body {
    font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
    background-color: rgb(208, 208, 236);
    margin: auto;
    padding: 20px;
    max-width: 600px;
}

h1 {
    text-align: center;
    color: #333;
}

h3 {
    color: #555;
}
label {
    display: block;
    margin-top: 10px;
    font-weight: bold;
}
input,
select {
    width: 100%;
    padding: 8px;
    margin-top: 5px;
    box-sizing: border-box;
}
button {
    margin-top: 15px;
    padding: 10px 15px;
    background-color: #4caf50;
    color: white;
    border: none;
    cursor: pointer;
    width: 100%;
    font-size: 16px;
}
button:hover {
    background-color: #45a049;
}
#resultado {
    margin-top: 20px;
    padding: 15px;
    background-color: #f9f9f9;
    border: 1px solid #ddd;
}

#resultado p {
    margin: 5px 0;
}

#recomendaciones {
    margin-top: 10px;
    padding: 10px;
    background-color: #e7f3fe;
    border-left: 6px solid #2196f3;
}
#combustible {
    background-color: #f0f0f0;
    padding: 10px;
    border-radius: 5px;
}
ul {
    list-style: none; /* remove default bullets */
    padding: 0;
    margin: 8px 0;
}

ul li {
    position: relative;
    padding: 10px 12px 10px 44px;
    margin: 8px 0;
    background: #ffffff;
    border-radius: 6px;
    border: 1px solid #e6e6e6;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.03);
    color: #333;
    transition: transform 120ms ease, box-shadow 120ms ease;
}

ul li::before {
    content: "";
    position: absolute;
    left: 16px;
    top: 50%;
    transform: translateY(-50%);
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: linear-gradient(135deg, #8b1c1c 0%, #ff6b6b 100%);
    box-shadow: 0 1px 0 rgba(0, 0, 0, 0.06) inset;
}

ul li:hover,
ul li:focus-within {
    transform: translateY(-3px);
    box-shadow: 0 6px 18px rgba(0, 0, 0, 0.08);
}

ul li small {
    color: #666;
    display: block;
    margin-top: 6px;
}

#recomendaciones ul {
    padding: 0;
}

#recomendaciones li {
    background: transparent;
    border: none;
    box-shadow: none;
    padding-left: 30px;
}

#recomendaciones li::before {
    background: #2196f3;
    width: 8px;
    height: 8px;
    left: 12px;
}

#image-row {
    display: flex;
    gap: 12px;
    justify-content: space-between;
    margin: 16px 0 8px 0;
}
.fuel-img {
    width: 32%;
    max-width: 220px;
    height: auto;
    aspect-ratio: 220 / 140;
    object-fit: cover;
    background: white;
    border-radius: 10px;
    border: 1px solid #ddd;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.06);
}

.fuel-img.blank {
    background: white;

    width: 32%;
    max-width: 220px;
    aspect-ratio: 220 / 140;
    border-radius: 10px;
    border: 1px solid #ddd;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.06);
}

@media (max-width: 520px) {
    #image-row {
        flex-direction: column;
        gap: 10px;
    }
    .fuel-img {
        width: 100%;
        max-width: none;
    }
}