/* ==========================================================================
   Knowledge Source — reader theme
   Dark-first, editorial serif headings, three-pane reading layout.
   ========================================================================== */

:root {
  --font-sans: "Inter", "Segoe UI Variable Text", "Segoe UI", system-ui, -apple-system, Roboto, Helvetica, Arial, sans-serif;
  --font-serif: "Iowan Old Style", "Charter", "Source Serif 4", "Source Serif Pro", Georgia, "Times New Roman", serif;
  --font-mono: ui-monospace, "Cascadia Code", "SF Mono", Consolas, "Liberation Mono", monospace;
  --r-sm: 8px;
  --r-md: 12px;
  --r-lg: 16px;
  --r-xl: 22px;
  --topbar-h: 58px;
  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
}

:root[data-theme="dark"] {
  --bg: #0b0d11;
  --bg-grad:
    radial-gradient(1100px 620px at 82% -12%, rgba(167, 139, 250, 0.11), transparent 62%),
    radial-gradient(900px 520px at -8% 104%, rgba(103, 232, 249, 0.055), transparent 60%);
  --panel: #11141a;
  --panel-2: #171b23;
  --panel-3: #1d222c;
  --border: #242a36;
  --border-soft: #1b212b;
  --text: #e7eaf0;
  --text-dim: #a4adbc;
  --text-faint: #707b8d;
  --accent: #a78bfa;
  --accent-2: #67e8f9;
  --accent-soft: rgba(167, 139, 250, 0.13);
  --accent-ink: #120e1f;
  --link: #9db9ff;
  --mark: rgba(250, 204, 21, 0.26);
  --shadow: 0 24px 60px -26px rgba(0, 0, 0, 0.85);
  --shadow-soft: 0 10px 26px -14px rgba(0, 0, 0, 0.7);
  --scrim: rgba(5, 8, 12, 0.62);
  --code-bg: #141821;
  --source: #f2a868;
  --source-soft: rgba(242, 168, 104, 0.13);
  --summary: #6dc4f4;
  --summary-soft: rgba(109, 196, 244, 0.13);
  --topic: #8ddc7c;
  --topic-soft: rgba(141, 220, 124, 0.13);
  --concept: #c4a4ff;
  --concept-soft: rgba(196, 164, 255, 0.13);
  --hub: #ff8fb1;
  --hub-soft: rgba(255, 143, 177, 0.13);
  --ok: #5ee0a0;
}

:root[data-theme="light"] {
  --bg: #f7f7fa;
  --bg-grad:
    radial-gradient(1000px 560px at 84% -10%, rgba(109, 79, 224, 0.07), transparent 62%),
    radial-gradient(760px 460px at -6% 104%, rgba(8, 145, 178, 0.05), transparent 60%);
  --panel: #ffffff;
  --panel-2: #f2f3f8;
  --panel-3: #e9ebf2;
  --border: #dfe2ea;
  --border-soft: #ebedf3;
  --text: #171a21;
  --text-dim: #545c6b;
  --text-faint: #838b9a;
  --accent: #6d4fe0;
  --accent-2: #0891b2;
  --accent-soft: rgba(109, 79, 224, 0.09);
  --accent-ink: #ffffff;
  --link: #2f5fd0;
  --mark: rgba(250, 204, 21, 0.42);
  --shadow: 0 26px 60px -28px rgba(22, 28, 44, 0.4);
  --shadow-soft: 0 10px 24px -16px rgba(22, 28, 44, 0.35);
  --scrim: rgba(28, 32, 46, 0.42);
  --code-bg: #f6f4ff;
  --source: #a15c12;
  --source-soft: rgba(161, 92, 18, 0.1);
  --summary: #1d6a94;
  --summary-soft: rgba(29, 106, 148, 0.1);
  --topic: #357d22;
  --topic-soft: rgba(53, 125, 34, 0.1);
  --concept: #6b3fc0;
  --concept-soft: rgba(107, 63, 192, 0.1);
  --hub: #a8285a;
  --hub-soft: rgba(168, 40, 90, 0.1);
  --ok: #128a58;
}

/* ---------------------------------------------------------------- base */

* {
  box-sizing: border-box;
}

html,
body {
  height: 100%;
  margin: 0;
}

body {
  background: var(--bg);
  background-image: var(--bg-grad);
  background-attachment: fixed;
  color: var(--text);
  font: 15px/1.6 var(--font-sans);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow: hidden;
}

a {
  color: var(--link);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

::selection {
  background: color-mix(in srgb, var(--accent) 32%, transparent);
}

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  border-radius: 4px;
}

button,
input {
  font: inherit;
  color: inherit;
}

button {
  cursor: pointer;
}

* {
  scrollbar-width: thin;
  scrollbar-color: var(--panel-3) transparent;
}

::-webkit-scrollbar {
  width: 10px;
  height: 10px;
}

::-webkit-scrollbar-thumb {
  background: var(--panel-3);
  border: 3px solid transparent;
  background-clip: padding-box;
  border-radius: 10px;
}

::-webkit-scrollbar-thumb:hover {
  background: color-mix(in srgb, var(--text-faint) 45%, var(--panel-3));
  background-clip: padding-box;
  border: 3px solid transparent;
}

::-webkit-scrollbar-track {
  background: transparent;
}

.i {
  width: 18px;
  height: 18px;
  flex: none;
  display: inline-block;
  vertical-align: -3px;
}

kbd {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 20px;
  height: 20px;
  padding: 0 5px;
  border: 1px solid var(--border);
  border-bottom-width: 2px;
  border-radius: 5px;
  background: var(--panel-2);
  color: var(--text-faint);
  font: 600 10.5px/1 var(--font-sans);
  letter-spacing: 0.02em;
}

.type-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  flex: none;
  background: var(--tc, var(--text-faint));
}

.t-source {
  --tc: var(--source);
  --tc-soft: var(--source-soft);
}

.t-summary {
  --tc: var(--summary);
  --tc-soft: var(--summary-soft);
}

.t-topic {
  --tc: var(--topic);
  --tc-soft: var(--topic-soft);
}

.t-concept {
  --tc: var(--concept);
  --tc-soft: var(--concept-soft);
}

.t-hub,
.t-report {
  --tc: var(--hub);
  --tc-soft: var(--hub-soft);
}

.t-doc,
.t-transcript,
.t-word_index {
  --tc: var(--text-faint);
  --tc-soft: var(--panel-2);
}

/* -------------------------------------------------------------- layout */

#shell {
  display: grid;
  grid-template-columns: 280px minmax(0, 1fr) 312px;
  height: 100vh;
}

#shell.no-inspector {
  grid-template-columns: 280px minmax(0, 1fr);
}

#shell.no-inspector #inspector {
  display: none;
}

#progress {
  position: fixed;
  inset: 0 0 auto 0;
  height: 2px;
  z-index: 80;
  pointer-events: none;
}

#progress-fill {
  display: block;
  height: 100%;
  transform: scaleX(0);
  transform-origin: 0 50%;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  transition: transform 0.08s linear;
}

/* ------------------------------------------------------------- sidebar */

#sidebar {
  display: flex;
  flex-direction: column;
  min-height: 0;
  border-right: 1px solid var(--border-soft);
  background: color-mix(in srgb, var(--panel) 62%, transparent);
  backdrop-filter: blur(16px);
}

.brand {
  display: flex;
  align-items: center;
  gap: 11px;
  padding: 18px 18px 14px;
  color: inherit;
}

.brand:hover {
  text-decoration: none;
}

.brand-mark {
  width: 36px;
  height: 36px;
  border-radius: 11px;
  flex: none;
  display: grid;
  place-items: center;
  color: var(--accent-ink);
  background: linear-gradient(135deg, var(--accent), #7c6cf7 46%, var(--accent-2));
  box-shadow: 0 10px 22px -10px color-mix(in srgb, var(--accent) 75%, transparent);
}

.brand-mark svg {
  width: 21px;
  height: 21px;
}

.brand-text strong {
  display: block;
  font-size: 14.5px;
  font-weight: 650;
  letter-spacing: -0.01em;
  line-height: 1.3;
}

.brand-text span {
  display: block;
  font-size: 11.5px;
  color: var(--text-faint);
}

.side-search {
  display: flex;
  align-items: center;
  gap: 9px;
  width: calc(100% - 28px);
  margin: 2px 14px 12px;
  padding: 8px 10px;
  border: 1px solid var(--border-soft);
  border-radius: 10px;
  background: var(--panel-2);
  color: var(--text-faint);
  font-size: 12.8px;
  text-align: left;
  transition: border-color 0.15s, color 0.15s;
}

.side-search:hover {
  border-color: color-mix(in srgb, var(--accent) 45%, var(--border));
  color: var(--text-dim);
}

.side-search .i {
  width: 15px;
  height: 15px;
}

.side-search .side-kbd {
  margin-left: auto;
}

#nav {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: 2px 10px 10px;
  border-bottom: 1px solid var(--border-soft);
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 6.5px 9px;
  border-radius: 9px;
  color: var(--text-dim);
  font-size: 13.4px;
  line-height: 1.4;
  transition: background 0.13s, color 0.13s;
}

.nav-item .i {
  width: 16px;
  height: 16px;
  color: var(--text-faint);
  transition: color 0.13s;
}

.nav-item:hover {
  background: var(--panel-2);
  color: var(--text);
  text-decoration: none;
}

.nav-item:hover .i {
  color: var(--text-dim);
}

.nav-item.active {
  background: var(--accent-soft);
  color: var(--accent);
  font-weight: 600;
}

.nav-item.active .i {
  color: var(--accent);
}

.nav-count {
  margin-left: auto;
  padding: 1px 7px;
  border-radius: 20px;
  background: var(--panel-2);
  color: var(--text-faint);
  font-size: 11px;
  font-weight: 500;
  font-variant-numeric: tabular-nums;
}

.nav-item.active .nav-count {
  background: color-mix(in srgb, var(--accent) 16%, transparent);
  color: var(--accent);
}

.side-scroll {
  flex: 1;
  min-height: 0;
  overflow-y: auto;
  padding: 2px 10px 16px;
}

.side-group h3 {
  margin: 16px 8px 6px;
  color: var(--text-faint);
  font-size: 10.5px;
  font-weight: 700;
  letter-spacing: 0.11em;
  text-transform: uppercase;
}

.side-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.side-list li {
  margin: 0;
}

.side-list a {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 5.5px 8px;
  border-radius: 7px;
  color: var(--text-dim);
  font-size: 12.8px;
  line-height: 1.45;
  transition: background 0.13s, color 0.13s;
}

.side-list a:hover {
  background: var(--panel-2);
  color: var(--text);
  text-decoration: none;
}

.side-title {
  flex: 1;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.side-count {
  color: var(--text-faint);
  font-size: 11px;
  font-variant-numeric: tabular-nums;
}

.side-sub {
  display: block;
  margin-top: -2px;
  padding: 0 8px 4px;
  color: var(--text-faint);
  font-size: 10.8px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.side-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  flex: none;
  background: var(--accent);
  opacity: 0.55;
}

#sync-info {
  padding: 11px 16px 14px;
  border-top: 1px solid var(--border-soft);
  color: var(--text-faint);
  font-size: 10.8px;
  line-height: 1.7;
}

#sync-info code {
  font-family: var(--font-mono);
  font-size: 10.5px;
  color: var(--text-dim);
}

.sync-line {
  display: flex;
  align-items: center;
  gap: 7px;
}

.sync-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  flex: none;
  background: var(--ok);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--ok) 18%, transparent);
}

/* -------------------------------------------------------------- topbar */

#main {
  display: flex;
  flex-direction: column;
  min-width: 0;
  min-height: 0;
}

#topbar {
  position: relative;
  z-index: 20;
  flex: none;
  height: var(--topbar-h);
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 0 18px;
  border-bottom: 1px solid var(--border-soft);
  background: color-mix(in srgb, var(--bg) 80%, transparent);
  backdrop-filter: blur(14px);
}

.icon-btn {
  width: 36px;
  height: 36px;
  flex: none;
  display: grid;
  place-items: center;
  border: 1px solid var(--border-soft);
  border-radius: 10px;
  background: transparent;
  color: var(--text-dim);
  transition: border-color 0.15s, color 0.15s, background 0.15s;
}

.icon-btn .i {
  width: 17px;
  height: 17px;
}

.icon-btn:hover {
  border-color: color-mix(in srgb, var(--accent) 50%, var(--border));
  background: var(--panel-2);
  color: var(--text);
}

#menu-toggle {
  display: none;
}

.search-wrap {
  position: relative;
  flex: 1;
  min-width: 0;
  max-width: 760px;
}

.search-icon {
  position: absolute;
  left: 12px;
  top: 50%;
  transform: translateY(-50%);
  width: 16px;
  height: 16px;
  color: var(--text-faint);
  pointer-events: none;
}

#search-input {
  width: 100%;
  height: 38px;
  padding: 0 46px 0 37px;
  border: 1px solid var(--border);
  border-radius: 11px;
  outline: none;
  background: var(--panel-2);
  color: var(--text);
  font-size: 13.4px;
  transition: border-color 0.15s, box-shadow 0.15s, background 0.15s;
}

#search-input::placeholder {
  color: var(--text-faint);
}

#search-input:focus {
  border-color: color-mix(in srgb, var(--accent) 60%, var(--border));
  background: var(--panel);
  box-shadow: 0 0 0 3px var(--accent-soft);
}

#search-input::-webkit-search-cancel-button {
  display: none;
}

.search-kbd {
  position: absolute;
  right: 10px;
  top: 50%;
  transform: translateY(-50%);
  pointer-events: none;
}

.suggest-panel {
  position: absolute;
  top: calc(100% + 8px);
  left: 0;
  right: 0;
  z-index: 40;
  display: none;
  max-height: min(68vh, 520px);
  overflow-y: auto;
  border: 1px solid var(--border);
  border-radius: 14px;
  background: var(--panel);
  box-shadow: var(--shadow);
}

.suggest-panel.open {
  display: block;
  animation: pop 0.13s var(--ease);
}

.sug-group {
  padding: 10px 13px 4px;
  color: var(--text-faint);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.11em;
  text-transform: uppercase;
}

.sug-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 13px;
  color: var(--text);
  font-size: 13.4px;
  cursor: pointer;
}

.sug-item.active,
.sug-item:hover {
  background: var(--accent-soft);
  text-decoration: none;
}

.sug-main {
  flex: 1;
  min-width: 0;
}

.sug-title {
  display: block;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.sug-meta {
  display: block;
  color: var(--text-faint);
  font-size: 11.4px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.sug-kind {
  flex: none;
  padding: 1px 6px;
  border: 1px solid var(--border);
  border-radius: 5px;
  color: var(--text-faint);
  font-size: 9.5px;
  font-weight: 600;
  letter-spacing: 0.07em;
  text-transform: uppercase;
}

.sug-foot {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 9px 13px;
  border-top: 1px solid var(--border-soft);
  background: var(--panel-2);
  color: var(--text-faint);
  font-size: 11.8px;
}

.sug-empty {
  padding: 20px 14px;
  color: var(--text-faint);
  font-size: 12.8px;
  text-align: center;
}

#content {
  flex: 1;
  min-height: 0;
  overflow-y: auto;
  scroll-behavior: smooth;
  scroll-padding-top: 16px;
}

.loading,
.empty {
  padding: 60px 20px;
  color: var(--text-faint);
  font-size: 13.5px;
  text-align: center;
}

.loading::before {
  content: "";
  display: block;
  width: 22px;
  height: 22px;
  margin: 0 auto 12px;
  border: 2px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

/* --------------------------------------------------------------- note */

.note-wrap {
  max-width: 828px;
  margin: 0 auto;
  padding: 30px 46px 110px;
}

.crumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
  margin-bottom: 18px;
  color: var(--text-faint);
  font-size: 12px;
}

.crumbs a {
  color: var(--text-faint);
}

.crumbs a:hover {
  color: var(--accent);
  text-decoration: none;
}

.crumbs .sep {
  opacity: 0.45;
}

.note-hero {
  position: relative;
  margin-bottom: 30px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--border-soft);
}

.eyebrow {
  display: flex;
  align-items: center;
  gap: 7px;
  margin-bottom: 10px;
  color: var(--text-faint);
  font-size: 10.5px;
  font-weight: 700;
  letter-spacing: 0.13em;
  text-transform: uppercase;
}

.eyebrow .type-dot {
  width: 6px;
  height: 6px;
}

.note-hero h1 {
  margin: 0 0 14px;
  font-family: var(--font-serif);
  font-size: clamp(28px, 3.1vw, 38px);
  font-weight: 600;
  line-height: 1.16;
  letter-spacing: -0.015em;
  text-wrap: balance;
}

.meta-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 15px;
  color: var(--text-dim);
  font-size: 12.8px;
}

.meta-item {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  min-width: 0;
}

.meta-item .i {
  width: 14px;
  height: 14px;
  color: var(--text-faint);
}

.meta-item a {
  color: inherit;
}

.meta-item a:hover {
  color: var(--accent);
  text-decoration: none;
}

.meta-item b {
  font-weight: 600;
  color: var(--text);
}

.badges {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 14px;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 3.5px 9px;
  border: 1px solid var(--border);
  border-radius: 20px;
  background: var(--panel-2);
  color: var(--text-dim);
  font-size: 10.5px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

a.badge:hover {
  border-color: color-mix(in srgb, var(--accent) 55%, var(--border));
  color: var(--accent);
  text-decoration: none;
}

.badge.type-source,
.badge.type-summary,
.badge.type-topic,
.badge.type-concept,
.badge.type-hub,
.badge.type-report {
  color: var(--tc);
  border-color: color-mix(in srgb, var(--tc) 34%, transparent);
  background: var(--tc-soft);
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 18px;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  height: 34px;
  padding: 0 13px;
  border: 1px solid var(--border);
  border-radius: 9px;
  background: var(--panel-2);
  color: var(--text-dim);
  font-size: 12.8px;
  font-weight: 500;
  line-height: 1;
  cursor: pointer;
  transition: border-color 0.15s, color 0.15s, background 0.15s, filter 0.15s;
}

.btn:hover {
  border-color: color-mix(in srgb, var(--accent) 55%, var(--border));
  background: var(--panel-3);
  color: var(--text);
  text-decoration: none;
}

.btn .i {
  width: 15px;
  height: 15px;
}

.btn.primary {
  border-color: transparent;
  background: linear-gradient(135deg, var(--accent), #8b6cf6);
  color: var(--accent-ink);
  font-weight: 600;
}

.btn.primary:hover {
  color: var(--accent-ink);
  filter: brightness(1.07);
}

.btn.ghost {
  background: transparent;
}

.btn kbd {
  height: 18px;
  min-width: 18px;
  border-color: color-mix(in srgb, currentColor 22%, transparent);
  background: color-mix(in srgb, currentColor 10%, transparent);
  color: inherit;
  font-size: 9.5px;
  opacity: 0.85;
}

.btn.primary kbd {
  border-color: rgba(0, 0, 0, 0.2);
  background: rgba(0, 0, 0, 0.16);
  color: inherit;
}

/* --------------------------------------------------------------- prose */

.note-body {
  min-width: 0;
}

.prose {
  max-width: 72ch;
  color: var(--text);
  font-size: 16.4px;
  line-height: 1.78;
}

.prose > *:first-child {
  margin-top: 0;
}

.prose > p:first-of-type {
  font-size: 17.4px;
  color: var(--text);
}

.prose h1,
.prose h2 {
  position: relative;
  font-family: var(--font-serif);
  font-weight: 600;
  letter-spacing: -0.01em;
}

.prose h1 {
  margin: 2.2em 0 0.7em;
  font-size: 28px;
  line-height: 1.25;
}

.prose h2 {
  margin: 2.1em 0 0.7em;
  padding-bottom: 0.36em;
  font-size: 23px;
  line-height: 1.3;
}

.prose h2::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 1px;
  background: linear-gradient(90deg, var(--border), transparent);
}

.prose h3 {
  position: relative;
  margin: 1.7em 0 0.45em;
  font-size: 17.5px;
  font-weight: 650;
  line-height: 1.4;
}

.prose h4 {
  margin: 1.6em 0 0.4em;
  color: var(--text-dim);
  font-size: 11.5px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.prose p {
  margin: 0 0 1.05em;
}

.prose ul,
.prose ol {
  margin: 0 0 1.1em;
  padding-left: 1.35em;
}

.prose li {
  margin: 0.28em 0;
}

.prose li::marker {
  color: var(--accent);
}

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

.prose a {
  color: var(--link);
  text-decoration: underline;
  text-decoration-color: color-mix(in srgb, var(--link) 38%, transparent);
  text-decoration-thickness: 1px;
  text-underline-offset: 2px;
}

.prose a:hover {
  text-decoration-color: var(--link);
}

.prose blockquote {
  margin: 1.4em 0;
  padding: 0.8em 1.2em;
  border-left: 3px solid var(--accent);
  border-radius: 0 10px 10px 0;
  background: linear-gradient(90deg, var(--accent-soft), transparent 72%);
  color: var(--text-dim);
}

.prose blockquote p:last-child {
  margin-bottom: 0;
}

.prose code {
  padding: 0.12em 0.38em;
  border: 1px solid var(--border-soft);
  border-radius: 6px;
  background: color-mix(in srgb, var(--accent) 8%, var(--panel-2));
  color: var(--text);
  font-family: var(--font-mono);
  font-size: 0.86em;
}

.prose pre {
  margin: 0;
  padding: 15px 17px;
  overflow-x: auto;
  border: 1px solid var(--border-soft);
  border-radius: 12px;
  background: var(--code-bg);
}

.prose pre code {
  padding: 0;
  border: none;
  background: none;
  font-size: 12.8px;
  line-height: 1.7;
}

.code-wrap {
  position: relative;
  margin: 1.3em 0;
}

.code-copy {
  position: absolute;
  top: 8px;
  right: 8px;
  display: grid;
  place-items: center;
  width: 28px;
  height: 28px;
  border: 1px solid var(--border);
  border-radius: 7px;
  background: var(--panel-2);
  color: var(--text-faint);
  opacity: 0;
  transition: opacity 0.15s, color 0.15s, border-color 0.15s;
}

.code-copy .i {
  width: 14px;
  height: 14px;
}

.code-wrap:hover .code-copy,
.code-copy:focus-visible {
  opacity: 1;
}

.code-copy:hover {
  color: var(--accent);
  border-color: var(--accent);
}

.table-scroll {
  margin: 1.4em 0;
  overflow-x: auto;
  border: 1px solid var(--border-soft);
  border-radius: 12px;
}

.prose table {
  width: 100%;
  margin: 0;
  border-collapse: collapse;
  font-size: 13.8px;
}

.prose th,
.prose td {
  padding: 9px 13px;
  border-top: 1px solid var(--border-soft);
  text-align: left;
  vertical-align: top;
}

.prose thead th {
  position: sticky;
  top: 0;
  border-top: none;
  background: var(--panel-2);
  color: var(--text-dim);
  font-size: 10.5px;
  font-weight: 700;
  letter-spacing: 0.09em;
  text-transform: uppercase;
}

.prose tbody tr:nth-child(even) {
  background: color-mix(in srgb, var(--panel-2) 45%, transparent);
}

.prose hr {
  margin: 2.2em 0;
  border: none;
  border-top: 1px solid var(--border-soft);
}

.prose img {
  max-width: 100%;
  border-radius: 12px;
}

.heading-anchor {
  position: absolute;
  left: -1.3em;
  top: 0.15em;
  display: inline-flex;
  width: 1em;
  height: 1em;
  color: var(--text-faint);
  opacity: 0;
  transition: opacity 0.15s, color 0.15s;
}

.heading-anchor .i {
  width: 0.72em;
  height: 0.72em;
}

.heading-anchor:hover {
  color: var(--accent);
  text-decoration: none;
}

h2:hover .heading-anchor,
h3:hover .heading-anchor {
  opacity: 0.8;
}

/* wikilinks */

a.wl {
  padding: 0 2px;
  border-bottom: 1px solid color-mix(in srgb, var(--tc, var(--accent)) 45%, transparent);
  border-radius: 4px 4px 0 0;
  background: color-mix(in srgb, var(--tc, var(--accent)) 9%, transparent);
  color: var(--text);
  text-decoration: none;
  transition: background 0.13s, border-color 0.13s;
}

a.wl::before {
  content: "";
  display: inline-block;
  width: 5px;
  height: 5px;
  margin-right: 5px;
  border-radius: 50%;
  background: var(--tc, var(--accent));
  vertical-align: 2px;
  opacity: 0.9;
}

a.wl:hover {
  border-bottom-color: var(--tc, var(--accent));
  background: color-mix(in srgb, var(--tc, var(--accent)) 16%, transparent);
  text-decoration: none;
}

.wl-dead {
  color: var(--text-faint);
  border-bottom: 1px dashed var(--text-faint);
}

.auto-marker {
  display: none;
}

/* ---------------------------------------------------------- transcript */

.transcript-toolbar {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 7px;
  margin-bottom: 12px;
  padding: 8px 10px;
  border: 1px solid var(--border-soft);
  border-radius: 12px;
  background: color-mix(in srgb, var(--bg) 86%, transparent);
  backdrop-filter: blur(10px);
}

.tb-label {
  margin-right: 4px;
  color: var(--text-faint);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.11em;
  text-transform: uppercase;
}

.tb-btn {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  height: 28px;
  padding: 0 10px;
  border: 1px solid var(--border-soft);
  border-radius: 7px;
  background: var(--panel-2);
  color: var(--text-dim);
  font-size: 11.8px;
  font-weight: 500;
}

.tb-btn:hover,
.tb-btn[aria-pressed="true"] {
  border-color: color-mix(in srgb, var(--accent) 50%, var(--border));
  color: var(--accent);
}

.tb-spacer {
  margin-left: auto;
}

.raw-text {
  margin: 0;
  padding: 22px 24px;
  border: 1px solid var(--border-soft);
  border-radius: 14px;
  background: var(--panel);
  color: var(--text-dim);
  font-family: var(--font-mono);
  font-size: var(--tsize, 14px);
  line-height: 1.8;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
}

.raw-text.no-wrap {
  white-space: pre;
  overflow-x: auto;
  overflow-wrap: normal;
}

/* ----------------------------------------------------- inline toc (mobile) */

.toc-inline {
  display: none;
  margin: 0 0 26px;
  overflow: hidden;
  border: 1px solid var(--border-soft);
  border-radius: 12px;
  background: var(--panel);
}

.toc-inline summary {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 11px 14px;
  color: var(--text-faint);
  font-size: 10.5px;
  font-weight: 700;
  letter-spacing: 0.11em;
  text-transform: uppercase;
  list-style: none;
  cursor: pointer;
}

.toc-inline summary::-webkit-details-marker {
  display: none;
}

.toc-inline summary::after {
  content: "+";
  margin-left: auto;
  font-size: 13px;
}

.toc-inline[open] summary::after {
  content: "−";
}

.toc-inline nav {
  display: flex;
  flex-direction: column;
  padding: 0 8px 10px;
}

.toc-inline .toc {
  border-left: none;
  margin-left: 0;
}

/* ----------------------------------------------------------- inspector */

#inspector {
  min-height: 0;
  overflow-y: auto;
  padding: 22px 18px 70px;
  border-left: 1px solid var(--border-soft);
  background: color-mix(in srgb, var(--panel) 46%, transparent);
  font-size: 13px;
}

.insp-section + .insp-section {
  margin-top: 22px;
  padding-top: 18px;
  border-top: 1px solid var(--border-soft);
}

.insp-title {
  display: flex;
  align-items: center;
  gap: 7px;
  margin: 0 0 9px;
  color: var(--text-faint);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.11em;
  text-transform: uppercase;
}

.insp-count {
  margin-left: auto;
  padding: 1px 7px;
  border-radius: 20px;
  background: var(--panel-2);
  color: var(--text-faint);
  font-size: 10.5px;
  font-weight: 600;
  letter-spacing: 0;
}

.toc {
  display: flex;
  flex-direction: column;
  gap: 1px;
  margin-left: 2px;
  border-left: 1px solid var(--border);
}

.toc a {
  position: relative;
  display: block;
  margin-left: -2px;
  padding: 5px 10px;
  border-left: 2px solid transparent;
  color: var(--text-dim);
  font-size: 12.6px;
  line-height: 1.42;
  transition: color 0.12s, background 0.12s, border-color 0.12s;
}

.toc a.lvl-3 {
  padding-left: 21px;
  color: var(--text-faint);
  font-size: 12px;
}

.toc a:hover {
  color: var(--text);
  text-decoration: none;
}

.toc a.active {
  border-left-color: var(--accent);
  background: linear-gradient(90deg, var(--accent-soft), transparent);
  color: var(--accent);
}

.insp-list {
  display: flex;
  flex-direction: column;
  gap: 1px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.insp-list a {
  display: block;
  overflow: hidden;
  padding: 5px 8px;
  border-radius: 7px;
  color: var(--text-dim);
  font-size: 12.4px;
  line-height: 1.45;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.insp-list a:hover {
  background: var(--panel-2);
  color: var(--text);
  text-decoration: none;
}

.kind {
  margin-right: 6px;
  color: var(--text-faint);
  font-size: 9px;
  font-weight: 600;
  letter-spacing: 0.07em;
  text-transform: uppercase;
}

.details-box {
  padding: 9px 10px;
  border: 1px solid var(--border-soft);
  border-radius: 9px;
  background: var(--panel-2);
  color: var(--text-faint);
  font-size: 11.2px;
  line-height: 1.75;
  overflow-wrap: anywhere;
}

.details-box code {
  color: var(--text-dim);
  font-family: var(--font-mono);
  font-size: 10.8px;
}

.details-box a {
  color: var(--text-dim);
}

.insp-empty {
  color: var(--text-faint);
  font-size: 11.8px;
  font-style: italic;
}

/* --------------------------------------------------------------- pages */

.page {
  max-width: 1060px;
  margin: 0 auto;
  padding: 34px 44px 100px;
}

.page-head {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: 18px;
  margin-bottom: 22px;
}

.page-head h1 {
  margin: 0 0 6px;
  font-family: var(--font-serif);
  font-size: clamp(28px, 3.4vw, 36px);
  font-weight: 600;
  line-height: 1.14;
  letter-spacing: -0.015em;
}

.lede {
  max-width: 64ch;
  margin: 0;
  color: var(--text-dim);
  font-size: 13.6px;
  line-height: 1.65;
}

.hero {
  position: relative;
  overflow: hidden;
  margin-bottom: 26px;
  padding: 36px 38px 34px;
  border: 1px solid var(--border);
  border-radius: var(--r-xl);
  background:
    radial-gradient(760px 250px at 0% 0%, var(--accent-soft), transparent 62%),
    var(--panel);
}

.hero::after {
  content: "";
  position: absolute;
  right: -100px;
  bottom: -150px;
  width: 380px;
  height: 380px;
  border-radius: 50%;
  background: radial-gradient(circle, color-mix(in srgb, var(--accent-2) 15%, transparent), transparent 68%);
  pointer-events: none;
}

.hero-eyebrow {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--text-faint);
  font-size: 10.5px;
  font-weight: 700;
  letter-spacing: 0.13em;
  text-transform: uppercase;
}

.hero-eyebrow .type-dot {
  width: 6px;
  height: 6px;
  background: var(--accent);
}

.hero h1 {
  max-width: 18ch;
  margin: 10px 0 12px;
  font-family: var(--font-serif);
  font-size: clamp(32px, 4vw, 46px);
  font-weight: 600;
  line-height: 1.08;
  letter-spacing: -0.02em;
  text-wrap: balance;
}

.hero p {
  max-width: 58ch;
  margin: 0;
  color: var(--text-dim);
  font-size: 14.2px;
  line-height: 1.7;
}

.hero p code {
  padding: 1px 5px;
  border: 1px solid var(--border-soft);
  border-radius: 5px;
  background: var(--panel-2);
  color: var(--text-dim);
  font-family: var(--font-mono);
  font-size: 12px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 9px;
  margin-top: 22px;
}

.stat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 12px;
  margin-bottom: 32px;
}

.stat {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 16px;
  border: 1px solid var(--border-soft);
  border-radius: 14px;
  background: var(--panel);
}

.stat-icon {
  width: 36px;
  height: 36px;
  flex: none;
  display: grid;
  place-items: center;
  border-radius: 10px;
  background: var(--accent-soft);
  color: var(--accent);
}

.stat-icon .i {
  width: 17px;
  height: 17px;
}

.stat b {
  display: block;
  font-size: 22px;
  font-weight: 650;
  line-height: 1.1;
  letter-spacing: -0.02em;
  font-variant-numeric: tabular-nums;
}

.stat span {
  display: block;
  margin-top: 2px;
  color: var(--text-faint);
  font-size: 10.5px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.section-title {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 36px 0 14px;
  color: var(--text-faint);
  font-size: 10.8px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.section-title::after {
  content: "";
  flex: 1;
  height: 1px;
  background: var(--border-soft);
}

.section-title .section-count {
  order: 3;
  color: var(--text-faint);
  font-weight: 600;
  letter-spacing: 0;
  text-transform: none;
  font-variant-numeric: tabular-nums;
}

.start-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(182px, 1fr));
  gap: 12px;
}

.start-card {
  display: flex;
  flex-direction: column;
  gap: 5px;
  padding: 18px;
  border: 1px solid var(--border-soft);
  border-radius: 14px;
  background: var(--panel);
  color: var(--text);
  transition: border-color 0.16s, background 0.16s, transform 0.16s;
}

.start-card:hover {
  transform: translateY(-2px);
  border-color: color-mix(in srgb, var(--accent) 45%, var(--border));
  background: var(--panel-2);
  text-decoration: none;
}

.start-icon {
  width: 34px;
  height: 34px;
  display: grid;
  place-items: center;
  margin-bottom: 4px;
  border-radius: 10px;
  background: var(--accent-soft);
  color: var(--accent);
}

.start-icon .i {
  width: 17px;
  height: 17px;
}

.start-card strong {
  font-size: 13.8px;
  font-weight: 600;
}

.start-card span {
  color: var(--text-faint);
  font-size: 11.8px;
  line-height: 1.5;
}

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(258px, 1fr));
  gap: 12px;
}

.card {
  --tc: var(--text-faint);
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 6px;
  overflow: hidden;
  padding: 15px 17px 14px;
  border: 1px solid var(--border-soft);
  border-radius: 14px;
  background: linear-gradient(180deg, var(--panel-2), var(--panel));
  color: var(--text);
  transition: transform 0.16s var(--ease), border-color 0.16s, box-shadow 0.16s;
}

.card::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 3px;
  background: var(--tc);
  opacity: 0.85;
}

.card:hover {
  transform: translateY(-2px);
  border-color: color-mix(in srgb, var(--tc) 42%, var(--border));
  box-shadow: var(--shadow-soft);
  text-decoration: none;
}

.card-top {
  display: flex;
  align-items: center;
  gap: 7px;
  color: var(--tc);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.card-go {
  display: inline-flex;
  margin-left: auto;
  color: var(--text-faint);
  transition: transform 0.16s, color 0.16s;
}

.card-go .i {
  width: 14px;
  height: 14px;
}

.card:hover .card-go {
  transform: translateX(2px);
  color: var(--tc);
}

.card strong {
  display: -webkit-box;
  overflow: hidden;
  font-size: 14.6px;
  font-weight: 600;
  line-height: 1.42;
  letter-spacing: -0.005em;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 3;
}

.card-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 3px 8px;
  color: var(--text-faint);
  font-size: 11.6px;
}

.card-excerpt {
  display: -webkit-box;
  overflow: hidden;
  margin-top: 2px;
  color: var(--text-dim);
  font-size: 12.5px;
  line-height: 1.55;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 3;
}

.card .thumb {
  width: calc(100% + 34px);
  max-width: none;
  margin: -15px -17px 8px;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  background: var(--panel-3);
  border-radius: 0;
}

.chips {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
}

.chip {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 6px 12px;
  border: 1px solid var(--border);
  border-radius: 20px;
  background: var(--panel-2);
  color: var(--text-dim);
  font-size: 12.6px;
}

.chip:hover {
  border-color: color-mix(in srgb, var(--accent) 55%, var(--border));
  background: var(--accent-soft);
  color: var(--accent);
  text-decoration: none;
}

.chip .count {
  color: var(--text-faint);
  font-variant-numeric: tabular-nums;
}

.topic-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(212px, 1fr));
  gap: 10px;
}

.topic-tile {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 13px 15px;
  border: 1px solid var(--border-soft);
  border-radius: 12px;
  background: var(--panel);
  color: var(--text);
  font-size: 13.4px;
  font-weight: 500;
  transition: border-color 0.15s, background 0.15s;
}

.topic-tile:hover {
  border-color: color-mix(in srgb, var(--accent) 50%, var(--border));
  background: var(--accent-soft);
  text-decoration: none;
}

.tt-count {
  padding: 2px 9px;
  border-radius: 20px;
  background: var(--panel-2);
  color: var(--text-faint);
  font-size: 11.4px;
  font-variant-numeric: tabular-nums;
}

.toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin-bottom: 20px;
}

.filter-wrap {
  position: relative;
  flex: 1;
  min-width: 220px;
  max-width: 380px;
}

.filter-wrap .i {
  position: absolute;
  left: 11px;
  top: 50%;
  transform: translateY(-50%);
  width: 15px;
  height: 15px;
  color: var(--text-faint);
  pointer-events: none;
}

.filter-input {
  width: 100%;
  height: 36px;
  padding: 0 12px 0 33px;
  border: 1px solid var(--border);
  border-radius: 10px;
  outline: none;
  background: var(--panel-2);
  color: var(--text);
  font-size: 13px;
}

.filter-input:focus {
  border-color: color-mix(in srgb, var(--accent) 55%, var(--border));
  box-shadow: 0 0 0 3px var(--accent-soft);
}

.toolbar-note {
  margin-left: auto;
  color: var(--text-faint);
  font-size: 12px;
  font-variant-numeric: tabular-nums;
}

.az-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 3px;
  margin-bottom: 18px;
}

.az-grid a,
.az-grid button {
  padding: 3px 8px;
  border: none;
  border-radius: 6px;
  background: none;
  color: var(--text-faint);
  font-size: 12px;
  font-weight: 600;
}

.az-grid a:hover,
.az-grid button:hover {
  background: var(--accent-soft);
  color: var(--accent);
  text-decoration: none;
}

.results {
  display: flex;
  flex-direction: column;
  gap: 10px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.result-card {
  --tc: var(--text-faint);
  display: block;
  padding: 15px 18px;
  border: 1px solid var(--border-soft);
  border-radius: 14px;
  background: var(--panel);
  color: var(--text);
  transition: border-color 0.15s, background 0.15s;
}

.result-card:hover {
  border-color: color-mix(in srgb, var(--accent) 45%, var(--border));
  background: var(--panel-2);
  text-decoration: none;
}

.result-head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
}

.result-head strong {
  font-size: 14.4px;
  font-weight: 600;
}

.result-kind {
  color: var(--tc);
  font-size: 9.5px;
  font-weight: 700;
  letter-spacing: 0.09em;
  text-transform: uppercase;
}

.result-sub {
  margin-top: 3px;
  color: var(--text-faint);
  font-size: 11.5px;
}

.result-snippet {
  margin-top: 8px;
  color: var(--text-dim);
  font-size: 13px;
  line-height: 1.6;
}

.result-snippet mark {
  padding: 0 2px;
  border-radius: 3px;
  background: var(--mark);
  color: inherit;
}

.prevnext {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  margin-top: 44px;
  padding-top: 22px;
  border-top: 1px solid var(--border-soft);
  font-size: 12.5px;
}

.prevnext a {
  display: flex;
  flex: 1;
  flex-direction: column;
  gap: 3px;
  max-width: 48%;
  padding: 11px 14px;
  border: 1px solid var(--border-soft);
  border-radius: 12px;
  background: var(--panel);
  color: var(--text-dim);
}

.prevnext a:hover {
  border-color: color-mix(in srgb, var(--accent) 45%, var(--border));
  color: var(--text);
  text-decoration: none;
}

.prevnext .next {
  align-items: flex-end;
  text-align: right;
}

.pn-label {
  color: var(--text-faint);
  font-size: 9.5px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.pn-count {
  align-self: center;
  color: var(--text-faint);
  font-size: 11.5px;
  font-variant-numeric: tabular-nums;
}

/* -------------------------------------------------------------- videos */

.video-hero {
  margin-bottom: 26px;
  overflow: hidden;
  border: 1px solid var(--border);
  border-radius: 18px;
  background: var(--panel);
}

.video-embed {
  position: relative;
  display: block;
  width: 100%;
  aspect-ratio: 16 / 9;
  padding: 0;
  border: none;
  background: var(--panel-3);
  cursor: pointer;
}

.video-embed img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.video-embed .play {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  width: 64px;
  height: 64px;
  margin: auto;
  border: 1px solid rgba(255, 255, 255, 0.28);
  border-radius: 50%;
  background: rgba(9, 11, 16, 0.7);
  color: #fff;
  backdrop-filter: blur(5px);
  transition: transform 0.18s, background 0.18s;
}

.video-embed .play .i {
  width: 26px;
  height: 26px;
  margin-left: 3px;
}

.video-embed:hover .play {
  transform: scale(1.06);
  background: rgba(9, 11, 16, 0.82);
}

.video-embed iframe {
  display: block;
  width: 100%;
  height: 100%;
  border: 0;
}

.video-body {
  padding: 20px 22px 22px;
}

.video-body h1 {
  margin: 0 0 10px;
  font-family: var(--font-serif);
  font-size: clamp(23px, 2.6vw, 30px);
  font-weight: 600;
  line-height: 1.2;
  letter-spacing: -0.012em;
}

.nowrap {
  white-space: nowrap;
}

/* --------------------------------------------------------------- graph */

#graph-wrap {
  position: relative;
  height: calc(100vh - var(--topbar-h));
  min-height: 420px;
  overflow: hidden;
}

#graph-canvas {
  display: block;
  width: 100%;
  height: 100%;
  cursor: grab;
  touch-action: none;
}

#graph-canvas.dragging {
  cursor: grabbing;
}

.graph-toolbar {
  position: absolute;
  top: 16px;
  right: 16px;
  z-index: 5;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 8px;
}

.graph-panel {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: 8px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: color-mix(in srgb, var(--panel) 88%, transparent);
  box-shadow: var(--shadow-soft);
  backdrop-filter: blur(10px);
}

.graph-title {
  padding: 2px 9px 5px;
  color: var(--text-faint);
  font-size: 9.5px;
  font-weight: 700;
  letter-spacing: 0.11em;
  text-transform: uppercase;
}

.gfilter {
  display: flex;
  align-items: center;
  gap: 8px;
  width: 100%;
  padding: 5px 9px;
  border: none;
  border-radius: 7px;
  background: none;
  color: var(--text-dim);
  font-size: 11.8px;
  font-weight: 500;
  text-align: left;
  transition: opacity 0.15s, background 0.15s;
}

.gfilter:hover {
  background: var(--panel-2);
}

.gfilter[aria-pressed="false"] {
  opacity: 0.34;
}

.gcount {
  margin-left: auto;
  color: var(--text-faint);
  font-size: 10.5px;
  font-variant-numeric: tabular-nums;
}

.gzoom {
  display: flex;
  gap: 4px;
}

.gzoom button {
  display: grid;
  place-items: center;
  width: 30px;
  height: 30px;
  border: 1px solid var(--border-soft);
  border-radius: 8px;
  background: var(--panel-2);
  color: var(--text-dim);
}

.gzoom button:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.gzoom .i {
  width: 14px;
  height: 14px;
}

.graph-hint {
  position: absolute;
  left: 16px;
  bottom: 16px;
  padding: 6px 10px;
  border: 1px solid var(--border-soft);
  border-radius: 8px;
  background: color-mix(in srgb, var(--panel) 78%, transparent);
  color: var(--text-faint);
  font-size: 11px;
  backdrop-filter: blur(8px);
}

#graph-tip {
  position: absolute;
  max-width: 260px;
  padding: 5px 9px;
  border: 1px solid var(--border);
  border-radius: 7px;
  background: var(--panel);
  box-shadow: var(--shadow-soft);
  color: var(--text);
  font-size: 11.5px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.12s;
}

/* -------------------------------------------------------------- palette */

.overlay {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: none;
  align-items: flex-start;
  justify-content: center;
  padding: 12vh 16px 16px;
  background: var(--scrim);
  backdrop-filter: blur(7px);
}

.overlay.open {
  display: flex;
}

.palette {
  width: min(660px, 100%);
  overflow: hidden;
  border: 1px solid var(--border);
  border-radius: 16px;
  background: var(--panel);
  box-shadow: 0 40px 120px -30px rgba(0, 0, 0, 0.8);
  animation: pop 0.14s var(--ease);
}

.palette-input {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 14px 16px;
  border-bottom: 1px solid var(--border-soft);
}

.palette-input .i {
  width: 17px;
  height: 17px;
  color: var(--text-faint);
}

.palette-input input {
  flex: 1;
  min-width: 0;
  border: none;
  outline: none;
  background: none;
  color: var(--text);
  font-size: 15px;
}

.palette-input input::placeholder {
  color: var(--text-faint);
}

.palette-results {
  max-height: min(54vh, 430px);
  overflow-y: auto;
  padding: 6px;
}

.palette-group-title {
  padding: 9px 10px 4px;
  color: var(--text-faint);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.11em;
  text-transform: uppercase;
}

.palette-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 10px;
  border-radius: 9px;
  color: var(--text);
  cursor: pointer;
}

.palette-item.active {
  background: var(--accent-soft);
}

.pi-icon {
  width: 30px;
  height: 30px;
  flex: none;
  display: grid;
  place-items: center;
  border-radius: 8px;
  background: var(--panel-2);
  color: var(--text-dim);
}

.pi-icon-wrap {
  display: flex;
  flex: none;
}

.pi-icon .i {
  width: 15px;
  height: 15px;
}

.palette-item.active .pi-icon {
  background: color-mix(in srgb, var(--accent) 18%, transparent);
  color: var(--accent);
}

.pi-main {
  flex: 1;
  min-width: 0;
}

.pi-title {
  display: block;
  overflow: hidden;
  font-size: 13.4px;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.pi-meta {
  display: block;
  overflow: hidden;
  color: var(--text-faint);
  font-size: 11.3px;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.pi-key {
  color: var(--text-faint);
  font-size: 9.5px;
  font-weight: 600;
  letter-spacing: 0.07em;
  text-transform: uppercase;
}

.palette-foot {
  display: flex;
  gap: 16px;
  padding: 9px 14px;
  border-top: 1px solid var(--border-soft);
  background: var(--panel-2);
  color: var(--text-faint);
  font-size: 11.3px;
}

.palette-foot span {
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.palette-empty {
  padding: 24px 14px;
  color: var(--text-faint);
  font-size: 12.8px;
  text-align: center;
}

/* ---------------------------------------------------------------- modal */

.modal {
  width: min(780px, calc(100vw - 32px));
  max-height: 82vh;
  padding: 0;
  border: 1px solid var(--border);
  border-radius: 16px;
  background: var(--panel);
  color: var(--text);
  box-shadow: var(--shadow);
}

.modal::backdrop {
  background: var(--scrim);
  backdrop-filter: blur(4px);
}

.modal-head {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 13px 16px;
  border-bottom: 1px solid var(--border-soft);
}

.modal-head h2 {
  flex: 1;
  margin: 0;
  font-size: 14.5px;
  font-weight: 600;
}

.modal-body {
  max-height: calc(82vh - 61px);
  overflow: auto;
  padding: 16px;
}

.raw-md {
  margin: 0;
  color: var(--text-dim);
  font: 12.5px/1.7 var(--font-mono);
  white-space: pre-wrap;
  overflow-wrap: anywhere;
}

.shortcut-list {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.shortcut-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 7px 8px;
  border-radius: 7px;
  font-size: 13px;
}

.shortcut-row:hover {
  background: var(--panel-2);
}

.shortcut-row span {
  color: var(--text-dim);
}

.shortcut-keys {
  display: flex;
  gap: 4px;
}

.shortcut-note {
  margin: 14px 0 0;
  color: var(--text-faint);
  font-size: 12px;
  line-height: 1.65;
}

/* ------------------------------------------------------- back to top, toast */

#to-top {
  position: fixed;
  right: 26px;
  bottom: 26px;
  z-index: 50;
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  border: 1px solid var(--border);
  border-radius: 50%;
  background: var(--panel);
  color: var(--text-dim);
  box-shadow: var(--shadow-soft);
  opacity: 0;
  pointer-events: none;
  transform: translateY(8px);
  transition: opacity 0.18s, transform 0.18s, color 0.18s, border-color 0.18s;
}

#to-top.show {
  opacity: 1;
  pointer-events: auto;
  transform: none;
}

#to-top:hover {
  border-color: var(--accent);
  color: var(--accent);
}

#toast {
  position: fixed;
  left: 50%;
  bottom: 28px;
  z-index: 120;
  padding: 9px 16px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--panel-3);
  color: var(--text);
  box-shadow: var(--shadow);
  font-size: 12.8px;
  opacity: 0;
  pointer-events: none;
  transform: translate(-50%, 14px);
  transition: opacity 0.18s, transform 0.18s;
}

#toast.show {
  opacity: 1;
  transform: translate(-50%, 0);
}

.noscript {
  padding: 40px;
  color: var(--text);
  text-align: center;
}

#scrim {
  display: none;
}

/* ----------------------------------------------------------- animations */

@keyframes pop {
  from {
    opacity: 0;
    transform: translateY(-5px) scale(0.995);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

/* ----------------------------------------------------------- responsive */

@media (max-width: 1360px) {
  #shell {
    grid-template-columns: 264px minmax(0, 1fr) 292px;
  }

  #shell.no-inspector {
    grid-template-columns: 264px minmax(0, 1fr);
  }
}

@media (max-width: 1180px) {
  #shell,
  #shell.no-inspector {
    grid-template-columns: 264px minmax(0, 1fr);
  }

  #inspector {
    display: none;
  }

  .toc-inline {
    display: block;
  }

  .note-wrap {
    max-width: 800px;
  }
}

@media (max-width: 960px) {
  #shell,
  #shell.no-inspector {
    grid-template-columns: minmax(0, 1fr);
  }

  #sidebar {
    position: fixed;
    inset: 0 auto 0 0;
    z-index: 70;
    width: min(300px, 86vw);
    border-right: 1px solid var(--border);
    background: var(--panel);
    box-shadow: 0 30px 80px rgba(0, 0, 0, 0.5);
    transform: translateX(-102%);
    transition: transform 0.24s var(--ease);
  }

  body.sidebar-open #sidebar {
    transform: none;
  }

  #scrim {
    display: block;
    position: fixed;
    inset: 0;
    z-index: 65;
    background: rgba(4, 6, 10, 0.5);
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s;
  }

  body.sidebar-open #scrim {
    opacity: 1;
    pointer-events: auto;
  }

  #menu-toggle {
    display: grid;
  }

  .note-wrap {
    padding: 26px 30px 100px;
  }

  .page {
    padding: 30px 28px 90px;
  }

  .hero {
    padding: 30px 28px;
  }
}

@media (max-width: 640px) {
  #topbar {
    gap: 8px;
    padding: 0 12px;
  }

  .search-kbd {
    display: none;
  }

  #search-input {
    padding-right: 14px;
    font-size: 13.8px;
  }

  #shortcuts-btn {
    display: none;
  }

  .note-wrap,
  .page {
    padding: 22px 17px 84px;
  }

  .note-hero h1 {
    font-size: 26px;
  }

  .hero {
    padding: 26px 22px;
    border-radius: 18px;
  }

  .hero h1 {
    font-size: 32px;
  }

  .stat-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

  .topic-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .prevnext {
    flex-direction: column;
  }

  .prevnext a {
    max-width: none;
  }

  .pn-count {
    align-self: flex-start;
    order: 3;
  }

  .prose {
    font-size: 16px;
  }

  .transcript-toolbar {
    gap: 5px;
  }

  .tb-spacer {
    margin-left: 0;
  }

  .raw-text {
    padding: 16px;
  }

  #to-top {
    right: 16px;
    bottom: 16px;
  }

  .overlay {
    padding: 7vh 10px 10px;
  }

  .palette-foot span:last-child {
    display: none;
  }

  .graph-toolbar {
    top: 10px;
    right: 10px;
  }

  .graph-hint {
    display: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
}

@media print {
  body {
    overflow: visible;
    background: #fff;
    color: #111;
  }

  #sidebar,
  #topbar,
  #inspector,
  #progress,
  #to-top,
  #toast,
  .graph-toolbar,
  .toc-inline,
  .actions,
  .prevnext {
    display: none !important;
  }

  #shell,
  #shell.no-inspector {
    display: block;
    height: auto;
  }

  #content {
    overflow: visible;
    height: auto;
  }

  .note-wrap {
    max-width: none;
    padding: 0;
  }

  .prose {
    max-width: none;
  }
}