:root {
	--bg: #f6f3ee;
	--card: #ffffff;
	--ink: #1d1a16;
	--muted: #6f675d;
	--line: #e6e0d6;
	--brand: #c2410c;
	--brand-ink: #ffffff;
	--good: #15803d;
	--good-bg: #dcfce7;
	--bad: #b91c1c;
	--bad-bg: #fee2e2;
	--warn-bg: #fef3c7;
	--radius: 14px;
	color-scheme: light dark;
}
@media (prefers-color-scheme: dark) {
	:root {
		--bg: #161412;
		--card: #221f1c;
		--ink: #f3efe9;
		--muted: #a89f94;
		--line: #37322c;
		--brand: #f97316;
		--brand-ink: #1b0f05;
		--good: #4ade80;
		--good-bg: #12301d;
		--bad: #f87171;
		--bad-bg: #3a1616;
		--warn-bg: #3a2f10;
	}
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
	margin: 0; background: var(--bg); color: var(--ink);
	font: 16px/1.45 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
	-webkit-tap-highlight-color: transparent;
}
a { color: var(--brand); }
.wrap { max-width: 560px; margin: 0 auto; padding: 0 16px 48px; }
.wrap.wide { max-width: 1100px; }
header.top {
	display: flex; align-items: center; justify-content: space-between; gap: 12px;
	padding: 14px 0; margin-bottom: 4px;
}
header.top .brand { font-weight: 800; font-size: 18px; color: var(--ink); text-decoration: none; letter-spacing: -0.01em; }
header.top nav { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; justify-content: flex-end; }
header.top nav a, header.top nav button { font-size: 14px; }
h1 { font-size: 24px; margin: 8px 0 12px; letter-spacing: -0.02em; }
h2 { font-size: 18px; margin: 28px 0 10px; }
h3 { font-size: 16px; margin: 0 0 8px; }
.muted { color: var(--muted); }
.small { font-size: 13px; }
.mono { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; }
.card {
	background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
	padding: 16px; margin: 12px 0;
}
.balance-card { text-align: center; padding: 22px 16px; }
.balance-card .label { color: var(--muted); font-size: 14px; }
.balance-card .amt { font-size: 44px; font-weight: 800; letter-spacing: -0.03em; margin: 2px 0 4px; }
.stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(130px, 1fr)); gap: 10px; }
.stat { background: var(--card); border: 1px solid var(--line); border-radius: 12px; padding: 12px; }
.stat .k { color: var(--muted); font-size: 13px; }
.stat .v { font-size: 20px; font-weight: 700; }
.stat.hi { border-color: var(--brand); }

label { display: block; font-size: 14px; font-weight: 600; margin: 12px 0 4px; }
input, select, textarea {
	width: 100%; font: inherit; font-size: 17px; padding: 12px; border-radius: 10px;
	border: 1px solid var(--line); background: var(--bg); color: var(--ink);
}
input:focus, select:focus { outline: 2px solid var(--brand); outline-offset: 1px; }
input.big { font-size: 34px; font-weight: 700; text-align: center; padding: 14px; }
.row { display: flex; gap: 10px; }
.row > * { flex: 1; min-width: 0; }
button, .btn {
	display: inline-flex; align-items: center; justify-content: center; gap: 8px;
	font: inherit; font-weight: 700; font-size: 16px; padding: 12px 16px; border-radius: 10px;
	border: 1px solid var(--line); background: var(--card); color: var(--ink); cursor: pointer;
	text-decoration: none; min-height: 44px;
}
button.primary, .btn.primary { background: var(--brand); color: var(--brand-ink); border-color: var(--brand); }
button.block, .btn.block { width: 100%; margin-top: 14px; }
button.huge, .btn.huge { font-size: 20px; padding: 18px; }
button.link { background: none; border: none; color: var(--brand); padding: 0; min-height: 0; font-weight: 600; font-size: inherit; }
button.danger { color: var(--bad); }
button.sm { font-size: 13px; padding: 6px 10px; min-height: 32px; }
button:disabled { opacity: .55; cursor: default; }
.quick { display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px; margin-top: 10px; }
.quick button { padding: 10px 0; }

.flash { padding: 12px 14px; border-radius: 10px; margin: 10px 0; font-weight: 600; }
.flash.ok { background: var(--good-bg); color: var(--good); }
.flash.err { background: var(--bad-bg); color: var(--bad); }
.flash.warn { background: var(--warn-bg); }

ul.txns { list-style: none; margin: 0; padding: 0; }
ul.txns li { display: flex; justify-content: space-between; align-items: center; gap: 10px; padding: 11px 0; border-bottom: 1px solid var(--line); }
ul.txns li:last-child { border-bottom: none; }
ul.txns .what { min-width: 0; }
ul.txns .what b { display: block; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
ul.txns .amt { font-weight: 700; white-space: nowrap; text-align: right; }
.plus { color: var(--good); }
.minus { color: var(--ink); }
.struck { text-decoration: line-through; opacity: .6; }
.tag { display: inline-block; font-size: 11px; font-weight: 700; padding: 2px 6px; border-radius: 6px; background: var(--line); color: var(--muted); vertical-align: middle; }
.tag.good { background: var(--good-bg); color: var(--good); }
.tag.bad { background: var(--bad-bg); color: var(--bad); }

table { width: 100%; border-collapse: collapse; font-size: 14px; }
th, td { text-align: left; padding: 8px 6px; border-bottom: 1px solid var(--line); vertical-align: top; }
th { font-size: 12px; text-transform: uppercase; letter-spacing: .04em; color: var(--muted); }
td.num, th.num { text-align: right; white-space: nowrap; font-variant-numeric: tabular-nums; }
tfoot td { font-weight: 700; border-top: 2px solid var(--line); }
.scroll-x { overflow-x: auto; -webkit-overflow-scrolling: touch; }

details > summary { cursor: pointer; font-weight: 700; padding: 4px 0; }
.grid2 { display: grid; grid-template-columns: 1fr; gap: 12px; }
@media (min-width: 860px) { .grid2 { grid-template-columns: 1fr 1fr; } }

/* QR + scanner */
.qr { text-align: center; }
.qr img { width: 100%; max-width: 340px; image-rendering: pixelated; background: #fff; border-radius: 12px; padding: 8px; }
.code-big { font: 800 30px/1 ui-monospace, Menlo, monospace; letter-spacing: .18em; margin: 6px 0; }
#scanner { position: fixed; inset: 0; background: #000; z-index: 50; display: none; flex-direction: column; }
#scanner.on { display: flex; }
#scanner video { flex: 1; width: 100%; object-fit: cover; min-height: 0; }
#scanner .bar { padding: 16px; display: flex; gap: 10px; background: #000; color: #fff; align-items: center; }
#scanner .frame { position: absolute; top: 50%; left: 50%; width: 68vmin; height: 68vmin; transform: translate(-50%, -60%); border: 3px solid rgba(255,255,255,.85); border-radius: 18px; box-shadow: 0 0 0 9999px rgba(0,0,0,.35); pointer-events: none; }

/* Payment success — animated so a screenshot can't pass as a live payment */
.success {
	text-align: center; padding: 26px 16px; border-radius: var(--radius);
	background: var(--good-bg); color: var(--good); border: 2px solid var(--good);
	animation: glow 1.6s ease-in-out infinite;
}
.success .tick { width: 84px; height: 84px; border-radius: 50%; background: var(--good); color: var(--good-bg); font-size: 52px; line-height: 84px; margin: 0 auto 10px; animation: pop .4s ease-out; }
.success .amt { font-size: 46px; font-weight: 800; letter-spacing: -.02em; }
.success .live { font: 700 22px ui-monospace, Menlo, monospace; margin-top: 8px; }
@keyframes glow { 50% { box-shadow: 0 0 0 10px transparent, 0 0 32px var(--good); } }
@keyframes pop { from { transform: scale(.3); } }
.flashbox { animation: flashin 1.2s ease-out; }
@keyframes flashin { from { background: var(--good-bg); } }

/* Big "received" banner on the stall screen */
#received { position: fixed; left: 12px; right: 12px; top: 12px; z-index: 40; display: none; }
#received.on { display: block; }

@media print { .noprint { display: none !important; } }