/* ==================================
   PORTFOLIO COMPONENT SYSTEM STYLES
   ================================== */

/* Base portfolio components that can be reused across pages */

/* Portfolio Grid Variations */
.portfolio-grid--2-col {
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
}

.portfolio-grid--3-col {
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
}

.portfolio-grid--4-col {
    grid-template-columns: repeat(4, 1fr);
    gap: 1rem;
}

.portfolio-grid--5-col {
    grid-template-columns: repeat(5, 1fr);
    gap: 1rem;
}

/* Portfolio Card Variations */
.portfolio-card--compact {
    background: white;
    border-radius: 1rem;
    overflow: hidden;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}

.portfolio-card--compact:hover {
    transform: translateY(-4px);
    box-shadow: 0 10px 20px -5px rgba(0, 0, 0, 0.15);
}

.portfolio-card--compact .portfolio-image {
    height: 180px;
    position: relative;
    overflow: hidden;
}

.portfolio-card--compact .portfolio-content {
    padding: 1rem;
}

.portfolio-card--compact .portfolio-title {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: #1f2937;
    line-height: 1.4;
}

.portfolio-card--compact .student-info {
    font-size: 0.875rem;
    color: #6b7280;
    margin-bottom: 0.75rem;
}

.portfolio-card--compact .portfolio-description {
    font-size: 0.875rem;
    color: #4b5563;
    line-height: 1.5;
    margin-bottom: 1rem;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.portfolio-card--compact .portfolio-actions {
    margin-top: auto;
}

.portfolio-card--compact .view-portfolio-btn {
    font-size: 0.875rem;
    padding: 0.5rem 1rem;
    background: linear-gradient(135deg, #dc2626 0%, #b91c1c 100%);
    color: white;
    text-decoration: none;
    border-radius: 0.5rem;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    transition: all 0.3s ease;
    font-weight: 500;
}

.portfolio-card--compact .view-portfolio-btn:hover {
    background: linear-gradient(135deg, #b91c1c 0%, #991b1b 100%);
    transform: translateY(-1px);
}

/* Minimal Card Variation */
.portfolio-card--minimal {
    background: transparent;
    border: none;
    box-shadow: none;
}

.portfolio-card--minimal .portfolio-image {
    border-radius: 0.75rem;
    overflow: hidden;
}

.portfolio-card--minimal .portfolio-content {
    padding: 1rem 0;
    text-align: center;
}

.portfolio-card--minimal .portfolio-title {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.portfolio-card--minimal .student-info {
    font-size: 0.875rem;
    color: #6b7280;
}

/* Portfolio Showcase Component */
.portfolio-showcase {
    margin: 3rem 0;
}

.showcase-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
}

.showcase-header h3 {
    font-size: 1.875rem;
    font-weight: 700;
    color: #1f2937;
    margin: 0;
}

.view-all-link {
    color: #dc2626;
    text-decoration: none;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    transition: all 0.3s ease;
}

.view-all-link:hover {
    color: #b91c1c;
    transform: translateX(4px);
}

/* Course Filters Component */
.course-filters {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-bottom: 2rem;
    padding: 1rem;
    background: #f9fafb;
    border-radius: 1rem;
    overflow-x: auto;
}

.course-tab {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.25rem;
    background: white;
    border: 2px solid #e5e7eb;
    border-radius: 2rem;
    font-weight: 600;
    color: #6b7280;
    cursor: pointer;
    transition: all 0.3s ease;
    white-space: nowrap;
    font-size: 0.875rem;
}

.course-tab:hover {
    border-color: #dc2626;
    color: #dc2626;
    transform: translateY(-2px);
    box-shadow: 0 4px 8px -2px rgba(220, 38, 38, 0.2);
}

.course-tab.active {
    background: linear-gradient(135deg, var(--course-color, #dc2626) 0%, #b91c1c 100%);
    border-color: var(--course-color, #dc2626);
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 6px 12px -2px rgba(220, 38, 38, 0.3);
}

.course-tab i {
    font-size: 1rem;
}

/* Pagination Component */
.portfolio-pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 0.5rem;
    margin-top: 3rem;
}

.page-btn {
    padding: 0.75rem 1rem;
    border: 1px solid #e5e7eb;
    background: white;
    color: #6b7280;
    border-radius: 0.5rem;
    cursor: pointer;
    transition: all 0.3s ease;
    font-weight: 500;
    min-width: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.page-btn:hover:not(:disabled) {
    border-color: #dc2626;
    color: #dc2626;
}

.page-btn.active {
    background: #dc2626;
    border-color: #dc2626;
    color: white;
}

.page-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.page-btn.prev,
.page-btn.next {
    font-size: 0.875rem;
}

/* Empty State Component */
.portfolio-empty {
    text-align: center;
    padding: 4rem 2rem;
    color: #6b7280;
}

.portfolio-empty i {
    font-size: 3rem;
    margin-bottom: 1rem;
    color: #d1d5db;
}

.portfolio-empty h3 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: #374151;
}

.portfolio-empty p {
    font-size: 1rem;
    color: #6b7280;
}

/* Quick View Component */
.quick-view-btn {
    background: #f3f4f6;
    color: #6b7280;
    border: 1px solid #e5e7eb;
    padding: 0.5rem 1rem;
    border-radius: 0.5rem;
    font-size: 0.875rem;
    cursor: pointer;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    margin-left: 0.5rem;
}

.quick-view-btn:hover {
    background: #e5e7eb;
    color: #374151;
}

/* Responsive Design for Components */
@media (max-width: 1024px) {
    .portfolio-grid--4-col {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .portfolio-grid--5-col {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .course-filters {
        padding: 0.75rem;
    }
    
    .course-tab {
        font-size: 0.8125rem;
        padding: 0.625rem 1rem;
    }
}

@media (max-width: 768px) {
    .portfolio-grid--2-col,
    .portfolio-grid--3-col,
    .portfolio-grid--4-col,
    .portfolio-grid--5-col {
        grid-template-columns: repeat(2, 1fr);
        gap: 1rem;
    }
    
    .showcase-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 1rem;
    }
    
    .course-filters {
        flex-direction: column;
        align-items: stretch;
    }
    
    .course-tab {
        justify-content: center;
        text-align: center;
    }
    
    .portfolio-pagination {
        flex-wrap: wrap;
        gap: 0.25rem;
    }
    
    .page-btn {
        min-width: 40px;
        padding: 0.625rem 0.75rem;
        font-size: 0.875rem;
    }
}

@media (max-width: 480px) {
    .portfolio-grid--2-col,
    .portfolio-grid--3-col,
    .portfolio-grid--4-col,
    .portfolio-grid--5-col {
        grid-template-columns: 1fr;
    }
    
    .showcase-header h3 {
        font-size: 1.5rem;
    }
    
    .course-tab {
        font-size: 0.875rem;
        padding: 0.75rem;
    }
    
    .portfolio-card--compact .portfolio-content {
        padding: 0.875rem;
    }
    
    .portfolio-card--compact .portfolio-title {
        font-size: 0.9375rem;
    }
}

/* Animation Classes */
.portfolio-card.animate-in {
    animation: slideInUp 0.6s ease-out;
}

@keyframes slideInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.course-tab.animate-pulse {
    animation: pulse 0.3s ease-in-out;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.05); }
}

/* Focus States for Accessibility */
.course-tab:focus,
.page-btn:focus,
.quick-view-btn:focus,
.view-portfolio-btn:focus {
    outline: 2px solid #dc2626;
    outline-offset: 2px;
}

.course-tab:focus-visible,
.page-btn:focus-visible,
.quick-view-btn:focus-visible,
.view-portfolio-btn:focus-visible {
    outline: 2px solid #dc2626;
    outline-offset: 2px;
}