:root {
  color-scheme: dark;
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    "Noto Sans JP", "Noto Sans SC", sans-serif;
  background: #130b08;
  color: #fff4d6;
}

* {
  box-sizing: border-box;
}

body {
  min-height: 100vh;
  margin: 0;
  background:
    radial-gradient(circle at 20% 15%, rgb(238 67 47 / 22%), transparent 32rem),
    radial-gradient(circle at 85% 80%, rgb(33 109 106 / 24%), transparent 34rem),
    linear-gradient(145deg, #26110a, #0f1517);
}

.preview-shell {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: clamp(18px, 4vw, 48px);
}

.preview-card {
  width: min(880px, 100%);
  padding: clamp(24px, 6vw, 68px);
  border: 1px solid rgb(255 244 214 / 24%);
  border-radius: 28px;
  background: rgb(18 12 10 / 86%);
  box-shadow:
    0 36px 100px rgb(0 0 0 / 42%),
    inset 0 1px rgb(255 255 255 / 8%);
  backdrop-filter: blur(18px);
}

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

.stamp {
  display: grid;
  width: 62px;
  height: 62px;
  place-items: center;
  rotate: -5deg;
  border: 3px solid #ff4b35;
  color: #fff4d6;
  font-family: serif;
  font-size: 34px;
  font-weight: 900;
  box-shadow: inset 0 0 0 4px #130b08;
}

.eyebrow,
.status,
footer {
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.eyebrow {
  margin: 0 0 4px;
  color: #f1b93d;
  font-size: 12px;
  font-weight: 800;
}

h1 {
  margin: 0;
  font-family: serif;
  font-size: clamp(42px, 9vw, 76px);
  line-height: 0.95;
}

.status {
  display: inline-block;
  margin: 30px 0;
  padding: 9px 13px;
  border: 1px solid #ef432f;
  border-radius: 999px;
  color: #ffcec5;
  font-size: 11px;
  font-weight: 800;
}

.copy-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}

article {
  min-height: 180px;
  padding: 20px;
  border: 1px solid rgb(255 244 214 / 14%);
  border-radius: 18px;
  background: rgb(255 255 255 / 4%);
}

article b {
  color: #f1b93d;
}

article p {
  margin: 12px 0 0;
  color: rgb(255 244 214 / 74%);
  font-size: 14px;
  line-height: 1.7;
}

.play-button {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  margin-top: 18px;
  padding: 18px 22px;
  border-radius: 16px;
  background: #ef432f;
  color: #fff;
  text-decoration: none;
  box-shadow: 0 12px 28px rgb(239 67 47 / 25%);
}

.play-button span {
  font-size: 18px;
  font-weight: 900;
}

.play-button small {
  letter-spacing: 0.09em;
  opacity: 0.8;
}

footer {
  display: flex;
  flex-wrap: wrap;
  gap: 9px 18px;
  margin-top: 22px;
  color: rgb(255 244 214 / 42%);
  font-size: 10px;
  font-weight: 800;
}

@media (max-width: 680px) {
  .copy-grid {
    grid-template-columns: 1fr;
  }

  article {
    min-height: 0;
  }

  .play-button {
    align-items: flex-start;
    flex-direction: column;
  }
}