*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --bg: #08080a;
  --accent: #8b5cf6;
  --accent-dim: rgba(139,92,246,0.15);
  --accent-glow: rgba(139,92,246,0.25);
  --text-primary: #eeeef8;
  --text-secondary: #a8a8be;
  --text-muted: #62627a;
  --node-border: rgba(255,255,255,0.30);
  --node-border-hover: rgba(139,92,246,0.70);
  --glass-bg: rgba(8,8,10,0.85);
  --glass-border: rgba(255,255,255,0.10);
  --edge-color: rgba(255,255,255,0.22);
  --edge-hover: rgba(139,92,246,0.65);
}

html, body {
  width: 100%;
  height: 100%;
  overflow: hidden;
  background: var(--bg);
  color: var(--text-primary);
  font-family: 'SF Pro Display', -apple-system, BlinkMacSystemFont, 'Helvetica Neue', sans-serif;
  font-weight: 300;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body::before {
  content: '';
  position: fixed;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  opacity: 0.025;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='1'/%3E%3C/svg%3E");
  background-repeat: repeat;
  background-size: 256px 256px;
}

#graphCanvas {
  position: fixed;
  inset: 0;
  z-index: 0;
  display: block;
}

/* Explore hint */
#exploreHint {
  position: fixed;
  top: 58%;
  left: 50%;
  transform: translateX(-50%);
  z-index: 5;
  font-size: 11px;
  font-weight: 300;
  letter-spacing: 0.12em;
  color: var(--text-muted);
  opacity: 0;
  transition: opacity 1s ease;
  pointer-events: none;
  white-space: nowrap;
}

#exploreHint.visible {
  opacity: 1;
}

/* About Card */

/* Detail Panel */
#detailPanel {
  position: fixed;
  right: 0;
  top: 0;
  height: 100vh;
  width: 380px;
  z-index: 20;
  background: var(--glass-bg);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border-left: 1px solid var(--glass-border);
  transform: translateX(100%);
  transition: transform 0.4s cubic-bezier(0.16,1,0.3,1);
  padding: 48px 32px 32px;
  overflow-y: auto;
}

#detailPanel.open {
  transform: translateX(0);
}

#detailPanel .close-btn {
  position: absolute;
  top: 20px;
  right: 20px;
  width: 32px;
  height: 32px;
  border: none;
  background: none;
  color: var(--text-secondary);
  font-size: 18px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 8px;
  transition: color 0.2s, background 0.2s;
}

#detailPanel .close-btn:hover {
  color: var(--text-primary);
  background: rgba(255,255,255,0.05);
}

#detailPanel .detail-title {
  font-size: 30px;
  font-weight: 200;
  letter-spacing: 0.08em;
  color: #f0f0f8;
  margin-bottom: 6px;
}

#detailPanel .detail-sublabel {
  font-size: 13px;
  font-weight: 300;
  letter-spacing: 0.06em;
  color: var(--text-secondary);
  margin-bottom: 4px;
}

#detailPanel .detail-hook {
  font-size: 14px;
  font-weight: 300;
  letter-spacing: 0.02em;
  line-height: 1.65;
  color: var(--text-primary);
  margin-bottom: 18px;
  font-style: italic;
}

#detailPanel .detail-body {
  font-size: 14px;
  font-weight: 300;
  line-height: 1.85;
  letter-spacing: 0.02em;
  color: var(--text-secondary);
  margin-bottom: 16px;
}

#detailPanel .detail-highlight {
  font-size: 13px;
  font-weight: 300;
  line-height: 1.75;
  letter-spacing: 0.02em;
  color: var(--text-muted);
  margin-bottom: 24px;
  padding: 12px 14px;
  background: rgba(255,255,255,0.02);
  border-left: 2px solid rgba(139,92,246,0.25);
  border-radius: 0 6px 6px 0;
}
#detailPanel #detailHighlight .detail-highlight + .detail-highlight {
  margin-top: 12px;
}
#detailPanel #detailHighlight .detail-highlight:last-child {
  margin-bottom: 24px;
}

#detailPanel .detail-type-pill {
  display: inline-flex;
  align-items: center;
  font-size: 10px;
  font-weight: 400;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 4px 12px;
  border-radius: 20px;
  border: 1px solid;
  margin-bottom: 14px;
}

#detailPanel .detail-divider {
  width: 100%;
  height: 1px;
  background: var(--glass-border);
  margin: 14px 0 18px;
}

#detailPanel .detail-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

#detailPanel .detail-tag {
  font-size: 11px;
  font-weight: 300;
  letter-spacing: 0.08em;
  border-radius: 20px;
  padding: 5px 14px;
  border: 1px solid;
}

#detailPanel .detail-section {
  margin-bottom: 20px;
}

#detailPanel .detail-section-label {
  font-size: 10px;
  font-weight: 400;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 10px;
}

#detailPanel .detail-connections {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

#detailPanel .detail-connection-chip {
  font-size: 12px;
  font-weight: 300;
  letter-spacing: 0.04em;
  color: var(--text-secondary);
  border: 1px solid var(--glass-border);
  border-radius: 8px;
  padding: 5px 12px;
  background: rgba(255,255,255,0.02);
  cursor: pointer;
  font-family: inherit;
  transition: color 0.2s, border-color 0.2s, background 0.2s;
}

#detailPanel .detail-connection-chip:hover {
  color: var(--text-primary);
  border-color: rgba(255,255,255,0.12);
  background: rgba(255,255,255,0.05);
}

#detailPanel .detail-link {
  font-size: 12px;
  font-weight: 300;
  letter-spacing: 0.06em;
  color: var(--accent);
  text-decoration: none;
  transition: opacity 0.3s;
  display: block;
  margin-bottom: 4px;
}

#detailPanel .detail-link:hover {
  opacity: 0.7;
}

/* Top bar pill buttons */
#topBar {
  position: fixed;
  top: 20px;
  right: 20px;
  z-index: 8;
  display: flex;
  flex-direction: row;
  align-items: center;
  gap: 8px;
  opacity: 0;
  animation: fadeInUp 0.8s cubic-bezier(0.16,1,0.3,1) 1.0s forwards;
}

.pill-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 7px 16px;
  border-radius: 20px;
  border: 1px solid var(--glass-border);
  background: var(--glass-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  color: var(--text-secondary);
  font-family: inherit;
  font-size: 13px;
  font-weight: 300;
  letter-spacing: 0.04em;
  cursor: pointer;
  transition: color 0.2s, border-color 0.2s, background 0.2s;
  white-space: nowrap;
}

.pill-btn:hover {
  color: var(--text-primary);
  border-color: rgba(255,255,255,0.14);
  background: rgba(255,255,255,0.06);
}

.pill-btn.active {
  color: var(--accent);
  border-color: rgba(139,92,246,0.5);
  background: rgba(139,92,246,0.08);
}

/* Settings dropdown panel */
#settingsPanel {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  width: 280px;
  background: rgba(12,12,18,0.92);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border: 1px solid var(--glass-border);
  border-radius: 12px;
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 14px;
  opacity: 0;
  transform: translateY(-8px);
  pointer-events: none;
  transition: opacity 0.2s ease, transform 0.2s ease;
  z-index: 9;
}

#settingsPanel.open {
  opacity: 1;
  transform: translateY(0);
  pointer-events: all;
}

.settings-section-label {
  font-size: 10px;
  font-weight: 400;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-secondary);
  margin-bottom: 6px;
}

/* Palette selector */
.palette-selector { position: relative; }
.palette-btn {
  width: 100%;
  display: flex; align-items: center; gap: 8px;
  padding: 6px 10px;
  border-radius: 8px;
  border: 1px solid var(--glass-border);
  background: rgba(255,255,255,0.03);
  color: var(--text-secondary);
  font-family: inherit; font-size: 12px;
  cursor: pointer;
  transition: border-color 0.15s;
}
.palette-btn:hover { border-color: rgba(255,255,255,0.14); }
.palette-dots { display: flex; gap: 3px; margin-left: auto; }
.palette-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  display: inline-block;
}
.palette-chevron { font-size: 10px; color: var(--text-secondary); }
.palette-dropdown {
  display: none;
  position: absolute; top: 100%; left: 0; right: 0;
  margin-top: 4px;
  background: rgba(12,12,16,0.95);
  border: 1px solid var(--glass-border);
  border-radius: 8px;
  padding: 4px;
  z-index: 20;
  backdrop-filter: blur(12px);
}
.palette-dropdown.open { display: block; }
.palette-option {
  display: flex; align-items: center; gap: 8px;
  padding: 6px 8px;
  border-radius: 6px;
  cursor: pointer;
  font-size: 12px;
  color: var(--text-secondary);
  border: none; background: none; width: 100%;
  font-family: inherit;
}
.palette-option:hover { background: rgba(255,255,255,0.06); }
.palette-option.active { color: var(--text-primary); }
.palette-option .palette-dots { margin-left: auto; }

/* Slider rows */
.settings-slider {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.settings-slider-row {
  display: flex;
  align-items: center;
  gap: 8px;
}

.settings-slider-row label {
  flex: 1;
  font-size: 12px;
  color: var(--text-secondary);
}

.settings-slider-row .slider-val {
  font-size: 11px;
  color: var(--text-secondary);
  min-width: 28px;
  text-align: right;
  font-variant-numeric: tabular-nums;
}

.settings-slider-row input[type="range"] {
  width: 100%;
  accent-color: var(--accent);
  cursor: pointer;
}

/* Settings hint badge + tooltip */
.settings-hint {
  display: inline-flex; align-items: center; justify-content: center;
  width: 14px; height: 14px;
  border-radius: 50%;
  border: 1px solid var(--glass-border);
  font-size: 9px;
  color: var(--text-secondary);
  cursor: help;
  margin-left: 4px;
  opacity: 0.6;
  transition: opacity 0.15s;
  position: relative;
}
.settings-hint:hover { opacity: 1; }
.settings-hint::after {
  content: attr(data-tip);
  position: absolute;
  bottom: calc(100% + 6px);
  right: -8px;
  width: max-content;
  max-width: 180px;
  padding: 5px 8px;
  border-radius: 6px;
  background: rgba(12,12,16,0.95);
  border: 1px solid var(--glass-border);
  color: var(--text-secondary);
  font-size: 10px;
  font-weight: 300;
  line-height: 1.4;
  letter-spacing: 0.02em;
  white-space: normal;
  pointer-events: none;
  opacity: 0;
  transform: translateY(2px);
  transition: opacity 0.15s, transform 0.15s;
  z-index: 30;
}
.settings-hint:hover::after {
  opacity: 1;
  transform: translateY(0);
}

/* Checkbox row */
.settings-check {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  color: var(--text-secondary);
  cursor: pointer;
}

.settings-check input[type="checkbox"] {
  accent-color: var(--accent);
  width: 14px;
  height: 14px;
  cursor: pointer;
}

/* Reset defaults button */
.settings-reset-btn {
  width: 100%;
  padding: 7px 0;
  border-radius: 8px;
  border: 1px solid var(--glass-border);
  background: rgba(255,255,255,0.03);
  color: var(--text-secondary);
  font-family: inherit;
  font-size: 12px;
  font-weight: 300;
  letter-spacing: 0.04em;
  cursor: pointer;
  transition: color 0.15s, background 0.15s, border-color 0.15s;
}

.settings-reset-btn:hover {
  color: var(--text-primary);
  border-color: rgba(255,255,255,0.14);
  background: rgba(255,255,255,0.05);
}

/* Settings bottom sheet (mobile) */
@media (max-width: 600px) {
  #settingsPanel {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    top: auto;
    width: 100%;
    max-height: 80vh;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
    border-radius: 16px 16px 0 0;
    padding: 8px 20px 28px;
    z-index: 101;
    opacity: 1;
    transform: translateY(100%);
    pointer-events: none;
    transition: transform 0.35s cubic-bezier(0.16,1,0.3,1);
  }

  #settingsPanel.open {
    transform: translateY(0);
    pointer-events: all;
    opacity: 1;
  }

  .settings-drag-handle {
    width: 36px;
    height: 4px;
    border-radius: 2px;
    background: rgba(255,255,255,0.2);
    margin: 4px auto 12px;
  }

  #settingsBackdrop {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.5);
    z-index: 100;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
  }

  #settingsBackdrop.visible {
    opacity: 1;
    pointer-events: all;
  }

  /* Touch targets */
  .settings-check { min-height: 44px; }
  .settings-check input[type="checkbox"] { width: 20px; height: 20px; }
  .settings-slider-row input[type="range"] { height: 44px; }
  .settings-reset-btn { min-height: 44px; }
  .palette-btn { min-height: 44px; }
  .palette-option { min-height: 44px; }
}

/* Chat Toggle */
/* Animations */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(12px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Selection */
::selection {
  background: rgba(139,92,246,0.3);
}

/* Admin Panel */
#adminPanel {
  position: fixed;
  top: 20px;
  left: 20px;
  width: 272px;
  z-index: 40;
  background: var(--glass-bg);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border: 1px solid var(--glass-border);
  border-radius: 14px;
  padding: 18px 18px 14px;
  display: none;
}

#adminPanel.open {
  display: block;
}

.admin-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 14px;
}

.admin-title {
  font-size: 11px;
  font-weight: 400;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.admin-nodes {
  display: flex;
  flex-direction: column;
  gap: 2px;
  margin-bottom: 12px;
}

.admin-node-row {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 7px 8px;
  border-radius: 8px;
  transition: background 0.15s;
}

.admin-node-row:hover {
  background: rgba(255,255,255,0.03);
}

.admin-node-label {
  flex: 1;
  font-size: 12px;
  font-weight: 300;
  letter-spacing: 0.03em;
  color: var(--text-secondary);
}

.admin-status-badge {
  font-size: 9px;
  font-weight: 400;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 2px 7px;
  border-radius: 10px;
  flex-shrink: 0;
}

.admin-status-badge.public {
  color: rgba(139,92,246,0.7);
  background: rgba(139,92,246,0.08);
  border: 1px solid rgba(139,92,246,0.15);
}

.admin-status-badge.draft {
  color: rgba(255,180,50,0.7);
  background: rgba(255,180,50,0.06);
  border: 1px solid rgba(255,180,50,0.15);
}

/* Toggle switch */
.vis-toggle {
  position: relative;
  width: 32px;
  height: 18px;
  flex-shrink: 0;
}

.vis-toggle input {
  opacity: 0;
  width: 0;
  height: 0;
  position: absolute;
}

.vis-track {
  position: absolute;
  inset: 0;
  border-radius: 9px;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.08);
  cursor: pointer;
  transition: background 0.2s, border-color 0.2s;
}

.vis-track::after {
  content: '';
  position: absolute;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: #444;
  top: 2px;
  left: 2px;
  transition: transform 0.2s, background 0.2s;
}

.vis-toggle input:checked + .vis-track {
  background: rgba(139,92,246,0.22);
  border-color: rgba(139,92,246,0.35);
}

.vis-toggle input:checked + .vis-track::after {
  transform: translateX(14px);
  background: #8b5cf6;
}

.admin-hint {
  font-size: 10px;
  font-weight: 300;
  letter-spacing: 0.04em;
  color: var(--text-muted);
  text-align: center;
  padding-top: 10px;
  border-top: 1px solid var(--glass-border);
}

/* Detail panel resize handle */
#detailResizeHandle {
  position: absolute;
  left: 0;
  top: 0;
  width: 6px;
  height: 100%;
  cursor: ew-resize;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: center;
}
#detailResizeHandle::after {
  content: '';
  display: block;
  width: 2px;
  height: 40px;
  background: var(--glass-border);
  border-radius: 2px;
  opacity: 0;
  transition: opacity 0.2s;
}
#detailPanel:hover #detailResizeHandle::after { opacity: 0.4; }
#detailResizeHandle:hover::after,
#detailResizeHandle.resizing::after { opacity: 1 !important; }

@media (max-width: 599px) {
#detailPanel { width: 100vw; }
#detailResizeHandle { display: none; }
  #resetBtn { width: 44px; height: 44px; font-size: 16px; }
  #detailPanel .close-btn { width: 44px; height: 44px; font-size: 22px; }
  #exploreHint { top: auto; bottom: 72px; }
  .pill-btn { min-height: 44px; }
}