/* Harmonic London — service-cluster.css
   Shared stylesheet. Page-specific colour variables are set in a small
   :root block on each page. */

        *{margin:0;padding:0;box-sizing:border-box}
        
        body{font-family:'DM Sans',system-ui,sans-serif;color:var(--text);line-height:1.7;background:var(--bg)}
        .container{max-width:1200px;margin:0 auto;padding:0 40px}
        .breadcrumb{background:var(--primary);padding:14px 0}
        .bc-inner{display:flex;align-items:center;gap:8px;font-family:'JetBrains Mono',monospace;font-size:.75rem;color:rgba(255,255,255,.4)}
        .bc-inner a{color:rgba(255,255,255,.4);text-decoration:none;transition:color .2s}
        .bc-inner a:hover{color:rgba(255,255,255,.8)}
        .bc-sep{color:rgba(255,255,255,.18)}
        .bc-current{color:var(--pillar);opacity:.9}
        .hero{background:var(--primary);padding:100px 0 120px;position:relative;overflow:hidden}
        .hero::before{content:'';position:absolute;inset:0;background-image:repeating-linear-gradient(-55deg,transparent,transparent 80px,rgba(255,255,255,.015) 80px,rgba(255,255,255,.015) 81px);pointer-events:none}
        .hero::after{content:'';position:absolute;top:-40%;right:-15%;width:800px;height:200%;background:linear-gradient(135deg,transparent 0%,transparent 48%,var(--pillar) 48%,var(--pillar) 52%,transparent 52%);opacity:.07;pointer-events:none;transform:rotate(-12deg)}
        .hero-orb{position:absolute;top:15%;right:8%;width:320px;height:320px;background:radial-gradient(circle,rgba(212,175,55,.15) 0%,transparent 70%);border-radius:50%;pointer-events:none;animation:pulse-slow 8s ease-in-out infinite}
        @keyframes pulse-slow{0%,100%{transform:scale(1);opacity:1}50%{transform:scale(1.08);opacity:.7}}
        .hero .container{position:relative;z-index:1;max-width:880px}
        .hero-eyebrow{display:inline-flex;align-items:center;gap:12px;margin-bottom:32px;font-family:'JetBrains Mono',monospace;font-size:.6875rem;font-weight:500;color:var(--accent);letter-spacing:.14em;text-transform:uppercase}
        .hero-eyebrow::before{content:'';width:32px;height:1px;background:var(--accent);opacity:.5}
        .hero-title{font-family:'Playfair Display',serif;font-size:clamp(2.5rem,5vw,4.25rem);font-weight:600;line-height:1.05;letter-spacing:-.035em;color:white;margin-bottom:28px}
        .hero-title em{font-style:italic;color:var(--pillar)}
        .hero-subtitle{font-size:1.1875rem;font-weight:300;color:rgba(255,255,255,.6);line-height:1.75;max-width:620px;margin-bottom:44px}
        .hero-cta{display:inline-flex;align-items:center;gap:12px;background:var(--accent);color:var(--primary);padding:18px 36px;font-size:.9375rem;font-weight:700;text-decoration:none;border:none;position:relative;overflow:hidden;transition:all .3s ease}
        .hero-cta::before{content:'';position:absolute;top:0;left:-100%;width:100%;height:100%;background:linear-gradient(90deg,transparent,rgba(255,255,255,.2),transparent);transition:left .5s ease}
        .hero-cta:hover::before{left:100%}
        .hero-cta:hover{transform:translateY(-3px);box-shadow:0 16px 40px rgba(212,175,55,.35)}
        .tension-strip{background:var(--primary-deep);border-bottom:1px solid rgba(255,255,255,.04);position:relative;overflow:hidden}
        .tension-strip::before{content:'';position:absolute;left:0;top:0;bottom:0;width:3px;background:linear-gradient(180deg,var(--accent) 0%,var(--pillar) 100%)}
        .tension-inner{display:grid;grid-template-columns:repeat(3,1fr)}
        .tension-block{padding:52px 48px;border-right:1px solid rgba(255,255,255,.04);transition:background .35s}
        .tension-block:last-child{border-right:none}
        .tension-block:hover{background:rgba(255,255,255,.02)}
        .tension-stat{font-family:'Playfair Display',serif;font-size:4.5rem;font-weight:700;line-height:.9;color:white;display:block;margin-bottom:14px;letter-spacing:-.03em}
        .tension-stat em{color:var(--accent);font-style:normal}
        .tension-label{font-size:.9375rem;color:rgba(255,255,255,.4);line-height:1.6}
        .tension-label strong{color:rgba(255,255,255,.7);font-weight:600}
        .section-label{font-size:.6875rem;font-weight:700;text-transform:uppercase;letter-spacing:.12em;color:var(--pillar);margin-bottom:16px;display:flex;align-items:center;gap:10px}
        .section-label::after{content:'';flex:1;height:1px;background:var(--pillar-mid);max-width:48px}
        .reality-section{padding:112px 0;background:var(--bg)}
        .reality-grid{display:grid;grid-template-columns:1fr 420px;gap:96px;align-items:start}
        .reality-content h2{font-family:'Playfair Display',serif;font-size:clamp(2rem,3vw,2.75rem);font-weight:600;color:var(--primary);line-height:1.15;letter-spacing:-.025em;margin-bottom:32px}
        .reality-content h2 em{font-style:italic;color:var(--pillar)}
        .reality-content p{font-size:1.0625rem;color:var(--text-light);line-height:1.85;margin-bottom:20px}
        .reality-content p:first-of-type{color:var(--text);font-size:1.125rem}
        .reality-content strong{color:var(--text);font-weight:600}
        .diagnostic-panel{background:var(--primary)}
        .diagnostic-header{padding:28px 32px;border-bottom:1px solid rgba(255,255,255,.06);display:flex;align-items:center;gap:14px}
        .diagnostic-icon{width:36px;height:36px;background:rgba(212,175,55,.12);border:1px solid rgba(212,175,55,.25);display:flex;align-items:center;justify-content:center}
        .diagnostic-icon svg{width:18px;height:18px;color:var(--accent)}
        .diagnostic-title{font-family:'JetBrains Mono',monospace;font-size:.6875rem;font-weight:700;text-transform:uppercase;letter-spacing:.12em;color:var(--accent)}
        .diagnostic-item{padding:22px 32px;border-bottom:1px solid rgba(255,255,255,.04);display:grid;grid-template-columns:24px 1fr;gap:16px;align-items:start;transition:background .2s}
        .diagnostic-item:last-child{border-bottom:none}
        .diagnostic-item:hover{background:rgba(255,255,255,.02)}
        .diagnostic-num{font-family:'Playfair Display',serif;font-size:.875rem;font-weight:700;color:var(--pillar);opacity:.6}
        .diagnostic-text{font-size:.9375rem;color:rgba(255,255,255,.65);line-height:1.65}
        .method-section{padding:112px 0;background:var(--gray-light);position:relative;overflow:hidden}
        .method-section::before{content:'';position:absolute;top:0;right:0;width:400px;height:400px;background:radial-gradient(circle at top right,var(--pillar-bg) 0%,transparent 70%);pointer-events:none}
        .method-section .container{position:relative;z-index:1}
        .method-intro{max-width:680px;margin-bottom:72px}
        .method-intro h2{font-family:'Playfair Display',serif;font-size:clamp(2rem,3vw,2.75rem);font-weight:600;color:var(--primary);line-height:1.15;letter-spacing:-.025em;margin-bottom:20px}
        .method-intro h2 em{font-style:italic;color:var(--pillar)}
        .method-intro p{font-size:1.0625rem;color:var(--text-light);line-height:1.85}
        .method-grid{display:grid;grid-template-columns:repeat(3,1fr)}
        .method-card{background:white;padding:44px 36px;border:1px solid var(--border);border-right:none;position:relative;transition:all .35s ease}
        .method-card:last-child{border-right:1px solid var(--border)}
        .method-card::before{content:'';position:absolute;bottom:0;left:0;right:0;height:3px;background:var(--pillar);transform:scaleX(0);transform-origin:left;transition:transform .35s ease}
        .method-card:hover{transform:translateY(-6px);box-shadow:0 24px 48px rgba(10,14,39,.1);z-index:2}
        .method-card:hover::before{transform:scaleX(1)}
        .method-num{font-family:'Playfair Display',serif;font-size:5rem;font-weight:700;color:var(--primary);opacity:.06;line-height:.8;margin-bottom:20px;letter-spacing:-.04em}
        .method-card h3{font-family:'Playfair Display',serif;font-size:1.25rem;font-weight:600;color:var(--primary);margin-bottom:14px;line-height:1.3}
        .method-card p{font-size:.9375rem;color:var(--text-light);line-height:1.75}
        .difference-section{padding:112px 0;background:var(--primary);position:relative;overflow:hidden}
        .difference-section::before{content:'';position:absolute;bottom:-20%;left:-10%;width:600px;height:600px;background:radial-gradient(circle,rgba(212,175,55,.08) 0%,transparent 60%);border-radius:50%;pointer-events:none}
        .difference-section .container{position:relative;z-index:1}
        .difference-header{display:grid;grid-template-columns:1fr 1fr;gap:80px;align-items:end;margin-bottom:72px}
        .difference-header h2{font-family:'Playfair Display',serif;font-size:clamp(2rem,3vw,2.75rem);font-weight:600;color:white;line-height:1.15;letter-spacing:-.025em}
        .difference-header h2 em{font-style:italic;color:var(--accent)}
        .difference-header p{font-size:1.0625rem;color:rgba(255,255,255,.5);line-height:1.85}
        .difference-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:2px;background:rgba(255,255,255,.06)}
        .difference-card{background:rgba(255,255,255,.02);padding:44px 40px;position:relative;transition:all .3s ease;display:grid;grid-template-columns:56px 1fr;gap:24px;align-items:start}
        .difference-card:hover{background:rgba(255,255,255,.05)}
        .difference-card::before{content:'';position:absolute;top:0;left:0;width:3px;height:100%;background:var(--accent);transform:scaleY(0);transform-origin:top;transition:transform .3s ease}
        .difference-card:hover::before{transform:scaleY(1)}
        .difference-icon{width:56px;height:56px;background:rgba(212,175,55,.1);border:1px solid rgba(212,175,55,.2);display:flex;align-items:center;justify-content:center;flex-shrink:0}
        .difference-icon svg{width:24px;height:24px;color:var(--accent)}
        .difference-card h3{font-family:'Playfair Display',serif;font-size:1.125rem;font-weight:600;color:white;margin-bottom:10px;line-height:1.35}
        .difference-card p{font-size:.9375rem;color:rgba(255,255,255,.5);line-height:1.75}
        .deliverables-section{padding:112px 0;background:var(--bg)}
        .deliverables-header{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:end;margin-bottom:64px}
        .deliverables-header h2{font-family:'Playfair Display',serif;font-size:clamp(2rem,3vw,2.75rem);font-weight:600;color:var(--primary);line-height:1.15;letter-spacing:-.025em}
        .deliverables-header h2 em{font-style:italic;color:var(--pillar)}
        .deliverables-header p{font-size:1.0625rem;color:var(--text-light);line-height:1.85}
        .deliverables-grid{display:grid;grid-template-columns:repeat(2,1fr)}
        .deliverable-item{padding:32px 36px;border:1px solid var(--border);margin-top:-1px;margin-left:-1px;display:grid;grid-template-columns:40px 1fr;gap:20px;align-items:start;transition:all .25s ease;background:white;position:relative}
        .deliverable-item:hover{background:var(--pillar-bg);border-color:var(--pillar-mid);z-index:1}
        .deliverable-check{width:40px;height:40px;background:var(--pillar-bg);border:1px solid var(--pillar-mid);display:flex;align-items:center;justify-content:center;flex-shrink:0;transition:all .25s}
        .deliverable-item:hover .deliverable-check{background:var(--pillar);border-color:var(--pillar)}
        .deliverable-check svg{width:18px;height:18px;color:var(--pillar);transition:color .25s}
        .deliverable-item:hover .deliverable-check svg{color:white}
        .deliverable-item h4{font-size:1rem;font-weight:600;color:var(--primary);margin-bottom:6px;line-height:1.4}
        .deliverable-item p{font-size:.875rem;color:var(--text-light);line-height:1.7}
        .process-section{padding:112px 0;background:var(--gray-light);overflow:hidden}
        .process-intro{max-width:640px;margin-bottom:72px}
        .process-intro h2{font-family:'Playfair Display',serif;font-size:clamp(2rem,3vw,2.75rem);font-weight:600;color:var(--primary);line-height:1.15;letter-spacing:-.025em;margin-bottom:20px}
        .process-intro h2 em{font-style:italic;color:var(--pillar)}
        .process-intro p{font-size:1.0625rem;color:var(--text-light);line-height:1.85}
        .process-track{display:grid;grid-template-columns:repeat(4,1fr);gap:0;position:relative}
        .process-track::before{content:'';position:absolute;top:28px;left:60px;right:60px;height:2px;background:linear-gradient(90deg,var(--pillar) 0%,var(--border) 100%)}
        .process-phase{padding:0 20px;position:relative}
        .phase-marker{width:56px;height:56px;background:white;border:2px solid var(--border);display:flex;align-items:center;justify-content:center;margin-bottom:28px;position:relative;z-index:1;transition:all .3s ease}
        .process-phase:first-child .phase-marker{background:var(--pillar);border-color:var(--pillar)}
        .phase-marker span{font-family:'Playfair Display',serif;font-size:1.25rem;font-weight:700;color:var(--text-light)}
        .process-phase:first-child .phase-marker span{color:white}
        .process-phase:hover .phase-marker{border-color:var(--pillar);transform:scale(1.08)}
        .phase-timing{font-family:'JetBrains Mono',monospace;font-size:.625rem;font-weight:700;text-transform:uppercase;letter-spacing:.1em;color:var(--pillar);margin-bottom:10px;display:block}
        .process-phase h4{font-family:'Playfair Display',serif;font-size:1.0625rem;font-weight:600;color:var(--primary);margin-bottom:12px;line-height:1.35}
        .process-phase p{font-size:.875rem;color:var(--text-light);line-height:1.7;margin-bottom:18px}
        .phase-outputs{display:flex;flex-wrap:wrap;gap:6px}
        .phase-tag{font-size:.6875rem;font-weight:600;color:var(--pillar);background:white;border:1px solid var(--pillar-mid);padding:5px 10px}
        .faq-section{padding:112px 0;background:var(--bg)}
        .faq-layout{display:grid;grid-template-columns:320px 1fr;gap:80px;align-items:start}
        .faq-header h2{font-family:'Playfair Display',serif;font-size:clamp(1.75rem,2.5vw,2.25rem);font-weight:600;color:var(--primary);line-height:1.2;letter-spacing:-.02em;margin-bottom:20px}
        .faq-header p{font-size:.9375rem;color:var(--text-light);line-height:1.75}
        .faq-list{display:flex;flex-direction:column;gap:2px}
        .faq-item{background:white;border:1px solid var(--border);transition:all .25s ease;position:relative}
        .faq-item::before{content:'';position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--pillar);transform:scaleY(0);transform-origin:top;transition:transform .25s ease}
        .faq-item:hover::before,.faq-item.open::before{transform:scaleY(1)}
        .faq-item:hover{border-color:var(--pillar-mid)}
        .faq-q{padding:24px 28px;font-size:1rem;font-weight:600;color:var(--primary);cursor:pointer;display:flex;align-items:flex-start;justify-content:space-between;gap:20px;user-select:none}
        .faq-q-text{line-height:1.45}
        .faq-toggle{flex-shrink:0;width:28px;height:28px;background:var(--gray-light);display:flex;align-items:center;justify-content:center;font-size:1.125rem;color:var(--text-light);transition:all .25s}
        .faq-item.open .faq-toggle{background:var(--pillar);color:white;transform:rotate(45deg)}
        .faq-a{display:none;padding:0 28px 28px;color:var(--text-light);font-size:.9375rem;line-height:1.85}
        .faq-item.open .faq-a{display:block}
        .faq-a p{margin-bottom:14px}
        .faq-a p:last-child{margin-bottom:0}
        .faq-a a{color:var(--pillar);font-weight:500}
        .cta-band{background:var(--pillar);padding:96px 0;text-align:center;position:relative;overflow:hidden}
        .cta-band::before{content:'';position:absolute;top:-50%;left:50%;transform:translateX(-50%);width:800px;height:800px;background:radial-gradient(circle,rgba(255,255,255,.1) 0%,transparent 50%);border-radius:50%;pointer-events:none}
        .cta-band .container{position:relative;z-index:1}
        .cta-band h2{font-family:'Playfair Display',serif;font-size:clamp(2rem,4vw,3rem);font-weight:600;color:white;margin-bottom:16px;letter-spacing:-.02em;line-height:1.15}
        .cta-band p{font-size:1.125rem;color:rgba(255,255,255,.75);max-width:520px;margin:0 auto 40px;line-height:1.7}
        .cta-band-btns{display:flex;gap:16px;justify-content:center;flex-wrap:wrap}
        .cta-btn-white{display:inline-flex;align-items:center;gap:10px;background:white;color:var(--pillar);padding:18px 36px;font-size:.9375rem;font-weight:700;text-decoration:none;transition:all .3s ease}
        .cta-btn-white:hover{background:var(--accent);color:var(--primary);transform:translateY(-3px);box-shadow:0 12px 32px rgba(0,0,0,.2)}
        .cta-btn-outline{display:inline-flex;align-items:center;gap:10px;background:transparent;color:white;padding:18px 36px;font-size:.9375rem;font-weight:600;text-decoration:none;border:2px solid rgba(255,255,255,.3);transition:all .3s ease}
        .cta-btn-outline:hover{border-color:rgba(255,255,255,.8);background:rgba(255,255,255,.1)}
        .related-section{padding:96px 0;background:var(--bg);border-top:1px solid var(--border)}
        .related-inner{display:grid;grid-template-columns:1fr 380px;gap:80px;align-items:start;margin-top:48px}
        .related-col-label{font-family:'JetBrains Mono',monospace;font-size:.625rem;font-weight:700;text-transform:uppercase;letter-spacing:.12em;color:var(--text-light);margin-bottom:20px}
        .sibling-list{display:flex;flex-direction:column}
        .sibling-link{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:18px 0;border-bottom:1px solid var(--border);text-decoration:none;color:var(--text-light);font-size:.9375rem;transition:all .2s ease}
        .sibling-link:first-child{border-top:1px solid var(--border)}
        .sibling-link:hover{color:var(--primary);padding-left:12px}
        .sibling-link.current{color:var(--pillar);font-weight:600;padding-left:12px;border-left:2px solid var(--pillar);cursor:default}
        .sibling-arrow{color:var(--border);font-size:.875rem;transition:color .2s}
        .sibling-link:hover .sibling-arrow{color:var(--pillar)}
        .pillar-card{background:var(--primary);padding:44px 40px;display:flex;flex-direction:column;text-decoration:none;transition:background .25s;border-left:3px solid var(--accent)}
        .pillar-card:hover{background:#12183f}
        .pillar-card-eyebrow{font-family:'JetBrains Mono',monospace;font-size:.5625rem;font-weight:700;text-transform:uppercase;letter-spacing:.14em;color:var(--accent);margin-bottom:24px;opacity:.8}
        .pillar-card-title{font-family:'Playfair Display',serif;font-size:1.5rem;font-weight:700;color:white;line-height:1.25;margin-bottom:16px;letter-spacing:-.015em}
        .pillar-card-desc{font-size:.9375rem;color:rgba(255,255,255,.45);line-height:1.75;margin-bottom:32px}
        .pillar-card-cta{display:inline-flex;align-items:center;gap:10px;color:var(--accent);font-size:.875rem;font-weight:700;border-bottom:1px solid rgba(212,175,55,.3);padding-bottom:2px;transition:all .2s;align-self:flex-start}
        .pillar-card-cta:hover{border-bottom-color:var(--accent);gap:14px}
        a{color:var(--primary);text-decoration:none;font-weight:500;border-bottom:1px solid transparent;transition:border-color .2s}
        a:hover{border-bottom-color:var(--primary)}
        .reveal{opacity:0;transform:translateY(24px);transition:opacity .6s ease,transform .6s ease}
        .reveal.visible{opacity:1;transform:translateY(0)}
        .reveal-d1{transition-delay:.1s}
        .reveal-d2{transition-delay:.2s}
        .reveal-d3{transition-delay:.3s}
        @media(max-width:1024px){
            .tension-inner,.method-grid,.difference-grid,.deliverables-grid{grid-template-columns:1fr}
            .tension-block{border-right:none;border-bottom:1px solid rgba(255,255,255,.04)}
            .tension-block:last-child{border-bottom:none}
            .reality-grid,.deliverables-header,.difference-header{grid-template-columns:1fr;gap:48px}
            .method-card{border-right:1px solid var(--border);border-bottom:none}
            .method-card:last-child{border-bottom:1px solid var(--border)}
            .process-track{grid-template-columns:1fr;gap:40px}
            .process-track::before{display:none}
            .faq-layout,.related-inner{grid-template-columns:1fr;gap:40px}
        }
        @media(max-width:768px){
            .container{padding:0 24px}
            .hero{padding:72px 0 88px}
            .hero-orb,.bc-middle{display:none}
            .reality-section,.method-section,.difference-section,.deliverables-section,.process-section,.faq-section,.related-section{padding:72px 0}
            .cta-band{padding:72px 0}
        }