:root {
  --bg: #0f1419;
  --card: #1a222c;
  --text: #e7ecf1;
  --muted: #8b9aab;
  --accent: #6ee7b7;
  --accent2: #38bdf8;
  --danger: #f87171;
  --oriol: #38bdf8;
  --daya: #6ee7b7;
  --sys: #a78bfa;
}
* { box-sizing: border-box; }
body {
  margin: 0; font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
  background: radial-gradient(1200px 600px at 10% -10%, #163027 0%, var(--bg) 45%);
  color: var(--text); min-height: 100vh;
}
#app { max-width: 720px; margin: 0 auto; padding: 1.25rem; }
header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 1rem; }
h1 { margin: 0; font-size: 1.6rem; letter-spacing: 0.02em; }
.tag { margin: 0.15rem 0 0; color: var(--muted); font-size: 0.85rem; }
.card { background: var(--card); border: 1px solid #273241; border-radius: 14px; padding: 1.25rem; }
input, textarea, button {
  font: inherit; border-radius: 10px; border: 1px solid #314155; background: #0f1720; color: var(--text);
}
input, textarea { width: 100%; padding: 0.75rem 0.9rem; margin: 0.5rem 0 0.75rem; }
button {
  background: linear-gradient(135deg, #0d9488, #0284c7); border: none; color: white;
  padding: 0.65rem 1.1rem; cursor: pointer; font-weight: 600;
}
button:hover { filter: brightness(1.08); }
.linkish { background: transparent; border: none; color: var(--muted); padding: 0.5rem 0; margin-top: 0.75rem; }
.error { color: var(--danger); }
.pill { padding: 0.35rem 0.7rem; border-radius: 999px; font-size: 0.75rem; border: 1px solid #314155; }
.pill.ok { color: var(--accent); border-color: #14532d; background: #052e1a; }
.pill.warn { color: #fbbf24; }
.pill.muted { color: var(--muted); }
.messages {
  background: var(--card); border: 1px solid #273241; border-radius: 14px;
  min-height: 50vh; max-height: 62vh; overflow-y: auto; padding: 1rem; display: flex; flex-direction: column; gap: 0.65rem;
}
.bubble { max-width: 88%; padding: 0.65rem 0.85rem; border-radius: 12px; line-height: 1.4; white-space: pre-wrap; word-break: break-word; }
.bubble.oriol { align-self: flex-end; background: #0b2740; border: 1px solid #1e4b72; }
.bubble.daya { align-self: flex-start; background: #0e2a22; border: 1px solid #1b5c48; }
.bubble.system { align-self: center; background: #1f1833; border: 1px solid #4c3d78; color: #d8ccff; font-size: 0.85rem; }
.meta { display: block; margin-top: 0.35rem; color: var(--muted); font-size: 0.7rem; }
.composer { margin-top: 0.75rem; }
.composer-row { display: flex; justify-content: space-between; align-items: center; gap: 1rem; }
.chk { color: var(--muted); font-size: 0.85rem; display: flex; align-items: center; gap: 0.4rem; }
.chk input { width: auto; margin: 0; }

.tabs { display: flex; gap: 0.5rem; margin: 0.75rem 0; }
.tab { background: #0f1720; border: 1px solid #314155; color: var(--muted); padding: 0.45rem 0.85rem; }
.tab.active { color: var(--text); border-color: #0d9488; background: #0e2a22; }
.muted-line { color: var(--muted); font-size: 0.85rem; }