:root {
  --bg: #fff7f2;
  --card: #ffffff;
  --text: #1f1f1f;
  --muted: #7a7a7a;
  --line: #eee4dc;
  --primary: #ff7a2f;
  --primary-dark: #e8631a;
  --danger: #e5484d;
  --ok: #2fb46a;
  --warn: #e3a008;
  --chip: #f2ece7;
  --log-bg: #1b1b1f;
  --log-fg: #b9f0b9;
  --radius: 14px;
  color-scheme: light dark;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #141416;
    --card: #1f2024;
    --text: #f1f1f1;
    --muted: #9a9a9a;
    --line: #2d2e33;
    --chip: #2b2c31;
  }
}
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: -apple-system, "Malgun Gothic", "Apple SD Gothic Neo", "Noto Sans KR", system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
  -webkit-tap-highlight-color: transparent;
  padding-bottom: env(safe-area-inset-bottom);
}
.topbar {
  position: sticky; top: 0; z-index: 10;
  display: flex; align-items: center; justify-content: space-between;
  padding: 10px 14px; padding-top: calc(10px + env(safe-area-inset-top));
  background: var(--card); border-bottom: 1px solid var(--line);
}
.brand { display: flex; align-items: center; gap: 8px; font-weight: 700; font-size: 1.15rem; }
.logo { width: 28px; height: 28px; border-radius: 7px; }
.conn { display: flex; align-items: center; gap: 8px; }
.badge { font-size: .78rem; padding: 4px 9px; border-radius: 999px; background: var(--chip); color: var(--muted); }
.badge.on { background: #dff5e8; color: #1e7e46; }
.badge.busy { background: #fff1d6; color: #9a6400; }
.badge.off { background: var(--chip); color: var(--muted); }

.container { max-width: 520px; margin: 0 auto; padding: 12px 12px 40px; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 14px; margin-bottom: 12px; }
.card-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 8px; }
h2 { font-size: 1rem; margin: 0; }
h3 { font-size: .85rem; margin: 12px 0 6px; color: var(--muted); }
details.card > summary { list-style: none; cursor: pointer; display: flex; align-items: center; justify-content: space-between; }
details.card > summary::-webkit-details-marker { display: none; }
details.card > summary::after { content: "▾"; color: var(--muted); }
details.card[open] > summary::after { content: "▴"; }
details.card[open] > summary { margin-bottom: 8px; }

.notice { background: #fff1d6; color: #7a4d00; border-radius: 10px; padding: 10px 12px; font-size: .9rem; margin-bottom: 12px; }

.weight-row { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.weight { font-size: 3.4rem; font-weight: 800; letter-spacing: -1px; line-height: 1; font-variant-numeric: tabular-nums; }
.weight .unit { font-size: 1.2rem; font-weight: 600; margin-left: 4px; color: var(--muted); }
.weight-side { text-align: right; }
.dot-row { display: flex; align-items: center; justify-content: flex-end; gap: 6px; font-size: .85rem; color: var(--muted); margin-bottom: 6px; }
.dot { width: 9px; height: 9px; border-radius: 50%; background: #bbb; }
.dot.on { background: var(--ok); }
.chips { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: 4px; }
.chip { font-size: .72rem; padding: 3px 8px; border-radius: 999px; background: var(--chip); color: var(--muted); }
.chip.on { background: #dff5e8; color: #1e7e46; }
.chip.warn { background: #fff1d6; color: #9a6400; }
.chip.err { background: #fde2e2; color: #a12626; }

.state { font-size: .85rem; color: var(--muted); }
.state.active { color: var(--primary); font-weight: 700; }
.progress { height: 10px; background: var(--chip); border-radius: 5px; overflow: hidden; margin: 4px 0 6px; }
.progress div { height: 100%; width: 0; background: var(--primary); transition: width .25s; }

.presets { display: flex; gap: 6px; align-items: center; margin: 10px 0; flex-wrap: wrap; }
.preset { flex: 1; min-width: 52px; padding: 9px 0; border: 1px solid var(--line); background: var(--card); color: var(--text); border-radius: 10px; font-size: .95rem; cursor: pointer; }
.preset.active { background: var(--primary); border-color: var(--primary); color: #fff; font-weight: 700; }
input[type=number], input[type=text], input[type=time], input:not([type]) {
  width: 84px; padding: 9px 10px; border: 1px solid var(--line); border-radius: 10px; background: var(--card); color: var(--text); font-size: 1rem;
}
.unit-sm { color: var(--muted); font-size: .9rem; }
select { padding: 9px 10px; border: 1px solid var(--line); border-radius: 10px; background: var(--card); color: var(--text); font-size: 1rem; }

.actions { display: flex; gap: 8px; flex-wrap: wrap; margin: 8px 0; }
.actions.two > * { flex: 1; }
.actions.three > * { flex: 1 1 30%; }
.btn { padding: 11px 14px; border: 0; border-radius: 12px; font-size: 1rem; cursor: pointer; background: var(--chip); color: var(--text); }
.btn.big { padding: 16px; font-size: 1.15rem; font-weight: 700; }
.btn.small { padding: 7px 12px; font-size: .88rem; }
.btn.primary { background: var(--primary); color: #fff; }
.btn.primary:active { background: var(--primary-dark); }
.btn.secondary { background: var(--chip); color: var(--text); }
.btn.danger { background: var(--danger); color: #fff; }
.btn.ghost { background: transparent; border: 1px solid var(--line); color: var(--text); }
.btn:disabled { opacity: .4; cursor: default; }
.row-inline { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; margin: 6px 0; }
.row-inline.grow, .grow { flex: 1; }
label.inline { display: inline-flex; align-items: center; gap: 6px; font-size: .9rem; }
label.inline input[type=number] { width: 70px; }

.result { margin-top: 8px; padding: 8px 10px; border-radius: 10px; background: var(--chip); font-size: .9rem; }
.result.ok { background: #dff5e8; color: #1e7e46; }
.result.err { background: #fde2e2; color: #a12626; }

.sched { display: flex; flex-direction: column; gap: 6px; }
.sched-row { display: grid; grid-template-columns: 28px 1fr 84px 26px; align-items: center; gap: 8px; }
.sched-row input[type=time] { width: 100%; }
.sched-row .g { display: flex; align-items: center; gap: 4px; }
.sched-row .g input { width: 60px; }
.sched-row.off { opacity: .55; }

.hist { list-style: none; margin: 0; padding: 0; }
.hist li { display: flex; justify-content: space-between; gap: 8px; padding: 8px 0; border-bottom: 1px solid var(--line); font-size: .9rem; }
.hist li:last-child { border-bottom: 0; }
.hist .t { color: var(--muted); font-size: .8rem; }
.hist .r { font-size: .78rem; padding: 2px 8px; border-radius: 999px; background: var(--chip); }
.hist .r.ok { background: #dff5e8; color: #1e7e46; }
.hist .r.err { background: #fde2e2; color: #a12626; }

.settings { display: grid; grid-template-columns: 1fr 1fr; gap: 8px 10px; }
.settings .field { display: flex; flex-direction: column; gap: 3px; }
.settings .field.wide { grid-column: 1 / -1; }
.settings label { font-size: .78rem; color: var(--muted); }
.settings input, .settings select { width: 100%; }
.settings .hint { font-size: .72rem; color: var(--muted); }

.log { background: var(--log-bg); color: var(--log-fg); border-radius: 10px; padding: 10px; height: 220px; overflow: auto; font-size: .78rem; margin: 6px 0 0; white-space: pre-wrap; word-break: break-all; font-family: ui-monospace, Consolas, monospace; }
.log .out { color: #9fd3ff; }
.log .err { color: #ff9b9b; }
.log .ok { color: #c8ffb0; }
.log .status { color: #8a8a8a; }

.muted { color: var(--muted); }
.small { font-size: .82rem; }
footer { text-align: center; margin-top: 16px; }

.toast { position: fixed; left: 50%; bottom: 24px; transform: translateX(-50%); background: #222; color: #fff; padding: 10px 16px; border-radius: 999px; font-size: .9rem; z-index: 50; max-width: 90vw; box-shadow: 0 4px 16px rgba(0,0,0,.25); }
.toast.err { background: var(--danger); }