:root{--primary-color:#207CFB;--primary-light:#e6f0ff;--text-color:#111;--light-gray:#f5f5f5;--border-color:#e0e0e0;--white:#fff;--shadow:0 4px 12px rgba(0,0,0,.1);--transition:all 0.2s ease}.date-range-container{position:relative}.date-range-input{width:100%;height:100%;padding:12px 16px;border:1px solid var(--border-color);border-radius:8px;font-size:14px;color:var(--text-color);cursor:pointer;transition:var(--transition);outline:none}.date-range-input:hover{border-color:var(--primary-color)}.date-range-input:focus{border-color:var(--primary-color);box-shadow:0 0 0 2px rgba(67,97,238,.2)}.date-range-calendar{position:absolute;top:calc(100% + 8px);left:0;width:320px;background-color:var(--white);border-radius:12px;box-shadow:var(--shadow);z-index:1000;display:none;padding:16px;animation:fadeIn 0.2s ease}@keyframes fadeIn{from{opacity:0;transform:translateY(-10px)}to{opacity:1;transform:translateY(0)}}.calendar-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:16px}.calendar-title{font-size:16px;font-weight:600;color:var(--text-color);cursor:pointer}.calendar-nav{display:flex;gap:8px}.calendar-nav button{width:32px;height:32px;display:flex;align-items:center;justify-content:center;background-color:var(--light-gray);border:none;border-radius:50%;cursor:pointer;transition:var(--transition)}.calendar-nav button:hover{background-color:var(--primary-light);color:var(--primary-color)}.calendar-grid{display:grid;grid-template-columns:repeat(7,1fr);gap:4px;margin-bottom:12px}.calendar-day-header{text-align:center;font-size:12px;font-weight:500;color:#666;padding:8px 0}.calendar-day{display:flex;align-items:center;justify-content:center;height:36px;border-radius:8px;font-size:14px;cursor:pointer;transition:var(--transition);position:relative}.calendar-day:hover:not(.disabled):not(.other-month){background-color:var(--primary-light);color:var(--primary-color)}.calendar-day.selected{background-color:var(--primary-color);color:#fff;font-weight:500}.calendar-day.disabled{cursor:no-drop;color:#aaa}.calendar-day.in-range:not(.selected){background-color:var(--primary-light);color:var(--primary-color)}.calendar-day.other-month{color:#aaa}.date-range-actions{display:flex;justify-content:flex-end;gap:8px;margin-top:12px;padding-top:12px;border-top:1px solid var(--border-color)}.date-range-actions button{padding:8px 16px;border-radius:6px;font-size:14px;font-weight:500;cursor:pointer;transition:var(--transition)}.date-range-actions .cancel-btn{background-color:transparent;border:1px solid var(--border-color);color:#666}.date-range-actions .cancel-btn:hover{background-color:var(--light-gray)}.date-range-actions .confirm-btn{background-color:var(--primary-color);border:1px solid var(--primary-color);color:#fff}.date-range-actions .confirm-btn:hover{background-color:#3a56d4;border-color:#3a56d4}.date-range-container::after{content:'';position:absolute;top:50%;right:16px;width:0;height:0;border-left:5px solid transparent;border-right:5px solid transparent;border-top:5px solid #666;transform:translateY(-50%);pointer-events:none}.year-selector{display:none;position:absolute;top:0;left:0;width:100%;height:100%;background:#fff;border-radius:12px;padding:16px;z-index:10}.year-selector-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:16px}.year-selector-title{font-size:16px;font-weight:600}.year-selector-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:8px}.year-selector-year{padding:8px;text-align:center;border-radius:6px;cursor:pointer;transition:var(--transition)}.year-selector-year:hover{background-color:var(--primary-light);color:var(--primary-color)}.year-selector-year.selected{background-color:var(--primary-color);color:#fff}