.header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 15px 50px;
  background-color: #111;
}
.header-logo {
  display: flex;
  align-items: center;
}
.header-logo img {
  max-width: 50px;
}
.header-nav {
  display: flex;
  align-items: center;
  gap: 20px;
}
.header-nav a {
  color: #fff;
  text-decoration: none;
  font-size: 14px;
  transition: color 0.2s ease-in-out;
}
.header-nav a:hover,
.header-nav a.active {
  color: #00ffcc;
}
.header-cta {
  display: flex;
  gap: 10px;
}
.header-cta .btn {
  padding: 8px 20px;
  font-size: 14px;
  border: 1px solid #00ffcc;
  border-radius: 5px;
  background-color: transparent;
  color: #00ffcc;
  text-decoration: none;
  transition: background 0.2s ease-in-out;
}
.header-cta .btn.sign-up {
  background-color: #00ffcc;
  color: #000;
}
.header-cta .btn:hover {
  background-color: #00e6b3;
  color: #000;
}
.header-toggle {
  display: none;
  background: none;
  border: none;
  color: #fff;
  font-size: 24px;
  cursor: pointer;
}
.panel-overlay {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0,0,0,0.5);
  z-index: 1000;
}
.panel-overlay.active {
  display: block;
}
.mobile-panel {
  position: fixed;
  top: 0;
  left: -100%;
  width: 80%;
  max-width: 300px;
  height: 100%;
  background-color: #111;
  transition: left 0.3s ease-in-out;
  z-index: 1001;
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.mobile-panel.open {
  left: 0;
}
.mobile-panel .close-panel {
  align-self: flex-end;
  background: none;
  border: none;
  color: #fff;
  font-size: 24px;
  cursor: pointer;
}
.mobile-nav,
.mobile-cta {
  display: flex;
  flex-direction: column;
  gap: 15px;
}
@media (max-width: 768px) {
  .header {
    padding: 15px 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
  }
  .header-nav,
  .header-cta {
    display: none;
  }
  .header-toggle {
    display: block;
  }
  .mobile-nav a {
    color: #ccc;
  }
  .mobile-nav a:hover,
  .mobile-nav a.active {
    color: #00ffcc;
  }
}