:root {
  --bg: #f6f4ef;
  --card: #ffffff;
  --ink: #23201b;
  --sub: #6b645a;
  --line: #e2ddd3;
  --accent: #c2410c;
  --accent-soft: #fde7da;
  --elec: #2563eb;
  --kero: #c2410c;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #1b1916;
    --card: #26231f;
    --ink: #eeeae3;
    --sub: #b3aa9c;
    --line: #3b3630;
    --accent: #fb923c;
    --accent-soft: #3a2a1f;
    --elec: #60a5fa;
    --kero: #fb923c;
  }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: system-ui, -apple-system, "Hiragino Sans", "Yu Gothic UI", "Meiryo", sans-serif;
  line-height: 1.7;
}
.top, main, .foot { max-width: 760px; margin: 0 auto; padding: 0 16px; }
.top { padding-top: 24px; }
h1 { font-size: 1.6rem; margin: 0 0 4px; }
h2 { font-size: 1.15rem; margin: 0 0 12px; }
h3 { font-size: 1rem; margin: 18px 0 4px; }
.lead { color: var(--sub); margin: 0 0 16px; }
.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 16px;
  margin: 0 0 16px;
}
.grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px 16px; }
@media (max-width: 560px) { .grid { grid-template-columns: 1fr; } }
label { display: block; font-weight: 600; font-size: 0.95rem; }
label small { display: block; font-weight: 400; color: var(--sub); font-size: 0.8rem; line-height: 1.5; margin-top: 2px; }
input, select {
  width: 100%;
  font: inherit;
  font-size: 16px;
  padding: 8px 10px;
  margin-top: 4px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--bg);
  color: var(--ink);
}
button {
  font: inherit;
  font-size: 0.95rem;
  padding: 8px 14px;
  border-radius: 8px;
  border: 1px solid var(--accent);
  background: var(--accent-soft);
  color: var(--ink);
  cursor: pointer;
}
button.remove { border-color: var(--line); background: transparent; color: var(--sub); padding: 4px 10px; font-size: 0.85rem; }
.hint { color: var(--sub); font-size: 0.88rem; margin: 0 0 12px; }
.device {
  border: 1px solid var(--line);
  border-left: 6px solid var(--elec);
  border-radius: 10px;
  padding: 12px;
  margin: 0 0 12px;
}
.device.kero { border-left-color: var(--kero); }
.device-head { display: flex; justify-content: space-between; align-items: center; gap: 8px; margin-bottom: 8px; }
.device-head .kind { font-size: 0.85rem; color: var(--sub); white-space: nowrap; }
.device .grid { grid-template-columns: repeat(3, 1fr); }
@media (max-width: 560px) { .device .grid { grid-template-columns: 1fr 1fr; } }
.row-buttons { display: flex; flex-wrap: wrap; gap: 8px; }
table { width: 100%; border-collapse: collapse; font-size: 0.92rem; }
th, td { text-align: right; padding: 6px 4px; border-bottom: 1px solid var(--line); }
th:first-child, td:first-child { text-align: left; }
th { color: var(--sub); font-weight: 600; font-size: 0.82rem; }
.table-wrap { overflow-x: auto; }
.bars { margin-top: 12px; }
.bar-row { display: grid; grid-template-columns: 7.5em 1fr 5.5em; align-items: center; gap: 8px; margin: 6px 0; font-size: 0.88rem; }
.bar-row .name { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.bar { height: 14px; border-radius: 7px; background: var(--elec); min-width: 2px; }
.bar.kero { background: var(--kero); }
.bar-row .val { text-align: right; }
.empty { color: var(--sub); }
.explain p, .explain li { font-size: 0.93rem; }
.foot { color: var(--sub); font-size: 0.85rem; padding-bottom: 32px; }
a { color: var(--accent); }