body {
    margin: 0;
    padding: 0;
    background-color: #000;
    overflow: hidden;
    font-family: 'Arial', sans-serif;
    user-select: none;
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    -webkit-touch-callout: none;
    touch-action: none;
}

#game-container {
    position: relative;
    width: 100vw;
    height: 100dvh;
}

#three-canvas {
    position: absolute;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

#ui-layer {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 10;
    pointer-events: none;
}

.hud-top {
    position: absolute;
    top: 20px;
    width: 100%; 
    display: flex;
    flex-direction: column; 
    align-items: center;    
    gap: 10px;              
}

.stats-row {
    display: flex;
    justify-content: center;
    gap: clamp(10px, 4vw, 20px);
}

#lives-display {
    display: flex;
    gap: 8px;
    align-items: center;
    justify-content: center;
}

.heart-icon {
    width: clamp(28px, 7vw, 44px); 
    height: clamp(28px, 7vw, 44px);
    object-fit: contain;
    filter: drop-shadow(0 2px 5px rgba(0, 0, 0, 0.8)); 
}

.score-box {
    background: rgba(0, 0, 0, 0.6);
    border: 2px solid #FFD700;
    border-radius: 20px;
    padding: 5px clamp(10px, 3vw, 20px); 
    color: #FFF;
    min-width: 60px; 
    width: auto; 
    font-weight: bold;
    font-size: clamp(16px, 5vw, 24px); 
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 8px;
    white-space: nowrap; 
}

.score-content {
    display: flex;
    align-items: center;
    gap: 6px;
    white-space: nowrap;
    transform-origin: center center; 
    transition: transform 0.1s linear;
    font-weight: bold;
    font-size: 22px;
}

.score-icon {
    width: 18px; 
    height: 18px;
    background: #FFD700;
    border-radius: 50%;
    border: 2px solid #DAA520;
    flex-shrink: 0;
}

.pause-btn {
    position: absolute;
    right: 20px;
    top: 20px;
    width: calc(clamp(16px, 5vw, 24px) + 18px);
    height: calc(clamp(16px, 5vw, 24px) + 18px);
    font-size: clamp(16px, 5vw, 24px);
    padding: 0;
    background: rgba(0, 0, 0, 0.6);
    border: 2px solid #FFD700;
    border-radius: 50%; 
    color: #FFD700;
    font-weight: bold;
    display: flex;
    justify-content: center;
    align-items: center;
    cursor: pointer;
    pointer-events: auto;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.5);
    z-index: 20;
    transition: transform 0.1s;
}

.loading-screen {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: url('assets/textures/bg3.png');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    z-index: 100;
    transition: opacity 0.8s ease-in-out;
}

.loading-screen.hidden {
    opacity: 0;
    pointer-events: none;
}

.loader-panel {
    display: none;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: rgba(0, 0, 0, 0.75);
    padding: 20px 20px 40px 20px;
    border-radius: 30px;
    border: 1px solid rgba(255, 215, 0, 0.3);
    backdrop-filter: blur(4px);
    text-align: center;
    width: 70%;
    max-width: 280px;
    box-sizing: border-box;
    z-index: 101;
}

.progress-wrapper-container {
    position: absolute;
    bottom: 50px;
    width: 80%;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    z-index: 101;
}

.progress-container {
    width: 100%;
    height: 20px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 10px;
    overflow: hidden;
    border: 1px solid rgba(255, 215, 0, 0.3);
}

.progress-bar {
    height: 100%;
    width: 0%;
    background: linear-gradient(90deg, #FFD700, #FFF5B7);
    box-shadow: 0 0 15px rgba(255, 215, 0, 0.5);
    transition: width 0.3s ease;
}

.loader-text,
.request-text {
    color: #FFD700;
    font-weight: bold;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.5);
    margin: 0;
}

.request-text {
    line-height: 1.5;
}

.overlay-screen {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    z-index: 50;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease-in-out;
}

.overlay-screen.visible {
    opacity: 1;
    pointer-events: auto;
}

.game-over {
    background-image: url('assets/textures/bg3.png');
    background-size: cover;
    background-position: center;
    transition: opacity 1.0s ease-in-out;
}

.pause-menu {
    background: rgba(0, 0, 0, 0.75);
    backdrop-filter: blur(5px);
    z-index: 60;
}

.menu-panel {
    background: rgba(0, 0, 0, 0.8);
    padding: 30px 40px;
    border-radius: 25px;
    border: 2px solid #FFD700;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.8);
    min-width: 220px;
}

.menu-panel h1,
.menu-panel h2 {
    color: #FFF;
    margin: 0 0 10px 0;
    text-align: center;
}

.menu-panel h1 {
    font-size: 40px;
}

.menu-panel h2 {
    font-size: 32px;
    letter-spacing: 2px;
}

.btn {
    padding: 15px 40px;
    background: #FFD700;
    border: none;
    font-size: 20px;
    font-weight: bold;
    border-radius: 30px;
    cursor: pointer;
    color: #000;
    width: 100%;
    box-sizing: border-box;
    transition: transform 0.1s, background 0.2s;
}

.overlay-btn {
    position: absolute;
    bottom: -25px;
    left: 50%;
    transform: translateX(-50%);
    white-space: nowrap;
    width: auto;
}

.standalone-btn {
    position: absolute;
    left: 50%;
    bottom: 50px;
    transform: translateX(-50%);
    width: auto;
    z-index: 105;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.8);
}

#tutorial-layer {
    position: absolute;
    top: 20%;
    left: 0;
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    z-index: 15;
}

.tut-img {
    width: 120px;
    animation: bounce 1s infinite alternate;
}

@keyframes bounce {
    0% { transform: scale(0.95); }
    100% { transform: scale(1.05); }
}

.lane-guide {
    position: absolute;
    bottom: 20%;
    width: 60px;
    height: 60px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: 10px;
    transition: 0.2s;
}

#lane-left {
    left: 20%;
}

#lane-center {
    left: 50%;
    transform: translateX(-50%);
}

#lane-right {
    right: 20%;
}

.lane-active {
    border-color: #00E676;
    background: rgba(0, 230, 118, 0.2);
    box-shadow: 0 0 15px #00E676;
}

.debug-panel {
    position: absolute;
    top: 80px;
    left: 10px;
    background: rgba(0, 0, 0, 0.5);
    color: #0f0;
    font-size: 12px;
    padding: 5px;
    border-radius: 5px;
    font-family: monospace;
    pointer-events: none;
}

.bar-container {
    width: 100px;
    height: 6px;
    background: #333;
    margin-top: 4px;
    border-radius: 3px;
    overflow: hidden;
}

.bar-fill {
    height: 100%;
    background: #0f0;
    width: 0%;
    transition: width 0.1s;
}

.fullscreen-alert {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100dvh;
    background-color: #FFD700;
    z-index: 9999;
    justify-content: center;
    align-items: center;
}

.fullscreen-alert img {
    width: 150px;
    max-width: 80%;
}

#desktop-overlay {
    background-color: #FFD700;
    z-index: 10000;
}

#desktop-overlay img {
    width: 300px;
    border-radius: 20px;
    box-shadow: 0 10px 30px rgba(255, 215, 0, 0.3);
}

@media screen and (orientation: landscape) {
    #orientation-overlay {
        display: flex;
    }
}

@media screen and (hover: hover) and (pointer: fine) {
    #desktop-overlay {
        display: flex;
    }

    #game-container,
    #orientation-overlay {
        display: none !important;
    }
}