/* ============================================================
   scan-barcode.id — shared stylesheet
   ID-first, mobile-first, privacy-focused barcode/QR scanner
   ============================================================ */

:root{
  --paper:#F4F7F5; --panel:#FFFFFF; --panel-2:#F0F4F1;
  --ink:#0E1712; --ink-soft:#3B4740; --muted:#67736B;
  --line:#DEE6E0; --line-soft:#EAF0EB;
  --accent:#0E9E6E; --accent-deep:#06724F; --accent-wash:#E4F4EC;
  --laser:#E8583F; --warn:#B7791F; --warn-wash:#FBF1DC;
  --ok:#0E9E6E; --ok-wash:#E1F3EA;
  --mono:ui-monospace,"SFMono-Regular","Cascadia Code","Segoe UI Mono",Menlo,Consolas,monospace;
  --sans:"Inter","Segoe UI",system-ui,-apple-system,Roboto,Helvetica,Arial,sans-serif;
  --maxw:1120px; --r:16px; --r-s:10px;
  --sh:0 1px 2px rgba(14,23,18,.05),0 10px 30px -14px rgba(14,23,18,.18);
  --sh-lg:0 2px 6px rgba(14,23,18,.06),0 26px 60px -24px rgba(14,23,18,.30);
}
@media (prefers-color-scheme:dark){
  :root{
    --paper:#0A0F0C; --panel:#111814; --panel-2:#0E1511;
    --ink:#EAF1EC; --ink-soft:#BAC6BD; --muted:#889A8D;
    --line:#212C25; --line-soft:#19211B;
    --accent:#2FCB94; --accent-deep:#8CE9C6; --accent-wash:#11241B;
    --laser:#FF8168; --warn:#E0A83A; --warn-wash:#241C0C;
    --ok:#2FCB94; --ok-wash:#12251C;
    --sh:0 1px 2px rgba(0,0,0,.4),0 12px 34px -16px rgba(0,0,0,.7);
    --sh-lg:0 2px 8px rgba(0,0,0,.5),0 30px 70px -28px rgba(0,0,0,.85);
  }
}
:root[data-theme="dark"]{
  --paper:#0A0F0C; --panel:#111814; --panel-2:#0E1511;
  --ink:#EAF1EC; --ink-soft:#BAC6BD; --muted:#889A8D;
  --line:#212C25; --line-soft:#19211B;
  --accent:#2FCB94; --accent-deep:#8CE9C6; --accent-wash:#11241B;
  --laser:#FF8168; --warn:#E0A83A; --warn-wash:#241C0C;
  --ok:#2FCB94; --ok-wash:#12251C;
  --sh:0 1px 2px rgba(0,0,0,.4),0 12px 34px -16px rgba(0,0,0,.7);
  --sh-lg:0 2px 8px rgba(0,0,0,.5),0 30px 70px -28px rgba(0,0,0,.85);
}
:root[data-theme="light"]{
  --paper:#F4F7F5; --panel:#FFFFFF; --panel-2:#F0F4F1;
  --ink:#0E1712; --ink-soft:#3B4740; --muted:#67736B;
  --line:#DEE6E0; --line-soft:#EAF0EB;
  --accent:#0E9E6E; --accent-deep:#06724F; --accent-wash:#E4F4EC;
  --laser:#E8583F; --warn:#B7791F; --warn-wash:#FBF1DC;
  --ok:#0E9E6E; --ok-wash:#E1F3EA;
  --sh:0 1px 2px rgba(14,23,18,.05),0 10px 30px -14px rgba(14,23,18,.18);
  --sh-lg:0 2px 6px rgba(14,23,18,.06),0 26px 60px -24px rgba(14,23,18,.30);
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{animation-duration:.001ms!important;transition:none!important}}
body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--sans);
  font-size:16px;line-height:1.6;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;}
img{max-width:100%;display:block}
a{color:var(--accent-deep)}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 clamp(16px,4vw,32px)}
.narrow{max-width:760px;margin-left:auto;margin-right:auto}

/* ---- skip link + focus ---- */
.skip{position:absolute;left:-9999px;top:0;background:var(--accent);color:#fff;padding:10px 16px;border-radius:0 0 8px 0;z-index:100}
.skip:focus{left:0}
a:focus-visible,button:focus-visible,summary:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{
  outline:2px solid var(--accent);outline-offset:2px;border-radius:6px}

/* ---- header / nav ---- */
.site-head{position:sticky;top:0;z-index:40;background:color-mix(in srgb,var(--paper) 86%,transparent);
  backdrop-filter:saturate(1.4) blur(10px);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;gap:18px;height:62px}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;letter-spacing:-.02em;font-size:18px;color:var(--ink);text-decoration:none}
.brand .glyph{width:30px;height:30px;border-radius:8px;background:linear-gradient(135deg,var(--accent),var(--accent-deep));
  display:grid;place-items:center;color:#fff;position:relative;overflow:hidden}
.brand .glyph::before{content:"";position:absolute;inset:0;background-image:repeating-linear-gradient(90deg,#fff 0 1.5px,transparent 1.5px 3px,#fff 3px 4px,transparent 4px 7px);opacity:.85}
.brand .dot-id{color:var(--accent)}
.nav-links{display:flex;gap:4px;margin-left:8px}
.nav-links a{color:var(--ink-soft);text-decoration:none;font-size:14.5px;font-weight:500;padding:8px 12px;border-radius:8px}
.nav-links a:hover{background:var(--accent-wash);color:var(--accent-deep)}
.nav-links a[aria-current="page"]{color:var(--accent-deep);background:var(--accent-wash)}
.nav-spacer{margin-left:auto}
.icon-btn{border:1px solid var(--line);background:var(--panel);color:var(--ink-soft);width:38px;height:38px;border-radius:10px;
  cursor:pointer;display:grid;place-items:center;font-size:16px}
.icon-btn:hover{background:var(--accent-wash);color:var(--accent-deep)}
.menu-btn{display:none}
@media (max-width:820px){
  .nav-links{position:absolute;top:62px;left:0;right:0;flex-direction:column;background:var(--panel);border-bottom:1px solid var(--line);
    padding:8px;gap:2px;display:none;box-shadow:var(--sh)}
  .nav-links.open{display:flex}
  .nav-links a{padding:12px}
  .menu-btn{display:grid}
}

/* ---- buttons ---- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font-family:inherit;font-size:15px;font-weight:600;
  padding:11px 18px;border-radius:12px;border:1px solid transparent;cursor:pointer;text-decoration:none;transition:transform .06s,box-shadow .15s,background .15s;line-height:1}
.btn:active{transform:translateY(1px)}
.btn-primary{background:var(--accent);color:#fff;box-shadow:0 6px 16px -8px var(--accent)}
.btn-primary:hover{background:var(--accent-deep)}
.btn-ghost{background:var(--panel);color:var(--ink);border-color:var(--line)}
.btn-ghost:hover{background:var(--accent-wash);color:var(--accent-deep);border-color:var(--accent-wash)}
.btn-sm{padding:8px 12px;font-size:13.5px;border-radius:9px}
.btn[disabled]{opacity:.5;cursor:not-allowed}

/* ---- hero ---- */
.hero{padding:clamp(30px,5vw,58px) 0 clamp(8px,3vw,24px);text-align:center;position:relative}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-family:var(--mono);font-size:12.5px;letter-spacing:.04em;
  color:var(--accent-deep);background:var(--accent-wash);border:1px solid color-mix(in srgb,var(--accent) 25%,transparent);
  padding:6px 12px;border-radius:100px;font-weight:600}
.pulse{width:8px;height:8px;border-radius:100px;background:var(--accent);box-shadow:0 0 0 0 var(--accent);animation:pulse 2.2s infinite}
@keyframes pulse{0%{box-shadow:0 0 0 0 color-mix(in srgb,var(--accent) 55%,transparent)}70%{box-shadow:0 0 0 9px transparent}100%{box-shadow:0 0 0 0 transparent}}
h1{font-size:clamp(30px,5.6vw,50px);line-height:1.05;letter-spacing:-.025em;margin:18px auto 12px;max-width:16ch;text-wrap:balance;font-weight:820}
h1 .hl{color:var(--accent-deep)}
.hero p.lede{font-size:clamp(16px,2vw,19px);color:var(--ink-soft);max-width:60ch;margin:0 auto 22px;text-wrap:pretty}
.hero-cta{display:flex;gap:10px;justify-content:center;flex-wrap:wrap}
.trust-row{display:flex;gap:18px;justify-content:center;flex-wrap:wrap;margin-top:22px;color:var(--muted);font-size:13px;font-family:var(--mono)}
.trust-row span{display:inline-flex;align-items:center;gap:6px}
.trust-row .tick{color:var(--accent)}

/* ---- scanner ---- */
.tool{max-width:640px;margin:26px auto 0}
.tool-card{background:var(--panel);border:1px solid var(--line);border-radius:var(--r);box-shadow:var(--sh-lg);overflow:hidden}
.tabs{display:flex;gap:2px;padding:6px;background:var(--panel-2);border-bottom:1px solid var(--line)}
.tab{flex:1;border:0;background:transparent;color:var(--ink-soft);font-family:inherit;font-weight:600;font-size:14px;
  padding:10px;border-radius:10px;cursor:pointer;display:flex;align-items:center;justify-content:center;gap:7px}
.tab[aria-selected="true"]{background:var(--panel);color:var(--accent-deep);box-shadow:var(--sh)}
.tab-panel{padding:18px}
.tab-panel[hidden]{display:none}

#reader{width:100%;border-radius:12px;overflow:hidden;background:#000;min-height:60px}
.scan-stage{position:relative;border-radius:12px;overflow:hidden;background:var(--panel-2);border:1px dashed var(--line)}
.scan-placeholder{aspect-ratio:4/3;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px;color:var(--muted);text-align:center;padding:20px}
.scan-placeholder .big-ic{font-size:40px;opacity:.8}
.scan-frame{pointer-events:none;position:absolute;inset:12%;border-radius:14px;
  box-shadow:0 0 0 3px color-mix(in srgb,var(--accent) 70%,transparent) inset,0 0 0 100vmax rgba(0,0,0,.25);display:none}
.scanning .scan-frame{display:block}
.scan-line{position:absolute;left:12%;right:12%;height:2px;background:linear-gradient(90deg,transparent,var(--laser),transparent);
  top:12%;display:none;filter:drop-shadow(0 0 6px var(--laser))}
.scanning .scan-line{display:block;animation:sweep 2.4s ease-in-out infinite}
@keyframes sweep{0%,100%{top:14%}50%{top:84%}}
.tool-actions{display:flex;gap:10px;margin-top:14px;flex-wrap:wrap}
.tool-actions .btn{flex:1;min-width:130px}

.dropzone{border:2px dashed var(--line);border-radius:12px;padding:30px 18px;text-align:center;color:var(--muted);cursor:pointer;transition:.15s}
.dropzone:hover,.dropzone.drag{border-color:var(--accent);background:var(--accent-wash);color:var(--accent-deep)}
.dropzone .big-ic{font-size:36px;margin-bottom:8px}
.dropzone input{display:none}
#preview{margin-top:12px;max-height:220px;border-radius:10px;margin-inline:auto;width:auto}

/* ---- result card ---- */
.result{margin-top:16px;border:1px solid var(--line);border-radius:12px;overflow:hidden;display:none}
.result.show{display:block;animation:pop .25s ease}
@keyframes pop{from{opacity:0;transform:translateY(6px)}to{opacity:1;transform:none}}
.result-head{display:flex;align-items:center;gap:10px;padding:12px 14px;background:var(--accent-wash);border-bottom:1px solid var(--line)}
.result-head .type{font-family:var(--mono);font-size:12px;font-weight:700;color:var(--accent-deep);text-transform:uppercase;letter-spacing:.05em}
.result-head .fmt{margin-left:auto;font-family:var(--mono);font-size:11px;color:var(--muted);border:1px solid var(--line);padding:2px 7px;border-radius:100px;background:var(--panel)}
.result-body{padding:14px}
.result-value{font-family:var(--mono);font-size:15px;word-break:break-all;background:var(--panel-2);border:1px solid var(--line);
  border-radius:9px;padding:12px;color:var(--ink)}
.result-meta{margin-top:10px;font-size:14px;color:var(--ink-soft)}
.result-meta b{color:var(--ink)}
.result-actions{display:flex;gap:8px;margin-top:12px;flex-wrap:wrap}
.result-links{margin-top:12px;display:flex;flex-wrap:wrap;gap:8px}
.result-links a{font-size:13px;font-weight:600;text-decoration:none;color:var(--accent-deep);background:var(--accent-wash);
  border:1px solid color-mix(in srgb,var(--accent) 22%,transparent);padding:7px 11px;border-radius:100px}
.result-links a:hover{background:var(--accent);color:#fff}
.safety{margin-top:12px;font-size:13.5px;padding:10px 12px;border-radius:9px;border-left:3px solid var(--warn);background:var(--warn-wash);color:var(--ink-soft)}
.safety.ok{border-left-color:var(--ok);background:var(--ok-wash)}

.hint{font-size:13px;color:var(--muted);margin-top:10px;text-align:center}
.errline{color:var(--laser);font-size:13.5px;margin-top:10px;text-align:center;display:none}
.errline.show{display:block}

/* ---- generic sections ---- */
section.block{padding:clamp(34px,6vw,64px) 0}
.section-head{text-align:center;max-width:60ch;margin:0 auto clamp(22px,4vw,38px)}
.section-head .eyebrow{margin-bottom:12px}
h2{font-size:clamp(22px,3.4vw,34px);letter-spacing:-.02em;margin:0 0 10px;text-wrap:balance;font-weight:780}
.section-head p{color:var(--ink-soft);font-size:16.5px;margin:0}

.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:16px}
.feature{background:var(--panel);border:1px solid var(--line);border-radius:var(--r);padding:22px;box-shadow:var(--sh)}
.feature .ic{width:42px;height:42px;border-radius:11px;background:var(--accent-wash);color:var(--accent-deep);display:grid;place-items:center;font-size:20px;margin-bottom:12px}
.feature h3{margin:0 0 6px;font-size:17px;letter-spacing:-.01em}
.feature p{margin:0;color:var(--ink-soft);font-size:14.5px}

/* silo grid */
.silo-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:16px}
.silo-card{background:var(--panel);border:1px solid var(--line);border-radius:var(--r);padding:20px;box-shadow:var(--sh);
  text-decoration:none;color:inherit;display:flex;flex-direction:column;transition:transform .12s,box-shadow .15s,border-color .15s}
.silo-card:hover{transform:translateY(-3px);box-shadow:var(--sh-lg);border-color:color-mix(in srgb,var(--accent) 40%,var(--line))}
.silo-card .kicker{font-family:var(--mono);font-size:11px;color:var(--accent);letter-spacing:.08em;text-transform:uppercase}
.silo-card h3{margin:8px 0 6px;font-size:18px}
.silo-card p{margin:0 0 14px;color:var(--ink-soft);font-size:14px;flex:1}
.silo-card .go{font-size:13.5px;font-weight:700;color:var(--accent-deep)}

/* faq */
.faq{max-width:760px;margin:0 auto}
.faq details{border:1px solid var(--line);border-radius:12px;background:var(--panel);margin-bottom:10px;box-shadow:var(--sh)}
.faq summary{list-style:none;cursor:pointer;padding:16px 18px;font-weight:650;display:flex;justify-content:space-between;gap:12px;align-items:center}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";font-family:var(--mono);color:var(--accent);font-size:20px;flex:none}
.faq details[open] summary::after{content:"–"}
.faq details p{margin:0;padding:0 18px 16px;color:var(--ink-soft);font-size:15px}

/* prose (articles) */
.prose{max-width:720px;margin:0 auto}
.prose h2{margin-top:1.6em}
.prose h3{font-size:19px;margin:1.4em 0 .4em;letter-spacing:-.01em}
.prose p,.prose li{color:var(--ink-soft);font-size:16.5px}
.prose ul,.prose ol{padding-left:1.2rem}
.prose li{margin:.4rem 0}
.prose li::marker{color:var(--accent)}
.prose strong{color:var(--ink)}
.callout{border-left:3px solid var(--accent);background:var(--accent-wash);border-radius:0 10px 10px 0;padding:14px 16px;margin:18px 0;font-size:15px;color:var(--ink-soft)}
.callout.warn{border-left-color:var(--warn);background:var(--warn-wash)}
.tbl-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:12px;margin:18px 0;box-shadow:var(--sh)}
.prose table{border-collapse:collapse;width:100%;min-width:420px;font-size:14.5px;background:var(--panel)}
.prose th,.prose td{text-align:left;padding:10px 14px;border-bottom:1px solid var(--line-soft)}
.prose thead th{font-family:var(--mono);font-size:11px;text-transform:uppercase;letter-spacing:.05em;color:var(--muted);background:var(--panel-2)}
.prose td.mono{font-family:var(--mono);font-variant-numeric:tabular-nums}

/* breadcrumb */
.crumb{font-size:13px;color:var(--muted);font-family:var(--mono);padding:16px 0 0}
.crumb a{color:var(--muted);text-decoration:none}
.crumb a:hover{color:var(--accent-deep)}

/* generator */
.gen-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}
@media (max-width:720px){.gen-grid{grid-template-columns:1fr}}
.field{margin-bottom:14px}
.field label{display:block;font-size:13px;font-weight:600;color:var(--ink-soft);margin-bottom:6px}
.field input,.field select,.field textarea{width:100%;padding:11px 13px;border:1px solid var(--line);border-radius:10px;
  background:var(--panel);color:var(--ink);font-family:inherit;font-size:15px}
.field textarea{resize:vertical;min-height:84px;font-family:var(--mono);font-size:14px}
.gen-output{background:var(--panel);border:1px solid var(--line);border-radius:var(--r);padding:20px;box-shadow:var(--sh);
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;min-height:260px}
.gen-canvas{background:#fff;border-radius:10px;padding:14px;max-width:100%;display:grid;place-items:center}
.gen-canvas svg,.gen-canvas canvas,.gen-canvas img{max-width:100%;height:auto}

/* cta band */
.cta-band{background:linear-gradient(135deg,var(--accent-deep),var(--accent));color:#fff;border-radius:var(--r);
  padding:clamp(26px,4vw,42px);text-align:center;box-shadow:var(--sh-lg);position:relative;overflow:hidden}
.cta-band::before{content:"";position:absolute;inset:0;background-image:repeating-linear-gradient(90deg,#fff 0 2px,transparent 2px 6px);opacity:.06}
.cta-band h2{color:#fff;position:relative}
.cta-band p{color:rgba(255,255,255,.9);position:relative;max-width:52ch;margin:0 auto 18px}
.cta-band .btn-primary{background:#fff;color:var(--accent-deep);position:relative}
.cta-band .btn-primary:hover{background:#f0f0f0}

/* footer */
.site-foot{border-top:1px solid var(--line);background:var(--panel);margin-top:20px}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:24px;padding:44px 0 30px}
@media (max-width:720px){.foot-grid{grid-template-columns:1fr 1fr}}
.foot-grid h4{font-family:var(--mono);font-size:12px;text-transform:uppercase;letter-spacing:.06em;color:var(--muted);margin:0 0 12px}
.foot-grid a{display:block;color:var(--ink-soft);text-decoration:none;font-size:14px;padding:4px 0}
.foot-grid a:hover{color:var(--accent-deep)}
.foot-brand p{color:var(--muted);font-size:14px;max-width:34ch;margin:10px 0 0}
.foot-bottom{border-top:1px solid var(--line);padding:16px 0;color:var(--muted);font-size:13px;display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap}

.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);border:0}