/* Layers: 3D UI stack, Vercel palette */
*,
*::before,
*::after {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  height: 100%;
  overflow: hidden;
  background: #000000;
  color: #ededed;
  font-family: Geist, Inter, system-ui, -apple-system, sans-serif;
}

.layers-page {
  position: relative;
  width: 100%;
  height: 100%;
}

#layersCanvas {
  display: block;
  width: 100%;
  height: 100%;
  touch-action: none;
}

.layers-loader {
  position: fixed;
  inset: 0;
  z-index: 20;
  display: grid;
  place-items: center;
  background: #000000;
  transition: opacity 0.35s ease, visibility 0.35s ease;
}

.layers-loader.is-hidden {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.layers-loader__dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #0070f3;
  animation: layers-pulse 1s ease-in-out infinite;
}

@keyframes layers-pulse {
  0%,
  100% {
    opacity: 0.25;
    transform: scale(0.85);
  }

  50% {
    opacity: 1;
    transform: scale(1);
  }
}

@media (prefers-reduced-motion: reduce) {
  .layers-loader__dot {
    animation: none;
    opacity: 0.6;
  }
}

.back-button {
  position: fixed;
  top: 20px;
  right: 20px;
  left: auto;
  z-index: 310;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.1);
  color: rgba(237, 237, 237, 0.55);
  text-decoration: none;
  transition: background-color 0.15s ease, color 0.15s ease, border-color 0.15s ease;
}

.back-button:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.16);
  color: #ededed;
}

@media (max-width: 767px) {
  .back-button {
    top: 16px;
    right: 16px;
  }
}

/* Sidebar 001-inspired card navigation (left) */
.layers-sidebar {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 300;
  display: flex;
  flex-direction: column;
  width: 220px;
  height: 100%;
  background: transparent;
  border: none;
  pointer-events: none;
}

.layers-sidebar__resize {
  position: absolute;
  top: 0;
  right: 0;
  z-index: 2;
  width: 4px;
  height: 100%;
  cursor: col-resize;
  pointer-events: auto;
}

.layers-sidebar__resize::after {
  display: none;
}

.layers-sidebar__content {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-height: 100%;
  overflow-y: auto;
  padding: 24px 0;
  scrollbar-width: none;
  pointer-events: auto;
}

.layers-sidebar__content::-webkit-scrollbar {
  display: none;
}

.layers-sidebar__list {
  position: relative;
  flex-shrink: 0;
  margin-block: auto;
  padding: 0 12px 0 8px;
}

.layers-sidebar__hover {
  position: absolute;
  left: 0;
  right: 8px;
  top: 0;
  height: 0;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.05);
  pointer-events: none;
  transition: transform 0.28s cubic-bezier(0.34, 1.3, 0.64, 1), height 0.28s cubic-bezier(0.34, 1.3, 0.64, 1);
  will-change: transform, height;
}

.layers-sidebar__active-bar {
  position: absolute;
  left: 4px;
  top: 0;
  width: 23px;
  height: 2px;
  border-radius: 999px;
  background: #ededed;
  pointer-events: none;
  transform: translateY(0);
  will-change: transform, background-color;
}

.layers-sidebar__item {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  justify-content: flex-start;
  gap: 10px;
  width: 100%;
  margin: 0;
  padding: 6px 4px 6px 8px;
  border: none;
  background: transparent;
  color: rgba(237, 237, 237, 0.55);
  font: inherit;
  text-align: left;
  cursor: pointer;
  transition:
    color 0.2s ease,
    opacity 0.28s cubic-bezier(0.34, 1.3, 0.64, 1),
    transform 0.28s cubic-bezier(0.34, 1.3, 0.64, 1);
}

.layers-sidebar__item-kicker {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.06em;
  color: #888888;
  transition: color 0.25s ease;
}

.layers-sidebar__item-lines {
  position: relative;
  flex-shrink: 0;
  width: 26px;
  height: 28px;
}

.layers-sidebar__line {
  position: absolute;
  left: 0;
  height: 1px;
  background: rgba(237, 237, 237, 0.24);
  transition:
    width 0.28s cubic-bezier(0.34, 1.3, 0.64, 1),
    opacity 0.2s ease,
    background-color 0.25s ease;
}

.layers-sidebar__line--main {
  top: 50%;
  width: 18px;
  transform: translateY(-50%);
}

.layers-sidebar__line--a {
  top: 0;
  width: 16px;
  opacity: 0.35;
}

.layers-sidebar__line--b {
  top: 25%;
  width: 13px;
  opacity: 0.35;
}

.layers-sidebar__line--c {
  top: 75%;
  width: 13px;
  opacity: 0.35;
}

.layers-sidebar__item.is-hovered {
  color: #ededed;
  transform: translateX(6px);
}

.layers-sidebar__item.is-hovered .layers-sidebar__item-kicker {
  color: var(--item-accent, #ededed);
}

.layers-sidebar__item.is-hovered .layers-sidebar__line {
  background: color-mix(in srgb, var(--item-accent, #ededed) 72%, white);
}

.layers-sidebar__item.is-hovered .layers-sidebar__line--main {
  width: 26px;
}

.layers-sidebar__item.is-active {
  color: #ededed;
  transform: translateX(8px);
}

.layers-sidebar__item.is-active .layers-sidebar__item-kicker {
  color: var(--item-accent, #ededed);
}

.layers-sidebar__item.is-active .layers-sidebar__line {
  background: var(--item-accent, #ededed);
}

.layers-sidebar__item.is-active .layers-sidebar__line--main {
  width: 0;
  opacity: 0;
}

.layers-sidebar__item.is-dimmed {
  opacity: 0.3;
}

.layers-sidebar__item:focus-visible {
  outline: 2px solid color-mix(in srgb, var(--item-accent, #ededed) 55%, transparent);
  outline-offset: 2px;
  border-radius: 8px;
}

@media (max-width: 767px) {
  .layers-sidebar {
    width: min(220px, 72vw);
  }

  .layers-sidebar__resize {
    display: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  .layers-sidebar__item,
  .layers-sidebar__hover,
  .layers-sidebar__active-bar,
  .layers-sidebar__line {
    transition: none;
  }
}