.nav-item-button {
    border: 0;
    background: transparent;
    text-align: left;
}

.theme-switcher-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 0.75rem;
}

.theme-option {
    border: 2px solid var(--color-border);
    border-radius: 0.75rem;
    background: var(--color-surface);
    color: var(--color-text);
    padding: 0.75rem;
    text-align: left;
    transition: border-color 0.15s ease, box-shadow 0.15s ease, transform 0.15s ease;
}

.theme-option:hover {
    border-color: var(--color-secondary);
    transform: translateY(-1px);
}

.theme-option.is-active {
    border-color: var(--color-secondary);
    box-shadow: 0 0 0 0.2rem var(--color-focus-ring);
}

.theme-option-swatch {
    display: flex;
    gap: 0.35rem;
    margin-bottom: 0.5rem;
}

.theme-option-swatch span {
    width: 22px;
    height: 22px;
    border-radius: 50%;
    border: 1px solid rgba(0, 0, 0, 0.18);
    display: inline-block;
}

.theme-option-title {
    font-weight: 700;
    line-height: 1.1;
}

.theme-option-subtitle {
    font-size: 0.8rem;
    color: var(--color-text-muted);
}