.bt-header {
  position: sticky;
  top: 0;
  z-index: 999;
  background: #111317;
  border-bottom: 1px solid rgba(255,255,255,0.08);
  transition: background 0.25s ease, backdrop-filter 0.25s ease;
}

.bt-header.is-scrolled {
  background: rgba(17, 19, 23, 0.85);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
}

.bt-header-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 10px 20px;
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: 'Roboto', sans-serif;
}

/* Logo */
.bt-logo {
  flex-shrink: 0;
}

.bt-logo img {
  height: 34px;
}

/* Busca — centro REAL */
.bt-search {
  flex: 0 0 460px;
  width: 460px;
  margin-left: auto;
  margin-right: auto;
  display: flex;
  align-items: center;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: #1A1D23;
  border-radius: 10px;
  padding: 8px 12px;
  gap: 10px;
  color: #ccc;
}

.bt-search i {
  font-size: 18px;
}

.bt-search input {
  flex: 1;
  background: none;
  border: none;
  outline: none;
  color: #fff;
  font-size: 13px;
}

.bt-search:focus-within {
  border: 1px solid rgba(255, 255, 255, 0.12);
  box-shadow: 0 0 0 2px rgba(255, 255, 255, 0.08);
}

.bt-kbd {
  font-size: 11px;
  background: #2B303B;
  padding: 3px 6px;
  border-radius: 6px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  color: #ccc;
}

/* Categorias — imediatamente após a search */
.bt-categories {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  gap: 6px;
  background: #1A1D23;
  border: 1px solid rgba(255, 255, 255, 0.08);
  color: #fff;
  padding: 8px 12px;
  border-radius: 10px;
  font-size: 13px;
  cursor: pointer;
}

/* DropDown Popup */
.bt-categories-wrapper {
  position: relative;
}

/* Dropdown */
.bt-categories-dropdown {
  position: absolute;
  top: calc(100% + 20px);
  left: 0;
  min-width: 220px;
  background: rgba(26, 29, 35, 0.88);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 14px;
  padding: 8px;
  display: none;
  z-index: 1000;
}

/* Lista */
.bt-categories-dropdown a {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  border-radius: 10px;
  color: #fff;
  font-size: 13px;
  text-decoration: none;
  transition: background 0.15s ease;
}

.bt-categories-dropdown a i {
  font-size: 18px;
  color: #aaa;
}

/* Hover */
.bt-categories-dropdown a:hover {
  background: rgba(255, 255, 255, 0.06);
}

/* Estado aberto */
.bt-categories-wrapper.active .bt-categories-dropdown {
  display: block;
}


/* Ações — depois de Categorias */
.bt-actions {
  flex-shrink: 0;
  margin-left: 14px;
  display: flex;
  align-items: center;
  gap: 12px;
}

/* Links */
.bt-login {
  color: #fff;
  text-decoration: none;
  font-size: 13px;
  opacity: 0.9;
}

.bt-announce {
  background: #ffdf00;
  color: #000;
  padding: 8px 14px;
  border-radius: 10px;
  font-weight: 500;
  font-size: 13px;
  text-decoration: none;
}

/* Ícones */
.bt-icon {
  position: relative;
  background: #1A1D23;
  border: 1px solid rgba(255, 255, 255, 0.08);
  color: #fff;
  width: 40px;
  height: 40px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
}

.bt-icon i {
  font-size: 20px;
}

.bt-badge {
  position: absolute;
  top: 5px;
  right: 5px;
  background: #ffdf00;
  color: #000;
  font-size: 10px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}