* {
      margin: 0;
      padding: 0;
      box-sizing: border-box;
    }

    body {
      font-family: 'Noto Sans Hebrew', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
      background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
      min-height: 100vh;
      padding: env(safe-area-inset-top) env(safe-area-inset-right) env(safe-area-inset-bottom) env(safe-area-inset-left);
      color: #1f2937;
      -webkit-font-smoothing: antialiased;
      touch-action: pan-y;
    }

    .container {
      max-width: 640px;
      margin: 0 auto;
      min-height: 100vh;
      background: #ffffff;
      box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
    }

    /* Header */
    header {
      background: linear-gradient(135deg, #2563eb 0%, #1d4ed8 100%);
      color: white;
      padding: 1.25rem 1rem;
      display: flex;
      align-items: center;
      justify-content: space-between;
      box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
      position: sticky;
      top: 0;
      z-index: 101;
      transition: background 0.3s;
    }

    header.viewing-other-date {
      background: linear-gradient(135deg, #dc2626 0%, #b91c1c 100%);
    }

    .header-content {
      display: flex;
      align-items: center;
      gap: 0.75rem;
    }

    .logo {
      width: 36px;
      height: 36px;
      border-radius: 8px;
    }

    h1 {
      font-size: 1.5rem;
      font-weight: 700;
    }

    .header-actions {
      display: flex;
      gap: 0.5rem;
      align-items: center;
    }

    .header-date-picker {
      display: none;
      position: absolute;
      opacity: 0;
      pointer-events: none;
    }

    .header-btn {
      background: rgba(255, 255, 255, 0.2);
      border: none;
      color: white;
      font-size: 1.5rem;
      width: 40px;
      height: 40px;
      border-radius: 50%;
      cursor: pointer;
      display: flex;
      align-items: center;
      justify-content: center;
      transition: background 0.2s;
    }

    .header-btn:active {
      background: rgba(255, 255, 255, 0.3);
    }

    /* Stats Bar */
    .stats {
      background: #f9fafb;
      padding: 1rem;
      display: flex;
      justify-content: space-around;
      border-bottom: 2px solid #e5e7eb;
      gap: 0.5rem;
      position: sticky;
      top: 72px;
      z-index: 100;
    }

    .stat {
      text-align: center;
      flex: 1;
    }

    .stat-value {
      font-size: 1.75rem;
      font-weight: 700;
      color: #2563eb;
      display: block;
    }

    .stat-label {
      font-size: 0.875rem;
      color: #6b7280;
      margin-top: 0.25rem;
    }

    /* Main Content */
    main {
      padding: 1rem;
      padding-bottom: 2rem;
    }

    .day-group {
      margin-bottom: 1rem;
      border: 1px solid #e5e7eb;
      border-radius: 12px;
      overflow: hidden;
      background: white;
    }

    .day-group.completed {
      opacity: 0.6;
      border-color: #10b981;
    }

    summary {
      padding: 1rem;
      cursor: pointer;
      list-style: none;
      background: linear-gradient(to bottom, #ffffff, #f9fafb);
      font-size: 1.125rem;
      font-weight: 600;
      color: #1f2937;
      border-bottom: 1px solid #e5e7eb;
      user-select: none;
      -webkit-tap-highlight-color: transparent;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 0.75rem;
    }

    summary::-webkit-details-marker {
      display: none;
    }

    .day-header {
      display: flex;
      align-items: center;
      gap: 0.5rem;
      flex: 1;
    }

    .day-arrow {
      color: #6b7280;
      transition: transform 0.2s;
      font-size: 1rem;
      line-height: 1;
    }

    details[open] .day-arrow {
      transform: rotate(-90deg);
    }

    .day-info {
      flex: 1;
    }

    .day-actions {
      display: flex;
      gap: 0.25rem;
      align-items: center;
    }

    .day-action-btn {
      background: none;
      border: none;
      cursor: pointer;
      padding: 0.5rem;
      border-radius: 6px;
      display: flex;
      align-items: center;
      justify-content: center;
      transition: background 0.2s;
      font-size: 1.25rem;
      line-height: 1;
      color: #9ca3af;
      width: 36px;
      height: 36px;
    }

    .day-action-btn.reset {
      font-size: 1.5rem;
    }

    .day-action-btn:hover {
      background: rgba(0, 0, 0, 0.05);
      color: #6b7280;
    }

    .day-action-btn:active {
      background: rgba(0, 0, 0, 0.1);
      color: #4b5563;
    }

    summary:active {
      background: #f3f4f6;
    }

    .day-meta {
      font-size: 0.875rem;
      color: #6b7280;
      margin-top: 0.25rem;
    }

    .cards-container {
      padding: 1rem;
      display: flex;
      flex-direction: column;
      gap: 0;
    }

    .cards-container > * {
      margin-bottom: 0.75rem;
    }

    .cards-container > *:last-child {
      margin-bottom: 0;
    }

    .loading {
      text-align: center;
      padding: 2rem;
      color: #6b7280;
      font-style: italic;
    }

    /* Halakha Cards */
    .halakha-card {
      background: white;
      border: 2px solid #e5e7eb;
      border-radius: 12px;
      padding: 1rem;
      font-size: 1.125rem;
      line-height: 1.8;
      color: #1f2937;
      position: relative;
      transition: transform 0.3s, opacity 0.3s, box-shadow 0.2s;
      touch-action: pan-y;
      cursor: grab;
      box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
    }

    .halakha-card:active {
      cursor: grabbing;
      box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    }

    .halakha-card.swiping {
      transition: none;
    }

    .halakha-card.completed {
      opacity: 0.4;
      background: #f3f4f6;
      border-color: #d1d5db;
    }

    .halakha-card.completed .halakha-text {
      color: #6b7280;
    }

    /* Hide completed items when setting is enabled */
    .hide-completed .halakha-card.completed {
      max-height: 0;
      opacity: 0;
      margin: 0;
      padding: 0;
      border: 0;
      overflow: hidden;
      transition: max-height 0.3s ease, opacity 0.3s ease, margin 0.3s ease, padding 0.3s ease;
    }

    .hide-completed .day-group.completed {
      max-height: 0;
      opacity: 0;
      margin: 0;
      padding: 0;
      border: 0;
      overflow: hidden;
      transition: max-height 0.3s ease, opacity 0.3s ease, margin 0.3s ease, padding 0.3s ease;
    }

    .completed-counter {
      text-align: center;
      background: #f3f4f6;
      color: #6b7280;
      font-size: 0.875rem;
      border-radius: 8px;
      font-weight: 500;
      display: none;
      padding: 0.5rem;
      margin-bottom: 0.5rem;
    }

    .hide-completed .completed-counter {
      display: block;
    }

    .hide-completed .completed-counter:empty,
    .hide-completed .completed-counter[data-count="0"] {
      display: none;
    }

    .completed-days-counter {
      margin-bottom: 1rem;
    }

    .halakha-text {
      text-align: justify;
    }

    .halakha-text b {
      font-weight: 700;
      color: #1f2937;
    }

    .halakha-text small {
      font-size: 0.9em;
      color: #6b7280;
    }

    /* Chapter Divider */
    .chapter-divider {
      text-align: center;
      margin: 1.5rem 0 1rem;
      position: relative;
    }

    .chapter-divider::before,
    .chapter-divider::after {
      content: '';
      position: absolute;
      top: 50%;
      width: 40%;
      height: 1px;
      background: linear-gradient(to right, transparent, #d1d5db, transparent);
    }

    .chapter-divider::before {
      left: 0;
    }

    .chapter-divider::after {
      right: 0;
    }

    .chapter-divider span {
      background: white;
      padding: 0.5rem 1rem;
      font-size: 1rem;
      font-weight: 600;
      color: #2563eb;
      border: 1px solid #e5e7eb;
      border-radius: 20px;
      display: inline-block;
      position: relative;
      z-index: 1;
    }

    /* Settings Panel */
    .settings-panel {
      position: fixed;
      top: 0;
      left: 0;
      width: 100%;
      max-width: 400px;
      height: 100vh;
      background: white;
      box-shadow: 4px 0 16px rgba(0, 0, 0, 0.2);
      transform: translateX(-100%);
      transition: transform 0.3s;
      z-index: 1000;
      display: flex;
      flex-direction: column;
    }

    .settings-panel.open {
      transform: translateX(0);
    }

    .settings-header {
      background: #2563eb;
      color: white;
      padding: 1.25rem 1rem;
      display: flex;
      align-items: center;
      justify-content: space-between;
    }

    .settings-header h2 {
      font-size: 1.25rem;
      font-weight: 700;
    }

    .close-btn {
      background: none;
      border: none;
      color: white;
      font-size: 1.75rem;
      cursor: pointer;
      width: 40px;
      height: 40px;
      display: flex;
      align-items: center;
      justify-content: center;
      border-radius: 50%;
    }

    .close-btn:active {
      background: rgba(255, 255, 255, 0.2);
    }

    .settings-content {
      padding: 0;
      flex: 1;
      display: flex;
      flex-direction: column;
      overflow: hidden;
    }

    .settings-scrollable {
      flex: 1;
      overflow-y: auto;
    }

    .settings-section {
      padding: 1.5rem;
      display: flex;
      flex-direction: column;
      gap: 0.75rem;
      border-bottom: 1px solid #e5e7eb;
    }

    .settings-section:last-of-type {
      border-bottom: none;
    }

    .settings-label {
      font-size: 0.875rem;
      font-weight: 600;
      color: #374151;
    }

    .toggle-container {
      display: flex;
      gap: 0.5rem;
      background: #f3f4f6;
      padding: 0.25rem;
      border-radius: 8px;
    }

    .toggle-btn {
      flex: 1;
      padding: 0.625rem 1rem;
      border: none;
      background: transparent;
      color: #6b7280;
      font-size: 0.875rem;
      font-weight: 500;
      border-radius: 6px;
      cursor: pointer;
      transition: all 0.2s;
    }

    .toggle-btn:hover {
      color: #374151;
    }

    .toggle-btn.active {
      background: white;
      color: #2563eb;
      box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    }

    .date-row {
      display: flex;
      gap: 0.5rem;
      align-items: stretch;
    }

    .date-row > * {
      flex: 1;
      min-width: 0;
    }

    .date-input {
      padding: 0.75rem;
      border: 2px solid #2563eb;
      border-radius: 8px;
      font-size: 1rem;
      font-family: inherit;
      transition: all 0.2s;
      background: white;
    }

    .date-input-inactive {
      background: #f3f4f6;
      color: #9ca3af;
      border-color: #d1d5db;
    }

    .btn-compact {
      white-space: nowrap;
      padding: 0.6rem 1rem;
    }

    .btn-secondary {
      background: #f9fafb;
      border-color: #e5e7eb;
      color: #9ca3af;
    }

    .btn-secondary:hover {
      background: #f3f4f6;
      border-color: #d1d5db;
      color: #6b7280;
    }

    .btn-secondary:active {
      background: #e5e7eb;
    }

    .btn {
      border: 1px solid #d1d5db;
      padding: 0.75rem 1rem;
      font-size: 0.875rem;
      font-weight: 500;
      border-radius: 6px;
      cursor: pointer;
      width: 100%;
      transition: all 0.2s;
      background: white;
      color: #374151;
    }

    .btn:hover {
      background: #f9fafb;
      border-color: #9ca3af;
    }

    .btn:active {
      background: #f3f4f6;
    }

    .btn-primary {
      background: #eff6ff;
      border-color: #2563eb;
      color: #2563eb;
    }

    .btn-primary:hover {
      background: #dbeafe;
    }

    .btn-primary:active {
      background: #bfdbfe;
    }

    .btn-warning {
      background: #fffbeb;
      border-color: #d97706;
      color: #d97706;
    }

    .btn-warning:hover {
      background: #fef3c7;
    }

    .btn-warning:active {
      background: #fde68a;
    }

    .btn-danger {
      background: #fef2f2;
      border-color: #dc2626;
      color: #dc2626;
    }

    .btn-danger:hover {
      background: #fee2e2;
    }

    .btn-danger:active {
      background: #fecaca;
    }

    .settings-warning {
      color: #6b7280;
      font-size: 0.875rem;
      text-align: center;
    }

    /* Overlay */
    .overlay {
      position: fixed;
      top: 0;
      left: 0;
      right: 0;
      bottom: 0;
      background: rgba(0, 0, 0, 0.5);
      opacity: 0;
      pointer-events: none;
      transition: opacity 0.3s;
      z-index: 999;
    }

    .overlay.visible {
      opacity: 1;
      pointer-events: auto;
    }

    /* Empty State */
    .empty-state {
      text-align: center;
      padding: 3rem 1.5rem;
      color: #6b7280;
    }

    .empty-state-icon {
      font-size: 4rem;
      margin-bottom: 1rem;
    }

    .empty-state-title {
      font-size: 1.5rem;
      font-weight: 700;
      color: #1f2937;
      margin-bottom: 0.5rem;
    }

    .empty-state-text {
      font-size: 1rem;
      line-height: 1.6;
    }

    /* Install Prompt */
    .install-prompt {
      position: fixed;
      bottom: 1rem;
      left: 1rem;
      right: 1rem;
      max-width: 500px;
      margin: 0 auto;
      background: white;
      border: 2px solid #2563eb;
      border-radius: 12px;
      padding: 1rem;
      box-shadow: 0 10px 40px rgba(0, 0, 0, 0.3);
      z-index: 1000;
      display: none;
      animation: slideUp 0.3s ease-out;
    }

    .install-prompt.show {
      display: block;
    }

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

    .install-prompt-content {
      display: flex;
      flex-direction: column;
      gap: 0.75rem;
    }

    .install-prompt-text {
      font-size: 0.95rem;
      color: #1f2937;
      font-weight: 500;
    }

    .install-prompt-buttons {
      display: flex;
      gap: 0.5rem;
    }

    .install-prompt-btn {
      flex: 1;
      padding: 0.75rem;
      border: none;
      border-radius: 8px;
      font-size: 0.875rem;
      font-weight: 600;
      cursor: pointer;
      transition: all 0.2s;
    }

    .install-prompt-btn.primary {
      background: #2563eb;
      color: white;
    }

    .install-prompt-btn.primary:active {
      background: #1d4ed8;
    }

    .install-prompt-btn.secondary {
      background: #f3f4f6;
      color: #6b7280;
    }

    .install-prompt-btn.secondary:active {
      background: #e5e7eb;
    }

    .dedication {
      background: #fef3c7;
      padding: 1rem;
      text-align: center;
      font-size: 0.875rem;
      color: #92400e;
      font-weight: 500;
    }

    .dedication b {
      font-weight: 700;
    }

    .footer {
      background: #f9fafb;
      padding: 0.5rem 1.5rem;
      text-align: center;
      font-size: 0.75rem;
      color: #6b7280;
    }

    .footer-content {
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 0.25rem;
      flex-wrap: wrap;
      line-height: 1.6;
    }

    .footer-badge {
      margin-right: 0.5rem;
      display: inline-flex;
      align-items: center;
      gap: 0.2rem;
      padding: 0.2rem 0.4rem;
      border: 1px solid #d1d5db;
      border-radius: 6px;
      background: white;
    }

    .footer-avatar {
      width: 24px;
      height: 24px;
      border-radius: 50%;
      object-fit: cover;
    }

    .footer-link {
      color: inherit;
      text-decoration: none;
      display: inline-flex;
      align-items: center;
      gap: 0.25rem;
    }

    .footer-link:hover {
      opacity: 0.8;
    }

    .claude-icon {
      width: 18px;
      height: 18px;
      vertical-align: middle;
    }

    .whatsapp-icon {
      width: 16px;
      height: 16px;
      vertical-align: middle;
    }

    .settings-dedication {
      background: #fef3c7;
      padding: 1rem;
      text-align: center;
      font-size: 0.875rem;
      color: #92400e;
      font-weight: 500;
    }

    .yechi {
      background: #667eea;
      color: white;
      padding: 0.5rem;
    }

    .changelog-version {
      border: 1px solid #e5e7eb;
      border-radius: 8px;
      overflow: hidden;
      margin-bottom: 0.5rem;
    }

    .changelog-version:last-child {
      margin-bottom: 0;
    }

    .changelog-version summary {
      padding: 0.75rem;
      cursor: pointer;
      background: #f9fafb;
      font-weight: 600;
      font-size: 0.875rem;
      color: #374151;
      user-select: none;
      list-style: none;
    }

    .changelog-version summary::-webkit-details-marker {
      display: none;
    }

    .changelog-version summary:hover {
      background: #f3f4f6;
    }

    .changelog-arrow {
      color: #6b7280;
      transition: transform 0.2s;
      display: inline-block;
      margin-left: 0.5rem;
    }

    .changelog-version[open] .changelog-arrow {
      transform: rotate(-90deg);
    }

    .changelog-items {
      padding: 0.75rem;
      background: white;
    }

    .changelog-item {
      padding: 0.5rem 0;
      font-size: 0.875rem;
      color: #6b7280;
      line-height: 1.5;
      border-bottom: 1px solid #f3f4f6;
    }

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

    .changelog-item::before {
      content: '• ';
      color: #2563eb;
      font-weight: bold;
    }