/* ── Themes ── */
:root,
[data-theme="dark"] {
  --bg: #000000;
  --surface: #0a0a0a;
  --surface2: #111111;
  --border: #1c1c1c;
  --text: #e2e8f0;
  --dim: #6b7a8d;
  --muted: #1e293b;
  --green: #00ff41;
  --cyan: #22d3ee;
  --red: #f87171;
  --amber: #f59e0b;
  --purple: #a78bfa;
  --font-mono: 'JetBrains Mono', 'Fira Code', 'Courier New', monospace;
  --font-body: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  color-scheme: dark;
}

[data-theme="light"] {
  --bg: #f5f6f8;
  --surface: #ffffff;
  --surface2: #eef0f3;
  --border: #d4d9e1;
  --text: #1a202c;
  --dim: #4a5568;
  --muted: #e2e8f0;
  --green: #16a34a;
  --cyan: #0284c7;
  --red: #dc2626;
  --amber: #b45309;
  --purple: #7c3aed;
  color-scheme: light;
}

[data-theme="hc"] {
  --bg: #000000;
  --surface: #0d0d0d;
  --surface2: #1a1a1a;
  --border: #ffffff;
  --text: #ffffff;
  --dim: #cccccc;
  --muted: #2d2d2d;
  --green: #00ff00;
  --cyan: #00ffff;
  --red: #ff4444;
  --amber: #ffff00;
  --purple: #dd88ff;
  color-scheme: dark;
}

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

html, body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  min-height: 100vh;
  overflow-x: hidden;
  -webkit-text-size-adjust: 100%;
  line-height: 1.6;
}

a { color: var(--cyan); text-decoration: none; }
a:hover { color: var(--green); }

code, kbd, samp, pre {
  font-family: var(--font-mono);
}

.tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  border: 1px solid var(--border);
  border-radius: 3px;
  padding: 2px 6px;
  color: var(--dim);
}
.tag.live   { border-color: var(--green); color: var(--green); }
.tag.warn   { border-color: var(--amber); color: var(--amber); }
.tag.danger { border-color: var(--red);   color: var(--red); }

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: none;
  border: 1px solid var(--cyan);
  border-radius: 4px;
  color: var(--cyan);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  padding: 10px 20px;
  cursor: pointer;
  letter-spacing: 0.05em;
  transition: background 0.15s, color 0.15s;
}
.btn:hover, .btn:active { background: var(--cyan); color: #000; }
.btn.danger { border-color: var(--red); color: var(--red); }
.btn.danger:hover { background: var(--red); color: #000; }

.pulse {
  display: inline-block;
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--green);
  flex-shrink: 0;
  animation: pulse 2s ease-in-out infinite;
}
@keyframes pulse { 0%,100%{opacity:1;transform:scale(1)} 50%{opacity:0.4;transform:scale(0.85)} }

.sensor-strip-wrap {
  width: 100%;
  max-width: 680px;
}
.sensor-strip-label {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--dim);
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin-bottom: 6px;
  padding-left: 2px;
}

.lang-picker {
  position: relative;
}
.lang-dropdown {
  display: none;
  position: absolute;
  top: calc(100% + 6px);
  right: 0;
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: 6px;
  overflow: hidden;
  z-index: 200;
  min-width: 140px;
  box-shadow: 0 8px 24px rgba(0,0,0,0.5);
}
.lang-dropdown.open { display: flex; flex-direction: column; }
.lang-option {
  display: block;
  width: 100%;
  padding: 9px 14px;
  background: none;
  border: none;
  color: var(--dim);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.06em;
  text-align: left;
  cursor: pointer;
  transition: background 0.1s, color 0.1s;
}
.lang-option:hover { background: var(--muted); color: var(--text); }
.lang-option.active { color: var(--cyan); }

.value-update {
  animation: flashUpdate 0.4s ease-out;
}
@keyframes flashUpdate {
  0% { color: #fff; text-shadow: 0 0 8px var(--green); }
  100% { color: var(--green); text-shadow: none; }
}

canvas { display: block; }