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var(--transition-base)}.url-clear:hover{color:var(--text-primary);background:#ffffff14}.analyze-btn{padding:.875rem 1.75rem;background:var(--brand-blue);border:none;border-radius:var(--radius-xl);color:#fff;font-family:var(--font-sans);font-size:var(--text-base);font-weight:var(--font-semibold);cursor:pointer;transition:background var(--transition-base),transform var(--transition-base);white-space:nowrap}.analyze-btn:hover{background:var(--brand-blue-hover);transform:translateY(-1px)}.analyze-btn:disabled{opacity:.5;cursor:not-allowed;transform:none}.tool-section{max-width:800px;margin:0 auto 2rem}.tool-input{width:100%;padding:.75rem 1rem;background:var(--bg-surface);border:1px solid var(--border-medium);border-radius:var(--radius-md);color:var(--text-primary);font-family:var(--font-mono);font-size:var(--text-base);transition:border-color var(--transition-base),box-shadow var(--transition-base)}.tool-input::placeholder{color:var(--text-tertiary);font-family:var(--font-sans)}.tool-input:focus{outline:none;border-color:var(--brand-blue);box-shadow:0 0 0 3px var(--accent-glow)}.tool-error{padding:.75rem 1rem;background:#ef44441a;border:1px solid rgba(239,68,68,.2);border-radius:var(--radius-md);color:var(--danger);font-size:var(--text-sm);margin-bottom:1rem}.score-card{display:flex;align-items:center;flex-wrap:wrap;gap:1rem 1.5rem;padding:1.5rem;background:var(--bg-surface);border:1px solid var(--border-subtle);border-radius:var(--radius-lg);margin-bottom:2rem}.score-grade{font-size:3.5rem;font-weight:var(--font-extrabold);line-height:1;min-width:70px;text-align:center}.score-info{flex:1}.score-url{font-size:var(--text-sm);font-weight:var(--font-semibold);color:var(--text-primary);word-break:break-all;margin-bottom:.25rem}.score-summary{font-size:var(--text-xs);color:var(--text-secondary)}.score-bar{height:6px;background:var(--border-subtle);border-radius:var(--radius-full);overflow:hidden;margin-top:.5rem}.score-bar-fill{height:100%;border-radius:var(--radius-full);transition:width .5s ease}.report-section{margin-bottom:1.5rem;border:1px solid var(--border-subtle);border-radius:var(--radius-lg);overflow:hidden}.report-section-header{display:flex;justify-content:space-between;align-items:center;padding:1rem 1.25rem;background:#ffffff05;border-bottom:1px solid var(--border-subtle);cursor:pointer;user-select:none}.report-section-title{display:flex;align-items:center;gap:.65rem;font-size:var(--text-sm);font-weight:var(--font-semibold);color:var(--text-primary)}.report-section-title svg{width:18px;height:18px;color:var(--brand-blue-light)}.report-section-score{font-size:var(--text-sm);font-weight:var(--font-bold);font-family:var(--font-mono)}.report-section-body{padding:1rem 1.25rem}.check-list{display:flex;flex-direction:column;gap:.35rem}.check-item{display:flex;align-items:flex-start;gap:.65rem;padding:.6rem .75rem;border-radius:var(--radius-md);border:1px solid var(--border-subtle)}.check-item.pass{background:#22c55e0a;border-color:#22c55e26}.check-item.fail{background:#ef44440a;border-color:#ef444426}.check-item.warn{background:#f59e0b0a;border-color:#f59e0b26}.check-item.info{background:#0ea5e90a;border-color:#0ea5e926}.check-icon{font-size:var(--text-sm);flex-shrink:0;line-height:1.4}.check-body{display:flex;flex-direction:column;gap:.1rem;min-width:0}.check-body strong{font-size:var(--text-sm);color:var(--text-primary)}.check-label-row{display:flex;align-items:center;gap:.35rem}.check-tip{position:relative;color:var(--text-tertiary);cursor:help;display:inline-flex;align-items:center;flex-shrink:0}.check-tip:hover{color:var(--brand-blue)}.check-tip:after{content:attr(data-tip);position:absolute;left:0;bottom:calc(100% + 8px);background:#1e293bf2;backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);color:#e2e8f0;font-size:.75rem;font-weight:400;line-height:1.6;padding:.65rem .85rem;border-radius:var(--radius-lg);border:1px solid rgba(148,163,184,.15);white-space:normal;width:280px;max-width:90vw;box-shadow:0 10px 30px #00000040;opacity:0;pointer-events:none;transition:opacity .15s ease;z-index:100}.check-tip:hover:after{opacity:1}[data-theme=light] .check-tip:after{background:#fffffff7;color:var(--slate-700, #334155);border-color:#94a3b840;box-shadow:0 10px 30px #0000001a}.check-body p{font-size:var(--text-xs);color:var(--text-secondary);margin:0;line-height:1.5}.check-body code{font-family:var(--font-mono);font-size:.75em;padding:.1rem .3rem;background:#3b82f614;border-radius:3px;color:var(--brand-blue-light);word-break:break-all}[data-theme=light] .check-body code{color:var(--brand-blue-hover);background:#3b82f60f}.loading-state{display:flex;align-items:center;justify-content:center;gap:.75rem;padding:3rem;color:var(--text-tertiary);font-size:var(--text-sm)}.spinner{width:24px;height:24px;border:2px solid var(--border-medium);border-top-color:var(--brand-blue);border-radius:50%;animation:spin .6s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.results-actions{display:flex;justify-content:flex-end;gap:.5rem;margin-bottom:1.25rem;max-width:900px}.action-btn{display:inline-flex;align-items:center;gap:.4rem;padding:.55rem 1rem;border-radius:var(--radius-md);font-size:var(--text-sm);font-weight:var(--font-semibold);cursor:pointer;transition:all var(--transition-base);border:1px solid;font-family:var(--font-sans)}.action-btn.primary{background:var(--bg-surface);border-color:var(--border-medium);color:var(--text-secondary)}.action-btn.primary:hover{background:#3b82f614;border-color:var(--brand-blue);color:var(--brand-blue);transform:translateY(-1px)}.feedback-bar{display:flex;align-items:center;justify-content:center;gap:.75rem;padding:1.25rem 1rem;border-top:1px solid var(--border-subtle)}.feedback-prompt{font-size:var(--text-sm);color:var(--text-secondary);font-weight:var(--font-medium)}.feedback-icon-btn{background:transparent;border:none;cursor:pointer;padding:.4rem;border-radius:var(--radius-md);color:var(--text-tertiary);transition:color var(--transition-base),transform var(--transition-base);display:flex;align-items:center}.feedback-icon-btn:hover{transform:scale(1.15)}.feedback-icon-btn:first-of-type:hover{color:var(--success)}.feedback-icon-btn:last-of-type:hover{color:var(--danger)}.app-footer{text-align:center;padding:1.5rem;border-top:1px solid var(--border-subtle);color:var(--text-tertiary);font-size:var(--text-xs)}.app-footer p{margin-bottom:.35rem}.app-footer a{color:var(--brand-blue);text-decoration:none;font-weight:var(--font-semibold)}.app-footer a:hover{text-decoration:underline}.copied-toast{position:fixed;bottom:2rem;left:50%;transform:translate(-50%) translateY(20px);padding:.6rem 1.25rem;background:linear-gradient(135deg,#22c55e,#16a34a);color:#fff;font-size:var(--text-sm);font-weight:var(--font-medium);border-radius:var(--radius-md);box-shadow:0 10px 25px #0000004d;opacity:0;transition:opacity .3s ease,transform .3s ease;z-index:var(--z-toast);pointer-events:none}.copied-toast.visible{opacity:1;transform:translate(-50%) translateY(0)}.og-preview-card{border:1px solid var(--border-medium);border-radius:var(--radius-lg);overflow:hidden;max-width:500px}.og-preview-image{height:200px;background-size:cover;background-position:center;background-color:var(--bg-surface)}.og-preview-image.og-no-image{display:flex;align-items:center;justify-content:center;color:var(--text-tertiary);font-size:var(--text-sm);border-bottom:1px solid var(--border-subtle)}.og-large .og-preview-image{height:260px}.og-preview-body{padding:.75rem 1rem}.og-preview-domain{font-size:.7rem;color:var(--text-tertiary);text-transform:uppercase;margin-bottom:.15rem}.og-preview-title{font-size:var(--text-base);font-weight:var(--font-semibold);color:var(--text-primary);margin-bottom:.25rem;line-height:1.3}.og-preview-desc{font-size:var(--text-xs);color:var(--text-secondary);line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.kd-input-tabs{display:flex;gap:0;border:1px solid var(--border-medium);border-radius:var(--radius-md);overflow:hidden;width:fit-content}.kd-tab{padding:.5rem 1rem;background:transparent;border:none;border-right:1px solid var(--border-medium);color:var(--text-secondary);font-family:var(--font-sans);font-size:var(--text-sm);font-weight:var(--font-medium);cursor:pointer;transition:all var(--transition-base)}.kd-tab:last-child{border-right:none}.kd-tab:hover{color:var(--text-primary);background:#3b82f60a}.kd-tab.active{background:var(--brand-blue);color:#fff}.landing-features{display:grid;grid-template-columns:repeat(3,1fr);gap:1rem;margin-bottom:3rem}.landing-feature{padding:1.25rem;background:var(--bg-surface);border:1px solid var(--border-subtle);border-radius:var(--radius-lg);transition:border-color var(--transition-base),transform var(--transition-base)}.landing-feature:hover{border-color:var(--border-medium);transform:translateY(-2px)}.landing-feature-icon{width:40px;height:40px;border-radius:var(--radius-md);display:flex;align-items:center;justify-content:center;margin-bottom:.75rem}.landing-feature h3{font-size:var(--text-sm);font-weight:var(--font-semibold);color:var(--text-primary);margin-bottom:.35rem}.landing-feature p{font-size:var(--text-xs);color:var(--text-secondary);line-height:1.6}.landing-section{margin-bottom:3rem}.landing-section h2{font-size:var(--text-xl);font-weight:var(--font-bold);color:var(--text-primary);margin-bottom:1.25rem;text-align:center}.landing-steps{display:flex;flex-direction:column;gap:1rem;max-width:600px;margin:0 auto}.landing-step{display:flex;align-items:flex-start;gap:1rem}.landing-step-num{width:32px;height:32px;border-radius:50%;background:var(--brand-blue);color:#fff;font-size:var(--text-sm);font-weight:var(--font-bold);display:flex;align-items:center;justify-content:center;flex-shrink:0}.landing-step strong{display:block;font-size:var(--text-sm);color:var(--text-primary);margin-bottom:.15rem}.landing-step p{font-size:var(--text-sm);color:var(--text-secondary);margin:0;line-height:1.5}.landing-comparison{display:grid;grid-template-columns:1fr 1fr;gap:1rem;max-width:700px;margin:0 auto}.landing-compare-card{padding:1.25rem;background:var(--bg-surface);border:1px solid var(--border-subtle);border-radius:var(--radius-lg)}.landing-compare-card h4{font-size:var(--text-sm);font-weight:var(--font-bold);margin-bottom:.75rem}.landing-compare-card ul{list-style:none;padding:0;margin:0}.landing-compare-card ul li{font-size:var(--text-xs);color:var(--text-secondary);padding:.3rem 0 .3rem 1.25rem;position:relative}.landing-compare-card ul li:before{content:"✗";position:absolute;left:0;color:var(--danger)}.landing-compare-us ul li:before{content:"✓";color:var(--success)}.landing-compare-us{border-color:#22c55e33;background:#22c55e08}.landing-tools-grid{display:grid;grid-template-columns:1fr 1fr;gap:1rem;max-width:700px;margin:0 auto}.landing-tool-card{padding:1.25rem;background:var(--bg-surface);border:1px solid var(--border-subtle);border-radius:var(--radius-lg);text-decoration:none;transition:border-color var(--transition-base),transform var(--transition-base)}.landing-tool-card:hover{border-color:var(--brand-blue);transform:translateY(-2px)}.landing-tool-card strong{display:block;font-size:var(--text-sm);color:var(--text-primary);margin-bottom:.25rem}.landing-tool-card p{font-size:var(--text-xs);color:var(--text-secondary);line-height:1.5;margin:0}[data-theme=light] .landing-feature,[data-theme=light] .landing-compare-card,[data-theme=light] .landing-tool-card{box-shadow:var(--shadow-sm)}@media (max-width: 768px){.landing-features,.landing-comparison,.landing-tools-grid{grid-template-columns:1fr}}.serp-preview-card{padding:1.25rem;background:#202124;border-radius:var(--radius-lg);border:1px solid rgba(255,255,255,.08);max-width:600px}.serp-breadcrumb{font-size:.8rem;color:#bdc1c6;margin-bottom:.25rem;font-family:Arial,sans-serif}.serp-title-preview{font-size:1.2rem;color:#8ab4f8;font-family:Arial,sans-serif;line-height:1.3;margin-bottom:.25rem;cursor:pointer}.serp-title-preview:hover{text-decoration:underline}.serp-desc-preview{font-size:.85rem;color:#bdc1c6;font-family:Arial,sans-serif;line-height:1.5}.serp-mobile{max-width:360px}.serp-mobile .serp-title-preview{font-size:1rem}.serp-mobile .serp-desc-preview{font-size:.8rem}[data-theme=light] .serp-preview-card{background:#fff;border-color:#dfe1e5}[data-theme=light] .serp-breadcrumb{color:#202124;font-size:.8rem}[data-theme=light] .serp-title-preview{color:#1a0dab}[data-theme=light] .serp-desc-preview{color:#4d5156}.meta-form{display:flex;flex-direction:column;gap:0}.meta-field{margin-bottom:1rem}.meta-field label{display:block;font-size:var(--text-xs);font-weight:var(--font-semibold);color:var(--text-tertiary);text-transform:uppercase;letter-spacing:.5px;margin-bottom:.35rem}.meta-count{font-weight:var(--font-medium);text-transform:none;letter-spacing:0}.meta-hint{font-size:var(--text-xs);color:var(--text-tertiary);margin-top:.25rem}.meta-checkbox{display:inline-flex;align-items:center;gap:.35rem;font-size:var(--text-sm);color:var(--text-secondary);cursor:pointer}.meta-checkbox input{accent-color:var(--brand-blue)}.meta-divider{height:1px;background:var(--border-subtle);margin:1rem 0}.meta-section-title{font-size:var(--text-sm);font-weight:var(--font-semibold);color:var(--text-primary);margin-bottom:1rem}[data-theme=light] .score-card,[data-theme=light] .report-section{box-shadow:var(--shadow-sm)}[data-theme=light] .report-section-header{background:#00000005}[data-theme=light] .feedback-popup{background:linear-gradient(135deg,#fffffffa,#f8fafcfc)!important;border-color:#94a3b840!important}[data-theme=light] .feedback-popup-header span{color:var(--slate-900)!important}[data-theme=light] .feedback-input{background:#f1f5f9cc!important;border-color:#94a3b84d!important;color:var(--slate-900)!important}.feedback-popup-overlay.hidden{display:none!important}[data-theme=light] .updates-card{background:linear-gradient(135deg,#fffffffa,#f8fafcfc);border-color:#94a3b840}[data-theme=light] .updates-header{border-bottom-color:#94a3b833}[data-theme=light] .updates-title h2{color:var(--slate-900)}[data-theme=light] .updates-subtitle{color:var(--slate-500)}[data-theme=light] .timeline-version{color:var(--slate-900)}[data-theme=light] .timeline-list li{color:var(--slate-700)}[data-theme=light] .timeline-dot{border-color:#fff}[data-theme=light] .updates-footer{border-top-color:#94a3b833!important}[data-theme=light] .updates-footer div{color:var(--slate-600)!important}[data-theme=light] .help-heading{color:var(--slate-900)}[data-theme=light] .help-text,[data-theme=light] .help-list li{color:var(--slate-700)}[data-theme=light] .help-list strong{color:var(--slate-900)}[data-theme=light] .updates-back-btn{color:var(--brand-blue);background:#3b82f60f;border-color:#3b82f633}@media (max-width: 768px){.app-header{padding:.75rem 1rem}.main-content{padding:1.25rem 1rem}.search-section h1{font-size:var(--text-2xl)}.url-input-row{flex-direction:column}.score-card{flex-direction:column;text-align:center}.privacy-badge span:not(.status-dot){display:none}}