:root {
  --color-ink: #303036;
  --color-teal: #49c5b1;
  --color-paper: #f2f2f2;
  --color-white: #ffffff;
}

* {
  box-sizing: border-box;
}

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

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

.site-header {
  padding: 2rem 1.5rem 1rem;
  text-align: center;
}

.logo {
  width: 220px;
  max-width: 70vw;
  height: auto;
}

main {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
}

.notice {
  background: var(--color-white);
  border-top: 6px solid var(--color-teal);
  border-radius: 8px;
  box-shadow: 0 10px 30px rgba(48, 48, 54, 0.08);
  max-width: 640px;
  width: 100%;
  padding: 2.5rem 2rem;
  text-align: center;
}

.notice h1 {
  margin: 0 0 1rem;
  font-size: 1.75rem;
}

.notice p {
  margin: 0 0 1rem;
  font-size: 1.05rem;
}

.notice p:last-child {
  margin-bottom: 0;
}

.contact-email {
  display: inline-block;
  margin-top: 0.5rem;
  padding: 0.75rem 1.5rem;
  background: var(--color-teal);
  color: var(--color-ink);
  font-weight: 600;
  text-decoration: none;
  border-radius: 4px;
}

.contact-email:hover,
.contact-email:focus {
  background: var(--color-ink);
  color: var(--color-white);
}

.site-footer {
  padding: 1.5rem;
  text-align: center;
  font-size: 0.85rem;
  color: var(--color-ink);
}

@media (max-width: 480px) {
  .notice {
    padding: 2rem 1.25rem;
  }

  .notice h1 {
    font-size: 1.4rem;
  }
}