/* LF look: gold + ink, IBM Plex, square chips (one radius for all buttons/chips). */
:root {
  --gold: #F5C400;
  --gold-ink: #111;
  --accent-text: #8A5A0A;
  --bg: #F5F5F6;
  --panel: #FFFFFF;
  --line: #DADADF;
  --ink: #141414;
  --muted: #5E5E66;
  --ok: #1E7F3A;
  --warn: #9A5B00;
  --bad: #B3261E;
  --soft-gold: #FFF4C2;
  --r-chip: 4px;
  --r-card: 14px;
  --shadow: 0 1px 2px rgb(0 0 0 / .06);
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #050505; --panel: #141414; --line: #2A2A2A; --ink: #F2F2F2; --muted: #A0A0A8;
    --accent-text: #F5C400; --soft-gold: #2A2306; --ok: #4CC36E; --warn: #F0B04A; --bad: #FF6B60;
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --bg: #050505; --panel: #141414; --line: #2A2A2A; --ink: #F2F2F2; --muted: #A0A0A8;
  --accent-text: #F5C400; --soft-gold: #2A2306; --ok: #4CC36E; --warn: #F0B04A; --bad: #FF6B60;
  color-scheme: dark;
}

* { box-sizing: border-box; }
html, body { margin: 0; }
body {
  background: var(--bg); color: var(--ink);
  font: 16px/1.45 var(--font, "IBM Plex Sans"), system-ui, -apple-system, "Segoe UI", sans-serif;
  -webkit-text-size-adjust: 100%;
  min-height: 100dvh;
}
.mono { font-family: "IBM Plex Mono", ui-monospace, monospace; }

.topbar {
  position: sticky; top: 0; z-index: 10;
  display: flex; align-items: center; gap: 10px;
  padding: calc(10px + env(safe-area-inset-top)) 16px 10px;
  background: var(--panel); border-bottom: 3px solid var(--gold);
}
.brand { display: flex; align-items: center; gap: 10px; font-weight: 600; text-decoration: none; color: inherit; }
.brand .mark { width: 28px; height: 28px; }
.brand small { display: block; font-weight: 400; color: var(--muted); font-size: 12px; line-height: 1.1; }
.topbar .spacer { flex: 1; }
.icon-btn {
  border: 1px solid var(--line); background: transparent; color: var(--ink);
  border-radius: var(--r-chip); min-width: 40px; height: 40px; font-size: 18px; cursor: pointer;
}

main { max-width: 720px; margin: 0 auto; padding: 16px 16px calc(110px + env(safe-area-inset-bottom)); }
[hidden] { display: none !important; }

.card { background: var(--panel); border: 1px solid var(--line); border-radius: var(--r-card); padding: 16px; box-shadow: var(--shadow); margin-bottom: 14px; }
.card h2 { font-size: 15px; margin: 0 0 12px; letter-spacing: .02em; text-transform: uppercase; color: var(--accent-text); }

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  min-height: 48px; padding: 0 18px; border-radius: var(--r-chip);
  border: 1px solid var(--line); background: var(--panel); color: var(--ink);
  font: inherit; font-weight: 600; cursor: pointer; text-decoration: none;
}
.btn.primary { background: var(--gold); border-color: var(--gold); color: var(--gold-ink); }
.btn.ghost { background: transparent; }
.btn.danger { color: var(--bad); }
.btn.block { width: 100%; }
.btn.big { min-height: 64px; font-size: 18px; }
.btn:disabled { opacity: .55; cursor: default; }
.btn:focus-visible, .icon-btn:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible { outline: 2px solid var(--gold); outline-offset: 2px; }

.hero { text-align: center; padding: 28px 16px 20px; }
.hero h1 { font-size: 22px; margin: 0 0 6px; }
.hero p { color: var(--muted); margin: 0 0 22px; }
.stack { display: grid; gap: 10px; }

.banner { border-radius: var(--r-chip); padding: 10px 12px; margin-bottom: 14px; font-size: 14px; border: 1px solid var(--line); background: var(--panel); }
.banner.warn { border-color: var(--warn); color: var(--warn); }
.banner.bad { border-color: var(--bad); color: var(--bad); }
.banner.ok { border-color: var(--ok); color: var(--ok); }
.banner.info { background: var(--soft-gold); border-color: var(--gold); }

.photo { position: relative; border-radius: var(--r-card); overflow: hidden; background: #000; margin-bottom: 14px; border: 1px solid var(--line); }
.photo img { display: block; width: 100%; max-height: 46dvh; object-fit: contain; }
.photo .zoom { position: absolute; right: 8px; bottom: 8px; background: var(--panel); }
.photo.full img { max-height: none; }

.reading { display: flex; align-items: center; gap: 12px; padding: 18px 16px; }
.spinner { width: 22px; height: 22px; border: 3px solid var(--line); border-top-color: var(--gold); border-radius: 50%; animation: spin 0.8s linear infinite; flex: none; }
@keyframes spin { to { transform: rotate(360deg); } }

.grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.grid .wide { grid-column: 1 / -1; }
@media (max-width: 420px) { .grid { grid-template-columns: 1fr; } }

label.field { display: grid; gap: 4px; font-size: 13px; color: var(--muted); }
input, select, textarea {
  width: 100%; font: inherit; font-size: 16px; color: var(--ink);
  background: var(--bg); border: 1px solid var(--line); border-radius: var(--r-chip);
  padding: 10px 12px; min-height: 44px;
}
textarea { min-height: 70px; resize: vertical; }
input.num { text-align: right; font-family: "IBM Plex Mono", ui-monospace, monospace; }
input.flag { border-color: var(--warn); }

.rows { display: grid; gap: 10px; }
.row-card { border: 1px solid var(--line); border-radius: 10px; padding: 10px; display: grid; gap: 8px; background: var(--bg); }
.row-card .row-head { display: flex; align-items: center; gap: 8px; }
.row-card .row-head input { flex: 1; }
.row-card .cols { display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px; }
.row-card .cols.three { grid-template-columns: 1.2fr .8fr 1fr; }
@media (max-width: 420px) { .row-card .cols { grid-template-columns: 1fr 1fr; } }
.x-btn { border: 1px solid var(--line); background: transparent; color: var(--muted); border-radius: var(--r-chip); width: 40px; height: 40px; font-size: 18px; cursor: pointer; flex: none; }

.check { display: flex; justify-content: space-between; font-size: 14px; color: var(--muted); padding-top: 8px; }
.check.bad { color: var(--warn); }

.actionbar {
  position: fixed; left: 0; right: 0; bottom: 0; z-index: 10;
  background: var(--panel); border-top: 1px solid var(--line);
  padding: 10px 16px calc(10px + env(safe-area-inset-bottom));
}
.actionbar .inner { max-width: 720px; margin: 0 auto; display: flex; gap: 10px; }
.actionbar .inner .btn.primary { flex: 1; }

.done { text-align: center; padding: 30px 16px; }
.done .tick { width: 72px; height: 72px; border-radius: 50%; background: var(--gold); color: var(--gold-ink); display: grid; place-items: center; font-size: 38px; margin: 0 auto 14px; }
.done .tick.pending { background: var(--soft-gold); color: var(--warn); }

.list { list-style: none; margin: 0; padding: 0; }
.list li { display: flex; justify-content: space-between; gap: 10px; padding: 10px 0; border-bottom: 1px solid var(--line); font-size: 14px; }
.list li:last-child { border-bottom: 0; }
.list .meta { color: var(--muted); font-size: 12px; }
.chip { display: inline-block; padding: 2px 8px; border-radius: var(--r-chip); font-size: 12px; font-weight: 600; border: 1px solid var(--line); white-space: nowrap; }
.chip.sent { color: var(--ok); border-color: var(--ok); }
.chip.failed { color: var(--bad); border-color: var(--bad); }
.chip.pending { color: var(--warn); border-color: var(--warn); }

dialog { border: 1px solid var(--line); border-radius: var(--r-card); background: var(--panel); color: var(--ink); width: min(420px, calc(100vw - 32px)); padding: 20px; }
dialog::backdrop { background: rgb(0 0 0 / .5); }
dialog h3 { margin: 0 0 10px; }
dialog .stack { margin-top: 14px; }

.color-pair { display: flex; gap: 8px; }
.color-pair input[type="color"] { width: 52px; flex: none; padding: 3px; cursor: pointer; }
a.chip { color: var(--ink); text-decoration: none; }
.muted { color: var(--muted); }
.small { font-size: 13px; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }