/* General Styles */
body {
  font-family: 'Arial', sans-serif;
  background-color: #364156; 
  color: #11151C; 
  margin: 0;
  padding: 0;
}
  
.container {
  max-width: 900px;
  margin: 50px auto;
  padding: 20px;
  background-color: #FFFFFF; 
  border-radius: 12px;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
  line-height: 1.8;
}

/* Header Section */
header h1 {
  font-size: 2.5em;
  color: #D66853; /* Bright orange-red heading */
  text-align: center;
  margin-bottom: 10px;
}

header .subtitle {
  font-size: 1.2em;
  text-align: center;
  color: #7D4E57; /* Muted rose */
  margin-bottom: 30px;
}

/* Question Section */
.question h2 {
  font-size: 2em;
  color: #D66853; /* Bright orange-red */
  margin-bottom: 15px;
  border-bottom: 2px solid #D66853; /* Orange underline */
  padding-bottom: 5px;
}

.question p {
  font-size: 1.2em;
  color: #000000; /* Muted rose */
  margin-bottom: 20px;
}

.question ol {
  margin: 20px 0;
  padding-left: 20px;
}

.question ol li {
  font-size: 1.2em;
  color: #11151C; /* Black */
  margin-bottom: 10px;
}

/* Solution Section */
.solution {
  margin-top: 30px;
  background-color: #F9F9F9; /* Light gray */
  padding: 15px;
  border-radius: 8px;
  border: 1px solid #DDD;
  box-shadow: 0 5px 10px rgba(0, 0, 0, 0.05);
}

.solution summary {
  font-size: 1.5em;
  cursor: pointer;
  color: #D66853; /* Bright orange-red */
  padding-bottom: 10px;
  border-bottom: 2px solid #D66853; /* Bright orange-red underline */
  margin-bottom: 10px;
}

.solution-content {
  margin-top: 10px;
}

.solution-content iframe {
  width: 100%;
  height: 315px;
  margin-bottom: 20px;
  border: none;
}

.solution-content img {
  max-width: 100%;
  height: auto;
}

.solution-content .caption {
  font-size: 0.9em;
  color: #888; /* Light gray for captions */
  text-align: center;
  margin-top: 10px;
}

/* Responsive Design */
@media (max-width: 768px) {
  header h1 {
    font-size: 2em;
  }

  header .subtitle {
    font-size: 1em;
  }

  .question h2 {
    font-size: 1.8em;
  }

  .question p, .question ol li {
    font-size: 1.1em;
  }

  .solution summary {
    font-size: 1.3em;
  }
}