:root{--sentiment-bg-primary:#f9fafb;--sentiment-bg-secondary:#ffffff;--sentiment-bg-card:#ffffff;--sentiment-bg-hover:#f3f4f6;--sentiment-text-primary:#111827;--sentiment-text-secondary:#4b5563;--sentiment-text-muted:#6b7280;--sentiment-accent-primary:#6366f1;--sentiment-accent-hover:#4f46e5;--fresh-green:#22c55e;--fresh-bg:#dcfce7;--fresh-text:#166534;--rotten-red:#ef4444;--rotten-bg:#fee2e2;--rotten-text:#991b1b;--confidence-high:#22c55e;--confidence-medium:#eab308;--confidence-low:#ef4444;--sentiment-border-color:#e5e7eb;--sentiment-border-focus:#6366f1;--error-bg:#fef2f2;--error-border:#fca5a5;--error-text:#991b1b;--spacing-xs:4px;--spacing-sm:8px;--spacing-md:16px;--spacing-lg:24px;--spacing-xl:32px;--spacing-2xl:48px;--radius-sm:6px;--radius-md:8px;--radius-lg:12px;--radius-full:9999px;--shadow-sm:0px 1px 2px rgba(0,0,0,0.05);--shadow-md:0px 2px 6px rgba(0,0,0,0.05);--shadow-hover:0px 4px 12px rgba(0,0,0,0.1);--transition-fast:0.2s ease;--transition-normal:0.3s ease}.dark{--sentiment-bg-primary:#0f172a;--sentiment-bg-secondary:#1e293b;--sentiment-bg-card:#1e293b;--sentiment-bg-hover:#334155;--sentiment-text-primary:#f9fafb;--sentiment-text-secondary:#94a3b8;--sentiment-text-muted:#64748b;--sentiment-accent-primary:#818cf8;--sentiment-accent-hover:#6366f1;--fresh-green:#4ade80;--fresh-bg:#14532d;--fresh-text:#bbf7d0;--rotten-red:#f87171;--rotten-bg:#7f1d1d;--rotten-text:#fecaca;--sentiment-border-color:#334155;--sentiment-border-focus:#818cf8;--error-bg:#451a1a;--error-border:#f87171;--error-text:#fecaca;--shadow-sm:0px 1px 2px rgba(0,0,0,0.2);--shadow-md:0px 2px 6px rgba(0,0,0,0.25);--shadow-hover:0px 4px 16px rgba(0,0,0,0.35)}.sentiment-page{min-height:100vh;background:var(--sentiment-bg-primary);color:var(--sentiment-text-primary);line-height:1.5;transition:background-color var(--transition-normal),color var(--transition-normal)}.sentiment-page-offline{display:flex;align-items:center;justify-content:center;padding:var(--spacing-2xl) var(--spacing-lg)}.offline-card{background:var(--sentiment-bg-card);padding:var(--spacing-xl);border-radius:var(--radius-lg);text-align:center;max-width:480px;border:1px solid var(--sentiment-border-color);box-shadow:var(--shadow-md)}.offline-card h2{margin:0 0 var(--spacing-md) 0;color:var(--error-text);font-size:1.25rem;font-weight:600}.offline-card p{margin:0 0 var(--spacing-md) 0;color:var(--sentiment-text-secondary);font-size:.95rem}.offline-card button{background:var(--sentiment-accent-primary);color:white;border:none;padding:10px 20px;border-radius:var(--radius-md);cursor:pointer;font-weight:500;font-size:.9rem;transition:background-color var(--transition-fast),transform var(--transition-fast)}.offline-card button:hover{background:var(--sentiment-accent-hover);transform:translateY(-2px)}.sentiment-header{background:var(--sentiment-bg-secondary);padding:var(--spacing-xl) var(--spacing-lg);border-bottom:1px solid var(--sentiment-border-color);transition:background-color var(--transition-normal),border-color var(--transition-normal)}.sentiment-header-content{max-width:1200px;margin:0 auto;text-align:center}.sentiment-header h1{margin:0 0 var(--spacing-md) 0;font-size:2rem;font-weight:700;color:var(--sentiment-text-primary);letter-spacing:-.025em}.sentiment-subtitle{margin:0 0 var(--spacing-lg) 0;color:var(--sentiment-text-secondary);font-size:1rem;max-width:640px;margin-left:auto;margin-right:auto;line-height:1.6}.sentiment-subtitle strong{color:var(--sentiment-text-primary);font-weight:600}.model-stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(120px,1fr));gap:var(--spacing-md);max-width:720px;margin:0 auto}.stat-item{background:var(--sentiment-bg-card);padding:var(--spacing-md);border-radius:var(--radius-lg);border:1px solid var(--sentiment-border-color);text-align:center;box-shadow:var(--shadow-sm);transition:box-shadow var(--transition-fast),transform var(--transition-fast)}.stat-item:hover{box-shadow:var(--shadow-hover);transform:translateY(-2px)}.stat-value{display:block;font-size:1.25rem;font-weight:700;color:var(--sentiment-accent-primary);margin-bottom:4px;letter-spacing:-.025em}.stat-label{font-size:.75rem;color:var(--sentiment-text-secondary);text-transform:uppercase;letter-spacing:.05em;font-weight:500}.sentiment-main{max-width:800px;margin:0 auto;padding:var(--spacing-xl) var(--spacing-lg)}.sentiment-input-section{margin-bottom:var(--spacing-xl)}.input-card{background:var(--sentiment-bg-card);padding:var(--spacing-lg);border-radius:var(--radius-lg);border:1px solid var(--sentiment-border-color);box-shadow:var(--shadow-md);transition:box-shadow var(--transition-fast),border-color var(--transition-fast)}.input-card:hover{box-shadow:var(--shadow-hover)}.input-label{display:block;margin-bottom:var(--spacing-md);font-weight:600}.input-card textarea,.input-label{color:var(--sentiment-text-primary);font-size:.95rem}.input-card textarea{width:100%;padding:var(--spacing-md);background:var(--sentiment-bg-primary);border:1px solid var(--sentiment-border-color);border-radius:var(--radius-md);line-height:1.5;resize:vertical;min-height:140px;transition:border-color var(--transition-fast),box-shadow var(--transition-fast);font-family:inherit}.input-card textarea:focus{outline:none;border-color:var(--sentiment-border-focus);box-shadow:0 0 0 3px rgba(99,102,241,.1)}.input-card textarea:disabled{opacity:.6;cursor:not-allowed;background:var(--sentiment-bg-hover)}.input-footer{justify-content:space-between;margin-top:var(--spacing-md);flex-wrap:wrap;gap:var(--spacing-sm)}.char-counter,.input-footer{display:flex;align-items:center}.char-counter{font-size:.8rem;color:var(--sentiment-text-muted);gap:var(--spacing-md)}.char-counter .warning{color:var(--rotten-red);font-weight:500}.shortcut-hint{color:var(--sentiment-text-muted);font-size:.75rem}.shortcut-hint kbd{background:var(--sentiment-bg-hover);padding:2px 6px;border-radius:var(--radius-sm);border:1px solid var(--sentiment-border-color);font-family:monospace;font-size:.7rem;color:var(--sentiment-text-secondary)}.analyze-btn{background:var(--sentiment-accent-primary);color:white;border:none;padding:10px 24px;border-radius:var(--radius-full);font-size:.9rem;font-weight:500;cursor:pointer;transition:background-color var(--transition-fast),transform var(--transition-fast),box-shadow var(--transition-fast);display:flex;align-items:center;gap:8px}.analyze-btn:hover:not(:disabled){background:var(--sentiment-accent-hover);transform:translateY(-2px);box-shadow:var(--shadow-hover)}.analyze-btn:active:not(:disabled){transform:translateY(0)}.analyze-btn:disabled{background:var(--sentiment-bg-hover);color:var(--sentiment-text-muted);cursor:not-allowed;transform:none;box-shadow:none}.btn-loading{display:flex;align-items:center;gap:8px}.spinner{width:14px;height:14px;border:2px solid rgba(255,255,255,.3);border-top-color:white;border-radius:50%;animation:sentiment-spin .8s linear infinite}@keyframes sentiment-spin{to{transform:rotate(1turn)}}.error-banner{display:flex;align-items:center;gap:var(--spacing-md);background:var(--error-bg);border:1px solid var(--error-border);color:var(--error-text);padding:var(--spacing-md) var(--spacing-lg);border-radius:var(--radius-lg);margin-bottom:var(--spacing-lg);font-size:.9rem}.error-icon{font-size:1.1rem;flex-shrink:0}.error-close{margin-left:auto;background:none;border:none;color:var(--error-text);cursor:pointer;font-size:1.1rem;padding:0;opacity:.7;transition:opacity var(--transition-fast);line-height:1}.error-close:hover{opacity:1}.sentiment-result-section{margin-bottom:var(--spacing-xl)}.result-card{padding:var(--spacing-lg);border-radius:var(--radius-lg);border:1px solid var(--sentiment-border-color);box-shadow:var(--shadow-md);animation:sentiment-slide-in var(--transition-normal);transition:box-shadow var(--transition-fast),border-color var(--transition-fast)}.result-card:hover{box-shadow:var(--shadow-hover)}.result-card.fresh{background:var(--fresh-bg);border-color:var(--fresh-green)}.result-card.rotten{background:var(--rotten-bg);border-color:var(--rotten-red)}@keyframes sentiment-slide-in{0%{opacity:0;transform:translateY(12px)}to{opacity:1;transform:translateY(0)}}.result-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:var(--spacing-lg);flex-wrap:wrap;gap:var(--spacing-sm)}.result-sentiment{margin:0;font-size:1.5rem;font-weight:700;color:var(--sentiment-text-primary);letter-spacing:-.025em}.result-card.fresh .result-sentiment{color:var(--fresh-text)}.result-card.rotten .result-sentiment{color:var(--rotten-text)}.result-probability{color:var(--sentiment-text-secondary);font-size:.85rem;font-weight:500}.result-confidence{margin-bottom:var(--spacing-md)}.confidence-label{display:flex;justify-content:space-between;margin-bottom:var(--spacing-sm);font-size:.85rem;color:var(--sentiment-text-secondary)}.confidence-value{font-weight:600;color:var(--sentiment-text-primary)}.confidence-bar{height:8px;background:var(--sentiment-bg-hover);border-radius:var(--radius-full);overflow:hidden}.confidence-fill{height:100%;border-radius:var(--radius-full);transition:width var(--transition-normal)}.result-message{margin:0 0 var(--spacing-md) 0;color:var(--sentiment-text-primary);font-size:.95rem;font-style:italic;line-height:1.5}.result-meta{display:flex;align-items:center;gap:var(--spacing-sm);color:var(--sentiment-text-muted);font-size:.8rem}.result-meta span:not(:last-child):after{content:"•";margin-left:var(--spacing-sm);color:var(--sentiment-border-color)}.sentiment-history-section{margin-bottom:var(--spacing-xl)}.history-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:var(--spacing-md)}.history-header h3{margin:0;font-size:1.1rem;font-weight:600;color:var(--sentiment-text-primary)}.clear-history-btn{background:none;border:1px solid var(--sentiment-border-color);color:var(--sentiment-text-secondary);padding:6px 12px;border-radius:var(--radius-md);cursor:pointer;font-size:.8rem;font-weight:500;transition:all var(--transition-fast)}.clear-history-btn:hover{background:var(--sentiment-bg-hover);color:var(--sentiment-text-primary);border-color:var(--sentiment-accent-primary)}.history-list{display:flex;flex-direction:column;gap:var(--spacing-sm)}.history-item{display:flex;justify-content:space-between;align-items:flex-start;gap:var(--spacing-md);padding:var(--spacing-md);background:var(--sentiment-bg-card);border-radius:var(--radius-lg);border:1px solid var(--sentiment-border-color);box-shadow:var(--shadow-sm);transition:border-color var(--transition-fast),box-shadow var(--transition-fast),transform var(--transition-fast)}.history-item:hover{border-color:var(--sentiment-accent-primary);box-shadow:var(--shadow-hover);transform:translateY(-2px)}.history-content{flex:1;min-width:0}.history-badge{display:inline-flex;align-items:center;padding:4px 12px;border-radius:var(--radius-full);font-size:.7rem;font-weight:600;text-transform:uppercase;letter-spacing:.05em;margin-bottom:var(--spacing-sm)}.history-badge.fresh{background:var(--fresh-bg);color:var(--fresh-text)}.history-badge.rotten{background:var(--rotten-bg);color:var(--rotten-text)}.history-text{margin:0;color:var(--sentiment-text-secondary);font-size:.9rem;line-height:1.4;word-break:break-word}.history-meta{display:flex;flex-direction:column;align-items:flex-end;gap:var(--spacing-xs);font-size:.75rem;color:var(--sentiment-text-muted);white-space:nowrap;flex-shrink:0}.history-confidence{font-weight:600;color:var(--sentiment-text-primary)}.sentiment-info-section{background:var(--sentiment-bg-card);padding:var(--spacing-lg);border-radius:var(--radius-lg);border:1px solid var(--sentiment-border-color);box-shadow:var(--shadow-md);margin-bottom:var(--spacing-xl)}.sentiment-info-section h3{margin:0 0 var(--spacing-lg) 0;text-align:center;font-size:1.1rem;font-weight:600;color:var(--sentiment-text-primary)}.info-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:var(--spacing-md)}.info-card{text-align:center;padding:var(--spacing-md)}.info-card h4{margin:0 0 var(--spacing-sm) 0;color:var(--sentiment-accent-primary);font-size:.95rem;font-weight:600}.info-card p{margin:0;color:var(--sentiment-text-secondary);font-size:.85rem;line-height:1.5}.sentiment-footer{text-align:center;padding:var(--spacing-lg);border-top:1px solid var(--sentiment-border-color);color:var(--sentiment-text-muted);font-size:.85rem;transition:border-color var(--transition-normal)}@media (max-width:768px){.sentiment-header h1{font-size:1.5rem}.sentiment-subtitle{font-size:.95rem}.model-stats{grid-template-columns:repeat(2,1fr)}.input-footer{flex-direction:column;align-items:stretch}.char-counter{justify-content:center;order:2}.analyze-btn{width:100%;justify-content:center;order:1}.result-header{align-items:flex-start}.history-item,.result-header{flex-direction:column}.history-meta{flex-direction:row;justify-content:flex-start;gap:var(--spacing-md);width:100%}}@media (max-width:480px){.sentiment-header,.sentiment-main{padding:var(--spacing-lg) var(--spacing-md)}.model-stats{grid-template-columns:1fr 1fr}.result-sentiment{font-size:1.25rem}.history-item,.input-card,.result-card,.sentiment-info-section{padding:var(--spacing-md)}}@media (prefers-reduced-motion:reduce){*,:after,:before{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}.history-item:hover,.input-card:hover,.result-card:hover,.stat-item:hover{transform:none!important}}@media print{:root{--sentiment-bg-primary:#ffffff!important;--sentiment-bg-secondary:#ffffff!important;--sentiment-bg-card:#ffffff!important;--sentiment-text-primary:#000000!important;--sentiment-text-secondary:#333333!important}.sentiment-page{background:white!important;color:black!important}.history-item,.input-card,.result-card{box-shadow:none!important;border:1px solid #ccc!important}.analyze-btn,.clear-history-btn{display:none!important}}