:root {
  --orange: #F77F00;
  --vert: #009A44;
  --bleu-fonce: #12343B;
  --gris-clair: #F4F6F8;
  --gris-texte: #5B6573;
  --rouge: #C62828;
  --blanc: #FFFFFF;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

body {
  font-family: "Segoe UI", Arial, Helvetica, sans-serif;
  color: var(--bleu-fonce);
  background: var(--blanc);
  line-height: 1.6;
}

.container { max-width: 1100px; margin: 0 auto; padding: 0 20px; }

.band {
  height: 6px;
  background: linear-gradient(90deg, var(--orange) 33.33%, var(--blanc) 33.33% 66.66%, var(--vert) 66.66%);
}

.site-header { border-bottom: 1px solid var(--gris-clair); }

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 14px;
  padding-bottom: 14px;
}

.brand {
  font-size: 1.1rem;
  text-decoration: none;
  color: var(--bleu-fonce);
}

.brand strong { color: var(--vert); }

.nav-links a {
  color: var(--bleu-fonce);
  text-decoration: none;
  font-weight: 600;
}

.hero {
  background: var(--gris-clair);
  padding: 70px 0;
  text-align: center;
}

.hero-kicker {
  color: var(--vert);
  font-weight: 600;
  letter-spacing: 0.5px;
  margin-bottom: 10px;
}

.hero h1 { font-size: 2.4rem; margin-bottom: 14px; }

.hero-sub { color: var(--gris-texte); max-width: 620px; margin: 0 auto 26px; }

.btn {
  display: inline-block;
  padding: 12px 28px;
  border-radius: 6px;
  text-decoration: none;
  font-weight: 600;
}

.btn-primary { background: var(--orange); color: var(--blanc); }
.btn-primary:hover { background: #e06f00; }

.features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 20px;
  padding-top: 50px;
  padding-bottom: 60px;
}

.card {
  background: var(--blanc);
  border: 1px solid var(--gris-clair);
  border-top: 4px solid var(--orange);
  border-radius: 8px;
  padding: 22px;
}

.card:nth-child(2) { border-top-color: var(--blanc); box-shadow: 0 2px 10px rgba(18, 52, 59, 0.08); }
.card:nth-child(3) { border-top-color: var(--vert); }

.card h2 { font-size: 1.15rem; margin-bottom: 8px; color: var(--bleu-fonce); }
.card p { color: var(--gris-texte); font-size: 0.95rem; }

.site-footer {
  background: var(--bleu-fonce);
  color: var(--blanc);
  text-align: center;
  padding-bottom: 30px;
}

.site-footer .band { margin-bottom: 22px; }
.site-footer p { font-size: 0.9rem; color: #cfe0e4; margin: 4px 0; }
.site-footer strong { color: var(--blanc); }

@media (max-width: 640px) {
  .hero h1 { font-size: 1.7rem; }
  .features { grid-template-columns: 1fr; }
}

/* ============ Formulaire / Authentification ============ */
.auth-body { background: var(--gris-clair); min-height: 100vh; display: flex; flex-direction: column; }

.auth-wrap { flex: 1; display: flex; align-items: center; justify-content: center; padding: 30px 20px; }

.auth-card {
  background: var(--blanc);
  border-radius: 10px;
  box-shadow: 0 6px 24px rgba(18, 52, 59, 0.12);
  padding: 34px 30px;
  width: 100%;
  max-width: 400px;
}

.auth-title { font-size: 1.25rem; text-align: center; margin-bottom: 6px; }
.auth-title strong { color: var(--vert); }
.auth-sub { text-align: center; color: var(--gris-texte); font-size: 0.9rem; margin-bottom: 22px; }
.auth-hint { margin-top: 18px; font-size: 0.8rem; color: var(--gris-texte); text-align: center; }
.band-bottom { margin-top: 0; }

.form .field { margin-bottom: 16px; }
.form label { display: block; font-size: 0.9rem; font-weight: 600; margin-bottom: 6px; color: var(--bleu-fonce); }
.form input[type="text"], .form input[type="password"], .form input[type="email"],
.form input[type="number"], .form input[type="date"], .form input[type="file"],
.form select, .form textarea {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid #d4dce1;
  border-radius: 6px;
  font-size: 0.95rem;
  font-family: inherit;
  background: var(--blanc);
  color: var(--bleu-fonce);
}
.form input:focus, .form select:focus, .form textarea:focus {
  outline: 2px solid var(--orange);
  border-color: var(--orange);
}

.btn-block { width: 100%; border: none; cursor: pointer; }
.btn-secondary { background: var(--bleu-fonce); color: var(--blanc); }
.btn-secondary:hover { background: #1c4a54; }
.btn-danger { background: var(--rouge); color: var(--blanc); }
.btn-danger:hover { background: #a82323; }
.btn-ghost { background: transparent; border: 1px solid #d4dce1; color: var(--bleu-fonce); }
.btn-ghost:hover { background: var(--gris-clair); }
.btn-sm { padding: 6px 12px; font-size: 0.85rem; }

.alert { padding: 10px 14px; border-radius: 6px; font-size: 0.9rem; margin-bottom: 14px; }
.alert-success { background: #e6f6ec; color: var(--vert); border: 1px solid #bfe9cd; }
.alert-error { background: #fdeaea; color: var(--rouge); border: 1px solid #f5c6c6; }
.alert-info { background: #eaf3f5; color: var(--bleu-fonce); border: 1px solid #cfe4e8; }

.notify-box { position: fixed; bottom: 18px; right: 18px; z-index: 1000; display: flex; flex-direction: column; gap: 8px; }
.notify { padding: 10px 16px; border-radius: 6px; color: var(--blanc); font-size: 0.9rem; box-shadow: 0 4px 12px rgba(0,0,0,0.2); }
.notify-success { background: var(--vert); }
.notify-error { background: var(--rouge); }
.notify-info { background: var(--bleu-fonce); }

/* ============ Application (layout) ============ */
.app-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--bleu-fonce);
  color: var(--blanc);
  padding: 12px 20px;
  gap: 16px;
  flex-wrap: wrap;
}
.app-nav .brand { color: var(--blanc); }
.app-nav .brand strong { color: #7fd6a8; }
.app-nav .nav-links { display: flex; gap: 6px; flex-wrap: wrap; align-items: center; }
.app-nav .nav-links a {
  color: #cfe0e4;
  text-decoration: none;
  padding: 7px 12px;
  border-radius: 6px;
  font-size: 0.9rem;
  font-weight: 600;
}
.app-nav .nav-links a:hover, .app-nav .nav-links a.active { background: rgba(255,255,255,0.12); color: var(--blanc); }
.app-nav .user-chip { font-size: 0.85rem; color: #cfe0e4; }
.app-nav .logout { background: var(--orange); color: var(--blanc); border: none; padding: 7px 14px; border-radius: 6px; cursor: pointer; font-weight: 600; }

.app-main { padding: 26px 20px 60px; max-width: 1200px; margin: 0 auto; }
.page-title { margin-bottom: 20px; }
.page-title h1 { font-size: 1.5rem; }
.page-title p { color: var(--gris-texte); font-size: 0.95rem; }

.cards-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 16px; margin-bottom: 24px; }
.stat-card { background: var(--blanc); border: 1px solid var(--gris-clair); border-radius: 8px; padding: 18px; border-top: 4px solid var(--orange); }
.stat-card .stat-value { font-size: 1.7rem; font-weight: 700; color: var(--bleu-fonce); }
.stat-card .stat-label { font-size: 0.85rem; color: var(--gris-texte); margin-top: 4px; }
.stat-card.green { border-top-color: var(--vert); }
.stat-card.blue { border-top-color: var(--bleu-fonce); }

.panel { background: var(--blanc); border: 1px solid var(--gris-clair); border-radius: 8px; padding: 20px; margin-bottom: 22px; }
.panel h2 { font-size: 1.05rem; margin-bottom: 14px; color: var(--bleu-fonce); }

table.table { width: 100%; border-collapse: collapse; font-size: 0.92rem; }
.table th, .table td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--gris-clair); }
.table th { background: var(--gris-clair); font-weight: 700; }
.table tr:hover td { background: #fafbfc; }
.table .actions { white-space: nowrap; }
.table .actions a, .table .actions button { margin-right: 6px; }

.badge { display: inline-block; padding: 3px 10px; border-radius: 20px; font-size: 0.78rem; font-weight: 700; }
.badge-green { background: #e6f6ec; color: var(--vert); }
.badge-orange { background: #fdeedd; color: var(--orange); }
.badge-red { background: #fdeaea; color: var(--rouge); }
.badge-blue { background: #eaf3f5; color: var(--bleu-fonce); }
.badge-gray { background: var(--gris-clair); color: var(--gris-texte); }

.toolbar { display: flex; gap: 10px; flex-wrap: wrap; margin-bottom: 16px; align-items: center; }
.toolbar .spacer { flex: 1; }

.chart-row { display: grid; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); gap: 20px; }

.empty-state { text-align: center; color: var(--gris-texte); padding: 40px 10px; }

.modal-backdrop { position: fixed; inset: 0; background: rgba(18,52,59,0.5); display: none; align-items: center; justify-content: center; z-index: 500; }
.modal-backdrop.open { display: flex; }
.modal { background: var(--blanc); border-radius: 10px; max-width: 520px; width: 92%; max-height: 88vh; overflow: auto; padding: 24px; }
.modal h2 { font-size: 1.15rem; margin-bottom: 16px; }
.modal-actions { display: flex; justify-content: flex-end; gap: 10px; margin-top: 18px; }

@media (max-width: 640px) {
  .app-nav { flex-direction: column; align-items: flex-start; }
  .chart-row { grid-template-columns: 1fr; }
}