* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
body {
  text-align: center;
}
section {
  margin: 0;
  padding: 0;
  line-height: 0;
}
.btn-analyze, .btn-join{ animation: btn-pulse 1s linear infinite; }

.wrap {
  position: relative;
  max-width: 720px;
  left: 50%;
  transform: translateX(-50%);
}

.form-area {
  position: absolute;
  width: 720px;
  text-align: center;
  top: 58%;
}
.form-area img { padding: 20px; }
.intro {
  position: absolute;
  width: 720px;
  text-align: center;
  top: 47%;
}
.extra {
  position: absolute;
  width: 720px;
  text-align: center;
  top: 34%;
}
.extra img { padding: 20px; }
.stock-input {
    width: 82%;
    height: 8%;
    border-radius: 1.5rem;
    border: 3px solid rgb(3 206 210);
    margin-top: 1rem;
    padding: 1rem 2rem;
    text-align: center;
    font-size: 28px;
    background: rgb(234 234 234);
    color: black;
}
.stock-input::placeholder { color: black; }
.msg-error {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  display: flex;
  z-index: 99999;
  align-items: center;
  justify-content: center;
  background: rgba(0, 0, 0, 0.7);
}
.msg-box {
  padding: 30px;
  line-height: 1.5;
  word-break: break-word;
  overflow: auto;
  font-size: 35px;
  color: #fff;
  background: rgba(0, 0, 0, 0.8);
  border-radius: 10px;
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.5);
  max-width: 750px;
  text-align: center;
  width: 100%;
  box-sizing: border-box;
}
@keyframes btn-pulse {
  0% { transform: scale(0.9); }
  50% { transform: scale(1); }
  100% { transform: scale(0.9); }
}