:root {
    --primary: #6366f1;
    --primary-dark: #4f46e5;
    --secondary: #8b5cf6;
    --accent: #ec4899;
    --bg: #0f0f1e;
    --bg-light: #1a1a2e;
    --text: #ffffff;
    --text-muted: #94a3b8;
    --card-bg: rgba(26, 26, 46, 0.8);
    --gradient: linear-gradient(135deg, var(--primary), var(--secondary));
}

[data-theme="light"] {
    --bg: #ffffff;
    --bg-light: #f8fafc;
    --text: #0f0f1e;
    --text-muted: #64748b;
    --card-bg: rgba(255, 255, 255, 0.9);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Poppins', sans-serif;
    background: var(--bg);
    color: var(--text);
    overflow-x: hidden;
    line-height: 1.6;
}

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

/* Custom Cursor */
.cursor, .cursor-follower {
    width: 20px;
    height: 20px;
    border-radius: 50%;
    position: fixed;
    pointer-events: none;
    z-index: 9999;
    transition: transform 0.2s ease;
}

.cursor {
    background: var(--primary);
    mix-blend-mode: difference;
}

.cursor-follower {
    width: 40px;
    height: 40px;
    border: 2px solid var(--primary);
    background: transparent;
    transition: transform 0.3s ease;
}

/* Loading Screen */
.loading-screen {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    background: var(--bg);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10000;
    transition: opacity 0.5s ease;
}

.loader-text {
    font-size: 4rem;
    font-weight: 800;
    font-family: 'Space Grotesk', sans-serif;
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.loader-dot {
    animation: blink 1s infinite;
}

.loader-bar {
    width: 200px;
    height: 3px;
    background: rgba(99, 102, 241, 0.2);
    margin-top: 1rem;
    border-radius: 10px;
    overflow: hidden;
}

.loader-bar::after {
    content: '';
    display: block;
    width: 50%;
    height: 100%;
    background: var(--gradient);
    animation: loading 1.5s ease-in-out infinite;
}

/* Scroll Progress */
.scroll-progress {
    position: fixed;
    top: 0;
    left: 0;
    width: 0;
    height: 3px;
    background: var(--gradient);
    z-index: 9998;
    transition: width 0.1s ease;
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    padding: 1.5rem 3rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    z-index: 1000;
    background: rgba(15, 15, 30, 0.8);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.nav-logo .logo-text {
    font-size: 2rem;
    font-weight: 800;
    font-family: 'Space Grotesk', sans-serif;
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    cursor: pointer;
    transition: transform 0.2s ease;
    user-select: none;
}

.nav-logo .logo-text:hover {
    transform: scale(1.05);
}

.nav-logo .logo-text:active {
    transform: scale(0.95);
}

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

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

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

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

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

.theme-toggle {
    position: relative;
}

#theme-switch {
    display: none;
}

.theme-label {
    width: 60px;
    height: 30px;
    background: var(--card-bg);
    border: 2px solid rgba(255, 255, 255, 0.1);
    border-radius: 30px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 5px;
    cursor: pointer;
    position: relative;
}

.theme-label::after {
    content: '';
    position: absolute;
    width: 22px;
    height: 22px;
    background: var(--gradient);
    border-radius: 50%;
    transition: transform 0.3s ease;
    left: 4px;
}

#theme-switch:checked + .theme-label::after {
    transform: translateX(30px);
}

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

.hamburger span {
    width: 25px;
    height: 3px;
    background: var(--text);
    border-radius: 3px;
    transition: all 0.3s ease;
}

/* Particle Background */
#particles {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    padding: 8rem 2rem 4rem;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
}

.hero-title {
    font-size: 1.2rem;
    margin-bottom: 1rem;
}

.title-line {
    display: block;
    color: var(--text-muted);
    font-weight: 400;
}

.title-name {
    display: block;
    font-size: 4rem;
    font-weight: 800;
    font-family: 'Space Grotesk', sans-serif;
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1.2;
}

.hero-subtitle {
    font-size: 1.8rem;
    color: var(--primary);
    margin-bottom: 1.5rem;
    min-height: 60px;
}

.cursor-blink {
    animation: blink 1s infinite;
}

.hero-description {
    font-size: 1.1rem;
    color: var(--text-muted);
    margin-bottom: 2rem;
    max-width: 500px;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    margin-bottom: 3rem;
}

.btn {
    padding: 1rem 2rem;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
    position: relative;
    overflow: hidden;
}

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

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

.btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(99, 102, 241, 0.3);
}

.hero-stats {
    display: flex;
    gap: 3rem;
}

.stat-item {
    display: flex;
    flex-direction: column;
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 800;
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    color: var(--text-muted);
    font-size: 0.9rem;
}

.hero-visual {
    position: relative;
    height: 500px;
}

.floating-card {
    position: absolute;
    background: var(--card-bg);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 20px;
    padding: 1.5rem;
    display: flex;
    align-items: center;
    gap: 1rem;
    animation: float 3s ease-in-out infinite;
}

.card-1 {
    top: 10%;
    left: 10%;
    animation-delay: 0s;
}

.card-2 {
    top: 40%;
    right: 10%;
    animation-delay: 1s;
}

.card-3 {
    bottom: 20%;
    left: 20%;
    animation-delay: 2s;
}

.card-icon {
    font-size: 2rem;
}

.card-text {
    font-weight: 600;
}

.hero-shape {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 400px;
    height: 400px;
    background: var(--gradient);
    border-radius: 50%;
    filter: blur(100px);
    opacity: 0.3;
    animation: pulse 4s ease-in-out infinite;
}

.scroll-indicator {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-muted);
    font-size: 0.9rem;
}

.scroll-arrow {
    width: 2px;
    height: 30px;
    background: var(--text-muted);
    position: relative;
    animation: scroll 2s ease-in-out infinite;
}

/* Section Styles */
section {
    padding: 6rem 0;
}

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

.section-tag {
    display: inline-block;
    padding: 0.5rem 1.5rem;
    background: rgba(99, 102, 241, 0.1);
    color: var(--primary);
    border-radius: 50px;
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.section-title {
    font-size: 3rem;
    font-weight: 800;
    font-family: 'Space Grotesk', sans-serif;
}

/* About Section */
.about-content {
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: 4rem;
    align-items: center;
}

.about-intro h3 {
    font-size: 2rem;
    margin-bottom: 1rem;
}

.about-intro p {
    color: var(--text-muted);
    font-size: 1.1rem;
    margin-bottom: 2rem;
}

.about-details {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.detail-item {
    display: flex;
    gap: 1rem;
    align-items: flex-start;
}

.detail-icon {
    font-size: 2rem;
}

.detail-item h4 {
    margin-bottom: 0.3rem;
    color: var(--primary);
}

.detail-item p {
    color: var(--text-muted);
    font-size: 0.95rem;
}

.about-highlights {
    display: flex;
    flex-direction: column;
    gap: 0.8rem;
}

.highlight {
    color: var(--text-muted);
    padding-left: 1.5rem;
    position: relative;
}

.highlight::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 8px;
    height: 8px;
    background: var(--primary);
    border-radius: 50%;
}

.about-visual {
    position: relative;
    height: 400px;
}

.experience-card {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: var(--card-bg);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 20px;
    padding: 2rem;
    text-align: center;
    z-index: 2;
}

.exp-number {
    font-size: 4rem;
    font-weight: 800;
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.exp-text {
    color: var(--text-muted);
    font-size: 1.1rem;
}

.tech-orbit {
    position: relative;
    width: 100%;
    height: 100%;
}

.orbit-item {
    position: absolute;
    padding: 0.8rem 1.5rem;
    background: var(--card-bg);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 50px;
    font-weight: 600;
    font-size: 0.9rem;
    animation: orbit 20s linear infinite;
}

.orbit-1 {
    top: 10%;
    left: 10%;
    animation-delay: 0s;
}

.orbit-2 {
    top: 20%;
    right: 10%;
    animation-delay: 5s;
}

.orbit-3 {
    bottom: 20%;
    left: 5%;
    animation-delay: 10s;
}

.orbit-4 {
    bottom: 10%;
    right: 15%;
    animation-delay: 15s;
}

/* Skills Section */
.skills {
    background: var(--bg-light);
}

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

.skill-card {
    background: var(--card-bg);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 20px;
    padding: 2rem;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.skill-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(99, 102, 241, 0.2);
}

.skill-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.skill-card h3 {
    font-size: 1.5rem;
    margin-bottom: 0.8rem;
}

.skill-card p {
    color: var(--text-muted);
    margin-bottom: 1.5rem;
}

.skill-tags {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
    margin-bottom: 1.5rem;
}

.skill-tags span {
    padding: 0.4rem 1rem;
    background: rgba(99, 102, 241, 0.1);
    color: var(--primary);
    border-radius: 50px;
    font-size: 0.85rem;
}

.skill-level {
    width: 100%;
    height: 6px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 10px;
    overflow: hidden;
}

.level-bar {
    height: 100%;
    background: var(--gradient);
    border-radius: 10px;
    transition: width 1s ease;
}

/* Certificates Section */
.certificates {
    background: var(--bg-light);
}

.certificates-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
}

.certificate-card {
    background: var(--card-bg);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 20px;
    padding: 2rem;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    position: relative;
    overflow: hidden;
}

.certificate-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: var(--gradient);
}

.certificate-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(99, 102, 241, 0.3);
}

.certificate-badge {
    width: 80px;
    height: 80px;
    margin: 0 auto 1.5rem;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
}

.badge-icon {
    font-size: 3rem;
    z-index: 2;
    position: relative;
    animation: float 3s ease-in-out infinite;
}

.badge-glow {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 100px;
    height: 100px;
    background: var(--gradient);
    border-radius: 50%;
    filter: blur(30px);
    opacity: 0.4;
    animation: glowPulse 2s ease-in-out infinite;
}

.certificate-card:hover .badge-icon {
    animation: badgeFloat 1s ease-in-out infinite;
}

.certificate-card:hover .badge-glow {
    opacity: 0.7;
    filter: blur(40px);
}

.certificate-content {
    text-align: center;
}

.certificate-content h3 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
    color: var(--text);
}

.certificate-issuer {
    color: var(--primary);
    font-weight: 600;
    font-size: 1.1rem;
    margin-bottom: 1rem;
}

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

.certificate-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.8rem 1.5rem;
    background: rgba(99, 102, 241, 0.1);
    color: var(--primary);
    text-decoration: none;
    border-radius: 50px;
    font-weight: 600;
    border: 2px solid rgba(99, 102, 241, 0.2);
    transition: all 0.3s ease;
}

.certificate-link:hover {
    background: var(--gradient);
    color: white;
    border-color: transparent;
    transform: translateX(5px);
}

.certificate-link svg {
    transition: transform 0.3s ease;
}

.certificate-link:hover svg {
    transform: translateX(5px);
}

/* Projects Section */
.project-filters {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 3rem;
    flex-wrap: wrap;
}

.filter-btn {
    padding: 0.8rem 2rem;
    background: transparent;
    color: var(--text);
    border: 2px solid rgba(255, 255, 255, 0.1);
    border-radius: 50px;
    cursor: pointer;
    font-weight: 600;
    transition: all 0.3s ease;
}

.filter-btn:hover, .filter-btn.active {
    background: var(--gradient);
    border-color: transparent;
    color: white;
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 2rem;
}

.project-card {
    background: var(--card-bg);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 20px;
    overflow: hidden;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.project-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(99, 102, 241, 0.2);
}

.project-image {
    position: relative;
    height: 250px;
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.2), rgba(139, 92, 246, 0.2));
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.project-icon {
    font-size: 4rem;
    z-index: 1;
    transition: all 0.3s ease;
}

.project-card:hover .project-icon {
    transform: scale(0.5) translateY(-60px);
    opacity: 0.3;
}

.project-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.9);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.3s ease;
    z-index: 2;
}

.project-card:hover .project-overlay {
    opacity: 1;
}

.project-link {
    padding: 1rem 2rem;
    background: var(--gradient);
    color: white;
    text-decoration: none;
    border-radius: 50px;
    font-weight: 600;
    transform: translateY(20px);
    transition: transform 0.3s ease;
    z-index: 3;
    position: relative;
}

.project-card:hover .project-link {
    transform: translateY(0);
}

.project-preview {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.project-card:hover .project-preview {
    opacity: 0.2;
}

.project-screenshot {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0.2;
    transition: all 0.3s ease;
    filter: blur(2px) brightness(0.7);
}

.project-card:hover .project-screenshot {
    opacity: 0.4;
    filter: blur(0px) brightness(0.8);
    transform: scale(1.05);
}

.project-info {
    padding: 1.5rem;
}

.project-category {
    display: inline-block;
    padding: 0.3rem 1rem;
    background: rgba(99, 102, 241, 0.1);
    color: var(--primary);
    border-radius: 50px;
    font-size: 0.8rem;
    margin-bottom: 0.8rem;
}

.project-info h3 {
    font-size: 1.3rem;
    margin-bottom: 0.5rem;
}

.project-info p {
    color: var(--text-muted);
    font-size: 0.95rem;
    margin-bottom: 1rem;
}

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

.project-tech span {
    padding: 0.3rem 0.8rem;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 50px;
    font-size: 0.8rem;
    color: var(--text-muted);
}

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

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 4rem;
}

.contact-info h3 {
    font-size: 2rem;
    margin-bottom: 1rem;
}

.contact-info p {
    color: var(--text-muted);
    margin-bottom: 2rem;
}

.contact-methods {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.contact-method {
    display: flex;
    gap: 1rem;
    align-items: flex-start;
}

.method-icon {
    font-size: 2rem;
}

.contact-method h4 {
    margin-bottom: 0.3rem;
    color: var(--primary);
}

.contact-method a, .contact-method p {
    color: var(--text-muted);
    text-decoration: none;
}

.contact-method a:hover {
    color: var(--primary);
}

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

.social-link {
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--card-bg);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    color: var(--text);
    transition: all 0.3s ease;
}

.social-link:hover {
    background: var(--gradient);
    transform: translateY(-5px);
}

.social-link svg {
    width: 24px;
    height: 24px;
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.form-group input, .form-group textarea {
    width: 100%;
    padding: 1rem 1.5rem;
    background: var(--card-bg);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 10px;
    color: var(--text);
    font-family: 'Poppins', sans-serif;
    font-size: 1rem;
    transition: border-color 0.3s ease;
}

.form-group input:focus, .form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
}

.form-group textarea {
    resize: vertical;
}

/* Footer */
.footer {
    background: var(--bg);
    padding: 3rem 0 1.5rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
}

.footer-logo h3 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

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

.footer-links {
    display: flex;
    gap: 2rem;
}

.footer-links a {
    color: var(--text-muted);
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-links a:hover {
    color: var(--primary);
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--text-muted);
}

/* Responsive */
@media (max-width: 968px) {
    .hamburger {
        display: flex;
    }
    
    .nav-menu {
        position: fixed;
        top: 80px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 80px);
        background: var(--bg);
        flex-direction: column;
        align-items: center;
        padding: 2rem;
        transition: left 0.3s ease;
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .title-name {
        font-size: 3rem;
    }
    
    .hero-visual {
        display: none;
    }
    
    .about-content {
        grid-template-columns: 1fr;
    }
    
    .contact-content {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        flex-direction: column;
        gap: 2rem;
        text-align: center;
    }
}

@media (max-width: 640px) {
    .title-name {
        font-size: 2.5rem;
    }
    
    .hero-buttons {
        flex-direction: column;
    }
    
    .hero-stats {
        flex-direction: column;
        gap: 1.5rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .projects-grid {
        grid-template-columns: 1fr;
    }
}