/* ============================================================================
   Impeccable — Neo Kinpaku Design System
   Restrained dark surface. Kinpaku gold and verdigris patina carry the brand.
   No nested cards, no decorative chrome, no washed-out textures.

   Brand-defining tokens (kinpaku, pale, rich, patina, champagne, text, font,
   ease, vermilion) live in kinpaku-tokens.css and are inherited from :root.
   Only page-specific neutrals (ink/surface shades, rule alphas, muted) stay
   scoped here.
   ============================================================================ */

@import "./kinpaku-tokens.css";
/* Divider geometry, tone modifiers, and texture-fill modifiers — shared with
   the homepage. Must stay at the top of the file because CSS @import is only
   valid before any other rules. */
@import "./divider-patterns.css";

.kinpaku-system-page {
  /* Legacy alias layer. All real values live in kinpaku-tokens.css at :root;
     this page's selectors still reference the old short names (--ks-ink,
     --ks-surface, --ks-muted, --ks-mute-deep), so we forward them to the
     forward names. Phase 4 of the design-system rework will rename the
     selectors and delete this block. */
  --ks-ink:        var(--ks-lacquer);
  --ks-ink-deep:   var(--ks-lacquer-deep);
  --ks-surface:    var(--ks-lacquer-raised);
  --ks-muted:      var(--ks-text-muted);
  --ks-mute-deep: var(--ks-text-mute-deep);

  color: var(--ks-text);
  background: var(--ks-lacquer);
  font-family: var(--ks-font);
  font-weight: 300;
  margin: 0;
}

.kinpaku-system-page *,
.kinpaku-system-page *::before,
.kinpaku-system-page *::after {
  box-sizing: border-box;
}

.kinpaku-system-page img,
.kinpaku-system-page svg {
  display: block;
  max-width: 100%;
}

.kinpaku-system-page a:not(.ks-brand) {
  color: inherit;
  text-decoration: none;
}

/* Brand lockup — kinpaku gold on dark surfaces; html.light swaps to ink
   (see light-mode.css) to match impeccable-logo-on-light.svg. */
.kinpaku-system-page a.ks-brand {
  color: var(--ks-kinpaku);
}

.kinpaku-system-page a.ks-brand .ks-mark,
.kinpaku-system-page a.ks-brand .ks-wordmark {
  color: inherit;
}

.kinpaku-system-page button,
.kinpaku-system-page input,
.kinpaku-system-page select {
  font: inherit;
}

.kinpaku-system {
  position: relative;
  isolation: isolate;
}

/* Skip link */
.kinpaku-system-page .skip-link {
  position: fixed;
  top: -96px;
  left: 50%;
  z-index: 1000;
  transform: translateX(-50%);
  padding: 10px 16px;
  border-radius: 2px;
  color: var(--ks-ink-deep);
  background: var(--ks-kinpaku);
  font-weight: 500;
  text-decoration: none;
  transition: top 180ms var(--ks-ease);
}
.kinpaku-system-page .skip-link:focus { top: 16px; }
.kinpaku-system-page .skip-link:focus:not(:focus-visible) { top: -96px; }

/* ============================================================================
   Hero
   ============================================================================ */

.ks-hero {
  position: relative;
  min-height: 100svh;
  display: grid;
  grid-template-rows: auto 1fr auto;
  padding: 36px 56px 0;
  overflow: hidden;
}

.ks-hero-art {
  position: absolute;
  inset: 0;
  z-index: 0;
  background:
    linear-gradient(90deg, var(--ks-ink) 0%, oklch(4% 0.004 95 / 0.65) 26%, transparent 48%, transparent 88%, var(--ks-ink) 100%),
    linear-gradient(180deg, oklch(4% 0.004 95 / 0.35) 0%, transparent 35%, var(--ks-ink) 100%),
    url("/assets/neo-kinpaku/candidates/finalists/m-01-v2-01.png") center / cover no-repeat;
  filter: saturate(1.22) contrast(1.1);
}

/* Header */
.ks-topbar {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
}

/* Brand lockup (.ks-brand, .ks-mark, .ks-wordmark) is in kinpaku-kit.css. */

.ks-nav {
  display: flex;
  align-items: center;
  gap: 38px;
}

.ks-nav a {
  color: var(--ks-champagne);
  font-size: 0.92rem;
  text-decoration: none;
  letter-spacing: 0.01em;
  transition: color 180ms var(--ks-ease);
}

.ks-nav a:hover { color: var(--ks-kinpaku); }

.ks-nav a[aria-current="page"] {
  color: var(--ks-kinpaku);
  position: relative;
}
.ks-nav a[aria-current="page"]::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -8px;
  height: 1px;
  background: var(--ks-kinpaku);
}

/* Hero body */
.ks-hero-body {
  position: relative;
  z-index: 1;
  display: grid;
  align-content: center;
  padding: 80px 0 96px;
  max-width: 940px;
}

.ks-hero-eyebrow {
  color: var(--ks-kinpaku);
  font-family: var(--ks-mono);
  font-size: 0.7rem;
  letter-spacing: 0.32em;
  text-transform: uppercase;
  margin: 0 0 28px;
}

.ks-hero-wordmark {
  display: block;
  color: var(--ks-kinpaku);
  font-family: var(--ks-font-display);
  font-weight: 100;
  font-size: clamp(3.2rem, 7.2vw, 5.6rem);
  line-height: 1;
  letter-spacing: 0.22em;
  margin: 0;
  padding-right: 0.22em;
}

.ks-hero-line {
  margin: 28px 0 0;
  max-width: 540px;
  color: var(--ks-champagne);
  font-size: clamp(1.05rem, 1.4vw, 1.25rem);
  font-weight: 300;
  line-height: 1.55;
}

.ks-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-top: 36px;
}

.ks-hero-note {
  margin-top: 56px;
  display: grid;
  grid-template-columns: 56px minmax(0, 1fr);
  gap: 18px;
  align-items: start;
  max-width: 480px;
  color: var(--ks-muted);
  font-size: 0.9rem;
  line-height: 1.6;
}

.ks-hero-note-pin {
  height: 40px;
  border-top: 1px solid var(--ks-kinpaku);
  border-left: 1px solid var(--ks-kinpaku);
  position: relative;
}
.ks-hero-note-pin::before {
  content: "";
  position: absolute;
  top: -3px;
  left: -3px;
  width: 5px;
  height: 5px;
  border-radius: 999px;
  background: var(--ks-kinpaku);
}

/* Category rail */
.ks-category-rail {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  border-top: 1px solid var(--ks-rule);
  margin: 0 -56px;
  background: linear-gradient(180deg, transparent, oklch(4% 0.004 95 / 0.8));
}

.ks-category-rail a {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 14px;
  padding: 26px 16px;
  color: var(--ks-champagne);
  text-decoration: none;
  font-size: 0.96rem;
  font-weight: 300;
  letter-spacing: 0.02em;
  border-right: 1px solid var(--ks-rule);
  transition: color 180ms var(--ks-ease);
}

.ks-category-rail a:last-child { border-right: 0; }
.ks-category-rail a:hover { color: var(--ks-kinpaku); }

.ks-category-rail svg {
  width: 18px;
  height: 18px;
  flex: none;
  color: var(--ks-kinpaku);
}

/* ============================================================================
   Sections
   ============================================================================ */

/* Section scaffolding (.ks-section, .ks-section-head, .ks-section-eyebrow,
   .ks-subsection, .ks-subsection-label, .ks-section-sub) is in
   kinpaku-kit.css. */

/* Hero candidate gallery */
.ks-candidate-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.ks-candidate {
  position: relative;
  margin: 0;
  border: 1px solid var(--ks-rule);
  border-radius: 2px;
  overflow: hidden;
  background: var(--ks-ink-deep);
}

.ks-candidate img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
}

.ks-icon-candidate img {
  aspect-ratio: 1;
}

.ks-icon-family-label {
  margin: 32px 0 14px;
  font-family: var(--ks-mono);
  font-size: 0.72rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--ks-kinpaku);
  font-weight: 400;
}

.ks-icon-family-label:first-of-type {
  margin-top: 4px;
}

/* Hand-drawn icon-mark concept tiles. Each tile shows the candidate inside the
   actual 38px icon box so it's evaluated at the size it'd ship at. */
.ks-icon-concepts {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 18px;
}

.ks-icon-concept {
  margin: 0;
  display: grid;
  gap: 18px;
  justify-items: center;
  padding: 36px 18px 18px;
  border: 1px solid var(--ks-rule);
  border-radius: 2px;
  background: var(--ks-ink-deep);
}

.ks-icon-concept-box {
  width: 38px;
  height: 38px;
  display: grid;
  place-items: center;
  border: 1px solid var(--ks-kinpaku);
  color: var(--ks-kinpaku);
  border-radius: 2px;
}

.ks-icon-concept-box svg {
  width: 14px;
  height: 22px;
  display: block;
}

.ks-icon-concept figcaption {
  font-family: var(--ks-mono);
  font-size: 0.66rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ks-muted);
  text-align: center;
}

/* Canonical mark, shown at a range of sizes. No container box — the tile is
   the mark. */
.ks-mark-scale {
  display: flex;
  align-items: flex-end;
  gap: 40px;
}
.ks-mark-scale-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
  margin: 0;
}
.ks-mark-glyph {
  display: inline-grid;
  place-items: center;
  color: var(--ks-kinpaku);
}
.ks-mark-glyph svg { width: 100%; height: 100%; display: block; }
.ks-mark-scale-item figcaption {
  font-family: var(--ks-mono);
  font-size: 0.62rem;
  letter-spacing: 0.14em;
  color: var(--ks-muted);
}

.ks-candidate figcaption {
  position: absolute;
  left: 10px;
  top: 10px;
  padding: 2px 8px;
  background: oklch(4% 0.004 95 / 0.74);
  color: var(--ks-kinpaku);
  font-family: var(--ks-mono);
  font-size: 0.66rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  border: 1px solid var(--ks-kinpaku);
  border-radius: 2px;
  pointer-events: none;
}

.ks-candidate.is-kept figcaption {
  color: var(--ks-patina);
  border-color: var(--ks-patina);
}

/* Keyed (transparent) candidates: split background to reveal alpha */
.ks-candidate-keyed-stack {
  position: relative;
  aspect-ratio: 3 / 2;
}

.ks-candidate-keyed-stack img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 2;
}

.ks-candidate-keyed-checker {
  position: absolute;
  inset: 0;
  z-index: 1;
  background:
    linear-gradient(90deg, var(--ks-ink-deep) 50%, transparent 50%),
    linear-gradient(90deg, transparent 50%, var(--ks-graphite) 50%);
  background-size: 100% 100%, 100% 100%;
}

@media (max-width: 1080px) {
  .ks-candidate-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 640px) {
  .ks-candidate-grid { grid-template-columns: 1fr; }
}

/* ============================================================================
   Buttons
   ============================================================================ */

/* Buttons (.ks-button, .ks-button-primary, .ks-button-secondary,
   .ks-button-ghost, .ks-button-disabled, .ks-button-arrow, .ks-button-row,
   focus-visible) are in kinpaku-kit.css. */

/* ============================================================================
   Foundations: Color swatches (flat, no card chrome)
   ============================================================================ */

.ks-swatch-grid {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 28px;
}

.ks-swatch {
  display: grid;
  gap: 12px;
}

.ks-swatch-chip {
  width: 100%;
  aspect-ratio: 5 / 4;
  border: 1px solid var(--ks-rule);
  border-radius: 2px;
}

.ks-swatch-chip.is-kinpaku {
  border-color: transparent;
  background: url("/assets/neo-kinpaku/kinpaku-gold-leaf.png") 50% 50% / cover no-repeat;
  filter: saturate(1.18) contrast(1.08);
}

.ks-swatch-chip.is-patina {
  border-color: transparent;
  background: url("/assets/neo-kinpaku/verdigris-patina.png") 50% 50% / cover no-repeat;
  filter: saturate(1.2) contrast(1.06);
}

.ks-swatch-chip.is-ink { background: var(--ks-ink); border-color: oklch(20% 0.006 95); }
.ks-swatch-chip.is-surface { background: var(--ks-surface); }
.ks-swatch-chip.is-champagne { background: var(--ks-champagne); border-color: transparent; }
.ks-swatch-chip.is-vermilion { background: var(--ks-vermilion); border-color: transparent; }

.ks-swatch-name {
  display: block;
  color: var(--ks-champagne);
  font-size: 0.92rem;
  font-weight: 400;
}

.ks-swatch-role {
  display: block;
  color: var(--ks-muted);
  font-size: 0.78rem;
  margin-top: 2px;
}

.ks-swatch-value {
  display: block;
  color: var(--ks-mute-deep);
  font-family: var(--ks-mono);
  font-size: 0.7rem;
  margin-top: 6px;
}

/* ============================================================================
   Foundations: Type specs (no card)
   ============================================================================ */

.ks-type-stack {
  display: grid;
  gap: 28px;
}

.ks-type-row {
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: 32px;
  align-items: baseline;
  padding-bottom: 28px;
  border-bottom: 1px solid var(--ks-rule);
}

.ks-type-row:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.ks-type-label {
  color: var(--ks-kinpaku);
  font-family: var(--ks-mono);
  font-size: 0.66rem;
  letter-spacing: 0.24em;
  text-transform: uppercase;
}

.ks-type-spec-line {
  color: var(--ks-muted);
  font-family: var(--ks-mono);
  font-size: 0.7rem;
  letter-spacing: 0.06em;
  margin-top: 8px;
}

/* Type samples — render the production scale, full strength. The samples
   read directly from --ks-type-* tokens so the design-system page literally
   shows what the homepage ships. data-scale on each sample selects which
   token family applies. */

.ks-type-sample {
  margin: 0;
  font-family: var(--ks-font);
  color: var(--ks-text);
}

.ks-type-sample[data-scale="wordmark"] {
  color: var(--ks-kinpaku);
  font-family: var(--ks-font-display);
  font-weight: var(--ks-type-display-weight);
  font-size: var(--ks-type-wordmark-size);
  letter-spacing: var(--ks-type-wordmark-track);
  text-transform: uppercase;
  line-height: 1;
}

.ks-type-sample[data-scale="display"] {
  color: var(--ks-champagne);
  font-family: var(--ks-font-display);
  font-weight: var(--ks-type-display-weight);
  font-size: var(--ks-type-display-size);
  line-height: var(--ks-type-display-line);
  letter-spacing: var(--ks-type-display-track);
  text-wrap: balance;
}

.ks-type-sample[data-scale="headline"] {
  color: var(--ks-champagne);
  font-family: var(--ks-font-display);
  font-weight: var(--ks-type-headline-weight);
  font-size: var(--ks-type-headline-size);
  line-height: var(--ks-type-headline-line);
  text-wrap: balance;
}

.ks-type-sample[data-scale="body"] {
  color: var(--ks-text);
  font-size: var(--ks-type-body-size);
  line-height: var(--ks-type-body-line);
  max-width: 65ch;
}

.ks-type-sample[data-scale="mono"] {
  color: var(--ks-kinpaku);
  font-family: var(--ks-mono);
  font-size: var(--ks-type-mono-size);
  letter-spacing: var(--ks-type-mono-track);
  text-transform: uppercase;
}

/* ============================================================================
   Foundations: Paired material + solid swatches
   The two brand anchors (kinpaku, verdigris) each get a side-by-side display
   of their material texture and their solid color token. Reinforces that
   "material" and "color" are two sides of the same anchor, not separate
   categories.
   ============================================================================ */

.ks-pair-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 28px;
}

.ks-pair {
  display: grid;
  grid-template-columns: 1fr 1fr;
  column-gap: 4px;
  row-gap: 12px;
}

.ks-pair-chip {
  width: 100%;
  aspect-ratio: 5 / 4;
  border-radius: 2px;
  grid-row: 1;
  border: 1px solid transparent;
}

.ks-pair-chip.is-kinpaku-leaf {
  background: url("/assets/neo-kinpaku/kinpaku-gold-leaf.png") 50% 50% / cover no-repeat;
  filter: saturate(1.18) contrast(1.08);
}

.ks-pair-chip.is-kinpaku-solid {
  background: var(--ks-kinpaku);
}

.ks-pair-chip.is-patina-leaf {
  background: url("/assets/neo-kinpaku/verdigris-patina.png") 50% 50% / cover no-repeat;
  filter: saturate(1.2) contrast(1.06);
}

.ks-pair-chip.is-patina-solid {
  background: var(--ks-patina);
}

.ks-pair-name {
  grid-column: 1 / -1;
  color: var(--ks-champagne);
  font-size: 0.92rem;
  font-weight: 400;
}

.ks-pair-role {
  grid-column: 1 / -1;
  color: var(--ks-muted);
  font-size: 0.78rem;
  line-height: 1.5;
  margin-top: -6px;
}

.ks-pair-value {
  grid-column: 1 / -1;
  color: var(--ks-mute-deep);
  font-family: var(--ks-mono);
  font-size: 0.7rem;
  margin-top: -2px;
}

@media (max-width: 700px) {
  .ks-pair-grid { grid-template-columns: 1fr; }
}

/* ============================================================================
   Inline mono code chip (motion section, in-prose references to tokens)
   ============================================================================ */

.ks-mono-inline {
  font-family: var(--ks-mono);
  font-size: 0.8em;
  color: var(--ks-kinpaku);
  padding: 0.05em 0.4em;
  border: 1px solid oklch(78% 0.12 82 / 0.18);
  border-radius: 2px;
}

/* ============================================================================
   Container patterns: Canonical bento showcase
   Wraps a live .ks-bento at reduced height with a "Used in production"
   annotation. The frame keeps the bento from breaking out of the section
   because the doc's canonical sample is illustrative, not full-bleed.
   ============================================================================ */

.ks-canonical {
  display: grid;
  gap: 18px;
}

.ks-canonical-frame {
  border: 1px solid var(--ks-rule);
  border-radius: 2px;
  padding: 16px;
  background: oklch(0.10 0.005 95);
  overflow: hidden;
}

/* Override the .ks-bento's top/bottom border (which is brand-bearing 8px
   plinth) for the in-doc sample so the frame's border carries the contain. */
.ks-canonical-bento {
  border-top-width: 0;
  border-bottom-width: 0;
}

.ks-canonical-bento .ks-bento-tile {
  padding: 24px;
  gap: 8px;
}

.ks-canonical-foot {
  display: grid;
  gap: 6px;
  color: var(--ks-muted);
  font-size: 0.88rem;
  line-height: 1.55;
  max-width: 78ch;
}

.ks-canonical-foot strong {
  color: var(--ks-champagne);
  font-weight: 500;
}

.ks-canonical-meta {
  font-family: var(--ks-mono);
  font-size: 0.72rem;
  letter-spacing: 0.04em;
  color: var(--ks-mute-deep);
  margin: 0;
}

.ks-canonical-used {
  color: var(--ks-kinpaku);
  text-transform: uppercase;
  letter-spacing: 0.18em;
}

.ks-canonical-meta a {
  color: var(--ks-champagne);
  border-bottom: 1px solid var(--ks-rule);
}

.ks-canonical-meta a:hover {
  color: var(--ks-kinpaku);
  border-bottom-color: var(--ks-kinpaku);
}

/* ============================================================================
   Foundations: Logo download tiles
   ============================================================================ */

.ks-logo-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.ks-logo-tile {
  margin: 0;
  display: grid;
  gap: 0;
  border: 1px solid var(--ks-rule);
  border-radius: 2px;
  overflow: hidden;
}

.ks-logo-tile img {
  display: block;
  width: auto;
  max-width: 78%;
  height: auto;
  margin: 56px auto;
}

.ks-logo-tile.is-dark {
  background: oklch(7% 0.006 95);
}

.ks-logo-tile.is-light {
  background: oklch(94% 0.012 82);
}

.ks-logo-tile figcaption {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  padding: 14px 18px;
  border-top: 1px solid var(--ks-rule);
  background: oklch(9% 0.006 95);
  color: var(--ks-muted);
}

.ks-logo-tile-label {
  font-family: var(--ks-mono);
  font-size: 0.66rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ks-kinpaku);
}

.ks-logo-tile-links {
  display: flex;
  gap: 14px;
  font-family: var(--ks-mono);
  font-size: 0.72rem;
}

.ks-logo-tile-links a {
  color: var(--ks-text);
  text-decoration: none;
  border-bottom: 1px solid var(--ks-rule);
  padding-bottom: 1px;
  transition: color 160ms ease, border-color 160ms ease;
}

.ks-logo-tile-links a:hover {
  color: var(--ks-kinpaku);
  border-bottom-color: var(--ks-kinpaku);
}

.ks-logo-note {
  margin: 18px 0 0;
  color: var(--ks-muted);
  font-size: 0.88rem;
  line-height: 1.55;
  max-width: 62ch;
}

@media (max-width: 720px) {
  .ks-logo-grid { grid-template-columns: 1fr; }
}

/* ============================================================================
   Container prototypes
   Six framing approaches that group content without nesting card-in-card.
   The .ksp-tile is the prototype's outer frame (only there so the user can
   compare techniques side-by-side). The .ksp-stage is the dark surface each
   prototype "lives on" — that's the real container under test.
   ============================================================================ */

.ks-container-prototypes {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 28px;
}

.ksp-tile {
  margin: 0;
  display: grid;
  gap: 0;
  border: 1px solid var(--ks-rule);
  border-radius: 2px;
  background: oklch(9% 0.006 95);
  overflow: hidden;
}

.ksp-tile-head {
  display: grid;
  grid-template-columns: auto auto 1fr;
  align-items: baseline;
  gap: 14px;
  padding: 14px 22px;
  border-bottom: 1px solid var(--ks-rule);
  background: oklch(11% 0.006 95);
  font-family: var(--ks-mono);
}

.ksp-tile-id {
  color: var(--ks-kinpaku);
  font-size: 0.7rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.ksp-tile-name {
  color: var(--ks-champagne);
  font-family: var(--ks-font);
  font-size: 0.95rem;
}

.ksp-tile-desc {
  color: var(--ks-muted);
  font-size: 0.78rem;
  text-align: right;
}

/* The "stage" is the lacquer surface each prototype sits on. Generous padding
   so the framing technique has air to breathe; the real test is whether the
   content feels grouped without sitting inside a competing card. */
.ksp-stage {
  position: relative;
  padding: 56px 48px;
  min-height: 240px;
  display: flex;
  align-items: center;
}

.ksp-stage--dark {
  background: var(--ks-ink);
}

/* Sample content typography — shared across all six prototypes so framing
   is the only visual variable. */
.ksp-eyebrow {
  margin: 0 0 12px;
  color: var(--ks-kinpaku);
  font-family: var(--ks-mono);
  font-size: 0.7rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.ksp-title {
  margin: 0 0 12px;
  color: var(--ks-champagne);
  font-family: var(--ks-font);
  font-weight: 300;
  font-size: 1.6rem;
  line-height: 1.15;
  letter-spacing: -0.005em;
}

.ksp-body {
  margin: 0;
  color: var(--ks-text);
  font-size: 0.95rem;
  line-height: 1.55;
  max-width: 46ch;
}

/* B · Numbered marginalia — large outlined number in the gutter. */
.ksp-style-b {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 28px;
  align-items: start;
}

.ksp-marginal-num {
  color: var(--ks-kinpaku);
  font-family: var(--ks-font);
  font-weight: 300;
  font-size: 4.4rem;
  line-height: 0.9;
  letter-spacing: -0.02em;
}

/* F · Kinpaku slab anchor — tiny full-vibrancy gold-leaf chip behind the
   eyebrow. The texture is brand-bearing, the rest is clean lacquer. */
.ksp-style-f .ksp-eyebrow--chip {
  display: inline-block;
  padding: 6px 14px;
  margin-bottom: 16px;
  color: var(--ks-ink-deep);
  background: url("/assets/neo-kinpaku/kinpaku-gold-leaf.png") 50% 50% / cover no-repeat;
  filter: saturate(1.15) contrast(1.08);
  font-weight: 600;
  letter-spacing: 0.16em;
}

/* G · Tinted plinth — flat neutral lift. No border, no shadow, no inner
   shape. Pure background-color step from the lacquer (7%) up to 17% neutral
   gray. Zero chroma (the "0 0" in oklch) keeps it neutral so the gold accents
   in the content carry the warmth on their own. The dark-mode equivalent of
   the light-mode "raise content by 4% lightness" trick. */
.ksp-style-g {
  background: oklch(0.17 0 0);
  padding: 28px 32px;
  border-radius: 2px;
}

@media (max-width: 900px) {
  .ks-container-prototypes { grid-template-columns: 1fr; }
}

/* ============================================================================
   Divider patterns (CSS-only, no image assets)
   Each pattern uses currentColor or var(--ks-kinpaku) so the gold tone follows
   the brand token. Use these on full-width section transitions or as accent
   rules above eyebrow labels.
   ============================================================================ */

.ks-divider-stack {
  display: grid;
  gap: 36px;
}

.ksd-row {
  margin: 0;
}

.ksd-row figcaption {
  font-family: var(--ks-mono);
  font-size: 0.66rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ks-muted);
  margin-bottom: 14px;
}

/* Tone comparison row inside a divider figure: small label + the actual
   divider, repeated for each of kinpaku / patina / plinth / textures. */
.ksd-tones {
  display: grid;
  gap: 14px;
}
.ksd-tone {
  display: grid;
  grid-template-columns: 72px 1fr;
  gap: 18px;
  align-items: center;
}
.ksd-tone-label {
  font-family: var(--ks-mono);
  font-size: 0.6rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ks-muted);
}

/* ============================================================================
   Foundations: Accent textures (full vibrancy, three only)
   ============================================================================ */

.ks-accent-stack {
  display: grid;
  gap: 28px;
}

.ks-accent-row {
  display: grid;
  gap: 14px;
}

.ks-accent-row-label {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  color: var(--ks-kinpaku);
  font-family: var(--ks-mono);
  font-size: 0.66rem;
  letter-spacing: 0.24em;
  text-transform: uppercase;
}

.ks-accent-row-label small {
  color: var(--ks-muted);
  font-size: 0.66rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.ks-accent-band {
  position: relative;
  height: 96px;
  overflow: hidden;
  border-radius: 2px;
}

.ks-accent-band.is-leaf {
  background: url("/assets/neo-kinpaku/kinpaku-gold-leaf.png") 50% 50% / cover no-repeat;
  filter: saturate(1.15) contrast(1.08);
}

.ks-accent-band.is-patina {
  background: url("/assets/neo-kinpaku/verdigris-patina.png") 50% 50% / cover no-repeat;
  filter: saturate(1.18) contrast(1.06);
}

.ks-accent-band.is-dust {
  background: url("/assets/neo-kinpaku/gold-dust-rule.png") center / 100% 100% no-repeat;
  filter: saturate(1.22) contrast(1.15) brightness(1.12);
}

/* ============================================================================
   Navigation sample
   ============================================================================ */

.ks-nav-sample {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  min-height: 68px;
  padding: 0 24px;
  border-top: 1px solid var(--ks-rule);
  border-bottom: 1px solid var(--ks-rule);
}

.ks-nav-sample .ks-brand { gap: 14px; }
.ks-nav-sample .ks-mark { width: 32px; height: 32px; }
.ks-nav-sample .ks-mark svg { width: 27px; height: 27px; }
.ks-nav-sample .ks-wordmark { font-size: 0.78rem; }

.ks-nav-sample-mobile {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  min-height: 60px;
  padding: 0 24px;
  border-top: 1px solid var(--ks-rule);
  border-bottom: 1px solid var(--ks-rule);
  margin-top: 28px;
  max-width: 420px;
}

.ks-menu-button {
  width: 36px;
  height: 36px;
  display: grid;
  place-content: center;
  gap: 6px;
  background: transparent;
  border: 0;
  color: var(--ks-kinpaku);
  cursor: pointer;
}

.ks-menu-button span {
  width: 22px;
  height: 1px;
  background: currentColor;
}

/* ============================================================================
   Actions: button row, states, form, tabs
   ============================================================================ */

/* .ks-button-row is in kinpaku-kit.css. */

.ks-state-grid {
  display: grid;
  grid-template-columns: minmax(120px, auto) 1fr;
  gap: 16px 24px;
  align-items: center;
  max-width: 420px;
}

.ks-state-label {
  color: var(--ks-muted);
  font-family: var(--ks-mono);
  font-size: 0.7rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

/* Force pseudo-states for state showcase */
.ks-state-grid .ks-button-primary[data-state="hover"] {
  background: var(--ks-kinpaku-pale);
  border-color: var(--ks-kinpaku-pale);
}
.ks-state-grid .ks-button-primary[data-state="pressed"] {
  background: oklch(72% 0.11 82);
  border-color: oklch(72% 0.11 82);
}

/* Form controls (.ks-form-sample, .ks-toggle, .ks-checkbox, .ks-select) and
   tabs (.ks-tabs, .ks-tab-list, .ks-tab-panel) are in kinpaku-kit.css. */

/* ============================================================================
   Components: Audit Result Row, badges, tags, integration badges, pagination
   ============================================================================ */

.ks-audit-result {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 48px;
  padding: 32px 36px 36px;
  border-top: 1px solid var(--ks-rule);
  margin-bottom: 64px;
}

.ks-audit-stat {
  display: grid;
  gap: 6px;
}

.ks-audit-stat-label {
  color: var(--ks-muted);
  font-family: var(--ks-mono);
  font-size: 0.66rem;
  letter-spacing: 0.24em;
  text-transform: uppercase;
}

.ks-audit-stat-value {
  font-weight: 300;
  font-size: clamp(2.4rem, 4vw, 3.2rem);
  line-height: 1;
  letter-spacing: -0.01em;
}
.ks-audit-stat-value.is-warning { color: var(--ks-vermilion); }
.ks-audit-stat-value.is-improved { color: var(--ks-patina); }
.ks-audit-stat-value.is-ready { color: var(--ks-kinpaku); }

.ks-audit-stat-meta {
  color: var(--ks-muted);
  font-size: 0.84rem;
}

/* Badges (.ks-badge, .ks-badge-row) and tags (.ks-tag, .ks-tag-row) are in
   kinpaku-kit.css. */

/* Integration badges */
.ks-integration-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 18px;
}

.ks-integration-badge {
  width: 44px;
  height: 44px;
  display: grid;
  place-items: center;
  border: 1px solid var(--ks-rule);
  border-radius: 2px;
  color: var(--ks-champagne);
  transition: border-color 180ms var(--ks-ease), color 180ms var(--ks-ease);
}
.ks-integration-badge:hover {
  border-color: var(--ks-kinpaku);
  color: var(--ks-kinpaku);
}
.ks-integration-badge svg { width: 20px; height: 20px; }

/* Pagination, toast/alert, icon button + tooltip, modal, empty state,
   changelog row, skeleton (+ ks-shimmer keyframes) are all in kinpaku-kit.css.
   Only the tooltip *trigger* wrapper (.ks-tooltip-sample) stays here as
   page-specific doc presentation. */

.ks-tooltip-sample {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 0;
  padding: 22px 0;
}

.ks-tooltip-sample:hover .ks-tooltip {
  opacity: 1;
}

/* ============================================================================
   Proof: Comparison + audit detail rows
   ============================================================================ */

.ks-proof-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(280px, 0.6fr);
  gap: 48px;
}

.ks-comparison {
  position: relative;
}

.ks-comparison-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: 18px;
}

.ks-comparison-head h3 {
  margin: 0;
  color: var(--ks-champagne);
  font-size: 0.96rem;
  font-weight: 400;
}

.ks-comparison-head span {
  color: var(--ks-muted);
  font-family: var(--ks-mono);
  font-size: 0.7rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.ks-comparison-stage {
  position: relative;
  aspect-ratio: 16 / 10;
  overflow: hidden;
  border: 1px solid var(--ks-rule);
  border-radius: 2px;
  background:
    linear-gradient(180deg, oklch(8% 0.006 95), oklch(5% 0.004 95));
}

.ks-comparison-side {
  position: absolute;
  inset: 0;
  padding: 28px;
  display: grid;
  align-items: center;
  justify-items: center;
}

.ks-comparison-before {
  background:
    radial-gradient(circle at 50% 50%, oklch(60% 0.18 305 / 0.12), transparent 18rem),
    linear-gradient(180deg, oklch(8% 0.006 95), oklch(5% 0.004 95));
}

.ks-comparison-after {
  background:
    radial-gradient(circle at 50% 50%, oklch(69% 0.105 190 / 0.1), transparent 18rem),
    linear-gradient(180deg, oklch(8% 0.006 95), oklch(5% 0.004 95));
}

.ks-mini-ui {
  width: min(360px, 88%);
  padding: 18px;
  border: 1px solid var(--ks-rule);
  border-radius: 4px;
  background: var(--ks-surface);
}

.ks-mini-ui-before .ks-mini-orb {
  width: 40px;
  height: 40px;
  border-radius: 999px;
  background: linear-gradient(135deg, oklch(65% 0.22 285), oklch(54% 0.25 310));
  margin-bottom: 14px;
}
.ks-mini-ui-before strong {
  color: var(--ks-champagne);
  font-size: 0.98rem;
  font-weight: 500;
  display: block;
}
.ks-mini-ui-before p {
  margin: 6px 0 14px;
  color: var(--ks-muted);
  font-size: 0.82rem;
}
.ks-mini-ui-before .ks-mini-cta {
  width: 100%;
  min-height: 38px;
  border: 0;
  border-radius: 4px;
  background: linear-gradient(90deg, oklch(62% 0.24 285), oklch(48% 0.22 315));
  color: oklch(98% 0.01 285);
  font-size: 0.86rem;
  cursor: pointer;
}

.ks-mini-ui-after {
  border-color: var(--ks-kinpaku);
}
.ks-mini-ui-after .ks-mini-rule {
  width: 64px;
  height: 1px;
  background: var(--ks-kinpaku);
  margin-bottom: 14px;
}
.ks-mini-ui-after strong {
  color: var(--ks-champagne);
  font-size: 0.98rem;
  font-weight: 400;
  display: block;
}
.ks-mini-ui-after p {
  margin: 6px 0 0;
  color: var(--ks-muted);
  font-size: 0.82rem;
}

.ks-comparison-divider {
  position: absolute;
  top: -6%;
  left: 50%;
  width: 140px;
  height: 112%;
  transform: translateX(-50%);
  pointer-events: none;
  z-index: 4;
  background-image: url("/assets/neo-kinpaku/before-after-seam.png");
  background-repeat: no-repeat;
  background-position: center;
  background-size: auto 100%;
  filter: drop-shadow(0 0 16px oklch(77% 0.14 82 / 0.42)) saturate(1.22);
}

.ks-comparison-range {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  cursor: ew-resize;
  margin: 0;
}

.ks-audit-rows {
  display: grid;
  gap: 0;
}

.ks-audit-row {
  display: grid;
  grid-template-columns: 70px 1fr auto;
  gap: 18px;
  align-items: center;
  padding: 18px 0;
  border-bottom: 1px solid var(--ks-rule);
}
.ks-audit-row:first-child { padding-top: 0; }
.ks-audit-row:last-child { border-bottom: 0; }

.ks-severity {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--ks-mono);
  font-size: 0.7rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.ks-severity::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 999px;
}

.ks-severity.is-high { color: var(--ks-vermilion); }
.ks-severity.is-high::before { background: var(--ks-vermilion); }
.ks-severity.is-medium { color: var(--ks-kinpaku); }
.ks-severity.is-medium::before { background: var(--ks-kinpaku); }
.ks-severity.is-low { color: var(--ks-muted); }
.ks-severity.is-low::before { background: var(--ks-muted); }

.ks-audit-row-title {
  color: var(--ks-champagne);
  font-size: 0.96rem;
  font-weight: 400;
  display: block;
}

.ks-audit-row-meta {
  display: block;
  margin-top: 2px;
  color: var(--ks-muted);
  font-size: 0.82rem;
}

.ks-audit-status {
  color: var(--ks-muted);
  font-family: var(--ks-mono);
  font-size: 0.7rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}
.ks-audit-status.is-improved { color: var(--ks-patina); }
.ks-audit-status.is-ready { color: var(--ks-kinpaku); }

/* ============================================================================
   Component grids
   ============================================================================ */

.ks-component-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 56px;
  align-items: start;
}

.ks-component-grid-3 {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 48px;
  align-items: start;
}

.ks-component {
  display: grid;
  gap: 16px;
  align-self: start;
}

.ks-component-label {
  color: var(--ks-kinpaku);
  font-family: var(--ks-mono);
  font-size: 0.66rem;
  letter-spacing: 0.24em;
  text-transform: uppercase;
}

/* ============================================================================
   Footer (re-enabled)
   ============================================================================ */

.ks-footer {
  position: relative;
  border-top: 1px solid var(--ks-rule);
  padding: 80px 56px 56px;
  margin-top: 80px;
  overflow: hidden;
}

.ks-footer::after {
  content: "";
  position: absolute;
  right: -2%;
  top: -10%;
  width: 220px;
  height: 140%;
  background: url("/assets/neo-kinpaku/oxidation-edge-accent.png") right center / contain no-repeat;
  opacity: 0.85;
  pointer-events: none;
  filter: saturate(1.1);
}

.ks-footer-inner {
  position: relative;
  z-index: 1;
  max-width: 1320px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.3fr 2fr;
  gap: 64px;
}

.ks-footer-brand .ks-brand { margin-bottom: 22px; }

.ks-footer-tagline {
  color: var(--ks-muted);
  max-width: 280px;
  font-size: 0.92rem;
  line-height: 1.55;
}

.ks-footer-links {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 32px;
}

.ks-footer-col h4 {
  margin: 0 0 14px;
  color: var(--ks-kinpaku);
  font-family: var(--ks-mono);
  font-size: 0.66rem;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  font-weight: 500;
}

.ks-footer-col ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.ks-footer-col a {
  color: var(--ks-champagne);
  font-size: 0.92rem;
  text-decoration: none;
  transition: color 180ms var(--ks-ease);
}

.ks-footer-col a:hover { color: var(--ks-kinpaku); }

.ks-footer-meta {
  max-width: 1320px;
  margin: 56px auto 0;
  padding-top: 22px;
  border-top: 1px solid var(--ks-rule);
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  justify-content: space-between;
  align-items: center;
  position: relative;
  z-index: 1;
}

.ks-footer-meta small {
  color: var(--ks-mute-deep);
  font-size: 0.78rem;
}

.ks-footer-social {
  display: flex;
  gap: 14px;
}
.ks-footer-social a {
  width: 32px;
  height: 32px;
  display: grid;
  place-items: center;
  color: var(--ks-muted);
  border: 1px solid var(--ks-rule);
  border-radius: 2px;
  transition: color 180ms var(--ks-ease), border-color 180ms var(--ks-ease);
}
.ks-footer-social a:hover {
  color: var(--ks-kinpaku);
  border-color: var(--ks-kinpaku);
}
.ks-footer-social svg { width: 14px; height: 14px; }

/* ============================================================================
   Focus states
   ============================================================================ */

.kinpaku-system-page button:focus-visible,
.kinpaku-system-page a:focus-visible,
.kinpaku-system-page input:focus-visible,
.kinpaku-system-page select:focus-visible {
  outline: 2px solid var(--ks-patina);
  outline-offset: 3px;
}

/* ============================================================================
   Responsive
   ============================================================================ */

@media (max-width: 1080px) {
  .ks-section { padding: 80px 36px; }
  .ks-footer { padding: 64px 36px 40px; }
  .ks-hero { padding: 28px 36px 0; }
  .ks-category-rail { margin: 0 -36px; grid-template-columns: repeat(3, 1fr); }
  .ks-category-rail a:nth-child(4),
  .ks-category-rail a:nth-child(5) { display: none; }

  .ks-swatch-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 22px; }
  .ks-proof-grid { grid-template-columns: 1fr; }
  .ks-component-grid { grid-template-columns: 1fr; gap: 36px; }
  .ks-component-grid-3 { grid-template-columns: repeat(2, 1fr); gap: 32px; }
  .ks-footer-inner { grid-template-columns: 1fr; gap: 40px; }
  .ks-audit-result { padding: 24px; gap: 24px; }
}

@media (max-width: 720px) {
  .ks-section { padding: 64px 24px; }
  .ks-hero { padding: 20px 24px 0; }
  .ks-category-rail { margin: 0 -24px; grid-template-columns: repeat(2, 1fr); }
  .ks-category-rail a:nth-child(3) { display: none; }
  .ks-nav { display: none; }
  .ks-topbar > .ks-nav { display: none; }
  .ks-hero-actions { flex-direction: column; align-items: stretch; }
  .ks-hero-actions .ks-button { width: 100%; }
  .ks-swatch-grid { grid-template-columns: repeat(2, 1fr); }
  .ks-component-grid-3 { grid-template-columns: 1fr; }
  .ks-footer-links { grid-template-columns: 1fr 1fr; }
  .ks-audit-result { grid-template-columns: 1fr; gap: 24px; padding: 24px 0; }
  .ks-type-row { grid-template-columns: 1fr; gap: 12px; }
}

@media (prefers-reduced-motion: reduce) {
  .kinpaku-system-page *,
  .kinpaku-system-page *::before,
  .kinpaku-system-page *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}