:root {
  color-scheme: dark;
  --background: #07100d;
  --surface: rgba(10, 22, 18, 0.9);
  --text: #f2f4ef;
  --muted: #9ba9a1;
  --line: rgba(232, 244, 237, 0.13);
  --accent: #d8ff62;
}

* {
  box-sizing: border-box;
  -webkit-tap-highlight-color: transparent;
}

html,
body {
  width: 100%;
  height: 100%;
  margin: 0;
  overflow: hidden;
  background: var(--background);
}

body {
  min-width: 320px;
  color: var(--text);
  font-family: Inter, "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
  -webkit-font-smoothing: antialiased;
}

.knowledge-map {
  position: relative;
  width: 100%;
  height: 100vh;
  height: 100svh;
  overflow: hidden;
  background:
    radial-gradient(circle at 42% 46%, rgba(39, 83, 67, 0.23), transparent 33%),
    var(--background);
  isolation: isolate;
}

.graph {
  position: absolute;
  inset: 0;
  z-index: 1;
  touch-action: none;
  user-select: none;
  -webkit-user-select: none;
}

.graph canvas {
  display: block;
  touch-action: none;
  outline: none;
  background: #07100d;
}

.edge-fade {
  position: absolute;
  inset: 0;
  z-index: 2;
  pointer-events: none;
  background:
    linear-gradient(90deg, rgba(7, 16, 13, 0.68), transparent 19%, transparent 72%, rgba(7, 16, 13, 0.42)),
    linear-gradient(0deg, rgba(7, 16, 13, 0.6), transparent 17%, transparent 85%, rgba(7, 16, 13, 0.5));
}

.knowledge-header {
  position: absolute;
  top: max(24px, env(safe-area-inset-top));
  left: max(26px, env(safe-area-inset-left));
  right: max(26px, env(safe-area-inset-right));
  z-index: 4;
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  row-gap: 10px;
  gap: 0;
  pointer-events: none;
}

.knowledge-mode {
  display: flex;
  align-items: center;
  gap: 13px;
}

.knowledge-overview-trigger {
  position: relative;
  padding: 7px 31px 7px 8px;
  margin: -7px 0 -7px -8px;
  border-radius: 13px;
  cursor: pointer;
  pointer-events: auto;
  transition: background-color 160ms ease;
}

.knowledge-overview-trigger:hover,
.knowledge-overview-trigger:focus-visible,
.knowledge-overview-trigger[aria-expanded="true"] {
  background: rgba(255, 255, 255, 0.055);
  outline: none;
}

.overview-chevron {
  position: absolute;
  top: 50%;
  right: 10px;
  width: 7px;
  height: 7px;
  margin-top: -5px;
  border-right: 1px solid rgba(216, 255, 98, 0.72);
  border-bottom: 1px solid rgba(216, 255, 98, 0.72);
  transform: rotate(45deg);
  transition: transform 180ms ease, margin-top 180ms ease;
}

.knowledge-overview-trigger[aria-expanded="true"] .overview-chevron {
  margin-top: -1px;
  transform: rotate(225deg);
}

.category-overview {
  position: absolute;
  top: 92px;
  left: max(26px, env(safe-area-inset-left));
  z-index: 6;
  width: min(370px, calc(100vw - 52px));
  padding: 18px;
  color: var(--text);
  background: rgba(9, 20, 16, 0.98);
  border: 1px solid var(--line);
  border-radius: 18px;
  box-shadow: 0 24px 70px rgba(0, 0, 0, 0.34);
  contain: layout paint style;
}

.category-overview[hidden],
.category-reset[hidden] {
  display: none;
}

.category-overview-heading {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  padding: 1px 2px 14px;
}

.category-overview-heading strong {
  display: block;
  font-size: 14px;
  letter-spacing: 0.04em;
}

.category-overview-heading p {
  margin: 5px 0 0;
  color: var(--muted);
  font-size: 10px;
}

.category-reset {
  flex: 0 0 auto;
  padding: 6px 9px;
  color: var(--accent);
  background: rgba(216, 255, 98, 0.07);
  border: 1px solid rgba(216, 255, 98, 0.18);
  border-radius: 8px;
  font: inherit;
  font-size: 10px;
  cursor: pointer;
}

.category-bars {
  display: grid;
  gap: 8px;
}

.category-bar {
  position: relative;
  width: 100%;
  min-height: 46px;
  padding: 0 13px;
  overflow: hidden;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 12px;
  color: #dce5df;
  background: rgba(255, 255, 255, 0.026);
  border: 1px solid rgba(255, 255, 255, 0.075);
  border-radius: 11px;
  font: inherit;
  text-align: left;
  cursor: pointer;
}

.category-bar::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  z-index: 0;
  width: var(--bar-size, 0%);
  background: linear-gradient(90deg, var(--bar-color), transparent);
  border-right: 1px solid var(--bar-color);
  opacity: 0.16;
  transition: width 260ms ease, opacity 160ms ease;
}

.category-bar > span {
  position: relative;
  z-index: 1;
}

.category-bar-label {
  overflow: hidden;
  font-size: 12px;
  font-weight: 620;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.category-bar-value {
  color: var(--bar-color);
  font-size: 11px;
  font-variant-numeric: tabular-nums;
}

.category-bar:hover,
.category-bar:focus-visible,
.category-bar.is-active {
  border-color: var(--bar-color);
  outline: none;
}

.category-bar.is-active::before {
  opacity: 0.27;
}

.category-bar.is-muted {
  opacity: 0.48;
}

.map-mark {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 7px rgba(216, 255, 98, 0.1), 0 0 28px rgba(216, 255, 98, 0.7);
}

.knowledge-header h1,
.knowledge-header p,
.detail-panel h2,
.detail-panel p {
  margin: 0;
}

.knowledge-header h1,
.locked-title {
  display: block;
  font-size: 18px;
  font-weight: 700;
  letter-spacing: 0.04em;
}

.knowledge-header p {
  margin-top: 3px;
  color: var(--muted);
  font-size: 11px;
  letter-spacing: 0.04em;
}

.knowledge-header strong {
  color: var(--text);
  font-weight: 650;
}

.knowledge-mode.is-locked {
  margin-left: 20px;
  padding-left: 20px;
  color: #758079;
  border-left: 1px solid var(--line);
  opacity: 0.66;
}

.locked-mark {
  position: relative;
  width: 10px;
  height: 8px;
  margin-top: 4px;
  border: 1px solid #758079;
  border-radius: 2px;
}

.locked-mark::before {
  content: "";
  position: absolute;
  top: -6px;
  left: 1px;
  width: 6px;
  height: 6px;
  border: 1px solid #758079;
  border-bottom: 0;
  border-radius: 5px 5px 0 0;
}

.knowledge-mode.is-locked p {
  color: #66716a;
}

.detail-panel {
  position: absolute;
  top: 50%;
  right: max(26px, env(safe-area-inset-right));
  z-index: 5;
  width: min(350px, calc(100vw - 52px));
  min-height: 230px;
  padding: 28px 27px 30px;
  opacity: 0;
  visibility: hidden;
  transform: translate(22px, -50%);
  color: var(--text);
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 20px;
  box-shadow: 0 28px 80px rgba(0, 0, 0, 0.32);
  backdrop-filter: blur(22px);
  -webkit-backdrop-filter: blur(22px);
  transition: opacity 180ms ease, transform 180ms ease, visibility 180ms ease;
  contain: layout paint style;
  pointer-events: none;
}

.detail-panel[hidden] {
  display: none;
}

.detail-panel.has-selection {
  opacity: 1;
  visibility: visible;
  transform: translate(0, -50%);
  pointer-events: auto;
}

.detail-category {
  display: flex;
  align-items: center;
  gap: 9px;
  color: var(--point-color, var(--accent));
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.1em;
}

.detail-category::before {
  content: "";
  width: 6px;
  height: 6px;
  flex: 0 0 auto;
  border-radius: 50%;
  background: currentColor;
  box-shadow: 0 0 14px currentColor;
}

.detail-panel h2 {
  margin-top: 18px;
  font-size: clamp(24px, 2.1vw, 31px);
  font-weight: 620;
  line-height: 1.22;
  letter-spacing: -0.025em;
}

.detail-summary {
  margin-top: 17px !important;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.8;
}

.materials-disabled {
  width: 100%;
  min-height: 46px;
  margin-top: 22px;
  padding: 0 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  color: #7f8983;
  background: rgba(255, 255, 255, 0.035);
  border: 1px solid rgba(255, 255, 255, 0.09);
  border-radius: 12px;
  font: inherit;
  font-size: 12px;
  cursor: not-allowed;
}

.materials-disabled small {
  margin-left: 4px;
  color: #66716a;
  font-size: 10px;
}

.button-lock {
  position: relative;
  width: 10px;
  height: 8px;
  border: 1px solid currentColor;
  border-radius: 2px;
}

.button-lock::before {
  content: "";
  position: absolute;
  top: -6px;
  left: 1px;
  width: 6px;
  height: 6px;
  border: 1px solid currentColor;
  border-bottom: 0;
  border-radius: 5px 5px 0 0;
}

.interaction-hint {
  position: absolute;
  left: max(26px, env(safe-area-inset-left));
  bottom: max(24px, env(safe-area-inset-bottom));
  z-index: 4;
  color: rgba(198, 210, 203, 0.68);
  font-size: 11px;
  letter-spacing: 0.04em;
  pointer-events: none;
}

.mobile-hint {
  display: none;
}

.webgl-fallback {
  position: absolute;
  left: 50%;
  top: 50%;
  z-index: 8;
  width: min(420px, calc(100% - 40px));
  padding: 20px;
  transform: translate(-50%, -50%);
  color: var(--muted);
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 16px;
  text-align: center;
}

noscript {
  position: fixed;
  inset: 0;
  z-index: 20;
  display: grid;
  place-items: center;
  padding: 24px;
  color: var(--muted);
  background: var(--background);
  text-align: center;
}

@media (max-width: 720px) {
  .edge-fade {
    background:
      linear-gradient(180deg, rgba(7, 16, 13, 0.55), transparent 18%, transparent 70%, rgba(7, 16, 13, 0.72)),
      linear-gradient(90deg, rgba(7, 16, 13, 0.25), transparent 30%, transparent 70%, rgba(7, 16, 13, 0.25));
  }

  .knowledge-header {
    top: max(18px, env(safe-area-inset-top));
    left: max(18px, env(safe-area-inset-left));
    right: 14px;
    width: calc(100% - 32px);
    display: flex;
    flex-wrap: nowrap;
    gap: 0;
    padding: 7px 2px 10px;
    overflow-x: auto;
    overflow-y: hidden;
    pointer-events: auto;
    touch-action: pan-x;
    overscroll-behavior-x: contain;
    scrollbar-width: none;
    -webkit-overflow-scrolling: touch;
  }

  .knowledge-header::-webkit-scrollbar {
    display: none;
  }

  .knowledge-header h1,
  .locked-title {
    font-size: 15px;
  }

  .knowledge-header p {
    font-size: 10px;
  }

  .knowledge-mode {
    flex: 0 0 auto;
    gap: 9px;
  }

  .knowledge-overview-trigger {
    padding-right: 29px;
  }

  .category-overview {
    top: max(86px, calc(env(safe-area-inset-top) + 68px));
    right: 12px;
    left: 12px;
    width: auto;
    padding: 15px;
    border-radius: 16px;
  }

  .category-bar {
    min-height: 43px;
  }

  .knowledge-mode.is-locked {
    margin-left: 14px;
    padding-left: 14px;
    border-top: 0;
    border-left: 1px solid var(--line);
  }

  .locked-title {
    overflow: hidden;
    font-size: 13px;
    text-overflow: ellipsis;
    white-space: nowrap;
  }

  .detail-panel {
    top: auto;
    right: 12px;
    bottom: max(12px, env(safe-area-inset-bottom));
    left: 12px;
    width: auto;
    min-height: 92px;
    max-height: min(38svh, 310px);
    padding: 19px 20px 21px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(16px);
    background: rgba(10, 22, 18, 0.98);
    border-radius: 18px;
    overflow: auto;
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
    transition: none;
    transform: translateZ(0);
  }

  .detail-panel.has-selection {
    min-height: 150px;
    opacity: 1;
    visibility: visible;
    transform: none;
  }

  .detail-panel h2 {
    font-size: 23px;
  }

  .interaction-hint {
    top: max(88px, calc(env(safe-area-inset-top) + 70px));
    left: max(18px, env(safe-area-inset-left));
    bottom: auto;
  }

  .desktop-hint {
    display: none;
  }

  .mobile-hint {
    display: inline;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
  }
}