/* =========================================
PAGE DÉTAIL PROJET (project-detail.php)
========================================= */

.main-project-detail {
    position: relative;
    isolation: isolate;
    overflow: hidden;
    width: 100%;
    background-color: transparent;
    padding: 35px 0 80px;
}

.project-detail-section {
    position: relative;
    z-index: 1;
    width: 100%;
}

.project-ambient-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 900px;
    max-height: 100%;
    pointer-events: none;
    z-index: -1;
    overflow: hidden;
    mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 1) 0%, rgba(0, 0, 0, 0.65) 42%, rgba(0, 0, 0, 0) 78%);
    -webkit-mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 1) 0%, rgba(0, 0, 0, 0.65) 42%, rgba(0, 0, 0, 0) 78%);
}

.ambient-blob {
    position: absolute;
    top: -12%;
    left: 50%;
    transform: translateX(-50%);
    width: clamp(520px, 92vw, 1280px);
    height: clamp(320px, 46vw, 560px);
    object-fit: cover;
    border-radius: 50%;
    filter: blur(110px) saturate(1.85);
    -webkit-filter: blur(110px) saturate(1.85);
    opacity: 0.12;
    will-change: transform;
}

[data-theme="dark"] .ambient-blob {
    opacity: 0.18;
    filter: blur(125px) saturate(1.7);
    -webkit-filter: blur(125px) saturate(1.7);
}

.project-detail-container {
    width: 87%;
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
}

.back-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    width: fit-content;
    font-size: 0.82rem;
    font-weight: 500;
    letter-spacing: -0.01em;
    color: var(--secondary-color);
    transition: opacity 0.25s ease;
    margin-bottom: 45px;
}

.back-link i {
    font-size: 0.85rem;
    transition: transform 0.25s ease;
}

.back-link:hover,
.description-content a:hover {
    opacity: 0.7;
}

.back-link:hover i {
    transform: translateX(-4px);
}

.project-detail-header {
    display: flex;
    flex-direction: column;
    gap: 35px;
    width: 100%;
}

.project-detail-heading {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 20px;
}

.project-detail-heading > h1 {
    font-size: clamp(2.7rem, 6.2vw, 5.2rem);
    font-weight: 600;
    letter-spacing: -0.03em;
    color: var(--secondary-color);
    line-height: 0.95;
    text-box: trim-both cap alphabetic;
}

.project-detail-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 7px;
}

.project-detail-tags > span {
    font-size: 0.78rem;
    font-weight: 400;
    letter-spacing: -0.02em;
    color: var(--secondary-color);
    border: 1px solid var(--secondary-color);
    border-radius: 50px;
    padding: 5px 12px;
}

.project-detail-specs {
    width: 100%;
    display: flex;
    flex-direction: column;
    margin-bottom: 60px;
}

.spec-row {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: 15px;
    padding: 14px 0;
    border-bottom: 1px solid var(--border-subtle);
}

.spec-row:first-child { padding-top: 0; }
.spec-row:last-child { border-bottom: none; padding-bottom: 0; }

.spec-label {
    font-size: 0.8rem;
    font-weight: 500;
    letter-spacing: -0.02em;
    color: var(--secondary-color);
    flex-shrink: 0;
}

.spec-values {
    display: flex;
    flex-wrap: wrap;
    justify-content: flex-end;
    column-gap: 14px;
    row-gap: 4px;
    font-size: 0.85rem;
    font-weight: 400;
    letter-spacing: -0.015em;
    color: var(--secondary-color);
    text-align: right;
}

.project-detail-media {
    display: flex;
    flex-direction: column;
    gap: 25px;
    width: 100%;
    margin-bottom: 35px;
}

.project-detail-media.photo-gallery {
    --gallery-gap: 20px;
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--gallery-gap);
    width: 100%;
}

.photo-item,
.project-media-box {
    width: 100%;
    border-radius: 12px;
    overflow: hidden;
    background-color: var(--border-subtle);
}

.photo-item {
    position: relative;
    align-self: start;
    aspect-ratio: 4 / 3;
    break-inside: avoid;
    cursor: zoom-in;
}

.project-media-box {
    aspect-ratio: 16 / 9;
}

.photo-item > img,
.project-media-box > iframe,
.project-media-box > video,
.project-media-box > img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    border: none;
}

.photo-item > img {
    aspect-ratio: inherit;
    transition: transform 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}

.photo-item:hover > img { transform: scale(1.02); }
.photo-item.landscape { aspect-ratio: 4 / 3; }
.photo-item.portrait { aspect-ratio: 3 / 4; }
.photo-item.square { aspect-ratio: 1 / 1; }

.project-detail-description {
    display: flex;
    flex-direction: column;
    gap: 16px;
    width: 100%;
    max-width: 600px;
    margin-bottom: 30px;
}

.project-detail-description > h2,
.project-detail-description > h3 {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 1.05rem;
    font-weight: 600;
    letter-spacing: -0.03em;
    color: var(--secondary-color);
}

.description-content {
    font-size: 0.9rem;
    font-weight: 400;
    line-height: 1.6;
    letter-spacing: -0.015em;
    color: var(--tertiary-color);
}

.description-content a {
    color: var(--secondary-color);
    text-decoration: underline;
    text-underline-offset: 3px;
    transition: opacity 0.25s ease;
}


/* =========================================
LIGHTBOX PHOTO & BOUTON BACK TO TOP
========================================= */

.lightbox-overlay {
    position: fixed;
    inset: 0;
    z-index: 9999;
    background-color: rgba(12, 12, 12, 0.92);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    padding: 20px 6.5%;
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity 0.3s cubic-bezier(0.16, 1, 0.3, 1), visibility 0.3s;
    user-select: none;
}

.lightbox-overlay.active {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
}

.lightbox-topbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    z-index: 2;
}

.lightbox-counter {
    font-size: 0.82rem;
    font-weight: 500;
    letter-spacing: -0.01em;
    color: rgba(247, 247, 247, 0.75);
    font-variant-numeric: tabular-nums;
}

.lightbox-close,
.lightbox-nav,
.back-to-top {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
}

.lightbox-close {
    background: rgba(247, 247, 247, 0.08);
    border: 1px solid rgba(247, 247, 247, 0.18);
    color: #f7f7f7;
    width: 38px;
    height: 38px;
    border-radius: 50%;
    font-size: 0.95rem;
    transition: background-color 0.25s ease, border-color 0.25s ease, transform 0.25s ease;
}

.lightbox-close:hover,
.lightbox-nav:hover {
    background-color: #f7f7f7;
    color: #0c0c0c;
    border-color: #f7f7f7;
}

.lightbox-stage {
    position: relative;
    flex: 1;
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 0;
    padding: 16px 0;
}

.lightbox-img {
    max-width: 100%;
    max-height: 80vh;
    max-height: 80dvh;
    width: auto;
    height: auto;
    object-fit: contain;
    border-radius: 8px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.45);
    transform: scale(0.97);
    opacity: 0;
    transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.22s ease;
}

.lightbox-overlay.active .lightbox-img.loaded {
    transform: scale(1);
    opacity: 1;
}

.lightbox-nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(247, 247, 247, 0.08);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    border: 1px solid rgba(247, 247, 247, 0.18);
    color: #f7f7f7;
    width: 42px;
    height: 42px;
    border-radius: 50%;
    font-size: 0.9rem;
    z-index: 3;
    transition: background-color 0.25s ease, color 0.25s ease, border-color 0.25s ease, opacity 0.25s ease;
}

.lightbox-prev { left: 0; }
.lightbox-next { right: 0; }
.lightbox-nav.hidden { display: none; }
.lightbox-bottombar { height: 20px; }

.back-to-top {
    --btt-gap: 24px;
    position: fixed;
    bottom: calc(var(--btt-gap) + var(--footer-offset, 0px));
    right: 6.5%;
    z-index: 90;
    width: 40px;
    height: 40px;
    border-radius: 8px;
    background-color: color-mix(in srgb, var(--primary-color) 85%, transparent);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid var(--border-subtle);
    color: var(--secondary-color);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transform: translateY(12px);
    transition: opacity 0.3s cubic-bezier(0.16, 1, 0.3, 1),
                transform 0.3s cubic-bezier(0.16, 1, 0.3, 1),
                visibility 0.3s,
                background-color 0.25s ease,
                color 0.25s ease,
                border-color 0.25s ease;
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transform: translateY(0);
}

.back-to-top i {
    font-size: 0.85rem;
    transition: transform 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

.back-to-top:hover {
    background-color: var(--secondary-color);
    color: var(--primary-color);
    border-color: var(--secondary-color);
}

.back-to-top:hover i { transform: translateY(-2px); }


/* =========================================
MEDIA QUERIES (FUSIONNÉES)
========================================= */

@media screen and (min-width: 500px) {
    .project-detail-media.photo-gallery {
        --gallery-gap: 22px;
        grid-template-columns: repeat(2, 1fr);
        grid-auto-rows: 1px;
        column-gap: var(--gallery-gap);
        row-gap: 0;
        align-items: start;
        margin-bottom: calc(35px - var(--gallery-gap));
    }
    .photo-item.landscape { grid-row-end: span 264; }
    .photo-item.portrait { grid-row-end: span 453; }
    .photo-item.square { grid-row-end: span 345; }
    .project-detail-description { margin-bottom: 40px; }
}

@media screen and (min-width: 600px) {
    .back-link { margin-bottom: 50px; }
    .project-detail-tags > span { font-size: 0.85rem; padding: 5px 14px; }
    .project-detail-description > h2,
    .project-detail-description > h3 { font-size: 1.1rem; }
    .description-content { font-size: 0.95rem; }
    .lightbox-img { max-width: calc(100% - 130px); }
}

@media screen and (min-width: 768px) {
    .main-project-detail { padding: 55px 0 100px; }
    .back-link { font-size: 0.85rem; margin-bottom: 55px; }

    .project-detail-header {
        flex-direction: row;
        justify-content: space-between;
        align-items: flex-start;
        gap: 40px;
        margin-bottom: 45px;
    }

    .project-detail-specs {
        width: 45%;
        max-width: 440px;
        margin-top: 8px;
        margin-bottom: 0;
    }
    
    .spec-row { padding: 16px 0; }
    .lightbox-overlay { padding: 28px 6.5%; }
    .lightbox-nav { width: 46px; height: 46px; }
}

@media screen and (min-width: 1024px) {
    .main-project-detail { padding: 75px 0 120px; }
    .back-link { margin-bottom: 60px; }
    .project-detail-header { margin-bottom: 65px; }
    .project-detail-heading { gap: 26px; }

    .project-detail-specs { width: 42%; max-width: 460px; }
    .spec-row { padding: 18px 0; }
    .spec-label, .spec-values { font-size: 0.85rem; }

    .project-detail-media { margin-bottom: 55px; gap: 35px; }
    .project-media-box, .photo-item { border-radius: 16px; }
    
    .project-detail-media.photo-gallery {
        --gallery-gap: 25px;
        grid-template-columns: repeat(3, 1fr);
        margin-bottom: calc(55px - var(--gallery-gap));
    }
    .photo-item.landscape { grid-row-end: span 306; }
    .photo-item.portrait { grid-row-end: span 525; }
    .photo-item.square { grid-row-end: span 400; }

    .project-detail-description { gap: 20px; margin-bottom: 60px; }
    .project-detail-description > h2,
    .project-detail-description > h3 { font-size: 1.2rem; }
    .description-content { font-size: 1.05rem; line-height: 1.65; }

    .back-to-top {
        --btt-gap: 32px;
        width: 44px;
        height: 44px;
        border-radius: 10px;
    }
    .back-to-top i { font-size: 0.9rem; }
}