:root {
  --paper: #eef2f0;
  --surface: #ffffff;
  --ink: #1d2733;
  --muted: #5c6b66;
  --rule: #d3dcd8;
  --accent: #1f5f8b;
  --accent-ink: #ffffff;
  --good: #2f7d4f;
  --good-bg: #e3f1e8;
  --warn: #a15c07;
  --warn-bg: #fbeed9;
  --bad: #b3261e;
  --bad-bg: #fbe4e2;
  --radius: 10px;
  --radius-sm: 6px;
  --font: system-ui, -apple-system, "Segoe UI", Roboto, Ubuntu, "Helvetica Neue", Arial, sans-serif;
}

*, *::before, *::after { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font: 16px/1.5 var(--font);
}

a { color: var(--accent); }
a:hover { text-decoration-thickness: 2px; }

:focus-visible { outline: 3px solid var(--accent); outline-offset: 2px; }

h1 { font-size: 1.75rem; line-height: 1.2; margin: 1.5rem 0 1rem; letter-spacing: -0.01em; }
h2 { font-size: 1.125rem; margin: 0 0 0.75rem; }

.wrap { width: min(1080px, 100% - 2rem); margin-inline: auto; }

/* ---------- top bar ---------- */
.topbar { background: var(--ink); color: #fff; }
.topbar-inner { display: flex; flex-wrap: wrap; align-items: center; gap: 0.5rem 1.5rem; padding: 0.75rem 0; }
.brand { color: #fff; font-weight: 700; text-decoration: none; font-size: 1.05rem; }
.nav { display: flex; flex-wrap: wrap; gap: 0.25rem 1rem; align-items: center; margin-left: auto; }
.nav a { color: #d8e3ee; text-decoration: none; padding: 0.25rem 0; border-bottom: 2px solid transparent; }
.nav a:hover { color: #fff; }
.nav a[aria-current="page"] { color: #fff; border-bottom-color: #7fb3dc; }
.nav .linkish { color: #d8e3ee; }

main.wrap { padding-bottom: 3rem; }
.foot { color: var(--muted); font-size: 0.8rem; padding: 1rem 0 2rem; }

/* ---------- panels ---------- */
.panel {
  background: var(--surface);
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  padding: 1.25rem;
  margin: 0 0 1rem;
}
.panel.accent { border-color: var(--accent); }
.panel.narrow, .narrow { max-width: 30rem; }
.panel-head { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 0.25rem 1rem; align-items: baseline; }
.panel-head p { margin: 0 0 0.75rem; }

.lede { font-size: 1.125rem; }
.muted { color: var(--muted); }
.small { font-size: 0.875rem; }
.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }

/* ---------- hero: the one bold element ---------- */
.hero {
  background: var(--surface);
  border: 1px solid var(--rule);
  border-left: 6px solid var(--accent);
  border-radius: var(--radius);
  padding: 1.5rem 1.5rem 1.25rem;
  margin: 0 0 1rem;
}
.hero.compact { padding: 1.25rem; }
.hero-kicker { margin: 0 0 0.75rem; color: var(--muted); font-weight: 600; }
.hero-figure { display: flex; align-items: baseline; gap: 0.75rem; flex-wrap: wrap; }
.hero-num, .eq-num {
  font-variant-numeric: tabular-nums;
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.05;
}
.hero-num { font-size: clamp(2.25rem, 7vw, 3.5rem); }
.hero-num.good { color: var(--good); }
.hero-num.bad { color: var(--bad); }
.hero-cap, .eq-cap { color: var(--muted); font-size: 0.9rem; }
.hero-note { margin: 0.75rem 0 0; max-width: 70ch; }

.equation {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  gap: 0.5rem 1.25rem;
}
.equation > div:not(.eq-op) { display: flex; flex-direction: column; }
.eq-num { font-size: clamp(1.6rem, 4.5vw, 2.6rem); }
.eq-op { font-size: clamp(1.4rem, 4vw, 2.2rem); color: var(--muted); padding-bottom: 1.4rem; }
.eq-result .eq-num { color: var(--accent); }
.eq-result { border-bottom: 3px double var(--accent); padding-bottom: 0.1rem; }

/* ---------- pills & flashes ---------- */
.pill {
  display: inline-block;
  padding: 0.05rem 0.55rem;
  border-radius: 999px;
  font-size: 0.8rem;
  font-weight: 600;
  white-space: nowrap;
  vertical-align: 0.1em;
}
.pill-good { background: var(--good-bg); color: var(--good); }
.pill-warn { background: var(--warn-bg); color: var(--warn); }
.pill-bad { background: var(--bad-bg); color: var(--bad); }
.pill-neutral { background: #e6ecef; color: #3d4b57; }

.flash { border-radius: var(--radius-sm); padding: 0.7rem 0.9rem; margin: 1rem 0; border: 1px solid; }
.flash-good { background: var(--good-bg); border-color: #b7dbc4; color: #1f5a37; }
.flash-info { background: #e4eef6; border-color: #bcd3e6; color: #1c4a6b; }
.flash-warn { background: var(--warn-bg); border-color: #efd2a4; color: #7a4505; }
.flash-bad { background: var(--bad-bg); border-color: #f0bbb6; color: #8a1c16; }

/* ---------- tables ---------- */
.tablewrap { overflow-x: auto; margin: 0 -0.25rem; padding: 0 0.25rem; }
table { width: 100%; border-collapse: collapse; font-size: 0.95rem; }
th, td { text-align: left; padding: 0.55rem 0.6rem; border-bottom: 1px solid var(--rule); vertical-align: top; }
thead th { font-size: 0.8rem; color: var(--muted); font-weight: 600; border-bottom-width: 2px; }
tfoot th, tfoot td { border-top: 2px solid var(--rule); border-bottom: 0; font-weight: 600; }
.num { text-align: right; font-variant-numeric: tabular-nums; white-space: nowrap; }
tr.internal td { background: #f5f8f7; color: #44524d; }
tr.struck td { color: var(--muted); }
tr.struck td .amt { text-decoration: line-through; }
.amt.pos { color: var(--ink); }
.amt.neg { color: var(--good); }
.amt.zero { color: var(--muted); }
td.actions { white-space: nowrap; }
input.money { width: 6.5rem; text-align: right; font-variant-numeric: tabular-nums; }
.bill-lines td { vertical-align: middle; }
.bill-lines input:not([type="checkbox"]) { padding: 0.35rem 0.45rem; }

/* ---------- forms ---------- */
label { display: block; font-weight: 600; font-size: 0.92rem; }
input, select, textarea {
  display: block;
  width: 100%;
  margin-top: 0.3rem;
  padding: 0.55rem 0.65rem;
  font: inherit;
  font-weight: 400;
  color: var(--ink);
  background: #fff;
  border: 1px solid #b9c6c1;
  border-radius: var(--radius-sm);
}
input:focus, select:focus, textarea:focus { border-color: var(--accent); }
textarea { resize: vertical; }
fieldset { border: 1px solid var(--rule); border-radius: var(--radius-sm); padding: 0.75rem 1rem 1rem; margin: 0; grid-column: 1 / -1; }
legend { font-weight: 700; padding: 0 0.35rem; }
.hint { display: block; font-weight: 400; color: var(--muted); font-size: 0.83rem; margin-top: 0.25rem; }

.grid-form {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(15rem, 1fr));
  gap: 1rem 1.25rem;
  align-items: start;
  margin-bottom: 1rem;
}
.grid-form > .btn, .grid-form > .check, .grid-form > label:has(textarea) { grid-column: 1 / -1; }
.grid-form > .btn { justify-self: start; }
.stack { display: grid; gap: 0.9rem; }
.stack > .btn { justify-self: start; }

label.check { display: flex; gap: 0.55rem; align-items: flex-start; font-weight: 400; }
label.check input { width: auto; margin: 0.25rem 0 0; flex: none; }
td label.check input { margin: 0; width: 1.2rem; height: 1.2rem; }

/* ---------- buttons ---------- */
.btn {
  display: inline-block;
  padding: 0.6rem 1rem;
  font: inherit;
  font-weight: 600;
  line-height: 1.2;
  color: var(--ink);
  background: #fff;
  border: 1px solid #aebcb6;
  border-radius: var(--radius-sm);
  text-decoration: none;
  cursor: pointer;
}
.btn:hover { background: #f3f6f5; }
.btn-primary { background: var(--accent); border-color: var(--accent); color: var(--accent-ink); }
.btn-primary:hover { background: #184d72; }
.btn-danger { color: var(--bad); border-color: #e2aaa5; }
.btn-danger:hover { background: var(--bad-bg); }
.btn-quiet { border-color: transparent; background: transparent; color: var(--accent); }
.btn-quiet:hover { background: #e4ecef; }
.btn-wide { width: 100%; padding: 0.85rem 1rem; font-size: 1.05rem; }
.span-all { grid-column: 1 / -1; }
.btn-small { padding: 0.3rem 0.6rem; font-size: 0.85rem; font-weight: 600; }
.fill-row { display: flex; flex-wrap: wrap; gap: 0.35rem; margin-top: 0.4rem; }
.danger-zone { border-color: #e2aaa5; }
.danger-zone h2 { color: var(--bad); }
.owe-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(9rem, 1fr)); gap: 0.75rem; margin: 1rem 0 0; }
.owe-grid div { border-top: 3px solid var(--rule); padding-top: 0.4rem; }
.owe-grid .owe-bad { border-top-color: var(--bad); }
.owe-grid .owe-good { border-top-color: var(--good); }
.owe-grid strong { display: block; font-size: 1.25rem; font-variant-numeric: tabular-nums; }
.owe-grid span { color: var(--muted); font-size: 0.85rem; }
td.bal { color: var(--muted); }
.btn:disabled { opacity: 0.55; cursor: not-allowed; }

.linkish { background: none; border: 0; padding: 0; font: inherit; color: var(--accent); text-decoration: underline; cursor: pointer; }
.linkish.danger { color: var(--bad); }
form.inline { display: inline; }
.button-row { display: flex; flex-wrap: wrap; gap: 0.75rem; align-items: center; margin-top: 0.5rem; }
.button-row form.inline { display: inline-flex; flex-wrap: wrap; gap: 0.75rem; align-items: center; }

.passkey-status { min-height: 1.5em; margin: 0.6rem 0 0; color: var(--muted); }
.passkey-status.bad { color: var(--bad); }

/* ---------- misc ---------- */
ul.plain { list-style: none; padding: 0; margin: 0; }
ul.plain li { padding: 0.4rem 0; border-bottom: 1px solid var(--rule); }
ul.plain li:last-child { border-bottom: 0; }

details { margin: 0.5rem 0; }
details > summary { cursor: pointer; color: var(--accent); }
details > summary span, details > summary strong { color: var(--ink); }
.inline-details > summary { font-size: 0.875rem; }
.inline-details[open] { min-width: 14rem; }

.copybox { display: grid; gap: 0.4rem; }
.copybox textarea { font-size: 0.95rem; background: #f7faf9; }
.copybox .btn { justify-self: start; }

.secret {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 1.2rem;
  letter-spacing: 0.08em;
  background: #f3f6f5;
  border: 1px dashed #aebcb6;
  border-radius: var(--radius-sm);
  padding: 0.75rem;
  word-break: break-all;
}
pre.mailbody { white-space: pre-wrap; font-size: 0.85rem; background: #f7faf9; padding: 0.75rem; border-radius: var(--radius-sm); }

svg.trend { width: 100%; height: auto; display: block; }
svg.trend .bar { fill: var(--accent); }
svg.trend .bar-neg { fill: var(--good); }
svg.trend .bar-label { fill: var(--muted); font-size: 12px; font-family: var(--font); }

@media (max-width: 640px) {
  h1 { font-size: 1.45rem; }
  .panel, .hero { padding: 1rem; }
  .nav { margin-left: 0; }
  .eq-op { padding-bottom: 1.2rem; }
}

@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; animation: none !important; }
}