/* CSS Variables - Light Theme */
:root {
    --primary-color: #3b82f6;
    --primary-hover: #2563eb;
    --secondary-color: #64748b;
    --success-color: #10b981;
    --danger-color: #ef4444;
    --warning-color: #f59e0b;
    --info-color: #06b6d4;
    
    --bg-primary: #ffffff;
    --bg-secondary: #f8fafc;
    --bg-tertiary: #f1f5f9;
    --bg-card: #ffffff;
    
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --text-muted: #94a3b8;
    
    --border-color: #e2e8f0;
    --border-light: #f1f5f9;
    
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow: 0 1px 3px 0 rgb(0 0 0 / 0.1), 0 1px 2px -1px rgb(0 0 0 / 0.1);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    
    --sidebar-width: 260px;
    --sidebar-collapsed: 70px;
    --header-height: 64px;
    
    --radius-sm: 4px;
    --radius: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Smooth theme transition for all elements */
*,
*::before,
*::after {
    transition: background-color 0.3s cubic-bezier(0.4, 0, 0.2, 1),
                border-color 0.3s cubic-bezier(0.4, 0, 0.2, 1),
                color 0.3s cubic-bezier(0.4, 0, 0.2, 1),
                box-shadow 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* CSS Variables - Dark Theme */
[data-theme="dark"] {
    --bg-primary: #0f172a;
    --bg-secondary: #1e293b;
    --bg-tertiary: #334155;
    --bg-card: #1e293b;
    
    --text-primary: #f8fafc;
    --text-secondary: #cbd5e1;
    --text-muted: #64748b;
    
    --border-color: #334155;
    --border-light: #1e293b;
    
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.3);
    --shadow: 0 1px 3px 0 rgb(0 0 0 / 0.4), 0 1px 2px -1px rgb(0 0 0 / 0.4);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.4), 0 2px 4px -2px rgb(0 0 0 / 0.4);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.4), 0 4px 6px -4px rgb(0 0 0 / 0.4);
}

/* Reset & Base */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background-color: var(--bg-secondary);
    color: var(--text-primary);
    line-height: 1.6;
    transition: var(--transition);
}

/* App Container */
.app-container {
    display: flex;
    min-height: 100vh;
}

/* Sidebar */
.sidebar {
    width: var(--sidebar-width);
    background-color: var(--bg-card);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    position: fixed;
    height: 100vh;
    z-index: 1000;
    transition: width 0.3s cubic-bezier(0.4, 0, 0.2, 1), background-color 0.3s ease, border-color 0.3s ease;
}

/* Sidebar Overlay */
.sidebar-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: 150;
}

.sidebar-overlay.active {
    display: block;
}

.sidebar-header {
    padding: 1rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-bottom: 1px solid var(--border-color);
    height: var(--header-height);
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--primary-color);
}

.logo i {
    font-size: 1.5rem;
}

.sidebar-nav {
    flex: 1;
    padding: 1rem 0;
    overflow-y: auto;
}

.sidebar-nav ul {
    list-style: none;
}

.nav-item {
    margin: 0.25rem 0.75rem;
}

.nav-item a {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1rem;
    color: var(--text-secondary);
    text-decoration: none;
    border-radius: var(--radius);
    transition: var(--transition);
}

.nav-item a span {
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.nav-item a:hover {
    background-color: var(--bg-tertiary);
    color: var(--text-primary);
}

.nav-item.active a {
    background-color: var(--primary-color);
    color: white;
}

.nav-item i {
    width: 20px;
    text-align: center;
}

.sidebar-footer {
    padding: 0.5rem;
    border-top: 1px solid var(--border-color);
}

.theme-toggle {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    width: 100%;
    padding: 0.75rem 1rem;
    height: 40px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    color: var(--text-secondary);
    cursor: pointer;
    transition: var(--transition);
}

.theme-toggle span {
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.theme-toggle:hover {
    background-color: var(--bg-tertiary);
    color: var(--text-primary);
}

/* Main Content */
.main-content {
    flex: 1;
    margin-left: var(--sidebar-width);
    display: flex;
    flex-direction: column;
    transition: var(--transition);
    min-width: 0; /* 防止flex子项溢出 */
}

/* Top Bar */
.top-bar {
    height: var(--header-height);
    background-color: var(--bg-card);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 1.5rem;
    position: sticky;
    top: 0;
    z-index: 100;
}

.top-bar-left {
    display: flex;
    align-items: center;
    gap: 1rem;
}

/* Mobile Menu Toggle */
.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: 1.25rem;
    cursor: pointer;
    padding: 0;
    border-radius: var(--radius);
    transition: var(--transition);
    position: relative;
    z-index: 150;
    width: 40px;
    height: 40px;
    align-items: center;
    justify-content: center;
    margin-left: -0.5rem;
}

.mobile-menu-toggle:active {
    transform: scale(0.95);
}

.page-title {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-primary);
}

.status-indicator {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background-color: var(--text-muted);
}

.status-dot.online {
    background-color: var(--success-color);
}

.status-text {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.top-bar-right {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.user-controls {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.user-controls .btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    height: 2.25rem;
    padding: 0 1rem;
    text-decoration: none;
}

/* Content Wrapper */
.content-wrapper {
    flex: 1;
    padding: 1.5rem;
    overflow-y: auto;
}

/* Page */
.page {
    display: none;
}

.page.active {
    display: block;
}

.page-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1.5rem;
}

.page-header h2 {
    font-size: 1.5rem;
    font-weight: 600;
}

/* Stats Grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 1.5rem;
    margin-bottom: 1.5rem;
}

.stat-card {
    background-color: var(--bg-card);
    border-radius: var(--radius-md);
    padding: 1.5rem;
    display: flex;
    align-items: center;
    gap: 1rem;
    box-shadow: var(--shadow);
    border: 1px solid var(--border-color);
}

.stat-icon {
    width: 60px;
    height: 60px;
    border-radius: var(--radius);
    background-color: var(--primary-color);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.5rem;
}

.stat-info h3 {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-bottom: 0.25rem;
}

.stat-value {
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-primary);
}

/* Dashboard Sections */
.dashboard-sections {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
}

.section-card {
    background-color: var(--bg-card);
    border-radius: var(--radius-md);
    padding: 1.5rem;
    box-shadow: var(--shadow);
    border: 1px solid var(--border-color);
}

.section-card h3 {
    font-size: 1.125rem;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

/* Quick Actions */
.quick-actions {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: 1rem;
}

.action-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    padding: 1rem;
    background-color: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    color: var(--text-secondary);
    cursor: pointer;
    transition: var(--transition);
}

.action-btn:hover {
    background-color: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

.action-btn i {
    font-size: 1.5rem;
}

.action-btn span {
    font-size: 0.875rem;
}

/* Status List */
.status-list {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.status-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.75rem;
    background-color: var(--bg-tertiary);
    border-radius: var(--radius);
}

.status-label {
    color: var(--text-secondary);
}

.status-badge {
    padding: 0.25rem 0.75rem;
    border-radius: 9999px;
    font-size: 0.75rem;
    font-weight: 600;
}

.status-badge.success {
    background-color: rgba(16, 185, 129, 0.1);
    color: var(--success-color);
}

.status-badge.info {
    background-color: rgba(6, 182, 212, 0.1);
    color: var(--info-color);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.625rem 1rem;
    border: none;
    border-radius: var(--radius);
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
}

.btn-primary {
    background-color: var(--primary-color);
    color: white;
}

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

.btn-secondary {
    background-color: var(--bg-tertiary);
    color: var(--text-secondary);
    border: 1px solid var(--border-color);
}

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

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

.btn-danger:hover {
    background-color: #dc2626;
}

.btn-sm {
    padding: 0.375rem 0.75rem;
    font-size: 0.75rem;
}

/* Table */
.table-container {
    background-color: var(--bg-card);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow);
    border: 1px solid var(--border-color);
    overflow-x: auto;
}

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

.data-table th,
.data-table td {
    padding: 1rem;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.data-table th {
    font-weight: 600;
    color: var(--text-secondary);
    font-size: 0.875rem;
    background-color: var(--bg-tertiary);
}

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

.data-table td {
    color: var(--text-primary);
    font-size: 0.875rem;
}

/* 表格操作按钮 - 始终水平排列 */
.data-table td:last-child {
    white-space: nowrap;
    min-width: 100px;
}

.data-table td:last-child .btn {
    display: inline-flex;
    white-space: nowrap;
}

/* Operations Columns */
.operations-columns {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
}

.operations-column {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    min-width: 0;
    overflow: hidden;
}

.column-title {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
    padding-bottom: 0.75rem;
    border-bottom: 2px solid var(--primary-color);
}

.column-title.danger {
    color: var(--danger-color);
    border-bottom-color: var(--danger-color);
}

/* Operations Grid */
.operations-grid {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.operation-card {
    background-color: var(--bg-card);
    border-radius: var(--radius-md);
    padding: 1rem 1.25rem;
    box-shadow: var(--shadow);
    border: 1px solid var(--border-color);
    display: flex;
    flex-direction: row;
    align-items: center;
    gap: 0.75rem;
    overflow: hidden;
    min-width: 0;
}

.operation-card.highlight {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px rgba(59, 130, 246, 0.1);
}

.operation-card.danger {
    border-color: var(--danger-color);
}

.operation-card .operation-content {
    flex: 1;
    min-width: 0;
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.operation-card h3 {
    font-size: 0.9375rem;
    color: var(--text-primary);
    line-height: 1.3;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.operation-card p {
    color: var(--text-secondary);
    font-size: 0.75rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.operation-card .btn {
    white-space: nowrap;
    width: 100px;
    flex-shrink: 0;
    justify-content: center;
    padding: 0.5rem 0.75rem;
    font-size: 0.8125rem;
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: 2000;
    align-items: center;
    justify-content: center;
    padding: 1rem;
}

.modal.active {
    display: flex;
}

.modal-content {
    background-color: var(--bg-card);
    border-radius: var(--radius-lg);
    width: 100%;
    max-width: 500px;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: var(--shadow-lg);
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1.25rem;
    border-bottom: 1px solid var(--border-color);
}

.modal-header h3 {
    font-size: 1.125rem;
    font-weight: 600;
}

.modal-close {
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    padding: 0.25rem;
    border-radius: var(--radius);
    transition: var(--transition);
}

.modal-close:hover {
    color: var(--text-primary);
    background-color: var(--bg-tertiary);
}

.modal-body {
    padding: 1.25rem;
}

.modal-footer {
    display: flex;
    justify-content: flex-end;
    gap: 0.75rem;
    padding: 1.25rem;
    border-top: 1px solid var(--border-color);
}

/* Form */
.form-group {
    margin-bottom: 1rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-primary);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.625rem 0.875rem;
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    font-size: 0.875rem;
    transition: var(--transition);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 80px;
}

/* Toast */
.toast-container {
    position: fixed;
    top: 1rem;
    right: 1rem;
    z-index: 3000;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.toast {
    padding: 1rem 1.25rem;
    border-radius: var(--radius);
    background-color: var(--bg-card);
    box-shadow: var(--shadow-lg);
    border-left: 4px solid;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    animation: slideIn 0.3s ease;
}

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

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

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

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

@keyframes slideIn {
    from {
        transform: translateX(100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

/* Responsive */
/* 大屏幕适配 (1025px - 1200px) */
@media (max-width: 1200px) and (min-width: 1025px) {
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .quick-actions {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* 中等屏幕适配 (769px - 1024px) */
@media (max-width: 1024px) {
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .quick-actions {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .dashboard-sections {
        grid-template-columns: 1fr;
    }
    
    /* 确保内容不会溢出 */
    .content-wrapper {
        padding: 1rem;
    }
    
    .page-header {
        flex-wrap: wrap;
    }
}

/* 移动端适配 (<= 768px) */
@media (max-width: 768px) {
    .sidebar {
        transform: translateX(0);
        position: fixed;
        z-index: 200;
        height: 100vh;
        width: var(--sidebar-collapsed);
        overflow: visible;
    }
    
    .sidebar-header {
        display: none;
    }
    
    .nav-item {
        margin: 0.25rem 0.5rem;
    }
    
    .nav-item a {
        justify-content: center;
        padding: 0.75rem 1rem;
        height: 40px;
    }
    
    .nav-item a span {
        display: none;
    }
    
    .nav-item i {
        width: 20px;
        font-size: 1rem;
    }
    
    .sidebar-footer {
        padding: 0.5rem;
    }
    
    .theme-toggle {
        justify-content: center;
        padding: 0.75rem 1rem;
        height: 40px;
        width: 100%;
    }
    
    .theme-toggle span {
        display: none;
    }
    
    .mobile-menu-toggle {
        display: flex !important;
        position: relative;
        margin: 1rem auto;
        order: -1;
    }
    
    .sidebar-nav {
        padding-top: 0.5rem;
    }
    
    .main-content {
        margin-left: var(--sidebar-collapsed);
    }
    
    /* 展开的侧边栏 */
    .sidebar.expanded {
        width: var(--sidebar-width);
    }
    
    .sidebar.expanded .nav-item {
        margin: 0.25rem 0.75rem;
    }
    
    .sidebar.expanded .nav-item a {
        justify-content: flex-start;
        padding: 0.75rem 1rem;
        gap: 0.75rem;
        height: 40px;
    }
    
    .sidebar.expanded .nav-item a span {
        display: inline;
    }
    
    .sidebar.expanded .nav-item i {
        width: 20px;
        font-size: 1rem;
    }
    
    .sidebar.expanded .sidebar-footer {
        padding: 0.5rem;
    }
    
    .sidebar.expanded .theme-toggle {
        justify-content: flex-start;
        padding: 0.75rem 1rem;
        height: 40px;
        width: 100%;
    }
    
    .sidebar.expanded .theme-toggle span {
        display: inline;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .operations-columns {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .operations-grid {
        grid-template-columns: 1fr;
    }
    
    .page-header {
        flex-direction: column;
        gap: 1rem;
        align-items: flex-start;
    }
    
    .data-table {
        font-size: 0.75rem;
    }
    
    .data-table th,
    .data-table td {
        padding: 0.75rem 0.5rem;
    }
    
    /* 表格横向滚动 */
    .table-container {
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        max-width: 100%;
        border-radius: var(--radius);
        border: 1px solid var(--border-color);
    }
    
    .data-table {
        min-width: 600px;
        width: 100%;
        margin: 0;
    }
    
    /* 防止内容溢出 */
    .page {
        max-width: 100%;
        overflow-x: hidden;
    }
}

@media (max-width: 480px) {
    .content-wrapper {
        padding: 1rem;
    }
    
    .stat-card {
        flex-direction: column;
        text-align: center;
    }
    
    .quick-actions {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .modal-content {
        margin: 0.5rem;
    }
}

/* Scrollbar */
::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}

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

::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 3px;
    border: 2px solid transparent;
    background-clip: padding-box;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--text-muted);
    border: 2px solid transparent;
    background-clip: padding-box;
}

/* Firefox Scrollbar */
* {
    scrollbar-width: thin;
    scrollbar-color: var(--border-color) transparent;
}

*::-webkit-scrollbar-corner {
    background: transparent;
}

/* Checkbox Group */
.checkbox-group {
    display: flex;
    align-items: center;
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
    font-size: 0.875rem;
    color: var(--text-primary);
    margin-bottom: 0 !important;
    user-select: none;
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
}

.checkbox-label input[type="checkbox"] {
    width: auto;
    margin: 0;
    pointer-events: none;
}

/* Config Section */
.config-section {
    background-color: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    padding: 1rem;
    margin-bottom: 1rem;
}

/* Subdomain Item */
.subdomain-item {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    padding: 1rem;
    margin-bottom: 1rem;
}

.subdomain-item .form-group {
    margin-bottom: 0.75rem;
}

.subdomain-item .form-group:last-child {
    margin-bottom: 0;
}

/* ACME Option Item */
.acme-option-item {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    padding: 1rem;
    margin-bottom: 1rem;
}

.acme-option-item .form-group {
    margin-bottom: 0.75rem;
}

.acme-option-item .form-group:last-child {
    margin-bottom: 0;
}

/* Form Help Text */
.form-help {
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-top: 0.25rem;
}

/* 操作遮罩层 */
.operation-overlay {
    position: fixed !important;
    top: 0 !important;
    left: 0 !important;
    right: 0 !important;
    bottom: 0 !important;
    background-color: rgba(0, 0, 0, 0.75) !important;
    display: none !important;
    justify-content: center;
    align-items: center;
    z-index: 999999 !important;
}

.operation-overlay.active {
    display: flex !important;
}

.operation-overlay-content {
    background-color: var(--bg-card);
    border-radius: var(--radius-lg);
    padding: 3rem 4rem;
    text-align: center;
    box-shadow: var(--shadow-lg);
    max-width: 95%;
    min-width: 400px;
    position: relative;
    z-index: 1000000;
}

.operation-spinner {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.operation-spinner i {
    animation: spin 1s linear infinite;
}

@keyframes spin {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(360deg);
    }
}

.operation-text {
    font-size: 1.25rem;
    color: var(--text-primary);
    font-weight: 500;
    line-height: 1.6;
    word-wrap: break-word;
    white-space: pre-wrap;
}