body {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    margin: 0;
    background-color: #222;
    color: #eee;
    font-family: Arial, sans-serif;
    padding: 20px;
    box-sizing: border-box;
    overflow-x: hidden;
}

canvas {
    border: 2px solid #fff;
    background-color: #333;
    max-width: 95%;
    height: auto;
    display: block;
    margin: 0 auto;
    box-shadow: 0 0 10px rgba(0,255,0,0.3);
    image-rendering: -webkit-optimize-contrast;
    image-rendering: crisp-edges;
}

h1 {
    color: #4CAF50;
    text-align: center;
    font-size: clamp(24px, 5vw, 40px);
    margin: 15px 0;
    text-shadow: 0 0 5px rgba(76, 175, 80, 0.5);
    white-space: normal;
    max-width: 90%;
}

p {
    margin: 10px 0 20px 0;
    text-align: center;
    font-size: clamp(14px, 3vw, 18px);
    max-width: 90%;
    white-space: normal;
    line-height: 1.4;
}

button {
    background-color: #007bff;
    color: white;
    padding: 10px 20px;
    border: none;
    border-radius: 5px;
    font-size: clamp(14px, 3vw, 18px);
    cursor: pointer;
    margin: 10px 0;
    transition: all 0.3s ease;
    white-space: normal;
    max-width: 90%;
    min-width: 120px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.3);
}

button:hover {
    background-color: #0056b3;
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0,0,0,0.4);
}

button:active {
    transform: translateY(1px);
    box-shadow: 0 1px 2px rgba(0,0,0,0.4);
}

.top-bar {
    position: absolute;
    top: 24px; /* Más cerca del borde superior */
    right: 24px; /* Separado del borde derecho */
    left: auto;
    width: 260px; /* Ancho fijo para agrupar los elementos */
    display: flex;
    flex-direction: column;
    align-items: stretch; /* Alinea todos los hijos al ancho del contenedor */
    z-index: 1000;
    gap: 6px;
}

.language-selector {
    position: static;
    display: flex;
    gap: 5px;
    margin-bottom: 0;
    justify-content: flex-end;
}

.lang-btn {
    background-color: #555;
    color: white;
    min-width: 45px;
    min-height: 35px;
    font-size: clamp(14px, 2vw, 16px);
    border: 2px solid transparent;
    border-radius: 5px;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 0;
    margin: 0;
}

.lang-btn:hover {
    background-color: #666;
    border-color: #999;
}

.lang-btn.active {
    background-color: #4CAF50;
    border-color: #fff;
    font-weight: bold;
    box-shadow: 0 0 8px rgba(255,255,255,0.6);
}

.how-to-play-bar {
    width: 100%;
    display: flex;
    justify-content: flex-end;
}

.how-to-play-btn {
    position: static;
    margin: 0;
    min-width: 140px;
    max-width: 220px;
    width: 100%;
    padding: 8px 18px;
    font-size: clamp(14px, 2vw, 16px);
    white-space: normal;
    overflow: visible;
    text-overflow: initial;
    border-radius: 5px;
    background-color: #ff9800;
    box-shadow: 0 2px 5px rgba(0,0,0,0.3);
}

.popup-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.85);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 2000;
    visibility: hidden;
    opacity: 0;
    transition: all 0.3s ease;
    padding: 20px;
    box-sizing: border-box;
}

.popup-overlay.active {
    visibility: visible;
    opacity: 1;
}

.popup-content {
    background-color: #2a2a2a;
    border: 3px solid #4CAF50;
    border-radius: 10px;
    padding: 25px;
    width: 90%;
    max-width: 600px;
    max-height: 80vh;
    overflow-y: auto;
    color: #fff;
    box-shadow: 0 0 20px rgba(76, 175, 80, 0.6);
    position: relative;
}

.popup-content h2 {
    color: #4CAF50;
    font-size: clamp(20px, 4vw, 28px);
    text-align: center;
    margin: 0 0 20px 0;
    text-shadow: 0 0 5px rgba(76, 175, 80, 0.5);
}

.popup-content h3 {
    color: #ff9800;
    font-size: clamp(18px, 3vw, 22px);
    margin: 20px 0 10px 0;
}

.popup-content p {
    margin: 10px 0;
    line-height: 1.5;
    font-size: clamp(14px, 2.5vw, 16px);
    text-align: left;
}

.popup-content ul {
    padding-left: 20px;
    margin: 10px 0;
    list-style-type: disc;
}

.popup-content li {
    margin-bottom: 8px;
    line-height: 1.5;
    font-size: clamp(14px, 2.5vw, 16px);
}

.popup-content li strong {
    color: #ff9800;
}

.close-popup-btn {
    background-color: #dc3545;
    color: white;
    padding: 10px 25px;
    font-size: clamp(16px, 3vw, 18px);
    margin-top: 20px;
    display: block;
    width: auto;
    min-width: 120px;
    max-width: 200px;
    margin: 25px auto 0 auto;
}

.close-popup-btn:hover {
    background-color: #c82333;
}

.privacy-link-bar {
    width: 100%;
    display: flex;
    justify-content: flex-end;
    margin-top: 2px;
}

#privacyLink {
    font-size: 15px;
    color: #4CAF50;
    text-decoration: underline;
    padding: 2px 0;
    transition: color 0.2s;
}

#privacyLink:hover {
    color: #388e3c;
}

@media (max-width: 600px) {
    body {
        padding: 15px 10px;
    }
    
    .top-bar {
        top: 10px;
        right: 6px;
        left: auto;
        width: 98vw;
        min-width: 180px;
        max-width: 98vw;
        align-items: stretch;
        gap: 4px;
    }
    .how-to-play-btn {
        min-width: 100px;
        max-width: 98vw;
        width: 100%;
        font-size: 13px;
        padding: 6px 10px;
    }
    .language-selector {
        justify-content: flex-end;
    }
    
    .lang-btn {
        min-width: 40px;
        min-height: 30px;
    }
    
    .popup-content {
        padding: 15px;
    }
    
    h1 {
        margin: 60px 0 15px 0;
    }
}

@media (min-width: 1200px) {
    canvas {
        max-width: 80%;
        box-shadow: 0 0 15px rgba(0,255,0,0.5);
    }
    
    .popup-content {
        max-width: 800px;
    }
}