:root {
  color-scheme: dark;
  --bg: #0e1411;
  --panel: #16201b;
  --panel-2: #1d2a24;
  --line: #31433a;
  --text: #eef5ef;
  --muted: #aebeb1;
  --accent: #e6b94c;
  --accent-2: #7fd1a7;
}

:root[data-theme="light"] {
  color-scheme: light;
  --bg: #f1f5f2;
  --panel: #ffffff;
  --panel-2: #e8efea;
  --line: #a9b9ae;
  --text: #142019;
  --muted: #4f6256;
  --accent: #7b5700;
  --accent-2: #21704b;
}

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

body {
  margin: 0;
  font-family: "Segoe UI", system-ui, sans-serif;
  background:
    radial-gradient(circle at top, rgba(230, 185, 76, 0.14), transparent 34%),
    linear-gradient(180deg, #0c120f 0%, var(--bg) 100%);
  color: var(--text);
}

:root[data-theme="light"] body { background: linear-gradient(180deg, #f8faf8, var(--bg)); }

main {
  max-width: 1080px;
  margin: 0 auto;
  padding: 28px 18px 36px;
}

.hero {
  position: relative;
  padding: 10px 2px 20px;
}

.theme-toggle { position: absolute; top: 10px; right: 2px; width: auto; }

.eyebrow {
  margin: 0 0 8px;
  color: var(--accent);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

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

h1 {
  margin-bottom: 8px;
  font-size: clamp(2rem, 5vw, 3.2rem);
}

.lede {
  max-width: 60rem;
  color: var(--muted);
  line-height: 1.5;
}

.layout {
  display: grid;
  gap: 16px;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 340px), 1fr));
}

.panel {
  margin-top: 16px;
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: linear-gradient(180deg, var(--panel) 0%, var(--panel-2) 100%);
}

.toolbar,
.grid {
  display: grid;
  gap: 12px;
}

.toolbar {
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  align-items: end;
}

.toolbar--actions {
  margin-top: 14px;
}

.grid {
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 250px), 1fr));
}

label {
  display: grid;
  gap: 6px;
  color: var(--muted);
  font-size: 0.92rem;
}

.pair {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 5.4rem;
  gap: 10px;
  align-items: center;
}

input,
select,
button {
  width: 100%;
  min-width: 0;
  padding: 10px 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: color-mix(in srgb, var(--panel) 70%, var(--bg));
  color: var(--text);
}

button {
  cursor: pointer;
  background: linear-gradient(180deg, #26332d 0%, #16201b 100%);
}

button:hover {
  border-color: var(--accent-2);
}

input[type="range"] {
  padding: 0;
}

#status {
  margin: 12px 0 0;
  color: var(--accent-2);
}

.developer-tools { margin-top: 14px; }
.developer-tools summary { cursor: pointer; color: var(--muted); }

.notes {
  color: var(--muted);
  line-height: 1.55;
}

.transport-log-wrap {
  margin-top: 10px;
}

.transport-log-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 8px;
  color: var(--text);
}

.transport-log-header button {
  width: auto;
  padding: 6px 10px;
  font-size: 0.85rem;
}

.transport-log {
  margin: 0;
  min-height: 9rem;
  max-height: 16rem;
  overflow: auto;
  padding: 10px 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: color-mix(in srgb, var(--bg) 85%, #000);
  color: var(--accent-2);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.83rem;
  line-height: 1.45;
  white-space: pre-wrap;
  word-break: break-word;
}

@media (max-width: 560px) {
  .hero { padding-top: 58px; }
  .theme-toggle { left: 2px; right: auto; }
}