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#1d9e7540;flex-shrink:0}.btn-send:hover:not(:disabled){background:var(--teal-dark);box-shadow:0 4px 14px #1d9e7559;transform:translateY(-1px)}.btn-send:active:not(:disabled){transform:translateY(0)}.btn-send:disabled{opacity:.5;cursor:not-allowed}:focus-visible{outline:2px solid var(--teal);outline-offset:2px}@media(max-width:640px){.chat-zone-header{padding:12px 16px 10px}.chat-messages{padding:16px;max-height:320px}.chat-input-row{padding:10px 16px 14px}.chat-bubble{max-width:90%}}
