.proposal {
  max-width: var(--content-max);
  margin: 0 auto;
  padding: 2.2rem 2rem 4rem;
}

.proposal-header {
  margin-bottom: 2.4rem;
}

.proposal-eyebrow {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: var(--muted);
  margin-bottom: 0.9rem;
}

.proposal-title {
  font-family: "IBM Plex Sans JP", sans-serif;
  font-weight: 700;
  font-size: clamp(1.55rem, 3.4vw, 2.1rem);
  line-height: 1.35;
  letter-spacing: -0.02em;
  color: var(--ink);
  margin-bottom: 1.3rem;
  text-wrap: balance;
}

.proposal-title code {
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.82em;
  font-weight: 600;
  background: var(--paper-deep);
  color: var(--ink);
  padding: 0.06em 0.35em;
  border-radius: 4px;
  vertical-align: 0.04em;
}

/* Meta panel */
.proposal-meta {
  border-top: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
  padding: 0.75rem 0;
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}

.meta-row {
  display: grid;
  grid-template-columns: 130px 1fr;
  gap: 1.2rem;
  align-items: baseline;
}

.meta-row dt {
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.66rem;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: var(--muted);
  font-weight: 500;
}

.meta-row dd {
  font-size: 0.86rem;
  color: var(--ink-soft);
  line-height: 1.5;
}

.meta-row a.external {
  color: var(--ink);
  text-decoration: none;
  border-bottom: 1px solid var(--rule);
  padding-bottom: 1px;
  transition: color 0.15s ease, border-color 0.15s ease;
}

.meta-row a.external:hover {
  color: var(--accent);
  border-color: var(--accent);
}

.meta-row .arrow {
  display: inline-block;
  margin-left: 0.3em;
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.85em;
  color: var(--muted);
  transition: transform 0.15s ease, color 0.15s ease;
}

.meta-row a.external:hover .arrow {
  color: var(--accent);
  transform: translate(2px, -2px);
}

/* Sections */
.proposal-section {
  margin-top: 2.2rem;
}

/* Responsive */
@media (max-width: 720px) {
  .proposal {
    padding: 1.6rem 1.2rem 3rem;
  }

  .proposal-header {
    margin-bottom: 1.8rem;
  }

  .proposal-title {
    font-size: clamp(1.35rem, 6vw, 1.7rem);
    margin-bottom: 1rem;
  }

  .meta-row {
    grid-template-columns: 1fr;
    gap: 0.1rem;
  }
  .meta-row + .meta-row { margin-top: 0.35rem; }

}