/* CSS Part 1: Global and Root */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-bg: #1a1a1a;
    --secondary-bg: #2d2d2d;
    --card-bg: #333333;
    --accent-color: #4a6cf7;
    --accent-hover: #3a5ce6;
    --text-primary: #ffffff;
    --text-secondary: #b0b0b0;
    --text-light: #cccccc;
    --border-color: #404040;
    --success-color: #10b981;
    --error-color: #ef4444;
    --shadow-color: rgba(0, 0, 0, 0.3);
    
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-xxl: 4rem;
    
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-secondary: 'Poppins', 'Segoe UI', sans-serif;
    
    --transition-fast: 150ms ease;
    --transition-medium: 300ms ease;
    --transition-slow: 500ms ease;
    
    --shadow-sm: 0 2px 8px var(--shadow-color);
    --shadow-md: 0 4px 20px var(--shadow-color);
    --shadow-lg: 0 8px 30px var(--shadow-color);
    --shadow-xl: 0 12px 40px var(--shadow-color);
    
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 14px;
    --radius-xl: 18px;
    
    --container-width: 1200px;
    --container-padding: 1rem;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-primary);
    background-color: var(--primary-bg);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    animation: gradient-bg 20s ease infinite;
    background: linear-gradient(-45deg, #1a1a1a, #2d2d2d, #1a1a1a, #2d2d2d);
    background-size: 400% 400%;
}

@keyframes gradient-bg {
    0% {
        background-position: 0% 50%;
    }
    50% {
        background-position: 100% 50%;
    }
    100% {
        background-position: 0% 50%;
    }
}

.container {
    width: 100%;
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}
/* CSS Part 2: Typography and Navigation */
h1, h2, h3, h4 {
    font-family: var(--font-secondary);
    font-weight: 600;
    line-height: 1.3;
}

.section-title {
    font-size: 2.25rem;
    margin-bottom: var(--spacing-lg);
    text-align: center;
    position: relative;
    padding-bottom: var(--spacing-sm);
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background-color: var(--accent-color);
    border-radius: 2px;
}

.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background-color: rgba(26, 26, 26, 0.95);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    z-index: 1000;
    padding: 1rem 0;
    border-bottom: 1px solid var(--border-color);
    box-shadow: var(--shadow-sm);
    transition: var(--transition-medium);
}

.navbar.scrolled {
    padding: 0.75rem 0;
    box-shadow: var(--shadow-md);
}

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

.nav-logo {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--accent-color);
    text-decoration: none;
    font-family: var(--font-secondary);
}

.logo-dot {
    color: var(--text-primary);
}

.nav-menu {
    display: flex;
    gap: var(--spacing-md);
}

.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.95rem;
    padding: 0.5rem 1rem;
    border-radius: var(--radius-sm);
    transition: var(--transition-fast);
}

.nav-link:hover {
    color: var(--accent-color);
    background-color: rgba(74, 108, 247, 0.1);
}

.nav-link.active {
    color: var(--accent-color);
    background-color: rgba(74, 108, 247, 0.1);
    font-weight: 600;
}

.nav-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
    flex-direction: column;
    gap: 4px;
}

.hamburger-line {
    display: block;
    width: 24px;
    height: 2px;
    background-color: var(--text-primary);
    transition: var(--transition-fast);
    border-radius: 1px;
}

.nav-toggle[aria-expanded="true"] .hamburger-line:nth-child(1) {
    transform: rotate(45deg) translate(6px, 6px);
}

.nav-toggle[aria-expanded="true"] .hamburger-line:nth-child(2) {
    opacity: 0;
}

.nav-toggle[aria-expanded="true"] .hamburger-line:nth-child(3) {
    transform: rotate(-45deg) translate(6px, -6px);
}
/* CSS Part 3: Hero and Code Snippet */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 100px 0 var(--spacing-xl);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 50%;
    height: 100%;
    background: radial-gradient(circle at 70% 50%, rgba(74, 108, 247, 0.1), transparent);
    z-index: -1;
}

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

.hero-content {
    animation: fadeInUp 0.8s ease-out;
}

.hero-badge {
    display: inline-block;
    background-color: rgba(74, 108, 247, 0.1);
    color: var(--accent-color);
    padding: 0.5rem 1rem;
    border-radius: 50px;
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    border: 1px solid rgba(74, 108, 247, 0.2);
}

.hero-title {
    font-size: 3rem;
    margin-bottom: var(--spacing-sm);
    line-height: 1.2;
}

.title-line {
    display: block;
    font-size: 1.5rem;
    color: var(--text-secondary);
    font-weight: 500;
}

.title-highlight {
    color: var(--accent-color);
    font-size: 3rem;
    display: inline-block;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-lg);
    font-weight: 500;
}

.hero-description {
    font-size: 1.125rem;
    color: var(--text-light);
    margin-bottom: var(--spacing-xl);
    line-height: 1.8;
}

.hero-buttons {
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

.hero-illustration {
    animation: fadeIn 0.8s ease-out 0.3s both;
}

.code-snippet {
    background-color: var(--card-bg);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--border-color);
}

.code-header {
    background-color: var(--secondary-bg);
    padding: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    border-bottom: 1px solid var(--border-color);
}

.code-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}

.code-dot.red { background-color: #ff5f56; }
.code-dot.yellow { background-color: #ffbd2e; }
.code-dot.green { background-color: #27ca3f; }

.code-filename {
    color: var(--text-secondary);
    font-family: var(--font-secondary);
    font-size: 0.9rem;
    margin-left: 1rem;
}

.code-content {
    padding: var(--spacing-lg);
    margin: 0;
    background-color: #1e1e1e;
}

.code-content code {
    font-family: 'Fira Code', 'Courier New', monospace;
    font-size: 0.95rem;
    line-height: 1.6;
    color: #d4d4d4;
    display: block;
}

.code-keyword {
    color: #569cd6;
}

.code-prop {
    color: #9cdcfe;
}

.code-string {
    color: #ce9178;
}
/* CSS Part 4: Buttons and Social */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.875rem 1.75rem;
    border-radius: var(--radius-md);
    font-weight: 600;
    text-decoration: none;
    transition: var(--transition-medium);
    cursor: pointer;
    border: none;
    font-family: inherit;
    font-size: 1rem;
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background-color: var(--accent-color);
    color: white;
}

.btn-primary:hover {
    background-color: var(--accent-hover);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

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

.btn-secondary:hover {
    background-color: rgba(74, 108, 247, 0.1);
    transform: translateY(-2px);
}

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

.btn-outline:hover {
    background-color: rgba(74, 108, 247, 0.1);
}

.social-section {
    padding: var(--spacing-xxl) 0;
    background-color: var(--secondary-bg);
}

.social-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 1rem;
    max-width: 800px;
    margin: 0 auto;
}

.social-card {
    background-color: var(--card-bg);
    padding: 1.5rem;
    border-radius: var(--radius-lg);
    text-decoration: none;
    color: var(--text-primary);
    transition: var(--transition-medium);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-sm);
}

.social-card:hover {
    transform: translateY(-5px);
    border-color: var(--accent-color);
    box-shadow: var(--shadow-lg);
}

.social-icon {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--secondary-bg);
    color: var(--accent-color);
    transition: var(--transition-medium);
}

.social-card:hover .social-icon {
    background-color: var(--accent-color);
    color: white;
    transform: scale(1.1);
}

.social-name {
    font-weight: 600;
    font-size: 0.95rem;
}
/* CSS Part 5: Identity and Education */
.identity-section {
    padding: var(--spacing-xl) 0;
}

.identity-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1rem;
}

.identity-card {
    background-color: var(--card-bg);
    padding: 1.5rem;
    border-radius: var(--radius-lg);
    text-align: center;
    border: 1px solid var(--border-color);
    transition: var(--transition-medium);
    box-shadow: var(--shadow-sm);
}

.identity-card:hover {
    transform: translateY(-3px);
    border-color: var(--accent-color);
    box-shadow: var(--shadow-md);
}

.identity-icon {
    width: 32px;
    height: 32px;
    color: var(--accent-color);
    margin: 0 auto var(--spacing-sm);
}

.identity-title {
    color: var(--accent-color);
    margin-bottom: 0.5rem;
    font-size: 1rem;
    font-weight: 600;
}

.identity-content {
    font-size: 1.1rem;
    font-weight: 500;
    color: var(--text-primary);
}

.education-section {
    padding: var(--spacing-xxl) 0;
    background-color: var(--secondary-bg);
}

.timeline {
    position: relative;
    max-width: 800px;
    margin: 0 auto var(--spacing-xl);
    padding-left: 2rem;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(to bottom, var(--accent-color), rgba(74, 108, 247, 0.2));
}

.timeline-item {
    position: relative;
    margin-bottom: var(--spacing-lg);
    opacity: 0;
    transform: translateX(-20px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.timeline-item.visible {
    opacity: 1;
    transform: translateX(0);
}

.timeline-item.current .timeline-content {
    border-color: var(--accent-color);
    box-shadow: 0 0 0 2px rgba(74, 108, 247, 0.1);
}

.timeline-dot {
    position: absolute;
    left: -1.5rem;
    top: 1rem;
    width: 12px;
    height: 12px;
    background-color: var(--accent-color);
    border-radius: 50%;
    box-shadow: 0 0 0 4px rgba(74, 108, 247, 0.2);
    z-index: 1;
}

.timeline-item.current .timeline-dot {
    background-color: var(--accent-color);
    box-shadow: 0 0 0 6px rgba(74, 108, 247, 0.3);
    transform: scale(1.2);
}

.timeline-content {
    background-color: var(--card-bg);
    padding: 1.5rem;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
    transition: var(--transition-medium);
    box-shadow: var(--shadow-sm);
}

.timeline-content:hover {
    border-color: var(--accent-color);
    transform: translateX(5px);
    box-shadow: var(--shadow-md);
}

.timeline-period {
    color: var(--accent-color);
    font-weight: 600;
    margin-bottom: 0.5rem;
    font-size: 0.9rem;
    display: inline-block;
    background-color: rgba(74, 108, 247, 0.1);
    padding: 0.25rem 0.75rem;
    border-radius: 50px;
}

.timeline-title {
    color: var(--text-primary);
    margin-bottom: 0.5rem;
    font-size: 1.25rem;
}

.timeline-subtitle {
    color: var(--accent-color);
    margin-bottom: 1rem;
    font-size: 1rem;
    font-weight: 500;
}

.timeline-subtitle a {
    color: var(--accent-color);
    text-decoration: none;
    transition: var(--transition-fast);
    border-bottom: 1px solid transparent;
}

.timeline-subtitle a:hover {
    border-bottom: 1px solid var(--accent-color);
}

.timeline-description {
    color: var(--text-light);
    line-height: 1.7;
    font-size: 0.95rem;
}

.institution-links {
    background-color: var(--card-bg);
    padding: 2rem;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
    max-width: 600px;
    margin: 0 auto;
    box-shadow: var(--shadow-sm);
}

.links-title {
    color: var(--text-primary);
    margin-bottom: 1.5rem;
    text-align: center;
    font-size: 1.25rem;
    font-weight: 600;
}

.links-grid {
    display: flex;
    justify-content: center;
    gap: 1rem;
    flex-wrap: wrap;
}

.institution-link {
    background-color: var(--secondary-bg);
    color: var(--text-primary);
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius-md);
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition-medium);
    border: 1px solid var(--border-color);
    font-size: 0.95rem;
}

.institution-link:hover {
    background-color: var(--accent-color);
    color: white;
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
    border-color: var(--accent-color);
}
/* CSS Part 6: Skills and Projects */
.skills-section {
    padding: var(--spacing-xxl) 0;
}

.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 2rem;
    max-width: 800px;
    margin: 0 auto;
}

.skill-card {
    background-color: var(--card-bg);
    padding: 2rem;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
    transition: var(--transition-medium);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
    box-shadow: var(--shadow-sm);
}

.skill-card:hover {
    border-color: var(--accent-color);
    transform: translateY(-5px) rotate(2deg);
    box-shadow: var(--shadow-lg);
}

.skill-icon {
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform 0.3s ease;
}

.skill-card:hover .skill-icon {
    transform: scale(1.1);
}

.skill-name {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-primary);
    text-align: center;
}

.projects-section {
    padding: var(--spacing-xxl) 0;
    background-color: var(--secondary-bg);
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
    max-width: 1000px;
    margin: 0 auto;
}

.project-card {
    background-color: var(--card-bg);
    padding: 1.5rem;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
    transition: var(--transition-medium);
    display: flex;
    flex-direction: column;
    height: 100%;
    box-shadow: var(--shadow-sm);
}

.project-card:hover {
    border-color: var(--accent-color);
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.project-title {
    color: var(--accent-color);
    margin-bottom: 1rem;
    font-size: 1.25rem;
    font-weight: 600;
}

.project-description {
    color: var(--text-light);
    margin-bottom: 1.5rem;
    line-height: 1.7;
    flex-grow: 1;
    font-size: 0.95rem;
}

.project-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--accent-color);
    text-decoration: none;
    font-weight: 600;
    padding: 0.5rem 0;
    transition: var(--transition-fast);
    align-self: flex-start;
    font-size: 0.95rem;
}

.project-link:hover {
    gap: 0.75rem;
    text-decoration: underline;
}
/* CSS Part 7: Contact */
.contact-section {
    padding: var(--spacing-xxl) 0;
    background-color: var(--secondary-bg);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    max-width: 1000px;
    margin: 0 auto;
}

.contact-info {
    padding-right: 1rem;
}

.contact-subtitle {
    color: var(--text-primary);
    margin-bottom: 1rem;
    font-size: 1.5rem;
    font-weight: 600;
}

.contact-text {
    color: var(--text-light);
    margin-bottom: 2rem;
    line-height: 1.7;
    font-size: 0.95rem;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    color: var(--text-primary);
    text-decoration: none;
    transition: var(--transition-fast);
    padding: 1rem;
    border-radius: var(--radius-md);
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-sm);
}

.contact-item:hover {
    border-color: var(--accent-color);
    transform: translateX(5px);
    box-shadow: var(--shadow-md);
}

.contact-icon {
    color: var(--accent-color);
    flex-shrink: 0;
}

.contact-form {
    background-color: var(--card-bg);
    padding: 2rem;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-lg);
}

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

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 0.875rem;
    background-color: var(--secondary-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-family: inherit;
    font-size: 0.95rem;
    transition: var(--transition-fast);
    resize: vertical;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent-color);
    box-shadow: 0 0 0 3px rgba(74, 108, 247, 0.1);
    background-color: var(--card-bg);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--text-light);
}

.error-message {
    color: var(--error-color);
    font-size: 0.875rem;
    margin-top: 0.5rem;
    display: none;
}

.form-group.error .error-message {
    display: block;
}

.form-group.error input,
.form-group.error textarea {
    border-color: var(--error-color);
}
/* CSS Part 8: Footer, Back to Top, Animations */
.footer {
    background-color: var(--card-bg);
    padding: 2rem 0;
    margin-top: var(--spacing-xxl);
    border-top: 1px solid var(--border-color);
}

.footer-content {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

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

.footer-logo {
    color: var(--accent-color);
    margin-bottom: 0.5rem;
    font-size: 1.5rem;
    font-weight: 700;
}

.footer-tagline {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.footer-seo {
    background-color: var(--secondary-bg);
    padding: 1.5rem;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
}

.seo-text {
    color: var(--text-light);
    font-size: 0.875rem;
    line-height: 1.6;
    text-align: center;
}

.footer-links {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 1rem;
    padding: 1.5rem 0;
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
}

.footer-link {
    color: var(--text-secondary);
    text-decoration: none;
    transition: var(--transition-fast);
    padding: 0.5rem 1rem;
    border-radius: var(--radius-sm);
    font-size: 0.95rem;
}

.footer-link:hover,
.footer-link.active {
    color: var(--accent-color);
    background-color: rgba(74, 108, 247, 0.05);
}

.footer-copyright {
    color: var(--text-light);
    font-size: 0.875rem;
    text-align: center;
    padding-top: 1.5rem;
    border-top: 1px solid var(--border-color);
}

.back-to-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 50px;
    height: 50px;
    background-color: var(--accent-color);
    color: white;
    border: none;
    border-radius: 50%;
    cursor: pointer;
    display: none;
    align-items: center;
    justify-content: center;
    transition: var(--transition-medium);
    z-index: 999;
    opacity: 0;
    transform: translateY(20px);
    box-shadow: var(--shadow-lg);
}

.back-to-top.visible {
    display: flex;
    opacity: 1;
    transform: translateY(0);
}

.back-to-top:hover {
    background-color: var(--accent-hover);
    transform: translateY(-3px);
    box-shadow: var(--shadow-xl);
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

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

.fade-in {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}
/* CSS Part 9: Responsive */
@media (max-width: 992px) {
    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 3rem;
    }
    
    .hero-illustration {
        order: -1;
        max-width: 500px;
        margin: 0 auto;
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .contact-info {
        padding-right: 0;
        text-align: center;
    }
    
    .contact-item {
        justify-content: center;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .title-highlight {
        font-size: 2.5rem;
    }
}

@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        background-color: var(--primary-bg);
        flex-direction: column;
        padding: 1.5rem;
        gap: 1rem;
        border-bottom: 1px solid var(--border-color);
        box-shadow: var(--shadow-lg);
        transform: translateY(-100%);
        opacity: 0;
        transition: var(--transition-medium);
        z-index: 999;
    }
    
    .nav-menu.active {
        transform: translateY(0);
        opacity: 1;
    }
    
    .nav-toggle {
        display: flex;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .title-highlight {
        font-size: 2rem;
    }
    
    .title-line {
        font-size: 1.25rem;
    }
    
    .hero-buttons {
        justify-content: center;
    }
    
    .btn {
        min-width: 180px;
    }
    
    .social-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .projects-grid {
        grid-template-columns: 1fr;
    }
    
    .skills-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1.5rem;
    }
    
    .timeline {
        padding-left: 1.5rem;
    }
    
    .timeline-dot {
        left: -1.25rem;
    }
}

@media (max-width: 480px) {
    .social-grid {
        grid-template-columns: 1fr;
    }
    
    .identity-grid {
        grid-template-columns: 1fr;
    }
    
    .skills-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1rem;
    }
    
    .links-grid {
        flex-direction: column;
        align-items: center;
    }
    
    .hero-title {
        font-size: 1.75rem;
    }
    
    .title-highlight {
        font-size: 1.75rem;
    }
    
    .section-title {
        font-size: 1.75rem;
    }
    
    .btn {
        width: 100%;
        max-width: 300px;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .container {
        padding: 0 1rem;
    }
    
    .timeline-content {
        padding: 1.25rem;
    }
    
    .skill-card {
        padding: 1.5rem;
    }
    
    .skill-icon {
        width: 50px;
        height: 50px;
    }
}