:root {
    --volta-red: #cc0000;
    --volta-ink: #2d2d2d;
    --volta-line: rgba(45, 45, 45, 0.12);
}

header {
    position: absolute;
}

.site-nav {
    position: absolute;
    z-index: 90;
    top: 92px;
    left: 10%;
    right: 10%;
    display: flex;
    gap: 8px;
    align-items: center;
    overflow-x: auto;
    padding: 8px;
    border: 1px solid var(--volta-line);
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.88);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
    backdrop-filter: blur(16px);
    scrollbar-width: none;
}

.site-nav::-webkit-scrollbar {
    display: none;
}

.site-nav a {
    flex: 0 0 auto;
    padding: 9px 14px;
    border-radius: 999px;
    color: var(--volta-ink);
    font-family: "Montserrat", sans-serif;
    font-size: 0.72rem;
    font-weight: 800;
    letter-spacing: 0.06em;
    text-decoration: none;
    text-transform: uppercase;
    transition: color 160ms ease, background 160ms ease;
}

.site-nav a:hover,
.site-nav a:focus-visible {
    color: var(--volta-red);
    outline: none;
}

.site-nav a[aria-current="page"] {
    color: #fff;
    background: var(--volta-red);
}

.lang-btn {
    padding: 5px 3px;
    border-radius: 4px;
}

.lang-btn:focus-visible,
a:focus-visible {
    outline: 3px solid rgba(204, 0, 0, 0.28);
    outline-offset: 3px;
}

img {
    height: auto;
}

.site-footer {
    display: flex;
    justify-content: space-between;
    gap: 24px;
    align-items: center;
    padding: 28px 10%;
    border-top: 1px solid var(--volta-line);
    color: rgba(45, 45, 45, 0.66);
    font-size: 0.78rem;
}

.site-footer strong {
    color: var(--volta-ink);
    font-family: "Montserrat", sans-serif;
    letter-spacing: 0.08em;
}

@media (max-width: 760px) {
    header {
        padding: 20px 5% !important;
    }

    .logo-text span {
        display: none;
    }

    .lang-switcher {
        gap: 6px !important;
        font-size: 0.78rem !important;
    }

    .site-nav {
        top: 72px;
        left: 5%;
        right: 5%;
        border-radius: 14px;
    }

    .site-nav a {
        padding: 8px 11px;
        font-size: 0.65rem;
    }

    .hero-section,
    .main-layout,
    .solar-layout {
        padding-top: 142px !important;
    }

    .hero-text h1,
    .intro-block h1 {
        font-size: clamp(2.4rem, 12vw, 3.6rem) !important;
        overflow-wrap: anywhere;
    }

    .modules-grid {
        grid-template-columns: 1fr !important;
    }

    .site-footer {
        align-items: flex-start;
        flex-direction: column;
        padding: 24px 5%;
    }
}