.whatsapp-float{position:fixed;bottom:2rem;right:2rem;width:60px;height:60px;background:linear-gradient(135deg,#25d366 0%,#128c7e 100%);border-radius:50%;display:flex;align-items:center;justify-content:center;color:white;text-decoration:none;box-shadow:0 4px 20px rgba(37,211,102,0.4);z-index:1000;transition:all 0.3s ease;opacity:0;visibility:hidden}.whatsapp-float:hover{transform:scale(1.1);box-shadow:0 6px 25px rgba(37,211,102,0.6);color:white}.whatsapp-float svg{width:28px;height:28px}.whatsapp-float::before{content:'';position:absolute;top:0;left:0;right:0;bottom:0;border-radius:50%;background:rgba(37,211,102,0.3);animation:whatsapp-pulse 2s infinite;z-index:-1}@keyframes whatsapp-pulse{0%{transform:scale(1);opacity:1}100%{transform:scale(1.5);opacity:0}}@media (max-width:768px){.whatsapp-float{bottom:1rem;right:1rem;width:50px;height:50px}.whatsapp-float svg{width:24px;height:24px}}.whatsapp-alternating-button{background:linear-gradient(135deg,#25d366 0%,#128c7e 100%);color:white !important;border:none;transition:all 0.3s ease}.whatsapp-alternating-button:hover{background:linear-gradient(135deg,#128c7e 0%,#25d366 100%);transform:translateY(-2px);box-shadow:0 8px 25px rgba(37,211,102,0.4);color:white !important}.btn{position:relative;overflow:hidden}.ripple{position:absolute;border-radius:50%;background:rgba(255,255,255,0.3);transform:scale(0);animation:ripple-animation 0.6s linear;pointer-events:none}@keyframes ripple-animation{to{transform:scale(4);opacity:0}}.form-group{position:relative;margin-bottom:1.5rem}.form-group.focused label{transform:translateY(-20px) scale(0.8);color:var(--primary-blue)}.form-group input,.form-group textarea{width:100%;padding:1rem;border:2px solid var(--gray-300);border-radius:var(--radius-lg);font-size:var(--font-size-base);transition:all var(--transition-fast);background:var(--white)}.form-group input:focus,.form-group textarea:focus{outline:none;border-color:var(--primary-blue);box-shadow:0 0 0 3px rgba(37,99,235,0.1)}.form-group input.valid{border-color:#10b981}.form-group input.invalid{border-color:#ef4444}.form-group label{position:absolute;top:1rem;left:1rem;color:var(--gray-500);transition:all var(--transition-fast);pointer-events:none;background:var(--white);padding:0 0.5rem}.error-message{color:#ef4444;font-size:var(--font-size-sm);margin-top:0.5rem;display:block}.notification{position:fixed;top:2rem;right:2rem;padding:1rem 1.5rem;border-radius:var(--radius-lg);color:white;font-weight:500;z-index:1001;transform:translateX(100%);transition:transform 0.3s ease;max-width:300px}.notification.show{transform:translateX(0)}.notification-success{background:linear-gradient(135deg,#10b981 0%,#059669 100%)}.notification-error{background:linear-gradient(135deg,#ef4444 0%,#dc2626 100%)}.notification-info{background:linear-gradient(135deg,var(--primary-blue) 0%,var(--primary-blue-dark) 100%)}@media (max-width:768px){.nav-menu{position:fixed;top:80px;left:0;right:0;background:rgba(255,255,255,0.95);backdrop-filter:blur(10px);padding:2rem;transform:translateY(-100%);transition:transform 0.3s ease;border-bottom:1px solid var(--gray-200)}.nav-menu.active{transform:translateY(0)}.nav-menu ul{flex-direction:column;gap:1rem}.mobile-menu-toggle.active span:nth-child(1){transform:rotate(45deg) translate(5px,5px)}.mobile-menu-toggle.active span:nth-child(2){opacity:0}.mobile-menu-toggle.active span:nth-child(3){transform:rotate(-45deg) translate(7px,-6px)}body.menu-open{overflow:hidden}}.header.scrolled{background:rgba(255,255,255,0.98);box-shadow:var(--shadow-md)}.header{transition:all 0.3s ease}.loading{display:inline-block;width:20px;height:20px;border:2px solid rgba(255,255,255,0.3);border-radius:50%;border-top-color:white;animation:spin 1s ease-in-out infinite}@keyframes spin{to{transform:rotate(360deg)}}.scroll-progress{position:fixed;top:0;left:0;width:100%;height:3px;background:var(--gradient-primary);transform-origin:left;transform:scaleX(0);z-index:1001;transition:transform 0.1s ease}img[data-src]{opacity:0;transition:opacity 0.3s ease}img.loaded{opacity:1}@keyframes fadeInUp{from{opacity:0;transform:translateY(30px)}to{opacity:1;transform:translateY(0)}}@keyframes slideInLeft{from{opacity:0;transform:translateX(-50px)}to{opacity:1;transform:translateX(0)}}@keyframes slideInRight{from{opacity:0;transform:translateX(50px)}to{opacity:1;transform:translateX(0)}}*{will-change:auto}.hero-img,.quality-img,.content-img{will-change:transform}@media (prefers-reduced-motion:reduce){*,*::before,*::after{animation-duration:0.01ms !important;animation-iteration-count:1 !important;transition-duration:0.01ms !important}}.btn:focus,.nav-link:focus,input:focus,textarea:focus{outline:2px solid var(--primary-blue);outline-offset:2px}@media (prefers-contrast:high){:root{--primary-blue:#0000ff;--gray-600:#000000;--gray-800:#000000}}