/**
 * 施工事例デザインシステム — .kg-case 名前空間（index.html 由来）
 * 北国工務店 — SWELL 子テーマ
 */

.kg-case {
  /* warm 和モダン palette — earth tones, washi cream, sumi */
  --washi: #f1ead9;
  --washi-2: #e8dec8;
  --washi-3: #ddd0b5;
  --paper: #f8f3e6;
  --sumi: #1a1612;
  --sumi-2: #2b2520;
  --sumi-3: #4a423a;
  --muted: #847866;
  --muted-2: #b3a78f;
  --line: rgba(26, 22, 18, 0.14);
  --line-2: rgba(26, 22, 18, 0.08);
  --copper: #a14a2a;
  --copper-deep: #7d3618;
  --moss: #56624a;
  --snow: #eef2f4;
  --gold: #b88a3e;
  --bg: var(--washi);
  --fg: var(--sumi);
  --accent: var(--copper);
  --serif: "Shippori Mincho B1", "Noto Serif JP", serif;
  --serif-en: "Cormorant Garamond", "Shippori Mincho B1", serif;
  --sans: "Noto Sans JP", system-ui, sans-serif;
  --mono: ui-monospace, "SF Mono", Menlo, monospace;

  box-sizing: border-box;
  background: var(--bg);
  color: var(--fg);
  font-family: var(--sans);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  font-feature-settings: "palt" 1;
  font-size: 15px;
  line-height: 1.75;
  letter-spacing: 0.02em;
}

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

.kg-case img {
  display: block;
  max-width: 100%;
}

.kg-case a {
  color: inherit;
  text-decoration: none;
}

.kg-case button {
  font-family: inherit;
  cursor: pointer;
  border: 0;
  background: none;
  color: inherit;
}

.kg-case .wrap {
  max-width: 1320px;
  margin: 0 auto;
  padding: 0 40px;
}

.kg-case .wrap-narrow {
  max-width: 980px;
  margin: 0 auto;
  padding: 0 40px;
}

.kg-case .serif {
  font-family: var(--serif);
}

.kg-case .en {
  font-family: var(--serif-en);
  font-style: italic;
  font-weight: 400;
  letter-spacing: 0.04em;
}

.kg-case .en-caps {
  font-family: var(--serif-en);
  font-weight: 400;
  letter-spacing: 0.32em;
  text-transform: uppercase;
}

.kg-case .vline {
  display: inline-block;
  width: 1px;
  height: 1em;
  background: currentColor;
  vertical-align: -0.15em;
  opacity: 0.3;
  margin: 0 0.85em;
}

.kg-case .eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  font-family: var(--serif-en);
  font-weight: 400;
  font-size: 11px;
  letter-spacing: 0.4em;
  text-transform: uppercase;
  color: var(--muted);
}

.kg-case .eyebrow::before {
  content: "";
  width: 32px;
  height: 1px;
  background: var(--copper);
  opacity: 0.7;
}

.kg-case .h-rule {
  height: 1px;
  background: var(--line);
  margin: 0;
}

/* breadcrumb */
.kg-case .crumb {
  padding: 22px 0 14px;
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--muted);
  font-family: var(--sans);
  font-weight: 500;
}

.kg-case .crumb a:hover {
  color: var(--sumi);
}

.kg-case .crumb .sep {
  margin: 0 12px;
  opacity: 0.5;
}

/* hero */
.kg-case .hero {
  padding: 0 0 80px;
}

.kg-case .hero-grid {
  display: grid;
  grid-template-columns: 1.05fr 1fr;
  gap: 56px;
  align-items: end;
}

.kg-case .hero-text {
  padding-bottom: 30px;
}

.kg-case .hero-no {
  display: flex;
  align-items: baseline;
  gap: 14px;
  color: var(--muted);
  font-family: var(--serif-en);
  font-weight: 300;
}

.kg-case .hero-no .num {
  font-size: 64px;
  line-height: 1;
  color: var(--copper);
  font-weight: 300;
}

.kg-case .hero-no .label {
  font-size: 11px;
  letter-spacing: 0.32em;
  text-transform: uppercase;
}

.kg-case .hero h1 {
  font-family: var(--serif);
  font-weight: 500;
  font-size: clamp(2.5rem, 5vw, 88px);
  line-height: 1.08;
  letter-spacing: 0.02em;
  margin: 18px 0 14px;
  color: var(--sumi);
}

.kg-case .hero-sub {
  font-family: var(--serif-en);
  font-style: italic;
  font-weight: 300;
  font-size: 22px;
  color: var(--copper);
  letter-spacing: 0.04em;
  margin-bottom: 32px;
}

.kg-case .hero-intro {
  font-family: var(--serif);
  font-size: 18px;
  line-height: 2.05;
  color: var(--sumi-3);
  letter-spacing: 0.06em;
  max-width: 560px;
  text-wrap: pretty;
  white-space: pre-line;
}

/* hero meta — prototype */
.kg-case .hero-meta {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, auto));
  gap: 24px 36px;
  margin-top: 34px;
  padding-top: 24px;
  border-top: 1px solid var(--line);
}

.kg-case .meta-cell .k {
  font-family: var(--serif-en);
  font-size: 9.5px;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 6px;
}

.kg-case .meta-cell .v {
  font-family: var(--serif);
  font-size: 17px;
  color: var(--sumi);
  font-weight: 500;
  line-height: 1.3;
}

.kg-case .meta-cell .v small {
  font-family: var(--sans);
  font-size: 11px;
  color: var(--muted);
  font-weight: 400;
  letter-spacing: 0.06em;
  display: block;
  margin-top: 2px;
}

.kg-case .hero-img {
  position: relative;
  aspect-ratio: 4/5;
  background: var(--washi-2);
  overflow: hidden;
}

.kg-case .hero-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.kg-case .hero-img .stamp {
  position: absolute;
  top: 24px;
  left: 24px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  background: rgba(26, 22, 18, 0.78);
  color: var(--washi);
  padding: 14px 18px;
  font-family: var(--serif);
  backdrop-filter: blur(8px);
}

.kg-case .hero-img .stamp .s1 {
  font-size: 10px;
  letter-spacing: 0.3em;
  color: var(--muted-2);
  font-family: var(--serif-en);
  text-transform: uppercase;
}

.kg-case .hero-img .stamp .s2 {
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 0.08em;
}

.kg-case .tagline-strip {
  padding: 60px 0 90px;
  text-align: center;
  border-top: 1px solid var(--line-2);
}

.kg-case .tagline-strip .quote {
  font-family: var(--serif);
  font-size: clamp(1.25rem, 3vw, 32px);
  line-height: 1.85;
  font-weight: 400;
  color: var(--sumi);
  letter-spacing: 0.08em;
  text-wrap: balance;
}

.kg-case .tagline-strip .quote .accent {
  color: var(--copper);
}

.kg-case .tagline-strip .signature {
  margin-top: 28px;
  font-family: var(--serif-en);
  font-style: italic;
  font-size: 15px;
  color: var(--muted);
  letter-spacing: 0.06em;
}

/* lead block */
.kg-case .case-lead-block {
  padding: 48px 0 36px;
  border-top: 1px solid var(--line-2);
}

.kg-case .case-lead-block blockquote {
  margin: 0;
  padding: 0;
  border: none;
  font-family: var(--serif);
  font-size: clamp(1rem, 2vw, 1.15rem);
  line-height: 2;
  color: var(--sumi-3);
  max-width: 920px;
}

/* meta */
.kg-case .case-meta-section {
  padding: 32px 0 64px;
}

.kg-case .case-meta-dl {
  display: grid;
  grid-template-columns: 140px 1fr;
  gap: 14px 28px;
  max-width: 920px;
  margin: 0;
  font-size: 14px;
}

.kg-case .case-meta-dl dt {
  margin: 0;
  font-size: 12px;
  color: var(--muted);
  font-weight: 500;
  letter-spacing: 0.1em;
  font-family: var(--sans);
}

.kg-case .case-meta-dl dd {
  margin: 0;
  font-family: var(--serif);
  font-weight: 500;
  color: var(--sumi);
  letter-spacing: 0.04em;
}

/* performance matrix — dark strip (prototype) */
.kg-case .perf-section {
  background: var(--sumi);
  color: var(--washi);
  padding: 100px 0;
}

.kg-case .perf-section .section-head h2 {
  color: var(--washi);
}

.kg-case .perf-section .section-head .right {
  color: #d6cdba;
}

.kg-case .perf-section .section-head .left .num {
  color: var(--muted-2);
}

.kg-case .perf-section .section-head h2 .en {
  color: var(--muted-2);
}

.kg-case .perf-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: rgba(255, 255, 255, 0.1);
}

.kg-case .perf-cell {
  background: var(--sumi);
  padding: 36px 30px;
  display: flex;
  flex-direction: column;
  gap: 14px;
  min-height: 280px;
}

.kg-case .perf-cell .icn {
  width: 40px;
  height: 40px;
  border: 1px solid rgba(255, 255, 255, 0.3);
  border-radius: 50%;
  display: grid;
  place-items: center;
  color: var(--copper);
}

.kg-case .perf-cell > .ph {
  font-family: var(--serif);
  font-size: 13px;
  letter-spacing: 0.18em;
  color: var(--muted-2);
}

.kg-case .perf-cell > .num {
  font-family: var(--serif-en);
  font-weight: 300;
  font-size: 54px;
  line-height: 1;
  color: var(--washi);
  font-style: italic;
}

.kg-case .perf-cell > .num small {
  font-family: var(--sans);
  font-size: 14px;
  font-weight: 400;
  color: var(--muted-2);
  font-style: normal;
  letter-spacing: 0.06em;
  margin-left: 6px;
}

.kg-case .perf-cell .ttl {
  font-family: var(--serif);
  font-size: 18px;
  font-weight: 500;
  letter-spacing: 0.12em;
  color: var(--washi);
  margin-top: auto;
}

.kg-case .perf-cell .desc {
  font-size: 12.5px;
  line-height: 1.85;
  color: #bbb09c;
  letter-spacing: 0.04em;
}

/* owner voice */
.kg-case .voice-section {
  padding: 120px 0;
}

.kg-case .voice-grid {
  display: grid;
  grid-template-columns: 1fr 1.3fr;
  gap: 72px;
  align-items: center;
}

.kg-case .voice-photo {
  aspect-ratio: 4/5;
  background: var(--washi-2);
  overflow: hidden;
  position: relative;
}

.kg-case .voice-photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.kg-case .voice-photo .lbl {
  position: absolute;
  bottom: 24px;
  left: 24px;
  background: var(--washi);
  padding: 14px 18px;
  font-family: var(--serif);
  font-size: 13px;
  letter-spacing: 0.12em;
}

.kg-case .voice-photo .lbl small {
  display: block;
  font-family: var(--serif-en);
  font-style: italic;
  font-size: 10px;
  letter-spacing: 0.2em;
  color: var(--muted);
  text-transform: uppercase;
  margin-bottom: 3px;
}

.kg-case .voice-body .qmark {
  display: block;
  font-family: var(--serif);
  font-size: 96px;
  line-height: 0.6;
  color: var(--copper);
  opacity: 0.4;
}

.kg-case .voice-body h3 {
  font-family: var(--serif);
  font-size: 34px;
  font-weight: 500;
  line-height: 1.6;
  letter-spacing: 0.05em;
  margin: 14px 0 28px;
  text-wrap: balance;
}

.kg-case .voice-body p {
  font-size: 15px;
  line-height: 2.1;
  color: var(--sumi-3);
  text-wrap: pretty;
}

.kg-case .voice-body p + p {
  margin-top: 1em;
}

.kg-case .voice-meta {
  margin-top: 36px;
  padding-top: 26px;
  border-top: 1px solid var(--line);
  font-size: 12px;
  color: var(--muted);
  letter-spacing: 0.12em;
}

.kg-case .voice-meta b {
  display: inline-block;
  font-family: var(--serif);
  font-size: 14px;
  color: var(--sumi);
  font-weight: 500;
  letter-spacing: 0.06em;
}

/* architect comment */
.kg-case .arch-section {
  padding: 80px 0;
  background: var(--paper);
  border-top: 1px solid var(--line-2);
}

.kg-case .arch-grid {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 64px;
  align-items: start;
}

.kg-case .arch-photo {
  aspect-ratio: 1/1;
  background: var(--washi-2);
  overflow: hidden;
  width: 280px;
  max-width: 100%;
}

.kg-case .arch-photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: grayscale(0.15);
}

.kg-case .arch-body .role {
  font-family: var(--serif-en);
  font-size: 11px;
  letter-spacing: 0.32em;
  color: var(--copper);
  text-transform: uppercase;
}

.kg-case .arch-body h3 {
  font-family: var(--serif);
  font-size: 22px;
  font-weight: 500;
  margin: 8px 0 22px;
  letter-spacing: 0.06em;
}

.kg-case .arch-body h3 .name {
  display: inline-block;
  font-size: 30px;
  margin-right: 14px;
}

.kg-case .arch-body p {
  font-size: 14.5px;
  line-height: 2.05;
  color: var(--sumi-3);
  text-wrap: pretty;
  max-width: 720px;
}

.kg-case .arch-body p + p {
  margin-top: 1.1em;
}

.kg-case .related-section {
  padding: 100px 0;
  border-top: 1px solid var(--line-2);
}

/* overview / story + tech */
.kg-case .section {
  padding: 90px 0;
}

.kg-case .section-head {
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: 48px;
  margin-bottom: 54px;
  align-items: end;
}

.kg-case .section-head .left .num {
  font-family: var(--serif-en);
  font-weight: 300;
  font-size: 13px;
  letter-spacing: 0.32em;
  color: var(--muted);
  text-transform: uppercase;
  display: block;
  margin-bottom: 14px;
}

.kg-case .section-head .left .num em {
  font-style: normal;
  color: var(--copper);
  margin-right: 10px;
  font-size: 1.2em;
}

.kg-case .section-head h2 {
  font-family: var(--serif);
  font-size: clamp(1.75rem, 3vw, 44px);
  font-weight: 500;
  letter-spacing: 0.05em;
  line-height: 1.2;
  color: var(--sumi);
}

.kg-case .section-head h2 .en {
  display: block;
  font-family: var(--serif-en);
  font-style: italic;
  font-size: 14px;
  letter-spacing: 0.32em;
  color: var(--muted);
  text-transform: uppercase;
  margin-top: 10px;
  font-weight: 300;
}

.kg-case .overview-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 64px;
  align-items: start;
}

.kg-case .overview-body {
  font-size: 15.5px;
  line-height: 2.05;
  color: var(--sumi-3);
  text-wrap: pretty;
}

.kg-case .overview-body p + p {
  margin-top: 1.4em;
}

.kg-case .spec-card {
  background: var(--paper);
  padding: 36px 36px 30px;
  border-top: 2px solid var(--sumi);
  position: relative;
}

.kg-case .spec-card .tag {
  position: absolute;
  top: -13px;
  left: 36px;
  background: var(--copper);
  color: #fff;
  padding: 4px 12px;
  font-family: var(--serif-en);
  font-size: 10px;
  letter-spacing: 0.32em;
  text-transform: uppercase;
}

.kg-case .spec-card h3 {
  font-family: var(--serif);
  font-size: 18px;
  font-weight: 600;
  letter-spacing: 0.1em;
  margin-bottom: 22px;
  color: var(--sumi);
}

.kg-case .spec-row {
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: 14px;
  padding: 14px 0;
  border-bottom: 1px dashed var(--line);
}

.kg-case .spec-row:last-child {
  border-bottom: 0;
}

.kg-case .spec-row dt {
  font-size: 12px;
  color: var(--muted);
  font-weight: 500;
  letter-spacing: 0.1em;
  padding-top: 2px;
  font-family: var(--sans);
}

.kg-case .spec-row dd {
  font-family: var(--serif);
  font-size: 15px;
  font-weight: 500;
  color: var(--sumi);
  letter-spacing: 0.04em;
  line-height: 1.5;
  margin: 0;
}

.kg-case .spec-card > dl > dt {
  font-size: 12px;
  color: var(--muted);
  font-weight: 500;
  letter-spacing: 0.1em;
  padding-top: 2px;
  font-family: var(--sans);
  padding: 14px 0;
  border-bottom: 1px dashed var(--line);
}

.kg-case .spec-card > dl > dd {
  font-family: var(--serif);
  font-size: 15px;
  font-weight: 500;
  color: var(--sumi);
  letter-spacing: 0.04em;
  line-height: 1.5;
  margin: 0;
  padding: 14px 0;
  border-bottom: 1px dashed var(--line);
}

.kg-case .spec-card > dl {
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: 0 14px;
}

.kg-case .spec-card > dl > dt:last-of-type,
.kg-case .spec-card > dl > dd:last-of-type {
  border-bottom: 0;
}

/* gallery */
.kg-case .gallery-section {
  background: var(--paper);
  padding: 100px 0;
}

.kg-case .gal {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 14px;
}

.kg-case .gal figure {
  position: relative;
  overflow: hidden;
  background: var(--washi-2);
  cursor: zoom-in;
  transition: 0.45s cubic-bezier(0.2, 0.7, 0.2, 1);
}

.kg-case .gal figure img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.9s cubic-bezier(0.2, 0.7, 0.2, 1);
}

.kg-case .gal figure:hover img {
  transform: scale(1.04);
}

.kg-case .gal figure::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 60%, rgba(26, 22, 18, 0.55));
  opacity: 0;
  transition: 0.3s;
}

.kg-case .gal figure:hover::after {
  opacity: 1;
}

.kg-case .gal figcaption {
  position: absolute;
  left: 18px;
  bottom: 14px;
  right: 18px;
  color: var(--washi);
  font-family: var(--serif);
  font-size: 13px;
  letter-spacing: 0.1em;
  line-height: 1.5;
  transform: translateY(6px);
  opacity: 0;
  transition: 0.35s;
  z-index: 2;
}

.kg-case .gal figcaption .n {
  font-family: var(--serif-en);
  font-style: italic;
  font-size: 11px;
  color: var(--muted-2);
  display: block;
  margin-bottom: 3px;
}

.kg-case .gal figure:hover figcaption {
  transform: translateY(0);
  opacity: 1;
}

.kg-case .gal .span-6 {
  grid-column: span 6;
}

.kg-case .gal .span-7 {
  grid-column: span 7;
}

.kg-case .gal .span-5 {
  grid-column: span 5;
}

.kg-case .gal .span-4 {
  grid-column: span 4;
}

.kg-case .gal .span-3 {
  grid-column: span 3;
}

.kg-case .gal .ar-43 {
  aspect-ratio: 4/3;
}

.kg-case .gal .ar-32 {
  aspect-ratio: 3/2;
}

.kg-case .gal .ar-23 {
  aspect-ratio: 2/3;
}

/* lightbox */
.kg-case .lb {
  position: fixed;
  inset: 0;
  z-index: 200;
  background: rgba(10, 8, 6, 0.94);
  display: flex;
  flex-direction: column;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s;
}

.kg-case .lb.open {
  opacity: 1;
  pointer-events: auto;
}

.kg-case .lb-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 22px 32px;
  color: var(--washi);
  font-family: var(--serif-en);
  font-size: 11px;
  letter-spacing: 0.3em;
  text-transform: uppercase;
}

.kg-case .lb-top .x {
  color: var(--washi);
  font-size: 22px;
  width: 40px;
  height: 40px;
  display: grid;
  place-items: center;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 50%;
}

.kg-case .lb-stage {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 60px;
  position: relative;
  min-height: 0;
}

.kg-case .lb-stage img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.5);
}

.kg-case .lb-cap {
  padding: 18px 32px 24px;
  color: var(--washi);
  text-align: center;
  font-family: var(--serif);
  font-size: 14px;
  letter-spacing: 0.1em;
}

.kg-case .lb-cap .sm {
  display: block;
  font-family: var(--serif-en);
  font-style: italic;
  font-size: 11px;
  color: var(--muted-2);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  margin-bottom: 6px;
}

.kg-case .lb-arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 54px;
  height: 54px;
  border: 1px solid rgba(255, 255, 255, 0.25);
  border-radius: 50%;
  display: grid;
  place-items: center;
  color: var(--washi);
  font-size: 18px;
  background: rgba(0, 0, 0, 0.2);
}

.kg-case .lb-arrow.prev {
  left: 24px;
}

.kg-case .lb-arrow.next {
  right: 24px;
}

/* floor */
.kg-case .floor-single {
  padding: 90px 0;
}

.kg-case .floor-card {
  background: var(--paper);
  border: 1px solid var(--line);
  padding: 32px;
  max-width: 900px;
  margin: 0 auto;
}

.kg-case .floor-card .plan img {
  width: 100%;
  height: auto;
  border: 1px solid var(--line);
  background: #fffaf0;
}

/* CTA */
.kg-case .cta-section {
  padding: 120px 0;
  text-align: center;
}

.kg-case .cta-section .eyebrow {
  justify-content: center;
}

.kg-case .cta-section h2 {
  font-family: var(--serif);
  font-size: clamp(1.75rem, 4vw, 54px);
  font-weight: 500;
  letter-spacing: 0.06em;
  line-height: 1.4;
  margin: 22px 0 14px;
  text-wrap: balance;
}

.kg-case .cta-section .lead {
  font-size: 15px;
  color: var(--sumi-3);
  line-height: 2;
  max-width: 560px;
  margin: 0 auto 40px;
  text-wrap: pretty;
}

.kg-case .cta-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  max-width: 980px;
  margin: 0 auto;
}

.kg-case .cta-card {
  background: var(--paper);
  padding: 44px 32px;
  text-align: left;
  border: 1px solid var(--line);
  transition: 0.3s;
  display: flex;
  flex-direction: column;
  gap: 14px;
  position: relative;
}

.kg-case .cta-card:hover {
  border-color: var(--copper);
  transform: translateY(-3px);
  box-shadow: 0 24px 48px -24px rgba(26, 22, 18, 0.18);
}

.kg-case .cta-card .num {
  font-family: var(--serif-en);
  font-size: 11px;
  color: var(--muted);
  letter-spacing: 0.32em;
  text-transform: uppercase;
}

.kg-case .cta-card h4 {
  font-family: var(--serif);
  font-size: 24px;
  font-weight: 600;
  letter-spacing: 0.06em;
  line-height: 1.4;
}

.kg-case .cta-card p {
  font-size: 13px;
  color: var(--sumi-3);
  line-height: 1.85;
}

.kg-case .cta-card .arrow {
  margin-top: auto;
  font-family: var(--serif-en);
  font-style: italic;
  color: var(--copper);
  font-size: 14px;
  letter-spacing: 0.1em;
  display: flex;
  align-items: center;
  gap: 10px;
}

/* related + archive cards */
.kg-case .related-grid,
.kg-case .archive-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  margin-top: 50px;
}

.kg-case .work-card {
  display: flex;
  flex-direction: column;
  gap: 14px;
  cursor: pointer;
  text-decoration: none;
  color: inherit;
}

.kg-case .work-card .cover {
  aspect-ratio: 4/5;
  background: var(--washi-2);
  overflow: hidden;
}

.kg-case .work-card .cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.8s cubic-bezier(0.2, 0.7, 0.2, 1);
}

.kg-case .work-card:hover .cover img {
  transform: scale(1.05);
}

.kg-case .work-card .meta {
  display: flex;
  gap: 10px;
  align-items: center;
  font-family: var(--serif-en);
  font-size: 10px;
  letter-spacing: 0.3em;
  color: var(--muted);
  text-transform: uppercase;
  margin-top: 4px;
}

.kg-case .work-card .meta .dot {
  width: 3px;
  height: 3px;
  background: var(--copper);
  border-radius: 50%;
}

.kg-case .work-card h4 {
  font-family: var(--serif);
  font-size: 22px;
  font-weight: 500;
  letter-spacing: 0.06em;
  line-height: 1.5;
  color: var(--sumi);
}

.kg-case .work-card .loc {
  font-size: 12px;
  color: var(--muted);
  letter-spacing: 0.1em;
}

/* pagination prev/next */
.kg-case .pagi {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  background: var(--line-2);
  margin-top: 80px;
}

.kg-case .pagi a {
  padding: 36px 40px;
  background: var(--washi);
  display: flex;
  flex-direction: column;
  gap: 8px;
  transition: 0.3s;
}

.kg-case .pagi a:hover {
  background: var(--paper);
}

.kg-case .pagi a.next {
  align-items: flex-end;
  text-align: right;
}

.kg-case .pagi .lbl {
  font-family: var(--serif-en);
  font-size: 10px;
  letter-spacing: 0.3em;
  color: var(--muted);
  text-transform: uppercase;
  display: flex;
  align-items: center;
  gap: 10px;
}

.kg-case .pagi .ttl {
  font-family: var(--serif);
  font-size: 22px;
  font-weight: 500;
  letter-spacing: 0.06em;
  color: var(--sumi);
}

.kg-case .pagi .loc {
  font-size: 11px;
  color: var(--muted);
  letter-spacing: 0.16em;
}

/* archive filters */
.kg-case-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 16px;
  align-items: flex-end;
  margin-bottom: 2rem;
  padding: 1.5rem;
  background: var(--paper);
  border: 1px solid var(--line-2);
}

.kg-case-filters label {
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--muted);
  font-weight: 600;
}

.kg-case-filters select {
  min-width: 160px;
  padding: 10px 12px;
  font-family: var(--sans);
  font-size: 13px;
  border: 1px solid var(--line);
  background: #fff;
  color: var(--sumi);
}

.kg-case-filters button,
.kg-case-filters .kg-btn {
  padding: 10px 20px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.1em;
  border: 1px solid var(--sumi);
  background: var(--sumi);
  color: var(--washi);
  cursor: pointer;
  text-decoration: none;
  display: inline-block;
}

.kg-case-filters .kg-btn--ghost {
  background: transparent;
  color: var(--sumi);
}

@media (max-width: 1100px) {
  .kg-case .hero-grid,
  .kg-case .overview-grid,
  .kg-case .section-head {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .kg-case .gal {
    grid-template-columns: repeat(6, 1fr);
  }

  .kg-case .cta-row,
  .kg-case .related-grid,
  .kg-case .archive-grid {
    grid-template-columns: 1fr 1fr;
  }

  .kg-case .pagi {
    grid-template-columns: 1fr;
  }

  .kg-case .hero-meta {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .kg-case .perf-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 640px) {
  .kg-case .wrap,
  .kg-case .wrap-narrow {
    padding: 0 20px;
  }

  .kg-case .cta-row,
  .kg-case .related-grid,
  .kg-case .archive-grid {
    grid-template-columns: 1fr;
  }

  .kg-case .case-meta-dl {
    grid-template-columns: 1fr;
  }

  .kg-case .spec-row {
    grid-template-columns: 1fr;
  }

  .kg-case .hero-meta {
    grid-template-columns: 1fr;
  }

  .kg-case .perf-grid {
    grid-template-columns: 1fr;
  }

  .kg-case .perf-cell {
    min-height: 0;
  }

  .kg-case .voice-grid,
  .kg-case .arch-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .kg-case .voice-body h3 {
    font-size: clamp(1.25rem, 5vw, 28px);
  }
}

/* ── 方針 B（ハイブリッド段階）: トップの [kitakuni_recent_cases] と一覧の視覚統一 ── */
.kg-case.kitakuni-recent-cases-embed {
  background: transparent !important;
}

.kg-case.kitakuni-recent-cases-embed .archive-grid {
  margin-bottom: 0;
}

/* 方針 B: 親テーマ .post_content の見出し強制（style.css）がストーリー本文に乗らないよう抑止 */
.single-construction_case .kg-case .overview-body.post_content h1,
.single-construction_case .kg-case .overview-body.post_content h2,
.single-construction_case .kg-case .overview-body.post_content h3 {
  font-family: var(--sans);
  color: var(--sumi-3);
}

.single-construction_case .kg-case .overview-body.post_content h2 {
  margin: 1rem 0 0.6rem !important;
  font-size: 1.15rem;
  font-weight: 600;
}

.single-construction_case .kg-case .overview-body.post_content h3 {
  margin: 1rem 0 0.45rem !important;
  font-size: 1rem;
  font-weight: 600;
}

.single-construction_case .kg-case .overview-body.post_content > *:first-child {
  margin-top: 0 !important;
}