/* ============================================================
   Iron Log — Dark Theme Stylesheet
   Mobile-first, one-handed gym use optimized
   ============================================================ */

/* ── Reset & Base ─────────────────────────────────────────── */
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  -webkit-tap-highlight-color: transparent;
}

:root {
  --bg: #121212;
  --bg-card: #1e1e1e;
  --bg-elevated: #2a2a2a;
  --bg-input: #2a2a2a;
  --primary: #007aff;
  --primary-dim: rgba(0, 122, 255, 0.15);
  --text: #f0f0f0;
  --text-muted: #8e8e93;
  --text-dim: #636366;
  --danger: #ff453a;
  --success: #30d158;
  --warning: #ffd60a;
  --border: #333;
  --radius: 14px;
  --radius-sm: 10px;
  --safe-top: env(safe-area-inset-top, 0px);
  --safe-bottom: env(safe-area-inset-bottom, 0px);
  --tab-height: 64px;
}

html {
  font-size: 16px;
  height: 100%;
  background: var(--bg);
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'Segoe UI', Roboto, Helvetica,
    Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100%;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

#app {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  min-height: 100dvh;
}

/* ── Header ───────────────────────────────────────────────── */
.header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: calc(var(--safe-top) + 12px) 20px 12px;
  background: var(--bg);
  position: sticky;
  top: 0;
  z-index: 100;
  border-bottom: 1px solid var(--border);
}

.header h1 {
  font-size: 1.35rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  flex: 1;
  text-align: center;
}

.header-spacer {
  width: 40px;
}

.btn-icon {
  width: 40px;
  height: 40px;
  border: none;
  background: var(--bg-elevated);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
  cursor: pointer;
  flex-shrink: 0;
  transition: transform 0.15s, background 0.15s;
}
.btn-icon:active {
  transform: scale(0.9);
  background: var(--primary-dim);
}
.btn-icon svg {
  width: 20px;
  height: 20px;
}
.btn-icon.danger {
  color: var(--danger);
}

.btn-back {
  width: 40px;
  height: 40px;
  border: none;
  background: none;
  color: var(--primary);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: transform 0.15s;
}
.btn-back:active {
  transform: scale(0.9);
}
.btn-back svg {
  width: 24px;
  height: 24px;
}

/* ── Main Content ─────────────────────────────────────────── */
.content {
  flex: 1;
  padding: 16px 16px calc(var(--safe-bottom) + 24px);
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
}

.content.has-tabs {
  padding-bottom: calc(var(--tab-height) + var(--safe-bottom) + 16px);
}

/* ── Tab Bar ──────────────────────────────────────────────── */
.tab-bar {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  height: calc(var(--tab-height) + var(--safe-bottom));
  padding-bottom: var(--safe-bottom);
  background: rgba(18, 18, 18, 0.92);
  -webkit-backdrop-filter: blur(20px);
  backdrop-filter: blur(20px);
  display: flex;
  align-items: center;
  justify-content: space-around;
  border-top: 1px solid var(--border);
  z-index: 200;
}

.tab-btn {
  flex: 1;
  border: none;
  background: none;
  color: var(--text-dim);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 3px;
  padding: 8px 0;
  cursor: pointer;
  transition: color 0.2s;
  font-size: 0.65rem;
  font-weight: 600;
  letter-spacing: 0.03em;
  text-transform: uppercase;
}
.tab-btn svg {
  width: 24px;
  height: 24px;
}
.tab-btn.active {
  color: var(--primary);
}

/* ── Search Bar ───────────────────────────────────────────── */
.search-bar {
  position: relative;
  margin-bottom: 12px;
}
.search-icon {
  position: absolute;
  left: 14px;
  top: 50%;
  transform: translateY(-50%);
  width: 18px;
  height: 18px;
  color: var(--text-dim);
  pointer-events: none;
}
.search-bar input {
  width: 100%;
  padding: 12px 16px 12px 42px;
  border: none;
  border-radius: var(--radius-sm);
  background: var(--bg-input);
  color: var(--text);
  font-size: 1rem;
  outline: none;
  transition: background 0.2s;
}
.search-bar input::placeholder {
  color: var(--text-dim);
}
.search-bar input:focus {
  background: var(--bg-elevated);
  box-shadow: 0 0 0 2px var(--primary-dim);
}

/* ── Filter Chips ─────────────────────────────────────────── */
.filter-row {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding-bottom: 12px;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
}
.filter-row::-webkit-scrollbar {
  display: none;
}

.filter-chip {
  flex-shrink: 0;
  padding: 8px 16px;
  border-radius: 20px;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text-muted);
  font-size: 0.85rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s;
  white-space: nowrap;
}
.filter-chip.active {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}
.filter-chip:active {
  transform: scale(0.95);
}

/* ── Exercise List ────────────────────────────────────────── */
.exercise-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.exercise-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 16px;
  background: var(--bg-card);
  border-radius: var(--radius-sm);
  transition: background 0.15s, transform 0.15s;
}
.exercise-item:active {
  background: var(--bg-elevated);
}

.ex-icon {
  font-size: 1.4rem;
  width: 36px;
  height: 36px;
  background: var(--bg-elevated);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.ex-info {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.ex-name {
  font-size: 0.95rem;
  font-weight: 600;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.ex-meta {
  font-size: 0.78rem;
  color: var(--text-muted);
}

.empty-row {
  text-align: center;
  padding: 24px;
  color: var(--text-dim);
  font-size: 0.9rem;
}

/* ── Routine Cards ────────────────────────────────────────── */
.routine-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.routine-card {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 18px 16px;
  background: var(--bg-card);
  border-radius: var(--radius);
  cursor: pointer;
  transition: background 0.15s, transform 0.15s;
  border: 1px solid var(--border);
}
.routine-card:active {
  background: var(--bg-elevated);
  transform: scale(0.985);
}

.routine-card-body {
  flex: 1;
  min-width: 0;
}
.routine-card-body h3 {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 4px;
}
.routine-meta {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-bottom: 8px;
}

.routine-tags {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}
.tag {
  padding: 3px 10px;
  border-radius: 12px;
  background: var(--primary-dim);
  color: var(--primary);
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.chevron {
  flex-shrink: 0;
  color: var(--text-dim);
}
.chevron svg {
  width: 20px;
  height: 20px;
}

/* ── Empty State ──────────────────────────────────────────── */
.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 80px 32px;
  gap: 12px;
}
.empty-icon {
  width: 64px;
  height: 64px;
  color: var(--text-dim);
  margin-bottom: 8px;
}
.empty-icon svg {
  width: 100%;
  height: 100%;
}
.empty-title {
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--text-muted);
}
.empty-sub {
  font-size: 0.85rem;
  color: var(--text-dim);
  max-width: 220px;
}

/* ── Forms ────────────────────────────────────────────────── */
.form {
  display: flex;
  flex-direction: column;
  gap: 20px;
  padding: 8px 0;
}

.form-label {
  display: flex;
  flex-direction: column;
  gap: 8px;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.form-input {
  width: 100%;
  padding: 14px 16px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--bg-input);
  color: var(--text);
  font-size: 1rem;
  outline: none;
  transition: border-color 0.2s, box-shadow 0.2s;
  -webkit-appearance: none;
  appearance: none;
}
.form-input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--primary-dim);
}
.form-input::placeholder {
  color: var(--text-dim);
}

select.form-input {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%238e8e93' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
  padding-right: 40px;
}

/* ── Buttons ──────────────────────────────────────────────── */
.btn-primary {
  padding: 16px 24px;
  border: none;
  border-radius: var(--radius-sm);
  background: var(--primary);
  color: #fff;
  font-size: 1rem;
  font-weight: 700;
  cursor: pointer;
  transition: transform 0.15s, opacity 0.15s;
  letter-spacing: -0.01em;
}
.btn-primary:active {
  transform: scale(0.97);
  opacity: 0.85;
}

.btn-full {
  width: 100%;
}

.btn-save {
  margin-top: 12px;
  margin-bottom: 32px;
}

/* ── Sticky save bar (routine editor) ─────────────────────── */
.sticky-save-bar {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 12px 16px calc(var(--safe-bottom) + 12px);
  background: rgba(18, 18, 18, 0.92);
  -webkit-backdrop-filter: blur(20px);
  backdrop-filter: blur(20px);
  border-top: 1px solid var(--border);
  z-index: 200;
}

#routineEditorMain {
  padding-bottom: calc(var(--safe-bottom) + 80px);
}

/* ── Routine Editor: Selected / Available ─────────────────── */
.routine-section {
  margin-top: 24px;
}

.section-title {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 22px;
  height: 22px;
  padding: 0 6px;
  border-radius: 11px;
  background: var(--primary);
  color: #fff;
  font-size: 0.7rem;
  font-weight: 700;
}

.selected-list .exercise-item {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
}

.drag-handle {
  width: 24px;
  height: 24px;
  color: var(--text-dim);
  flex-shrink: 0;
  cursor: grab;
  display: flex;
  align-items: center;
  justify-content: center;
}
.drag-handle svg {
  width: 18px;
  height: 18px;
}

.dragging {
  opacity: 0.5;
  background: var(--primary-dim) !important;
}

.btn-remove {
  width: 36px;
  height: 36px;
  border: none;
  background: rgba(255, 69, 58, 0.12);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--danger);
  cursor: pointer;
  flex-shrink: 0;
  transition: transform 0.15s, background 0.15s;
}
.btn-remove:active {
  transform: scale(0.85);
}
.btn-remove svg {
  width: 16px;
  height: 16px;
}

.btn-add-ex {
  width: 36px;
  height: 36px;
  border: none;
  background: var(--primary-dim);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
  cursor: pointer;
  flex-shrink: 0;
  transition: transform 0.15s, background 0.15s;
}
.btn-add-ex:active {
  transform: scale(0.85);
  background: var(--primary);
  color: #fff;
}
.btn-add-ex svg {
  width: 18px;
  height: 18px;
}

/* ── Animations ───────────────────────────────────────────── */
@keyframes shake {
  0%,
  100% {
    transform: translateX(0);
  }
  20% {
    transform: translateX(-8px);
  }
  40% {
    transform: translateX(8px);
  }
  60% {
    transform: translateX(-6px);
  }
  80% {
    transform: translateX(6px);
  }
}
.shake {
  animation: shake 0.4s ease;
}

/* ── Form validation errors ───────────────────────────────── */
.form-error {
  color: var(--danger);
  font-size: 0.82rem;
  margin-top: 6px;
  padding-left: 2px;
  animation: fadeSlideDown 0.25s ease;
}

@keyframes fadeSlideDown {
  from { opacity: 0; transform: translateY(-6px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ── Scrollbar ────────────────────────────────────────────── */
::-webkit-scrollbar {
  width: 0;
  height: 0;
}

/* ── Safe area for iPhone notch ───────────────────────────── */
@supports (padding: max(0px)) {
  .header {
    padding-top: max(12px, calc(var(--safe-top) + 12px));
  }
  .tab-bar {
    padding-bottom: max(0px, var(--safe-bottom));
  }
}

/* ══════════════════════════════════════════════════════════════
   PHASE 2: Active Workout Logger Styles
   ══════════════════════════════════════════════════════════════ */

/* ── Start Workout Button on Routine Cards ────────────────── */
.btn-start-workout {
  width: 48px;
  height: 48px;
  border: none;
  background: var(--primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  cursor: pointer;
  flex-shrink: 0;
  transition: transform 0.15s, opacity 0.15s;
  box-shadow: 0 2px 12px rgba(0, 122, 255, 0.35);
}
.btn-start-workout:active {
  transform: scale(0.88);
  opacity: 0.85;
}
.btn-start-workout svg {
  width: 20px;
  height: 20px;
  margin-left: 2px;
}

/* ── Resume Banner ────────────────────────────────────────── */
.resume-banner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 16px;
  background: var(--primary-dim);
  border: 1px solid rgba(0, 122, 255, 0.3);
  border-radius: var(--radius);
  margin-bottom: 16px;
  cursor: pointer;
  transition: background 0.15s;
}
.resume-banner:active {
  background: rgba(0, 122, 255, 0.25);
}
.resume-banner-left {
  display: flex;
  align-items: center;
  gap: 12px;
}
.resume-banner-left strong {
  font-size: 0.95rem;
  display: block;
}
.resume-meta {
  font-size: 0.75rem;
  color: var(--primary);
  font-weight: 600;
}
.resume-pulse {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--primary);
  animation: pulse 1.5s infinite;
  flex-shrink: 0;
}
@keyframes pulse {
  0%,
  100% {
    opacity: 1;
    transform: scale(1);
  }
  50% {
    opacity: 0.4;
    transform: scale(0.85);
  }
}
.btn-resume {
  padding: 8px 16px;
  background: var(--primary);
  color: #fff;
  border-radius: 8px;
  font-size: 0.82rem;
  font-weight: 700;
}

/* ── Workout Header ───────────────────────────────────────── */
.workout-header {
  border-bottom: none;
}
.workout-header-center {
  flex: 1;
  text-align: center;
}
.workout-header-center h1 {
  font-size: 1.1rem;
  margin-bottom: 2px;
}
.workout-elapsed {
  font-size: 0.75rem;
  color: var(--primary);
  font-weight: 600;
  font-variant-numeric: tabular-nums;
}

/* ── Workout Content ──────────────────────────────────────── */
.workout-content {
  padding-bottom: calc(var(--safe-bottom) + 24px);
}

/* ── Progress Bar ─────────────────────────────────────────── */
.workout-progress {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 20px;
}
.workout-progress-bar {
  flex: 1;
  height: 6px;
  background: var(--bg-elevated);
  border-radius: 3px;
  overflow: hidden;
}
.workout-progress-fill {
  height: 100%;
  background: var(--primary);
  border-radius: 3px;
  transition: width 0.4s ease;
}
.workout-progress-text {
  font-size: 0.75rem;
  color: var(--text-muted);
  font-weight: 600;
  flex-shrink: 0;
  font-variant-numeric: tabular-nums;
}

/* ── Exercise Card ────────────────────────────────────────── */
.workout-exercise-card {
  background: var(--bg-card);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  padding: 20px 16px;
  margin-bottom: 16px;
}
.workout-exercise-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
}
.workout-exercise-name {
  font-size: 1.15rem;
  font-weight: 700;
  display: block;
}

/* ── Last Performance ─────────────────────────────────────── */
.personal-best-bar {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px 12px;
  background: rgba(255, 214, 10, 0.08);
  border: 1px solid rgba(255, 214, 10, 0.18);
  border-radius: 8px;
  margin-bottom: 10px;
  font-size: 0.78rem;
  font-weight: 600;
}
.pb-icon {
  color: var(--warning);
  display: flex;
  align-items: center;
}
.pb-icon svg {
  width: 14px;
  height: 14px;
}
.pb-label {
  color: var(--warning);
  font-weight: 800;
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}
.pb-value {
  color: var(--text-muted);
  font-variant-numeric: tabular-nums;
}
.pb-divider {
  color: var(--text-dim);
}

.last-performance {
  background: var(--bg-elevated);
  border-radius: var(--radius-sm);
  padding: 10px 14px;
  margin-bottom: 16px;
}
.last-perf-label {
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  display: block;
  margin-bottom: 6px;
}
.last-perf-sets {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}
.last-perf-set {
  font-size: 0.78rem;
  color: var(--text-muted);
  padding: 2px 8px;
  background: var(--bg-card);
  border-radius: 6px;
  font-variant-numeric: tabular-nums;
}

/* ── Sets Table ───────────────────────────────────────────── */
.sets-container {
  margin-top: 4px;
}
.sets-table-header {
  display: flex;
  align-items: center;
  padding: 0 4px 8px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 4px;
}
.sets-table-header span {
  font-size: 0.68rem;
  font-weight: 700;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.set-col-num {
  width: 36px;
  text-align: center;
  flex-shrink: 0;
}
.set-col-weight {
  flex: 1;
  text-align: center;
}
.set-col-reps {
  flex: 1;
  text-align: center;
}
.set-col-diff {
  width: 72px;
  text-align: center;
  flex-shrink: 0;
}
.set-col-action {
  width: 40px;
  text-align: center;
  flex-shrink: 0;
}

/* ── Logged Set Row ───────────────────────────────────────── */
.set-row {
  display: flex;
  align-items: center;
  padding: 8px 4px;
  border-bottom: 1px solid rgba(51, 51, 51, 0.5);
}
.set-row.completed {
  opacity: 0.85;
}
.set-number {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--text-dim);
}
.set-value {
  font-size: 0.95rem;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
}
.set-diff-icon svg {
  width: 20px;
  height: 20px;
}
.btn-delete-set {
  width: 28px;
  height: 28px;
  border: none;
  background: none;
  color: var(--text-dim);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  transition: color 0.15s, background 0.15s;
}
.btn-delete-set:active {
  color: var(--danger);
  background: rgba(255, 69, 58, 0.12);
}
.btn-delete-set svg {
  width: 14px;
  height: 14px;
}

/* ── Set Input Row ────────────────────────────────────────── */
.set-input-row {
  display: flex;
  align-items: center;
  padding: 10px 4px;
  gap: 0;
}
.set-input {
  width: 100%;
  padding: 10px 4px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--bg-elevated);
  color: var(--text);
  font-size: 1.05rem;
  font-weight: 700;
  text-align: center;
  outline: none;
  -webkit-appearance: none;
  appearance: none;
  font-variant-numeric: tabular-nums;
  transition: border-color 0.2s, box-shadow 0.2s;
}
.set-input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 2px var(--primary-dim);
}
.set-input::placeholder {
  color: var(--text-dim);
  font-weight: 400;
}
/* Hide number spinners */
.set-input::-webkit-inner-spin-button,
.set-input::-webkit-outer-spin-button {
  -webkit-appearance: none;
  margin: 0;
}
.set-input[type='number'] {
  -moz-appearance: textfield;
}

/* ── Difficulty Selector ──────────────────────────────────── */
.difficulty-selector {
  display: flex;
  gap: 2px;
}
.diff-btn {
  width: 28px;
  height: 28px;
  border: none;
  background: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  color: var(--text-dim);
  transition: all 0.15s;
  padding: 0;
}
.diff-btn svg {
  width: 22px;
  height: 22px;
}
.diff-btn:active {
  transform: scale(0.85);
}
.diff-btn[data-diff='easy'].active {
  color: var(--success);
  background: rgba(48, 209, 88, 0.15);
}
.diff-btn[data-diff='easy'].active svg {
  stroke: var(--success);
}
.diff-btn[data-diff='medium'].active {
  color: var(--warning);
  background: rgba(255, 214, 10, 0.15);
}
.diff-btn[data-diff='medium'].active svg {
  stroke: var(--warning);
}
.diff-btn[data-diff='hard'].active {
  color: var(--danger);
  background: rgba(255, 69, 58, 0.15);
}
.diff-btn[data-diff='hard'].active svg {
  stroke: var(--danger);
}

/* ── Log Set Button ───────────────────────────────────────── */
.btn-log-set {
  width: 40px;
  height: 40px;
  border: none;
  background: var(--primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  cursor: pointer;
  flex-shrink: 0;
  transition: transform 0.15s, opacity 0.15s;
  box-shadow: 0 2px 8px rgba(0, 122, 255, 0.3);
}
.btn-log-set:active {
  transform: scale(0.85);
  opacity: 0.85;
}
.btn-log-set svg {
  width: 20px;
  height: 20px;
}

/* ── Rest Timer ───────────────────────────────────────────── */
.rest-timer-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  padding: 24px 0 8px;
  animation: fadeIn 0.3s ease;
}
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}
.rest-timer-ring {
  position: relative;
  width: 120px;
  height: 120px;
}
.rest-timer-ring svg {
  width: 100%;
  height: 100%;
}
.rest-timer-text {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-size: 1.6rem;
  font-weight: 800;
  font-variant-numeric: tabular-nums;
  color: var(--text);
}
.rest-timer-label {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}
.rest-timer-controls {
  display: flex;
  gap: 12px;
  margin-top: 4px;
}
.rest-adjust-btn {
  padding: 8px 14px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--bg-elevated);
  color: var(--text-muted);
  font-size: 0.78rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.15s;
}
.rest-adjust-btn:active {
  background: var(--primary-dim);
  border-color: var(--primary);
  color: var(--primary);
}
.rest-skip-btn {
  padding: 8px 20px;
  border: none;
  border-radius: 8px;
  background: var(--primary);
  color: #fff;
  font-size: 0.82rem;
  font-weight: 700;
  cursor: pointer;
  transition: transform 0.15s;
}
.rest-skip-btn:active {
  transform: scale(0.93);
}

/* ── Workout Navigation ───────────────────────────────────── */
.workout-nav {
  display: flex;
  gap: 12px;
}
.btn-nav {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 16px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--bg-card);
  color: var(--text);
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.15s;
}
.btn-nav svg {
  width: 18px;
  height: 18px;
}
.btn-nav:active {
  background: var(--bg-elevated);
  transform: scale(0.97);
}
.btn-nav.disabled {
  opacity: 0.3;
  pointer-events: none;
}
.btn-nav-next {
  background: var(--bg-elevated);
  border-color: var(--primary);
  color: var(--primary);
}
.btn-finish-workout {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 16px;
  border: none;
  border-radius: var(--radius-sm);
  background: var(--success);
  color: #fff;
  font-size: 0.95rem;
  font-weight: 700;
  cursor: pointer;
  transition: transform 0.15s, opacity 0.15s;
  box-shadow: 0 2px 12px rgba(48, 209, 88, 0.3);
}
.btn-finish-workout:active {
  transform: scale(0.97);
  opacity: 0.85;
}
.btn-finish-workout svg {
  width: 20px;
  height: 20px;
}

/* ── Workout Summary ──────────────────────────────────────── */
.summary-hero {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 32px 0 24px;
  gap: 8px;
}
.summary-check {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: rgba(48, 209, 88, 0.15);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--success);
  margin-bottom: 8px;
  animation: scaleIn 0.4s ease;
}
@keyframes scaleIn {
  from {
    transform: scale(0);
  }
  to {
    transform: scale(1);
  }
}
.summary-check svg {
  width: 32px;
  height: 32px;
}
.summary-title {
  font-size: 1.4rem;
  font-weight: 800;
}
.summary-date {
  font-size: 0.85rem;
  color: var(--text-muted);
}
.summary-stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
  margin-bottom: 28px;
}
.summary-stat {
  background: var(--bg-card);
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  padding: 16px;
  text-align: center;
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.summary-stat-val {
  font-size: 1.3rem;
  font-weight: 800;
  color: var(--primary);
  font-variant-numeric: tabular-nums;
}
.summary-stat-label {
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}
.summary-exercises {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-bottom: 24px;
}
.summary-exercise {
  background: var(--bg-card);
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  padding: 16px;
}
.summary-ex-name {
  font-size: 0.95rem;
  font-weight: 700;
  margin-bottom: 12px;
}
.summary-sets {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.summary-set-row {
  display: flex;
  align-items: center;
  gap: 12px;
}
.summary-set-num {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--bg-elevated);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.7rem;
  font-weight: 700;
  color: var(--text-dim);
  flex-shrink: 0;
}
.summary-set-detail {
  flex: 1;
  font-size: 0.88rem;
  font-variant-numeric: tabular-nums;
}
.summary-set-diff {
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: capitalize;
  padding: 3px 10px;
  border-radius: 10px;
}
.summary-set-diff.diff-easy {
  background: rgba(48, 209, 88, 0.15);
  color: var(--success);
}
.summary-set-diff.diff-medium {
  background: rgba(255, 214, 10, 0.15);
  color: var(--warning);
}
.summary-set-diff.diff-hard {
  background: rgba(255, 69, 58, 0.15);
  color: var(--danger);
}

/* ══════════════════════════════════════════════════════════════
   PHASE 3: History & Progress Styles
   ══════════════════════════════════════════════════════════════ */

/* ── History Section ──────────────────────────────────────── */
.history-section {
  margin-bottom: 24px;
}

.history-month {
  margin-bottom: 20px;
}
.history-month-label {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 10px;
  padding-left: 4px;
}

.history-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.history-card {
  background: var(--bg-card);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  padding: 16px;
  cursor: pointer;
  transition: background 0.15s, transform 0.15s;
}
.history-card:active {
  background: var(--bg-elevated);
  transform: scale(0.985);
}

.history-card-top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 10px;
}
.history-card-info {
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.history-card-name {
  font-size: 1rem;
  font-weight: 700;
}
.history-card-date {
  font-size: 0.78rem;
  color: var(--text-muted);
}
.history-card-ago {
  font-size: 0.72rem;
  color: var(--text-dim);
  font-weight: 500;
  flex-shrink: 0;
  padding-top: 2px;
}

.history-card-stats {
  display: flex;
  gap: 16px;
  margin-bottom: 10px;
}
.history-stat {
  font-size: 0.8rem;
  color: var(--text-muted);
}
.history-stat strong {
  color: var(--text);
  font-weight: 700;
  margin-right: 2px;
}

.history-card-muscles {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}

/* ── Progress Chips (on history page) ─────────────────────── */
.progress-chips {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.progress-chip {
  display: flex;
  align-items: center;
  gap: 12px;
  width: 100%;
  padding: 12px 14px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: background 0.15s;
  text-align: left;
  color: var(--text);
  font-size: 0.9rem;
}
.progress-chip:active {
  background: var(--bg-elevated);
}
.progress-chip-icon {
  font-size: 1.2rem;
  width: 32px;
  height: 32px;
  background: var(--bg-elevated);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.progress-chip-name {
  flex: 1;
  font-weight: 600;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.progress-chip-arrow {
  width: 16px;
  height: 16px;
  color: var(--text-dim);
  flex-shrink: 0;
}

/* ── Workout Detail Extra ─────────────────────────────────── */
.summary-ex-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
}
.summary-ex-header .summary-ex-name {
  margin-bottom: 0;
}
.btn-progress-link {
  width: 32px;
  height: 32px;
  border: none;
  background: var(--primary-dim);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
  cursor: pointer;
  flex-shrink: 0;
  transition: transform 0.15s;
}
.btn-progress-link:active {
  transform: scale(0.85);
}
.btn-progress-link svg {
  width: 16px;
  height: 16px;
}

/* ── Progress View ────────────────────────────────────────── */
.progress-header {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 20px;
}
.progress-ex-icon {
  font-size: 1.6rem;
  width: 48px;
  height: 48px;
  background: var(--bg-elevated);
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.progress-ex-name {
  font-size: 1.2rem;
  font-weight: 800;
  margin-bottom: 2px;
}
.progress-ex-meta {
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* ── Progress Stats Grid ──────────────────────────────────── */
.progress-stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px;
  margin-bottom: 24px;
}
.progress-stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 14px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.progress-stat-label {
  font-size: 0.68rem;
  font-weight: 600;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.progress-stat-value {
  font-size: 1.15rem;
  font-weight: 800;
  font-variant-numeric: tabular-nums;
}
.progress-stat-value.positive {
  color: var(--success);
}
.progress-stat-value.negative {
  color: var(--danger);
}

/* ── Chart Section ────────────────────────────────────────── */
.chart-section {
  margin-bottom: 24px;
}
.chart-title {
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 12px;
}
.chart-container {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px 8px 8px;
  overflow: hidden;
}
.chart-container svg {
  display: block;
  width: 100%;
  height: auto;
}

/* ── Progress History Table ───────────────────────────────── */
.progress-history {
  margin-bottom: 32px;
}
.progress-table {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  overflow: hidden;
}
.progress-table-header {
  display: flex;
  padding: 10px 14px;
  border-bottom: 1px solid var(--border);
  background: var(--bg-elevated);
}
.progress-table-header span {
  font-size: 0.68rem;
  font-weight: 700;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.progress-table-row {
  display: flex;
  padding: 10px 14px;
  border-bottom: 1px solid rgba(51, 51, 51, 0.4);
  transition: background 0.15s;
}
.progress-table-row:last-child {
  border-bottom: none;
}
.ptcol-date {
  flex: 2;
  font-size: 0.82rem;
}
.ptcol-weight {
  flex: 1;
  text-align: center;
  font-size: 0.82rem;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
}
.ptcol-reps {
  flex: 0.7;
  text-align: center;
  font-size: 0.82rem;
  font-variant-numeric: tabular-nums;
}
.ptcol-vol {
  flex: 1;
  text-align: right;
  font-size: 0.82rem;
  font-variant-numeric: tabular-nums;
  color: var(--text-muted);
}

/* ══════════════════════════════════════════════════════════════
   Exercise Detail & Edit Styles
   ══════════════════════════════════════════════════════════════ */

/* ── Exercise Detail Card ─────────────────────────────────── */
.exercise-detail-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px 16px;
  margin-bottom: 16px;
}
.exercise-detail-header {
  display: flex;
  align-items: center;
  gap: 14px;
}

.detail-section {
  margin-top: 16px;
  padding-top: 16px;
  border-top: 1px solid var(--border);
}
.detail-section-title {
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 10px;
}
.detail-routine-tags {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}

/* ── Detail Actions ───────────────────────────────────────── */
.detail-actions {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.btn-detail-action {
  display: flex;
  align-items: center;
  gap: 12px;
  width: 100%;
  padding: 16px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text);
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.15s, transform 0.15s;
}
.btn-detail-action:active {
  background: var(--bg-elevated);
  transform: scale(0.98);
}
.btn-detail-action svg {
  width: 20px;
  height: 20px;
  color: var(--primary);
  flex-shrink: 0;
}
.btn-detail-action.danger {
  color: var(--danger);
}
.btn-detail-action.danger svg {
  color: var(--danger);
}

/* ── Chevron on exercise items ────────────────────────────── */
.exercise-item .chevron {
  flex-shrink: 0;
  color: var(--text-dim);
}
.exercise-item .chevron svg {
  width: 16px;
  height: 16px;
}

/* ══════════════════════════════════════════════════════════════
   Workout Notes Styles
   ══════════════════════════════════════════════════════════════ */

.workout-notes {
  margin-bottom: 16px;
}

.notes-toggle {
  display: flex;
  align-items: center;
  gap: 8px;
  width: 100%;
  padding: 12px 16px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-muted);
  font-size: 0.88rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.15s;
}
.notes-toggle:active {
  background: var(--bg-elevated);
}
.notes-toggle svg {
  width: 18px;
  height: 18px;
  color: var(--text-dim);
}
.notes-toggle.open {
  border-bottom-left-radius: 0;
  border-bottom-right-radius: 0;
  border-bottom-color: transparent;
}
.notes-indicator {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  margin-left: auto;
  background: transparent;
  transition: background 0.2s;
}
.notes-indicator.has-notes {
  background: var(--primary);
}

.notes-body {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-top: none;
  border-bottom-left-radius: var(--radius-sm);
  border-bottom-right-radius: var(--radius-sm);
  padding: 0 12px 12px;
}
.notes-textarea {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--bg-elevated);
  color: var(--text);
  font-size: 0.88rem;
  font-family: inherit;
  resize: vertical;
  outline: none;
  min-height: 72px;
  transition: border-color 0.2s, box-shadow 0.2s;
}
.notes-textarea:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 2px var(--primary-dim);
}
.notes-textarea::placeholder {
  color: var(--text-dim);
}

/* ── Summary Notes Display ────────────────────────────────── */
.summary-notes {
  margin-top: 12px;
  padding-top: 10px;
  border-top: 1px solid var(--border);
}
.summary-notes-label {
  font-size: 0.68rem;
  font-weight: 600;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  display: block;
  margin-bottom: 4px;
}
.summary-notes p {
  font-size: 0.85rem;
  color: var(--text-muted);
  line-height: 1.45;
  white-space: pre-wrap;
  word-break: break-word;
}

/* ── Progression Recommendation Badge ─────────────────────── */
.progression-badge {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  margin-bottom: 16px;
  font-size: 0.82rem;
  font-weight: 600;
  animation: fadeIn 0.3s ease;
}
.progression-icon {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.progression-icon svg {
  width: 16px;
  height: 16px;
}
.progression-detail {
  flex: 1;
  line-height: 1.3;
}
.progression-increase {
  background: rgba(48, 209, 88, 0.12);
  color: var(--success);
  border: 1px solid rgba(48, 209, 88, 0.25);
}
.progression-increase .progression-icon {
  background: rgba(48, 209, 88, 0.2);
}
.progression-decrease {
  background: rgba(255, 69, 58, 0.1);
  color: var(--danger);
  border: 1px solid rgba(255, 69, 58, 0.2);
}
.progression-decrease .progression-icon {
  background: rgba(255, 69, 58, 0.18);
}
.progression-maintain {
  background: rgba(255, 214, 10, 0.1);
  color: var(--warning);
  border: 1px solid rgba(255, 214, 10, 0.2);
}
.progression-maintain .progression-icon {
  background: rgba(255, 214, 10, 0.18);
}
.progression-reps_up {
  background: rgba(0, 122, 255, 0.1);
  color: var(--primary);
  border: 1px solid rgba(0, 122, 255, 0.2);
}
.progression-reps_up .progression-icon {
  background: rgba(0, 122, 255, 0.18);
}

/* ══════════════════════════════════════════════════════════════
   Muscle Heatmap Styles
   ══════════════════════════════════════════════════════════════ */

.heatmap-subtitle {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 20px;
}

.heatmap-grid {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  margin-bottom: 16px;
  overflow-x: auto;
}

.heatmap-header-row {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-bottom: 8px;
}

.heatmap-row {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-bottom: 6px;
}
.heatmap-row:last-child {
  margin-bottom: 0;
}

.heatmap-muscle-label {
  width: 110px;
  flex-shrink: 0;
  font-size: 0.8rem;
  font-weight: 600;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.heatmap-header-row .heatmap-week-label {
  flex: 1;
  text-align: center;
  font-size: 0.65rem;
  font-weight: 600;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.heatmap-cell {
  flex: 1;
  aspect-ratio: 1;
  max-width: 52px;
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--text-dim);
  transition: background 0.2s;
}

.heatmap-level-0 {
  background: var(--bg-elevated);
}
.heatmap-level-1 {
  background: rgba(0, 122, 255, 0.2);
  color: var(--primary);
}
.heatmap-level-2 {
  background: rgba(0, 122, 255, 0.45);
  color: #fff;
}
.heatmap-level-3 {
  background: var(--primary);
  color: #fff;
}

/* ── Heatmap Legend ───────────────────────────────────────── */
.heatmap-legend {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 4px;
  margin-bottom: 8px;
}
.heatmap-legend-label {
  font-size: 0.68rem;
  color: var(--text-dim);
  font-weight: 500;
  padding: 0 4px;
}
.heatmap-legend-cell {
  width: 20px;
  height: 20px;
  max-width: 20px;
  aspect-ratio: 1;
  border-radius: 4px;
  flex: none;
}

/* ── Heatmap Summary Cards ───────────────────────────────── */
.heatmap-summary {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 32px;
}
.heatmap-summary-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 14px 16px;
}
.heatmap-summary-header {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 10px;
}
.heatmap-summary-icon {
  font-size: 1.2rem;
  width: 32px;
  height: 32px;
  background: var(--bg-elevated);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.heatmap-summary-name {
  font-size: 0.95rem;
  font-weight: 700;
}
.heatmap-summary-stats {
  display: flex;
  gap: 16px;
}
.heatmap-summary-stat {
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.heatmap-summary-val {
  font-size: 1.05rem;
  font-weight: 800;
  font-variant-numeric: tabular-nums;
  color: var(--primary);
}
.heatmap-summary-label {
  font-size: 0.65rem;
  font-weight: 600;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* ══════════════════════════════════════════════════════════════
   Exercise Swap Styles
   ══════════════════════════════════════════════════════════════ */

/* ── Swap Button on Exercise Header ──────────────────────── */
.btn-swap-exercise {
  width: 36px;
  height: 36px;
  border: none;
  background: var(--bg-elevated);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  cursor: pointer;
  flex-shrink: 0;
  transition: transform 0.15s, background 0.15s, color 0.15s;
}
.btn-swap-exercise:active {
  transform: scale(0.85);
  background: var(--primary-dim);
  color: var(--primary);
}
.btn-swap-exercise svg {
  width: 18px;
  height: 18px;
}

/* ── Swap Overlay ─────────────────────────────────────────── */
.swap-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  z-index: 1000;
  display: flex;
  align-items: flex-end;
  justify-content: center;
  opacity: 0;
  transition: opacity 0.3s ease;
}
.swap-overlay.active {
  opacity: 1;
}
.swap-overlay.active .swap-panel {
  transform: translateY(0);
}

.swap-panel {
  width: 100%;
  max-width: 480px;
  max-height: 75vh;
  background: var(--bg-card);
  border-top-left-radius: 20px;
  border-top-right-radius: 20px;
  padding: 20px 16px calc(var(--safe-bottom) + 20px);
  overflow-y: auto;
  transform: translateY(100%);
  transition: transform 0.3s ease;
}

.swap-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
}
.swap-header h2 {
  font-size: 1.15rem;
  font-weight: 800;
}
.swap-close-btn {
  width: 32px;
  height: 32px;
  background: var(--bg-elevated);
}
.swap-close-btn svg {
  width: 16px;
  height: 16px;
}

.swap-current {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 16px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border);
}
.swap-current strong {
  color: var(--text);
}

.swap-empty {
  text-align: center;
  padding: 32px;
  color: var(--text-dim);
  font-size: 0.9rem;
}

.swap-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.swap-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 12px;
  background: var(--bg-elevated);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: background 0.15s, transform 0.15s;
}
.swap-item:active {
  background: var(--primary-dim);
  transform: scale(0.98);
}

.swap-arrow {
  flex-shrink: 0;
  color: var(--text-dim);
}
.swap-arrow svg {
  width: 18px;
  height: 18px;
}

/* ══════════════════════════════════════════════════════════════
   Settings & Data Management Styles
   ══════════════════════════════════════════════════════════════ */

.settings-section {
  margin-bottom: 28px;
}

.settings-stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px;
  margin-bottom: 10px;
}

.settings-stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 14px;
  display: flex;
  flex-direction: column;
  gap: 4px;
  text-align: center;
}

.settings-stat-val {
  font-size: 1.2rem;
  font-weight: 800;
  color: var(--primary);
  font-variant-numeric: tabular-nums;
}

.settings-stat-label {
  font-size: 0.68rem;
  font-weight: 600;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.settings-hint {
  font-size: 0.78rem;
  color: var(--text-dim);
  text-align: center;
}

.settings-description {
  font-size: 0.85rem;
  color: var(--text-muted);
  line-height: 1.5;
  margin-bottom: 16px;
}

.settings-actions {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.btn-settings-action {
  display: flex;
  align-items: center;
  gap: 14px;
  width: 100%;
  padding: 16px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text);
  cursor: pointer;
  transition: background 0.15s, transform 0.15s;
  text-align: left;
}
.btn-settings-action:active {
  background: var(--bg-elevated);
  transform: scale(0.98);
}

.settings-action-icon {
  width: 40px;
  height: 40px;
  background: var(--primary-dim);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  color: var(--primary);
}
.settings-action-icon svg {
  width: 20px;
  height: 20px;
}

.settings-action-text {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.settings-action-name {
  font-size: 0.95rem;
  font-weight: 600;
}

.settings-action-desc {
  font-size: 0.78rem;
  color: var(--text-muted);
}

/* Danger button variant */
.btn-settings-action.danger {
  border-color: rgba(255, 69, 58, 0.2);
}
.btn-settings-action.danger .settings-action-icon {
  background: rgba(255, 69, 58, 0.12);
  color: var(--danger);
}
.btn-settings-action.danger .settings-action-name {
  color: var(--danger);
}
.btn-settings-action.danger:active {
  background: rgba(255, 69, 58, 0.08);
}

.danger-title {
  color: var(--danger) !important;
}

/* About section */
.settings-about {
  text-align: center;
  padding: 24px 0;
}
.settings-about-text {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-muted);
}
.settings-about-sub {
  font-size: 0.75rem;
  color: var(--text-dim);
  margin-top: 4px;
}

/* ── Toast Notifications ──────────────────────────────────── */
.toast {
  position: fixed;
  bottom: calc(var(--tab-height) + var(--safe-bottom) + 16px);
  left: 50%;
  transform: translateX(-50%) translateY(20px);
  padding: 12px 24px;
  border-radius: 12px;
  font-size: 0.88rem;
  font-weight: 600;
  z-index: 2000;
  opacity: 0;
  transition: opacity 0.3s ease, transform 0.3s ease;
  pointer-events: none;
  white-space: nowrap;
  max-width: calc(100% - 32px);
  text-align: center;
}
.toast.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}
.toast-success {
  background: rgba(48, 209, 88, 0.9);
  color: #fff;
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
}
.toast-error {
  background: rgba(255, 69, 58, 0.9);
  color: #fff;
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
}

/* ══════════════════════════════════════════════════════════════
   Weekly Schedule Strip
   ══════════════════════════════════════════════════════════════ */

/* ── Schedule card wrapper ──────────────────────────────────── */
.week-schedule-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: 20px;
  padding: 14px;
}

/* ── Navigation row ────────────────────────────────────────── */
.week-nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 12px;
}
.week-nav-btn {
  background: none;
  border: none;
  color: var(--text-muted);
  width: 28px;
  height: 28px;
  cursor: pointer;
  padding: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  transition: background 0.15s;
}
.week-nav-btn:active {
  background: var(--bg-elevated);
}
.week-nav-btn.disabled {
  opacity: 0.2;
  pointer-events: none;
}
.week-nav-btn svg {
  width: 18px;
  height: 18px;
}
.week-nav-label {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--text);
}

/* ── Week stats line ───────────────────────────────────────── */
.week-stats {
  display: flex;
  gap: 12px;
  justify-content: center;
  margin-top: 10px;
  font-size: 0.75rem;
}
.week-stat {
  color: var(--text-dim);
}
.week-stat.completed {
  color: var(--success);
}
.week-stat.scheduled {
  color: var(--text-muted);
}
.week-stat.missed {
  color: var(--danger);
}
.week-stat.rest {
  color: var(--text-dim);
}

/* ── Week strip container ───────────────────────────────────── */
.week-strip {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0 4px;
  gap: 2px;
  user-select: none;
  -webkit-user-select: none;
}

/* ── Individual day ─────────────────────────────────────────── */
.week-day {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  flex: 1;
  cursor: default;
  transition: transform 0.15s, opacity 0.15s;
}

/* Day circle ring */
.week-day-ring {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 2.5px solid var(--border);
  transition: border-color 0.2s, background 0.2s, transform 0.15s;
}

.week-day-label {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--text-dim);
  transition: color 0.2s;
}

/* ── Day statuses ───────────────────────────────────────────── */

/* Rest day */
.week-day.rest .week-day-ring {
  border-color: var(--border);
}
.week-day.rest .week-day-label {
  color: var(--text-dim);
}

/* Scheduled day */
.week-day.scheduled .week-day-ring {
  border-color: var(--text-muted);
}
.week-day.scheduled .week-day-label {
  color: var(--text-muted);
}
.week-day.scheduled {
  cursor: pointer;
}

/* Completed day */
.week-day.completed .week-day-ring {
  border-color: var(--success);
  background: rgba(48, 209, 88, 0.12);
}
.week-day.completed .week-day-label {
  color: var(--success);
}

/* Missed day */
.week-day.missed .week-day-ring {
  border-color: var(--danger);
  background: rgba(255, 69, 58, 0.08);
}
.week-day.missed .week-day-label {
  color: var(--danger);
}
.week-day.missed {
  cursor: pointer;
}

/* Today highlight */
.week-day.today .week-day-ring {
  border-color: var(--primary);
  background: rgba(0, 122, 255, 0.12);
}
.week-day.today .week-day-label {
  color: var(--primary);
}
/* If today is also completed, keep green */
.week-day.today.completed .week-day-ring {
  border-color: var(--success);
  background: rgba(48, 209, 88, 0.15);
}
.week-day.today.completed .week-day-label {
  color: var(--success);
}

/* ── Day icon (below the ring) ──────────────────────────────── */
.week-day-icon {
  height: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.week-icon-rest {
  width: 18px;
  height: 18px;
}

.week-icon-scheduled {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}
.week-icon-scheduled svg {
  width: 16px;
  height: 16px;
  stroke: var(--text-muted);
}
.week-day.missed .week-icon-scheduled svg {
  stroke: var(--danger);
  opacity: 0.7;
}

.week-icon-done {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}
.week-icon-done > svg {
  width: 16px;
  height: 16px;
  stroke: var(--success);
}
.week-check {
  position: absolute;
  bottom: -3px;
  right: -6px;
  width: 12px;
  height: 12px;
  background: var(--success);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}
.week-check svg {
  width: 8px;
  height: 8px;
  stroke: #fff;
}

/* ── Drag mode ──────────────────────────────────────────────── */
.week-strip.drag-mode .week-day {
  opacity: 0.4;
}
.week-strip.drag-mode .week-day.dragging {
  opacity: 1;
  transform: scale(1.1);
}
.week-strip.drag-mode .week-day.dragging .week-day-ring {
  border-color: var(--primary);
  background: rgba(0, 122, 255, 0.15);
  box-shadow: 0 0 12px rgba(0, 122, 255, 0.3);
}
.week-strip.drag-mode .week-day.drop-target {
  opacity: 0.7;
}
.week-strip.drag-mode .week-day.drop-target .week-day-ring {
  border-color: var(--primary);
  border-style: dashed;
}
.week-strip.drag-mode .week-day.drag-over {
  opacity: 1;
  transform: scale(1.08);
}
.week-strip.drag-mode .week-day.drag-over .week-day-ring {
  border-style: solid;
  border-color: var(--primary);
  background: rgba(0, 122, 255, 0.15);
}