/* ══════════════════════════════════════════════════════════
   RepliX — Ana Tema  (Mobile-First PWA)
   ══════════════════════════════════════════════════════════ */

/* ── CSS Variables ─────────────────────────────────────── */
:root {
  --primary: #00b4c8;
  --primary-dark: #0097a7;
  --primary-light: #00d4e8;
  --accent: #7cb342;
  --bg-dark: #0f172a;
  --bg-card: #1e293b;
  --bg-card-hover: #273549;
  --bg-surface: #162032;
  --text-primary: #f1f5f9;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --border: #334155;
  --success: #10b981;
  --danger: #ef4444;
  --warning: #f59e0b;
  --info: #3b82f6;
  --radius: 16px;
  --radius-sm: 10px;
  --radius-xs: 6px;
  --shadow: 0 4px 24px rgba(0,0,0,.3);
  --shadow-sm: 0 2px 8px rgba(0,0,0,.2);
  --transition: .25s cubic-bezier(.4,0,.2,1);
  --safe-bottom: env(safe-area-inset-bottom, 0px);
  --nav-height: 64px;
}

/* ── Light Theme ───────────────────────────────────────── */
[data-theme="light"] {
  --bg-dark: #f8fafc;
  --bg-card: #ffffff;
  --bg-card-hover: #f1f5f9;
  --bg-surface: #e2e8f0;
  --text-primary: #0f172a;
  --text-secondary: #475569;
  --text-muted: #94a3b8;
  --border: #e2e8f0;
  --shadow: 0 4px 24px rgba(0,0,0,.08);
  --shadow-sm: 0 2px 8px rgba(0,0,0,.05);
}

[data-theme="light"] .app-header {
  background: linear-gradient(135deg, #ffffff 0%, #f1f5f9 100%);
}

[data-theme="light"] .bottom-nav {
  background: rgba(255,255,255,.95);
}

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

html {
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: var(--bg-dark);
  color: var(--text-primary);
  min-height: 100vh;
  min-height: 100dvh;
  overflow-x: hidden;
  padding-bottom: calc(var(--nav-height) + var(--safe-bottom) + 12px);
  -webkit-font-smoothing: antialiased;
}

a { color: var(--primary); text-decoration: none; }

img { max-width: 100%; display: block; }

/* ── App Shell ─────────────────────────────────────────── */
#app {
  max-width: 480px;
  margin: 0 auto;
  position: relative;
}

/* ── Header ────────────────────────────────────────────── */
.app-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: linear-gradient(135deg, var(--bg-dark) 0%, var(--bg-card) 100%);
  backdrop-filter: blur(12px);
  padding: 12px 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--border);
}

.header-brand {
  display: flex;
  align-items: center;
  gap: 10px;
}

.header-logo {
  width: 36px;
  height: 36px;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  color: #0f172a;
}

.header-logo-img {
  height: 44px;
  width: auto;
  object-fit: contain;
}

.header-title {
  font-size: 1.2rem;
  font-weight: 700;
  background: linear-gradient(135deg, var(--primary-light), var(--primary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.header-actions {
  display: flex;
  gap: 8px;
}

.header-btn {
  width: 38px;
  height: 38px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--bg-card);
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  cursor: pointer;
  transition: var(--transition);
}

.header-btn:hover, .header-btn:active {
  background: var(--bg-card-hover);
  color: var(--primary);
}

/* ── Bottom Navigation ─────────────────────────────────── */
.bottom-nav {
  position: fixed;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 100%;
  max-width: 480px;
  background: rgba(15,23,42,.95);
  backdrop-filter: blur(16px);
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: space-around;
  padding: 6px 8px calc(6px + var(--safe-bottom));
  z-index: 200;
}

.nav-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 3px;
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  color: var(--text-muted);
  font-size: .65rem;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition);
  border: none;
  background: none;
  position: relative;
  -webkit-tap-highlight-color: transparent;
}

.nav-item i { font-size: 18px; transition: var(--transition); }

.nav-item.active,
.nav-item:active {
  color: var(--primary);
}

.nav-item.active i {
  transform: scale(1.15);
}

.nav-item.active::after {
  content: '';
  position: absolute;
  bottom: calc(2px + var(--safe-bottom));
  width: 20px;
  height: 3px;
  background: var(--primary);
  border-radius: 2px;
}

/* ── Page Container ────────────────────────────────────── */
.page {
  display: none;
  padding: 16px;
  animation: fadeIn .3s ease;
}

.page.active { display: block; }

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ── Section Headers ───────────────────────────────────── */
.section-title {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.section-title i { color: var(--primary); font-size: .95rem; }

.section-subtitle {
  font-size: .8rem;
  color: var(--text-muted);
  margin-bottom: 16px;
}

/* ── Cards ─────────────────────────────────────────────── */
.card {
  background: var(--bg-card);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  padding: 16px;
  margin-bottom: 12px;
  transition: var(--transition);
}

.card:active { transform: scale(.98); background: var(--bg-card-hover); }

.card-clickable { cursor: pointer; }

/* ── Body Part Grid ────────────────────────────────────── */
.body-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
  margin-bottom: 16px;
}

.body-card {
  background: var(--bg-card);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  padding: 20px 14px;
  text-align: center;
  cursor: pointer;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.body-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--card-accent, var(--primary));
}

.body-card:active { transform: scale(.96); }

.body-card-icon {
  width: 48px;
  height: 48px;
  margin: 0 auto 10px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  background: rgba(245,158,11,.1);
  color: var(--card-accent, var(--primary));
}

.body-card-name {
  font-weight: 600;
  font-size: .9rem;
  margin-bottom: 4px;
}

.body-card-count {
  font-size: .7rem;
  color: var(--text-muted);
}

/* ── Equipment Filter Chips ────────────────────────────── */
.chip-group {
  display: flex;
  gap: 8px;
  margin-bottom: 16px;
  overflow-x: auto;
  padding-bottom: 4px;
  -webkit-overflow-scrolling: touch;
}

.chip-group::-webkit-scrollbar { display: none; }

.chip {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px 14px;
  border-radius: 20px;
  border: 1px solid var(--border);
  background: var(--bg-card);
  color: var(--text-secondary);
  font-size: .78rem;
  font-weight: 500;
  white-space: nowrap;
  cursor: pointer;
  transition: var(--transition);
  -webkit-tap-highlight-color: transparent;
}

.chip.active {
  background: var(--primary);
  color: #0f172a;
  border-color: var(--primary);
  font-weight: 600;
}

.chip:active { transform: scale(.95); }

/* ── Exercise List ─────────────────────────────────────── */
.exercise-item {
  display: flex;
  gap: 12px;
  padding: 12px;
  background: var(--bg-card);
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  margin-bottom: 8px;
  cursor: pointer;
  transition: var(--transition);
  align-items: center;
}

.exercise-item:active { background: var(--bg-card-hover); transform: scale(.98); }

.fav-star-btn {
  background: none;
  border: none;
  cursor: pointer;
  font-size: 1rem;
  padding: 6px;
  flex-shrink: 0;
  transition: var(--transition);
}
.fav-star-btn:active { transform: scale(1.3); }

.exercise-gif {
  width: 64px;
  height: 64px;
  border-radius: var(--radius-xs);
  object-fit: cover;
  background: var(--bg-surface);
  flex-shrink: 0;
}

.exercise-info { flex: 1; min-width: 0; }

.exercise-name {
  font-weight: 600;
  font-size: .88rem;
  margin-bottom: 4px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.exercise-meta {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.exercise-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 2px 8px;
  border-radius: 6px;
  font-size: .68rem;
  font-weight: 500;
  background: rgba(255,255,255,.06);
  color: var(--text-secondary);
}

/* ── Exercise Detail ───────────────────────────────────── */
.detail-gif-container {
  width: 100%;
  aspect-ratio: 4/3;
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--bg-surface);
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.detail-gif-container img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.detail-section {
  margin-bottom: 16px;
}

.detail-section h3 {
  font-size: .85rem;
  color: var(--text-muted);
  margin-bottom: 8px;
  text-transform: uppercase;
  letter-spacing: .5px;
}

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

.muscle-tag {
  padding: 4px 10px;
  border-radius: 20px;
  background: rgba(59,130,246,.15);
  color: var(--info);
  font-size: .75rem;
  font-weight: 500;
}

.tip-item {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  padding: 8px 0;
  font-size: .85rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

.tip-item i {
  color: var(--success);
  margin-top: 3px;
  flex-shrink: 0;
}

/* GIF Fallback */
.gif-fallback {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 30px 20px;
  text-align: center;
  width: 100%;
}

.gif-fallback i {
  font-size: 2.5rem;
  color: var(--text-muted);
  opacity: .4;
}

.gif-fallback p {
  font-size: .85rem;
  color: var(--text-muted);
  margin: 0;
}

/* How-To Section Highlight */
.detail-how-to {
  background: var(--bg-surface);
  border-radius: var(--radius-sm);
  padding: 14px;
  border-left: 3px solid var(--primary);
}

.detail-how-to h3 {
  display: flex;
  align-items: center;
  gap: 6px;
  color: var(--primary) !important;
}

.detail-how-to p {
  font-size: .88rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin: 0;
}

.detail-section h3 i {
  font-size: .75rem;
}

/* YouTube Buttons */
.btn-youtube {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px;
  border-radius: var(--radius-sm);
  background: #ff0000;
  color: #fff;
  font-size: .85rem;
  font-weight: 600;
  text-decoration: none;
  transition: var(--transition);
  margin-top: 12px;
}

.btn-youtube:active { opacity: .85; transform: scale(.98); }

.btn-yt-small {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  border-radius: 16px;
  background: #ff0000;
  color: #fff;
  font-size: .75rem;
  font-weight: 600;
  text-decoration: none;
  margin-top: 4px;
}

.btn-yt-small:active { opacity: .85; }

/* ── Timer / Workout Player ────────────────────────────── */
.timer-ring {
  width: 200px;
  height: 200px;
  margin: 20px auto;
  position: relative;
}

.timer-ring svg { width: 100%; height: 100%; transform: rotate(-90deg); }

.timer-ring-bg { fill: none; stroke: var(--border); stroke-width: 8; }
.timer-ring-progress { fill: none; stroke: var(--primary); stroke-width: 8; stroke-linecap: round; transition: stroke-dashoffset .5s; }

.timer-text {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  text-align: center;
}

.timer-value {
  font-size: 2.5rem;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
}

.timer-label {
  font-size: .8rem;
  color: var(--text-muted);
}

.workout-controls {
  display: flex;
  justify-content: center;
  gap: 16px;
  margin-top: 20px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: var(--radius-sm);
  border: none;
  font-size: .9rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  -webkit-tap-highlight-color: transparent;
}

.btn:active { transform: scale(.95); }

.btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: #0f172a;
}

.btn-secondary {
  background: var(--bg-card);
  border: 1px solid var(--border);
  color: var(--text-primary);
}

.btn-success { background: var(--success); color: #fff; }
.btn-danger { background: var(--danger); color: #fff; }

.btn-lg {
  padding: 14px 32px;
  font-size: 1rem;
  border-radius: var(--radius);
}

.btn-block { width: 100%; }

.btn-round {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  padding: 0;
  font-size: 22px;
}

/* ── Calorie Ring (Diet Page) ──────────────────────────── */
.calorie-summary {
  background: var(--bg-card);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  padding: 20px;
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 20px;
}

.calorie-ring-wrap {
  position: relative;
  width: 100px;
  height: 100px;
  flex-shrink: 0;
}

.calorie-ring-wrap svg { width: 100%; height: 100%; transform: rotate(-90deg); }
.calorie-ring-bg { fill: none; stroke: var(--border); stroke-width: 8; }
.calorie-ring-fill { fill: none; stroke: var(--primary); stroke-width: 8; stroke-linecap: round; }

.calorie-center {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  text-align: center;
}

.calorie-number {
  font-size: 1.3rem;
  font-weight: 700;
  display: block;
}

.calorie-unit {
  font-size: .65rem;
  color: var(--text-muted);
}

.macro-bars { flex: 1; }

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

.macro-label {
  font-size: .75rem;
  color: var(--text-secondary);
  width: 68px;
  flex-shrink: 0;
}

.macro-bar {
  flex: 1;
  height: 6px;
  background: var(--bg-surface);
  border-radius: 3px;
  overflow: hidden;
}

.macro-bar-fill { height: 100%; border-radius: 3px; transition: width .5s; }

.macro-value {
  font-size: .7rem;
  color: var(--text-muted);
  width: 30px;
  text-align: right;
}

/* ── Meal Section ──────────────────────────────────────── */
.meal-section {
  margin-bottom: 16px;
}

.meal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 14px;
  background: var(--bg-card);
  border-radius: var(--radius-sm) var(--radius-sm) 0 0;
  border: 1px solid var(--border);
  border-bottom: none;
}


.meal-title {
  font-weight: 600;
  font-size: .9rem;
  display: flex;
  align-items: center;
  gap: 8px;
}

.meal-cal { font-size: .8rem; color: var(--primary); font-weight: 600; }

.meal-items {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: 0 0 var(--radius-sm) var(--radius-sm);
  padding: 8px;
}

.meal-food-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px;
  border-radius: var(--radius-xs);
  transition: var(--transition);
}

.meal-food-item + .meal-food-item { border-top: 1px solid var(--border); }

.food-name { font-size: .82rem; }
.food-cal { font-size: .78rem; color: var(--text-muted); }

.add-food-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 10px;
  color: var(--primary);
  font-size: .82rem;
  font-weight: 500;
  cursor: pointer;
  border-radius: var(--radius-xs);
  transition: var(--transition);
}

.add-food-btn:active { background: rgba(245,158,11,.1); }

/* ── Water Tracker ─────────────────────────────────────── */
.water-tracker {
  background: var(--bg-card);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  padding: 16px;
  margin-bottom: 16px;
  text-align: center;
}

.water-glasses {
  display: flex;
  justify-content: center;
  gap: 4px;
  margin: 12px 0;
  flex-wrap: nowrap;
}

.water-glass {
  width: 28px;
  height: 34px;
  flex-shrink: 0;
  border-radius: 4px 4px 8px 8px;
  border: 2px solid var(--border);
  cursor: pointer;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.water-glass.filled {
  border-color: var(--info);
}

.water-glass.filled::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 100%;
  background: linear-gradient(to top, #3b82f6, #60a5fa);
  animation: fillUp .3s ease;
}

@keyframes fillUp {
  from { height: 0; }
  to { height: 100%; }
}

/* ── Food Search Modal ─────────────────────────────────── */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0,0,0,.7);
  z-index: 500;
  display: none;
  align-items: flex-end;
  justify-content: center;
}

.modal-overlay.active { display: flex; }

.modal-sheet {
  width: 100%;
  max-width: 480px;
  max-height: 85vh;
  background: var(--bg-dark);
  border-radius: var(--radius) var(--radius) 0 0;
  padding: 16px;
  overflow-y: auto;
  animation: slideUp .3s ease;
}

@keyframes slideUp {
  from { transform: translateY(100%); }
  to { transform: translateY(0); }
}

.modal-handle {
  width: 40px;
  height: 4px;
  background: var(--text-muted);
  border-radius: 2px;
  margin: 0 auto 16px;
}

.search-input {
  width: 100%;
  padding: 12px 16px 12px 42px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-size: .9rem;
  outline: none;
  transition: var(--transition);
}

.search-input:focus { border-color: var(--primary); }

.search-input-wrap {
  position: relative;
  margin-bottom: 16px;
}

.search-input-wrap i {
  position: absolute;
  left: 14px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
}

/* ── Portion Adjust ────────────────────────────────────── */
.portion-macros-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 8px;
  text-align: center;
}
.portion-macro-box {
  background: var(--surface);
  border-radius: var(--radius-sm);
  padding: 10px 4px;
}
.portion-macro-val {
  font-size: 1.15rem;
  font-weight: 800;
}
.portion-macro-val.cal { color: var(--primary); }
.portion-macro-val.pro { color: #ef4444; }
.portion-macro-val.carb { color: #3b82f6; }
.portion-macro-val.fat { color: #f59e0b; }
.portion-macro-label {
  font-size: .7rem;
  color: var(--text-muted);
  margin-top: 2px;
}

/* ── Photo Calorie Analysis ───────────────────────────── */
@keyframes spin { to { transform: rotate(360deg); } }


/* ── Weight Tracking ───────────────────────────────────── */
.weight-input-row {
  display: flex;
  gap: 8px;
  align-items: center;
}
.weight-input {
  width: 80px;
  padding: 10px 12px;
  background: var(--surface);
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-size: 1rem;
  font-weight: 700;
  text-align: center;
}
.weight-date-input {
  flex: 1;
  padding: 10px 12px;
  background: var(--surface);
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-size: .85rem;
}
.weight-stats-row {
  display: flex;
  gap: 10px;
  margin-bottom: 12px;
}
.weight-stat-pill {
  flex: 1;
  background: var(--surface);
  border-radius: var(--radius-sm);
  padding: 8px 10px;
  text-align: center;
}
.weight-stat-pill .pill-val { font-size: 1.1rem; font-weight: 800; color: var(--primary); }
.weight-stat-pill .pill-label { font-size: .65rem; color: var(--text-muted); margin-top: 2px; }
.weight-chart {
  height: 110px;
  position: relative;
  overflow: hidden;
}
.weight-chart svg { width: 100%; height: 100%; }

/* ── Body Photos ───────────────────────────────────────── */
.body-photos-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
}
.body-photo-thumb {
  aspect-ratio: 1;
  border-radius: var(--radius-sm);
  overflow: hidden;
  position: relative;
  cursor: pointer;
  background: var(--surface);
}
.body-photo-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .2s;
}
.body-photo-thumb:active img { transform: scale(.95); }
.body-photo-date {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  background: linear-gradient(transparent, rgba(0,0,0,.75));
  color: #fff;
  font-size: .6rem;
  padding: 8px 4px 4px;
  text-align: center;
  font-weight: 600;
}

/* ── Progress Page ─────────────────────────────────────── */
.stat-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  margin-bottom: 16px;
}

.stat-card {
  background: var(--bg-card);
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  padding: 14px 10px;
  text-align: center;
}

.stat-value {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--primary);
}

.stat-label {
  font-size: .68rem;
  color: var(--text-muted);
  margin-top: 2px;
}

/* ── Back Button ───────────────────────────────────────── */
.back-row {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 16px;
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
}

.back-row i {
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-card);
  border-radius: 8px;
  border: 1px solid var(--border);
  font-size: 14px;
  color: var(--text-secondary);
}

.back-row span { font-weight: 600; font-size: .95rem; }

/* ── Toast ─────────────────────────────────────────────── */
.toast {
  position: fixed;
  top: 16px;
  left: 50%;
  transform: translateX(-50%) translateY(-100px);
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 12px 20px;
  font-size: .85rem;
  font-weight: 500;
  z-index: 999;
  transition: transform .3s ease;
  max-width: 90%;
  text-align: center;
  box-shadow: var(--shadow);
}

.toast.show { transform: translateX(-50%) translateY(0); }
.toast.success { border-color: var(--success); color: var(--success); }
.toast.error { border-color: var(--danger); color: var(--danger); }

/* ── Empty State ───────────────────────────────────────── */
.empty-state {
  text-align: center;
  padding: 40px 20px;
  color: var(--text-muted);
}

.empty-state i { font-size: 3rem; margin-bottom: 12px; opacity: .4; }
.empty-state p { font-size: .85rem; }

/* ── Utilities ─────────────────────────────────────────── */
.text-primary { color: var(--primary) !important; }
.text-muted { color: var(--text-muted) !important; }
.text-center { text-align: center; }
.fw-600 { font-weight: 600; }
.mb-0 { margin-bottom: 0 !important; }
.mb-8 { margin-bottom: 8px; }
.mb-16 { margin-bottom: 16px; }
.mt-8 { margin-top: 8px; }
.mt-16 { margin-top: 16px; }
.gap-8 { gap: 8px; }
.d-flex { display: flex; }
.flex-between { display: flex; justify-content: space-between; align-items: center; }

/* ── Scrollbar ─────────────────────────────────────────── */
::-webkit-scrollbar { width: 4px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 2px; }

/* ── Loading Skeleton ──────────────────────────────────── */
.skeleton {
  background: linear-gradient(90deg, var(--bg-card) 25%, var(--bg-card-hover) 50%, var(--bg-card) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
  border-radius: var(--radius-xs);
}

@keyframes shimmer {
  0% { background-position: -200% 0; }
  100% { background-position: 200% 0; }
}

/* ── Progress Page extras ─────────────────────────────── */
.stat-grid-3x2 { grid-template-columns: repeat(3, 1fr); }

.btn-tiny {
  padding: 4px 10px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: var(--bg-surface);
  color: var(--text-secondary);
  font-size: .68rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 4px;
  transition: var(--transition);
  -webkit-tap-highlight-color: transparent;
}

.btn-tiny:active { transform: scale(.95); }
.btn-tiny-danger { color: var(--danger); border-color: rgba(239,68,68,.3); }
.btn-tiny-danger:active { background: rgba(239,68,68,.1); }

.workout-detail { animation: fadeIn .2s ease; }
@keyframes fadeIn { from { opacity: 0; transform: translateY(-4px); } to { opacity: 1; transform: none; } }

/* ── Program Page ──────────────────────────────────────── */
.program-card-title {
  font-size: .9rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 10px;
}

.program-card-title i { color: var(--primary); font-size: .85rem; }

/* Pain Area Grid */
.pain-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
}

.pain-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  padding: 10px 6px;
  border-radius: var(--radius-sm);
  border: 2px solid var(--border);
  cursor: pointer;
  transition: var(--transition);
  text-align: center;
  -webkit-tap-highlight-color: transparent;
}

.pain-item i { font-size: 1.2rem; color: var(--text-muted); transition: var(--transition); }
.pain-item span { font-size: .68rem; color: var(--text-secondary); }

.pain-item.active {
  border-color: var(--danger);
  background: rgba(239,68,68,.1);
}

.pain-item.active i { color: var(--danger); }
.pain-item.active span { color: var(--danger); font-weight: 600; }
.pain-item:active { transform: scale(.95); }

/* Settings Rows */
.setting-row { margin-bottom: 14px; }
.setting-row:last-child { margin-bottom: 0; }
.setting-label {
  display: block;
  font-size: .78rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 8px;
}

.chip-group-sm {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}

.chip-sm {
  padding: 6px 12px;
  border-radius: 16px;
  border: 1px solid var(--border);
  background: var(--bg-surface);
  color: var(--text-secondary);
  font-size: .73rem;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition);
  -webkit-tap-highlight-color: transparent;
}

.chip-sm.active {
  background: var(--primary);
  color: #0f172a;
  border-color: var(--primary);
  font-weight: 600;
}

.chip-sm:active { transform: scale(.95); }

/* Program Result */
.calorie-big {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--primary);
}

.program-exercise-card {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px;
  background: var(--bg-card);
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  margin-bottom: 8px;
  transition: var(--transition);
}

.program-exercise-card .ex-order {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--primary);
  color: #0f172a;
  font-size: .75rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.program-exercise-card .ex-info { flex: 1; min-width: 0; }
.program-exercise-card .ex-name { font-weight: 600; font-size: .85rem; margin-bottom: 2px; }
.program-exercise-card .ex-detail { font-size: .72rem; color: var(--text-muted); }

.program-exercise-card .ex-kcal {
  font-size: .78rem;
  font-weight: 600;
  color: var(--warning);
  white-space: nowrap;
}

.program-exercise-card .ex-remove {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  border: 1px solid var(--border);
  background: none;
  color: var(--danger);
  font-size: .7rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
  flex-shrink: 0;
}

.program-exercise-card .ex-remove:active { background: rgba(239,68,68,.15); }

/* Enhanced program cards */
.prog-enhanced { gap: 8px; padding: 10px 12px; }
.prog-enhanced .ex-order {
  width: 30px;
  height: 30px;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  transition: var(--transition);
}
.prog-enhanced .ex-order:hover {
  transform: scale(1.15);
  box-shadow: 0 0 12px rgba(245,158,11,.4);
}

.prog-card-actions {
  display: flex;
  flex-direction: column;
  gap: 2px;
  flex-shrink: 0;
}

.prog-act-btn {
  width: 24px;
  height: 22px;
  border: none;
  border-radius: 4px;
  background: var(--bg-surface);
  color: var(--text-muted);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: .6rem;
  transition: var(--transition);
}
.prog-act-btn:hover { background: var(--bg-card-hover); color: var(--text-primary); }
.prog-act-btn:disabled { opacity: .25; pointer-events: none; }
.prog-act-btn.prog-act-remove { color: var(--danger); }
.prog-act-btn.prog-act-remove:hover { background: rgba(239,68,68,.12); }

.opacity-50 { opacity: .5; pointer-events: none; }

.program-exercise-card.excluded {
  opacity: .4;
  border-style: dashed;
}

.program-exercise-card.excluded .ex-name { text-decoration: line-through; }

/* Program section header */
.program-section-header {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 0;
  margin-top: 12px;
  margin-bottom: 4px;
}

.program-section-header .dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  flex-shrink: 0;
}

.program-section-header span {
  font-size: .82rem;
  font-weight: 600;
}

/* ── Weekly Program ────────────────────────────────────── */
.weekly-day-tabs {
  display: flex;
  gap: 6px;
  overflow-x: auto;
  padding-bottom: 8px;
  margin-bottom: 12px;
  -webkit-overflow-scrolling: touch;
}
.weekly-day-tabs::-webkit-scrollbar { display: none; }
.weekly-day-tab {
  flex-shrink: 0;
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  background: var(--bg-card);
  border: 2px solid transparent;
  text-align: center;
  cursor: pointer;
  min-width: 70px;
  transition: all .2s;
}
.weekly-day-tab.active {
  border-color: var(--primary);
  background: rgba(245,158,11,.12);
}
.weekly-day-tab .day-label {
  font-size: .72rem;
  font-weight: 700;
  color: var(--primary);
  display: block;
}
.weekly-day-tab .day-focus {
  font-size: .62rem;
  color: var(--text-muted);
  margin-top: 2px;
  display: block;
  white-space: nowrap;
}
.weekly-day-tab.completed {
  border-color: var(--success);
  background: rgba(16,185,129,.08);
}
.weekly-day-tab.completed .day-label { color: var(--success); }

.weekly-day-summary {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px 14px;
  background: var(--bg-card);
  border-radius: var(--radius-sm);
  margin-bottom: 10px;
}
.weekly-day-summary .day-title {
  font-weight: 700;
  font-size: .95rem;
}
.weekly-day-summary .day-meta {
  font-size: .72rem;
  color: var(--text-muted);
}
.compound-badge {
  display: inline-block;
  font-size: .6rem;
  font-weight: 700;
  color: var(--primary);
  background: rgba(245,158,11,.12);
  padding: 2px 6px;
  border-radius: 4px;
  margin-left: 6px;
  vertical-align: middle;
}

/* ── Workout: Set/Rep Adjuster ─────────────────────────── */
.set-rep-adjuster {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  margin-bottom: 14px;
}
.adj-group {
  display: flex;
  align-items: center;
  gap: 6px;
  background: var(--bg-card);
  border-radius: var(--radius-sm);
  padding: 4px 8px;
}
.adj-btn {
  width: 28px; height: 28px;
  border-radius: 50%;
  border: 1px solid var(--border);
  background: var(--bg-surface);
  color: var(--text-primary);
  display: flex; align-items: center; justify-content: center;
  cursor: pointer; font-size: .75rem;
}
.adj-btn:active { background: var(--primary); color: #000; }
.adj-value { font-size: .85rem; font-weight: 700; min-width: 55px; text-align: center; }

/* ── Set Tracker Dots ─────────────────────────────────── */
.set-tracker {
  display: flex;
  justify-content: center;
  gap: 6px;
  margin-bottom: 14px;
}
.set-dot {
  width: 28px; height: 28px;
  border-radius: 50%;
  border: 2px solid var(--border);
  display: flex; align-items: center; justify-content: center;
  font-size: .7rem; font-weight: 700;
  color: var(--text-muted);
  transition: all .3s;
}
.set-dot.done {
  border-color: var(--success);
  background: rgba(16,185,129,.15);
  color: var(--success);
}

/* ── Voice Controls ───────────────────────────────────── */
.voice-controls {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  margin-bottom: 14px;
}
.voice-toggle {
  display: flex; align-items: center; gap: 6px;
  padding: 6px 12px;
  border-radius: 20px;
  border: 1px solid var(--border);
  background: var(--bg-card);
  color: var(--text-muted);
  cursor: pointer; font-size: .75rem;
  transition: all .2s;
}
.voice-toggle.active {
  border-color: var(--primary);
  color: var(--primary);
  background: rgba(245,158,11,.1);
}
.speed-chips { display: flex; gap: 4px; }
.spd-chip {
  padding: 4px 10px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: var(--bg-surface);
  color: var(--text-secondary);
  font-size: .68rem; font-weight: 600;
  cursor: pointer;
}
.spd-chip.active {
  background: var(--primary);
  color: #000;
  border-color: var(--primary);
}

/* ── Score Badge ──────────────────────────────────────── */
.score-badge-row { text-align: center; margin-bottom: 10px; }
.score-badge {
  display: inline-flex;
  align-items: center; gap: 4px;
  background: linear-gradient(135deg, rgba(251,191,36,.15), rgba(245,158,11,.08));
  border: 1px solid rgba(251,191,36,.3);
  color: #fbbf24;
  padding: 4px 14px;
  border-radius: 20px;
  font-size: .8rem; font-weight: 700;
}

/* ── Toggle Switch ────────────────────────────────────── */
.switch {
  position: relative;
  display: inline-block;
  width: 44px; height: 24px;
  flex-shrink: 0;
}
.switch input { opacity: 0; width: 0; height: 0; }
.switch-slider {
  position: absolute; inset: 0;
  background: var(--border);
  border-radius: 24px;
  cursor: pointer;
  transition: .3s;
}
.switch-slider::before {
  content: '';
  position: absolute;
  width: 18px; height: 18px;
  left: 3px; bottom: 3px;
  background: #fff;
  border-radius: 50%;
  transition: .3s;
}
.switch input:checked + .switch-slider { background: var(--success); }
.switch input:checked + .switch-slider::before { transform: translateX(20px); }

/* ── Workout Analysis Panel ────────────────────────────── */
.workout-detail-panel {
  margin-top: 10px;
  padding-top: 10px;
  border-top: 1px solid var(--border);
}

.analysis-summary {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 6px;
  margin-bottom: 10px;
}

.analysis-item {
  text-align: center;
  padding: 6px 4px;
  border-radius: var(--radius-sm);
  background: var(--bg-surface);
}

.analysis-label { display: block; font-size: .62rem; color: var(--text-muted); margin-bottom: 2px; }
.analysis-value { display: block; font-size: .75rem; font-weight: 600; }

.analysis-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  margin-bottom: 10px;
}

.analysis-tag {
  padding: 3px 8px;
  border-radius: 10px;
  background: rgba(245,158,11,.12);
  color: var(--primary);
  font-size: .65rem;
  font-weight: 600;
}

.analysis-exercises { border-top: 1px solid var(--border); padding-top: 8px; }

.analysis-ex-row {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 5px 0;
  border-bottom: 1px solid rgba(255,255,255,.04);
}

.analysis-ex-row:last-child { border-bottom: none; }

.analysis-ex-num {
  width: 20px; height: 20px;
  border-radius: 50%;
  background: var(--bg-surface);
  font-size: .62rem; font-weight: 700;
  display: flex; align-items: center; justify-content: center;
  color: var(--text-muted);
  flex-shrink: 0;
}

.analysis-ex-info { flex: 1; min-width: 0; }
.analysis-ex-name { font-size: .75rem; font-weight: 500; display: block; }
.analysis-ex-meta { font-size: .62rem; color: var(--text-muted); }
.analysis-ex-kcal { font-size: .7rem; font-weight: 600; color: var(--warning); white-space: nowrap; }

/* ── Start Workout Button ──────────────────────────────── */
.start-workout-btn {
  position: sticky;
  bottom: calc(var(--nav-height) + var(--safe-bottom) + 20px);
  z-index: 50;
}

/* ── Workout KG Input ──────────────────────────────────── */
.workout-kg-input {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  padding: 8px 12px;
  font-size: .9rem;
  font-family: inherit;
  width: 100%;
  text-align: center;
  transition: border-color var(--transition);
}
.workout-kg-input:focus {
  outline: none;
  border-color: var(--primary);
}

/* ── PR / Progressive Overload Badge ──────────────────── */
.pr-badge {
  display: inline-block;
  background: linear-gradient(135deg, rgba(16,185,129,.15), rgba(16,185,129,.08));
  border: 1px solid rgba(16,185,129,.3);
  color: var(--success);
  border-radius: 20px;
  padding: 2px 8px;
  font-size: .7rem;
  font-weight: 700;
  animation: fadeInScale .3s ease;
}

@keyframes fadeInScale {
  from { opacity: 0; transform: scale(.8); }
  to { opacity: 1; transform: scale(1); }
}

/* ── Weekly Summary Card ───────────────────────────────── */
.weekly-summary-msg {
  font-size: .8rem;
  padding: 8px 12px;
  border-radius: 8px;
  font-weight: 600;
  margin-top: 4px;
}
.weekly-summary-msg.success {
  background: rgba(16,185,129,.1);
  color: var(--success);
}
.weekly-summary-msg.warning {
  background: rgba(245,158,11,.1);
  color: var(--warning);
}

/* ── Onboarding Step Dots ──────────────────────────────── */
#ob-dot-1, #ob-dot-2, #ob-dot-3 {
  transition: background .3s;
}

/* ── Tablet / Desktop Responsive ──────────────────────── */
@media (min-width: 640px) {
  #app {
    max-width: 600px;
  }
  .stat-grid {
    grid-template-columns: repeat(3, 1fr);
  }
  .body-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

@media (min-width: 1024px) {
  #app {
    max-width: 720px;
  }
  .page {
    padding: 20px 28px;
  }
}

/* ── Micro Animations ──────────────────────────────────── */
.card {
  transition: transform var(--transition), box-shadow var(--transition);
}
.card:active {
  transform: scale(.99);
}

.nav-item {
  transition: color var(--transition), background var(--transition);
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

.page { animation: fadeIn .25s ease; }

/* ── Onboarding Overlay Animation ─────────────────────── */
#onboarding-modal > div {
  animation: slideUp .35s cubic-bezier(.34,1.56,.64,1);
}

@keyframes slideUp {
  from { transform: translateY(60px); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}

/* ── Light Theme Improvements ──────────────────────────── */
[data-theme="light"] .workout-kg-input {
  background: #f8fafc;
  border-color: #e2e8f0;
  color: #0f172a;
}
[data-theme="light"] .modal-sheet {
  box-shadow: 0 -4px 40px rgba(0,0,0,.12);
}
[data-theme="light"] .bottom-nav {
  border-top: 1px solid #e2e8f0;
}
[data-theme="light"] .exercise-item {
  border-color: #e2e8f0;
}
[data-theme="light"] .stat-card {
  border: 1px solid #e2e8f0;
  box-shadow: 0 2px 8px rgba(0,0,0,.04);
}

/* ── primary-rgb for rgba usage ────────────────────────── */
:root { --primary-rgb: 0,180,200; }
[data-theme="light"] { --primary-rgb: 0,180,200; }