.hero{text-align:center;background:linear-gradient(145deg,#eef8ff,#f8fdff);padding:4rem 1.5rem 3rem}.back-link{display:inline-block;color:var(--muted);text-decoration:none;font-size:.9rem;margin-bottom:1rem;transition:color .2s}.back-link:hover{color:var(--accent-blue)}.hero h1{font-family:Outfit,system-ui,sans-serif;font-size:clamp(1.8rem,4vw,2.5rem);font-weight:800;margin-bottom:.75rem}.hero p{color:var(--muted);max-width:600px;margin:0 auto;font-size:1.1rem}.tool-section{padding:3rem 1.5rem;max-width:1000px;margin:0 auto}.tool-container{background:#fff;border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow-soft);padding:2rem}.tool-form{display:flex;flex-direction:column;gap:1.5rem}.form-row{display:grid;grid-template-columns:1fr 1fr;gap:1.5rem}@media(max-width:600px){.form-row{grid-template-columns:1fr}}.form-group{display:flex;flex-direction:column;gap:.5rem}.form-group label{font-weight:600;color:var(--text);font-size:.95rem}.form-group input,.form-group select{padding:.75rem 1rem;border:1px solid var(--border);border-radius:var(--radius);font-size:1rem;color:var(--text);background:#fff}.form-group input:focus,.form-group select:focus{outline:none;border-color:var(--accent-blue);box-shadow:0 0 0 3px #2ec0f91a}.form-group input::placeholder{color:var(--muted)}.hint{font-size:.8rem;color:var(--muted)}.form-group select{cursor:pointer;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='%2363676d' d='M6 8L1 3h10z'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 1rem center}.tool-form .btn{align-self:flex-start;padding:.85rem 2rem;font-size:1rem}.results-section{margin-top:2rem;display:none}.results-section.visible{display:block}.loading{text-align:center;padding:3rem;display:none}.loading.visible{display:block}.spinner{width:40px;height:40px;border:3px solid var(--border);border-top-color:var(--accent-blue);border-radius:50%;margin:0 auto 1rem;animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.loading p{color:var(--muted)}.cluster-output{display:flex;flex-direction:column;gap:2rem}.usage-note{text-align:center;color:var(--muted);font-size:.85rem;padding:.75rem;background:var(--bg2);border-radius:var(--radius)}.pillar-card{background:linear-gradient(135deg,#1e88e5,#42a5f5);border-radius:var(--radius);padding:2.5rem 2rem;color:#fff;text-align:center;box-shadow:0 4px 20px #1e88e54d}.pillar-card h2{font-family:Outfit,system-ui,sans-serif;font-size:1.6rem;font-weight:800;margin-bottom:1rem;color:#fff;text-shadow:0 1px 2px rgba(0,0,0,.1)}.pillar-card .pillar-type{font-size:.7rem;text-transform:uppercase;letter-spacing:1.5px;background:#fff3;display:inline-block;padding:.3rem .75rem;border-radius:20px;margin-bottom:1rem;font-weight:600}.pillar-card p{font-size:1rem;color:#fffffff2;max-width:650px;margin:0 auto 1.5rem;line-height:1.7}.pillar-meta{display:flex;justify-content:center;gap:2.5rem;flex-wrap:wrap;padding-top:1.5rem;border-top:1px solid rgba(255,255,255,.2)}.pillar-meta-item{text-align:center}.pillar-meta-item .label{font-size:.65rem;text-transform:uppercase;letter-spacing:.5px;color:#fffc;display:block;margin-bottom:.25rem}.pillar-meta-item .value{font-size:1.2rem;font-weight:700;color:#fff}.cluster-section{background:var(--bg2);border:1px solid var(--border);border-radius:var(--radius);padding:1.5rem}.cluster-section-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:1rem;gap:1rem}.cluster-section h3{font-family:Outfit,system-ui,sans-serif;font-size:1.1rem;font-weight:700;color:var(--accent-green);margin:0}.copy-btn{background:var(--accent-green);color:#fff;border:none;padding:.4rem .8rem;border-radius:4px;font-size:.8rem;font-weight:600;cursor:pointer;transition:background .2s;white-space:nowrap}.copy-btn:hover{background:#45a33e}.copy-btn.copied{background:var(--text)}.section-description{font-size:.85rem;color:var(--muted);margin-bottom:1rem}.cluster-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:1rem}.cluster-card{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:1.25rem;transition:border-color .2s,box-shadow .2s}.cluster-card:hover{border-color:var(--accent-blue);box-shadow:0 2px 8px #2ec0f91a}.cluster-card-header{display:flex;justify-content:space-between;align-items:flex-start;gap:.5rem;margin-bottom:.75rem}.cluster-title{font-weight:600;color:var(--text);font-size:.95rem;line-height:1.3;flex:1}.cluster-type-badge{font-size:.65rem;padding:.2rem .5rem;border-radius:10px;font-weight:600;text-transform:uppercase;white-space:nowrap;flex-shrink:0}.cluster-type-badge.how-to{background:#dbeafe;color:#1e40af}.cluster-type-badge.listicle{background:#fef3c7;color:#92400e}.cluster-type-badge.guide{background:#dcfce7;color:#166534}.cluster-type-badge.comparison{background:#f3e8ff;color:#6b21a8}.cluster-type-badge.case-study{background:#ffe4e6;color:#9f1239}.cluster-description{font-size:.85rem;color:var(--muted);line-height:1.5;margin-bottom:.75rem}.cluster-meta{display:flex;gap:1rem;padding-top:.75rem;border-top:1px solid var(--border);font-size:.75rem}.cluster-meta-item{display:flex;flex-direction:column;gap:.1rem}.cluster-meta-item .label{color:var(--muted);text-transform:uppercase;letter-spacing:.3px}.cluster-meta-item .value{font-weight:600;color:var(--text)}.linking-section{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:1.5rem}.linking-section h3{font-family:Outfit,system-ui,sans-serif;font-size:1.1rem;font-weight:700;color:var(--accent-blue);margin:0 0 1rem}.linking-list{list-style:none;padding:0;margin:0}.linking-list li{padding:.75rem 0;border-bottom:1px solid var(--border);font-size:.9rem;color:var(--text);display:flex;align-items:flex-start;gap:.75rem}.linking-list li:last-child{border-bottom:none}.linking-icon{color:var(--accent-green);font-weight:700;flex-shrink:0}.info-section{background:var(--bg2);padding:4rem 1.5rem}.info-content{max-width:900px;margin:0 auto}.info-content h2{font-family:Outfit,system-ui,sans-serif;font-size:1.6rem;font-weight:700;color:var(--text);margin:3rem 0 1rem;padding-bottom:.6rem;border-bottom:2px solid var(--border)}.info-content h2:first-child{margin-top:0}.info-content h3{font-family:Outfit,system-ui,sans-serif;font-size:1.05rem;font-weight:700;color:var(--accent-blue);margin:1.25rem 0 .4rem;padding:.9rem 1.25rem;background:#fff;border:1px solid var(--border);border-left:4px solid var(--accent-blue);border-radius:0 var(--radius) var(--radius) 0}.info-content p{color:var(--muted);line-height:1.75;margin-bottom:1rem;padding:0 .25rem}.info-content p strong{color:var(--text);font-weight:600}.info-content ol{counter-reset:step;list-style:none;padding:0;margin:1rem 0;display:flex;flex-direction:column;gap:.6rem}.info-content ol li{counter-increment:step;background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:.9rem 1rem .9rem 3.25rem;position:relative;color:var(--text);line-height:1.6;font-size:.95rem}.info-content ol li:before{content:counter(step);position:absolute;left:.85rem;top:50%;transform:translateY(-50%);width:1.6rem;height:1.6rem;background:var(--accent-blue);color:#fff;border-radius:50%;font-size:.8rem;font-weight:700;display:flex;align-items:center;justify-content:center}.info-content hr{border:none;border-top:1px solid var(--border);margin:2.5rem 0}.faq-section-tool{padding:4rem 1.5rem;background:#fff;width:100vw;margin-left:calc(-50vw + 50%);max-width:none}.faq-section-tool h2{text-align:center;font-family:Outfit,system-ui,sans-serif;font-size:1.75rem;font-weight:700;margin-bottom:3rem;color:var(--text)}.faq-list{max-width:900px;margin:0 auto}.faq-item{padding:2rem 0;border-bottom:1px solid var(--border);transition:all .3s ease}.faq-item:first-child{padding-top:0}.faq-item:hover{padding-left:1rem;padding-right:1rem;background:#2ec0f90d;border-radius:8px;border-bottom-color:var(--accent-blue)}.faq-item h3{font-family:Outfit,system-ui,sans-serif;color:var(--text);font-size:1.1rem;font-weight:700;margin-bottom:.75rem;transition:color .3s ease;background:none;border:none;padding:0;border-radius:0}.faq-item:hover h3{color:var(--accent-blue)}.faq-item p{color:var(--muted);line-height:1.7;margin:0;padding:0}.back-link-bottom{text-align:center;margin:0 auto;padding:2.5rem 1.5rem;border-top:1px solid var(--border);max-width:900px}.back-link-bottom .back-link{color:var(--muted);font-size:.95rem;font-weight:500}.back-link-bottom .back-link:hover{color:var(--accent-blue)}.error-message{background:#fef2f2;border:1px solid #dc2626;color:#991b1b;padding:1rem;border-radius:var(--radius);text-align:center}@media(max-width:768px){.cluster-section{overflow:hidden}.cluster-grid{grid-template-columns:1fr}.cluster-card{word-wrap:break-word;overflow-wrap:break-word}.cluster-title,.cluster-description{word-break:break-word}.pillar-card{padding:2rem 1.5rem}.pillar-card h2{font-size:1.3rem;word-break:break-word}.pillar-meta{gap:1.5rem}}