@media (max-width: 768px) {
    /* Compact, touch-friendly header and drawer shared by every page. */
    .header {
        position: fixed;
        padding: 0.65rem 0;
        background: rgba(18, 18, 18, 0.92);
        backdrop-filter: blur(14px);
        -webkit-backdrop-filter: blur(14px);
    }

    .header .container {
        min-height: 48px;
    }

    .header .logo {
        min-width: 0;
        max-width: calc(100% - 58px);
        gap: 8px;
    }

    .header .logo__icon {
        width: 72px !important;
        height: auto !important;
        flex: 0 0 72px;
    }

    .header .logo__text {
        min-width: 0;
        max-width: 155px;
        margin: 0 !important;
        padding: 0;
        font-size: 0.67rem !important;
        line-height: 1.15;
        overflow-wrap: anywhere;
    }

    .header .logo__text span:last-child {
        margin-top: 2px !important;
        font-size: 0.75rem !important;
        line-height: 1.15 !important;
    }

    .mobile-toggle {
        width: 44px;
        height: 44px;
        flex: 0 0 44px;
        border-radius: 50%;
    }

    .nav {
        height: 100vh;
        height: 100dvh;
        padding: 78px 1.25rem max(1.5rem, env(safe-area-inset-bottom));
    }

    .nav__list {
        width: 100%;
        gap: 0;
    }

    .nav__item {
        width: 100%;
    }

    .nav__link {
        min-height: 52px;
        padding: 0.8rem 0;
        border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    }

    .nav__link iconify-icon {
        transition: transform 0.2s ease;
    }

    .nav__item.submenu-open > .nav__link iconify-icon {
        transform: rotate(180deg);
    }

    .nav__dropdown {
        display: none;
        width: 100%;
        min-width: 0;
        margin: 0;
        padding: 0.35rem 0 0.5rem 1rem;
        border: 0;
        border-radius: 0;
        background: transparent;
        gap: 0;
        transform: none;
    }

    .nav__item.submenu-open > .nav__dropdown {
        display: flex;
    }

    .nav__dropdown-link {
        min-height: 42px;
        display: flex;
        align-items: center;
        padding: 0.6rem 0;
    }

    .header__action,
    .header.menu-open .header__action {
        display: none;
    }

    /* Contacts page. */
    .contacts-header {
        padding: 105px 0 35px !important;
    }

    .contacts-content {
        padding: 2.5rem 0;
    }

    .contacts-grid {
        gap: 1.5rem;
    }

    .contact-info-card,
    .online-kontakt {
        min-width: 0;
        padding: 1.25rem;
        border-radius: 18px;
    }

    .info-group {
        margin-bottom: 1.5rem;
    }

    .info-value {
        max-width: 100%;
        font-size: 1rem;
        overflow-wrap: anywhere;
    }

    .online-kontakt__title {
        font-size: 1.75rem;
    }

    .online-kontakt__subtitle {
        margin-bottom: 1.5rem;
        line-height: 1.5;
    }

    .contact-form-grid {
        gap: 0;
        margin-bottom: 0;
    }

    .c-form-group {
        min-width: 0;
        margin-bottom: 1rem;
    }

    .c-input,
    select.c-input {
        min-width: 0;
        max-width: 100%;
        padding: 0.875rem 1rem;
        font-size: 16px;
    }

    .lang-toggle {
        display: grid;
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .lang-toggle-btn {
        min-width: 0;
        padding: 0.75rem 0.5rem;
        white-space: normal;
    }

    .c-submit-btn {
        margin-top: 0.25rem;
        padding: 1rem;
    }

    #contact-form {
        scroll-margin-top: 85px;
    }
}