* {
  box-sizing: border-box;
}

:root {
  --background: #f7f8f7;
  --foreground: #303438;
  --muted: #6c7276;
  --blue: #0782a8;
  --line: #e3e6e4;
}

html {
  min-height: 100%;
}

body {
  min-height: 100%;
  margin: 0;
  background:
    radial-gradient(circle at top, #ffffff 0, rgba(255, 255, 255, 0) 44%),
    var(--background);
  color: var(--foreground);
  font-family: Arial, Helvetica, sans-serif;
}

a {
  color: inherit;
  text-decoration: none;
}

.version-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 12px 18px;
  background: rgba(255, 255, 255, 0.94);
  border-bottom: 1px solid var(--line);
  color: #28322e;
  backdrop-filter: blur(14px);
}

.version-home {
  color: var(--blue);
  font-weight: 850;
}

.version-nav {
  display: flex;
  gap: 8px;
}

.version-nav a {
  min-width: 42px;
  padding: 8px 12px;
  border: 1px solid var(--line);
  border-radius: 6px;
  color: #28322e;
  font-size: 0.82rem;
  font-weight: 700;
  text-align: center;
}

.version-nav a[aria-current="page"] {
  background: #303438;
  color: #ffffff;
}

.placeholder {
  display: grid;
  min-height: calc(100vh - 61px);
  place-items: center;
  padding: 32px 20px;
}

.placeholder-card {
  display: grid;
  justify-items: center;
  width: min(100%, 520px);
  padding: clamp(34px, 7vw, 64px);
  background: rgba(255, 255, 255, 0.72);
  border: 1px solid var(--line);
  border-radius: 8px;
  text-align: center;
  box-shadow: 0 24px 80px rgba(34, 45, 49, 0.08);
}

.logo-mark {
  width: min(178px, 48vw);
  height: auto;
  display: block;
  margin-bottom: 34px;
}

.identity {
  display: grid;
  gap: 6px;
}

.eyebrow {
  margin: 0;
  color: var(--blue);
  font-size: 0.8rem;
  font-weight: 800;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

h1 {
  margin: 0;
  color: #24272a;
  font-size: clamp(2.2rem, 9vw, 4.2rem);
  font-weight: 500;
  line-height: 1;
}

.identity p:last-child {
  margin: 0;
  color: var(--muted);
  font-size: clamp(1rem, 3vw, 1.25rem);
}

.contact-details {
  display: grid;
  gap: 10px;
  margin: 34px 0 0;
  padding-top: 28px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-style: normal;
}

.contact-details a {
  color: var(--blue);
  font-size: clamp(1.35rem, 5vw, 1.9rem);
  font-weight: 800;
}

@media (max-width: 460px) {
  .version-header {
    align-items: flex-start;
    flex-direction: column;
  }

  .version-nav {
    width: 100%;
  }

  .version-nav a {
    flex: 1;
  }

  .placeholder-card {
    padding-inline: 24px;
  }
}