body {
    margin: 5% auto;
    background: var(--background-color);
    color: var(--text-color);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    font-size: 1rem;
    line-height: 1.8;
    text-shadow: 0 1px 0 #f2f2f2;
    max-width: 73%;
    transition: background-color 0.2s ease, color 0.2s ease;
}

:root {
    --background-color: #e8e8e8;
    --surface-color: #f2f2f2;
    --text-color: #444444;
    --border-color: #d9d9d9;
    --header-color: #787878;
}

body.dark-mode {
    --background-color: #242424;
    --surface-color: #303030;
    --text-color: #eeeeee;
    --border-color: #555555;
    --header-color: #555555;
    text-shadow: none;
}

code {
    background: white;
}

a {
    border-bottom: 1px solid var(--text-color);
    color: var(--text-color);
    text-decoration: none;
}

a:hover {
    border-bottom: 0;
}

a:focus-visible,
#theme-toggle:focus-visible {
    outline: 3px solid var(--header-color);
    outline-offset: 3px;
}

.skip-link {
    position: absolute;
    top: -4rem;
    left: 1rem;
    z-index: 1;
    padding: 0.5rem 0.75rem;
    background: var(--surface-color);
    color: var(--text-color);
    text-shadow: none;
}

.skip-link:focus {
    top: 1rem;
    outline: 3px solid var(--header-color);
    outline-offset: 2px;
}

#theme-toggle {
    width: 2.5rem;
    height: 2.5rem;
    border: 1px solid var(--border-color);
    border-radius: 3px;
    padding: 0;
    background: var(--surface-color);
    color: var(--text-color);
    cursor: pointer;
    font-size: 1.25rem;
    line-height: 1;
}

#lang-dropdown {
    display: inline-flex;
    gap: 0.5rem;
    margin: 1rem 0 0 1rem;
}

#lang-dropdown a {
    border-bottom: 0;
    color: var(--text-color);
    font-size: 0.85rem;
    font-weight: 600;
}

#lang-dropdown a:hover,
#lang-dropdown a.active {
    color: var(--header-color);
    text-decoration: underline;
}

#theme-toggle:hover {
    background: var(--header-color);
    color: #ffffff;
}

table {
    border-collapse: collapse;
    margin: 1.5rem 0;
    max-width: 100%;
    width: fit-content;
    background: var(--surface-color);
    text-align: left;
}

th,
td {
    border: 1px solid var(--border-color);
    padding: 0.75rem 1rem;
}

tr:first-child {
    background: var(--header-color);
    color: #ffffff;
    font-weight: 600;
    text-shadow: none;
}

tr:nth-child(even) {
    background: var(--surface-color);
}

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}