:root {
    --color-bg: #ffffff;
    --color-surface: #f8f9fa;
    --color-surface-elevated: #ffffff;
    --color-text-primary: #1a1a1a;
    --color-text-secondary: #4a5568;
    --color-accent: #00d4aa;
    --color-accent-dim: #008c72;
    --color-border: #e2e8f0;
    
    --font-display: 'DM Serif Display', serif;
    --font-body: 'Work Sans', sans-serif;
    
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 3rem;
    --spacing-xl: 5rem;
    
    --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-smooth: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    scroll-behavior: smooth;
}

section[id] {
    scroll-margin-top: 90px;
}

body {
    font-family: var(--font-body);
    background: var(--color-bg);
    color: var(--color-text-primary);
    line-height: 1.7;
    overflow-x: hidden;
    position: relative;
    margin: 0;
    padding: 0;
}

main {
    background: var(--color-bg);
    position: relative;
}

/* Grain texture overlay */
.grain-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 9999;
    opacity: 0.03;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 400 400' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noiseFilter'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='3.5' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noiseFilter)'/%3E%3C/svg%3E");
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* Hero Section */
.hero {
    min-height: 85vh;
    display: flex;
    align-items: center;
    position: relative;
    background: var(--color-bg);
    border-bottom: 1px solid var(--color-border);
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 50%;
    height: 100%;
    background: radial-gradient(ellipse at top right, rgba(0, 212, 170, 0.05) 0%, transparent 60%);
    pointer-events: none;
}

.hero-content {
    position: relative;
    z-index: 1;
    animation: fadeInUp 0.8s ease-out;
}

.hero-intro {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
    flex-wrap: wrap;
}

.hero-image-wrapper {
    flex-shrink: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-sm);
    width: 150px;
}

.hero-image {
    width: 150px;
    height: 150px;
    border-radius: 50%;
    object-fit: cover;
    border: 4px solid var(--color-accent);
    box-shadow: 0 8px 24px rgba(0, 212, 170, 0.2);
    transition: transform var(--transition-smooth);
    display: block;
}

.hero-image:hover {
    transform: scale(1.05);
}

.hero-text {
    flex: 1;
    min-width: 300px;
}

.name-title {
    display: flex;
    flex-wrap: wrap;
    align-items: baseline;
    gap: 0.3em;
    margin-bottom: var(--spacing-md);
    line-height: 1;
}

.name-first {
    font-family: var(--font-display);
    font-size: clamp(2.5rem, 6vw, 5rem);
    font-weight: 400;
    color: var(--color-text-primary);
    letter-spacing: -0.02em;
    white-space: nowrap;
}

.name-last {
    font-family: var(--font-display);
    font-size: clamp(2.5rem, 6vw, 5rem);
    font-weight: 400;
    font-style: italic;
    color: var(--color-accent);
    letter-spacing: -0.02em;
    white-space: nowrap;
}

.tagline {
    font-size: clamp(1rem, 2vw, 1.25rem);
    color: var(--color-text-secondary);
    max-width: 100%;
    margin-bottom: var(--spacing-md);
    font-weight: 400;
    white-space: nowrap;
    overflow: visible;
}

.social-links {
    display: flex;
    gap: var(--spacing-sm);
    align-items: center;
    justify-content: center;
    margin-top: var(--spacing-xs);
    width: 100%;
}

.social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--color-surface-elevated);
    border: 1px solid var(--color-border);
    color: var(--color-text-secondary);
    transition: all var(--transition-fast);
    text-decoration: none;
}

.social-link:hover {
    color: var(--color-accent);
    border-color: var(--color-accent);
    background: rgba(0, 212, 170, 0.05);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 212, 170, 0.15);
}

.social-link svg {
    width: 20px;
    height: 20px;
}

.hero-meta {
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
    font-size: 0.95rem;
}

.hero-meta span {
    padding: 0.5rem 1rem;
    background: var(--color-surface-elevated);
    border: 1px solid var(--color-border);
    border-radius: 6px;
    color: var(--color-text-secondary);
    transition: all var(--transition-fast);
}

.availability {
    color: var(--color-accent) !important;
    border-color: var(--color-accent-dim) !important;
}

/* Navigation */
.nav-bar {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--color-border);
    transition: background var(--transition-fast);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
}

.nav-links {
    display: flex;
    gap: var(--spacing-md);
    padding: var(--spacing-sm) 0;
    overflow-x: auto;
}

.nav-link {
    color: var(--color-text-secondary);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.95rem;
    padding: 0.5rem 1rem;
    border-radius: 6px;
    transition: all var(--transition-fast);
    white-space: nowrap;
}

.nav-link:hover {
    color: var(--color-accent);
    background: var(--color-surface-elevated);
    transform: translateY(-1px);
}

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

/* Sections */
.section {
    padding: var(--spacing-xl) 0;
    border-bottom: 1px solid var(--color-border);
    position: relative;
    background: var(--color-bg);
}

.section-title {
    font-family: var(--font-display);
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 400;
    margin-bottom: var(--spacing-lg);
    color: var(--color-text-primary);
    position: relative;
    display: inline-block;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 0;
    width: 80px;
    height: 3px;
    background: linear-gradient(90deg, var(--color-accent), transparent);
    border-radius: 2px;
}

/* About Section */
.about-text {
    max-width: 900px;
}

.lead {
    font-size: 1.15rem;
    color: var(--color-text-primary);
    font-weight: 500;
    margin-bottom: var(--spacing-md);
    line-height: 1.8;
}

.about-text p {
    margin-bottom: var(--spacing-md);
    color: var(--color-text-secondary);
}

.stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.stat {
    display: flex;
    flex-direction: column;
    padding: var(--spacing-md);
    background: var(--color-surface-elevated);
    border: 1px solid var(--color-border);
    border-radius: 8px;
    transition: all var(--transition-smooth);
}

.stat:hover {
    transform: translateY(-4px);
    border-color: var(--color-accent-dim);
}

.stat-number {
    font-family: var(--font-display);
    font-size: 2.5rem;
    color: var(--color-accent);
    font-weight: 400;
    line-height: 1;
    margin-bottom: 0.5rem;
}

.stat-label {
    color: var(--color-text-secondary);
    font-size: 0.9rem;
    font-weight: 500;
}

/* Timeline */
.timeline {
    position: relative;
    padding-left: 2rem;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--color-border);
    opacity: 0.6;
}

.timeline-item {
    position: relative;
    margin-bottom: var(--spacing-lg);
    padding-left: var(--spacing-md);
}

.timeline-marker {
    position: absolute;
    left: -2.45rem;
    top: 0.5rem;
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--color-accent);
    border: 3px solid var(--color-bg);
    z-index: 1;
}

.timeline-content {
    background: var(--color-surface-elevated);
    border: 1px solid var(--color-border);
    border-radius: 12px;
    padding: var(--spacing-md);
    transition: all var(--transition-smooth);
    position: relative;
    overflow: hidden;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
}

.timeline-content::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: var(--color-accent);
    transform: scaleY(0);
    transition: transform var(--transition-smooth);
}

.timeline-content:hover {
    border-color: var(--color-accent-dim);
    transform: translateX(4px);
    box-shadow: 0 4px 12px rgba(0, 212, 170, 0.15);
}

.timeline-content:hover::before {
    transform: scaleY(1);
}

.job-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: var(--spacing-xs);
    flex-wrap: wrap;
    gap: var(--spacing-xs);
}

.job-title {
    font-size: 1.4rem;
    font-weight: 600;
    color: var(--color-text-primary);
}

.job-period {
    color: var(--color-accent);
    font-size: 0.9rem;
    font-weight: 500;
    padding: 0.25rem 0.75rem;
    background: rgba(0, 212, 170, 0.1);
    border-radius: 4px;
}

.company {
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-md);
    font-weight: 500;
}

/* Company Group Styles (for role transitions) */
.company-group {
    margin-bottom: var(--spacing-lg);
}

.company-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: var(--spacing-xs);
    flex-wrap: wrap;
    gap: var(--spacing-xs);
}

.company-name {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--color-text-primary);
    margin: 0;
}

.company-period {
    color: var(--color-accent);
    font-size: 0.9rem;
    font-weight: 500;
    padding: 0.25rem 0.75rem;
    background: rgba(0, 212, 170, 0.1);
    border-radius: 4px;
}

.company-location {
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-md);
    font-weight: 500;
    font-size: 0.95rem;
}

.role-item {
    margin-bottom: var(--spacing-md);
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--color-border);
}

.role-item:first-of-type {
    border-top: none;
    padding-top: 0;
}

.role-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: var(--spacing-sm);
    flex-wrap: wrap;
    gap: var(--spacing-xs);
}

.role-title {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--color-text-primary);
    margin: 0;
}

.role-period {
    color: var(--color-text-secondary);
    font-size: 0.85rem;
    font-weight: 500;
    padding: 0.2rem 0.6rem;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: 4px;
}

.achievements {
    list-style: none;
}

.achievements li {
    padding-left: 1.5rem;
    margin-bottom: 0.75rem;
    color: var(--color-text-secondary);
    position: relative;
    line-height: 1.6;
}

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

/* Skills Section */
.skills-layout {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
    max-width: 1100px;
    margin: 0 auto;
}

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

.skill-group-title {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-sm);
    font-family: var(--font-display);
    padding-bottom: var(--spacing-xs);
    border-bottom: 2px solid var(--color-accent);
    display: inline-block;
    width: fit-content;
}

.skill-list {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: var(--spacing-sm);
}

.skill-item {
    padding: 0.5rem 1rem;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: 6px;
    font-size: 0.9rem;
    color: var(--color-text-secondary);
    transition: all var(--transition-fast);
    font-weight: 400;
    display: inline-block;
}

.skill-item:hover {
    color: var(--color-text-primary);
    border-color: var(--color-accent-dim);
    background: rgba(0, 212, 170, 0.08);
}

/* Projects Section */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--spacing-md);
}

.project-card {
    background: var(--color-surface-elevated);
    border: 1px solid var(--color-border);
    border-radius: 12px;
    padding: var(--spacing-md);
    transition: all var(--transition-smooth);
    display: flex;
    flex-direction: column;
    position: relative;
    overflow: hidden;
}

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

.project-card:hover {
    border-color: var(--color-accent-dim);
    transform: translateY(-4px);
    box-shadow: 0 12px 32px rgba(0, 212, 170, 0.15);
}

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

.project-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: var(--spacing-sm);
    gap: var(--spacing-sm);
}

.project-title {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--color-text-primary);
}

.project-link {
    color: var(--color-accent);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
    white-space: nowrap;
    transition: all var(--transition-fast);
}

.project-link:hover {
    transform: translateX(4px);
}

.project-description {
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-md);
    flex-grow: 1;
}

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

.tag {
    padding: 0.4rem 0.8rem;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: 6px;
    font-size: 0.85rem;
    color: var(--color-text-secondary);
    transition: all var(--transition-fast);
}

.tag:hover {
    border-color: var(--color-accent-dim);
    color: var(--color-text-primary);
    background: rgba(0, 212, 170, 0.08);
}

/* Contact Section */
.contact-content {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.contact-intro {
    font-size: 1.1rem;
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-lg);
    line-height: 1.8;
}

.contact-methods {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-md);
}

.contact-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: var(--spacing-md);
    background: var(--color-surface-elevated);
    border: 1px solid var(--color-border);
    border-radius: 12px;
    text-decoration: none;
    transition: all var(--transition-smooth);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
}

.contact-card:hover {
    border-color: var(--color-accent);
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(0, 212, 170, 0.15);
}

.contact-icon {
    font-size: 2rem;
    margin-bottom: var(--spacing-sm);
}

.contact-label {
    font-size: 0.9rem;
    color: var(--color-text-secondary);
    margin-bottom: 0.25rem;
    font-weight: 500;
}

.contact-value {
    color: var(--color-accent);
    font-weight: 500;
}

/* Footer */
.footer {
    padding: var(--spacing-lg) 0;
    text-align: center;
    color: var(--color-text-secondary);
    border-top: 1px solid var(--color-border);
}

.footer-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-md);
}

.footer-social-links {
    display: flex;
    gap: var(--spacing-sm);
    align-items: center;
    justify-content: center;
}

.footer-social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--color-surface-elevated);
    border: 1px solid var(--color-border);
    color: var(--color-text-secondary);
    transition: all var(--transition-fast);
    text-decoration: none;
}

.footer-social-link:hover {
    color: var(--color-accent);
    border-color: var(--color-accent);
    background: rgba(0, 212, 170, 0.05);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 212, 170, 0.15);
}

.footer-social-link svg {
    width: 20px;
    height: 20px;
}

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

/* Responsive */
@media (max-width: 768px) {
    :root {
        --spacing-xl: 3rem;
        --spacing-lg: 2rem;
    }
    
    .timeline {
        padding-left: 1.5rem;
    }
    
    .timeline-marker {
        left: -2.2rem;
    }
    
    .nav-links {
        gap: var(--spacing-sm);
    }
    
    .projects-grid {
        grid-template-columns: 1fr;
    }
    
    .hero-intro {
        flex-direction: column;
        align-items: center;
        text-align: center;
        gap: var(--spacing-md);
    }
    
    .hero-image {
        width: 120px;
        height: 120px;
    }
    
    .hero-text {
        width: 100%;
    }
    
    .tagline {
        white-space: normal;
        font-size: 0.95rem;
    }
    
    .social-links {
        justify-content: center;
    }
    
    .name-title {
        gap: 0.2em;
    }
    
    .name-first,
    .name-last {
        font-size: clamp(2rem, 8vw, 4rem);
    }
    
    .skills-layout {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }
    
    .skill-list {
        gap: 0.4rem;
    }
    
    .skill-item {
        font-size: 0.85rem;
        padding: 0.45rem 0.85rem;
    }
    
    .skill-group-title {
        font-size: 1rem;
    }
    
    .tagline {
        white-space: normal;
        font-size: 0.95rem;
    }
}

/* Print styles */
@media print {
    .nav-bar,
    .grain-overlay {
        display: none;
    }
    
    .section {
        page-break-inside: avoid;
    }
}