html {
  background: #F7F3EB;
  color: #333366;
  margin: 20px 20px;
  /* mobile-first: smaller side margins */
}

* {
  box-sizing: border-box;
}

body {
  font-family: 'Quicksand', sans-serif;
}

.logo {
  height: 80px;
  margin-right: 1rem;
}

.logo:hover {
  /* transform: rotate(-3deg) scale(1.05); */
        animation: bounce-up 1s ease-out;
    }
    
    @keyframes bounce-up {
      0% {
        transform: translateY(0);
      }
    
      40% {
        transform: translateY(-12px);
      }
    
      60% {
        transform: translateY(-6px);
      }
    
      100% {
        transform: translateY(0);
      }
    }
}

h1,
h3,
h4,
h5,
h6 {
  font-family: 'Libre Baskerville', serif;
}

h2 {
  font-family: 'Libre Baskerville', serif;
  font-size: 2.5rem;
  margin-bottom: 1rem;
  margin-top: 0;
}

h4 {
  text-align: center;
  font-size: 1.2rem;
}

p {
  font-size: 1rem;
  line-height: 1.6;
  text-align: justify;
}

.main-paragraph {
  margin-top: 2rem;
}

.main-heading {
  text-align: center;
  /* margin-top: 2.5rem; */
  font-size: 2.5rem;
  margin: 20px 5% 40px 5%;
}

.main-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}

.nav-links {
  list-style-type: none;
  display: flex;
  gap: 1rem;
  padding: 0;
  margin: 0;
  overflow-x: auto;
}

.nav-items {
  text-decoration: none;
  color: #333366;
  font-weight: 500;
  font-size: 1rem;
}

.nav-items:hover {
  color: #FF6F61;
}

.nav-items:active {
  color: #FF3B2E;
}

.main-article {
  background-color: #E8D1FF;
  padding: 12px 18px;
  border-radius: 10px;
}

.article-image {
  width: 80%;
  max-width: 80%;
  margin: 0 auto 30px auto;
  object-fit: contain;
}

.main-article-image {
  width: 100%;
  display: block;
  height: auto;
  border-radius: 10px;
}

.main-article-all {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
  align-items: start;
}

.sub-articles {
  margin-top: 30px;
}

.sub-articles-grid {
  display: grid;
  grid-template-columns: 1fr; /* mobile: single column */
  gap: 1.5rem;
}

.sub-article {
  background-color: #FFDFA0;
  padding: 12px 30px;
  border-radius: 10px;
  display:flex;
  flex-direction: column;
} 

.sub-article-image {
  width: 100%;
  display: block;
  height: 300px;
  object-fit: contain;
  border-radius: 10px;
}

/* Tablet breakpoint: 768px */
@media (min-width: 768px) {
  .main-article-all {
    grid-template-columns: 35% 1fr;
    gap: 2rem;
  }

  .main-heading {
    font-size: 3.25rem;
    margin: 30px 5% 50px 5%;
  }

  .nav-items {
    font-size: 1.1rem;
  }

  .logo {
    height: 100px;
  }

  .main-article {
    padding: 18px 28px;
  }

  .article-image {
    width: 100%;
      max-width: 100%;
      margin-bottom: 20px;
    
    }.article-image:hover {
        transform: rotate(-1deg) scale(1.02);
}
    
    .sub-articles-grid {
      grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
  }
} 

/* Desktop breakpoint: 1024px */
@media (min-width: 1024px) {
  html {
    margin: 20px 80px;
  }

  .main-article-all {
    grid-template-columns: 40% 1fr;
    gap: 3rem;
  }

  .main-heading {
    font-size: 5rem;
    margin: 20px 5% 60px 5%;
  }

  .nav-items {
    font-size: 1.2rem;
  }

  .logo {
    height: 150px;
    margin-right: 2rem;
  }

  .main-article {
    padding: 15px 30px;
  }

  .nav-links {
    gap: 2rem;
  }

  .article-image {
    max-width: 100%;
    margin-bottom: 20px;
  }

  .sub-articles-grid {
    grid-template-columns: repeat(4, 1fr);
  }

}