/* ===== JustUp Blog ===== */
:root {
  --bg: #f3f7f8;
  --surface: #ffffff;
  --text: #1d252c;
  --text-2: #476373;
  --muted: #6d92a3;
  --green: #009665;
  --green-dark: #076045;
  --green-pale: #e8f7ef;
  --border: rgba(157, 184, 195, 0.35);
  --radius: 16px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

body {
  font-family: 'Sora', system-ui, -apple-system, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  font-size: 17px;
}

a { color: var(--green-dark); }

/* Header */
.blog-header {
  position: sticky; top: 0; z-index: 10;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
}
.blog-header-inner {
  max-width: 1080px; margin: 0 auto; padding: 14px 24px;
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
}
.blog-logo { height: 24px; width: auto; display: block; }
.blog-logo .logo-text { fill: var(--text); }
.blog-nav { display: flex; align-items: center; gap: 8px; }
.blog-nav a {
  text-decoration: none; color: var(--text-2); font-size: 14px; font-weight: 500;
  padding: 7px 14px; border-radius: 99px; transition: background .2s, color .2s;
}
.blog-nav a:hover { background: var(--bg); color: var(--text); }
.blog-nav .blog-cta {
  background: var(--green); color: #fff; font-weight: 600;
}
.blog-nav .blog-cta:hover { background: var(--green-dark); color: #fff; }

/* Hero of blog index */
.blog-hero { max-width: 1080px; margin: 0 auto; padding: 64px 24px 32px; }
.blog-hero h1 { font-size: clamp(32px, 5vw, 44px); letter-spacing: -0.02em; line-height: 1.15; }
.blog-hero p { color: var(--text-2); margin-top: 12px; max-width: 640px; }
.blog-kicker {
  display: inline-block; font-size: 12px; font-weight: 700; letter-spacing: .12em;
  text-transform: uppercase; color: var(--green-dark); background: var(--green-pale);
  padding: 5px 12px; border-radius: 99px; margin-bottom: 16px;
}

/* Cards grid */
.blog-grid {
  max-width: 1080px; margin: 0 auto; padding: 24px 24px 80px;
  display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 24px;
}
.blog-card {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 28px; display: flex; flex-direction: column; gap: 12px;
  text-decoration: none; color: inherit;
  transition: transform .2s ease, box-shadow .2s ease;
}
.blog-card:hover { transform: translateY(-3px); box-shadow: 0 12px 32px rgba(29, 37, 44, 0.10); }
.blog-card-tag { font-size: 12px; font-weight: 700; color: var(--green-dark); letter-spacing: .08em; text-transform: uppercase; }
.blog-card h2 { font-size: 20px; line-height: 1.35; letter-spacing: -0.01em; }
.blog-card p { color: var(--text-2); font-size: 14.5px; flex: 1; }
.blog-card-meta { color: var(--muted); font-size: 13px; }

/* Article */
.article { max-width: 760px; margin: 0 auto; padding: 56px 24px 40px; }
.article-meta { color: var(--muted); font-size: 14px; margin: 16px 0 8px; }
.article h1 { font-size: clamp(30px, 4.5vw, 42px); letter-spacing: -0.02em; line-height: 1.18; }
.article-lede { font-size: 19px; color: var(--text-2); margin-top: 18px; }
.article-body { margin-top: 36px; }
.article-body h2 { font-size: 26px; letter-spacing: -0.01em; margin: 44px 0 14px; line-height: 1.3; }
.article-body h3 { font-size: 20px; margin: 32px 0 10px; }
.article-body p { margin: 14px 0; }
.article-body ul, .article-body ol { margin: 14px 0 14px 24px; }
.article-body li { margin: 7px 0; }
.article-body strong { color: var(--text); }
.article-body table {
  width: 100%; border-collapse: collapse; margin: 20px 0; font-size: 15px;
  background: var(--surface); border-radius: 12px; overflow: hidden;
}
.article-body th, .article-body td { padding: 10px 14px; text-align: left; border-bottom: 1px solid var(--border); }
.article-body th { background: var(--green-pale); color: var(--green-dark); font-weight: 700; }
.article-body blockquote {
  border-left: 3px solid var(--green); background: var(--surface);
  padding: 16px 20px; border-radius: 0 12px 12px 0; margin: 20px 0; color: var(--text-2);
}

.article-callout {
  background: var(--green-pale); border: 1px solid rgba(0, 150, 101, 0.25);
  border-radius: 12px; padding: 18px 22px; margin: 24px 0;
}

/* CTA box */
.article-cta {
  max-width: 760px; margin: 24px auto 80px; padding: 36px;
  background: var(--text); color: #f3f7f8; border-radius: 20px; text-align: center;
}
.article-cta h2 { font-size: 24px; letter-spacing: -0.01em; }
.article-cta p { color: #9db8c3; margin: 10px auto 22px; max-width: 520px; }
.article-cta a {
  display: inline-block; background: #05FFAD; color: #0A0E13; font-weight: 700;
  text-decoration: none; padding: 14px 30px; border-radius: 99px; font-size: 15px;
}
.article-cta a:hover { filter: brightness(1.08); }

/* Related */
.article-related { max-width: 760px; margin: 0 auto 64px; padding: 0 24px; }
.article-related h2 { font-size: 20px; margin-bottom: 16px; }
.article-related ul { list-style: none; }
.article-related li { margin: 10px 0; }

/* Footer */
.blog-footer {
  border-top: 1px solid var(--border); padding: 32px 24px; text-align: center;
  color: var(--muted); font-size: 13.5px;
}
.blog-footer a { color: var(--text-2); }

@media (max-width: 640px) {
  .blog-nav a:not(.blog-cta) { display: none; }
  .article { padding-top: 36px; }
}