:root{--primary:#2563eb;--primary-dark:#1d4ed8;--primary-light:#dbeafe;--success:#16a34a;--success-light:#dcfce7;--warning:#d97706;--warning-light:#fef3c7;--danger:#dc2626;--danger-light:#fee2e2;--gray-50:#f9fafb;--gray-100:#f3f4f6;--gray-200:#e5e7eb;--gray-300:#d1d5db;--gray-400:#9ca3af;--gray-500:#6b7280;--gray-600:#4b5563;--gray-700:#374151;--gray-800:#1f2937;--gray-900:#111827;--radius:8px;--shadow:0 1px 3px #0000001a,0 1px 2px #0000000f;--shadow-md:0 4px 6px #0000001a,0 2px 4px #0000000f}*{box-sizing:border-box;margin:0;padding:0}body{background:#f9fafb;background:var(--gray-50);color:#1f2937;color:var(--gray-800);font-family:Inter,-apple-system,BlinkMacSystemFont,sans-serif;line-height:1.6}.app-layout{display:flex;min-height:100vh}.sidebar{background:#111827;background:var(--gray-900);bottom:0;color:#fff;display:flex;flex-direction:column;left:0;padding:1.5rem 0;position:fixed;top:0;transition:width .2s ease;z-index:100}.sidebar-logo{border-bottom:1px solid #374151;border-bottom:1px solid var(--gray-700);color:#fff;font-size:1.5rem;font-weight:700;margin-bottom:1rem;padding:0 1.5rem 1.5rem;text-decoration:none}.sidebar-logo span{color:#2563eb;color:var(--primary)}.sidebar-nav{flex:1 1;list-style:none}.sidebar-nav a{align-items:center;color:#d1d5db;color:var(--gray-300);display:flex;font-size:.9rem;gap:.75rem;padding:.75rem 1.5rem;text-decoration:none;transition:all .15s}.sidebar-nav a.active,.sidebar-nav a:hover{background:#1f2937;background:var(--gray-800);color:#fff}.sidebar-nav a.active{border-left:3px solid #2563eb;border-left:3px solid var(--primary)}.main-content{flex:1 1;padding:2rem;transition:margin-left .2s ease}.page-header{align-items:center;display:flex;justify-content:space-between;margin-bottom:2rem}.page-header h1{color:#111827;color:var(--gray-900);font-size:1.75rem;font-weight:700}.card{background:#fff;border-radius:8px;border-radius:var(--radius);box-shadow:0 1px 3px #0000001a,0 1px 2px #0000000f;box-shadow:var(--shadow);padding:1.5rem}.card-header{align-items:center;border-bottom:1px solid #e5e7eb;border-bottom:1px solid var(--gray-200);display:flex;justify-content:space-between;margin-bottom:1rem;padding-bottom:.75rem}.stats-grid{grid-gap:1rem;display:grid;gap:1rem;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));margin-bottom:2rem}.stat-card{background:#fff;border-radius:8px;border-radius:var(--radius);box-shadow:0 1px 3px #0000001a,0 1px 2px #0000000f;box-shadow:var(--shadow);padding:1.25rem}.stat-card .stat-label{color:#6b7280;color:var(--gray-500);font-size:.8rem;letter-spacing:.05em;text-transform:uppercase}.stat-card .stat-value{color:#111827;color:var(--gray-900);font-size:1.75rem;font-weight:700;margin-top:.25rem}.stat-card .stat-detail{color:#6b7280;color:var(--gray-500);font-size:.85rem;margin-top:.25rem}.table-container{overflow-x:auto}table{border-collapse:collapse;width:100%}table th{background:#f9fafb;background:var(--gray-50);border-bottom:1px solid #e5e7eb;border-bottom:1px solid var(--gray-200);color:#6b7280;color:var(--gray-500);font-size:.8rem;font-weight:600;letter-spacing:.05em;text-align:left;text-transform:uppercase}table td,table th{padding:.75rem 1rem}table td{border-bottom:1px solid #f3f4f6;border-bottom:1px solid var(--gray-100);font-size:.9rem}table tr:hover{background:#f9fafb;background:var(--gray-50)}.badge{border-radius:9999px;display:inline-block;font-size:.75rem;font-weight:500;padding:.2rem .65rem}.badge-brouillon{background:#e5e7eb;background:var(--gray-200);color:#374151;color:var(--gray-700)}.badge-envoye{background:#dbeafe;background:var(--primary-light);color:#1d4ed8;color:var(--primary-dark)}.badge-accepte{background:#dcfce7;background:var(--success-light);color:#16a34a;color:var(--success)}.badge-refuse{background:#fee2e2;background:var(--danger-light);color:#dc2626;color:var(--danger)}.badge-expire{background:#fef3c7;background:var(--warning-light);color:#d97706;color:var(--warning)}.btn{align-items:center;border:none;border-radius:8px;border-radius:var(--radius);cursor:pointer;display:inline-flex;font-size:.9rem;font-weight:500;gap:.5rem;padding:.6rem 1.2rem;text-decoration:none;transition:all .15s}.btn-primary{background:#2563eb;background:var(--primary);color:#fff}.btn-primary:hover{background:#1d4ed8;background:var(--primary-dark)}.btn-secondary{background:#fff;border:1px solid #d1d5db;border:1px solid var(--gray-300);color:#374151;color:var(--gray-700)}.btn-secondary:hover{background:#f9fafb;background:var(--gray-50)}.btn-danger{background:#dc2626;background:var(--danger);color:#fff}.btn-danger:hover{background:#b91c1c}.btn-sm{font-size:.8rem;padding:.35rem .75rem}.form-group{margin-bottom:1.25rem}.form-group label{color:#374151;color:var(--gray-700);display:block;font-size:.85rem;font-weight:500;margin-bottom:.35rem}.form-group input,.form-group select,.form-group textarea{border:1px solid #d1d5db;border:1px solid var(--gray-300);border-radius:8px;border-radius:var(--radius);font-family:inherit;font-size:.9rem;padding:.6rem .8rem;transition:border-color .15s;width:100%}.form-group input:focus,.form-group select:focus,.form-group textarea:focus{border-color:#2563eb;border-color:var(--primary);box-shadow:0 0 0 3px #2563eb1a;outline:none}.form-row{grid-gap:1rem;display:grid;gap:1rem;grid-template-columns:1fr 1fr}.form-row-3{grid-gap:1rem;display:grid;gap:1rem;grid-template-columns:1fr 1fr 1fr}.alert{border-radius:8px;border-radius:var(--radius);font-size:.9rem;margin-bottom:1rem;padding:.75rem 1rem}.alert-error{background:#fee2e2;background:var(--danger-light);border:1px solid #fca5a5;color:#dc2626;color:var(--danger)}.alert-success{background:#dcfce7;background:var(--success-light);border:1px solid #86efac;color:#16a34a;color:var(--success)}.auth-container{align-items:center;background:linear-gradient(135deg,#111827,#1d4ed8);background:linear-gradient(135deg,var(--gray-900) 0,var(--primary-dark) 100%);display:flex;justify-content:center;min-height:100vh}.auth-card{background:#fff;border-radius:12px;box-shadow:0 20px 60px #0000004d;max-width:420px;padding:2.5rem;width:100%}.auth-card h1{font-size:1.75rem;margin-bottom:.5rem;text-align:center}.auth-card .subtitle{color:#6b7280;color:var(--gray-500);margin-bottom:2rem;text-align:center}details summary::-webkit-details-marker{display:none}details[open] summary span:first-child{transform:rotate(90deg)}.montant{font-feature-settings:"tnum";font-variant-numeric:tabular-nums}.montant-ht{color:#374151;color:var(--gray-700)}.montant-ttc{color:#111827;color:var(--gray-900);font-weight:600}.montant-depassement{color:#dc2626;color:var(--danger);font-weight:600}.mobile-header{align-items:center;background:#111827;background:var(--gray-900);color:#fff;display:none;height:56px;justify-content:space-between;left:0;padding:0 1rem;position:fixed;right:0;top:0;z-index:200}.mobile-burger{background:none;border:none;color:#fff;cursor:pointer;font-size:1.5rem;padding:.25rem}.mobile-overlay{background:#00000080;bottom:0;display:none;left:0;position:fixed;right:0;top:0;z-index:150}.mobile-overlay.open{display:block}@media (max-width:768px){.mobile-header,.sidebar{display:flex}.sidebar{transform:translateX(-100%);transition:transform .25s ease;width:280px!important;z-index:200}.sidebar.mobile-open{transform:translateX(0)}.main-content{margin-left:0!important;padding:calc(56px + 1rem) 1rem 1rem}.form-row,.form-row-3{grid-template-columns:1fr}.stats-grid{grid-template-columns:1fr 1fr}.table-container{-webkit-overflow-scrolling:touch;overflow-x:auto}table{min-width:600px}.card{padding:1rem}.page-header{align-items:flex-start;flex-direction:column;gap:.75rem}.page-header>div:last-child{flex-wrap:wrap}input,select,textarea{font-size:16px!important}}@keyframes spin{to{transform:rotate(1turn)}}