:root {
  --bg: #f4f6f8; --card: #fff; --ink: #18212b; --muted: #687482; --line: #dfe4ea;
  --brand: #0f6e5c; --brand-ink: #fff; --brand-soft: #e3f2ee;
  --danger: #b42318; --warn: #a15c07; --warn-soft: #fff3e0; --ok-soft: #e3f2ee; --void-soft: #eceff2;
  --radius: 12px;
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--ink); font: 16px/1.45 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; }
main { max-width: 1100px; margin: 0 auto; padding: 20px 16px 60px; }
a { color: var(--brand); }
h1 { font-size: 1.6rem; margin: .2em 0 .6em; }
h2 { font-size: 1.15rem; margin: 0 0 .7em; }
h3 { font-size: 1rem; margin: 1.2em 0 .5em; }

nav.top { display: flex; justify-content: space-between; align-items: center; gap: 12px; flex-wrap: wrap;
  padding: 10px 16px; background: var(--ink); color: #fff; }
nav.top a { color: #fff; text-decoration: none; }
nav.top .brand { font-weight: 700; }
nav.top .links { display: flex; gap: 4px; align-items: center; flex-wrap: wrap; }
nav.top .links a, nav.top .link { padding: 8px 10px; border-radius: 8px; }
nav.top .links a:hover, nav.top .link:hover { background: rgba(255,255,255,.12); }
nav.top form { margin: 0; }
button.link { background: none; border: 0; color: #cfd6de; font: inherit; cursor: pointer; }

.card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 18px; margin-bottom: 16px; }
.card.flush { padding: 0; overflow-x: auto; }
.card.narrow { max-width: 460px; margin: 24px auto; }
.card.narrow-left { max-width: 480px; }
.callout { background: var(--brand-soft); border-color: #b9ded4; }

label { display: block; font-weight: 600; font-size: .92rem; margin-bottom: 12px; }
label.check { display: flex; gap: 8px; align-items: center; font-weight: 400; }
input, select, textarea { display: block; width: 100%; margin-top: 4px; padding: 12px; font: inherit; font-weight: 400;
  border: 1px solid #c5ccd5; border-radius: 9px; background: #fff; color: var(--ink); }
input[type=checkbox] { width: auto; margin: 0; }
input:focus, select:focus, textarea:focus { outline: 2px solid var(--brand); outline-offset: 0; border-color: var(--brand); }

.btn { display: inline-block; padding: 11px 18px; border: 0; border-radius: 9px; background: var(--brand); color: var(--brand-ink);
  font: inherit; font-weight: 600; text-decoration: none; cursor: pointer; margin: 0 6px 8px 0; text-align: center; }
.btn.secondary { background: var(--brand-soft); color: var(--brand); }
.btn.danger { background: #fde8e6; color: var(--danger); }
.btn.small { padding: 7px 11px; font-size: .88rem; margin: 0; }
.btn.big { padding: 15px 22px; font-size: 1.08rem; }
.btn.huge { padding: 22px; font-size: 1.3rem; border-radius: 14px; margin-bottom: 16px; }
.btn.full { display: block; width: 100%; margin-right: 0; }
.btn:hover { filter: brightness(.95); }

.flash { padding: 12px 14px; border-radius: 9px; margin-bottom: 16px; background: var(--warn-soft); color: var(--warn); }
.flash.ok { background: var(--ok-soft); color: var(--brand); }
.flash.err { background: #fde8e6; color: var(--danger); }
.ok-text { color: var(--brand); font-weight: 600; }
.muted { color: var(--muted); font-weight: 400; }
.small { font-size: .85rem; }
.center { text-align: center; }
.right { text-align: right; margin-left: auto; }
.num { text-align: right; font-variant-numeric: tabular-nums; white-space: nowrap; }

.grid2 { display: grid; grid-template-columns: 1fr 1fr; gap: 0 16px; }
.grid2 > section { margin-bottom: 16px; }
.span2 { grid-column: span 2; }
.row-between { display: flex; justify-content: space-between; align-items: center; gap: 12px; }
.row-between.wrap { flex-wrap: wrap; margin-bottom: 12px; }
.inline { display: inline-flex; gap: 6px; align-items: center; margin: 0 4px 0 0; }
.inline input, .inline select { width: auto; margin: 0; padding: 7px 9px; }
.actions { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }
.actions .btn { margin: 0; }
.actions form { margin: 0; }

.badge { display: inline-block; padding: 2px 9px; border-radius: 99px; font-size: .78rem; font-weight: 700; text-transform: capitalize; }
.badge.paid { background: var(--ok-soft); color: var(--brand); }
.badge.outstanding { background: var(--warn-soft); color: var(--warn); }
.badge.void { background: var(--void-soft); color: var(--muted); }

.tiles { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin-bottom: 16px; }
.tile { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 14px 16px; }
.tile span { display: block; color: var(--muted); font-size: .85rem; }
.tile strong { display: block; font-size: 1.5rem; font-variant-numeric: tabular-nums; }
.tile em { font-style: normal; color: var(--muted); font-size: .85rem; }

.tabs { display: flex; gap: 4px; background: var(--card); border: 1px solid var(--line); border-radius: 10px; padding: 4px; }
.tabs a { padding: 7px 14px; border-radius: 7px; text-decoration: none; color: var(--ink); font-weight: 600; font-size: .92rem; }
.tabs a.on { background: var(--ink); color: #fff; }
.search { display: flex; gap: 6px; }
.search input { margin: 0; min-width: 240px; padding: 9px 11px; }
.search .btn { margin: 0; }

table.data { width: 100%; border-collapse: collapse; }
table.data th, table.data td { padding: 11px 14px; border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; }
table.data th { font-size: .8rem; text-transform: uppercase; letter-spacing: .03em; color: var(--muted); background: #fafbfc; }
table.data th.num, table.data td.num { text-align: right; }
table.data tbody tr[onclick] { cursor: pointer; }
table.data tbody tr:hover { background: #f8fafb; }
table.data tr.inactive td { color: var(--muted); }
table.data td a { font-weight: 600; text-decoration: none; }

table.lines { width: 100%; border-collapse: collapse; margin: 8px 0; }
table.lines td { padding: 8px 0; border-bottom: 1px solid var(--line); }
table.lines tr.sub td { color: var(--muted); border-bottom: 0; padding: 4px 0; }
table.lines tr.grand td { font-size: 1.2rem; font-weight: 700; border-top: 2px solid var(--ink); border-bottom: 0; padding-top: 10px; }
.notes { white-space: pre-wrap; background: #fafbfc; border-radius: 8px; padding: 10px 12px; }

ul.list { list-style: none; margin: 0; padding: 0; }
ul.list li a { display: flex; gap: 12px; align-items: center; padding: 14px 4px; border-bottom: 1px solid var(--line); color: var(--ink); text-decoration: none; }
ul.list li:last-child a { border-bottom: 0; }

/* Technician invoice form */
.hanger-number { font-size: 1.05rem; }
.hanger-number input { font-size: 2rem; font-weight: 700; letter-spacing: .06em; text-align: center; padding: 14px; }
.chips { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 14px; }
.chip { border: 1px solid #b9ded4; background: var(--brand-soft); color: var(--brand); border-radius: 99px; padding: 10px 14px; font: inherit; font-weight: 600; cursor: pointer; }
.chip span { font-weight: 400; opacity: .8; margin-left: 4px; }
.item-head, .item-row { display: grid; grid-template-columns: 1fr 76px 110px 44px; gap: 8px; align-items: center; }
.item-head { font-size: .8rem; color: var(--muted); font-weight: 600; text-transform: uppercase; }
.item-row { margin-bottom: 8px; }
.item-row input { margin: 0; }
.icon { width: 44px; height: 46px; border: 0; border-radius: 9px; background: #f1f3f5; font-size: 1.4rem; color: var(--muted); cursor: pointer; }
.totals { border-top: 1px solid var(--line); padding-top: 10px; }
.totals div { display: flex; justify-content: space-between; padding: 3px 0; font-variant-numeric: tabular-nums; }
.totals .grand { font-size: 1.35rem; font-weight: 700; }

/* Customer pay portal */
.hero { text-align: center; padding: 60px 0; }
.hero h1 { font-size: 2.4rem; }
.pay-head { text-align: center; border-bottom: 1px solid var(--line); margin: -4px 0 16px; padding-bottom: 12px; }
.pay-head h1 { margin: 0; font-size: 1.4rem; }
.pay-head p { margin: 2px 0 0; }
.pay .hanger-number input { font-size: 1.8rem; }
.paid-stamp { text-align: center; font-size: 1.3rem; font-weight: 700; color: var(--brand); background: var(--ok-soft); border-radius: 10px; padding: 18px; margin-top: 12px; }

@media (max-width: 720px) {
  .grid2, .tiles { grid-template-columns: 1fr; }
  .span2 { grid-column: auto; }
  .item-head { display: none; }
  .item-row { grid-template-columns: 1fr 64px 92px 40px; gap: 6px; }
  .search input { min-width: 0; }
  table.data th:nth-child(2), table.data td:nth-child(2), table.data th:nth-child(4), table.data td:nth-child(4) { display: none; }
}