/* CSS Variables - Light Theme */
:root {
    --color-bg: #f8fafc;
    --color-surface: #ffffff;
    --color-surface-2: #f1f5f9;
    --color-surface-3: #e2e8f0;
    --color-border: #e2e8f0;
    --color-border-dark: #cbd5e1;
    --color-text: #0f172a;
    --color-text-muted: #64748b;
    --color-text-light: #94a3b8;
    --color-primary: #3b82f6;
    --color-primary-hover: #2563eb;
    --color-primary-light: #eff6ff;
    --color-success: #22c55e;
    --color-success-light: #dcfce7;
    --color-warning: #f59e0b;
    --color-warning-light: #fef3c7;
    --color-danger: #ef4444;
    --color-danger-hover: #dc2626;
    --color-danger-light: #fee2e2;
    --color-info: #06b6d4;
    --color-info-light: #cffafe;
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    --font-mono: 'JetBrains Mono', 'SF Mono', 'Monaco', 'Consolas', 'Liberation Mono', 'Courier New', monospace;
    --border-radius: 6px;
    --border-radius-sm: 4px;
    --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);
    --transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    font-size: 14px;
}

body {
    font-family: var(--font-family);
    background-color: var(--color-bg);
    color: var(--color-text);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

a {
    color: var(--color-primary);
    text-decoration: none;
    transition: var(--transition);
}

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

/* Navbar */
.navbar {
    background-color: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
    padding: 0 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: var(--shadow-sm);
    height: 56px;
}

.navbar-brand .logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--color-text);
    font-weight: 600;
    font-size: 1.1rem;
}

.navbar-brand .logo:hover {
    color: var(--color-primary);
}

.navbar-menu {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    height: 100%;
}

.navbar-links {
    display: flex;
    align-items: center;
    gap: 0.25rem;
    height: 100%;
}

.nav-link {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 0.875rem;
    color: var(--color-text-muted);
    font-weight: 500;
    font-size: 0.875rem;
    border-radius: var(--border-radius);
    transition: var(--transition);
    text-decoration: none;
}

.nav-link:hover {
    color: var(--color-text);
    background-color: var(--color-surface-2);
}

.nav-link.active {
    color: var(--color-primary);
    background-color: var(--color-primary-light);
}

.nav-link svg {
    flex-shrink: 0;
}

.navbar-divider {
    width: 1px;
    height: 24px;
    background-color: var(--color-border);
    margin: 0 0.5rem;
}

.navbar-user-section {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.navbar-user {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--color-text-muted);
    font-weight: 500;
    font-size: 0.875rem;
    padding: 0.375rem 0.625rem;
    background-color: var(--color-surface-2);
    border-radius: var(--border-radius);
}

.navbar-user svg {
    color: var(--color-text-light);
}

/* Mobile navbar */
@media (max-width: 640px) {
    .navbar {
        padding: 0 1rem;
    }
    
    .nav-link span {
        display: none;
    }
    
    .nav-link {
        padding: 0.5rem;
    }
    
    .navbar-user span {
        display: none;
    }
    
    .navbar-user {
        padding: 0.375rem;
    }
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    border: none;
    border-radius: var(--border-radius);
    font-size: 0.875rem;
    font-weight: 600;
    letter-spacing: 0.01em;
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
}

.btn:active {
    transform: translateY(1px);
}

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

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

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

.btn-success:hover {
    background-color: #15803d;
    color: white;
}

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

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

.btn-ghost {
    background-color: transparent;
    color: var(--color-text);
    border: 1px solid var(--color-border);
}

.btn-ghost:hover {
    background-color: var(--color-surface-2);
    border-color: var(--color-border-dark);
    color: var(--color-text);
}

.btn-sm {
    padding: 0.25rem 0.625rem;
    font-size: 0.8rem;
}

.btn-icon {
    padding: 0.5rem;
    background: transparent;
    border: none;
    color: var(--color-text-muted);
    cursor: pointer;
    border-radius: var(--border-radius-sm);
    transition: var(--transition);
}

.btn-icon:hover {
    background-color: var(--color-surface-2);
    color: var(--color-text);
}

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

.form-label {
    display: block;
    margin-bottom: 0.375rem;
    font-weight: 500;
    color: var(--color-text);
}

.form-input {
    width: 100%;
    padding: 0.5rem 0.75rem;
    background-color: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    color: var(--color-text);
    font-size: 0.875rem;
    font-family: inherit;
    transition: var(--transition);
}

.form-input:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 4px var(--color-primary-light);
}

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

textarea.form-input {
    resize: vertical;
    font-family: var(--font-mono);
}

select.form-input {
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%2364748b' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 0.5rem center;
    padding-right: 2rem;
}

.form-checkbox {
    width: auto;
    margin-right: 0.5rem;
    accent-color: var(--color-primary);
}

.checkbox-group {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    padding: 0.75rem;
    background-color: var(--color-surface-2);
    border-radius: var(--border-radius);
    border: 1px solid var(--color-border);
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 0.25rem;
    padding: 0.25rem 0.5rem;
    background-color: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-sm);
    cursor: pointer;
    font-size: 0.875rem;
    transition: var(--transition);
}

.checkbox-label:hover {
    border-color: var(--color-primary);
    background-color: var(--color-primary-light);
}

.checkbox-label:has(.form-checkbox:checked) {
    background-color: var(--color-primary-light);
    border-color: var(--color-primary);
}

.form-inline {
    display: flex;
    gap: 0.5rem;
    align-items: flex-end;
}

.form-inline .form-group {
    margin-bottom: 0;
    flex: 1;
}

.form-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 0.75rem;
    padding: 0.75rem;
    background-color: var(--color-surface-2);
    border-radius: var(--border-radius);
    margin-bottom: 0.5rem;
}

.form-row .form-group {
    margin-bottom: 0;
}

/* Messages */
.messages-container {
    padding: 1rem 1.5rem 0;
    max-width: 1400px;
    margin: 0 auto;
    width: 100%;
}

.message {
    padding: 0.75rem 1rem;
    border-radius: var(--border-radius);
    margin-bottom: 0.5rem;
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    animation: slideIn 0.3s ease;
    box-shadow: var(--shadow-sm);
}

.message-text {
    flex: 1;
    font-family: 'Courier New', monospace;
    white-space: pre-wrap;
    word-break: break-word;
}

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

.message-success {
    background-color: var(--color-success-light);
    border: 1px solid var(--color-success);
    color: var(--color-success);
}

.message-error {
    background-color: var(--color-danger-light);
    border: 1px solid var(--color-danger);
    color: var(--color-danger);
}

.message-warning {
    background-color: var(--color-warning-light);
    border: 1px solid var(--color-warning);
    color: var(--color-warning);
}

.message-info {
    background-color: var(--color-info-light);
    border: 1px solid var(--color-info);
    color: var(--color-info);
}

.message-close {
    background: none;
    border: none;
    color: inherit;
    font-size: 1.25rem;
    cursor: pointer;
    opacity: 0.7;
    padding: 0;
    line-height: 1;
}

.message-close:hover {
    opacity: 1;
}

/* Main Content */
.main-content {
    flex: 1;
    padding: 1.5rem;
    margin: 0 auto;
    width: 100%;
}

.content {
    min-width: 0;
    width: 100%;
}

/* Cards */
.card {
    background-color: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
}

.card-header {
    padding: 1rem 1.25rem;
    border-bottom: 1px solid var(--color-border);
    display: flex;
    justify-content: space-between;
    align-items: center;
    background-color: var(--color-surface-2);
}

.card-title {
    font-size: 0.875rem;
    font-weight: 600;
    margin: 0;
    color: var(--color-text);
    text-transform: uppercase;
    letter-spacing: 0.025em;
}

.card-body {
    padding: 1.25rem;
}

.card-footer {
    padding: 1rem 1.25rem;
    border-top: 1px solid var(--color-border);
    background-color: var(--color-surface-2);
}

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

.page-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-text);
}

.page-subtitle {
    color: var(--color-text-muted);
    font-size: 0.875rem;
    margin-top: 0.25rem;
}

.breadcrumb {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--color-text-muted);
    font-size: 0.875rem;
    margin-bottom: 1rem;
}

.breadcrumb a {
    color: var(--color-text-muted);
}

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

.breadcrumb-separator {
    color: var(--color-text-light);
}

/* Grid */
.grid {
    display: grid;
    gap: 1rem;
}

.grid-2 {
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
}

.grid-3 {
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
}

/* Database List */
.database-card {
    background-color: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    padding: 1.5rem;
    transition: var(--transition);
    display: flex;
    flex-direction: column;
    gap: 1rem;
    box-shadow: var(--shadow-sm);
    position: relative;
}

.database-card:hover {
    border-color: var(--color-primary);
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.database-card-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 1rem;
}

.database-icon {
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, var(--color-primary-light) 0%, var(--color-surface-2) 100%);
    border-radius: var(--border-radius);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-primary);
    flex-shrink: 0;
    border: 1px solid rgba(255, 255, 255, 0.5);
}

.database-name {
    font-weight: 600;
    font-size: 1.125rem;
    word-break: break-all;
    color: var(--color-text);
    margin-bottom: 0.25rem;
    display: block;
}

.database-name:hover {
    color: var(--color-primary);
}

.database-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    color: var(--color-text-muted);
    font-size: 0.8125rem;
    align-items: center;
}

.database-actions {
    display: flex;
    gap: 0.5rem;
    margin-top: auto;
    padding-top: 1rem;
    border-top: 1px solid var(--color-surface-2);
}

/* Dashboard List */
.dashboard-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    padding: 1.5rem;
    transition: var(--transition);
    position: relative;
    display: flex;
    flex-direction: column;
    gap: 1rem;
    box-shadow: var(--shadow-sm);
}

.dashboard-card:hover {
    border-color: var(--color-primary);
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.dashboard-card.is-default {
    border-color: var(--color-primary);
    background: linear-gradient(135deg, var(--color-primary-light) 0%, var(--color-surface) 100%);
}

.dashboard-card-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 1rem;
}

.dashboard-icon {
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-hover) 100%);
    border-radius: var(--border-radius);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    flex-shrink: 0;
    box-shadow: var(--shadow-sm);
}

.dashboard-name {
    font-weight: 600;
    font-size: 1.125rem;
    color: var(--color-text);
    margin-bottom: 0.25rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.dashboard-name a {
    color: var(--color-text);
}

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

.dashboard-description {
    color: var(--color-text-muted);
    font-size: 0.875rem;
    line-height: 1.5;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.dashboard-meta {
    display: flex;
    gap: 1rem;
    font-size: 0.8125rem;
    color: var(--color-text-muted);
    margin-top: auto;
}

.dashboard-meta-item {
    display: flex;
    align-items: center;
    gap: 0.375rem;
}

.default-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    font-size: 0.7rem;
    padding: 0.15rem 0.5rem;
    background: var(--color-primary);
    color: white;
    border-radius: 999px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* Tables - Clean spreadsheet styling */
.table-container {
    overflow: auto;
    max-height: calc(100vh - 260px);
    border: 1px solid var(--color-border-dark);
    border-radius: var(--border-radius-sm);
    background: var(--color-surface);
}

.table-container::-webkit-scrollbar {
    width: 10px;
    height: 10px;
}

.table-container::-webkit-scrollbar-track {
    background: var(--color-surface-2);
}

.table-container::-webkit-scrollbar-thumb {
    background: var(--color-border-dark);
    border-radius: 5px;
}

.table-container::-webkit-scrollbar-thumb:hover {
    background: var(--color-text-light);
}

.table-container::-webkit-scrollbar-corner {
    background: var(--color-surface-2);
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    border-spacing: 0;
    font-size: 0.8125rem;
    table-layout: fixed;
}

.data-table th,
.data-table td {
    padding: 0.5rem 0.75rem;
    text-align: left;
    border: 1px solid var(--color-border);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.data-table th {
    background-color: var(--color-surface-2);
    font-weight: 600;
    color: var(--color-text-muted);
    text-transform: none;
    font-size: 0.75rem;
    letter-spacing: normal;
    white-space: nowrap;
    position: sticky;
    top: 0;
    z-index: 10;
    user-select: none;
    min-width: 80px;
    border-color: var(--color-border-dark);
}

.data-table th.col-resizable {
    position: -webkit-sticky;
    position: sticky;
    top: 0;
}

/* Wrapper for th content to enable absolute positioning of resize handle */
.data-table th.col-resizable .th-content {
    position: relative;
    padding-right: 8px;
}

.data-table th .col-resize-handle {
    position: absolute;
    right: -2px;
    top: -0.375rem;
    bottom: -0.375rem;
    width: 6px;
    cursor: col-resize;
    background: transparent;
    z-index: 20;
}

.data-table th .col-resize-handle:hover,
.data-table th .col-resize-handle.resizing {
    background: var(--color-primary);
}

.data-table th.col-hidden,
.data-table td.col-hidden {
    display: none;
}

.data-table th.dragging {
    opacity: 0.5;
    background: var(--color-primary-light);
}

.data-table th.drag-over {
    border-left: 3px solid var(--color-primary);
}

.data-table th .th-content {
    display: flex;
    align-items: center;
    gap: 0.25rem;
    justify-content: space-between;
}

.data-table th .col-name {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    flex: 1;
    font-weight: 600;
}

.data-table th .col-actions {
    display: flex;
    align-items: center;
    gap: 1px;
    opacity: 0;
    transition: opacity 0.15s;
}

.data-table th:hover .col-actions {
    opacity: 1;
}

.data-table th .col-action-btn {
    padding: 1px;
    background: transparent;
    border: none;
    cursor: pointer;
    color: #666;
    border-radius: 2px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.data-table th .col-action-btn:hover {
    background: var(--color-surface-3);
    color: var(--color-text);
}

.data-table tr:hover td {
    background-color: var(--color-primary-light);
}

.data-table tr.selected td {
    background-color: var(--color-info-light);
}

.data-table td {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    background: var(--color-surface);
    max-width: 300px;
}

/* Row ID column - styled like row numbers */
.data-table td[data-col="0"] {
    background: var(--color-surface-2);
    color: var(--color-text-muted);
    font-weight: 500;
    text-align: center;
    border-color: var(--color-border-dark);
    min-width: 60px;
    max-width: 80px;
}

.data-table tr:hover td[data-col="0"] {
    background: var(--color-surface-3);
}

.data-table .null-value {
    color: var(--color-text-light);
    font-style: italic;
    font-size: 0.6875rem;
}

.data-table .actions-cell {
    white-space: nowrap;
    text-align: center;
    position: sticky;
    right: 0;
    background: var(--color-surface);
    z-index: 5;
    border-left: 2px solid var(--color-border-dark);
    min-width: 70px;
    max-width: 90px;
}

.data-table th.actions-cell {
    z-index: 15;
    background: var(--color-surface-2);
}

.data-table tr:hover .actions-cell {
    background: var(--color-primary-light);
}

/* Column Management Toolbar */
.table-toolbar {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1rem;
    background: var(--color-surface-2);
    border-bottom: 1px solid var(--color-border);
    flex-wrap: wrap;
}

.table-toolbar-group {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.table-toolbar-label {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.column-visibility-dropdown {
    position: relative;
}

.column-visibility-btn {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.375rem 0.75rem;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-sm);
    font-size: 0.8rem;
    cursor: pointer;
    color: var(--color-text);
    transition: var(--transition);
}

.column-visibility-btn:hover {
    border-color: var(--color-primary);
    background: var(--color-primary-light);
}

.column-visibility-menu {
    position: absolute;
    top: 100%;
    left: 0;
    margin-top: 0.25rem;
    min-width: 220px;
    max-height: 320px;
    overflow-y: auto;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-lg);
    z-index: 100;
    display: none;
}

.column-visibility-menu.active {
    display: block;
}

.column-visibility-menu-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.5rem 0.75rem;
    border-bottom: 1px solid var(--color-border);
    background: var(--color-surface-2);
}

.column-visibility-menu-title {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--color-text-muted);
    text-transform: uppercase;
}

.column-visibility-menu-actions {
    display: flex;
    gap: 0.5rem;
}

.column-visibility-menu-actions button {
    font-size: 0.7rem;
    padding: 0.125rem 0.375rem;
    background: transparent;
    border: 1px solid var(--color-border);
    border-radius: 3px;
    cursor: pointer;
    color: var(--color-text-muted);
}

.column-visibility-menu-actions button:hover {
    background: var(--color-primary-light);
    border-color: var(--color-primary);
    color: var(--color-primary);
}

.column-visibility-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 0.75rem;
    cursor: pointer;
    transition: background 0.15s;
    border-bottom: 1px solid var(--color-border);
}

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

.column-visibility-item:hover {
    background: var(--color-surface-2);
}

.column-visibility-item.sortable-drag {
    background: var(--color-primary-light);
    box-shadow: var(--shadow-md);
}

.column-visibility-item input[type="checkbox"] {
    accent-color: var(--color-primary);
}

.column-visibility-item .col-drag-handle {
    cursor: grab;
    color: var(--color-text-light);
    padding: 2px;
}

.column-visibility-item .col-drag-handle:hover {
    color: var(--color-text);
}

.column-visibility-item .col-label {
    flex: 1;
    font-size: 0.8rem;
    font-family: var(--font-mono);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.table-scroll-hint {
    display: flex;
    align-items: center;
    gap: 0.375rem;
    font-size: 0.75rem;
    color: var(--color-text-muted);
    padding: 0.25rem 0.5rem;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-sm);
}

.reset-columns-btn {
    display: flex;
    align-items: center;
    gap: 0.25rem;
    padding: 0.375rem 0.5rem;
    background: transparent;
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-sm);
    font-size: 0.75rem;
    cursor: pointer;
    color: var(--color-text-muted);
    transition: var(--transition);
}

.reset-columns-btn:hover {
    background: var(--color-surface);
    border-color: var(--color-border-dark);
    color: var(--color-text);
}

/* Table Info Card */
.table-card {
    background-color: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    overflow: hidden;
    transition: var(--transition);
    box-shadow: var(--shadow-sm);
    display: flex;
    flex-direction: column;
}

.table-card:hover {
    border-color: var(--color-primary);
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.table-card-header {
    padding: 1rem 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--color-surface-2);
    background: var(--color-surface);
}

.table-card-title {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-weight: 600;
    font-size: 1rem;
    color: var(--color-text);
}

.table-card-title:hover {
    color: var(--color-primary);
}

.table-card-title svg {
    color: var(--color-text-muted);
    transition: var(--transition);
}

.table-card:hover .table-card-title svg {
    color: var(--color-primary);
}

.table-card-body {
    padding: 1.25rem 1.5rem;
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.table-card-meta {
    display: flex;
    gap: 1.5rem;
    color: var(--color-text-muted);
    font-size: 0.8125rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--color-surface-2);
}

.column-list {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.column-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.375rem;
    padding: 0.25rem 0.625rem;
    background-color: var(--color-surface-2);
    border-radius: var(--border-radius-sm);
    font-size: 0.75rem;
    font-family: var(--font-mono);
    border: 1px solid transparent;
    color: var(--color-text);
}

.column-badge .type {
    color: var(--color-text-muted);
    font-size: 0.7em;
    text-transform: uppercase;
}

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

.column-badge.pk .type {
    color: var(--color-primary);
    opacity: 0.8;
}

/* Tabs */
.tabs {
    display: flex;
    border-bottom: 2px solid var(--color-border);
    margin-bottom: 1.5rem;
    gap: 0.25rem;
}

.tab {
    padding: 0.75rem 1.25rem;
    color: var(--color-text-muted);
    font-weight: 500;
    cursor: pointer;
    border-bottom: 2px solid transparent;
    margin-bottom: -2px;
    transition: var(--transition);
    border-radius: var(--border-radius) var(--border-radius) 0 0;
}

.tab:hover {
    color: var(--color-text);
    background-color: var(--color-surface-2);
}

.tab.active {
    color: var(--color-primary);
    border-bottom-color: var(--color-primary);
    background-color: var(--color-surface);
}

.tab-content {
    display: none;
}

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

/* Query Editor */
.query-editor {
    margin-bottom: 1.5rem;
}

.query-input {
    font-family: var(--font-mono);
    min-height: 120px;
    resize: vertical;
    background-color: var(--color-surface-2);
}

.query-actions {
    display: flex;
    gap: 0.5rem;
    margin-top: 0.75rem;
}

.query-templates {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.25rem;
}

.query-templates .btn {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    padding: 0.25rem 0.5rem;
}

.query-result {
    margin-top: 1.5rem;
}

.query-result-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.75rem;
    padding: 0.5rem 0.75rem;
    background-color: var(--color-surface-2);
    border-radius: var(--border-radius);
    color: var(--color-text-muted);
    font-size: 0.875rem;
}

/* Pagination */
.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 0.5rem;
    margin-top: 1.5rem;
    padding: 1rem;
}

.pagination-btn {
    padding: 0.5rem 0.875rem;
    background-color: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    color: var(--color-text);
    cursor: pointer;
    transition: var(--transition);
    font-weight: 500;
    text-decoration: none;
}

.pagination-btn:hover:not(:disabled) {
    border-color: var(--color-primary);
    color: var(--color-primary);
}

.pagination-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.pagination-info {
    color: var(--color-text-muted);
    font-size: 0.875rem;
    padding: 0 1rem;
}

/* Modal */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(15, 23, 42, 0.6);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 200;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    backdrop-filter: blur(2px);
}

.modal-overlay.active {
    opacity: 1;
    visibility: visible;
}

.modal {
    background-color: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    max-width: 560px;
    width: 90%;
    max-height: 90vh;
    overflow-y: auto;
    transform: scale(0.95);
    transition: var(--transition);
    box-shadow: var(--shadow-lg);
}

.modal-overlay.active .modal {
    transform: scale(1);
}

.modal-header {
    padding: 1.25rem 1.5rem;
    border-bottom: 1px solid var(--color-border);
    display: flex;
    justify-content: space-between;
    align-items: center;
    background-color: var(--color-surface-2);
}

.modal-title {
    font-weight: 600;
    font-size: 1.1rem;
    color: var(--color-text);
}

.modal-close {
    background: none;
    border: none;
    color: var(--color-text-muted);
    font-size: 1.5rem;
    cursor: pointer;
    padding: 0;
    line-height: 1;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--border-radius-sm);
}

.modal-close:hover {
    color: var(--color-text);
    background-color: var(--color-surface-3);
}

.modal-body {
    padding: 1.5rem;
}

.modal-footer {
    padding: 1rem 1.5rem;
    border-top: 1px solid var(--color-border);
    display: flex;
    justify-content: flex-end;
    gap: 0.5rem;
    background-color: var(--color-surface-2);
}

/* Empty State */
.empty-state {
    text-align: center;
    padding: 3rem 2rem;
    color: var(--color-text-muted);
}

.empty-state svg {
    width: 64px;
    height: 64px;
    margin-bottom: 1rem;
    opacity: 0.4;
    color: var(--color-text-light);
}

.empty-state-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: 0.5rem;
}

.empty-state-text {
    margin-bottom: 1.5rem;
    max-width: 400px;
    margin-left: auto;
    margin-right: auto;
}

/* Auth Pages */
.auth-container {
    max-width: 420px;
    margin: 3rem auto;
}

.auth-card {
    background-color: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    padding: 2rem;
    box-shadow: var(--shadow-md);
}

.auth-title {
    font-size: 1.5rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 0.5rem;
    color: var(--color-text);
}

.auth-subtitle {
    color: var(--color-text-muted);
    text-align: center;
    margin-bottom: 1.5rem;
}

.auth-form .btn {
    width: 100%;
    margin-top: 0.5rem;
    padding: 0.75rem 1rem;
}

.auth-footer {
    text-align: center;
    margin-top: 1.5rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--color-border);
    color: var(--color-text-muted);
}

/* Footer */
.footer {
    text-align: center;
    padding: 1.5rem;
    color: var(--color-text-muted);
    font-size: 0.8rem;
    border-top: 1px solid var(--color-border);
    background-color: var(--color-surface);
}

/* Syntax Highlighting */
.highlight {
    background-color: var(--color-surface-2) !important;
    padding: 1rem;
    border-radius: var(--border-radius);
    overflow-x: auto;
    border: 1px solid var(--color-border);
}

.highlight pre {
    margin: 0;
    font-family: var(--font-mono);
    font-size: 0.875rem;
}

/* Query History */
.history-item {
    background-color: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    margin-bottom: 0.75rem;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

.history-item-header {
    padding: 0.75rem 1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    background-color: var(--color-surface-2);
    font-size: 0.8rem;
    color: var(--color-text-muted);
    border-bottom: 1px solid var(--color-border);
}

.history-item-status {
    display: inline-flex;
    align-items: center;
    gap: 0.375rem;
    font-weight: 500;
}

.history-item-status.success {
    color: var(--color-success);
}

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

.history-item-body {
    padding: 0;
}

.history-item-body .highlight {
    border: none;
    border-radius: 0;
}

.history-item-error {
    padding: 0.75rem 1rem;
    background-color: var(--color-danger-light);
    color: var(--color-danger);
    font-size: 0.875rem;
    font-family: var(--font-mono);
    border-top: 1px solid var(--color-border);
}

/* Badges */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 0.2rem 0.5rem;
    border-radius: var(--border-radius-sm);
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.025em;
}

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

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

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

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

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

.badge-owner {
    background-color: #fef3c7;
    color: #92400e;
}

.badge-admin {
    background-color: #e0e7ff;
    color: #4338ca;
}

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

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

/* Database card badges */
.database-badges {
    margin-left: auto;
    margin-right: 0.5rem;
}

.database-meta .owner-info {
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    color: var(--color-text-muted);
    font-size: 0.8rem;
}

/* Split Layout */
.split-layout {
    display: grid;
    grid-template-columns: 280px 1fr;
    gap: 1.5rem;
    position: relative;
    transition: grid-template-columns 0.3s ease;
}

.split-layout.sidebar-collapsed {
    grid-template-columns: 0 1fr;
    gap: 0;
}

.sidebar-toggle {
    position: fixed;
    left: 1rem;
    top: 50%;
    transform: translateY(-50%);
    z-index: 50;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    padding: 0.5rem;
    cursor: pointer;
    box-shadow: var(--shadow-md);
    display: none;
    transition: var(--transition);
}

.split-layout.sidebar-collapsed .sidebar-toggle,
.sidebar-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
}

.split-layout:not(.sidebar-collapsed) .sidebar-toggle {
    display: none;
}

.sidebar-toggle:hover {
    background: var(--color-surface-2);
    border-color: var(--color-primary);
}

.sidebar {
    position: sticky;
    top: 80px;
    align-self: start;
    max-height: calc(100vh - 100px);
    overflow-y: auto;
    overflow-x: hidden;
    transition: opacity 0.3s ease, transform 0.3s ease;
}

.sidebar-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.75rem 1rem;
    background: var(--color-surface-2);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius) var(--border-radius) 0 0;
    margin-bottom: -1px;
}

.sidebar-title {
    font-weight: 600;
    font-size: 0.875rem;
    color: var(--color-text);
}

.split-layout.sidebar-collapsed .sidebar {
    opacity: 0;
    transform: translateX(-100%);
    pointer-events: none;
    width: 0;
    min-width: 0;
    overflow: hidden;
}

@media (max-width: 900px) {
    .split-layout {
        grid-template-columns: 1fr;
    }
    
    .sidebar {
        position: static;
        max-height: none;
    }
    
    .sidebar-toggle {
        display: none !important;
    }
    
    .sidebar-header {
        display: none;
    }
}

/* Utility Classes */
.text-muted {
    color: var(--color-text-muted);
}

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

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

.text-mono {
    font-family: var(--font-mono);
}

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

.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }

.flex {
    display: flex;
}

.flex-wrap {
    flex-wrap: wrap;
}

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

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

.gap-1 { gap: 0.5rem; }
.gap-2 { gap: 1rem; }

/* Loading Spinner */
.spinner {
    width: 18px;
    height: 18px;
    border: 2px solid var(--color-border);
    border-top-color: var(--color-primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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

/* Dropdown */
.dropdown {
    position: relative;
    display: inline-block;
}

.dropdown-content {
    display: none;
    position: absolute;
    right: 0;
    top: 100%;
    margin-top: 4px;
    background-color: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    min-width: 180px;
    box-shadow: var(--shadow-lg);
    z-index: 100;
    overflow: hidden;
}

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

.dropdown-item {
    display: block;
    padding: 0.625rem 1rem;
    color: var(--color-text);
    text-decoration: none;
    transition: var(--transition);
    font-size: 0.875rem;
}

.dropdown-item:hover {
    background-color: var(--color-surface-2);
    color: var(--color-text);
}

.dropdown-item.danger {
    color: var(--color-danger);
}

.dropdown-item.danger:hover {
    background-color: var(--color-danger-light);
}

.dropdown-divider {
    border-top: 1px solid var(--color-border);
    margin: 0.25rem 0;
}

/* Confirm Dialog */
.confirm-overlay {
    position: fixed;
    inset: 0;
    background-color: rgba(15, 23, 42, 0.6);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 300;
    backdrop-filter: blur(2px);
}

.confirm-dialog {
    background-color: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    padding: 1.5rem;
    max-width: 400px;
    text-align: center;
    box-shadow: var(--shadow-lg);
}

.confirm-title {
    font-weight: 600;
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
    color: var(--color-text);
}

.confirm-message {
    color: var(--color-text-muted);
    margin-bottom: 1.5rem;
}

.confirm-actions {
    display: flex;
    gap: 0.5rem;
    justify-content: center;
}

/* Column Builder */
.column-builder {
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    padding: 1rem;
    background-color: var(--color-surface-2);
}

.column-row {
    display: grid;
    grid-template-columns: 1fr 120px 160px 100px 40px;
    gap: 0.5rem;
    align-items: end;
    margin-bottom: 0.5rem;
    padding: 0.75rem;
    background-color: var(--color-surface);
    border-radius: var(--border-radius);
    border: 1px solid var(--color-border);
}

.column-row .form-group {
    margin-bottom: 0;
}

.column-row .form-label {
    font-size: 0.75rem;
    margin-bottom: 0.25rem;
}

.column-row .form-input {
    font-size: 0.8rem;
    padding: 0.375rem 0.5rem;
}

.remove-column-btn {
    background: none;
    border: none;
    color: var(--color-danger);
    cursor: pointer;
    padding: 0.375rem;
    border-radius: var(--border-radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
}

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

.add-column-btn {
    margin-top: 0.5rem;
}

/* Toggle Switch */
.toggle-group {
    display: flex;
    background-color: var(--color-surface-2);
    border-radius: var(--border-radius);
    border: 1px solid var(--color-border);
    padding: 4px;
    margin-bottom: 1rem;
}

.toggle-btn {
    flex: 1;
    padding: 0.5rem 1rem;
    border: none;
    background: transparent;
    color: var(--color-text-muted);
    cursor: pointer;
    font-weight: 500;
    font-size: 0.875rem;
    border-radius: var(--border-radius-sm);
    transition: var(--transition);
}

.toggle-btn.active {
    background-color: var(--color-surface);
    color: var(--color-primary);
    box-shadow: var(--shadow-sm);
}

.toggle-btn:hover:not(.active) {
    color: var(--color-text);
}

/* Help Text */
.help-text {
    font-size: 0.8rem;
    color: var(--color-text-muted);
    margin-top: 0.375rem;
}

/* Index columns multi-select */
.checkbox-group {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: 0.5rem;
}

.checkbox-item {
    display: flex;
    align-items: center;
    gap: 0.25rem;
    padding: 0.25rem 0.5rem;
    background-color: var(--color-surface-2);
    border-radius: var(--border-radius-sm);
    font-size: 0.8rem;
    cursor: pointer;
}

.checkbox-item:hover {
    background-color: var(--color-surface-3);
}

.checkbox-item input {
    margin: 0;
}

/* ============================================
   EXCEL-LIKE SPREADSHEET STYLES
   ============================================ */

/* Spreadsheet Toolbar */
.spreadsheet-toolbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.5rem 0.75rem;
    background: linear-gradient(180deg, var(--color-surface-2) 0%, var(--color-surface) 100%);
    border-bottom: 1px solid var(--color-border);
    gap: 1rem;
    flex-wrap: wrap;
    min-height: 44px;
}

.spreadsheet-toolbar-left,
.spreadsheet-toolbar-right {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.spreadsheet-toolbar-center {
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

.toolbar-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.375rem;
    padding: 0.375rem 0.625rem;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-sm);
    color: var(--color-text-muted);
    font-size: 0.75rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    white-space: nowrap;
}

.toolbar-btn:hover:not(:disabled) {
    background: var(--color-surface-2);
    border-color: var(--color-border-dark);
    color: var(--color-text);
}

.toolbar-btn:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

.toolbar-btn svg {
    flex-shrink: 0;
}

#save-all-btn:not(:disabled) {
    background: var(--color-success-light);
    border-color: var(--color-success);
    color: var(--color-success);
}

#save-all-btn:not(:disabled):hover {
    background: var(--color-success);
    color: white;
}

#discard-all-btn:not(:disabled) {
    background: var(--color-danger-light);
    border-color: var(--color-danger);
    color: var(--color-danger);
}

#discard-all-btn:not(:disabled):hover {
    background: var(--color-danger);
    color: white;
}

.toolbar-divider {
    width: 1px;
    height: 20px;
    background: var(--color-border);
    margin: 0 0.25rem;
}

.selection-badge {
    display: inline-flex;
    align-items: center;
    padding: 0.25rem 0.5rem;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-sm);
    font-size: 0.75rem;
    color: var(--color-text-muted);
    font-family: var(--font-mono);
}

.modified-count {
    font-size: 0.75rem;
    color: var(--color-text-muted);
    font-weight: 500;
}

.modified-count.has-changes {
    color: var(--color-warning);
    font-weight: 600;
}

/* Spreadsheet Container */
.spreadsheet-container {
    overflow: auto;
    max-height: calc(100vh - 280px);
    background: var(--color-surface);
    border: none;
    position: relative;
}

.spreadsheet-container::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

.spreadsheet-container::-webkit-scrollbar-track {
    background: transparent;
}

.spreadsheet-container::-webkit-scrollbar-thumb {
    background: var(--color-border-dark);
    border-radius: 4px;
}

.spreadsheet-container::-webkit-scrollbar-thumb:hover {
    background: var(--color-text-muted);
}

.spreadsheet-container::-webkit-scrollbar-corner {
    background: var(--color-surface-2);
}

.spreadsheet {
    width: max-content;
    min-width: 100%;
    border-collapse: collapse;
    border-spacing: 0;
}

/* Spreadsheet Header */
.spreadsheet thead {
    position: sticky;
    top: 0;
    z-index: 20;
    background: var(--color-surface-2);
}

.spreadsheet-header {
    background: var(--color-surface-2);
}

.spreadsheet-body {
}

.spreadsheet-row {
    transition: background-color 0.15s;
}

.spreadsheet-row:hover .spreadsheet-cell {
    background: var(--color-primary-light);
}

.spreadsheet-row:hover .select-cell,
.spreadsheet-row:hover .row-number-cell {
    background: var(--color-surface-2);
}

.spreadsheet-row.row-selected .spreadsheet-cell {
    background: var(--color-info-light);
}

.spreadsheet-row.row-modified .spreadsheet-cell {
    background: var(--color-warning-light);
}

.spreadsheet-row.row-modified:hover .spreadsheet-cell {
    background: #fef0c7;
}

.spreadsheet-row.saving {
    opacity: 0.6;
    pointer-events: none;
}

/* Spreadsheet Cells */
.spreadsheet-cell {
    vertical-align: middle;
    padding: 0;
    border: 1px solid var(--color-border);
    font-size: 0.8125rem;
    position: relative;
    background: var(--color-surface);
    white-space: nowrap;
    box-sizing: border-box;
}

/* Header Cells */
.header-cell {
    background: var(--color-surface);
    font-weight: 600;
    color: var(--color-text-muted);
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border: 1px solid var(--color-border);
    border-bottom: 2px solid var(--color-border-dark);
    height: 40px;
    user-select: none;
    min-width: 120px;
    transition: background-color 0.2s;
}

.header-cell:hover {
    background: var(--color-surface-2);
}

.header-cell .header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    padding: 0.5rem 0.75rem;
    gap: 0.5rem;
    border: 1px solid var(--color-border-dark);
}

.header-cell .header-text {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    flex: 1;
}

.header-cell .col-resize-handle {
    position: absolute;
    right: -2px;
    top: 0;
    bottom: 0;
    width: 5px;
    cursor: col-resize;
    z-index: 30;
    background: transparent;
}

.header-cell .col-resize-handle:hover {
    background: var(--color-primary);
}

/* Special Cells */
.corner-cell {
    width: 36px;
    min-width: 36px;
    max-width: 36px;
    text-align: center;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-bottom: 2px solid var(--color-border-dark);
    position: sticky;
    left: 0;
    z-index: 30;
}

.corner-cell input[type="checkbox"] {
    cursor: pointer;
    accent-color: var(--color-primary);
    width: 14px;
    height: 14px;
}

.select-cell {
    width: 36px;
    min-width: 36px;
    max-width: 36px;
    text-align: center;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    position: sticky;
    left: 0;
    z-index: 15;
}

.select-cell input[type="checkbox"] {
    cursor: pointer;
    accent-color: var(--color-primary);
    width: 14px;
    height: 14px;
}

.row-number-header,
.row-number-cell {
    width: 50px;
    min-width: 50px;
    max-width: 50px;
    text-align: center;
    background: var(--color-surface);
    color: var(--color-text-muted);
    font-family: var(--font-mono);
    font-size: 0.7rem;
    font-weight: 500;
    position: sticky;
    left: 36px;
    z-index: 15;
    border: 1px solid var(--color-border);
    padding: 0.5rem 0.25rem;
    box-shadow: 2px 0 5px -2px rgba(0, 0, 0, 0.1);
}

.row-number-header {
    z-index: 30;
    background: var(--color-surface);
    border-bottom: 2px solid var(--color-border-dark);
}

.actions-header,
.actions-cell {
    width: 90px;
    min-width: 90px;
    max-width: 90px;
    text-align: center;
    position: sticky;
    right: 0;
    z-index: 15;
    border: 1px solid var(--color-border);
    border-left: 1px solid var(--color-border);
    background: var(--color-surface);
    box-shadow: -2px 0 5px -2px rgba(0, 0, 0, 0.1);
}

.actions-header {
    z-index: 30;
    background: var(--color-surface);
    font-weight: 600;
    color: var(--color-text-muted);
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border-bottom: 2px solid var(--color-border-dark);
}

.spreadsheet-row:hover .actions-cell {
    background: var(--color-surface); /* Keep it white or maybe slightly different */
}

.spreadsheet-row.row-modified .actions-cell {
    background: var(--color-warning-light);
}

/* Data Cells */
.data-cell {
    background: var(--color-surface);
    cursor: cell;
    transition: background-color 0.1s, box-shadow 0.1s;
    min-width: 120px;
    overflow: hidden;
    border: 1px solid var(--color-border);
}

.data-cell:hover {
    background: var(--color-surface-2);
}

.data-cell.selected {
    background: var(--color-primary-light);
    box-shadow: inset 0 0 0 2px var(--color-primary);
    z-index: 5;
}

.data-cell.editing {
    background: var(--color-surface);
    box-shadow: inset 0 0 0 2px var(--color-primary);
    z-index: 10;
}

.data-cell.modified {
    background: var(--color-warning-light);
}

.data-cell.modified::after {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 0;
    height: 0;
    border-style: solid;
    border-width: 0 8px 8px 0;
    border-color: transparent var(--color-warning) transparent transparent;
}

.data-cell.saved {
    animation: cellSaved 0.5s ease;
}

@keyframes cellSaved {
    0% { background: var(--color-success-light); }
    100% { background: var(--color-surface); }
}

.cell-content {
    width: 100%;
    padding: 0.5rem 0.75rem;
    font-family: var(--font-mono);
    font-size: 0.8125rem;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    outline: none;
    min-height: 1.5em;
}

.cell-content[contenteditable="true"] {
    white-space: pre-wrap;
    word-break: break-word;
    background: var(--color-surface);
}

.cell-content .null-value {
    color: var(--color-text-light);
    font-style: italic;
    font-size: 0.75rem;
}

/* Row Actions */
.row-actions {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.25rem;
    padding: 0.25rem;
}

.action-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    padding: 0;
    background: transparent;
    border: none;
    border-radius: var(--border-radius-sm);
    color: var(--color-text-muted);
    cursor: pointer;
    transition: var(--transition);
}

.action-btn:hover {
    background: var(--color-surface-2);
    color: var(--color-text);
}

.action-btn.save-btn {
    color: var(--color-success);
}

.action-btn.save-btn:hover {
    background: var(--color-success-light);
}

.action-btn.reset-btn {
    color: var(--color-warning);
}

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

.action-btn.delete-btn {
    color: var(--color-danger);
}

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

/* Empty State */
.empty-row {
    display: table-row;
}

.empty-row .spreadsheet-cell {
    text-align: center;
    color: var(--color-text-muted);
    padding: 2rem 1rem;
}

/* Responsive */
@media (max-width: 768px) {
    .spreadsheet-toolbar {
        flex-direction: column;
        align-items: stretch;
        gap: 0.5rem;
    }
    
    .spreadsheet-toolbar-center {
        justify-content: center;
        flex-wrap: wrap;
    }
    
    .spreadsheet-toolbar-right {
        justify-content: center;
    }
    
    .toolbar-btn span {
        display: none;
    }
    
    .spreadsheet-container {
        max-height: calc(100vh - 320px);
    }
    
    .spreadsheet-cell {
        min-width: 80px;
        width: 120px;
    }
}

@media (max-width: 480px) {
    .selection-info {
        display: none;
    }
    
    .toolbar-divider {
        display: none;
    }
}

/* Dashboard Detail */
.dashboard-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 1rem;
    margin-bottom: 1.5rem;
    flex-wrap: wrap;
}

.dashboard-header-left {
    flex: 1;
    min-width: 200px;
}

.dashboard-header-right {
    display: flex;
    gap: 0.75rem;
    align-items: center;
    flex-wrap: wrap;
}

.dashboard-switcher {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.dashboard-switcher select {
    min-width: 180px;
}

.charts-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(400px, 1fr));
    gap: 1.5rem;
}

@media (max-width: 500px) {
    .charts-grid {
        grid-template-columns: 1fr;
    }
}

.chart-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    display: flex;
    flex-direction: column;
}

.chart-card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.75rem 1rem;
    border-bottom: 1px solid var(--color-border);
    background: var(--color-surface-2);
}

.chart-card-title {
    font-weight: 600;
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--color-text);
}

.chart-type-badge {
    font-size: 0.7rem;
    padding: 0.15rem 0.4rem;
    background: var(--color-primary-light);
    color: var(--color-primary);
    border-radius: var(--border-radius-sm);
    font-weight: 500;
    text-transform: uppercase;
}

.chart-card-actions {
    display: flex;
    gap: 0.5rem;
}

.chart-card-body {
    padding: 1rem;
    height: 300px;
    position: relative;
    flex: 1;
}

.chart-error {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100%;
    color: var(--color-danger);
    text-align: center;
    padding: 1rem;
    flex-direction: column;
    gap: 0.5rem;
}

.chart-error svg {
    opacity: 0.5;
}

.empty-dashboard {
    text-align: center;
    padding: 4rem 2rem;
    background: var(--color-surface);
    border-radius: var(--border-radius);
    border: 1px dashed var(--color-border);
}

.empty-dashboard svg {
    width: 64px;
    height: 64px;
    margin-bottom: 1rem;
    opacity: 0.5;
}

.dashboard-info {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 0.5rem;
}

.dashboard-info .default-badge {
    font-size: 0.7rem;
    padding: 0.15rem 0.5rem;
    background: var(--color-primary);
    color: white;
    border-radius: 999px;
    font-weight: 500;
}

.auto-refresh-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    font-size: 0.65rem;
    padding: 0.1rem 0.4rem;
    background: var(--color-success-light);
    color: var(--color-success);
    border-radius: var(--border-radius-sm);
    font-weight: 500;
}

.auto-refresh-badge svg {
    animation: spin 2s linear infinite;
}

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