:root {
  --bg: #f4f6f9;
  --surface: #ffffff;
  --border: #e2e8f0;
  --text: #1e293b;
  --muted: #64748b;
  --primary: #b8232f; /* rouge vaudois */
  --primary-dark: #8f1a23;
  --info: #2563eb;
  --warning: #d97706;
  --critical: #dc2626;
  --success: #16a34a;
  --radius: 8px;
  --shadow: 0 1px 3px rgba(0, 0, 0, .08), 0 1px 2px rgba(0, 0, 0, .04);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
}

a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }

.app-header {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  box-shadow: var(--shadow);
}
.app-header .inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: .75rem 1.25rem;
  display: flex;
  align-items: center;
  gap: 1.5rem;
}
.brand { font-weight: 700; font-size: 1.15rem; color: var(--primary); }
.brand span { color: var(--text); }
.app-nav { display: flex; gap: 1.25rem; margin-left: auto; align-items: center; }
.app-nav a { color: var(--muted); font-size: .93rem; }
.app-nav a:hover, .app-nav a.active { color: var(--text); text-decoration: none; }

.container { max-width: 1100px; margin: 2rem auto; padding: 0 1.25rem; }
.narrow { max-width: 460px; }

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 1.5rem;
  margin-bottom: 1.25rem;
}

h1 { font-size: 1.5rem; margin: 0 0 1rem; }
h2 { font-size: 1.2rem; margin: 0 0 .75rem; }

.btn {
  display: inline-block;
  background: var(--primary);
  color: #fff;
  border: 0;
  border-radius: var(--radius);
  padding: .55rem 1.1rem;
  font-size: .95rem;
  cursor: pointer;
  text-decoration: none;
}
.btn:hover { background: var(--primary-dark); text-decoration: none; }
.btn.secondary { background: #fff; color: var(--text); border: 1px solid var(--border); }
.btn.small { padding: .3rem .7rem; font-size: .85rem; }

label { display: block; font-size: .88rem; color: var(--muted); margin: .75rem 0 .25rem; }
input, select, textarea {
  width: 100%;
  padding: .55rem .7rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-size: .95rem;
  font-family: inherit;
}
input:focus, select:focus, textarea:focus { outline: 2px solid var(--primary); outline-offset: -1px; }

table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: .6rem .5rem; border-bottom: 1px solid var(--border); font-size: .92rem; }
th { color: var(--muted); font-weight: 600; }

.alert { padding: .75rem 1rem; border-radius: var(--radius); margin-bottom: 1rem; font-size: .92rem; }
.alert.error { background: #fef2f2; color: var(--critical); border: 1px solid #fecaca; }
.alert.success { background: #f0fdf4; color: var(--success); border: 1px solid #bbf7d0; }
.alert.info { background: #eff6ff; color: var(--info); border: 1px solid #bfdbfe; }

.badge { display: inline-block; padding: .12rem .5rem; border-radius: 999px; font-size: .78rem; font-weight: 600; }
.badge.info { background: #eff6ff; color: var(--info); }
.badge.warning { background: #fffbeb; color: var(--warning); }
.badge.critical { background: #fef2f2; color: var(--critical); }
.badge.success { background: #f0fdf4; color: var(--success); }
.badge.muted { background: #f1f5f9; color: var(--muted); }

.muted { color: var(--muted); }
.mono { font-family: ui-monospace, "SFMono-Regular", Menlo, Consolas, monospace; }
.flex { display: flex; align-items: center; gap: .75rem; }
.between { justify-content: space-between; }
.wrap { flex-wrap: wrap; }

/* Tableau de bord : tuiles de statistiques + colonnes */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 1rem;
  margin-bottom: 1.25rem;
}
.stat {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 1.1rem 1.25rem;
  display: block;
}
a.stat { color: var(--text); }
a.stat:hover { text-decoration: none; border-color: var(--primary); }
.stat .num { font-size: 1.7rem; font-weight: 700; line-height: 1.1; }
.stat.accent .num { color: var(--primary); }
.stat .lbl { color: var(--muted); font-size: .82rem; margin-top: .25rem; }
.stat .sub { font-size: .78rem; margin-top: .4rem; color: var(--muted); }
.stat .sub.danger { color: var(--critical); }

.dash-cols { display: grid; grid-template-columns: 1fr 1fr; gap: 1.25rem; align-items: start; }
.dash-cols .card { margin-bottom: 0; }
@media (max-width: 760px) { .dash-cols { grid-template-columns: 1fr; } }

.quick-actions { display: flex; flex-wrap: wrap; gap: .6rem; margin-top: 1rem; }