:root {
    --background-color: #a2d6e1;
    --link-color: rgb(28, 64, 106);
    --text-color: #000;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Poppins', sans-serif;
    background-color: var(--background-color);
    color: var(--text-color);
    line-height: 1.6;
}

html, body {
    height: 100%;
}

body {
    display: flex;
    flex-direction: column;
}

/* NAV */

header {
    background-color: var(--link-color);
}

.nav {
    max-width: 1100px;
    margin: 0 auto;
    padding: 1rem;
    display: flex;
    gap: 1.5rem;
}

.nav a {
    color: white;
    text-decoration: none;
    font-size: 1.1rem;
}

.nav a:hover {
    text-decoration: underline;
}

main {
    flex: 1;
    max-width: 900px;
    margin: 2rem auto;
    padding: 1rem;
    text-align: center;
}

h1 {
    font-size: 2rem;
    margin-bottom: 1.5rem;
}

article {
    background-color: white;
    padding: 1.25rem;
    border-radius: 12px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

article h2 {
    margin-bottom: 1rem;
    font-size: 1.3rem;
}

video {
    width: 100%;
    height: auto;
    border-radius: 8px;
}

footer {
    background-color: var(--link-color);
    color: white;
    text-align: center;
    padding: 1rem;
    font-size: 0.85rem;
    margin-top: 3rem;
}

/* TABLET */

@media (min-width: 600px) {
    h1 {
        font-size: 2.4rem;
    }

    article h2 {
        font-size: 1.5rem;
    }
}

/* DESKTOP */

@media (min-width: 900px) {
    main {
        max-width: 1000px;
    }
}