:root {
  /* Brand Greens */
  --color-green-950: #0D2B0E;
  --color-green-900: #1B5E20;
  --color-green-800: #2E7D32;
  --color-green-700: #388E3C;
  --color-green-200: #A5D6A7;
  --color-green-100: #C8E6C9;
  --color-green-50: #E8F5E9;

  /* Warm Earth Accent */
  --color-gold-700: #8B6914;
  --color-gold-500: #C49A28;
  --color-gold-100: #FDF3D0;

  /* Neutrals */
  --color-stone-900: #1C1917;
  --color-stone-800: #292524;
  --color-stone-700: #44403C;
  --color-stone-500: #78716C;
  --color-stone-400: #A8A29E;
  --color-stone-300: #D6D3D1;
  --color-stone-200: #E7E5E4;
  --color-stone-100: #F5F5F4;
  --color-stone-50: #FAFAF9;

  /* System */
  --color-white: #FFFFFF;
  --color-error: #DC2626;
  --color-success: #16A34A;

  /* Typography */
  --font-sans: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;

  /* Radii */
  --radius-sm: 4px;
  --radius-md: 6px;
  --radius-lg: 8px;
  --radius-xl: 12px;

  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.07);
  --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);

  /* Motion */
  --duration-fast: 150ms;
  --duration-normal: 200ms;
  --duration-slow: 300ms;
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}

/* Skip link */
.skip-link {
  position: absolute;
  top: -100%;
  left: 16px;
  z-index: 100;
  background: var(--color-green-900);
  color: var(--color-white);
  padding: 8px 16px;
  border-radius: var(--radius-md);
  font-weight: 600;
  transition: top var(--duration-fast) ease-in-out;
}
.skip-link:focus {
  top: 8px;
}

/* Buttons */
.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background-color: var(--color-green-900);
  color: var(--color-white);
  font-weight: 600;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  transition: background-color var(--duration-fast) ease-in-out,
              box-shadow var(--duration-fast) ease-in-out,
              transform var(--duration-fast) ease-in-out;
  text-decoration: none;
  cursor: pointer;
  border: none;
  min-height: 48px;
  padding: 12px 32px;
  font-size: 1rem;
}
.btn-primary:hover {
  background-color: var(--color-green-800);
  box-shadow: var(--shadow-md);
  transform: translateY(-1px);
}
.btn-primary:focus-visible {
  outline: 2px solid var(--color-green-800);
  outline-offset: 2px;
}
.btn-primary:active {
  background-color: var(--color-green-950);
  transform: translateY(0);
  box-shadow: var(--shadow-sm);
}
@media (min-width: 768px) {
  .btn-primary {
    padding: 16px 40px;
    font-size: 1.125rem;
    min-height: 56px;
  }
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  color: var(--color-green-800);
  font-weight: 600;
  border-radius: var(--radius-lg);
  border: 2px solid var(--color-green-800);
  transition: background-color var(--duration-fast) ease-in-out,
              border-color var(--duration-fast) ease-in-out;
  text-decoration: none;
  cursor: pointer;
  min-height: 44px;
  padding: 10px 24px;
  font-size: 1rem;
}
.btn-secondary:hover {
  background-color: var(--color-green-50);
  border-color: var(--color-green-700);
}
.btn-secondary:focus-visible {
  outline: 2px solid var(--color-green-800);
  outline-offset: 2px;
}
.btn-secondary:active {
  background-color: var(--color-green-100);
}
@media (min-width: 768px) {
  .btn-secondary {
    padding: 12px 32px;
    min-height: 48px;
  }
}

/* Ghost link for inline CTAs */
.cta-ghost {
  color: var(--color-green-800);
  font-weight: 600;
  text-decoration: none;
  transition: text-decoration var(--duration-fast) ease-in-out;
  padding: 8px 0;
  display: inline-block;
  min-height: 44px;
  line-height: 28px;
}
.cta-ghost:hover {
  text-decoration: underline;
}
.cta-ghost:focus-visible {
  outline: 2px solid var(--color-green-800);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}

/* Cards */
.card {
  background: var(--color-white);
  border: 1px solid var(--color-stone-200);
  border-radius: var(--radius-lg);
  padding: 24px;
  transition: box-shadow var(--duration-fast) ease-in-out,
              border-color var(--duration-fast) ease-in-out;
}
.card:hover {
  box-shadow: var(--shadow-md);
  border-color: var(--color-green-200);
}

/* Section defaults */
.section {
  padding: 48px 0;
}
@media (min-width: 768px) {
  .section {
    padding: 64px 0;
  }
}
@media (min-width: 1024px) {
  .section {
    padding: 80px 0;
  }
}

.section-alt {
  background-color: var(--color-stone-50);
}
.section-brand {
  background-color: var(--color-green-50);
}
.section-dark {
  background-color: var(--color-green-900);
  color: var(--color-white);
}

/* Container */
.container-capped {
  max-width: 1440px;
  margin: 0 auto;
  padding: 0 16px;
}
@media (min-width: 768px) {
  .container-capped {
    padding: 0 24px;
  }
}
@media (min-width: 1024px) {
  .container-capped {
    padding: 0 32px;
  }
}

/* CTA Banner */
.cta-banner {
  background-color: var(--color-green-900);
  color: var(--color-white);
  padding: 64px 0;
  text-align: center;
}

/* Logo */
.logo-link {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--color-green-800);
  text-decoration: none;
}

/* Nav */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: var(--color-white);
  transition: box-shadow var(--duration-fast) ease-in-out,
              background-color var(--duration-fast) ease-in-out;
}
.site-header.scrolled {
  box-shadow: var(--shadow-md);
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(8px);
}

/* Mobile menu */
.nav-overlay {
  display: none;
  position: fixed;
  top: 64px;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--color-white);
  z-index: 49;
  overflow-y: auto;
  box-shadow: var(--shadow-lg);
}
.nav-overlay.open {
  display: block;
}
@media (min-width: 768px) {
  .nav-overlay {
    display: none !important;
  }
}

body.nav-open {
  overflow: hidden;
}

/* Gallery */
.gallery-img {
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border-radius: var(--radius-lg);
  cursor: pointer;
  transition: opacity var(--duration-fast) ease-in-out;
  width: 100%;
}
.gallery-img:hover {
  opacity: 0.9;
}

/* Filter tabs */
.filter-tab {
  padding: 8px 20px;
  border-radius: 9999px;
  font-weight: 500;
  font-size: 0.875rem;
  border: none;
  cursor: pointer;
  transition: background-color var(--duration-fast) ease-in-out,
              color var(--duration-fast) ease-in-out;
  min-height: 44px;
  background-color: var(--color-stone-200);
  color: var(--color-stone-700);
}
.filter-tab:hover {
  background-color: var(--color-stone-300);
}
.filter-tab.active {
  background-color: var(--color-green-800);
  color: var(--color-white);
}
.filter-tab:focus-visible {
  outline: 2px solid var(--color-green-800);
  outline-offset: 2px;
}

/* Lightbox dialog */
.lightbox-dialog {
  border: none;
  padding: 0;
  background: transparent;
  max-width: none;
  max-height: none;
  width: 100%;
  height: 100%;
}
.lightbox-dialog::backdrop {
  background: rgba(0, 0, 0, 0.8);
}
.lightbox-dialog .lightbox-content {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: 100%;
  position: relative;
}
.lightbox-dialog img {
  max-height: 90vh;
  max-width: 90vw;
  object-fit: contain;
  border-radius: var(--radius-lg);
}
.lightbox-close {
  position: absolute;
  top: 16px;
  right: 16px;
  width: 44px;
  height: 44px;
  background: var(--color-white);
  border: none;
  border-radius: 9999px;
  font-size: 1.5rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-md);
  color: var(--color-stone-800);
  z-index: 1;
}
.lightbox-close:hover {
  background: var(--color-stone-100);
}
.lightbox-close:focus-visible {
  outline: 2px solid var(--color-green-800);
  outline-offset: 2px;
}

/* Footer */
.site-footer {
  background-color: var(--color-green-900);
  color: var(--color-white);
  padding: 48px 0 24px;
}
.site-footer a {
  color: rgba(255, 255, 255, 0.85);
  text-decoration: none;
  transition: opacity var(--duration-fast) ease-in-out,
              text-decoration var(--duration-fast) ease-in-out;
  padding: 8px 0;
  display: inline-block;
  min-height: 44px;
  line-height: 28px;
}
.site-footer a:hover {
  opacity: 1;
  text-decoration: underline;
}
.site-footer a:focus-visible {
  outline: 2px solid var(--color-white);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}

/* Empty state */
.empty-state {
  text-align: center;
  padding: 64px 16px;
  color: var(--color-stone-500);
}

/* Value cards */
.value-card {
  text-align: center;
  padding: 32px 24px;
}
.value-card .value-icon {
  font-size: 2.5rem;
  margin-bottom: 16px;
  display: block;
}
.value-card h3 {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-stone-800);
  margin-bottom: 8px;
}
.value-card p {
  font-size: 0.875rem;
  color: var(--color-stone-700);
}

/* Active nav link */
.nav-link {
  color: var(--color-stone-700);
  font-weight: 500;
  text-decoration: none;
  transition: color var(--duration-fast) ease-in-out;
  padding: 12px 0;
  display: block;
  font-size: 1.125rem;
  min-height: 44px;
}
.nav-link:hover {
  color: var(--color-green-700);
}
.nav-link:focus-visible {
  outline: 2px solid var(--color-green-800);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}
.nav-link.active {
  color: var(--color-green-800);
  font-weight: 700;
}
@media (min-width: 768px) {
  .nav-link {
    padding: 8px 0;
    font-size: 1rem;
    display: inline;
    line-height: 28px;
  }
  .nav-link.active {
    border-bottom: 2px solid var(--color-green-800);
  }
}

/* Hamburger */
.hamburger {
  width: 44px;
  height: 44px;
  background: none;
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  color: var(--color-stone-800);
}
.hamburger:focus-visible {
  outline: 2px solid var(--color-green-800);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}
.hamburger .icon-close {
  display: none;
}
.hamburger[aria-expanded="true"] .icon-menu {
  display: none;
}
.hamburger[aria-expanded="true"] .icon-close {
  display: block;
}

/* Service card icon */
.service-icon {
  font-size: 2rem;
  margin-bottom: 12px;
  display: block;
}

/* Testimonial */
.testimonial-quote {
  font-size: 1.25rem;
  font-style: italic;
  color: var(--color-stone-700);
  max-width: 36rem;
  margin: 0 auto;
  text-align: center;
}

/* Hero */
.hero {
  min-height: 80vh;
  display: flex;
  align-items: center;
  position: relative;
  background-color: var(--color-stone-900);
}
.hero-content {
  color: var(--color-white);
  text-align: center;
  padding: 80px 0;
}
.hero-content h1 {
  font-size: 2.25rem;
  font-weight: 800;
  line-height: 1.15;
  margin-bottom: 16px;
}
.hero-content p {
  font-size: 1.125rem;
  opacity: 0.9;
  margin-bottom: 32px;
  max-width: 32rem;
  margin-left: auto;
  margin-right: auto;
}
@media (min-width: 768px) {
  .hero-content h1 {
    font-size: 3rem;
    line-height: 1.1;
  }
  .hero-content p {
    font-size: 1.25rem;
  }
}

/* Page header (non-hero) */
.page-header {
  background-color: var(--color-green-50);
  padding: 64px 0;
  text-align: center;
}
.page-header h1 {
  font-size: 1.875rem;
  font-weight: 700;
  color: var(--color-stone-800);
  margin-bottom: 12px;
}
.page-header p {
  font-size: 1.125rem;
  color: var(--color-stone-700);
  max-width: 36rem;
  margin: 0 auto;
}
@media (min-width: 768px) {
  .page-header {
    padding: 80px 0;
  }
  .page-header h1 {
    font-size: 2.25rem;
  }
}

/* Service grid responsiveness */
.service-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
}
@media (min-width: 768px) {
  .service-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}
@media (min-width: 1024px) {
  .service-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* Gallery grid */
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}
@media (min-width: 768px) {
  .gallery-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}
@media (min-width: 1024px) {
  .gallery-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

/* Contact row */
.contact-row {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 12px 0;
  min-height: 48px;
  color: var(--color-stone-700);
  text-decoration: none;
}
.contact-row:hover {
  color: var(--color-stone-800);
}
a.contact-row:focus-visible {
  outline: 2px solid var(--color-green-800);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}
.contact-row .contact-icon {
  font-size: 1.5rem;
  flex-shrink: 0;
  width: 32px;
  text-align: center;
}

/* About story layout */
.about-story {
  display: flex;
  flex-direction: column;
  gap: 32px;
}
@media (min-width: 768px) {
  .about-story {
    flex-direction: row;
    align-items: center;
  }
  .about-story > * {
    flex: 1;
  }
}
.about-photo-placeholder {
  width: 100%;
  max-width: 400px;
  aspect-ratio: 1;
  background: var(--color-stone-200);
  border-radius: var(--radius-xl);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 4rem;
  color: var(--color-stone-400);
  margin: 0 auto;
}

/* Check list */
.check-list {
  list-style: none;
  padding: 0;
}
.check-list li {
  padding: 8px 0;
  padding-left: 32px;
  position: relative;
  color: var(--color-stone-700);
}
.check-list li::before {
  content: '\2713';
  position: absolute;
  left: 0;
  color: var(--color-green-800);
  font-weight: 700;
}

/* Filter bar */
.filter-bar {
  display: flex;
  flex-wrap: nowrap;
  gap: 8px;
  overflow-x: auto;
  padding: 8px 0 16px;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
}
.filter-bar::-webkit-scrollbar {
  display: none;
}

/* Quote hero */
.quote-hero {
  background-color: var(--color-green-50);
  padding: 80px 0;
  text-align: center;
}
.quote-hero h1 {
  font-size: 2.25rem;
  font-weight: 700;
  color: var(--color-stone-800);
  margin-bottom: 16px;
}
.quote-hero p {
  font-size: 1.125rem;
  color: var(--color-stone-700);
  margin-bottom: 32px;
  max-width: 32rem;
  margin-left: auto;
  margin-right: auto;
}
@media (min-width: 768px) {
  .quote-hero {
    padding: 96px 0;
  }
  .quote-hero h1 {
    font-size: 3rem;
  }
}