grabowski
430e870426
The stay-bands restructure changed the calendar markup to per-week rows (.cal-weekdays / .cal-week / .cal-week-days / .cal-week-bands) but styles.css still only styled the old flat .calendar-grid, so day cells stacked vertically. Adds the 7-column grid layout for the new structure plus the missing stay-band styles (lanes, rounded ends, hover), and updates the narrow-screen rules.