.data-shell {
  width: min(820px, calc(100% - 32px));
  margin: 0 auto;
  padding: 48px 0;
}

.data-card {
  padding: clamp(28px, 6vw, 56px);
  border: 1px solid var(--line);
  border-radius: 28px;
  background: var(--surface);
  box-shadow: var(--shadow);
}

.data-back {
  display: inline-flex;
  margin-bottom: 32px;
  color: var(--accent);
  font-weight: 700;
  text-decoration: none;
}

.data-card h1 {
  margin: 6px 0 12px;
  font-family: "Fraunces", Georgia, serif;
  font-size: clamp(2rem, 6vw, 3.5rem);
}

.data-intro {
  max-width: 62ch;
  margin: 0 0 36px;
  color: var(--muted);
  line-height: 1.65;
}

.data-action {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 24px;
  align-items: center;
  padding: 24px 0;
  border-top: 1px solid var(--line);
}

.data-action h2 { margin: 0 0 6px; font-size: 1.05rem; }
.data-action p { margin: 0; color: var(--muted); line-height: 1.5; }
.data-action button,
.import-button {
  display: inline-flex;
  justify-content: center;
  padding: 11px 16px;
  border: 1px solid var(--accent);
  border-radius: 12px;
  background: var(--accent);
  color: white;
  font: inherit;
  font-weight: 700;
  cursor: pointer;
}

#import-data { position: absolute; width: 1px; height: 1px; opacity: 0; }
.data-status { min-height: 24px; margin: 22px 0 0; color: var(--muted); }
.data-status[data-type="success"] { color: var(--green); }
.data-status[data-type="error"] { color: var(--accent-dark); }

@media (max-width: 620px) {
  .data-shell { width: min(100% - 20px, 820px); padding: 18px 0; }
  .data-action { grid-template-columns: 1fr; }
  .data-action button, .import-button { width: 100%; }
}