:root { color-scheme: light dark; }
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Display", system-ui, sans-serif;
  background: #12131a;
  color: #f2f3f7;
  line-height: 1.45;
}
main { max-width: 680px; margin: 0 auto; padding: 28px 18px 64px; }
h1 { font-size: 28px; letter-spacing: -0.03em; margin: 0 0 8px; }
h2 { font-size: 18px; margin: 28px 0 8px; }
p, li { font-size: 15px; color: rgba(242, 243, 247, .82); }
a { color: #ffd60a; }
.card {
  background: #1e1f27;
  border: 0.5px solid rgba(255, 255, 255, .1);
  border-radius: 16px;
  padding: 14px;
  margin-top: 14px;
}
label { display: block; font-size: 12px; font-weight: 650; letter-spacing: .04em; text-transform: uppercase; color: rgba(242,243,247,.55); margin: 12px 0 6px; }
input, textarea {
  width: 100%;
  background: #12131a;
  color: #fff;
  border: 0.5px solid rgba(255,255,255,.14);
  border-radius: 12px;
  padding: 12px;
  font: inherit;
}
button {
  width: 100%;
  margin-top: 12px;
  border: none;
  border-radius: 980px;
  padding: 13px;
  font: inherit;
  font-weight: 700;
  background: linear-gradient(135deg, #ffd60a, #ff9f0a);
  color: #231a00;
  cursor: pointer;
}
button.ghost { background: #2a2b34; color: #fff; }
.note { font-size: 13px; color: rgba(242,243,247,.55); }
.err { color: #ff5b52; font-size: 14px; }
.ok { color: #32d158; font-size: 14px; }