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

    /* CSS Variables - CHESNEY Signage Theme */
    :root {
      --primary-50: #f5f3ff;
      --primary-100: #ede9fe;
      --primary-200: #ddd6fe;
      --primary-300: #c4b5fd;
      --primary-400: #a78bfa;
      --primary-500: #8b5cf6;
      --primary-600: #7c3aed;
      --primary-700: #6d28d9;
      --primary-800: #5b21b6;
      --primary-900: #4c1d95;
      --gray-50: #f9fafb;
      --gray-100: #f3f4f6;
      --gray-200: #e5e7eb;
      --gray-300: #d1d5db;
      --gray-400: #9ca3af;
      --gray-500: #6b7280;
      --gray-600: #4b5563;
      --gray-700: #374151;
      --gray-800: #1f2937;
      --gray-900: #111827;
      --success: #10b981;
      --success-50: #ecfdf5;
      --success-100: #d1fae5;
      --warning: #f59e0b;
      --warning-50: #fffbeb;
      --warning-100: #fef3c7;
      --error: #ef4444;
      --error-50: #fef2f2;
      --error-100: #fee2e2;
      --info: #3b82f6;
      --info-50: #eff6ff;
      --info-100: #dbeafe;
      --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
      --font-display: 'Space Grotesk', var(--font-sans);
      --text-xs: 0.75rem;
      --text-sm: 0.875rem;
      --text-base: 1rem;
      --text-lg: 1.125rem;
      --text-xl: 1.25rem;
      --text-2xl: 1.5rem;
      --text-3xl: 1.875rem;
      --text-4xl: 2.25rem;
      --text-5xl: 3rem;
      --space-1: 0.25rem;
      --space-2: 0.5rem;
      --space-3: 0.75rem;
      --space-4: 1rem;
      --space-5: 1.25rem;
      --space-6: 1.5rem;
      --space-8: 2rem;
      --space-10: 2.5rem;
      --space-12: 3rem;
      --space-16: 4rem;
      --space-20: 5rem;
      --space-24: 6rem;
      --radius-sm: 0.25rem;
      --radius-md: 0.375rem;
      --radius-lg: 0.5rem;
      --radius-xl: 0.75rem;
      --radius-2xl: 1rem;
      --radius-3xl: 1.5rem;
      --radius-full: 9999px;
      --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);
      --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
      --shadow-2xl: 0 25px 50px -12px rgb(0 0 0 / 0.25);
      --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
      --transition-base: 250ms cubic-bezier(0.4, 0, 0.2, 1);
      --transition-slow: 350ms cubic-bezier(0.4, 0, 0.2, 1);
      --z-dropdown: 1000;
      --z-sticky: 1020;
      --z-fixed: 1030;
      --z-backdrop: 1040;
      --z-modal: 1050;
      --z-popover: 1060;
      --z-tooltip: 1070;
    }

    /* Base Styles */
    html {
      font-size: 16px;
      scroll-behavior: smooth;
      -webkit-font-smoothing: antialiased;
      -moz-osx-font-smoothing: grayscale;
    }

    body {
      font-family: var(--font-sans);
      font-size: var(--text-base);
      line-height: 1.6;
      color: var(--gray-900);
      background: var(--gray-50);
      min-height: 100vh;
      overflow-x: hidden;
    }

    /* Focus Styles */
    :focus {
      outline: 2px solid var(--primary-500);
      outline-offset: 2px;
    }

    :focus:not(:focus-visible) {
      outline: none;
    }

    /* Skip to Content */
    .skip-to-content {
      position: absolute;
      top: -100px;
      left: var(--space-4);
      background: var(--primary-600);
      color: white;
      padding: var(--space-2) var(--space-4);
      border-radius: var(--radius-md);
      text-decoration: none;
      z-index: var(--z-tooltip);
      font-weight: 600;
    }

    .skip-to-content:focus {
      top: var(--space-4);
    }
/* Header */
.header {
      background: white;
      border-bottom: 1px solid var(--gray-200);
      padding: var(--space-4) 0;
      position: sticky;
      top: 0;
      z-index: var(--z-sticky);
      backdrop-filter: blur(8px);
    }

    .header-content {
      max-width: 1280px;
      margin: 0 auto;
      padding: 0 var(--space-6);
      display: flex;
      align-items: center;
      justify-content: space-between;
    }

    .logo {
      display: flex;
      align-items: center;
      gap: var(--space-3);
      text-decoration: none;
    }

    .logo-icon {
      width: 40px;
      height: 40px;
      /* background: linear-gradient(135deg, var(--primary-600), var(--primary-700)); */
      border-radius: var(--radius-lg);
      display: flex;
      align-items: center;
      justify-content: center;
      color: white;
      font-weight: 700;
      font-size: var(--text-lg);
    }
    .logo-icon img {
            height: 50px;
            width: 50px;
            object-fit: contain;
        }
    .logo-text {
      font-family: var(--font-display);
      font-size: var(--text-xl);
      font-weight: 700;
      color: var(--gray-900);
      letter-spacing: -0.02em;
    }

    .breadcrumb {
      display: flex;
      align-items: center;
      gap: var(--space-2);
      color: var(--gray-500);
      font-size: var(--text-sm);
    }

    .breadcrumb a {
      color: var(--primary-600);
      text-decoration: none;
      font-weight: 500;
    }

    .breadcrumb a:hover {
      color: var(--primary-700);
    }

    .close-btn {
      background: var(--gray-100);
      border: none;
      padding: var(--space-2);
      border-radius: var(--radius-md);
      cursor: pointer;
      color: var(--gray-600);
      transition: all var(--transition-fast);
      display: flex;
      align-items: center;
      gap: var(--space-2);
      font-size: var(--text-sm);
      font-weight: 500;
    }

    .close-btn:hover {
      background: var(--gray-200);
      color: var(--gray-700);
    }

    /* Main Container */
    .main-container {
      width: 100%;
      min-height: calc(100vh - 80px);
      display: grid;
      grid-template-columns: 30% 70%;
      gap: 0;
      align-items: stretch;
    }

    /* Hero Section */
    .hero-section {
      height: 100%;
      min-height: calc(100vh - 80px);
      display: flex;
      align-items: center;
      justify-content: center;
      padding: var(--space-8);
      background: linear-gradient(135deg, var(--primary-600), var(--primary-800));
    }

    .hero-content {
      text-align: center;
      padding: var(--space-8);
      background: linear-gradient(135deg, var(--primary-600), var(--primary-800));
      color: white;
      position: relative;
      overflow: hidden;
    }

    .hero-content::before {
      content: '';
      position: absolute;
      top: -50%;
      right: -50%;
      width: 200%;
      height: 200%;
      background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, transparent 70%);
      animation: rotate 30s linear infinite;
    }

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

    .hero-image img {
      width: 100%;
      max-width: 400px;
      height: auto;
      animation: float 6s ease-in-out infinite;
      position: relative;
    }

    @keyframes float {
      0%, 100% { transform: translateY(0px); }
      50% { transform: translateY(-10px); }
    }

    /* Form Section */
    .form-section {
      background: white;
      height: 100%;
      min-height: calc(100vh - 80px);
      overflow-y: auto;
      border-left: 1px solid var(--gray-200);
    }

    .form-header {
      padding: var(--space-8);
      border-bottom: 1px solid var(--gray-200);
      background: linear-gradient(135deg, var(--gray-50), var(--primary-50));
      position: sticky;
      top: 0;
      z-index: var(--z-sticky);
    }

    .form-title {
      font-family: var(--font-display);
      font-size: var(--text-3xl);
      font-weight: 700;
      color: var(--gray-900);
      margin-bottom: var(--space-2);
    }

    .form-subtitle {
      color: var(--gray-600);
      font-size: var(--text-lg);
      line-height: 1.5;
    }

    .form-content {
      padding: var(--space-8);
    }

    /* Tab Buttons */
    .tab-buttons {
      display: flex;
      gap: var(--space-2);
      margin-bottom: var(--space-4);
      border-bottom: 2px solid var(--gray-200);
    }

    .tab-buttons button {
      padding: var(--space-3) var(--space-6);
      font-size: var(--text-base);
      font-weight: 600;
      color: var(--gray-600);
      background: none;
      border: none;
      border-bottom: 2px solid transparent;
      cursor: pointer;
      transition: all var(--transition-base);
    }

    .tab-buttons button.active-tab {
      color: var(--primary-600);
      border-bottom-color: var(--primary-600);
    }

    .tab-buttons button:hover {
      color: var(--primary-500);
    }

    /* Header Container */
    .header-container {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr;
      gap: var(--space-4);
      padding: var(--space-4);
      background: var(--gray-50);
      border-bottom: 1px solid var(--gray-200);
      font-family: var(--font-display);
      font-size: var(--text-base);
      font-weight: 600;
      color: var(--gray-900);
    }

    /* Grid */
    .grid {
      display: grid;
      gap: var(--space-4);
      padding: var(--space-4);
    }

    .device-grid,
    .groups-grid {
      grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    }

    .grid.hidden {
      display: none;
    }

    .no-data {
      text-align: center;
      color: var(--gray-600);
      font-size: var(--text-base);
      padding: var(--space-8);
    }

    /* Cards */
    .card {
      background: var(--gray-50);
      border: 1px solid var(--gray-200);
      border-radius: var(--radius-xl);
      padding: var(--space-4);
      transition: all var(--transition-base);
      box-shadow: var(--shadow);
    }

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

    .card h4 {
      font-family: var(--font-display);
      font-size: var(--text-lg);
      font-weight: 600;
      color: var(--gray-900);
      margin-bottom: var(--space-2);
    }

    .card p {
      font-size: var(--text-sm);
      color: var(--gray-600);
      margin-bottom: var(--space-4);
    }

    /* Popup */
    .popup {
      position: fixed;
      top: 0;
      left: 0;
      right: 0;
      bottom: 0;
      /* background: rgba(0, 0, 0, 0.7); */
      backdrop-filter: blur(8px);
      display: flex;
      align-items: center;
      justify-content: center;
      z-index: var(--z-modal);
      animation: fadeIn 0.3s ease-out;
    }

    .popup.hidden {
      display: none;
    }

    .popup-content {
      background:  white;
      color: black;
      padding: var(--space-8);
      border-radius: var(--radius-2xl);
      max-width: 650px;
      width: 100%;
      max-height: 90vh;
      overflow-y: auto;
      box-shadow: var(--shadow-2xl);
      animation: scaleIn 0.3s ease-out;
    }

    .close-modal {
      position: absolute;
      top: var(--space-4);
      right: var(--space-4);
      background: none;
      border: none;
      color: var(--gray-400);
      font-size: var(--text-xl);
      cursor: pointer;
      transition: all var(--transition-base);
    }

    .close-modal:hover {
      color: var(--gray-200);
    }

    /* Device Details */
    .device-settings {
      display: grid;
      grid-template-columns: repeat(2, 1fr); /* 2 labels per row */
      gap: var(--space-4);
      margin-bottom: var(--space-4);
    }

    .device-settings div {
      display: flex;
      flex-direction: column;
      gap: var(--space-2);
    }

    .device-settings label {
      font-size: var(--text-base);
      font-weight: 500;
      color: black;
    }

    .device-settings select,
    .device-settings input {
      padding: var(--space-3);
      border: 2px solid var(--primary-400);
      border-radius: var(--radius-lg);
      /* background: var(--gray-800); */
      color: black;
      font-size: var(--text-base);
      transition: all var(--transition-base);
    }

    .device-settings select:focus,
    .device-settings input:focus {
      border-color: var(--primary-500);
      box-shadow: 0 0 0 3px rgba(139, 92, 246, 0.1);
    }

    /* Media Type Selection */
    .media-type-dropdown {
      width: 100%;
      padding: var(--space-3);
      border: 2px solid var(--primary-400);
      border-radius: var(--radius-lg);
      /* background: var(--gray-800); */
      color: black;
      font-size: var(--text-base);
      margin-bottom: var(--space-4);
    }

    .media-type-dropdown:focus {
      border-color: var(--primary-500);
      box-shadow: 0 0 0 3px rgba(139, 92, 246, 0.1);
    }

    .url-input {
      width: 100%;
      padding: var(--space-3);
      border: 2px solid var(--gray-600);
      border-radius: var(--radius-lg);
      background: white;
      color: black;
      font-size: var(--text-base);
      margin-bottom: var(--space-4);
    }

    .url-input:focus {
      border-color: var(--primary-500);
      box-shadow: 0 0 0 3px rgba(139, 92, 246, 0.1);
    }

    .media-list ul {
      
      display: grid;
      grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
      gap: var(--space-3);
      list-style: none;
    }
    .media-list li{
      list-style-type:none ;
      margin-bottom: 10px;
    }
    .media-item {
      position: relative;
    }

    .media-item.selected .select-media-btn::after {
      content: '\f00c';
      font-family: 'Font Awesome 6 Free';
      font-weight: 900;
      position: absolute;
      top: var(--space-2);
      right: var(--space-2);
      color: var(--success);
      background: rgba(0, 0, 0, 0.7);
      border-radius: var(--radius-full);
      width: 24px;
      height: 24px;
      display: flex;
      align-items: center;
      justify-content: center;
    }

    .select-media-btn {
      width: 100%;
      border: none;
      border-radius: var(--radius-lg);
      background: var(--gray-800);
      /* padding: var(--space-2); */
      cursor: pointer;
      transition: all var(--transition-base);
    }

    .select-media-btn:hover {
      border-color: var(--primary-500);
      transform: scale(1.05);
    }

    .thumbnail {
      width: 100%;
      height: 100px;
      object-fit: cover;
      border-radius: var(--radius-md);
    }

    .pdf-thumbnail {
      width: 60px;
      height: 60px;
      margin: 0 auto;
    }

    .grid-create-button {
      margin-top: var(--space-4);
      text-align: center;
    }

    .grid-info {
      font-size: var(--text-sm);
      color: var(--gray-400);
      margin-top: var(--space-2);
    }

    /* Modal Buttons */
    .modal-buttons {
      display: flex;
      gap: var(--space-4);
      margin-top: var(--space-4);
    }

    /* Buttons */
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: var(--space-2);
      padding: var(--space-4) var(--space-6);
      border: none;
      border-radius: var(--radius-xl);
      font-size: var(--text-base);
      font-weight: 600;
      font-family: var(--font-sans);
      cursor: pointer;
      transition: all var(--transition-base);
      text-decoration: none;
      min-height: 48px;
    }

    .btn-primary {
      background: linear-gradient(135deg, var(--primary-600), var(--primary-700));
      color: white;
      box-shadow: 0 4px 14px 0 rgba(139, 92, 246, 0.3);
    }

    .btn-primary:hover {
      transform: translateY(-2px);
      box-shadow: 0 6px 20px 0 rgba(139, 92, 246, 0.4);
    }

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

    .btn-primary:disabled {
      opacity: 0.6;
      cursor: not-allowed;
      transform: none;
    }

    .btn-secondary {
      background: var(--gray-200);
      color: var(--gray-900);
    }

    .btn-secondary:hover {
      background: var(--gray-300);
      transform: translateY(-2px);
    }

    /* Notifications */
    .notification {
      position: fixed;
      top: var(--space-8);
      right: var(--space-8);
      background: white;
      border-radius: var(--radius-xl);
      box-shadow: var(--shadow-xl);
      z-index: var(--z-tooltip);
      max-width: 400px;
      animation: slideInRight 0.3s ease-out;
      border-left: 4px solid var(--primary-500);
      overflow: hidden;
    }

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

    .notification.hidden {
      display: none;
    }

    .notification-content {
      padding: var(--space-4) var(--space-6);
      display: flex;
      align-items: start;
      gap: var(--space-3);
    }

    .notification-icon {
      width: 24px;
      height: 24px;
      flex-shrink: 0;
      margin-top: var(--space-1);
    }

    .notification-icon.success {
      color: var(--success);
    }

    .notification-icon.error {
      color: var(--error);
    }

    .notification-icon.warning {
      color: var(--warning);
    }

    .notification-text {
      flex: 1;
    }

    .notification-title {
      font-weight: 600;
      color: var(--gray-900);
      margin-bottom: var(--space-1);
    }

    .notification-message {
      color: var(--gray-600);
      font-size: var(--text-sm);
      line-height: 1.5;
    }

    .notification-close {
      background: none;
      border: none;
      color: var(--gray-400);
      cursor: pointer;
      padding: var(--space-1);
      border-radius: var(--radius-sm);
      transition: color var(--transition-fast);
    }

    .notification-close:hover {
      color: var(--gray-600);
    }

    /* Confirm Dialog */
   /* Confirm Dialog */
.confirm {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: var(--z-modal);
  animation: fadeIn 0.3s ease-out;
}

.confirm.hidden {
  display: none;
}

.confirm-box {
  background: white;
  padding: var(--space-8);
  border-radius: var(--radius-2xl);
  box-shadow: var(--shadow-2xl);
  max-width: 400px;
  width: 90%;
  text-align: center;
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.confirm-message {
  font-size: var(--text-base);
  color: var(--gray-900);
}

.confirm-actions {
  display: flex;
  gap: var(--space-4);
  justify-content: center;
}


    /* Loading Overlay */
    .loading-overlay {
      position: fixed;
      top: 0;
      left: 0;
      right: 0;
      bottom: 0;
      background: rgba(0, 0, 0, 0.7);
      backdrop-filter: blur(8px);
      display: flex;
      align-items: center;
      justify-content: center;
      z-index: var(--z-modal);
      animation: fadeIn 0.3s ease-out;
    }

    .loading-overlay.hidden {
      display: none;
    }

    .loading-content {
      background: white;
      padding: var(--space-8);
      border-radius: var(--radius-2xl);
      text-align: center;
      box-shadow: var(--shadow-2xl);
      animation: scaleIn 0.3s ease-out;
      max-width: 400px;
      width: 90%;
    }

    @keyframes fadeIn {
      from { opacity: 0; }
      to { opacity: 1; }
    }

    @keyframes scaleIn {
      from {
        opacity: 0;
        transform: scale(0.9);
      }
      to {
        opacity: 1;
        transform: scale(1);
      }
    }

    .spinner {
      width: 60px;
      height: 60px;
      border: 4px solid var(--primary-100);
      border-left-color: var(--primary-600);
      border-radius: var(--radius-full);
      animation: spin 1s linear infinite;
      margin: 0 auto var(--space-4);
    }

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

    .loading-title {
      font-size: var(--text-lg);
      font-weight: 600;
      color: var(--gray-900);
      margin-bottom: var(--space-2);
    }

    /* Scrollbar Styling */
    .form-section::-webkit-scrollbar,
    .popup-content::-webkit-scrollbar {
      width: 6px;
    }

    .form-section::-webkit-scrollbar-track,
    .popup-content::-webkit-scrollbar-track {
      background: var(--gray-100);
    }

    .form-section::-webkit-scrollbar-thumb,
    .popup-content::-webkit-scrollbar-thumb {
      background: var(--primary-300);
      border-radius: var(--radius-full);
    }

    .form-section::-webkit-scrollbar-thumb:hover,
    .popup-content::-webkit-scrollbar-thumb:hover {
      background: var(--primary-500);
    }

    /* Responsive Design */
    @media (max-width: 1024px) {
      .main-container {
        grid-template-columns: 35% 65%;
      }

      .hero-section {
        padding: var(--space-4);
      }

      .hero-content {
        padding: var(--space-6);
      }

      .hero-image img {
        max-width: 300px;
      }

      .form-title {
        font-size: var(--text-2xl);
      }

      .form-subtitle {
        font-size: var(--text-base);
      }
    }

    @media (max-width: 768px) {
      .main-container {
        grid-template-columns: 1fr;
        grid-template-rows: auto 1fr;
      }

      .hero-section {
        position: static;
        min-height: auto;
        padding: var(--space-6);
      }

      .form-section {
        min-height: auto;
        border-left: none;
        border-top: 1px solid var(--gray-200);
      }

      .form-header {
        position: static;
      }

      .header-content {
        padding: 0 var(--space-4);
      }

      .form-content {
        padding: var(--space-6) var(--space-4);
      }

      .nav-links {
        gap: var(--space-4);
        flex-wrap: wrap;
      }
      .device-settings {
    grid-template-columns: 1fr; /* stack on small screens */
  }
      
      .devices-header,
      .device-item {
        grid-template-columns: 1fr;
        text-align: center;
        gap: var(--space-3);
      }
      
      .device-info {
        justify-content: center;
      }

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

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

      .hero-title {
        font-size: var(--text-2xl);
      }

      .breadcrumb {
        display: none;
      }

      .notification {
        right: var(--space-4);
        left: var(--space-4);
        max-width: none;
      }

      .modal-actions {
        flex-direction: column;
      }
    

     

      .header-container {
        grid-template-columns: 1fr 1fr 1fr;
        font-size: var(--text-sm);
      }

      .device-grid,
      .groups-grid {
        grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
      }
    }

    @media (max-width: 480px) {
      .hero-content {
        padding: var(--space-6);
      }

      .form-title {
        font-size: var(--text-2xl);
      }

      .btn {
        padding: var(--space-3) var(--space-4);
      }

      .device-grid,
      .groups-grid {
        grid-template-columns: 1fr;
      }

      .popup-content {
        padding: var(--space-4);
      }
    }

    @media (prefers-reduced-motion: reduce) {
      *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
      }
    }

    @media (prefers-contrast: high) {
      .card {
        border-width: 3px;
      }

      .tab-buttons button {
        border-width: 3px;
      }
    }

    /* @media (prefers-color-scheme: dark) {
      :root {
        --gray-50: #1f2937;
        --gray-100: #374151;
        --gray-200: #4b5563;
        --gray-900: #f9fafb;
      }

      .popup-content {
        background: var(--gray-800);
      }
    } */

    @media print {
      .loading-overlay,
      .notification,
      .confirm,
      .popup {
        display: none !important;
      }

      .hero-section {
        display: none;
      }

      .main-container {
        grid-template-columns: 1fr;
      }

      .header {
        position: static;
      }
    }

    @media screen and (max-width: 1380px) and (max-height: 800px) {
      html {
        font-size: 85%;
      }

      * {
        box-sizing: border-box;
      }

      body {
        padding: 0;
        margin: 0;
      }

      .main-container {
        gap: 0.8rem;
      }

      .hero-section,
      .form-section {
        padding: 0.8em;
      }

      img {
        max-width: 100%;
        height: auto;
      }
    }