@media (max-width: 1080px) {
    .primary-nav {
        gap: 2px;
    }

    .nav-link,
    .nav-dropdown > button {
        padding-left: 7px;
        padding-right: 7px;
        font-size: 0.82rem;
    }

    .hero-inner,
    .split-layout,
    .lead-grid {
        grid-template-columns: 1fr;
    }

    .hero {
        align-items: start;
        min-height: auto;
        padding-top: 122px;
    }

    .hero-visual {
        min-height: 440px;
        max-width: 620px;
        margin-right: 0;
    }

    .sticky-copy {
        position: static;
    }

    .card-grid,
    .offer-grid,
    .case-grid,
    .download-grid,
    .project-index-grid,
    .trust-grid,
    .faq-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

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

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

    .architecture-diagram {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 860px) {
    .site-header {
        align-items: center;
    }

    .nav-toggle {
        display: block;
    }

    .primary-nav {
        position: fixed;
        top: 78px;
        left: 16px;
        right: 16px;
        display: none;
        flex-direction: column;
        align-items: stretch;
        padding: 18px;
        border: 1px solid var(--line);
        border-radius: 8px;
        background: rgba(2, 8, 23, 0.98);
        box-shadow: var(--shadow);
    }

    .primary-nav.is-open {
        display: flex;
    }

    .nav-link,
    .nav-dropdown > button,
    .nav-cta {
        width: 100%;
        justify-content: flex-start;
    }

    .dropdown-menu {
        position: static;
        opacity: 1;
        pointer-events: auto;
        transform: none;
        display: none;
        margin: 6px 0 12px;
        min-width: 0;
    }

    .nav-dropdown:focus-within .dropdown-menu,
    .nav-dropdown:hover .dropdown-menu {
        display: block;
    }

    .hero h1,
    .page-hero h1 {
        font-size: 3rem;
    }

    .hero-subhead {
        font-size: 1.08rem;
    }

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

    .hud-panel-one {
        left: 14px;
    }

    .hud-panel-two {
        right: 14px;
    }

    .section {
        padding-top: 84px;
        padding-bottom: 84px;
    }

    .venture-grid,
    .form-grid,
    .footer-grid,
    .cta-panel {
        grid-template-columns: 1fr;
    }

    .article-row {
        grid-template-columns: 1fr;
    }

    .footer-bottom {
        flex-direction: column;
    }
}

@media (max-width: 620px) {
    .brand small {
        display: none;
    }

    .brand-mark {
        min-width: 44px;
        height: 38px;
        padding: 0 7px;
        font-size: 0.78rem;
    }

    .hero,
    .page-hero {
        padding-left: 16px;
        padding-right: 16px;
    }

    .hero h1,
    .page-hero h1 {
        font-size: 2.44rem;
    }

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

    .card-grid,
    .offer-grid,
    .case-grid,
    .download-grid,
    .project-index-grid,
    .trust-grid,
    .faq-grid {
        grid-template-columns: 1fr;
    }

    .hero-visual {
        min-height: 320px;
    }

    .hud-panel {
        width: calc(100% - 28px);
    }

    .hud-panel-one {
        top: 22px;
    }

    .hud-panel-two {
        bottom: 22px;
    }

    .glass-card {
        min-height: auto;
    }

    .project-list-row {
        grid-template-columns: 1fr;
        gap: 6px;
    }

    .lead-form,
    .cta-panel {
        padding: 22px;
    }
}