body.is-404 {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

/* ==========================================================================
   Attributions page
   ========================================================================== */
.attribution-body h2 {
    font-size: 1.25rem;
    margin-top: var(--sp-xxl);
    margin-bottom: var(--sp-md);
    padding-top: var(--sp-lg);
    padding-bottom: var(--sp-sm);
    border-top: 1px solid var(--accent-muted, rgba(0, 0, 0, 0.12));
    color: var(--primary, inherit);
}
.attribution-body h2:first-of-type {
    margin-top: var(--sp-lg);
    padding-top: 0;
    border-top: none;
}
.attribution-list {
    list-style: none;
    padding-left: 0;
    margin: 0 0 var(--sp-xl) 0;
}
.attribution-list li {
    padding: var(--sp-xs) 0;
    line-height: 1.5;
    font-size: 0.95rem;
    word-break: break-word;
}
.attribution-list li strong {
    display: inline-block;
    min-width: 130px;
    color: var(--text-muted, inherit);
    font-weight: 600;
}
.attribution-list li code {
    background: rgba(0, 0, 0, 0.05);
    padding: 2px 6px;
    border-radius: 4px;
    font-size: 0.9em;
}
.attribution-list li a {
    word-break: break-all;
}

/* ==========================================================================
   404 Page
   ========================================================================== */
.not-found {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: var(--sp-xxxl) var(--sp-xl);
    background: var(--parchment);
}

.not-found-code {
    font-family: var(--font-display);
    font-size: clamp(5rem, 15vw, 10rem);
    font-weight: 800;
    color: var(--accent);
    line-height: 1;
    margin-bottom: var(--sp-lg);
}

.not-found h1 {
    font-family: var(--font-display);
    font-size: 1.5rem;
    color: var(--text-dark);
    margin-bottom: var(--sp-md);
}

.not-found p {
    color: var(--text-secondary);
    margin-bottom: var(--sp-xl);
}

.not-found-suggestions {
    margin-bottom: var(--sp-xxl);
}

.not-found-suggestions-label {
    font-family: var(--font-display);
    font-weight: 600;
    font-size: 0.9rem;
    color: var(--text-dark);
    margin-bottom: var(--sp-md);
}

.not-found-suggestions-grid {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--sp-sm);
}

.not-found-suggestion {
    display: inline-block;
    padding: var(--sp-sm) var(--sp-lg);
    background: var(--card-surface);
    border: 1px solid var(--card-separator);
    border-radius: var(--r-xxl);
    font-family: var(--font-display);
    font-weight: 600;
    font-size: 0.875rem;
    color: var(--felt-medium);
    transition:
        background 0.2s,
        border-color 0.2s,
        color 0.2s;
}

.not-found-suggestion:hover {
    background: var(--felt-medium);
    border-color: var(--felt-medium);
    color: var(--text-light);
}