:root {
  color-scheme: dark;
  --bg: #0b0f0d;
  --panel: #121814;
  --panel-border: #2a3a30;
  --accent: #6fffb0;
  --accent-dim: #3a8a5f;
  --text: #d6ecdc;
  --text-dim: #8fa89a;
  --warn: #ff8a5c;
  --font: "SF Mono", "Menlo", "Consolas", monospace;
}

* {
  box-sizing: border-box;
}

html, body {
  height: 100%;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  line-height: 1.5;
}

#app {
  max-width: 720px;
  margin: 0 auto;
  padding: 24px 16px 48px;
}

.screen h1, .screen h2 {
  letter-spacing: 0.04em;
}

h1 {
  font-size: clamp(28px, 6vw, 44px);
  margin: 32px 0 4px;
}

h1 .slash {
  color: var(--accent);
}

.tagline {
  color: var(--accent);
  margin: 0 0 24px;
}

.blurb {
  color: var(--text-dim);
  max-width: 60ch;
}

.title-actions {
  display: flex;
  gap: 12px;
  margin-top: 24px;
  flex-wrap: wrap;
}

button {
  font-family: inherit;
  background: var(--panel);
  color: var(--text);
  border: 1px solid var(--panel-border);
  border-radius: 4px;
  padding: 10px 16px;
  cursor: pointer;
  font-size: 14px;
}

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

button:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.bench-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 16px;
}

.signal-source {
  color: var(--text-dim);
  margin: 4px 0 0;
  font-size: 14px;
}

.bench-header-actions {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

#signal-canvas {
  width: 100%;
  height: auto;
  aspect-ratio: 640 / 200;
  background: #060a08;
  border: 1px solid var(--panel-border);
  border-radius: 4px;
  display: block;
}

.controls {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 16px;
  margin: 20px 0;
}

.control {
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: 13px;
  color: var(--text-dim);
}

.control input[type="range"] {
  accent-color: var(--accent);
}

.hint-text {
  color: var(--accent);
  font-size: 13px;
  min-height: 1.2em;
  margin: 8px 0 16px;
}

.status-panel {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
  font-size: 13px;
  color: var(--text-dim);
  margin-bottom: 16px;
}

.status-item span {
  color: var(--text);
}

#stat-clipping-wrap {
  color: var(--warn);
  border: 1px solid var(--warn);
  border-radius: 3px;
  padding: 1px 6px;
}

.fragments-log {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 20px;
}

.fragment-entry {
  border-left: 2px solid var(--accent-dim);
  padding: 4px 0 4px 12px;
  color: var(--text);
  font-size: 14px;
}

.interpret-options {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-top: 16px;
}

.interpret-option {
  text-align: left;
  padding: 14px;
  border: 1px solid var(--panel-border);
  border-radius: 6px;
  background: var(--panel);
  cursor: pointer;
  color: var(--text);
}

.interpret-option:hover {
  border-color: var(--accent-dim);
}

.interpret-option .label {
  display: block;
  color: var(--accent);
  font-weight: bold;
  margin-bottom: 6px;
}

.archive-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin: 20px 0;
}

.archive-entry {
  border: 1px solid var(--panel-border);
  border-radius: 6px;
  padding: 12px 16px;
}

.archive-entry h3 {
  margin: 0 0 6px;
  font-size: 15px;
}

.archive-entry .chosen-reading {
  color: var(--accent);
  font-size: 13px;
  margin-top: 8px;
}

@media (prefers-reduced-motion: reduce) {
  * {
    animation: none !important;
    transition: none !important;
  }
}