/* dtscheck — clinical instrument aesthetic */
:root {
  --paper: #f3f3f0;
  --card: #ffffff;
  --ink: #15191b;
  --ink-soft: #3c4448;
  --muted: #767f83;
  --faint: #9aa1a4;
  --line: #e3e3dd;
  --line-strong: #d2d3cb;

  --red: #c4302b;
  --red-ink: #8f1f1b;
  --red-bg: #fbeceb;
  --green: #1d7a48;
  --green-ink: #155c36;
  --green-bg: #e8f3ec;
  --amber: #b07712;
  --amber-ink: #8a5d0c;
  --amber-bg: #faf1df;

  --r: 14px;
  --r-sm: 10px;
  --shadow: 0 1px 2px rgba(21, 25, 27, .04), 0 12px 28px -18px rgba(21, 25, 27, .28);
  --sans: "IBM Plex Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, "SF Mono", Menlo, monospace;
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }
html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  min-height: 100dvh;
  color: var(--ink);
  font: 16px/1.55 var(--sans);
  background-color: var(--paper);
  background-image: radial-gradient(rgba(21, 25, 27, .045) 1px, transparent 1.4px);
  background-size: 22px 22px;
  background-attachment: fixed;
  -webkit-font-smoothing: antialiased;
  padding-bottom: calc(40px + env(safe-area-inset-bottom));
  overflow-x: hidden;
}

/* ---------- Masthead ---------- */
.masthead-wrap {
  position: sticky; top: 0; z-index: 20;
  background: color-mix(in srgb, var(--paper) 86%, transparent);
  backdrop-filter: saturate(1.4) blur(10px);
  border-bottom: 1px solid var(--line);
}
.masthead {
  width: min(620px, 100%); margin: 0 auto;
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 20px;
}
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; color: var(--ink); flex-shrink: 0; }
.brand-mark {
  width: 34px; height: 34px; display: grid; place-items: center;
  background: var(--ink); color: var(--paper); border-radius: 9px;
}
.brand-mark svg { width: 21px; height: 21px; }
.brand-mark .mk-check { stroke: #5fd08a; }
.brand-word { font-weight: 600; font-size: 1.22rem; letter-spacing: -.03em; }
.brand-word span { color: var(--green); }

.status {
  display: flex; align-items: center; gap: 7px;
  font: 500 .76rem/1 var(--mono); color: var(--muted);
  padding: 6px 10px; border: 1px solid var(--line);
  border-radius: 999px; background: var(--card);
  min-width: 0; overflow: hidden;
}
.status-text { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.status-dot { flex-shrink: 0; width: 7px; height: 7px; border-radius: 50%; background: var(--faint); }
.status.live .status-dot { background: var(--green); box-shadow: 0 0 0 0 rgba(29,122,72,.5); animation: pulse 2.4s ease-out infinite; }
.status.err .status-dot { background: var(--amber); }
.status.err { color: var(--amber-ink); }
@keyframes pulse { 0% { box-shadow: 0 0 0 0 rgba(29,122,72,.45); } 70% { box-shadow: 0 0 0 6px rgba(29,122,72,0); } 100% { box-shadow: 0 0 0 0 rgba(29,122,72,0); } }

/* ---------- Layout ---------- */
.page { width: min(620px, 100%); margin: 0 auto; padding: 0 20px; }

.hero { padding: 38px 2px 18px; }
.hero h1 { margin: 0; font-size: clamp(1.7rem, 6vw, 2.15rem); letter-spacing: -.035em; line-height: 1.08; }
.hero p { margin: 12px 0 0; color: var(--ink-soft); max-width: 46ch; font-size: 1.02rem; }

/* ---------- Scanner ---------- */
.scanner { display: flex; flex-direction: column; gap: 14px; }
.viewfinder {
  position: relative; padding: 16px;
  background: var(--card); border: 1px solid var(--line);
  border-radius: var(--r); box-shadow: var(--shadow);
  overflow: hidden;
}
.corner { position: absolute; width: 18px; height: 18px; border: 2px solid var(--line-strong); transition: border-color .3s; }
.corner.tl { top: 9px; left: 9px; border-right: 0; border-bottom: 0; border-top-left-radius: 6px; }
.corner.tr { top: 9px; right: 9px; border-left: 0; border-bottom: 0; border-top-right-radius: 6px; }
.corner.bl { bottom: 9px; left: 9px; border-right: 0; border-top: 0; border-bottom-left-radius: 6px; }
.corner.br { bottom: 9px; right: 9px; border-left: 0; border-top: 0; border-bottom-right-radius: 6px; }
.viewfinder.scanning .corner { border-color: var(--green); }

.scanline {
  position: absolute; left: 14px; right: 14px; top: 8%; height: 2px; opacity: 0;
  background: linear-gradient(90deg, transparent, var(--green), transparent);
  box-shadow: 0 0 10px 1px rgba(29,122,72,.5);
}
.viewfinder.scanning .scanline { opacity: 1; animation: sweep 1.15s cubic-bezier(.6,0,.4,1) infinite; }
@keyframes sweep { 0% { top: 10%; } 50% { top: 88%; } 100% { top: 10%; } }

.scan-btn {
  position: relative; width: 100%;
  display: flex; flex-direction: column; align-items: center; gap: 12px;
  padding: 30px 16px; background: transparent; border: 0; cursor: pointer;
  color: var(--ink); font: inherit;
  -webkit-tap-highlight-color: transparent;
}
.scan-ico { width: 40px; height: 40px; color: var(--ink); transition: transform .2s; }
.scan-btn:active .scan-ico { transform: scale(.92); }
.scan-label { font-weight: 600; font-size: 1.12rem; letter-spacing: -.01em; }
.scan-busy { display: none; font: 500 .92rem var(--mono); color: var(--green-ink); }
.viewfinder.scanning .scan-ico, .viewfinder.scanning .scan-label { display: none; }
.viewfinder.scanning .scan-busy { display: block; }
.viewfinder.scanning .scan-btn { cursor: progress; }

.alt-actions { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.ghost-btn {
  display: flex; align-items: center; justify-content: center; gap: 8px;
  padding: 13px; border: 1px solid var(--line-strong); border-radius: var(--r-sm);
  background: var(--card); color: var(--ink-soft); font: 500 .96rem var(--sans);
  cursor: pointer; transition: border-color .15s, color .15s, transform .04s;
}
.ghost-btn svg { width: 18px; height: 18px; }
.ghost-btn:hover { border-color: var(--ink); color: var(--ink); }
.ghost-btn:active { transform: scale(.98); }

/* Inputs + solid button */
.code-field {
  width: 100%; background: #fbfbf9; border: 1px solid var(--line-strong);
  border-radius: var(--r-sm); color: var(--ink); padding: 14px;
  font: 600 1.12rem/1.2 var(--mono); letter-spacing: .08em; text-transform: uppercase;
}
.code-field::placeholder { color: var(--faint); font-weight: 400; }
.code-field:focus { outline: none; border-color: var(--ink); box-shadow: 0 0 0 3px rgba(21,25,27,.08); }

.solid-btn {
  background: var(--ink); color: var(--paper); border: 1px solid var(--ink);
  border-radius: var(--r-sm); padding: 14px 20px; font: 600 1rem var(--sans);
  cursor: pointer; white-space: nowrap; transition: transform .04s, opacity .15s;
}
.solid-btn:hover { opacity: .9; }
.solid-btn:active { transform: scale(.98); }

.manual { display: flex; gap: 10px; }
.manual .code-field { flex: 1; }

/* ---------- Panels (confirm + log) ---------- */
.panel {
  background: var(--card); border: 1px solid var(--line);
  border-radius: var(--r); box-shadow: var(--shadow);
  padding: 18px; margin-top: 16px;
}
.panel-kicker {
  font: 600 .72rem/1 var(--mono); letter-spacing: .14em; text-transform: uppercase;
  color: var(--muted); margin-bottom: 14px;
}

.chip {
  background: #f4f4ef; border: 1px solid var(--line-strong); color: var(--ink);
  border-radius: 999px; padding: 5px 10px; font: 600 .78rem var(--mono);
  cursor: pointer; transition: border-color .15s;
}
.chip:hover { border-color: var(--ink); }
.text-btn { background: none; border: 0; color: var(--muted); font: 500 .86rem var(--sans); cursor: pointer; text-decoration: underline; text-underline-offset: 3px; }
.text-btn:hover { color: var(--ink); }

.hint { margin: 2px 2px 0; font-size: .82rem; color: var(--faint); }
.progress { margin: 2px 2px 0; font: 500 .9rem var(--mono); color: var(--green-ink); }

/* ---------- Summary banner ---------- */
#results { margin-top: 18px; }
.summary {
  display: flex; gap: 14px; align-items: center; flex-wrap: wrap;
  border-radius: var(--r); padding: 18px; border: 1px solid var(--line);
  background: var(--card); box-shadow: var(--shadow);
  animation: drop .22s cubic-bezier(.2,.8,.2,1);
}
@keyframes drop { from { transform: translateY(-6px); opacity: 0; } to { transform: none; opacity: 1; } }
.sum-ico { flex: 0 0 auto; width: 44px; height: 44px; border-radius: 11px; display: grid; place-items: center; color: #fff; }
.sum-ico svg { width: 26px; height: 26px; }
.sum-main { flex: 1; min-width: 140px; }
.sum-head { font: 700 1.25rem/1.1 var(--sans); letter-spacing: -.02em; }
.sum-sub { margin-top: 3px; font-size: .88rem; color: var(--ink-soft); }
.sum-counts { display: flex; gap: 6px; flex-wrap: wrap; }
.pill { font: 700 .68rem/1 var(--mono); letter-spacing: .04em; text-transform: uppercase; padding: 6px 9px; border-radius: 999px; }
.pill.recalled { background: var(--red); color: #fff; }
.pill.clear { background: var(--green); color: #fff; }
.pill.review { background: var(--amber); color: #fff; }
.summary.recalled { background: var(--red-bg); border-color: color-mix(in srgb, var(--red) 35%, var(--line)); }
.summary.recalled .sum-ico { background: var(--red); }
.summary.recalled .sum-head { color: var(--red-ink); }
.summary.clear { background: var(--green-bg); border-color: color-mix(in srgb, var(--green) 30%, var(--line)); }
.summary.clear .sum-ico { background: var(--green); }
.summary.clear .sum-head { color: var(--green-ink); }
.summary.review { background: var(--amber-bg); border-color: color-mix(in srgb, var(--amber) 36%, var(--line)); }
.summary.review .sum-ico { background: var(--amber); }
.summary.review .sum-head { color: var(--amber-ink); }

/* ---------- Results list ---------- */
.results-head { display: flex; align-items: center; justify-content: space-between; margin: 18px 2px 4px; }
.results-head .panel-kicker { margin: 0; }
.result-list { list-style: none; margin: 0; padding: 0; }
.r-item {
  display: grid; grid-template-columns: 46px 1fr auto auto; align-items: center; gap: 12px;
  background: var(--card); border: 1px solid var(--line); border-left-width: 4px;
  border-radius: var(--r-sm); padding: 12px; margin-top: 10px;
}
.r-item.recalled { border-left-color: var(--red); }
.r-item.clear { border-left-color: var(--green); }
.r-item.review { border-left-color: var(--amber); }
.r-item.pending { border-left-color: var(--line-strong); }
.r-thumb {
  width: 46px; height: 46px; border-radius: 8px; border: 1px solid var(--line);
  background: #f1f1ec center/cover no-repeat; display: grid; place-items: center;
  font-size: 20px; color: var(--faint);
}
.r-body { min-width: 0; }
.r-lot {
  width: 100%; border: 0; background: transparent; color: var(--ink); padding: 2px 0;
  font: 600 1.02rem var(--mono); letter-spacing: .04em; text-transform: uppercase;
  border-bottom: 1px dashed transparent;
}
.r-lot:focus { outline: none; border-bottom-color: var(--ink); }
.r-lot:hover { border-bottom-color: var(--line-strong); }
.r-meta { margin-top: 3px; display: flex; align-items: center; gap: 6px; flex-wrap: wrap; }
.r-product { font: 500 .8rem var(--sans); color: var(--ink-soft); }
.r-product.muted { color: var(--muted); font-weight: 400; }
.r-chips { display: flex; gap: 6px; flex-wrap: wrap; margin-top: 7px; }
.r-badge { font: 700 .66rem/1 var(--mono); letter-spacing: .07em; text-transform: uppercase; padding: 6px 9px; border-radius: 6px; white-space: nowrap; }
.r-badge.recalled { background: var(--red); color: #fff; }
.r-badge.clear { background: var(--green); color: #fff; }
.r-badge.review { background: var(--amber); color: #fff; }
.r-badge.pending { background: #e9e9e3; color: var(--muted); }
.r-remove { background: none; border: 0; color: var(--faint); font-size: 22px; line-height: 1; cursor: pointer; padding: 0 2px; }
.r-remove:hover { color: var(--red); }

/* status tag shared by sources + result meta */
.src-tag { font: 700 .64rem/1 var(--mono); letter-spacing: .06em; text-transform: uppercase; padding: 4px 7px; border-radius: 5px; }
.src-tag.official { background: var(--green-bg); color: var(--green-ink); border: 1px solid color-mix(in srgb, var(--green) 30%, transparent); }
.src-tag.ref { background: var(--amber-bg); color: var(--amber-ink); border: 1px solid color-mix(in srgb, var(--amber) 35%, transparent); }
.src-tag.mini { padding: 3px 6px; font-size: .6rem; }

/* ---------- Recently added ---------- */
.recent { margin-top: 18px; }
.recent-list { list-style: none; margin: 0; padding: 0; }
.rc-entry { padding: 12px 0; border-top: 1px solid var(--line); }
.rc-entry:first-child { border-top: 0; padding-top: 0; }
.rc-head { display: flex; align-items: baseline; justify-content: space-between; margin-bottom: 8px; }
.rc-date { font: 600 .9rem var(--sans); }
.rc-count { font: 700 .64rem var(--mono); letter-spacing: .06em; text-transform: uppercase; color: #fff; background: var(--red); padding: 4px 8px; border-radius: 999px; }
.rc-codes { list-style: none; margin: 0; padding: 0; display: grid; gap: 6px; }
.rc-code { display: flex; align-items: baseline; gap: 10px; flex-wrap: wrap; }
.rc-lot { font: 600 .92rem var(--mono); letter-spacing: .03em; }
.rc-prod { font-size: .78rem; color: var(--muted); }
.rc-more { font: 500 .8rem var(--mono); color: var(--faint); }
.recent-note { font-size: .82rem; color: var(--muted); margin: 12px 0 0; }

/* ---------- Sources ---------- */
.sources { margin-top: 18px; }
.src-list { list-style: none; margin: 0 0 14px; padding: 0; }
.src-item { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; padding: 11px 0; border-top: 1px solid var(--line); }
.src-item:first-child { border-top: 0; }
.src-name { font-weight: 600; font-size: .92rem; }
.src-maker { color: var(--muted); font-weight: 400; font-size: .82rem; }
.src-count { font: 500 .8rem var(--mono); color: var(--faint); margin-left: auto; }
.src-links { flex-basis: 100%; font-size: .8rem; }
.src-links a { color: var(--ink-soft); text-decoration: underline; text-underline-offset: 2px; }
.sources-note { font-size: .82rem; line-height: 1.6; color: var(--muted); margin: 4px 0 0; }
.sources-note strong { color: var(--ink-soft); }

/* ---------- Review (pick code -> pick device) ---------- */
.review {
  border: 1px solid var(--line-strong); border-radius: var(--r);
  background: var(--card); box-shadow: var(--shadow); padding: 16px;
  animation: drop .2s cubic-bezier(.2,.8,.2,1);
}
.rv-top { display: flex; align-items: center; gap: 12px; }
.rv-thumb {
  flex: 0 0 auto; width: 54px; height: 54px; border-radius: var(--r-sm);
  background: #f4f4ef center/cover no-repeat; border: 1px solid var(--line-strong);
  display: grid; place-items: center; color: var(--muted); font-size: 1.4rem;
}
.rv-thumb.typed { background-image: none; }
.rv-reading { margin: 0; color: var(--muted); font: 500 .92rem var(--sans); display: flex; align-items: center; gap: 9px; }
.rv-spin { width: 15px; height: 15px; border: 2px solid var(--line-strong); border-top-color: var(--ink); border-radius: 50%; animation: spin .7s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

.rv-step { margin-top: 16px; }
.rv-label { display: flex; align-items: center; gap: 8px; margin: 0 0 10px; font: 600 .9rem var(--sans); color: var(--ink); }
.rv-num { flex: 0 0 auto; width: 20px; height: 20px; border-radius: 50%; background: var(--ink); color: var(--paper); font: 700 .72rem/20px var(--mono); text-align: center; }

.rv-candidates { display: flex; flex-wrap: wrap; gap: 8px; }
.cand-chip {
  background: #f4f4ef; border: 1px solid var(--line-strong); color: var(--ink);
  border-radius: 999px; padding: 9px 14px; font: 600 .9rem var(--mono); letter-spacing: .04em;
  cursor: pointer; transition: border-color .15s, background .15s, color .15s;
}
.cand-chip:hover { border-color: var(--ink); }
.cand-chip.on { background: var(--ink); color: var(--paper); border-color: var(--ink); }
.rv-none { margin: 0 0 10px; font-size: .86rem; color: var(--muted); }
.rv-type { display: flex; gap: 10px; margin-top: 10px; }
.rv-type .code-field { flex: 1; }

.rv-services { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; }
.svc-btn {
  padding: 13px 8px; border: 1px solid var(--line-strong); border-radius: var(--r-sm);
  background: var(--card); color: var(--ink-soft); font: 600 .92rem var(--sans);
  cursor: pointer; transition: border-color .15s, background .15s, color .15s, transform .04s;
}
.svc-btn:hover { border-color: var(--ink); color: var(--ink); }
.svc-btn:active { transform: scale(.98); }
.svc-btn.on { background: var(--ink); color: var(--paper); border-color: var(--ink); }

.rv-actions { display: flex; align-items: center; gap: 14px; margin-top: 18px; }
.rv-actions .solid-btn { flex: 1; }
.solid-btn:disabled { opacity: .4; cursor: not-allowed; }

.r-verify { font-size: .78rem; color: var(--ink-soft); text-decoration: underline; text-underline-offset: 2px; white-space: nowrap; }

/* ---------- Reveal ---------- */
.reveal { opacity: 0; transform: translateY(10px); animation: rise .55s cubic-bezier(.2,.7,.2,1) forwards; animation-delay: var(--d, 0s); }
@keyframes rise { to { opacity: 1; transform: none; } }
@media (prefers-reduced-motion: reduce) {
  .reveal { animation: none; opacity: 1; transform: none; }
  .viewfinder.scanning .scanline { animation: none; }
  .summary { animation: none; }
}