/* PixelJihad 的既有 ID 保持不变，只重做页面外壳。 */
.section {
  margin: 16px 0 0;
  padding: 22px;
  overflow: auto;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: var(--shadow);
}

.step {
  margin: 0 0 15px;
  color: var(--text-soft);
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 650;
  letter-spacing: .1em;
  text-transform: uppercase;
}

.sectionbody { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
#main .sectionbody, #reveal .sectionbody { display: block; }
.left, .right { width: 100%; float: none; }
.message { height: 132px; margin-bottom: 12px; }
.password { margin-bottom: 12px; }

.submit {
  display: inline-flex;
  min-height: 40px;
  align-items: center;
  justify-content: center;
  padding: 9px 15px;
  border: 1px solid var(--accent);
  border-radius: 999px;
  background: var(--accent);
  color: var(--on-accent);
  font: inherit;
  font-size: 13.5px;
  font-weight: 600;
  cursor: pointer;
}
.submit:hover { filter: brightness(1.07); }

.preview {
  display: block;
  width: 150px;
  height: auto;
  margin: 0 0 16px;
  border: 1px solid var(--border);
  border-radius: 10px;
}

#messageDecoded {
  padding: 13px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--bg-soft);
  font-family: var(--mono);
  font-size: 13px;
  white-space: pre-wrap;
  word-break: break-word;
}

.output-section { padding: 0; border: 0; background: transparent; box-shadow: none; }
#output { display: block; max-width: 100%; height: auto; border-radius: 12px; }
#output:not([src]) { display: none; }
#output[src] { border: 1px solid var(--border); box-shadow: var(--shadow-hi); }
.hide { display: none; }

@media (max-width: 700px) {
  .sectionbody { grid-template-columns: 1fr; }
}