:root {
  --ink: #0f1b2d;
  --muted: #55657a;
  --line: #dce4ee;
  --soft: #f3f7fb;
  --card: #ffffff;
  --page: #ffffff;
  --accent: #0a84c6;
  --accent-dark: #086a9f;
  --warn-bg: #fff7e6;
  --warn-line: #efd9a6;
}
@media (prefers-color-scheme: dark) {
  :root {
    --ink: #e8eef6;
    --muted: #9aaabd;
    --line: #26354a;
    --soft: #111c2b;
    --card: #152235;
    --page: #0b1420;
    --accent: #3aa6e6;
    --accent-dark: #6bbdf0;
    --warn-bg: #2a2412;
    --warn-line: #5a4a1c;
  }
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  font-size: 17px;
  line-height: 1.6;
  color: var(--ink);
  background: var(--page);
}
a { color: var(--accent); }
a:hover { color: var(--accent-dark); }
.wrap { max-width: 1040px; margin: 0 auto; padding: 0 20px; }
.narrow { max-width: 740px; }

/* header */
header.site { border-bottom: 1px solid var(--line); background: var(--page); position: sticky; top: 0; z-index: 10; }
header.site .wrap { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding-top: 12px; padding-bottom: 12px; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 800; font-size: 20px; color: var(--ink); text-decoration: none; letter-spacing: -.01em; }
.brand img { width: 32px; height: 32px; border-radius: 7px; }
.brand span b { color: var(--accent); }
nav.top { display: flex; gap: 20px; flex-wrap: wrap; font-size: 15px; }
nav.top a { color: var(--muted); text-decoration: none; }
nav.top a:hover { color: var(--ink); }

/* hero */
.hero { padding: 72px 0 56px; background: radial-gradient(900px 340px at 85% -10%, rgba(10, 132, 198, .14), transparent 70%), var(--page); }
.hero h1 { font-size: clamp(34px, 5.4vw, 56px); line-height: 1.08; margin: 0 0 18px; letter-spacing: -.02em; max-width: 14em; }
.hero p.lead { font-size: 20px; color: var(--muted); max-width: 36em; margin: 0 0 28px; }
.cta { display: flex; gap: 12px; flex-wrap: wrap; align-items: center; }
.btn { display: inline-block; padding: 12px 22px; border-radius: 10px; font-weight: 700; text-decoration: none; border: 1px solid var(--accent); background: var(--accent); color: #fff; font-size: 16px; }
.btn:hover { background: var(--accent-dark); border-color: var(--accent-dark); color: #fff; }
.btn.ghost { background: transparent; color: var(--accent); }
.btn.ghost:hover { background: var(--soft); color: var(--accent-dark); }
.btn.off { background: var(--soft); border-color: var(--line); color: var(--muted); cursor: default; }
.note { color: var(--muted); font-size: 14px; margin-top: 12px; }

/* sections */
section.block { padding: 56px 0; }
section.block.alt { background: var(--soft); }
h2 { font-size: clamp(26px, 3.6vw, 34px); line-height: 1.15; margin: 0 0 10px; letter-spacing: -.015em; }
h3 { font-size: 18px; margin: 0 0 6px; }
.sub { color: var(--muted); max-width: 40em; margin: 0 0 30px; }
.grid { display: grid; gap: 16px; grid-template-columns: repeat(auto-fit, minmax(290px, 1fr)); }
.grid.two { grid-template-columns: repeat(2, 1fr); }
@media (max-width: 720px) { .grid.two { grid-template-columns: 1fr; } }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 14px; padding: 20px 22px; }
.card p { margin: 0; color: var(--muted); font-size: 16px; }
.card .tag { display: inline-block; font-size: 12px; font-weight: 700; letter-spacing: .04em; text-transform: uppercase; color: var(--accent); margin-bottom: 6px; }

/* steps */
.steps { display: grid; gap: 16px; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); counter-reset: s; padding: 0; list-style: none; margin: 0; }
.steps li { counter-increment: s; background: var(--card); border: 1px solid var(--line); border-radius: 14px; padding: 20px 22px; }
.steps li::before { content: counter(s); display: inline-grid; place-items: center; width: 30px; height: 30px; border-radius: 50%; background: var(--accent); color: #fff; font-weight: 800; margin-bottom: 10px; }
.steps p { margin: 0; color: var(--muted); font-size: 16px; }

/* pricing */
.price { max-width: 520px; }
.price .big { font-size: 30px; font-weight: 800; letter-spacing: -.01em; margin: 4px 0 8px; }
.price ul { padding-left: 20px; margin: 12px 0 0; color: var(--muted); }
.price li { margin: 4px 0; }

/* honesty box */
.callout { background: var(--warn-bg); border: 1px solid var(--warn-line); border-radius: 14px; padding: 20px 24px; }
.callout h2 { font-size: 22px; }
.callout ul { margin: 8px 0 0; padding-left: 20px; }
.callout li { margin: 6px 0; }

/* faq */
details { background: var(--card); border: 1px solid var(--line); border-radius: 12px; padding: 14px 18px; margin: 0 0 10px; }
details summary { cursor: pointer; font-weight: 700; }
details p { margin: 10px 0 0; color: var(--muted); }

/* footer */
footer.site { border-top: 1px solid var(--line); padding: 32px 0 44px; color: var(--muted); font-size: 14px; }
footer.site .links { display: flex; gap: 18px; flex-wrap: wrap; margin-bottom: 12px; }
footer.site a { color: var(--muted); }
footer.site a:hover { color: var(--ink); }
footer.site p { margin: 6px 0; max-width: 52em; }

/* legal pages */
.doc { padding: 44px 0 56px; }
.doc h1 { font-size: 34px; margin: 0 0 6px; letter-spacing: -.015em; }
.doc .updated { color: var(--muted); margin: 0 0 28px; }
.doc h2 { font-size: 22px; margin: 30px 0 8px; }
.doc p, .doc li { color: var(--ink); }
.doc ul { padding-left: 22px; }
mark.todo { background: #ffe66d; color: #3a2f00; padding: 0 4px; border-radius: 3px; }

@media (max-width: 560px) {
  body { font-size: 16px; }
  .hero { padding-top: 44px; }
  nav.top { gap: 14px; }
}