/* Base styling */
body {
  background-image: url('background1.jpg');
  background-size: cover;
  background-attachment: fixed;
  background-repeat: no-repeat;
  background-position: center;
  color: #f3f3f3;
  font-family: 'Caveat', 'Indie Flower', cursive, sans-serif;
  font-size: 1.25rem;
  line-height: 1.75;
  padding: 2rem;
  margin: auto;
  max-width: 61.8rem;
  backdrop-filter: brightness(0.9) contrast(1.1);
}

/* Title Section */
.title {
  background-color: rgba(0, 0, 0, 0.7);
  padding: 2rem;
  border-radius: 10px;
  text-align: center;
  font-size: 2.5rem;
  font-weight: bold;
  color: #aff5f5;
  box-shadow: 0 0 20px rgba(0,255,255,0.2);
  margin-bottom: 3rem;
}

/* Headers */
h1 {
  color: #ffdd57;
  border-left: 6px solid #ffaa00;
  padding-left: 1rem;
  margin-top: 3rem;
  font-size: 2rem;
}

h2 {
  font-size: 2rem;
  color: #fff;
  margin-bottom: 1rem;
}

a {
  color: #66ccff;
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
  color: #00ffff;
}

/* Math content */
.math-box-container {
  text-align: center;
  margin-top: 1.5rem;
  margin-bottom: 1.5rem;
}

.math-box {
  display: inline-block;
  background-color: rgba(0, 0, 0, 0.3);
  border: 1px solid #ccc;
  padding: 1rem 2rem;
  border-radius: 8px;
  font-size: 1.25rem;
  color: #00ffcc;
  font-family: 'Georgia', serif;
}

/* Equations */
mjx-container {
  font-size: 1em !important;
  color: #00ffcc;
}

/* Paragraphs and explanation */
p {
  margin: 1rem 0;
  font-size: 1.618rem;
}

.explanation-line {
  color: white;
  font-style: italic;
  margin-top: 1.2rem;
  text-align: center;
}

/* Highlighted note or block (like a theorem box) */
.tcolorbox {
  border: 2px solid #003366;
  background-color: rgba(255, 255, 255, 0.05);
  border-radius: 10px;
  margin: 2rem 0;
  box-shadow: 0 4px 12px rgba(0, 51, 102, 0.2);
}

.tcolorbox-title {
  background-color: #cce0ff;
  color: #003366;
  font-weight: bold;
  padding: 0.75rem 1.5rem;
  font-size: 1.6rem;
  font-family: 'Caveat', cursive;
  border-top-left-radius: 10px;
  border-top-right-radius: 10px;
}

.tcolorbox-body {
  padding: 1.5rem;
  color: #fefefe;
  font-family: 'Arial', sans-serif;
  background-color: rgba(0, 0, 0, 0.2);
  border-radius: 0 0 10px 10px;
}

/* Footer */
.site-footer {
  background-color: #070707;
  color: #fff;
  text-align: center;
  padding: 2rem 1rem;
  margin-top: 4rem;
  font-family: 'Georgia', serif;
  border-top: 1px solid #fff;
}

.site-footer a {
  color: #fdd835;
  text-decoration: none;
}

.site-footer a:hover {
  text-decoration: underline;
}

.stacked-boxes {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  align-items: center;
}

.wide-box {
  width: 95%;
  font-size: 1.2rem;
  padding: 1.25rem 2rem;
  background-color: rgba(0, 0, 0, 0.4);
}

.final-step {
  border: 2px solid #fff;
  font-size: 1.35rem;
  font-weight: bold;
  padding: 1rem 2rem;
  background-color: rgba(0, 0, 0, 0.2);
}