* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html, body {
  height: 100%;
  font-family: "Segoe UI", "Segoe UI Web", -apple-system, BlinkMacSystemFont, Roboto, "Helvetica Neue", sans-serif;
  background: #ffffff;
  color: #1b1b1b;
  overflow: hidden;
}

.bg {
  position: fixed;
  inset: 0;
  z-index: -1;
  overflow: hidden;
  background: #ffffff;
}

.bg-svg {
  display: none;
}

.bg-stars {
  display: none;
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    radial-gradient(1.6px 1.6px at 4% 8%,    rgba(255,255,255,0.95), transparent 60%),
    radial-gradient(1.2px 1.2px at 9% 22%,   rgba(255,255,255,0.70), transparent 60%),
    radial-gradient(1.4px 1.4px at 14% 40%,  rgba(255,255,255,0.85), transparent 60%),
    radial-gradient(1px 1px     at 19% 64%,  rgba(255,255,255,0.60), transparent 60%),
    radial-gradient(1.5px 1.5px at 23% 78%,  rgba(255,255,255,0.90), transparent 60%),
    radial-gradient(1.1px 1.1px at 28% 14%,  rgba(255,255,255,0.65), transparent 60%),
    radial-gradient(1.3px 1.3px at 32% 52%,  rgba(255,255,255,0.80), transparent 60%),
    radial-gradient(1px 1px     at 36% 88%,  rgba(255,255,255,0.55), transparent 60%),
    radial-gradient(1.6px 1.6px at 41% 28%,  rgba(255,255,255,0.95), transparent 60%),
    radial-gradient(1.2px 1.2px at 45% 68%,  rgba(255,255,255,0.75), transparent 60%),
    radial-gradient(1px 1px     at 49% 10%,  rgba(255,255,255,0.60), transparent 60%),
    radial-gradient(1.4px 1.4px at 53% 44%,  rgba(255,255,255,0.85), transparent 60%),
    radial-gradient(1.1px 1.1px at 57% 82%,  rgba(255,255,255,0.70), transparent 60%),
    radial-gradient(1.5px 1.5px at 62% 20%,  rgba(255,255,255,0.90), transparent 60%),
    radial-gradient(1px 1px     at 66% 58%,  rgba(255,255,255,0.55), transparent 60%),
    radial-gradient(1.3px 1.3px at 70% 74%,  rgba(255,255,255,0.80), transparent 60%),
    radial-gradient(1.2px 1.2px at 74% 34%,  rgba(255,255,255,0.75), transparent 60%),
    radial-gradient(1.6px 1.6px at 78% 12%,  rgba(255,255,255,0.95), transparent 60%),
    radial-gradient(1px 1px     at 82% 62%,  rgba(255,255,255,0.60), transparent 60%),
    radial-gradient(1.4px 1.4px at 86% 86%,  rgba(255,255,255,0.85), transparent 60%),
    radial-gradient(1.1px 1.1px at 90% 30%,  rgba(255,255,255,0.70), transparent 60%),
    radial-gradient(1.5px 1.5px at 94% 54%,  rgba(255,255,255,0.90), transparent 60%),
    radial-gradient(1px 1px     at 97% 16%,  rgba(255,255,255,0.60), transparent 60%),
    radial-gradient(1.3px 1.3px at 6% 72%,   rgba(255,255,255,0.80), transparent 60%),
    radial-gradient(1.2px 1.2px at 38% 6%,   rgba(255,255,255,0.75), transparent 60%),
    radial-gradient(1px 1px     at 72% 92%,  rgba(255,255,255,0.55), transparent 60%);
  opacity: 1;
}

.card {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 440px;
  max-width: calc(100% - 32px);
  background: #ffffff;
  padding: 44px;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.18);
  border: 1px solid rgba(0, 0, 0, 0.06);
}

.step.hidden {
  display: none;
}

.ms-logo {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 28px;
  font-size: 15px;
  font-weight: 600;
  color: #1b1b1b;
  justify-content: center;
}

.title {
  font-size: 24px;
  font-weight: 600;
  color: #1b1b1b;
  margin-bottom: 12px;
  text-align: center;
}

.subtitle {
  font-size: 15px;
  color: #605e5c;
  margin-bottom: 22px;
  text-align: center;
}

.input {
  width: 100%;
  background: transparent;
  border: none;
  border-bottom: 1px solid #666666;
  padding: 6px 0 8px;
  font-size: 15px;
  color: #1b1b1b;
  outline: none;
  transition: border-color 0.15s ease;
}

.input::placeholder {
  color: #8a8886;
}

.input:focus {
  border-bottom: 2px solid #0067c0;
  padding-bottom: 7px;
}

.input.invalid {
  border-bottom: 2px solid #a80000;
  padding-bottom: 7px;
}

.error {
  min-height: 18px;
  font-size: 13px;
  color: #a80000;
  margin-top: 6px;
}

.link {
  display: inline-block;
  margin-top: 10px;
  color: #0067c0;
  font-size: 13px;
  text-decoration: none;
}

.link:hover {
  text-decoration: underline;
}

.btn-primary {
  display: block;
  width: 100%;
  margin-top: 28px;
  background: #0067c0;
  color: #ffffff;
  border: none;
  padding: 12px 16px;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.15s ease;
}

.btn-primary:hover {
  background: #0078d4;
}

.btn-primary:disabled {
  background: #f3f2f1;
  color: #a19f9d;
  cursor: not-allowed;
}

.meta {
  margin-top: 20px;
  font-size: 13px;
  color: #605e5c;
  text-align: center;
}

.back-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: transparent;
  border: none;
  color: #605e5c;
  font-size: 13px;
  cursor: pointer;
  margin-bottom: 16px;
  padding: 0;
}

.back-btn:hover {
  color: #1b1b1b;
}

.footer {
  position: fixed;
  bottom: 16px;
  left: 0;
  right: 0;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 22px;
  font-size: 12px;
  color: #605e5c;
  padding: 0 16px;
}

.footer a {
  color: #605e5c;
  text-decoration: none;
}

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

.footer-note {
  width: 100%;
  text-align: center;
  margin-top: 8px;
  color: #8a8886;
}

.footer-note a {
  color: #4cc2ff;
}

@media (max-width: 480px) {
  .card {
    padding: 32px 24px;
    width: calc(100% - 24px);
  }
  .footer {
    gap: 14px;
    font-size: 11px;
  }
}