/* ==========================================================================
   ResumeCI — Thème Motion (collège, lycée, université) — body.motion-ui
   Palette réduite : neutres ardoise + UN seul accent indigo (vert/rouge gardés
   uniquement pour succès/erreur). Contraste texte renforcé.
   Animations uniquement en transform/opacity (GPU) ; prefers-reduced-motion respecté.
   ========================================================================== */
body.motion-ui {
  --bg: #f5f6fa;
  --bg-card: #ffffff;
  --bg-card-hover: #f8f9fc;
  --text: #0f172a;
  --text-muted: #334155;
  --text-dim: #52607a;
  --border: #e3e6ee;
  --radius: 16px;
  --radius-sm: 12px;
  --shadow-sm: 0 1px 2px rgba(15, 23, 42, .06);
  --shadow: 0 10px 28px -10px rgba(15, 23, 42, .18);
  --shadow-lg: 0 22px 44px -14px rgba(79, 70, 229, .32);
  --ease-out: cubic-bezier(.16, 1, .3, 1);
  --ease-spring: cubic-bezier(.34, 1.56, .64, 1);
  --dur-fast: .2s;
  --dur: .4s;
  --dur-slow: .75s;
  --transition: transform var(--dur) var(--ease-out), box-shadow var(--dur) var(--ease-out),
    border-color var(--dur-fast) ease, background-color var(--dur-fast) ease, color var(--dur-fast) ease;
  letter-spacing: -.005em;
  -webkit-font-smoothing: antialiased;
}
html { scroll-behavior: smooth; }

/* ---------- Keyframes ---------- */
@keyframes miViewIn {
  0% { opacity: 0; transform: translate3d(0, 28px, 0) scale(.98); filter: blur(6px); }
  60% { filter: blur(0); }
  100% { opacity: 1; transform: none; filter: none; }
}
@keyframes miRise {
  0% { opacity: 0; transform: translate3d(0, 34px, 0) scale(.94); }
  100% { opacity: 1; transform: none; }
}
@keyframes miPop {
  0% { opacity: 0; transform: scale(.4) rotate(-12deg); }
  70% { opacity: 1; transform: scale(1.08) rotate(3deg); }
  100% { transform: none; }
}
@keyframes miFloat { 0%, 100% { transform: translate3d(0, 0, 0); } 50% { transform: translate3d(0, -7px, 0); } }
@keyframes miShimmer { to { background-position: -200% 0; } }
@keyframes miRipple { from { transform: scale(0); opacity: .35; } to { transform: scale(1); opacity: 0; } }
@keyframes miSlideIn { from { opacity: 0; transform: translate3d(-18px, 0, 0); } to { opacity: 1; transform: none; } }
@keyframes miDrop { from { opacity: 0; transform: translate3d(0, -14px, 0); } to { opacity: 1; transform: none; } }
@keyframes miPulseRing {
  0% { box-shadow: 0 0 0 0 rgba(99, 102, 241, .45); }
  100% { box-shadow: 0 0 0 14px rgba(99, 102, 241, 0); }
}
@keyframes miSpin { to { transform: rotate(360deg); } }

/* ---------- Transition de vue ---------- */
body.motion-ui .content.uni-enter > * { animation: miViewIn var(--dur-slow) var(--ease-out) both; }

/* ---------- Révélation au défilement (cascade) ---------- */
body.motion-ui .mi {
  opacity: 0;
  transform: translate3d(0, 34px, 0) scale(.96);
  transition: opacity .7s var(--ease-out), transform .8s var(--ease-out),
    box-shadow var(--dur) var(--ease-out), border-color var(--dur-fast) ease;
  transition-delay: var(--mi-d, 0ms), var(--mi-d, 0ms), 0s, 0s;
}
body.motion-ui .mi.mi-in { opacity: 1; transform: none; }
body.motion-ui .mi.mi-in:hover { transition-delay: 0s; }

/* ---------- Onde au clic ---------- */
.mi-ripple {
  position: absolute;
  border-radius: 50%;
  background: currentColor;
  pointer-events: none;
  animation: miRipple .65s var(--ease-out, ease-out) forwards;
  z-index: 0;
}

/* ---------- Topbar ---------- */
body.motion-ui .topbar {
  background: rgba(255, 255, 255, .8);
  -webkit-backdrop-filter: saturate(180%) blur(16px);
  backdrop-filter: saturate(180%) blur(16px);
  border-bottom-color: rgba(227, 230, 238, .85);
  box-shadow: none;
  animation: miDrop .6s var(--ease-out) both;
}
body.motion-ui #breadcrumb > * { animation: miSlideIn .5s var(--ease-out) both; }
body.motion-ui #breadcrumb > *:nth-child(2) { animation-delay: .05s; }
body.motion-ui #breadcrumb > *:nth-child(3) { animation-delay: .1s; }
body.motion-ui #breadcrumb > *:nth-child(n+4) { animation-delay: .15s; }

/* ---------- Sidebar ---------- */
body.motion-ui .sidebar-header .logo {
  background: linear-gradient(135deg, #4f46e5, #6366f1);
  box-shadow: 0 6px 18px -4px rgba(99, 102, 241, .65);
  animation: miPop .8s var(--ease-spring) both, miFloat 4s ease-in-out 1s infinite;
}
body.motion-ui .nav-class-header,
body.motion-ui .nav-subject-header,
body.motion-ui .nav-lesson {
  border-radius: 10px;
  transition: background-color var(--dur-fast) ease, color var(--dur-fast) ease, transform var(--dur) var(--ease-spring);
}
body.motion-ui .nav-class-header { color: var(--sidebar-text); }
body.motion-ui .nav-subject-header { color: var(--sidebar-muted); }
body.motion-ui .nav-lesson { color: var(--sidebar-dim); }
body.motion-ui .nav-class-header:hover,
body.motion-ui .nav-subject-header:hover,
body.motion-ui .nav-lesson:hover { transform: translateX(5px); background: var(--sidebar-hover); color: var(--sidebar-text); }
body.motion-ui .nav-class-header .badge { background: var(--accent-bg); color: var(--accent); }
body.motion-ui .chevron { transition: transform .45s var(--ease-spring) !important; }

/* Accordéons animés */
body.motion-ui .nav-subjects,
body.motion-ui .nav-lessons {
  display: block;
  max-height: 0;
  overflow: hidden;
  opacity: 0;
  transform: translate3d(0, -8px, 0);
  transition: max-height .55s var(--ease-out), opacity .35s ease, transform .45s var(--ease-out);
}
body.motion-ui .nav-class.open > .nav-subjects { max-height: 5000px; opacity: 1; transform: none; }
body.motion-ui .nav-subject.open > .nav-lessons { max-height: 1500px; opacity: 1; transform: none; }
body.motion-ui .nav-class.open > .nav-subjects > .nav-subject,
body.motion-ui .nav-subject.open > .nav-lessons > .nav-lesson { animation: miSlideIn .45s var(--ease-out) both; }
body.motion-ui .nav-subject.open > .nav-lessons > .nav-lesson:nth-child(2),
body.motion-ui .nav-class.open > .nav-subjects > .nav-subject:nth-child(2) { animation-delay: .03s; }
body.motion-ui .nav-subject.open > .nav-lessons > .nav-lesson:nth-child(3),
body.motion-ui .nav-class.open > .nav-subjects > .nav-subject:nth-child(3) { animation-delay: .06s; }
body.motion-ui .nav-subject.open > .nav-lessons > .nav-lesson:nth-child(4),
body.motion-ui .nav-class.open > .nav-subjects > .nav-subject:nth-child(4) { animation-delay: .09s; }
body.motion-ui .nav-subject.open > .nav-lessons > .nav-lesson:nth-child(5),
body.motion-ui .nav-class.open > .nav-subjects > .nav-subject:nth-child(5) { animation-delay: .12s; }
body.motion-ui .nav-subject.open > .nav-lessons > .nav-lesson:nth-child(n+6),
body.motion-ui .nav-class.open > .nav-subjects > .nav-subject:nth-child(n+6) { animation-delay: .15s; }
body.motion-ui .nav-lesson.active {
  background: var(--accent-bg);
  color: var(--accent);
  box-shadow: inset 3px 0 0 var(--accent);
}

/* ---------- Héros ---------- */
body.motion-ui .dashboard-hero { padding: 40px 0 30px; }
body.motion-ui .dashboard-hero .hero-icon {
  background: linear-gradient(135deg, #4f46e5, #6366f1);
  border-radius: 24px;
  box-shadow: 0 16px 34px -10px rgba(79, 70, 229, .55);
  animation: miPop .9s var(--ease-spring) both, miFloat 4.5s ease-in-out 1s infinite;
}
body.motion-ui .dashboard-hero h2 {
  font-size: 30px;
  font-weight: 800;
  letter-spacing: -.025em;
  color: var(--text);
  background: linear-gradient(90deg, var(--text) 0%, var(--text) 35%, var(--accent) 50%, var(--text) 65%, var(--text) 100%);
  background-size: 200% 100%;
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  animation: miRise .8s var(--ease-out) .1s both, miShimmer 5s linear 1s infinite;
}
body.motion-ui .dashboard-hero p { color: var(--text-muted); font-weight: 500; animation: miRise .8s var(--ease-out) .2s both; }

/* ---------- Pastilles de couleur : une seule teinte ---------- */
body.motion-ui .color-blue,
body.motion-ui .color-green,
body.motion-ui .color-orange,
body.motion-ui .color-purple { background: var(--accent-bg) !important; color: var(--accent) !important; }
body.motion-ui .stat-number { color: var(--text) !important; }
body.motion-ui .subject-tag,
body.motion-ui .class-card .subject-list > * {
  background: var(--bg-card-hover) !important;
  color: var(--text-muted) !important;
  border: 1px solid var(--border) !important;
}

/* ---------- Cartes ---------- */
body.motion-ui .stat-card,
body.motion-ui .class-card,
body.motion-ui .lesson-card,
body.motion-ui .tool-card {
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--bg-card);
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
  color: var(--text);
}
body.motion-ui .stat-card:hover,
body.motion-ui .class-card:hover,
body.motion-ui .tool-card:hover {
  transform: translate3d(0, -6px, 0) scale(1.015);
  border-color: var(--accent);
  box-shadow: var(--shadow-lg);
}
body.motion-ui :is(.lesson-card, .class-card, .tool-card)::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(105deg, transparent 35%, rgba(99, 102, 241, .1) 50%, transparent 65%);
  transform: translateX(-110%);
  transition: transform .8s var(--ease-out);
  pointer-events: none;
}
body.motion-ui :is(.lesson-card, .class-card, .tool-card):hover::after { transform: translateX(110%); }
body.motion-ui .lesson-card { border-radius: var(--radius-sm); }
body.motion-ui .lesson-card:hover {
  transform: translate3d(0, -4px, 0);
  border-color: var(--accent);
  box-shadow: var(--shadow);
}
body.motion-ui .lesson-card .lesson-icon,
body.motion-ui .stat-card .stat-icon,
body.motion-ui .tool-card .tool-icon { border-radius: 11px; transition: transform .5s var(--ease-spring); }
body.motion-ui .lesson-card:hover .lesson-icon,
body.motion-ui .stat-card:hover .stat-icon,
body.motion-ui .tool-card:hover .tool-icon { transform: scale(1.15) rotate(-8deg); }
body.motion-ui .lesson-card .lesson-name { font-weight: 600; font-size: 13px; color: var(--text); }
body.motion-ui .lesson-card .lesson-meta { color: var(--text-dim); }
body.motion-ui .class-card h3 { color: var(--text); }
body.motion-ui :is(.lesson-card, .class-card, .tool-card, .stat-card):active { transform: scale(.97); transition-duration: .12s; }
body.motion-ui .class-card > *, body.motion-ui .lesson-card > *, body.motion-ui .tool-card > * { position: relative; z-index: 1; }

/* ---------- Boutons ---------- */
body.motion-ui .btn {
  border-radius: 11px;
  position: relative;
  overflow: hidden;
  transition: transform var(--dur-fast) var(--ease-spring), box-shadow var(--dur) var(--ease-out), background-color var(--dur-fast) ease;
}
body.motion-ui .btn:hover { transform: translate3d(0, -2px, 0); box-shadow: var(--shadow); }
body.motion-ui .btn:active { transform: scale(.95); }
body.motion-ui .btn i { transition: transform .4s var(--ease-spring); }
body.motion-ui .btn:hover i { transform: scale(1.18); }
body.motion-ui .fav-btn.active { animation: miPulseRing .8s ease-out; }

/* ---------- Fiche ---------- */
body.motion-ui .fiche-view { animation: miViewIn var(--dur-slow) var(--ease-out) both; color: var(--text); }
body.motion-ui .fiche-view p, body.motion-ui .fiche-view li { color: var(--text-muted); line-height: 1.75; }

/* ---------- Modales ---------- */
body.motion-ui .show > :is(.modal, .pm-modal, .modal-card, [class*="modal-box"], [class*="-modal"]) {
  animation: miPop .55s var(--ease-spring) both;
}

/* ---------- Chargement ---------- */
body.motion-ui .loading { animation: miViewIn .4s ease both; color: var(--text-dim); }
body.motion-ui .loading .spinner {
  border-top-color: var(--accent);
  animation: miSpin .7s cubic-bezier(.5, .1, .5, .9) infinite;
}

/* ---------- Défilement doux ---------- */
/* Pas d'overscroll-behavior sur .content : sur mobile c'est la page qui défile,
   « contain » bloquerait le défilement tactile des fiches. */
body.motion-ui .sidebar-nav,
body.motion-ui #sidebarNav { -webkit-overflow-scrolling: touch; overscroll-behavior: contain; }

/* ---------- Focus clavier ---------- */
body.motion-ui :focus-visible { outline: 2px solid var(--accent-light); outline-offset: 2px; border-radius: 8px; }

/* ---------- Accessibilité : réduction des animations ---------- */
@media (prefers-reduced-motion: reduce) {
  body.motion-ui *,
  body.motion-ui *::before,
  body.motion-ui *::after {
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
    transition-delay: 0s !important;
  }
  body.motion-ui .mi { opacity: 1; transform: none; }
}