/* ========== RESET & BASE ========== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Light Color Theme */
    --color-bg: #FFFFFF;
    --color-bg-secondary: #F8F9FA;
    --color-bg-tertiary: #F0F2F5;
    
    --color-primary: #1565C0;
    --color-primary-light: #1976D2;
    --color-primary-dark: #0D47A1;
    
    --color-secondary: #00897B;
    --color-accent: #FF7043;
    
    --color-text: #2C3E50;
    --color-text-light: #5A6C7D;
    --color-text-lighter: #8492A6;
    
    --color-border: #E0E4E8;
    --color-shadow: rgba(0, 0, 0, 0.08);
    
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 3rem;
    --spacing-xl: 4rem;
    
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    
    --transition: all 0.3s ease;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    line-height: 1.6;
    color: var(--color-text);
    background: var(--color-bg);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* ========== NAVIGATION ========== */
.navbar {
    background: var(--color-bg);
    padding: var(--spacing-sm) 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 8px var(--color-shadow);
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-brand h2 {
    color: var(--color-primary);
    font-size: 1.5rem;
    margin-bottom: 0.25rem;
}

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

.nav-menu {
    display: flex;
    list-style: none;
    gap: var(--spacing-md);
}

.nav-menu a {
    color: var(--color-text);
    text-decoration: none;
    font-weight: 500;
    padding: 0.5rem 1rem;
    border-radius: var(--radius-md);
    transition: var(--transition);
}

.nav-menu a:hover {
    background: var(--color-bg-secondary);
    color: var(--color-primary);
}








.apply-btn {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white !important;
    padding: 8px 20px;
    border-radius: 25px;
    font-weight: 600;
    transition: all 0.3s ease;
}

.apply-btn:hover {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%) !important;
    color: white !important;
    transform: scale(1.05);
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.3);
}







/* ========== HERO SECTION ========== */
.hero {
    padding: var(--spacing-xl) 0;
    background: linear-gradient(135deg, var(--color-bg-secondary) 0%, var(--color-bg) 100%);
}

.hero-content {
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: var(--spacing-lg);
    align-items: center;
}

.hero-text h1 {
    font-size: 2.5rem;
    color: var(--color-primary-dark);
    margin-bottom: var(--spacing-sm);
    line-height: 1.2;
}

.hero-text p {
    font-size: 1.125rem;
    color: var(--color-text-light);
    margin-bottom: var(--spacing-md);
}

.hero-stats {
    display: flex;
    gap: var(--spacing-lg);
    margin: var(--spacing-md) 0;
}

.stat-item {
    text-align: center;
}

.stat-number {
    font-size: 2rem;
    font-weight: 700;
    color: var(--color-primary);
}

.stat-label {
    font-size: 0.875rem;
    color: var(--color-text-light);
    margin-top: 0.25rem;
}

.profile-card {
    background: var(--color-bg);
    padding: var(--spacing-md);
    border-radius: var(--radius-lg);
    box-shadow: 0 4px 16px var(--color-shadow);
    text-align: center;
}

.profile-image {
    width: 180px;
    height: 180px;
    border-radius: 50%;
    background: var(--color-bg-secondary);
    margin: 0 auto var(--spacing-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 5rem;
    color: var(--color-primary);
    overflow: hidden; /* 🟢 hides anything outside the circle */
    position: relative; /* keeps image positioned inside */
}

.profile-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;    /* 🟢 fills container without distortion */
    object-position: center;
    display: block;
    border-radius: 50%;   /* optional: ensures perfect round crop */
}





.social-links {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-top: 15px;
    margin-bottom: 10px;
}

.social-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: #f0f0f0;
    transition: all 0.3s ease;
}

.social-icon:hover {
    transform: translateY(-3px);
    box-shadow: 0 4px 8px rgba(0,0,0,0.2);
}

.social-icon svg {
    display: block;
}









/* .team-member h4, .alumni-item h4 {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.linkedin-link {
    margin-left: auto;
    transition: transform 0.2s ease;
}

.linkedin-link:hover {
    transform: scale(1.1);
} */


.team-member h4, .alumni-item h4 {
    display: flex;
    align-items: center;
    gap: 10px; /* Space between name and icon */
}

.linkedin-link {
    display: inline-flex;
    transition: transform 0.2s ease;
}

.linkedin-link:hover {
    transform: scale(1.1);
}

.linkedin-link svg {
    display: block;
}



.profile-card h3 {
    font-size: 1.5rem;
    color: var(--color-primary-dark);
    margin-bottom: 0.5rem;
}

.profile-card p {
    color: var(--color-text-light);
    font-size: 0.9rem;
}

/* ========== NEWS SECTION ========== */





.news-container {
    max-height: 400px; /* Adjust this height as needed */
    overflow-y: auto;
    padding-right: 10px;
    scrollbar-width: thin;
    scrollbar-color: #667eea #f1f1f1;
}

/* Custom scrollbar for webkit browsers (Chrome, Safari, Edge) */
.news-container::-webkit-scrollbar {
    width: 8px;
}

.news-container::-webkit-scrollbar-track {
    background: #f1f1f1;
    border-radius: 10px;
}

.news-container::-webkit-scrollbar-thumb {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 10px;
}

.news-container::-webkit-scrollbar-thumb:hover {
    background: #764ba2;
}









.news-section {
    padding: var(--spacing-md) 0;
    background: var(--color-bg-tertiary);
    border-top: 1px solid var(--color-border);
    border-bottom: 1px solid var(--color-border);
}

.news-section h2 {
    margin-bottom: var(--spacing-sm);
    color: var(--color-primary-dark);
}

.news-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm);
    background: var(--color-bg);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-sm);
}

.news-date {
    font-weight: 600;
    color: var(--color-primary);
    min-width: 100px;
}

.news-text {
    color: var(--color-text);
}

/* ========== SECTIONS ========== */
section {
    padding: var(--spacing-xl) 0;
}

section h2 {
    font-size: 2rem;
    color: var(--color-primary-dark);
    margin-bottom: var(--spacing-md);
    text-align: center;
}

section h3 {
    font-size: 1.5rem;
    color: var(--color-primary);
    margin: var(--spacing-md) 0;
}

/* ========== CARDS & GRIDS ========== */
.research-grid,
.projects-grid,
.team-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-md);
}

.research-card,
.project-card,
.team-member {
    background: var(--color-bg);
    padding: var(--spacing-md);
    border-radius: var(--radius-lg);
    box-shadow: 0 2px 12px var(--color-shadow);
    transition: var(--transition);
}

.research-card:hover,
.project-card:hover,
.team-member:hover {
    transform: translateY(-4px);
    box-shadow: 0 4px 20px var(--color-shadow);
}

.research-card h3,
.project-card h4,
.team-member h4 {
    color: var(--color-primary-dark);
    margin-bottom: var(--spacing-sm);
}

.research-card p,
.project-card p,
.team-member p {
    color: var(--color-text-light);
    font-size: 0.95rem;
}

/* ========== STATUS BADGES ========== */
.status-ongoing {
    background: #4CAF50;
    color: white;
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
}

.status-completed {
    background: #2196F3;
    color: white;
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
}

/* ========== PUBLICATIONS ========== */
.pub-filters {
    display: flex;
    gap: var(--spacing-sm);
    justify-content: center;
    margin-bottom: var(--spacing-md);
}

.filter-btn {
    padding: 0.5rem 1.5rem;
    border: 2px solid var(--color-border);
    background: var(--color-bg);
    border-radius: 20px;
    cursor: pointer;
    transition: var(--transition);
    font-weight: 500;
}

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

.pub-year {
    font-size: 1.75rem;
    color: var(--color-primary);
    margin: var(--spacing-lg) 0 var(--spacing-sm);
    padding-bottom: 0.5rem;
    border-bottom: 3px solid var(--color-primary);
}

.pub-item {
    background: var(--color-bg);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-sm);
    border-left: 4px solid var(--color-secondary);
}

.pub-badge {
    display: inline-block;
    background: var(--color-secondary);
    color: white;
    padding: 0.25rem 0.75rem;
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.pub-item h4 {
    color: var(--color-primary-dark);
    margin: 0.5rem 0;
}

.pub-authors {
    color: var(--color-text);
    font-size: 0.9rem;
    margin: 0.25rem 0;
}

.pub-venue {
    color: var(--color-text-light);
    font-style: italic;
    font-size: 0.9rem;
}

.pub-item a {
    color: var(--color-primary);
    text-decoration: none;
    font-weight: 500;
}

.pub-item a:hover {
    text-decoration: underline;
}

/* ========== TEAM SECTION ========== */
.alumni-list {
    display: grid;
    gap: var(--spacing-sm);
}

.alumni-item {
    background: var(--color-bg);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    box-shadow: 0 2px 8px var(--color-shadow);
}

.alumni-item h4 {
    color: var(--color-primary-dark);
    margin-bottom: 0.5rem;
}

.alumni-item p {
    color: var(--color-text-light);
    font-size: 0.9rem;
    margin: 0.25rem 0;
}

/* ========== CONTACT SECTION ========== */
.contact-info {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-md);
}

.contact-card {
    background: var(--color-bg);
    padding: var(--spacing-md);
    border-radius: var(--radius-lg);
    box-shadow: 0 2px 12px var(--color-shadow);
    text-align: center;
}

.contact-card h4 {
    color: var(--color-primary);
    margin-bottom: var(--spacing-sm);
}

.contact-card p {
    color: var(--color-text-light);
    font-size: 0.95rem;
}

/* ========== FOOTER ========== */
.footer {
    background: var(--color-primary-dark);
    color: white;
    padding: var(--spacing-md) 0;
    text-align: center;
    margin-top: var(--spacing-xl);
}

.footer p {
    color: rgba(255, 255, 255, 0.8);
    font-size: 0.9rem;
}

/* ========== RESPONSIVE ========== */
@media (max-width: 768px) {
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero-text h1 {
        font-size: 2rem;
    }
    
    .nav-menu {
        flex-direction: column;
        gap: var(--spacing-xs);
    }
    
    .research-grid,
    .projects-grid {
        grid-template-columns: 1fr;
    }
    
    .hero-stats {
        justify-content: center;
    }
}