:root {
    color-scheme: light dark;
    --bg: #f5f5f5;
    --fg: #111;
    --accent: #8b0000;
    --muted: #666;
    --border: #ccc;
}
@media (prefers-color-scheme: dark) {
    :root { --bg: #111; --fg: #eee; --muted: #aaa; --border: #333; }
}

* { box-sizing: border-box; }

body {
    font-family: system-ui, sans-serif;
    margin: 0;
    background: var(--bg);
    color: var(--fg);
    line-height: 1.5;
}

header {
    padding: 1rem;
    border-bottom: 1px solid var(--border);
}
header h1 { margin: 0; font-size: 1.25rem; }
header a { color: var(--accent); text-decoration: none; }

main {
    padding: 1rem;
    max-width: 60rem;
    margin: 0 auto;
}

nav[aria-label="Actions"] {
    border-bottom: 1px solid var(--border);
    padding: 0.5rem 1rem;
}
nav[aria-label="Actions"] h2 {
    font-size: 1rem;
    margin: 0 0 0.5rem;
    color: var(--muted);
}
nav[aria-label="Actions"] ul {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    align-items: center;
}
nav[aria-label="Actions"] form { margin: 0; }
nav[aria-label="Actions"] button {
    background: none;
    border: none;
    padding: 0;
    color: var(--accent);
    cursor: pointer;
    text-decoration: underline;
    font: inherit;
}

.skip-link {
    position: absolute;
    left: -9999px;
}
.skip-link:focus {
    left: 1rem;
    top: 1rem;
    background: var(--bg);
    padding: 0.5rem;
    border: 1px solid var(--border);
}

.error {
    color: var(--accent);
    padding: 0.5rem;
    border: 1px solid var(--accent);
}

dl {
    display: grid;
    grid-template-columns: max-content 1fr;
    gap: 0.25rem 1rem;
}
dt { font-weight: bold; }

form p { margin: 0.5rem 0; }
input[type=text], input[type=password] {
    padding: 0.4rem;
    font: inherit;
    border: 1px solid var(--border);
    background: var(--bg);
    color: var(--fg);
}
button[type=submit] {
    padding: 0.5rem 1rem;
    font: inherit;
    cursor: pointer;
}
fieldset { margin: 1rem 0; padding: 0.5rem 1rem; border: 1px solid var(--border); }