/* ============================
   SONUS ZEN BLOG - SHARED CSS
   ============================ */
:root {
  --primary: #1a5276; --primary-dark: #0e3460; --accent: #27ae60;
  --gold-light: #f1c40f; --white: #fff; --off-white: #f8faff;
  --light-blue: #eaf4fd; --text-dark: #1a202c; --text-med: #4a5568;
  --text-light: #718096; --border: #e2e8f0;
  --gradient: linear-gradient(135deg, #1a5276 0%, #2980b9 50%, #27ae60 100%);
  --shadow: 0 4px 24px rgba(26,82,118,0.10); --radius: 16px; --radius-sm: 8px;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 16px; scroll-behavior: smooth; }
body { font-family: 'Open Sans', sans-serif; color: var(--text-dark); background: var(--off-white); line-height: 1.7; }
img { max-width: 100%; height: auto; display: block; }
a { text-decoration: none; color: inherit; }
h1, h2, h3, h4 { font-family: 'Montserrat', sans-serif; font-weight: 800; line-height: 1.25; }

/* NAV */
.navbar { background: #0e2d4a; padding: 0 20px; position: sticky; top: 0; z-index: 100; box-shadow: 0 2px 12px rgba(0,0,0,0.25); }
.nav-inner { max-width: 1100px; margin: 0 auto; display: flex; align-items: center; justify-content: space-between; height: 64px; gap: 16px; }
.nav-brand { color: white; font-family: 'Montserrat', sans-serif; font-weight: 700; font-size: 1.2rem; display: flex; align-items: center; gap: 6px; white-space: nowrap; }
.nav-brand strong { color: var(--gold-light); }
.nav-links-blog { display: flex; gap: 20px; }
.nav-links-blog a { color: rgba(255,255,255,0.75); font-family: 'Montserrat', sans-serif; font-weight: 600; font-size: 0.9rem; transition: 0.3s; padding: 4px 0; }
.nav-links-blog a:hover { color: white; }
.nav-cta { background: var(--accent); color: white; font-family: 'Montserrat', sans-serif; font-weight: 700; padding: 10px 22px; border-radius: 50px; font-size: 0.88rem; transition: 0.3s; min-height: 44px; display: flex; align-items: center; white-space: nowrap; flex-shrink: 0; }
.nav-cta:hover { background: #1e8449; }

/* MAIN */
.blog-main { padding: 60px 0 80px; }
.blog-container { max-width: 820px; margin: 0 auto; padding: 0 20px; }

/* ARTICLE */
.blog-article { background: var(--white); border-radius: var(--radius); box-shadow: var(--shadow); overflow: hidden; }

.article-header { padding: 40px 40px 32px; border-bottom: 1px solid var(--border); }
.article-tag { display: inline-block; background: var(--light-blue); color: var(--primary); font-family: 'Montserrat', sans-serif; font-weight: 700; font-size: 0.75rem; letter-spacing: 0.12em; padding: 5px 14px; border-radius: 50px; margin-bottom: 14px; }
.article-header h1 { font-size: clamp(22px, 4vw, 34px); color: var(--primary-dark); margin-bottom: 14px; }
.article-meta { display: flex; flex-wrap: wrap; gap: 14px; font-size: 0.84rem; color: var(--text-light); margin-bottom: 18px; }
.article-intro { font-size: 1.05rem; color: var(--text-med); line-height: 1.75; border-left: 4px solid var(--primary); padding-left: 16px; }

.article-body { padding: 36px 40px 40px; }
.article-body h2 { font-size: clamp(18px, 3vw, 24px); color: var(--primary-dark); margin: 36px 0 14px; padding-bottom: 8px; border-bottom: 2px solid var(--light-blue); }
.article-body h3 { font-size: clamp(16px, 2.5vw, 19px); color: var(--primary); margin: 24px 0 10px; }
.article-body p { font-size: 1rem; color: var(--text-med); line-height: 1.8; margin-bottom: 16px; }
.article-body strong { color: var(--text-dark); }

blockquote { background: var(--light-blue); border-left: 4px solid var(--primary); border-radius: 0 var(--radius-sm) var(--radius-sm) 0; padding: 18px 20px; margin: 24px 0; font-style: italic; color: var(--text-dark); font-size: 1rem; line-height: 1.7; }

.article-list { padding-left: 24px; margin: 16px 0 20px; }
.article-list li { font-size: 0.97rem; color: var(--text-med); margin-bottom: 8px; list-style: disc; line-height: 1.7; }

.highlight-box { background: var(--light-blue); border: 1px solid var(--border); border-radius: var(--radius-sm); padding: 20px 22px; margin: 24px 0; font-size: 0.95rem; line-height: 1.7; color: var(--text-dark); }
.highlight-box a { color: var(--accent); font-weight: 700; }
.highlight-box a:hover { text-decoration: underline; }

.cta-box { background: var(--gradient); border-radius: var(--radius); padding: 36px 30px; text-align: center; margin: 40px 0; }
.cta-box h3 { color: white; font-size: 1.3rem; margin-bottom: 10px; }
.cta-box p { color: rgba(255,255,255,0.85); margin-bottom: 20px; font-size: 0.97rem; }
.cta-btn { display: inline-block; background: var(--gold-light); color: #000; font-family: 'Montserrat', sans-serif; font-weight: 900; font-size: 1.05rem; padding: 16px 32px; border-radius: 50px; transition: 0.3s; min-height: 52px; }
.cta-btn:hover { transform: scale(1.05); }

.related-links { display: flex; flex-direction: column; gap: 10px; background: var(--off-white); border-radius: var(--radius-sm); padding: 22px 24px; margin-top: 12px; }
.related-links a { color: var(--primary); font-weight: 600; font-size: 0.95rem; transition: 0.3s; padding: 4px 0; min-height: 36px; display: flex; align-items: center; }
.related-links a:hover { color: var(--accent); }

/* FOOTER */
.blog-footer { background: #06192e; padding: 36px 20px; text-align: center; }
.blog-footer-inner { max-width: 820px; margin: 0 auto; }
.footer-links { color: rgba(255,255,255,0.5); font-size: 0.88rem; margin-bottom: 12px; display: flex; flex-wrap: wrap; justify-content: center; gap: 6px; }
.footer-links a { color: rgba(255,255,255,0.5); transition: 0.3s; padding: 4px 8px; min-height: 36px; display: inline-flex; align-items: center; }
.footer-links a:hover { color: var(--gold-light); }
.blog-footer p { color: rgba(255,255,255,0.3); font-size: 0.82rem; }

/* RESPONSIVE */
@media (max-width: 768px) {
  .article-header, .article-body { padding: 24px 20px; }
  .nav-links-blog { display: none; }
}
@media (max-width: 480px) {
  .article-header h1 { font-size: 20px; }
  .nav-cta { padding: 9px 14px; font-size: 0.82rem; }
}