/* ============== */
/* CSS Variables */
/* ============== */
:root {
  --primary-color: #007BFF;
  --primary-dark: #0056b3;
  --primary-darker: #004085;
  --text-color: #333;
  --light-bg: #f9f9f9;
  --border-color: #ddd;
  --white: #fff;
  --dark-bg: #333;
  --border-radius: 5px;
  --transition: 0.3s ease;
}

/* ============== */
/* Base Styles */
/* ============== */
body {
  font-family: Arial, sans-serif;
  margin: 0;
  padding: 0;
  line-height: 1.6;
  overflow-x: hidden;
}

.container {
  box-sizing: border-box;
  width: 90%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 15px;
}

/* ============== */
/* Header Styles */
/* ============== */
header {
  background-color: var(--primary-color);
  color: var(--white);
  padding: 20px 0;
  text-align: center;
}

.header-content {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  gap: 2rem;
  flex-wrap: wrap;
}

.logo {
  max-width: 100px;
  height: auto;
}

h1 {
  margin: 0;
  font-size: 2rem;
  flex: 1;
  text-align: center;
}

.section-title {
  text-align: center;
  margin: 20px 0;
  font-size: 1.5rem;
}

/* ============== */
/* Button Styles */
/* ============== */
.btn {
  background-color: var(--primary-dark);
  color: var(--white);
  border: none;
  padding: 10px 15px;
  cursor: pointer;
  border-radius: var(--border-radius);
  font-size: 1rem;
  text-decoration: none;
  display: inline-block;
  transition: background-color var(--transition);
}

.btn:hover {
  background-color: var(--primary-darker);
}

#back-button {
  white-space: nowrap;
  max-width: 150px;
  text-overflow: ellipsis;
  overflow: hidden;
}

.menu-button {
  padding: 15px 32px;
  font-size: 24px;
  margin: 4px 2px;
}

.show-answer-btn {
  margin-top: 10px;
}

/* ============== */
/* Puzzle Styles */
/* ============== */
.puzzle-blocks {
  display: grid;
  grid-template-columns: repeat(1, 1fr);
  gap: 20px;
}

.puzzle-block {
  border: 1px solid var(--border-color);
  border-radius: 8px;
  background-color: var(--light-bg);
  word-wrap: break-word;
  overflow: hidden;
}

.block-header {
  font-size: 1.2em;
  font-weight: bold;
  margin-bottom: 10px;
  text-align: center;
  padding: 20px;
  cursor: pointer;
}

.puzzle-item {
  margin-bottom: 15px;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.puzzle-question {
  word-wrap: break-word;
  text-align: left;
}

/* ============== */
/* Common Elements */
/* ============== */
img, .rebus-image, .rebus-answer {
  max-width: 100%;
  height: auto;
  margin: 10px auto;
}

.formatted-text {
  font-family: Arial, sans-serif;
  line-height: 1.6;
}

.item, .answer-item {
  margin-bottom: 10px;
  text-align: left;
  padding: 0 20px;
}

.number, .answer-number {
  font-weight: bold;
  color: var(--primary-color);
  margin-right: 10px;
}

.text, .answer-text {
  font-size: 1rem;
  color: var(--text-color);
}

/* ============== */
/* Visibility & Effects */
/* ============== */
.hidden {
  display: none !important;
}

.show {
  display: block;
}

.fade-in {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}

.fade-in.show {
  opacity: 1;
  transform: translateY(0);
}

.answer {
  opacity: 0;
  transition: opacity 0.5s ease-in-out;
}

/* ============== */
/* Footer */
/* ============== */
footer {
  background-color: var(--dark-bg);
  color: var(--white);
  width: 100%;
  text-align: center;
  padding: 10px 0;
  position: fixed;
  bottom: 0;
}

/* ============== */
/* Media Queries */
/* ============== */
@media (min-width: 1200px) {
  .container {
    padding: 0 30px;
  }
  .menu-button {
    padding: 25px 40px;
  }
  .block-header {
    padding: 20px;
  }
}

@media (max-width: 768px) {
  .container {
    width: 100%;
  }
  .menu-container, .puzzle-blocks {
    grid-template-columns: 1fr;
  }
  h1 {
    font-size: 1.5rem;
    text-align: left;
  }
  .section-title {
    font-size: 1.2rem;
  }
  .menu-button {
    padding: 20px;
    font-size: 1rem;
  }
  .show-answer-btn {
    padding: 8px 12px;
    font-size: 0.9rem;
  }
  .header-content {
    flex-direction: column;
    align-items: flex-start;
    gap: 10px;
  }
  #back-button {
    align-self: flex-start;
  }
  .logo {
    max-width: 80px;
  }
  img, .rebus-image, .rebus-answer {
    margin: 5px auto;
  }
  .text, .answer-text {
    padding: 0 10px;
  }
}

@media (max-width: 480px) {
  h1 {
    font-size: 1.2rem;
  }
  .section-title {
    font-size: 1rem;
  }
  .block-header {
    font-size: 1rem;
  }
  .menu-button {
    padding: 8px 15px;
    font-size: 0.8rem;
  }
  .show-answer-btn {
    padding: 6px 10px;
    font-size: 0.8rem;
  }
  .logo {
    max-width: 60px;
  }
  img, .rebus-image, .rebus-answer {
    margin: 3px auto;
  }
}