:root {
  --bg: #f7f8fa;
  --panel: #ffffff;
  --ink: #1a2230;
  --muted: #5e6b7e;
  --line: #e2e6ed;
  --accent: #1f6feb;
  --accent2: #d97706;
  --good: #15803d;
  --bad: #b91c1c;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font: 14px/1.5 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  color: var(--ink);
  background: var(--bg);
  padding: 0 0 4rem;
}
header { padding: 1.5rem 2rem 0.5rem; }
h1 { font-size: 1.4rem; margin: 0; }
h2 { font-size: 1.05rem; margin: 0; }
h3 { font-size: 0.95rem; margin: 1.5rem 0 0.5rem; color: var(--muted); text-transform: uppercase; letter-spacing: 0.04em; }
.tag { font-size: 0.7rem; background: var(--ink); color: #fff; border-radius: 4px; padding: 2px 6px; vertical-align: middle; font-weight: 600; }
.sub { color: var(--muted); margin: 0.25rem 0 0; max-width: 70ch; }
.hint { color: var(--muted); font-size: 0.85rem; margin: 0.25rem 0 0.75rem; }

section {
  background: var(--panel);
  margin: 1rem 2rem;
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 1rem 1.25rem 1.25rem;
}
.sec-head { display: flex; align-items: center; justify-content: space-between; gap: 1rem; }
.actions { display: flex; gap: 0.5rem; }

button {
  font: inherit; font-weight: 600; cursor: pointer;
  background: var(--accent); color: #fff; border: 0; border-radius: 6px; padding: 0.4rem 0.8rem;
}
button.ghost { background: transparent; color: var(--accent); border: 1px solid var(--line); }
button:hover { filter: brightness(0.96); }

.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; margin-top: 0.5rem; font-variant-numeric: tabular-nums; }
th, td { text-align: right; padding: 0.4rem 0.5rem; border-bottom: 1px solid var(--line); white-space: nowrap; }
th:first-child, td:first-child, th:nth-child(2), td:nth-child(2) { text-align: left; }
thead th { color: var(--muted); font-weight: 600; font-size: 0.8rem; border-bottom: 2px solid var(--line); }
tbody tr:hover { background: #fafbfd; }
td input, td select { width: 100%; min-width: 70px; border: 1px solid transparent; background: transparent; font: inherit; text-align: inherit; padding: 0.2rem; border-radius: 4px; }
td input:focus { border-color: var(--accent); background: #fff; outline: none; }
td.computed { color: var(--muted); }
.row-del { background: transparent; color: var(--bad); border: 0; padding: 0 0.3rem; font-size: 1rem; }

.config-grid { display: flex; flex-wrap: wrap; gap: 0.75rem 1.25rem; margin: 0.5rem 0; }
.config-grid label { display: flex; flex-direction: column; font-size: 0.8rem; color: var(--muted); gap: 0.2rem; }
.config-grid input, .config-grid select { font: inherit; color: var(--ink); padding: 0.35rem 0.5rem; border: 1px solid var(--line); border-radius: 6px; min-width: 120px; }

.rung-picker { display: flex; flex-wrap: wrap; gap: 0.5rem; margin-top: 0.75rem; }
.rung-picker .rung { border: 1px solid var(--line); border-radius: 8px; padding: 0.5rem 0.6rem; min-width: 150px; }
.rung-picker .rung label { font-size: 0.72rem; color: var(--muted); display: block; }
.rung-picker .rung select { width: 100%; font: inherit; padding: 0.25rem; border: 1px solid var(--line); border-radius: 5px; margin-top: 0.2rem; }

.cards { display: flex; flex-wrap: wrap; gap: 0.75rem; margin: 0.75rem 0; }
.card { border: 1px solid var(--line); border-radius: 8px; padding: 0.6rem 0.9rem; min-width: 130px; }
.card .k { font-size: 0.72rem; color: var(--muted); text-transform: uppercase; letter-spacing: 0.03em; }
.card .v { font-size: 1.25rem; font-weight: 700; margin-top: 0.15rem; }
.card .v.good { color: var(--good); }
.card .v.bad { color: var(--bad); }

.chart-wrap { position: relative; height: 320px; margin: 0.5rem 0 1rem; }
footer { color: var(--muted); font-size: 0.8rem; text-align: center; padding: 1rem 2rem; max-width: 80ch; margin: 0 auto; }
.empty { color: var(--muted); font-style: italic; padding: 1rem 0; }

/* account wrapper switch */
#account-bar { padding: 0.85rem 1.25rem; }
.acct-row { display: flex; align-items: center; gap: 1rem; flex-wrap: wrap; }
.acct-label { font-weight: 700; font-size: 0.9rem; }
.seg { display: inline-flex; border: 1px solid var(--line); border-radius: 8px; overflow: hidden; }
.seg button { background: var(--panel); color: var(--ink); border: 0; border-right: 1px solid var(--line); border-radius: 0; padding: 0.45rem 1rem; font-weight: 600; }
.seg button:last-child { border-right: 0; }
.seg button.active { background: var(--accent); color: #fff; }
.seg button:hover:not(.active) { background: #eef2f8; }
#acct-note { margin: 0.6rem 0 0; }