@import url("https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&display=swap");*{box-sizing:border-box;margin:0;padding:0}:root{--teal:#0d9488;--teal-dark:#0f766e;--teal-soft:#f0fdfa;--slate-900:#0f172a;--slate-800:#1e293b;--slate-700:#334155;--slate-600:#475569;--slate-500:#64748b;--slate-400:#94a3b8;--slate-300:#cbd5e1;--slate-200:#e2e8f0;--slate-100:#f1f5f9;--slate-50:#f8fafc;--card:#fff;--bg:#f1f5f9;--green:#16a34a;--green-soft:#f0fdf4;--amber:#d97706;--amber-soft:#fffbeb;--red:#dc2626;--red-soft:#fef2f2;--blue:#2563eb;--blue-soft:#eff6ff;--radius:10px;--radius-sm:7px;--shadow-sm:0 1px 2px rgba(15,23,42,.06);--shadow:0 4px 12px -2px rgba(15,23,42,.08);--shadow-lg:0 16px 40px -12px rgba(15,23,42,.22)}body{font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;background:var(--bg);color:var(--slate-800);min-height:100vh;font-size:14px;line-height:1.5}button{font-family:inherit}.gst-app{display:flex;min-height:100vh}.gst-sidebar{width:232px;flex-shrink:0;background:var(--slate-900);color:var(--slate-400);display:flex;flex-direction:column;padding:18px 12px;position:-webkit-sticky;position:sticky;top:0;height:100vh}.gst-sidebar-brand{display:flex;align-items:center;gap:10px;padding:6px 8px 18px}.gst-sidebar-logo{background:linear-gradient(135deg,var(--teal),#0284c7);color:#fff;font-weight:900;font-size:15px;padding:5px 10px;border-radius:7px}.gst-sidebar-brand-text{color:#fff;font-weight:800;font-size:14.5px;line-height:1.15}.gst-sidebar-brand-sub{color:var(--slate-400);font-size:10.5px}.gst-nav{display:flex;flex-direction:column;gap:2px;margin-top:8px}.gst-nav-item{display:flex;align-items:center;gap:11px;padding:10px 12px;border-radius:8px;color:var(--slate-400);font-size:13.5px;font-weight:600;cursor:pointer;border:none;background:transparent;text-align:left;width:100%;transition:background .15s,color .15s}.gst-nav-item:hover{background:hsla(0,0%,100%,.06);color:#e2e8f0}.gst-nav-item.active{background:rgba(13,148,136,.18);color:#fff}.gst-nav-item.active svg{color:var(--teal)}.gst-sidebar-foot{margin-top:auto;padding:10px 8px;color:var(--slate-500);font-size:11px;line-height:1.5}.gst-sidebar-foot a{color:var(--slate-300);text-decoration:none}.gst-sidebar-foot a:hover{color:var(--teal)}.gst-main{flex:1 1;min-width:0;display:flex;flex-direction:column}.gst-topbar{background:#fff;border-bottom:1px solid var(--slate-200);padding:12px 24px;display:flex;align-items:center;justify-content:space-between;gap:16px;position:-webkit-sticky;position:sticky;top:0;z-index:20}.gst-topbar-title{font-size:16px;font-weight:800;color:var(--slate-900)}.gst-topbar-sub{font-size:12px;color:var(--slate-500);margin-top:1px}.gst-topbar-actions{display:flex;align-items:center;gap:8px}.gst-save-state{font-size:11.5px;color:var(--slate-500);display:inline-flex;align-items:center;gap:6px}.gst-save-state.saving{color:var(--amber)}.gst-save-state.saved{color:var(--green)}.gst-save-state.error{color:var(--red)}.gst-content{padding:24px;flex:1 1;max-width:1280px;width:100%;margin:0 auto}.gst-mobile-nav{display:none}.gst-btn{display:inline-flex;align-items:center;gap:7px;font-size:13px;font-weight:600;padding:8px 14px;border-radius:8px;border:1px solid transparent;cursor:pointer;transition:all .15s;white-space:nowrap}.gst-btn:disabled{opacity:.5;cursor:not-allowed}.gst-btn-pri{background:var(--teal);color:#fff}.gst-btn-pri:hover:not(:disabled){background:var(--teal-dark)}.gst-btn-sec{background:#fff;color:var(--slate-700);border-color:var(--slate-300)}.gst-btn-sec:hover:not(:disabled){background:var(--slate-50);border-color:var(--slate-400)}.gst-btn-dark{background:var(--slate-800);color:#fff}.gst-btn-dark:hover:not(:disabled){background:var(--slate-700)}.gst-btn-ghost{background:transparent;color:var(--slate-600)}.gst-btn-ghost:hover:not(:disabled){background:var(--slate-100)}.gst-btn-danger{background:var(--red-soft);color:var(--red);border-color:#fecaca}.gst-btn-danger:hover:not(:disabled){background:#fee2e2}.gst-btn-sm{padding:6px 10px;font-size:12px}.gst-btn-icon{padding:7px}.gst-btn-block{width:100%;justify-content:center}.gst-card{background:var(--card);border:1px solid var(--slate-200);border-radius:var(--radius);box-shadow:var(--shadow-sm);min-width:0}.gst-card-pad{padding:20px}.gst-card-head{padding:16px 20px;border-bottom:1px solid var(--slate-200);display:flex;align-items:center;justify-content:space-between;gap:12px}.gst-card-head h3{font-size:15px;font-weight:800;color:var(--slate-900)}.gst-grid{display:grid;grid-gap:16px;gap:16px}.gst-page-head{margin-bottom:18px}.gst-page-head h1{font-size:22px;font-weight:800;color:var(--slate-900)}.gst-page-head p{font-size:13px;color:var(--slate-500);margin-top:3px}.gst-empty{text-align:center;padding:48px 24px;color:var(--slate-500)}.gst-empty h3{font-size:16px;font-weight:700;color:var(--slate-700);margin-bottom:6px}.gst-empty p{font-size:13px;margin-bottom:18px}.gst-field{display:flex;flex-direction:column;gap:5px}.gst-field-label{font-size:11.5px;font-weight:600;color:var(--slate-600);letter-spacing:.1px}.gst-field-label .req{color:var(--red)}.gst-field-hint{font-size:11px;color:var(--slate-400)}.gst-input,.gst-select,.gst-textarea{font-family:inherit;font-size:13.5px;padding:9px 11px;border:1px solid var(--slate-300);border-radius:8px;background:#fff;color:var(--slate-800);outline:none;transition:border .15s,box-shadow .15s;width:100%}.gst-input:focus,.gst-select:focus,.gst-textarea:focus{border-color:var(--teal);box-shadow:0 0 0 3px rgba(13,148,136,.14)}.gst-textarea{resize:vertical;min-height:64px}.gst-input.err{border-color:var(--red)}.gst-field-err{font-size:11px;color:var(--red)}.gst-form-row{display:grid;grid-template-columns:1fr 1fr;grid-gap:14px;gap:14px}.gst-form-row-3{display:grid;grid-template-columns:repeat(3,1fr);grid-gap:14px;gap:14px}.gst-pill{display:inline-flex;align-items:center;gap:5px;font-size:11px;font-weight:700;padding:3px 9px;border-radius:999px;text-transform:capitalize}.gst-pill.draft{background:var(--slate-100);color:var(--slate-600)}.gst-pill.issued{background:var(--blue-soft);color:var(--blue)}.gst-pill.partial{background:var(--amber-soft);color:var(--amber)}.gst-pill.paid{background:var(--green-soft);color:var(--green)}.gst-pill.overdue{background:var(--red-soft);color:var(--red)}.gst-table{width:100%;border-collapse:collapse;font-size:13px}.gst-table th{text-align:left;font-size:11px;font-weight:700;color:var(--slate-500);text-transform:uppercase;letter-spacing:.3px;padding:10px 12px;border-bottom:1px solid var(--slate-200)}.gst-table td{padding:11px 12px;border-bottom:1px solid var(--slate-100);vertical-align:middle}.gst-table tr:hover td{background:var(--slate-50)}.gst-table .num{text-align:right;font-feature-settings:"tnum";font-variant-numeric:tabular-nums}.gst-table .clickable{cursor:pointer}.gst-row-actions{display:flex;gap:4px;justify-content:flex-end}.gst-kpi-grid{display:grid;grid-template-columns:repeat(4,1fr);grid-gap:14px;gap:14px}.gst-kpi{background:#fff;border:1px solid var(--slate-200);border-radius:var(--radius);padding:16px 18px;box-shadow:var(--shadow-sm)}.gst-kpi-label{font-size:11.5px;font-weight:600;color:var(--slate-500);text-transform:uppercase;letter-spacing:.3px}.gst-kpi-value{font-size:22px;font-weight:800;color:var(--slate-900);margin-top:6px;font-feature-settings:"tnum";font-variant-numeric:tabular-nums}.gst-kpi-sub{font-size:11.5px;color:var(--slate-400);margin-top:2px}.gst-combo{position:relative}.gst-combo-list{position:absolute;top:100%;left:0;right:0;z-index:50;margin-top:4px;background:#fff;border:1px solid var(--slate-300);border-radius:8px;box-shadow:var(--shadow-lg);max-height:220px;overflow-y:auto}.gst-combo-opt{padding:9px 11px;font-size:13px;cursor:pointer;border-bottom:1px solid var(--slate-100)}.gst-combo-opt:last-child{border-bottom:none}.gst-combo-opt.active,.gst-combo-opt:hover{background:var(--teal-soft)}.gst-combo-opt .sub{font-size:11px;color:var(--slate-500)}.gst-combo-empty{padding:10px 11px;font-size:12.5px;color:var(--slate-400)}.gst-modal-overlay{position:fixed;inset:0;background:rgba(15,23,42,.55);z-index:1000;display:flex;align-items:center;justify-content:center;padding:16px}.gst-modal{background:#fff;border-radius:14px;width:100%;max-width:600px;max-height:88vh;display:flex;flex-direction:column;overflow:hidden;box-shadow:var(--shadow-lg)}.gst-modal.lg{max-width:760px}.gst-modal-head{padding:16px 20px;border-bottom:1px solid var(--slate-200);display:flex;align-items:center;justify-content:space-between}.gst-modal-head h3{font-size:16px;font-weight:800;color:var(--slate-900)}.gst-modal-close{border:none;background:transparent;color:var(--slate-400);cursor:pointer;padding:6px;border-radius:6px;display:flex}.gst-modal-close:hover{background:var(--slate-100);color:var(--slate-700)}.gst-modal-body{padding:20px;overflow-y:auto}.gst-modal-foot{padding:14px 20px;border-top:1px solid var(--slate-200);display:flex;justify-content:flex-end;gap:10px;background:var(--slate-50)}.gst-editor-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.05fr);grid-gap:22px;gap:22px;align-items:start}.gst-editor-left{display:flex;flex-direction:column;gap:16px}.gst-section{background:#fff;border:1px solid var(--slate-200);border-radius:var(--radius);overflow:hidden}.gst-section-head{padding:13px 18px;display:flex;align-items:center;gap:9px;font-weight:700;font-size:13.5px;color:var(--slate-900);border-bottom:1px solid var(--slate-200);background:var(--slate-50)}.gst-section-head svg{color:var(--teal)}.gst-section-body{padding:16px 18px;gap:14px}.gst-item-card,.gst-section-body{display:flex;flex-direction:column}.gst-item-card{border:1px solid var(--slate-200);border-radius:9px;padding:12px;background:var(--slate-50);gap:10px}.gst-item-top{display:flex;gap:8px;align-items:center}.gst-item-top .gst-input{flex:1 1}.gst-item-grid{display:grid;grid-template-columns:repeat(6,1fr);grid-gap:8px;gap:8px}.gst-item-grid .gst-field{gap:3px}.gst-item-grid .gst-field-label{font-size:9.5px}.gst-item-grid .gst-input,.gst-item-grid .gst-select{font-size:12px;padding:7px 8px}.gst-item-foot{display:flex;justify-content:space-between;align-items:center}.gst-item-amount{font-weight:800;color:var(--slate-900);font-size:13px;font-feature-settings:"tnum";font-variant-numeric:tabular-nums}.gst-toggle{display:inline-flex;align-items:center;gap:8px;cursor:pointer;-webkit-user-select:none;-moz-user-select:none;user-select:none;font-size:12.5px;font-weight:600;color:var(--slate-600)}.gst-toggle-switch{width:38px;height:22px;background:var(--slate-300);border-radius:999px;position:relative;transition:background .15s;flex-shrink:0}.gst-toggle-switch:after{content:"";position:absolute;top:2px;left:2px;width:18px;height:18px;background:#fff;border-radius:50%;transition:transform .15s;box-shadow:0 1px 2px rgba(0,0,0,.2)}.gst-toggle.on .gst-toggle-switch{background:var(--teal)}.gst-toggle.on .gst-toggle-switch:after{transform:translateX(16px)}.gst-preview-wrap{display:flex;justify-content:center;min-width:0}.gst-paper{background:#fff;border:1px solid var(--slate-300);border-top:5px solid var(--slate-900);width:100%;min-width:0;max-width:720px;padding:34px 38px;box-shadow:var(--shadow);min-height:900px;overflow:hidden}.gst-paper-title{text-align:center;font-size:19px;font-weight:800;letter-spacing:1.5px;color:var(--slate-900);padding-bottom:10px;margin-bottom:16px}.gst-paper-seller,.gst-paper-title{border-bottom:2px solid var(--slate-900)}.gst-paper-seller{display:flex;justify-content:space-between;align-items:flex-start;gap:16px;padding-bottom:14px}.gst-paper-seller-name{font-size:16px;font-weight:800;color:var(--slate-900)}.gst-paper-block{font-size:11px;color:var(--slate-600);line-height:1.55}.gst-paper-block b{color:var(--slate-800)}.gst-paper-section-label{font-size:10px;font-weight:700;color:var(--teal);text-transform:uppercase;letter-spacing:.4px}.gst-paper-table{width:100%;table-layout:fixed;border-collapse:collapse;margin-top:14px;font-size:11.5px}.gst-paper-table th{background:var(--slate-900);color:#fff;padding:8px 9px;text-align:left;font-size:10px;text-transform:uppercase;letter-spacing:.3px}.gst-paper-table th.num{text-align:right}.gst-paper-table td{padding:8px 9px;border-bottom:1px solid var(--slate-200);vertical-align:top;overflow-wrap:anywhere}.gst-paper-table td.num{text-align:right;font-feature-settings:"tnum";font-variant-numeric:tabular-nums}.gst-paper-totals{display:flex;justify-content:flex-end;margin-top:14px}.gst-paper-totals-inner{width:280px;font-size:12px}.gst-paper-total-row{padding:4px 0;color:var(--slate-600)}.gst-paper-grand,.gst-paper-total-row{display:flex;justify-content:space-between}.gst-paper-grand{padding:8px 0;border-top:2px solid var(--slate-900);margin-top:4px;font-weight:800;font-size:15px;color:var(--slate-900)}.gst-paper-words{margin-top:10px;padding:8px 10px;background:var(--slate-50);border:1px solid var(--slate-300);border-radius:4px;font-size:11px;font-style:italic;color:var(--slate-700)}.gst-paper-footer{margin-top:24px;display:flex;justify-content:space-between;align-items:flex-end;border-top:1px solid var(--slate-300);padding-top:14px;font-size:11px}.gst-paper-irn{background:var(--slate-50);border:1px solid var(--slate-300);border-radius:4px;padding:8px 12px;margin-top:12px;font-size:10.5px;font-family:monospace;color:var(--slate-800)}.gst-paper-meta-box{background:var(--slate-50);padding:10px 12px;border:1px solid var(--slate-300);border-radius:4px}.gst-paper-billto,.gst-paper-meta-box{display:grid;grid-template-columns:1fr 1fr;grid-gap:16px;gap:16px;margin-top:14px;font-size:11px}.gst-paper-billto{border-bottom:1px solid var(--slate-200);padding-bottom:10px}.gst-paper-qr{display:flex;gap:12px;align-items:center;margin-top:12px;padding:10px;border:1px solid var(--slate-300);border-radius:6px;background:#fff}.gst-paper-qr img{width:96px;height:96px}.gst-paper-qr-text{font-size:11px;color:var(--slate-600)}.gst-paper-balance{margin-top:10px;padding:8px 10px;border-radius:4px;font-size:11.5px;font-weight:700}.gst-paper-balance.due{background:var(--amber-soft);color:var(--amber)}.gst-paper-balance.paid{background:var(--green-soft);color:var(--green)}.gst-status-banner{display:flex;gap:8px;align-items:center;margin-bottom:14px}.gst-chart{width:100%;height:180px}.gst-chart-bar{transition:opacity .15s}.gst-chart-bar:hover{opacity:.8}.gst-chart-axis{font-size:10px;fill:var(--slate-400)}.gst-filter-bar{display:flex;flex-wrap:wrap;gap:10px;align-items:center;margin-bottom:16px}.gst-search{position:relative;flex:1 1;min-width:220px}.gst-search .gst-input{padding-left:34px}.gst-search svg{position:absolute;left:10px;top:50%;transform:translateY(-50%);color:var(--slate-400)}.gst-chip{padding:6px 12px;border-radius:999px;border:1px solid var(--slate-300);background:#fff;font-size:12px;font-weight:600;color:var(--slate-600);cursor:pointer}.gst-chip.active{background:var(--teal);color:#fff;border-color:var(--teal)}.gst-muted{color:var(--slate-500)}.gst-row,.gst-row-between{display:flex;align-items:center;gap:8px}.gst-row-between{justify-content:space-between}.gst-stack{display:flex;flex-direction:column;gap:10px}.gst-divider{height:1px;background:var(--slate-200);margin:4px 0}.gst-badge{display:inline-flex;align-items:center;gap:5px;font-size:11px;font-weight:700;padding:3px 8px;border-radius:6px;background:var(--teal-soft);color:var(--teal-dark)}.gst-alert{padding:12px 14px;border-radius:8px;font-size:12.5px;line-height:1.5}.gst-alert.warn{background:var(--amber-soft);color:#92400e;border:1px solid #fde68a}.gst-alert.info{background:var(--blue-soft);color:#1e40af;border:1px solid #bfdbfe}.gst-alert.error{background:var(--red-soft);color:#991b1b;border:1px solid #fecaca}.gst-alert.success{background:var(--green-soft);color:#166534;border:1px solid #bbf7d0}.gst-link{color:var(--teal);text-decoration:none;font-weight:600}.gst-link:hover{text-decoration:underline}.gst-seo{max-width:1150px;margin:40px auto 0;padding:0 24px 60px;color:var(--slate-600)}.gst-seo-card{background:#fff;border:1px solid var(--slate-200);border-radius:12px;padding:32px;box-shadow:var(--shadow-sm)}.gst-seo h1{font-size:24px;font-weight:800;color:var(--slate-900);margin-bottom:12px}.gst-seo h2{font-size:18px;font-weight:700;color:var(--slate-900);margin:24px 0 10px}.gst-seo h3{font-size:15px;font-weight:700;color:var(--teal);margin:16px 0 6px}.gst-seo p{font-size:14px;margin-bottom:12px}.gst-seo p,.gst-seo ul{line-height:1.7;color:var(--slate-600)}.gst-seo ul{padding-left:20px;margin-bottom:16px}.gst-footer{background:var(--slate-900);color:var(--slate-400);padding:36px 24px;font-size:12.5px;margin-top:auto}.gst-footer-inner{max-width:1150px;margin:0 auto;display:flex;justify-content:space-between;flex-wrap:wrap;gap:24px}.gst-footer-col{display:flex;flex-direction:column;gap:8px;min-width:160px}.gst-footer-title{color:#fff;font-weight:700;font-size:13.5px;margin-bottom:4px}.gst-footer-link{color:var(--slate-300);text-decoration:none}.gst-footer-link:hover{color:var(--teal)}@media (max-width:1024px){.gst-sidebar{display:none}.gst-mobile-nav{display:flex;position:-webkit-sticky;position:sticky;bottom:0;left:0;right:0;z-index:30;background:var(--slate-900);border-top:1px solid var(--slate-800)}.gst-mobile-nav-item{flex:1 1;display:flex;flex-direction:column;align-items:center;gap:3px;padding:9px 4px;background:transparent;border:none;color:var(--slate-400);font-size:10.5px;font-weight:600;cursor:pointer}.gst-mobile-nav-item.active{color:var(--teal)}.gst-editor-grid{grid-template-columns:1fr}.gst-kpi-grid{grid-template-columns:repeat(2,1fr)}.gst-item-grid{grid-template-columns:repeat(3,1fr)}.gst-content{padding:16px 16px 80px}}@media (max-width:640px){.gst-form-row,.gst-form-row-3{grid-template-columns:1fr}.gst-item-grid,.gst-kpi-grid{grid-template-columns:1fr 1fr}.gst-topbar{padding:10px 14px;flex-wrap:wrap}.gst-topbar-actions{width:100%;justify-content:space-between}.gst-paper{padding:18px 12px;min-height:auto}.gst-paper-title{font-size:16px;letter-spacing:1px}.gst-paper-footer,.gst-paper-seller{gap:10px}.gst-paper-table{font-size:9px}.gst-paper-table td,.gst-paper-table th{padding:6px 3px}.gst-paper-table td:nth-child(3),.gst-paper-table th:nth-child(3){width:42px}.gst-paper-totals-inner{width:100%}.gst-paper-billto,.gst-paper-meta-box{grid-template-columns:1fr}.gst-table{table-layout:fixed;font-size:11px}.gst-table td,.gst-table th{padding:8px 5px;overflow-wrap:anywhere}}@media print{@page{margin:12mm}body,html{background:#fff!important}body *{visibility:hidden}.gst-paper,.gst-paper *{visibility:visible}.gst-paper{position:absolute;top:0;left:0;box-shadow:none!important;border:none!important;border-top:4px solid #000!important;width:100%!important;max-width:100%!important;margin:0!important;padding:0!important;min-height:auto!important}.gst-paper-qr img{width:120px!important;height:120px!important}.no-print{display:none!important}}