.kinpaku-system-page {
  --ks-lacquer: oklch(7% 0.006 95);
  --ks-lacquer-2: oklch(10% 0.006 95);
  --ks-graphite: oklch(15% 0.008 95);
  --ks-graphite-2: oklch(20% 0.008 95);
  --ks-rule: oklch(45% 0.04 82 / 0.42);
  --ks-rule-soft: oklch(45% 0.04 82 / 0.22);
  --ks-kinpaku: oklch(78% 0.12 82);
  --ks-kinpaku-deep: oklch(62% 0.08 78);
  --ks-kinpaku-pale: oklch(88% 0.055 84);
  --ks-champagne: oklch(84% 0.035 82);
  --ks-text: oklch(78% 0.025 82);
  --ks-muted: oklch(58% 0.02 82);
  --ks-patina: oklch(69% 0.105 190);
  --ks-oxide: oklch(48% 0.08 188);
  --ks-vermilion: oklch(63% 0.16 35);
  --ks-shadow: oklch(2% 0.004 95 / 0.7);
  --ks-font: "Avenir Next", "Helvetica Neue", Arial, system-ui, sans-serif;
  --ks-mono: "SFMono-Regular", "Roboto Mono", Consolas, monospace;
  color: var(--ks-text);
  background:
    linear-gradient(180deg, oklch(3% 0.004 95 / 0.88), oklch(3% 0.004 95 / 0.97)),
    radial-gradient(circle at 80% 18%, oklch(28% 0.04 82 / 0.075), transparent 34rem),
    radial-gradient(circle at 18% 72%, oklch(69% 0.105 190 / 0.036), transparent 28rem),
    url("/assets/neo-kinpaku/lacquer-grain.png") center top / 1900px auto fixed,
    linear-gradient(180deg, var(--ks-lacquer), oklch(4% 0.004 95));
  font-family: var(--ks-font);
  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,
.kinpaku-system-page canvas,
.kinpaku-system-page video {
  display: block;
  max-width: 100%;
}

.kinpaku-system-page a {
  color: inherit;
}

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

.kinpaku-system-page::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  opacity: 0.11;
  background-image:
    linear-gradient(90deg, transparent 0, oklch(88% 0.055 84 / 0.06) 1px, transparent 1px),
    linear-gradient(180deg, transparent 0, oklch(88% 0.055 84 / 0.04) 1px, transparent 1px),
    url("data:image/svg+xml,%3Csvg viewBox='0 0 240 240' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.86' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='240' height='240' filter='url(%23n)' opacity='.42'/%3E%3C/svg%3E");
  background-size: 180px 180px, 180px 180px, 240px 240px;
  mask-image: linear-gradient(180deg, black, transparent 78%);
}

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

.kinpaku-system-page .skip-link {
  position: fixed;
  top: -96px;
  left: 50%;
  z-index: 1000;
  transform: translateX(-50%);
  padding: 12px 18px;
  border: 1px solid var(--ks-patina);
  border-radius: 4px;
  color: var(--ks-lacquer);
  background: var(--ks-patina);
  font-weight: 700;
  text-decoration: none;
  transition: transform 180ms cubic-bezier(0.16, 1, 0.3, 1);
}

.kinpaku-system-page .skip-link:focus {
  top: 16px;
}

.kinpaku-system-page .skip-link:focus:not(:focus-visible) {
  top: -96px;
}

.kinpaku-system h1,
.kinpaku-system h2,
.kinpaku-system h3,
.kinpaku-system p {
  color: inherit;
  letter-spacing: 0;
}

.ks-hero {
  min-height: 100svh;
  display: grid;
  grid-template-rows: auto 1fr auto;
  padding: 42px 44px 0;
  position: relative;
}

.ks-hero::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 91px;
  height: 18px;
  background: url("/assets/neo-kinpaku/gold-dust-rule.png") center / cover no-repeat;
  opacity: 0.4;
  mask-image: linear-gradient(90deg, transparent, black 10%, black 90%, transparent);
}

.ks-topbar,
.ks-header-sample {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
}

.ks-brand {
  display: inline-flex;
  align-items: center;
  gap: 22px;
  text-decoration: none;
}

.ks-mark {
  width: 46px;
  height: 46px;
  display: grid;
  place-items: center;
  border: 1px solid var(--ks-kinpaku-deep);
  border-radius: 6px;
  color: var(--ks-kinpaku);
  font-size: 26px;
  line-height: 1;
  box-shadow: inset 0 0 22px oklch(78% 0.12 82 / 0.07);
}

.ks-wordmark {
  color: var(--ks-kinpaku);
  font-size: 0.95rem;
  font-weight: 400;
  letter-spacing: 0.42em;
  text-transform: uppercase;
}

.ks-nav {
  display: flex;
  align-items: center;
  gap: 42px;
}

.ks-nav a,
.ks-nav-cta {
  color: var(--ks-champagne);
  font-size: 0.95rem;
  line-height: 1;
  text-decoration: none;
  transition: color 180ms cubic-bezier(0.16, 1, 0.3, 1);
}

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

.ks-nav a[aria-current="page"] {
  color: var(--ks-kinpaku);
  box-shadow: 0 12px 0 -10px var(--ks-kinpaku);
}

.ks-nav-cta {
  border: 1px solid var(--ks-kinpaku-deep);
  padding: 18px 34px;
  min-width: 142px;
  text-align: center;
}

.ks-hero-grid {
  display: grid;
  grid-template-columns: 1fr;
  align-items: center;
  position: relative;
  min-height: 560px;
  isolation: isolate;
}

.ks-hero-copy {
  position: relative;
  z-index: 2;
  max-width: 930px;
  padding-left: 54px;
}

.ks-kicker,
.ks-section-head > p,
.ks-component-group > h3,
.ks-token-panel > h3 {
  color: var(--ks-kinpaku);
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.34em;
  text-transform: uppercase;
}

.ks-hero h1 {
  margin-top: 112px;
  color: var(--ks-kinpaku);
  font-family: var(--ks-font);
  font-size: 5.5rem;
  font-weight: 300;
  line-height: 1;
  letter-spacing: 0.18em;
}

.ks-hero-line {
  margin-top: 28px;
  max-width: 640px;
  color: var(--ks-champagne);
  font-size: 1.45rem;
  line-height: 1.65;
}

.ks-hero-actions,
.ks-button-row {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 18px;
}

.ks-hero-actions {
  margin-top: 42px;
}

.ks-button {
  min-height: 56px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 18px;
  padding: 0 34px;
  border-radius: 2px;
  font-size: 1rem;
  line-height: 1;
  text-decoration: none;
  border: 1px solid transparent;
  transition:
    transform 220ms cubic-bezier(0.16, 1, 0.3, 1),
    border-color 220ms cubic-bezier(0.16, 1, 0.3, 1),
    background 220ms cubic-bezier(0.16, 1, 0.3, 1),
    color 220ms cubic-bezier(0.16, 1, 0.3, 1);
  cursor: pointer;
}

.ks-button:hover {
  transform: translateY(-2px);
}

.ks-button:focus-visible,
.ks-nav a:focus-visible,
.ks-nav-cta:focus-visible,
.ks-brand:focus-visible,
.ks-category-rail a:focus-visible,
.ks-rule-card a:focus-visible,
.ks-menu-button:focus-visible,
.ks-icon-button:focus-visible,
.ks-tabs button:focus-visible,
.ks-form-sample input:focus-visible {
  outline: 2px solid var(--ks-patina);
  outline-offset: 4px;
}

.ks-button-primary {
  background:
    linear-gradient(90deg, oklch(92% 0.065 84 / 0.4), oklch(78% 0.12 82 / 0.7)),
    url("/assets/neo-kinpaku/kinpaku-gold-leaf.png") center / 150% auto;
  color: oklch(9% 0.006 95);
  box-shadow:
    inset 0 0 18px oklch(100% 0 0 / 0.08),
    0 18px 42px oklch(2% 0.004 95 / 0.35);
}

.kinpaku-system-page .ks-button-primary {
  color: oklch(9% 0.006 95) !important;
}

.kinpaku-system-page .ks-button-primary span {
  color: oklch(9% 0.006 95);
}

.ks-button-primary:hover {
  background:
    linear-gradient(90deg, oklch(96% 0.05 84 / 0.32), oklch(78% 0.12 82 / 0.42)),
    url("/assets/neo-kinpaku/kinpaku-gold-leaf.png") 60% 46% / 135% auto;
}

.ks-button-secondary,
.ks-button-ghost {
  background: transparent;
  color: var(--ks-kinpaku);
  border-color: var(--ks-kinpaku-deep);
}

.kinpaku-system-page .ks-button-secondary,
.kinpaku-system-page .ks-button-ghost,
.kinpaku-system-page .ks-nav-cta {
  color: var(--ks-kinpaku);
}

.ks-button-secondary:hover,
.ks-button-ghost:hover {
  border-color: var(--ks-patina);
  color: var(--ks-patina);
}

.ks-button-disabled,
.ks-button-disabled:hover {
  background: oklch(18% 0.008 95);
  color: var(--ks-muted);
  border-color: var(--ks-rule-soft);
  transform: none;
  cursor: not-allowed;
}

.ks-note {
  margin-top: 42px;
  display: grid;
  grid-template-columns: 90px minmax(0, 1fr);
  align-items: start;
  gap: 16px;
  max-width: 460px;
  color: var(--ks-muted);
  font-size: 1rem;
  line-height: 1.7;
}

.ks-note-pin {
  height: 54px;
  border-top: 1px solid var(--ks-kinpaku-deep);
  border-left: 1px solid var(--ks-kinpaku-deep);
  position: relative;
}

.ks-note-pin::before,
.ks-note-pin::after {
  content: "";
  position: absolute;
  border-radius: 999px;
  background: var(--ks-kinpaku);
}

.ks-note-pin::before {
  top: -4px;
  left: -4px;
  width: 8px;
  height: 8px;
}

.ks-note-pin::after {
  top: -3px;
  right: -2px;
  width: 6px;
  height: 6px;
}

.ks-hero-art {
  position: absolute;
  inset: 0 -44px 0 -44px;
  z-index: 0;
  pointer-events: none;
  background:
    linear-gradient(90deg, oklch(4% 0.004 95 / 0.74) 0%, oklch(4% 0.004 95 / 0.24) 42%, transparent 68%),
    linear-gradient(180deg, oklch(4% 0.004 95 / 0.22) 0%, transparent 52%, oklch(4% 0.004 95 / 0.52) 100%),
    url("/assets/neo-kinpaku/hero-seam-field-v2.png") center / cover no-repeat;
  filter: saturate(1.16) contrast(1.1) brightness(1.04);
  mask-image:
    linear-gradient(90deg, transparent 0%, black 12%, black 100%),
    linear-gradient(180deg, black 0%, black 88%, transparent 100%);
  mask-composite: intersect;
}

.ks-circuit-field {
  position: absolute;
  right: 0;
  top: 4%;
  width: min(920px, 62vw);
  height: 76%;
  overflow: visible;
  opacity: 0.68;
  mix-blend-mode: screen;
}

.ks-circuit-field path,
.ks-circuit-field circle,
.ks-circuit-specimen path,
.ks-circuit-specimen circle {
  vector-effect: non-scaling-stroke;
}

.ks-circuit-lines path {
  fill: none;
  stroke: var(--ks-kinpaku-deep);
  stroke-width: 1.1;
  stroke-linecap: round;
  stroke-linejoin: round;
  opacity: 0.74;
}

.ks-circuit-nodes circle {
  fill: oklch(5% 0.004 95 / 0.78);
  stroke: var(--ks-kinpaku);
  stroke-width: 1.2;
  opacity: 0.9;
}

.ks-foil-seam {
  position: absolute;
  top: 24%;
  right: 24%;
  width: 18px;
  height: 58%;
  transform: rotate(44deg);
  background:
    radial-gradient(circle at 52% 10%, oklch(95% 0.04 84 / 0.9), transparent 9px),
    radial-gradient(circle at 34% 38%, oklch(86% 0.08 82 / 0.95), transparent 12px),
    radial-gradient(circle at 72% 58%, oklch(94% 0.05 84 / 0.9), transparent 10px),
    linear-gradient(180deg, transparent, var(--ks-kinpaku) 12%, var(--ks-kinpaku-deep) 52%, var(--ks-kinpaku-pale) 82%, transparent);
  clip-path: polygon(42% 0, 62% 8%, 47% 20%, 70% 33%, 41% 50%, 58% 66%, 38% 82%, 54% 100%, 25% 100%, 39% 82%, 20% 68%, 42% 49%, 18% 34%, 39% 19%, 24% 7%);
  filter: drop-shadow(0 0 16px oklch(78% 0.12 82 / 0.38));
  opacity: 0.22;
}

.ks-foil-seam::before {
  content: "";
  position: absolute;
  inset: -18px -32px;
  background:
    radial-gradient(circle, oklch(78% 0.12 82 / 0.75) 0 1px, transparent 2px),
    radial-gradient(circle, oklch(78% 0.12 82 / 0.4) 0 1px, transparent 3px);
  background-size: 18px 14px, 31px 27px;
  mask-image: linear-gradient(90deg, transparent, black 36%, transparent 78%);
}

.ks-calibration {
  position: absolute;
  border: 1px solid var(--ks-rule);
  opacity: 0.68;
}

.ks-calibration::before,
.ks-calibration::after {
  content: "";
  position: absolute;
  background: var(--ks-kinpaku-deep);
}

.ks-calibration-one {
  right: 0;
  top: 16%;
  width: 380px;
  height: 250px;
  border-left: 0;
}

.ks-calibration-one::before {
  top: 54%;
  left: -120px;
  width: 220px;
  height: 1px;
}

.ks-calibration-one::after {
  top: -22px;
  left: 38%;
  width: 1px;
  height: 300px;
}

.ks-calibration-two {
  right: 9%;
  bottom: 22%;
  width: 460px;
  height: 112px;
  border-right: 0;
  border-bottom: 0;
}

.ks-calibration-two::before {
  left: 12%;
  top: 50%;
  width: 100%;
  height: 1px;
}

.ks-calibration-two::after {
  left: 22%;
  bottom: -35px;
  width: 1px;
  height: 100px;
}

.ks-patina-dot {
  position: absolute;
  width: 8px;
  height: 8px;
  border-radius: 999px;
  background: var(--ks-patina);
  box-shadow: 0 0 22px var(--ks-patina);
  opacity: 0.9;
}

.ks-patina-dot-one {
  right: 8%;
  top: 47%;
}

.ks-patina-dot-two {
  right: 34%;
  bottom: 25%;
}

.ks-category-rail {
  min-height: 92px;
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  border-top: 1px solid var(--ks-rule-soft);
}

.ks-category-rail a {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  color: var(--ks-champagne);
  text-decoration: none;
  font-size: 1.05rem;
  border-right: 1px solid var(--ks-rule-soft);
}

.ks-category-rail a:last-child {
  border-right: 0;
}

.ks-category-rail a:hover {
  color: var(--ks-patina);
}

.ks-rail-icon,
.ks-rule-icon {
  width: 28px;
  height: 28px;
  flex: none;
  display: inline-grid;
  place-items: center;
  color: var(--ks-kinpaku);
  border: 1px solid var(--ks-kinpaku-deep);
}

.ks-rail-layout,
.ks-rail-color {
  background:
    linear-gradient(90deg, transparent 47%, var(--ks-kinpaku-deep) 47% 53%, transparent 53%),
    linear-gradient(180deg, transparent 47%, var(--ks-kinpaku-deep) 47% 53%, transparent 53%);
}

.ks-rail-type {
  font-family: Georgia, serif;
  font-size: 1rem;
}

.ks-rail-color {
  border-radius: 999px;
}

.ks-rail-motion {
  border: 0;
  background:
    linear-gradient(160deg, transparent 0 32%, var(--ks-kinpaku) 32% 37%, transparent 37% 60%, var(--ks-kinpaku) 60% 65%, transparent 65%);
}

.ks-rail-access {
  border-radius: 999px;
  position: relative;
}

.ks-rail-access::before,
.ks-rail-access::after {
  content: "";
  position: absolute;
  background: var(--ks-kinpaku);
}

.ks-rail-access::before {
  width: 14px;
  height: 1px;
  top: 9px;
  left: 6px;
}

.ks-rail-access::after {
  width: 1px;
  height: 13px;
  top: 9px;
  left: 13px;
}

.ks-section {
  max-width: 1500px;
  margin: 0 auto;
  padding: 118px 44px;
  border-top: 1px solid var(--ks-rule-soft);
}

.ks-section-head {
  max-width: 760px;
  margin-bottom: 52px;
}

.ks-section-head h2 {
  margin-top: 14px;
  color: var(--ks-champagne);
  font-size: 2.55rem;
  font-weight: 400;
  line-height: 1.12;
}

.ks-token-layout,
.ks-action-grid,
.ks-proof-layout,
.ks-content-modules,
.ks-utility-grid {
  display: grid;
  gap: 24px;
}

.ks-token-layout {
  grid-template-columns: minmax(0, 1.25fr) minmax(360px, 0.75fr);
}

.ks-token-panel,
.ks-component-group,
.ks-doc-module,
.ks-pricing-module,
.ks-changelog-module,
.ks-before-after,
.ks-audit-row,
.ks-toast,
.ks-tooltip-sample,
.ks-skeleton {
  background:
    linear-gradient(135deg, oklch(100% 0 0 / 0.024), transparent 38%),
    linear-gradient(180deg, oklch(5% 0.004 95 / 0.74), oklch(5% 0.004 95 / 0.96)),
    url("/assets/neo-kinpaku/lacquer-grain.png") center / 960px auto,
    oklch(11% 0.006 95 / 0.92);
  border: 1px solid var(--ks-rule-soft);
  border-radius: 8px;
  box-shadow: 0 24px 70px var(--ks-shadow);
}

.ks-token-panel,
.ks-component-group {
  padding: 28px;
}

.ks-swatch-grid {
  margin-top: 28px;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}

.ks-swatch {
  display: grid;
  gap: 10px;
  padding: 14px;
  min-height: 138px;
  background: oklch(7% 0.004 95 / 0.7);
  border: 1px solid var(--ks-rule-soft);
  border-radius: 6px;
}

.ks-swatch-chip {
  width: 100%;
  height: 48px;
  border-radius: 4px;
  border: 1px solid oklch(100% 0 0 / 0.08);
}

.ks-swatch strong,
.ks-swatch small {
  display: block;
}

.ks-swatch strong {
  color: var(--ks-champagne);
  font-size: 0.92rem;
}

.ks-swatch small {
  color: var(--ks-muted);
  font-family: var(--ks-mono);
  font-size: 0.68rem;
  line-height: 1.45;
}

.ks-swatch-lacquer { background: var(--ks-lacquer); }
.ks-swatch-graphite {
  background:
    linear-gradient(180deg, oklch(15% 0.008 95 / 0.74), oklch(5% 0.004 95 / 0.9)),
    url("/assets/neo-kinpaku/lacquer-grain.png") center / cover;
}
.ks-swatch-kinpaku {
  background:
    linear-gradient(180deg, oklch(96% 0.035 84 / 0.14), oklch(62% 0.08 78 / 0.22)),
    url("/assets/neo-kinpaku/kinpaku-gold-leaf.png") center / cover;
}
.ks-swatch-brass {
  background:
    linear-gradient(180deg, oklch(52% 0.08 78 / 0.18), oklch(24% 0.05 78 / 0.24)),
    url("/assets/neo-kinpaku/kinpaku-gold-leaf.png") 66% 48% / 170% auto;
}
.ks-swatch-champagne { background: var(--ks-champagne); }
.ks-swatch-patina {
  background:
    linear-gradient(180deg, oklch(80% 0.08 190 / 0.1), oklch(26% 0.05 188 / 0.2)),
    url("/assets/neo-kinpaku/verdigris-patina.png") center / cover;
}
.ks-swatch-teal {
  background:
    linear-gradient(180deg, oklch(48% 0.08 188 / 0.22), oklch(12% 0.035 188 / 0.36)),
    url("/assets/neo-kinpaku/verdigris-patina.png") 72% 64% / 165% auto;
}
.ks-swatch-vermilion { background: var(--ks-vermilion); }

.ks-type-panel {
  display: grid;
  align-content: start;
  gap: 24px;
}

.ks-type-spec {
  display: grid;
  gap: 8px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--ks-rule-soft);
}

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

.ks-type-spec span {
  color: var(--ks-kinpaku);
  font-family: var(--ks-mono);
  font-size: 0.72rem;
}

.ks-type-spec strong {
  color: var(--ks-champagne);
  font-weight: 400;
}

.ks-type-spec:first-of-type strong {
  color: var(--ks-kinpaku);
  font-size: 2.35rem;
  letter-spacing: 0.18em;
}

.ks-type-spec:first-of-type p {
  max-width: 44ch;
  font-size: 0.86rem;
}

.ks-accent-library {
  margin-top: 24px;
  display: grid;
  grid-template-columns: 0.8fr 1fr 1fr 1.1fr;
  gap: 16px;
}

.ks-accent-card {
  min-height: 150px;
  padding: 20px;
  overflow: hidden;
  position: relative;
  border: 1px solid var(--ks-rule-soft);
  border-radius: 8px;
  background:
    linear-gradient(180deg, oklch(5% 0.004 95 / 0.78), oklch(4% 0.004 95 / 0.94)),
    url("/assets/neo-kinpaku/lacquer-grain.png") center / 920px auto;
}

.ks-accent-card > span {
  color: var(--ks-kinpaku);
  font-family: var(--ks-mono);
  font-size: 0.68rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.ks-pin-field {
  position: absolute;
  inset: 56px 24px 24px;
}

.ks-pin-field i {
  position: absolute;
  width: 42px;
  height: 42px;
  border-top: 1px solid var(--ks-kinpaku-deep);
  border-left: 1px solid var(--ks-kinpaku-deep);
}

.ks-pin-field i::before,
.ks-pin-field i::after {
  content: "";
  position: absolute;
  background: var(--ks-kinpaku);
}

.ks-pin-field i::before {
  top: 19px;
  left: -14px;
  width: 70px;
  height: 1px;
}

.ks-pin-field i::after {
  top: -14px;
  left: 19px;
  width: 1px;
  height: 70px;
}

.ks-pin-field i:nth-child(1) {
  left: 0;
  top: 12px;
}

.ks-pin-field i:nth-child(2) {
  left: 92px;
  top: 30px;
  transform: scale(0.64);
}

.ks-pin-field i:nth-child(3) {
  right: 0;
  top: 0;
  transform: scale(0.46);
  opacity: 0.7;
}

.ks-dust-field {
  position: absolute;
  left: 22px;
  right: 22px;
  top: 74px;
  height: 52px;
  background: url("/assets/neo-kinpaku/gold-dust-rule.png") center / cover no-repeat;
  opacity: 0.64;
  mask-image: linear-gradient(90deg, transparent, black 8%, black 92%, transparent);
}

.ks-circuit-specimen {
  position: absolute;
  left: 22px;
  right: 22px;
  bottom: 18px;
  width: calc(100% - 44px);
  height: 94px;
}

.ks-circuit-specimen path {
  fill: none;
  stroke: var(--ks-kinpaku-deep);
  stroke-width: 1.35;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.ks-circuit-specimen circle {
  fill: oklch(5% 0.004 95);
  stroke: var(--ks-kinpaku);
  stroke-width: 1.35;
}

.ks-oxidation-field {
  position: absolute;
  inset: 12px -28px -32px auto;
  width: 270px;
  background: url("/assets/neo-kinpaku/oxidation-edge-accent.png") center bottom / contain no-repeat;
  opacity: 0.72;
}

.ks-type-spec:nth-of-type(2) strong {
  font-size: 1.55rem;
}

.ks-type-spec p {
  color: var(--ks-muted);
  line-height: 1.65;
}

.ks-component-strip {
  padding: 26px;
  border: 1px solid var(--ks-rule-soft);
  border-radius: 8px;
  background: oklch(9% 0.006 95 / 0.72);
}

.ks-header-sample {
  min-height: 82px;
  padding: 0 22px;
  background: var(--ks-lacquer-2);
  border: 1px solid var(--ks-rule-soft);
  border-radius: 6px;
}

.ks-brand-small .ks-mark {
  width: 38px;
  height: 38px;
  font-size: 22px;
}

.ks-brand-small .ks-wordmark {
  font-size: 0.78rem;
}

.ks-menu-button {
  width: 48px;
  height: 48px;
  display: grid;
  place-content: center;
  gap: 7px;
  background: transparent;
  border: 0;
  color: var(--ks-kinpaku);
  cursor: pointer;
}

.ks-menu-button span {
  width: 24px;
  height: 1px;
  background: currentColor;
}

.ks-action-grid {
  grid-template-columns: 1.05fr 0.95fr 0.9fr;
}

.ks-form-sample {
  display: grid;
  gap: 20px;
  margin-top: 24px;
}

.ks-form-sample label {
  display: grid;
  gap: 8px;
  color: var(--ks-muted);
  font-size: 0.86rem;
}

.ks-form-sample input[type="search"] {
  min-height: 48px;
  padding: 0 14px;
  border: 1px solid var(--ks-rule);
  border-radius: 4px;
  background: oklch(6% 0.004 95);
  color: var(--ks-champagne);
}

.ks-form-sample input[type="search"]:focus {
  border-color: var(--ks-patina);
}

.ks-toggle {
  display: flex !important;
  grid-template-columns: none;
  align-items: center;
  gap: 12px !important;
}

.ks-toggle input {
  appearance: none;
  width: 48px;
  height: 26px;
  border-radius: 999px;
  border: 1px solid var(--ks-rule);
  background: var(--ks-graphite);
  position: relative;
  cursor: pointer;
}

.ks-toggle input::before {
  content: "";
  position: absolute;
  width: 18px;
  height: 18px;
  left: 3px;
  top: 3px;
  border-radius: 999px;
  background: var(--ks-muted);
  transition: transform 220ms cubic-bezier(0.16, 1, 0.3, 1), background 220ms cubic-bezier(0.16, 1, 0.3, 1);
}

.ks-toggle input:checked {
  border-color: var(--ks-patina);
  background: oklch(48% 0.08 188 / 0.2);
}

.ks-toggle input:checked::before {
  transform: translateX(22px);
  background: var(--ks-patina);
}

.ks-tabs {
  margin-top: 24px;
}

.ks-tab-list {
  display: flex;
  border-bottom: 1px solid var(--ks-rule-soft);
}

.ks-tab-list button {
  flex: 1;
  min-height: 44px;
  border: 0;
  border-bottom: 2px solid transparent;
  background: transparent;
  color: var(--ks-muted);
  cursor: pointer;
}

.ks-tab-list button[aria-selected="true"] {
  color: var(--ks-kinpaku);
  border-bottom-color: var(--ks-kinpaku);
}

.ks-tab-panel {
  min-height: 86px;
  padding: 20px 4px 0;
  color: var(--ks-champagne);
  line-height: 1.65;
}

.ks-proof-layout {
  grid-template-columns: minmax(0, 1.25fr) minmax(360px, 0.75fr);
  align-items: stretch;
}

.ks-before-after {
  padding: 22px;
}

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

.ks-comparison-head h3 {
  color: var(--ks-champagne);
  font-size: 1.05rem;
  font-weight: 500;
}

.ks-comparison-head span {
  color: var(--ks-muted);
  font-family: var(--ks-mono);
  font-size: 0.72rem;
  text-transform: uppercase;
}

.ks-comparison-stage {
  position: relative;
  min-height: 480px;
  overflow: hidden;
  border: 1px solid var(--ks-rule-soft);
  border-radius: 6px;
  background:
    linear-gradient(90deg, oklch(100% 0 0 / 0.026) 1px, transparent 1px),
    linear-gradient(180deg, oklch(100% 0 0 / 0.018) 1px, transparent 1px),
    radial-gradient(circle at 74% 50%, oklch(69% 0.105 190 / 0.08), transparent 18rem),
    linear-gradient(180deg, oklch(5% 0.004 95 / 0.42), oklch(5% 0.004 95 / 0.95)),
    url("/assets/neo-kinpaku/lacquer-grain.png") center / 900px auto,
    oklch(7% 0.004 95);
  background-size: 36px 36px, 36px 36px, auto, auto, 900px auto, auto;
}

.ks-comparison-side {
  position: absolute;
  inset: 0;
  padding: 28px;
}

.ks-comparison-before {
  background:
    radial-gradient(circle at 30% 42%, oklch(62% 0.18 305 / 0.1), transparent 15rem),
    linear-gradient(180deg, transparent, oklch(3% 0.004 95 / 0.34));
}

.ks-comparison-after {
  background:
    radial-gradient(circle at 76% 46%, oklch(69% 0.105 190 / 0.11), transparent 18rem),
    linear-gradient(90deg, oklch(5% 0.004 95 / 0.88), oklch(7% 0.006 95 / 0.96));
}

.ks-badge {
  display: inline-flex;
  align-items: center;
  min-height: 30px;
  padding: 0 12px;
  border: 1px solid currentColor;
  border-radius: 3px;
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
}

.ks-badge-warning {
  color: var(--ks-vermilion);
}

.ks-badge-success {
  color: var(--ks-patina);
}

.ks-mini-ui {
  width: min(350px, 44%);
  min-height: 258px;
  padding: 18px;
  border: 1px solid var(--ks-rule-soft);
  border-radius: 7px;
  box-shadow: 0 22px 58px oklch(1% 0.004 95 / 0.42);
}

.ks-mini-ui strong {
  display: block;
  color: var(--ks-champagne);
  font-size: 1rem;
  font-weight: 600;
}

.ks-mini-ui p {
  margin-top: 8px;
  color: var(--ks-muted);
  font-size: 0.82rem;
  line-height: 1.45;
}

.ks-mini-ui button {
  width: 100%;
  min-height: 46px;
  margin-top: 18px;
  border: 0;
  border-radius: 4px;
}

.ks-mini-ui-before {
  margin: 58px auto 0 7%;
  background: oklch(96% 0.01 285);
  color: oklch(20% 0.02 285);
  box-shadow: 0 18px 50px oklch(78% 0.2 300 / 0.16);
  background:
    linear-gradient(135deg, oklch(100% 0 0 / 0.06), transparent 44%),
    linear-gradient(180deg, oklch(17% 0.008 95), oklch(8% 0.006 95));
}

.ks-mini-ui-before strong {
  color: oklch(90% 0.018 82);
}

.ks-mini-ui-before p {
  color: oklch(58% 0.02 82);
}

.ks-mini-ui-before button {
  color: oklch(98% 0.01 285);
  background: linear-gradient(90deg, oklch(62% 0.24 285), oklch(48% 0.22 315));
}

.ks-mini-toolbar {
  display: flex;
  align-items: center;
  gap: 9px;
}

.ks-mini-toolbar span {
  height: 4px;
  width: 42px;
  display: block;
  border-radius: 999px;
  background: oklch(54% 0.01 95 / 0.55);
}

.ks-mini-toolbar span:first-child {
  width: 18px;
  height: 18px;
  border-radius: 999px;
  background: oklch(54% 0.01 95 / 0.55);
}

.ks-mini-toolbar span:last-child {
  margin-left: auto;
  width: 34px;
}

.ks-mini-toolbar-after span {
  background: var(--ks-kinpaku-deep);
}

.ks-mini-toolbar-after span:first-child {
  background: var(--ks-kinpaku);
}

.ks-slop-card {
  margin-top: 16px;
  padding: 22px;
  border: 1px solid oklch(100% 0 0 / 0.08);
  border-radius: 7px;
  background:
    radial-gradient(circle at 22% 18%, oklch(66% 0.22 285 / 0.34), transparent 4.5rem),
    linear-gradient(135deg, oklch(100% 0 0 / 0.08), oklch(100% 0 0 / 0.02));
}

.ks-ui-orb {
  width: 42px;
  height: 42px;
  display: block;
  margin-bottom: 16px;
  border-radius: 999px;
  background: linear-gradient(135deg, oklch(65% 0.22 285), oklch(54% 0.25 310));
}

.ks-mini-tile-row {
  margin-top: 14px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 10px;
}

.ks-mini-tile-row span {
  min-height: 26px;
  border: 1px solid oklch(100% 0 0 / 0.08);
  border-radius: 4px;
  background: linear-gradient(180deg, oklch(100% 0 0 / 0.09), oklch(100% 0 0 / 0.02));
}

.ks-mini-ui-after {
  width: min(390px, 50%);
  margin: 58px 6% 0 auto;
  background:
    linear-gradient(135deg, oklch(78% 0.12 82 / 0.1), transparent),
    oklch(10% 0.006 95);
}

.ks-after-layout {
  margin-top: 18px;
  display: grid;
  grid-template-columns: 0.9fr 1fr;
  gap: 18px;
  align-items: start;
}

.ks-after-visual {
  aspect-ratio: 1.2;
  border: 1px solid var(--ks-rule-soft);
  border-radius: 5px;
  background:
    linear-gradient(180deg, transparent 50%, oklch(5% 0.004 95 / 0.92)),
    url("/assets/neo-kinpaku/kinpaku-gold-leaf.png") 48% 42% / 190% auto,
    oklch(9% 0.006 95);
  filter: saturate(0.72) contrast(1.02);
}

.ks-after-copy {
  display: grid;
  align-content: start;
}

.ks-ui-rule {
  width: 86px;
  height: 1px;
  display: block;
  margin-bottom: 18px;
  background: var(--ks-kinpaku);
  box-shadow: 94px 0 0 var(--ks-patina);
}

.ks-after-metrics {
  margin-top: 18px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}

.ks-after-metrics span {
  height: 36px;
  border-top: 1px solid var(--ks-kinpaku-deep);
  border-bottom: 1px solid var(--ks-rule-soft);
  background:
    linear-gradient(90deg, var(--ks-kinpaku-deep) 0 58%, transparent 58%) 0 9px / 100% 2px no-repeat,
    linear-gradient(90deg, oklch(69% 0.105 190 / 0.5) 0 28%, transparent 28%) 0 23px / 100% 2px no-repeat;
}

.ks-callout {
  position: absolute;
  min-height: 30px;
  display: inline-flex;
  align-items: center;
  padding: 0 12px;
  border-radius: 3px;
  font-size: 0.76rem;
  font-weight: 600;
}

.ks-callout-warning {
  left: 8%;
  bottom: 34%;
  border: 1px solid var(--ks-vermilion);
  color: var(--ks-vermilion);
  background: oklch(9% 0.006 95 / 0.8);
}

.ks-callout-low {
  bottom: 18%;
  left: 12%;
}

.ks-callout-success {
  right: 12%;
  bottom: 26%;
  border: 1px solid var(--ks-patina);
  color: var(--ks-patina);
  background: oklch(9% 0.006 95 / 0.8);
}

.ks-comparison-divider {
  position: absolute;
  top: -9%;
  left: 56%;
  width: 150px;
  height: 118%;
  transform: translateX(-50%);
  transform-origin: center;
  pointer-events: none;
  z-index: 4;
  background: url("/assets/neo-kinpaku/before-after-seam.png") center / auto 100% no-repeat;
  filter: drop-shadow(0 0 11px oklch(78% 0.12 82 / 0.28));
}

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

.ks-audit-stack {
  display: grid;
  gap: 14px;
}

.ks-audit-row {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 18px;
  align-items: center;
  padding: 18px;
}

.ks-audit-row strong,
.ks-doc-module h3,
.ks-pricing-module h3,
.ks-changelog-module h3,
.ks-rule-card h3 {
  color: var(--ks-champagne);
  font-weight: 500;
}

.ks-audit-row p,
.ks-doc-module p,
.ks-pricing-module p,
.ks-changelog-module p {
  margin-top: 4px;
  color: var(--ks-muted);
  line-height: 1.55;
}

.ks-severity,
.ks-status {
  min-height: 28px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0 10px;
  border-radius: 3px;
  font-size: 0.72rem;
  font-weight: 600;
}

.ks-severity-high {
  color: var(--ks-vermilion);
  border: 1px solid var(--ks-vermilion);
}

.ks-severity-medium {
  color: var(--ks-kinpaku);
  border: 1px solid var(--ks-kinpaku-deep);
}

.ks-severity-low {
  color: var(--ks-muted);
  border: 1px solid var(--ks-rule);
}

.ks-status {
  color: var(--ks-kinpaku);
}

.ks-status-ready,
.ks-status-fixed {
  color: var(--ks-patina);
}

.ks-card-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 16px;
}

.ks-rule-card {
  min-height: 260px;
  display: grid;
  align-content: start;
  gap: 18px;
  padding: 24px;
  border: 1px solid var(--ks-rule-soft);
  border-radius: 8px;
  background: oklch(10% 0.006 95 / 0.82);
  text-decoration: none;
  transition: transform 220ms cubic-bezier(0.16, 1, 0.3, 1), border-color 220ms cubic-bezier(0.16, 1, 0.3, 1);
}

.ks-rule-card::before {
  content: "";
  width: 100%;
  height: 18px;
  display: block;
  order: -1;
  margin-bottom: 2px;
  background: url("/assets/neo-kinpaku/gold-dust-rule.png") center / cover no-repeat;
  opacity: 0.32;
  mask-image: linear-gradient(90deg, black, transparent 72%);
}

.ks-rule-card:hover {
  transform: translateY(-3px);
  border-color: var(--ks-kinpaku-deep);
}

.ks-rule-card p,
.ks-doc-module > span,
.ks-pricing-module > span,
.ks-changelog-module > span {
  color: var(--ks-kinpaku);
  font-family: var(--ks-mono);
  font-size: 0.72rem;
  text-transform: uppercase;
}

.ks-rule-card h3 {
  font-size: 1.18rem;
  line-height: 1.35;
}

.ks-rule-card a {
  margin-top: auto;
  color: var(--ks-patina);
  text-decoration: none;
}

.ks-content-modules {
  margin-top: 24px;
  grid-template-columns: 1.1fr 0.85fr 0.85fr;
}

.ks-doc-module,
.ks-pricing-module,
.ks-changelog-module {
  padding: 26px;
}

.ks-doc-module h3,
.ks-pricing-module h3,
.ks-changelog-module h3 {
  margin-top: 16px;
  font-size: 1.35rem;
}

.ks-doc-module pre {
  margin-top: 18px;
  padding: 18px;
  overflow-x: auto;
  border: 1px solid var(--ks-rule-soft);
  border-radius: 6px;
  color: var(--ks-patina);
  background: oklch(5% 0.004 95);
}

.ks-doc-module code {
  padding: 0;
  background: transparent;
  color: inherit;
  border-radius: 0;
}

.ks-pricing-module .ks-button {
  margin-top: 22px;
  width: 100%;
}

.ks-utility-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.ks-toast,
.ks-tooltip-sample,
.ks-skeleton {
  min-height: 126px;
  padding: 20px;
}

.ks-toast strong,
.ks-toast span {
  display: block;
}

.ks-toast strong {
  color: var(--ks-champagne);
}

.ks-toast span {
  margin-top: 8px;
  color: var(--ks-muted);
  line-height: 1.5;
}

.ks-toast-success {
  border-color: oklch(69% 0.105 190 / 0.36);
  background:
    linear-gradient(90deg, oklch(4% 0.004 95 / 0.42), oklch(4% 0.004 95 / 0.78)),
    linear-gradient(90deg, oklch(69% 0.105 190 / 0.2), transparent 34%),
    url("/assets/neo-kinpaku/verdigris-patina.png") 20% 44% / 260% auto,
    oklch(11% 0.006 95 / 0.92);
}

.ks-toast-success span {
  color: oklch(88% 0.028 82);
}

.ks-toast-warning {
  border-color: oklch(63% 0.16 35 / 0.36);
}

.ks-tooltip-sample {
  display: grid;
  place-items: center;
  position: relative;
}

.ks-icon-button {
  width: 42px;
  height: 42px;
  border: 1px solid var(--ks-kinpaku-deep);
  border-radius: 999px;
  background: transparent;
  color: var(--ks-kinpaku);
  cursor: pointer;
}

.ks-tooltip {
  position: absolute;
  left: 50%;
  bottom: 18px;
  transform: translateX(-50%);
  width: 220px;
  padding: 10px 12px;
  border-radius: 4px;
  color: var(--ks-champagne);
  background: oklch(4% 0.004 95);
  border: 1px solid var(--ks-rule);
  box-shadow: 0 18px 36px var(--ks-shadow);
  font-size: 0.78rem;
  line-height: 1.45;
  opacity: 0;
  pointer-events: none;
  transition: opacity 180ms cubic-bezier(0.16, 1, 0.3, 1), transform 180ms cubic-bezier(0.16, 1, 0.3, 1);
}

.ks-icon-button:hover + .ks-tooltip,
.ks-icon-button:focus-visible + .ks-tooltip {
  opacity: 1;
  transform: translateX(-50%) translateY(-8px);
}

.ks-skeleton {
  display: grid;
  align-content: center;
  gap: 14px;
}

.ks-skeleton span {
  height: 14px;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--ks-graphite), oklch(69% 0.105 190 / 0.14), var(--ks-graphite));
  background-size: 240% 100%;
  animation: ks-skeleton 2s cubic-bezier(0.16, 1, 0.3, 1) infinite;
}

.ks-skeleton span:nth-child(2) {
  width: 72%;
}

.ks-skeleton span:nth-child(3) {
  width: 48%;
}

.ks-implementation {
  padding-bottom: 150px;
  position: relative;
  overflow: hidden;
}

.ks-implementation::after {
  content: "";
  position: absolute;
  right: -150px;
  bottom: -120px;
  width: 500px;
  height: 860px;
  pointer-events: none;
  background: url("/assets/neo-kinpaku/oxidation-edge-accent.png") center bottom / contain no-repeat;
  opacity: 0.44;
  filter: saturate(0.92);
}

.ks-implementation > * {
  position: relative;
  z-index: 1;
}

.ks-build-plan {
  display: grid;
  gap: 12px;
  counter-reset: build-plan;
  list-style: none;
  padding: 0;
}

.ks-build-plan li {
  counter-increment: build-plan;
  display: grid;
  grid-template-columns: 46px minmax(0, 1fr);
  gap: 16px;
  align-items: start;
  padding: 22px;
  border: 1px solid var(--ks-rule-soft);
  border-radius: 8px;
  background: oklch(10% 0.006 95 / 0.72);
  color: var(--ks-muted);
  line-height: 1.65;
}

.ks-build-plan li > span {
  min-width: 0;
}

.ks-build-plan li::before {
  content: counter(build-plan, decimal-leading-zero);
  color: var(--ks-patina);
  font-family: var(--ks-mono);
  font-size: 0.82rem;
}

.ks-build-plan strong {
  color: var(--ks-champagne);
  font-weight: 600;
}

@keyframes ks-skeleton {
  0% { background-position: 100% 0; }
  100% { background-position: -100% 0; }
}

@media (max-width: 1180px) {
  .ks-nav {
    gap: 22px;
  }

  .ks-hero-grid,
  .ks-token-layout,
  .ks-proof-layout {
    grid-template-columns: 1fr;
  }

  .ks-hero-copy {
    padding-left: 0;
  }

  .ks-hero h1 {
    margin-top: 96px;
    font-size: 4.15rem;
  }

  .ks-hero-art {
    min-height: 360px;
  }

  .ks-foil-seam {
    right: 42%;
    height: 118%;
    top: -10%;
    transform: rotate(72deg);
  }

  .ks-action-grid,
  .ks-content-modules,
  .ks-utility-grid,
  .ks-accent-library {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .ks-card-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (max-width: 820px) {
  .ks-hero,
  .ks-section {
    padding-left: 22px;
    padding-right: 22px;
  }

  .ks-topbar {
    align-items: flex-start;
  }

  .ks-nav,
  .ks-nav-cta,
  .ks-nav-sample {
    display: none;
  }

  .ks-hero h1 {
    font-size: clamp(2rem, 8.2vw, 2.9rem);
    letter-spacing: 0.08em;
  }

  .ks-hero-line {
    font-size: 1.08rem;
  }

  .ks-hero-grid {
    align-items: start;
    min-height: 600px;
  }

  .ks-hero-art {
    inset: 318px -150px 0 0;
    background-position: right bottom;
    background-size: auto 560px;
    filter: saturate(1.08) contrast(1.04) brightness(0.92);
    mask-image:
      linear-gradient(90deg, transparent 0%, transparent 26%, black 58%, black 100%),
      linear-gradient(180deg, transparent 0%, black 18%, black 88%, transparent 100%);
  }

  .ks-circuit-field {
    top: 8%;
    right: -18%;
    width: 136vw;
    height: 68%;
    opacity: 0.42;
  }

  .ks-calibration,
  .ks-patina-dot {
    opacity: 0.36;
  }

  .ks-foil-seam {
    opacity: 0.12;
  }

  .ks-wordmark {
    font-size: 0.72rem;
    letter-spacing: 0.28em;
  }

  .ks-category-rail {
    grid-template-columns: 1fr;
    padding: 12px 0;
  }

  .ks-category-rail a {
    min-height: 62px;
    justify-content: flex-start;
    padding-left: 8px;
    border-right: 0;
    border-bottom: 1px solid var(--ks-rule-soft);
  }

  .ks-category-rail a:last-child {
    border-bottom: 0;
  }

  .ks-section {
    padding-top: 80px;
    padding-bottom: 80px;
  }

  .ks-section-head h2 {
    font-size: 2rem;
  }

  .ks-swatch-grid,
  .ks-action-grid,
  .ks-content-modules,
  .ks-utility-grid,
  .ks-accent-library,
  .ks-card-grid {
    grid-template-columns: 1fr;
  }

  .ks-header-sample {
    padding: 0 14px;
  }

  .ks-audit-row {
    grid-template-columns: 1fr;
  }

  .ks-mini-ui {
    width: 80%;
    margin-left: auto;
    margin-right: auto;
  }

  .ks-mini-ui-after {
    width: 84%;
  }

  .ks-comparison-divider {
    width: 108px;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
    transition-duration: 0.001ms !important;
  }
}