/* D-ND Theme Variables */
:root {
    --primary-dark: #00a62a;
    --secondary-neon: #ff00ff;
    --bg-dark: #272727;
    --accent-yellow: #ffd900;
    --text-light: #f5f5f5;
    --card-bg: rgb(227 227 227 / 95%);
    --nav-bg: rgba(0, 0, 0, 0.564);
    ;
}

/* Base Theme Styles */
body {
    background: var(--bg-dark);
    color: var(--text-light);
    font-family: 'Arial', sans-serif;
    line-height: 1.6;
}

/* Navigation */
.navbar {
    background: var(--nav-bg);
    backdrop-filter: blur(10px);
    padding: 1rem 0;
}

.navbar-brand {
    color: var(--text-light);
    font-weight: bold;
    font-size: 1.5rem;
}

.nav-link {
    color: var(--text-light) !important;
    transition: color 0.3s ease;
}

.nav-link:hover {
    color: var(--accent-yellow) !important;
}

/* Hero Section */
.hero-section {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    overflow: hidden;
    background: var(--bg-dark);
}

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

.hero-content h1 {
    font-size: 4rem;
    margin-bottom: 1rem;
    color: var(--text-light);
}

.hero-description {
    font-size: 1.5rem;
    color: var(--text-light);
    max-width: 800px;
    margin: 0 auto;
}

/* Mathematical Content */
.math-content {
    background: var(--card-bg);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: 8px;
    padding: 2rem;
    margin: 1.5rem 0;
    transition: transform 0.3s ease;
}

.math-content:hover {
    transform: translateY(-5px);
}

.formula-block {
    background: rgb(0 0 0 / 5%);
    padding: 1.5rem;
    border-radius: 4px;
    margin: 1rem 0;
    overflow-x: auto;
}

/* Section Styles */
.section-title {
    color: var(--text-light);
    text-align: center;
    margin-bottom: 3rem;
    font-size: 2.5rem;
}

section {
    padding: 4rem 0;
}

/* Publications List */
.publications-list {
    list-style: none;
    padding: 0;
}

.publications-list li {
    margin-bottom: 2rem;
}

.publications-list h3 {
    color: var(--bg-dark);
    margin-bottom: 1rem;
}

/* Particle Canvas */
#particleCanvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
}

/* Responsive Design */
@media (max-width: 768px) {
    .hero-content h1 {
        font-size: 2.5rem;
    }
    
    .hero-description {
        font-size: 1.2rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .math-content {
        padding: 1.5rem;
    }
}