:root {
    --primary-color: #0a0e27;
    --secondary-color: #1a1f3a;
    --accent-color: #00d4ff;
    --text-light: #e0e0e0;
    --text-muted: #a0a0a0;
    --glass-bg: rgba(255, 255, 255, 0.05);
    --glass-border: rgba(255, 255, 255, 0.1);
    --transition: all 0.3s ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, #0a0e27 0%, #1a1f3a 50%, #0f1229 100%);
    background-attachment: fixed;
    color: var(--text-light);
    overflow-x: hidden;
    position: relative;
}

/* Scrollbar Styling */
::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: var(--primary-color);
}

::-webkit-scrollbar-thumb {
    background: var(--accent-color);
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: #00a0cc;
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(10, 14, 39, 0.8);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--glass-border);
    z-index: 1000;
    padding: 0;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 2rem;
}

.nav-brand {
    font-size: 1.8rem;
    font-weight: 700;
    background: linear-gradient(135deg, #00d4ff, #0099ff);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: 2px;
}

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

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

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

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

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

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 5px;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background: var(--accent-color);
    border-radius: 2px;
    transition: var(--transition);
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
    margin-top: 60px;
    text-align: center;
}

.hero-background {
    position: absolute;
    width: 100%;
    height: 100%;
    z-index: -1;
}

.glow-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.3;
}

.orb-1 {
    width: 400px;
    height: 400px;
    background: rgba(0, 212, 255, 0.4);
    top: -100px;
    left: -100px;
    animation: float 8s ease-in-out infinite;
}

.orb-2 {
    width: 300px;
    height: 300px;
    background: rgba(0, 153, 255, 0.3);
    bottom: -50px;
    right: -50px;
    animation: float 10s ease-in-out infinite 2s;
}

@keyframes float {
    0%, 100% { transform: translate(0, 0); }
    50% { transform: translate(30px, 30px); }
}

.hero-content {
    z-index: 1;
    animation: fadeInUp 1s ease-out;
}

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

.hero-title {
    font-size: 4rem;
    font-weight: 700;
    margin-bottom: 1rem;
    background: linear-gradient(135deg, #00d4ff, #0099ff, #00d4ff);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: -1px;
}

.hero-subtitle {
    font-size: 1.5rem;
    color: var(--text-muted);
    margin-bottom: 2rem;
    font-weight: 300;
}

.cta-button {
    padding: 1rem 2.5rem;
    background: linear-gradient(135deg, var(--accent-color), #0099ff);
    border: none;
    border-radius: 50px;
    color: var(--primary-color);
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: var(--transition);
    box-shadow: 0 0 30px rgba(0, 212, 255, 0.3);
}

.cta-button:hover {
    transform: translateY(-3px);
    box-shadow: 0 0 50px rgba(0, 212, 255, 0.5);
}

/* Sections */
.section {
    padding: 5rem 2rem;
}

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

.section-title {
    font-size: 2.5rem;
    margin-bottom: 3rem;
    text-align: center;
    position: relative;
    display: inline-block;
    width: 100%;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 100px;
    height: 3px;
    background: linear-gradient(90deg, transparent, var(--accent-color), transparent);
}

/* About Section */
.about {
    background: rgba(26, 31, 58, 0.5);
}

.about-content p {
    font-size: 1.1rem;
    line-height: 1.8;
    color: var(--text-muted);
    margin-bottom: 1.5rem;
}

/* Experience Section */
.experience {
    background: linear-gradient(135deg, rgba(10, 14, 39, 0.5), rgba(26, 31, 58, 0.5));
}

.experience-timeline {
    position: relative;
    padding: 2rem 0;
}

.experience-timeline::before {
    content: '';
    position: absolute;
    left: 30px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(180deg, var(--accent-color), transparent);
}

.timeline-item {
    display: flex;
    gap: 3rem;
    margin-bottom: 2rem;
    position: relative;
}

.timeline-marker {
    width: 60px;
    height: 60px;
    background: var(--accent-color);
    border-radius: 50%;
    position: relative;
    flex-shrink: 0;
    box-shadow: 0 0 30px rgba(0, 212, 255, 0.5);
}

.timeline-content {
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    padding: 2rem;
    border-radius: 15px;
    flex: 1;
    transition: var(--transition);
}

.timeline-content:hover {
    background: rgba(0, 212, 255, 0.1);
    border-color: var(--accent-color);
    transform: translateX(10px);
}

.timeline-content h3 {
    font-size: 1.4rem;
    color: var(--text-light);
    margin-bottom: 0.5rem;
}

.timeline-content .company {
    color: var(--accent-color);
    font-weight: 600;
    margin-bottom: 0.3rem;
}

.timeline-content .duration {
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-bottom: 1rem;
}

.responsibilities {
    list-style: none;
    color: var(--text-muted);
    font-size: 0.95rem;
    line-height: 1.8;
}

.responsibilities li {
    padding-left: 1.5rem;
    margin-bottom: 0.8rem;
    position: relative;
}

.responsibilities li::before {
    content: '→';
    position: absolute;
    left: 0;
    color: var(--accent-color);
}

/* Education Section */
.education {
    background: rgba(26, 31, 58, 0.5);
}

.education-single {
    display: flex;
    justify-content: center;
    max-width: 500px;
    margin: 0 auto;
}

.education-single .education-card {
    width: 100%;
}

/* Certifications Section */
.certifications {
    background: linear-gradient(135deg, rgba(10, 14, 39, 0.5), rgba(26, 31, 58, 0.5));
}

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

.education-card {
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    padding: 2rem;
    border-radius: 15px;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.education-card.degree {
    background: linear-gradient(135deg, rgba(0, 212, 255, 0.1), rgba(0, 153, 255, 0.1));
    border-color: var(--accent-color);
}

.education-card:hover {
    transform: translateY(-10px);
    background: rgba(0, 212, 255, 0.15);
    box-shadow: 0 20px 40px rgba(0, 212, 255, 0.1);
}

.education-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

.education-header i {
    font-size: 2rem;
    color: var(--accent-color);
}

.badge {
    background: linear-gradient(135deg, var(--accent-color), #0099ff);
    color: var(--primary-color);
    padding: 0.3rem 0.8rem;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
}

.education-card h3 {
    font-size: 1.1rem;
    color: var(--text-light);
    margin-bottom: 0.8rem;
    line-height: 1.4;
}

.education-card .institution {
    color: var(--accent-color);
    font-weight: 600;
    font-size: 0.95rem;
    margin-bottom: 0.3rem;
}

.education-card .location {
    color: var(--text-muted);
    font-size: 0.85rem;
    margin-bottom: 0.5rem;
}

.education-card .status {
    color: var(--text-muted);
    font-size: 0.85rem;
    font-style: italic;
    margin-top: 0.8rem;
    padding-top: 0.8rem;
    border-top: 1px solid var(--glass-border);
}

/* Expertise Section */
.expertise {
    background: linear-gradient(135deg, rgba(10, 14, 39, 0.5), rgba(26, 31, 58, 0.5));
}

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

.expertise-card {
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    padding: 2rem;
    border-radius: 15px;
    text-align: center;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.expertise-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, transparent, var(--accent-color), transparent);
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.expertise-card:hover {
    background: rgba(0, 212, 255, 0.1);
    border-color: var(--accent-color);
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 212, 255, 0.1);
}

.expertise-card:hover::before {
    transform: scaleX(1);
}

.expertise-icon {
    font-size: 3rem;
    color: var(--accent-color);
    margin-bottom: 1rem;
}

.expertise-card h3 {
    font-size: 1.3rem;
    margin-bottom: 1rem;
    color: var(--text-light);
}

.expertise-card p {
    color: var(--text-muted);
    font-size: 0.95rem;
    line-height: 1.6;
}

/* Projects Section */
.projects {
    background: rgba(26, 31, 58, 0.5);
}

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

.project-card {
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    padding: 2rem;
    border-radius: 15px;
    transition: var(--transition);
    position: relative;
}

.project-card::after {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 0;
    height: 100%;
    background: rgba(0, 212, 255, 0.05);
    transition: width 0.3s ease;
    z-index: -1;
}

.project-card:hover {
    border-color: var(--accent-color);
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 212, 255, 0.1);
}

.project-card:hover::after {
    width: 100%;
}

.project-header {
    display: flex;
    justify-content: space-between;
    align-items: start;
    margin-bottom: 1.5rem;
    gap: 1rem;
}

.project-header h3 {
    font-size: 1.3rem;
    color: var(--text-light);
    flex: 1;
}

.project-status {
    background: linear-gradient(135deg, var(--accent-color), #0099ff);
    color: var(--primary-color);
    padding: 0.4rem 1rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
    white-space: nowrap;
}

.project-card p {
    color: var(--text-muted);
    line-height: 1.6;
    margin-bottom: 1.5rem;
    font-size: 0.95rem;
}

.project-tags {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.tag {
    background: rgba(0, 212, 255, 0.1);
    border: 1px solid var(--accent-color);
    color: var(--accent-color);
    padding: 0.3rem 0.8rem;
    border-radius: 15px;
    font-size: 0.8rem;
    font-weight: 500;
}

/* Contact Section */
.contact {
    background: linear-gradient(135deg, rgba(10, 14, 39, 0.5), rgba(26, 31, 58, 0.5));
    text-align: center;
}

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

.contact-content > p {
    font-size: 1.3rem;
    color: var(--text-muted);
    margin-bottom: 3rem;
}

.contact-methods {
    display: flex;
    gap: 2rem;
    justify-content: center;
    flex-wrap: wrap;
}

.contact-link {
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    border: 2px solid var(--glass-border);
    color: var(--text-light);
    padding: 1rem 2rem;
    border-radius: 50px;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 0.8rem;
    font-weight: 600;
    transition: var(--transition);
}

.contact-link:hover {
    border-color: var(--accent-color);
    background: rgba(0, 212, 255, 0.1);
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 212, 255, 0.2);
}

/* Footer */
.footer {
    background: rgba(10, 14, 39, 0.8);
    border-top: 1px solid var(--glass-border);
    padding: 2rem;
    text-align: center;
    color: var(--text-muted);
}

/* Responsive */
@media (max-width: 768px) {
    .nav-menu {
        display: none;
    }

    .hamburger {
        display: flex;
    }

    .hero-title {
        font-size: 2.5rem;
    }

    .hero-subtitle {
        font-size: 1.1rem;
    }

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

    .about-stats {
        grid-template-columns: 1fr;
    }

    .timeline-item {
        gap: 1.5rem;
    }

    .experience-timeline::before {
        left: 20px;
    }

    .timeline-marker {
        width: 45px;
        height: 45px;
        flex-shrink: 0;
    }

    .timeline-content {
        padding: 1.5rem;
    }

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

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

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

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

    .contact-link {
        width: 100%;
        justify-content: center;
    }

    .section {
        padding: 3rem 1.5rem;
    }

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

@media (max-width: 480px) {
    .hero-title {
        font-size: 2rem;
    }

    .hero-subtitle {
        font-size: 1rem;
    }

    .cta-button {
        padding: 0.8rem 2rem;
        font-size: 0.9rem;
    }

    .nav-brand {
        font-size: 1.3rem;
    }

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

    .timeline-marker {
        width: 40px;
        height: 40px;
        min-width: 40px;
    }

    .timeline-item {
        gap: 1rem;
    }

    .experience-timeline::before {
        left: 15px;
    }

    .timeline-content h3 {
        font-size: 1.1rem;
    }

    .responsibilities li {
        font-size: 0.9rem;
    }
}