/* =============================================================================
   Cité I Designs — Architecture Portfolio
   ============================================================================= */

:root {
  --color-charcoal: #2c3e50;
  --color-charcoal-dark: #1a252f;
  --color-white: #ffffff;
  --color-offwhite: #f8f9fa;
  --color-light-gray: #e9ecef;
  --color-ink: #212529;
  --color-ink-muted: #6c757d;
  --color-accent: #c8956c;
  --color-accent-hover: #b07d55;
  --font-heading: "Outfit", -apple-system, sans-serif;
  --font-body: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --radius: 8px;
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.12);
  --shadow-lg: 0 8px 30px rgba(0, 0, 0, 0.15);
  --transition: 0.3s ease;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--color-ink);
  line-height: 1.7;
  background: var(--color-white);
}

h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.2;
}

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

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

.section {
  padding: 5rem 0;
}

.section h2 {
  font-size: 2.5rem;
  margin-bottom: 1rem;
  text-align: center;
}

.section-subtitle {
  text-align: center;
  color: var(--color-ink-muted);
  margin-bottom: 3rem;
  font-size: 1.1rem;
}

/* -----------------------------------------------------------------------------
   Navigation
   ----------------------------------------------------------------------------- */

.navbar {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 1000;
  width: 100%;
  height: 70px;
  background: var(--color-charcoal);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 1.5rem;
  transition: box-shadow var(--transition);
}

.navbar .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

.navbar.nav-scrolled {
  box-shadow: var(--shadow-md);
}

.nav-brand {
  color: var(--color-white);
  font-family: var(--font-heading);
  font-size: 1.3rem;
  letter-spacing: 2px;
  text-decoration: none;
  font-weight: 700;
}

.nav-links {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  align-items: center;
  gap: 2rem;
}

.nav-links a {
  color: rgba(255, 255, 255, 0.85);
  text-decoration: none;
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  transition: color var(--transition);
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--color-accent);
}

.nav-cta {
  background: var(--color-accent);
  color: var(--color-white);
  padding: 0.5rem 1.25rem;
  border-radius: var(--radius);
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  text-decoration: none;
  transition: background var(--transition), color var(--transition);
}

.nav-cta:hover {
  background: var(--color-accent-hover);
  color: var(--color-white);
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: 2px solid rgba(255, 255, 255, 0.35);
  border-radius: var(--radius);
  cursor: pointer;
  color: var(--color-white);
  padding: 0;
}

.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: currentColor;
  position: relative;
}

.nav-toggle span::before,
.nav-toggle span::after {
  content: "";
  position: absolute;
  left: 0;
  width: 22px;
  height: 2px;
  background: currentColor;
  transition: transform var(--transition), top var(--transition);
}

.nav-toggle span::before {
  top: -7px;
}

.nav-toggle span::after {
  top: 7px;
}

@media (max-width: 900px) {
  .nav-toggle {
    display: flex;
  }

  .nav-links {
    position: absolute;
    top: 70px;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background: var(--color-charcoal-dark);
    max-height: 0;
    overflow: hidden;
    opacity: 0;
    visibility: hidden;
    transition: max-height 0.35s ease, opacity 0.35s ease, visibility 0.35s ease;
    box-shadow: var(--shadow-lg);
  }

  .nav-links.nav-open {
    max-height: 400px;
    opacity: 1;
    visibility: visible;
  }

  .nav-links li {
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  }

  .nav-links a {
    display: block;
    padding: 1rem 1.5rem;
  }

  .nav-links .nav-cta-wrap {
    padding: 1rem 1.5rem 1.25rem;
  }

  .nav-links .nav-cta {
    display: inline-block;
    text-align: center;
  }
}

/* -----------------------------------------------------------------------------
   Hero
   ----------------------------------------------------------------------------- */

.hero {
  position: relative;
  height: 100vh;
  min-height: 480px;
  background-size: cover;
  background-position: center;
  background-attachment: fixed;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.45);
  z-index: 0;
}

.hero-inner {
  position: relative;
  z-index: 1;
  color: var(--color-white);
  padding: 0 1.5rem;
  width: 100%;
  max-width: 100%;
  min-width: 0;
  box-sizing: border-box;
  overflow-wrap: break-word;
}

.hero h1 {
  font-size: 4rem;
  margin-bottom: 0.5rem;
}

.hero-subtitle {
  font-size: 1.5rem;
  letter-spacing: 3px;
  text-transform: uppercase;
  font-weight: 300;
  opacity: 0.9;
  margin: 0;
}

.hero-tagline {
  font-size: 1.15rem;
  max-width: 600px;
  margin: 1.5rem auto;
  opacity: 0.85;
}

.hero-cta {
  display: inline-block;
  background: var(--color-accent);
  color: var(--color-white);
  padding: 1rem 2.5rem;
  border-radius: var(--radius);
  font-size: 1rem;
  text-transform: uppercase;
  letter-spacing: 2px;
  text-decoration: none;
  transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
}

.hero-cta:hover {
  background: var(--color-accent-hover);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.hero-short {
  height: 50vh;
  min-height: 320px;
}

@media (max-width: 768px) {
  .hero {
    background-attachment: scroll;
  }

  .adus,
  .services,
  .testimonials {
    background-attachment: scroll;
  }

  .hero h1 {
    font-size: 3rem;
  }

  .hero-subtitle {
    font-size: 1rem;
    letter-spacing: 2px;
  }
}

/* -----------------------------------------------------------------------------
   About
   ----------------------------------------------------------------------------- */

.about {
  background: var(--color-offwhite);
}

.about-content {
  max-width: 800px;
  margin: 0 auto;
  font-size: 1.05rem;
  text-align: center;
}

/* -----------------------------------------------------------------------------
   Services
   ----------------------------------------------------------------------------- */

.services {
  position: relative;
  background-image: url('../images/services-hero.jpg');
  background-size: cover;
  background-position: center;
  background-attachment: fixed;
}

.services::before {
  content: "";
  position: absolute;
  inset: 0;
  background: rgba(255, 255, 255, 0.55);
  z-index: 0;
}

.services > .container {
  position: relative;
  z-index: 1;
}

.services h2 {
  color: var(--color-charcoal);
}

.services .section-subtitle {
  color: var(--color-charcoal);
  opacity: 0.8;
}

.services-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
  align-items: start;
}

@media (min-width: 600px) {
  .services-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
  }
}

@media (min-width: 960px) {
  .services-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 1.75rem;
  }
}

@media (min-width: 1280px) {
  .services-grid {
    grid-template-columns: repeat(5, 1fr);
    gap: 1.5rem;
  }
}

.service-card {
  position: relative;
  aspect-ratio: 4 / 5;
  width: 100%;
  padding: 0;
  margin: 0;
  border: none;
  border-radius: var(--radius);
  overflow: hidden;
  cursor: pointer;
  background: var(--color-charcoal);
  color: var(--color-white);
  font: inherit;
  text-align: left;
  box-shadow: var(--shadow-md);
  transition: box-shadow var(--transition), transform var(--transition);
  -webkit-tap-highlight-color: transparent;
}

.service-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-3px);
}

.service-card:focus-visible {
  outline: 3px solid var(--color-accent);
  outline-offset: 3px;
}

.service-card-images {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.service-card-image {
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity 0.9s ease;
}

.service-card-image.active {
  opacity: 1;
}

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

.service-card-overlay {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 1;
  padding: 1.75rem 1.5rem 1.5rem;
  background: linear-gradient(to top, rgba(0, 0, 0, 0.82) 0%, rgba(0, 0, 0, 0.55) 55%, rgba(0, 0, 0, 0) 100%);
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 0.75rem;
  color: var(--color-white);
}

.service-card .service-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  color: var(--color-accent);
  line-height: 1;
}

.service-card h3 {
  margin: 0;
  font-size: 1.1rem;
  font-family: var(--font-body);
  font-weight: 600;
  color: var(--color-white);
  letter-spacing: 0.3px;
}

.service-card-chevron {
  width: 10px;
  height: 10px;
  border-right: 2px solid var(--color-white);
  border-bottom: 2px solid var(--color-white);
  transform: rotate(45deg);
  transition: transform 0.3s ease;
  justify-self: end;
  margin-right: 4px;
  margin-top: -4px;
}

.service-card[aria-expanded="true"] {
  outline: 3px solid var(--color-accent);
  outline-offset: 3px;
}

.service-card[aria-expanded="true"] .service-card-chevron {
  transform: rotate(-135deg);
  margin-top: 4px;
}

.service-panels {
  margin-top: 1.75rem;
}

.service-panel {
  background: var(--color-white);
  color: var(--color-charcoal);
  border-radius: var(--radius);
  padding: 2rem 2.25rem;
  box-shadow: var(--shadow-md);
  animation: service-panel-open 0.35s ease both;
}

.service-panel[hidden] {
  display: none;
}

.service-panel p {
  margin-top: 0;
  font-size: 1.02rem;
}

.service-panel ul {
  margin: 0.75rem 0 0;
  padding-left: 1.25rem;
  line-height: 1.75;
}

.service-panel li {
  margin-bottom: 0.25rem;
}

@keyframes service-panel-open {
  from {
    opacity: 0;
    transform: translateY(-6px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 600px) {
  .service-card {
    aspect-ratio: 16 / 10;
  }

  .service-card-overlay {
    padding: 1.25rem 1rem 1rem;
  }

  .service-panel {
    padding: 1.5rem 1.25rem;
  }
}

/* -----------------------------------------------------------------------------
   Process
   ----------------------------------------------------------------------------- */

.process {
  background: var(--color-charcoal);
  color: var(--color-white);
}

.process h2 {
  color: var(--color-white);
}

.process .section-subtitle {
  color: rgba(255, 255, 255, 0.75);
}

address {
  font-style: normal;
  line-height: 1.8;
  margin-bottom: 1rem;
}

.process-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: start;
}

.process-block {
  margin-bottom: 3rem;
}

.process-block:last-child {
  margin-bottom: 0;
}

.process-block h3 {
  color: var(--color-accent);
  font-size: 1.5rem;
  margin-bottom: 1rem;
}

.process-block p {
  color: rgba(255, 255, 255, 0.85);
  line-height: 1.8;
  margin: 0;
}

@media (max-width: 900px) {
  .process-layout {
    grid-template-columns: 1fr;
  }
}

/* -----------------------------------------------------------------------------
   ADUs
   ----------------------------------------------------------------------------- */

.adus {
  position: relative;
  background-image: url('../images/adus-hero.jpg');
  background-size: cover;
  background-position: center;
  background-attachment: fixed;
  color: var(--color-white);
}

.adus::before {
  content: "";
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.55);
  z-index: 0;
}

.adus > .container {
  position: relative;
  z-index: 1;
}

.adus h2,
.adus .section-subtitle,
.adus-content,
.adus-content h3 {
  color: var(--color-white);
}

.adus-content {
  max-width: 800px;
  margin: 0 auto;
}

.adus-content h3 {
  margin-top: 2rem;
}

.adus-content h3:first-of-type {
  margin-top: 0;
}

/* -----------------------------------------------------------------------------
   Featured Work
   ----------------------------------------------------------------------------- */

.featured-work {
  background: var(--color-white);
}

.work-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
}

.work-card {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius);
  aspect-ratio: 4 / 3;
  background: var(--color-light-gray);
}

.work-card-images {
  position: absolute;
  inset: 0;
}

.work-card-image {
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity 0.7s ease;
}

.work-card-image.active {
  opacity: 1;
}

.work-card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}

.work-card:hover .work-card-image.active img {
  transform: scale(1.04);
}

.work-card-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 1.5rem;
  padding-bottom: 2.25rem;
  background: linear-gradient(transparent, rgba(0, 0, 0, 0.75));
  color: var(--color-white);
  z-index: 2;
  pointer-events: none;
}

.work-card-overlay h3 {
  font-size: 1.15rem;
  margin-bottom: 0.25rem;
}

.work-card-overlay p {
  font-size: 0.85rem;
  opacity: 0.9;
  margin: 0;
}

.work-card-arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: rgba(0, 0, 0, 0.55);
  color: var(--color-white);
  border: none;
  cursor: pointer;
  font-size: 1.4rem;
  line-height: 1;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity 0.25s ease, background 0.25s ease;
  z-index: 3;
  padding: 0;
}

.work-card-arrow:hover {
  background: rgba(0, 0, 0, 0.8);
}

.work-card-arrow.prev { left: 0.5rem; }
.work-card-arrow.next { right: 0.5rem; }

.work-card:hover .work-card-arrow,
.work-card:focus-within .work-card-arrow {
  opacity: 1;
}

@media (hover: none) {
  .work-card-arrow { opacity: 1; }
}

.work-card-dots {
  position: absolute;
  bottom: 0.6rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 6px;
  z-index: 3;
}

.work-card-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.45);
  border: none;
  cursor: pointer;
  padding: 0;
  transition: background 0.3s ease, transform 0.2s ease;
}

.work-card-dot:hover {
  background: rgba(255, 255, 255, 0.8);
}

.work-card-dot.active {
  background: var(--color-white);
  transform: scale(1.2);
}

.work-card-single .work-card-arrow,
.work-card-single .work-card-dots {
  display: none;
}

.work-cta {
  text-align: center;
  margin-top: 3rem;
}

.btn {
  display: inline-block;
  padding: 1rem 2.5rem;
  border-radius: var(--radius);
  text-decoration: none;
  font-size: 0.95rem;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  transition: background var(--transition), color var(--transition), border-color var(--transition), transform var(--transition);
  font-weight: 600;
  border: 2px solid transparent;
  cursor: pointer;
  font-family: var(--font-body);
}

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

.btn-primary:hover {
  background: var(--color-accent-hover);
  border-color: var(--color-accent-hover);
  color: var(--color-white);
}

.btn-outline {
  border: 2px solid var(--color-charcoal);
  color: var(--color-charcoal);
  background: transparent;
}

.btn-outline:hover {
  background: var(--color-charcoal);
  color: var(--color-white);
}

/* -----------------------------------------------------------------------------
   Testimonials
   ----------------------------------------------------------------------------- */

.testimonials {
  position: relative;
  background-image: url('../images/testimonials-hero.jpg');
  background-size: cover;
  background-position: center;
  background-attachment: fixed;
}

.testimonials::before {
  content: "";
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.55);
  z-index: 0;
}

.testimonials > .container {
  position: relative;
  z-index: 1;
}

.testimonials h2,
.testimonials .section-subtitle {
  color: var(--color-white);
}

.testimonial-carousel {
  position: relative;
  overflow: hidden;
  max-width: 900px;
  margin: 0 auto;
}

.testimonial-track {
  display: flex;
  transition: transform 0.5s ease;
}

.testimonial-slide {
  min-width: 100%;
  padding: 0 1rem;
  box-sizing: border-box;
}

.testimonial-card {
  background: var(--color-white);
  padding: 2.5rem;
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
}

.testimonial-card blockquote {
  font-style: italic;
  font-size: 1.05rem;
  line-height: 1.8;
  margin: 0 0 1.5rem;
  padding-top: 1.5rem;
  color: var(--color-ink);
  position: relative;
  quotes: none;
}

.testimonial-card blockquote::before {
  content: "\201C";
  font-size: 4rem;
  color: var(--color-accent);
  opacity: 0.4;
  position: absolute;
  top: -0.35em;
  left: -5px;
  line-height: 1;
  font-family: Georgia, serif;
}

.testimonial-card footer {
  font-weight: 600;
  color: var(--color-ink);
}

.testimonial-card .client-project {
  font-size: 0.85rem;
  color: var(--color-ink-muted);
  font-weight: 400;
}

.testimonial-nav {
  display: flex;
  justify-content: center;
  gap: 1rem;
  margin-top: 2rem;
}

.testimonial-nav button {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  border: 2px solid var(--color-white);
  background: transparent;
  cursor: pointer;
  font-size: 1.2rem;
  color: var(--color-white);
  transition: background var(--transition), color var(--transition);
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.testimonial-nav button:hover:not(:disabled) {
  background: var(--color-white);
  color: var(--color-charcoal);
}

.testimonial-nav button:disabled {
  opacity: 0.3;
  cursor: not-allowed;
}

.testimonial-dots {
  display: flex;
  justify-content: center;
  gap: 0.5rem;
  margin-top: 1rem;
}

.testimonial-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.4);
  border: none;
  cursor: pointer;
  padding: 0;
  transition: background var(--transition);
}

.testimonial-dot.active {
  background: var(--color-white);
}

/* -----------------------------------------------------------------------------
   Contact
   ----------------------------------------------------------------------------- */

.contact {
  background: var(--color-white);
}

.contact-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
}

.contact-info h3 {
  color: var(--color-accent);
  margin-bottom: 0.5rem;
}

.contact-details {
  list-style: none;
  padding: 0;
  margin: 0;
}

.contact-details li {
  padding: 0.75rem 0;
  border-bottom: 1px solid var(--color-light-gray);
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
}

.contact-details li:last-child {
  border-bottom: none;
}

.contact-details a {
  color: var(--color-ink);
  text-decoration: none;
  transition: color var(--transition);
}

.contact-details a:hover {
  color: var(--color-accent);
}

.contact-map {
  border-radius: var(--radius);
  overflow: hidden;
  min-height: 350px;
}

.contact-map iframe {
  width: 100%;
  height: 100%;
  min-height: 350px;
  border: none;
  display: block;
}

/* -----------------------------------------------------------------------------
   Footer
   ----------------------------------------------------------------------------- */

.site-footer {
  background: var(--color-charcoal-dark);
  color: rgba(255, 255, 255, 0.7);
  padding: 3rem 0;
  text-align: center;
}

.footer-brand {
  font-family: var(--font-heading);
  font-size: 1.2rem;
  color: var(--color-white);
  letter-spacing: 2px;
  margin-bottom: 0.5rem;
}

.footer-tagline {
  font-size: 0.85rem;
  margin-bottom: 1.5rem;
  opacity: 0.7;
}

.social-links {
  display: flex;
  justify-content: center;
  gap: 1.5rem;
  margin-bottom: 1.5rem;
  list-style: none;
  padding: 0;
  margin-top: 0;
}

.social-links a {
  color: rgba(255, 255, 255, 0.6);
  font-size: 1.3rem;
  transition: color var(--transition);
  text-decoration: none;
}

.social-links a:hover {
  color: var(--color-accent);
}

.footer-copy {
  font-size: 0.8rem;
  opacity: 0.5;
  margin: 0;
}

/* -----------------------------------------------------------------------------
   Work page — Gallery
   ----------------------------------------------------------------------------- */

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1.5rem;
}

.gallery-item {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius);
  cursor: pointer;
  aspect-ratio: 4 / 3;
  border: none;
  padding: 0;
  background: none;
  display: block;
  width: 100%;
  text-align: left;
}

.gallery-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}

.gallery-item:hover img,
.gallery-item:focus-visible img {
  transform: scale(1.05);
}

.gallery-item-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 1rem;
  background: linear-gradient(transparent, rgba(0, 0, 0, 0.7));
  color: var(--color-white);
  pointer-events: none;
}

.project-list-section {
  background: var(--color-offwhite);
}

.project-list-section details {
  margin-bottom: 1rem;
  background: var(--color-white);
  border-radius: var(--radius);
  overflow: hidden;
}

.project-list-section summary {
  padding: 1.25rem 1.5rem;
  font-weight: 600;
  font-size: 1.1rem;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: background var(--transition);
  list-style: none;
}

.project-list-section summary::-webkit-details-marker {
  display: none;
}

.project-list-section summary::marker {
  display: none;
  content: "";
}

.project-list-section summary::after {
  content: "";
  width: 0.5rem;
  height: 0.5rem;
  border-right: 2px solid var(--color-charcoal);
  border-bottom: 2px solid var(--color-charcoal);
  transform: rotate(45deg);
  transition: transform var(--transition);
  flex-shrink: 0;
  margin-left: 1rem;
}

.project-list-section summary:hover {
  background: var(--color-light-gray);
}

.project-list-section details[open] summary {
  border-bottom: 1px solid var(--color-light-gray);
}

.project-list-section details[open] summary::after {
  transform: rotate(-135deg);
}

.project-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.project-list li {
  padding: 0.75rem 1.5rem;
  border-bottom: 1px solid var(--color-light-gray);
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem;
  align-items: baseline;
}

.project-list li:last-child {
  border-bottom: none;
}

.project-name {
  font-weight: 500;
}

.project-location {
  color: var(--color-ink-muted);
  font-size: 0.9rem;
}

.project-status {
  font-size: 0.85rem;
  color: var(--color-accent);
  font-style: italic;
}

/* -----------------------------------------------------------------------------
   Lightbox
   ----------------------------------------------------------------------------- */

.lightbox-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.9);
  z-index: 2000;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 2rem;
}

.lightbox-overlay.active {
  display: flex;
}

.lightbox-overlay img {
  max-width: 90vw;
  max-height: 90vh;
  object-fit: contain;
  border-radius: var(--radius);
}

.lightbox-close {
  position: absolute;
  top: 1.5rem;
  right: 1.5rem;
  color: var(--color-white);
  font-size: 2rem;
  background: none;
  border: none;
  cursor: pointer;
  z-index: 2001;
  line-height: 1;
  padding: 0.25rem;
}

/* -----------------------------------------------------------------------------
   Scroll animations
   ----------------------------------------------------------------------------- */

.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* -----------------------------------------------------------------------------
   Main offset for fixed nav
   ----------------------------------------------------------------------------- */

main {
  padding-top: 70px;
}

/* -----------------------------------------------------------------------------
   Responsive
   ----------------------------------------------------------------------------- */

@media (max-width: 768px) {
  .section h2 {
    font-size: 2rem;
  }

  .section {
    padding: 3.5rem 0;
  }

  .hero h1 {
    font-size: 2.5rem;
  }

  .contact-layout {
    grid-template-columns: 1fr;
  }
}