@font-face {
  font-family: 'Newsreader';
  font-style: normal;
  font-weight: 500;
  font-display: swap;
  src: url(/assets/fonts/newsreader-500-0.woff2) format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
  font-family: 'Newsreader';
  font-style: normal;
  font-weight: 600;
  font-display: swap;
  src: url(/assets/fonts/newsreader-600-1.woff2) format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
  font-family: 'Plus Jakarta Sans';
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url(/assets/fonts/plus-jakarta-sans-400-2.woff2) format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
  font-family: 'Plus Jakarta Sans';
  font-style: normal;
  font-weight: 500;
  font-display: swap;
  src: url(/assets/fonts/plus-jakarta-sans-500-3.woff2) format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
  font-family: 'Plus Jakarta Sans';
  font-style: normal;
  font-weight: 600;
  font-display: swap;
  src: url(/assets/fonts/plus-jakarta-sans-600-4.woff2) format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
  font-family: 'Plus Jakarta Sans';
  font-style: normal;
  font-weight: 700;
  font-display: swap;
  src: url(/assets/fonts/plus-jakarta-sans-700-5.woff2) format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}

/* RemaSecure Editorial Design System — Self-Hosted Production Stylesheet
   Strict CSP compatible (style-src 'self'; script-src 'self') */

:root {
  --navy-950: #081221;
  --navy-900: #0d1c32;
  --navy-800: #162944;
  --navy-700: #233b5e;
  --offwhite: #f8fafc;
  --surface: #ffffff;
  --surface-subtle: #f1f5f9;
  --surface-warm: #f5f4f0;
  --charcoal: #1e293b;
  --slate-700: #334155;
  --slate-600: #475569;
  --slate-500: #64748b;
  --border-muted: #e2e8f0;
  --border-strong: #cbd5e1;
  --teal-700: #00544d;
  --teal-600: #006a61;
  --teal-500: #0d8278;
  --teal-100: #e6f4f2;
  --teal-50: #f2fbf9;
  --error-700: #b91c1c;
  --error-50: #fef2f2;
  --font-serif: "Newsreader", Georgia, Cambria, "Times New Roman", Times, serif;
  --font-sans: "Plus Jakarta Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  --max-w: 1200px;
  --radius-sm: 3px;
  --radius-md: 6px;
  --shadow-xs: 0 1px 2px rgba(13, 28, 50, 0.05);
  --shadow-sm: 0 4px 12px rgba(13, 28, 50, 0.06);
  --shadow-md: 0 12px 28px rgba(13, 28, 50, 0.10);
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

body {
  margin: 0;
  background-color: var(--offwhite);
  color: var(--charcoal);
  font-family: var(--font-sans);
  font-size: 1.0625rem;
  line-height: 1.68;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  -webkit-font-smoothing: antialiased;
}

main {
  flex: 1 0 auto;
}

/* Skip link for keyboard accessibility */
.skip-link {
  position: absolute;
  top: -100px;
  left: 1rem;
  background: var(--navy-900);
  color: #ffffff;
  padding: 0.65rem 1.1rem;
  font-size: 0.9rem;
  font-weight: 600;
  border-radius: var(--radius-sm);
  z-index: 1000;
  text-decoration: none;
}
.skip-link:focus {
  top: 0.75rem;
  outline: 3px solid var(--teal-600);
  outline-offset: 2px;
}

/* Focus visibility (WCAG AA) */
a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible,
summary:focus-visible {
  outline: 2px solid var(--teal-600);
  outline-offset: 2px;
}

/* Typography */
h1, h2, h3, h4 {
  margin-top: 0;
  color: var(--navy-900);
  font-family: var(--font-serif);
  font-weight: 500;
  letter-spacing: -0.015em;
}

h1 {
  font-size: clamp(2.25rem, 4.2vw, 3.45rem);
  line-height: 1.14;
  margin-bottom: 1.25rem;
}

h2 {
  font-size: clamp(1.65rem, 2.8vw, 2.35rem);
  line-height: 1.22;
  margin-bottom: 1rem;
}

h3 {
  font-size: clamp(1.25rem, 1.8vw, 1.5rem);
  line-height: 1.32;
  margin-bottom: 0.65rem;
}

p {
  margin-top: 0;
  margin-bottom: 1.15rem;
  color: var(--slate-700);
}

a {
  color: var(--teal-600);
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
  transition: color 140ms ease;
}
a:hover {
  color: var(--navy-900);
}

/* Layout Containers */
.container {
  width: 100%;
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 1.5rem;
}
@media (min-width: 768px) {
  .container {
    padding: 0 2.5rem;
  }
}

.prose-narrow {
  max-width: 44rem;
}

.prose-article {
  max-width: 46rem;
}

/* Header & Shared Navigation */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: rgba(255, 255, 255, 0.97);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border-muted);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 4.5rem;
  gap: 1.25rem;
}

.brand-wordmark {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  font-family: var(--font-serif);
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--navy-900);
  text-decoration: none;
  letter-spacing: -0.02em;
}
.brand-wordmark:hover {
  color: var(--navy-900);
}
.brand-dot {
  width: 0.5rem;
  height: 0.5rem;
  border-radius: 999px;
  background-color: var(--teal-600);
  display: inline-block;
}

.desktop-nav {
  display: none;
  align-items: center;
  gap: 0.25rem;
}
@media (min-width: 980px) {
  .desktop-nav {
    display: flex;
  }
}

.nav-item {
  position: relative;
}

.nav-link,
.nav-dropdown-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.55rem 0.85rem;
  font-family: var(--font-sans);
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--charcoal);
  background: transparent;
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  text-decoration: none;
  line-height: 1.3;
}
.nav-link:hover,
.nav-dropdown-btn:hover,
.nav-link[aria-current="page"],
.nav-dropdown-btn[data-active="true"] {
  color: var(--teal-600);
  background-color: var(--offwhite);
}
.nav-link[aria-current="page"],
.nav-dropdown-btn[data-active="true"] {
  font-weight: 600;
}

.caret-icon {
  width: 0.75rem;
  height: 0.75rem;
  transition: transform 150ms ease;
}
.nav-dropdown-btn[aria-expanded="true"] .caret-icon {
  transform: rotate(180deg);
}

.dropdown-panel {
  position: absolute;
  top: calc(100% + 0.35rem);
  left: 0;
  min-width: 16.5rem;
  background: var(--surface);
  border: 1px solid var(--border-muted);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  padding: 0.45rem;
  display: none;
  z-index: 120;
}
.dropdown-panel.is-open {
  display: block;
}

.dropdown-link {
  display: block;
  padding: 0.6rem 0.85rem;
  border-radius: var(--radius-sm);
  text-decoration: none;
  color: var(--charcoal);
  font-size: 0.925rem;
  font-weight: 500;
  line-height: 1.35;
}
.dropdown-link:hover,
.dropdown-link[aria-current="page"] {
  background-color: var(--teal-50);
  color: var(--teal-700);
}
.dropdown-link-sub {
  display: block;
  font-size: 0.78rem;
  font-weight: 400;
  color: var(--slate-500);
  margin-top: 0.1rem;
}
.dropdown-divider {
  height: 1px;
  background-color: var(--border-muted);
  margin: 0.35rem 0;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.header-cta {
  display: none;
}
@media (min-width: 640px) {
  .header-cta {
    display: inline-flex;
  }
}

.mobile-menu-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.5rem 0.85rem;
  background: var(--surface);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  color: var(--navy-900);
  font-family: var(--font-sans);
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
}
@media (min-width: 980px) {
  .mobile-menu-btn {
    display: none;
  }
}

.mobile-drawer {
  display: none;
  background: var(--surface);
  border-top: 1px solid var(--border-muted);
  padding: 1.25rem 1.5rem 1.75rem;
}
.mobile-drawer.is-open {
  display: block;
}
@media (min-width: 980px) {
  .mobile-drawer {
    display: none !important;
  }
}

.mobile-group {
  border-bottom: 1px solid var(--border-muted);
  padding: 0.65rem 0;
}
.mobile-group-btn {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: none;
  border: none;
  padding: 0.45rem 0;
  font-family: var(--font-sans);
  font-size: 1rem;
  font-weight: 600;
  color: var(--navy-900);
  cursor: pointer;
  text-align: left;
}
.mobile-group-links {
  display: none;
  padding: 0.35rem 0 0.5rem 0.85rem;
  border-left: 2px solid var(--teal-600);
  margin-top: 0.35rem;
}
.mobile-group-links.is-open {
  display: block;
}
.mobile-link {
  display: block;
  padding: 0.45rem 0;
  color: var(--slate-700);
  text-decoration: none;
  font-size: 0.95rem;
  font-weight: 500;
}
.mobile-link:hover,
.mobile-link[aria-current="page"] {
  color: var(--teal-600);
}
.mobile-direct-link {
  display: block;
  padding: 0.8rem 0;
  border-bottom: 1px solid var(--border-muted);
  font-size: 1rem;
  font-weight: 600;
  color: var(--navy-900);
  text-decoration: none;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.8rem 1.45rem;
  font-family: var(--font-sans);
  font-size: 0.95rem;
  font-weight: 600;
  line-height: 1.3;
  border-radius: var(--radius-sm);
  text-decoration: none;
  cursor: pointer;
  transition: background-color 150ms ease, color 150ms ease, border-color 150ms ease;
  border: 1px solid transparent;
}
.btn-sm {
  padding: 0.55rem 1rem;
  font-size: 0.875rem;
}
.btn-primary {
  background-color: var(--navy-900);
  color: #ffffff;
}
.btn-primary:hover {
  background-color: var(--teal-700);
  color: #ffffff;
}
.btn-teal {
  background-color: var(--teal-600);
  color: #ffffff;
}
.btn-teal:hover {
  background-color: var(--teal-700);
  color: #ffffff;
}
.btn-secondary {
  background-color: var(--surface);
  color: var(--navy-900);
  border-color: var(--border-strong);
}
.btn-secondary:hover {
  background-color: var(--surface-subtle);
  border-color: var(--navy-900);
  color: var(--navy-900);
}

.cta-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.9rem;
  margin-top: 1.5rem;
}

.cta-subnote {
  font-size: 0.875rem;
  color: var(--slate-600);
  margin-top: 0.75rem;
  margin-bottom: 0;
  max-width: 38rem;
}

/* Sections & Surfaces */
.section {
  padding: 4.25rem 0;
  border-bottom: 1px solid var(--border-muted);
}
@media (min-width: 768px) {
  .section {
    padding: 5.5rem 0;
  }
}
.section-white {
  background-color: var(--surface);
}
.section-offwhite {
  background-color: var(--offwhite);
}
.section-warm {
  background-color: var(--surface-warm);
}
.section-navy {
  background-color: var(--navy-900);
  color: #ffffff;
  border-bottom: none;
}
.section-navy h1,
.section-navy h2,
.section-navy h3 {
  color: #ffffff;
}
.section-navy p {
  color: #cbd5e1;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-sans);
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--teal-600);
  margin-bottom: 0.9rem;
}
.eyebrow-pill {
  background-color: var(--teal-50);
  border: 1px solid #ccebe6;
  padding: 0.3rem 0.75rem;
  border-radius: var(--radius-sm);
  text-transform: none;
  letter-spacing: 0.01em;
  color: var(--teal-700);
}

.lead {
  font-size: clamp(1.125rem, 1.5vw, 1.275rem);
  line-height: 1.62;
  color: var(--slate-700);
}

/* Grids & Editorial Layouts */
.hero-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.75rem;
  align-items: center;
}
@media (min-width: 960px) {
  .hero-grid {
    grid-template-columns: 7fr 5fr;
    gap: 3.5rem;
  }
}

.grid-2 {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}
@media (min-width: 768px) {
  .grid-2 {
    grid-template-columns: repeat(2, 1fr);
    gap: 2.25rem;
  }
}

.grid-3 {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.75rem;
}
@media (min-width: 860px) {
  .grid-3 {
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
  }
}

.grid-4 {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}
@media (min-width: 640px) {
  .grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }
}
@media (min-width: 1024px) {
  .grid-4 {
    grid-template-columns: repeat(4, 1fr);
  }
}

.split-12 {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
}
@media (min-width: 960px) {
  .split-12 {
    grid-template-columns: 5fr 7fr;
    gap: 3.5rem;
  }
}

.split-contact {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
  align-items: start;
}
@media (min-width: 960px) {
  .split-contact {
    grid-template-columns: 7fr 5fr;
    gap: 3.25rem;
  }
}

/* Cards & Editorial Blocks */
.card {
  background: var(--surface);
  border: 1px solid var(--border-muted);
  border-radius: var(--radius-sm);
  padding: 2rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  box-shadow: var(--shadow-xs);
}
.card-subtle {
  background: var(--offwhite);
}
.card-accent {
  border-top: 3px solid var(--teal-600);
}

.editorial-columns {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  border-top: 1px solid var(--border-muted);
  padding-top: 2rem;
}
@media (min-width: 768px) {
  .editorial-columns {
    grid-template-columns: repeat(3, 1fr);
    gap: 2.5rem;
  }
}

.editorial-col {
  border-left: 2px solid var(--teal-600);
  padding-left: 1.25rem;
}

.step-list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.75rem;
  counter-reset: step;
  list-style: none;
  padding: 0;
  margin: 2rem 0;
}
@media (min-width: 640px) {
  .step-list-4 {
    grid-template-columns: repeat(2, 1fr);
  }
}
@media (min-width: 1024px) {
  .step-list-4 {
    grid-template-columns: repeat(4, 1fr);
  }
}

.step-item {
  border-top: 2px solid var(--navy-900);
  padding-top: 1.1rem;
}
.step-num {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--teal-600);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  display: block;
  margin-bottom: 0.4rem;
}

/* Architectural Illustration Panel */
.arch-frame {
  background: var(--surface);
  border: 1px solid var(--border-muted);
  border-radius: var(--radius-sm);
  padding: 1.75rem;
  box-shadow: var(--shadow-sm);
}
.arch-frame-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 1rem;
  margin-bottom: 1.25rem;
  border-bottom: 1px solid var(--border-muted);
}
.arch-tag {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--slate-600);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.arch-row {
  padding: 0.9rem 1rem;
  background: var(--offwhite);
  border: 1px solid var(--border-muted);
  border-left: 3px solid var(--teal-600);
  border-radius: var(--radius-sm);
  margin-bottom: 0.75rem;
}
.arch-row:last-child {
  margin-bottom: 0;
}
.arch-row-title {
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--navy-900);
  margin-bottom: 0.2rem;
}
.arch-row-desc {
  font-size: 0.86rem;
  color: var(--slate-600);
  margin: 0;
}

/* Deliverable Specimen Paper */
.specimen-banner {
  background-color: var(--teal-50);
  border: 1px solid #b5e2dc;
  border-left: 4px solid var(--teal-600);
  padding: 1rem 1.25rem;
  border-radius: var(--radius-sm);
  margin-bottom: 2rem;
  font-weight: 600;
  color: var(--navy-900);
}
.specimen-paper {
  background: var(--surface);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  padding: 2rem;
  box-shadow: var(--shadow-sm);
}
@media (min-width: 768px) {
  .specimen-paper {
    padding: 3rem;
  }
}
.specimen-section {
  padding: 1.5rem 0;
  border-top: 1px solid var(--border-muted);
}
.specimen-fields {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.75rem;
  margin-top: 0.75rem;
}
@media (min-width: 640px) {
  .specimen-fields {
    grid-template-columns: repeat(2, 1fr);
  }
}
.specimen-field {
  background: var(--offwhite);
  border: 1px solid var(--border-muted);
  padding: 0.75rem 1rem;
  border-radius: var(--radius-sm);
  font-size: 0.92rem;
  color: var(--slate-700);
}

/* FAQ Accordion */
.faq-list {
  border-top: 1px solid var(--border-muted);
  max-width: 48rem;
}
.faq-item {
  border-bottom: 1px solid var(--border-muted);
}
.faq-summary {
  padding: 1.35rem 0;
  font-family: var(--font-serif);
  font-size: 1.3rem;
  font-weight: 500;
  color: var(--navy-900);
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}
.faq-summary::-webkit-details-marker {
  display: none;
}
.faq-indicator {
  font-family: var(--font-sans);
  font-size: 1.25rem;
  color: var(--teal-600);
  transition: transform 150ms ease;
}
details[open] .faq-indicator {
  transform: rotate(45deg);
}
.faq-body {
  padding-bottom: 1.35rem;
  color: var(--slate-700);
}

/* Filter Bar (Insights) */
.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin: 1.75rem 0 2.25rem;
}
.filter-btn {
  padding: 0.5rem 1.1rem;
  font-family: var(--font-sans);
  font-size: 0.9rem;
  font-weight: 600;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-strong);
  background: var(--surface);
  color: var(--charcoal);
  cursor: pointer;
}
.filter-btn:hover {
  border-color: var(--navy-900);
}
.filter-btn[aria-pressed="true"] {
  background: var(--navy-900);
  color: #ffffff;
  border-color: var(--navy-900);
}

.badge-category {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--teal-700);
  background: var(--teal-50);
  border: 1px solid #ccebe6;
  padding: 0.2rem 0.6rem;
  border-radius: var(--radius-sm);
  margin-bottom: 0.75rem;
}

/* Single-Column Accessible Enquiry Form */
.form-card {
  background: var(--surface);
  border: 1px solid var(--border-muted);
  border-radius: var(--radius-sm);
  padding: 2rem;
  box-shadow: var(--shadow-xs);
}
@media (min-width: 640px) {
  .form-card {
    padding: 2.5rem;
  }
}
.form-group {
  margin-bottom: 1.4rem;
}
.form-label-row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 0.4rem;
}
.form-label {
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--navy-900);
}
.form-optional {
  font-size: 0.8125rem;
  color: var(--slate-500);
}
.form-control {
  width: 100%;
  padding: 0.75rem 0.9rem;
  font-family: var(--font-sans);
  font-size: 1rem;
  color: var(--charcoal);
  background-color: var(--surface);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  transition: border-color 140ms ease, box-shadow 140ms ease;
}
.form-control:focus {
  border-color: var(--teal-600);
  box-shadow: 0 0 0 3px rgba(0, 106, 97, 0.14);
  outline: none;
}
.form-control[aria-invalid="true"] {
  border-color: var(--error-700);
  background-color: #fffafa;
}
.field-error {
  display: none;
  color: var(--error-700);
  font-size: 0.875rem;
  font-weight: 500;
  margin-top: 0.35rem;
}
.field-error.is-visible {
  display: block;
}
.alert-banner {
  display: none;
  padding: 1rem 1.25rem;
  border-radius: var(--radius-sm);
  margin-bottom: 1.5rem;
  font-size: 0.95rem;
}
.alert-banner.is-visible {
  display: block;
}
.alert-error {
  background-color: var(--error-50);
  border: 1px solid #fecaca;
  border-left: 4px solid var(--error-700);
  color: #7f1d1d;
}
.alert-success {
  background-color: var(--teal-50);
  border: 1px solid #b5e2dc;
  border-left: 4px solid var(--teal-600);
  color: var(--navy-900);
}

/* Breadcrumb */
.breadcrumb {
  font-size: 0.85rem;
  color: var(--slate-500);
  margin-bottom: 1.25rem;
}
.breadcrumb a {
  color: var(--slate-600);
  text-decoration: none;
}
.breadcrumb a:hover {
  color: var(--teal-600);
  text-decoration: underline;
}

/* Footer */
.site-footer {
  background-color: var(--navy-950);
  color: #cbd5e1;
  padding: 4rem 0 2.5rem;
  border-top: 1px solid var(--navy-800);
  font-size: 0.925rem;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.25rem;
  padding-bottom: 3rem;
  border-bottom: 1px solid var(--navy-800);
}
@media (min-width: 768px) {
  .footer-grid {
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 2.5rem;
  }
}
.footer-brand {
  font-family: var(--font-serif);
  font-size: 1.45rem;
  font-weight: 600;
  color: #ffffff;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.75rem;
}
.footer-brand:hover {
  color: #ffffff;
}
.footer-heading {
  font-family: var(--font-sans);
  font-size: 0.78rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: #ffffff;
  margin-bottom: 0.9rem;
}
.footer-links {
  list-style: none;
  padding: 0;
  margin: 0;
}
.footer-links li {
  margin-bottom: 0.55rem;
}
.footer-links a {
  color: #cbd5e1;
  text-decoration: none;
}
.footer-links a:hover {
  color: #ffffff;
  text-decoration: underline;
}
.footer-bottom {
  padding-top: 1.75rem;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  font-size: 0.85rem;
  color: #94a3b8;
}
.hidden {
  display: none !important;
}