.product-page {
    background:
        radial-gradient(circle at 12% 10%, rgba(0, 159, 227, .2), transparent 28rem),
        radial-gradient(circle at 86% 36%, rgba(40, 184, 245, .1), transparent 32rem),
        linear-gradient(135deg, var(--dark), var(--navy) 55%, var(--dark));
}

.product-page .topbar {
    position: sticky;
    top: 0;
    z-index: 1000;
}

.nav-panel {
    display: flex;
    align-items: center;
    gap: 28px;
    margin-left: auto;
}

.nav-links .is-current {
    color: var(--cyan2);
}

.menu-toggle {
    display: none;
    width: 46px;
    height: 46px;
    padding: 0;
    border: 1px solid rgba(255, 255, 255, .15);
    border-radius: 12px;
    background: transparent;
    color: inherit;
    cursor: pointer;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    gap: 5px;
}

.menu-toggle span {
    display: block;
    width: 22px;
    height: 2px;
    border-radius: 4px;
    background: currentColor;
    transition: transform .25s ease, opacity .2s ease;
}

.menu-toggle.is-active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.menu-toggle.is-active span:nth-child(2) { opacity: 0; }
.menu-toggle.is-active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.product-hero {
    position: relative;
    padding: clamp(58px, 8vw, 110px) 0 clamp(68px, 8vw, 110px);
    overflow: hidden;
}

.product-hero::before {
    content: "";
    position: absolute;
    width: min(48vw, 720px);
    aspect-ratio: 1;
    right: -14vw;
    top: -34%;
    border-radius: 50%;
    background: rgba(0, 159, 227, .08);
    filter: blur(2px);
    pointer-events: none;
}

.product-hero-grid {
    position: relative;
    display: grid;
    grid-template-columns: minmax(0, .92fr) minmax(420px, 1.08fr);
    gap: clamp(36px, 6vw, 78px);
    align-items: center;
}

.product-hero-copy h1 {
    font-size: clamp(43px, 6.2vw, 76px);
}

.product-hero-copy .lead {
    font-size: clamp(18px, 1.7vw, 21px);
}

.product-tags,
.deliverables {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 28px;
}

.product-tags span,
.deliverables span {
    padding: 8px 13px;
    border: 1px solid rgba(40, 184, 245, .3);
    border-radius: 999px;
    background: rgba(255, 255, 255, .055);
    color: var(--soft);
    font-size: 13px;
    font-weight: 700;
}

.product-hero-media,
.photo-video-media,
.product-video-card {
    position: relative;
    margin: 0;
    border: 1px solid rgba(40, 184, 245, .3);
    border-radius: 30px;
    overflow: hidden;
    box-shadow: 0 34px 100px rgba(0, 0, 0, .42), 0 0 60px rgba(0, 159, 227, .1);
    background: #02080d;
}

.product-hero-media {
    min-height: 570px;
}

.product-hero-media img,
.photo-video-media img {
    width: 100%;
    height: 100%;
    display: block;
    object-fit: cover;
}

.product-video-card video {
    width: 100%;
    aspect-ratio: 16 / 9;
    display: block;
    background: #000;
    object-fit: cover;
}

.product-video-card figcaption {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 8px 18px;
    padding: 18px 22px;
    color: var(--soft);
    font-size: 13px;
}

.product-video-card figcaption strong {
    color: white;
    font-size: 15px;
}

.product-hero-media img {
    position: absolute;
    inset: 0;
}

.product-hero-media::after,
.photo-video-media::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, transparent 54%, rgba(1, 17, 25, .82));
    pointer-events: none;
}

.product-hero-media figcaption,
.photo-video-media figcaption {
    position: absolute;
    z-index: 2;
    left: 24px;
    right: 24px;
    bottom: 20px;
    color: white;
    font-weight: 800;
    letter-spacing: .02em;
}

.product-intro {
    padding-top: 26px;
}

.narrow-copy {
    width: min(930px, calc(100% - 32px));
}

.narrow-copy .lead,
.narrow-copy .copy {
    max-width: 880px;
}

.portfolio-section {
    position: relative;
}

.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(12, 1fr);
    grid-auto-rows: 74px;
    grid-auto-flow: dense;
    gap: 16px;
}

.portfolio-item {
    position: relative;
    grid-column: span 4;
    grid-row: span 6;
    padding: 0;
    border: 1px solid rgba(215, 234, 243, .14);
    border-radius: 22px;
    overflow: hidden;
    background: #04131c;
    color: white;
    cursor: zoom-in;
    box-shadow: 0 20px 54px rgba(0, 0, 0, .24);
}

.portfolio-item.portfolio-wide {
    grid-column: span 8;
    grid-row: span 5;
}

.portfolio-item.portfolio-tall {
    grid-column: span 4;
    grid-row: span 7;
}

.portfolio-item img {
    width: 100%;
    height: 100%;
    display: block;
    object-fit: cover;
    transition: transform .5s ease, filter .35s ease;
}

.portfolio-item::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, transparent 58%, rgba(1, 17, 25, .86));
    pointer-events: none;
}

.portfolio-item span {
    position: absolute;
    z-index: 2;
    left: 20px;
    bottom: 17px;
    font-size: 14px;
    font-weight: 800;
    letter-spacing: .04em;
}

.portfolio-item:hover img,
.portfolio-item:focus-visible img {
    transform: scale(1.035);
    filter: brightness(1.06);
}

.portfolio-item:focus-visible {
    outline: 2px solid var(--cyan2);
    outline-offset: 3px;
}

.portfolio-hint {
    margin-top: 16px;
    color: var(--soft);
    font-size: 13px;
    text-align: right;
}

.applications-section {
    border-top: 1px solid rgba(215, 234, 243, .08);
    border-bottom: 1px solid rgba(215, 234, 243, .08);
    background: rgba(0, 159, 227, .035);
}

.application-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 15px;
}

.application-grid article {
    min-height: 170px;
    padding: 22px;
    border: 1px solid rgba(215, 234, 243, .12);
    border-radius: 20px;
    background: linear-gradient(145deg, rgba(5, 38, 54, .9), rgba(12, 61, 84, .44));
    transition: transform .25s ease, border-color .25s ease;
}

.application-grid article:hover {
    transform: translateY(-3px);
    border-color: rgba(40, 184, 245, .38);
}

.application-grid article > span,
.process-grid li > span {
    display: block;
    margin-bottom: 22px;
    color: var(--cyan2);
    font-size: 13px;
    font-weight: 800;
    letter-spacing: .12em;
}

.application-grid h3 {
    margin: 0;
    font-size: 18px;
    line-height: 1.35;
    letter-spacing: -.015em;
}

.photo-video-grid {
    display: grid;
    grid-template-columns: minmax(0, 1.12fr) minmax(0, .88fr);
    gap: clamp(36px, 6vw, 72px);
    align-items: center;
}

.photo-video-media {
    min-height: 500px;
}

.photo-video-media img {
    position: absolute;
    inset: 0;
}

.photo-video-section .copy + .copy {
    margin-top: 14px;
}

.process-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
    margin-top: 36px;
    padding: 0;
    list-style: none;
}

.process-grid li {
    position: relative;
    min-height: 250px;
    padding: 26px;
    border: 1px solid rgba(40, 184, 245, .2);
    border-radius: 22px;
    background: rgba(255, 255, 255, .045);
}

.process-grid h3 {
    font-size: 21px;
}

.process-grid p {
    color: var(--soft);
    font-size: 14px;
}

.product-cta {
    padding-top: 38px;
}

.product-cta-inner {
    position: relative;
    isolation: isolate;
    overflow: hidden;
    padding: clamp(38px, 6vw, 76px);
    border: 1px solid rgba(40, 184, 245, .34);
    border-radius: 30px;
    background:
        linear-gradient(90deg, rgba(1, 17, 25, .96), rgba(1, 17, 25, .82) 58%, rgba(1, 17, 25, .45)),
        url("images/knight-rider-detail.webp") center 48% / cover;
    box-shadow: var(--shadow);
}

.product-cta-inner::after {
    content: "";
    position: absolute;
    z-index: -1;
    inset: 0;
    background: linear-gradient(120deg, rgba(0, 159, 227, .09), transparent 54%);
}

.product-cta-inner h2,
.product-cta-inner .lead {
    max-width: 800px;
}

.product-page .modal-content {
    max-height: 90vh;
    overflow: auto;
}

@media (max-width: 1080px) {
    .product-hero-grid {
        grid-template-columns: minmax(0, .95fr) minmax(380px, 1.05fr);
        gap: 34px;
    }

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

@media (max-width: 991px) {
    html { scroll-padding-top: 78px; }
    body.menu-open { overflow: hidden; }

    .topbar .nav {
        position: relative;
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 12px;
        min-height: 70px;
        padding-top: 8px;
        padding-bottom: 8px;
    }

    .topbar .brand { min-width: 0; }
    .topbar .logo-img { max-height: 48px; width: auto; }
    .topbar .brand span { font-size: 17px; white-space: nowrap; }

    .menu-toggle {
        display: inline-flex;
        flex: 0 0 46px;
    }

    .nav-panel {
        position: absolute;
        left: 0;
        right: 0;
        top: calc(100% + 8px);
        display: none;
        flex-direction: column;
        align-items: stretch;
        gap: 18px;
        padding: 18px;
        border: 1px solid rgba(255, 255, 255, .12);
        border-radius: 18px;
        background: #08152c;
        box-shadow: 0 20px 44px rgba(0, 0, 0, .35);
        z-index: 1100;
    }

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

    .nav-panel .nav-links {
        display: flex !important;
        flex-direction: column;
        gap: 0;
    }

    .nav-panel .nav-links a {
        display: block;
        width: 100%;
        padding: 13px 4px;
        border-bottom: 1px solid rgba(255, 255, 255, .1);
    }

    .nav-panel .nav-links a:last-child { border-bottom: 0; }
    .nav-panel .nav-cta { width: 100%; text-align: center; }

    .product-hero-grid,
    .photo-video-grid {
        grid-template-columns: 1fr;
    }

    .product-hero-media,
    .photo-video-media {
        min-height: 0;
        aspect-ratio: 16 / 10;
    }

    .portfolio-grid {
        grid-template-columns: repeat(2, 1fr);
        grid-auto-rows: auto;
    }

    .portfolio-item,
    .portfolio-item.portfolio-wide,
    .portfolio-item.portfolio-tall {
        grid-column: auto;
        grid-row: auto;
        aspect-ratio: 4 / 5;
    }

    .portfolio-item.portfolio-wide {
        aspect-ratio: 16 / 10;
    }
}

@media (max-width: 640px) {
    .product-hero {
        padding-top: 48px;
    }

    .product-hero-copy h1 {
        font-size: clamp(37px, 11vw, 52px);
    }

    .product-hero-media,
    .photo-video-media {
        aspect-ratio: 4 / 5;
    }

    .portfolio-grid,
    .application-grid,
    .process-grid {
        grid-template-columns: 1fr;
    }

    .portfolio-item,
    .portfolio-item.portfolio-wide,
    .portfolio-item.portfolio-tall {
        aspect-ratio: 4 / 5;
    }

    .portfolio-item.portfolio-wide:first-child,
    .portfolio-item:nth-child(4),
    .portfolio-item:nth-child(6),
    .portfolio-item:nth-child(7) {
        aspect-ratio: 16 / 10;
    }

    .application-grid article,
    .process-grid li {
        min-height: 0;
    }

    .product-cta-inner {
        border-radius: 22px;
        background-position: 38% 50%;
    }

    .portfolio-hint {
        text-align: left;
    }
}