:root{--bg-primary: #17212b;--bg-secondary: #0e1621;--bg-tertiary: #182533;--bg-message: #182533;--bg-message-own: #2b5278;--bg-hover: #202b36;--bg-selected: #2b5278;--border-color: #1f2936;--text-primary: #f5f5f5;--text-secondary: #8b9ba5;--text-muted: #6c7883;--accent: #5288c1;--accent-hover: #6ba0d9;--link: #6ab2f2;--danger: #e53935;--danger-hover: #c62828;--success: #4caf50}.app{min-height:100vh;display:flex;flex-direction:column;background:var(--bg-primary)}.header{padding:1rem 2rem;background:var(--bg-secondary);border-bottom:1px solid var(--border-color);display:flex;justify-content:space-between;align-items:center}.header h1{font-size:1.5rem;color:var(--text-primary)}.main{flex:1;padding:2rem;max-width:1200px;margin:0 auto;width:100%}.btn{padding:.75rem 1.5rem;border:none;border-radius:8px;font-size:1rem;cursor:pointer;transition:all .2s}.btn-primary{background:var(--accent);color:#fff}.btn-primary:hover{background:var(--accent-hover)}.btn-primary:disabled{background:var(--bg-tertiary);color:var(--text-muted);cursor:not-allowed}.btn-outline{background:transparent;border:1px solid var(--border-color);color:var(--text-primary)}.btn-outline:hover{border-color:var(--accent);background:var(--bg-hover)}.btn-outline:disabled{color:var(--text-muted);cursor:not-allowed;opacity:.5;border-color:var(--border-color)}.btn-danger{background:var(--danger);color:#fff}.btn-danger:hover{background:var(--danger-hover)}.btn-sm{padding:.4rem .75rem;font-size:.875rem}.card{background:var(--bg-secondary);border:1px solid var(--border-color);border-radius:12px;padding:1.5rem;margin-bottom:1rem}.card-title{font-size:1.25rem;margin-bottom:1rem;color:var(--text-primary)}.input{width:100%;padding:.75rem 1rem;background:var(--bg-tertiary);border:1px solid var(--border-color);border-radius:8px;color:var(--text-primary);font-size:1rem}.input:focus{outline:none;border-color:var(--accent)}.auth-container{max-width:400px;margin:2rem auto;text-align:center}.qr-code{background:#fff;padding:1rem;border-radius:12px;display:inline-block;margin:1.5rem 0}.qr-code img{display:block;width:200px;height:200px}.status-text{color:var(--text-secondary);margin:1rem 0}.chat-list{display:flex;flex-direction:column;gap:.5rem}.chat-item{display:flex;align-items:center;gap:1rem;padding:1rem;background:var(--bg-tertiary);border:1px solid var(--border-color);border-radius:8px;cursor:pointer;transition:all .2s}.chat-item:hover{border-color:var(--accent);background:var(--bg-hover)}.chat-item.selected{border-color:var(--accent);background:var(--bg-selected)}.chat-avatar{flex-shrink:0}.avatar-img{width:48px;height:48px;border-radius:50%;object-fit:cover}.avatar-placeholder{width:48px;height:48px;border-radius:50%;background:linear-gradient(135deg,#5288c1,#8e44ad);display:flex;align-items:center;justify-content:center;font-size:1.25rem;font-weight:600;color:#fff}.chat-info{flex:1;min-width:0}.chat-title{font-weight:500;color:var(--text-primary);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.chat-meta{font-size:.875rem;color:var(--text-secondary);margin-top:.25rem}.pagination{display:flex;align-items:center;justify-content:center;gap:1rem;margin-top:1.5rem;padding-top:1rem;border-top:1px solid var(--border-color)}.page-info{color:var(--text-secondary);font-size:.875rem}.progress-container{margin:2rem 0}.progress-bar{height:8px;background:var(--bg-tertiary);border-radius:4px;overflow:hidden;margin-bottom:.5rem}.progress-fill{height:100%;background:var(--accent);transition:width .3s}.progress-text{display:flex;justify-content:space-between;color:var(--text-secondary);font-size:.875rem}.export-list{display:flex;flex-direction:column;gap:.75rem}.export-item{display:flex;align-items:center;gap:1rem;padding:1rem;background:var(--bg-tertiary);border:1px solid var(--border-color);border-radius:8px;cursor:pointer;transition:all .2s}.export-item:hover{border-color:var(--accent);background:var(--bg-hover)}.export-status{font-size:1.5rem}.export-info{flex:1}.export-title{font-weight:500;color:var(--text-primary)}.export-meta{font-size:.875rem;color:var(--text-secondary);margin-top:.25rem}.export-filters{color:var(--text-muted)}.viewer-page{display:flex;flex-direction:column;height:calc(100vh - 120px);overflow:hidden}.viewer-header{flex-shrink:0;padding-bottom:.5rem}.viewer-container{display:grid;grid-template-columns:250px 1fr;gap:1rem;flex:1;min-height:0;overflow:hidden}.threads-sidebar{background:var(--bg-secondary);border:1px solid var(--border-color);border-radius:12px;padding:1rem;overflow-y:auto}.thread-item{padding:.75rem;border-radius:8px;cursor:pointer;transition:all .2s;color:var(--text-primary)}.thread-item:hover{background:var(--bg-hover)}.thread-item.active{background:var(--bg-selected)}.messages-panel{background:var(--bg-secondary);border:1px solid var(--border-color);border-radius:12px;padding:1rem;overflow-y:auto}.message{padding:.75rem 1rem;margin-bottom:.5rem;background:var(--bg-message);border-radius:4px 12px 12px;max-width:85%}.message-header{display:flex;gap:.5rem;margin-bottom:.25rem;font-size:.8125rem}.message-author{font-weight:600;color:var(--link)}.message-date{color:var(--text-muted)}.message-text{color:var(--text-primary);white-space:pre-wrap;word-break:break-word;line-height:1.4}.message-media{margin-top:.5rem}.message-media img{max-width:300px;max-height:300px;border-radius:8px}.loading{text-align:center;padding:2rem;color:var(--text-secondary)}.error{background:#e5393526;border:1px solid var(--danger);color:#ef5350;padding:1rem;border-radius:8px;margin:1rem 0}.actions{display:flex;gap:1rem;margin-top:1.5rem}.nav-links{display:flex;gap:1rem;margin-bottom:1.5rem}.nav-links a{color:var(--link);text-decoration:none}.nav-links a:hover{text-decoration:underline}a{color:var(--link)}a:hover{color:var(--accent-hover)}.two-fa-form{margin-top:1.5rem}.two-fa-form input{margin-bottom:1rem}.chat-arrow{color:var(--text-muted);font-size:1.25rem;margin-left:auto}.settings-section{margin-bottom:1.5rem;padding-bottom:1.5rem;border-bottom:1px solid var(--border-color)}.settings-section:last-of-type{border-bottom:none}.settings-title{font-size:1rem;font-weight:500;color:var(--text-primary);margin-bottom:.75rem;display:flex;align-items:center;gap:1rem}.checkbox-label{display:flex;align-items:center;gap:.5rem;color:var(--text-primary);cursor:pointer;padding:.25rem 0}.checkbox-label.inline{font-size:.875rem;font-weight:400;color:var(--text-secondary)}.checkbox-label input[type=checkbox]{width:18px;height:18px;accent-color:var(--accent);cursor:pointer}.checkbox-group{display:flex;gap:1.5rem;margin-left:1.5rem;margin-top:.5rem}.selection-controls{display:flex;align-items:center;gap:.5rem;margin-bottom:.75rem}.selection-count{color:var(--text-secondary);font-size:.875rem;margin-left:.5rem}.selection-list{max-height:200px;overflow-y:auto;background:var(--bg-tertiary);border-radius:8px;padding:.5rem}.selection-list .checkbox-label{padding:.5rem;border-radius:4px}.selection-list .checkbox-label:hover{background:var(--bg-hover)}.username{color:var(--text-muted);font-size:.875rem;margin-left:.5rem}.date-range{display:flex;align-items:center;gap:.75rem}.date-range .input{width:auto}.date-range span{color:var(--text-secondary)}.limit-input{display:flex;align-items:center;gap:1rem}.limit-input .status-text{margin:0}