:root{
  --bg:#dfe7df;
  --surface:#e8eee8;
  --surface-2:#d7e1dc;
  --ink:#1f292a;
  --muted:#66706d;
  --line:#55615d;
  --accent:#6c939d;
  --accent-2:#a8c1c5;
  --success:#738e76;
  --shadow:rgba(31,41,42,.08);
  --glow:rgba(168,225,236,.0);
  --radius:28px;
  --radius-sm:18px;
}

body[data-mode="backlit"]{
  --bg:#17343c;
  --surface:#1e414a;
  --surface-2:#234c56;
  --ink:#daf7fb;
  --muted:#9fc5cb;
  --line:#74a4ad;
  --accent:#9de2eb;
  --accent-2:#5c919b;
  --success:#b8d8bd;
  --shadow:rgba(0,0,0,.12);
  --glow:rgba(132,220,234,.16);
}

*{box-sizing:border-box}

html,body{min-height:100%}

body{
  margin:0;
  color:var(--ink);
  background:
    radial-gradient(circle at 20% 10%, color-mix(in srgb, var(--surface) 55%, transparent), transparent 35%),
    linear-gradient(180deg, var(--bg), color-mix(in srgb, var(--bg) 88%, #fff 12%));
  font-family:Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  transition:background .35s ease, color .35s ease;
}

.shell{
  width:min(1180px, calc(100% - 34px));
  margin:28px auto;
  padding:26px;
  border:1px solid color-mix(in srgb, var(--line) 65%, transparent);
  border-radius:38px;
  background:color-mix(in srgb, var(--surface) 96%, transparent);
  box-shadow:0 18px 50px var(--shadow);
  position:relative;
  overflow:hidden;
}

.shell::after{
  content:"";
  position:absolute;
  inset:0;
  pointer-events:none;
  background:repeating-linear-gradient(0deg, rgba(255,255,255,.018) 0px, rgba(255,255,255,.018) 1px, transparent 1px, transparent 4px);
  opacity:.5;
  mix-blend-mode:soft-light;
}

body[data-mode="backlit"] .shell{
  box-shadow:0 18px 50px rgba(0,0,0,.18), inset 0 0 45px var(--glow);
}

.topbar{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  margin-bottom:24px;
}

.brand h1{
  margin:0;
  font-size:clamp(2rem,5vw,4.3rem);
  line-height:.95;
  font-weight:520;
  letter-spacing:-.055em;
}

.brand small{
  display:block;
  margin-top:8px;
  color:var(--muted);
  font-size:.82rem;
  letter-spacing:.18em;
  text-transform:uppercase;
}

.mode{
  display:flex;
  align-items:center;
  gap:10px;
  font-family:"SFMono-Regular",Consolas,"Liberation Mono",monospace;
  font-size:.85rem;
  color:var(--muted);
  user-select:none;
}

.switch{
  width:74px;
  height:38px;
  border:1px solid var(--line);
  border-radius:999px;
  padding:4px;
  background:transparent;
  cursor:pointer;
  display:flex;
  align-items:center;
  transition:.25s ease;
}

.switch span{
  width:28px;
  height:28px;
  border-radius:50%;
  border:1px solid var(--line);
  background:var(--surface);
  transform:translateX(0);
  transition:.25s ease;
}

body[data-mode="backlit"] .switch span{
  transform:translateX(34px);
  background:var(--accent);
  border-color:var(--accent);
  box-shadow:0 0 18px rgba(157,226,235,.18);
}

.hero{
  display:grid;
  grid-template-columns:1.2fr .8fr;
  gap:18px;
  margin-bottom:18px;
}

.card{
  border:1px solid color-mix(in srgb, var(--line) 72%, transparent);
  border-radius:var(--radius);
  padding:24px;
  background:color-mix(in srgb, var(--surface) 95%, transparent);
}

.thermo{
  display:grid;
  grid-template-columns:auto 1fr auto;
  align-items:center;
  gap:18px;
  min-height:180px;
}

.temp{
  font-family:"SFMono-Regular",Consolas,"Liberation Mono",monospace;
  font-size:clamp(3.2rem,9vw,7.2rem);
  line-height:.9;
  letter-spacing:-.07em;
  white-space:nowrap;
}

.temp sup{font-size:.34em; vertical-align:top; letter-spacing:-.03em}

.status{
  align-self:center;
  max-width:270px;
  font-family:"SFMono-Regular",Consolas,"Liberation Mono",monospace;
  font-size:1.02rem;
  line-height:1.4;
  color:var(--muted);
}

.dial{
  --p:0;
  width:98px;
  aspect-ratio:1;
  border-radius:50%;
  background:conic-gradient(var(--ink) 0 calc(var(--p) * 1%), color-mix(in srgb, var(--line) 20%, transparent) calc(var(--p) * 1%) 100%);
  display:grid;
  place-items:center;
  position:relative;
}

.dial::after{
  content:attr(data-label);
  width:76px;
  aspect-ratio:1;
  border-radius:50%;
  background:var(--surface);
  border:1px solid color-mix(in srgb, var(--line) 42%, transparent);
  display:grid;
  place-items:center;
  font-family:"SFMono-Regular",Consolas,"Liberation Mono",monospace;
  font-size:1rem;
}

.side .kicker,
.label{
  font-size:.78rem;
  text-transform:uppercase;
  letter-spacing:.12em;
  color:var(--muted);
}

.side .value{
  font-family:"SFMono-Regular",Consolas,"Liberation Mono",monospace;
  font-size:2.6rem;
  margin:9px 0 18px;
  letter-spacing:-.05em;
}

.bar{
  height:12px;
  border:1px solid var(--line);
  border-radius:99px;
  overflow:hidden;
  margin:8px 0 6px;
}

.bar > span{
  display:block;
  width:0;
  height:100%;
  background:repeating-linear-gradient(90deg, var(--accent) 0 10px, transparent 10px 13px);
  transition:width .6s ease;
}

.bar-scale{
  display:flex;
  justify-content:space-between;
  color:var(--muted);
  font-family:"SFMono-Regular",Consolas,"Liberation Mono",monospace;
  font-size:.8rem;
}

.grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:18px;
  margin-bottom:18px;
}

.metric{min-height:190px}

.metric .big{
  margin-top:18px;
  font-family:"SFMono-Regular",Consolas,"Liberation Mono",monospace;
  font-size:3rem;
  letter-spacing:-.05em;
}

.metric p{
  color:var(--muted);
  margin:8px 0 0;
  line-height:1.45;
}

.pixel-graph{
  display:grid;
  grid-template-columns:repeat(18,1fr);
  gap:4px;
  margin-top:24px;
}

.pixel-graph i{
  display:block;
  aspect-ratio:1;
  border:1px solid color-mix(in srgb, var(--line) 70%, transparent);
  background:transparent;
}

.pixel-graph i.on{background:var(--accent)}

.schedule{
  padding:0;
  overflow:hidden;
  margin-bottom:18px;
}

.schedule header{
  padding:18px 22px;
  border-bottom:1px solid var(--line);
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:10px;
}

.schedule header strong{
  font-size:.92rem;
  letter-spacing:.08em;
  text-transform:uppercase;
}

.row{
  display:grid;
  grid-template-columns:1.1fr .8fr 1.3fr 1.3fr auto;
  align-items:center;
  gap:12px;
  padding:17px 22px;
  border-bottom:1px solid color-mix(in srgb, var(--line) 55%, transparent);
  font-family:"SFMono-Regular",Consolas,"Liberation Mono",monospace;
}

.row:last-child{border-bottom:0}
.row strong{font-weight:700}
.row .muted{color:var(--muted)}

.kv{
  display:grid;
  grid-template-columns:1fr auto;
  align-items:center;
  gap:12px;
  padding:17px 22px;
  border-bottom:1px solid color-mix(in srgb, var(--line) 55%, transparent);
  font-family:"SFMono-Regular",Consolas,"Liberation Mono",monospace;
}

.kv:last-child{border-bottom:0}
.kv > span{
  font-size:.78rem;
  text-transform:uppercase;
  letter-spacing:.12em;
  color:var(--muted);
}

.pill{
  min-width:64px;
  text-align:center;
  border:1px solid var(--line);
  border-radius:999px;
  padding:7px 10px;
  font-size:.78rem;
}

.pill.on{background:var(--ink); color:var(--surface)}

.footer{
  display:flex;
  justify-content:space-between;
  margin-top:18px;
  color:var(--muted);
  font-family:"SFMono-Regular",Consolas,"Liberation Mono",monospace;
  font-size:.76rem;
  letter-spacing:.04em;
}

.footer .error{color:#b04438}
body[data-mode="backlit"] .footer .error{color:#f0a49a}

@media (max-width:860px){
  .hero,.grid{grid-template-columns:1fr}
  .thermo{grid-template-columns:1fr auto}
  .status{grid-column:1/-1}
  .row{grid-template-columns:1fr 1fr}
  .row > :nth-child(3),
  .row > :nth-child(4){color:var(--muted)}
  .row .pill{justify-self:end}
}

@media (max-width:560px){
  .shell{width:min(100% - 16px,1180px); margin:8px auto; padding:16px; border-radius:26px}
  .topbar{align-items:flex-start}
  .brand h1{font-size:2.5rem}
  .thermo{padding:20px}
  .temp{font-size:3.4rem}
  .dial{width:80px}
  .dial::after{width:62px}
  .row{grid-template-columns:1fr auto}
  .row > :nth-child(3),
  .row > :nth-child(4){display:none}
  .footer{flex-direction:column; gap:6px}
}