/* ==========================================================================
   ITO Work Page — Pink & White theme
   ========================================================================== */
.work-page--ito {
  --pink-50:  #fff5f7;
  --pink-100: #ffe4ec;
  --pink-200: #ffc9d8;
  --pink-300: #ffa8bf;
  --pink-400: #ff85a6;
  --pink-500: #f26892;
  --pink-600: #d94c78;
  --pink-700: #9b2b55;
  --ink:      #3b1a26;

  background: var(--pink-50);
  color: var(--ink);
  font-family: var(--font-sans);
  font-weight: 300;
  letter-spacing: 0.04em;
  line-height: 1.8;
}

/* ---- Header ---- */
.work-header {
  position: fixed; top: 0; left: 0; right: 0;
  height: 68px;
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 clamp(1.25rem, 4vw, 3rem);
  z-index: 100;
  background: rgba(255, 245, 247, 0.85);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(217, 76, 120, 0.1);
}
.work-header__back,
.work-header__logo {
  color: var(--pink-700);
  font-size: 0.8rem;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  transition: color 0.3s var(--ease), transform 0.4s var(--ease);
  display: inline-flex; align-items: center; gap: 0.5rem;
}
.work-header__back:hover { color: var(--pink-500); }
.work-header__back:hover .arrow { transform: translateX(-4px); }
.work-header__back .arrow { transition: transform 0.4s var(--ease); }
.work-header__logo {
  font-family: var(--font-serif);
  letter-spacing: 0.3em;
}
.work-header__logo:hover { color: var(--pink-500); }

/* ---- Hero ---- */
.work-hero {
  padding-top: 68px;
  background:
    radial-gradient(ellipse at top right, var(--pink-100), transparent 60%),
    radial-gradient(ellipse at bottom left, var(--pink-200), transparent 55%),
    var(--pink-50);
  position: relative;
  overflow: hidden;
}
.work-hero::before {
  content: "";
  position: absolute;
  top: 60%; right: -120px;
  width: 320px; height: 320px;
  border-radius: 50%;
  background: radial-gradient(circle, var(--pink-200), transparent 70%);
  filter: blur(20px);
  opacity: 0.7;
  animation: float 10s ease-in-out infinite;
  pointer-events: none;
}
@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-30px); }
}

.work-hero__visual {
  position: relative;
  width: 100%;
  background: #fff;
  overflow: hidden;
  line-height: 0;
}
.work-hero__visual img {
  width: 100%;
  height: auto;
  display: block;
  object-fit: contain;
}

.work-hero__inner {
  max-width: 860px;
  margin: 0 auto;
  padding: clamp(3.5rem, 8vw, 6rem) clamp(1.5rem, 6vw, 4rem);
  text-align: center;
  position: relative;
  z-index: 1;
}
.work-hero__cat {
  font-family: var(--font-serif);
  font-style: italic;
  color: var(--pink-600);
  font-size: 1rem;
  letter-spacing: 0.3em;
  margin: 0 0 0.75rem;
}
.work-hero__title {
  font-family: var(--font-serif);
  font-weight: 300;
  font-size: clamp(3.5rem, 9vw, 6.5rem);
  letter-spacing: 0.12em;
  margin: 0;
  color: var(--pink-700);
  line-height: 1;
}
.work-hero__lead {
  margin: 2rem auto 3rem;
  font-size: 1rem;
  line-height: 2.1;
  color: var(--ink);
  max-width: 640px;
  text-align: left;
}
.work-hero__meta {
  display: grid;
  gap: 0.5rem;
  padding-top: 1.75rem;
  border-top: 1px solid var(--pink-200);
  max-width: 520px;
  margin: 0 auto;
  text-align: left;
}
.work-hero__meta > div {
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: 1rem;
  padding: 0.35rem 0;
}
.work-hero__meta dt {
  font-family: var(--font-serif);
  font-style: italic;
  color: var(--pink-600);
  font-size: 0.9rem;
  letter-spacing: 0.2em;
  margin: 0;
}
.work-hero__meta dd {
  margin: 0;
  color: var(--ink);
  font-size: 0.9rem;
}

/* ---- Sections ---- */
.work-section {
  padding: clamp(4rem, 9vw, 8rem) clamp(1.5rem, 6vw, 6rem);
  max-width: 1200px;
  margin: 0 auto;
}
.work-section--alt {
  max-width: none;
  background: linear-gradient(180deg, #fff 0%, var(--pink-50) 100%);
}
.work-section--alt .work-section__head,
.work-section--alt .work-section__body {
  max-width: 1200px;
  margin-left: auto;
  margin-right: auto;
}

.work-section__head {
  text-align: center;
  margin-bottom: clamp(2.5rem, 6vw, 4.5rem);
}
.work-section__no {
  display: block;
  font-family: var(--font-serif);
  font-style: italic;
  color: var(--pink-500);
  font-size: 0.9rem;
  letter-spacing: 0.3em;
  margin-bottom: 0.5rem;
}
.work-section__title {
  font-family: var(--font-serif);
  font-weight: 300;
  font-size: clamp(2rem, 4.5vw, 3rem);
  letter-spacing: 0.15em;
  margin: 0;
  color: var(--pink-700);
}
.work-section__jp {
  font-family: var(--font-serif);
  font-style: italic;
  color: var(--pink-500);
  font-size: 0.85rem;
  letter-spacing: 0.35em;
  margin: 0.75rem 0 0;
}

.work-section__body {
  max-width: 720px;
  margin: 0 auto;
  color: var(--ink);
  font-size: 1rem;
  line-height: 2;
}
.work-section__body--grid {
  max-width: 1100px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.concept-card {
  background: #fff;
  border: 1px solid var(--pink-100);
  border-radius: 20px;
  padding: 2.25rem 1.75rem;
  text-align: center;
  transition: transform 0.5s var(--ease), box-shadow 0.5s var(--ease), border-color 0.5s var(--ease);
}
.concept-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 25px 50px -30px rgba(217, 76, 120, 0.4);
  border-color: var(--pink-300);
}
.concept-card h3 {
  font-family: var(--font-serif);
  font-weight: 400;
  font-size: 1.4rem;
  letter-spacing: 0.15em;
  color: var(--pink-600);
  margin: 0 0 0.75rem;
}
.concept-card p {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.9;
  color: var(--ink);
}

/* ---- Work figures ---- */
.work-figure {
  margin: 0 auto;
  max-width: 1100px;
  overflow: hidden;
  background: #fff;
  box-shadow: 0 30px 60px -35px rgba(217, 76, 120, 0.35);
  transition: transform 0.6s var(--ease), box-shadow 0.6s var(--ease);
  line-height: 0;
}
.work-figure:hover {
  transform: translateY(-6px);
  box-shadow: 0 40px 80px -35px rgba(217, 76, 120, 0.45);
}
.work-figure img {
  width: 100%;
  height: auto;
  display: block;
}
.work-figure--compact {
  max-width: 720px;
}
.work-figure--narrow {
  max-width: 640px;
  background: #fff;
  padding: clamp(2rem, 5vw, 4rem);
}
.work-figure--narrow img {
  object-fit: contain;
}
.work-figure--icon {
  max-width: 320px;
  padding: 0;
  background: transparent;
  box-shadow: none;
}
.work-figure--icon:hover {
  box-shadow: none;
}
.work-figure--icon img {
  width: 100%;
  height: auto;
  object-fit: contain;
}

/* ---- SNS Grid (staggered) ---- */
.sns-grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  column-gap: 2rem;
  row-gap: 3rem;
  max-width: 1100px;
  margin: 0 auto;
  align-items: start;
}
.sns-item {
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}
.sns-item--1 {
  grid-column: 2 / span 5;
  justify-self: end;
}
.sns-item--2 {
  grid-column: 7 / span 5;
  justify-self: start;
}
.sns-item--1,
.sns-item--2 {
  max-width: 360px;
  width: 100%;
}
.sns-item--3 {
  grid-column: 3 / span 8;
  max-width: 640px;
  justify-self: center;
  margin-top: 1.5rem;
}
.sns-item > img {
  width: 100%;
  height: auto;
  background: #fff;
  box-shadow: 0 20px 40px -25px rgba(217, 76, 120, 0.35);
  transition: transform 0.6s var(--ease), box-shadow 0.6s var(--ease);
  display: block;
}
.sns-item:hover > img {
  transform: translateY(-5px);
  box-shadow: 0 30px 60px -30px rgba(217, 76, 120, 0.45);
}
.sns-item figcaption {
  text-align: center;
  font-family: var(--font-serif);
  font-style: italic;
  letter-spacing: 0.25em;
  color: var(--pink-600);
  font-size: 0.85rem;
}

/* ---- Gallery ---- */
.gallery {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
  max-width: 1100px;
  margin: 0 auto;
}
.gallery__item {
  margin: 0;
  border-radius: 20px;
  overflow: hidden;
  aspect-ratio: 1 / 1;
  background: #fff;
  box-shadow: 0 20px 40px -25px rgba(217, 76, 120, 0.3);
  transition: transform 0.6s var(--ease), box-shadow 0.6s var(--ease);
}
.gallery__item:hover {
  transform: translateY(-4px);
  box-shadow: 0 30px 60px -30px rgba(217, 76, 120, 0.45);
}
.gallery__item--lg {
  grid-column: span 2;
  aspect-ratio: 16 / 9;
}
.gallery__item img {
  width: 100%; height: 100%;
  object-fit: cover;
  display: block;
}
.gallery__placeholder {
  width: 100%; height: 100%;
  display: grid; place-items: center;
  background: linear-gradient(135deg, var(--pink-100), var(--pink-200));
  color: var(--pink-700);
  font-family: var(--font-serif);
  font-style: italic;
  letter-spacing: 0.25em;
  font-size: 0.9rem;
}

/* ---- Next ---- */
.work-next {
  padding: clamp(4rem, 8vw, 7rem) 1.5rem;
  text-align: center;
}
.work-next__link {
  display: inline-flex;
  align-items: center;
  gap: 1rem;
  font-family: var(--font-serif);
  font-size: 1.25rem;
  letter-spacing: 0.2em;
  color: var(--pink-700);
  padding: 1rem 2rem;
  border-bottom: 1px solid var(--pink-300);
  transition: color 0.4s var(--ease), border-color 0.4s var(--ease), letter-spacing 0.5s var(--ease);
}
.work-next__link:hover {
  color: var(--pink-500);
  border-color: var(--pink-500);
  letter-spacing: 0.28em;
}
.work-next__arrow {
  transition: transform 0.5s var(--ease);
}
.work-next__link:hover .work-next__arrow {
  transform: translateX(8px);
}

/* ---- Footer ---- */
.work-footer {
  padding: 2.5rem 1.5rem;
  text-align: center;
  background: #fff;
  border-top: 1px solid var(--pink-100);
}
.work-footer p {
  margin: 0;
  font-family: var(--font-serif);
  font-style: italic;
  font-size: 0.8rem;
  letter-spacing: 0.3em;
  color: var(--pink-600);
}

/* ---- Responsive ---- */
@media (max-width: 900px) {
  .work-section__body--grid {
    grid-template-columns: 1fr;
    gap: 1.25rem;
  }
  .gallery {
    grid-template-columns: 1fr;
  }
  .gallery__item--lg {
    grid-column: auto;
    aspect-ratio: 16 / 10;
  }
  .sns-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  .sns-item--1,
  .sns-item--2,
  .sns-item--3 {
    grid-column: 1 / -1;
    margin-top: 0;
    max-width: 100%;
    justify-self: stretch;
  }
}

@media (max-width: 640px) {
  .work-hero__meta > div {
    grid-template-columns: 80px 1fr;
  }
  .work-header__back {
    font-size: 0.7rem;
    letter-spacing: 0.2em;
  }
}