/* ============================================================
   claude_business.css — Division pages (group-purchase, si, portfolio)
   + Landing components used across these pages
   ============================================================ */

/* ==========================================================
   DIVISION PAGES (group-purchase, si)
   ========================================================== */
.divisionPage {
  max-width: 100%;
  padding: 0 0 3rem;
  overflow: hidden;
}

/* --- Division Hero --- */
.divisionHeroSection {
  position: relative;
  width: 100vw;
  margin-left: calc(50% - 50vw);
  margin-right: calc(50% - 50vw);
  padding: 48px 0 32px;
  overflow: hidden;
  background:
    radial-gradient(circle at 18% 18%, rgba(255, 255, 255, 0.06) 0%, transparent 34%),
    linear-gradient(180deg, #111 0%, var(--c-bg) 100%);
}

.divisionHeroSection--contained {
  width: auto;
  margin: 0;
  padding: clamp(1.5rem, 2.5vw, 2rem);
  border: 1px solid var(--c-line);
  border-radius: var(--c-radius-xl);
  box-shadow: var(--c-shadow);
  background:
    radial-gradient(circle at 18% 18%, rgba(255, 255, 255, 0.04) 0%, transparent 34%),
    linear-gradient(180deg, rgba(22, 22, 24, 0.98), rgba(14, 14, 16, 0.98));
}

.divisionHeroShell {
  width: min(1280px, calc(100% - 48px));
  margin: 0 auto;
  display: grid;
  grid-template-columns: minmax(320px, 440px) minmax(0, 1fr);
  gap: 32px;
  align-items: center;
}

.divisionHeroCopy {
  display: grid;
  gap: 12px;
  padding: 4px 0 8px;
}

.divisionHeroMedia {
  min-height: 480px;
  perspective: 1800px;
}

/* --- Media Mosaic --- */
.mediaMosaic {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 14px;
  transform-style: preserve-3d;
}

.mediaMosaicMain,
.mediaMosaicStack {
  display: grid;
  gap: 14px;
}

.mediaMosaicCard {
  position: relative;
  overflow: hidden;
  min-height: 200px;
  border-radius: var(--c-radius-lg);
  border: 1px solid var(--c-line-strong);
  background: #151515;
  box-shadow: var(--c-shadow);
  text-decoration: none;
  transition: transform 0.35s var(--c-ease), box-shadow 0.35s var(--c-ease);
}

.mediaMosaicCard.is-tall {
  min-height: 400px;
}

.mediaMosaicCard img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.mediaMosaicCard::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(0, 0, 0, 0.02), rgba(0, 0, 0, 0.7));
}

.mediaMosaicCard:hover {
  transform: translateY(-4px);
  box-shadow: var(--c-shadow-lg);
}

.mediaMosaicBody {
  position: absolute;
  inset: auto 0 0 0;
  z-index: 1;
  padding: 16px;
}

.mediaMosaicBody strong {
  display: block;
  color: #fff;
  font-size: 1rem;
  line-height: 1.2;
  letter-spacing: -0.02em;
}

.mediaMosaicBody p {
  margin: 4px 0 0;
  color: rgba(255, 255, 255, 0.7);
  font-size: 0.85rem;
  line-height: 1.5;
}

/* --- SI Hero (si.ejs) --- */
.homeSiHero {
  position: relative;
  width: 100vw;
  margin-left: calc(50% - 50vw);
  margin-right: calc(50% - 50vw);
  margin-bottom: 1rem;
  overflow: hidden;
  padding: 48px 0 32px;
  background:
    radial-gradient(circle at 18% 18%, rgba(255, 255, 255, 0.06) 0%, transparent 34%),
    linear-gradient(180deg, #111 0%, var(--c-bg) 100%);
}

.homeSiHeroShell {
  width: min(1280px, calc(100% - 48px));
  margin: 0 auto;
  display: grid;
  grid-template-columns: minmax(320px, 420px) minmax(0, 1fr);
  gap: 28px;
  align-items: center;
}

.homeSiHeroCopy {
  position: relative;
  z-index: 2;
  padding: 18px 0 18px 8px;
}

.homeSiHeroCopy h1 {
  margin: 10px 0 14px;
  color: var(--c-ink);
  font-size: clamp(1.8rem, 4.2vw, 3.2rem);
  line-height: 1.1;
  letter-spacing: -0.035em;
}

.homeSiHeroLabel {
  margin: 0;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--c-accent);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.homeSiHeroLabel::before {
  content: "";
  display: inline-block;
  width: 18px;
  height: 2px;
  background: var(--c-accent);
  border-radius: 1px;
}

.homeSiHeroText {
  margin: 0;
  color: var(--c-ink-secondary);
  font-size: 0.95rem;
  line-height: 1.75;
}

.homeSiHeroActions {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 20px;
}

/* SI Hero Showcase (3D card stack) */
.homeSiHeroStage {
  position: relative;
  min-height: 480px;
  perspective: 1800px;
}

.homeSiHeroShowcase {
  position: relative;
  width: 100%;
  height: 100%;
  transform-style: preserve-3d;
}

.homeSiHeroShot {
  --shot-width: 220px;
  position: absolute;
  top: var(--shot-top);
  left: var(--shot-left);
  z-index: var(--shot-z);
  width: clamp(150px, 18vw, var(--shot-width));
  aspect-ratio: 4 / 3;
  overflow: hidden;
  border-radius: var(--c-radius);
  border: 1px solid var(--c-line-strong);
  background: #1a1a1a;
  box-shadow: var(--c-shadow-lg);
  margin-top: var(--shot-offset);
  transform:
    rotateY(-32deg) rotateX(12deg) rotateZ(var(--shot-rotate)) translateZ(var(--shot-lift));
  transition: transform 0.3s var(--c-ease), filter 0.3s var(--c-ease), border-color 0.3s var(--c-ease);
  filter: saturate(0.9) brightness(0.9);
}

.homeSiHeroShot img {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: cover;
}

.homeSiHeroShot:hover {
  z-index: 40;
  transform:
    rotateY(-24deg) rotateX(8deg)
    rotateZ(calc((var(--shot-index) - 4) * 0.4deg))
    translateY(-8px) translateZ(36px);
  filter: saturate(1) brightness(1);
  border-color: rgba(255, 255, 255, 0.25);
}

.homeSiHeroShot.tone-1 { filter: saturate(0.82) brightness(0.88); }
.homeSiHeroShot.tone-2 { filter: saturate(0.88) brightness(0.94); }
.homeSiHeroShot.tone-3 { filter: saturate(0.78) brightness(0.86); }

/* --- Landing Feature Columns --- */
.landingFeatureColumns {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  gap: 16px;
}

/* --- Landing Feature List / Items --- */
.landingFeatureList {
  display: grid;
  gap: 0;
}

.landingFeatureItem {
  display: grid;
  grid-template-columns: 56px minmax(0, 1fr);
  gap: 16px;
  padding: 16px 0;
  border-top: 1px solid var(--c-line);
}

.landingFeatureItem:first-child {
  padding-top: 0;
  border-top: 0;
}

.landingFeatureIndex {
  padding-top: 2px;
}

.sectionIndex {
  display: block;
  color: var(--c-accent);
  font-size: clamp(1.1rem, 2vw, 1.6rem);
  font-weight: 800;
  line-height: 1;
  letter-spacing: -0.04em;
}

.landingFeatureBody strong {
  display: block;
  color: var(--c-ink);
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 6px;
}

.landingFeatureBody p {
  margin: 0;
  color: var(--c-ink-secondary);
  font-size: 0.92rem;
  line-height: 1.7;
}

/* --- Landing Quote Layout --- */
.landingQuoteLayout {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: 16px;
}

.landingQuotePanel {
  padding: 24px;
}

.landingQuotePanel strong {
  display: block;
  color: var(--c-ink);
  font-size: 1.25rem;
  line-height: 1.4;
  letter-spacing: -0.02em;
}

.landingQuotePanel p {
  margin: 12px 0 0;
  color: var(--c-ink-secondary);
  line-height: 1.75;
}

/* --- Proof List --- */
.proofList {
  display: grid;
  gap: 12px;
}

.proofItem {
  padding: 18px 20px;
}

.proofItem .landingCardBody {
  padding: 0;
  gap: 6px;
}

.proofItem .landingCardTitle {
  font-size: 1rem;
  letter-spacing: -0.01em;
}

.proofItem .landingCardDescription {
  color: var(--c-ink-secondary);
  line-height: 1.7;
}

/* --- Landing Section Bar --- */
.landingSectionBar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-top: 4px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--c-line);
}

/* --- Section Remark --- */
.sectionRemark {
  margin: 0;
  color: var(--c-ink-tertiary);
  font-size: 0.88rem;
  line-height: 1.7;
}

/* --- SI Division items (portfolio/si) --- */
.siDivisionEmpty {
  margin: 0;
  color: var(--c-ink-tertiary);
}

/* --- Dynamic text (typing animation container) --- */
.dynamicTextContainer {
  /* Placeholder for JS-driven typing effect */
}

/* ==========================================================
   RESPONSIVE
   ========================================================== */
@media (max-width: 767px) {
  .divisionHeroSection {
    padding: 28px 0 16px;
  }

  .divisionHeroShell {
    width: calc(100% - 24px);
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .divisionHeroMedia {
    min-height: auto;
    perspective: none;
  }

  .mediaMosaic {
    grid-template-columns: 1fr;
  }

  .mediaMosaicCard.is-tall {
    min-height: 260px;
  }

  .homeSiHero {
    padding: 28px 0 12px;
  }

  .homeSiHeroShell {
    width: calc(100% - 24px);
    grid-template-columns: 1fr;
  }

  .homeSiHeroCopy {
    padding: 8px 0 0;
  }

  .homeSiHeroStage {
    min-height: 380px;
    margin-top: 10px;
  }

  .homeSiHeroShot {
    top: var(--shot-mobile-top);
    left: var(--shot-mobile-left);
    width: calc(50% - 10px);
    transform: rotateZ(var(--shot-mobile-rotate)) translateY(0);
  }

  .homeSiHeroShot:hover {
    transform: rotateZ(var(--shot-mobile-hover-rotate)) translateY(-6px);
  }

  .landingFeatureColumns {
    grid-template-columns: 1fr;
  }

  .landingQuoteLayout {
    grid-template-columns: 1fr;
  }

  .landingSectionBar {
    flex-direction: column;
    align-items: flex-start;
  }
}