/* Barcodely — free client-side barcode generators.
   Design language: industrial label-stock. Cool off-white paper with a faint
   graph grid, near-black ink, one signal-vermillion accent, IBM Plex Mono for
   codes/wordmarks and Archivo for editorial headings. High contrast, because a
   barcode is the highest-contrast object there is. */

:root {
  --ink: #16181c;
  --ink-soft: #4f5660;
  --ink-faint: #8a909a;
  --paper: #f1f1ee;
  --paper-2: #e9e9e4;
  --card: #ffffff;
  --line: #dedcd4;
  --line-strong: #c8c6bc;
  --accent: #e8431f;          /* signal vermillion — price-tag / scanner red */
  --accent-ink: #b8300f;
  --accent-wash: #fdeae4;
  --scan: #16a06a;            /* "good read" green for valid state */
  --shadow-sm: 0 1px 2px rgba(20, 22, 28, .07);
  --shadow-md: 0 10px 30px -12px rgba(20, 22, 28, .22), 0 2px 8px rgba(20,22,28,.05);
  --radius: 6px;
  --radius-sm: 4px;
  --max: 940px;
  --sans: "Archivo", ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, "SFMono-Regular", Menlo, Consolas, monospace;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--sans);
  color: var(--ink);
  background-color: var(--paper);
  /* graph-paper grid + a soft top wash */
  background-image:
    linear-gradient(rgba(20,22,28,.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(20,22,28,.035) 1px, transparent 1px),
    radial-gradient(900px 380px at 50% -200px, rgba(232,67,31,.07), transparent 70%);
  background-size: 26px 26px, 26px 26px, 100% 100%;
  line-height: 1.62;
  font-size: 17px;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--accent-ink); text-decoration: none; }
a:hover { text-decoration: underline; text-underline-offset: 2px; }

.wrap { max-width: var(--max); margin: 0 auto; padding: 0 20px; }

/* ---- Header --------------------------------------------------------- */
.site-header {
  border-bottom: 2px solid var(--ink);
  background: rgba(241, 241, 238, .9);
  backdrop-filter: saturate(140%) blur(6px);
  position: sticky; top: 0; z-index: 20;
}
.site-header .wrap { display: flex; align-items: center; justify-content: space-between; height: 60px; }
.brand {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: var(--mono);
  font-weight: 700; font-size: 17px; letter-spacing: -0.01em;
  color: var(--ink);
}
.brand:hover { text-decoration: none; }
/* tiny barcode glyph as the logo mark */
.brand .mark {
  display: inline-block; width: 26px; height: 22px;
  background-image: repeating-linear-gradient(90deg,
    var(--ink) 0, var(--ink) 2px, transparent 2px, transparent 4px,
    var(--ink) 4px, var(--ink) 5px, transparent 5px, transparent 8px,
    var(--accent) 8px, var(--accent) 11px, transparent 11px, transparent 13px,
    var(--ink) 13px, var(--ink) 14px, transparent 14px, transparent 17px,
    var(--ink) 17px, var(--ink) 20px, transparent 20px, transparent 22px,
    var(--ink) 22px, var(--ink) 24px);
}
.nav { display: flex; gap: 16px; font-family: var(--mono); font-size: 13px; font-weight: 500; }
.nav a { color: var(--ink-soft); }
.nav a:hover { color: var(--accent-ink); text-decoration: none; }
@media (max-width: 640px) { .nav { display: none; } }

/* ---- Hero ----------------------------------------------------------- */
.hero { padding: 50px 0 6px; }
.hero.center { text-align: center; }
.eyebrow {
  display: inline-block;
  font-family: var(--mono);
  font-size: 12px; font-weight: 600; letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--accent-ink);
  border: 1.5px solid var(--accent);
  padding: 4px 10px; border-radius: 999px;
  margin-bottom: 18px;
}
h1 {
  font-family: var(--sans);
  font-size: clamp(2.1rem, 5.6vw, 3.3rem);
  line-height: 1.02; letter-spacing: -0.035em;
  margin: 0 0 14px; font-weight: 800;
}
.lede { max-width: 640px; font-size: 1.13rem; color: var(--ink-soft); margin: 0; }
.hero.center .lede { margin: 0 auto; }

/* ---- Tool ----------------------------------------------------------- */
.tool {
  margin: 28px auto 8px;
  background: var(--card);
  border: 2px solid var(--ink);
  border-radius: var(--radius);
  box-shadow: var(--shadow-md);
  overflow: hidden;
}
/* The "stage": a light work-surface tray; the barcode renders on a white
   label that sits visibly on top of it. A flat neutral (not a checkerboard)
   because the exported PNG/SVG has a solid white background — a transparency
   checker would promise a state the output doesn't actually have. */
.bc-stage {
  position: relative;
  background: var(--paper-2);
  border-bottom: 2px solid var(--ink);
  padding: 34px 24px;
  display: flex; align-items: center; justify-content: center;
  min-height: 190px;
  overflow: hidden;
}
.bc-stage svg {
  max-width: 100%; height: auto; background: #fff;
  border: 1px solid var(--line);
  box-shadow: 0 2px 10px -3px rgba(20,22,28,.18);
  border-radius: 2px;
}
.bc-stage.is-invalid svg { opacity: .15; filter: grayscale(1); }
/* scanline sweep on a successful render */
.bc-stage::after {
  content: ""; position: absolute; top: 0; bottom: 0; width: 46%;
  left: -50%;
  background: linear-gradient(90deg, transparent, rgba(232,67,31,.0) 30%, rgba(232,67,31,.22) 50%, rgba(232,67,31,0) 70%, transparent);
  pointer-events: none; opacity: 0;
}
.bc-stage.scanned::after { animation: scan .7s cubic-bezier(.4,0,.2,1) 1; }
@keyframes scan { 0% { left: -50%; opacity: 1; } 100% { left: 110%; opacity: 0; } }
@media (prefers-reduced-motion: reduce) { .bc-stage.scanned::after { animation: none; } }

.bc-error {
  position: absolute; bottom: 12px; left: 50%; transform: translateX(-50%);
  font-family: var(--mono); font-size: 13px; color: var(--accent-ink);
  background: var(--accent-wash); border: 1px solid var(--accent);
  padding: 5px 12px; border-radius: 999px; white-space: nowrap; max-width: 92%;
  overflow: hidden; text-overflow: ellipsis;
}

/* input row */
.bc-input-row { display: flex; flex-direction: column; gap: 7px; padding: 20px 24px 6px; }
.bc-input-row label { font-family: var(--mono); font-size: 12px; font-weight: 600; letter-spacing: .04em; text-transform: uppercase; color: var(--ink-faint); }
#bc-value {
  font-family: var(--mono); font-size: 19px; font-weight: 500; color: var(--ink);
  background: #fff; border: 2px solid var(--line-strong); border-radius: var(--radius-sm);
  padding: 13px 15px; width: 100%; letter-spacing: 0.02em;
  transition: border-color .14s ease, box-shadow .14s ease;
}
#bc-value:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px rgba(232,67,31,.15); }
.bc-hint { font-family: var(--mono); font-size: 12.5px; color: var(--ink-faint); margin: 0; }

/* controls + actions */
.bc-controls { display: flex; flex-wrap: wrap; align-items: flex-end; gap: 14px 18px; padding: 16px 24px 22px; }
.field { display: flex; flex-direction: column; gap: 6px; }
.field label { font-family: var(--mono); font-size: 11.5px; font-weight: 600; letter-spacing: .04em; text-transform: uppercase; color: var(--ink-faint); }
.field select {
  appearance: none; font: inherit; font-size: 14.5px; font-weight: 600; color: var(--ink);
  background: #fff; border: 1.5px solid var(--line-strong); border-radius: var(--radius-sm);
  padding: 9px 32px 9px 12px; min-width: 104px; cursor: pointer;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 24 24' fill='none' stroke='%234f5660' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
  background-repeat: no-repeat; background-position: right 10px center;
  transition: border-color .14s ease, box-shadow .14s ease;
}
.field select:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px rgba(232,67,31,.15); }
.actions { display: flex; gap: 10px; margin-left: auto; }

.btn {
  font: inherit; font-family: var(--mono); font-weight: 600; font-size: 13.5px;
  letter-spacing: .02em;
  border: none; cursor: pointer; border-radius: var(--radius-sm);
  padding: 11px 18px; transition: transform .07s ease, background .15s ease, box-shadow .15s ease, opacity .15s ease;
}
.btn:active { transform: translateY(1px); }
.btn[disabled] { opacity: .4; cursor: not-allowed; }
.btn-primary { color: #fff; background: var(--accent); box-shadow: 0 4px 14px -4px rgba(232,67,31,.6); }
.btn-primary:hover { background: var(--accent-ink); }
.btn-ghost { color: var(--ink); background: var(--paper-2); border: 1.5px solid var(--line-strong); }
.btn-ghost:hover { background: #e0dfd8; }

.noscript {
  margin: 18px 24px 22px; padding: 13px 16px; border-radius: var(--radius-sm);
  background: #fff7ec; border: 1px solid #f0d6a8; color: #7a5418; font-size: 14px;
}

/* ---- Prose --------------------------------------------------------- */
.prose { margin: 44px auto; max-width: 760px; }
.prose h2 { font-family: var(--sans); font-weight: 800; font-size: 1.5rem; letter-spacing: -0.02em; margin: 38px 0 12px; }
.prose p { color: var(--ink-soft); }
.faq dt { font-weight: 700; margin-top: 20px; }
.faq dd { margin: 6px 0 0; color: var(--ink-soft); }

/* ---- Hub grid ------------------------------------------------------ */
.section-title { font-family: var(--sans); font-weight: 800; font-size: 1.35rem; letter-spacing: -0.02em; margin: 40px 0 4px; }
.section-sub { max-width: 660px; color: var(--ink-soft); font-size: 0.99rem; margin: 4px 0 0; }
.grid { display: grid; gap: 14px; grid-template-columns: repeat(auto-fill, minmax(252px, 1fr)); margin: 18px 0 30px; }
.card {
  display: block; background: var(--card); border: 2px solid var(--ink);
  border-radius: var(--radius); padding: 20px; box-shadow: var(--shadow-sm);
  transition: transform .12s ease, box-shadow .16s ease; color: inherit;
}
.card:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); text-decoration: none; }
.card .tag { font-family: var(--mono); font-size: 11px; font-weight: 600; letter-spacing: .1em; text-transform: uppercase; color: var(--accent-ink); }
.card h3 { font-family: var(--sans); margin: 8px 0 6px; font-size: 1.16rem; letter-spacing: -0.01em; font-weight: 800; }
.card p { margin: 0; color: var(--ink-soft); font-size: 0.94rem; }
.card .vol { display: inline-block; margin-top: 12px; font-family: var(--mono); font-size: 12px; font-weight: 500; color: var(--ink-soft); }
/* mini barcode stripe on each card */
.card .stripe {
  height: 26px; margin-top: 14px; border-radius: 2px;
  background-image: repeating-linear-gradient(90deg,
    var(--ink) 0, var(--ink) 2px, transparent 2px, transparent 5px,
    var(--ink) 5px, var(--ink) 6px, transparent 6px, transparent 9px,
    var(--ink) 9px, var(--ink) 12px, transparent 12px, transparent 14px,
    var(--ink) 14px, var(--ink) 15px, transparent 15px, transparent 19px);
  opacity: .82;
}

/* ---- Related strip ------------------------------------------------- */
.related { margin: 42px 0; }
.related h2 { font-family: var(--mono); font-size: 13px; font-weight: 600; color: var(--ink-faint); text-transform: uppercase; letter-spacing: .1em; }
.chips { display: flex; flex-wrap: wrap; gap: 9px; margin-top: 12px; }
.chip { font-family: var(--mono); font-size: 13px; font-weight: 500; border: 1.5px solid var(--line-strong); border-radius: 999px; padding: 7px 14px; background: #fff; color: var(--ink); }
.chip:hover { border-color: var(--accent); color: var(--accent-ink); text-decoration: none; }

/* ---- Footer -------------------------------------------------------- */
.site-footer { border-top: 2px solid var(--ink); margin-top: 54px; padding: 28px 0 44px; font-family: var(--mono); font-size: 13px; color: var(--ink-faint); }
.site-footer .wrap { display: flex; flex-wrap: wrap; gap: 14px 26px; justify-content: space-between; align-items: center; }
.site-footer nav { display: flex; flex-wrap: wrap; gap: 8px 16px; }
.site-footer a { color: var(--ink-soft); font-weight: 500; }