body {
    background: #a8adb3;
    color: #222;
    min-height: 100vh;
    margin: 0;
    padding: 4px;
    font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    line-height: 1.7;
}

body.with-vertical-nav {
    background: #a8adb3;
}

main {
    max-width: 1100px;
    margin: 0 auto;
    padding: var(--content-padding, 4px);
}

section.card {
    background: #fff;
    border-radius: 10px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.06);
    padding: var(--card-padding, 16px);
    margin-bottom: 1.5rem;
}

h1, h2, h3, h4, h5, h6 {
    font-family: "Iosevka Charon", ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    margin-top: 0;
}

header {
    text-align: center;
}

header h1 {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

p, li {
    font-family: "Iosevka Charon Mono", ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
    line-height: 1.7;
    margin: 0 0 0.75rem 0;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
    border-radius: 8px;
    margin: 0.5em 0;
}

@media (max-width: 900px) {
    main { padding: 2vw; }
    section.card { padding: 2vw; }
}

@media (max-width: 600px) {
    main { padding: 1vw; }
    section.card { padding: 1vw; }
}