/* 基本样式重置 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, #0f0f23 0%, #1a1a2e 50%, #16213e 100%);
    color: #ffffff;
    line-height: 1.6;
    min-height: 100vh;
    overflow-x: hidden;
}

/* 容器样式 */
.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 20px;
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 15px;
    min-height: calc(100vh - 40px);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
}

/* 登录页面样式 */
.login-container {
    max-width: 400px;
    margin: 100px auto;
    padding: 30px;
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 15px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
}

.login-container h2 {
    text-align: center;
    margin-bottom: 25px;
    color: #00d4ff;
    font-weight: 600;
    background: linear-gradient(45deg, #00d4ff, #0099ff);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* 表单样式 */
.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: #b0b0b0;
    font-size: 14px;
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 10px;
    font-size: 16px;
    background: rgba(255, 255, 255, 0.05);
    color: #ffffff;
    transition: all 0.3s ease;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: #00d4ff;
    box-shadow: 0 0 0 3px rgba(0, 212, 255, 0.1);
}

.form-group button {
    background: linear-gradient(45deg, #00d4ff, #0099ff);
    color: white;
    padding: 12px 20px;
    border: none;
    border-radius: 10px;
    cursor: pointer;
    font-size: 16px;
    font-weight: 500;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(0, 212, 255, 0.3);
}

.form-group button:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 212, 255, 0.5);
}

/* 消息样式 */
#message {
    margin-top: 15px;
    padding: 12px 16px;
    border-radius: 10px;
    font-weight: 500;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

#message.error {
    background: rgba(255, 59, 48, 0.1);
    color: #ff6b6b;
    border-color: rgba(255, 107, 107, 0.3);
}

#message.success {
    background: rgba(56, 142, 60, 0.1);
    color: #4ecdc4;
    border-color: rgba(78, 205, 196, 0.3);
}

/* 导航栏样式 */
.header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    padding: 16px 24px;
    border-radius: 12px;
    margin-bottom: 20px;
}

.header-left h1 {
    font-size: 28px;
    font-weight: 600;
    color: #00d4ff;
    background: linear-gradient(45deg, #00d4ff, #0099ff);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.header-right {
    display: flex;
    align-items: center;
    gap: 16px;
}

.header-right span {
    font-weight: 500;
    color: #b0b0b0;
}

.header-right a {
    color: #00d4ff;
    text-decoration: none;
    padding: 8px 16px;
    border-radius: 8px;
    font-weight: 500;
    transition: all 0.3s ease;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.header-right a:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: #00d4ff;
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(0, 212, 255, 0.3);
}

.logout-btn {
    background: rgba(255, 59, 48, 0.1) !important;
    color: #ff6b6b !important;
    border-color: rgba(255, 107, 107, 0.3) !important;
}

.logout-btn:hover {
    background: rgba(255, 59, 48, 0.2) !important;
    border-color: #ff6b6b !important;
    box-shadow: 0 4px 15px rgba(255, 107, 107, 0.3) !important;
}

.admin-btn {
    background: rgba(0, 212, 255, 0.1) !important;
    color: #00d4ff !important;
    border-color: rgba(0, 212, 255, 0.3) !important;
}

.admin-btn:hover {
    background: rgba(0, 212, 255, 0.2) !important;
    border-color: #00d4ff !important;
    box-shadow: 0 4px 15px rgba(0, 212, 255, 0.3) !important;
}

.back-btn {
    background: rgba(255, 149, 0, 0.1) !important;
    color: #ff9500 !important;
    border-color: rgba(255, 149, 0, 0.3) !important;
}

.back-btn:hover {
    background: rgba(255, 149, 0, 0.2) !important;
    border-color: #ff9500 !important;
    box-shadow: 0 4px 15px rgba(255, 149, 0, 0.3) !important;
}

/* 日历控制区样式 */
.calendar-controls {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    padding: 20px 24px;
    border-radius: 12px;
    margin-bottom: 20px;
    gap: 16px;
    flex-wrap: wrap;
}

.calendar-controls button {
    background: linear-gradient(45deg, #00d4ff, #0099ff);
    color: white;
    border: none;
    padding: 10px 18px;
    border-radius: 12px;
    cursor: pointer;
    font-size: 16px;
    font-weight: 500;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(0, 212, 255, 0.3);
}

.calendar-controls button:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 212, 255, 0.5);
}

.calendar-controls h2 {
    margin: 0;
    font-size: 24px;
    font-weight: 600;
    color: #00d4ff;
    min-width: 200px;
    text-align: center;
}

/* 日历网格样式 */
.calendar-container {
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    padding: 20px;
    border-radius: 12px;
    margin-bottom: 20px;
}

.calendar-grid {
    display: grid;
    grid-template-columns: 80px repeat(7, 1fr);
    gap: 2px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 8px;
    overflow: hidden;
}

.weekday {
    background: rgba(255, 255, 255, 0.1);
    padding: 16px 8px;
    text-align: center;
    font-weight: 600;
    font-size: 14px;
    color: #00d4ff;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    border-right: 1px solid rgba(255, 255, 255, 0.1);
}

.week-number {
    background: rgba(255, 255, 255, 0.05);
    padding: 16px 8px;
    text-align: center;
    font-weight: 500;
    font-size: 13px;
    color: #8e8e93;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    border-right: 1px solid rgba(255, 255, 255, 0.1);
}

.day {
    background: rgba(255, 255, 255, 0.05);
    padding: 12px 8px;
    min-height: 120px;
    position: relative;
    cursor: pointer;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    border-right: 1px solid rgba(255, 255, 255, 0.1);
    transition: all 0.3s ease;
}

.day:hover {
    background: rgba(255, 255, 255, 0.1);
}

.day.other-month {
    background: rgba(255, 255, 255, 0.02);
    color: #666;
}

.day.today {
    background: rgba(0, 212, 255, 0.1);
    border: 1px solid #00d4ff;
    box-shadow: 0 0 15px rgba(0, 212, 255, 0.2);
}

.day-number {
    font-weight: 600;
    font-size: 16px;
    margin-bottom: 8px;
    color: #ffffff;
}

.lunar-date {
    font-size: 12px;
    color: #8e8e93;
    margin-bottom: 6px;
}

.holiday {
    color: #ff6b6b !important;
    font-weight: 500;
}

/* 日程样式 */
.events-container {
    margin-top: 8px;
}

.event {
    background: linear-gradient(45deg, #00d4ff, #0099ff);
    color: white;
    padding: 6px 8px;
    border-radius: 8px;
    margin-bottom: 4px;
    font-size: 13px;
    cursor: pointer;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    transition: all 0.3s ease;
    box-shadow: 0 2px 4px rgba(0, 212, 255, 0.3);
}

.event:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 8px rgba(0, 212, 255, 0.5);
}

/* 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, 0.8);
    backdrop-filter: blur(10px);
}

.modal-content {
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    margin: 10% auto;
    padding: 30px;
    width: 90%;
    max-width: 550px;
    border-radius: 15px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    animation: modalSlideIn 0.3s ease-out;
    color: #ffffff;
}

@keyframes modalSlideIn {
    from {
        opacity: 0;
        transform: translateY(-50px) scale(0.9);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.close {
    color: #8e8e93;
    float: right;
    font-size: 32px;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.3s ease;
    line-height: 1;
}

.close:hover,
.close:focus {
    color: #00d4ff;
    transform: rotate(90deg);
    text-decoration: none;
    cursor: pointer;
}

/* 管理员页面样式 */
.admin-section {
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    padding: 20px;
    border-radius: 12px;
    margin-bottom: 20px;
}

.admin-section h2 {
    margin-bottom: 20px;
    color: #00d4ff;
    background: linear-gradient(45deg, #00d4ff, #0099ff);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.admin-section h3 {
    margin-bottom: 15px;
    color: #b0b0b0;
}

.add-user-form {
    background: rgba(255, 255, 255, 0.05);
    padding: 20px;
    border-radius: 12px;
    margin-bottom: 20px;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.user-list {
    margin-top: 20px;
}

/* 表格样式 */
#users-table {
    width: 100%;
    border-collapse: collapse;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 12px;
    overflow: hidden;
}

#users-table th,
#users-table td {
    padding: 12px;
    text-align: left;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    color: #ffffff;
}

#users-table th {
    background: rgba(255, 255, 255, 0.1);
    font-weight: bold;
    color: #00d4ff;
}

#users-table tr:hover {
    background: rgba(255, 255, 255, 0.1);
}

.delete-user-btn {
    background: linear-gradient(45deg, #ff6b6b, #ff3b30);
    color: white;
    border: none;
    padding: 6px 12px;
    border-radius: 8px;
    cursor: pointer;
    font-size: 14px;
    transition: all 0.3s ease;
}

.delete-user-btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(255, 107, 107, 0.4);
}

/* 响应式设计 - 平板设备 */
@media (max-width: 1024px) {
    .calendar-grid {
        grid-template-columns: 60px repeat(7, 1fr);
    }
    
    .week-number {
        font-size: 11px;
        padding: 12px 4px;
    }
    
    .day {
        min-height: 100px;
        padding: 10px 6px;
    }
    
    .day-number {
        font-size: 14px;
    }
    
    .lunar-date {
        font-size: 11px;
    }
    
    .event {
        font-size: 12px;
        padding: 4px 6px;
    }
}

/* 响应式设计 - 手机设备 */
@media (max-width: 768px) {
    .header {
        flex-direction: column;
        gap: 12px;
        padding: 16px;
    }
    
    .header-left h1 {
        font-size: 24px;
    }
    
    .calendar-controls {
        flex-direction: column;
        gap: 12px;
        padding: 16px;
        align-items: stretch;
    }
    
    .calendar-controls button {
        width: 100%;
    }
    
    .calendar-grid {
        grid-template-columns: 50px repeat(7, 1fr);
    }
    
    .weekday {
        padding: 12px 4px;
        font-size: 12px;
    }
    
    .week-number {
        display: none;
    }
    
    .day {
        min-height: 80px;
        padding: 8px 4px;
    }
    
    .day-number {
        font-size: 14px;
        margin-bottom: 4px;
    }
    
    .lunar-date {
        font-size: 11px;
        margin-bottom: 4px;
    }
    
    .holiday-name {
        font-size: 10px !important;
    }
    
    .event {
        font-size: 11px;
        padding: 3px 5px;
        margin-bottom: 2px;
    }
    
    .modal-content {
        margin: 5% auto;
        padding: 20px;
        width: 95%;
        max-width: 400px;
    }
    
    #users-table {
        font-size: 14px;
    }
    
    #users-table th,
    #users-table td {
        padding: 8px;
    }
}

/* 响应式设计 - 小屏手机 */
@media (max-width: 480px) {
    .calendar-grid {
        grid-template-columns: repeat(7, 1fr);
    }
    
    .day {
        min-height: 70px;
        padding: 6px 3px;
    }
    
    .day-number {
        font-size: 13px;
    }
    
    .lunar-date {
        font-size: 9px;
    }
    
    .event {
        font-size: 10px;
        padding: 2px 4px;
    }
    
    .modal-content {
        margin: 2% auto;
        padding: 16px;
    }
}

/* 响应式设计 - 平板设备 */
@media (max-width: 1024px) {
    .calendar-grid {
        grid-template-columns: 60px repeat(7, 1fr);
    }
    
    .week-number {
        font-size: 11px;
        padding: 12px 4px;
    }
    
    .day {
        min-height: 100px;
        padding: 10px 6px;
    }
    
    .day-number {
        font-size: 14px;
    }
    
    .lunar-date {
        font-size: 11px;
    }
    
    .event {
        font-size: 12px;
        padding: 4px 6px;
    }
}

/* 响应式设计 - 手机设备 */
@media (max-width: 768px) {
    .header {
        flex-direction: column;
        gap: 12px;
        padding: 16px;
    }
    
    .header-left h1 {
        font-size: 24px;
    }
    
    .calendar-controls {
        flex-direction: column;
        gap: 12px;
        padding: 16px;
        align-items: stretch;
    }
    
    .calendar-controls button {
        width: 100%;
    }
    
    .calendar-grid {
        grid-template-columns: 50px repeat(7, 1fr);
    }
    
    .weekday {
        padding: 12px 4px;
        font-size: 12px;
    }
    
    .week-number {
        display: none;
    }
    
    .day {
        min-height: 80px;
        padding: 8px 4px;
    }
    
    .day-number {
        font-size: 14px;
        margin-bottom: 4px;
    }
    
    .lunar-date {
        font-size: 10px;
        margin-bottom: 4px;
    }
    
    .holiday-name {
        font-size: 10px !important;
    }
    
    .event {
        font-size: 11px;
        padding: 3px 5px;
        margin-bottom: 2px;
    }
    
    .modal-content {
        margin: 5% auto;
        padding: 20px;
        width: 95%;
        max-width: 400px;
    }
    
    #users-table {
        font-size: 14px;
    }
    
    #users-table th,
    #users-table td {
        padding: 8px;
    }
}

/* 响应式设计 - 小屏手机 */
@media (max-width: 480px) {
    .calendar-grid {
        grid-template-columns: repeat(7, 1fr);
    }
    
    .day {
        min-height: 70px;
        padding: 6px 3px;
    }
    
    .day-number {
        font-size: 13px;
    }
    
    .lunar-date {
        font-size: 9px;
    }
    
    .event {
        font-size: 10px;
        padding: 2px 4px;
    }
    
    .modal-content {
        margin: 2% auto;
        padding: 16px;
    }
}