:root {
  --bg: #f6f7f8; --surface: #fff; --text: #1d2329; --muted: #5d6873; --line: #dde1e5;
  --accent: #0b5f8a; --accent-text: #fff; --danger: #b3261e; --ok: #1b6e3c; --warn: #8a5a00;
  --radius: 6px; --gap: 1rem;
}
@media (prefers-color-scheme: dark) {
  :root { --bg: #14181c; --surface: #1d2329; --text: #e8ecef; --muted: #9aa5ae; --line: #323a42;
          --accent: #4ba3d1; --accent-text: #0c1114; --danger: #ff8a80; --ok: #6fcf97; --warn: #f2c26b; }
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--text); font: 16px/1.5 system-ui, sans-serif; }
main { max-width: 1760px; margin: 0 auto; padding: var(--gap); }
h1 { font-size: 1.5rem; margin: 0 0 var(--gap); }
h2 { font-size: 1.15rem; margin-top: 0; }
a { color: var(--accent); }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); }
.topbar { display: flex; flex-wrap: wrap; align-items: center; gap: var(--gap); padding: .6rem var(--gap);
          background: var(--surface); border-bottom: 1px solid var(--line); }
.topbar nav { display: flex; gap: var(--gap); flex: 1; }
.topbar nav a { text-decoration: none; padding: .25rem .5rem; border-radius: var(--radius); }
.topbar nav a[aria-current="page"] { background: var(--accent); color: var(--accent-text); }
.topbar form { margin: 0; }
.card { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius);
        padding: var(--gap); margin-bottom: var(--gap); }
.narrow { max-width: 28rem; margin-inline: auto; }
label { display: block; margin-bottom: .75rem; font-weight: 500; }
input, select, textarea { display: block; width: 100%; margin-top: .25rem; padding: .5rem; font: inherit; color: inherit;
                background: var(--bg); border: 1px solid var(--line); border-radius: var(--radius); }
input[aria-invalid="true"] { border-color: var(--danger); }
input[type="checkbox"] { display: inline; width: auto; margin-right: .4rem; }
.topbar select { margin: 0; width: auto; }
button, .button { display: inline-block; padding: .5rem 1rem; font: inherit; cursor: pointer; text-decoration: none;
                  background: var(--accent); color: var(--accent-text); border: 0; border-radius: var(--radius); }
button.link { background: none; color: var(--accent); padding: .25rem; }
.error { color: var(--danger); display: block; font-weight: 500; }
.hint, .muted { color: var(--muted); font-size: .9rem; font-weight: 400; }
.head-row { display: flex; justify-content: space-between; align-items: center; gap: var(--gap); }
.inline-form { display: grid; grid-template-columns: 1fr 2fr auto; gap: var(--gap); align-items: end; }
.inline-form label { margin: 0; }
@media (max-width: 640px) { .inline-form { grid-template-columns: 1fr; } }
table { width: 100%; border-collapse: collapse; font-size: .95rem; }
th, td { text-align: left; padding: .4rem .5rem; border-bottom: 1px solid var(--line); vertical-align: top; }
.num { text-align: right; font-variant-numeric: tabular-nums; }
.results { list-style: none; padding: 0; }
.results li { padding: .25rem 0; }
.badge { display: inline-block; min-width: 5.5rem; padding: 0 .5rem; border-radius: 99px; font-size: .8rem;
         border: 1px solid currentColor; text-align: center; }
.res-stored .badge { color: var(--ok); } .res-duplicate .badge, .res-ignored .badge { color: var(--warn); }
.res-rejected .badge { color: var(--danger); }
.actions { display: flex; gap: var(--gap); align-items: center; }
.pager { display: flex; gap: var(--gap); }
.table-wrap { overflow-x: auto; }

/* --- milestone 2 --- */
main.wide { max-width: none; }
.flash { padding: .5rem .75rem; border-radius: var(--radius); border: 1px solid var(--line); background: var(--surface); }
.flash-ok { border-color: var(--ok); } .flash-error { border-color: var(--danger); color: var(--danger); }
.tabs { display: flex; gap: .5rem; margin-bottom: var(--gap); }
.tabs a { padding: .3rem .8rem; border-radius: var(--radius); text-decoration: none; border: 1px solid var(--line); }
.tabs a[aria-current="page"] { background: var(--accent); color: var(--accent-text); border-color: var(--accent); }
.filters { display: grid; grid-template-columns: repeat(auto-fit, minmax(10rem, 1fr)); gap: .75rem; align-items: end; }
.filters label, .bulk label { margin: 0; font-size: .9rem; }
.bulk { display: flex; flex-wrap: wrap; gap: .75rem; align-items: end; padding: .5rem 0; }
.bulk label { width: 10.5rem; }
button.secondary { background: var(--surface); color: var(--text); border: 1px solid var(--line); }
button.danger { background: var(--danger); color: var(--bg); }
.st { display: inline-block; padding: 0 .5rem; border-radius: 99px; font-size: .8rem; border: 1px solid currentColor; }
.st-pending { color: var(--ok); } .st-incident { color: var(--warn); } .st-exported { color: var(--accent); }
.st-discarded { color: var(--muted); }
.reasons { margin: 0; padding-left: 1.1rem; font-size: .85rem; color: var(--warn); }
ul.reasons.big { font-size: 1rem; }
.cols { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 6fr); gap: var(--gap); align-items: start; }
.viewer iframe, .viewer img { width: 100%; height: 78vh; border: 1px solid var(--line); border-radius: var(--radius); background: #fff; object-fit: contain; }
.fields { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: .5rem .75rem; }
.fields label { margin: 0; font-size: .9rem; }
.lines input { margin: 0; padding: .25rem; font-size: .85rem; min-width: 3.5rem; }
.lines td { padding: .2rem; vertical-align: middle; }
.lines input[type="checkbox"] { min-width: 0; }
.lines .desc { min-width: 14rem; }
.suggest { border: 1px solid var(--line); border-radius: var(--radius); padding: .25rem; margin-top: .25rem; }
.suggest button { display: block; width: 100%; text-align: left; background: none; color: var(--text); padding: .2rem .4rem; }
.suggest button:hover { background: var(--bg); }
details.assign summary { cursor: pointer; color: var(--accent); }
.sr-only-btn { position: absolute; left: -9999px; }
.muted-row td { color: var(--muted); }

/* --- milestone 3: density, numbers, sticky bars, detail layout --- */
:root { --topbar-h: 3.4rem; }
.topbar { position: sticky; top: 0; z-index: 20; height: var(--topbar-h); padding-block: 0; }
.brand-center { text-align: center; margin: 8vh 0 1rem; font-weight: 600; font-size: 1.1rem; color: var(--muted); }
.narrow { margin-top: 0; }
body { font-variant-numeric: normal; }
.num, input.n, .n { text-align: right; font-variant-numeric: tabular-nums; }
.nowrap { white-space: nowrap; }
td.file { max-width: 16rem; overflow-wrap: anywhere; }
table tbody tr:hover { background: color-mix(in srgb, var(--accent) 6%, transparent); }
table tbody tr:has(input[type="checkbox"]:checked) { background: color-mix(in srgb, var(--accent) 14%, transparent); }
th { font-size: .8rem; text-transform: uppercase; letter-spacing: .02em; color: var(--muted); white-space: nowrap; }
/* Filled, high-contrast status badges */
.st { font-weight: 600; padding: .05rem .6rem; border: 0; }
.st-pending { background: var(--ok); color: var(--bg); }
.st-incident { background: var(--warn); color: var(--bg); }
.st-exported { background: var(--accent); color: var(--accent-text); }
.st-discarded { background: var(--muted); color: var(--bg); }
.reasons { list-style: none; padding: 0; color: var(--text); }
.reasons li { border-left: 3px solid var(--warn); padding-left: .4rem; margin: .1rem 0; }
.reasons li.more { border-color: var(--line); color: var(--muted); }
/* Bulk action bar stays visible while scrolling the list */
.bulk-card { padding-top: 0; }
.bulk-bar { position: sticky; top: var(--topbar-h); z-index: 10; background: var(--surface); padding: .6rem 0;
            border-bottom: 1px solid var(--line); align-items: end; }
.selcount { align-self: center; min-width: 8rem; color: var(--muted); }
.filters { grid-template-columns: 2fr 1.4fr 1.4fr 1fr 1fr; }
.filters input, .filters select, .bulk input { padding: .35rem .5rem; }
/* Detail page: viewer left (sticky, tall), data right; lines below (or beside at >=1700px) */
.back { margin: 0 0 .25rem; }
.head-row.tight { margin-bottom: .25rem; }
.head-row h1 { font-size: 1.25rem; margin: 0; overflow-wrap: anywhere; }
.head-row h2 { margin: 0; }
.detail { display: grid; gap: var(--gap); grid-template-columns: minmax(0, 5fr) minmax(0, 6fr);
          grid-template-areas: "viewer top" "lines lines"; align-items: start; align-content: start; }
.detail .viewer { grid-area: viewer; }   /* sticky only in the wide layout (see below): Chrome constrains sticky to the whole grid */
.detail .top { grid-area: top; }
.detail .lines-card { grid-area: lines; }
.viewer iframe, .viewer img { height: calc(100vh - var(--topbar-h) - 3.5rem); min-height: 480px; }
.viewer-link { display: block; font-size: .85rem; margin-top: .25rem; }
@media (min-width: 1700px) {
  .detail { grid-template-columns: minmax(0, 4fr) minmax(0, 7fr); grid-template-areas: "viewer top" "viewer lines"; grid-template-rows: auto 1fr; }
  .detail .viewer { grid-row: 1 / span 2; position: sticky; top: calc(var(--topbar-h) + .5rem); }
}
fieldset.fields { border: 0; padding: 0; margin: 0; grid-template-columns: repeat(4, 1fr); }
@media (max-width: 1100px) { fieldset.fields { grid-template-columns: repeat(2, 1fr); } .filters { grid-template-columns: 1fr 1fr; } }
.incidences { border-color: var(--warn); }
.chips { list-style: none; display: flex; flex-wrap: wrap; gap: .35rem; padding: 0; margin: .4rem 0 0; }
.chips li { background: color-mix(in srgb, var(--warn) 18%, transparent); border: 1px solid var(--warn); border-radius: 99px; padding: .05rem .6rem; font-size: .85rem; }
.sumline { margin: .5rem 0 0; font-size: .9rem; color: var(--muted); }
.diff-ok { color: var(--ok); } .diff-bad { color: var(--danger); }
kbd { font: inherit; font-size: .75rem; opacity: .75; border: 1px solid currentColor; border-radius: 3px; padding: 0 .25rem; margin-left: .25rem; }
input[aria-invalid="true"] { border-color: var(--danger); background: color-mix(in srgb, var(--danger) 10%, var(--bg)); }
.flash ul { margin: .25rem 0 0; padding-left: 1.2rem; }
.lines input { padding: .2rem .3rem; }
.lines .desc { min-width: 12rem; width: 100%; }
.lines td { padding: .15rem .2rem; }
.lines input:focus, .filters input:focus { outline: 2px solid var(--accent); outline-offset: 0; }

.bulk label.wide { width: 18rem; }

/* --- milestone 4: description-first lines table, original-document drawer --- */
.lines table { table-layout: auto; }
.lines td { white-space: nowrap; }
.lines td.c-desc { width: 100%; min-width: 16rem; white-space: normal; }
.lines textarea.desc { width: 100%; margin: 0; padding: .2rem .3rem; font: inherit; font-size: .85rem; line-height: 1.3;
                       min-height: 1.9rem; resize: none; overflow: hidden; }
.lines input.short { max-width: 6rem; }
.drawer { position: fixed; top: var(--topbar-h); right: 0; bottom: 0; width: var(--drawer-w, 38vw); z-index: 15; display: flex;
          flex-direction: column; background: var(--surface); border-left: 1px solid var(--line); box-shadow: -4px 0 12px rgb(0 0 0 / .12); }
.drawer[hidden] { display: none; }
.drawer-head { display: flex; gap: var(--gap); align-items: center; padding: .4rem .75rem; border-bottom: 1px solid var(--line); }
.drawer-head button { margin-left: auto; padding: .25rem .6rem; }
.drawer iframe, .drawer img { flex: 1; width: 100%; border: 0; background: #fff; object-fit: contain; min-height: 0; }
body.drawer-open main { padding-right: calc(var(--drawer-w, 38vw) + 1rem); }
@media (min-width: 1700px) { .only-narrow, .drawer { display: none !important; } body.drawer-open main { padding-right: var(--gap); } }
/* With the drawer open the page shows only data + lines (the original is in the drawer) */
body.drawer-open .detail { grid-template-columns: minmax(0, 1fr); grid-template-areas: "top" "lines"; }
body.drawer-open .detail .viewer { display: none; }
body.drawer-open fieldset.fields { grid-template-columns: repeat(2, 1fr); }

/* --- milestone 5: reading queue --- */
.st-queue { background: transparent; color: var(--accent); border: 1px dashed var(--accent); font-weight: 600; }
.queue-list { list-style: none; padding: 0; margin: 0 0 var(--gap); font-size: .9rem; }
.queue-list li { padding: .15rem 0; }
.readinfo { font-size: .9rem; } .readinfo summary { cursor: pointer; }

.bulk label.vat-all { width: 9rem; }

/* --- milestone 7 --- */
.origin { display: inline-block; margin-left: .35rem; padding: 0 .4rem; font-size: .72rem; color: var(--muted);
          border: 1px solid var(--line); border-radius: 99px; white-space: nowrap; cursor: help; }
.originline { font-size: .9rem; margin: 0 0 var(--gap); overflow-wrap: anywhere; }
/* Drawer: drag handle on its left edge (width saved in localStorage by app.js) */
.drawer-handle { position: absolute; left: -5px; top: 0; bottom: 0; width: 10px; cursor: col-resize; z-index: 2; }
.drawer-handle:hover, .drawer-handle:focus-visible, body.drawer-dragging .drawer-handle { background: color-mix(in srgb, var(--accent) 35%, transparent); outline: none; }
body.drawer-dragging { user-select: none; cursor: col-resize; }
body.drawer-dragging .drawer iframe, body.drawer-dragging .drawer img { pointer-events: none; }   /* keep receiving mouse moves over the PDF */
/* Lines table scrolls horizontally inside its card; checkbox + description stay put on the left */
.lines .table-wrap { overflow-x: auto; max-width: 100%; }
.lines th.sticky, .lines td.sticky { position: sticky; z-index: 3; background: var(--surface); }
.lines .c-sel { left: 0; min-width: 3.4rem; width: 3.4rem; white-space: nowrap; }
.lines .c-sel input[type="checkbox"] { display: inline-block; margin-right: .25rem; vertical-align: middle; }
.lines .c-desc { left: 3.4rem; min-width: 15rem; box-shadow: 2px 0 0 var(--line); }
.lines td.c-desc { width: 100%; }
.lines tbody tr:hover td.sticky { background: color-mix(in srgb, var(--accent) 6%, var(--surface)); }
.lines tbody tr:has(input[type="checkbox"]:checked) td.sticky { background: color-mix(in srgb, var(--accent) 14%, var(--surface)); }