:root {
  --bg-primary: #f0f6fc;
  --bg-card: #ffffff;
  --bg-card-elevated: #e8f2fc;
  --bg-input: #f4f8fd;
  --border-subtle: #dbeafe;
  --border-strong: #bfdbfe;
  --text-primary: #0f172a;
  --text-secondary: #334155;
  --text-muted: #64748b;
  --link-color: #2563eb;
  --accent-primary: #2563eb;
  --accent-blue-soft: #eff6ff;
  --accent-blue-border: #bfdbfe;
  --accent-blue-text: #1d4ed8;
  --accent-amber-bg: #fffbeb;
  --accent-amber-border: #fde68a;
  --accent-amber-text: #92400e;
  --radius-lg: 10px;
  --radius-md: 7px;
  --radius-sm: 4px;
  --safe-top: env(safe-area-inset-top, 0px);
  --safe-bottom: env(safe-area-inset-bottom, 0px);
}

* {
  box-sizing: border-box;
  -webkit-tap-highlight-color: transparent;
}

html, body {
  margin: 0;
  padding: 0;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Inter", "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
  touch-action: manipulation;
  overscroll-behavior-y: none;
}

.app-shell {
  max-width: 480px;
  margin: 0 auto;
  min-height: 100dvh;
  padding-top: var(--safe-top);
  padding-bottom: calc(var(--safe-bottom) + 12px);
  display: flex;
  flex-direction: column;
}

/* Compact Light Top Navigation */
.top-nav {
  position: sticky;
  top: 0;
  z-index: 30;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 6px 12px;
  background: rgba(240, 246, 252, 0.94);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-subtle);
}

.brand-group {
  display: flex;
  align-items: center;
  gap: 8px;
}

.brand-title {
  margin: 0;
  font-size: 15px;
  font-weight: 700;
  letter-spacing: -0.3px;
  color: var(--text-primary);
}

.excluded-pill {
  font-size: 10.5px;
  font-weight: 500;
  background: var(--accent-blue-soft);
  color: var(--accent-blue-text);
  border: 1px solid var(--accent-blue-border);
  padding: 1px 7px;
  border-radius: 999px;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 6px;
}

.icon-btn {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  padding: 0;
  transition: all 0.15s ease;
}

.icon-btn:hover,
.icon-btn:active {
  border-color: var(--link-color);
  color: var(--link-color);
  background: var(--accent-blue-soft);
}

/* Main Content — Ultra-Compact Vertical Density */
.main-content {
  padding: 8px 10px 16px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.workout-section {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

/* Compact 2x2 Inputs Grid */
.inputs-grid-compact {
  padding: 6px 10px 4px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4px 12px;
}

.input-cell {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 6px;
  padding: 3px 0;
  border-bottom: 1px solid var(--border-subtle);
  min-width: 0;
}

.input-cell label {
  font-size: 11.5px;
  font-weight: 400;
  color: var(--text-secondary);
  flex-shrink: 0;
}

.select-wrapper {
  position: relative;
  flex: 1;
  min-width: 0;
}

.select-wrapper select {
  width: 100%;
  appearance: none;
  -webkit-appearance: none;
  background: transparent;
  color: var(--text-primary);
  border: none;
  padding: 2px 14px 2px 0;
  font-size: 12px;
  font-weight: 500;
  text-align: right;
  text-align-last: right;
  cursor: pointer;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.select-wrapper select:focus {
  outline: none;
}

.select-wrapper::after {
  content: "▾";
  position: absolute;
  right: 0;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  pointer-events: none;
  font-size: 10px;
}

/* Compact Generate Button */
.generate-btn-row {
  padding: 5px 10px 7px;
}

.generate-btn {
  width: 100%;
  background: linear-gradient(180deg, #3b82f6 0%, #2563eb 100%);
  color: #ffffff;
  border: none;
  border-radius: var(--radius-md);
  padding: 7px 12px;
  font-size: 12.5px;
  font-weight: 600;
  cursor: pointer;
  box-shadow: 0 1px 3px rgba(37, 99, 235, 0.25);
  transition: opacity 0.15s ease, transform 0.1s ease;
}

.generate-btn:active {
  opacity: 0.9;
  transform: scale(0.99);
}

/* Consolidated Single-Look Workout Header */
.workout-header-card {
  padding: 7px 10px;
}

.workout-consolidated-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 4px 10px;
}

/* Workout Type Hyperlink */
.workout-type-link {
  color: var(--link-color);
  text-decoration: underline;
  text-underline-offset: 2px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  line-height: 1.25;
}

.workout-type-link:hover,
.workout-type-link:active {
  color: #1d4ed8;
}

.workout-consolidated-meta {
  font-size: 11.5px;
  font-weight: 400;
  color: var(--text-secondary);
  line-height: 1.25;
}

/* Compact Rounds & Slots */
.rounds-container {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.round-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: 0 1px 2px rgba(37, 99, 235, 0.04);
}

.round-card.round-completed .slots-list {
  opacity: 0.5;
}

.round-header {
  padding: 4px 10px;
  background: #f0f7ff;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--border-subtle);
}

.round-header-left {
  display: flex;
  align-items: center;
  gap: 6px;
}

.round-title {
  font-size: 10.5px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: #1e40af;
}

/* Single-Line Combined Overload Warning Banner */
.overload-banner {
  background: var(--accent-amber-bg);
  border-bottom: 1px solid var(--accent-amber-border);
  padding: 4px 10px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 4px 8px;
  font-size: 11px;
  color: var(--accent-amber-text);
}

.overload-banner-text {
  line-height: 1.3;
  min-width: 0;
}

.overload-banner-text strong {
  font-weight: 600;
}

.overload-banner-actions {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  flex-shrink: 0;
}

.balance-now-btn {
  background: #f59e0b;
  color: #ffffff;
  border: none;
  border-radius: 4px;
  padding: 2px 7px;
  font-size: 10.5px;
  font-weight: 600;
  cursor: pointer;
}

.balance-options-btn {
  background: #ffffff;
  color: var(--accent-amber-text);
  border: 1px solid var(--accent-amber-border);
  border-radius: 4px;
  padding: 2px 6px;
  font-size: 10.5px;
  font-weight: 500;
  cursor: pointer;
}

/* Exercise Slots — Tight Single-Line Layout */
.slots-list {
  display: flex;
  flex-direction: column;
}

.exercise-slot {
  padding: 5px 10px;
  border-bottom: 1px solid var(--border-subtle);
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.exercise-slot:last-child {
  border-bottom: none;
}

.exercise-slot.completed .exercise-title-text {
  text-decoration: line-through;
  color: var(--text-muted);
}

/* Multi-option slide switcher tabs inside a slot */
.multi-option-tabs {
  display: flex;
  align-items: center;
  gap: 4px;
}

.multi-opt-pill {
  flex: 1;
  background: var(--accent-blue-soft);
  border: 1px solid var(--border-strong);
  color: var(--accent-blue-text);
  border-radius: 4px;
  padding: 2px 6px;
  font-size: 10.5px;
  font-weight: 500;
  cursor: pointer;
  text-align: center;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  transition: all 0.15s ease;
}

.multi-opt-pill.active {
  background: var(--accent-primary);
  border-color: var(--accent-primary);
  color: #ffffff;
  font-weight: 600;
}

.slot-main-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}

.slot-left {
  display: flex;
  align-items: center;
  gap: 7px;
  min-width: 0;
  flex: 1;
}

/* Format-Aware Small Checkboxes (Per-Set & Per-Round) */
.set-checkboxes {
  display: inline-flex;
  align-items: center;
  gap: 3px;
  flex-shrink: 0;
}

.set-check-box,
.round-check-box {
  width: 14px;
  height: 14px;
  border-radius: 3px;
  border: 1.5px solid var(--border-strong);
  background: #ffffff;
  color: transparent;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 9.5px;
  font-weight: 700;
  line-height: 1;
  padding: 0;
  cursor: pointer;
  flex-shrink: 0;
  transition: background 0.15s ease, border-color 0.15s ease;
}

.set-check-box.checked,
.round-check-box.checked {
  background: var(--accent-primary);
  border-color: var(--accent-primary);
  color: #ffffff;
}

.exercise-name-btn {
  background: none;
  border: none;
  padding: 0;
  color: var(--text-primary);
  text-align: left;
  cursor: pointer;
  display: inline-flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 0 6px;
  min-width: 0;
  line-height: 1.25;
}

.exercise-title-text {
  font-size: 13px;
  font-weight: 500;
  color: var(--text-primary);
}

.exercise-name-btn:hover .exercise-title-text {
  color: var(--link-color);
}

/* Minimized, Unbolded Muscle & Equipment Text (#4) */
.exercise-inline-meta {
  font-size: 10.5px;
  font-weight: 400;
  color: var(--text-muted);
  white-space: nowrap;
}

.slot-actions {
  display: flex;
  align-items: center;
  flex-shrink: 0;
}

.swap-trigger-btn {
  background: #f8fafc;
  color: var(--text-muted);
  border: 1px solid var(--border-subtle);
  border-radius: 5px;
  width: 22px;
  height: 20px;
  font-size: 11px;
  padding: 0;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: all 0.15s ease;
}

.swap-trigger-btn:hover,
.swap-trigger-btn:active {
  color: var(--link-color);
  border-color: var(--link-color);
  background: var(--accent-blue-soft);
}

/* Bottom Sheet Modals (Light Motif) */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.35);
  backdrop-filter: blur(2px);
  -webkit-backdrop-filter: blur(2px);
  z-index: 50;
}

.bottom-sheet {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  max-width: 480px;
  margin: 0 auto;
  max-height: 88dvh;
  background: #ffffff;
  border-top: 1px solid var(--border-strong);
  border-radius: 18px 18px 0 0;
  z-index: 60;
  display: flex;
  flex-direction: column;
  padding-bottom: calc(var(--safe-bottom) + 14px);
  box-shadow: 0 -8px 30px rgba(15, 23, 42, 0.14);
}

.sheet-handle {
  width: 34px;
  height: 4px;
  border-radius: 999px;
  background: var(--border-strong);
  margin: 8px auto 2px;
  flex-shrink: 0;
}

.sheet-header {
  padding: 6px 16px 10px;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
  border-bottom: 1px solid var(--border-subtle);
}

.eyebrow-label {
  display: block;
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.6px;
  color: var(--text-muted);
  text-transform: uppercase;
}

.warning-eyebrow {
  color: var(--accent-amber-text);
}

.sheet-title {
  margin: 2px 0 0;
  font-size: 16.5px;
  font-weight: 600;
  color: var(--text-primary);
}

.close-sheet-btn {
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: var(--bg-card-elevated);
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  font-size: 12px;
  cursor: pointer;
  flex-shrink: 0;
}

.sheet-content {
  padding: 12px 16px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.diagram-container {
  width: 100%;
  border-radius: 10px;
  overflow: hidden;
  background: #090d16;
  border: 1px solid var(--border-subtle);
}

.exercise-diagram-img {
  display: block;
  width: 100%;
  height: auto;
}

.badge-row {
  display: flex;
  flex-wrap: wrap;
  gap: 5px;
}

.mini-tag {
  font-size: 11px;
  font-weight: 400;
  padding: 2px 7px;
  border-radius: 5px;
  background: var(--bg-card-elevated);
  color: var(--text-secondary);
}

.mini-tag.pri-muscle {
  background: #fff7ed;
  color: #c2410c;
  border: 1px solid #ffedd5;
}

.mini-tag.sec-muscle {
  background: #f0f9ff;
  color: #0369a1;
  border: 1px solid #e0f2fe;
}

.workout-meta-pills {
  font-size: 12.5px;
  color: var(--text-secondary);
}

.modal-lead {
  margin: 0;
  font-size: 13px;
  line-height: 1.45;
  color: var(--text-secondary);
}

.modal-section h3 {
  margin: 0 0 6px;
  font-size: 11.5px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.4px;
  color: var(--text-muted);
}

.steps-list {
  margin: 0;
  padding-left: 18px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: 13px;
  line-height: 1.4;
  color: var(--text-primary);
}

.form-tip-box {
  background: var(--bg-primary);
  border: 1px solid var(--border-subtle);
  border-radius: 8px;
  padding: 8px 10px;
  font-size: 12.5px;
  line-height: 1.4;
  color: var(--text-secondary);
}

.form-tip-box strong {
  color: var(--text-primary);
}

.audit-note-box {
  background: var(--bg-primary);
  border: 1px solid var(--border-subtle);
  border-radius: 8px;
  padding: 8px 10px;
  font-size: 11.5px;
  line-height: 1.35;
  color: var(--text-muted);
}

.primary-action-btn,
.random-swap-btn {
  width: 100%;
  background: var(--accent-primary);
  color: #ffffff;
  border: none;
  border-radius: 8px;
  padding: 9px 14px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
}

/* Swap Exercise List & Controls */
.swap-controls {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.search-and-toggle {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.search-input {
  width: 100%;
  background: var(--bg-input);
  color: var(--text-primary);
  border: 1px solid var(--border-strong);
  border-radius: 7px;
  padding: 7px 10px;
  font-size: 13px;
}

.search-input:focus {
  outline: none;
  border-color: var(--link-color);
}

.segmented-control {
  display: flex;
  background: var(--bg-card-elevated);
  padding: 2px;
  border-radius: 7px;
  border: 1px solid var(--border-subtle);
}

.seg-btn {
  flex: 1;
  background: transparent;
  color: var(--text-secondary);
  border: none;
  border-radius: 5px;
  padding: 5px 8px;
  font-size: 11.5px;
  font-weight: 500;
  cursor: pointer;
}

.seg-btn.active {
  background: #ffffff;
  color: var(--text-primary);
  box-shadow: 0 1px 2px rgba(15, 23, 42, 0.08);
}

.swap-exercise-list {
  display: flex;
  flex-direction: column;
  gap: 5px;
  max-height: 44dvh;
  overflow-y: auto;
}

.swap-option-item {
  background: var(--bg-primary);
  border: 1px solid var(--border-subtle);
  border-radius: 7px;
  padding: 8px 10px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  cursor: pointer;
  text-align: left;
  color: var(--text-primary);
}

.swap-option-item:hover {
  border-color: var(--border-strong);
}

.swap-option-title {
  font-size: 13px;
  font-weight: 500;
  margin-bottom: 1px;
}

.swap-option-meta {
  font-size: 11px;
  font-weight: 400;
  color: var(--text-muted);
}

.swap-badge {
  font-size: 10.5px;
  font-weight: 400;
  color: var(--text-secondary);
  padding: 2px 6px;
  border-radius: 999px;
  border: 1px solid var(--border-subtle);
  background: #ffffff;
}

.swap-badge.balanced {
  color: #047857;
  background: #ecfdf5;
  border-color: #a7f3d0;
}

/* Settings Sheet */
.settings-block {
  background: var(--bg-primary);
  border: 1px solid var(--border-subtle);
  border-radius: 10px;
  padding: 10px 12px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.settings-block h3 {
  margin: 0;
  font-size: 13px;
  font-weight: 600;
}

.settings-help {
  margin: 0;
  font-size: 11.5px;
  color: var(--text-secondary);
  line-height: 1.35;
}

.text-link-btn {
  background: none;
  border: none;
  padding: 0;
  color: var(--link-color);
  font-size: 11.5px;
  font-weight: 500;
  cursor: pointer;
  text-decoration: underline;
}

.secondary-pill-btn {
  background: #ffffff;
  color: var(--text-primary);
  border: 1px solid var(--border-strong);
  border-radius: 7px;
  padding: 6px 10px;
  font-size: 12px;
  font-weight: 500;
  cursor: pointer;
  white-space: nowrap;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.swap-slot-options-box {
  background: var(--accent-blue-soft);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 8px 10px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.swap-slot-options-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.swap-slot-options-title {
  font-size: 11px;
  font-weight: 700;
  color: var(--accent-blue-text);
  text-transform: uppercase;
  letter-spacing: 0.4px;
}

.swap-slot-options-pills {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}

.swap-slot-pill {
  flex: 1;
  min-width: 100px;
  background: #ffffff;
  border: 1px solid var(--border-strong);
  color: var(--text-primary);
  border-radius: 5px;
  padding: 5px 8px;
  font-size: 11.5px;
  font-weight: 500;
  cursor: pointer;
  text-align: left;
  transition: all 0.15s ease;
}

.swap-slot-pill:hover {
  border-color: var(--link-color);
}

.swap-slot-pill.active {
  background: var(--accent-primary);
  border-color: var(--accent-primary);
  color: #ffffff;
  font-weight: 600;
}

.exclusion-header-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.exclusion-checklist {
  max-height: 200px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 3px;
}

.exclusion-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 5px 8px;
  border-radius: 6px;
  background: #ffffff;
  border: 1px solid var(--border-subtle);
  font-size: 12.5px;
  cursor: pointer;
}

.exclusion-row.is-excluded {
  opacity: 0.5;
}

.full-width-link {
  width: 100%;
}

/* Toast */
.toast {
  position: fixed;
  bottom: calc(var(--safe-bottom) + 16px);
  left: 50%;
  transform: translateX(-50%);
  background: var(--text-primary);
  color: #ffffff;
  font-size: 12px;
  font-weight: 500;
  padding: 6px 14px;
  border-radius: 999px;
  z-index: 80;
  box-shadow: 0 4px 12px rgba(15, 23, 42, 0.2);
}

[hidden] {
  display: none !important;
}