:root {
  --bg: #f7f7f5;
  --text: #1a1a1a;
  --muted: #6b6b6b;
  --accent: #2f6fed;
  --border: #e2e2de;
}

:root[data-theme="dark"] {
  --bg: #121212;
  --text: #f0f0f0;
  --muted: #9a9a9a;
  --accent: #7aa2ff;
  --border: #2a2a2a;
}

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

body {
  margin: 0;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background: var(--bg);
  color: var(--text);
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  line-height: 1.6;
  transition: background 0.3s, color 0.3s;
}

.hero {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  padding: 2rem 1rem;
  text-align: center;
}

.eyebrow {
  margin: 0 0 0.5rem;
  color: var(--accent);
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
}

h1 {
  margin: 0;
  font-size: clamp(2.5rem, 8vw, 5rem);
  font-weight: 700;
  letter-spacing: -0.03em;
}

.lead {
  max-width: 32rem;
  margin: 1rem 0 0;
  color: var(--muted);
  font-size: 1.1rem;
}

.footer {
  padding: 1.5rem 1rem;
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 0.85rem;
  text-align: center;
}

.theme-toggle {
  position: fixed;
  top: 1rem;
  right: 1rem;
  width: 2.5rem;
  height: 2.5rem;
  border: 1px solid var(--border);
  border-radius: 50%;
  background: transparent;
  color: var(--text);
  font-size: 1.1rem;
  cursor: pointer;
}

.theme-toggle:hover {
  border-color: var(--accent);
}