/* Visa Copy - certificate paper, navy ink and a red seal. Status is a word on a tag (valid, words = figure, check);
 * colour repeats it. Print shows only the two-page packet. */
:root {
  --bg: #f3f1ea; --card: #fffefa; --ink: #1f2a44; --ink2: #3b4560; --muted: #6b7286; --line: #ddd8cb; --soft: #f8f6ef;
  --accent: #b91c1c; --accent-ink: #ffffff; --navy: #1f2a44; --ok: #2f6b3c; --ok-bg: #e5f2e7; --bad: #b42318; --bad-bg: #fde7e4; --inf: #8a5a00; --inf-bg: #fbefd5;
  --shadow: 0 1px 2px rgba(30, 30, 50, .06), 0 8px 22px rgba(30, 30, 50, .05);
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  --serif: Georgia, "Times New Roman", "Songti SC", "SimSun", "Noto Serif SC", serif; --mono: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
}
[data-theme="dark"] {
  --bg: #13151b; --card: #1b1e26; --ink: #e8eaf0; --ink2: #c9cdd8; --muted: #9aa1b2; --line: #323745; --soft: #21252f;
  --accent: #f87171; --accent-ink: #1a0b0b; --navy: #c7d2fe; --ok: #84d39a; --ok-bg: #19301f; --bad: #ff8f80; --bad-bg: #3b1f1b; --inf: #f2bd5c; --inf-bg: #352a12;
  --shadow: 0 1px 2px rgba(0, 0, 0, .5);
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--bg); color: var(--ink); font: 16px/1.55 var(--sans); overflow-wrap: anywhere; }
a { color: var(--accent); }
.hidden { display: none !important; } [hidden] { display: none !important; } .small { font-size: .875rem; } .muted { color: var(--muted); }
.top { display: flex; align-items: center; gap: 12px; padding: 10px 16px; background: var(--card); border-bottom: 1px solid var(--line); position: sticky; top: 0; z-index: 5; flex-wrap: wrap; }
.back { text-decoration: none; color: var(--muted); font-size: .9rem; } .brand { display: flex; align-items: center; gap: 8px; font-size: 1.05rem; } .logo { width: 24px; height: 24px; }
.session { margin-left: auto; display: flex; gap: 6px; align-items: center; flex-wrap: wrap; }
.chip-s { font: 600 .8rem var(--mono); padding: 4px 9px; border-radius: 999px; background: var(--soft); border: 1px solid var(--line); }
.btn { font: 600 .9rem var(--sans); padding: 8px 15px; border-radius: 10px; border: 1px solid var(--line); background: var(--card); color: var(--ink); cursor: pointer; text-decoration: none; display: inline-block; min-height: 38px; }
.btn:hover:not(:disabled) { border-color: var(--accent); }
.btn.solid { background: var(--accent); color: var(--accent-ink); border-color: var(--accent); } .btn.solid:hover:not(:disabled) { filter: brightness(1.06); color: var(--accent-ink); }
.btn.tiny { padding: 5px 11px; font-size: .82rem; min-height: 32px; } .btn.big { font-size: 1.05rem; padding: 12px 22px; } .btn:disabled { opacity: .45; cursor: not-allowed; }
.inp { width: 100%; font: 1rem var(--sans); padding: 9px 11px; border-radius: 10px; border: 1px solid var(--line); background: var(--card); color: var(--ink); }
.inp.mono { font: .9rem/1.5 var(--mono); } .zh-in { font: 1.02rem/1.75 var(--serif); }
input[type="file"].inp { padding: 7px 8px; font-size: .85rem; }
.inp:focus, .btn:focus-visible, .sample:focus-visible { outline: 2px solid var(--accent); outline-offset: 1px; }
.lab { display: block; font-weight: 600; font-size: .88rem; margin: 12px 0 4px; }
.row3 { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 0 14px; } .row3 > div { min-width: 0; }
main { max-width: 1080px; margin: 0 auto; padding: 0 16px 40px; }
.hero { padding: 28px 0 8px; }
.eyebrow { letter-spacing: .06em; font: 700 .8rem var(--sans); color: var(--accent); margin: 0 0 6px; }
h1 { font: 700 2.5rem/1.1 var(--serif); margin: 0 0 10px; color: var(--navy); }
h1 .sub { display: block; font: 500 1.12rem var(--sans); color: var(--muted); margin-top: 10px; }
.lede { max-width: 800px; color: var(--ink2); }
.samples { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; margin-top: 10px; }
.sample { font: 600 .85rem var(--sans); padding: 6px 12px; border-radius: 999px; border: 1px solid var(--line); background: var(--card); color: var(--ink); cursor: pointer; }
.sample.on { background: var(--navy); color: var(--card); border-color: var(--navy); }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 16px; padding: 18px 20px; margin: 16px 0; box-shadow: var(--shadow); min-width: 0; }
.ch { margin: 0 0 8px; font-size: 1.18rem; display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.no { width: 26px; height: 26px; border-radius: 50%; background: var(--accent); color: var(--accent-ink); display: inline-flex; align-items: center; justify-content: center; font: 700 .8rem var(--mono); }
.free, .paid { font: 700 .66rem var(--mono); text-transform: uppercase; letter-spacing: .08em; padding: 3px 8px; border-radius: 999px; }
.free { background: var(--ok-bg); color: var(--ok); } .paid { background: var(--inf-bg); color: var(--inf); }
.kh { font-size: .8rem; text-transform: uppercase; letter-spacing: .08em; color: var(--muted); margin: 16px 0 6px; }
.note { background: var(--inf-bg); border-left: 3px solid var(--inf); padding: 8px 12px; border-radius: 8px; font-size: .9rem; }
.actions { display: flex; flex-wrap: wrap; gap: 8px; margin: 12px 0 6px; align-items: center; }
.empty-note { color: var(--muted); font-style: italic; }
.zh { font-family: var(--serif); } .num { font-family: var(--mono); font-variant-numeric: tabular-nums; }

/* what the page reads */
.dt { font-size: 1.05rem; margin: 0 0 8px; } .dt .zh { color: var(--muted); margin-left: 6px; }
.tw { overflow-x: auto; margin: 8px 0 12px; }
.ft, .sbs { width: 100%; border-collapse: collapse; font-size: .9rem; }
.ft th, .sbs th { text-align: left; font: 700 .72rem var(--mono); text-transform: uppercase; letter-spacing: .05em; color: var(--muted); padding: 4px 8px; border-bottom: 2px solid var(--line); }
.ft td, .sbs td { padding: 6px 8px; border-bottom: 1px solid var(--line); vertical-align: top; }
td.lc { font: 700 .78rem var(--mono); color: var(--muted); width: 3.6em; } .ft th:first-child, .sbs th:first-child { white-space: nowrap; }
.sbs td.zh { width: 42%; } .sbs tr.miss td { background: var(--bad-bg); }
.tag { font: 700 .7rem var(--sans); padding: 2px 8px; border-radius: 999px; white-space: nowrap; }
.t-ok { background: var(--ok-bg); color: var(--ok); } .t-bad { background: var(--bad-bg); color: var(--bad); } .t-info { background: var(--inf-bg); color: var(--inf); }
.gl { display: flex; flex-wrap: wrap; gap: 6px; margin: 6px 0 0; } .g { font-size: .82rem; background: var(--soft); border: 1px solid var(--line); border-radius: 8px; padding: 2px 8px; } .g .zh { color: var(--accent); margin-right: 4px; }

/* run */
.progress { background: var(--soft); border-radius: 10px; padding: 12px 14px; margin: 10px 0; }
.steps { list-style: none; padding: 0; margin: 8px 0; } .step { padding: 2px 0; color: var(--muted); font-size: .9rem; } .step.done { color: var(--ok); } .step.active { color: var(--ink); font-weight: 700; }
.step-ic { font-family: var(--mono); display: inline-block; width: 1em; }
.raw { white-space: pre-wrap; background: var(--soft); padding: 10px; border-radius: 8px; font: .8rem var(--mono); max-height: 320px; overflow: auto; }
.result { border-top: 1px solid var(--line); margin-top: 12px; padding-top: 12px; } .result.empty h3 { display: none; }
.rhead { display: flex; justify-content: space-between; align-items: center; gap: 10px; flex-wrap: wrap; }
.badge { font: 700 .78rem var(--mono); letter-spacing: .06em; padding: 5px 11px; border-radius: 999px; border: 2px solid var(--line); color: var(--muted); }
.badge.v-ready { border-color: var(--ok); color: var(--ok); } .badge.v-check { border-color: var(--bad); color: var(--bad); }
.rnote { font-size: 1.05rem; font-weight: 600; } .result h3 { font-size: 1rem; margin: 18px 0 8px; }
.recon, .saved { list-style: none; padding: 0; margin: 0; }
.recon li { padding: 6px 10px; margin: 4px 0; border-radius: 8px; font-size: .9rem; } .recon li.warn { background: var(--bad-bg); } .recon li.info { background: var(--inf-bg); }
li.none { color: var(--muted); font-style: italic; background: transparent; }
.hrow { display: flex; justify-content: space-between; gap: 10px; padding: 10px 0; border-bottom: 1px solid var(--line); flex-wrap: wrap; }
.hinfo { display: flex; flex-direction: column; min-width: 0; flex: 1; } .hbtns { display: flex; gap: 6px; align-items: center; }
.about p { max-width: 820px; }
.foot { max-width: 1080px; margin: 0 auto; padding: 12px 16px 40px; color: var(--muted); font-size: .85rem; }
.toasts { position: fixed; right: 16px; bottom: 16px; display: flex; flex-direction: column; gap: 8px; z-index: 20; max-width: calc(100vw - 32px); }
.toast { background: var(--ink); color: var(--card); padding: 10px 14px; border-radius: 10px; font-size: .9rem; box-shadow: var(--shadow); transition: opacity .5s; }
.toast.err { background: var(--bad); color: #fff; } .toast.gone { opacity: 0; } .toast a { color: inherit; font-weight: 700; }

/* the print packet: hidden on screen, the only thing printed */
.packet { display: none; }
@media (max-width: 820px) {
  .row3 { grid-template-columns: 1fr; } h1 { font-size: 2rem; } .card { padding: 14px; } .back-t { display: none; }
  .sbs, .sbs tbody, .sbs tr, .sbs td { display: block; width: auto !important; } .sbs thead { display: none; }
  .sbs tr { border-bottom: 1px solid var(--line); padding: 6px 0; } .sbs td { border: 0; padding: 2px 4px; } .sbs td.zh { color: var(--muted); }
}
@media print {
  @page { size: A4; margin: 18mm 18mm 20mm; }
  body { background: #fff; color: #000; font: 11.5pt/1.5 var(--serif); }
  body > *:not(.packet) { display: none !important; }
  .packet { display: block; }
  .pg { page-break-after: always; break-after: page; }
  .pg:last-child { page-break-after: auto; break-after: auto; }
  .pg-k { font: 700 8pt var(--sans); text-transform: uppercase; letter-spacing: .12em; color: #555; margin: 0 0 6mm; }
  .pg-img { display: block; max-width: 100%; max-height: 240mm; margin: 0 auto; object-fit: contain; }
  .pg-zh p { margin: 0 0 2.5mm; font-size: 12pt; }
  .pg-t { text-align: center; font: 700 15pt var(--serif); margin: 0 0 8mm; text-transform: uppercase; letter-spacing: .04em; }
  .pg-body p { margin: 0 0 3mm; } .pg-body p.miss { color: #b42318; }
  .pg-stmt { margin-top: 14mm; border-top: 1px solid #000; padding-top: 4mm; font-size: 10.5pt; }
  .pg-sign { display: flex; gap: 8mm; flex-wrap: wrap; margin-top: 8mm; } .pg-sign .blank { display: inline-block; width: 42mm; border-bottom: 1px solid #000; height: 1em; vertical-align: bottom; }
}