/* ===========================
   GLYCOPEZIL BLOG - blog.css
   =========================== */
:root {
  --primary: #1E40AF; --accent: #06B6D4; --accent2: #10B981;
  --dark: #0F172A; --mid: #334155; --muted: #64748B;
  --light: #F1F5F9; --white: #FFFFFF;
  --gradient: linear-gradient(135deg, #1E40AF 0%, #06B6D4 100%);
  --font-head: 'Montserrat', sans-serif; --font-body: 'Open Sans', sans-serif;
  --shadow: 0 4px 20px rgba(30,64,175,0.1);
  --radius: 14px;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 16px; scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body { font-family: var(--font-body); color: var(--dark); background: var(--white); line-height: 1.75; }
img { max-width: 100%; height: auto; display: block; }
a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }

/* NAV */
.blog-nav {
  background: var(--dark); padding: 14px 20px;
  display: flex; align-items: center; justify-content: space-between;
  gap: 12px; flex-wrap: wrap; position: sticky; top: 0; z-index: 100;
}
.blog-nav-logo { font-family: var(--font-head); font-weight: 800; font-size: 1.1rem; color: var(--white); }
.blog-nav-back { color: rgba(255,255,255,0.6); font-size: 0.85rem; }
.blog-nav-back:hover { color: var(--accent); text-decoration: none; }
.blog-nav-cta {
  background: var(--gradient); color: var(--white); font-family: var(--font-head);
  font-weight: 700; font-size: 0.82rem; padding: 9px 20px; border-radius: 50px;
}

/* HERO */
.post-hero {
  background: var(--gradient); color: var(--white);
  padding: 50px 20px 40px; text-align: center;
}
.post-cat-badge {
  display: inline-block; background: rgba(255,255,255,0.15); color: var(--white);
  font-family: var(--font-head); font-weight: 700; font-size: 0.7rem;
  padding: 5px 14px; border-radius: 50px; text-transform: uppercase;
  letter-spacing: 1px; margin-bottom: 14px;
}
.post-hero h1 {
  font-family: var(--font-head); font-size: clamp(1.5rem, 4vw, 2.4rem);
  line-height: 1.3; max-width: 800px; margin: 0 auto 14px;
}
.post-hero-meta { font-size: 0.85rem; opacity: 0.7; }

/* LAYOUT */
.post-layout {
  max-width: 1100px; margin: 0 auto; padding: 48px 20px;
  display: grid; grid-template-columns: 1fr 320px; gap: 48px; align-items: start;
}
@media (max-width: 900px) { .post-layout { grid-template-columns: 1fr; } }

/* ARTICLE */
.post-article { min-width: 0; }
.post-article h2 {
  font-family: var(--font-head); font-size: clamp(1.2rem, 3vw, 1.6rem);
  color: var(--primary); margin: 32px 0 12px; line-height: 1.3;
}
.post-article h3 {
  font-family: var(--font-head); font-size: clamp(1rem, 2.5vw, 1.25rem);
  color: var(--dark); margin: 24px 0 10px;
}
.post-article p { margin-bottom: 16px; font-size: 1rem; line-height: 1.8; color: var(--mid); }
.post-article ul, .post-article ol { padding-left: 24px; margin-bottom: 16px; }
.post-article li { margin-bottom: 8px; font-size: 1rem; color: var(--mid); line-height: 1.75; }
.post-article strong { color: var(--dark); }

.post-cta-box {
  background: var(--gradient); border-radius: var(--radius);
  padding: 28px 24px; text-align: center; margin: 36px 0; color: var(--white);
}
.post-cta-box p { color: rgba(255,255,255,0.85); margin-bottom: 16px; }
.post-cta-box h3 { color: var(--white); margin-bottom: 8px; font-family: var(--font-head); }
.btn-cta {
  display: inline-block; background: var(--white); color: var(--primary);
  font-family: var(--font-head); font-weight: 800; font-size: 1rem;
  padding: 14px 32px; border-radius: 50px; transition: transform 0.2s, box-shadow 0.2s;
}
.btn-cta:hover { transform: scale(1.04); box-shadow: 0 8px 24px rgba(0,0,0,0.2); text-decoration: none; }

/* SIDEBAR */
.post-sidebar { display: flex; flex-direction: column; gap: 24px; }
.sidebar-widget {
  background: var(--light); border-radius: var(--radius);
  padding: 22px; border: 1px solid rgba(30,64,175,0.1);
}
.sidebar-widget h4 {
  font-family: var(--font-head); font-size: 0.9rem; font-weight: 800;
  color: var(--primary); margin-bottom: 14px; text-transform: uppercase;
  letter-spacing: 0.5px;
}
.sidebar-widget ul { list-style: none; padding: 0; display: flex; flex-direction: column; gap: 8px; }
.sidebar-widget ul li a {
  font-size: 0.875rem; color: var(--mid); padding: 8px 12px;
  display: block; border-radius: 8px; transition: background 0.2s, color 0.2s;
}
.sidebar-widget ul li a:hover { background: var(--white); color: var(--primary); text-decoration: none; }
.sidebar-cta-widget {
  background: var(--gradient); border-radius: var(--radius); padding: 24px;
  text-align: center; color: var(--white);
}
.sidebar-cta-widget p { font-size: 0.875rem; margin-bottom: 14px; opacity: 0.9; }
.sidebar-cta-widget strong { font-family: var(--font-head); font-size: 1.1rem; display: block; margin-bottom: 8px; }
.sidebar-btn {
  display: block; background: var(--white); color: var(--primary);
  font-family: var(--font-head); font-weight: 800; font-size: 0.9rem;
  padding: 12px 20px; border-radius: 50px; transition: transform 0.2s;
}
.sidebar-btn:hover { transform: scale(1.04); text-decoration: none; }

/* RELATED POSTS */
.related-posts { background: var(--light); padding: 48px 20px; }
.related-posts h2 {
  font-family: var(--font-head); font-size: 1.4rem; color: var(--dark);
  text-align: center; margin-bottom: 28px;
}
.related-grid { display: grid; grid-template-columns: repeat(4,1fr); gap: 16px; max-width: 1100px; margin: 0 auto; }
.related-card {
  background: var(--white); border-radius: 12px; padding: 18px;
  box-shadow: var(--shadow); font-size: 0.85rem; transition: transform 0.2s;
}
.related-card:hover { transform: translateY(-4px); }
.related-card a { font-family: var(--font-head); font-weight: 700; color: var(--primary); font-size: 0.9rem; }
@media (max-width: 768px) { .related-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 480px) { .related-grid { grid-template-columns: 1fr; } }

/* FOOTER */
.blog-footer {
  background: var(--dark); color: rgba(255,255,255,0.5);
  padding: 28px 20px; text-align: center; font-size: 0.78rem;
}
.blog-footer a { color: rgba(255,255,255,0.5); margin: 0 6px; }
.blog-footer a:hover { color: var(--accent); }