:root {
  --bg: #fbf7f4;
  --ink: #2d1b2e;
  --muted: #6b5360;
  --line: #ead4db;
  --accent: #a85a76;
  --card: #ffffff;
}
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--ink);
  line-height: 1.6;
}
header, main, footer { max-width: 760px; margin: 0 auto; padding: 0 20px; }
header { padding-top: 28px; }
nav { display: flex; flex-wrap: wrap; gap: 10px 16px; margin: 12px 0 24px; }
nav a { color: var(--accent); text-decoration: none; font-size: 14px; }
nav a:hover { text-decoration: underline; }
h1 { font-size: 28px; line-height: 1.25; margin: 0 0 8px; }
h2 { font-size: 18px; margin: 28px 0 8px; }
p, li { color: var(--ink); }
.muted { color: var(--muted); font-size: 14px; }
.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 22px;
  margin-bottom: 40px;
}
label { display: block; font-weight: 600; margin: 14px 0 6px; }
input, textarea, button {
  width: 100%;
  font: inherit;
  border-radius: 10px;
  border: 1px solid var(--line);
  padding: 12px 14px;
}
textarea { min-height: 110px; resize: vertical; }
button {
  background: var(--accent);
  color: #fff;
  border: 0;
  font-weight: 600;
  cursor: pointer;
  margin-top: 16px;
}
.banner {
  background: #e8f6ec;
  border: 1px solid #b7e0c2;
  color: #1e5a32;
  border-radius: 12px;
  padding: 12px 14px;
  margin-bottom: 16px;
}
.banner.error { background: #fdecec; border-color: #f3c1c1; color: #8a1f1f; }
footer { padding: 8px 20px 40px; color: var(--muted); font-size: 13px; }