/* 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: #333;
    background-color: #ffffff;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid #e5e5e5;
    z-index: 1000;
    transition: all 0.3s ease;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
}

.nav-logo {
    font-size: 1.5rem;
    font-weight: 600;
    color: #2d3748;
    text-decoration: none;
}

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

.nav-link {
    text-decoration: none;
    color: #4a5568;
    font-weight: 500;
    transition: color 0.3s ease;
    position: relative;
}

.nav-link:hover {
    color: #2d3748;
}

.nav-link::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: -5px;
    left: 0;
    background-color: #2d3748;
    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: #4a5568;
    margin: 3px 0;
    transition: 0.3s;
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    background: linear-gradient(135deg, #f7fafc 0%, #edf2f7 100%);
    padding-top: 70px;
}

.hero-image {
    margin-bottom: 2rem;
    text-align: center;
}

.profile-photo {
    width: 200px;
    height: 200px;
    border-radius: 50%;
    object-fit: cover;
    border: 4px solid white;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
}

.profile-photo:hover {
    transform: scale(1.05);
}

.profile-photo-placeholder {
    width: 200px;
    height: 200px;
    border-radius: 50%;
    border: 4px solid white;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto;
    transition: transform 0.3s ease;
}

.profile-photo-placeholder:hover {
    transform: scale(1.05);
}

.profile-photo-placeholder i {
    font-size: 4rem;
    color: white;
}

.hero-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    text-align: center;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 600;
    color: #2d3748;
    margin-bottom: 1rem;
    letter-spacing: -0.02em;
}

.hero-subtitle {
    font-size: 1.5rem;
    color: #4a5568;
    margin-bottom: 1.5rem;
    font-weight: 400;
}

.hero-description {
    font-size: 1.1rem;
    color: #718096;
    max-width: 600px;
    margin: 0 auto 1.5rem;
    line-height: 1.7;
}

.hero-mission {
    font-size: 1.2rem;
    color: #2d3748;
    font-weight: 500;
    max-width: 600px;
    margin: 0 auto 2rem;
    line-height: 1.6;
    font-style: italic;
    border-left: 3px solid #667eea;
    padding-left: 1rem;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

.btn {
    padding: 12px 24px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
    display: inline-block;
    border: 2px solid transparent;
}

.btn-primary {
    background-color: #2d3748;
    color: white;
}

.btn-primary:hover {
    background-color: #1a202c;
    transform: translateY(-2px);
}

.btn-secondary {
    background-color: transparent;
    color: #2d3748;
    border-color: #2d3748;
}

.btn-secondary:hover {
    background-color: #2d3748;
    color: white;
    transform: translateY(-2px);
}

/* Section Styles */
section {
    padding: 5rem 0;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 600;
    color: #2d3748;
    text-align: center;
    margin-bottom: 3rem;
    letter-spacing: -0.02em;
}

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

/* Current Work Section */
.current-work {
    background-color: #f7fafc;
}

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

.company-card {
    background: white;
    border-radius: 12px;
    padding: 2.5rem;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
    border: 1px solid #e2e8f0;
    text-align: center;
}

.company-info h3 {
    font-size: 2rem;
    color: #2d3748;
    margin-bottom: 0.5rem;
    font-weight: 600;
}

.company-role {
    font-size: 1.2rem;
    color: #4a5568;
    margin-bottom: 1.5rem;
    font-weight: 500;
}

.company-description {
    font-size: 1.1rem;
    color: #4a5568;
    line-height: 1.7;
    margin-bottom: 2rem;
}

.company-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: #2d3748;
    text-decoration: none;
    font-weight: 500;
    padding: 12px 24px;
    border: 2px solid #2d3748;
    border-radius: 8px;
    transition: all 0.3s ease;
}

.company-link:hover {
    background-color: #2d3748;
    color: white;
    transform: translateY(-2px);
}

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

.research-tag {
    background-color: #667eea;
    color: white;
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 500;
    border: 1px solid #5a67d8;
}

/* Hardware Achievements Section */
.achievements {
    background-color: #ffffff;
}

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

.achievement-card {
    background: white;
    border-radius: 12px;
    padding: 2rem;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
    border: 1px solid #e2e8f0;
    transition: all 0.3s ease;
    display: flex;
    align-items: flex-start;
    gap: 1.5rem;
}

.achievement-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
}

.achievement-icon {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    flex-shrink: 0;
}

.achievement-content h3 {
    font-size: 1.3rem;
    color: #2d3748;
    margin-bottom: 1rem;
    font-weight: 600;
}

.achievement-description {
    color: #4a5568;
    line-height: 1.6;
    margin-bottom: 1.5rem;
}

.achievement-link-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: #667eea;
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
}

.achievement-link-btn:hover {
    color: #5a67d8;
}

.status-badge {
    background-color: #fef5e7;
    color: #d69e2e;
    padding: 4px 12px;
    border-radius: 15px;
    font-size: 0.8rem;
    font-weight: 500;
}

.achievement-tech {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.tech-badge {
    background-color: #edf2f7;
    color: #2d3748;
    padding: 4px 12px;
    border-radius: 15px;
    font-size: 0.8rem;
    font-weight: 500;
}

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

.about-text p {
    font-size: 1.1rem;
    color: #4a5568;
    margin-bottom: 1.5rem;
    line-height: 1.7;
}

.skills h3 {
    font-size: 1.5rem;
    color: #2d3748;
    margin-bottom: 1.5rem;
    font-weight: 600;
}

.skills-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
}

.skill-tag {
    background-color: #f7fafc;
    color: #4a5568;
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 500;
    border: 1px solid #e2e8f0;
    transition: all 0.3s ease;
}

.skill-tag:hover {
    background-color: #edf2f7;
    transform: translateY(-1px);
}

/* Projects Section */
.projects {
    background-color: #f7fafc;
}

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

.project-card {
    background: white;
    border-radius: 12px;
    padding: 2rem;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
    border: 1px solid #e2e8f0;
}

.project-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
}

.project-title {
    font-size: 1.5rem;
    color: #2d3748;
    margin-bottom: 1rem;
    font-weight: 600;
}

.project-description {
    color: #4a5568;
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

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

.tech-tag {
    background-color: #edf2f7;
    color: #2d3748;
    padding: 4px 12px;
    border-radius: 15px;
    font-size: 0.8rem;
    font-weight: 500;
}

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

.project-link {
    color: #4a5568;
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 6px 12px;
    border-radius: 6px;
    transition: all 0.3s ease;
}

.project-link:hover {
    color: #2d3748;
    background-color: #f7fafc;
    transform: translateY(-1px);
}

.project-link i.fa-python {
    color: #3776ab;
}

.project-link:hover i.fa-python {
    color: #2d5a8b;
}

/* LinkedIn Posts Section */
.linkedin-posts {
    background-color: #f8fafc;
    padding: 5rem 0;
}

.section-subtitle {
    text-align: center;
    color: #718096;
    font-size: 1.1rem;
    margin-bottom: 3rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.posts-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 1.5rem;
    margin-bottom: 3rem;
}

.post-card {
    background-color: white;
    border-radius: 12px;
    padding: 1.25rem;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
    border: 1px solid #e2e8f0;
}

.post-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
}

.post-header {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 0.875rem;
}

.post-avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    overflow: hidden;
    flex-shrink: 0;
}

.avatar-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.post-meta {
    flex: 1;
}

.post-author {
    font-size: 0.9rem;
    font-weight: 600;
    color: #2d3748;
    margin: 0;
}

.post-date {
    font-size: 0.8rem;
    color: #718096;
    margin: 0;
}

.post-platform {
    color: #0077b5;
    font-size: 1.2rem;
}

.post-content {
    margin-bottom: 1.25rem;
}

.post-text {
    color: #4a5568;
    line-height: 1.5;
    margin-bottom: 0.875rem;
    font-size: 0.9rem;
}

.post-highlights {
    display: flex;
    flex-wrap: wrap;
    gap: 0.375rem;
}

.highlight-tag {
    background-color: #edf2f7;
    color: #4a5568;
    padding: 0.2rem 0.6rem;
    border-radius: 16px;
    font-size: 0.75rem;
    font-weight: 500;
    border: 1px solid #e2e8f0;
}

.post-footer {
    border-top: 1px solid #e2e8f0;
    padding-top: 0.875rem;
}

.post-link {
    color: #0077b5;
    text-decoration: none;
    font-weight: 500;
    font-size: 0.85rem;
    display: inline-flex;
    align-items: center;
    gap: 0.375rem;
    transition: color 0.3s ease;
}

.post-link:hover {
    color: #005885;
    text-decoration: underline;
}

.posts-footer {
    text-align: center;
}

.posts-footer .btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

/* Tech News Section */
.tech-news {
    background-color: #ffffff;
    padding: 5rem 0;
}

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

.news-card {
    background-color: #f8fafc;
    border-radius: 12px;
    padding: 1.5rem;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
    border: 1px solid #e2e8f0;
    position: relative;
    overflow: hidden;
}

.news-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
}

.news-card.featured {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    grid-column: span 2;
}

.news-card.featured .news-category {
    background-color: rgba(255, 255, 255, 0.2);
    color: white;
}

.news-card.featured .news-title,
.news-card.featured .news-excerpt,
.news-card.featured .news-meta {
    color: white;
}

.news-card.featured .news-link {
    color: #fbbf24;
}

.news-category {
    display: inline-block;
    background-color: #e2e8f0;
    color: #4a5568;
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 1rem;
}

.news-title {
    font-size: 1.1rem;
    font-weight: 600;
    color: #2d3748;
    margin-bottom: 0.75rem;
    line-height: 1.4;
}

.news-excerpt {
    color: #4a5568;
    line-height: 1.6;
    margin-bottom: 1rem;
    font-size: 0.9rem;
}

.news-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
    font-size: 0.8rem;
}

.news-source {
    color: #0077b5;
    font-weight: 500;
}

.news-date {
    color: #718096;
}

.news-link {
    color: #0077b5;
    text-decoration: none;
    font-weight: 500;
    font-size: 0.9rem;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    transition: color 0.3s ease;
}

.news-link:hover {
    color: #005885;
    text-decoration: underline;
}

.news-footer {
    text-align: center;
    margin-top: 2rem;
}

.news-note {
    color: #718096;
    font-size: 0.9rem;
    font-style: italic;
}

/* Resources Section */
.resources {
    background-color: #f8fafc;
    padding: 5rem 0;
}

.resources-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.resource-category {
    background-color: white;
    border-radius: 12px;
    padding: 1.5rem;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
    border: 1px solid #e2e8f0;
    transition: all 0.3s ease;
}

.resource-category:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
}

.category-header {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 1.5rem;
    padding-bottom: 1rem;
    border-bottom: 2px solid #e2e8f0;
}

.category-header i {
    font-size: 1.5rem;
    color: #667eea;
}

.category-header h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: #2d3748;
    margin: 0;
}

.resource-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.resource-item {
    padding: 1rem;
    background-color: #f8fafc;
    border-radius: 8px;
    border: 1px solid #e2e8f0;
    transition: all 0.3s ease;
}

.resource-item:hover {
    background-color: #edf2f7;
    transform: translateX(4px);
}

.resource-content h4 {
    font-size: 1rem;
    font-weight: 600;
    color: #2d3748;
    margin: 0 0 0.5rem 0;
    line-height: 1.4;
}

.resource-author {
    font-size: 0.85rem;
    color: #718096;
    margin: 0 0 0.5rem 0;
    font-style: italic;
}

.resource-description {
    font-size: 0.9rem;
    color: #4a5568;
    line-height: 1.5;
    margin: 0 0 0.75rem 0;
}

.resource-link {
    color: #0077b5;
    text-decoration: none;
    font-weight: 500;
    font-size: 0.85rem;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    transition: color 0.3s ease;
}

.resource-link:hover {
    color: #005885;
    text-decoration: underline;
}

.resources-footer {
    text-align: center;
    margin-top: 2rem;
}

.resources-note {
    color: #718096;
    font-size: 0.9rem;
    font-style: italic;
}

/* Contact Section */
.contact {
    background-color: #ffffff;
}

.contact-content {
    text-align: center;
    max-width: 600px;
    margin: 0 auto;
}

.contact-info p {
    font-size: 1.1rem;
    color: #4a5568;
    margin-bottom: 2rem;
    line-height: 1.7;
}

.contact-note {
    font-size: 1rem;
    color: #718096;
    font-style: italic;
    margin-bottom: 2rem;
}

.contact-email {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    margin-bottom: 2rem;
    font-size: 1.1rem;
}

.contact-email a {
    color: #2d3748;
    text-decoration: none;
    font-weight: 500;
}

.contact-email a:hover {
    text-decoration: underline;
}

.social-links {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
}

.social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 50px;
    height: 50px;
    background-color: #f7fafc;
    color: #4a5568;
    border-radius: 50%;
    text-decoration: none;
    transition: all 0.3s ease;
    border: 1px solid #e2e8f0;
}

.social-link:hover {
    background-color: #2d3748;
    color: white;
    transform: translateY(-2px);
}

.social-link i {
    font-size: 1.2rem;
}

/* Footer */
.footer {
    background-color: #2d3748;
    color: #a0aec0;
    text-align: center;
    padding: 2rem 0;
}

.footer p {
    font-size: 0.9rem;
}



/* 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-title {
        font-size: 2.5rem;
    }

    .hero-subtitle {
        font-size: 1.2rem;
    }

    .profile-photo {
        width: 150px;
        height: 150px;
    }

    .profile-photo-placeholder {
        width: 150px;
        height: 150px;
    }

    .profile-photo-placeholder i {
        font-size: 3rem;
    }

    .about-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .projects-grid {
        grid-template-columns: 1fr;
    }



    .posts-grid {
        grid-template-columns: 1fr;
    }

    .news-grid {
        grid-template-columns: 1fr;
    }

    .news-card.featured {
        grid-column: span 1;
    }

    .resources-grid {
        grid-template-columns: 1fr;
    }

    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }

    .btn {
        width: 200px;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 1rem;
    }

    .hero-title {
        font-size: 2rem;
    }

    .section-title {
        font-size: 2rem;
    }

    .profile-photo {
        width: 120px;
        height: 120px;
    }

    .profile-photo-placeholder {
        width: 120px;
        height: 120px;
    }

    .profile-photo-placeholder i {
        font-size: 2.5rem;
    }

    .project-card {
        padding: 1.5rem;
    }

    .achievement-card {
        flex-direction: column;
        text-align: center;
        gap: 1rem;
    }

    .achievement-icon {
        align-self: center;
    }
}