/* Portfolio Bento Grid */
.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    grid-auto-rows: 360px;
    gap: 2rem;
    margin-top: 0;
    width: 100%;
    max-width: 1100px;
    margin-left: auto;
    margin-right: auto;
    padding: 0 2rem;
}

.portfolio-item {
    position: relative;
    border-radius: 24px;
    overflow: hidden;
    background: var(--card-bg);
    border: 2px solid rgba(255, 255, 255, 0.03);
    transition: all 0.5s cubic-bezier(0.2, 0.8, 0.2, 1);
    cursor: pointer;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
}

.portfolio-item.col-span-2 {
    grid-column: span 2;
}

.portfolio-img-wrapper {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
}

/* Distinct Gradients for Placeholders */
.portfolio-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 800;
    font-size: 2rem;
    color: rgba(255, 255, 255, 0.15);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    background-size: 200% 200%;
    animation: gradientMove 15s ease infinite;
}

@keyframes gradientMove {
    0% {
        background-position: 0% 50%;
    }

    50% {
        background-position: 100% 50%;
    }

    100% {
        background-position: 0% 50%;
    }
}

.bg-gradient-1 {
    background: linear-gradient(135deg, #0f172a 0%, #1e293b 50%, #334155 100%);
}

.bg-gradient-2 {
    background: linear-gradient(135deg, #1e1b4b 0%, #312e81 50%, #4338ca 100%);
}

.bg-gradient-3 {
    background: linear-gradient(135deg, #3f2c33 0%, #831843 50%, #be185d 100%);
}

.bg-gradient-4 {
    background: linear-gradient(135deg, #022c22 0%, #115e59 50%, #14b8a6 100%);
}

.portfolio-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top,
            rgba(3, 7, 18, 0.95) 0%,
            rgba(3, 7, 18, 0.6) 50%,
            rgba(3, 7, 18, 0.2) 100%);
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    padding: 2rem;
    opacity: 0;
    transition: opacity 0.4s ease;
}

.portfolio-item:hover {
    box-shadow: 0 20px 40px -5px rgba(0, 0, 0, 0.4), 0 0 15px -3px rgba(139, 92, 246, 0.3);
    border-color: rgba(139, 92, 246, 0.4);
    z-index: 10;
}

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

.portfolio-info h3 {
    font-size: 1.75rem;
    font-weight: 700;
    margin-bottom: 0.25rem;
    color: #fff;
    transform: translateY(10px);
    transition: transform 0.4s ease-out;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.5);
}

.portfolio-info span {
    font-size: 0.9rem;
    color: var(--accent-color);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    transform: translateY(20px);
    transition: transform 0.4s ease 0.1s;
    display: block;
}

.portfolio-item:hover .portfolio-info h3,
.portfolio-item:hover .portfolio-info span {
    transform: translateY(0);
}

@media (max-width: 1024px) {
    .portfolio-grid {
        grid-template-columns: 1fr;
        grid-auto-rows: 300px;
    }
}