/* Portfolio Page Styles */

/* ========================================
   PORTFOLIO SECTION
   ======================================== */

.portfolio-section {
    padding: var(--space-20) 0;
    min-height: calc(100vh - 160px);
    display: flex;
    align-items: flex-start;
    padding-top: var(--space-8);
}

.portfolio-section .container {
    width: 100%;
    max-width: none;
    padding: 0 var(--space-4);
}

/* ========================================
   PORTFOLIO HEADER
   ======================================== */

.portfolio-header {
    text-align: center;
    margin-bottom: var(--space-16);
}

.portfolio-title {
    font-size: var(--text-5xl);
    font-weight: var(--font-bold);
    color: var(--white);
    margin-bottom: var(--space-6);
    line-height: 1.2;
}

.portfolio-title .accent {
    color: var(--primary-color);
}

.portfolio-subtitle {
    font-size: var(--text-xl);
    color: var(--gray-300);
    max-width: 3xl;
    margin: 0 auto;
    line-height: var(--leading-relaxed);
}

/* ========================================
   FILTER SECTION
   ======================================== */

.filter-section {
    margin-bottom: var(--space-12);
}

.filter-buttons {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--space-2);
    margin-bottom: var(--space-12);
}

.filter-button {
    background: transparent;
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
    border-radius: var(--radius-full);
    padding: var(--space-2) var(--space-5);
    font-size: var(--text-sm);
    font-weight: var(--font-medium);
    cursor: pointer;
    transition: all var(--transition-fast);
    text-decoration: none;
}

.filter-button:hover {
    background: var(--primary-color);
    color: var(--white);
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(239, 68, 68, 0.3);
}

.filter-button.active {
    background: var(--primary-color);
    color: var(--white);
}

/* ========================================
   PROJECTS GRID
   ======================================== */

.projects-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-6);
    margin-bottom: var(--space-16);
}

.project-card {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all var(--transition-normal);
    cursor: pointer;
    height: 100%;
    display: flex;
    flex-direction: column;
}

.project-card-link {
    text-decoration: none;
    color: inherit;
    display: block;
    height: 100%;
    transition: all var(--transition-normal);
}

.project-card-link:hover {
    text-decoration: none;
    color: inherit;
}

.project-card-link:hover .project-card {
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
    border-color: var(--primary-color);
}

.project-image {
    width: 100%;
    height: 200px;
    object-fit: cover;
    transition: transform var(--transition-fast);
}

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

.project-content {
    padding: var(--space-6);
}

.project-title {
    font-size: var(--text-lg);
    font-weight: var(--font-semibold);
    color: var(--white);
    margin-bottom: var(--space-2);
    line-height: var(--leading-tight);
}

.project-description {
    font-size: var(--text-sm);
    color: var(--gray-400);
    margin-bottom: var(--space-4);
    line-height: var(--leading-relaxed);
}

.project-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2);
}

.project-tag {
    background: rgba(239, 68, 68, 0.1);
    color: var(--primary-color);
    padding: var(--space-1) var(--space-3);
    border-radius: var(--radius-full);
    font-size: var(--text-xs);
    font-weight: var(--font-medium);
}

/* ========================================
   RESPONSIVE DESIGN
   ======================================== */

@media (max-width: 1024px) {
    .portfolio-section {
        padding: var(--space-16) 0;
    }
    
    .portfolio-header {
        margin-bottom: var(--space-12);
    }
    
    .portfolio-title {
        font-size: var(--text-4xl);
    }
    
    .portfolio-subtitle {
        font-size: var(--text-lg);
    }
    
    .projects-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: var(--space-4);
    }
}

@media (max-width: 768px) {
    .portfolio-section {
        padding: var(--space-12) 0;
    }
    
    .portfolio-header {
        margin-bottom: var(--space-8);
    }
    
    .portfolio-title {
        font-size: var(--text-3xl);
    }
    
    .portfolio-subtitle {
        font-size: var(--text-base);
    }
    
    .filter-buttons {
        gap: var(--space-2);
        margin-bottom: var(--space-8);
    }
    
    .filter-button {
        padding: var(--space-1) var(--space-3);
        font-size: var(--text-xs);
    }
    
    .projects-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--space-4);
    }
    
    .project-image {
        height: 150px;
    }
    
    .project-content {
        padding: var(--space-4);
    }
}

@media (max-width: 480px) {
    .portfolio-section {
        padding: var(--space-8) 0;
    }
    
    .portfolio-header {
        margin-bottom: var(--space-6);
    }
    
    .portfolio-title {
        font-size: var(--text-2xl);
    }
    
    .portfolio-subtitle {
        font-size: var(--text-sm);
    }
    
    .projects-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--space-3);
    }
    
    .project-image {
        height: 120px;
    }
    
    .project-content {
        padding: var(--space-3);
    }
}

/* ========================================
   DARK MODE SUPPORT
   ======================================== */

@media (prefers-color-scheme: dark) {
    .project-card {
        background: rgba(0, 0, 0, 0.3);
        border-color: rgba(255, 255, 255, 0.05);
    }
    
    .project-card:hover {
        border-color: var(--primary-color);
    }
}

/* ========================================
   ACCESSIBILITY
   ======================================== */

@media (prefers-reduced-motion: reduce) {
    .project-card:hover,
    .filter-button:hover,
    .project-image {
        transform: none;
    }
    
    .project-card,
    .filter-button,
    .project-image {
        transition: none;
    }
}

/* Focus styles */
.filter-button:focus,
.project-card:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}