/*
 * 主题：在 Telegram 里由 app.js 按 Telegram 的亮/暗设置写入 data-theme，
 * 在浏览器里不写 data-theme，跟随系统（prefers-color-scheme）。
 */
:root {
  --bg: #f2f3f5;
  --card: #ffffff;
  --text: #1d1e20;
  --muted: #8a8d93;
  --line: rgba(0, 0, 0, .07);
  --seg: #e6e7ea;
  --seg-active: #ffffff;
  --up: #e5534b;    /* 比上期多花 */
  --down: #1f9d63;  /* 比上期少花 */
  --trend: #e5534b;
  --expense: #e5534b;
  --backdrop: rgba(0, 0, 0, .40);
  color-scheme: light;
}
:root[data-theme="dark"] {
  --bg: #111214; --card: #1c1d20; --text: #e9e9ea; --muted: #8b8d93; --line: rgba(255, 255, 255, .08);
  --seg: #1c1d20; --seg-active: #2c2d31; --up: #f0524f; --down: #2ec27e;
  --trend: #e5534b; --expense: #f0645f; --backdrop: rgba(0, 0, 0, .60);
  color-scheme: dark;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme]) {
    --bg: #111214; --card: #1c1d20; --text: #e9e9ea; --muted: #8b8d93; --line: rgba(255, 255, 255, .08);
    --seg: #1c1d20; --seg-active: #2c2d31; --up: #f0524f; --down: #2ec27e;
    --trend: #e5534b; --expense: #f0645f; --backdrop: rgba(0, 0, 0, .60);
    color-scheme: dark;
  }
}

* { box-sizing: border-box; }
html, body { margin: 0; background: var(--bg); color: var(--text); }
body {
  font: 15px/1.4 -apple-system, BlinkMacSystemFont, "PingFang SC", "Helvetica Neue", sans-serif;
  padding: 0 12px calc(16px + env(safe-area-inset-bottom));
  -webkit-tap-highlight-color: transparent;
}
body.locked { overflow: hidden; }
button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }
b { font-variant-numeric: tabular-nums; }

.top { position: sticky; top: 0; z-index: 5; background: var(--bg); padding: 12px 0 8px; text-align: center; }
.seg { display: inline-flex; background: var(--seg); border-radius: 10px; padding: 3px; }
.seg button { padding: 6px 22px; border-radius: 8px; color: var(--muted); }
.seg button.active { background: var(--seg-active); color: var(--text); font-weight: 600; box-shadow: 0 1px 2px rgba(0, 0, 0, .08); }
.nav { display: flex; align-items: center; justify-content: center; gap: 28px; margin-top: 10px; font-size: 19px; }
.nav button { font-size: 26px; line-height: 1; padding: 0 8px; }
.nav button:disabled { opacity: .25; cursor: default; }
#cursor { min-width: 136px; font-variant-numeric: tabular-nums; }

.card { background: var(--card); border-radius: 16px; padding: 14px 16px; margin-top: 12px; }
.card h2 { margin: 0 0 10px; font-size: 16px; text-align: center; font-weight: 600; }

.overview .grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px 8px; text-align: center; }
.overview .k { display: block; color: var(--muted); font-size: 13px; }
.overview b { font-size: 20px; }
#change.up { color: var(--up); }
#change.down { color: var(--down); }

.chart { width: 100%; height: 200px; }
.chart.pie { height: 260px; }
.hint { margin: 0 0 6px; text-align: center; color: var(--muted); font-size: 12px; }

.cats { list-style: none; margin: 0; padding: 0; }
.cats li { display: grid; grid-template-columns: 40px 1fr auto; align-items: center; gap: 0 12px; padding: 10px 0; cursor: pointer; }
.cats li:active { opacity: .6; }
.icon { width: 40px; height: 40px; border-radius: 50%; display: grid; place-items: center; color: #fff; font-weight: 600; font-size: 17px; grid-row: span 2; }
.cats .name { font-size: 16px; }
.cats .pct { color: var(--muted); font-size: 13px; margin-left: 6px; }
.cats .right { display: flex; gap: 8px; align-items: center; justify-content: flex-end; }
.cats .amt { font-size: 16px; min-width: 64px; text-align: right; }
.diff { font-size: 12px; padding: 1px 6px; border-radius: 6px; font-variant-numeric: tabular-nums; }
.diff.up { color: var(--up); background: color-mix(in srgb, var(--up) 14%, transparent); }
.diff.down { color: var(--down); background: color-mix(in srgb, var(--down) 14%, transparent); }
.bar { grid-column: 2 / 4; height: 4px; border-radius: 2px; background: var(--line); margin-top: 6px; overflow: hidden; }
.bar i { display: block; height: 100%; border-radius: 2px; }

.status { position: fixed; inset: 40% 16px auto; text-align: center; color: var(--muted); }

/* ---------- 分类明细底部弹窗 ---------- */
.backdrop { position: fixed; inset: 0; z-index: 10; background: var(--backdrop); opacity: 0; pointer-events: none; transition: opacity .2s; }
.backdrop.open { opacity: 1; pointer-events: auto; }
.sheet {
  position: fixed; left: 0; right: 0; bottom: 0; z-index: 11; max-height: 72vh;
  display: flex; flex-direction: column; background: var(--card); border-radius: 18px 18px 0 0;
  padding-bottom: env(safe-area-inset-bottom); transform: translateY(100%); transition: transform .25s ease;
}
.sheet.open { transform: none; }
.drag-area { touch-action: none; cursor: grab; padding: 0 16px; }
.grip { width: 36px; height: 4px; border-radius: 2px; background: var(--muted); opacity: .4; margin: 8px auto 4px; }
.sheet-head { display: flex; align-items: center; justify-content: space-between; padding: 8px 0 12px; border-bottom: 1px solid var(--line); }
.sheet-head b { font-size: 18px; }
.sort { display: flex; gap: 8px; }
.sort button { border: 1px solid var(--line); border-radius: 8px; padding: 4px 10px; font-size: 14px; color: var(--muted); }
.sort button.active { color: var(--text); border-color: var(--muted); }
.sort button.active::after { content: ' ↓'; }
.sort button.active.asc::after { content: ' ↑'; }
/* 左右留白放在列表内部，滚动条才能贴着屏幕边缘 */
.tx {
  list-style: none; margin: 0; padding: 0 16px 12px; overflow-y: auto; overscroll-behavior: contain;
  scrollbar-width: thin; scrollbar-color: color-mix(in srgb, var(--muted) 45%, transparent) transparent;
}
.tx li { display: grid; grid-template-columns: 1fr auto; align-items: center; gap: 2px 12px; padding: 12px 0 12px 14px; border-bottom: 1px solid var(--line); position: relative; }
.tx li::before { content: ''; position: absolute; left: 0; top: 50%; width: 6px; height: 6px; margin-top: -3px; border-radius: 50%; background: var(--dot, var(--expense)); }
.tx .t { font-size: 16px; }
.tx .s { grid-column: 1; color: var(--muted); font-size: 13px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.tx .a { grid-row: 1 / 3; grid-column: 2; font-size: 17px; color: var(--expense); }
.tx .a.refund { color: var(--down); }
.tx .empty { color: var(--muted); padding-left: 0; }
.tx .empty::before { display: none; }