:root {
  color-scheme: light;
  --bg: #f7f8fa;
  --ink: #111827;
  --muted: #667085;
  --line: #d9e1ea;
  --panel: #ffffff;
  --accent: #087f74;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100svh;
  display: grid;
  place-items: center;
  background: var(--bg);
  color: var(--ink);
  font-family: Inter, "PingFang SC", "Microsoft YaHei", ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

.login {
  width: min(100% - 32px, 380px);
  display: grid;
  justify-items: center;
  gap: 22px;
}

h1 {
  margin: 0;
  font-size: clamp(34px, 8vw, 54px);
  line-height: 1;
  letter-spacing: 0;
}

.qr-link {
  display: grid;
  place-items: center;
  width: 292px;
  height: 292px;
  border: 12px solid var(--panel);
  border-radius: 8px;
  background: var(--panel);
  box-shadow: 0 18px 48px rgba(17, 24, 39, 0.1);
}

.qr-box {
  display: grid;
  place-items: center;
  width: 252px;
  height: 252px;
}

.qr-box img {
  display: block;
  width: 252px;
  height: 252px;
  object-fit: contain;
}

.qr-state {
  margin: 0;
  min-height: 20px;
  color: var(--muted);
  font-size: 14px;
}

@media (max-width: 420px) {
  .login {
    width: min(100% - 24px, 360px);
  }

  .qr-link {
    width: 276px;
    height: 276px;
  }

  .qr-box,
  .qr-box svg {
    width: 236px;
    height: 236px;
  }
}