:root{--bg:#f3f5f8;--card:#fff;--fg:#0f1720;--mute:#6b7785;--line:#e3e8ee;--acc:#b6420c;--acc-text:#b6420c;--acc-fg:#fff;--btn:#1f2a37;--btn-fg:#fff;--edge:#7d8b9b;--okbtn:#2b7a3d;
--ok:#2f9e44;--bad:#e03131;--warn:#f08c00;--danger:#8a1c1c;--r:16px;
--safe-t:env(safe-area-inset-top);--safe-b:env(safe-area-inset-bottom);color-scheme:light}
/* Dark: follows the phone unless the user chose Light; or forced with data-theme="dark" (Account > Appearance) */
@media(prefers-color-scheme:dark){:root:not([data-theme="light"]){--bg:#0f1720;--card:#18222e;--fg:#eef2f6;--mute:#8b98a7;--line:#263342;--danger:#a32222;--acc-text:#ff9457;--btn:#dbe3ec;--btn-fg:#0f1720;--edge:#66788c;--okbtn:#3aa352;color-scheme:dark}}
:root[data-theme="dark"]{--bg:#0f1720;--card:#18222e;--fg:#eef2f6;--mute:#8b98a7;--line:#263342;--danger:#a32222;--acc-text:#ff9457;--btn:#dbe3ec;--btn-fg:#0f1720;--edge:#66788c;--okbtn:#3aa352;color-scheme:dark}
*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}
html,body{margin:0;background:var(--bg);color:var(--fg);font:16px/1.4 system-ui,-apple-system,Segoe UI,Roboto,sans-serif}
#app{max-width:640px;margin:0 auto;padding:calc(var(--safe-t) + 8px) 16px calc(var(--safe-b) + 24px)}
header.top{display:flex;align-items:center;gap:8px;padding:8px 0 12px}
header.top h1{font-size:1.25rem;margin:0;flex:1}
button,.btn{font:inherit;border:1px solid transparent;border-radius:12px;padding:10px 14px;min-height:44px;background:var(--line);color:var(--fg);cursor:pointer}
button.primary{background:var(--btn);color:var(--btn-fg);font-weight:600}
button:not(.primary):not(.bigbtn):not(.danger):not(.ghost):not(.iconbtn){border-color:var(--edge)}
button.danger{background:var(--bad);color:#fff}
button.ghost{background:transparent;color:var(--mute)}
button:disabled{opacity:.5}
.card{background:var(--card);border-radius:var(--r);padding:16px;margin:0 0 12px;box-shadow:0 1px 2px rgba(0,0,0,.06)}
.row{display:flex;align-items:center;gap:10px}.row.sp{justify-content:space-between}
.grow{flex:1}.mute{color:var(--mute);font-size:.875rem}.col{display:flex;flex-direction:column;gap:10px}
.dot{width:10px;height:10px;border-radius:50%;background:var(--mute);display:inline-block}
.dot.on{background:var(--ok)}.dot.stale{background:var(--warn)}
.temp{font-size:2.6rem;font-weight:700;letter-spacing:-1px}
.pill{font-size:.75rem;padding:2px 8px;border-radius:99px;background:var(--line);color:var(--mute)}
.pill.warn{background:var(--warn);color:#000}.pill.bad{background:var(--bad);color:#fff}
.switch{position:relative;width:64px;height:36px;flex:none}
.switch input{opacity:0;position:absolute;inset:0;margin:0;cursor:pointer;z-index:1}
.switch i{position:absolute;inset:0;background:var(--edge);border-radius:99px;transition:.2s}
.switch i:after{content:"";position:absolute;left:4px;top:4px;width:28px;height:28px;border-radius:50%;background:#fff;transition:.2s;box-shadow:0 1px 3px rgba(0,0,0,.3)}
.switch input:checked+i{background:var(--okbtn)}.switch input:checked+i:after{transform:translateX(28px)}
.switch input:disabled{cursor:not-allowed}
input[type=text],input[type=email],input[type=password],input[type=number]{font:inherit;width:100%;padding:12px;border-radius:12px;border:1px solid var(--edge);background:var(--bg);color:var(--fg);min-height:44px}
label.f{display:flex;flex-direction:column;gap:4px;font-size:.875rem;color:var(--mute)}
label.chk{display:flex;align-items:center;gap:8px;color:var(--fg)}
label.chk input{width:20px;height:20px;accent-color:var(--btn)}
.bars{display:inline-flex;gap:2px;align-items:flex-end;height:14px}
.bars b{width:4px;background:var(--line);border-radius:1px}.bars b.on{background:var(--fg)}
.tabs{display:flex;gap:6px;margin-bottom:12px}.tabs button{flex:1}.tabs button.sel{background:var(--btn);color:var(--btn-fg);border-color:var(--btn)}
dialog{border:0;border-radius:var(--r);padding:18px;width:min(92vw,460px);background:var(--card);color:var(--fg)}
dialog::backdrop{background:rgba(0,0,0,.5)}
.login{margin-top:15vh}.login h1{text-align:center}
.err{color:var(--bad);font-size:.875rem;min-height:1.2em}
code,.mono{font-family:ui-monospace,Menlo,monospace;font-size:.85rem;word-break:break-all;background:var(--bg);padding:2px 6px;border-radius:6px}
#toast{position:fixed;left:50%;bottom:calc(var(--safe-b) + 20px);transform:translate(-50%,80px);background:#222;color:#fff;padding:10px 16px;border-radius:12px;transition:.25s;opacity:0;pointer-events:none;max-width:90vw}
#toast.show{transform:translate(-50%,0);opacity:1}
svg.chart{width:100%;height:120px;display:block}
.empty{text-align:center;color:var(--mute);padding:32px 0}

.demo-banner{background:#f08c00;color:#000;text-align:center;font-size:.8rem;font-weight:600;padding:4px 8px;border-radius:10px;margin-bottom:8px}
.demo-events{display:flex;flex-wrap:wrap;gap:8px}
.demo-events button{flex:1 1 45%;min-height:40px;font-size:.9rem}

.row.wrap{flex-wrap:wrap}.row.top{align-items:flex-start}
.namebox{min-width:0}
.carname{color:inherit;text-decoration:none;font-weight:700;font-size:1.2rem;overflow-wrap:anywhere}
.iconbtn{background:transparent;color:var(--mute);min-height:44px;min-width:44px;margin:-8px 0;padding:4px;border-radius:8px;display:inline-flex;align-items:center;justify-content:center}
.iconbtn:hover{color:var(--fg)}
/* Status request: small, dark red = costs data. Disabled while the server-side cooldown runs. */
.tempbox{margin:6px 0 10px}
.pills{align-items:flex-end;gap:4px}
.bigbtn{width:100%;min-height:68px;border-radius:18px;font-size:1.3rem;font-weight:700;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;line-height:1.1}
.bigbtn small{font-size:.8rem;font-weight:500;opacity:.85}
.bigbtn.go{background:var(--acc);color:var(--acc-fg)}
.bigbtn.stop{background:var(--fg);color:var(--bg)}
.bigbtn:disabled{opacity:.55;cursor:not-allowed}
.chips{display:flex;flex-wrap:wrap;gap:8px}
.chip{min-height:38px;padding:6px 12px;border-radius:99px;font-size:.9rem;background:var(--line);color:var(--fg)}
.chip.sel{background:var(--btn);color:var(--btn-fg);font-weight:600;border-color:var(--btn)}
.progress{height:10px;border-radius:99px;background:var(--line);overflow:hidden}
.progress i{display:block;height:100%;background:var(--acc);transition:width 1s linear}
.heatlabel{color:var(--acc-text)}
.foot{display:flex;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:0 12px;margin-top:4px;font-size:.8rem}
.foot a{display:inline-flex;align-items:center;min-height:44px}
.sched{border-top:1px solid var(--line);padding-top:10px}
select{font:inherit;width:100%;padding:12px;border-radius:12px;border:1px solid var(--edge);background:var(--bg);color:var(--fg);min-height:44px}
input[type=time]{font:inherit;width:100%;padding:12px;border-radius:12px;border:1px solid var(--edge);background:var(--bg);color:var(--fg);min-height:44px}
.stepper{display:flex;align-items:center;gap:10px}
.stepper .chip{min-width:44px;min-height:44px;font-size:1.2rem;font-weight:700;padding:0}
.stepper .chip:disabled{opacity:.4}
.stepval{font-size:1.3rem;font-weight:700;min-width:72px;text-align:center;font-variant-numeric:tabular-nums}
select.inline{width:auto;min-width:110px}
.lastrun{margin-top:10px;font-size:.9rem}

/* An old reading is dimmed; "start when connected" is an outline, the request is queued rather than sent. */
.card.offline .temp{opacity:.5}
.bigbtn.go.queued{background:transparent;color:var(--acc-text);border:2px solid var(--acc)}
details.help summary{cursor:pointer;color:var(--mute);font-size:.875rem;min-height:32px;display:flex;align-items:center}
details.help p{margin:4px 0 0}
.plot{position:relative;padding-left:52px}
.plot .ylab{position:absolute;left:0;font-size:.75rem;color:var(--mute);background:var(--card);padding:0 4px;border-radius:4px}
.login h1{margin-bottom:0}
details.help summary::before{content:"ⓘ";margin-right:6px}