/* ==========================================================================
   PERFO — design tokens (section 15 du cahier des charges)
   ========================================================================== */

:root {
  --font-ui: -apple-system, "SF Pro Text", "SF Pro Display", sans-serif;
  --font-mono: ui-monospace, "SF Mono", "Menlo", monospace;

  --ease-standard: cubic-bezier(0.32, 0.72, 0, 1);
  --duration-micro: 150ms;
  --duration-standard: 300ms;
  --duration-sheet: 420ms;

  --accent: #9C9FF2;
  --accent-rgb: 156, 159, 242;
  --bg-primary: #FAF8F5;
  --bg-primary-rgb: 250, 248, 245;
  --bg-elevated: #FFFFFF;
  --text-primary: #33333A;
  --text-secondary: #7C7C85;
  --status-done: #A7DDBB;
  --status-partial: #F3CFA0;
  --status-missed: #C9C4D6;
  --status-rest: #E7E3EC;
  --separator: rgba(51,51,58,0.08);

  --radius-nav: 28px;
  --radius-card: 16px;
  --radius-btn: 14px;
  --radius-pill: 999px;
  --radius-sheet: 28px;
  --radius-input: 12px;

  color-scheme: light;
}

[data-theme="dark"] {
  color-scheme: dark;
  --bg-primary: #18181B;
  --bg-primary-rgb: 24, 24, 27;
  --bg-elevated: #232326;
  --text-primary: #EDEDEF;
  --text-secondary: #9B9BA3;
  --status-done: #8FCBA6;
  --status-partial: #E0B888;
  --status-missed: #4B4852;
  --status-rest: #2E2C33;
  --separator: rgba(237,237,239,0.10);
}

@media (prefers-color-scheme: dark) {
  [data-theme="system"] {
    color-scheme: dark;
    --bg-primary: #18181B;
    --bg-primary-rgb: 24, 24, 27;
    --bg-elevated: #232326;
    --text-primary: #EDEDEF;
    --text-secondary: #9B9BA3;
    --status-done: #8FCBA6;
    --status-partial: #E0B888;
    --status-missed: #4B4852;
    --status-rest: #2E2C33;
    --separator: rgba(237,237,239,0.10);
  }
}

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

html {
  min-height: 100%;
  background: var(--bg-primary);
}

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg-primary);
  color: var(--text-primary);
  font-family: var(--font-ui);
  overscroll-behavior-y: none;
  overflow-x: hidden;
}

body {
  min-height: 100%;
  transition: background var(--duration-standard) var(--ease-standard);
}

body.scroll-locked {
  overflow: hidden;
  height: 100dvh;
}

#app { min-height: 100dvh; position: relative; overflow-x: hidden; }

.content {
  padding: calc(env(safe-area-inset-top) + 0.75rem) 1rem calc(120px + env(safe-area-inset-bottom)) 1rem;
  min-height: 100dvh;
  max-width: 100%;
  overflow-x: hidden;
  will-change: transform;
}

/* Sélection de texte : on la coupe par défaut sur les éléments d'interface
   (titres, boutons, libellés, chips) mais on la garde pour le texte de
   contenu que l'utilisateur pourrait vouloir copier. */
.large-title, .title, .headline, .tab-label, .caption, .field-label,
.chip, .segmented button, .internal-tab, .day-name, .screen-header,
.status-dot, .streak-stat .caption {
  -webkit-user-select: none;
  user-select: none;
}

button {
  font-family: var(--font-ui);
  border: none;
  background: none;
  color: inherit;
  cursor: pointer;
  -webkit-user-select: none;
  user-select: none;
}

input, select, textarea {
  font-family: var(--font-ui);
  color: var(--text-primary);
  background: var(--bg-elevated);
  border: 1px solid var(--separator);
  border-radius: var(--radius-input);
  padding: 0.65rem 0.8rem;
  font-size: 1.0625rem;
}

input:focus, select:focus, textarea:focus { outline: 2px solid var(--accent); outline-offset: 1px; }

/* Typographie (section 15.3) */
.large-title { font-size: 2.125rem; font-weight: 700; margin: 0 0 0.9rem 0; letter-spacing: -0.02em; }
.title { font-size: 1.375rem; font-weight: 600; margin: 1.4rem 0 0.6rem 0; }
.headline { font-size: 1.0625rem; font-weight: 600; }
.body-text { font-size: 1.0625rem; font-weight: 400; }
.callout { font-size: 1rem; color: var(--text-secondary); }
.footnote { font-size: 0.8125rem; color: var(--text-secondary); }
.caption { font-size: 0.75rem; color: var(--text-secondary); }
.numeric { font-family: var(--font-mono); font-variant-numeric: tabular-nums; font-weight: 600; }

/* ==========================================================================
   Couche contrôle : verre (Liquid Glass) — section 15.5
   ========================================================================== */

.glass-surface {
  background: rgba(var(--bg-primary-rgb), 0.72);
  -webkit-backdrop-filter: blur(20px) saturate(1.6);
  backdrop-filter: blur(20px) saturate(1.6);
  border: 0.5px solid rgba(255,255,255,0.3);
  box-shadow: 0 8px 32px rgba(0,0,0,0.10);
}

@media (prefers-reduced-transparency: reduce) {
  .glass-surface {
    background: var(--bg-elevated);
    -webkit-backdrop-filter: none;
    backdrop-filter: none;
  }
}

/* Barre de navigation du bas */
.tabbar {
  position: fixed;
  left: 21pt; right: 21pt;
  bottom: calc(21pt + env(safe-area-inset-bottom));
  height: 62px;
  border-radius: var(--radius-nav);
  display: flex;
  align-items: center;
  justify-content: space-around;
  z-index: 50;
}

.tab-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  flex: 1;
  min-height: 44px;
  min-width: 44px;
  padding: 4px;
  color: var(--text-secondary);
  transition: color var(--duration-standard) var(--ease-standard);
}

.tab-btn.active { color: var(--accent); }

.tab-icon {
  width: 24px; height: 24px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.7;
  stroke-linecap: round;
  stroke-linejoin: round;
  transition: transform var(--duration-standard) var(--ease-standard);
}

.tab-btn.active .tab-icon { fill: currentColor; fill-opacity: 0.18; animation: tabPop var(--duration-standard) var(--ease-standard); }

@keyframes tabPop {
  0% { transform: scale(1); }
  50% { transform: scale(1.15); }
  100% { transform: scale(1); }
}

.tab-label { font-size: 0.6875rem; font-weight: 500; }

/* ==========================================================================
   Boutons
   ========================================================================== */

.btn {
  min-height: 44px;
  padding: 0.75rem 1.2rem;
  border-radius: var(--radius-btn);
  font-size: 1.0625rem;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  transition: transform var(--duration-micro) var(--ease-standard), opacity var(--duration-micro) var(--ease-standard);
}

.btn:active { transform: scale(0.96); opacity: 0.85; }

.btn-primary { background: var(--accent); color: #1B1B1F; }
[data-theme="dark"] .btn-primary, .dark-mode .btn-primary { color: #14141A; }
.btn-secondary { background: var(--bg-elevated); color: var(--text-primary); border: 1px solid var(--separator); }
.btn-ghost { color: var(--accent); }
.btn-danger { color: #B5495B; }
.btn-block { width: 100%; }
.btn-sm { min-height: 36px; padding: 0.4rem 0.9rem; font-size: 0.9rem; }

.btn-pill { border-radius: var(--radius-pill); }

.icon-btn {
  min-width: 44px; min-height: 44px;
  display: inline-flex; align-items: center; justify-content: center;
  border-radius: var(--radius-pill);
}
.icon-btn:active { transform: scale(0.9); }

.fab {
  position: fixed;
  right: calc(1.2rem + env(safe-area-inset-right));
  bottom: calc(100px + env(safe-area-inset-bottom));
  min-width: 56px; height: 56px;
  border-radius: var(--radius-pill);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.6rem;
  z-index: 40;
}

/* ==========================================================================
   Cartes / listes
   ========================================================================== */

.card {
  background: var(--bg-elevated);
  border-radius: var(--radius-card);
  padding: 1rem;
}

.today-card {
  background: var(--bg-elevated);
  border-radius: var(--radius-card);
  padding: 1.3rem;
  box-shadow: 0 4px 18px rgba(0,0,0,0.06);
  margin-bottom: 1rem;
}

.list-plain { list-style: none; margin: 0; padding: 0; }
.list-plain .list-row {
  display: flex; align-items: center; justify-content: space-between;
  padding: 0.85rem 0.1rem;
  border-bottom: 1px solid var(--separator);
  min-height: 44px;
  gap: 0.75rem;
  position: relative;
}
.list-plain .list-row:last-child { border-bottom: none; }

.chip {
  display: inline-flex; align-items: center;
  padding: 0.28rem 0.75rem;
  border-radius: var(--radius-pill);
  font-size: 0.75rem;
  font-weight: 500;
  background: var(--bg-elevated);
  border: 1px solid var(--separator);
  color: var(--text-secondary);
}
.chip.active { background: var(--accent); color: #1B1B1F; border-color: transparent; }

.status-dot { width: 10px; height: 10px; border-radius: 50%; flex-shrink: 0; }
.status-done-bg { background: var(--status-done); }
.status-partial-bg { background: var(--status-partial); }
.status-missed-bg { background: var(--status-missed); }
.status-rest-bg { background: var(--status-rest); }

.empty-state {
  text-align: center;
  color: var(--text-secondary);
  padding: 3rem 1.2rem;
  font-size: 1rem;
  line-height: 1.5;
}

/* ==========================================================================
   Recherche / champs
   ========================================================================== */

.search-bar {
  position: sticky;
  top: 0;
  z-index: 5;
  margin: -0.2rem -0.1rem 0.8rem -0.1rem;
  padding: 0.5rem 0.1rem;
}
.search-bar input {
  width: 100%;
  border-radius: var(--radius-pill);
  padding: 0.6rem 1rem;
}

.field-group { margin-bottom: 1rem; }
.field-label { display: block; font-size: 0.8125rem; color: var(--text-secondary); margin-bottom: 0.35rem; font-weight: 500; }
.field-row { display: flex; gap: 0.6rem; }
.field-row .field-group { flex: 1; }

/* ==========================================================================
   Écrans divers
   ========================================================================== */

.screen-header {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: 0.4rem;
}

.streak-row { display: flex; gap: 1.4rem; margin-bottom: 1.2rem; }
.streak-stat { display: flex; flex-direction: column; }
.streak-stat .value { font-size: 1.6rem; }

.week-grid { display: flex; flex-direction: column; gap: 0.55rem; }
.week-day-row {
  display: flex; align-items: center; justify-content: space-between;
  padding: 0.9rem 1rem;
  background: var(--bg-elevated);
  border-radius: var(--radius-card);
  min-height: 44px;
}
.week-day-row .day-name { font-weight: 600; width: 3.4rem; }

/* Calendrier — grille dense, pas de cartes (17.5) */
.calendar-head {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: 0.8rem;
}
.cal-grid {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 4px;
}
.cal-weekday-label { text-align: center; font-size: 0.6875rem; color: var(--text-secondary); padding-bottom: 4px; }
.cal-cell {
  aspect-ratio: 1;
  border-radius: 8px;
  display: flex; align-items: center; justify-content: center;
  font-size: 0.8125rem;
  font-family: var(--font-mono);
  background: transparent;
  border: 1px solid var(--separator);
  position: relative;
  transition: transform var(--duration-micro) var(--ease-standard);
}
.cal-cell.filled { animation: cellFill var(--duration-standard) var(--ease-standard); }
@keyframes cellFill {
  0% { transform: scale(0.8); opacity: 0.3; }
  100% { transform: scale(1); opacity: 1; }
}
.cal-cell.empty-day { visibility: hidden; }
.cal-cell.future { border-style: dashed; color: var(--text-secondary); }
.cal-cell.is-today {
  border-color: var(--accent);
  border-width: 1.5px;
  font-weight: 700;
  color: var(--accent);
}
.cal-cell.is-today.filled { color: var(--text-primary); }
.cal-cell.is-today::after {
  content: "";
  position: absolute;
  bottom: 3px;
  left: 50%;
  width: 4px; height: 4px;
  border-radius: 50%;
  background: var(--accent);
  transform: translateX(-50%);
}

.internal-tabs {
  display: flex; gap: 0.4rem;
  background: var(--bg-elevated);
  border-radius: var(--radius-pill);
  padding: 4px;
  margin-bottom: 1rem;
}
.internal-tab {
  flex: 1; text-align: center;
  padding: 0.5rem 0.6rem;
  border-radius: var(--radius-pill);
  font-size: 0.9rem; font-weight: 600;
  color: var(--text-secondary);
  min-height: 36px;
}
.internal-tab.active { background: var(--accent); color: #1B1B1F; }

/* Séance en cours — épuré */
.session-block-view {
  display: flex; flex-direction: column; align-items: center;
  padding: 1.5rem 0;
  text-align: center;
}
.session-block-view .ex-name { font-size: 1.375rem; font-weight: 600; margin-bottom: 0.3rem; }
.session-block-view .ex-meta { color: var(--text-secondary); margin-bottom: 1.4rem; }
.big-number { font-family: var(--font-mono); font-weight: 700; font-size: 3rem; line-height: 1; }

.set-row {
  display: flex; align-items: center; justify-content: space-between;
  gap: 0.6rem;
  padding: 0.9rem;
  background: var(--bg-elevated);
  border-radius: var(--radius-card);
  margin-bottom: 0.6rem;
}
.set-actions { display: flex; gap: 0.4rem; }
.set-action-btn {
  min-width: 44px; min-height: 44px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--separator);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.1rem;
}
.set-action-btn.success.selected { background: var(--status-done); border-color: transparent; }
.set-action-btn.fail.selected { background: var(--status-missed); border-color: transparent; }
.set-action-btn.skip.selected { background: var(--status-partial); border-color: transparent; }
.set-action-btn.pop { animation: setPop 200ms var(--ease-standard); }
@keyframes setPop { 0% { transform: scale(1); } 50% { transform: scale(1.2); } 100% { transform: scale(1); } }

/* Anneau minuteur — élément signature, section 17.4 */
.timer-sheet-body { display: flex; flex-direction: column; align-items: center; padding: 1rem 0 0.5rem 0; }
.timer-ring-wrap { position: relative; width: 220px; height: 220px; }
.timer-ring-wrap.pulse { animation: timerPulse 1s var(--ease-standard) infinite; }
@keyframes timerPulse { 0%,100% { transform: scale(1);} 50% { transform: scale(1.05);} }
.timer-ring-svg { width: 100%; height: 100%; }
.timer-ring-track { fill: none; stroke: var(--separator); stroke-width: 4; }
.timer-ring-progress { fill: none; stroke: var(--status-done); stroke-width: 8; stroke-linecap: round; transition: stroke 400ms var(--ease-standard); }
.timer-ring-tick { stroke: var(--text-secondary); opacity: 0.5; }
.timer-ring-center { position: absolute; inset: 0; display: flex; align-items: center; justify-content: center; flex-direction: column; }
.timer-flash { animation: timerFlash 400ms var(--ease-standard); }
@keyframes timerFlash { 0% { filter: brightness(1); } 30% { filter: brightness(1.8); } 100% { filter: brightness(1); } }
.timer-controls { display: flex; gap: 0.7rem; margin-top: 1.3rem; }

/* Récap fin de séance */
.record-flash-card {
  position: relative; overflow: hidden;
  animation: recordEnter var(--duration-standard) var(--ease-standard);
}
@keyframes recordEnter { 0% { transform: scale(0.9); opacity: 0; } 60% { transform: scale(1.05); } 100% { transform: scale(1); opacity: 1; } }
.record-flash-card::after {
  content: "";
  position: absolute; top: 0; left: -60%; width: 40%; height: 100%;
  background: linear-gradient(100deg, transparent, rgba(255,255,255,0.55), transparent);
  animation: recordSweep 1100ms ease-out 200ms;
}
@keyframes recordSweep { to { left: 130%; } }

/* Feuilles modales (bottom sheet) */
.sheet-backdrop {
  position: fixed; inset: 0; background: rgba(0,0,0,0.35);
  -webkit-backdrop-filter: blur(4px); backdrop-filter: blur(4px);
  z-index: 90;
  animation: fadeIn var(--duration-sheet) var(--ease-standard);
}
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
.sheet {
  position: fixed; left: 0; right: 0; bottom: 0;
  max-height: 88dvh; overflow-y: auto;
  background: rgba(var(--bg-primary-rgb), 0.86);
  -webkit-backdrop-filter: blur(24px) saturate(1.6);
  backdrop-filter: blur(24px) saturate(1.6);
  border-radius: var(--radius-sheet) var(--radius-sheet) 0 0;
  border-top: 0.5px solid rgba(255,255,255,0.3);
  padding: 0.6rem 1.2rem calc(1.6rem + env(safe-area-inset-bottom)) 1.2rem;
  z-index: 91;
  animation: sheetUp var(--duration-sheet) var(--ease-standard);
}
@media (prefers-reduced-transparency: reduce) {
  .sheet { background: var(--bg-elevated); -webkit-backdrop-filter: none; backdrop-filter: none; }
}
@keyframes sheetUp { from { transform: translateY(100%); } to { transform: translateY(0); } }
.sheet-handle { width: 36px; height: 5px; border-radius: 3px; background: var(--separator); margin: 0.5rem auto 1rem auto; }

/* Nav en profondeur (transitions d'écran) */
.content.enter { animation: screenSlideIn var(--duration-standard) var(--ease-standard); }
@keyframes screenSlideIn { from { transform: translateX(16px); opacity: 0.4; } to { transform: translateX(0); opacity: 1; } }

@media (prefers-reduced-motion: reduce) {
  .content.enter { animation: fadeIn var(--duration-standard) linear; }
  .cal-cell.filled { animation: fadeIn var(--duration-standard) linear; }
  .tab-btn.active .tab-icon, .set-action-btn.pop, .timer-ring-wrap.pulse, .record-flash-card, .record-flash-card::after {
    animation: none !important;
  }
  .sheet { animation: fadeIn var(--duration-sheet) linear; }
}

/* Toast */
.toast {
  position: fixed; left: 50%; bottom: calc(140px + env(safe-area-inset-bottom));
  transform: translateX(-50%);
  background: var(--text-primary);
  color: var(--bg-primary);
  padding: 0.6rem 1.1rem;
  border-radius: var(--radius-pill);
  font-size: 0.9rem;
  z-index: 200;
  animation: fadeIn 200ms var(--ease-standard);
}

/* Onboarding */
.onboarding-wrap { display: flex; flex-direction: column; min-height: 90dvh; justify-content: center; text-align: center; padding: 1rem; }
.onboarding-wrap .large-title { margin-bottom: 0.5rem; }

/* Swipe actions (historique / bibliothèque) */
.swipe-row { position: relative; overflow: hidden; }
.swipe-actions { position: absolute; right: 0; top: 0; bottom: 0; display: flex; }
.swipe-actions button { padding: 0 1rem; font-size: 0.85rem; font-weight: 600; }
.swipe-actions .edit-a { background: var(--status-partial); color: #1B1B1F; }
.swipe-actions .del-a { background: #C97C88; color: #fff; }

hr.sep { border: none; border-top: 1px solid var(--separator); margin: 1rem 0; }

.settings-group { margin-bottom: 1.6rem; }
.settings-row {
  display: flex; align-items: center; justify-content: space-between;
  min-height: 44px; padding: 0.6rem 0;
  border-bottom: 1px solid var(--separator);
}
.settings-row:last-child { border-bottom: none; }

.segmented { display: flex; background: var(--bg-elevated); border-radius: var(--radius-pill); padding: 3px; border: 1px solid var(--separator); }
.segmented button { flex: 1; padding: 0.4rem; border-radius: var(--radius-pill); font-size: 0.85rem; font-weight: 600; color: var(--text-secondary); min-height: 36px; }
.segmented button.active { background: var(--accent); color: #1B1B1F; }

.toggle {
  width: 46px; height: 28px; border-radius: 14px; background: var(--separator);
  position: relative; transition: background var(--duration-standard) var(--ease-standard);
  flex-shrink: 0;
}
.toggle.on { background: var(--accent); }
.toggle::after {
  content: ""; position: absolute; top: 2px; left: 2px; width: 24px; height: 24px;
  border-radius: 50%; background: #fff; transition: transform var(--duration-standard) var(--ease-standard);
  box-shadow: 0 1px 3px rgba(0,0,0,0.25);
}
.toggle.on::after { transform: translateX(18px); }

.simple-chart { width: 100%; height: 160px; }

a.link-plain { color: var(--accent); text-decoration: none; font-weight: 600; }