.portfolio {
    padding: 100px 0;
    background: var(--bg-dark);
}

.filter-buttons {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 12px;
    margin-bottom: 40px;
}

.filter-btn {
    padding: 10px 24px;
    border-radius: 6px;
    border: 1px solid var(--border);
    background: var(--bg-card);
    color: var(--text-secondary);
    font-family: var(--font-mono);
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition);
}

.filter-btn:hover {
    border-color: var(--cyan);
    color: var(--cyan);
}

.filter-btn.active {
    background: var(--cyan-dim);
    border-color: var(--cyan);
    color: var(--cyan);
    box-shadow: 0 0 15px rgba(0, 240, 255, 0.15);
}

.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 24px;
}

.portfolio-card {
    background: var(--bg-card);
    border-radius: 8px;
    overflow: hidden;
    box-shadow: var(--shadow-card);
    border: 1px solid var(--border);
    border-top: 3px solid transparent;
    transition: border-color 0.4s cubic-bezier(0.15, 0.85, 0.35, 1), box-shadow 0.4s cubic-bezier(0.15, 0.85, 0.35, 1), transform 0.4s cubic-bezier(0.15, 0.85, 0.35, 1);
}

.portfolio-card:hover {
    border-top-color: var(--cyan);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.5), 0 0 20px rgba(0, 240, 255, 0.08);
    transform: translateY(-4px);
}

.portfolio-image {
    position: relative;
    overflow: hidden;
    aspect-ratio: 16 / 10;
    background: var(--bg-elevated);
}

.portfolio-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.7s cubic-bezier(0.15, 0.85, 0.35, 1);
}

.portfolio-card:hover .portfolio-image img {
    transform: scale(1.08);
}

.portfolio-overlay {
    position: absolute;
    inset: 0;
    background: rgba(10, 14, 15, 0.92);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.5s cubic-bezier(0.15, 0.85, 0.35, 1);
    backdrop-filter: blur(0px);
}

.portfolio-card:hover .portfolio-overlay {
    opacity: 1;
    backdrop-filter: blur(4px);
}

.view-btn {
    padding: 12px 28px;
    background: var(--gradient-cyan);
    color: var(--bg-dark);
    border-radius: 6px;
    font-weight: 600;
    font-size: 13px;
    font-family: var(--font-mono);
    transition: all var(--transition);
    display: inline-flex;
    align-items: center;
    gap: 8px;
    box-shadow: 0 0 20px rgba(0, 240, 255, 0.2);
}

.view-btn:hover {
    box-shadow: 0 0 30px rgba(0, 240, 255, 0.4);
    transform: scale(1.05);
    color: var(--bg-dark);
}

.portfolio-info {
    padding: 20px 24px 24px;
}

.portfolio-info h3 {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 8px;
    font-family: var(--font-mono);
}

.portfolio-info p {
    font-size: 13px;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 16px;
}

.tech-stack {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 12px;
}

.tech-tag {
    padding: 4px 12px;
    background: var(--bg-elevated);
    color: var(--text-secondary);
    border-radius: 4px;
    font-size: 11px;
    font-weight: 500;
    font-family: var(--font-mono);
    border: 1px solid var(--border);
}

.deploy-status {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-family: var(--font-mono);
    font-size: 11px;
    color: var(--text-muted);
}

.deploy-status .dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: #27C93F;
    box-shadow: 0 0 8px rgba(39, 201, 63, 0.5);
    animation: pulseDot 2s ease-in-out infinite;
}

@keyframes pulseDot {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

.portfolio-card.hidden {
    display: none;
}

.show-more-wrapper {
    text-align: center;
    margin-top: 40px;
}

.show-more-btn {
    font-family: var(--font-mono);
    font-size: 14px;
}

.show-more-btn.active i {
    transform: rotate(180deg);
}

.show-more-btn i {
    transition: transform 0.4s cubic-bezier(0.15, 0.85, 0.35, 1);
}

.portfolio-card.compact .portfolio-image {
    aspect-ratio: 21 / 9;
}

.portfolio-card.compact .portfolio-info h3 {
    font-size: 14px;
    margin-bottom: 4px;
}

.portfolio-card.compact .portfolio-info p {
    font-size: 11px;
    margin-bottom: 8px;
    line-height: 1.5;
}

.portfolio-card.compact .portfolio-info {
    padding: 10px 14px 14px;
}

.portfolio-card.compact .tech-tag {
    font-size: 9px;
    padding: 2px 8px;
}

.portfolio-card.compact .deploy-status {
    font-size: 10px;
}

.portfolio-grid.expanded {
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 12px;
}

@media (max-width: 768px) {
    .portfolio {
        padding: 60px 0;
    }

    .portfolio-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .filter-buttons {
        gap: 8px;
    }

    .filter-btn {
        padding: 8px 18px;
        font-size: 12px;
    }
}