:root {
  --bg: #f6f7f9; --card: #ffffff; --text: #1d2330; --muted: #6b7280;
  --line: #e3e6eb; --accent: #2f6fed; --code: #0f172a; --code-text: #e5e7eb;
  --me: #e8f0fe; --claude: #ffffff; --gafas: #eaf7ef; --sistema: #fff6e5;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #12151b; --card: #1a1f27; --text: #e6e8ec; --muted: #9aa3b2;
    --line: #2a313c; --accent: #6b9bff; --code: #0b0f17; --code-text: #e5e7eb;
    --me: #1c2a45; --claude: #1a1f27; --gafas: #17302a; --sistema: #33290f;
  }
}
* { box-sizing: border-box; }
html, body { height: 100%; margin: 0; }
body { background: var(--bg); color: var(--text); font: 15px/1.5 system-ui, -apple-system, "Segoe UI", sans-serif; }
button { font: inherit; cursor: pointer; border: 0; border-radius: 8px; background: var(--accent); color: #fff; padding: 8px 14px; }
button.ghost { background: transparent; color: var(--muted); border: 1px solid var(--line); padding: 6px 10px; }
input, textarea { font: inherit; color: var(--text); background: var(--card); border: 1px solid var(--line); border-radius: 8px; padding: 10px; width: 100%; }

/* Login */
body.login { display: grid; place-items: center; padding: 16px; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 12px; padding: 24px; width: 100%; max-width: 340px; display: grid; gap: 10px; }
.card h1 { margin: 0 0 8px; font-size: 22px; }
.error { color: #d14343; min-height: 1.5em; margin: 0; }

/* Panel */
body.panel { display: flex; flex-direction: column; max-width: 900px; margin: 0 auto; }
header { display: flex; align-items: center; gap: 8px; padding: 10px 16px; border-bottom: 1px solid var(--line); }
header h1 { font-size: 18px; margin: 0; }
.spacer { flex: 1; }
.conn { font-size: 12px; }
.conn.on { color: #22a35a; }
.conn.off { color: #d14343; }
#feed { flex: 1; overflow-y: auto; padding: 16px; display: flex; flex-direction: column; gap: 10px; }
.msg { border: 1px solid var(--line); border-radius: 10px; padding: 10px 12px; background: var(--claude); max-width: 100%; }
.msg.from-yo { background: var(--me); align-self: flex-end; max-width: 85%; }
.msg.from-gafas { background: var(--gafas); }
.msg.from-sistema { background: var(--sistema); font-size: 13px; }
.meta { display: flex; align-items: center; gap: 8px; font-size: 12px; color: var(--muted); }
.meta strong { color: var(--text); }
.meta .copy { margin-left: auto; }
.msg p { margin: 6px 0; white-space: pre-wrap; overflow-wrap: anywhere; }
.msg p:empty { display: none; }
.code { position: relative; margin: 8px 0; }
.code pre { margin: 0; background: var(--code); color: var(--code-text); padding: 12px; padding-right: 80px; border-radius: 8px; overflow-x: auto; font: 13px/1.45 ui-monospace, Consolas, monospace; }
.code .copy { position: absolute; top: 6px; right: 6px; }
.copy { font-size: 12px; padding: 4px 10px; }
.typing { padding: 0 16px 6px; color: var(--muted); font-size: 13px; }
#composer { border-top: 1px solid var(--line); padding: 10px 16px 16px; display: grid; gap: 8px; }
#composer textarea { resize: vertical; min-height: 48px; }
.row { display: flex; align-items: center; gap: 8px; }
.toggle { flex: 1; color: var(--muted); font-size: 14px; display: flex; align-items: center; gap: 6px; }
.toggle input { width: auto; }