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

body {
    font-family: "Inter", sans-serif;
    font-optical-sizing: auto;
    font-weight: 400;
    font-style: normal;
    background: linear-gradient(135deg, #1e1e2f, #2c2c3e);
    color: #e2e8f0;
    min-height: 100vh;
    padding: 80px 20px;
    text-align: center;
}

h1 {
    margin-bottom: 30px;
}

.container {
    max-width: 600px;
    margin: auto;
}

input {
    width: 70%;
    padding: 10px;
    border-radius: 8px;
    border: none;
    margin-right: 10px;
}

button {
    padding: 10px 15px;
    border-radius: 8px;
    border: none;
    background-color: #4c4cf8;
    color: white;
    cursor: pointer;
    transition: 0.3s;
}

button:hover {
    transform: scale(1.05);
    box-shadow: 0 0 10px rgba(76, 76, 248, 0.6);
}

ul {
    list-style: none;
    margin-top: 20px;
}

li {
    background-color: #2a2a3d;
    padding: 10px;
    border-radius: 8px;
    margin-bottom: 10px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

li button {
    background-color: #ff4d4d;
    padding: 5px 10px;
}

.voltar {
    position: absolute;
    top: 20px;
    left: 20px;
    text-decoration: none;
    color: white;
    padding: 10px 18px;
    border-radius: 8px;
    font-weight: bold;
    background: linear-gradient(270deg, #4c4cf8, #6366f1, #4c4cf8);
    background-size: 600% 600%;
    animation: gradienteAnimado 6s ease infinite;
}

@keyframes gradienteAnimado {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}