:root{--kraken-purple:#5741D9;--kraken-dark-purple:#3B2BA3;--kraken-light-purple:#7B68EE;--kraken-cyan:#00BBFF;--bg-black:#050505;--bg-surface:#0A0A0A;--card-bg:#111111;--card-bg-hover:#161616;--text-pure:#FFFFFF;--text-muted:#A0AEC0;--text-dim:#6B7280;--border-dim:#222222;--border-hover:rgba(87,65,217,0.4);--header-h:72px;--container-w:1200px;--radius-sm:4px;--radius-md:8px;--radius-lg:12px;--radius-xl:20px;--transition:all 0.25s cubic-bezier(0.4,0,0.2,1);--shadow-sm:0 1px 3px rgba(0,0,0,0.3);--shadow-md:0 4px 12px rgba(0,0,0,0.4);--shadow-lg:0 20px 40px rgba(0,0,0,0.5);--shadow-glow:0 0 20px rgba(87,65,217,0.3)}

*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}html{scroll-behavior:smooth;overflow-x:hidden}body{font-family:'Inter',system-ui,-apple-system,sans-serif;background-color:var(--bg-black);color:var(--text-pure);line-height:1.65;font-size:16px;-webkit-font-smoothing:antialiased;overflow-x:hidden}a{text-decoration:none;color:inherit;transition:var(--transition)}img{max-width:100%;height:auto;display:block}.container{max-width:var(--container-w);margin:0 auto;padding:0 24px}

/* Header */
.header{height:var(--header-h);background:rgba(5,5,5,0.88);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border-bottom:1px solid var(--border-dim);position:fixed;top:0;left:0;right:0;z-index:1000;display:flex;align-items:center}.header .container{display:flex;justify-content:space-between;align-items:center;width:100%}.logo{display:flex;align-items:center;gap:10px;font-weight:800;font-size:1.5rem;color:var(--text-pure);letter-spacing:-1px}.logo-symbol{width:32px;height:32px;background:var(--kraken-purple);clip-path:polygon(50% 0%,100% 25%,100% 75%,50% 100%,0% 75%,0% 25%)}

/* Nav */
.nav{display:flex;align-items:center;gap:28px}.nav-link{color:var(--text-muted);font-size:0.9rem;font-weight:500;transition:var(--transition);padding:8px 0}.nav-link:hover{color:var(--kraken-cyan)}.btn-login{background:var(--kraken-purple);color:white;padding:10px 22px;border-radius:var(--radius-sm);font-weight:600;font-size:0.9rem;transition:var(--transition);display:inline-flex;align-items:center;justify-content:center;border:none;cursor:pointer}.btn-login:hover{background:var(--kraken-dark-purple);box-shadow:var(--shadow-glow)}

/* Mobile menu */
.mobile-menu-btn{display:none;align-items:center;justify-content:center;background:none;border:none;cursor:pointer;padding:8px;width:40px;height:40px}.hamburger{position:relative;width:24px;height:2px;background:var(--text-pure);transition:var(--transition)}.hamburger::before,.hamburger::after{content:'';position:absolute;left:0;width:24px;height:2px;background:var(--text-pure);transition:var(--transition)}.hamburger::before{top:-7px}.hamburger::after{top:7px}.mobile-nav{display:none;position:fixed;top:var(--header-h);left:0;right:0;bottom:0;background:rgba(5,5,5,0.95);backdrop-filter:blur(12px);z-index:999;padding:24px;overflow-y:auto}.mobile-nav.active{display:block}.mobile-nav-links{display:flex;flex-direction:column;gap:8px}.mobile-nav-link{font-size:1.125rem;font-weight:500;color:var(--text-muted);padding:16px 0;border-bottom:1px solid var(--border-dim)}.mobile-nav-link:hover{color:var(--kraken-cyan)}.mobile-nav-cta{margin-top:24px;width:100%;text-align:center;padding:14px 28px}

/* Hero */
.hero{padding:160px 0 100px;background:radial-gradient(circle at 50% -20%,#1A1245 0%,#050505 60%);text-align:center;margin-top:var(--header-h)}.hero h1{font-size:clamp(2.5rem,6vw,4rem);font-weight:900;letter-spacing:-2px;line-height:1.1;margin-bottom:24px;background:linear-gradient(to bottom,#FFFFFF 0%,#A0AEC0 100%);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.hero p{font-size:1.25rem;color:var(--text-muted);max-width:700px;margin:0 auto 40px;line-height:1.7}.hero-actions{display:flex;justify-content:center;gap:20px;flex-wrap:wrap}.hero-actions .btn-login{padding:14px 34px;font-size:1.1rem}.hero-actions .nav-link{display:flex;align-items:center;font-size:1rem;border-bottom:1px solid var(--kraken-purple);padding-bottom:2px}

/* Sections */
.section{padding:100px 0;position:relative;overflow:hidden}.section--dark{background:var(--bg-surface)}.section--purple{background:linear-gradient(135deg,var(--kraken-purple) 0%,#1A1245 100%)}.section__header{text-align:center;max-width:800px;margin:0 auto 60px}.section__header h2{font-size:2.5rem;font-weight:800;letter-spacing:-1px;margin-bottom:20px}.section__header p{font-size:1.1rem;color:var(--text-muted);line-height:1.8}

/* Typography */
h2{font-size:2.5rem;font-weight:800;margin-bottom:30px;letter-spacing:-1px}h3{font-size:1.6rem;font-weight:700;margin-bottom:20px;color:var(--kraken-cyan)}.expert-text{font-size:1.1rem;color:var(--text-muted);line-height:1.8}.expert-text strong{color:white}.expert-text a{color:var(--kraken-cyan);text-decoration:underline;text-underline-offset:3px}.expert-text a:hover{color:var(--kraken-light-purple)}

/* Content blocks */
.content-block{margin:80px 0}

/* AI Summary / Chunk */
.ai-chunk{background:rgba(87,65,217,0.08);border-left:4px solid var(--kraken-purple);padding:24px 28px;border-radius:0 var(--radius-md) var(--radius-md) 0;margin:32px 0}.ai-chunk h3{color:var(--kraken-light-purple);font-size:1.125rem;margin-bottom:12px}.ai-chunk ul{list-style:disc;padding-left:20px;color:var(--text-muted)}.ai-chunk li{margin-bottom:8px}

/* Cards */
.card{background:var(--card-bg);border:1px solid var(--border-dim);padding:40px;border-radius:var(--radius-md);transition:var(--transition)}.card:hover{border-color:var(--border-hover);background:var(--card-bg-hover)}.card h3{font-size:1.25rem;margin-bottom:12px}.card p{color:var(--text-muted);line-height:1.7}

/* Grids */
.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:32px;align-items:start}.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}

/* Stats */
.stats-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:32px}.stat-card{text-align:center;padding:32px}.stat-card .number{display:block;font-size:3rem;font-weight:800;color:var(--kraken-purple);margin-bottom:8px}.stat-card .label{font-size:0.95rem;color:var(--text-muted)}

/* Comparison / Data tables */
.comparison-table{width:100%;border-collapse:collapse;border-radius:var(--radius-md);overflow:hidden;box-shadow:var(--shadow-sm)}.comparison-table th{background:var(--kraken-purple);color:white;padding:16px 20px;font-weight:600;text-align:left;font-size:0.9rem}.comparison-table td{padding:14px 20px;border-bottom:1px solid var(--border-dim);color:var(--text-muted);font-size:0.95rem}.comparison-table tr:nth-child(even){background:rgba(255,255,255,0.02)}.comparison-table tr:hover{background:rgba(87,65,217,0.06)}

/* FAQ Accordion */
.faq-grid{margin:80px 0}.faq-grid h2{text-align:center;margin-bottom:40px}details.faq-item{background:var(--card-bg);border:1px solid var(--border-dim);border-radius:var(--radius-md);margin-bottom:12px;overflow:hidden;transition:var(--transition)}details.faq-item:hover{border-color:var(--border-hover)}details.faq-item summary{padding:24px 28px;font-weight:700;font-size:1.05rem;cursor:pointer;list-style:none;display:flex;justify-content:space-between;align-items:center;color:var(--text-pure);transition:var(--transition)}details.faq-item summary::-webkit-details-marker{display:none}details.faq-item summary::after{content:'+';color:var(--kraken-purple);font-size:1.5rem;font-weight:400;transition:transform 0.3s ease;flex-shrink:0;margin-left:16px}details.faq-item[open] summary::after{content:'\2212'}details.faq-item[open] summary{background:rgba(87,65,217,0.08);color:var(--kraken-light-purple);border-bottom:1px solid var(--border-dim)}details.faq-item p,details.faq-item .faq-body{padding:24px 28px;line-height:1.7;color:var(--text-muted);font-size:1rem}details.faq-item a{color:var(--kraken-cyan)}

/* Dark section */
.dark-section{background:var(--bg-surface);padding:60px;border-radius:var(--radius-lg);border-left:4px solid var(--kraken-purple);margin:60px 0}

/* Breadcrumb */
.breadcrumb{padding:16px 0;font-size:0.875rem;color:var(--text-dim);margin-top:var(--header-h)}.breadcrumb a{color:var(--kraken-purple);font-weight:500}.breadcrumb a:hover{color:var(--kraken-cyan)}.breadcrumb .sep{margin:0 8px;opacity:0.5}

/* CTA Section */
.cta-section{margin-top:100px;padding:80px;background:linear-gradient(135deg,var(--kraken-purple) 0%,#1A1245 100%);border-radius:var(--radius-xl);text-align:center}.cta-section h2{color:white;font-size:3rem;margin-bottom:20px}.cta-section p{color:rgba(255,255,255,0.8);font-size:1.2rem;margin-bottom:40px}.cta-section .btn-login{background:white;color:var(--kraken-purple);padding:18px 48px;font-size:1.2rem;border-radius:50px}.cta-section .btn-login:hover{box-shadow:0 0 30px rgba(255,255,255,0.3);transform:translateY(-2px)}

/* HowTo steps */
.howto-steps{counter-reset:step}.howto-step{display:flex;gap:24px;margin-bottom:32px;align-items:flex-start}.howto-step::before{counter-increment:step;content:counter(step);display:flex;align-items:center;justify-content:center;min-width:48px;height:48px;border-radius:50%;background:var(--kraken-purple);color:white;font-weight:700;font-size:1.25rem;flex-shrink:0}.howto-step-content h3{font-size:1.125rem;margin-bottom:8px}.howto-step-content p{color:var(--text-muted);line-height:1.6}

/* Related services */
.related-services{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:16px;margin-top:40px}.related-link{display:block;padding:20px;background:var(--card-bg);border:1px solid var(--border-dim);border-radius:var(--radius-md);font-weight:600;color:var(--text-pure);transition:var(--transition)}.related-link:hover{border-color:var(--kraken-purple);color:var(--kraken-cyan);transform:translateY(-2px);box-shadow:var(--shadow-glow)}

/* Footer */
.footer{background:#000;padding:80px 0 40px;border-top:1px solid var(--border-dim)}.footer-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:40px;margin-bottom:60px}.footer-col h4{color:white;margin-bottom:24px;font-size:0.85rem;text-transform:uppercase;letter-spacing:1.5px}.footer-col ul{list-style:none}.footer-col li{margin-bottom:12px}.footer-col a{color:var(--text-dim);font-size:0.9rem;transition:var(--transition)}.footer-col a:hover{color:var(--kraken-purple)}.footer-bottom{display:flex;justify-content:space-between;align-items:center;padding-top:30px;border-top:1px solid var(--border-dim);font-size:0.85rem;color:var(--text-dim);flex-wrap:wrap;gap:16px}.footer-bottom-links{display:flex;gap:20px}.footer-bottom-links a{color:var(--text-dim);transition:var(--transition)}.footer-bottom-links a:hover{color:var(--text-muted)}

/* Utility */
.mt-40{margin-top:40px}.mb-40{margin-bottom:40px}.text-center{text-align:center}.text-muted{color:var(--text-muted)}

/* Responsive */
@media(max-width:1024px){.grid-4{grid-template-columns:repeat(2,1fr)}.grid-3{grid-template-columns:repeat(2,1fr)}.footer-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:768px){.mobile-menu-btn{display:flex}.nav{display:none !important}.hero{padding:120px 0 60px}.hero h1{font-size:2.5rem}.grid-2,.grid-3,.grid-4{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr}.footer-bottom{flex-direction:column;text-align:center}.dark-section{padding:32px}.cta-section{padding:40px;margin-top:60px}.cta-section h2{font-size:2rem}.card{padding:28px}.content-block{margin:40px 0}.section{padding:60px 0}.section__header{margin-bottom:40px}}

/* Lighthouse: content-visibility */
.section:not(:first-of-type){content-visibility:auto;contain-intrinsic-size:auto 600px}.faq-grid{content-visibility:auto;contain-intrinsic-size:auto 800px}.footer{content-visibility:auto;contain-intrinsic-size:auto 300px}
/* Lighthouse: reduced motion */
@media(prefers-reduced-motion:reduce){*,*::before,*::after{animation-duration:.01ms!important;transition-duration:.01ms!important;scroll-behavior:auto!important}}
/* Lighthouse: focus-visible */
a:focus-visible,button:focus-visible,.btn-login:focus-visible{outline:3px solid var(--kraken-purple);outline-offset:2px;border-radius:4px}summary:focus-visible{outline:3px solid var(--kraken-purple);outline-offset:2px}
/* Print */
@media print{.header,.footer,.mobile-nav,.cta-section,.btn-login{display:none!important}.hero{padding:20px 0;min-height:auto}.section,.content-block{padding:20px 0;break-inside:avoid}}