* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: "Arial", sans-serif;
}
:root {
  --color-primary: #5955b3;
  --color-primary-dark: #4d49a1;
  --color-primary-light: #5a47ff;
  --color-grey-dark-1: #333;
  --color-grey-dark-2: #707070;
  --color-danger: #ff3333;
  --color-grey-light-1: #f7f7f7;
  --color-grey-light-2: #eae9e9;
  --fs-1: 4.2rem;
  --fs-2: 3.4rem;
  --fs-3: 2.8rem;
  --fs-4: 2rem;
  --fs-5: 1.8rem;
  --fs-6: 1.6rem;
  --fs-7: 1.4rem;
}
html {
  font-size: 62.5%;
}
body {
  background-color: var(--color-primary);
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh;
  font-size: 1.6rem;
  overflow: hidden;
}
.authentcation-container {
  padding-top: 4rem;
}

.container {
  display: flex;
  margin: 5rem;
  margin-top: 11.5rem;
  max-width: 130rem;
  background-color: var(--color-grey-light-1);
  border-radius: 3rem 3rem 0 0;
  overflow: hidden;
}

/* Form Section Styling */
.form-section {
  width: 50%;
  padding: 3rem;
  background-color: var(--color-grey-light-1);
  color: var(--color-grey-dark-1);
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
  transition: opacity 0.5s ease-in-out;
}

.hidden {
  display: none;
}

.form-content h1 {
  font-size: 3.2rem;
  color: var(--color-primary-dark);
  margin-bottom: 1rem;
  font-style: italic;
  align-self: flex-start;
}
.form-content h3 {
  font-weight: 900;
}
/* .form-content h2 {
  font-weight: bold;
  color: #333;
  margin-bottom: 1rem;
} */

.form-content p {
  margin-bottom: 2rem;
  color: var(--color-grey-dark-2);
  font-style: italic;
}

.form-content a {
  color: var(--color-primary);
  text-decoration: none;
}

form {
  display: flex;
  flex-direction: column;
}

label {
  margin-bottom: 1rem;
  font-weight: bold;
  color: var(--color-grey-dark-1);
}

input {
  padding: 2.5rem;
  margin-bottom: 2rem;
  border-radius: 1.2rem; /* Updated for rounded corners */
  box-shadow: 0rem 0.4rem 1rem rgba(0, 0, 0, 0.3);
  border: 3px solid transparent;
  font-size: 1.6rem;
  background-color: var(--color-grey-light-1);
  width: 90%;
  transition: border-color 0.3s ease-in-out;
}
.id-input {
  padding: 2.5rem;
  margin-bottom: 2rem;
  border-radius: 1.2rem; /* Updated for rounded corners */
  box-shadow: 0rem 4px 1rem rgba(0, 0, 0, 0.3);
  border-bottom: 3px solid transparent;
  font-size: 2rem;
  background-color: var(--color-grey-light-1);
  border-top-left-radius: 2rem;
  border-top-right-radius: 2rem;
  border-bottom-left-radius: 0rem;
  border-bottom-right-radius: 0rem;
  /* width: 90%; */
  transition: border-color 0.3s ease-in-out;
}
.signup-id {
  padding: 2.5rem;
  margin-bottom: 2rem;
  border-radius: 1.2rem; /* Updated for rounded corners */
  box-shadow: 0rem 0.4rem 1rem rgba(0, 0, 0, 0.3);
  border: 3px solid transparent;
  font-size: 1.6rem;
  background-color: var(--color-grey-light-1);
  border-top-left-radius: 2rem;
  border-top-right-radius: 2rem;
  border-bottom-left-radius: 0.3rem;
  border-bottom-right-radius: 0.3rem;
  /* width: 90%; */
  transition: border-color 0.3s ease-in-out;
}

/*///////////////////////// Css Validation //////////////////////*/
input:focus {
  outline: none;
  /* border: 3px solid var(--color-primary); */
  /* border-color: var(--color-primary); Change color on focus */
}
input::placeholder {
  color: var(--color-grey-dark-2);
}
input:valid {
  border-bottom: 3px solid var(--color-primary);
}
input:focus:not(:valid) {
  border-bottom: 3px solid var(--color-danger);
}
.sign-in-btn {
  padding: 2.5rem;
  background-color: var(--color-primary);
  border: none;
  color: var(--color-grey-light-1);
  font-weight: bold;
  border-radius: 1.2rem;
  border-bottom-left-radius: 2rem;
  border-bottom-right-radius: 2rem;
  border-top-left-radius: 0.3rem;
  border-top-right-radius: 0.3rem;
  cursor: pointer;
  box-shadow: 0px 1rem 1.7rem rgba(10, 8, 10, 0.5);
  font-size: 1.8rem;
  width: 90%;
  transition: all 0.3s ease-in-out;
}

.sign-in-btn:hover {
  background-color: var(--color-primary-dark);
  transform: scale(0.95);
}

/* Image Section Styling */
.image-section {
  display: flex;
  justify-content: center;
  align-items: center;
  width: 50%;
  position: relative;
  box-shadow: 0rem 0rem 1.5rem rgba(0, 16, 64, 0.3);
  border-radius: 3rem;
  transition: transform 1s ease-out;
}

.image-section img {
  width: 95%;
  height: auto;
  border-radius: 1.5rem;
}

/* Moves left */
.image-section.slide-left {
  transform: translateX(0%);
}
/* Moves right */
.image-section.slide-right {
  transform: translateX(0%);
}
.form__label {
  font-size: 1.8rem;
}
.form__title {
  font-weight: bold;
  color: var(--color-grey-dark-1);
  margin-bottom: 1rem;
  font-size: 2.4rem;
}
.form__subtitle {
  font-size: 1.6rem;
}
@media screen and (max-width: 87.5em) {
  html {
    font-size: 55%;
  }
  .container {
    margin: 0;
  }
}
@media screen and (max-width: 37.5em) {
  html {
    font-size: 50%;
  }
  .form-section {
    width: 100%;
  }
  .container {
    flex-direction: column;
  }
  .image-section {
    width: 100%;
    order: -1;
    padding-top: 4rem;
    padding-bottom: 2rem;
  }
  input {
    width: 100%;
  }
  .sign-in-btn {
    width: 100%;
  }
}