/* Estilo geral inspirado na paleta de cores de The Walking Dead */
:root {
    --dark-brown: #2c2416;
    --medium-brown: #5a4d41;
    --light-brown: #8c7a6b;
    --dark-green: #2a3a2a;
    --medium-green: #4a5a4a;
    --accent-red: #8b0000;
    --text-color: #d8d0c8;
    --background-color: #1a1a1a;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Roboto', Arial, sans-serif;
    background-color: var(--background-color);
    color: var(--text-color);
    line-height: 1.6;
}

.game-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}

header {
    text-align: center;
    margin-bottom: 20px;
    border-bottom: 2px solid var(--medium-brown);
    padding-bottom: 15px;
}

h1 {
    font-family: 'Impact', 'Arial Black', sans-serif;
    color: var(--text-color);
    text-transform: uppercase;
    letter-spacing: 2px;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.7);
}

.subtitle {
    font-style: italic;
    color: var(--light-brown);
    margin-top: 5px;
}

.game-area {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    margin-bottom: 20px;
}

canvas {
    background-color: var(--dark-brown);
    border: 3px solid var(--medium-brown);
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.5);
    max-width: 100%;
    height: auto;
}

.instructions, .controls {
    background-color: var(--dark-green);
    border: 1px solid var(--medium-green);
    padding: 15px;
    border-radius: 5px;
    flex: 1;
    min-width: 300px;
}

h3 {
    color: var(--light-brown);
    margin-bottom: 10px;
    border-bottom: 1px solid var(--medium-brown);
    padding-bottom: 5px;
}

.control-group {
    margin-bottom: 15px;
}

label {
    display: block;
    margin-bottom: 5px;
    color: var(--text-color);
}

.slider {
    width: 100%;
    height: 8px;
    background: var(--medium-brown);
    outline: none;
    border-radius: 4px;
    -webkit-appearance: none;
}

.slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--accent-red);
    cursor: pointer;
}

.slider::-moz-range-thumb {
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--accent-red);
    cursor: pointer;
}

.control-group.checkbox {
    display: flex;
    align-items: center;
}

.control-group.checkbox input {
    margin-right: 10px;
}

button {
    background-color: var(--accent-red);
    color: white;
    border: none;
    padding: 10px 15px;
    border-radius: 5px;
    cursor: pointer;
    font-weight: bold;
    transition: background-color 0.3s;
    width: 100%;
    margin-top: 10px;
}

button:hover {
    background-color: #a00000;
}

.stats {
    display: flex;
    justify-content: space-around;
    background-color: var(--dark-green);
    padding: 15px;
    border-radius: 5px;
    margin-bottom: 20px;
    flex-wrap: wrap;
}

.stat-item {
    text-align: center;
    padding: 0 15px;
}

.stat-label {
    font-weight: bold;
    color: var(--light-brown);
}

.stat-value {
    font-size: 1.2em;
    color: var(--text-color);
    margin-left: 5px;
}

footer {
    text-align: center;
    font-size: 0.8em;
    color: var(--light-brown);
    margin-top: 20px;
    padding-top: 10px;
    border-top: 1px solid var(--medium-brown);
}

/* Responsividade */
@media (max-width: 900px) {
    .game-area {
        flex-direction: column;
    }
    
    canvas {
        width: 100%;
        height: auto;
    }
}

/* Efeitos visuais para elementos do jogo */
.walker {
    filter: drop-shadow(0 0 3px rgba(139, 0, 0, 0.7));
}

.survivor {
    filter: drop-shadow(0 0 3px rgba(255, 255, 255, 0.7));
}

.sound-ripple {
    border: 2px solid rgba(255, 255, 255, 0.7);
    border-radius: 50%;
    animation: ripple 2s ease-out;
}

@keyframes ripple {
    0% {
        transform: scale(0);
        opacity: 1;
    }
    100% {
        transform: scale(1);
        opacity: 0;
    }
}