:root {
  color-scheme: dark;
  --bg: #07111f;
  --panel: #0f1c2d;
  --panel-border: rgba(255, 255, 255, 0.1);
  --text: #f5f7fb;
  --muted: #9eb1c9;
  --accent: #4ea2ff;
  --accent-soft: rgba(78, 162, 255, 0.15);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  height: 100vh;
  background: linear-gradient(180deg, #07111f 0%, #08182b 100%);
  color: var(--text);
  font: 14px/1.5 Inter, system-ui, sans-serif;
  overflow: hidden;
}

.tester-shell {
  height: 100vh;
  display: grid;
  grid-template-rows: auto 1fr;
}

.tester-header {
  padding: 8px 12px;
  border-bottom: 1px solid var(--panel-border);
  background: rgba(9, 18, 31, 0.9);
  backdrop-filter: blur(12px);
}

.eyebrow {
  margin: 0 0 6px;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 10px;
  font-weight: 700;
}

.tester-toolbar {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 10px;
  align-items: center;
}

.tester-main {
  min-height: 0;
}

.component-tabs {
  display: flex;
  gap: 6px;
  min-width: 0;
  overflow-x: auto;
}

.component-tab {
  flex: 0 0 auto;
  padding: 6px 10px;
  text-align: center;
  border-radius: 999px;
  border: 1px solid var(--panel-border);
  background: var(--panel);
  color: var(--text);
  cursor: pointer;
  white-space: nowrap;
}

.component-tab[aria-selected="true"] {
  border-color: var(--accent);
  background: linear-gradient(180deg, var(--accent-soft), rgba(15, 28, 45, 0.95));
}

.component-tab-label {
  display: inline;
  font-weight: 700;
  font-size: 12px;
}

.component-meta {
  color: var(--muted);
  font-size: 12px;
  white-space: nowrap;
}

.component-meta a {
  color: var(--accent);
  text-decoration: none;
}

.component-frame {
  width: 100%;
  height: 100%;
  border: 0;
  background: #0a1320;
}