/* --- Mercury's year ----------------------------------------------------------------
   The wheel borrows the signwheel frame; these are the few marks of its own,
   in the same quiet tones as the Venus rose so the two pages read as a pair. */

.mc__sunring { fill: none; stroke: var(--line-field); stroke-width: 1; stroke-dasharray: 3 7; }
.mc__earth { fill: var(--el-air); stroke: var(--ink-void); stroke-width: 3; }
.mc__sight { stroke: var(--paper-dim); stroke-width: 1.2; stroke-opacity: 0.7; }
.mc__sight--sun { stroke-dasharray: 4 6; }

/* the lists follow one another in a single section, so each heading needs the
   air a new block would get */
.mc__heading { margin-top: 2.75rem; }
.mc__heading + p { margin-top: 0.75rem; max-width: 62ch; }