:root{--qt-orange:#FF8C00;--qt-concrete:#8D7B68;--qt-black:#0F0F0F;--qt-white:#FFFFFF;--qt-light:#F5F7FA;--qt-gray:#E2E8F0;--qt-dark-gray:#1A1A1A;--qt-gradient:linear-gradient(135deg,var(--qt-orange) 0%,#E57D00 100%);--font-headline:'Roboto Slab',serif;--font-body:'Roboto',sans-serif;}body{font-family:var(--font-body),sans-serif;background-color:var(--qt-black);color:#E2E8F0;font-weight:400;line-height:1.6;}h1,h2,h3,h4,.text-5xl,.text-4xl,.text-3xl,.text-2xl{font-family:var(--font-headline),serif !important;font-weight:700;line-height:1.2;letter-spacing:-0.5px;}section h2{font-family:var(--font-headline),serif;font-weight:800;font-size:2.5rem;letter-spacing:-1px;}button,.font-semibold{font-family:var(--font-body),sans-serif;font-weight:600;}label,input,select,textarea{font-family:var(--font-body),sans-serif;font-weight:500;}.text-sm,.text-xs,footer{font-weight:400;}nav a{font-weight:500;}.qt-gradient{background:var(--qt-gradient);}.hero-bg{background:linear-gradient(rgba(15,15,15,0.92),rgba(15,15,15,0.78)),url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1000 500"><rect width="1000" height="500" fill="%230F0F0F"/><circle cx="200" cy="150" r="3" fill="%23FF8C00" opacity="0.4"/><circle cx="800" cy="100" r="2" fill="%238D7B68" opacity="0.5"/><circle cx="600" cy="350" r="4" fill="%23FF8C00" opacity="0.3"/></svg>');background-size:cover;background-position:center;}.segment-card{background:var(--qt-dark-gray);border:1px solid #2D2D2D;transition:all 0.3s ease;}.segment-card:hover{border-color:var(--qt-orange);transform:translateY(-8px);box-shadow:0 25px 50px rgba(255,140,0,0.15);}.roi-calculator{background:#1A1A1A;border-radius:1.5rem;padding:2.5rem;}.testimonial-card,.case-card{background:#1A1A1A;border:1px solid #2D2D2D;}.case-card:hover{transform:translateY(-5px);box-shadow:0 10px 20px rgba(255,140,0,0.1);}.stats-card{background:#1A1A1A;padding:1.5rem;border-radius:1rem;border:1px solid #2D2D2D;}.text-gray-600{color:#94A3B8 !important;}.text-gray-700{color:#CBD5E1 !important;}.text-gray-900{color:#F1F5F9 !important;}.whatsapp-float{position:fixed;bottom:30px;right:30px;width:60px;height:60px;background:linear-gradient(135deg,#25D366 0%,#128C7E 100%);color:white;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:32px;box-shadow:0 4px 15px rgba(37,211,102,0.4);z-index:1000;transition:all 0.3s ease;animation:pulse-whatsapp 2s infinite;}.whatsapp-float:hover{transform:scale(1.1);box-shadow:0 6px 25px rgba(37,211,102,0.6);background:linear-gradient(135deg,#128C7E 0%,#25D366 100%);}.whatsapp-float i{animation:shake 1s ease infinite;}@keyframes pulse-whatsapp{0%,100%{box-shadow:0 4px 15px rgba(37,211,102,0.4);}50%{box-shadow:0 4px 25px rgba(37,211,102,0.7),0 0 0 10px rgba(37,211,102,0.1);}}@keyframes shake{0%,100%{transform:rotate(0deg);}10%,30%,50%,70%,90%{transform:rotate(-10deg);}20%,40%,60%,80%{transform:rotate(10deg);}}@media (max-width:768px){.whatsapp-float{width:55px;height:55px;bottom:20px;right:20px;font-size:28px;}}