@media (max-width: 1100px) {
    .service-grid,
    .project-grid,
    .showcase-grid,
    .reference-logo-grid,
    .lighting-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .footer-grid {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 900px) {
    .container {
        width: min(calc(100% - 32px), 720px);
    }

    .main-nav {
        position: fixed;
        inset: 71px 16px auto;
        display: grid;
        gap: 0;
        border: 1px solid var(--line);
        border-radius: 8px;
        background: rgba(255, 255, 255, 0.96);
        color: var(--ink);
        padding: 12px;
        opacity: 0;
        pointer-events: none;
        transform: translateY(-12px);
        transition: opacity 0.25s ease, transform 0.25s ease;
        backdrop-filter: blur(18px);
    }

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

    .main-nav a {
        padding: 14px 10px;
    }

    .menu-toggle {
        display: block;
    }

    .hero-swiper,
    .hero-slide {
        /*min-height: 86vh;*/
    }

    .hero-slide {
        padding: 138px 0 74px;
    }

    .hero h1,
    .page-hero h1,
    .detail-hero h1 {
        font-size: 54px;
    }

    .hero p,
    .page-hero p {
        font-size: 18px;
    }

    .split-grid,
    .feature-grid,
    .contact-grid,
    .detail-layout {
        grid-template-columns: 1fr;
        gap: 42px;
    }

    .section-light,
    .services-section,
    .project-section,
    .listing-section,
    .references-section {
        padding: 88px 0;
    }

    .section-heading h2,
    .feature-copy h2,
    .cta-inner h2 {
        font-size: 38px;
    }

    .stats-grid {
        grid-template-columns: 1fr;
    }

    .feature-visual {
        min-height: 360px;
    }

    .detail-sidebar {
        position: static;
        border-left: 0;
        border-top: 1px solid var(--line);
        padding-left: 0;
        padding-top: 24px;
    }

    .detail-gallery-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .showcase-card span {
        background: rgba(0, 0, 0, 0.65);
    }
}

@media (max-width: 640px) {
    .brand {
        width: 156px;
        height: 60px;
    }

    .hero h1,
    .page-hero h1,
    .detail-hero h1 {
        font-size: 42px;
    }

    .hero p,
    .page-hero p {
        font-size: 16px;
    }

    .hero-actions,
    .btn {
        width: 100%;
    }

    .hero-cue {
        display: none;
    }

    .service-grid,
    .project-grid,
    .showcase-grid,
    .reference-logo-grid,
    .lighting-grid,
    .footer-grid {
        grid-template-columns: 1fr;
    }

    .reference-logo-card {
        min-height: 220px;
    }

    .reference-table-head {
        display: none;
    }

    .reference-table-row {
        grid-template-columns: 1fr;
        gap: 8px;
        padding: 18px;
    }

    .reference-table-row span:last-child {
        color: var(--brass);
        text-align: left;
        font-size: 13px;
        font-weight: 900;
        letter-spacing: 0.12em;
    }

    .service-card {
        min-height: 250px;
    }

    .project-card {
        min-height: 360px;
    }

    .showcase-card,
    .showcase-card img {
        min-height: 330px;
    }

    .showcase-card span {
        font-size: 19px;
    }

    .project-meta {
        margin-top: 216px;
    }

    .testimonial-slide p {
        font-size: 28px;
    }

    .contact-info a {
        font-size: 24px;
    }

    .detail-sidebar-item {
        grid-template-columns: 72px minmax(0, 1fr);
    }

    .detail-sidebar-item img {
        width: 72px;
        height: 72px;
    }

    .detail-gallery-grid {
        grid-template-columns: 1fr;
    }

    .detail-gallery-item img {
        height: 260px;
    }

    .lighting-card {
        grid-template-columns: auto 1fr;
    }

    .lighting-card i {
        display: none;
    }
}