:root {
  --bg: #f6f1e8;
  --card: #fffaf2;
  --ink: #1f1a17;
  --muted: #6e6258;
  --line: #ddcfbf;
  --accent: #9f6a2f;
  --accent-dark: #7f531f;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: Georgia, serif;
  background: linear-gradient(180deg, #f8f3ea 0%, #efe4d4 100%);
  color: var(--ink);
}
.wrap { width: min(960px, calc(100% - 32px)); margin: 0 auto; }
.hero { padding: 72px 0 40px; border-bottom: 1px solid var(--line); }
.eyebrow { font-size: 12px; letter-spacing: 0.18em; text-transform: uppercase; color: var(--muted); }
h1, h2 { margin: 0 0 12px; }
h1 { font-size: clamp(2.2rem, 5vw, 4rem); line-height: 0.95; }
p { line-height: 1.6; }
.btn, button {
  display: inline-block;
  border: 0;
  background: var(--accent);
  color: #fff;
  padding: 12px 18px;
  border-radius: 999px;
  text-decoration: none;
  cursor: pointer;
}
main { padding: 32px 0 60px; }
.card {
  background: rgba(255, 250, 242, 0.88);
  border: 1px solid var(--line);
  border-radius: 20px;
  padding: 22px;
  margin-bottom: 20px;
}
.chat-box {
  min-height: 180px;
  max-height: 320px;
  overflow: auto;
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 14px;
  background: #fff;
  margin-bottom: 14px;
}
.chat-row { margin-bottom: 10px; padding: 10px 12px; border-radius: 14px; max-width: 85%; }
.chat-row.user { margin-left: auto; background: #f1d9bc; }
.chat-row.assistant { background: #f5efe6; }
.chat-form { display: flex; gap: 10px; }
.chat-form input {
  flex: 1;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 12px 14px;
  font: inherit;
}
@media (max-width: 640px) {
  .chat-form { flex-direction: column; }
  .chat-form input, .chat-form button { width: 100%; }
}