/* RMM article: an editorial reading column with diagrams and compact comparisons. */
.rmm-header .ph-in {
  max-width: 1120px;
}
.rmm-header h1 {
  max-width: 900px;
  text-wrap: balance;
}
.rmm-header p {
  max-width: 760px;
}
.rmm-header .post-byline {
  margin-top: 22px;
}
.rmm-article-shell {
  display: grid;
  grid-template-columns: 190px minmax(0, 1fr);
  align-items: start;
  gap: 56px;
  max-width: 1120px;
}
.rmm-toc {
  position: sticky;
  top: 110px;
}
.rmm-toc > p {
  margin-bottom: 16px;
  color: var(--tx-3);
  font-family: var(--mono);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}
.rmm-toc ol {
  display: grid;
  gap: 4px;
}
.rmm-toc a {
  display: grid;
  grid-template-columns: 20px minmax(0, 1fr);
  gap: 10px;
  padding: 9px 0 9px 12px;
  border-left: 1px solid var(--line-2);
  color: var(--tx-3);
  font-size: 0.875rem;
  line-height: 1.45;
  transition: color 0.15s, border-color 0.15s;
}
.rmm-toc a span {
  padding-top: 2px;
  font-family: var(--mono);
  font-size: 0.7rem;
  color: var(--purple-600);
}
.rmm-toc a:hover {
  border-left-color: var(--purple-600);
  color: var(--purple-700);
}
.rmm-toc a:focus-visible {
  outline: 2px solid var(--purple-600);
  outline-offset: 4px;
  border-radius: 2px;
}
.rmm-post {
  min-width: 0;
  max-width: 760px;
}
.rmm-post p {
  margin: 0 0 18px;
  font-size: 1.025rem;
  line-height: 1.72;
}
.rmm-post .rmm-lead {
  font-size: 1.16rem;
  line-height: 1.65;
  color: var(--tx);
}
.rmm-section {
  margin-top: 44px;
  padding-top: 28px;
  border-top: 1px solid var(--line-2);
  scroll-margin-top: 105px;
}
.rmm-post .rmm-section h2 {
  margin: 0 0 22px;
  font-size: clamp(1.5rem, 2.15vw, 1.9rem);
  line-height: 1.18;
  text-wrap: balance;
}
.rmm-section-number {
  display: block;
  margin-bottom: 12px;
  font-family: var(--mono);
  font-size: 0.75rem;
  font-weight: 600;
  line-height: 1;
  letter-spacing: 0.05em;
  color: var(--purple-600);
}
.rmm-post .rmm-section > h3 {
  margin: 30px 0 12px;
  font-size: 1.15rem;
  line-height: 1.3;
}

.rmm-post .rmm-proof > li::before {
  content: none;
}

/* Comparison rows keep the decision and its evidence on the same line. */
.rmm-context {
  margin: 24px 0;
  border-top: 1px solid var(--line-2);
}
.rmm-context > div {
  display: grid;
  grid-template-columns: 180px minmax(0, 1fr);
  gap: 24px;
  padding: 16px 0;
  border-bottom: 1px solid var(--line-2);
}
.rmm-context dt,
.rmm-roles dt {
  color: var(--tx);
  font-size: 0.975rem;
  font-weight: 700;
  line-height: 1.5;
}
.rmm-context dd,
.rmm-roles dd {
  margin: 0;
  font-size: 0.975rem;
  line-height: 1.6;
}
.rmm-roles {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
  margin: 26px 0;
}
.rmm-roles > div {
  padding-top: 15px;
  border-top: 2px solid var(--line-2);
}
.rmm-roles dt {
  margin-bottom: 8px;
}
.rmm-post blockquote p {
  margin: 0;
}

/* Controller and device agent share one execution boundary. */
.rmm-figure {
  margin: 26px 0;
  padding: 23px;
  border: 1px solid var(--line-2);
  border-radius: var(--r);
  background: var(--paper-2);
}
.rmm-figure figcaption {
  margin-top: 18px;
  font-size: 0.875rem;
  line-height: 1.6;
  color: var(--tx-3);
}
.rmm-sources {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--line-2);
}
.rmm-sources span {
  padding: 5px 9px;
  border: 1px solid var(--line-2);
  border-radius: 4px;
  background: var(--paper);
  font-size: 0.8125rem;
  line-height: 1.5;
}
.rmm-control {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 78px minmax(0, 1fr);
  align-items: stretch;
  margin-top: 20px;
}
.rmm-node {
  min-width: 0;
  padding: 17px;
  border: 1px solid var(--line-2);
  border-radius: var(--r-sm);
  background: var(--paper);
}
.rmm-node.is-controller {
  border-top: 3px solid var(--purple-600);
}
.rmm-post .rmm-node h3 {
  margin: 0 0 10px;
  font-size: 1.06rem;
}
.rmm-post .rmm-node p {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.6;
}
.rmm-link {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 3px;
  padding: 10px 6px;
  font-size: 0.8125rem;
  line-height: 1.4;
  text-align: center;
  color: var(--purple-700);
}
.rmm-link b {
  font-size: 1.5rem;
  font-weight: 500;
}
.rmm-gate {
  margin-top: 18px;
  padding: 12px 16px;
  border-left: 3px solid var(--purple-600);
  background: var(--purple-50);
  font-size: 0.9375rem;
  line-height: 1.6;
}
.rmm-feedback {
  padding-top: 16px;
  text-align: center;
  color: var(--purple-700);
  font-size: 0.8125rem;
  line-height: 1.5;
}
.rmm-table-wrap {
  margin: 24px 0;
}
.rmm-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9375rem;
  line-height: 1.6;
  text-align: left;
}
.rmm-table caption {
  margin-bottom: 12px;
  text-align: left;
  font-weight: 700;
  color: var(--tx);
}
.rmm-table th,
.rmm-table td {
  padding: 14px 15px;
  border-bottom: 1px solid var(--line-2);
  text-align: left;
  vertical-align: top;
}
.rmm-table thead {
  background: var(--paper-3);
  color: var(--tx);
}
.rmm-table tbody th {
  width: 27%;
  color: var(--tx);
}
.rmm-table td b {
  color: var(--tx);
}
.rmm-post .rmm-proof {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
  margin: 27px 0;
  padding: 0;
}
.rmm-post .rmm-proof > li {
  padding: 16px 0 0;
  border-top: 2px solid var(--line-2);
}
.rmm-proof > li > span {
  display: block;
  margin-bottom: 8px;
  font-family: var(--mono);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.025em;
  text-transform: uppercase;
  color: var(--purple-600);
}
.rmm-proof > li > strong {
  display: block;
  margin-bottom: 8px;
  font-size: 1rem;
  line-height: 1.4;
}
.rmm-post .rmm-proof p {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.6;
}

@media (max-width: 1000px) {
  .rmm-header .ph-in,
  .rmm-article-shell {
    max-width: 820px;
  }
  .rmm-article-shell {
    grid-template-columns: minmax(0, 1fr);
    gap: 36px;
  }
  .rmm-toc {
    position: static;
    padding-bottom: 24px;
    border-bottom: 1px solid var(--line-2);
  }
  .rmm-toc ol {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 6px 18px;
  }
  .rmm-toc a {
    padding: 7px 0;
    border: 0;
  }
  .rmm-toc > p {
    margin-bottom: 12px;
  }
}
@media (max-width: 680px) {
  .rmm-header {
    padding-top: 40px;
    padding-bottom: 38px;
  }
  .rmm-header h1 {
    font-size: clamp(2rem, 7.8vw, 2.65rem);
    line-height: 1.08;
  }
  .rmm-toc ol {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 4px 18px;
  }
  .rmm-toc a {
    grid-template-columns: 18px minmax(0, 1fr);
    gap: 7px;
  }
  .rmm-post p {
    font-size: 1rem;
    line-height: 1.7;
  }
  .rmm-post .rmm-lead {
    font-size: 1.08rem;
  }
  .rmm-section {
    margin-top: 38px;
    padding-top: 26px;
    scroll-margin-top: 90px;
  }
  .rmm-post .rmm-section h2 {
    margin-bottom: 18px;
    text-wrap: pretty;
  }
  .rmm-context > div {
    grid-template-columns: minmax(0, 1fr);
    gap: 5px;
    padding: 14px 0;
  }
  .rmm-roles,
  .rmm-post .rmm-proof {
    grid-template-columns: minmax(0, 1fr);
    gap: 18px;
  }
  .rmm-roles dt,
  .rmm-proof > li > strong {
    margin-bottom: 5px;
  }
  .rmm-figure {
    padding: 16px;
  }
  .rmm-control {
    grid-template-columns: minmax(0, 1fr);
  }
  .rmm-link b {
    transform: rotate(90deg);
  }
  .rmm-link {
    padding: 10px;
  }
  .rmm-table th,
  .rmm-table td {
    padding: 12px 8px;
    overflow-wrap: anywhere;
  }
  .rmm-table tbody th {
    width: 30%;
  }
}
@media (max-width: 360px) {
  .rmm-page .hdr-in {
    gap: 8px;
  }
  .rmm-page .brand-lockup span {
    font-size: 0.625rem;
    letter-spacing: 0;
  }
  .rmm-page .hdr-cta .btn {
    padding-inline: 14px;
  }
}