:root {
  --nav-surface: color-mix(in srgb, var(--color-surface) 85%, transparent);
  --nav-border: color-mix(in srgb, var(--color-outline) 55%, transparent);
  --nav-shadow: var(--shadow-soft);
  --nav-pill-surface: color-mix(in srgb, var(--color-surface) 96%, transparent);
  --nav-pill-border: color-mix(in srgb, var(--color-outline) 45%, transparent);
  --nav-link-color: var(--color-text);
  --nav-link-accent: var(--theme-accent);
  --nav-link-accent-dark: var(--theme-accent-dark);
  --nav-cta-outline-bg: color-mix(in srgb, var(--color-surface) 92%, transparent);
  --nav-cta-outline-hover: color-mix(in srgb, var(--theme-accent) 15%, var(--color-surface));
  --nav-cta-outline-border: color-mix(in srgb, var(--theme-accent) 22%, var(--color-outline));
  --nav-cta-focus-ring: var(--focus-ring-color);
  --nav-cta-primary-text: #fff;
  --nav-menu-surface: color-mix(in srgb, var(--color-surface) 96%, transparent);
  --nav-control-surface: color-mix(in srgb, var(--color-surface) 92%, transparent);
  --nav-control-strong: color-mix(in srgb, var(--color-surface) 88%, transparent);
}

body[data-theme="light"] {
  --nav-surface: color-mix(in srgb, var(--surface-card-light) 80%, var(--surface-page-light));
  --nav-border: color-mix(in srgb, var(--color-border-light) 80%, #ffffff);
  --nav-pill-surface: color-mix(in srgb, var(--surface-muted-light) 55%, #ffffff);
  --nav-pill-border: color-mix(in srgb, var(--color-border-light) 75%, #ffffff);
  --nav-cta-outline-bg: color-mix(in srgb, var(--surface-card-light) 70%, var(--surface-muted-light));
  --nav-cta-outline-hover: color-mix(in srgb, var(--theme-accent) 18%, var(--surface-card-light));
  --nav-cta-outline-border: color-mix(in srgb, var(--theme-accent) 22%, var(--color-border-light));
  --nav-menu-surface: color-mix(in srgb, var(--surface-card-light) 85%, #ffffff);
  --nav-control-surface: color-mix(in srgb, var(--surface-card-light) 75%, var(--surface-muted-light));
  --nav-control-strong: color-mix(in srgb, var(--surface-muted-light) 65%, #ffffff);
  --nav-link-color: var(--color-text-light);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: var(--nav-surface);
  backdrop-filter: saturate(140%) blur(16px);
  border-bottom: 1px solid var(--nav-border);
  padding: 0 clamp(1rem, 4vw, 2.5rem);
  transition: box-shadow 220ms ease;
}

.site-header.scrolled {
  box-shadow: var(--nav-shadow);
}

.site-header__container {
  width: 100%;
  max-width: min(1280px, calc(100vw - clamp(1.5rem, 3vw, 3rem)));
  margin: 0 auto;
}

.nav__inner {
  --nav-cluster-gap: clamp(0.55rem, 1vw, 1.3rem);
  width: 100%;
  display: flex;
  align-items: center;
  gap: var(--nav-cluster-gap);
  padding: clamp(0.75rem, 1.2vw, 1rem) 0;
}

.nav__brand {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  padding: 0;
  flex-shrink: 0;
  text-decoration: none;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.12rem;
  letter-spacing: -0.01em;
  text-transform: none;
  color: var(--nav-link-accent);
  transition: color var(--transition-base);
}

.nav__brand:hover,
.nav__brand:focus-visible {
  color: var(--nav-link-accent-dark);
}

.nav__brand:focus-visible {
  outline: 2px solid var(--focus-ring-color);
  outline-offset: 2px;
}

.nav__brand-mark {
  display: block;
  width: 28px;
  height: 28px;
  border-radius: 8px;
}

.nav__brand-wordmark {
  line-height: 1;
}

.nav__links {
  --nav-links-gap: clamp(0.3rem, 0.75vw, 0.55rem);
  --nav-links-pad-y: clamp(0.15rem, 0.5vw, 0.35rem);
  --nav-links-pad-x: clamp(0.8rem, 1.4vw, 1.35rem);
  position: relative;
  display: flex;
  flex: 1 1 auto;
  min-width: 0;
  max-width: 100%;
  margin-inline: clamp(0.25rem, 0.7vw, 0.9rem);
  gap: var(--nav-links-gap);
  align-items: center;
  justify-content: center;
  flex-wrap: nowrap;
  padding: var(--nav-links-pad-y) var(--nav-links-pad-x);
  border-radius: 999px;
  background: var(--nav-pill-surface);
  border: 1px solid var(--nav-pill-border);
  overflow: visible;
}

@media (max-width: 1240px) {
  .nav__links {
    --nav-links-gap: clamp(0.24rem, 0.6vw, 0.48rem);
    --nav-links-pad-x: clamp(0.7rem, 1.2vw, 1.05rem);
    justify-content: flex-start;
    margin-inline: clamp(0.35rem, 0.9vw, 1rem);
  }
}

.nav__link {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  white-space: nowrap;
  padding: clamp(0.3rem, 0.65vw, 0.45rem) clamp(0.5rem, 0.85vw, 0.85rem);
  border-radius: 999px;
  font-size: clamp(0.85rem, 0.88rem + 0.1vw, 0.95rem);
  text-decoration: none;
  color: var(--nav-link-color);
  font-weight: 600;
  letter-spacing: 0.01em;
  transition: color var(--transition-base), background-color var(--transition-base);
}

.nav__link:hover,
.nav__link:focus-visible {
  color: var(--nav-link-accent-dark);
  background: var(--theme-accent-soft);
}

.nav__label {
  display: inline-flex;
  align-items: center;
  gap: 0.15rem;
}

.nav__icon {
  color: currentColor;
  opacity: 0.94;
}

.nav__link.is-active,
.nav__link[aria-current="page"] {
  color: var(--nav-link-accent-dark);
  background: var(--theme-accent-soft-strong);
}

.nav__link:focus-visible {
  outline: 2px solid transparent;
  box-shadow: 0 0 0 3px var(--focus-ring-color);
}

.nav__link:focus {
  outline: none;
}

.nav__dropdown {
  position: relative;
  display: flex;
  align-items: center;
  flex-shrink: 0;
  isolation: isolate;
}

.nav__link--dropdown {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  cursor: pointer;
  border: none;
  background: none;
  font: inherit;
  color: inherit;
}

.nav__link--dropdown.is-open {
  color: var(--nav-link-accent-dark);
  background: var(--theme-accent-soft);
}

.nav__link--dropdown .nav__dropdown-icon {
  width: 10px;
  height: 10px;
  border-right: 2px solid currentColor;
  border-bottom: 2px solid currentColor;
  transform: rotate(45deg) translateY(-1px);
  transition: transform 160ms ease;
}

.nav__dropdown.is-open .nav__dropdown-icon {
  transform: rotate(225deg) translateY(1px);
}

.nav__dropdown-menu {
  position: absolute;
  top: calc(100% + 12px);
  right: 0;
  min-width: 220px;
  background: linear-gradient(180deg, color-mix(in srgb, var(--nav-menu-surface) 92%, #fff) 0%, var(--nav-menu-surface) 100%);
  backdrop-filter: saturate(140%) blur(14px);
  border-radius: 14px;
  border: 1px solid color-mix(in srgb, var(--nav-border) 80%, transparent);
  box-shadow: 0 12px 35px rgba(32, 24, 73, 0.12), 0 6px 18px rgba(19, 22, 34, 0.06);
  padding: 8px;
  display: none;
  z-index: 70;
  transform-origin: top right;
}

.nav__dropdown.is-open .nav__dropdown-menu {
  display: block;
  animation: dropdownReveal 0.2s ease-out;
}

.nav__dropdown-link {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  width: 100%;
  padding: 10px 12px;
  color: var(--nav-link-color);
  text-decoration: none;
  font-size: 0.95rem;
  border-radius: 12px;
  transition: color var(--transition-base), background-color var(--transition-base), transform var(--transition-base);
  position: relative;
}

.nav__dropdown-link:hover,
.nav__dropdown-link:focus-visible {
  background: var(--theme-accent-soft);
  color: var(--nav-link-accent-dark);
  outline: 2px solid transparent;
  box-shadow: 0 0 0 3px var(--focus-ring-color);
  transform: translateY(-1px);
}

.nav__dropdown-link.is-active {
  font-weight: 600;
  color: var(--nav-link-accent-dark);
  background: var(--theme-accent-soft-strong);
}

.nav__dropdown-link:focus-visible {
  outline: 2px solid color-mix(in srgb, var(--theme-accent) 45%, #fff);
  outline-offset: 2px;
}

.nav__dropdown-link:focus {
  outline: none;
}

@keyframes dropdownReveal {
  from {
    opacity: 0;
    transform: translateY(4px) scale(0.98);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

.nav__indicator {
  position: absolute;
  left: 0;
  bottom: 2px;
  height: 2px;
  background: linear-gradient(90deg, var(--nav-link-accent) 0%, color-mix(in srgb, var(--nav-link-accent) 70%, #fff) 100%);
  border-radius: 999px;
  transition: transform .3s cubic-bezier(.22,1,.36,1), width .3s cubic-bezier(.22,1,.36,1), opacity .2s ease;
  opacity: 0;
  pointer-events: none;
  will-change: transform, width;
}

.nav__actions {
  display: flex;
  gap: 6px;
  align-items: center;
  flex-shrink: 0;
  flex-wrap: nowrap;
  min-width: 0;
}

.nav__logout-form {
  margin: 0;
}

@supports not (gap: 1rem) {
  .nav__inner > * + * {
    margin-left: var(--nav-cluster-gap, 0.75rem);
  }

  .nav__links > :not(.nav__indicator) + :not(.nav__indicator) {
    margin-left: var(--nav-links-gap, 0.6rem);
  }

  .nav__actions {
    gap: 0;
  }

  .nav__actions > * + * {
    margin-left: 6px;
  }
}

.nav__cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.45rem;
  text-decoration: none;
  font-size: clamp(0.78rem, calc(0.8rem + 0.08vw), 0.88rem);
  font-weight: 600;
  border-radius: 999px;
  padding: clamp(0.3rem, calc(0.4rem + 0.12vw), 0.5rem) clamp(0.6rem, calc(0.72rem + 0.15vw), 0.9rem);
  border: 1px solid transparent;
  transition: color var(--transition-base), background-color var(--transition-base), border-color var(--transition-base);
}

.nav__cta:focus {
  outline: none;
}

.nav__cta:focus-visible {
  outline: 2px solid var(--nav-cta-focus-ring);
  outline-offset: 2px;
}

.nav__cta--outline {
  background: var(--nav-cta-outline-bg);
  border-color: var(--nav-border);
  color: var(--nav-link-color);
}

.nav__cta--outline:hover,
.nav__cta--outline:focus-visible {
  color: var(--nav-link-accent-dark);
  background: var(--nav-cta-outline-hover);
  border-color: var(--nav-cta-outline-border);
}

.nav__cta--primary,
.nav__cta--active,
.nav__cta[aria-current="page"] {
  background: var(--nav-link-accent);
  border-color: var(--nav-link-accent);
  color: var(--nav-cta-primary-text);
}

.nav__cta--primary:hover,
.nav__cta--primary:focus-visible,
.nav__cta--active:hover,
.nav__cta--active:focus-visible,
.nav__cta[aria-current="page"]:hover,
.nav__cta[aria-current="page"]:focus-visible {
  background: var(--nav-link-accent-dark);
  border-color: var(--nav-link-accent-dark);
  color: var(--nav-cta-primary-text);
}

.language-switcher {
  position: relative;
  display: inline-flex;
  flex-direction: column;
  align-items: stretch;
  margin-left: 4px;
}

.language-switcher__current {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 4px 10px;
  height: 30px;
  border-radius: 999px;
  border: 1px solid var(--nav-border);
  background: var(--nav-control-surface);
  cursor: pointer;
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  transition: color var(--transition-base), background-color var(--transition-base), border-color var(--transition-base);
}

.language-switcher__current:hover {
  background: var(--theme-accent-soft);
  color: var(--nav-link-accent-dark);
  border-color: var(--nav-cta-outline-border);
}

.language-switcher__current:focus {
  outline: none;
}

.language-switcher__current:focus:not(:focus-visible) {
  outline: none;
}

.language-switcher__current:focus-visible {
  outline: 2px solid var(--nav-cta-focus-ring);
  outline-offset: 2px;
  background: var(--theme-accent-soft);
  border-color: var(--nav-cta-outline-border);
  color: var(--nav-link-accent-dark);
}

.language-switcher.is-open .language-switcher__current {
  background: var(--theme-accent-soft-strong);
  border-color: var(--nav-cta-outline-border);
  color: var(--nav-link-accent-dark);
}

.language-switcher__chevron {
  width: 10px;
  height: 6px;
  position: relative;
  display: inline-block;
  margin-left: 2px;
}

.language-switcher__chevron::before {
  content: "";
  position: absolute;
  inset: 0;
  border-left: 2px solid currentColor;
  border-bottom: 2px solid currentColor;
  transform-origin: center;
  transform: rotate(-45deg) translateY(-1px);
  transition: transform 160ms ease;
}

.language-switcher.is-open .language-switcher__chevron::before {
  transform: rotate(135deg) translateY(-1px);
}

.language-switcher__menu {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 10px;
  border-radius: 14px;
  border: 1px solid var(--nav-border);
  background: var(--nav-menu-surface);
  backdrop-filter: saturate(140%) blur(14px);
  box-shadow: var(--shadow-soft);
  margin-top: 12px;
  min-width: 160px;
  z-index: 80;
}

.language-switcher__form {
  margin: 0;
}

.language-switcher__menu .language-switcher__btn {
  width: 100%;
  justify-content: flex-start;
}

.language-switcher__btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 5px 11px;
  height: 30px;
  border-radius: 999px;
  border: 1px solid var(--nav-border);
  background: var(--nav-control-surface);
  cursor: pointer;
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  transition: color var(--transition-base), background-color var(--transition-base), border-color var(--transition-base);
}

.language-switcher__btn:hover {
  background: var(--theme-accent-soft);
  color: var(--nav-link-accent-dark);
  border-color: var(--nav-cta-outline-border);
}

.language-switcher__btn:focus {
  outline: none;
}

.language-switcher__btn:focus:not(:focus-visible) {
  outline: none;
}

.language-switcher__btn:focus-visible {
  outline: 2px solid var(--nav-cta-focus-ring);
  outline-offset: 2px;
  background: var(--theme-accent-soft);
  border-color: var(--nav-cta-outline-border);
  color: var(--nav-link-accent-dark);
}

.language-switcher__btn.is-active {
  background: var(--theme-accent-soft-strong);
  border-color: var(--nav-cta-outline-border);
  color: var(--nav-link-accent-dark);
}

.language-switcher__flag {
  width: 18px;
  height: 12px;
  border-radius: 2px;
  box-shadow: 0 0 0 1px color-mix(in srgb, var(--color-text) 28%, transparent);
}

.language-switcher__code {
  line-height: 1;
}

.theme-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  padding: 0;
  border-radius: 999px;
  border: 1px solid var(--nav-border);
  background: var(--nav-control-surface);
  color: var(--nav-link-color);
  cursor: pointer;
  transition: color var(--transition-base), background-color var(--transition-base), border-color var(--transition-base);
}

.theme-toggle:focus {
  outline: none;
}

.theme-toggle:focus-visible {
  outline: 2px solid var(--nav-cta-focus-ring);
  outline-offset: 2px;
}

.theme-toggle:hover,
.theme-toggle[aria-pressed="true"] {
  background: var(--theme-accent-soft);
  border-color: var(--nav-cta-outline-border);
  color: var(--nav-link-accent-dark);
}

.theme-toggle[aria-pressed="true"] {
  background: var(--theme-accent-soft-strong);
}

.theme-toggle__icon {
  width: 1.1rem;
  height: 1.1rem;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
}

.theme-toggle__icon::before {
  content: '☀︎';
}

.theme-toggle[data-theme-state="dark"] .theme-toggle__icon::before {
  content: '☾';
}

.theme-toggle--drawer {
  width: 44px;
  height: 44px;
}

.drawer__utilities .theme-toggle {
  width: 44px;
  height: 44px;
  align-self: center;
}


.nav__toggle { display: none; width: 42px; height: 36px; align-items: center; justify-content: center; gap: 4px; border: 1px solid var(--nav-border); background: var(--nav-cta-outline-bg); border-radius: 8px; cursor: pointer; transition: background-color var(--transition-base), border-color var(--transition-base); margin-left: auto; }
.nav__toggle:focus { outline: none; }
.nav__toggle:focus:not(:focus-visible) { outline: none; }
.nav__toggle:focus-visible { outline: 2px solid var(--nav-cta-focus-ring); outline-offset: 2px; }

@media (max-width: 1024px) {
  body.js .nav__links { display: none; }
  body.js .nav__actions { display: none; }
  body.js .nav__toggle { display: inline-flex; }
}

.drawer-open {
  overflow: hidden;
  padding-right: var(--scrollbar-compensation, 0px);
  touch-action: none;
}
.nav__toggle span { display:block; width: 20px; height: 2px; background: var(--nav-link-color); border-radius: 2px; transition: transform .2s ease, opacity .2s ease; }
.nav__toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.nav__toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav__toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

@media (min-width: 1025px) {
  .nav__links { display: flex; }
  .nav__actions { display: flex; gap: 6px; align-items: center; }
  .nav__toggle { display: none; }
  body.js .nav__links { display: flex; }
  body.js .nav__actions { display: flex; gap: 6px; align-items: center; }
  body.js .nav__toggle { display: none; }
}

@media (min-width: 720px) and (max-width: 1024px) {
  .nav-drawer {
    inset: 64px clamp(1rem, 4vw, 2.75rem) auto clamp(1rem, 4vw, 2.75rem);
    width: auto;
    max-width: min(520px, calc(100% - 2 * clamp(1rem, 4vw, 2.75rem)));
    margin-inline: auto;
    border-radius: 16px;
  }
}

/* Drawer */
.nav-drawer { position: fixed; inset: 56px 0 auto 0; background: color-mix(in srgb, var(--color-surface) 92%, transparent); backdrop-filter: blur(10px); transform: translateY(-8px); opacity: 0; pointer-events: none; transition: transform .25s ease, opacity .25s ease; border-bottom: 1px solid var(--nav-border); padding: 8px 12px; display: grid; gap: 4px; z-index: 60; max-height: calc(100vh - 56px); overflow-y: auto; overscroll-behavior: contain; -webkit-overflow-scrolling: touch; }
.nav-drawer.open { transform: translateY(0); opacity: 1; pointer-events: auto; }
.nav-drawer__overlay { position: fixed; inset: 0; background: var(--scrim-color); opacity: 0; pointer-events: none; transition: opacity .25s ease; z-index: 40; }
.nav-drawer__overlay.is-visible { opacity: 1; pointer-events: auto; }
.drawer__link { display: inline-flex; align-items: center; gap: 0.55rem; padding: 10px 12px; border-radius: 10px; color: var(--nav-link-color); text-decoration: none; transition: color var(--transition-base), background-color var(--transition-base); word-break: break-word; white-space: normal; }
.drawer__link[aria-current="page"] { background: var(--theme-accent-soft); font-weight: 600; color: var(--nav-link-accent-dark); }
.drawer__link:hover { background: var(--theme-accent-soft); color: var(--nav-link-accent-dark); }
.drawer__link:focus { outline: none; }
.drawer__link:focus:not(:focus-visible) { outline: none; }
.drawer__link:focus-visible { outline: 2px solid var(--nav-cta-focus-ring); outline-offset: 2px; background: var(--theme-accent-soft); color: var(--nav-link-accent-dark); }
.drawer__logout-form { margin: 0; width: 100%; }
.drawer__logout-button { background: none; border: none; width: 100%; text-align: left; cursor: pointer; }
.nav-drawer.open .drawer__link {
  animation: drawerLinkReveal 0.4s cubic-bezier(.22,1,.36,1);
  animation-fill-mode: both;
}
.nav-drawer.open .drawer__link:nth-of-type(2) { animation-delay: 70ms; }
.nav-drawer.open .drawer__link:nth-of-type(3) { animation-delay: 140ms; }
.nav-drawer.open .drawer__link:nth-of-type(4) { animation-delay: 210ms; }
.nav-drawer.open .drawer__link:nth-of-type(5) { animation-delay: 280ms; }
.nav-drawer.open .drawer__link:nth-of-type(6) { animation-delay: 350ms; }
.drawer__sep { height: 1px; background: var(--nav-border); margin: 6px 0; }

.drawer__utilities { display: flex; flex-direction: column; gap: 12px; padding: 10px 0 16px; }
.drawer__utilities > * { width: 100%; }
.drawer__languages { display: flex; justify-content: center; width: 100%; }
.language-switcher--drawer { align-items: stretch; width: 100%; margin-left: 0; }
.language-switcher--drawer .language-switcher__current {
  width: 100%;
  justify-content: space-between;
  height: 36px;
  padding: 6px 12px;
}
.language-switcher--drawer .language-switcher__menu { position: static; margin-top: 10px; box-shadow: none; backdrop-filter: none; background: var(--nav-control-surface); }
.language-switcher--drawer .language-switcher__btn {
  width: 100%;
  height: 36px;
  padding: 6px 12px;
}
.language-switcher:not(.language-switcher--drawer) .language-switcher__menu { position: absolute; right: 0; top: calc(100% + 12px); }
.language-switcher.language-switcher--drawer .language-switcher__menu { min-width: unset; }
.js .language-switcher__menu { display: none; }
.js .language-switcher.is-open .language-switcher__menu { display: flex; animation: dropdownReveal 0.2s ease-out; }

@keyframes drawerLinkReveal {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (prefers-reduced-motion: reduce) {
  .nav__link,
  .nav__cta,
  .language-switcher__current,
  .language-switcher__btn,
  .drawer__link,
  .nav__toggle {
    transition: none;
  }

  .nav-drawer.open .drawer__link {
    animation: none;
  }

  .nav__dropdown.is-open .nav__dropdown-menu {
    animation: none;
  }
}