* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: Arial, Helvetica, sans-serif;
    line-height: 1.6;
    color: #1f2933;
    background-color: #f4f6f8;
}

header,
main,
footer {
    width: min(1100px, 92%);
    margin: 0 auto;
}

header {
    padding: 1.25rem 1.5rem 1rem;
    text-align: center;
    background-color: #123c4a;
    color: #ffffff;
    border-radius: 0 0 0.75rem 0.75rem;
}

header h1 {
    margin-bottom: 0.25rem;
    font-size: clamp(2rem, 5vw, 3rem);
}

header > p {
    margin-top: 0;
    font-size: 1.1rem;
    font-weight: 600;
}

nav ul {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 0.75rem 1.25rem;
    padding: 0;
    margin: 0.75rem 0 0;
    list-style: none;
}

nav a {
    color: #d8f3f6;
    font-weight: 700;
    text-decoration: none;
}

nav a:hover,
nav a:focus {
    text-decoration: underline;
}

address {
    font-style: normal;
    line-height: 1.7;
}

address a {
    color: #d8f3f6;
}

main {
    display: grid;
    gap: 1.5rem;
    padding-bottom: 2rem;
}

section,
aside {
    padding: 1.5rem;
    background-color: #ffffff;
    border: 2px solid #0b7285;
    border-radius: 0.5rem;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
}

h2 {
    margin-top: 0;
    padding-bottom: 0.4rem;
    border-bottom: 2px solid #d9e2e8;
    color: #123c4a;
    font-size: 1.5rem;
}

h3 {
    margin-bottom: 0.35rem;
    font-size: 1.15rem;
}

article {
    padding: 1rem 0;
    border-bottom: 1px solid #e5e7eb;
}

article:last-child {
    border-bottom: none;
}

ul {
    padding-left: 1.25rem;
}

li {
    margin-bottom: 0.35rem;
}

dl {
    display: grid;
    grid-template-columns: max-content 1fr;
    gap: 0.3rem 1rem;
    margin: 0.75rem 0;
}

dt {
    font-weight: 700;
}

dd {
    margin: 0;
}

#skills > ul {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 0.4rem 1.5rem;
}

a {
    color: #0b5f75;
}

a:focus-visible {
    outline: 3px solid #f59e0b;
    outline-offset: 3px;
    border-radius: 2px;
}

footer {
    padding: 1.25rem 0 2rem;
    text-align: center;
    font-size: 0.9rem;
}

@media (min-width: 800px) {
    
}

@media (max-width: 600px) {
    header {
        padding-top: 1.25rem;
    }

    nav ul {
        flex-direction: column;
        align-items: center;
    }

    section,
    aside {
        padding: 1rem;
    }

    dl {
        grid-template-columns: 1fr;
        gap: 0;
    }

    dd {
        margin-bottom: 0.6rem;
    }
}