:root {
    --deep-black: #0F0F0F; /* [cite: 12] */
    --dark-grey: #1A1A1A;  /* [cite: 13] */
    --signal-yellow: #FFD000; /* [cite: 15] */
    --electric-blue: #00B3FF;  /* [cite: 18] */
}

body {
    background-color: var(--deep-black);
    color: white;
    font-family: 'Inter', sans-serif; /* Supporting font [cite: 36] */
    margin: 0;
    line-height: 1.6;
}

h1, h2, h3 {
    font-family: 'Space Grotesk', sans-serif; /* Display font [cite: 25] */
    text-transform: uppercase;
    letter-spacing: 2px;
}

/* Hero Section [cite: 4] */
.hero {
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    background: radial-gradient(circle, #1a1a1a 0%, #0f0f0f 100%); /* Subtle glow [cite: 50] */
}

.hero h1 {
    font-size: 4rem;
    margin-bottom: 1rem;
}

/* Yellow Highlight CTA [cite: 16] */
.btn-primary {
    background-color: var(--signal-yellow);
    color: black;
    padding: 1rem 2.5rem;
    text-decoration: none;
    font-weight: bold;
    transition: 0.3s ease; /* Smooth hover [cite: 61] */
}

.btn-primary:hover {
    box-shadow: 0 0 20px var(--signal-yellow); /* Light hover glow [cite: 61] */
}

/* Project Grid [cite: 7, 53] */
.project-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    padding: 4rem;
}

.project-card {
    background: var(--dark-grey);
    border: 1px solid #333;
    transition: transform 0.3s ease; /* Slight lift effect [cite: 62] */
}

.project-card:hover {
    transform: translateY(-10px); /* [cite: 62] */
}