* {
    box-sizing: border-box;
}

html,
body {
    width: 100%;
    overflow-x: hidden;
    margin: 0;
    padding: 0;
}
img {
    max-width: 100%;
    height: auto;
}
.descripcion,
.configuracion {
    flex: 1;
}
@media (max-width: 768px) {

    .producto-sello {
        flex-direction: column;
        padding: 15px;
    }

    .descripcion,
    .configuracion {
        width: 100%;
    }

    .header-content {
        flex-direction: column;
        text-align: center;
    }

    .header-content img {
        max-width: 120px;
    }

    select,
    input,
    textarea,
    button {
        width: 100%;
    }

    .modelo-preview img {
        max-width: 100%;
    }
}
#modelo,
#cantidad,
textarea {
    width: 100%;
}
@media (max-width: 768px) {
    .header-content h1 {
        font-size: 1.8rem;
    }
}


body{
    font-family:Arial,sans-serif;
    margin:0;
    background:#f5f5f5;
}
header{
    background:#0d6efd;
    color:white;
    padding:20px;
}

.header-content{
    display:flex;
    justify-content:center;
    align-items:center;
    gap:20px;
}

.header-content img{
    width:80px;
    height:80px;
    object-fit:contain;
}
.descripcion img {
    width: 250px;
    height: auto;
    display: block;
    margin: 0 auto;
}
.header-content h1{
    margin:0;
    font-size:3rem;
}
h2{
    text-align:center
}
.container{
    max-width:1000px;
    margin:auto;
    padding:30px;
}
img{
    width:100%;
    border-radius:10px;
}
.btn{
    display:inline-block;
    margin-top:20px;
    background:#0d6efd;
    color:white;
    padding:12px 25px;
    text-decoration:none;
    border-radius:5px;
}
.service-icon{
    text-align:center;
    margin-bottom:30px;
}
.service-icon i{
    font-size:100px;
    color:#0d6efd;
    margin-bottom:15px;
    transition:.3s;
}
.service-icon h2{
    color:#333;
    font-size:2rem;
}
.service-icon i:hover{
    transform:scale(1.1) rotate(10deg);
}
.whatsapp {
  position: fixed;
  bottom: 20px;
  right: 20px;
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background: #25d366;
  color: white;
  display: flex;
  justify-content: center;
  align-items: center;
  text-decoration: none;
  font-size: 30px;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
}
footer {
  background: #0d6efd;
  color: white;
  text-align: center;
  padding: 20px;
}
.logo{
    display:flex;
    align-items:center;
    gap:12px;
    color:white;
    font-size:1.5rem;
    font-weight:700;
}

.logo img{
    width:50px;
    height:50px;
    object-fit:contain;
}
.precio {
    background: #aeff00;
    color: #000;
    padding: 2px 8px;
    border-radius: 20px;
    font-weight: bold;
}
li a {
    color: inherit;
    text-decoration: underline;
    transition: 0.3s;
}
li a:hover {
    opacity: 0.8;
}
.producto-sello{
    display:flex;
    gap:30px;
    max-width:1200px;
    margin:auto;
    padding:20px;
}

.descripcion{
    flex:1;
}

.configuracion{
    width:350px;
}

.configuracion select,
.configuracion textarea,
.configuracion input[type="file"]{
    width:100%;
    padding:12px;
    margin-top:8px;
    margin-bottom:20px;
    border:1px solid #ccc;
}

#cantidad {
    width: 100%;
    padding: 12px;
    font-size: 16px;
    border: 2px solid #d0d0d0;
    border-radius: 8px;
    background-color: #fff;
    box-sizing: border-box;
    transition: all 0.3s ease;
}

#cantidad:focus {
    outline: none;
    border-color: #0077cc;
    box-shadow: 0 0 8px #0077cc4d;
}

.btncotizar{
    background:#0d6efd;
    color:white;
    border:none;
    padding:15px 25px;
    cursor:pointer;
    font-size:16px;
}

.btncotizar:hover{
    background:#0d6efd;
}

.aviso{
    margin-top:40px;
    font-weight:bold;
}
.file-label {
    display: inline-block;
    padding: 12px 20px;
    background: #0077cc;
    color: white;
    border-radius: 8px;
    cursor: pointer;
    font-weight: bold;
    text-align: center;
    transition: 0.3s;
}

.file-label:hover {
    background: #005fa3;
    transform: translateY(-2px);
}

#nombreArchivo {
    margin-top: 10px;
    font-size: 14px;
    color: #555;
}
.modelo-preview {
    margin-top: 15px;
    text-align: center;
}
.modelo-preview img {
    max-width: 300px;
    width: 100%;
    border-radius: 10px;
    border: 1px solid #ddd;
    padding: 10px;
}
#visorModelos {
    width: 50%;
    max-width: 400px;
    padding: 12px 15px;
    font-size: 16px;
    border: 2px solid #dcdcdc;
    border-radius: 10px;
    background-color: #fff;
    color: #333;
    cursor: pointer;
    transition: all 0.3s ease;
}

#previewContainer{
    margin-top:15px;
    padding:10px;
    border:1px solid #ddd;
    border-radius:8px;
    background:#f8f8f8;
}

#previewImagen{
    max-width:200px;
    max-height:200px;
    width:auto;
    height:auto;
    display:block;
    margin-bottom:10px;
    border-radius:6px;
    border:1px solid #ccc;
}

#previewPDF{
    align-items:center;
    gap:10px;
    font-size:18px;
    color:#d32f2f;
    margin-bottom:10px;
}

#previewPDF i{
    font-size:40px;
}

#infoArchivo{
    margin:0;
    font-weight:bold;
    color:#555;
}