:root{--navy:#061326;--deep:#030c1b;--ink:#14243a;--teal:#41e2c9;--green:#a4f35d;--sky:#02c8f4;--grey:#586a7f;--line:#dce6ef}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;color:var(--ink);background:#fff;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;line-height:1.65}a{color:inherit;text-decoration:none}a:hover{color:#009a98}img{max-width:100%;display:block}.wrap{width:min(1190px,calc(100% - 52px));margin:0 auto}.skip{position:absolute;top:-80px;background:#fff;padding:10px;z-index:1000}.skip:focus{top:0}.site-header{background:#061326;position:sticky;top:0;z-index:50;border-bottom:1px solid #203a52;box-shadow:0 4px 25px #02091833}.header-row{height:79px;display:flex;align-items:center;justify-content:space-between;gap:32px}.header-logo{width:206px;max-height:70px;object-fit:contain}.main-nav{display:flex;gap:23px;align-items:center}.main-nav a{color:#d4e6f2;font-size:13px;font-weight:650;white-space:nowrap}.main-nav a:hover{color:var(--teal)}.menu-toggle{display:none;background:transparent;color:white;border:1px solid #536579;border-radius:7px;padding:6px 12px;font-size:22px}.hero,.page-hero,.brand-hero{color:white;background:radial-gradient(ellipse at 50% 0%,#173859 0%,#08192d 46%,#030b19 100%)}.hero{min-height:740px;position:relative;overflow:hidden}.hero:after{content:'';position:absolute;bottom:0;left:20%;right:20%;height:1px;background:linear-gradient(90deg,transparent,var(--teal),transparent)}.hero-inside{text-align:center;padding:70px 0 60px}.eyebrow{color:#11d8c6;letter-spacing:.19em;text-transform:uppercase;font-weight:800;font-size:11px;margin:0 0 22px}.hero-logo{width:min(750px,90%);margin:6px auto 25px;border-radius:8px;mix-blend-mode:screen}.hero h1{font-size:clamp(37px,5vw,69px);line-height:1.13;letter-spacing:-.045em;margin:0}.hero h1 em{font-style:normal;background:linear-gradient(90deg,#b9f660,#24e8cb,#20a9f4);-webkit-background-clip:text;background-clip:text;color:transparent}.lead{font-size:clamp(17px,2vw,21px);line-height:1.65;color:#b7cddd;max-width:780px}.hero .lead{margin:25px auto}.hero-actions{display:flex;gap:15px;flex-wrap:wrap;margin-top:31px}.hero .hero-actions{justify-content:center}.btn,.btn-outline{display:inline-flex;justify-content:center;align-items:center;gap:15px;border-radius:7px;padding:12px 23px;font-weight:750;font-size:14px;min-height:47px;cursor:pointer}.btn{background:linear-gradient(100deg,#b2f36b,#20e3cd);color:#042037!important;border:0}.btn:hover{filter:brightness(1.06);color:#042037!important}.btn-outline{border:1px solid #6b8b9b;color:#eff8fd}.btn-outline:hover{border-color:var(--teal);color:#fff}.hero-rule{display:flex;justify-content:center;gap:clamp(16px,4vw,55px);flex-wrap:wrap;margin-top:60px;color:#8da8be;font-size:11px;letter-spacing:.14em;font-weight:700}.section{padding:100px 0}.section.dark{color:#f2f9fc;background:#07172a}.section.white{background:#fff}.section-title{max-width:760px;margin-bottom:42px}.section-title h2,.cta h2,.callout h2{font-size:clamp(33px,4vw,51px);line-height:1.13;letter-spacing:-.04em;margin:0 0 23px}.section-title p:not(.eyebrow),.callout p:not(.eyebrow){font-size:17px;line-height:1.75;color:#738398}.dark .section-title p:not(.eyebrow),.dark .callout p:not(.eyebrow){color:#b0c7d9}.split,.callout{display:grid;grid-template-columns:1fr 1fr;gap:65px;align-items:center}.picture-frame{border-radius:13px;overflow:hidden;background:#102940;border:1px solid #26445a;box-shadow:0 24px 56px #0002}.picture-frame img{width:100%;height:auto;object-fit:cover}.text-link{font-weight:800;color:#068c9c}.dark .text-link{color:#58e5d3}.brand-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:19px}.brand-card{border:1px solid #2e4355;border-radius:12px;background:#0d2236;overflow:hidden;transition:transform .2s,border-color .2s;display:block}.brand-card:hover{transform:translateY(-4px);border-color:var(--accent);color:inherit}.brand-logo{height:156px;display:flex;align-items:center;justify-content:center;padding:21px;background:radial-gradient(circle at 50% 50%,#142d48,#051222)}.brand-logo img{width:100%;max-height:119px;object-fit:contain;mix-blend-mode:screen}.brand-info{padding:23px}.brand-info .status{display:inline-block;font-size:10px;font-weight:800;letter-spacing:.08em;text-transform:uppercase;color:var(--accent);padding:5px 9px;border:1px solid #ffffff30;border-radius:30px}.brand-info h3{font-size:22px;line-height:1.3;margin:14px 0 8px;color:#fff}.brand-info p{color:#adbfce;font-size:14px;margin:0 0 23px}.explore{color:var(--accent);font-size:13px;font-weight:800}.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}.tile{border:1px solid var(--line);border-radius:12px;padding:33px;background:#f7fafc}.dark .tile{background:#0b233a;border-color:#25445c}.tile-icon{display:flex;align-items:center;justify-content:center;width:47px;height:47px;background:#d6f9f4;border-radius:9px;color:#005f65;font-weight:900;font-size:23px}.tile h3{font-size:22px;line-height:1.3}.tile p{color:#607388}.dark .tile p{color:#acc0d0}.cta{text-align:center;max-width:720px}.cta .btn{margin-top:17px}.cta p:not(.eyebrow){color:#60748a}.page-hero,.brand-hero{padding:95px 0}.page-hero h1,.brand-hero h1{font-size:clamp(44px,6vw,76px);line-height:1.12;letter-spacing:-.052em;max-width:1000px;margin:0 0 22px}.brand-hero{background:radial-gradient(ellipse at 70% 10%,#132a47 0%,#051326 60%);border-bottom:3px solid var(--accent)}.brand-hero-logo{width:min(630px,100%);max-height:220px;object-fit:contain;object-position:left center;margin:0 0 42px;mix-blend-mode:screen}.brand-hero h1{font-size:clamp(36px,5vw,57px)}.brand-light{background:#f8fafc;border:1px solid #e4ebef;border-radius:12px;display:flex;justify-content:center;align-items:center;padding:25px}.brand-light img{width:100%;object-fit:contain}.note{background:#edf8f9;border-left:4px solid #1cb3a8;padding:18px;font-size:14px;margin:24px 0}.narrow{max-width:800px}.empty-news{background:#f0f6f9;border-radius:14px;padding:54px}.contact-grid{display:grid;grid-template-columns:1.4fr .8fr;gap:60px}.lead-form{display:grid;gap:19px;max-width:650px}.lead-form label{display:grid;font-size:14px;font-weight:750;gap:7px}.lead-form input:not([type=checkbox]),.lead-form select,.lead-form textarea{border:1px solid #b6c8d5;border-radius:7px;padding:12px 13px;font:inherit;width:100%;color:#182f41;background:#fff}.lead-form input:focus,.lead-form textarea:focus{outline:3px solid #54dbd84a;border-color:#00b6b7}.lead-form .checkbox-label{display:flex;gap:12px;align-items:flex-start;font-weight:400}.lead-form .checkbox-label input{margin-top:6px;min-width:17px;height:17px}.lead-form a,.legal a{color:#007a92;text-decoration:underline}.lead-form .btn{justify-self:start}.dark .lead-form label{color:#ecf7fc}.dark .lead-form .checkbox-label a{color:#8af3db}.contact-aside{border-radius:10px;background:#edf5f8;padding:34px;align-self:start}.contact-aside a{color:#007e94;font-weight:750}.muted{color:#92a8bc!important;font-size:13px}.contact-aside .muted{color:#62768a!important}.legal{max-width:850px}.legal h2{font-size:25px;margin-top:30px}.legal>p:first-child{background:#fff3dd;border-left:4px solid #ffa300;padding:17px}.small-note{color:#6b7c87;font-size:13px;margin-top:25px}details{border-bottom:1px solid #dbe7ed;padding:24px 5px}summary{font-weight:750;font-size:19px;cursor:pointer}details p{color:#617487}footer{background:#020b18;color:#dcebf2;padding:70px 0 25px}.footer-top{display:grid;grid-template-columns:2.2fr 1fr 1fr 1.2fr;gap:45px}.footer-logo{width:235px;mix-blend-mode:screen}.footer-top h3{font-size:14px;color:white}.footer-top a,.footer-top .link-btn{display:block;color:#b2c6d4;font-size:13px;margin:10px 0}.footer-top a:hover{color:#52e8cc}.link-btn{border:0;background:transparent;padding:0;cursor:pointer;text-align:left}.footer-top p{color:#aebfc9;font-size:14px}.footer-bottom{border-top:1px solid #254054;margin-top:50px;padding-top:24px;display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;font-size:12px;color:#8aa2b3}.cookie-banner{position:fixed;bottom:18px;left:18px;right:18px;max-width:940px;margin:auto;background:white;border:1px solid #c5d6e1;border-radius:14px;padding:20px;z-index:100;box-shadow:0 14px 70px #0005;display:flex;align-items:center;gap:30px}.cookie-banner[hidden]{display:none}.cookie-banner p{margin:4px 0 0;color:#526779;font-size:13px}.cookie-buttons{display:flex;gap:9px;flex-shrink:0}.cookie-buttons button:not(.btn){border:1px solid #b3c5cf;background:#f7fbfc;border-radius:7px;padding:11px;cursor:pointer;font-weight:700}@media(max-width:950px){.menu-toggle{display:block}.main-nav{display:none;position:absolute;top:79px;left:0;right:0;background:#081b30;padding:24px;flex-direction:column;align-items:flex-start;box-shadow:0 20px 30px #0006}.main-nav.open{display:flex}.brand-grid{grid-template-columns:repeat(2,1fr)}.footer-top{grid-template-columns:repeat(2,1fr)}.split,.callout{gap:30px}}@media(max-width:640px){.wrap{width:min(100% - 32px,1190px)}.header-row{height:70px}.header-logo{width:175px}.main-nav{top:70px}.hero{min-height:0}.hero-inside{padding:55px 0 45px}.hero-rule{margin-top:38px;gap:17px}.section{padding:65px 0}.split,.callout,.contact-grid,.cards,.brand-grid{grid-template-columns:1fr}.page-hero,.brand-hero{padding:65px 0}.brand-hero-logo{max-height:170px}.footer-top{grid-template-columns:1fr 1fr;gap:25px}.footer-top>div:first-child{grid-column:1/-1}.cookie-banner{flex-direction:column;align-items:stretch}.cookie-buttons{flex-wrap:wrap}.empty-news{padding:30px}.brand-logo{height:140px}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{transition:none!important;animation:none!important}}:focus-visible{outline:3px solid #1bd7d2;outline-offset:3px}

/* Keep supplied imagery in its original proportions unless cropped deliberately. */
.picture-frame img,.brand-light img,.brand-hero-logo,.hero-logo,.header-logo,.footer-logo,.brand-logo img{height:auto;object-fit:contain;max-width:100%;}
.picture-frame img{object-position:center;}
.legal .policy-effective{background:#e8f7f4;border-left:4px solid #21bfae;padding:14px 17px;}

/* v4 expanded product and publication pages */
.publication-books{display:grid;gap:23px}.book-feature{display:grid;grid-template-columns:minmax(160px,265px) 1fr;align-items:center;gap:35px;border:1px solid #dae7ec;border-radius:16px;background:#f8fafc;padding:23px}.book-feature img{width:100%;height:auto;max-height:360px;object-fit:contain;border-radius:8px}.book-feature h3{font-size:clamp(26px,3vw,36px);margin:8px 0;line-height:1.2}.book-feature p{margin:10px 0;color:#53677c}.publication-stage{display:inline-block;font-size:12px;font-weight:800;color:#087b78;background:#d8f6ed;padding:6px 12px;border-radius:40px}.book-placeholder{min-height:205px;display:flex;justify-content:center;align-items:center;text-align:center;background:linear-gradient(135deg,#0a213a,#086d81);border-radius:10px;color:#fff;font-size:27px;font-weight:900;letter-spacing:.04em;line-height:1.2}.author-panel{display:grid;grid-template-columns:180px 1fr;align-items:center;gap:40px;max-width:1050px}.author-initials{background:linear-gradient(145deg,#153c52,#082336);border:1px solid #4acfb7;border-radius:18px;display:flex;align-items:center;justify-content:center;width:175px;height:175px;color:#b6f76d;font-size:64px;font-weight:850}.author-panel p{font-size:17px;line-height:1.8;color:#d3e4ec}.author-panel .muted{color:#a5c5d0!important}@media(max-width:670px){.book-feature,.author-panel{grid-template-columns:1fr}.book-feature img{max-height:300px}.author-initials{width:125px;height:125px;font-size:46px}}

/* Voltbase corporate social network links — V5 */
.corporate-socials{border-top:1px solid #243b4e;margin-top:42px;padding-top:25px}
.socials-caption{color:#dcebf2;font-size:13px;font-weight:700;margin:0 0 13px}
.social-links{display:flex;flex-wrap:wrap;gap:12px;align-items:center}
.social-link{display:inline-flex!important;align-items:center;gap:8px;border:1px solid #355066;border-radius:9px;padding:9px 13px;min-height:43px;margin:0!important;color:#dcebf2!important;font-size:13px!important;font-weight:650;transition:background .2s,border-color .2s,transform .2s}
.social-link:hover{background:#13314a;color:#fff!important;border-color:#51dcc9;transform:translateY(-2px)}
.social-icon{width:22px;height:22px;display:inline-flex;align-items:center;justify-content:center;color:#8fe8df}
.social-icon img{width:21px;height:21px;object-fit:contain;filter:brightness(0) saturate(100%) invert(84%) sepia(18%) saturate(661%) hue-rotate(117deg) brightness(99%) contrast(93%)}
.social-contact-section{background:#f2f8fb}.social-links-contact .social-link{color:#173149!important;border-color:#b5cbd8;background:white}.social-links-contact .social-link:hover{background:#e2f6f2;border-color:#009b91;color:#073e43!important}
@media(max-width:640px){.social-links{gap:9px}.social-link{padding:9px 11px}.social-name{font-size:12px}}

/* V6: equal-sized icon-only social links, preserving accessible names. */
.social-link,.social-links-contact .social-link{width:46px!important;height:46px!important;min-width:46px;min-height:46px;padding:0!important;display:inline-flex!important;align-items:center;justify-content:center;flex:0 0 46px;box-sizing:border-box}
.social-icon{display:flex;align-items:center;justify-content:center;width:24px;height:24px}
.social-icon img{width:22px;height:22px;object-fit:contain}
/* V6: book jackets must never stretch to fill the content column. */
.book-feature img.book-cover{width:clamp(150px,17vw,225px);height:auto;aspect-ratio:auto;object-fit:contain;align-self:start;display:block;box-shadow:0 14px 30px #0003;border-radius:3px}
@media(max-width:640px){.book-feature img.book-cover{width:min(205px,100%);height:auto}}

/* Branded 404 / missing page */
.not-found{min-height:calc(100vh - 79px);display:flex;align-items:center;padding:95px 0 125px;background:radial-gradient(ellipse at 70% 5%,#153c52 0%,#091b30 43%,#030b19 90%)}
.not-found .wrap{width:min(920px,calc(100% - 52px))}
.error-number{font-size:clamp(110px,22vw,250px);font-weight:900;line-height:.87;letter-spacing:-.095em;color:#fff;margin:14px 0 30px;text-shadow:0 8px 40px #21d9c623}
.error-number span{color:#45e4c8}
.not-found h1{font-size:clamp(36px,5vw,64px);letter-spacing:-.047em;line-height:1.12;margin:0}
.not-found .lead{max-width:700px;color:#bdcfdd;margin:23px 0 0}
.error-help{border-top:1px solid #2a475c;margin-top:65px;padding-top:26px;max-width:680px}
.error-help h2{color:#f5fbff;font-size:19px;margin:0 0 6px}
.error-help p{color:#b9cddd;margin:0}
.error-help a{color:#66efdc;text-decoration:underline;text-underline-offset:3px}
@media(max-width:640px){.not-found{padding:70px 0 90px}.not-found .wrap{width:calc(100% - 32px)}.error-help{margin-top:50px}}

/* Corporate news content */
.news-list{display:grid;gap:22px;max-width:920px}.news-card{padding:30px;border:1px solid #dbe7ed;border-radius:14px;background:#f7fafc}.news-card h2{font-size:clamp(23px,2.6vw,31px);line-height:1.25;margin:4px 0 14px}.news-card h3{font-size:21px;line-height:1.3;margin:5px 0 20px}.news-card p:not(.eyebrow){color:#536b7e}.news-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;margin:25px 0}.news-card a:hover{text-decoration:underline}.article-body p{font-size:17px;line-height:1.8}.article-body .lead{color:#273c50;font-weight:600;font-size:20px}@media(max-width:760px){.news-grid{grid-template-columns:1fr}.news-card{padding:24px}}