:root{--primary: #4A90D9;--primary-dark: #357ab8;--purple: #7c3aed;--vacation: #ef4444;--vacation-bg: #fff1f1;--bg: #f0f4f8;--surface: #ffffff;--border: #e2e8f0;--text: #1e293b;--text-muted: #94a3b8;--holiday: #f59e0b;--holiday-bg: #fffbeb;--radius: 12px;--shadow: 0 1px 4px rgba(0, 0, 0, .08)}*{box-sizing:border-box;margin:0;padding:0}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;background:var(--bg);color:var(--text);-webkit-font-smoothing:antialiased;min-height:100dvh}#root{max-width:480px;margin:0 auto;min-height:100dvh;display:flex;flex-direction:column;background:var(--bg)}.header{display:flex;align-items:center;justify-content:space-between;padding:14px 16px;background:var(--surface);border-bottom:1px solid var(--border);position:sticky;top:0;z-index:10;box-shadow:var(--shadow)}.month-title{font-size:1.15rem;font-weight:700;letter-spacing:-.02em;color:var(--text);text-align:center;min-width:160px}.nav-btn{width:42px;height:42px;border:1.5px solid var(--border);background:var(--surface);border-radius:50%;font-size:1.5rem;line-height:1;cursor:pointer;display:flex;align-items:center;justify-content:center;color:var(--text);transition:background .12s,border-color .12s;-webkit-tap-highlight-color:transparent;touch-action:manipulation}.nav-btn:active{background:var(--bg);border-color:var(--primary)}.calendar{background:var(--surface);margin:12px;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);border:1px solid var(--border)}.weekdays{display:grid;grid-template-columns:repeat(7,1fr);background:var(--bg);border-bottom:1px solid var(--border)}.weekday{text-align:center;padding:8px 2px;font-size:.68rem;font-weight:700;color:var(--text-muted);text-transform:uppercase;letter-spacing:.05em}.calendar-grid{display:grid;grid-template-columns:repeat(7,1fr)}.day-cell{min-height:58px;padding:4px 2px;border-right:1px solid var(--border);border-bottom:1px solid var(--border);display:flex;flex-direction:column;align-items:center;gap:3px}.day-cell:nth-child(7n){border-right:none}.day-cell:nth-last-child(-n+7){border-bottom:none}.day-cell--filler{background:var(--bg);opacity:.5}.day-cell--vacation{background:var(--vacation-bg)}.day-number{width:26px;height:26px;display:flex;align-items:center;justify-content:center;font-size:.8rem;font-weight:500;color:var(--text);border-radius:50%;flex-shrink:0}.day-number--today{background:#16a34a;color:#fff;font-weight:700;border-radius:50%}.day-cell--weekend{background:#f1f5f9;opacity:.6}.day-badges{display:flex;flex-wrap:wrap;gap:2px;justify-content:center}.badge{width:20px;height:20px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:.6rem;font-weight:800;color:#fff;flex-shrink:0;cursor:default}.badge--vacation{border:2px solid;font-size:.55rem;text-decoration:line-through}.badge--unknown{background:transparent;color:var(--vacation);font-size:.75rem;font-weight:900}.legend{display:flex;gap:16px;flex-wrap:wrap;padding:12px 16px;background:var(--surface);margin:0 12px;border-radius:var(--radius);box-shadow:var(--shadow);border:1px solid var(--border)}.legend-item{display:flex;align-items:center;gap:6px;font-size:.78rem;font-weight:500;color:var(--text)}.legend-dot{width:12px;height:12px;border-radius:50%;flex-shrink:0}.legend-dot--vacation{background:var(--vacation)}.legend-dot--holiday{background:var(--holiday)}.day-cell--holiday{background:var(--holiday-bg)}.holiday-dot{width:6px;height:6px;border-radius:50%;background:var(--holiday);flex-shrink:0;margin-top:1px}.sync-label{text-align:center;font-size:.7rem;color:var(--text-muted);padding:8px 16px 16px}.sync-label--alert{color:var(--vacation);font-weight:700}.state-msg{text-align:center;padding:3rem 2rem;color:var(--text-muted);font-size:.9rem;line-height:1.6}.state-msg--error{color:var(--vacation)}.app{padding-bottom:env(safe-area-inset-bottom,0px)}