* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html, body {
    overflow-x: hidden;
    max-width: 100vw;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
    min-height: 100vh;
    padding-top: 80px;
}

.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 20px 50px;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(15px);
    z-index: 10000;
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.1);
}

.navbar-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
    max-width: 1200px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 24px;
    font-weight: 600;
    color: #333;
}

.logo-circle {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: bold;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 20px;
    align-items: center;
    margin-left: 60px;
}

.menu-header {
    display: none;
}

.nav-menu a {
    text-decoration: none;
    color: #666;
    font-weight: 500;
    padding: 8px 16px;
    border-radius: 20px;
    transition: all 0.3s;
}

.nav-menu a.active,
.nav-menu a:hover {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
}

.contact-btn {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%) !important;
    color: white !important;
    padding: 12px 24px !important;
    border-radius: 25px !important;
}

.menu-toggle {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 5px;
    padding: 8px;
    border-radius: 8px;
    transition: all 0.3s ease;
}

.menu-toggle:hover {
    background: rgba(102, 126, 234, 0.1);
}

.menu-toggle span {
    width: 28px;
    height: 3px;
    background: #333;
    border-radius: 3px;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    transform-origin: center;
}

.menu-toggle.active span {
    background: #667eea;
}

.menu-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(7px, 7px);
}

.menu-toggle.active span:nth-child(2) {
    opacity: 0;
    transform: scale(0);
}

.menu-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -7px);
}

.hero {
    padding: 40px 50px 80px;
    max-width: 1200px;
    margin: 0 auto;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
    margin-bottom: 80px;
}

.hero-text h1 {
    font-size: 48px;
    font-weight: 700;
    color: #333;
    margin-bottom: 24px;
    line-height: 1.2;
}

.hero-text p {
    font-size: 18px;
    color: #666;
    line-height: 1.6;
    margin-bottom: 32px;
}

.highlight {
    color: #667eea;
    font-weight: 600;
}

.cta-btn {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
    padding: 16px 32px;
    border-radius: 30px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.3s;
}

.cta-btn:hover {
    transform: translateY(-2px);
}

.whatsapp-btn {
    background: #25D366;
    color: white;
    border: none;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    font-size: 24px;
    cursor: pointer;
    transition: all 0.3s;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 15px rgba(37, 211, 102, 0.3);
}

.whatsapp-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(37, 211, 102, 0.4);
}

.scroll-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
    border-radius: 50%;
    font-size: 18px;
    cursor: pointer;
    transition: all 0.3s;
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.3);
}

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

.scroll-to-top:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(102, 126, 234, 0.4);
}

.whatsapp-fixed {
    position: fixed;
    bottom: 100px;
    right: 30px;
    width: 60px;
    height: 60px;
    background: #25D366;
    color: white;
    border-radius: 50%;
    font-size: 28px;
    cursor: pointer;
    transition: all 0.3s;
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 15px rgba(37, 211, 102, 0.3);
    text-decoration: none;
    animation: pulse 2s infinite;
}

.whatsapp-fixed:hover {
    transform: translateY(-3px) scale(1.1);
    box-shadow: 0 6px 20px rgba(37, 211, 102, 0.5);
    color: white;
}

@keyframes pulse {
    0% {
        box-shadow: 0 4px 15px rgba(37, 211, 102, 0.3);
    }
    50% {
        box-shadow: 0 4px 15px rgba(37, 211, 102, 0.6), 0 0 0 10px rgba(37, 211, 102, 0.1);
    }
    100% {
        box-shadow: 0 4px 15px rgba(37, 211, 102, 0.3);
    }
}

.dark-mode-toggle {
    margin-left: 20px;
    cursor: pointer;
}

.toggle-switch {
    width: 50px;
    height: 25px;
    background: #ddd;
    border-radius: 25px;
    position: relative;
    transition: all 0.3s;
}

.toggle-slider {
    width: 21px;
    height: 21px;
    background: white;
    border-radius: 50%;
    position: absolute;
    top: 2px;
    left: 2px;
    transition: all 0.3s;
    box-shadow: 0 2px 5px rgba(0,0,0,0.2);
}

.dark-mode .toggle-switch {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.dark-mode .toggle-slider {
    transform: translateX(25px);
}

/* Dark Mode Styles */
.dark-mode {
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%) !important;
    color: #e0e0e0 !important;
}

.dark-mode .navbar {
    background: rgba(26, 26, 46, 0.95) !important;
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.3) !important;
}

.dark-mode .nav-menu a {
    color: #b0b0b0 !important;
}

.dark-mode .nav-menu a:hover,
.dark-mode .nav-menu a.active {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%) !important;
    color: white !important;
}

.dark-mode .logo {
    color: #e0e0e0 !important;
}

.dark-mode .hero-text h1,
.dark-mode .about-text h2,
.dark-mode .process-text h2,
.dark-mode .portfolio-header h2,
.dark-mode .blog-header h2,
.dark-mode .services-header h2,
.dark-mode .skills-header h2,
.dark-mode .certificates-header h2,
.dark-mode .experience-header h2 {
    color: #e0e0e0 !important;
}

.dark-mode .hero-text p,
.dark-mode .about-text p,
.dark-mode .process-text p,
.dark-mode .portfolio-header p,
.dark-mode .blog-header p,
.dark-mode .services-header p,
.dark-mode .skills-header p,
.dark-mode .certificates-header p,
.dark-mode .experience-header p {
    color: #c0c0c0 !important;
}

.dark-mode .stat-item,
.dark-mode .step,
.dark-mode .portfolio-item,
.dark-mode .blog-item,
.dark-mode .service-item,
.dark-mode .skill-category,
.dark-mode .skill-item,
.dark-mode .certificate-item,
.dark-mode .timeline-item,
.dark-mode .education-item {
    background: rgba(255, 255, 255, 0.1) !important;
    color: #e0e0e0 !important;
    border-color: rgba(255, 255, 255, 0.2) !important;
}

.dark-mode .stat-label,
.dark-mode .step h3,
.dark-mode .step p,
.dark-mode .portfolio-info h3,
.dark-mode .portfolio-info p,
.dark-mode .blog-info h3,
.dark-mode .service-item h3,
.dark-mode .service-item p,
.dark-mode .skill-item span,
.dark-mode .certificate-info h3,
.dark-mode .timeline-content h3,
.dark-mode .timeline-content p,
.dark-mode .education-content h3,
.dark-mode .timeline-content h4,
.dark-mode .education-content h4,
.dark-mode .education-details,
.dark-mode .specializations,
.dark-mode .specializations li,
.dark-mode .project-highlights li {
    color: #e0e0e0 !important;
}

.dark-mode .certificate-description {
    color: #b0b0b0 !important;
    background: rgba(255, 255, 255, 0.1) !important;
    border-left-color: #667eea !important;
}

.dark-mode .certificate-issuer {
    color: #8a9cff !important;
}

.dark-mode .certificate-date {
    color: #888 !important;
}

.dark-mode .timeline-date {
    color: #e0e0e0 !important;
    background: rgba(102, 126, 234, 0.2) !important;
}

.dark-mode .gpa {
    color: #4CAF50 !important;
}

.dark-mode .specializations strong {
    color: #e0e0e0 !important;
}

.dark-mode .project-highlights ul {
    color: #c0c0c0 !important;
}

.dark-mode .skill-tag {
    background: rgba(102, 126, 234, 0.3) !important;
    color: #8a9cff !important;
}

.dark-mode .skill-category h3 {
    color: #e0e0e0 !important;
}

.dark-mode .skill-subcategory h4 {
    color: #c0c0c0 !important;
    border-bottom-color: #667eea !important;
}

.dark-mode .case-study-link {
    color: #c0c0c0 !important;
}

.dark-mode .case-study-link:hover {
    color: #8a9cff !important;
    border-color: #8a9cff !important;
    background: rgba(138, 156, 255, 0.1) !important;
}

.dark-mode .portfolio-category {
    color: #8a9cff !important;
}

.dark-mode .tech-tag {
    background: rgba(102, 126, 234, 0.2) !important;
    color: #8a9cff !important;
    border-color: rgba(138, 156, 255, 0.3) !important;
}

.dark-mode .about,
.dark-mode .portfolio,
.dark-mode .services,
.dark-mode .certificates {
    background: rgba(255, 255, 255, 0.05) !important;
}

.dark-mode .process,
.dark-mode .blog,
.dark-mode .skills,
.dark-mode .experience {
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%) !important;
}

.dark-mode .contact-content {
    background: rgba(255, 255, 255, 0.1) !important;
}

.dark-mode .contact-info h2,
.dark-mode .contact-info p,
.dark-mode .contact-value,
.dark-mode .contact-label {
    color: #e0e0e0 !important;
}

.dark-mode .form-row input,
.dark-mode .form-row textarea {
    background: rgba(255, 255, 255, 0.1) !important;
    border-color: rgba(255, 255, 255, 0.2) !important;
    color: #e0e0e0 !important;
}

.dark-mode .form-row input::placeholder,
.dark-mode .form-row textarea::placeholder {
    color: white !important;
}

.dark-mode #nameError,
.dark-mode #emailError,
.dark-mode #phoneError,
.dark-mode #subjectError,
.dark-mode #messageError {
    color: #ff6b6b !important;
    background: rgba(255, 107, 107, 0.1) !important;
    padding: 5px 8px !important;
    border-radius: 4px !important;
}

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

.profile-photo {
    width: 400px;
    height: 500px;
    object-fit: contain;
    object-position: center;
    border-radius: 20px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
    background: white;
    padding: 10px;
}

.stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 15px;
    max-width: 450px;
    margin-top: 40px;
}

.stat-item {
    background: rgba(255, 255, 255, 0.9);
    padding: 20px 15px;
    border-radius: 15px;
    text-align: center;
    backdrop-filter: blur(15px);
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.stat-number {
    font-size: 24px;
    font-weight: 700;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 5px;
    line-height: 1;
}

.stat-label {
    color: #666;
    font-size: 12px;
    font-weight: 500;
    line-height: 1.3;
}

.about {
    padding: 100px 50px;
    background: rgba(255, 255, 255, 0.5);
    min-height: 100vh;
    display: flex;
    align-items: center;
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
}

.about-image {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.about-photo {
    width: 350px;
    height: 400px;
    object-fit: contain;
    object-position: center;
    border-radius: 20px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
    margin-bottom: 30px;
    background: white;
    padding: 10px;
}

.social-links {
    display: flex;
    gap: 15px;
    background: white;
    padding: 15px 25px;
    border-radius: 50px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.social-links a {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    text-decoration: none;
    transition: transform 0.3s;
}

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

.about-text h2 {
    font-size: 42px;
    font-weight: 700;
    color: #333;
    margin-bottom: 30px;
    line-height: 1.2;
}

.about-text p {
    font-size: 16px;
    color: #666;
    line-height: 1.6;
    margin-bottom: 20px;
}

.about-buttons {
    display: flex;
    gap: 20px;
    margin-top: 40px;
}

.projects-btn {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
    padding: 16px 32px;
    border-radius: 30px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.3s;
}

.download-btn {
    background: rgba(255, 255, 255, 0.8);
    color: #333;
    border: 2px solid #ddd;
    padding: 16px 32px;
    border-radius: 30px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
}

.hire-btn {
    background: linear-gradient(135deg, #4CAF50, #45a049);
    color: white;
    border: none;
    padding: 16px 32px;
    border-radius: 30px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
}

.projects-btn:hover,
.hire-btn:hover,
.download-btn:hover {
    transform: translateY(-2px);
}

.process {
    padding: 100px 50px;
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
}

.process-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: start;
    max-width: 1200px;
    margin: 0 auto;
}

.process-text h2 {
    font-size: 48px;
    font-weight: 700;
    color: #333;
    margin-bottom: 30px;
    line-height: 1.2;
}

.process-text p {
    font-size: 16px;
    color: #666;
    line-height: 1.6;
    margin-bottom: 20px;
}

.process-steps {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
}

.step {
    background: rgba(255, 255, 255, 0.8);
    padding: 30px;
    border-radius: 20px;
    text-align: center;
    backdrop-filter: blur(10px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s;
}

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

.step-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    margin: 0 auto 20px;
    color: white;
}

.step h3 {
    font-size: 20px;
    font-weight: 600;
    color: #333;
    margin-bottom: 15px;
}

.step p {
    font-size: 14px;
    color: #666;
    line-height: 1.5;
}

.portfolio {
    padding: 100px 50px;
    background: rgba(255, 255, 255, 0.5);
    min-height: 100vh;
}

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

.portfolio-header {
    text-align: center;
    margin-bottom: 60px;
}

.portfolio-header h2 {
    font-size: 48px;
    font-weight: 700;
    color: #333;
    margin-bottom: 20px;
}

.portfolio-header p {
    font-size: 16px;
    color: #666;
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.6;
}

.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.portfolio-item {
    background: white;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s, box-shadow 0.3s;
}

.portfolio-item:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

.portfolio-image {
    width: 100%;
    height: 250px;
    overflow: hidden;
}

.portfolio-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s;
}

.portfolio-item:hover .portfolio-image img {
    transform: scale(1.05);
}

.portfolio-info {
    padding: 25px;
}

.portfolio-category {
    font-size: 12px;
    color: #667eea;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.portfolio-info h3 {
    font-size: 20px;
    font-weight: 600;
    color: #333;
    margin: 10px 0 15px;
}

.portfolio-info p {
    font-size: 14px;
    color: #666;
    line-height: 1.5;
    margin-bottom: 15px;
}

.portfolio-tech {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-bottom: 15px;
}

.tech-tag {
    background: rgba(102, 126, 234, 0.1);
    color: #667eea;
    padding: 4px 8px;
    border-radius: 12px;
    font-size: 11px;
    font-weight: 500;
    border: 1px solid rgba(102, 126, 234, 0.2);
}

.case-study-link {
    color: #333;
    text-decoration: none;
    font-weight: 600;
    font-size: 14px;
    padding: 10px 20px;
    border: 2px solid transparent;
    border-radius: 25px;
    display: inline-block;
    transition: all 0.3s;
}

.case-study-link:hover {
    color: #667eea;
    border-color: #667eea;
    background: rgba(102, 126, 234, 0.1);
}



.portfolio-more {
    text-align: center;
    margin-top: 50px;
}

.more-project-btn {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
    padding: 16px 32px;
    border-radius: 30px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.3s;
}

.more-project-btn:hover {
    transform: translateY(-2px);
}

.cta-section {
    background: #2c3e50;
    padding: 100px 50px;
    text-align: center;
}

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

.cta-content h2 {
    font-size: 42px;
    font-weight: 700;
    color: white;
    margin-bottom: 30px;
    line-height: 1.2;
}

.cta-content p {
    font-size: 16px;
    color: #bdc3c7;
    margin-bottom: 40px;
    line-height: 1.6;
}

.work-together-btn {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
    padding: 18px 36px;
    border-radius: 30px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.3s;
}

.work-together-btn:hover {
    transform: translateY(-2px);
}

.blog {
    padding: 100px 50px;
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
}

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

.blog-header {
    text-align: center;
    margin-bottom: 60px;
}

.blog-header h2 {
    font-size: 48px;
    font-weight: 700;
    color: #333;
    margin-bottom: 20px;
}

.blog-header p {
    font-size: 16px;
    color: #666;
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.6;
}

.blog-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
    margin-bottom: 40px;
}

.blog-item {
    background: white;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s;
    cursor: pointer;
}

.blog-item:hover {
    transform: translateY(-5px);
}

.blog-image {
    width: 100%;
    height: 200px;
    overflow: hidden;
}

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

.blog-info {
    padding: 20px;
}

.blog-meta {
    font-size: 12px;
    color: #999;
    margin-bottom: 10px;
}

.blog-info h3 {
    font-size: 16px;
    font-weight: 600;
    color: #333;
    line-height: 1.4;
    margin-bottom: 10px;
}

.blog-pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 20px;
}

.pagination-btn {
    width: 40px;
    height: 40px;
    border: 2px solid #ddd;
    background: white;
    border-radius: 50%;
    font-size: 16px;
    font-weight: bold;
    color: #666;
    cursor: pointer;
    transition: all 0.3s;
    display: flex;
    align-items: center;
    justify-content: center;
}

.pagination-btn:hover {
    border-color: #667eea;
    color: #667eea;
    background: rgba(102, 126, 234, 0.1);
}

.pagination-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    border-color: #ddd;
    color: #999;
}

.pagination-btn:disabled:hover {
    border-color: #ddd;
    color: #999;
    background: white;
}

.pagination-info {
    font-size: 14px;
    color: #666;
    font-weight: 500;
    min-width: 40px;
    text-align: center;
}

.blog-view-more {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
    margin-top: 10px;
}

.blog-view-more:hover {
    transform: translateY(-2px);
}

.blog-modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    z-index: 10000;
    align-items: center;
    justify-content: center;
    padding: 20px;
    backdrop-filter: blur(5px);
}

.blog-modal-content {
    background: white;
    border-radius: 20px;
    max-width: 800px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    position: relative;
    animation: modalSlideIn 0.3s ease;
}

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

.blog-modal-header {
    position: sticky;
    top: 0;
    background: white;
    padding: 20px 30px 0;
    display: flex;
    justify-content: flex-end;
    border-radius: 20px 20px 0 0;
    z-index: 1;
}

.blog-modal-close {
    background: none;
    border: none;
    font-size: 30px;
    color: #666;
    cursor: pointer;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s;
}

.blog-modal-close:hover {
    background: rgba(102, 126, 234, 0.1);
    color: #667eea;
}

.blog-modal-body {
    padding: 0 30px 30px;
}

.blog-modal-image {
    width: 100%;
    height: 300px;
    overflow: hidden;
    border-radius: 15px;
    margin-bottom: 25px;
}

.blog-modal-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.blog-modal-meta {
    font-size: 14px;
    color: #999;
    margin-bottom: 15px;
    font-weight: 500;
}

.blog-modal-info h1 {
    font-size: 32px;
    font-weight: 700;
    color: #333;
    margin-bottom: 25px;
    line-height: 1.3;
}

.blog-modal-content-text {
    font-size: 16px;
    line-height: 1.7;
    color: #444;
    margin-bottom: 30px;
}

.blog-modal-content-text h3 {
    font-size: 22px;
    font-weight: 600;
    color: #333;
    margin: 30px 0 15px;
}

.blog-modal-content-text p {
    margin-bottom: 20px;
}

.blog-modal-content-text ul {
    margin: 20px 0;
    padding-left: 25px;
}

.blog-modal-content-text li {
    margin-bottom: 10px;
    line-height: 1.6;
}

.blog-modal-content-text strong {
    color: #667eea;
    font-weight: 600;
}

.blog-modal-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    padding-top: 20px;
    border-top: 1px solid #eee;
}

.blog-tag {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 500;
}

@media (max-width: 768px) {
    .blog-modal {
        padding: 10px;
    }
    
    .blog-modal-content {
        max-height: 95vh;
    }
    
    .blog-modal-header {
        padding: 15px 20px 0;
    }
    
    .blog-modal-body {
        padding: 0 20px 20px;
    }
    
    .blog-modal-info h1 {
        font-size: 24px;
    }
    
    .blog-modal-content-text {
        font-size: 15px;
    }
    
    .blog-modal-content-text h3 {
        font-size: 20px;
    }
    
    .blog-modal-image {
        height: 200px;
    }
}

.blog-view-more {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
    margin-top: 10px;
}

.blog-view-more:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(102, 126, 234, 0.3);
}

.blog-modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    z-index: 10000;
    align-items: center;
    justify-content: center;
    padding: 20px;
    backdrop-filter: blur(5px);
}

.blog-modal-content {
    background: white;
    border-radius: 20px;
    max-width: 800px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    position: relative;
    animation: modalSlideIn 0.3s ease;
}

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

.blog-modal-header {
    position: sticky;
    top: 0;
    background: white;
    padding: 20px 30px 0;
    display: flex;
    justify-content: flex-end;
    border-radius: 20px 20px 0 0;
    z-index: 1;
}

.blog-modal-close {
    background: none;
    border: none;
    font-size: 30px;
    color: #666;
    cursor: pointer;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s;
}

.blog-modal-close:hover {
    background: rgba(102, 126, 234, 0.1);
    color: #667eea;
}

.blog-modal-body {
    padding: 0 30px 30px;
}

.blog-modal-image {
    width: 100%;
    height: 300px;
    overflow: hidden;
    border-radius: 15px;
    margin-bottom: 25px;
}

.blog-modal-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.blog-modal-meta {
    font-size: 14px;
    color: #999;
    margin-bottom: 15px;
    font-weight: 500;
}

.blog-modal-info h1 {
    font-size: 32px;
    font-weight: 700;
    color: #333;
    margin-bottom: 25px;
    line-height: 1.3;
}

.blog-modal-content-text {
    font-size: 16px;
    line-height: 1.7;
    color: #444;
    margin-bottom: 30px;
}

.blog-modal-content-text h3 {
    font-size: 22px;
    font-weight: 600;
    color: #333;
    margin: 30px 0 15px;
}

.blog-modal-content-text p {
    margin-bottom: 20px;
}

.blog-modal-content-text ul {
    margin: 20px 0;
    padding-left: 25px;
}

.blog-modal-content-text li {
    margin-bottom: 10px;
    line-height: 1.6;
}

.blog-modal-content-text strong {
    color: #667eea;
    font-weight: 600;
}

.blog-modal-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    padding-top: 20px;
    border-top: 1px solid #eee;
}

.blog-tag {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 6px 12px;
    border-radius: 15px;
    font-size: 12px;
    font-weight: 500;
}

@media (max-width: 768px) {
    .blog-modal {
        padding: 10px;
    }
    
    .blog-modal-content {
        max-height: 95vh;
    }
    
    .blog-modal-header {
        padding: 15px 20px 0;
    }
    
    .blog-modal-body {
        padding: 0 20px 20px;
    }
    
    .blog-modal-info h1 {
        font-size: 24px;
    }
    
    .blog-modal-content-text {
        font-size: 15px;
    }
    
    .blog-modal-content-text h3 {
        font-size: 20px;
    }
    
    .blog-modal-image {
        height: 200px;
    }
}

.services {
    padding: 100px 50px;
    background: rgba(255, 255, 255, 0.5);
    min-height: 100vh;
    display: flex;
    align-items: center;
}

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

.services-header {
    text-align: center;
    margin-bottom: 50px;
}

.services-header h2 {
    font-size: 42px;
    font-weight: 700;
    color: #333;
    margin-bottom: 15px;
}

.services-header p {
    font-size: 16px;
    color: #666;
    max-width: 600px;
    margin: 0 auto;
}

.services-text h2 {
    font-size: 48px;
    font-weight: 700;
    color: #333;
    margin-bottom: 30px;
    line-height: 1.2;
}

.services-text p {
    font-size: 16px;
    color: #666;
    line-height: 1.6;
    margin-bottom: 20px;
}

.say-hello-btn {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
    padding: 16px 32px;
    border-radius: 30px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.3s;
    margin-top: 20px;
}

.say-hello-btn:hover {
    transform: translateY(-2px);
}

.services-list {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 25px;
}

.service-item {
    background: white;
    padding: 20px;
    border-radius: 12px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
    transition: transform 0.3s;
    height: 100%;
    display: flex;
    flex-direction: column;
    border-left: 3px solid #667eea;
}

.service-item:hover {
    transform: translateY(-5px);
}

.service-item h3 {
    font-size: 16px;
    font-weight: 600;
    color: #333;
    margin-bottom: 10px;
}

.service-item p {
    font-size: 12px;
    color: #666;
    line-height: 1.4;
}

.skills {
    padding: 100px 50px;
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
}

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

.skills-header {
    text-align: center;
    margin-bottom: 60px;
}

.skills-header h2 {
    font-size: 48px;
    font-weight: 700;
    color: #333;
    margin-bottom: 20px;
}

.skills-header p {
    font-size: 16px;
    color: #666;
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.6;
}

.skills-categories {
    display: grid;
    grid-template-columns: 1fr;
    gap: 50px;
}

.skill-category {
    background: rgba(255, 255, 255, 0.8);
    padding: 40px;
    border-radius: 20px;
    backdrop-filter: blur(10px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.skill-category h3 {
    font-size: 28px;
    font-weight: 600;
    color: #333;
    margin-bottom: 30px;
    display: flex;
    align-items: center;
    gap: 15px;
}

.skill-category h3 i {
    color: #667eea;
    font-size: 24px;
}

.skill-subcategory {
    margin-bottom: 40px;
}

.skill-subcategory:last-child {
    margin-bottom: 0;
}

.skill-subcategory h4 {
    font-size: 20px;
    font-weight: 600;
    color: #555;
    margin-bottom: 20px;
    padding-bottom: 10px;
    border-bottom: 2px solid #667eea;
    display: inline-block;
}

.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
}

.skill-item {
    background: white;
    padding: 20px;
    border-radius: 15px;
    display: flex;
    align-items: center;
    gap: 15px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    border-left: 4px solid #667eea;
}

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

.skill-item i {
    font-size: 24px;
    color: #667eea;
    min-width: 24px;
}

.skill-item span {
    font-size: 14px;
    font-weight: 500;
    color: #333;
}

.contact {
    padding: 150px 50px 100px;
    background: #2c3e50;
    position: relative;
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    max-width: 1200px;
    margin: 0 auto;
    background: white;
    padding: 50px;
    border-radius: 30px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.15);
    position: relative;
    z-index: 1;
}

.contact-info h2 {
    font-size: 36px;
    font-weight: 700;
    color: #333;
    margin-bottom: 20px;
    line-height: 1.2;
}

.contact-info p {
    font-size: 14px;
    color: #666;
    line-height: 1.6;
    margin-bottom: 15px;
}

.contact-details {
    margin: 40px 0;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 25px;
}

.contact-icon {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
}

.contact-label {
    font-size: 12px;
    color: #999;
    margin-bottom: 2px;
}

.contact-value {
    font-size: 14px;
    color: #333;
    font-weight: 500;
}

.contact-social {
    display: flex;
    gap: 15px;
}

.contact-social a {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    text-decoration: none;
    transition: transform 0.3s;
}

.contact-social a:hover {
    transform: translateY(-3px);
}

.contact-form {
    padding-left: 20px;
}

.form-row {
    display: flex;
    gap: 15px;
    margin-bottom: 20px;
}

.form-row input,
.form-row textarea {
    flex: 1;
    padding: 15px;
    border: 1px solid #ddd;
    border-radius: 10px;
    font-size: 14px;
    background: #f8f9fa;
    transition: border-color 0.3s;
}

.form-row input:focus,
.form-row textarea:focus {
    outline: none;
    border-color: #667eea;
}

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

.submit-btn {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
    padding: 16px 32px;
    border-radius: 30px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.3s;
}

.submit-btn:hover {
    transform: translateY(-2px);
}

.footer {
    background: #2c3e50;
    padding: 60px 50px 30px;
    color: white;
    margin-top: -30px;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
    padding-bottom: 30px;
    border-bottom: 1px solid #34495e;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 24px;
    font-weight: 600;
}

.footer-logo .logo-circle {
    width: 45px;
    height: 45px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: bold;
    font-size: 18px;
}

.footer-nav {
    display: flex;
    gap: 35px;
    align-items: center;
}

.footer-nav a {
    color: #bdc3c7;
    text-decoration: none;
    font-size: 15px;
    font-weight: 500;
    transition: color 0.3s;
}

.footer-nav a:hover {
    color: white;
}

.footer-copyright {
    font-size: 15px;
    color: #bdc3c7;
    font-weight: 500;
}

.footer-bottom {
    text-align: center;
    padding-top: 25px;
    font-size: 14px;
    color: #95a5a6;
}

.footer-bottom p {
    margin: 0;
    font-weight: 400;
}

@media (max-width: 768px) {
    body {
        padding-top: 70px;
    }
    
    .whatsapp-fixed {
        bottom: 80px;
        right: 20px;
        width: 50px;
        height: 50px;
        font-size: 24px;
    }
    
    .navbar {
        padding: 12px 15px;
    }
    
    .menu-toggle {
        display: flex;
    }
    
    .nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 100%;
        height: 80vh;
        background: rgba(255, 255, 255, 0.95);
        backdrop-filter: blur(15px);
        border-radius: 0 0 20px 20px;
        box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
        flex-direction: column;
        justify-content: flex-start;
        align-items: stretch;
        gap: 0;
        transition: right 0.3s ease;
        z-index: 9999;
        padding-top: 80px;
        padding-bottom: 20px;
        overflow-y: auto;
    }
    
    .nav-menu.active {
        right: 0;
    }
    
    .menu-header {
        position: absolute;
        top: 20px;
        left: 0;
        right: 0;
        display: flex;
        justify-content: space-between;
        align-items: center;
        padding: 0 25px;
    }
    
    .menu-logo {
        display: flex;
        align-items: center;
        gap: 10px;
        font-size: 20px;
        font-weight: 600;
        color: #333;
    }
    
    .menu-logo .logo-circle {
        width: 35px;
        height: 35px;
        background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
        border-radius: 50%;
        display: flex;
        align-items: center;
        justify-content: center;
        color: white;
        font-weight: bold;
        font-size: 14px;
    }
    
    .menu-close {
        font-size: 24px;
        color: #333;
        cursor: pointer;
        width: 40px;
        height: 40px;
        display: flex;
        align-items: center;
        justify-content: center;
        border-radius: 50%;
        transition: all 0.3s ease;
        background: rgba(255, 255, 255, 0.9);
        box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    }
    
    .menu-close:hover {
        background: rgba(102, 126, 234, 0.1);
        color: #667eea;
    }
    
    .nav-menu li {
        width: 100%;
        border-bottom: 1px solid #f0f0f0;
    }
    
    .nav-menu a {
        font-size: 16px;
        font-weight: 500;
        color: #333;
        text-decoration: none;
        padding: 18px 25px;
        display: block;
        width: 100%;
        transition: all 0.3s ease;
        background: transparent;
        border-radius: 0;
    }
    
    .nav-menu a:hover {
        background: rgba(102, 126, 234, 0.1);
        color: #667eea;
    }
    
    .nav-menu a.active {
        background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
        color: white;
    }
    
    .menu-header-right {
        display: flex;
        align-items: center;
        gap: 10px;
    }
    
    .toggle-switch {
        width: 40px;
        height: 20px;
    }
    
    .toggle-slider {
        width: 16px;
        height: 16px;
        top: 2px;
        left: 2px;
    }
    
    .dark-mode .toggle-slider {
        transform: translateX(20px);
    }
    
    .mobile-toggle {
        margin-left: 0;
    }
    
    .dark-mode-toggle {
        display: none !important;
    }
    
    .logo {
        font-size: 20px;
    }
    
    .logo-circle {
        width: 35px;
        height: 35px;
        font-size: 14px;
    }
    
    .hero {
        padding: 20px 15px 40px;
    }
    
    .hero-content {
        grid-template-columns: 1fr;
        gap: 30px;
        text-align: center;
    }
    
    .hero-text h1 {
        font-size: 28px;
        line-height: 1.3;
    }
    
    .hero-text p {
        font-size: 16px;
    }
    
    .profile-photo {
        width: 250px;
        height: 320px;
    }
    
    .stats {
        grid-template-columns: 1fr;
        gap: 15px;
        max-width: 200px;
        margin: 30px auto 0;
    }
    
    .stat-item {
        padding: 18px 12px;
    }
    
    .stat-number {
        font-size: 22px;
    }
    
    .stat-label {
        font-size: 11px;
    }
    
    .about {
        padding: 40px 15px;
    }
    
    .about-content {
        grid-template-columns: 1fr;
        gap: 30px;
        text-align: center;
    }
    
    .about-photo {
        width: 220px;
        height: 280px;
    }
    
    .about-text h2 {
        font-size: 26px;
    }
    
    .about-buttons {
        flex-direction: column;
        align-items: center;
        gap: 15px;
    }
    
    .process {
        padding: 40px 15px;
    }
    
    .process-content {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .process-text h2 {
        font-size: 28px;
        text-align: center;
    }
    
    .process-steps {
        grid-template-columns: 1fr;
        gap: 15px;
    }
    
    .step {
        padding: 20px;
    }
    
    .portfolio {
        padding: 40px 15px;
    }
    
    .portfolio-header h2 {
        font-size: 28px;
    }
    
    .portfolio-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .portfolio-item {
        margin: 0 auto;
        max-width: 350px;
    }
    
    .cta-section {
        padding: 40px 15px;
    }
    
    .cta-content h2 {
        font-size: 26px;
        line-height: 1.3;
    }
    
    .blog {
        padding: 40px 15px;
    }
    
    .blog-header h2 {
        font-size: 28px;
    }
    
    .blog-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .blog-item {
        max-width: 350px;
        margin: 0 auto;
    }
    
    .services {
        padding: 40px 15px;
    }
    
    .services-content {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .services-text {
        text-align: center;
    }
    
    .services-text h2 {
        font-size: 28px;
    }
    
    .services-list {
        gap: 15px;
    }
    
    .service-item {
        padding: 25px 20px;
    }
    
    .contact {
        padding: 60px 15px 40px;
    }
    
    .contact-content {
        grid-template-columns: 1fr;
        gap: 30px;
        padding: 30px 20px;
        margin: 0 5px;
    }
    
    .contact-info h2 {
        font-size: 24px;
        text-align: center;
    }
    
    .contact-form {
        padding-left: 0;
    }
    
    .form-row {
        flex-direction: column;
        gap: 10px;
    }
    
    .form-row input,
    .form-row textarea {
        padding: 12px;
        font-size: 16px;
    }
    
    .footer {
        padding: 30px 15px 15px;
        margin-top: -15px;
    }
    
    .footer-content {
        flex-direction: column;
        gap: 20px;
        text-align: center;
        padding-bottom: 20px;
    }
    
    .footer-nav {
        flex-wrap: wrap;
        justify-content: center;
        gap: 15px;
    }
    
    .footer-nav a {
        font-size: 14px;
    }
    
    .footer-logo {
        font-size: 20px;
    }
    
    .footer-logo .logo-circle {
        width: 35px;
        height: 35px;
        font-size: 14px;
    }
    
    .dark-mode .nav-menu {
        background: rgba(15, 15, 25, 0.95) !important;
        backdrop-filter: blur(15px) !important;
        height: 80vh !important;
    }
    
    .dark-mode-menu-item {
        border-bottom: none !important;
        padding: 0 !important;
        display: block;
    }
    
    @media (min-width: 769px) {
        .dark-mode-menu-item {
            display: none !important;
        }
    }
    
    .dark-mode-menu-toggle {
        display: flex;
        justify-content: space-between;
        align-items: center;
        padding: 18px 25px;
        cursor: pointer;
        transition: all 0.3s ease;
    }
    
    .dark-mode-menu-toggle:hover {
        background: rgba(102, 126, 234, 0.1);
    }
    
    .dark-mode-menu-toggle span {
        font-size: 16px;
        font-weight: 500;
        color: #333;
    }
    
    .dark-mode .dark-mode-menu-toggle span {
        color: #e0e0e0 !important;
    }
    
    .dark-mode .menu-logo {
        color: #e0e0e0 !important;
    }
    
    .dark-mode .menu-close {
        color: #e0e0e0 !important;
        background: rgba(255, 255, 255, 0.1) !important;
    }
    
    .dark-mode .menu-close:hover {
        color: #667eea !important;
        background: rgba(102, 126, 234, 0.2) !important;
    }
    

    
    .pagination-btn {
        width: 35px;
        height: 35px;
        font-size: 14px;
    }
    
    .pagination-info {
        font-size: 12px;
    }
    
    .services {
        padding: 40px 15px;
    }
    
    .services-list {
        grid-template-columns: 1fr;
        gap: 15px;
    }
    
    .skills {
        padding: 40px 15px;
    }
    
    .skills-header h2 {
        font-size: 28px;
    }
    
    .skill-category {
        padding: 25px 20px;
    }
    
    .skills-grid {
        grid-template-columns: 1fr;
        gap: 15px;
    }
    
    .skill-item {
        padding: 15px;
    }
}

@media (max-width: 1024px) {
    .services-list {
        grid-template-columns: 1fr 1fr;
        gap: 20px;
    }
    
    .skills-grid {
        grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    }
}

.certificates {
    padding: 100px 50px;
    background: rgba(255, 255, 255, 0.5);
}

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

.certificates-header {
    text-align: center;
    margin-bottom: 50px;
}

.certificates-header h2 {
    font-size: 48px;
    font-weight: 700;
    color: #333;
    margin-bottom: 20px;
}

.certificates-header p {
    font-size: 16px;
    color: #666;
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.6;
}

.certificate-filters {
    display: flex;
    justify-content: center;
    gap: 15px;
    margin-bottom: 40px;
    flex-wrap: wrap;
}

.filter-btn {
    background: rgba(255, 255, 255, 0.8);
    color: #666;
    border: 2px solid #ddd;
    padding: 10px 20px;
    border-radius: 25px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
}

.filter-btn.active,
.filter-btn:hover {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border-color: transparent;
}

.certificates-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.certificate-item {
    background: white;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s;
    border-left: 4px solid #667eea;
}

.certificate-item:hover {
    transform: translateY(-5px);
}

.certificate-info {
    padding: 25px;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.certificate-info h3 {
    font-size: 18px;
    font-weight: 600;
    color: #333;
    margin-bottom: 10px;
}

.certificate-issuer {
    font-size: 14px;
    color: #667eea;
    font-weight: 500;
    margin-bottom: 5px;
}

.certificate-date {
    font-size: 12px;
    color: #999;
    margin-bottom: 15px;
}

.certificate-description {
    font-size: 13px;
    color: #555;
    line-height: 1.5;
    margin-bottom: 15px;
    padding: 12px;
    background: rgba(102, 126, 234, 0.05);
    border-radius: 8px;
    border-left: 3px solid #667eea;
}

.read-btn {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    text-decoration: none;
    padding: 10px 20px;
    border-radius: 25px;
    font-size: 12px;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    transition: all 0.3s;
    align-self: flex-start;
}

.read-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(102, 126, 234, 0.3);
}

.read-btn i {
    font-size: 14px;
}

.experience {
    padding: 100px 50px;
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
}

.experience-content {
    max-width: 1000px;
    margin: 0 auto;
}

.experience-header {
    text-align: center;
    margin-bottom: 60px;
}

.experience-header h2 {
    font-size: 48px;
    font-weight: 700;
    color: #333;
    margin-bottom: 20px;
}

.experience-header p {
    font-size: 16px;
    color: #666;
    max-width: 800px;
    margin: 0 auto;
    line-height: 1.7;
}

.education-section {
    margin-bottom: 50px;
}

.education-item {
    background: rgba(255, 255, 255, 0.9);
    padding: 25px;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    display: flex;
    align-items: center;
    gap: 20px;
    max-width: 600px;
    margin: 0 auto;
}

.education-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    color: white;
    flex-shrink: 0;
}

.education-content h3 {
    font-size: 20px;
    font-weight: 700;
    color: #333;
    margin-bottom: 5px;
}

.education-content h4 {
    font-size: 16px;
    font-weight: 500;
    color: #667eea;
    margin-bottom: 15px;
}

.education-details {
    font-size: 14px;
    color: #666;
}

.gpa {
    font-weight: 600;
    color: #4CAF50;
    margin-bottom: 10px;
}

.specializations {
    margin-top: 10px;
}

.specializations strong {
    color: #333;
    font-weight: 600;
}

.specializations ul {
    margin: 8px 0 0 0;
    padding-left: 20px;
    list-style-type: disc;
}

.specializations li {
    margin-bottom: 4px;
    line-height: 1.4;
}

.experience-timeline {
    position: relative;
    padding-left: 30px;
}

.experience-timeline::before {
    content: '';
    position: absolute;
    left: 15px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.timeline-item {
    position: relative;
    margin-bottom: 40px;
    background: rgba(255, 255, 255, 0.9);
    padding: 30px;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    margin-left: 40px;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.timeline-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.15);
}

.timeline-item.current {
    border-left: 4px solid #4CAF50;
    background: rgba(76, 175, 80, 0.05);
}

.timeline-item.current .timeline-date {
    background: linear-gradient(135deg, #4CAF50, #45a049);
    color: white;
}

.timeline-item::before {
    content: '';
    position: absolute;
    left: -55px;
    top: 30px;
    width: 12px;
    height: 12px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 50%;
    border: 3px solid white;
}

.timeline-date {
    position: absolute;
    left: -140px;
    top: 25px;
    font-size: 14px;
    font-weight: 600;
    color: #667eea;
    background: white;
    padding: 5px 10px;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.timeline-content h3 {
    font-size: 22px;
    font-weight: 700;
    color: #333;
    margin-bottom: 5px;
}

.timeline-content h4 {
    font-size: 16px;
    font-weight: 600;
    color: #667eea;
    margin-bottom: 15px;
}

.timeline-content p {
    font-size: 15px;
    color: #666;
    line-height: 1.7;
    margin-bottom: 20px;
}

.project-highlights {
    margin: 15px 0 20px;
}

.project-highlights ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.project-highlights li {
    position: relative;
    padding-left: 20px;
    margin-bottom: 8px;
    font-size: 14px;
    color: #555;
    line-height: 1.6;
}

.project-highlights li::before {
    content: '▸';
    position: absolute;
    left: 0;
    color: #667eea;
    font-weight: bold;
}

.timeline-skills {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.skill-tag {
    background: rgba(102, 126, 234, 0.1);
    color: #667eea;
    padding: 4px 10px;
    border-radius: 12px;
    font-size: 12px;
    font-weight: 500;
}

@media (max-width: 768px) {
    .certificates {
        padding: 40px 15px;
    }
    
    .certificates-header h2 {
        font-size: 28px;
    }
    
    .certificates-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .experience {
        padding: 40px 15px;
    }
    
    .experience-header h2 {
        font-size: 28px;
    }
    
    .education-item {
        flex-direction: column;
        text-align: center;
        padding: 20px;
    }
    
    .education-icon {
        width: 50px;
        height: 50px;
        font-size: 20px;
    }
    
    .experience-timeline {
        padding-left: 0;
    }
    
    .experience-timeline::before {
        display: none;
    }
    
    .timeline-item {
        margin-left: 0;
        margin-bottom: 30px;
        padding: 25px 20px;
    }
    
    .timeline-item::before {
        display: none;
    }
    
    .timeline-date {
        position: static;
        display: inline-block;
        margin-bottom: 15px;
        font-size: 12px;
    }
    
    .timeline-content h3 {
        font-size: 18px;
    }
    
    .timeline-content h4 {
        font-size: 14px;
    }
}

@media (max-width: 480px) {
    .hero {
        padding: 20px 10px 40px;
    }
    
    .about {
        padding: 40px 10px;
    }
    
    .process {
        padding: 40px 10px;
    }
    
    .portfolio {
        padding: 40px 10px;
    }
    
    .blog {
        padding: 40px 10px;
    }
    
    .services {
        padding: 40px 10px;
    }
    
    .skills {
        padding: 40px 10px;
    }
    
    .certificates {
        padding: 40px 10px;
    }
    
    .experience {
        padding: 40px 10px;
    }
    
    .contact {
        padding: 60px 10px 40px;
    }
    
    .footer {
        padding: 30px 10px 15px;
    }
}