:root{
  --side:#140d2b; --side-2:#1d1540; --side-txt:#c9c3e6; --side-mute:#7d76a3;
  --bg:#f5f5f8; --card:#fff; --line:#e7e6ef; --txt:#15122b; --mute:#6b6889;
  --blue:#2740E0; --violet:#7C3AED; --magenta:#C026D3;
  --green:#16a34a; --red:#dc2626; --amber:#b45309;
  --grad:linear-gradient(90deg,#2740E0,#7C3AED,#C026D3);
  --r:14px;
}
*{box-sizing:border-box}
html,body{margin:0;height:100%}
body{font-family:'Jost',system-ui,-apple-system,sans-serif;background:var(--bg);color:var(--txt);font-size:15px;display:flex}
a{color:inherit}
.grad{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}

/* ---------- Sidebar ---------- */
.sidebar{width:262px;flex:0 0 262px;background:var(--side);color:var(--side-txt);height:100vh;position:sticky;top:0;display:flex;flex-direction:column}
.brand{padding:18px 18px 10px}
.logo{display:inline-block;background:#fff;color:#111;font-weight:700;font-size:26px;padding:4px 12px;border-radius:10px;letter-spacing:-.5px}
.hub{color:#e14bd8;font-weight:700;font-size:16px;margin-top:12px}
.sub{color:#fff;font-weight:600;font-size:11px;letter-spacing:.3px}
nav{flex:1;overflow-y:auto;padding:4px 10px 10px}
.nav-group{font-size:10.5px;font-weight:600;text-transform:uppercase;letter-spacing:.6px;color:var(--side-mute);margin:16px 8px 6px}
.nav-item{display:flex;align-items:center;gap:10px;padding:8px 10px;border-radius:9px;text-decoration:none;font-size:14px;color:var(--side-txt)}
.nav-item:hover{background:var(--side-2);color:#fff}
.nav-item.active{background:linear-gradient(90deg,#3b1d6e,#4a1f63);color:#fff;box-shadow:inset 0 0 0 1px #6d3bc9}
.nav-item .ic{width:18px;text-align:center;font-size:13px;opacity:.9}
.nav-item .lbl{flex:1}
.badge{background:#2d2552;color:#d9d4f5;font-size:11px;font-weight:600;padding:1px 8px;border-radius:20px}
.badge.red{background:#7f1d1d;color:#fecaca}
.badge.violet{background:#6d28d9;color:#fff}
.me{display:flex;align-items:center;gap:10px;padding:12px 14px;border-top:1px solid #2a2350}
.avatar{width:32px;height:32px;border-radius:50%;background:var(--violet);color:#fff;display:grid;place-items:center;font-weight:700}
.who{flex:1;min-width:0;line-height:1.15}
.who strong{display:block;color:#fff;font-size:13.5px}
.who small{color:var(--side-mute);font-size:11px;overflow:hidden;text-overflow:ellipsis;display:block}
.btn-quit{background:transparent;border:1px solid #3a3266;color:var(--side-txt);border-radius:7px;padding:4px 9px;font:inherit;font-size:12px;cursor:pointer}
.version{font-size:10.5px;color:var(--side-mute);padding:0 14px 12px}
.burger{display:none}

/* ---------- Main ---------- */
.main{flex:1;min-width:0;padding:18px 28px 60px}
.topbar{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:18px;flex-wrap:wrap}
.topbar h1{font-size:22px;margin:0;font-weight:700}
.top-actions{display:flex;gap:10px;align-items:center;flex-wrap:wrap}
.search input{border:1px solid var(--line);background:#fff;border-radius:10px;padding:8px 12px;width:290px;font:inherit;font-size:13.5px}
.flash{padding:10px 14px;border-radius:10px;margin-bottom:14px;font-size:14px}
.flash.ok{background:#ecfdf3;color:#166534;border:1px solid #bbf7d0}
.flash.err{background:#fef2f2;color:#991b1b;border:1px solid #fecaca}
.flash.info{background:#f5f3ff;color:#5b21b6;border:1px solid #ddd6fe}

/* ---------- Cards / KPI ---------- */
.kpis{display:grid;grid-template-columns:repeat(auto-fit,minmax(170px,1fr));gap:12px;margin-bottom:16px}
.kpi{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:16px 18px;text-decoration:none;display:block}
.kpi b{display:block;font-size:28px;font-weight:700;letter-spacing:-.5px}
.kpi span{font-size:13px;color:var(--mute)}
.kpi.red b{color:var(--red)} .kpi.amber b{color:var(--amber)} .kpi.blue b{color:var(--blue)} .kpi.green b{color:var(--green)} .kpi.violet b{color:var(--violet)}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:18px;margin-bottom:14px}
.card h2{font-size:16px;margin:0 0 12px;font-weight:600}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.row-link{display:flex;align-items:center;gap:10px;background:#fff;border:1px solid var(--line);border-radius:12px;padding:13px 16px;text-decoration:none;margin-bottom:10px;font-weight:600}
.row-link .dot{width:9px;height:9px;border-radius:50%}
.row-link .n{margin-left:auto;font-weight:500;color:var(--mute)}
.row-link:hover{border-color:#cfc8f3}

/* ---------- Tables ---------- */
.tbl-wrap{background:#fff;border:1px solid var(--line);border-radius:var(--r);overflow-x:auto}
table{width:100%;border-collapse:collapse;font-size:14px}
th{text-align:left;font-weight:600;font-size:12px;color:var(--mute);text-transform:uppercase;letter-spacing:.3px;padding:11px 12px;border-bottom:1px solid var(--line);background:#fbfbfd;white-space:nowrap}
td{padding:10px 12px;border-bottom:1px solid #f0eff5;vertical-align:middle}
tr:last-child td{border-bottom:0}
tr.clickable{cursor:pointer} tr.clickable:hover td{background:#faf9ff}
td.num,th.num{text-align:right;white-space:nowrap}
tfoot td{font-weight:700;background:#fbfbfd}
.muted{color:var(--mute)} .small{font-size:12.5px}
.empty{padding:40px;text-align:center;color:var(--mute)}

.pill{display:inline-block;font-size:12px;font-weight:600;padding:2px 9px;border-radius:20px;white-space:nowrap}
.st-classer{background:#f3e8ff;color:#6b21a8}
.st-payer{background:#fef3c7;color:#92400e}
.st-payee{background:#dcfce7;color:#166534}
.st-rejetee{background:#f1f5f9;color:#475569}
.st-retard{background:#fee2e2;color:#991b1b}
.cat{display:inline-flex;align-items:center;gap:6px;font-size:12.5px;white-space:nowrap}
.cat::before{content:"";width:8px;height:8px;border-radius:50%;background:var(--c,#999)}

/* ---------- Forms ---------- */
.btn{display:inline-flex;align-items:center;gap:6px;border:0;border-radius:10px;padding:9px 15px;font:inherit;font-size:14px;font-weight:600;cursor:pointer;text-decoration:none;background:#111;color:#fff}
.btn.grad-bg{background:var(--grad)}
.btn.light{background:#fff;color:var(--txt);border:1px solid var(--line)}
.btn.green{background:var(--green)} .btn.red{background:#fff;color:var(--red);border:1px solid #fecaca}
.btn.sm{padding:5px 10px;font-size:12.5px;border-radius:8px}
label{display:block;font-size:12.5px;font-weight:600;color:var(--mute);margin:10px 0 4px}
input[type=text],input[type=email],input[type=password],input[type=date],input[type=number],input[type=month],input[type=file],select,textarea{width:100%;border:1px solid var(--line);border-radius:9px;padding:8px 10px;font:inherit;font-size:14px;background:#fff}
textarea{min-height:70px}
.fgrid{display:grid;grid-template-columns:1fr 1fr;gap:0 14px}
.fgrid .full{grid-column:1/-1}
.filters{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:12px;align-items:center}
.filters select,.filters input{width:auto;padding:6px 10px;font-size:13.5px}
.chips{display:flex;gap:6px;flex-wrap:wrap;margin-bottom:12px}
.chip{padding:5px 12px;border-radius:20px;background:#fff;border:1px solid var(--line);text-decoration:none;font-size:13px}
.chip.on{background:#111;color:#fff;border-color:#111}

/* ---------- Fiche facture ---------- */
.split{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(340px,.85fr);gap:16px;align-items:start}
.viewer{background:#fff;border:1px solid var(--line);border-radius:var(--r);overflow:hidden;height:calc(100vh - 110px);position:sticky;top:16px}
.viewer iframe,.viewer img{width:100%;height:100%;border:0;object-fit:contain}
.meta{font-size:13px;color:var(--mute);line-height:1.6}
.timeline{font-size:12.5px;color:var(--mute);list-style:none;padding:0;margin:0}
.timeline li{padding:5px 0;border-bottom:1px dashed var(--line)}
.actions{display:flex;gap:8px;flex-wrap:wrap;margin-top:14px}
.hint{font-size:12.5px;color:var(--mute);margin-top:6px}

/* ---------- Login ---------- */
.login-wrap{flex:1;display:grid;place-items:center;background:var(--side)}
.login{background:#fff;border-radius:18px;padding:30px;width:360px}
.login .logo{border:1px solid var(--line)}

@media (max-width:900px){
  body{display:block}
  .sidebar{position:fixed;left:-280px;z-index:20;transition:left .2s}
  body.nav-open .sidebar{left:0}
  .burger{display:block;position:fixed;top:10px;left:10px;z-index:30;background:#111;color:#fff;border:0;border-radius:8px;padding:6px 10px;font-size:18px}
  .main{padding:56px 14px 40px}
  .split,.grid2,.fgrid{grid-template-columns:1fr}
  .viewer{height:60vh;position:static}
  .search input{width:100%}
}