:root {
  --detail-page-bg: #f6f6f6;
  --detail-text: #000000;
  --detail-muted: #737373;
  --detail-border: #d1d1d1;
  --detail-card: #ffffff;
  --detail-pink: #e83c66;
  --detail-pink-soft: #fcf0f3;
  --detail-blue: #344b63;
  --detail-yellow: #fcc031;
  --detail-yellow-soft: #fff9ec;
  --detail-beige: #fff5de;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
}

body.kampus-detail-page {
  background: var(--detail-page-bg);
  color: var(--detail-text);
  font-family: "Open Sans", sans-serif;
  overflow-x: hidden;
}

img {
  display: block;
  max-width: 100%;
}

a {
  color: inherit;
  text-decoration: none;
}

button,
input,
select,
textarea {
  font: inherit;
}

.container-block {
  margin: 0 auto;
  width: min(1200px, calc(100% - 32px));
}

.kampus-detail-main {
  padding-bottom: 24px;
}

.kampus-detail-page .site-footer {
  margin-top: 48px;
}

.detail-top-banner {
  background: var(--detail-beige);
  padding: 56px 0 47px;
}

.detail-breadcrumb {
  align-items: center;
  color: #1f2937;
  display: flex;
  font-size: 18px;
  font-weight: 400;
  gap: 14px;
  line-height: 28px;
  margin-bottom: 20px;
}

.detail-breadcrumb .crumb-sep {
  color: #1f2937;
  font-size: 24px;
  line-height: 1;
  margin-top: -2px;
}

.detail-top-banner h1 {
  font-size: 52px;
  font-weight: 600;
  letter-spacing: -1.04px;
  line-height: 56px;
  margin: 0;
  max-width: 1031px;
}

.detail-meta {
  color: #2c2c2c;
  font-size: 18px;
  font-weight: 400;
  line-height: 28px;
  margin: 27px 0 0;
}

.guide-card {
  align-items: center;
  background: var(--detail-card);
  border: 1.4px solid #e7e7e7;
  border-radius: 16px;
  box-shadow: 0 1px 3px rgba(16, 24, 40, 0.1);
  display: grid;
  gap: 16px;
  grid-template-columns: 228px minmax(0, 1fr);
  margin-top: 22px;
  max-width: 650px;
  min-height: 161px;
  padding: 13px 10px 12px;
  transition:
    box-shadow 280ms ease,
    transform 280ms ease;
}

.guide-card:hover {
  box-shadow: 0 10px 30px rgba(11, 30, 40, 0.12);
  transform: translateY(-2px);
}

.guide-card figure {
  border-radius: 8px;
  margin: 0;
  overflow: hidden;
}

.guide-card figure img {
  height: 135px;
  object-fit: cover;
  width: 100%;
}

.guide-card-content h2 {
  font-size: 16px;
  font-weight: 600;
  letter-spacing: -0.32px;
  line-height: 20px;
  margin: 0 0 8px;
}

.guide-card-content p {
  color: #0b1e28;
  font-size: 15px;
  font-weight: 400;
  line-height: 24px;
  margin: 0 0 8px;
}

.guide-card-btn {
  align-items: center;
  background: #fcbf31;
  border-radius: 10px;
  box-shadow:
    0 4px 4px rgba(0, 0, 0, 0.25),
    inset 0 4px 4px rgba(0, 0, 0, 0.25);
  color: #ffffff;
  display: inline-flex;
  font-size: 20px;
  font-weight: 700;
  line-height: 32px;
  min-height: 41px;
  padding: 4px 15px;
  transition:
    filter 220ms ease,
    transform 220ms ease;
}

.guide-card-btn:hover {
  filter: brightness(0.95);
  transform: translateY(-1px);
}

.article-hero {
  padding: 40px 0 64px;
}

.hero-grid {
  align-items: center;
  display: grid;
  gap: 126px;
  grid-template-columns: 486px 588px;
}

.article-hero-text {
  display: flex;
  flex-direction: column;
  gap: 32px;
  justify-content: center;
}

.article-hero-text h2 {
  font-size: 52px;
  font-weight: 600;
  letter-spacing: -1.04px;
  line-height: 56px;
  margin: 0;
}

.article-hero-text p {
  color: #181c22;
  font-size: 18px;
  font-weight: 400;
  line-height: 28px;
  margin: 0;
}

.article-download-btn {
  align-items: center;
  border: 1px solid #0b1e28;
  border-radius: 64px;
  color: #0b1e28;
  display: inline-flex;
  font-size: 20px;
  font-weight: 600;
  gap: 6px;
  letter-spacing: -0.4px;
  line-height: 28px;
  min-height: 52px;
  padding: 12px 24px;
  transition:
    background-color 220ms ease,
    color 220ms ease;
  width: fit-content;
}

.article-download-btn:hover {
  background: #0b1e28;
  color: #ffffff;
}

.article-download-btn:hover img {
  filter: brightness(0) invert(1);
}

.article-download-btn:empty {
  display: none;
}

.article-hero-media {
  border-radius: 12px;
  box-shadow: 0 1px 3px rgba(16, 24, 40, 0.1);
  margin: 0;
  overflow: hidden;
}

.article-hero-media img {
  display: block;
  height: 462px;
  object-fit: cover;
  width: 588px;
}

.detail-article {
  align-items: start;
  display: grid;
  gap: 128px;
  grid-template-columns: 280px 792px;
}

.article-sidebar {
  display: flex;
  flex-direction: column;
  gap: 28px;
  margin-top: 16px;
  max-height: calc(100vh - 32px);
  overflow-y: auto;
  position: sticky;
  top: 16px;
}

.author-card,
.toc-card,
.sidebar-promo {
  background: #ffffff;
  border: 1px solid #e7e7e7;
  border-radius: 12px;
  box-shadow: 0 1px 3px rgba(16, 24, 40, 0.1);
}

.author-card {
  min-height: 278px;
  padding: 14px 24px 20px;
}

.author-head {
  align-items: center;
  display: flex;
  gap: 12px;
  margin-bottom: 12px;
}

.author-head figure {
  border-radius: 50%;
  height: 62px;
  margin: 0;
  overflow: hidden;
  width: 62px;
}

.author-head figure img {
  height: 100%;
  object-fit: cover;
  width: 100%;
}

.author-meta h3 {
  font-size: 18px;
  font-weight: 400;
  line-height: 28px;
  margin: 0;
}

.author-bio {
  color: #737373;
  font-size: 12px;
  font-weight: 400;
  line-height: 18px;
  margin: 0 0 14px;
}

.author-share-label {
  font-size: 12px;
  font-weight: 400;
  line-height: 19px;
  margin: 0 0 8px;
}

.author-share {
  display: flex;
  gap: 12px;
}

.author-share a {
  align-items: center;
  background: #344b63;
  border-radius: 10px;
  display: inline-flex;
  height: 36px;
  justify-content: center;
  transition: transform 200ms ease;
  width: 36px;
}

.author-share a:hover {
  transform: translateY(-1px);
}

.author-share img {
  filter: brightness(0) invert(1);
}

.toc-card {
  padding: 32px;
  position: static;
}

.toc-head {
  align-items: center;
  appearance: none;
  background: transparent;
  border: 0;
  color: #181c22;
  cursor: default;
  display: flex;
  font: inherit;
  justify-content: space-between;
  line-height: 1;
  margin: 0;
  padding: 0;
  width: 100%;
}

.toc-head span {
  font-size: 18px;
  font-weight: 400;
  line-height: 28px;
}

.toc-head img {
  display: none;
  transition: transform 280ms ease;
}

.toc-progress-wrap {
  margin-top: 16px;
}

.toc-progress-text {
  color: #737373;
  display: flex;
  font-size: 12px;
  font-weight: 400;
  justify-content: space-between;
  line-height: 18px;
}

.toc-progress-track {
  background: #e7e7e7;
  border-radius: 16777200px;
  height: 8px;
  margin-top: 8px;
  overflow: hidden;
}

.toc-progress-bar {
  background: linear-gradient(81.46deg, #e83c66 0%, #e74e73 100%);
  border-radius: inherit;
  height: 100%;
  transition: width 280ms ease;
  width: 0%;
}

.toc-list {
  display: grid;
  gap: 8px;
  list-style: none;
  margin: 16px 0 0;
  padding: 0;
}

.toc-list a {
  border-radius: 10px;
  color: #314158;
  display: block;
  font-family: "Inter", sans-serif;
  font-size: 14px;
  font-weight: 400;
  line-height: 20px;
  padding: 8px 16px;
  transition:
    background-color 220ms ease,
    color 220ms ease;
}

.toc-list a.is-active {
  background: #fcf0f3;
  color: #e83c66;
  font-weight: 500;
}

.toc-list a:hover {
  background: #f6f6f8;
}

.sidebar-promo {
  background: #ffdae2;
  min-height: 202px;
  padding: 20px 25px 21px;
  text-align: center;
}

.sidebar-promo h3 {
  font-size: 48px;
  font-weight: 700;
  letter-spacing: -0.72px;
  line-height: 48px;
  margin: 0 0 12px;
}

.sidebar-promo p {
  font-size: 14px;
  font-weight: 600;
  line-height: 21px;
  margin: 0 0 16px;
}

.sidebar-promo a {
  align-items: center;
  background: #fc3164;
  border-radius: 10px;
  box-shadow:
    0 4px 4px rgba(0, 0, 0, 0.25),
    inset 0 4px 4px rgba(0, 0, 0, 0.25);
  color: #ffffff;
  display: inline-flex;
  font-size: 20px;
  font-weight: 700;
  justify-content: center;
  line-height: 32px;
  min-height: 41px;
  padding: 6px 18px;
  transition: transform 220ms ease;
}

.sidebar-promo a:hover {
  transform: translateY(-1px);
}

.article-content {
  display: flex;
  flex-direction: column;
  gap: 64px;
}

.detail-section h3,
.featured-content-block h3,
.article-share h3,
.related-resources h3 {
  font-size: 36px;
  font-weight: 400;
  letter-spacing: -0.72px;
  line-height: 44px;
  margin: 0 0 24px;
}

.summary-grid {
  display: grid;
  gap: 24px;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.summary-grid article {
  align-items: center;
  background: #fcf0f3;
  border: 1px solid #fcf0f3;
  border-radius: 12px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  justify-content: center;
  min-height: 164px;
  padding: 32px;
  text-align: center;
  transition:
    box-shadow 240ms ease,
    transform 240ms ease;
}

.summary-grid article:hover {
  box-shadow: 0 10px 20px rgba(52, 75, 99, 0.12);
  transform: translateY(-3px);
}

.summary-grid span {
  color: #454545;
  font-size: 18px;
  font-weight: 400;
  line-height: 28px;
}

.summary-grid strong {
  color: #000000;
  font-size: 18px;
  font-weight: 600;
  line-height: 28px;
}

.summary-grid em {
  color: #454545;
  font-size: 18px;
  font-style: normal;
  font-weight: 400;
  line-height: 28px;
}

.meaning-box {
  background: #f8fafc;
  border-left: 4px solid #0f172b;
  border-radius: 0 12px 12px 0;
  margin-bottom: 24px;
  padding: 32px;
}

.meaning-box p {
  font-size: 18px;
  font-weight: 400;
  line-height: 28px;
  margin: 0;
}

.meaning-box p + p {
  margin-top: 12px;
}

.meaning-box strong {
  font-weight: 600;
}

.check-list {
  display: grid;
  gap: 16px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.check-list li {
  font-size: 18px;
  font-weight: 400;
  line-height: 28px;
  padding-left: 32px;
  position: relative;
}

.check-list li::before {
  color: #16a34a;
  content: "✓";
  font-size: 20px;
  font-weight: 700;
  left: 0;
  line-height: 20px;
  position: absolute;
  top: 4px;
}

.two-col-layout {
  align-items: start;
  display: grid;
  gap: 24px;
  grid-template-columns: 410px 358px;
}

.two-col-left p {
  font-size: 18px;
  font-weight: 400;
  line-height: 28px;
  margin: 0 0 16px;
}

.two-col-left p strong {
  font-weight: 600;
}

.two-col-left ul {
  margin: 0;
  padding-left: 24px;
}

.two-col-left li {
  font-size: 18px;
  font-weight: 400;
  line-height: 28px;
  margin: 0;
}

.examples-box {
  background: #fff9ec;
  border: 1px solid #ffe5a8;
  border-radius: 12px;
  padding: 32px;
}

.examples-box h4 {
  color: #2b2108;
  font-size: 18px;
  font-weight: 400;
  line-height: 28px;
  margin: 0 0 16px;
  padding-left: 28px;
  position: relative;
}

.examples-box h4::before {
  color: #fcc031;
  content: "❞";
  font-size: 20px;
  left: 0;
  line-height: 20px;
  position: absolute;
  top: 4px;
}

.examples-box p {
  color: #2b2108;
  font-size: 16px;
  font-weight: 400;
  line-height: 24px;
  margin: 0;
}

.examples-box p + p {
  margin-top: 16px;
}

.section-cta {
  align-items: center;
  background: var(--detail-pink);
  border-radius: 64px;
  color: #ffffff;
  display: inline-flex;
  font-size: 20px;
  font-weight: 600;
  gap: 6px;
  justify-content: center;
  letter-spacing: -0.4px;
  line-height: 28px;
  min-height: 52px;
  min-width: 299px;
  padding: 12px 24px;
  transition:
    box-shadow 260ms ease,
    transform 260ms ease;
}

#learn-past-participle .section-cta {
  margin: 24px auto 0;
}

#sample-sentences .section-cta {
  margin-top: 24px;
}

.section-cta:hover {
  box-shadow: 0 10px 24px rgba(232, 60, 102, 0.3);
  transform: translateY(-2px);
}

.section-cta img {
  filter: brightness(0) invert(1);
}

.grammar-table-wrap {
  border: 1px solid #d1d1d1;
  border-radius: 12px;
  overflow: hidden;
}

.grammar-table {
  border-collapse: collapse;
  table-layout: fixed;
  width: 100%;
}

.grammar-table thead th {
  background: #e83c66;
  color: #ffffff;
  font-size: 20px;
  font-weight: 600;
  letter-spacing: -0.4px;
  line-height: 28px;
  padding: 17px 24px;
  text-align: left;
}

.grammar-table tbody td {
  border-top: 1px solid #d1d1d1;
  font-size: 18px;
  font-weight: 400;
  line-height: 28px;
  padding: 24px;
}

.grammar-table tbody td + td {
  border-left: 1px solid #d1d1d1;
}

.comparison-grid {
  display: grid;
  gap: 24px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin-bottom: 24px;
}

.comparison-grid article {
  background: #ffffff;
  border: 1px solid #e7e7e7;
  border-radius: 12px;
  padding: 32px;
}

.comparison-grid h4 {
  font-size: 20px;
  font-weight: 700;
  letter-spacing: -0.4px;
  line-height: 28px;
  margin: 0 0 12px;
}

.comparison-grid strong {
  display: block;
  font-size: 24px;
  font-weight: 600;
  letter-spacing: -0.48px;
  line-height: 32px;
  margin-bottom: 16px;
}

.comparison-grid p {
  font-size: 18px;
  font-weight: 400;
  line-height: 28px;
  margin: 0;
}

.tip-box {
  background: #fff9ec;
  border: 1px solid #ffe5a8;
  border-radius: 12px;
  padding: 32px;
}

.tip-box h4 {
  color: #2b2108;
  font-size: 18px;
  font-weight: 600;
  line-height: 28px;
  margin: 0 0 8px;
  padding-left: 34px;
  position: relative;
}

.tip-box h4::before {
  color: #f2b01e;
  content: "💡";
  font-size: 24px;
  left: 0;
  line-height: 1;
  position: absolute;
  top: 2px;
}

.tip-box p {
  color: #2b2108;
  font-size: 16px;
  font-weight: 400;
  line-height: 24px;
  margin: 0;
}

.sentence-list {
  display: grid;
  gap: 16px;
}

.sentence-list article {
  background: #ffffff;
  border: 1px solid #e7e7e7;
  border-radius: 12px;
  padding: 32px;
}

.sentence-list p {
  color: #000000;
  font-size: 18px;
  font-weight: 400;
  line-height: 28px;
  margin: 0;
}

.sentence-list mark {
  background: #fcc031;
  border-radius: 4px;
  padding: 0 4px;
}

.sentence-list span {
  color: #454545;
  display: block;
  font-size: 16px;
  font-weight: 400;
  line-height: 24px;
  margin-top: 12px;
}

.mistakes-box {
  background: #fff9ec;
  border: 2px solid #ffe5a8;
  border-radius: 12px;
  padding: 32px;
}

.mistakes-box > h4 {
  color: #2b2108;
  font-size: 20px;
  font-weight: 400;
  letter-spacing: -0.4px;
  line-height: 28px;
  margin: 0 0 24px;
  padding-left: 32px;
  position: relative;
}

.mistakes-box > h4::before {
  content: "ⓘ";
  font-size: 24px;
  left: 0;
  line-height: 1;
  position: absolute;
  top: 1px;
}

.mistake-item + .mistake-item {
  margin-top: 24px;
}

.mistake-wrong,
.mistake-correct {
  border-radius: 12px;
  font-size: 18px;
  font-weight: 400;
  line-height: 28px;
  min-height: 52px;
  padding: 12px 16px 12px 48px;
  position: relative;
}

.mistake-wrong {
  background: #fef2f2;
  border: 1px solid #fecaca;
  color: #000000;
}

.mistake-wrong::before {
  color: #dc2626;
  content: "×";
  font-size: 34px;
  font-weight: 400;
  left: 16px;
  line-height: 1;
  position: absolute;
  top: 11px;
}

.mistake-correct {
  background: #f0fdf5;
  border: 1px solid #bbf7d1;
  color: #000000;
  margin-top: 8px;
}

.mistake-correct::before {
  color: #16a34a;
  content: "✓";
  font-size: 26px;
  font-weight: 700;
  left: 16px;
  line-height: 1;
  position: absolute;
  top: 13px;
}

.mistake-item p {
  color: #454545;
  font-size: 16px;
  font-weight: 400;
  line-height: 24px;
  margin: 8px 0 0;
}

.practice-grid {
  display: grid;
  gap: 24px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.practice-card {
  border-radius: 12px;
  padding: 32px;
}

.practice-card-pink {
  background: #fcf0f3;
  border: 1px solid #e8acbb;
}

.practice-card-blue {
  background: #f0f4f7;
  border: 1px solid #d2dde7;
}

.practice-card-yellow {
  background: #fff9ec;
  border: 1px solid #ffe5a8;
}

.practice-card h4 {
  color: #000000;
  font-size: 20px;
  font-weight: 400;
  letter-spacing: -0.4px;
  line-height: 28px;
  margin: 0 0 16px;
}

.practice-card ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

.practice-card li {
  color: #000000;
  font-size: 16px;
  font-weight: 400;
  line-height: 24px;
  padding-left: 26px;
  position: relative;
}

.practice-card li + li {
  margin-top: 8px;
}

.practice-card li::before {
  content: "✓";
  font-size: 16px;
  left: 0;
  line-height: 24px;
  position: absolute;
  top: 0;
}

.practice-card-pink li::before {
  color: #e83c66;
}

.practice-card-blue li::before {
  color: #0b1e28;
}

.practice-card-yellow li::before {
  color: #2b2108;
}

.featured-content-card {
  background: #ffffff;
  border: 1px solid #e7e7e7;
  border-radius: 16px;
  box-shadow: 0 1px 3px rgba(16, 24, 40, 0.1);
  display: grid;
  gap: 24px;
  grid-template-columns: 304px minmax(0, 1fr);
  overflow: hidden;
  padding: 16px;
  transition:
    box-shadow 260ms ease,
    transform 260ms ease;
}

.featured-content-card:hover {
  box-shadow: 0 14px 28px rgba(11, 30, 40, 0.12);
  transform: translateY(-3px);
}

.featured-content-card figure {
  border-radius: 12px;
  margin: 0;
  overflow: hidden;
}

.featured-content-card figure img {
  height: 100%;
  min-height: 188px;
  object-fit: cover;
  width: 100%;
}

.featured-content-body {
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.featured-content-meta {
  align-items: center;
  color: #737373;
  display: inline-flex;
  font-size: 15px;
  font-weight: 400;
  gap: 8px;
  line-height: 22px;
  margin-bottom: 12px;
}

.featured-content-meta .meta-dot {
  background: #737373;
  border-radius: 50%;
  display: inline-block;
  height: 4px;
  width: 4px;
}

.featured-content-meta .meta-time {
  align-items: center;
  display: inline-flex;
  gap: 6px;
}

.featured-content-meta .meta-time img {
  height: 16px;
  width: 16px;
}

.featured-content-body h4 {
  font-size: 28px;
  font-weight: 600;
  letter-spacing: -0.56px;
  line-height: 36px;
  margin: 0;
}

.featured-content-body p {
  color: #2f2f2f;
  font-size: 18px;
  font-weight: 400;
  line-height: 28px;
  margin: 12px 0 16px;
  max-width: 430px;
}

.featured-content-link {
  align-items: center;
  color: #e83c66;
  display: inline-flex;
  font-size: 22px;
  font-weight: 600;
  gap: 8px;
  line-height: 28px;
  margin-top: auto;
  text-decoration: underline;
  text-decoration-thickness: 2px;
  text-underline-offset: 5px;
  width: fit-content;
}

.featured-content-link img {
  height: 24px;
  width: 24px;
}

.article-share {
  margin-top: 8px;
}

.article-share-icons {
  display: flex;
  gap: 30px;
}

.article-share-icons a {
  align-items: center;
  background: #344b63;
  border-radius: 25px;
  display: inline-flex;
  height: 90px;
  justify-content: center;
  transition: transform 220ms ease;
  width: 90px;
}

.article-share-icons a:hover {
  transform: translateY(-2px);
}

.article-share-icons img {
  filter: brightness(0) invert(1);
  height: 40px;
  width: 40px;
}

.share-feedback-toast {
  background: #0b1e28;
  border-radius: 999px;
  bottom: 28px;
  box-shadow: 0 14px 30px rgba(11, 30, 40, 0.22);
  color: #ffffff;
  font-size: 14px;
  font-weight: 600;
  left: 50%;
  opacity: 0;
  padding: 12px 18px;
  pointer-events: none;
  position: fixed;
  transform: translateX(-50%) translateY(12px);
  transition: opacity 180ms ease, transform 180ms ease;
  z-index: 2000;
}

.share-feedback-toast.is-visible {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

.share-feedback-toast.is-error {
  background: #7a1f35;
}

.article-author {
  align-items: stretch;
  background: #ffffff;
  border: 1.726px solid #e7e7e7;
  border-radius: 20.707px;
  box-shadow: 0 1.726px 5.177px rgba(16, 24, 40, 0.1);
  display: flex;
  flex-direction: column;
  min-height: 264px;
  padding: 24px 30px 30px;
  position: relative;
  text-align: left;
}

.article-author-head {
  align-items: center;
  display: flex;
  gap: 16px;
  margin-bottom: 20px;
  padding-right: 108px;
}

.article-author-meta {
  display: flex;
  flex-direction: column;
}

.article-author figure {
  border-radius: 999px;
  flex: 0 0 96px;
  height: 96px;
  margin: 0;
  overflow: hidden;
  width: 96px;
}

.article-author figure img {
  height: 100%;
  object-fit: cover;
  object-position: center;
  width: 100%;
}

.article-author h3 {
  font-size: 35px;
  font-weight: 400;
  letter-spacing: -0.98px;
  line-height: 1.04;
  margin: 0;
}

.article-author span {
  color: #2f2f2f;
  display: block;
  font-size: 16px;
  font-style: italic;
  font-weight: 400;
  letter-spacing: -0.24px;
  line-height: 1.15;
  margin-top: 1px;
}

.article-author p {
  color: #737373;
  font-size: 24px;
  font-weight: 400;
  letter-spacing: -0.24px;
  line-height: 1.42;
  margin: 0;
  max-width: 685px;
}

.author-linkedin {
  align-items: center;
  background: transparent;
  border-radius: 0;
  display: inline-flex;
  height: 84px;
  justify-content: center;
  position: absolute;
  right: 20px;
  top: 20px;
  width: 84px;
}

.author-linkedin img {
  filter: none;
  height: 84px;
  width: 84px;
}

.detail-newsletter {
  align-items: start;
  background: #fff5de;
  border: 1.726px solid #e7e7e7;
  border-radius: 20.707px;
  box-shadow: 0 1.726px 5.177px rgba(16, 24, 40, 0.1);
  display: grid;
  gap: 24px;
  grid-template-columns: minmax(220px, 325px) minmax(0, 1fr);
  padding: 25px 26px;
}

.detail-newsletter h3 {
  font-size: 31px;
  font-weight: 700;
  line-height: 35px;
  margin: 0;
}

.detail-newsletter form {
  display: flex;
  flex-direction: column;
}

.detail-newsletter form label {
  color: #000000;
  display: block;
  font-family: "SF Pro Text", "Open Sans", sans-serif;
  font-size: 22px;
  font-style: normal;
  font-weight: 500;
  line-height: 31px;
}

.newsletter-input-row {
  align-items: center;
  column-gap: 10px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  margin-top: 8px;
}

.detail-newsletter input {
  background: transparent;
  border: 1.6px solid #d1d1d1;
  border-radius: 10px;
  color: #202020;
  display: block;
  flex: 0 1 auto;
  font-family: "SF Pro Text", "Open Sans", sans-serif;
  font-size: 22px;
  font-style: normal;
  font-weight: 400;
  height: 48px;
  min-width: 0;
  padding: 0 18px;
  width: 100%;
}

.detail-newsletter input::placeholder {
  color: #b0b0b0;
}

.detail-newsletter form p {
  color: #737373;
  font-size: 15px;
  font-weight: 400;
  line-height: 23px;
  margin: 12px 0 0;
  max-width: none;
}

.detail-newsletter button {
  background: #fc3164;
  border: 0;
  border-radius: 10px;
  box-shadow:
    0 4px 4px rgba(0, 0, 0, 0.25),
    inset 0 4px 4px rgba(0, 0, 0, 0.25);
  color: #ffffff;
  cursor: pointer;
  font-size: 28px;
  font-weight: 700;
  line-height: 44px;
  height: 49px;
  margin: 0;
  min-height: 49px;
  min-width: 138px;
  padding: 0 22px;
  transition: transform 220ms ease;
  width: 138px;
}

.detail-newsletter button:hover {
  transform: translateY(-1px);
}

.related-resources {
  padding-top: 68px;
}

.related-mobile-head {
  display: none;
}

.related-desktop-title {
  line-height: 48px;
  margin: 0 auto 48px;
  max-width: 1200px;
  text-align: center;
}

.related-grid {
  display: grid;
  gap: 32px;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.related-grid article {
  transition: transform 260ms ease;
}

.related-grid article:hover {
  transform: translateY(-4px);
}

.related-grid figure {
  border-radius: 12px;
  margin: 0 0 32px;
  overflow: hidden;
}

.related-grid figure img {
  height: 378px;
  object-fit: cover;
  width: 100%;
}

.related-grid h4 {
  color: #000000;
  font-size: 24px;
  font-weight: 600;
  letter-spacing: -0.48px;
  line-height: 32px;
  margin: 0 0 24px;
}

.related-grid span {
  align-items: center;
  background: #e83c66;
  border-radius: 24px;
  color: #ffffff;
  display: inline-flex;
  font-size: 16px;
  font-weight: 400;
  line-height: 24px;
  min-height: 32px;
  padding: 4px 10px;
}

.blog-download-modal[hidden] {
  display: none;
}

body.blog-download-modal-open {
  overflow: hidden;
}

.blog-download-modal {
  inset: 0;
  position: fixed;
  z-index: 10000;
}

.blog-download-modal-backdrop {
  background: rgba(11, 30, 40, 0.62);
  inset: 0;
  position: absolute;
}

.blog-download-dialog {
  background: #ffffff;
  border: 1px solid #e7e7e7;
  border-radius: 8px;
  box-shadow: 0 24px 70px rgba(11, 30, 40, 0.22);
  left: 50%;
  max-height: calc(100vh - 48px);
  overflow-y: auto;
  padding: 32px;
  position: absolute;
  top: 50%;
  transform: translate(-50%, -50%);
  width: min(520px, calc(100% - 32px));
}

.blog-download-close {
  align-items: center;
  appearance: none;
  background: #f6f6f6;
  border: 1px solid #e7e7e7;
  border-radius: 50%;
  color: #0b1e28;
  cursor: pointer;
  display: inline-flex;
  font-size: 28px;
  height: 40px;
  justify-content: center;
  line-height: 1;
  padding: 0 0 3px;
  position: absolute;
  right: 16px;
  top: 16px;
  width: 40px;
}

.blog-download-dialog-head {
  padding-right: 44px;
}

.blog-download-dialog-head span {
  color: #e83c66;
  display: block;
  font-size: 14px;
  font-weight: 700;
  line-height: 20px;
  margin-bottom: 8px;
}

.blog-download-dialog-head h3 {
  color: #000000;
  font-size: 28px;
  font-weight: 700;
  letter-spacing: 0;
  line-height: 36px;
  margin: 0 0 8px;
}

.blog-download-dialog-head p {
  color: #454545;
  font-size: 16px;
  line-height: 24px;
  margin: 0 0 24px;
}

.blog-download-form {
  display: grid;
  gap: 14px;
}

.blog-download-form label {
  color: #0b1e28;
  display: grid;
  font-size: 14px;
  font-weight: 700;
  gap: 6px;
  line-height: 20px;
}

.blog-download-form input[type="text"],
.blog-download-form input[type="email"],
.blog-download-form input[type="tel"] {
  border: 1px solid #d1d1d1;
  border-radius: 8px;
  color: #0b1e28;
  font-size: 16px;
  font-weight: 400;
  line-height: 24px;
  min-height: 48px;
  padding: 11px 14px;
  width: 100%;
}

.blog-download-form input:focus {
  border-color: #e83c66;
  box-shadow: 0 0 0 3px rgba(232, 60, 102, 0.14);
  outline: none;
}

.blog-download-consent {
  align-items: flex-start;
  display: flex !important;
  flex-direction: row;
  font-size: 13px !important;
  font-weight: 400 !important;
  gap: 10px !important;
  line-height: 20px !important;
}

.blog-download-consent input {
  flex: 0 0 auto;
  height: 18px;
  margin-top: 1px;
  width: 18px;
}

.blog-download-submit {
  appearance: none;
  background: #e83c66;
  border: 0;
  border-radius: 8px;
  color: #ffffff;
  cursor: pointer;
  font-size: 18px;
  font-weight: 700;
  line-height: 28px;
  min-height: 52px;
  padding: 12px 18px;
}

.blog-download-feedback {
  color: #166534;
  display: none;
  font-size: 14px;
  line-height: 20px;
  margin: 0;
}

.blog-download-feedback.is-visible {
  display: block;
}

.blog-download-feedback.is-error {
  color: #b42318;
}

.detail-reveal {
  opacity: 0;
  transform: translateY(20px);
  transition:
    opacity 620ms ease,
    transform 620ms ease;
  transition-delay: var(--detail-delay, 0ms);
}

.detail-reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 1360px) {
  .hero-grid {
    gap: 64px;
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  }

  .article-hero-media img {
    height: auto;
    width: 100%;
  }

  .detail-article {
    gap: 72px;
    grid-template-columns: 280px minmax(0, 1fr);
  }

  .two-col-layout {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  }
}

@media (max-width: 1100px) {
  .detail-top-banner {
    display: none;
  }

  .container-block {
    width: min(343px, calc(100% - 32px));
  }

  .article-hero {
    padding: 16px 0 40px;
  }

  .hero-grid {
    gap: 24px;
    grid-template-columns: 1fr;
  }

  .article-hero-text {
    gap: 24px;
    text-align: center;
  }

  .article-hero-text h2 {
    font-size: 28px;
    letter-spacing: -0.56px;
    line-height: 36px;
  }

  .article-hero-text p {
    font-size: 14px;
    line-height: 20px;
  }

  .article-download-btn {
    border-radius: 24px;
    font-size: 18px;
    justify-content: center;
    line-height: 28px;
    min-height: 44px;
    padding: 8px 16px;
    width: 100%;
  }

  .article-hero-media {
    border-radius: 0;
    box-shadow: none;
    margin-left: calc(50% - 50vw);
    margin-right: calc(50% - 50vw);
  }

  .article-hero-media img {
    height: 218px;
    object-fit: cover;
    width: 100%;
  }

  .detail-article {
    display: block;
    width: min(343px, calc(100% - 32px));
  }

  .article-sidebar {
    margin: 0 0 40px;
    max-height: none;
    overflow: visible;
    position: static;
    top: auto;
  }

  .author-card,
  .sidebar-promo {
    display: none;
  }

  .toc-card {
    margin-bottom: 40px;
    padding: 16px;
    position: static;
  }

  .toc-head {
    cursor: pointer;
  }

  .toc-head img {
    display: block;
    transform: rotate(180deg);
  }

  .toc-card.is-collapsed .toc-head img {
    transform: rotate(0deg);
  }

  .toc-body {
    max-height: 420px;
    opacity: 1;
    overflow: hidden;
    transition:
      max-height 350ms ease,
      opacity 240ms ease;
  }

  .toc-card.is-collapsed .toc-body {
    max-height: 0;
    opacity: 0;
  }

  .toc-list a {
    width: 100%;
  }

  .article-content {
    gap: 48px;
  }

  .kampus-detail-page .summary-section {
    display: none;
  }

  .detail-section h3,
  .article-share h3,
  .related-resources h3 {
    font-size: 28px;
    letter-spacing: -0.56px;
    line-height: 36px;
    margin-bottom: 24px;
  }

  .summary-grid {
    gap: 12px;
    grid-template-columns: 1fr;
  }

  .summary-grid article {
    min-height: 120px;
    padding: 16px;
  }

  .summary-grid span,
  .summary-grid strong,
  .summary-grid em {
    font-size: 16px;
    line-height: 24px;
  }

  .meaning-box {
    margin-bottom: 24px;
    padding: 16px;
  }

  .meaning-box p,
  .check-list li,
  .two-col-left p,
  .two-col-left li,
  .examples-box p,
  .comparison-grid p {
    font-size: 16px;
    line-height: 24px;
  }

  .check-list li {
    padding-left: 32px;
  }

  .check-list li::before {
    font-size: 20px;
    top: 2px;
  }

  .two-col-layout {
    gap: 24px;
    grid-template-columns: 1fr;
  }

  .examples-box {
    padding: 16px;
  }

  .examples-box h4,
  .tip-box h4,
  .mistakes-box > h4,
  .practice-card h4 {
    font-size: 16px;
    line-height: 24px;
    margin-bottom: 16px;
  }

  .section-cta {
    border-radius: 24px;
    font-size: 18px;
    line-height: 28px;
    min-height: 44px;
    min-width: 0;
    padding: 8px 16px;
    width: 100%;
  }

  #learn-past-participle .section-cta {
    margin-left: 0;
    margin-right: 0;
  }

  .grammar-table-wrap {
    overflow-x: auto;
  }

  .grammar-table {
    min-width: 343px;
  }

  .grammar-table thead th {
    font-size: 16px;
    letter-spacing: 0;
    line-height: 24px;
    padding: 16px;
  }

  .grammar-table tbody td {
    font-size: 16px;
    line-height: 24px;
    padding: 16px;
  }

  .comparison-grid {
    gap: 24px;
    grid-template-columns: 1fr;
  }

  .comparison-grid article {
    padding: 16px;
  }

  .comparison-grid h4 {
    font-size: 16px;
    letter-spacing: 0;
    line-height: 20px;
  }

  .comparison-grid strong {
    font-size: 20px;
    letter-spacing: 0;
    line-height: 28px;
    margin-bottom: 16px;
  }

  .tip-box {
    padding: 16px;
  }

  .tip-box p {
    font-size: 16px;
    line-height: 24px;
  }

  .tip-box h4 {
    padding-left: 34px;
  }

  .tip-box h4::before {
    font-size: 24px;
    top: 1px;
  }

  .sentence-list article {
    padding: 16px;
  }

  .sentence-list p {
    font-size: 16px;
    line-height: 24px;
  }

  .sentence-list span,
  .mistake-item p {
    font-size: 14px;
    line-height: 20px;
  }

  .mistakes-box {
    padding: 16px;
  }

  .mistakes-box > h4 {
    padding-left: 32px;
  }

  .mistake-wrong,
  .mistake-correct {
    font-size: 16px;
    line-height: 24px;
    min-height: 48px;
    padding: 12px 16px 12px 48px;
  }

  .mistake-wrong::before {
    font-size: 30px;
    top: 10px;
  }

  .mistake-correct::before {
    font-size: 24px;
    top: 12px;
  }

  .practice-grid {
    gap: 12px;
    grid-template-columns: 1fr;
  }

  .practice-card {
    padding: 16px;
  }

  .practice-card h4 {
    font-weight: 600;
    letter-spacing: 0;
  }

  .practice-card li {
    font-size: 16px;
    line-height: 24px;
  }

  .featured-content-card {
    gap: 16px;
    grid-template-columns: 1fr;
    padding: 16px;
  }

  .featured-content-card figure img {
    min-height: 190px;
  }

  .featured-content-body h4 {
    font-size: 24px;
    letter-spacing: -0.48px;
    line-height: 32px;
  }

  .featured-content-body p {
    font-size: 16px;
    line-height: 24px;
    margin: 12px 0;
    max-width: none;
  }

  .featured-content-link {
    font-size: 20px;
    line-height: 28px;
  }

  .featured-content-link img {
    height: 20px;
    width: 20px;
  }

  .article-share,
  .featured-content-block,
  .article-author,
  .detail-newsletter {
    display: none;
  }

  .related-resources {
    padding-top: 40px;
  }

  .related-mobile-head {
    align-items: center;
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-bottom: 24px;
  }

  .related-mobile-badge {
    align-items: center;
    background: #fcc031;
    border-radius: 24px;
    color: #2b2108;
    display: inline-flex;
    font-size: 12px;
    font-weight: 400;
    gap: 8px;
    line-height: 18px;
    min-height: 30px;
    padding: 6px 12px;
  }

  .related-desktop-title {
    display: none;
  }

  .related-mobile-title {
    font-size: 24px;
    font-weight: 600;
    letter-spacing: 0;
    line-height: 32px;
    margin: 0;
    text-align: center;
  }

  .related-grid {
    gap: 24px;
    grid-template-columns: 1fr;
  }

  .related-grid article {
    transition: none;
  }

  .related-grid article:hover {
    transform: none;
  }

  .related-grid figure {
    margin-bottom: 32px;
  }

  .related-grid figure img {
    height: 378px;
    max-width: none;
    width: 378px;
  }

  .related-grid h4 {
    font-size: 20px;
    letter-spacing: 0;
    line-height: 28px;
    margin-bottom: 16px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .detail-reveal,
  .guide-card,
  .summary-grid article,
  .related-grid article,
  .article-share-icons a,
  .section-cta,
  .guide-card-btn,
  .article-download-btn {
    transition: none !important;
  }
}