:root {
  --bg: #f6f7f9; --surface: #ffffff; --text: #1b2430; --muted: #566274; --border: #d5dbe3;
  --accent: #0b5cad; --accent-text: #ffffff; --ok: #1a7f37; --warn-bg: #fff4d6; --warn-text: #6b4a00;
  --err-bg: #fde8e8; --err-text: #8a1c1c; --focus: #1a73e8;
}
:root[data-theme="dark"] {
  --bg: #0f141a; --surface: #182029; --text: #e6ebf1; --muted: #9aa7b8; --border: #2e3946;
  --accent: #5aa9f5; --accent-text: #08121d; --ok: #4cc26a; --warn-bg: #3a2f10; --warn-text: #f2d48a;
  --err-bg: #3d1a1a; --err-text: #ffb4b4; --focus: #8ab4f8;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #0f141a; --surface: #182029; --text: #e6ebf1; --muted: #9aa7b8; --border: #2e3946;
    --accent: #5aa9f5; --accent-text: #08121d; --ok: #4cc26a; --warn-bg: #3a2f10; --warn-text: #f2d48a;
    --err-bg: #3d1a1a; --err-text: #ffb4b4; --focus: #8ab4f8;
  }
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--text); font: 16px/1.5 system-ui, "Segoe UI", Roboto, sans-serif; }
main { max-width: 56rem; margin: 0 auto; padding: 1.5rem 1rem 4rem; }
header { display: flex; gap: 1rem; align-items: flex-start; justify-content: space-between; }
h1 { font-size: 1.5rem; margin: 0 0 .25rem; }
h2 { font-size: 1.1rem; margin: 0 0 .5rem; }
.lead { margin: 0; color: var(--muted); }
.notice { margin: 1rem 0; padding: .75rem 1rem; border: 1px solid var(--border); border-left: 4px solid var(--accent); border-radius: 6px; background: var(--surface); }
button, .btn { font: inherit; cursor: pointer; border-radius: 6px; border: 1px solid var(--border); background: var(--surface); color: var(--text); padding: .5rem .9rem; }
button.primary { background: var(--accent); border-color: var(--accent); color: var(--accent-text); font-weight: 600; }
button.danger { border-color: var(--err-text); color: var(--err-text); }
button:disabled { opacity: .55; cursor: default; }
input[type=text], input[type=password], input[type=number] { font: inherit; padding: .5rem .6rem; border: 1px solid var(--border); border-radius: 6px; background: var(--bg); color: var(--text); min-width: 0; }
label { display: block; font-size: .85rem; color: var(--muted); margin-bottom: .2rem; }
:focus-visible { outline: 3px solid var(--focus); outline-offset: 2px; }
.drop { display: block; border: 2px dashed var(--border); border-radius: 10px; background: var(--surface); padding: 2rem 1rem; text-align: center; transition: border-color .15s, background .15s; }
.drop.over { border-color: var(--accent); background: color-mix(in srgb, var(--accent) 8%, var(--surface)); }
.drop p { margin: .25rem 0; }
.hint { color: var(--muted); font-size: .9rem; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.toolbar { display: flex; gap: .5rem; flex-wrap: wrap; margin: 1rem 0; align-items: center; }
.status { color: var(--muted); }
ul.results { list-style: none; margin: 0; padding: 0; display: grid; gap: 1rem; }
.card { background: var(--surface); border: 1px solid var(--border); border-radius: 10px; padding: 1rem; }
.card.error { border-color: var(--err-text); }
.card.paid { border-color: var(--ok); }
.card h2 { overflow-wrap: anywhere; margin: 0; }
.card .sub { color: var(--muted); margin: .1rem 0 .75rem; overflow-wrap: anywhere; }
.err { background: var(--err-bg); color: var(--err-text); padding: .6rem .8rem; border-radius: 6px; margin: .5rem 0 0; }
.badge { display: inline-block; padding: .1rem .55rem; border-radius: 999px; font-size: .8rem; font-weight: 600; border: 1px solid var(--border); }
.badge.paid { color: var(--ok); border-color: var(--ok); }
.badge.pending { color: var(--warn-text); background: var(--warn-bg); border-color: transparent; }
dl.facts { display: grid; grid-template-columns: repeat(auto-fit, minmax(9.5rem, 1fr)); gap: .6rem 1rem; margin: 0 0 .75rem; }
dl.facts div { min-width: 0; }
dt { color: var(--muted); font-size: .8rem; }
dd { margin: 0; font-variant-numeric: tabular-nums; font-weight: 600; overflow-wrap: anywhere; }
.warns { background: var(--warn-bg); color: var(--warn-text); border-radius: 6px; padding: .6rem .8rem .6rem 1.6rem; margin: 0 0 .75rem; }
.warns li + li { margin-top: .35rem; }
.actions { display: flex; gap: .5rem; flex-wrap: wrap; align-items: center; }
.pay { margin-top: .75rem; padding-top: .75rem; border-top: 1px solid var(--border); display: grid; gap: .6rem; }
.pay .row { display: flex; gap: .5rem; flex-wrap: wrap; align-items: end; }
.pay .row > div { flex: 1 1 12rem; }
.pay input { width: 100%; }
.qr { display: flex; gap: 1rem; flex-wrap: wrap; align-items: flex-start; }
.qr img { width: 11rem; height: 11rem; background: #fff; padding: .4rem; border-radius: 6px; image-rendering: pixelated; }
.qr .copia { flex: 1 1 14rem; min-width: 0; }
.qr textarea { width: 100%; height: 6rem; font: .75rem/1.3 ui-monospace, Consolas, monospace; background: var(--bg); color: var(--text); border: 1px solid var(--border); border-radius: 6px; padding: .4rem; }
details { margin-top: .75rem; }
summary { cursor: pointer; padding: .25rem 0; }
pre.xml { max-height: 24rem; overflow: auto; background: var(--bg); border: 1px solid var(--border); border-radius: 6px; padding: .75rem; font: .8rem/1.4 ui-monospace, Consolas, monospace; tab-size: 2; margin: .5rem 0 0; }
footer { margin-top: 2rem; color: var(--muted); font-size: .85rem; }
/* admin */
.panel { background: var(--surface); border: 1px solid var(--border); border-radius: 10px; padding: 1rem; margin-bottom: 1rem; }
.grid { display: grid; gap: 1rem; grid-template-columns: repeat(auto-fit, minmax(14rem, 1fr)); }
.stat { font-size: 1.4rem; font-weight: 700; font-variant-numeric: tabular-nums; }
.tablewrap { overflow-x: auto; }
table { border-collapse: collapse; width: 100%; font-size: .9rem; }
th, td { text-align: left; padding: .4rem .5rem; border-bottom: 1px solid var(--border); white-space: nowrap; }
.ok { color: var(--ok); }
@media (max-width: 30rem) { header { flex-direction: column; } }
.w100 { width: 100%; }
.w6 { width: 6rem; }
label.inl { display: inline; }
[hidden] { display: none !important; }