.seed-main {
  width: 100%;
  max-width: 720px;
  margin: 0 auto;
}

.seed-title {
  margin-bottom: 24px;
}

.seed-title p {
  margin: 0 0 6px;
  color: var(--color-text-muted);
  font-size: 0.76rem;
}

.seed-title p:last-child {
  margin-top: 6px;
}

.seed-title a {
  color: inherit;
  text-decoration: none;
}

.seed-title a:hover {
  color: var(--color-primary);
}

.seed-title h2 {
  margin: 0;
  font-size: 1.25rem;
}

.seed-representation {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 10px;
  color: var(--color-text-muted);
  font-size: 0.72rem;
}

.seed-representation select {
  min-height: 32px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-control);
  color: var(--color-text);
  padding: 4px 8px;
}

.seed-section {
  border-top: 1px solid var(--color-border);
  padding: 20px 0 24px;
}

.seed-section:last-child {
  border-bottom: 1px solid var(--color-border);
}

.section-title {
  margin-bottom: 14px;
}

.section-title h3 {
  margin: 0;
  font-size: 0.98rem;
}

.seed-form {
  display: grid;
  gap: 16px;
  padding: 18px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background: var(--color-surface);
}

.seed-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.seed-field {
  display: grid;
  gap: 6px;
  color: var(--color-text-muted);
  font-size: 0.72rem;
  font-weight: 700;
}

.seed-field input,
.seed-field select {
  width: 100%;
  min-height: 40px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-control);
  color: var(--color-text);
  font-family: ui-monospace, "Cascadia Code", "SFMono-Regular", Consolas, monospace;
  padding: 7px 10px;
}

.seed-button,
.seed-result button {
  min-height: 38px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-control);
  color: var(--color-text);
  cursor: pointer;
  font-weight: 700;
}

.seed-button {
  padding: 8px 14px;
}

.seed-button.is-primary {
  border-color: var(--color-primary);
  background: var(--color-primary);
  color: #ffffff;
}

.seed-button:hover,
.seed-result button:hover {
  border-color: var(--color-primary);
  background: var(--color-primary);
  color: #ffffff;
}

.seed-actions {
  display: flex;
  gap: 10px;
}

.seed-actions .seed-button {
  flex: 1;
}

.seed-status,
.seed-progress {
  min-height: 1.6em;
  margin: 10px 0 0;
  color: var(--color-text-muted);
  font-size: 0.76rem;
}

.seed-status.is-error {
  color: #fca5a5;
}

#distance-progress {
  width: 100%;
  height: 8px;
  margin-top: 12px;
  accent-color: var(--color-primary);
}

.seed-result {
  margin-top: 16px;
  border-top: 1px solid var(--color-border);
  padding-top: 16px;
}

.result-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
}

.result-head h4 {
  margin: 0;
  font-size: 0.9rem;
}

.seed-result button {
  min-height: 30px;
  padding: 4px 10px;
  font-size: 0.72rem;
}

.seed-decimal {
  display: block;
  margin: 16px 0;
  overflow-wrap: anywhere;
  color: var(--color-accent-light);
  font-family: ui-monospace, "Cascadia Code", "SFMono-Regular", Consolas, monospace;
  font-size: 1.62rem;
  font-weight: 700;
}

.seed-representation-label {
  margin: 16px 0 -10px;
  color: var(--color-text-muted);
  font-size: 0.7rem;
}

.seed-details {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin: 0;
}

.seed-details dt {
  color: var(--color-text-muted);
  font-size: 0.68rem;
}

.seed-details dd {
  margin: 3px 0 0;
  overflow-wrap: anywhere;
  font-family: ui-monospace, "Cascadia Code", "SFMono-Regular", Consolas, monospace;
  font-size: 0.82rem;
}

.result-use {
  margin-top: 16px;
}

@media (max-width: 520px) {
  .seed-form {
    padding: 16px;
  }

  .seed-grid,
  .seed-details {
    grid-template-columns: 1fr;
  }
}