}