body {
  margin: 0;
  font-family: "Montserrat", sans-serif;
  background: transparent;
}

/* HEADER */
.app-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 64px;
  padding: 0 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  backdrop-filter: blur(14px);
  background: rgba(0,0,0,0.35);
  border-bottom: 1px solid rgba(255,255,255,0.15);
  transition: box-shadow 0.3s ease;
  z-index: 10000;
}

.app-header.scrolled {
  box-shadow: 0 6px 20px rgba(0,0,0,0.45);
}

/* LEFT */
.header-left a {
  color: #00E1FF;
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: 0.4px;
  text-decoration: none;
}

/* CENTER NAV */
.header-nav {
  display: flex;
  gap: 22px;
}

.header-nav a {
  color: #e8eaec;
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 600;
  position: relative;
  transition: 0.3s;
}

.header-nav a:hover,
.header-nav a.active {
  color: #00E1FF;
}

.header-nav a.active::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -6px;
  width: 100%;
  height: 2px;
  background: #00E1FF;
  border-radius: 2px;
}

/* RIGHT USER (STATIC) */
.header-right {
  position: relative;
}

.user-trigger {
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
}

.user-avatar {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: rgba(255,255,255,0.15);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #00E1FF;
}

.user-name {
  font-size: 0.85rem;
  font-weight: 600;
  color: #e8eaec;
}

.role-badge {
  font-size: 0.65rem;
  padding: 2px 8px;
  border-radius: 10px;
  background: rgba(0,225,255,0.15);
  color: #00E1FF;
  font-weight: 600;
}

/* DROPDOWN */
.user-dropdown {
  position: absolute;
  right: 0;
  top: 52px;
  background: rgba(0,0,0,0.6);
  backdrop-filter: blur(14px);
  border: 1px solid rgba(255,255,255,0.15);
  border-radius: 10px;
  overflow: hidden;
  min-width: 180px;
  display: none;
}

.user-dropdown.show {
  display: block;
}

.user-dropdown a {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 14px;
  font-size: 0.85rem;
  color: #e8eaec;
  text-decoration: none;
  transition: 0.3s;
}

.user-dropdown a:hover {
  background: rgba(255,255,255,0.1);
  color: #00E1FF;
}

/* MOBILE */
.mobile-toggle {
  display: none;
  font-size: 1.2rem;
  color: #00E1FF;
  cursor: pointer;
}

@media (max-width: 900px) {
  .header-nav {
    position: fixed;
    top: 64px;
    left: 0;
    right: 0;
    background: rgba(0,0,0,0.75);
    backdrop-filter: blur(14px);
    flex-direction: column;
    padding: 12px 0;
    display: none;
  }

  .header-nav.show {
    display: flex;
  }

  .header-nav a {
    padding: 12px 20px;
  }

  .mobile-toggle {
    display: block;
  }
}