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

:root {
    --primary-color: #00d4ff;
    --secondary-color: #0099cc;
    --accent-color: #ff6b6b;
    --tech-purple: #6c5ce7;
    --tech-blue: #74b9ff;
    --tech-green: #00b894;
    --tech-orange: #fd79a8;
    --ai-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 30%, #00d4ff 60%, #ff6b6b 100%);
    --hero-gradient: linear-gradient(135deg, #1e3c72 0%, #2a5298 25%, #00d4ff 50%, #667eea 75%, #764ba2 100%);
    --text-dark: #2d3436;
    --text-light: #636e72;
    --bg-light: #f8fafc;
    --bg-tech: #0f0f23;
    --white: #ffffff;
    --success-color: #00b894;
    --card-gradient: linear-gradient(145deg, #ffffff 0%, #f1f3f4 100%);
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--text-dark);
    overflow-x: hidden;
}

/* Navigation */
nav {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    padding: 1rem 0;
    transition: all 0.3s ease;
}

nav.scrolled {
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.1);
}

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

.logo {
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--primary-color);
}

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

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

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

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

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

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    cursor: pointer;
}

.mobile-menu-toggle span {
    width: 25px;
    height: 3px;
    background: var(--primary-color);
    margin: 3px 0;
    transition: 0.3s;
}

/* Hero Section */
.hero {
    min-height: 100vh;
    background: var(--hero-gradient);
    display: flex;
    align-items: center;
    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 1000 1000"><polygon fill="rgba(0,212,255,0.1)" points="0,1000 1000,800 1000,1000"/><circle fill="rgba(255,107,107,0.08)" cx="800" cy="200" r="100"/><circle fill="rgba(108,92,231,0.08)" cx="200" cy="600" r="150"/><polygon fill="rgba(0,184,148,0.06)" points="400,100 600,200 500,400"/></svg>');
    animation: float 20s ease-in-out infinite;
}

.hero::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 30% 20%, rgba(0,212,255,0.15) 0%, transparent 50%), 
                radial-gradient(circle at 80% 80%, rgba(255,107,107,0.15) 0%, transparent 50%),
                radial-gradient(circle at 40% 90%, rgba(108,92,231,0.1) 0%, transparent 50%);
    animation: colorShift 15s ease-in-out infinite;
}

@keyframes colorShift {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.7; }
}

@keyframes float {
    0%, 100% { transform: translateY(0px) rotate(0deg); }
    50% { transform: translateY(-20px) rotate(1deg); }
}

.hero-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    position: relative;
    z-index: 2;
}

.hero-content h1 {
    font-size: 3.5rem;
    font-weight: bold;
    color: var(--white);
    margin-bottom: 0.5rem;
    animation: slideInLeft 1s ease;
}

.hero-content .title {
    font-size: 1.8rem;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 1rem;
    font-weight: 600;
    animation: slideInLeft 1s ease 0.2s both;
}

.hero-content .subtitle {
    font-size: 1.2rem;
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 2rem;
    animation: slideInLeft 1s ease 0.4s both;
    opacity: 0;
}

.hero-content p {
    font-size: 1.1rem;
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 2rem;
    line-height: 1.8;
    animation: slideInLeft 1s ease 0.6s both;
}

.cta-buttons {
    display: flex;
    gap: 1rem;
    animation: slideInLeft 1s ease 0.8s both;
}

.btn {
    padding: 12px 30px;
    border: none;
    border-radius: 50px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
    display: inline-block;
    text-align: center;
}

.btn-primary {
    background: linear-gradient(45deg, var(--accent-color), var(--tech-orange));
    color: var(--white);
    transform: translateY(0);
    box-shadow: 0 4px 15px rgba(255, 107, 107, 0.3);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(255, 107, 107, 0.4);
    background: linear-gradient(45deg, var(--tech-orange), var(--accent-color));
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.1);
    color: var(--white);
    border: 2px solid rgba(0, 212, 255, 0.6);
    backdrop-filter: blur(10px);
}

.btn-secondary:hover {
    background: var(--primary-color);
    color: var(--white);
    border-color: var(--primary-color);
    box-shadow: 0 4px 15px rgba(0, 212, 255, 0.4);
}

.hero-image {
    position: relative;
    animation: slideInRight 1s ease;
}

.profile-container {
    position: relative;
    width: 400px;
    height: 400px;
    margin: 0 auto;
}

.profile-image {
    width: 100%;
    height: 100%;
    border-radius: 50%;
    object-fit: cover;
    border: 5px solid rgba(255, 255, 255, 0.3);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
}

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

.floating-elements {
    position: absolute;
    width: 100%;
    height: 100%;
}

.floating-element {
    position: absolute;
    border-radius: 15px;
    animation: floatAround 15s infinite linear;
}

.floating-element:nth-child(1) {
    width: 60px;
    height: 60px;
    top: 10%;
    left: 80%;
    background: linear-gradient(45deg, var(--primary-color), var(--tech-blue));
    animation-delay: -5s;
    box-shadow: 0 0 20px rgba(0, 212, 255, 0.5);
}

.floating-element:nth-child(2) {
    width: 40px;
    height: 40px;
    top: 70%;
    left: -10%;
    background: linear-gradient(45deg, var(--accent-color), var(--tech-orange));
    animation-delay: -10s;
    box-shadow: 0 0 20px rgba(255, 107, 107, 0.5);
}

.floating-element:nth-child(3) {
    width: 50px;
    height: 50px;
    top: 30%;
    left: -5%;
    background: linear-gradient(45deg, var(--tech-purple), var(--tech-green));
    animation-delay: -15s;
    box-shadow: 0 0 20px rgba(108, 92, 231, 0.5);
}

@keyframes floatAround {
    from {
        transform: rotate(0deg) translateX(100px) rotate(0deg);
    }
    to {
        transform: rotate(360deg) translateX(100px) rotate(-360deg);
    }
}

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

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* Custom animations for JavaScript */
@keyframes bounceIn {
    0% { transform: scale(0.3) translateY(50px); opacity: 0; }
    50% { transform: scale(1.05) translateY(0); }
    70% { transform: scale(0.9); }
    100% { transform: scale(1); opacity: 1; }
}

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

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

.animate-bounce-in {
    animation: bounceIn 0.8s ease forwards;
}

.animate-slide-in {
    animation: slideIn 0.6s ease forwards;
}

.animate-fade-in {
    animation: fadeIn 0.6s ease forwards;
}

/* Sections */
section {
    padding: 5rem 0;
}

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

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

.section-header h2 {
    font-size: 2.5rem;
    font-weight: bold;
    color: var(--text-dark);
    margin-bottom: 1rem;
    position: relative;
}

.section-header h2::after {
    content: '';
    position: absolute;
    width: 60px;
    height: 4px;
    background: var(--primary-color);
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
}

.section-header p {
    color: var(--text-light);
    font-size: 1.1rem;
    max-width: 600px;
    margin: 0 auto;
}

/* About Section */
.about {
    background: var(--bg-light);
}

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

.about-text h3 {
    font-size: 1.8rem;
    color: var(--text-dark);
    margin-bottom: 1rem;
}

.about-text p {
    color: var(--text-light);
    margin-bottom: 1.5rem;
    line-height: 1.8;
}

.experience-item {
    background: var(--white);
    padding: 1.5rem;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    margin-bottom: 1.5rem;
    border-left: 4px solid var(--primary-color);
}

.experience-item h4 {
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.experience-item .company {
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 0.3rem;
}

.experience-item .date {
    color: var(--text-light);
    font-size: 0.9rem;
    margin-bottom: 0.5rem;
}

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

.skill-item {
    background: var(--card-gradient);
    padding: 1.5rem;
    border-radius: 15px;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1), 0 0 20px rgba(0, 212, 255, 0.1);
    transition: all 0.3s ease;
    text-align: center;
    border: 1px solid rgba(0, 212, 255, 0.1);
}

.skill-item:hover {
    transform: translateY(-10px) scale(1.02);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.15), 0 0 30px rgba(0, 212, 255, 0.2);
    border-color: var(--primary-color);
}

.skill-item h4 {
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.skill-icon {
    font-size: 2rem;
    margin-bottom: 1rem;
}

/* Certifications Section */
.certifications {
    background: var(--white);
}

.cert-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.cert-card {
    background: var(--card-gradient);
    padding: 2rem;
    border-radius: 20px;
    text-align: center;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1), 0 0 25px rgba(108, 92, 231, 0.1);
    transition: all 0.3s ease;
    border: 2px solid rgba(108, 92, 231, 0.1);
}

.cert-card:hover {
    transform: translateY(-15px) scale(1.03);
    border-color: var(--tech-purple);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15), 0 0 35px rgba(108, 92, 231, 0.3);
}

.cert-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
    background: linear-gradient(45deg, var(--tech-purple), var(--primary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.cert-card h3 {
    color: var(--text-dark);
    margin-bottom: 0.5rem;
}

.cert-card p {
    color: var(--text-light);
    font-size: 0.9rem;
}

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

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

.project-card {
    background: var(--card-gradient);
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.1), 0 0 25px rgba(0, 184, 148, 0.1);
    transition: all 0.3s ease;
    border: 1px solid rgba(0, 184, 148, 0.1);
}

.project-card:hover {
    transform: translateY(-15px) scale(1.02);
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.15), 0 0 40px rgba(0, 184, 148, 0.2);
    border-color: var(--tech-green);
}

.project-image {
    width: 100%;
    height: 200px;
    background: linear-gradient(135deg, var(--tech-green) 0%, var(--primary-color) 50%, var(--tech-purple) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 3rem;
    position: relative;
    overflow: hidden;
}

.project-image::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.1);
    transition: opacity 0.3s ease;
}

.project-card:hover .project-image::before {
    opacity: 0;
}

.project-content {
    padding: 1.5rem;
}

.project-content h3 {
    color: var(--text-dark);
    margin-bottom: 0.5rem;
    font-size: 1.3rem;
}

.project-content p {
    color: var(--text-light);
    margin-bottom: 1rem;
    line-height: 1.6;
}

.project-tech {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 1rem;
}

.tech-tag {
    background: var(--primary-color);
    color: var(--white);
    padding: 0.3rem 0.8rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 500;
}

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

.project-links a {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
}

.project-links a:hover {
    color: var(--tech-purple);
}

/* Contact Section */
.contact {
    background: var(--bg-tech);
    color: var(--white);
}

.contact .section-header h2 {
    color: var(--white);
}

.contact .section-header p {
    color: rgba(255, 255, 255, 0.8);
}

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

.contact-info h3 {
    color: var(--primary-color);
    margin-bottom: 1rem;
    font-size: 1.5rem;
}

.contact-info p {
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 2rem;
    line-height: 1.8;
}

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

.contact-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 10px;
    border: 1px solid rgba(0, 212, 255, 0.1);
    transition: all 0.3s ease;
}

.contact-item:hover {
    background: rgba(0, 212, 255, 0.1);
    border-color: var(--primary-color);
}

.contact-item i {
    color: var(--primary-color);
    font-size: 1.2rem;
}

.contact-form {
    background: rgba(255, 255, 255, 0.05);
    padding: 2rem;
    border-radius: 20px;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

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

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

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 0.8rem;
    border: 1px solid rgba(255, 255, 255, 0.2);
    background: rgba(255, 255, 255, 0.05);
    color: var(--white);
    border-radius: 8px;
    font-size: 1rem;
    transition: all 0.3s ease;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    background: rgba(255, 255, 255, 0.1);
    box-shadow: 0 0 10px rgba(0, 212, 255, 0.3);
}

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

/* Notification styles */
.notification {
    position: fixed;
    top: 100px;
    right: 20px;
    padding: 1rem 2rem;
    border-radius: 8px;
    color: white;
    font-weight: 500;
    z-index: 1001;
    transform: translateX(100%);
    transition: transform 0.3s ease;
}

.notification.show {
    transform: translateX(0);
}

.notification.success {
    background: var(--success-color);
}

.notification.error {
    background: var(--accent-color);
}

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

.social-links {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 1rem;
}

.social-links a {
    color: var(--primary-color);
    font-size: 1.5rem;
    transition: color 0.3s ease;
}

.social-links a:hover {
    color: var(--white);
}

/* Mobile Responsiveness */
@media (max-width: 768px) {
    .mobile-menu-toggle {
        display: flex;
    }
    
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background-color: white;
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: 0 10px 27px rgba(0, 0, 0, 0.05);
        padding: 2rem 0;
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .hero-container {
        grid-template-columns: 1fr;
        gap: 2rem;
        text-align: center;
    }
    
    .hero-content h1 {
        font-size: 2.5rem;
    }
    
    .profile-container {
        width: 300px;
        height: 300px;
    }
    
    .cta-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .about-content,
    .contact-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .skills-grid {
        grid-template-columns: 1fr;
    }
    
    .projects-grid {
        grid-template-columns: 1fr;
    }
    
    .cert-grid {
        grid-template-columns: 1fr;
    }
    
    .section-header h2 {
        font-size: 2rem;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 1rem;
    }
    
    .hero-content h1 {
        font-size: 2rem;
    }
    
    .hero-content .title {
        font-size: 1.3rem;
    }
    
    .profile-container {
        width: 250px;
        height: 250px;
    }
}