/* Skip-Link ---------------------------------------------------------------- */

.skip-link {
  position: absolute;
  left: 16px;
  top: -100px;
  z-index: 200;
  padding: 0.8em 1.4em;
  border-radius: var(--radius-sm);
  background: var(--color-accent);
  color: #fff;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.92rem;
  transition: top 0.2s var(--ease);
}

.skip-link:focus {
  top: 16px;
}

/* Buttons ---------------------------------------------------------------- */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.6em;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.95rem;
  padding: 0.95em 1.7em;
  border-radius: 999px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.35s var(--ease), box-shadow 0.35s var(--ease), background 0.3s, color 0.3s, border-color 0.3s;
  white-space: nowrap;
}

.btn svg {
  width: 1em;
  height: 1em;
  transition: transform 0.35s var(--ease);
}

.btn:hover svg {
  transform: translateX(3px);
}

.btn--primary {
  background: var(--color-accent);
  color: #fff;
  box-shadow: 0 10px 24px rgba(33, 90, 112, 0.28);
}

.btn--primary:hover {
  background: var(--color-accent-light);
  transform: translateY(-2px);
  box-shadow: 0 16px 32px rgba(33, 90, 112, 0.34);
}

.btn--ghost {
  background: transparent;
  color: var(--color-heading);
  border-color: var(--color-border);
}

.btn--ghost:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
  transform: translateY(-2px);
}

.btn--on-dark {
  background: rgba(255, 255, 255, 0.08);
  color: #fff;
  border-color: rgba(255, 255, 255, 0.35);
  backdrop-filter: blur(6px);
}

.btn--on-dark:hover {
  background: #fff;
  color: var(--color-ink);
  border-color: #fff;
}

/* Header ------------------------------------------------------------------ */

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 20px 0;
  transition: padding 0.4s var(--ease), background 0.4s var(--ease), box-shadow 0.4s var(--ease);
  --nav-color: rgba(255, 255, 255, 0.92);
  --nav-active: var(--color-accent-text);
  --nav-border: rgba(255, 255, 255, 0.3);
}

.site-header::before {
  content: "";
  position: absolute;
  inset: 0;
  background: rgba(10, 18, 24, 0);
  backdrop-filter: blur(0px);
  transition: background 0.4s var(--ease), backdrop-filter 0.4s var(--ease), box-shadow 0.4s var(--ease);
  z-index: -1;
}

.site-header.is-scrolled {
  padding: 12px 0;
  --nav-border: rgba(255, 255, 255, 0.16);
}

.site-header.is-scrolled::before {
  background: rgba(10, 18, 24, 0.82);
  backdrop-filter: blur(14px);
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.06), 0 12px 30px rgba(0, 0, 0, 0.3);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.15rem;
  color: var(--nav-color);
  transition: color 0.4s var(--ease);
}

.brand img {
  height: 34px;
  width: auto;
  filter: brightness(0) invert(1);
  transition: transform 0.4s var(--ease);
}

.brand:hover img {
  transform: rotate(-6deg) scale(1.06);
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 34px;
}

.main-nav a {
  position: relative;
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 0.95rem;
  color: var(--nav-color);
  padding: 6px 0;
  transition: color 0.4s var(--ease);
}

.main-nav a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 0;
  height: 2px;
  background: var(--nav-active);
  transition: width 0.35s var(--ease), background 0.4s var(--ease);
}

.main-nav a:hover::after,
.main-nav a.is-active::after {
  width: 100%;
}

.main-nav a.is-active {
  color: var(--nav-active);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 14px;
}

.icon-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: 50%;
  color: var(--nav-color);
  border: 1px solid var(--nav-border);
  transition: background 0.3s, color 0.3s, transform 0.3s var(--ease), border-color 0.4s var(--ease);
}

.icon-link:hover {
  background: var(--color-accent);
  color: #fff;
  border-color: var(--color-accent);
  transform: translateY(-2px);
}

.icon-link svg {
  width: 18px;
  height: 18px;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 42px;
  height: 42px;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  border: 1px solid var(--nav-border);
  background: none;
  cursor: pointer;
  transition: border-color 0.4s var(--ease);
}

.nav-toggle span {
  width: 18px;
  height: 2px;
  background: var(--nav-color);
  transition: transform 0.3s var(--ease), opacity 0.3s var(--ease), background 0.4s var(--ease);
}

/* Footer -------------------------------------------------------------------- */

.site-footer {
  background: var(--color-ink);
  color: rgba(255, 255, 255, 0.72);
  padding: 72px 0 28px;
  position: relative;
  overflow: hidden;
}

.site-footer a:hover {
  color: #fff;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 48px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.1rem;
  color: #fff;
  margin-bottom: 14px;
}

.footer-brand img {
  height: 30px;
  filter: brightness(0) invert(1);
}

.footer-col h4 {
  color: #fff;
  font-size: 0.85rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 18px;
}

.footer-col ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
  font-size: 0.95rem;
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  padding-top: 24px;
  font-size: 0.85rem;
}

.footer-bottom ul {
  list-style: none;
  display: flex;
  gap: 20px;
  margin: 0;
  padding: 0;
  flex-wrap: wrap;
}

.footer-social {
  display: flex;
  gap: 10px;
}

.footer-social a {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.2);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: background 0.3s, border-color 0.3s, transform 0.3s var(--ease);
}

.footer-social a:hover {
  background: var(--color-accent);
  border-color: var(--color-accent);
  transform: translateY(-2px);
}

.footer-social svg {
  width: 16px;
  height: 16px;
}

/* Fixes Mini-Logo beim Scrollen --------------------------------------------- */

.pixel-logo-mini {
  position: fixed;
  right: 22px;
  bottom: 22px;
  width: 50px;
  height: 50px;
  padding: 0;
  font: inherit;
  border-radius: 50%;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-md);
  z-index: 80;
  opacity: 0;
  transform: translateY(14px) scale(0.75);
  pointer-events: none;
  transition: opacity 0.4s var(--ease), transform 0.4s var(--ease), border-color 0.3s;
  cursor: pointer;
}

.pixel-logo-mini.is-visible {
  opacity: 1;
  transform: translateY(0) scale(1);
  pointer-events: auto;
}

.pixel-logo-mini:hover {
  border-color: var(--color-accent-text);
}

.pixel-logo-mini img {
  width: 22px;
  height: auto;
  filter: brightness(0) invert(1);
}

@media (prefers-reduced-motion: reduce) {
  .pixel-logo-mini {
    transition: opacity 0.2s linear;
    transform: none;
  }
}

/* Utility ------------------------------------------------------------------- */

.pixel-motif {
  position: absolute;
  pointer-events: none;
  opacity: 0.5;
}

/* Der Startzustand gilt nur, wenn das Inline-Skript im <head> die Klasse .js
   gesetzt hat. Ohne JavaScript bleiben alle Inhalte sichtbar, statt auf ein
   is-visible zu warten, das dann nie kommt. */
.js .reveal {
  opacity: 0;
  transform: translateY(28px);
}

.js .reveal.is-ready {
  transition: opacity 0.8s var(--ease), transform 0.8s var(--ease);
}

.js .reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.tag {
  display: inline-block;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-accent-text);
  background: var(--color-accent-pale);
  padding: 0.4em 0.9em;
  border-radius: 999px;
}

@media (max-width: 900px) {
  .main-nav {
    position: fixed;
    inset: 0;
    top: 0;
    background: var(--color-ink);
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 32px;
    transform: translateY(-100%);
    transition: transform 0.5s var(--ease);
    z-index: 90;
  }

  .main-nav.is-open {
    transform: translateY(0);
  }

  .main-nav a {
    color: #fff;
    font-size: 1.4rem;
  }

  .nav-toggle {
    display: flex;
  }

  body.nav-open {
    overflow: hidden;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }
}