:root {
  --ink: #1B1F27;
  --muted: #6B7280;
  --line: #E3E6EB;
  --ground: #F5F6F8;
  --card: #FFFFFF;
  --accent: #2F5BEA;
  --accent-ink: #FFFFFF;
  --bad: #B42318;
  --bad-soft: #FDECEA;
  --ok: #067647;
  --warn-soft: #FDF1DF;
  --warn: #8A4B08;
}
@media (prefers-color-scheme: dark) {
  :root {
    --ink: #E8EAEE; --muted: #9AA1AD; --line: #2B303A; --ground: #12151B; --card: #1A1E26;
    --accent: #6E8EF5; --accent-ink: #0E1117; --bad: #F2867C; --bad-soft: #3A1F1E; --ok: #5FD0A0; --warn-soft: #3A2C17; --warn: #F2C27C;
  }
}
* { box-sizing: border-box; }
body {
  margin: 0; background: var(--ground); color: var(--ink);
  font: 15px/1.55 "IBM Plex Sans", "Segoe UI", system-ui, -apple-system, Helvetica, Arial, sans-serif;
}
a { color: var(--accent); }
.top { display: flex; align-items: center; justify-content: space-between; max-width: 1120px; margin: 0 auto; padding: 18px 16px; }
.top nav { display: flex; align-items: center; gap: 18px; }
.top nav a:not(.button) { color: var(--ink); text-decoration: none; font-weight: 500; }
.brand { font-weight: 600; font-size: 16px; color: var(--ink); text-decoration: none; }
.brand span { color: var(--muted); font-weight: 400; }
main { max-width: 1120px; margin: 0 auto; padding: 8px 16px 48px; }
main.narrow { max-width: 520px; padding-top: 40px; display: flex; flex-direction: column; gap: 20px; }
.hero { display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr); gap: 40px; align-items: start; padding-top: 24px; }
@media (max-width: 860px) { .hero { grid-template-columns: 1fr; gap: 24px; } }
h1 { font-size: clamp(28px, 4vw, 40px); line-height: 1.15; margin: 0 0 16px; letter-spacing: -0.01em; }
main.narrow h1 { font-size: 22px; }
h2 { font-size: 19px; margin: 0 0 6px; }
h3 { font-size: 17px; margin: 0 0 8px; }
.lead { font-size: 17px; color: var(--muted); margin: 0 0 20px; }
.points { margin: 0 0 18px; padding-left: 20px; display: grid; gap: 10px; }
.forms { display: grid; gap: 16px; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 14px; padding: 22px; }
form { display: grid; gap: 12px; margin-top: 12px; }
label { display: grid; gap: 5px; font-size: 14px; font-weight: 500; }
label.check { display: flex; gap: 9px; align-items: flex-start; font-weight: 400; }
label.check input { margin-top: 4px; }
input:not([type=checkbox]) {
  height: 42px; border: 1px solid var(--line); border-radius: 10px; padding: 0 12px; font: inherit; color: var(--ink); background: var(--card);
}
input:focus-visible, button:focus-visible, a:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.hint { font-weight: 400; font-size: 12.5px; color: var(--muted); }
button, .button {
  display: inline-flex; align-items: center; justify-content: center; height: 44px; padding: 0 18px; border-radius: 10px; border: 0;
  background: var(--accent); color: var(--accent-ink); font: inherit; font-weight: 600; text-decoration: none; cursor: pointer;
}
button.secondary, .button.secondary { background: transparent; color: var(--ink); border: 1px solid var(--line); }
.button.small { height: 36px; padding: 0 14px; font-size: 14px; }
button:disabled { opacity: 0.6; cursor: progress; }
.error { color: var(--bad); background: var(--bad-soft); border-radius: 8px; padding: 9px 12px; margin: 0; font-size: 14px; }
.ok { color: var(--ok); margin: 0; }
.note { border-radius: 10px; padding: 12px 14px; }
.note.warn { background: var(--warn-soft); color: var(--warn); }
.muted { color: var(--muted); }
.small { font-size: 13.5px; }
.actions { display: flex; gap: 10px; flex-wrap: wrap; margin-bottom: 0; }
footer { max-width: 1120px; margin: 0 auto; padding: 24px 16px 40px; display: flex; gap: 18px; flex-wrap: wrap; color: var(--muted); font-size: 13.5px; }
footer a { color: var(--muted); }
.steps, .inside { margin-top: 48px; }
.steps h2, .inside h2 { font-size: 22px; margin-bottom: 14px; }
.steps ol { margin: 0; padding-left: 22px; display: grid; gap: 8px; max-width: 820px; }
.tiles { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 14px; }
.tile { background: var(--card); border: 1px solid var(--line); border-radius: 14px; padding: 18px; }
.tile h3 { font-size: 15px; margin: 0 0 6px; }
.tile p { margin: 0; color: var(--muted); font-size: 14px; }
.prose h2 { font-size: 16px; margin: 22px 0 6px; }
.prose ul { padding-left: 20px; margin: 0 0 10px; display: grid; gap: 6px; }
.prose p { margin: 0 0 10px; }
[hidden] { display: none !important; }