/* 小组件通用样式 */
.widget {
    background: rgba(255, 255, 255, 0.75);
    backdrop-filter: blur(20px) saturate(150%);
    -webkit-backdrop-filter: blur(20px) saturate(150%);
    border-radius: 18px;
    padding: 14px;
    box-shadow: 
        0 2px 12px rgba(0, 0, 0, 0.06),
        0 4px 20px rgba(0, 0, 0, 0.03),
        inset 0 1px 0 rgba(255, 255, 255, 0.6);
    border: 1px solid rgba(255, 255, 255, 0.45);
    cursor: grab;
    position: relative;
    overflow: hidden;
    width: 100%;
    height: 100%;
    min-height: 80px;
    transition: transform 0.25s cubic-bezier(0.34, 1.56, 0.64, 1),
                box-shadow 0.25s ease;
}

.widget:hover {
    box-shadow: 
        0 4px 16px rgba(0, 0, 0, 0.1),
        0 8px 28px rgba(0, 0, 0, 0.05),
        inset 0 1px 0 rgba(255, 255, 255, 0.6);
}

.widget:active {
    cursor: grabbing;
}

.widget-close {
    position: absolute;
    top: 6px;
    right: 6px;
    background: rgba(0, 0, 0, 0.4);
    color: white;
    border: none;
    border-radius: 50%;
    width: 20px;
    height: 20px;
    font-size: 12px;
    cursor: pointer;
    display: none;
    z-index: 10;
    backdrop-filter: blur(4px);
    transition: background 0.2s;
}

.widget-close:hover {
    background: rgba(0, 0, 0, 0.6);
}

.widget:hover .widget-close {
    display: flex;
    align-items: center;
    justify-content: center;
}

/* 时钟小组件 (2x1) */
.clock-widget {
    display: flex;
    align-items: center;
    justify-content: space-around;
    height: 100%;
    padding: 10px 20px;
}

.clock-time {
    font-size: 36px;
    font-weight: 700;
    color: #2d2d3a;
    line-height: 1;
    letter-spacing: -1px;
}

.clock-date {
    font-size: 14px;
    color: #8888a0;
    font-weight: 500;
}

/* 待办清单小组件 (2x1) */
.todo-widget {
    display: flex;
    height: 100%;
    padding: 10px 14px;
}

.todo-left {
    width: 25%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    border-right: 1px solid rgba(0, 0, 0, 0.08);
    padding-right: 14px;
}

.todo-day {
    font-size: 36px;
    font-weight: 700;
    color: #2d2d3a;
    line-height: 1;
}

.todo-month {
    font-size: 12px;
    color: #8888a0;
    margin-top: 4px;
    font-weight: 500;
}

.todo-right {
    flex: 1;
    padding-left: 14px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 4px;
}

.todo-item {
    font-size: 12px;
    color: #3d3d4a;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    font-weight: 400;
}

.todo-item.completed {
    text-decoration: line-through;
    color: #b0b0c0;
}

/* 日历小组件 (2x1) */
.calendar-widget {
    display: flex;
    height: 100%;
    padding: 10px 14px;
}

.calendar-left {
    width: 28%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    border-right: 1px solid rgba(0, 0, 0, 0.08);
    padding-right: 14px;
}

.calendar-weekday {
    font-size: 13px;
    color: #8888a0;
    text-transform: uppercase;
    font-weight: 500;
}

.calendar-day {
    font-size: 44px;
    font-weight: 700;
    color: #2d2d3a;
    line-height: 1;
    margin: 4px 0;
}

.calendar-right {
    flex: 1;
    padding-left: 14px;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.calendar-header {
    font-size: 11px;
    font-weight: 600;
    color: #4d4d5a;
    text-align: center;
    margin-bottom: 6px;
}

.calendar-weekdays {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 2px;
    margin-bottom: 4px;
}

.calendar-weekdays span {
    font-size: 9px;
    color: #a0a0b0;
    text-align: center;
    font-weight: 500;
}

.calendar-days {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 2px;
}

.calendar-days span {
    font-size: 9px;
    color: #4d4d5a;
    text-align: center;
    padding: 2px;
    border-radius: 50%;
    line-height: 1.6;
}

.calendar-days span.today {
    background: #6366f1;
    color: white;
    font-weight: 600;
}

.calendar-days span.other-month {
    color: #d0d0d8;
}

/* 待办弹窗 */
.todo-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.4);
    backdrop-filter: blur(8px);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 10000;
}

.todo-modal.active {
    display: flex;
}

.todo-modal-content {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    border-radius: 20px;
    padding: 28px;
    width: 90%;
    max-width: 480px;
    max-height: 80vh;
    overflow-y: auto;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.15);
    border: 1px solid rgba(255, 255, 255, 0.5);
}

.todo-modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

.todo-modal-header h2 {
    font-size: 18px;
    color: #2d2d3a;
    font-weight: 600;
}

.todo-modal-close {
    background: none;
    border: none;
    font-size: 22px;
    cursor: pointer;
    color: #999;
    transition: color 0.2s;
}

.todo-modal-close:hover {
    color: #333;
}

.todo-date-selector {
    display: flex;
    gap: 10px;
    margin-bottom: 16px;
}

.todo-date-selector input {
    flex: 1;
    padding: 10px 12px;
    border: 1px solid rgba(0, 0, 0, 0.1);
    border-radius: 10px;
    font-size: 14px;
    background: rgba(255, 255, 255, 0.8);
}

.todo-input-group {
    display: flex;
    gap: 8px;
    margin-bottom: 16px;
}

.todo-input-group input {
    flex: 1;
    padding: 10px 12px;
    border: 1px solid rgba(0, 0, 0, 0.1);
    border-radius: 10px;
    font-size: 14px;
    background: rgba(255, 255, 255, 0.8);
}

.todo-input-group button {
    padding: 10px 18px;
    background: #6366f1;
    color: white;
    border: none;
    border-radius: 10px;
    cursor: pointer;
    font-weight: 500;
    transition: background 0.2s, transform 0.15s;
}

.todo-input-group button:hover {
    background: #5558e6;
}

.todo-input-group button:active {
    transform: scale(0.96);
}

.todo-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.todo-list-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px;
    background: rgba(0, 0, 0, 0.03);
    border-radius: 10px;
    transition: background 0.2s;
}

.todo-list-item:hover {
    background: rgba(0, 0, 0, 0.05);
}

.todo-list-item input[type="checkbox"] {
    width: 18px;
    height: 18px;
    cursor: pointer;
    accent-color: #6366f1;
}

.todo-list-item span {
    flex: 1;
    font-size: 14px;
    color: #3d3d4a;
}

.todo-list-item.completed span {
    text-decoration: line-through;
    color: #b0b0c0;
}

.todo-list-item button {
    background: #f87171;
    color: white;
    border: none;
    padding: 5px 10px;
    border-radius: 6px;
    cursor: pointer;
    font-size: 11px;
    font-weight: 500;
    transition: background 0.2s;
}

.todo-list-item button:hover {
    background: #ef4444;
}

/* ===== 移动端性能优化 ===== */
@media (hover: none) and (pointer: coarse) {
    .widget {
        backdrop-filter: none;
        -webkit-backdrop-filter: none;
        background: rgba(255, 255, 255, 0.85);
        box-shadow: 0 2px 12px rgba(0, 0, 0, 0.06);
    }
    
    .widget:hover {
        box-shadow: 0 2px 12px rgba(0, 0, 0, 0.06);
    }
    
    .widget-close {
        backdrop-filter: none;
    }
    
    .todo-modal {
        backdrop-filter: none;
        -webkit-backdrop-filter: none;
        background: rgba(0, 0, 0, 0.5);
    }
    
    .todo-modal-content {
        backdrop-filter: none;
        -webkit-backdrop-filter: none;
        background: rgba(255, 255, 255, 0.98);
    }
    
    .widget {
        transition: transform 0.15s ease;
    }
}