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

:root {
    --bg-primary: #0a0a0a;
    --bg-secondary: #1a1a1a;
    --bg-card: #262626;
    --text-primary: #ffffff;
    --text-secondary: #b3b3b3;
    --accent-primary: #00ff88;
    --accent-secondary: #ff6b35;
    --border-color: #333333;
    --shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

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

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(10, 10, 10, 0.9);
    backdrop-filter: blur(10px);
    z-index: 1000;
    padding: 20px 0;
    border-bottom: 1px solid var(--border-color);
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-brand .brand-letter {
    font-size: 28px;
    font-weight: bold;
    color: var(--accent-primary);
    border: 2px solid var(--accent-primary);
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 8px;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 40px;
}

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

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

.nav-social {
    display: flex;
    gap: 20px;
}

.social-link {
    color: var(--text-secondary);
    font-size: 20px;
    transition: color 0.3s ease;
}

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

.main-content {
    margin-top: 90px;
    min-height: calc(100vh - 90px);
}

.hero {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    position: relative;
    padding: 100px 0;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.hero-title {
    font-size: 4rem;
    font-weight: 700;
    line-height: 1.1;
    margin-bottom: 20px;
}

.hero-subtitle {
    font-size: 1.5rem;
    color: var(--accent-primary);
    margin-bottom: 30px;
    font-weight: 400;
}

.hero-description {
    font-size: 1.2rem;
    color: var(--text-secondary);
    margin-bottom: 40px;
    line-height: 1.8;
}

.hero-actions {
    display: flex;
    gap: 20px;
}

.btn {
    padding: 16px 32px;
    border: none;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    transition: all 0.3s ease;
    display: inline-block;
}

.btn-primary {
    background: var(--accent-primary);
    color: var(--bg-primary);
}

.btn-primary:hover {
    background: #00cc6a;
    transform: translateY(-2px);
}

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

.btn-secondary:hover {
    border-color: var(--accent-primary);
    color: var(--accent-primary);
}

.code-snippet {
    background: var(--bg-card);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow);
    border: 1px solid var(--border-color);
}

.code-header {
    background: var(--bg-secondary);
    padding: 15px 20px;
    display: flex;
    align-items: center;
    gap: 15px;
    border-bottom: 1px solid var(--border-color);
}

.code-dots::before {
    content: "●●●";
    color: var(--accent-secondary);
    font-size: 14px;
    letter-spacing: 5px;
}

.code-title {
    color: var(--text-secondary);
    font-size: 14px;
}

.code-content {
    padding: 30px;
    font-family: 'Monaco', 'Menlo', monospace;
    font-size: 14px;
    line-height: 1.8;
}

.code-line {
    display: block;
    margin: 5px 0;
}

.keyword { color: #ff79c6; }
.class-name { color: #8be9fd; }
.function { color: #50fa7b; }
.string { color: #f1fa8c; }

.scroll-indicator {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    color: var(--text-secondary);
    font-size: 12px;
    letter-spacing: 2px;
}

.scroll-indicator i {
    animation: bounce 2s infinite;
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% { transform: translateY(0); }
    40% { transform: translateY(-10px); }
    60% { transform: translateY(-5px); }
}

.portfolio-section, .about-section, .contact-section {
    padding: 100px 0;
}

.section-header {
    text-align: center;
    margin-bottom: 80px;
}

.section-header h1 {
    font-size: 3rem;
    margin-bottom: 20px;
    text-align: center;
}

.section-header p {
    font-size: 1.2rem;
    color: var(--text-secondary);
    text-align: center;
}

.work-process, .abilities-section, .technologies-section, .projects-section {
    margin-bottom: 80px;
}

.work-process h2, .abilities-section h2, .technologies-section h2, .projects-section h2 {
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: 50px;
    color: var(--accent-primary);
}

.process-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
}

.process-card {
    background: var(--bg-card);
    padding: 40px;
    border-radius: 12px;
    border: 1px solid var(--border-color);
    text-align: center;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.process-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow);
}

.process-card i {
    font-size: 3rem;
    color: var(--accent-primary);
    margin-bottom: 20px;
}

.process-card h3 {
    font-size: 1.5rem;
    margin-bottom: 15px;
}

.abilities-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
}

.ability-item {
    background: var(--bg-card);
    padding: 30px;
    border-radius: 12px;
    border: 1px solid var(--border-color);
    text-align: center;
    transition: transform 0.3s ease;
}

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

.ability-icon {
    font-size: 3rem;
    margin-bottom: 20px;
}

.tech-list {
    display: flex;
    flex-wrap: wrap;
    gap: 15px;
    justify-content: center;
}

.tech-tag {
    background: var(--bg-card);
    color: var(--accent-primary);
    padding: 10px 20px;
    border-radius: 25px;
    border: 1px solid var(--accent-primary);
    font-weight: 500;
    transition: all 0.3s ease;
}

.tech-tag:hover {
    background: var(--accent-primary);
    color: var(--bg-primary);
}

.category-title {
    font-size: 1.5rem;
    color: var(--accent-primary);
    margin-bottom: 30px;
    text-align: center;
    border-bottom: 2px solid var(--border-color);
    padding-bottom: 15px;
}

.project-categories {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-bottom: 50px;
}

.category-btn {
    background: transparent;
    color: var(--text-secondary);
    border: 2px solid var(--border-color);
    padding: 12px 30px;
    border-radius: 25px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 16px;
    font-weight: 500;
}

.category-btn.active,
.category-btn:hover {
    border-color: var(--accent-primary);
    color: var(--accent-primary);
}

.projects-slider {
    display: flex;
    gap: 30px;
    overflow-x: auto;
    padding: 20px 0;
    scroll-behavior: smooth;
}

.projects-slider::-webkit-scrollbar {
    height: 8px;
}

.projects-slider::-webkit-scrollbar-track {
    background: var(--bg-secondary);
    border-radius: 4px;
}

.projects-slider::-webkit-scrollbar-thumb {
    background: var(--accent-primary);
    border-radius: 4px;
}

.project-card {
    background: var(--bg-card);
    border-radius: 12px;
    overflow: hidden;
    min-width: 400px;
    border: 1px solid var(--border-color);
    transition: transform 0.3s ease;
}

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

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

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

.project-content {
    padding: 30px;
}

.project-content h3 {
    font-size: 1.5rem;
    margin-bottom: 15px;
    color: var(--accent-primary);
}

.project-description {
    color: var(--text-secondary);
    margin-bottom: 25px;
    line-height: 1.6;
}

.project-tech h4,
.detail-item h4 {
    font-size: 1rem;
    margin-bottom: 10px;
    color: var(--text-primary);
}

.tech-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 20px;
}

.tech-tag-small {
    background: var(--bg-secondary);
    color: var(--accent-primary);
    padding: 5px 12px;
    border-radius: 15px;
    font-size: 12px;
    border: 1px solid var(--accent-primary);
}

.detail-item {
    margin-bottom: 20px;
}

.detail-item p {
    color: var(--text-secondary);
    line-height: 1.5;
}

.about-content {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 60px;
    margin-bottom: 80px;
}

.about-column {
    background: var(--bg-card);
    padding: 40px;
    border-radius: 12px;
    border: 1px solid var(--border-color);
}

.journey-section,
.experience-section,
.hobbies-section,
.recognitions-section {
    margin-bottom: 0;
}

.journey-section h2,
.experience-section h2,
.hobbies-section h2,
.recognitions-section h2 {
    font-size: 1.8rem;
    color: var(--accent-primary);
    margin-bottom: 25px;
    text-align: left;
}

.role-badge {
    display: inline-block;
    background: var(--accent-primary);
    color: var(--bg-primary);
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 20px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.key-metrics {
    display: flex;
    gap: 30px;
    margin: 30px 0;
    flex-wrap: wrap;
}

.metric-item {
    text-align: center;
}

.metric-number {
    display: block;
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--accent-primary);
    line-height: 1;
}

.metric-label {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-top: 5px;
}

.core-tech-stack {
    margin: 30px 0;
}

.core-tech-stack h3 {
    font-size: 1.2rem;
    margin-bottom: 15px;
    color: var(--text-primary);
}

.core-tech-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.core-tech-tag {
    background: var(--bg-card);
    color: var(--accent-primary);
    padding: 8px 16px;
    border-radius: 20px;
    border: 1px solid var(--accent-primary);
    font-weight: 500;
    font-size: 14px;
}

.standout-achievement {
    background: var(--bg-card);
    padding: 20px;
    border-radius: 8px;
    border-left: 4px solid var(--accent-primary);
    margin: 30px 0;
    display: flex;
    align-items: center;
    gap: 15px;
}

.standout-achievement i {
    color: var(--accent-primary);
    font-size: 1.5rem;
}

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

.btn-outline:hover {
    background: var(--accent-primary);
    color: var(--bg-primary);
}

.comment { color: #6272a4; }

.project-impact {
    background: var(--accent-primary);
    color: var(--bg-primary);
    padding: 8px 15px;
    border-radius: 20px;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-weight: 600;
    font-size: 14px;
    margin-bottom: 15px;
}

.project-links {
    display: flex;
    gap: 15px;
    margin-top: 20px;
}

.project-link {
    background: var(--bg-secondary);
    color: var(--text-primary);
    padding: 10px 20px;
    border-radius: 8px;
    text-decoration: none;
    border: 1px solid var(--border-color);
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 8px;
}

.project-link:hover {
    border-color: var(--accent-primary);
    color: var(--accent-primary);
}

.technical-skills {
    margin-bottom: 80px;
}

.skills-categories {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 40px;
}

.skill-category h3 {
    font-size: 1.5rem;
    color: var(--accent-primary);
    margin-bottom: 25px;
    border-bottom: 2px solid var(--border-color);
    padding-bottom: 10px;
}

.skill-items {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.skill-item {
    background: var(--bg-card);
    padding: 20px;
    border-radius: 8px;
    border: 1px solid var(--border-color);
}

.skill-name {
    font-weight: 600;
    color: var(--text-primary);
    display: block;
    margin-bottom: 8px;
}

.skill-level {
    background: var(--bg-secondary);
    height: 8px;
    border-radius: 4px;
    overflow: hidden;
    margin-bottom: 5px;
}

.skill-bar {
    height: 100%;
    background: var(--accent-primary);
    border-radius: 4px;
    transition: width 0.3s ease;
}

.skill-years {
    font-size: 12px;
    color: var(--text-secondary);
    float: right;
}

.approach-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
}

.approach-card {
    background: var(--bg-card);
    padding: 30px;
    border-radius: 12px;
    border: 1px solid var(--border-color);
    text-align: center;
    transition: transform 0.3s ease;
}

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

.approach-card i {
    font-size: 2.5rem;
    color: var(--accent-primary);
    margin-bottom: 20px;
}

.experience-timeline {
    position: relative;
}

.experience-timeline::before {
    content: '';
    position: absolute;
    left: 20px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--accent-primary);
}

.experience-item {
    background: var(--bg-secondary);
    padding: 25px;
    margin-bottom: 25px;
    border-radius: 8px;
    border: 1px solid var(--border-color);
    margin-left: 50px;
    position: relative;
}

.experience-item::before {
    content: '';
    position: absolute;
    left: -38px;
    top: 25px;
    width: 12px;
    height: 12px;
    background: var(--accent-primary);
    border-radius: 50%;
    border: 3px solid var(--bg-primary);
}

.experience-period {
    background: var(--accent-primary);
    color: var(--bg-primary);
    padding: 4px 12px;
    border-radius: 12px;
    font-size: 12px;
    font-weight: 600;
    display: inline-block;
    margin-bottom: 10px;
}

.experience-item h4 {
    font-size: 1.3rem;
    color: var(--text-primary);
    margin-bottom: 5px;
}

.company {
    color: var(--accent-primary);
    font-weight: 600;
    margin-bottom: 15px;
}

.achievements {
    list-style: none;
    margin: 0;
    padding: 0;
}

.achievements li {
    padding: 5px 0;
    color: var(--text-secondary);
    position: relative;
    padding-left: 20px;
}

.achievements li::before {
    content: '▸';
    color: var(--accent-primary);
    position: absolute;
    left: 0;
}

.growth-story {
    background: var(--bg-secondary);
    padding: 20px;
    border-radius: 8px;
    border-left: 4px solid var(--accent-primary);
    margin-bottom: 25px;
}

.certifications h3 {
    font-size: 1.2rem;
    margin-bottom: 15px;
    color: var(--text-primary);
}

.cert-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.cert-item {
    background: var(--bg-secondary);
    padding: 12px 16px;
    border-radius: 6px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border: 1px solid var(--border-color);
}

.cert-name {
    color: var(--text-primary);
    font-weight: 500;
}

.cert-year {
    color: var(--accent-primary);
    font-size: 14px;
    font-weight: 600;
}

.award-impact {
    color: var(--text-secondary);
    line-height: 1.4;
    font-size: 0.9rem;
    font-style: italic;
}

.collaboration-points {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.collab-item {
    display: flex;
    align-items: center;
    gap: 12px;
    background: var(--bg-secondary);
    padding: 15px;
    border-radius: 6px;
    border: 1px solid var(--border-color);
}

.collab-item i {
    color: var(--accent-primary);
    font-size: 1.1rem;
}

.interests-brief {
    margin-top: 25px;
}

.interests-brief h3 {
    font-size: 1.2rem;
    margin-bottom: 15px;
    color: var(--text-primary);
}

.interests-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.interest-tag {
    background: var(--bg-secondary);
    color: var(--text-secondary);
    padding: 6px 12px;
    border-radius: 15px;
    font-size: 12px;
    border: 1px solid var(--border-color);
}

.experience-list {
    list-style: none;
    margin: 0;
}

.experience-item {
    background: var(--bg-secondary);
    padding: 15px;
    margin-bottom: 10px;
    border-radius: 8px;
    border: 1px solid var(--border-color);
    border-left: 4px solid var(--accent-primary);
    font-size: 0.9rem;
}

.hobbies-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.hobby-item {
    background: var(--bg-secondary);
    padding: 8px 15px;
    border-radius: 20px;
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    transition: all 0.3s ease;
    font-size: 0.9rem;
}

.awards-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 15px;
}

.award-card {
    background: var(--bg-secondary);
    padding: 20px;
    border-radius: 8px;
    border: 1px solid var(--border-color);
    position: relative;
    transition: transform 0.3s ease;
}

.award-year {
    position: absolute;
    top: 15px;
    right: 15px;
    background: var(--accent-primary);
    color: var(--bg-primary);
    padding: 3px 8px;
    border-radius: 12px;
    font-weight: 600;
    font-size: 12px;
}

.award-title {
    font-size: 1.1rem;
    color: var(--accent-primary);
    margin-bottom: 8px;
}

.award-org {
    color: var(--text-secondary);
    margin-bottom: 10px;
    font-weight: 500;
    font-size: 0.9rem;
}

.award-desc {
    color: var(--text-secondary);
    line-height: 1.4;
    font-size: 0.85rem;
}

.links-section {
    margin-bottom: 60px;
}

.quick-links {
    display: flex;
    justify-content: center;
    gap: 30px;
    flex-wrap: wrap;
}

.link-card {
    background: var(--bg-card);
    padding: 30px;
    border-radius: 12px;
    border: 1px solid var(--border-color);
    text-decoration: none;
    color: var(--text-primary);
    text-align: center;
    min-width: 200px;
    transition: all 0.3s ease;
}

.link-card:hover {
    transform: translateY(-5px);
    border-color: var(--accent-primary);
}

.link-card i {
    font-size: 2rem;
    color: var(--accent-primary);
    margin-bottom: 15px;
    display: block;
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    max-width: 1000px;
    margin: 0 auto;
    margin-left: 300px;
}

.contact-info h2,
.contact-form h2 {
    font-size: 2rem;
    color: var(--accent-primary);
    margin-bottom: 30px;
}

.contact-methods {
    margin-bottom: 40px;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 20px;
    margin-bottom: 25px;
    padding: 20px;
    background: var(--bg-card);
    border-radius: 8px;
    border: 1px solid var(--border-color);
}

.contact-item i {
    font-size: 1.5rem;
    color: var(--accent-primary);
    width: 30px;
}

.contact-details h3 {
    margin-bottom: 5px;
    font-size: 1rem;
}

.contact-details a,
.contact-details span {
    color: var(--text-secondary);
    text-decoration: none;
}

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

.social-links h3 {
    margin-bottom: 20px;
    font-size: 1.2rem;
}

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

.social-grid .social-link {
    background: var(--bg-card);
    padding: 15px 20px;
    border-radius: 8px;
    border: 1px solid var(--border-color);
    text-decoration: none;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 10px;
    transition: all 0.3s ease;
}

.social-grid .social-link:hover {
    border-color: var(--accent-primary);
    color: var(--accent-primary);
}

.message-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.form-group {
    display: flex;
    flex-direction: column;
}

.form-group label {
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--text-primary);
}

.form-group input,
.form-group textarea {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 15px;
    color: var(--text-primary);
    font-size: 16px;
    transition: border-color 0.3s ease;
}

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

.footer {
    background: var(--bg-secondary);
    padding: 30px 0;
    text-align: center;
    border-top: 1px solid var(--border-color);
    color: var(--text-secondary);
}

@media (max-width: 768px) {
    .hero-content {
        grid-template-columns: 1fr;
        gap: 40px;
        text-align: center;
    }

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

    .nav-links {
        display: none;
    }

    .contact-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }

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

    .project-categories {
        flex-direction: column;
        align-items: center;
    }

    .quick-links {
        flex-direction: column;
        align-items: center;
    }

    .about-content {
        grid-template-columns: 1fr;
        gap: 30px;
    }
}