/* ============================================================
   LMS CFA Pro — Design System Principal
   Police : Inter + Poppins
   Palette : Indigo/Violet/Ambre
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Poppins:wght@600;700;800&display=swap');

/* ── Variables ─────────────────────────────────────────────── */
:root {
  --primary:        #6366f1;
  --primary-dark:   #4f46e5;
  --primary-light:  #818cf8;
  --secondary:      #8b5cf6;
  --accent:         #f59e0b;
  --accent-dark:    #d97706;
  --success:        #10b981;
  --danger:         #ef4444;
  --warning:        #f59e0b;
  --info:           #0ea5e9;

  --bg:             #0d1117;
  --bg-surface:     #161b22;
  --bg-elevated:    #1c2230;
  --bg-card:        #1e2535;
  --bg-hover:       #252d3d;

  --border:         rgba(255,255,255,0.08);
  --border-light:   rgba(255,255,255,0.05);

  --text:           #e2e8f0;
  --text-muted:     #94a3b8;
  --text-faint:     #4b5563;

  --radius-sm:      6px;
  --radius:         10px;
  --radius-lg:      16px;
  --radius-xl:      24px;
  --radius-full:    9999px;

  --shadow-sm:      0 1px 3px rgba(0,0,0,.4);
  --shadow:         0 4px 16px rgba(0,0,0,.4);
  --shadow-lg:      0 8px 32px rgba(0,0,0,.5);
  --shadow-glow:    0 0 20px rgba(99,102,241,.25);

  --transition:     .2s ease;
  --font-body:      'Inter', system-ui, sans-serif;
  --font-heading:   'Poppins', 'Inter', sans-serif;

  --sidebar-w:      260px;
  --topbar-h:       64px;
}

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

body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--text);
  font-size: 15px;
  line-height: 1.6;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--primary-light); text-decoration: none; transition: color var(--transition); }
a:hover { color: white; }
img { max-width: 100%; display: block; }
ul { list-style: none; }
button { cursor: pointer; font-family: inherit; }
input, textarea, select { font-family: inherit; }

h1,h2,h3,h4,h5,h6 { font-family: var(--font-heading); font-weight: 700; line-height: 1.25; }

/* ── Scrollbar ─────────────────────────────────────────────── */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--bg-hover); border-radius: 99px; }
::-webkit-scrollbar-thumb:hover { background: #374151; }

/* ── Layout App ────────────────────────────────────────────── */
.app-layout { display: flex; min-height: 100vh; }

.sidebar {
  width: var(--sidebar-w);
  background: var(--bg-surface);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0; left: 0; bottom: 0;
  z-index: 100;
  transition: transform var(--transition);
}

.sidebar-header {
  padding: 20px 24px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 12px;
  height: var(--topbar-h);
}

.sidebar-logo {
  width: 36px; height: 36px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  border-radius: var(--radius);
  display: flex; align-items: center; justify-content: center;
  font-size: 18px; color: white; font-weight: 800;
  flex-shrink: 0;
}

.sidebar-brand { font-family: var(--font-heading); font-size: 16px; font-weight: 700; color: white; line-height: 1.2; }
.sidebar-brand span { display: block; font-size: 11px; font-weight: 400; color: var(--text-muted); }

.sidebar-nav { flex: 1; padding: 16px 12px; overflow-y: auto; }

.nav-section-title {
  font-size: 10px; font-weight: 600; letter-spacing: .1em;
  text-transform: uppercase; color: var(--text-faint);
  padding: 8px 12px 4px;
  margin-top: 8px;
}

.nav-link {
  display: flex; align-items: center; gap: 10px;
  padding: 9px 12px; border-radius: var(--radius);
  color: var(--text-muted); font-size: 14px; font-weight: 500;
  transition: all var(--transition);
  position: relative;
}
.nav-link:hover { background: var(--bg-hover); color: white; }
.nav-link.active {
  background: linear-gradient(135deg, rgba(99,102,241,.2), rgba(139,92,246,.1));
  color: white;
  border: 1px solid rgba(99,102,241,.3);
}
.nav-link.active::before {
  content: '';
  position: absolute; left: 0; top: 50%; transform: translateY(-50%);
  width: 3px; height: 20px;
  background: linear-gradient(to bottom, var(--primary), var(--secondary));
  border-radius: 0 3px 3px 0;
}
.nav-link i { width: 18px; text-align: center; font-size: 15px; }
.nav-badge {
  margin-left: auto; background: var(--primary);
  color: white; font-size: 10px; font-weight: 700;
  padding: 1px 7px; border-radius: var(--radius-full);
  min-width: 18px; text-align: center;
}

.sidebar-footer {
  padding: 16px 12px;
  border-top: 1px solid var(--border);
}

/* ── Topbar ────────────────────────────────────────────────── */
.main-content { margin-left: var(--sidebar-w); flex: 1; display: flex; flex-direction: column; min-height: 100vh; }

.topbar {
  height: var(--topbar-h);
  background: var(--bg-surface);
  border-bottom: 1px solid var(--border);
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 24px;
  position: sticky; top: 0; z-index: 50;
}

.topbar-left { display: flex; align-items: center; gap: 16px; }
.topbar-title { font-family: var(--font-heading); font-size: 18px; font-weight: 700; color: white; }
.breadcrumb { display: flex; align-items: center; gap: 6px; font-size: 13px; color: var(--text-muted); }
.breadcrumb a { color: var(--text-muted); }
.breadcrumb a:hover { color: white; }
.breadcrumb .sep { opacity: 0.4; }

.topbar-actions { display: flex; align-items: center; gap: 8px; }

.btn-icon {
  width: 38px; height: 38px;
  background: var(--bg-elevated); border: 1px solid var(--border);
  border-radius: var(--radius);
  display: flex; align-items: center; justify-content: center;
  color: var(--text-muted); font-size: 16px;
  transition: all var(--transition); position: relative;
}
.btn-icon:hover { background: var(--bg-hover); color: white; }
.btn-icon .notif-dot {
  position: absolute; top: 7px; right: 7px;
  width: 8px; height: 8px;
  background: var(--danger); border-radius: 50%;
  border: 2px solid var(--bg-surface);
}

.user-menu-trigger {
  display: flex; align-items: center; gap: 10px;
  padding: 6px 12px 6px 6px;
  background: var(--bg-elevated); border: 1px solid var(--border);
  border-radius: var(--radius-full);
  cursor: pointer; transition: all var(--transition);
}
.user-menu-trigger:hover { background: var(--bg-hover); border-color: var(--primary); }
.user-menu-trigger .user-name { font-size: 13px; font-weight: 600; color: var(--text); }
.user-menu-trigger .user-role { font-size: 11px; color: var(--text-muted); }

/* ── Contenu Principal ─────────────────────────────────────── */
.page-content { flex: 1; padding: 28px 32px; overflow-y: auto; }

.page-header { margin-bottom: 28px; }
.page-header h1 { font-size: 26px; margin-bottom: 6px; }
.page-header p { color: var(--text-muted); font-size: 15px; }

/* ── Cards ─────────────────────────────────────────────────── */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: border-color var(--transition), box-shadow var(--transition);
}
.card:hover { border-color: rgba(99,102,241,.3); box-shadow: var(--shadow); }
.card-header {
  padding: 20px 24px 16px;
  border-bottom: 1px solid var(--border);
  display: flex; align-items: center; justify-content: space-between;
}
.card-title { font-size: 16px; font-weight: 700; color: white; }
.card-body { padding: 24px; }
.card-footer { padding: 16px 24px; border-top: 1px solid var(--border); background: rgba(0,0,0,.1); }

/* Stat Cards */
.stat-cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 16px; margin-bottom: 28px; }

.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 20px 24px;
  display: flex; align-items: flex-start; gap: 16px;
  transition: all var(--transition);
  position: relative; overflow: hidden;
}
.stat-card::after {
  content: '';
  position: absolute; bottom: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(to right, var(--card-color, var(--primary)), transparent);
}
.stat-card:hover { transform: translateY(-2px); box-shadow: var(--shadow); }

.stat-icon {
  width: 48px; height: 48px; border-radius: var(--radius);
  display: flex; align-items: center; justify-content: center;
  font-size: 22px; flex-shrink: 0;
  background: var(--card-color-bg, rgba(99,102,241,.15));
  color: var(--card-color, var(--primary));
}
.stat-label { font-size: 12px; color: var(--text-muted); font-weight: 500; text-transform: uppercase; letter-spacing: .05em; }
.stat-value { font-size: 28px; font-weight: 800; font-family: var(--font-heading); color: white; line-height: 1; margin: 4px 0; }
.stat-change { font-size: 12px; color: var(--success); }
.stat-change.negative { color: var(--danger); }

/* ── Boutons ───────────────────────────────────────────────── */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 9px 18px; border-radius: var(--radius);
  font-size: 14px; font-weight: 600; border: none;
  cursor: pointer; transition: all var(--transition);
  text-decoration: none; white-space: nowrap;
}
.btn:disabled { opacity: 0.5; cursor: not-allowed; }
.btn-sm { padding: 6px 12px; font-size: 12px; border-radius: var(--radius-sm); }
.btn-lg { padding: 12px 28px; font-size: 16px; border-radius: var(--radius); }

.btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: white; box-shadow: 0 2px 8px rgba(99,102,241,.4);
}
.btn-primary:hover { transform: translateY(-1px); box-shadow: 0 4px 16px rgba(99,102,241,.5); color: white; }

.btn-secondary {
  background: var(--bg-elevated); border: 1px solid var(--border); color: var(--text);
}
.btn-secondary:hover { background: var(--bg-hover); color: white; }

.btn-success {
  background: linear-gradient(135deg, #10b981, #059669); color: white;
  box-shadow: 0 2px 8px rgba(16,185,129,.4);
}
.btn-success:hover { transform: translateY(-1px); box-shadow: 0 4px 16px rgba(16,185,129,.5); color: white; }

.btn-danger {
  background: linear-gradient(135deg, #ef4444, #dc2626); color: white;
  box-shadow: 0 2px 8px rgba(239,68,68,.4);
}
.btn-danger:hover { transform: translateY(-1px); color: white; }

.btn-warning {
  background: linear-gradient(135deg, #f59e0b, #d97706); color: #0d1117;
}
.btn-warning:hover { transform: translateY(-1px); color: #0d1117; }

.btn-outline {
  background: transparent; border: 1px solid var(--border); color: var(--text-muted);
}
.btn-outline:hover { border-color: var(--primary); color: var(--primary); background: rgba(99,102,241,.08); }

.btn-ghost { background: transparent; color: var(--text-muted); }
.btn-ghost:hover { background: var(--bg-hover); color: white; }

/* ── Formulaires ───────────────────────────────────────────── */
.form-group { margin-bottom: 20px; }
.form-label { display: block; font-size: 13px; font-weight: 600; color: var(--text-muted); margin-bottom: 6px; text-transform: uppercase; letter-spacing: .05em; }
.form-label .required { color: var(--danger); margin-left: 3px; }

.form-control {
  width: 100%;
  background: var(--bg-elevated); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 10px 14px;
  color: var(--text); font-size: 14px;
  transition: all var(--transition);
}
.form-control:focus { outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px rgba(99,102,241,.15); background: var(--bg-card); }
.form-control::placeholder { color: var(--text-faint); }
.form-control:disabled { opacity: 0.5; cursor: not-allowed; }

select.form-control { cursor: pointer; }
textarea.form-control { resize: vertical; min-height: 100px; }

.form-hint { font-size: 12px; color: var(--text-muted); margin-top: 5px; }
.form-error { font-size: 12px; color: var(--danger); margin-top: 5px; }

.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-row-3 { grid-template-columns: 1fr 1fr 1fr; }

.input-group { position: relative; }
.input-group .form-control { padding-left: 40px; }
.input-group .input-icon { position: absolute; left: 12px; top: 50%; transform: translateY(-50%); color: var(--text-muted); font-size: 14px; pointer-events: none; }

.toggle {
  position: relative; display: inline-block; width: 44px; height: 24px;
}
.toggle input { opacity: 0; width: 0; height: 0; }
.toggle-slider {
  position: absolute; cursor: pointer; inset: 0;
  background: var(--bg-hover); border-radius: var(--radius-full);
  transition: .3s;
}
.toggle-slider::before {
  content: ''; position: absolute; width: 18px; height: 18px;
  left: 3px; bottom: 3px; background: white; border-radius: 50%;
  transition: .3s;
}
.toggle input:checked + .toggle-slider { background: var(--primary); }
.toggle input:checked + .toggle-slider::before { transform: translateX(20px); }

/* ── Tables ────────────────────────────────────────────────── */
.table-container { overflow-x: auto; }
.table {
  width: 100%; border-collapse: collapse; font-size: 14px;
}
.table th {
  padding: 12px 16px; text-align: left;
  font-size: 11px; font-weight: 700; letter-spacing: .07em; text-transform: uppercase;
  color: var(--text-muted); background: rgba(0,0,0,.2);
  border-bottom: 1px solid var(--border);
}
.table td {
  padding: 14px 16px; border-bottom: 1px solid var(--border-light);
  vertical-align: middle;
}
.table tr:hover td { background: rgba(255,255,255,.02); }
.table tr:last-child td { border-bottom: none; }

/* ── Badges / Pills ────────────────────────────────────────── */
.badge {
  display: inline-flex; align-items: center; gap: 4px;
  padding: 3px 10px; border-radius: var(--radius-full);
  font-size: 11px; font-weight: 700; letter-spacing: .03em; text-transform: uppercase;
  white-space: nowrap;
}
.badge-primary   { background: rgba(99,102,241,.2);  color: var(--primary-light); border: 1px solid rgba(99,102,241,.3); }
.badge-success   { background: rgba(16,185,129,.2);  color: #34d399; border: 1px solid rgba(16,185,129,.3); }
.badge-danger    { background: rgba(239,68,68,.2);   color: #f87171; border: 1px solid rgba(239,68,68,.3); }
.badge-warning   { background: rgba(245,158,11,.2);  color: #fbbf24; border: 1px solid rgba(245,158,11,.3); }
.badge-info      { background: rgba(14,165,233,.2);  color: #38bdf8; border: 1px solid rgba(14,165,233,.3); }
.badge-secondary { background: rgba(100,116,139,.2); color: #94a3b8; border: 1px solid rgba(100,116,139,.3); }
.badge-purple    { background: rgba(139,92,246,.2);  color: #c4b5fd; border: 1px solid rgba(139,92,246,.3); }

/* ── Alertes ───────────────────────────────────────────────── */
.alert {
  padding: 14px 18px; border-radius: var(--radius); margin-bottom: 16px;
  display: flex; align-items: flex-start; gap: 10px; font-size: 14px;
  border-left: 4px solid;
}
.alert-success { background: rgba(16,185,129,.1); border-color: var(--success); color: #34d399; }
.alert-error    { background: rgba(239,68,68,.1);  border-color: var(--danger);  color: #f87171; }
.alert-warning  { background: rgba(245,158,11,.1); border-color: var(--warning); color: #fbbf24; }
.alert-info     { background: rgba(14,165,233,.1); border-color: var(--info);    color: #38bdf8; }

/* ── Progress ──────────────────────────────────────────────── */
.progress-bar {
  height: 8px; background: var(--bg-elevated);
  border-radius: var(--radius-full); overflow: hidden;
}
.progress-fill {
  height: 100%; border-radius: var(--radius-full);
  background: linear-gradient(to right, var(--primary), var(--secondary));
  transition: width .5s ease;
}
.progress-fill.success { background: linear-gradient(to right, var(--success), #059669); }
.progress-fill.warning { background: linear-gradient(to right, var(--warning), var(--accent-dark)); }

/* ── Avatar ────────────────────────────────────────────────── */
.avatar {
  border-radius: 50%; object-fit: cover; flex-shrink: 0;
  display: flex; align-items: center; justify-content: center;
  font-weight: 700; font-family: var(--font-heading);
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: white; overflow: hidden;
}
.avatar-sm  { width: 32px; height: 32px; font-size: 12px; }
.avatar-md  { width: 42px; height: 42px; font-size: 15px; }
.avatar-lg  { width: 56px; height: 56px; font-size: 20px; }
.avatar-xl  { width: 80px; height: 80px; font-size: 28px; }
.avatar-xxl { width: 120px; height: 120px; font-size: 42px; }
.avatar img { width: 100%; height: 100%; object-fit: cover; }

.avatar-group { display: flex; }
.avatar-group .avatar { border: 2px solid var(--bg-surface); margin-left: -8px; }
.avatar-group .avatar:first-child { margin-left: 0; }

/* ── Modal ─────────────────────────────────────────────────── */
.modal-overlay {
  position: fixed; inset: 0; background: rgba(0,0,0,.7);
  z-index: 1000; display: flex; align-items: center; justify-content: center;
  padding: 20px; backdrop-filter: blur(4px);
  opacity: 0; pointer-events: none; transition: opacity .25s;
}
.modal-overlay.open { opacity: 1; pointer-events: auto; }

.modal {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius-xl); width: 100%; max-width: 580px;
  max-height: 90vh; overflow-y: auto;
  transform: scale(.95) translateY(20px);
  transition: transform .25s ease;
  box-shadow: var(--shadow-lg);
}
.modal-overlay.open .modal { transform: scale(1) translateY(0); }
.modal-lg { max-width: 860px; }
.modal-header { padding: 24px 28px 16px; border-bottom: 1px solid var(--border); display: flex; align-items: center; justify-content: space-between; }
.modal-title { font-size: 18px; font-weight: 700; }
.modal-close { background: none; border: none; color: var(--text-muted); font-size: 20px; transition: color var(--transition); }
.modal-close:hover { color: white; }
.modal-body { padding: 24px 28px; }
.modal-footer { padding: 16px 28px 24px; display: flex; gap: 10px; justify-content: flex-end; }

/* ── Dropdown ──────────────────────────────────────────────── */
.dropdown { position: relative; }
.dropdown-menu {
  position: absolute; right: 0; top: calc(100% + 8px);
  background: var(--bg-elevated); border: 1px solid var(--border);
  border-radius: var(--radius-lg); min-width: 200px;
  box-shadow: var(--shadow-lg); z-index: 200;
  opacity: 0; pointer-events: none; transform: translateY(-8px);
  transition: all .2s ease;
}
.dropdown-menu.open { opacity: 1; pointer-events: auto; transform: translateY(0); }
.dropdown-item {
  display: flex; align-items: center; gap: 10px;
  padding: 10px 16px; color: var(--text-muted); font-size: 14px;
  transition: all var(--transition);
}
.dropdown-item:hover { background: var(--bg-hover); color: white; }
.dropdown-item i { width: 16px; }
.dropdown-divider { height: 1px; background: var(--border); margin: 6px 0; }

/* ── Tabs ──────────────────────────────────────────────────── */
.tabs { display: flex; gap: 4px; background: var(--bg-elevated); padding: 4px; border-radius: var(--radius); margin-bottom: 24px; }
.tab-btn {
  flex: 1; padding: 8px 16px; border-radius: var(--radius-sm);
  background: none; border: none; color: var(--text-muted);
  font-size: 13px; font-weight: 600; transition: all var(--transition); cursor: pointer;
}
.tab-btn.active { background: var(--bg-card); color: white; box-shadow: var(--shadow-sm); }
.tab-pane { display: none; }
.tab-pane.active { display: block; }

/* ── Search ────────────────────────────────────────────────── */
.search-input {
  display: flex; align-items: center; gap: 8px;
  background: var(--bg-elevated); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 8px 14px;
  transition: all var(--transition);
}
.search-input:focus-within { border-color: var(--primary); box-shadow: 0 0 0 3px rgba(99,102,241,.1); }
.search-input i { color: var(--text-muted); }
.search-input input { background: none; border: none; outline: none; color: var(--text); font-size: 14px; flex: 1; min-width: 160px; }

/* ── Gamification ──────────────────────────────────────────── */
.xp-bar { display: flex; align-items: center; gap: 12px; }
.xp-bar .level-badge {
  width: 36px; height: 36px; border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), #f97316);
  display: flex; align-items: center; justify-content: center;
  font-size: 13px; font-weight: 800; color: #0d1117;
  box-shadow: 0 0 12px rgba(245,158,11,.4);
}
.xp-bar .xp-info { flex: 1; }
.xp-bar .xp-label { font-size: 11px; color: var(--text-muted); margin-bottom: 4px; }

.badge-card {
  background: var(--bg-elevated); border: 1px solid var(--border);
  border-radius: var(--radius-lg); padding: 16px; text-align: center;
  transition: all var(--transition);
}
.badge-card:hover { transform: translateY(-4px); box-shadow: 0 0 20px rgba(var(--badge-r,99),var(--badge-g,102),var(--badge-b,241),.3); }
.badge-card.locked { opacity: .4; filter: grayscale(1); }

.badge-icon-wrap {
  width: 64px; height: 64px; border-radius: 50%; margin: 0 auto 12px;
  display: flex; align-items: center; justify-content: center;
  font-size: 28px;
  background: conic-gradient(var(--badge-color, var(--accent)) 0deg, rgba(255,255,255,.05) 0deg);
  border: 3px solid var(--badge-color, var(--accent));
  box-shadow: 0 0 16px rgba(245,158,11,.3);
  position: relative;
}
.badge-name { font-size: 13px; font-weight: 700; color: white; margin-bottom: 4px; }
.badge-desc { font-size: 11px; color: var(--text-muted); }
.badge-xp { font-size: 11px; color: var(--accent); font-weight: 700; margin-top: 6px; }

.rarity-tag {
  display: inline-block; font-size: 10px; font-weight: 700;
  padding: 2px 8px; border-radius: var(--radius-full);
  letter-spacing: .05em; text-transform: uppercase; margin-bottom: 6px;
}
.rarity-common    { background: rgba(156,163,175,.2); color: #9ca3af; }
.rarity-uncommon  { background: rgba(34,197,94,.2);   color: #4ade80; }
.rarity-rare      { background: rgba(59,130,246,.2);  color: #60a5fa; }
.rarity-epic      { background: rgba(168,85,247,.2);  color: #c084fc; }
.rarity-legendary { background: rgba(245,158,11,.2);  color: #fbbf24; border: 1px solid rgba(245,158,11,.4); box-shadow: 0 0 8px rgba(245,158,11,.2); }

/* ── Course Card ───────────────────────────────────────────── */
.course-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 20px; }

.course-card {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius-lg); overflow: hidden;
  transition: all var(--transition);
}
.course-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); border-color: rgba(99,102,241,.4); }
.course-card-thumb {
  height: 160px; background: linear-gradient(135deg, var(--bg-elevated), var(--bg-hover));
  display: flex; align-items: center; justify-content: center; position: relative; overflow: hidden;
}
.course-card-thumb img { width: 100%; height: 100%; object-fit: cover; }
.course-card-thumb .content-type-badge {
  position: absolute; top: 12px; left: 12px;
  background: rgba(0,0,0,.7); backdrop-filter: blur(4px);
  border-radius: var(--radius-sm); padding: 4px 10px;
  font-size: 11px; font-weight: 600; color: white;
  display: flex; align-items: center; gap: 5px;
}
.course-card-body { padding: 16px; }
.course-card-title { font-size: 15px; font-weight: 700; color: white; margin-bottom: 8px; line-height: 1.4; }
.course-card-meta { display: flex; gap: 12px; font-size: 12px; color: var(--text-muted); }
.course-card-meta i { font-size: 11px; }
.course-card-footer {
  padding: 12px 16px; border-top: 1px solid var(--border);
  display: flex; align-items: center; justify-content: space-between;
}
.course-progress-text { font-size: 12px; color: var(--text-muted); }

/* ── Leçon Viewer ──────────────────────────────────────────── */
.lesson-player {
  background: #000; border-radius: var(--radius-lg); overflow: hidden;
  aspect-ratio: 16/9; display: flex; align-items: center; justify-content: center;
}
.lesson-player iframe, .lesson-player video { width: 100%; height: 100%; border: none; }

.lesson-list { list-style: none; }
.lesson-item {
  display: flex; align-items: center; gap: 12px;
  padding: 12px 16px; border-radius: var(--radius);
  cursor: pointer; transition: all var(--transition);
  border: 1px solid transparent;
}
.lesson-item:hover { background: var(--bg-hover); border-color: var(--border); }
.lesson-item.active { background: rgba(99,102,241,.1); border-color: rgba(99,102,241,.3); }
.lesson-item.completed .lesson-status { color: var(--success); }
.lesson-status { width: 24px; height: 24px; border-radius: 50%; border: 2px solid var(--border); display: flex; align-items: center; justify-content: center; font-size: 11px; color: var(--text-muted); flex-shrink: 0; }
.lesson-status.done { background: var(--success); border-color: var(--success); color: white; }
.lesson-info { flex: 1; }
.lesson-title { font-size: 13px; font-weight: 600; color: var(--text); }
.lesson-duration { font-size: 11px; color: var(--text-muted); margin-top: 2px; }
.lesson-xp { font-size: 11px; color: var(--accent); font-weight: 700; }

/* ── Notifications panel ───────────────────────────────────── */
.notif-panel {
  position: absolute; right: 0; top: calc(100% + 10px);
  width: 360px; background: var(--bg-elevated);
  border: 1px solid var(--border); border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg); z-index: 200;
  opacity: 0; pointer-events: none; transform: translateY(-8px);
  transition: all .2s ease;
}
.notif-panel.open { opacity: 1; pointer-events: auto; transform: translateY(0); }
.notif-header { padding: 16px 20px; border-bottom: 1px solid var(--border); display: flex; align-items: center; justify-content: space-between; }
.notif-item { display: flex; gap: 12px; padding: 14px 20px; border-bottom: 1px solid var(--border-light); transition: background var(--transition); }
.notif-item:hover { background: rgba(255,255,255,.03); }
.notif-item.unread { background: rgba(99,102,241,.05); }
.notif-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--primary); margin-top: 6px; flex-shrink: 0; }
.notif-body { flex: 1; }
.notif-title { font-size: 13px; font-weight: 600; color: white; margin-bottom: 2px; }
.notif-text { font-size: 12px; color: var(--text-muted); }
.notif-time { font-size: 11px; color: var(--text-faint); margin-top: 3px; }

/* ── Qualiopi compliance ───────────────────────────────────── */
.qualiopi-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 12px; }
.qualiopi-card {
  background: var(--bg-elevated); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 16px; position: relative;
}
.qualiopi-num { font-size: 11px; color: var(--text-faint); font-weight: 700; letter-spacing: .1em; }
.qualiopi-title { font-size: 14px; font-weight: 700; color: white; margin: 4px 0 8px; }
.qualiopi-status { display: flex; align-items: center; gap: 6px; font-size: 12px; }

/* ── Timeline ──────────────────────────────────────────────── */
.timeline { position: relative; padding-left: 24px; }
.timeline::before { content: ''; position: absolute; left: 7px; top: 0; bottom: 0; width: 2px; background: var(--border); }
.timeline-item { position: relative; margin-bottom: 20px; }
.timeline-dot { position: absolute; left: -21px; top: 4px; width: 12px; height: 12px; border-radius: 50%; background: var(--primary); border: 2px solid var(--bg); }
.timeline-content { background: var(--bg-elevated); border: 1px solid var(--border); border-radius: var(--radius); padding: 12px 16px; }
.timeline-time { font-size: 11px; color: var(--text-faint); margin-bottom: 4px; }
.timeline-text { font-size: 13px; color: var(--text); }

/* ── Toast ─────────────────────────────────────────────────── */
.toast-container { position: fixed; bottom: 24px; right: 24px; z-index: 9999; display: flex; flex-direction: column; gap: 10px; }
.toast {
  display: flex; align-items: flex-start; gap: 12px;
  background: var(--bg-elevated); border: 1px solid var(--border);
  border-radius: var(--radius-lg); padding: 14px 18px;
  box-shadow: var(--shadow-lg); max-width: 340px;
  animation: slideInRight .3s ease;
}
.toast.hide { animation: slideOutRight .3s ease forwards; }
@keyframes slideInRight { from { transform: translateX(100%); opacity: 0; } to { transform: translateX(0); opacity: 1; } }
@keyframes slideOutRight { to { transform: translateX(120%); opacity: 0; } }
.toast-icon { font-size: 18px; margin-top: 1px; }
.toast-title { font-size: 14px; font-weight: 700; color: white; }
.toast-msg { font-size: 13px; color: var(--text-muted); margin-top: 2px; }
.toast-success .toast-icon { color: var(--success); }
.toast-error   .toast-icon { color: var(--danger); }
.toast-warning .toast-icon { color: var(--warning); }
.toast-badge   .toast-icon { color: var(--accent); }

/* ── Skeleton loader ───────────────────────────────────────── */
.skeleton { background: linear-gradient(90deg, var(--bg-elevated) 25%, var(--bg-hover) 50%, var(--bg-elevated) 75%); background-size: 200% 100%; animation: shimmer 1.5s infinite; border-radius: var(--radius); }
@keyframes shimmer { to { background-position: -200% 0; } }

/* ── Empty state ───────────────────────────────────────────── */
.empty-state { text-align: center; padding: 60px 20px; color: var(--text-muted); }
.empty-state .icon { font-size: 56px; margin-bottom: 16px; opacity: .3; }
.empty-state h3 { font-size: 18px; font-weight: 700; color: var(--text); margin-bottom: 8px; }
.empty-state p { max-width: 400px; margin: 0 auto 20px; }

/* ── Responsive ────────────────────────────────────────────── */
@media (max-width: 1024px) {
  :root { --sidebar-w: 220px; }
  .page-content { padding: 20px; }
}

@media (max-width: 768px) {
  .sidebar { transform: translateX(-100%); }
  .sidebar.open { transform: translateX(0); }
  .main-content { margin-left: 0; }
  .form-row { grid-template-columns: 1fr; }
  .stat-cards { grid-template-columns: 1fr 1fr; }
  .page-content { padding: 16px; }
  .topbar { padding: 0 16px; }
}

@media (max-width: 480px) {
  .stat-cards { grid-template-columns: 1fr; }
  .course-grid { grid-template-columns: 1fr; }
}

/* ── Animations utilitaires ────────────────────────────────── */
.fade-in { animation: fadeIn .3s ease; }
@keyframes fadeIn { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: translateY(0); } }

.pulse { animation: pulse 2s infinite; }
@keyframes pulse { 0%,100% { opacity: 1; } 50% { opacity: .6; } }

/* ── Utilitaires ───────────────────────────────────────────── */
.flex         { display: flex; }
.flex-col     { flex-direction: column; }
.items-center { align-items: center; }
.items-start  { align-items: flex-start; }
.justify-between { justify-content: space-between; }
.justify-end  { justify-content: flex-end; }
.gap-2 { gap: 8px; }
.gap-3 { gap: 12px; }
.gap-4 { gap: 16px; }
.flex-1 { flex: 1; }
.w-full { width: 100%; }
.text-center { text-align: center; }
.text-right  { text-align: right; }
.text-muted  { color: var(--text-muted); }
.text-white  { color: white; }
.text-sm     { font-size: 13px; }
.text-xs     { font-size: 11px; }
.font-bold   { font-weight: 700; }
.font-medium { font-weight: 500; }
.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: 4px; }
.mb-2 { margin-bottom: 8px; }
.mb-3 { margin-bottom: 12px; }
.mb-4 { margin-bottom: 16px; }
.mb-6 { margin-bottom: 24px; }
.mt-4 { margin-top: 16px; }
.mt-6 { margin-top: 24px; }
.p-4 { padding: 16px; }
.p-6 { padding: 24px; }
.rounded { border-radius: var(--radius); }
.rounded-full { border-radius: var(--radius-full); }
.truncate { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.hidden { display: none; }

/* ── Landing Page ──────────────────────────────────────────── */
.landing-hero {
  min-height: 100vh;
  background: linear-gradient(135deg, #0d1117 0%, #161b22 40%, #1c2230 100%);
  display: flex; align-items: center; justify-content: center;
  position: relative; overflow: hidden; padding: 40px 20px;
}
.landing-hero::before {
  content: '';
  position: absolute; inset: 0;
  background: radial-gradient(ellipse 80% 50% at 50% 0%, rgba(99,102,241,.15) 0%, transparent 70%);
}
.landing-hero::after {
  content: '';
  position: absolute; inset: 0;
  background: radial-gradient(ellipse 50% 40% at 80% 80%, rgba(139,92,246,.1) 0%, transparent 60%);
}

.hero-content { position: relative; z-index: 1; text-align: center; max-width: 680px; }
.hero-badge {
  display: inline-flex; align-items: center; gap: 8px;
  background: rgba(99,102,241,.15); border: 1px solid rgba(99,102,241,.3);
  padding: 6px 16px; border-radius: var(--radius-full);
  font-size: 12px; font-weight: 600; color: var(--primary-light);
  margin-bottom: 28px; letter-spacing: .05em; text-transform: uppercase;
}
.hero-title {
  font-size: clamp(36px, 6vw, 64px);
  font-family: var(--font-heading); font-weight: 800;
  line-height: 1.1; margin-bottom: 20px;
  background: linear-gradient(135deg, white 0%, #c7d2fe 50%, #a5b4fc 100%);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-sub {
  font-size: 18px; color: var(--text-muted); max-width: 520px;
  margin: 0 auto 36px; line-height: 1.7;
}
.hero-actions { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }

.auth-card {
  background: rgba(30,37,53,.8); border: 1px solid var(--border);
  border-radius: var(--radius-xl); padding: 36px;
  backdrop-filter: blur(20px); box-shadow: var(--shadow-lg);
  max-width: 440px; width: 100%; margin: 0 auto;
}
.auth-header { text-align: center; margin-bottom: 28px; }
.auth-header .logo { font-size: 36px; margin-bottom: 12px; }
.auth-header h2 { font-size: 24px; font-weight: 800; margin-bottom: 6px; }
.auth-header p { color: var(--text-muted); font-size: 14px; }

/* ── Modules hiérarchie RNCP ───────────────────────────────── */
.hierarchy-tree { padding-left: 0; }
.tree-node { margin-bottom: 8px; }
.tree-node-header {
  display: flex; align-items: center; gap: 10px;
  padding: 12px 16px; background: var(--bg-elevated);
  border: 1px solid var(--border); border-radius: var(--radius);
  cursor: pointer; transition: all var(--transition);
}
.tree-node-header:hover { border-color: var(--primary); background: var(--bg-hover); }
.tree-toggle { width: 20px; height: 20px; display: flex; align-items: center; justify-content: center; color: var(--text-muted); transition: transform var(--transition); }
.tree-toggle.open { transform: rotate(90deg); }
.tree-icon { color: var(--primary-light); font-size: 16px; }
.tree-label { flex: 1; font-size: 14px; font-weight: 600; }
.tree-children { padding-left: 28px; margin-top: 6px; border-left: 2px solid var(--border); }

/* ── Quiz ──────────────────────────────────────────────────── */
.quiz-container { max-width: 720px; margin: 0 auto; }
.quiz-header { background: var(--bg-elevated); border-radius: var(--radius-lg); padding: 20px 24px; margin-bottom: 24px; }
.quiz-progress-info { display: flex; justify-content: space-between; align-items: center; margin-bottom: 12px; }
.question-card { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 28px; margin-bottom: 20px; }
.question-num { font-size: 11px; color: var(--primary-light); font-weight: 700; letter-spacing: .1em; text-transform: uppercase; margin-bottom: 12px; }
.question-text { font-size: 18px; font-weight: 700; margin-bottom: 24px; line-height: 1.4; }

.option-list { list-style: none; display: flex; flex-direction: column; gap: 10px; }
.option-item {
  display: flex; align-items: center; gap: 14px;
  padding: 14px 18px; background: var(--bg-elevated);
  border: 2px solid var(--border); border-radius: var(--radius);
  cursor: pointer; transition: all var(--transition); user-select: none;
}
.option-item:hover { border-color: var(--primary); background: rgba(99,102,241,.08); }
.option-item.selected { border-color: var(--primary); background: rgba(99,102,241,.12); }
.option-item.correct  { border-color: var(--success); background: rgba(16,185,129,.12); }
.option-item.wrong    { border-color: var(--danger);  background: rgba(239,68,68,.12); }
.option-marker {
  width: 22px; height: 22px; border-radius: 50%;
  border: 2px solid var(--border); display: flex;
  align-items: center; justify-content: center;
  font-size: 10px; font-weight: 700; flex-shrink: 0;
  transition: all var(--transition);
}
.option-item.selected .option-marker { background: var(--primary); border-color: var(--primary); color: white; }
.option-text { font-size: 15px; }

.timer-bar {
  height: 4px; background: var(--bg-elevated);
  border-radius: var(--radius-full); overflow: hidden; margin-bottom: 8px;
}
.timer-fill { height: 100%; background: var(--primary); transition: width 1s linear; border-radius: var(--radius-full); }
.timer-fill.warning { background: var(--warning); }
.timer-fill.danger  { background: var(--danger); }

/* ── Certificat ────────────────────────────────────────────── */
.certificate {
  background: white; color: #1a1a2e;
  max-width: 800px; margin: 0 auto;
  padding: 60px; text-align: center;
  border: 8px solid #6366f1; border-radius: 4px;
  position: relative;
}
.certificate::before {
  content: '';
  position: absolute; inset: 8px;
  border: 2px solid rgba(99,102,241,.3);
  border-radius: 2px; pointer-events: none;
}
.certificate h1 { font-size: 42px; color: #6366f1; margin-bottom: 8px; }
.certificate .student-name { font-size: 32px; font-weight: 800; margin: 20px 0; }
.certificate .formation-name { font-size: 20px; color: #374151; }