body {
    background-color: #121212;
    color: #e0e0e0;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    display: flex;
    justify-content: center;
    align-items: flex-start;
    min-height: 100vh;
    margin: 0;
    padding-top: 20px;
}

.container {
    width: 90%;
    max-width: 1200px;
    text-align: center;
}

h1, h2, h3 {
    color: #ffffff;
}

#difficulty-selector {
    margin-top: 40px;
}

.btn {
    background-color: #1e88e5;
    color: #ffffff;
    border: none;
    padding: 15px 30px;
    margin: 10px;
    font-size: 18px;
    cursor: pointer;
    border-radius: 5px;
    transition: background-color 0.3s ease;
}

.btn:hover {
    background-color: #1565c0;
}

#game-area {
    margin-top: 30px;
}

/* Estilo para o container de status */
#status-container {
    display: flex;
    justify-content: space-around;
    background-color: #1e1e1e;
    padding: 15px;
    border-radius: 8px;
    margin-bottom: 20px;
    font-size: 22px;
}

#items-container {
    background-color: #1e1e1e;
    padding: 20px;
    border-radius: 8px;
    margin-bottom: 30px;
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 10px;
    min-height: 100px;
}

.item {
    background-color: #424242;
    color: #ffffff;
    padding: 12px 20px;
    border-radius: 5px;
    cursor: grab;
    transition: transform 0.2s;
    user-select: none;
}

.item.dragging {
    opacity: 0.5;
    transform: scale(1.1);
}

/* Animação de erro */
@keyframes shake {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-5px); }
    50% { transform: translateX(5px); }
    75% { transform: translateX(-5px); }
}

.item-wrong {
    animation: shake 0.4s ease-in-out;
}

#drop-zones {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
}

.drop-zone {
    background-color: #2c2c2c;
    border: 2px dashed #555;
    padding: 20px;
    min-height: 150px;
    border-radius: 8px;
    transition: background-color 0.3s, border-color 0.3s;
}

.drop-zone h3 {
    margin-top: 0;
    pointer-events: none;
}

.drop-zone.hover {
    background-color: #383838;
    border-color: #777;
}

.drop-zone.correct {
    background-color: rgba(40, 167, 69, 0.3);
    border-color: #28a745;
}

.drop-zone.wrong {
    background-color: rgba(220, 53, 69, 0.3);
    border-color: #dc3545;
}

.hidden {
    display: none;
}

.btn-secondary {
    background-color: #6c757d;
    margin-top: 30px;
}

.btn-secondary:hover {
    background-color: #5a6268;
}