:root {
    --color-bg: #0a0a0f;
    --color-surface: #1a1a24;
    --color-surface-light: #252535;
    --color-text: #e8e8f0;
    --color-text-dim: #9898b0;
    --color-accent: #00d9ff;
    --color-accent-alt: #ff6b35;
    --color-border: #2a2a3a;
    
    --font-display: 'Krona One', sans-serif;
    --font-body: 'Work Sans', sans-serif;
    
    --shadow-glow: 0 0 30px rgba(0, 217, 255, 0.15);
    --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.4);
}

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

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

.grain {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    pointer-events: none;
    opacity: 0.03;
    z-index: 1000;
    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='0.9' 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 2rem;
}

/* Navbar */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 999;
    background: rgba(10, 10, 15, 0.85);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--color-border);
    padding: 1rem 0;
}

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

.nav-logo {
    font-family: var(--font-display);
    font-size: 1.1rem;
    color: var(--color-accent);
    letter-spacing: 0.05em;
}

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

.nav-links a {
    color: var(--color-text-dim);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
    transition: color 0.2s;
    letter-spacing: 0.03em;
}

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

/* Hero Section */
.hero {
    min-height: 100vh;
    padding-top: 5rem;
    display: flex;
    align-items: center;
    position: relative;
    background: 
        radial-gradient(circle at 20% 30%, rgba(0, 217, 255, 0.08) 0%, transparent 50%),
        radial-gradient(circle at 80% 70%, rgba(255, 107, 53, 0.06) 0%, transparent 50%);
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, 
        transparent 0%, 
        var(--color-accent) 50%, 
        transparent 100%);
    opacity: 0.5;
}

.hero-content {
    animation: fadeInUp 1.2s cubic-bezier(0.16, 1, 0.3, 1);
}

.name {
    font-family: var(--font-display);
    font-size: clamp(2rem, 6vw, 4.5rem);
    line-height: 1.1;
    margin-bottom: 1.5rem;
    background: linear-gradient(135deg, var(--color-text) 0%, var(--color-accent) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: -0.02em;
}

.tagline {
    font-size: clamp(1.1rem, 2.5vw, 1.5rem);
    color: var(--color-text-dim);
    max-width: 700px;
    margin-bottom: 2rem;
    font-weight: 300;
}

.hero-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 2rem;
    font-size: 0.95rem;
    color: var(--color-text-dim);
}

.hero-meta span {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

/* Section Titles */
.section-title {
    font-family: var(--font-display);
    font-size: clamp(2rem, 4vw, 3rem);
    margin-bottom: 3rem;
    position: relative;
    display: inline-block;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 0;
    width: 60px;
    height: 3px;
    background: linear-gradient(90deg, var(--color-accent), var(--color-accent-alt));
}

/* Experience Timeline */
.experience {
    padding: 8rem 0;
    background: linear-gradient(180deg, var(--color-bg) 0%, var(--color-surface) 100%);
}

.timeline {
    margin-top: 4rem;
    position: relative;
    padding-left: 3rem;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(180deg, 
        var(--color-accent) 0%, 
        var(--color-accent-alt) 100%);
}

.timeline-item {
    position: relative;
    margin-bottom: 3rem;
    animation: slideInLeft 0.6s cubic-bezier(0.16, 1, 0.3, 1);
    animation-fill-mode: both;
}

.timeline-item:nth-child(1) { animation-delay: 0.1s; }
.timeline-item:nth-child(2) { animation-delay: 0.2s; }
.timeline-item:nth-child(3) { animation-delay: 0.3s; }
.timeline-item:nth-child(4) { animation-delay: 0.4s; }
.timeline-item:nth-child(5) { animation-delay: 0.5s; }

.timeline-marker {
    position: absolute;
    left: -3.5rem;
    top: 8px;
    width: 12px;
    height: 12px;
    background: var(--color-accent);
    border-radius: 50%;
    box-shadow: 0 0 0 4px var(--color-bg), 0 0 0 6px var(--color-surface);
}

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

.company {
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: 0.25rem;
}

.period {
    color: var(--color-text-dim);
    font-size: 0.9rem;
    margin-bottom: 1rem;
}

.description {
    color: var(--color-text-dim);
    line-height: 1.7;
}

/* Skills Grid */
.skills {
    padding: 8rem 0;
    background: var(--color-surface);
}

.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.skill-category {
    background: var(--color-surface-light);
    padding: 2rem;
    border-radius: 12px;
    border: 1px solid var(--color-border);
    transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.skill-category:hover {
    transform: translateY(-4px);
    border-color: var(--color-accent);
    box-shadow: var(--shadow-glow);
}

.skill-category h3 {
    color: var(--color-accent);
    margin-bottom: 1.5rem;
    font-size: 1.2rem;
    font-weight: 600;
}

.skill-category ul {
    list-style: none;
}

.skill-category li {
    padding: 0.5rem 0;
    color: var(--color-text-dim);
    position: relative;
    padding-left: 1.5rem;
}

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

/* Projects Grid */
.projects {
    padding: 8rem 0;
    background: var(--color-bg);
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.project-card {
    background: var(--color-surface-light);
    padding: 2.5rem;
    border-radius: 16px;
    border: 1px solid var(--color-border);
    transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    position: relative;
    overflow: hidden;
}

.project-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, var(--color-accent), var(--color-accent-alt));
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

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

.project-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-card);
    border-color: var(--color-accent);
}

.project-icon {
    font-size: 3rem;
    margin-bottom: 1.5rem;
    display: inline-block;
    filter: grayscale(0.3);
}

.project-card h3 {
    font-size: 1.4rem;
    margin-bottom: 1rem;
    color: var(--color-text);
}

/* Project Gallery */
.project-gallery {
    margin: 1rem 0;
    border-radius: 8px;
    overflow: hidden;
    background: var(--color-bg);
    border: 1px solid var(--color-border);
}

.gallery-img {
    width: 100%;
    height: 220px;
    object-fit: contain;
    background: #fff;
    display: block;
    cursor: zoom-in;
    transition: opacity 0.2s;
}

.gallery-img:hover {
    opacity: 0.85;
}

.gallery-controls {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    padding: 0.5rem;
    background: var(--color-surface);
}

.gallery-btn {
    background: var(--color-surface-light);
    border: 1px solid var(--color-border);
    color: var(--color-text);
    width: 32px;
    height: 32px;
    border-radius: 50%;
    cursor: pointer;
    font-size: 1.2rem;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s;
}

.gallery-btn:hover {
    background: var(--color-accent);
    color: var(--color-bg);
    border-color: var(--color-accent);
}

.gallery-counter {
    color: var(--color-text-dim);
    font-size: 0.85rem;
    min-width: 50px;
    text-align: center;
}

.gallery-caption {
    font-size: 0.78rem;
    color: var(--color-text-dim);
    text-align: center;
    padding: 0.3rem 0.5rem 0.5rem;
    background: var(--color-surface);
    margin: 0;
}

.project-company {
    color: var(--color-accent);
    font-size: 0.88rem;
    font-weight: 600;
    margin-bottom: 0.75rem !important;
}

.project-card p {
    color: var(--color-text-dim);
    line-height: 1.7;
    margin-bottom: 1.5rem;
}

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

.project-tags span {
    background: var(--color-bg);
    color: var(--color-accent);
    padding: 0.4rem 1rem;
    border-radius: 20px;
    font-size: 0.85rem;
    border: 1px solid var(--color-border);
}

/* Publications */
.publications {
    padding: 8rem 0;
    background: var(--color-surface);
}

.pub-list {
    margin-top: 3rem;
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.pub-card {
    background: var(--color-surface-light);
    padding: 2.5rem;
    border-radius: 16px;
    border: 1px solid var(--color-border);
    border-left: 4px solid var(--color-accent);
    transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.pub-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-card);
    border-color: var(--color-accent);
}

.pub-type {
    display: inline-block;
    background: var(--color-accent);
    color: var(--color-bg);
    font-size: 0.75rem;
    font-weight: 700;
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    margin-bottom: 1rem;
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

.pub-card h3 {
    font-size: 1.3rem;
    color: var(--color-text);
    margin-bottom: 0.5rem;
    line-height: 1.4;
}

.pub-authors {
    color: var(--color-accent);
    font-size: 0.95rem;
    font-weight: 500;
    margin-bottom: 0.25rem;
}

.pub-venue {
    color: var(--color-text-dim);
    font-size: 0.9rem;
    margin-bottom: 1rem;
}

.pub-desc {
    color: var(--color-text-dim);
    line-height: 1.7;
    margin-bottom: 1.5rem;
}

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

.pub-link {
    display: inline-block;
    margin-top: 1rem;
    color: var(--color-accent);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 600;
    transition: opacity 0.2s;
}

.pub-link:hover {
    opacity: 0.7;
}

.pub-tags span {
    background: var(--color-bg);
    color: var(--color-accent);
    padding: 0.4rem 1rem;
    border-radius: 20px;
    font-size: 0.85rem;
    border: 1px solid var(--color-border);
}

/* Status / Contribution inline rows inside pub-card */
.pub-status,
.pub-contrib {
    color: var(--color-text-dim);
    font-size: 0.9rem;
    line-height: 1.65;
    margin-bottom: 0.6rem;
}

.pub-meta-label {
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--color-accent-alt);
    margin-right: 0.5rem;
}

/* Affiliations using projects-grid */
.affiliations {
    padding: 8rem 0;
    background: var(--color-surface);
}

/* Awards using projects-grid */
.awards {
    padding: 8rem 0;
    background: var(--color-bg);
}

/* Duties/Achievements label */
.exp-label {
    font-size: 0.78rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--color-accent-alt);
    margin-top: 0.8rem;
    margin-bottom: 0.3rem;
}

/* Other Research */
.other-research {
    padding: 8rem 0;
    background: var(--color-surface);
}

/* Affiliations */
.affiliations {
    padding: 8rem 0;
    background: var(--color-bg);
}

.affiliations-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.affil-card {
    background: var(--color-surface-light);
    padding: 2rem;
    border-radius: 16px;
    border: 1px solid var(--color-border);
    display: flex;
    gap: 1.5rem;
    align-items: flex-start;
    transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.affil-card:hover {
    transform: translateY(-4px);
    border-color: var(--color-accent);
    box-shadow: var(--shadow-glow);
}

.affil-icon {
    font-size: 2rem;
    flex-shrink: 0;
}

.affil-body h3 {
    font-size: 1.1rem;
    color: var(--color-text);
    margin-bottom: 0.3rem;
}

.affil-role {
    color: var(--color-accent);
    font-size: 0.88rem;
    font-weight: 600;
    margin-bottom: 0.2rem;
}

.affil-period {
    color: var(--color-accent-alt);
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 0.6rem;
}

.affil-desc {
    color: var(--color-text-dim);
    font-size: 0.9rem;
    line-height: 1.6;
}

/* Awards Section */
.awards {
    padding: 8rem 0;
    background: var(--color-bg);
}

.awards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.award-card {
    background: var(--color-surface-light);
    padding: 2rem;
    border-radius: 16px;
    border: 1px solid var(--color-border);
    display: flex;
    gap: 1.5rem;
    align-items: flex-start;
    transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.award-card:hover {
    transform: translateY(-4px);
    border-color: var(--color-accent-alt);
    box-shadow: 0 0 30px rgba(255, 107, 53, 0.1);
}

.award-icon {
    font-size: 2.2rem;
    flex-shrink: 0;
}

.award-body h3 {
    font-size: 1.1rem;
    color: var(--color-text);
    margin-bottom: 0.4rem;
    line-height: 1.4;
}

.award-org {
    color: var(--color-accent);
    font-size: 0.88rem;
    font-weight: 600;
    margin-bottom: 0.3rem;
}

.award-year {
    color: var(--color-accent-alt);
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 0.6rem;
}

.award-desc {
    color: var(--color-text-dim);
    font-size: 0.9rem;
    line-height: 1.6;
}

/* Education Grid */
.education {
    padding: 8rem 0;
    background: var(--color-bg);
}

.education-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.edu-card {
    background: var(--color-surface-light);
    padding: 2rem;
    border-radius: 12px;
    border: 1px solid var(--color-border);
    transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

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

.edu-card h3 {
    color: var(--color-accent);
    margin-bottom: 0.5rem;
    font-size: 1.3rem;
}

.institution {
    color: var(--color-text);
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.year {
    color: var(--color-text-dim);
    font-size: 0.9rem;
    margin-bottom: 0.5rem;
}

.honors {
    color: var(--color-accent-alt);
    font-size: 0.95rem;
    font-weight: 500;
    margin-top: 0.5rem;
}

/* Contact Section */
.contact {
    padding: 8rem 0 4rem;
    background: var(--color-bg);
    text-align: center;
}

.contact h2 {
    font-family: var(--font-display);
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.contact p {
    color: var(--color-text-dim);
    margin-bottom: 2rem;
    font-size: 1.1rem;
}

.contact-links {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
    flex-wrap: wrap;
    margin-bottom: 4rem;
}

.contact-btn {
    padding: 1rem 2.5rem;
    background: var(--color-surface-light);
    color: var(--color-text);
    text-decoration: none;
    border-radius: 8px;
    border: 1px solid var(--color-border);
    font-weight: 500;
    transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.contact-btn:hover {
    background: var(--color-accent);
    color: var(--color-bg);
    border-color: var(--color-accent);
    transform: translateY(-2px);
    box-shadow: var(--shadow-glow);
}

.footer-note {
    color: var(--color-text-dim);
    font-size: 0.9rem;
    padding-top: 2rem;
    border-top: 1px solid var(--color-border);
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    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) {
    .nav-links {
        gap: 1rem;
        font-size: 0.8rem;
    }

    .container {
        padding: 0 1.5rem;
    }
    
    .timeline {
        padding-left: 2rem;
    }
    
    .timeline-marker {
        left: -2.3rem;
    }
    
    .hero-meta {
        flex-direction: column;
        gap: 0.8rem;
    }
    
    .projects-grid,
    .skills-grid,
    .education-grid {
        grid-template-columns: 1fr;
    }
    
    .contact-links {
        flex-direction: column;
        align-items: center;
    }
}