:root {
    /* 颜色系统 */
    --primary: #10B981;
    --primary-hover: #059669;
    --primary-light: #D1FAE5;
    --secondary: #6B7280;
    --secondary-hover: #4B5563;
    --info: #3B82F6;
    --info-hover: #2563EB;
    --warning: #F59E0B;
    --warning-hover: #D97706;
    --danger: #EF4444;
    --danger-hover: #DC2626;
    --success: #10B981;
    --success-hover: #059669;
    --export: #8B5CF6;
    --export-hover: #7C3AED;

    /* 中性色 */
    --gray-50: #F9FAFB;
    --gray-100: #F3F4F6;
    --gray-200: #E5E7EB;
    --gray-300: #D1D5DB;
    --gray-400: #9CA3AF;
    --gray-500: #6B7280;
    --gray-600: #4B5563;
    --gray-700: #374151;
    --gray-800: #1F2937;
    --gray-900: #111827;

    /* 背景色 - 苹果风格 */
    --bg-body: #f5f7fa;
    --bg-card: rgba(255, 255, 255, 0.85);
    --bg-hover: rgba(255, 255, 255, 0.95);
    --bg-glass: rgba(255, 255, 255, 0.7);

    /* 文字色 */
    --text-primary: #111827;
    --text-secondary: #6B7280;
    --text-muted: #9CA3AF;

    /* 阴影 - 苹果风格 */
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.05), 0 1px 2px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.05), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 25px -5px rgba(0, 0, 0, 0.05), 0 8px 10px -6px rgba(0, 0, 0, 0.01);
    --shadow-xl: 0 20px 40px -5px rgba(0, 0, 0, 0.08), 0 10px 20px -5px rgba(0, 0, 0, 0.04);

    /* 圆角 */
    --radius-sm: 6px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;

    /* 过渡 */
    --transition: all 0.2s ease-in-out;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Helvetica Neue', Arial, sans-serif;
    margin: 20px;
    background: linear-gradient(135deg, #f5f7fa 0%, #e8ecf1 50%, #f5f7fa 100%);
    color: var(--text-primary);
    line-height: 1.6;
    font-size: 16px;
    min-height: 100vh;
}

h1 {
    color: var(--text-primary);
    text-align: center;
    font-size: 28px;
    font-weight: 700;
    margin: 24px 0;
    letter-spacing: -0.025em;
}

h2 {
    color: var(--text-primary);
    font-size: 20px;
    font-weight: 600;
    margin: 20px 0 12px 0;
    letter-spacing: -0.025em;
}

h3 {
    color: var(--text-primary);
    font-size: 18px;
    font-weight: 600;
    margin: 16px 0 10px 0;
}

table {
    width: 100%;
    border-collapse: collapse;
    margin: 16px 0;
    background-color: var(--bg-card);
    box-shadow: var(--shadow-md);
    border-radius: var(--radius-md);
    overflow: hidden;
}

/* 表格容器 - 用于移动端水平滚动 */
.table-container {
    width: 100%;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    margin: 16px 0;
}

.table-container table {
    margin: 0;
}

th,
td {
    padding: 14px 16px;
    text-align: left;
    border-bottom: 1px solid var(--gray-200);
    font-size: 14px;
    vertical-align: middle;
}

th {
    background-color: var(--primary);
    color: white;
    font-weight: 600;
    text-transform: uppercase;
    font-size: 12px;
    letter-spacing: 0.05em;
}

tr:nth-child(even) {
    background-color: var(--gray-50);
}

/* 桌面端的悬停效果 */
@media (hover: hover) and (pointer: fine) {
    tr:hover {
        background-color: var(--primary-light);
    }
}

/* 移动端的点击反馈 */
@media (hover: none) and (pointer: coarse) {
    tr:active {
        background-color: var(--primary-light);
    }

    tr {
        transition: background-color 0.1s ease;
    }
}

tr:last-child td {
    border-bottom: none;
}

.table-number {
    font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
    font-weight: 600;
    color: var(--gray-600);
}

.table-score {
    font-weight: 700;
    color: var(--primary);
    font-size: 15px;
}

.table-name {
    font-weight: 600;
    color: var(--text-primary);
}

.btn {
    padding: 8px 16px;
    text-decoration: none;
    color: white;
    background-color: var(--primary);
    border-radius: var(--radius-sm);
    margin: 4px;
    display: inline-block;
    font-size: 14px;
    text-align: center;
    font-weight: 500;
    transition: var(--transition);
    border: none;
    cursor: pointer;
    box-shadow: var(--shadow-sm);
    -webkit-tap-highlight-color: transparent;
    touch-action: manipulation;
    /* FIX: Improve touch responsiveness */
    position: relative;
    overflow: hidden;
}

.btn:hover {
    background-color: var(--primary-hover);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.btn:active {
    background-color: var(--primary-hover);
    transform: translateY(0) scale(0.98);
    box-shadow: var(--shadow-sm);
}

/* 移动端按钮优化 - 即时反馈 */
@media (hover: none) and (pointer: coarse) {
    .btn:active {
        background-color: var(--primary-hover);
        transform: scale(0.97);
    }
}

/* 按钮涟漪效果 - 优化性能 */
.btn::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    transform: translate(-50%, -50%);
    transition: width 0.25s ease-out, height 0.25s ease-out;
    pointer-events: none;
    will-change: width, height;
}

.btn:active::after {
    width: 300px;
    height: 300px;
}

.btn-danger {
    background-color: var(--danger);
    -webkit-tap-highlight-color: transparent;
    touch-action: manipulation;
}

.btn-danger:hover {
    background-color: var(--danger-hover);
}

.btn-danger:active {
    background-color: var(--danger-hover);
    transform: scale(0.98);
}

.btn-warning {
    background-color: var(--warning);
    -webkit-tap-highlight-color: transparent;
    touch-action: manipulation;
}

.btn-warning:hover {
    background-color: var(--warning-hover);
}

.btn-warning:active {
    background-color: var(--warning-hover);
    transform: scale(0.98);
}

.btn-info {
    background-color: var(--info);
    -webkit-tap-highlight-color: transparent;
    touch-action: manipulation;
}

.btn-info:hover {
    background-color: var(--info-hover);
}

.btn-info:active {
    background-color: var(--info-hover);
    transform: scale(0.98);
}

.btn-secondary {
    background-color: var(--secondary);
    -webkit-tap-highlight-color: transparent;
    touch-action: manipulation;
}

.btn-secondary:hover {
    background-color: var(--secondary-hover);
}

.btn-secondary:active {
    background-color: var(--secondary-hover);
    transform: scale(0.98);
}

.btn-secondary.active {
    background-color: var(--info);
}

.btn-export {
    background-color: var(--export);
    -webkit-tap-highlight-color: transparent;
    touch-action: manipulation;
}

.btn-export:hover {
    background-color: var(--export-hover);
}

.btn-small {
    padding: 6px 12px;
    font-size: 12px;
}

.form-container {
    background-color: var(--bg-card);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    padding: 24px;
    border-radius: var(--radius-lg);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.08);
    margin: 16px 0;
    border: 1px solid rgba(255, 255, 255, 0.6);
}

.form-group {
    margin-bottom: 16px;
}

.form-group label {
    display: block;
    margin-bottom: 6px;
    font-weight: 600;
    font-size: 14px;
    color: var(--text-primary);
}

.form-group input,
.form-group select {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid var(--gray-300);
    border-radius: var(--radius-sm);
    box-sizing: border-box;
    font-size: 14px;
    transition: var(--transition);
    background-color: var(--bg-body);
}

.form-group input:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--primary-light);
    background-color: var(--bg-card);
}

.form-group input::placeholder {
    color: var(--text-muted);
}

/* 表单验证样式 */
.form-group input.error,
.form-group select.error {
    border-color: var(--danger);
    background-color: #FEF2F2;
}

.form-group input.error:focus,
.form-group select.error:focus {
    box-shadow: 0 0 0 3px #FECACA;
}

.form-group input.success,
.form-group select.success {
    border-color: var(--success);
    background-color: #ECFDF5;
}

.form-group input.success:focus,
.form-group select.success:focus {
    box-shadow: 0 0 0 3px var(--primary-light);
}

.form-group .error-message {
    color: var(--danger);
    font-size: 12px;
    margin-top: 4px;
    display: none;
}

.form-group .error-message.show {
    display: block;
}

.form-group .success-message {
    color: var(--success);
    font-size: 12px;
    margin-top: 4px;
    display: none;
}

.form-group .success-message.show {
    display: block;
}

.form-group button {
    background-color: var(--primary);
    color: white;
    padding: 10px 20px;
    border: none;
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-size: 14px;
    font-weight: 600;
    transition: var(--transition);
    box-shadow: var(--shadow-sm);
}

.form-group button:hover {
    background-color: var(--primary-hover);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.back-link {
    margin-bottom: 12px;
    display: inline-block;
    color: var(--text-secondary);
    text-decoration: none;
    transition: var(--transition);
    font-size: 14px;
}

.back-link:hover {
    color: var(--primary);
}

.nav {
    text-align: center;
    margin-bottom: 16px;
    background-color: var(--bg-card);
    padding: 12px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    position: sticky;
    top: 20px;
    z-index: 999;
}

.nav-brand {
    display: inline-block;
    font-size: 18px;
    font-weight: 700;
    color: var(--primary);
    margin-right: 20px;
    vertical-align: middle;
}

.nav-items {
    display: inline-block;
    vertical-align: middle;
}

.nav a {
    margin: 0 6px;
    padding: 10px 16px;
    background-color: var(--primary);
    color: white;
    text-decoration: none;
    border-radius: var(--radius-sm);
    font-size: 14px;
    font-weight: 500;
    display: inline-block;
    transition: var(--transition);
    box-shadow: var(--shadow-sm);
    position: relative;
    -webkit-tap-highlight-color: transparent;
    touch-action: manipulation;
    /* FIX: Improve touch responsiveness */
}

.nav a:hover {
    background-color: var(--primary-hover);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.nav a:active {
    background-color: var(--primary-hover);
    transform: scale(0.98);
}

.nav a.active {
    background-color: var(--info);
}

.nav-badge {
    background-color: var(--danger);
    color: white;
    font-size: 11px;
    font-weight: 700;
    padding: 2px 6px;
    border-radius: 10px;
    margin-left: 6px;
    vertical-align: top;
}

.tabs {
    margin-bottom: 16px;
    background-color: var(--bg-card);
    padding: 8px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
}

.tab-button {
    padding: 10px 16px;
    background-color: var(--gray-100);
    border: none;
    cursor: pointer;
    margin-right: 4px;
    font-size: 14px;
    font-weight: 500;
    border-radius: var(--radius-sm);
    transition: var(--transition);
    color: var(--text-secondary);
}

.tab-button:hover {
    background-color: var(--gray-200);
    color: var(--text-primary);
}

.tab-button.active {
    background-color: var(--primary);
    color: white;
    box-shadow: var(--shadow-sm);
}

.tab-content {
    display: none;
}

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

.filter-form {
    margin-bottom: 16px;
}

/* 弹窗样式 */
.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(4px);
    opacity: 0;
    transition: opacity 0.15s ease-out;
    will-change: opacity;
    pointer-events: none;
    /* FIX: Allow clicks to pass through when hidden */
}

.modal.show {
    opacity: 1;
    pointer-events: auto;
    /* FIX: Capture clicks when shown */
    display: block;
    /* Ensure block display when shown */
}

/* 当弹窗显示时，设置为block */
.modal[style*="display: block"] {
    display: block !important;
    opacity: 1;
    pointer-events: auto;
}

.modal-content {
    background-color: var(--bg-card);
    margin: 15% auto;
    padding: 24px;
    border: 1px solid var(--gray-200);
    width: 80%;
    max-width: 320px;
    text-align: center;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    transform: scale(0.9) translateY(-20px);
    transition: transform 0.15s ease-out;
    will-change: transform;
}

.modal.show .modal-content,
.modal[style*="display: block"] .modal-content {
    transform: scale(1) translateY(0);
}

.close {
    color: var(--text-muted);
    float: right;
    font-size: 28px;
    font-weight: bold;
    cursor: pointer;
    transition: var(--transition);
    line-height: 1;
}

.close:hover {
    color: var(--text-primary);
}

.success {
    color: var(--success);
}

.error {
    color: var(--danger);
}

.export-section {
    margin: 16px 0;
    text-align: center;
    background-color: var(--bg-card);
    padding: 16px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
}

/* 时间线样式 */
.timeline {
    margin: 24px 0;
    position: relative;
    padding-left: 40px;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 14px;
    top: 0;
    bottom: 0;
    width: 3px;
    background: linear-gradient(180deg, var(--primary) 0%, var(--primary-light) 100%);
    border-radius: 3px;
}

.timeline-day {
    margin-bottom: 32px;
    position: relative;
}

.timeline-date {
    font-weight: 700;
    font-size: 15px;
    color: var(--text-primary);
    margin-bottom: 16px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-hover) 100%);
    color: white;
    padding: 8px 16px;
    border-radius: var(--radius-md);
    display: inline-block;
    box-shadow: var(--shadow-sm);
}

.timeline-date::before {
    content: '';
    position: absolute;
    left: -34px;
    top: 50%;
    transform: translateY(-50%);
    width: 14px;
    height: 14px;
    background-color: var(--primary);
    border: 3px solid var(--bg-body);
    border-radius: 50%;
    box-shadow: 0 0 0 4px var(--primary-light);
}

.timeline-records {
    margin-left: 8px;
}

.timeline-record {
    background-color: var(--bg-card);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-lg);
    padding: 20px;
    margin-bottom: 16px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    position: relative;
}

.timeline-record::before {
    content: '';
    position: absolute;
    left: -34px;
    top: 50%;
    transform: translateY(-50%);
    width: 10px;
    height: 10px;
    background-color: var(--gray-400);
    border: 2px solid var(--bg-body);
    border-radius: 50%;
    transition: var(--transition);
}

.timeline-record:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-2px);
}

.timeline-record:hover::before {
    background-color: var(--primary);
    transform: translateY(-50%) scale(1.2);
}

.timeline-record.clock-in {
    border-left: 4px solid var(--primary);
}

.timeline-record.clock-in::before {
    background-color: var(--primary);
}

.timeline-record.leave {
    border-left: 4px solid var(--warning);
}

.timeline-record.leave::before {
    background-color: var(--warning);
}

.record-info {
    flex: 1;
}

.record-header {
    display: flex;
    align-items: center;
    margin-bottom: 8px;
}

.record-type {
    font-weight: 700;
    margin-right: 12px;
    padding: 6px 12px;
    border-radius: var(--radius-sm);
    color: white;
    font-size: 13px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.clock-in .record-type {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-hover) 100%);
}

.leave .record-type {
    background: linear-gradient(135deg, var(--warning) 0%, var(--warning-hover) 100%);
}

.record-time {
    color: var(--text-secondary);
    font-size: 14px;
    font-weight: 500;
}

.record-detail {
    color: var(--text-muted);
    font-size: 13px;
    margin-top: 4px;
}

.record-actions {
    margin-left: 16px;
}

/* 空状态样式 */
.empty-state {
    text-align: center;
    padding: 48px 24px;
    background-color: var(--bg-card);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    margin: 16px 0;
}

.empty-state-icon {
    font-size: 48px;
    margin-bottom: 16px;
    opacity: 0.5;
}

.empty-state-title {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.empty-state-description {
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 16px;
}

/* 加载状态样式 */
.loading {
    text-align: center;
    padding: 40px 20px;
}

.spinner {
    border: 3px solid var(--gray-200);
    border-top: 3px solid var(--primary);
    border-radius: 50%;
    width: 40px;
    height: 40px;
    animation: spin 1s linear infinite;
    margin: 0 auto 16px;
}

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

    100% {
        transform: rotate(360deg);
    }
}

.loading-text {
    color: var(--text-secondary);
    font-size: 14px;
}

/* Skeleton骨架屏样式 */
.skeleton {
    background: linear-gradient(90deg, var(--gray-200) 25%, var(--gray-100) 50%, var(--gray-200) 75%);
    background-size: 200% 100%;
    animation: shimmer 1.5s infinite;
    border-radius: var(--radius-sm);
}

@keyframes shimmer {
    0% {
        background-position: 200% 0;
    }

    100% {
        background-position: -200% 0;
    }
}

.skeleton-text {
    height: 16px;
    margin-bottom: 8px;
}

.skeleton-text.short {
    width: 60%;
}

.skeleton-text.long {
    width: 100%;
}

.skeleton-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
}

.skeleton-button {
    height: 36px;
    width: 120px;
}

/* 响应式设计 */
@media screen and (max-width: 768px) {
    body {
        margin: 12px;
        font-size: 14px;
    }

    h1 {
        font-size: 22px;
        margin: 16px 0;
    }

    h2 {
        font-size: 18px;
        margin: 16px 0 10px 0;
    }

    h3 {
        font-size: 16px;
    }

    table {
        font-size: 12px;
    }

    th,
    td {
        padding: 10px 12px;
    }

    /* 移动端表格单元格优化 */
    td:last-child {
        padding: 10px 8px;
    }

    td .btn {
        margin: 2px;
        padding: 8px 12px;
    }

    .btn {
        padding: 6px 12px;
        font-size: 12px;
        margin: 3px;
    }

    .btn-small {
        padding: 5px 10px;
        font-size: 11px;
    }

    .nav {
        padding: 10px;
    }

    .nav a {
        padding: 8px 12px;
        margin: 0 4px;
        font-size: 12px;
    }

    .form-container {
        padding: 16px;
    }

    .form-group label {
        font-size: 13px;
    }

    .form-group input,
    .form-group select,
    .form-group button {
        font-size: 13px;
        padding: 8px 10px;
    }

    .tabs {
        padding: 6px;
    }

    .tab-button {
        padding: 8px 12px;
        font-size: 12px;
        margin-right: 3px;
    }

    .modal-content {
        width: 90%;
        padding: 16px;
    }

    .close {
        font-size: 24px;
    }

    .export-section {
        padding: 12px;
    }

    .timeline {
        padding-left: 16px;
        margin: 16px 0;
    }

    .timeline-record {
        padding: 12px;
        flex-direction: column;
        align-items: flex-start;
    }

    .record-actions {
        margin-left: 0;
        margin-top: 12px;
        width: 100%;
    }

    /* 移动端表格容器优化 */
    .table-container {
        margin: 12px 0;
        border-radius: 0;
    }

    .table-container::-webkit-scrollbar {
        height: 6px;
    }

    .table-container::-webkit-scrollbar-track {
        background: var(--gray-100);
    }

    .table-container::-webkit-scrollbar-thumb {
        background: var(--gray-400);
        border-radius: 3px;
    }

    .table-container::-webkit-scrollbar-thumb:hover {
        background: var(--gray-500);
    }
}

@media screen and (max-width: 480px) {
    body {
        margin: 8px;
        font-size: 13px;
    }

    h1 {
        font-size: 20px;
        margin: 12px 0;
    }

    h2 {
        font-size: 16px;
        margin: 12px 0 8px 0;
    }

    h3 {
        font-size: 15px;
    }

    table {
        font-size: 11px;
    }

    th,
    td {
        padding: 8px 10px;
    }

    .btn {
        padding: 5px 10px;
        font-size: 11px;
        margin: 2px;
    }

    .btn-small {
        padding: 4px 8px;
        font-size: 10px;
    }

    .nav {
        padding: 8px;
    }

    .nav {
        display: flex;
        flex-wrap: wrap;
        justify-content: center;
    }

    .nav a {
        padding: 6px 10px;
        margin: 3px;
        font-size: 11px;
    }

    .form-container {
        padding: 12px;
    }

    .form-group label {
        font-size: 12px;
    }

    .form-group input,
    .form-group select,
    .form-group button {
        font-size: 12px;
        padding: 7px 9px;
    }

    .tabs {
        padding: 4px;
    }

    .tab-button {
        padding: 6px 10px;
        font-size: 11px;
        margin-right: 2px;
    }

    .modal-content {
        width: 95%;
        padding: 12px;
    }

    .close {
        font-size: 22px;
    }

    .export-section {
        padding: 10px;
    }

    .timeline {
        padding-left: 12px;
        margin: 12px 0;
    }

    .timeline-date {
        padding: 5px 10px;
        font-size: 13px;
    }

    .timeline-record {
        padding: 10px;
    }
}

/* 今日概览样式 */
.today-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 16px;
    margin-top: 16px;
}

.today-stat-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 16px;
    background-color: var(--gray-50);
    border-radius: var(--radius-md);
    transition: var(--transition);
}

.today-stat-item:hover {
    background-color: var(--gray-100);
    transform: translateY(-2px);
}

.today-stat-icon {
    font-size: 32px;
}

.today-stat-content {
    flex: 1;
}

.today-stat-value {
    font-size: 24px;
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1.2;
}

.today-stat-label {
    font-size: 12px;
    color: var(--text-secondary);
    font-weight: 500;
    margin-top: 4px;
}

.score-form {
    display: inline-block;
    margin: 0 4px;
}

.score-input {
    width: 50px;
    padding: 6px 8px;
    margin-right: 4px;
    font-size: 14px;
    border: 1px solid var(--gray-300);
    border-radius: var(--radius-sm);
    text-align: center;
}