/**
 * File: dmsi-ddls-digital-downloads-licensing-subscriptions/assets/css/dmsilm-email-admin.css
 * Version: 1.0.0
 * Description: Styling for email administration interface
 *
 * @package    DMSILM
 * @subpackage Assets
 * @since      1.0.0
 */

/* ==========================================================================
   Settings Page - Tab Navigation
   ========================================================================== */

.dmsilm-email-settings .nav-tab-wrapper {
    margin: 20px 0;
    border-bottom: 1px solid #ccc;
}

.dmsilm-email-settings .nav-tab {
    padding: 10px 20px;
    font-size: 14px;
    font-weight: 500;
    border: 1px solid #ccc;
    border-bottom: none;
    background: #f0f0f1;
    color: #50575e;
}

.dmsilm-email-settings .nav-tab:hover {
    background: #fff;
    color: #2271b1;
}

.dmsilm-email-settings .nav-tab-active {
    background: #fff;
    border-bottom-color: #fff;
    color: #2271b1;
}

/* ==========================================================================
   Settings Page - Tab Content
   ========================================================================== */

.dmsilm-email-settings .tab-content {
    display: none;
    background: #fff;
    padding: 20px;
    border: 1px solid #ccc;
    border-top: none;
}

.dmsilm-email-settings .tab-content.active {
    display: block;
}

/* Form Layout - Two Column Responsive */
.dmsilm-settings-section {
    margin-bottom: 30px;
}

.dmsilm-settings-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-bottom: 15px;
}

.dmsilm-settings-row.full-width {
    grid-template-columns: 1fr;
}

.dmsilm-form-field {
    margin-bottom: 0;
}

.dmsilm-form-field label {
    display: block;
    margin-bottom: 5px;
    font-weight: 600;
    color: #1d2327;
}

.dmsilm-form-field input[type="text"],
.dmsilm-form-field input[type="email"],
.dmsilm-form-field input[type="number"],
.dmsilm-form-field select,
.dmsilm-form-field textarea {
    width: 100%;
    padding: 8px 12px;
    border: 1px solid #8c8f94;
    border-radius: 4px;
    font-size: 14px;
}

.dmsilm-form-field textarea {
    min-height: 100px;
    font-family: monospace;
}

.dmsilm-form-field .description {
    display: block;
    margin-top: 5px;
    font-size: 13px;
    color: #646970;
    font-style: italic;
}

/* Checkbox and Radio Styles */
.dmsilm-form-field input[type="checkbox"],
.dmsilm-form-field input[type="radio"] {
    margin-right: 8px;
}

.dmsilm-checkbox-group label,
.dmsilm-radio-group label {
    display: block;
    margin-bottom: 10px;
    font-weight: normal;
}

/* ==========================================================================
   Status Badges
   ========================================================================== */

.dmsilm-status-badge {
    display: inline-block;
    padding: 4px 10px;
    border-radius: 12px;
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    line-height: 1;
}

.dmsilm-status-badge.sent {
    background: #d5e8d4;
    color: #2e7d32;
}

.dmsilm-status-badge.failed {
    background: #fce4ec;
    color: #c62828;
}

.dmsilm-status-badge.queued {
    background: #e3f2fd;
    color: #1565c0;
}

.dmsilm-status-badge.skipped {
    background: #f5f5f5;
    color: #616161;
}

.dmsilm-status-badge.active {
    background: #d5e8d4;
    color: #2e7d32;
}

.dmsilm-status-badge.custom {
    background: #fff3cd;
    color: #856404;
}

.dmsilm-status-badge.disabled {
    background: #f5f5f5;
    color: #616161;
}

.dmsilm-status-badge.default {
    background: #e3f2fd;
    color: #1565c0;
}

/* ==========================================================================
   Summary Cards (Stats Dashboard)
   ========================================================================== */

.dmsilm-summary-cards {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    margin-bottom: 30px;
}

.dmsilm-summary-card {
    background: #fff;
    padding: 20px;
    border: 1px solid #c3c4c7;
    border-radius: 4px;
    box-shadow: 0 1px 1px rgba(0,0,0,.04);
}

.dmsilm-summary-card .card-title {
    font-size: 13px;
    color: #646970;
    margin-bottom: 10px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.dmsilm-summary-card .card-value {
    font-size: 32px;
    font-weight: 600;
    color: #1d2327;
    line-height: 1;
}

.dmsilm-summary-card .card-label {
    font-size: 12px;
    color: #646970;
    margin-top: 5px;
}

.dmsilm-summary-card .dashicons {
    float: right;
    font-size: 40px;
    color: #c3c4c7;
}

/* ==========================================================================
   Template Editor Layout
   ========================================================================== */

/* Outer wrapper — standard block layout for header elements */
.dmsilm-template-editor {
    margin-top: 10px;
}

/* Editor container — holds toolbar + layout */
.dmsilm-editor-container {
    margin-top: 15px;
}

/* Toolbar above the 3-column layout */
.dmsilm-editor-toolbar {
    padding: 10px 15px;
    background: #f0f0f1;
    border: 1px solid #c3c4c7;
    border-radius: 4px 4px 0 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 10px;
}

.dmsilm-toolbar-left {
    display: flex;
    gap: 10px;
    align-items: center;
}

.dmsilm-toolbar-right {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.dmsilm-editor-toolbar select {
    padding: 4px 28px 4px 8px;
    border: 1px solid #8c8f94;
    border-radius: 4px;
    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none;
    background: #fff url('data:image/svg+xml;charset=US-ASCII,%3Csvg%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20width%3D%2212%22%20height%3D%2212%22%20viewBox%3D%220%200%2012%2012%22%3E%3Cpath%20fill%3D%22%23646970%22%20d%3D%22M6%208L1%203h10z%22%2F%3E%3C%2Fsvg%3E') no-repeat right 8px center;
    background-size: 12px;
    min-width: 120px;
}

.dmsilm-editor-toolbar label {
    font-weight: 600;
    font-size: 13px;
}

/* 3-column grid: sidebar | editor | preview */
.dmsilm-editor-layout {
    display: grid;
    grid-template-columns: 250px 1fr 400px;
    gap: 0;
    height: calc(100vh - 250px);
    min-height: 500px;
    border: 1px solid #c3c4c7;
    border-top: none;
    border-radius: 0 0 4px 4px;
    overflow: hidden;
}

/* Variable Sidebar */
.dmsilm-variable-sidebar {
    background: #fff;
    border-right: 1px solid #c3c4c7;
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.dmsilm-variable-sidebar.collapsed {
    width: 40px;
    min-width: 40px;
}

.dmsilm-sidebar-header {
    padding: 12px 15px;
    background: #f0f0f1;
    border-bottom: 1px solid #c3c4c7;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.dmsilm-sidebar-header h3 {
    margin: 0;
    font-size: 14px;
    font-weight: 600;
}

.dmsilm-sidebar-toggle {
    cursor: pointer;
    padding: 2px 5px;
    color: #646970;
    background: none;
    border: 1px solid #c3c4c7;
    border-radius: 3px;
}

.dmsilm-sidebar-toggle:hover {
    color: #2271b1;
    border-color: #2271b1;
}

.dmsilm-sidebar-search {
    padding: 10px;
    border-bottom: 1px solid #c3c4c7;
}

.dmsilm-sidebar-search input,
.dmsilm-search-input {
    width: 100%;
    padding: 6px 10px;
    border: 1px solid #8c8f94;
    border-radius: 4px;
    font-size: 13px;
    box-sizing: border-box;
}

.dmsilm-sidebar-content {
    flex: 1;
    overflow-y: auto;
    padding: 10px;
}

.dmsilm-variable-category {
    margin-bottom: 10px;
}

.dmsilm-category-title {
    margin: 0;
    font-size: 13px;
    font-weight: 600;
}

.dmsilm-category-toggle {
    width: 100%;
    padding: 8px 10px;
    background: #f0f0f1;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-weight: 600;
    font-size: 13px;
    display: flex;
    align-items: center;
    gap: 5px;
    text-align: left;
}

.dmsilm-category-toggle:hover {
    background: #e5e5e5;
}

.dmsilm-category-toggle .dashicons {
    font-size: 16px;
    transition: transform 0.2s;
}

.dmsilm-category-count {
    font-weight: normal;
    color: #646970;
}

.dmsilm-category-variables {
    padding: 5px 0;
}

.dmsilm-variable-item {
    padding: 6px 10px 6px 15px;
    margin: 2px 0;
    cursor: pointer;
    border-radius: 3px;
}

.dmsilm-variable-item:hover {
    background: #f0f6fc;
}

.dmsilm-variable-insert {
    display: inline-block;
    font-size: 12px;
    font-family: monospace;
    color: #2271b1;
    font-weight: 600;
    background: #f0f6fc;
    border: 1px solid #c3d9f0;
    border-radius: 3px;
    padding: 2px 6px;
    cursor: pointer;
}

.dmsilm-variable-insert:hover {
    background: #dce8f5;
    border-color: #2271b1;
}

.dmsilm-variable-description {
    font-size: 12px;
    color: #50575e;
    margin-left: 5px;
}

.dmsilm-variable-example {
    display: block;
    color: #646970;
    font-size: 11px;
    font-style: italic;
    margin-top: 2px;
    padding-left: 5px;
}

/* Editor Panel (middle column) */
.dmsilm-editor-panel {
    display: flex;
    flex-direction: column;
    background: #fff;
    overflow: hidden;
    border-right: 1px solid #c3c4c7;
}

.dmsilm-editor-panel textarea {
    flex: 1;
    width: 100%;
    border: none;
    padding: 10px;
    font-family: monospace;
    font-size: 13px;
    resize: none;
    box-sizing: border-box;
}

.dmsilm-editor-panel .CodeMirror {
    flex: 1;
    height: auto;
    font-size: 13px;
    border: none;
}

.dmsilm-editor-footer {
    padding: 6px 15px;
    background: #f0f0f1;
    border-top: 1px solid #c3c4c7;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 12px;
    color: #646970;
}

.dmsilm-editor-status {
    font-weight: 500;
}

.dmsilm-editor-info {
    color: #646970;
}

/* Preview Panel (right column) */
.dmsilm-preview-panel {
    background: #fff;
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.dmsilm-preview-header {
    padding: 10px 15px;
    background: #f0f0f1;
    border-bottom: 1px solid #c3c4c7;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 8px;
}

.dmsilm-preview-header h3 {
    margin: 0;
    font-size: 14px;
    font-weight: 600;
}

.dmsilm-preview-controls {
    display: flex;
    gap: 4px;
    flex-wrap: wrap;
}

.dmsilm-preview-mode,
.dmsilm-preview-refresh {
    padding: 3px 8px !important;
    font-size: 12px !important;
}

.dmsilm-preview-mode.active {
    background: #2271b1 !important;
    color: #fff !important;
    border-color: #2271b1 !important;
}

.dmsilm-preview-content {
    flex: 1;
    overflow: auto;
    padding: 15px;
    background: #f6f7f7;
}

.dmsilm-preview-loading {
    text-align: center;
    padding: 40px 20px;
    color: #646970;
}

.dmsilm-preview-content iframe {
    width: 100%;
    border: none;
    min-height: 400px;
    background: #fff;
    box-shadow: 0 1px 4px rgba(0,0,0,0.1);
}

.dmsilm-preview-content iframe.dmsilm-preview-mobile {
    max-width: 320px;
    margin: 0 auto;
    display: block;
}

/* Validation Results */
.dmsilm-validation-results {
    margin-top: 15px;
    background: #fff;
    border: 1px solid #c3c4c7;
    border-radius: 4px;
    padding: 15px;
}

.dmsilm-validation-results h3 {
    margin: 0 0 10px 0;
    font-size: 14px;
}

/* ==========================================================================
   Template Preview (standalone read-only view)
   ========================================================================== */

.dmsilm-preview-standalone {
    margin-top: 15px;
    background: #fff;
    border: 1px solid #c3c4c7;
    border-radius: 4px;
    overflow: hidden;
}

.dmsilm-preview-toolbar-standalone {
    padding: 10px 15px;
    background: #f0f0f1;
    border-bottom: 1px solid #c3c4c7;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 13px;
    color: #50575e;
}

.dmsilm-preview-format-label {
    font-weight: 600;
}

.dmsilm-preview-data-label {
    font-style: italic;
    color: #646970;
}

.dmsilm-preview-frame-container {
    padding: 20px;
    background: #f6f7f7;
    min-height: 400px;
}

.dmsilm-preview-standalone-iframe {
    width: 100%;
    max-width: 650px;
    min-height: 500px;
    border: none;
    background: #fff;
    box-shadow: 0 1px 6px rgba(0,0,0,0.1);
    margin: 0 auto;
    display: block;
}

.dmsilm-preview-plain-container {
    padding: 20px;
}

.dmsilm-preview-plain-container pre {
    font-family: monospace;
    font-size: 13px;
    line-height: 1.6;
    white-space: pre-wrap;
    word-wrap: break-word;
    margin: 0;
    padding: 15px;
    background: #f6f7f7;
    border-radius: 4px;
}

/* ==========================================================================
   Email Logs - List Table
   ========================================================================== */

.dmsilm-email-logs .tablenav {
    margin: 15px 0;
}

.dmsilm-email-logs .tablenav .alignleft {
    margin-right: 10px;
}

.dmsilm-email-logs .tablenav select {
    margin-right: 5px;
}

.dmsilm-email-logs .column-status {
    width: 100px;
}

.dmsilm-email-logs .column-date {
    width: 150px;
}

.dmsilm-email-logs .column-actions {
    width: 100px;
}

/* Email Detail Modal */
.dmsilm-modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0,0,0,0.6);
    z-index: 100000;
    display: flex;
    align-items: center;
    justify-content: center;
}

.dmsilm-modal-content {
    background: #fff;
    width: 90%;
    max-width: 600px;
    max-height: 90vh;
    border-radius: 8px;
    box-shadow: 0 8px 30px rgba(0,0,0,0.3);
    display: flex;
    flex-direction: column;
    position: relative;
    overflow: hidden;
}

.dmsilm-modal-content > .dmsilm-modal-close {
    position: absolute;
    top: 12px;
    right: 16px;
    cursor: pointer;
    font-size: 28px;
    color: #646970;
    line-height: 1;
    z-index: 1;
    background: none;
    border: none;
    padding: 4px;
}

.dmsilm-modal-content > .dmsilm-modal-close:hover {
    color: #d63638;
}

.dmsilm-modal-body {
    padding: 24px;
    overflow-y: auto;
    flex: 1;
}

.dmsilm-modal-body h2 {
    margin: 0 0 20px 0;
    font-size: 18px;
    font-weight: 600;
    color: #1d2327;
    padding-bottom: 12px;
    border-bottom: 2px solid #2271b1;
}

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

.dmsilm-detail-table tr {
    border-bottom: 1px solid #f0f0f1;
}

.dmsilm-detail-table tr:last-child {
    border-bottom: none;
}

.dmsilm-detail-table th {
    text-align: left;
    padding: 10px 12px;
    font-weight: 600;
    color: #50575e;
    white-space: nowrap;
    width: 100px;
    font-size: 13px;
    vertical-align: top;
}

.dmsilm-detail-table td {
    padding: 10px 12px;
    color: #1d2327;
    font-size: 13px;
    word-break: break-word;
}

.dmsilm-detail-table code {
    background: #fcecec;
    color: #c62828;
    padding: 3px 6px;
    border-radius: 3px;
    font-size: 12px;
}

.dmsilm-modal-actions {
    padding: 16px 24px;
    border-top: 1px solid #c3c4c7;
    background: #f6f7f7;
    display: flex;
    justify-content: flex-end;
    gap: 8px;
    border-radius: 0 0 8px 8px;
}

.dmsilm-modal-loading {
    text-align: center;
    padding: 40px 20px;
}

/* ==========================================================================
   Stats Dashboard - Header
   ========================================================================== */

.dmsilm-stats-header {
    background: #fff;
    border: 1px solid #c3c4c7;
    border-radius: 4px;
    margin-bottom: 24px;
    box-shadow: 0 1px 1px rgba(0, 0, 0, 0.04);
}

.dmsilm-stats-header-top {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 20px;
    border-bottom: 1px solid #f0f0f1;
    flex-wrap: wrap;
    gap: 12px;
}

.dmsilm-stats-header-title {
    display: flex;
    align-items: center;
    gap: 12px;
}

.dmsilm-stats-header-title h1 {
    margin: 0;
    padding: 0;
    font-size: 21px;
    font-weight: 600;
    color: #1d2327;
    line-height: 1.4;
}

.dmsilm-stats-header-title .button {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 4px 12px;
    font-size: 12px;
    text-decoration: none;
}

.dmsilm-stats-header-title .button .dashicons {
    font-size: 16px;
    width: 16px;
    height: 16px;
    line-height: 1;
}

.dmsilm-stats-header-controls {
    display: flex;
    align-items: center;
}

.dmsilm-stats-header-controls .dmsilm-filter-form {
    display: flex;
    align-items: center;
    gap: 10px;
}

.dmsilm-stats-header-controls label {
    font-weight: 600;
    font-size: 13px;
    color: #50575e;
}

.dmsilm-stats-header-controls select {
    padding: 6px 30px 6px 10px;
    border: 1px solid #8c8f94;
    border-radius: 4px;
    font-size: 13px;
}

.dmsilm-stats-header-controls .button-primary {
    display: inline-flex;
    align-items: center;
    gap: 4px;
}

.dmsilm-stats-header-controls .button-primary .dashicons {
    font-size: 16px;
    width: 16px;
    height: 16px;
    line-height: 1;
}

/* ==========================================================================
   Stats Dashboard - Widget Cards
   ========================================================================== */

.dmsilm-stats-widgets {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 0;
    border-top: 1px solid #f0f0f1;
}

.dmsilm-widget-card {
    background: #fff;
    padding: 20px;
    display: flex;
    align-items: flex-start;
    gap: 16px;
    border-right: 1px solid #f0f0f1;
}

.dmsilm-widget-card:last-child {
    border-right: none;
}

.dmsilm-widget-icon {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.dmsilm-widget-icon .dashicons {
    font-size: 24px;
    width: 24px;
    height: 24px;
}

.dmsilm-widget-icon-sent {
    background: #e3f2fd;
    color: #1565c0;
}

.dmsilm-widget-icon-rate {
    background: #e8f5e9;
    color: #2e7d32;
}

.dmsilm-widget-icon-failed {
    background: #fce4ec;
    color: #c62828;
}

.dmsilm-widget-icon-queued {
    background: #fff3e0;
    color: #e65100;
}

.dmsilm-widget-content {
    flex: 1;
    min-width: 0;
}

.dmsilm-widget-value {
    font-size: 28px;
    font-weight: 700;
    color: #1d2327;
    line-height: 1.2;
}

.dmsilm-widget-label {
    font-size: 13px;
    color: #646970;
    margin-top: 2px;
    font-weight: 500;
}

.dmsilm-widget-meta {
    font-size: 12px;
    color: #888;
    margin-top: 4px;
}

.dmsilm-widget-meta a {
    color: #2271b1;
    text-decoration: none;
}

.dmsilm-widget-meta a:hover {
    text-decoration: underline;
}

/* ==========================================================================
   Stats Dashboard - Charts
   ========================================================================== */

.dmsilm-stats-charts {
    margin-bottom: 24px;
}

.dmsilm-chart-row {
    display: flex;
    gap: 16px;
    margin-bottom: 16px;
}

.dmsilm-chart-container {
    background: #fff;
    padding: 20px;
    border: 1px solid #c3c4c7;
    border-radius: 4px;
    margin-bottom: 0;
}

.dmsilm-chart-container h2 {
    margin: 0 0 16px 0;
    font-size: 15px;
    font-weight: 600;
    color: #1d2327;
}

.dmsilm-chart-container h3 {
    margin: 0 0 20px 0;
    font-size: 16px;
    font-weight: 600;
}

.dmsilm-chart-container canvas {
    max-height: 300px;
}

.dmsilm-chart-large {
    flex: 1;
}

.dmsilm-chart-small {
    flex: 1;
}

.dmsilm-charts-grid {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 20px;
    margin-bottom: 20px;
}

/* ==========================================================================
   Stats Dashboard - Data Tables
   ========================================================================== */

.dmsilm-stats-tables {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin-bottom: 24px;
}

.dmsilm-table-container {
    background: #fff;
    border: 1px solid #c3c4c7;
    border-radius: 4px;
    padding: 20px;
}

.dmsilm-table-container h2 {
    margin: 0 0 16px 0;
    font-size: 15px;
    font-weight: 600;
    color: #1d2327;
}

.dmsilm-table-container .wp-list-table {
    border: none;
}

/* Badges for template type */
.dmsilm-badge {
    display: inline-block;
    padding: 3px 8px;
    border-radius: 3px;
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.3px;
}

.dmsilm-badge-customer {
    background: #e3f2fd;
    color: #1565c0;
}

.dmsilm-badge-admin {
    background: #f3e5f5;
    color: #7b1fa2;
}

/* Success rate indicator */
.dmsilm-success-rate {
    font-weight: 600;
    font-size: 13px;
}

.dmsilm-rate-excellent {
    color: #2e7d32;
}

.dmsilm-rate-good {
    color: #558b2f;
}

.dmsilm-rate-fair {
    color: #f57f17;
}

.dmsilm-rate-poor {
    color: #c62828;
}

/* Error message in failures table */
.dmsilm-error-message {
    background: #fcecec;
    color: #c62828;
    padding: 2px 6px;
    border-radius: 3px;
    font-size: 12px;
    word-break: break-word;
}

/* ==========================================================================
   Stats Dashboard - Queue Status
   ========================================================================== */

.dmsilm-stats-queue {
    background: #fff;
    border: 1px solid #c3c4c7;
    border-radius: 4px;
    padding: 20px;
    margin-bottom: 24px;
}

.dmsilm-stats-queue h2 {
    margin: 0 0 16px 0;
    font-size: 15px;
    font-weight: 600;
    color: #1d2327;
}

.dmsilm-queue-status-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
}

.dmsilm-queue-stat {
    text-align: center;
    padding: 16px;
    background: #f6f7f7;
    border-radius: 4px;
}

.dmsilm-queue-label {
    font-size: 13px;
    font-weight: 600;
    color: #50575e;
    margin-bottom: 8px;
}

.dmsilm-queue-value {
    font-size: 24px;
    font-weight: 700;
    color: #1d2327;
}

.dmsilm-queue-value-failed {
    color: #c62828;
}

.dmsilm-queue-info {
    margin-top: 12px;
    padding: 10px 12px;
    background: #f0f6fc;
    border-left: 4px solid #2271b1;
    border-radius: 0 4px 4px 0;
    font-size: 13px;
    color: #50575e;
}

.dmsilm-queue-info .dashicons {
    font-size: 16px;
    width: 16px;
    height: 16px;
    vertical-align: text-bottom;
    margin-right: 4px;
    color: #2271b1;
}

/* ==========================================================================
   Buttons
   ========================================================================== */

.dmsilm-button {
    display: inline-block;
    padding: 8px 16px;
    border: 1px solid #2271b1;
    border-radius: 4px;
    background: #2271b1;
    color: #fff;
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    text-decoration: none;
    transition: all 0.2s;
}

.dmsilm-button:hover {
    background: #135e96;
    border-color: #135e96;
    color: #fff;
}

.dmsilm-button.secondary {
    background: #fff;
    color: #2271b1;
}

.dmsilm-button.secondary:hover {
    background: #f0f6fc;
}

.dmsilm-button.danger {
    background: #d63638;
    border-color: #d63638;
}

.dmsilm-button.danger:hover {
    background: #b32d2e;
    border-color: #b32d2e;
}

.dmsilm-button.small {
    padding: 4px 10px;
    font-size: 12px;
}

.dmsilm-button:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* ==========================================================================
   Loading States
   ========================================================================== */

.dmsilm-loading {
    position: relative;
    pointer-events: none;
    opacity: 0.6;
}

.dmsilm-loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 20px;
    height: 20px;
    margin: -10px 0 0 -10px;
    border: 2px solid #2271b1;
    border-top-color: transparent;
    border-radius: 50%;
    animation: dmsilm-spin 0.6s linear infinite;
}

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

.dmsilm-spinner {
    display: inline-block;
    width: 16px;
    height: 16px;
    border: 2px solid #c3c4c7;
    border-top-color: #2271b1;
    border-radius: 50%;
    animation: dmsilm-spin 0.6s linear infinite;
}

/* ==========================================================================
   Responsive Design
   ========================================================================== */

/* Tablet (768px - 1199px) */
@media (max-width: 1199px) {
    .dmsilm-editor-layout {
        grid-template-columns: 200px 1fr;
        height: auto;
        min-height: 500px;
    }

    .dmsilm-preview-panel {
        grid-column: 1 / -1;
        min-height: 350px;
    }

    .dmsilm-summary-cards {
        grid-template-columns: repeat(2, 1fr);
    }

    .dmsilm-stats-header-top {
        flex-direction: column;
        align-items: flex-start;
    }

    .dmsilm-stats-widgets {
        grid-template-columns: repeat(2, 1fr);
    }

    .dmsilm-widget-card:nth-child(2) {
        border-right: none;
    }

    .dmsilm-widget-card:nth-child(-n+2) {
        border-bottom: 1px solid #f0f0f1;
    }

    .dmsilm-charts-grid {
        grid-template-columns: 1fr;
    }

    .dmsilm-chart-row {
        flex-direction: column;
    }

    .dmsilm-stats-tables {
        grid-template-columns: 1fr;
    }

    .dmsilm-queue-status-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* Mobile (< 768px) */
@media (max-width: 767px) {
    .dmsilm-editor-layout {
        grid-template-columns: 1fr;
        height: auto;
    }

    .dmsilm-variable-sidebar {
        max-height: 200px;
        border-right: none;
        border-bottom: 1px solid #c3c4c7;
    }

    .dmsilm-editor-panel {
        min-height: 300px;
        border-right: none;
        border-bottom: 1px solid #c3c4c7;
    }

    .dmsilm-preview-panel {
        min-height: 300px;
    }

    .dmsilm-settings-row {
        grid-template-columns: 1fr;
    }

    .dmsilm-summary-cards {
        grid-template-columns: 1fr;
    }

    .dmsilm-stats-widgets {
        grid-template-columns: 1fr;
    }

    .dmsilm-widget-card {
        border-right: none;
        border-bottom: 1px solid #f0f0f1;
    }

    .dmsilm-widget-card:last-child {
        border-bottom: none;
    }

    .dmsilm-stats-header-controls .dmsilm-filter-form {
        flex-wrap: wrap;
    }

    .dmsilm-stats-header-title {
        flex-wrap: wrap;
    }

    .dmsilm-queue-status-grid {
        grid-template-columns: 1fr 1fr;
    }

    .dmsilm-modal-content {
        width: 95%;
        max-height: 95vh;
    }
}

/* ==========================================================================
   Accessibility
   ========================================================================== */

.dmsilm-button:focus,
.dmsilm-form-field input:focus,
.dmsilm-form-field select:focus,
.dmsilm-form-field textarea:focus {
    outline: 2px solid #2271b1;
    outline-offset: 2px;
}

.dmsilm-variable-item:focus {
    outline: 2px solid #2271b1;
    outline-offset: -2px;
}

/* ==========================================================================
   Email Logs - Email UID column and detail header
   ========================================================================== */

.dmsilm-email-logs .column-email_uid {
    width: 160px;
}

code.dmsilm-email-uid {
    font-family: monospace;
    font-size: 12px;
    background: #f0f6fc;
    color: #2271b1;
    padding: 2px 6px;
    border-radius: 3px;
    border: 1px solid #c3d9f0;
    white-space: nowrap;
}

.dmsilm-email-uid-header {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 16px;
    padding: 10px 14px;
    background: #f0f6fc;
    border: 1px solid #c3d9f0;
    border-radius: 4px;
}

.dmsilm-email-uid-label {
    font-weight: 600;
    font-size: 13px;
    color: #50575e;
    white-space: nowrap;
}

.dmsilm-email-uid-header code.dmsilm-email-uid {
    font-size: 13px;
    padding: 3px 8px;
}

.dmsilm-copy-uid {
    flex-shrink: 0;
}

/* ==========================================================================
   Print Styles (for reports)
   ========================================================================== */

@media print {
    .dmsilm-email-settings .nav-tab-wrapper,
    .dmsilm-editor-toolbar,
    .dmsilm-preview-toolbar,
    .dmsilm-button,
    .tablenav {
        display: none;
    }

    .dmsilm-editor-layout {
        grid-template-columns: 1fr;
    }

    .dmsilm-variable-sidebar,
    .dmsilm-preview-panel {
        display: none;
    }

    .dmsilm-modal-content {
        box-shadow: none;
    }
}