:root {
  --ink: #1c2530; --ink-2: #3d4a56; --muted: #66727d; --rule: #d9e1e5; --rule-2: #eaeff2;
  --paper: #f4f7f8; --surface: #ffffff; --teal: #1d5f6e; --teal-2: #174d59; --teal-tint: #e4eff1;
  --ok: #1f6b45; --ok-tint: #e2f1e8; --warn: #8a5a0b; --warn-tint: #fbf0da; --bad: #9b2c2c; --bad-tint: #f8e3e1;
  --focus: #2b7fa0; --radius: 10px; --shadow: 0 1px 2px rgba(20, 35, 45, .06), 0 1px 1px rgba(20, 35, 45, .04);
  --mono: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --ink: #e6edf1; --ink-2: #c3ced5; --muted: #93a1ab; --rule: #34424c; --rule-2: #2a3740;
    --paper: #121a20; --surface: #1a242b; --teal: #5fb3c4; --teal-2: #7cc6d5; --teal-tint: #1d3239;
    --ok: #7ccf9e; --ok-tint: #1c3328; --warn: #e8b96a; --warn-tint: #3a2e17; --bad: #f09a92; --bad-tint: #3d2220;
    --focus: #7cc6d5; color-scheme: dark;
  }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--paper); color: var(--ink); font: 15px/1.5 -apple-system, BlinkMacSystemFont, "Segoe UI", Inter, Roboto, "Helvetica Neue", Arial, sans-serif; }
a { color: var(--teal); text-decoration: none; }
a:hover { text-decoration: underline; }
h1 { font-size: 1.65rem; line-height: 1.2; margin: .1rem 0 .3rem; letter-spacing: -.01em; }
h2 { font-size: 1.05rem; margin: 0 0 .75rem; }
h3 { font-size: .95rem; margin: 1.25rem 0 .5rem; }
small, .fine { font-size: .8rem; }
.fine { color: var(--muted); margin: .6rem 0 0; }
.muted { color: var(--muted); }
.mono { font-family: var(--mono); font-size: .88em; }
.num { text-align: right; font-variant-numeric: tabular-nums; }
.right { text-align: right; }
.nowrap { white-space: nowrap; }
.bad { color: var(--bad); }
.opt { color: var(--muted); font-weight: 400; font-size: .78rem; }
kbd { font-family: var(--mono); font-size: .72rem; border: 1px solid currentColor; border-radius: 4px; padding: 0 .3rem; opacity: .75; margin-left: .25rem; }
:focus-visible { outline: 2px solid var(--focus); outline-offset: 2px; }

.topbar { display: flex; align-items: center; gap: 1.5rem; padding: .6rem 1.5rem; background: var(--surface); border-bottom: 1px solid var(--rule); position: sticky; top: 0; z-index: 5; flex-wrap: wrap; }
.brand { display: flex; align-items: center; gap: .6rem; color: var(--ink); }
.brand:hover { text-decoration: none; }
.brand .mark { width: 30px; height: 30px; border-radius: 7px; background: var(--teal); color: #fff; display: grid; place-items: center; font-weight: 700; }
.brand strong { display: block; font-size: .95rem; line-height: 1.1; }
.brand small { display: block; color: var(--muted); font-size: .72rem; }
.nav { display: flex; gap: .15rem; flex: 1; flex-wrap: wrap; }
.nav a { color: var(--ink-2); padding: .4rem .65rem; border-radius: 7px; font-size: .9rem; }
.nav a:hover { background: var(--teal-tint); text-decoration: none; color: var(--ink); }
.who { display: flex; align-items: center; gap: .75rem; font-size: .88rem; }
.who small { display: block; color: var(--muted); font-size: .72rem; }
.who form { margin: 0; }

.page { max-width: 1180px; margin: 0 auto; padding: 1.5rem 1.5rem 4rem; }
.page.wide { max-width: none; padding: 0; }
.pagehead { display: flex; justify-content: space-between; align-items: flex-end; gap: 1rem; margin-bottom: 1.25rem; flex-wrap: wrap; }
.headactions { display: flex; gap: .5rem; flex-wrap: wrap; }
.eyebrow { text-transform: uppercase; letter-spacing: .09em; font-size: .7rem; font-weight: 600; color: var(--teal); margin: 0; }
.meta { color: var(--muted); margin: 0; font-size: .9rem; }

.card { background: var(--surface); border: 1px solid var(--rule); border-radius: var(--radius); padding: 1.25rem; margin-bottom: 1.25rem; box-shadow: var(--shadow); min-width: 0; }
.card.narrow { max-width: 620px; margin: 3rem auto; }
.card.center { text-align: center; }
.narrowcard { max-width: 520px; }
.cardhead { display: flex; justify-content: space-between; align-items: baseline; gap: 1rem; margin-bottom: .5rem; flex-wrap: wrap; }
.cardhead h2 { margin: 0; }
.total { color: var(--muted); } .total strong { color: var(--ink); font-size: 1.1rem; margin-left: .35rem; }
.grid2 { display: grid; grid-template-columns: minmax(0, 1fr) 320px; gap: 1.25rem; align-items: start; }
.stackcol > .card { margin-bottom: 1.25rem; }
.empty { color: var(--muted); padding: .75rem 0; margin: 0; }

.tiles { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 1rem; margin-bottom: 1.25rem; }
.tile { background: var(--surface); border: 1px solid var(--rule); border-radius: var(--radius); padding: 1rem 1.1rem; color: var(--ink-2); box-shadow: var(--shadow); display: flex; flex-direction: column; gap: .15rem; font-size: .88rem; }
a.tile:hover { text-decoration: none; border-color: var(--teal); }
.tile .num { text-align: left; font-size: 1.9rem; font-weight: 650; color: var(--ink); line-height: 1.1; }
.tile.attn { border-left: 4px solid var(--warn); }

.btn { display: inline-flex; align-items: center; justify-content: center; gap: .35rem; border: 1px solid var(--rule); background: var(--surface); color: var(--ink); padding: .5rem .9rem; border-radius: 8px; font: inherit; font-size: .9rem; font-weight: 550; cursor: pointer; white-space: nowrap; }
.btn:hover { border-color: var(--teal); text-decoration: none; }
.btn.primary { background: var(--teal); border-color: var(--teal); color: #fff; }
.btn.primary:hover { background: var(--teal-2); }
.btn.ghost { background: transparent; }
.btn.small { padding: .3rem .6rem; font-size: .82rem; }
.btn.danger { color: var(--bad); }
.btn[disabled] { opacity: .45; cursor: not-allowed; }
.btn.approve { background: var(--ok); border-color: var(--ok); color: #fff; padding: .7rem 1.2rem; font-size: 1rem; }
@media (prefers-color-scheme: dark) { :root:not([data-theme="light"]) .btn.primary, :root:not([data-theme="light"]) .btn.approve { color: #0d1519; } }
.linkbtn { background: none; border: 0; color: var(--teal); font: inherit; font-size: .85rem; cursor: pointer; padding: 0 .2rem; }
.linkbtn.danger { color: var(--bad); }
form.inline { display: inline; margin: 0; }

.pill { display: inline-block; font-size: .72rem; font-weight: 600; padding: .1rem .5rem; border-radius: 999px; background: var(--rule-2); color: var(--ink-2); white-space: nowrap; }
.pill.ok { background: var(--ok-tint); color: var(--ok); }
.pill.warn { background: var(--warn-tint); color: var(--warn); }
.pill.bad { background: var(--bad-tint); color: var(--bad); }
.notice { background: var(--ok-tint); color: var(--ok); border-radius: 8px; padding: .6rem .9rem; margin-bottom: 1rem; font-weight: 550; }
.alert { background: var(--bad-tint); color: var(--bad); border-radius: 8px; padding: .6rem .9rem; margin: .75rem 0; }
.callout { border-left: 4px solid var(--teal); background: var(--teal-tint); padding: .8rem 1rem; border-radius: 0 8px 8px 0; margin-bottom: 1.25rem; }
.callout.warn { border-color: var(--warn); background: var(--warn-tint); }
.callout.bad { border-color: var(--bad); background: var(--bad-tint); }

.tablewrap { overflow-x: auto; margin: 0 -.25rem; }
table { width: 100%; border-collapse: collapse; font-size: .9rem; }
th { text-align: left; font-size: .7rem; text-transform: uppercase; letter-spacing: .06em; color: var(--muted); font-weight: 600; padding: .5rem .5rem; border-bottom: 1px solid var(--rule); white-space: nowrap; }
td { padding: .6rem .5rem; border-bottom: 1px solid var(--rule-2); vertical-align: middle; }
tr.rowlink:hover td { background: var(--teal-tint); }
tr.subrow td { padding-top: 0; border-bottom: 1px solid var(--rule-2); }
tr.subrow details summary { font-size: .8rem; color: var(--muted); cursor: pointer; }
tr.inactive td { opacity: .6; }
.ledger tr.subtotal td, tfoot td { font-weight: 650; background: var(--paper); }
tr.adj td { background: var(--warn-tint); }
.older { font-size: .82rem; color: var(--muted); margin: .25rem 0; }

label { display: flex; flex-direction: column; gap: .25rem; font-size: .82rem; font-weight: 600; color: var(--ink-2); }
input, select, textarea { font: inherit; font-size: .92rem; color: var(--ink); background: var(--surface); border: 1px solid var(--rule); border-radius: 7px; padding: .45rem .6rem; min-width: 0; font-weight: 400; }
textarea { resize: vertical; }
input[type=file] { padding: .3rem; }
label.check { flex-direction: row; align-items: center; gap: .45rem; font-weight: 500; }
label.check.strong { font-weight: 650; color: var(--ink); }
.stack { display: flex; flex-direction: column; gap: .75rem; }
.stack.tight { gap: .45rem; }
.formrow { display: flex; gap: .75rem; align-items: flex-end; flex-wrap: wrap; margin-bottom: .6rem; }
.formrow label { flex: 1 1 160px; }
.formrow .grow, .grow { flex: 2 1 240px; }
.rowform { display: flex; gap: .5rem; align-items: center; flex-wrap: wrap; margin-top: .5rem; }
.formgrid { display: grid; grid-template-columns: 1fr 1fr; gap: 1.5rem; }
.formgrid fieldset { border: 0; padding: 0; margin: 0; display: grid; grid-template-columns: 1fr 1fr; gap: .8rem; align-content: start; }
.formgrid legend { font-weight: 650; margin-bottom: .6rem; font-size: 1rem; }
.span2 { grid-column: 1 / -1; }
.checks { grid-column: 1 / -1; display: flex; flex-direction: column; gap: .4rem; }
.actions { display: flex; justify-content: flex-end; gap: .5rem; }
.upload { border-top: 1px solid var(--rule); margin-top: 1rem; padding-top: .25rem; }
.searchbar { display: flex; gap: .75rem; align-items: flex-end; flex-wrap: wrap; margin-bottom: 1rem; }
.searchbar label { flex: 1 1 170px; }
.tabs { display: flex; gap: .25rem; border-bottom: 1px solid var(--rule); margin-bottom: .5rem; flex-wrap: wrap; }
.tabs a, .tabs span { padding: .45rem .75rem; color: var(--muted); font-size: .88rem; border-bottom: 2px solid transparent; margin-bottom: -1px; }
.tabs .on { color: var(--ink); border-color: var(--teal); font-weight: 600; }
.plain { list-style: none; padding: 0; margin: 0 0 .5rem; } .plain li { padding: .25rem 0; font-size: .9rem; }
details.menu { position: relative; display: inline-block; text-align: left; }
details.menu summary { cursor: pointer; color: var(--teal); font-size: .85rem; list-style: none; }
details.menu[open] > :not(summary) { margin-top: .5rem; }
details.menu[open] { background: var(--surface); border: 1px solid var(--rule); border-radius: 8px; padding: .6rem; box-shadow: var(--shadow); }
.linkbox { display: flex; gap: .5rem; margin: 1rem 0; } .linkbox input { flex: 1; font-family: var(--mono); font-size: .8rem; }

body.auth { background: linear-gradient(180deg, var(--teal-tint), var(--paper) 45%); }
.auth-card { max-width: 440px; margin: 8vh auto; background: var(--surface); border: 1px solid var(--rule); border-radius: 14px; padding: 2rem; box-shadow: 0 10px 30px rgba(20, 40, 50, .08); border-top: 5px solid var(--teal); }
.auth-card h1 { font-size: 1.45rem; }
.auth-card form { margin-top: 1.25rem; }
.steps { padding-left: 1.2rem; color: var(--ink-2); font-size: .9rem; }
.qr { display: grid; place-items: center; background: #fff; border-radius: 8px; padding: .5rem; margin: .75rem auto; width: fit-content; }
.qr svg { width: 200px; height: 200px; }
.key { display: flex; flex-direction: column; align-items: center; gap: .2rem; font-size: .75rem; color: var(--muted); }
.key code { font-size: .85rem; letter-spacing: .08em; color: var(--ink); word-break: break-all; text-align: center; }

/* billing review: source document beside extracted lines */
body.reviewing main { height: calc(100vh - 57px); }
.review { display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(420px, 1fr); height: 100%; }
.review .notice { position: absolute; }
.source { display: flex; flex-direction: column; border-right: 1px solid var(--rule); background: var(--rule-2); min-height: 0; }
.sourcehead { display: flex; justify-content: space-between; padding: .5rem 1rem; font-size: .82rem; color: var(--muted); background: var(--surface); border-bottom: 1px solid var(--rule); }
.source iframe { flex: 1; width: 100%; border: 0; background: #fff; }
.nosource { display: grid; place-items: center; flex: 1; padding: 2rem; text-align: center; color: var(--muted); }
.lines { overflow-y: auto; padding: 1.25rem 1.5rem 2rem; background: var(--surface); }
.lines h2 { margin-top: 1.25rem; font-size: .8rem; text-transform: uppercase; letter-spacing: .07em; color: var(--muted); }
.linetable td { padding: .4rem .35rem; }
.linetable tr[data-line].selected td { background: var(--teal-tint); box-shadow: inset 0 0 0 0 var(--teal); }
.linetable tr[data-line].selected td:first-child { box-shadow: inset 3px 0 0 var(--teal); }
.linetable tr.flag td { background: var(--bad-tint); }
.lineform { display: flex; gap: .3rem; margin: 0; }
.cpt { width: 5.2rem; } .mods { width: 4.2rem; } .units { width: 3.6rem; }
.addline { display: flex; gap: .4rem; margin-top: .6rem; flex-wrap: wrap; align-items: center; }
.addmissed summary { cursor: pointer; color: var(--teal); font-size: .88rem; margin-top: .75rem; }
.adjust summary { cursor: pointer; color: var(--teal); font-size: .82rem; }
.approvebar { position: sticky; bottom: -2rem; background: var(--surface); border-top: 1px solid var(--rule); margin: 1.5rem -1.5rem 0; padding: 1rem 1.5rem; display: flex; gap: 1rem; align-items: center; flex-wrap: wrap; }
.approvebar form { margin: 0; }
.approvenote { flex: 1 1 200px; font-size: .8rem; color: var(--muted); }
.navlinks { display: flex; gap: 1rem; align-items: center; font-size: .88rem; }
.keys { font-size: .78rem; color: var(--muted); margin-top: .75rem; }

@media (max-width: 960px) {
  .grid2, .formgrid { grid-template-columns: 1fr; }
  .tiles { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .review { grid-template-columns: 1fr; height: auto; }
  body.reviewing main { height: auto; }
  .source { height: 60vh; }
  .lines { overflow: visible; }
}
@media (max-width: 600px) {
  .hide-sm { display: none; }
  .ledger .subtotal-label { font-size: .85rem; }
  table.docs td, table.docs th { padding-left: .3rem; padding-right: .3rem; }
  .page { padding: 1rem 16px 3rem; }
  .topbar { padding: .6rem 16px; gap: .6rem; }
  .who span { display: none; }
  .formgrid fieldset { grid-template-columns: 1fr; }
  .tiles { grid-template-columns: 1fr 1fr; gap: .6rem; }
  .auth-card { margin: 1rem 16px; padding: 1.4rem; }
  .lines { padding: 1rem 16px 2rem; }
  .approvebar { margin: 1.5rem -16px 0; padding: 1rem 16px; }
}