/* ========================================
   Portfolio Page (포트폴리오)
======================================== */

/* Portfolio Scroll Animations */
.portfolio-header.scroll-animate {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

.portfolio-header.scroll-animate.animated {
    opacity: 1;
    transform: translateY(0);
}

.portfolio-header.scroll-animate .portfolio-title,
.portfolio-header.scroll-animate .portfolio-desc {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.portfolio-header.scroll-animate.animated .portfolio-title {
    opacity: 1;
    transform: translateY(0);
    transition-delay: 0.1s;
}

.portfolio-header.scroll-animate.animated .portfolio-desc {
    opacity: 1;
    transform: translateY(0);
    transition-delay: 0.3s;
}

/* Case Card Animations - Auto animate on page load */
.case-card.auto-animate {
    opacity: 0;
    animation: caseCardFadeIn 0.8s ease-out forwards;
}

.case-card.auto-animate:nth-child(1) {
    animation-delay: 0.2s;
}

.case-card.auto-animate:nth-child(2) {
    animation-delay: 0.4s;
}

.case-card.auto-animate:nth-child(3) {
    animation-delay: 0.6s;
}

@keyframes caseCardFadeIn {
    from {
        opacity: 0;
        transform: translateY(50px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Case Card inner elements animation */
.case-card.auto-animate .case-image,
.case-card.auto-animate .case-label,
.case-card.auto-animate .case-desc {
    opacity: 0;
    animation: caseInnerFadeIn 0.5s ease-out forwards;
}

.case-card.auto-animate:nth-child(1) .case-image { animation-delay: 0.3s; }
.case-card.auto-animate:nth-child(1) .case-label { animation-delay: 0.45s; }
.case-card.auto-animate:nth-child(1) .case-desc { animation-delay: 0.6s; }

.case-card.auto-animate:nth-child(2) .case-image { animation-delay: 0.5s; }
.case-card.auto-animate:nth-child(2) .case-label { animation-delay: 0.65s; }
.case-card.auto-animate:nth-child(2) .case-desc { animation-delay: 0.8s; }

.case-card.auto-animate:nth-child(3) .case-image { animation-delay: 0.7s; }
.case-card.auto-animate:nth-child(3) .case-label { animation-delay: 0.85s; }
.case-card.auto-animate:nth-child(3) .case-desc { animation-delay: 1s; }

@keyframes caseInnerFadeIn {
    from {
        opacity: 0;
        transform: translateY(15px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Case Card Scroll Animations (for pages that need scroll trigger) */
.case-card.scroll-animate {
    opacity: 0;
    transform: translateY(50px);
    transition: opacity 0.7s ease-out, transform 0.7s ease-out;
}

.case-card.scroll-animate.animated {
    opacity: 1;
    transform: translateY(0);
}

/* Case Image Hover Effect */
.case-card .case-image {
    overflow: hidden;
}

.case-card .case-image img {
    transition: transform 0.5s ease-out;
}

.case-card:hover .case-image img {
    transform: scale(1.05);
}

/* Masonry Item Animations */
.masonry-item.scroll-animate {
    opacity: 0;
    transform: translateY(30px) scale(0.95);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.masonry-item.scroll-animate.animated {
    opacity: 1;
    transform: translateY(0) scale(1);
}

.masonry-item img {
    transition: transform 0.5s ease-out;
}

.masonry-item:hover img {
    transform: scale(1.05);
}

/* Portfolio Header */
.portfolio-header {
    text-align: center;
    margin-bottom: 60px;
}

.portfolio-title {
    font-size: 40px;
    font-weight: bold;
    color: #222;
    margin-bottom: 20px;
}

.portfolio-desc {
    font-size: 15px;
    color: #222;
    line-height: 1.8;
}

/* Masonry Gallery */
.masonry-gallery {
    display: flex;
    gap: 20px;
}

.masonry-column {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.masonry-item {
    background: #f5f5f5;
    overflow: hidden;
}

.masonry-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

/* Item Heights */
.masonry-item {
    min-height: 200px;
}

.masonry-item.tall {
    min-height: 400px;
}

.masonry-item.medium {
    min-height: 300px;
}

/* ========================================
   New Portfolio Masonry Section
======================================== */

.portfolio-masonry-section {
    background-color: #fff;
    padding: 60px 0 80px;
    margin-top: 0;
}

.portfolio-masonry-section .container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0;
}

.portfolio-masonry {
    column-count: 4;
    column-gap: 30px;
    position: relative;
}

.portfolio-masonry::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: calc(var(--fade-offset, 150px) + 280px);
    background: linear-gradient(to bottom,
        rgba(255,255,255,0) 0px,
        rgba(255,255,255,0.45) 140px,
        rgba(255,255,255,0.9) 280px,
        rgba(255,255,255,1) 330px);
    pointer-events: none;
    z-index: 1;
}

.portfolio-masonry .masonry-item {
    break-inside: avoid;
    margin-bottom: 30px;
    min-height: 0;
    background: #f5f5f5;
    overflow: hidden;
}

.portfolio-masonry .masonry-item img {
    width: 100%;
    height: auto;
    display: block;
    object-fit: contain;
    transition: transform 0.4s ease;
}

.portfolio-masonry .masonry-item:hover img {
    transform: scale(1.05);
}

/* More Button */
.portfolio-more-btn-wrap {
    display: flex;
    justify-content: center;
    margin-top: 50px;
}

.portfolio-more-btn {
    width: 298px;
    height: 60px;
    background: #222;
    border: none;
    border-radius: 10px;
    color: #fff;
    font-size: 16px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    font-family: 'Pretendard', sans-serif;
}

.portfolio-more-btn:hover {
    background: #000;
    color: #fff;
}

/* Masonry Scroll Animation */
.portfolio-masonry .masonry-item {
    opacity: 0;
    transform: translateY(50px);
    transition: opacity 0.7s ease-out, transform 0.7s ease-out;
}

.portfolio-masonry .masonry-item.animated {
    opacity: 1;
    transform: translateY(0);
}

/* Portfolio Masonry Responsive */
@media (max-width: 1200px) {
    .portfolio-masonry {
        column-count: 3;
    }
}

@media (max-width: 992px) {
    .portfolio-masonry {
        column-count: 2;
    }

    .portfolio-masonry-section {
        padding: 40px 0 60px;
    }
}

@media (max-width: 768px) {
    .portfolio-masonry {
        column-gap: 8px;
    }

    .portfolio-masonry .masonry-item {
        margin-bottom: 8px;
    }

    .portfolio-more-btn {
        padding: 10px 40px;
        font-size: 13px;
    }
}

@media (max-width: 480px) {
    .portfolio-masonry {
        column-count: 1;
    }

    .portfolio-masonry-section .container {
        padding: 0 15px;
    }

    .portfolio-masonry-section {
        padding: 30px 0 50px;
    }
}

/* Portfolio Responsive */
@media (max-width: 1024px) {
    .masonry-gallery {
        gap: 15px;
    }

    .masonry-column {
        gap: 15px;
    }

    .masonry-item {
        min-height: 150px;
    }

    .masonry-item.tall {
        min-height: 300px;
    }
}

@media (max-width: 768px) {
    .portfolio-title {
        font-size: 26px;
    }

    .portfolio-desc br {
        display: none;
    }

    .masonry-gallery {
        flex-direction: column;
    }

    .masonry-item {
        min-height: 200px;
    }

    .masonry-item.tall {
        min-height: 300px;
    }
}

@media (max-width: 480px) {
    .portfolio-title {
        font-size: 22px;
    }

    .portfolio-desc {
        font-size: 14px;
    }
}

/* ========================================
   Customer Cases (고객사례)
======================================== */

.customer-cases {
    display: flex;
    gap: 30px;
}

.case-card {
    flex: 1;
}

.case-image {
    width: 100%;
    height: 280px;
    border-radius: 8px;
    overflow: hidden;
    margin-bottom: 20px;
    background: #f5f5f5;
}

.case-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.case-label {
    font-size: 15px;
    font-weight: bold;
    color: #3498db;
    margin-bottom: 10px;
    letter-spacing: 1px;
}

.case-desc {
    font-size: 15px;
    color: #222;
    line-height: 1.7;
}

/* Customer Cases Responsive */
@media (max-width: 1024px) {
    .customer-cases {
        gap: 20px;
    }

    .case-image {
        height: 220px;
    }
}

@media (max-width: 768px) {
    .customer-cases {
        flex-direction: column;
        gap: 40px;
    }

    .case-image {
        height: 280px;
    }
}

@media (max-width: 480px) {
    .case-image {
        height: 220px;
    }
}