/* ==========================================================================
   Clover — Minimalist Botanical & Nature-Embodied Design System
   Warm sunlit parchment, deep forest-bark ink, living clover moss & weathered stone.
   Pure hand-crafted CSS · Zero external dependencies.
   ========================================================================== */

:root {
  /* --- Complete-English Hyphenated Botanical Design Constants (`--constant-*`) --- */
  --constant-sunlit-parchment-background: #faf8f2;
  --constant-soft-moss-linen-surface:     #f2eee4;
  --constant-deep-moss-linen-surface:     #e7e1d3;
  --constant-elevated-card-paper-surface: #fffefb;
  --constant-tinted-herbarium-surface:    #f6f3ea;
  --constant-frosted-parchment-glass:     rgba(250, 248, 242, 0.86);
  --constant-frosted-card-glass:          rgba(255, 254, 251, 0.92);

  --constant-forest-bark-primary-ink:     #132018;
  --constant-pine-needle-secondary-ink:   #2d3e34;
  --constant-lichen-muted-ink:            #596a5f;
  --constant-weathered-subtle-ink:        #7c8c81;

  --constant-pressed-stem-border-line:    #dfd8c8;
  --constant-strong-stem-border-line:     #c9c0ad;
  --constant-hairline-divider-tint:       rgba(19, 32, 24, 0.08);

  --constant-clover-leaf-primary-accent:  #1b5e46;
  --constant-clover-leaf-hover-accent:    #124331;
  --constant-clover-leaf-medium-accent:   #297a5d;
  --constant-clover-leaf-soft-wash:       #e3efe8;
  --constant-clover-leaf-subtle-tint:     #eef6f1;
  --constant-clover-leaf-border-accent:   #8bb7a4;

  --constant-amber-sunlight-warning-ink:  #7d5312;
  --constant-amber-sunlight-warning-wash: #fbf3e2;
  --constant-amber-sunlight-warning-line: #dfc48d;

  --constant-living-leaf-gradient-start:  #32946f;
  --constant-living-leaf-gradient-middle: #1b5e46;
  --constant-living-leaf-gradient-end:    #0e3929;
  --constant-living-leaf-ambient-glow:    rgba(27, 94, 70, 0.14);

  --constant-herbarium-serif-font-stack:  "Iowan Old Style", "Palatino Linotype", "Book Antiqua", Palatino, "ITC Charter", Georgia, serif;
  --constant-humanist-sans-font-stack:    "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --constant-monospace-code-font-stack:   "JetBrains Mono", ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;

  --constant-maximum-prose-measure:       65ch;
  --constant-horizontal-page-padding:     clamp(1.35rem, 4.2vw, 2.75rem);
  --constant-natural-motion-easing:       cubic-bezier(0.22, 1, 0.36, 1);

  /* --- Sunlit Botanical Surfaces (Linen, Warm Parchment & Morning Dew) --- */
  --bg:           var(--constant-sunlit-parchment-background);
  --soft:         var(--constant-soft-moss-linen-surface);
  --soft-2:       var(--constant-deep-moss-linen-surface);
  --surface:      var(--constant-elevated-card-paper-surface);
  --surface-tint: var(--constant-tinted-herbarium-surface);
  --glass:        var(--constant-frosted-parchment-glass);
  --card-glass:   var(--constant-frosted-card-glass);

  /* --- Forest Bark, Pine & Lichen Ink --- */
  --ink:          var(--constant-forest-bark-primary-ink);
  --ink-2:        var(--constant-pine-needle-secondary-ink);
  --muted:        var(--constant-lichen-muted-ink);
  --subtle:       var(--constant-weathered-subtle-ink);

  /* --- Organic Hairlines & Pressed-Stem Borders --- */
  --line:         var(--constant-pressed-stem-border-line);
  --line-2:       var(--constant-strong-stem-border-line);
  --line-soft:    var(--constant-hairline-divider-tint);

  /* --- Living Clover Greens & Warm Amber Sunlight --- */
  --accent:       var(--constant-clover-leaf-primary-accent);
  --accent-hover: var(--constant-clover-leaf-hover-accent);
  --accent-mid:   var(--constant-clover-leaf-medium-accent);
  --accent-soft:  var(--constant-clover-leaf-soft-wash);
  --accent-tint:  var(--constant-clover-leaf-subtle-tint);
  --accent-line:  var(--constant-clover-leaf-border-accent);

  --warn:         var(--constant-amber-sunlight-warning-ink);
  --warn-soft:    var(--constant-amber-sunlight-warning-wash);
  --warn-line:    var(--constant-amber-sunlight-warning-line);

  /* --- Five-Leaf Clover Botanical Gradient --- */
  --leaf-1:       var(--constant-living-leaf-gradient-start);
  --leaf-2:       var(--constant-living-leaf-gradient-middle);
  --leaf-3:       var(--constant-living-leaf-gradient-end);
  --leaf-glow:    var(--constant-living-leaf-ambient-glow);

  /* --- Typography: Literary Herbarium Serif + Clean Humanist Sans --- */
  --serif:        var(--constant-herbarium-serif-font-stack);
  --font:         var(--constant-humanist-sans-font-stack);
  --mono:         var(--constant-monospace-code-font-stack);

  /* --- Rhythm, Geometry & Elevation --- */
  --radius-xs:    8px;
  --radius-sm:    12px;
  --radius:       16px;
  --radius-lg:    24px;
  --radius-pill:  999px;
  --measure:      var(--constant-maximum-prose-measure);
  --pad:          var(--constant-horizontal-page-padding);

  --shadow-xs:    0 1px 3px rgba(18, 32, 24, 0.04);
  --shadow-sm:    0 6px 20px -4px rgba(18, 32, 24, 0.055), 0 2px 6px -1px rgba(18, 32, 24, 0.03);
  --shadow-md:    0 14px 36px -8px rgba(18, 32, 24, 0.08), 0 4px 12px -2px rgba(18, 32, 24, 0.04);
  --shadow-lg:    0 24px 56px -12px rgba(18, 32, 24, 0.12), 0 8px 20px -4px rgba(18, 32, 24, 0.05);

  --ease-nature:  var(--constant-natural-motion-easing);
}

/* Weathered River-Stone State (when scrolling into the real-world misuse sections) */
:root.is-real-world {
  --leaf-1:       #878274;
  --leaf-2:       #696458;
  --leaf-3:       #4d4940;
  --leaf-glow:    rgba(105, 100, 88, 0.10);
}

/* ==========================================================================
   1. Base Reset, View Transitions & Sunlit Meadow Canvas
   ========================================================================== */

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

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: 5.2rem;
}

@media (prefers-reduced-motion: no-preference) {
  @view-transition { navigation: auto; }

  ::view-transition-old(root) {
    animation: clover-fade-out 180ms cubic-bezier(0.4, 0, 1, 1) both;
  }
  ::view-transition-new(root) {
    animation: clover-fade-in 280ms var(--ease-nature) both;
  }
}

@keyframes clover-fade-out { to { opacity: 0; } }
@keyframes clover-fade-in  { from { opacity: 0; transform: translateY(6px); } }

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

body {
  margin: 0;
  background-color: var(--bg);
  background-image:
    radial-gradient(ellipse 88% 52% at 50% -8%, rgba(41, 122, 93, 0.075), transparent 70%),
    radial-gradient(ellipse 60% 42% at 92% 16%, rgba(196, 143, 59, 0.045), transparent 65%),
    radial-gradient(ellipse 68% 48% at 6% 68%, rgba(27, 94, 70, 0.04), transparent 70%);
  background-attachment: fixed;
  color: var(--ink);
  font-family: var(--font);
  font-size: 17px;
  line-height: 1.72;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

::selection {
  background: var(--accent-soft);
  color: var(--accent-hover);
}

/* ==========================================================================
   2. Botanical Editorial Typography & Links
   ========================================================================== */

h1, h2, h3, h4 {
  color: var(--ink);
  line-height: 1.18;
  letter-spacing: -0.018em;
  margin: 0 0 0.55em;
}

h1 {
  font-family: var(--serif);
  font-size: clamp(2.15rem, 4.8vw, 3.25rem);
  font-weight: 600;
  letter-spacing: -0.025em;
  line-height: 1.12;
}

h2 {
  font-family: var(--serif);
  font-size: clamp(1.55rem, 3.2vw, 2.15rem);
  font-weight: 600;
  letter-spacing: -0.018em;
}

h3 {
  font-family: var(--serif);
  font-size: 1.24rem;
  font-weight: 600;
  letter-spacing: -0.01em;
}

h4 {
  font-family: var(--font);
  font-size: 0.82rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.09em;
  color: var(--muted);
}

p {
  margin: 0 0 1.08rem;
  max-width: var(--measure);
  color: var(--ink-2);
}

ul, ol {
  max-width: var(--measure);
  color: var(--ink-2);
  margin: 0 0 1.1rem;
  padding-left: 1.35rem;
}

li {
  margin-bottom: 0.38rem;
}

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

strong {
  font-weight: 650;
  color: var(--ink);
}

/* The opening lead of each band section carries the botanical clover accent */
main section.band > .wrap > p:first-of-type strong {
  color: var(--accent);
}

/* Source evidence links below sections */
main section.band > .wrap > p.evidence-link {
  font-size: 0.94rem;
  color: var(--muted);
  margin-top: 1.5rem;
  padding-top: 0.75rem;
  border-top: 1px dashed var(--line);
}

.evidence-link a {
  color: var(--ink-2);
  text-decoration-color: var(--line-2);
  font-weight: 550;
}

.evidence-link a:hover {
  color: var(--accent);
  text-decoration-color: currentColor;
}

a {
  color: var(--accent);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.18em;
  text-decoration-color: rgba(27, 94, 70, 0.36);
  overflow-wrap: anywhere;
  transition: color 0.18s var(--ease-nature), text-decoration-color 0.18s var(--ease-nature);
}

a:hover {
  color: var(--accent-hover);
  text-decoration-color: var(--accent-hover);
  text-decoration-thickness: 1.5px;
}

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 4px;
}

code, .mono {
  font-family: var(--mono);
  font-size: 0.86em;
  overflow-wrap: anywhere;
}

p code, li code, td code, dd code, caption code {
  background: var(--soft);
  color: var(--ink);
  border: 1px solid var(--line);
  padding: 0.1rem 0.36rem;
  border-radius: 5px;
}

.skip {
  position: absolute;
  left: -9999px;
  top: 0.6rem;
  z-index: 100;
  background: var(--accent);
  color: #fff;
  padding: 0.6rem 1.1rem;
  border-radius: var(--radius-pill);
  text-decoration: none;
  font-size: 0.88rem;
  font-weight: 600;
  box-shadow: var(--shadow-md);
}

.skip:focus {
  left: 1rem;
}

/* ==========================================================================
   3. Layout Containers, Section Bands & Editorial Scale
   ========================================================================== */

.wrap {
  width: min(1140px, 100%);
  margin-inline: auto;
  padding-inline: var(--pad);
}

.narrow {
  width: min(760px, 100%);
  margin-inline: auto;
  padding-inline: var(--pad);
}

section[id] { scroll-margin-top: 5rem; }
.kv[id], .wrong[id] { scroll-margin-top: 6rem; }

.band {
  padding-block: clamp(3.2rem, 7vw, 5.2rem);
  border-bottom: 1px solid rgba(201, 192, 173, 0.48);
  position: relative;
}

.band:last-of-type {
  border-bottom: 0;
}

.lede {
  font-family: var(--serif);
  font-size: clamp(1.14rem, 2vw, 1.32rem);
  line-height: 1.62;
  color: var(--ink-2);
}

.note {
  font-size: 0.91rem;
  color: var(--muted);
}

/* Section-level prose carries generous editorial scale */
main section.band > .wrap > p,
main section.band > .wrap > .scale-dimensions > div > p,
main.narrow > p {
  font-size: clamp(1.08rem, 1.9vw, 1.22rem);
  line-height: 1.72;
}

main section.band > .wrap > h3,
main.narrow > h3 {
  font-family: var(--serif);
  font-size: clamp(1.32rem, 2.4vw, 1.56rem);
  margin-top: 1.8rem;
}

/* ==========================================================================
   4. Author Page & Sanskrit Verse
   ========================================================================== */

.author-head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 1.6rem;
  align-items: center;
  padding: 1.5rem 1.75rem;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  margin-bottom: 2.2rem;
}

.author-head h1 {
  margin-top: 0;
}

.author-head .lede {
  margin-bottom: 0;
}

@media (max-width: 560px) {
  .author-head {
    grid-template-columns: 1fr;
    gap: 1rem;
    text-align: center;
  }
  .author-head .feather {
    margin-inline: auto;
  }
}

.feather {
  display: block;
  width: auto;
  filter: drop-shadow(0 8px 16px rgba(19, 32, 24, 0.10));
}

.feather--lg { height: 122px; }
.feather--sm { height: 76px; margin: 0 auto 1rem; }

.verse {
  margin: 3rem 0 0;
  padding: 2rem 1.75rem;
  background: linear-gradient(180deg, var(--surface) 0%, var(--surface-tint) 100%);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  text-align: center;
  box-shadow: var(--shadow-sm);
}

.verse p[lang="sa"] {
  font-family: "Nirmala UI", "Noto Sans Devanagari", "Mangal", var(--serif);
  font-size: 1.2rem;
  line-height: 1.95;
  color: var(--ink);
  margin: 0 auto 0.85rem;
}

.verse__meaning {
  font-family: var(--serif);
  font-style: italic;
  font-size: 1.02rem;
  color: var(--ink-2);
  margin: 0 auto;
  max-width: 46ch;
}

main section.band > .wrap > p.verse__line {
  margin: 2.6rem auto 0;
  max-width: 44ch;
  font-family: var(--serif);
  font-size: clamp(1.18rem, 2.6vw, 1.52rem);
  font-weight: 600;
  line-height: 1.35;
  letter-spacing: -0.015em;
  color: var(--accent);
}

.closing .wrap { text-align: center; }
.closing { padding-block: clamp(3.5rem, 9vw, 7rem); }

:root.is-closing .pinned__mark {
  opacity: 0;
  pointer-events: none;
  visibility: hidden;
  transition: opacity 600ms ease, visibility 0s 600ms;
}

.pinned__mark {
  transition: opacity 600ms ease, visibility 0s;
}

/* ==========================================================================
   5. The Five-Leaf Botanical Clover Mark & Pinned Story Rail
   ========================================================================== */

.clover-sprite {
  position: absolute;
  width: 0;
  height: 0;
  overflow: hidden;
  pointer-events: none;
}

.clover {
  display: block;
  flex: none;
  width: clamp(72px, 12vw, 112px);
  height: auto;
  overflow: visible;
}

.clover__leaf {
  fill: none;
  stroke: var(--accent-line);
  stroke-width: 2.8;
  stroke-linejoin: round;
}

.clover__leaf.is-filled {
  fill: var(--accent);
  stroke: var(--accent);
  stroke-width: 1.8;
}

.clover__stem {
  fill: none;
  stroke: var(--accent-line);
  stroke-width: 3.4;
  stroke-linecap: round;
}

.clover--hero {
  width: clamp(260px, 35vw, 390px);
  justify-self: center;
  margin-inline: auto;
  filter: drop-shadow(0 18px 36px var(--leaf-glow));
}

.clover--close {
  display: block;
  width: clamp(150px, 24vw, 236px);
  margin: 2.2rem auto 0;
  filter: drop-shadow(0 14px 28px rgba(27, 94, 70, 0.16));
}

.clover--close .clover__leaf.is-filled {
  fill: url(#leaf-revive);
  stroke: none;
}

.clover--close .clover__vein {
  stroke: #d9ece4;
}

.clover--brand {
  width: 26px;
}

.clover--mark {
  width: clamp(200px, 40vw, 420px);
}

.clover__leaf.is-soft {
  fill: var(--accent-soft);
  stroke: var(--accent-line);
  stroke-width: 2.4;
}

.clover__leaf.is-new {
  fill: var(--accent);
  stroke: var(--accent);
  stroke-width: 2.4;
}

.clover__leaf.is-next {
  fill: none;
  stroke: var(--accent-line);
  stroke-width: 2.4;
  stroke-dasharray: 5 4.5;
  stroke-linecap: round;
}

.clover__label {
  font-family: var(--serif);
  font-size: 5.9px;
  font-weight: 600;
  letter-spacing: 0.03em;
  fill: var(--ink-2);
}

.clover__leaf-hit {
  cursor: pointer;
  outline: none;
}

.clover__leaf-hit .clover__leaf,
.clover__leaf-hit .clover__label {
  transition: fill 200ms var(--ease-nature), stroke 200ms var(--ease-nature);
}

.clover__leaf-hit:focus-visible .clover__label {
  fill: var(--ink);
  font-weight: 800;
}

.clover--hero .clover__leaf.is-filled {
  fill: url(#leaf-fade);
  stroke: none;
}

#leaf-fade stop {
  transition: stop-color 700ms var(--ease-nature);
}

#leaf-fade stop:nth-of-type(1) { stop-color: var(--leaf-1); }
#leaf-fade stop:nth-of-type(2) { stop-color: var(--leaf-2); }
#leaf-fade stop:nth-of-type(3) { stop-color: var(--leaf-3); }

.clover__vein {
  fill: none;
  stroke: #fffefb;
  stroke-opacity: 0.55;
  stroke-width: 1.25;
  stroke-linecap: round;
  stroke-linejoin: round;
  pointer-events: none;
}

.clover__label--now  { fill: var(--accent); font-weight: 700; }
.clover__label--next { fill: var(--muted); }

.clover--ink .clover__leaf {
  fill: var(--ink);
  stroke: var(--ink);
  stroke-width: 2;
}

.clover--ink .clover__stem {
  stroke: var(--ink);
}

.ask__q {
  margin-top: 2rem;
  font-family: var(--serif);
  font-size: clamp(1.2rem, 2.6vw, 1.55rem);
  line-height: 1.45;
  font-weight: 600;
  color: var(--ink);
  max-width: 44rem;
  text-wrap: balance;
}

/* Narrative Arc & Leaf Sections */
.arc {
  display: grid;
  gap: 1.5rem 2.4rem;
  align-items: center;
  margin-top: 1.7rem;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
}

@media (max-width: 860px) {
  .arc { grid-template-columns: minmax(0, 1fr); }
}

.arc__mark {
  margin: 0;
  display: grid;
  justify-items: center;
  gap: 0.7rem;
}

.arc__mark figcaption {
  font-size: 0.9rem;
  color: var(--muted);
  text-align: center;
  max-width: 34ch;
}

.arc__body > :last-child { margin-bottom: 0; }
.arc__body h3 { margin-bottom: 0.5rem; }
.arc__body ul { margin: 0 0 1rem; padding-left: 1.15rem; }
.arc__body li { margin-bottom: 0.2rem; }

.holds dt { flex: 0 0 5.5rem; }
.holds dd { padding-top: 0.1rem; }

.wrong {
  margin-top: 1.8rem;
  padding: 0.25rem 0 0.25rem 1.25rem;
  border-left: 3px solid var(--accent-line);
}

.wrong h3 {
  font-family: var(--font);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: var(--muted);
  margin: 0.5rem 0;
}

.wrong p {
  font-size: 0.97rem;
  color: var(--ink-2);
}

.wrong p:last-child { margin-bottom: 0.6rem; }

.wrong__flow, .wrong__cols p { max-width: none; }

@media (min-width: 900px) {
  .wrong__flow, .wrong__cols { columns: 2; column-gap: 3rem; }
  .wrong__cols p { break-inside: avoid; }
  .wrong__cols p:last-child { margin-bottom: 0.6rem; }
}

.split {
  display: grid;
  gap: 1.1rem 2.8rem;
  align-items: start;
}

.split h3 { margin-top: 0; }
.split__lead > :last-child, .split__body > :last-child { margin-bottom: 0; }
.split > .split__body { margin-top: 0; }

@media (min-width: 860px) {
  .split { grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr); }
}

/* ==========================================================================
   6. Botanical Header & Navigation
   ========================================================================== */

.site-head {
  position: sticky;
  top: 0;
  z-index: 50;
  background: var(--glass);
  backdrop-filter: saturate(150%) blur(14px);
  -webkit-backdrop-filter: saturate(150%) blur(14px);
  border-bottom: 1px solid var(--line);
}

.site-head .wrap {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  min-height: 4rem;
  flex-wrap: wrap;
}

.brand-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.25rem;
  height: 2.25rem;
  border-radius: 50%;
  background: var(--accent-tint);
  border: 1px solid rgba(27, 94, 70, 0.18);
  text-decoration: none;
  margin-right: -0.25rem;
  transition: transform 0.35s var(--ease-nature), background-color 0.2s var(--ease-nature), border-color 0.2s var(--ease-nature);
}

.brand-icon:hover {
  transform: rotate(36deg) scale(1.05);
  background: var(--accent-soft);
  border-color: var(--accent-line);
}

.brand {
  display: inline-flex;
  align-items: baseline;
  gap: 0.42rem;
  font-family: var(--serif);
  font-weight: 600;
  letter-spacing: -0.015em;
  color: var(--ink);
  text-decoration: none;
  margin-right: auto;
  font-size: 1.14rem;
}

.brand:hover {
  color: var(--accent);
}

.brand span {
  font-family: var(--font);
  color: var(--accent);
  font-weight: 550;
  font-size: 0.88rem;
  letter-spacing: 0.01em;
}

.site-nav {
  display: flex;
  gap: 0.22rem;
  flex-wrap: wrap;
  align-items: center;
}

.site-nav > a,
.site-nav > .nav-item > a {
  color: var(--ink-2);
  text-decoration: none;
  font-size: 0.94rem;
  font-weight: 550;
  padding: 0.4rem 0.78rem;
  border-radius: var(--radius-pill);
  border-bottom: 0;
  transition: background-color 0.18s var(--ease-nature), color 0.18s var(--ease-nature);
}

.site-nav > a:hover,
.site-nav > .nav-item > a:hover {
  color: var(--accent-hover);
  background: var(--soft);
}

.site-nav > a[aria-current="page"],
.site-nav > a[aria-current="true"],
.site-nav > .nav-item > a[aria-current="page"],
.site-nav > .nav-item > a[aria-current="true"] {
  background: var(--accent-soft);
  color: var(--accent-hover);
  font-weight: 650;
}

/* Evidence Submenu */
.nav-item {
  position: relative;
  display: inline-flex;
  align-items: center;
}

.nav-item.has-sub > a::after {
  content: '';
  display: inline-block;
  width: 0.34em;
  height: 0.34em;
  margin-left: 0.4em;
  border-right: 1.8px solid currentColor;
  border-bottom: 1.8px solid currentColor;
  transform: translateY(-0.14em) rotate(45deg);
  opacity: 0.7;
}

.subnav {
  display: none;
  position: absolute;
  top: calc(100% + 0.3rem);
  left: -0.4rem;
  z-index: 30;
  min-width: 15.5rem;
  margin: 0;
  padding: 0.45rem;
  list-style: none;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-md);
}

.subnav::before {
  content: '';
  position: absolute;
  left: 0;
  right: 0;
  top: -0.45rem;
  height: 0.45rem;
}

.nav-item:hover > .subnav,
.nav-item:focus-within > .subnav {
  display: block;
}

.subnav li {
  margin: 0;
}

.subnav a {
  display: block;
  padding: 0.48rem 0.78rem;
  border-bottom: 0;
  border-radius: var(--radius-xs);
  font-size: 0.91rem;
  font-weight: 500;
  color: var(--ink-2);
  text-decoration: none;
  transition: background-color 0.15s var(--ease-nature), color 0.15s var(--ease-nature);
}

.subnav a:hover {
  background: var(--accent-tint);
  color: var(--accent-hover);
}

.subnav a[aria-current="page"] {
  background: var(--accent-soft);
  color: var(--accent-hover);
  font-weight: 650;
}

/* Mobile Menu Toggle */
.nav-toggle {
  display: none;
  align-items: center;
  gap: 0.52rem;
  background: var(--surface);
  border: 1px solid var(--line-2);
  border-radius: var(--radius-pill);
  padding: 0.4rem 0.85rem;
  font: inherit;
  font-size: 0.86rem;
  font-weight: 600;
  color: var(--ink);
  cursor: pointer;
  box-shadow: var(--shadow-xs);
}

.nav-toggle:hover {
  border-color: var(--accent-line);
  color: var(--accent-hover);
  background: var(--accent-tint);
}

.nav-toggle__box {
  position: relative;
  display: block;
  width: 16px;
  height: 11px;
}

.nav-toggle__box span,
.nav-toggle__box::before,
.nav-toggle__box::after {
  content: '';
  position: absolute;
  left: 0;
  right: 0;
  height: 1.8px;
  background: currentColor;
  border-radius: 2px;
  transition: transform 0.18s var(--ease-nature), opacity 0.18s var(--ease-nature);
}

.nav-toggle__box::before { top: 0; }
.nav-toggle__box span    { top: 4.5px; }
.nav-toggle__box::after  { bottom: 0; }

.nav-toggle[aria-expanded="true"] .nav-toggle__box::before { transform: translateY(4.5px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] .nav-toggle__box span    { opacity: 0; }
.nav-toggle[aria-expanded="true"] .nav-toggle__box::after  { transform: translateY(-4.5px) rotate(-45deg); }

@media (max-width: 1023px) {
  .site-head .wrap { min-height: 3.5rem; gap: 0.6rem; }
  .nav-toggle { display: inline-flex; }
  .site-nav {
    display: none;
    flex-basis: 100%;
    flex-direction: column;
    gap: 0.15rem;
    margin-top: 0.25rem;
    padding: 0.5rem 0 0.65rem;
    align-items: stretch;
    border-top: 1px solid var(--line);
  }
  .site-nav.is-open {
    display: flex;
    max-height: calc(100dvh - 4rem);
    overflow-y: auto;
  }
  .site-nav > a,
  .nav-item > a {
    display: block;
    font-size: 0.98rem;
    padding: 0.65rem 0.75rem;
    border-radius: var(--radius-xs);
  }
  .nav-item { display: block; }
  .nav-item.has-sub > a::after { display: none; }
  .subnav {
    display: block;
    position: static;
    min-width: 0;
    padding: 0.15rem 0 0.25rem 0.9rem;
    margin: 0.15rem 0 0.25rem 0.85rem;
    border: 0;
    border-left: 1.5px solid var(--line-2);
    border-radius: 0;
    box-shadow: none;
    background: none;
  }
  .subnav::before { display: none; }
  .subnav a {
    padding: 0.45rem 0.6rem;
    font-size: 0.92rem;
    font-weight: 550;
  }
}

.no-js .nav-toggle { display: none; }
.no-js .site-nav   { display: flex; }

/* ==========================================================================
   7. Hero, Pinned Five-Stage Layout & Botanical Buttons
   ========================================================================== */

.hero {
  padding-block: clamp(3rem, 7.5vw, 5.2rem) clamp(2.4rem, 5.5vw, 3.6rem);
  border-bottom: 1px solid var(--line);
}

.hero h1 {
  max-width: 24ch;
  margin-bottom: 0.32em;
}

.hero__tagline {
  max-width: 48ch;
  margin: 0 0 1rem;
  font-family: var(--serif);
  font-size: clamp(1.14rem, 2.3vw, 1.42rem);
  font-style: italic;
  font-weight: 500;
  line-height: 1.38;
  color: var(--accent);
}

.hero .lede {
  max-width: 64ch;
  font-size: clamp(1.12rem, 2vw, 1.28rem);
}

.hero__top {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 1.2rem 2rem;
  align-items: center;
}

@media (max-width: 620px) {
  .hero__top { grid-template-columns: 1fr; }
}

/* Pinned 5-Leaf Story Rail on Home Page */
.story__leaf  { transition: fill 0.3s var(--ease-nature); }
.story__label { transition: fill 0.3s var(--ease-nature), font-weight 0.3s var(--ease-nature); }

.pinned.is-ink .story__leaf  { fill: var(--ink); }
.pinned.is-ink .story__label { fill: var(--ink); }

@media (prefers-reduced-motion: reduce) {
  .story__leaf, .story__label { transition: none; }
}

.pinned {
  position: relative;
  --mark-w: clamp(255px, 34vw, 385px);
  --mark-gap: 3rem;
}

.pinned .wrap {
  padding-right: calc(var(--pad) + var(--mark-w) + var(--mark-gap));
}

.pinned__mark {
  position: sticky;
  top: 50vh;
  z-index: 2;
  height: 0;
  width: min(1140px, 100%);
  margin-inline: auto;
  padding-inline: var(--pad);
  display: flex;
  justify-content: flex-end;
  align-items: flex-start;
}

.pinned__mark > svg {
  margin-inline: 0;
  width: var(--mark-w);
  transform: translateY(-50%);
}

.clover__spin {
  will-change: transform;
}

.pinned__mark .story__leaf {
  transition: fill 0.3s var(--ease-nature);
}

.pinned__mark .story__leaf.is-active {
  fill: var(--ink);
}

.pinned__mark .story__label.is-active {
  fill: var(--ink);
  font-weight: 800;
}

/* Subtle organic highlight on the currently active stage section */
.stage.is-current {
  background: linear-gradient(90deg, rgba(227, 239, 232, 0.42) 0%, transparent 62%);
}

:root .clover--hero .clover__leaf-hit:hover .clover__leaf {
  stroke: var(--ink-2);
  stroke-width: 2.25;
  stroke-dasharray: none;
}

:root .clover--hero .clover__leaf-hit:focus-visible .clover__leaf {
  stroke: var(--ink);
  stroke-width: 3.25;
  stroke-dasharray: none;
}

@media (max-width: 860px) {
  .pinned .wrap { padding-right: var(--pad); }
  .pinned { --mark-w: clamp(115px, 30vw, 160px); }
  .pinned__mark {
    height: auto;
    top: 3.5rem;
    z-index: 5;
    justify-content: center;
    padding-block: 0.85rem 0.65rem;
    background: var(--glass);
    backdrop-filter: saturate(150%) blur(12px);
    -webkit-backdrop-filter: saturate(150%) blur(12px);
    border-bottom: 1px solid var(--line);
  }
  .pinned__mark > svg { transform: none; }
  section.responsibility-band { scroll-margin-top: 12rem; }
}

.no-js .pinned__mark { position: static; height: auto; justify-content: center; }
.no-js .pinned__mark > svg { transform: none; }
.no-js .pinned .wrap { padding-right: var(--pad); }

/* Botanical Buttons */
.actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.7rem 0.85rem;
  margin-top: 1.7rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  padding: 0.68rem 1.25rem;
  border-radius: var(--radius-pill);
  border: 1px solid var(--line-2);
  background: var(--surface);
  color: var(--ink);
  font-size: 0.93rem;
  font-weight: 600;
  line-height: 1.2;
  text-decoration: none;
  cursor: pointer;
  box-shadow: var(--shadow-xs);
  transition:
    background-color 0.2s var(--ease-nature),
    border-color 0.2s var(--ease-nature),
    color 0.2s var(--ease-nature),
    transform 0.2s var(--ease-nature),
    box-shadow 0.2s var(--ease-nature);
}

.btn:hover {
  border-color: var(--accent);
  color: var(--accent-hover);
  background: var(--accent-tint);
  transform: translateY(-1px);
  box-shadow: var(--shadow-sm);
}

.btn--primary {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
  box-shadow: 0 6px 18px -4px rgba(27, 94, 70, 0.36);
}

.btn--primary:hover {
  background: var(--accent-hover);
  border-color: var(--accent-hover);
  color: #fff;
  box-shadow: 0 10px 24px -4px rgba(18, 67, 49, 0.44);
}

.btn--plain {
  border-color: transparent;
  background: none;
  color: var(--accent);
  padding-inline: 0.35rem;
  box-shadow: none;
}

.btn--plain:hover {
  border-color: transparent;
  background: none;
  color: var(--accent-hover);
  text-decoration: underline;
  text-underline-offset: 3px;
  transform: none;
  box-shadow: none;
}

@media (max-width: 480px) {
  .actions { gap: 0.6rem; }
  .actions .btn { width: 100%; }
  .actions .btn--plain { width: auto; }
}

/* ==========================================================================
   8. Grids, Botanical Cards, Key-Value Lists & Diagrams
   ========================================================================== */

.grid {
  display: grid;
  gap: 1.25rem;
}

.grid--2 { grid-template-columns: repeat(auto-fit, minmax(min(260px, 100%), 1fr)); }
.grid--3 { grid-template-columns: repeat(auto-fit, minmax(min(220px, 100%), 1fr)); }

.card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.45rem 1.55rem;
  box-shadow: var(--shadow-sm);
  transition: border-color 0.22s var(--ease-nature), box-shadow 0.22s var(--ease-nature), transform 0.22s var(--ease-nature);
}

.card:hover {
  border-color: var(--accent-line);
  box-shadow: var(--shadow-md);
}

.card h3 {
  margin-top: 0;
  margin-bottom: 0.45rem;
}

.card p {
  font-size: 0.96rem;
  color: var(--ink-2);
  margin-bottom: 0.65rem;
  max-width: none;
}

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

/* Key-Value Lists */
.kv {
  margin: 0;
}

.kv div {
  display: flex;
  gap: 0.85rem;
  padding: 0.68rem 0;
  border-top: 1px solid var(--line);
  font-size: 0.95rem;
}

.kv div:first-child {
  border-top: 0;
}

.kv dt {
  flex: 0 0 9.5rem;
  font-family: var(--serif);
  font-weight: 600;
  font-size: 1.02rem;
  color: var(--ink);
}

.kv dd {
  margin: 0;
  color: var(--ink-2);
}

.kv--wide dt {
  flex-basis: 14.5rem;
}

@media (max-width: 620px) {
  .kv div { flex-direction: column; gap: 0.18rem; }
  .kv dt  { flex: none; }
}

/* Evidence Diagrams */
.diagram {
  margin: 1.65rem 0 0;
}

.diagram img {
  display: block;
  width: 100%;
  height: auto;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  padding: 0.5rem;
  box-shadow: var(--shadow-xs);
}

.diagram figcaption {
  margin-top: 0.55rem;
  font-size: 0.86rem;
  color: var(--muted);
  text-align: center;
}

.diagram + .diagram {
  margin-top: 1.35rem;
}

/* ==========================================================================
   9. Botanical Tabs, Stacked Definition Lists & Status Chips
   ========================================================================== */

.tabs {
  margin-top: 1.75rem;
}

.tablist {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  padding: 0.35rem;
  margin: 0 0 1.35rem;
  background: var(--soft);
  border: 1px solid var(--line);
  border-radius: var(--radius-pill);
  width: fit-content;
  max-width: 100%;
}

.tab {
  font: inherit;
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  background: transparent;
  color: var(--ink-2);
  border: 1px solid transparent;
  border-radius: var(--radius-pill);
  padding: 0.48rem 1.05rem;
  transition: background-color 0.18s var(--ease-nature), color 0.18s var(--ease-nature), box-shadow 0.18s var(--ease-nature);
}

.tab:hover {
  color: var(--accent-hover);
  background: rgba(255, 254, 251, 0.65);
}

.tab[aria-selected="true"] {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
  box-shadow: 0 4px 12px -2px rgba(27, 94, 70, 0.32);
}

.panel {
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 1.65rem 1.8rem;
  background: var(--surface);
  box-shadow: var(--shadow-sm);
}

.panel > :last-child { margin-bottom: 0; }
.panel h3 { margin-top: 0; margin-bottom: 0.55rem; }

.panel__sub {
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--muted);
  margin: 1.25rem 0 0.45rem;
}

.panel ul { margin: 0 0 0.9rem; padding-left: 1.15rem; }
.panel li { margin-bottom: 0.28rem; font-size: 0.95rem; color: var(--ink-2); }

.js .panel[data-panel]:not(.is-active) { display: none; }
.no-js .tablist { display: none; }
.no-js .panel   { margin-bottom: 1rem; }

.panel__cols {
  display: grid;
  gap: 0.85rem 2.2rem;
  grid-template-columns: repeat(auto-fit, minmax(min(220px, 100%), 1fr));
}

.panel__cols > div { min-width: 0; }
.panel__cols p { max-width: none; }
.panel__cols > div > :last-child { margin-bottom: 0; }

.owner {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.78rem;
  font-weight: 650;
  letter-spacing: 0.03em;
  border-radius: var(--radius-pill);
  padding: 0.2rem 0.65rem;
  border: 1px solid var(--line-2);
  color: var(--ink-2);
  background: var(--soft);
}

.owner--human { border-color: #c9b8d8; background: #f6f1fa; color: #5b3f75; }
.owner--ai    { border-color: var(--accent-line); background: var(--accent-soft); color: var(--accent-hover); }

/* Stacked Definition Lists */
.stack {
  margin: 1.4rem 0 0;
  display: grid;
  gap: 0.9rem;
}

.stack > * {
  min-width: 0;
}

.stack div {
  min-width: 0;
  padding: 1.15rem 1.35rem;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-xs);
  transition: border-color 0.2s var(--ease-nature), box-shadow 0.2s var(--ease-nature);
}

.stack div:hover {
  border-color: var(--accent-line);
  box-shadow: var(--shadow-sm);
}

.stack dt {
  font-family: var(--serif);
  font-weight: 600;
  font-size: 1.08rem;
  color: var(--ink);
  margin-bottom: 0.3rem;
  overflow-wrap: anywhere;
}

.stack dd {
  margin: 0;
  color: var(--ink-2);
  max-width: var(--measure);
  font-size: 0.97rem;
  overflow-wrap: anywhere;
}

@media (min-width: 760px) {
  .stack--2 {
    grid-template-columns: 1fr 1fr;
    gap: 1.1rem 1.35rem;
  }
}

.chip {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 620;
  border-radius: var(--radius-pill);
  padding: 0.2rem 0.68rem;
  background: var(--soft);
  color: var(--ink-2);
  border: 1px solid var(--line);
}

.case__status {
  display: inline-block;
  font-size: 0.84rem;
  color: var(--warn);
  background: var(--warn-soft);
  border: 1px solid var(--warn-line);
  border-radius: var(--radius-xs);
  padding: 0.42rem 0.75rem;
}

/* ==========================================================================
   10. Footer, Glossary Filter, Data Tables & Code Blocks
   ========================================================================== */

.site-foot {
  border-top: 1px solid var(--line);
  background: linear-gradient(180deg, var(--soft) 0%, var(--soft-2) 100%);
  padding-block: 3rem 3.4rem;
  margin-top: 0;
  font-size: 0.9rem;
  color: var(--muted);
}

.site-foot .wrap {
  display: grid;
  gap: 1.6rem;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
}

.site-foot h4 {
  font-family: var(--serif);
  font-size: 0.95rem;
  text-transform: none;
  letter-spacing: 0;
  color: var(--ink);
  margin-bottom: 0.6rem;
}

.site-foot ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.38rem;
}

.site-foot li {
  margin: 0;
}

.site-foot a {
  color: var(--ink-2);
  text-decoration: none;
}

.site-foot a:hover {
  color: var(--accent-hover);
  text-decoration: underline;
}

.site-foot__end {
  border-top: 1px solid var(--line);
  margin-top: 2rem;
  padding-top: 1.2rem;
}

/* Glossary Filter & Terms */
.filter {
  font: inherit;
  width: min(30rem, 100%);
  padding: 0.65rem 1.05rem;
  background: var(--surface);
  color: var(--ink);
  border: 1px solid var(--line-2);
  border-radius: var(--radius-pill);
  margin-bottom: 1.6rem;
  box-shadow: var(--shadow-xs);
  transition: border-color 0.2s var(--ease-nature), box-shadow 0.2s var(--ease-nature);
}

.filter:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(27, 94, 70, 0.14);
  outline: none;
}

.terms {
  display: grid;
  gap: 0;
  margin: 0;
}

.terms > div {
  padding: 1.05rem 0;
  border-top: 1px solid var(--line);
}

.terms dt {
  font-family: var(--serif);
  font-weight: 600;
  font-size: 1.1rem;
  color: var(--ink);
  margin-bottom: 0.2rem;
}

.terms dd {
  margin: 0;
  color: var(--ink-2);
  font-size: 0.96rem;
  max-width: var(--measure);
}

.terms > div[hidden] {
  display: none;
}

/* Data Tables & Code Blocks */
.table-wrap {
  overflow-x: auto;
  margin: 1.5rem 0 1.9rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: var(--shadow-xs);
}

table.data {
  border-collapse: collapse;
  width: 100%;
  min-width: 38rem;
  font-size: 0.94rem;
}

table.data caption {
  text-align: left;
  padding: 0.85rem 1.1rem 0.6rem;
  background: var(--surface-tint);
  border-bottom: 1px solid var(--line);
}

table.data th,
table.data td {
  padding: 0.82rem 1.05rem;
  text-align: left;
  vertical-align: top;
  border-top: 1px solid var(--line);
}

table.data thead th {
  background: var(--soft);
  border-top: 0;
  font-weight: 650;
  color: var(--ink);
  font-size: 0.84rem;
}

table.data tbody th {
  font-weight: 650;
  color: var(--ink);
  width: 22%;
}

table.data td {
  color: var(--ink-2);
}

table.data tbody tr:hover {
  background: rgba(227, 239, 232, 0.28);
}

table.data tbody tr:last-child th,
table.data tbody tr:last-child td {
  background: var(--accent-soft);
}

.table-wrap.is-stacked {
  overflow-x: visible;
  border: 0;
  background: transparent;
  box-shadow: none;
}

.table-wrap.is-stacked table.data {
  min-width: 0;
  width: 100%;
  display: block;
}

.table-wrap.is-stacked table.data caption {
  display: block;
  border-radius: var(--radius-sm);
  border: 1px solid var(--line);
  margin-bottom: 0.85rem;
  padding: 0.75rem 0.95rem;
}

.table-wrap.is-stacked table.data thead {
  display: none;
}

.table-wrap.is-stacked table.data tbody {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

.table-wrap.is-stacked table.data tbody tr {
  display: block;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  padding: 0.35rem 0;
  box-shadow: var(--shadow-xs);
}

.table-wrap.is-stacked table.data tbody th,
.table-wrap.is-stacked table.data tbody td {
  display: block;
  width: 100%;
  padding: 0.52rem 0.95rem;
  border-top: 1px solid var(--line-soft);
}

.table-wrap.is-stacked table.data tbody tr > :first-child {
  border-top: 0;
  padding-top: 0.6rem;
  padding-bottom: 0.55rem;
  background: var(--soft);
  font-weight: 650;
  color: var(--ink);
}

.table-wrap.is-stacked table.data tbody td[data-label]::before,
.table-wrap.is-stacked table.data tbody tr > th:not(:first-child)[data-label]::before {
  content: attr(data-label);
  display: block;
  font-size: 0.73rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--muted);
  margin-bottom: 0.18rem;
}

@media (max-width: 960px) {
  .table-wrap {
    overflow-x: visible;
    border: 0;
    background: transparent;
    box-shadow: none;
  }

  table.data {
    min-width: 0;
    width: 100%;
    display: block;
  }

  table.data caption {
    display: block;
    border-radius: var(--radius-sm);
    border: 1px solid var(--line);
    margin-bottom: 0.85rem;
    padding: 0.75rem 0.95rem;
  }

  table.data thead {
    display: none;
  }

  table.data tbody {
    display: flex;
    flex-direction: column;
    gap: 0.85rem;
  }

  table.data tbody tr {
    display: block;
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: var(--radius-sm);
    padding: 0.35rem 0;
    box-shadow: var(--shadow-xs);
  }

  table.data tbody th,
  table.data tbody td {
    display: block;
    width: 100%;
    padding: 0.52rem 0.95rem;
    border-top: 1px solid var(--line-soft);
  }

  table.data tbody tr > :first-child {
    border-top: 0;
    padding-top: 0.6rem;
    padding-bottom: 0.55rem;
    background: var(--soft);
    font-weight: 650;
    color: var(--ink);
  }

  table.data tbody td[data-label]::before,
  table.data tbody tr > th:not(:first-child)[data-label]::before {
    content: attr(data-label);
    display: block;
    font-size: 0.73rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--muted);
    margin-bottom: 0.18rem;
  }
}

pre.code {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  padding: 1rem 1.2rem;
  overflow-x: auto;
  font-size: 0.86rem;
  line-height: 1.55;
  max-width: none;
  box-shadow: var(--shadow-xs);
}

pre.code code {
  font-size: inherit;
  background: none;
  border: 0;
  padding: 0;
}

ol.steps {
  padding-left: 1.35rem;
  margin: 1.25rem 0 1.65rem;
}

ol.steps > li {
  margin: 0 0 1.1rem;
  padding-left: 0.35rem;
}

ol.steps > li > pre.code {
  margin: 0.65rem 0;
}

@media (max-width: 800px) {
  .tab { padding-block: 0.58rem; }
}

/* ==========================================================================
   11. Stat Cards (Clover K3 Architecture & Benchmark Metrics)
   ========================================================================== */

.stat-grid {
  display: grid;
  gap: 1.1rem;
  margin: 1.75rem 0;
  grid-template-columns: repeat(auto-fit, minmax(min(205px, 100%), 1fr));
}

.stat-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-top: 3px solid var(--accent);
  border-radius: var(--radius);
  padding: 1.25rem 1.35rem;
  box-shadow: var(--shadow-sm);
}

.stat-card__num {
  font-family: var(--serif);
  font-size: clamp(1.5rem, 2.8vw, 2.02rem);
  font-weight: 700;
  color: var(--accent-hover);
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin-bottom: 0.3rem;
}

.stat-card__label {
  font-size: 0.9rem;
  font-weight: 650;
  color: var(--ink);
  margin-bottom: 0.25rem;
}

.stat-card__note {
  font-size: 0.82rem;
  color: var(--muted);
  line-height: 1.48;
}

/* ==========================================================================
   12. Clover AI Interactive Chat & Full-Page Studio (/ai/)
   ========================================================================== */

.k3-chat-shell {
  margin-top: 1.4rem;
  border: 1px solid var(--line-2);
  border-radius: var(--radius);
  background: var(--surface);
  color: var(--ink);
  overflow: hidden;
  box-shadow: var(--shadow-md);
}

.k3-chat-head {
  padding: 0.85rem 1.2rem;
  background: var(--surface);
  border-bottom: 1px solid var(--line);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.k3-chat-title {
  font-family: var(--serif);
  font-weight: 600;
  font-size: 1.06rem;
  letter-spacing: -0.015em;
  color: var(--ink);
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.k3-chat-title span { color: var(--accent); font-weight: 600; }

.k3-agent-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.75rem;
  font-weight: 650;
  color: var(--accent-hover);
  background: var(--accent-soft);
  border: 1px solid var(--accent-line);
  padding: 0.16rem 0.58rem;
  border-radius: var(--radius-pill);
}

.k3-agent-badge__dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
}

.k3-agent-trace {
  margin-bottom: 0.55rem;
  padding: 0.48rem 0.75rem;
  background: var(--accent-tint);
  border: 1px solid var(--accent-line);
  border-radius: var(--radius-xs);
  font-size: 0.81rem;
  color: var(--ink-2);
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem 0.75rem;
  align-items: center;
}

.k3-agent-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  font-weight: 650;
  color: var(--accent-hover);
}

.k3-mm-bar {
  padding: 0.55rem 1.2rem;
  background: var(--surface);
  border-bottom: 1px solid var(--line);
  display: flex;
  align-items: center;
  gap: 0.45rem;
  flex-wrap: wrap;
  font-size: 0.81rem;
  color: var(--muted);
}

.k3-mm-bar__label {
  font-weight: 650;
  color: var(--ink-2);
  margin-right: 0.2rem;
}

.k3-mm-chip {
  background: var(--soft);
  color: var(--ink-2);
  border: 1px solid var(--line-2);
  border-radius: var(--radius-pill);
  padding: 0.26rem 0.68rem;
  font: inherit;
  font-size: 0.79rem;
  font-weight: 600;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 0.32rem;
  transition: border-color 0.15s var(--ease-nature), color 0.15s var(--ease-nature), background-color 0.15s var(--ease-nature);
}

.k3-mm-chip:hover {
  border-color: var(--accent-line);
  color: var(--accent-hover);
  background: var(--accent-soft);
}

.k3-controls {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.k3-controls button,
.k3-foot button,
.k3-preview-bar button {
  background: var(--surface);
  color: var(--ink-2);
  border: 1px solid var(--line-2);
  border-radius: var(--radius-xs);
  padding: 0.42rem 0.8rem;
  font: inherit;
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 0.38rem;
  transition: border-color 0.15s var(--ease-nature), color 0.15s var(--ease-nature), background-color 0.15s var(--ease-nature);
}

.k3-controls button:hover,
.k3-foot button:hover,
.k3-preview-bar button:hover {
  border-color: var(--accent-line);
  color: var(--accent-hover);
}

.k3-chat-body {
  display: flex;
  height: 480px;
  max-height: 480px;
  background: var(--soft);
}

.k3-sidebar {
  width: 225px;
  flex: 0 0 225px;
  background: var(--surface);
  border-right: 1px solid var(--line);
  display: flex;
  flex-direction: column;
  min-height: 0;
}

.k3-sidebar__head {
  padding: 0.65rem 0.85rem;
  border-bottom: 1px solid var(--line);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  font-size: 0.82rem;
  font-weight: 650;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.k3-add-btn {
  width: 28px;
  height: 28px;
  border-radius: 7px;
  border: 1px solid var(--line-2);
  background: var(--surface);
  color: var(--ink);
  font-size: 1.1rem;
  font-weight: 600;
  line-height: 1;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
}

.k3-add-btn:hover {
  border-color: var(--accent);
  background: var(--accent-soft);
  color: var(--accent-hover);
}

.k3-session-list {
  flex: 1;
  min-height: 0;
  overflow-y: auto;
  padding: 0.45rem;
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.k3-session-item {
  width: 100%;
  text-align: left;
  background: transparent;
  border: 1px solid transparent;
  border-radius: 8px;
  padding: 0.5rem 0.65rem;
  font: inherit;
  font-size: 0.86rem;
  color: var(--ink-2);
  cursor: pointer;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  display: block;
}

.k3-session-item:hover {
  background: var(--soft);
  color: var(--ink);
}

.k3-session-item.is-active {
  background: var(--accent-soft);
  border-color: var(--accent-line);
  color: var(--accent-hover);
  font-weight: 650;
}

.k3-chat-main {
  flex: 1;
  min-width: 0;
  min-height: 0;
  display: flex;
  flex-direction: column;
}

.k3-log {
  flex: 1;
  min-height: 0;
  overflow-y: auto;
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 0.9rem;
  background: var(--soft);
}

@media (max-width: 720px) {
  .k3-chat-body { flex-direction: column; height: 560px; max-height: 560px; }
  .k3-sidebar { width: 100%; flex: none; border-right: 0; border-bottom: 1px solid var(--line); }
  .k3-session-list { flex-direction: row; overflow-x: auto; max-height: none; }
  .k3-session-item { width: auto; max-width: 180px; }
}

.k3-attach-chip {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.28rem 0.6rem;
  border-radius: 7px;
  font-size: 0.82rem;
  font-weight: 600;
  background: rgba(255, 255, 255, 0.18);
  border: 1px solid rgba(255, 255, 255, 0.32);
  margin-bottom: 0.45rem;
}

.k3-icon-btn {
  width: 40px;
  height: 40px;
  padding: 0 !important;
  justify-content: center;
  flex: 0 0 40px;
  border-radius: 9px !important;
}

.k3-icon-btn.is-listening {
  border-color: var(--accent) !important;
  background: var(--accent-soft) !important;
  color: var(--accent-hover) !important;
}

.k3-msg {
  max-width: 82%;
  padding: 0.9rem 1.15rem;
  border-radius: var(--radius);
  line-height: 1.65;
  font-size: 0.96rem;
  word-wrap: break-word;
}

.k3-msg p {
  max-width: none;
  margin: 0 0 0.65rem 0;
  white-space: normal;
}

.k3-msg p:last-child { margin-bottom: 0; }

.k3-msg ul {
  margin: 0.35rem 0 0.65rem 1.25rem;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.42rem;
}

.k3-msg ul:last-child { margin-bottom: 0; }
.k3-msg li { line-height: 1.56; }
.k3-msg strong { font-weight: 650; color: var(--ink); }

.k3-msg pre.k3-code {
  margin: 0.55rem 0 0.75rem 0;
  padding: 0.9rem 1.05rem;
  border-radius: var(--radius-xs);
  background: #142019;
  color: #f2eee4;
  overflow-x: auto;
  font-family: var(--mono);
  font-size: 0.87rem;
  line-height: 1.54;
  white-space: pre;
  position: relative;
}

.k3-msg pre.k3-code:last-child { margin-bottom: 0; }
.k3-msg pre.k3-code code { background: none; color: inherit; padding: 0; font: inherit; border: 0; }

.k3-code-wrap {
  position: relative;
  margin: 0.55rem 0 0.75rem 0;
}

.k3-code-wrap pre.k3-code { margin: 0; padding-top: 2rem; }

.k3-copy-code-btn {
  position: absolute;
  top: 0.4rem;
  right: 0.5rem;
  z-index: 2;
  background: rgba(255, 255, 255, 0.12);
  color: #e7e1d3;
  border: 1px solid rgba(255, 255, 255, 0.22);
  border-radius: 6px;
  padding: 0.18rem 0.55rem;
  font-size: 0.75rem;
  font-weight: 600;
  cursor: pointer;
}

.k3-copy-code-btn:hover { background: rgba(255, 255, 255, 0.24); color: #fff; }

.k3-figure {
  margin: 0.65rem 0 0.8rem 0;
  padding: 0.65rem;
  background: var(--soft);
  border: 1px solid var(--line-2);
  border-radius: var(--radius-sm);
  text-align: center;
}

.k3-figure img, .k3-figure svg {
  display: block;
  max-width: 100%;
  height: auto;
  margin: 0 auto;
  border-radius: 7px;
  background: var(--surface);
}

.k3-figcaption {
  margin-top: 0.45rem;
  font-size: 0.82rem;
  color: var(--muted);
  line-height: 1.4;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  flex-wrap: wrap;
  text-align: left;
}

.k3-dl-link {
  font-size: 0.78rem;
  font-weight: 650;
  color: var(--accent-hover);
  text-decoration: none;
  padding: 0.15rem 0.5rem;
  border: 1px solid var(--accent-line);
  border-radius: 6px;
  background: var(--accent-soft);
}

.k3-dl-link:hover { background: var(--accent); color: #fff; }

.k3-msg table.k3-table {
  width: 100%;
  border-collapse: collapse;
  margin: 0.55rem 0 0.75rem 0;
  font-size: 0.88rem;
}

.k3-msg table.k3-table th,
.k3-msg table.k3-table td {
  border: 1px solid var(--line-2);
  padding: 0.42rem 0.65rem;
  text-align: left;
}

.k3-msg table.k3-table th {
  background: var(--soft);
  font-weight: 650;
  color: var(--ink);
}

.k3-math-inline, .k3-math-block {
  font-family: "Cambria Math", "STIX Two Math", Georgia, serif;
  color: var(--ink);
}

.k3-math-block {
  display: block;
  text-align: center;
  margin: 0.5rem 0;
  padding: 0.45rem 0.75rem;
  background: var(--soft);
  border-radius: 7px;
  font-size: 1.02rem;
}

.k3-msg-actions {
  margin-top: 0.5rem;
  padding-top: 0.4rem;
  border-top: 1px solid var(--line);
  display: flex;
  align-items: center;
  gap: 0.45rem;
  justify-content: flex-end;
}

.k3-action-btn {
  background: transparent;
  color: var(--muted);
  border: 1px solid transparent;
  border-radius: 6px;
  padding: 0.16rem 0.48rem;
  font: inherit;
  font-size: 0.76rem;
  font-weight: 600;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 0.28rem;
}

.k3-action-btn:hover { color: var(--accent-hover); border-color: var(--line-2); background: var(--soft); }

.k3-msg--user {
  align-self: flex-end;
  background: var(--accent);
  color: #fff;
  border-bottom-right-radius: 4px;
  box-shadow: var(--shadow-xs);
}

.k3-msg--user p,
.k3-msg--user strong {
  color: #fff;
}

.k3-msg--bot {
  align-self: flex-start;
  background: var(--surface);
  color: var(--ink);
  border: 1px solid var(--line);
  border-bottom-left-radius: 4px;
  box-shadow: var(--shadow-xs);
}

.k3-msg img.k3-chat-thumb {
  display: block;
  max-width: 240px;
  max-height: 180px;
  border-radius: 8px;
  margin-bottom: 0.5rem;
  border: 1px solid rgba(255, 255, 255, 0.25);
}

@keyframes clover-leaf-spin {
  from { transform: rotate(0deg); }
  to   { transform: rotate(360deg); }
}

.k3-clover-loader {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  color: var(--ink-2);
  font-size: 0.93rem;
}

.k3-clover-loader svg { width: 28px; height: 28px; display: block; }

.k3-clover-loader__wheel {
  transform-origin: 50px 44px;
  animation: clover-leaf-spin 2.2s linear infinite;
}

.k3-preview-bar {
  padding: 0.5rem 1.2rem;
  background: var(--accent-soft);
  border-top: 1px solid var(--accent-line);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  font-size: 0.85rem;
  color: var(--ink);
}

.k3-preview-bar[hidden] { display: none !important; }
.k3-preview-bar__info { display: flex; align-items: center; gap: 0.6rem; }

.k3-preview-bar img {
  width: 36px;
  height: 36px;
  object-fit: cover;
  border-radius: 6px;
  border: 1px solid var(--line-2);
}

.k3-foot {
  padding: 0.85rem 1.2rem;
  background: var(--surface);
  border-top: 1px solid var(--line);
  display: flex;
  gap: 0.6rem;
  align-items: flex-end;
}

.k3-foot textarea {
  flex: 1;
  background: var(--soft);
  color: var(--ink);
  border: 1px solid var(--line-2);
  border-radius: 9px;
  padding: 0.62rem 0.85rem;
  font: inherit;
  font-size: 0.95rem;
  resize: none;
  min-height: 44px;
  max-height: 130px;
  line-height: 1.45;
}

.k3-foot textarea:focus { outline: none; border-color: var(--accent); background: var(--surface); }

.k3-foot button.k3-send {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
  font-weight: 650;
  padding: 0.62rem 1.15rem;
  font-size: 0.9rem;
}

.k3-foot button.k3-send:hover { background: var(--accent-hover); border-color: var(--accent-hover); color: #fff; }
.k3-foot button.k3-send:disabled { opacity: 0.55; cursor: default; }

.k3-modal-backdrop {
  position: fixed;
  inset: 0;
  z-index: 200;
  background: rgba(19, 32, 24, 0.52);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
}

.k3-modal-backdrop[hidden] { display: none !important; pointer-events: none; }

.k3-modal-dialog {
  width: min(860px, 100%);
  max-height: 92vh;
  display: flex;
  flex-direction: column;
}

.k3-modal-dialog .k3-chat-shell { margin-top: 0; box-shadow: var(--shadow-lg); }
.k3-modal-dialog .k3-log { height: min(58vh, 520px); }

.k3-bot-turn {
  align-self: flex-start;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  max-width: 82%;
  width: auto;
}

.k3-bot-turn > .k3-msg { max-width: 100%; }

.k3-below-actions {
  margin-top: 0.28rem;
  padding-left: 0.2rem;
  display: flex;
  align-items: center;
  gap: 0.2rem;
  color: var(--muted);
}

.k3-icon-action {
  width: 28px;
  height: 28px;
  border-radius: 6px;
  border: 0;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  transition: color 0.15s var(--ease-nature), background-color 0.15s var(--ease-nature);
}

.k3-icon-action:hover { color: var(--ink); background: var(--soft-2); }
.k3-icon-action.is-active { color: var(--accent); }
.k3-icon-action svg { width: 15px; height: 15px; display: block; }

@keyframes clover-dot-slow {
  0%, 20%  { opacity: 0.22; transform: translateY(0); }
  50%      { opacity: 1; transform: translateY(-1.5px); }
  80%, 100%{ opacity: 0.22; transform: translateY(0); }
}

.clover-dots-loader {
  display: inline-flex;
  align-items: center;
  gap: 0.18rem;
  font-size: 1.35rem;
  font-weight: 700;
  line-height: 1;
  color: var(--ink-2);
  padding: 0.1rem 0.25rem;
  letter-spacing: 0.08em;
}

.clover-dots-loader span {
  display: inline-block;
  animation: clover-dot-slow 3.6s ease-in-out infinite;
}

.clover-dots-loader span:nth-child(2) { animation-delay: 0.6s; }
.clover-dots-loader span:nth-child(3) { animation-delay: 1.2s; }
.clover-dots-loader span:nth-child(4) { animation-delay: 1.8s; }

/* Dedicated Full-Page Clover Interface (/ai/) */
html:has(body.clover-app-body) {
  height: 100%;
  overflow: hidden;
}

body.clover-app-body {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  max-height: 100%;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  background: var(--bg);
}

body.clover-app-body .site-head {
  flex: 0 0 auto;
}

.clover-app {
  flex: 1;
  min-height: 0;
  display: flex;
  width: 100%;
  height: 100%;
  overflow: hidden;
  background: var(--bg);
  position: relative;
}

.clover-sidebar-backdrop {
  display: none;
}

.clover-sidebar {
  width: 268px;
  flex: 0 0 268px;
  background: var(--soft);
  border-right: 1px solid var(--line);
  display: flex;
  flex-direction: column;
  min-height: 0;
  transform: none;
  transition: margin-left 0.22s var(--ease-nature);
}

.clover-sidebar.is-collapsed {
  margin-left: -268px;
}

.clover-sidebar__top {
  padding: 0.85rem 0.9rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  border-bottom: 1px solid var(--line);
}

.clover-new-chat-btn {
  flex: 1;
  background: var(--surface);
  color: var(--ink);
  border: 1px solid var(--line-2);
  border-radius: var(--radius-pill);
  padding: 0.52rem 0.85rem;
  font: inherit;
  font-size: 0.88rem;
  font-weight: 650;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  box-shadow: var(--shadow-xs);
  transition: border-color 0.18s var(--ease-nature), color 0.18s var(--ease-nature), background-color 0.18s var(--ease-nature);
}

.clover-new-chat-btn:hover {
  border-color: var(--accent);
  color: var(--accent-hover);
  background: var(--accent-tint);
}

.clover-new-chat-btn__plus {
  font-size: 1.15rem;
  line-height: 1;
  font-weight: 700;
  color: var(--accent);
}

.clover-sidebar__label {
  padding: 0.65rem 1rem 0.3rem;
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.clover-session-list {
  flex: 1;
  min-height: 0;
  overflow-y: auto;
  padding: 0.35rem 0.6rem 0.8rem;
  display: flex;
  flex-direction: column;
  gap: 0.22rem;
}

.clover-session-row {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  border-radius: var(--radius-xs);
  border: 1px solid transparent;
  padding: 0.12rem 0.25rem 0.12rem 0.35rem;
  transition: background-color 0.15s var(--ease-nature), border-color 0.15s var(--ease-nature);
}

.clover-session-row:hover {
  background: rgba(255, 254, 251, 0.72);
}

.clover-session-row.is-active {
  background: var(--surface);
  border-color: var(--accent-line);
  box-shadow: var(--shadow-xs);
}

.clover-session-select {
  flex: 1;
  min-width: 0;
  text-align: left;
  background: transparent;
  border: 0;
  padding: 0.42rem 0.35rem;
  font: inherit;
  font-size: 0.87rem;
  color: var(--ink-2);
  cursor: pointer;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.clover-session-row.is-active .clover-session-select {
  color: var(--accent-hover);
  font-weight: 650;
}

.clover-session-del {
  width: 24px;
  height: 24px;
  flex: 0 0 24px;
  border-radius: 6px;
  border: 0;
  background: transparent;
  color: var(--muted);
  font-size: 0.98rem;
  font-weight: 650;
  line-height: 1;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  opacity: 0.65;
  transition: opacity 0.15s var(--ease-nature), background-color 0.15s var(--ease-nature), color 0.15s var(--ease-nature);
}

.clover-session-row:hover .clover-session-del,
.clover-session-row.is-active .clover-session-del {
  opacity: 1;
}

.clover-session-del:hover {
  background: rgba(190, 38, 38, 0.12);
  color: #b91c1c;
}

.clover-main {
  flex: 1;
  min-width: 0;
  min-height: 0;
  display: flex;
  flex-direction: column;
  background: var(--bg);
}

.clover-topbar {
  padding: 0.6rem 1.25rem;
  border-bottom: 1px solid var(--line);
  background: var(--glass);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
}

.clover-topbar__left {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.clover-sidebar-toggle {
  width: 34px;
  height: 34px;
  border-radius: var(--radius-xs);
  border: 1px solid var(--line-2);
  background: var(--surface);
  color: var(--ink-2);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.clover-sidebar-toggle:hover {
  border-color: var(--accent-line);
  color: var(--accent-hover);
  background: var(--accent-tint);
}

.clover-topbar__brand {
  display: inline-flex;
  align-items: center;
  gap: 0.48rem;
  font-family: var(--serif);
  font-weight: 600;
  font-size: 1.06rem;
  color: var(--ink);
}

.clover-topbar__brand svg { width: 22px; height: 22px; }

.clover-topbar__right {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-shrink: 0;
}

.clover-cpu-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.38rem;
  font-size: 0.76rem;
  font-weight: 650;
  line-height: 1.2;
  padding: 0.28rem 0.65rem;
  border-radius: var(--radius-pill);
  background: var(--warn-soft);
  color: var(--warn);
  border: 1px solid var(--warn-line);
  white-space: nowrap;
}

.clover-cpu-pill::before {
  content: "";
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #c48f3b;
  flex-shrink: 0;
}

.clover-cpu-disclaimer {
  flex: 0 0 auto;
  width: 100%;
  background: var(--warn-soft);
  border-bottom: 1px solid var(--warn-line);
  color: var(--warn);
  padding: 0.52rem 1.25rem;
  font-size: 0.84rem;
  line-height: 1.45;
  display: flex;
  align-items: center;
  justify-content: center;
}

.clover-cpu-disclaimer__inner {
  display: block;
  width: min(820px, 100%);
  max-width: min(820px, 100%);
  margin: 0;
}

.clover-cpu-disclaimer strong {
  color: #69430b;
  font-weight: 700;
}

.clover-composer-note {
  display: block;
  width: min(820px, 100%);
  max-width: min(820px, 100%);
  margin: 0.38rem 0 0;
  padding: 0 0.25rem;
  font-size: 0.76rem;
  line-height: 1.35;
  color: var(--muted);
  text-align: center;
}

.clover-loader-note {
  margin: 0.25rem 0 0;
  font-size: 0.8rem;
  line-height: 1.38;
  color: var(--muted);
}

.clover-stream {
  flex: 1;
  min-height: 0;
  overflow-y: auto;
  padding: 1.5rem 1.25rem 1rem;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.clover-stream__inner {
  width: min(820px, 100%);
  display: flex;
  flex-direction: column;
  gap: 1.15rem;
}

.clover-composer-wrap {
  flex: 0 0 auto;
  padding: 0.5rem 1.25rem calc(0.9rem + env(safe-area-inset-bottom, 0px));
  background: var(--bg);
  display: flex;
  flex-direction: column;
  align-items: center;
}

.clover-composer-card {
  width: min(820px, 100%);
  background: var(--surface);
  border: 1px solid var(--line-2);
  border-radius: 18px;
  padding: 0.55rem 0.7rem;
  box-shadow: var(--shadow-sm);
  transition: border-color 0.18s var(--ease-nature), background-color 0.18s var(--ease-nature), box-shadow 0.18s var(--ease-nature);
}

.clover-composer-card:focus-within {
  border-color: var(--accent);
  background: var(--surface);
  box-shadow: 0 8px 26px -4px rgba(27, 94, 70, 0.15);
}

.clover-composer-row {
  display: flex;
  align-items: flex-end;
  gap: 0.5rem;
}

.clover-composer-row textarea {
  flex: 1;
  min-width: 0;
  background: transparent;
  color: var(--ink);
  border: 0;
  padding: 0.45rem 0.35rem;
  font: inherit;
  font-size: 1rem;
  resize: none;
  min-height: 38px;
  max-height: 150px;
  line-height: 1.48;
}

.clover-composer-row textarea:focus { outline: none; }

.clover-composer-btn {
  width: 38px;
  height: 38px;
  flex: 0 0 38px;
  border-radius: 10px;
  border: 1px solid var(--line-2);
  background: var(--soft);
  color: var(--ink-2);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: border-color 0.15s var(--ease-nature), color 0.15s var(--ease-nature), background-color 0.15s var(--ease-nature);
}

.clover-composer-btn:hover {
  border-color: var(--accent-line);
  color: var(--accent-hover);
  background: var(--accent-soft);
}

.clover-composer-btn.is-listening {
  border-color: var(--accent);
  background: var(--accent-soft);
  color: var(--accent-hover);
}

.clover-send-btn {
  height: 38px;
  border-radius: 10px;
  border: 1px solid var(--accent);
  background: var(--accent);
  color: #fff;
  font: inherit;
  font-size: 0.88rem;
  font-weight: 650;
  padding: 0 0.95rem;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 0.42rem;
  transition: background-color 0.15s var(--ease-nature), border-color 0.15s var(--ease-nature);
}

.clover-send-btn:hover { background: var(--accent-hover); border-color: var(--accent-hover); }
.clover-send-btn:disabled { opacity: 0.55; cursor: default; }

.clover-send-icon {
  width: 19px;
  height: 19px;
  display: block;
  flex: none;
}

.clover-send-icon__stem {
  fill: none;
  stroke: rgba(255, 255, 255, 0.78);
  stroke-width: 4;
  stroke-linecap: round;
}

.clover-send-icon__leaf {
  fill: #ffffff;
  stroke: #ffffff;
  stroke-width: 1.8;
  stroke-linejoin: round;
}

.clover-send-icon__wheel {
  transform-origin: 50px 44px;
  animation: clover-leaf-spin 9s linear infinite;
}

@media (max-width: 760px) {
  .clover-sidebar {
    position: fixed;
    top: 0;
    bottom: 0;
    left: 0;
    z-index: 100;
    width: min(272px, 80vw);
    flex: 0 0 auto;
    margin-left: 0 !important;
    transform: translateX(-105%);
    box-shadow: none;
    pointer-events: none;
  }
  .clover-sidebar.is-mobile-open {
    margin-left: 0 !important;
    transform: translateX(0) !important;
    box-shadow: var(--shadow-lg) !important;
    pointer-events: auto !important;
  }
  .clover-sidebar.is-collapsed {
    margin-left: 0 !important;
    transform: translateX(-105%) !important;
    box-shadow: none !important;
    pointer-events: none;
  }
  .clover-sidebar-backdrop.is-open {
    display: block;
    position: fixed;
    inset: 0;
    z-index: 95;
    background: rgba(19, 32, 24, 0.35);
    backdrop-filter: blur(2px);
  }
  .clover-topbar { flex: 0 0 auto; padding: 0.55rem 0.85rem; }
  .clover-cpu-pill { font-size: 0.71rem; padding: 0.22rem 0.5rem; }
  .clover-cpu-disclaimer { padding: 0.45rem 0.85rem; font-size: 0.78rem; line-height: 1.38; }
  .clover-stream { flex: 1 1 auto; min-height: 0; padding: 0.85rem 0.75rem 0.65rem; }
  .clover-composer-wrap {
    flex: 0 0 auto;
    width: 100%;
    padding: 0.45rem 0.65rem calc(0.6rem + env(safe-area-inset-bottom, 0px));
    border-top: 1px solid var(--line);
    background: var(--bg);
  }
  .clover-composer-card { padding: 0.42rem 0.52rem; border-radius: 14px; }
  .clover-composer-note { font-size: 0.71rem; margin-top: 0.3rem; }
  .k3-msg, .k3-bot-turn { max-width: 92%; }
}

@media (max-width: 480px) {
  .clover-send-btn span { display: none; }
  .clover-send-btn { padding: 0 0.65rem; }
  .clover-cpu-pill { font-size: 0.68rem; padding: 0.2rem 0.45rem; }
  .clover-cpu-disclaimer { padding: 0.38rem 0.7rem; font-size: 0.74rem; line-height: 1.34; }
  .clover-composer-note { font-size: 0.68rem; }
  .k3-msg, .k3-bot-turn { max-width: 95%; font-size: 0.93rem; }
}

/* ==========================================================================
   13. Vertical Botanical Storyline & Chapter Cards (Origin, Governance, Evidence)
   ========================================================================== */

.storyline {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: clamp(2rem, 4.5vw, 3rem);
  padding-left: clamp(1.5rem, 3.5vw, 2.75rem);
  margin-top: 0.75rem;
}

/* Living botanical stem connecting every chapter vertically */
.storyline::before {
  content: "";
  position: absolute;
  top: 1.6rem;
  bottom: 1.6rem;
  left: clamp(0.45rem, 1.2vw, 0.85rem);
  width: 2.5px;
  background: linear-gradient(
    180deg,
    var(--leaf-1) 0%,
    var(--accent) 45%,
    var(--leaf-3) 85%,
    transparent 100%
  );
  border-radius: var(--radius-pill);
  opacity: 0.65;
}

.storyline__item {
  position: relative;
  min-width: 0;
  max-width: 100%;
  scroll-margin-top: 5.2rem;
  transition: border-color 0.25s var(--ease-nature), box-shadow 0.25s var(--ease-nature), transform 0.25s var(--ease-nature);
}

.storyline__item:hover {
  border-color: var(--accent-line);
  box-shadow: var(--shadow-lg);
}

/* Botanical bud node along the vertical stem */
.storyline__item::before {
  content: "";
  position: absolute;
  top: 2.05rem;
  left: calc(-1 * clamp(1.5rem, 3.5vw, 2.75rem) + clamp(0.45rem, 1.2vw, 0.85rem) - 6px);
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--surface);
  border: 3px solid var(--accent);
  box-shadow: 0 0 0 4px var(--bg);
  z-index: 2;
  transition: transform 0.25s var(--ease-nature), background-color 0.25s var(--ease-nature);
}

.storyline__item:hover::before {
  background: var(--leaf-1);
  transform: scale(1.18);
}

/* Subtle horizontal petiole connecting stem node to chapter card */
.storyline__item::after {
  content: "";
  position: absolute;
  top: calc(2.05rem + 6px);
  left: calc(-1 * clamp(1.5rem, 3.5vw, 2.75rem) + clamp(0.45rem, 1.2vw, 0.85rem) + 7px);
  width: calc(clamp(1.5rem, 3.5vw, 2.75rem) - clamp(0.45rem, 1.2vw, 0.85rem) - 7px);
  height: 1.5px;
  background: var(--accent-line);
  opacity: 0.7;
}

@media (max-width: 640px) {
  .storyline {
    padding-left: 1.15rem;
    gap: 1.65rem;
  }
  .storyline::before {
    left: 0.25rem;
  }
  .storyline__item::before {
    left: calc(-1.15rem + 0.25rem - 5px);
    width: 12px;
    height: 12px;
    top: 1.65rem;
  }
  .storyline__item::after {
    display: none;
  }
}

.origin-deck {
  margin-top: 1.5rem;
}

.origin-bar {
  position: sticky;
  top: 4.1rem;
  z-index: 35;
  background: var(--glass);
  backdrop-filter: saturate(150%) blur(14px);
  -webkit-backdrop-filter: saturate(150%) blur(14px);
  border: 1px solid var(--line-2);
  border-radius: var(--radius);
  padding: 0.85rem 1.1rem;
  margin-bottom: 1.65rem;
  box-shadow: var(--shadow-sm);
}

.origin-bar__top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  flex-wrap: wrap;
  margin-bottom: 0.65rem;
}

.origin-bar__status {
  font-family: var(--serif);
  font-size: 0.94rem;
  font-weight: 600;
  color: var(--accent-hover);
  letter-spacing: 0.01em;
}

.origin-bar__controls {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  flex-wrap: wrap;
}

.origin-steps {
  display: flex;
  gap: 0.38rem;
  overflow-x: auto;
  padding-bottom: 0;
  scrollbar-width: none !important;
  -ms-overflow-style: none !important;
}

.origin-steps::-webkit-scrollbar {
  display: none !important;
  width: 0 !important;
  height: 0 !important;
}

.origin-step {
  flex: 0 0 auto;
  font: inherit;
  font-size: 0.8rem;
  font-weight: 600;
  padding: 0.4rem 0.78rem;
  border-radius: var(--radius-pill);
  border: 1px solid var(--line-2);
  background: var(--surface);
  color: var(--ink-2);
  cursor: pointer;
  white-space: nowrap;
  transition: background-color 0.18s var(--ease-nature), color 0.18s var(--ease-nature), border-color 0.18s var(--ease-nature), box-shadow 0.18s var(--ease-nature);
}

.origin-step:hover {
  border-color: var(--accent-line);
  color: var(--accent-hover);
  background: var(--accent-tint);
}

.origin-step[aria-selected="true"] {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
  box-shadow: 0 4px 12px -2px rgba(27, 94, 70, 0.32);
}

.origin-progress {
  height: 4px;
  background: var(--soft-2);
  border-radius: var(--radius-pill);
  overflow: hidden;
  margin-top: 0.6rem;
}

.origin-progress__fill {
  height: 100%;
  background: linear-gradient(90deg, var(--leaf-1), var(--accent));
  width: 8.33%;
  transition: width 0.3s var(--ease-nature);
}

.origin-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: clamp(1.5rem, 4vw, 2.5rem);
  box-shadow: var(--shadow-md);
}

.js .origin-deck:not(.is-all-open) .origin-card:not(.is-active) {
  display: none;
}

.no-js .origin-card,
.origin-deck.is-all-open .origin-card {
  display: block;
  margin-bottom: 2rem;
}

.origin-card__badge {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: var(--accent-hover);
  background: var(--accent-soft);
  border: 1px solid var(--accent-line);
  padding: 0.25rem 0.75rem;
  border-radius: var(--radius-pill);
  margin-bottom: 0.85rem;
}

.origin-story-box {
  background: linear-gradient(135deg, var(--accent-tint) 0%, var(--surface-tint) 100%);
  border-left: 4px solid var(--accent);
  border-top: 1px solid rgba(27, 94, 70, 0.12);
  border-right: 1px solid rgba(27, 94, 70, 0.12);
  border-bottom: 1px solid rgba(27, 94, 70, 0.12);
  border-radius: 0 var(--radius) var(--radius) 0;
  padding: 1.25rem 1.45rem;
  margin: 1.3rem 0 1.65rem;
}

.origin-story-box__label {
  font-size: 0.76rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--accent-hover);
  margin-bottom: 0.4rem;
  display: block;
}

.origin-story-box p {
  font-size: 1.03rem;
  color: var(--ink);
  margin-bottom: 0.65rem;
  max-width: none;
}

.origin-story-box p:last-child { margin-bottom: 0; }

.origin-visual {
  margin: 1.65rem 0;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.1rem;
  overflow-x: auto;
  box-shadow: var(--shadow-xs);
}

.origin-visual svg {
  display: block;
  width: 100%;
  max-width: 900px;
  height: auto;
  margin: 0 auto;
  border-radius: var(--radius-xs);
}

.origin-visual figcaption {
  margin-top: 0.7rem;
  font-size: 0.88rem;
  color: var(--muted);
  text-align: center;
}

.origin-bridge {
  margin-top: 1.65rem;
  padding: 1.05rem 1.3rem;
  background: var(--accent-soft);
  border: 1px solid var(--accent-line);
  border-radius: var(--radius-sm);
  font-size: 0.96rem;
  color: var(--ink);
}

.origin-bridge strong { color: var(--accent-hover); }

.origin-pager {
  margin-top: 1.65rem;
  padding-top: 1.3rem;
  border-top: 1px solid var(--line);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}

.origin-pager__btn {
  display: inline-flex;
  flex-direction: column;
  align-items: flex-start;
  padding: 0.75rem 1.2rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--line-2);
  background: var(--surface);
  color: var(--ink);
  font: inherit;
  cursor: pointer;
  text-align: left;
  min-width: 210px;
  box-shadow: var(--shadow-xs);
  transition: border-color 0.18s var(--ease-nature), background-color 0.18s var(--ease-nature), color 0.18s var(--ease-nature), transform 0.18s var(--ease-nature);
}

.origin-pager__btn:hover:not(:disabled) {
  border-color: var(--accent);
  background: var(--accent-tint);
  transform: translateY(-1px);
}

.origin-pager__btn:disabled {
  opacity: 0.4;
  cursor: default;
}

.origin-pager__btn--next {
  align-items: flex-end;
  text-align: right;
  margin-left: auto;
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

.origin-pager__btn--next:hover:not(:disabled) {
  background: var(--accent-hover);
  border-color: var(--accent-hover);
  color: #fff;
}

.origin-pager__dir {
  font-size: 0.74rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  opacity: 0.82;
  margin-bottom: 0.15rem;
}

.origin-pager__title {
  font-family: var(--serif);
  font-size: 0.98rem;
  font-weight: 600;
}

@media (max-width: 640px) {
  .origin-pager__btn { width: 100%; min-width: 0; }
}