* {
       margin: 0;
       padding: 0;
       box-sizing: border-box;
       font-family: 'Courier New', monospace;
   }

   body {
       background: linear-gradient(135deg, #87CEEB, #98FB98);
       overflow: hidden;
       display: flex;
       justify-content: center;
       align-items: center;
       height: 100vh;
   }

   #gameContainer {
       width: 780px;
       height: 750px;
       transform-origin: top left;
       /* Important for scaling */
       position: relative;
   }

   /* Start Screen */
   #startScreen {
       position: absolute;
       top: 0;
       left: 0;
       width: 100%;
       height: 100%;
       background: linear-gradient(45deg, #4A90E2, #7ED321);
       display: flex;
       flex-direction: column;
       justify-content: center;
       align-items: center;
       z-index: 1000;
   }

   #title {
       font-size: 48px;
       color: #FFF;
       text-shadow: 4px 4px 8px rgba(0, 0, 0, 0.5);
       margin-bottom: 40px;
       animation: bounce 2s infinite;
   }

   @keyframes bounce {

       0%,
       20%,
       50%,
       80%,
       100% {
           transform: translateY(0);
       }

       40% {
           transform: translateY(-10px);
       }

       60% {
           transform: translateY(-5px);
       }
   }

   .menu-button {
       background: #8B4513;
       color: white;
       border: 3px solid #654321;
       padding: 15px 30px;
       font-size: 18px;
       margin: 10px;
       cursor: pointer;
       transition: all 0.3s;
       font-family: 'Courier New', monospace;
   }

   .menu-button:hover {
       background: #A0522D;
       transform: scale(1.05);
   }

   /* Game UI */
   #gameUI {
       position: absolute;
       top: 0;
       left: 0;
       width: 100%;
       height: 100%;
       pointer-events: none;
   }

   #gameCanvas {
       width: 100%;
       height: 100%;
       display: block;
   }

   /* Home Button */
   #homeButton {
       position: absolute;
       top: 10px;
       right: 10px;
       background: #DC143C;
       color: white;
       border: 2px solid #B22222;
       padding: 10px 15px;
       cursor: pointer;
       font-size: 14px;
       pointer-events: all;
       transition: all 0.3s;
       z-index: 100;
   }

   #homeButton:hover {
       background: #FF6347;
       transform: scale(1.1);
   }

   /* HUD Elements */
   #hud {
       position: absolute;
       bottom: 0;
       left: 0;
       right: 0;
       height: 80px;
       background: rgba(0, 0, 0, 0.7);
       pointer-events: all;
       display: flex;
       justify-content: space-between;
       align-items: center;
       padding: 10px;
   }

   #inventory {
       display: flex;
       gap: 5px;
   }

   .inventory-slot {
       width: 50px;
       height: 50px;
       background: #8B4513;
       border: 2px solid #654321;
       display: flex;
       align-items: center;
       justify-content: center;
       color: white;
       font-size: 12px;
       cursor: pointer;
       transition: all 0.3s;
       position: relative;
   }

   .inventory-slot:hover,
   .inventory-slot.selected {
       border-color: #FFD700;
       background: #A0522D;
   }

   .block-count {
       position: absolute;
       bottom: 2px;
       right: 2px;
       font-size: 10px;
       color: #FFD700;
   }

   #controls {
       color: white;
       font-size: 12px;
       text-align: right;
   }

   #crosshair {
       position: absolute;
       top: 50%;
       left: 50%;
       width: 20px;
       height: 20px;
       transform: translate(-50%, -50%);
       pointer-events: none;
       z-index: 50;
   }

   #crosshair::before,
   #crosshair::after {
       content: '';
       position: absolute;
       background: white;
       box-shadow: 0 0 2px black;
   }

   #crosshair::before {
       width: 2px;
       height: 20px;
       left: 9px;
       top: 0;
   }

   #crosshair::after {
       width: 20px;
       height: 2px;
       left: 0;
       top: 9px;
   }

   /* Loading Screen */
   #loadingScreen {
       position: absolute;
       top: 0;
       left: 0;
       width: 100%;
       height: 100%;
       background: #2C3E50;
       display: none;
       justify-content: center;
       align-items: center;
       z-index: 999;
   }

   .loading-text {
       color: white;
       font-size: 24px;
       animation: pulse 1.5s infinite;
   }

   @keyframes pulse {

       0%,
       100% {
           opacity: 0.5;
       }

       50% {
           opacity: 1;
       }
   }

   .hidden {
       display: none !important;
   }

   /* Overlay background */
.popup-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.6);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2000;
}

/* Popup box */
.popup-box {
    background: #222;
    color: #fff;
    padding: 20px 30px;
    border-radius: 12px;
    max-width: 500px;
    width: 90%;
    text-align: center;
    box-shadow: 0 0 20px rgba(0,0,0,0.5);
    font-family: Arial, sans-serif;
    animation: fadeIn 0.3s ease;
}

.popup-box h2 {
    margin-bottom: 15px;
    color: #FFD700;
}

.popup-box p {
    margin: 8px 0;
    line-height: 1.5;
}

/* Close button */
.close-btn {
    margin-top: 15px;
    padding: 8px 16px;
    background: #ff4444;
    color: white;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-size: 14px;
    transition: 0.2s;
}

.close-btn:hover {
    background: #cc0000;
}

.hidden {
    display: none;
}

/* Animation */
@keyframes fadeIn {
    from { transform: scale(0.9); opacity: 0; }
    to { transform: scale(1); opacity: 1; }
}