* { box-sizing: border-box; }
html, body {
  margin: 0;
  height: 100%;
  background: #0b0b0b;
  font-family: system-ui, -apple-system, "Segoe UI", sans-serif;
}
.page {
  min-height: 100%;
  padding-bottom: calc(88px + env(safe-area-inset-bottom, 0px));
}
.hero {
  display: block;
  width: 100%;
  max-width: 720px;
  margin: 0 auto;
  height: auto;
  vertical-align: top;
}
.bar {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  padding: 12px 16px calc(12px + env(safe-area-inset-bottom, 0px));
  background: rgba(0, 0, 0, 0.72);
  backdrop-filter: blur(8px);
}
.bar-inner {
  max-width: 720px;
  margin: 0 auto;
}
.download {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  min-height: 48px;
  border: 0;
  border-radius: 10px;
  background: #16a34a;
  color: #fff;
  font-size: 17px;
  font-weight: 600;
  text-decoration: none;
  -webkit-tap-highlight-color: transparent;
}
.download:active { filter: brightness(0.92); }