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pulse{0%{box-shadow:0 0 0 0 rgba(0,0,0,.15)}70%{box-shadow:0 0 0 18px rgba(0,0,0,0)}to{box-shadow:0 0 0 0 rgba(0,0,0,0)}}.loader{position:fixed;inset:0;background:#fff;z-index:9999;display:flex;align-items:center;justify-content:center;transition:opacity .5s}.loader.hidden{opacity:0;pointer-events:none}.spinner{width:50px;height:50px;border:5px solid #f3f3f3;border-top:5px solid var(--primary-color);border-radius:50%;animation:spin 1s linear infinite}@keyframes spin{to{transform:rotate(1turn)}}.scroll-progress{position:fixed;top:0;left:0;width:0;height:4px;background:var(--gradient-accent);z-index:9998;transition:width .1s}@keyframes fadeInUp{0%{opacity:0;transform:translateY(30px)}to{opacity:1;transform:translateY(0)}}.animate-fadeInUp{animation:fadeInUp .8s ease forwards}section{scroll-margin-top:80px}.glass{background:rgba(255,255,255,.85);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);border:1px solid rgba(255,255,255,.6)}@media (max-width:768px){.hero-title{font-size:2rem}.hero-subtitle{font-size:1rem}.navbar-brand{font-size:1.25rem}.floating-buttons{bottom:20px;right:20px}.service-card{margin-bottom:2rem}.contact-form{padding:2rem}}