.bt-site-header-host,
.bt-site-header-wrapper {
  position: relative;
  z-index: 1200;
}

.analytics-v5-topbar.bt-site-header-wrapper,
.tools-header.bt-site-header-wrapper {
  display: block;
  overflow: visible;
}

.analytics-v5-topbar.bt-site-header-wrapper {
  min-height: 0;
  padding: 0;
  border: 0;
  border-radius: 0;
  background: transparent;
  box-shadow: none;
  backdrop-filter: none;
}

.analytics-v5-topbar.bt-site-header-wrapper::before,
.analytics-v5-topbar.bt-site-header-wrapper::after {
  display: none;
}

.tools-header.bt-site-header-wrapper {
  padding: 10px clamp(12px, 2vw, 24px);
  border-bottom: 0;
  background: transparent;
  backdrop-filter: none;
}

.bt-topbar-shell.bt-site-header-wrapper,
.indicator-topbar-shell.bt-site-header-wrapper {
  overflow: visible;
}

.bt-topbar-shell:not(.bt-site-header-wrapper) > .bt-topbar,
.bt-topbar-shell:not(.bt-site-header-wrapper) > .bt-mobile-dropdown,
.indicator-topbar-shell:not(.bt-site-header-wrapper) > .bt-topbar,
.indicator-topbar-shell:not(.bt-site-header-wrapper) > .bt-mobile-dropdown,
.tools-header:not(.bt-site-header-wrapper) > *,
.analytics-v5-topbar:not(.bt-site-header-wrapper) > * {
  visibility: hidden;
}

.bt-site-header-host *,
.bt-site-header-wrapper * {
  box-sizing: border-box;
}

.bt-site-header {
  width: min(100%, 1280px);
  min-height: 76px;
  margin: 0 auto;
  padding: 12px 14px 12px 18px;
  display: flex;
  align-items: center;
  gap: 18px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 22px;
  background:
    linear-gradient(135deg, rgba(12, 18, 28, 0.93), rgba(6, 9, 15, 0.92)),
    rgba(8, 12, 19, 0.9);
  box-shadow: 0 18px 42px rgba(0, 0, 0, 0.28);
  backdrop-filter: blur(18px);
}

.bt-site-header__brand {
  display: inline-flex;
  align-items: center;
  flex: 0 0 auto;
  min-width: 0;
  text-decoration: none;
}

.bt-site-header__logo {
  display: block;
  width: auto;
  height: clamp(30px, 2.1vw, 38px);
  max-width: 156px;
  object-fit: contain;
  filter: drop-shadow(0 4px 16px rgba(0, 0, 0, 0.34));
}

.bt-site-header__nav {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 4px;
  flex: 1 1 auto;
  min-width: 0;
  margin-left: auto;
  margin-right: 12px;
}

.bt-site-header__link,
.bt-site-header__tools-trigger {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 78px;
  height: 36px;
  min-height: 36px;
  padding: 0 10px;
  border: 0;
  border-radius: 999px;
  background: transparent;
  color: rgba(238, 232, 224, 0.74);
  font-family: inherit;
  font-size: clamp(14px, 0.95vw, 16px);
  font-weight: 700;
  line-height: 1;
  letter-spacing: 0.01em;
  white-space: nowrap;
  text-decoration: none;
  cursor: pointer;
  transition:
    color 180ms ease,
    transform 180ms ease;
}

.bt-site-header__link::after,
.bt-site-header__tools-trigger::after {
  content: "";
  position: absolute;
  left: 9px;
  right: 9px;
  bottom: -6px;
  height: 2px;
  border-radius: 999px;
  transform: scaleX(0);
  transform-origin: left center;
  background: linear-gradient(90deg, rgba(239, 197, 109, 0.7), rgba(255, 220, 167, 0.92), rgba(239, 197, 109, 0.7));
  transition: transform 200ms ease;
  box-shadow: 0 0 12px rgba(239, 197, 109, 0.35);
}

.bt-site-header__link:hover,
.bt-site-header__link:focus-visible,
.bt-site-header__tools-trigger:hover,
.bt-site-header__tools:focus-within .bt-site-header__tools-trigger {
  background: transparent;
  color: #efc56d;
  text-shadow: 0 0 10px rgba(239, 197, 109, 0.24);
  outline: none;
}

.bt-site-header__link:hover::after,
.bt-site-header__link:focus-visible::after,
.bt-site-header__tools-trigger:hover::after,
.bt-site-header__tools:focus-within .bt-site-header__tools-trigger::after {
  transform: scaleX(1);
}

.bt-site-header__link--accent {
  color: #efc56d;
}

.bt-site-header__tools {
  position: relative;
  display: inline-flex;
  align-items: center;
}

.bt-site-header__tools::after {
  content: "";
  position: absolute;
  top: 100%;
  left: 50%;
  z-index: 1;
  width: min(360px, calc(100vw - 36px));
  height: 18px;
  transform: translateX(-50%);
}

.bt-site-header__chevron {
  width: 14px;
  height: 14px;
  margin-left: 7px;
  flex: 0 0 auto;
  transition: transform 0.18s ease;
}

.bt-site-header__tools:hover .bt-site-header__chevron,
.bt-site-header__tools:focus-within .bt-site-header__chevron {
  transform: rotate(180deg);
}

.bt-site-tools-menu {
  position: absolute;
  top: calc(100% + 8px);
  left: 50%;
  z-index: 2;
  width: max-content;
  min-width: 250px;
  max-width: min(340px, calc(100vw - 36px));
  padding: 6px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 8px;
  background:
    linear-gradient(135deg, rgba(13, 20, 30, 0.98), rgba(7, 11, 18, 0.98)),
    rgba(9, 14, 22, 0.98);
  box-shadow: 0 24px 70px rgba(0, 0, 0, 0.48);
  opacity: 0;
  pointer-events: none;
  transform: translate(-50%, 8px);
  transition:
    opacity 0.18s ease,
    transform 0.18s ease;
  overflow: hidden;
}

.bt-site-header__tools:hover .bt-site-tools-menu,
.bt-site-header__tools:focus-within .bt-site-tools-menu {
  opacity: 1;
  pointer-events: auto;
  transform: translate(-50%, 0);
}

.bt-site-tools-menu::before {
  content: "";
  position: absolute;
  left: 50%;
  top: -8px;
  width: 16px;
  height: 16px;
  border-left: 1px solid rgba(255, 255, 255, 0.1);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  background: rgba(12, 18, 28, 0.98);
  transform: translateX(-50%) rotate(45deg);
}

.bt-site-tools-menu__grid {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
}

.bt-site-tools-menu__item {
  min-height: 0;
  display: block;
  padding: 10px 12px;
  color: inherit;
  text-decoration: none;
  transition:
    background-color 0.18s ease,
    transform 0.18s ease;
}

.bt-site-tools-menu__item + .bt-site-tools-menu__item {
  border-top: 1px solid rgba(255, 255, 255, 0.07);
}

.bt-site-tools-menu__item:hover,
.bt-site-tools-menu__item:focus-visible {
  background: rgba(239, 197, 109, 0.08);
  transform: translateY(-1px);
  outline: none;
}

.bt-site-tools-menu__icon {
  display: none;
  width: 52px;
  height: 52px;
  align-items: center;
  justify-content: center;
  border: 0;
  border-radius: 8px;
  background: transparent;
}

.bt-site-tools-menu__icon img {
  width: 34px;
  height: 34px;
  object-fit: contain;
}

.bt-site-tools-menu__title {
  display: block;
  margin: 0 0 3px;
  color: #ffffff;
  font-size: 13px;
  font-weight: 900;
  line-height: 1.2;
}

.bt-site-tools-menu__desc {
  display: block;
  margin: 0;
  color: rgba(230, 236, 250, 0.62);
  font-size: 11px;
  font-weight: 600;
  line-height: 1.35;
}

.bt-site-header__auth {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 10px;
  flex: 0 0 auto;
  min-width: 230px;
}

.bt-site-header__mobile-actions {
  display: none;
  align-items: center;
  gap: 10px;
  margin-left: auto;
}

.bt-site-header__mobile-auth {
  display: none;
  align-items: center;
  flex: 0 0 auto;
  min-width: 0;
  padding: 0;
  border: 0;
  border-radius: 0;
  background: transparent;
  box-shadow: none;
}

.bt-site-header__mobile-auth::before,
.bt-site-header__mobile-auth::after {
  content: none;
}

.bt-site-header__mobile-auth .auth-block,
.bt-site-header__mobile-auth .auth-guest,
.bt-site-header__mobile-auth .auth-user {
  min-width: 0;
  padding: 0;
  border: 0;
  border-radius: 0;
  background: transparent;
  box-shadow: none;
}

.bt-site-header__pro-mobile {
  min-height: 42px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0 16px;
  border: 1px solid rgba(239, 197, 109, 0.45);
  border-radius: 12px;
  background: rgba(239, 197, 109, 0.1);
  color: #efc56d;
  font-size: 13px;
  font-weight: 900;
  text-decoration: none;
}

.bt-site-header__menu-toggle {
  width: 44px;
  height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(255, 255, 255, 0.13);
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.05);
  color: #ffffff;
  cursor: pointer;
}

.bt-site-header__menu-toggle span,
.bt-site-header__menu-toggle span::before,
.bt-site-header__menu-toggle span::after {
  width: 18px;
  height: 2px;
  display: block;
  border-radius: 999px;
  background: currentColor;
  content: "";
  transition:
    transform 0.18s ease,
    opacity 0.18s ease;
}

.bt-site-header__menu-toggle span {
  position: relative;
}

.bt-site-header__menu-toggle span::before,
.bt-site-header__menu-toggle span::after {
  position: absolute;
  left: 0;
}

.bt-site-header__menu-toggle span::before {
  top: -6px;
}

.bt-site-header__menu-toggle span::after {
  top: 6px;
}

.bt-site-header__menu-toggle.is-active span {
  background: transparent;
}

.bt-site-header__menu-toggle.is-active span::before {
  transform: translateY(6px) rotate(45deg);
}

.bt-site-header__menu-toggle.is-active span::after {
  transform: translateY(-6px) rotate(-45deg);
}

.bt-site-mobile {
  width: min(100%, 1280px);
  margin: 10px auto 0;
  padding: 0;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 18px;
  background: rgba(8, 12, 19, 0.97);
  box-shadow: 0 22px 55px rgba(0, 0, 0, 0.34);
  backdrop-filter: blur(18px);
  overflow: hidden;
}

.bt-site-mobile[hidden] {
  display: none;
}

.page-indicator .bt-site-header .bt-academy-btn,
.page-indicator .bt-site-mobile .bt-academy-btn {
  isolation: auto !important;
  overflow: visible !important;
  box-shadow: none !important;
}

.page-indicator .bt-site-header .bt-academy-btn::after,
.page-indicator .bt-site-mobile .bt-academy-btn::after {
  content: none !important;
}

.page-indicator .bt-site-header .bt-site-header__tools-trigger.bt-academy-btn {
  border: 0 !important;
  background: transparent !important;
  color: rgba(238, 232, 224, 0.74) !important;
}

.page-indicator .bt-site-header .bt-site-header__tools-trigger.bt-academy-btn:hover,
.page-indicator .bt-site-header .bt-site-header__tools:focus-within .bt-site-header__tools-trigger.bt-academy-btn {
  background: transparent !important;
  color: #f7ca8f !important;
  text-shadow: 0 0 10px rgba(239, 197, 109, 0.24) !important;
  transform: none !important;
}

.page-indicator .bt-site-header .profile-trigger.bt-academy-btn,
.page-indicator .bt-site-mobile .profile-trigger.bt-academy-btn {
  border: 1px solid rgba(255, 255, 255, 0.32) !important;
  background: var(--bt-auth-bg, rgba(11, 16, 24, 0.95)) !important;
  color: var(--bt-auth-text, #f5f3ee) !important;
  box-shadow: none !important;
}

.page-indicator .bt-site-header .profile-trigger.bt-academy-btn:hover,
.page-indicator .bt-site-header .profile-trigger.bt-academy-btn:focus-visible,
.page-indicator .bt-site-mobile .profile-trigger.bt-academy-btn:hover,
.page-indicator .bt-site-mobile .profile-trigger.bt-academy-btn:focus-visible {
  border-color: var(--bt-auth-accent, #ecd06f) !important;
  background: rgba(0, 0, 0, 0.9) !important;
  transform: translateY(-1px) !important;
}

.bt-site-mobile__inner {
  padding: 14px;
  display: grid;
  gap: 10px;
}

.bt-site-mobile__link {
  min-height: 48px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 14px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.04);
  color: rgba(244, 247, 255, 0.92);
  font-size: 14px;
  font-weight: 850;
  text-decoration: none;
}

.bt-site-mobile__link--accent {
  border-color: rgba(239, 197, 109, 0.38);
  color: #efc56d;
}

.bt-site-mobile__group {
  display: grid;
  gap: 8px;
  padding-top: 4px;
}

.bt-site-mobile__group-title {
  padding: 0 4px;
  color: rgba(239, 197, 109, 0.88);
  font-size: 11px;
  font-weight: 900;
  letter-spacing: 0;
  text-transform: uppercase;
}

.bt-site-mobile__tool {
  min-height: 0;
  display: block;
  padding: 10px 12px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.035);
  color: inherit;
  text-decoration: none;
}

.bt-site-mobile__tool img {
  display: none;
  width: 42px;
  height: 42px;
  object-fit: contain;
}

.bt-site-mobile__tool strong {
  display: block;
  color: #ffffff;
  font-size: 13px;
  line-height: 1.2;
}

.bt-site-mobile__tool span {
  display: block;
  margin-top: 3px;
  color: rgba(230, 236, 250, 0.62);
  font-size: 11px;
  font-weight: 600;
  line-height: 1.25;
}

body.bt-mobile-menu-lock {
  overflow: hidden;
}

@media (max-width: 1180px) {
  .bt-site-header {
    gap: 12px;
    padding-left: 14px;
  }

  .bt-site-header__logo {
    height: 34px;
    max-width: 148px;
  }

  .bt-site-header__link,
  .bt-site-header__tools-trigger {
    min-width: 72px;
    padding: 0 8px;
  }

  .bt-site-header__auth {
    min-width: 210px;
  }
}

@media (max-width: 980px) {
  .bt-site-header {
    min-height: 68px;
    border-radius: 18px;
  }

  .bt-site-header__logo {
    height: 34px;
    max-width: 48vw;
  }

  .bt-site-header__nav,
  .bt-site-header__auth {
    display: none !important;
  }

  .bt-site-header__mobile-actions {
    display: inline-flex;
    gap: 8px;
  }

  .bt-site-header__mobile-auth {
    display: inline-flex;
  }

  .bt-site-header__mobile-auth .auth-guest,
  .bt-site-header__mobile-auth .auth-user {
    min-height: 40px;
    gap: 6px;
  }

  .bt-site-header__mobile-auth .control-button {
    min-width: 74px !important;
    min-height: 40px;
    padding: 0 10px;
    border-radius: 10px;
    font-size: 12px;
  }

  .bt-site-header__mobile-auth .control-button--primary {
    min-width: 106px !important;
  }

  .bt-site-header__mobile-auth .profile-trigger {
    min-height: 42px;
    max-width: 154px;
    padding: 4px 9px 4px 5px;
    border-radius: 12px;
  }

  .bt-site-header__mobile-auth .profile-avatar {
    width: 30px;
    height: 30px;
  }

  .bt-site-header__mobile-auth .profile-name {
    max-width: 80px;
  }
}

@media (max-width: 560px) {
  .bt-site-header {
    padding: 10px;
    border-radius: 16px;
  }

  .bt-site-header__logo {
    height: 30px;
    max-width: 44vw;
  }

  .bt-site-header__pro-mobile {
    min-height: 40px;
    padding: 0 12px;
    font-size: 12px;
  }

  .bt-site-header__mobile-actions {
    gap: 6px;
  }

  .bt-site-header__menu-toggle {
    width: 40px;
    height: 40px;
  }

  .bt-site-header__mobile-auth .control-button {
    min-width: 64px !important;
    min-height: 38px;
    padding: 0 8px;
    font-size: 11px;
  }

  .bt-site-header__mobile-auth .control-button--primary {
    min-width: 88px !important;
  }

  .bt-site-header__mobile-auth .profile-trigger {
    max-width: 126px;
    min-height: 40px;
  }

  .bt-site-header__mobile-auth .profile-name {
    max-width: 62px;
  }

  .bt-site-mobile {
    border-radius: 16px;
  }
}