:root {
    --primary-color: #2563eb;
    --secondary-color: #1e40af;
    --accent-color: #3b82f6;
    --text-primary: #1f2937;
    --text-secondary: #6b7280;
    --text-light: #9ca3af;
    --bg-primary: #ffffff;
    --bg-secondary: #f9fafb;
    --bg-accent: #eff6ff;
    --border-color: #e5e7eb;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    --border-radius: 12px;
    --transition: all 0.3s ease;
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
    min-height: 100vh;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    background: var(--bg-primary);
    box-shadow: var(--shadow-xl);
    min-height: 100vh;
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: white;
    padding: 4rem 2rem 2rem;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg width="100" height="100" xmlns="http://www.w3.org/2000/svg"><rect width="100" height="100" fill="none"/><circle cx="50" cy="50" r="40" stroke="rgba(255,255,255,0.1)" stroke-width="2" fill="none"/></svg>');
    opacity: 0.1;
}

.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
    margin-bottom: 2rem;
}

.name {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    letter-spacing: -0.025em;
    animation: fadeInUp 0.8s ease;
}

.title {
    font-size: 1.5rem;
    font-weight: 400;
    opacity: 0.95;
    margin-bottom: 1.5rem;
    animation: fadeInUp 0.8s ease 0.2s backwards;
}

.hero-meta {
    display: flex;
    justify-content: center;
    gap: 2rem;
    flex-wrap: wrap;
    animation: fadeInUp 0.8s ease 0.4s backwards;
}

.meta-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.95rem;
    opacity: 0.9;
}

/* Navigation */
.nav {
    display: flex;
    justify-content: center;
    gap: 1rem;
    flex-wrap: wrap;
    position: relative;
    z-index: 1;
}

.nav-link {
    color: white;
    text-decoration: none;
    padding: 0.75rem 1.5rem;
    border-radius: 50px;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    transition: var(--transition);
    font-weight: 500;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.nav-link:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

/* Hero Contact */
.hero-contact {
    display: flex;
    justify-content: center;
    gap: 1rem;
    flex-wrap: wrap;
    margin-top: 1.5rem;
    margin-bottom: 1.5rem;
    position: relative;
    z-index: 1;
    animation: fadeInUp 0.8s ease 0.6s backwards;
}

.contact-link {
    color: white;
    text-decoration: none;
    padding: 0.6rem 1.2rem;
    border-radius: 25px;
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.3);
    font-size: 0.9rem;
    font-weight: 500;
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 0.4rem;
}

.contact-link:hover {
    background: rgba(255, 255, 255, 0.25);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

/* Sections */
.section {
    padding: 4rem 2rem;
    animation: fadeIn 0.6s ease;
}

.section:nth-child(even) {
    background: var(--bg-secondary);
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 2.5rem;
    text-align: center;
    color: var(--text-primary);
    position: relative;
    padding-bottom: 1rem;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
    border-radius: 2px;
}

/* About Section */
.about-content {
    max-width: 900px;
    margin: 0 auto;
}

.about-text {
    font-size: 1.15rem;
    line-height: 1.8;
    color: var(--text-secondary);
    text-align: center;
    margin-bottom: 3rem;
}

.highlights {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.highlight-card {
    text-align: center;
    padding: 2rem;
    background: var(--bg-accent);
    border-radius: var(--border-radius);
    transition: var(--transition);
}

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

.highlight-number {
    font-size: 3rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.highlight-label {
    font-size: 0.95rem;
    color: var(--text-secondary);
    font-weight: 500;
}

/* Leadership Section */
.leadership {
    background: var(--bg-accent);
}

.leadership-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    max-width: 1000px;
    margin: 0 auto;
}

.leadership-card {
    background: var(--bg-primary);
    padding: 2rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-md);
    transition: var(--transition);
}

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

.leadership-card h3 {
    color: var(--primary-color);
    font-size: 1.4rem;
    margin-bottom: 1rem;
    font-weight: 600;
}

.leadership-card ul {
    list-style: none;
}

.leadership-card li {
    padding: 0.5rem 0;
    padding-left: 1.5rem;
    position: relative;
    color: var(--text-secondary);
}

.leadership-card li::before {
    content: '→';
    position: absolute;
    left: 0;
    color: var(--primary-color);
    font-weight: bold;
}

/* Timeline */
.timeline {
    max-width: 900px;
    margin: 0 auto;
    position: relative;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 3px;
    background: linear-gradient(180deg, var(--primary-color), var(--accent-color));
}

.experience-item {
    margin-bottom: 3rem;
    padding-left: 3rem;
    position: relative;
    opacity: 0;
    animation: slideInLeft 0.6s ease forwards;
}

.experience-item::before {
    content: '';
    position: absolute;
    left: -6px;
    top: 8px;
    width: 15px;
    height: 15px;
    background: var(--primary-color);
    border-radius: 50%;
    border: 3px solid var(--bg-primary);
    box-shadow: 0 0 0 3px var(--primary-color);
}

.experience-header {
    margin-bottom: 1rem;
}

.experience-company {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 0.25rem;
}

.experience-position {
    font-size: 1.2rem;
    color: var(--primary-color);
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.experience-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 1.5rem;
    font-size: 0.9rem;
    color: var(--text-light);
    margin-bottom: 1rem;
}

.experience-meta span {
    display: flex;
    align-items: center;
    gap: 0.3rem;
}

.experience-context {
    background: var(--bg-accent);
    padding: 1rem;
    border-radius: 8px;
    font-style: italic;
    color: var(--text-secondary);
    margin-bottom: 1rem;
    border-left: 3px solid var(--primary-color);
}

.experience-description {
    color: var(--text-secondary);
    margin-bottom: 1rem;
    line-height: 1.7;
}

.experience-tasks {
    margin: 1rem 0;
}

.experience-tasks h4 {
    color: var(--text-primary);
    margin-bottom: 0.5rem;
    font-weight: 600;
}

.experience-tasks ul {
    list-style: none;
    padding: 0;
}

.experience-tasks li {
    padding: 0.4rem 0 0.4rem 1.5rem;
    color: var(--text-secondary);
    position: relative;
}

.experience-tasks li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--primary-color);
    font-weight: bold;
}

.tech-stack {
    margin-top: 1rem;
    padding: 1rem;
    background: var(--bg-secondary);
    border-radius: 8px;
}

.tech-stack h4 {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

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

.tech-tag {
    display: inline-block;
    padding: 0.4rem 0.8rem;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    font-size: 0.85rem;
    color: var(--text-secondary);
    transition: var(--transition);
}

.tech-tag:hover {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

/* Skills Section */
.skills-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    max-width: 1000px;
    margin: 0 auto;
}

.skill-category {
    background: var(--bg-primary);
    padding: 2rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-md);
}

.skill-category h3 {
    color: var(--primary-color);
    margin-bottom: 1.5rem;
    font-size: 1.3rem;
    font-weight: 600;
    border-bottom: 2px solid var(--bg-accent);
    padding-bottom: 0.5rem;
}

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

.skill-tag {
    display: inline-block;
    padding: 0.5rem 1rem;
    background: var(--bg-accent);
    color: var(--primary-color);
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 500;
    transition: var(--transition);
}

.skill-tag:hover {
    background: var(--primary-color);
    color: white;
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* Early Career Section - Condensed Timeline */
.early-career {
    background: var(--bg-secondary);
}

.early-career-intro {
    text-align: center;
    color: var(--text-secondary);
    font-size: 0.95rem;
    font-style: italic;
    margin-bottom: 2rem;
    opacity: 0.8;
}

.early-timeline {
    max-width: 900px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr;
    gap: 0.5rem;
}

.early-career-item {
    display: grid;
    grid-template-columns: 100px 200px 1fr;
    gap: 1.5rem;
    padding: 0.75rem 1rem;
    background: var(--bg-primary);
    border-radius: 8px;
    border-left: 3px solid var(--border-color);
    transition: var(--transition);
    opacity: 0;
    animation: fadeInUp 0.4s ease forwards;
}

.early-career-item:hover {
    border-left-color: var(--primary-color);
    transform: translateX(5px);
    box-shadow: var(--shadow-sm);
}

.early-period {
    font-weight: 600;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.early-company {
    font-weight: 600;
    color: var(--primary-color);
    font-size: 0.95rem;
}

.early-position {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* Education Section */
.education-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    max-width: 1000px;
    margin: 0 auto;
}

.education-item {
    background: var(--bg-primary);
    padding: 2rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-md);
    border-left: 4px solid var(--primary-color);
    transition: var(--transition);
}

.education-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
}

.education-year {
    display: inline-block;
    background: var(--primary-color);
    color: white;
    padding: 0.4rem 1rem;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.education-title {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.education-institution {
    color: var(--text-secondary);
    font-size: 0.95rem;
    margin-bottom: 0.25rem;
}

.education-location {
    color: var(--text-light);
    font-size: 0.9rem;
}

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

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

.footer-name {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.footer-contact {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 0.75rem;
    flex-wrap: wrap;
    margin: 1.5rem 0;
}

.footer-link {
    color: white;
    text-decoration: none;
    opacity: 0.9;
    transition: var(--transition);
    font-size: 0.95rem;
}

.footer-link:hover {
    opacity: 1;
    text-decoration: underline;
}

.footer-separator {
    opacity: 0.5;
}

.footer-note {
    margin-top: 1.5rem;
    font-size: 0.85rem;
    opacity: 0.7;
}

/* Animations */
@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* Responsive */
@media (max-width: 768px) {
    .name {
        font-size: 2.5rem;
    }

    .title {
        font-size: 1.2rem;
    }

    .section {
        padding: 3rem 1.5rem;
    }

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

    .hero-meta {
        flex-direction: column;
        gap: 0.5rem;
    }

    .timeline::before {
        left: 0;
    }

    .experience-item {
        padding-left: 2rem;
    }

    .experience-meta {
        flex-direction: column;
        gap: 0.5rem;
    }

    .hero-contact {
        flex-direction: column;
        align-items: center;
    }

    .contact-link {
        width: 100%;
        max-width: 280px;
        justify-content: center;
    }

    .footer-contact {
        flex-direction: column;
        gap: 0.5rem;
    }

    .footer-separator {
        display: none;
    }

    .early-career-item {
        grid-template-columns: 1fr;
        gap: 0.25rem;
    }

    .early-period {
        font-size: 0.85rem;
        opacity: 0.8;
    }
}

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

.projects-intro {
    max-width: 900px;
    margin: 0 auto 3rem;
    text-align: center;
}

.projects-intro p {
    font-size: 1.05rem;
    line-height: 1.7;
    color: var(--text-secondary);
    font-style: italic;
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(450px, 1fr));
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.project-card {
    background: var(--bg-primary);
    padding: 2rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-md);
    border-left: 4px solid var(--primary-color);
    transition: var(--transition);
    opacity: 0;
    animation: slideInUp 0.6s ease forwards;
}

.project-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
    border-left-color: var(--accent-color);
}

.project-header {
    margin-bottom: 1rem;
}

.project-title {
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 0.75rem;
}

.project-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 1.5rem;
    font-size: 0.9rem;
    color: var(--text-light);
}

.project-meta span {
    display: flex;
    align-items: center;
    gap: 0.3rem;
}

.project-context {
    background: var(--bg-accent);
    padding: 1rem;
    border-radius: 8px;
    font-size: 0.95rem;
    color: var(--text-secondary);
    margin-bottom: 1rem;
    border-left: 3px solid var(--accent-color);
}

.project-description {
    color: var(--text-secondary);
    margin-bottom: 1rem;
    line-height: 1.7;
}

.project-tasks {
    margin: 1rem 0;
}

.project-tasks h4 {
    color: var(--text-primary);
    margin-bottom: 0.5rem;
    font-weight: 600;
    font-size: 0.95rem;
}

.project-tasks ul {
    list-style: none;
    padding: 0;
}

.project-tasks li {
    padding: 0.4rem 0 0.4rem 1.5rem;
    color: var(--text-secondary);
    position: relative;
    font-size: 0.95rem;
}

.project-tasks li::before {
    content: '→';
    position: absolute;
    left: 0;
    color: var(--accent-color);
    font-weight: bold;
}

/* Responsive for Projects */
@media (max-width: 1024px) {
    .projects-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .project-card {
        padding: 1.5rem;
    }

    .project-title {
        font-size: 1.2rem;
    }

    .project-meta {
        flex-direction: column;
        gap: 0.5rem;
    }

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

/* Animation for project cards */
@keyframes slideInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Language Selector */
.language-selector {
    display: flex;
    align-items: center;
    justify-content: center;
}

.language-selector select {
    appearance: none;
    -webkit-appearance: none;
    -moz-appearance: none;
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.3);
    color: white;
    padding: 0.6rem 2rem 0.6rem 1.2rem;
    border-radius: 25px;
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    background-image: url('data:image/svg+xml;charset=UTF-8,<svg xmlns="http://www.w3.org/2000/svg" width="12" height="8" viewBox="0 0 12 8"><path fill="white" d="M6 8L0 2l1.5-1.5L6 5 10.5.5 12 2z"/></svg>');
    background-repeat: no-repeat;
    background-position: right 0.8rem center;
    background-size: 12px;
}

.language-selector select:hover {
    background-color: rgba(255, 255, 255, 0.25);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

.language-selector select:focus {
    outline: none;
    border-color: rgba(255, 255, 255, 0.5);
    box-shadow: 0 0 0 3px rgba(255, 255, 255, 0.1);
}

.language-selector select option {
    background: var(--primary-color);
    color: white;
    padding: 0.5rem;
}

/* Print styles */
@media print {
    body {
        background: white;
    }

    .container {
        box-shadow: none;
    }

    .nav,
    .language-selector {
        display: none;
    }

    .section {
        page-break-inside: avoid;
    }

    .experience-item,
    .education-item,
    .leadership-card,
    .project-card {
        page-break-inside: avoid;
    }

    .project-card {
        box-shadow: none;
        border: 1px solid var(--border-color);
    }

    .projects-grid {
        display: block;
    }

    .project-card {
        margin-bottom: 1rem;
    }
}