:root{--primary-blue: #2563eb;--primary-dark: #1e40af;--primary-light: #dbeafe;--white: #ffffff;--gray-50: #f9fafb;--gray-100: #f3f4f6;--gray-200: #e5e7eb;--gray-600: #4b5563;--gray-800: #1f2937;--gray-900: #111827;--success-green: #10b981;--warning-yellow: #fbbf24;--danger-red: #ef4444}*{margin:0;padding:0;box-sizing:border-box}body{font-family:Sarabun,Inter,-apple-system,sans-serif;color:var(--gray-800);line-height:1.6;background:var(--gray-50)}.container{max-width:1400px;margin:0 auto;padding:0 20px}.invoice-container{background:#fff;padding:40px;border-radius:12px;box-shadow:0 2px 8px #0000001a}.invoice-header{display:flex;justify-content:space-between;align-items:flex-start;margin-bottom:24px;padding-bottom:16px;border-bottom:2px solid var(--primary-blue)}.company-details p{font-size:12px;color:var(--gray-600);margin:2px 0}.invoice-title{font-size:28px;font-weight:700;color:var(--primary-blue);margin:0}.invoice-title-en{font-size:14px;color:var(--gray-600);margin:4px 0 0}.info-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-bottom:24px}.info-box{border:1px solid var(--gray-200);border-radius:8px;padding:16px;background:var(--gray-50)}.info-label{font-weight:700;font-size:12px;color:var(--primary-blue);margin-bottom:8px;padding-bottom:6px;border-bottom:1px solid var(--gray-200)}.info-row{display:flex;justify-content:space-between;margin-bottom:6px;font-size:12px}.info-row .label{color:var(--gray-600);font-weight:500}.info-row .value{font-weight:600;color:var(--gray-900)}.section{margin-bottom:20px}.section-title{font-size:14px;font-weight:700;color:var(--primary-blue);margin:0 0 12px;padding-bottom:8px;border-bottom:2px solid var(--primary-blue);display:flex;justify-content:space-between;align-items:center}.invoice-table{width:100%;border-collapse:collapse;font-size:12px;margin-bottom:16px;border:1px solid var(--gray-200);border-radius:8px;overflow:hidden}.invoice-table thead{background:var(--primary-blue);color:#fff}.invoice-table th{padding:10px 12px;text-align:left;font-weight:600;font-size:11px;border:1px solid rgba(255,255,255,.2)}.invoice-table th.text-right{text-align:right}.invoice-table th.text-center{text-align:center}.invoice-table tbody tr{border-bottom:1px solid var(--gray-200)}.invoice-table tbody tr:hover{background:var(--gray-50)}.invoice-table td{padding:8px 12px;border:1px solid var(--gray-200);font-size:11px}.invoice-table td.text-right{text-align:right;font-weight:600}.invoice-table td.text-center{text-align:center}.website-summary{background:#eff6ff;border-left:3px solid var(--primary-blue);padding:8px 12px;margin-bottom:12px;border-radius:4px;font-size:11px}.website-summary p{margin:0}.website-summary strong{color:var(--primary-blue);font-weight:700}.summary-section{margin-top:24px}.summary-table{width:100%;max-width:400px;margin-left:auto;border-collapse:collapse;font-size:12px}.summary-row td{padding:8px 16px;border:1px solid var(--gray-200)}.summary-label{text-align:left;font-weight:600;color:var(--gray-600);background:var(--gray-50)}.summary-value{text-align:right;font-weight:700;color:var(--gray-900)}.grand-total-row{background:var(--primary-blue);color:#fff}.grand-total-row .summary-label,.grand-total-row .summary-value{color:#fff;font-size:14px;font-weight:700;padding:12px 16px;background:transparent}.payment-box{background:var(--gray-50);border:2px solid var(--primary-blue);border-radius:8px;padding:16px;margin-top:24px}.payment-title{font-size:14px;font-weight:700;color:var(--primary-blue);margin:0 0 12px}.bank-info{margin-bottom:12px}.bank-row{display:flex;flex-direction:column;justify-content:space-between;margin-bottom:6px;font-size:12px}.bank-label{color:var(--gray-600);font-weight:500}.bank-value{font-weight:700;color:var(--gray-900)}.payment-notes{font-size:11px;color:var(--gray-600);padding-top:8px;border-top:1px solid var(--gray-200)}.payment-notes p{margin:0}.status-badge{display:inline-block;padding:4px 10px;border-radius:12px;font-size:10px;font-weight:600;text-transform:uppercase;letter-spacing:.5px}.status-badge.pending{background:#fef3c7;color:#92400e;border:1px solid var(--warning-yellow)}.status-badge.submitted{background:#dbeafe;color:#1e40af;border:1px solid #3b82f6}.status-badge.checking{background:#fde68a;color:#78350f;border:1px solid #f59e0b}.status-badge.paid{background:#d1fae5;color:#065f46;border:1px solid var(--success-green)}.status-badge.overdue{background:#fee2e2;color:#991b1b;border:1px solid var(--danger-red)}.btn{padding:10px 20px;border:none;border-radius:8px;font-size:14px;font-weight:600;cursor:pointer;transition:all .2s;font-family:Sarabun,sans-serif;display:inline-flex;align-items:center;gap:8px}.btn-primary{background:var(--primary-blue);color:#fff}.btn-primary:hover{background:var(--primary-dark);transform:translateY(-2px);box-shadow:0 4px 12px 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12px;border-radius:6px;cursor:pointer;font-size:11px;font-weight:600}.btn-add-item:hover{background:#059669}.modal-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background:#00000080;display:flex;align-items:center;justify-content:center;z-index:1000}.modal-content{background:#fff;border-radius:12px;padding:24px;max-width:500px;width:90%;box-shadow:0 20px 25px -5px #0000004d}.login-modal{max-width:450px}.login-header{text-align:center;margin-bottom:24px}.login-header h2{font-size:24px;font-weight:700;color:var(--primary-blue);margin:0 0 8px}.login-header p{font-size:14px;color:var(--gray-600);margin:0}.login-body{margin:20px 0}.login-error{background:#fee2e2;border:1px solid #ef4444;color:#991b1b;padding:12px;border-radius:8px;margin-top:12px;font-size:13px}.modal-header h3{font-size:18px;font-weight:700;color:var(--gray-900);margin:0 0 16px}.modal-body{margin:16px 0}.form-group{margin-bottom:16px}.form-group label{display:block;margin-bottom:6px;font-weight:600;font-size:13px;color:var(--gray-700)}.form-control{width:100%;padding:10px 12px;border:2px solid var(--gray-200);border-radius:6px;font-size:14px;font-family:Sarabun,sans-serif;transition:all .2s}.form-control:focus{outline:none;border-color:var(--primary-blue);box-shadow:0 0 0 3px #2563eb1a}.modal-footer{display:flex;gap:12px;justify-content:flex-end;margin-top:20px}.loading-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background:#ffffffe6;display:flex;align-items:center;justify-content:center;z-index:9999}.spinner{width:50px;height:50px;border:4px solid var(--gray-200);border-top-color:var(--primary-blue);border-radius:50%;animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.invoice-container.compact-mode{max-width:210mm;min-height:297mm;padding:12mm;margin:0 auto;font-size:10pt;line-height:1.3}.compact-mode .invoice-header{margin-bottom:10px;padding-bottom:8px}.compact-mode .company-logo-section h3{font-size:14pt;margin:0 0 4px}.compact-mode .company-details{font-size:8pt;line-height:1.4}.compact-mode .company-details p{margin:2px 0}.compact-mode .invoice-title{font-size:20pt;line-height:1.1}.compact-mode .invoice-title-en{font-size:11pt;margin:2px 0 0}.compact-mode .info-grid{gap:10px;margin-bottom:10px}.compact-mode .info-box{padding:8px 10px;border-radius:6px;border:1.5px solid #e5e7eb}.compact-mode .info-label{font-size:9pt;margin-bottom:6px;padding-bottom:4px}.compact-mode .info-row{margin-bottom:3px;font-size:8pt}.compact-mode .section{margin-bottom:10px}.compact-mode .section-title{font-size:10pt;margin:0 0 6px;padding-bottom:4px}.compact-mode .invoice-table{font-size:8.5pt;margin-bottom:8px;border-radius:4px}.compact-mode .invoice-table th{padding:5px 8px;font-size:8pt}.compact-mode .invoice-table td{padding:4px 8px;font-size:8pt}.compact-mode .website-summary{padding:6px 10px;margin-bottom:8px;font-size:8pt}.compact-mode .summary-section{margin-top:10px}.compact-mode .summary-table{max-width:350px;font-size:9pt}.compact-mode .summary-row td{padding:5px 12px}.compact-mode .grand-total-row .summary-label,.compact-mode .grand-total-row .summary-value{font-size:10pt;padding:8px 12px}.compact-mode .payment-box{padding:10px 12px;margin-top:10px;border-radius:6px}.compact-mode .payment-title{font-size:10pt;margin:0 0 8px}.compact-mode .bank-row{margin-bottom:4px;font-size:8pt}.compact-mode .payment-notes{font-size:7pt;padding-top:6px}.compact-mode .payment-notes p{margin:0;line-height:1.3}@media print{.compact-mode{box-shadow:none;border-radius:0;padding:8mm}.compact-mode .info-grid,.compact-mode .section,.compact-mode .summary-section,.compact-mode .payment-box{page-break-inside:avoid}}