:root {
  --bg0: #0c1a24;
  --bg1: #132836;
  --ink: #e8f1f6;
  --muted: #8aa3b5;
  --accent: #3db8c5;
  --warm: #e08a3c;
  --warm-deep: #c45a1a;
  --ok: #3dba7a;
  --danger: #d45a4a;
  --card: rgba(255, 255, 255, 0.05);
  --line: rgba(255, 255, 255, 0.1);
  --font: "DM Sans", system-ui, sans-serif;
  --display: "Instrument Serif", Georgia, serif;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  min-height: 100%;
  font-family: var(--font);
  color: var(--ink);
  background:
    radial-gradient(120% 80% at 10% -10%, rgba(61, 184, 197, 0.22), transparent 55%),
    radial-gradient(90% 70% at 100% 0%, rgba(224, 138, 60, 0.18), transparent 50%),
    linear-gradient(165deg, var(--bg0), var(--bg1) 55%, #0a1520);
  background-attachment: fixed;
}

body {
  padding: env(safe-area-inset-top) env(safe-area-inset-right) env(safe-area-inset-bottom) env(safe-area-inset-left);
}

.screen {
  max-width: 440px;
  margin: 0 auto;
  padding: 1.25rem 1.25rem 2.5rem;
  min-height: 100dvh;
}

.hidden { display: none !important; }

.brand {
  margin: 0;
  font-size: 0.8rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
  font-weight: 600;
}

.login-panel {
  margin-top: 18vh;
}

.login-panel h1 {
  font-family: var(--display);
  font-weight: 400;
  font-size: 2.8rem;
  margin: 0.35rem 0 0.25rem;
  line-height: 1;
}

.sub, .clock {
  margin: 0;
  color: var(--muted);
  font-size: 0.95rem;
}

label {
  display: block;
  margin: 1.75rem 0 0.4rem;
  color: var(--muted);
  font-size: 0.85rem;
}

input[type="password"] {
  width: 100%;
  padding: 0.9rem 1rem;
  border-radius: 12px;
  border: 1px solid var(--line);
  background: var(--card);
  color: var(--ink);
  font-size: 1.05rem;
}

.btn {
  appearance: none;
  border: none;
  border-radius: 14px;
  padding: 0.85rem 1.1rem;
  font: inherit;
  font-weight: 600;
  cursor: pointer;
  transition: transform 0.15s ease, opacity 0.15s ease;
}

.btn:active { transform: scale(0.98); }
.btn:disabled { opacity: 0.45; cursor: wait; }

.btn.primary {
  width: 100%;
  margin-top: 1rem;
  background: linear-gradient(135deg, var(--accent), #2a8f9c);
  color: #041018;
}

.btn.ghost {
  background: transparent;
  color: var(--muted);
  border: 1px solid var(--line);
}

.btn.secondary {
  background: var(--card);
  color: var(--ink);
  border: 1px solid var(--line);
  flex: 1;
}

.btn.big {
  flex: 1;
  padding: 1.15rem 0.75rem;
  font-size: 1.05rem;
}

.btn.big.on {
  background: linear-gradient(145deg, var(--warm), var(--warm-deep));
  color: #1a0c04;
}

.btn.big.off {
  background: rgba(212, 90, 74, 0.2);
  color: #ffb4ab;
  border: 1px solid rgba(212, 90, 74, 0.35);
}

.top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.hero-temp {
  text-align: center;
  padding: 1.5rem 0 1.25rem;
}

.hero-temp .label {
  margin: 0;
  color: var(--muted);
  font-size: 0.85rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.temp {
  font-family: var(--display);
  font-size: 5.5rem;
  line-height: 0.95;
  margin: 0.2rem 0;
  font-weight: 400;
  background: linear-gradient(180deg, #fff 20%, #9fd7e0);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.message {
  margin: 0.5rem 0 0;
  color: var(--muted);
  font-size: 1rem;
  min-height: 1.4em;
}

.status-row {
  display: flex;
  gap: 0.5rem;
  margin: 0.5rem 0 1.25rem;
}

.pill {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.35rem;
  padding: 0.55rem 0.4rem;
  border-radius: 999px;
  background: var(--card);
  border: 1px solid var(--line);
  font-size: 0.78rem;
  color: var(--muted);
}

.pill .dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--muted);
}

.pill.on {
  color: #b8f0d0;
  border-color: rgba(61, 186, 122, 0.4);
}
.pill.on .dot { background: var(--ok); box-shadow: 0 0 8px var(--ok); }

.pill.active {
  color: #b8e8ef;
  border-color: rgba(61, 184, 197, 0.45);
}

.actions {
  display: flex;
  gap: 0.75rem;
  margin-bottom: 0.75rem;
}

.secondary-row { margin-bottom: 1.75rem; }

.info {
  padding: 1.1rem 1.15rem;
  border-radius: 18px;
  background: var(--card);
  border: 1px solid var(--line);
}

.info h2 {
  margin: 0 0 0.65rem;
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
  font-weight: 600;
}

.info-line {
  margin: 0.25rem 0;
  font-size: 0.98rem;
}

.hint {
  margin: 0.75rem 0 0;
  font-size: 0.8rem;
  color: var(--muted);
}

.error {
  color: #ffb4ab;
  font-size: 0.9rem;
  margin-top: 0.75rem;
}

.log-box {
  margin-top: 1rem;
}

.event-log {
  max-height: 280px;
  overflow-y: auto;
  font-size: 0.82rem;
  line-height: 1.45;
  color: var(--muted);
  -webkit-overflow-scrolling: touch;
}

.event-line {
  display: grid;
  grid-template-columns: 4.2rem 1fr;
  gap: 0.5rem;
  padding: 0.35rem 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.event-line .t {
  color: var(--accent);
  font-variant-numeric: tabular-nums;
}

.event-line .m {
  color: var(--ink);
  opacity: 0.9;
}