/* Shared navigation: navy glass and precision line icons. */
.site-header, .site-header * { box-sizing: border-box; }
.site-header { position: sticky; top: 0; z-index: 40; border-bottom: 1px solid #a5c6e21c; background: linear-gradient(115deg, #0d1b2aef, #080f1ef5 58%, #0b1625f2); box-shadow: 0 8px 32px #02061726; backdrop-filter: blur(22px); -webkit-backdrop-filter: blur(22px); font-family: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; }
.site-header::before { position: absolute; top: 0; left: 0; right: 0; height: 1px; background: linear-gradient(90deg, transparent, #67e8f94d, transparent); content: ''; }
.site-header__inner { position: relative; display: flex; align-items: center; gap: 24px; max-width: 1248px; min-height: 88px; margin-inline: auto; padding: 16px 24px; }
.site-header a { text-decoration: none; }
.site-header a, .site-header button, .site-nav__toggle { -webkit-tap-highlight-color: transparent; }
.site-header :focus-visible, .site-skip:focus-visible { outline: 2px solid #67e8f9; outline-offset: 4px; }
.site-brand { display: inline-flex; flex-shrink: 0; align-items: center; gap: 12px; color: #f1f5f9; }
.site-brand__mark { display: grid; width: 48px; height: 48px; place-items: center; border: 1px solid #67e8f929; border-radius: 15px; background: linear-gradient(145deg, #164e633b, #0f172a); box-shadow: inset 0 1px #ffffff0f, 0 6px 20px #02061733; transition: border-color .2s, box-shadow .2s; }
.site-brand__mark img { display: block; width: 34px; height: 34px; }
.site-brand:hover .site-brand__mark { border-color: #67e8f970; box-shadow: 0 0 20px #22d3ee16; }
.site-brand__type > span { display: block; font-size: 23px; font-weight: 700; letter-spacing: -.9px; line-height: 1.15; }
.site-brand__dot { color: #67e8f9; }
.site-brand__type small { display: block; margin-top: 5px; color: #94a9bd; font-size: 8px; font-weight: 650; letter-spacing: 1.8px; }
.site-nav__icon { display: block; flex: 0 0 auto; }
.site-nav__desktop { display: flex; align-items: center; justify-content: center; gap: 3px; margin-inline: auto; }
.site-nav__link { position: relative; display: inline-flex; min-height: 44px; align-items: center; gap: 8px; padding: 10px 12px; border: 1px solid transparent; border-radius: 10px; color: #b3bfd0; font-size: 12px; font-weight: 550; white-space: nowrap; transition: color .2s, background .2s, border-color .2s; }
.site-nav__link .site-nav__icon { width: 18px; height: 18px; color: #829bb0; transition: color .2s; }
.site-nav__link:hover, .site-nav__link[aria-current] { border-color: #67e8f921; color: #ecfeff; background: #67e8f909; }
.site-nav__link:hover .site-nav__icon, .site-nav__link[aria-current] .site-nav__icon { color: #67e8f9; }
.site-nav__link[aria-current]::after { position: absolute; bottom: -7px; left: 40%; right: 40%; height: 2px; border-radius: 2px; background: #67e8f9; content: ''; }
.site-header__actions { display: flex; flex-shrink: 0; align-items: center; gap: 16px; padding-left: 20px; border-left: 1px solid #94a3b822; }
.site-nav__account { display: inline-flex; min-height: 44px; align-items: center; gap: 7px; color: #b3bfd0; font-size: 12px; font-weight: 550; }
.site-nav__account .site-nav__icon { width: 17px; height: 17px; }
.site-nav__account:hover, .site-nav__account[aria-current] { color: #a5f3fc; }
.site-nav__button { display: inline-flex; min-height: 44px; align-items: center; justify-content: center; gap: 9px; padding: 11px 15px; border: 1px solid #94a3b830; border-radius: 10px; font-size: 12px; font-weight: 650; line-height: 1.4; cursor: pointer; transition: background .2s, border-color .2s, box-shadow .2s; }
.site-nav__button .site-nav__icon { width: 17px; height: 17px; }
.site-nav__button--primary { border-color: #a5f3fc66; background: linear-gradient(125deg, #b0f1f7, #67dce9); color: #082f49; box-shadow: inset 0 1px #ffffff70, 0 4px 18px #22d3ee12; }
.site-nav__button--primary:hover { background: #cffafe; box-shadow: 0 4px 22px #22d3ee30; }
.site-nav__button--quiet { color: #d1dce8; background: #ffffff03; }
.site-nav__button--quiet:hover, .site-nav__button--quiet[aria-current] { border-color: #67e8f959; background: #67e8f90a; }
.site-nav__mobile { display: none; }
.site-skip { position: fixed; top: 10px; left: 10px; z-index: 60; padding: 12px 20px; border-radius: 8px; background: #a5f3fc; color: #082f49; transform: translateY(-160%); }
.site-skip:focus { transform: none; }
#page-content, #konverter, #so-funktionierts, #formate, #fragen, #history-title { scroll-margin-top: 110px; }
@media (max-width: 1139px) {
  .site-header__inner { min-height: 80px; gap: 16px; }
  .site-nav__desktop { display: none; }
  .site-header__actions { margin-left: auto; border-left: 0; padding-left: 0; }
  .site-nav__mobile { display: block; }
  .site-nav__toggle { display: flex; min-width: 44px; min-height: 44px; align-items: center; justify-content: center; gap: 8px; padding: 10px 12px; border: 1px solid #94a3b833; border-radius: 10px; color: #d4e2ee; background: #ffffff04; cursor: pointer; list-style: none; font-size: 12px; font-weight: 600; }
  .site-nav__toggle::-webkit-details-marker { display: none; }
  .site-nav__toggle:hover, .site-nav__mobile[open] .site-nav__toggle { border-color: #67e8f957; background: #67e8f90a; color: #a5f3fc; }
  .site-nav__close-line, .site-nav__mobile[open] .site-nav__menu-line { display: none; }
  .site-nav__mobile[open] .site-nav__close-line { display: block; }
  .site-nav__panel { position: absolute; top: calc(100% + 8px); right: 20px; width: min(430px, calc(100% - 40px)); max-height: calc(100dvh - 104px); overflow-y: auto; overscroll-behavior: contain; padding: 20px; border: 1px solid #7ba1b83b; border-radius: 18px; background: linear-gradient(140deg, #101f30, #0a1221 80%); box-shadow: 0 24px 64px #02061799, inset 0 1px #ffffff08; }
  .site-nav__panel-heading { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 0 2px 15px; border-bottom: 1px solid #94a3b81c; color: #97acbf; font-size: 9px; font-weight: 600; letter-spacing: 1.4px; }
  .site-nav__formats { display: inline-flex; align-items: center; gap: 8px; color: #9bd8e1; font-size: 9px; letter-spacing: .6px; }
  .site-nav__formats i { width: 3px; height: 3px; border-radius: 50%; background: #6c9aa4; }
  .site-nav__mobile-links { display: grid; gap: 5px; padding-block: 12px; }
  .site-nav__mobile-link { display: flex; align-items: center; gap: 12px; min-height: 70px; padding: 10px; border: 1px solid transparent; border-radius: 12px; color: #d8e4f0; transition: background .2s, border-color .2s; }
  .site-nav__mobile-link:hover, .site-nav__mobile-link[aria-current] { background: #67e8f907; border-color: #67e8f926; }
  .site-nav__tile { display: grid; width: 40px; height: 40px; flex-shrink: 0; place-items: center; border: 1px solid #67e8f926; border-radius: 12px; color: #8ee5ef; background: linear-gradient(145deg, #67e8f912, #67e8f903); box-shadow: inset 0 1px #ffffff08; }
  .site-nav__mobile-link strong { display: block; font-size: 13px; font-weight: 600; }
  .site-nav__mobile-link small { display: block; margin-top: 4px; color: #99abbe; font-size: 11px; line-height: 1.5; }
  .site-nav__mobile-link > .site-nav__icon { width: 15px; height: 15px; margin-left: auto; color: #68859b; }
  .site-nav__panel-footer { display: flex; flex-wrap: wrap; align-items: center; gap: 10px; padding-top: 16px; border-top: 1px solid #94a3b81c; }
  .site-nav__panel-footer > * { flex: 1 1 auto; }
  .site-nav__session { display: flex; align-items: center; gap: 7px; color: #a5c5d5; font-size: 11px; }
  .site-nav__session .site-nav__icon { color: #8ee5ef; width: 17px; height: 17px; }
}
@media (max-width: 600px) {
  .site-header__inner { min-height: 76px; padding: 12px 16px; gap: 10px; }
  .site-brand { gap: 9px; }
  .site-brand__mark { width: 42px; height: 42px; border-radius: 13px; }
  .site-brand__mark img { width: 30px; height: 30px; }
  .site-brand__type > span { font-size: 21px; }
  .site-brand__type small { font-size: 7px; letter-spacing: 1.2px; }
  .site-header__actions { display: none; }
  .site-nav__mobile { margin-left: auto; }
  .site-nav__panel { right: 12px; width: calc(100% - 24px); padding: 16px; max-height: calc(100dvh - 98px); }
  #page-content, #konverter, #so-funktionierts, #formate, #fragen, #history-title { scroll-margin-top: 96px; }
}
@media (prefers-reduced-motion: reduce) {
  .site-header *, .site-header *::before, .site-header *::after { animation: none !important; transition: none !important; }
}