:root {
  --nude-25: #f7f6f7;
  --mint-50: #f2fbf7;
  --mint-120: #dff4ec;
  --mint-700: #2e6f5c;
  --text: #25332e;
  --muted: rgba(37, 51, 46, .78);
  --outline: #bfdcd1;
  --radius: 18px;
  --shadow: 0 12px 26px rgba(37, 51, 46, .08);
}

* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: "Manrope", sans-serif;
  background: var(--nude-25);
  color: var(--text);
  line-height: 1.6;
}

.article-wrap {
  width: min(860px, calc(100% - 2rem));
  margin: 2rem auto 3rem;
}

.article-card {
  background: #ffffff;
  border: 1px solid var(--outline);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 1.5rem 1.55rem;
}

.chip {
  display: inline-flex;
  padding: .28rem .68rem;
  border-radius: 999px;
  font-size: .76rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: .04em;
  color: var(--mint-700);
  background: var(--mint-120);
}

h1 {
  margin: .7rem 0 .55rem;
  font-size: clamp(2rem, 3.8vw, 2.8rem);
  line-height: 1.1;
  letter-spacing: -.02em;
  color: #163b31;
}

.excerpt {
  margin: 0 0 1rem;
  color: var(--muted);
  font-size: 1.06rem;
}

h2 {
  margin: 1.35rem 0 .55rem;
  padding-left: .65rem;
  border-left: 4px solid var(--mint-700);
  font-size: 1.4rem;
  line-height: 1.25;
  color: var(--mint-700);
}

p { margin: .55rem 0; }

.article-card p,
.article-card li {
  font-size: 1.06rem;
  line-height: 1.78;
}

.article-card ul {
  margin: .5rem 0 1rem;
  padding-left: 1.25rem;
}

.article-card li {
  margin: .18rem 0;
}

.milestone-figure {
  margin: .85rem 0 1rem;
  border-radius: 14px;
  overflow: hidden;
  border: 1px solid var(--outline);
  background: #ffffff;
  box-shadow: var(--shadow);
}

.milestone-figure img {
  display: block;
  width: 100%;
  height: auto;
  max-height: 420px;
  object-fit: cover;
}

.milestone-figure figcaption {
  padding: .62rem .8rem;
  background: var(--mint-50);
  color: var(--mint-700);
  font-size: .93rem;
  font-weight: 700;
}

.placeholder {
  border: 1px dashed var(--outline);
  background: var(--mint-50);
  border-radius: 12px;
  padding: .8rem;
  color: var(--muted);
  font-size: .95rem;
}

.download-box {
  margin-top: 1.2rem;
  padding: .95rem;
  border-radius: 12px;
  border: 1px solid var(--outline);
  background: linear-gradient(180deg, #ffffff, var(--mint-50));
}

.download-box p {
  margin: 0 0 .55rem;
  font-weight: 700;
}

.download-box .play-store-badge-link {
  display: inline-flex;
  line-height: 0;
  border-radius: 10px;
  overflow: hidden;
}

.download-box .play-store-badge {
  display: block;
  width: 190px;
  height: auto;
}

.related-articles {
  margin-top: 1.25rem;
}

.related-articles h2 {
  margin-top: 0;
}

.related-articles ul {
  margin: .4rem 0 0;
}

.related-articles a {
  color: var(--mint-700);
  font-weight: 700;
  text-decoration: none;
}

@media (max-width: 860px) {
  .download-box .play-store-badge { width: 175px; }
  .article-card { padding: 1.2rem 1.05rem; }
  .article-card p,
  .article-card li { font-size: 1rem; line-height: 1.7; }
  .milestone-figure img { max-height: 300px; }
}