/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: #1a202c;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    overflow-x: hidden;
}

/* Custom scrollbar */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: #f1f1f1;
}

::-webkit-scrollbar-thumb {
    background: linear-gradient(135deg, #667eea, #764ba2);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(135deg, #5a67d8, #6b46c1);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    z-index: 1000;
    padding: 1rem 0;
    transition: all 0.3s ease;
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.1);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-logo h2 {
    color: #2563eb;
    font-weight: 700;
    font-size: 1.5rem;
}

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

.nav-link {
    text-decoration: none;
    color: #333;
    font-weight: 500;
    transition: color 0.3s ease;
    position: relative;
}

.nav-link:hover {
    color: #2563eb;
}

.nav-link::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: -5px;
    left: 0;
    background-color: #2563eb;
    transition: width 0.3s ease;
}

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

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
}

.bar {
    width: 25px;
    height: 3px;
    background-color: #333;
    margin: 3px 0;
    transition: 0.3s;
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding-top: 80px;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grain" width="100" height="100" patternUnits="userSpaceOnUse"><circle cx="50" cy="50" r="1" fill="rgba(255,255,255,0.1)"/></pattern></defs><rect width="100" height="100" fill="url(%23grain)"/></svg>');
    opacity: 0.3;
    animation: float 20s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-20px); }
}

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

@keyframes slideInLeft {
    from { transform: translateX(-100px); opacity: 0; }
    to { transform: translateX(0); opacity: 1; }
}

@keyframes slideInRight {
    from { transform: translateX(100px); opacity: 0; }
    to { transform: translateX(0); opacity: 1; }
}

.hero-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.hero-text h1 {
    font-size: 4rem;
    font-weight: 800;
    margin-bottom: 1rem;
    line-height: 1.1;
    background: linear-gradient(135deg, #ffffff 0%, #e2e8f0 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: fadeInUp 1s ease-out;
}

.hero-text h2 {
    font-size: 1.5rem;
    font-weight: 400;
    margin-bottom: 1.5rem;
    opacity: 0.9;
}

.hero-text p {
    font-size: 1.1rem;
    margin-bottom: 2rem;
    opacity: 0.8;
    line-height: 1.6;
}

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

.btn {
    padding: 15px 35px;
    border: none;
    border-radius: 50px;
    font-weight: 600;
    text-decoration: none;
    display: inline-block;
    transition: all 0.3s ease;
    cursor: pointer;
    position: relative;
    overflow: hidden;
    font-size: 1rem;
    letter-spacing: 0.5px;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    transition: left 0.5s;
}

.btn:hover::before {
    left: 100%;
}

.btn-primary {
    background-color: #fff;
    color: #2563eb;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
}

.btn-secondary {
    background-color: transparent;
    color: #fff;
    border: 2px solid #fff;
}

.btn-secondary:hover {
    background-color: #fff;
    color: #2563eb;
}

.social-links {
    display: flex;
    gap: 1rem;
    margin-top: 2rem;
    position: relative;
    z-index: 10;
}

.social-links a {
    color: #fff;
    font-size: 1.5rem;
    transition: transform 0.3s ease;
    text-decoration: none;
    cursor: pointer;
    position: relative;
    z-index: 10;
    display: inline-block;
    padding: 0.5rem;
}

.social-links a:hover {
    transform: translateY(-3px);
    color: #2563eb;
}

.hero-image {
    display: flex;
    justify-content: center;
}

.profile-card {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 20px;
    padding: 2rem;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    text-align: center;
}

.profile-image-container {
    position: relative;
    width: 220px;
    height: 220px;
    margin: 0 auto 1.5rem;
}

.profile-image {
    width: 100%;
    height: 100%;
    border-radius: 50%;
    object-fit: cover;
    border: 4px solid rgba(255, 255, 255, 0.3);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.3);
    transition: all 0.3s ease;
    position: relative;
    z-index: 2;
    animation: float 6s ease-in-out infinite;
}

.profile-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border-radius: 50%;
    background: linear-gradient(45deg, rgba(37, 99, 235, 0.2), rgba(59, 130, 246, 0.2));
    opacity: 0;
    transition: opacity 0.3s ease;
    z-index: 3;
}

.profile-glow {
    position: absolute;
    top: -10px;
    left: -10px;
    right: -10px;
    bottom: -10px;
    border-radius: 50%;
    background: linear-gradient(45deg, #2563eb, #3b82f6, #2563eb);
    filter: blur(20px);
    opacity: 0;
    transition: opacity 0.3s ease;
    z-index: 1;
}

.profile-card:hover .profile-image {
    transform: scale(1.05);
    border-color: rgba(255, 255, 255, 0.6);
}

.profile-card:hover .profile-overlay {
    opacity: 1;
}

.profile-card:hover .profile-glow {
    opacity: 0.7;
}

.profile-fallback {
    width: 100%;
    height: 100%;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.2);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 4rem;
    color: rgba(255, 255, 255, 0.7);
    border: 4px solid rgba(255, 255, 255, 0.3);
    position: absolute;
    top: 0;
    left: 0;
    z-index: 2;
}

.institution-logos {
    display: flex;
    gap: 1rem;
    justify-content: center;
}

.logo-item {
    padding: 8px 16px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 600;
}

/* Section Styles */
section {
    padding: 80px 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    position: relative;
}

section:nth-child(even) {
    background: rgba(248, 250, 252, 0.95);
}

.section-title {
    font-size: 3rem;
    font-weight: 800;
    text-align: center;
    margin-bottom: 4rem;
    color: #1f2937;
    position: relative;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: fadeInUp 1s ease-out;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 2px;
}

/* About Section */
.about {
    background-color: #f9fafb;
}

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

.about-text p {
    font-size: 1.1rem;
    margin-bottom: 1.5rem;
    color: #4b5563;
}

.about-text ul {
    margin: 1.5rem 0;
    padding-left: 2rem;
}

.about-text li {
    margin-bottom: 0.5rem;
    color: #4b5563;
}

.stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    margin-top: 3rem;
}

.stat-item {
    text-align: center;
    padding: 2rem;
    background: #fff;
    border-radius: 15px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.stat-item h3 {
    font-size: 2.5rem;
    font-weight: 700;
    color: #2563eb;
    margin-bottom: 0.5rem;
}

.stat-item p {
    color: #6b7280;
    font-weight: 500;
}

/* Education Section */
.timeline {
    max-width: 800px;
    margin: 0 auto;
    position: relative;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 50%;
    top: 0;
    bottom: 0;
    width: 2px;
    background: #e5e7eb;
    transform: translateX(-50%);
}

.timeline-item {
    position: relative;
    margin-bottom: 3rem;
    width: 50%;
}

.timeline-item:nth-child(odd) {
    left: 0;
    padding-right: 2rem;
}

.timeline-item:nth-child(even) {
    left: 50%;
    padding-left: 2rem;
}

.timeline-marker {
    position: absolute;
    width: 20px;
    height: 20px;
    background: #2563eb;
    border-radius: 50%;
    border: 4px solid #fff;
    box-shadow: 0 0 0 4px #e5e7eb;
}

.timeline-item:nth-child(odd) .timeline-marker {
    right: -11px;
}

.timeline-item:nth-child(even) .timeline-marker {
    left: -11px;
}

.timeline-content {
    background: #fff;
    padding: 2rem;
    border-radius: 15px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.timeline-content h3 {
    color: #1f2937;
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.timeline-content h4 {
    color: #2563eb;
    font-size: 1.1rem;
    margin-bottom: 1rem;
}

.date {
    background: #dbeafe;
    color: #1d4ed8;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 500;
}

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

.course-tag {
    background: #f3f4f6;
    color: #374151;
    padding: 4px 12px;
    border-radius: 15px;
    font-size: 0.85rem;
}

/* Activities & Awards Section */
.activities {
    padding: 5rem 0;
}

.activities-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.activity-card {
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-radius: 20px;
    padding: 2rem;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
    display: flex;
    align-items: flex-start;
    gap: 1.5rem;
}

.activity-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.4), transparent);
    transition: left 0.5s ease;
}

.activity-card:hover::before {
    left: 100%;
}

.activity-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.15);
}

.activity-icon {
    flex-shrink: 0;
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #667eea, #764ba2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.5rem;
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.3);
    transition: all 0.3s ease;
}

.activity-card:hover .activity-icon {
    transform: scale(1.1);
    box-shadow: 0 6px 20px rgba(102, 126, 234, 0.4);
}

.activity-content {
    flex: 1;
}

.activity-content h3 {
    color: #1a202c;
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    background: linear-gradient(135deg, #667eea, #764ba2);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.activity-content h4 {
    color: #4a5568;
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 0.75rem;
}

.activity-content p {
    color: #718096;
    font-size: 0.95rem;
    line-height: 1.6;
    margin: 0;
}

/* News Section */
.news {
    padding: 5rem 0;
}

.news-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.news-card {
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-radius: 20px;
    padding: 2rem;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
    display: flex;
    align-items: flex-start;
    gap: 1.5rem;
}

.news-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.4), transparent);
    transition: left 0.5s ease;
}

.news-card:hover::before {
    left: 100%;
}

.news-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.15);
}

.news-icon {
    flex-shrink: 0;
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #10b981, #059669);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.5rem;
    box-shadow: 0 4px 15px rgba(16, 185, 129, 0.3);
    transition: all 0.3s ease;
}

.news-card:hover .news-icon {
    transform: scale(1.1);
    box-shadow: 0 6px 20px rgba(16, 185, 129, 0.4);
}

.news-content {
    flex: 1;
}

.news-content h3 {
    color: #1a202c;
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    background: linear-gradient(135deg, #10b981, #059669);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.news-content h4 {
    color: #4a5568;
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 0.75rem;
}

.news-content p {
    color: #718096;
    font-size: 0.95rem;
    line-height: 1.6;
    margin-bottom: 1rem;
}

.news-date {
    display: inline-block;
    background: linear-gradient(135deg, #10b981, #059669);
    color: white;
    padding: 0.25rem 0.75rem;
    border-radius: 15px;
    font-size: 0.8rem;
    font-weight: 500;
    box-shadow: 0 2px 8px rgba(16, 185, 129, 0.3);
}

/* Experience Section */
.experience {
    background-color: #f9fafb;
}

.experience-grid {
    display: grid;
    gap: 2rem;
    max-width: 1000px;
    margin: 0 auto;
}

.experience-card {
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    padding: 2rem;
    border-radius: 20px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.experience-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.1), transparent);
    transition: left 0.5s;
}

.experience-card:hover::before {
    left: 100%;
}

.experience-card:hover {
    transform: translateY(-5px);
}

.company-logo {
    width: 60px;
    height: 60px;
    background: #f8f9fa;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    margin-bottom: 1rem;
    border: 2px solid #e5e7eb;
    overflow: hidden;
    position: relative;
}

.company-logo img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    padding: 8px;
}

.company-logo.ucb {
    background: white;
    color: #1e40af;
    border: 2px solid #1e40af;
}

.company-logo.ucb img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    padding: 4px;
}

.company-logo.scb {
    background: white;
    color: #059669;
    border: 2px solid #059669;
}

.company-logo.scb img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    padding: 4px;
}

.company-logo.stevens {
    background: white;
    color: #dc2626;
    font-size: 0.8rem;
    font-weight: 600;
    border: 2px solid #dc2626;
}

.company-logo.stevens img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    padding: 4px;
}

.experience-card h3 {
    color: #1f2937;
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.experience-card h4 {
    color: #2563eb;
    margin-bottom: 1rem;
}

.experience-card ul {
    margin: 1rem 0;
    padding-left: 1.5rem;
}

.experience-card li {
    margin-bottom: 0.5rem;
    color: #4b5563;
}

.skills-used {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: 1rem;
}

.skills-used span {
    background: #dbeafe;
    color: #1d4ed8;
    padding: 4px 12px;
    border-radius: 15px;
    font-size: 0.85rem;
}

/* Projects Section */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
}

.project-card {
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    padding: 2rem;
    border-radius: 20px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.project-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.1), transparent);
    transition: left 0.5s;
}

.project-card:hover::before {
    left: 100%;
}

.project-card:hover {
    transform: translateY(-5px);
}

.project-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 1rem;
}

.project-header h3 {
    color: #1f2937;
    font-size: 1.2rem;
    font-weight: 600;
    flex: 1;
}

.project-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin: 1rem 0;
}

.project-tags span {
    background: #f3f4f6;
    color: #374151;
    padding: 4px 12px;
    border-radius: 15px;
    font-size: 0.85rem;
}

.project-links {
    margin-top: 1.5rem;
}

.project-link {
    color: #2563eb;
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
}

.project-link:hover {
    color: #1d4ed8;
}

/* Certificates Section */
.certificates {
    background-color: #ffffff;
}

.certificates-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
}

.certificate-card {
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    padding: 2rem;
    border-radius: 20px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.certificate-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.1), transparent);
    transition: left 0.5s;
}

.certificate-card:hover::before {
    left: 100%;
}

.certificate-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
}

.certificate-icon {
    width: 60px;
    height: 60px;
    background: #f8f9fa;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
    border: 2px solid #e5e7eb;
    overflow: hidden;
}

.certificate-icon img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    padding: 8px;
}

.certificate-icon.udemy {
    background: #a435f0;
    color: white;
    font-weight: bold;
    font-size: 0.9rem;
}

.certificate-icon.akuna {
    background: #1a365d;
    color: white;
}

.certificate-icon.edx {
    background: #02262f;
    color: white;
}

.certificate-icon.coursera {
    background: #0056d3;
    color: white;
    font-size: 0.7rem;
    font-weight: bold;
}

.certificate-icon.linkedin {
    background: #0077b5;
    color: white;
}

.certificate-card h3 {
    color: #1f2937;
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    line-height: 1.3;
}

.certificate-card h4 {
    color: #2563eb;
    font-size: 1rem;
    font-weight: 500;
    margin-bottom: 0.5rem;
}

.cert-date {
    background: #dbeafe;
    color: #1d4ed8;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 500;
    display: inline-block;
    margin-bottom: 1rem;
}

.certificate-card p {
    color: #4b5563;
    line-height: 1.6;
    margin-bottom: 1.5rem;
}

.cert-skills {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.cert-skills span {
    background: #e5e7eb;
    color: #374151;
    padding: 4px 12px;
    border-radius: 15px;
    font-size: 0.8rem;
    font-weight: 500;
}

.cert-links {
    margin-top: 1.5rem;
}

.cert-link {
    color: #2563eb;
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.cert-link:hover {
    color: #1d4ed8;
}

.cert-link i {
    font-size: 0.9rem;
}

/* Skills Section */
.skills {
    background-color: #f9fafb;
}

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

.skill-category {
    background: #fff;
    padding: 2rem;
    border-radius: 15px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.skill-category h3 {
    color: #1f2937;
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
}

.skill-item {
    margin-bottom: 1.5rem;
}

.skill-item span {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: #374151;
}

.skill-bar {
    width: 100%;
    height: 8px;
    background: #e5e7eb;
    border-radius: 4px;
    overflow: hidden;
}

.skill-progress {
    height: 100%;
    background: linear-gradient(90deg, #2563eb, #3b82f6);
    border-radius: 4px;
    transition: width 1s ease;
}

.skill-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
}

.skill-tags span {
    background: #dbeafe;
    color: #1d4ed8;
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 500;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    position: relative;
}

.skill-tags span::before {
    font-family: "Font Awesome 5 Free";
    font-weight: 900;
    font-size: 14px;
    margin-right: 6px;
    flex-shrink: 0;
}

.skill-tags span.numpy::before {
    content: "\f1c0";
    color: #4DABCF;
}

.skill-tags span.pandas::before {
    content: "\f542";
    color: #130558;
}

.skill-tags span.pytorch::before {
    content: "\f542";
    color: #EE4C2C;
}

.skill-tags span.tensorflow::before {
    content: "\f542";
    color: #FF6F00;
}

.skill-tags span.git::before {
    content: "\f1d3";
    color: #F05032;
}

.skill-tags span.aws::before {
    content: "\f375";
    color: #FF9900;
}

.skill-tags span.docker::before {
    content: "\f395";
    color: #2496ED;
}

.skill-tags span.python::before {
    content: "\f3e2";
    color: #3776AB;
}

.skill-tags span.cpp::before {
    content: "\f542";
    color: #00599C;
}

.skill-tags span.sql::before {
    content: "\f1c0";
    color: #336791;
}

.skill-tags span.scipy::before {
    content: "\f542";
    color: #8CAAE6;
}

.skill-tags span.scikit::before {
    content: "\f542";
    color: #F7931E;
}

.skill-tags span.keras::before {
    content: "\f542";
    color: #D00000;
}

.skill-tags span.matplotlib::before {
    content: "\f542";
    color: #11557C;
}

.skill-tags span.seaborn::before {
    content: "\f542";
    color: #7A9BC0;
}

.skill-tags span.plotly::before {
    content: "\f542";
    color: #3F4F75;
}

.skill-tags span.openbb::before {
    content: "\f542";
    color: #00D4AA;
}

.skill-tags span.statsmodels::before {
    content: "\f542";
    color: #FF6B6B;
}

.skill-tags span.zipline::before {
    content: "\f542";
    color: #FF6B6B;
}

.skill-tags span.pyfolio::before {
    content: "\f542";
    color: #FF6B6B;
}

.skill-tags span.riskfolio::before {
    content: "\f542";
    color: #FF6B6B;
}

.skill-tags span.vectorbt::before {
    content: "\f542";
    color: #FF6B6B;
}

.skill-tags span.jupyter::before {
    content: "\f542";
    color: #F37626;
}

.skill-tags span.github::before {
    content: "\f09b";
    color: #181717;
}

.skill-tags span.vscode::before {
    content: "\f542";
    color: #007ACC;
}

.skill-tags span.quantconnect::before {
    content: "\f542";
    color: #F7931E;
}

.skill-tags span.fastapi::before {
    content: "\f542";
    color: #009688;
}

.skill-tags span.streamlit::before {
    content: "\f542";
    color: #FF4B4B;
}

.skill-tags span.tableau::before {
    content: "\f542";
    color: #E97627;
}

.skill-tags span.excel::before {
    content: "\f1c3";
    color: #217346;
}

/* Resume Section */
.resume {
    padding: 5rem 0;
}

.resume-content {
    display: flex;
    justify-content: center;
    align-items: center;
    margin-top: 3rem;
}

.resume-card {
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-radius: 20px;
    padding: 3rem;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
    max-width: 600px;
    width: 100%;
    text-align: center;
}

.resume-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.4), transparent);
    transition: left 0.5s ease;
}

.resume-card:hover::before {
    left: 100%;
}

.resume-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.15);
}

.resume-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, #dc2626, #ef4444);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 2rem;
    margin: 0 auto 2rem;
    box-shadow: 0 4px 15px rgba(220, 38, 38, 0.3);
    transition: all 0.3s ease;
}

.resume-card:hover .resume-icon {
    transform: scale(1.1);
    box-shadow: 0 6px 20px rgba(220, 38, 38, 0.4);
}

.resume-info h3 {
    color: #1a202c;
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    background: linear-gradient(135deg, #dc2626, #ef4444);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.resume-info p {
    color: #718096;
    font-size: 1rem;
    margin-bottom: 0.5rem;
}

.resume-info p strong {
    color: #4a5568;
}

.resume-actions {
    display: flex;
    gap: 1rem;
    justify-content: center;
    margin-top: 2rem;
    flex-wrap: wrap;
}

.resume-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    border-radius: 25px;
    text-decoration: none;
    font-weight: 600;
    font-size: 0.95rem;
    transition: all 0.3s ease;
    border: 2px solid transparent;
}

.resume-btn.primary {
    background: linear-gradient(135deg, #dc2626, #ef4444);
    color: white;
    border-color: #dc2626;
}

.resume-btn.primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(220, 38, 38, 0.4);
}

.resume-btn.secondary {
    background: transparent;
    color: #dc2626;
    border-color: #dc2626;
}

.resume-btn.secondary:hover {
    background: #dc2626;
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(220, 38, 38, 0.4);
}

/* Contact Section */
.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    max-width: 1000px;
    margin: 0 auto;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    margin-bottom: 2rem;
}

.contact-item i {
    font-size: 1.5rem;
    color: #2563eb;
    margin-top: 0.25rem;
}

.contact-item h4 {
    color: #1f2937;
    font-weight: 600;
    margin-bottom: 0.25rem;
}

.contact-item p {
    color: #4b5563;
}

.contact-form {
    background: #f9fafb;
    padding: 2rem;
    border-radius: 15px;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid #e5e7eb;
    border-radius: 8px;
    font-size: 1rem;
    transition: border-color 0.3s ease;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #2563eb;
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

/* Email Direct Contact Form */
.email-direct {
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-radius: 20px;
    padding: 2rem;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    text-align: center;
}

.email-direct h3 {
    color: #1a202c;
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    background: linear-gradient(135deg, #2563eb, #3b82f6);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.email-direct p {
    color: #718096;
    font-size: 1rem;
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

.contact-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    margin-bottom: 2rem;
    flex-wrap: wrap;
}

.contact-buttons .btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    border-radius: 25px;
    text-decoration: none;
    font-weight: 600;
    font-size: 0.95rem;
    transition: all 0.3s ease;
}

.contact-note {
    background: rgba(37, 99, 235, 0.1);
    border-radius: 15px;
    padding: 1.5rem;
    margin-top: 1rem;
}

.contact-note p {
    color: #4a5568;
    font-size: 0.95rem;
    margin-bottom: 0.5rem;
    text-align: left;
}

.contact-note p:last-child {
    margin-bottom: 0;
}

.contact-note strong {
    color: #2563eb;
}

/* Footer */
footer {
    background: #1f2937;
    color: #fff;
    text-align: center;
    padding: 2rem 0;
}

/* Responsive Design */
@media (max-width: 768px) {
    .hamburger {
        display: flex;
    }
    
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background-color: white;
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: 0 10px 27px rgba(0, 0, 0, 0.05);
        padding: 2rem 0;
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero-text h1 {
        font-size: 2.5rem;
    }
    
    .stats {
        grid-template-columns: 1fr;
    }
    
    .timeline::before {
        left: 30px;
    }
    
    .timeline-item {
        width: 100%;
        left: 0;
        padding-left: 4rem;
        padding-right: 0;
    }
    
    .timeline-item .timeline-marker {
        left: 19px;
    }
    
    .contact-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .projects-grid {
        grid-template-columns: 1fr;
    }
    
    .skills-grid {
        grid-template-columns: 1fr;
    }
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.timeline-content,
.experience-card,
.project-card,
.skill-category {
    animation: fadeInUp 0.6s ease;
}

/* Scroll animations */
.section-title {
    position: relative;
    overflow: hidden;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    width: 60px;
    height: 4px;
    background: linear-gradient(90deg, #2563eb, #3b82f6);
    transform: translateX(-50%);
    border-radius: 2px;
}