:root {
  --navy: #0f2a3f;
  --navy-dark: #0a1d2c;
  --navy-deep: #071520;
  --steel: #3b5b7a;
  --stone: #5c6573;
  --stone-light: #8b94a3;
  --clay: #c9792d;
  --clay-dark: #a8611f;
  --cream: #f7f4ee;
  --cream-warm: #f2ece0;
  --line: #e6ebf0;
  --line-warm: #e0d9cb;
}
html { scroll-behavior: smooth; }
body { font-family: 'Inter', system-ui, sans-serif; color: var(--navy); background: #ffffff; }
.font-display { font-family: 'Archivo', system-ui, sans-serif; letter-spacing: -0.02em; }
.bg-navy { background-color: var(--navy); }
.bg-navy-dark { background-color: var(--navy-dark); }
.bg-navy-deep { background-color: var(--navy-deep); }
.bg-cream { background-color: var(--cream); }
.bg-cream-warm { background-color: var(--cream-warm); }
.text-navy { color: var(--navy); }
.text-stone { color: var(--stone); }
.text-stone-light { color: var(--stone-light); }
.text-clay { color: var(--clay); }
.border-line { border-color: var(--line); }
.border-line-warm { border-color: var(--line-warm); }

.btn-primary { background-color: var(--clay); color: white; padding: 0.875rem 1.5rem; font-weight: 600; font-size: 0.9375rem; display: inline-flex; align-items: center; gap: 0.5rem; transition: background-color 0.2s ease; border-radius: 2px; }
.btn-primary:hover { background-color: var(--clay-dark); }
.btn-secondary { background-color: var(--navy); color: white; padding: 0.875rem 1.5rem; font-weight: 600; font-size: 0.9375rem; display: inline-flex; align-items: center; gap: 0.5rem; transition: background-color 0.2s ease; border-radius: 2px; }
.btn-secondary:hover { background-color: var(--navy-dark); }
.btn-outline-light { background-color: transparent; color: white; padding: 0.875rem 1.5rem; font-weight: 600; font-size: 0.9375rem; border: 1.5px solid rgba(255,255,255,0.35); display: inline-flex; align-items: center; gap: 0.5rem; transition: all 0.2s ease; border-radius: 2px; }
.btn-outline-light:hover { background-color: white; color: var(--navy); border-color: white; }
.btn-outline-dark { background-color: transparent; color: var(--navy); padding: 0.875rem 1.5rem; font-weight: 600; font-size: 0.9375rem; border: 1.5px solid var(--navy); display: inline-flex; align-items: center; gap: 0.5rem; transition: all 0.2s ease; border-radius: 2px; }
.btn-outline-dark:hover { background-color: var(--navy); color: white; }
.link-underline { display: inline-flex; align-items: center; gap: 0.5rem; font-weight: 600; font-size: 0.9375rem; color: var(--navy); border-bottom: 1.5px solid var(--clay); padding-bottom: 3px; transition: gap 0.2s ease; }
.link-underline:hover { gap: 0.75rem; }
.eyebrow { font-family: 'Archivo', sans-serif; font-size: 0.75rem; font-weight: 700; letter-spacing: 0.18em; text-transform: uppercase; color: var(--clay); display: inline-flex; align-items: center; gap: 0.75rem; }
.eyebrow::before { content: ''; width: 32px; height: 1.5px; background: var(--clay); }

details > summary { list-style: none; cursor: pointer; }
details > summary::-webkit-details-marker { display: none; }
details[open] .faq-icon { transform: rotate(45deg); }
.faq-icon { transition: transform 0.2s ease; }

.skip-link { position: absolute; top: -100px; left: 0.5rem; background: var(--clay); color: white; padding: 0.75rem 1rem; z-index: 100; font-weight: 600; border-radius: 2px; transition: top 0.15s ease; }
.skip-link:focus { top: 0.5rem; }

.prose-lpc p { margin-bottom: 1.25rem; }
.prose-lpc h3 { margin-top: 2.5rem; margin-bottom: 0.75rem; }
.prose-lpc ul { margin-bottom: 1.25rem; padding-left: 1.5rem; list-style-type: disc; }
.prose-lpc ul li { margin-bottom: 0.5rem; }

.article-body p { font-size: 1.125rem; line-height: 1.75; color: var(--stone); margin-bottom: 1.5rem; }
.article-body h2 { font-family: 'Archivo', sans-serif; font-weight: 700; font-size: clamp(1.5rem, 2.5vw, 2rem); color: var(--navy); margin-top: 3rem; margin-bottom: 1rem; line-height: 1.15; letter-spacing: -0.02em; }
.article-body h3 { font-family: 'Archivo', sans-serif; font-weight: 700; font-size: 1.25rem; color: var(--navy); margin-top: 2rem; margin-bottom: 0.75rem; line-height: 1.2; }
.article-body ul { margin-bottom: 1.5rem; padding-left: 1.5rem; list-style: disc; color: var(--stone); font-size: 1.125rem; line-height: 1.75; }
.article-body ul li { margin-bottom: 0.5rem; }
.article-body strong { color: var(--navy); }
.article-body a { color: var(--clay); font-weight: 600; }
.article-body a:hover { text-decoration: underline; }
.article-body blockquote { border-left: 3px solid var(--clay); padding-left: 1.25rem; font-style: italic; color: var(--stone); margin: 2rem 0; }

/* Mobile menu */
.mobile-menu { display: none; }
.mobile-menu.open { display: block; }
.mobile-menu a { display: block; }

/* Project image variants — for technical drawings/plans (white space around image) */
.img-contain {
  background-size: contain !important;
  background-repeat: no-repeat !important;
  background-color: var(--cream) !important;
}

/* Primary nav with dropdowns */
.nav-item { position: relative; }
.nav-trigger {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 15px;
  font-weight: 500;
  color: var(--navy);
  background: transparent;
  border: 0;
  padding: 0;
  cursor: pointer;
  font-family: 'Inter', system-ui, sans-serif;
}
.nav-trigger:hover, .nav-item:hover .nav-trigger { color: var(--clay); }
.nav-trigger .chev { transition: transform 0.2s ease; }
.nav-item:hover .nav-trigger .chev { transform: rotate(180deg); }
.nav-trigger:focus-visible { outline: 2px solid var(--clay); outline-offset: 4px; }

.nav-dropdown {
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%) translateY(6px);
  min-width: 280px;
  background: white;
  border: 1px solid var(--line);
  box-shadow: 0 24px 48px -16px rgba(10, 29, 44, 0.18);
  padding: 0.75rem 0;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.18s ease, transform 0.18s ease, visibility 0.18s;
  border-radius: 2px;
  z-index: 60;
}
.nav-item:hover .nav-dropdown,
.nav-item:focus-within .nav-dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
}
.nav-item::after {
  content: '';
  position: absolute;
  left: 0;
  right: 0;
  top: 100%;
  height: 14px;
}

.nav-dropdown-heading {
  font-family: 'Archivo', sans-serif;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--stone-light);
  padding: 0.5rem 1.25rem;
}
.nav-dropdown a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  padding: 0.55rem 1.25rem;
  font-size: 14px;
  font-weight: 500;
  color: var(--navy);
  white-space: nowrap;
}
.nav-dropdown a:hover {
  color: var(--clay);
  background: var(--cream);
}
.nav-dropdown a .arr {
  font-size: 14px;
  opacity: 0;
  transform: translateX(-4px);
  transition: opacity 0.2s ease, transform 0.2s ease;
  color: var(--clay);
}
.nav-dropdown a:hover .arr {
  opacity: 1;
  transform: translateX(0);
}
.nav-dropdown-divider {
  height: 1px;
  background: var(--line);
  margin: 0.5rem 0;
}
.nav-dropdown-footer {
  border-top: 1px solid var(--line);
  margin-top: 0.5rem;
  padding-top: 0.5rem;
}
.nav-dropdown-footer a {
  font-weight: 600;
  color: var(--clay);
}
.nav-dropdown-footer a:hover {
  background: transparent;
  color: var(--clay-dark);
}

/* Mobile dropdown groups */
.mobile-group[open] .mobile-chev { transform: rotate(180deg); }
.mobile-chev { transition: transform 0.2s ease; }