/* =========================================================
   WHITE Design Solutions — Landing Page Stylesheet
   Brand: Structural Minimalism | Monochromatic Precision
   ========================================================= */

/* ── CSS Variables (Design System) ── */
:root {
  --color-primary: #151616;
  --color-on-primary: #ffffff;
  --color-primary-container: #2a2a2a;
  --color-on-primary-container: #929191;
  --color-secondary: #5d5f5f;
  --color-on-secondary: #ffffff;
  --color-secondary-container: #dfe0e0;
  --color-on-secondary-container: #616363;
  --color-surface: #f9f9f9;
  --color-surface-dim: #dadada;
  --color-surface-bright: #f9f9f9;
  --color-surface-container-lowest: #ffffff;
  --color-surface-container-low: #f3f3f3;
  --color-surface-container: #eeeeee;
  --color-surface-container-high: #e8e8e8;
  --color-surface-container-highest: #e2e2e2;
  --color-on-surface: #1a1c1c;
  --color-on-surface-variant: #444748;
  --color-outline: #747878;
  --color-outline-variant: #c4c7c7;
  --color-background: #f9f9f9;
  --color-on-background: #1a1c1c;
  --color-error: #ba1a1a;

  --font-display: 'Montserrat', sans-serif;
  --font-body: 'Inter', sans-serif;

  --space-base: 4px;
  --space-xs: 8px;
  --space-sm: 16px;
  --space-md: 24px;
  --space-lg: 48px;
  --space-xl: 80px;
  --space-gutter: 32px;
  --space-margin: 64px;

  --transition-fast: 200ms ease;
  --transition-medium: 400ms ease;
  --transition-slow: 700ms ease;
}

/* ── Reset & Base ── */
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  font-weight: 400;
  color: var(--color-on-background);
  background-color: var(--color-background);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

a {
  text-decoration: none;
  color: inherit;
}

ul,
ol {
  list-style: none;
}

button {
  border: none;
  background: none;
  cursor: pointer;
  font-family: inherit;
}

/* ── Typography ── */
.heading-display {
  font-family: var(--font-display);
  font-size: clamp(40px, 6vw, 64px);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.02em;
}

.heading-lg {
  font-family: var(--font-display);
  font-size: clamp(32px, 4vw, 40px);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.01em;
}

.heading-md {
  font-family: var(--font-display);
  font-size: clamp(20px, 2.5vw, 24px);
  font-weight: 600;
  line-height: 1.3;
}

.body-lg {
  font-family: var(--font-body);
  font-size: 18px;
  line-height: 1.6;
  font-weight: 400;
}

.body-md {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  font-weight: 400;
}

.label-caps {
  font-family: var(--font-body);
  font-size: 12px;
  font-weight: 600;
  line-height: 1;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

/* ── Layout Utilities ── */
.container {
  width: 100%;
  max-width: 1440px;
  margin: 0 auto;
  padding-left: var(--space-gutter);
  padding-right: var(--space-gutter);
}

.section-padding {
  padding-top: var(--space-xl);
  padding-bottom: var(--space-xl);
}

/* ── Navigation ── */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background-color: var(--color-primary);
  border-bottom: 1px solid var(--color-outline);
  transition: transform var(--transition-medium);
}

.navbar.hidden-nav {
  transform: translateY(-100%);
}

.navbar__inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-md) var(--space-gutter);
  max-width: 1440px;
  margin: 0 auto;
}

.navbar__brand {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 600;
  color: var(--color-on-primary);
  letter-spacing: -0.01em;
  text-transform: uppercase;
  display: flex;
  align-items: center;
}

.navbar__logo {
  height: 40px;
  width: auto;
  display: block;
}

.navbar__links {
  display: none;
  align-items: center;
  gap: var(--space-lg);
}

.navbar__links a {
  font-family: var(--font-body);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-on-primary);
  opacity: 0.8;
  transition: opacity var(--transition-fast);
}

.navbar__links a:hover,
.navbar__links a.active {
  opacity: 1;
  color: var(--color-on-primary);
}

.navbar__cta {
  display: none;
  padding: var(--space-sm) var(--space-md);
  border: 1px solid var(--color-on-primary);
  color: var(--color-on-primary);
  font-family: var(--font-body);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  transition: all var(--transition-fast);
}

.navbar__cta:hover {
  background-color: var(--color-on-primary);
  color: var(--color-primary);
}

.navbar__toggle {
  display: flex;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
  color: var(--color-on-primary);
}

.navbar__toggle span {
  display: block;
  width: 24px;
  height: 1.5px;
  background-color: currentColor;
  transition: all var(--transition-fast);
}

.navbar__toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(4px, 4px);
}

.navbar__toggle.active span:nth-child(2) {
  opacity: 0;
}

.navbar__toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* Mobile Menu */
.mobile-menu {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  background-color: var(--color-primary);
  z-index: 999;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: var(--space-lg);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-medium);
}

.mobile-menu.active {
  opacity: 1;
  pointer-events: all;
}

.mobile-menu a {
  font-family: var(--font-display);
  font-size: 32px;
  font-weight: 700;
  color: var(--color-on-primary);
  text-transform: uppercase;
  letter-spacing: -0.01em;
}

/* ── Hero Section ── */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--color-primary);
  overflow: hidden;
  padding-top: var(--space-xl);
}

.hero__bg {
  position: absolute;
  top: 88px;
  left: 0;
  width: 100%;
  height: calc(100% - 88px);
  object-fit: cover;
  object-position: top;
}

.hero__overlay {
  position: absolute;
  top: 88px;
  left: 0;
  width: 100%;
  height: calc(100% - 88px);
  background: linear-gradient(to bottom, rgba(21, 22, 22, 0.1), rgba(21, 22, 22, 0.4));
}

.hero__content {
  position: relative;
  z-index: 2;
  max-width: 1440px;
  width: 100%;
  margin: 0 auto;
  padding: 0 var(--space-gutter);
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.hero__title {
  color: var(--color-on-primary);
  margin-bottom: var(--space-md);
  max-width: 900px;
}

.brand-hero-title {
  font-family: var(--font-display);
  font-size: clamp(38px, 6.2vw, 76px);
  font-weight: 300;
  color: var(--color-on-primary);
  text-transform: none;
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin-bottom: var(--space-lg);
}

.hero__subtitle {
  color: rgba(255, 255, 255, 0.75);
  max-width: 640px;
  margin-bottom: var(--space-lg);
}

.hero__actions {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  width: 100%;
}

/* ── Buttons ── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-md) var(--space-lg);
  font-family: var(--font-body);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  border: 1px solid transparent;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.btn--primary {
  background-color: var(--color-primary);
  color: var(--color-on-primary);
  border-color: var(--color-primary);
}

.btn--primary:hover {
  background-color: var(--color-on-primary);
  color: var(--color-primary);
}

.btn--outline {
  background-color: transparent;
  color: var(--color-on-primary);
  border-color: var(--color-on-primary);
}

.btn--outline:hover {
  background-color: var(--color-on-primary);
  color: var(--color-primary);
}

.btn--ghost {
  background-color: var(--color-surface-container-high);
  color: var(--color-on-surface);
  border-color: var(--color-outline);
}

.btn--ghost:hover {
  background-color: var(--color-primary);
  color: var(--color-on-primary);
  border-color: var(--color-primary);
}

/* ── Dual Offering Section ── */
.offerings {
  display: grid;
  grid-template-columns: 1fr;
}

.offering {
  position: relative;
  min-height: 500px;
  overflow: hidden;
  cursor: pointer;
}

.offering__image {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.offering:hover .offering__image {
  transform: scale(1.05);
}

.offering__overlay {
  position: absolute;
  inset: 0;
  background-color: rgba(21, 22, 22, 0.3);
  transition: background-color var(--transition-medium);
}

.offering:hover .offering__overlay {
  background-color: rgba(21, 22, 22, 0.55);
}

.offering__content {
  position: absolute;
  bottom: 0;
  left: 0;
  padding: var(--space-gutter);
  width: 100%;
}

.offering__label {
  display: block;
  color: rgba(255, 255, 255, 0.85);
  margin-bottom: var(--space-sm);
}

.offering__title {
  color: var(--color-on-primary);
}

/* ── Section Headers ── */
.section-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  padding-bottom: var(--space-md);
  border-bottom: 1px solid var(--color-outline);
  margin-bottom: var(--space-margin);
}

.section-header__link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  font-family: var(--font-body);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-on-surface);
  transition: color var(--transition-fast);
}

.section-header__link:hover {
  color: var(--color-primary);
}

.section-header__link svg {
  width: 16px;
  height: 16px;
}

/* ── Project Grid ── */
.projects-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-gutter);
}

.project-card {
  cursor: pointer;
}

.project-card__image-wrapper {
  position: relative;
  overflow: hidden;
  background-color: var(--color-surface-container-high);
  border: 1px solid var(--color-outline);
  aspect-ratio: 4 / 3;
  margin-bottom: var(--space-md);
}

.project-card__image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: grayscale(100%);
  transition: filter var(--transition-slow), transform var(--transition-slow);
}

.project-card:hover .project-card__image {
  filter: grayscale(0%);
  transform: scale(1.03);
}

.project-card__meta {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
}

.project-card__title {
  color: var(--color-on-surface);
  margin-bottom: var(--space-xs);
}

.project-card__category {
  color: var(--color-on-surface-variant);
}

/* ── Philosophy Section ── */
.philosophy {
  position: relative;
  min-height: 60vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  margin: var(--space-xl) 0;
}

.philosophy__image {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: grayscale(100%);
  opacity: 0.8;
}

.philosophy__collage {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  grid-template-rows: repeat(2, 1fr);
  gap: 0;
  pointer-events: none;
}

.philosophy__collage-item {
  width: 100%;
  height: 100%;
  overflow: hidden;
  position: relative;
  background-color: var(--color-primary);
}

.philosophy__collage-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: grayscale(100%) contrast(1.1) brightness(0.78);
  opacity: 0.85;
  transition: transform var(--transition-slow), filter var(--transition-medium);
}

.philosophy:hover .philosophy__collage-item img {
  transform: scale(1.06);
  filter: grayscale(100%) contrast(1.2) brightness(0.9);
}

.philosophy__overlay {
  position: absolute;
  inset: 0;
  background-color: rgba(21, 22, 22, 0.4);
}

.philosophy__content {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 800px;
  padding: 0 var(--space-gutter);
}

.philosophy__title {
  color: var(--color-on-primary);
  margin-bottom: var(--space-md);
}

.philosophy__text {
  color: rgba(255, 255, 255, 0.9);
}

/* ── CTA Section ── */
.cta-section {
  padding-top: var(--space-xl);
  padding-bottom: var(--space-xl);
}

.cta-box {
  border: 1px solid var(--color-primary);
  padding: var(--space-xl) var(--space-lg);
  text-align: center;
  max-width: 900px;
  margin: 0 auto;
}

.cta-box__title {
  color: var(--color-primary);
  margin-bottom: var(--space-md);
  text-transform: uppercase;
}

.cta-box__text {
  color: var(--color-on-surface-variant);
  max-width: 640px;
  margin: 0 auto var(--space-lg);
}

/* ── Footer ── */
.footer {
  background-color: var(--color-surface);
  border-top: 1px solid var(--color-primary);
}

.footer__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-gutter);
  padding: var(--space-xl) var(--space-margin);
  max-width: 1440px;
  margin: 0 auto;
}

.footer__brand {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: var(--space-lg);
}

.footer__brand-title {
  font-family: var(--font-display);
  font-size: clamp(32px, 4vw, 40px);
  font-weight: 700;
  color: var(--color-primary);
  letter-spacing: -0.01em;
  text-transform: uppercase;
  margin-bottom: var(--space-md);
}

.footer__brand-text {
  color: var(--color-on-surface-variant);
  max-width: 320px;
  margin-bottom: var(--space-lg);
}

.footer__copyright {
  color: var(--color-on-surface-variant);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.footer__links {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-gutter);
}

.footer__column-title {
  font-family: var(--font-body);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-on-surface);
  margin-bottom: var(--space-sm);
  padding-bottom: var(--space-xs);
  border-bottom: 1px solid var(--color-outline);
}

.footer__column a {
  display: block;
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  color: var(--color-on-surface-variant);
  padding: var(--space-xs) 0;
  transition: color var(--transition-fast);
}

.footer__column a:hover {
  color: var(--color-primary);
}

/* ── Portfolio Filters ── */
.portfolio-filters {
  display: flex;
  justify-content: center;
  gap: var(--space-md);
  margin-bottom: var(--space-xl);
  flex-wrap: wrap;
}

.filter-btn {
  padding: var(--space-sm) var(--space-lg);
  background: transparent;
  border: 1px solid var(--color-outline);
  color: var(--color-on-surface);
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  cursor: pointer;
  transition: all var(--transition-base);
}

.filter-btn:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.filter-btn.active {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: var(--color-on-primary);
}

/* ── Scroll Reveal Animations ── */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 600ms ease, transform 600ms ease;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ── Media Queries ── */
@media (min-width: 768px) {

  .navbar__links,
  .navbar__cta {
    display: flex;
  }

  .navbar__toggle {
    display: none;
  }

  .hero__actions {
    flex-direction: row;
    width: auto;
  }

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

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

  .project-card:nth-child(even) {
    margin-top: var(--space-xl);
  }

  .footer__grid {
    grid-template-columns: 5fr 7fr;
  }

  .footer__links {
    grid-template-columns: repeat(3, 1fr);
  }

  .footer__column:last-child {
    grid-column: auto;
  }
}

@media (min-width: 1024px) {
  .cta-box {
    padding: var(--space-xl);
  }
}

/* ── Flipbook Section ── */
.portfolio-flipbook-section {
  background-color: var(--color-surface);
  border-top: 1px solid var(--color-outline-variant);
}

.flipbook-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  margin-top: var(--space-md);
  margin-bottom: var(--space-md);
  min-height: 400px;
  /* Provide initial height to avoid jump */
}

.flipbook {
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.2);
  margin-bottom: var(--space-md);
  background-color: var(--color-surface-container-low);
  /* Needed for StPageFlip */
  overflow: hidden;
}

.flipbook .page {
  background-color: white;
  overflow: hidden;
  box-shadow: inset 0 0 10px rgba(0, 0, 0, 0.05);
  display: flex;
  justify-content: center;
  align-items: center;
}

.flipbook canvas {
  width: 100%;
  height: 100%;
  object-fit: contain;
  pointer-events: none;
  /* Disable canvas interactions */
}

.flipbook-controls {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  margin-top: var(--space-md);
}

.page-info {
  font-family: var(--font-body);
  font-size: 14px;
  color: var(--color-on-surface-variant);
}

/* ── Lightbox Modal ── */
.lightbox {
  position: fixed;
  inset: 0;
  z-index: 2000;
  background-color: rgba(21, 22, 22, 0.9);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-medium);
}

.lightbox.active {
  opacity: 1;
  pointer-events: all;
}

.lightbox__content {
  position: relative;
  max-width: 90vw;
  max-height: 80vh;
  display: flex;
  justify-content: center;
  align-items: center;
  transform: scale(0.95);
  transition: transform var(--transition-medium);
}

.lightbox.active .lightbox__content {
  transform: scale(1);
}

.lightbox__image {
  max-width: 100%;
  max-height: 80vh;
  object-fit: contain;
  border: 1px solid var(--color-outline-variant);
  box-shadow: 0 30px 60px rgba(0, 0, 0, 0.4);
}

.lightbox__caption {
  font-family: var(--font-display);
  font-size: 14px;
  font-weight: 600;
  color: var(--color-on-primary);
  margin-top: var(--space-md);
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.lightbox__close {
  position: absolute;
  top: var(--space-md);
  right: var(--space-md);
  width: 44px;
  height: 44px;
  background: rgba(255, 255, 255, 0.1);
  color: var(--color-on-primary);
  border: 1px solid rgba(255, 255, 255, 0.2);
  display: flex;
  justify-content: center;
  align-items: center;
  font-size: 24px;
  cursor: pointer;
  transition: all var(--transition-fast);
  z-index: 2001;
}

.lightbox__close:hover {
  background: var(--color-on-primary);
  color: var(--color-primary);
  border-color: var(--color-on-primary);
}

/* Make plan cards and gallery images appear clickable */
.plan-card,
.gallery-item {
  cursor: zoom-in;
}

/* =========================================================
   WHITE Design Solutions — GSAP & Lenis Animation Styles
   ========================================================= */

/* FOUC Prevention & Fallback */
html.gsap-loading .reveal {
  opacity: 0 !important;
  transform: translateY(24px) !important;
}

/* Disable native scroll behavior when GSAP is active to prevent conflicts with Lenis */
.gsap-active,
.gsap-active html {
  scroll-behavior: auto !important;
}

/* Default reveal state to visible when GSAP is active, allowing GSAP to manage specifics */
.gsap-active .reveal {
  opacity: 1;
  transform: none;
}

/* Disable transitions when GSAP is active to prevent visual glitches */
.gsap-active .reveal,
.gsap-active .project-card__image,
.gsap-active .offering__image,
.gsap-active .philosophy__collage-item img {
  transition: none !important;
}

/* Body level optimizations */
body {
  overflow-x: hidden;
}

/* Transparent Navbar state (initial) */
.navbar {
  background-color: rgba(21, 22, 22, 0.45) !important;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05) !important;
  -webkit-backdrop-filter: blur(8px) !important;
  backdrop-filter: blur(8px) !important;
  transition: background-color var(--transition-medium), 
              border-color var(--transition-medium), 
              backdrop-filter var(--transition-medium), 
              padding var(--transition-medium), 
              transform var(--transition-medium);
}

/* Scrolled/Active Navbar state */
.navbar.navbar--scrolled {
  background-color: rgba(21, 22, 22, 0.85);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
}

.navbar.navbar--scrolled .navbar__inner {
  padding-top: var(--space-sm);
  padding-bottom: var(--space-sm);
}

/* Offering Parallax Adjustments */
.gsap-active .offering {
  overflow: hidden;
}

.gsap-active .offering__image {
  height: 120%;
  top: -10%;
  position: absolute;
  width: 100%;
}

/* Collage Parallax Adjustments */
.gsap-active .philosophy__collage-item img {
  height: 140%;
  top: -20%;
  position: absolute;
  width: 100%;
  object-fit: cover;
}

/* Selected Works Header draw line animation support */
.section-header {
  position: relative;
  border-bottom: none !important; /* Hide original border-bottom for drawing */
}

.section-header::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 1px;
  background-color: var(--color-outline);
  transform: scaleX(1);
  transform-origin: left;
  transition: transform var(--transition-slow);
}

.gsap-active .section-header::after {
  transform: scaleX(var(--section-line-scale, 0)); /* Animate via CSS variable */
  transition: none !important;
}

/* CTA Box line drawing support */
.cta-box {
  position: relative;
  border: none !important; /* Hide original border to draw dynamically */
}

.cta-border {
  position: absolute;
  background-color: var(--color-primary);
  z-index: 5;
}

.cta-border--top {
  top: 0;
  left: 0;
  width: 100%;
  height: 1px;
  transform: scaleX(0);
  transform-origin: left;
}

.cta-border--right {
  top: 0;
  right: 0;
  width: 1px;
  height: 100%;
  transform: scaleY(0);
  transform-origin: top;
}

.cta-border--bottom {
  bottom: 0;
  right: 0;
  width: 100%;
  height: 1px;
  transform: scaleX(0);
  transform-origin: right;
}

.cta-border--left {
  bottom: 0;
  left: 0;
  width: 1px;
  height: 100%;
  transform: scaleY(0);
  transform-origin: bottom;
}

/* Project Subpage Sticky Cover Image Pinning (Apple-Style Scroll-Over Reveal) */
body:has(main) .hero {
  position: sticky;
  top: 0;
  height: 100vh;
  z-index: 1;
  overflow: hidden;
}

body:has(main) main,
body:has(main) .cta-section,
body:has(main) .footer {
  position: relative;
  z-index: 2;
  background-color: var(--color-background);
}

body:has(main) .footer {
  background-color: var(--color-surface); /* Keep original footer surface background */
}