:root{
  --bg:#0f172a; --panel:#1e293b; --panel2:#334155; --line:#334155;
  --txt:#e2e8f0; --muted:#94a3b8; --accent:#2E5496; --accent2:#3b82f6;
  --hab:#FBE5D6; --com2:#F4B183; --com3:#843C0C;
  --green:#16a34a; --amber:#d97706; --red:#dc2626; --blue:#2563eb;
}
*{box-sizing:border-box}
body{margin:0;font-family:system-ui,Segoe UI,Arial,sans-serif;background:var(--bg);color:var(--txt)}
.hidden{display:none!important}
button{cursor:pointer;font:inherit}

/* Login */
.login{min-height:100vh;display:grid;place-items:center;background:linear-gradient(135deg,#0f172a,#1e293b)}
.login-card{background:var(--panel);padding:34px;border-radius:16px;width:320px;text-align:center;box-shadow:0 20px 60px rgba(0,0,0,.4)}
.login-card h1{margin:0 0 4px}
.login-card p{margin:0 0 20px;color:var(--muted)}
.login-card input{width:100%;padding:12px;border-radius:10px;border:1px solid var(--line);background:#0f172a;color:var(--txt);margin-bottom:12px}
.login-card button{width:100%;padding:12px;border:0;border-radius:10px;background:var(--accent2);color:#fff;font-weight:600}
.err{color:#f87171;margin-top:10px;font-size:13px}

/* App shell */
header{display:flex;align-items:center;gap:20px;padding:12px 20px;background:var(--panel);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:5}
.brand{font-weight:700;font-size:18px}
header nav{display:flex;gap:6px;flex:1}
header nav button{background:transparent;border:0;color:var(--muted);padding:8px 14px;border-radius:8px}
header nav button.active{background:var(--accent);color:#fff}
.ghost{background:transparent;border:1px solid var(--line);color:var(--muted);padding:8px 12px;border-radius:8px}
main{padding:24px;max-width:1200px;margin:0 auto}

/* Cards */
.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:16px;margin-bottom:24px}
.card{background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:18px}
.card .label{color:var(--muted);font-size:13px;margin-bottom:8px}
.card .value{font-size:26px;font-weight:700}
.card .sub{color:var(--muted);font-size:13px;margin-top:6px}
.card.accent{background:linear-gradient(135deg,#1d4ed8,#2563eb);border:0}
.bar{height:8px;background:var(--panel2);border-radius:5px;overflow:hidden;margin-top:10px}
.bar>span{display:block;height:100%;background:var(--green)}

/* Tables */
.table-wrap{overflow-x:auto;-webkit-overflow-scrolling:touch;border:1px solid var(--line);border-radius:12px}
table{width:100%;border-collapse:collapse;background:var(--panel)}
th,td{padding:10px 12px;text-align:left;border-bottom:1px solid var(--line);font-size:14px;white-space:nowrap}
th{background:var(--panel2);color:var(--muted);font-weight:600}
tbody tr:last-child td{border-bottom:0}
tr:hover td{background:rgba(255,255,255,.02)}
td.empty{text-align:center;color:var(--muted);padding:22px;white-space:normal}
.toolbar{display:flex;justify-content:space-between;align-items:center;margin-bottom:14px;gap:12px;flex-wrap:wrap}
.toolbar h2{margin:0}
.toolbar-actions{display:flex;gap:10px;align-items:center;flex-wrap:wrap}
.search{padding:9px 12px;border-radius:10px;border:1px solid var(--line);background:#0f172a;color:var(--txt);min-width:220px}
.btn{background:var(--accent2);color:#fff;border:0;padding:10px 16px;border-radius:10px;font-weight:600;min-height:40px}
.btn.sm{padding:5px 10px;font-size:13px;min-height:0}
.btn.danger{background:transparent;border:1px solid var(--red);color:#f87171}
.del{background:transparent;border:0;color:#f87171;font-size:15px;cursor:pointer;padding:2px 6px;border-radius:6px}
.del:hover{background:rgba(248,113,113,.15)}

/* Badges */
.badge{display:inline-block;padding:3px 9px;border-radius:20px;font-size:12px;font-weight:600}
.t-hab{background:var(--hab);color:#7c2d12}
.t-com2{background:var(--com2);color:#5b2600}
.t-com3{background:var(--com3);color:#fff}
.s-vendu{background:#14532d;color:#bbf7d0}
.s-dispo{background:#1e3a8a;color:#bfdbfe}
.s-solde{background:#14532d;color:#bbf7d0}
.s-partiel{background:#78350f;color:#fde68a}
.s-nonpaye{background:#7f1d1d;color:#fecaca}
.m-esp{background:#14532d;color:#bbf7d0}
.m-bank{background:#1e3a8a;color:#bfdbfe}
.m-cheque{background:#78350f;color:#fde68a}

/* fiche vente */
tr.clickable{cursor:pointer}
.vd-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-bottom:12px}
.vd-grid>div{display:flex;flex-direction:column;gap:2px}
.vd-grid .mini{font-size:11px}
.vd-h{margin:16px 0 8px;font-size:15px}

/* Modal */
.modal{position:fixed;inset:0;background:rgba(0,0,0,.6);display:grid;place-items:center;z-index:20;padding:16px}
.modal-box{background:var(--panel);border-radius:16px;width:min(560px,100%);max-height:90vh;overflow:auto}
.modal-head{display:flex;justify-content:space-between;align-items:center;padding:16px 20px;border-bottom:1px solid var(--line)}
.modal-head h2{margin:0;font-size:18px}
.modal-head button{background:transparent;border:0;color:var(--muted);font-size:18px}
#modalBody{padding:20px}
label{display:block;margin:12px 0 4px;font-size:13px;color:var(--muted)}
input,select{width:100%;padding:10px;border-radius:9px;border:1px solid var(--line);background:#0f172a;color:var(--txt)}
.row{display:flex;gap:10px}.row>div{flex:1}
.lots-pick{display:flex;flex-wrap:wrap;gap:6px;max-height:160px;overflow:auto;padding:8px;border:1px solid var(--line);border-radius:9px;background:#0f172a}
.lots-pick label{display:flex;align-items:center;gap:5px;margin:0;color:var(--txt);background:var(--panel2);padding:4px 8px;border-radius:7px;font-size:13px;cursor:pointer}
.lots-pick input{width:auto}
.vers-line{display:flex;gap:8px;margin-top:8px}
.mini{color:var(--muted);font-size:12px}

/* ---------- Responsive ---------- */
@media (max-width:720px){
  header{flex-wrap:wrap;gap:10px;padding:10px 14px}
  .brand{font-size:16px}
  header nav{order:3;width:100%;overflow-x:auto;-webkit-overflow-scrolling:touch}
  header nav button{white-space:nowrap;flex:0 0 auto}
  #logout{margin-left:auto}
  main{padding:14px}
  .cards{grid-template-columns:1fr 1fr;gap:12px}
  .card{padding:14px}
  .card .value{font-size:22px}
  .toolbar{flex-direction:column;align-items:stretch}
  .toolbar-actions{flex-direction:column;align-items:stretch}
  .search{min-width:0;width:100%}
  .toolbar-actions .btn{width:100%}
  th,td{padding:8px 10px;font-size:13px}
  .modal{padding:0;place-items:end center}
  .modal-box{width:100%;max-height:92vh;border-radius:16px 16px 0 0}
}
@media (max-width:420px){
  .cards{grid-template-columns:1fr}
}