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

body {
  font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
  font-weight: 300;
  background-color: #d7e1ea;
  color: #050632;
  height: 100vh;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.container {
  width: 100%;
  max-width: 1200px;
  position: relative;
  opacity: 0;
  animation: fadeIn 0.8s ease-out forwards;
}

header {
  position: absolute;
  top: -80px;
  left: 0;
  opacity: 0;
  animation: fadeIn 0.8s ease-out 0.2s forwards;
}

.logo-container {
  display: flex;
  align-items: center;
  gap: 10px;
}

.logo {
  width: 45px;
  height: 45px;
}

.logo-text {
  font-size: 24px;
  font-weight: 300;
  color: #050632;
  letter-spacing: -0.5px;
}

.content {
  text-align: center;
  padding: 60px 20px;
}

.main-heading {
  font-size: 96px;
  font-weight: 300;
  margin-bottom: 20px;
  letter-spacing: -3px;
  opacity: 0;
  animation: fadeIn 0.8s ease-out 0.3s forwards;
}

.subheading {
  font-size: 24px;
  font-weight: 300;
  margin-bottom: 80px;
  opacity: 0;
  animation: fadeIn 0.8s ease-out 0.4s forwards;
}

.form-section {
  opacity: 0;
  animation: fadeIn 0.8s ease-out 0.5s forwards;
}

.form-heading {
  font-size: 24px;
  font-weight: 300;
  margin-bottom: 40px;
}

.waitlist-form {
  display: flex;
  justify-content: center;
  width: 100%;
}

.form-inputs {
  display: flex;
  gap: 15px;
  align-items: center;
  max-width: 700px;
  width: 100%;
  position: relative;
  transition: gap 0.4s ease;
}

.input-field {
  flex: 1;
  padding: 16px 20px;
  font-size: 18px;
  font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
  font-weight: 300;
  background-color: rgba(170, 73, 234, 0.1);
  border: none;
  border-radius: 8px;
  color: #050632;
  outline: none;
  transition: all 0.4s ease;
  position: relative;
}

.input-field::placeholder {
  color: rgba(5, 6, 50, 0.5);
  transition: opacity 0.3s ease;
}

.input-field:focus {
  background-color: rgba(170, 73, 234, 0.15);
}

.input-field.merging {
  background-color: #050632;
  color: transparent;
  cursor: default;
}

.input-field.merging::placeholder {
  opacity: 0;
}

#name.merging {
  border-radius: 8px 0 0 8px;
}

#email.merging {
  border-radius: 0 8px 8px 0;
}

.submit-btn {
  height: 52px;
  width: 52px;
  background-color: rgba(170, 73, 234, 0.1);
  border: none;
  border-radius: 8px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.4s ease;
  flex-shrink: 0;
}

.submit-btn:hover {
  background-color: rgba(170, 73, 234, 0.15);
  transform: translateX(2px);
}

.submit-btn:active {
  transform: translateX(0);
}

.submit-btn.hiding {
  width: 0;
  opacity: 0;
  padding: 0;
  overflow: hidden;
}

.checkmark-overlay {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  z-index: 10;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.checkmark-overlay.show {
  opacity: 1;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Responsive design */
@media (max-width: 768px) {
  body {
    align-items: flex-start;
    padding: 0;
  }

  .container {
    padding-top: 80px;
  }

  header {
    position: fixed;
    top: 20px;
    left: 20px;
    right: auto;
    background-color: transparent;
    padding: 0;
    z-index: 1000;
  }

  .content {
    padding-top: 80px;
    padding-bottom: 40px;
    padding-left: 20px;
    padding-right: 20px;
  }

  .logo {
    width: 40px;
    height: 40px;
  }

  .logo-text {
    font-size: 20px;
  }

  .main-heading {
    font-size: 56px;
  }

  .subheading {
    font-size: 18px;
    margin-bottom: 60px;
  }

  .form-heading {
    font-size: 18px;
  }

  .form-inputs {
    flex-direction: column;
    max-width: 400px;
  }

  .input-field {
    width: 100%;
    font-size: 16px;
    padding: 14px 18px;
    transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
  }

  .submit-btn {
    width: 100%;
    height: 48px;
    transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
  }

  /* Mobile collapsing styles */
  #name.collapsing-mobile {
    transform: translateY(100%);
    opacity: 0;
    height: 0;
    padding: 0;
    margin: 0;
    background-color: #050632;
  }

  #email.collapsing-mobile {
    transform: translateY(50%);
    opacity: 0;
    height: 0;
    padding: 0;
    margin: 0;
    background-color: #050632;
  }

  .submit-btn.collapsing-mobile {
    background-color: #050632;
    transform: translateY(0);
  }

  .submit-btn svg {
    transition: opacity 0.3s ease;
  }
}

@media (max-width: 480px) {
  .container {
    padding-top: 70px;
  }

  header {
    top: 20px;
    left: 20px;
  }

  .content {
    padding-top: 60px;
    padding-left: 20px;
    padding-right: 20px;
  }

  .main-heading {
    font-size: 42px;
    letter-spacing: -2px;
  }

  .subheading {
    font-size: 16px;
    margin-bottom: 50px;
  }

  .form-heading {
    font-size: 16px;
  }

  .logo-text {
    font-size: 18px;
  }

  .logo {
    width: 35px;
    height: 35px;
  }
}