/* Research Page Specific Styles */

/* Research Hero Section */
.research-hero {
    min-height: 70vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-24) 0;
    position: relative;
    text-align: center;
}

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

.research-title {
    font-size: 4rem;
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: var(--space-6);
    background: linear-gradient(45deg, var(--primary-600), var(--primary-400));
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-size: 200% 200%;
    animation: gradientShift 3s ease-in-out infinite;
}

.research-subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: var(--space-12);
    line-height: 1.6;
}

.research-stats {
    display: flex;
    justify-content: center;
    gap: var(--space-8);
    margin-top: var(--space-8);
}

.stat-item {
    text-align: center;
    padding: var(--space-4);
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    transition: all var(--transition-normal);
}

.stat-item:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-300);
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--primary-600);
    margin-bottom: var(--space-1);
}

.stat-label {
    font-size: 0.875rem;
    color: var(--text-tertiary);
    font-weight: 500;
}

/* Research Projects Section */
.research-projects {
    padding: var(--space-24) 0;
}

.projects-timeline {
    position: relative;
    margin-top: var(--space-16);
}

.project-card {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-8);
    align-items: center;
    margin-bottom: var(--space-16);
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-2xl);
    padding: var(--space-8);
    box-shadow: var(--shadow-lg);
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.project-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(45deg, var(--primary-500), var(--primary-600));
}

.project-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-2xl);
    border-color: var(--primary-300);
}

.project-card:nth-child(even) {
    grid-template-columns: 1fr 1fr;
}

.project-card:nth-child(even) .project-image {
    order: 2;
}

.project-card:nth-child(even) .project-content {
    order: 1;
}

.project-image {
    position: relative;
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-md);
}

.project-image img {
    width: 100%;
    height: 300px;
    object-fit: cover;
    transition: all var(--transition-normal);
}

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

.project-content {
    padding: var(--space-4);
}

.project-header {
    margin-bottom: var(--space-4);
}

.project-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--space-2);
    line-height: 1.3;
}

.project-type {
    display: inline-block;
    background: linear-gradient(45deg, var(--primary-500), var(--primary-600));
    color: white;
    padding: var(--space-1) var(--space-3);
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.project-description {
    font-size: 1rem;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: var(--space-6);
}

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

.keyword {
    background: var(--bg-tertiary);
    color: var(--text-primary);
    padding: var(--space-1-5) var(--space-3);
    border-radius: var(--radius-full);
    font-size: 0.875rem;
    font-weight: 500;
    border: 1px solid var(--border-color);
    transition: all var(--transition-normal);
    cursor: pointer;
}

.keyword:hover {
    background: var(--primary-500);
    color: white;
    border-color: var(--primary-500);
    transform: translateY(-1px);
}

/* Research Areas Section (if needed) */
.research-areas {
    padding: var(--space-24) 0;
    background: var(--bg-secondary);
}

.research-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--space-8);
    margin-top: var(--space-16);
}

.research-card {
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-2xl);
    padding: var(--space-8);
    box-shadow: var(--shadow-lg);
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.research-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(45deg, var(--primary-500), var(--primary-600));
}

.research-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-2xl);
    border-color: var(--primary-300);
}

.research-card-header {
    display: flex;
    align-items: center;
    gap: var(--space-4);
    margin-bottom: var(--space-6);
}

.research-icon {
    width: 48px;
    height: 48px;
    background: linear-gradient(45deg, var(--primary-500), var(--primary-600));
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.25rem;
    transition: all var(--transition-normal);
}

.research-card:hover .research-icon {
    transform: scale(1.1) rotate(5deg);
}

.research-card-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
    line-height: 1.3;
}

.research-description {
    font-size: 1rem;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: var(--space-6);
}

.research-keywords {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2);
}

/* Research Philosophy Section */
.research-philosophy {
    padding: var(--space-24) 0;
}

.philosophy-content {
    text-align: center;
    max-width: 1000px;
    margin: 0 auto;
}

.philosophy-title {
    font-size: 3rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--space-16);
    position: relative;
    display: inline-block;
}

.philosophy-title::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background: linear-gradient(45deg, var(--primary-500), var(--primary-600));
    border-radius: var(--radius-full);
}

.philosophy-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--space-8);
}

.philosophy-item {
    text-align: center;
    padding: var(--space-6);
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    transition: all var(--transition-normal);
}

.philosophy-item:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-300);
}

.philosophy-icon {
    width: 64px;
    height: 64px;
    background: linear-gradient(45deg, var(--primary-500), var(--primary-600));
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.5rem;
    margin: 0 auto var(--space-4);
    transition: all var(--transition-normal);
}

.philosophy-item:hover .philosophy-icon {
    transform: scale(1.1);
}

.philosophy-item h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--space-3);
}

.philosophy-item p {
    font-size: 0.875rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* Responsive Design */
@media (max-width: 768px) {
    .research-title {
        font-size: 2.5rem;
    }
    
    .research-subtitle {
        font-size: 1.125rem;
    }
    
    .research-stats {
        flex-direction: column;
        gap: var(--space-4);
    }
    
    .project-card {
        grid-template-columns: 1fr;
        gap: var(--space-6);
    }
    
    .project-card:nth-child(even) {
        grid-template-columns: 1fr;
    }
    
    .project-card:nth-child(even) .project-image {
        order: 1;
    }
    
    .project-card:nth-child(even) .project-content {
        order: 2;
    }
    
    .project-image img {
        height: 250px;
    }
    
    .research-grid {
        grid-template-columns: 1fr;
        gap: var(--space-6);
    }
    
    .philosophy-title {
        font-size: 2rem;
    }
    
    .philosophy-grid {
        grid-template-columns: 1fr;
        gap: var(--space-6);
    }
}

@media (max-width: 480px) {
    .research-title {
        font-size: 2rem;
    }
    
    .research-subtitle {
        font-size: 1rem;
    }
    
    .stat-number {
        font-size: 2rem;
    }
    
    .project-card {
        padding: var(--space-6);
        margin-bottom: var(--space-12);
    }
    
    .project-title {
        font-size: 1.25rem;
    }
    
    .project-image img {
        height: 200px;
    }
    
    .keyword {
        font-size: 0.75rem;
        padding: var(--space-1) var(--space-2);
    }
}