body {
    font-family: Arial, sans-serif;
    background-color: #ffffff;
    margin: 0;
    padding: 0;
    text-align: center;
    color: #000;
}

/* HEADER */
header {
    background-color: #fff;
    color: #000;
    padding: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 15px;
    border-bottom: 2px solid #ff6600;
}
header h1 {
    margin: 0;
    font-size: 18px;
    font-weight: bold;
}
header small {
    font-size: 14px;
    color: #ff6600;
}
.mascote-topo {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    object-fit: cover;
}

/* CONTAINER */
.container {
    padding: 20px;
    max-width: 900px;
    margin: auto;
}

/* SECTIONS */
.section {
    margin-top: 20px;
    padding: 20px;
    border-radius: 8px;
    background: #fff;
    box-shadow: 0 1px 4px rgba(0,0,0,0.1);
}

/* BUTTONS */
button {
    background-color: #ff6600;
    color: white;
    border: none;
    padding: 14px 20px;
    font-size: 16px;
    margin: 8px;
    cursor: pointer;
    border-radius: 8px;
    transition: background 0.3s ease;
    text-transform: none;
}
button:hover {
    background-color: #e05500;
}
.btn-group {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
}
.btn-back {
    background-color: transparent;
    color: #ff6600;
    border: 2px solid #ff6600;
}
.btn-back:hover {
    background-color: #ffe5d0;
}

/* INPUTS */
input {
    padding: 10px;
    font-size: 16px;
    margin: 10px auto;
    border-radius: 8px;
    border: 1px solid #ccc;
    width: 100%;
    max-width: 250px;
}

/* MATERIAL LIST */
.materials-list {
    text-align: left;
    max-height: 300px;
    overflow-y: auto;
}
.materials-list div {
    padding: 5px;
    border-bottom: 1px solid #eee;
    font-size: 14px;
}

/* RESULTADO */
#resultado h2 {
    margin-bottom: 16px;
}
#result-content {
    text-align: left;
    background: #f8f8f8;
    padding: 12px;
    border-radius: 8px;
    margin-bottom: 16px;
    font-size: 14px;
    line-height: 1.4;
}

/* MOBILE */
@media (max-width: 600px) {
    header {
        flex-direction: column;
        text-align: center;
    }
    .btn-group {
        flex-direction: column;
        width: 100%;
    }
    button {
        width: 100%;
        max-width: 300px;
    }
}