:root {
  --bg: #fbfaf7; --surface: #ffffff; --text: #1d1b18; --muted: #6b665e;
  --line: #e6e2da; --accent: #e8553a; --accent-text: #ffffff; --error: #b3261e;
  --radius: 12px;
}
@media (prefers-color-scheme: dark) {
  :root { --bg: #141312; --surface: #1d1c1a; --text: #f1eee8; --muted: #a39d93;
          --line: #33302c; --accent: #f06a4f; --error: #ff8a80; }
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--text);
  font: 17px/1.55 -apple-system, BlinkMacSystemFont, "Segoe UI", Inter, Roboto, sans-serif;
  min-height: 100vh; display: flex; flex-direction: column; }
main { flex: 1; width: 100%; max-width: 1040px; margin: 0 auto; padding: 0 16px; }
.top { display: flex; justify-content: space-between; align-items: center;
  max-width: 1040px; width: 100%; margin: 0 auto; padding: 20px 16px; }
.logo { font-weight: 800; font-size: 22px; letter-spacing: -0.03em; color: var(--text); text-decoration: none; }
.logo span { color: var(--accent); }
.btn { display: inline-block; background: var(--accent); color: var(--accent-text); border: 0;
  border-radius: 999px; padding: 9px 18px; font: inherit; font-weight: 600; font-size: 15px;
  text-decoration: none; cursor: pointer; }
.btn:hover { filter: brightness(1.06); }
.btn-ghost { background: transparent; color: var(--text); border: 1px solid var(--line); }
.btn-lg { padding: 13px 26px; font-size: 17px; }
.hero { padding: 72px 0 48px; max-width: 720px; }
.eyebrow { color: var(--accent); font-weight: 700; font-size: 14px; text-transform: uppercase; letter-spacing: .08em; margin: 0 0 12px; }
h1 { font-size: clamp(36px, 7vw, 60px); line-height: 1.05; letter-spacing: -0.035em; margin: 0 0 20px; }
.lead { font-size: 20px; color: var(--muted); margin: 0 0 32px; }
.features { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; padding: 24px 0 72px; }
.features article { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 20px; }
.features h2 { font-size: 17px; margin: 0 0 6px; }
.features p { margin: 0; color: var(--muted); font-size: 15px; }
.card { max-width: 400px; margin: 48px auto; background: var(--surface); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 28px; }
.card.wide { max-width: 640px; }
.card h1 { font-size: 30px; }
form { display: grid; gap: 16px; }
label { display: grid; gap: 6px; font-size: 14px; font-weight: 600; }
input { font: inherit; padding: 11px 12px; border-radius: 8px; border: 1px solid var(--line);
  background: var(--bg); color: var(--text); }
input:focus { outline: 2px solid var(--accent); outline-offset: 1px; }
.error { color: var(--error); margin: 0 0 12px; }
.muted { color: var(--muted); font-size: 14px; }
.foot { text-align: center; color: var(--muted); font-size: 13px; padding: 24px 16px; }
@media (max-width: 600px) { .features { grid-template-columns: 1fr; } .hero { padding-top: 40px; } }