:root {
  --path-height: 20vh;
}


/* =====================
   Body & Homepage Setup
===================== */
body, html {
    margin: 0;
    padding: 0;
    width: 100%;
    height: 100%;
    font-family: 'Press Start 2P', cursive;
    color: #fff;
    overflow: hidden;
    background: black;
    display: flex;
    justify-content: center;
    align-items: center;
}

/* =====================
   Game Container & Parallax
===================== */
.game-container {
    position: relative;
    width: 100vw;
    height: 100vh;
    overflow: hidden;
    text-align: center;
}

.parallax-layer {
    position: absolute;
    left: 0;
    width: 200%;
    height: 100%;
    background-repeat: repeat-x;
    background-position: 0 bottom;
    image-rendering: pixelated;
}

/* Sky, Hills, Stone, Grass Layers */
#bg-sky {
    background-image: url('./assets/background.png');
    z-index: 0;
    bottom: var(--path-height);
    height: calc(100vh - var(--path-height));
    background-size: auto 100%;
}

#bg-hills {
    background-image: url('assets/hills1.png');
    z-index: 0;
    bottom: var(--path-height);
    height: 300px;
}

#bg-stone {
    background-image: url('assets/ice_path.png');
    z-index: 1;
    bottom: 0;
    top: calc(100% - var(--path-height));
    background-position: 0 top;
}

#bg-grass {
    background-image: url('./assets/grass.png');
    z-index: 1;
    bottom: 0;
    height: 300px;
}

.ground {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 200%;
    height: var(--path-height);
    background: #4b0519;
    z-index: 1;
}

/* =====================
   Homepage Container
===================== */
.home-container {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: 10; /* above parallax layers */
}

/* =====================
   Game Title & Avatar
===================== */
.game-title {
    font-size: 24px;
    margin-bottom: 20px;
    color: #000000;
}

.avatar img {
    width: 128px;
    image-rendering: pixelated;
    margin-bottom: 20px;
}

/* =====================
   Retro Buttons
===================== */
.home-btn {
    font-size: 16px;
    padding: 10px 20px;
    margin: 10px;
    border: 3px solid white;
    background: black;
    color: white;
    cursor: pointer;
    font-family: inherit;
    text-transform: uppercase;
}

.home-btn:hover {
    background: white;
    color: black;
}

.home-btn:disabled {
    background: #222;
    color: #555;
    border-color: #555;
    cursor: not-allowed;
}

.ui-icon {
  position: fixed;
  top: 15px;        /* left for home, right for sound */
  width: 70px;
  height: auto;
  cursor: pointer;
  z-index: 9999;
  transition: transform 0.2s ease;
}

.ui-icon:hover {
  transform: scale(1.1);
}
/* home button on the left */
#home-button {
  left: 15px;
}

/* sound button to the right of home button */
#sound-toggle {
  left: 100px;  /* 15px margin + 40px width + 10px spacing */
  top: 10px;
}