:root{
  /* Charte Vona */
  --brand:#111827; --brand-2:#1f2937;         /* slate (topbar, entêtes) */
  --surface:#ffffff; --surface-2:#f9f9f9; --border:#e5e7eb;
  --text:#111827; --muted:#6b7280;
  --primary:#6366f1; --primary-d:#4f46e5;      /* indigo (accent, CTA) */
  --ok:#22c55e; --warn:#eab308; --danger:#ef4444; --info:#06b6d4;
  --radius:10px; --shadow:0 1px 2px rgba(17,24,39,.06),0 1px 3px rgba(17,24,39,.10);
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  font-family:"Geist","Geist Fallback",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  background:var(--surface-2); color:var(--text); line-height:1.5;
  -webkit-font-smoothing:antialiased;
}
button{font:inherit;cursor:pointer}
a{color:var(--primary)}

/* ---------- Layout ---------- */
.topbar{
  position:sticky;top:0;z-index:20;background:var(--brand);color:#fff;
  display:flex;align-items:center;gap:12px;padding:12px 16px;
  padding-top:calc(12px + env(safe-area-inset-top));box-shadow:var(--shadow);
}
.topbar .crest{height:34px;width:auto;filter:drop-shadow(0 1px 2px rgba(0,0,0,.25))}
.topbar h1{font-size:1.05rem;margin:0;font-weight:600;flex:1}
.topbar .who{font-size:.8rem;opacity:.9}
.topbar button{background:rgba(255,255,255,.12);border:0;color:#fff;padding:6px 12px;border-radius:8px;transition:background .15s}
.topbar button:hover{background:rgba(255,255,255,.22)}
.topbar .admin-link{background:var(--primary);color:#fff;padding:6px 12px;border-radius:8px;font-size:.82rem;font-weight:500;white-space:nowrap}
.topbar .admin-link:hover{background:var(--primary-d)}

.tabs{
  display:flex;gap:4px;overflow-x:auto;background:var(--surface);
  border-bottom:1px solid var(--border);padding:0 8px;position:sticky;top:56px;z-index:15;
}
.tabs button{
  border:0;background:none;padding:14px 14px;color:var(--muted);font-weight:500;
  border-bottom:3px solid transparent;white-space:nowrap;
}
.tabs button.active{color:var(--primary);border-bottom-color:var(--primary)}
.tabs button:hover{color:var(--text)}

main{max-width:960px;margin:0 auto;padding:16px;padding-bottom:60px}

/* ---------- Cards / lists ---------- */
.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);
  box-shadow:var(--shadow);padding:16px;margin-bottom:14px;transition:box-shadow .15s,border-color .15s}
.card[data-resa]:hover,.card[data-fact]:hover,.card[data-user]:hover{
  border-color:#d1d5db;box-shadow:0 4px 12px rgba(17,24,39,.10)}
.card h3{margin:0 0 6px;font-size:1.02rem;font-weight:600;display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.row{display:flex;gap:12px;flex-wrap:wrap}
.row>*{flex:1;min-width:0}
.muted{color:var(--muted);font-size:.88rem}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:14px}
.salle-photo{width:100%;height:140px;object-fit:cover;border-radius:8px;margin-bottom:10px;background:var(--surface-2)}
.salle-photo.lg{height:200px}

/* ---------- Badges ---------- */
.badge{display:inline-block;padding:2px 10px;border-radius:999px;font-size:.75rem;font-weight:600}
.b-demande{background:#fef9c3;color:#854d0e}
.b-validee{background:#dcfce7;color:#166534}
.b-refusee{background:#fee2e2;color:#991b1b}
.b-annulee{background:#eef0f2;color:#4b5563}
.b-a_payer{background:#fef9c3;color:#854d0e}
.b-paye{background:#dcfce7;color:#166534}
.b-rembourse{background:#cffafe;color:#155e75}

/* ---------- Forms / buttons (charte Vona) ---------- */
label{display:block;font-size:.85rem;font-weight:500;margin:10px 0 4px;color:var(--text)}
input,select,textarea{
  width:100%;padding:9px 12px;border:1px solid var(--border);border-radius:8px;
  font:inherit;background:#fff;color:var(--text);
  transition:border-color .15s,box-shadow .15s;outline:none
}
input:focus,select:focus,textarea:focus{
  border-color:var(--primary);box-shadow:0 0 0 3px rgba(99,102,241,.2)
}
textarea{min-height:70px;resize:vertical}
.pass-wrap{position:relative}
.pass-wrap input{padding-right:40px}
.pass-toggle{
  position:absolute;right:4px;top:50%;transform:translateY(-50%);
  background:none;border:0;padding:6px;border-radius:6px;
  display:flex;align-items:center;justify-content:center;color:var(--muted);
}
.pass-toggle:hover{color:var(--text);background:rgba(17,24,39,.06)}
.pass-toggle:focus-visible{outline:2px solid var(--primary);outline-offset:1px}
.pass-toggle svg{width:18px;height:18px}
.btn{background:var(--primary);color:#fff;border:1px solid var(--primary);
  padding:10px 18px;border-radius:8px;font-weight:500;
  transition:background .15s,border-color .15s,transform .05s}
.btn:hover{background:var(--primary-d);border-color:var(--primary-d)}
.btn:active{transform:scale(.98)}
.btn:focus-visible{box-shadow:0 0 0 3px rgba(99,102,241,.35)}
.btn.sec{background:#f3f4f6;color:#374151;border-color:var(--border)}
.btn.sec:hover{background:#e9eaed}
.btn.ok{background:var(--ok);border-color:var(--ok)}
.btn.danger{background:var(--danger);border-color:var(--danger)}
.btn.warn{background:var(--warn);border-color:var(--warn);color:#3f2d00}
.btn.sm{padding:7px 12px;font-size:.85rem}
.btn-row{display:flex;gap:8px;flex-wrap:wrap;margin-top:12px}

/* ---------- Calendar ---------- */
.cal-head{display:flex;align-items:center;gap:12px;margin-bottom:12px}
.cal-head h3{flex:1;text-align:center;margin:0;text-transform:capitalize}
.cal{display:grid;grid-template-columns:repeat(7,1fr);gap:4px}
.cal .dow{text-align:center;font-size:.72rem;color:var(--muted);font-weight:600;padding:4px 0}
.cal .day{background:var(--surface);border:1px solid var(--border);border-radius:8px;min-height:66px;
  padding:4px;font-size:.75rem;position:relative}
.cal .day.out{background:var(--surface-2);opacity:.5}
.cal .day.today{border-color:var(--primary);box-shadow:0 0 0 1px var(--primary) inset}
.cal .day .n{font-weight:600;font-size:.75rem}
.cal .ev{display:block;margin-top:2px;padding:1px 4px;border-radius:4px;font-size:.66rem;
  overflow:hidden;text-overflow:ellipsis;white-space:nowrap;cursor:pointer}
.cal .ev.validee{background:#dcfce7;color:#166534}
.cal .ev.demande{background:#fef9c3;color:#854d0e}

/* ---------- Modal ---------- */
.modal-bg{position:fixed;inset:0;background:rgba(15,23,42,.5);display:flex;
  align-items:flex-end;justify-content:center;z-index:50;padding:0}
.modal{background:#fff;width:100%;max-width:560px;max-height:92vh;overflow:auto;
  border-radius:16px 16px 0 0;padding:20px;padding-bottom:calc(20px + env(safe-area-inset-bottom))}
.modal h2{margin:0 0 12px;font-size:1.15rem;font-weight:600;padding-bottom:12px;border-bottom:1px solid var(--border)}
.modal .close{float:right;background:none;border:0;font-size:1.5rem;color:var(--muted);line-height:1;cursor:pointer}
.modal .close:hover{color:var(--text)}
@media(min-width:560px){.modal-bg{align-items:center}.modal{border-radius:16px}}

/* ---------- Auth screen ---------- */
.auth{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:20px;
  background:var(--surface-2)}
.auth .box{background:#fff;border-radius:16px;padding:28px;width:100%;max-width:400px;
  border:1px solid var(--border);box-shadow:var(--shadow)}
.auth h1{margin:0 0 4px;font-size:1.3rem;font-weight:600}
.auth .logo{width:auto;height:88px;margin-bottom:12px;filter:drop-shadow(0 3px 6px rgba(0,0,0,.2))}
.auth .switch{text-align:center;margin-top:14px;font-size:.88rem}
.auth .switch a{cursor:pointer;font-weight:600}
.auth .ver{text-align:center;color:var(--muted);font-size:.72rem;margin:16px 0 0}

/* ---------- Toast ---------- */
.toast{position:fixed;left:50%;bottom:24px;transform:translateX(-50%);z-index:100;
  background:#0f172a;color:#fff;padding:12px 18px;border-radius:10px;box-shadow:var(--shadow);
  max-width:90vw;font-size:.9rem}
.toast.err{background:var(--danger)}
.toast.ok{background:var(--ok)}

/* ---------- Carte d'installation (page de login) ---------- */
.install-card{
  position:fixed;left:50%;transform:translateX(-50%);
  bottom:calc(16px + env(safe-area-inset-bottom));z-index:60;
  width:calc(100% - 32px);max-width:420px;background:#fff;color:var(--text);
  border-radius:14px;box-shadow:0 8px 30px rgba(0,0,0,.28);padding:16px 18px;
  animation:slideUp .35s ease}
@keyframes slideUp{from{opacity:0;transform:translate(-50%,20px)}to{opacity:1;transform:translate(-50%,0)}}
.install-card h4{margin:0 0 8px;font-size:1rem}
.install-card p{margin:0 0 6px;font-size:.9rem}
.install-card ol{margin:6px 0 0;padding-left:20px;font-size:.9rem}
.install-card ol li{margin:4px 0}
.install-card .close{position:absolute;top:8px;right:10px;background:none;border:0;
  font-size:1.4rem;line-height:1;color:var(--muted);cursor:pointer}

.empty{text-align:center;color:var(--muted);padding:40px 16px}
.spinner{text-align:center;padding:40px;color:var(--muted)}