body { font-family: -apple-system, "Segoe UI", Arial, sans-serif; background: #f3f2ef; min-height: 100vh; padding: 40px 20px; }
.chat { max-width: 520px; margin: 0 auto; background: #fff; border-radius: 8px; overflow: hidden; box-shadow: 0 2px 8px rgba(0,0,0,0.08); }
header { background: #0a66c2; color: #fff; padding: 12px 16px; display: flex; align-items: center; gap: 12px; }
.logo { width: 30px; height: 30px; background: #fff; color: #0a66c2; font-weight: bold; border-radius: 4px; display: flex; align-items: center; justify-content: center; }
.contact { display: flex; gap: 12px; padding: 16px; border-bottom: 1px solid #eee; }
.ava { width: 48px; height: 48px; background: #e74c3c; color: #fff; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-weight: bold; font-size: 20px; flex-shrink: 0; }
.dim { color: #666; font-size: 13px; }
.tiny { color: #888; font-size: 11px; }
.msg-in { background: #f3f2ef; padding: 12px 14px; margin: 10px 16px; border-radius: 12px; font-size: 14px; line-height: 1.5; max-width: 90%; animation: fade 0.4s ease; }
@keyframes fade { from { opacity: 0; transform: translateY(8px); } }
.actions-row { padding: 16px; display: flex; flex-direction: column; gap: 8px; }
.btn { background: #0a66c2; color: #fff; border: none; padding: 12px; font-size: 14px; font-weight: 600; border-radius: 20px; cursor: pointer; }
.btn-2 { background: #fff; color: #0a66c2; border: 1px solid #0a66c2; padding: 12px; font-size: 14px; font-weight: 600; border-radius: 20px; cursor: pointer; }