/****************************************
 *            GENERAL STYLING
 ****************************************/
body {
  margin: 0;
  padding: 0;
  background-color: black;
  color: white;
  font-family: 'Courier New', Courier, monospace;
  text-align: center;
  position: relative;
  overflow: hidden; /* Prevent scrollbars during gameplay */
}

/* Title */
h1 {
  margin: 10px 0;
  font-size: 3rem;
  color: lime;
}

/****************************************
 *            HOME SCREEN
 ****************************************/
#home-screen {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 100vh;
  background: url('../images/galactic.png') no-repeat center center/cover; /* Updated path */
  color: white;
  padding: 20px; /* Added padding for better spacing */
  position: relative; /* Allows positioning of child elements like high scores */
  padding-top: 130px;
}

#name-input-area {
  margin-bottom: 20px;
}

#name-input-area label {
  font-size: 1.2rem;
  margin-right: 10px;
  font-weight: bold; /* Made the label text bold */
}

#player-name {
  padding: 5px 10px;
  font-size: 1rem;
  border-radius: 4px;
  border: 1px solid #ccc;
  outline: none;
}

#start-game {
  margin: 10px;
  padding: 2vw 5vw; /* Changed to responsive units */
  font-size: 1.5rem;
  background-color: black; /* Changed background to black */
  color: white; /* Changed text color to white */
  border: 1px solid white; /* Added a slim white border */
  border-radius: 5px;
  cursor: pointer;
  transition: background-color 0.3s;
}

#start-game:hover {
  background-color: #333; /* Slightly lighter black on hover */
}

/****************************************
 *            HIGH SCORES
 ****************************************/
#high-scores {
  position: absolute; /* Positioned relative to the home-screen */
  top: 20px; /* Top-right corner */
  right: 20px;
  background-color: rgba(0, 0, 0, 0.7); /* Semi-transparent background */
  padding: 10px;
  border: 2px solid white;
  border-radius: 8px;
  text-align: left;
  width: 200px;
}

#high-scores h2 {
  font-size: 1.5rem;
  margin: 0 0 10px 0;
  text-align: center;
}

#scores-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

#scores-list li {
  font-size: 1rem;
  margin: 5px 0;
  color: white;
}

/* Highlight user's position */
.user-score {
  font-weight: bold;
  color: lime;
}

/****************************************
 *            GAME CONTAINER
 ****************************************/
#game-container {
  position: relative;
  width: 90vw; /* Changed from fixed 600px to responsive */
  max-width: 600px;
  height: 90vw; /* Changed from fixed 600px to responsive */
  max-height: 600px;
  margin: 20px auto; /* Added margin for spacing */
  background-color: black;
  border: 2px solid white;
  overflow: hidden;
}

/* Ship */
#ship {
  position: absolute;
  width: 8vw; /* Responsive width */
  max-width: 50px;
  height: auto;
  bottom: 5%;
  left: 50%;
  transform: translateX(-50%);
}

/* Alien */
.alien {
  position: absolute;
  width: 7.8125vw; /* 40px / 512px * 100% ≈ 7.8125vw */
  max-width: 40px;
  height: 7.8125vw;
  max-height: 40px;
}

/* Boss Alien */
.bossAlien {
  width: 23.4375vw; /* 120px / 512px * 100% ≈ 23.4375vw */
  max-width: 120px;
  height: 23.4375vw;
  max-height: 120px;
  filter: hue-rotate(180deg) brightness(1.2);
}

/* Building */
.building {
  position: absolute;
  width: 7.8125vw; /* 40px / 512px * 100% ≈ 7.8125vw */
  max-width: 40px;
  height: 7.8125vw;
  max-height: 40px;
  background-color: #666; /* Default color */
  border: 2px solid #ccc;
  border-radius: 4px;
  transition: background-color 0.2s;
}

/****************************************
 *            LIFE BAR
 ****************************************/
#life-bar-container {
  width: 90vw; /* Changed from fixed 600px to responsive */
  max-width: 600px;
  height: 2vh; /* Changed from fixed 20px to responsive */
  max-height: 20px;
  background-color: gray;
  border: 2px solid white;
  margin: 10px auto;
  position: relative;
}

/* Life Bar */
#life-bar {
  width: 100%;
  height: 100%;
  background-color: lime;
  transition: width 0.2s ease;
}

/****************************************
 *            SCOREBOARD
 ****************************************/
#scoreboard {
  margin: 10px 0;
  font-size: 1.2rem;
}

/****************************************
 *            GAME OVER
 ****************************************/
#game-over {
  display: none;
  font-size: 4vw; /* Responsive font size */
  max-font-size: 40px;
  color: red;
  margin-top: 20px;
}

/****************************************
 *            BULLETS
 ****************************************/
/* Player Bullet */
.bullet {
  position: absolute;
  width: 1.171875vw; /* 6px / 512px * 100% ≈ 1.171875vw */
  max-width: 6px;
  height: 3.90625vw; /* 20px / 512px * 100% ≈ 3.90625vw */
  max-height: 20px;
  background-color: white;
}

/* Enemy Bullet */
.enemy-bullet {
  position: absolute;
  width: 1.171875vw; /* 6px / 512px * 100% ≈ 1.171875vw */
  max-width: 6px;
  height: 3.90625vw; /* 20px / 512px * 100% ≈ 3.90625vw */
  max-height: 20px;
  background-color: red;
}

/* Boss Bullet */
.boss-bullet {
  position: absolute;
  width: 1.953125vw; /* 10px / 512px * 100% ≈ 1.953125vw */
  max-width: 10px;
  height: 4.8828125vw; /* 25px / 512px * 100% ≈ 4.8828125vw */
  max-height: 25px;
  background-color: orange;
  border-radius: 3px;
}

/****************************************
 *            MOBILE CONTROLS
 ****************************************/
#mobile-controls {
  position: fixed;
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 20px;
  z-index: 1000; /* Ensure controls are above game elements */
}

.control-btn {
  width: 60px;
  height: 60px;
  background-color: rgba(255, 255, 255, 0.2);
  border: 2px solid white;
  border-radius: 50%;
  color: white;
  font-size: 2rem;
  cursor: pointer;
  transition: background-color 0.3s, transform 0.1s;
}

.control-btn:active {
  background-color: rgba(255, 255, 255, 0.5);
  transform: scale(0.95);
}

/****************************************
 *            RESPONSIVE ADJUSTMENTS
 ****************************************/
@media (max-width: 800px) {
  /* Adjust game container for medium screens */
  #game-container {
    width: 95vw;
    height: 95vw;
    max-width: 500px;
    max-height: 500px;
  }

  /* Adjust ship size */
  #ship {
    width: 7vw;
    max-width: 40px;
  }

  /* Adjust alien size */
  .alien {
    width: 6vw;
    height: 6vw;
    max-width: 35px;
    max-height: 35px;
  }

  /* Adjust boss alien size */
  .bossAlien {
    width: 20vw;
    height: 20vw;
    max-width: 100px;
    max-height: 100px;
  }

  /* Adjust game over text size */
  #game-over {
    font-size: 5vw;
    max-font-size: 35px;
  }
}

@media (max-width: 600px) {
  /* Adjust mobile controls size on smaller screens */
  .control-btn {
    width: 50px;
    height: 50px;
    font-size: 1.5rem;
  }

  /* Adjust game container padding */
  #home-screen {
    padding-top: 100px;
  }
}

@media (max-width: 400px) {
  /* Further adjust mobile controls on very small screens */
  .control-btn {
    width: 40px;
    height: 40px;
    font-size: 1.2rem;
  }

  /* Adjust game container height */
  #game-container {
    height: 80vw;
    max-height: 400px;
  }

  /* Adjust ship size */
  #ship {
    width: 10vw;
    max-width: 40px;
  }

  /* Adjust alien size */
  .alien {
    width: 5vw;
    height: 5vw;
    max-width: 30px;
    max-height: 30px;
  }

  /* Adjust boss alien size */
  .bossAlien {
    width: 18vw;
    height: 18vw;
    max-width: 90px;
    max-height: 90px;
  }

  /* Adjust game over text size */
  #game-over {
    font-size: 6vw;
    max-font-size: 30px;
  }
}