:root{--navy-950:#0a1120;--navy-900:#121d33;--navy-800:#1e293b;--navy-700:#334155;--navy-600:#475569;--navy-500:#64748b;--gold-200:#e5c158;--gold-300:#d4af37;--gold-400:#b8943a;--gold-500:#a68423;--gold-600:#8c6d1c;--white:#fff;--gray-50:#f8fafc;--gray-100:#f1f5f9;--gray-200:#e2e8f0;--gray-300:#cbd5e1;--gray-400:#94a3b8;--gray-500:#64748b;--gray-600:#475569;--gray-700:#334155;--gray-muted:#8892a4;--gray-light:#b0b8c9;--gray-dark:#4b5563;--gray-mid:#6b7280;--navy-dark:#0d1117;--navy-darker:#050d1a;--navy-deep:#0a1628;--success:#10b981;--bg-primary:var(--white);--bg-secondary:var(--gray-50);--bg-tertiary:var(--gray-100);--bg-card:var(--white);--bg-glass:#ffffffe6;--text-primary:#0a1120;--text-secondary:#475569;--text-muted:#526176;--accent:#765812;--accent-hover:#62470d;--accent-light:#d4af371a;--accent-border:#d4af3733;--accent-glow:#d4af374d;--text-inverse:var(--white);--border-muted:#0a112014;--font-heading:"Segoe UI", Arial, sans-serif;--font-body:"Segoe UI", Arial, sans-serif;--section-padding:clamp(4rem, 10vw, 8rem);--container-max:1300px;--container-padding:clamp(1.5rem, 5vw, 3rem);--radius-sm:8px;--radius-md:14px;--radius-lg:24px;--radius-xl:40px;--border-subtle:1px solid var(--border-muted);--border-accent:1px solid #d4af374d;--shadow-sm:0 4px 12px #0a11200d;--shadow-md:0 12px 40px #0a112014;--shadow-lg:0 30px 70px #0a11201f;--shadow-gold:0 10px 40px var(--accent-light);--shadow-accent:0 10px 30px var(--accent-glow);--transition-fast:.2s cubic-bezier(.4, 0, .2, 1);--transition-smooth:.4s cubic-bezier(.4, 0, .2, 1);--transition-bounce:.6s cubic-bezier(.34, 1.56, .64, 1)}*,:before,:after{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;overflow-x:hidden}body{font-family:var(--font-body);background-color:var(--bg-primary);color:var(--text-primary);min-height:100vh;line-height:1.6;overflow-x:hidden}img{max-width:100%;height:auto;display:block}a{color:inherit;text-decoration:none}ul,ol{list-style:none}button{cursor:pointer;background:0 0;border:none;font-family:inherit}.container{max-width:var(--container-max);padding:0 var(--container-padding);margin:0 auto}.section{padding:var(--section-padding) 0;width:100%;position:relative}.section-alt{background:var(--bg-secondary);border-top:var(--border-subtle);border-bottom:var(--border-subtle)}.section-tertiary{background:var(--bg-tertiary)}.section-label{font-family:var(--font-heading);letter-spacing:2px;text-transform:uppercase;color:var(--accent);align-items:center;gap:.75rem;margin-bottom:1rem;font-size:.8rem;font-weight:700;display:flex}.section-label:before{content:"";background:var(--accent);width:24px;height:2px;display:inline-block}.section-title{font-family:var(--font-heading);color:var(--text-primary);margin-bottom:1.5rem;font-size:clamp(2rem,5vw,3rem);font-weight:800;line-height:1.2}.section-subtitle{color:var(--text-secondary);max-width:700px;font-size:1.1rem;line-height:1.7}.section-header.center{text-align:center}.section-header.center .section-label{justify-content:center}.section-header.center .section-label:before{display:none}.section-header.center .section-subtitle{margin:0 auto}.btn{font-family:var(--font-heading);border-radius:var(--radius-sm);transition:all var(--transition-smooth);letter-spacing:.5px;text-transform:uppercase;justify-content:center;align-items:center;gap:.75rem;padding:1rem 2rem;font-size:.9rem;font-weight:700;display:inline-flex}.btn-primary{background:linear-gradient(135deg, var(--gold-400), var(--gold-600));color:var(--navy-950)}.btn-primary:hover{transform:translateY(-3px);box-shadow:0 10px 30px #d4af374d}.btn-secondary{color:var(--text-primary);background:#0a11200f;border:1px solid #0a112014}.btn-secondary:hover{background:#0a11201f;transform:translateY(-3px)}.btn-outline-gold{border:1px solid var(--accent);color:var(--accent)}.btn-outline-gold:hover{background:var(--accent);color:var(--navy-950);transform:translateY(-3px)}.glass{background:var(--bg-glass);-webkit-backdrop-filter:blur(12px);border:var(--border-subtle)}.glass-accent{background:var(--accent-light);backdrop-filter:blur(10px);border:var(--border-accent)}h1{letter-spacing:-.02em;font-size:clamp(2.5rem,7vw,4rem);font-weight:900}h2{font-size:clamp(2rem,5vw,3rem);font-weight:800}h3{font-size:clamp(1.5rem,3vw,2rem);font-weight:700}h4{font-size:1.25rem;font-weight:700}.text-gradient{background:linear-gradient(135deg, var(--text-primary) 0%, var(--gold-300) 100%);-webkit-text-fill-color:transparent;-webkit-background-clip:text}.section-divider{width:100%;height:1px;max-width:var(--container-max);background:linear-gradient(90deg,#0000,#d4af3726,#0000);margin:0 auto}.grid-2{grid-template-columns:repeat(2,1fr);gap:2.5rem;display:grid}.grid-3{grid-template-columns:repeat(3,1fr);gap:2.5rem;display:grid}.grid-4{grid-template-columns:repeat(4,1fr);gap:2rem;display:grid}.grid-5{grid-template-columns:repeat(5,1fr);gap:1.5rem;display:grid}@media (width<=1024px){.grid-4,.grid-3{grid-template-columns:repeat(2,1fr)}}@media (width<=768px){.grid-2,.grid-3,.grid-4{grid-template-columns:1fr}.grid-5{grid-template-columns:repeat(2,1fr)}}@keyframes fadeInUp{0%{opacity:0;transform:translateY(30px)}to{opacity:1;transform:translateY(0)}}@keyframes shimmer{0%{background-position:-200% 0}to{background-position:200% 0}}.animate-fade-up{opacity:0;animation:.8s cubic-bezier(.4,0,.2,1) forwards fadeInUp}.animate-shimmer{background:linear-gradient(90deg,#0000,#ffffff08,#0000) 0 0/200% 100%;animation:3s infinite shimmer}.delay-100{animation-delay:.1s}.delay-200{animation-delay:.2s}.delay-300{animation-delay:.3s}.delay-400{animation-delay:.4s}.card-hover{transition:all var(--transition-smooth)}.card-hover:hover{box-shadow:var(--shadow-gold);border-color:#d4af374d;transform:translateY(-10px)}.card{background:var(--bg-tertiary);border:var(--border-subtle);border-radius:var(--radius-lg);transition:all var(--transition-smooth);box-shadow:var(--shadow-sm);padding:2.5rem}.card-alt{background:var(--bg-card);border:var(--border-subtle)}::-webkit-scrollbar{width:8px}::-webkit-scrollbar-track{background:var(--navy-950)}::-webkit-scrollbar-thumb{background:var(--navy-700);border-radius:4px}::-webkit-scrollbar-thumb:hover{background:var(--accent)}.btn-primary,.back-to-top{color:#0a1120;background:#d4af37}.btn-primary:hover{color:#0a1120;background:#e5c158}:focus-visible{outline-offset:4px;outline:3px solid #2563eb}@media (prefers-reduced-motion:reduce){*,:before,:after{scroll-behavior:auto!important;transition-duration:.01ms!important;animation-duration:.01ms!important}}.hvac-master [style*="background: var(--navy-dark)"]{--text-primary:#f8fafc;--text-secondary:#cbd5e1;--text-muted:#cbd5e1;--accent:#e5c158}.text-gradient{background-image:linear-gradient(135deg,#705310,#8c6d1c)}.floating-cta{z-index:9999;opacity:0;visibility:hidden;transition:all var(--transition-smooth);position:fixed;bottom:2rem;right:2rem;transform:translateY(20px)}.floating-cta.visible{opacity:1;visibility:visible;transform:translateY(0)}.floating-cta .btn{box-shadow:var(--shadow-md);border:var(--border-accent);background:var(--bg-primary);color:var(--text-primary);backdrop-filter:blur(20px);padding:1rem 1.5rem}.floating-cta .btn:hover{background:var(--accent);color:var(--navy-950)}.pulse-icon{background:var(--accent);border-radius:50%;width:10px;height:10px;margin-right:10px;animation:2s infinite pulse-gold;display:inline-block}@keyframes pulse-gold{0%{box-shadow:0 0 #d4af37b3}70%{box-shadow:0 0 0 10px #d4af3700}to{box-shadow:0 0 #d4af3700}}.back-to-top{z-index:9998;background:var(--accent);width:50px;height:50px;color:var(--navy-darker);cursor:pointer;opacity:0;visibility:hidden;transition:all var(--transition-smooth);box-shadow:var(--shadow-md);border:none;border-radius:50%;justify-content:center;align-items:center;display:flex;position:fixed;bottom:2rem;left:2rem;transform:translateY(20px)}.back-to-top.visible{opacity:1;visibility:visible;transform:translateY(0)}.back-to-top:hover{background:var(--accent-hover);box-shadow:var(--shadow-lg);transform:translateY(-3px)}.cookie-consent{z-index:99999;background:var(--bg-primary);border-top:2px solid var(--accent);flex-wrap:wrap;justify-content:center;align-items:center;gap:1.5rem;padding:1rem 2rem;display:flex;position:fixed;bottom:0;left:0;right:0;box-shadow:0 -5px 20px #0000004d}.cookie-consent p{color:var(--text-secondary);margin:0;font-size:.9rem}.cookie-consent a{color:var(--accent);text-decoration:underline}@media (width<=640px){.cookie-consent{text-align:center;flex-direction:column;padding:1rem}}