:root {
  --slate-50: #f8fafc;
  --slate-100: #f1f5f9;
  --slate-200: #e2e8f0;
  --slate-300: #cbd5e1;
  --slate-400: #94a3b8;
  --slate-500: #64748b;
  --slate-600: #475569;
  --slate-700: #334155;
  --slate-800: #1e293b;
  --slate-900: #0f172a;
  --blue-600: #2563eb;
  --blue-700: #1d4ed8;
  --red-600: #dc2626;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--slate-50);
  color: var(--slate-900);
}

a { color: inherit; text-decoration: none; }

.container {
  max-width: 72rem;
  margin: 0 auto;
  padding: 1.5rem 1rem;
}

/* Navigation */
.nav {
  border-bottom: 1px solid var(--slate-200);
  background: #fff;
}
.nav-inner {
  max-width: 72rem;
  margin: 0 auto;
  padding: 0 1.5rem;
  height: 3.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.nav-brand { font-weight: 600; }
.nav-links { display: flex; gap: 0.25rem; align-items: center; }
.nav-links a {
  padding: 0.4rem 0.75rem;
  border-radius: 0.375rem;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--slate-600);
}
.nav-links a.actif { background: #eff6ff; color: var(--blue-700); }
.nav-links a:hover:not(.actif) { background: var(--slate-100); }
.nav-right { display: flex; align-items: center; gap: 0.75rem; font-size: 0.875rem; color: var(--slate-500); }

/* Cards & layout */
.card {
  background: #fff;
  border: 1px solid var(--slate-200);
  border-radius: 0.75rem;
  padding: 1rem;
}
.grid { display: grid; gap: 1rem; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
@media (min-width: 640px) {
  .sm-grid-2 { grid-template-columns: repeat(2, 1fr); }
  .sm-grid-3 { grid-template-columns: repeat(3, 1fr); }
}

h1 { font-size: 1.25rem; font-weight: 600; margin: 0; color: var(--slate-900); }
h2 { font-size: 1rem; font-weight: 600; margin: 0 0 0.75rem; color: var(--slate-900); }
p.muted, .muted { color: var(--slate-500); font-size: 0.875rem; }

/* Forms */
label { display: block; font-size: 0.875rem; font-weight: 500; color: var(--slate-700); margin-bottom: 0.25rem; }
input, select, textarea {
  width: 100%;
  border: 1px solid var(--slate-300);
  border-radius: 0.375rem;
  padding: 0.5rem 0.75rem;
  font-size: 0.875rem;
  font-family: inherit;
  background: #fff;
  color: var(--slate-900);
}
input[type="color"] { padding: 0.15rem; height: 2.25rem; width: 4rem; }
input[type="checkbox"] { width: auto; }
.field { margin-bottom: 0.9rem; max-width: 28rem; }
.form-row { display: flex; flex-wrap: wrap; gap: 0.75rem; align-items: flex-end; }

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  border: none;
  border-radius: 0.375rem;
  padding: 0.5rem 1rem;
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
  background: var(--slate-100);
  color: var(--slate-800);
}
.btn:hover { background: var(--slate-200); }
.btn-primary { background: var(--blue-600); color: #fff; }
.btn-primary:hover { background: var(--blue-700); }
.btn-danger { background: none; color: var(--red-600); padding: 0; font-size: 0.8rem; }
.btn-danger:hover { text-decoration: underline; }
.btn-link { background: none; color: var(--blue-600); padding: 0; font-size: 0.8rem; }
.btn-link:hover { text-decoration: underline; }

/* Table */
table { width: 100%; border-collapse: collapse; font-size: 0.875rem; }
th { text-align: left; padding: 0.6rem 1rem; color: var(--slate-500); font-weight: 500; border-bottom: 1px solid var(--slate-200); }
td { padding: 0.6rem 1rem; border-bottom: 1px solid var(--slate-100); color: var(--slate-800); }
tr:last-child td { border-bottom: none; }
.table-wrap { overflow-x: auto; }

/* Badge */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  border-radius: 9999px;
  padding: 0.2rem 0.65rem;
  font-size: 0.75rem;
  font-weight: 500;
}
.dot { width: 0.4rem; height: 0.4rem; border-radius: 50%; display: inline-block; }
@keyframes clignoter { 0%, 100% { opacity: 1; } 50% { opacity: 0.15; } }
.dot-clignote { animation: clignoter 1.1s ease-in-out infinite; }

/* Icon buttons (modifier/supprimer un champ) */
.icon-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.75rem;
  height: 1.75rem;
  border-radius: 0.375rem;
  border: 1px solid var(--slate-200);
  background: #fff;
  color: var(--slate-600);
  cursor: pointer;
  flex-shrink: 0;
}
.icon-btn:hover { background: var(--slate-100); color: var(--slate-900); }
.icon-btn-danger { color: var(--red-600); }
.icon-btn-danger:hover { background: #fef2f2; color: var(--red-600); }

/* Pills / filters */
.pill {
  display: inline-block;
  border-radius: 9999px;
  padding: 0.3rem 0.75rem;
  font-size: 0.75rem;
  font-weight: 500;
  border: 1px solid var(--slate-300);
  color: var(--slate-600);
}
.pill.actif { background: var(--slate-900); color: #fff; border-color: var(--slate-900); }

/* Flash messages */
.flash { border-radius: 0.375rem; padding: 0.6rem 0.9rem; font-size: 0.875rem; margin-bottom: 1rem; }
.flash-erreur { background: #fef2f2; border: 1px solid #fecaca; color: #b91c1c; }
.flash-succes { background: #f0fdf4; border: 1px solid #bbf7d0; color: #15803d; }

/* Login */
.login-wrap { min-height: 100vh; display: flex; align-items: center; justify-content: center; padding: 1rem; }
.login-box { width: 100%; max-width: 24rem; background: #fff; border: 1px solid var(--slate-200); border-radius: 0.75rem; padding: 2rem; }

details > summary { cursor: pointer; font-weight: 500; font-size: 0.875rem; color: var(--slate-800); }
.stack > * + * { margin-top: 1rem; }
.hr { border: none; border-top: 1px solid var(--slate-100); margin: 1rem 0; }

/* Popup modal (échéances dépassées à la connexion) */
.modale-fond {
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  z-index: 50;
}
.modale-boite {
  background: #fff;
  border-radius: 0.75rem;
  max-width: 40rem;
  width: 100%;
  max-height: 85vh;
  overflow-y: auto;
  padding: 1.5rem;
}
.modale-boite .table-wrap { max-height: 22rem; overflow-y: auto; }

@media print {
  body * { visibility: hidden; }
  #modale-retards, #modale-retards * { visibility: visible; }
  #modale-retards {
    position: absolute; top: 0; left: 0; width: 100%; max-height: none; box-shadow: none;
  }
  #modale-retards .modale-actions { display: none; }
}