/* BRAIN — Application screensaver */

.screensaver-root {
  position: fixed;
  inset: 0;
  z-index: 12000;
  pointer-events: none;
  opacity: 0;
  visibility: hidden;
  transition: opacity 800ms ease, visibility 0s linear 800ms;
}

.screensaver-root.is-active {
  pointer-events: auto;
  opacity: 1;
  visibility: visible;
  transition: opacity 800ms ease, visibility 0s;
}

.screensaver-root.is-exiting {
  opacity: 0;
  transition: opacity 420ms ease, visibility 0s linear 420ms;
}

.screensaver-root.is-exiting .screensaver-card {
  transition: opacity 380ms ease, transform 420ms ease;
  opacity: 0 !important;
}

.screensaver-backdrop {
  position: absolute;
  inset: 0;
  background: var(--screensaver-bg, var(--bg));
  transition: background-color 400ms ease;
}

.screensaver-vignette {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: radial-gradient(
    ellipse 85% 75% at 50% 45%,
    transparent 0%,
    color-mix(in srgb, var(--screensaver-bg, var(--bg)) 12%, transparent) 72%,
    color-mix(in srgb, var(--screensaver-bg, var(--bg)) 55%, transparent) 100%
  );
  opacity: 0.85;
}

.screensaver-stage {
  position: absolute;
  inset: 0;
  overflow: hidden;
  transform: translate3d(var(--ss-parallax-x, 0), var(--ss-parallax-y, 0), 0);
  transition: transform 120ms ease-out;
  will-change: transform;
}

/* Neural network mode — full-screen canvas atmosphere */
.screensaver-root--neural-network .screensaver-stage,
.screensaver-root--neural-network .screensaver-empty {
  display: none !important;
}

.screensaver-root--neural-network .screensaver-particles {
  opacity: 1 !important;
  z-index: 2;
}

.screensaver-neural-canvas {
  display: block;
  width: 100%;
  height: 100%;
  pointer-events: none;
}

.screensaver-root--floating-cards .screensaver-stage {
  z-index: 2;
}

/* Word cloud mode */
.screensaver-root--word-cloud .screensaver-stage,
.screensaver-root--word-cloud .screensaver-empty,
.screensaver-root--word-cloud .screensaver-particles {
  display: none !important;
}

.screensaver-word-cloud-wrap {
  position: absolute;
  inset: 0;
  z-index: 2;
  overflow: hidden;
  --ideas-parallax-x: 0;
  --ideas-parallax-y: 0;
  background:
    radial-gradient(ellipse 80% 60% at 50% 40%, rgba(59, 130, 246, 0.06), transparent 70%),
    transparent;
}

[data-theme='dark'] .screensaver-word-cloud-wrap {
  background:
    radial-gradient(ellipse 70% 55% at 50% 35%, rgba(59, 130, 246, 0.12), transparent 65%),
    transparent;
}

.screensaver-root--word-cloud .idea-cloud-word--readonly {
  pointer-events: none;
  cursor: default;
}

.screensaver-root--word-cloud .idea-cloud-word--readonly:hover,
.screensaver-root--word-cloud .idea-cloud-word--readonly.is-hovered {
  transform: none;
}

/* Idea galaxy mode */
.screensaver-root--idea-galaxy .screensaver-stage,
.screensaver-root--idea-galaxy .screensaver-empty,
.screensaver-root--idea-galaxy .screensaver-particles {
  display: none !important;
}

.screensaver-idea-galaxy-wrap {
  position: absolute;
  inset: 0;
  z-index: 2;
  min-height: 0;
  border: none;
  border-radius: 0;
  box-shadow: none;
  --ideas-parallax-x: 0px;
  --ideas-parallax-y: 0px;
  background:
    radial-gradient(ellipse 80% 60% at 50% 40%, rgba(59, 130, 246, 0.06), transparent 70%),
    transparent;
}

[data-theme='dark'] .screensaver-idea-galaxy-wrap {
  background:
    radial-gradient(ellipse 70% 55% at 50% 35%, rgba(59, 130, 246, 0.12), transparent 65%),
    transparent;
}

.screensaver-idea-galaxy-stage {
  position: absolute;
  left: 0;
  top: 0;
  transform-origin: center center;
  will-change: transform;
}

.screensaver-idea-galaxy-empty {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0;
  padding: 2rem;
  text-align: center;
  font-size: 1.05rem;
  font-weight: 500;
  color: var(--text-muted);
  z-index: 4;
  pointer-events: none;
}

.screensaver-idea-galaxy-empty.hidden {
  display: none;
}

.screensaver-root--idea-galaxy .idea-node--readonly {
  pointer-events: none;
  cursor: default;
}

.screensaver-root--idea-galaxy .idea-node--readonly:hover,
.screensaver-root--idea-galaxy .idea-node--readonly:focus-visible {
  transform: scaleX(var(--idea-stretch-x, 1)) scaleY(var(--idea-stretch-y, 1));
  z-index: auto;
}

/* Whiteboard mode */
.screensaver-root--whiteboard .screensaver-stage,
.screensaver-root--whiteboard .screensaver-empty,
.screensaver-root--whiteboard .screensaver-particles {
  display: none !important;
}

.screensaver-whiteboard-wrap {
  position: absolute;
  inset: 0;
  z-index: 2;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.screensaver-whiteboard-scroll {
  flex: 1;
  min-height: 0;
}

.screensaver-whiteboard-content {
  min-height: 100%;
  display: flex;
  flex-direction: column;
}

.screensaver-whiteboard-wrap .ideas-whiteboard-surface {
  flex: 1;
  min-height: min(100%, 720px);
  margin: 1.25rem;
  position: relative;
}

.screensaver-whiteboard-wrap .wb-ss-write-target {
  pointer-events: none;
  cursor: default;
}

.screensaver-whiteboard-wrap .wb-idea-heading,
.screensaver-whiteboard-wrap .wb-thought-line {
  display: inline-block;
  position: relative;
}

.screensaver-whiteboard-wrap .wb-ss-thought-line::before {
  content: none;
}

.screensaver-whiteboard-wrap .wb-ss-write-target.is-wb-writing {
  text-shadow:
    0.4px 0.4px 0 color-mix(in srgb, var(--wb-ink) 92%, transparent),
    -0.25px 0.25px 0 color-mix(in srgb, var(--wb-ink) 40%, transparent),
    0 0 12px color-mix(in srgb, var(--wb-highlight) 35%, transparent);
}

.wb-ss-cursor--anchor {
  display: inline;
  width: 0;
  margin: 0;
  padding: 0;
  overflow: hidden;
  opacity: 0;
  pointer-events: none;
}

.screensaver-wb-doodles {
  position: absolute;
  top: 0;
  bottom: 0;
  width: 72px;
  height: 100%;
  pointer-events: none;
  z-index: 4;
  overflow: visible;
}

.screensaver-wb-doodles--left {
  left: 0.15rem;
}

.screensaver-wb-doodles--right {
  right: 0.15rem;
}

.screensaver-wb-doodle-path {
  fill: none;
  stroke: color-mix(in srgb, var(--wb-ink-muted) 72%, var(--wb-ink));
  stroke-width: 1.65;
  stroke-linecap: round;
  stroke-linejoin: round;
  opacity: 0.42;
  filter: drop-shadow(0 1px 0 rgba(255, 255, 255, 0.15));
}

.screensaver-wb-scribbles {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 2;
  overflow: visible;
}

.screensaver-wb-scribbles .screensaver-wb-doodle-path {
  opacity: 0.28;
  stroke-width: 1.4;
}

.screensaver-whiteboard-wrap .wb-ss-write-target.is-wb-erasing {
  opacity: 0.82;
  filter: saturate(0.85);
}

[data-theme='dark'] .screensaver-wb-doodle-path {
  opacity: 0.34;
}

.screensaver-whiteboard-wrap .wb-ss-write-target.is-wb-striking::after {
  content: '';
  position: absolute;
  left: -0.05em;
  top: 50%;
  height: 0.14em;
  min-height: 2px;
  max-height: 4px;
  margin-top: -0.07em;
  background: var(--wb-ink);
  opacity: 0.78;
  transform: rotate(-2.5deg);
  border-radius: 2px;
  pointer-events: none;
  box-shadow: var(--wb-strike-glow);
  width: 0;
  animation: wb-ss-strike-grow 0.45s ease-out forwards;
}

@keyframes wb-ss-strike-grow {
  to {
    width: calc(100% + 0.1em);
  }
}

.screensaver-wb-marker {
  position: absolute;
  top: 0;
  left: 0;
  z-index: 9;
  width: 34px;
  height: 34px;
  pointer-events: none;
  transform: translate(30px, 48px);
  transition: none;
  filter: drop-shadow(0 3px 6px rgba(20, 16, 10, 0.28));
}

.screensaver-wb-marker.is-traveling {
  transition: transform 0.38s cubic-bezier(0.22, 1, 0.36, 1);
}

.screensaver-wb-marker-body {
  position: absolute;
  left: 4px;
  top: 2px;
  width: 14px;
  height: 24px;
  border-radius: 3px 3px 2px 2px;
  background: linear-gradient(180deg, #2a3140 0%, #161b24 100%);
  transform: rotate(-24deg);
  transform-origin: bottom center;
}

.screensaver-wb-marker-tip {
  position: absolute;
  left: 14px;
  top: 18px;
  width: 10px;
  height: 10px;
  border-radius: 1px 50% 50% 50%;
  background: linear-gradient(145deg, #ff6b4a 0%, #c62828 55%, #8b1a1a 100%);
  transform: rotate(-24deg);
  transform-origin: center center;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.25);
}

.screensaver-whiteboard-wrap.is-marker-writing .screensaver-wb-marker-tip {
  animation: wb-marker-scribble 0.11s ease-in-out infinite alternate;
}

.screensaver-whiteboard-wrap.is-marker-writing .screensaver-wb-marker {
  filter: drop-shadow(0 2px 5px rgba(198, 40, 40, 0.35));
}

@keyframes wb-marker-scribble {
  from {
    transform: rotate(-26deg) translate(0, 0);
  }
  to {
    transform: rotate(-21deg) translate(1px, -1px);
  }
}

.screensaver-stage:not(.is-live) .screensaver-card {
  opacity: 0 !important;
  visibility: hidden !important;
}

.screensaver-card:not(.is-ready) {
  opacity: 0 !important;
  visibility: hidden !important;
  pointer-events: none;
}

.screensaver-particles {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  opacity: 0;
  transition: opacity 500ms ease;
}

.screensaver-root.is-empty-artwork .screensaver-particles {
  opacity: 0.55;
}

.screensaver-empty {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  margin: 0;
  font-size: 1.05rem;
  font-weight: 500;
  letter-spacing: 0.02em;
  color: var(--text-muted);
  text-align: center;
  z-index: 4;
  opacity: 0;
  transition: opacity 600ms ease 200ms;
}

.screensaver-root.is-active .screensaver-empty.is-visible {
  opacity: 1;
}

.screensaver-card {
  position: absolute;
  left: 0;
  top: 0;
  transform-origin: center center;
  will-change: transform, opacity;
  pointer-events: none;
  filter: drop-shadow(0 12px 28px color-mix(in srgb, var(--text) 18%, transparent));
}

.screensaver-card-inner {
  position: relative;
  display: block;
  line-height: 0;
}

.screensaver-card-glow {
  position: absolute;
  inset: -18%;
  border-radius: 18%;
  opacity: 0;
  background: radial-gradient(
    ellipse at center,
    color-mix(in srgb, var(--primary) 28%, transparent) 0%,
    transparent 68%
  );
  pointer-events: none;
  transition: opacity 600ms ease;
}

.screensaver-card.is-featured .screensaver-card-glow {
  opacity: 1;
}

.screensaver-card img {
  display: block;
  height: var(--ss-card-height, 300px);
  width: auto;
  max-width: min(42vw, 320px);
  object-fit: contain;
  border-radius: 10px;
  user-select: none;
  -webkit-user-drag: none;
}

.screensaver-card[data-layer='deep'] {
  filter: drop-shadow(0 6px 16px color-mix(in srgb, var(--text) 8%, transparent));
}

.screensaver-card[data-layer='deep'] img {
  border-radius: 6px;
  max-width: min(26vw, 180px);
}

.screensaver-card[data-layer='bg'] {
  filter: drop-shadow(0 8px 18px color-mix(in srgb, var(--text) 10%, transparent));
}

.screensaver-card[data-layer='bg'] img {
  border-radius: 8px;
  max-width: min(36vw, 260px);
}

.screensaver-card[data-layer='fg'] img {
  border-radius: 12px;
}

.screensaver-card.is-featured img {
  max-width: min(52vw, 420px);
  border-radius: 14px;
  box-shadow:
    0 0 0 1px color-mix(in srgb, var(--primary) 35%, transparent),
    0 24px 60px color-mix(in srgb, var(--primary) 22%, transparent);
}

#app-shell.screensaver-app-dim {
  filter: blur(6px) saturate(0.92);
  transition: filter 800ms ease;
}

#app-shell.screensaver-app-dim.is-screensaver-exiting {
  filter: none;
  transition: filter 420ms ease;
}

@media (prefers-reduced-motion: reduce) {
  .screensaver-root,
  .screensaver-root.is-exiting,
  #app-shell.screensaver-app-dim,
  #app-shell.screensaver-app-dim.is-screensaver-exiting {
    transition-duration: 120ms;
  }

  .screensaver-stage {
    transition: none;
  }

  .screensaver-wb-marker.is-traveling {
    transition: none;
  }

  .screensaver-whiteboard-wrap .wb-ss-write-target.is-wb-striking::after {
    animation: none;
    width: calc(100% + 0.1em);
  }
}