/* Variables & Reset */
:root {
    --bg-color: #0a0a0c;
    --text-primary: #ffffff;
    --text-secondary: #a0a0a0;
    --accent-primary: #3b82f6; /* Electric Blue */
    --accent-secondary: #8b5cf6; /* Violet */
    --glass-bg: rgba(255, 255, 255, 0.05);
    --glass-border: rgba(255, 255, 255, 0.1);
    --font-heading: 'Outfit', sans-serif;
    --font-body: 'Inter', sans-serif;
}

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

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

/* Typography */
h1, h2, h3 {
    font-family: var(--font-heading);
    font-weight: 700;
}

h1 {
    font-size: 3.5rem;
    line-height: 1.1;
    margin-bottom: 1.5rem;
}

h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

p.lead {
    font-size: 1.25rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin-bottom: 2rem;
}

.gradient-text {
    background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* Utilities */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

.btn-primary {
    background: var(--text-primary);
    color: var(--bg-color);
    padding: 0.8rem 1.5rem;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    transition: transform 0.2s;
    display: inline-block;
}

.btn-primary:hover {
    transform: translateY(-2px);
}

.btn-secondary {
    border: 1px solid var(--glass-border);
    color: var(--text-primary);
    padding: 0.8rem 1.5rem;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    margin-left: 1rem;
    transition: background 0.2s;
}

.btn-secondary:hover {
    background: var(--glass-bg);
}

/* Navigation */
.navbar {
    padding: 1.5rem 0;
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--glass-border);
}

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

.logo {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    text-decoration: none;
    color: var(--text-primary);
}

.logo .dot {
    color: var(--accent-primary);
}

.nav-links a {
    color: var(--text-secondary);
    text-decoration: none;
    margin-left: 2rem;
    font-size: 0.9rem;
    transition: color 0.2s;
}

.nav-links a.btn-primary {
    color: var(--bg-color);
}

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

/* Hero Section */
.hero {
    height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    padding-top: 80px;
}

.hero-bg-grid {
    position: absolute;
    top: 0;
    right: 0;
    width: 50%;
    height: 100%;
    background-image: radial-gradient(var(--glass-border) 1px, transparent 1px);
    background-size: 40px 40px;
    opacity: 0.3;
    z-index: -1;
    mask-image: linear-gradient(to right, transparent, black);
}

.badge {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    padding: 0.5rem 1rem;
    border-radius: 50px;
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 1.5rem;
    display: inline-block;
    color: var(--accent-primary);
}

/* Stats Section */
.stats-section {
    padding: 5rem 0;
}

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

.glass {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    backdrop-filter: blur(10px);
    border-radius: 16px;
    padding: 2rem;
}

.stat-card {
    text-align: center;
    transition: transform 0.3s;
}

.stat-card:hover {
    transform: translateY(-5px);
    border-color: var(--accent-primary);
}

.stat-card h3 {
    font-size: 3rem;
    margin: 1rem 0 0.5rem;
    background: linear-gradient(to bottom, #fff, #aaa);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.stat-card .subtext {
    font-size: 0.9rem;
    color: var(--text-secondary);
    opacity: 0.7;
}

.icon-accent {
    color: var(--accent-primary);
    width: 32px;
    height: 32px;
}

/* About Section */
.about-section {
    padding: 5rem 0;
}

.split-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.code-block {
    font-family: 'Courier New', monospace;
    font-size: 0.9rem;
    color: var(--accent-primary);
}

/* Research Section */
.research-section {
    padding: 5rem 0;
}

.project-card {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 2rem;
}

.project-info h3 {
    margin: 0.5rem 0;
}

.tag {
    background: var(--accent-primary);
    color: var(--bg-color);
    padding: 0.2rem 0.6rem;
    border-radius: 4px;
    font-size: 0.7rem;
    font-weight: 700;
}

.method-list {
    list-style: none;
    margin-top: 1rem;
}

.method-list li {
    display: inline-flex;
    align-items: center;
    margin-right: 1.5rem;
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.method-list li i {
    width: 16px;
    margin-right: 0.5rem;
    color: var(--accent-secondary);
}

/* Footer */
.footer {
    padding: 4rem 0;
    border-top: 1px solid var(--glass-border);
    margin-top: 5rem;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
}

.social-links a {
    color: var(--text-secondary);
    margin-left: 1rem;
    transition: color 0.2s;
}

.social-links a:hover {
    color: var(--text-primary);
}

.copyright {
    text-align: center;
    font-size: 0.8rem;
    color: var(--text-secondary);
    opacity: 0.5;
}

/* Responsive */
@media (max-width: 768px) {
    h1 {
        font-size: 2.5rem;
    }
    
    .split-layout {
        grid-template-columns: 1fr;
    }
    
    .project-card {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .project-action {
        margin-top: 1.5rem;
    }
    
    .nav-links {
        display: none; /* Mobile menu needed for full prod, sticking to simple for now */
    }
}