/* General Body Styles */
body {
  font-family: Arial, Helvetica, sans-serif;
  text-align: center;
  margin: 0;
  padding: 0;
  transition: background-color 0.3s, color 0.3s; /* Smooth transition */
}

/* Header Styles */
#header {
  display: flex;
  justify-content: space-between; /* Spread elements across the header */
  align-items: center;
  width: 90%; /* Adjust width as needed */
  margin: 20px auto; /* Center the header horizontally */
}

.button-container {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

#header h1 {
  margin: 0;
  flex-grow: 1; /* Allow the title to take up remaining space */
  text-align: center;
}

#timer {
  font-size: 18px;
  color: gray;
}

/* Dark Mode Styles */
body.dark-mode {
  background-color: #121212; /* Dark background */
  color: #e0e0e0; /* Light text color */
}

#header.dark-mode {
  background-color: #1e1e1e; /* Darker header */
}

#timer.dark-mode,
#errors.dark-mode {
  color: #e0e0e0; /* Light text for timer and errors */
}

.button-container button {
  border: none;
  color: white;
  background-color: coral;
  padding: 10px 20px;
  font-size: 16px;
  cursor: pointer;
  border-radius: 5px;
  margin-bottom: 5px;
}

/* Button Styles for Dark Mode */
#solve-btn.dark-mode,
#reset-btn.dark-mode,
#toggle-theme-btn.dark-mode {
  background-color: #ff5722; /* Button color for dark mode */
}

/* Button Hover Effects */
#solve-btn:hover,
#reset-btn:hover,
#toggle-theme-btn:hover {
  background-color: darkred;
}

hr {
  width: 500px;
  margin: 10px auto;
}

/* Errors Section */
#errors-container {
  margin-bottom: 10px;
}

#errors {
  color: coral;
}

/* Board Styles */
#board {
  width: 450px;
  height: 450px;
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
}

.tile {
  width: 48px;
  height: 48px;
  border: 1px solid lightgray;
  font-size: 20px;
  font-weight: bold;
  display: flex;
  justify-content: center;
  align-items: center;
}

/* Dark Mode Tile Styles */
.tile.dark-mode {
  background-color: #212121; /* Dark tile background */
  color: #e0e0e0; /* Light tile text */
}

.tile-start {
  background-color: whitesmoke;
}

.horizontal-line {
  border-bottom: 1px solid black;
}

.vertical-line {
  border-right: 1px solid black;
}

/* Digits Section */
#digits {
  width: 450px;
  height: 50px;
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
}

.number {
  width: 44px;
  height: 44px;
  border: 1px solid black;
  margin: 2px;
  font-size: 20px;
  font-weight: bold;
  display: flex;
  justify-content: center;
  align-items: center;
  cursor: pointer;
  background-color: #f0f0f0; /* Light background for numbers */
}

/* Dark Mode Number Styles */
.number.dark-mode {
  background-color: #424242; /* Dark background for numbers */
  color: #e0e0e0; /* Light text color */
}

.number-selected {
  background-color: #ff9800; /* Highlight color for selected number */
}

/* Solved Tile Styles */
.tile-solved {
  background-color: #4caf50; /* Color for solved tiles */
}