/* ===========================================
   PORTFOLIO PAGE STYLES
   =========================================== */

/* Portfolio Hero */
.portfolio-hero {
    padding: 6rem 0;
    background: linear-gradient(135deg, var(--gray-50) 0%, var(--gray-100) 100%);
    text-align: center;
}

.portfolio-hero-content {
    max-width: 800px;
    margin: 0 auto;
}

/* Filter Section */
.filter-section {
    padding: 3rem 0 2rem;
    background: var(--white);
    border-bottom: 1px solid var(--gray-200);
}

.filter-buttons {
    display: flex;
    justify-content: center;
    gap: 1rem;
    flex-wrap: wrap;
}

.filter-btn {
    background: var(--white);
    border: 2px solid var(--gray-300);
    color: var(--gray-700);
    padding: 0.75rem 1.5rem;
    border-radius: 50px;
    cursor: pointer;
    font-weight: 500;
    transition: all 0.3s ease;
}

.filter-btn:hover,
.filter-btn.active {
    background: var(--primary-color);
    border-color: var(--primary-color);
    color: var(--white);
    transform: translateY(-2px);
}

/* Portfolio Grid */
.portfolio-grid-section {
    padding: 4rem 0;
    background: var(--white);
}

.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 2rem;
}

.portfolio-item {
    position: relative;
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
    cursor: pointer;
}

.portfolio-item:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.15);
}

.portfolio-image {
    position: relative;
    height: 280px;
    overflow: hidden;
}

.portfolio-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.portfolio-item:hover .portfolio-image img {
    transform: scale(1.05);
}

.portfolio-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.9), rgba(139, 92, 246, 0.9));
    opacity: 0;
    transition: opacity 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

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

.portfolio-content {
    text-align: center;
    color: var(--white);
    padding: 1rem;
}

.portfolio-title {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
    font-weight: 600;
}

.portfolio-category {
    margin-bottom: 1rem;
    opacity: 0.9;
}

.portfolio-link {
    background: var(--white);
    color: var(--primary-color);
    padding: 0.75rem 1.5rem;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
}

.portfolio-link:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(255, 255, 255, 0.3);
}

/* Portfolio Modal */
.portfolio-modal {
    display: none;
    position: fixed;
    z-index: 2000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.8);
}

.portfolio-modal-content {
    background-color: var(--white);
    margin: 2% auto;
    padding: 2rem;
    border-radius: 16px;
    width: 90%;
    max-width: 800px;
    max-height: 90vh;
    overflow-y: auto;
    position: relative;
    animation: modalSlideIn 0.3s ease;
}

.portfolio-modal-close {
    position: absolute;
    right: 1.5rem;
    top: 1.5rem;
    font-size: 2rem;
    cursor: pointer;
    color: var(--gray-500);
    transition: color 0.3s ease;
}

.portfolio-modal-close:hover {
    color: var(--dark-color);
}

/* Results Section */
.results-section {
    padding: 6rem 0;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: var(--white);
}

.results-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.result-card {
    text-align: center;
    padding: 2rem;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 16px;
    backdrop-filter: blur(10px);
    transition: all 0.3s ease;
}

.result-card:hover {
    transform: translateY(-5px);
    background: rgba(255, 255, 255, 0.15);
}

.result-number {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    color: var(--white);
}

.result-label {
    font-size: 1rem;
    opacity: 0.9;
    line-height: 1.4;
}

/* Filter Animation */
.portfolio-item.fade-out {
    opacity: 0;
    transform: scale(0.8);
}

.portfolio-item.fade-in {
    opacity: 1;
    transform: scale(1);
}

/* Responsive Design */
@media (max-width: 1024px) {
    .portfolio-grid {
        grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    }
}

@media (max-width: 768px) {
    .portfolio-hero,
    .portfolio-grid-section,
    .results-section {
        padding: 4rem 0;
    }

    .filter-buttons {
        gap: 0.5rem;
    }

    .filter-btn {
        padding: 0.5rem 1rem;
        font-size: 0.9rem;
    }

    .portfolio-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .results-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1rem;
    }

    .result-card {
        padding: 1.5rem;
    }

    .result-number {
        font-size: 2.5rem;
    }

    .portfolio-modal-content {
        margin: 5% auto;
        padding: 1.5rem;
    }
}

@media (max-width: 480px) {
    .filter-buttons {
        flex-direction: column;
        align-items: center;
    }

    .filter-btn {
        width: 200px;
    }

    .results-grid {
        grid-template-columns: 1fr;
    }

    .portfolio-content {
        padding: 0.5rem;
    }

    .portfolio-title {
        font-size: 1.3rem;
    }
}