.notes-main {
  width: min(calc(100% - 1.5rem), 1560px);
  padding-top: clamp(.75rem, 2vw, 1.5rem);
}

.knowledge-panel {
  min-width: 0;
}

.knowledge-explorer {
  display: grid;
  grid-template-columns: minmax(14rem, .72fr) minmax(0, 2.35fr) minmax(18rem, .9fr);
  gap: 1rem;
  align-items: stretch;
  min-height: calc(100dvh - 10rem);
}

.knowledge-directory,
.knowledge-stage,
.knowledge-rail > section {
  min-width: 0;
  border: 1px solid var(--line);
  border-radius: 22px;
  background: linear-gradient(145deg, rgb(238 240 246 / .035), rgb(238 240 246 / .012));
}

.knowledge-directory {
  padding: 1rem;
}

.knowledge-directory h1 {
  margin: .25rem 0 .65rem;
  font-size: clamp(1.55rem, 2.6vw, 2.25rem);
}

.knowledge-stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: .5rem;
  margin: 1rem 0;
}

.knowledge-stats div {
  padding: .7rem .55rem;
  border: 1px solid var(--line);
  border-radius: 14px;
}

.knowledge-stats dt,
.knowledge-stats dd {
  margin: 0;
}

.knowledge-stats dt {
  color: var(--muted);
  font: 500 .62rem/1.3 var(--font-mono);
}

.knowledge-stats dd {
  margin-top: .25rem;
  color: var(--text);
  font-size: 1.05rem;
}

.galaxy-directory {
  display: grid;
  gap: .5rem;
}

.galaxy-directory-node {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: .65rem;
  align-items: center;
  width: 100%;
  min-height: 44px;
  padding: .65rem .75rem .65rem 1.65rem;
  border: 1px solid var(--line);
  border-radius: 14px;
  color: var(--text);
  background: rgb(3 5 12 / .46);
  text-align: left;
  cursor: pointer;
}

.galaxy-directory-node::after {
  position: absolute;
  width: .45rem;
  height: .45rem;
  margin-left: -.95rem;
  border-radius: 50%;
  background: var(--galaxy-color);
  box-shadow: 0 0 14px var(--galaxy-color);
  content: "";
}

.knowledge-stage {
  display: flex;
  flex-direction: column;
}

.constellation {
  flex: 1;
  min-height: 32rem;
}

.knowledge-rail {
  position: static;
  align-content: start;
}

.knowledge-search-wrap {
  position: relative;
  z-index: 6;
  max-width: 48rem;
  margin-bottom: 1.25rem;
}

.knowledge-search-label,
.knowledge-eyebrow {
  display: block;
  margin-bottom: .55rem;
  color: var(--cyan);
  font: 600 .64rem/1.3 var(--font-mono);
  letter-spacing: .16em;
}

.knowledge-search {
  width: 100%;
  min-height: 48px;
  padding: .8rem 1rem;
  border: 1px solid var(--line);
  border-radius: 16px;
  outline: none;
  color: var(--text);
  background: rgb(3 5 12 / .72);
}

.knowledge-search:focus {
  border-color: var(--line-strong);
  box-shadow: var(--glow-cyan);
}

.knowledge-search-results {
  position: absolute;
  top: calc(100% + .5rem);
  right: 0;
  left: 0;
  max-height: 22rem;
  padding: .45rem;
  overflow: auto;
  border: 1px solid var(--line-strong);
  border-radius: 18px;
  background: rgb(5 9 18 / .98);
  box-shadow: var(--shadow-panel);
}

.knowledge-search-results button {
  width: 100%;
  min-height: 44px;
  padding: .65rem .75rem;
  border: 0;
  border-radius: 12px;
  color: var(--muted);
  background: transparent;
  text-align: left;
  cursor: pointer;
}

.knowledge-search-results button:hover,
.knowledge-search-results button:focus-visible {
  outline: none;
  color: var(--text);
  background: rgb(108 233 223 / .08);
}

.knowledge-search-results strong {
  color: var(--text);
  font-weight: 600;
}

.knowledge-search-results small {
  display: block;
  margin-top: .2rem;
  color: var(--muted);
  font: 500 .65rem/1.45 var(--font-mono);
}

.knowledge-notice {
  padding: 1rem;
  border: 1px dashed var(--line);
  border-radius: 16px;
  color: var(--muted);
}

.knowledge-stage {
  min-width: 0;
  padding: 1rem;
}

.knowledge-stage-head,
.path-level-head {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 1rem;
}

.knowledge-stage-head {
  padding: .35rem .35rem 1rem;
}

.knowledge-stage-head h3,
.path-level-head h3,
.knowledge-inspector h3 {
  margin: 0;
  font-size: 1.05rem;
}

.knowledge-layer-count,
.path-level-head span,
.orbit-controls {
  color: var(--muted);
  font: 500 .66rem/1.3 var(--font-mono);
}

.constellation {
  position: relative;
  overflow: hidden;
  border: 1px solid rgb(108 233 223 / .13);
  border-radius: 18px;
  background:
    radial-gradient(circle at center, rgb(108 233 223 / .07), transparent 54%),
    linear-gradient(rgb(108 233 223 / .035) 1px, transparent 1px),
    linear-gradient(90deg, rgb(108 233 223 / .035) 1px, transparent 1px),
    #040712;
  background-size: auto, 48px 48px, 48px 48px, auto;
}

.constellation::after {
  position: absolute;
  inset: 12%;
  border: 1px solid rgb(189 141 240 / .1);
  border-radius: 50%;
  content: "";
  pointer-events: none;
}

[data-knowledge-canvas],
.constellation-stars {
  position: absolute;
  z-index: 1;
  inset: 0;
  width: 100%;
  height: 100%;
}

.constellation-stars {
  z-index: 2;
}

.constellation-star {
  position: absolute;
  display: grid;
  width: clamp(3rem, 6vw, 4.25rem);
  height: clamp(3rem, 6vw, 4.25rem);
  padding: .25rem;
  place-items: center;
  border: 1px solid rgb(108 233 223 / .38);
  border-radius: 50%;
  color: var(--text);
  background: radial-gradient(circle at 38% 32%, rgb(238 240 246 / .18), rgb(108 233 223 / .09) 42%, rgb(3 5 12 / .96));
  box-shadow: 0 0 22px rgb(108 233 223 / .09), inset 0 0 18px rgb(108 233 223 / .08);
  cursor: pointer;
  transform: translate(-50%, -50%);
  transition: border-color .16s ease, box-shadow .16s ease, transform .16s ease;
}

.constellation-star:hover,
.constellation-star:focus-visible,
.constellation-star[aria-pressed="true"] {
  border-color: var(--cyan);
  outline: none;
  box-shadow: 0 0 28px rgb(108 233 223 / .2), inset 0 0 20px rgb(108 233 223 / .11);
  transform: translate(-50%, -50%) scale(1.045);
}

.constellation-star span {
  max-width: 5.5rem;
  overflow: hidden;
  font: 600 .58rem/1.15 var(--font-mono);
  text-align: center;
  text-overflow: ellipsis;
}

.knowledge-fallback {
  position: relative;
  z-index: 3;
  display: none;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: .75rem;
  padding: .85rem;
}

.knowledge-stage[data-mode="fallback"] [data-knowledge-canvas],
.knowledge-stage[data-mode="fallback"] .constellation-stars {
  display: none;
}

.knowledge-stage[data-mode="fallback"] .knowledge-fallback {
  display: grid;
}

.fallback-node,
.path-node {
  position: relative;
  min-height: 48px;
  border: 1px solid var(--line);
  border-radius: 14px;
  color: var(--text);
  background: rgb(238 240 246 / .025);
  cursor: pointer;
  text-align: left;
}

.fallback-node {
  display: grid;
  gap: .3rem;
  min-height: 6.5rem;
  padding: 1rem;
}

.fallback-node small,
.path-node small {
  color: var(--muted);
  font: 500 .64rem/1.35 var(--font-mono);
}

.fallback-node:hover,
.path-node:hover,
.galaxy-directory-node:hover,
.fallback-node[aria-pressed="true"],
.path-node[aria-pressed="true"],
.galaxy-directory-node[aria-pressed="true"] {
  border-color: var(--line-strong);
  background: rgb(108 233 223 / .065);
}

.fallback-node:focus-visible,
.path-node:focus-visible,
.galaxy-directory-node:focus-visible {
  outline: 2px solid currentColor;
  outline-offset: 2px;
}

.fallback-node[aria-pressed="true"]::before,
.path-node[aria-pressed="true"]::before,
.galaxy-directory-node[aria-pressed="true"]::before {
  position: absolute;
  width: .4rem;
  height: .75rem;
  border-right: 2px solid currentColor;
  border-bottom: 2px solid currentColor;
  content: "";
  transform: rotate(45deg);
}

.fallback-node[aria-pressed="true"]::before {
  top: .75rem;
  right: .9rem;
}

.path-node[aria-pressed="true"]::before {
  top: 50%;
  left: .75rem;
  transform: translateY(-60%) rotate(45deg);
}

.galaxy-directory-node[aria-pressed="true"]::before {
  top: 50%;
  left: .75rem;
  transform: translateY(-60%) rotate(45deg);
}

.orbit-controls {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: .8rem;
  padding-top: .85rem;
}

.orbit-controls[hidden] {
  display: none;
}

.orbit-controls button,
.knowledge-path button {
  min-height: 44px;
  padding: .55rem .75rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-pill);
  color: var(--muted);
  background: rgb(238 240 246 / .025);
  cursor: pointer;
}

.orbit-controls button:not(:disabled):hover,
.orbit-controls button:focus-visible,
.knowledge-path button:hover,
.knowledge-path button:focus-visible {
  border-color: var(--line-strong);
  color: var(--cyan);
  outline: none;
}

.orbit-controls button:disabled {
  cursor: default;
  opacity: .38;
}

.knowledge-rail {
  display: grid;
  gap: 1rem;
}

.knowledge-rail > section,
.knowledge-inspector {
  padding: 1rem;
}

.knowledge-path {
  display: flex;
  flex-wrap: wrap;
  gap: .45rem;
}

.knowledge-path button {
  min-height: 44px;
  padding: .45rem .65rem;
  font-size: .75rem;
}

.path-level-head {
  margin-bottom: .75rem;
}

.path-list {
  display: grid;
  gap: .45rem;
  max-height: 22rem;
  overflow: auto;
}

.path-node {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: .65rem;
  align-items: center;
  width: 100%;
  padding: .65rem .75rem .65rem 1.8rem;
}

.path-node span {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.knowledge-inspector {
  min-height: 12rem;
}

.knowledge-inspector h3 {
  margin: .3rem 0 .65rem;
}

.knowledge-inspector p {
  margin: 0 0 .75rem;
  color: var(--muted);
}

.knowledge-note-meta {
  display: flex;
  flex-wrap: wrap;
  gap: .4rem;
  margin-bottom: .9rem;
  color: var(--violet);
  font: 500 .64rem/1.35 var(--font-mono);
}

.knowledge-note-body {
  padding-top: .85rem;
  border-top: 1px solid var(--line);
  color: #d9deea;
  font-size: .9rem;
}

.knowledge-note-body h4,
.knowledge-note-body p,
.knowledge-note-body ul,
.knowledge-note-body pre {
  margin: 0 0 .75rem;
}

.knowledge-note-body pre {
  padding: .75rem;
  overflow: auto;
  border-radius: 12px;
  background: #03050c;
}

.knowledge-download {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  margin-top: .35rem;
  color: var(--cyan);
  font: 600 .68rem/1 var(--font-mono);
  text-decoration: none;
}

.knowledge-reader {
  width: min(100%, 820px);
  margin: 0 auto;
  padding: clamp(1rem, 3vw, 2rem);
  border: 1px solid var(--line);
  border-radius: 24px;
  background: rgb(5 9 18 / .82);
  box-shadow: var(--shadow-panel);
}

.knowledge-reader[hidden] {
  display: none;
}

.knowledge-reader-path,
.knowledge-reader-footer,
.knowledge-note-meta {
  display: flex;
  flex-wrap: wrap;
  gap: .55rem;
}

.knowledge-reader-head h1 {
  margin: 1rem 0 .65rem;
  font-size: clamp(2rem, 6vw, 4rem);
  line-height: 1.02;
}

.knowledge-reader-path > *,
.knowledge-reader-head h1,
.knowledge-reader-head p,
.knowledge-note-meta > *,
.knowledge-note-body :where(h1, h2, h3, h4, h5, h6, p, ul, ol, li, blockquote) {
  min-width: 0;
  overflow-wrap: anywhere;
}

.knowledge-note-body {
  min-width: 0;
  font-size: clamp(1rem, 1.5vw, 1.08rem);
  line-height: 1.8;
}

.knowledge-note-body pre,
.knowledge-note-body .markdown-table-scroll {
  max-width: 100%;
  overflow-x: auto;
}

.knowledge-note-body table {
  width: max-content;
  min-width: 100%;
  border-collapse: collapse;
}

.knowledge-note-body th,
.knowledge-note-body td {
  padding: .65rem .75rem;
  border: 1px solid var(--line);
  text-align: left;
}

.knowledge-note-body blockquote {
  margin: 1.25rem 0;
  padding-left: 1rem;
  border-left: 3px solid var(--violet);
  color: var(--muted);
}

.knowledge-note-body a {
  color: var(--cyan);
}

.knowledge-reader-back,
.knowledge-reader-retry {
  min-height: 44px;
}

.knowledge-noscript {
  margin-top: 1rem;
  padding: 1rem;
  border: 1px dashed var(--line-strong);
  border-radius: 18px;
  color: var(--muted);
}

.knowledge-noscript h3 {
  color: var(--text);
}

.knowledge-noscript a {
  color: var(--cyan);
}

@media (max-width: 1100px) {
  .knowledge-explorer {
    grid-template-columns: minmax(13rem, .75fr) minmax(0, 2fr);
  }

  .knowledge-rail {
    grid-column: 1 / -1;
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  }

  .knowledge-rail .knowledge-context {
    grid-column: 1 / -1;
  }
}

@media (max-width: 699px) {
  .notes-main {
    width: min(calc(100% - 1rem), 1560px);
  }

  .knowledge-explorer,
  .knowledge-rail {
    grid-template-columns: minmax(0, 1fr);
  }

  .knowledge-directory,
  .knowledge-stage,
  .knowledge-rail > section,
  .knowledge-reader {
    border-radius: 18px;
  }

  .constellation {
    min-height: 0;
    border: 0;
    background: transparent;
  }

  .constellation::after,
  [data-knowledge-canvas],
  .constellation-stars {
    display: none;
  }

  .knowledge-fallback {
    display: grid;
    grid-template-columns: 1fr;
    padding: 0;
  }

  .knowledge-reader {
    width: 100%;
    padding: 1rem;
  }

  .knowledge-reader-head h1 {
    overflow-wrap: anywhere;
  }

  .knowledge-search-results {
    position: static;
    margin-top: .45rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .constellation-star {
    transition: none;
  }
}