/* Tło */
.popup-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0,0,0,0.65);
  display: none;
  justify-content: center;
  align-items: center;
  z-index: 9999;
}

/* Okno popup */
.popup-content {
  background: #fff;
  padding: 30px;
  width: 90%;
  max-width: 90%;
  border-radius: 12px;
  position: relative;
  max-height: 90vh;
  overflow-y: auto;
}

/* X */
.popup-close {
  position: absolute;
  top: 15px;
  right: 20px;
  font-size: 28px;
  cursor: pointer;
}

/* Treść umowy */
.agreement-box {
  max-height: 50vh;
  overflow-y: auto;
  margin: 20px 0;
  padding: 15px;
  border: 1px solid #ddd;
  border-radius: 8px;
}

/* Przycisk Autenti */
.sign-btn {
  display: block;
  width: 100%;
  text-align: center;
  background: linear-gradient(90deg, #52f41b, #adff01);
  padding: 14px 20px;
  border-radius: 8px;
  color: #000;
  font-weight: 700;
  text-decoration: none;
  font-size: 18px;
}

.sign-btn:hover {
  opacity: 0.9;
}