body {
    background-color: #2e004e; /* Roxo Escuro */
    color: white;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    margin: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
}

header h1 {
    margin-top: 40px;
    color: #f1c40f; /* Amarelo para destaque no título */
}

.container {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 20px;
    padding: 20px;
}

.card {
    background-color: #4b0082; /* Roxo Índigo */
    border: 2px solid #6a0dad;
    border-radius: 15px;
    padding: 30px;
    width: 300px;
    text-align: center;
    box-shadow: 0 10px 20px rgba(0,0,0,0.3);
    transition: transform 0.3s;
}

.card:hover {
    transform: translateY(-10px);
}

.timer {
    font-size: 1.2rem;
    margin: 20px 0;
    font-weight: bold;
    color: #e0e0e0;
    background: rgba(0, 0, 0, 0.2);
    padding: 10px;
    border-radius: 8px;
}

.btn-detalhes {
    background-color: #f1c40f; /* Amarelo */
    color: #2e004e;
    border: none;
    padding: 12px 25px;
    border-radius: 25px;
    font-weight: bold;
    cursor: pointer;
    transition: background 0.3s;
}

.btn-detalhes:hover {
    background-color: #d4ac0d;
}