:root {
  --primary: #3c71ff;
  --light-blue: #f1f5ff;
  --text-gray: #757575;
  --button-gray: #ababab;
  --black: #000000;
  --white: #ffffff;
  --danger-outline: #D71920;
  --danger-inner: #F5C4C6;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Interstate", sans-serif;
  background-color: var(--light-blue);
}

.container {
  max-width: 610px;
  height: 635px;
  min-width: 417px;
  background-color: var(--white);
  margin: 72px auto;
  padding: 24px;
  background-color: var(--white);
  border-radius: 4px;
  box-shadow: 0 0 10px rgba(0, 0, 0, 0.05);
}

.content-container {
  width: 400px;
  margin: 32px auto;
}

.back-link-wrapper{
    flex-grow: 1;
    padding-bottom: 4px;
    padding-left: 20px;
}

.back-link {
  display: flex;
  flex-direction: row;
  align-items: center;
  gap: 8px;
  width: 52px;
  color: var(--black);
  font-size: 14px;
  cursor: pointer;
}

.back-link:hover {
  border-bottom: 2px solid var(--primary);
}

h2 {
  margin: 0;
  font-size: 26px;
}

.warning{
  display: none;
  align-items: start;
  flex-grow: 1;
  margin-top: 16px;
  padding: 16px;
  gap: 12px;
  border: 1px solid var(--danger-outline);
  border-radius: 4px;
  background-color: var(--danger-inner);
}

p.subtitle {
  margin-bottom: 8px;
  color: #000;
  font-size: 18px;
  font-weight: 400;
}

.social-buttons {
  display: flex;
  gap: 20px;
  margin: 20px 0;
}

.social-buttons button {
  display: flex;
  flex: 1;
  align-items: center;
  gap: 12px;
  padding: 16px 12px;
  font-size: 13px;
  border: 1px solid var(--primary);
  background-color: white;
  color: var(--black);
  border-radius: 4px;
  cursor: pointer;
}

.social-buttons button:hover {
  background-color: var(--primary);
  color: var(--white);
}

.social-buttons button:hover img {
  filter: brightness(0) invert(1);
}

.social-buttons button svg {
  vertical-align: middle;
  margin-right: 6px;
}

.divider {
  display: flex;
  align-items: center;
  text-align: center;
  color: var(--black);
  margin: 20px 0;
}

.divider::after {
  content: "";
  flex: 1;
  border-bottom: 1px solid var(--black);
}

.divider:not(:empty)::after {
  margin-left: 0.5em;
}

form {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-top: 25px;
}

.row {
  display: flex;
  gap: 20px;
}

input[type="text"],
input[type="email"],
input[type="password"] {
  flex: 1;
  padding: 16px 12px;
  font-size: 14px;
  border: none;
  border-radius: 6px;
  background-color: var(--light-blue);
}

.password-field {
  position: relative;
}

.password-field input {
  width: 100%;
}

.form-group {
  position: relative;
}

.form-input {
  width: 100%;
  padding: 18px 12px 6px 12px;
  font-size: 16px;
  border: 2px solid #ccc;
  border-radius: 8px;
  background-color: #f3f6fe;
  outline: none;
}

.form-input:focus {
  border-color: var(--text-gray);
}

.form-label {
  position: absolute;
  left: 12px;
  top: 16px;
  color: var(--text-gray);
  font-size: 16px;
  pointer-events: none;
  transition: 0.2s ease all;
}

.form-input:focus + .form-label,
.form-input:not(:placeholder-shown) + .form-label {
  top: 6px;
  left: 12px;
  font-size: 12px;
  color: var(--text-gray);
}

.form-input:focus + .form-label {
  color: var(--text-gray);
}

/* optional eye icon container */
.input-wrapper {
  position: relative;
}
.eye {
  position: absolute;
  right: 12px;
  top: 50%;
  transform: translateY(-50%);
  cursor: pointer;
  font-size: 16px;
  color: #999;
}

.rules {
  display: none;
  margin: 8px 0;
  gap: 14px;
}

.rule {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  color: var(--text-gray);
  font-size: 10px;
}

.rule.valid span {
  color: var(--black);
}


.checkbox-container {
  font-size: 12px;
  display: flex;
  align-items: flex-start;
  gap: 8px;
  color: var(--text-gray);
  cursor: pointer;
  position: relative;
}

.checkbox-container input[type="checkbox"] {
  appearance: none;
  margin: 0;
  background-color: var(--button-gray);
  width: 26px;
  height: 18px;
  /* border: 2px solid #aaa; */
  border-radius: 2px;
}

.checkbox-container input[type="checkbox"]:checked {
  background-color: var(--primary);
}
.checkbox-container input[type="checkbox"]:checked::after {
  content: "";
  position: absolute;
  top: 2px;
  left: 5px;
  width: 4px;
  height: 8px;
  border: solid white;
  border-width: 0 2px 2px 0;
  transform: rotate(45deg);
}

button.submit {
  background-color: var(--primary);
  color: white;
  padding: 12px;
  border: none;
  border-radius: 6px;
  font-size: 15px;
  cursor: pointer;
}

button.submit:hover{
  box-shadow: var(--primary);
}

.login-link {
  text-align: center;
  font-size: 13 px;
  margin-top: 16px;
  color: var(--text-gray);
}

.login-link a {
  color: var(--primary);
  text-decoration: none;
  font-weight: bold;
}