:root {
  --bg: #0f1114;
  --surface: #1a1d22;
  --text: #e8eaed;
  --muted: #9aa0a6;
  --accent: #c8cdd4;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  min-height: 100vh;
}
.wrap { max-width: 720px; margin: 0 auto; padding: 3rem 1.5rem 4rem; }
h1 { font-size: 1.75rem; margin-bottom: 0.25rem; }
.meta { color: var(--muted); font-size: 0.875rem; margin-bottom: 2rem; }
h2 { font-size: 1.125rem; color: var(--accent); margin: 1.75rem 0 0.5rem; }
p, li { color: var(--muted); margin-bottom: 0.75rem; }
ul, ol { margin: 0.5rem 0 1rem 1.25rem; }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
.back { display: inline-block; margin-bottom: 1.5rem; font-size: 0.875rem; }
label { display: block; color: var(--muted); font-size: 0.8rem; margin-bottom: 0.35rem; }
input {
  width: 100%; padding: 12px 14px; margin-bottom: 12px;
  border: 1px solid #2a2f38; background: var(--surface); color: var(--text);
  font: inherit; border-radius: 8px;
}
.btn {
  display: inline-block; padding: 12px 18px; border-radius: 8px;
  background: var(--accent); color: var(--bg); font-weight: 600; border: 0; cursor: pointer;
}
.card {
  background: var(--surface); padding: 16px 18px; border-radius: 10px; margin: 1rem 0;
}