:root {
  color: #f8f5ec;
  background: #101716;
  font-family: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-synthesis: none;
  text-rendering: optimizeLegibility;
}

* {
  box-sizing: border-box;
}

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

body {
  min-height: 100vh;
  background:
    radial-gradient(circle at 15% 20%, rgb(205 150 63 / 14%), transparent 34rem),
    linear-gradient(145deg, #101716 0%, #16221f 55%, #101716 100%);
}

.page-shell {
  display: grid;
  min-height: 100vh;
  place-items: center;
  padding: clamp(1.5rem, 6vw, 5rem);
}

.notice {
  width: min(100%, 46rem);
  padding: clamp(2rem, 7vw, 5rem);
  border: 1px solid rgb(247 224 171 / 22%);
  border-radius: 1.5rem;
  background: rgb(8 15 14 / 72%);
  box-shadow: 0 2rem 5rem rgb(0 0 0 / 28%);
}

.mark {
  display: grid;
  width: 4.5rem;
  height: 4.5rem;
  margin-bottom: 2rem;
  place-items: center;
  border: 1px solid rgb(235 188 105 / 46%);
  border-radius: 1rem;
  color: #f2c87e;
  font-family: ui-serif, "Yu Mincho", "Hiragino Mincho ProN", serif;
  font-size: 1.65rem;
}

.eyebrow {
  margin: 0 0 0.8rem;
  color: #e6b963;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

h1 {
  max-width: 14ch;
  margin: 0;
  font-family: ui-serif, Georgia, Cambria, "Times New Roman", serif;
  font-size: clamp(2.25rem, 7vw, 4.75rem);
  font-weight: 500;
  letter-spacing: -0.035em;
  line-height: 1.02;
}

.summary {
  max-width: 37rem;
  margin: 1.7rem 0 0;
  color: #cbd5d0;
  font-size: clamp(1rem, 2vw, 1.18rem);
  line-height: 1.75;
}

.return-note {
  margin: 2.4rem 0 0;
  color: #f8f5ec;
  font-size: 0.95rem;
  font-weight: 650;
}

@media (max-width: 34rem) {
  .notice {
    padding: 1.6rem;
    border-radius: 1rem;
  }

  .mark {
    width: 3.8rem;
    height: 3.8rem;
    margin-bottom: 1.6rem;
  }
}

@media (prefers-reduced-motion: no-preference) {
  .notice {
    animation: arrive 500ms ease-out both;
  }

  @keyframes arrive {
    from {
      opacity: 0;
      transform: translateY(0.5rem);
    }
  }
}