.portfolio-block { 
    padding: 120px 20px; 
    border-top: 1px solid var(--border-color); 
}

.portfolio-header { 
    text-align: center; 
    margin-bottom: 60px; 
}

.portfolio-badge { 
    font-family: 'Syncopate', sans-serif; 
    font-size: 11px; 
    text-transform: uppercase; 
    letter-spacing: 4px; 
    color: var(--accent); 
    display: block; 
    margin-bottom: 15px; 
}

.portfolio-slider-container { 
    position: relative; 
    width: 100%; 
    max-width: 1200px; 
    margin: 0 auto; 
}

.portfolio-slider-viewport { 
    width: 100%; 
    overflow: hidden; 
    padding: 20px 0; 
}

.portfolio-slider-track { 
    display: flex; 
    gap: 25px; 
    transition: transform 0.5s cubic-bezier(0.25, 1, 0.5, 1); 
    will-change: transform; 
}

.portfolio-wrapper { 
    flex: 0 0 calc((100% - (25px * 3)) / 4) !important; 
    perspective: 1000px; 
    height: 440px; 
}

.portfolio-case-card { 
    position: relative;
    width: 100%; 
    height: 100%; 
    background: var(--bg-card); 
    border: 1px solid var(--border-color); 
    border-radius: 4px; 
    overflow: hidden; 
    display: flex; 
    flex-direction: column; 
    transform-style: preserve-3d; 
    box-shadow: 0 20px 40px rgba(0,0,0,0.4); 
    transition: transform 0.1s ease-out, border-color 0.4s ease; 
}

/* Фото подгружаются из HTML-кода через инлайны style (background-image), тут только геометрия */
.case-split-zone { 
    position: relative; 
    width: 100%; 
    height: 50% !important; 
    background-size: cover; 
    background-position: center; 
    background-repeat: no-repeat; 
    transition: filter 0.4s ease; 
}

.before-zone { 
    border-bottom: 1px solid var(--border-color) !important; 
    filter: grayscale(0.3) brightness(0.25) contrast(1.1); 
}

.after-zone { 
    filter: grayscale(0.1) brightness(0.4) contrast(1.15); 
}

.case-label { 
    position: absolute; 
    top: 15px; 
    left: 20px; 
    font-family: 'Syncopate', sans-serif; 
    font-size: 10px; 
    text-transform: uppercase; 
    letter-spacing: 2px; 
    padding: 5px 14px; 
    border-radius: 2px; 
    font-weight: 700; 
    z-index: 5; 
}

.label-before { 
    background: rgba(172, 164, 164, 0.08) !important; 
    color: #ffffff !important; 
    border: 1px solid rgba(255, 255, 255, 0.3) !important; 
    text-shadow: 0 1px 4px rgba(0, 0, 0, 0.9); 
}

.label-after { 
    background: rgba(197, 168, 128, 0.15) !important; 
    color: var(--accent) !important; 
    border: 1px solid rgba(197, 168, 128, 0.4) !important; 
    text-shadow: 0 1px 4px rgba(0, 0, 0, 0.6); 
}

.slider-arrow { 
    position: absolute; 
    top: 50%; 
    transform: translateY(-50%); 
    width: 46px; 
    height: 46px; 
    background: rgba(19, 21, 24, 0.9); 
    border: 1px solid var(--border-color); 
    border-radius: 50%; 
    display: flex; 
    align-items: center; 
    justify-content: center; 
    cursor: pointer; 
    z-index: 100; 
    transition: all 0.3s ease; 
    -webkit-tap-highlight-color: transparent; 
}

.slider-arrow svg { 
    width: 22px; 
    height: 22px; 
    fill: var(--text-muted); 
    transition: fill 0.3s ease; 
}

.slider-arrow:hover { 
    background: var(--accent); 
    border-color: var(--accent); 
    box-shadow: 0 0 20px rgba(197, 168, 128, 0.2); 
}

.slider-arrow:hover svg { 
    fill: #000; 
}

.prev-arrow { 
    left: -23px; 
} .next-arrow { 
    right: -23px; 
}

.portfolio-wrapper:hover .portfolio-case-card { 
    border-color: rgba(197, 168, 128, 0.3); 
    box-shadow: 0 30px 60px rgba(0,0,0,0.6); 
}

.portfolio-wrapper:hover .before-zone { 
    filter: grayscale(0.1) brightness(0.45) contrast(1.15) !important; 
}

.portfolio-wrapper:hover .after-zone { 
    filter: grayscale(0) brightness(0.8) contrast(1.1) saturate(1.1) !important; 
}

@media (max-width: 1024px) {
    .portfolio-wrapper { 
        flex: 0 0 calc((100% - 25px) / 2) !important; 
        height: 440px; 
    }

    .prev-arrow { 
        left: -10px; 
    } .next-arrow { 
        right: -10px; 
    }
}
@media (max-width: 768px) {
    .portfolio-block { 
        padding: 60px 20px !important; 
    } .portfolio-wrapper { 
        flex: 0 0 100% !important; 
        height: 420px; 
    }

    .slider-arrow { 
        width: 40px; height: 40px; 
    } .prev-arrow { 
        left: 5px; 
    } .next-arrow { 
        right: 5px; 
    }

    .after-zone { 
        filter: grayscale(0) brightness(0.7) contrast(1.1) !important; 
    } .before-zone { 
        filter: grayscale(0.1) brightness(0.4) contrast(1.1) !important; 
    }

    .portfolio-case-card { 
        transform: none !important; 
        perspective: none !important; 
    }
}