:root {
  --ink: #12181f; --muted: #5b6672; --line: #e3e8ee;
  --bg: #ffffff; --soft: #f6f8fa; --accent: #1f6feb; --ok: #0b7a3b; --err: #b3261e;
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--ink);
  font: 16px/1.6 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; }
header.site { display: flex; justify-content: space-between; align-items: center;
  padding: 1rem 1.5rem; border-bottom: 1px solid var(--line); }
.brand { font-weight: 700; font-size: 1.15rem; text-decoration: none; color: var(--ink); }
.brand span { color: var(--muted); font-weight: 400; }
section { max-width: 62rem; margin: 0 auto; padding: 3rem 1.5rem; }
h1 { font-size: clamp(1.9rem, 4vw, 2.6rem); line-height: 1.2; margin: 0 0 .75rem; }
h2 { font-size: 1.5rem; margin: 0 0 1.25rem; }
.hero p { color: var(--muted); font-size: 1.1rem; max-width: 40rem; }
.btn { display: inline-block; padding: .6rem 1.1rem; border-radius: 8px;
  text-decoration: none; font-weight: 600; border: 1px solid transparent; cursor: pointer; }
.btn-primary { background: var(--accent); color: #fff; }
.btn-ghost { border-color: var(--line); color: var(--ink); }
.included ul { list-style: none; padding: 0; display: grid; gap: .6rem; }
.included li { padding-left: 1.4rem; position: relative; }
.included li::before { content: "\2713"; position: absolute; left: 0; color: var(--ok); }
.grid { display: grid; gap: 1.25rem; grid-template-columns: repeat(auto-fit, minmax(15rem, 1fr)); }
.plan { border: 1px solid var(--line); border-radius: 12px; padding: 1.5rem; background: var(--soft); }
.plan.featured { border-color: var(--accent); background: #fff;
  box-shadow: 0 6px 22px rgba(31,111,235,.12); }
.plan h3 { margin: 0 0 .5rem; }
.price { font-size: 2rem; font-weight: 700; margin: .25rem 0 0; }
.price span { font-size: .95rem; font-weight: 400; color: var(--muted); }
.annual { color: var(--muted); margin: .1rem 0 1rem; }
.plan ul { list-style: none; padding: 0; margin: 0; display: grid; gap: .4rem; }
.faq h3 { margin: 1.5rem 0 .35rem; font-size: 1.05rem; }
.faq p { margin: 0; color: var(--muted); }
form { display: grid; gap: 1rem; max-width: 34rem; }
label { display: grid; gap: .35rem; font-weight: 600; }
input, textarea { font: inherit; padding: .6rem .7rem; border: 1px solid var(--line);
  border-radius: 8px; background: #fff; color: var(--ink); }
.ok  { color: var(--ok);  font-weight: 600; }
.err { color: var(--err); font-weight: 600; }
footer.site { border-top: 1px solid var(--line); padding: 2rem 1.5rem;
  color: var(--muted); text-align: center; }
footer.site a { color: var(--accent); }
@media (prefers-color-scheme: dark) {
  :root { --ink: #e6edf3; --muted: #9aa7b2; --line: #2a323c;
          --bg: #0d1117; --soft: #161b22; --accent: #4c8dff; }
  .plan.featured { background: #11161d; }
  input, textarea { background: #0d1117; }
}