:root {
  --color-background: #ffffff;
  --color-foreground: #1a1a1a;
  --color-muted: #6b6b6b;
  --color-border: #e2e2e2;
  --color-accent: #1e3a8a;
  --color-accent-foreground: #ffffff;
  --radius: 4px;
  --font-sans: Inter, "PT Sans", Roboto, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

html, body {
  height: 100%;
}

body {
  margin: 0;
  background: var(--color-background);
  color: var(--color-foreground);
  font-family: var(--font-sans);
  -webkit-font-smoothing: antialiased;
}

.page {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 8vh 6vw;
  max-width: 900px;
  margin: 0 auto;
}

.heading {
  font-size: clamp(1.1rem, 1.8vw, 1.5rem);
  font-weight: 500;
  color: var(--color-muted);
  margin: 0 0 2.5rem 0;
  text-align: center;
}

.quote {
  margin: 0;
  width: 100%;
  text-align: center;
}

.quote-text {
  font-size: clamp(1.5rem, 4vw, 2.75rem);
  font-weight: 600;
  line-height: 1.35;
  margin: 0;
  color: var(--color-foreground);
}

.quote-text::before {
  content: "\201C";
}

.quote-text::after {
  content: "\201D";
}

.quote-source {
  margin-top: 1.75rem;
  font-size: clamp(0.95rem, 1.4vw, 1.15rem);
  color: var(--color-muted);
  font-style: normal;
  text-align: right;
}

.copy-btn {
  margin-top: 3.5rem;
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  min-height: 44px;
  min-width: 44px;
  padding: 0.65rem 1.4rem;
  background: var(--color-background);
  color: var(--color-foreground);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  font-family: inherit;
  font-size: 0.95rem;
  font-weight: 500;
  cursor: pointer;
  transition: background-color 150ms ease, border-color 150ms ease;
}

.copy-btn:hover {
  background: #f5f5f5;
  border-color: #cfcfcf;
}

.copy-btn:focus-visible {
  outline: 3px solid var(--color-accent);
  outline-offset: 2px;
}

.copy-btn.copied {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

.copy-icon {
  flex-shrink: 0;
}

@media (prefers-reduced-motion: reduce) {
  .copy-btn {
    transition: none;
  }
}

@media (max-width: 480px) {
  .quote-source {
    text-align: center;
  }
}