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var(--transition-normal)}.stat-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-xl)}.stat-value{font-size:var(--font-size-4xl);font-weight:800;margin-bottom:var(--spacing-1)}.stat-label{font-size:var(--font-size-sm);color:var(--color-gray-500);font-weight:500}.focus-mode{position:fixed;inset:0;background:var(--color-white);z-index:var(--z-modal);overflow:auto;animation:fadeIn var(--transition-normal)}.focus-mode .study-content{max-width:800px;margin:0 auto;padding:var(--spacing-16) var(--spacing-8);box-shadow:none;border-radius:0}.focus-mode-close{position:fixed;top:var(--spacing-6);right:var(--spacing-6);z-index:1}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}@keyframes slideUp{0%{opacity:0;transform:translateY(30px)}to{opacity:1;transform:translateY(0)}}@keyframes slideIn{0%{opacity:0;transform:translate(-30px)}to{opacity:1;transform:translate(0)}}@keyframes pulse{0%,to{transform:scale(1)}50%{transform:scale(1.05)}}.animate-fadeIn{animation:fadeIn 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var(--transition-fast)}.payment-method:hover{background:var(--color-gray-100);transform:translateY(-2px)}.payment-method.selected{border-color:var(--color-primary);background:#0d8a8a14;box-shadow:var(--shadow-glow)}.payment-icon{font-size:3rem}.payment-label{font-weight:700;font-size:var(--font-size-lg)}.pix-qr{display:flex;flex-direction:column;align-items:center;gap:var(--spacing-6);padding:var(--spacing-8);background:var(--color-gray-50);border-radius:var(--radius-2xl)}.pix-qr-code{width:200px;height:200px;background:var(--color-white);border:2px solid var(--color-gray-200);border-radius:var(--radius-xl);display:flex;align-items:center;justify-content:center;font-size:var(--font-size-sm);color:var(--color-gray-500)}@media(max-width:768px){.nav-menu{display:none}.nav-container{height:70px}.nav-logo img{height:40px}.page{padding:var(--spacing-6) 0}.page-title{font-size:var(--font-size-2xl)}.container{padding:0 var(--spacing-4)}.exam-header{flex-direction:column;gap:var(--spacing-4)}.exam-progress{width:100%;margin:0}.results-stats{grid-template-columns:1fr}.results-score{font-size:3.5rem}.payment-methods{grid-template-columns:1fr}.modal{margin:var(--spacing-4)}}::-webkit-scrollbar{width:8px;height:8px}::-webkit-scrollbar-track{background:var(--color-gray-100);border-radius:var(--radius-full)}::-webkit-scrollbar-thumb{background:linear-gradient(180deg,var(--color-gray-300) 0%,var(--color-gray-400) 100%);border-radius:var(--radius-full)}::-webkit-scrollbar-thumb:hover{background:linear-gradient(180deg,var(--color-gray-400) 0%,var(--color-gray-500) 100%)}::selection{background:var(--color-primary);color:var(--color-white)}.gradient-text{background:linear-gradient(135deg,var(--color-primary) 0%,var(--color-secondary) 100%);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}