/* 全局样式 - Balenciaga风格 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.4;
    color: #000;
    background-color: #fff;
    transition: all 0.3s ease;
    letter-spacing: 0.02em;
}

/* 头部样式 */
header {
    background-color: #fff;
    padding: 15px 40px;
    position: sticky;
    top: 0;
    z-index: 100;
    border-bottom: 1px solid #000;
}

.header-top {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: nowrap;
    overflow: hidden;
}

header h1 {
    font-size: clamp(0.8rem, 1.8vw, 1.4rem);
    font-weight: 400;
    text-transform: uppercase;
    letter-spacing: 2px;
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: nowrap;
    overflow: hidden;
    flex-shrink: 1;
    min-width: 0;
}

.language-toggle {
    display: flex;
    gap: 0;
}

.language-toggle button {
    padding: clamp(4px, 0.8vw, 6px) clamp(8px, 1.5vw, 15px);
    border: 1px solid #000;
    background-color: transparent;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: clamp(0.5rem, 0.8vw, 0.6rem);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-left: -1px;
    white-space: nowrap;
    flex-shrink: 2;
    min-width: 60px;
    overflow: hidden;
    text-overflow: ellipsis;
}

.language-toggle button:first-child {
    margin-left: 0;
}

.language-toggle button.active {
    background-color: #000;
    color: #fff;
}

#user-actions {
    display: flex;
    gap: 0;
}

#login-btn, #logout-btn, #today-btn {
    padding: clamp(4px, 0.8vw, 6px) clamp(8px, 1.5vw, 15px);
    border: 1px solid #000;
    background-color: transparent;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: clamp(0.5rem, 0.8vw, 0.6rem);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-left: -1px;
    white-space: nowrap;
    flex-shrink: 2;
    min-width: 80px;
    overflow: hidden;
    text-overflow: ellipsis;
}

#login-btn:first-child, #today-btn:first-child {
    margin-left: 0;
}

#login-btn:first-child {
    margin-left: 0;
}

#login-btn:hover, #logout-btn:hover, #today-btn:hover {
    background-color: #000;
    color: #fff;
}

/* 模态框样式 */
.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    overflow: auto;
    background-color: rgba(0,0,0,0.9);
    animation: fadeIn 0.5s ease;
}

.modal-content {
    background-color: #fff;
    margin: 15% auto;
    padding: 50px;
    border: 1px solid #000;
    width: 90%;
    max-width: 600px;
    animation: slideIn 0.5s ease;
    position: relative;
}

.close {
    color: #000;
    position: absolute;
    top: 20px;
    right: 30px;
    font-size: 24px;
    font-weight: 400;
    cursor: pointer;
    transition: all 0.3s ease;
}

.close:hover {
    opacity: 0.7;
}

.modal-content h2 {
    margin-bottom: 40px;
    font-size: 1rem;
    font-weight: 400;
    text-transform: uppercase;
    letter-spacing: 3px;
}

.modal-content input {
    width: 100%;
    padding: 15px;
    margin-bottom: 30px;
    border: 1px solid #000;
    background-color: #fff;
    font-size: 0.9rem;
    font-family: 'Helvetica Neue', Arial, sans-serif;
}

.modal-content button {
    padding: 12px 40px;
    border: 1px solid #000;
    background-color: transparent;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-right: 20px;
}

.modal-content button:hover {
    background-color: #000;
    color: #fff;
}

.modal-actions {
    margin-top: 30px;
    display: flex;
    justify-content: flex-end;
}

/* 导航样式 */
nav {
    background-color: #fff;
    padding: 0 40px;
    border-bottom: 1px solid #000;
    position: static;
}

.nav-container {
    position: static;
    background-color: #fff;
    border-bottom: 1px solid #000;
    padding: 0 40px;
    z-index: 90;
}

.nav-container.sticky {
    position: sticky;
    top: 0;
    z-index: 90;
}

.nav-list {
    display: flex;
    list-style: none;
    gap: 0;
    flex-wrap: wrap;
    justify-content: flex-start;
    align-items: center;
    margin: 0;
    padding: 0;
}

.nav-list li {
    flex: 0 0 auto;
}

.nav-list li button {
    padding: 20px 40px;
    border: none;
    background-color: transparent;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 2px;
    position: relative;
    font-weight: 400;
    white-space: nowrap;
}

/* 响应式导航 */
@media (max-width: 768px) {
    .nav-container {
        padding: 0 20px;
    }
    
    .nav-list {
        justify-content: center;
    }
    
    .nav-list li button {
        padding: 15px 20px;
        font-size: 0.6rem;
    }
}

nav ul li button:hover {
    background-color: #f0f0f0;
}

nav ul li button.active {
    color: #000;
    font-weight: 400;
}

nav ul li button.active::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 1px;
    background-color: #000;
}

/* 主内容区域 */
main {
    padding: 60px 40px;
}

.section {
    display: none;
    animation: fadeIn 0.5s ease;
}

.section.active {
    display: block;
}

/* Dashboard样式 */
.dashboard-container {
    display: flex;
    flex-direction: column;
    gap: 60px;
}

.dashboard-section {
    margin-bottom: 60px;
}

/* 图片上传和查看块样式 */
.image-upload-container {
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.upload-area {
    display: flex;
    gap: 15px;
    align-items: center;
}

.upload-btn {
    padding: 12px 30px;
    border: 1px solid #000;
    background-color: transparent;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 2px;
    display: inline-block;
}

.upload-btn:hover {
    background-color: #000;
    color: #fff;
}

.save-btn {
    padding: 12px 30px;
    border: 1px solid #000;
    background-color: transparent;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 2px;
}

.save-btn:hover {
    background-color: #000;
    color: #fff;
}

.image-viewer {
    width: 100%;
    max-width: 100%;
    overflow: hidden;
}

.image-container {
    position: relative;
    overflow: hidden;
    border: 1px solid #000;
    min-height: 400px;
    display: flex;
    justify-content: center;
    align-items: center;
}

#view-image {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
    transition: transform 0.3s ease;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .image-container {
        min-height: 300px;
    }
}

/* Balenciaga style banner */
.balenciaga-banner {
    padding: 30px 0;
    margin-bottom: 60px;
    border-bottom: 1px solid #000;
    border-top: 1px solid #000;
    overflow: hidden;
    position: relative;
}

.banner-row {
    display: flex;
    align-items: center;
    animation: scrollBanner 30s linear infinite;
    white-space: nowrap;
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
}

@keyframes scrollBanner {
    0% {
        transform: translateY(-50%) translateX(100%);
    }
    100% {
        transform: translateY(-50%) translateX(-100%);
    }
}

/* 确保横幅内容连续滚动 */
.banner-row {
    width: fit-content;
}

.banner-content {
    display: flex;
    align-items: center;
    gap: 15px;
    white-space: nowrap;
    padding-right: 100%; /* 添加右侧 padding 确保内容连续 */
}

.banner-label {
    font-size: 0.7rem;
    font-weight: 400;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: #000;
    font-family: 'Helvetica Neue', Arial, sans-serif;
}

.banner-value {
    font-size: 0.9rem;
    font-weight: 300;
    color: #000;
    font-family: 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.4;
}

.banner-separator {
    font-size: 0.7rem;
    font-weight: 400;
    color: #000;
    margin: 0 10px;
}

/* Glass effect for charts */
.glass-effect {
    background: rgba(255, 255, 255, 0.9);
    padding: 20px;
}

/* Today card specific styles */
.today-stats h4,
.exercise-details h4 {
    font-size: 0.6rem;
    font-weight: 400;
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: 15px;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 15px;
}

.stat-item {
    display: flex;
    flex-direction: column;
    gap: 5px;
}

.stat-label {
    font-size: 0.5rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    opacity: 0.7;
}

.stat-value {
    font-size: 0.8rem;
    font-weight: 300;
}

.exercise-detail {
    display: flex;
    justify-content: space-between;
    padding: 5px 0;
    border-bottom: 1px solid #e5e5e5;
}

.exercise-detail:last-child {
    border-bottom: none;
}

.dashboard-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.dashboard-card {
    background-color: #fff;
    padding: 40px;
    border: 1px solid #000;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.dashboard-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.dashboard-card h3 {
    font-size: 0.7rem;
    font-weight: 400;
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: 30px;
    color: #000;
}

.card-value {
    font-size: 2.5rem;
    font-weight: 300;
    color: #000;
    margin-bottom: 30px;
    transition: all 0.3s ease;
}

.card-chart {
    height: 200px;
    margin-top: 30px;
    padding: 20px;
    background-color: #fff;
    display: flex;
    justify-content: center;
    align-items: center;
}

.card-chart.glass-effect {
    background: rgba(255, 255, 255, 0.9);
}

/* 运动数据下拉框 */
.exercise-dropdown {
    margin-top: 20px;
    border-top: 1px solid #000;
    padding-top: 20px;
}

.dropdown-header {
    padding: 12px 20px;
    border: 1px solid #000;
    background-color: transparent;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: all 0.3s ease;
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 2px;
}

.dropdown-header:hover {
    background-color: #f0f0f0;
}

.dropdown-header.active {
    background-color: #000;
    color: #fff;
}

.dropdown-content {
    display: none;
    padding: 30px;
    border: 1px solid #000;
    border-top: none;
    background-color: #fff;
    animation: slideDown 0.3s ease;
}

.dropdown-content.active {
    display: block;
}

.weekly-data {
    margin-bottom: 30px;
}

.weekly-data h4 {
    font-size: 0.7rem;
    font-weight: 400;
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: 20px;
}

.daily-data {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.daily-item {
    display: flex;
    justify-content: space-between;
    padding: 10px 0;
    border-bottom: 1px solid #000;
}

.daily-item:last-child {
    border-bottom: none;
}

/* 日历样式 */
.calendar-container {
    padding: 0;
}

.calendar-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 40px;
    padding-bottom: 20px;
    border-bottom: 1px solid #e5e5e5;
}

.calendar-header h3 {
    font-size: 1.2rem;
    font-weight: 400;
    text-transform: uppercase;
    letter-spacing: 2px;
}

.calendar-nav {
    display: flex;
    gap: 10px;
}

.calendar-nav button {
    padding: 8px 20px;
    border: 1px solid #000;
    background-color: transparent;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.calendar-nav button:hover {
    background-color: #000;
    color: #fff;
}

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

.calendar-weekday {
    padding: 20px;
    text-align: center;
    font-weight: 500;
    text-transform: uppercase;
    font-size: 0.8rem;
    letter-spacing: 1px;
    border-bottom: 1px solid #e5e5e5;
}

.calendar-day {
    padding: 25px;
    text-align: center;
    border: 1px solid #e5e5e5;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    aspect-ratio: 1;
    display: flex;
    align-items: center;
    justify-content: center;
}

.calendar-day:hover {
    background-color: #f9f9f9;
}

.calendar-day.has-data {
    background-color: #f0f0f0;
    font-weight: 500;
}

.calendar-day.today {
    border: 1px solid #000;
    font-weight: 500;
}

/* 表格样式 */
.table-container {
    overflow-x: auto;
}

.data-table {
    width: 100%;
    border-collapse: collapse;
}

.data-table th,
.data-table td {
    padding: 20px;
    text-align: left;
    border-bottom: 1px solid #e5e5e5;
}

.data-table th {
    background-color: #f9f9f9;
    font-weight: 500;
    text-transform: uppercase;
    font-size: 0.8rem;
    letter-spacing: 1px;
}

.data-table tr:hover {
    background-color: #f9f9f9;
}

/* Timeline样式 */
.timeline-container {
    padding: 0;
}

.timeline-item {
    display: flex;
    margin-bottom: 60px;
    position: relative;
}

.timeline-item::before {
    content: '';
    position: absolute;
    left: 20px;
    top: 40px;
    bottom: -60px;
    width: 1px;
    background-color: #e5e5e5;
}

.timeline-item:last-child::before {
    display: none;
}

.timeline-date {
    width: 120px;
    font-weight: 500;
    text-align: right;
    padding-right: 40px;
    position: relative;
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.timeline-date::after {
    content: '';
    position: absolute;
    right: 25px;
    top: 5px;
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background-color: #000;
}

.timeline-content {
    flex: 1;
    padding: 0 40px;
}

.timeline-content h4 {
    margin-bottom: 20px;
    font-size: 1.1rem;
    font-weight: 400;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.timeline-content p {
    margin-bottom: 15px;
    color: #666;
    font-size: 0.95rem;
}

/* 统计分析样式 */
.statistics-container {
    padding: 0;
}

.statistics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 40px;
}

.statistics-card {
    background-color: #f9f9f9;
    padding: 40px;
    border: 1px solid #e5e5e5;
}

.statistics-card h3 {
    margin-bottom: 30px;
    font-size: 1.1rem;
    font-weight: 400;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.statistics-item {
    display: flex;
    justify-content: space-between;
    margin-bottom: 20px;
    padding-bottom: 15px;
    border-bottom: 1px solid #e5e5e5;
}

.statistics-item:last-child {
    margin-bottom: 0;
    padding-bottom: 0;
    border-bottom: none;
}

.statistics-item span:first-child {
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 1px;
    font-size: 0.9rem;
}

.statistics-item span:last-child {
    font-size: 1.1rem;
    font-weight: 300;
}

/* 表单样式 */
.form-container {
    background-color: #f9f9f9;
    padding: 40px;
    border: 1px solid #e5e5e5;
    margin-top: 40px;
}

.form-container h3 {
    margin-bottom: 40px;
    font-size: 1.2rem;
    font-weight: 400;
    text-transform: uppercase;
    letter-spacing: 2px;
}

.form-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-bottom: 40px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.form-group label {
    font-size: 0.9rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.form-group input {
    padding: 15px;
    border: 1px solid #e5e5e5;
    background-color: #fff;
    font-size: 1rem;
}

.form-actions {
    display: flex;
    gap: 15px;
    justify-content: flex-end;
    margin-top: 40px;
}

.form-actions button {
    padding: 12px 30px;
    border: 1px solid #000;
    background-color: transparent;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.form-actions button:hover {
    background-color: #000;
    color: #fff;
}

/* 动画 */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: scale(0.95);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* 每周卡路里热图样式 */
.calorie-heatmap {
    margin-top: 20px;
}

.heatmap-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 15px;
    margin-bottom: 20px;
}

.heatmap-cell {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    margin: 0 auto;
    border: 1px solid rgba(255, 255, 255, 0.3);
    text-align: center;
    transition: all 0.3s ease;
    cursor: pointer;
    position: relative;
    border-radius: 50%;
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    overflow: hidden;
}

.heatmap-cell::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.2) 0%, transparent 70%);
    transform: scale(0);
    opacity: 0;
    transition: all 0.5s ease;
}

.heatmap-cell:hover {
    transform: translateY(-2px) scale(1.05);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.2);
    border-color: rgba(255, 255, 255, 0.5);
}

.heatmap-cell:hover::before {
    transform: scale(1);
    opacity: 1;
}

/* 确保heatmap不会溢出功能块框架 */
.calorie-heatmap {
    margin-top: 20px;
    padding: 10px;
    box-sizing: border-box;
    overflow: hidden;
}

.heatmap-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 8px;
    margin-bottom: 10px;
    justify-items: center;
    align-items: center;
}

/* 调整单元格内文字大小，适配进一步缩小的圆形 */
.cell-date {
    font-size: 0.35rem;
    opacity: 0.8;
}

.cell-day {
    font-size: 0.6rem;
    font-weight: 500;
}

.cell-weekday {
    font-size: 0.3rem;
    opacity: 0.7;
    margin: 2px 0;
}

.cell-value {
    font-size: 0.45rem;
    margin-top: 3px;
}

/* 确保热图容器能够动态调整大小 */
.calorie-heatmap {
    margin-top: 15px;
    padding: 8px;
    box-sizing: border-box;
    overflow: hidden;
    max-width: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.heatmap-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 8px;
    margin-bottom: 10px;
    justify-items: center;
    align-items: center;
    width: 100%;
    max-width: 400px;
}

/* 确保热图单元格内容居中显示 */
.heatmap-cell {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    padding: 5px;
    box-sizing: border-box;
    color: #333;
}

/* 确保热图容器能够动态调整大小 */
.calorie-heatmap {
    margin-top: 15px;
    padding: 8px;
    box-sizing: border-box;
    overflow: hidden;
    max-width: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.heatmap-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 8px;
    margin-bottom: 10px;
    justify-items: center;
    align-items: center;
    width: 100%;
    max-width: 400px;
}

/* 当灰度值较深时，文字变为白色 */
.heatmap-cell[style*="rgba(150, 150, 150,"] {
    color: white;
}

.heatmap-cell[style*="rgba(100, 100, 100,"] {
    color: white;
}

.cell-date {
    font-size: 0.5rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 5px;
}

.cell-day {
    font-size: 1rem;
    font-weight: 500;
    margin-bottom: 5px;
}

.cell-value {
    font-size: 0.7rem;
    opacity: 0.8;
}

.heatmap-legend {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-top: 15px;
}

.legend-item {
    display: flex;
    align-items: center;
    gap: 5px;
    font-size: 0.6rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.legend-color {
    width: 15px;
    height: 15px;
    border: 1px solid #e5e5e5;
}

.legend-color.low {
    background-color: rgba(200, 200, 200, 0.3);
}

.legend-color.medium {
    background-color: rgba(150, 150, 150, 0.6);
}

.legend-color.high {
    background-color: rgba(100, 100, 100, 0.9);
}

/* 响应式设计 */
@media (max-width: 1200px) {
    header {
        padding: 20px 30px;
    }

    .header-top {
        flex-direction: column;
        gap: 20px;
        align-items: flex-start;
    }

    nav {
        padding: 0 30px;
    }

    nav ul li button {
        padding: 20px 30px;
    }

    main {
        padding: 30px;
    }

    .dashboard-grid {
        grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
        gap: 30px;
    }

    .calendar-day {
        padding: 20px;
    }
}

@media (max-width: 768px) {
    header h1 {
        font-size: 1rem;
    }

    .header-actions {
        flex-direction: column;
        gap: 15px;
        align-items: flex-start;
    }

    nav ul {
        overflow-x: auto;
        white-space: nowrap;
    }

    nav ul li button {
        padding: 15px 20px;
        font-size: 0.8rem;
    }

    main {
        padding: 20px;
    }

    .dashboard-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .dashboard-card {
        padding: 30px;
    }

    .timeline-item {
        flex-direction: column;
    }

    .timeline-date {
        width: 100%;
        text-align: left;
        padding-right: 0;
        margin-bottom: 20px;
    }

    .timeline-date::after {
        display: none;
    }

    .timeline-content {
        padding: 0;
    }

    .statistics-grid {
        grid-template-columns: 1fr;
        gap: 30px;
    }

    .form-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .modal-content {
        padding: 30px;
        margin: 15% auto;
    }

    .modal-content h2 {
        font-size: 1.2rem;
    }

    .calendar-grid {
        gap: 1px;
    }

    .calendar-day {
        padding: 15px;
        font-size: 0.8rem;
    }
}

/* Excel按钮 */
#excel-buttons {
    margin-top: 20px;
    display: flex;
    gap: 15px;
}

#export-excel, #import-excel {
    padding: clamp(4px, 0.8vw, 6px) clamp(8px, 1.5vw, 15px);
    border: 1px solid #000;
    background-color: transparent;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: clamp(0.5rem, 0.8vw, 0.6rem);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-left: -1px;
    white-space: nowrap;
    flex-shrink: 2;
    min-width: 80px;
    overflow: hidden;
    text-overflow: ellipsis;
}

#export-excel:first-child, #import-excel:first-child {
    margin-left: 0;
}

#export-excel:hover, #import-excel:hover {
    background-color: #000;
    color: #fff;
}

/* 保存内容展示 */
#save-content {
    margin: 30px 0;
    padding: 20px;
    background-color: #f9f9f9;
    border: 1px solid #e5e5e5;
}

.save-item {
    margin-bottom: 15px;
    padding-bottom: 10px;
    border-bottom: 1px solid #e5e5e5;
}

.save-item:last-child {
    margin-bottom: 0;
    padding-bottom: 0;
    border-bottom: none;
}

.save-item strong {
    text-transform: uppercase;
    letter-spacing: 1px;
    font-size: 0.9rem;
    margin-right: 10px;
}

/* 权限提示 */
.permission-alert {
    padding: 20px;
    background-color: #f9f9f9;
    border: 1px solid #e5e5e5;
    margin: 20px 0;
    text-align: center;
}

.permission-alert h4 {
    margin-bottom: 15px;
    font-size: 1.1rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.permission-alert button {
    margin: 0 10px;
}

/* Import Modal Styles */
.import-container {
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.file-upload-area {
    border: 2px dashed #000;
    padding: 40px;
    text-align: center;
    transition: all 0.3s ease;
}

.file-upload-area:hover {
    background-color: #f9f9f9;
}

.file-label {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 20px;
    cursor: pointer;
    padding: 20px;
    transition: all 0.3s ease;
}

.file-label:hover {
    opacity: 0.8;
}

.file-icon {
    font-size: 3rem;
}

.file-text {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

#file-name {
    font-size: 1rem;
    font-weight: 400;
    text-transform: uppercase;
    letter-spacing: 2px;
}

.file-hint {
    font-size: 0.8rem;
    opacity: 0.7;
}

.import-actions {
    display: flex;
    gap: 20px;
    justify-content: flex-end;
}

.primary-btn {
    padding: 12px 40px;
    border: 1px solid #000;
    background-color: #000;
    color: #fff;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 2px;
}

.primary-btn:hover {
    background-color: transparent;
    color: #000;
}

.secondary-btn {
    padding: 12px 40px;
    border: 1px solid #000;
    background-color: transparent;
    color: #000;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 2px;
}

.secondary-btn:hover {
    background-color: #000;
    color: #fff;
}

/* Loading Spinner */
.loading-spinner {
    width: 40px;
    height: 40px;
    border: 2px solid #f3f3f3;
    border-top: 2px solid #000;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto 15px;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Import Preview */
#import-preview {
    border: 1px solid #e5e5e5;
    padding: 20px;
    background-color: #f9f9f9;
}

#import-preview h3 {
    margin-bottom: 20px;
    font-size: 0.9rem;
    font-weight: 400;
    text-transform: uppercase;
    letter-spacing: 2px;
}

.preview-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 20px;
}

.preview-table th,
.preview-table td {
    padding: 10px;
    text-align: left;
    border-bottom: 1px solid #e5e5e5;
}

.preview-table th {
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    background-color: #f0f0f0;
}

.preview-table td {
    font-size: 0.9rem;
}

/* Error Message */
#error-message {
    padding: 15px;
    background-color: #fff0f0;
    border: 1px solid #ff0000;
    border-radius: 3px;
}

/* Success Message */
.success-message {
    padding: 15px;
    background-color: #f0fff0;
    border: 1px solid #00ff00;
    border-radius: 3px;
    margin: 10px 0;
}

/* Footer Styles */
.footer {
    background-color: #fff;
    border-top: 1px solid #000;
    padding: 15px 40px;
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: 90;
    display: flex;
    justify-content: center;
    align-items: center;
}

.footer-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    max-width: 1400px;
    flex-shrink: 1;
}

.footer-text {
    font-size: 0.5rem;
    font-weight: 400;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: #000;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    flex-shrink: 1;
    min-width: 0;
}

.back-to-top-btn {
    padding: 6px 10px;
    border: 1px solid #000;
    background-color: transparent;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 0.6rem;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    margin-left: 30px;
    min-width: 35px;
    text-align: center;
    flex-shrink: 0;
}

.back-to-top-btn:hover {
    background-color: #000;
    color: #fff;
}

/* Responsive Footer */
@media (max-width: 768px) {
    .footer {
        padding: 10px 20px;
    }
    
    .footer-content {
        flex-direction: row;
        gap: 15px;
        justify-content: space-between;
    }
    
    .footer-text {
        font-size: 0.4rem;
        letter-spacing: 1px;
        text-align: left;
        flex-shrink: 1;
    }
    
    .back-to-top-btn {
        margin-left: 0;
        padding: 5px 8px;
        font-size: 0.5rem;
        min-width: 30px;
    }
}

/* Extra small screens */
@media (max-width: 480px) {
    .footer {
        padding: 8px 15px;
    }
    
    .footer-content {
        gap: 10px;
    }
    
    .footer-text {
        font-size: 0.35rem;
        letter-spacing: 0.5px;
    }
    
    .back-to-top-btn {
        padding: 4px 6px;
        font-size: 0.45rem;
    }
}