/* Category Page Styles */

/* Category Header */
.category-header {
    margin-top: 80px;
    padding: 4rem 0 2rem;
    background: var(--background-secondary);
    border-bottom: 1px solid var(--border-color);
}

.category-header h1 {
    font-family: var(--font-family-display);
    font-size: 3rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 1.5rem;
}

.category-description {
    max-width: 800px;
}

.category-description p {
    font-size: 1.125rem;
    line-height: 1.7;
    color: var(--text-secondary);
}

/* Projects Main */
.projects-main {
    padding: 4rem 0;
    min-height: 60vh;
}

/* Projects Grid */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 2rem;
    margin-bottom: 4rem;
}

.project-item {
    background: var(--background-primary);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
    overflow: hidden;
    transition: var(--transition);
    cursor: pointer;
    border: 1px solid var(--border-color);
    position: relative;
}

.project-item:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-color);
}

.project-thumbnail {
    aspect-ratio: 1 / 1;
    overflow: hidden;
    position: relative;
    background: var(--background-secondary);
}

.project-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--background-secondary) 0%, var(--background-tertiary) 100%);
    color: var(--text-light);
    transition: var(--transition);
    text-align: center;
    padding: 2rem;
}

.project-placeholder i {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.project-placeholder .placeholder-title {
    font-size: 1.125rem;
    font-weight: 500;
    margin-bottom: 0.5rem;
    color: var(--text-secondary);
}

.project-placeholder .placeholder-subtitle {
    font-size: 0.875rem;
    color: var(--text-light);
}

.project-item:hover .project-placeholder {
    color: var(--primary-color);
    transform: scale(1.02);
}

.project-item:hover .project-placeholder .placeholder-title {
    color: var(--primary-color);
}

.project-info {
    padding: 1.5rem;
}

.project-info h3 {
    font-family: var(--font-family-display);
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.project-info p {
    color: var(--text-secondary);
    font-size: 0.875rem;
    line-height: 1.5;
}

.project-meta {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-top: 1rem;
    padding-top: 1rem;
    border-top: 1px solid var(--border-color);
}

.project-tag {
    background: var(--background-tertiary);
    color: var(--text-secondary);
    padding: 0.25rem 0.75rem;
    border-radius: 999px;
    font-size: 0.75rem;
    font-weight: 500;
}

.project-date {
    color: var(--text-light);
    font-size: 0.75rem;
    margin-left: auto;
}

/* Loading State */
.projects-loading {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 300px;
    flex-direction: column;
    gap: 1rem;
}

.loading-spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--border-color);
    border-top: 3px solid var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.loading-text {
    color: var(--text-secondary);
    font-size: 1rem;
}

/* Empty State */
.projects-empty {
    text-align: center;
    padding: 4rem 2rem;
    color: var(--text-secondary);
}

.projects-empty i {
    font-size: 4rem;
    color: var(--text-light);
    margin-bottom: 1rem;
}

.projects-empty h3 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
    color: var(--text-secondary);
}

.projects-empty p {
    color: var(--text-light);
}

/* Responsive Design */
@media (max-width: 768px) {
    .category-header {
        padding: 2rem 0 1rem;
    }
    
    .category-header h1 {
        font-size: 2rem;
    }
    
    .category-description p {
        font-size: 1rem;
    }
    
    .projects-main {
        padding: 2rem 0;
    }
    
    .projects-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .project-info {
        padding: 1rem;
    }
}

@media (max-width: 480px) {
    .category-header h1 {
        font-size: 1.75rem;
    }
    
    .projects-grid {
        gap: 1rem;
    }
    
    .project-placeholder {
        padding: 1.5rem;
    }
    
    .project-placeholder i {
        font-size: 2.5rem;
    }
}