.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-height);
  background: rgba(9, 9, 11, 0.8);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--glass-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 20px;
  z-index: 1000;
}
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
}
.logo-icon {
  width: 34px;
  height: 34px;
  background: var(--bg-elevated);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 16px;
  overflow: hidden;
}
.logo-icon-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.logo-text {
  font-weight: 600;
  font-size: 16px;
  color: var(--text-primary);
}
.logo-text span {
  color: var(--text-primary);
}
.header-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}
.header-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px 14px;
  background: var(--bg-elevated);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  color: var(--text-secondary);
  font-size: 12px;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-normal);
  text-decoration: none;
}
.header-btn:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
  border-color: rgba(255, 255, 255, 0.1);
}
.header-btn.primary {
  background: var(--accent-primary);
  border-color: var(--accent-primary);
  color: #09090b;
}
.header-btn.primary:hover {
  background: #b794fc;
  border-color: #b794fc;
}

.header-btn.anticheat-btn {
  position: relative;
  overflow: hidden;
  font-weight: 600;
  padding: 8px 16px;
  border: none;
}
.header-btn.anticheat-btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 0;
}
.header-btn.anticheat-btn .anticheat-btn-text {
  position: relative;
  z-index: 1;
}
.header-btn.anticheat-btn[data-anticheat="eacbe"] {
  background: linear-gradient(135deg, #3b82f6 0%, #3b82f6 50%, #eab308 50%, #eab308 100%);
  color: #fff;
  text-shadow: 0 1px 2px rgba(0,0,0,0.3);
}
.header-btn.anticheat-btn[data-anticheat="eacbe"]:hover {
  background: linear-gradient(135deg, #60a5fa 0%, #60a5fa 50%, #facc15 50%, #facc15 100%);
}
.header-btn.anticheat-btn[data-anticheat="vanguard"] {
  background: #dc2626;
  color: #fff;
}
.header-btn.anticheat-btn[data-anticheat="vanguard"]:hover {
  background: #ef4444;
}
.header-btn.anticheat-btn[data-anticheat="ricochet"] {
  background: #166534;
  color: #fff;
}
.header-btn.anticheat-btn[data-anticheat="ricochet"]:hover {
  background: #22c55e;
}