/* ============================================
   Training App - Fitness Theme
   Modern, polished design system
   ============================================ */

:root {
  /* Typography scale - iOS inspired */
  --f7-font-family: -apple-system, BlinkMacSystemFont, 'SF Pro Text', 'Segoe UI', Roboto, sans-serif;

  /* Large titles */
  --text-hero: 600 22px/28px var(--f7-font-family);
  --text-hero-tight: 600 20px/24px var(--f7-font-family);

  /* Exercise names */
  --text-exercise-title: 600 17px/22px var(--f7-font-family);

  /* Metadata (sets/reps) */
  --text-metadata: 500 15px/20px var(--f7-font-family);
  --text-metadata-secondary: 400 13px/18px var(--f7-font-family);

  /* Small labels */
  --text-label: 600 11px/16px var(--f7-font-family);

  /* Body text */
  --text-body: 400 15px/20px var(--f7-font-family);
  --text-body-secondary: 400 13px/18px var(--f7-font-family);

  /* Primary brand - energetic, motivating */
  --color-primary: #3B82F6;
  --color-primary-dark: #2563EB;
  --color-primary-light: #DBEAFE;
  --color-primary-surface: #EFF6FF;

  /* Success - completion, achievements */
  --color-success: #10B981;
  --color-success-dark: #059669;
  --color-success-light: #D1FAE5;
  --color-success-surface: #ECFDF5;

  /* Warning - attention, coach notes */
  --color-warning: #F59E0B;
  --color-warning-dark: #D97706;
  --color-warning-light: #FEF3C7;
  --color-warning-surface: #FFFBEB;

  /* Danger - destructive actions */
  --color-danger: #EF4444;
  --color-danger-dark: #DC2626;
  --color-danger-light: #FEE2E2;

  /* Neutral - backgrounds, text */
  --color-neutral-50: #F9FAFB;
  --color-neutral-100: #F3F4F6;
  --color-neutral-200: #E5E7EB;
  --color-neutral-300: #D1D5DB;
  --color-neutral-400: #9CA3AF;
  --color-neutral-500: #6B7280;
  --color-neutral-600: #4B5563;
  --color-neutral-700: #374151;
  --color-neutral-800: #1F2937;
  --color-neutral-900: #111827;

  /* Surfaces */
  --surface-primary: #FFFFFF;
  --surface-secondary: #F9FAFB;

  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);

  /* Framework7 overrides */
  --f7-theme-color: #3B82F6;
  --f7-theme-color-rgb: 59, 130, 246;
  --f7-theme-color-shade: #2563EB;
  --f7-theme-color-tint: #60A5FA;
  --f7-safe-area-top: env(safe-area-inset-top);
  --f7-safe-area-bottom: env(safe-area-inset-bottom);
}

/* Page background */
.page-content {
  background-color: var(--surface-secondary) !important;
}

/* ============================================
   Exercise Cards
   ============================================ */

.exercise-card {
  background: var(--surface-primary);
  border-radius: 16px;
  padding: 16px;
  margin: 0 16px 12px;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-neutral-100);
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.exercise-card:active {
  transform: scale(0.99);
}

/* Exercise Header */
.exercise-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 12px;
  margin-bottom: 12px;
}

.exercise-header-left {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  flex: 1;
  min-width: 0;
}

.exercise-num {
  width: 28px;
  height: 28px;
  border-radius: 8px;
  background: var(--color-primary);
  color: white;
  font-size: 13px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.exercise-title {
  font: var(--text-exercise-title);
  color: var(--color-neutral-900);
  margin: 0;
  flex: 1;
  min-width: 0;
}

.exercise-header-actions {
  display: flex;
  gap: 4px;
  flex-shrink: 0;
}

/* Text Buttons */
.text-btn {
  background: none;
  border: none;
  padding: 6px 10px;
  font-size: 13px;
  font-weight: 500;
  color: var(--color-primary);
  cursor: pointer;
  border-radius: 6px;
  transition: background 0.15s;
}

.text-btn:active {
  background: var(--color-primary-light);
}

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

.text-btn.danger:active {
  background: var(--color-danger-light);
}

.text-btn.small {
  font-size: 11px;
  padding: 4px 8px;
}

/* Icon Buttons */
.icon-btn {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  border: none;
  background: var(--color-neutral-100);
  color: var(--color-neutral-600);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.15s;
}

.icon-btn i {
  font-size: 16px;
}

.icon-btn:active {
  transform: scale(0.95);
  background: var(--color-neutral-200);
}

.icon-btn.danger {
  color: var(--color-danger);
}

.icon-btn.danger:active {
  background: var(--color-danger-light);
}

html.dark-mode .icon-btn {
  background: var(--color-neutral-100);
  color: var(--color-neutral-500);
}

html.dark-mode .icon-btn:active {
  background: var(--color-neutral-200);
}

html.dark-mode .icon-btn.danger {
  color: #F87171;
}

/* Video Wrap */
.exercise-video-wrap {
  border-radius: 12px;
  overflow: hidden;
  margin-bottom: 12px;
}

.exercise-video-wrap video {
  width: 100%;
  display: block;
}

/* Exercise Meta Tags */
.exercise-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 10px;
}

.meta-tag {
  padding: 5px 10px;
  background: var(--color-neutral-100);
  border-radius: 6px;
  font-size: 13px;
  font-weight: 500;
  color: var(--color-neutral-700);
}

/* Last Log Display */
.last-log {
  background: var(--color-success-surface);
  border: 1px solid var(--color-success-light);
  border-radius: 10px;
  padding: 10px 12px;
  margin-bottom: 12px;
}

.last-log-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 6px;
}

.last-log-date {
  font-size: 11px;
  font-weight: 500;
  color: var(--color-success-dark);
}

.last-log-sets {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.log-set {
  font-size: 13px;
  font-weight: 600;
  color: var(--color-success-dark);
}

.log-set:not(:last-child)::after {
  content: '·';
  margin-left: 6px;
  color: var(--color-success);
}

.last-log-notes {
  margin: 6px 0 0;
  font-size: 12px;
  font-style: italic;
  color: var(--color-success-dark);
}

/* Log Button */
.btn-log {
  width: 100%;
  height: 48px;
  border-radius: 12px;
  border: none;
  background: var(--color-primary);
  color: white;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.15s;
}

.btn-log:active {
  transform: scale(0.98);
  background: var(--color-primary-dark);
}

.btn-log.logged {
  background: var(--color-neutral-100);
  color: var(--color-neutral-700);
}

.btn-log.logged:active {
  background: var(--color-neutral-200);
}

/* Dark mode */
html.dark-mode .exercise-title {
  color: #FFFFFF;
}

html.dark-mode .text-btn {
  color: var(--color-primary);
}

html.dark-mode .text-btn:active {
  background: rgba(59, 130, 246, 0.15);
}

html.dark-mode .text-btn.danger {
  color: #F87171;
}

html.dark-mode .text-btn.danger:active {
  background: rgba(248, 113, 113, 0.15);
}

html.dark-mode .meta-tag {
  background: var(--color-neutral-100);
  color: var(--color-neutral-700);
}

html.dark-mode .last-log {
  background: rgba(16, 185, 129, 0.12);
  border-color: rgba(16, 185, 129, 0.25);
}

html.dark-mode .last-log-date,
html.dark-mode .log-set,
html.dark-mode .last-log-notes {
  color: #34D399;
}

html.dark-mode .btn-log.logged {
  background: var(--color-neutral-100);
  color: #FFFFFF;
}

/* Card edit button (library) - keep for library page */
.card-edit-btn {
  position: absolute;
  top: 12px;
  right: 12px;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(8px);
  border: none;
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  z-index: 10;
  transition: background 0.2s, transform 0.15s;
}

.card-edit-btn:hover {
  background: rgba(0, 0, 0, 0.7);
}

.card-edit-btn:active {
  transform: scale(0.9);
}

.card-edit-btn i {
  font-size: 16px;
}

/* Video container */
.exercise-video-container {
  position: relative;
  width: 100%;
  aspect-ratio: 16/9;
  border-radius: 12px;
  overflow: hidden;
  background: linear-gradient(135deg, #1F2937 0%, #374151 100%);
  margin-bottom: 14px;
}

.exercise-video {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.exercise-video-placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--color-neutral-100), var(--color-neutral-200));
}

.exercise-video-placeholder span {
  font-size: 48px;
  font-weight: 700;
  color: var(--color-neutral-300);
}

/* Number badge - bottom right to avoid video controls */
.number-badge {
  position: absolute;
  bottom: 10px;
  right: 10px;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(8px);
  color: white;
  padding: 5px 11px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.03em;
  z-index: 5;
}

/* Result badge - bottom left to avoid fullscreen button */
.result-badge {
  position: absolute;
  bottom: 10px;
  left: 10px;
  background: var(--color-success);
  color: white;
  padding: 5px 10px;
  border-radius: 20px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  box-shadow: 0 2px 8px rgba(16, 185, 129, 0.4);
  z-index: 5;
}

/* Exercise info */
.exercise-name {
  font: var(--text-exercise-title);
  letter-spacing: -0.02em;
  color: var(--color-neutral-900);
  margin: 0 0 10px;
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

/* Week-specific badge */
.week-badge {
  font-size: 10px;
  font-weight: 700;
  padding: 3px 7px;
  border-radius: 6px;
  background: var(--color-primary-light);
  color: var(--color-primary-dark);
  text-transform: uppercase;
  letter-spacing: 0.03em;
  flex-shrink: 0;
}

html.dark-mode .week-badge {
  background: rgba(59, 130, 246, 0.2);
  color: var(--color-primary);
}

/* Prescription display */
.exercise-prescription {
  display: flex;
  gap: 20px;
  padding: 12px 14px;
  background: var(--surface-secondary);
  border-radius: 10px;
  margin-bottom: 12px;
}

.prescription-item {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.prescription-label {
  font: var(--text-label);
  letter-spacing: 0.03em;
  text-transform: uppercase;
  color: var(--color-neutral-500);
}

.prescription-value {
  font: var(--text-metadata);
  font-weight: 600;
  color: var(--color-neutral-900);
  font-feature-settings: 'tnum';
}

/* Instructions */
.exercise-instructions {
  font: var(--text-body-secondary);
  color: var(--color-neutral-600);
  margin: 0 0 12px;
  line-height: 1.5;
}
.exercise-instructions ul {
  margin: 6px 0;
  padding-left: 20px;
}
.exercise-instructions li {
  margin-bottom: 2px;
}
.exercise-instructions strong {
  color: var(--color-neutral-800);
}

/* Format toolbar */
.format-toolbar {
  display: flex;
  gap: 8px;
  margin-bottom: 8px;
}
.format-toolbar button {
  background: var(--color-neutral-100);
  border: 1px solid var(--color-neutral-200);
  border-radius: 20px;
  padding: 0 16px;
  min-height: 36px;
  font-size: 15px;
  color: var(--color-neutral-700);
  cursor: pointer;
  line-height: 1;
  -webkit-tap-highlight-color: transparent;
  transition: background 0.15s, border-color 0.15s;
}
.format-toolbar button:active {
  background: var(--color-neutral-200);
  border-color: var(--color-neutral-300);
}

/* Instructions preview */
.instructions-preview {
  background: var(--color-neutral-50);
  border: 1px solid var(--color-neutral-150, var(--color-neutral-200));
  border-radius: 12px;
  padding: 12px 16px;
  margin-top: 8px;
  font-size: 15px;
  line-height: 1.5;
  color: var(--color-neutral-700);
  min-height: 24px;
}
.instructions-preview:empty {
  display: none;
}
.instructions-preview ul {
  margin: 6px 0;
  padding-left: 20px;
}
.instructions-preview li {
  margin-bottom: 2px;
}
.instructions-preview strong {
  color: var(--color-neutral-800);
}
.instructions-preview-label {
  font-size: 12px;
  font-weight: 600;
  color: var(--color-neutral-400);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-top: 10px;
  margin-bottom: 0;
}

/* Result display */
.result-display {
  background: var(--color-success-surface);
  border: 1px solid var(--color-success-light);
  border-radius: 12px;
  padding: 12px 14px;
  margin-bottom: 12px;
}

.result-values {
  display: flex;
  gap: 20px;
}

.result-item {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.result-label {
  font: var(--text-label);
  letter-spacing: 0.03em;
  text-transform: uppercase;
  color: var(--color-success-dark);
}

.result-value {
  font: var(--text-metadata);
  font-weight: 600;
  color: var(--color-success-dark);
  font-feature-settings: 'tnum';
}

.result-notes {
  font: var(--text-body-secondary);
  font-style: italic;
  color: var(--color-success-dark);
  margin: 10px 0 0;
  padding-left: 12px;
  border-left: 2px solid var(--color-success);
}

/* Action button */
.exercise-action-btn {
  width: 100%;
  height: 48px;
  border-radius: 12px;
  font-weight: 600;
  font-size: 15px;
  letter-spacing: -0.01em;
  border: none;
  transition: all 0.15s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
}

.exercise-action-btn.primary {
  background: var(--color-primary);
  color: white;
  box-shadow: 0 2px 8px rgba(59, 130, 246, 0.3);
}

.exercise-action-btn.primary:active {
  background: var(--color-primary-dark);
  transform: scale(0.98);
}

.exercise-action-btn.secondary {
  background: var(--color-neutral-100);
  color: var(--color-neutral-700);
}

.exercise-action-btn.secondary:active {
  background: var(--color-neutral-200);
  transform: scale(0.98);
}

/* ============================================
   Day Cards (Plan View)
   ============================================ */

.day-card {
  background: var(--surface-primary);
  border-radius: 16px;
  padding: 16px 18px;
  margin: 0 16px 12px;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-neutral-100);
  position: relative;
  overflow: hidden;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
  display: flex;
  align-items: center;
  gap: 14px;
  text-decoration: none;
}

.day-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: var(--day-color, var(--color-primary));
  transition: width 0.15s ease;
}

.day-card:active {
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.day-card:active::before {
  width: 6px;
}

/* Day icon */
.day-icon {
  width: 52px;
  height: 52px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 26px;
  flex-shrink: 0;
  position: relative;
}

.day-icon.pending {
  background: var(--color-neutral-50);
  border: 2px solid var(--color-neutral-200);
}

.day-icon.complete {
  background: var(--color-success-surface);
  border: 2px solid var(--color-success-light);
}

.day-icon.complete::after {
  content: '';
  position: absolute;
  bottom: -2px;
  right: -2px;
  width: 18px;
  height: 18px;
  background: var(--color-success);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

/* Day info */
.day-info {
  flex: 1;
  min-width: 0;
}

.day-label {
  font: var(--text-label);
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--color-neutral-500);
  margin-bottom: 3px;
}

.day-name {
  font: var(--text-exercise-title);
  letter-spacing: -0.02em;
  color: var(--color-neutral-900);
  margin: 0 0 4px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.day-meta {
  font: var(--text-body-secondary);
  color: var(--color-neutral-500);
  margin: 0;
}

/* Day progress */
.day-progress {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 4px;
}

.day-progress-text {
  font: var(--text-label);
  color: var(--color-neutral-500);
  font-feature-settings: 'tnum';
}

.day-progress-bar {
  width: 56px;
  height: 6px;
  background: var(--color-neutral-100);
  border-radius: 3px;
  overflow: hidden;
}

.day-progress-fill {
  height: 100%;
  border-radius: 3px;
  transition: width 0.4s ease;
}

.day-progress-fill.complete {
  background: var(--color-success);
}

.day-progress-fill.in-progress {
  background: var(--color-primary);
}

/* ============================================
   Week Selector
   ============================================ */

.week-selector {
  padding: 14px 16px;
  background: var(--surface-primary);
  margin: 16px 16px 8px;
  border-radius: 14px;
  box-shadow: var(--shadow-sm);
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.week-selector::-webkit-scrollbar {
  display: none;
}

.week-buttons {
  display: flex;
  gap: 8px;
}

.week-btn {
  flex-shrink: 0;
  min-width: 72px;
  height: 40px;
  padding: 0 14px;
  border-radius: 10px;
  border: 2px solid var(--color-neutral-200);
  background: var(--surface-primary);
  color: var(--color-neutral-700);
  font-weight: 600;
  font-size: 14px;
  transition: all 0.15s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
}

.week-btn:active {
  transform: scale(0.96);
}

.week-btn.active {
  background: var(--color-primary);
  color: white;
  border-color: var(--color-primary);
  box-shadow: 0 2px 8px rgba(59, 130, 246, 0.3);
}

/* ============================================
   Trainer Notes
   ============================================ */

.trainer-notes-section {
  margin-top: 14px;
  padding-top: 14px;
  padding-bottom: 4px;
  border-top: 1px solid var(--color-neutral-200);
}

.trainer-notes-header {
  font: var(--text-label);
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--color-neutral-600);
  margin: 0 0 10px;
  display: flex;
  align-items: center;
  gap: 6px;
}

.trainer-note {
  background: var(--color-neutral-50);
  border: 1px solid var(--color-neutral-150, var(--color-neutral-200));
  border-radius: 10px;
  padding: 10px 14px;
  margin-bottom: 8px;
  display: flex;
  align-items: flex-start;
  gap: 10px;
  transition: opacity 0.2s;
}
.trainer-note.htmx-swapping {
  opacity: 0.4;
}

.trainer-note-body {
  flex: 1;
  min-width: 0;
}

.trainer-note-content {
  font: var(--text-body);
  color: var(--color-neutral-800);
  margin: 0 0 4px;
  line-height: 1.45;
}

.trainer-note-date {
  font: var(--text-label);
  color: var(--color-neutral-400);
}

.trainer-note-delete {
  flex-shrink: 0;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: none;
  border: none;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-neutral-400);
  font-size: 18px;
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
  transition: background 0.15s, color 0.15s;
  margin-top: -2px;
  text-decoration: none;
}

.trainer-note-delete:active {
  background: var(--color-neutral-100);
  color: var(--color-danger);
}

/* Trainer notes form */
.trainer-notes-form {
  margin-top: 10px;
}
.trainer-notes-form textarea.form-textarea {
  min-height: 80px !important;
  margin-bottom: 10px !important;
}
.trainer-notes-form .btn {
  width: 100%;
  height: 44px;
}
.trainer-notes-form .note-spinner {
  display: none;
}
.trainer-notes-form.htmx-request .note-spinner {
  display: inline-flex;
  animation: btn-spin 0.8s linear infinite;
}
.trainer-notes-form.htmx-request .note-label {
  display: none;
}

/* ============================================
   Sheet Modals
   ============================================ */

/* Sheet modals - use calc to leave space for iOS status bar */
.sheet-modal {
  /* Leave 15% + safe area at top to never overlap browser chrome */
  height: calc(85vh - env(safe-area-inset-top, 0px)) !important;
  height: calc(85vh - constant(safe-area-inset-top, 0px)) !important;
  max-height: calc(85vh - env(safe-area-inset-top, 0px)) !important;
}

.sheet-modal .sheet-modal-inner {
  border-radius: 20px 20px 0 0 !important;
  background: var(--surface-secondary);
  height: 100% !important;
  overflow-y: auto;
  /* Sticky header area with safe padding */
  padding-top: 8px;
}

/* Drag handle indicator - enlarged for better gesture target */
.sheet-modal .sheet-modal-inner::before {
  content: '';
  display: block;
  width: 48px;
  height: 5px;
  background: var(--color-neutral-300);
  border-radius: 3px;
  margin: 12px auto 4px;
  flex-shrink: 0;
  cursor: grab;
}

.sheet-modal .page-content {
  padding-bottom: calc(var(--f7-safe-area-bottom) + 24px);
  height: 100%;
  overflow-y: auto;
}

/* Sheet header with close button */
.sheet-header {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 8px 16px 16px;
  position: sticky;
  top: 0;
  background: var(--surface-secondary);
  z-index: 10;
}

.sheet-close-btn {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--color-neutral-100);
  border: none;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-neutral-600);
  flex-shrink: 0;
  cursor: pointer;
  transition: all 0.15s;
}

.sheet-close-btn:active {
  background: var(--color-neutral-200);
  transform: scale(0.9);
}

.sheet-close-btn i {
  font-size: 18px;
}

.sheet-title {
  font: var(--text-hero);
  letter-spacing: -0.02em;
  color: var(--color-neutral-900);
  margin: 0;
  flex: 1;
}

html.dark-mode .sheet-close-btn {
  background: var(--color-neutral-100);
  color: var(--color-neutral-700);
}

html.dark-mode .sheet-close-btn:active {
  background: var(--color-neutral-200);
}

.form-section {
  background: var(--surface-primary);
  border-radius: 14px;
  padding: 16px;
  margin: 0 16px 12px;
  box-shadow: var(--shadow-sm);
}

.form-field {
  margin-bottom: 16px;
}

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

.form-label {
  font: var(--text-label);
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--color-neutral-600);
  margin-bottom: 4px;
  display: block;
}

.form-hint {
  font-size: 12px;
  color: var(--color-neutral-500);
  margin: 0 0 8px;
  line-height: 1.4;
}

/* Quick select chips */
.quick-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.chip {
  height: 40px;
  min-width: 44px;
  padding: 0 14px;
  border-radius: 20px;
  border: 1.5px solid var(--color-neutral-200);
  background: var(--surface-primary);
  color: var(--color-neutral-700);
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.15s;
  white-space: nowrap;
}

.chip:active {
  transform: scale(0.95);
  background: var(--color-primary-light);
  border-color: var(--color-primary);
  color: var(--color-primary-dark);
}

.week-chip.selected {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: #fff;
}

html.dark-mode .chip {
  background: var(--color-neutral-50);
  border-color: var(--color-neutral-200);
  color: var(--color-neutral-700);
}

html.dark-mode .chip:active {
  background: rgba(59, 130, 246, 0.2);
  border-color: var(--color-primary);
  color: var(--color-primary);
}

html.dark-mode .form-hint {
  color: var(--color-neutral-500);
}

/* Collapsible preset sections */
.presets-accordion {
  margin-top: 12px;
  border: 1px solid var(--color-neutral-200);
  border-radius: 12px;
  overflow: hidden;
}

.preset-category-btn {
  width: 100%;
  height: 48px;
  padding: 0 16px;
  border: none;
  border-bottom: 1px solid var(--color-neutral-200);
  background: var(--surface-primary);
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 15px;
  font-weight: 500;
  color: var(--color-neutral-800);
  text-align: left;
  cursor: pointer;
  transition: background 0.15s;
}

.preset-category-btn:last-of-type {
  border-bottom: none;
}

.preset-category-btn:active {
  background: var(--color-neutral-50);
}

.preset-category-btn .preset-icon {
  margin-right: 8px;
}

.preset-category-btn .preset-chevron {
  font-size: 14px;
  color: var(--color-neutral-400);
  transition: transform 0.2s;
}

.preset-category-btn.expanded .preset-chevron {
  transform: rotate(180deg);
}

.preset-chips-group {
  padding: 12px 16px;
  background: var(--color-neutral-50);
  border-top: 1px solid var(--color-neutral-200);
  display: none;
}

.preset-chips-group.show {
  display: block;
}

html.dark-mode .presets-accordion {
  border-color: var(--color-neutral-200);
}

html.dark-mode .preset-category-btn {
  background: var(--surface-primary);
  border-color: var(--color-neutral-200);
  color: var(--color-neutral-800);
}

html.dark-mode .preset-category-btn:active {
  background: var(--color-neutral-100);
}

html.dark-mode .preset-chips-group {
  background: var(--color-neutral-100);
  border-color: var(--color-neutral-200);
}

.form-input,
input.form-input,
select.form-input {
  width: 100% !important;
  height: 50px !important;
  padding: 0 16px !important;
  border: 2px solid var(--color-neutral-200) !important;
  border-radius: 12px !important;
  font-size: 16px !important;
  color: var(--color-neutral-900) !important;
  background: var(--surface-primary) !important;
  transition: border-color 0.15s, box-shadow 0.15s;
  box-sizing: border-box !important;
  -webkit-appearance: none !important;
  appearance: none !important;
  margin: 0 !important;
}

.form-input:focus,
input.form-input:focus,
select.form-input:focus {
  outline: none !important;
  border-color: var(--color-primary) !important;
  box-shadow: 0 0 0 3px var(--color-primary-light) !important;
}

.form-textarea,
textarea.form-textarea {
  width: 100% !important;
  min-height: 150px !important;
  padding: 14px 16px !important;
  border: 2px solid var(--color-neutral-200) !important;
  border-radius: 12px !important;
  font-size: 16px !important;
  line-height: 1.5 !important;
  color: var(--color-neutral-900) !important;
  background: var(--surface-primary) !important;
  transition: border-color 0.15s, box-shadow 0.15s;
  field-sizing: content;
  resize: vertical;
  box-sizing: border-box !important;
  -webkit-appearance: none !important;
  appearance: none !important;
  margin: 0 !important;
}

.form-textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-light);
}

/* Select styling */
select.form-input {
  padding-right: 40px;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%236B7280' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
  cursor: pointer;
}

/* Button group */
.button-row {
  display: flex;
  gap: 10px;
  padding: 8px 16px 0;
}

.btn {
  flex: 1;
  height: 50px;
  border-radius: 12px;
  font-weight: 600;
  font-size: 16px;
  letter-spacing: -0.02em;
  border: none;
  transition: all 0.15s ease;
}

.btn-secondary {
  background: var(--color-neutral-100);
  color: var(--color-neutral-900);
}

.btn-secondary:active {
  background: var(--color-neutral-200);
  transform: scale(0.98);
}

.btn-primary {
  background: var(--color-primary);
  color: white;
  box-shadow: 0 4px 12px rgba(59, 130, 246, 0.3);
}

.btn-primary:active {
  background: var(--color-primary-dark);
  transform: scale(0.98);
}

.btn-danger {
  background: #EF4444;
  color: white;
  box-shadow: 0 4px 12px rgba(239, 68, 68, 0.3);
}

.btn-danger:active {
  background: #DC2626;
  transform: scale(0.98);
}

/* ============================================
   Navbar
   ============================================ */

.navbar {
  background: var(--surface-primary) !important;
}

.navbar .title {
  font-weight: 600 !important;
  letter-spacing: -0.02em !important;
}

.navbar-bg {
  background: var(--surface-primary) !important;
}

/* iOS safe area for navbar right side */
.navbar-inner .right {
  padding-right: max(8px, env(safe-area-inset-right, 8px));
  display: flex;
  align-items: center;
  gap: 4px;
}

.navbar-inner .left {
  padding-left: max(8px, env(safe-area-inset-left, 8px));
}

/* Navbar icons - ensure visibility */
.navbar-inner .link i.icon,
.navbar-inner .link .f7-icons {
  font-size: 22px !important;
  color: var(--f7-theme-color) !important;
}

.navbar-inner .theme-toggle {
  font-size: 20px;
  background: none;
  border: none;
  padding: 8px;
  cursor: pointer;
}

.navbar-inner .badge {
  font-size: 12px;
  font-weight: 600;
  padding: 4px 8px;
  border-radius: 12px;
  background: var(--color-neutral-200);
  color: var(--color-neutral-700);
}

.navbar-inner .badge.color-green {
  background: var(--color-success-light);
  color: var(--color-success-dark);
}

/* ============================================
   Swipeout Actions
   ============================================ */

.swipeout-actions-right {
  background: transparent;
}

.swipeout-actions-right a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 72px;
}

.swipeout-actions-right a.color-blue {
  background: var(--color-primary) !important;
}

.swipeout-actions-right a.swipeout-delete {
  background: #EF4444 !important;
}

/* ============================================
   Empty State
   ============================================ */

.empty-state {
  text-align: center;
  padding: 48px 24px;
}

.empty-state-icon {
  font-size: 56px;
  margin-bottom: 14px;
  opacity: 0.4;
}

.empty-state-title {
  font: var(--text-hero-tight);
  color: var(--color-neutral-900);
  margin: 0 0 6px;
}

.empty-state-text {
  font: var(--text-body);
  color: var(--color-neutral-500);
  margin: 0 0 20px;
}

/* ============================================
   Sheet Loading Placeholder
   ============================================ */

.sheet-loading {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 64px 24px;
  gap: 16px;
}

.sheet-loading .preloader {
  width: 36px;
  height: 36px;
}

.sheet-loading-text {
  font: var(--text-body);
  color: var(--color-neutral-500);
}

/* ============================================
   Button Loading States
   ============================================ */

.btn.loading,
.exercise-action-btn.loading {
  pointer-events: none;
  opacity: 0.7;
  position: relative;
}

.btn.loading::after,
.exercise-action-btn.loading::after {
  content: '';
  width: 18px;
  height: 18px;
  border: 2px solid transparent;
  border-top-color: currentColor;
  border-radius: 50%;
  animation: btn-spin 0.7s linear infinite;
  margin-left: 8px;
  display: inline-block;
  vertical-align: middle;
}

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

/* Link loading state */
a.loading {
  pointer-events: none;
  opacity: 0.5;
}

/* ============================================
   FAB
   ============================================ */

.fab {
  --f7-fab-size: 56px;
  box-shadow: 0 4px 14px rgba(59, 130, 246, 0.4) !important;
}

.fab a {
  background: var(--color-primary) !important;
}

/* ============================================
   iOS Safe Area
   ============================================ */

.ios .page-content {
  padding-bottom: calc(var(--f7-safe-area-bottom) + 20px);
}

/* ============================================
   Login Page
   ============================================ */

.login-screen-title {
  font: var(--text-hero) !important;
  margin-bottom: 8px !important;
}

.login-screen-content .list {
  margin: 24px 16px !important;
}

.login-screen-content .block {
  margin: 0 16px !important;
}

.login-screen-content .button-fill {
  height: 50px;
  border-radius: 12px;
  font-weight: 600;
  font-size: 16px;
}

/* ============================================
   Dark Mode (class-based toggle)
   ============================================ */

html.dark-mode {
  --surface-primary: #1C1C1E;
  --surface-secondary: #000000;
  --color-neutral-50: #2C2C2E;
  --color-neutral-100: #3A3A3C;
  --color-neutral-200: #48484A;
  --color-neutral-300: #636366;
  --color-neutral-400: #8E8E93;
  --color-neutral-500: #AEAEB2;
  --color-neutral-600: #C7C7CC;
  --color-neutral-700: #D1D1D6;
  --color-neutral-800: #E5E5EA;
  --color-neutral-900: #FFFFFF;
}

html.dark-mode .navbar,
html.dark-mode .navbar-bg {
  background: var(--surface-primary) !important;
}

html.dark-mode .navbar .title {
  color: #FFFFFF !important;
}

html.dark-mode .navbar-inner .link i.icon,
html.dark-mode .navbar-inner .link .f7-icons {
  color: var(--f7-theme-color) !important;
}

html.dark-mode .navbar-inner .link.back i.icon {
  color: var(--f7-theme-color) !important;
}

html.dark-mode .page-content {
  background: var(--surface-secondary) !important;
}

html.dark-mode .exercise-card,
html.dark-mode .day-card,
html.dark-mode .week-selector,
html.dark-mode .form-section {
  background: var(--surface-primary);
  border-color: var(--color-neutral-100);
}

html.dark-mode .sheet-modal .sheet-modal-inner {
  background: var(--surface-primary) !important;
}

html.dark-mode .sheet-modal {
  --f7-sheet-bg-color: var(--surface-primary);
}

html.dark-mode .sheet-title {
  background: var(--surface-primary);
}

html.dark-mode .sheet-header {
  background: var(--surface-primary);
}

html.dark-mode .page-content {
  background: var(--surface-secondary) !important;
}

/* Text colors in dark mode */
html.dark-mode .exercise-name,
html.dark-mode .day-name,
html.dark-mode .sheet-title,
html.dark-mode h1,
html.dark-mode h2,
html.dark-mode h3 {
  color: #FFFFFF !important;
}

html.dark-mode .day-label,
html.dark-mode .day-meta,
html.dark-mode .prescription-label,
html.dark-mode .result-label,
html.dark-mode .form-label,
html.dark-mode .trainer-notes-header,
html.dark-mode .day-progress-text {
  color: var(--color-neutral-500) !important;
}

html.dark-mode .prescription-value,
html.dark-mode .exercise-instructions {
  color: var(--color-neutral-700) !important;
}

html.dark-mode .form-input,
html.dark-mode .form-textarea {
  background: var(--color-neutral-50);
  border-color: var(--color-neutral-200);
  color: #FFFFFF;
}

html.dark-mode .form-input::placeholder,
html.dark-mode .form-textarea::placeholder {
  color: var(--color-neutral-400);
}

html.dark-mode .instructions-preview {
  background: var(--color-neutral-100);
  border-color: var(--color-neutral-200);
  color: var(--color-neutral-600);
}
html.dark-mode .instructions-preview strong {
  color: var(--color-neutral-500);
}
html.dark-mode .format-toolbar button {
  background: var(--color-neutral-100);
  border-color: var(--color-neutral-200);
  color: var(--color-neutral-500);
}

html.dark-mode .exercise-prescription {
  background: var(--color-neutral-50);
}

html.dark-mode .week-btn {
  background: var(--surface-primary);
  border-color: var(--color-neutral-200);
  color: var(--color-neutral-700);
}

html.dark-mode .week-btn.active {
  background: var(--color-primary);
  color: white;
  border-color: var(--color-primary);
}

html.dark-mode .btn-secondary {
  background: var(--color-neutral-100);
  color: #FFFFFF;
}

html.dark-mode .exercise-action-btn.secondary {
  background: var(--color-neutral-100);
  color: #FFFFFF;
}

html.dark-mode .block-title {
  color: var(--color-neutral-500) !important;
}

html.dark-mode .trainer-note {
  background: var(--color-neutral-100);
  border-color: var(--color-neutral-200);
}

html.dark-mode .trainer-note-content {
  color: var(--color-neutral-800) !important;
}

html.dark-mode .trainer-note-delete:active {
  background: var(--color-neutral-200);
}

html.dark-mode .empty-state-title {
  color: #FFFFFF;
}

html.dark-mode .empty-state-text {
  color: var(--color-neutral-500);
}

/* Result display in dark mode */
html.dark-mode .result-display {
  background: rgba(16, 185, 129, 0.15);
  border-color: rgba(16, 185, 129, 0.3);
}

html.dark-mode .result-value,
html.dark-mode .result-label {
  color: #34D399 !important;
}

html.dark-mode .result-notes {
  color: #34D399 !important;
  border-color: #34D399;
}

/* Day icon in dark mode */
html.dark-mode .day-icon.pending {
  background: var(--color-neutral-50);
  border-color: var(--color-neutral-200);
}

html.dark-mode .day-icon.complete {
  background: rgba(16, 185, 129, 0.15);
  border-color: rgba(16, 185, 129, 0.3);
}

/* Icon Picker */
.icon-picker {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.icon-option {
  width: 44px;
  height: 44px;
  border-radius: 10px;
  border: 2px solid var(--color-neutral-200);
  background: var(--surface-primary);
  font-size: 22px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.15s;
}

.icon-option:active {
  transform: scale(0.95);
}

.icon-option.selected {
  border-color: var(--color-primary);
  background: var(--color-primary-light);
}

html.dark-mode .icon-option {
  background: var(--color-neutral-50);
  border-color: var(--color-neutral-200);
}

html.dark-mode .icon-option.selected {
  border-color: var(--color-primary);
  background: rgba(59, 130, 246, 0.2);
}

/* Theme toggle button */
.theme-toggle {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--color-neutral-100);
  border: none;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: background 0.2s;
  font-size: 18px;
}

.theme-toggle:active {
  background: var(--color-neutral-200);
}

html.dark-mode .theme-toggle {
  background: var(--color-neutral-100);
}

/* Video upload area dark mode */
html.dark-mode #video-drop-zone,
html.dark-mode [id^="video-drop-zone"] {
  border-color: var(--color-neutral-300) !important;
  background: var(--color-neutral-50) !important;
}

html.dark-mode #video-drop-zone p,
html.dark-mode [id^="video-drop-zone"] p {
  color: var(--color-neutral-600) !important;
}

/* Copied video preview */
.copied-video-inner {
  background: var(--color-primary-surface);
  border: 2px solid var(--color-primary-light);
  border-radius: 12px;
  padding: 12px 14px;
  display: flex;
  align-items: center;
  gap: 12px;
}

.copied-video-icon {
  font-size: 24px;
  flex-shrink: 0;
}

.copied-video-text {
  flex: 1;
  min-width: 0;
}

.copied-video-title {
  margin: 0;
  font-weight: 600;
  font-size: 14px;
  color: var(--color-neutral-900);
}

.copied-video-subtitle {
  margin: 2px 0 0;
  font-size: 12px;
  color: var(--color-neutral-500);
}

.copied-video-remove {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--color-neutral-200);
  border: none;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  color: var(--color-neutral-600);
  cursor: pointer;
  flex-shrink: 0;
}

.copied-video-remove:active {
  background: var(--color-neutral-300);
}

html.dark-mode .copied-video-inner {
  background: rgba(59, 130, 246, 0.15);
  border-color: rgba(59, 130, 246, 0.3);
}

html.dark-mode .copied-video-title {
  color: #FFFFFF;
}

html.dark-mode .copied-video-subtitle {
  color: var(--color-neutral-500);
}

html.dark-mode .copied-video-remove {
  background: var(--color-neutral-200);
  color: var(--color-neutral-700);
}

/* Danger zone in dark mode */
html.dark-mode [style*="color: var(--color-danger)"],
html.dark-mode [style*="border: 1px solid var(--color-danger)"] {
  color: #F87171 !important;
  border-color: #F87171 !important;
}