/* ==========================================================================
   Skip link
   ========================================================================== */

.skip-link {
  position: fixed;
  top: -4rem;
  left: 1rem;
  z-index: 1000;
  padding: .75rem 1.25rem;
  background: var(--c-dark);
  color: var(--c-white);
  border-radius: .75rem;
  transition: top .2s ease-in-out;
}

.skip-link:focus {
  top: 1rem;
}

#landing:focus {
  outline: none;
}

/* ==========================================================================
   Nav
   ========================================================================== */

.nav-wrapper {
  position: fixed;
  z-index: 100;
  bottom: .5rem;
  left: 0;
  right: 0;
  width: max-content;
  margin: 0 auto;
  display: flex;
  align-items: stretch;
  gap: 1rem;
}

/* Landing-intro entrance (see .landing-veil for the full rundown of why this
   lives under .js): without JS, the nav simply renders in its normal resting
   position straight away. */
.js .nav-wrapper {
  transform: translateY(100%);
  opacity: 0;
  transition: transform 1s cubic-bezier(0.16, 1, 0.3, 1) .5s, opacity .6s ease .5s;
}

body.is-loaded .nav-wrapper {
  transform: translateY(0);
  opacity: 1;
}

nav {
  width: 60vw;
  background: var(--c-white);
  padding: .5rem 1.5rem .5rem .5rem;
  border-radius: 2rem;
  display: flex;
  gap: 1.5rem;
  align-items: center;
  justify-content: space-between;
  box-shadow: 0 -2px 12px rgba(0, 0, 0, .12);
}

nav a:focus-visible {
  color: var(--c-accent);
}

.nav-back {
  display: flex;
  align-items: center;
  justify-content: center;
  /* Explicit height rather than relying on the wrapper's flex stretch: Chromium
     won't derive a flex item's main-axis size from aspect-ratio when the cross
     size only comes from stretch alignment, only from a declared length. This
     matches nav's own rendered height closely enough to look identical. */
  height: 3.625rem;
  aspect-ratio: 1/1;
  border: none;
  background: var(--c-white);
  border-radius: 2rem;
  padding: .75rem;
  cursor: pointer;
  box-shadow: 0 -2px 12px rgba(0, 0, 0, .12);
  transition: background-color .3s ease-in-out;
}

.nav-back:focus-visible {
  background: var(--c-accent-hover);
}

.nav-back:focus-visible svg path {
  stroke: var(--c-white);
}

.nav-back svg {
  transform: scaleX(-1);
}

.nav-logo {
  width: 2.5rem;
  height: 2.5rem;
}

/* Hamburger toggle (mobile only) */
.nav-toggle {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 6px;
  width: 2rem;
  height: 2rem;
  padding: 0;
  border: none;
  background: none;
  cursor: pointer;
}

.nav-toggle span {
  display: block;
  width: 100%;
  height: 1px;
  background: var(--c-dark);
  border-radius: 1px;
  transition: transform .3s ease-in-out, opacity .2s ease-in-out;
}

.nav-toggle.is-open span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-toggle.is-open span:nth-child(2) {
  opacity: 0;
}

.nav-toggle.is-open span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Nav links: compact panel that unfolds upward above the pill on mobile,
   keeping the pill's own width - not fullscreen. Logo/toggle stay visible
   since this is positioned out of nav's normal flex flow. */
nav ul.nav-links {
  list-style-type: none;
  position: absolute;
  left: 50%;
  bottom: calc(100% + .75rem);
  width: 100%;
  box-sizing: border-box;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: .25rem;
  margin: 0;
  padding: 1rem 1.25rem;
  background: var(--c-white);
  border-radius: 1.5rem;
  box-shadow: 0 -2px 12px rgba(0, 0, 0, .12);
  max-height: 0;
  overflow: hidden;
  opacity: 0;
  pointer-events: none;
  transform: translate(-50%, 8px);
  transition: max-height .4s ease-in-out, opacity .35s ease-in-out, transform .4s ease-in-out;
}

nav ul.nav-links.is-open {
  max-height: 22rem;
  opacity: 1;
  transform: translate(-50%, 0);
  pointer-events: auto;
}

nav ul.nav-links a {
  display: block;
  padding: .6rem 1rem;
  border-radius: .75rem;
}

nav ul.nav-links a.is-active {
  text-decoration: underline;
  text-underline-offset: .3rem;
}

.nav-lang-item {
  margin-top: 1.25rem;
}

/* Menu items slide up and fade in, staggered, as the panel opens */
nav ul.nav-links li {
  opacity: 0;
  transform: translateY(12px);
  transition: opacity .4s ease-in-out, transform .4s ease-in-out;
}

nav ul.nav-links.is-open li {
  opacity: 1;
  transform: translateY(0);
}

nav ul.nav-links.is-open li:nth-child(1) {
  transition-delay: .05s;
}

nav ul.nav-links.is-open li:nth-child(2) {
  transition-delay: .1s;
}

nav ul.nav-links.is-open li:nth-child(3) {
  transition-delay: .15s;
}

nav ul.nav-links.is-open li:nth-child(4) {
  transition-delay: .2s;
}

nav ul.nav-links.is-open li:nth-child(5) {
  transition-delay: .25s;
}

/* ==========================================================================
   Footer
   ========================================================================== */

footer {
  background-color: var(--c-dark);
  padding: 4rem 2rem 8rem 2rem;
  color: var(--c-white);
}

.logo-container {
  background-color: var(--c-white);
  width: 16rem !important;
  padding: .25rem .5rem .25rem .1rem;
  border-radius: 5rem;
}

.imprint-links {
  gap: 1rem;
}

.btn-ftr {
  background: var(--c-white);
  color: var(--c-dark);
}

/* ==========================================================================
   Reduced motion
   ========================================================================== */

@media (prefers-reduced-motion: reduce) {
  .js .nav-wrapper {
    transform: none;
    opacity: 1;
    transition: none;
  }
}

/* ==========================================================================
   Hover
   ========================================================================== */

@media (hover: hover) {
  nav a:hover {
    color: var(--c-accent);
  }

  .nav-back:hover {
    background: var(--c-accent-hover);
  }

  .nav-back:hover svg path {
    stroke: var(--c-white);
  }
}

/* ==========================================================================
   Breakpoint: 720px
   ========================================================================== */

@media screen and (min-width: 720px) {

  /* Nav */
  .nav-wrapper {
    bottom: 0;
  }

  nav {
    width: max-content;
    justify-content: center;
    gap: 3rem;
    border-radius: 0;
    border-top-left-radius: 2rem;
    border-top-right-radius: 2rem;
  }

  .nav-back {
    border-radius: 0;
    border-top-left-radius: 2rem;
    border-top-right-radius: 2rem;
  }

  .nav-toggle {
    display: none;
  }

  nav ul.nav-links,
  nav ul.nav-links.is-open {
    position: static;
    flex-direction: row;
    gap: 1.5rem;
    width: auto;
    padding: 0;
    background: none;
    box-shadow: none;
    max-height: none;
    opacity: 1;
    transform: none;
    transition: none;
    pointer-events: auto;
  }

  nav ul.nav-links li,
  nav ul.nav-links.is-open li {
    opacity: 1;
    transform: none;
    transition: none;
    transition-delay: 0s;
  }

  .nav-lang-item {
    margin-top: 0;
  }

  /* Footer */
  footer {
    padding: 8rem 2rem 8rem 2rem;
  }

  .footer-wrapper {
    display: grid;
    grid-template-columns: 1fr 2fr;
    width: 100%;
    max-width: 1320px;
  }

  .claim-container,
  .footer-text-container {
    grid-column: 2 / span 1;
  }

  .imprint-links {
    flex-direction: row;
  }

}