:root {
  /* Light only, beige: sand page, cream cards, warm brown ink. */
  color-scheme: light;
  --page: #e6dccb;
  --surface: #f4ecdd;
  --ink: #2b241b;
  --ink-2: #5f5444;
  --muted: #8a7d69;
  --grid: #e4d9c5;
  --axis: #c9bba2;
  --border: rgba(43, 36, 27, 0.10);
  --accent: #2a78d6;
  --good: #006300;
  --bad: #b42323;
  --s1: #2a78d6; --s2: #eb6834; --s3: #1baf7a; --s4: #eda100;
  --s5: #e87ba4; --s6: #008300; --s7: #4a3aa7; --s8: #e34948;
  /* Diverging pair for increases / decreases; totals use --muted as the neutral. */
  --up: #e34948; --down: #2a78d6;
  --radius: 12px;
  font-family: system-ui, -apple-system, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }
body { margin: 0; background: var(--page); color: var(--ink); line-height: 1.45; }
h1, h2 { margin: 0; font-weight: 600; }
h1 { font-size: 1.35rem; }
h2 { font-size: 1rem; }
code { font-size: 0.9em; }
.muted, .sub { color: var(--ink-2); font-size: 0.875rem; margin: 2px 0 0; }

.top, main { max-width: 1180px; margin: 0 auto; padding: 0 16px; }
.top { display: flex; justify-content: space-between; align-items: center; gap: 16px; padding-top: 24px; padding-bottom: 16px; flex-wrap: wrap; }
main { padding-bottom: 48px; }

.btn {
  display: inline-flex; align-items: center; gap: 6px; cursor: pointer; font: inherit; font-size: 0.875rem; font-weight: 500;
  padding: 8px 14px; border-radius: 8px; border: 1px solid var(--border); background: var(--surface); color: var(--ink);
}
.btn:hover { border-color: var(--axis); }
.btn.primary { background: var(--accent); color: #fff; border-color: transparent; }
.btn:disabled { opacity: 0.6; cursor: progress; }
.actions { display: flex; gap: 8px; flex-wrap: wrap; }
.btn.sync { color: var(--ink-2); }
.btn.sync::before { content: ""; width: 8px; height: 8px; border-radius: 50%; background: var(--muted); }
.btn.sync.on::before { background: #0ca30c; }

dialog { border: 1px solid var(--border); border-radius: var(--radius); background: var(--surface); color: var(--ink); padding: 24px; width: min(520px, calc(100% - 32px)); box-shadow: 0 12px 40px rgba(43,36,27,0.25); }
dialog::backdrop { background: rgba(43, 36, 27, 0.35); }
dialog form { margin-top: 0; }
dialog .steps { margin: 0; padding-left: 20px; font-size: 0.875rem; color: var(--ink-2); display: grid; gap: 4px; }
dialog a { color: var(--accent); }
dialog input[type=password] { width: 100%; font-family: ui-monospace, Consolas, monospace; }
.small { font-size: 0.8125rem; margin: -4px 0 0; }
.dialog-actions { display: flex; gap: 8px; align-items: center; }
.dialog-actions .spacer { flex: 1; }
.link { font: inherit; font-size: 0.8125rem; background: none; border: 0; padding: 0; cursor: pointer; text-decoration: underline; }
.link.danger { color: var(--bad); }
.btn:focus-visible, select:focus-visible, input:focus-visible, .seg button:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

.card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 20px; margin-bottom: 16px; min-width: 0; }
.card.narrow { max-width: 460px; margin: 48px auto; }
.card-head { display: flex; justify-content: space-between; align-items: flex-start; gap: 12px; margin-bottom: 12px; }
.grid2 { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.grid2 > .card { margin-bottom: 0; }
.grid2 { margin-bottom: 16px; }
@media (max-width: 820px) { .grid2 { grid-template-columns: 1fr; } }

.chart { position: relative; height: 300px; }
.chart.tall { height: 340px; }

form { display: grid; gap: 12px; margin-top: 16px; }
input[type=password], select {
  font: inherit; font-size: 0.875rem; padding: 8px 10px; border-radius: 8px; border: 1px solid var(--border); background: var(--page); color: var(--ink);
}
.check { display: flex; gap: 8px; align-items: center; font-size: 0.875rem; color: var(--ink-2); }
.error { color: var(--bad); margin: 0; font-size: 0.875rem; }

.filters { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 16px; }
.seg { display: inline-flex; background: var(--surface); border: 1px solid var(--border); border-radius: 8px; padding: 3px; flex-wrap: wrap; }
.seg button { font: inherit; font-size: 0.8125rem; border: 0; background: none; color: var(--ink-2); padding: 6px 12px; border-radius: 6px; cursor: pointer; }
.seg button:hover { background: var(--page); }
.month-picker { display: inline-flex; align-items: center; gap: 2px; background: var(--surface); border: 1px solid var(--border); border-radius: 8px; padding: 3px; margin-left: auto; }
.month-picker .picker-label { font-size: 0.8125rem; color: var(--ink-2); padding: 0 8px 0 9px; }
.month-picker .picker-month { font-size: 0.875rem; font-weight: 600; min-width: 8.5em; text-align: center; }
.month-picker button { font: inherit; font-size: 1.1rem; line-height: 1; border: 0; background: none; color: var(--ink); width: 30px; height: 28px; border-radius: 6px; cursor: pointer; }
.month-picker button:hover:not(:disabled) { background: var(--page); }
.month-picker button:disabled { color: var(--axis); cursor: default; }
.month-picker button:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
@media (max-width: 820px) { .month-picker { margin-left: 0; } }
.seg button[aria-pressed=true] { background: var(--page); color: var(--ink); font-weight: 600; box-shadow: inset 0 0 0 1px var(--border); }

.tiles { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin-bottom: 16px; }
/* Narrower: the latest-bill tile takes a full row, the rest pair up below; an odd one out spans the row. */
@media (max-width: 820px) {
  .tiles { grid-template-columns: 1fr 1fr; }
  .tile.hero { grid-column: 1 / -1; }
  .tile:not(.hero):last-child:nth-child(even) { grid-column: 1 / -1; }
}
.tile { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 16px 20px; min-width: 0; }
.tile .label { font-size: 0.8125rem; color: var(--ink-2); }
.tile .value { font-size: 1.75rem; font-weight: 600; margin-top: 4px; letter-spacing: -0.01em; }
.tile.hero .value { font-size: 2.25rem; }
.tile .delta { font-size: 0.8125rem; color: var(--ink-2); margin-top: 2px; }
.delta .up { color: var(--bad); font-weight: 600; }
.delta .down { color: var(--good); font-weight: 600; }

.legend { list-style: none; display: flex; flex-wrap: wrap; gap: 6px 16px; padding: 0; margin: 0 0 12px; font-size: 0.8125rem; color: var(--ink-2); }
.legend li { display: inline-flex; align-items: center; gap: 6px; }
.legend .sw { width: 10px; height: 10px; border-radius: 3px; flex: none; }
.legend li { transition: opacity 0.15s; }
.legend li.dim { opacity: 0.35; }
.legend .ln { width: 14px; height: 2px; border-radius: 1px; flex: none; }

.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: 0.8125rem; }
th, td { padding: 8px 10px; text-align: right; border-bottom: 1px solid var(--grid); white-space: nowrap; font-variant-numeric: tabular-nums; }
th { color: var(--ink-2); font-weight: 500; }
th:first-child, td:first-child { text-align: left; }
tbody tr { cursor: pointer; }
tbody tr:hover { background: var(--page); }
tbody tr.sel { background: var(--page); box-shadow: inset 3px 0 0 var(--accent); }
td.total { font-weight: 600; color: var(--ink); }
.badge { display: inline-block; font-size: 0.6875rem; padding: 1px 6px; border-radius: 4px; border: 1px solid var(--border); color: var(--muted); margin-left: 6px; }

.note { font-size: 0.75rem; color: var(--muted); margin: 12px 0 0; }
.note a { color: inherit; }

.price-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
@media (max-width: 820px) { .price-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 520px) { .price-grid { grid-template-columns: 1fr; } }
.price { border: 1px solid var(--grid); border-radius: 10px; padding: 12px 14px 8px; min-width: 0; }
.price .label { font-size: 0.8125rem; color: var(--ink-2); }
.price .value { font-size: 1.25rem; font-weight: 600; margin-top: 2px; }
.price .value small { font-size: 0.75rem; font-weight: 400; color: var(--ink-2); margin-left: 2px; }
.price .delta { font-size: 0.75rem; color: var(--ink-2); }
.price .spark { position: relative; height: 72px; margin-top: 6px; }

.foot { text-align: center; margin-top: 24px; }
.foot button { font: inherit; background: none; border: 0; color: var(--accent); cursor: pointer; padding: 0; text-decoration: underline; }

.drop-overlay { position: fixed; inset: 0; background: color-mix(in srgb, var(--page) 85%, transparent); display: grid; place-items: center; z-index: 10; }
.drop-overlay div { border: 2px dashed var(--accent); border-radius: var(--radius); padding: 48px 64px; font-weight: 600; background: var(--surface); }
.toast { position: fixed; bottom: 24px; left: 50%; transform: translateX(-50%); background: var(--ink); color: var(--surface); padding: 10px 16px; border-radius: 8px; font-size: 0.875rem; z-index: 11; max-width: calc(100% - 32px); }

.tip {
  position: fixed; pointer-events: none; z-index: 12; background: var(--surface); color: var(--ink); border: 1px solid var(--border);
  border-radius: 8px; padding: 8px 10px; font-size: 0.75rem; box-shadow: 0 4px 16px rgba(43,36,27,0.12); min-width: 140px; max-width: 280px;
}
.tip .t { color: var(--ink-2); margin-bottom: 4px; }
.tip .r { display: flex; align-items: center; gap: 8px; padding: 1px 0; }
.tip .r .ln { width: 12px; height: 2px; border-radius: 1px; flex: none; }
.tip .r b { font-variant-numeric: tabular-nums; min-width: 56px; }
.tip .r span { color: var(--ink-2); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.tip .r.hl { background: var(--page); margin: 0 -6px; padding: 1px 6px; border-radius: 4px; }
.tip .r.hl span { color: var(--ink); font-weight: 600; }
.tip .sum { border-top: 1px solid var(--grid); margin-top: 4px; padding-top: 4px; }