/* ------------------------------------------------------------
   15. PORTFOLIO FILTERING
------------------------------------------------------------ */
.portfolio-filter {
    display: flex;
    justify-content: center;
    gap: 15px;
    flex-wrap: wrap;
    margin-bottom: 40px;
}

.filter-btn {
    background: transparent;
    color: var(--text-color);
    border: 1px solid var(--border-color);
    padding: 10px 25px;
    border-radius: 30px;
    cursor: pointer;
    font-weight: 600;
    transition: all 0.3s ease-in-out;
    font-family: var(--font-heading);
    font-size: 14px;
}

.filter-btn:hover,
.filter-btn.active {
    background: var(--primary-color);
    color: #ffffff;
    border-color: var(--primary-color);
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(1, 145, 164, 0.2);
}

/* Animation State Classes */
.work-card {
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Hidden state for filtering */
.work-card.hide {
    display: none !important;
}

/* Scaling animation for entering items */
.work-card.scale-in {
    animation: scaleIn 0.4s ease forwards;
}

@keyframes scaleIn {
    from {
        opacity: 0;
        transform: scale(0.8);
    }

    to {
        opacity: 1;
        transform: scale(1);
    }
}

.work-image {
    cursor: pointer;
}

/* ------------------------------------------------------------
   16. PORTFOLIO MODAL POPUP
------------------------------------------------------------ */
.portfolio-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 99999;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease-in-out;
    display: flex;
    justify-content: center;
    align-items: center;
}

.portfolio-modal.active {
    opacity: 1;
    visibility: visible;
}

.modal-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.85);
    backdrop-filter: blur(5px);
    -webkit-backdrop-filter: blur(5px);
}

.modal-content {
    position: relative;
    width: 90%;
    max-width: 900px;
    background: var(--bg-card);
    border-radius: 15px;
    padding: 20px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4);
    transform: scale(0.9);
    transition: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    border: 1px solid var(--border-color);
}

.portfolio-modal.active .modal-content {
    transform: scale(1);
}

.close-modal {
    position: absolute;
    top: -40px;
    right: 0;
    color: #fff;
    font-size: 28px;
    cursor: pointer;
    transition: var(--transition);
    width: 40px;
    height: 40px;
    display: flex;
    justify-content: center;
    align-items: center;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
}

.close-modal:hover {
    color: var(--primary-color);
    background: rgba(255, 255, 255, 0.2);
    transform: rotate(90deg);
}

.modal-body {
    overflow: hidden;
    border-radius: 10px;
}

/* Modal Slider Styles */
.portfolio-popup-slider .slide-item {
    outline: none;
}

.portfolio-popup-slider img {
    width: 100%;
    height: auto;
    max-height: 70vh;
    object-fit: contain;
    border-radius: 5px;
    display: block;
    margin: 0 auto;
}

/* Custom Slick Arrows for Modal */
.slick-arrow.popup-arrow {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    z-index: 10;
    width: 50px;
    height: 50px;
    background: rgba(0, 0, 0, 0.5);
    color: white;
    border: none;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 18px;
    transition: var(--transition);
}

.slick-arrow.popup-arrow:hover {
    background: var(--primary-color);
}

.slick-prev.popup-arrow {
    left: 20px;
}

.slick-next.popup-arrow {
    right: 20px;
}