/* ========================
   Project Detail Page
   ======================== */

/* Hero */
.project-hero {
    padding: 120px 0 50px;
    background: linear-gradient(160deg, #f9fafb 0%, #ffffff 50%, #f0f4f8 100%);
}

.project-hero__back {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    font-weight: 500;
    color: var(--color-secondary);
    margin-bottom: 32px;
    transition: var(--transition);
}

.project-hero__back:hover {
    gap: 12px;
    color: var(--color-primary);
}

.project-hero__header {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 40px;
    flex-wrap: wrap;
}

.project-hero__category {
    display: inline-block;
    font-size: 13px;
    font-weight: 600;
    color: var(--color-secondary);
    text-transform: uppercase;
    letter-spacing: 3px;
    margin-bottom: 12px;
}

.project-hero__title {
    font-family: var(--font-heading);
    font-size: 48px;
    font-weight: 900;
    color: var(--color-primary);
    line-height: 1.15;
    margin-bottom: 16px;
}

.project-hero__subtitle {
    font-size: 17px;
    color: var(--color-text);
    line-height: 1.7;
    max-width: 600px;
}

/* Showcase */
.project-showcase {
    padding: 40px 0 60px;
}

.project-showcase__main {
    border-radius: 20px;
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.project-showcase__main img {
    width: 100%;
    height: auto;
    display: block;
}

.project-showcase__placeholder {
    width: 100%;
    height: 500px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 16px;
    color: rgba(255, 255, 255, 0.4);
    font-size: 20px;
}

.project-showcase__placeholder i {
    font-size: 60px;
}

.project-showcase__placeholder span {
    font-size: 16px;
    text-align: center;
    line-height: 1.5;
}

/* Details Layout */
.project-details {
    padding: 20px 0 80px;
}

.project-details__container {
    display: grid;
    grid-template-columns: 300px 1fr;
    gap: 60px;
    align-items: start;
}

/* Sidebar */
.project-sidebar__card {
    background: var(--color-bg);
    border-radius: 20px;
    padding: 32px;
    position: sticky;
    top: 100px;
}

.project-sidebar__item {
    margin-bottom: 28px;
}

.project-sidebar__item:last-child {
    margin-bottom: 0;
}

.project-sidebar__item h4 {
    font-family: var(--font-heading);
    font-size: 13px;
    font-weight: 700;
    color: var(--color-primary);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 8px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.project-sidebar__item h4 i {
    color: var(--color-secondary);
    font-size: 14px;
}

.project-sidebar__item p {
    font-size: 15px;
    color: var(--color-text);
}

.project-sidebar__tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.tag {
    display: inline-block;
    padding: 5px 14px;
    background: var(--color-white);
    border: 1px solid var(--color-border);
    border-radius: 50px;
    font-size: 13px;
    font-weight: 500;
    color: var(--color-primary);
    transition: var(--transition);
}

.tag:hover {
    background: var(--color-secondary);
    border-color: var(--color-secondary);
}

.project-sidebar__link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 14px;
    color: var(--color-secondary);
    font-weight: 500;
    word-break: break-all;
}

.project-sidebar__link:hover {
    color: var(--color-primary);
}

/* Content */
.project-content h2 {
    font-family: var(--font-heading);
    font-size: 26px;
    font-weight: 800;
    color: var(--color-primary);
    margin-bottom: 16px;
    margin-top: 48px;
}

.project-content h2:first-child {
    margin-top: 0;
}

.project-content p {
    font-size: 16px;
    line-height: 1.8;
    color: var(--color-text);
    margin-bottom: 16px;
}

/* Gallery */
.project-gallery {
    margin-top: 48px;
}

.project-gallery__grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
    margin-top: 20px;
}

.project-gallery__item {
    border-radius: 16px;
    overflow: hidden;
    cursor: pointer;
    transition: var(--transition);
    box-shadow: var(--shadow-sm);
}

.project-gallery__item:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.project-gallery__item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: var(--transition);
}

.project-gallery__item:hover img {
    transform: scale(1.03);
}

.project-gallery__placeholder {
    width: 100%;
    height: 250px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 10px;
    color: rgba(255, 255, 255, 0.35);
}

.project-gallery__placeholder i {
    font-size: 36px;
}

.project-gallery__placeholder span {
    font-size: 14px;
}

/* Results */
.project-results {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-top: 24px;
}

.project-results__item {
    text-align: center;
    padding: 32px 20px;
    background: var(--color-bg);
    border-radius: 16px;
}

.project-results__number {
    display: block;
    font-family: var(--font-heading);
    font-size: 36px;
    font-weight: 900;
    color: var(--color-secondary);
    margin-bottom: 8px;
}

.project-results__item p {
    font-size: 14px;
    color: var(--color-text-light);
    margin-bottom: 0;
}

/* Project Navigation */
.project-nav {
    padding: 0 0 80px;
}

.project-nav__container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
}

.project-nav__link {
    display: block;
    padding: 32px;
    background: var(--color-bg);
    border-radius: 16px;
    transition: var(--transition);
}

.project-nav__link:hover {
    background: var(--color-primary);
}

.project-nav__link:hover .project-nav__label,
.project-nav__link:hover .project-nav__name {
    color: var(--color-white);
}

.project-nav__link--next {
    text-align: right;
}

.project-nav__label {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    color: var(--color-text-light);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 8px;
    transition: var(--transition);
}

.project-nav__link--next .project-nav__label {
    justify-content: flex-end;
}

.project-nav__name {
    font-family: var(--font-heading);
    font-size: 20px;
    font-weight: 700;
    color: var(--color-primary);
    transition: var(--transition);
}

/* Lightbox */
.lightbox {
    position: fixed;
    inset: 0;
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.lightbox.active {
    opacity: 1;
}

.lightbox__overlay {
    position: absolute;
    inset: 0;
    background: rgba(10, 22, 40, 0.9);
    cursor: pointer;
}

.lightbox__content {
    position: relative;
    max-width: 90vw;
    max-height: 90vh;
    z-index: 1;
}

.lightbox__content img {
    max-width: 100%;
    max-height: 85vh;
    border-radius: 12px;
    box-shadow: var(--shadow-lg);
}

.lightbox__close {
    position: absolute;
    top: -15px;
    right: -15px;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    border: none;
    background: var(--color-secondary);
    color: var(--color-primary);
    font-size: 18px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
    z-index: 2;
}

.lightbox__close:hover {
    transform: rotate(90deg);
}

/* ========================
   Responsive
   ======================== */
@media (max-width: 768px) {
    .project-hero__title {
        font-size: 34px;
    }

    .project-hero__header {
        flex-direction: column;
        align-items: flex-start;
    }

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

    .project-sidebar__card {
        position: static;
    }

    .project-showcase__placeholder {
        height: 280px;
    }

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

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

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

@media (max-width: 480px) {
    .project-hero__title {
        font-size: 28px;
    }

    .project-showcase__placeholder {
        height: 200px;
    }
}