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.2s;max-height:100px}.chat-input:focus{border-color:#218746}.chat-input:disabled{background:#f5f5f5;cursor:not-allowed}.send-button{background:#105b32;color:white;border:none;border-radius:50%;width:40px;height:40px;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:background-color .2s;font-weight:600;font-size:.9rem}.send-button:hover:not(:disabled){background:#0a4025}.send-button:disabled{background:#c9ddcf;color:#3d5c47;cursor:not-allowed}.chat-footer{padding:.5rem 1rem;background:#f8f9fa;border-top:1px solid #e9ecef;text-align:center}.chat-footer small{color:#4d5f54;font-size:.75rem}@media (max-width:768px){.chat-modal{width:95%;height:90vh;margin:5vh auto}.message{max-width:90%}.chat-input-container{padding:.75rem}}.dark-mode .chat-modal{background:var(--surface);box-shadow:0 10px 25px rgba(0,0,0,.5)}.dark-mode .bot-message .message-text{background:rgba(255,255,255,.08);color:var(--text-primary)}.dark-mode .message-time{color:var(--text-secondary)}.dark-mode .chat-input-container{background:var(--background);border-top-color:rgba(255,255,255,.08)}.dark-mode .chat-input{background-color:var(--surface);color:var(--text-primary);border-color:var(--input-border)}.dark-mode .chat-input:focus{border-color:#218746}.dark-mode .chat-footer,.dark-mode .chat-input:disabled{background:var(--background)}.dark-mode .chat-footer{border-top-color:rgba(255,255,255,.06)}.dark-mode .chat-footer small,.dark-mode .sources-label{color:var(--text-secondary)}