/* Shredly - Mobile Styles */

/* Mobile-First Responsive Design (320px - 767px) */

/* Touch Optimization */
@media (max-width: 767px) {
  /* Ensure all interactive elements meet 44px minimum */
  .tab-btn,
  .settings-btn,
  .week-nav,
  .day-tile,
  .calendar-day,
  .close-btn {
    min-width: 44px;
    min-height: 44px;
  }

  /* Mobile Header */
  .header-content {
    padding: var(--spacing-sm) var(--spacing-md);
  }

  .program-dropdown {
    min-width: 180px;
    font-size: 0.9rem;
  }

  /* Mobile Day View */
  .day-header {
    padding: var(--spacing-md);
    flex-direction: column;
    gap: var(--spacing-sm);
    text-align: center;
  }

  .day-nav-controls {
    width: 100%;
    justify-content: space-between;
  }

  .day-nav-controls .day-nav-btn {
    width: 40px;
    height: 40px;
  }

  .day-nav-controls .day-info {
    margin: 0 var(--spacing-sm);
    min-height: 50px;
    display: flex;
    flex-direction: column;
    justify-content: center;
  }

  .day-header h2 {
    font-size: 1.25rem;
  }

  /* Mobile Week View */
  .week-header {
    padding: var(--spacing-md);
  }

  .week-header h2 {
    font-size: 1.25rem;
  }

  .week-grid {
    gap: var(--spacing-xs);
  }

  .day-tile {
    min-height: 70px;
    padding: var(--spacing-sm);
    font-size: 0.9rem;
  }

  /* Mobile Calendar View */
  .calendar-grid {
    gap: 2px;
  }

  .calendar-day {
    min-height: 50px;
    padding: var(--spacing-xs);
    font-size: 0.8rem;
  }

  /* Mobile Tab Navigation */
  .tab-navigation {
    padding: var(--spacing-xs) 0;
    z-index: 1000; /* Ensure tab navigation is above chat view */
  }

  .tab-btn {
    padding: var(--spacing-xs);
    gap: 2px;
  }

  .tab-btn span {
    font-size: 0.7rem;
  }

  /* Mobile Modal */
  .modal {
    padding: var(--spacing-sm);
    z-index: 10001 !important;
    position: fixed !important;
    top: 0 !important;
    left: 0 !important;
    width: 100% !important;
    height: 100% !important;
    height: 100vh !important;
    height: 100dvh !important;
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
    background: rgba(0, 0, 0, 0.8) !important;
  }

  /* Critical: Ensure modal completely covers screen and hides all other content */
  .modal.show {
    z-index: 10001 !important;
    background: rgba(0, 0, 0, 0.9) !important;
  }

  /* Hide chat view and other views when modal is open */
  .modal.show ~ #chat-view,
  .modal.show ~ .app-content {
    display: none !important;
  }

  /* Mobile Modal Content */
  .modal-content {
    max-height: 88vh;
    max-height: 88dvh;
    width: 95% !important;
    z-index: 10002 !important;
    max-width: 95% !important;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
    border-radius: 12px;
  }

  .modal-header {
    padding: var(--spacing-lg) var(--spacing-md);
  }

  .modal-header h2 {
    font-size: 1.1rem;
    font-weight: 600;
  }

  /* Smaller modal header for settings */
  #settings-modal .modal-header h2 {
    font-size: 1rem;
  }

  .modal-body {
    padding: 0 var(--spacing-md) var(--spacing-md);
  }

  /* Mobile Settings Modal Specific Improvements */
  #settings-modal .modal-content {
    max-height: 90vh;
  }

  #settings-modal .modal-body {
    padding: 0;
  }

  #settings-modal .settings-section {
    margin-bottom: var(--spacing-md);
  }

  #settings-modal .settings-section:last-child {
    margin-bottom: 0;
  }

  #settings-modal .section-header-settings {
    padding: var(--spacing-sm) var(--spacing-md);
    margin: 0;
  }

  #settings-modal .section-header-settings h3 {
    font-size: 0.95rem;
    font-weight: 600;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
  }

  #settings-modal .section-content-settings {
    padding: var(--spacing-md) var(--spacing-md) var(--spacing-sm);
  }

  #settings-modal .settings-item {
    margin-bottom: var(--spacing-md);
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: var(--spacing-sm);
  }

  #settings-modal .settings-item:last-child {
    margin-bottom: 0;
  }

  #settings-modal .settings-label {
    font-size: 0.85rem;
    font-weight: 500;
    margin-bottom: var(--spacing-xs);
    line-height: 1.2;
  }

  #settings-modal .settings-description {
    font-size: 0.75rem;
    color: var(--text-secondary);
    line-height: 1.3;
  }

  #settings-modal .settings-control {
    flex-shrink: 0;
    min-width: fit-content;
  }

  #settings-modal .settings-btn {
    padding: var(--spacing-xs) var(--spacing-sm);
    font-size: 0.75rem;
    border-radius: var(--border-radius-sm);
  }

  #settings-modal .settings-input,
  #settings-modal .settings-select {
    padding: var(--spacing-xs);
    font-size: 0.75rem;
    min-width: 100px;
  }

  /* Mobile Data Management Section Overrides */
  #settings-modal .data-section-title h4 {
    font-size: 0.9rem;
    margin-bottom: var(--spacing-xs);
  }

  #settings-modal .data-section-title p {
    font-size: 0.7rem;
  }

  #settings-modal .data-option-title {
    font-size: 0.8rem;
    margin-bottom: var(--spacing-xs);
  }

  #settings-modal .data-option-description {
    font-size: 0.7rem;
    margin-bottom: var(--spacing-sm);
  }

  #settings-modal .data-option-btn {
    font-size: 0.7rem;
    padding: var(--spacing-xs) var(--spacing-sm);
  }

  #settings-modal .data-option-card {
    padding: var(--spacing-md);
    min-height: 120px; /* Slightly smaller minimum height on mobile */
  }

  /* Program dropdown mobile improvements */
  #settings-modal .current-program-name {
    font-size: 0.85rem;
    font-weight: 500;
  }

  #settings-modal .current-program-meta {
    font-size: 0.7rem;
  }

  #settings-modal .dropdown-program-name {
    font-size: 0.8rem;
  }

  #settings-modal .dropdown-program-meta {
    font-size: 0.7rem;
  }

  #settings-modal .dropdown-action-btn {
    font-size: 0.7rem;
    padding: var(--spacing-xs);
  }

  #settings-modal .status-badge {
    font-size: 0.6rem;
    padding: var(--spacing-xs) var(--spacing-sm);
  }

  #settings-modal .program-dropdown-btn {
    font-size: 0.8rem;
    padding: var(--spacing-sm) var(--spacing-md);
  }

  /* Mobile Setup Modal Styles */
  .setup-modal-content {
    width: 98%;
    max-height: 95vh;
  }

  /* Mobile Program Overview Modal Styles */
  .program-overview-modal {
    z-index: 10001 !important;
  }

  .program-overview-modal .modal-content {
    width: 96% !important;
    max-width: 96% !important;
    max-height: 85vh !important;
    margin: var(--spacing-sm);
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
  }

  .program-overview-content {
    padding: var(--spacing-md);
  }

  .program-overview-content h2 {
    font-size: 16px;
    margin-bottom: var(--spacing-sm);
  }

  .program-overview-content p {
    margin-bottom: var(--spacing-sm);
    line-height: 1.5;
  }

  .overview-footer {
    margin-top: 16px;
    padding-top: 12px;
    text-align: center;
  }

  .overview-footer small {
    font-size: 0.85rem;
    opacity: 0.8;
  }

  .setup-form {
    padding: var(--spacing-md);
  }

  .setup-intro {
    padding: var(--spacing-md);
    margin-bottom: var(--spacing-md);
  }

  .setup-fields-container {
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
  }

  .setup-field-input {
    padding: var(--spacing-md);
    font-size: 16px; /* Prevent zoom on iOS */
  }

  .setup-form-actions {
    flex-direction: column-reverse;
    gap: var(--spacing-md);
  }

  .setup-form-actions .btn {
    width: 100%;
    min-height: 48px;
    font-size: 1rem;
  }

  /* Mobile Workout Sections */
  .workout-sections {
    padding: 0;
  }

  .workout-section {
    margin-bottom: var(--spacing-md);
    background-color: var(--bg-secondary);
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: 0 2px 4px var(--shadow-color);
  }

  .section-header {
    padding: var(--spacing-md);
    background-color: var(--bg-tertiary);
    border-bottom: 1px solid var(--border-color);
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    min-height: 44px;
    touch-action: manipulation;
  }

  .section-header:active {
    background-color: var(--accent-orange);
    color: var(--bg-primary);
  }

  .section-title {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-primary);
  }

  .section-chevron {
    color: var(--text-secondary);
    transition: transform var(--transition-speed);
    font-size: 1.2rem;
  }

  .section-header.expanded .section-chevron {
    transform: rotate(180deg);
  }

  .section-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease-out;
  }

  .section-content.expanded {
    max-height: 10000px;
    overflow: visible;
  }

  .exercise-list {
    padding: var(--spacing-md);
  }

  .exercise-item {
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: var(--spacing-md);
    margin-bottom: var(--spacing-md);
    transition: all var(--transition-speed);
  }

  .exercise-item:last-child {
    margin-bottom: 0;
  }

  .exercise-item.partial {
    border-color: var(--accent-orange);
    background-color: rgba(255, 107, 0, 0.1);
  }

  .exercise-item.complete {
    border-color: var(--accent-green);
    background-color: rgba(0, 200, 81, 0.1);
  }

  .exercise-name {
    font-size: 1rem;
    font-weight: 500;
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
  }

  .exercise-inputs {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
  }

  .input-group {
    flex: 1;
    min-width: 80px;
  }

  .input-label {
    display: block;
    font-size: 0.8rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xs);
  }

  .exercise-input {
    width: 100%;
    padding: var(--spacing-sm);
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    color: var(--text-primary);
    font-size: 1rem;
    text-align: center;
    transition: all var(--transition-speed);
    min-height: 44px;
  }

  .exercise-input:focus {
    outline: none;
    border-color: var(--accent-orange);
    background-color: var(--bg-tertiary);
  }

  .exercise-input::placeholder {
    color: var(--text-muted);
    font-style: italic;
  }

  /* Mobile Form Elements */
  .form-group {
    margin-bottom: var(--spacing-md);
  }

  .form-label {
    display: block;
    font-size: 0.9rem;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
    font-weight: 500;
  }

  .form-input {
    width: 100%;
    padding: var(--spacing-md);
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    color: var(--text-primary);
    font-size: 1rem;
    transition: all var(--transition-speed);
    min-height: 44px;
  }

  .form-input:focus {
    outline: none;
    border-color: var(--accent-orange);
    background-color: var(--bg-tertiary);
  }

  .form-button {
    width: 100%;
    padding: var(--spacing-md);
    background-color: var(--accent-orange);
    color: var(--bg-primary);
    border: none;
    border-radius: var(--border-radius);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-speed);
    min-height: 44px;
    touch-action: manipulation;
  }

  .form-button:hover {
    background-color: #e55a00;
  }

  .form-button:active {
    transform: scale(0.98);
  }

  .form-button:disabled {
    background-color: var(--bg-tertiary);
    color: var(--text-muted);
    cursor: not-allowed;
  }

  .form-button.secondary {
    background-color: var(--bg-tertiary);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
  }

  .form-button.secondary:hover {
    background-color: var(--bg-secondary);
  }

  /* Mobile Typography */
  h1 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
  }

  h2 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
  }

  h3 {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
  }

  p {
    font-size: 1rem;
    color: var(--text-primary);
    line-height: 1.6;
    margin-bottom: var(--spacing-md);
  }

  /* Mobile Safe Area Support */
  @supports (padding: max(0px)) {
    .app-header {
      padding-top: max(var(--spacing-md), env(safe-area-inset-top));
    }

    .tab-navigation {
      padding-bottom: max(var(--spacing-sm), env(safe-area-inset-bottom));
    }
  }

  /* Mobile Loading States */
  .loading-spinner {
    width: 24px;
    height: 24px;
    border: 2px solid var(--bg-tertiary);
    border-top: 2px solid var(--accent-orange);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto;
  }

  @keyframes spin {
    0% {
      transform: rotate(0deg);
    }
    100% {
      transform: rotate(360deg);
    }
  }

  /* Mobile Swipe Gestures */
  .swipe-container {
    position: relative;
    overflow: hidden;
    touch-action: pan-x;
  }

  .swipe-indicator {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background-color: var(--accent-orange);
    color: var(--bg-primary);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--border-radius);
    font-size: 0.9rem;
    font-weight: 500;
    opacity: 0;
    transition: opacity var(--transition-speed);
    z-index: 10;
  }

  .swipe-indicator.left {
    left: var(--spacing-md);
  }

  .swipe-indicator.right {
    right: var(--spacing-md);
  }

  .swipe-indicator.visible {
    opacity: 1;
  }

  /* Mobile Chat View Improvements */
  #chat-view {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    height: 100vh;
    /* Do NOT display chat by default; only when active */
    display: none;
    flex-direction: column;
    background: var(--bg-primary);
    z-index: 1;
  }

  /* When chat view is active, it should take full screen */
  #chat-view.active {
    display: flex !important;
  }

  .chat-header {
    flex-shrink: 0;
    padding: var(--spacing-sm);
    background: var(--bg-primary);
    border-bottom: 1px solid var(--border-color);
    z-index: 10;
  }

  .chat-container {
    flex: 1;
    display: flex;
    flex-direction: column;
    height: calc(100vh - 120px); /* Account for header + tab navigation + input */
    overflow: hidden;
    position: relative;
  }

  .chat-messages {
    flex: 1;
    padding: var(--spacing-sm);
    padding-bottom: var(--spacing-md);
    overflow-y: auto;
    overflow-x: hidden;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    -webkit-overflow-scrolling: touch; /* Smooth scrolling on iOS */
    height: 100%;
    min-height: 0; /* Allow flex child to shrink */
  }

  /* Mobile Mode Selection Improvements */
  .chat-mode-selection {
    padding: var(--spacing-md) var(--spacing-sm);
    margin: 0;
    max-width: none;
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: center;
  }

  .mode-selection-header {
    margin-bottom: var(--spacing-md);
  }

  .mode-selection-header h3 {
    font-size: 1.3rem;
    margin-bottom: var(--spacing-sm);
  }

  .mode-selection-header p {
    font-size: 0.9rem;
  }

  .mode-buttons {
    gap: var(--spacing-sm);
  }

  .mode-btn {
    padding: var(--spacing-md);
    min-height: 70px;
    gap: var(--spacing-sm);
  }

  .mode-icon {
    font-size: 1.8rem;
  }

  .mode-content h4 {
    font-size: 1rem;
    margin-bottom: var(--spacing-xs);
  }

  .mode-content p {
    font-size: 0.85rem;
    line-height: 1.3;
  }

  .chat-input-container {
    position: fixed !important;
    bottom: 60px; /* Above tab navigation */
    left: 0;
    right: 0;
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    padding: var(--spacing-sm);
    z-index: 100;
    box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.1);
  }

  .chat-input-wrapper {
    gap: var(--spacing-sm);
    max-width: 100%;
  }

  #chat-input {
    border-radius: 1.5rem;
    padding: var(--spacing-sm) var(--spacing-md);
    min-height: 44px; /* Minimum touch target */
    font-size: 16px; /* Prevent zoom on iOS */
    border: 2px solid var(--border-color);
  }

  #chat-input:focus {
    border-color: var(--accent-orange);
    box-shadow: 0 0 0 2px rgba(255, 107, 0, 0.1);
  }

  .chat-send-btn {
    width: 44px; /* Minimum touch target */
    height: 44px;
    background: var(--accent-orange);
    border-radius: 50%;
    flex-shrink: 0;
  }

  .chat-send-btn:hover:not(:disabled) {
    background: var(--accent-orange);
    transform: scale(1.1);
  }

  /* Mobile Speech Bubbles - Much Wider */
  .chat-message {
    max-width: 97%; /* Much wider chat bubbles for better space usage */
    gap: var(--spacing-sm);
  }

  .chat-message.user {
    margin-left: 3%; /* Smaller left margin for user messages */
  }

  .chat-message.assistant {
    margin-right: 3%; /* Smaller right margin for assistant messages */
  }

  .message-content {
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: 1.25rem;
    line-height: 1.4;
    font-size: 0.9rem;
  }

  .chat-message.user .message-content {
    background: var(--accent-orange);
    color: white;
    border-bottom-right-radius: 0.5rem;
  }

  .chat-message.assistant .message-content {
    background: var(--bg-tertiary, #2a2a2a);
    border-bottom-left-radius: 0.5rem;
  }

  .message-avatar {
    width: 32px; /* Slightly smaller for mobile */
    height: 32px;
    flex-shrink: 0;
    font-size: 0.7rem;
  }

  .message-timestamp {
    font-size: 0.7rem;
    margin-top: var(--spacing-xs);
  }

  /* Mobile Chat Welcome */
  .chat-welcome {
    padding: var(--spacing-md);
    margin: 0;
    max-width: none;
  }

  .chat-welcome h3 {
    font-size: 1.2rem;
    margin-bottom: var(--spacing-sm);
  }

  .chat-welcome ul {
    margin: var(--spacing-sm) 0;
  }

  .chat-welcome li {
    font-size: 0.85rem;
    margin-bottom: var(--spacing-xs);
  }

  /* Mobile Questionnaire Improvements */
  .chat-questionnaire {
    padding: var(--spacing-md);
    max-width: none;
    height: 100%;
    display: flex;
    flex-direction: column;
    overflow-y: auto;
  }

  .questionnaire-header {
    text-align: center;
    margin-bottom: var(--spacing-lg);
    flex-shrink: 0;
  }

  .questionnaire-header h3 {
    font-size: 1.2rem;
  }

  .question-container {
    min-height: 150px;
    margin-bottom: var(--spacing-lg);
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
  }

  .question h4 {
    font-size: 1.1rem;
    margin-bottom: var(--spacing-sm);
  }

  .question-options {
    max-width: none;
    gap: var(--spacing-sm);
  }

  .question-option {
    padding: var(--spacing-md);
  }

  .question-input {
    max-width: none;
    padding: var(--spacing-md);
  }

  .questionnaire-controls {
    display: flex;
    flex-direction: row;
    gap: var(--spacing-md);
    margin-top: var(--spacing-md);
    flex-shrink: 0;
    padding-bottom: 80px; /* Account for fixed input area and tab nav */
  }

  .questionnaire-btn {
    min-width: 100px;
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: 0.9rem;
  }

  /* Progress bar and controls styling moved to main questionnaire block above */
  .progress-bar {
    width: 100%;
    height: 8px;
    background: var(--bg-tertiary, #2a2a2a);
    border-radius: 4px;
    margin: var(--spacing-md) 0;
    overflow: hidden;
  }

  .progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--accent-orange), var(--primary-color));
    border-radius: 4px;
    transition: width 0.3s ease;
  }

  .questionnaire-btn {
    flex: 1;
    min-width: 100px;
    padding: var(--spacing-md) var(--spacing-lg);
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius);
    background: var(--bg-secondary);
    color: var(--text-primary);
    font-size: 1rem;
    min-height: 50px; /* Good touch target */
    cursor: pointer;
    transition: all 0.3s ease;
  }

  .questionnaire-btn.primary {
    background: var(--accent-orange);
    border-color: var(--accent-orange);
    color: white;
  }

  .questionnaire-btn:hover:not(:disabled) {
    transform: translateY(-1px);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
  }

  .questionnaire-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none !important;
  }

  /* Typing indicator mobile */
  .typing-dots {
    padding: var(--spacing-md) var(--spacing-lg);
    align-self: flex-start;
    margin-right: 5%;
  }

  .typing-dots span {
    width: 10px;
    height: 10px;
  }
}

/* Ultra-small screens (320px) */
@media (max-width: 360px) {
  .day-tile {
    min-height: 60px;
    font-size: 0.8rem;
  }

  .calendar-day {
    min-height: 40px;
    font-size: 0.75rem;
  }

  .tab-btn span {
    font-size: 0.65rem;
  }

  .program-dropdown {
    min-width: 150px;
    font-size: 0.85rem;
  }

  /* Improve touch targets for dropdown items */
  .dropdown-program-item {
    min-height: 44px; /* iOS recommended touch target */
    padding: var(--spacing-md);
  }

  .dropdown-action-btn {
    min-width: 44px;
    min-height: 44px;
    font-size: 1.2rem;
  }
}

/* Landscape orientation adjustments */
@media (orientation: landscape) and (max-height: 500px) {
  .day-header {
    flex-direction: row;
    text-align: left;
  }

  .day-nav-controls {
    flex-direction: row;
  }

  .day-nav-controls .day-info {
    text-align: left;
  }

  .week-grid {
    grid-template-columns: repeat(7, 1fr);
  }

  .day-tile {
    min-height: 60px;
  }

  .calendar-day {
    min-height: 45px;
  }
}

/* PWA Standalone Mode Specific Styles */
@media all and (display-mode: standalone) {
  /* When running as installed PWA, we don't need to account for browser UI */

  #chat-view {
    height: 100vh;
    height: 100dvh; /* Use dynamic viewport height for better mobile support */
  }

  .chat-container {
    height: calc(100vh - 60px); /* Only account for tab navigation, no browser UI */
    height: calc(100dvh - 60px);
  }

  .chat-input-container {
    bottom: 60px; /* Only above tab navigation */
    padding-bottom: env(safe-area-inset-bottom, 0); /* Account for iPhone home indicator */
  }

  .questionnaire-controls {
    padding-bottom: calc(60px + env(safe-area-inset-bottom, 0)); /* Tab nav + safe area */
  }

  /* Adjust app content for PWA mode */
  .app-content {
    padding-bottom: calc(60px + env(safe-area-inset-bottom, 0)); /* Tab nav + safe area */
    min-height: calc(100vh - 60px - env(safe-area-inset-bottom, 0));
    min-height: calc(100dvh - 60px - env(safe-area-inset-bottom, 0));
  }

  /* Tab navigation adjustments for PWA */
  .tab-navigation {
    bottom: 0; /* Keep at bottom, safe area handled by padding */
    padding-bottom: env(safe-area-inset-bottom, 0); /* Add safe area as padding instead */
  }
}

/* iOS Safe Area Support for all modes */
@supports (padding: max(0px)) {
  .chat-input-container {
    padding-left: max(var(--spacing-sm), env(safe-area-inset-left));
    padding-right: max(var(--spacing-sm), env(safe-area-inset-right));
  }

  .tab-navigation {
    padding-left: env(safe-area-inset-left);
    padding-right: env(safe-area-inset-right);
  }
}

/* Mobile Modal Styles */
@media (max-width: 767px) {
  .exercise-info-modal {
    padding: var(--spacing-sm);
  }

  .modal-content {
    max-width: 100%;
    max-height: 90vh;
    margin: 0;
  }

  .modal-header {
    padding: var(--spacing-md);
  }

  .modal-title {
    font-size: 1.1rem;
    line-height: 1.3;
  }

  .modal-body {
    padding: var(--spacing-md);
    max-height: calc(90vh - 100px);
  }

  .info-button {
    width: 36px;
    height: 36px;
    min-width: 36px;
    min-height: 36px;
  }

  .info-button svg {
    width: 16px;
    height: 16px;
  }

  /* Improve readability on mobile */
  .section-content {
    font-size: 1rem;
    line-height: 1.7;
  }

  .section-title {
    font-size: 1.05rem;
  }
}

/* Ultra-small screens modal adjustments */
@media (max-width: 360px) {
  .exercise-info-modal {
    padding: var(--spacing-xs);
  }

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

  .modal-header {
    padding: var(--spacing-sm) var(--spacing-md);
  }

  .modal-body {
    padding: var(--spacing-sm) var(--spacing-md);
    max-height: calc(95vh - 80px);
  }

  .modal-title {
    font-size: 1rem;
  }
}