/* Header and navigation */

.site-header {
  position: sticky;
  top: 0;
  z-index: 1200;
  border-bottom: 1px solid rgba(183, 203, 211, 0.72);
  background: rgba(255, 255, 255, 0.9);
  box-shadow: 0 8px 32px rgba(9, 36, 49, 0.06);
  backdrop-filter: blur(20px) saturate(1.4);
}

.header-shell {
  display: flex;
  align-items: center;
  width: min(calc(100% - 28px), var(--container-wide));
  min-height: var(--header-height);
  margin-inline: auto;
}

.logo {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  flex-shrink: 0;
  margin-right: clamp(16px, 2.4vw, 34px);
  color: var(--color-dark);
  text-decoration: none;
}

.logo:hover {
  color: var(--color-dark);
  text-decoration: none;
}

.logo img {
  width: 44px;
  height: 44px;
  display: block;
  object-fit: contain;
  filter: drop-shadow(0 5px 10px rgba(5, 98, 127, 0.16));
  transition: transform 0.2s var(--ease-out);
}

.logo:hover img {
  transform: rotate(-3deg) scale(1.04);
}

.logo-name {
  color: var(--color-dark);
  font-size: 0.9rem;
  font-weight: 850;
  letter-spacing: 0.055em;
  text-transform: uppercase;
  white-space: nowrap;
}

.site-nav {
  flex: 1;
  min-width: 0;
}

.mobile-nav-account,
.mobile-nav-language {
  display: none;
}

.menu,
.submenu {
  margin: 0;
  padding: 0;
  list-style: none;
}

.menu {
  display: flex;
  align-items: center;
  gap: 2px;
}

.menu > li {
  position: relative;
}

.menu a,
.nav-trigger {
  text-decoration: none;
}

.menu > li > a,
.menu > li > .nav-trigger {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 42px;
  padding: 0 11px;
  border: 0;
  border-radius: var(--radius-pill);
  background: transparent;
  color: var(--color-text);
  font: inherit;
  font-size: 0.88rem;
  font-weight: 720;
  line-height: 1;
  white-space: nowrap;
  cursor: pointer;
  box-shadow: none;
  transition: background 0.16s ease, color 0.16s ease;
}

.menu > li > a::before,
.menu > li > .nav-trigger::before {
  content: "";
  position: absolute;
  right: 13px;
  bottom: 4px;
  left: 13px;
  height: 2px;
  border-radius: var(--radius-pill);
  background: var(--color-blue);
  transform: scaleX(0);
  transition: transform 0.18s var(--ease-out);
}

.menu > li > a:hover,
.menu > li > .nav-trigger:hover,
.menu > li.open > .nav-trigger {
  transform: none;
  background: var(--color-blue-soft);
  color: var(--color-blue-dark);
  box-shadow: none;
  text-decoration: none;
}

.menu > li.is-active > a,
.menu > li.is-active > .nav-trigger {
  color: var(--color-blue-dark);
}

.menu > li.is-active > a::before,
.menu > li.is-active > .nav-trigger::before {
  transform: scaleX(1);
}

.nav-trigger::after {
  content: "";
  width: 7px;
  height: 7px;
  margin-top: -3px;
  border-right: 1.5px solid currentColor;
  border-bottom: 1.5px solid currentColor;
  transform: rotate(45deg);
  opacity: 0.68;
  transition: transform 0.18s var(--ease-out);
}

.has-submenu.open > .nav-trigger::after,
.has-submenu.open > .login-button::after {
  transform: rotate(225deg) translate(-2px, -2px);
}

.submenu {
  position: absolute;
  top: calc(100% + 10px);
  left: 0;
  min-width: 238px;
  display: none;
  gap: 2px;
  padding: 8px;
  border: 1px solid rgba(183, 203, 211, 0.85);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.98);
  box-shadow: var(--shadow-md);
  backdrop-filter: blur(18px);
}

.has-submenu.open > .submenu {
  display: grid;
  animation: menuIn 0.18s var(--ease-out);
}

@keyframes menuIn {
  from {
    transform: translateY(-6px);
    opacity: 0;
  }
}

.submenu a,
.submenu .nav-trigger,
.muted-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  min-height: 42px;
  padding: 9px 11px;
  border: 0;
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--color-text);
  font: inherit;
  font-size: 0.9rem;
  font-weight: 660;
  line-height: 1.25;
  text-align: left;
  box-shadow: none;
}

.submenu a:hover,
.submenu .nav-trigger:hover {
  transform: none;
  background: var(--color-blue-soft);
  color: var(--color-blue-dark);
  text-decoration: none;
  box-shadow: none;
}

.submenu .has-submenu {
  position: relative;
}

.submenu .submenu {
  top: -8px;
  left: calc(100% + 10px);
}

.submenu--right {
  right: 0;
  left: auto;
}

.muted-item {
  min-height: auto;
  margin-bottom: 3px;
  color: var(--color-muted);
  font-size: 0.7rem;
  font-weight: 820;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 9px;
  flex-shrink: 0;
  margin-left: 16px;
}

.header-social {
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.header-social a {
  display: grid;
  width: 36px;
  height: 36px;
  place-items: center;
  border: 1px solid var(--color-border);
  border-radius: 50%;
  background: var(--color-surface);
  color: var(--color-blue-dark);
  text-decoration: none;
  transition:
    transform 0.18s var(--ease-out),
    border-color 0.18s ease,
    background 0.18s ease,
    color 0.18s ease;
}

.header-social a:hover,
.header-social a:focus-visible {
  transform: translateY(-1px);
  border-color: var(--color-blue);
  background: var(--color-blue-soft);
  color: var(--color-blue-dark);
  text-decoration: none;
}

.language-switcher {
  display: inline-flex;
  align-items: center;
  padding: 3px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-pill);
  background: var(--color-surface-soft);
}

.language-switcher a {
  display: grid;
  min-width: 31px;
  height: 30px;
  place-items: center;
  border-radius: var(--radius-pill);
  color: var(--color-muted);
  font-size: 0.68rem;
  font-weight: 820;
  text-decoration: none;
}

.language-switcher a:hover {
  color: var(--color-blue-dark);
  text-decoration: none;
}

.language-switcher a[aria-current="true"] {
  background: var(--color-surface);
  color: var(--color-blue-dark);
  box-shadow: var(--shadow-xs);
}

#profile-widget {
  position: relative;
}

.login-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  min-height: 42px;
  max-width: 170px;
  padding: 0 16px;
  overflow: hidden;
  border: 1px solid var(--color-dark);
  border-radius: var(--radius-pill);
  background: var(--color-dark);
  color: var(--color-white);
  font: inherit;
  font-size: 0.86rem;
  font-weight: 760;
  line-height: 1;
  text-overflow: ellipsis;
  white-space: nowrap;
  cursor: pointer;
  box-shadow: 0 8px 20px rgba(9, 36, 49, 0.15);
  text-decoration: none;
}

.login-button:hover {
  transform: translateY(-1px);
  border-color: var(--color-blue-dark);
  background: var(--color-blue-dark);
  color: var(--color-white);
  text-decoration: none;
  box-shadow: 0 10px 24px rgba(5, 98, 127, 0.2);
}

.menu-toggle {
  display: none;
  width: 44px;
  min-width: 44px;
  height: 44px;
  min-height: 44px;
  padding: 0;
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-pill);
  background: var(--color-surface);
  box-shadow: none;
}

.menu-toggle:hover {
  transform: none;
  border-color: var(--color-blue);
  background: var(--color-blue-soft);
  box-shadow: none;
}

.menu-toggle span {
  position: absolute;
  display: block;
  width: 19px;
  height: 2px;
  border-radius: var(--radius-pill);
  background: var(--color-dark);
  transition: transform 0.2s var(--ease-out), opacity 0.16s ease;
}

.menu-toggle span:nth-child(1) {
  transform: translateY(-6px);
}

.menu-toggle span:nth-child(3) {
  transform: translateY(6px);
}

.menu-toggle[aria-expanded="true"] span:nth-child(1) {
  transform: rotate(45deg);
}

.menu-toggle[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
}

.menu-toggle[aria-expanded="true"] span:nth-child(3) {
  transform: rotate(-45deg);
}

.nav-backdrop {
  position: fixed;
  inset: var(--header-height) 0 0;
  z-index: 1100;
  display: none;
  background: rgba(4, 28, 39, 0.42);
  backdrop-filter: blur(4px);
}

@media (max-width: 1240px) {
  .logo-name {
    display: none;
  }

  .menu > li > a,
  .menu > li > .nav-trigger {
    padding-inline: 9px;
    font-size: 0.84rem;
  }
}

@media (max-width: 1040px) {
  .site-header {
    backdrop-filter: none;
    box-shadow: none;
  }

  .header-shell {
    width: min(calc(100% - 22px), var(--container-wide));
  }

  .logo {
    margin-right: auto;
  }

  .logo-name {
    display: inline;
  }

  .site-nav {
    position: fixed;
    top: var(--header-height);
    right: 0;
    bottom: 0;
    z-index: 1300;
    width: min(70vw, 480px);
    height: calc(100vh - var(--header-height));
    height: calc(100dvh - var(--header-height));
    overflow-x: hidden;
    overflow-y: auto;
    overscroll-behavior: contain;
    border-left: 1px solid var(--color-border);
    background: var(--color-surface);
    transform: translateX(105%);
    visibility: hidden;
    pointer-events: none;
    transition: transform 0.28s var(--ease-out), visibility 0s linear 0.28s;
  }

  .site-nav.open {
    transform: translateX(0);
    visibility: visible;
    pointer-events: auto;
    transition: transform 0.28s var(--ease-out), visibility 0s;
  }

  body.nav-open .nav-backdrop {
    display: block;
  }

  body.nav-open {
    overflow: hidden;
  }

  #profile-widget,
  .header-actions > .language-switcher {
    display: none;
  }

  .menu {
    width: 100%;
    flex-direction: column;
    align-items: stretch;
    gap: 4px;
    padding: 12px 16px 16px;
  }

  .menu > li > a,
  .menu > li > .nav-trigger {
    display: flex;
    justify-content: space-between;
    width: 100%;
    min-height: 48px;
    padding: 0 14px;
    font-size: 0.96rem;
  }

  .menu > li > a::before,
  .menu > li > .nav-trigger::before {
    top: 11px;
    right: auto;
    bottom: 11px;
    left: 0;
    width: 3px;
    height: auto;
    transform: scaleY(0);
  }

  .menu > li.is-active > a::before,
  .menu > li.is-active > .nav-trigger::before {
    transform: scaleY(1);
  }

  .submenu,
  .submenu .submenu {
    position: static;
    min-width: 0;
    margin: 4px 0 9px 12px;
    padding: 4px 0 4px 10px;
    border: 0;
    border-left: 2px solid var(--color-border);
    border-radius: 0;
    background: transparent;
    box-shadow: none;
    backdrop-filter: none;
  }

  .submenu a,
  .submenu .nav-trigger,
  .muted-item {
    min-height: 44px;
    padding-inline: 12px;
  }

  .mobile-nav-account {
    display: block;
    padding: 17px 16px 8px;
    border-top: 1px solid var(--color-border);
  }

  .mobile-nav-welcome {
    margin: 0 8px 18px;
    color: var(--color-dark);
    font-size: 0.96rem;
    font-weight: 760;
    overflow-wrap: anywhere;
  }

  .mobile-nav-group {
    margin-bottom: 17px;
  }

  .mobile-nav-section-title {
    margin: 0 8px 6px;
    color: var(--color-muted);
    font-size: 0.72rem;
    font-weight: 820;
    letter-spacing: 0.08em;
    text-transform: uppercase;
  }

  .mobile-nav-group a {
    display: flex;
    align-items: center;
    min-height: 44px;
    padding: 10px 14px;
    border-radius: var(--radius-sm);
    color: var(--color-text);
    font-size: 0.94rem;
    font-weight: 660;
    text-decoration: none;
  }

  .mobile-nav-group a:hover,
  .mobile-nav-group a:focus-visible {
    background: var(--color-blue-soft);
    color: var(--color-blue-dark);
    text-decoration: none;
  }

  .mobile-nav-language {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 17px 24px 24px;
    border-top: 1px solid var(--color-border);
    color: var(--color-muted);
    font-size: 0.82rem;
    font-weight: 700;
  }

  .mobile-nav-language .language-switcher {
    display: inline-flex;
  }

  .header-actions {
    margin-left: 10px;
  }

  .menu-toggle {
    position: relative;
    display: inline-flex;
    align-items: center;
    justify-content: center;
  }
}

@media (max-width: 680px) {
  .logo-name {
    display: none;
  }

  .header-actions > .language-switcher {
    display: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  .site-nav {
    transition-duration: 0.01ms;
  }
}