:root {
  --bg: #fafaf8;
  --surface: #ffffff;
  --text: #1d1d1f;
  --muted: #6b6b70;
  --border: #e3e3e0;
  --accent: #1f8a4c;
  --accent-text: #ffffff;
  --warn-bg: #fff4e5;
  --warn-text: #8a4b00;
  --radius: 10px;
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #141416;
    --surface: #1d1d20;
    --text: #ececef;
    --muted: #a0a0a8;
    --border: #2e2e33;
    --accent: #3ccf7a;
    --accent-text: #0c1a12;
    --warn-bg: #3a2a12;
    --warn-text: #ffcf8a;
    color-scheme: dark;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.5 system-ui, -apple-system, "Segoe UI", sans-serif;
}

a { color: var(--accent); }

.topbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 20px;
  padding: 12px 16px;
  border-bottom: 1px solid var(--border);
  background: var(--surface);
}
.brand {
  font-weight: 700;
  text-decoration: none;
  color: var(--text);
  display: flex;
  align-items: center;
  gap: 8px;
}
.dot {
  width: 12px; height: 12px; border-radius: 50%;
  background: conic-gradient(#e33, #3c3, #33e, #e33);
}
nav { display: flex; flex-wrap: wrap; gap: 4px 16px; }
nav a { text-decoration: none; color: var(--muted); }
nav a:hover { color: var(--text); }
.status { margin-left: auto; font-size: 14px; color: var(--muted); }
.status.busy::before, .status.idle::before {
  content: ""; display: inline-block; width: 8px; height: 8px;
  border-radius: 50%; margin-right: 6px; background: var(--accent);
}
.status.busy::before { background: #e0a100; }

main { max-width: 1100px; margin: 0 auto; padding: 24px 16px; }
footer {
  max-width: 1100px; margin: 0 auto; padding: 24px 16px;
  color: var(--muted); font-size: 14px;
}

h1 { margin-top: 0; }

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  margin-bottom: 16px;
}
a.card { display: block; text-decoration: none; color: var(--text); }
a.card:hover { border-color: var(--accent); }
.grid { display: grid; gap: 16px; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); }

.flash {
  background: var(--warn-bg); color: var(--warn-text);
  padding: 10px 14px; border-radius: var(--radius); margin-bottom: 16px;
}

form .row { display: flex; align-items: center; gap: 12px; margin: 8px 0; }
form .row label { width: 56px; font-weight: 600; }
form input[type=range] { flex: 1; accent-color: var(--accent); }
input[type=number], input[type=text] {
  font: inherit; color: var(--text); background: var(--bg);
  border: 1px solid var(--border); border-radius: 6px; padding: 6px 8px;
}
input[type=number] { width: 90px; }
input[type=text] { width: 100%; max-width: 480px; }
button {
  font: inherit; font-weight: 600; cursor: pointer;
  background: var(--accent); color: var(--accent-text);
  border: 0; border-radius: 6px; padding: 8px 18px;
}
button[disabled] { opacity: 0.6; cursor: wait; }
.htmx-request button { opacity: 0.6; }

.swatch {
  width: 56px; height: 56px; border-radius: 50%;
  border: 1px solid var(--border); flex: none;
}

table { border-collapse: collapse; width: 100%; font-variant-numeric: tabular-nums; }
th, td { border: 1px solid var(--border); padding: 4px 8px; text-align: right; }
th { background: var(--bg); }
.table-scroll { overflow-x: auto; }

.camera { max-width: 100%; border-radius: var(--radius); }

.kpis { display: grid; gap: 16px; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); }
.kpi .value { font-size: 24px; white-space: nowrap; font-weight: 700; font-variant-numeric: tabular-nums; }
.kpi .label { color: var(--muted); font-size: 14px; }

.chart { width: 100%; min-height: 320px; }
.muted { color: var(--muted); }
.controls { display: flex; flex-wrap: wrap; gap: 8px 16px; align-items: center; }
.controls select, .controls input[type=date] {
  font: inherit; color: var(--text); background: var(--bg);
  border: 1px solid var(--border); border-radius: 6px; padding: 4px 6px;
}

pre { overflow-x: auto; background: var(--bg); border: 1px solid var(--border); border-radius: 6px; padding: 10px 12px; }

/* Home page hero */
.hero {
  display: grid; gap: 24px; align-items: center;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.25fr);
  margin-bottom: 8px;
}
@media (max-width: 820px) { .hero { grid-template-columns: minmax(0, 1fr); } }
.hero h1 { font-size: 40px; line-height: 1.1; margin-bottom: 8px; }
.lead { font-size: 20px; font-weight: 600; margin-top: 0; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 20px; }
a.button {
  display: inline-block; font-weight: 600; text-decoration: none;
  background: var(--accent); color: var(--accent-text);
  border: 1px solid var(--accent); border-radius: 6px; padding: 8px 18px;
}
a.button.secondary { background: transparent; color: var(--accent); }
.hero-figure { margin: 0; }
.hero-figure figcaption { margin-top: 8px; font-size: 14px; text-align: center; }
#hero-diagram { display: block; width: 100%; height: auto; }
#hero-diagram text { font-size: 13px; }
.hero-label { fill: var(--muted); }
.hero-ticks text { font-size: 11px; font-variant-numeric: tabular-nums; }
@media (max-width: 600px) {
  #hero-diagram text { font-size: 18px; }
  #hero-diagram .hero-ticks text { font-size: 14px; }
}
.hero-socket, .hero-chip { fill: var(--bg); stroke: var(--border); stroke-width: 2; }
.hero-arrow, .hero-axis { fill: none; stroke: var(--muted); stroke-width: 2; }
.hero-clear { fill: var(--muted); }
[data-led], [data-beam], [data-mix] { transition: opacity .8s ease, fill .8s ease; }
[data-bar] {
  transform-box: fill-box; transform-origin: bottom;
  transition: transform .8s ease;
}
@media (prefers-reduced-motion: reduce) {
  [data-led], [data-beam], [data-mix], [data-bar] { transition: none; }
}

.instrument { display: grid; gap: 20px; grid-template-columns: 240px minmax(0, 1fr); align-items: start; }
.instrument img { width: 100%; height: auto; border-radius: 6px; }
.instrument p:first-child { margin-top: 0; }
@media (max-width: 600px) { .instrument { grid-template-columns: minmax(0, 1fr); } .instrument img { max-width: 320px; } }