:root {
  --color-text: #1a1a2e;
  --color-text-muted: #64748b;
  --color-bg: #f8fafc;
  --color-surface: #ffffff;
  --color-border: #e2e8f0;
  --color-primary: #3b82f6;
  --color-primary-hover: #2563eb;
  --font-heading: Avenir, Montserrat, Corbel, "URW Gothic", source-sans-pro,
    sans-serif;
  --font-body: ui-rounded, "Hiragino Maru Gothic ProN", Quicksand, Comfortaa,
    Manjari, "Arial Rounded MT", "Arial Rounded MT Bold", Calibri,
    source-sans-pro, sans-serif;
}

@media (prefers-color-scheme: dark) {
  :root {
    --color-text: #f1f5f9;
    --color-text-muted: #94a3b8;
    --color-bg: #0f172a;
    --color-surface: #1e293b;
    --color-border: #334155;
    --color-primary: #60a5fa;
    --color-primary-hover: #93bbfd;
  }
}

*,
*::before,
*::after {
  margin: 0;
}

body {
  font-family: var(--font-body);
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

main {
  min-block-size: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 24px;
  text-align: center;
}

h1 {
  font-family: var(--font-heading);
  font-size: clamp(2.5rem, 6vw, 4rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-block-end: 16px;
}

.tagline {
  font-size: clamp(1.1rem, 2.5vw, 1.35rem);
  color: var(--color-text-muted);
  line-height: 1.6;
  margin-block-end: 32px;
}

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

.tagline a:hover {
  text-decoration: underline;
}

.features {
  list-style: none;
  padding: 0;
  margin-block-end: 40px;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
}

.cta {
  display: inline-block;
  background: var(--color-primary);
  color: #fff;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 1rem;
  padding: 12px 28px;
  border-radius: 10px;
  text-decoration: none;
  transition: background 0.15s;
}

.cta:hover {
  background: var(--color-primary-hover);
}

.links {
  margin-block-start: 24px;
  display: flex;
  gap: 24px;
  font-size: 0.9rem;
}

.links a {
  color: var(--color-text-muted);
  text-decoration: none;
}

.links a:hover {
  color: var(--color-primary);
}