rx-admin.css

I’ll build this as a strong rx-admin.css foundation for RX Theme admin UI: variables, layout, cards, forms, notices, tables, tabs, badges, dark-mode-ready support, responsive behavior, and WordPress admin compatibility.

Friend, place this code in:

assets/static/static-css/rx-admin.css

This is an advanced admin CSS foundation for RX Theme. It is safe for WordPress admin pages and designed for your RX Theme settings panel, cards, forms, buttons, tabs, tables, notices, status badges, responsive layout, and future plugin/theme options.

/*!
 * RX Theme Admin CSS
 * File: assets/static/static-css/rx-admin.css
 * Purpose: Advanced WordPress admin UI styling for RX Theme
 * Author: RxHarun
 * Project: RX Theme
 */

/* =========================================================
   01. RX ADMIN ROOT VARIABLES
========================================================= */

:root {
  --rx-admin-font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen-Sans, Ubuntu, Cantarell, "Helvetica Neue", sans-serif;

  --rx-admin-primary: #2563eb;
  --rx-admin-primary-hover: #1d4ed8;
  --rx-admin-primary-soft: #eff6ff;

  --rx-admin-secondary: #0f172a;
  --rx-admin-success: #16a34a;
  --rx-admin-warning: #f59e0b;
  --rx-admin-danger: #dc2626;
  --rx-admin-info: #0284c7;

  --rx-admin-bg: #f6f7fb;
  --rx-admin-surface: #ffffff;
  --rx-admin-surface-soft: #f8fafc;

  --rx-admin-text: #111827;
  --rx-admin-text-muted: #64748b;
  --rx-admin-text-light: #94a3b8;

  --rx-admin-border: #e5e7eb;
  --rx-admin-border-strong: #cbd5e1;

  --rx-admin-radius-xs: 4px;
  --rx-admin-radius-sm: 6px;
  --rx-admin-radius-md: 10px;
  --rx-admin-radius-lg: 16px;
  --rx-admin-radius-xl: 22px;

  --rx-admin-shadow-sm: 0 1px 2px rgba(15, 23, 42, 0.06);
  --rx-admin-shadow-md: 0 8px 24px rgba(15, 23, 42, 0.08);
  --rx-admin-shadow-lg: 0 18px 45px rgba(15, 23, 42, 0.12);

  --rx-admin-transition-fast: 150ms ease;
  --rx-admin-transition-normal: 220ms ease;
  --rx-admin-transition-slow: 350ms ease;

  --rx-admin-container-width: 1280px;
  --rx-admin-sidebar-width: 280px;
  --rx-admin-header-height: 72px;

  --rx-admin-z-dropdown: 50;
  --rx-admin-z-sticky: 100;
  --rx-admin-z-modal: 9999;
}

/* =========================================================
   02. GLOBAL ADMIN RESET FOR RX AREA ONLY
========================================================= */

.rx-admin-wrap,
.rx-admin-wrap * {
  box-sizing: border-box;
}

.rx-admin-wrap {
  max-width: var(--rx-admin-container-width);
  margin: 24px 24px 40px 0;
  font-family: var(--rx-admin-font-family);
  color: var(--rx-admin-text);
}

.rx-admin-wrap a {
  color: var(--rx-admin-primary);
  text-decoration: none;
  transition: color var(--rx-admin-transition-fast);
}

.rx-admin-wrap a:hover,
.rx-admin-wrap a:focus {
  color: var(--rx-admin-primary-hover);
  text-decoration: underline;
}

.rx-admin-wrap img,
.rx-admin-wrap svg {
  max-width: 100%;
  height: auto;
}

.rx-admin-wrap button,
.rx-admin-wrap input,
.rx-admin-wrap select,
.rx-admin-wrap textarea {
  font-family: inherit;
}

.rx-admin-wrap code {
  padding: 2px 6px;
  border-radius: var(--rx-admin-radius-xs);
  background: #f1f5f9;
  color: #0f172a;
  font-size: 12px;
}

.rx-admin-wrap pre {
  overflow: auto;
  padding: 16px;
  border-radius: var(--rx-admin-radius-md);
  background: #0f172a;
  color: #e5e7eb;
  line-height: 1.7;
}

/* =========================================================
   03. PAGE HEADER
========================================================= */

.rx-admin-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 24px;
  padding: 24px;
  border: 1px solid var(--rx-admin-border);
  border-radius: var(--rx-admin-radius-lg);
  background:
    linear-gradient(135deg, rgba(37, 99, 235, 0.08), rgba(14, 165, 233, 0.04)),
    var(--rx-admin-surface);
  box-shadow: var(--rx-admin-shadow-sm);
}

.rx-admin-header-main {
  display: flex;
  align-items: center;
  gap: 16px;
}

.rx-admin-logo {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 54px;
  height: 54px;
  border-radius: 16px;
  background: var(--rx-admin-primary);
  color: #ffffff;
  font-size: 22px;
  font-weight: 800;
  box-shadow: 0 10px 24px rgba(37, 99, 235, 0.28);
}

.rx-admin-title-group {
  min-width: 0;
}

.rx-admin-title {
  margin: 0;
  color: var(--rx-admin-secondary);
  font-size: 26px;
  font-weight: 800;
  line-height: 1.25;
}

.rx-admin-subtitle {
  margin: 6px 0 0;
  color: var(--rx-admin-text-muted);
  font-size: 14px;
  line-height: 1.6;
}

.rx-admin-header-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: flex-end;
  gap: 10px;
}

/* =========================================================
   04. MAIN LAYOUT
========================================================= */

.rx-admin-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) var(--rx-admin-sidebar-width);
  gap: 24px;
  align-items: start;
}

.rx-admin-main {
  min-width: 0;
}

.rx-admin-sidebar {
  position: sticky;
  top: 48px;
  min-width: 0;
}

.rx-admin-section {
  margin-bottom: 24px;
}

.rx-admin-section-title {
  margin: 0 0 14px;
  color: var(--rx-admin-secondary);
  font-size: 20px;
  font-weight: 750;
}

.rx-admin-section-description {
  margin: -6px 0 18px;
  color: var(--rx-admin-text-muted);
  font-size: 14px;
  line-height: 1.7;
}

/* =========================================================
   05. CARDS
========================================================= */

.rx-card {
  position: relative;
  margin-bottom: 20px;
  border: 1px solid var(--rx-admin-border);
  border-radius: var(--rx-admin-radius-lg);
  background: var(--rx-admin-surface);
  box-shadow: var(--rx-admin-shadow-sm);
  overflow: hidden;
}

.rx-card:hover {
  box-shadow: var(--rx-admin-shadow-md);
}

.rx-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 18px 22px;
  border-bottom: 1px solid var(--rx-admin-border);
  background: var(--rx-admin-surface-soft);
}

.rx-card-title {
  margin: 0;
  color: var(--rx-admin-secondary);
  font-size: 16px;
  font-weight: 750;
  line-height: 1.4;
}

.rx-card-subtitle {
  margin: 4px 0 0;
  color: var(--rx-admin-text-muted);
  font-size: 13px;
  line-height: 1.5;
}

.rx-card-body {
  padding: 22px;
}

.rx-card-footer {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 12px;
  padding: 16px 22px;
  border-top: 1px solid var(--rx-admin-border);
  background: #fbfdff;
}

.rx-card-compact .rx-card-header,
.rx-card-compact .rx-card-body,
.rx-card-compact .rx-card-footer {
  padding-left: 16px;
  padding-right: 16px;
}

.rx-card-highlight {
  border-color: rgba(37, 99, 235, 0.25);
  background:
    linear-gradient(180deg, rgba(37, 99, 235, 0.04), rgba(255, 255, 255, 0)),
    var(--rx-admin-surface);
}

.rx-card-success {
  border-color: rgba(22, 163, 74, 0.25);
}

.rx-card-warning {
  border-color: rgba(245, 158, 11, 0.35);
}

.rx-card-danger {
  border-color: rgba(220, 38, 38, 0.25);
}

/* =========================================================
   06. GRID HELPERS
========================================================= */

.rx-grid {
  display: grid;
  gap: 20px;
}

.rx-grid-2 {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.rx-grid-3 {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.rx-grid-4 {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.rx-flex {
  display: flex;
  gap: 16px;
}

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

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

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

/* =========================================================
   07. BUTTONS
========================================================= */

.rx-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 38px;
  padding: 8px 16px;
  border: 1px solid transparent;
  border-radius: var(--rx-admin-radius-sm);
  background: var(--rx-admin-surface);
  color: var(--rx-admin-text);
  font-size: 13px;
  font-weight: 650;
  line-height: 1.4;
  cursor: pointer;
  text-decoration: none;
  box-shadow: var(--rx-admin-shadow-sm);
  transition:
    background var(--rx-admin-transition-fast),
    border-color var(--rx-admin-transition-fast),
    color var(--rx-admin-transition-fast),
    box-shadow var(--rx-admin-transition-fast),
    transform var(--rx-admin-transition-fast);
}

.rx-btn:hover {
  transform: translateY(-1px);
  text-decoration: none;
  box-shadow: var(--rx-admin-shadow-md);
}

.rx-btn:active {
  transform: translateY(0);
}

.rx-btn:focus {
  outline: 2px solid rgba(37, 99, 235, 0.35);
  outline-offset: 2px;
}

.rx-btn-primary {
  background: var(--rx-admin-primary);
  border-color: var(--rx-admin-primary);
  color: #ffffff;
}

.rx-btn-primary:hover {
  background: var(--rx-admin-primary-hover);
  border-color: var(--rx-admin-primary-hover);
  color: #ffffff;
}

.rx-btn-secondary {
  background: #0f172a;
  border-color: #0f172a;
  color: #ffffff;
}

.rx-btn-secondary:hover {
  background: #1e293b;
  border-color: #1e293b;
  color: #ffffff;
}

.rx-btn-outline {
  background: #ffffff;
  border-color: var(--rx-admin-border-strong);
  color: var(--rx-admin-secondary);
}

.rx-btn-outline:hover {
  background: #f8fafc;
  border-color: var(--rx-admin-primary);
  color: var(--rx-admin-primary);
}

.rx-btn-success {
  background: var(--rx-admin-success);
  border-color: var(--rx-admin-success);
  color: #ffffff;
}

.rx-btn-warning {
  background: var(--rx-admin-warning);
  border-color: var(--rx-admin-warning);
  color: #111827;
}

.rx-btn-danger {
  background: var(--rx-admin-danger);
  border-color: var(--rx-admin-danger);
  color: #ffffff;
}

.rx-btn-small {
  min-height: 30px;
  padding: 5px 10px;
  font-size: 12px;
}

.rx-btn-large {
  min-height: 46px;
  padding: 11px 22px;
  font-size: 14px;
}

.rx-btn-block {
  width: 100%;
}

.rx-btn[disabled],
.rx-btn.is-disabled {
  opacity: 0.55;
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}

/* =========================================================
   08. FORMS
========================================================= */

.rx-form {
  width: 100%;
}

.rx-field {
  margin-bottom: 20px;
}

.rx-field:last-child {
  margin-bottom: 0;
}

.rx-label {
  display: block;
  margin-bottom: 7px;
  color: var(--rx-admin-secondary);
  font-size: 13px;
  font-weight: 700;
}

.rx-description,
.rx-help-text {
  margin: 7px 0 0;
  color: var(--rx-admin-text-muted);
  font-size: 12.5px;
  line-height: 1.6;
}

.rx-input,
.rx-select,
.rx-textarea,
.rx-admin-wrap input[type="text"].rx-input,
.rx-admin-wrap input[type="url"].rx-input,
.rx-admin-wrap input[type="email"].rx-input,
.rx-admin-wrap input[type="number"].rx-input,
.rx-admin-wrap input[type="password"].rx-input,
.rx-admin-wrap select.rx-select,
.rx-admin-wrap textarea.rx-textarea {
  width: 100%;
  max-width: 100%;
  min-height: 40px;
  padding: 8px 12px;
  border: 1px solid var(--rx-admin-border-strong);
  border-radius: var(--rx-admin-radius-sm);
  background: #ffffff;
  color: var(--rx-admin-text);
  font-size: 14px;
  line-height: 1.5;
  box-shadow: none;
  transition:
    border-color var(--rx-admin-transition-fast),
    box-shadow var(--rx-admin-transition-fast),
    background var(--rx-admin-transition-fast);
}

.rx-textarea,
.rx-admin-wrap textarea.rx-textarea {
  min-height: 120px;
  resize: vertical;
}

.rx-input:focus,
.rx-select:focus,
.rx-textarea:focus {
  border-color: var(--rx-admin-primary);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.14);
  outline: none;
}

.rx-input[readonly],
.rx-input[disabled],
.rx-select[disabled],
.rx-textarea[disabled] {
  background: #f1f5f9;
  color: var(--rx-admin-text-muted);
  cursor: not-allowed;
}

.rx-field-inline {
  display: flex;
  align-items: center;
  gap: 12px;
}

.rx-field-inline .rx-label {
  margin-bottom: 0;
}

.rx-field-group {
  display: grid;
  gap: 16px;
}

.rx-field-group-2 {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.rx-field-group-3 {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

/* =========================================================
   09. CHECKBOX, RADIO, SWITCH
========================================================= */

.rx-check,
.rx-radio {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin-bottom: 10px;
  color: var(--rx-admin-text);
  font-size: 14px;
  line-height: 1.5;
}

.rx-check input,
.rx-radio input {
  margin-top: 2px;
}

.rx-switch {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  cursor: pointer;
}

.rx-switch input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.rx-switch-slider {
  position: relative;
  width: 46px;
  height: 24px;
  border-radius: 999px;
  background: #cbd5e1;
  transition: background var(--rx-admin-transition-normal);
}

.rx-switch-slider::before {
  content: "";
  position: absolute;
  top: 3px;
  left: 3px;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: #ffffff;
  box-shadow: 0 1px 3px rgba(15, 23, 42, 0.25);
  transition: transform var(--rx-admin-transition-normal);
}

.rx-switch input:checked + .rx-switch-slider {
  background: var(--rx-admin-primary);
}

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

.rx-switch-text {
  color: var(--rx-admin-secondary);
  font-size: 13px;
  font-weight: 650;
}

/* =========================================================
   10. TABS
========================================================= */

.rx-tabs {
  margin-bottom: 24px;
}

.rx-tab-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0 0 18px;
  padding: 6px;
  border: 1px solid var(--rx-admin-border);
  border-radius: var(--rx-admin-radius-lg);
  background: var(--rx-admin-surface);
  box-shadow: var(--rx-admin-shadow-sm);
}

.rx-tab-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 38px;
  padding: 8px 14px;
  border-radius: var(--rx-admin-radius-md);
  color: var(--rx-admin-text-muted);
  font-size: 13px;
  font-weight: 700;
  text-decoration: none;
  transition:
    background var(--rx-admin-transition-fast),
    color var(--rx-admin-transition-fast);
}

.rx-tab-link:hover {
  background: var(--rx-admin-primary-soft);
  color: var(--rx-admin-primary);
  text-decoration: none;
}

.rx-tab-link.is-active,
.rx-tab-link.active {
  background: var(--rx-admin-primary);
  color: #ffffff;
}

.rx-tab-panel {
  display: none;
}

.rx-tab-panel.is-active,
.rx-tab-panel.active {
  display: block;
}

/* =========================================================
   11. ADMIN TABLE
========================================================= */

.rx-table-wrap {
  overflow-x: auto;
  border: 1px solid var(--rx-admin-border);
  border-radius: var(--rx-admin-radius-lg);
  background: #ffffff;
  box-shadow: var(--rx-admin-shadow-sm);
}

.rx-table {
  width: 100%;
  border-collapse: collapse;
  background: #ffffff;
}

.rx-table th,
.rx-table td {
  padding: 13px 16px;
  border-bottom: 1px solid var(--rx-admin-border);
  text-align: left;
  vertical-align: middle;
  font-size: 13px;
  line-height: 1.55;
}

.rx-table th {
  background: #f8fafc;
  color: var(--rx-admin-secondary);
  font-weight: 800;
}

.rx-table td {
  color: var(--rx-admin-text);
}

.rx-table tr:last-child td {
  border-bottom: 0;
}

.rx-table tbody tr:hover {
  background: #f8fafc;
}

.rx-table-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

/* =========================================================
   12. NOTICE / ALERT BOX
========================================================= */

.rx-notice {
  position: relative;
  margin: 0 0 18px;
  padding: 14px 16px 14px 48px;
  border: 1px solid var(--rx-admin-border);
  border-left-width: 4px;
  border-radius: var(--rx-admin-radius-md);
  background: #ffffff;
  color: var(--rx-admin-text);
  box-shadow: var(--rx-admin-shadow-sm);
}

.rx-notice::before {
  content: "i";
  position: absolute;
  top: 14px;
  left: 16px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--rx-admin-info);
  color: #ffffff;
  font-size: 13px;
  font-weight: 800;
}

.rx-notice p {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.65;
}

.rx-notice-info {
  border-left-color: var(--rx-admin-info);
}

.rx-notice-success {
  border-left-color: var(--rx-admin-success);
}

.rx-notice-success::before {
  content: "✓";
  background: var(--rx-admin-success);
}

.rx-notice-warning {
  border-left-color: var(--rx-admin-warning);
}

.rx-notice-warning::before {
  content: "!";
  background: var(--rx-admin-warning);
  color: #111827;
}

.rx-notice-danger,
.rx-notice-error {
  border-left-color: var(--rx-admin-danger);
}

.rx-notice-danger::before,
.rx-notice-error::before {
  content: "!";
  background: var(--rx-admin-danger);
}

/* =========================================================
   13. BADGES AND STATUS
========================================================= */

.rx-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  min-height: 24px;
  padding: 3px 9px;
  border-radius: 999px;
  background: #f1f5f9;
  color: #334155;
  font-size: 11.5px;
  font-weight: 800;
  line-height: 1.3;
  white-space: nowrap;
}

.rx-badge-primary {
  background: var(--rx-admin-primary-soft);
  color: var(--rx-admin-primary);
}

.rx-badge-success {
  background: #dcfce7;
  color: #166534;
}

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

.rx-badge-danger {
  background: #fee2e2;
  color: #991b1b;
}

.rx-badge-info {
  background: #e0f2fe;
  color: #075985;
}

.rx-status-dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 999px;
  background: var(--rx-admin-text-light);
}

.rx-status-active {
  background: var(--rx-admin-success);
}

.rx-status-warning {
  background: var(--rx-admin-warning);
}

.rx-status-danger {
  background: var(--rx-admin-danger);
}

/* =========================================================
   14. METRIC / DASHBOARD BOXES
========================================================= */

.rx-metric {
  padding: 20px;
  border: 1px solid var(--rx-admin-border);
  border-radius: var(--rx-admin-radius-lg);
  background: #ffffff;
  box-shadow: var(--rx-admin-shadow-sm);
}

.rx-metric-label {
  margin: 0 0 8px;
  color: var(--rx-admin-text-muted);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.rx-metric-value {
  margin: 0;
  color: var(--rx-admin-secondary);
  font-size: 30px;
  font-weight: 850;
  line-height: 1.1;
}

.rx-metric-description {
  margin: 10px 0 0;
  color: var(--rx-admin-text-muted);
  font-size: 13px;
  line-height: 1.55;
}

/* =========================================================
   15. PROGRESS BAR
========================================================= */

.rx-progress {
  overflow: hidden;
  width: 100%;
  height: 10px;
  border-radius: 999px;
  background: #e5e7eb;
}

.rx-progress-bar {
  width: 0;
  height: 100%;
  border-radius: inherit;
  background: var(--rx-admin-primary);
  transition: width var(--rx-admin-transition-slow);
}

.rx-progress-success .rx-progress-bar {
  background: var(--rx-admin-success);
}

.rx-progress-warning .rx-progress-bar {
  background: var(--rx-admin-warning);
}

.rx-progress-danger .rx-progress-bar {
  background: var(--rx-admin-danger);
}

/* =========================================================
   16. ACCORDION
========================================================= */

.rx-accordion {
  border: 1px solid var(--rx-admin-border);
  border-radius: var(--rx-admin-radius-lg);
  background: #ffffff;
  overflow: hidden;
}

.rx-accordion-item + .rx-accordion-item {
  border-top: 1px solid var(--rx-admin-border);
}

.rx-accordion-trigger {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  min-height: 48px;
  padding: 14px 18px;
  border: 0;
  background: #ffffff;
  color: var(--rx-admin-secondary);
  font-size: 14px;
  font-weight: 750;
  text-align: left;
  cursor: pointer;
}

.rx-accordion-trigger:hover {
  background: #f8fafc;
}

.rx-accordion-icon {
  transition: transform var(--rx-admin-transition-fast);
}

.rx-accordion-item.is-open .rx-accordion-icon {
  transform: rotate(180deg);
}

.rx-accordion-content {
  display: none;
  padding: 0 18px 18px;
  color: var(--rx-admin-text-muted);
  font-size: 13.5px;
  line-height: 1.7;
}

.rx-accordion-item.is-open .rx-accordion-content {
  display: block;
}

/* =========================================================
   17. MODAL FOUNDATION
========================================================= */

.rx-modal {
  position: fixed;
  inset: 0;
  z-index: var(--rx-admin-z-modal);
  display: none;
  align-items: center;
  justify-content: center;
  padding: 24px;
  background: rgba(15, 23, 42, 0.55);
}

.rx-modal.is-open {
  display: flex;
}

.rx-modal-dialog {
  width: min(720px, 100%);
  max-height: calc(100vh - 48px);
  overflow: auto;
  border-radius: var(--rx-admin-radius-lg);
  background: #ffffff;
  box-shadow: var(--rx-admin-shadow-lg);
}

.rx-modal-header,
.rx-modal-body,
.rx-modal-footer {
  padding: 20px 24px;
}

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

.rx-modal-title {
  margin: 0;
  color: var(--rx-admin-secondary);
  font-size: 18px;
  font-weight: 800;
}

.rx-modal-close {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border: 0;
  border-radius: var(--rx-admin-radius-sm);
  background: #f1f5f9;
  color: var(--rx-admin-secondary);
  cursor: pointer;
}

.rx-modal-footer {
  display: flex;
  justify-content: flex-end;
  gap: 10px;
  border-top: 1px solid var(--rx-admin-border);
}

/* =========================================================
   18. TOOLTIP
========================================================= */

.rx-tooltip {
  position: relative;
  display: inline-flex;
  align-items: center;
  cursor: help;
}

.rx-tooltip::after {
  content: attr(data-tooltip);
  position: absolute;
  bottom: calc(100% + 8px);
  left: 50%;
  z-index: var(--rx-admin-z-dropdown);
  width: max-content;
  max-width: 260px;
  padding: 8px 10px;
  border-radius: var(--rx-admin-radius-sm);
  background: #0f172a;
  color: #ffffff;
  font-size: 12px;
  line-height: 1.45;
  opacity: 0;
  pointer-events: none;
  transform: translateX(-50%) translateY(4px);
  transition:
    opacity var(--rx-admin-transition-fast),
    transform var(--rx-admin-transition-fast);
}

.rx-tooltip:hover::after,
.rx-tooltip:focus::after {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

/* =========================================================
   19. EMPTY STATE
========================================================= */

.rx-empty {
  padding: 42px 24px;
  border: 1px dashed var(--rx-admin-border-strong);
  border-radius: var(--rx-admin-radius-lg);
  background: #ffffff;
  text-align: center;
}

.rx-empty-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 58px;
  height: 58px;
  margin-bottom: 14px;
  border-radius: 18px;
  background: var(--rx-admin-primary-soft);
  color: var(--rx-admin-primary);
  font-size: 24px;
}

.rx-empty-title {
  margin: 0 0 8px;
  color: var(--rx-admin-secondary);
  font-size: 18px;
  font-weight: 800;
}

.rx-empty-text {
  max-width: 560px;
  margin: 0 auto 18px;
  color: var(--rx-admin-text-muted);
  font-size: 14px;
  line-height: 1.7;
}

/* =========================================================
   20. LOADER / SPINNER
========================================================= */

.rx-spinner {
  display: inline-block;
  width: 22px;
  height: 22px;
  border: 3px solid #dbeafe;
  border-top-color: var(--rx-admin-primary);
  border-radius: 50%;
  animation: rx-admin-spin 700ms linear infinite;
}

.rx-loading-overlay {
  position: absolute;
  inset: 0;
  z-index: 20;
  display: none;
  align-items: center;
  justify-content: center;
  background: rgba(255, 255, 255, 0.72);
  backdrop-filter: blur(2px);
}

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

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

/* =========================================================
   21. WORDPRESS ADMIN COMPATIBILITY
========================================================= */

.rx-admin-wrap .button.rx-button-clean {
  min-height: 38px;
  border-radius: var(--rx-admin-radius-sm);
  font-weight: 650;
}

.rx-admin-wrap .notice {
  border-radius: var(--rx-admin-radius-sm);
}

.rx-admin-wrap .form-table th {
  color: var(--rx-admin-secondary);
  font-weight: 750;
}

.rx-admin-wrap .form-table td {
  color: var(--rx-admin-text);
}

.rx-admin-wrap .wp-picker-container .wp-color-result.button {
  min-height: 32px;
  border-radius: var(--rx-admin-radius-sm);
}

.rx-admin-wrap .select2-container {
  max-width: 100%;
}

.rx-admin-wrap .select2-container .select2-selection--single {
  min-height: 40px;
  border-color: var(--rx-admin-border-strong);
  border-radius: var(--rx-admin-radius-sm);
}

.rx-admin-wrap .select2-container--default .select2-selection--single .select2-selection__rendered {
  line-height: 38px;
}

.rx-admin-wrap .select2-container--default .select2-selection--single .select2-selection__arrow {
  height: 38px;
}

/* =========================================================
   22. MEDIA UPLOADER PREVIEW
========================================================= */

.rx-media-preview {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 14px;
  border: 1px solid var(--rx-admin-border);
  border-radius: var(--rx-admin-radius-md);
  background: #f8fafc;
}

.rx-media-thumbnail {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 86px;
  height: 86px;
  overflow: hidden;
  border: 1px solid var(--rx-admin-border);
  border-radius: var(--rx-admin-radius-md);
  background: #ffffff;
}

.rx-media-thumbnail img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.rx-media-info {
  min-width: 0;
  flex: 1;
}

.rx-media-title {
  margin: 0 0 5px;
  color: var(--rx-admin-secondary);
  font-size: 14px;
  font-weight: 750;
}

.rx-media-url {
  overflow: hidden;
  margin: 0;
  color: var(--rx-admin-text-muted);
  font-size: 12px;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* =========================================================
   23. CODE EDITOR STYLE
========================================================= */

.rx-code-editor {
  width: 100%;
  min-height: 260px;
  padding: 16px;
  border: 1px solid #1e293b;
  border-radius: var(--rx-admin-radius-md);
  background: #0f172a;
  color: #e5e7eb;
  font-family: Consolas, Monaco, "Courier New", monospace;
  font-size: 13px;
  line-height: 1.7;
  resize: vertical;
}

.rx-code-editor:focus {
  border-color: var(--rx-admin-primary);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.18);
  outline: none;
}

/* =========================================================
   24. FILE / ASSET LIST
========================================================= */

.rx-asset-list {
  display: grid;
  gap: 12px;
}

.rx-asset-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 14px 16px;
  border: 1px solid var(--rx-admin-border);
  border-radius: var(--rx-admin-radius-md);
  background: #ffffff;
}

.rx-asset-item:hover {
  border-color: rgba(37, 99, 235, 0.35);
  background: #f8fafc;
}

.rx-asset-main {
  min-width: 0;
}

.rx-asset-name {
  margin: 0 0 4px;
  color: var(--rx-admin-secondary);
  font-size: 13.5px;
  font-weight: 750;
}

.rx-asset-path {
  overflow: hidden;
  margin: 0;
  color: var(--rx-admin-text-muted);
  font-size: 12px;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.rx-asset-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

/* =========================================================
   25. ADMIN SIDEBAR WIDGET
========================================================= */

.rx-sidebar-widget {
  margin-bottom: 18px;
  padding: 18px;
  border: 1px solid var(--rx-admin-border);
  border-radius: var(--rx-admin-radius-lg);
  background: #ffffff;
  box-shadow: var(--rx-admin-shadow-sm);
}

.rx-sidebar-widget-title {
  margin: 0 0 10px;
  color: var(--rx-admin-secondary);
  font-size: 15px;
  font-weight: 800;
}

.rx-sidebar-widget-text {
  margin: 0 0 14px;
  color: var(--rx-admin-text-muted);
  font-size: 13px;
  line-height: 1.65;
}

.rx-sidebar-list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.rx-sidebar-list li {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  padding: 9px 0;
  border-bottom: 1px solid var(--rx-admin-border);
  color: var(--rx-admin-text);
  font-size: 13px;
}

.rx-sidebar-list li:last-child {
  border-bottom: 0;
}

/* =========================================================
   26. TOAST MESSAGE
========================================================= */

.rx-toast-wrap {
  position: fixed;
  right: 24px;
  bottom: 24px;
  z-index: var(--rx-admin-z-modal);
  display: grid;
  gap: 10px;
  width: min(360px, calc(100vw - 48px));
}

.rx-toast {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 14px 16px;
  border: 1px solid var(--rx-admin-border);
  border-left: 4px solid var(--rx-admin-primary);
  border-radius: var(--rx-admin-radius-md);
  background: #ffffff;
  box-shadow: var(--rx-admin-shadow-lg);
}

.rx-toast-title {
  margin: 0 0 3px;
  color: var(--rx-admin-secondary);
  font-size: 13.5px;
  font-weight: 800;
}

.rx-toast-message {
  margin: 0;
  color: var(--rx-admin-text-muted);
  font-size: 12.5px;
  line-height: 1.55;
}

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

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

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

/* =========================================================
   27. UTILITY CLASSES
========================================================= */

.rx-hidden {
  display: none !important;
}

.rx-visible {
  display: block !important;
}

.rx-sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
}

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

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

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

.rx-text-muted {
  color: var(--rx-admin-text-muted);
}

.rx-text-primary {
  color: var(--rx-admin-primary);
}

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

.rx-text-warning {
  color: var(--rx-admin-warning);
}

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

.rx-bg-soft {
  background: var(--rx-admin-surface-soft);
}

.rx-bg-primary-soft {
  background: var(--rx-admin-primary-soft);
}

.rx-m-0 {
  margin: 0 !important;
}

.rx-mt-0 {
  margin-top: 0 !important;
}

.rx-mt-1 {
  margin-top: 8px !important;
}

.rx-mt-2 {
  margin-top: 16px !important;
}

.rx-mt-3 {
  margin-top: 24px !important;
}

.rx-mb-0 {
  margin-bottom: 0 !important;
}

.rx-mb-1 {
  margin-bottom: 8px !important;
}

.rx-mb-2 {
  margin-bottom: 16px !important;
}

.rx-mb-3 {
  margin-bottom: 24px !important;
}

.rx-p-0 {
  padding: 0 !important;
}

.rx-p-1 {
  padding: 8px !important;
}

.rx-p-2 {
  padding: 16px !important;
}

.rx-p-3 {
  padding: 24px !important;
}

.rx-w-100 {
  width: 100% !important;
}

.rx-max-w-640 {
  max-width: 640px;
}

.rx-max-w-800 {
  max-width: 800px;
}

.rx-rounded {
  border-radius: var(--rx-admin-radius-md);
}

.rx-shadow {
  box-shadow: var(--rx-admin-shadow-md);
}

/* =========================================================
   28. RTL SUPPORT
========================================================= */

.rtl .rx-admin-wrap {
  margin-right: 0;
  margin-left: 24px;
}

.rtl .rx-notice {
  padding-right: 48px;
  padding-left: 16px;
  border-right-width: 4px;
  border-left-width: 1px;
}

.rtl .rx-notice::before {
  right: 16px;
  left: auto;
}

.rtl .rx-toast {
  border-right: 4px solid var(--rx-admin-primary);
  border-left: 1px solid var(--rx-admin-border);
}

/* =========================================================
   29. DARK MODE READY
   Add .rx-admin-dark to body or admin wrapper if needed.
========================================================= */

.rx-admin-dark,
.rx-admin-dark .rx-admin-wrap {
  --rx-admin-bg: #020617;
  --rx-admin-surface: #0f172a;
  --rx-admin-surface-soft: #111827;
  --rx-admin-text: #e5e7eb;
  --rx-admin-text-muted: #94a3b8;
  --rx-admin-text-light: #64748b;
  --rx-admin-border: #1e293b;
  --rx-admin-border-strong: #334155;
  --rx-admin-secondary: #f8fafc;
  --rx-admin-primary-soft: rgba(37, 99, 235, 0.18);
}

.rx-admin-dark .rx-card,
.rx-admin-dark .rx-table-wrap,
.rx-admin-dark .rx-table,
.rx-admin-dark .rx-sidebar-widget,
.rx-admin-dark .rx-admin-header,
.rx-admin-dark .rx-tab-nav,
.rx-admin-dark .rx-modal-dialog,
.rx-admin-dark .rx-toast,
.rx-admin-dark .rx-empty,
.rx-admin-dark .rx-asset-item,
.rx-admin-dark .rx-metric {
  background: var(--rx-admin-surface);
}

.rx-admin-dark .rx-card-header,
.rx-admin-dark .rx-card-footer,
.rx-admin-dark .rx-table th,
.rx-admin-dark .rx-accordion-trigger,
.rx-admin-dark .rx-admin-wrap code {
  background: var(--rx-admin-surface-soft);
}

.rx-admin-dark .rx-input,
.rx-admin-dark .rx-select,
.rx-admin-dark .rx-textarea {
  background: #020617;
  color: var(--rx-admin-text);
  border-color: var(--rx-admin-border-strong);
}

.rx-admin-dark .rx-table tbody tr:hover,
.rx-admin-dark .rx-asset-item:hover,
.rx-admin-dark .rx-accordion-trigger:hover {
  background: #111827;
}

/* =========================================================
   30. RESPONSIVE
========================================================= */

@media (max-width: 1200px) {
  .rx-admin-layout {
    grid-template-columns: minmax(0, 1fr) 240px;
  }

  .rx-grid-4 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 960px) {
  .rx-admin-layout {
    grid-template-columns: 1fr;
  }

  .rx-admin-sidebar {
    position: static;
  }

  .rx-grid-3,
  .rx-grid-4 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .rx-admin-header {
    align-items: flex-start;
    flex-direction: column;
  }

  .rx-admin-header-actions {
    justify-content: flex-start;
  }
}

@media (max-width: 782px) {
  .rx-admin-wrap {
    margin: 16px 12px 32px 0;
  }

  .rx-admin-title {
    font-size: 22px;
  }

  .rx-admin-header,
  .rx-card-body,
  .rx-card-header,
  .rx-card-footer {
    padding: 16px;
  }

  .rx-grid-2,
  .rx-grid-3,
  .rx-grid-4,
  .rx-field-group-2,
  .rx-field-group-3 {
    grid-template-columns: 1fr;
  }

  .rx-field-inline {
    align-items: stretch;
    flex-direction: column;
  }

  .rx-media-preview,
  .rx-asset-item {
    align-items: flex-start;
    flex-direction: column;
  }

  .rx-asset-actions {
    width: 100%;
  }

  .rx-asset-actions .rx-btn {
    flex: 1;
  }
}

@media (max-width: 480px) {
  .rx-admin-header-main {
    align-items: flex-start;
    flex-direction: column;
  }

  .rx-tab-nav {
    display: grid;
    grid-template-columns: 1fr;
  }

  .rx-card-footer,
  .rx-modal-footer {
    align-items: stretch;
    flex-direction: column;
  }

  .rx-card-footer .rx-btn,
  .rx-modal-footer .rx-btn {
    width: 100%;
  }

  .rx-toast-wrap {
    right: 12px;
    bottom: 12px;
    width: calc(100vw - 24px);
  }
}

/* =========================================================
   31. PRINT CLEANUP
========================================================= */

@media print {
  .rx-admin-header-actions,
  .rx-card-footer,
  .rx-btn,
  .rx-tab-nav,
  .rx-sidebar,
  .rx-toast-wrap {
    display: none !important;
  }

  .rx-admin-wrap {
    margin: 0;
    max-width: none;
  }

  .rx-card,
  .rx-admin-header,
  .rx-table-wrap {
    box-shadow: none;
    border-color: #cccccc;
  }
}

For WordPress admin loading, enqueue it like this inside your admin enqueue file, for example:

function rx_theme_admin_assets( $hook ) {
    wp_enqueue_style(
        'rx-admin',
        get_template_directory_uri() . '/assets/static/static-css/rx-admin.css',
        array(),
        wp_get_theme()->get( 'Version' ),
        'all'
    );
}
add_action( 'admin_enqueue_scripts', 'rx_theme_admin_assets' );

Best naming is:

Handle: rx-admin
File: rx-admin.css
Purpose: RX Theme admin dashboard/settings UI

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