:root {
  --bg: #f6f6f4; --card: #fff; --ink: #14161c; --muted: #6a7080;
  --line: #e3e4e8; --accent: #2f6df6; --good: #148a5a; --warn: #b2600a; --bad: #c33a2e;
  --radius: 14px; --shadow: 0 1px 2px rgba(16,18,24,.06), 0 8px 24px rgba(16,18,24,.06);
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #11131a; --card: #191c25; --ink: #eceef4; --muted: #949bad;
    --line: #272b37; --accent: #6b9bff; --good: #3fcf8e; --warn: #e2a33f; --bad: #ff6b5e;
    --shadow: 0 1px 2px rgba(0,0,0,.4), 0 8px 24px rgba(0,0,0,.35);
  }
}
:root[data-theme="dark"] {
  --bg: #11131a; --card: #191c25; --ink: #eceef4; --muted: #949bad;
  --line: #272b37; --accent: #6b9bff; --good: #3fcf8e; --warn: #e2a33f; --bad: #ff6b5e;
}

* { box-sizing: border-box; }
/* the hidden attribute has to beat the display rules below it */
[hidden] { display: none !important; }
html, body { margin: 0; }
body {
  background: var(--bg); color: var(--ink); font: 16px/1.5 ui-sans-serif, -apple-system, "Segoe UI", Roboto, sans-serif;
  -webkit-text-size-adjust: 100%; padding-bottom: env(safe-area-inset-bottom);
}
h1 { font-size: 1.15rem; margin: 0; letter-spacing: -.01em; }
h2 { font-size: .82rem; text-transform: uppercase; letter-spacing: .07em; color: var(--muted); margin: 0 0 10px; font-weight: 600; }
.muted { color: var(--muted); }
.err { color: var(--bad); font-size: .9rem; }

/* login */
.gate { min-height: 100svh; display: grid; place-items: center; padding: 16px; }
.gate form {
  background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
  box-shadow: var(--shadow); padding: 28px 22px; width: min(360px, 100%); display: grid; gap: 12px;
}
.gate h1 { font-size: 1.3rem; }
.gate p { margin: 0; font-size: .92rem; }

/* shell */
.app { max-width: 680px; margin: 0 auto; padding: 16px 16px 56px; display: grid; gap: 18px; }
.top { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding-top: 6px; }

input, select, button {
  font: inherit; color: inherit; border-radius: 10px; border: 1px solid var(--line);
  background: var(--card); padding: 11px 12px;
}
input, select { width: 100%; }
input:focus-visible, select:focus-visible, button:focus-visible { outline: 2px solid var(--accent); outline-offset: 1px; }
button { cursor: pointer; border-radius: 10px; padding: 11px 14px; font-weight: 550; }
button:hover { border-color: var(--muted); }
.primary { background: var(--accent); border-color: var(--accent); color: #fff; }
.primary:hover { filter: brightness(1.07); border-color: var(--accent); }
.ghost { background: none; border-color: transparent; color: var(--muted); }
.warn { color: var(--warn); }
.danger { color: var(--bad); }

/* headline balance */
.hero {
  background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
  box-shadow: var(--shadow); padding: 22px 18px; text-align: center;
}
.hero .who { color: var(--muted); font-size: .95rem; }
.hero .amt { font-size: 2.6rem; font-weight: 650; letter-spacing: -.03em; margin: 4px 0 2px; font-variant-numeric: tabular-nums; }
.hero .since { color: var(--muted); font-size: .82rem; }
.hero.level .amt { color: var(--good); font-size: 1.7rem; }

.actions { display: flex; gap: 8px; }
.actions button { flex: 1; }
.actions.wrap { flex-wrap: wrap; }

/* summary */
.summary { display: grid; grid-template-columns: repeat(2, 1fr); gap: 8px; }
.tile {
  background: var(--card); border: 1px solid var(--line); border-radius: 12px; padding: 12px 14px;
}
.tile .k { color: var(--muted); font-size: .78rem; text-transform: uppercase; letter-spacing: .05em; }
.tile .v { font-size: 1.22rem; font-weight: 600; font-variant-numeric: tabular-nums; margin-top: 2px; }

/* entry list */
.list { display: grid; gap: 6px; }
.mhead { color: var(--muted); font-size: .78rem; text-transform: uppercase; letter-spacing: .06em; margin: 10px 0 2px; }
.item {
  display: grid; grid-template-columns: 52px 1fr auto; align-items: center; gap: 10px;
  background: var(--card); border: 1px solid var(--line); border-radius: 12px; padding: 10px 12px;
  width: 100%; text-align: left;
}
.item:hover { border-color: var(--muted); }
.item .d { color: var(--muted); font-size: .78rem; font-variant-numeric: tabular-nums; }
.item .t { font-weight: 550; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.item .s { color: var(--muted); font-size: .78rem; }
.item .a { font-variant-numeric: tabular-nums; font-weight: 600; text-align: right; white-space: nowrap; }
.item.xfer { border-style: dashed; }
.item.xfer .a { color: var(--accent); }
.item.personal .a { color: var(--muted); }
.empty { color: var(--muted); text-align: center; padding: 24px; }

.rules ul { margin: 0; padding-left: 18px; color: var(--muted); font-size: .9rem; }
.rules li { margin-bottom: 4px; }
.history .item { background: none; }

/* sheet */
.sheet {
  position: fixed; inset: 0; background: rgba(10,12,18,.5); display: grid; align-items: end;
  justify-items: center; padding: 0; z-index: 10; overflow-y: auto;
}
@media (min-width: 560px) { .sheet { align-items: center; padding: 16px; } }
.sheet .card {
  background: var(--card); border: 1px solid var(--line); border-radius: var(--radius) var(--radius) 0 0;
  width: min(480px, 100%); padding: 20px 16px calc(20px + env(safe-area-inset-bottom));
  display: grid; gap: 12px; box-shadow: var(--shadow);
}
@media (min-width: 560px) { .sheet .card { border-radius: var(--radius); } }
.sheet label { display: grid; gap: 5px; font-size: .82rem; color: var(--muted); }
.sheet h2 { color: var(--ink); font-size: 1.05rem; text-transform: none; letter-spacing: -.01em; }
.row { display: grid; gap: 5px; }
.lbl { font-size: .82rem; color: var(--muted); }
.seg { display: flex; gap: 6px; }
.seg button { flex: 1; background: var(--bg); }
.seg button[aria-pressed="true"] { background: var(--accent); border-color: var(--accent); color: #fff; }
.hint { color: var(--muted); font-size: .82rem; margin: 0; }
.formrow { display: flex; gap: 8px; margin-top: 4px; }
.formrow button { flex: 1; }

.toast {
  position: fixed; left: 50%; transform: translateX(-50%); bottom: calc(18px + env(safe-area-inset-bottom));
  background: var(--ink); color: var(--bg); padding: 10px 16px; border-radius: 999px;
  font-size: .9rem; z-index: 20; box-shadow: var(--shadow);
}