:root{
  --bg:#f6f7fb;--surface:#fff;--surface-2:#f9fafc;--text:#101828;--muted:#667085;--muted-2:#98a2b3;
  --line:#e4e7ec;--line-strong:#d0d5dd;--primary:#635bff;--primary-2:#7c3aed;--soft:#efefff;--success:#12b76a;--danger:#d92d20;
  --shadow:0 12px 38px rgba(16,24,40,.07);--shadow-lg:0 24px 70px rgba(16,24,40,.11);--radius:20px;--radius-sm:13px;
  --content:1240px;--panel:390px;
}
[data-theme="dark"]{
  --bg:#090d17;--surface:#111827;--surface-2:#0e1522;--text:#f8fafc;--muted:#98a2b3;--muted-2:#667085;
  --line:#263244;--line-strong:#344054;--soft:#1c2040;--shadow:0 16px 50px rgba(0,0,0,.22);--shadow-lg:0 28px 80px rgba(0,0,0,.32);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
.barcode-studio-root{margin:0;min-height:100vh;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;background:radial-gradient(circle at 15% -10%,rgba(99,91,255,.13),transparent 32%),var(--bg);color:var(--text);line-height:1.45}
button,input,select{font:inherit}
button{ -webkit-tap-highlight-color:transparent }
a{color:var(--primary)}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,summary:focus-visible{outline:3px solid rgba(99,91,255,.35);outline-offset:3px}
.skip-link{position:absolute;left:12px;top:10px;z-index:100;padding:9px 12px;border-radius:9px;background:var(--text);color:var(--surface);transform:translateY(-150%);transition:transform .15s}
.skip-link:focus{transform:translateY(0)}
.site-footer{width:min(var(--content),calc(100% - 40px));margin:0 auto;padding:24px 0 34px;color:var(--muted);font-size:12px;text-align:center}
.site-footer p{margin:0 0 9px}
.footer-nav{display:flex;justify-content:center;gap:14px;flex-wrap:wrap}
.footer-nav a{text-decoration:none}
.app{width:min(var(--content),calc(100% - 40px));margin:auto;padding:18px 0 70px}
.topbar{height:58px;display:flex;align-items:center;justify-content:space-between;margin-bottom:30px}
.brand{display:flex;align-items:center;gap:11px;font-size:18px;font-weight:800;letter-spacing:-.35px}
.logo{width:38px;height:38px;border-radius:11px;background:linear-gradient(135deg,var(--primary),var(--primary-2));display:grid;place-items:center;color:#fff;box-shadow:0 8px 24px rgba(99,91,255,.28)}
.logo svg{width:22px;height:22px}
.top-actions{display:flex;gap:8px}
.icon-btn{width:42px;height:42px;border:1px solid var(--line);border-radius:12px;background:var(--surface);color:var(--text);display:grid;place-items:center;cursor:pointer;transition:.18s}
.icon-btn:hover{border-color:var(--line-strong);transform:translateY(-1px)}
.hero{margin:0 0 25px}
.eyebrow{display:inline-flex;align-items:center;gap:7px;padding:7px 10px;border-radius:999px;background:var(--soft);color:var(--primary);font-size:12px;font-weight:800;margin-bottom:12px}
.dot{width:7px;height:7px;border-radius:50%;background:var(--success);box-shadow:0 0 0 4px rgba(18,183,106,.10)}
.hero h1{font-size:clamp(32px,4vw,48px);line-height:1.03;letter-spacing:-2px;margin:0 0 9px}
.hero p{margin:0;color:var(--muted);font-size:15px}
.workspace{display:grid;grid-template-columns:var(--panel) minmax(0,1fr);gap:20px;align-items:stretch}
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow)}
.controls{padding:23px}
.section-title{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:18px}
.section-title h2{font-size:16px;line-height:1.2;margin:0;letter-spacing:-.2px}
.kicker{font-size:11px;color:var(--muted);font-weight:700;text-transform:uppercase;letter-spacing:.08em}
.field{margin-bottom:19px}
.label-row{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:8px}
.label{font-size:12px;font-weight:800}
.hint{font-size:11px;color:var(--muted)}
.input-wrap{position:relative}
.input{width:100%;min-height:52px;border:1px solid var(--line);border-radius:13px;background:var(--surface-2);color:var(--text);padding:13px 14px;outline:none;transition:.18s}
.input.big{font-size:17px;font-weight:650;padding:15px 14px;letter-spacing:.1px}
.input:focus,.select:focus{border-color:var(--primary);box-shadow:0 0 0 4px rgba(99,91,255,.12);background:var(--surface)}
.char-count{position:absolute;right:11px;bottom:7px;font-size:10px;color:var(--muted-2);pointer-events:none}
.select-wrap{position:relative}
.select{width:100%;min-height:48px;appearance:none;background:var(--surface-2);color:var(--text);border:1px solid var(--line);padding:12px 40px 12px 13px;border-radius:13px;outline:none;cursor:pointer}
.select-wrap:after{content:"⌄";position:absolute;right:14px;top:11px;color:var(--muted);pointer-events:none;font-size:17px}
.smart-types{display:flex;gap:7px;flex-wrap:wrap;margin-top:9px}
.type-chip{border:1px solid var(--line);background:transparent;color:var(--muted);padding:6px 9px;border-radius:999px;font-size:10px;font-weight:750;cursor:pointer;transition:.18s}
.type-chip:hover{border-color:var(--primary);color:var(--primary);background:var(--soft)}
.row{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.range-block{padding:11px 12px;border:1px solid var(--line);border-radius:13px;background:var(--surface-2)}
.range-row{display:flex;align-items:center;gap:10px}
.range{width:100%;accent-color:var(--primary);cursor:pointer}
.range-value{min-width:45px;text-align:right;font-size:12px;font-weight:800}
.checks{display:flex;gap:9px;flex-wrap:wrap}
.check{display:flex;align-items:center;gap:8px;border:1px solid var(--line);border-radius:11px;padding:10px 11px;color:var(--muted);font-size:11px;cursor:pointer;flex:1;min-width:120px;background:var(--surface-2)}
.check:has(input:checked){color:var(--primary);border-color:rgba(99,91,255,.38);background:var(--soft)}
.check input{accent-color:var(--primary)}
.actions{margin-top:22px;padding-top:18px;border-top:1px solid var(--line);display:grid;grid-template-columns:1fr 1fr;gap:8px}
.btn{min-height:43px;border:0;border-radius:12px;padding:11px 12px;font-weight:800;font-size:12px;cursor:pointer;transition:transform .15s,box-shadow .15s,background .15s}
.btn:hover{transform:translateY(-1px)}
.btn:active{transform:translateY(0)}
.btn.primary{grid-column:1/-1;background:linear-gradient(135deg,var(--primary),var(--primary-2));color:#fff;box-shadow:0 9px 22px rgba(99,91,255,.25)}
.btn.secondary{background:var(--soft);color:var(--primary)}
.btn.ghost{background:transparent;border:1px solid var(--line);color:var(--text)}
.preview{min-height:570px;padding:23px;display:flex;flex-direction:column}
.preview-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:14px}
.preview-title{display:flex;align-items:center;gap:9px}
.preview-title h2{margin:0;font-size:16px}
.live{display:inline-flex;align-items:center;gap:6px;color:var(--success);font-size:11px;font-weight:800}
.live i{width:7px;height:7px;border-radius:50%;background:currentColor}
.canvas-wrap{flex:1;min-height:430px;display:grid;place-items:center;border:1px dashed var(--line-strong);border-radius:16px;background:repeating-linear-gradient(45deg,transparent,transparent 12px,rgba(16,24,40,.018) 12px,rgba(16,24,40,.018) 24px);padding:40px;overflow:auto}
[data-theme="dark"] .canvas-wrap{background:repeating-linear-gradient(45deg,transparent,transparent 12px,rgba(255,255,255,.018) 12px,rgba(255,255,255,.018) 24px)}
.barcode-paper{background:#fff;border-radius:12px;padding:30px 28px;min-width:min(82%,620px);max-width:95%;min-height:150px;display:flex;justify-content:center;align-items:center;box-shadow:0 16px 38px rgba(16,24,40,.10);transition:.2s}
#barcode{display:block;max-width:100%;height:auto}
.empty{color:var(--muted);text-align:center}
.empty-icon{width:48px;height:48px;margin:0 auto 10px;border-radius:14px;background:#f2f4f7;color:#98a2b3;display:grid;place-items:center}
.meta{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:13px;color:var(--muted);font-size:11px}
.meta strong{color:var(--text);font-weight:800}
.status-pill{padding:5px 8px;border-radius:999px;background:var(--surface-2);border:1px solid var(--line)}
.history{margin-top:20px;padding:20px 23px}
.history-head{display:flex;justify-content:space-between;align-items:center;gap:12px;margin-bottom:12px}
.history-head h2{font-size:15px;margin:0}
.clear-btn{border:0;background:transparent;color:var(--danger);font-size:11px;font-weight:700;cursor:pointer}
.history-list{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:8px}
.history-item{min-width:0;border:1px solid var(--line);background:var(--surface-2);color:var(--text);border-radius:11px;padding:10px 11px;text-align:left;cursor:pointer;overflow:hidden;transition:.18s}
.history-item:hover{border-color:rgba(99,91,255,.4);transform:translateY(-1px)}
.history-type{display:block;color:var(--primary);font-size:10px;font-weight:850;margin-bottom:3px}
.history-value{display:block;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-size:11px}
.info-card{margin-top:20px;padding:23px}
.info-card h2{font-size:17px;margin:0 0 9px}
.info-card>p,.faq p{color:var(--muted);font-size:13px;line-height:1.7}
.info-grid{display:grid;grid-template-columns:1fr 1fr;gap:22px}
.info-grid h3{font-size:13px;margin:15px 0 4px}
.faq{margin-top:20px;padding:23px}
.faq h2{font-size:17px;margin:0 0 8px}
.faq details{border-top:1px solid var(--line);padding:14px 0}
.faq details:last-child{border-bottom:1px solid var(--line)}
.faq summary{cursor:pointer;font-size:13px;font-weight:750}
.faq details p{margin:8px 0 0}
.error{display:none;color:var(--danger);font-size:11px;margin-top:7px;font-weight:650}
.invalid .input{border-color:var(--danger);box-shadow:0 0 0 3px rgba(217,45,32,.08)}
.invalid .error{display:block}
.toast{position:fixed;left:50%;bottom:24px;transform:translate(-50%,18px);opacity:0;pointer-events:none;background:#101828;color:#fff;padding:10px 14px;border-radius:11px;font-size:12px;font-weight:650;transition:.22s;z-index:50;box-shadow:0 10px 30px rgba(16,24,40,.25)}
.toast.show{opacity:1;transform:translate(-50%,0)}
.mobile-download{display:none}
@media(max-width:1000px){
  :root{--panel:350px}.history-list{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media(max-width:820px){
  .app{width:min(100% - 30px,680px);padding-bottom:88px}.topbar{margin-bottom:23px}.workspace{grid-template-columns:1fr}.controls{order:1}.preview{order:2;min-height:470px}.canvas-wrap{min-height:340px}.barcode-paper{min-width:70%}.hero h1{font-size:38px}.mobile-download{display:grid;position:fixed;left:0;right:0;bottom:0;z-index:40;padding:9px max(14px,env(safe-area-inset-left)) calc(9px + env(safe-area-inset-bottom));background:rgba(255,255,255,.88);backdrop-filter:blur(18px);border-top:1px solid var(--line)}
  [data-theme="dark"] .mobile-download{background:rgba(17,24,39,.9)}.mobile-download .btn{width:100%}.mobile-download .btn.primary{grid-column:auto}
}
@media(max-width:560px){
  .app{width:100%;padding:10px 12px 90px}.topbar{height:50px;margin-bottom:20px}.brand{font-size:16px}.logo{width:34px;height:34px;border-radius:10px}.icon-btn{width:38px;height:38px}.hero{margin-bottom:17px}.eyebrow{margin-bottom:9px}.hero h1{font-size:32px;letter-spacing:-1.3px}.hero p{font-size:13px}.card{border-radius:17px}.controls,.preview,.history,.info-card,.faq{padding:17px}.preview{min-height:430px}.canvas-wrap{min-height:290px;padding:20px}.barcode-paper{min-width:92%;padding:24px 18px}.row,.info-grid{grid-template-columns:1fr}.actions{grid-template-columns:1fr 1fr}.actions .btn.primary{grid-column:1/-1}.check{min-width:0}.history-list{grid-template-columns:1fr}.meta{align-items:flex-start;flex-direction:column}.smart-types{gap:6px}.type-chip{font-size:10px}.section-title{margin-bottom:15px}
}

/* Mobile workflow: setup → preview → download → advanced settings */
@media(max-width:820px){
  .workspace{display:grid;grid-template-columns:1fr;gap:12px;align-items:start}
  .controls{display:contents}
  .settings-top{display:block;background:var(--surface);border:1px solid var(--line);border-radius:17px;padding:17px;box-shadow:var(--shadow);order:1}
  .settings-top .section-title{margin-bottom:15px}
  .settings-top .field{margin-bottom:16px}
  .settings-top .field:last-child{margin-bottom:0}
  .settings-bottom{display:block;background:var(--surface);border:1px solid var(--line);border-radius:17px;padding:17px;box-shadow:var(--shadow);order:5}
  .settings-bottom .field{margin-bottom:17px}
  .settings-bottom .field:last-child{margin-bottom:0}
  .preview{order:2;min-height:0;padding:17px}
  .preview-head{margin-bottom:10px}
  .canvas-wrap{min-height:250px;padding:14px;border-radius:14px}
  .barcode-paper{min-width:100%;max-width:100%;min-height:132px;padding:20px 14px}
  .meta{margin-top:10px}
  .actions{order:3;margin:0;padding:0;display:grid;grid-template-columns:1fr 1fr;gap:8px}
  .actions .btn{min-height:46px}
  .actions .btn.primary{grid-column:1/-1}
  .mobile-download{display:none!important}
}
@media(max-width:560px){
  .app{width:100%;padding:10px 12px 24px}
  .hero{margin-bottom:14px}
  .hero h1{font-size:29px}
  .hero p{font-size:12px;line-height:1.55}
  .settings-top,.settings-bottom,.preview{padding:15px;border-radius:16px}
  .settings-top .section-title h2{font-size:15px}
  .settings-top .kicker{display:none}
  .input.big{min-height:50px;font-size:16px}
  .select{min-height:46px}
  .smart-types{margin-top:7px}
  .type-chip{padding:6px 8px}
  .preview{min-height:0}
  .canvas-wrap{min-height:225px;padding:10px}
  .barcode-paper{min-height:118px;padding:17px 10px}
  .empty-icon{width:40px;height:40px;border-radius:12px}
  .actions .btn{min-height:45px;font-size:12px}
  .settings-bottom .row{grid-template-columns:1fr}
  .settings-bottom .range-block{padding:10px}
  .settings-bottom .checks{display:grid;grid-template-columns:1fr 1fr}
  .settings-bottom .check{min-width:0;padding:10px}
}

@media(prefers-reduced-motion:reduce){*,*::before,*::after{scroll-behavior:auto!important;transition:none!important}}
/* Barcode Studio configurable branding */
.barcode-studio-root{width:100%;box-sizing:border-box}
.barcode-studio-root *{box-sizing:border-box}
.barcode-studio-root .app{width:min(100% - 40px,var(--bs-container,1180px))}
.barcode-studio-root .topbar{background:var(--bs-header-bg);color:var(--bs-header-text);border-color:color-mix(in srgb,var(--bs-header-text) 12%,transparent)}
.barcode-studio-root .topbar.barcode-header-sticky{position:sticky;top:0;z-index:30}
.barcode-studio-root .brand{color:var(--bs-header-text)}
.barcode-studio-root .brand:hover{color:var(--bs-header-accent)}
.barcode-studio-root .logo{width:var(--bs-logo-width,42px);height:var(--bs-logo-width,42px);flex:0 0 var(--bs-logo-width,42px);display:grid;place-items:center;overflow:hidden}
.barcode-studio-root .brand-logo-image{display:none;width:100%;height:100%;object-fit:contain}
.barcode-studio-root .brand-logo-image[src]:not([src=""]){display:block}
.barcode-studio-root .brand-logo-image[src]:not([src=""]) + .brand-logo-fallback{display:none}
.barcode-studio-root .brand-logo-fallback{display:grid;place-items:center;width:100%;height:100%}
.barcode-studio-root .brand-logo-fallback svg{width:58%;height:58%}
.barcode-studio-root .brand-copy{display:flex;flex-direction:column;min-width:0}
.barcode-studio-root .brand-copy strong{line-height:1.15}
.barcode-studio-root .brand-copy small{font-size:9px;font-weight:600;opacity:.62;margin-top:3px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:280px}
.barcode-studio-root .icon-btn{color:var(--bs-header-text)}
.barcode-studio-root .site-footer{background:var(--bs-footer-bg);color:var(--bs-footer-text);border-top:1px solid rgba(255,255,255,.08)}
.barcode-studio-root .site-footer p{color:inherit}
.barcode-studio-root .site-footer a{color:inherit;opacity:.82}
.barcode-studio-root .site-footer a:hover{color:#fff;opacity:1}
@media(max-width:560px){.barcode-studio-root .app{width:100%}.barcode-studio-root .brand-copy small{display:none}.barcode-studio-root .logo{width:min(var(--bs-logo-width,42px),38px);height:min(var(--bs-logo-width,42px),38px);flex-basis:min(var(--bs-logo-width,42px),38px)}}