.sa-app{--sa-bg:#f4f6f9;--sa-card:#ffffff;--sa-border:#e3e7ee;--sa-text:#1f2937;--sa-muted:#6b7280;--sa-primary:#2563eb;--sa-primary-dark:#1d4ed8;--sa-green:#16a34a;--sa-red:#dc2626;--sa-amber:#d97706;--sa-radius:10px;
	font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;color:var(--sa-text);background:var(--sa-bg);border-radius:var(--sa-radius);padding:0;max-width:1200px;margin:0 auto;line-height:1.4;}
.sa-app *{box-sizing:border-box;}
.sa-app a{color:var(--sa-primary);}
.sa-loading{padding:60px;text-align:center;color:var(--sa-muted);font-size:16px;}
.sa-login-notice{padding:40px;text-align:center;background:var(--sa-card);border-radius:var(--sa-radius);}

.sa-header{display:flex;align-items:center;justify-content:space-between;padding:16px 20px;background:var(--sa-card);border-radius:var(--sa-radius) var(--sa-radius) 0 0;border:1px solid var(--sa-border);}
.sa-header h1{font-size:18px;margin:0;font-weight:700;}
.sa-header .sa-user{font-size:13px;color:var(--sa-muted);}

.sa-tabs{display:flex;flex-wrap:wrap;gap:4px;background:var(--sa-card);border:1px solid var(--sa-border);border-top:none;padding:8px 12px;}
.sa-tab{padding:8px 14px;border-radius:8px;font-size:13px;font-weight:600;cursor:pointer;color:var(--sa-muted);background:transparent;border:none;}
.sa-tab:hover{background:var(--sa-bg);}
.sa-tab.active{background:var(--sa-primary);color:#fff;}

.sa-body{background:var(--sa-bg);border:1px solid var(--sa-border);border-top:none;border-radius:0 0 var(--sa-radius) var(--sa-radius);padding:20px;min-height:400px;}

.sa-cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:12px;margin-bottom:20px;}
.sa-card{background:var(--sa-card);border:1px solid var(--sa-border);border-radius:var(--sa-radius);padding:16px;}
.sa-card .sa-card-label{font-size:12px;color:var(--sa-muted);font-weight:600;text-transform:uppercase;letter-spacing:.03em;margin-bottom:6px;}
.sa-card .sa-card-value{font-size:22px;font-weight:800;}
.sa-card.positive .sa-card-value{color:var(--sa-green);}
.sa-card.negative .sa-card-value{color:var(--sa-red);}

.sa-panel{background:var(--sa-card);border:1px solid var(--sa-border);border-radius:var(--sa-radius);padding:16px;margin-bottom:16px;}
.sa-panel h2{font-size:15px;margin:0 0 12px;font-weight:700;}

.sa-toolbar{display:flex;flex-wrap:wrap;gap:8px;align-items:center;margin-bottom:14px;}
.sa-toolbar input[type=text],.sa-toolbar input[type=date],.sa-toolbar select{padding:7px 10px;border:1px solid var(--sa-border);border-radius:7px;font-size:13px;}
.sa-spacer{flex:1;}

.sa-app .sa-btn{display:inline-flex !important;align-items:center;gap:6px;padding:8px 14px;border-radius:7px;border:1px solid var(--sa-border,#e3e7ee);background:#ffffff !important;font-size:13px;font-weight:600;line-height:1.3;cursor:pointer;color:#1f2937 !important;box-shadow:none !important;text-shadow:none !important;text-transform:none !important;letter-spacing:normal !important;opacity:1 !important;visibility:visible !important;width:auto;height:auto;min-width:0;}
.sa-app .sa-btn:hover{background:var(--sa-bg,#f4f6f9) !important;}
.sa-app .sa-btn.primary{background:var(--sa-primary,#2563eb) !important;border-color:var(--sa-primary,#2563eb) !important;color:#ffffff !important;}
.sa-app .sa-btn.primary:hover{background:var(--sa-primary-dark,#1d4ed8) !important;}
.sa-app .sa-btn.danger{color:var(--sa-red,#dc2626) !important;border-color:#fbdada;}
.sa-app .sa-btn.small{padding:5px 9px;font-size:12px;}

table.sa-table{width:100%;border-collapse:collapse;font-size:13px;background:#fff;}
table.sa-table th{text-align:left;font-size:11px;text-transform:uppercase;letter-spacing:.03em;color:var(--sa-muted);border-bottom:2px solid var(--sa-border);padding:8px 10px;white-space:nowrap;}
table.sa-table td{padding:9px 10px;border-bottom:1px solid var(--sa-border);vertical-align:top;}
table.sa-table tr:last-child td{border-bottom:none;}
.sa-table-wrap{overflow-x:auto;background:#fff;border:1px solid var(--sa-border);border-radius:var(--sa-radius);}

.sa-badge{display:inline-block;padding:2px 8px;border-radius:100px;font-size:11px;font-weight:700;text-transform:uppercase;}
.sa-badge.paid{background:#dcfce7;color:#15803d;}
.sa-badge.partial{background:#fef3c7;color:#b45309;}
.sa-badge.due{background:#fee2e2;color:#b91c1c;}
.sa-badge.voided{background:#e5e7eb;color:#6b7280;}

.sa-modal-backdrop{position:fixed;inset:0;background:rgba(15,23,42,.5);display:flex;align-items:center;justify-content:center;z-index:9999;padding:20px;}
.sa-modal{background:#fff;border-radius:12px;width:100%;max-width:560px;max-height:90vh;overflow-y:auto;padding:22px;}
.sa-modal h3{margin:0 0 16px;font-size:16px;}
.sa-modal .sa-close{float:right;cursor:pointer;font-size:20px;color:var(--sa-muted);line-height:1;}

.sa-form-row{margin-bottom:12px;}
.sa-form-row label{display:block;font-size:12px;font-weight:600;color:var(--sa-muted);margin-bottom:4px;}
.sa-form-row input[type=text],.sa-form-row input[type=number],.sa-form-row input[type=date],.sa-form-row select,.sa-form-row textarea{width:100%;padding:9px 10px;border:1px solid var(--sa-border);border-radius:7px;font-size:13px;font-family:inherit;}
.sa-form-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px;}
.sa-form-actions{display:flex;justify-content:flex-end;gap:8px;margin-top:16px;}

.sa-payment-row{display:flex;gap:8px;margin-bottom:8px;align-items:center;}
.sa-payment-row select,.sa-payment-row input{flex:1;}
.sa-payment-total{font-size:13px;margin-top:8px;padding:10px;background:var(--sa-bg);border-radius:7px;}
.sa-payment-total.balanced{color:var(--sa-green);font-weight:700;}
.sa-payment-total.unbalanced{color:var(--sa-amber);font-weight:700;}

.sa-error{background:#fee2e2;color:#b91c1c;padding:10px 12px;border-radius:7px;font-size:13px;margin-bottom:12px;}
.sa-success{background:#dcfce7;color:#15803d;padding:10px 12px;border-radius:7px;font-size:13px;margin-bottom:12px;}
.sa-muted{color:var(--sa-muted);}
.sa-right{text-align:right;}
.sa-empty{padding:30px;text-align:center;color:var(--sa-muted);}

@media(max-width:640px){.sa-form-grid{grid-template-columns:1fr;} .sa-cards{grid-template-columns:1fr 1fr;}}