:root {
    --color-primary-50: #f0f9ff;
    --color-primary-100: #e0f2fe;
    --color-primary-200: #bae6fd;
    --color-primary-300: #7dd3fc;
    --color-primary-500: #0ea5e9;
    --color-primary-600: #0284c7;
    --color-primary-700: #0369a1;
    --color-primary-900: #0c4a6e;
    
    --color-neutral-50: #fafafa;
    --color-neutral-100: #f3f4f6;
    --color-neutral-200: #e5e7eb;
    --color-neutral-300: #d1d5db;
    --color-neutral-400: #9ca3af;
    --color-neutral-500: #64748b;
    --color-neutral-600: #374151;
    --color-neutral-700: #1f2937;
    --color-neutral-900: #1e293b;
    
    --color-success-50: #dcfce7;
    --color-success-100: #bbf7d0;
    --color-success-600: #166534;
    --color-error-50: #fef2f2;
    --color-error-100: #fecaca;
    --color-error-600: #dc2626;
    
    --color-bg-primary: #ffffff;
    --color-bg-secondary: #fafafa;
    --color-bg-muted: #f8fafc;
    --color-bg-accent: #f0f9ff;
    
    --color-text-primary: #374151;
    --color-text-secondary: #64748b;
    --color-text-muted: #9ca3af;
    --color-text-accent: #0c4a6e;
    
    --gradient-primary: linear-gradient(135deg, #7dd3fc 0%, #0ea5e9 50%, #0369a1 100%);
    --gradient-primary-hover: linear-gradient(135deg, #60a5fa 0%, #0284c7 50%, #1e40af 100%);
    --gradient-light: linear-gradient(135deg, #f0f9ff 0%, #e0f2fe 50%, #bae6fd 100%);
    
    --shadow-sm: 0 2px 4px rgba(14, 165, 233, 0.06);
    --shadow-md: 0 4px 20px rgba(14, 165, 233, 0.05);
    --shadow-lg: 0 8px 30px rgba(14, 165, 233, 0.08);
    --shadow-xl: 0 12px 40px rgba(14, 165, 233, 0.1);
    
    --radius-sm: 6px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 20px;
    
    --transition-fast: 0.2s ease;
    --transition-smooth: 0.3s ease;
  }
  
  * {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
  }
  
  body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    line-height: 1.6;
    color: var(--color-text-primary);
    background-color: var(--color-bg-secondary);
    font-size: 14px;
  }
  
  .header {
    background: var(--color-bg-primary);
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: 100;
  }
  
  .header-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1.5rem 1rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
    align-items: center;
  }
  
  .brand {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    text-decoration: none;
    transition: var(--transition-fast);
    cursor: pointer;
    padding: 0.5rem;
    border-radius: var(--radius-md);
  }
  
  .logo {
    height: 32px;
    width: auto;
    transition: var(--transition-fast);
    filter: 
      drop-shadow(0 2px 4px rgba(3, 105, 161, 0.4))
      drop-shadow(0 4px 8px rgba(14, 165, 233, 0.3))
      drop-shadow(0 8px 16px rgba(125, 211, 252, 0.2))
      drop-shadow(0 0 20px rgba(14, 165, 233, 0.1));
  }
  
  .brand:hover .logo {
    transform: scale(1.05) translateY(-1px);
    filter: 
      drop-shadow(0 8px 16px rgba(14, 165, 233, 0.7))
      drop-shadow(0 16px 24px rgba(14, 165, 233, 0.4))
      drop-shadow(0 24px 32px rgba(14, 165, 233, 0.3))
      drop-shadow(0 0 48px rgba(14, 165, 233, 0.2));
  }
  
  .church-name {
    font-size: 1.1rem;
    font-weight: 600;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    transition: var(--transition-fast);
  }
  
  .brand:hover .church-name {
    background: var(--gradient-primary-hover);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    transform: translateY(-1px);
  }
  
  .nav {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
    justify-content: center;
  }
  
  .nav-link {
    text-decoration: none;
    color: var(--color-text-secondary);
    font-weight: 500;
    padding: 0.6rem 0.8rem;
    border-radius: var(--radius-md);
    transition: var(--transition-fast);
    border: 1px solid transparent;
    font-size: 0.9rem;
  }
  
  .nav-link:hover {
    color: var(--color-primary-600);
    background: var(--gradient-light);
    transform: translateY(-1px);
    border-color: var(--color-primary-200);
    box-shadow: 0 4px 12px rgba(14, 165, 233, 0.15);
  }
  
  .nav-link.active {
    color: var(--color-primary-700);
    background: linear-gradient(135deg, var(--color-primary-50) 0%, rgba(240, 249, 255, 0.8) 100%);
    border: 1px solid var(--color-primary-300);
    font-weight: 600;
    box-shadow: 0 2px 8px rgba(14, 165, 233, 0.1);
  }
  
  .main {
    padding: 2rem 0;
  }
  
  .container {
    max-width: 1000px;
    margin: 0 auto;
    padding: 0 1rem;
  }
  
  .video-section,
  .livestream-section {
    background: var(--color-bg-primary);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    box-shadow: var(--shadow-md);
  }
  
  .video-title {
    font-size: 1.4rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--color-text-accent);
  }
  
  .video-container {
    position: relative;
    width: 100%;
    height: 0;
    padding-bottom: 56.25%;
    border-radius: var(--radius-md);
    overflow: hidden;
    margin-bottom: 1.5rem;
  }
  
  .video-container iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
  }
  
  .video-meta {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    color: var(--color-text-secondary);
    font-size: 0.9rem;
  }
  
  .meta-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
  }
  
  .meta-label {
    font-weight: 500;
    color: var(--color-text-primary);
  }
  
  .live-status {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    border-radius: var(--radius-xl);
    font-weight: 500;
    font-size: 0.85rem;
    margin-bottom: 1rem;
  }
  
  .live-status.live {
    background-color: var(--color-success-50);
    color: var(--color-success-600);
    border: 1px solid var(--color-success-100);
  }
  
  .live-status.offline {
    background-color: var(--color-neutral-100);
    color: var(--color-neutral-500);
    border: 1px solid var(--color-neutral-300);
  }
  
  .live-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background-color: currentColor;
  }
  
  .live-status.live .live-dot {
    animation: pulse 2s infinite;
  }
  
  @keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
  }
  
  .stream-info {
    margin-top: 2rem;
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  
  .service-info {
    display: flex;
    flex-direction: column;
  }
  
  .combined-service-section {
    background: linear-gradient(135deg, var(--color-bg-muted) 0%, var(--color-primary-50) 100%);
    border-radius: var(--radius-md);
    border-left: 4px solid var(--color-primary-500);
    padding: 1.5rem;
  }
  
  .combined-service-section h3 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-text-primary);
    margin-bottom: 1rem;
  }
  
  .service-schedule {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    text-align: center;
    margin-bottom: 1rem;
  }
  
  .schedule-main {
    display: flex;
    flex-direction: column;
  }
  
  .schedule-day {
    font-weight: 500;
    color: var(--color-text-primary);
    font-size: 0.95rem;
  }
  
  .schedule-time {
    font-weight: 600;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-size: 1.1rem;
  }
  
  .countdown-compact {
    background: linear-gradient(135deg, var(--color-primary-100) 0%, var(--color-primary-50) 100%);
    border: 1px solid var(--color-primary-200);
    padding: 1rem;
    border-radius: var(--radius-md);
    text-align: center;
    width: 100%;
  }
  
  .countdown-label {
    font-size: 0.75rem;
    color: var(--color-primary-700);
    margin-bottom: 0.25rem;
    font-weight: 500;
  }
  
  .countdown-time {
    font-weight: 700;
    color: var(--color-primary-600);
    font-size: 1.1rem;
    line-height: 1.2;
  }
  
  .action-buttons {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    justify-content: center;
    order: -1;
  }
  
  .action-btn {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1.25rem 1.5rem;
    border-radius: var(--radius-md);
    text-decoration: none;
    font-weight: 600;
    font-size: 1rem;
    transition: var(--transition-fast);
    box-shadow: var(--shadow-sm);
    border: none;
  }
  
  .action-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
  }
  
  .action-btn.primary {
    background: var(--gradient-primary);
    color: white;
  }
  
  .action-btn.primary:hover {
    background: var(--gradient-primary-hover);
    box-shadow: 0 8px 25px rgba(102, 126, 234, 0.3);
  }
  
  .btn-text {
    flex: 1;
  }
  
  .btn-icon {
    font-size: 1.2rem;
    transition: var(--transition-fast);
  }
  
  .action-btn:hover .btn-icon {
    transform: translateX(3px);
  }
  
  .archive-header {
    margin-bottom: 2rem;
  }
  
  .archive-header h1 {
    font-size: 1.8rem;
    font-weight: 600;
    color: var(--color-text-accent);
    margin-bottom: 1rem;
  }
  
  .archive-controls {
    display: flex;
    gap: 0.5rem;
    flex-direction: column;
  }
  
  .filter-select,
  .search-input {
    padding: 0.75rem 1rem;
    border: 1px solid var(--color-neutral-300);
    border-radius: var(--radius-sm);
    font-size: 0.95rem;
    background-color: var(--color-bg-primary);
    transition: var(--transition-fast);
    width: 100%;
  }
  
  .filter-select:focus,
  .search-input:focus {
    outline: none;
    border-color: var(--color-primary-500);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
  }
  
  .archive-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.5rem;
    max-width: 1000px;
    margin: 0 auto;
    min-height: 200px;
  }
  
  .loading,
  .no-content,
  .no-results,
  .error {
    grid-column: 1 / -1;
    text-align: center;
    padding: 2rem 1rem;
    color: var(--color-text-secondary);
  }
  
  .video-card {
    background: var(--color-bg-primary);
    border-radius: var(--radius-lg);
    padding: 1.25rem;
    box-shadow: var(--shadow-md);
    transition: var(--transition-fast);
  }
  
  .video-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
  }
  
  .video-card .video-container {
    margin-bottom: 1rem;
  }
  
  .card-title {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--color-text-accent);
  }
  
  .video-section .video-description {
    margin-top: 1.5rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--color-neutral-200);
    color: var(--color-text-secondary);
    line-height: 1.7;
    font-size: 0.95rem;
  }
  
  .video-card .video-description {
    margin-top: 1rem;
    color: var(--color-text-secondary);
    line-height: 1.6;
    font-size: 0.85rem;
  }
  
  .video-card.clickable {
    cursor: pointer;
    position: relative;
  }
  
  .video-card.clickable:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
  }
  
  .click-hint {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: var(--gradient-primary);
    color: white;
    padding: 0.4rem 1rem;
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    font-weight: 600;
    opacity: 0;
    transition: var(--transition-fast);
    box-shadow: var(--shadow-sm);
  }
  
  .video-card.clickable:hover .click-hint {
    opacity: 1;
  }
  
  .modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition-smooth);
  }
  
  .modal.active {
    opacity: 1;
    visibility: visible;
  }
  
  .modal-backdrop {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
  }
  
  .modal-content {
    position: relative;
    width: 95%;
    max-width: 1000px;
    max-height: 95vh;
    background: var(--color-bg-primary);
    border-radius: var(--radius-lg);
    overflow-y: auto;
    transform: scale(0.9) translateY(50px);
    transition: var(--transition-smooth);
  }
  
  .modal.active .modal-content {
    transform: scale(1) translateY(0);
  }
  
  .modal-close {
    position: absolute;
    top: 1rem;
    right: 1rem;
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.9);
    border: none;
    border-radius: 50%;
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--color-text-primary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1001;
    transition: var(--transition-fast);
  }
  
  .modal-close:hover {
    background: var(--color-bg-primary);
    color: var(--color-text-accent);
  }
  
  .modal-video-section {
    padding: 1.5rem;
  }
  
  .offline-message {
    aspect-ratio: 16/9;
    width: 100%;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    background: linear-gradient(135deg, var(--color-bg-accent) 0%, var(--color-neutral-100) 100%);
    border-radius: var(--radius-md);
    text-align: center;
    padding: 1.5rem;
    box-sizing: border-box;
    min-height: 250px;
  }
  
  .offline-icon {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    opacity: 0.7;
  }
  
  .offline-message h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--color-text-primary);
    margin-bottom: 0.5rem;
  }
  
  .offline-message p {
    color: var(--color-text-secondary);
    margin-bottom: 1rem;
    line-height: 1.6;
  }
  
  .offline-suggestion {
    margin-top: 1rem;
    padding-top: 1rem;
    border-top: 1px solid var(--color-neutral-200);
  }
  
  .offline-suggestion a {
    color: var(--color-primary-500);
    text-decoration: none;
    font-weight: 500;
  }
  
  .offline-suggestion a:hover {
    text-decoration: underline;
  }
  
  .pagination-info {
    text-align: center;
    margin: 1rem 0;
    color: var(--color-text-secondary);
    font-size: 0.9rem;
  }
  
  .pagination-controls {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.25rem;
    margin: 2rem 0;
    flex-wrap: wrap;
  }
  
  .pagination-btn,
  .page-number {
    padding: 0.4rem 0.6rem;
    border: 1px solid var(--color-neutral-300);
    background: var(--color-bg-primary);
    color: var(--color-text-primary);
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-size: 0.85rem;
    transition: var(--transition-fast);
  }
  
  .pagination-btn:hover:not(:disabled),
  .page-number:hover {
    background: var(--color-neutral-100);
    border-color: var(--color-neutral-400);
  }
  
  .pagination-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    background: var(--color-neutral-50);
  }
  
  .page-numbers {
    display: flex;
    gap: 0.1rem;
  }
  
  .page-number {
    min-width: 36px;
  }
  
  .page-number.active {
    background: var(--gradient-primary);
    border: 1px solid transparent;
    color: white;
  }
  
  @media (min-width: 480px) {
    body { font-size: 16px; }
    
    .video-title { font-size: 1.6rem; }
    
    .church-name { font-size: 1.25rem; }
    
    .logo { height: 36px; }
    
    .archive-header h1 { font-size: 2rem; }
    
    .archive-controls {
      flex-direction: row;
      gap: 1rem;
    }
    
    .search-input {
      flex: 1;
      min-width: 200px;
    }
    
    .filter-select {
      min-width: 140px;
      width: auto;
    }
  }
  
  @media (min-width: 768px) {
    .header-content {
      flex-direction: row;
      justify-content: space-between;
      padding: 1rem 2rem;
    }
    
    .nav {
      gap: 1rem;
      justify-content: flex-end;
    }
    
    .nav-link {
      padding: 0.75rem 1rem;
      font-size: 0.95rem;
    }
    
    .nav-link:hover {
      transform: translateY(-2px);
    }
    
    .container {
      padding: 0 2rem;
    }
    
    .main {
      padding: 3rem 0;
    }
    
    .video-section,
    .livestream-section {
      padding: 2rem;
    }
    
    .video-title {
      font-size: 2rem;
    }
    
    .video-meta {
      flex-direction: row;
      gap: 2rem;
    }
    
    .stream-info {
      grid-template-columns: 1fr 1fr;
      gap: 3rem;
      align-items: center;
    }
    
    .action-buttons {
      order: unset;
    }
    
    .service-schedule {
      flex-direction: row;
      justify-content: space-between;
      text-align: left;
    }
    
    .countdown-compact {
      min-width: 100px;
      width: auto;
      padding: 0.75rem 1rem;
    }
    
    .countdown-time {
      font-size: 1.1rem;
    }
    
    .archive-grid {
      grid-template-columns: 1fr 1fr;
      gap: 2rem;
    }
    
    .video-card {
      padding: 1.5rem;
    }
    
    .card-title {
      font-size: 1.25rem;
    }
    
    .modal-content {
      width: 90%;
      max-height: 90vh;
    }
    
    .modal-video-section {
      padding: 2rem;
    }
    
    .offline-message {
      padding: 2rem;
      min-height: auto;
    }
    
    .offline-message h3 {
      font-size: 1.5rem;
    }
    
    .offline-icon {
      font-size: 3rem;
    }
    
    .pagination-controls {
      gap: 0.5rem;
    }
    
    .pagination-btn,
    .page-number {
      padding: 0.5rem 0.75rem;
      font-size: 0.9rem;
    }
    
    .page-numbers {
      gap: 0.25rem;
    }
    
    .page-number {
      min-width: 40px;
    }
  }
  
  @media (min-width: 1024px) {
    .church-name {
      font-size: 1.5rem;
    }
    
    .logo {
      height: 40px;
    }
    
    .archive-header h1 {
      font-size: 2.5rem;
    }
    
    .video-meta {
      font-size: 0.95rem;
    }
    
    .action-btn {
      padding: 1rem 1.5rem;
    }
    
    .countdown-time {
      font-size: 1.2rem;
    }
    
    .pagination-info {
      font-size: 0.95rem;
    }
  }