/* ============================================================
   VARIABLES & RESET
   ============================================================ */
:root {
  --primary:          #6366f1;
  --primary-alt:      #818cf8;
  --primary-glow:     rgba(99, 102, 241, 0.4);
  --primary-gradient: linear-gradient(135deg, #4338ca, #6366f1);
  --bg-dark:          #070b14;
  --bg-sidebar:       #0c1323;
  --bg-card:          rgba(30, 41, 59, 0.6);
  --text-white:       #f8fafc;
  --text-muted:       #94a3b8;
  --danger:           #f43f5e;
  --success:          #10b981;
  --expert:           #fbbf24;
  --glass:            rgba(255, 255, 255, 0.03);
  --glass-border:     rgba(255, 255, 255, 0.08);
  --ped-color:        #ff9800;
  --muted:            #94a3b8;

  --it-purple:   #a855f7;
  --it-purple-2: #7c3aed;

  --shadow-1: 0 10px 26px rgba(0, 0, 0, 0.28);
  --shadow-2: 0 16px 44px rgba(0, 0, 0, 0.38);
  --shadow-3: 0 24px 70px rgba(0, 0, 0, 0.52);

  --ring-soft:   0 0 0 4px rgba(99, 102, 241, 0.14);
  --ring-strong: 0 0 0 6px rgba(99, 102, 241, 0.18);

  --radius-xs:  10px;
  --radius-sm:  14px;
  --radius-md:  18px;
  --radius-lg:  24px;
  --radius-xl:  30px;
  --radius-2xl: 40px;

  --ease:  cubic-bezier(0.2, 0.8, 0.2, 1);
  --dur-1: 140ms;
  --dur-2: 260ms;
  --dur-3: 420ms;
}

* { box-sizing: border-box; outline: none; }

html, body { height: 100%; }

body {
  margin: 0;
  font-family: "Space Grotesk", sans-serif;
  line-height: 1.45;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  background:
    radial-gradient(ellipse 1200px 600px at 20% -10%,  rgba(99,102,241,0.15), transparent 55%),
    radial-gradient(ellipse 900px 500px at 90% 10%,    rgba(168,85,247,0.12), transparent 55%),
    radial-gradient(ellipse 900px 500px at 40% 110%,   rgba(14,165,233,0.10), transparent 55%),
    var(--bg-dark);
  color: var(--text-white);
  overflow: hidden;
}

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

button, input, textarea, select { font: inherit; }

.hidden { display: none !important; }

/* ============================================================
   TRANSITIONS GLOBALES
   ============================================================ */
button, a, input, textarea, select, .card-item, .nav-item,
.grade-badge, .mini-badge, .pending-chip, .dash-card, .kpi,
.stat-card, .info-item, .time-badge, .drawer-inner, .profile-card-full,
.admin-card, .rules-card, .it-glass, .q-row, .abs-cal-cell {
  transition:
    transform        var(--dur-2) var(--ease),
    box-shadow       var(--dur-2) var(--ease),
    background-color var(--dur-2) var(--ease),
    border-color     var(--dur-2) var(--ease),
    color            var(--dur-2) var(--ease),
    opacity          var(--dur-2) var(--ease),
    filter           var(--dur-2) var(--ease);
}

select {
  color-scheme: dark;
  background-color: rgba(15, 23, 42, 0.75);
  border: 1px solid rgba(255, 255, 255, 0.10);
  color: #fff;
  border-radius: 15px;
  padding: 14px;
}

select option, select optgroup {
  background-color: #0f172a;
  color: #f8fafc;
}

select option:checked {
  background-color: rgba(99, 102, 241, 0.35);
  color: #fff;
}

select:focus {
  outline: none;
  border-color: rgba(99, 102, 241, 0.8);
  box-shadow: 0 0 0 4px rgba(99, 102, 241, 0.14);
}


/* ============================================================
   ANIMATIONS
   ============================================================ */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(30px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes fadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}

@keyframes blobFloat {
  0%, 100% { transform: translate(0,   0)   scale(1); }
  33%       { transform: translate(40px, -60px) scale(1.1); }
  66%       { transform: translate(-30px, 30px) scale(0.9); }
}

@keyframes pulseGold {
  0%   { box-shadow: 0 0 0 0   rgba(251, 191, 36, 0.2); }
  70%  { box-shadow: 0 0 0 15px rgba(251, 191, 36, 0); }
  100% { box-shadow: 0 0 0 0   rgba(251, 191, 36, 0); }
}

@keyframes pulseGreen {
  0%   { box-shadow: 0 0 0 0   rgba(16, 185, 129, 0.4); }
  70%  { box-shadow: 0 0 0 10px rgba(16, 185, 129, 0); }
  100% { box-shadow: 0 0 0 0   rgba(16, 185, 129, 0); }
}

@keyframes pulseBlue {
  0%   { box-shadow: 0 0 0 0   rgba(14, 165, 233, 0.35); }
  70%  { box-shadow: 0 0 0 10px rgba(14, 165, 233, 0); }
  100% { box-shadow: 0 0 0 0   rgba(14, 165, 233, 0); }
}

@keyframes flashConfirm {
  0%   { background: rgba(99, 102, 241, 0.2); transform: scale(0.98); }
  100% { background: rgba(30, 41, 59, 0.45);  transform: scale(1); }
}

@keyframes pendingShimmer {
  0%   { left: -70%; }
  100% { left: 120%; }
}

@keyframes shimmerSwipe {
  0%   { left: -100%; }
  100% { left: 200%; }
}

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

@keyframes slideInRight {
  from { transform: translateX(30px); opacity: 0; }
  to   { transform: translateX(0);    opacity: 1; }
}

.fade-in-up { animation: fadeInUp 0.7s var(--ease) forwards; }
.fade-in    { animation: fadeIn   0.5s var(--ease) both; }

.tab-pane:not(.hidden) {
  animation: fadeInUp 0.35s var(--ease) both;
}


/* ============================================================
   SCROLLBAR
   ============================================================ */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: rgba(0,0,0,0.12); border-radius: 10px; }
::-webkit-scrollbar-thumb {
  background: linear-gradient(180deg, rgba(99,102,241,0.5), rgba(168,85,247,0.4));
  border-radius: 10px;
}
::-webkit-scrollbar-thumb:hover {
  background: linear-gradient(180deg, rgba(99,102,241,0.75), rgba(168,85,247,0.65));
}


/* ============================================================
   ACCESSIBILITÉ
   ============================================================ */
:focus-visible {
  outline: 2px solid rgba(99, 102, 241, 0.7);
  outline-offset: 3px;
}

/* ============================================================
   SKELETONS
   ============================================================ */
@keyframes shimmer {
  0%   { background-position: -400px 0; }
  100% { background-position:  400px 0; }
}

.skeleton {
  background: linear-gradient(90deg,
    rgba(255,255,255,0.04) 25%,
    rgba(255,255,255,0.09) 50%,
    rgba(255,255,255,0.04) 75%);
  background-size: 800px 100%;
  animation: shimmer 1.4s infinite linear;
  border-radius: 8px;
}

.skeleton-card {
  background: rgba(255,255,255,0.03);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: 18px;
  padding: 24px 16px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  min-height: 140px;
}

.skeleton-row {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 16px;
  border-radius: 14px;
  background: rgba(255,255,255,0.02);
  border: 1px solid rgba(255,255,255,0.05);
}

.skeleton-avatar {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  flex-shrink: 0;
}

.skeleton-avatar-sm {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  flex-shrink: 0;
}

.skeleton-line {
  height: 12px;
  border-radius: 6px;
}

/* ============================================================
   TAB TRANSITION
   ============================================================ */
@keyframes tabFadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to   { opacity: 1; transform: translateY(0); }
}

.tab-entering {
  animation: tabFadeIn 220ms cubic-bezier(0.2, 0.8, 0.2, 1) both;
}