.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  backdrop-filter: blur(18px);
  background: linear-gradient(to bottom, rgba(3, 7, 20, 0.96), rgba(3, 7, 20, 0.88), rgba(3, 7, 20, 0.82));
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.site-header__inner {
  height: var(--header-height-desktop);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-lg);
}

.site-header__brand {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  text-decoration: none;
  color: inherit;
}

.site-header__logo-mark {
  width: 36px;
  height: 36px;
  border-radius: 14px;
  background: radial-gradient(circle at 20% 0, #ff7ac4 0, #ff4fa3 18%, #2f7bff 52%, #00d1ff 100%);
  box-shadow: 0 0 0 1px rgba(255, 255, 255, 0.18), 0 18px 40px rgba(0, 0, 0, 0.6);
  display: flex;
  align-items: center;
  justify-content: center;
}

.site-header__logo-mark-inner {
  width: 70%;
  height: 70%;
  border-radius: 12px;
  background: radial-gradient(circle at 30% 0, rgba(255, 255, 255, 0.9) 0, rgba(255, 255, 255, 0.1) 38%, transparent 100%);
  mix-blend-mode: screen;
}

.site-header__title {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.site-header__title-main {
  font-family: var(--font-display);
  font-size: 1.1rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.site-header__title-sub {
  font-family: var(--font-accent);
  font-size: 0.72rem;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--color-text-muted);
}

.site-header__nav {
  display: flex;
  align-items: center;
  gap: var(--space-2xl);
}

.site-header__nav-list {
  display: flex;
  align-items: center;
  gap: var(--space-xl);
  margin: 0;
  padding: 0;
}

.site-header__nav-item {
  margin: 0;
}

.site-header__nav-link {
  position: relative;
  font-family: var(--font-accent);
  font-size: var(--font-size-sm);
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: var(--color-text-soft);
  padding: 4px 0;
  white-space: nowrap;
}

.site-header__nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -6px;
  width: 0;
  height: 2px;
  border-radius: 999px;
  background: linear-gradient(90deg, #ff4fa3, #2f7bff);
  transition: width var(--transition-base);
}

.site-header__nav-link:hover {
  color: var(--color-text);
}

.site-header__nav-link:hover::after {
  width: 100%;
}

.site-header__nav-link--active {
  color: var(--color-text);
}

.site-header__nav-link--active::after {
  width: 100%;
}

.site-header__nav-cta {
  display: flex;
  align-items: center;
}

.site-header__nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-pill);
  border: 1px solid rgba(255, 255, 255, 0.18);
  background: radial-gradient(circle at top, rgba(255, 255, 255, 0.08) 0, rgba(10, 18, 45, 0.96) 40%, rgba(5, 10, 30, 0.98) 100%);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.65);
  color: var(--color-text);
}

.site-header__nav-toggle-bar {
  width: 18px;
  height: 2px;
  border-radius: 999px;
  background: linear-gradient(90deg, #ff7ac4, #2f7bff);
  transition: transform var(--transition-base), opacity var(--transition-base), width var(--transition-base);
}

.site-header__nav-toggle--open .site-header__nav-toggle-bar:nth-child(1) {
  transform: translateY(4px) rotate(45deg);
  width: 16px;
}

.site-header__nav-toggle--open .site-header__nav-toggle-bar:nth-child(2) {
  opacity: 0;
}

.site-header__nav-toggle--open .site-header__nav-toggle-bar:nth-child(3) {
  transform: translateY(-4px) rotate(-45deg);
  width: 16px;
}

.site-header {
  z-index: 9999;
}

.site-header__nav-toggle {
  position: relative;
  z-index: 10001;
  cursor: pointer;
}

.site-header__nav-drawer {
  position: fixed;
  top: var(--header-height-mobile);
  left: 0;
  right: 0;
  width: 100vw;
  height: calc(100dvh - var(--header-height-mobile));
  max-height: calc(100dvh - var(--header-height-mobile));

  background:
    radial-gradient(circle at top left, rgba(255, 79, 163, 0.16), transparent 34%),
    radial-gradient(circle at top right, rgba(47, 123, 255, 0.18), transparent 38%),
    linear-gradient(180deg, #070b1a 0%, #030611 100%);

  backdrop-filter: blur(22px);
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow: 0 24px 70px rgba(0, 0, 0, 0.75);

  padding: 28px 0 40px;
  overflow-y: auto;
  overflow-x: hidden;
  z-index: 10000;

  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transform: translateY(-14px);
  transition:
    opacity 0.25s ease,
    visibility 0.25s ease,
    transform 0.25s ease;
}

.site-header__nav-drawer--open {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: translateY(0);
}

.site-header__nav-drawer .container {
  max-width: 100%;
}

.site-header__nav-drawer-inner {
  min-height: 100%;
  display: flex;
  flex-direction: column;
  gap: var(--space-xl);
}

.site-header__nav-drawer-list {
  gap: 18px;
}

.site-header__nav-drawer-link {
  display: block;
  width: 100%;
  padding: 12px 0;
  font-size: clamp(1rem, 4.5vw, 1.25rem);
  line-height: 1.2;
  letter-spacing: 0.14em;
}

.site-header__nav-drawer-footer {
  margin-top: 20px;
}

.site-header__nav-drawer-inner {
  display: flex;
  flex-direction: column;
  gap: var(--space-xl);
}

.site-header__nav-drawer-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.site-header__nav-drawer-item {
  margin: 0;
}

.site-header__nav-drawer-link {
  font-family: var(--font-accent);
  font-size: var(--font-size-md);
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--color-text-soft);
}

.site-header__nav-drawer-link--active {
  color: var(--color-text);
}

.site-header__nav-drawer-footer {
  margin-top: auto;
  padding-top: var(--space-xl);
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.site-header__nav-drawer-meta {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
}

@media (max-width: 1023.98px) {
  .site-header__inner {
    height: var(--header-height-mobile);
  }
  .site-header__nav-list {
    display: none;
  }
  .site-header__nav-cta {
    display: none;
  }
  .site-header__nav-toggle {
    display: inline-flex;
  }
}

@media (max-width: 767.98px) {
  .site-header__inner {
    gap: var(--space-md);
  }
  .site-header__title-main {
    font-size: 1rem;
  }
}