/* PORTFOLIO SECTION WITH TABS */

.portfolio-section {
    padding: 80px 0;
    background: transparent;
    min-height: 100vh;
    position: relative;
    z-index: 2;
}

.portfolio-subtitle {
    text-align: center;
    font-size: 1.1rem;
    color: #ffffff;
    margin-bottom: 3rem;
    font-weight: 400;
    text-shadow: 0 0 10px rgba(255, 255, 255, 0.5);
}

/* Portfolio Tabs Navigation */
.portfolio-tabs {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-bottom: 3rem;
    flex-wrap: wrap;
}

.tab-btn {
    padding: 12px 30px;
    background: rgba(255, 255, 255, 0.1);
    border: 2px solid rgba(255, 255, 255, 0.2);
    border-radius: 50px;
    font-weight: 600;
    font-size: 0.9rem;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    cursor: pointer;
    transition: all 0.3s ease;
    color: #ffffff;
    backdrop-filter: blur(10px);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.tab-btn:hover {
    background: rgba(0, 0, 0, 0.5);
    color: #ffffff;
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.4);
    border-color: rgba(255, 255, 255, 0.4);
}

.tab-btn.active {
    background: rgba(0, 0, 0, 0.7);
    color: #ffffff;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.5);
    border-color: rgba(255, 255, 255, 0.5);
}

/* Tab Content */
.tab-content {
    display: none;
    animation: fadeIn 0.5s ease;
}

.tab-content.active {
    display: block;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Projects Grid inside Portfolio */
.portfolio-section .projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

/* Awards Grid inside Portfolio */
.portfolio-section .awards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2.5rem;
}

/* Training Grid inside Portfolio */
.portfolio-section .training-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

/* Mobile Responsive */
@media (max-width: 768px) {
    .portfolio-tabs {
        gap: 10px;
    }
    
    .tab-btn {
        padding: 10px 20px;
        font-size: 0.8rem;
    }
    
    .portfolio-subtitle {
        font-size: 1rem;
        padding: 0 20px;
    }
}

@media (max-width: 480px) {
    .tab-btn {
        padding: 8px 15px;
        font-size: 0.75rem;
    }
    
    .portfolio-section .projects-grid,
    .portfolio-section .awards-grid,
    .portfolio-section .training-grid {
        grid-template-columns: 1fr;
    }
}