*,
*::before,
*::after {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  background: linear-gradient(135deg, #f0f4ff 0%, #e8f0fe 100%);
  color: #1f2937;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}

.card {
  background: #fff;
  border-radius: 16px;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.08);
  padding: 48px 40px;
  max-width: 480px;
  width: 100%;
  text-align: center;
}

.logo {
  font-size: 48px;
  margin-bottom: 8px;
}

h1 {
  font-size: 1.75rem;
  font-weight: 700;
  margin: 0 0 12px;
  color: #111827;
}

.subtitle {
  color: #6b7280;
  font-size: 1rem;
  line-height: 1.6;
  margin: 0 0 32px;
}

.btn-google {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  background: #fff;
  color: #3c4043;
  border: 1px solid #dadce0;
  border-radius: 8px;
  padding: 12px 24px;
  font-size: 1rem;
  font-weight: 500;
  text-decoration: none;
  cursor: pointer;
  transition: box-shadow 0.2s, background 0.2s;
  min-width: 240px;
}

.btn-google:hover {
  background: #f8f9fa;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.12);
}

.btn-google svg {
  flex-shrink: 0;
}

.privacy-note {
  margin-top: 24px;
  font-size: 0.8125rem;
  color: #9ca3af;
  line-height: 1.5;
}

.success-icon {
  font-size: 64px;
  margin-bottom: 16px;
}

/* Modal */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.45);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  z-index: 1000;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.25s, visibility 0.25s;
}

.modal-overlay.visible {
  opacity: 1;
  visibility: visible;
}

.modal {
  background: #fff;
  border-radius: 16px;
  padding: 40px 32px;
  max-width: 440px;
  width: 100%;
  text-align: center;
  box-shadow: 0 16px 48px rgba(0, 0, 0, 0.2);
  transform: translateY(16px);
  transition: transform 0.25s;
}

.modal-overlay.visible .modal {
  transform: translateY(0);
}

.modal h2 {
  font-size: 1.375rem;
  margin: 0 0 16px;
  color: #111827;
}

.modal p {
  color: #4b5563;
  line-height: 1.6;
  margin: 0 0 28px;
}

.btn-dismiss {
  background: #1a73e8;
  color: #fff;
  border: none;
  border-radius: 8px;
  padding: 12px 32px;
  font-size: 1rem;
  font-weight: 500;
  cursor: pointer;
  transition: background 0.2s;
}

.btn-dismiss:hover {
  background: #1557b0;
}