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

:root {
    /* Light Theme Colors */
    --bg-primary: #ffffff;
    --bg-secondary: #f8f9fa;
    --bg-tertiary: #f1f3f5;
    --text-primary: #212529;
    --text-secondary: #495057;
    --text-muted: #6c757d;
    --accent-primary: #0066cc;
    --accent-secondary: #0038b8;
    --accent-india: #ff9933;
    --accent-israel: #0038b8;
    --border-color: #dee2e6;
    --card-bg: #ffffff;
    --card-shadow: 0 10px 30px -15px rgba(0, 0, 0, 0.1);
    --hover-shadow: 0 20px 40px -15px rgba(0, 0, 0, 0.2);
    --gradient-primary: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
    --gradient-india: linear-gradient(135deg, #ff9933, #138808);
    --gradient-israel: linear-gradient(135deg, #0038b8, #00a3cc);
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-mono: 'JetBrains Mono', monospace;
}

[data-theme="dark"] {
    --bg-primary: #0a0c10;
    --bg-secondary: #1a1e24;
    --bg-tertiary: #2d333b;
    --text-primary: #e9ecef;
    --text-secondary: #ced4da;
    --text-muted: #adb5bd;
    --accent-primary: #4da6ff;
    --accent-secondary: #66b0ff;
    --border-color: #2d333b;
    --card-bg: #1a1e24;
    --card-shadow: 0 10px 30px -15px rgba(0, 0, 0, 0.5);
    --hover-shadow: 0 20px 40px -15px rgba(0, 0, 0, 0.7);
}

/* ========== BASE STYLES ========== */
html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
}

body {
    font-family: var(--font-primary);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    transition: background-color 0.3s, color 0.3s;
    overflow-x: hidden;
}

/* ========== PROGRESS BAR ========== */
.progress-bar {
    position: fixed;
    top: 0;
    left: 0;
    height: 3px;
    background: var(--gradient-primary);
    width: 0%;
    z-index: 1000;
    transition: width 0.1s;
}

/* ========== NAVIGATION ========== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background-color: var(--bg-primary);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    background-color: rgba(var(--bg-primary), 0.8);
    padding: 1rem 5%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    z-index: 100;
    border-bottom: 1px solid var(--border-color);
    transition: all 0.3s;
}

.navbar.scrolled {
    padding: 0.5rem 5%;
    box-shadow: var(--card-shadow);
}

.nav-brand {
    display: flex;
    flex-direction: column;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin: 0;
}

.nav-location {
    font-size: 0.8rem;
    color: var(--text-muted);
}

.nav-location i {
    margin-right: 0.3rem;
    color: var(--accent-primary);
}

.nav-menu {
    display: flex;
    gap: 2rem;
    list-style: none;
}

.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.95rem;
    font-weight: 500;
    transition: color 0.3s;
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    transition: width 0.3s;
}

.nav-link:hover,
.nav-link.active {
    color: var(--accent-primary);
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 100%;
}

.nav-right {
    display: flex;
    gap: 1rem;
    align-items: center;
}

.theme-toggle,
.mobile-menu-btn {
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: 1.2rem;
    cursor: pointer;
    padding: 0.5rem;
    border-radius: 50%;
    transition: all 0.3s;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.theme-toggle:hover,
.mobile-menu-btn:hover {
    background-color: var(--bg-tertiary);
    color: var(--accent-primary);
}

.mobile-menu-btn {
    display: none;
}

.mobile-menu {
    position: fixed;
    top: 70px;
    left: 0;
    right: 0;
    background-color: var(--bg-primary);
    padding: 2rem;
    transform: translateY(-150%);
    transition: transform 0.3s;
    z-index: 99;
    border-bottom: 1px solid var(--border-color);
}

.mobile-menu.active {
    transform: translateY(0);
}

.mobile-menu ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.mobile-menu a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 1.2rem;
    font-weight: 500;
}

/* ========== HERO SECTION ========== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    padding: 0 5%;
    margin-top: 60px;
}

.hero-content {
    display: flex;
    align-items: center;
    gap: 4rem;
    max-width: 1200px;
    margin: 0 auto;
}

.hero-image-wrapper {
    position: relative;
    width: 300px;
    height: 300px;
}

.hero-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 50%;
    border: 4px solid var(--accent-primary);
    position: relative;
    z-index: 2;
}

.hero-image-glow {
    position: absolute;
    top: -10px;
    left: -10px;
    right: -10px;
    bottom: -10px;
    border-radius: 50%;
    background: var(--gradient-primary);
    opacity: 0.3;
    filter: blur(20px);
    z-index: 1;
    animation: glowPulse 3s infinite;
}

@keyframes glowPulse {
    0%, 100% { opacity: 0.3; filter: blur(20px); }
    50% { opacity: 0.5; filter: blur(25px); }
}

.hero-text {
    flex: 1;
}

.greeting {
    display: block;
    font-size: 1.2rem;
    color: var(--accent-primary);
    margin-bottom: 0.5rem;
}

.name {
    font-size: 3.5rem;
    font-weight: 700;
    line-height: 1.2;
    display: block;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 1rem;
}

.hero-subtitle {
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
    min-height: 4rem;
}

.typed-text {
    color: var(--text-secondary);
}

.cursor {
    display: inline-block;
    width: 3px;
    background-color: var(--accent-primary);
    animation: blink 1s infinite;
}

@keyframes blink {
    0%, 50% { opacity: 1; }
    51%, 100% { opacity: 0; }
}

.hero-badges {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    margin-bottom: 2rem;
}

.badge {
    padding: 0.5rem 1rem;
    border-radius: 50px;
    font-size: 0.9rem;
    font-weight: 500;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.badge i {
    font-size: 1rem;
}

.badge.israel {
    background: linear-gradient(135deg, #0038b8, #0066cc);
    color: white;
}

.badge.india {
    background: linear-gradient(135deg, #ff9933, #138808);
    color: white;
}

.badge.research {
    background: var(--bg-tertiary);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.hero-actions {
    display: flex;
    gap: 1rem;
}

.btn {
    padding: 0.8rem 2rem;
    border-radius: 50px;
    font-size: 1rem;
    font-weight: 500;
    text-decoration: none;
    transition: all 0.3s;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.btn-primary {
    background: var(--gradient-primary);
    color: white;
    border: none;
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 20px rgba(0, 102, 204, 0.3);
}

.btn-outline {
    border: 2px solid var(--accent-primary);
    color: var(--accent-primary);
    background: transparent;
}

.btn-outline:hover {
    background: var(--accent-primary);
    color: white;
    transform: translateY(-3px);
}

.hero-scroll-indicator {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    text-align: center;
    color: var(--text-muted);
    font-size: 0.9rem;
    animation: bounce 2s infinite;
}

.hero-scroll-indicator i {
    display: block;
    margin-top: 0.5rem;
}

@keyframes bounce {
    0%, 100% { transform: translateX(-50%) translateY(0); }
    50% { transform: translateX(-50%) translateY(10px); }
}

/* ========== SECTIONS ========== */
.section {
    padding: 100px 5%;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
}

.section-title {
    font-size: 2rem;
    margin-bottom: 3rem;
    display: flex;
    align-items: center;
    gap: 1rem;
}

.section-number {
    font-family: var(--font-mono);
    color: var(--accent-primary);
    font-size: 1.2rem;
}

.section-name {
    font-weight: 700;
    position: relative;
}

.section-name::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 0;
    width: 70px;
    height: 4px;
    background: var(--gradient-primary);
    border-radius: 2px;
}

/* ========== ABOUT SECTION ========== */
.about-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 3rem;
}

.about-text .lead {
    font-size: 1.2rem;
    color: var(--accent-primary);
    margin-bottom: 1.5rem;
}

.about-text p {
    margin-bottom: 1.5rem;
    color: var(--text-secondary);
}

.research-statement {
    background: var(--bg-tertiary);
    padding: 1.5rem;
    border-radius: 10px;
    margin: 2rem 0;
    border-left: 4px solid var(--accent-primary);
}

.research-statement h3 {
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.interests-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: 1rem;
    margin: 2rem 0;
}

.interest-item {
    background: var(--bg-tertiary);
    padding: 1rem;
    border-radius: 10px;
    text-align: center;
    transition: transform 0.3s;
}

.interest-item:hover {
    transform: translateY(-5px);
    background: var(--accent-primary);
    color: white;
}

.interest-item i {
    display: block;
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

/* ========== FIXED ABOUT QUOTE STYLING ========== */
.about-quote {
    background: linear-gradient(135deg, rgba(100, 108, 255, 0.08), rgba(50, 50, 100, 0.05));
    border-left: 4px solid #646cff;
    padding: 1.5rem 2rem;
    margin-top: 2rem;
    border-radius: 12px;
    position: relative;
    display: flex;
    gap: 1rem;
}

.about-quote i {
    font-size: 2rem;
    color: #646cff;
    opacity: 0.4;
}

.about-quote p {
    font-style: italic;
    font-size: 1rem;
    line-height: 1.6;
    margin: 0;
    color: var(--text-secondary);
}

.about-stats {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
    align-content: start;
}

.stat-card {
    background: var(--card-bg);
    padding: 2rem;
    border-radius: 10px;
    text-align: center;
    box-shadow: var(--card-shadow);
    transition: transform 0.3s;
}

.stat-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--hover-shadow);
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--accent-primary);
    margin-bottom: 0.5rem;
}

.stat-label {
    color: var(--text-muted);
    font-size: 0.9rem;
}

/* ========== TIMELINE (EDUCATION) ========== */
.timeline {
    position: relative;
    padding-left: 3rem;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--gradient-primary);
}

.timeline-item {
    position: relative;
    margin-bottom: 3rem;
}

.timeline-dot {
    position: absolute;
    left: -3.5rem;
    top: 0;
    width: 1rem;
    height: 1rem;
    border-radius: 50%;
    background: var(--accent-primary);
    border: 3px solid var(--bg-primary);
    box-shadow: 0 0 0 3px var(--accent-primary);
}

.timeline-item.current .timeline-dot {
    background: #00ff88;
    box-shadow: 0 0 20px #00ff88;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { box-shadow: 0 0 0 3px var(--accent-primary), 0 0 20px #00ff88; }
    50% { box-shadow: 0 0 0 3px var(--accent-primary), 0 0 40px #00ff88; }
}

.timeline-date {
    font-size: 1rem;
    color: var(--accent-primary);
    font-family: var(--font-mono);
    margin-bottom: 0.5rem;
}

.timeline-content {
    background: var(--card-bg);
    padding: 1.5rem;
    border-radius: 10px;
    box-shadow: var(--card-shadow);
}

.timeline-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.5rem;
}

.timeline-header h3 {
    color: var(--text-primary);
}

.university-badge {
    padding: 0.3rem 1rem;
    border-radius: 50px;
    font-size: 0.8rem;
    font-weight: 500;
}

.university-badge.israel {
    background: var(--gradient-israel);
    color: white;
}

.university-badge.india {
    background: var(--gradient-india);
    color: white;
}

.timeline-detail,
.timeline-research {
    color: var(--text-secondary);
    margin: 0.5rem 0;
}

.timeline-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: 1rem;
}

.timeline-tags span {
    background: var(--bg-tertiary);
    color: var(--text-secondary);
    padding: 0.2rem 0.8rem;
    border-radius: 50px;
    font-size: 0.8rem;
}

/* ========== RESEARCH CARDS ========== */
.research-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
}

.research-card {
    background: var(--card-bg);
    padding: 2rem;
    border-radius: 15px;
    box-shadow: var(--card-shadow);
    transition: all 0.3s;
    position: relative;
    overflow: hidden;
}

.research-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-primary);
    transform: translateX(-100%);
    transition: transform 0.3s;
}

.research-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--hover-shadow);
}

.research-card:hover::before {
    transform: translateX(0);
}

.research-icon {
    font-size: 2rem;
    color: var(--accent-primary);
    margin-bottom: 1.5rem;
}

.research-card h3 {
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.research-card p {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
}

.research-tools {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.research-tools span {
    background: var(--bg-tertiary);
    color: var(--text-secondary);
    padding: 0.2rem 0.8rem;
    border-radius: 50px;
    font-size: 0.8rem;
}

/* ========== PROJECT CARDS ========== */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 2rem;
}

.project-card {
    background: var(--card-bg);
    padding: 2rem;
    border-radius: 15px;
    box-shadow: var(--card-shadow);
    transition: all 0.3s;
    position: relative;
}

.project-card.featured {
    border: 2px solid var(--accent-primary);
}

.featured-badge {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: var(--accent-primary);
    color: white;
    padding: 0.3rem 1rem;
    border-radius: 50px;
    font-size: 0.8rem;
}

.featured-badge i {
    margin-right: 0.3rem;
}

.project-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
}

.project-icon {
    font-size: 2rem;
    color: var(--accent-primary);
}

.project-year {
    color: var(--text-muted);
    font-family: var(--font-mono);
}

.project-card h3 {
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.project-venue {
    color: var(--accent-primary);
    font-size: 0.9rem;
    margin-bottom: 1rem;
}

.project-description {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
}

.project-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
}

.project-tags span {
    background: var(--bg-tertiary);
    color: var(--text-secondary);
    padding: 0.2rem 0.8rem;
    border-radius: 50px;
    font-size: 0.8rem;
}

.project-links {
    display: flex;
    gap: 1rem;
}

.project-link {
    color: var(--accent-primary);
    text-decoration: none;
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    gap: 0.3rem;
}

.project-link:hover {
    text-decoration: underline;
}

/* ========== CERTIFICATIONS SECTION ========== */
.cert-showcase {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 2rem;
    margin-bottom: 3rem;
}

.cert-badge-large {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    padding: 1rem;
    background: var(--card-bg);
    border-radius: 10px;
    box-shadow: var(--card-shadow);
    min-width: 100px;
}

.cert-badge-large i {
    font-size: 2rem;
}

.cert-badge-large.rubin i { color: #8A2BE2; }
.cert-badge-large.iucaa i { color: #FF5733; }
.cert-badge-large.iia i { color: #0077B6; }
.cert-badge-large.icsp i { color: #FFD700; }
.cert-badge-large.aas i { color: #0066cc; }

.cert-badge-large span {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-primary);
}

.cert-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
    margin: 2rem 0;
}

.cert-card {
    background: var(--card-bg);
    padding: 1.5rem;
    border-radius: 10px;
    box-shadow: var(--card-shadow);
    display: flex;
    gap: 1rem;
    transition: transform 0.3s;
    border-left: 4px solid transparent;
}

.cert-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--hover-shadow);
}

.cert-card:has(.rubin) { border-left-color: #8A2BE2; }
.cert-card:has(.iucaa) { border-left-color: #FF5733; }
.cert-card:has(.iia) { border-left-color: #0077B6; }
.cert-card:has(.icsp) { border-left-color: #FFD700; }
.cert-card:has(.amity) { border-left-color: #FF1493; }

.cert-icon {
    font-size: 2rem;
    min-width: 3rem;
    display: flex;
    justify-content: center;
}

.cert-icon.rubin i { color: #8A2BE2; }
.cert-icon.iucaa i { color: #FF5733; }
.cert-icon.iia i { color: #0077B6; }
.cert-icon.icsp i { color: #FFD700; }
.cert-icon.amity i { color: #FF1493; }
.cert-icon.other i { color: var(--text-muted); }

.cert-card h3 {
    font-size: 1.1rem;
    margin-bottom: 0.3rem;
    color: var(--text-primary);
}

.cert-org {
    color: var(--accent-primary);
    font-size: 0.9rem;
    margin-bottom: 0.3rem;
}

.cert-date {
    color: var(--text-muted);
    font-size: 0.8rem;
    font-family: var(--font-mono);
}

.cert-details {
    margin-top: 2rem;
}

.cert-details summary {
    cursor: pointer;
    color: var(--accent-primary);
    font-weight: 500;
    padding: 1rem;
    background: var(--bg-tertiary);
    border-radius: 10px;
    display: inline-block;
}

.cert-details summary i {
    margin-right: 0.5rem;
}

.table-responsive {
    overflow-x: auto;
    margin-top: 1.5rem;
}

.cert-table {
    width: 100%;
    border-collapse: collapse;
    background: var(--card-bg);
    border-radius: 10px;
    overflow: hidden;
    box-shadow: var(--card-shadow);
}

.cert-table th {
    background: var(--gradient-primary);
    color: white;
    padding: 1rem;
    text-align: left;
}

.cert-table td {
    padding: 1rem;
    border-bottom: 1px solid var(--border-color);
    color: var(--text-secondary);
}

.cert-table tr:hover {
    background: var(--bg-tertiary);
}

/* ========== SKILLS SECTION ========== */
.skills-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.skill-category {
    background: var(--card-bg);
    padding: 2rem;
    border-radius: 15px;
    box-shadow: var(--card-shadow);
}

.skill-category h3 {
    margin-bottom: 1.5rem;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.skill-category h3 i {
    color: var(--accent-primary);
}

.skill-items {
    display: flex;
    flex-wrap: wrap;
    gap: 0.8rem;
}

.skill-item {
    background: var(--bg-tertiary);
    color: var(--text-secondary);
    padding: 0.5rem 1.2rem;
    border-radius: 50px;
    font-size: 0.9rem;
    transition: all 0.3s;
}

.skill-item:hover {
    background: var(--accent-primary);
    color: white;
    transform: translateY(-2px);
}

/* ========== TEACHING SECTION ========== */
.teaching-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.teaching-card {
    background: var(--card-bg);
    padding: 2rem;
    border-radius: 15px;
    box-shadow: var(--card-shadow);
    display: flex;
    gap: 1.5rem;
    transition: transform 0.3s;
}

.teaching-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--hover-shadow);
}

.teaching-icon {
    font-size: 2rem;
    color: var(--accent-primary);
}

.teaching-content h3 {
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.teaching-org {
    color: var(--text-secondary);
    margin-bottom: 0.3rem;
}

.teaching-period {
    color: var(--text-muted);
    font-size: 0.9rem;
    font-family: var(--font-mono);
}

/* ========== BLOG SECTION ========== */
.blog-preview {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    background: var(--card-bg);
    padding: 2rem;
    border-radius: 15px;
    box-shadow: var(--card-shadow);
}

.blog-card {
    text-align: center;
    padding: 2rem;
}

.blog-icon {
    font-size: 3rem;
    color: var(--accent-primary);
    margin-bottom: 1rem;
}

.blog-card h3 {
    margin-bottom: 1rem;
}

.blog-card p {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
}

.blog-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--accent-primary);
    text-decoration: none;
    font-weight: 500;
}

.blog-link:hover {
    gap: 1rem;
}

.blog-posts {
    border-left: 1px solid var(--border-color);
    padding-left: 2rem;
}

.blog-post-item {
    margin-bottom: 1.5rem;
}

.post-date {
    color: var(--accent-primary);
    font-size: 0.8rem;
    font-family: var(--font-mono);
}

.post-title {
    color: var(--text-primary);
    font-size: 1.1rem;
}

/* ========== FIXED CONTACT SECTION - SOCIAL LINKS RIGHT SHIFTED ========== */
.contact-container {
    display: flex;
    flex-wrap: wrap;
    gap: 3rem;
    justify-content: space-between;
    align-items: flex-start;
}

.contact-info {
    flex: 1;
    min-width: 280px;
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.contact-item {
    display: flex;
    gap: 1.5rem;
    align-items: flex-start;
}

.contact-item i {
    font-size: 1.5rem;
    color: var(--accent-primary);
    min-width: 2rem;
}

.contact-item h4 {
    margin-bottom: 0.3rem;
    color: var(--text-primary);
}

.contact-item a,
.contact-item p {
    color: var(--text-secondary);
    text-decoration: none;
    display: block;
}

.contact-item a:hover {
    color: var(--accent-primary);
}

.social-links {
    flex: 1;
    min-width: 280px;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
    justify-content: end;
}

.social-link {
    background: var(--card-bg);
    padding: 1.5rem;
    border-radius: 10px;
    text-align: center;
    text-decoration: none;
    transition: all 0.3s;
    box-shadow: var(--card-shadow);
    display: block;
}

.social-link i {
    font-size: 2rem;
    margin-bottom: 0.5rem;
}

.social-link span {
    display: block;
    color: var(--text-primary);
    font-size: 0.9rem;
}

.social-link.linkedin i { color: #0077B5; }
.social-link.github i { color: #333; }
.social-link.blog i { color: #FF5722; }
.social-link.twitter i { color: #1DA1F2; }
.social-link.orcid i { color: #A6CE39; }
.social-link.ads i { color: #0066cc; }

.social-link:hover {
    transform: translateY(-5px);
    box-shadow: var(--hover-shadow);
}

[data-theme="dark"] .social-link.github i { color: #fff; }

/* ========== FOOTER ========== */
footer {
    background: var(--bg-tertiary);
    padding: 3rem 5%;
    text-align: center;
    border-top: 1px solid var(--border-color);
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
}

.footer-quote {
    color: var(--text-muted);
    font-style: italic;
    margin: 1rem 0;
}

.footer-location {
    color: var(--text-muted);
    font-size: 0.9rem;
}

.footer-location i {
    color: var(--accent-primary);
    margin-right: 0.3rem;
}

/* ========== BACK TO TOP BUTTON ========== */
.back-to-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    background: var(--gradient-primary);
    color: white;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    border: none;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s;
    z-index: 99;
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 102, 204, 0.3);
}

/* ========== COMING SOON ========== */
.coming-soon {
    text-align: center;
    padding: 3rem;
    background: var(--card-bg);
    border-radius: 15px;
    box-shadow: var(--card-shadow);
}

.coming-soon i {
    font-size: 4rem;
    color: var(--accent-primary);
    margin-bottom: 1rem;
}

.coming-soon h3 {
    margin-bottom: 1rem;
}

.publication-placeholder {
    margin-top: 2rem;
    text-align: left;
    max-width: 500px;
    margin-left: auto;
    margin-right: auto;
}

.pub-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem;
    border-bottom: 1px solid var(--border-color);
}

.pub-item i {
    font-size: 1.2rem;
    color: var(--accent-primary);
}

/* ========== PARTICLES BACKGROUND ========== */
#particles-js {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    pointer-events: none;
}

/* ========== RESPONSIVE DESIGN ========== */
@media (max-width: 1024px) {
    .hero-content {
        flex-direction: column;
        text-align: center;
        gap: 2rem;
    }
    
    .hero-badges {
        justify-content: center;
    }
    
    .hero-actions {
        justify-content: center;
    }
    
    .about-content {
        grid-template-columns: 1fr;
    }
    
    .contact-container {
        flex-direction: column;
    }
    
    .social-links {
        justify-content: center;
    }
}

@media (max-width: 768px) {
    .nav-menu {
        display: none;
    }
    
    .mobile-menu-btn {
        display: flex;
    }
    
    .name {
        font-size: 2.5rem;
    }
    
    .hero-subtitle {
        font-size: 1.2rem;
    }
    
    .section {
        padding: 60px 1rem;
    }
    
    .projects-grid,
    .research-grid {
        grid-template-columns: 1fr;
    }
    
    .blog-preview {
        grid-template-columns: 1fr;
    }
    
    .blog-posts {
        border-left: none;
        border-top: 1px solid var(--border-color);
        padding-left: 0;
        padding-top: 2rem;
    }
    
    .social-links {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 480px) {
    .hero-image-wrapper {
        width: 200px;
        height: 200px;
    }
    
    .name {
        font-size: 2rem;
    }
    
    .hero-actions {
        flex-direction: column;
    }
    
    .btn {
        width: 100%;
        justify-content: center;
    }
    
    .social-links {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .cert-grid {
        grid-template-columns: 1fr;
    }
    
    .about-quote {
        flex-direction: column;
        text-align: center;
    }
    
    .about-quote i {
        align-self: center;
    }
}