body.project-detail-page {
    position: relative;
    overflow: hidden;
    background: #fff;
}

.project-detail-page .site-header {
    position: absolute;
    inset: 50% auto auto 50%;
    transform: translate(-50%, -50%);
    z-index: 1;
    mix-blend-mode: difference;
}

.project-detail-page .site-title {
    filter: blur(6px);
}

.project-detail-page .project-meta {
    position: absolute;
    left: 0;
    right: 0;
    top: 50%;
    transform: translateY(-50%);
    z-index: 3;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.8rem;
    padding: 0 clamp(1.2rem, 2vw, 2rem);
    mix-blend-mode: difference;
    pointer-events: none;
}

.project-detail-page .project-title-wrap,
.project-detail-page .project-description-wrap {
    position: relative;
    display: block;
}

.project-detail-page .project-title-wrap {
    display: flex;
    align-items: center;
    min-height: 1.5rem;
}

.project-detail-page .project-back-link {
    position: absolute;
    top: 1.25rem;
    right: 1.25rem;
    z-index: 10;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 2.4rem;
    height: 2.4rem;
    background: rgba(255, 255, 255, 0.7);
    color: #111;
    text-decoration: none;
    font-size: 1.8rem;
    line-height: 1;
    font-weight: 400;
    transition: opacity 180ms ease, transform 180ms ease, background-color 180ms ease;
}

.project-detail-page .project-back-link:hover,
.project-detail-page .project-back-link:focus-visible {
    opacity: 0.85;
    background: rgba(255, 255, 255, 0.9);
    transform: translateY(-1px);
}

.project-detail-page .project-description-wrap {
    position: absolute;
    left: clamp(1.2rem, 2vw, 2rem);
    top: calc(50% + 0.6rem);
    width: min(15rem, 22vw);
}

.project-detail-page .project-name,
.project-detail-page .project-index,
.project-detail-page .project-arrow {
    filter: none;
    pointer-events: auto;
}

.project-detail-page .project-name {
    animation: subpageFadeUp 500ms ease both;
    animation-delay: 80ms;
}

.project-detail-page .project-description {
    margin: 0;
    color: #646464;
    font-family: Arial, sans-serif;
    font-size: clamp(0.75rem, 1vw, 1.2rem);
    line-height: 1.1;
    font-weight: 400;
    letter-spacing: 0.02em;
    opacity: 0.5;
    text-align: left;
    animation: subpageFadeUp 500ms ease both;
    animation-delay: 80ms;
}

.project-detail-page.nav-direction-prev .project-name,
.project-detail-page.nav-direction-prev .project-description,
.project-detail-page.nav-direction-prev .project-detail-gallery img,
.project-detail-page.nav-direction-prev .project-detail-gallery video,
.project-detail-page.nav-direction-prev .about-text {
    animation-name: subpageFadeUpFromTop;
}

.project-detail-page .project-index-group {
    pointer-events: none;
}

.project-detail-page .project-arrow {
    pointer-events: auto;
}

.project-detail-page .project-detail-gallery {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: clamp(1rem, 2vw, 2rem);
    z-index: 2;
    pointer-events: none;
}

.about-gallery {
    display: flex;
    align-items: center;
    justify-content: center;
}

.about-text {
    max-width: min(38rem, 46vw);
    color: #111;
    font-family: Arial, sans-serif;
    font-size: clamp(0.8rem, 1vw, 1.1rem);
    line-height: 1.2;
    font-weight: 400;
    letter-spacing: 0.02em;
    opacity: 0;
    transform: translateY(14px);
    animation: subpageFadeUp 560ms ease forwards;
    text-align: center;
    filter: drop-shadow(0px 0px 5px #fff) drop-shadow(0px 0px 8px #fff);
}

.about-text p {
    margin: 0 0 1rem;
}

.about-text p:last-child {
    margin-bottom: 0;
}

@media (max-width: 700px) {
    .project-detail-page .project-title-wrap {
        display: none;
    }

    .about-text {
        max-width: min(38rem, 90vw);
    }
}

@keyframes subpageFadeUp {
    from {
        opacity: 0;
        transform: translateY(14px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes subpageFadeUpFromTop {
    from {
        opacity: 0;
        transform: translateY(-14px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}