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var(--ui-good)}.ielts-calendar{border:1px solid #e2e8f0;border-radius:var(--ui-radius);overflow:hidden}.cal-header{display:flex;align-items:center;justify-content:space-between;background:#f8fafc;padding:8px 12px;border-bottom:1px solid #e2e8f0}.cal-header .month{font-weight:900;color:#0f172a}.cal-header button{background:#fff;border:1px solid #e2e8f0;border-radius:calc(var(--ui-radius) - 8px);padding:8px 10px;cursor:pointer}.cal-weekdays{display:grid;grid-template-columns:repeat(7,1fr);gap:4px;padding:8px 8px 0;font-size:.85rem;color:#64748b}.cal-weekdays div{text-align:center;font-weight:800}.cal-grid{display:grid;grid-template-columns:repeat(7,1fr);gap:4px;padding:8px}.cal-day{padding:12px;border-radius:calc(var(--ui-radius) - 8px);text-align:center;border:1px solid #e2e8f0;background:#fff;color:#0f172a}.cal-day.disabled{opacity:.45;filter:grayscale(1)}.cal-day.allowed{background:#dcfce7;border-color:#86efac;cursor:pointer}.cal-day.selected{outline:3px solid 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