/* ---- Project Cards Grid ---- */
.portfolio-filters {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    justify-content: center;
    margin-bottom: 3rem;
}

.portfolio-filter-btn {
    padding: 0.5rem 1.25rem;
    border: 2px solid rgba(0, 168, 232, 0.5);
    border-radius: 50px;
    background: transparent;
    color: rgba(255, 255, 255, 0.9);
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
}

.portfolio-filter-btn:hover,
.portfolio-filter-btn.active {
    background: var(--portfolio-blue);
    border-color: var(--portfolio-blue);
    color: white;
}

.portfolio-projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
    gap: 2rem;
}

.portfolio-project-card {
    position: relative;
    border-radius: 16px;
    overflow: hidden;
    background: var(--portfolio-dark-lighter);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    cursor: pointer;
    text-decoration: none;
    color: inherit;
    display: block;
    border: 1px solid rgba(255, 255, 255, 0.06);
}

.portfolio-project-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4);
    border-color: rgba(0, 168, 232, 0.2);
}

.portfolio-project-card-image {
    width: 100%;
    height: 240px;
    object-fit: cover;
    transition: transform 0.6s ease;
}

.portfolio-project-card:hover .portfolio-project-card-image {
    transform: scale(1.05);
}

.portfolio-project-card-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 240px;
    background: linear-gradient(
        180deg,
        transparent 40%,
        rgba(10, 15, 28, 0.8) 100%
    );
    opacity: 0;
    transition: opacity 0.4s ease;
}

.portfolio-project-card:hover .portfolio-project-card-overlay {
    opacity: 1;
}

.portfolio-project-card-content {
    padding: 1.5rem;
}

.portfolio-project-card-category {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    background: rgba(0, 168, 232, 0.15);
    color: var(--portfolio-blue);
    border-radius: 50px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 0.75rem;
}

.portfolio-project-card-title {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    color: white;
    line-height: 1.3;
}

.portfolio-project-card-summary {
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.85);
    line-height: 1.5;
    margin-bottom: 1rem;
}

.portfolio-project-card-tools {
    display: flex;
    flex-wrap: wrap;
    gap: 0.375rem;
}

.portfolio-project-card-tool {
    padding: 0.2rem 0.5rem;
    background: rgba(255, 255, 255, 0.12);
    border-radius: 4px;
    font-size: 0.7rem;
    color: rgba(255, 255, 255, 0.85);
    font-weight: 500;
}

/* Featured badge */
.portfolio-project-featured-badge {
    position: absolute;
    top: 1rem;
    right: 1rem;
    padding: 0.25rem 0.75rem;
    background: var(--portfolio-gradient-pink);
    color: white;
    border-radius: 50px;
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    z-index: 2;
}