:root {
  color-scheme: dark;
  --bg: #07080d;
  --text: #f4f7fb;
  --muted: #a7afbd;
  --border: rgba(255, 255, 255, 0.13);
  --blue: #0a84ff;
  --blue-dark: #0367d7;
}

* {
  box-sizing: border-box;
}

html,
body {
  height: 100%;
}

body {
  background: var(--bg);
  color: var(--text);
  display: flex;
  flex-direction: column;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  margin: 0;
  min-width: 320px;
  overflow-x: hidden;
  position: relative;
  -webkit-font-smoothing: antialiased;
}

#bg {
  height: 100%;
  left: 0;
  pointer-events: none;
  position: fixed;
  top: 0;
  width: 100%;
  z-index: -1;
}

a {
  color: inherit;
  text-decoration: none;
}

a:focus-visible {
  box-shadow: 0 0 0 3px rgba(10, 132, 255, 0.42);
  outline: none;
}

.site-header {
  align-items: center;
  display: flex;
  justify-content: space-between;
  margin: 0 auto;
  max-width: 960px;
  padding: 20px 24px;
  width: 100%;
}

.brand {
  align-items: center;
  display: inline-flex;
  font-size: 16px;
  font-weight: 800;
  gap: 10px;
}

.brand img {
  border-radius: 8px;
  display: block;
}

.support-link {
  border: 1px solid var(--border);
  border-radius: 999px;
  color: var(--muted);
  font-size: 14px;
  font-weight: 600;
  padding: 8px 16px;
  transition: color 150ms ease-out, border-color 150ms ease-out;
}

.support-link:hover {
  border-color: rgba(255, 255, 255, 0.3);
  color: var(--text);
}

.hero {
  align-items: center;
  display: flex;
  flex: 1;
  flex-direction: column;
  justify-content: center;
  margin: 0 auto;
  max-width: 640px;
  padding: 48px 24px;
  text-align: center;
}

.app-icon {
  border-radius: 27px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
  margin-bottom: 28px;
}

h1 {
  font-size: clamp(40px, 8vw, 56px);
  line-height: 1;
  margin: 0 0 20px;
}

.tagline {
  color: var(--muted);
  font-size: clamp(17px, 2.4vw, 20px);
  line-height: 1.55;
  margin: 0 0 36px;
}

.tagline strong {
  color: var(--text);
}

.cta-button {
  align-items: center;
  background: var(--blue);
  border-radius: 12px;
  color: white;
  display: inline-flex;
  font-size: 16px;
  font-weight: 700;
  gap: 10px;
  min-height: 52px;
  padding: 14px 24px;
  transition: background-color 150ms ease-out, transform 150ms ease-out;
}

.cta-button:hover {
  background: var(--blue-dark);
  transform: translateY(-1px);
}

.note {
  color: var(--muted);
  font-size: 13px;
  margin: 16px 0 0;
}

.site-footer {
  color: var(--muted);
  font-size: 13px;
  padding: 28px 24px;
  text-align: center;
}

.site-footer p {
  margin: 0;
}

@media (prefers-reduced-motion: reduce) {
  * {
    transition-duration: 0.01ms !important;
  }
}