:root{
  --bg:#f5f3ff;
  --sidebar:#3b0764;
  --sidebar-active:#7c3aed;
  --accent:#7c3aed;
  --ink:#1e1033;
  --muted:#94a3b8;
  --card-shadow:0 2px 10px rgba(124,58,237,.08);
  --yellow-bg:#fef3c7;--yellow-ink:#92400e;
  --green-bg:#dcfce7;--green-ink:#166534;
  --red-bg:#fee2e2;--red-ink:#e11d48;--red-border:#fecdd3;
}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--ink);font-family:-apple-system,'Segoe UI',Arial,sans-serif}
button,input,select{font:inherit}
button{cursor:pointer;border:0}

.login-screen{min-height:100vh;display:flex;align-items:center;justify-content:center}
.login-card{background:#fff;border-radius:16px;box-shadow:var(--card-shadow);padding:36px;width:min(380px,90vw)}
.login-card h1{font-size:20px;margin:0 0 4px;color:var(--ink)}
.login-card p{color:var(--muted);font-size:12px;margin:0 0 22px}
.login-card label{display:block;font-size:11px;font-weight:700;margin-bottom:6px;margin-top:14px}
.login-card input{width:100%;border:1px solid #e4e4e7;border-radius:8px;padding:10px}
.login-card button{width:100%;margin-top:22px;background:var(--accent);color:#fff;padding:11px;border-radius:8px;font-weight:700}
.login-error{background:var(--red-bg);color:var(--red-ink);font-size:12px;padding:9px 11px;border-radius:8px;margin-top:14px}

.app{min-height:100vh;display:grid;grid-template-columns:200px 1fr}
aside{background:var(--sidebar);color:#fff;padding:20px 14px;display:flex;flex-direction:column}
.brand{font-weight:800;font-size:15px;letter-spacing:-.3px;margin-bottom:2px}
.brand-sub{font-size:9px;color:#c4b5fd;letter-spacing:.06em;text-transform:uppercase;margin-bottom:24px}
nav{display:flex;flex-direction:column;gap:3px}
.nav-item{background:transparent;color:#ddd6fe;text-align:left;padding:9px 10px;border-radius:8px;font-size:12px}
.nav-item.active,.nav-item:hover{background:var(--sidebar-active);color:#fff}
.aside-bottom{margin-top:auto;padding-top:16px;border-top:1px solid #5b21b6;font-size:10px;color:#c4b5fd}
.aside-bottom button{background:none;color:#fff;text-decoration:underline;font-size:10px;margin-top:6px;padding:0}

main{padding:22px 26px 40px}
header{display:flex;justify-content:space-between;align-items:flex-start;margin-bottom:18px}
.eyebrow{color:var(--accent);font-size:9px;font-weight:700;letter-spacing:.08em;text-transform:uppercase}
h1{font-size:20px;font-weight:800;letter-spacing:-.5px;margin:4px 0 0}
.new-btn{background:var(--accent);color:#fff;font-size:11px;font-weight:700;padding:9px 14px;border-radius:20px;text-decoration:none;display:inline-block}

.metrics{display:grid;grid-template-columns:1.1fr 1fr 1fr 1fr 1fr;gap:10px;margin-bottom:18px}
.metric{background:#fff;border-radius:14px;padding:14px;box-shadow:var(--card-shadow)}
.metric.primary{background:var(--accent);color:#fff;box-shadow:none}
.metric.alert{border:1px solid var(--red-border);box-shadow:0 2px 10px rgba(225,29,72,.1)}
.metric.warn{border:1px solid #fde68a;box-shadow:0 2px 10px rgba(217,164,6,.08)}
.metric-label{font-size:9px;text-transform:uppercase;font-weight:700;color:#8b5cf6}
.metric.primary .metric-label{color:rgba(255,255,255,.85)}
.metric.alert .metric-label{color:var(--red-ink)}
.metric.warn .metric-label{color:var(--yellow-ink)}
.metric-value{font-size:19px;font-weight:800;margin-top:8px}
.metric.alert .metric-value{color:var(--red-ink)}
.metric.warn .metric-value{color:var(--yellow-ink)}
.metric-detail{font-size:9px;color:var(--muted);margin-top:6px}
.metric.primary .metric-detail{color:rgba(255,255,255,.75)}

.grid{display:grid;grid-template-columns:1.4fr 1fr;gap:14px}
.panel{background:#fff;border-radius:14px;box-shadow:var(--card-shadow);overflow:hidden}
.panel-title{padding:12px 16px;font-size:12px;font-weight:700;border-bottom:1px solid #f5f3ff}
table{width:100%;border-collapse:collapse;font-size:12px}
th{font-size:9px;text-transform:uppercase;color:var(--muted);text-align:left;padding:10px 16px;border-bottom:1px solid #f5f3ff}
td{padding:10px 16px;border-bottom:1px solid #faf9ff;white-space:nowrap}
tr:last-child td{border-bottom:0}
.customer{font-weight:700;display:block}
.ref{color:var(--muted);font-size:9px;display:block;margin-top:2px}

.status{display:inline-block;padding:4px 8px;border-radius:6px;font-size:9px;font-weight:700}
.status.attente{background:var(--yellow-bg);color:var(--yellow-ink)}
.status.encaisse{background:var(--green-bg);color:var(--green-ink)}
.status.rejete{background:var(--red-bg);color:var(--red-ink)}

.toolbar{display:flex;justify-content:space-between;align-items:center;margin-bottom:12px;gap:10px}
.small-btn{background:#ede9fe;color:var(--accent);border-radius:8px;padding:8px 12px;font-size:12px;font-weight:700}

dialog{border:0;border-radius:14px;padding:0;width:min(560px,calc(100% - 30px))}
dialog::backdrop{background:rgba(30,16,51,.45)}
.modal{padding:22px}
.modal-top{display:flex;justify-content:space-between;align-items:center;margin-bottom:18px}
.modal-top h2{font-size:15px;margin:0}
.close{font-size:20px;background:none;color:var(--muted)}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.form-grid label{display:grid;gap:5px;font-size:11px;font-weight:700}
.form-grid label.full{grid-column:1/-1}
.form-grid input,.form-grid select{border:1px solid #e4e4e7;border-radius:8px;padding:9px;font-size:12px}
.modal-actions{display:flex;justify-content:flex-end;gap:8px;margin-top:18px}
.cancel{background:#f4f4f5;color:#3f3f46;padding:9px 14px;border-radius:8px}
.save{background:var(--accent);color:#fff;padding:9px 14px;border-radius:8px;font-weight:700}
.error-banner{background:var(--red-bg);color:var(--red-ink);font-size:12px;padding:9px 11px;border-radius:8px;margin-bottom:12px}
.empty{padding:24px;color:var(--muted);font-size:12px;text-align:center}

@media(max-width:900px){.app{grid-template-columns:1fr}aside{display:none}.metrics,.grid{grid-template-columns:1fr 1fr}}
@media(max-width:600px){.metrics,.grid,.form-grid{grid-template-columns:1fr}}