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

:root {
    --primary-bg: #0a0a0a;
    --secondary-bg: #1a1a1a;
    --accent-bg: #2a2a2a;
    --primary-text: #ffffff;
    --secondary-text: #b3b3b3;
    --accent-text: #666666;
    --neon-blue: #00d4ff;
    --neon-purple: #8b5cf6;
    --neon-cyan: #06ffa5;
    --gradient-primary: linear-gradient(135deg, var(--neon-blue), var(--neon-purple));
    --gradient-secondary: linear-gradient(135deg, var(--neon-purple), var(--neon-cyan));
    --shadow-neon: 0 0 20px rgba(0, 212, 255, 0.3);
    --shadow-purple: 0 0 20px rgba(139, 92, 246, 0.3);
    --font-mono: 'Courier New', monospace;
    --font-sans: 'Arial', sans-serif;
}

html {
    scroll-behavior: smooth;
}

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

.hidden {
    display: none !important;
}

.fade-out {
    opacity: 0;
    transition: opacity 1s ease-in-out;
}

.fade-in {
    opacity: 1;
    transition: opacity 1s ease-in-out;
}

.loading-screen {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: var(--primary-bg);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 9999;
}

.loading-container {
    text-align: center;
}

.rotating-cube {
    width: 80px;
    height: 80px;
    margin: 0 auto 40px;
    position: relative;
    transform-style: preserve-3d;
    animation: rotateCube 3s infinite linear;
}

.cube-face {
    position: absolute;
    width: 80px;
    height: 80px;
    background: var(--gradient-primary);
    border: 2px solid var(--neon-blue);
    box-shadow: var(--shadow-neon);
}

.cube-face.front { transform: rotateY(0deg) translateZ(40px); }
.cube-face.back { transform: rotateY(180deg) translateZ(40px); }
.cube-face.right { transform: rotateY(90deg) translateZ(40px); }
.cube-face.left { transform: rotateY(-90deg) translateZ(40px); }
.cube-face.top { transform: rotateX(90deg) translateZ(40px); }
.cube-face.bottom { transform: rotateX(-90deg) translateZ(40px); }

@keyframes rotateCube {
    0% { transform: rotateX(0deg) rotateY(0deg); }
    100% { transform: rotateX(360deg) rotateY(360deg); }
}

.loading-bar-container {
    width: 300px;
    height: 4px;
    background: var(--secondary-bg);
    border-radius: 2px;
    margin: 0 auto 20px;
    position: relative;
    overflow: hidden;
}

.loading-bar {
    height: 100%;
    background: var(--gradient-primary);
    border-radius: 2px;
    width: 0%;
    transition: width 0.3s ease;
    box-shadow: 0 0 10px var(--neon-blue);
}

.loading-percentage {
    font-family: var(--font-mono);
    color: var(--neon-blue);
    font-size: 1.2rem;
    margin-bottom: 10px;
}

.loading-text {
    font-family: var(--font-mono);
    color: var(--secondary-text);
    font-size: 1rem;
    animation: blink 1.5s infinite;
}

@keyframes blink {
    0%, 50% { opacity: 1; }
    51%, 100% { opacity: 0.3; }
}

.navigation {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: rgba(10, 10, 10, 0.9);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--accent-bg);
    z-index: 1000;
    padding: 1rem 0;
}

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

.logo {
    font-size: 1.5rem;
    font-weight: bold;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

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

.nav-link {
    color: var(--secondary-text);
    text-decoration: none;
    transition: all 0.3s ease;
    position: relative;
    padding: 0.5rem 1rem;
}

.nav-link:hover,
.nav-link.active {
    color: var(--neon-blue);
    text-shadow: 0 0 10px var(--neon-blue);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    transition: all 0.3s ease;
    transform: translateX(-50%);
}

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

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

.nav-toggle span {
    width: 25px;
    height: 3px;
    background: var(--primary-text);
    transition: 0.3s;
}

.main-content {
    padding-top: 80px;
}

.section {
    min-height: 100vh;
    padding: 4rem 2rem;
    display: flex;
    flex-direction: column;
    justify-content: center;
    position: relative;
}

.home-section {
    background: var(--primary-bg);
    position: relative;
    overflow: hidden;
}

.hero-container {
    max-width: 1200px;
    margin: 0 auto;
    text-align: center;
    position: relative;
    z-index: 2;
}

.glitch-text {
    position: relative;
    margin-bottom: 2rem;
}

.hero-title {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: bold;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    position: relative;
    animation: glitch 2s infinite;
}

.hero-title::before,
.hero-title::after {
    content: attr(data-text);
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.hero-title::before {
    animation: glitch-1 0.5s infinite;
    color: var(--neon-blue);
    z-index: -1;
}

.hero-title::after {
    animation: glitch-2 0.5s infinite;
    color: var(--neon-purple);
    z-index: -2;
}

@keyframes glitch {
    0%, 100% { transform: translate(0); }
    20% { transform: translate(-2px, 2px); }
    40% { transform: translate(-2px, -2px); }
    60% { transform: translate(2px, 2px); }
    80% { transform: translate(2px, -2px); }
}

@keyframes glitch-1 {
    0%, 100% { transform: translate(0); opacity: 1; }
    10% { transform: translate(-2px, -2px); opacity: 0.8; }
    20% { transform: translate(-2px, -2px); opacity: 0.8; }
    30% { transform: translate(-2px, -2px); opacity: 0.8; }
    40% { transform: translate(-2px, -2px); opacity: 0.8; }
    50% { transform: translate(-2px, -2px); opacity: 0.8; }
    60% { transform: translate(-2px, -2px); opacity: 0.8; }
    70% { transform: translate(-2px, -2px); opacity: 0.8; }
    80% { transform: translate(-2px, -2px); opacity: 0.8; }
    90% { transform: translate(-2px, -2px); opacity: 0.8; }
}

@keyframes glitch-2 {
    0%, 100% { transform: translate(0); opacity: 1; }
    10% { transform: translate(2px, 2px); opacity: 0.8; }
    20% { transform: translate(2px, 2px); opacity: 0.8; }
    30% { transform: translate(2px, 2px); opacity: 0.8; }
    40% { transform: translate(2px, 2px); opacity: 0.8; }
    50% { transform: translate(2px, 2px); opacity: 0.8; }
    60% { transform: translate(2px, 2px); opacity: 0.8; }
    70% { transform: translate(2px, 2px); opacity: 0.8; }
    80% { transform: translate(2px, 2px); opacity: 0.8; }
    90% { transform: translate(2px, 2px); opacity: 0.8; }
}

.hero-subtitle {
    font-size: 1.5rem;
    color: var(--secondary-text);
    margin-bottom: 3rem;
}

.typewriter {
    display: inline-block;
    border-right: 2px solid var(--neon-blue);
    animation: typewriter 4s steps(50) 1s infinite, blink-cursor 1s infinite;
    white-space: nowrap;
    overflow: hidden;
}

@keyframes typewriter {
    0% { width: 0; }
    50% { width: 100%; }
    100% { width: 100%; }
}

@keyframes blink-cursor {
    0%, 50% { border-color: var(--neon-blue); }
    51%, 100% { border-color: transparent; }
}

.hero-cta {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
    flex-wrap: wrap;
}

.cta-button {
    padding: 1rem 2rem;
    border: none;
    border-radius: 8px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.cta-button.primary {
    background: var(--gradient-primary);
    color: var(--primary-text);
    box-shadow: var(--shadow-neon);
}

.cta-button.secondary {
    background: transparent;
    color: var(--neon-blue);
    border: 2px solid var(--neon-blue);
}

.cta-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 20px rgba(0, 212, 255, 0.4);
}

.floating-elements {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 1;
}

.floating-element {
    position: absolute;
    width: 100px;
    height: 100px;
    background: var(--gradient-secondary);
    border-radius: 50%;
    opacity: 0.1;
    animation: float 6s ease-in-out infinite;
}

.floating-element:nth-child(1) {
    top: 20%;
    left: 10%;
    animation-delay: 0s;
}

.floating-element:nth-child(2) {
    top: 60%;
    right: 10%;
    animation-delay: 2s;
}

.floating-element:nth-child(3) {
    bottom: 20%;
    left: 50%;
    animation-delay: 4s;
}

@keyframes float {
    0%, 100% { transform: translateY(0px) rotate(0deg); }
    50% { transform: translateY(-20px) rotate(180deg); }
}

.about-section {
    background: var(--primary-bg);
    padding: 4rem 2rem;
}

.code-editor-container {
    max-width: 1200px;
    margin: 0 auto;
    background: var(--secondary-bg);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
    border: 1px solid var(--accent-bg);
}

.editor-header {
    background: var(--accent-bg);
    padding: 1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--accent-bg);
}

.editor-tabs {
    display: flex;
    gap: 1rem;
}

.tab {
    padding: 0.5rem 1rem;
    background: var(--secondary-bg);
    color: var(--secondary-text);
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-family: var(--font-mono);
    font-size: 0.9rem;
}

.tab.active,
.tab:hover {
    background: var(--primary-bg);
    color: var(--neon-blue);
    box-shadow: 0 0 10px rgba(0, 212, 255, 0.2);
}

.editor-actions {
    display: flex;
    gap: 0.5rem;
}

.close-btn, .minimize-btn, .maximize-btn {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    cursor: pointer;
}

.close-btn { background: #ff5f57; }
.minimize-btn { background: #ffbd2e; }
.maximize-btn { background: #28ca42; }

.editor-sidebar {
    background: var(--accent-bg);
    width: 250px;
    min-height: 500px;
    float: left;
    padding: 1rem;
    border-right: 1px solid var(--accent-bg);
}

.file-tree {
    font-family: var(--font-mono);
    font-size: 0.9rem;
}

.folder {
    margin-bottom: 1rem;
}

.folder-icon {
    margin-right: 0.5rem;
}

.folder-content {
    margin-left: 1.5rem;
    margin-top: 0.5rem;
}

.file {
    padding: 0.3rem 0.5rem;
    cursor: pointer;
    border-radius: 4px;
    transition: all 0.3s ease;
    margin-bottom: 0.2rem;
}

.file:hover,
.file.active {
    background: var(--secondary-bg);
    color: var(--neon-blue);
}

.editor-content {
    margin-left: 250px;
    min-height: 500px;
    position: relative;
}

.file-content {
    display: none;
    padding: 2rem;
    font-family: var(--font-mono);
    font-size: 0.9rem;
    line-height: 1.8;
}

.file-content.active {
    display: flex;
}

.line-numbers {
    color: var(--accent-text);
    margin-right: 2rem;
    text-align: right;
    min-width: 40px;
    user-select: none;
}

.line-numbers span {
    display: block;
    padding: 0.2rem 0;
}

.code-content {
    flex: 1;
    color: var(--primary-text);
}

.code-content pre {
    margin: 0;
    white-space: pre-wrap;
}

.projects-section {
    background: var(--secondary-bg);
    padding: 6rem 2rem;
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.section-title {
    font-size: clamp(2rem, 4vw, 3rem);
    margin-bottom: 1rem;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-subtitle {
    font-size: 1.2rem;
    color: var(--secondary-text);
}

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

.filter-btn {
    padding: 0.7rem 1.5rem;
    background: transparent;
    color: var(--secondary-text);
    border: 2px solid var(--accent-bg);
    border-radius: 25px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-weight: 500;
}

.filter-btn:hover,
.filter-btn.active {
    color: var(--neon-blue);
    border-color: var(--neon-blue);
    box-shadow: 0 0 15px rgba(0, 212, 255, 0.3);
    background: rgba(0, 212, 255, 0.1);
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.project-card {
    background: var(--primary-bg);
    border-radius: 12px;
    overflow: hidden;
    transition: all 0.3s ease;
    border: 1px solid var(--accent-bg);
    position: relative;
}

.project-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
    border-color: var(--neon-blue);
}

.project-image {
    height: 200px;
    background: var(--gradient-secondary);
    position: relative;
    overflow: hidden;
}

.project-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    display: flex;
    justify-content: center;
    align-items: center;
    opacity: 0;
    transition: all 0.3s ease;
}

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

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

.project-link {
    padding: 0.5rem 1rem;
    background: var(--gradient-primary);
    color: var(--primary-text);
    text-decoration: none;
    border-radius: 6px;
    font-weight: 600;
    transition: all 0.3s ease;
}

.project-link:hover {
    transform: scale(1.05);
    box-shadow: var(--shadow-neon);
}

.project-info {
    padding: 1.5rem;
}

.project-title {
    font-size: 1.3rem;
    margin-bottom: 0.5rem;
    color: var(--primary-text);
}

.project-description {
    color: var(--secondary-text);
    margin-bottom: 1rem;
    line-height: 1.6;
}

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

.tech-tag {
    background: var(--accent-bg);
    color: var(--neon-blue);
    padding: 0.3rem 0.8rem;
    border-radius: 15px;
    font-size: 0.8rem;
    font-weight: 500;
    border: 1px solid var(--neon-blue);
}

.knowledge-section {
    background: var(--primary-bg);
    padding: 6rem 2rem;
}

.knowledge-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.knowledge-card {
    background: var(--secondary-bg);
    border-radius: 12px;
    padding: 2rem;
    border: 1px solid var(--accent-bg);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

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

.knowledge-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.2);
    border-color: var(--neon-blue);
}

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

.knowledge-date {
    color: var(--accent-text);
    font-size: 0.9rem;
    font-family: var(--font-mono);
}

.knowledge-category {
    background: var(--gradient-primary);
    color: var(--primary-text);
    padding: 0.3rem 0.8rem;
    border-radius: 15px;
    font-size: 0.8rem;
    font-weight: 600;
}

.knowledge-title {
    font-size: 1.3rem;
    margin-bottom: 1rem;
    color: var(--primary-text);
}

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

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

.knowledge-tag {
    background: var(--accent-bg);
    color: var(--secondary-text);
    padding: 0.3rem 0.8rem;
    border-radius: 15px;
    font-size: 0.8rem;
}

.knowledge-link {
    color: var(--neon-blue);
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
}

.knowledge-link:hover {
    color: var(--neon-cyan);
    text-shadow: 0 0 10px var(--neon-cyan);
}

.contact-section {
    background: var(--secondary-bg);
    padding: 6rem 2rem;
}

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

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

.contact-method {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    padding: 1.5rem;
    background: var(--primary-bg);
    border-radius: 12px;
    border: 1px solid var(--accent-bg);
    transition: all 0.3s ease;
}

.contact-method:hover {
    border-color: var(--neon-blue);
    box-shadow: 0 5px 15px rgba(0, 212, 255, 0.2);
}

.contact-icon {
    font-size: 2rem;
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-primary);
    border-radius: 50%;
}

.contact-details h3 {
    color: var(--primary-text);
    margin-bottom: 0.5rem;
}

.contact-details p {
    color: var(--secondary-text);
    font-family: var(--font-mono);
}

.contact-form {
    background: var(--primary-bg);
    padding: 2rem;
    border-radius: 12px;
    border: 1px solid var(--accent-bg);
}

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

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--primary-text);
    font-weight: 600;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 1rem;
    background: var(--secondary-bg);
    border: 2px solid var(--accent-bg);
    border-radius: 8px;
    color: var(--primary-text);
    font-family: inherit;
    transition: all 0.3s ease;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--neon-blue);
    box-shadow: 0 0 10px rgba(0, 212, 255, 0.2);
}

.submit-btn {
    width: 100%;
    padding: 1rem 2rem;
    background: var(--gradient-primary);
    color: var(--primary-text);
    border: none;
    border-radius: 8px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.submit-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-neon);
}

.submit-btn:disabled {
    opacity: 0.7;
    cursor: not-allowed;
}

.success-message {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: var(--primary-bg);
    padding: 3rem;
    border-radius: 12px;
    border: 2px solid var(--neon-cyan);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.5);
    text-align: center;
    z-index: 1000;
}

.success-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
}

.success-icon {
    font-size: 3rem;
    color: var(--neon-cyan);
}

.success-content h3 {
    color: var(--primary-text);
    margin-bottom: 0.5rem;
}

.success-content p {
    color: var(--secondary-text);
}

.footer {
    background: var(--primary-bg);
    border-top: 1px solid var(--accent-bg);
    padding: 2rem;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.footer-left p {
    color: var(--secondary-text);
}

.social-links {
    display: flex;
    gap: 1.5rem;
}

.social-link {
    color: var(--secondary-text);
    text-decoration: none;
    transition: all 0.3s ease;
}

.social-link:hover {
    color: var(--neon-blue);
    text-shadow: 0 0 10px var(--neon-blue);
}

@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 70px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 70px);
        background: rgba(10, 10, 10, 0.95);
        backdrop-filter: blur(10