/* Responsive Layout Rules */

@media (max-width: 1100px) {
    .header .header-inner {
        gap: 20px;
    }
    .header .logo {
        max-width: 175px;
        height: 50px;
    }
    .header.scrolled .logo {
        height: 50px;
    }
    .nav {
        gap: 18px;
    }
    .nav a {
        font-size: 10px;
    }
    .mobile-contact {
        display: none;
    }
    .wrap {
        width: calc(100% - 48px);
    }
    .section {
        padding: 80px 0;
    }
    .intro-editorial {
        gap: 60px;
    }
    .split {
        gap: 40px;
    }
    .products-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 850px) {
    .header-inner > .button {
        display: none;
    }
    .nav a.mobile-contact {
        display: block;
    }
    .nav {
        gap: 20px;
    }
    .intro-editorial {
        gap: 35px;
    }
    .editorial-photo {
        min-height: 450px;
    }
    .steps {
        grid-template-columns: 1fr 1fr;
    }
    .section-head {
        gap: 40px;
    }
    .split {
        grid-template-columns: 1fr;
    }
    .form {
        grid-template-columns: 1fr 1fr;
    }
    .contact-aside {
        max-width: none;
    }
    .page-contact .split {
        gap: 55px;
    }
    .services {
        grid-template-columns: 1fr;
    }
    .service, .service + .service {
        min-height: 0;
        padding: 28px;
    }
    .service-icon {
        margin-bottom: 20px;
    }
    .product-detail-layout {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 760px) {
    body {
        margin: 0;
    }
    .header {
        top: 0;
        left: 0;
        right: 0;
    }
    .header .header-inner {
        height: 80px;
    }
    .header.scrolled .header-inner {
        height: 72px;
    }
    .header .logo {
        max-width: 180px;
        height: 48px;
    }
    .header.scrolled .logo {
        height: 44px;
    }

    /* Mobile Menu Toggle Button (Default / Unscrolled Header) */
    .menu {
        display: block;
        flex-shrink: 0;
        min-height: 44px;
        font-size: 11px;
        font-weight: 600;
        padding: 9px 14px;
        color: var(--white);
        background: rgba(255, 255, 255, 0.12);
        border: 1px solid rgba(255, 255, 255, 0.28);
        border-radius: var(--radius-none);
        transition: background-color 0.2s ease, border-color 0.2s ease, color 0.2s ease;
    }
    .menu:hover {
        background: rgba(255, 255, 255, 0.22);
        border-color: var(--cyan);
        color: var(--white);
    }

    /* Mobile Menu Toggle Button (Scrolled Header) */
    .header.scrolled .menu {
        color: #111719;
        background: rgba(17, 23, 25, 0.05);
        border: 1px solid rgba(17, 23, 25, 0.18);
    }
    .header.scrolled .menu:hover {
        background: rgba(0, 136, 179, 0.08);
        border-color: #0088b3;
        color: #0088b3;
    }

    /* Mobile Dropdown Menu (Default / Transparent Header) */
    .nav {
        display: none;
        top: 100%;
        left: 0;
        right: 0;
        padding: 16px 24px 20px;
        background: rgba(17, 23, 25, 0.98);
        -webkit-backdrop-filter: blur(16px);
        backdrop-filter: blur(16px);
        box-shadow: 0 16px 36px rgba(0, 0, 0, 0.5);
        border-top: 1px solid rgba(255, 255, 255, 0.12);
        position: absolute;
        flex-direction: column;
        align-items: stretch;
        z-index: 1000;
        gap: 0;
    }
    .nav.open {
        display: flex;
    }
    .nav a {
        font-size: 13px;
        font-weight: 500;
        padding: 14px 0;
        color: rgba(255, 255, 255, 0.9);
        border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        transition: color 0.2s ease, border-color 0.2s ease, padding-left 0.2s ease;
    }
    .nav a:hover,
    .nav a[aria-current="page"],
    .nav a.active {
        color: var(--cyan);
        border-bottom-color: var(--cyan);
        padding-left: 4px;
    }
    .nav a.mobile-contact {
        display: block;
        margin-top: 6px;
        color: var(--cyan);
        font-weight: 600;
        border-bottom: none;
    }

    /* Mobile Dropdown Menu (Scrolled / Light Header) */
    .header.scrolled .nav {
        background: rgba(255, 255, 255, 0.98);
        -webkit-backdrop-filter: blur(16px);
        backdrop-filter: blur(16px);
        box-shadow: 0 16px 36px rgba(0, 0, 0, 0.12);
        border-top: 1px solid rgba(0, 0, 0, 0.08);
    }
    .header.scrolled .nav a {
        color: #111719;
        border-bottom-color: rgba(0, 0, 0, 0.06);
    }
    .header.scrolled .nav a:hover,
    .header.scrolled .nav a[aria-current="page"],
    .header.scrolled .nav a.active {
        color: #0088b3;
        border-bottom-color: #0088b3;
        padding-left: 4px;
    }
    .header.scrolled .nav a.mobile-contact {
        color: #0088b3;
        border-bottom: none;
    }
    .wrap {
        width: calc(100% - 40px);
    }
    .section {
        padding: 65px 0;
    }
    .small {
        font-size: 9px;
        margin-bottom: 20px;
    }
    .intro-editorial {
        grid-template-columns: 1fr;
        gap: 36px;
    }
    .intro-label {
        margin-top: 38px;
    }
    .brand-attributes {
        max-width: none;
    }
    .editorial-photo {
        min-height: 370px;
    }
    .editorial-photo figcaption {
        padding: 18px;
        font-size: 9px;
    }
    .editorial-photo figcaption span {
        font-size: 8px;
    }
    .section-head {
        grid-template-columns: 1fr;
        gap: 20px;
        margin-bottom: 30px;
    }
    .section-head > p {
        justify-self: start;
    }
    .steps {
        gap: 8px;
    }
    .step {
        padding: 20px 16px;
        min-height: 230px;
    }
    .step span {
        margin-bottom: 35px;
    }
    .step h3 {
        font-size: 24px;
    }
    .step p {
        font-size: 11px;
    }
    .footer {
        padding: 45px 0 15px;
    }
    .foot-grid {
        grid-template-columns: 1fr 1fr;
        gap: 35px;
    }
    .foot-bottom {
        gap: 12px;
        font-size: 8px;
        flex-direction: column;
    }
    .notice {
        font-size: 9px;
        padding: 14px 20px;
    }
    .page-hero {
        padding: 130px 20px 50px;
    }
    .page-hero h1 {
        font-size: 43px;
    }
    .page-hero p {
        font-size: 13px;
    }
    .breadcrumb {
        margin-bottom: 25px;
        font-size: 9px;
    }
    .page-photo-band {
        height: 220px;
    }
    .page-photo-band > span {
        left: 20px;
        right: 20px;
        font-size: 8px;
    }
    .page-photo-band b {
        display: none;
    }
    .content-row {
        grid-template-columns: 1fr;
        gap: 22px;
        padding: 30px 0;
    }
    .content-row h2 {
        font-size: 31px;
    }
    .content-row p {
        font-size: 13px;
    }
    .faq-layout {
        grid-template-columns: 1fr;
        gap: 25px;
    }
    .filters {
        flex-direction: row;
        gap: 6px;
        flex-wrap: wrap;
    }
    .filter {
        font-size: 10px;
        padding: 12px;
        border: 1px solid var(--line);
    }
    summary {
        font-size: 18px;
    }
    .form {
        grid-template-columns: 1fr;
    }
    .field {
        grid-column: 1 / -1;
    }
    .contact-aside {
        padding: 28px;
    }
    .page-contact h2 {
        font-size: 32px;
    }
    .value-grid {
        grid-template-columns: 1fr;
        gap: 25px;
    }
    .products-grid {
        grid-template-columns: 1fr;
    }
}