:root {
    --bg: #ffffff;
    --text: #1a1a1a;
    --muted: #6b6b6b;
    --line: #e2e2e2;
    --hover: #f5f5f5;
}

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

body {
    background: var(--bg);
    color: var(--text);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px;
}

main {
    width: 100%;
    max-width: 480px;
}

header {
    margin-bottom: 48px;
    text-align: left;
}

h1 {
    font-size: 1.5rem;
    font-weight: 600;
    letter-spacing: -0.01em;
}

header p {
    margin-top: 6px;
    color: var(--muted);
    font-size: 0.95rem;
}

nav ul {
    list-style: none;
    border-top: 1px solid var(--line);
}

nav li {
    border-bottom: 1px solid var(--line);
}

nav a {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    padding: 20px 4px;
    text-decoration: none;
    color: var(--text);
    transition: background-color 0.15s ease, padding-left 0.15s ease;
}

nav a:hover,
nav a:focus-visible {
    background-color: var(--hover);
    padding-left: 12px;
}

nav a:focus-visible {
    outline: 2px solid var(--text);
    outline-offset: -2px;
}

.nom {
    font-size: 1.05rem;
    font-weight: 500;
}

.desc {
    font-size: 0.85rem;
    color: var(--muted);
}

.retour {
    display: inline-block;
    margin-bottom: 24px;
    font-size: 0.85rem;
    color: var(--muted);
    text-decoration: none;
    border-bottom: 1px solid transparent;
}

.retour:hover,
.retour:focus-visible {
    color: var(--text);
    border-bottom-color: var(--text);
}

.vide {
    color: var(--muted);
    font-size: 0.9rem;
    padding: 20px 4px;
    border-top: 1px solid var(--line);
}

footer {
    margin-top: 40px;
    padding-top: 20px;
    border-top: 1px solid var(--line);
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.8rem;
    color: var(--muted);
}

footer a {
    color: var(--muted);
    text-decoration: none;
    border-bottom: 1px solid transparent;
    transition: border-color 0.15s ease, color 0.15s ease;
}

footer a:hover,
footer a:focus-visible {
    color: var(--text);
    border-bottom-color: var(--text);
}

footer .footer-links {
    display: flex;
    gap: 16px;
}

@media (prefers-color-scheme: dark) {
    :root {
        --bg: #121212;
        --text: #f0f0f0;
        --muted: #999999;
        --line: #2a2a2a;
        --hover: #1c1c1c;
    }
}