.alert-box {
  display: none; position: fixed; inset: 0;
  background: rgba(0,0,0,0.55); z-index: 9999;
  align-items: center; justify-content: center;
}
.alert-box.show { display: flex; }
.alert-content {
  background: var(--white); padding: 40px 48px;
  border-radius: var(--r); text-align: center;
  border-top: 4px solid var(--accent);
  box-shadow: 0 20px 60px rgba(0,0,0,0.2);
  max-width: 400px; width: 90%;
}
.alert-content h2 {
  font-family: var(--font-display); font-size: 1.4rem;
  color: var(--text); margin-bottom: 12px;
}
.alert-content p { font-size: 0.9rem; color: var(--text-soft); margin-bottom: 24px; }
.alert-content button {
  background: var(--accent); color: var(--white);
  border: none; padding: 10px 32px; border-radius: var(--r);
  font-size: 0.88rem; font-weight: 600; cursor: pointer;
  transition: background var(--trans);
}
.alert-content button:hover { background: var(--accent-dk); }