// mantra · book-grade reader typography
// Fraunces (variable) body + IBM Plex Sans (labels) + IBM Plex Mono (non-Latin)
// Pergament-ink light · deep-ink dark · 62ch measure
// Headings H2 as margin-labels on wide, inline-before on mobile

// --- Fonts (self-hosted) ---------------------------------------------

@font-face {
  font-family: "Fraunces";
  src: url("/fonts/fraunces-variable.woff2") format("woff2-variations");
  font-weight: 100 900;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: "Fraunces";
  src: url("/fonts/fraunces-italic-variable.woff2") format("woff2-variations");
  font-weight: 100 900;
  font-style: italic;
  font-display: swap;
}
@font-face {
  font-family: "IBM Plex Sans";
  src: url("/fonts/plex-sans-variable.woff2") format("woff2-variations");
  font-weight: 100 900;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: "IBM Plex Mono";
  src: url("/fonts/plex-mono-variable.woff2") format("woff2");
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}

// --- Color tokens ----------------------------------------------------

:root {
  // Pergament (light). Warm paper + cooler ink for thermal tension:
  // the page is lit, the letters carry the shadow.
  --mantra-bg:       #fdfbf5;
  --mantra-bg-deep:  #f5f0e3;
  --mantra-fg:       #181c22;
  --mantra-muted:    #6e6f70;
  --mantra-faint:    #d6d3d0;
  --mantra-accent:   #5e4b3a;
  --mantra-hairline: rgba(24, 28, 34, 0.08);

  --mantra-measure: 62ch;
  --mantra-serif: "Fraunces", Georgia, "Times New Roman", serif;
  --mantra-sans:  "IBM Plex Sans", -apple-system, BlinkMacSystemFont, system-ui, sans-serif;
  --mantra-mono:  "IBM Plex Mono", ui-monospace, "SF Mono", Menlo, monospace;
}
@media (prefers-color-scheme: dark) {
  :root {
    --mantra-bg:       #0f1012;
    --mantra-fg:       #e7e3dd;
    --mantra-muted:    #8a857d;
    --mantra-faint:    #2a2826;
    --mantra-accent:   #c9b999;
    --mantra-hairline: rgba(231, 227, 221, 0.10);
  }
}

// --- Reset + base ----------------------------------------------------

* { box-sizing: border-box; }

::selection {
  background: var(--mantra-accent);
  color: var(--mantra-bg);
}

html, body {
  margin: 0;
  padding: 0;
  background: var(--mantra-bg);
  color: var(--mantra-fg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

body {
  font-family: var(--mantra-serif);
  font-size: 19px;
  line-height: 1.68;
  letter-spacing: 0.002em;
  // Variable-axis tuning: a warmer serif without eccentricity
  font-variation-settings: "opsz" 18, "SOFT" 30, "WONK" 0, "wght" 400;
  font-feature-settings: "kern" 1, "liga" 1, "calt" 1, "onum" 1;
}

a {
  color: inherit;
  text-decoration: none;
  border-bottom: 1px solid var(--mantra-hairline);
  transition: border-color 0.2s, color 0.2s;
}
a:hover { border-bottom-color: var(--mantra-accent); color: var(--mantra-accent); }

main {
  max-width: var(--mantra-measure);
  margin: 0 auto;
  padding: 6rem 1.5rem 8rem;
}
@media (max-width: 640px) {
  main { padding: 3rem 1.25rem 5rem; }
  body { font-size: 18px; line-height: 1.65; }
}

// --- Landing --------------------------------------------------------

.landing {
  max-width: 74ch;
}

// Silent opening — first screen, room for a breath before the catalog.
// Holds the hero title + the root question + a small scroll-hint, then
// the catalog unfolds below.
.landing-opening {
  min-height: calc(100vh - 4rem);
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 2rem 0 3rem;
  position: relative;
}
.landing-scroll-hint {
  position: absolute;
  bottom: 3vh;
  left: 0;
  font-family: var(--mantra-sans);
  font-size: 0.68rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--mantra-faint);
  font-variation-settings: "wght" 450;
}
.landing-catalog {
  padding-top: 2rem;
  position: relative;
}
.landing-catalog-label {
  font-family: var(--mantra-sans);
  font-variation-settings: "wght" 500;
  font-size: 0.68rem;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--mantra-muted);
  margin: 0 0 3rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--mantra-hairline);
}

.landing-head { margin-bottom: 5rem; }

.landing-title {
  font-family: var(--mantra-serif);
  font-variation-settings: "opsz" 144, "SOFT" 50, "WONK" 0, "wght" 320;
  font-size: clamp(3.5rem, 8.5vw, 5.5rem);
  font-weight: 320;
  line-height: 0.98;
  letter-spacing: -0.025em;
  margin: 0;
  color: var(--mantra-fg);
}

.landing-subtitle {
  font-family: var(--mantra-sans);
  font-variation-settings: "wght" 400;
  font-size: 0.78rem;
  color: var(--mantra-muted);
  text-transform: uppercase;
  letter-spacing: 0.22em;
  margin: 1.5rem 0 3.5rem;
}

.landing-question {
  font-family: var(--mantra-serif);
  font-style: italic;
  font-variation-settings: "opsz" 36, "SOFT" 50, "WONK" 0, "wght" 380;
  font-size: clamp(1.25rem, 2.4vw, 1.5rem);
  line-height: 1.4;
  color: var(--mantra-fg);
  margin: 0 0 4.5rem;
  max-width: 32ch;
  padding-left: 1.4rem;
  border-left: 2px solid var(--mantra-accent);
}

.landing-section-label {
  font-family: var(--mantra-sans);
  font-variation-settings: "wght" 500;
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.28em;
  color: var(--mantra-muted);
  margin: 0 0 1.5rem;
}

.landing-artifacts {
  margin-bottom: 6rem;
}

.artifacts-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem;
}
@media (max-width: 760px) {
  .artifacts-list { grid-template-columns: 1fr; }
}

.artifact-line a {
  display: block;
  border-bottom: none;
  line-height: 1.45;
  padding: 1.25rem 1.4rem;
  border: 1px solid var(--mantra-hairline);
  border-radius: 6px;
  background: color-mix(in srgb, var(--mantra-bg) 60%, transparent);
  transition: border-color 0.18s, transform 0.18s, background 0.18s;
}
.artifact-line a:hover {
  border-color: var(--mantra-accent);
  transform: translateY(-1px);
}
.artifact-title {
  display: block;
  font-family: var(--mantra-serif);
  font-variation-settings: "opsz" 36, "SOFT" 50, "WONK" 0, "wght" 480;
  font-size: 1.25rem;
  color: var(--mantra-fg);
  letter-spacing: -0.005em;
}
.artifact-sep { display: none; }
.artifact-subtitle {
  display: block;
  margin-top: 0.4rem;
  font-family: var(--mantra-serif);
  font-style: italic;
  color: var(--mantra-muted);
  font-size: 0.9rem;
  line-height: 1.4;
}
.artifact-line a:hover .artifact-title { color: var(--mantra-accent); }

.landing-cycle {
  margin-bottom: 5rem;
  padding-top: 2.5rem;
  border-top: 1px solid var(--mantra-hairline);

  &:first-of-type { border-top: none; padding-top: 0; }
}

.landing-cycle-head {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 1.8rem;
  align-items: start;
  margin-bottom: 3rem;
}

.landing-cycle-number {
  font-family: var(--mantra-serif);
  font-variation-settings: "opsz" 144, "SOFT" 50, "WONK" 0, "wght" 250;
  font-size: clamp(3.5rem, 6vw, 5rem);
  line-height: 0.9;
  letter-spacing: -0.04em;
  color: var(--mantra-faint);
  font-feature-settings: "onum" 1, "tnum" 0;
}

.landing-cycle-headings {
  padding-top: 0.4rem;
}

.landing-cycle-title {
  font-family: var(--mantra-serif);
  font-variation-settings: "opsz" 72, "SOFT" 50, "WONK" 0, "wght" 400;
  font-size: clamp(1.6rem, 3vw, 2.1rem);
  line-height: 1.1;
  letter-spacing: -0.01em;
  margin: 0;
  color: var(--mantra-fg);
}

.landing-cycle-subtitle {
  font-family: var(--mantra-sans);
  font-variation-settings: "wght" 400;
  font-size: 0.72rem;
  color: var(--mantra-muted);
  text-transform: uppercase;
  letter-spacing: 0.2em;
  margin: 0.5rem 0 0;
}

.landing-cycle-question {
  font-family: var(--mantra-serif);
  font-style: italic;
  font-variation-settings: "opsz" 32, "SOFT" 50, "WONK" 0, "wght" 400;
  font-size: clamp(1rem, 1.8vw, 1.15rem);
  line-height: 1.45;
  color: var(--mantra-muted);
  margin: 1rem 0 0;
  max-width: 42ch;
}

@media (max-width: 560px) {
  .landing-cycle-head {
    grid-template-columns: 1fr;
    gap: 0.8rem;
  }
}

.landing-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3.5rem;
}
@media (max-width: 760px) {
  .landing-grid { grid-template-columns: 1fr; gap: 3rem; }
}

.landing-col-label {
  font-family: var(--mantra-sans);
  font-variation-settings: "wght" 500;
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.28em;
  color: var(--mantra-muted);
  margin: 0 0 1.75rem;
}

.works-list, .themes-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.work-line {
  a {
    display: block;
    border-bottom: none;
    line-height: 1.35;
  }
  a:hover { color: var(--mantra-fg); }
  a:hover .work-author { color: var(--mantra-accent); }
}
.work-author {
  font-family: var(--mantra-serif);
  font-variation-settings: "opsz" 18, "SOFT" 30, "WONK" 0, "wght" 500;
  color: var(--mantra-fg);
}
.work-sep { color: var(--mantra-faint); }
.work-title {
  font-style: italic;
  color: var(--mantra-muted);
}
.work-claim {
  font-family: var(--mantra-serif);
  font-variation-settings: "opsz" 14, "SOFT" 30, "WONK" 0, "wght" 380;
  font-size: 0.88rem;
  color: var(--mantra-muted);
  line-height: 1.5;
  margin-top: 0.3rem;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
  text-overflow: ellipsis;
}
.work-claim em { font-style: italic; }
.work-claim strong { font-variation-settings: "opsz" 14, "SOFT" 30, "WONK" 0, "wght" 600; }

.theme-line a {
  display: block;
  border-bottom: none;
}
.theme-title {
  font-family: var(--mantra-serif);
  font-variation-settings: "opsz" 18, "SOFT" 30, "WONK" 0, "wght" 500;
}
.theme-count {
  font-family: var(--mantra-sans);
  color: var(--mantra-muted);
  font-size: 0.82rem;
  letter-spacing: 0.02em;
}

// --- Source page ----------------------------------------------------

.source-breadcrumb {
  font-family: var(--mantra-sans);
  font-variation-settings: "wght" 450;
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.22em;
  color: var(--mantra-muted);
  margin-bottom: 3rem;
  .sep { margin: 0 0.5em; color: var(--mantra-faint); }
  a { color: var(--mantra-muted); border-bottom: none; }
  a:hover { color: var(--mantra-fg); }
}

// --- Source hero (title page, shown before body) --------------------

.source-hero {
  margin: 4.5rem 0 5rem;
  max-width: var(--mantra-measure);
}

.source-hero-eyebrow {
  font-family: var(--mantra-sans);
  font-variation-settings: "wght" 500;
  font-size: 0.72rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--mantra-muted);
  margin-bottom: 1.5rem;
}

.source-hero-title {
  font-family: var(--mantra-serif);
  font-variation-settings: "opsz" 144, "SOFT" 50, "WONK" 0, "wght" 360;
  font-size: clamp(2.3rem, 5.5vw, 3.6rem);
  line-height: 1.03;
  letter-spacing: -0.018em;
  margin: 0 0 2.2rem;
  color: var(--mantra-fg);
}

.source-hero-claim {
  font-family: var(--mantra-serif);
  font-style: italic;
  font-variation-settings: "opsz" 36, "SOFT" 50, "WONK" 0, "wght" 400;
  font-size: clamp(1.15rem, 2.2vw, 1.35rem);
  line-height: 1.5;
  color: var(--mantra-fg);
  margin: 0 0 2rem;
  padding-left: 1.4rem;
  border-left: 2px solid var(--mantra-accent);
  max-width: 54ch;
  display: -webkit-box;
  -webkit-line-clamp: 5;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.source-hero-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.5rem;
  font-family: var(--mantra-sans);
  font-size: 0.78rem;
  color: var(--mantra-muted);
  letter-spacing: 0.02em;
}

.source-hero-confidence {
  font-variation-settings: "wght" 500;

  &[data-level="high"]   { color: var(--mantra-accent); }
  &[data-level="medium"] { color: var(--mantra-muted); }
  &[data-level="low"]    { color: var(--mantra-faint); }
}

.source-hero-sep { color: var(--mantra-faint); }

.source-hero-tags {
  font-family: var(--mantra-mono);
  font-size: 0.72rem;
  color: var(--mantra-faint);
  letter-spacing: 0.04em;
}

.source-hero-rule {
  height: 1px;
  background: var(--mantra-hairline);
  width: 6rem;
  margin-top: 2.5rem;
}

// --- Source body ----------------------------------------------------

.source-body {
  // Positioning anchor for H2 margin-labels below.
  position: relative;

  // The first H1 is duplicated in the hero; hide here to avoid
  // repeating the author/title at the top of the body.
  > h1:first-child { display: none; }

  // H1 is the work title
  h1 {
    font-family: var(--mantra-serif);
    font-variation-settings: "opsz" 96, "SOFT" 50, "WONK" 0, "wght" 380;
    font-size: clamp(2rem, 5vw, 2.75rem);
    line-height: 1.1;
    letter-spacing: -0.012em;
    margin: 0 0 2.5rem;
    color: var(--mantra-fg);
  }

  // H2 as margin-label on wide screens (pulled into left margin)
  h2 {
    font-family: var(--mantra-sans);
    font-variation-settings: "wght" 500;
    font-size: 0.72rem;
    text-transform: uppercase;
    letter-spacing: 0.24em;
    color: var(--mantra-muted);
    font-weight: 500;
    margin: 3.5rem 0 1.25rem;
    position: relative;
  }
  @media (min-width: 1300px) {
    h2 {
      position: absolute;
      // Pull the label into the left gutter, outside the article box.
      // Column is 20ch wide (fits long compound labels like
      // «интеллектуальная родословная» in two lines) + 3rem breathing
      // room before the paragraph column.
      left: calc(-20ch - 3rem);
      margin: 0;
      padding-top: 0.55rem;
      width: 20ch;
      text-align: right;
      letter-spacing: 0.18em;
      line-height: 1.35;
    }
    h2 + * { margin-top: 3rem; }
  }

  h3 {
    font-family: var(--mantra-serif);
    font-variation-settings: "opsz" 24, "SOFT" 40, "WONK" 0, "wght" 520;
    font-size: 1.12rem;
    letter-spacing: -0.005em;
    margin: 2.2rem 0 0.8rem;
    color: var(--mantra-fg);
  }

  p {
    margin: 0 0 1.35rem;
    hyphens: auto;
    -webkit-hyphens: auto;
  }

  em, i {
    font-style: italic;
    font-variation-settings: "opsz" 18, "SOFT" 40, "WONK" 0, "wght" 400;
  }
  strong, b {
    font-variation-settings: "opsz" 18, "SOFT" 30, "WONK" 0, "wght" 600;
  }

  a {
    border-bottom: 1px solid var(--mantra-muted);
  }
  a:hover { border-bottom-color: var(--mantra-accent); }

  blockquote {
    border-left: 2px solid var(--mantra-accent);
    margin: 2rem 0 2rem -0.5rem;
    padding: 0.3rem 0 0.3rem 1.5rem;
    font-style: italic;
    font-variation-settings: "opsz" 17, "SOFT" 50, "WONK" 0, "wght" 400;
    color: var(--mantra-fg);
    font-size: 0.98rem;
    p { margin-bottom: 0.6rem; &:last-child { margin-bottom: 0; } }
  }

  code {
    font-family: var(--mantra-mono);
    font-size: 0.85em;
    background: var(--mantra-faint);
    padding: 0.1rem 0.35rem;
    border-radius: 3px;
  }

  pre {
    font-family: var(--mantra-mono);
    font-size: 0.82rem;
    background: var(--mantra-faint);
    padding: 1rem 1.25rem;
    border-radius: 6px;
    overflow-x: auto;
    margin: 1.75rem 0;
    line-height: 1.5;
    code { background: none; padding: 0; font-size: inherit; }
  }

  ul, ol {
    margin: 0 0 1.35rem;
    padding-left: 1.5rem;
  }
  li { margin: 0.3rem 0; }

  hr {
    border: none;
    border-top: 1px solid var(--mantra-hairline);
    margin: 3rem auto;
    width: 12ch;
  }

  table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.9rem;
    margin: 1.5rem 0;
    th, td {
      padding: 0.5rem 0.8rem;
      border-bottom: 1px solid var(--mantra-hairline);
      text-align: left;
      vertical-align: top;
    }
    th {
      font-family: var(--mantra-sans);
      font-variation-settings: "wght" 500;
      font-size: 0.75rem;
      text-transform: uppercase;
      letter-spacing: 0.15em;
      color: var(--mantra-muted);
    }
  }

  // Paragraph click-target + margin dot (M.3 margin-layer).
  // - Empty paragraphs: faint dot appears only on hover (affordance).
  // - Annotated paragraphs (.has-notes): dot is always visible in the
  //   accent colour, so readers see at a glance where the marginalia is.
  p[data-para-id] {
    position: relative;
    cursor: pointer;
  }
  @media (min-width: 900px) {
    p[data-para-id]::before {
      content: "";
      position: absolute;
      left: -1.25rem;
      top: 0.75em;
      width: 5px;
      height: 5px;
      border-radius: 50%;
      background: var(--mantra-faint);
      opacity: 0;
      transition: opacity 0.2s, background 0.2s, transform 0.2s;
    }
    p[data-para-id]:hover::before {
      opacity: 1;
      background: var(--mantra-muted);
    }
    p[data-para-id].has-notes::before {
      opacity: 1;
      background: var(--mantra-accent);
    }
    p[data-para-id].has-notes:hover::before {
      transform: scale(1.3);
    }
  }
}

.source-foot {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 1rem;
  margin-top: 5rem;
  padding-top: 2rem;
  border-top: 1px solid var(--mantra-hairline);
  font-family: var(--mantra-sans);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--mantra-muted);

  a { border-bottom: none; color: var(--mantra-muted); }
  a:hover { color: var(--mantra-fg); }

  .nav-prev { justify-self: start; }
  .nav-home { justify-self: center; }
  .nav-next { justify-self: end; }
}

// --- Theme page -----------------------------------------------------

.theme-h1 {
  font-family: var(--mantra-serif);
  font-variation-settings: "opsz" 72, "SOFT" 50, "WONK" 0, "wght" 380;
  font-size: clamp(2rem, 4.5vw, 2.75rem);
  line-height: 1.1;
  letter-spacing: -0.01em;
  margin: 0 0 2rem;
  color: var(--mantra-fg);
}

.theme-desc {
  margin-bottom: 3rem;
  p { color: var(--mantra-fg); margin-bottom: 1.2rem; }
}

.theme-contributing { margin-top: 3rem; }

// --- Misc -----------------------------------------------------------

// --- Language toggle (top-right) ---
.lang-toggle {
  position: fixed;
  top: 1.25rem;
  right: 1.5rem;
  z-index: 10;
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-family: var(--mantra-sans);
  font-variation-settings: "wght" 450;
  font-size: 0.78rem;
  letter-spacing: 0.1em;

  a {
    color: var(--mantra-faint);
    text-decoration: none;
    border-bottom: none;
    padding: 0.1rem 0.1rem;
    transition: color 0.15s;
  }
  a:hover { color: var(--mantra-fg); }
  a.lang-active {
    color: var(--mantra-fg);
    font-variation-settings: "wght" 600;
  }
  .lang-dot {
    color: var(--mantra-faint);
  }
}
@media (max-width: 640px) {
  .lang-toggle { top: 1rem; right: 1rem; font-size: 0.72rem; }
}

.err {
  color: #b45309;
  font-family: var(--mantra-mono);
  font-size: 0.88rem;
}
.not-found { padding: 2rem 0; }
.back-link {
  color: var(--mantra-muted);
  font-family: var(--mantra-sans);
  font-size: 0.85rem;
  border-bottom: none;
}

// --- Inspector (v0.3 persistent right panel) ------------------------

// Reader frame: article centered in remaining space, inspector fixed right.
// On wide screens we reserve the inspector's width via padding-right on
// the frame — this keeps `main { margin: 0 auto }` genuinely centered
// in the visible reading area instead of being pushed sideways.
.reader-frame {
  position: relative;
  transition: padding-right 0.2s;
}

@media (min-width: 1180px) {
  .reader-frame { padding-right: 400px; }
}

.inspector {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  width: 380px;
  background: var(--mantra-bg);
  border-left: 1px solid var(--mantra-hairline);
  z-index: 15;
  display: flex;
  flex-direction: column;
  font-family: var(--mantra-sans);
  font-size: 0.92rem;
  color: var(--mantra-fg);
  overflow: hidden;
}

@media (max-width: 1180px) {
  .inspector {
    position: fixed;
    top: auto;
    right: 0;
    left: 0;
    bottom: 0;
    width: 100vw;
    max-height: 55vh;
    border-left: none;
    border-top: 1px solid var(--mantra-hairline);
    box-shadow: 0 -6px 20px rgba(0, 0, 0, 0.06);
  }
}

.inspector-head {
  padding: 0.9rem 1.1rem 0.7rem;
  border-bottom: 1px solid var(--mantra-hairline);
  text-align: center;
}

.inspector-tabs {
  display: inline-flex;
  gap: 0.2rem;

  .tab {
    background: transparent;
    border: none;
    cursor: pointer;
    font-family: var(--mantra-sans);
    font-size: 0.8rem;
    font-variation-settings: "wght" 450;
    letter-spacing: 0.08em;
    text-transform: lowercase;
    color: var(--mantra-muted);
    padding: 0.3rem 0.9rem;
    border-radius: 14px;
    transition: color 0.15s, background 0.15s;

    &:hover { color: var(--mantra-fg); }
    &.tab-active {
      color: var(--mantra-bg);
      background: var(--mantra-accent);
      font-variation-settings: "wght" 600;
    }
  }
}

.inspector-anchor {
  padding: 0.7rem 1.1rem;
  border-bottom: 1px solid var(--mantra-hairline);
  min-height: 3.2rem;
}

.inspector-hint {
  font-family: var(--mantra-serif);
  font-style: italic;
  font-size: 0.85rem;
  color: var(--mantra-faint);
  margin: 0;
  line-height: 1.4;
}

.inspector-anchor-chip {
  display: flex;
  align-items: flex-start;
  gap: 0.4rem;
  position: relative;
}

.inspector-excerpt {
  flex: 1;
  font-family: var(--mantra-serif);
  font-style: italic;
  font-size: 0.86rem;
  line-height: 1.5;
  color: var(--mantra-muted);
  max-height: 5.5em;
  overflow: hidden;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  padding-left: 0.6rem;
  border-left: 2px solid var(--mantra-hairline);

  &.is-selection {
    border-left-color: var(--mantra-accent);
    color: var(--mantra-fg);
  }
}

.inspector-anchor-clear {
  background: transparent;
  border: none;
  cursor: pointer;
  color: var(--mantra-faint);
  font-family: var(--mantra-serif);
  font-size: 1.1rem;
  line-height: 1;
  padding: 0 0.25rem;
  transition: color 0.15s;
  &:hover { color: var(--mantra-fg); }
}

.inspector-form {
  padding: 0.9rem 1.1rem 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  border-bottom: 1px solid var(--mantra-hairline);
}

.inspector-input {
  width: 100%;
  resize: vertical;
  min-height: 4.5rem;
  background: var(--mantra-bg);
  color: var(--mantra-fg);
  border: 1px solid var(--mantra-hairline);
  border-radius: 4px;
  padding: 0.55rem 0.7rem;
  font-family: var(--mantra-serif);
  font-size: 0.95rem;
  line-height: 1.45;
  transition: border-color 0.15s;
  &:focus {
    outline: none;
    border-color: var(--mantra-accent);
  }
}

.inspector-actions {
  display: flex;
  align-items: center;
  gap: 0.8rem;
}

.inspector-author {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  flex: 1;
  min-width: 0;

  .inspector-author-label {
    font-size: 0.72rem;
    color: var(--mantra-muted);
    letter-spacing: 0.06em;
    text-transform: lowercase;
    font-variation-settings: "wght" 500;
  }
  .inspector-author-input {
    flex: 1;
    min-width: 0;
    background: transparent;
    border: none;
    border-bottom: 1px dashed var(--mantra-faint);
    font-family: var(--mantra-sans);
    font-size: 0.82rem;
    color: var(--mantra-fg);
    padding: 0.1rem 0 0.15rem;
    outline: none;
    transition: border-color 0.15s;
    &:focus { border-bottom-color: var(--mantra-accent); }
    &::placeholder { color: var(--mantra-faint); }
  }
}

.inspector-submit {
  background: var(--mantra-accent);
  color: var(--mantra-bg);
  border: none;
  border-radius: 14px;
  padding: 0.45rem 1.1rem;
  font-family: var(--mantra-sans);
  font-size: 0.82rem;
  font-variation-settings: "wght" 600;
  letter-spacing: 0.06em;
  text-transform: lowercase;
  cursor: pointer;
  transition: opacity 0.15s, transform 0.12s;

  &:hover:not(:disabled) { transform: translateY(-1px); }
  &:disabled {
    opacity: 0.4;
    cursor: not-allowed;
  }
}

.inspector-error {
  color: #b45309;
  font-family: var(--mantra-mono);
  font-size: 0.78rem;
  margin: 0;
  word-break: break-word;
}

.inspector-entries {
  flex: 1 1 auto;
  overflow-y: auto;
  padding: 0.7rem 1.1rem 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.9rem;
}

.inspector-entries-label {
  font-family: var(--mantra-sans);
  font-size: 0.68rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--mantra-muted);
  margin-bottom: 0.2rem;
  &:empty { display: none; }
}

// --- Selection popover (floating over selected text) ----------------

.selpop {
  position: fixed;
  transform: translate(-50%, -100%);
  z-index: 30;
  display: flex;
  align-items: center;
  gap: 0;
  background: var(--mantra-fg);
  color: var(--mantra-bg);
  border-radius: 18px;
  padding: 0.2rem 0.3rem;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
  font-family: var(--mantra-sans);
  font-size: 0.78rem;
  animation: selpop-in 0.12s ease-out;
  white-space: nowrap;
}

@keyframes selpop-in {
  from { opacity: 0; transform: translate(-50%, -95%); }
  to   { opacity: 1; transform: translate(-50%, -100%); }
}

.selpop::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: -5px;
  transform: translateX(-50%) rotate(45deg);
  width: 10px;
  height: 10px;
  background: var(--mantra-fg);
}

.selpop-btn {
  background: transparent;
  border: none;
  color: var(--mantra-bg);
  cursor: pointer;
  padding: 0.35rem 0.7rem;
  border-radius: 14px;
  font-family: var(--mantra-sans);
  font-size: 0.78rem;
  font-variation-settings: "wght" 500;
  letter-spacing: 0.04em;
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  transition: background 0.12s;

  &:hover { background: rgba(255, 255, 255, 0.1); }
}

.selpop-ask {
  color: var(--mantra-bg);
  font-variation-settings: "wght" 600;
}

.selpop-ico {
  color: var(--mantra-accent);
  font-size: 0.9rem;
}

.selpop-sep {
  width: 1px;
  height: 16px;
  background: rgba(255, 255, 255, 0.15);
  margin: 0 0.15rem;
}

.selpop-close {
  padding: 0.35rem 0.55rem;
  font-size: 1rem;
  line-height: 1;
}

.margin-empty {
  color: var(--mantra-muted);
  font-style: italic;
  font-family: var(--mantra-serif);
  font-size: 0.9rem;
  margin: 1.2rem 0;
  text-align: center;
}

.note-card {
  border-left: 2px solid var(--mantra-hairline);
  padding: 0.1rem 0 0.1rem 0.8rem;

  &.note-card-ask { border-left-color: var(--mantra-accent); }

  .note-card-meta {
    font-size: 0.72rem;
    letter-spacing: 0.08em;
    color: var(--mantra-muted);
    margin-bottom: 0.3rem;
    font-variation-settings: "wght" 500;
  }
  .note-q {
    font-family: var(--mantra-serif);
    font-style: italic;
    font-size: 0.94rem;
    line-height: 1.5;
    margin: 0 0 0.5rem;
    color: var(--mantra-fg);
  }
  .note-a {
    font-family: var(--mantra-serif);
    font-size: 0.94rem;
    line-height: 1.55;
    margin: 0;
    color: var(--mantra-fg);
    white-space: pre-wrap;
  }
}

.margin-drawer-form {
  padding: 0.9rem 1.1rem 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.margin-drawer-input {
  width: 100%;
  resize: vertical;
  min-height: 4.5rem;
  background: var(--mantra-bg);
  color: var(--mantra-fg);
  border: 1px solid var(--mantra-hairline);
  border-radius: 4px;
  padding: 0.55rem 0.7rem;
  font-family: var(--mantra-serif);
  font-size: 0.95rem;
  line-height: 1.45;
  transition: border-color 0.15s;
  &:focus {
    outline: none;
    border-color: var(--mantra-accent);
  }
}

.margin-drawer-actions {
  display: flex;
  align-items: center;
  gap: 0.8rem;
}

.margin-drawer-author {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  flex: 1;
  min-width: 0;

  .margin-drawer-author-label {
    font-size: 0.72rem;
    color: var(--mantra-muted);
    letter-spacing: 0.06em;
    text-transform: lowercase;
    font-variation-settings: "wght" 500;
  }
  .margin-drawer-author-input {
    flex: 1;
    min-width: 0;
    background: transparent;
    border: none;
    border-bottom: 1px dashed var(--mantra-faint);
    font-family: var(--mantra-sans);
    font-size: 0.82rem;
    color: var(--mantra-fg);
    padding: 0.1rem 0 0.15rem;
    outline: none;
    transition: border-color 0.15s;
    &:focus { border-bottom-color: var(--mantra-accent); }
    &::placeholder { color: var(--mantra-faint); }
  }
}

.margin-drawer-submit {
  background: var(--mantra-accent);
  color: var(--mantra-bg);
  border: none;
  border-radius: 14px;
  padding: 0.45rem 1.1rem;
  font-family: var(--mantra-sans);
  font-size: 0.82rem;
  font-variation-settings: "wght" 600;
  letter-spacing: 0.06em;
  text-transform: lowercase;
  cursor: pointer;
  transition: opacity 0.15s, transform 0.12s;

  &:hover:not(:disabled) { transform: translateY(-1px); }
  &:disabled {
    opacity: 0.4;
    cursor: not-allowed;
  }
}

.margin-drawer-error {
  color: #b45309;
  font-family: var(--mantra-mono);
  font-size: 0.78rem;
  margin: 0;
  word-break: break-word;
}

// Mobile: drawer becomes a bottom sheet
@media (max-width: 720px) {
  .margin-drawer {
    top: auto;
    right: 0;
    left: 0;
    bottom: 0;
    width: 100vw;
    max-height: 75vh;
    border-left: none;
    border-top: 1px solid var(--mantra-hairline);
    box-shadow: 0 -8px 24px rgba(0, 0, 0, 0.08);
    animation: drawer-up 0.22s ease-out;
  }
  @keyframes drawer-up {
    from { transform: translateY(16px); opacity: 0; }
    to   { transform: translateY(0); opacity: 1; }
  }
}


// --- v0.4 polish: focus mode, reading thread, dwell trace ------------

// Focus mode: hides chrome, widens reading area, fades the inspector.
// Toggled by F or the "focus·f" corner button.
.reader-frame.focus-mode {
  .lang-toggle,
  .source-breadcrumb,
  .source-foot {
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease-out;
  }
  .inspector {
    transform: translateX(calc(100% - 2rem));
    transition: transform 0.35s cubic-bezier(0.2, 0.7, 0.25, 1);
    opacity: 0.3;
  }
  .inspector:hover { opacity: 1; transform: translateX(0); }
}
@media (min-width: 1180px) {
  .reader-frame.focus-mode { padding-right: 0; }
  .reader-frame.focus-mode > main.source { max-width: 68ch; }
}

// Focus-exit corner pill — only appears when focus-mode is on.
.focus-exit {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  z-index: 25;
  background: var(--mantra-fg);
  color: var(--mantra-bg);
  border: none;
  border-radius: 18px;
  padding: 0.45rem 0.95rem;
  font-family: var(--mantra-sans);
  font-size: 0.7rem;
  letter-spacing: 0.14em;
  text-transform: lowercase;
  font-variation-settings: "wght" 500;
  cursor: pointer;
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.18);
  transition: transform 0.15s;
  animation: focus-exit-in 0.25s ease-out;
}
.focus-exit:hover { transform: translateY(-2px); }
@keyframes focus-exit-in {
  from { opacity: 0; transform: translateY(10px); }
  to   { opacity: 1; transform: translateY(0); }
}

// Reading progress thread — 2px line along bottom, scales horizontally
// as the reader scrolls through the source.
.reading-thread {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  height: 2px;
  z-index: 20;
  background: transparent;
  pointer-events: none;
}
.reading-thread-fill {
  display: block;
  height: 100%;
  width: 100%;
  background: var(--mantra-accent);
  transform-origin: left center;
  transform: scaleX(0);
  transition: transform 0.18s ease-out;
  opacity: 0.7;
}

// Dwell trace — reader spent ≥12s on this paragraph; a small marker
// shows up in the margin. Personal, stored in localStorage.
// Distinct from .has-notes (public): dwell is the readers trace.
.source-body p[data-para-id].dwelled {
  &::after {
    content: "";
    position: absolute;
    right: -1.25rem;
    top: 0.75em;
    width: 4px;
    height: 4px;
    border-radius: 50%;
    background: var(--mantra-muted);
    opacity: 0.4;
    transition: opacity 0.3s, transform 0.3s;
  }
  &:hover::after { opacity: 0.7; transform: scale(1.3); }
}
@media (max-width: 900px) {
  .source-body p[data-para-id].dwelled::after { display: none; }
}



// --- v0.4.1 push-to-100: staggered hero, heavier artifact, focus anim ---

// Staggered reveal — source hero unfolds сверху-вниз, не вспышкой
.source-hero > * {
  opacity: 0;
  transform: translateY(6px);
  animation: hero-rise 0.6s cubic-bezier(0.2, 0.7, 0.25, 1) forwards;
}
.source-hero > *:nth-child(1) { animation-delay: 0.08s; }
.source-hero > *:nth-child(2) { animation-delay: 0.22s; }
.source-hero > *:nth-child(3) { animation-delay: 0.42s; }
.source-hero > *:nth-child(4) { animation-delay: 0.56s; }
.source-hero > *:nth-child(5) { animation-delay: 0.72s; }

.source-body {
  opacity: 0;
  animation: body-rise 0.7s ease-out 0.9s forwards;
}

@keyframes hero-rise {
  to { opacity: 1; transform: translateY(0); }
}
@keyframes body-rise {
  to { opacity: 1; }
}

// Respect prefers-reduced-motion
@media (prefers-reduced-motion: reduce) {
  .source-hero > *, .source-body {
    animation: none;
    opacity: 1;
    transform: none;
  }
}

// Artifact typography — тяжелее, плотнее, визуально весомее чем distillation.
// Напряжение между регистрами: distillate — лёгкая живая нота; artifact —
// первая кость, которую держат.
.source.artifact {
  .source-hero-title {
    font-variation-settings: "opsz" 144, "SOFT" 30, "WONK" 0, "wght" 480;
    letter-spacing: -0.022em;
  }
  .source-body {
    font-variation-settings: "opsz" 18, "SOFT" 20, "WONK" 0, "wght" 430;
    line-height: 1.72;
  }
  .source-body h2 {
    font-variation-settings: "wght" 600;
    letter-spacing: 0.22em;
  }
  .source-body strong {
    font-variation-settings: "opsz" 18, "SOFT" 20, "WONK" 0, "wght" 680;
  }
}

// Focus mode — при входе выдох «тушения комнаты»: фон на мгновение
// темнеет до deep-pergament, chrome выдыхает, затем фон возвращается.
.reader-frame.focus-mode {
  animation: room-dim 0.6s ease-out;
}
@keyframes room-dim {
  0%   { background: var(--mantra-bg); }
  40%  { background: var(--mantra-bg-deep); }
  100% { background: var(--mantra-bg); }
}
@media (prefers-reduced-motion: reduce) {
  .reader-frame.focus-mode { animation: none; }
}


// Featured work — «сегодня» one source in focus, rotates by day. The
// rest of the corpus is shown below, but this one карта has typographic
// weight that others don't. Principle 5 (граница) — ONE thing in focus,
// the 33 others are available but not shown with the same gravity.
.featured-work {
  margin-bottom: 5rem;
  padding-bottom: 2rem;
  border-bottom: 1px solid var(--mantra-hairline);
}
.featured-label {
  font-family: var(--mantra-sans);
  font-variation-settings: "wght" 500;
  font-size: 0.7rem;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--mantra-accent);
  margin-bottom: 1.5rem;
}
.featured-card {
  display: block;
  text-decoration: none;
  border-bottom: none;
  padding: 0;
  transition: transform 0.25s cubic-bezier(0.2, 0.7, 0.25, 1);
}
.featured-card:hover { transform: translateX(2px); }
.featured-author {
  font-family: var(--mantra-serif);
  font-variation-settings: "opsz" 24, "SOFT" 30, "WONK" 0, "wght" 520;
  font-size: 1.05rem;
  color: var(--mantra-fg);
  margin-bottom: 0.4rem;
}
.featured-title {
  font-family: var(--mantra-serif);
  font-variation-settings: "opsz" 72, "SOFT" 50, "WONK" 0, "wght" 420;
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  line-height: 1.15;
  letter-spacing: -0.012em;
  margin: 0 0 1.3rem;
  color: var(--mantra-fg);
}
.featured-claim {
  font-family: var(--mantra-serif);
  font-style: italic;
  font-variation-settings: "opsz" 24, "SOFT" 30, "WONK" 0, "wght" 400;
  font-size: 1.05rem;
  line-height: 1.55;
  color: var(--mantra-muted);
  max-width: 58ch;
  display: -webkit-box;
  -webkit-line-clamp: 4;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.featured-claim em { font-style: italic; color: var(--mantra-fg); }
.featured-claim strong { font-variation-settings: "opsz" 24, "SOFT" 30, "WONK" 0, "wght" 600; color: var(--mantra-fg); }