*{margin:0;padding:0;box-sizing:border-box}:root{--line-green: #06C755;--bubble-green: #8DE041;--bg: #F5F5F5;--white: #FFFFFF;--text: #333;--border: #D1D1D1;--error: #FF4D4F;--dot: #B0B0B0}.modal-overlay{position:fixed;inset:0;display:flex;justify-content:center;align-items:center;background:#00000080}.auth-card{background:var(--white);padding:32px 24px;border-radius:12px;width:90%;max-width:380px;display:flex;flex-direction:column;gap:14px;box-shadow:0 4px 20px #00000026}.auth-card h2{text-align:center;font-size:1.3rem;color:var(--text)}.auth-card input{padding:10px 14px;border:1px solid var(--border);border-radius:8px;font-size:1.1rem;outline:none}.auth-card button{padding:10px;border:none;border-radius:8px;background:var(--line-green);color:var(--white);font-size:1.1rem;font-weight:600;cursor:pointer}.auth-card button:disabled{background:#ccc;cursor:not-allowed}.error{color:var(--error);text-align:center;font-size:.9rem}.chat-container{display:flex;flex-direction:column;height:100dvh;max-width:600px;margin:0 auto;background:var(--bg);border-left:1px solid var(--border);border-right:1px solid var(--border)}.chat-header{background:var(--line-green);color:var(--white);padding:12px 16px;font-weight:700;text-align:center;flex-shrink:0;position:relative;display:flex;align-items:center;justify-content:center}.settings-btn{position:absolute;right:10px;top:50%;transform:translateY(-50%);width:36px;height:36px;border:none;border-radius:50%;background:transparent;cursor:pointer;display:flex;justify-content:center;align-items:center}.settings-btn:hover{background:#fff3}.message-area{flex:1;overflow-y:auto;padding:16px 12px;display:flex;flex-direction:column}.bubble{max-width:75%;padding:10px 14px;border-radius:16px;margin-bottom:10px;white-space:pre-wrap;word-break:break-word;line-height:1.45;font-size:1.1rem}.bubble.user{background:var(--bubble-green);color:var(--text);align-self:flex-end}.bubble.assistant{background:var(--white);color:var(--text);align-self:flex-start;box-shadow:0 1px 3px #00000014}.bubble img{max-width:220px;max-height:220px;border-radius:12px;display:block;margin:4px 0}.typing-dots{display:flex;gap:4px;padding:2px 0}.typing-dots span{width:8px;height:8px;background:var(--dot);border-radius:50%;animation:bounce 1.3s infinite ease-in-out}.typing-dots span:nth-child(1){animation-delay:-.32s}.typing-dots span:nth-child(2){animation-delay:-.16s}.typing-dots span:nth-child(3){animation-delay:0s}@keyframes bounce{0%,80%,to{transform:scale(0)}40%{transform:scale(1)}}.input-area{display:flex;align-items:flex-end;padding:10px;background:var(--white);border-top:1px solid var(--border);flex-shrink:0;flex-wrap:wrap}.image-preview{display:flex;gap:8px;padding:6px 4px;width:100%;overflow-x:auto}.image-preview-item{position:relative;flex-shrink:0}.image-preview img{width:60px;height:60px;object-fit:cover;border-radius:8px;border:1px solid var(--border)}.image-preview .remove-btn{position:absolute;top:-6px;right:-6px;width:20px;height:20px;border:none;border-radius:50%;background:#0000008c;color:var(--white);font-size:14px;line-height:1;cursor:pointer;display:flex;align-items:center;justify-content:center;padding:0}.attach-btn{width:38px;height:38px;border:none;border-radius:50%;background:transparent;cursor:pointer;display:flex;justify-content:center;align-items:center;flex-shrink:0;margin-right:4px}.attach-btn:hover{background:var(--bg)}.input-area textarea{flex:1;border:1px solid var(--border);border-radius:18px;padding:8px 14px;font-size:1.1rem;line-height:1.4;resize:none;overflow-y:hidden;max-height:120px;margin-right:10px;outline:none;font-family:inherit}.send-btn{width:38px;height:38px;border:none;border-radius:50%;background:var(--line-green);cursor:pointer;display:flex;justify-content:center;align-items:center;flex-shrink:0;transition:background .2s}.send-btn:hover{background:#05a54a}.send-btn:disabled{background:#ccc;cursor:not-allowed}.settings-panel{background:var(--white);border-radius:12px;width:90%;max-width:440px;max-height:85vh;display:flex;flex-direction:column;box-shadow:0 4px 20px #00000026;overflow:hidden}.settings-header{display:flex;align-items:center;justify-content:space-between;padding:16px 20px;border-bottom:1px solid var(--border);flex-shrink:0}.settings-header h2{font-size:1.3rem;color:var(--text)}.settings-close-btn{width:32px;height:32px;border:none;border-radius:50%;background:transparent;font-size:20px;color:#999;cursor:pointer;display:flex;align-items:center;justify-content:center}.settings-close-btn:hover{background:var(--bg);color:var(--text)}.settings-body{padding:16px 20px;display:flex;flex-direction:column;gap:12px;overflow-y:auto}.settings-field{display:flex;flex-direction:column;gap:4px}.settings-field label{font-size:.9rem;font-weight:600;color:#555}.settings-field label.required:after{content:" *";color:var(--error)}.settings-field input,.settings-field textarea,.settings-field select{width:100%;padding:8px 12px;border:1px solid var(--border);border-radius:8px;font-size:1.1rem;outline:none;font-family:inherit;background:var(--white)}.settings-field input:focus,.settings-field textarea:focus,.settings-field select:focus{border-color:var(--line-green)}.settings-field textarea{resize:vertical;min-height:60px}.settings-save-btn{flex:1;padding:10px;border:none;border-radius:8px;background:var(--line-green);color:var(--white);font-size:1.1rem;font-weight:600;cursor:pointer;transition:background .2s}.settings-save-btn:hover{background:#05a54a}.settings-save-btn:disabled{background:#ccc;cursor:not-allowed}.settings-field-inline{display:flex;gap:12px}.settings-field-inline .settings-field{flex:1;min-width:0}.settings-actions{display:flex;gap:10px;margin-top:4px}.settings-cancel-btn{flex:1;padding:10px;border:1px solid var(--border);border-radius:8px;background:var(--white);color:var(--text);font-size:1.1rem;font-weight:600;cursor:pointer;transition:background .2s}.settings-cancel-btn:hover{background:var(--bg)}.success{color:var(--line-green);text-align:center;font-size:.9rem}@media(max-width:480px){.bubble{max-width:82%}.chat-header{padding:10px 12px}.input-area{padding:8px}}