:root {
    --primary-color: #262d79;
    --secondary-color: #03045e;
    --highlight-color: #475492;
}

::-webkit-scrollbar {
    width: 12px;
}

::-webkit-scrollbar-track {
    background: var(--highlight-color);
    border-radius: 12px;
}

::-webkit-scrollbar-thumb {
    background: var(--secondary-color);
    border-radius: 12px;
    border: 2px solid var(--highlight-color);
}

@supports not selector(::-webkit-scrollbar) {
    body {
        scrollbar-color: var(--secondary-color) var(--primary-color);
    }
}

* {
    box-sizing: border-box;
}

html {
    font-size: 16px;
    letter-spacing: 1px;
}

body {
    margin: 0;
    font-family: 'Orbitron';
    color: #ffffff;
    background-color: var(--primary-color);
}

h3,
h2 {
    text-align: center;
    margin-block-start: 0;
    margin-block-end: 0;
}

p {
    margin-block-start: 0;
    margin-block-end: 0;
}

a {
    text-decoration: none;
    color: #ffffff;
}

a:hover {
    text-decoration: underline;
}

img {
    height: 4rem;
}

hr {
    width: 80%;
}

button {
    margin: 0 auto;
    padding: 0.5rem 1rem;
    border: 1px solid var(--secondary-color);
    border-radius: 1rem;
    background: var(--primary-color);
    color: #fff;
    font-size: clamp(1rem, 2vw, 1.5rem);
    cursor: pointer;
    transition: all 0.2s ease;
}

button:hover {
    background: var(--secondary-color);
    transform: translateY(-2px);
}

.tab-btn:active {
    transform: translateY(0);
}

header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background-color: var(--secondary-color);
    height: 6rem;
    font-weight: bold;
    display: flex;
    align-items: center;
    z-index: 1;
}

main {
    padding-top: 7rem;
    padding-bottom: 1rem;
    min-height: calc(100vh - 6rem);
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

footer {
    background-color: var(--secondary-color);
    height: 6rem;
    display: flex;
    align-items: center;
}