:root {
  --bg: #f6f5f1;
  --card: #ffffff;
  --ink: #1d2321;
  --muted: #5f6b67;
  --line: #e2e0d8;
  --accent: #0f766e;
  --accent-soft: #d5ece8;
  --warn: #b45309;
  --bad: #b91c1c;
  --good: #15803d;
  --s1: #0f766e;
  --s2: #c2410c;
  --band: rgba(15, 118, 110, .14);
  --band2: rgba(15, 118, 110, .28);
  --shadow: 0 1px 2px rgba(0,0,0,.04), 0 4px 16px rgba(0,0,0,.04);
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #121615; --card: #1b201f; --ink: #e8ecea; --muted: #9aa7a3; --line: #2c3432;
    --accent: #2dd4bf; --accent-soft: #163a36; --warn: #f59e0b; --bad: #f87171; --good: #4ade80;
    --s1: #2dd4bf; --s2: #fb923c; --band: rgba(45,212,191,.13); --band2: rgba(45,212,191,.27);
    --shadow: none; color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --bg: #121615; --card: #1b201f; --ink: #e8ecea; --muted: #9aa7a3; --line: #2c3432;
  --accent: #2dd4bf; --accent-soft: #163a36; --warn: #f59e0b; --bad: #f87171; --good: #4ade80;
  --s1: #2dd4bf; --s2: #fb923c; --band: rgba(45,212,191,.13); --band2: rgba(45,212,191,.27);
  --shadow: none; color-scheme: dark;
}

* { box-sizing: border-box; }
body {
  margin: 0; background: var(--bg); color: var(--ink);
  font: 15px/1.65 -apple-system, BlinkMacSystemFont, "PingFang TC", "Noto Sans TC", "Microsoft JhengHei", sans-serif;
}
.wrap { max-width: 1080px; margin: 0 auto; padding: 0 16px; }
h1, h2, h3 { margin: 0 0 .5em; line-height: 1.3; }
h1 { font-size: 1.25rem; }
h2 { font-size: 1.15rem; }
h3 { font-size: 1rem; }
.mt { margin-top: 1.2em; }
.muted, .sub, .note, small { color: var(--muted); }

.top { background: var(--card); border-bottom: 1px solid var(--line); position: sticky; top: 0; z-index: 10; }
.top-inner { display: flex; align-items: center; justify-content: space-between; padding-top: 14px; }
.brand { display: flex; gap: 10px; align-items: center; color: var(--accent); }
.brand h1 { color: var(--ink); margin: 0; }
.sub { margin: 0; font-size: .82rem; }
.tabs { display: flex; gap: 4px; overflow-x: auto; padding-top: 10px; scrollbar-width: none; }
.tabs button {
  background: none; border: 0; border-bottom: 3px solid transparent; color: var(--muted);
  padding: 8px 12px; font: inherit; font-weight: 600; cursor: pointer; white-space: nowrap;
}
.tabs button[aria-selected="true"] { color: var(--accent); border-color: var(--accent); }

main { padding-top: 20px; padding-bottom: 20px; }
.panel { display: grid; gap: 16px; }
.panel[hidden] { display: none; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 14px; padding: 18px; box-shadow: var(--shadow); min-width: 0; }
.stack { display: grid; gap: 16px; align-content: start; min-width: 0; }
.grid-2 { display: grid; gap: 16px; grid-template-columns: minmax(0, 1fr) minmax(0, 1.3fr); }

button { font: inherit; cursor: pointer; }
.primary { background: var(--accent); color: var(--card); border: 0; border-radius: 10px; padding: 9px 16px; font-weight: 600; }
.ghost { background: none; border: 1px solid var(--line); color: var(--ink); border-radius: 10px; padding: 6px 12px; }
.small { font-size: .85rem; margin-top: 14px; }

.hero { background: var(--accent-soft); border-color: transparent; }
.hero p { max-width: 70ch; }
.steps { display: grid; gap: 16px; grid-template-columns: repeat(3, minmax(0, 1fr)); }
.step { position: relative; padding-top: 44px; }
.step .num {
  position: absolute; top: 14px; left: 18px; width: 26px; height: 26px; border-radius: 50%;
  background: var(--accent); color: var(--card); display: grid; place-items: center; font-weight: 700; font-size: .85rem;
}
.step ul { padding-left: 1.2em; margin: .4em 0; }
.tip { background: var(--bg); border-radius: 8px; padding: 8px 10px; font-size: .88rem; margin-bottom: 0; }
.glossary { display: grid; grid-template-columns: max-content 1fr; gap: 8px 16px; margin: 0; }
.glossary dt { font-weight: 700; color: var(--accent); }
.glossary dd { margin: 0; }
details { border-top: 1px solid var(--line); padding: 10px 0; }
details:last-child { padding-bottom: 0; }
summary { cursor: pointer; font-weight: 600; }
details p { margin: .5em 0 0; color: var(--muted); }

.fields { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
label { display: grid; gap: 4px; font-size: .86rem; font-weight: 600; }
label small { font-weight: 400; font-size: .76rem; }
input, select {
  font: inherit; font-weight: 400; color: var(--ink); background: var(--bg);
  border: 1px solid var(--line); border-radius: 8px; padding: 8px 10px; width: 100%; min-width: 0;
}
input:focus, select:focus { outline: 2px solid var(--accent); outline-offset: -1px; }

.kpis { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 12px; }
.kpi { padding: 14px; display: grid; gap: 2px; align-content: start; }
.kpi .lbl { font-size: .8rem; color: var(--muted); }
.kpi b { font-size: 1.45rem; font-variant-numeric: tabular-nums; line-height: 1.25; }
.kpi small { font-size: .78rem; }
.bar { height: 6px; background: var(--line); border-radius: 3px; margin-top: 6px; overflow: hidden; }
.bar i { display: block; height: 100%; width: 0; background: var(--accent); transition: width .3s; }

.miles { list-style: none; padding: 0; margin: 0; display: grid; gap: 10px; }
.miles li { display: grid; grid-template-columns: 22px 1fr auto; gap: 10px; align-items: center; font-size: .9rem; }
.miles .dot { width: 18px; height: 18px; border-radius: 50%; border: 2px solid var(--line); }
.miles .done .dot { background: var(--accent); border-color: var(--accent); }
.miles .amt { font-variant-numeric: tabular-nums; color: var(--muted); text-align: right; }
.miles small { display: block; font-size: .78rem; }

.chart-head { display: flex; justify-content: space-between; align-items: baseline; flex-wrap: wrap; gap: 6px 16px; }
.legend { display: flex; gap: 14px; flex-wrap: wrap; font-size: .8rem; color: var(--muted); }
.legend span { display: inline-flex; align-items: center; gap: 6px; }
.sw { width: 16px; height: 3px; display: inline-block; border-radius: 2px; }
.sw.s1 { background: var(--s1); }
.sw.s2 { background: var(--s2); }
.sw.dash { background: repeating-linear-gradient(90deg, var(--s2) 0 4px, transparent 4px 7px); }
.sw.band { background: var(--band); height: 10px; }
.sw.band2 { background: var(--band2); height: 10px; }
.chart { width: 100%; height: 300px; position: relative; }
.chart svg { width: 100%; height: 100%; display: block; overflow: visible; }
.chart text { fill: var(--muted); font-size: 11px; }
.chart .grid { stroke: var(--line); }
.note { font-size: .86rem; margin-bottom: 0; }

.tooltip {
  position: fixed; pointer-events: none; z-index: 50; background: var(--ink); color: var(--bg);
  padding: 6px 10px; border-radius: 8px; font-size: .8rem; line-height: 1.5; white-space: nowrap;
}

.latte-add { display: grid; grid-template-columns: 2fr 1fr 1fr auto; gap: 8px; margin: 12px 0; }
.table-wrap { overflow-x: auto; }
table.latte { width: 100%; border-collapse: collapse; font-size: .9rem; font-variant-numeric: tabular-nums; }
.latte th, .latte td { padding: 9px 8px; border-bottom: 1px solid var(--line); text-align: right; white-space: nowrap; }
.latte th:first-child, .latte td:first-child { text-align: left; }
.latte th { font-size: .78rem; color: var(--muted); font-weight: 600; }
.latte .del { background: none; border: 0; color: var(--muted); font-size: 1.1rem; }
.latte .delay { color: var(--s2); font-weight: 700; }
.summary { background: var(--accent-soft); border-color: transparent; }
.summary b { color: var(--accent); }

.good { color: var(--good); }
.warn { color: var(--warn); }
.bad { color: var(--bad); }

.foot { font-size: .78rem; color: var(--muted); padding-bottom: 32px; }

@media (max-width: 820px) {
  .grid-2, .steps { grid-template-columns: minmax(0, 1fr); }
}
@media (max-width: 520px) {
  .kpis { grid-template-columns: minmax(0, 1fr); }
  .kpi { grid-template-columns: 1fr auto; align-items: baseline; }
  .kpi small, .kpi .bar { grid-column: 1 / -1; }
  .fields { grid-template-columns: minmax(0, 1fr); }
  .latte-add { grid-template-columns: 1fr 1fr; }
  .latte-add input[name="name"] { grid-column: 1 / -1; }
  .glossary { grid-template-columns: 1fr; }
  .glossary dd { margin-bottom: 6px; }
  .chart { height: 240px; }
  .sub { display: none; }
}