/* Rules shared by every page in this Health Guides family (moved out of each page's own <style> block;
   linked exactly where that block starts, so the cascade order is unchanged).
   Pages: anxiety, asthma, back-pain-and-posture, bone-health, cardiovascular-health, cold-and-heat-therapy, energy-and-daily-performance, exercise-and-vo2-max, hrv-guide, intermittent-fasting, joint-health, kidney-health, liver-health, longevity, menopause, nutrition, sleep-and-longevity, stress-and-nervous-system, vitamin-and-mineral-deficiencies */
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--z-body);color:var(--text-primary);background:var(--off-white);-webkit-font-smoothing:antialiased;line-height:1.6}
nav{position:sticky;top:0;z-index:100;display:flex;align-items:center;justify-content:space-between;padding:1.1rem 3rem;background:var(--white);border-bottom:0.5px solid var(--border)}
.logo{display:flex;align-items:center;text-decoration:none}
.nav-links{display:flex;gap:2rem;font-size:13px}
.nav-links a{text-decoration:none;color:var(--text-secondary);font-weight:500;transition:color 0.2s}
.nav-links a:hover{color:var(--navy)}
.btn-navy{font-family:var(--z-body);font-size:13px;padding:8px 20px;border:none;border-radius:100px;background:var(--navy);color:#fff;cursor:pointer;transition:all 0.2s;text-decoration:none;display:inline-block}
.btn-mint{font-family:var(--z-body);font-size:14px;padding:12px 28px;border-radius:100px;background:var(--mint);color:var(--navy);font-weight:600;border:none;cursor:pointer;transition:all 0.2s;text-decoration:none;display:inline-flex;align-items:center;gap:8px}
.eyebrow{font-size:13px;text-transform:uppercase;letter-spacing:0.12em;color:var(--navy);font-weight:500;margin-bottom:0.75rem;display:flex;align-items:center;gap:8px}
.eyebrow::before{content:'';width:18px;height:1.5px;background:currentColor;display:block;flex-shrink:0}
.eyebrow-light{color:var(--mint)}
.sw-alt{background:var(--warm-gray);border-bottom:0.5px solid var(--border)}
.sw-white{background:var(--white);border-bottom:0.5px solid var(--border)}
.hero-inner{max-width:1100px;margin:0 auto;position:relative;z-index:1;display:grid;grid-template-columns:1fr 1fr;gap:4rem;align-items:center}
.stat-bar{background:var(--white);border-bottom:0.5px solid var(--border)}
.stat-bar-inner{display:flex;max-width:1200px;margin:0 auto}
.stat-item{flex:1;padding:1.75rem 2rem;border-right:0.5px solid var(--border);text-align:center}
.stat-item:last-child{border-right:none}
.stat-num{font-family:var(--z-head);font-size:32px;font-weight:600;color:var(--navy);line-height:1;margin-bottom:4px}
.stat-label{font-size:14px;color:var(--text-muted);font-weight:400;line-height:1.4}
.toc{display:flex;flex-wrap:wrap;gap:8px}
.article-grid{display:grid;grid-template-columns:1fr 1fr;gap:1.5px;background:var(--border)}
.article-card:hover{background:var(--off-white)}
.article-body{font-size:13.5px;line-height:1.8;color:var(--text-secondary);font-weight:400;margin-bottom:1.25rem}
.habit-list{list-style:none;display:flex;flex-direction:column;gap:6px;margin-bottom:1.25rem}
.habit-list li{font-size:13px;color:var(--text-secondary);padding-left:1.25rem;position:relative;line-height:1.6;font-weight:400}
footer{padding:2rem 3rem;background:var(--white);border-top:0.5px solid var(--border)}
.footer-inner{max-width:1100px;margin:0 auto;display:flex;align-items:center;justify-content:flex-start;flex-wrap:wrap;gap:2.5rem}
.footer-inner>div:last-child{margin-left:auto}
.footer-links{display:flex;gap:1.5rem;flex-wrap:wrap}
.footer-links a{font-size:14px;color:var(--text-muted);text-decoration:none;transition:color 0.2s}
.footer-links a:hover{color:var(--navy)}