:root {
  --ink: #173754;
  --muted: #607086;
  --page: #f6f7f3;
  --paper: #ffffff;
  --line: rgba(23, 55, 84, 0.12);
  --rtsok: #0d9488;
  --rtsok-dark: #087266;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: Arial, sans-serif;
  color: var(--ink);
  background: var(--page);
}
.blog-topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  border-bottom: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(14px);
}
.blog-topbar__inner {
  display: flex;
  max-width: 1120px;
  min-height: 68px;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  margin: 0 auto;
  padding: 0 18px;
}
.blog-topbar__brand {
  color: var(--ink);
  font-weight: 900;
  text-decoration: none;
}
.blog-topbar__links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.blog-topbar__links a {
  color: var(--muted);
  font-size: 14px;
  font-weight: 800;
  text-decoration: none;
}
.page {
  max-width: 1120px;
  margin: 0 auto;
  padding: 28px 18px 64px;
}
.back {
  display: inline-flex;
  margin-bottom: 18px;
  color: var(--muted);
  font-weight: 700;
  text-decoration: none;
}
.hero {
  padding: 42px;
  border-radius: 28px;
  color: #fff;
  background: linear-gradient(135deg, #10283f, #087266);
}
.hero span {
  display: inline-flex;
  padding: 8px 12px;
  border-radius: 999px;
  background: rgba(255,255,255,.12);
  font-size: 13px;
  font-weight: 800;
}
h1 {
  max-width: 900px;
  margin: 18px 0 14px;
  font-size: clamp(34px, 6vw, 56px);
  line-height: 1.08;
}
h2 { margin: 0 0 10px; font-size: 24px; }
p, li { color: var(--muted); line-height: 1.72; }
.hero p { max-width: 780px; color: rgba(255,255,255,.82); font-size: 18px; }
.grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  margin-top: 18px;
}
.card, .article {
  border: 1px solid var(--line);
  border-radius: 20px;
  background: var(--paper);
}
.card {
  display: flex;
  min-height: 100%;
  flex-direction: column;
  overflow: hidden;
  text-decoration: none;
}
.card img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}
.card-body { padding: 20px; }
.date {
  color: var(--rtsok-dark);
  font-size: 13px;
  font-weight: 800;
}
.card h2 { margin-top: 8px; color: var(--ink); }
.article {
  margin-top: 18px;
  padding: 30px;
}
.article img {
  width: 100%;
  max-height: 420px;
  margin: 4px 0 24px;
  border-radius: 18px;
  object-fit: cover;
}
.lead { font-size: 18px; }
.cta {
  display: inline-flex;
  min-height: 48px;
  align-items: center;
  margin-top: 16px;
  padding: 0 18px;
  border-radius: 14px;
  background: var(--rtsok);
  color: #fff;
  font-weight: 800;
  text-decoration: none;
}
.blog-footer {
  border-top: 1px solid var(--line);
  background: #fff;
}
.blog-footer__inner {
  max-width: 1120px;
  margin: 0 auto;
  padding: 30px 18px;
}
.blog-footer h2 {
  margin-bottom: 8px;
}
.blog-footer__links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 18px;
}
.blog-footer__links a {
  display: inline-flex;
  min-height: 42px;
  align-items: center;
  padding: 0 14px;
  border-radius: 12px;
  background: rgba(13, 148, 136, 0.1);
  color: #087266;
  font-weight: 800;
  text-decoration: none;
}
@media (max-width: 900px) {
  .grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 640px) {
  .blog-topbar__inner {
    display: block;
    padding: 14px 18px;
  }
  .blog-topbar__links {
    margin-top: 10px;
  }
  .hero, .article { padding: 24px; }
  .grid { grid-template-columns: 1fr; }
}