:root{--brand-primary: #2563EB;--brand-primary-hover: #1D4ED8;--brand-accent: #059669;--bg-app: #F8FAFC;--bg-panel: #FFFFFF;--bg-card: #F1F5F9;--bg-dropzone: rgba(241, 245, 249, .5);--text-primary: #0F172A;--text-secondary: #1E293B;--text-muted: #475569;--border-color: #E2E8F0;--border-focus: #3B82F6;--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 -1px 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);--radius-sm: 6px;--radius-md: 12px;--radius-lg: 16px;--sidebar-width: 350px}body.dark-theme{--bg-app: #0F172A;--bg-panel: #1E293B;--bg-card: #334155;--bg-dropzone: rgba(30, 41, 59, .5);--text-primary: #F8FAFC;--text-secondary: #F1F5F9;--text-muted: #CBD5E1;--border-color: #334155}*{box-sizing:border-box;margin:0;padding:0}body{font-family:Inter,system-ui,-apple-system,sans-serif;background-color:var(--bg-app);color:var(--text-primary);line-height:1.5;-webkit-font-smoothing:antialiased}.app-container{max-width:1440px;margin:0 auto;padding:0 24px;display:flex;flex-direction:column;min-height:100vh}.app-header{display:flex;justify-content:space-between;align-items:center;padding:24px 0;border-bottom:1px solid var(--border-color);margin-bottom:24px}.logo-container{display:flex;align-items:center;gap:12px}.logo-container h1{font-size:1.5rem;font-weight:700;letter-spacing:-.02em;background:linear-gradient(135deg,#60a5fa,#3b82f6);-webkit-background-clip:text;-webkit-text-fill-color:transparent;line-height:1.2}.brand-text{display:flex;flex-direction:column}.subheading{font-size:.75rem;color:var(--text-secondary);font-weight:500;text-transform:uppercase;letter-spacing:.05em}.header-actions{display:flex;align-items:center;gap:16px}.security-badge{display:flex;align-items:center;gap:8px;background-color:#10b9811a;border:1px solid rgba(16,185,129,.2);padding:8px 16px;border-radius:999px;font-size:.875rem;color:var(--brand-accent)}.security-badge strong{font-weight:600}.btn-icon{display:flex;align-items:center;justify-content:center;width:40px;height:40px;padding:0;border-radius:50%;color:var(--text-secondary);background-color:transparent;border:1px solid var(--border-color);cursor:pointer;transition:all .2s}.btn-icon:hover{background-color:var(--bg-card);color:var(--text-primary)}.split-layout{display:flex;gap:24px;align-items:flex-start}.panel{background-color:var(--bg-panel);border-radius:var(--radius-lg);border:1px solid var(--border-color);padding:24px;box-shadow:var(--shadow-lg)}.controls-panel{width:var(--sidebar-width);flex-shrink:0}.preview-panel{flex-grow:1;min-width:0;display:flex;flex-direction:column;gap:24px}.panel-title{font-size:1.25rem;font-weight:600;margin-bottom:20px;color:var(--text-primary)}.rules-container{display:flex;flex-direction:column;gap:16px}.rule-card{background-color:var(--bg-card);border-radius:var(--radius-md);padding:16px;border:1px solid transparent;transition:all .2s ease}.rule-card:focus-within,.rule-card:hover{border-color:#3b82f680;box-shadow:0 0 0 2px #3b82f61a}.rule-card.disabled{opacity:.5;pointer-events:none}.rule-card.disabled .rule-header{pointer-events:auto}.rule-header{display:flex;align-items:center;gap:12px;margin-bottom:16px}.rule-header h3{font-size:1rem;font-weight:500}.input-group{display:flex;gap:8px}.input-group input,.input-group select{width:100%;background-color:var(--bg-app);border:1px solid var(--border-color);color:var(--text-primary);padding:10px 12px;border-radius:var(--radius-sm);font-family:inherit;font-size:.875rem;transition:border-color .2s,box-shadow .2s}.input-group input:focus,.input-group select:focus{outline:none;border-color:var(--brand-primary);box-shadow:0 0 0 2px #3b82f633}.radio-group,.checkbox-group{display:flex;flex-direction:column;gap:10px}.radio-group label,.checkbox-group label{display:flex;align-items:center;gap:8px;font-size:.875rem;cursor:pointer;color:var(--text-secondary)}.radio-group input,.checkbox-group input{accent-color:var(--brand-primary);width:16px;height:16px}.toggle-switch{position:relative;display:inline-block;width:40px;height:24px}.toggle-switch input{opacity:0;width:0;height:0}.slider{position:absolute;cursor:pointer;top:0;left:0;right:0;bottom:0;background-color:var(--border-color);transition:.3s;border-radius:24px}.slider:before{position:absolute;content:"";height:18px;width:18px;left:3px;bottom:3px;background-color:#fff;transition:.3s;border-radius:50%}input:checked+.slider{background-color:var(--brand-primary)}input:focus+.slider{box-shadow:0 0 1px var(--brand-primary)}input:checked+.slider:before{transform:translate(16px)}.dropzone{border:2px dashed var(--border-color);border-radius:var(--radius-md);padding:48px 24px;text-align:center;background-color:var(--bg-dropzone);cursor:pointer;transition:all .2s ease;position:relative;overflow:hidden}.dropzone:hover,.dropzone.dragover{border-color:var(--brand-primary);background-color:#3b82f60d}.drop-content{display:flex;flex-direction:column;align-items:center;gap:8px;pointer-events:none}.upload-icon{color:var(--brand-primary);margin-bottom:8px}.dropzone h3{font-size:1.125rem;font-weight:600}.dropzone p{color:var(--text-secondary);font-size:.875rem}.file-limit{display:inline-block;margin-top:12px;font-size:.75rem;background-color:#94a3b81a;color:var(--text-secondary);padding:4px 12px;border-radius:999px}.preview-header{display:flex;justify-content:space-between;align-items:center}.action-buttons{display:flex;gap:12px}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:10px 20px;border-radius:var(--radius-sm);font-weight:600;font-size:.875rem;cursor:pointer;transition:all .2s;border:none;font-family:inherit}.btn:disabled{opacity:.5;cursor:not-allowed}.btn-primary{background-color:var(--brand-primary);color:#fff;box-shadow:0 4px 12px #3b82f64d}.btn-primary:hover:not(:disabled){background-color:var(--brand-primary-hover);transform:translateY(-1px);box-shadow:0 6px 16px #3b82f666}.btn-secondary{background-color:transparent;color:var(--text-primary);border:1px solid var(--border-color)}.btn-secondary:hover:not(:disabled){background-color:var(--bg-card);border-color:var(--text-secondary)}.table-container{background-color:var(--bg-app);border-radius:var(--radius-md);border:1px solid var(--border-color);overflow:auto;max-height:500px}table{width:100%;border-collapse:collapse;text-align:left;font-size:.875rem}th{position:sticky;top:0;background-color:var(--bg-card);padding:12px 16px;font-weight:500;color:var(--text-secondary);border-bottom:1px solid var(--border-color);z-index:10}td{padding:12px 16px;border-bottom:1px solid var(--border-color);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:0}tr:last-child td{border-bottom:none}tr:hover td{background-color:#ffffff05}.arrow-cell{text-align:center;color:var(--text-muted)}.new-filename{color:var(--brand-accent);font-weight:500}.empty-state{text-align:center;padding:48px;color:var(--text-muted);font-style:italic;max-width:none;white-space:normal}.ad-placeholder{display:flex;align-items:center;justify-content:center;background-color:var(--bg-panel);border:1px solid var(--border-color);border-radius:var(--radius-sm);color:var(--text-muted);font-size:.75rem;text-transform:uppercase;letter-spacing:.05em;overflow:hidden}.ad-leaderboard-container{margin:40px auto;width:728px;height:90px}.ad-placeholder.leaderboard{width:728px;height:90px}.ad-placeholder.inline-rectangle{width:300px;height:250px}.ad-skyscraper-container{margin-left:20px}.ad-leaderboard-container,.ad-top-leaderboard-container{width:100%;display:flex;justify-content:center;margin-top:20px}.ad-in-article-container{width:100%;display:flex;justify-content:center;margin:30px 0}.ad-placeholder.skyscraper{width:160px;height:600px;position:sticky;top:24px}.loader{border:2px solid rgba(255,255,255,.3);border-radius:50%;border-top:2px solid white;width:14px;height:14px;animation:spin 1s linear infinite;display:inline-block}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}@media (min-width: 1280px){.ad-skyscraper-container{display:block}}@media (max-width: 1024px){.split-layout{flex-direction:column}.controls-panel{width:100%}}.seo-content{max-width:800px;margin:40px auto;padding:40px;background-color:var(--bg-panel);border-radius:var(--radius-lg);border:1px solid var(--border-color)}.seo-section{margin-bottom:32px}.seo-section:last-child{margin-bottom:0}.seo-section h2{font-size:1.5rem;font-weight:600;margin-bottom:16px;color:var(--text-primary)}.seo-section h3{font-size:1.125rem;font-weight:500;margin-bottom:8px;color:var(--text-primary)}.seo-section p{color:var(--text-secondary);margin-bottom:16px;line-height:1.6}.seo-section ol{padding-left:24px;color:var(--text-secondary)}.seo-section li{margin-bottom:8px}.seo-section strong{color:var(--text-primary)}.faq-item{margin-bottom:24px;padding-bottom:24px;border-bottom:1px solid var(--border-color)}.faq-item:last-child{margin-bottom:0;padding-bottom:0;border-bottom:none}.app-footer{text-align:center;padding:32px 0;color:var(--text-muted);font-size:.875rem;border-top:1px solid var(--border-color);margin-top:40px}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border-width:0}