.site-header {
    position: sticky;
    top: 0;
    z-index: 80;
    display: grid;
    grid-template-columns: auto minmax(0, 1fr);
    gap: clamp(20px, 3vw, 40px);
    align-items: center;
    width: min(1240px, calc(100% - clamp(24px, 4vw, 48px)));
    transform: translateY(clamp(10px, 1.6vw, 18px));
    margin: 0 auto;
    min-height: 72px;
    padding: 12px clamp(18px, 2.4vw, 30px);
    background: rgba(255, 253, 250, 0.65);
    border: 1px solid rgba(227, 219, 207, 0.9);
    border-radius: 999px;
    box-shadow: 0 14px 40px rgba(16, 35, 63, 0.10), inset 0 1px 0 rgba(255, 255, 255, 0.6);
    backdrop-filter: blur(18px) saturate(150%);
    transition: background-color 220ms ease, border-color 220ms ease, box-shadow 220ms ease, backdrop-filter 220ms ease;
}

.site-header.is-scrolled {
    background: rgba(255, 253, 250, 0.65);
    border-color: rgba(185, 138, 58, 0.28);
    box-shadow: 0 20px 50px rgba(16, 35, 63, 0.16), inset 0 1px 0 rgba(255, 255, 255, 0.6);
    backdrop-filter: blur(26px) saturate(170%);
}

.brand {
    position: relative;
    z-index: 2;
    min-width: 0;
    transition: transform 200ms ease;
}

.brand:hover {
    transform: translateY(-1px) scale(1.015);
}

.brand-logo {
    height: 40px;
    filter: drop-shadow(0 2px 6px rgba(0, 0, 0, 0.55));
    transition: transform 200ms ease, filter 200ms ease;
}

.site-header-actions {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: clamp(20px, 3vw, 34px);
    min-width: 0;
}

/* --- Nawigacja z suwakiem --- */

.site-nav {
    position: relative;
    display: flex;
    align-items: center;
    gap: clamp(6px, 1.2vw, 14px);
    padding: 6px;
    color: var(--muted);
    font-size: 14px;
    background: linear-gradient(180deg, rgba(16, 35, 63, 0.045), rgba(16, 35, 63, 0.02));
    border: 1px solid rgba(16, 35, 63, 0.07);
    border-radius: 999px;
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.6), inset 0 -1px 2px rgba(16, 35, 63, 0.03);
}

.site-nav-indicator {
    position: absolute;
    top: 6px;
    left: 6px;
    height: calc(100% - 12px);
    width: 0;
    background: linear-gradient(135deg, rgba(185, 138, 58, 0.16), rgba(185, 138, 58, 0.28));
    border: 1px solid rgba(185, 138, 58, 0.4);
    border-radius: 999px;
    box-shadow: 0 6px 18px rgba(185, 138, 58, 0.18), inset 0 1px 0 rgba(255, 255, 255, 0.5);
    opacity: 0;
    pointer-events: none;
    transform: translateX(0);
    transition: transform 180ms ease-out,
                width 180ms ease-out,
                opacity 150ms ease;
    will-change: transform, width;
}

.site-nav-indicator.is-visible {
    opacity: 1;
}

.site-nav-link {
    position: relative;
    z-index: 1;
    display: inline-flex;
    align-items: center;
    min-height: 38px;
    padding: 8px 16px;
    color: rgba(23, 23, 22, 0.66);
    font-weight: 650;
    line-height: 1;
    border-radius: 999px;
    transition: color 200ms ease, transform 200ms ease;
}

.site-nav-link:hover,
.site-nav-link:focus-visible {
    color: var(--navy);
    transform: translateY(-1px);
}

.site-nav-link.is-active {
    color: rgba(23, 23, 22, 0.92);
    font-weight: 760;
}

/* usuwamy stare podkreślenie ::after - zastępuje je suwak */
.site-nav-link::after {
    content: none;
}

/* =========================================================================
   CTA nagłówka — glossy „sheen" (spójne z .dg-btn--navy na kontakcie).
   Markup w header.php bez zmian: <span>Umów konsultację</span><span>↗</span>
   ========================================================================= */
.site-header-cta {
    position: relative;
    isolation: isolate;
    overflow: hidden;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    min-height: 44px;
    padding: 11px 22px;
    color: #ffffff;
    background: linear-gradient(150deg, #1b3a68, #10233f 58%, #0b1d34);
    border: 0;
    border-radius: 999px;
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.18), 0 6px 18px rgba(16, 35, 63, 0.16);
    font-size: 14px;
    font-weight: 700;
    line-height: 1;
    white-space: nowrap;
    transition: transform 400ms cubic-bezier(0.2, 0.8, 0.2, 1), box-shadow 400ms ease;
}

.site-header-cta::before {
    content: "";
    position: absolute;
    inset: 0;
    z-index: 2;
    pointer-events: none;
    background: linear-gradient(115deg, transparent 34%, rgba(255, 255, 255, 0.4) 50%, transparent 66%);
    transform: translateX(-130%);
    transition: transform 750ms cubic-bezier(0.2, 0.8, 0.2, 1);
}

.site-header-cta:hover::before,
.site-header-cta:focus-visible::before {
    transform: translateX(130%);
}

.site-header-cta span {
    position: relative;
    z-index: 1;
}

.site-header-cta span:last-child {
    display: inline-flex;
    transition: transform 400ms cubic-bezier(0.2, 0.8, 0.2, 1);
}

.site-header-cta:hover,
.site-header-cta:focus-visible {
    color: #ffffff;
    transform: translateY(-2px);
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.22), 0 10px 26px rgba(16, 35, 63, 0.2), 0 0 24px rgba(185, 138, 58, 0.28);
}

.site-header-cta:hover span:last-child,
.site-header-cta:focus-visible span:last-child {
    transform: translate(3px, -3px);
}

@media (prefers-reduced-motion: reduce) {
    .site-header-cta,
    .site-header-cta::before,
    .site-header-cta span:last-child {
        transition: none;
    }
}

.nav-toggle {
    position: relative;
    z-index: 2;
    display: none;
    align-items: center;
    justify-content: center;
    gap: 9px;
    min-height: 42px;
    padding: 10px 13px;
    color: var(--ink);
    background: rgba(255, 255, 255, 0.84);
    border: 1px solid rgba(227, 219, 207, 0.96);
    border-radius: 999px;
    cursor: pointer;
    font: inherit;
    font-size: 13px;
    font-weight: 720;
    line-height: 1;
    box-shadow: 0 10px 24px rgba(16, 35, 63, 0.06);
    transition: background-color 180ms ease, border-color 180ms ease, color 180ms ease;
}

.nav-toggle:hover,
.nav-toggle:focus-visible,
.nav-toggle.is-active {
    background: var(--navy);
    border-color: var(--navy);
    color: #ffffff;
}

.nav-toggle-lines {
    position: relative;
    display: inline-grid;
    gap: 5px;
    width: 18px;
}

.nav-toggle-lines span {
    display: block;
    width: 18px;
    height: 2px;
    background: currentColor;
    border-radius: 999px;
    transition: transform 240ms cubic-bezier(0.34, 1.56, 0.64, 1), opacity 180ms ease;
}

.nav-toggle.is-active .nav-toggle-lines span:first-child {
    transform: translateY(3.5px) rotate(45deg);
}

.nav-toggle.is-active .nav-toggle-lines span:last-child {
    transform: translateY(-3.5px) rotate(-45deg);
}

@media (max-width: 980px) {
    body.is-site-nav-open {
        overflow: hidden;
    }

    .site-header {
        grid-template-columns: minmax(0, 1fr) auto;
        min-height: 72px;
        padding: 12px 16px;
    }

    .brand-logo {
        height: 34px;
    }

    .nav-toggle {
        display: inline-flex;
    }

    .site-header-actions {
        position: absolute;
        top: calc(100% + 8px);
        left: 16px;
        right: 16px;
        display: grid;
        gap: 12px;
        max-height: calc(100vh - 92px);
        padding: 14px;
        overflow-y: auto;
        background: rgba(255, 253, 250, 0.92);
        border: 1px solid rgba(227, 219, 207, 0.96);
        border-radius: 18px;
        box-shadow: 0 22px 52px rgba(16, 35, 63, 0.16);
        backdrop-filter: blur(22px);
        opacity: 0;
        pointer-events: none;
        transform: translateY(-8px);
        transition: opacity 180ms ease, transform 180ms ease;
    }

    .site-header-actions.is-open {
        opacity: 1;
        pointer-events: auto;
        transform: translateY(0);
    }

    .site-nav {
        position: static;
        display: grid;
        gap: 4px;
        min-width: 0;
        padding: 0;
        background: transparent;
        border: 0;
        border-radius: 0;
        box-shadow: none;
        font-size: 15px;
    }

    /* na mobile suwak nie ma sensu przy układzie pionowym */
    .site-nav-indicator {
        display: none;
    }

    .site-nav.is-open {
        display: grid;
    }

    .site-nav-link {
        position: relative;
        min-height: 44px;
        padding: 12px 13px;
        border-radius: 12px;
    }

    .site-nav-link:hover,
    .site-nav-link:focus-visible {
        background: rgba(185, 138, 58, 0.09);
        color: var(--ink);
        transform: none;
    }

    .site-nav-link.is-active {
        background: rgba(185, 138, 58, 0.09);
        color: var(--ink);
    }

    /* subtelne fade+slide, po kolei, przy otwieraniu menu */
    .site-nav.is-open .site-nav-link {
        opacity: 0;
        transform: translateY(-6px);
        animation: navLinkIn 260ms ease forwards;
    }

    .site-nav.is-open .site-nav-link:nth-child(1) { animation-delay: 40ms; }
    .site-nav.is-open .site-nav-link:nth-child(2) { animation-delay: 90ms; }
    .site-nav.is-open .site-nav-link:nth-child(3) { animation-delay: 140ms; }

    @keyframes navLinkIn {
        to {
            opacity: 1;
            transform: translateY(0);
        }
    }

    .site-header-cta {
        width: 100%;
        min-height: 46px;
    }
}

@media (max-width: 680px) {
    .site-header {
        padding-left: 14px;
        padding-right: 14px;
    }

    .site-header-actions {
        left: 12px;
        right: 12px;
    }

    .nav-toggle-label {
        display: none;
    }

    .nav-toggle {
        width: 42px;
        padding-inline: 0;
    }
}