:root {
  color-scheme: light dark;
  --ma-background-primary: #f7f7f8;
  --ma-background-grouped: #f1f2f4;
  --ma-surface-primary: #fcfcfd;
  --ma-surface-elevated: #ffffff;
  --ma-surface-interactive: #ecedef;
  --ma-divider: #d8d9de;
  --ma-text-primary: #17171a;
  --ma-text-secondary: #5b5c62;
  --ma-text-tertiary: #696a70;
  --ma-brand-primary: #0a55d5;
  --ma-brand-strong: #073b9e;
  --ma-brand-subtle: #e7efff;
  --ma-on-brand: #ffffff;
  --ma-radius-control: 10px;
  --ma-radius-card: 16px;
  --ma-container: 1120px;
  --ma-reading: 760px;
  --ma-header-scroll-offset: 6rem; /* Wide sticky header plus breathing room. */
}

@media (prefers-color-scheme: dark) {
  :root {
    --ma-background-primary: #0f1012;
    --ma-background-grouped: #141519;
    --ma-surface-primary: #1b1c20;
    --ma-surface-elevated: #222329;
    --ma-surface-interactive: #26272d;
    --ma-divider: #35373e;
    --ma-text-primary: #f5f5f7;
    --ma-text-secondary: #b9bac0;
    --ma-text-tertiary: #92939a;
    --ma-brand-primary: #79a4ff;
    --ma-brand-strong: #2c5fc8;
    --ma-brand-subtle: #17294a;
    --ma-on-brand: #ffffff;
  }
}

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

html {
  scroll-behavior: smooth;
  /* Reserve the sticky header plus breathing room for anchor destinations. */
  scroll-padding-top: var(--ma-header-scroll-offset);
}

body {
  margin: 0;
  background: var(--ma-background-primary);
  color: var(--ma-text-primary);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  font-size: 1rem;
  line-height: 1.6;
  text-rendering: optimizeLegibility;
}

h1,
h2,
h3,
p,
ul {
  margin-top: 0;
}

h1,
h2,
h3 {
  line-height: 1.16;
  letter-spacing: -0.02em;
}

h1 {
  max-width: 16ch;
  margin-bottom: 24px;
  font-size: clamp(2.4rem, 5vw, 3.5rem);
  font-weight: 700;
}

h2 {
  margin-bottom: 20px;
  font-size: clamp(1.55rem, 3vw, 2rem);
  font-weight: 700;
}

h3 {
  margin-bottom: 12px;
  font-size: 1.15rem;
  font-weight: 650;
}

p,
li {
  color: var(--ma-text-secondary);
}

p {
  margin-bottom: 16px;
}

ul {
  margin-bottom: 20px;
  padding-left: 24px;
}

li + li {
  margin-top: 4px;
}

strong {
  color: var(--ma-text-primary);
}

a {
  color: var(--ma-brand-primary);
  text-underline-offset: 0.18em;
  text-decoration-thickness: 0.08em;
}

a:hover {
  text-decoration-thickness: 0.13em;
}

a:focus-visible,
summary:focus-visible {
  border-radius: 3px;
  outline: 3px solid var(--ma-brand-primary);
  outline-offset: 3px;
}

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

.site-container {
  width: 100%;
  max-width: var(--ma-container);
  margin-inline: auto;
  padding-inline: clamp(20px, 4vw, 40px);
}

.reading-container {
  max-width: var(--ma-reading);
}

.homepage-narrative,
.hero-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 24px;
  align-items: start;
}

.homepage-narrative > h2 {
  margin-bottom: 0;
}

.narrative-copy,
.hero-copy {
  min-width: 0;
  max-width: var(--ma-reading);
}

.narrative-copy > :last-child {
  margin-bottom: 0;
}

.skip-link {
  position: fixed;
  z-index: 101; /* Keep keyboard access above the sticky header. */
  top: 12px;
  left: 12px;
  padding: 12px 16px;
  border-radius: var(--ma-radius-control);
  background: var(--ma-brand-strong);
  color: var(--ma-on-brand);
  font-weight: 650;
  transform: translateY(-180%);
}

.skip-link:focus {
  transform: translateY(0);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  border-bottom: 1px solid var(--ma-divider);
  background: var(--ma-surface-elevated);
}

.header-layout {
  display: flex;
  min-height: 72px;
  align-items: center;
  justify-content: space-between;
  gap: 20px 32px;
}

.site-identity {
  display: block;
  width: 192px;
  flex-shrink: 0;
  text-decoration: none;
}

.site-identity picture {
  display: block;
}

.site-identity img {
  width: 100%;
  aspect-ratio: 1024 / 380;
}

.site-nav {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 4px 8px;
  flex-wrap: wrap;
}

.site-nav a,
.footer-nav a {
  color: var(--ma-text-secondary);
  font-weight: 600;
  text-decoration: none;
}

.site-nav a {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  padding-inline: 12px;
  border-radius: var(--ma-radius-control);
}

.mobile-menu {
  display: none;
}

.site-nav a:hover,
.site-nav a[aria-current="page"] {
  background: var(--ma-surface-interactive);
  color: var(--ma-text-primary);
}

.hero {
  padding-top: clamp(32px, 4vw, 48px);
  padding-bottom: 24px;
}

.hero-layout {
  row-gap: 0;
}

.eyebrow {
  margin-bottom: 12px;
  color: var(--ma-brand-primary);
  font-size: 0.9375rem;
  font-weight: 700;
}

.body-large {
  font-size: 1.125rem;
}

.action-group {
  display: flex;
  margin-top: 32px;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.button {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  justify-content: center;
  padding: 10px 20px;
  border: 1px solid transparent;
  border-radius: var(--ma-radius-control);
  font-weight: 650;
  line-height: 1.35;
  text-align: center;
  text-decoration: none;
}

.button-primary {
  background: var(--ma-brand-strong);
  color: var(--ma-on-brand);
}

.button-primary:hover {
  background: var(--ma-brand-strong);
  text-decoration: underline;
}

.button-secondary {
  border-color: var(--ma-divider);
  background: var(--ma-surface-elevated);
  color: var(--ma-text-primary);
}

.button-secondary:hover {
  background: var(--ma-surface-interactive);
}

.section {
  padding-block: clamp(20px, 2.5vw, 24px);
}

.section-grouped {
  background: var(--ma-background-grouped);
}

.section-heading {
  max-width: var(--ma-reading);
  margin-bottom: 24px;
}

.product-panel {
  display: grid;
  padding: clamp(24px, 5vw, 48px);
  border: 1px solid var(--ma-divider);
  border-radius: var(--ma-radius-card);
  background: var(--ma-surface-primary);
  grid-template-columns: minmax(120px, 160px) minmax(0, 1fr);
  gap: clamp(24px, 5vw, 48px);
  align-items: start;
}

.product-icon {
  width: 100%;
  max-width: 160px;
  border-radius: 22%;
}

.product-copy {
  max-width: 720px;
}

.text-link {
  font-weight: 650;
}

.supporting-note {
  padding-left: 16px;
  border-left: 3px solid var(--ma-divider);
  color: var(--ma-text-tertiary);
  font-size: 0.9375rem;
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px;
}

.card {
  padding: clamp(20px, 3vw, 24px);
  border: 1px solid var(--ma-divider);
  border-radius: var(--ma-radius-card);
  background: var(--ma-surface-primary);
}

.card p:last-child,
.footer-layout p:last-child,
.privacy-content > :last-child {
  margin-bottom: 0;
}

.contact-section {
  padding-bottom: clamp(64px, 10vw, 112px);
}

.error-page {
  display: flex;
  min-height: 100vh;
  flex-direction: column;
}

.error-main {
  flex: 1;
}

.error-main,
.privacy-main {
  padding-block: clamp(48px, 8vw, 80px) clamp(64px, 10vw, 112px);
}

.error-content h1,
.privacy-content h1 {
  max-width: none;
  font-size: clamp(2rem, 4vw, 2.75rem);
}

.privacy-content h2 {
  margin-top: 40px;
}

.site-footer {
  padding-block: 40px;
  border-top: 1px solid var(--ma-divider);
  background: var(--ma-surface-elevated);
  font-size: 0.875rem;
}

.footer-layout {
  display: flex;
  justify-content: space-between;
  gap: 32px 48px;
}

.footer-company {
  color: var(--ma-text-primary);
  font-size: 1rem;
  font-weight: 700;
}

.footer-meta {
  flex-shrink: 0;
  text-align: right;
}

.footer-nav {
  display: flex;
  margin-bottom: 12px;
  justify-content: flex-end;
  gap: 8px;
}

@media (min-width: 960px) {
  .homepage-narrative,
  .hero-layout {
    grid-template-columns: minmax(0, 1fr) minmax(0, 2fr);
    gap: 32px;
  }
}

@media (max-width: 800px) {
  :root {
    --ma-header-scroll-offset: 10rem; /* Horizontal logo above one navigation row. */
  }

  .header-layout {
    padding-block: 12px;
    align-items: flex-start;
    flex-direction: column;
    gap: 4px;
  }

  .site-nav {
    width: 100%;
    justify-content: flex-start;
    margin-inline: -12px;
  }
}

@media (max-width: 640px) {
  :root {
    --ma-header-scroll-offset: 6rem; /* Compact identity/Menu row. */
  }

  html:has(.mobile-menu[open]) {
    --ma-header-scroll-offset: 18rem; /* Include the in-flow expanded menu. */
  }

  html {
    scroll-behavior: auto;
  }

  .header-layout {
    display: grid;
    grid-template-columns: minmax(0, 1fr);
    align-items: start;
  }

  .site-identity {
    grid-area: 1 / 1;
    justify-self: start;
    width: calc(56px * 1024 / 380);
    margin-block: -6px; /* Fit the horizontal logo within the existing 44px Menu row. */
    z-index: 1; /* Keep the home link above the disclosure's blank leading area. */
  }

  .desktop-nav {
    display: none;
  }

  .mobile-menu {
    display: block;
    grid-area: 1 / 1; /* Expansion grows the shared header row in normal flow. */
    min-width: 0;
  }

  .mobile-menu summary {
    width: max-content;
    min-height: 44px;
    margin-left: auto;
    padding: 8px 12px;
    border-radius: var(--ma-radius-control);
    color: var(--ma-text-secondary);
    font-weight: 600;
    list-style-position: inside;
    cursor: pointer;
  }

  .mobile-menu summary:hover,
  .mobile-menu[open] summary {
    background: var(--ma-surface-interactive);
    color: var(--ma-text-primary);
  }

  .mobile-menu .site-nav {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    margin: 12px 0 0;
    padding-top: 12px;
    border-top: 1px solid var(--ma-divider);
  }

  .product-panel {
    grid-template-columns: 1fr;
  }

  .product-icon {
    width: 128px;
  }

  .card-grid {
    grid-template-columns: 1fr;
  }

  .footer-layout {
    flex-direction: column;
  }

  .footer-meta {
    text-align: left;
  }

  .footer-nav {
    justify-content: flex-start;
  }
}

@media (max-width: 440px) {
  .action-group,
  .button {
    width: 100%;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
}