/* =====================================================================
   invoice2gst — Free GST Invoice Generator (Refrens-grade quality)
   ===================================================================== */
:root{
  --ink:#0c1024;--soft:#5b6377;--faint:#98a0b3;--line:#e8e7f2;--mist:#f6f5fc;
  --indigo:#5b4be0;--violet:#8b5cf6;--green:#0d9d6c;
  --grad:linear-gradient(135deg,#6d5cf0,#8b5cf6);
}

/* hide mobile tab bar on desktop */
.ig-mob-tabs{display:none}
/* base */
body{font-family:'Inter',system-ui,sans-serif;color:var(--ink);background:#f0eff8;line-height:1.55;margin:0;-webkit-font-smoothing:antialiased}
a{color:var(--indigo);text-decoration:none}
.ig-wrap{max-width:1280px;margin:0 auto;padding:0 18px}

/* top banner */
.ig-topbanner{background:linear-gradient(135deg,#0f1430,#1a1550);color:#fff;text-align:center;font-size:13.5px;padding:9px 16px;letter-spacing:.01em}
.ig-topbanner a{color:#c4b5fd;font-weight:600;margin-left:4px}
.ig-topbanner a:hover{color:#fff}

/* hero */
.ig-hero{text-align:center;padding:32px 0 20px;background:linear-gradient(180deg,#f0eff8 0%,#eeeafb 100%)}
.ig-hero .pill{display:inline-flex;align-items:center;gap:7px;font-size:12px;font-weight:500;color:var(--soft);background:#fff;border:1px solid var(--line);border-radius:20px;padding:5px 13px;margin-bottom:14px;box-shadow:0 2px 8px rgba(91,75,224,.08)}
.ig-hero .pill .dot{width:7px;height:7px;border-radius:50%;background:var(--green)}
.ig-hero h1{font-family:'Space Grotesk',sans-serif;font-weight:600;font-size:clamp(24px,4vw,36px);letter-spacing:-.02em;margin-bottom:8px}
.ig-hero h1 .g{background:var(--grad);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.ig-hero p{max-width:560px;margin:0 auto;color:var(--soft);font-size:15px}

/* theme picker */
.ig-themes{display:flex;align-items:center;gap:10px;justify-content:center;margin:14px 0 0;flex-wrap:wrap}
.ig-themes span{font-size:12.5px;color:var(--faint);font-weight:500}
.theme-dot{width:26px;height:26px;border-radius:50%;cursor:pointer;border:3px solid transparent;transition:.15s;box-shadow:0 2px 6px rgba(0,0,0,.15)}
.theme-dot.on{border-color:var(--ink);transform:scale(1.15)}

/* main two-column layout */
.ig-main{display:grid;grid-template-columns:1fr 460px;gap:20px;align-items:start;padding:18px 0 48px}
@media(max-width:1000px){.ig-main{grid-template-columns:1fr}}

/* left form panel */
.ig-panel{background:#fff;border-radius:16px;border:1px solid var(--line);box-shadow:0 4px 20px rgba(12,16,36,.06);overflow:hidden}
.ig-panel-head{display:flex;align-items:center;justify-content:space-between;padding:14px 18px;border-bottom:1px solid var(--line);background:var(--mist)}
.ig-panel-head h3{font-family:'Space Grotesk',sans-serif;font-size:14px;font-weight:600;margin:0;display:flex;align-items:center;gap:8px;color:var(--ink)}
.ig-panel-head h3 svg{width:16px;height:16px;color:var(--indigo)}
.ig-sec{padding:18px}
.ig-sec+.ig-sec{border-top:1px solid var(--line)}
.ig-sec-title{font-size:11px;font-weight:700;text-transform:uppercase;letter-spacing:.06em;color:var(--faint);margin-bottom:14px;display:flex;align-items:center;gap:6px}
.ig-sec-title::after{content:'';flex:1;height:1px;background:var(--line)}
.ig-g2{display:grid;grid-template-columns:1fr 1fr;gap:11px}
.ig-g3{display:grid;grid-template-columns:1fr 1fr 1fr;gap:11px}
@media(max-width:580px){.ig-g2,.ig-g3{grid-template-columns:1fr}}
.ig-row{margin-bottom:12px}
.ig-row:last-child{margin-bottom:0}
.ig-form label{display:block;font-size:11.5px;font-weight:600;color:var(--soft);margin-bottom:4px}
.ig-form label.toggle-lbl{display:flex;align-items:center;gap:8px;cursor:pointer;font-size:13px;color:var(--ink);font-weight:500;margin:0}
.ig-form input,.ig-form select,.ig-form textarea{width:100%;border:1px solid var(--line);border-radius:9px;padding:9px 11px;font-size:13.5px;font-family:inherit;background:#fff;color:var(--ink);transition:.15s}
.ig-form input:focus,.ig-form select:focus,.ig-form textarea:focus{outline:none;border-color:var(--indigo);box-shadow:0 0 0 3px rgba(91,75,224,.1)}
.ig-form textarea{resize:vertical}
.ig-form .up{text-transform:uppercase}
/* toggle switch */
.tgl{position:relative;width:40px;height:22px;flex:none}
.tgl input{opacity:0;width:0;height:0;position:absolute}
.tgl-sl{position:absolute;inset:0;border-radius:22px;background:var(--line);cursor:pointer;transition:.2s}
.tgl-sl::before{content:'';position:absolute;width:16px;height:16px;border-radius:50%;background:#fff;bottom:3px;left:3px;transition:.2s;box-shadow:0 1px 4px rgba(0,0,0,.2)}
.tgl input:checked+.tgl-sl{background:var(--indigo)}
.tgl input:checked+.tgl-sl::before{transform:translateX(18px)}

/* items table */
.ig-items-wrap{overflow-x:auto}
.ig-items-head{display:grid;grid-template-columns:2.4fr .8fr .6fr .7fr .8fr .65fr .75fr 28px;gap:5px;align-items:center;padding:8px 6px;background:var(--mist);border-radius:8px;margin-bottom:6px}
.ig-items-head span{font-size:10px;font-weight:700;text-transform:uppercase;letter-spacing:.04em;color:var(--faint)}
.ig-item-row{display:grid;grid-template-columns:2.4fr .8fr .6fr .7fr .8fr .65fr .75fr 28px;gap:5px;align-items:center;margin-bottom:6px;padding:4px 2px;border-radius:8px;transition:.1s}
.ig-item-row:hover{background:var(--mist)}
.ig-item-row input,.ig-item-row select{padding:8px 8px;font-size:13px;border-radius:8px}
.rm-btn{border:none;background:none;color:var(--faint);font-size:20px;cursor:pointer;width:28px;height:28px;display:flex;align-items:center;justify-content:center;border-radius:6px;transition:.15s}
.rm-btn:hover{background:#fef2f2;color:#b04848}
@media(max-width:720px){.ig-items-head{display:none}.ig-item-row{grid-template-columns:1fr 1fr;gap:8px;border:1px solid var(--line);border-radius:12px;padding:12px;margin-bottom:10px}.rm-btn{grid-column:2;justify-self:end}}

/* subtotal panel */
.ig-totals{background:var(--mist);border-radius:12px;padding:14px 16px;margin-top:14px}
.tot-row{display:flex;justify-content:space-between;align-items:center;font-size:13.5px;padding:4px 0}
.tot-row.grand{font-family:'Space Grotesk',sans-serif;font-size:17px;font-weight:700;border-top:2px solid var(--line);margin-top:6px;padding-top:10px}
.tot-row.grand .amt{color:var(--indigo)}
.tot-lbl{color:var(--soft)}
.tot-words{font-size:12px;color:var(--soft);font-style:italic;margin-top:8px;padding-top:8px;border-top:1px dashed var(--line)}
.tax-badge{display:inline-block;font-size:10px;font-weight:600;border-radius:20px;padding:2px 8px;margin-left:6px}
.tax-badge.intra{background:#dcfce7;color:#15803d}
.tax-badge.inter{background:#dbeafe;color:#1d4ed8}
.tax-badge.zero{background:#fef9c3;color:#a16207}

/* action buttons */
.ig-actions{display:flex;flex-wrap:wrap;gap:10px;padding:16px 18px;border-top:1px solid var(--line);background:var(--mist)}
.ig-btn{display:inline-flex;align-items:center;gap:7px;font-family:inherit;font-weight:600;font-size:14px;border-radius:10px;padding:11px 18px;cursor:pointer;border:none;transition:.15s}
.ig-btn:hover{transform:translateY(-1px)}
.ig-btn.primary{background:var(--grad);color:#fff;box-shadow:0 4px 14px rgba(109,92,240,.3)}
.ig-btn.outline{background:#fff;color:var(--ink);border:1px solid var(--line)}
.ig-btn.outline:hover{border-color:var(--indigo);color:var(--indigo)}
.ig-btn svg{width:16px;height:16px}
.ig-ok{font-size:12px;color:var(--green);display:flex;align-items:center;gap:5px}
.ig-err{font-size:13px;color:#b04848;margin-top:4px}

/* right: sticky A4 preview */
.ig-preview-col{position:sticky;top:74px}
.ig-preview-shell{background:#fff;border-radius:16px;border:1px solid var(--line);box-shadow:0 8px 32px rgba(12,16,36,.12);overflow:hidden}
.ig-preview-toolbar{display:flex;align-items:center;justify-content:space-between;padding:11px 14px;border-bottom:1px solid var(--line);background:var(--mist)}
.ig-preview-toolbar span{font-size:12px;font-weight:600;color:var(--soft)}
.ig-preview-toolbar .tb-btns{display:flex;gap:6px}
.tb-btn{display:inline-flex;align-items:center;gap:5px;background:#fff;border:1px solid var(--line);border-radius:8px;padding:6px 11px;font-size:12.5px;font-weight:550;color:var(--ink);cursor:pointer;font-family:inherit;transition:.15s}
.tb-btn:hover{border-color:var(--indigo);color:var(--indigo)}
.tb-btn.prim{background:var(--grad);color:#fff;border:none;box-shadow:0 3px 10px rgba(109,92,240,.3)}
.tb-btn.prim:hover{transform:translateY(-1px)}
.tb-btn svg{width:14px;height:14px}
.ig-a4{padding:26px 28px;min-height:600px;font-size:11px;color:#1c2637;font-family:'Inter',sans-serif;background:#fff}

/* A4 preview internals — theme-aware */
.ig-a4 .pv-head{display:flex;justify-content:space-between;align-items:flex-start;margin-bottom:20px}
.ig-a4 .pv-logo{max-height:52px;max-width:140px;object-fit:contain}
.ig-a4 .pv-title-block .t1{font-family:'Space Grotesk',sans-serif;font-size:20px;font-weight:700;letter-spacing:.01em}
.ig-a4 .pv-title-block .t2{font-size:9px;text-transform:uppercase;letter-spacing:.08em;opacity:.5;margin-top:2px}
.ig-a4 .pv-meta{text-align:right;font-size:10px;line-height:1.8}
.ig-a4 .pv-meta .mk{color:#98a0b3}
.ig-a4 .pv-divider{height:3px;border-radius:2px;margin:14px 0;background:var(--tc,#5b4be0)}
.ig-a4 .pv-parties{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-bottom:16px}
.ig-a4 .pv-party-label{font-size:9px;font-weight:700;text-transform:uppercase;letter-spacing:.07em;color:var(--tc,#5b4be0);margin-bottom:5px}
.ig-a4 .pv-party-name{font-family:'Space Grotesk',sans-serif;font-size:13px;font-weight:600}
.ig-a4 .pv-party-sub{color:#5b6377;margin-top:2px;line-height:1.6}
.ig-a4 table.pv-tbl{width:100%;border-collapse:collapse;margin-bottom:14px}
.ig-a4 table.pv-tbl th{padding:7px 6px;font-size:9.5px;font-weight:700;text-transform:uppercase;letter-spacing:.04em;text-align:right;background:var(--tc,#5b4be0);color:#fff}
.ig-a4 table.pv-tbl th:first-child{text-align:left;border-radius:6px 0 0 6px;padding-left:8px}
.ig-a4 table.pv-tbl th:last-child{border-radius:0 6px 6px 0}
.ig-a4 table.pv-tbl td{padding:6px 6px;text-align:right;border-bottom:1px solid #f0eff7;font-size:10.5px}
.ig-a4 table.pv-tbl td:first-child{text-align:left;padding-left:8px}
.ig-a4 table.pv-tbl tr:last-child td{border-bottom:none}
.ig-a4 .pv-foot{display:grid;grid-template-columns:1fr auto;gap:20px;align-items:start;margin-top:8px}
.ig-a4 .pv-words{color:#5b6377;font-style:italic;font-size:10px;max-width:220px}
.ig-a4 table.pv-sums{min-width:190px}
.ig-a4 table.pv-sums td{padding:3px 0;font-size:10.5px}
.ig-a4 table.pv-sums td:first-child{color:#5b6377;padding-right:18px}
.ig-a4 table.pv-sums td:last-child{text-align:right;font-weight:500}
.ig-a4 table.pv-sums tr.grand td{border-top:1px solid #e8e7f2;padding-top:8px;font-family:'Space Grotesk',sans-serif;font-size:13px;font-weight:700}
.ig-a4 table.pv-sums tr.grand td:last-child{color:var(--tc,#5b4be0)}
.ig-a4 .pv-notes{border-top:1px dashed #e8e7f2;margin-top:14px;padding-top:10px;font-size:10px;color:#5b6377}
.ig-a4 .pv-decl{background:#f6f5fc;border-radius:7px;padding:8px 10px;font-size:9.5px;color:#5b6377;margin-top:10px;border-left:3px solid var(--tc,#5b4be0)}
.ig-a4 .pv-sign{text-align:right;margin-top:24px;font-size:10px;color:#5b6377}
.ig-a4 .pv-sign b{color:var(--ink);display:block;margin-bottom:18px;font-family:'Space Grotesk',sans-serif}
.ig-a4 .pv-watermark{text-align:center;margin-top:16px;font-size:9px;color:#c8c6e0}

/* theme variations */
.theme-classic{--tc:#5b4be0}
.theme-green{--tc:#0d9d6c}
.theme-slate{--tc:#334155}

/* upsell */
.ig-upsell{background:linear-gradient(135deg,#0f1430,#231a5c);color:#fff;border-radius:18px;padding:28px 24px;text-align:center;margin:8px 0 36px}
.ig-upsell h3{font-family:'Space Grotesk',sans-serif;font-size:20px;margin-bottom:7px}
.ig-upsell p{color:#c4b5fd;max-width:580px;margin:0 auto 16px;font-size:14px}
.ig-upsell .ig-btn.upsell-cta{background:#fff;color:#1a1550;display:inline-flex}

/* SEO section */
.ig-seo-wrap{background:#fff;border-radius:16px;border:1px solid var(--line);padding:28px;margin-bottom:36px}
.ig-seo-wrap h2{font-family:'Space Grotesk',sans-serif;font-size:22px;margin:0 0 8px}
.ig-seo-wrap h3{font-family:'Space Grotesk',sans-serif;font-size:16px;margin:20px 0 6px}
.ig-seo-wrap p{color:#27324a;margin-bottom:12px;font-size:14.5px}
.ig-seo-wrap ul{margin:0 0 14px 18px;color:#27324a;font-size:14.5px}
.ig-seo-wrap li{margin-bottom:6px}
.ig-tip-box{background:var(--mist);border:1px solid var(--line);border-left:4px solid var(--indigo);border-radius:0 10px 10px 0;padding:13px 15px;margin:16px 0;font-size:14px}
.ig-tip-box b{color:var(--indigo)}
.ig-faq{margin-top:20px}
.ig-faq details{border:1px solid var(--line);border-radius:12px;margin-bottom:8px;overflow:hidden}
.ig-faq summary{cursor:pointer;padding:14px 16px;font-family:'Space Grotesk',sans-serif;font-weight:550;font-size:15px;list-style:none;display:flex;justify-content:space-between;align-items:center}
.ig-faq summary::-webkit-details-marker{display:none}
.ig-faq summary::after{content:'+';font-size:20px;color:var(--faint);transition:.15s}
.ig-faq details[open] summary{color:var(--indigo);background:var(--mist)}
.ig-faq details[open] summary::after{content:'-';color:var(--indigo)}
.ig-faq .ans{padding:0 16px 14px;color:var(--soft);font-size:14px;line-height:1.7}

/* footer */
footer.ig-footer{border-top:1px solid var(--line);background:#fff;padding:24px 0;text-align:center}
.ig-footer .fl{display:flex;flex-wrap:wrap;gap:8px 18px;justify-content:center;margin-bottom:10px}
.ig-footer .fl a{font-size:13px;color:var(--soft)}
.ig-footer .fl a:hover{color:var(--ink)}
.ig-footer .cp{font-size:12px;color:var(--faint)}

/* print */

/* =====================================================================
   MOBILE — comprehensive responsive rules
   ===================================================================== */

/* phone: single column, form first, preview below as a collapsible tab */
@media(max-width:640px){
  body{background:#f0eff8}
  .ig-hero{padding:20px 0 14px}
  .ig-hero h1{font-size:24px}
  .ig-hero p{font-size:14px}
  .ig-themes{gap:8px;margin-top:10px}
  .theme-dot{width:22px;height:22px}
  .ig-topbanner{font-size:12px;padding:8px 12px}
  .ig-wrap{padding:0 12px}
  .ig-main{gap:12px;padding:12px 0 32px}

  /* form panels */
  .ig-panel{border-radius:12px}
  .ig-panel-head{padding:11px 14px}
  .ig-panel-head h3{font-size:13px}
  .ig-sec{padding:14px}
  .ig-sec-title{font-size:10px}
  .ig-form input,.ig-form select,.ig-form textarea{font-size:14px;padding:10px 11px}
  .ig-row{margin-bottom:10px}

  /* items: single-column cards */
  .ig-items-wrap{overflow-x:unset}
  .ig-items-head{display:none}
  .ig-item-row{
    display:grid;
    grid-template-columns:1fr 1fr;
    grid-template-areas:"desc desc" "hsn gst" "qty unit" "rate disc" "rm rm";
    gap:7px;
    border:1px solid var(--line);border-radius:12px;padding:12px;margin-bottom:10px;background:#fff
  }
  .ig-item-row .d{grid-area:desc}
  .ig-item-row .h{grid-area:hsn}
  .ig-item-row .g{grid-area:gst}
  .ig-item-row .q{grid-area:qty}
  .ig-item-row .u{grid-area:unit}
  .ig-item-row .r{grid-area:rate}
  .ig-item-row .di{grid-area:disc}
  .ig-item-row .rm-btn{grid-area:rm;justify-self:end}
  .ig-item-row input,.ig-item-row select{font-size:13px;padding:9px 9px}

  /* totals */
  .ig-totals{padding:12px}
  .tot-row{font-size:13px}
  .tot-row.grand{font-size:15px}
  .tax-badge{font-size:9px}

  /* action buttons: stack */
  .ig-actions{flex-direction:column;gap:8px;padding:13px 14px}
  .ig-btn{width:100%;justify-content:center;font-size:14px;padding:13px 16px}
  .ig-err{text-align:center}

  /* preview: full width below form */
  .ig-preview-col{position:static}
  .ig-preview-toolbar{flex-wrap:wrap;gap:8px;padding:9px 12px}
  .ig-preview-toolbar span{font-size:11px}
  .tb-btns{flex-wrap:wrap;gap:6px}
  .tb-btn{padding:7px 10px;font-size:12px}

  /* A4 preview: readable on a phone */
  .ig-a4{padding:16px 14px;font-size:10px}
  .ig-a4 .pv-head{flex-direction:column;gap:10px}
  .ig-a4 .pv-meta{text-align:left}
  .ig-a4 .pv-parties{grid-template-columns:1fr;gap:12px}
  .ig-a4 .pv-divider{margin:10px 0}
  .ig-a4 .pv-foot{grid-template-columns:1fr;gap:10px}
  .ig-a4 .pv-words{max-width:100%;margin-bottom:8px}
  .ig-a4 table.pv-sums{width:100%}
  .ig-a4 table.pv-tbl{font-size:9.5px}
  .ig-a4 table.pv-tbl th,.ig-a4 table.pv-tbl td{padding:5px 4px}
  .ig-a4 .pv-sign{margin-top:16px}

/* preview/form toggle tab — shown only on mobile */
  .ig-mob-tabs{display:flex;border-bottom:1px solid var(--line);background:#fff;position:sticky;top:62px;z-index:30;border-radius:0}
  .ig-mob-tab{flex:1;padding:13px 0;text-align:center;font-size:14px;font-weight:600;color:var(--soft);cursor:pointer;border-bottom:2px solid transparent;transition:.15s}
  .ig-mob-tab.on{color:var(--indigo);border-bottom-color:var(--indigo)}
  .ig-main.show-preview #ig-form-col{display:none}
  .ig-main.show-form #ig-prev-col{display:none}

  /* upsell */
  .ig-upsell{padding:20px 16px;border-radius:14px}
  .ig-upsell h3{font-size:17px}
  .ig-upsell p{font-size:13px}
  .ig-upsell .ig-btn.upsell-cta{width:auto}

  /* seo section */
  .ig-seo-wrap{padding:18px 16px}
  .ig-seo-wrap h2{font-size:19px}
}

/* mid range: tablet landscape — just collapse sticky */
@media(max-width:1000px) and (min-width:641px){
  .ig-preview-col{position:static}
  .ig-a4 .pv-parties{grid-template-columns:1fr 1fr}
}

/* very small (≤380px) — extra tight */
@media(max-width:380px){
  .ig-a4{padding:12px 10px;font-size:9px}
  .ig-a4 .pv-title-block .t1{font-size:15px}
  .ig-hero h1{font-size:21px}
  .ig-item-row{grid-template-areas:"desc desc" "hsn gst" "qty unit" "rate disc" "rm rm"}
}

@media print{
  header.nav,.ig-topbanner,.ig-hero,.ig-themes,.ig-form,.ig-actions,
  .ig-upsell,.ig-seo-wrap,.ig-footer,.ig-preview-toolbar,.ig-err{display:none!important}
  body{background:#fff!important}
  .ig-main{display:block!important;padding:0!important}
  .ig-preview-col{position:static!important}
  .ig-preview-shell{box-shadow:none!important;border:none!important}
  .ig-a4{padding:0!important}
}