/* ═══════════════════════════════════════════
   LungZen™ — Complete Site CSS
   ═══════════════════════════════════════════ */
:root{--primary:#0e7c6b;--primary-dark:#065f52;--primary-light:#e0f5f0;--accent:#1a9e8a;--text:#0a0a0a;--text-light:#0a0a0a;--text-muted:#333;--bg:#fff;--bg-alt:#f4faf8;--bg-dark:#0b1e1a;--border:#e0e0e0;--white:#fff;--red:#d32f2f;--green:#2e7d32;--shadow:0 4px 24px rgba(14,124,107,.10);--shadow-lg:0 12px 48px rgba(14,124,107,.15);--radius:12px;--radius-lg:20px;--max-w:1100px;--font:'DM Sans',sans-serif;--font-head:'Playfair Display',serif}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--font);font-size:1.375rem;line-height:1.8;color:var(--text);background:var(--bg);-webkit-font-smoothing:antialiased}
img{max-width:100%;height:auto;display:block}
a{text-decoration:none;color:inherit}
.container{max-width:var(--max-w);margin:0 auto;padding:0 24px}

/* NAV */
.site-header{position:sticky;top:0;z-index:100;background:rgba(255,255,255,.95);backdrop-filter:blur(12px);border-bottom:1px solid var(--border);transition:transform .3s}
.site-header.hidden{transform:translateY(-100%)}
@media(min-width:901px){.site-header.hidden{transform:none!important}}
.nav-inner{max-width:var(--max-w);margin:0 auto;padding:14px 24px;display:flex;align-items:center;justify-content:space-between}
.nav-logo{font-family:var(--font-head);font-size:1.4rem;color:var(--primary);font-weight:700}
.nav-logo span{color:var(--text)}
.nav-links{display:flex;gap:28px;align-items:center;list-style:none}
.nav-links a{font-size:.95rem;font-weight:500;color:var(--text);transition:color .2s}
.nav-links a:hover{color:var(--primary)}
.nav-cta{background:var(--primary);color:var(--white)!important;padding:10px 24px;border-radius:50px;font-weight:600;font-size:.9rem;transition:background .2s,transform .15s}
.nav-cta:hover{background:var(--primary-dark);transform:translateY(-1px)}
.mobile-toggle{display:none;background:none;border:none;cursor:pointer}

/* HERO */
.hero{padding:80px 0 60px;background:linear-gradient(135deg,var(--bg-alt) 0%,var(--white) 60%,var(--primary-light) 100%);overflow:hidden}
.hero-grid{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
.hero-badge{display:inline-flex;align-items:center;gap:8px;background:var(--primary-light);color:var(--primary-dark);padding:8px 18px;border-radius:50px;font-size:.85rem;font-weight:600;margin-bottom:20px}
.hero h1{font-family:var(--font-head);font-size:3rem;line-height:1.2;color:var(--text);margin-bottom:20px;font-weight:700}
.hero h1 span{color:var(--primary)}
.hero-sub{font-size:1.15rem;color:var(--text);line-height:1.7;margin-bottom:28px}
.hero-points{list-style:none;margin-bottom:32px}
.hero-points li{padding:6px 0;font-size:1rem;color:var(--text);display:flex;align-items:flex-start;gap:10px}
.hero-points li::before{content:'✓';color:var(--primary);font-weight:700;min-width:22px;height:22px;line-height:22px;text-align:center;background:var(--primary-light);border-radius:50%;font-size:.75rem;flex-shrink:0;margin-top:3px}
.hero-img{text-align:center}
.hero-img img{max-height:520px;margin:0 auto;border-radius:var(--radius-lg)}
.btn-primary{display:inline-flex;align-items:center;gap:10px;background:var(--primary);color:var(--white);padding:16px 40px;border-radius:50px;font-size:1.05rem;font-weight:700;transition:all .25s;border:none;cursor:pointer;box-shadow:0 4px 16px rgba(14,124,107,.25)}
.btn-primary:hover{background:var(--primary-dark);transform:translateY(-2px);box-shadow:0 6px 24px rgba(14,124,107,.35)}

/* STATS */
.stats-bar{background:var(--bg-dark);padding:40px 0}
.stats-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;text-align:center}
.stat-item h3{font-family:var(--font-head);font-size:2.4rem;color:var(--accent);font-weight:700}
.stat-item p{color:rgba(255,255,255,.9);font-size:.95rem;margin-top:4px}

/* SECTIONS */
.section{padding:80px 0}
.section-alt{background:var(--bg-alt)}
.section-title{font-family:var(--font-head);font-size:2.4rem;text-align:center;margin-bottom:16px;color:var(--text);line-height:1.3}
.section-sub{text-align:center;color:var(--text);font-size:1.1rem;max-width:680px;margin:0 auto 48px;line-height:1.7}

/* WHAT IS / HOW IT WORKS */
.what-is-grid{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.what-is-text h2{font-family:var(--font-head);font-size:2rem;margin-bottom:20px;line-height:1.3}
.what-is-text h3{color:var(--primary);font-size:1.05rem;margin-bottom:6px;margin-top:20px}
.what-is-text p{margin-bottom:16px;color:var(--text);font-size:1.1rem}
.what-is-img img{border-radius:var(--radius-lg);box-shadow:var(--shadow-lg)}

/* BENEFITS */
.benefits-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:32px}
.benefit-card{background:var(--white);border:1px solid var(--border);border-radius:var(--radius-lg);padding:36px;transition:transform .2s,box-shadow .2s}
.benefit-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg)}
.benefit-icon{width:56px;height:56px;border-radius:14px;background:var(--primary-light);color:var(--primary);display:flex;align-items:center;justify-content:center;font-size:1.5rem;margin-bottom:18px}
.benefit-card h3{font-size:1.15rem;margin-bottom:10px;font-weight:700}
.benefit-card p{color:var(--text);font-size:1.05rem;line-height:1.7}

/* INGREDIENTS */
.ingredients-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.ingredient-card{background:var(--white);border:1px solid var(--border);border-radius:var(--radius-lg);padding:32px;text-align:center;transition:transform .2s,box-shadow .2s}
.ingredient-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg)}
.ingredient-card .emoji{font-size:2.8rem;margin-bottom:16px}
.ingredient-card h3{font-size:1.1rem;margin-bottom:6px;color:var(--primary-dark)}
.ingredient-card .dose{font-size:.85rem;color:var(--accent);font-weight:600;margin-bottom:12px}
.ingredient-card p{font-size:1.02rem;color:var(--text);line-height:1.65}

/* REVIEWS */
.reviews-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.review-card{background:var(--white);border:1px solid var(--border);border-radius:var(--radius-lg);padding:28px;transition:transform .2s}
.review-card:hover{transform:translateY(-3px);box-shadow:var(--shadow)}
.review-top{display:flex;align-items:center;gap:14px;margin-bottom:16px}
.review-avatar{width:56px;height:56px;border-radius:50%;object-fit:cover;border:2px solid var(--primary-light)}
.review-name{font-weight:700;font-size:.95rem}
.review-loc{font-size:.82rem;color:var(--text-muted)}
.review-stars{color:#f5a623;font-size:.9rem;margin-bottom:4px}
.verified{font-size:.75rem;color:var(--green);font-weight:600}
.review-card blockquote{font-size:1.02rem;color:var(--text);line-height:1.65;font-style:italic;border:0;padding:0;margin:0}

/* PRICING */
.pricing-section{background:linear-gradient(180deg,var(--bg-alt) 0%,var(--white) 100%)}
.pricing-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;align-items:start}
.price-card{background:var(--white);border:2px solid var(--border);border-radius:var(--radius-lg);padding:32px 24px;text-align:center;position:relative;transition:transform .2s,box-shadow .2s}
.price-card.featured{border-color:var(--primary);box-shadow:var(--shadow-lg);transform:scale(1.04)}
.price-badge{position:absolute;top:-14px;left:50%;transform:translateX(-50%);background:var(--primary);color:var(--white);padding:6px 22px;border-radius:50px;font-size:.78rem;font-weight:700;text-transform:uppercase;white-space:nowrap}
.price-card .supply{font-size:.85rem;color:var(--text-muted);margin-bottom:8px;text-transform:uppercase;font-weight:600;letter-spacing:.5px}
.price-card .bottles{font-family:var(--font-head);font-size:1.5rem;margin-bottom:16px}
.price-card .bottle-img{max-height:200px;margin:0 auto 20px}
.price-card .price{font-family:var(--font-head);font-size:3rem;color:var(--primary-dark);font-weight:700;line-height:1}
.price-card .price small{font-size:1rem;color:var(--text-muted);font-weight:400}
.price-card .original{text-decoration:line-through;color:var(--text-muted);font-size:.95rem;margin-bottom:4px}
.price-card .savings{color:var(--red);font-weight:700;font-size:.9rem;margin-bottom:16px}
.btn-order{display:block;width:100%;background:var(--primary);color:var(--white);padding:14px;border-radius:50px;border:none;font-size:1rem;font-weight:700;cursor:pointer;transition:background .2s;text-align:center}
.btn-order:hover{background:var(--primary-dark)}
.price-card .guarantee-note{font-size:.78rem;color:var(--text-muted);margin-top:12px}
.price-card .shipping{font-size:.82rem;color:var(--green);font-weight:600;margin-top:8px}

/* GUARANTEE */
.guarantee-section{padding:80px 0}
.guarantee-box{max-width:800px;margin:0 auto;display:grid;grid-template-columns:auto 1fr;gap:36px;align-items:center;background:var(--bg-alt);border:2px solid var(--primary-light);border-radius:var(--radius-lg);padding:48px}
.guarantee-box img{max-width:160px}
.guarantee-box h2{font-family:var(--font-head);font-size:1.6rem;margin-bottom:12px}
.guarantee-box p{color:var(--text);font-size:1.05rem;line-height:1.7}

/* FAQ */
.faq-list{max-width:780px;margin:0 auto}
.faq-item{border-bottom:1px solid var(--border)}
.faq-question{width:100%;background:none;border:none;padding:22px 0;font-size:1.05rem;font-weight:600;color:var(--text);text-align:left;cursor:pointer;display:flex;justify-content:space-between;align-items:center;font-family:var(--font)}
.faq-question::after{content:'+';font-size:1.4rem;color:var(--primary);transition:transform .3s;flex-shrink:0;margin-left:16px}
.faq-item.open .faq-question::after{content:'−'}
.faq-answer{max-height:0;overflow:hidden;transition:max-height .3s ease}
.faq-answer-inner{padding:0 0 22px;color:var(--text);font-size:1.05rem;line-height:1.7}

/* PAGE CONTENT (legal, blog, about, contact, ingredients) */
.page-hero{padding:60px 0 40px;background:linear-gradient(135deg,var(--bg-alt),var(--primary-light));text-align:center}
.page-hero h1{font-family:var(--font-head);font-size:2.2rem;color:var(--text);margin-bottom:10px}
.page-hero p{color:var(--text-light);font-size:1.05rem}
.page-content{max-width:820px;margin:0 auto;padding:48px 24px 80px}
.page-content h2{font-family:var(--font-head);font-size:1.5rem;color:var(--primary-dark);margin:36px 0 14px}
.page-content h3{font-size:1.15rem;color:var(--text);margin:24px 0 10px;font-weight:700}
.page-content p{margin-bottom:16px;color:var(--text);font-size:1.1rem;line-height:1.8}
.page-content ul,.page-content ol{margin:0 0 16px 24px;color:var(--text)}
.page-content li{margin-bottom:8px;line-height:1.7}
.page-content a{color:var(--primary);text-decoration:underline}
.page-content a.btn-primary,.blog-cta a.btn-primary{color:var(--white)!important;text-decoration:none!important}

/* BLOG CARDS */
.blog-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:28px}
.blog-card{background:var(--white);border:1px solid var(--border);border-radius:var(--radius-lg);padding:32px;transition:transform .2s,box-shadow .2s}
.blog-card:hover{transform:translateY(-3px);box-shadow:var(--shadow)}
.blog-card .tag{font-size:.78rem;color:var(--primary);font-weight:600;text-transform:uppercase;letter-spacing:.5px;margin-bottom:10px}
.blog-card h3{font-size:1.15rem;margin-bottom:10px;line-height:1.4}
.blog-card h3 a{color:var(--text);transition:color .2s}
.blog-card h3 a:hover{color:var(--primary)}
.blog-card p{color:var(--text);font-size:1rem;line-height:1.65;margin-bottom:14px}
.blog-card .meta{font-size:.82rem;color:var(--text-muted)}

/* BLOG POST */
.blog-post-meta{display:flex;gap:16px;align-items:center;margin-bottom:32px;padding-bottom:20px;border-bottom:1px solid var(--border)}
.blog-post-meta .author-name{font-weight:600;color:var(--text)}
.blog-post-meta .date{color:var(--text-muted);font-size:.9rem}
.editorial-note{background:var(--primary-light);border-left:4px solid var(--primary);padding:16px 20px;border-radius:0 var(--radius) var(--radius) 0;margin-bottom:32px;font-size:.9rem;color:var(--primary-dark)}
.author-box{background:var(--bg-alt);border-radius:var(--radius-lg);padding:28px;margin-top:48px;display:flex;gap:20px;align-items:flex-start}
.author-box .info h4{font-size:1rem;margin-bottom:4px}
.author-box .info p{font-size:.9rem;color:var(--text-light);line-height:1.6;margin-bottom:0}
.blog-cta{margin-top:40px;padding:32px;background:var(--primary-light);border-radius:var(--radius-lg);text-align:center}
.blog-cta p{margin-bottom:16px;color:var(--text);font-size:1rem}

/* CONTACT FORM */
.contact-form{max-width:600px;margin:0 auto}
.form-group{margin-bottom:20px}
.form-group label{display:block;font-weight:600;margin-bottom:6px;font-size:.95rem}
.form-group input,.form-group textarea,.form-group select{width:100%;padding:14px 16px;border:1px solid var(--border);border-radius:var(--radius);font-size:1rem;font-family:var(--font);transition:border-color .2s}
.form-group input:focus,.form-group textarea:focus{outline:none;border-color:var(--primary)}
.form-group textarea{min-height:140px;resize:vertical}

/* FOOTER */
.site-footer{background:var(--bg-dark);color:rgba(255,255,255,.6);padding:48px 0 28px;font-size:.85rem;line-height:1.8}
.footer-links{display:flex;flex-wrap:wrap;gap:20px;justify-content:center;margin-bottom:28px;list-style:none}
.footer-links a{color:rgba(255,255,255,.7);transition:color .2s}
.footer-links a:hover{color:var(--white)}
.footer-disclaimer{max-width:860px;margin:0 auto;text-align:center;font-size:.82rem;color:rgba(255,255,255,.55);line-height:1.8}
.footer-disclaimer p{margin-bottom:12px}
.footer-brand{text-align:center;margin-top:24px;padding-top:20px;border-top:1px solid rgba(255,255,255,.08)}
.footer-brand p{color:rgba(255,255,255,.3);font-size:.75rem}

/* FLOATING CTA */
.floating-cta{display:none;position:fixed;bottom:20px;right:20px;z-index:90;background:var(--primary);color:var(--white);width:56px;height:56px;border-radius:50%;font-size:1.4rem;border:none;cursor:pointer;box-shadow:0 4px 20px rgba(14,124,107,.4);transition:transform .2s;align-items:center;justify-content:center}
.floating-cta:hover{transform:scale(1.08)}

/* EXIT POPUP */
.exit-overlay{display:none;position:fixed;inset:0;z-index:999;background:rgba(0,0,0,.55);align-items:center;justify-content:center}
.exit-overlay.show{display:flex}
.exit-popup{background:var(--white);border-radius:var(--radius-lg);max-width:440px;width:90%;padding:40px;text-align:center;position:relative}
.exit-popup .close-popup{position:absolute;top:14px;right:18px;background:none;border:none;font-size:1.4rem;cursor:pointer;color:var(--text-muted)}
.exit-popup h3{font-family:var(--font-head);font-size:1.5rem;margin-bottom:10px}
.exit-popup p{color:var(--text-light);font-size:.95rem;margin-bottom:22px}

/* RESPONSIVE */
@media(max-width:900px){
body{font-size:1.125rem}
.hero-grid,.what-is-grid{grid-template-columns:1fr}
.hero-img{order:-1}
.hero h1{font-size:2.1rem}
.hero-img img{max-height:380px}
.benefits-grid,.ingredients-grid,.reviews-grid,.blog-grid{grid-template-columns:1fr}
.pricing-grid{grid-template-columns:1fr;max-width:400px;margin:0 auto}
.price-card.featured{transform:none}
.guarantee-box{grid-template-columns:1fr;text-align:center;padding:32px}
.guarantee-box img{margin:0 auto}
.stats-grid{grid-template-columns:1fr;gap:16px}
.nav-links{display:none}
.mobile-toggle{display:block}
.floating-cta{display:flex}
.section{padding:56px 0}
.section-title{font-size:1.7rem}
.page-hero h1{font-size:1.7rem}
}
@media(max-width:600px){
.hero{padding:48px 0 40px}
.hero h1{font-size:1.75rem}
.container{padding:0 16px}
.pricing-grid{max-width:100%}
}

/* MOBILE STICKY CTA */
@media(max-width:900px){
.mobile-sticky-cta{display:block!important}
}
@media(min-width:901px){
.mobile-sticky-cta{display:none!important}
}

/* WHY TRUST US responsive */
@media(max-width:900px){
[style*="grid-template-columns:repeat(4,1fr)"]{ grid-template-columns:repeat(2,1fr)!important; }
}
@media(max-width:500px){
[style*="grid-template-columns:repeat(4,1fr)"]{ grid-template-columns:1fr!important; }
}

/* IS LUNGZEN RIGHT responsive */
@media(max-width:700px){
[style*="grid-template-columns:1fr 1fr"]{ grid-template-columns:1fr!important; }
}