*{margin:0;padding:0;box-sizing:border-box}:root{--bg-primary: #ffffff;--bg-secondary: #f8f9fa;--bg-card: #ffffff;--text-primary: #1a1a1a;--text-secondary: #666666;--border-color: #e0e0e0;--shadow: 0 2px 8px rgba(0, 0, 0, .1);--shadow-hover: 0 4px 16px rgba(0, 0, 0, .15);--primary: #FF0000;--primary-hover: #cc0000;--success: #00c853;--error: #d32f2f;--spacing: 8px}[data-theme=dark]{--bg-primary: #0f0f0f;--bg-secondary: #1a1a1a;--bg-card: #1e1e1e;--text-primary: #ffffff;--text-secondary: #b0b0b0;--border-color: #333333;--shadow: 0 2px 8px rgba(0, 0, 0, .4);--shadow-hover: 0 4px 16px rgba(0, 0, 0, .6)}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,sans-serif;line-height:1.6;background-color:var(--bg-primary);color:var(--text-primary);transition:background-color .3s ease,color .3s ease;min-height:100vh}#app{min-height:100vh;display:flex;flex-direction:column}header{background-color:var(--bg-card);border-bottom:1px solid var(--border-color);padding:calc(var(--spacing) * 2) calc(var(--spacing) * 3);box-shadow:var(--shadow)}.header-content{max-width:1200px;margin:0 auto;display:flex;justify-content:space-between;align-items:center;gap:calc(var(--spacing) * 2)}.logo-section{display:flex;align-items:center;gap:calc(var(--spacing) * 2)}h1{font-size:clamp(1.5rem,4vw,2rem);font-weight:700;color:var(--primary)}.tagline{font-size:.875rem;color:var(--text-secondary);margin-top:calc(var(--spacing) * .5)}.theme-toggle{background:none;border:2px solid var(--border-color);border-radius:50%;width:44px;height:44px;cursor:pointer;display:flex;align-items:center;justify-content:center;font-size:1.25rem;transition:all .3s ease;flex-shrink:0}.theme-toggle:hover{border-color:var(--primary);transform:rotate(15deg)}.trust-banner{background:linear-gradient(135deg,var(--bg-secondary) 0%,var(--bg-card) 100%);border-top:1px solid var(--border-color);padding:calc(var(--spacing) * 1.5)}.trust-items{max-width:1200px;margin:0 auto;display:flex;justify-content:center;align-items:center;gap:calc(var(--spacing) * 4);flex-wrap:wrap}.trust-item{display:flex;align-items:center;gap:calc(var(--spacing) * .75);font-size:.875rem;color:var(--text-secondary);font-weight:500}.trust-icon{font-size:1rem;color:var(--success)}main{flex:1;padding:calc(var(--spacing) * 4) calc(var(--spacing) * 3);max-width:1200px;margin:0 auto;width:100%}.checker-ad-row{display:flex;gap:calc(var(--spacing) * 3);align-items:flex-start;margin-bottom:calc(var(--spacing) * 4)}.checker-section{flex:1;background-color:var(--bg-card);border-radius:12px;padding:calc(var(--spacing) * 4);box-shadow:var(--shadow);min-height:250px}.ad-sidebar-right{flex-shrink:0;width:300px;position:sticky;top:calc(var(--spacing) * 3)}.ad-container{background-color:#f5f5f5;border-radius:8px;overflow:hidden;margin-bottom:calc(var(--spacing) * 3)}.ad-leaderboard{width:100%;max-width:728px;margin:0 auto calc(var(--spacing) * 4) auto}.ad-placeholder{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:calc(var(--spacing) * 1);padding:calc(var(--spacing) * 3)}.ad-placeholder-leaderboard{min-height:90px}.ad-medium-rectangle .ad-placeholder{width:300px;height:250px}.ad-leaderboard .ad-placeholder{width:100%;height:90px}.ad-label{font-size:.75rem;text-transform:uppercase;color:#999;font-weight:600;letter-spacing:.5px}.ad-size{font-size:.875rem;color:#999;font-family:Courier New,monospace}.checker-section h2{font-size:1.5rem;margin-bottom:calc(var(--spacing) * 3);color:var(--text-primary)}.input-group{display:flex;gap:calc(var(--spacing) * 2);margin-bottom:calc(var(--spacing) * 2);flex-wrap:wrap}#urlInput{flex:1;min-width:250px;padding:calc(var(--spacing) * 1.5) calc(var(--spacing) * 2);border:2px solid var(--border-color);border-radius:8px;font-size:1rem;background-color:var(--bg-secondary);color:var(--text-primary);transition:border-color .3s ease}#urlInput:focus{outline:none;border-color:var(--primary)}#checkButton{padding:calc(var(--spacing) * 1.5) calc(var(--spacing) * 4);background-color:var(--primary);color:#fff;border:none;border-radius:8px;font-size:1rem;font-weight:600;cursor:pointer;transition:all .3s ease;white-space:nowrap}#checkButton:hover:not(:disabled){background-color:var(--primary-hover);transform:translateY(-2px);box-shadow:var(--shadow-hover)}#checkButton:disabled{opacity:.6;cursor:not-allowed}.monitor-option{display:flex;align-items:center;gap:calc(var(--spacing) * 1)}.monitor-option input[type=checkbox]{width:20px;height:20px;cursor:pointer;accent-color:var(--primary)}.monitor-option label{cursor:pointer;color:var(--text-secondary);font-size:.95rem}.results-section{margin-top:calc(var(--spacing) * 3);padding-top:calc(var(--spacing) * 3);border-top:1px solid var(--border-color)}.status-display{background-color:var(--bg-secondary);padding:calc(var(--spacing) * 3);border-radius:8px;text-align:center}.status-badge{display:inline-flex;align-items:center;gap:calc(var(--spacing) * 1);padding:calc(var(--spacing) * 1.5) calc(var(--spacing) * 3);border-radius:24px;font-weight:600;font-size:1.125rem;margin-bottom:calc(var(--spacing) * 2)}.status-badge.online{background-color:var(--success);color:#fff}.status-badge.offline{background-color:var(--error);color:#fff}.status-badge .indicator{width:12px;height:12px;border-radius:50%;background-color:#fff;animation:pulse 2s infinite}@keyframes pulse{0%,to{opacity:1}50%{opacity:.5}}.status-details{margin-top:calc(var(--spacing) * 2);font-size:.95rem;color:var(--text-secondary)}.monitoring-info{background-color:var(--bg-card);border:1px solid var(--primary);padding:calc(var(--spacing) * 2);border-radius:8px;margin-top:calc(var(--spacing) * 2)}.monitoring-info p{margin:calc(var(--spacing) * .5) 0;color:var(--text-secondary);font-size:.9rem}.monitoring-info strong{color:var(--primary)}#stopMonitoring{margin-top:calc(var(--spacing) * 2);padding:calc(var(--spacing) * 1) calc(var(--spacing) * 2.5);background-color:var(--error);color:#fff;border:none;border-radius:6px;cursor:pointer;font-size:.9rem;transition:all .3s ease}#stopMonitoring:hover{opacity:.9;transform:translateY(-1px)}.activity-log{margin-top:calc(var(--spacing) * 4)}.activity-log h3{font-size:1.25rem;margin-bottom:calc(var(--spacing) * 2);color:var(--text-primary)}.log-container{background-color:var(--bg-secondary);border-radius:8px;padding:calc(var(--spacing) * 2);max-height:400px;overflow-y:auto}.log-entry{padding:calc(var(--spacing) * 1.5);border-bottom:1px solid var(--border-color);display:flex;justify-content:space-between;align-items:center;gap:calc(var(--spacing) * 2);transition:background-color .2s ease}.log-entry:last-child{border-bottom:none}.log-entry:hover{background-color:var(--bg-card)}.log-time{color:var(--text-secondary);font-size:.875rem;white-space:nowrap}.log-message{flex:1;color:var(--text-primary);font-size:.95rem}.log-status{font-weight:600;font-size:.875rem;padding:calc(var(--spacing) * .5) calc(var(--spacing) * 1.5);border-radius:12px;white-space:nowrap}.log-status.online{background-color:#00c85333;color:var(--success)}.log-status.offline{background-color:#d32f2f33;color:var(--error)}.log-empty{text-align:center;color:var(--text-secondary);padding:calc(var(--spacing) * 3);font-style:italic}.quick-check-info{background-color:#4285f41a;border:1px solid rgba(66,133,244,.3);padding:calc(var(--spacing) * 1.5);border-radius:8px;margin-bottom:calc(var(--spacing) * 2);text-align:center;color:var(--text-primary);animation:fadeIn .3s ease}@keyframes fadeIn{0%{opacity:0;transform:translateY(-10px)}to{opacity:1;transform:translateY(0)}}.popular-websites-section{background-color:var(--bg-card);border-radius:12px;padding:calc(var(--spacing) * 4);box-shadow:var(--shadow);margin-bottom:calc(var(--spacing) * 4)}.popular-websites-section h2{font-size:1.75rem;margin-bottom:calc(var(--spacing) * 1);color:var(--text-primary);text-align:center}.section-subtitle{text-align:center;color:var(--text-secondary);margin-bottom:calc(var(--spacing) * 3);font-size:.95rem}.popular-websites-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:calc(var(--spacing) * 2)}.website-button{background-color:var(--bg-secondary);border:2px solid var(--border-color);border-radius:12px;padding:calc(var(--spacing) * 2.5);cursor:pointer;transition:all .3s ease;display:flex;flex-direction:column;align-items:center;gap:calc(var(--spacing) * 1.5)}.website-button:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:var(--site-color);background-color:var(--bg-card)}.website-icon{width:50px;height:50px;border-radius:50%;background-color:var(--site-color);color:#fff;display:flex;align-items:center;justify-content:center;font-size:1.5rem;font-weight:700;transition:transform .3s ease}.website-button:hover .website-icon{transform:scale(1.1)}.website-name{font-weight:600;color:var(--text-primary);font-size:.95rem}.features-section{background-color:var(--bg-card);border-radius:12px;padding:calc(var(--spacing) * 4);box-shadow:var(--shadow);margin-bottom:calc(var(--spacing) * 4)}.features-section h2{font-size:1.75rem;margin-bottom:calc(var(--spacing) * 4);color:var(--text-primary);text-align:center}.features-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:calc(var(--spacing) * 3)}.feature-card{background-color:var(--bg-secondary);border-radius:8px;padding:calc(var(--spacing) * 3);text-align:center;transition:all .3s ease}.feature-card:hover{transform:translateY(-4px);box-shadow:var(--shadow)}.feature-icon{font-size:2.5rem;margin-bottom:calc(var(--spacing) * 2)}.feature-card h3{font-size:1.125rem;margin-bottom:calc(var(--spacing) * 1);color:var(--text-primary)}.feature-card p{color:var(--text-secondary);line-height:1.6;font-size:.95rem}.how-it-works-section{background-color:var(--bg-card);border-radius:12px;padding:calc(var(--spacing) * 4);box-shadow:var(--shadow);margin-bottom:calc(var(--spacing) * 4)}.how-it-works-section h2{font-size:1.75rem;margin-bottom:calc(var(--spacing) * 4);color:var(--text-primary);text-align:center}.steps-container{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:calc(var(--spacing) * 3)}.step{display:flex;flex-direction:column;align-items:center;text-align:center;gap:calc(var(--spacing) * 2)}.step-number{width:60px;height:60px;border-radius:50%;background:linear-gradient(135deg,var(--primary) 0%,var(--primary-hover) 100%);color:#fff;display:flex;align-items:center;justify-content:center;font-size:1.5rem;font-weight:700;box-shadow:0 4px 12px #ff00004d}.step-content h3{font-size:1.125rem;margin-bottom:calc(var(--spacing) * .5);color:var(--text-primary)}.step-content p{color:var(--text-secondary);line-height:1.6;font-size:.95rem}.faq-section{background-color:var(--bg-card);border-radius:12px;padding:calc(var(--spacing) * 4);box-shadow:var(--shadow);margin-bottom:calc(var(--spacing) * 4)}.faq-section h2{font-size:1.75rem;margin-bottom:calc(var(--spacing) * 3);color:var(--text-primary);text-align:center}.faq-item{margin-bottom:calc(var(--spacing) * 3);padding-bottom:calc(var(--spacing) * 3);border-bottom:1px solid var(--border-color)}.faq-item:last-child{border-bottom:none;margin-bottom:0;padding-bottom:0}.faq-question{font-size:1.125rem;font-weight:600;color:var(--primary);margin-bottom:calc(var(--spacing) * 1)}.faq-answer{color:var(--text-secondary);line-height:1.7}footer{background-color:var(--bg-card);border-top:1px solid var(--border-color);padding:calc(var(--spacing) * 6) calc(var(--spacing) * 3) calc(var(--spacing) * 3)}.footer-content{max-width:1200px;margin:0 auto;display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:calc(var(--spacing) * 4);margin-bottom:calc(var(--spacing) * 4)}.footer-column h4{color:var(--text-primary);font-size:1rem;font-weight:600;margin-bottom:calc(var(--spacing) * 2)}.footer-column p{color:var(--text-secondary);font-size:.875rem;line-height:1.6}.footer-column ul{list-style:none;padding:0}.footer-column ul li{margin-bottom:calc(var(--spacing) * 1)}.footer-column ul li a{color:var(--text-secondary);text-decoration:none;font-size:.875rem;transition:color .2s ease}.footer-column ul li a:hover{color:var(--primary)}.footer-bottom{text-align:center;padding-top:calc(var(--spacing) * 3);border-top:1px solid var(--border-color);color:var(--text-secondary);font-size:.875rem;max-width:1200px;margin:0 auto}.error-message{background-color:#d32f2f1a;border:1px solid var(--error);color:var(--error);padding:calc(var(--spacing) * 2);border-radius:8px;margin-top:calc(var(--spacing) * 2)}.hidden{display:none}@media (max-width: 1024px){.checker-ad-row{flex-direction:column}.ad-sidebar-right{width:100%;position:static;display:flex;justify-content:center}.ad-sidebar-right .ad-container{max-width:300px}}@media (max-width: 768px){.header-content{flex-direction:column;text-align:center}.trust-items{gap:calc(var(--spacing) * 2)}.input-group{flex-direction:column}#urlInput{min-width:100%}#checkButton{width:100%}.log-entry{flex-direction:column;align-items:flex-start;gap:calc(var(--spacing) * 1)}.checker-section,.faq-section,.popular-websites-section,.features-section,.how-it-works-section{padding:calc(var(--spacing) * 2.5)}.popular-websites-grid{grid-template-columns:repeat(auto-fit,minmax(120px,1fr))}.features-grid,.steps-container{grid-template-columns:1fr}.footer-content{grid-template-columns:1fr;gap:calc(var(--spacing) * 3)}.ad-sidebar-right,.ad-leaderboard{display:none}}@media (max-width: 480px){h1,.checker-section h2,.faq-section h2,.popular-websites-section h2,.features-section h2,.how-it-works-section h2{font-size:1.25rem}.status-badge{font-size:1rem;padding:calc(var(--spacing) * 1) calc(var(--spacing) * 2)}.popular-websites-grid{grid-template-columns:repeat(2,1fr)}.website-button{padding:calc(var(--spacing) * 2)}.website-icon{width:40px;height:40px;font-size:1.25rem}.trust-items{flex-direction:column;gap:calc(var(--spacing) * 1)}}