:root{--bg: #eef3f8;--card: #ffffff;--text: #1f2937;--muted: #6b7280;--primary: #1a5276;--primary-dark: #123a56;--primary-soft: #e8f1f7;--border: #d5dee6;--danger: #b91c1c;--ok: #0f766e;--shadow: 0 8px 24px rgba(18, 58, 86, .08)}*{box-sizing:border-box}body{margin:0;font-family:Segoe UI,Tahoma,Arial,sans-serif;background:var(--bg);color:var(--text)}a{color:var(--primary);text-decoration:none}h2{margin:0 0 4px;font-size:1.45rem}.app-shell{min-height:100vh}.topbar{display:flex;justify-content:space-between;align-items:center;padding:10px 20px;background:linear-gradient(90deg,#123a56,#1a5276);color:#fff;gap:12px;box-shadow:0 2px 10px #123a562e}.brand{display:flex;align-items:center;gap:10px;font-weight:700;font-size:18px;color:#fff}.brand-logo{width:40px;height:40px;object-fit:contain;background:#fff;border-radius:10px;padding:4px;box-shadow:0 1px 4px #0000001f}.auth-logo{width:64px;height:64px;display:block;margin:0 auto 8px}.auth-header{width:100%;max-width:420px;height:auto;display:block;margin:0 auto 12px}.nav-toggle{display:none;width:42px;height:36px;padding:8px 9px;background:#ffffff1f;border:1px solid rgba(255,255,255,.28);border-radius:8px;cursor:pointer;flex-direction:column;justify-content:center;gap:5px}.nav-toggle span{display:block;height:2px;background:#fff;border-radius:2px}.nav-links{display:flex;gap:14px;align-items:center}.nav-links a{color:#fff;font-size:14px;padding:6px 4px}.nav-links a:hover{opacity:.85}.user-chip{font-size:13px;color:#ffffffd9}.topbar .btn-secondary{background:#ffffff24;color:#fff;border:1px solid rgba(255,255,255,.28)}.main-content{padding:22px 20px 32px;max-width:1200px;margin:0 auto}.page-center{min-height:70vh;display:flex;align-items:center;justify-content:center;padding:24px}.auth-card,.panel{background:var(--card);border:1px solid var(--border);border-radius:12px;padding:24px;box-shadow:var(--shadow)}.auth-card{width:100%;max-width:420px}.auth-wrap{min-height:80vh;display:flex;align-items:center;justify-content:center;padding:20px}.form-grid{display:grid;gap:12px}label{display:grid;gap:4px;font-size:14px}input,select{padding:9px 11px;border:1px solid var(--border);border-radius:8px;font-size:14px;background:#fff}input:focus,select:focus{outline:2px solid #9ec3d8;border-color:var(--primary)}.Amount-input,.Integer-input{text-align:right;font-variant-numeric:tabular-nums}.btn-primary,.btn-secondary,.btn-danger{border:none;border-radius:8px;padding:9px 16px;cursor:pointer;font-size:14px;font-weight:600}.btn-primary{background:var(--primary);color:#fff}.btn-primary:hover:not(:disabled){background:var(--primary-dark)}.btn-primary:disabled,.btn-secondary:disabled{opacity:.65;cursor:default}.btn-secondary{background:#e8eef3;color:var(--text)}.btn-danger{background:var(--danger);color:#fff}.btn-compact{padding:6px 12px;font-size:13px}.muted{color:var(--muted);font-size:13px}.error,.notice{border-radius:8px;padding:10px 12px;font-size:13px;margin:0 0 12px}.error{color:var(--danger);background:#fef2f2;border:1px solid #fecaca}.notice-ok{color:var(--ok);background:#f0fdfa;border:1px solid #99f6e4}.summary-cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:12px;margin-bottom:16px}.summary-card{background:var(--card);border:1px solid var(--border);border-radius:12px;padding:14px 16px;box-shadow:var(--shadow);border-left:4px solid var(--primary)}.summary-card.accent-invoice{border-left-color:#1a5276}.summary-card.accent-proforma{border-left-color:#b45309}.summary-card.accent-return{border-left-color:#be123c}.summary-card.accent-items{border-left-color:#0f766e}.summary-card .label{font-size:13px;color:var(--muted)}.summary-card .value{font-size:24px;font-weight:700;margin-top:4px;font-variant-numeric:tabular-nums}.summary-card .value.is-loading{color:var(--muted);font-weight:600}.toolbar{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:14px;align-items:end;justify-content:space-between}.toolbar-actions{display:flex;flex-direction:column;align-items:stretch;gap:4px}.date-filter-label{font-size:13px}.toolbar-date-row{display:flex;flex-direction:row;align-items:center;gap:8px}.toolbar-date-row .btn-primary,.toolbar-date-row .btn-secondary{flex:1 1 0}.Date-input{width:10.5rem;text-align:center;padding:8px 10px;border:1px solid var(--border);border-radius:8px}.data-table{width:100%;border-collapse:collapse;background:var(--card)}.data-table th,.data-table td{border-bottom:1px solid var(--border);padding:9px 10px;font-size:13px}.data-table tbody tr:hover{background:#f7fbfe}.col-sno{width:1%;white-space:nowrap;padding-left:4px;padding-right:4px}.col-date{min-width:5.8rem;white-space:nowrap}.data-table th{background:#e8f1f7;color:#16384f;font-weight:700}.text-left{text-align:left}.text-center{text-align:center}.List-Amount-td,.amount-cell{text-align:right;font-variant-numeric:tabular-nums}.type-chip,.badge{display:inline-block;padding:2px 8px;border-radius:999px;font-size:11px;font-weight:700;letter-spacing:.02em;line-height:1.5;white-space:nowrap}.type-invoice{background:#e8f1f7;color:#1a5276}.type-proforma{background:#fff7ed;color:#b45309}.type-return{background:#fff1f2;color:#be123c}.badge-sent{background:#e8f1f7;color:#1a5276}.badge-delivered{background:#ecfeff;color:#0e7490}.badge-read{background:#ecfdf5;color:#047857}.badge-failed{background:#fef2f2;color:#b91c1c}.badge-pending{background:#fffbeb;color:#b45309}.modal-backdrop{position:fixed;top:0;right:0;bottom:0;left:0;background:#123a5673;display:flex;align-items:center;justify-content:center;padding:16px;z-index:40}.modal{background:var(--card);border-radius:12px;padding:22px;width:100%;max-width:420px;box-shadow:0 16px 40px #123a5633}.modal h3{margin:0 0 8px}.modal-actions{display:flex;justify-content:flex-end;gap:8px;margin-top:16px}.table-wrap{overflow-x:auto;padding:0}.lookup-bar{display:flex;flex-direction:row;align-items:center;gap:8px;padding:8px 10px;margin-bottom:12px}.lookup-field{display:flex;flex-direction:row;align-items:center;gap:8px;min-width:0}.lookup-field span{flex:0 0 auto;white-space:nowrap}.lookup-field input{width:6.5rem;flex:0 0 auto}.lookup-bar .btn-primary{flex:0 0 auto;white-space:nowrap;min-height:36px;padding:6px 12px}.btn-block{width:100%}.card-list{display:none}.txn-card{background:var(--card);border:1px solid var(--border);border-radius:12px;padding:14px;margin-bottom:10px;box-shadow:var(--shadow)}.txn-card-head{display:flex;flex-wrap:wrap;gap:8px;align-items:center}.txn-serial{min-width:2rem;text-align:center;font-variant-numeric:tabular-nums;font-weight:700;color:var(--primary)}.txn-customer{margin:10px 0;font-weight:600}.txn-meta{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin:0 0 12px}.txn-meta dt{color:var(--muted);font-size:12px}.txn-meta dd{margin:0;font-size:14px;text-align:left}.empty-cell,.empty-note{text-align:center;color:var(--muted);padding:28px 12px}.loader-overlay{position:fixed;top:0;right:0;bottom:0;left:0;z-index:50;display:flex;align-items:center;justify-content:center;padding:20px;background:#eef3f8e0}.loader-panel{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:20px;min-height:280px;width:min(340px,100%);padding:28px 20px;background:#fff;border:1px solid var(--border);border-radius:16px;box-shadow:var(--shadow)}.loader-mark{position:relative;width:132px;height:132px;display:flex;align-items:center;justify-content:center}.loader-orbit{position:absolute;top:0;right:0;bottom:0;left:0;border-radius:50%;border:2px solid transparent;border-top-color:#c0392b;border-right-color:#1a527640;animation:loader-spin 1.1s linear infinite}.loader-logo{width:84px;height:84px;object-fit:contain;animation:loader-pulse 1.6s ease-in-out infinite}.loader-label{margin:0;font-size:15px;font-weight:600;color:#1a5276}@keyframes loader-spin{to{transform:rotate(360deg)}}@keyframes loader-pulse{0%,to{transform:scale(1)}50%{transform:scale(.94)}}@media (max-width: 800px){h2{font-size:1.2rem}.nav-toggle{display:flex}.nav-links{display:none;position:absolute;top:60px;right:12px;left:12px;background:#fff;color:var(--text);flex-direction:column;align-items:stretch;padding:12px;border-radius:12px;z-index:20;box-shadow:0 12px 28px #123a562e}.nav-links.is-open{display:flex}.nav-links.is-open a,.nav-links.is-open .user-chip{color:var(--primary-dark);padding:10px 8px}.nav-links.is-open .btn-secondary{background:#e8eef3;color:var(--text);border:none;min-height:44px}.topbar{position:sticky;top:0;z-index:30;padding:10px 12px}.main-content{padding:12px 12px 28px}.desktop-table{display:none}.card-list{display:block}.summary-cards{grid-template-columns:1fr 1fr;gap:8px}.summary-card{padding:12px}.summary-card .value{font-size:22px}.toolbar,.toolbar-actions,.toolbar-date-row{width:100%}.toolbar{flex-direction:column;align-items:stretch;margin-bottom:10px}.Date-input{width:10.5rem;flex:0 0 auto}.btn-primary,.btn-secondary{min-height:44px}.lookup-bar{flex-direction:row;align-items:center;padding:8px 10px;gap:8px;margin-bottom:10px}.lookup-send-full{display:none}.loader-overlay{padding:16px;background:#eef3f8f0}.loader-panel{min-height:220px;width:min(300px,calc(100vw - 32px))}.txn-card-head{gap:6px}.panel{padding:14px}.panel.lookup-bar{padding:8px 10px}}