*, *::before, *::after {
    box-sizing: border-box;
}

* {
    margin: 0;
}

@media (prefers-reduced-motion: no-preference) {
    html {
        interpolate-size: allow-keywords;
    }
}

img, picture, video, canvas, svg {
    display: block;
    max-width: 100%;
}

input, button, textarea, select {
    font: inherit;
}

p, h1, h2, h3, h4, h5, h6 {
    overflow-wrap: break-word;
}

p {
    text-wrap: pretty;
}

h1, h2, h3, h4, h5, h6 {
    text-wrap: balance;
}

#root, #__next {
    isolation: isolate;
}

:root {
    --red: #f52639ff;
    --yellow: #f9e25bff;
    --black: #131214;
    --pink: #e25bf9ff;
}

body {
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
    background-color: var(--yellow);
    color: var(--black);
}

header, footer {
    background-color: var(--black);
    color: #ffffff;
    line-height: 1.6;
    background-image: url("hashtag.png");
    background-repeat: repeat;
    padding: 2rem;
    display: grid;
    place-content: center;
}

footer {
    a {
        color: var(--yellow);
        font-family: monospace;
    }

    a:hover {
        text-transform: uppercase;
    }

    a:visited {
        color: var(--pink);
    }
}

main {
    display: grid;
    gap: 1rem;
    padding: 2rem;
    margin: 0 auto;
    width: 100%;
    max-width: 800px;
}

header {
  margin: 0;
  padding: 0;
  background-color: #333;
  text-align: center;
}

header img {
  display: block;
  margin: 0 auto;
}

nav {
  margin: 0;
  margin-top: 2rem;
  padding: 10px 0;
}

nav ul {
  list-style: none;
  display: flex;
  justify-content: center;
  gap: 20px;
  margin: 0;
  padding: 0;
}

nav a {
  display: inline-block;
  background-color: var(--yellow);
  color: #000;              
  font-weight: bold;
  text-decoration: none;
  padding: 8px 16px;
  border-radius: 6px;
  transition: all 0.3s ease;
  border: 2px solid transparent;
}

nav a:hover {
  background-color: #000;
  color: var(--yellow);
  border: 2px solid var(--yellow);
}

nav a.active {
  background-color: #000;
  color: var(--yellow);
  border: 2px solid var(--yellow);
}

.burger {
  display: none;
  font-size: 28px;
  color: white;
  cursor: pointer;
  background: none;
  border: none;
}

.menu-toggle {
  display: none;
}

@media (max-width: 700px) {
  nav {
    display: none;
  }

  .burger {
    display: block;
    margin: 10px auto;
  }

  .menu-toggle:checked + .burger + nav {
    display: block;
  }

  nav ul {
    flex-direction: column;
    align-items: center;
    gap: 15px;
  }

  nav a {
    width: 80%;          
    text-align: center;
  }
}