:root {
  --ink: #1f1d1a;
  --muted: #6c675f;
  --line: #dfddd6;
  --accent: #2f46c8;
  --paper: #f7f7f5;
}

* {
  box-sizing: border-box;
}

[hidden] {
  display: none !important;
}

body {
  margin: 0;
  font-family: system-ui, -apple-system, "Segoe UI", sans-serif;
  color: var(--ink);
  background: var(--paper);
}

.page {
  max-width: 600px;
  margin: 0 auto;
  padding: 2rem 1.25rem;
}

.page h1 {
  margin: 0 0 1.25rem;
  font-size: 1.4rem;
}

.tabs__list {
  display: flex;
  gap: 0.25rem;
  overflow-x: auto;
  border-bottom: 1px solid var(--line);
}

.tabs__tab {
  padding: 0.7rem 1rem;
  font: inherit;
  color: var(--muted);
  background: none;
  border: 0;
  border-bottom: 3px solid transparent;
  cursor: pointer;
  white-space: nowrap;
}

.tabs__tab:hover {
  color: var(--ink);
}

.tabs__tab[aria-selected="true"] {
  color: var(--ink);
  font-weight: 600;
  border-bottom-color: var(--accent);
}

.tabs__tab:focus-visible,
.tabs__panel:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: -3px;
}

.tabs__panel {
  padding: 1.25rem 0.25rem;
  line-height: 1.6;
}

.tabs__panel p {
  margin: 0;
}