/* Native CSS for two static pages. No framework, CDN, remote fonts or build required.
   Spacing: 8, 16, 24, 32, 48, 64. Controls: 12px radius. Z-index: skip link only (10).
   Swiss neutral/cobalt composition, with a full-page accessible dark variant. */
:root {
  color-scheme: light;
  --surface: #f7f7f8;
  --text: #202128;
  --muted: #60636e;
  --accent: #002fa7;
  --on-accent: #f7f7f8;
  --accent-hover: #002681;
  --line: #dcdde2;
  --focus: #002fa7;
  --logo-filter: brightness(0) saturate(100%);
  --selection: #dbe5ff;
  --selection-text: #142554;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    color-scheme: dark;
    --surface: #101523;
    --text: #f4f5fa;
    --muted: #b2b9cb;
    --accent: #acc3ff;
    --on-accent: #122143;
    --accent-hover: #c2d2ff;
    --line: #303748;
    --focus: #acc3ff;
    --logo-filter: none;
    --selection: #355394;
    --selection-text: #f4f5fa;
  }
}
:root[data-theme="dark"] {
  color-scheme: dark;
  --surface: #101523;
  --text: #f4f5fa;
  --muted: #b2b9cb;
  --accent: #acc3ff;
  --on-accent: #122143;
  --accent-hover: #c2d2ff;
  --line: #303748;
  --focus: #acc3ff;
  --logo-filter: none;
  --selection: #355394;
  --selection-text: #f4f5fa;
}
* { box-sizing: border-box; }
html { background: var(--surface); scrollbar-color: var(--muted) var(--surface); }
body { margin: 0; background: var(--surface); color: var(--text); font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; -webkit-font-smoothing: antialiased; }
::selection { color: var(--selection-text); background: var(--selection); }
a { color: inherit; text-decoration-thickness: 1px; text-underline-offset: 5px; }
a, select { -webkit-tap-highlight-color: transparent; }
a:focus-visible, select:focus-visible { outline: 3px solid var(--focus); outline-offset: 5px; }
[hidden] { display: none !important; }
.page-shell { width: min(100% - 112px, 1200px); margin-inline: auto; min-height: 100dvh; display: flex; flex-direction: column; }
.site-header { min-height: 80px; display: flex; align-items: center; justify-content: space-between; gap: 24px; border-bottom: 1px solid var(--line); }
.brand { display: inline-flex; align-items: center; min-height: 44px; flex-shrink: 0; }
.brand img { display: block; width: 213px; height: auto; filter: var(--logo-filter); }
.nav-link { display: inline-flex; align-items: center; min-height: 44px; font-size: 14px; font-weight: 500; text-decoration: none; }
.nav-link:hover { text-decoration: underline; }
.hero { flex: 1; display: grid; grid-template-columns: 1.2fr 1fr; align-items: center; gap: 24px; padding-block: 64px; }
.hero-copy { position: relative; }
h1 { font-size: clamp(44px, 4.6vw, 66px); line-height: 1.08; font-weight: 500; letter-spacing: -.035em; margin: 0; }
h1 span { color: var(--accent); }
.description { max-width: 450px; font-size: 18px; line-height: 1.65; color: var(--muted); margin: 28px 0 0; text-wrap: pretty; }
.actions { display: flex; flex-wrap: wrap; align-items: center; gap: 24px; margin-top: 36px; }
.button { display: inline-flex; justify-content: center; align-items: center; min-height: 56px; padding: 16px 24px; background: var(--accent); color: var(--on-accent); border: 1px solid transparent; border-radius: 12px; font-size: 15px; line-height: 1.4; font-weight: 600; text-decoration: none; white-space: nowrap; }
.button:hover { background: var(--accent-hover); }
.button:active { transform: scale(.98); }
.text-link { min-height: 44px; display: inline-flex; align-items: center; font-size: 15px; font-weight: 500; text-decoration: underline; }
.text-link:hover { color: var(--accent); }
.hero-art { width: 100%; min-width: 0; }
.hero-art img { width: 100%; height: auto; display: block; }
.hero-simple { grid-template-columns: 1fr; }
.site-footer { min-height: 88px; border-top: 1px solid var(--line); display: flex; align-items: center; justify-content: space-between; gap: 24px; padding-block: 20px; color: var(--muted); font-size: 12px; line-height: 1.6; }
.site-footer p { margin: 0; }
.appearance { display: flex; align-items: center; gap: 10px; }
.appearance select { min-height: 44px; font: inherit; font-size: 12px; color: var(--text); background: var(--surface); border: 1px solid var(--line); border-radius: 12px; padding: 8px 26px 8px 12px; cursor: pointer; }
.skip-link { position: absolute; top: -100px; left: 16px; padding: 16px; background: var(--accent); color: var(--on-accent); z-index: 10; border-radius: 12px; }
.skip-link:focus { top: 16px; }
@media (prefers-reduced-motion: no-preference) {
  .button { transition: background-color 160ms ease, transform 160ms ease; }
  .text-link { transition: color 160ms ease; }
}
@media (max-width: 1023px) {
  .page-shell { width: calc(100% - 64px); }
  .hero { grid-template-columns: 1.35fr 1fr; gap: 8px; }
  h1 { font-size: clamp(40px, 5vw, 52px); }
  .description { font-size: 17px; }
  .actions { gap: 16px; }
}
@media (max-width: 767px) {
  .page-shell { width: calc(100% - 48px); }
  .site-header { min-height: 76px; gap: 12px; }
  .brand img { width: 174px; }
  .nav-link { font-size: 13px; }
  .hero { grid-template-columns: 1fr; gap: 12px; padding-block: 56px 28px; align-content: center; }
  h1 { font-size: clamp(36px, 8.5vw, 56px); }
  .description { margin-top: 24px; max-width: 440px; }
  .actions { margin-top: 28px; gap: 16px 24px; }
  .button { min-height: 54px; padding-inline: 22px; }
  .hero-art { width: min(100%, 340px); margin-inline: auto; }
  .site-footer { padding-block: 20px; flex-wrap: wrap; gap: 12px; }
  .site-footer p span { display: block; }
}
@media (max-width: 359px) {
  .page-shell { width: calc(100% - 32px); }
  .brand img { width: 155px; }
  .nav-link { font-size: 12px; }
  h1 { font-size: 33px; }
}