.site-header {
  position: fixed;
  top: 0;
  right: 0;
  left: 0;
  z-index: 1000;

  background: rgba(10, 14, 22, 0.92);
  border-bottom: 1px solid rgba(255, 255, 255, 0.07);

  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
}

.site-header__container {
  width: 100%;
  max-width: 1240px;
  min-height: 70px;
  margin: 0 auto;
  padding: 10px 20px;

  display: flex;
  align-items: center;
  gap: 28px;
}

/* Logo */

.site-header__logo,
.mobile-menu__logo {
  flex: 0 0 auto;

  display: inline-flex;
  align-items: center;

  color: #fff;
  text-decoration: none;
}

.site-header__logo img,
.mobile-menu__logo img {
  display: block;

  width: auto;
  max-width: 158px;
  height: auto;
  max-height: 42px;

  object-fit: contain;
}

.site-header__logo-fallback {
  color: #fff;
  font-size: 22px;
  font-weight: 900;
  line-height: 1;
  letter-spacing: -0.04em;
  text-transform: uppercase;
}

/* Desktop navigation */

.site-header__nav {
  flex: 1;

  display: flex;
  justify-content: center;
}

.site-header__menu {
  margin: 0;
  padding: 0;

  display: flex;
  align-items: center;
  gap: 28px;

  list-style: none;
}

.site-header__menu li {
  margin: 0;
}

.site-header__menu a {
  position: relative;

  min-height: 40px;

  display: inline-flex;
  align-items: center;

  color: rgba(255, 255, 255, 0.66);
  font-size: 14px;
  font-weight: 700;
  line-height: 1.2;
  text-decoration: none;

  transition: color 0.2s ease;
}

.site-header__menu a:hover,
.site-header__menu .current-menu-item > a {
  color: #fff;
}

.site-header__menu a:hover::after,
.site-header__menu .current-menu-item > a::after {
  opacity: 1;
  transform: scaleX(1);
}

/* Actions */

.site-header__actions {
  flex: 0 0 auto;

  display: flex;
  align-items: center;
  gap: 8px;
}

.site-header__button {
  min-height: 40px;
  padding: 10px 18px;

  display: inline-flex;
  align-items: center;
  justify-content: center;

  border: 1px solid transparent;
  border-radius: 9px;

  font-size: 13px;
  font-weight: 800;
  line-height: 1;
  text-align: center;
  text-decoration: none;
  white-space: nowrap;

  transition:
    background 0.2s ease,
    border-color 0.2s ease,
    transform 0.2s ease;
}

.site-header__button:hover {
  transform: translateY(-1px);
}

.site-header__button--login {
  color: #fff;

  background: transparent;
  border-color: rgba(255, 255, 255, 0.16);
}

.site-header__button--login:hover {
  background: rgba(255, 255, 255, 0.06);
  border-color: rgba(255, 255, 255, 0.24);
}

.site-header__button--registration {
  color: #fff;

  background: #ff315a;
  border-color: #ff315a;
}

.site-header__button--registration:hover {
  background: #e92a50;
  border-color: #e92a50;
}

/* Burger */

.site-header__burger {
  flex: 0 0 40px;

  width: 40px;
  height: 40px;
  padding: 0;

  display: none;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 5px;

  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 9px;

  cursor: pointer;

  transition:
    background 0.2s ease,
    border-color 0.2s ease;
}

.site-header__burger:hover {
  background: rgba(255, 255, 255, 0.06);
  border-color: rgba(255, 255, 255, 0.22);
}

.site-header__burger span {
  width: 18px;
  height: 2px;

  display: block;

  background: #fff;
  border-radius: 999px;
}

/* Mobile menu */

.mobile-menu {
  position: fixed;
  inset: 0;
  z-index: 1100;
  overflow-y: auto;

  visibility: hidden;
  pointer-events: none;
}

.mobile-menu__backdrop {
  position: absolute;
  inset: 0;

  background: rgba(5, 8, 13, 0.72);

  opacity: 0;

  transition: opacity 0.25s ease;
}

.mobile-menu__panel {
  position: absolute;
  top: 0;
  right: 0;

  width: min(360px, 92vw);
  height: 100%;
  padding: 18px;

  display: flex;
  flex-direction: column;

  background: #0f141f;
  border-left: 1px solid rgba(255, 255, 255, 0.08);

  box-shadow: -18px 0 50px rgba(0, 0, 0, 0.34);

  transform: translateX(100%);

  transition: transform 0.28s ease;
}

body.menu-open .mobile-menu {
  visibility: visible;
  pointer-events: auto;
}

body.menu-open .mobile-menu__backdrop {
  opacity: 1;
}

body.menu-open .mobile-menu__panel {
  transform: translateX(0);
}

/* Mobile menu header */

.mobile-menu__header {
  min-height: 48px;
  padding-bottom: 16px;

  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;

  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.mobile-menu__logo img {
  max-width: 138px;
  max-height: 38px;
}

.mobile-menu__close {
  flex: 0 0 40px;

  position: relative;

  width: 40px;
  height: 40px;
  padding: 0;

  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 9px;

  cursor: pointer;
}

.mobile-menu__close span {
  position: absolute;
  top: 50%;
  left: 50%;

  width: 18px;
  height: 2px;

  display: block;

  background: #fff;
  border-radius: 999px;
}

.mobile-menu__close span:first-child {
  transform: translate(-50%, -50%) rotate(45deg);
}

.mobile-menu__close span:last-child {
  transform: translate(-50%, -50%) rotate(-45deg);
}

/* Mobile navigation */

.mobile-menu__nav {
  margin-top: 22px;
}

.mobile-menu__list {
  margin: 0;
  padding: 0;

  display: grid;
  gap: 4px;

  list-style: none;
}

.mobile-menu__list li {
  margin: 0;
}

.mobile-menu__list a {
  min-height: 46px;
  padding: 11px 12px;

  display: flex;
  align-items: center;

  color: rgba(255, 255, 255, 0.76);
  font-size: 16px;
  font-weight: 750;
  line-height: 1.2;
  text-decoration: none;

  border-radius: 9px;

  transition:
    color 0.2s ease,
    background 0.2s ease;
}

.mobile-menu__list a:hover,
.mobile-menu__list .current-menu-item > a {
  color: #fff;
  background: rgba(255, 255, 255, 0.06);
}

.mobile-menu__actions {
  margin-top: auto;
  padding-top: 24px;

  display: grid;
  gap: 8px;
}

.mobile-menu__actions .site-header__button {
  width: 100%;
  min-height: 46px;
}

/* Tablet */

@media (max-width: 960px) {
  .site-header__container {
    min-height: 66px;
    gap: 14px;
  }

  .site-header__nav {
    display: none;
  }

  .site-header__actions {
    margin-left: auto;
  }

  .site-header__burger {
    display: flex;
  }
}

/* Mobile */

@media (max-width: 640px) {
  .site-header__container {
    min-height: 60px;
    padding: 8px 12px;
    gap: 7px;
  }

  .site-header__logo {
    max-width: 92px;
  }

  .site-header__logo img {
    max-width: 92px;
    max-height: 30px;
  }

  .site-header__logo-fallback {
    font-size: 16px;
  }

  .site-header__actions {
    gap: 5px;
  }

  .site-header__button {
    min-height: 34px;
    padding: 8px 9px;

    border-radius: 8px;

    font-size: 10px;
  }

  .site-header__burger {
    flex-basis: 36px;

    width: 36px;
    height: 36px;

    border-radius: 8px;
  }

  .mobile-menu__panel {
    width: min(340px, 94vw);
    padding: 14px;
  }

  .mobile-menu__logo img {
    max-width: 120px;
    max-height: 34px;
  }
}

@media (max-width: 390px) {
  .site-header__logo {
    max-width: 72px;
  }

  .site-header__logo img {
    max-width: 72px;
  }

  .site-header__button {
    padding-right: 7px;
    padding-left: 7px;

    font-size: 9px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .site-header__menu a::after,
  .site-header__button,
  .site-header__burger,
  .mobile-menu__backdrop,
  .mobile-menu__panel {
    transition: none;
  }
}