.form,
.gallery {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    margin-top: 20px;
    background: #fff;
    padding: 20px;
    border-radius: 12px;
    box-shadow: 0 6px 18px rgba(0,0,0,0.08);  /* https://developer.mozilla.org/en-US/docs/Web/CSS/box-shadow */
    width: 500px;
    margin-inline: auto;
    transition: all 0.3s ease-in-out;
}
  
.form input {
    width: 96%;
    padding: 10px 10px;
    border: 1.5px solid #cccccc;
    border-radius: 8px;
    margin-bottom: 8px;
    font-size: 14px;
    outline: none; /* https://developer.mozilla.org/en-US/docs/Web/CSS/outline-style */
    transition: border .2s, box-shadow .2s; /* https://developer.mozilla.org/en-US/docs/Web/CSS/transition */
}
  
.form input:focus {
    border-color: #2563eb;
    box-shadow: 0 0 0 3px rgba(37, 100, 235, 0.544);
}
  
.form button {
    background: #2563eb;
    color: #fff;
    font-weight: 600;
    padding: 10px 16px;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    transition: background .2s
}
  
.form button:hover {
    background: #1d4ed8;    
}

#upload {
    display: flex;
    justify-content: center; 
}