:root {
  --ink: #111111;
  --paper: #ffffff;
  --muted: #5f5e5a;
  --line: #d9d7d0;
  --soft: #f4f3ef;
  --accent: #0b6e8a;
  --accent-ink: #ffffff;
  --warn-bg: #fdf3dc;
  --warn-ink: #6b4500;
  --radius: 10px;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
  color: var(--ink);
  background: var(--soft);
}
@media (prefers-color-scheme: dark) {
  :root { --ink: #f1f0ec; --paper: #1d1d1b; --muted: #b4b2a9; --line: #3a3a37; --soft: #121211; --accent: #4fb3cf; --accent-ink: #0b0b0b; --warn-bg: #3a2c0c; --warn-ink: #f6d58f; }
}
* { box-sizing: border-box; }
body { margin: 0; min-height: 100vh; background: var(--soft); line-height: 1.6; }
a { color: var(--accent); }
.topbar { background: #000; color: #fff; display: flex; align-items: center; justify-content: space-between; padding: 12px 16px; }
.brand { display: flex; align-items: center; gap: 10px; color: #fff; text-decoration: none; }
.brand-mark { width: 34px; height: 34px; background: #fff; color: #000; font-weight: 800; display: grid; place-items: center; font-size: 15px; letter-spacing: -1px; }
.brand-word { font-weight: 800; font-size: 13px; line-height: 1.05; letter-spacing: .5px; text-transform: uppercase; }
.lang { display: flex; border: 1px solid #fff; border-radius: 999px; overflow: hidden; }
.lang button { background: transparent; color: #fff; border: 0; padding: 4px 12px; font-size: 13px; cursor: pointer; }
.lang button[aria-pressed="true"] { background: #fff; color: #000; }
.wrap { max-width: 440px; margin: 0 auto; padding: 24px 16px 48px; }
.wrap.wide { max-width: 760px; }
.card { background: var(--paper); border: 1px solid var(--line); border-radius: 16px; padding: 24px 20px; }
.avatar { width: 64px; height: 64px; border-radius: 50%; background: var(--accent); color: var(--accent-ink); display: grid; place-items: center; font-size: 28px; font-weight: 700; margin: 0 auto 12px; }
h1 { font-size: 24px; margin: 0 0 4px; text-align: center; }
.sub { color: var(--muted); text-align: center; margin: 0 0 20px; font-size: 15px; }
label { display: block; font-size: 14px; color: var(--muted); margin-bottom: 6px; }
input[type=text], input[type=tel], input[type=email] { width: 100%; font-size: 17px; padding: 12px; border: 1px solid var(--line); border-radius: var(--radius); background: var(--paper); color: var(--ink); }
.btn { display: block; width: 100%; padding: 13px; border: 0; border-radius: var(--radius); background: var(--accent); color: var(--accent-ink); font-size: 16px; font-weight: 600; cursor: pointer; margin-top: 14px; }
.btn.secondary { background: transparent; color: var(--accent); border: 1px solid var(--line); }
.links { text-align: center; margin-top: 14px; font-size: 14px; }
.links a { display: block; margin: 6px 0; }
.consent { font-size: 12.5px; color: var(--muted); margin-top: 18px; line-height: 1.5; }
.footer { text-align: center; font-size: 12.5px; color: var(--muted); padding: 16px; }
.doc h1 { text-align: left; }
.doc h2 { font-size: 18px; margin-top: 28px; }
.doc p, .doc li { font-size: 15.5px; }
.notice { background: var(--warn-bg); color: var(--warn-ink); border-radius: var(--radius); padding: 10px 12px; font-size: 14px; }
[hidden] { display: none !important; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.top-actions { display: flex; align-items: center; gap: 10px; }
.link-btn { background: none; border: 0; color: #fff; font-size: 13px; text-decoration: underline; cursor: pointer; padding: 4px; }
.btn:disabled, .send:disabled { opacity: .55; cursor: default; }
.chat-wrap { max-width: 760px; margin: 0 auto; padding: 12px 12px 0; display: flex; flex-direction: column; min-height: calc(100vh - 58px); min-height: calc(100dvh - 58px); }
.thread { flex: 1; display: flex; flex-direction: column; gap: 10px; padding: 8px 2px 12px; }
.bubble { max-width: 86%; padding: 10px 13px; border-radius: 16px; font-size: 15.5px; line-height: 1.5; white-space: pre-wrap; overflow-wrap: anywhere; }
.bubble.clara { background: var(--paper); border: 1px solid var(--line); align-self: flex-start; border-bottom-left-radius: 4px; }
.bubble.me { background: var(--accent); color: var(--accent-ink); align-self: flex-end; border-bottom-right-radius: 4px; }
.bubble.typing { color: var(--muted); font-style: italic; }
.bubble.error { border-color: #c9a227; background: var(--warn-bg); color: var(--warn-ink); }
.fb { margin-top: 6px; display: flex; gap: 4px; }
.fb button { background: none; border: 1px solid var(--line); border-radius: 999px; padding: 1px 8px; font-size: 13px; cursor: pointer; opacity: .7; }
.fb button.on { opacity: 1; border-color: var(--accent); }
.chips { display: flex; gap: 8px; overflow-x: auto; padding: 4px 2px 8px; }
.chips button { flex: 0 0 auto; background: var(--paper); color: var(--ink); border: 1px solid var(--line); border-radius: 999px; padding: 7px 12px; font-size: 14px; cursor: pointer; }
.ask { position: sticky; bottom: 0; display: flex; gap: 8px; align-items: flex-end; background: var(--soft); padding: 8px 0 10px; }
.ask textarea { flex: 1; resize: none; font: inherit; font-size: 16px; padding: 11px 14px; border: 1px solid var(--line); border-radius: 22px; background: var(--paper); color: var(--ink); max-height: 140px; }
.send { width: 46px; height: 46px; border-radius: 50%; border: 0; background: var(--accent); color: var(--accent-ink); font-size: 18px; cursor: pointer; }
.anns { display: flex; flex-direction: column; gap: 8px; margin-bottom: 6px; }
.ann { background: var(--warn-bg); color: var(--warn-ink); border-radius: var(--radius); padding: 9px 12px; }
.ann summary { cursor: pointer; font-weight: 600; font-size: 14.5px; }
.ann-body { white-space: pre-wrap; font-size: 14.5px; margin-top: 6px; }
.footer.small { font-size: 12.5px; padding: 4px 0 14px; }