/* Topbar */
.topbar{
  position: sticky;
  top:0;
  z-index:50;
  background: rgba(255,255,255,.96);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--c-border);
  box-shadow: 0 10px 26px rgba(46,47,47,.06);
}

.topbar .container{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
}

/* Brand */
.brand{
  display:flex;
  align-items:center;
  gap:14px;
}

.brand-title{
  font-family: var(--font-head);
  font-weight:800;
  letter-spacing:.2px;
}

.brand-sub{
  font-size:12px;
  color: var(--c-muted);
}

.brand-logo img{
  height:42px;
  width:auto;
  display:block;
}

.brand-text{
  display:flex;
  flex-direction:column;
  line-height:1.1;
}

/* Nav */
.nav{
  display:flex;
  align-items:center;
  gap:14px;
  flex-wrap:nowrap;
}

.nav a,
.nav-link{
  color: var(--c-text);
  text-decoration:none;
  font-size:13px;
  opacity:.9;
  white-space:nowrap;
}

.nav a:hover,
.nav-link:hover{
  opacity:1;
  text-decoration:underline;
}

/* Dropdown */
.nav-dd{ position:relative; }

.nav-dd-btn{
  display:inline-flex;
  align-items:center;
  gap:8px;
  white-space:nowrap;
  background:transparent;
  border:1px solid transparent;
  padding:8px 10px;
  border-radius:10px;
  cursor:pointer;
  font:inherit;
  color: var(--c-text);
  opacity:.95;
}

.nav-dd-btn:hover{
  border-color: var(--c-border);
}

.nav-dd-menu{
  position:absolute;
  right:0;
  top:calc(100% + 10px);
  min-width:220px;
  max-height:60vh;
  overflow:auto;
  background: var(--c-white);
  border:1px solid var(--c-border);
  border-radius:14px;
  box-shadow:0 10px 30px rgba(0,0,0,.10);
  padding:8px;
  display:none;
  z-index:50;
}

.nav-dd-menu a{
  display:block;
  padding:10px 10px;
  border-radius:10px;
  white-space:nowrap;
}

.nav-dd-menu a:hover{
  background: rgba(46,47,47,.06);
}

.nav-dd.is-open .nav-dd-menu{ display:block; }

/* Footer */
.footer{
  border-top:1px solid var(--c-border);
  margin-top:28px;
  padding:14px 0;
}

/* Responsive */
@media (max-width: 900px){
  .topbar .container{ flex-direction:column; align-items:flex-start; }
  .nav{ gap:10px; }
}

@media (max-width: 768px){
  .brand-logo img{ height:34px; }
}


.scroll-top{
  position: fixed;
  right: 20px;
  bottom: 20px;
  z-index: 80;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 14px;
  border-radius: 999px;
  border: 1px solid rgba(31,95,84,.25);
  background: rgba(255,255,255,.96);
  color: var(--c-primary);
  box-shadow: 0 14px 28px rgba(46,47,47,.12);
  cursor: pointer;
  font: inherit;
  font-weight: 700;
}

.scroll-top:hover{
  border-color: rgba(31,95,84,.40);
  transform: translateY(-1px);
}

.scroll-top[hidden]{
  display:none !important;
}

@media (max-width: 900px){
  .scroll-top{
    right: 14px;
    bottom: 14px;
    padding: 11px 13px;
  }
}