:root {
    --color1: #00adb5;
    --color2: #eeeeee;
    --color3: #222831;
    --color4: #f8f8f8;
    --color5: #393e46;
}

h1, h2, h3, h4, .font-black {
    font-family: 'Roboto Mono', monospace;
    letter-spacing: -1px;
}
body {
    font-family: Arial, Helvetica, sans-serif;
}

.transition-colors {
    transition-property: color, background-color, border-color;
    transition-duration: 400ms;
}
.shadow-lg {
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
}

.btn-primary {
    background-color: var(--color1);
    color: var(--color3);
    font-weight: 700;
    padding: 1rem 2.5rem;
    border-radius: 4px;
    transition: background-color 0.3s;
    border: 2px solid var(--color1);
}
.btn-primary:hover {
    background-color: var(--color4);
    color: var(--color1);
    border-color: var(--color1);
}

.section-inverted {
    background-color: var(--color4);
    color: var(--color5);
}

.deco-line-left {
    position: relative;
}
.deco-line-left::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 3px;
    height: 80%;
    background-color: var(--color1);
}