:root{
  --bg:#f4f5f7; --surface:#ffffff; --line:#e2e4e9; --line-strong:#cfd2d9;
  --text:#1f2430; --muted:#6b7280; --primary:#4f46b5; --primary-d:#3c3489;
  --info-bg:#eef0fb; --danger:#c0392b; --ok:#1d9e75;
  --radius:8px; --radius-lg:12px;
}
*{box-sizing:border-box}
body{margin:0;font-family:system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif;
  background:var(--bg);color:var(--text);font-size:15px;line-height:1.5}
a{color:var(--primary);text-decoration:none}
h1{font-size:22px;font-weight:600;margin:0 0 4px}
.muted{color:var(--muted);font-size:13px}

/* --- Barre supérieure --- */
.topbar{display:flex;align-items:center;gap:18px;background:var(--surface);
  border-bottom:1px solid var(--line);padding:10px 22px}
.brand{display:flex;align-items:center;gap:9px}
.brand-mark{display:inline-flex;align-items:center;justify-content:center;
  width:32px;height:32px;border-radius:var(--radius);background:var(--info-bg);
  color:var(--primary-d);font-weight:700;font-size:12px}
.brand-name{font-weight:600}
.topnav{display:flex;gap:14px;margin-left:10px}
.topnav a{color:var(--text);font-size:14px;padding:6px 4px}
.topnav a:hover{color:var(--primary)}
.userbox{margin-left:auto;display:flex;align-items:center;gap:10px;font-size:13px}
.user-name{font-weight:500}
.user-role{color:var(--muted)}
.logout{color:var(--danger)}

.content{max-width:920px;margin:26px auto;padding:0 22px}
.page-head{display:flex;align-items:baseline;justify-content:space-between;gap:12px}
.footer{max-width:920px;margin:30px auto;padding:0 22px;color:var(--muted);font-size:12px}

/* --- Boutons --- */
.btn{display:inline-flex;align-items:center;gap:6px;border:1px solid var(--line-strong);
  background:var(--surface);color:var(--text);border-radius:var(--radius);
  padding:8px 14px;font-size:14px;cursor:pointer}
.btn:hover{background:var(--bg)}
.btn-primary{background:var(--primary);border-color:var(--primary);color:#fff}
.btn-primary:hover{background:var(--primary-d)}
.btn-block{width:100%;justify-content:center;margin-top:8px}

/* --- Tuiles tableau de bord --- */
.tiles{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:14px;margin-top:18px}
.tile{display:flex;flex-direction:column;gap:6px;background:var(--surface);
  border:1px solid var(--line);border-radius:var(--radius-lg);padding:16px 18px}
.tile-title{font-weight:600}
.tile-desc{color:var(--muted);font-size:13px}
a.tile:hover{border-color:var(--primary);box-shadow:0 0 0 2px var(--info-bg)}
.tile-soon{opacity:.6}

/* --- Connexion --- */
.login-body{display:flex;min-height:100vh;align-items:center;justify-content:center;background:var(--bg)}
.login-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:30px 28px;width:340px;text-align:center}
.login-brand{margin-bottom:12px}
.login-card h1{font-size:20px}
.login-sub{color:var(--muted);font-size:13px;margin:2px 0 18px}
.login-card label{display:block;text-align:left;font-size:13px;color:var(--muted);margin-bottom:12px}
.login-card input{width:100%;margin-top:5px}

/* --- Champs --- */
input{height:38px;border:1px solid var(--line-strong);border-radius:var(--radius);
  padding:0 10px;font-size:14px;background:#fff;color:var(--text)}
input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 2px var(--info-bg)}

/* --- Alertes --- */
.alert{border-radius:var(--radius);padding:9px 12px;font-size:13px;margin-bottom:12px}
.alert-error{background:#fcebeb;color:var(--danger)}

/* --- Éditeur de référentiel --- */
.ref-tree{margin:18px 0 10px}
.ref-pole,.ref-bloc,.ref-mat{display:flex;align-items:center;gap:8px;padding:7px 10px;
  border-top:1px solid var(--line)}
.ref-pole{background:var(--info-bg);border-radius:var(--radius);border-top:none;margin-top:10px}
.ref-bloc{padding-left:24px;font-weight:500}
.ref-mat{padding-left:44px;color:#374151}
.ref-name{flex:1;height:32px}
.ref-coef{width:64px;height:32px;text-align:center}
.ref-code{width:78px;height:32px}
.coef-label{font-size:11px;color:var(--muted)}
.icon-btn{border:none;background:transparent;color:var(--muted);cursor:pointer;
  font-size:14px;width:28px;height:28px;border-radius:var(--radius)}
.icon-btn.del:hover{color:var(--danger);background:#fcebeb}
.btn-add{border:1px dashed var(--line-strong);background:transparent;color:var(--muted);
  border-radius:var(--radius);padding:5px 10px;font-size:12px;cursor:pointer;margin:6px 0}
.btn-add:hover{color:var(--primary);border-color:var(--primary)}
.btn-add-mat{margin-left:44px}
.btn-add-bloc{margin-left:24px}

/* ============ Brique 2 : tableaux, formulaires, badges ============ */
.section-title{font-size:17px;font-weight:600;margin:26px 0 10px;padding-top:18px;border-top:1px solid var(--line)}
.section-title-sm{font-size:14px;font-weight:600;margin:18px 0 8px;color:var(--muted)}

.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);padding:18px}

.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.form-grid label{display:flex;flex-direction:column;gap:5px;font-size:13px;color:var(--muted)}
.form-grid input,.form-grid select{height:38px}
.form-grid .col-2{grid-column:1 / -1}
@media(max-width:620px){.form-grid{grid-template-columns:1fr}}

select{height:38px;border:1px solid var(--line-strong);border-radius:var(--radius);padding:0 8px;font-size:14px;background:#fff;color:var(--text)}
select:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 2px var(--info-bg)}

.inline-form{display:flex;flex-wrap:wrap;align-items:center;gap:10px}
.inline-form input{height:36px}

table.grid{width:100%;border-collapse:collapse;font-size:14px;background:var(--surface);
  border:1px solid var(--line);border-radius:var(--radius-lg);overflow:hidden;margin-bottom:10px}
table.grid th{text-align:left;font-size:12px;font-weight:600;color:var(--muted);
  background:var(--bg);padding:9px 12px;border-bottom:1px solid var(--line)}
table.grid td{padding:9px 12px;border-top:1px solid var(--line)}
table.grid tr:first-child td{border-top:none}
.row-actions{display:flex;gap:12px;align-items:center;white-space:nowrap}

.badge{display:inline-block;font-size:11px;padding:2px 8px;border-radius:20px}
.badge.ok{background:#e4f6ee;color:var(--ok)}
.badge.warn{background:#fdf2e0;color:#b46a00}
.badge.muted{background:#eef0f3;color:var(--muted)}

.link{border:none;background:none;color:var(--primary);cursor:pointer;font-size:14px;padding:0}
.link:hover{text-decoration:underline}
.link-danger{border:none;background:none;color:var(--danger);cursor:pointer;font-size:14px;padding:0}
.link-danger:hover{text-decoration:underline}
.alert-ok{background:#e4f6ee;color:var(--ok)}

/* ============ Brique 3 : barre de contexte (formation/promotion) ============ */
.context-bar{display:flex;flex-wrap:wrap;gap:18px;align-items:center;background:var(--surface);
  border-bottom:1px solid var(--line);padding:8px 22px}
.context-bar label{display:flex;align-items:center;gap:7px;font-size:12px;color:var(--muted)}
.context-bar select{height:32px;font-size:13px}
.form-grid label span{display:flex;align-items:center;gap:8px;color:var(--text);font-size:14px}
.form-grid input[type=checkbox]{height:auto;width:auto}

/* ============ Brique 4 : calendrier d'alternance ============ */
.cal-weeks{display:grid;grid-template-columns:repeat(auto-fill,minmax(190px,1fr));gap:8px;margin-bottom:6px}
.cal-week{display:flex;align-items:center;justify-content:space-between;gap:8px;padding:7px 10px;
  border:1px solid var(--line);border-radius:var(--radius);background:var(--surface)}
.cal-week select{height:30px;font-size:12px}
.cal-dates{font-size:12px;color:var(--muted)}
.cal-cfa{border-left:4px solid var(--ok)}
.cal-entreprise{border-left:4px solid #b46a00}
.cal-ferie{border-left:4px solid var(--muted);opacity:.7}

/* ============ Brique 4 : grille de planning ============ */
.planning-nav{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:14px}
.planning-week{font-weight:600;display:flex;align-items:center;gap:8px}
table.planning{width:100%;border-collapse:collapse;background:var(--surface);
  border:1px solid var(--line);border-radius:var(--radius-lg);overflow:hidden;table-layout:fixed}
table.planning th{background:var(--bg);font-size:12px;padding:8px;border:1px solid var(--line);text-align:center}
table.planning th.demi{width:90px;text-align:left}
table.planning td.slot{border:1px solid var(--line);vertical-align:top;padding:6px;height:88px;position:relative}
.seance{background:var(--info-bg);border-radius:6px;padding:5px 7px;margin-bottom:5px;cursor:pointer;font-size:12px;
  display:flex;flex-direction:column;gap:2px}
.seance:hover{outline:1px solid var(--primary)}
.seance-mat{font-weight:600;color:var(--primary-d)}
.seance-h,.seance-salle{color:var(--muted);font-size:11px}
.slot-add{position:absolute;bottom:5px;right:5px;width:22px;height:22px;border-radius:6px;
  border:1px dashed var(--line-strong);background:transparent;color:var(--muted);cursor:pointer;line-height:1}
.slot-add:hover{color:var(--primary);border-color:var(--primary)}
@media(max-width:700px){table.planning{font-size:11px}table.planning td.slot{height:auto}}