* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  background-color: #ffffff;
  color: #1f3326;
  font-family: "Poppins", sans-serif;
  line-height: 1.6;
  overflow-x: hidden;
}


.navbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: linear-gradient(90deg, #2e7d32, #0a1d0b);
  padding: 1rem 2rem;
  box-shadow: 0 3px 10px rgba(0, 0, 0, 0.1);
  position: sticky;
  top: 0;
  z-index: 10;
}

.navbar h1 {
  color: #ffffff;
  font-size: 1.3rem;
  letter-spacing: 0.5px;
}

.navbar button {
  background: transparent;
  border: 2px solid #c8e6c9;
  color: #ffffff;
  padding: 0.5rem 1rem;
  border-radius: 6px;
  margin-left: 0.5rem;
  cursor: pointer;
  font-size: 0.9rem;
  transition: all 0.3s ease;
}

.navbar button:hover {
  background-color: #c8e6c9;
  color: #2e7d32;
  border-color: #81c784;
}


.banner {
  background: url("crd img/banner.png") center/cover fixed no-repeat;
  height: 55vh;
  display: flex;
  justify-content: center;
  align-items: center;
  text-align: center;
}

.banner-text {
  background: rgba(0, 0, 0, 0.45);
  color: #ffffff;
  padding: 2rem 3rem;
  border-radius: 10px;
  max-width: 700px;
}

.banner-text h2 {
  font-size: 2rem;
  color: #b3f1b5;
  margin-bottom: 1rem;
}

.banner-text p {
  font-size: 1rem;
  color: #ffffff;
}


.home-section {
  padding: 3rem 2rem;
  text-align: center;
}

.home-section h2 {
  color: #041c05;
  font-size: 1.9rem;
  margin-bottom: 0.6rem;
}

.home-section p {
  color: #3b4b3e;
  font-size: 1rem;
  margin-bottom: 2rem;
}


.categories {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 2rem;
  padding: 0 2rem;
}

.card {
  background: #ffffff;
  border-radius: 10px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
  transition: all 0.3s ease;
  cursor: pointer;
  overflow: hidden;
  text-align: center;
}

.card:hover {
  transform: translateY(-6px);
  box-shadow: 0 4px 15px rgba(13, 16, 13, 0.25);
}

.card img {
  width: 100%;
  height: 160px;
  object-fit: cover;
}

.card h3 {
  color: #2e7d32;
  font-size: 1.1rem;
  margin-top: 0.8rem;
}

.card p {
  color: #546e56;
  font-size: 0.95rem;
  padding: 0 1rem 1.2rem;
}

#content h2{
  text-align: center;
  font-size: 2.5rem;
  text-transform: uppercase;
}

#content h3{
  text-transform: uppercase;
}
.back-btn {
  background-color: #2e7d32;
  border: none;
  color: #ffffff;
  padding: 0.5rem 1rem;
  border-radius: 6px;
  margin: 1.5rem 2rem;
  cursor: pointer;
  font-size: 0.9rem;
  transition: all 0.3s ease;
}

.about{
  max-width: 900px;
  margin: 2rem auto;
  padding: 2rem;
  background: #f9fdf9;
  border-radius: 15px;
  box-shadow: 0 0 15px rgba(0, 128, 0, 0.08);
}

.about h2{
  text-align: center;
  margin-bottom: 1rem;
}

.about p{
  text-align: justify;
  font-size: 1.8;
}


.ack h2{
  text-align: center;
  margin-bottom: 1rem;
}

.source{
  max-width: 900px;
  margin: 2rem auto;
  padding: 2rem;
  border-radius: 15px;
  box-shadow: 0 0 15px rgba(0, 128, 0, 0.08);
  text-align: center;
}

.source h2{
  color: #1b5e20;
  margin-bottom: 1.3rem;
}

.source p{
  color:#263238;
  line-height:1.7;
}

.box{
  margin: 2rem 0;
}

.link{
  display: inline-block;
  background: #1b5e20;
  color: #ffffff;
  padding: 0.8rem 1.5rem;
  border-radius: 15px;
  text-decoration: none;
  font-weight: 700;
  
}


.submitted{
  margin-top: 2rem;
  background: #e8f5e9;
  border-left: 4px solid #43a047;
  padding: 1.5rem;
  border-radius: 8px;
  font-size: 1rem;


}

.submitted p{
  margin: 0.4rem 0;
}
.back-btn:hover {
  background-color: #81c784;
  color: #1f3326;
}

.question {
  background-color: #ffffff;
  border-radius: 10px;
  margin: 1rem 2rem;
  padding: 1rem 1.2rem;
  box-shadow: 0 3px 10px rgba(0, 0, 0, 0.05);
}

.question strong {
  color: #2e7d32;
}

.show-btn {
  background: #43a047;
  border: none;
  color: #ffffff;
  padding: 0.4rem 1rem;
  border-radius: 6px;
  margin-top: 0.5rem;
  cursor: pointer;
  font-size: 0.9rem;
  transition: all 0.3s ease;
}

.show-btn:hover {
  background: #a5d6a7;
  color: #1f3326;
}

.answer {
  background: #f1f8e9;
  border-left: 4px solid #4caf50;
  padding: 1rem;
  margin-top: 1rem;
  border-radius: 6px;
  display: none;
  overflow-x: auto;
  white-space: pre-wrap;
  font-family: monospace;
  color: #1b3c26;
}

.output {
  background: #f0fff0;
  color: #1b5e20;
  padding: 1rem;
  margin-top: 0.5rem;
  border-radius: 8px;
  border: 1px solid #a5d6a7;
  font-family: "Courier New", monospace;
}


footer {
  background: linear-gradient(120deg, #4caf50, #030f03);
  text-align: center;
  color: #ffffff;
  padding: 1rem 0;
  margin-top: 3rem;
  font-size: 0.95rem;
}


@media (max-width: 768px) {
  /* Navbar */
  .navbar {
    flex-direction: column;
    align-items: flex-start;
    padding: 1rem;
  }

  .navbar h1 {
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
  }

  .navbar button {
    font-size: 0.8rem;
    padding: 0.4rem 0.8rem;
  }

  /* Banner */
  .banner {
    height: 40vh;
    background-position: center;
  }

  .banner-text {
    padding: 1rem;
    font-size: 0.9rem;
  }

  .banner-text h2 {
    font-size: 1.3rem;
  }

  .categories {
    grid-template-columns: 1fr; 
    gap: 1rem;
  }

  .card img {
    height: 140px;
  }


  .show-btn,
  .output-btn {
    width: 100%;
    text-align: center;
    margin-top: 0.6rem;
  }

  pre.answer,
  pre.output {
    font-size: 0.8rem;
    padding: 0.8rem;
    overflow-x: auto;
  }

 
  footer p {
    font-size: 0.8rem;
    padding: 0.5rem;
  }

  .question {
  display: flex;
  flex-direction: column;
}

@media (max-width: 768px) {
  .question {
    flex-direction: column;
  }
}

}