:root{font-family:system-ui,Avenir,Helvetica,Arial,sans-serif;line-height:1.5;font-weight:400;color-scheme:light dark;color:#ffffffde;background-color:#242424;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}a{font-weight:500;color:#646cff;text-decoration:inherit}a:hover{color:#535bf2}body{margin:0;min-width:320px;min-height:100vh}h1{font-size:3.2em;line-height:1.1}button{border-radius:8px;border:1px solid transparent;padding:.6em 1.2em;font-size:1em;font-weight:500;font-family:inherit;background-color:#1a1a1a;cursor:pointer;transition:border-color .25s}button:hover{border-color:#646cff}button:focus,button:focus-visible{outline:4px auto -webkit-focus-ring-color}@media(prefers-color-scheme:light){:root{color:#213547;background-color:#fff}a:hover{color:#747bff}button{background-color:#f9f9f9}}.modal-card label{display:flex;flex-direction:column;gap:.4rem;font-size:13px;color:var(--text-secondary)}.modal-card label 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#667eea 0%, #764ba2 100%);--text-primary: #0f172a;--text-secondary: #334155;--text-tertiary: #64748b;--text-inverse: #ffffff;--border-light: #e2e8f0;--border-medium: #cbd5e1;--border-strong: #94a3b8;--accent-primary: #6366f1;--accent-primary-hover: #4f46e5;--accent-primary-light: #eef2ff;--accent-gradient: linear-gradient(135deg, #6366f1 0%, #8b5cf6 100%);--success: #10b981;--success-light: #d1fae5;--success-gradient: linear-gradient(135deg, #10b981 0%, #059669 100%);--warning: #f59e0b;--warning-light: #fef3c7;--error: #ef4444;--error-light: #fee2e2;--error-gradient: linear-gradient(135deg, #ef4444 0%, #dc2626 100%);--shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, .05);--shadow-md: 0 4px 6px -1px rgba(0, 0, 0, .1), 0 2px 4px -2px rgba(0, 0, 0, .06);--shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, .1), 0 4px 6px -2px rgba(0, 0, 0, .05);--shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, .1), 0 10px 10px -5px rgba(0, 0, 0, .04);--shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, .25);--shadow-glow: 0 0 20px rgba(99, 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minmax(400px,1.5fr);gap:var(--spacing-xl)}.login-page{min-height:100vh;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,#667eea,#764ba2);padding:var(--spacing-xl)}.login-backdrop{width:100%;max-width:440px}.login-card{background:var(--bg-secondary);border-radius:var(--radius-xl);padding:var(--spacing-2xl);box-shadow:var(--shadow-xl);width:100%}.login-brand{display:flex;flex-direction:column;gap:var(--spacing-xs);margin-bottom:var(--spacing-2xl);text-align:center}.login-brand p{margin:0;font-size:12px;letter-spacing:.1em;text-transform:uppercase;color:var(--text-tertiary);font-weight:600}.login-brand span{font-size:28px;font-weight:700;color:var(--text-primary);letter-spacing:-.02em}.login-card form{display:flex;flex-direction:column;gap:var(--spacing-lg)}.login-card label{display:flex;flex-direction:column;gap:var(--spacing-xs)}.login-card label span{color:var(--text-secondary);font-size:13px;font-weight:600}.login-card input{background:var(--bg-tertiary);border:1.5px solid var(--border-light);color:var(--text-primary);width:100%;border-radius:var(--radius-md);padding:.75rem 1rem;font-size:14px;transition:all .2s ease}.login-card input:focus{outline:none;border-color:var(--accent-primary);background:var(--bg-secondary);box-shadow:0 0 0 3px var(--accent-primary-light)}.login-card input::placeholder{color:var(--text-tertiary)}.login-card button{width:100%;margin-top:var(--spacing-md)}.login-hint{margin-top:var(--spacing-lg);font-size:13px;color:var(--text-secondary);text-align:center}.login-hint strong{color:var(--accent-primary);font-weight:600}.form-error{color:var(--error);font-size:13px;margin:0;padding:var(--spacing-sm);background:var(--error-light);border-radius:var(--radius-md);border:1.5px solid var(--error)}@media(max-width:1024px){.comment-crud-layout{grid-template-columns:1fr}.comment-detail{min-height:auto}.sidebar{width:240px}}@media(max-width:768px){.admin-shell{flex-direction:column}.sidebar{width:100%;height:auto;position:relative;border-right:none;border-bottom:1.5px solid var(--border-light)}.sidebar nav{flex-direction:row;overflow-x:auto}.global-banner{padding:var(--spacing-md)}.overview-grid{grid-template-columns:1fr}.content-area{padding:var(--spacing-md)}.panel{padding:var(--spacing-lg)}.comment-crud-layout{grid-template-columns:1fr}}::-webkit-scrollbar{width:8px;height:8px}::-webkit-scrollbar-track{background:var(--bg-tertiary)}::-webkit-scrollbar-thumb{background:var(--border-medium);border-radius:4px}::-webkit-scrollbar-thumb:hover{background:var(--border-strong)}@keyframes pulse{0%,to{opacity:1}50%{opacity:.5}}.chat-message{display:flex;flex-direction:column;gap:.25rem;margin-bottom:var(--spacing-md)}.chat-message--user{align-items:flex-end}.chat-message--ai,.chat-message--operator{align-items:flex-start}.chat-message__bubble{max-width:70%;padding:var(--spacing-sm) var(--spacing-md);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);word-break:break-word}.chat-message__bubble--user{background:var(--accent-primary);color:var(--text-inverse)}.chat-message__bubble--ai{background:var(--success-light);color:var(--text-primary);border:1px solid var(--success)}.chat-message__bubble--operator{background:var(--warning-light);color:var(--text-primary);border:1px solid var(--warning)}.chat-message__author{font-size:11px;font-weight:600;margin-bottom:.25rem;opacity:.8}.chat-message__text{font-size:14px;line-height:1.5}.chat-message__time{font-size:11px;color:var(--text-tertiary);padding:0 .5rem}.chat-visitor-item{padding:var(--spacing-md);border-radius:var(--radius-md);cursor:pointer;transition:all .2s ease;margin-bottom:var(--spacing-xs)}.chat-visitor-item:hover{background:var(--bg-hover)}.chat-visitor-item--selected{background:var(--accent-primary-light);border:1px solid var(--accent-primary)}.chat-visitor-item__id{font-size:13px;font-weight:600;color:var(--text-primary);margin-bottom:.25rem}.chat-visitor-item__last-message{font-size:12px;color:var(--text-secondary);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.chat-visitor-item__time{font-size:11px;color:var(--text-tertiary);margin-top:.25rem}.chat-visitor-item__unread{background:var(--error);color:var(--text-inverse);border-radius:999px;padding:.25rem .5rem;font-size:11px;font-weight:700;min-width:20px;text-align:center}select{border-radius:var(--radius-lg);border:1.5px solid var(--border-light);padding:.875rem 2.5rem .875rem 1rem;background:var(--bg-secondary);color:var(--text-primary);font-size:14px;font-family:inherit;cursor:pointer;transition:all .3s cubic-bezier(.4,0,.2,1);box-shadow:var(--shadow-sm);-webkit-appearance:none;-moz-appearance:none;appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%2364748b' d='M6 9L1 4h10z'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right .75rem center}select:hover{border-color:var(--accent-primary);box-shadow:var(--shadow-md);transform:translateY(-1px)}select:focus{outline:none;border-color:var(--accent-primary);box-shadow:0 0 0 4px var(--accent-primary-light),var(--shadow-md)}select option{background:var(--bg-secondary);color:var(--text-primary);padding:.5rem}