:root{--bg:#f5f7fb;--card:#fff;--text:#1f2937;--muted:#6b7280;--line:#e5e7eb;--main:#1f6f78;--dark:#0f172a;--green:#16803a;--red:#b42318;--gold:#a16207}
*{box-sizing:border-box}body{margin:0;background:var(--bg);font-family:Tahoma,Arial,sans-serif;color:var(--text);font-size:14px}a{text-decoration:none;color:inherit}.layout{display:flex;min-height:100vh}.sidebar{width:260px;background:linear-gradient(180deg,#0f172a,#17464f);color:#fff;position:fixed;top:0;bottom:0;right:0;overflow:auto}.brand{padding:22px;border-bottom:1px solid rgba(255,255,255,.1);display:flex;flex-direction:column;gap:6px}.brand img{max-width:80px;max-height:70px;object-fit:contain;background:#fff;border-radius:12px;padding:6px}.brand small{color:#cbd5e1}nav{padding:10px}nav a{display:flex;gap:10px;align-items:center;padding:11px 12px;border-radius:12px;margin:4px 0;color:#eef2ff}nav a:hover{background:rgba(255,255,255,.12)}.content{margin-right:260px;width:calc(100% - 260px);padding:18px}.topbar{background:#fff;border:1px solid var(--line);border-radius:16px;padding:12px 16px;margin-bottom:14px;display:flex;justify-content:space-between;align-items:center}.menu{display:none}.card{background:var(--card);border:1px solid var(--line);border-radius:18px;padding:18px;margin-bottom:16px;box-shadow:0 8px 22px rgba(15,23,42,.04)}.cards{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px}.stat{background:#fff;border:1px solid var(--line);border-radius:18px;padding:16px}.stat span{color:var(--muted);display:block}.stat strong{font-size:24px;margin-top:8px;display:block}.grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}.form-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}.field label{display:block;margin-bottom:6px;color:#374151;font-weight:bold}input,select,textarea{width:100%;border:1px solid #cbd5e1;border-radius:12px;padding:10px;background:#fff;color:#111827}textarea{min-height:80px}.btn{display:inline-block;border:0;border-radius:12px;background:var(--main);color:#fff;padding:10px 14px;cursor:pointer;margin:2px}.btn.secondary{background:#475569}.btn.danger{background:var(--red)}.btn.green{background:var(--green)}.btn.gold{background:var(--gold)}.btn.light{background:#eef2ff;color:#1e293b}.actions{display:flex;gap:6px;flex-wrap:wrap}.table-wrap{overflow:auto;border:1px solid var(--line);border-radius:14px;background:#fff}table{width:100%;border-collapse:collapse;min-width:760px}th,td{border-bottom:1px solid var(--line);padding:11px;text-align:right;vertical-align:top}th{background:#f8fafc;color:#334155;white-space:nowrap}.badge{padding:5px 9px;border-radius:999px;background:#e0f2fe;color:#075985;display:inline-block}.badge.red{background:#fee2e2;color:#991b1b}.badge.green{background:#dcfce7;color:#166534}.alert{padding:12px 14px;border-radius:14px;margin-bottom:14px}.alert.success{background:#dcfce7;color:#166534}.alert.error{background:#fee2e2;color:#991b1b}.login-page{min-height:100vh;display:flex;align-items:center;justify-content:center;background:radial-gradient(circle at top,#e0f2fe,#f8fafc 55%)}.login-card{width:420px;max-width:94%;background:#fff;border:1px solid var(--line);border-radius:24px;padding:26px;box-shadow:0 20px 50px rgba(15,23,42,.12)}.invoice{background:#fff;color:#111;padding:26px}.invoice-head{display:flex;justify-content:space-between;gap:20px;border-bottom:2px solid #111;padding-bottom:16px;margin-bottom:18px}.print-only{display:none}.low{color:var(--red);font-weight:bold}.toolbar{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:12px}.muted{color:var(--muted)}.chart{height:220px;border:1px dashed #cbd5e1;border-radius:16px;display:flex;align-items:end;gap:6px;padding:12px;background:#f8fafc}.bar{background:#1f6f78;border-radius:8px 8px 0 0;min-width:24px;flex:1}.bar-label{text-align:center;font-size:11px;color:#64748b}.line{border-top:1px solid var(--line);margin:14px 0}.checkbox-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:8px}.check{background:#f8fafc;border:1px solid #e2e8f0;border-radius:12px;padding:8px} @media(max-width:950px){.sidebar{right:-270px;z-index:10}.content{margin-right:0;width:100%}.open .sidebar{right:0}.menu{display:block}.cards,.grid,.form-grid{grid-template-columns:1fr}.checkbox-grid{grid-template-columns:1fr 1fr}}@media print{.sidebar,.topbar,.toolbar,.no-print,.btn,.alert{display:none!important}.content{margin:0;width:100%;padding:0}.card{border:0;box-shadow:none}.print-only{display:block}body{background:#fff}table{min-width:0}}