:root {
  color-scheme: light;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: #1f2937;
  background: #f3f6f8;
}

* {
  box-sizing: border-box;
}

body {
  min-height: 100vh;
  margin: 0;
  display: grid;
  place-items: center;
  padding: 24px;
}

.card {
  width: min(100%, 440px);
  padding: 42px 34px;
  border-radius: 18px;
  background: #fff;
  box-shadow: 0 18px 50px rgba(31, 41, 55, .12);
  text-align: center;
}

.brand-logo {
  width: 108px;
  height: 108px;
  margin: 0 auto 22px;
  display: block;
  border-radius: 22px;
  object-fit: contain;
}

h1 {
  margin: 0 0 12px;
  font-size: 23px;
}

.status {
  min-height: 24px;
  margin: 0;
  color: #52606d;
  line-height: 1.5;
}

.status.error {
  color: #b42318;
}

.spinner {
  width: 28px;
  height: 28px;
  margin: 26px auto 0;
  border: 3px solid #d1fae5;
  border-top-color: #16a34a;
  border-radius: 50%;
  animation: spin .8s linear infinite;
}

.button {
  margin-top: 24px;
  padding: 12px 18px;
  border: 0;
  border-radius: 8px;
  background: #1877f2;
  color: #fff;
  cursor: pointer;
  font-size: 15px;
  font-weight: 650;
}

.button:hover {
  background: #166fe5;
}

.help {
  margin: 14px 0 0;
  color: #6b7280;
  font-size: 13px;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}