@import url('https://fonts.googleapis.com/css2?family=Libre+Franklin:ital,wght@0,100..900;1,100..900&display=swap');

:root {
  --gray: hsl(0, 0%, 59%);
  --Pale-Blue: hsl(223, 100%, 88%);
  --Light-Red: hsl(354, 100%, 66%);
  --Blue: hsl(223, 87%, 63%);
  --Very-Dark-Blue: hsl(209, 33%, 12%);
  --Font-size: 20px;
}
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
body {
  font-family: 'libre franklin', sans-serif;
  font-size: var(--Font-size);
  min-height: 100vh;
}

.header {
  display: flex;
  justify-content: center;
  flex-direction: column;
  padding: 1em 1.5em 1em 1.5em;
  z-index: 9999;
}

.logo {
  margin: 2em auto;
}

h2 {
  font-weight: 700;
  font-size: 1.56rem;
  text-align: center;
  margin-bottom: 1em;
  transition: all 0.4s ease-in;
  color: var(--Very-Dark-Blue);
}

p {
  font-size: 1rem;
  font-weight: 300;
  text-align: center;
}

span {
  color: var(--gray);
  font-weight: 300;
}

.main {
  display: flex;
  flex-direction: column;
  padding-inline: 1.5em;
}

#input {
  width: 100%;
  margin: 1em auto;
  outline: var(--Pale-Blue) 1px solid;
  border: none;
  padding: 1.2em;
  padding-left: 2em;
  border-radius: 30px;
  font-weight: 300;
}

#input::placeholder {
  color: hsl(223, 100%, 88%);
  font-size: 1rem;
  font-weight: 300;
  opacity: 0.7;
}

#input:user-invalid {
  outline: var(--Light-Red) 1px solid;
  border: none;
}

.btn {
  width: 100%;
  margin: 0 auto;
  margin-bottom: 5.5em;
  background-color: var(--Blue);
  border: none;
  padding: 1.2em;
  color: white;
  text-decoration: none;
  border-radius: 30px;
  font-weight: 700;
  cursor: pointer;
}

button:active {
  transform: translateY(0.5px);
  transition: all 0.2s ease;
  filter: brightness(120%) drop-shadow(5px 5px 20px var(--Pale-Blue));
}

button:hover {
  filter: brightness(120%) drop-shadow(5px 5px 20px var(--Pale-Blue));
}

.image {
  width: 100%;
  margin-bottom: 5em;
}

.socials {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 1em;
  margin-bottom: 2em;
}

.socials div {
  display: flex;
  justify-content: center;
  align-items: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: solid var(--Pale-Blue) 1px;
  padding: 0.5em;
  cursor: pointer;
}

.socials div:hover {
  border: var(--Blue) solid;
}

.copyright p {
  color: var(--gray);
  font-size: 0.9rem;
  margin-bottom: 1em;
}

.menu {
  position: sticky;
  height: 40px;
  width: 40px;
  right: 100%;
  z-index: 9999;
}

.menu-dropdown {
  position: absolute;
  top: 3em;
  height: 55%;
  width: 90%;
  left: 1em;
  background-color: #f9f9f9;
  padding: 1em;
  border-radius: 15px;
  z-index: 9999;
  display: flex;
  justify-content: center;
  align-items: center;
}

.list {
  display: flex;
  justify-content: center;
  align-items: center;
  flex-direction: column;
  position: absolute;
  top: 2em;
  list-style: none;
  color: var(--Very-Dark-Blue);
}

.list li {
  margin-bottom: 2em;
  border-bottom: 1px solid var(--gray);
}

.hidden {
  display: none;
}

.attribution {
  font-size: 14px;
  text-align: center;
  margin-bottom: 0.5em;
}

.attribution a {
  color: var(--Very-Dark-Blue);
}

.overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  min-height: 100vh;
  background-color: rgba(0, 0, 0, 0.3);
  backdrop-filter: blur(1px);
  z-index: 5;
}

#error-message {
  color: var(--Light-Red);
  margin-bottom: 0.5em;
  font-size: 0.9rem;
}

@media (min-width: 48em) and (max-width: 63.9375em) {
  .header {
    padding: 2.5em 2.5em 1.5em 2.5em;
  }

  .menu {
    display: none;
  }

  h2 {
    font-size: 2rem;
    margin-bottom: 0.3em;
  }

  p {
    font-size: 1rem;
  }

  #input {
    width: 70%;
    margin: 0;
  }

  .btn {
    width: 70%;
    margin-bottom: 6em;
  }

  .email-section {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    gap: 0.5em;
  }

  .main-image {
    width: 70%;
    margin: 0 auto;
  }
}

@media (min-width: 64em) {
  .header {
    padding: 2em 2.5em 2em 2.5em;
  }

  h2 {
    font-size: 2.5rem;
    margin-bottom: 0.3em;
  }

  p {
    font-size: 1.1rem;
  }

  .email-section {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.8em;
    margin-bottom: 3em;
  }

  #input {
    width: 30%;
    margin: 0;
    font-size: 1rem;
    color: var(--Very-Dark-Blue);
  }

  .btn {
    width: 17%;
    margin: 0;
  }

  .main-image {
    width: 45%;
    margin: 0 auto;
  }

  .menu {
    display: none;
  }

  #error-message {
    position: absolute;
    top: 24em;
    margin-bottom: 0;
  }
}