:root {
  color-scheme: dark;
  --bg: #080908;
  --panel: rgba(14, 17, 16, 0.9);
  --panel-strong: rgba(10, 12, 11, 0.96);
  --line: rgba(229, 222, 203, 0.18);
  --text: #f7f3e8;
  --muted: #b8b1a5;
  --amber: #e8c46c;
  --green: #98dfa8;
  --blue: #8fc7d9;
  --red: #ff6b5f;
  --steel: #aeb7bd;
  --wood: #b77b44;
}

* { box-sizing: border-box; }
html, body { margin: 0; min-height: 100%; }

body {
  background:
    linear-gradient(rgba(232, 196, 108, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(143, 199, 217, 0.028) 1px, transparent 1px),
    #080908;
  background-size: 48px 48px;
  color: var(--text);
  font-family: Inter, "Segoe UI", system-ui, sans-serif;
  letter-spacing: 0;
}

button, input, select, textarea { font: inherit; }

.site-header,
.site-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 24px 32px 12px;
}

.brand,
.site-footer a {
  color: var(--text);
  text-decoration: none;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border: 1px solid rgba(152, 223, 168, 0.4);
  background: rgba(152, 223, 168, 0.08);
  color: var(--green);
  font-weight: 950;
}

.brand strong { display: block; font-size: 16px; }
.brand small { display: block; color: var(--muted); font-size: 12px; }

.lab-nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 10px;
}

.lab-nav a {
  border: 1px solid rgba(229, 222, 203, 0.16);
  padding: 10px 12px;
  color: var(--text);
  font-size: 12px;
  font-weight: 900;
  text-decoration: none;
}

.lab-nav a:hover { border-color: rgba(232, 196, 108, 0.58); color: var(--amber); }

main {
  width: min(1240px, calc(100vw - 28px));
  margin: 0 auto;
  padding: 26px 0 36px;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 300px;
  gap: 16px;
  align-items: center;
  margin-bottom: 16px;
}

.kicker {
  margin: 0 0 12px;
  color: var(--amber);
  font-size: 12px;
  font-weight: 950;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

h1, h2, p { margin-top: 0; }

h1 {
  margin-bottom: 12px;
  font-size: clamp(34px, 5.6vw, 64px);
  line-height: 1.02;
}

h1 small {
  display: block;
  color: var(--muted);
  font-size: clamp(16px, 2vw, 24px);
  line-height: 1.25;
  margin-top: 6px;
}

.lead {
  display: grid;
  gap: 4px;
  max-width: 760px;
  color: #ddd4c6;
  font-size: 16px;
  line-height: 1.55;
}

.readout-card,
.stage-panel,
.control-panel,
.notes article {
  border: 1px solid var(--line);
  background: var(--panel);
  box-shadow: 0 18px 60px rgba(0, 0, 0, 0.36);
}

.readout-card {
  display: grid;
  gap: 10px;
  padding: 18px;
  color: var(--green);
  font-size: 12px;
  font-weight: 950;
  letter-spacing: 0.12em;
}

.bench-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 360px;
  gap: 18px;
  align-items: start;
}

.stage-panel,
.control-panel,
.notes article { border-radius: 8px; }

.stage-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  padding: 18px;
}

.stage-head h2 {
  margin: 0;
  font-size: clamp(26px, 3.5vw, 44px);
  line-height: 1;
}

.status-pill {
  flex: 0 0 auto;
  border: 1px solid rgba(152, 223, 168, 0.38);
  border-radius: 999px;
  padding: 10px 14px;
  color: var(--green);
  font-size: 12px;
  font-weight: 950;
}

.status-pill.is-warning {
  border-color: rgba(232, 196, 108, 0.58);
  color: var(--amber);
}

.status-pill.is-danger {
  border-color: rgba(255, 107, 95, 0.7);
  color: var(--red);
}

.canvas-frame {
  position: relative;
  margin: 0 18px 18px;
  overflow: hidden;
  border: 1px solid rgba(229, 222, 203, 0.15);
  border-radius: 6px;
  background: #030403;
  aspect-ratio: 1120 / 680;
}

canvas {
  display: block;
  width: 100%;
  height: 100%;
  cursor: grab;
  touch-action: none;
}

canvas.is-dragging { cursor: grabbing; }

.canvas-tag {
  position: absolute;
  left: 12px;
  bottom: 12px;
  border: 1px solid rgba(229, 222, 203, 0.14);
  background: rgba(0, 0, 0, 0.52);
  padding: 7px 10px;
  color: rgba(247, 243, 232, 0.72);
  font-size: 11px;
  font-weight: 900;
  letter-spacing: 0.12em;
  pointer-events: none;
}

.control-panel {
  padding: 14px;
  background: var(--panel-strong);
}

.panel-block {
  padding: 15px 0;
  border-bottom: 1px solid rgba(229, 222, 203, 0.12);
}

.panel-block:first-child { padding-top: 2px; }
.panel-block:last-child { border-bottom: 0; padding-bottom: 2px; }

.field {
  display: grid;
  gap: 7px;
  color: var(--muted);
  font-size: 12px;
  font-weight: 850;
}

select,
input,
textarea {
  width: 100%;
  border: 1px solid rgba(229, 222, 203, 0.18);
  border-radius: 6px;
  background: rgba(247, 243, 232, 0.055);
  color: var(--text);
}

select,
input { min-height: 42px; padding: 9px 10px; }

textarea {
  min-height: 142px;
  resize: vertical;
  padding: 10px;
  line-height: 1.55;
}

select option { background: #101312; color: var(--text); }

.input-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 92px;
  gap: 10px;
  align-items: end;
}

.message {
  min-height: 20px;
  margin: 8px 0 0;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.5;
}

.message.is-error { color: var(--red); }
.message.is-ok { color: var(--green); }

button {
  min-height: 42px;
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2px;
  border: 1px solid rgba(229, 222, 203, 0.16);
  border-radius: 6px;
  background: rgba(247, 243, 232, 0.058);
  color: var(--text);
  font-size: 12px;
  font-weight: 950;
  letter-spacing: 0.08em;
  cursor: pointer;
}

button small {
  color: var(--muted);
  font-size: 10px;
  font-weight: 850;
  line-height: 1.1;
  letter-spacing: 0;
}

button:hover,
button:focus-visible {
  border-color: rgba(232, 196, 108, 0.58);
  background: rgba(232, 196, 108, 0.13);
  outline: none;
}

.button-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
}

.ranges label {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 8px 12px;
  align-items: center;
  margin-bottom: 14px;
  color: var(--muted);
  font-size: 13px;
}

.ranges label:last-child { margin-bottom: 0; }
.ranges strong { color: var(--text); }
.ranges input { grid-column: 1 / -1; padding: 0; accent-color: var(--amber); }

.status-list dl {
  display: grid;
  gap: 8px;
  margin: 0;
}

.status-list div {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  padding-bottom: 7px;
  border-bottom: 1px solid rgba(229, 222, 203, 0.08);
}

.status-list dt {
  color: var(--muted);
  font-size: 11px;
  font-weight: 950;
  letter-spacing: 0.12em;
}

.status-list dt small {
  color: rgba(184, 177, 165, 0.8);
  letter-spacing: 0;
}

.status-list dd {
  margin: 0;
  color: var(--text);
  font-size: 12px;
  font-weight: 950;
  text-align: right;
}

.notes {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-top: 18px;
}

.notes article {
  padding: 18px;
}

.notes h2 {
  margin-bottom: 12px;
  font-size: 22px;
  line-height: 1.25;
}

.notes p {
  color: var(--muted);
  line-height: 1.8;
}

.site-footer {
  border-top: 1px solid rgba(229, 222, 203, 0.12);
  color: var(--muted);
  font-size: 12px;
}

@media (max-width: 980px) {
  .hero,
  .bench-layout,
  .notes {
    grid-template-columns: 1fr;
  }

  .readout-card { align-self: stretch; }
}

@media (max-width: 680px) {
  .site-header,
  .site-footer {
    align-items: flex-start;
    flex-direction: column;
    padding: 18px 14px 8px;
  }

  .lab-nav { justify-content: flex-start; }
  .lab-nav a { padding: 9px 10px; }
  main { width: min(100% - 20px, 1240px); padding-top: 20px; }
  .hero { gap: 14px; margin-bottom: 14px; }
  h1 { font-size: clamp(30px, 10vw, 42px); line-height: 1.04; }
  h1 small { font-size: clamp(15px, 5vw, 20px); }
  .lead { font-size: 14px; line-height: 1.5; }
  .kicker { font-size: 10px; letter-spacing: 0.12em; line-height: 1.3; margin-bottom: 8px; }
  .readout-card { gap: 8px; padding: 14px; }
  .stage-head { align-items: flex-start; flex-direction: column; }
  .canvas-frame { margin: 0 10px 10px; aspect-ratio: 1 / 1.03; }
  .control-panel { padding: 10px; }
  .button-grid { grid-template-columns: repeat(2, 1fr); }
  .input-row { grid-template-columns: 1fr; }
  .canvas-tag { font-size: 9px; max-width: calc(100% - 24px); }
}

.quick-guide {
  margin: 0 0 16px;
  padding: 14px 16px;
  border: 1px solid var(--line);
  background: rgba(14, 17, 16, 0.78);
  border-radius: 8px;
  box-shadow: 0 18px 54px rgba(0, 0, 0, 0.25);
}

.quick-guide ol {
  display: grid;
  gap: 6px;
  margin: 0;
  padding-left: 1.35rem;
  color: #ddd4c6;
  line-height: 1.55;
}

.quick-guide li::marker {
  color: var(--amber);
  font-weight: 950;
}