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

html,
body {
  margin: 0;
  min-height: 100%;
}

body {
  font-family: "DM Sans", system-ui, -apple-system, "Segoe UI", sans-serif;
  background: #f5f5f5;
  color: #1f3d2a;
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding: 3rem 1.25rem 4rem;
  line-height: 1.5;
}

.site-header {
  text-align: center;
  max-width: 36rem;
  width: 100%;
}

.logo {
  width: 120px;
  height: auto;
  display: block;
  margin: 0 auto 1.5rem;
  object-fit: contain;
}

.title {
  font-size: clamp(1.75rem, 4vw, 2.25rem);
  font-weight: 600;
  letter-spacing: 0.02em;
  margin: 0 0 0.5rem;
  color: #1a4d2e;
}

.subheading {
  margin: 0;
  font-size: 1.05rem;
  font-weight: 500;
  color: #4a6b55;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.portal-link {
  margin-top: 1.75rem;
  font-size: 0.95rem;
}

.portal-link a {
  color: #1a4d2e;
  font-weight: 600;
  text-decoration: none;
}

.portal-link a:hover {
  text-decoration: underline;
}