.chat-interface{display:flex;flex-direction:column;height:100%;background-color:var(--bg-white);border-radius:8px;box-shadow:0 2px 8px #0000001a;overflow:hidden}.messages-container{flex:1;overflow-y:auto;padding:1.5rem;display:flex;flex-direction:column;gap:1rem}.welcome-message{text-align:center;padding:2rem;color:var(--text-light)}.welcome-message h2{color:var(--text-dark);margin-bottom:1rem}.welcome-message ul{text-align:left;max-width:500px;margin:1rem auto;list-style-position:inside}.welcome-message li{margin:.5rem 0;padding:.5rem;background-color:var(--bg-light);border-radius:6px}.message{display:flex;max-width:80%}.message-user{align-self:flex-end}.message-bot{align-self:flex-start}.message-content{display:flex;flex-direction:column;gap:.25rem}.message-label{font-size:.75rem;font-weight:600;color:var(--text-light);text-transform:uppercase}.message-text{padding:.75rem 1rem;border-radius:18px;line-height:1.4;white-space:pre-wrap}.message-user .message-text{background-color:var(--primary-color);color:#fff}.message-bot .message-text{background-color:var(--bg-light);color:var(--text-dark)}.typing-indicator{display:flex;gap:4px;padding:1rem}.typing-indicator span{width:8px;height:8px;border-radius:50%;background-color:var(--text-light);animation:typing 1.4s infinite}.typing-indicator span:nth-child(2){animation-delay:.2s}.typing-indicator span:nth-child(3){animation-delay:.4s}@keyframes typing{0%,60%,to{opacity:.3}30%{opacity:1}}.input-form{display:flex;gap:.5rem;padding:1rem;border-top:1px solid var(--border-color);background-color:var(--bg-white)}.message-input{flex:1;padding:.75rem 1rem;border:1px solid var(--border-color);border-radius:24px;font-size:.95rem;outline:none}.message-input:focus{border-color:var(--primary-color)}.message-input:disabled{background-color:var(--bg-light);cursor:not-allowed}.input-form button{padding:.75rem 1.5rem;background-color:var(--primary-color);color:#fff;border-radius:24px;font-weight:600;transition:background-color .2s}.input-form button:hover:not(:disabled){background-color:#166fe5}.input-form button:disabled{background-color:var(--border-color)}.attach-button{padding:.75rem;background-color:transparent;color:var(--text-light);border:none;font-size:1.5rem;cursor:pointer;transition:color .2s;min-width:auto}.attach-button:hover:not(:disabled){background-color:transparent;color:var(--primary-color)}.attach-button:disabled{background-color:transparent;opacity:.5;cursor:not-allowed}.file-preview-container{padding:1rem;border-top:1px solid var(--border-color);background-color:var(--bg-light);max-height:200px;overflow-y:auto}.file-preview-label{font-size:.85rem;font-weight:600;color:var(--text-light);margin-bottom:.5rem}.file-preview-list{display:flex;gap:.75rem;flex-wrap:wrap}.file-preview-item{display:flex;align-items:center;gap:.5rem;padding:.5rem;background-color:var(--bg-white);border:1px solid var(--border-color);border-radius:8px;position:relative}.file-preview-image{width:60px;height:60px;object-fit:cover;border-radius:4px}.file-preview-info{display:flex;flex-direction:column;gap:.25rem;min-width:100px}.file-preview-name{font-size:.85rem;color:var(--text-dark);font-weight:500;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;max-width:150px}.file-preview-size{font-size:.75rem;color:var(--text-light)}.file-preview-remove{position:absolute;top:.25rem;right:.25rem;background-color:#f00c;color:#fff;border:none;border-radius:50%;width:20px;height:20px;display:flex;align-items:center;justify-content:center;font-size:.75rem;cursor:pointer;padding:0;line-height:1}.file-preview-remove:hover{background-color:red}.campaign-preview{background-color:var(--bg-white);border-radius:8px;box-shadow:0 2px 8px #0000001a;padding:1.5rem;height:100%;overflow-y:auto}.campaign-preview h2{margin-bottom:1.5rem;color:var(--text-dark);font-size:1.5rem}.preview-section{margin-bottom:1.5rem;padding-bottom:1.5rem;border-bottom:1px solid var(--border-color)}.preview-section:last-of-type{border-bottom:none}.preview-section h3{font-size:1.1rem;margin-bottom:1rem;color:var(--text-dark)}.detail-row{display:flex;justify-content:space-between;padding:.5rem 0}.detail-row .label{font-weight:600;color:var(--text-light)}.detail-row .value{color:var(--text-dark);text-align:right}.creative-preview{display:flex;flex-direction:column;gap:1rem}.creative-image{width:100%;border-radius:8px;overflow:hidden}.creative-image img{width:100%;height:auto;display:block}.creative-text{display:flex;flex-direction:column;gap:.75rem}.preview-actions{display:flex;gap:1rem;margin-top:2rem}.btn{flex:1;padding:.875rem 1.5rem;border-radius:8px;font-weight:600;font-size:1rem;transition:all .2s}.btn-approve{background-color:var(--secondary-color);color:#fff}.btn-approve:hover:not(:disabled){background-color:#36a420}.btn-reject{background-color:var(--danger-color);color:#fff}.btn-reject:hover:not(:disabled){background-color:#d13753}.campaign-preview.edit-mode{border:2px solid var(--primary-color)}.campaign-preview.edit-mode h2{color:var(--primary-color)}.edit-mode-banner{background-color:#fff3cd;border:1px solid #ffc107;color:#856404;padding:.75rem 1rem;border-radius:4px;margin-bottom:1.5rem;font-size:.9rem;text-align:center}.auth-container{display:flex;align-items:center;gap:1rem}.user-info{color:var(--text-light);font-size:.9rem}.btn-login{padding:.625rem 1.25rem;background-color:var(--primary-color);color:#fff;border-radius:6px;font-weight:600;transition:background-color .2s}.btn-login:hover{background-color:#166fe5}.btn-logout{padding:.5rem 1rem;background-color:var(--bg-light);color:var(--text-dark);border-radius:6px;font-weight:500;transition:background-color .2s}.btn-logout:hover{background-color:var(--border-color)}.app{min-height:100vh;display:flex;flex-direction:column}.app-header{background-color:var(--bg-white);border-bottom:1px solid var(--border-color);padding:1rem 2rem;display:flex;justify-content:space-between;align-items:center;box-shadow:0 2px 4px #0000001a}.app-header h1{font-size:1.5rem;color:var(--primary-color)}.app-main{flex:1;padding:2rem;max-width:1400px;width:100%;margin:0 auto}.account-selector{background-color:var(--bg-white);padding:1rem;border-radius:8px;margin-bottom:1rem;display:flex;gap:1rem;box-shadow:0 1px 3px #0000001a}.account-selector label{display:flex;flex-direction:column;gap:.5rem;flex:1;font-weight:500;color:var(--text-dark)}.account-selector select,.account-selector input{padding:.5rem;border:1px solid var(--border-color);border-radius:6px;font-size:.95rem}.content-container{display:grid;grid-template-columns:1fr 1fr;gap:1rem;height:calc(100vh - 200px)}@media (max-width: 1024px){.content-container{grid-template-columns:1fr;height:auto}}:root{--primary-color: #1877f2;--secondary-color: #42b72a;--danger-color: #e4405f;--text-dark: #1c1e21;--text-light: #65676b;--border-color: #dddfe2;--bg-light: #f0f2f5;--bg-white: #ffffff}*{box-sizing:border-box;margin:0;padding:0}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;background-color:var(--bg-light);color:var(--text-dark)}button{cursor:pointer;border:none;outline:none;font-family:inherit}button:disabled{cursor:not-allowed;opacity:.6}input,select{font-family:inherit;font-size:inherit}h1,h2,h3,h4,h5,h6{font-weight:600}