.site-header {
            position: fixed;
            top: 0;
            right: 0;
            left: 0;
            z-index: 100;
            border-bottom: 1px solid rgba(145, 177, 225, 0.16);
            background: rgba(2, 8, 23, 0.82);
            backdrop-filter: blur(18px);
        }

        .site-header-inner {
            display: flex;
            width: min(var(--safe-wide, 1520px), calc(100% - 32px));
            min-height: 70px;
            align-items: center;
            justify-content: space-between;
            gap: clamp(12px, 1.4vw, 22px);
            min-width: 0;
        }

        .logo-link {
            text-decoration: none;
        }

        .logo {
            display: inline-flex;
            align-items: center;
            gap: 12px;
            color: #ffffff;
            font-family: 'Unbounded', Arial, sans-serif;
            font-size: 23px;
            font-weight: 700;
            letter-spacing: 0;
        }

        .logo-mark {
            width: 42px;
            height: 42px;
            flex: 0 0 auto;
            border: 1px solid rgba(255, 255, 255, 0.14);
            border-radius: var(--radius);
            background: rgba(255, 255, 255, 0.06) url('/images/logo/logo-unitab-mark.svg') center / 34px 34px no-repeat;
            box-shadow: 0 12px 34px rgba(17, 112, 255, 0.22);
        }

        .nav {
            display: flex;
            min-width: 0;
            max-width: 100%;
            align-items: center;
            justify-content: center;
            gap: clamp(12px, 1.4vw, 24px);
        }

        .nav a {
            position: relative;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            color: rgba(238, 245, 255, 0.78);
            font-size: 14px;
            font-weight: 800;
            letter-spacing: 0;
            text-decoration: none;
            transition: color 0.2s ease;
        }

        .nav a::after {
            position: absolute;
            right: 0;
            bottom: -8px;
            left: 0;
            height: 2px;
            border-radius: 999px;
            background: linear-gradient(90deg, var(--blue), var(--cyan));
            content: '';
            opacity: 0;
            transform: scaleX(0.6);
            transition: opacity 0.2s ease, transform 0.2s ease;
        }

        .nav a:hover {
            color: #ffffff;
        }

        .nav a:hover::after,
        .nav a.is-active::after {
            opacity: 1;
            transform: scaleX(1);
        }

        .nav a svg {
            width: 14px;
            height: 14px;
        }

        body .nav .unit-promo-cta,
        body .mobile-menu-nav .unit-promo-cta {
            overflow: hidden;
            min-height: 42px;
            justify-content: center;
            border: 0;
            border-radius: 12px;
            padding: 0 15px;
            background: linear-gradient(115deg, #82fff0 0%, #48e7ff 52%, #b0ff97 100%);
            box-shadow: 0 0 22px rgba(72, 231, 255, 0.48), 0 0 36px rgba(70, 255, 191, 0.18);
            color: #061425;
            white-space: nowrap;
            transition: box-shadow 0.3s ease, transform 0.3s ease, filter 0.3s ease;
        }

        body .nav .unit-promo-cta:hover,
        body .nav .unit-promo-cta:focus-visible {
            color: #061425;
            box-shadow: 0 0 28px rgba(72, 231, 255, 0.9), 0 0 58px rgba(70, 255, 191, 0.35);
            outline: 0;
            filter: brightness(1.08);
            transform: translateY(-2px);
        }

        /* Shine-on-hover direction inspired by codepen.io/JeremyWink/pen/LYPMLLV. */
        .nav .unit-promo-cta::before {
            position: absolute;
            inset: -2px;
            background: linear-gradient(110deg, transparent 25%, rgba(255, 255, 255, 0.82) 48%, rgba(219, 255, 244, 0.35) 56%, transparent 75%);
            transform: translateX(-130%) skewX(-18deg);
            transition: transform 0.7s cubic-bezier(0.2, 0.65, 0.3, 1);
            content: '';
            pointer-events: none;
        }

        .nav .unit-promo-cta:hover::before,
        .nav .unit-promo-cta:focus-visible::before {
            transform: translateX(130%) skewX(-18deg);
        }

        .nav .unit-promo-cta::after {
            display: none;
        }

        @media (prefers-reduced-motion: reduce) {
            .nav .unit-promo-cta::before { display: none; }
            body .nav .unit-promo-cta:hover,
            body .nav .unit-promo-cta:focus-visible { transform: none; }
        }

        .header-actions {
            display: flex;
            min-width: 0;
            max-width: 100%;
            align-items: center;
            justify-content: flex-end;
            gap: 10px;
        }

        .language-menu {
            position: relative;
        }

        .language-trigger,
        .language-option {
            text-decoration: none;
            border: 1px solid var(--line);
            background: rgba(8, 18, 34, 0.92);
            color: var(--text);
            cursor: pointer;
        }

        .language-trigger {
            display: inline-flex;
            min-width: 94px;
            min-height: 46px;
            align-items: center;
            justify-content: space-between;
            gap: 10px;
            border-radius: var(--radius);
            padding: 0 12px;
            transition: border-color 0.2s ease, background 0.2s ease, box-shadow 0.2s ease;
        }

        .language-trigger:hover,
        .language-trigger[aria-expanded='true'] {
            border-color: rgba(83, 211, 255, 0.55);
            background: rgba(12, 34, 65, 0.98);
            box-shadow: 0 0 0 3px rgba(37, 132, 255, 0.12), 0 0 20px rgba(39, 148, 255, 0.18);
        }

        .language-trigger::after {
            width: 8px;
            height: 8px;
            border-right: 2px solid rgba(238, 245, 255, 0.7);
            border-bottom: 2px solid rgba(238, 245, 255, 0.7);
            content: '';
            transform: rotate(45deg) translateY(-2px);
            transition: transform 0.2s ease;
        }

        .language-trigger[aria-expanded='true']::after {
            transform: rotate(225deg) translateY(-2px);
        }

        .language-trigger-code {
            color: #ffffff;
            font-size: 14px;
            font-weight: 800;
            line-height: 1;
            text-transform: uppercase;
        }

        .language-trigger-flag {
            width: 22px;
            height: 22px;
            flex: 0 0 auto;
            border-radius: 50%;
            object-fit: cover;
            box-shadow: 0 0 0 1px rgba(255, 255, 255, 0.22), 0 0 16px rgba(83, 211, 255, 0.2);
        }

        .language-option-mark {
            display: flex;
            min-width: 0;
            flex: 1 1 auto;
            align-items: center;
            gap: 10px;
        }

        .language-option-flag {
            width: 24px;
            height: 24px;
            flex: 0 0 auto;
            border-radius: 50%;
            object-fit: cover;
            box-shadow: 0 0 0 1px rgba(255, 255, 255, 0.16);
        }

        .language-option-label {
            min-width: 0;
            flex: 1 1 auto;
        }

        .language-option strong {
            display: block;
            font-size: 14px;
            font-weight: 800;
            line-height: 1.2;
            white-space: nowrap;
        }

        .language-dropdown {
            position: absolute;
            top: calc(100% + 10px);
            right: 0;
            width: max-content;
            min-width: 224px;
            max-width: min(320px, calc(100vw - 24px));
            padding: 8px;
            border: 1px solid var(--line);
            border-radius: var(--radius);
            background: #071326;
            box-shadow: var(--shadow);
            opacity: 0;
            transform: translateY(8px);
            transition: opacity 0.2s ease, transform 0.2s ease, visibility 0.2s ease;
            visibility: hidden;
        }

        .language-menu.is-open .language-dropdown {
            opacity: 1;
            transform: translateY(0);
            visibility: visible;
        }

        @media (prefers-reduced-motion: reduce) {
            .language-trigger,
            .language-trigger::after,
            .language-dropdown {
                transition: none;
            }
        }

        .language-option {
            display: flex;
            width: 100%;
            min-height: 50px;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            border: 0;
            border-radius: var(--radius);
            padding: 8px 10px;
            text-align: left;
        }

        .language-option:hover,
        .language-option.is-active {
            background: var(--soft-blue);
        }

        .language-option-check {
            width: 18px;
            height: 18px;
            flex: 0 0 auto;
            color: var(--blue);
            opacity: 0;
        }

        .language-option.is-active .language-option-check {
            opacity: 1;
        }


        .btn {
            display: inline-flex;
            min-height: 46px;
            align-items: center;
            justify-content: center;
            gap: 10px;
            border-radius: var(--radius);
            padding: 0 20px;
            font-size: 14px;
            font-weight: 800;
            line-height: 1.2;
            text-align: center;
            text-decoration: none;
            transition: border-color 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease, background 0.2s ease;
        }
        .btn:hover {
            transform: translateY(-1px);
        }
        .btn svg {
            width: 18px;
            height: 18px;
            flex: 0 0 auto;
        }
        .btn-primary {
            border: 1px solid var(--blue);
            background: var(--blue);
            color: #ffffff;
            box-shadow: 0 18px 42px rgba(17, 112, 255, 0.34);
        }
        .btn-primary:hover {
            background: var(--blue-deep);
            border-color: var(--blue-deep);
        }
        .login-link {
            display: inline-flex;
            min-height: 46px;
            align-items: center;
            justify-content: center;
            min-width: 86px;
            border: 1px solid var(--line);
            border-radius: var(--radius);
            background: rgba(255, 255, 255, 0.02);
            color: rgba(238, 245, 255, 0.88);
            font-size: 14px;
            font-weight: 800;
            padding: 0 18px;
            text-decoration: none;
            transition: border-color 0.2s ease, color 0.2s ease, background 0.2s ease;
        }
        .login-link:hover {
            border-color: var(--line-blue);
            background: rgba(255, 255, 255, 0.05);
            color: #ffffff;
        }
.site-header{--text:#eef5ff;--muted:#a8b7cc;--line:rgba(145,177,225,.18);font-family:Manrope,Arial,sans-serif}
body .site-header{background:#020817}
@media(min-width:781px) and (max-width:1120px){.site-header-inner{align-items:flex-start;flex-direction:column;padding:16px 0}.nav,.header-actions{width:100%;justify-content:flex-start}}

.site-header .logo-link,
.mobile-menu-panel .logo-link { display: flex; align-items: center; }
.site-header .logo,
.mobile-menu-panel .logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: clamp(26px, 2.2vw, 32px);
    line-height: 1;
}
.site-header .logo-mark,
.mobile-menu-panel .logo-mark {
    width: 44px;
    height: 44px;
    border: 0;
    border-radius: 0;
    background: transparent url('/images/logo/logo-unitab-mark.svg') center / contain no-repeat;
    box-shadow: none;
}