:root {
  color-scheme: light;
  --bg: #f4f6f9; --surface: #fff; --border: #dfe5ec; --text: #0f1b2b; --text-2: #4a5a6e; --muted: #7a8899;
  --navy: #0a2f55; --teal: #1f9e8c; --teal-bg: #e6f6f3; --err: #b42318; --err-bg: #fdecea; --field: #fff;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    color-scheme: dark;
    --bg: #0e1520; --surface: #151e2b; --border: #2a3749; --text: #eef2f7; --text-2: #b6c2d1; --muted: #8796a8;
    --navy: #0a2340; --teal: #2bb8a3; --teal-bg: #11332f; --err: #ff8b80; --err-bg: #3d1a17; --field: #101824;
  }
}
:root[data-theme="dark"] {
  color-scheme: dark;
  --bg: #0e1520; --surface: #151e2b; --border: #2a3749; --text: #eef2f7; --text-2: #b6c2d1; --muted: #8796a8;
  --navy: #0a2340; --teal: #2bb8a3; --teal-bg: #11332f; --err: #ff8b80; --err-bg: #3d1a17; --field: #101824;
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--text); font: 15px/1.5 Inter, ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; -webkit-font-smoothing: antialiased; }
header { background: #0a2f55; color: #fff; }
header .in { max-width: 760px; margin: 0 auto; padding: 14px 16px; display: flex; align-items: center; gap: 12px; }
header img { width: 40px; height: 40px; border-radius: 50%; background: #fff; }
header b { font-size: 16px; } header small { display: block; color: #a9bdd4; font-size: 13px; }
main { max-width: 760px; margin: 0 auto; padding: 20px 16px 120px; }
h1 { font-size: 24px; margin: 4px 0 4px; letter-spacing: -.01em; }
.lead { color: var(--text-2); margin: 0 0 18px; }
.card { background: var(--surface); border: 1px solid var(--border); border-radius: 14px; padding: 18px; margin-bottom: 14px; }
.card h2 { font-size: 16px; margin: 0 0 4px; display: flex; justify-content: space-between; gap: 10px; align-items: baseline; }
.card h2 span { font-size: 14px; font-weight: 600; color: var(--text-2); font-variant-numeric: tabular-nums; }
.card p.hint { color: var(--muted); font-size: 13px; margin: 0 0 12px; }
.billto { display: grid; grid-template-columns: auto 1fr; gap: 2px 14px; font-size: 14px; }
.billto dt { color: var(--muted); } .billto dd { margin: 0; }
label { display: block; font-size: 13px; font-weight: 600; color: var(--text-2); margin: 12px 0 5px; }
label .opt { font-weight: 400; color: var(--muted); }
input, select, textarea { width: 100%; font: inherit; color: var(--text); background: var(--field); border: 1px solid var(--border); border-radius: 10px; padding: 11px 12px; min-height: 44px; }
input:focus, select:focus, textarea:focus { outline: 2px solid var(--teal); outline-offset: 1px; border-color: transparent; }
textarea { min-height: 80px; resize: vertical; }
.row2 { display: grid; grid-template-columns: 1fr 1fr; gap: 0 12px; }
.money { position: relative; } .money::before { content: "₱"; position: absolute; left: 12px; top: 50%; transform: translateY(-50%); color: var(--muted); pointer-events: none; }
.money input { padding-left: 26px; font-variant-numeric: tabular-nums; }
.lines { display: grid; gap: 10px; margin-top: 4px; }
.line { display: grid; grid-template-columns: 1fr 150px 40px; gap: 8px; align-items: start; }
.line.exp { grid-template-columns: 1fr 150px 40px; }
.line .file { grid-column: 1 / 3; display: flex; align-items: center; gap: 8px; font-size: 13px; color: var(--text-2); }
.line .file input { min-height: 0; padding: 6px; font-size: 13px; }
.del { width: 40px; height: 44px; border: 1px solid var(--border); background: transparent; border-radius: 10px; color: var(--muted); font-size: 20px; cursor: pointer; }
.del:hover { color: var(--err); border-color: var(--err); }
.add { margin-top: 10px; background: transparent; border: 1px dashed var(--border); color: var(--teal); font: inherit; font-weight: 600; font-size: 14px; border-radius: 10px; padding: 9px 14px; cursor: pointer; }
.add:hover { border-color: var(--teal); background: var(--teal-bg); }
.sep { border: 0; border-top: 1px solid var(--border); margin: 10px 0; }
.check { display: flex; gap: 10px; align-items: flex-start; font-weight: 600; color: var(--text); font-size: 14px; margin: 4px 0 0; cursor: pointer; }
.check input { width: 20px; height: 20px; min-height: 0; margin: 1px 0 0; accent-color: var(--teal); flex: none; }
.bankfields[hidden] { display: none; }
.totals { display: grid; gap: 4px; font-size: 14px; }
.totals div { display: flex; justify-content: space-between; color: var(--text-2); font-variant-numeric: tabular-nums; }
.totals .due { font-size: 18px; font-weight: 700; color: var(--text); border-top: 1px solid var(--border); padding-top: 8px; margin-top: 4px; }
.bar { position: fixed; left: 0; right: 0; bottom: 0; background: var(--surface); border-top: 1px solid var(--border); box-shadow: 0 -4px 16px rgba(0,0,0,.06); }
.bar .in { max-width: 760px; margin: 0 auto; padding: 12px 16px calc(12px + env(safe-area-inset-bottom)); display: flex; align-items: center; gap: 14px; }
.bar .sum { flex: 1; } .bar .sum small { display: block; color: var(--muted); font-size: 12px; } .bar .sum b { font-size: 20px; font-variant-numeric: tabular-nums; }
.btn { background: var(--teal); color: #fff; border: 0; border-radius: 10px; padding: 13px 22px; font: inherit; font-weight: 700; cursor: pointer; min-height: 48px; }
.btn:disabled { opacity: .6; cursor: progress; }
.btn.alt { background: var(--navy); }
.err { background: var(--err-bg); color: var(--err); border-radius: 10px; padding: 10px 12px; font-size: 14px; margin: 0 0 14px; }
.err[hidden] { display: none; }
.hp { position: absolute; left: -9999px; }
#done[hidden], #formwrap[hidden] { display: none; }
.ok { display: flex; gap: 12px; align-items: center; margin: 4px 0 14px; }
.ok i { width: 44px; height: 44px; border-radius: 50%; background: #22c55e; color: #fff; display: grid; place-items: center; font-style: normal; font-size: 24px; flex: none; }
.ok h1 { color: #16a34a; margin: 0; }
iframe { width: 100%; height: 900px; border: 1px solid var(--border); border-radius: 12px; background: #fff; }
.actions { display: flex; gap: 10px; flex-wrap: wrap; margin: 0 0 14px; }
@media (max-width: 560px) {
  .row2 { grid-template-columns: 1fr; }
  .line, .line.exp { grid-template-columns: 1fr 120px 40px; }
  .bar .sum b { font-size: 18px; }
}

.line.claim { grid-template-columns: 1fr 120px 40px; }
.line.claim .sub { grid-column: 1 / 3; }
.line { padding-bottom: 10px; border-bottom: 1px solid var(--border); }
.line:last-child { border-bottom: 0; padding-bottom: 0; }
.money.gbp::before { content: "£"; }
.rates { width: 100%; border-collapse: collapse; font-size: 13px; margin: 6px 0 12px; }
.rates th, .rates td { text-align: left; padding: 6px 8px; border-bottom: 1px solid var(--border); }
.rates th { color: var(--muted); font-weight: 500; }
.rates td:not(:first-child), .rates th:not(:first-child) { text-align: right; }
@media (max-width: 560px) { .line.claim .sub { grid-template-columns: 1fr; } }