:root {
    --primary-blue: #007bff;
    --dark-surface: #0d0d0d;
    --border-color: #262626;
}

body {
    background-color: var(--dark-surface);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

.fw-black { font-weight: 900; }
.tracking-tighter { letter-spacing: -0.05em; }

.hero-bg {
    background: radial-gradient(circle at 50% 50%, #111 0%, #000 100%);
}

.card {
    transition: transform 0.3s ease, border-color 0.3s ease;
    border-radius: 12px;
}

.hover-lift:hover {
    transform: translateY(-8px);
    border-color: var(--primary-blue) !important;
}

.shadow-primary {
    box-shadow: 0 10px 30px rgba(0, 123, 255, 0.1);
}

.btn-primary {
    background-color: var(--primary-blue);
    border: none;
    font-weight: 600;
}

.font-monospace {
    font-family: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
}