/* ========================================
   PROJECT PAGE STYLES
   ======================================== */

/* --- Navbar override for project page --- */
.navbar--project {
    background-color: var(--color-light);
    border-bottom: 1px solid var(--color-stone-light);
}

.navbar--project .nav-logo-mark,
.navbar--project .nav-logo-text {
    color: var(--color-dark);
}

.project-back-link {
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    font-family: var(--font-heading);
    font-size: 0.75rem;
    font-weight: 400;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--color-stone);
    transition: color 0.3s ease;
}

.project-back-link:hover {
    color: var(--color-dark);
}

/* --- Project Header --- */
.project-header {
    background-color: var(--color-light);
    padding: 140px 0 var(--space-lg);
}

.project-header-content {
    max-width: 720px;
}

.project-category {
    display: inline-block;
    font-family: var(--font-heading);
    font-size: 0.7rem;
    font-weight: 400;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--color-stone);
    margin-bottom: var(--space-md);
}

.project-title {
    font-family: var(--font-heading);
    font-size: clamp(2rem, 5vw, 3.2rem);
    font-weight: 400;
    letter-spacing: 0.02em;
    color: var(--color-dark);
    line-height: 1.2;
    margin-bottom: var(--space-lg);
}

.project-meta-row {
    display: flex;
    align-items: center;
    gap: var(--space-lg);
    margin-bottom: var(--space-lg);
    flex-wrap: wrap;
}

.project-meta-item {
    display: flex;
    flex-direction: column;
    gap: 3px;
}

.project-meta-label {
    font-family: var(--font-heading);
    font-size: 0.6rem;
    font-weight: 400;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--color-stone);
}

.project-meta-value {
    font-family: var(--font-body);
    font-size: 0.95rem;
    font-weight: 400;
    color: var(--color-dark);
}

.project-meta-divider {
    width: 1px;
    height: 32px;
    background-color: var(--color-stone-light);
}

.project-description {
    font-family: var(--font-body);
    font-size: 1rem;
    font-weight: 300;
    line-height: 1.8;
    color: var(--color-stone);
    max-width: 600px;
}

/* --- Masonry Gallery --- */
.project-gallery {
    background-color: var(--color-light);
    padding: 0 0 var(--space-3xl);
}

.masonry-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
}

.masonry-item {
    flex: 1 1 calc(33.333% - 8px);
    max-width: calc(33.333% - 8px);
    min-width: 280px;
    position: relative;
    overflow: hidden;
    border-radius: 2px;
    cursor: pointer;
}

/* Landscape images span 2 columns */
.masonry-item--wide {
    flex: 1 1 calc(66.666% - 6px);
    max-width: calc(66.666% - 6px);
}

.masonry-item img {
    width: 100%;
    display: block;
    transition: transform 0.5s cubic-bezier(0.16, 1, 0.3, 1),
                filter 0.5s ease;
}

.masonry-item:hover img {
    transform: scale(1.03);
}

.masonry-item::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(0,0,0,0.15) 0%, transparent 40%);
    opacity: 0;
    transition: opacity 0.4s ease;
    pointer-events: none;
}

.masonry-item:hover::after {
    opacity: 1;
}

/* Expand icon hint on hover */
.masonry-item::before {
    content: '';
    position: absolute;
    top: 12px;
    right: 12px;
    width: 28px;
    height: 28px;
    border: 1.5px solid rgba(255,255,255,0.8);
    border-radius: 50%;
    background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 14 14' fill='none' stroke='white' stroke-width='1.5'%3E%3Cpolyline points='9,1 13,1 13,5'/%3E%3Cline x1='13' y1='1' x2='8' y2='6'/%3E%3Cpolyline points='5,13 1,13 1,9'/%3E%3Cline x1='1' y1='13' x2='6' y2='8'/%3E%3C/svg%3E") center/14px no-repeat;
    opacity: 0;
    transform: scale(0.8);
    transition: opacity 0.3s ease, transform 0.3s ease;
    z-index: 2;
    pointer-events: none;
}

.masonry-item:hover::before {
    opacity: 1;
    transform: scale(1);
}

/* --- Lightbox --- */
.lightbox {
    position: fixed;
    inset: 0;
    z-index: 10000;
    background-color: rgba(10, 10, 12, 0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.4s ease, visibility 0.4s ease;
}

.lightbox.active {
    opacity: 1;
    visibility: visible;
}

.lightbox-img-wrapper {
    max-width: 90vw;
    max-height: 85vh;
    display: flex;
    align-items: center;
    justify-content: center;
}

.lightbox-img {
    max-width: 100%;
    max-height: 85vh;
    object-fit: contain;
    border-radius: 2px;
    transform: scale(0.92);
    opacity: 0;
    transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1),
                opacity 0.4s ease;
}

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

.lightbox-close {
    position: absolute;
    top: 24px;
    right: 24px;
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: rgba(255,255,255,0.6);
    cursor: pointer;
    transition: color 0.3s ease, transform 0.3s ease;
    z-index: 10;
}

.lightbox-close:hover {
    color: var(--color-white);
    transform: rotate(90deg);
}

.lightbox-nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: rgba(255,255,255,0.5);
    cursor: pointer;
    transition: color 0.3s ease;
    z-index: 10;
}

.lightbox-nav:hover {
    color: var(--color-white);
}

.lightbox-prev {
    left: 24px;
}

.lightbox-next {
    right: 24px;
}

.lightbox-counter {
    position: absolute;
    bottom: 24px;
    left: 50%;
    transform: translateX(-50%);
    font-family: var(--font-heading);
    font-size: 0.7rem;
    letter-spacing: 0.15em;
    color: rgba(255,255,255,0.4);
}

/* --- Footer minimal --- */
.project-footer {
    padding: var(--space-lg) 0;
}

/* --- Reveal animation for masonry items --- */
.masonry-item {
    opacity: 0;
    transform: translateY(30px);
    animation: masonry-reveal 0.6s ease forwards;
}

.masonry-item:nth-child(1) { animation-delay: 0.05s; }
.masonry-item:nth-child(2) { animation-delay: 0.1s; }
.masonry-item:nth-child(3) { animation-delay: 0.15s; }
.masonry-item:nth-child(4) { animation-delay: 0.2s; }
.masonry-item:nth-child(5) { animation-delay: 0.25s; }
.masonry-item:nth-child(6) { animation-delay: 0.3s; }
.masonry-item:nth-child(7) { animation-delay: 0.35s; }
.masonry-item:nth-child(8) { animation-delay: 0.4s; }
.masonry-item:nth-child(9) { animation-delay: 0.45s; }
.masonry-item:nth-child(10) { animation-delay: 0.5s; }
.masonry-item:nth-child(11) { animation-delay: 0.55s; }
.masonry-item:nth-child(12) { animation-delay: 0.6s; }

@keyframes masonry-reveal {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* --- Responsive --- */
@media (max-width: 1024px) {
    .masonry-item {
        flex: 1 1 calc(50% - 6px);
        max-width: calc(50% - 6px);
    }

    .masonry-item--wide {
        flex: 1 1 100%;
        max-width: 100%;
    }
}

@media (max-width: 768px) {
    .project-header {
        padding: 120px 0 var(--space-lg);
    }

    .project-meta-row {
        gap: var(--space-md);
    }

    .project-meta-divider {
        display: none;
    }

    .masonry-item {
        flex: 1 1 100%;
        max-width: 100%;
    }

    .lightbox-prev { left: 8px; }
    .lightbox-next { right: 8px; }
}