:root {
  /* Color shades */
  --s-0: 0%;
  --s-10: 10%;
  --s-20: 20%;
  --s-30: 30%;
  --s-40: 40%;
  --s-50: 50%;
  --s-60: 60%;
  --s-70: 70%;
  --s-80: 80%;
  --s-90: 90%;
  --s-100: 100%;

  /* White */
  --white: var(--white-100);
  --white-0: hsl(0, 0%, var(--s-0));
  --white-10: hsl(0, 0%, var(--s-10));
  --white-20: hsl(0, 0%, var(--s-20));
  --white-30: hsl(0, 0%, var(--s-30));
  --white-40: hsl(0, 0%, var(--s-40));
  --white-50: hsl(0, 0%, var(--s-50));
  --white-60: hsl(0, 0%, var(--s-60));
  --white-70: hsl(0, 0%, var(--s-70));
  --white-80: hsl(0, 0%, var(--s-80));
  --white-90: hsl(0, 0%, var(--s-90));
  --white-100: hsl(0, 0%, var(--s-100));

  /* Background color */
  --background-light: var(--white);
  --background: var(--white-90);
  --background-dark: var(--white-80);

  /* Text colors */
  --text: var(--white-20);
  --text-secondary: var(--white-60);
  --text-button: var(--white-100);

  /* Primary color */
  --primary-hue: 190;
  --primary: var(--primary-50);
  --primary-10: hsl(var(--primary-hue), 100%, var(--s-10));
  --primary-20: hsl(var(--primary-hue), 100%, var(--s-20));
  --primary-30: hsl(var(--primary-hue), 100%, var(--s-30));
  --primary-40: hsl(var(--primary-hue), 100%, var(--s-40));
  --primary-50: hsl(var(--primary-hue), 100%, var(--s-50));
  --primary-60: hsl(var(--primary-hue), 100%, var(--s-60));
  --primary-70: hsl(var(--primary-hue), 100%, var(--s-70));
  --primary-80: hsl(var(--primary-hue), 100%, var(--s-80));
  --primary-90: hsl(var(--primary-hue), 100%, var(--s-90));
  --primary-100: hsl(var(--primary-hue), 100%, var(--s-100));
}

/* Reset */
* {
  margin: 0;
  padding: 0;
}

a {
  text-decoration: none;
}

/* Setup body */
body {
  width: 100vw;
  overflow-x: hidden;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: start;
  font-family: Arial, Helvetica, sans-serif;
  background-color: var(--background);
}

/* Setup header */
header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 4.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background-color: var(--background-light);
  box-shadow: 0 3px 8px rgba(0, 0, 0, 0.15);
  z-index: 1000000;
}

header .logo-box {
  position: relative;
  margin-left: 2rem;
  width: auto;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: start;
  gap: 0.7rem;
}

.logo-box .logo {
  width: 2.5rem;
  height: 2.5rem;
  display: grid;
  place-items: center;
  border-radius: 10px;
  background-color: var(--primary);
}

.logo .logo-letters {
  font-size: 16px;
  font-weight: 600;
  color: var(--white);
}

.logo-box .logo-text {
  font-size: 20px;
  color: var(--text);
}

header nav {
  position: relative;
  margin-right: 2rem;
  width: auto;
  height: auto;
  display: flex;
  gap: 0.5rem;
}

nav .header-link {
  font-size: 18px;
  padding: 6px 12px;
  color: var(--text-secondary);
  border-bottom: 5px solid transparent;
}

nav .header-link:hover {
  transition: 0.3s ease;
  cursor: pointer;
  border-bottom: 5px solid var(--primary);
}

.menu-button,
.sidebar {
  display: none;
}

@media screen and (max-width: 1200px) {
  header .logo-box {
    margin-left: 1rem;
  }
  header nav {
    margin-right: 1rem;
  }
}

@media screen and (max-width: 750px) {
  .logo-box .logo-text {
    font-size: 18px;
  }

  header nav {
    display: none;
  }

  .menu-button {
    display: block;
    position: relative;
    margin-right: 1rem;
    width: 2.3rem;
    height: 2.3rem;
    font-size: 24px;
    border-radius: 8px;
    border: none;
    background-color: transparent;
  }

  .menu-button:hover {
    transition: 0.3s ease;
    cursor: pointer;
    background-color: var(--background);
  }

  .menu-button:focus {
    transition: 0.3s ease;
    cursor: pointer;
    background-color: var(--background-dark);
  }

  .sidebar {
    position: absolute;
    right: 0;
    display: none;
    flex-direction: column;
    width: 90%;
    height: 100vh;
    background-color: var(--background-light);
    box-shadow: -3px 0 15px rgba(0, 0, 0, 0.15);
    z-index: 1100000;

    /*     animation: sidebarIn 1s 0s forwards; */
  }

  @keyframes sidebarIn {
    0% {
      opacity: 0;
      transform: translateX(25rem);
    }
    100% {
      opacity: 1;
      transform: translateX(0);
    }
  }

  @keyframes sidebarOut {
    0% {
      opacity: 1;
    }
    100% {
      opacity: 0;
      transform: translateX(30rem);
    }
  }

  .sidebar .sidebar-header {
    position: relative;
    width: 100%;
    height: 4.5rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-bottom: 2px solid var(--white-90);
  }

  .sidebar-header .sidebar-title {
    position: relative;
    margin-left: 1rem;
    font-size: 22px;
    font-weight: 600;
  }

  .sidebar-header .close-button {
    position: relative;
    margin-right: 1rem;
    width: 2.3rem;
    height: 2.3rem;
    font-size: 16px;
    border-radius: 8px;
    border: none;
    background-color: transparent;
  }

  .close-button:hover {
    transition: 0.3s ease;
    cursor: pointer;
    background-color: var(--background);
  }

  .close-button:focus {
    transition: 0.3s ease;
    cursor: pointer;
    background-color: var(--background-dark);
  }

  .sidebar .sidebar-link {
    position: relative;
    padding: 16px 0 16px 1rem;
    font-size: 18px;
    border-bottom: 1px solid var(--white-90);
    color: var(--text-secondary);
  }

  .sidebar .sidebar-link:hover {
    transition: 0.3s ease;
    cursor: pointer;
    background-color: var(--background);
  }

  .sidebar .sidebar-link:focus {
    transition: 0.3s ease;
    cursor: pointer;
    background-color: var(--background-dark);
  }
}