.sr-only{
  position:absolute!important; width:1px;height:1px; padding:0;margin:-1px;
  overflow:hidden; clip:rect(0,0,0,0); border:0;
}

a{ text-decoration:none; }

/* Sticky header */
header{
  position: fixed;
  top: 0;
  z-index: 1000;
  background: var(--colors-background);
  box-shadow: 0 1px 5px 0 rgba(0,0,0,0.5);
}

header .brand a{
  display:flex; align-items:center; gap:.55rem;
  color: var(--colors-text-light); text-decoration:none;
}
header .brand i{ font-size:1.15rem; }

header > nav{
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 12px;
  max-width: 95%;
  margin: 0 auto;
  padding: 8px 0;
}

header > nav h1{ justify-self: start; }
header > nav a{ justify-self: end; }

header > nav .search-form{
  justify-self: center;
  width: 50%;
}

.search-bar{
  display:flex; 
  align-items:center; 
  gap:.6rem;
  background: var(--colors-accent); 
  border:1px solid var(--colors-main); 
  border-radius:9999px;
  padding:.5rem .7rem;
  transition:border-color .2s, box-shadow .2s, background .2s;
}
.search-bar:focus-within{
  border-color: var(--colors-main); 
  box-shadow:0 0 0 3px rgba(74,99,255,.25); 
  background: var(--colors-accent);
}

.search-icon{ color: var(--colors-text); 
  font-size:.95rem; 
  margin-left:.1rem; }

#site-search{
  flex:1 1 auto; 
  min-width:0;
  background:transparent; 
  color: var(--colors-text-light); 
  border:0; 
  outline:none;
  padding:.2rem .2rem; 
  font-size:.95rem;
}
#site-search::placeholder{ color: var(--colors-text); }

.search-bar .submit-btn,
.search-bar .clear-btn{
  appearance:none; 
  border:0; 
  cursor:pointer;
  width:34px; 
  height:34px; 
  border-radius:50%;
  display:grid; 
  place-items:center;
  transition:background .2s, transform .06s;
}
.search-bar .clear-btn{ background: var(--colors-accent); color: var(--colors-text); }
.search-bar .submit-btn{ background: var(--colors-main); color: var(--colors-text-light); }
.search-bar .submit-btn:hover{ background: var(--colors-text-hover); }
.search-bar .clear-btn:hover{ background: var(--colors-background-gray); }
.search-bar .submit-btn:active,
.search-bar .clear-btn:active{ transform:scale(.98); }

.search-bar .clear-btn{ opacity:0; pointer-events:none; }
.search-bar.has-value .clear-btn{ opacity:1; pointer-events:auto; }
.search-icon,
.search-bar .submit-btn i,
.search-bar .clear-btn i{
  font-size:.95rem;
  line-height:1;
}


#login_button{
  background: var(--colors-accent); 
  color: var(--colors-text-light); 
  border:2px solid var(--colors-main);
  padding:8px 16px; 
  border-radius:8px;
  transition:color .15s, border-color .15s, background .15s;
  display:inline-flex;
  align-items:center;
  gap:.45rem;
}
#login_button:hover{ color:var(--colors-text-hover, #276BD2); }

@media (min-width: 769px) {
    header {
        position: sticky;
    }
}
@media (max-width: 480px){
  .search-bar{ padding:.45rem .55rem; }
  #site-search{ font-size:.9rem; }
  .search-bar .submit-btn, .search-bar .clear-btn{ width:32px; height:32px; }
}

@media (max-width: 768px) {
    header {
        position: fixed;
        width: 100%;
        top: 0;
        left: 0;
    }
    header > nav {
        padding: 5px;
        gap: 0;
    }
    header .brand span {
        display: none;
    }
    .search-bar {
        width: 100%;
    }
    header > nav .search-form {
        width: 85%;
    }
    .header-actions {
        display: none !important;
    }
}

/* Gray Theme Overrides */
/* header background is now var(--colors-background) in general */

html.theme-default .search-bar {
  background: white;
  border-color: #ccc;
}

html.theme-default .search-bar:focus-within {
  background: white;
}

html.theme-default #site-search {
  color: black;
}

html.theme-default #site-search::placeholder {
  color: #666;
}

html.theme-default .search-icon {
  color: black;
}

html.theme-default .search-bar:hover .search-icon {
  color: black;
}