main#content{
    display: grid;
    grid-template-columns: 1fr;
    gap: 1em;
    width: min(90%, 1250px);
    margin: 2em auto;
}

section.visual{
    position: relative;
    width: 100%;
    max-width: 600px;
    aspect-ratio: 1/1;
    margin: 0 auto;
    scroll-margin-top: 17em;
}

.product-overlay{
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
}

.pattern{
  position: absolute;
  inset: -50%;
  scale: 0.5;
  background-image: url('/path/to/pattern.png');
  background-repeat: repeat;
  background-size: auto;
  mix-blend-mode: overlay;
  opacity: 0;
  pointer-events: none;

  mask-image: url('/.images/products/roman-blinds-custom-style-stacked.webp');
  mask-size: cover;
  mask-repeat: no-repeat;

  -webkit-mask-image: url('/.images/products/roman-blinds-custom-style-stacked.webp');
  -webkit-mask-size: cover;
  -webkit-mask-repeat: no-repeat;
}

.product-overlay:has(img.active)>.pattern{
    opacity: 1;
}

.product-overlay img.product-img{
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
}

section.visual img{
    display: none;
    position: absolute;
    top: 0;
    left: 0;
    height: 100%;
    width: 100%;
}

section.visual img.active,
section.visual>img.room{
    display: block;
}

/* Product Information */
.product-info{
    margin: 0;
}

.product-info>h1{
    margin-top: 0;
}

div.list{
    width: 100%;
    text-transform: capitalize;
    border-radius: 1em;
    margin-block: 1em;
    overflow: hidden;
}

div.list>p{
    font-weight: 600;
}

div.list>p,
div.list>div>button{
    display: block;
    width: 100%;
    font-size: 1em;
    text-align: start;
    text-transform: capitalize;
    color: var(--black);
    background-color: #fff;
    padding: 1em;
    margin: 0;
    transition: all 300ms;
    cursor: pointer;
}

div.list>div{
    box-sizing: border-box;
    max-height: 0;
    transition: all 500ms;
}

div.list:hover>div,
div.list.toggle>div{
    max-height: 5000px;
    transition: all 300ms;
}

div.list>div>button:hover{
    background-color: var(--grey);
}

div.list.extra,
div.list>div.product-choice>button{
    display: none;
}

div.list.extra.active,
div.list>div.product-choice>button.active{
    display: block;
}

/* Colour Options */
.option-list{
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    grid-auto-rows: 1fr;
    gap: 0.5em;
    list-style: none;
    padding: 0;
    margin: 1em auto;
}

button.colour{
    height: 100%;
    width: 100%;
    color: var(--black);
    background-color: var(--grey);
    border-radius: 1em;
    padding: 0;
    overflow: hidden;
    transition: all 300ms;
}

button.colour:hover{
    color: var(--white);
    background-color: var(--blue-2);
}

button.colour>div{
    width: 100%;
    aspect-ratio: 1/1;
    background-repeat: repeat;
}

/* Pattern information */
.pattern-info{
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 0.5em;
    text-align: center;
}

.pattern-info img{
    box-sizing: border-box;
    width: 80%;
    aspect-ratio: 1/1;
    object-fit: contain;
}

.pattern-size{
    background-color: var(--black);
    border-radius: 50%;
    padding: 1em;
}

/* Collection Section */
.range-links{
    display: flex;
    gap: 1em;
    flex-wrap: wrap;
    margin-top: 1em;
}

.range-links>a.spec{
    margin: auto 1em auto auto;
}

.brand{
    display: none;
    flex-grow: 1;
    height: 12em;
    object-fit: contain;
}

.brand>img{
    height: 100%;
    width: 100%;
    object-fit: contain;
}

.collection{
    display: none;
    box-sizing: border-box;
    position: relative;
    flex: 1 1 80%;
    color: var(--white);
    text-decoration: none;
    background-color: var(--color);
    border: 1em solid var(--color);
    border-radius: 1.5em;
    transition: all 150ms;
    transition-delay: 0ms;
}

.collection:active{
    border-radius: 0;
    transition-delay: 0ms;
}

.collection>h3{
    position: absolute;
    bottom: 1rem;
    left: 1rem;
    width: 65%;
    color: var(--white);
    text-wrap: balance;
    filter: drop-shadow(1px 1px 0 var(--black));
    margin: 0;
}

.collection>h3>svg{
    height: 1em;
    vertical-align: middle;
    fill: var(--white);
    padding-left: 0.2em;
    transition: all 150ms;
}

.collection>img{
    height: 100%;
    width: 100%;
    aspect-ratio: 3/2;
    object-fit: cover;
    border-radius: 0.5em;
    transition: all 150ms;
    transition-delay: 0ms;
}

.collection:active,
.collection:hover,
.collection:active>img,
.collection:hover>img{
    border-radius: 0;
    transition-delay: 0ms;
}

.collection>img.logo{
    position: absolute;
    bottom: 0;
    right: 0;
    height: auto;
    width: 30%;
    border-radius: 0;
    aspect-ratio: auto;
}

.brand.active,
.collection.active{
    display: block;
}

/* Product options list with descriptions */
.options{
    max-width: 90vw;
}

.options>div{
    display: none;
}

.options>div:has(.grid>article.active){
    display: block;
}

div.grid{
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(600px, 1fr));
    grid-auto-rows: 1fr;
    gap: 1em;
    object-fit: cover;
}

div.grid>article{
    display: none;
    background-color: var(--grey);
    border-radius: 1em;
    max-width: 90vw;
    overflow: hidden;
}

div.grid>article.active{
    display: flex;
}

div.grid>article>img{
    display: none;
    height: 100%;
    width: 40%;
    max-width: 200px;
    aspect-ratio: 1/1;
}

div.grid>article>div{
    align-self: center;
    padding: 1em;
}

div.grid>article>div>h4{
    margin: 0;
}

div.grid>article>div>p{
    margin-bottom: 0;
}

/* Bar */
.bar{
    position: relative;
    display: grid;
    grid-template-columns: 1fr;
    min-height: 40svh;
    background-color: var(--grey);
}

.bar>article{
    padding-inline: 3em;
    margin: auto;
}

.bar>img{
    position: relative;
    top: 10%;
    width: 100%;
    max-height: 630px;
    max-width: 800px;
    object-fit: contain;
    margin: auto;
}

/* Contact From */
.contact-form{
    margin-inline: 5%;
}

.contact-form form{
    display: grid;
    grid-template-columns: 1fr;
    gap: 1em;
}

.contact-form form div{
    position: relative;
}

.contact-form input, 
.contact-form textarea{
    box-sizing: border-box;
    width: 100%;
    font-family: "montserrat", sans-serif;
        font-weight: 500;
        font-style: normal;
    font-size: 1.2em;
    outline: none;
    background-color: transparent;
    color: var(--black);
    border: 3px solid var(--shadow-2);
    padding: 0.5em 1em;
    transition: all 100ms;
}

div.field:first-of-type>input{
    border-radius: 1em 1em 0 0;
}

.contact-form textarea{
    height: 12em;
    resize: none;
    border-radius: 0 0 1em 1em;
}

.contact-form textarea:placeholder-shown{
    font-family: "montserrat", sans-serif;
        font-weight: 600;
        font-style: normal;
    font-size: 1.2em;
}

.contact-form textarea:not(:placeholder-shown){
    border: 3px solid var(--blue);
    box-shadow: 0 5px 10px var(--blue);
}

.contact-form label{
    position: absolute;
    top: 50%;
    left: 1.5em;
    pointer-events: none;
    font-family: "montserrat", sans-serif;
        font-weight: 600;
        font-style: normal;
    font-size: 1.2em;
    color: var(--shadow-2);
    transform: translateY(-50%);
    transition: all 300ms ease-in-out;
}

.contact-form input:focus,
.contact-form input:valid,
.contact-form textarea:focus{
    border: 3px solid var(--blue);
}

.contact-form input:focus + label,
.contact-form input:valid + label,
.contact-form textarea:focus + label{
    top: -0.1em;
    left: 0.5em;
    font-size: 1em;
    padding: 0 1em;
    color: var(--blue);
    background: var(--white);
}

@media (min-width: 761px){
    .option-list{
        grid-template-columns: repeat(4, 1fr);
    }

    .pattern-info{
        gap: 1em;
    }

    .collection>h3>svg{
        fill: transparent;
        padding-left: 0;
        padding-right: 0.2em;
    }

    .collection:hover>h3>svg{
        fill: var(--white);
        padding-right: 0;
        padding-left: 0.2em;
    }

    div.grid>article>img{
        display: block;
    }

    /* Contact From */
    .contact-form form{
        grid-template-columns: 1fr 1fr;
    }

    div.field:first-of-type>input{
        border-radius: 1em 0 0 0;
    }

    div.field:nth-of-type(2)>input{
        border-radius: 0 1em 0 0;
    }

    div.field:nth-of-type(3){
        grid-column: span 2;
    }
}

@media (min-width: 1166px){
    main#content{
        grid-template-columns: 1fr 1fr;
        width: min(90%, 1250px);
        margin: 5em auto;
    }
    
    section.visual{
        position: sticky;
        top: 6em;
        scroll-margin-top: 6em;
    }

    .pattern-info{
        gap: 3em;
    }
    
    .bar{
        grid-template-columns: 2fr 3fr;
        place-content: center;
    }

    .bar>img{
        top: -15%;
        height: 100%;
        width: auto;
    }

    /* Contact From */
    .contact-form{
        max-width: 1250px;
        padding-inline: 1em;
        margin-inline: auto;
    }
}