:root {
  --bg: #f6f5f1; --panel: #ffffff; --ink: #16181d; --muted: #5d6270; --line: #dcdad3;
  --accent: #0f7a4f; --accent-ink: #ffffff; --warn: #a13a1b;
  --mono: ui-monospace, "SF Mono", "JetBrains Mono", Menlo, Consolas, monospace;
  --sans: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}
@media (prefers-color-scheme: dark) {
  :root { --bg: #0e1013; --panel: #161a1f; --ink: #e8eaee; --muted: #9aa1ad; --line: #272c34; --accent: #3ddc97; --accent-ink: #06140d; --warn: #ff8a65; }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--bg); color: var(--ink); font: 16px/1.55 var(--sans); }
a { color: var(--accent); }
code { font-family: var(--mono); font-size: .9em; }
main, .top, footer { max-width: 1120px; margin: 0 auto; padding: 0 16px; }

.top { display: flex; justify-content: space-between; align-items: center; gap: 16px; padding-top: 20px; padding-bottom: 20px; flex-wrap: wrap; }
.logo { font: 700 20px var(--mono); color: var(--ink); text-decoration: none; letter-spacing: -.02em; }
.logo span { color: var(--accent); }
.top nav { display: flex; gap: 18px; font: 14px var(--mono); }
.top nav a { color: var(--muted); text-decoration: none; }
.top nav a:hover { color: var(--ink); }

.hero { padding: 40px 0 32px; border-bottom: 1px solid var(--line); }
h1 { font-size: clamp(32px, 6vw, 56px); line-height: 1.05; letter-spacing: -.03em; margin: 0 0 16px; max-width: 16ch; }
h1 em { font-style: normal; color: var(--accent); }
.hero > p { color: var(--muted); max-width: 60ch; font-size: 18px; margin: 0 0 24px; }
h2 { font-size: 28px; letter-spacing: -.02em; margin: 48px 0 8px; }
h2 small { font: 13px var(--mono); color: var(--muted); margin-left: 8px; letter-spacing: 0; }
.lede { color: var(--muted); margin: 0 0 24px; max-width: 70ch; }

.signup { max-width: 560px; }
.signup label { display: block; font-weight: 600; margin-bottom: 8px; }
.signup .row { display: flex; gap: 8px; }
.signup input[type=email] { flex: 1; min-width: 0; padding: 12px 14px; font: 16px var(--sans); color: var(--ink); background: var(--panel); border: 1px solid var(--line); border-radius: 8px; }
.signup input:focus-visible, button:focus-visible, a:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.signup small { display: block; color: var(--muted); margin-top: 8px; }
button, .button { display: inline-block; padding: 12px 18px; font: 600 15px var(--sans); color: var(--accent-ink); background: var(--accent); border: 0; border-radius: 8px; cursor: pointer; text-decoration: none; }
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; }
.flash { padding: 10px 14px; border-radius: 8px; border: 1px solid; max-width: 560px; }
.flash.ok { color: var(--accent); border-color: var(--accent); }
.flash.err { color: var(--warn); border-color: var(--warn); }

.tiers { display: grid; grid-template-columns: repeat(auto-fill, minmax(320px, 1fr)); gap: 16px; }
.tier { background: var(--panel); border: 1px solid var(--line); border-radius: 12px; padding: 20px; display: flex; flex-direction: column; gap: 12px; }
.tier header { display: grid; gap: 4px; }
.budget { font: 700 13px var(--mono); color: var(--accent); }
.tier h3 { margin: 0; font-size: 19px; line-height: 1.25; }
.target { margin: 0; color: var(--muted); font-size: 14px; }
.tier dl { margin: 0; display: grid; gap: 6px; font-size: 14px; }
.tier dl div { display: grid; grid-template-columns: 92px 1fr; gap: 8px; }
.tier dt { color: var(--muted); font: 12px/1.9 var(--mono); text-transform: uppercase; }
.tier dd { margin: 0; }
.tier dd small { display: block; color: var(--muted); }
.tier table { width: 100%; border-collapse: collapse; font: 15px var(--mono); text-align: center; }
.tier caption { text-align: left; font: 12px var(--mono); color: var(--muted); text-transform: uppercase; padding-bottom: 4px; }
.tier th { font-weight: 400; color: var(--muted); font-size: 12px; padding: 6px 0; border-bottom: 1px solid var(--line); }
.tier td { padding: 8px 0; font-size: 20px; font-weight: 700; font-variant-numeric: tabular-nums; }
.nofit { color: var(--muted); font-weight: 400; }
.value { margin: 0; font-size: 14px; }
.value strong { font: 700 16px var(--mono); color: var(--accent); }
.why { margin: 0; font-size: 14px; }
.src { margin: auto 0 0; font-size: 12px; color: var(--muted); }

#method p { max-width: 75ch; }
.cta { margin: 48px 0; padding: 24px; background: var(--panel); border: 1px solid var(--line); border-radius: 12px; }
.cta h2 { margin-top: 0; }
footer { padding-top: 24px; padding-bottom: 40px; color: var(--muted); font-size: 13px; border-top: 1px solid var(--line); }

@media (max-width: 480px) {
  .signup .row { flex-direction: column; }
  .tiers { grid-template-columns: 1fr; }
}