/* Site navbar — minimal product design
   Desktop: brand · centered links · utilities
   Mobile: frosted bar + off-canvas drawer (portal on body)
*/

:root {
  --nav-h: 3.5rem;
  --nav-drawer-w: min(20rem, 88vw);
  --nav-ease: cubic-bezier(0.22, 1, 0.36, 1);
  --nav-z: 1040;
  --nav-drawer-z: 3000;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: var(--nav-z);
  min-height: var(--nav-h);
  height: auto;
  overflow: visible;
  border-bottom: 1px solid transparent;
  background: color-mix(in srgb, var(--bg, #0b0d12) 72%, transparent);
  backdrop-filter: saturate(160%) blur(16px);
  -webkit-backdrop-filter: saturate(160%) blur(16px);
  transition: border-color 0.2s, box-shadow 0.2s, background 0.2s;
}

.site-header.is-scrolled {
  border-bottom-color: var(--border-soft, #1e2430);
  box-shadow: 0 8px 28px -16px rgba(0, 0, 0, 0.55);
  background: color-mix(in srgb, var(--bg, #0b0d12) 88%, transparent);
}

html[data-theme="light"] .site-header {
  background: color-mix(in srgb, var(--bg, #f6f7f9) 78%, transparent);
}
html[data-theme="light"] .site-header.is-scrolled {
  box-shadow: 0 6px 22px -12px rgba(26, 29, 38, 0.16);
  border-bottom-color: var(--border, #e2e5eb);
}

.site-nav-bar {
  height: var(--nav-h);
  display: flex;
  align-items: center;
  gap: 0.75rem;
  max-width: 1140px;
  margin-inline: auto;
  padding-inline: clamp(0.85rem, 3vw, 1.25rem);
}

.site-nav-bar .brand {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  text-decoration: none !important;
  color: var(--text, #e8ecf4);
  flex-shrink: 0;
  min-width: 0;
}
.site-nav-bar .brand:hover { color: var(--accent, #e3b341); }
.site-nav-bar .ltr-signature {
  font-family: "Space Grotesk", system-ui, sans-serif;
  font-weight: 600;
  font-size: 1rem;
  letter-spacing: -0.02em;
}

.site-nav-primary {
  display: none;
  flex: 1 1 auto;
  justify-content: center;
  align-items: center;
  gap: 0.15rem;
  list-style: none;
  margin: 0;
  padding: 0;
  min-width: 0;
}

.site-nav-link {
  display: inline-flex;
  align-items: center;
  padding: 0.4rem 0.85rem;
  border-radius: 999px;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-muted, #8b93a7) !important;
  text-decoration: none !important;
  white-space: nowrap;
  transition: color 0.15s, background 0.15s;
}
.site-nav-link:hover {
  color: var(--text, #e8ecf4) !important;
  background: var(--surface-2, rgba(255,255,255,0.04));
}
.site-nav-link.active {
  color: var(--accent, #e3b341) !important;
  background: var(--accent-soft, color-mix(in srgb, var(--accent, #e3b341) 14%, transparent));
}

.site-nav-utils {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  margin-inline-start: auto;
  flex-shrink: 0;
}

.btn-nav-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.3rem;
  min-width: 2.4rem;
  height: 2.4rem;
  padding: 0 0.55rem;
  border-radius: 10px;
  border: 1px solid transparent;
  background: transparent;
  color: var(--text-muted, #8b93a7);
  font-size: 1.05rem;
  line-height: 1;
  cursor: pointer;
  transition: background 0.15s, color 0.15s, border-color 0.15s;
}
.btn-nav-icon:hover,
.btn-nav-icon:focus-visible {
  background: var(--surface-2, rgba(255,255,255,0.05));
  color: var(--text, #e8ecf4);
  border-color: var(--border-soft, #1e2430);
  outline: none;
}
.btn-nav-icon .nav-icon-label {
  font-size: 0.8rem;
  font-weight: 500;
}

.nav-menu-btn { position: relative; z-index: 1; }
.nav-menu-btn .nav-burger {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 18px;
  height: 14px;
}
.nav-menu-btn .nav-burger span {
  display: block;
  height: 1.5px;
  width: 100%;
  border-radius: 2px;
  background: currentColor;
  transition: transform 0.22s var(--nav-ease), opacity 0.18s;
  transform-origin: center;
}
.site-header.is-drawer-open .nav-menu-btn .nav-burger span:nth-child(1) {
  transform: translateY(6.5px) rotate(45deg);
}
.site-header.is-drawer-open .nav-menu-btn .nav-burger span:nth-child(2) { opacity: 0; }
.site-header.is-drawer-open .nav-menu-btn .nav-burger span:nth-child(3) {
  transform: translateY(-6.5px) rotate(-45deg);
}

.btn-account {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.22rem 0.55rem 0.22rem 0.28rem;
  border-radius: 999px;
  border: 1px solid var(--border, #232838);
  background: var(--surface-2, #12161f);
  color: var(--text, #e8ecf4);
  font-size: 0.84rem;
  font-weight: 500;
  max-width: 10.5rem;
  cursor: pointer;
}
.btn-account:hover,
.btn-account:focus-visible,
.btn-account.show {
  background: var(--surface-3, #1a1f2b);
  border-color: var(--text-faint, #3a4256);
  outline: none;
}
.account-avatar {
  width: 1.65rem;
  height: 1.65rem;
  border-radius: 50%;
  background: var(--accent-soft, color-mix(in srgb, var(--accent) 16%, transparent));
  color: var(--accent, #e3b341);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  font-weight: 700;
  flex-shrink: 0;
}
.account-name {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.account-menu {
  min-width: 13rem;
  padding: 0.4rem;
  border-radius: 12px;
  border: 1px solid var(--border, #232838);
  background: var(--surface, #12161f);
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.35);
}
.account-menu .dropdown-item {
  border-radius: 8px;
  font-size: 0.88rem;
  color: var(--text, #e8ecf4);
  padding: 0.45rem 0.7rem;
}
.account-menu .dropdown-item:hover,
.account-menu .dropdown-item:focus {
  background: var(--accent-soft, color-mix(in srgb, var(--accent) 12%, transparent));
  color: var(--text);
}
.account-menu .dropdown-divider {
  border-color: var(--border-soft, #1e2430);
  margin: 0.3rem 0;
}

.btn-nav-login {
  display: inline-flex;
  align-items: center;
  padding: 0.38rem 0.95rem;
  border-radius: 999px;
  border: 1px solid var(--border, #232838);
  background: transparent;
  color: var(--text, #e8ecf4) !important;
  font-size: 0.86rem;
  font-weight: 500;
  text-decoration: none !important;
  transition: background 0.15s, border-color 0.15s, color 0.15s;
}
.btn-nav-login:hover {
  background: var(--accent-soft, color-mix(in srgb, var(--accent) 14%, transparent));
  border-color: color-mix(in srgb, var(--accent) 40%, transparent);
  color: var(--accent, #e3b341) !important;
}

.site-nav-utils .nav-account-desktop { display: none; }

/* ── Drawer lives on <body> (not inside header) so fixed positioning works.
   Header has backdrop-filter which creates a containing block and would
   clip any fixed child to the 3.5rem bar. ── */
.site-nav-drawer {
  position: fixed;
  inset: 0;
  z-index: var(--nav-drawer-z);
  pointer-events: none;
  visibility: hidden;
}
.site-nav-drawer.is-open {
  pointer-events: auto;
  visibility: visible;
}

.site-nav-drawer-backdrop {
  position: absolute;
  inset: 0;
  z-index: 1;
  background: rgba(0, 0, 0, 0.55);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  opacity: 0;
  transition: opacity 0.25s ease;
  cursor: pointer;
}
.site-nav-drawer.is-open .site-nav-drawer-backdrop { opacity: 1; }

.site-nav-drawer-panel {
  position: absolute;
  top: 0;
  bottom: 0;
  inset-inline-end: 0;
  z-index: 2;
  width: var(--nav-drawer-w);
  max-width: 100%;
  display: flex;
  flex-direction: column;
  background: var(--surface, #12161f);
  border-inline-start: 1px solid var(--border, #232838);
  box-shadow: -16px 0 48px rgba(0, 0, 0, 0.45);
  transform: translate3d(100%, 0, 0);
  transition: transform 0.32s var(--nav-ease);
  overflow: hidden;
  will-change: transform;
}
html[dir="rtl"] .site-nav-drawer-panel {
  box-shadow: 16px 0 48px rgba(0, 0, 0, 0.45);
  transform: translate3d(-100%, 0, 0);
}
.site-nav-drawer.is-open .site-nav-drawer-panel {
  transform: translate3d(0, 0, 0) !important;
}

.site-nav-drawer-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  padding: 0.85rem 1rem;
  border-bottom: 1px solid var(--border-soft, #1e2430);
  min-height: var(--nav-h);
  flex-shrink: 0;
}
.site-nav-drawer-title {
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--text-faint, #6b7280);
}

.site-nav-drawer-body {
  flex: 1 1 auto;
  overflow-y: auto;
  overscroll-behavior: contain;
  padding: 0.75rem 0.85rem 1.25rem;
  -webkit-overflow-scrolling: touch;
}

.nav-section-label {
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--text-faint, #6b7280);
  padding: 0.85rem 0.65rem 0.35rem;
  list-style: none;
}

.site-nav-drawer .site-nav-link {
  display: flex;
  width: 100%;
  padding: 0.8rem 0.85rem;
  border-radius: 12px;
  font-size: 1rem;
  font-weight: 500;
}
.site-nav-drawer .site-nav-link.active {
  background: var(--accent-soft, color-mix(in srgb, var(--accent) 14%, transparent));
}

.site-nav-drawer-footer {
  border-top: 1px solid var(--border-soft, #1e2430);
  padding: 0.85rem 1rem 1.1rem;
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
  background: color-mix(in srgb, var(--surface, #12161f) 92%, transparent);
  flex-shrink: 0;
}
.site-nav-drawer-footer .btn-nav-login,
.site-nav-drawer-footer .btn-account {
  width: 100%;
  max-width: none;
  justify-content: center;
}
.site-nav-drawer-footer .btn-account {
  justify-content: flex-start;
  padding: 0.5rem 0.75rem;
}
.site-nav-drawer-footer .lang-slot {
  display: flex;
  justify-content: center;
}

@media (min-width: 992px) {
  .nav-menu-btn { display: none !important; }
  .site-nav-primary { display: flex; }
  .site-nav-utils .nav-account-desktop { display: flex; align-items: center; }
  .site-nav-drawer { display: none !important; }
  .btn-nav-icon .nav-icon-label { display: none; }
}

@media (min-width: 1200px) {
  .btn-nav-icon .nav-icon-label { display: inline; }
}

html[data-theme="light"] .account-menu {
  background: var(--surface, #fff);
  border-color: var(--border, #e2e5eb);
  box-shadow: 0 12px 32px rgba(26, 29, 38, 0.12);
}
html[data-theme="light"] .site-nav-drawer-panel {
  background: var(--surface, #fff);
  box-shadow: -12px 0 40px rgba(26, 29, 38, 0.12);
}
html[data-theme="light"] .btn-account {
  background: var(--surface, #fff);
  border-color: var(--border, #e2e5eb);
}

@media (prefers-reduced-motion: reduce) {
  .site-nav-drawer-panel,
  .site-nav-drawer-backdrop,
  .nav-menu-btn .nav-burger span {
    transition: none !important;
  }
}

@supports (padding: max(0px)) {
  .site-nav-drawer-panel {
    padding-bottom: max(0px, env(safe-area-inset-bottom));
  }
  .site-nav-bar {
    padding-inline-start: max(0.85rem, env(safe-area-inset-left));
    padding-inline-end: max(0.85rem, env(safe-area-inset-right));
  }
}