:root {
  color-scheme: light;
  --font-base: "Inter", "Helvetica Neue", Arial, sans-serif;
  --font-heading: "Poppins", "Inter", sans-serif;
  --font-size-base: 16px;
  --line-height-base: 1.65;
  --color-primary: #1464c4;
  --color-secondary: #0fb69f;
  --color-accent: #ff8a3c;
  --color-neutral-50: #f4f6fb;
  --color-neutral-100: #e6ecf7;
  --color-neutral-400: #6c7a92;
  --color-neutral-700: #2b3240;
  --color-neutral-900: #1b1b1f;
  --color-success: #2ebd85;
  --color-danger: #e44848;
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 24px;
  --shadow-sm: 0 2px 6px rgba(20, 100, 196, 0.12);
  --shadow-md: 0 8px 24px rgba(15, 182, 159, 0.14);
  --shadow-lg: 0 18px 60px rgba(30, 48, 80, 0.16);
  --space-2xs: 4px;
  --space-xs: 8px;
  --space-sm: 12px;
  --space-md: 16px;
  --space-lg: 24px;
  --space-xl: 32px;
  --space-2xl: 48px;
  --container-width: min(1080px, 92vw);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: var(--font-base);
  font-size: var(--font-size-base);
  line-height: var(--line-height-base);
  color: var(--color-neutral-900);
  background: var(--color-neutral-50);
  transition: background 0.2s ease, color 0.2s ease;
}

body.theme-contrast {
  background: #0b0f16;
  color: #fdfdfd;
}

body.theme-contrast .site-header,
body.theme-contrast .site-footer {
  background: #111827;
  border-color: rgba(255, 255, 255, 0.1);
  color: #f5f5f5;
}

body.theme-font-lg {
  font-size: 18px;
}

body.theme-underline a,
body.theme-underline .site-nav a {
  text-decoration: underline;
}

body.theme-contrast a {
  color: #8ab9ff;
}

.version-chip {
  position: fixed;
  top: 12px;
  right: 12px;
  z-index: 1100;
  display: inline-flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 2px;
  padding: 6px 12px;
  border-radius: 999px;
  background: rgba(20, 100, 196, 0.12);
  color: var(--color-neutral-900);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.03em;
  backdrop-filter: blur(6px);
  box-shadow: var(--shadow-sm);
}

.version-chip::before {
  content: 'BUILD';
  font-weight: 700;
  color: var(--color-primary);
}

.version-chip__line {
  display: block;
}

.version-chip__tests {
  font-size: 0.7rem;
  font-weight: 500;
  color: var(--color-neutral-700);
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

main,
header,
footer {
  width: 100%;
}

.noscript {
  margin: 0;
  padding: var(--space-sm);
  background: var(--color-danger);
  color: #fff;
  text-align: center;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  backdrop-filter: blur(8px);
  background: rgba(255, 255, 255, 0.96);
  border-bottom: 1px solid rgba(20, 100, 196, 0.08);
}

body.theme-contrast .site-header {
  background: rgba(17, 24, 39, 0.96);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
  margin: 0 auto;
  padding: var(--space-sm) var(--space-md);
  width: var(--container-width);
}

.logo {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.45rem;
  letter-spacing: 0.02em;
  color: var(--color-primary);
  text-decoration: none;
}

.logo span {
  color: #0b7561;
}

.nav-toggle {
  display: none;
  background: none;
  border: 1px solid rgba(20, 100, 196, 0.25);
  border-radius: var(--radius-sm);
  padding: var(--space-xs) var(--space-sm);
  color: inherit;
  cursor: pointer;
}

.nav-toggle__icon {
  display: inline-block;
  width: 1.25rem;
  height: 1.25rem;
  border-top: 2px solid currentColor;
  border-bottom: 2px solid currentColor;
  position: relative;
}

.nav-toggle__icon::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 0;
  width: 100%;
  border-top: 2px solid currentColor;
  transform: translateY(-50%);
}

.site-nav {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.site-nav a {
  font-weight: 500;
  color: var(--color-neutral-700);
  text-decoration: none;
  padding-bottom: 4px;
  border-bottom: 2px solid transparent;
  transition: color 0.2s ease, border-color 0.2s ease;
}

.site-nav a:hover,
.site-nav a:focus,
.site-nav a.is-active {
  color: var(--color-primary);
  border-color: var(--color-primary);
}

.accessibility-controls {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
}

.accessibility-button {
  background: rgba(20, 100, 196, 0.08);
  color: var(--color-neutral-700);
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  padding: 6px 10px;
  font-size: 0.85rem;
  cursor: pointer;
  transition: background 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}

.header-status {
  margin-left: auto;
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-sm);
  font-size: 0.75rem;
  color: var(--color-neutral-400);
}

.sse-indicator {
  display: inline-flex;
  align-items: center;
  padding: 2px 8px;
  border-radius: 999px;
  background: rgba(20, 100, 196, 0.08);
  color: var(--color-neutral-700);
  transition: color 0.2s ease, background 0.2s ease;
}

.sse-indicator--open {
  background: rgba(15, 182, 159, 0.16);
  color: #04584b;
}

.sse-indicator--connecting,
.sse-indicator--retry {
  background: rgba(255, 138, 60, 0.16);
  color: #7c2d12;
}

.sse-indicator--unsupported {
  background: rgba(20, 100, 196, 0.08);
  color: var(--color-neutral-400);
}

.metrics-indicator {
  display: inline-flex;
  align-items: center;
  padding: 4px 10px;
  border-radius: 999px;
  background: rgba(15, 182, 159, 0.16);
  font-size: 0.75rem;
  font-weight: 600;
  color: #04584b;
  white-space: nowrap;
}

body.theme-contrast .metrics-indicator {
  background: rgba(59, 130, 246, 0.22);
  color: #bfdbfe;
}

.accessibility-button[aria-pressed='true'],
.accessibility-button:hover {
  background: rgba(20, 100, 196, 0.16);
  border-color: rgba(20, 100, 196, 0.2);
}

.main-content {
  margin: 0 auto;
  width: var(--container-width);
  padding: var(--space-2xl) var(--space-md) var(--space-2xl);
}

.section {
  background: #fff;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  padding: var(--space-2xl) var(--space-xl);
  margin-bottom: var(--space-2xl);
}

body.theme-contrast .section {
  background: #111827;
  border: 1px solid rgba(255, 255, 255, 0.12);
  box-shadow: none;
}

.hero {
  display: grid;
  gap: var(--space-xl);
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  align-items: center;
}

.hero__eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.2em;
  font-size: 0.8rem;
  color: var(--color-primary);
  margin-bottom: var(--space-xs);
}

.hero__title {
  font-family: var(--font-heading);
  font-size: clamp(2.2rem, 5vw, 2.8rem);
  line-height: 1.1;
  margin: 0 0 var(--space-md);
}

.hero__subtitle {
  margin: 0 0 var(--space-lg);
  color: var(--color-neutral-700);
}

.hero__cta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  margin-bottom: var(--space-lg);
}

.cta-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-xs);
  padding: var(--space-sm) var(--space-lg);
  border-radius: var(--radius-md);
  font-weight: 600;
  text-decoration: none;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.cta-button--primary {
  background: var(--color-primary);
  color: #fff;
  box-shadow: var(--shadow-md);
}

.cta-button--secondary {
  background: var(--color-secondary);
  color: #083a31;
}

.cta-button:hover,
.cta-button:focus {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.feature-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: var(--space-sm);
}

.feature-list li::before {
  content: '✔';
  color: var(--color-success);
  margin-right: var(--space-xs);
}

.metrics {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: var(--space-md);
  margin-top: var(--space-xl);
}

.metric {
  background: var(--color-neutral-100);
  border-radius: var(--radius-md);
  padding: var(--space-lg);
  text-align: center;
}

.metric__value {
  font-family: var(--font-heading);
  font-size: 2rem;
  margin: 0 0 var(--space-xs);
  color: var(--color-primary);
}

.metric__label {
  margin: 0;
  color: var(--color-neutral-700);
  font-weight: 500;
}

.service-grid {
  display: grid;
  gap: var(--space-lg);
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}

.service-grid--compact {
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: var(--space-md);
}

.service-card {
  border-radius: var(--radius-lg);
  border: 1px solid rgba(20, 100, 196, 0.1);
  padding: var(--space-lg);
  background: #fff;
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

body.theme-contrast .service-card {
  background: #0f172a;
  border-color: rgba(255, 255, 255, 0.18);
}

.service-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.service-card__title {
  font-family: var(--font-heading);
  font-size: 1.2rem;
  margin: 0;
}

.service-card--compact {
  padding: var(--space-md);
}

.service-card__description {
  margin: 0;
  color: var(--color-neutral-700);
}

.service-card__tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-xs);
}

.info-grid {
  display: grid;
  gap: var(--space-lg);
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.info-card {
  background: #fff;
  border-radius: var(--radius-md);
  padding: var(--space-lg);
  border: 1px solid rgba(20, 100, 196, 0.1);
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

body.theme-contrast .info-card {
  background: #10192b;
  border-color: rgba(255, 255, 255, 0.18);
}

.accordion-item {
  border: 1px solid rgba(20, 100, 196, 0.14);
  border-radius: var(--radius-md);
  padding: var(--space-sm) var(--space-md);
  background: #fff;
}

body.theme-contrast .accordion-item {
  background: #111827;
  border-color: rgba(255, 255, 255, 0.22);
}

.accordion-item + .accordion-item {
  margin-top: var(--space-sm);
}

.accordion-item summary {
  font-weight: 600;
  cursor: pointer;
  outline: none;
}

.accordion-item[open] summary {
  color: var(--color-primary);
}

.accordion-item p {
  margin: var(--space-sm) 0 0;
}

.blog-card {
  list-style: none;
  border: 1px solid rgba(20, 100, 196, 0.1);
  border-radius: var(--radius-lg);
  background: #fff;
  padding: var(--space-lg);
  display: grid;
  gap: var(--space-sm);
  transition: box-shadow 0.2s ease, transform 0.2s ease;
}

.blog-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-4px);
}

body.theme-contrast .blog-card {
  background: #0f172a;
  border-color: rgba(255, 255, 255, 0.18);
}

.blog-featured {
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  background: linear-gradient(135deg, rgba(20, 100, 196, 0.18), rgba(15, 182, 159, 0.18));
  margin-bottom: var(--space-xl);
  box-shadow: var(--shadow-md);
}

body.theme-contrast .blog-featured {
  background: linear-gradient(135deg, rgba(30, 64, 175, 0.45), rgba(34, 197, 94, 0.3));
}

.blog-featured__content {
  max-width: 720px;
  display: grid;
  gap: var(--space-md);
}

.blog-featured__content h2 {
  font-size: 2rem;
  margin: 0;
}

.blog-featured__content p {
  margin: 0;
}

.blog-card a {
  text-decoration: none;
  color: inherit;
  display: grid;
  gap: var(--space-sm);
}

.blog-card__footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-sm);
  flex-wrap: wrap;
}

.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-xs);
}

.tag--outline {
  background: transparent;
  border: 1px solid rgba(20, 100, 196, 0.25);
  color: var(--color-primary);
}

body.theme-contrast .tag--outline {
  border-color: rgba(255, 255, 255, 0.35);
  color: #dbeafe;
}

.meta {
  color: var(--color-neutral-400);
  font-size: 0.85rem;
  margin: 0;
}

body.theme-contrast .meta {
  color: rgba(203, 213, 225, 0.9);
}

.tag {
  display: inline-flex;
  align-items: center;
  padding: 4px 8px;
  background: rgba(20, 100, 196, 0.12);
  color: var(--color-primary);
  border-radius: var(--radius-sm);
  font-size: 0.75rem;
  font-weight: 600;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  padding: 4px 10px;
  border-radius: 999px;
  background: rgba(15, 182, 159, 0.16);
  color: #04584b;
  font-size: 0.75rem;
  font-weight: 600;
}

.trust-band {
  border-radius: var(--radius-lg);
  background: linear-gradient(135deg, rgba(20, 100, 196, 0.08), rgba(15, 182, 159, 0.16));
  padding: var(--space-lg);
  display: grid;
  gap: var(--space-md);
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.trust-band__item {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}

.trust-band__title {
  margin: 0;
  font-weight: 600;
  color: var(--color-neutral-700);
}

.section__title {
  font-family: var(--font-heading);
  font-size: 1.8rem;
  margin-top: 0;
  margin-bottom: var(--space-md);
}

.section__subtitle {
  margin-top: 0;
  color: var(--color-neutral-700);
}

.layout-split {
  display: grid;
  gap: var(--space-xl);
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  align-items: start;
}

.section--highlight {
  background: linear-gradient(135deg, rgba(20, 100, 196, 0.08), rgba(15, 182, 159, 0.16));
}

.contact-cards {
  display: grid;
  gap: var(--space-lg);
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}

.contact-card {
  padding: var(--space-lg);
  border-radius: var(--radius-lg);
  border: 1px solid rgba(20, 100, 196, 0.12);
  background: #fff;
}

.contact-card a {
  color: var(--color-primary);
  font-weight: 600;
}

.inline-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
}

.inline-list li {
  background: rgba(20, 100, 196, 0.08);
  padding: 6px 10px;
  border-radius: var(--radius-sm);
}

.site-footer {
  background: #fff;
  border-top: 1px solid rgba(20, 100, 196, 0.08);
  color: var(--color-neutral-700);
}

.site-footer__primary {
  width: var(--container-width);
  margin: 0 auto;
  padding: var(--space-2xl) var(--space-md) var(--space-xl);
  display: grid;
  gap: var(--space-lg);
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.footer-block {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}

.footer-title {
  font-family: var(--font-heading);
  margin: 0;
  font-size: 1.1rem;
}

.footer-hours,
.footer-links {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.footer-links a {
  color: inherit;
  text-decoration: none;
}

.footer-links a:hover {
  color: var(--color-primary);
}

.site-footer__bottom {
  border-top: 1px solid rgba(20, 100, 196, 0.08);
  padding: var(--space-md);
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
  justify-content: space-between;
  width: var(--container-width);
  margin: 0 auto;
}

.loading {
  text-align: center;
  color: var(--color-neutral-700);
  padding: var(--space-xl) 0;
}

.error-banner {
  background: rgba(228, 72, 72, 0.12);
  color: var(--color-danger);
  border: 1px solid rgba(228, 72, 72, 0.3);
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--radius-sm);
}

@media (max-width: 900px) {
  .site-header__inner {
    flex-wrap: wrap;
  }

  .nav-toggle {
    display: inline-flex;
  }

  .site-nav {
    position: absolute;
    top: 100%;
    right: var(--space-md);
    padding: var(--space-md);
    background: #fff;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    flex-direction: column;
    align-items: flex-start;
    display: none;
    min-width: 220px;
  }

  .site-nav.is-open {
    display: flex;
  }

  body.theme-contrast .site-nav {
    background: #111827;
  }

  .accessibility-controls {
    order: 3;
    width: 100%;
    justify-content: flex-start;
  }

  .header-status {
    order: 4;
    width: 100%;
    justify-content: flex-start;
  }
}

@media (max-width: 640px) {
  .main-content {
    padding: var(--space-xl) var(--space-md) var(--space-xl);
  }

  .section {
    padding: var(--space-xl) var(--space-md);
  }

  .site-footer__bottom {
    flex-direction: column;
    align-items: flex-start;
  }
}