:root {
  color-scheme: dark;
  --ink: #f5efe5;
  --muted: #b9ad9b;
  --panel: rgba(28, 27, 25, .88);
  --line: rgba(236, 206, 148, .19);
  --gold: #e4b35e;
  --gold-deep: #9a6a24;
  --night: #0c0d0d;
  font-family: Inter, ui-sans-serif, system-ui, sans-serif;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  min-height: 100vh;
  color: var(--ink);
  background:
    radial-gradient(circle at 10% 10%, rgba(128, 85, 24, .27), transparent 30rem),
    radial-gradient(circle at 90% 80%, rgba(67, 91, 81, .22), transparent 32rem),
    var(--night);
}
button, input, textarea { font: inherit; }
button {
  border: 1px solid var(--gold-deep);
  border-radius: .75rem;
  padding: .75rem 1rem;
  color: #17120b;
  background: linear-gradient(145deg, #f0c978, var(--gold));
  cursor: pointer;
}
button:disabled { cursor: wait; opacity: .55; }
.ghost { color: var(--ink); background: transparent; border-color: var(--line); }
.shell { width: min(980px, calc(100% - 2rem)); margin: 0 auto; padding: 2rem 0; }
header { display: flex; align-items: center; justify-content: space-between; gap: 1rem; margin-bottom: 1.5rem; }
h1, h2, p { margin-top: 0; }
h1 { margin-bottom: 0; font-family: Georgia, serif; font-size: clamp(2.2rem, 7vw, 4.8rem); font-weight: 500; letter-spacing: -.04em; }
.eyebrow { color: var(--gold); font-size: .72rem; letter-spacing: .22em; margin-bottom: .45rem; }
.header-actions { display: flex; align-items: center; gap: .75rem; }
.status { color: var(--muted); }
.panel, .chat { border: 1px solid var(--line); border-radius: 1.25rem; background: var(--panel); box-shadow: 0 25px 90px rgba(0,0,0,.35); }
.login-panel { max-width: 31rem; padding: 2rem; }
label { display: block; color: var(--muted); margin-bottom: .5rem; }
input, textarea { width: 100%; border: 1px solid var(--line); border-radius: .75rem; padding: .9rem; color: var(--ink); background: rgba(0,0,0,.28); outline: none; }
input:focus, textarea:focus { border-color: var(--gold); box-shadow: 0 0 0 3px rgba(228,179,94,.13); }
.login-panel button { width: 100%; margin-top: 1rem; }
.error { min-height: 1.3rem; color: #ff9d8e; margin: 1rem 0 0; }
.chat { overflow: hidden; }
.messages { min-height: 50vh; max-height: 65vh; overflow-y: auto; padding: 1.25rem; }
.message { max-width: 82%; border: 1px solid var(--line); border-radius: 1rem; padding: .9rem 1rem; margin: 0 0 1rem; white-space: pre-wrap; line-height: 1.55; }
.message.user { margin-left: auto; background: rgba(228,179,94,.10); }
.message.assistant { background: rgba(255,255,255,.035); }
.message small { display: block; margin-top: .7rem; color: var(--muted); }
.composer { border-top: 1px solid var(--line); padding: 1rem; }
.composer textarea { resize: vertical; }
.composer-actions { display: flex; justify-content: flex-end; gap: .65rem; margin-top: .7rem; }
.note { margin: 0; padding: 0 1rem 1rem; color: var(--muted); font-size: .83rem; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }
@media (max-width: 640px) { .shell { padding-top: 1rem; } header { align-items: flex-end; } .message { max-width: 94%; } .composer-actions { flex-wrap: wrap; } }