/* A single, readable glass navigation across every language and page. */
html{scroll-padding-top:112px}body{padding-top:104px}.site-header{position:fixed;z-index:1000;top:16px;left:50%;transform:translateX(-50%);width:calc(100% - 48px);max-width:1320px;height:72px;margin:0;padding:0 24px;display:flex;align-items:center;justify-content:space-between;gap:20px;border:1px solid rgba(215,226,225,.7);border-radius:20px;background:rgba(255,255,255,.78);-webkit-backdrop-filter:blur(22px) saturate(140%);backdrop-filter:blur(22px) saturate(140%);box-shadow:0 8px 30px rgba(6,59,66,.055)}
.site-brand{display:flex;flex-shrink:0}.site-brand img{width:150px;height:auto;display:block}.site-header .site-nav{display:flex;gap:24px;align-items:center}.site-header .site-nav a{display:block!important;font-size:14px;white-space:nowrap;color:#063B42;text-decoration:none}.site-header a:hover{color:#278573}.site-actions{display:flex;align-items:center;gap:16px}.site-contact{font-size:14px;white-space:nowrap;font-weight:600}.site-contact span{margin-left:8px}.language-menu{position:relative}.site-header summary{list-style:none;cursor:pointer;font-size:13px;font-weight:600;padding:10px 8px;border-radius:8px}.site-header summary::-webkit-details-marker{display:none}.site-header summary:hover{background:rgba(6,59,66,.08)}.language-menu summary span{margin-left:5px}.language-options{position:absolute;right:0;top:calc(100% + 15px);min-width:150px;padding:8px;background:rgba(255,255,255,.98);border:1px solid #F5F7F5;border-radius:14px;box-shadow:0 12px 30px #063B4212}.language-options a{display:block;padding:9px 12px;font-size:14px;border-radius:8px;text-decoration:none}.language-options a[aria-current=page]{background:#F5F7F5;color:#278573}.mobile-menu{display:none}.site-header :focus-visible{outline:2px solid #278573;outline-offset:4px}.hero{padding-top:60px}.article-top nav{flex-wrap:wrap}html[lang=ru] .hero h1{font-size:clamp(3.1rem,6.2vw,6.3rem)}html[lang=ru] h2{overflow-wrap:break-word}
@supports not (backdrop-filter:blur(1px)){.site-header{background:#FFFFFF}}
@media(max-width:1050px){.site-header .site-nav{gap:15px}.site-header .site-nav a,.site-contact{font-size:12px}.site-brand img{width:130px}.site-header{padding:0 18px}.site-actions{gap:8px}}
@media(max-width:800px){body{padding-top:88px}.site-header{top:10px;width:calc(100% - 24px);height:64px;border-radius:16px;padding:0 16px!important}.site-header .site-nav,.site-header .site-contact{display:none!important}.mobile-menu{display:block}.mobile-menu nav{position:absolute;top:calc(100% + 8px);left:0;right:0;display:flex!important;flex-direction:column;align-items:stretch;gap:0;padding:12px;background:rgba(255,255,255,.98);border:1px solid #F5F7F5;border-radius:16px;box-shadow:0 12px 30px #063B4212}.site-header .mobile-menu nav a{display:block!important;padding:12px;font-size:15px;text-decoration:none}.language-options{z-index:2}.hero{padding-top:36px}.site-brand img{width:132px}.site-header .site-actions{gap:12px}html[lang=ru] .hero h1{font-size:clamp(2.7rem,9.5vw,4.8rem)}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
.site-header summary::after,.site-header summary::before{content:none!important}.site-header details{border:0;margin:0}.site-header summary{display:flex;align-items:center;gap:4px}
/* Quiet, consistent vector arrows on every device. */
.icon-arrow{display:inline-block!important;width:18px!important;height:18px!important;min-width:18px;vertical-align:middle;background:none!important;border:0!important;border-radius:0!important;box-shadow:none!important;margin-left:6px;flex-shrink:0}.button span:has(.icon-arrow){background:none!important;border:0!important;box-shadow:none!important;width:auto!important;height:auto!important;padding:0!important}.site-contact span{background:none;border:0}.contact-form h3{font-size:24px;margin:0 0 22px;letter-spacing:-.025em}.contact-form label{display:block;font-size:14px;margin:18px 0 8px}.contact-form input:not([type=checkbox]),.contact-form textarea{width:100%;min-width:0;box-sizing:border-box;font:inherit;font-size:16px;border:1px solid #647879;border-radius:10px;padding:12px 14px;background:rgba(255,255,255,.7);color:#063B42}.contact-form input:focus-visible,.contact-form textarea:focus-visible{outline:2px solid #278573;outline-offset:3px}.challenge-options{border:0;padding:0;margin:18px 0;display:flex;flex-wrap:wrap;gap:8px}.contact-form .challenge-choice{display:flex;align-items:center;gap:8px;margin:0;padding:10px 13px;border:1px solid #647879;border-radius:12px;font-size:14px;cursor:pointer}.challenge-choice:has(:checked){background:#F5F7F5;border-color:#278573}.challenge-choice input{accent-color:#278573;width:16px;height:16px}.contact-form [hidden]{display:none!important}.contact-form .form-actions{display:flex;flex-wrap:wrap;align-items:center;gap:12px}.contact-form button{appearance:none;-webkit-appearance:none;font:inherit;cursor:pointer;min-height:44px}.contact-form #form-back,.contact-form #form-skip{color:inherit;background:none;border:0;padding:10px 4px;font-size:14px}.contact-form #form-next{margin-left:auto}.contact-form button:disabled{opacity:.6;cursor:wait}.contact-form .form-note{line-height:1.6;font-size:13px}.contact-form .form-note a{text-decoration:underline;text-underline-offset:3px}#contact-review{white-space:pre-wrap;overflow-wrap:anywhere;line-height:1.7;padding:18px 0;min-height:140px}#form-status{line-height:1.6}.contact-success{padding:26px 0;font-size:20px}.contact-trap,.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip-path:inset(50%);white-space:nowrap}.contact-form .form-step>p{font-size:15px;line-height:1.6}
@media(max-width:600px){.contact-form{padding:24px!important}.contact-form h3{font-size:22px}.button span:has(.icon-arrow){display:inline-flex!important}.contact-email{font-size:clamp(19px,6vw,28px)}.contact-form .form-top{gap:12px;font-size:11px}}
.legal-page{max-width:820px;padding-top:60px;padding-bottom:90px}.legal-page h1{font-size:clamp(34px,6vw,64px);line-height:1.08;letter-spacing:-.04em;margin:18px 0 44px;overflow-wrap:anywhere}.legal-page h2{font-size:24px;line-height:1.3;margin:32px 0 12px}.legal-page p{font-size:17px;line-height:1.8;max-width:72ch}.legal-links{display:flex;flex-wrap:wrap;gap:12px 24px;font-size:13px}.legal-links a{text-decoration:underline;text-underline-offset:4px}
/* Brand-coloured contact actions, without decorative arrow chips. */
a.contact-cta,.site-header a.site-contact{background:#063B42;color:#FFFFFF!important;border:1px solid #063B42;border-radius:12px;padding:13px 20px;display:inline-flex;align-items:center;justify-content:center;min-height:46px;line-height:1.3;text-decoration:none;gap:10px;box-shadow:none;transition:background .18s ease}
a.contact-cta:hover,.site-header a.site-contact:hover{background:#063B42;border-color:#063B42;color:#FFFFFF!important}a.contact-cta:focus-visible{outline:2px solid #278573;outline-offset:4px}.nav-icon{width:19px;height:19px;flex:0 0 19px;vertical-align:middle}.site-header .mobile-menu nav a{display:flex!important;align-items:center;gap:12px}.site-header .mobile-menu nav .contact-cta{margin-top:8px;justify-content:flex-start;color:#FFFFFF!important;padding:13px 16px}.icon-arrow{display:none!important}.button span:empty{display:none!important}
/* The supplied wordmark has white pixels: blend them into the glass surface. */
.site-brand img,.brand-ailithe img{mix-blend-mode:multiply}.site-brand,.brand-ailithe{background:transparent!important}.site-header{background:rgba(255,255,255,.64)}
.site-header .site-brand{mix-blend-mode:multiply}.site-header .site-brand img{mix-blend-mode:normal}
.site-header .site-brand,.site-header .site-brand img,.brand-ailithe img{mix-blend-mode:normal}.site-brand img,.brand-ailithe img{filter:url(#logo-clear-white)}

/* Transparent logo already contains its own alpha; never remove its pale mint pixels. */
.site-brand img.new-brand-icon,.brand-ailithe img.new-brand-icon{filter:none!important;mix-blend-mode:normal!important;opacity:1!important}