* { margin: 0; padding: 0; box-sizing: border-box; user-select: none; }
body { 
    background: #0f172a; 
    font-family: 'Outfit', sans-serif; 
    overflow: hidden; 
    touch-action: none;
}
#game-container {
    position: relative;
    width: 100vw;
    height: 100vh;
    max-width: 600px;
    margin: 0 auto;
    background: #1e293b;
    box-shadow: 0 0 30px rgba(0,0,0,0.8);
    overflow: hidden;
}
canvas {
    display: block;
    width: 100%;
    height: 100%;
}
.screen {
    position: absolute;
    top: 0; left: 0; width: 100%; height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    background: rgba(15, 23, 42, 0.85);
    backdrop-filter: blur(10px);
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
    z-index: 10;
}
.screen.active {
    opacity: 1;
    pointer-events: all;
}
.game-icon {
    width: 140px;
    height: 140px;
    border-radius: 30px;
    box-shadow: 0 15px 30px rgba(0,0,0,0.6);
    margin-bottom: 30px;
    animation: float 3s ease-in-out infinite;
    object-fit: cover;
}
@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-15px); }
}
h1 {
    color: #fff;
    font-size: 2.8rem;
    font-weight: 900;
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: 10px;
    text-shadow: 0 4px 10px rgba(0,0,0,0.5);
    text-align: center;
}
h2 {
    color: #fff;
    font-size: 3rem;
    font-weight: 900;
    margin-bottom: 20px;
    text-shadow: 0 4px 10px rgba(0,0,0,0.5);
}
p {
    color: #94a3b8;
    font-size: 1.2rem;
    margin-bottom: 40px;
    text-align: center;
}
button {
    background: linear-gradient(135deg, #3b82f6, #8b5cf6);
    color: white;
    border: none;
    padding: 18px 50px;
    font-size: 1.3rem;
    font-weight: 700;
    border-radius: 40px;
    cursor: pointer;
    box-shadow: 0 10px 20px rgba(59, 130, 246, 0.4);
    transition: transform 0.2s, box-shadow 0.2s;
    font-family: 'Outfit', sans-serif;
    text-transform: uppercase;
    letter-spacing: 1px;
}
button:active {
    transform: scale(0.95);
    box-shadow: 0 4px 10px rgba(59, 130, 246, 0.4);
}
#game-ui {
    background: transparent;
    backdrop-filter: none;
    justify-content: flex-start;
}
.top-bar {
    width: 100%;
    padding: 30px 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.score-box {
    background: rgba(255,255,255,0.15);
    backdrop-filter: blur(8px);
    padding: 12px 25px;
    border-radius: 25px;
    color: white;
    font-weight: 700;
    font-size: 1.4rem;
    border: 1px solid rgba(255,255,255,0.2);
    box-shadow: 0 4px 15px rgba(0,0,0,0.2);
}
#pause-btn {
    padding: 12px 20px;
    font-size: 1.4rem;
    background: rgba(255,255,255,0.15);
    border: 1px solid rgba(255,255,255,0.2);
    border-radius: 20px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.2);
}


/* Ultimate Polish & Mobile Responsiveness */

/* Fix Tutorial Button Spacing */
#tutorial-ok-btn {
    margin-top: 3rem;
    margin-bottom: 1rem;
    width: 80%;
    max-width: 300px;
}

/* High-DPI Canvas Rendering (makes graphics super crisp) */
canvas {
    image-rendering: -moz-crisp-edges;
    image-rendering: -webkit-optimize-contrast;
    image-rendering: crisp-edges;
    image-rendering: pixelated;
}

/* Mobile Media Queries */
@media (max-width: 600px) {
    h1 { font-size: 2.2rem; }
    p { font-size: 1rem; }
    .thumbnail { width: 140px; height: 140px; }
    button { padding: 14px 30px; font-size: 1.1rem; }
    .stat-value { font-size: 1.2rem; }
    .stat-card { padding: 8px 15px; }
    .joystick-outer { width: 110px; height: 110px; }
    .joystick-inner { width: 40px; height: 40px; }
    .action-btn { width: 75px; height: 75px; font-size: 0.8rem; }
    #level-up-toast { font-size: 2.5rem; }
    .instruction-icon { width: 40px; height: 40px; font-size: 1.5rem; }
    .instruction-text { font-size: 1rem; }
}

@media (max-height: 700px) {
    .thumbnail { display: none; } /* Hide thumbnail on very short screens to save space */
    h1 { margin-bottom: 0.5rem; }
    p { margin-bottom: 1rem; }
    #tutorial-ok-btn { margin-top: 1.5rem; }
}