#portfolio-grid .portfolio-card {
    width: 100%;
    height: 100%;
    padding: 14px;
    border-radius: 16px;
    background: #fff;
    box-shadow: 0 20px 45px rgba(15, 23, 42, 0.12);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    cursor: pointer;
    display: flex;
    flex-direction: column;
    outline: none;
}

#portfolio-grid .portfolio-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 25px 55px rgba(15, 23, 42, 0.2);
}

#portfolio-grid .portfolio-card:focus-visible {
    box-shadow: 0 15px 35px rgba(179, 16, 0, 0.35);
}

#portfolio-grid .portfolio-card img {
    width: 100%;
    height: 250px;
    object-fit: cover;
    border-radius: 0;
    transition: transform 0.35s ease;
}

#portfolio-grid .portfolio-card:hover img {
    transform: scale(1.02);
}

#portfolio-grid .portfolio-card h4 {
    font-weight: 600;
    margin-bottom: 0;
}

#portfolio-grid .portfolio-card .portfolio-date {
    font-size: 0.78rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: #6c757d;
}

#portfolio-grid .portfolio-card h5 {
    font-size: 0.95rem;
    letter-spacing: 0.08em;
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 0.75rem;
}

#portfolio-grid .col-lg-4,
#portfolio-grid .col-lg-3 {
    padding: 12px;
}

#portfolio-grid-placeholder {
    min-height: 120px;
}

.portfolio-filter {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    justify-content: center;
}

.portfolio-filter button {
    border: 1px solid rgba(179, 16, 0, 0.3);
    background: #fff;
    color: #111;
    padding: 0.4rem 0.9rem;
    border-radius: 999px;
    font-size: 0.95rem;
    letter-spacing: 0.03em;
    transition: all 0.2s ease;
}

.portfolio-filter button.active,
.portfolio-filter button:hover {
    background: #b31000;
    color: #fff;
    border-color: #b31000;
}

.portfolio-viewer {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.85);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 9999;
}

.portfolio-viewer.hidden {
    display: none;
}

.viewer-content {
    position: relative;
    background: #fff;
    padding: 25px;
    max-width: 1100px;
    width: 95%;
    border-radius: 16px;
    max-height: 90vh;
    overflow-y: auto;
}

.viewer-body {
    display: flex;
    flex-wrap: nowrap;
    gap: 32px;
    align-items: flex-start;
    min-height: 0;
}

.viewer-media {
    flex: 1 1 62%;
    display: flex;
    flex-direction: column;
    gap: 14px;
    min-height: 0;
}

.viewer-info {
    flex: 1 1 38%;
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    background: #fafafa;
    border-radius: 12px;
    padding: 20px;
}

.viewer-info h3 {
    font-size: 1.6rem;
}

.viewer-date {
    font-size: 0.9rem;
    font-weight: 600;
    letter-spacing: 0.08em;
    color: #6c757d;
    margin-bottom: 0.6rem;
}

.viewer-info p {
    line-height: 1.6;
    color: #333;
}

.viewer-close {
    position: absolute;
    top: 15px;
    right: 15px;
    font-size: 32px;
    color: #111;
}

.viewer-carousel-wrapper {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-top: 10px;
    flex: 1 1 auto;
    min-height: 0;
}

.viewer-carousel {
    position: relative;
    flex: 1 1 auto;
    width: 100%;
    min-height: 300px;
    height: clamp(280px, 45vw, 520px);
    background: #f5f5f5;
    border-radius: 12px;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
}

#viewer-main-photo {
    width: 100%;
    height: 100%;
    display: block;
    border-radius: 0;
    transition: opacity 0.35s ease;
    object-fit: contain;
    opacity: 1;
}

#viewer-main-photo.fading {
    opacity: 0;
}

.viewer-nav {
    border: none;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.4rem;
    background: rgba(0,0,0,0.08);
    color: #111;
    transition: background 0.3s ease, transform 0.3s ease;
}

.viewer-nav:hover:not(:disabled) {
    background: #b31000;
    color: #fff;
    transform: scale(1.05);
}

.viewer-nav:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.viewer-thumbs {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(90px, 1fr));
    grid-auto-rows: 72px;
    gap: 12px;
    width: 100%;
    max-width: 100%;
    padding: 8px;
    overflow-y: auto;
    overflow-x: hidden;
    max-height: 220px;
    border: 1px solid rgba(0,0,0,0.05);
    border-radius: 10px;
    flex: 0 0 auto;
    background: #fff;
}

.viewer-thumb {
    border: 2px solid transparent;
    padding: 0;
    border-radius: 8px;
    height: 100%;
    width: 100%;
    background: transparent;
    cursor: pointer;
    transition: border-color 0.2s ease;
}

.viewer-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    border-radius: 0;
}

.viewer-thumb.active {
    border-color: #b31000;
}

.viewer-thumbs.hidden {
    display: none;
}

.viewer-date.hidden {
    display: none;
}

@media (max-width: 768px) {
    #portfolio-grid .portfolio-card img {
        height: 180px;
    }

    .viewer-content {
        padding: 18px;
        border-radius: 12px;
        width: 96%;
    }

    .viewer-body {
        flex-direction: column;
    }

    .viewer-carousel-wrapper {
        flex-direction: column;
    }

    .viewer-carousel {
        height: clamp(220px, 60vw, 360px);
        min-height: 220px;
    }

    .viewer-nav {
        width: 42px;
        height: 42px;
        font-size: 1.2rem;
    }

    .viewer-thumbs {
        max-height: 160px;
        grid-template-columns: repeat(auto-fill, minmax(80px, 1fr));
        grid-auto-rows: 64px;
    }

    .viewer-info {
        padding: 16px;
    }
}