header {
    border-bottom: 1px solid #f7f7f7;
    background: #fff;
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 99;
}
#dt nav {
    display: flex;
    align-items: baseline;
    padding: 1.25em 2em 0;
    column-gap: 7em;
    max-width: 1300px;
    margin-inline: auto;
}
#mm {
    display: none;
}
.logo {
    width: 100%;
    padding-bottom: 0.75em;
    max-width: 85px;
}
#dt ul,
#dt li {
    list-style: none;
    font-weight: 500;
}
#dt li {
    padding: 0.75em 1em 0.825em;
}
.cat ul.level-1,
.cat ul.level-2 {
    display: flex;
    column-gap: 1em;
    margin: 0;
    padding-inline-start: 0;
}
.subm, .panel-menu {
    opacity: 0;
    visibility: hidden;
    transition: opacity .35s ease 0.25s, visibility 0.1s linear .9s;
    z-index: 2;
}
#dt .subm li {
    padding: 0.5em;
}

header nav ul > li:hover .subm,
header nav ul > li:focus-within .subm,
header nav .subm li:hover .panel-menu,
header nav .subm li:focus-within .panel-menu{
    opacity: 1;
    z-index: 55;
    visibility: visible;
    transition: opacity .3s ease, visibility linear .1s 0s;
}


/* Prevent buffer from blocking clicks to submenu */
header nav ul > li::before {
  pointer-events: none;
}

#dt ul.level-1 > li{
    background-color: var(--white);
    border-radius: 5px 5px 0 0;
    transition: background-color 0.4s ease;

}

#dt ul.level-1 > li:hover,
#dt ul.level-1 > li:focus-within
 {
    background-color: var(--off-white);
    transition: background-color .3s ease;
}
ul.level-2 li > a:hover::after {
  content: "";
  display: block;
  width: 30px;
  height: 1px;
  background-color: var(--mustard);
  margin: 0.25em 0 0;
  position: absolute;
}
.subm {
    position: absolute;
    top: 100%;
    width: 100%;
    left: 0;
    right: 0;
    padding: 0.5em 0;
    background-color: var(--off-white);
    border-bottom: 1px solid #ECEBE2;
}
.subm ul.level-2,
.subm ul.level-3 {
    max-width: 1300px;
    margin-inline: auto;
    padding-left: 14.75em;
    column-gap: 1.75em;
}
.subm ul li {
    /* font-size: 0.9375em; */
}
#micons {
    margin-inline: auto 5%;
    margin-bottom: 0.5em;
}
#micons img {
    padding-inline: 0.5em;
}


/* Test css */

.columns { 
    display: grid; 
    grid-template-columns: repeat(3, minmax(200px, 20%));
    gap: 2em; 
}
.group { 
    list-style:none; 
}
.panel-menu {
    position: absolute;
    left: 0;
    right: 0;
    top: 100%;
    background: var(--off-white);
    z-index: 5;
    width: 100%;
    border-top: 1px solid #ECEBE2;
    padding-block: 1em 1.5em;
}
.group-title {
    font-size: 1.5em;
    font-family: "graveur-variable", sans-serif;
    font-variation-settings: "opsz" 10, "wght" 400;
    letter-spacing: -1px;
    color: var(--dark-blue);
    line-height: 1.1;
    border-bottom:1px solid var(--mustard);
    padding-bottom: 0.25rem; 
    margin-bottom: 0.5rem;
}
ul.links {
    margin: 0; 
    padding: 0;
    margin-top: 1.5em;
}
#dt ul.level-3 ul.links li {
    padding: 0;
    padding-left: 0.5em;
    font-weight: 400;
    list-style: none; 
    margin: 0.5rem 0;
}
/* End test css */

@media screen and (max-width: 1100px) {
    #dt nav {
        column-gap: 3em;
    }
    .subm ul.level-2,
    .subm ul.level-3 {
        padding-left: 10.75em;
    }
    #micons {
        margin-inline: auto 0;
    }
    .cat ul.level-1,
    .cat ul.level-2 {
        column-gap: 1em;
    }
}
@media screen and (max-width: 900px) {
    .logo {
        max-width: 75px;
    }
    .cat ul.level-1,
    .cat ul.level-2 {
        column-gap: 0.25em;
    }
    #dt nav {
        column-gap: 2em;
        padding: 1.25em 1em 0;
    }
    .subm ul.level-2 ,
    .subm ul.level-3{
        padding-left: 8.25em;
    }
}
@media screen and (max-width: 768px) {
    header#dt {
        display: none;
    }
    header#mm {
        display: block;
    }
    .logo {
        width: 100%;
        max-width: 75px;
    }
    header#mm {
        position: fixed;
        top: 0;
        left: 50%;
        transform: translateX(-50%);
        width: 100%;
        max-width: 768px;
        margin: 0 auto;
        z-index: 999;
        transition: height 0.3s ease-in-out;
    }
    /* header#mm.expand {
        height: 100%;
    } */
    #mm nav {
        display: flex;
        align-items: center;
        padding: 1.125em 1.5em;
        max-width: 700px;
        margin-inline: auto;
    }
    #micons a:last-child img {
        padding-right: 0;
    }
    #mm #micons {
        align-items: center;
        display: flex;
        margin-bottom: 0;
    }
    button {
       all: unset;
       cursor: pointer;
    }
    #menu-backdrop {
        display: none;
        position: absolute;
        top: 64px;
        left: 0;
        width: 100%;
        height: 100%;
    }
    #menu-backdrop.is-visible {
        display: block;
        display: none;
        background-color: aqua;
    }
}