@import url("https://fonts.googleapis.com/css2?family=IBM+Plex+Mono:wght@400;500&family=IBM+Plex+Sans:ital,wght@0,400;0,500;0,600;0,700;1,400&family=Source+Serif+4:ital,opsz,wght@0,8..60,400;0,8..60,600;1,8..60,400&display=swap");

:root {
  --color-bg: #fafaf9;
  --color-surface: #ffffff;
  --color-surface-hover: #f5f5f4;
  --color-border: #e7e5e4;
  --color-primary: #2c5ea8;
  --color-primary-hover: #1e4a85;
  --color-text: #1c1917;
  --color-text-muted: #78716c;
  --color-success: #15803d;
  --color-success-subtle: #f0f7f2;
  --color-danger: #c2412c;
  --color-danger-hover: #9a3622;
  --color-danger-subtle: #fee2e2;
  --radius-sharp: 1px;
  --radius-sm: 4px;
  --radius-md: 6px;
  --radius-lg: 8px;
  --radius: var(--radius-lg);
  --font-sans: "IBM Plex Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-serif: "Source Serif 4", Georgia, serif;
  --font-mono: "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
  --font: var(--font-sans);
  --text-display: clamp(2rem, 5vw, 3rem);
  --text-headline: 1.25rem;
  --text-body: 1rem;
  --text-label: 0.75rem;
  --text-caption: 0.625rem;
  /* Shared box padding: question card padding and answer text inset are the
     same, so question and answer text share identical edges. */
  --card-pad: 1.1rem 1.2rem;
}

*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-family: var(--font);
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
}

body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.appRoot {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

.appBody {
  flex: 1;
  display: flex;
  flex-direction: column;
}

a {
  color: var(--color-primary);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}