:root {
    --star-background: #070508;
    --text: var(--star-background);
    --background: #f8f9ff;
    --primary: #1c0d6e;
    --secondary: #EE4266;
    --header-font: "Rubik Glitch", system-ui;
    --primary-font: "Jersey 15", sans-serif;
}

body {
    background-color: transparent;
    font-family: var(--primary-font);
    font-size: 1.5rem;
    color: var(--text);
    margin: 0;
    padding: 0 20px;
}

h1 {
    font-family: var(--header-font);
    font-size: 3rem;
    background-image: repeating-linear-gradient(
        120deg,
        black 0px,
    rgb(0, 100, 0) 15px,
    black 30px,
    black 50px);
    background-size: 288px 100%;
    color: transparent;
    background-clip: text;
    animation: green-background 8s linear infinite;
}

@keyframes green-background {
    0% {background-position: 0 0;}
    100% {background-position: -288px 0;}
}

br {
    margin: 20px 0;
}

#background {
    position: fixed;
    top: 0;
    left: 0;
    z-index: -1;
    width: 100vw;
    height: 100vh;
    display: block;
}

#main {
    background-color: var(--background);
    padding: 30px;
    max-width: 1000px;
    min-height: 500px;
    margin: 50px auto;
    box-shadow: inset 0 0 5px 10px var(--star-background);
}

/* --- Buttons --- */

.btn {
    background-color: black;
    padding: 10px 20px;
    border-radius: 5px;
    border: none;
    font-size: 1.5rem;
    font-family: var(--primary-font);
    cursor: pointer;
    text-decoration: none;
    transition: all 0.3s;
}

.btn-primary:hover {
    box-shadow: inset 100px black;
    background-color: color-mix(in srgb, var(--primary) 70%, black 30%);
}

.btn-secondary:hover {
    box-shadow: inset 100px black;
    background-color: color-mix(in srgb, var(--secondary) 70%, black 30%);
}

.btn-primary {
    background-color: var(--primary);
    color: white;
}

.btn-secondary {
    background-color: var(--secondary);
    color: var(--text);
}

/* --- Animations --- */

.starry {
    background-color: var(--star-background);
}

.blink {
    animation: blink 1s step-end infinite;
}

@keyframes blink {
    0% {visibility: visible;}
    50% {visibility: hidden;}
}