/* ==========================================================================
   WINHUB Renewal - About Page Modern CSS Stylesheet
   File: assets/css/pages/about.css
   Figma Design 1:1 Reference (02.ABOUT-PC: 1920x1080 Layouts)
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. HERO SECTION: Technology Architecture & Vision (Figma 1:1)
   Matching index.html .section_hero.wh-hero perfectly
   -------------------------------------------------------------------------- */
[data-barba-namespace="about-us"] .section_hero.wh-hero {
  position: relative !important;
  width: 100% !important;
  height: 100vh !important;
  min-height: 100vh !important;
  overflow: hidden !important;
  display: block !important;
  padding: 0 var(--_spacings---site-margin, 2.5rem) !important;
  box-sizing: border-box !important;
}

[data-barba-namespace="about-us"] .section_hero.wh-hero .hero-content {
  position: absolute !important;
  top: 50% !important;
  left: var(--_spacings---site-margin, 2.5rem) !important;
  right: var(--_spacings---site-margin, 2.5rem) !important;
  width: auto !important;
  transform: translateY(-50%) !important;
  margin: 0 !important;
  display: grid !important;
  grid-template-columns: 1fr 1fr 1fr 1fr 1fr 1fr 1fr 1fr 1fr 1fr 1fr 1fr !important;
  place-items: center stretch !important;
  align-items: center !important;
  z-index: 4 !important;
}

[data-barba-namespace="about-us"] .section_hero.wh-hero .hero-content_left {
  grid-column: 1 / span 8 !important;
  display: flex !important;
  flex-direction: column !important;
  align-items: flex-start !important;
  justify-content: center !important;
  text-align: left !important;
  align-self: center !important;
}

[data-barba-namespace="about-us"] .section_hero.wh-hero .hero-content_right {
  grid-column: span 4 / span 4 !important;
  display: flex !important;
  flex-direction: column !important;
  align-items: flex-start !important;
  justify-content: center !important;
  text-align: left !important;
  gap: 0.35rem !important;
  padding-bottom: 0 !important;
  align-self: center !important;
}

.section_hero.wh-hero .h1,
.section_hero.wh-hero .is-h1-span {
  text-transform: none !important;
  font-family: 'Helvetica Now Display', 'Pretendard', Arial, sans-serif !important;
  font-size: clamp(2.75rem, 4.8vw, 4.65rem) !important;
  font-weight: 700 !important;
  line-height: 1.2 !important;
  letter-spacing: -0.03em !important;
  color: #ffffff !important;
}

.wh-about-hero-sub {
  font-family: 'JetBrains Mono', monospace !important;
  font-size: clamp(1.2rem, 1.6vw, 1.85rem) !important;
  font-weight: 700 !important;
  color: rgba(255, 255, 255, 0.75) !important;
  letter-spacing: -0.02em !important;
  margin-bottom: 1.25rem !important;
}

.wh-hero-scroll {
  position: absolute;
  bottom: 2.4rem;
  left: 50%;
  transform: translateX(-50%);
  z-index: 5;
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  gap: 0.45rem;
  color: rgba(255, 255, 255, 0.72);
  text-decoration: none;
  font-family: 'JetBrains Mono', monospace;
  font-size: 13px;
  letter-spacing: 0.12em;
  transition: opacity 0.25s ease, transform 0.25s ease, color 0.25s ease;
}

.wh-hero-scroll:hover {
  opacity: 1;
  color: #ffffff;
  transform: translateX(-50%) translateY(3px);
}

.wh-hero-scroll svg {
  width: 14px;
  height: 14px;
  animation: wh-hero-bounce 1.9s infinite ease-in-out;
}

@keyframes wh-hero-bounce {

  0%,
  100% {
    transform: translateY(0);
  }

  50% {
    transform: translateY(4px);
  }
}

/* --------------------------------------------------------------------------
   2. SECTION S.01: WINHUB IS / INTRO HEADER & SPLIT SECTION
   - 100% full width, identical left-right margins as index
   - Left visual column sticky 100vh full bleed
   - Right CEO greeting & Philosophy with background subtle silhouette
   - Staggered zigzag 4 Pillars (01 TRUST, 03 SYNERGY / 02 TECH, 04 PRECISION)
   -------------------------------------------------------------------------- */
.section_about.wh-s01-about-section {
  background-color: #ffffff !important;
  color: #151515 !important;
  padding: 42px var(--_spacings---site-margin, 2.5rem) 160px !important;
  grid-row-gap: 3.5rem !important;
  row-gap: 3.5rem !important;
  position: relative !important;
  z-index: 2 !important;
  box-sizing: border-box !important;
  width: 100% !important;
  max-width: 100% !important;
  overflow: clip !important;
  isolation: isolate !important;
}

.section_about.wh-s01-about-section>.intro {
  display: flex !important;
  flex-direction: column !important;
  align-items: flex-start !important;
  justify-content: flex-start !important;
  gap: 1.35rem !important;
  padding-right: 0 !important;
  width: 100% !important;
  margin: 0 0 3.5rem 0 !important;
}

.section_about.wh-s01-about-section>.intro .eyebrows {
  float: none !important;
  margin: 0 !important;
  padding: 0 !important;
  position: static !important;
}

/* Split Content: 100% full width filling the container, Left 50% / Right 50% */
.section_about.wh-s01-about-section>.content {
  width: 100% !important;
  max-width: 100% !important;
  margin: 0 !important;
  display: grid !important;
  grid-template-columns: 40% 60% !important;
  column-gap: clamp(2rem, 4vw, 64px) !important;
  align-items: start !important;
  position: relative !important;
  isolation: isolate !important;
}

@media screen and (max-width: 1200px) {
  .section_about.wh-s01-about-section>.content {
    grid-template-columns: 1fr !important;
    row-gap: 3rem !important;
  }
}

/* Left Column: Zero gap top/bottom, 100vh full bleed vertical height */
.wh-about-split__visual-col {
  position: -webkit-sticky !important;
  position: sticky !important;
  top: 0 !important;
  width: 100% !important;
  height: 100vh !important;
  min-height: 100vh !important;
  max-height: 100vh !important;
  overflow: hidden !important;
  border-radius: 0 !important;
  margin: 0 !important;
  padding: 0 !important;
  background-color: #ffffff !important;
}

.wh-about-building-frame,
.wh-about-split__visual-col .image-wrapper {
  width: 100% !important;
  height: 100% !important;
  position: relative !important;
  overflow: hidden !important;
  margin: 0 !important;
  padding: 0 !important;
  border-radius: 0 !important;
  background-color: #f5f5f5 !important;
}

.wh-about-building-frame img,
.wh-about-split__visual-col img.wh-about-portrait-img {
  width: 100% !important;
  height: 100% !important;
  object-fit: cover !important;
  object-position: center center !important;
  display: block !important;
  margin: 0 !important;
  padding: 0 !important;
  border-radius: 0 !important;
}

/* Right Column: Left-aligned, fill container */
.wh-about-split__content-col {
  width: 100% !important;
  display: flex !important;
  flex-direction: column !important;
  align-items: flex-start !important;
  justify-content: flex-start !important;
  text-align: left !important;
  margin: 0 !important;
  padding: 0 !important;
}

/* CEO Block: Greeting + Philosophy */
.wh-ceo-block {
  min-height: 85vh;
  width: 100% !important;
  display: flex !important;
  flex-direction: column !important;
  justify-content: space-between !important;
  align-items: flex-start !important;
  text-align: left !important;
  position: relative !important;
  padding: 2rem 0 3rem 0 !important;
  box-sizing: border-box !important;
  overflow: visible !important;
}

/* Subtle background silhouette positioned behind the text, never pushing it down */
.wh-ceo-block__silhouette {
  position: absolute !important;
  right: 0 !important;
  bottom: 0 !important;
  width: clamp(220px, 22vw, 360px) !important;
  height: auto !important;
  opacity: 0.16 !important;
  pointer-events: none !important;
  z-index: 0 !important;
  display: block !important;
  user-select: none !important;
}

.wh-ceo-block>div {
  width: 100% !important;
  text-align: left !important;
  position: relative !important;
  z-index: 1 !important;
}

.wh-ceo-block__heading {
  font-family: 'Helvetica Now Display', 'Pretendard', Arial, sans-serif !important;
  font-size: clamp(2.4rem, 3.8vw, 68px) !important;
  font-weight: 700 !important;
  letter-spacing: -0.02em !important;
  line-height: 1.08 !important;
  color: #151515 !important;
  margin: 0 0 2rem 0 !important;
  text-transform: uppercase !important;
  text-align: left !important;
}

.wh-ceo-block__quote {
  font-family: 'Pretendard', sans-serif !important;
  font-size: clamp(1.4rem, 2.22vw, 38px) !important;
  font-weight: 600 !important;
  line-height: 1.35 !important;
  letter-spacing: -0.02em !important;
  color: #151515 !important;
  margin: 0 !important;
  word-break: keep-all !important;
  text-align: left !important;
  max-width: 780px !important;
}

.wh-ceo-block__meta {
  font-family: 'JetBrains Mono', 'Pretendard', monospace !important;
  font-size: 16px !important;
  font-weight: 600 !important;
  letter-spacing: 0.05em !important;
  color: #888888 !important;
  text-transform: uppercase !important;
  margin-top: 3rem !important;
  text-align: left !important;
  position: relative !important;
  z-index: 1 !important;
}

/* 4 Pillars: Staggered Zigzag Columns */
.wh-pillars-block {
  padding-top: 4rem;
  width: 100%;
}

.wh-pillars-zigzag {
  display: grid;
  grid-template-columns: 1fr 1fr;
  column-gap: 40px;
  width: 100%;
}

.wh-pillars-subcol {
  display: flex;
  flex-direction: column;
  gap: 140px;
}

.wh-pillars-subcol.is-right {
  padding-top: 160px;
}

.wh-pillar-card {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  padding: 1.5rem 0 1.5rem 1.5rem;
  border-left: 1px solid rgba(21, 21, 21, 0.15);
  min-height: 380px;
  background-color: #ffffff !important;
  isolation: isolate;
  transition: transform 0.3s ease, border-left-color 0.3s ease;
}

.wh-pillar-card:hover {
  border-left-color: #FFA800;
  transform: translateX(4px);
}

.wh-pillar-card__top {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  margin-bottom: 2rem;
}

.wh-pillar-card__num {
  font-family: 'JetBrains Mono', monospace;
  font-size: 26px;
  font-weight: 400;
  color: #999999;
}

.wh-pillar-card__icon {
  width: 64px;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.wh-pillar-card__icon img,
.wh-pillar-card__icon svg {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.wh-pillar-card__name {
  font-family: 'Helvetica Now Display', 'Pretendard', Arial, sans-serif;
  font-size: clamp(1.8rem, 2.5vw, 42px);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.1;
  color: #151515;
  margin: 0 0 1.25rem 0;
  text-transform: uppercase;
}

.wh-pillar-card__desc {
  font-family: 'Pretendard', sans-serif;
  font-size: 16px;
  font-weight: 400;
  line-height: 1.55;
  letter-spacing: -0.02em;
  color: #666666;
  margin: 0;
  word-break: keep-all;
}

/* --------------------------------------------------------------------------
   3. SECTION S.02: WINHUB HISTORY 3D CYLINDER (Figma 1:1)
   - Synchronized floating milestone thumbnail pinned vertically in center
   - Year numbers centered in screen, flanked by clean Korean descriptions
   -------------------------------------------------------------------------- */
.wh-about-history-intro {
  background-color: #ffffff;
  color: #151515;
  padding: 80px var(--_spacings---site-margin, 2.5rem) 20px;
  position: relative;
  z-index: 2;
  box-sizing: border-box;
  width: 100% !important;
  max-width: 100% !important;
}

.wh-about-history-intro__inner {
  width: 100% !important;
  max-width: 100% !important;
  margin: 0 auto;
}

.wh-about-history-intro__title {
  font-family: 'Helvetica Now Display', 'Pretendard', Arial, sans-serif;
  font-size: clamp(2rem, 3.33vw, 64px);
  font-weight: 700;
  letter-spacing: -0.025em;
  line-height: 1.18;
  color: #151515;
  margin: 1.5rem 0 0 0;
  word-break: keep-all;
}

.section_partners.wh-about-history-cylinder {
  background-color: #ffffff !important;
  color: #151515 !important;
  padding-top: 42px !important;
  /* padding-bottom: 220px !important; */
  position: relative;
  overflow: visible !important;
  width: 100% !important;
  max-width: 100% !important;
  box-sizing: border-box !important;
}

.cylindar__wrapper {
  position: relative !important;
}

/* Floating Thumbnail Slot pinned vertically across full width */
.wh-history-center-thumb-slot {
  position: absolute !important;
  top: 50% !important;
  left: 0 !important;
  width: 100% !important;
  height: 0 !important;
  transform: translateY(-50%) !important;
  z-index: 10 !important;
  pointer-events: none !important;
}

.wh-history-thumb-frame {
  position: relative !important;
  width: 100% !important;
  height: 0 !important;
  background: transparent !important;
  border: none !important;
  box-shadow: none !important;
  overflow: visible !important;
}

.wh-history-thumb {
  position: absolute !important;
  top: 50% !important;
  width: clamp(240px, 12vw, 360px) !important;
  aspect-ratio: 4 / 3 !important;
  background-color: #f7f7f7 !important;
  border-radius: 8px !important;
  border: 1px solid rgba(21, 21, 21, 0.08) !important;
  box-shadow: 0 20px 48px rgba(0, 0, 0, 0.08) !important;
  overflow: hidden !important;
  opacity: 0 !important;
  visibility: hidden !important;
  pointer-events: none !important;
  display: flex !important;
  align-items: center !important;
  justify-content: center !important;
  transition: opacity 0.4s cubic-bezier(0.16, 1, 0.3, 1),
    transform 0.4s cubic-bezier(0.16, 1, 0.3, 1),
    visibility 0.4s !important;
  will-change: opacity, transform !important;
}

/* Left-side thumbnails (Even index: 2017, 2019, 2022, 2026):
   Centered in the space between the left navigating ticks and the center year */
.wh-history-thumb.is-left {
  left: calc(25% - 130px) !important;
  right: auto !important;
  transform: translateY(-50%) translateX(calc(-50% - 20px)) scale(0.96) !important;
}

/* Right-side thumbnails (Odd index: 2018, 2020, 2024):
   Centered in the space between the center text and the right navigating ticks */
.wh-history-thumb.is-right {
  right: calc(25% - 130px) !important;
  left: auto !important;
  transform: translateY(-50%) translateX(calc(50% + 20px)) scale(0.96) !important;
}

/* Active State: Perfectly centered in the left/right midpoint zones */
.wh-history-thumb.is-left.is-active {
  opacity: 1 !important;
  visibility: visible !important;
  pointer-events: auto !important;
  transform: translateY(-50%) translateX(-50%) scale(1) !important;
}

.wh-history-thumb.is-right.is-active {
  opacity: 1 !important;
  visibility: visible !important;
  pointer-events: auto !important;
  transform: translateY(-50%) translateX(50%) scale(1) !important;
}

@media screen and (max-width: 1400px) {
  .wh-history-thumb {
    width: clamp(200px, 15vw, 260px) !important;
  }

  .wh-history-thumb.is-left {
    left: calc(25% - 100px) !important;
  }

  .wh-history-thumb.is-right {
    right: calc(25% - 100px) !important;
  }
}

.wh-history-thumb img {
  width: 100% !important;
  height: 100% !important;
  object-fit: cover !important;
  display: block !important;
}

/* Horizontal & Vertical centering for cylinder history timeline */
.section_partners.wh-about-history-cylinder .cylindar__text__wrapper {
  margin: 0 !important;
  left: 0 !important;
  right: 0 !important;
  width: 100% !important;
}

.section_partners.wh-about-history-cylinder .cylindar__text__item.wh-history-item {
  position: absolute !important;
  top: 50% !important;
  left: 50% !important;
  width: 0 !important;
  height: 0 !important;
  padding: 0 !important;
  overflow: visible !important;
  backface-visibility: hidden !important;
}

.wh-history-item__row {
  display: inline-flex !important;
  align-items: center !important;
  justify-content: center !important;
  gap: 2.5rem !important;
  text-align: left !important;
  position: absolute !important;
  left: 0 !important;
  top: 0 !important;
  transform: translate(-50%, -50%) !important;
  width: max-content !important;
  white-space: nowrap !important;
}

.wh-history-year {
  font-family: 'Helvetica Now Display', Arial, sans-serif !important;
  font-size: clamp(3.2rem, 4.5vw, 68px) !important;
  font-weight: 800 !important;
  letter-spacing: -0.03em !important;
  line-height: 1 !important;
  display: inline-block !important;
  min-width: 140px !important;
  text-align: right !important;
  transition: color 0.3s ease, opacity 0.3s ease !important;
}

.wh-history-desc {
  display: flex !important;
  flex-direction: column !important;
  gap: 0.35rem !important;
  font-family: 'Pretendard', sans-serif !important;
  font-size: 15px !important;
  line-height: 1.45 !important;
  color: #666666 !important;
  opacity: 0.3 !important;
  transition: opacity 0.4s ease, color 0.4s ease !important;
  word-break: keep-all !important;
  min-width: 280px !important;
  text-align: left !important;
  white-space: normal !important;
}

.wh-history-desc p {
  margin: 0 !important;
  padding: 0 !important;
}

.wh-history-item.is-active-item .wh-history-desc,
.cylindar__text__item:has(.is-active) .wh-history-desc,
.wh-history-year.is-active+.wh-history-desc {
  opacity: 1 !important;
  color: #151515 !important;
  font-weight: 500 !important;
}

/* --------------------------------------------------------------------------
   4. SECTION: WIREFRAME GLOBE & 4 CORE DX ARCHITECTURES
   - Full width: 100% with standard site margin padding
   - High-contrast wireframe depth globe with #555555 front stroke
   -------------------------------------------------------------------------- */
.wh-about-globe-section {
  background-color: #ffffff !important;
  color: #151515 !important;
  padding: 100px var(--_spacings---site-margin, 2.5rem) 160px !important;
  position: relative !important;
  z-index: 2 !important;
  box-sizing: border-box !important;
  overflow: hidden !important;
  width: 100% !important;
  max-width: 100% !important;
}

.wh-about-globe-wrap {
  width: 100% !important;
  max-width: 100% !important;
  margin: 0 auto !important;
  position: relative;
  min-height: 700px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.wh-globe-center {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 400px;
  height: 400px;
  display: flex;
  align-items: center;
  justify-content: center;
  pointer-events: none;
  z-index: 1;
}

.wh-globe-canvas {
  width: 100%;
  height: 100%;
  display: block;
}

.wh-globe-center__label {
  position: absolute;
  font-family: 'JetBrains Mono', monospace;
  font-size: clamp(1.8rem, 2.5vw, 42px);
  font-weight: 700;
  letter-spacing: -0.02em;
  color: #151515;
  background: rgba(255, 255, 255, 0.88);
  backdrop-filter: blur(8px);
  padding: 0.5rem 1.25rem;
  border-radius: 4px;
  border: 1px solid rgba(21, 21, 21, 0.12);
  z-index: 3;
}

.wh-globe-quadrants {
  width: 100%;
  height: 100%;
  display: grid;
  grid-template-columns: 1fr 1fr;
  grid-template-rows: 1fr 1fr;
  column-gap: 400px;
  row-gap: 80px;
  position: relative;
  z-index: 2;
}

.wh-quadrant {
  display: flex;
  flex-direction: column;
}

.wh-quadrant.is-top-left {
  align-items: flex-start;
  text-align: left;
}

.wh-quadrant.is-top-right {
  align-items: flex-end;
  text-align: right;
}

.wh-quadrant.is-bottom-left {
  align-items: flex-start;
  text-align: left;
}

.wh-quadrant.is-bottom-right {
  align-items: flex-end;
  text-align: right;
}

.wh-quadrant__title {
  font-family: 'Helvetica Now Display', 'Pretendard', Arial, sans-serif;
  font-size: clamp(1.3rem, 1.66vw, 30px);
  font-weight: 700;
  letter-spacing: -0.02em;
  color: #151515;
  margin: 0 0 0.85rem 0;
  line-height: 1.2;
}

.wh-quadrant__list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.wh-quadrant__list li {
  font-family: 'Pretendard', sans-serif;
  font-size: clamp(0.9rem, 0.95vw, 15px);
  line-height: 1.5;
  color: #666666;
}

/* --------------------------------------------------------------------------
   5. RESPONSIVE MEDIA QUERIES
   -------------------------------------------------------------------------- */
@media screen and (max-width: 1400px) {
  .wh-globe-quadrants {
    column-gap: 280px;
  }
}

@media screen and (max-width: 991px) {
  .wh-about-split__visual-col {
    position: relative;
    top: 0;
    width: 100%;
    height: 480px;
    min-height: 480px;
  }

  .wh-pillars-zigzag {
    grid-template-columns: 1fr;
    row-gap: 40px;
  }

  .wh-pillars-subcol.is-right {
    padding-top: 0;
  }

  .wh-history-center-thumb-slot {
    display: none;
  }

  .section_partners.wh-about-history-cylinder .cylindar__text__wrapper {
    margin-left: 0 !important;
  }

  .wh-globe-quadrants {
    grid-template-columns: 1fr;
    row-gap: 40px;
    column-gap: 0;
  }

  .wh-quadrant.is-top-right,
  .wh-quadrant.is-bottom-right {
    align-items: flex-start;
    text-align: left;
  }

  .wh-globe-center {
    position: relative;
    top: auto;
    left: auto;
    transform: none;
    margin: 2rem auto;
  }
}