body {
    background: #0a0a0a;
    color: #fff;
    font-family: 'Segoe UI', Arial, sans-serif;
    margin: 0;
    padding: 0;
}
.container {
    max-width: 400px;
    margin: 60px auto;
    background: #181c23;
    border-radius: 16px;
    box-shadow: 0 4px 24px rgba(0,0,0,0.4);
    padding: 32px 24px 24px 24px;
    text-align: center;
}
.logo {
    width: 240px;
    max-width: 90vw;
    margin-bottom: 16px;
}
h1 {
    color: #0090d0;
    margin-bottom: 8px;
    font-weight: 900;
    letter-spacing: 1px;
}
#game-area {
    margin-top: 24px;
    position: relative;
}
#start-btn {
    background: #d32f2f;
    color: #fff;
    border: none;
    padding: 16px 32px;
    border-radius: 8px;
    font-size: 1.2em;
    cursor: pointer;
    font-weight: bold;
    transition: background 0.2s;
    box-shadow: 0 2px 8px rgba(211,47,47,0.15);
}
#start-btn:hover {
    background: #b71c1c;
}
#wait-message {
    font-size: 1.1em;
    margin: 24px 0;
    color: #0090d0;
    font-weight: bold;
}
#click-area {
    width: 100%;
    height: 120px;
    background: #232a36;
    border-radius: 8px;
    margin: 24px 0;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3em;
    cursor: pointer;
    font-weight: bold;
    color: #fff;
    border: 2px solid #0090d0;
    transition: background 0.2s, border 0.2s;
    position: relative;
    z-index: 1;
}
#click-area.active {
    background: #0090d0;
    color: #fff;
    border: 2px solid #fff;
}
#result {
    margin: 16px 0 0 0;
    font-size: 1.1em;
}
#cupom {
    margin-top: 24px;
    background: #0090d0;
    color: #fff;
    padding: 16px;
    border-radius: 8px;
    font-size: 1.2em;
    font-weight: bold;
    letter-spacing: 1px;
    box-shadow: 0 2px 8px rgba(0,144,208,0.15);
}
#ranking h2 {
    color: #0090d0;
    margin-bottom: 8px;
}
#ranking ol {
    padding-left: 20px;
    text-align: left;
}
#ranking li {
    margin-bottom: 4px;
    font-weight: 500;
}
#share-btn {
    background: #0090d0;
    color: #fff;
    border: none;
    padding: 14px 28px;
    border-radius: 8px;
    font-size: 1.1em;
    font-weight: bold;
    cursor: pointer;
    margin-top: 12px;
    transition: background 0.2s;
    box-shadow: 0 2px 8px rgba(0,144,208,0.15);
}
#share-btn:hover {
    background: #005b8e;
}
@media (max-width: 500px) {
    .container {
        max-width: 98vw;
        padding: 8vw 2vw 4vw 2vw;
    }
    .logo {
        width: 70vw;
        max-width: 95vw;
    }
    #game-canvas {
        width: 98vw !important;
        height: 130vw !important;
        max-width: 100vw;
        max-height: 90vh;
        aspect-ratio: 9/16;
        display: block;
        margin: 0 auto;
    }
    #score, #cupom {
        font-size: 1em;
    }
    #start-race-btn {
        width: 90vw;
        font-size: 1em;
        padding: 12px 0;
    }
}