/* ============================================
   MISORA Design System  Ver.1
   Structure adapted from Nakao's design-system template,
   re-tokenized to the MISORA brand (cool pale-blue / white,
   MISORA Blue accent, Cormorant Garamond x Inter x Noto Sans JP).
   ============================================ */

/* ---- Fonts ---- */

/* ============================================
   1. Design tokens (CSS variables)
   ============================================ */
:root {
  /* ---- Color: brand ---- */
  --color-misora-blue: #6c9bd2; /* primary brand accent (10%) */
  --color-ink: #1e1e1e; /* Soft Black (brand) — text & strong actions */
  --color-ink-light: #3a3a3a;

  /* role mapping (keeps component CSS structure intact) */
  --color-primary: var(--color-ink);
  --color-primary-light: var(--color-ink-light);
  --color-secondary: var(--color-misora-blue);
  --color-link: #3e72ab;
  --color-link-hover: #6c9bd2;
  --color-accent: #6c9bd2;

  /* ---- Background ---- */
  --bg-warm: #faf8f5; /* warm white, page base (60%) */
  --bg-white: #ffffff;
  --bg-blue-pale: #eaf2fa; /* Mist Blue (brand) */
  --bg-blue-soft: #d8e5f3;
  --bg-placeholder: #dce8f4;

  /* ---- Mesh / aurora gradient palette (soft background fields) ---- */
  --mesh-sky: #96bce6;
  --mesh-lavender: #c4b6e6;
  --mesh-cream: #f7e2bc;
  --mesh-mint: #c1e4d5;

  /* ---- Text ---- */
  --text-primary: #1e1e1e; /* Soft Black */
  --text-secondary: #4a4744; /* warm dark gray */
  --text-muted: #9a9690; /* Middle Gray (brand) */
  --text-soft: #6f6b66; /* warm mid gray */
  --text-on-dark: #fafbfc;

  /* ---- Border ---- */
  --border-subtle: #e8e4dd;
  --border-divider: #e3e0da;
  --border-strong: #c8c4bd;

  /* ---- Status ---- */
  --color-success: #2c7a5b;
  --color-warning: #b07a1e;
  --color-error: #c0493e;
  --color-info: #3e72ab;

  /* ---- Surface ---- */
  --surface-base: var(--bg-warm);
  --surface-raised: var(--bg-white);
  --surface-accent: var(--bg-blue-pale);
  --surface-dark: var(--color-ink);

  /* ---- Semantic text ---- */
  --text-heading: var(--text-primary);
  --text-body: var(--text-secondary);
  --text-inverse: var(--text-on-dark);

  /* ---- Placeholder gradient (pale blue, low contrast) ---- */
  --grad-media: linear-gradient(135deg, #dce8f4 0%, #f2f6fb 60%, #e4eef7 100%);
  --grad-media-soft: linear-gradient(135deg, #e7eff8 0%, #f6f9fc 100%);

  /* ---- Font families ---- */
  --font-display:
    "Cormorant Garamond", "Times New Roman", serif; /* big EN words, numerals */
  --font-label:
    "Inter", "Noto Sans JP", sans-serif; /* overlines, EN labels, meta */
  --font-heading:
    "Noto Serif JP", "Yu Mincho", "Hiragino Mincho ProN", serif; /* JP headings (mincho) */
  --font-body: "Noto Sans JP", "Inter", "Hiragino Sans", sans-serif; /* body */
  --font-mincho:
    "Noto Serif JP", "Yu Mincho", "Hiragino Mincho ProN", serif; /* JP serif accent */

  /* ---- Font size ---- */
  --fs-xs: 11px;
  --fs-sm: 12px; /* Caption / Note */
  --fs-body: 15px; /* Body / Text (Type Hierarchy) */
  --fs-base: 16px; /* UI / non-body 16px */
  --fs-md: 16px;
  --fs-lg: 18px; /* H3 / Sub Headline */
  --fs-xl: 22px;
  --fs-2xl: 28px; /* H2 / Headline */
  --fs-hero: 44px; /* H1 / Display */
  --fs-display: 64px;

  /* ---- Line height ---- */
  --lh-tight: 1.3;
  --lh-base: 1.8; /* body 27/15 */
  --lh-heading: 1.5;

  /* ---- Spacing ---- */
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 20px;
  --space-6: 24px;
  --space-8: 32px;
  --space-10: 40px;
  --space-12: 48px;
  --space-16: 64px;
  --space-20: 80px;

  /* ---- Radius (soft, refined) ---- */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 14px;
  --radius-xl: 20px;
  --radius-pill: 999px;

  /* ---- Layout ---- */
  --container-width: 1280px;
  --content-width: 1140px;
  --content-max: 1040px;

  /* ---- Motion ---- */
  --duration-fast: 0.2s;
  --duration-base: 0.35s;
  --ease-standard: cubic-bezier(0.22, 0.61, 0.36, 1);

  /* ---- Breakpoints (reference) ---- */
  --bp-sm: 480px;
  --bp-md: 768px;
  --bp-lg: 1024px;
  --bp-xl: 1280px;
}

/* ============================================
   2. Reset / base
   ============================================ */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: var(--font-body);
  font-size: var(--fs-body);
  font-weight: 400;
  line-height: var(--lh-base);
  color: var(--text-primary);
  /* TEMP: body background removed for checking section haze
  background:
    radial-gradient(
      1300px 760px at 82% -6%,
      rgba(108, 155, 210, 0.22) 0%,
      rgba(108, 155, 210, 0) 58%
    ),
    linear-gradient(180deg, #edf3fa 0%, rgba(237, 243, 250, 0) 880px),
    var(--bg-warm);
  */
  background: #ffffff;
  background-repeat: no-repeat;
  -webkit-font-smoothing: antialiased;
  letter-spacing: 0.02em;
}

/* clip the slight horizontal overflow from full-bleed (100vw) sections.
   IMPORTANT: this lives on a wrapper that excludes <header>, because an
   ancestor with overflow != visible disables backdrop-filter (frosted glass)
   on the sticky header. overflow-x: clip keeps overflow-y visible (no scroll
   container), so document scroll + sticky header still work. */
.page-clip {
  overflow-x: clip;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

/* ============================================
   3. Typography
   ============================================ */
.ds-h1,
h1 {
  font-family: var(--font-heading);
  font-weight: 500;
  font-size: var(--fs-hero);
  line-height: var(--lh-heading);
  letter-spacing: 0.04em;
  color: var(--text-primary);
}

.ds-h2,
h2 {
  font-family: var(--font-heading);
  font-weight: 500;
  font-size: var(--fs-2xl);
  line-height: var(--lh-heading);
  letter-spacing: 0.04em;
  color: var(--text-primary);
}

.ds-h3,
h3 {
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: var(--fs-xl);
  line-height: var(--lh-heading);
  letter-spacing: 0.03em;
  color: var(--text-primary);
}

.ds-h4,
h4 {
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: var(--fs-md);
  line-height: var(--lh-heading);
  letter-spacing: 0.03em;
  color: var(--text-primary);
}

.ds-body {
  font-size: var(--fs-base);
  line-height: var(--lh-base);
  color: var(--text-primary);
}

.ds-caption {
  font-size: var(--fs-sm);
  line-height: 1.7;
  color: var(--text-muted);
}

.ds-label-en {
  font-family: var(--font-label);
  font-weight: 500;
  font-size: var(--fs-sm);
  letter-spacing: 0.12em;
  color: var(--color-link);
  text-transform: uppercase;
}

.ds-display {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: var(--fs-display);
  line-height: 1;
  letter-spacing: 0.04em;
  color: var(--color-ink);
}

/* ============================================
   4. Links
   ============================================ */
a,
.ds-link {
  color: var(--color-link);
  text-decoration: none;
  transition:
    color var(--duration-fast) var(--ease-standard),
    opacity var(--duration-fast) var(--ease-standard);
}

a:hover,
.ds-link:hover {
  color: var(--color-link-hover);
}

a:focus-visible,
.ds-link:focus-visible,
.ds-btn:focus-visible,
.ds-input:focus-visible,
.ds-textarea:focus-visible,
.ds-select:focus-visible,
.ds-check-input:focus-visible + .ds-check-label {
  outline: 2px solid var(--color-accent);
  outline-offset: 3px;
}

.ds-inline-link-end {
  position: relative;
}

.ds-inline-link-end .ds-inline-icon {
  transition: transform var(--duration-fast) var(--ease-standard);
}

.ds-inline-link-end:hover .ds-inline-icon {
  transform: translateX(4px);
}

/* ============================================
   5. Buttons
   ============================================ */
.ds-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: 14px var(--space-6);
  font-family: var(--font-body);
  font-size: var(--fs-sm);
  font-weight: 500;
  letter-spacing: 0.08em;
  text-align: center;
  text-decoration: none;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  cursor: pointer;
  transition:
    color var(--duration-fast) var(--ease-standard),
    background-color var(--duration-fast) var(--ease-standard),
    border-color var(--duration-fast) var(--ease-standard);
}

.ds-btn-icon {
  width: 16px;
  height: 16px;
  flex: 0 0 auto;
  stroke-width: 1.6;
}

.ds-inline-icon {
  width: 18px;
  height: 18px;
  flex: 0 0 auto;
  stroke-width: 1.6;
}

.ds-inline-icon-sm {
  width: 15px;
  height: 15px;
  stroke-width: 1.6;
}

.ds-inline-link,
.ds-inline-link-end {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--fs-sm);
  letter-spacing: 0.06em;
  color: var(--color-link);
}

.ds-btn-primary {
  background-color: var(--color-ink);
  color: var(--text-on-dark);
  border-color: var(--color-ink);
}
.ds-btn-primary:hover {
  background-color: var(--color-ink-light);
  color: var(--text-on-dark);
}

.ds-btn-outline {
  position: relative;
  overflow: hidden;
  background-color: transparent;
  color: var(--color-ink);
  border-color: var(--border-strong);
}
/* ink fill sweeps in from the left on hover */
.ds-btn-outline::before {
  content: "";
  position: absolute;
  inset: 0;
  background-color: var(--color-ink);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform 0.4s var(--ease-standard);
}
.ds-btn-outline > * {
  position: relative;
  z-index: 1;
}
.ds-btn-outline:hover {
  color: var(--text-on-dark);
  border-color: var(--color-ink);
}
.ds-btn-outline:hover::before {
  transform: scaleX(1);
}

.ds-btn-secondary {
  background-color: var(--bg-blue-pale);
  color: var(--color-link);
  border-color: var(--bg-blue-soft);
}
.ds-btn-secondary:hover {
  background-color: var(--bg-blue-soft);
  color: var(--color-ink);
}

.ds-btn[aria-disabled="true"],
.ds-btn:disabled,
.ds-btn.is-disabled {
  opacity: 0.4;
  cursor: not-allowed;
  pointer-events: none;
}

.ds-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: 5px 12px;
  border-radius: var(--radius-pill);
  background-color: var(--bg-blue-pale);
  color: var(--color-link);
  font-size: var(--fs-xs);
  font-weight: 500;
  letter-spacing: 0.1em;
}

.ds-badge-status {
  background-color: rgba(44, 122, 91, 0.12);
  color: var(--color-success);
}

.ds-heading-sm {
  font-family: var(--font-heading);
  font-size: var(--fs-md);
  font-weight: 600;
  letter-spacing: 0.04em;
  margin-bottom: var(--space-4);
  color: var(--text-heading);
}

.ds-heading-sm-spaced {
  margin-top: var(--space-8);
}

.ds-block-spaced {
  margin-bottom: var(--space-8);
}

/* ============================================
   6. Cards & components
   ============================================ */
.ds-card {
  background-color: var(--bg-white);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
}

.ds-card-title {
  margin-bottom: var(--space-2);
}

.ds-card-copy {
  color: var(--text-body);
  font-size: 13px;
  line-height: 1.8;
}

.ds-card-media {
  aspect-ratio: 3 / 2;
  background: var(--grad-media);
  border-radius: 0;
  margin-bottom: var(--space-4);
}

.ds-card-copy-spaced {
  margin-bottom: var(--space-4);
}

.ds-note {
  margin-top: var(--space-4);
  font-size: var(--fs-sm);
  color: var(--text-muted);
}

.ds-copy-compact {
  color: var(--text-body);
  font-size: 13px;
  line-height: 1.9;
}

.ds-gap-xs {
  margin-bottom: var(--space-2);
}

.ds-card-demo-plain {
  padding-top: var(--space-2);
}

.ds-card-shell {
  margin-bottom: var(--space-6);
}

/* ---- Hero panel ---- */
.ds-hero-panel {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(420px, 1.15fr);
  gap: var(--space-10);
  padding: var(--space-12) 0;
  border-top: 1px solid var(--border-divider);
  border-bottom: 1px solid var(--border-divider);
}

.ds-hero-copy {
  display: grid;
  align-content: center;
  gap: var(--space-6);
}

.ds-hero-intro {
  font-family: var(--font-mincho);
  font-weight: 500;
  font-size: clamp(28px, 3.6vw, 46px);
  line-height: 1.7;
  letter-spacing: 0.06em;
  color: var(--text-heading);
}

.ds-hero-intro .em {
  color: var(--color-link);
}

.ds-hero-support {
  max-width: 38ch;
  color: var(--text-body);
  line-height: 1.95;
}

.ds-hero-media {
  min-height: 520px;
  border-radius: var(--radius-lg);
  background: var(--grad-media);
  position: relative;
  overflow: hidden;
}

.ds-hero-media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(
    60% 50% at 30% 24%,
    rgba(255, 255, 255, 0.85) 0%,
    rgba(255, 255, 255, 0) 70%
  );
}

/* ---- Service grid ---- */
.ds-service-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--space-8);
}

.ds-service-card {
  padding: var(--space-5) 0 0;
  border: none;
  border-top: 1px solid var(--border-divider);
  background: transparent;
}

.ds-service-media {
  aspect-ratio: 4 / 3;
  border-radius: var(--radius-md);
  margin-bottom: var(--space-5);
  background: var(--grad-media);
}

.ds-service-title {
  margin-bottom: var(--space-3);
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 21px;
  letter-spacing: 0.03em;
  color: var(--text-heading);
}

.ds-service-lead {
  margin-bottom: var(--space-4);
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 26px;
  line-height: 1.5;
  color: var(--color-link);
}

.ds-service-copy {
  margin-bottom: var(--space-5);
  color: var(--text-body);
  line-height: 1.9;
}

/* ---- Service: differentiators (why) + icon menu cards (ported from v06.1) ---- */
.ds-svc-why {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-12);
  margin-bottom: var(--space-16);
}

.ds-why-card {
  position: relative;
  padding-top: var(--space-8);
}

.ds-why-card__num {
  position: absolute;
  top: 0;
  left: 0;
  font-family: var(--font-display);
  font-style: italic;
  font-weight: 400;
  font-size: 22px;
  letter-spacing: 0.05em;
  color: var(--color-misora-blue);
}

.ds-why-card__num::before {
  content: "";
  position: absolute;
  top: 14px;
  left: 28px;
  width: 40px;
  height: 1px;
  background: var(--color-misora-blue);
  opacity: 0.4;
}

.ds-why-card__title {
  font-family: var(--font-mincho);
  font-size: 20px;
  font-weight: 500;
  line-height: 1.7;
  letter-spacing: 0.02em;
  color: var(--text-primary);
  margin-bottom: var(--space-5);
  padding-top: var(--space-6);
}

.ds-why-card__body {
  font-size: 13.5px;
  line-height: 2;
  color: var(--text-secondary);
}

.ds-svc-menu-label {
  font-family: var(--font-label);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--color-link);
  margin-bottom: var(--space-8);
  padding-left: var(--space-4);
  border-left: 1px solid var(--color-misora-blue);
}

.ds-svc-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: clamp(20px, 2vw, 28px);
}

.ds-svc-card {
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
  padding: 36px 32px 32px;
  background: var(--bg-white);
  border: 1px solid var(--border-subtle);
  transition:
    border-color 0.5s var(--ease-standard),
    transform 0.5s var(--ease-standard),
    box-shadow 0.5s var(--ease-standard);
}

.ds-svc-card::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: radial-gradient(
    ellipse 90% 60% at 70% -10%,
    rgba(108, 155, 210, 0.08) 0%,
    rgba(108, 155, 210, 0) 60%
  );
  opacity: 0;
  transition: opacity 0.6s var(--ease-standard);
}

.ds-svc-card > * {
  position: relative;
}

.ds-svc-card:hover {
  border-color: var(--color-misora-blue);
  transform: translateY(-4px);
  box-shadow: 0 18px 40px rgba(40, 60, 100, 0.06);
}

.ds-svc-card:hover::before {
  opacity: 1;
}

.ds-svc-card__icon {
  width: 64px;
  height: 64px;
  color: var(--color-misora-blue);
  transition: transform 0.6s var(--ease-standard);
}

.ds-svc-card__icon svg {
  width: 100%;
  height: 100%;
  display: block;
}

.ds-svc-card:hover .ds-svc-card__icon {
  transform: scale(1.05);
}

.ds-svc-card__head {
  display: flex;
  align-items: baseline;
  gap: var(--space-3);
  padding-bottom: var(--space-3);
  border-bottom: 1px solid var(--border-divider);
}

.ds-svc-card__num {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 18px;
  letter-spacing: 0.06em;
  color: var(--color-misora-blue);
}

.ds-svc-card__tag {
  font-family: var(--font-label);
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text-soft);
}

.ds-svc-card__title {
  font-family: var(--font-mincho);
  font-size: var(--fs-lg); /* H3 / Sub Headline = 18px */
  font-weight: 500;
  line-height: 1.55;
  letter-spacing: 0.04em;
  color: var(--text-primary);
}

.ds-svc-card__body {
  flex: 1;
  font-size: var(--fs-body); /* Body / Text = 15px */
  line-height: var(--lh-base);
  color: var(--text-secondary);
}

.ds-svc-card__more {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-label);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--text-soft);
  transition:
    color 0.4s var(--ease-standard),
    gap 0.4s var(--ease-standard);
}

.ds-svc-card:hover .ds-svc-card__more {
  color: var(--color-link);
  gap: 16px;
}

/* CTA-style card (6th cell) */
.ds-svc-card--cta {
  background: linear-gradient(155deg, var(--bg-warm) 0%, var(--bg-blue-pale) 100%);
  border: 1px dashed var(--color-misora-blue);
}

.ds-svc-card--cta:hover {
  border-style: solid;
  border-color: var(--color-misora-blue);
}

.ds-svc-card--cta .ds-svc-card__icon {
  color: var(--color-misora-blue);
  opacity: 0.85;
}

.ds-svc-card--cta .ds-svc-card__title {
  font-size: 18px;
  margin-top: var(--space-2);
}

.ds-svc-card__cta {
  align-self: flex-start;
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  margin-top: var(--space-2);
  padding-bottom: 6px;
  font-family: var(--font-label);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--color-link);
  border-bottom: 1px solid var(--color-misora-blue);
  transition: gap 0.4s var(--ease-standard);
}

.ds-svc-card--cta:hover .ds-svc-card__cta {
  gap: 18px;
}

@media (max-width: 1023px) {
  .ds-svc-why {
    grid-template-columns: 1fr;
  }
  .ds-svc-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 767px) {
  .ds-svc-grid {
    grid-template-columns: 1fr;
  }
  .ds-svc-card {
    padding: 28px 24px 24px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .ds-svc-card:hover,
  .ds-svc-card:hover .ds-svc-card__icon {
    transform: none;
  }
}

/* ---- Alternating service rows ---- */
.ds-service-row-list {
  display: grid;
  gap: var(--space-12);
}

.ds-service-row {
  display: grid;
  grid-template-columns: 1.05fr 1fr;
  gap: var(--space-10);
  align-items: center;
  padding-top: var(--space-8);
  border-top: 1px solid var(--border-divider);
}

.ds-service-row-reverse .ds-service-row-media {
  order: 2;
}

.ds-service-row-reverse .ds-service-row-body {
  order: 1;
}

.ds-service-row-media {
  aspect-ratio: 16 / 10;
  border-radius: var(--radius-lg);
  background: var(--grad-media);
}

.ds-service-row-body {
  display: grid;
  gap: var(--space-4);
}

.ds-service-row-title {
  font-family: var(--font-heading);
  font-weight: 500;
  font-size: 27px;
  letter-spacing: 0.04em;
  color: var(--text-heading);
}

.ds-service-row-copy {
  color: var(--text-body);
  line-height: 1.95;
}

/* ---- Service chips ---- */
.ds-service-chip-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: var(--space-3);
}

.ds-service-chip {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 56px;
  padding: var(--space-3) var(--space-4);
  border: 1px solid var(--border-divider);
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.6);
  color: var(--text-body);
  text-align: center;
  font-size: var(--fs-sm);
  letter-spacing: 0.04em;
  transition:
    border-color var(--duration-fast) var(--ease-standard),
    color var(--duration-fast) var(--ease-standard);
}

.ds-service-chip:hover {
  border-color: var(--color-misora-blue);
  color: var(--color-link);
}

/* ---- Feature banner ---- */
.ds-feature-banner {
  display: grid;
  grid-template-columns: minmax(220px, 0.62fr) minmax(0, 1.38fr);
  gap: var(--space-8);
  padding: var(--space-5) 0 0;
  border-top: 1px solid var(--border-divider);
}

.ds-feature-banner-media {
  aspect-ratio: 21 / 8;
  border-radius: var(--radius-lg);
  background: var(--grad-media);
}

.ds-feature-banner-body {
  display: grid;
  align-content: center;
  gap: var(--space-3);
}

.ds-feature-banner-title {
  font-family: var(--font-heading);
  font-weight: 500;
  font-size: 25px;
  letter-spacing: 0.04em;
  color: var(--text-heading);
}

.ds-feature-banner-copy {
  color: var(--text-body);
  max-width: 60ch;
  font-size: 14px;
  line-height: 1.9;
}

/* ---- Works cards ---- */
.ds-works-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-8) clamp(24px, 4vw, 56px);
}

.ds-works-card {
  display: block;
  background: transparent;
  border: none;
  color: inherit;
}

.ds-works-card__thumb {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--border-subtle);
  border-radius: 0;
}

/* headline + sub above the thumbnail */
.ds-works-card__head {
  margin-bottom: var(--space-4);
}

.ds-works-card__sub {
  margin-top: var(--space-1);
  font-family: var(--font-label);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--text-soft);
}

/* status badge overlaid on the top-left of the thumbnail — dark translucent
   tag + white text (matching the reference look). */
.ds-works-card__badge {
  position: absolute;
  top: var(--space-3);
  left: var(--space-3);
  z-index: 1;
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 5px 13px 5px 12px;
  background: rgba(30, 30, 30, 0.6);
  color: #fff;
  font-family: var(--font-label);
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  border-radius: var(--radius-xl);
}

/* small white dot before the label text */
.ds-works-card__badge::before {
  content: "";
  flex: 0 0 auto;
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: #fff;
}

.ds-works-card .ds-card-media {
  margin-bottom: 0;
  aspect-ratio: 16 / 10;
}

/* "View case" overlay revealed on hover over the thumbnail */
.ds-works-card__view {
  position: absolute;
  right: var(--space-4);
  bottom: var(--space-4);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  background: rgba(30, 30, 30, 0.82);
  color: var(--text-on-dark);
  font-family: var(--font-label);
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  opacity: 0;
  transform: translateY(8px);
  transition:
    opacity var(--duration-base) var(--ease-standard),
    transform var(--duration-base) var(--ease-standard);
}

.ds-works-card__view svg {
  width: 14px;
  height: 14px;
}

.ds-works-card:hover .ds-works-card__view {
  opacity: 1;
  transform: translateY(0);
}

.ds-works-card-body {
  padding: var(--space-5) 0 0;
}

.ds-works-meta {
  display: flex;
  gap: var(--space-3);
  flex-wrap: wrap;
  margin-bottom: var(--space-3);
  font-family: var(--font-label);
  font-size: var(--fs-xs);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-soft);
}

.ds-works-title {
  margin-bottom: var(--space-2);
  font-family: var(--font-heading);
  font-weight: 500;
  font-size: 23px;
  letter-spacing: 0.03em;
  color: var(--text-heading);
}

.ds-works-copy {
  margin-bottom: var(--space-4);
  color: var(--text-body);
  line-height: 1.9;
}

/* ---- Category cards ---- */
.ds-category-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--space-6);
}

.ds-category-card {
  display: block;
  border: none;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: transparent;
}

.ds-category-media {
  aspect-ratio: 1 / 1;
  border-radius: var(--radius-lg);
  background: var(--grad-media);
}

.ds-category-label {
  display: block;
  padding: var(--space-4) 0 0;
  color: var(--text-heading);
  font-weight: 500;
  letter-spacing: 0.04em;
}

/* ---- Contact band ---- */
.ds-contact-band {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-10);
  padding: var(--space-10) 0 0;
  border-top: 1px solid var(--border-divider);
}

.ds-contact-block {
  display: grid;
  align-content: center;
  justify-items: start;
  text-align: left;
}

.ds-contact-label {
  margin-bottom: var(--space-4);
  font-family: var(--font-heading);
  font-size: 22px;
  font-weight: 500;
  letter-spacing: 0.04em;
  color: var(--text-heading);
}

.ds-contact-mail {
  margin-bottom: var(--space-3);
  font-family: var(--font-display);
  font-size: 30px;
  font-weight: 500;
  letter-spacing: 0.02em;
  color: var(--color-link);
}

.ds-contact-hours {
  color: var(--text-soft);
  font-size: var(--fs-sm);
}

.ds-contact-copy {
  margin-bottom: var(--space-4);
  color: var(--text-body);
  max-width: 30ch;
}

.ds-contact-action {
  justify-content: flex-start;
}

/* ---- Contact CTA: circle button on a blue field (ported from v06.1) ---- */
.ds-contact-cta {
  position: relative;
  overflow: hidden;
  /* full-bleed: break out of the max-1280 .ds-page to span the viewport */
  width: 100vw;
  margin-left: calc(50% - 50vw);
  margin-right: calc(50% - 50vw);
  border-radius: 0;
  color: #fff;
  background:
    radial-gradient(
      ellipse 80% 70% at 88% 28%,
      rgba(255, 255, 255, 0.55) 0%,
      rgba(255, 255, 255, 0) 55%
    ),
    radial-gradient(
      ellipse 60% 50% at 18% 82%,
      rgba(40, 80, 140, 0.35) 0%,
      rgba(40, 80, 140, 0) 60%
    ),
    linear-gradient(135deg, #5c8fcc 0%, #6c9bd2 45%, #88b1dd 100%);
  padding-top: clamp(56px, 9vh, 104px);
  padding-bottom: clamp(56px, 9vh, 104px);
}

.ds-contact-cta__glow {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 1;
  background: radial-gradient(
    circle at 50% 50%,
    rgba(255, 255, 255, 0.18) 0%,
    rgba(255, 255, 255, 0) 35%
  );
}

/* horizontal marquee — large italic serif tagline */
.ds-contact-cta__marquee {
  position: absolute;
  left: 0;
  right: 0;
  top: 50%;
  transform: translateY(-50%);
  overflow: hidden;
  z-index: 1;
  pointer-events: none;
  mask-image: linear-gradient(
    to right,
    transparent 0%,
    #000 8%,
    #000 92%,
    transparent 100%
  );
  -webkit-mask-image: linear-gradient(
    to right,
    transparent 0%,
    #000 8%,
    #000 92%,
    transparent 100%
  );
}

.ds-contact-cta__marquee-track {
  display: flex;
  white-space: nowrap;
  width: max-content;
  animation: dsCtaMarquee 52s linear infinite;
}

.ds-contact-cta__marquee-track span {
  font-family: var(--font-display);
  font-style: italic;
  font-weight: 400;
  font-size: clamp(64px, 12vw, 180px);
  line-height: 1;
  letter-spacing: 0.01em;
  color: rgba(255, 255, 255, 0.32);
  padding-right: 0.3em;
}

@keyframes dsCtaMarquee {
  from {
    transform: translateX(0);
  }
  to {
    transform: translateX(-50%);
  }
}

.ds-contact-cta__inner {
  position: relative;
  z-index: 3;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: clamp(40px, 7vh, 72px);
  padding: 0 var(--space-6);
}

.ds-contact-cta__lead {
  font-family: var(--font-mincho);
  font-size: clamp(15px, 1.4vw, 19px);
  line-height: 2.2;
  letter-spacing: 0.08em;
  color: rgba(255, 255, 255, 0.95);
  max-width: 700px;
  margin: 0 auto;
  word-break: keep-all;
}

/* circle button */
.ds-contact-cta__circle {
  position: relative;
  width: clamp(170px, 15vw, 220px);
  height: clamp(170px, 15vw, 220px);
  border-radius: 999px;
  background: #fff;
  color: #5c8fcc;
  display: grid;
  place-items: center;
  box-shadow: 0 20px 60px rgba(40, 60, 100, 0.18);
  transition:
    transform 0.6s var(--ease-standard),
    box-shadow 0.6s var(--ease-standard);
  text-decoration: none;
}

.ds-contact-cta__circle::after {
  content: "";
  position: absolute;
  inset: -14px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.4);
  opacity: 0;
  transform: scale(0.92);
  transition:
    opacity 0.5s var(--ease-standard),
    transform 0.6s var(--ease-standard);
}

.ds-contact-cta__circle:hover {
  transform: translateY(-4px);
  box-shadow: 0 28px 80px rgba(40, 60, 100, 0.24);
}

.ds-contact-cta__circle:hover::after {
  opacity: 1;
  transform: scale(1);
}

.ds-contact-cta__circle-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
}

.ds-contact-cta__circle-inner svg {
  display: block;
}

.ds-contact-cta__circle-label {
  font-family: var(--font-label);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: #5c8fcc;
}

.ds-contact-cta__sub {
  font-family: var(--font-label);
  font-size: 13px;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.75);
}

@media (prefers-reduced-motion: reduce) {
  .ds-contact-cta__marquee-track {
    animation: none;
  }
  .ds-contact-cta__circle:hover {
    transform: none;
  }
}

/* ---- Footer ---- */
.ds-footer-banner-row {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-6);
}

.ds-footer-banner {
  display: grid;
  place-items: center;
  min-height: 140px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-subtle);
  background: var(--grad-media);
  color: var(--text-heading);
  font-family: var(--font-display);
  font-size: var(--fs-xl);
}

.ds-footer-info {
  display: grid;
  gap: var(--space-2);
  color: var(--text-body);
  font-size: var(--fs-sm);
}

.ds-footer-company {
  font-family: var(--font-display);
  font-size: var(--fs-xl);
  letter-spacing: 0.12em;
  color: var(--text-heading);
}

.ds-footer-line {
  display: inline-flex;
  align-items: flex-start;
  gap: var(--space-2);
}

/* ---- Mobile sticky CTA ---- */
.ds-mobile-sticky-cta {
  display: flex;
  gap: 1px;
  border-radius: 0;
  overflow: hidden;
  border: 1px solid var(--border-divider);
  max-width: 420px;
}

.ds-mobile-sticky-cta a {
  flex: 1;
  display: inline-flex;
  justify-content: center;
  align-items: center;
  gap: var(--space-2);
  min-height: 54px;
  padding: var(--space-3);
  font-size: var(--fs-sm);
  font-weight: 500;
  letter-spacing: 0.06em;
}

.ds-mobile-sticky-cta .is-sub {
  background: var(--surface-raised);
  color: var(--color-link);
}

.ds-mobile-sticky-cta .is-main {
  background: var(--color-ink);
  color: var(--text-inverse);
}

/* ============================================
   7. Section / layout helpers
   ============================================ */
.ds-section {
  padding: var(--space-16) 0;
}

.ds-divider {
  height: 1px;
  background-color: var(--border-divider);
  border: none;
}

.ds-container {
  width: min(100%, var(--content-max));
  margin: 0 auto;
}

.ds-stack > * + * {
  margin-top: var(--space-4);
}

/* ============================================
   8. Photo ratios
   ============================================ */
.ds-ratio-32 {
  aspect-ratio: 3 / 2;
  background: var(--grad-media);
  border-radius: var(--radius-md);
}
.ds-ratio-169 {
  aspect-ratio: 16 / 9;
  background: var(--grad-media);
  border-radius: var(--radius-md);
}
.ds-ratio-11 {
  aspect-ratio: 1 / 1;
  background: var(--grad-media);
  border-radius: var(--radius-md);
}

/* ============================================
   9. Number marker (why / reason cards)
   ============================================ */
.ds-number-marker {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: var(--fs-display);
  color: var(--color-misora-blue);
  line-height: 1;
  margin-bottom: var(--space-3);
}

.ds-number-marker::after {
  content: "";
  display: block;
  width: 30px;
  height: 1px;
  background-color: var(--color-misora-blue);
  margin-top: var(--space-3);
}

/* ---- Site header / nav ---- */
.ds-site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-6);
  padding: var(--space-4) var(--space-6);
  border-bottom: 1px solid var(--border-divider);
}

.ds-site-brand {
  font-family: var(--font-display);
  font-size: var(--fs-xl);
  font-weight: 600;
  letter-spacing: 0.18em;
  color: var(--color-ink);
}

.ds-site-nav {
  display: flex;
  align-items: center;
  gap: var(--space-6);
  flex-wrap: wrap;
  font-family: var(--font-label);
  font-size: var(--fs-sm);
  letter-spacing: 0.08em;
}

.ds-site-nav a {
  color: var(--text-secondary);
  transition: color var(--duration-fast) var(--ease-standard);
}

.ds-site-nav a:hover {
  color: var(--color-ink);
}

/* normal nav items: underline draws in from the left on hover */
.ds-site-nav a:not(.ds-site-nav__cta) {
  position: relative;
  padding-bottom: 3px;
}

.ds-site-nav a:not(.ds-site-nav__cta)::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 0;
  height: 1px;
  background: var(--color-ink);
  transition: width 0.4s var(--ease-standard);
}

.ds-site-nav a:not(.ds-site-nav__cta):hover::after {
  width: 100%;
}

/* Contact CTA in the nav — pale-blue gradient to stand out */
.ds-site-nav a.ds-site-nav__cta {
  padding: 8px 22px;
  border-radius: var(--radius-sm);
  background: linear-gradient(135deg, #6c9bd2 0%, #8fb6e0 100%);
  color: #fff;
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 500;
  letter-spacing: 0.08em;
  transition:
    filter var(--duration-fast) var(--ease-standard),
    box-shadow var(--duration-fast) var(--ease-standard);
}

.ds-site-nav a.ds-site-nav__cta:hover {
  color: #fff;
  filter: brightness(1.05);
  box-shadow: 0 6px 16px rgba(108, 155, 210, 0.35);
}

/* black variant */
.ds-site-nav a.ds-site-nav__cta--ink {
  background: linear-gradient(135deg, #1e1e1e 0%, #3a3a3a 100%);
}

.ds-site-nav a.ds-site-nav__cta--ink:hover {
  box-shadow: 0 6px 16px rgba(30, 30, 30, 0.3);
}

/* ---- Site footer (dark; content-width in the DS, can go full-bleed on the site) ---- */
.ds-site-footer {
  background: var(--color-ink);
  color: rgba(255, 255, 255, 0.9);
  padding: clamp(48px, 7vw, 80px) clamp(24px, 6vw, 64px) clamp(32px, 4vw, 48px);
}

/* pale-blue gradient variant */
.ds-site-footer--blue {
  background:
    radial-gradient(
      ellipse 70% 60% at 85% 18%,
      rgba(255, 255, 255, 0.4) 0%,
      rgba(255, 255, 255, 0) 55%
    ),
    linear-gradient(135deg, #5c8fcc 0%, #6c9bd2 45%, #88b1dd 100%);
}

.ds-site-footer--blue .ds-site-footer__copy {
  color: rgba(255, 255, 255, 0.7);
}

.ds-site-footer__inner {
  max-width: var(--content-width);
  margin: 0 auto;
  display: grid;
  gap: clamp(28px, 4vw, 44px);
}

.ds-site-footer__top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-6);
}

.ds-site-footer__brand {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: clamp(28px, 4vw, 44px);
  letter-spacing: 0.16em;
  color: #fff;
}

.ds-site-footer__totop {
  flex: 0 0 auto;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: #fff;
  color: var(--color-ink);
  display: grid;
  place-items: center;
  transition: transform var(--duration-base) var(--ease-standard);
}

.ds-site-footer__totop:hover {
  transform: translateY(-4px);
  color: var(--color-ink);
}

.ds-site-footer__totop svg {
  width: 20px;
  height: 20px;
}

.ds-site-footer__divider {
  height: 1px;
  background: rgba(255, 255, 255, 0.18);
  border: none;
}

/* sitemap nav */
.ds-site-footer__nav {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4) clamp(20px, 3vw, 40px);
  font-family: var(--font-label);
  font-size: var(--fs-sm);
  letter-spacing: 0.08em;
}

.ds-site-footer__nav a {
  color: rgba(255, 255, 255, 0.78);
  transition: color var(--duration-fast) var(--ease-standard);
}

.ds-site-footer__nav a:hover {
  color: #fff;
}

.ds-site-footer__links {
  display: flex;
  flex-wrap: wrap;
  gap: clamp(20px, 3vw, 40px);
}

.ds-site-footer__link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-label);
  font-size: var(--fs-sm);
  font-weight: 400;
  letter-spacing: 0.08em;
  color: rgba(255, 255, 255, 0.7);
  transition: color var(--duration-fast) var(--ease-standard);
}

.ds-site-footer__link svg {
  width: 13px;
  height: 13px;
  opacity: 0.7;
}

.ds-site-footer__link:hover {
  color: #fff;
}

.ds-site-footer__bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-6);
  flex-wrap: wrap;
}

.ds-site-footer__social {
  display: flex;
  gap: var(--space-5);
  font-family: var(--font-label);
  font-size: var(--fs-sm);
  letter-spacing: 0.1em;
}

.ds-site-footer__social a {
  color: rgba(255, 255, 255, 0.8);
  transition: color var(--duration-fast) var(--ease-standard);
}

.ds-site-footer__social a:hover {
  color: #fff;
}

.ds-site-footer__copy {
  font-family: var(--font-display);
  font-size: 14px;
  letter-spacing: 0.06em;
  color: rgba(255, 255, 255, 0.5);
}

@media (max-width: 767px) {
  .ds-site-footer__bottom {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-4);
  }
}

@media (prefers-reduced-motion: reduce) {
  .ds-site-footer__totop:hover {
    transform: none;
  }
}

/* ---- Section common heading (big serif EN title / dash label / lead / view-detail) ---- */
.ds-section-head {
  max-width: 420px;
}

/* Reusable section title: big serif EN word + dash JP label */
.ds-section-title__en {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: clamp(44px, 5vw, 72px);
  line-height: 1.05;
  letter-spacing: 0.03em;
  color: var(--text-primary);
}

.ds-section-title__label {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  margin-top: var(--space-3);
  font-family: var(--font-mincho);
  font-size: 15px;
  letter-spacing: 0.16em;
  color: var(--text-soft);
}

.ds-section-title__label::before {
  content: "";
  width: 24px;
  height: 1px;
  background: currentColor;
}

.ds-section-head__lead {
  margin-top: var(--space-6);
  font-family: var(--font-body);
  font-size: 14px;
  line-height: 2.1;
  color: var(--text-secondary);
}

/* Reusable circle link (text + circular arrow button) */
.ds-circle-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-4);
  font-family: var(--font-display);
  font-style: normal;
  font-size: 17px;
  letter-spacing: 0.03em;
  color: var(--text-primary);
  transition: color var(--duration-fast) var(--ease-standard);
}

.ds-circle-link:hover {
  color: var(--color-ink);
}

.ds-circle-link__circle {
  display: grid;
  place-items: center;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 1px solid var(--border-strong);
  color: var(--color-link);
  transition:
    background-color var(--duration-fast) var(--ease-standard),
    border-color var(--duration-fast) var(--ease-standard),
    color var(--duration-fast) var(--ease-standard);
}

.ds-circle-link__circle svg {
  width: 14px;
  height: 14px;
}

.ds-circle-link:hover .ds-circle-link__circle {
  background: var(--color-misora-blue);
  border-color: var(--color-misora-blue);
  color: #fff;
}

@media (max-width: 600px) {
  .ds-circle-link {
    font-size: 14px;
  }
  .ds-circle-link__circle {
    width: 30px;
    height: 30px;
  }
  .ds-circle-link__circle svg {
    width: 12px;
    height: 12px;
  }
}

/* spacing when used inside the section heading */
.ds-section-head__more {
  margin-top: var(--space-8);
}

/* demo: heading (left) + content placeholder (right) */
.ds-section-head-demo {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(32px, 5vw, 72px);
  align-items: center;
}

.ds-section-head-demo__media {
  aspect-ratio: 4 / 3;
  border-radius: var(--radius-md);
  background: var(--grad-media);
}

/* even item: media on the left, heading on the right (columns stay 50:50) */
.ds-section-head-demo--reverse .ds-section-head {
  order: 2;
  justify-self: end;
}

.ds-section-head-demo--reverse .ds-section-head-demo__media {
  order: 1;
}

@media (max-width: 767px) {
  .ds-section-head-demo {
    grid-template-columns: 1fr;
  }
  .ds-section-head {
    max-width: none;
  }
  /* on mobile keep heading first regardless of reverse */
  .ds-section-head-demo--reverse .ds-section-head,
  .ds-section-head-demo--reverse .ds-section-head-demo__media {
    order: 0;
  }
}

/* ---- Reusable link patterns ----
   Animated underline via a pseudo-element scaled on the X axis — a common
   technique seen on refined editorial sites; implemented here independently. */
.ds-underline-link {
  position: relative;
  color: inherit;
  padding: 0 6px 4px;
}

.ds-underline-link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 0;
  height: 1px;
  background: var(--text-soft);
  transition: width 0.5s var(--ease-standard);
}

.ds-underline-link:hover {
  color: var(--color-ink);
}

.ds-underline-link:hover::after {
  width: 100%;
}

/* Underline swap: the resting line exits to the right while a new line
   draws in from the left (slightly delayed) on hover. */
.ds-swap-link {
  position: relative;
  color: var(--color-ink);
  padding: 0 6px 4px;
}

.ds-swap-link::before,
.ds-swap-link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 1px;
  background: var(--text-soft);
}

.ds-swap-link::before {
  transform: scaleX(1);
  transform-origin: right center;
  transition: transform 0.55s var(--ease-standard);
}

.ds-swap-link::after {
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform 0.55s var(--ease-standard);
}

/* on hover: resting line exits right first, THEN the new line draws from
   the left (delay only on hover-in so the change always starts at an edge,
   never from the middle). */
.ds-swap-link:hover::before {
  transform: scaleX(0);
}

.ds-swap-link:hover::after {
  transform: scaleX(1);
  transition-delay: 0.55s;
}

/* external-link variant: same swap underline + an external icon that
   nudges toward the top-right on hover. */
.ds-swap-link--external {
  display: inline-flex;
  align-items: center;
  gap: 5px;
}

.ds-swap-link--external svg {
  width: 14px;
  height: 14px;
  flex: 0 0 auto;
}

/* Link catalog layout (LINKS & BUTTONS section) */
.ds-link-list {
  display: grid;
  gap: var(--space-5);
}

.ds-link-list__row {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: var(--space-6);
  align-items: center;
}

.ds-link-list__label {
  font-family: var(--font-label);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-soft);
}

@media (max-width: 767px) {
  .ds-link-list__row {
    grid-template-columns: 1fr;
    gap: var(--space-2);
  }
}

.ds-breadcrumb {
  display: flex;
  gap: var(--space-2);
  flex-wrap: wrap;
  font-family: var(--font-label);
  font-size: var(--fs-sm);
  letter-spacing: 0.04em;
  color: var(--text-soft);
}

.ds-breadcrumb span:last-child {
  color: var(--text-primary);
}

/* ---- Section kicker ---- */
.ds-section-kicker {
  font-family: var(--font-label);
  font-size: var(--fs-xs);
  font-weight: 500;
  letter-spacing: 0.12em;
  color: var(--color-link);
  text-transform: uppercase;
}

/* ---- CTA band (dark ink accent section) ---- */
.ds-cta-band {
  display: grid;
  grid-template-columns: 1.6fr 1fr;
  gap: var(--space-8);
  padding: var(--space-12) var(--space-10);
  border-radius: var(--radius-xl);
  background:
    radial-gradient(
      120% 120% at 85% 15%,
      rgba(108, 155, 210, 0.35) 0%,
      rgba(108, 155, 210, 0) 55%
    ),
    linear-gradient(135deg, #222325 0%, #2e343c 100%);
  color: var(--text-inverse);
  align-items: center;
}

.ds-cta-band h3 {
  font-family: var(--font-heading);
  font-weight: 500;
  font-size: 26px;
  letter-spacing: 0.04em;
  color: var(--text-inverse);
  margin-bottom: var(--space-3);
}

.ds-cta-band p,
.ds-cta-band a {
  color: var(--text-inverse);
}

.ds-cta-band p {
  color: rgba(250, 251, 252, 0.82);
  line-height: 1.9;
}

.ds-cta-band .ds-section-kicker {
  color: var(--color-misora-blue);
  margin-bottom: var(--space-3);
}

.ds-cta-band .ds-btn-primary {
  background-color: var(--bg-white);
  color: var(--color-ink);
  border-color: var(--bg-white);
}

.ds-cta-band .ds-btn-primary:hover {
  background-color: var(--bg-blue-pale);
}

.ds-cta-band .ds-btn-outline {
  color: var(--text-inverse);
  border-color: rgba(255, 255, 255, 0.5);
  background-color: transparent;
}

.ds-cta-band .ds-btn-outline:hover {
  color: var(--color-ink);
  background-color: rgba(255, 255, 255, 0.94);
  border-color: rgba(255, 255, 255, 0.94);
}

.ds-cta-actions {
  display: flex;
  gap: var(--space-4);
  flex-wrap: wrap;
  align-items: center;
}

/* ---- News list ---- */
.ds-link-demo {
  margin-bottom: var(--space-8);
}

.ds-list {
  display: grid;
  gap: var(--space-4);
}

.ds-list-item {
  display: grid;
  grid-template-columns: 110px 1fr;
  gap: var(--space-5);
  padding-bottom: var(--space-4);
  border-bottom: 1px solid var(--border-divider);
  align-items: start;
}

.ds-list-item:last-child {
  padding-bottom: 0;
  border-bottom: none;
}

.ds-list-date {
  font-family: var(--font-label);
  font-size: var(--fs-sm);
  letter-spacing: 0.06em;
  color: var(--text-soft);
  padding-top: 2px;
}

.ds-list-title {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  color: var(--text-primary);
}

/* ---- News list (editorial archive — /news/ page style) ---- */
/* Category filter tabs */
.ds-news-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-bottom: var(--space-8);
  border-bottom: 1px solid var(--border-divider);
}

.ds-news-tab {
  font-family: var(--font-label);
  font-size: var(--fs-sm);
  letter-spacing: 0.1em;
  color: var(--text-soft);
  padding: var(--space-3) var(--space-4);
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
  transition: color var(--duration-fast) var(--ease-standard);
}

.ds-news-tab:hover {
  color: var(--color-ink);
}

.ds-news-tab.is-active {
  color: var(--color-ink);
  border-bottom-color: var(--color-misora-blue);
}

/* List — items are vertical stacks, separated by generous space */
.ds-news {
  list-style: none;
  display: grid;
}

.ds-news__item + .ds-news__item {
  border-top: 1px solid var(--border-divider);
}

.ds-news__link {
  display: block;
  padding: var(--space-6) var(--space-2);
  color: var(--text-primary);
}

.ds-news__meta {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  margin-bottom: var(--space-3);
}

.ds-news__date {
  font-family: var(--font-display);
  font-size: 18px;
  letter-spacing: 0.04em;
  color: var(--text-soft);
}

.ds-news__cat {
  font-family: var(--font-label);
  font-size: 10px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-link);
  border: 1px solid var(--bg-blue-soft);
  padding: 3px 10px;
  border-radius: var(--radius-sm);
}

.ds-news__cat--status {
  color: var(--color-success);
  border-color: rgba(44, 122, 91, 0.3);
}

.ds-news__title {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--space-5);
  font-size: 16px;
  letter-spacing: 0.02em;
  line-height: 1.7;
  color: var(--text-primary);
  transition: color var(--duration-fast) var(--ease-standard);
}

.ds-news__arrow {
  flex: 0 0 auto;
  align-self: center;
  display: inline-flex;
  color: var(--text-soft);
  transition:
    transform var(--duration-base) var(--ease-standard),
    color var(--duration-base) var(--ease-standard);
}

.ds-news__arrow svg {
  width: 18px;
  height: 18px;
  stroke-width: 1.4;
}

.ds-news__link:hover .ds-news__title {
  color: var(--color-ink);
}

.ds-news__link:hover .ds-news__arrow {
  transform: translateX(5px);
  color: var(--color-link);
}

/* Pagination */
.ds-pagination {
  display: flex;
  justify-content: center;
  gap: var(--space-2);
  margin-top: var(--space-10);
}

.ds-pagination__item {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 40px;
  height: 40px;
  padding: 0 var(--space-2);
  font-family: var(--font-label);
  font-size: var(--fs-sm);
  letter-spacing: 0.04em;
  color: var(--text-soft);
  border: 1px solid var(--border-divider);
  transition:
    color var(--duration-fast) var(--ease-standard),
    border-color var(--duration-fast) var(--ease-standard),
    background-color var(--duration-fast) var(--ease-standard);
}

.ds-pagination__item:hover {
  color: var(--color-ink);
  border-color: var(--color-misora-blue);
}

.ds-pagination__item.is-active {
  background-color: var(--color-ink);
  color: var(--text-on-dark);
  border-color: var(--color-ink);
}

@media (prefers-reduced-motion: reduce) {
  .ds-news__link:hover .ds-news__arrow {
    transform: none;
  }
}

/* ---- Forms ---- */
.ds-form-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-6);
}

.ds-field {
  display: grid;
  gap: var(--space-2);
}

.ds-field-full {
  grid-column: 1 / -1;
}

.ds-field-label {
  font-size: var(--fs-sm);
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--text-heading);
}

.ds-field-help {
  font-size: var(--fs-sm);
  color: var(--text-soft);
}

.ds-input,
.ds-textarea,
.ds-select {
  width: 100%;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-md);
  background-color: var(--bg-white);
  padding: 12px var(--space-4);
  font: inherit;
  font-size: var(--fs-base);
  color: var(--text-primary);
  transition:
    border-color var(--duration-fast) var(--ease-standard),
    box-shadow var(--duration-fast) var(--ease-standard);
}

.ds-input:focus,
.ds-textarea:focus,
.ds-select:focus {
  outline: none;
  border-color: var(--color-misora-blue);
  box-shadow: 0 0 0 3px rgba(108, 155, 210, 0.18);
}

.ds-textarea {
  min-height: 140px;
  resize: vertical;
}

.ds-field-error {
  color: var(--color-error);
  font-size: var(--fs-sm);
}

.is-error-field .ds-input,
.is-error-field .ds-textarea,
.is-error-field .ds-select {
  border-color: var(--color-error);
  background-color: rgba(192, 73, 62, 0.03);
}

.ds-check-row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
}

.ds-check {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
}

.ds-check-label {
  font-size: var(--fs-sm);
}

/* ---- Status chips ---- */
.ds-status-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: var(--space-4);
}

.ds-status-chip {
  padding: var(--space-4);
  border-radius: var(--radius-md);
  font-size: var(--fs-sm);
  font-weight: 500;
  letter-spacing: 0.04em;
}

.is-success {
  background-color: rgba(44, 122, 91, 0.12);
  color: var(--color-success);
}
.is-warning {
  background-color: rgba(176, 122, 30, 0.14);
  color: var(--color-warning);
}
.is-error {
  background-color: rgba(192, 73, 62, 0.12);
  color: var(--color-error);
}
.is-info {
  background-color: rgba(62, 114, 171, 0.12);
  color: var(--color-info);
}

/* ---- Result panels ---- */
.ds-result-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-6);
}

.ds-result-panel {
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  background: var(--surface-raised);
  padding: var(--space-8);
}

.ds-result-panel-success {
  background: linear-gradient(180deg, #ffffff 0%, #f4faf7 100%);
}
.ds-result-panel-error {
  background: linear-gradient(180deg, #ffffff 0%, #fdf6f5 100%);
}

.ds-result-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 52px;
  height: 52px;
  border-radius: var(--radius-pill);
  margin-bottom: var(--space-4);
  font-family: var(--font-label);
  font-weight: 600;
  letter-spacing: 0.04em;
}

.ds-result-icon-success {
  background: rgba(44, 122, 91, 0.12);
  color: var(--color-success);
}
.ds-result-icon-error {
  background: rgba(192, 73, 62, 0.12);
  color: var(--color-error);
}

.ds-result-title {
  margin-bottom: var(--space-3);
  font-family: var(--font-heading);
  font-weight: 500;
  font-size: var(--fs-xl);
  color: var(--text-heading);
}

.ds-result-copy {
  margin-bottom: var(--space-4);
  color: var(--text-body);
  line-height: 1.9;
}

.ds-result-list {
  display: grid;
  gap: var(--space-2);
  margin-bottom: var(--space-6);
  padding-left: 1.25rem;
  color: var(--text-body);
  font-size: var(--fs-sm);
}

/* ============================================
   10. Design-system page chrome
   ============================================ */
/* ---- Site header (sticky top bar) ---- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-6);
  padding: 14px clamp(20px, 4vw, 64px);
  background: rgba(250, 248, 245, 0.74);
  backdrop-filter: saturate(140%) blur(12px);
  -webkit-backdrop-filter: saturate(140%) blur(12px);
  border-bottom: 1px solid var(--border-divider);
}

.site-header__brand {
  display: grid;
  gap: 3px;
}

.site-header__name {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 30px;
  letter-spacing: 0.22em;
  line-height: 1;
  color: var(--color-ink);
}

.ds-page {
  max-width: 1280px;
  margin: 0 auto;
  padding: var(--space-16);
}

.ds-page-header {
  margin-bottom: var(--space-16);
  padding-bottom: var(--space-8);
  border-bottom: 1px solid var(--border-divider);
}

/* ---- Cover (reproduction of brand-guide slide 01, blended into page) ---- */
.ds-cover {
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: var(--space-12);
  min-height: 540px;
  padding: clamp(24px, 4vw, 56px) 0 var(--space-16);
  margin-bottom: var(--space-16);
}

.ds-cover__main {
  display: grid;
  gap: var(--space-5);
}

.ds-cover__title {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(48px, 8vw, 80px);
  line-height: 1;
  letter-spacing: 0.14em;
  color: var(--color-ink);
}

.ds-cover__tagline {
  font-family: var(--font-mincho);
  font-weight: 500;
  font-size: clamp(18px, 2.2vw, 26px);
  letter-spacing: 0.1em;
  color: var(--text-primary);
  border-left: 2px solid var(--color-misora-blue);
  padding-left: var(--space-4);
}

.ds-cover__lead {
  font-family: var(--font-label);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text-soft);
}

.ds-cover__intro {
  display: grid;
  gap: var(--space-4);
  max-width: 360px;
}

.ds-cover__intro-label {
  font-family: var(--font-label);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-link);
}

.ds-cover__meta {
  display: grid;
  grid-template-columns: 96px 1fr;
}

.ds-cover__meta dt,
.ds-cover__meta dd {
  padding: var(--space-2) 0;
  font-size: 12px;
}

.ds-cover__meta dt {
  font-family: var(--font-label);
  letter-spacing: 0.1em;
  color: var(--text-soft);
  padding-right: var(--space-4);
}

.ds-cover__meta dd {
  color: var(--text-primary);
  letter-spacing: 0.04em;
  padding-left: var(--space-4);
  border-left: 1px solid rgba(108, 155, 210, 0.4);
}

@media (max-width: 767px) {
  .ds-cover {
    min-height: 440px;
    gap: var(--space-8);
  }
  .ds-cover__title {
    letter-spacing: 0.08em;
  }
}

/* ---- Brand message / core (slide 02) ---- */
.ds-core__headline {
  font-family: var(--font-mincho);
  font-size: clamp(28px, 4vw, 46px);
  line-height: 1.5;
  letter-spacing: 0.06em;
  color: var(--text-primary);
  margin-bottom: var(--space-5);
}

.ds-core__sub {
  font-family: var(--font-mincho);
  font-weight: 400;
  font-size: var(--fs-base);
  line-height: 1.9;
  color: var(--text-secondary);
  margin-bottom: var(--space-12);
  max-width: 52ch;
}

.ds-core__grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1.25fr;
  gap: var(--space-10);
  padding-top: var(--space-8);
  border-top: 1px solid var(--border-divider);
}

.ds-core__col .ds-section-kicker {
  display: block;
  margin-bottom: var(--space-4);
}

.ds-core__text {
  font-family: var(--font-mincho);
  font-weight: 400;
  font-size: 17px;
  line-height: 1.95;
  letter-spacing: 0.04em;
  color: var(--text-primary);
}

.ds-values-list {
  display: grid;
  grid-template-columns: 5em 1fr;
  column-gap: var(--space-4);
  row-gap: var(--space-3);
}

.ds-values-list dt {
  font-family: var(--font-mincho);
  font-weight: 500;
  letter-spacing: 0.16em;
  color: var(--text-primary);
}

.ds-values-list dd {
  font-family: var(--font-mincho);
  font-weight: 400;
  font-size: var(--fs-sm);
  line-height: 1.75;
  color: var(--text-soft);
}

@media (max-width: 1023px) {
  .ds-core__grid {
    grid-template-columns: 1fr;
    gap: var(--space-8);
  }
}

.ds-page-eyebrow {
  font-family: var(--font-label);
  font-size: var(--fs-sm);
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-link);
  margin-bottom: var(--space-3);
}

.ds-page-title {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: clamp(40px, 5vw, 72px);
  letter-spacing: 0.06em;
  color: var(--color-ink);
  margin-bottom: var(--space-3);
}

.ds-page-subtitle {
  max-width: 64ch;
  font-size: 14px;
  line-height: 1.9;
  color: var(--text-secondary);
}

.ds-group {
  margin: 0;
  padding: var(--space-20) 0;
  /* border-top: 1px solid var(--border-divider); */
}

.ds-group-title {
  font-family: var(--font-label);
  font-weight: 500;
  font-size: var(--fs-sm);
  letter-spacing: 0.12em;
  color: var(--color-link);
  text-transform: uppercase;
  margin-bottom: var(--space-3);
}

.ds-group-heading {
  font-family: var(--font-heading);
  font-weight: 500;
  font-size: clamp(26px, 2.4vw, 36px);
  letter-spacing: 0.04em;
  color: var(--text-primary);
  margin-bottom: var(--space-10);
  padding-bottom: var(--space-5);
  border-bottom: 1px solid var(--border-divider);
}

/* ---- Foundation rule list ---- */
.ds-rule-list {
  display: grid;
  gap: var(--space-3);
  padding-left: 1.25rem;
}

.ds-rule-list li {
  color: var(--text-body);
  line-height: 1.9;
}

/* ---- Swatches ---- */
.ds-swatch-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-6);
}

.ds-swatch {
  background: var(--bg-white);
  border: 1px solid var(--border-subtle);
  overflow: hidden;
}

.ds-swatch-color {
  height: 104px;
}

.ds-swatch-color-misora {
  background: #6c9bd2;
}
.ds-swatch-color-ink {
  background: #222325;
}
.ds-swatch-color-ink-light {
  background: #3a3b3d;
}
.ds-swatch-color-link {
  background: #3e72ab;
}
.ds-swatch-color-link-hover {
  background: #6c9bd2;
}
.ds-swatch-color-mist {
  background: #eaf2fa;
  border-bottom: 1px solid var(--border-subtle);
}
.ds-swatch-color-blue-soft {
  background: #d8e5f3;
}
.ds-swatch-color-soft-black {
  background: #1e1e1e;
}
.ds-swatch-color-warm-white {
  background: #faf8f5;
  border-bottom: 1px solid var(--border-subtle);
}
.ds-swatch-color-white {
  background: #ffffff;
  border-bottom: 1px solid var(--border-subtle);
}
.ds-swatch-color-border {
  background: #e3e1db;
}
.ds-swatch-color-warm-gray {
  background: #f7f6f4;
  border-bottom: 1px solid var(--border-subtle);
}
.ds-swatch-color-light-gray {
  background: #eeece9;
  border-bottom: 1px solid var(--border-subtle);
}
.ds-swatch-color-middle-gray {
  background: #9a9690;
}

.ds-swatch-info {
  padding: var(--space-4);
}

.ds-swatch-name {
  font-weight: 600;
  font-size: var(--fs-base);
  letter-spacing: 0.02em;
  margin-bottom: var(--space-1);
}

.ds-swatch-hex {
  font-family: var(--font-label);
  font-size: var(--fs-sm);
  letter-spacing: 0.04em;
  color: var(--text-muted);
}

.ds-swatch-rgb {
  font-family: var(--font-label);
  font-size: var(--fs-xs);
  letter-spacing: 0.04em;
  color: var(--text-soft);
  margin-top: 3px;
}

/* ---- Primary color block (slide 05) ---- */
.ds-color-primary {
  display: grid;
  grid-template-columns: 280px 1fr;
  border: 1px solid var(--border-subtle);
  overflow: hidden;
  background: var(--bg-white);
}

.ds-color-primary__swatch {
  background: var(--color-misora-blue);
  min-height: 220px;
}

.ds-color-primary__spec {
  display: grid;
  align-content: center;
  gap: var(--space-5);
  padding: var(--space-8);
}

.ds-color-primary__name {
  font-family: var(--font-label);
  font-weight: 600;
  font-size: var(--fs-sm);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-primary);
}

.ds-spec-list {
  display: grid;
  grid-template-columns: 96px 1fr;
  row-gap: var(--space-3);
  column-gap: var(--space-4);
}

.ds-spec-list dt {
  font-family: var(--font-label);
  font-size: var(--fs-xs);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-soft);
}

.ds-spec-list dd {
  font-family: var(--font-label);
  font-size: var(--fs-sm);
  letter-spacing: 0.04em;
  color: var(--text-primary);
}

@media (max-width: 767px) {
  .ds-color-primary {
    grid-template-columns: 1fr;
  }
}

/* ---- Color ratio bar ---- */
.ds-ratio-bar {
  display: flex;
  height: 56px;
  overflow: hidden;
  margin-bottom: var(--space-4);
  border: 1px solid var(--border-subtle);
}

.ds-ratio-bar span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-label);
  font-size: var(--fs-xs);
  letter-spacing: 0.08em;
}

.ds-ratio-bar .is-base {
  flex: 60;
  background: var(--bg-warm);
  color: var(--text-soft);
}
.ds-ratio-bar .is-sub {
  flex: 30;
  background: var(--bg-blue-pale);
  color: var(--color-link);
}
.ds-ratio-bar .is-accent {
  flex: 10;
  background: var(--color-misora-blue);
  color: #fff;
}

/* ---- Type samples ---- */
.ds-type-sample {
  padding: var(--space-4) 0;
  border-bottom: 1px solid var(--border-divider);
}

.ds-type-sample:last-child {
  border-bottom: none;
}

.ds-type-meta {
  font-family: var(--font-label);
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--text-muted);
  margin-top: var(--space-2);
}

.ds-type-display {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: var(--fs-display);
  line-height: 1;
  letter-spacing: 0.04em;
  color: var(--color-ink);
}

.ds-type-hero {
  font-family: var(--font-heading);
  font-weight: 500;
  font-size: var(--fs-hero);
  line-height: var(--lh-heading);
  letter-spacing: 0.05em;
  color: var(--text-heading);
}

.ds-type-h2-sample {
  font-family: var(--font-heading);
  font-weight: 500;
  font-size: var(--fs-2xl);
  letter-spacing: 0.04em;
  color: var(--text-heading);
}

.ds-type-h3-sample {
  font-family: var(--font-heading);
  font-size: var(--fs-xl);
  font-weight: 600;
  letter-spacing: 0.03em;
  color: var(--text-heading);
}

.ds-type-h4-sample {
  font-family: var(--font-heading);
  font-size: var(--fs-md);
  font-weight: 600;
  letter-spacing: 0.03em;
  color: var(--text-heading);
}

.ds-type-body-sample {
  font-family: var(--font-body);
  font-size: var(--fs-base);
  line-height: var(--lh-base);
  color: var(--text-primary);
}

.ds-type-caption-sample {
  font-family: var(--font-body);
  font-size: var(--fs-sm);
  color: var(--text-muted);
}

.ds-type-label-sample {
  font-family: var(--font-label);
  font-size: var(--fs-sm);
  font-weight: 500;
  letter-spacing: 0.12em;
  color: var(--color-link);
  text-transform: uppercase;
}

.ds-type-en-sample {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 40px;
  letter-spacing: 0.04em;
  color: var(--color-ink);
}

.ds-type-rule-sample {
  font-family: var(--font-body);
  font-size: var(--fs-base);
  line-height: 1.9;
  color: var(--text-secondary);
  max-width: 52ch;
}

/* ---- Typography: font panels (slide 06) ---- */
.ds-type-fonts {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-10);
  padding-top: var(--space-6);
  border-top: 1px solid var(--border-divider);
}

/* .ds-type-font + .ds-type-font {
  padding-top: var(--space-6);
  border-top: 1px solid var(--border-divider);
} */

.ds-type-font__group {
  display: grid;
  gap: var(--space-2);
  margin-bottom: var(--space-6);
}

.ds-type-font__name {
  font-size: 26px;
  line-height: 1.1;
  letter-spacing: 0.02em;
  color: var(--text-primary);
}

.ds-type-font__role {
  font-family: var(--font-label);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-link);
}

.ds-type-font__sample {
  font-size: 18px;
  line-height: 1.6;
  color: var(--text-secondary);
}

.font-cormorant {
  font-family: var(--font-display);
  font-weight: 500;
}
.font-inter {
  font-family: "Inter", sans-serif;
}
.font-noto {
  font-family: var(--font-heading);
}
.font-noto-medium {
  font-family: var(--font-heading);
  font-weight: 500;
}

/* ---- Typography: type scale (slide 06 hierarchy) ---- */
.ds-type-scale {
  display: grid;
}

.ds-type-scale__row {
  display: grid;
  grid-template-columns: 1fr 280px;
  gap: var(--space-8);
  align-items: center;
  padding: var(--space-6) 0;
  border-top: 1px solid var(--border-divider);
}

.ds-type-scale__row:first-child {
  border-top: none;
}

.ds-type-scale__sample {
  display: grid;
  gap: 6px;
  min-width: 0;
}

.ds-type-scale__jp {
  color: var(--text-primary);
}

.ds-type-scale__en {
  color: var(--text-soft);
}

.ds-type-scale__meta {
  display: grid;
  gap: 5px;
}

.ds-type-scale__role {
  font-family: var(--font-label);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-primary);
}

.ds-type-scale__spec {
  font-family: var(--font-label);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--text-soft);
}

.ds-type-scale__usage {
  font-size: 12px;
  color: var(--text-muted);
}

/* role-specific sample sizes (exact slide 06 values) */
.is-h1 .ds-type-scale__jp {
  font-family: var(--font-mincho);
  font-weight: 500;
  font-size: 44px;
  line-height: 1.2;
}
.is-h1 .ds-type-scale__en {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 44px;
  line-height: 1.2;
}
.is-h2 .ds-type-scale__jp {
  font-family: var(--font-mincho);
  font-weight: 500;
  font-size: 28px;
  line-height: 1.36;
}
.is-h2 .ds-type-scale__en {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 28px;
  line-height: 1.36;
}
.is-h3 .ds-type-scale__jp {
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 18px;
  line-height: 1.56;
}
.is-h3 .ds-type-scale__en {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 18px;
  line-height: 1.56;
}
.is-body .ds-type-scale__jp {
  font-family: var(--font-body);
  font-weight: 400;
  font-size: 15px;
  line-height: 1.8;
}
.is-body .ds-type-scale__en {
  font-family: "Inter", sans-serif;
  font-weight: 400;
  font-size: 15px;
  line-height: 1.8;
}
.is-caption .ds-type-scale__jp {
  font-family: var(--font-body);
  font-weight: 400;
  font-size: 12px;
  line-height: 1.58;
}
.is-caption .ds-type-scale__en {
  font-family: "Inter", sans-serif;
  font-weight: 400;
  font-size: 12px;
  line-height: 1.58;
}

@media (max-width: 767px) {
  .ds-type-fonts {
    grid-template-columns: 1fr;
  }
  .ds-type-scale__row {
    grid-template-columns: 1fr;
    gap: var(--space-4);
  }
}

/* ---- Swatch chips (background rules) ---- */
.ds-swatch-chip {
  width: 44px;
  height: 26px;
  border-radius: var(--radius-sm);
}

.ds-swatch-chip-border {
  border: 1px solid var(--border-subtle);
}
.ds-swatch-chip-warm-white {
  background: #faf8f5;
}
.ds-swatch-chip-white {
  background: #ffffff;
}
.ds-swatch-chip-ink {
  background: #222325;
}
.ds-swatch-chip-accent {
  background: #eef4fa;
}

/* ---- Spec table ---- */
.ds-spec-table {
  width: 100%;
  border-collapse: collapse;
}

.ds-spec-table th,
.ds-spec-table td {
  text-align: left;
  padding: var(--space-3) var(--space-4);
  border-bottom: 1px solid var(--border-divider);
  font-size: var(--fs-sm);
  line-height: 1.8;
}

.ds-spec-table th {
  font-weight: 600;
  color: var(--text-secondary);
  width: 220px;
  white-space: nowrap;
}

/* ---- Ratio demo ---- */
.ds-ratio-demo {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
}

.ds-ratio-label {
  margin-top: var(--space-2);
  font-size: var(--fs-sm);
  color: var(--text-muted);
  text-align: center;
}

.ds-ratio-note {
  margin-top: var(--space-4);
  font-size: var(--fs-sm);
  color: var(--text-muted);
  line-height: 1.8;
}

/* ---- Card demo grid ---- */
.ds-card-demo-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-6);
}

.ds-btn-row {
  display: flex;
  gap: var(--space-4);
  flex-wrap: wrap;
  align-items: center;
}

/* ---- Visual style swatches ---- */
.ds-visual-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: var(--space-4);
}

.ds-visual-tile {
  aspect-ratio: 4 / 3;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-subtle);
}

.ds-visual-tile.v1 {
  background: var(--grad-media);
}
.ds-visual-tile.v2 {
  background: linear-gradient(135deg, #eaf1f9 0%, #fbfcfe 100%);
}
.ds-visual-tile.v3 {
  background: radial-gradient(80% 80% at 30% 20%, #ffffff 0%, #dce8f4 100%);
}
.ds-visual-tile.v4 {
  background: linear-gradient(180deg, #f3f1ec 0%, #e3edf6 100%);
}

.ds-icon-row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-5);
  color: var(--color-ink);
}

.ds-icon-row svg {
  width: 28px;
  height: 28px;
  stroke-width: 1.4;
}

/* ============================================
   11. Responsive
   ============================================ */
@media (max-width: 1023px) {
  .ds-page {
    padding: var(--space-12) var(--space-6);
  }

  .ds-cta-band,
  .ds-hero-panel,
  .ds-contact-band,
  .ds-service-grid,
  .ds-service-row,
  .ds-feature-banner,
  .ds-service-chip-grid,
  .ds-form-grid,
  .ds-status-grid,
  .ds-result-grid {
    grid-template-columns: 1fr;
  }

  .ds-list-item {
    grid-template-columns: 1fr;
    gap: var(--space-2);
  }
  .ds-ratio-demo {
    grid-template-columns: repeat(2, 1fr);
  }
  .ds-hero-panel,
  .ds-contact-band {
    padding: var(--space-8) 0;
  }
  .ds-hero-media {
    min-height: 300px;
  }

  .ds-service-row-reverse .ds-service-row-media,
  .ds-service-row-reverse .ds-service-row-body {
    order: initial;
  }
}

@media (max-width: 767px) {
  :root {
    --fs-hero: 32px;
    --fs-display: 46px;
    --fs-2xl: 24px;
    --space-16: 40px;
    --space-20: 56px;
  }

  .ds-page {
    padding: var(--space-10) var(--space-4);
  }
  .ds-contact-mail {
    font-size: 24px;
  }
  .ds-site-header {
    flex-direction: column;
    align-items: flex-start;
  }

  .ds-ratio-demo,
  .ds-swatch-grid,
  .ds-card-demo-grid,
  .ds-works-grid,
  .ds-category-grid,
  .ds-footer-banner-row {
    grid-template-columns: 1fr;
  }

  .ds-spec-table th,
  .ds-spec-table td {
    display: block;
    width: 100%;
  }
  .ds-spec-table th {
    padding-bottom: 0;
    border-bottom: none;
  }
  .ds-spec-table td {
    padding-top: var(--space-1);
  }
}

/* ============================================
   12. Motion
   ============================================ */

/* ---- Scroll reveal (driven by app.js) ----
   Hidden start state applies ONLY when .motion-ready is set on <html>
   (i.e. JS is running and motion is allowed). No-JS / reduced-motion
   users see everything immediately. Scoped to [data-reveal] elements,
   which only exist inside the MOTION section of this page. */
.motion-ready [data-reveal] {
  opacity: 0;
  transition:
    opacity 0.7s var(--ease-standard),
    transform 0.7s var(--ease-standard);
  will-change: opacity, transform;
}

/* directional start positions (up / down / left / right) */
.motion-ready [data-reveal].ds-fade--up {
  transform: translateY(28px);
}
.motion-ready [data-reveal].ds-fade--down {
  transform: translateY(-28px);
}
.motion-ready [data-reveal].ds-fade--left {
  transform: translateX(-28px);
}
.motion-ready [data-reveal].ds-fade--right {
  transform: translateX(28px);
}

/* settled state — must come AFTER the directional rules so it wins */
.motion-ready [data-reveal].is-revealed {
  opacity: 1;
  transform: none;
}

/* staggered children (demo) */
.motion-ready [data-reveal-stagger] > * {
  opacity: 0;
  transform: translateY(16px);
  transition:
    opacity 0.6s var(--ease-standard),
    transform 0.6s var(--ease-standard);
}

.motion-ready [data-reveal-stagger].is-revealed > * {
  opacity: 1;
  transform: none;
}

[data-reveal-stagger].is-revealed > *:nth-child(1) {
  transition-delay: 0.04s;
}
[data-reveal-stagger].is-revealed > *:nth-child(2) {
  transition-delay: 0.12s;
}
[data-reveal-stagger].is-revealed > *:nth-child(3) {
  transition-delay: 0.2s;
}
[data-reveal-stagger].is-revealed > *:nth-child(4) {
  transition-delay: 0.28s;
}
[data-reveal-stagger].is-revealed > *:nth-child(5) {
  transition-delay: 0.36s;
}

/* ---- Hover: works image zoom (no lift) / category lift ---- */
.ds-category-card {
  transition: transform 0.35s var(--ease-standard);
}

.ds-category-card:hover {
  transform: translateY(-5px);
}

.ds-works-card .ds-card-media,
.ds-category-card .ds-category-media {
  transition: transform 0.7s var(--ease-standard);
}

.ds-works-card:hover .ds-card-media,
.ds-category-card:hover .ds-category-media {
  transform: scale(1.06);
}

/* ---- Hover: button micro-lift ---- */
.ds-btn {
  transition:
    color var(--duration-fast) var(--ease-standard),
    background-color var(--duration-fast) var(--ease-standard),
    border-color var(--duration-fast) var(--ease-standard),
    transform var(--duration-fast) var(--ease-standard);
}

.ds-btn:not(.is-disabled):hover {
  transform: translateY(-1px);
}

/* ---- Text link: underline reveal ---- */
.ds-text-link {
  color: var(--color-link);
  padding-bottom: 2px;
  background-image: linear-gradient(
    var(--color-misora-blue),
    var(--color-misora-blue)
  );
  background-size: 0% 1px;
  background-position: 0 100%;
  background-repeat: no-repeat;
  transition: background-size 0.35s var(--ease-standard);
}

.ds-text-link:hover {
  background-size: 100% 1px;
  color: var(--color-link-hover);
}

/* ---- Atmosphere demo: slow gradient drift (Tier 2 preview) ---- */
@keyframes ds-media-drift {
  from {
    background-position: 0% 50%;
  }
  to {
    background-position: 100% 50%;
  }
}

.ds-motion-drift {
  aspect-ratio: 16 / 7;
  border: 1px solid var(--border-subtle);
  background: var(--grad-media);
  background-size: 180% 180%;
  animation: ds-media-drift 16s ease-in-out infinite alternate;
}

/* ---- Motion section: easing demo ---- */
.ds-motion-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: var(--space-6);
}

.ds-motion-demo {
  display: grid;
  gap: var(--space-3);
  padding: var(--space-6);
  border: 1px solid var(--border-subtle);
  background: var(--bg-white);
}

.ds-motion-demo__label {
  font-family: var(--font-label);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-link);
}

.ds-motion-demo__note {
  font-size: var(--fs-sm);
  color: var(--text-soft);
  line-height: 1.7;
}

.ds-reveal-demo {
  display: grid;
  gap: var(--space-3);
}

.ds-reveal-demo__item {
  padding: var(--space-4) var(--space-5);
  border-left: 2px solid var(--color-misora-blue);
  background: var(--bg-blue-pale);
  font-size: var(--fs-sm);
  color: var(--text-secondary);
}

/* directional fade-in demo tiles */
.ds-fade-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-4);
}

.ds-fade-tile {
  display: grid;
  place-content: center;
  justify-items: center;
  gap: var(--space-2);
  min-height: 128px;
  padding: var(--space-4);
  border: 1px solid var(--border-subtle);
  background: var(--bg-white);
  text-align: center;
}

.ds-fade-tile__dir {
  font-family: var(--font-display);
  font-size: 30px;
  line-height: 1;
  color: var(--color-misora-blue);
}

.ds-fade-tile__label {
  font-family: var(--font-label);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-soft);
}

@media (max-width: 767px) {
  .ds-fade-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* ---- Reduced motion: disable all of the above ---- */
@media (prefers-reduced-motion: reduce) {
  .motion-ready [data-reveal],
  .motion-ready [data-reveal-stagger] > * {
    opacity: 1 !important;
    transform: none !important;
    transition: none !important;
  }
  .ds-motion-drift {
    animation: none;
  }
  .ds-works-card,
  .ds-category-card,
  .ds-category-card:hover,
  .ds-works-card:hover .ds-card-media,
  .ds-category-card:hover .ds-category-media,
  .ds-works-card:hover .ds-works-card__view,
  .ds-btn:not(.is-disabled):hover {
    transform: none;
  }
  .ds-underline-link::after,
  .ds-swap-link::before,
  .ds-swap-link::after,
  .ds-btn-outline::before {
    transition: none;
  }
}

/* ============================================
   Mesh / aurora gradient backgrounds (CSS-only) — see design system
   ============================================ */
.ds-mesh--sky {
  background:
    radial-gradient(55% 60% at 12% 16%, rgba(108, 155, 210, 0.42) 0%, rgba(108, 155, 210, 0) 60%),
    radial-gradient(50% 58% at 88% 12%, rgba(150, 188, 230, 0.5) 0%, rgba(150, 188, 230, 0) 60%),
    radial-gradient(60% 62% at 82% 86%, rgba(196, 182, 230, 0.34) 0%, rgba(196, 182, 230, 0) 62%),
    radial-gradient(60% 62% at 20% 88%, rgba(216, 229, 243, 0.6) 0%, rgba(216, 229, 243, 0) 60%),
    linear-gradient(180deg, #eef3fb 0%, #e7eef8 100%);
}
.ds-mesh--aurora {
  background:
    linear-gradient(rgba(255, 255, 255, 0.56), rgba(255, 255, 255, 0.56)),
    url("../images/mesh-service.svg") center / cover no-repeat;
}