.revision-guide {
  --revision-navy: #17324d;
  --revision-blue: #2f6f8f;
  --revision-cream: #fffaf1;
  --revision-coral: #c85d4c;
}

.revision-guide__hero {
  grid-template-columns: minmax(0, 1.04fr) minmax(360px, .96fr);
  padding: clamp(1.25rem, 3vw, 2.2rem);
}

.revision-guide__hero-copy {
  padding: clamp(.4rem, 2vw, 1.3rem);
}

.revision-guide__hero .ai-page__lede strong {
  color: var(--ai-page-ink);
}

.revision-guide__byline {
  margin: 1.25rem 0 0;
  color: #597267;
  font-size: .86rem;
  line-height: 1.65;
}

.revision-guide__byline a {
  color: #355a4b;
}

.revision-guide__hero-media {
  position: relative;
  min-width: 0;
  margin: 0;
  overflow: hidden;
  border: 1px solid #c9e2d3;
  border-radius: 20px;
  background: #eaf6ef;
  box-shadow: 0 18px 42px rgba(18, 54, 43, .13);
}

.revision-guide__hero-media img {
  display: block;
  width: 100%;
  height: 100%;
  min-height: 440px;
  object-fit: cover;
  object-position: 61% center;
}

.revision-guide__hero-media figcaption {
  position: absolute;
  right: .8rem;
  bottom: .8rem;
  left: .8rem;
  padding: .62rem .75rem;
  border: 1px solid rgba(255, 255, 255, .52);
  border-radius: 10px;
  background: rgba(8, 34, 25, .8);
  color: #f3fbf6;
  font-size: .78rem;
  line-height: 1.45;
  backdrop-filter: blur(6px);
}

.revision-guide__contents {
  margin: 1.2rem auto 0;
  padding: 1.25rem clamp(1.1rem, 3vw, 1.8rem);
  border: 1px solid var(--ai-page-border);
  border-radius: 16px;
  background: #fff;
  box-shadow: 0 8px 24px rgba(18, 54, 43, .045);
}

.revision-guide__contents h2 {
  margin: 0;
  color: var(--ai-page-ink);
  font-size: clamp(1.2rem, 2.3vw, 1.55rem);
  letter-spacing: -.015em;
}

.revision-guide__contents ol {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: .45rem 1.5rem;
  margin: 1rem 0 0;
  padding-left: 1.2rem;
}

.revision-guide__contents li {
  padding-left: .15rem;
  color: #72847c;
  font-size: .84rem;
  line-height: 1.45;
}

.revision-guide__contents a {
  color: #365b4d;
}

.revision-guide__section {
  max-width: 900px;
  margin-right: auto;
  margin-left: auto;
  scroll-margin-top: 1.2rem;
}

.revision-guide__section--wide {
  max-width: none;
}

.revision-guide__section > p,
.revision-guide__section > ul,
.revision-guide__section > ol,
.revision-guide__section td,
.revision-guide__section th {
  font-size: 1rem;
}

.revision-guide__section > p,
.revision-guide__section li {
  color: #435f54;
  line-height: 1.72;
}

.revision-guide__section > p + p {
  margin-top: 1rem;
}

.revision-guide__answer {
  margin-top: 1.35rem;
  padding: 1.05rem 1.2rem;
  border-left: 5px solid var(--ai-page-green);
  border-radius: 0 12px 12px 0;
  background: var(--ai-page-mint);
  color: #284d3e !important;
  font-size: 1.05rem !important;
  line-height: 1.72;
}

.revision-guide__cycle {
  margin: 2rem 0;
  padding: clamp(1rem, 3vw, 1.5rem);
  border: 1px solid #cfe6d8;
  border-radius: 20px;
  background:
    radial-gradient(circle at 5% 2%, rgba(34, 198, 112, .12), transparent 30%),
    #fff;
  box-shadow: 0 12px 28px rgba(18, 54, 43, .055);
}

.revision-guide__cycle ol {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: .55rem;
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: revision-cycle;
}

.revision-guide__cycle li {
  position: relative;
  min-width: 0;
  padding: .9rem .72rem;
  border-radius: 12px;
  background: #eff9f3;
  counter-increment: revision-cycle;
}

.revision-guide__cycle li::before {
  display: grid;
  width: 1.75rem;
  height: 1.75rem;
  place-items: center;
  margin-bottom: .6rem;
  border-radius: 50%;
  background: var(--ai-page-green);
  color: #fff;
  content: counter(revision-cycle);
  font-size: .78rem;
  font-weight: 850;
}

.revision-guide__cycle li:not(:last-child)::after {
  position: absolute;
  z-index: 2;
  top: 50%;
  right: -.53rem;
  color: var(--ai-page-green);
  content: "\2192";
  font-size: 1.1rem;
  font-weight: 900;
  transform: translateY(-50%);
}

.revision-guide__cycle strong,
.revision-guide__cycle span {
  display: block;
}

.revision-guide__cycle strong {
  color: var(--ai-page-ink);
  font-size: .95rem;
}

.revision-guide__cycle span {
  margin-top: .25rem;
  color: var(--ai-page-muted);
  font-size: .78rem;
  line-height: 1.4;
}

.revision-guide__cycle figcaption {
  margin-top: .85rem;
  color: #60786d;
  font-size: .78rem;
  line-height: 1.45;
}

.revision-guide__skill-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: .65rem;
  margin: 1.35rem 0;
}

.revision-guide__skill-grid span {
  display: flex;
  min-height: 66px;
  align-items: center;
  padding: .8rem .9rem;
  border: 1px solid #d7e9df;
  border-radius: 11px;
  background: #fff;
  color: #244b3c;
  font-size: .88rem;
  font-weight: 750;
  line-height: 1.35;
}

.revision-guide__evidence-note {
  padding: 1rem 1.1rem;
  border: 1px solid #d8e6ef;
  border-left: 5px solid var(--revision-blue);
  border-radius: 0 12px 12px 0;
  background: #f5f9fc;
  color: #3c5968 !important;
  font-size: .92rem !important;
}

.revision-guide__contrast {
  display: grid;
  grid-template-columns: minmax(0, .8fr) 42px minmax(0, 1.2fr);
  gap: .8rem;
  align-items: stretch;
  margin: 1.5rem 0;
}

.revision-guide__contrast-item {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 1.2rem;
  border: 1px solid #e3e7e5;
  border-radius: 14px;
}

.revision-guide__contrast-item--weak {
  background: #fff8f5;
}

.revision-guide__contrast-item--useful {
  border-color: #c8e6d5;
  background: #effaf4;
}

.revision-guide__contrast-item > span {
  margin-bottom: .5rem;
  color: #71847b;
  font-size: .7rem;
  font-weight: 850;
  letter-spacing: .07em;
  text-transform: uppercase;
}

.revision-guide__contrast-item strong {
  color: var(--ai-page-ink);
  font-size: 1rem;
}

.revision-guide__contrast-item strong + strong {
  margin-top: .35rem;
}

.revision-guide__contrast-item p {
  margin: .55rem 0 0;
  color: var(--ai-page-muted);
  font-size: .86rem;
  line-height: 1.5;
}

.revision-guide__contrast-arrow {
  display: grid;
  place-items: center;
  color: var(--ai-page-green);
  font-size: 1.6rem;
  font-weight: 900;
}

.revision-guide__table td:first-child {
  width: 21%;
}

.revision-guide__method {
  display: grid;
  gap: .7rem;
  margin: 1.5rem 0;
  padding: 0;
  list-style: none;
  counter-reset: calculation-step;
}

.revision-guide__method li {
  display: grid;
  grid-template-columns: 2.2rem minmax(150px, .42fr) minmax(0, 1fr);
  gap: .8rem;
  align-items: start;
  padding: .85rem 1rem;
  border: 1px solid #d9e9e0;
  border-radius: 12px;
  background: #fff;
  counter-increment: calculation-step;
}

.revision-guide__method li::before {
  display: grid;
  width: 2rem;
  height: 2rem;
  place-items: center;
  border-radius: 50%;
  background: #e0f4e8;
  color: var(--ai-page-green);
  content: counter(calculation-step);
  font-weight: 850;
}

.revision-guide__method strong {
  padding-top: .2rem;
  color: var(--ai-page-ink);
}

.revision-guide__method span {
  padding-top: .2rem;
}

.revision-guide__example-pair {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
  margin: 1.5rem 0;
}

.revision-guide__example-pair article {
  padding: 1.2rem;
  border: 1px solid var(--ai-page-border);
  border-radius: 14px;
  background: #fff;
}

.revision-guide__example-pair article:last-child {
  border-color: #b9deca;
  background: #effaf4;
}

.revision-guide__example-pair h3 {
  margin: 0;
  font-size: 1.08rem;
}

.revision-guide__example-pair article > p:last-child {
  margin: .6rem 0 0;
  color: var(--ai-page-muted);
  line-height: 1.6;
}

.revision-guide__error-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: .8rem;
  margin: 1.5rem 0;
}

.revision-guide__error-grid article {
  display: grid;
  grid-template-columns: 2.5rem minmax(0, 1fr);
  gap: .7rem;
  padding: 1rem;
  border: 1px solid #d7e8df;
  border-radius: 13px;
  background: #fff;
}

.revision-guide__error-grid article > span {
  display: grid;
  width: 2.3rem;
  height: 2.3rem;
  place-items: center;
  border-radius: 9px;
  background: #e2f4ea;
  color: var(--ai-page-green);
  font-weight: 900;
}

.revision-guide__error-grid h3 {
  margin: 0;
  font-size: .95rem;
}

.revision-guide__error-grid p {
  margin: .35rem 0 0;
  color: var(--ai-page-muted);
  font-size: .8rem;
  line-height: 1.45;
}

.revision-guide__correction-box {
  margin: 1.5rem 0;
  padding: 1.2rem 1.3rem;
  border: 1px solid #ead9b9;
  border-radius: 14px;
  background: var(--revision-cream);
}

.revision-guide__correction-box h3 {
  margin: 0;
  font-size: 1.08rem;
}

.revision-guide__correction-box ol {
  margin: .8rem 0 0;
  padding-left: 1.2rem;
}

.revision-guide__correction-box li + li {
  margin-top: .45rem;
}

.revision-guide__soft-cta {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 1.2rem;
  align-items: center;
  margin-top: 2rem;
  padding: 1.3rem;
  border-radius: 16px;
  background: #153c30;
  color: #dceee3;
}

.revision-guide__soft-cta h3 {
  margin: 0;
  color: #fff;
  font-size: clamp(1.25rem, 2.6vw, 1.7rem);
}

.revision-guide__soft-cta p:not(.ai-page__eyebrow) {
  margin: .55rem 0 0;
  color: #c9dfd2;
  line-height: 1.55;
}

.revision-guide__reasoning-chain {
  display: grid;
  grid-template-columns: 1fr auto 1fr auto 1fr;
  gap: .7rem;
  align-items: center;
  margin: 1.5rem 0;
}

.revision-guide__reasoning-chain > span {
  min-height: 122px;
  padding: 1rem;
  border: 1px solid #d5e8dc;
  border-radius: 14px;
  background: #f1faf5;
}

.revision-guide__reasoning-chain strong,
.revision-guide__reasoning-chain small {
  display: block;
}

.revision-guide__reasoning-chain strong {
  color: var(--ai-page-green);
  font-size: 1.2rem;
}

.revision-guide__reasoning-chain small {
  margin-top: .45rem;
  color: #4f6c60;
  font-size: .82rem;
  line-height: 1.45;
}

.revision-guide__reasoning-chain b {
  color: var(--ai-page-green);
  font-size: 1.3rem;
}

.revision-guide__check-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: .65rem;
  margin: 1.4rem 0;
  padding: 0;
  list-style: none;
}

.revision-guide .revision-guide__section .revision-guide__check-list > li {
  display: block;
  position: relative;
  padding: .85rem .9rem .85rem 2.6rem;
  border: 1px solid #dceae2;
  border-radius: 11px;
  background: #fff;
  font-size: 16px !important;
  font-weight: 400 !important;
  line-height: 1.6;
}

.revision-guide .revision-guide__section .revision-guide__check-list > li > strong {
  font-size: 16px !important;
  line-height: inherit;
}

.revision-guide__check-list li::before {
  position: absolute;
  top: .88rem;
  left: .9rem;
  color: var(--ai-page-green);
  content: "\2713";
  font-weight: 900;
}

.revision-guide__practical-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: .8rem;
  margin: 1.5rem 0;
}

.revision-guide__practical-grid article {
  padding: 1rem;
  border: 1px solid #d8e8e0;
  border-radius: 13px;
  background: #fff;
}

.revision-guide__practical-grid h3 {
  margin: 0;
  font-size: 1rem;
}

.revision-guide__practical-grid p {
  margin: .5rem 0 0;
  color: var(--ai-page-muted);
  font-size: .86rem;
  line-height: 1.55;
}

.revision-guide__stage-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: .8rem;
  margin: 1.5rem 0;
}

.revision-guide__stage-grid article {
  padding: 1.1rem;
  border: 1px solid #d6e8de;
  border-radius: 14px;
  background: #fff;
}

.revision-guide__stage-grid article:nth-child(2) {
  background: #f1faf5;
}

.revision-guide__stage-grid article:nth-child(3) {
  border-color: #b9d9cb;
  background: #e7f5ed;
}

.revision-guide__stage-grid span {
  color: var(--ai-page-green);
  font-size: .7rem;
  font-weight: 850;
  letter-spacing: .07em;
  text-transform: uppercase;
}

.revision-guide__stage-grid h3 {
  margin: .45rem 0 0;
  font-size: 1.08rem;
}

.revision-guide__stage-grid p {
  margin: .55rem 0 0;
  color: var(--ai-page-muted);
  font-size: .86rem;
  line-height: 1.55;
}

.revision-guide__timeline {
  display: grid;
  gap: .75rem;
  margin: 1.5rem 0;
  padding: 0;
  list-style: none;
}

.revision-guide__timeline li {
  display: grid;
  grid-template-columns: 104px minmax(0, 1fr);
  gap: 1rem;
  overflow: hidden;
  border: 1px solid #d8e7df;
  border-radius: 13px;
  background: #fff;
}

.revision-guide__timeline time {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: .9rem .7rem;
  background: linear-gradient(145deg, #173c31, #1b7458);
  color: #fff;
  font-size: .82rem;
  font-weight: 800;
  text-align: center;
}

.revision-guide__timeline div {
  padding: .75rem 1rem .75rem 0;
}

.revision-guide__timeline h3 {
  margin: 0;
  font-size: 1rem;
}

.revision-guide__timeline p {
  margin: .3rem 0 0;
  color: var(--ai-page-muted);
  font-size: .86rem;
  line-height: 1.5;
}

.revision-guide__disclosure {
  margin: 1.3rem 0;
  padding: .95rem 1.05rem;
  border-left: 5px solid #c1842e;
  border-radius: 0 10px 10px 0;
  background: #fff8ec;
  color: #665036 !important;
  font-size: .9rem !important;
}

.revision-guide__website-table td:first-child {
  width: 20%;
}

.revision-guide__publisher-badge {
  display: inline-block;
  margin-top: .35rem;
  padding: .18rem .4rem;
  border-radius: 999px;
  background: #dff4e8;
  color: #17664f;
  font-size: .64rem;
  font-weight: 850;
  letter-spacing: .03em;
  text-transform: uppercase;
}

.revision-guide__positioning-callout {
  margin-top: 1.4rem !important;
  padding: 1.15rem 1.25rem;
  border: 1px solid #b8dcc9;
  border-left: 6px solid var(--ai-page-green);
  border-radius: 0 14px 14px 0;
  background: linear-gradient(135deg, #edf9f2 0%, #fff 100%);
  box-shadow: 0 10px 26px rgba(18, 54, 43, .08);
  font-size: 16px !important;
}

.revision-guide__positioning-callout > strong {
  display: block;
  margin-bottom: .35rem;
  color: #143e31;
  font-size: 20px !important;
  line-height: 1.35;
}

.revision-guide__final-cta {
  margin-right: auto;
  margin-left: auto;
}

.revision-guide__sources h3 + ul {
  margin-bottom: 1.2rem;
}

/* Override the legacy site-wide `ul li` rule for article reference lists. */
.revision-guide .revision-guide__sources > ul > li {
  display: list-item;
  padding: 0;
  font-size: 16px !important;
  font-weight: 400 !important;
  line-height: 1.6;
}

.revision-guide__sources h3:not(:first-child) {
  margin-top: 1.2rem;
}

.revision-guide__author-box {
  display: grid;
  grid-template-columns: 3.5rem minmax(0, 1fr);
  gap: 1rem;
  margin-top: 1rem;
  padding: 1.2rem;
  border: 1px solid var(--ai-page-border);
  border-radius: 14px;
  background: #fff;
}

.revision-guide__author-mark {
  display: grid;
  width: 3.3rem;
  height: 3.3rem;
  place-items: center;
  border-radius: 50%;
  background: #163d31;
  color: #fff;
  font-size: 1.25rem;
  font-weight: 900;
}

.revision-guide__author-box h3 {
  margin: 0;
  font-size: 1.05rem;
}

.revision-guide__author-box p {
  margin: .45rem 0 0;
  color: var(--ai-page-muted);
  font-size: .88rem;
  line-height: 1.6;
}

@media (max-width: 980px) {
  .revision-guide__hero {
    grid-template-columns: 1fr;
  }

  .revision-guide__hero-media img {
    min-height: 340px;
    max-height: 480px;
  }

  .revision-guide__contents ol {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .revision-guide__cycle ol,
  .revision-guide__error-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .revision-guide__cycle li:nth-child(3)::after {
    display: none;
  }
}

@media (max-width: 760px) {
  .revision-guide__skill-grid,
  .revision-guide__error-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .revision-guide__practical-grid,
  .revision-guide__stage-grid {
    grid-template-columns: 1fr;
  }

  .revision-guide__method li {
    grid-template-columns: 2.2rem minmax(0, 1fr);
  }

  .revision-guide__method span {
    grid-column: 2;
    padding-top: 0;
  }

  .revision-guide__reasoning-chain {
    grid-template-columns: 1fr;
  }

  .revision-guide__reasoning-chain > span {
    min-height: 0;
  }

  .revision-guide__reasoning-chain b {
    text-align: center;
    transform: rotate(90deg);
  }

  .revision-guide__soft-cta {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 560px) {
  .revision-guide__hero-copy {
    padding: 0;
  }

  .revision-guide__hero-media img {
    min-height: 280px;
    object-position: 62% center;
  }

  .revision-guide__contents {
    padding: 1rem;
  }

  .revision-guide__contents ol,
  .revision-guide__cycle ol,
  .revision-guide__skill-grid,
  .revision-guide__error-grid,
  .revision-guide__example-pair,
  .revision-guide__check-list {
    grid-template-columns: 1fr;
  }

  .revision-guide .revision-guide__section .revision-guide__check-list > li,
  .revision-guide .revision-guide__section .revision-guide__check-list > li > strong {
    font-size: 15px !important;
  }

  .revision-guide .revision-guide__sources > ul > li {
    font-size: 15px !important;
  }

  .revision-guide__positioning-callout {
    padding: 1rem;
    font-size: 15px !important;
  }

  .revision-guide__positioning-callout > strong {
    font-size: 18px !important;
  }

  .revision-guide__cycle li:not(:last-child)::after {
    top: auto;
    right: 50%;
    bottom: -.72rem;
    transform: translateX(50%) rotate(90deg);
  }

  .revision-guide__contrast {
    grid-template-columns: 1fr;
  }

  .revision-guide__contrast-arrow {
    transform: rotate(90deg);
  }

  .revision-guide__timeline li {
    grid-template-columns: 1fr;
  }

  .revision-guide__timeline time {
    justify-content: flex-start;
  }

  .revision-guide__timeline div {
    padding: .2rem 1rem 1rem;
  }

  .revision-guide__author-box {
    grid-template-columns: 1fr;
  }
}