/* ═══ BURRARD PHARMA — PRODUCT PAGE STYLES V2 ═══
   Includes: Dark mode, mobile fixes, accessibility, dual chat */

*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
:root{
--navy:#1E40AF;--navy-light:#2563EB;--navy-dark:#1E3A8A;
--teal:#0EA5E9;--teal-dark:#0284C7;--teal-light:#38BDF8;--teal-glow:rgba(14,165,233,.12);
--accent:#0EA5E9;--accent-bg:#eff6ff;
--onc:#e11d48;--onc-bg:#fff1f2;--dia:#2563eb;--dia-bg:#eff6ff;--car:#dc2626;--car-bg:#fef2f2;
--res:#059669;--res-bg:#ecfdf5;--imm:#7c3aed;--imm-bg:#f5f3ff;--anti:#ea580c;--anti-bg:#fff7ed;--oph:#0891b2;--oph-bg:#ecfeff;
--white:#fff;--off-white:#F7F9FB;--gray-50:#f8fafc;--gray-100:#f1f5f9;--gray-200:#e2e8f0;--gray-300:#cbd5e1;--gray-400:#94a3b8;--gray-500:#64748b;--gray-600:#475569;--gray-700:#334155;
--font-heading:'Sora',sans-serif;--font-body:'DM Sans',sans-serif;
--shadow:0 4px 12px rgba(0,0,0,.06);--shadow-lg:0 12px 40px rgba(0,0,0,.1);
--radius:10px;--radius-lg:16px;--radius-xl:24px;
--bg-primary:var(--white);--bg-secondary:var(--off-white);
--text-primary:var(--gray-700);--text-secondary:var(--gray-500);
--border-color:var(--gray-200);--card-bg:var(--white);
}
html{scroll-behavior:smooth;font-size:16px}
body{font-family:var(--font-body);color:var(--text-primary);line-height:1.8;background:var(--bg-primary);overflow-x:hidden}
h1,h2,h3,h4{font-family:var(--font-heading);color:var(--navy);line-height:1.3;font-weight:600}
a{color:#3B82F6;text-decoration:none;transition:all .2s}a:hover{color:#2563EB}
img{max-width:100%;loading:lazy}

/* SKIP NAV */
.skip-nav{position:absolute;top:-100px;left:16px;background:var(--teal);color:var(--white);padding:12px 24px;border-radius:var(--radius);font-family:var(--font-heading);font-weight:600;z-index:10001;transition:top .3s}
.skip-nav:focus{top:8px}

/* NAV */
.nav{position:fixed;top:0;left:0;right:0;z-index:1000;background:rgba(255,255,255,.95);backdrop-filter:blur(20px);border-bottom:1px solid var(--border-color)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:72px;max-width:1200px;margin:0 auto;padding:0 24px}
.nav-logo{display:flex;align-items:center}
.nav-logo img{height:48px;width:auto;object-fit:contain}
.nav-links{display:flex;align-items:center;gap:4px}
.nav-links a{font-family:var(--font-heading);font-size:.85rem;font-weight:500;color:var(--navy);padding:10px 16px;border-radius:8px;transition:all .2s;min-height:44px;display:flex;align-items:center}
.nav-links a:hover{background:var(--teal-glow);color:var(--teal-dark)}
.nav-links a.active{color:var(--teal);background:var(--teal-glow)}
.nav-cta{background:var(--teal)!important;color:var(--white)!important;padding:10px 22px!important;font-weight:600!important}
.hamburger{display:none;flex-direction:column;gap:5px;cursor:pointer;padding:8px;min-height:44px;min-width:44px;justify-content:center}
.hamburger span{width:24px;height:2px;background:var(--navy);transition:.3s}

/* BREADCRUMB */
.breadcrumb{padding:88px 24px 0;max-width:1200px;margin:0 auto}
.breadcrumb a,.breadcrumb span{font-size:.82rem;color:var(--gray-400)}
.breadcrumb a:hover{color:var(--teal)}
.breadcrumb .sep{margin:0 8px}

/* PRODUCT HERO */
.product-hero{padding:24px 0 40px}
.product-hero-inner{max-width:1200px;margin:0 auto;padding:0 24px;display:grid;grid-template-columns:1fr 360px;gap:40px;align-items:start}
.product-cat-badge{display:inline-flex;align-items:center;gap:6px;font-family:var(--font-heading);font-size:.72rem;font-weight:600;text-transform:uppercase;letter-spacing:.08em;padding:5px 14px;border-radius:100px;margin-bottom:16px}
.cat-onc{background:var(--onc-bg);color:var(--onc)}.cat-dia{background:var(--dia-bg);color:var(--dia)}
.cat-car{background:var(--car-bg);color:var(--car)}.cat-res{background:var(--res-bg);color:var(--res)}
.cat-imm{background:var(--imm-bg);color:var(--imm)}.cat-anti{background:var(--anti-bg);color:var(--anti)}.cat-oph{background:var(--oph-bg);color:var(--oph)}
.product-hero h1{font-size:clamp(1.8rem,3.5vw,2.8rem);font-weight:700;letter-spacing:-.03em;line-height:1.15;margin-bottom:12px}
.product-hero h1 span{color:var(--teal)}
.product-subtitle{font-size:1.15rem;color:var(--text-secondary);margin-bottom:24px;line-height:1.7;max-width:640px}

/* QUICK FACTS */
.quick-facts{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:20px}
.qf{background:var(--gray-50);border:1px solid var(--border-color);border-radius:var(--radius);padding:14px 16px}
.qf-label{font-family:var(--font-heading);font-size:.68rem;text-transform:uppercase;letter-spacing:.08em;color:var(--gray-400);font-weight:600}
.qf-value{font-size:.92rem;color:var(--navy);font-weight:500;margin-top:2px}

/* SIDEBAR */
.sidebar-card{background:var(--card-bg);border:2px solid var(--border-color);border-radius:var(--radius-xl);padding:24px;position:sticky;top:96px}
.sidebar-card h3{font-size:1.1rem;margin-bottom:4px}
.sidebar-card .sub{font-size:.85rem;color:var(--text-secondary);margin-bottom:20px}
.sidebar-features{list-style:none;margin-bottom:24px}
.sidebar-features li{display:flex;align-items:flex-start;gap:10px;padding:10px 0;font-size:.88rem;color:var(--gray-600);border-bottom:1px solid var(--gray-100)}
.sidebar-features li:last-child{border:none}
.check{color:var(--teal);font-weight:700;flex-shrink:0;margin-top:2px}

/* BUTTONS */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:14px 28px;border-radius:var(--radius);font-family:var(--font-heading);font-size:.9rem;font-weight:600;cursor:pointer;transition:all .3s;border:none;width:100%;text-align:center;min-height:44px}
.btn-primary{background:var(--teal);color:var(--white)}.btn-primary:hover{background:var(--teal-dark);color:var(--white);transform:translateY(-2px);box-shadow:0 8px 30px rgba(14,165,233,.25)}
.btn-secondary{background:var(--navy);color:var(--white);margin-top:10px}.btn-secondary:hover{background:var(--navy-light);color:var(--white)}
.sidebar-contact{text-align:center;margin-top:20px;font-size:.82rem;color:var(--gray-400)}
.sidebar-contact a{color:var(--teal)}

/* ARTICLE */
.article-body{max-width:1200px;margin:0 auto;padding:0 24px}
.article-content{max-width:760px}
.article-content h2{font-size:1.4rem;margin:32px 0 12px;letter-spacing:-.02em;padding-top:20px;border-top:1px solid var(--border-color)}
.article-content h2:first-of-type{border:none;padding-top:0;margin-top:0}
.article-content h3{font-size:1.1rem;margin:20px 0 8px}
.article-content p{margin-bottom:18px;font-size:.95rem}
.article-content ul,.article-content ol{margin:12px 0 24px 20px}
.article-content li{margin-bottom:8px;font-size:.95rem}

/* INFO BOX */
.info-box{border-radius:var(--radius-lg);padding:24px 28px;margin:28px 0}
.info-box-teal{background:var(--teal-glow);border-left:4px solid var(--teal)}
.info-box-blue{background:var(--accent-bg);border-left:4px solid var(--accent)}
.info-box h4{font-size:.95rem;margin-bottom:6px}
.info-box p,.info-box li{font-size:.9rem;margin-bottom:4px}

/* INCLUDED GRID */
.included-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin:24px 0}
.included-item{background:var(--gray-50);border:1px solid var(--border-color);border-radius:var(--radius);padding:20px}
.included-item h4{font-size:.88rem;color:var(--navy);margin-bottom:4px;display:flex;align-items:center;gap:8px}
.included-item p{font-size:.82rem;color:var(--text-secondary);line-height:1.6}
.included-icon{font-size:1.1rem}

/* ═══ CHAT & FAQ SECTION ═══ */
.chat-faq-section{background:linear-gradient(180deg,var(--bg-secondary),var(--bg-primary));padding:32px 0;margin-top:24px;border-top:1px solid var(--border-color)}
.chat-faq-inner{max-width:800px;margin:0 auto;padding:0 24px}
.chat-faq-header{text-align:center;margin-bottom:20px}
.chat-faq-header .overline{font-family:var(--font-heading);font-size:.68rem;text-transform:uppercase;letter-spacing:.15em;color:var(--teal);font-weight:600;margin-bottom:8px}
.chat-faq-header h2{font-size:clamp(1.2rem,2vw,1.5rem);letter-spacing:-.02em;margin-bottom:6px}
.chat-faq-header p{color:var(--text-secondary);font-size:.85rem}

/* SUGGESTED QUESTIONS */
.suggested-questions{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin-bottom:24px}
.sq-btn{background:var(--card-bg);border:1.5px solid var(--border-color);border-radius:var(--radius);padding:10px 14px;cursor:pointer;transition:all .3s;text-align:left;display:flex;align-items:center;gap:8px;min-height:40px}
.sq-btn:hover{border-color:var(--teal);background:var(--teal-glow)}
.sq-icon{width:24px;height:24px;background:var(--teal-glow);border-radius:6px;display:flex;align-items:center;justify-content:center;font-size:.7rem;flex-shrink:0}
.sq-text{font-family:var(--font-heading);font-size:.78rem;font-weight:500;color:var(--navy);line-height:1.3}

/* ═══ COMPACT CHAT WIDGET ═══ */
.product-chat{background:var(--card-bg);border:1.5px solid var(--border-color);border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow);max-width:600px;margin:0 auto}
.pc-header{background:linear-gradient(135deg,var(--navy),var(--navy-dark));padding:14px 18px;display:flex;align-items:center;gap:10px}
.pc-avatar{width:32px;height:32px;background:var(--teal);border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:.9rem}
.pc-header-text h4{font-family:var(--font-heading);font-size:.82rem;color:var(--white);font-weight:600}
.pc-header-text p{font-size:.68rem;color:rgba(255,255,255,.5)}
.pc-status{margin-left:auto;display:flex;align-items:center;gap:6px;font-size:.75rem;color:rgba(255,255,255,.6)}
.pc-status::before{content:'';width:7px;height:7px;background:#22c55e;border-radius:50%;animation:blink 2s infinite}
@keyframes blink{0%,100%{opacity:1}50%{opacity:.4}}

/* AI Selector Bar */
.ai-selector{display:flex;gap:4px;padding:8px 16px;border-bottom:1px solid var(--border-color);background:var(--gray-50)}
.ai-btn{flex:1;padding:8px 12px;border:1.5px solid var(--border-color);border-radius:var(--radius);background:var(--card-bg);font-family:var(--font-heading);font-size:.75rem;font-weight:600;cursor:pointer;transition:all .2s;text-align:center;color:var(--gray-500);min-height:44px;display:flex;align-items:center;justify-content:center;gap:6px}
.ai-btn.active{border-color:var(--teal);background:var(--teal-glow);color:var(--teal-dark)}
.ai-btn:hover:not(.active){border-color:var(--gray-300)}

.pc-messages{padding:14px 16px;min-height:120px;max-height:250px;overflow-y:auto;background:var(--gray-50)}
.pc-msg{margin-bottom:10px;display:flex;flex-direction:column}
.pc-msg.bot .pc-bubble{background:var(--card-bg);color:var(--text-primary);border:1px solid var(--border-color);border-radius:2px 12px 12px 12px;max-width:88%;align-self:flex-start}
.pc-msg.user .pc-bubble{background:var(--teal);color:var(--white);border-radius:12px 2px 12px 12px;max-width:88%;align-self:flex-end}
.pc-bubble{padding:10px 14px;font-size:.82rem;line-height:1.6}
.pc-bubble strong{font-weight:600}
.pc-input-area{display:flex;gap:8px;padding:12px 14px;border-top:1px solid var(--border-color);background:var(--card-bg)}
.pc-input{flex:1;padding:10px 14px;border:1.5px solid var(--border-color);border-radius:100px;font-family:var(--font-body);font-size:.82rem;outline:none;transition:border .2s;background:var(--bg-primary);color:var(--text-primary);min-height:40px}
.pc-input:focus{border-color:var(--teal)}
.pc-send{width:40px;height:40px;background:var(--teal);border:none;border-radius:50%;cursor:pointer;color:var(--white);font-size:1rem;display:flex;align-items:center;justify-content:center;transition:all .2s;flex-shrink:0;min-height:40px;min-width:40px}
.pc-send:hover{background:var(--teal-dark)}

/* RELATED */
.related-section{padding:64px 0 80px}
.related-section h2{text-align:center;font-size:1.5rem;margin-bottom:32px}
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;max-width:1200px;margin:0 auto;padding:0 24px}
.related-card{background:var(--card-bg);border:1px solid var(--border-color);border-radius:var(--radius-lg);padding:24px;transition:all .3s;text-decoration:none;color:inherit;min-height:44px}
.related-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:transparent}
.related-badge{font-family:var(--font-heading);font-size:.65rem;text-transform:uppercase;letter-spacing:.06em;font-weight:600;margin-bottom:8px}
.related-card h3{font-size:.98rem;margin-bottom:4px;color:var(--navy)}
.related-card p{font-size:.82rem;color:var(--text-secondary);line-height:1.6}

/* CTA STRIP */
.cta-strip{background:var(--navy);padding:48px 0;text-align:center}
.cta-strip h3{color:#fff;text-shadow:0 2px 8px rgba(0,0,0,.3);font-size:1.3rem;margin-bottom:6px}
.cta-strip p{color:rgba(255,255,255,.85);font-size:.9rem;margin-bottom:20px}
.cta-strip .btn-primary{width:auto;display:inline-flex;padding:14px 32px}

/* FOOTER */
.footer{background:var(--navy-dark);color:rgba(255,255,255,.5);padding:32px 0;text-align:center;font-size:.8rem}
.footer a{color:var(--teal)}
.footer-social{display:flex;gap:12px;justify-content:center;margin-bottom:12px}
.footer-social a{display:inline-flex;align-items:center;gap:4px;color:rgba(255,255,255,.5);font-size:.78rem}
.footer-social a:hover{color:var(--teal)}

/* ═══ RESPONSIVE ═══ */
@media(max-width:1024px){.product-hero-inner{grid-template-columns:1fr;gap:32px}.sidebar-card{position:static}}
@media(max-width:768px){
  .nav-links{display:none;position:absolute;top:72px;left:0;right:0;background:var(--white);flex-direction:column;padding:16px 32px;border-bottom:1px solid var(--border-color);box-shadow:0 4px 12px rgba(0,0,0,.08)}
  .nav-links.open{display:flex}
  .hamburger{display:flex}
  .quick-facts{grid-template-columns:1fr}
  .included-grid{grid-template-columns:1fr}
  .suggested-questions{grid-template-columns:1fr}
  .related-grid{grid-template-columns:1fr}
  .product-chat{border-radius:0}
  .container{padding:0 32px}
}

/* FOCUS */
:focus-visible{outline:2px solid var(--teal);outline-offset:2px;border-radius:4px}
@media(prefers-reduced-motion:reduce){*{animation-duration:.01ms!important;transition-duration:.01ms!important}}


/* NEWSLETTER + SOCIAL STRIP MOBILE */
@media(max-width:768px){
  section[style*="grid-template-columns:1fr 1fr"]{grid-template-columns:1fr!important}
}

/* CHAT SUGGESTIONS / PREPARED QUESTIONS */
.pc-suggestions{display:flex;flex-wrap:wrap;gap:4px;padding:8px 10px;border-top:1px solid var(--border-color);background:var(--off-white)}
.pc-suggestions button{background:var(--card-bg);border:1px solid var(--border-color);border-radius:100px;padding:5px 10px;font-family:var(--font-body);font-size:.68rem;color:var(--gray-500);cursor:pointer;transition:all .2s;line-height:1.3;min-height:28px;text-align:left}
.pc-suggestions button:hover{border-color:var(--teal);color:var(--teal-dark);background:rgba(14,165,233,.08)}

/* ═══ DYNAMIC ANIMATIONS ═══ */
@keyframes fadeUp{from{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}
.product-hero-inner,.article-content,.sidebar-card,.chat-faq-section{animation:fadeUp .6s ease-out both}
.article-content{animation-delay:.1s}
.sidebar-card{animation-delay:.2s}
.article-content h2{transition:color .3s}
.article-content h2:hover{color:var(--teal)}
.qf{transition:all .3s}.qf:hover{transform:translateY(-2px);box-shadow:0 4px 12px rgba(0,0,0,.08)}
.sidebar-features li{transition:all .2s}.sidebar-features li:hover{padding-left:6px;color:var(--navy)}

/* ═══ DARK MODE (Grok-recommended contrast & readability) ═══ */