/* Scroll navigation menu — CSS port of scroll-navigation-menu.tsx (royal theme) */

body.scroll-nav-enabled {
  --scroll-nav-bar: 5.75rem;
}

body.scroll-nav-enabled #main-content {
  padding-top: calc(var(--scroll-nav-bar) + env(safe-area-inset-top, 0px));
}

/* Inner pages: one stable offset under the fixed nav (no compact collapse) */
body.scroll-nav-enabled #main-content.app-page,
body.scroll-nav-enabled #main-content.app-catalog,
body.scroll-nav-enabled #main-content.cfg-page {
  padding-top: calc(var(--scroll-nav-bar) + env(safe-area-inset-top, 0px) + 0.25rem);
}

/* Main already clears the fixed nav — avoid double top offset on the hero */
body.scroll-nav-enabled #hero.hero--royal.section-panel {
  padding-block-start: clamp(1rem, 2.5vw, 1.75rem);
}

body.scroll-nav-enabled.scroll-nav--compact #main-content:not(.app-page):not(.app-catalog):not(.cfg-page) {
  padding-top: calc(0.5rem + env(safe-area-inset-top, 0px));
}

.site-nav.scroll-nav-host {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  transition:
    transform 0.35s var(--ease-out, ease),
    opacity 0.35s var(--ease-out, ease);
}

.site-nav.scroll-nav-host .nav-inner,
.site-nav.scroll-nav-host .nav-ornament {
  transition:
    transform 0.35s var(--ease-out, ease),
    opacity 0.35s var(--ease-out, ease);
}

body.scroll-nav--compact .site-nav.scroll-nav-host {
  transform: translateY(-100%);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  border-bottom-color: transparent;
  background: transparent !important;
  backdrop-filter: none !important;
  -webkit-backdrop-filter: none !important;
  box-shadow: none !important;
}

body.scroll-nav--compact .site-nav.scroll-nav-host::before {
  opacity: 0;
}

body.scroll-nav--compact .site-nav.scroll-nav-host .nav-inner,
body.scroll-nav--compact .site-nav.scroll-nav-host .nav-ornament {
  transform: none;
  opacity: 1;
}

body.scroll-nav--compact .site-nav.scroll-nav-host #mobile-menu {
  display: none !important;
}

/* Floating hamburger (visible when scrolled) */
.scroll-nav-fab {
  position: fixed;
  top: calc(1.25rem + env(safe-area-inset-top, 0px));
  right: calc(1.25rem + env(safe-area-inset-right, 0px));
  z-index: 1050;
  width: 3.5rem;
  height: 3.5rem;
  border: none;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  color: #fff;
  background: linear-gradient(135deg, var(--color-accent-start, #7c3aed), var(--color-accent-end, #22d3ee));
  box-shadow:
    0 8px 28px rgba(124, 58, 237, 0.45),
    0 0 0 1px rgba(167, 243, 208, 0.2);
  transform: scale(0);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition:
    transform 0.35s var(--ease-out, ease),
    opacity 0.35s var(--ease-out, ease),
    visibility 0.35s;
}

.scroll-nav-fab svg {
  width: 1.35rem;
  height: 1.35rem;
}

body.scroll-nav--compact .scroll-nav-fab {
  transform: scale(1);
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}

body.scroll-nav--compact .scroll-nav-fab:hover {
  transform: scale(1.08);
}

body.scroll-nav--compact .scroll-nav-fab:active {
  transform: scale(0.94);
}

body.scroll-nav-menu-open .scroll-nav-fab {
  transform: scale(1.1) rotate(180deg);
}

/* Backdrop */
.scroll-nav-backdrop {
  position: fixed;
  inset: 0;
  z-index: 1040;
  background: rgba(8, 10, 18, 0.82);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity 0.3s ease, visibility 0.3s;
}

body.scroll-nav-menu-open .scroll-nav-backdrop {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}

/* Centered popup menu */
.scroll-nav-menu {
  position: fixed;
  top: 50%;
  left: 50%;
  z-index: 1060;
  width: min(92vw, 22rem);
  padding: 2rem 1.75rem 1.75rem;
  border-radius: 1.5rem;
  border: 1px solid rgba(124, 58, 237, 0.35);
  background: linear-gradient(165deg, rgba(14, 18, 30, 0.98), rgba(8, 12, 22, 0.99));
  box-shadow:
    0 24px 64px rgba(0, 0, 0, 0.55),
    0 0 48px rgba(124, 58, 237, 0.2);
  transform: translate(-50%, -50%) scale(0.88);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition:
    transform 0.4s cubic-bezier(0.34, 1.4, 0.64, 1),
    opacity 0.3s ease,
    visibility 0.3s;
}

body.scroll-nav-menu-open .scroll-nav-menu {
  transform: translate(-50%, -50%) scale(1);
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}

.scroll-nav-menu__close {
  position: absolute;
  top: 0.85rem;
  right: 0.85rem;
  width: 2.25rem;
  height: 2.25rem;
  border: none;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  color: var(--color-text-muted);
  background: rgba(255, 255, 255, 0.06);
  transition: color var(--dur-fast), background var(--dur-fast), transform var(--dur-fast);
}

.scroll-nav-menu__close:hover {
  color: var(--color-text-primary);
  background: rgba(124, 58, 237, 0.25);
  transform: rotate(90deg);
}

.scroll-nav-menu__close svg {
  width: 1.1rem;
  height: 1.1rem;
}

.scroll-nav-menu__list {
  list-style: none;
  margin: 1.5rem 0 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.scroll-nav-menu__link {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 0.85rem 1rem;
  border-radius: 0.85rem;
  text-decoration: none;
  color: var(--color-text-primary);
  font-family: var(--font-body);
  font-size: 1.05rem;
  font-weight: 500;
  transition: background var(--dur-fast), transform var(--dur-fast), color var(--dur-fast);
}

.scroll-nav-menu__link:hover,
.scroll-nav-menu__link:focus-visible {
  background: rgba(124, 58, 237, 0.18);
  color: #22d3ee;
  transform: translateX(6px);
}

.scroll-nav-menu__icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2.25rem;
  height: 2.25rem;
  border-radius: 10px;
  color: #a7f3d0;
  background: linear-gradient(145deg, rgba(124, 58, 237, 0.35), rgba(34, 211, 238, 0.15));
}

.scroll-nav-menu__icon svg {
  width: 1.15rem;
  height: 1.15rem;
}

.scroll-nav-menu__link--cta {
  margin-top: 0.5rem;
  justify-content: center;
  background: linear-gradient(135deg, var(--color-accent-start), var(--color-accent-end));
  color: #fff;
  font-weight: 600;
}

.scroll-nav-menu__link--cta:hover,
.scroll-nav-menu__link--cta:focus-visible {
  transform: translateX(0) scale(1.02);
  color: #fff;
  box-shadow: 0 8px 24px rgba(124, 58, 237, 0.4);
}

.scroll-nav-menu__decor {
  position: absolute;
  border-radius: 50%;
  pointer-events: none;
}

.scroll-nav-menu__decor--a {
  top: -0.35rem;
  left: -0.35rem;
  width: 0.65rem;
  height: 0.65rem;
  background: var(--color-accent-end);
  animation: scroll-nav-pulse 2s ease-in-out infinite;
}

.scroll-nav-menu__decor--b {
  bottom: -0.35rem;
  right: -0.35rem;
  width: 0.5rem;
  height: 0.5rem;
  background: var(--color-accent-start);
  animation: scroll-nav-pulse 2.5s ease-in-out infinite 0.5s;
}

.scroll-nav-menu__list li {
  opacity: 0;
  transform: translateY(12px);
}

body.scroll-nav-menu-open .scroll-nav-menu__list li {
  animation: scroll-nav-item-in 0.45s cubic-bezier(0.34, 1.2, 0.64, 1) forwards;
}

body.scroll-nav-menu-open .scroll-nav-menu__list li:nth-child(1) { animation-delay: 0.05s; }
body.scroll-nav-menu-open .scroll-nav-menu__list li:nth-child(2) { animation-delay: 0.1s; }
body.scroll-nav-menu-open .scroll-nav-menu__list li:nth-child(3) { animation-delay: 0.15s; }
body.scroll-nav-menu-open .scroll-nav-menu__list li:nth-child(4) { animation-delay: 0.2s; }
body.scroll-nav-menu-open .scroll-nav-menu__list li:nth-child(5) { animation-delay: 0.25s; }
body.scroll-nav-menu-open .scroll-nav-menu__list li:nth-child(6) { animation-delay: 0.3s; }

@keyframes scroll-nav-item-in {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes scroll-nav-pulse {
  0%, 100% {
    opacity: 0.45;
    transform: scale(1);
  }
  50% {
    opacity: 1;
    transform: scale(1.25);
  }
}

@media (prefers-reduced-motion: reduce) {
  .site-nav.scroll-nav-host,
  .site-nav.scroll-nav-host .nav-inner,
  .scroll-nav-fab,
  .scroll-nav-backdrop,
  .scroll-nav-menu {
    transition: none;
  }

  body.scroll-nav-menu-open .scroll-nav-menu__list li {
    animation: none;
    opacity: 1;
    transform: none;
  }

  .scroll-nav-menu__decor {
    animation: none;
  }
}