:root{--bg:#f4f6f8;--panel:#fff;--text:#111827;--muted:#6b7280;--line:#e5e7eb;--dark:#111827;--danger:#b91c1c}*{box-sizing:border-box}body{margin:0;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",Arial,sans-serif;background:var(--bg);color:var(--text)}a{color:inherit}.app-shell{display:grid;grid-template-columns:230px 1fr;min-height:100vh}.sidebar{background:#0b1020;color:#fff;padding:24px 18px;display:flex;flex-direction:column;position:sticky;top:0;height:100vh}.brand{display:flex;align-items:center;gap:12px;margin-bottom:35px}.brand-mark,.login-logo{width:42px;height:42px;border-radius:13px;background:#fff;color:#0b1020;display:grid;place-items:center;font-size:24px;font-weight:900}.brand strong{display:block;font-size:18px}.brand span{display:block;color:#94a3b8;font-size:11px;margin-top:2px}.sidebar nav{display:grid;gap:7px}.sidebar nav a,.sidebar-bottom a{text-decoration:none;padding:11px 12px;border-radius:10px;color:#cbd5e1}.sidebar nav a:hover,.sidebar-bottom a:hover{background:#151c31;color:#fff}.sidebar-bottom{margin-top:auto}.content{padding:30px 36px}.topbar{display:flex;justify-content:space-between;align-items:center;margin-bottom:24px}.topbar h1{margin:0;font-size:28px}.topbar p{margin:5px 0 0;color:var(--muted);font-size:13px}.btn{display:inline-flex;align-items:center;justify-content:center;border:1px solid #d1d5db;background:#fff;color:#111827;border-radius:10px;padding:10px 14px;text-decoration:none;font-weight:700;font-size:13px;cursor:pointer}.btn.primary{background:#111827;color:#fff;border-color:#111827}.btn.danger{background:#fff5f5;color:var(--danger);border-color:#fecaca}.btn.full{width:100%}.stats{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-bottom:18px}.stat,.card{background:#fff;border:1px solid var(--line);border-radius:16px;box-shadow:0 4px 16px rgba(15,23,42,.035)}.stat{padding:20px}.stat span{display:block;color:var(--muted);font-size:12px;margin-bottom:8px}.stat strong{font-size:24px}.card{padding:22px;margin-bottom:18px}.card h2{font-size:16px;margin:0 0 18px}.card-head{display:flex;justify-content:space-between;margin-bottom:14px}.search{display:flex;gap:8px;width:min(520px,100%)}input,select,textarea{width:100%;border:1px solid #d1d5db;border-radius:9px;padding:10px 11px;background:#fff;font:inherit;color:#111827;outline:none}input:focus,select:focus,textarea:focus{border-color:#6b7280;box-shadow:0 0 0 3px rgba(17,24,39,.06)}label{display:grid;gap:7px;font-size:12px;font-weight:700;color:#374151;margin-bottom:13px}.table-wrap{overflow:auto}table{width:100%;border-collapse:collapse}th{font-size:11px;color:#6b7280;text-align:left;padding:10px;border-bottom:1px solid var(--line);text-transform:uppercase;letter-spacing:.04em}td{padding:13px 10px;border-bottom:1px solid #eef0f3;font-size:13px}td small{display:block;color:#9ca3af;margin-top:3px}.right{text-align:right}.actions{white-space:nowrap;text-align:right}.actions a{font-size:12px;color:#4b5563;margin-left:10px}.invoice-link{font-weight:800;text-decoration:none}.badge{display:inline-block;border:1px solid #d1d5db;border-radius:7px;padding:4px 7px;font-size:10px;font-weight:800}.badge.proforma{background:#fffbeb;border-color:#fde68a;color:#92400e}.status{font-size:11px;font-weight:700}.status.paid{color:#047857}.status.cancelled{color:#b91c1c}.status.issued{color:#334155}.empty{text-align:center;color:#9ca3af;padding:30px}.grid.two{display:grid;grid-template-columns:1fr 1fr;gap:18px}.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:0 12px}.form-grid.one{display:block}.card-title-row{display:flex;justify-content:space-between;align-items:center}.item-row{display:grid;grid-template-columns:minmax(280px,1fr) 110px 150px 130px 42px;gap:8px;align-items:center;border-bottom:1px solid #eef0f3;padding:7px 0}.item-head{font-size:10px;font-weight:800;color:#6b7280;text-transform:uppercase}.line-total{text-align:right;font-weight:800;font-size:13px}.icon-btn{border:0;background:#f3f4f6;width:34px;height:34px;border-radius:9px;font-size:20px;cursor:pointer}.invoice-options{display:grid;grid-template-columns:180px 1fr auto;gap:18px;align-items:center;margin:20px 0}.check{display:flex;grid-template-columns:auto 1fr;align-items:center;gap:9px;margin:0}.check input{width:auto}.live-total{text-align:right}.live-total span{display:block;color:#6b7280;font-size:11px}.live-total strong{font-size:21px}.form-actions{display:flex;justify-content:flex-end;gap:10px;margin-top:18px}.danger-zone{display:flex;justify-content:space-between;align-items:center;border-color:#fee2e2}.danger-zone h2{margin-bottom:4px;color:#991b1b}.danger-zone p{margin:0;color:#6b7280;font-size:12px}.alert{padding:12px 14px;border-radius:10px;margin-bottom:16px;font-size:13px}.alert.success{background:#ecfdf5;color:#065f46;border:1px solid #a7f3d0}.alert.error{background:#fef2f2;color:#991b1b;border:1px solid #fecaca}.details{display:grid;gap:6px;font-size:13px}.details span{color:#4b5563}.details hr{width:100%;border:0;border-top:1px solid #e5e7eb}.muted{color:#6b7280;font-size:12px}.login-page{min-height:100vh;display:grid;place-items:center;background:radial-gradient(circle at top,#202942,#0b1020 55%)}.login-card{width:min(420px,calc(100% - 32px));background:#fff;border-radius:20px;padding:32px;box-shadow:0 25px 80px rgba(0,0,0,.35)}.login-logo{background:#111827;color:#fff;margin-bottom:20px}.login-card h1{font-size:24px;margin:0 0 6px}.login-card>p{color:#6b7280;margin:0 0 22px}.login-hint{margin-top:18px;padding-top:16px;border-top:1px solid #e5e7eb;color:#6b7280;font-size:11px;line-height:1.6}@media(max-width:900px){.app-shell{grid-template-columns:1fr}.sidebar{height:auto;position:relative;display:block}.sidebar nav{grid-template-columns:repeat(3,1fr)}.sidebar-bottom{margin-top:12px}.content{padding:20px}.grid.two,.stats{grid-template-columns:1fr}.item-row{grid-template-columns:1fr 80px 110px 90px 36px}.invoice-options{grid-template-columns:1fr}.topbar{align-items:flex-start;gap:15px}.topbar .btn{white-space:nowrap}}