:root {
  --bg: #f4f6f9; --card: #ffffff; --ink: #14202e; --muted: #5a6b7d; --line: #dde3ea;
  --brand: #0f3d5e; --brand-ink: #ffffff; --accent: #0a8a76; --accent-soft: #e0f4f0;
  --good: #137a3a; --good-soft: #e3f5ea; --warn: #9a5b00; --warn-soft: #fff1d6;
  --bad: #b42318; --bad-soft: #fde8e6; --info: #1d5fa8; --info-soft: #e6f0fb;
  --radius: 12px; --shadow: 0 1px 2px rgba(16,32,48,.06), 0 2px 8px rgba(16,32,48,.05);
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0e151c; --card: #17212b; --ink: #e8eef4; --muted: #9db0c2; --line: #2a3846;
    --brand: #123f61; --accent: #35c2aa; --accent-soft: #123a35;
    --good: #5fd08a; --good-soft: #14301f; --warn: #f0b04d; --warn-soft: #3a2a0c;
    --bad: #ff8b7e; --bad-soft: #3b1713; --info: #7fb4f0; --info-soft: #14283f;
    --shadow: none;
  }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0; background: var(--bg); color: var(--ink);
  font: 15px/1.45 system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", "Noto Sans", "PingFang SC", "Microsoft YaHei", sans-serif;
  padding-bottom: env(safe-area-inset-bottom);
}
h1, h2, h3 { margin: 0; line-height: 1.2; }
h1 { font-size: 22px; } h2 { font-size: 17px; } h3 { font-size: 15px; }
a { color: var(--info); }
button, input, select, textarea { font: inherit; color: inherit; }
.hidden { display: none !important; }
.muted { color: var(--muted); } .small { font-size: 13px; } .right { text-align: right; } .nowrap { white-space: nowrap; }
.mono { font-variant-numeric: tabular-nums; }

/* header and navigation */
.topbar {
  background: var(--brand); color: var(--brand-ink); position: sticky; top: 0; z-index: 20;
  padding: env(safe-area-inset-top) 14px 0;
}
.topbar-row { display: flex; align-items: center; gap: 10px; min-height: 52px; }
.brand { font-weight: 700; font-size: 17px; letter-spacing: .2px; display: flex; align-items: center; gap: 8px; flex: 1; min-width: 0; }
.brand svg { flex: none; }
.topbar select, .topbar .iconbtn {
  background: rgba(255,255,255,.14); border: 0; color: #fff; border-radius: 8px; padding: 7px 8px; min-height: 36px;
}
.topbar select option { color: #111; }
.nav { display: flex; gap: 2px; overflow-x: auto; scrollbar-width: none; padding-bottom: 2px; margin: 0 -6px; }
.nav::-webkit-scrollbar { display: none; }
.nav a {
  display: flex; flex-direction: column; align-items: center; gap: 2px; padding: 6px 12px 7px; color: rgba(255,255,255,.78);
  text-decoration: none; font-size: 12px; border-radius: 8px 8px 0 0; white-space: nowrap; min-width: 64px;
}
.nav a svg { width: 20px; height: 20px; stroke: currentColor; fill: none; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.nav a.active { color: #fff; background: rgba(255,255,255,.16); box-shadow: inset 0 -3px 0 #19b39a; }

main { max-width: 980px; margin: 0 auto; padding: 16px 14px 60px; }
.page-head { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; margin-bottom: 14px; }
.page-head h1 { flex: 1; min-width: 120px; }
.back { text-decoration: none; font-size: 14px; display: inline-block; margin-bottom: 8px; }

/* cards and layout */
.card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow); padding: 14px; margin-bottom: 14px; }
.card h2 { margin-bottom: 10px; }
.grid { display: grid; gap: 12px; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); }
.grid.wide { grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); }
.kpi { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 12px 14px; box-shadow: var(--shadow); }
.kpi .v { font-size: 24px; font-weight: 700; margin-top: 2px; }
.kpi .l { color: var(--muted); font-size: 13px; }
.kpi.bad .v { color: var(--bad); } .kpi.warn .v { color: var(--warn); } .kpi.good .v { color: var(--good); }
.row { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.row.between { justify-content: space-between; }
.stack > * + * { margin-top: 10px; }
.list-item {
  display: flex; align-items: center; gap: 12px; padding: 12px 14px; background: var(--card); border: 1px solid var(--line);
  border-radius: var(--radius); margin-bottom: 8px; text-decoration: none; color: inherit; box-shadow: var(--shadow);
}
.list-item:active { background: var(--accent-soft); }
.list-item .grow { flex: 1; min-width: 0; }
.list-item .title { font-weight: 600; overflow-wrap: anywhere; }
.list-item .sub { color: var(--muted); font-size: 13px; overflow-wrap: anywhere; }
.empty { text-align: center; color: var(--muted); padding: 28px 10px; }

/* chips and badges */
.badge { display: inline-block; padding: 2px 9px; border-radius: 999px; font-size: 12px; font-weight: 600; white-space: nowrap; background: var(--info-soft); color: var(--info); }
.badge.good { background: var(--good-soft); color: var(--good); } .badge.warn { background: var(--warn-soft); color: var(--warn); }
.badge.bad { background: var(--bad-soft); color: var(--bad); } .badge.gray { background: var(--line); color: var(--muted); }
.chips { display: flex; gap: 8px; overflow-x: auto; padding-bottom: 6px; margin-bottom: 10px; scrollbar-width: none; }
.chip { border: 1px solid var(--line); background: var(--card); border-radius: 999px; padding: 6px 13px; font-size: 13px; cursor: pointer; white-space: nowrap; }
.chip.on { background: var(--brand); color: #fff; border-color: var(--brand); }
.tabs { display: flex; gap: 4px; border-bottom: 1px solid var(--line); margin-bottom: 14px; overflow-x: auto; scrollbar-width: none; }
.tabs button { background: none; border: 0; padding: 10px 14px; cursor: pointer; color: var(--muted); border-bottom: 3px solid transparent; white-space: nowrap; }
.tabs button.on { color: var(--ink); font-weight: 600; border-bottom-color: var(--accent); }

/* buttons and forms */
.btn {
  border: 1px solid var(--line); background: var(--card); color: var(--ink); padding: 9px 15px; border-radius: 9px; cursor: pointer;
  font-weight: 600; min-height: 40px; display: inline-flex; align-items: center; gap: 6px; text-decoration: none;
}
.btn.primary { background: var(--brand); border-color: var(--brand); color: #fff; }
.btn.accent { background: var(--accent); border-color: var(--accent); color: #fff; }
.btn.danger { color: var(--bad); border-color: var(--bad); }
.btn.small { min-height: 32px; padding: 4px 10px; font-size: 13px; }
.btn:disabled { opacity: .5; cursor: default; }
label.f { display: block; font-size: 13px; color: var(--muted); margin-bottom: 10px; }
label.f > span { display: block; margin-bottom: 4px; }
input, select, textarea {
  width: 100%; padding: 9px 10px; border: 1px solid var(--line); border-radius: 9px; background: var(--card); min-height: 40px; font-size: 16px;
}
textarea { min-height: 70px; resize: vertical; }
input[type=checkbox] { width: 20px; height: 20px; min-height: 0; accent-color: var(--accent); }
label.check { display: flex; align-items: center; gap: 10px; margin-bottom: 10px; font-size: 14px; }
.form-grid { display: grid; gap: 0 12px; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); }
.error { background: var(--bad-soft); color: var(--bad); padding: 9px 12px; border-radius: 9px; margin-bottom: 10px; font-size: 14px; }
.note { background: var(--info-soft); color: var(--info); padding: 9px 12px; border-radius: 9px; margin-bottom: 10px; font-size: 13px; }

/* tables */
.table-wrap { overflow-x: auto; -webkit-overflow-scrolling: touch; }
table { width: 100%; border-collapse: collapse; font-size: 14px; }
th, td { text-align: left; padding: 8px 8px; border-bottom: 1px solid var(--line); vertical-align: top; }
th { font-size: 12px; text-transform: uppercase; letter-spacing: .4px; color: var(--muted); white-space: nowrap; }
td.num, th.num { text-align: right; font-variant-numeric: tabular-nums; white-space: nowrap; }
tr.total td { font-weight: 700; border-top: 2px solid var(--ink); border-bottom: 0; }

/* modal sheet */
.overlay { position: fixed; inset: 0; background: rgba(8,16,24,.55); z-index: 50; display: flex; align-items: flex-end; justify-content: center; }
.sheet {
  background: var(--card); width: 100%; max-width: 560px; max-height: 92vh; overflow-y: auto; border-radius: 18px 18px 0 0;
  padding: 18px 16px calc(18px + env(safe-area-inset-bottom));
}
.sheet h2 { margin-bottom: 12px; }
@media (min-width: 700px) { .overlay { align-items: center; } .sheet { border-radius: 16px; } }
.toast { position: fixed; left: 50%; bottom: 24px; transform: translateX(-50%); background: #14202e; color: #fff; padding: 10px 16px; border-radius: 10px; z-index: 80; max-width: 90%; font-size: 14px; }
.toast.bad { background: var(--bad); }
.loading { text-align: center; padding: 40px; color: var(--muted); }

/* login */
.auth { max-width: 420px; margin: 8vh auto 0; padding: 0 16px; }
.auth .logo { display: flex; justify-content: center; margin-bottom: 14px; }
.auth h1 { text-align: center; margin-bottom: 4px; }
.auth .sub { text-align: center; color: var(--muted); margin-bottom: 18px; }

/* statement paper */
.paper { background: #fff; color: #111; border: 1px solid var(--line); border-radius: 6px; padding: 18px; max-width: 760px; margin: 0 auto 16px; font-size: 14px; }
.paper table { font-size: 13.5px; } .paper th { color: #444; } .paper td, .paper th { border-color: #d6dbe1; }
.paper .letterhead { display: flex; justify-content: space-between; gap: 14px; flex-wrap: wrap; border-bottom: 2px solid #111; padding-bottom: 8px; margin-bottom: 10px; }
.paper .letterhead h2 { font-size: 20px; }
.paper .kv { display: grid; grid-template-columns: 1fr 1fr; gap: 3px 18px; margin: 10px 0 14px; }
.paper .kv div { display: flex; justify-content: space-between; gap: 8px; border-bottom: 1px dotted #bbb; padding: 2px 0; }
.paper .kv b { font-weight: 700; }
.paper .kv .strong { font-size: 15px; }
.paper input { padding: 3px 6px; min-height: 30px; font-size: 14px; text-align: right; width: 110px; background: #fffbe8; color: #111; border-color: #e3d79a; }
.paper h3 { margin: 16px 0 6px; text-transform: uppercase; font-size: 13px; letter-spacing: .5px; }
.page-break { page-break-before: always; }
.draft-mark { color: #b42318; font-weight: 700; }

@media print {
  .topbar, .no-print, .toast, .overlay, .back { display: none !important; }
  body { background: #fff; } main { padding: 0; max-width: none; }
  .paper { border: 0; box-shadow: none; margin: 0; max-width: none; padding: 0; }
  .paper input { border: 0; background: transparent; padding: 0; width: auto; text-align: right; font-size: 13.5px; }
  .card { border: 0; box-shadow: none; padding: 0; }
}

/* phone fixes */
.brand { white-space: nowrap; }
.topbar select { max-width: 112px; flex: none; }
.nav a { flex: none; white-space: nowrap; }
.paper th, .paper td { white-space: nowrap; }
.paper .letterhead + * , .paper .kv { min-width: 0; }
@media (max-width: 480px) { .paper { padding: 12px; } .paper .kv { grid-template-columns: 1fr; } }