/* CestSigné — feuille de style principale */

/* =========================================
   Variables
   ========================================= */
:root {
  --primary:        #0f4c81;
  --primary-dark:   #0a3561;
  --primary-light:  #1e6eb5;
  --accent:         #3b82f6;
  --success:        #059669;
  --warning:        #d97706;
  --danger:         #dc2626;
  --text:           #1a2332;
  --text-muted:     #6b7280;
  --border:         #e5e7eb;
  --bg:             #f4f6f8;
  --bg-card:        #ffffff;
  --radius:         8px;
  --shadow:         0 2px 8px rgba(0,0,0,.08);
  --shadow-lg:      0 8px 24px rgba(0,0,0,.12);
  --font:           -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

/* =========================================
   Reset
   ========================================= */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 16px; scroll-behavior: smooth; }
body {
  font-family: var(--font);
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
  min-height: 100vh;
}
a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }
img { max-width: 100%; height: auto; display: block; }
ul, ol { list-style: none; }

/* =========================================
   Layout
   ========================================= */
.container { width: 100%; max-width: 1100px; margin: 0 auto; padding: 0 20px; }

/* =========================================
   Navigation
   ========================================= */
.nav {
  background: var(--bg-card);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: var(--shadow);
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 60px;
  padding: 0 20px;
  max-width: 1100px;
  margin: 0 auto;
}
.nav-logo {
  display: flex;
  align-items: center;
  text-decoration: none;
}
.nav-logo img { height: 39px; width: auto; display: block; }
.nav-links { display: flex; align-items: center; gap: 20px; }
.nav-links a { font-size: 14px; color: var(--text-muted); font-weight: 500; transition: color .2s; }
.nav-links a:hover { color: var(--primary); text-decoration: none; }
.nav-inner.nav-full { max-width: none; }
.nav-links .btn { margin: 0; }
.nav-links .btn-secondary:hover { color: #fff; }

/* =========================================
   Boutons
   ========================================= */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 20px;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: 14px;
  cursor: pointer;
  border: 2px solid transparent;
  transition: all .2s;
  text-decoration: none;
  white-space: nowrap;
}
.btn-primary {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}
.btn-primary:hover {
  background: var(--primary-dark);
  border-color: var(--primary-dark);
  text-decoration: none;
  color: #fff;
}
.btn-secondary {
  background: transparent;
  color: var(--primary);
  border-color: var(--primary);
}
.btn-secondary:hover {
  background: var(--primary);
  color: #fff;
  text-decoration: none;
}
.btn-success {
  background: var(--success);
  color: #fff;
  border-color: var(--success);
}
.btn-danger {
  background: var(--danger);
  color: #fff;
  border-color: var(--danger);
}
.btn-sm { padding: 7px 14px; font-size: 13px; }
.btn-lg { padding: 14px 28px; font-size: 16px; }
.btn-block { width: 100%; }
.btn:disabled { opacity: .5; cursor: not-allowed; }

/* =========================================
   Formulaires
   ========================================= */
.form-group { margin-bottom: 20px; }
.form-group label {
  display: block;
  font-size: 14px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 6px;
}
.form-control {
  width: 100%;
  padding: 10px 14px;
  border: 1.5px solid var(--border);
  border-radius: var(--radius);
  font-size: 15px;
  color: var(--text);
  background: #fff;
  transition: border-color .2s, box-shadow .2s;
  -webkit-appearance: none;
}
.form-control:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(15,76,129,.12);
}
.form-control.is-invalid { border-color: var(--danger); }
.form-text { font-size: 12px; color: var(--text-muted); margin-top: 4px; }
.form-row { display: flex; gap: 16px; }
.form-row .form-group { flex: 1; }

/* =========================================
   Alertes
   ========================================= */
.alert {
  padding: 14px 16px;
  border-radius: var(--radius);
  margin-bottom: 20px;
  font-size: 14px;
  border-left: 4px solid;
}
.alert ul { padding-left: 16px; list-style: disc; }
.alert ul li { margin-bottom: 4px; }
.alert-error   { background: #fef2f2; color: #991b1b; border-color: var(--danger); }
.alert-success { background: #f0fdf4; color: #065f46; border-color: var(--success); }
.alert-info    { background: #eff6ff; color: #1e40af; border-color: var(--accent); }
.alert-warning { background: #fffbeb; color: #92400e; border-color: var(--warning); }

/* =========================================
   Cards
   ========================================= */
.card {
  background: var(--bg-card);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
  overflow: hidden;
}
.card-header {
  padding: 18px 24px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.card-header h2, .card-header h3 { font-size: 16px; font-weight: 700; color: var(--text); }
.card-body { padding: 24px; }
.card-footer {
  padding: 16px 24px;
  background: var(--bg);
  border-top: 1px solid var(--border);
  font-size: 13px;
  color: var(--text-muted);
}

/* =========================================
   Badges & Status
   ========================================= */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 3px 10px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
}
.badge-primary  { background: #dbeafe; color: var(--primary); }
.badge-success  { background: #d1fae5; color: var(--success); }
.badge-warning  { background: #fef3c7; color: var(--warning); }
.badge-danger   { background: #fee2e2; color: var(--danger); }
.badge-muted      { background: var(--border); color: var(--text-muted); }
.badge-info       { background: #e0f2fe; color: #0369a1; }
.badge-secondary  { background: #f3f4f6; color: #374151; }

/* =========================================
   Tableau de bord
   ========================================= */
.dashboard-layout {
  display: flex;
  min-height: calc(100vh - 60px);
}
.sidebar {
  width: 240px;
  flex-shrink: 0;
  background: var(--bg-card);
  border-right: 1px solid var(--border);
  padding: 24px 0;
}
.sidebar-nav a {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 20px;
  font-size: 14px;
  color: var(--text-muted);
  font-weight: 500;
  transition: all .2s;
}
.sidebar-nav a:hover,
.sidebar-nav a.active {
  background: #eff6ff;
  color: var(--primary);
  text-decoration: none;
}
.sidebar-nav a.active { font-weight: 700; }
.sidebar-nav .divider {
  height: 1px;
  background: var(--border);
  margin: 10px 16px;
}
.main-content { flex: 1; padding: 32px; overflow-y: auto; }
.page-header { margin-bottom: 24px; }
.page-header h1 { font-size: 22px; font-weight: 700; }
.page-header p  { color: var(--text-muted); font-size: 14px; margin-top: 4px; }

/* Stats cards */
.stats-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 16px; margin-bottom: 28px; }
.stat-card { padding: 20px; background: var(--bg-card); border-radius: var(--radius); border: 1px solid var(--border); box-shadow: var(--shadow); }
.stat-card .value { font-size: 28px; font-weight: 700; color: var(--primary); }
.stat-card .label { font-size: 13px; color: var(--text-muted); margin-top: 4px; }

/* =========================================
   Utilitaires
   ========================================= */
.mt-0 { margin-top: 0 } .mt-1 { margin-top: 8px } .mt-2 { margin-top: 16px } .mt-3 { margin-top: 24px } .mt-4 { margin-top: 32px }
.mb-0 { margin-bottom: 0 } .mb-1 { margin-bottom: 8px } .mb-2 { margin-bottom: 16px } .mb-3 { margin-bottom: 24px }
.text-center { text-align: center } .text-right { text-align: right } .text-muted { color: var(--text-muted) } .text-small { font-size: 13px }
.d-flex { display: flex } .align-center { align-items: center } .justify-between { justify-content: space-between } .gap-2 { gap: 16px }
.w-100 { width: 100% }

/* =========================================
   Footer
   ========================================= */
.site-footer {
  background: var(--bg-card);
  border-top: 1px solid var(--border);
  padding: 20px;
  text-align: center;
  font-size: 13px;
  color: var(--text-muted);
}

/* =========================================
   Responsive
   ========================================= */
@media (max-width: 768px) {
  .dashboard-layout { flex-direction: column; }
  .sidebar { width: 100%; border-right: none; border-bottom: 1px solid var(--border); padding: 12px 0; }
  .sidebar-nav a { padding: 8px 16px; }
  .main-content { padding: 20px 16px; }
  .nav-links .btn-secondary { display: none; }
  .stats-grid { grid-template-columns: 1fr 1fr; }
  .form-row { flex-direction: column; gap: 0; }
}
@media (max-width: 480px) {
  .stats-grid { grid-template-columns: 1fr; }
  .container { padding: 0 16px; }
}