/* PORTFOLIO SECTION STYLES */
.portfolio {
    background-color: var(--color-dark, #050505);
    padding: 100px 0;
    position: relative;
    overflow: hidden;
}

.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 40px;
    margin-top: 60px;
}

.portfolio-item {
    position: relative;
    border-radius: 20px;
    overflow: hidden;
    aspect-ratio: 4/3;
    cursor: pointer;
    transform-style: preserve-3d;
    background: var(--color-light-gray, #2f2f2f);
}

/* Der Trick: Bild als Hintergrund, das leicht zoomt */
.portfolio-image {
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    transition: transform 0.8s cubic-bezier(0.2, 1, 0.3, 1), filter 0.4s ease;
}

.portfolio-item:hover .portfolio-image {
    transform: scale(1.1);
    filter: brightness(0.25);
}

/* Overlay Gradient */
.portfolio-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(
        to top, 
        rgba(0,0,0,0.95) 0%, 
        rgba(0,0,0,0.7) 40%, 
        rgba(0,0,0,0.1) 100%
    );
    opacity: 0;
    transition: opacity 0.4s ease;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    padding: 30px;
    transform: translateZ(20px); /* Schiebt Inhalt im 3D Raum nach vorne */
}

.portfolio-item:hover .portfolio-overlay {
    opacity: 1;
}

/* Content Animation */
.portfolio-content {
    transform: translateY(20px);
    transition: transform 0.4s ease;
    text-align: left;
}

.portfolio-item:hover .portfolio-content {
    transform: translateY(0);
}

.portfolio-tag {
    display: inline-block;
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--color-gold, #D4AF37);
    margin-bottom: 10px;
    font-weight: 600;
}

.portfolio-title {
    font-family: var(--font-display, serif);
    font-size: 2rem;
    color: var(--color-white, #fff);
    margin-bottom: 10px;
    line-height: 1.2;
}

.portfolio-desc {
    color: var(--color-text-dark, #888);
    font-size: 1rem;
    margin-bottom: 20px;
    opacity: 0.8;
}

.portfolio-link {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    color: var(--color-white, #fff);
    text-decoration: none;
    font-weight: 500;
    border-bottom: 1px solid var(--color-gold, #D4AF37);
    padding-bottom: 2px;
    transition: all 0.3s ease;
}

.portfolio-link:hover {
    color: var(--color-gold, #D4AF37);
    gap: 15px;
}