:root {
  color-scheme: light;
  --ink: #0f172a;
  --muted: #475569;
  --line: #dbe3ef;
  --paper: #f8fafc;
  --surface: #ffffff;
  --accent: #1d4ed8;
  --wsi-blue-700: #1d4ed8;
  --wsi-button-inline-bg: var(--wsi-blue-700);
  --wsi-button-inline-text: #ffffff;
  --accent-dark: #1e3a8a;
  --accent-soft: #eff6ff;
  --hero-mid: #1e40af;
  --gold: #b45309;
  --focus-ring: #f59e0b;
  --focus-shadow: rgba(245, 158, 11, .32);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--ink);
  background: var(--paper);
  line-height: 1.5;
}

a {
  color: var(--accent-dark);
}

a,
button,
select,
summary {
  transition: color 160ms ease, background-color 160ms ease, border-color 160ms ease, box-shadow 160ms ease, outline-color 160ms ease;
}

a:focus-visible,
button:focus-visible,
select:focus-visible,
summary:focus-visible {
  outline: 3px solid var(--focus-ring);
  outline-offset: 3px;
  box-shadow: 0 0 0 6px var(--focus-shadow);
}

.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;
}

.skip-link {
  position: absolute;
  left: 18px;
  top: 12px;
  z-index: 20;
  transform: translateY(-160%);
  border-radius: 999px;
  background: var(--accent-dark);
  color: white;
  padding: 10px 14px;
  font-size: 14px;
  font-weight: 900;
  text-decoration: none;
}

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

.topbar {
  background: var(--surface);
  border-bottom: 1px solid var(--line);
  min-height: 72px;
}

.topbar-inner {
  max-width: 1120px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 28px;
  min-height: 72px;
  padding: 12px 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: var(--ink);
  flex: 0 0 auto;
  min-width: 0;
  line-height: 1.15;
}

.brand small {
  display: block;
  color: var(--muted);
  font-size: 13px;
  margin-top: 2px;
}

.mark {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border-radius: 999px;
  background: var(--accent-dark);
  color: white;
  font-weight: 900;
}

.topbar-actions {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 22px;
  flex: 1 1 auto;
  min-width: 0;
}

nav {
  display: flex;
  align-items: center;
  gap: 18px;
}

nav a {
  display: inline-flex;
  align-items: center;
  color: var(--accent-dark);
  font-size: 15px;
  font-weight: 800;
  line-height: 1;
  min-height: 38px;
  text-decoration: none;
  white-space: nowrap;
}

.desktop-nav {
  flex: 1 1 auto;
  justify-content: flex-end;
  min-width: 0;
}

.desktop-action-group {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 14px;
  flex: 0 0 auto;
  min-height: 42px;
}

.login-action {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 40px;
  padding: 0 16px;
  border-radius: 999px;
  background: var(--wsi-button-inline-bg);
  color: var(--wsi-button-inline-text);
  font-size: 14px;
  font-weight: 900;
  line-height: 1;
  white-space: nowrap;
}

.login-action:hover {
  background: var(--accent-dark);
  color: var(--wsi-button-inline-text);
}

.mobile-menu {
  display: none;
  position: relative;
}

.mobile-menu summary {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--accent-dark);
  cursor: pointer;
  font-size: 22px;
  font-weight: 900;
  list-style: none;
}

.mobile-menu summary::-webkit-details-marker {
  display: none;
}

.mobile-menu nav {
  margin-top: 12px;
}

.lang-switcher {
  display: flex;
  align-items: center;
  gap: 8px;
  min-height: 40px;
}

.lang-switcher label {
  color: var(--muted);
  font-size: 13px;
  font-weight: 800;
}

.lang-switcher select {
  min-width: 150px;
  height: 40px;
  padding: 0 12px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--surface);
  color: var(--ink);
  font-size: 14px;
  font-weight: 700;
}

main {
  max-width: 1120px;
  margin: 0 auto;
  padding: 36px 24px;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 280px;
  gap: 28px;
  align-items: stretch;
  color: white;
  background: linear-gradient(110deg, var(--accent-dark), var(--hero-mid), var(--accent));
  border-radius: 8px;
  padding: 30px;
}

.hero-landing {
  width: 100vw;
  margin-left: calc(50% - 50vw);
  margin-right: calc(50% - 50vw);
  border-radius: 0;
  padding: 0;
}

.hero-landing .hero-inner {
  width: 100%;
  max-width: 1120px;
  margin: 0 auto;
  padding: 46px 24px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 280px;
  gap: 28px;
  align-items: stretch;
}

.panel,
article {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 24px;
}

.hero-copy {
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.hero-card {
  background: var(--surface);
  border: 1px solid rgba(219, 234, 254, .75);
  border-radius: 8px;
  color: var(--ink);
  padding: 24px;
}

.status-note {
  display: grid;
  gap: 6px;
  margin: 14px 0 18px;
  padding: 14px;
  border: 1px solid var(--line);
  border-left: 4px solid var(--accent);
  border-radius: 8px;
  background: var(--accent-soft);
}

.status-note strong {
  color: var(--accent-dark);
}

.status-note span {
  color: var(--muted);
  font-size: 14px;
  line-height: 1.55;
}

h1 {
  margin: 0 0 12px;
  font-size: 38px;
  line-height: 1.12;
}

h2 {
  margin: 0 0 10px;
  font-size: 20px;
}

.eyebrow {
  color: var(--gold);
  font-weight: 700;
  text-transform: uppercase;
  font-size: 13px;
}

.hero .eyebrow,
.hero p {
  color: #dbeafe;
}

.hero h1 {
  color: white;
}

.grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
  margin-top: 22px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  padding: 0 14px;
  border-radius: 6px;
  background: var(--accent);
  color: white;
  text-decoration: none;
  font-weight: 700;
}

.button:hover {
  background: var(--accent-dark);
}

.actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.checks {
  columns: 2;
}

.invite {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 280px;
  gap: 28px;
  align-items: start;
}

.invite-copy,
.invite-qr {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 24px;
}

.invite-details {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px 22px;
  margin: 20px 0 0;
}

.invite-details dd {
  overflow-wrap: anywhere;
}

.invite-qr img {
  display: block;
  width: 100%;
  height: auto;
}

.invite-registration,
.invite-boundary {
  margin-top: 22px;
}

.registration-link {
  overflow-wrap: anywhere;
  font-weight: 700;
}

.invite-boundary ul {
  margin: 12px 0 0;
  padding-left: 22px;
}

.invite-boundary li {
  margin: 8px 0;
}

dt {
  font-weight: 700;
}

dd {
  margin: 0 0 12px;
  color: var(--muted);
}

footer {
  max-width: 1120px;
  margin: 0 auto;
  padding: 18px 24px 36px;
  color: var(--accent-dark);
  font-size: 13px;
  font-weight: 700;
}

@media (max-width: 760px) {
  .topbar-inner,
  .hero,
  .invite,
  .grid {
    display: block;
  }

  .hero-landing .hero-inner {
    display: block;
    padding: 34px 24px;
  }

  .topbar-actions,
  .lang-switcher,
  nav,
  .hero-card,
  .invite-qr,
  article {
    margin-top: 16px;
  }

  .topbar-inner {
    align-items: flex-start;
  }

  .topbar-actions {
    justify-content: flex-end;
    gap: 0;
  }

  .desktop-nav,
  .desktop-action-group,
  .desktop-lang {
    display: none;
  }

  .mobile-menu {
    display: block;
    width: 100%;
  }

  .mobile-menu nav {
    display: grid;
    gap: 10px;
  }

  .invite-details {
    grid-template-columns: 1fr;
  }

  .topbar-actions,
  .lang-switcher,
  .lang-switcher select {
    width: 100%;
  }

  h1 {
    font-size: 30px;
  }

  .checks {
    columns: 1;
  }
}