:root {
    /* Color System */
    --bg-primary: #0a0a0f;
    --bg-secondary: #111118;
    --bg-tertiary: #1a1a24;
    --bg-card: #1e1e2e;
    --bg-glass: rgba(255, 255, 255, 0.05);

    /* Neon Colors */
    --neon-cyan: #00f5ff;
    --neon-blue: #0080ff;
    --neon-green: #00cc66;
    --neon-teal: #00cc88;
    --neon-electric: #00ddff;

    /* Text Colors */
    --text-primary: #ffffff;
    --text-secondary: #a0a0a0;
    --text-muted: #6b6b6b;
    --text-accent: var(--neon-cyan);

    /* Gradients */
    --gradient-primary: linear-gradient(135deg, var(--neon-cyan) 0%, var(--neon-green) 100%);
    --gradient-secondary: linear-gradient(135deg, var(--neon-blue) 0%, var(--neon-teal) 100%);
    --gradient-glow: linear-gradient(45deg, transparent, rgba(0, 245, 255, 0.1), transparent);

    /* Spacing */
    --section-padding: 6rem 0;
    --container-padding: 0 2rem;
    --max-width: 1200px;

    /* Effects */
    --border-radius: 12px;
    --glow-size: 20px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

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

/* Background Animation */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background:
        radial-gradient(circle at 20% 80%, rgba(0, 245, 255, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(0, 204, 102, 0.08) 0%, transparent 50%),
        radial-gradient(circle at 40% 40%, rgba(0, 128, 255, 0.05) 0%, transparent 50%);
    z-index: -1;
    animation: backgroundShift 20s ease-in-out infinite;
}

@keyframes backgroundShift {

    0%,
    100% {
        opacity: 1;
    }

    50% {
        opacity: 0.8;
    }
}

/* Scrollbar Styling */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-secondary);
}

::-webkit-scrollbar-thumb {
    background: var(--gradient-primary);
    border-radius: 4px;
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(10, 10, 15, 0.95);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(0, 245, 255, 0.2);
    z-index: 1000;
    transition: var(--transition);
}

.nav-container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-family: 'JetBrains Mono', monospace;
    font-size: 1.5rem;
    font-weight: 600;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-decoration: none;
}

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

.nav-links a {
    color: var(--text-primary);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
    position: relative;
    padding: 0.5rem 1rem;
}

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

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    transition: var(--transition);
}

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

/* Container */
.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: var(--container-padding);
}

/* Section Styling */
.section {
    padding: var(--section-padding);
    position: relative;
}

.section-title {
    font-size: 3rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 3rem;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    position: relative;
}

.hero-content h1 {
    font-size: 4rem;
    font-weight: 700;
    margin-bottom: 1rem;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-content .subtitle {
    font-size: 1.5rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
}

.hero-content .description {
    font-size: 1.1rem;
    color: var(--text-muted);
    max-width: 600px;
    margin: 0 auto 3rem;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 1rem 2rem;
    font-size: 1rem;
    font-weight: 600;
    text-decoration: none;
    border-radius: var(--border-radius);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: var(--gradient-primary);
    color: var(--text-primary);
}

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

.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(0, 245, 255, 0.3);
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: var(--gradient-glow);
    transition: var(--transition);
}

.btn:hover::before {
    left: 100%;
}

/* Research Section */
.research-grid {
    display: grid;
    gap: 2rem;
    max-width: 900px;
    margin: 0 auto;
}

.research-paper {
    padding: 2.5rem;
    position: relative;
}

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

.paper-type {
    background: var(--gradient-primary);
    color: var(--bg-primary);
    padding: 0.4rem 1rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
}

.paper-year {
    color: var(--neon-cyan);
    font-family: 'JetBrains Mono', monospace;
    font-weight: 600;
    font-size: 1.1rem;
}

.paper-title {
    color: var(--text-primary);
    font-size: 1.4rem;
    font-weight: 600;
    line-height: 1.3;
    margin-bottom: 0.8rem;
}

.paper-authors {
    color: var(--text-secondary);
    margin-bottom: 1rem;
    font-size: 1rem;
}

.paper-authors strong {
    color: var(--neon-cyan);
}

.paper-venues {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 1.2rem;
}

.venue-tag {
    padding: 0.3rem 0.8rem;
    border-radius: 15px;
    font-size: 0.8rem;
    font-weight: 500;
    text-transform: uppercase;
}

.venue-tag.conference {
    background: rgba(0, 204, 102, 0.15);
    color: var(--neon-green);
    border: 1px solid rgba(0, 204, 102, 0.3);
}

.venue-tag.journal {
    background: rgba(0, 245, 255, 0.15);
    color: var(--neon-cyan);
    border: 1px solid rgba(0, 245, 255, 0.3);
}

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

.paper-highlights {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 8px;
    padding: 1.2rem;
    margin-bottom: 1.5rem;
}

.highlight-item {
    display: flex;
    margin-bottom: 0.5rem;
    font-size: 0.9rem;
}

.highlight-item:last-child {
    margin-bottom: 0;
}

.highlight-label {
    color: var(--neon-teal);
    font-weight: 600;
    min-width: 80px;
    margin-right: 0.5rem;
}

.highlight-value {
    color: var(--text-secondary);
}

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

.paper-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.6rem 1.2rem;
    text-decoration: none;
    border-radius: 8px;
    font-size: 0.9rem;
    font-weight: 500;
    transition: var(--transition);
    border: 1px solid;
}

.journal-link {
    color: var(--neon-cyan);
    border-color: rgba(0, 245, 255, 0.3);
    background: rgba(0, 245, 255, 0.05);
}

.journal-link:hover {
    background: rgba(0, 245, 255, 0.15);
    transform: translateY(-2px);
}

.arxiv-link {
    color: var(--neon-green);
    border-color: rgba(0, 204, 102, 0.3);
    background: rgba(0, 204, 102, 0.05);
}

.arxiv-link:hover {
    background: rgba(0, 204, 102, 0.15);
    transform: translateY(-2px);
}

.conference-link {
    color: var(--neon-teal);
    border-color: rgba(0, 204, 136, 0.3);
    background: rgba(0, 204, 136, 0.05);
}

.conference-link:hover {
    background: rgba(0, 204, 136, 0.15);
    transform: translateY(-2px);
}

.coming-soon-paper {
    opacity: 0.6;
    border-style: dashed;
}

.paper-description {
    color: var(--text-muted);
    font-style: italic;
}

/* Resume Section */
.resume-content {
    display: flex;
    justify-content: center;
    max-width: 600px;
    margin: 0 auto;
}

.resume-card {
    text-align: center;
    padding: 3rem;
    width: 100%;
}

.resume-icon {
    color: var(--neon-cyan);
    margin: 0 auto 1.5rem;
    display: flex;
    justify-content: center;
    filter: drop-shadow(0 0 10px currentColor);
}

.resume-card h3 {
    font-size: 1.8rem;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.resume-description {
    color: var(--text-secondary);
    font-size: 1.1rem;
    line-height: 1.6;
    margin-bottom: 2rem;
}

.resume-highlights {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 0.5rem;
    margin-bottom: 2.5rem;
}

.highlight-tag {
    background: rgba(0, 245, 255, 0.1);
    color: var(--neon-cyan);
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.9rem;
    border: 1px solid rgba(0, 245, 255, 0.3);
    font-weight: 500;
}

.download-btn {
    font-size: 1.1rem;
    padding: 1.25rem 2.5rem;
    margin-top: 1rem;
}

.download-btn svg {
    margin-right: 0.5rem;
}

/* Social Links */
.social-links {
    display: flex;
    gap: 1rem;
    justify-content: center;
    margin: 2rem 0 3rem;
}

.social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 50px;
    height: 50px;
    border: 2px solid rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    background: var(--bg-card);
    color: var(--text-primary);
    text-decoration: none;
    transition: var(--transition);
    backdrop-filter: blur(10px);
}

.social-link:hover {
    border-color: var(--neon-cyan);
    box-shadow: 0 0 20px rgba(0, 245, 255, 0.3);
    transform: translateY(-2px);
}

.social-link svg {
    width: 24px;
    height: 24px;
}

.card {
    background: var(--bg-card);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--border-radius);
    padding: 2rem;
    backdrop-filter: blur(10px);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: var(--gradient-primary);
    transform: scaleX(0);
    transition: var(--transition);
}

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

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
    border-color: rgba(0, 245, 255, 0.3);
}

/* Grid Layouts */
.grid {
    display: grid;
    gap: 2rem;
}

.grid-2 {
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

.grid-3 {
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

/* Glowing Text Effect */
.glow-text {
    text-shadow: 0 0 10px currentColor;
    animation: pulse 2s ease-in-out infinite alternate;
}

@keyframes pulse {
    from {
        text-shadow: 0 0 10px currentColor;
    }

    to {
        text-shadow: 0 0 20px currentColor, 0 0 30px currentColor;
    }
}

/* Coming Soon Sections */
.coming-soon {
    text-align: center;
    padding: 4rem 0;
    opacity: 0.7;
}

.coming-soon h2 {
    color: var(--text-secondary);
    margin-bottom: 1rem;
}

.coming-soon p {
    color: var(--text-muted);
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-links {
        display: none;
        /* We'll add mobile menu later */
    }

    .hero-content h1 {
        font-size: 2.5rem;
    }

    .hero-content .subtitle {
        font-size: 1.2rem;
    }

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

    .container {
        padding: 0 1rem;
    }
}

/* Smooth Scrolling */
html {
    scroll-behavior: smooth;
}

/* Hide scrollbar for cleaner look */
body {
    scrollbar-width: thin;
    scrollbar-color: var(--neon-cyan) var(--bg-secondary);
}