header {
  position: fixed;
  z-index: 40;
  top: 0;
  left: 0;
  right: 0;
  width: 100%;
  height: var(--header-height);
  background-color: var(--color-background);
  display: flex;
  align-items: center;
  padding: 0 16px;
}

.mobile-menu-icon {
  height: 20px;
  width: 20px;
  cursor: pointer;
}

.mobile-menu-icon.icon-close {
  display: none;
}

.header-menu-btn {
  position: relative;
  display: none;
  width: 32px;
  height: 32px;
  cursor: pointer;
  border-radius: 100%;
  align-items: center;
  justify-content: center;
  transition: var(--transition-base);
}

.header-menu-btn:hover {
  background-color: var(--color-icon-hover);
}

.header-menu-btn:hover .header-menu-right-icon,
.header-menu-btn:hover .header-menu-left-icon {
  opacity: 1;
}

.header-menu-icon {
  position: absolute;
  width: 28px;
  height: 28px;
  color: var(--color-default);
  transition: var(--transition-base);
}

.header-menu-right-icon,
.header-menu-left-icon {
  position: absolute;
  display: none;
  width: 28px;
  height: 28px;
  opacity: 0;
  color: var(--color-primary);
  transition: var(--transition-base);
}

.login__btn:hover {
  color: var(--color-primary);
}

.start__btn {
  padding: 8px 12px;
  border-radius: 20px;
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  line-height: var(--line-height-sm);
  color: var(--color-btn-login);
  background-color: var(--color-btn-login-bg);
  transition: var(--transition-base);
}

.start__btn:hover {
  opacity: 0.8;
}

.mobile-menu-content {
  display: none;
  background-color: var(--color-background);
  position: fixed;
  z-index: 50;
  top: 64px;
  right: 0;
  bottom: 0;
  left: 0;
  width: 100%;
  height: calc(100vh - 64px);
  border-top: 1px solid var(--color-border);
  padding: 0px 24px 40px;
}

.mobile-menu__title {
  display: block;
  width: 100%;
  font-weight: var(--font-weight-semibold);
  padding-top: 16px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--color-border);
}

.mobile-menu__title:hover {
  color: var(--color-primary);
}

.mobile-menu-accordion {
  margin-top: 16px;
}

.mobile-menu-accordion__item {
  border-bottom: 1px solid var(--color-border);
}

.mobile-menu-accordion__header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-bottom: 16px;
  cursor: pointer;
}

.mobile-menu-accordion__title {
  font-weight: var(--font-weight-semibold);
}

.mobile-menu-accordion__title:hover {
  color: var(--color-primary);
}

.mobile-menu-accordion__icon {
  width: 18px;
  height: 18px;
  transition: var(--transition-base);
  transform: rotate(180deg);
}

.mobile-menu-accordion__content {
  display: none;
  padding-bottom: 16px;
  padding-left: 32px;
}

.mobile-menu-accordion__link {
  display: flex;
  flex-direction: column;
  gap: 4px;
  margin-bottom: 12px;
}

.mobile-menu-accordion__link-title {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: var(--font-weight-semibold);
}

.mobile-menu-accordion__link-desc {
  font-weight: var(--font-weight-normal);
  color: var(--color-text-secondary);
}
.mobile-menu-accordion__nav-icon {
  width: 24px;
  height: 24px;
}

/* sm	640px	@media (min-width: 640px) { ... } */
@media (min-width: 640px) {
}

/* md	768px	@media (min-width: 768px) { ... } */
@media (min-width: 768px) {
  header {
    padding: 0 32px;
  }
}

/* lg	1024px	@media (min-width: 1024px) { ... } */
@media (min-width: 1024px) {
}

/* xl	1280px	@media (min-width: 1280px) { ... } */
@media (min-width: 1280px) {
  .mobile-menu-icon {
    display: none !important;
  }

  .mobile-menu-content {
    display: none !important;
  }

  .header-menu-btn {
    display: flex;
  }
}

/* 2xl	1536px	@media (min-width: 1536px) { ... } */
@media (min-width: 1536px) {
}