/* Free-tool landing page. Mobile-first, system fonts, no external requests. */
:root {
  --bg: #ffffff;
  --ink: #16202a;
  --ink-2: #4d5b66;
  --line: #e1e6ea;
  --accent: #1f6f5c;
  --accent-soft: #e6f2ee;
  --font: "Segoe UI", system-ui, -apple-system, Roboto, Arial, sans-serif;
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--ink); font: 17px/1.6 var(--font); }
.wrap { max-width: 720px; margin: 0 auto; padding-left: 16px; padding-right: 16px; }
main section { padding-top: 24px; padding-bottom: 24px; border-top: 1px solid var(--line); }
main section:first-child { border-top: 0; padding-top: 32px; }
a { color: var(--accent); }
h1 { font-size: 30px; line-height: 1.15; margin: 8px 0 12px; text-wrap: balance; }
h2 { font-size: 22px; margin: 0 0 12px; }
.kicker { margin: 0; font-size: 14px; font-weight: 700; letter-spacing: .04em; text-transform: uppercase; color: var(--accent); }
.lead { font-size: 18px; color: var(--ink-2); max-width: 60ch; }
.muted { color: var(--ink-2); font-size: 15px; }
.btn { display: inline-block; background: var(--accent); color: #fff; border: 0; font: inherit; font-weight: 600; text-decoration: none; padding: 12px 20px; border-radius: 8px; cursor: pointer; }
.steps, .inside { padding-left: 22px; display: grid; gap: 10px; margin: 0; }
.steps li::marker { font-weight: 700; color: var(--accent); }

form { background: var(--accent-soft); border-radius: 12px; padding: 16px; margin-bottom: 12px; }
.field { margin: 0 0 12px; display: grid; gap: 4px; }
label { font-weight: 600; }
input[type="email"] { width: 100%; font: inherit; padding: 10px 12px; border: 1px solid var(--ink-2); border-radius: 8px; background: #fff; color: var(--ink); }
.check-row { display: flex; gap: 10px; align-items: flex-start; margin: 0 0 16px; }
.check-row input { width: 20px; height: 20px; margin-top: 3px; flex: none; accent-color: var(--accent); }
.check-row label { font-weight: 400; }
.msg { margin: 12px 0 0; font-weight: 600; color: var(--accent); }
.msg:empty { display: none; }

a:focus-visible, button:focus-visible, input:focus-visible {
  outline: 3px solid var(--ink);
  outline-offset: 2px;
}

footer { padding-top: 20px; padding-bottom: 40px; border-top: 1px solid var(--line); }

@media (min-width: 600px) {
  body { font-size: 18px; }
  .wrap { padding-left: 24px; padding-right: 24px; }
  h1 { font-size: 44px; }
  h2 { font-size: 26px; }
  main section { padding-top: 32px; padding-bottom: 32px; }
  form { padding: 24px; }
}