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

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Avenir', 'Avenir Next', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  font-size: 16px;
  line-height: 1.7;
  color: #2c2c2c;
  background: #fff;
  -webkit-font-smoothing: antialiased;
}

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

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

ul {
  list-style: none;
}

/* ========================================
   Header
   ======================================== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(0, 0, 0, 0.08);
}

.header-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  max-width: 1200px;
  margin: 0 auto;
  padding: 1rem 2.5rem;
}

.site-logo {
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.03em;
  color: #1a1a1a;
}

.main-nav ul {
  display: flex;
  gap: 2.5rem;
}

.main-nav a {
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  color: #555;
  transition: color 0.2s;
}

.main-nav a:hover,
.main-nav a.nav-active {
  color: #1a1a1a;
}

.main-nav a.nav-active {
  border-bottom: 1.5px solid #1a1a1a;
  padding-bottom: 2px;
}

/* Mobile menu */
.mobile-menu-btn {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.mobile-menu-btn span {
  display: block;
  width: 22px;
  height: 2px;
  background: #1a1a1a;
  transition: 0.3s;
}

/* ========================================
   Hero
   ======================================== */
.hero-carousel-section {
  width: 100%;
}

.hero-carousel-section .carousel-slide {
  height: 100vh;
}

.hero-content-overlay {
  position: absolute;
  inset: 0;
  z-index: 3;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 2rem;
  pointer-events: none;
}

.hero-content-overlay .btn {
  pointer-events: auto;
}

.hero-content-overlay h1,
.hero-content-overlay p {
  max-width: 720px;
}

.hero-content-overlay h1 {
  font-family: 'Avenir', 'Avenir Next', Georgia, serif;
  font-size: 2.2rem;
  font-weight: 500;
  color: #fff;
  line-height: 1.35;
  margin-bottom: 1rem;
  text-shadow: 0 2px 20px rgba(0, 0, 0, 0.4);
}

.hero-subtitle {
  font-size: 0.85rem;
  font-weight: 400;
  letter-spacing: 0.05em;
  color: rgba(255, 255, 255, 0.7);
  margin-bottom: 1.25rem;
}

.hero-description {
  font-size: 1rem;
  color: rgba(255, 255, 255, 0.85);
  line-height: 1.7;
  margin-bottom: 2rem;
}

.hero-buttons {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}

/* ========================================
   Buttons
   ======================================== */
.btn {
  display: inline-block;
  padding: 0.75rem 2rem;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  border-radius: 2px;
  transition: all 0.25s;
  cursor: pointer;
}

.btn-primary {
  background: #fff;
  color: #1a1a1a;
}

.btn-primary:hover {
  background: #e8e8e8;
}

.btn-outline {
  background: transparent;
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.5);
}

.btn-outline:hover {
  border-color: #fff;
  background: rgba(255, 255, 255, 0.1);
}

/* ========================================
   Research Tagline
   ======================================== */
.research-tagline {
  text-align: center;
  padding: 5rem 2rem;
  max-width: 800px;
  margin: 0 auto;
}

.research-tagline h2 {
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  color: #888;
  margin-bottom: 1rem;
}

.research-tagline p {
  font-family: 'Avenir', 'Avenir Next', Georgia, serif;
  font-size: 1.5rem;
  font-weight: 400;
  line-height: 1.6;
  color: #2c2c2c;
}

/* ========================================
   Section Headings
   ======================================== */
.section-heading {
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-align: center;
  color: #888;
  margin-bottom: 3rem;
}

/* ========================================
   Past Projects
   ======================================== */
.past-projects {
  padding: 4rem 2.5rem 5rem;
  max-width: 1200px;
  margin: 0 auto;
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.project-card {
  display: block;
  background: #fff;
  border-radius: 6px;
  overflow: hidden;
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.06);
  transition: transform 0.3s, box-shadow 0.3s;
}

.project-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
}

.card-image {
  aspect-ratio: 16 / 10;
  overflow: hidden;
}

.card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s;
}

.project-card:hover .card-image img {
  transform: scale(1.03);
}

.card-body {
  padding: 1.5rem;
}

.card-body time {
  display: block;
  font-size: 0.75rem;
  color: #999;
  margin-bottom: 0.5rem;
}

.card-body h3 {
  font-size: 1.1rem;
  font-weight: 600;
  color: #1a1a1a;
  line-height: 1.4;
  margin-bottom: 0.75rem;
}

.card-body p {
  font-size: 0.9rem;
  color: #666;
  line-height: 1.65;
  margin-bottom: 1rem;
}

.read-more {
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  color: #1a1a1a;
  border-bottom: 1px solid #1a1a1a;
  padding-bottom: 2px;
}

/* ========================================
   Case Studies
   ======================================== */
.case-studies {
  padding: 4rem 2.5rem 5rem;
  background: #f7f7f7;
}

.case-studies .section-heading {
  margin-bottom: 3rem;
}

.case-studies-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2rem;
  max-width: 1200px;
  margin: 0 auto;
}

.case-card {
  display: block;
  background: #fff;
  border-radius: 6px;
  overflow: hidden;
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.06);
  transition: transform 0.3s, box-shadow 0.3s;
}

.case-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
}

.case-card-image {
  position: relative;
  aspect-ratio: 16 / 9;
  overflow: hidden;
}

.case-card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.case-card-body {
  padding: 1.75rem;
}

.case-eyebrow {
  display: block;
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  color: #888;
  margin-bottom: 0.6rem;
}

.case-card-body h3 {
  font-size: 1rem;
  font-weight: 600;
  line-height: 1.5;
  color: #1a1a1a;
  margin-bottom: 0.75rem;
  letter-spacing: 0.03em;
}

.case-card-body p {
  font-size: 0.9rem;
  color: #666;
  line-height: 1.65;
  margin-bottom: 1rem;
}

/* ========================================
   Contact CTA
   ======================================== */
.contact-cta {
  text-align: center;
  padding: 6rem 2rem;
  background: #1a1a1a;
  color: #fff;
}

.contact-eyebrow {
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  color: rgba(255, 255, 255, 0.5);
  margin-bottom: 1rem;
}

.contact-cta h2 {
  font-family: 'Avenir', 'Avenir Next', Georgia, serif;
  font-size: 2.5rem;
  font-weight: 500;
  margin-bottom: 0.75rem;
}

.contact-tagline {
  font-size: 1.1rem;
  color: rgba(255, 255, 255, 0.7);
  margin-bottom: 2rem;
}

.contact-cta .btn-primary {
  background: #fff;
  color: #1a1a1a;
}

.contact-cta .btn-primary:hover {
  background: #e0e0e0;
}

/* ========================================
   Footer
   ======================================== */
.site-footer {
  background: #f7f7f7;
  padding: 3rem 2.5rem 2rem;
  border-top: 1px solid #e8e8e8;
}

.footer-inner {
  max-width: 1200px;
  margin: 0 auto;
  text-align: center;
}

.footer-logo {
  font-size: 0.85rem;
  font-weight: 600;
  color: #1a1a1a;
  letter-spacing: 0.03em;
}

.footer-nav {
  margin: 1.5rem 0;
}

.footer-nav ul {
  display: flex;
  justify-content: center;
  gap: 2rem;
}

.footer-nav a {
  font-size: 0.8rem;
  color: #666;
  transition: color 0.2s;
}

.footer-nav a:hover {
  color: #1a1a1a;
}

.footer-social {
  display: flex;
  justify-content: center;
  gap: 1.5rem;
  margin-bottom: 1.5rem;
}

.footer-social a {
  font-size: 0.8rem;
  color: #888;
  transition: color 0.2s;
}

.footer-social a:hover {
  color: #1a1a1a;
}

.footer-legal {
  display: flex;
  justify-content: center;
  gap: 1.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid #e0e0e0;
}

.footer-legal a {
  font-size: 0.75rem;
  color: #aaa;
  transition: color 0.2s;
}

.footer-legal a:hover {
  color: #666;
}

/* ========================================
   Project Page
   ======================================== */
.project-page {
  max-width: 800px;
  margin: 0 auto;
  padding: 7rem 2rem 4rem;
}

.project-hero-carousel + .project-page {
  padding-top: 3rem;
}

.project-header {
  margin-bottom: 2rem;
}

.project-header h1 {
  font-family: 'Avenir', 'Avenir Next', Georgia, serif;
  font-size: 2.2rem;
  font-weight: 500;
  line-height: 1.3;
  color: #1a1a1a;
  margin-bottom: 0.75rem;
}

.project-meta {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.project-meta time {
  font-size: 0.85rem;
  color: #999;
}

.meta-dot {
  font-size: 0.85rem;
  color: #ccc;
}

.project-intro {
  font-size: 1.05rem;
  line-height: 1.8;
  color: #444;
  margin-bottom: 2.5rem;
}

.project-section {
  margin-bottom: 2.5rem;
}

.project-section h3 {
  font-size: 1.1rem;
  font-weight: 600;
  color: #1a1a1a;
  margin-bottom: 1rem;
}

.project-section p {
  color: #444;
  line-height: 1.8;
}

.project-section ul {
  padding-left: 1.25rem;
  list-style: disc;
}

.project-section li {
  margin-bottom: 0.5rem;
  color: #444;
  line-height: 1.7;
}

.overview-list {
  padding-left: 1.25rem;
  list-style: disc;
}

.overview-list li {
  margin-bottom: 0.4rem;
  color: #444;
  line-height: 1.7;
}

.project-divider {
  border: none;
  border-top: 1px solid #e0e0e0;
  margin: 3rem 0;
}

/* ========================================
   Full-Bleed Hero Carousel
   ======================================== */
.project-hero-carousel {
  width: 100%;
  margin-top: 0;
}

.carousel {
  position: relative;
  width: 100%;
  background: #0a0a0a;
  overflow: hidden;
}

.carousel-viewport {
  width: 100%;
  overflow: hidden;
}

.carousel-track {
  display: flex;
  transition: transform 0.7s cubic-bezier(0.25, 0.1, 0.25, 1);
  will-change: transform;
}

.carousel-slide {
  flex: 0 0 100%;
  min-width: 0;
  height: 85vh;
  overflow: hidden;
}

.carousel-slide img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top;
  display: block;
}

.carousel-arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background: rgba(0, 0, 0, 0.4);
  color: #fff;
  border: none;
  width: 44px;
  height: 44px;
  font-size: 1.2rem;
  cursor: pointer;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity 0.3s, background 0.2s;
  z-index: 2;
}

.carousel:hover .carousel-arrow,
.carousel:hover .carousel-counter {
  opacity: 1;
}

.carousel-arrow:hover {
  background: rgba(0, 0, 0, 0.7);
}

.carousel-prev {
  left: 1rem;
}

.carousel-next {
  right: 1rem;
}

.carousel-counter {
  position: absolute;
  bottom: 1rem;
  right: 1rem;
  background: rgba(0, 0, 0, 0.5);
  color: #fff;
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.05em;
  padding: 0.3rem 0.75rem;
  border-radius: 2px;
  opacity: 0;
  transition: opacity 0.3s;
  z-index: 2;
}

.carousel-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    0deg,
    rgba(0, 0, 0, 0.6) 0%,
    rgba(0, 0, 0, 0.1) 50%,
    rgba(0, 0, 0, 0.3) 100%
  );
  z-index: 1;
  pointer-events: none;
}

.carousel-title-overlay {
  position: absolute;
  bottom: 3.5rem;
  left: 0;
  width: 100%;
  padding: 0 4rem;
  z-index: 3;
  pointer-events: none;
}

.carousel-title-overlay h1 {
  font-family: 'Avenir', 'Avenir Next', Georgia, serif;
  font-size: 3rem;
  font-weight: 600;
  color: #fff;
  line-height: 1.2;
  margin-bottom: 0.5rem;
  text-shadow: 0 2px 20px rgba(0, 0, 0, 0.4);
}

.carousel-title-overlay .project-meta time {
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.75);
}

/* ========================================
   Project Hero Banner (single image, dynamic)
   ======================================== */
.project-hero-banner {
  position: relative;
  width: 100%;
  max-height: 85vh;
  overflow: hidden;
}

.project-hero-banner > img {
  width: 100%;
  height: auto;
  max-height: 85vh;
  object-fit: cover;
  display: block;
}

.project-hero-banner + .project-page {
  padding-top: 3rem;
}

.project-body {
  font-family: 'Avenir', 'Avenir Next', -apple-system, sans-serif;
  font-size: 1rem;
  line-height: 1.8;
  color: #444;
}

.project-body h2 {
  font-family: 'Avenir', 'Avenir Next', Georgia, serif;
  font-size: 1.6rem;
  font-weight: 500;
  color: #1a1a1a;
  margin: 2.5rem 0 1rem;
}

.project-body h3 {
  font-family: 'Avenir', 'Avenir Next', Georgia, serif;
  font-size: 1.25rem;
  font-weight: 600;
  color: #1a1a1a;
  margin: 2rem 0 0.75rem;
}

.project-body h4 {
  font-family: 'Avenir', 'Avenir Next', Georgia, serif;
  font-size: 1.1rem;
  font-weight: 600;
  color: #1a1a1a;
  margin: 1.5rem 0 0.5rem;
}

.project-body p {
  margin: 0 0 1.25rem;
}

.project-body ul,
.project-body ol {
  padding-left: 1.5rem;
  margin: 0 0 1.25rem;
}

.project-body li {
  margin-bottom: 0.4rem;
}

.project-body hr {
  border: none;
  border-top: 1px solid #e0e0e0;
  margin: 2rem 0;
}

.project-body strong {
  color: #1a1a1a;
  font-weight: 600;
}

.project-body em {
  font-style: italic;
}

.project-body a {
  color: #1a1a1a;
  text-decoration: underline;
  text-underline-offset: 2px;
}

.project-body img {
  max-width: 100%;
  height: auto;
  border-radius: 4px;
  margin: 1rem 0;
  object-fit: contain;
}

.project-body figure {
  margin: 1.5rem 0;
}

.project-body figure img {
  width: 100%;
  height: auto;
}

.project-body figcaption {
  font-size: 0.85rem;
  color: #888;
  margin-top: 0.5rem;
}

.loading-text {
  color: #999;
  font-size: 0.9rem;
}

/* ========================================
   Related Work
   ======================================== */
.related-work {
  margin-top: 1rem;
  margin-bottom: 2rem;
}

.related-eyebrow {
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  color: #999;
  margin-bottom: 0.5rem;
}

.related-work > h2 {
  font-family: 'Avenir', 'Avenir Next', Georgia, serif;
  font-size: 1.5rem;
  font-weight: 500;
  color: #1a1a1a;
  margin-bottom: 2rem;
}

.related-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.related-grid .card-body {
  padding: 1rem;
}

.related-grid .card-body h3 {
  font-size: 0.95rem;
}

.related-grid .card-body p {
  font-size: 0.85rem;
}

/* ========================================
   Category Tags
   ======================================== */
.category-tags {
  display: flex;
  gap: 0.75rem;
  margin-top: 2rem;
  padding-top: 1.5rem;
  border-top: 1px solid #e8e8e8;
}

.category-tags a {
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.05em;
  color: #888;
  background: #f2f2f2;
  padding: 0.35rem 0.9rem;
  border-radius: 2px;
  transition: background 0.2s, color 0.2s;
}

.category-tags a:hover {
  background: #e0e0e0;
  color: #444;
}

/* ========================================
   Responsive
   ======================================== */
@media (max-width: 900px) {
  .projects-grid {
    grid-template-columns: repeat(2, 1fr);
  }

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

  .hero-content-overlay h1 {
    font-size: 1.8rem;
  }
}

@media (max-width: 768px) {
  .mobile-menu-btn {
    display: flex;
  }

  .main-nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: #fff;
    border-bottom: 1px solid #e8e8e8;
    padding: 1rem 2rem;
  }

  .main-nav.open {
    display: block;
  }

  .main-nav ul {
    flex-direction: column;
    gap: 1rem;
  }

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

  .case-studies-grid {
    grid-template-columns: 1fr;
  }

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

  .hero-content-overlay h1 {
    font-size: 1.5rem;
  }

  .hero-carousel-section .carousel-slide {
    height: 70vh;
  }

  .contact-cta h2 {
    font-size: 1.8rem;
  }

  .research-tagline p {
    font-size: 1.2rem;
  }

  .header-inner {
    padding: 1rem 1.5rem;
  }

  .project-page {
    padding: 5.5rem 1.5rem 3rem;
  }

  .project-hero-carousel + .project-page {
    padding-top: 2rem;
  }

  .carousel-slide {
    height: 60vh;
  }

  .carousel-title-overlay {
    padding: 0 1.5rem;
    bottom: 2.5rem;
  }

  .carousel-title-overlay h1 {
    font-size: 1.8rem;
  }

  .project-hero-banner,
  .project-hero-banner > img {
    max-height: 50vh;
  }

  .listing-page {
    padding: 5.5rem 1.5rem 3rem;
  }

  .listing-page .projects-grid {
    grid-template-columns: 1fr;
  }

  .content-page {
    padding: 5.5rem 1.5rem 3rem;
  }
}

/* ========================================
   Listing Pages (Projects / Blogs)
   ======================================== */
.listing-page {
  max-width: 1200px;
  margin: 0 auto;
  padding: 7rem 2.5rem 5rem;
}

.listing-header {
  margin-bottom: 3rem;
}

.listing-header h1 {
  font-family: 'Avenir', 'Avenir Next', Georgia, serif;
  font-size: 2.2rem;
  font-weight: 500;
  color: #1a1a1a;
}

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

@media (max-width: 900px) {
  .listing-page .projects-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .listing-page .projects-grid {
    grid-template-columns: 1fr;
  }
}

.listing-page .case-studies-grid {
  max-width: 100%;
}

/* ========================================
   Content Pages (About, etc.)
   ======================================== */
.content-page {
  max-width: 800px;
  margin: 0 auto;
  padding: 7rem 2rem 5rem;
}

.content-article h1 {
  font-family: 'Avenir', 'Avenir Next', Georgia, serif;
  font-size: 2.2rem;
  font-weight: 500;
  color: #1a1a1a;
  margin-bottom: 2rem;
}

.content-article p {
  color: #444;
  line-height: 1.8;
  margin-bottom: 1.25rem;
}

/* ========================================
   Project Meta Label
   ======================================== */
.meta-label {
  font-size: 0.8rem;
  color: #888;
  font-weight: 500;
}

@media (max-width: 480px) {
  .footer-nav ul {
    flex-direction: column;
    gap: 0.75rem;
  }

  .footer-social {
    flex-direction: column;
    gap: 0.5rem;
  }

  .footer-legal {
    flex-direction: column;
    gap: 0.5rem;
  }
}