*,*:before,*:after{margin:0;padding:0;box-sizing:border-box}:root{--layout-max: 1200px;--deep-blue: #051c2c;--blue: #0b4f8a;--blue-wash: #f4f8fc;--white: #ffffff;--off-white: #fafbfc;--gray-200: #e8eaed;--gray-500: #6b7280;--gray-600: #4b5563;--gray-700: #374151;--gray-900: #111827;--serif: "Playfair Display", Georgia, "Times New Roman", serif;--sans: "Source Sans 3", "Helvetica Neue", Helvetica, Arial, sans-serif;--mono: "IBM Plex Mono", monospace}body{font-family:var(--sans);background:var(--white);color:var(--gray-900);line-height:1.6;-webkit-font-smoothing:antialiased}nav{position:fixed;top:0;left:0;right:0;z-index:1000;padding:0 60px;height:68px;display:flex;align-items:center;justify-content:space-between;background:var(--white);border-bottom:1px solid var(--gray-200)}.nav-logo{font-family:var(--serif);font-size:1.35rem;font-weight:600;color:var(--deep-blue);text-decoration:none}.nav-logo img{display:block;height:44px;width:auto}.nav-links{display:flex;gap:36px;align-items:center}.nav-links a{font-size:.85rem;font-weight:500;color:var(--gray-600);text-decoration:none}.nav-links a:hover{color:var(--deep-blue)}.nav-cta{padding:9px 22px!important;background:var(--deep-blue)!important;color:var(--white)!important;border-radius:2px;font-weight:600!important}.mobile-toggle{display:none;background:none;border:none;color:var(--deep-blue);cursor:pointer;padding:6px;transition:color .2s}main{padding-top:68px}section{padding:90px 60px}.container{max-width:var(--layout-max);margin:0 auto}.section-rule{width:48px;height:3px;background:var(--deep-blue);margin-bottom:24px}.section-title{font-family:var(--serif);font-size:clamp(2rem,3vw,3rem);line-height:1.16;color:var(--deep-blue);margin-bottom:14px}.section-desc{font-size:1.06rem;color:var(--gray-600);max-width:960px;line-height:1.74}.hero{padding:124px 60px 84px;background:radial-gradient(1000px 360px at 12% -10%,rgba(11,79,138,.12),transparent 60%),linear-gradient(180deg,var(--blue-wash) 0%,var(--white) 76%)}.hero h1{font-family:var(--serif);font-size:clamp(2.4rem,4vw,4rem);line-height:1.12;color:var(--deep-blue);margin-bottom:16px}.hero p{font-size:1.14rem;line-height:1.74;color:var(--gray-600);max-width:1080px;text-wrap:pretty}.principles{background:var(--white)}.principles-grid{margin-top:24px;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}.principle-card{border:1px solid var(--gray-200);background:var(--white);border-top:3px solid var(--deep-blue);padding:22px 20px}.principle-id{font-family:var(--mono);font-size:.62rem;letter-spacing:.12em;text-transform:uppercase;color:var(--blue);margin-bottom:8px}.principle-card h3{font-family:var(--serif);font-size:1.28rem;line-height:1.2;color:var(--deep-blue);margin-bottom:10px}.principle-card p{color:var(--gray-700);font-size:.95rem;line-height:1.66}.engines{background:var(--off-white);border-top:1px solid var(--gray-200);border-bottom:1px solid var(--gray-200)}.engine-grid{margin-top:24px;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}.engine-card{border:1px solid var(--gray-200);background:var(--white);padding:24px 22px}.engine-card h3{font-family:var(--serif);font-size:1.45rem;line-height:1.2;color:var(--deep-blue);margin-bottom:10px}.engine-card p{color:var(--gray-700);font-size:.95rem;line-height:1.66;margin-bottom:10px}.engine-card p:last-child{margin-bottom:0}.different{background:var(--white)}.diff-grid{margin-top:24px;display:grid;grid-template-columns:1fr 1fr;gap:16px}.diff-card{border:1px solid var(--gray-200);background:var(--white);padding:22px 20px}.diff-card h3{font-family:var(--serif);font-size:1.28rem;line-height:1.2;color:var(--deep-blue);margin-bottom:10px}.diff-card p{color:var(--gray-700);font-size:.95rem;line-height:1.66}.metrics{background:var(--off-white);border-top:1px solid var(--gray-200);border-bottom:1px solid var(--gray-200)}.metrics-intro{margin-top:10px;margin-bottom:20px;color:var(--gray-600);font-size:1.04rem}.metrics-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}.metric-card{border:1px solid var(--gray-200);background:var(--white);padding:22px 20px}.metric-card h3{font-family:var(--serif);font-size:1.28rem;line-height:1.2;color:var(--deep-blue);margin-bottom:12px}.metric-list{list-style:none;display:grid;gap:8px}.metric-list li{color:var(--gray-700);font-size:.95rem;line-height:1.58;position:relative;padding-left:14px}.metric-list li:before{content:"";width:4px;height:4px;border-radius:50%;background:var(--blue);position:absolute;left:0;top:.68em}.cta{background:var(--deep-blue);padding:98px 60px;text-align:center}.cta h2{font-family:var(--serif);color:var(--white);font-size:clamp(2rem,3.1vw,3rem);line-height:1.2;font-weight:500;margin-bottom:14px}.cta p{color:#ffffffc2;font-size:1.04rem;line-height:1.75;max-width:900px;margin:0 auto 24px}.cta-actions{display:flex;justify-content:center;gap:14px;flex-wrap:wrap}.btn-primary-light,.btn-secondary-light{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:14px 26px;text-decoration:none;font-family:var(--sans);font-size:.92rem;font-weight:600}.btn-primary-light{background:var(--white);color:var(--deep-blue)}.btn-secondary-light{color:var(--white);border:1px solid rgba(255,255,255,.42)}.btn-primary-light:hover{background:#e8f0f8}.btn-secondary-light:hover{background:#ffffff14;border-color:var(--white)}footer{border-top:1px solid var(--gray-200);padding:56px 60px 36px;background:var(--white);max-width:var(--layout-max);margin:0 auto}.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:48px;margin-bottom:44px}.footer-brand-text{color:var(--gray-500);font-size:.88rem;line-height:1.7;margin-top:14px;max-width:300px}.footer-col h5{font-family:var(--mono);font-size:.62rem;letter-spacing:.14em;text-transform:uppercase;color:var(--gray-600);margin-bottom:18px}.footer-col a{display:block;font-size:.88rem;color:var(--gray-500);text-decoration:none;margin-bottom:9px}.footer-col a:hover{color:var(--deep-blue)}.footer-bottom{padding-top:20px;border-top:1px solid var(--gray-200);display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:12px}.footer-bottom p,.footer-bottom a{font-size:.75rem;color:var(--gray-500);text-decoration:none}.footer-meta{display:flex;gap:24px;align-items:center}@media(max-width:1080px){.principles-grid{grid-template-columns:1fr 1fr}.engine-grid,.metrics-grid{grid-template-columns:1fr}}@media(max-width:900px){nav{padding:0 28px}.mobile-toggle{display:block;z-index:1002}.nav-links{position:fixed;top:68px;left:0;right:0;display:flex;flex-direction:column;align-items:stretch;gap:0;background:var(--white);border-bottom:1px solid var(--gray-200);box-shadow:0 12px 28px #061a2b14;max-height:calc(100vh - 68px);overflow-y:auto;transform:translateY(-8px);opacity:0;visibility:hidden;pointer-events:none;transition:opacity .22s ease,transform .22s ease,visibility .22s ease}nav.nav-open .nav-links{opacity:1;visibility:visible;pointer-events:auto;transform:translateY(0)}.nav-links a{display:block;width:100%;padding:14px 28px;border-bottom:1px solid var(--gray-200)}.nav-links a:last-child{border-bottom:none}.nav-links .nav-cta{margin:12px 28px 16px;width:calc(100% - 56px);text-align:center;padding:12px 18px!important}section,.hero,.cta,footer{padding-left:28px;padding-right:28px}.diff-grid{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr 1fr}}@media(max-width:620px){.principles-grid,.footer-grid{grid-template-columns:1fr}.cta-actions{flex-direction:column;align-items:center}.btn-primary-light,.btn-secondary-light{width:100%;max-width:360px}}