/* 通用样式 */

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: transparent;
}

::-webkit-scrollbar-thumb {
    background: var(--gray-300);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--gray-400);
}

/* CSS Reset */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: 1.5;
    color: var(--text-primary);
    background-color: var(--bg-secondary);
}

/* 链接 */
a {
    color: var(--primary-color);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--primary-hover);
}

/* 按钮基础样式 */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-2);
    padding: var(--spacing-3) var(--spacing-5);
    font-size: var(--font-size-sm);
    font-weight: 600; /* Slightly bolder for better readability */
    border: 1px solid transparent;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-base);
    white-space: nowrap;
    
    /* 浏览器兼容性与交互优化 */
    -webkit-appearance: none;
    appearance: none;
    -webkit-user-select: none;
    user-select: none;
    touch-action: manipulation;
    text-decoration: none;
    line-height: 1.25;
}

/* 微交互：点击按压效果 */
.btn:active:not(:disabled) {
    transform: scale(0.98);
    transition: transform 0.1s var(--ease-out);
}

/* 物理质感悬停 */
.btn:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
    transition: all 0.2s cubic-bezier(0.2, 0.8, 0.2, 1);
}

.btn:focus-visible {
    outline: none;
    box-shadow: 0 0 0 2px var(--bg-primary), 0 0 0 4px var(--primary-color);
}

/* 按钮加载状态 */
.btn.loading {
    color: transparent !important;
    pointer-events: none;
    position: relative;
}

.btn.loading::after {
    content: '';
    position: absolute;
    width: 1.2em;
    height: 1.2em;
    top: 50%;
    left: 50%;
    margin-top: -0.6em;
    margin-left: -0.6em;
    border: 2px solid currentColor;
    border-right-color: transparent;
    border-radius: 50%;
    animation: btn-spin 0.6s linear infinite;
    color: var(--text-primary); /* Default spinner color */
}

/* Primary btn spinner color should be white/inverse */
.btn-primary.loading::after,
.btn-danger.loading::after {
    color: var(--text-inverse);
}

@keyframes btn-spin {
    to { transform: rotate(360deg); }
}

.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    box-shadow: none;
    transform: none !important;
}

.btn-primary {
    color: var(--text-inverse);
    background: var(--gradient);
    border: none;
    box-shadow: 0 4px 6px -1px rgba(59, 130, 246, 0.25), 0 2px 4px -1px rgba(59, 130, 246, 0.15);
    position: relative;
    overflow: hidden;
}

/* Shine effect on hover for primary buttons */
.btn-primary::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(rgba(255,255,255,0.1), rgba(255,255,255,0));
    opacity: 0;
    transition: opacity 0.2s;
}

.btn-primary:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: 0 10px 15px -3px rgba(59, 130, 246, 0.4), 0 4px 6px -2px rgba(59, 130, 246, 0.2);
    filter: brightness(1.05);
}

.btn-primary:hover:not(:disabled)::after {
    opacity: 1;
}

.btn-primary:active:not(:disabled) {
    transform: translateY(0);
    box-shadow: 0 2px 4px -1px rgba(59, 130, 246, 0.2), 0 1px 2px -1px rgba(59, 130, 246, 0.1);
    filter: brightness(0.95);
}

.btn-secondary {
    color: var(--text-secondary);
    background-color: var(--bg-primary);
    border: 1px solid var(--border-dark);
    box-shadow: var(--shadow-sm);
}

.btn-secondary:hover:not(:disabled) {
    background-color: var(--bg-hover);
    border-color: var(--text-disabled);
    color: var(--text-primary);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.btn-secondary:active:not(:disabled) {
    background-color: var(--bg-tertiary);
    transform: translateY(0);
    box-shadow: var(--shadow-sm);
}

.btn-danger {
    color: var(--text-inverse);
    background-color: var(--danger-color);
    box-shadow: 0 4px 6px -1px rgba(239, 68, 68, 0.25);
}

.btn-danger:hover:not(:disabled) {
    background-color: #dc2626;
    transform: translateY(-2px);
    box-shadow: 0 10px 15px -3px rgba(239, 68, 68, 0.4);
}

.btn-danger:active:not(:disabled) {
    background-color: #b91c1c;
    transform: translateY(0);
    box-shadow: 0 2px 4px -1px rgba(239, 68, 68, 0.2);
}

/* Ghost Button (Transparent) */
.btn-ghost {
    color: var(--text-secondary);
    background-color: transparent;
    border-color: transparent;
    box-shadow: none;
}

.btn-ghost:hover:not(:disabled) {
    background-color: var(--bg-tertiary);
    color: var(--text-primary);
}

.btn-ghost:active:not(:disabled) {
    background-color: var(--border-color);
}

.btn-sm {
    padding: var(--spacing-1) var(--spacing-3);
    font-size: var(--font-size-xs);
    height: 32px; /* Fixed height for consistency */
}

.btn-lg {
    padding: var(--spacing-4) var(--spacing-8);
    font-size: var(--font-size-base);
    height: 56px;
}

/* Icon Button */
.btn-icon {
    padding: var(--spacing-2);
    border-radius: var(--radius-full);
    aspect-ratio: 1;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

/* 输入框 */
.input {
    width: 100%;
    padding: var(--spacing-3) var(--spacing-4);
    font-size: var(--font-size-sm);
    line-height: 1.5;
    color: var(--text-primary);
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color); /* Lighter default border */
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
    box-shadow: var(--shadow-sm); /* Subtle shadow */
}

.input:hover {
    border-color: var(--border-dark);
}

.input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15), var(--shadow-sm); /* Use new primary color */
}

/* 卡片 */
.card {
    background-color: var(--bg-primary);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm); /* Start with smaller shadow */
    overflow: hidden;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    border: 1px solid var(--border-color); /* Use variable */
}

/* 卡片微交互 */
.card {
    /* ... existing styles ... */
    transition: all 0.3s var(--ease-in-out);
}

.card:hover {
    transform: translateY(-4px) scale(1.005);
    box-shadow: var(--shadow-xl);
    border-color: var(--primary-color); /* Highlight border on hover */
}

.card:active {
    transform: scale(0.995);
    transition: transform 0.1s var(--ease-out);
}

.card-header {
    padding: var(--spacing-5) var(--spacing-6);
    border-bottom: 1px solid var(--border-color);
}

.card-body {
    padding: var(--spacing-6);
}

.card-footer {
    padding: var(--spacing-5) var(--spacing-6);
    background-color: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
}

/* 徽章 */
.badge {
    display: inline-flex;
    align-items: center;
    padding: var(--spacing-1) var(--spacing-3);
    font-size: var(--font-size-xs);
    font-weight: 600; /* Slightly bolder */
    border-radius: var(--radius-full);
    line-height: 1;
}

.badge-primary {
    color: var(--primary-color);
    background-color: var(--primary-light);
}

.badge-success {
    color: var(--success-text);
    background-color: var(--success-bg);
}

.badge-warning {
    color: var(--warning-text);
    background-color: var(--warning-bg);
}

.badge-danger {
    color: var(--danger-text);
    background-color: var(--danger-bg);
}

.badge-info {
    color: var(--info-text);
    background-color: var(--info-bg);
}

/* 加载动画 */
.loading {
    display: inline-block;
    width: 1em;
    height: 1em;
    border: 2px solid var(--border-dark);
    border-top-color: var(--primary-color);
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

/* Ripple Effect (通用涟漪效果) */
.ripple-effect {
    position: relative;
    overflow: hidden;
}

.ripple-effect::after {
    content: "";
    display: block;
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    pointer-events: none;
    background-image: radial-gradient(circle, #fff 10%, transparent 10.01%);
    background-repeat: no-repeat;
    background-position: 50%;
    transform: scale(10, 10);
    opacity: 0;
    transition: transform .5s, opacity 1s;
}

.ripple-effect:active::after {
    transform: scale(0, 0);
    opacity: .3;
    transition: 0s;
}

/* 工具类 */
.text-center {
    text-align: center;
}

.text-right {
    text-align: right;
}

.text-left {
    text-align: left;
}

.mt-2 {
    margin-top: var(--spacing-2);
}

.mt-4 {
    margin-top: var(--spacing-4);
}

.mt-6 {
    margin-top: var(--spacing-6);
}

.mb-2 {
    margin-bottom: var(--spacing-2);
}

.mb-4 {
    margin-bottom: var(--spacing-4);
}

.mb-6 {
    margin-bottom: var(--spacing-6);
}

.flex {
    display: flex;
}

.flex-col {
    flex-direction: column;
}

.items-center {
    align-items: center;
}

.justify-center {
    justify-content: center;
}

.justify-between {
    justify-content: space-between;
}

.gap-2 {
    gap: var(--spacing-2);
}

.gap-3 {
    gap: var(--spacing-3);
}

.gap-4 {
    gap: var(--spacing-4);
}

.gap-6 {
    gap: 24px;
}

.justify-end {
    justify-content: flex-end;
}

.hidden {
    display: none;
}

.block {
    display: block;
}

.inline-block {
    display: inline-block;
}

/* Toast 通知 */
.toast-container {
    position: fixed;
    top: var(--spacing-6);
    right: var(--spacing-6);
    z-index: var(--z-toast);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-3);
    pointer-events: none;
}

.toast {
    min-width: 300px;
    max-width: 400px;
    padding: var(--spacing-4) var(--spacing-5);
    background-color: var(--bg-primary);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    transform: translateX(100%);
    transition: all 0.4s var(--ease-spring);
    pointer-events: auto;
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-3);
    border: 1px solid var(--border-color);
    opacity: 0;
}

.toast-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    margin-top: 2px;
}

.toast-message {
    font-size: var(--font-size-sm);
    color: var(--text-primary);
    line-height: 1.5;
}

.toast.show {
    transform: translateX(0);
    opacity: 1;
}

.toast.removing {
    transform: translateX(100%);
    opacity: 0;
    margin-top: -60px; /* Collapse space */
}

.toast-success {
    border-left: 4px solid var(--success-color);
}

.toast-error {
    border-left: 4px solid var(--danger-color);
}

.toast-warning {
    border-left: 4px solid var(--warning-color);
}

.toast-info {
    border-left: 4px solid var(--info-color);
}

/* Custom Checkbox */
.checkbox-custom {
    appearance: none;
    -webkit-appearance: none;
    width: 1.25rem;
    height: 1.25rem;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    background-color: var(--bg-primary);
    display: inline-grid;
    place-content: center;
    cursor: pointer;
    transition: all 0.2s ease;
}

.checkbox-custom::before {
    content: "";
    width: 0.65em;
    height: 0.65em;
    transform: scale(0);
    transition: 120ms transform ease-in-out;
    box-shadow: inset 1em 1em white;
    transform-origin: center;
    clip-path: polygon(14% 44%, 0 65%, 50% 100%, 100% 16%, 80% 0%, 43% 62%);
}

.checkbox-custom:checked {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
}

.checkbox-custom:checked::before {
    transform: scale(1);
}

.checkbox-custom:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

/* Custom Radio */
.radio-custom {
    appearance: none;
    -webkit-appearance: none;
    width: 1.25rem;
    height: 1.25rem;
    border: 1px solid var(--border-color);
    border-radius: 50%;
    background-color: var(--bg-primary);
    display: grid;
    place-content: center;
    cursor: pointer;
    transition: all 0.2s ease;
}

.radio-custom::before {
    content: "";
    width: 0.65em;
    height: 0.65em;
    border-radius: 50%;
    transform: scale(0);
    transition: 120ms transform ease-in-out;
    box-shadow: inset 1em 1em var(--primary-color);
}

.radio-custom:checked {
    border-color: var(--primary-color);
}

.radio-custom:checked::before {
    transform: scale(1);
}

/* Custom Select */
.select-custom {
    appearance: none;
    -webkit-appearance: none;
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 20 20'%3e%3cpath stroke='%236b7280' stroke-linecap='round' stroke-linejoin='round' stroke-width='1.5' d='M6 8l4 4 4-4'/%3e%3c/svg%3e");
    background-position: right 0.5rem center;
    background-repeat: no-repeat;
    background-size: 1.5em 1.5em;
    padding-right: 2.5rem;
}

/* Toggle Switch */
.toggle-switch {
    position: relative;
    display: inline-block;
    width: 48px;
    height: 26px;
    flex-shrink: 0;
}

.toggle-switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.toggle-slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: var(--gray-300);
    border-radius: 34px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.toggle-slider::before {
    content: '';
    position: absolute;
    height: 20px;
    width: 20px;
    left: 3px;
    bottom: 3px;
    background-color: white;
    border-radius: 50%;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.toggle-switch input:checked + .toggle-slider {
    background: var(--gradient);
}

.toggle-switch input:checked + .toggle-slider::before {
    transform: translateX(22px);
}

.toggle-switch:hover .toggle-slider {
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

/* Modal 模态框 */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: var(--z-modal);
    overflow-y: hidden; /* 防止背景滚动 */
    opacity: 0;
    transition: opacity 0.3s var(--ease-in-out);
    background-color: rgba(0, 0, 0, 0.65); /* 更深的背景遮罩 */
    backdrop-filter: blur(8px); /* 增强毛玻璃效果 */
}

.modal.show {
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 1;
}

/* Modal Transition Classes for AnimationUtils */
.modal.fade-enter {
    opacity: 0;
    display: flex;
}
.modal.fade-enter-active {
    opacity: 1;
    transition: opacity 0.3s var(--ease-out);
}
.modal.fade-leave {
    opacity: 1;
}
.modal.fade-leave-active {
    opacity: 0;
    transition: opacity 0.2s var(--ease-in);
}

/* 移除独立的 backdrop 元素，直接在 .modal 上实现背景效果，或者保留兼容性但弱化 */
.modal-backdrop {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    /* 背景色和模糊已移至 .modal 以确保统一动画 */
    z-index: -1;
}

.modal-content {
    position: relative;
    width: 90%;
    max-width: 600px;
    max-height: 90vh; /* 限制最大高度 */
    overflow-y: auto; /* 内部滚动 */
    background-color: var(--bg-primary);
    background-image: linear-gradient(to bottom, var(--bg-primary), var(--bg-secondary));
    border-radius: var(--radius-2xl); /* 更大的圆角 */
    box-shadow:
        0 20px 25px -5px rgba(0, 0, 0, 0.1),
        0 10px 10px -5px rgba(0, 0, 0, 0.04),
        0 0 0 1px rgba(0, 0, 0, 0.05); /* 多重阴影增加深度 */
    z-index: var(--z-modal);
    transform: scale(0.95) translateY(10px); /* 初始状态添加位移 */
    opacity: 0;
    transition: transform 0.4s var(--ease-spring),
                opacity 0.3s var(--ease-out);
}

.modal.show .modal-content,
.modal.fade-enter-active .modal-content {
    transform: scale(1) translateY(0);
    opacity: 1;
}

.modal-header {
    padding: var(--spacing-6) var(--spacing-8);
    display: flex;
    align-items: center;
    justify-content: space-between;
    /* 去除边框，使用空白分隔或极淡的渐变 */
    border-bottom: 1px solid transparent;
}

.modal-header h3 {
    margin: 0;
    font-size: var(--font-size-xl);
    font-weight: 600;
    color: var(--text-primary);
    letter-spacing: -0.01em;
}

.modal-body {
    padding: var(--spacing-4) var(--spacing-8) var(--spacing-8);
    color: var(--text-secondary);
    line-height: 1.6;
}

.modal-footer {
    padding: var(--spacing-6) var(--spacing-8);
    /* border-top: 1px solid var(--border-light); 移除硬边框 */
    display: flex;
    justify-content: flex-end;
    gap: var(--spacing-4);
    background-color: transparent; /* 保持背景连贯 */
    /* border-bottom-left-radius: var(--radius-2xl); */
    /* border-bottom-right-radius: var(--radius-2xl); */
}

/* 模态框关闭按钮 */
.modal-close-btn {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-tertiary);
    cursor: pointer;
    transition: all 0.2s ease;
    border: none;
    background: transparent;
    font-size: 1.25rem;
    line-height: 1;
}

.modal-close-btn:hover {
    background-color: var(--bg-tertiary);
    color: var(--text-primary);
    transform: rotate(90deg);
}

/* ==================== Glassmorphism Utilities (Modern Visuals) ==================== */
.glass {
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid var(--glass-border);
    box-shadow: var(--glass-shadow);
}

.glass-dark {
    /* 实际上由 CSS 变量自动处理，这里保留作为显式调用或特定覆盖 */
    background: rgba(30, 41, 59, 0.7);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

/* 应用于模态框 */
.modal-content.glass-effect {
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    border: 1px solid var(--glass-border);
}

/* 应用于下拉菜单 (假设有 .dropdown-menu 类) */
.dropdown-menu.glass-effect {
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    border: 1px solid var(--glass-border);
    box-shadow: var(--glass-shadow);
}

/* ==================== Gradient Text ==================== */
.text-gradient {
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ==================== Tables ==================== */
.table-wrapper {
    background: var(--bg-primary);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
    border: 1px solid var(--border-color);
}

.table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
}

.table th {
    background: var(--bg-secondary);
    color: var(--text-tertiary);
    font-weight: 600;
    text-transform: uppercase;
    font-size: var(--font-size-xs);
    letter-spacing: 0.05em;
    padding: var(--spacing-4) var(--spacing-6);
    border-bottom: 1px solid var(--border-color);
    text-align: left;
}

.table td {
    padding: var(--spacing-4) var(--spacing-6);
    border-bottom: 1px solid var(--border-light);
    color: var(--text-secondary);
    vertical-align: middle;
    transition: background-color 0.15s;
}

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

.table tbody tr:hover td {
    background-color: var(--bg-hover);
}

/* ==================== 表格列宽工具类 ==================== */
/* 通用列宽 */
.col-xs { width: 50px; }        /* 序号/复选框 */
.col-sm { width: 60px; }        /* ID/小字段 */
.col-md { width: 100px; }       /* 状态/标签 */
.col-lg { width: 120px; }       /* 普通字段 */
.col-xl { width: 200px; }       /* 长字段 */

/* 语义化列宽 */
.col-index { width: 40px; }     /* 序号列 */
.col-id { width: 60px; }        /* ID列 */
.col-status { width: 80px; }    /* 状态列 */
.col-email { width: 200px; }    /* 邮箱列 */
.col-actions { width: 180px; }  /* 操作列 */

/* ==================== 间距工具类扩展 ==================== */
.mt-1 { margin-top: var(--spacing-1); }
.mt-3 { margin-top: var(--spacing-3); }
.mt-5 { margin-top: var(--spacing-5); }
.mt-8 { margin-top: var(--spacing-8); }

.mb-1 { margin-bottom: var(--spacing-1); }
.mb-3 { margin-bottom: var(--spacing-3); }
.mb-5 { margin-bottom: var(--spacing-5); }
.mb-8 { margin-bottom: var(--spacing-8); }

.ml-1 { margin-left: var(--spacing-1); }
.ml-2 { margin-left: var(--spacing-2); }
.ml-3 { margin-left: var(--spacing-3); }
.ml-4 { margin-left: var(--spacing-4); }

.mr-1 { margin-right: var(--spacing-1); }
.mr-2 { margin-right: var(--spacing-2); }
.mr-3 { margin-right: var(--spacing-3); }
.mr-4 { margin-right: var(--spacing-4); }

.p-1 { padding: var(--spacing-1); }
.p-2 { padding: var(--spacing-2); }
.p-3 { padding: var(--spacing-3); }
.p-4 { padding: var(--spacing-4); }
.p-5 { padding: var(--spacing-5); }
.p-6 { padding: var(--spacing-6); }

.px-1 { padding-left: var(--spacing-1); padding-right: var(--spacing-1); }
.px-2 { padding-left: var(--spacing-2); padding-right: var(--spacing-2); }
.px-3 { padding-left: var(--spacing-3); padding-right: var(--spacing-3); }
.px-4 { padding-left: var(--spacing-4); padding-right: var(--spacing-4); }

.py-1 { padding-top: var(--spacing-1); padding-bottom: var(--spacing-1); }
.py-2 { padding-top: var(--spacing-2); padding-bottom: var(--spacing-2); }
.py-3 { padding-top: var(--spacing-3); padding-bottom: var(--spacing-3); }
.py-4 { padding-top: var(--spacing-4); padding-bottom: var(--spacing-4); }

/* ==================== 文本颜色工具类 ==================== */
.text-success { color: var(--success-color); }
.text-danger { color: var(--danger-color); }

/* ==================== 滑块与上传组件 ==================== */
.slider-item input[type="range"] {
    -webkit-appearance: none;
    appearance: none;
    width: 100%;
    height: 4px;
    background: var(--bg-tertiary);
    border-radius: 2px;
    outline: none;
}

.slider-item input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 16px;
    height: 16px;
    background: var(--primary-color);
    border-radius: 50%;
    cursor: pointer;
}

.slider-item input[type="number"] {
    width: 60px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    border-radius: var(--radius-sm);
    padding: 4px 8px;
    text-align: center;
}

/* 拖拽上传脉冲动画 */
@keyframes upload-pulse {
    0% {
        box-shadow: 0 0 0 0 rgba(37, 99, 235, 0.4);
        border-color: var(--primary-color);
    }
    70% {
        box-shadow: 0 0 0 10px rgba(37, 99, 235, 0);
        border-color: var(--primary-color);
    }
    100% {
        box-shadow: 0 0 0 0 rgba(37, 99, 235, 0);
        border-color: var(--primary-color);
    }
}

.upload-dropzone.drag-active {
    animation: upload-pulse 1.5s infinite;
    background-color: rgba(37, 99, 235, 0.1);
}

/* 滑块交互动画优化 */
.slider-item input[type="range"] {
    transition: background 0.3s ease;
}

.slider-item input[type="range"]::-webkit-slider-thumb {
    transition: transform 0.2s cubic-bezier(0.175, 0.885, 0.32, 1.275), box-shadow 0.2s ease;
}

.slider-item input[type="range"]:active::-webkit-slider-thumb {
    transform: scale(1.3);
    box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.2);
}

.slider-item input[type="range"]:hover::-webkit-slider-thumb {
    transform: scale(1.1);
}
.text-warning { color: var(--warning-color); }
.text-info { color: var(--info-color); }
.text-primary { color: var(--primary-color); }
.text-secondary { color: var(--text-secondary); }
.text-gray-500 { color: var(--text-tertiary); }
.text-gray-600 { color: var(--text-secondary); }
.text-gray-700 { color: var(--text-secondary); }

/* ==================== 字体大小工具类 ==================== */
.text-xs { font-size: var(--font-size-xs); }    /* 12px */
.text-sm { font-size: var(--font-size-sm); }    /* 14px */
.text-base { font-size: var(--font-size-base); } /* 16px */
.text-lg { font-size: var(--font-size-lg); }    /* 18px */
.text-xl { font-size: var(--font-size-xl); }    /* 20px */

/* ==================== 单元格截断工具类 ==================== */
.cell-truncate {
    max-width: 200px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

/* ==================== 禁用面板工具类 ==================== */
.disabled-panel {
    opacity: 0.5;
    pointer-events: none;
}

/* ==================== CSS Tooltip ==================== */
[data-tooltip] {
    position: relative;
    cursor: help;
}

[data-tooltip]::before {
    content: attr(data-tooltip);
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%) translateY(-8px);
    padding: 6px 10px;
    background-color: var(--gray-800);
    color: var(--white);
    font-size: var(--font-size-xs);
    border-radius: var(--radius-md);
    white-space: nowrap;
    opacity: 0;
    visibility: hidden;
    transition: all 0.2s ease;
    pointer-events: none;
    z-index: 100;
    box-shadow: var(--shadow-md);
}

[data-tooltip]::after {
    content: '';
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%) translateY(0);
    border: 6px solid transparent;
    border-top-color: var(--gray-800);
    opacity: 0;
    visibility: hidden;
    transition: all 0.2s ease;
    pointer-events: none;
    z-index: 100;
}

[data-tooltip]:hover::before {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(-12px);
}

[data-tooltip]:hover::after {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(-4px);
}

/* ==================== Status Dot ==================== */
.status-dot {
    display: inline-block;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background-color: var(--gray-400);
    position: relative;
}

.status-dot.online { background-color: var(--success-color); }
.status-dot.offline { background-color: var(--gray-400); }
.status-dot.busy { background-color: var(--danger-color); }
.status-dot.away { background-color: var(--warning-color); }

.status-dot.pulse::after {
    content: '';
    position: absolute;
    top: -4px;
    left: -4px;
    right: -4px;
    bottom: -4px;
    border-radius: 50%;
    background-color: inherit;
    opacity: 0.4;
    animation: status-pulse 2s infinite;
    z-index: -1;
}

@keyframes status-pulse {
    0% { transform: scale(0.5); opacity: 0.5; }
    100% { transform: scale(2.5); opacity: 0; }
}

/* ==================== Skeleton Loading (Smart Skeleton Screens) ==================== */
.skeleton {
    background: linear-gradient(
        90deg,
        var(--bg-secondary) 25%,
        var(--bg-tertiary) 37%,
        var(--bg-secondary) 63%
    );
    background-size: 400% 100%;
    animation: skeleton-loading 1.4s ease infinite;
    border-radius: var(--radius-sm);
}

.skeleton-shimmer {
    position: relative;
    overflow: hidden;
}

.skeleton-shimmer::after {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
    transform: translateX(-100%);
    background-image: linear-gradient(
        90deg,
        rgba(255, 255, 255, 0) 0,
        rgba(255, 255, 255, 0.2) 20%,
        rgba(255, 255, 255, 0.5) 60%,
        rgba(255, 255, 255, 0)
    );
    animation: shimmer 2s infinite;
}

/* 骨架屏变体 */
.skeleton-text { height: 1em; margin-bottom: 0.5em; border-radius: var(--radius-sm); }
.skeleton-avatar { width: 40px; height: 40px; border-radius: 50%; }
.skeleton-card-img { width: 100%; aspect-ratio: 16/9; }
.skeleton-btn { height: 36px; width: 100px; border-radius: var(--radius-md); }
.skeleton-circle { width: 40px; height: 40px; border-radius: 50%; } /* 保留兼容 */
.skeleton-rect { width: 100%; height: 200px; } /* 保留兼容 */

@keyframes shimmer {
    100% { transform: translateX(100%); }
}

@keyframes skeleton-loading {
    0% { background-position: 100% 50%; }
    100% { background-position: 0 50%; }
}

/* ==================== Standardized Empty States (统一空状态) ==================== */
.empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-12) var(--spacing-6);
    text-align: center;
    background: var(--bg-primary);
    border-radius: var(--radius-lg);
    border: 1px dashed var(--border-color);
    color: var(--text-secondary);
}

.empty-state-icon {
    width: 64px;
    height: 64px;
    margin-bottom: var(--spacing-4);
    color: var(--text-tertiary);
    background: var(--bg-secondary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 32px;
}

.empty-state-title {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-2);
}

.empty-state-description {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    max-width: 400px;
    margin-bottom: var(--spacing-6);
}

/* ==================== Modern Alert ==================== */
.alert {
    padding: var(--spacing-4);
    border-radius: var(--radius-lg);
    border: 1px solid transparent;
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-3);
    margin-bottom: var(--spacing-4);
    font-size: var(--font-size-sm);
}

.alert-info {
    background-color: var(--info-bg);
    border-color: rgba(59, 130, 246, 0.2);
    color: var(--info-text);
}

.alert-success {
    background-color: var(--success-bg);
    border-color: rgba(16, 185, 129, 0.2);
    color: var(--success-text);
}

.alert-warning {
    background-color: var(--warning-bg);
    border-color: rgba(245, 158, 11, 0.2);
    color: var(--warning-text);
}

.alert-danger {
    background-color: var(--danger-bg);
    border-color: rgba(239, 68, 68, 0.2);
    color: var(--danger-text);
}

.alert-icon {
    flex-shrink: 0;
    width: 20px;
    height: 20px;
    margin-top: 2px;
}

/* ==================== JS Component Classes (Extracted from Inline Styles) ==================== */

/* Confirm Dialog */
.modal-content-confirm {
    max-width: 400px;
}

.modal-confirm-text {
    margin: 0;
    line-height: 1.6;
}

/* Loading Manager */
.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.7); /* Fallback */
    background: var(--overlay-medium, rgba(0, 0, 0, 0.7));
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
}

.loading-overlay.flex {
    display: flex;
}

.loading-box {
    background: var(--bg-secondary);
    padding: 30px;
    border-radius: 12px;
    text-align: center;
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--border-color);
}

.loading-spinner-margin {
    margin: 0 auto 16px;
}

.loading-text-style {
    margin: 0;
    color: var(--text-secondary);
    font-size: 14px;
}

/* ==================== Accessibility (A11y) Enhanced Focus Styles ==================== */
/* 全局双层高对比度焦点环 - 提升键盘导航可见性 */
:focus-visible {
    outline: none;
    box-shadow:
        0 0 0 2px var(--bg-primary),
        0 0 0 4px var(--primary-color);
}

/* 为不同元素类型提供特定的焦点样式 */
a:focus-visible,
button:focus-visible,
[role="button"]:focus-visible {
    outline: none;
    box-shadow:
        0 0 0 2px var(--bg-primary),
        0 0 0 4px var(--primary-color);
    border-radius: var(--radius-sm);
}

input:focus-visible,
textarea:focus-visible,
select:focus-visible {
    outline: none;
    border-color: var(--primary-color);
    box-shadow:
        0 0 0 2px var(--bg-primary),
        0 0 0 4px var(--primary-color),
        var(--shadow-sm);
}

/* 高对比度焦点环 - 用于深色背景元素 */
.focus-ring-light:focus-visible {
    box-shadow:
        0 0 0 2px var(--gray-900),
        0 0 0 4px var(--white);
}

/* 跳过链接 - 键盘用户辅助 */
.skip-link {
    position: absolute;
    top: -40px;
    left: 0;
    background: var(--primary-color);
    color: var(--text-inverse);
    padding: var(--spacing-2) var(--spacing-4);
    z-index: 10000;
    transition: top 0.3s;
    border-radius: 0 0 var(--radius-md) 0;
}

.skip-link:focus {
    top: 0;
}

/* 减少动画 - 尊重用户偏好 */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
    
    .skeleton,
    .skeleton-shimmer::after {
        animation: none;
    }
}

/* 屏幕阅读器专用文本 */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* 仅在焦点时可见 */
.sr-only-focusable:focus,
.sr-only-focusable:active {
    position: static;
    width: auto;
    height: auto;
    padding: inherit;
    margin: inherit;
    overflow: visible;
    clip: auto;
    white-space: normal;
}

/* ==================== Global Animations (Phase 3) ==================== */

/* Page Entry Animation */
.page-enter {
    animation: fade-in-up 0.5s cubic-bezier(0.4, 0, 0.2, 1) forwards;
    opacity: 0;
}

@keyframes fade-in-up {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Staggered Fade In */
.stagger-fade-in {
    opacity: 0;
    animation: fade-in 0.5s ease-out forwards;
}

@keyframes fade-in {
    from { opacity: 0; }
    to { opacity: 1; }
}

/* Scroll Progress Bar */
.scroll-progress {
    position: fixed;
    top: 0;
    left: 0;
    height: 3px;
    background: var(--gradient);
    z-index: 9999;
    width: 0%;
    transition: width 0.1s ease-out;
    box-shadow: 0 0 10px rgba(59, 130, 246, 0.5);
}

/* ==========================================================================
   Workspace Sidebar: Mobile/Tablet Overrides
   Purpose: Ensure the workspace sidebar remains a vertical, full-width list
   inside the drawer on touch devices and smaller viewports, avoiding any
   accidental "top-nav horizontal scroller" overrides from bundled CSS.
   ========================================================================== */
@media (max-width: 1023px) {
    .workspace-layout {
        flex-direction: row !important;
    }

    .sidebar-nav {
        display: flex !important;
        flex-direction: column !important;
        align-items: stretch;
        overflow-y: auto;
        overflow-x: hidden;
    }

    .nav-item {
        width: 100%;
        flex-shrink: 0;
    }
}