/* CSS Custom Properties (Variables) */
:root { 
    --color-primary: #1e40af;
    --color-primary-hover: #1d4ed8;
    --color-primary-light: #dbeafe;
    --color-primary-dark: #1e3a8a;
    
    /* Neutral Colors */
    --color-black: #1a1a1a;
    --color-white: #ffffff;
    --color-gray-50: #f9fafb;
    --color-gray-100: #f3f4f6;
    --color-gray-200: #e5e7eb;
    --color-gray-300: #d1d5db;
    --color-gray-400: #9ca3af;
    --color-gray-500: #6b7280;
    --color-gray-600: #4b5563;
    --color-gray-700: #374151;
    --color-gray-800: #1f2937;
    --color-gray-900: #111827;
    
    /* Background Colors */
    --bg-primary: #ffffff;
    --bg-secondary: #f8fafc;
    --bg-tertiary: #f3f4f6;
    --bg-dark: #1a1a1a;
    
    /* Text Colors */
    --text-primary: #1a1a1a;
    --text-secondary: #6b7280;
    --text-muted: #9ca3af;
    --text-white: #ffffff;
    
    /* Border Colors */
    --border-light: #e5e7eb;
    --border-medium: #d1d5db;
    --border-dark: #9ca3af;
    
    /* Shadow Colors */
    --shadow-light: rgba(0, 0, 0, 0.05);
    --shadow-medium: rgba(0, 0, 0, 0.1);
    --shadow-dark: rgba(0, 0, 0, 0.15);
    --shadow-primary: rgba(13, 148, 136, 0.3);
    
    /* Status Colors */
    --color-success: #10b981;
    --color-warning: #f59e0b;
    --color-error: #ef4444;
    --color-info: #3b82f6;
}

/* Modern CSS 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: var(--text-primary);
    background-color: var(--bg-primary);
    overflow-x: hidden;
}

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

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.2;
    margin-bottom: 1rem;
}

h1 { font-size: 3.5rem; }
h2 { font-size: 2.5rem; }
h3 { font-size: 1.75rem; }
h4 { font-size: 1.5rem; }
h5 { font-size: 1.25rem; }
h6 { font-size: 1.125rem; }

p {
    margin-bottom: 1rem;
    color: var(--text-secondary);
    font-size: 1.125rem;
    line-height: 1.7;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.875rem 1.5rem;
    border-radius: 0.5rem;
    text-decoration: none;
    font-weight: 500;
    font-size: 1rem;
    transition: all 0.3s ease;
    border: 2px solid transparent;
    cursor: pointer;
}

.btn-primary {
    background: var(--color-primary);
    color: var(--text-white);
    border-color: transparent;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 25px var(--shadow-primary);
}

.btn-secondary {
    background: transparent;
    color: var(--color-primary);
    border-color: var(--color-primary);
}

.btn-secondary:hover {
    background: var(--color-primary);
    color: var(--text-white);
    transform: translateY(-2px);
}

.btn-outline {
    background: transparent;
    color: var(--text-secondary);
    border-color: var(--border-light);
}

.btn-outline:hover {
    background: var(--color-gray-50);
    color: var(--color-gray-700);
    border-color: var(--border-medium);
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(229, 231, 235, 0.5);
    z-index: 1000;
    transition: all 0.3s ease;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
}

.nav-logo a {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-primary);
    text-decoration: none;
}

.nav-menu {
    display: flex;
    gap: 2rem;
    align-items: center;
}

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

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

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

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

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 4px;
}

.bar {
    width: 25px;
    height: 3px;
    background: var(--text-primary);
    transition: 0.3s;
    border-radius: 2px;
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    background: linear-gradient(135deg, var(--bg-secondary) 0%, #e2e8f0 100%);
    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="25" cy="25" r="1" fill="%23667eea" opacity="0.1"/><circle cx="75" cy="75" r="1" fill="%23764ba2" opacity="0.1"/><circle cx="50" cy="10" r="0.5" fill="%23667eea" opacity="0.1"/><circle cx="10" cy="60" r="0.5" fill="%23764ba2" opacity="0.1"/><circle cx="90" cy="40" r="0.5" fill="%23667eea" opacity="0.1"/></pattern></defs><rect width="100" height="100" fill="url(%23grain)"/></svg>');
    opacity: 0.3;
}

.hero-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-content {
    max-width: 600px;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    line-height: 1.1;
    margin-bottom: 1.5rem;
    color: var(--text-primary);
}

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

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
    line-height: 1.6;
}

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

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

.social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    background: var(--text-white);
    border-radius: 50%;
    color: var(--text-secondary);
    text-decoration: none;
    transition: all 0.3s ease;
    box-shadow: 0 4px 6px var(--shadow-light);
}

.social-link:hover {
    color: var(--color-primary);
    transform: translateY(-2px);
    box-shadow: 0 8px 15px var(--shadow-dark);
}

/* Hero Card */
.hero-image {
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero-card {
    background: white;
    border-radius: 1rem;
    box-shadow: 0 20px 40px var(--shadow-medium);
    overflow: hidden;
    max-width: 400px;
    width: 100%;
}

.card-header {
    background: var(--bg-secondary);
    padding: 1rem;
    border-bottom: 1px solid var(--border-light);
}

.card-dots {
    display: flex;
    gap: 0.5rem;
}

.card-dots span {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--border-medium);
}

.card-dots span:first-child {
    background: #ef4444;
}

.card-dots span:nth-child(2) {
    background: #f59e0b;
}

.card-dots span:last-child {
    background: #10b981;
}

.card-content {
    padding: 1.5rem;
    font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
    font-size: 0.875rem;
    line-height: 1.6;
}

.code-line {
    margin-bottom: 0.5rem;
}

.code-keyword {
    color: #7c3aed;
    font-weight: 600;
}

.code-variable {
    color: #059669;
}

.code-operator {
    color: #dc2626;
}

.code-string {
    color: var(--color-primary);
}

.code-function {
    color: #2563eb;
}

.code-bracket {
    color: #dc2626;
}

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

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 1rem;
}

.section-subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

/* About Section */
.about {
    background: white;
}

.about-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 4rem;
    align-items: center;
}

.about-description {
    font-size: 1.125rem;
    margin-bottom: 1.5rem;
}

.about-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
    margin-top: 2rem;
}

.stat {
    text-align: center;
}

.stat h3 {
    font-size: 2rem;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: 0.5rem;
}

.stat p {
    color: var(--text-secondary);
    font-size: 0.875rem;
    font-weight: 500;
}

.profile-image {
    width: 100%;
    max-width: 300px;
    height: 300px;
    object-fit: cover;
    border-radius: 1rem;
    box-shadow: 0 20px 40px var(--shadow-medium);
}

/* Projects Section */
.projects {
    background: var(--bg-secondary);
}

.projects-grid {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 2rem;
}

.project-card {
    background: var(--text-white);
    border-radius: 1rem;
    padding: 2rem;
    box-shadow: 0 4px 6px var(--shadow-light);
    transition: all 0.3s ease;
    border: 1px solid var(--border-light);
}

.project-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 20px 40px var(--shadow-medium);
}

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

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

.project-header-left {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.project-logo {
    width: 60px;
    height: 60px;
    border-radius: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-white);
    font-size: 1.5rem;
}

.project-logo-img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    border-radius: 1rem;
}

.logo-placeholder {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    height: 100%;
}

.project-badge {
    background: var(--color-primary);
    color: var(--text-white);
    padding: 0.25rem 0.75rem;
    border-radius: 1rem;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.project-title {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0;
}

.project-description {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

.project-features {
    margin-bottom: 2rem;
}

.feature {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 0.75rem;
    color: var(--text-secondary);
    font-size: 0.875rem;
}

.feature i {
    color: var(--color-primary);
    width: 16px;
}

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

.coming-soon {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    background: linear-gradient(135deg, var(--bg-secondary) 0%, #e2e8f0 100%);
    border: 2px dashed var(--border-medium);
}

.coming-soon-icon {
    width: 80px;
    height: 80px;
    background: var(--border-light);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-muted);
    font-size: 2rem;
    margin-bottom: 1rem;
}

/* Articles Section */
.articles {
    background: white;
}

.articles-content {
    display: flex;
    flex-direction: column;
    gap: 4rem;
}

.article-series {
    background: linear-gradient(135deg, var(--bg-secondary) 0%, #e2e8f0 100%);
    border-radius: 1rem;
    padding: 3rem;
    border: 1px solid var(--border-light);
}

.series-header {
    margin-bottom: 1.5rem;
}

.series-badge {
    background: var(--color-primary);
    color: white;
    padding: 0.25rem 0.75rem;
    border-radius: 1rem;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    display: inline-block;
    margin-bottom: 1rem;
}

.series-title {
    font-size: 1.75rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 1rem;
}

.series-description {
    color: var(--text-secondary);
    font-size: 1.125rem;
    margin-bottom: 2rem;
    line-height: 1.6;
}

.series-topics h4 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 1.5rem;
}

.topics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1rem;
    margin-bottom: 2rem;
}

.topic-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem;
    background: white;
    border-radius: 0.5rem;
    border: 1px solid var(--border-light);
    transition: all 0.3s ease;
}

.topic-item.article-item {
    padding: 0.75rem 1rem 1rem 1rem;
    align-items: flex-start;
    position: relative;
}

.topic-item:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 6px var(--shadow-medium);
}

.topic-item i {
    color: var(--color-primary);
    font-size: 1.25rem;
}

.topic-item span {
    color: var(--color-gray-700);
    font-weight: 500;
}

/* Article items in topics grid */
.article-item {
    text-decoration: none;
    color: inherit;
    cursor: pointer;
}

.article-item:hover {
    text-decoration: none;
    color: inherit;
}

.article-content {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    flex: 1;
    margin-left: 0.5rem;
}

.article-number {
    position: absolute;
    top: -0.5rem;
    left: -0.75rem;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--color-primary);
    background: var(--color-primary-light);
    padding: 0.25rem 0.5rem;
    border-radius: 0.25rem;
    width: fit-content;
    z-index: 1;
}

.article-item i {
    position: absolute;
    top: 2.5rem;
    left: 0.8rem;
    font-size: 1rem;
    color: var(--color-primary);
}

.topics-grid .article-title {
    color: var(--color-gray-700);
    font-weight: 500;
    font-size: 0.9rem;
    line-height: 1.4;
    margin-top: 0.5rem;
    margin-left: 1rem;
}

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

/* Modal Styles */
.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(4px);
}

.modal-content {
    background-color: var(--text-white);
    margin: 5% auto;
    padding: 0;
    border-radius: 1rem;
    width: 90%;
    max-width: 600px;
    box-shadow: 0 20px 40px var(--shadow-dark);
    animation: modalSlideIn 0.3s ease;
}

@keyframes modalSlideIn {
    from {
        opacity: 0;
        transform: translateY(-50px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 2rem 2rem 1rem 2rem;
    border-bottom: 1px solid var(--border-light);
}

.modal-header h3 {
    margin: 0;
    color: var(--text-primary);
    font-size: 1.5rem;
    font-weight: 600;
}

.modal-close {
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--text-muted);
    cursor: pointer;
    padding: 0.5rem;
    border-radius: 0.5rem;
    transition: all 0.3s ease;
}

.modal-close:hover {
    background: var(--color-gray-100);
    color: var(--text-primary);
}

.modal-body {
    padding: 2rem;
}

/* Form Styles */
.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
    font-weight: 500;
    font-size: 0.9rem;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 1px solid var(--border-light);
    border-radius: 0.5rem;
    font-size: 1rem;
    transition: all 0.3s ease;
    background: var(--text-white);
    color: var(--text-primary);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px var(--color-primary-light);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

.form-actions {
    display: flex;
    gap: 1rem;
    justify-content: flex-end;
    margin-top: 2rem;
}

/* Responsive Modal */
@media (max-width: 768px) {
    .modal-content {
        margin: 10% auto;
        width: 95%;
    }
    
    .modal-header,
    .modal-body {
        padding: 1.5rem;
    }
    
    .form-actions {
        flex-direction: column;
    }
    
    .form-actions .btn {
        width: 100%;
    }
}

.cto-insights {
    background: white;
    border-radius: 1rem;
    padding: 3rem;
    border: 1px solid var(--border-light);
}

.insights-title {
    font-size: 1.75rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 1rem;
}

.insights-description {
    color: var(--text-secondary);
    font-size: 1.125rem;
    margin-bottom: 2rem;
    line-height: 1.6;
}

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

.category-card {
    padding: 2rem;
    background: var(--bg-secondary);
    border-radius: 1rem;
    border: 1px solid var(--border-light);
    transition: all 0.3s ease;
}

.category-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 15px var(--shadow-medium);
}

.category-icon {
    width: 60px;
    height: 60px;
    background: var(--color-primary);
    border-radius: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
}

.category-card h4 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 1rem;
}

.category-card ul {
    list-style: none;
    padding: 0;
}

.category-card li {
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
    padding-left: 1.5rem;
    position: relative;
}

.category-card li::before {
    content: '•';
    color: var(--color-primary);
    font-weight: bold;
    position: absolute;
    left: 0;
}

/* Resume Section */
.resume {
    background: var(--bg-secondary);
}

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

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

.timeline-item {
    position: relative;
    margin-bottom: 3rem;
    padding-left: 5rem;
}

.timeline-marker {
    position: absolute;
    left: 1.5rem;
    top: 0.5rem;
    width: 1rem;
    height: 1rem;
    background: white;
    border: 3px solid var(--color-primary);
    border-radius: 50%;
    z-index: 1;
}

.timeline-content {
    background: white;
    border-radius: 1rem;
    padding: 2rem;
    box-shadow: 0 4px 6px var(--shadow-light);
    border: 1px solid var(--border-light);
    transition: all 0.3s ease;
}

.timeline-content:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 15px var(--shadow-medium);
}

.timeline-header {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    margin-bottom: 1rem;
}

.company-logo {
    width: 60px;
    height: 60px;
    border-radius: 0.5rem;
    overflow: hidden;
    flex-shrink: 0;
}

.company-logo img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    background: white;
    padding: 0.5rem;
}

.timeline-title h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.25rem;
}

.timeline-period {
    color: var(--text-secondary);
    font-size: 0.875rem;
    font-weight: 500;
}

.timeline-description {
    list-style: none;
    padding: 0;
}

.timeline-description li {
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
    padding-left: 1.5rem;
    position: relative;
    line-height: 1.6;
}

.timeline-description li::before {
    content: '•';
    color: var(--color-primary);
    font-weight: bold;
    position: absolute;
    left: 0;
}

/* Contact Section */
.contact {
    background: white;
}

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

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.contact-icon {
    width: 60px;
    height: 60px;
    background: var(--color-primary);
    border-radius: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.5rem;
    flex-shrink: 0;
}

.contact-details h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.25rem;
}

.contact-details p {
    color: var(--text-secondary);
    margin: 0;
}

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

/* Footer */
.footer {
    background: var(--text-primary);
    color: white;
    padding: 2rem 0;
}

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

.footer-text p {
    color: var(--text-muted);
    margin: 0;
}

.footer-social {
    display: flex;
    gap: 1rem;
}

.footer .social-link {
    background: var(--color-gray-700);
    color: var(--text-muted);
}

.footer .social-link:hover {
    background: var(--color-primary);
    color: white;
}

/* 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 var(--shadow-light);
        padding: 2rem 0;
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .hamburger.active .bar:nth-child(2) {
        opacity: 0;
    }
    
    .hamburger.active .bar:nth-child(1) {
        transform: translateY(7px) rotate(45deg);
    }
    
    .hamburger.active .bar:nth-child(3) {
        transform: translateY(-7px) rotate(-45deg);
    }
    
    .hero-container {
        grid-template-columns: 1fr;
        gap: 2rem;
        text-align: center;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-actions {
        justify-content: center;
        flex-wrap: wrap;
    }
    
    .about-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .about-stats {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .projects-grid {
        grid-template-columns: 1fr;
    }
    
    .topics-grid {
        grid-template-columns: 1fr;
    }
    
    .insights-categories {
        grid-template-columns: 1fr;
    }
    
    .timeline::before {
        left: 1rem;
    }
    
    .timeline-item {
        padding-left: 3rem;
    }
    
    .timeline-marker {
        left: 0.5rem;
    }
    
    .contact-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .footer-content {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }
    
    .project-actions {
        flex-direction: column;
    }
    
    .series-actions {
        flex-direction: column;
    }
    
    .contact-actions {
        flex-direction: column;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .about-stats {
        grid-template-columns: 1fr;
    }
    
    .timeline-content {
        padding: 1.5rem;
    }
    
    .timeline-header {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .company-logo {
        width: 50px;
        height: 50px;
    }
}