:root {
  --surface: #f7f8f8;
  --surface-card: #ffffff;
  --ink: #121617;
  --ink-soft: #4c5458;
  --primary: #0f4fdb;
  --primary-strong: #0839a8;
  --accent: #1a7d4c;
  --radius-lg: 26px;
  --radius-md: 16px;
  --shadow-soft: 0 22px 45px -24px rgba(10, 24, 36, 0.32);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  color: var(--ink);
  font-family: "Source Sans 3", "Segoe UI", sans-serif;
  background:
    radial-gradient(800px 360px at 8% -6%, rgba(15, 79, 219, 0.16), transparent 62%),
    radial-gradient(680px 320px at 96% 0%, rgba(26, 125, 76, 0.14), transparent 60%),
    var(--surface);
}

.blog-layout {
  width: min(1140px, calc(100% - 2rem));
  margin: 34px auto 56px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 320px;
  gap: 18px;
}

.article-card,
.side-card {
  background: var(--surface-card);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-soft);
}

.article-card {
  padding: 36px;
}

.article-kicker {
  margin: 0;
  display: inline-flex;
  align-items: center;
  padding: 7px 12px;
  border-radius: 999px;
  background: rgba(26, 125, 76, 0.12);
  color: var(--accent);
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

h1 {
  margin: 12px 0 0;
  font-family: "Manrope", "Source Sans 3", sans-serif;
  font-size: clamp(2rem, 4.3vw, 3.3rem);
  line-height: 1.08;
  letter-spacing: -0.02em;
}

.article-meta {
  margin: 12px 0 0;
  color: var(--ink-soft);
  font-size: 0.95rem;
  font-weight: 600;
}

.lead {
  margin: 18px 0 0;
  color: var(--ink-soft);
  font-size: clamp(1.04rem, 1.6vw, 1.2rem);
  max-width: 72ch;
}

.toc {
  margin-top: 24px;
  border-radius: var(--radius-md);
  border: 1px solid rgba(15, 79, 219, 0.14);
  background: linear-gradient(165deg, #f5f8ff 0%, #f9fbff 100%);
  padding: 16px;
  display: grid;
  gap: 8px;
}

.toc p {
  margin: 0 0 4px;
  font-weight: 700;
}

.toc a {
  color: var(--primary);
  font-weight: 600;
  text-decoration: none;
}

.toc a:hover {
  color: var(--primary-strong);
  text-decoration: underline;
}

.article-card section {
  margin-top: 28px;
}

h2,
h3 {
  font-family: "Manrope", "Source Sans 3", sans-serif;
  letter-spacing: -0.02em;
}

h2 {
  margin: 0 0 8px;
  font-size: clamp(1.45rem, 2.5vw, 2rem);
}

h3 {
  margin: 14px 0 6px;
  font-size: 1.2rem;
}

p,
li {
  color: #2b3337;
  font-size: 1.06rem;
  line-height: 1.7;
}

ul,
ol {
  margin: 10px 0 0;
  padding-left: 1.4rem;
}

a {
  color: var(--primary);
}

a:hover {
  color: var(--primary-strong);
}

.side-card {
  align-self: start;
  position: sticky;
  top: 96px;
  padding: 24px 20px;
}

.side-card h2 {
  margin-top: 0;
  font-size: 1.34rem;
}

.side-card ul {
  margin-top: 10px;
  padding-left: 1rem;
}

.cta-link {
  margin-top: 12px;
  display: inline-flex;
  width: 100%;
  justify-content: center;
  padding: 11px 14px;
  border-radius: 999px;
  text-decoration: none;
  font-weight: 700;
  color: #ffffff;
  background: linear-gradient(130deg, var(--primary) 0%, #2a69f6 100%);
}

.cta-link:hover {
  color: #ffffff;
  background: linear-gradient(130deg, var(--primary-strong) 0%, #1f58d9 100%);
}

.cta-link.secondary {
  color: var(--ink);
  background: #eef1f0;
}

.cta-link.secondary:hover {
  color: var(--ink);
  background: #e4e8e7;
}

.blog-hub {
  width: min(1140px, calc(100% - 2rem));
  margin: 34px auto 56px;
  display: grid;
  gap: 20px;
}

.blog-hero {
  border-radius: calc(var(--radius-lg) + 8px);
  background: linear-gradient(152deg, #ffffff 0%, #eff4ff 62%, #e9f1ff 100%);
  box-shadow: var(--shadow-soft);
  padding: 34px;
}

.blog-hero h1 {
  margin-top: 8px;
  max-width: 22ch;
}

.blog-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.blog-card {
  background: var(--surface-card);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-soft);
  padding: 20px;
  border: 1px solid rgba(15, 79, 219, 0.08);
}

.blog-card h2 {
  font-size: 1.36rem;
}

.blog-card p {
  color: var(--ink-soft);
}

.blog-card .meta {
  margin: 0;
  color: var(--accent);
  font-weight: 700;
  font-size: 0.9rem;
}

.blog-card .cta {
  margin-top: 12px;
  display: inline-flex;
  text-decoration: none;
  font-weight: 700;
}

.footer {
  max-width: 1140px;
  margin: 0 auto 40px;
  width: calc(100% - 2rem);
  color: var(--ink-soft);
  font-size: 0.92rem;
}

.footer p {
  margin: 0.35rem 0;
}

@media (max-width: 1100px) {
  .blog-layout {
    grid-template-columns: 1fr;
  }

  .side-card {
    position: static;
  }

  .blog-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 720px) {
  .blog-layout,
  .blog-hub {
    width: min(1140px, calc(100% - 1rem));
    margin-top: 20px;
  }

  .article-card,
  .blog-hero,
  .blog-card {
    padding: 22px 18px;
    border-radius: 22px;
  }

  p,
  li {
    font-size: 1rem;
  }
}