:root {
  color-scheme: light;
  --bg: #f4f6f9; --card: #fff; --text: #1d2433; --muted: #6b7385; --line: #dfe3ea;
  --brand: #1f3864; --brand-2: #2f5597; --link: #2f5597; --topbar: #1f3864; --primary-hover: #1f3864;
  --ok: #1e7b45; --ok-bg: #e3f4ea; --warn: #8a5a00; --warn-bg: #fff3d6;
  --err: #b42318; --err-bg: #fde8e7; --info-bg: #e6eefb; --radius: 8px;
  --input-bg: #fff; --input-border: #c8ceda; --readonly-bg: #f1f3f6; --head-bg: #f0f3f8; --hover: #f7f9fc;
  --soft: #eef1f5; --tab-bg: #f4f6fa; --pill-bg: #e8ebf1; --pill-text: #3b4458; --missing-bg: #fff7f6;
  --limbo-bg: #ece6f7; --limbo-text: #5b3c99; --obs-bg: #eee; --obs-text: #777; --focus: #9db8ea;
  --danger-border: #f0b8b3; --conflict: #f0c36d; --shadow: rgba(0,0,0,.08);
}
/* Mode fosc: segons el dispositiu, o forçat amb el botó (data-theme a <html>) */
@media (prefers-color-scheme: dark) {
  :root:not([data-theme=light]) {
    color-scheme: dark;
    --bg: #0f141c; --card: #171e29; --text: #e3e8f0; --muted: #94a0b4; --line: #2a3442;
    --brand: #8fb0ec; --brand-2: #3b64ad; --link: #8fb0ec; --topbar: #111c30; --primary-hover: #4a76c4;
    --ok: #5fd08f; --ok-bg: #12301f; --warn: #f0c36d; --warn-bg: #362a0e;
    --err: #ff8a80; --err-bg: #3b1513; --info-bg: #182640;
    --input-bg: #0f141c; --input-border: #364254; --readonly-bg: #1b2330; --head-bg: #1d2633; --hover: #1c2430;
    --soft: #222c3a; --tab-bg: #1d2633; --pill-bg: #263142; --pill-text: #c9d3e3; --missing-bg: #2a1716;
    --limbo-bg: #2b2340; --limbo-text: #c4b0f0; --obs-bg: #2a2f37; --obs-text: #9aa3af; --focus: #4d6fb3;
    --danger-border: #6b2a25; --conflict: #a67c2a; --shadow: rgba(0,0,0,.45);
  }
}
:root[data-theme=dark] {
  color-scheme: dark;
  --bg: #0f141c; --card: #171e29; --text: #e3e8f0; --muted: #94a0b4; --line: #2a3442;
  --brand: #8fb0ec; --brand-2: #3b64ad; --link: #8fb0ec; --topbar: #111c30; --primary-hover: #4a76c4;
  --ok: #5fd08f; --ok-bg: #12301f; --warn: #f0c36d; --warn-bg: #362a0e;
  --err: #ff8a80; --err-bg: #3b1513; --info-bg: #182640;
  --input-bg: #0f141c; --input-border: #364254; --readonly-bg: #1b2330; --head-bg: #1d2633; --hover: #1c2430;
  --soft: #222c3a; --tab-bg: #1d2633; --pill-bg: #263142; --pill-text: #c9d3e3; --missing-bg: #2a1716;
  --limbo-bg: #2b2340; --limbo-text: #c4b0f0; --obs-bg: #2a2f37; --obs-text: #9aa3af; --focus: #4d6fb3;
  --danger-border: #6b2a25; --conflict: #a67c2a; --shadow: rgba(0,0,0,.45);
}
* { box-sizing: border-box; }
body { margin: 0; font: 14px/1.45 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; background: var(--bg); color: var(--text); }
a { color: var(--link); text-decoration: none; }
a:hover { text-decoration: underline; }
h1 { font-size: 1.5rem; margin: .2rem 0 1rem; }
h1 small { font-weight: normal; }
h2 { font-size: 1.1rem; margin: .2rem 0 .8rem; }
.muted { color: var(--muted); }
.small, small { font-size: .85em; }
.nowrap { white-space: nowrap; }
.hint { color: var(--muted); font-size: .9em; }
.hint.warn, .warn-text { color: var(--warn); }
code { background: var(--soft); padding: 1px 4px; border-radius: 4px; }

/* capçalera */
.topbar { background: var(--topbar); color: #fff; display: flex; align-items: center; gap: 1rem; padding: 0 1rem; position: sticky; top: 0; z-index: 20; }
.brand { color: #fff; font-size: 1.05rem; padding: .8rem 0; white-space: nowrap; }
.topbar nav { display: flex; align-items: center; gap: .2rem; flex: 1; flex-wrap: wrap; }
.topbar nav a, .topbar nav .link { color: #dbe4f5; padding: .55rem .6rem; border-radius: 6px; }
.topbar nav a:hover, .topbar nav .link:hover { background: rgba(255,255,255,.12); color: #fff; text-decoration: none; }
.topbar nav .muted { color: #b7c3dc; }
.spacer { flex: 1; }
.menu-btn { display: none; background: none; border: 0; color: #fff; font-size: 1.5rem; margin-left: auto; cursor: pointer; }

main { padding: 1.2rem; max-width: 1200px; margin: 0 auto; }
main.wide { max-width: none; }
main.narrow { max-width: 560px; }

.card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 1rem 1.2rem; margin-bottom: 1rem; }
.card.auth { margin-top: 8vh; }
.cols { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; align-items: start; }
.head-row { display: flex; justify-content: space-between; align-items: flex-start; gap: 1rem; flex-wrap: wrap; }
.sub { font-size: 1.05rem; margin: -.6rem 0 .4rem; color: var(--muted); }

/* formularis */
label { display: block; margin-bottom: .7rem; font-weight: 500; font-size: .92em; }
input, select, textarea { font: inherit; display: block; width: 100%; margin-top: .25rem; padding: .5rem .6rem; border: 1px solid var(--input-border); border-radius: 6px; background: var(--input-bg); color: var(--text); }
input:focus, select:focus, textarea:focus { outline: 2px solid var(--focus); border-color: var(--brand-2); }
input[readonly] { background: var(--readonly-bg); }
input[type=checkbox], input[type=radio] { display: inline-block; width: auto; margin: 0 .35rem 0 0; }
input[type=color] { width: 3rem; padding: 2px; height: 2.2rem; }
label.chk { display: flex; align-items: flex-start; gap: .2rem; font-weight: normal; }
label.chk input { margin-top: .2rem; }
label.indent { margin-left: 1.5rem; }
fieldset { border: 1px solid var(--line); border-radius: var(--radius); margin: 0 0 1rem; padding: .6rem 1rem .2rem; }
legend { font-weight: 600; padding: 0 .3rem; color: var(--brand); }
.grid3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0 1rem; }
.grid4 { display: grid; grid-template-columns: repeat(5, 1fr); gap: 0 .8rem; }
.grid4 small label { margin: 0; }
form.inline { display: inline; }
.row-form { display: flex; gap: .5rem; align-items: center; margin-bottom: .8rem; }
.row-form input { margin: 0; width: auto; }
.grow { flex: 1; }

.btn { display: inline-block; font: inherit; padding: .5rem .9rem; border-radius: 6px; border: 1px solid var(--input-border); background: var(--card); color: var(--text); cursor: pointer; white-space: nowrap; }
.btn:hover { background: var(--head-bg); text-decoration: none; }
.btn.primary { background: var(--brand-2); border-color: var(--brand-2); color: #fff; }
.btn.primary:hover { background: var(--primary-hover); }
.btn.danger { color: var(--err); border-color: var(--danger-border); }
.btn.danger:hover { background: var(--err-bg); }
.btn.wide { width: 100%; }
.link { background: none; border: 0; padding: 0; color: var(--link); cursor: pointer; font: inherit; }
.actions { display: flex; gap: .5rem; flex-wrap: wrap; align-items: center; margin-top: .6rem; }

.flash { padding: .7rem 1rem; border-radius: var(--radius); margin-bottom: .8rem; background: var(--info-bg); }
.flash.ok { background: var(--ok-bg); color: var(--ok); }
.flash.warn { background: var(--warn-bg); color: var(--warn); }
.flash.error { background: var(--err-bg); color: var(--err); }

/* filtres i taules */
.filters { display: flex; flex-wrap: wrap; gap: .5rem; align-items: center; background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: .7rem; margin-bottom: .6rem; }
.filters input, .filters select { width: auto; margin: 0; max-width: 200px; }
.filters input.grow { max-width: none; min-width: 220px; }
.filters label { margin: 0; display: flex; align-items: center; gap: .3rem; font-weight: normal; }
.bigsearch { display: flex; gap: .5rem; margin-bottom: 1rem; }
.bigsearch input { margin: 0; font-size: 1.1rem; padding: .7rem; }
.table-wrap { overflow-x: auto; background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); }
table.items { width: 100%; border-collapse: collapse; }
table.items th, table.items td { padding: .45rem .6rem; border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; }
table.items th { background: var(--head-bg); font-weight: 600; font-size: .9em; position: sticky; top: 0; white-space: nowrap; }
table.items th a { color: var(--text); }
table.items tr:hover td { background: var(--hover); }
table.items tr.tinted td:first-child { box-shadow: inset 4px 0 0 var(--row); }
table.items td.code { font-weight: 600; white-space: nowrap; }
table.items td.c, table.items th.c { width: 1%; text-align: center; }
table.items .empty { text-align: center; color: var(--muted); padding: 2rem; }
table.items tr.missing td { background: var(--missing-bg); }
table.items tr.dup td { opacity: .7; }
table.items tr.inactive td { color: var(--muted); }
table.small td, table.small th { font-size: .85em; padding: .3rem .4rem; }
.pager { display: flex; gap: 1rem; justify-content: center; align-items: center; padding: .8rem; }

.pill { display: inline-block; font-size: .78em; padding: 1px 8px; border-radius: 99px; background: var(--pill-bg); color: var(--pill-text); font-weight: 500; white-space: nowrap; }
.pill.warn, .st-pendent { background: var(--warn-bg); color: var(--warn); }
.st-aplicat, .st-aprovat { background: var(--ok-bg); color: var(--ok); }
.st-rebutjat { background: var(--err-bg); color: var(--err); }
.st-obsolet { background: var(--obs-bg); color: var(--obs-text); }
.sec-baixa { background: var(--err-bg); color: var(--err); }
.sec-limbo { background: var(--limbo-bg); color: var(--limbo-text); }
.estat { display: inline-flex; align-items: center; gap: .35rem; font-size: .82em; white-space: nowrap; }
.estat::before { content: ""; width: .8em; height: .8em; border-radius: 3px; background: var(--c); border: 1px solid rgba(0,0,0,.15); }

.stats { display: flex; gap: .8rem; flex-wrap: wrap; margin-bottom: 1rem; }
.stat { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: .8rem 1.1rem; min-width: 150px; color: var(--muted); }
.stat b { display: block; font-size: 1.6rem; color: var(--text); }
.stat.warn { background: var(--warn-bg); }
.estat-list, .activity { list-style: none; padding: 0; margin: 0; }
.estat-list li, .activity li { padding: .35rem 0; border-bottom: 1px solid var(--line); }
.estat-list a { display: flex; justify-content: space-between; color: var(--text); }

dl.fields { display: grid; grid-template-columns: max-content 1fr; gap: .35rem 1rem; margin: 0; }
dl.fields dt { color: var(--muted); }
dl.fields dd { margin: 0; font-weight: 500; word-break: break-word; }

.hist { border-bottom: 1px solid var(--line); padding: .6rem 0; }
.card.hist { padding: .8rem 1rem; }
.card.hist.conflict { border-color: var(--conflict); }
.hist-head { display: flex; gap: .5rem; align-items: baseline; flex-wrap: wrap; margin-bottom: .3rem; }
table.diff { border-collapse: collapse; font-size: .9em; }
table.diff th { text-align: left; color: var(--muted); font-weight: normal; padding: 1px 10px 1px 0; }
table.diff .old { color: var(--err); text-decoration: line-through; text-decoration-color: rgba(180,35,24,.4); }
table.diff .new { color: var(--ok); font-weight: 600; }
table.diff .arrow { color: var(--muted); padding: 0 6px; }
.diff-new span { display: inline-block; margin-right: .8rem; font-size: .9em; }
.diff-new em { color: var(--muted); font-style: normal; }
.diff-del { color: var(--err); }
.note { font-size: .88em; color: var(--muted); margin-top: .2rem; }

/* panell d'accions en bloc */
.bulk { position: sticky; bottom: 0; background: var(--card); border: 2px solid var(--brand-2); border-radius: var(--radius); padding: .8rem 1rem; margin-top: 1rem; box-shadow: 0 -6px 20px var(--shadow); z-index: 10; }
.bulk-head { display: flex; gap: 1rem; align-items: center; flex-wrap: wrap; margin-bottom: .6rem; }
.bulk-close { margin-left: auto; background: none; border: 1px solid var(--line); color: var(--muted); border-radius: 6px; width: 2rem; height: 2rem; font-size: 1rem; cursor: pointer; }
.bulk-close:hover { background: var(--head-bg); color: var(--text); }
.tabs { display: flex; gap: .3rem; flex-wrap: wrap; }
.tab { border: 1px solid var(--line); background: var(--tab-bg); padding: .3rem .7rem; border-radius: 6px; cursor: pointer; font: inherit; color: var(--text); }
.tab.active { background: var(--brand-2); color: #fff; border-color: var(--brand-2); }
.pagetabs { margin-bottom: 1rem; }
.tabpane select, .tabpane > input { display: inline-block; width: auto; margin-right: .5rem; }
.note-input { margin-top: .6rem; }
.toolbar { display: flex; gap: .5rem; align-items: center; background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: .6rem; margin-bottom: 1rem; }
.toolbar input { margin: 0; }
.toolbar label { margin: 0; }
.sticky { position: sticky; top: 52px; z-index: 5; }

/* escàner */
#reader { width: 100%; max-width: 420px; margin: 0 auto; }
#reader video { border-radius: var(--radius); }
.scan-ctrl { display: flex; gap: .5rem; justify-content: center; margin: .8rem 0; }
.scan-ctrl .btn { font-size: 1.1rem; padding: .8rem 1.4rem; }
.manual { display: flex; gap: .5rem; }
.manual input { margin: 0; }
.scanlog { list-style: none; padding: 0; margin: 0; }
.scanlog li { padding: .5rem .6rem; border-bottom: 1px solid var(--line); }
.scanlog li.ok { border-left: 4px solid var(--ok); }
.scanlog li.missing { border-left: 4px solid var(--err); background: var(--missing-bg); }
.scanlog small { color: var(--muted); }
.prose ul { padding-left: 1.3rem; }
.prose h2 { margin-top: 1.3rem; }
.theme-btn { background: none; border: 0; color: #dbe4f5; font-size: 1.1rem; cursor: pointer; padding: .4rem .5rem; border-radius: 6px; }
.theme-btn:hover { background: rgba(255,255,255,.12); }
.theme-btn.floating { position: fixed; top: .8rem; right: .8rem; color: var(--text); background: var(--card); border: 1px solid var(--line); }
.copybox { display: flex; gap: .5rem; margin-bottom: 1rem; }
.copybox input { margin: 0; }

@media (max-width: 900px) {
  .menu-btn { display: block; }
  .topbar { flex-wrap: wrap; }
  .topbar nav { display: none; flex-basis: 100%; flex-direction: column; align-items: stretch; padding-bottom: .6rem; }
  body.nav-open .topbar nav { display: flex; }
  .cols, .grid3 { grid-template-columns: 1fr; }
  .grid4 { grid-template-columns: 1fr 1fr; }
  main { padding: .8rem; }
  .filters input, .filters select { max-width: none; flex: 1 1 45%; }
  .sticky { top: 0; }
}