*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg:       #111;
  --surface:  #1c1c1c;
  --border:   #2e2e2e;
  --orange:   #f06a00;
  --orange-d: #c45500;
  --text:     #e8e8e8;
  --muted:    #888;
  --red:      #e05050;
  --green:    #4caf7d;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  min-height: 100vh;
}

@media (min-width: 1101px) {
  html { font-size: 30px; }
  body { height: 100vh; display: flex; flex-direction: column; overflow: hidden; }
  main { flex: 1; width: 100%; max-width: none; display: flex; flex-direction: column; overflow: hidden; padding: 1.5rem 2.5rem; }
  .chart-section { flex: 1; height: auto; min-height: 0; width: 100%; }
  .chart-section canvas { width: 100% !important; }
  .temp-card .value { font-size: 3.5rem; }
  .temp-card { padding: 1.5rem 1.25rem; }
  .temps { gap: 1.25rem; margin-bottom: 1.25rem; }
}

header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.5rem 2rem;
  border-bottom: 1px solid var(--border);
}

.logo {
  height: 1.5rem;
  width: auto;
  display: block;
}

.badge {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  padding: 0.25rem 0.75rem;
  border-radius: 999px;
  text-transform: uppercase;
}
.badge.on           { background: rgba(76,175,125,0.15);  color: var(--green); border: 1px solid var(--green); }
.badge.standby      { background: rgba(240,106,0,0.12);  color: var(--orange); border: 1px solid var(--orange); }
.badge.disconnected { background: rgba(136,136,136,0.1); color: var(--muted);  border: 1px solid var(--border); }
.badge.error        { background: rgba(224,80,80,0.15);  color: var(--red);    border: 1px solid var(--red); }

.btn {
  border: none;
  border-radius: 8px;
  cursor: pointer;
  font-size: 0.85rem;
  font-weight: 600;
  padding: 0.25rem 0.9rem;
  transition: background 0.15s;
}
.btn.monitor-on  { background: rgba(136,136,136,0.15); border: 1px solid var(--border); color: var(--muted); }
.btn.monitor-on:hover  { border-color: var(--red); color: var(--red); }
.btn.monitor-off { background: rgba(76,175,125,0.15); border: 1px solid var(--green); color: var(--green); }
.btn.monitor-off:hover { background: rgba(76,175,125,0.3); }
.btn.clear { background: rgba(136,136,136,0.1); border: 1px solid var(--border); color: var(--muted); }
.btn.clear:hover { border-color: var(--red); color: var(--red); }
.header-actions { display: flex; gap: 0.5rem; }

main {
  max-width: 1800px;
  margin: 0 auto;
  padding: 1.5rem 2rem;
}

/* Temp cards — 6 across on desktop, wraps on smaller screens */
.temps {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 1rem;
  margin-bottom: 1rem;
}

.temp-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.25rem 1rem;
  text-align: center;
}
.temp-card.primary    { border-color: var(--orange); }
.temp-card.primary .value { color: var(--orange); }

.temp-card.c-target     { border-color: #888; }
.temp-card.c-target .value { color: #888; }

.temp-card.c-probe-a    { border-color: #5bc0eb; }
.temp-card.c-probe-a .value { color: #5bc0eb; }

.temp-card.c-probe-b    { border-color: #c3b1e1; }
.temp-card.c-probe-b .value { color: #c3b1e1; }

.temp-card.c-wireless-1 { border-color: #4caf7d; }
.temp-card.c-wireless-1 .value { color: #4caf7d; }

.temp-card.c-wireless-2 { border-color: #f9c74f; }
.temp-card.c-wireless-2 .value { color: #f9c74f; }

.temp-card .label {
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 0.5rem;
  white-space: nowrap;
}
.temp-card .value {
  font-size: 2.8rem;
  font-weight: 700;
  line-height: 1;
  color: var(--text);
}
.temp-card .unit {
  font-size: 0.8rem;
  color: var(--muted);
  margin-top: 0.2rem;
}

.probe-status { font-size: 0.65rem; color: var(--muted); font-weight: 400; letter-spacing: 0; text-transform: none; margin-left: 4px; }
.probe-status.charging { color: var(--green); }
.battery { font-size: 0.7rem; color: var(--muted); margin-top: 0.3rem; }

/* Error bar */
.error-bar {
  background: rgba(224,80,80,0.12);
  border: 1px solid var(--red);
  border-radius: 8px;
  color: var(--red);
  font-size: 0.85rem;
  padding: 0.6rem 1rem;
  margin-bottom: 1rem;
}
.hidden { display: none; }

/* Chart */
.chart-section {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1rem 1.5rem;
  margin-bottom: 1rem;
  height: 280px;
}

.chart-section canvas {
  height: 100% !important;
}


/* Responsive breakpoints */
@media (max-width: 1100px) {
  .temps { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 640px) {
  main { padding: 1rem; }
  header { padding: 1rem; }
  .temps { grid-template-columns: repeat(2, 1fr); }
  .temp-card .value { font-size: 2.2rem; }
}