:root {
  --bg: #f4f6f9; --card: #fff; --ink: #1d2733; --muted: #6b7785; --line: #e1e6ec;
  --primary: #1f3a5f; --primary-2: #2c5282; --accent: #e07a1f;
  --ok: #1e7d4f; --ok-bg: #e3f4ea; --err: #b42318; --err-bg: #fdecea; --warn: #8a5a00; --warn-bg: #fff4d6;
  --radius: 8px;
}
* { box-sizing: border-box; }
html, body { margin: 0; }
body { font: 15px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif; background: var(--bg); color: var(--ink); }
a { color: var(--primary-2); }
h1 { font-size: 1.5rem; margin: 0 0 1rem; }
h2 { font-size: 1.15rem; margin: 0 0 .75rem; }
code { background: #eef1f5; padding: 1px 5px; border-radius: 4px; }
.muted { color: var(--muted); }
.right { text-align: right; }
.nowrap { white-space: nowrap; }

/* Structure */
.sidebar { position: fixed; inset: 0 auto 0 0; width: 230px; background: var(--primary); color: #fff; display: flex; flex-direction: column; padding: 1rem 0; overflow-y: auto; z-index: 20; }
.side-brand { padding: 0 1.2rem 1rem; border-bottom: 1px solid rgba(255,255,255,.15); margin-bottom: .5rem; }
.side-brand strong { display: block; font-size: 1.05rem; }
.side-brand small { opacity: .75; }
.sidebar a, .sidebar button.link { display: block; width: 100%; text-align: left; padding: .6rem 1.2rem; color: #fff; text-decoration: none; opacity: .9; background: none; border: 0; font: inherit; cursor: pointer; }
.sidebar a:hover, .sidebar button.link:hover { background: rgba(255,255,255,.08); opacity: 1; }
.sidebar a.active { background: rgba(255,255,255,.15); border-left: 3px solid var(--accent); opacity: 1; }
.side-bottom { margin-top: auto; border-top: 1px solid rgba(255,255,255,.15); padding-top: .5rem; }
.content { margin-left: 230px; padding: 1.5rem 2rem 3rem; max-width: 1300px; }
.center { min-height: 100vh; display: flex; align-items: center; justify-content: center; padding: 1rem; flex-direction: column; }
.topbar { display: none; }

/* Cartes et grilles */
.card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 1.2rem 1.4rem; margin-bottom: 1.2rem; }
.card.narrow { max-width: 460px; width: 100%; }
.login h1 { color: var(--primary); }
.grid { display: grid; gap: 1.2rem; }
.grid-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 1rem; margin-bottom: 1.2rem; }
.stat { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 1rem 1.2rem; }
.stat .label { color: var(--muted); font-size: .85rem; }
.stat .value { font-size: 1.4rem; font-weight: 600; margin-top: .2rem; }
.stat.ok .value { color: var(--ok); } .stat.err .value { color: var(--err); }
.head { display: flex; justify-content: space-between; align-items: center; gap: 1rem; flex-wrap: wrap; margin-bottom: 1rem; }
.head h1 { margin: 0; }
dl.info { display: grid; grid-template-columns: max-content 1fr; gap: .35rem 1rem; margin: 0; }
dl.info dt { color: var(--muted); } dl.info dd { margin: 0; }

/* Formulaires */
label { display: block; margin-bottom: .8rem; font-size: .9rem; color: #3a4654; }
input, select, textarea { display: block; width: 100%; margin-top: .25rem; padding: .55rem .65rem; border: 1px solid #c9d1db; border-radius: 6px; font: inherit; background: #fff; color: var(--ink); }
input:focus, select:focus, textarea:focus { outline: 2px solid #9fbbe0; border-color: var(--primary-2); }
input[type=checkbox] { display: inline; width: auto; margin: 0 .35rem 0 0; }
label.check { display: inline-flex; align-items: center; margin-right: 1rem; }
.form-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 0 1rem; }
.inline-form { display: flex; flex-wrap: wrap; gap: .6rem; align-items: flex-end; }
.inline-form label { margin: 0; flex: 1 1 140px; }
.inline-form .btn { flex: 0 0 auto; }
fieldset { border: 1px solid var(--line); border-radius: var(--radius); margin: 0 0 1rem; padding: .8rem 1rem .2rem; }
legend { padding: 0 .4rem; color: var(--muted); font-size: .85rem; }

.btn { display: inline-block; padding: .55rem 1rem; border-radius: 6px; border: 1px solid var(--primary); background: var(--primary); color: #fff; font: inherit; cursor: pointer; text-decoration: none; white-space: nowrap; }
.btn:hover { background: var(--primary-2); }
.btn.secondary { background: #fff; color: var(--primary); }
.btn.danger { background: var(--err); border-color: var(--err); }
.btn.small { padding: .25rem .6rem; font-size: .85rem; }
.btn.block { width: 100%; }
button.icon { background: none; border: 0; color: var(--err); cursor: pointer; font-size: .9rem; padding: .2rem .4rem; }
form.inline { display: inline; }

/* Tableaux */
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; background: var(--card); }
th, td { padding: .55rem .7rem; border-bottom: 1px solid var(--line); text-align: left; vertical-align: middle; }
th { background: #f0f3f7; font-weight: 600; font-size: .85rem; color: #3a4654; white-space: nowrap; }
tr:hover td { background: #fafbfd; }
tfoot td { font-weight: 600; background: #f7f9fb; }
td.num, th.num { text-align: right; white-space: nowrap; }
.empty { padding: 1.5rem; text-align: center; color: var(--muted); }

/* Badges et alertes */
.badge { display: inline-block; padding: .1rem .55rem; border-radius: 99px; font-size: .78rem; background: #e8edf3; color: #3a4654; white-space: nowrap; }
.b-reussi, .b-actif { background: var(--ok-bg); color: var(--ok); }
.b-echoue, .b-abandon, .b-inactif, .b-expire { background: var(--err-bg); color: var(--err); }
.b-a_venir, .b-en_cours { background: #e6eefa; color: var(--primary-2); }
.b-absent { background: var(--warn-bg); color: var(--warn); }
.alert { padding: .7rem 1rem; border-radius: 6px; margin-bottom: 1rem; border: 1px solid transparent; }
.alert.success { background: var(--ok-bg); color: var(--ok); border-color: #bfe5cf; }
.alert.error { background: var(--err-bg); color: var(--err); border-color: #f5c2bd; }
.alert.warn { background: var(--warn-bg); color: var(--warn); border-color: #f0dc9f; }
.pager { display: flex; gap: .5rem; margin-top: 1rem; align-items: center; }
.reste-pos { color: var(--err); font-weight: 600; }
.reste-ok { color: var(--ok); font-weight: 600; }

/* Mobile */
@media (max-width: 900px) {
  .topbar { display: flex; align-items: center; gap: .8rem; position: sticky; top: 0; background: var(--primary); color: #fff; padding: .6rem 1rem; z-index: 30; }
  .menu-btn { background: none; border: 0; color: #fff; font-size: 1.4rem; cursor: pointer; }
  .brand { font-weight: 600; }
  .sidebar { transform: translateX(-100%); transition: transform .2s; top: 48px; }
  .sidebar.open { transform: none; }
  .content { margin-left: 0; padding: 1rem; }
  .grid-2, .grid-3 { grid-template-columns: 1fr; }
}

/* Impression (reçus) */
@media print {
  .sidebar, .topbar, .no-print, .alert { display: none !important; }
  .content { margin: 0; padding: 0; }
  body { background: #fff; }
  .card { border: 0; }
}