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768px){.completion-content{padding:2rem 1rem}.completion-actions{flex-direction:column;align-items:center}.quiz-content{padding:1.5rem;height:auto;max-height:calc(100vh - 120px);overflow-y:auto}.quiz-question{height:auto;flex:none}.quiz-question h4{font-size:1.1rem;margin-bottom:1.2rem}.quiz-options{gap:.6rem;flex-grow:0;margin-bottom:1rem}.quiz-option{padding:.7rem 1rem}.quiz-navigation{padding:1rem 1.5rem;min-height:70px;flex-direction:column;gap:1rem}.nav-controls{width:100%;justify-content:space-between}.quiz-video-btn{width:100%;justify-content:center}.nav-controls button:only-child{width:100%}.quiz-results{padding:2rem 1rem;overflow-y:auto;max-height:100vh}.results-actions{flex-direction:column;align-items:center}.score{font-size:3rem}}@media (max-width: 480px){.completion-icon,.results-icon{font-size:3rem}.completion-content h3,.quiz-results h3{font-size:1.5rem}.quiz-progress-minimal 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a{color:#fff;text-decoration:none;font-weight:500}.footer-contact a:hover{color:var(--primary-color)}.social-links{display:flex;justify-content:center;gap:1rem}.social-links a{display:inline-flex;align-items:center;justify-content:center;width:40px;height:40px;background:var(--gradient);color:#fff;border-radius:50%;text-decoration:none;transition:all .3s ease;font-size:1.2rem}.social-links a:hover{background:linear-gradient(135deg,var(--primary-light) 0%,var(--primary-color) 100%);transform:translateY(-2px)}.footer-copyright{border-top:1px solid #34495e;padding-top:2rem;text-align:center}.footer-copyright p{margin-bottom:.5rem;color:#fff;font-size:.9rem;line-height:1.5}.footer-copyright strong{color:#fff}@media (max-width: 768px){.footer{padding:2rem 0 1rem}.footer-container{padding:0 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500;--font-weight-bold: 600;--spacing-xs: .25rem;--spacing-sm: .5rem;--spacing-md: 1rem;--spacing-lg: 1.5rem;--spacing-xl: 2rem;--border-radius: 4px;--border-radius-lg: 8px;--shadow-sm: 0 1px 3px rgba(0, 0, 0, .1);--shadow-md: 0 4px 6px rgba(0, 0, 0, .1);--shadow-lg: 0 10px 15px rgba(0, 0, 0, .1);--transition-fast: .15s ease;--transition-normal: .3s ease;--transition-slow: .5s ease}*{margin:0;padding:0;box-sizing:border-box}body{font-family:var(--font-family);line-height:1.6;color:var(--text-color);background:var(--gradient);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}.App{min-height:100vh;display:flex;flex-direction:column}.App main{flex:1}.auth-gate{position:relative;min-height:100vh;width:100%;overflow:hidden;padding-top:80px}.auth-background{position:fixed;top:80px;left:0;right:0;bottom:0;background:var(--gradient);z-index:1;display:flex;align-items:center;justify-content:center;opacity:.95;overflow:hidden}.auth-background:before{content:"";position:absolute;top:0;left:0;right:0;bottom:0;background:radial-gradient(circle at 15% 40%,rgba(255,255,255,.12) 0%,transparent 50%),radial-gradient(circle at 85% 10%,rgba(255,255,255,.25) 0%,transparent 50%),radial-gradient(circle at 30% 85%,rgba(255,255,255,.08) 0%,transparent 50%);pointer-events:none}.auth-background__branding{text-align:center;color:#fff;max-width:400px;padding:var(--spacing-xl);transform:translateY(-10%);position:relative;z-index:2}.auth-background__logo{width:120px;height:auto;margin-bottom:var(--spacing-lg)}.auth-background__title{font-size:2.5rem;font-weight:var(--font-weight-bold);margin-bottom:var(--spacing-md);color:#fff;text-shadow:0 2px 4px rgba(0,0,0,.3)}.auth-background__subtitle{font-size:1.125rem;font-weight:var(--font-weight-medium);color:#ffffffe6;line-height:1.5;margin-bottom:0}.loading-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background:var(--gradient);z-index:9999;display:flex;align-items:center;justify-content:center}.is-loading{pointer-events:none;opacity:.7;transition:opacity var(--transition-normal)}.is-loading *{cursor:wait!important}:focus{outline:2px solid var(--primary-color);outline-offset:2px}:focus:not(:focus-visible){outline:none}button,input,select,textarea,.btn{transition:all var(--transition-normal)}h1,h2,h4,h5,h6{margin-bottom:var(--spacing-md);font-weight:var(--font-weight-bold);color:var(--text-color)}h1{font-size:2.5rem}h2{font-size:2rem}h3{font-size:1.5rem}h4{font-size:1.25rem}h5{font-size:1.125rem}h6{font-size:1rem}a{color:var(--primary-color);text-decoration:none;transition:color var(--transition-normal)}a:hover{color:var(--primary-hover)}.text-primary{color:var(--primary-color)}.text-light{color:var(--text-light)}.text-small{font-size:.875rem}.text-large{font-size:1.125rem}.font-medium{font-weight:var(--font-weight-medium)}.font-bold{font-weight:var(--font-weight-bold)}.container{max-width:1200px;margin:0 auto;padding:0 var(--spacing-xl)}.container-sm{max-width:800px;margin:0 auto;padding:0 var(--spacing-xl)}.container-fluid{width:100%;padding:0 var(--spacing-xl)}.btn{display:inline-flex;align-items:center;justify-content:center;padding:var(--spacing-sm) var(--spacing-lg);background-color:var(--primary-color);color:#fff;border:none;border-radius:var(--border-radius);cursor:pointer;font-size:1rem;font-weight:var(--font-weight-medium);font-family:var(--font-family);text-decoration:none;transition:all var(--transition-normal);box-shadow:var(--shadow-sm);min-height:44px}.btn:hover:not(:disabled){background-color:var(--primary-hover);box-shadow:var(--shadow-md);transform:translateY(-1px)}.btn:active:not(:disabled){transform:translateY(0);box-shadow:var(--shadow-sm)}.btn:disabled{opacity:.6;cursor:not-allowed;transform:none}.btn--secondary{background-color:transparent;color:var(--primary-color);border:2px solid var(--primary-color)}.btn--secondary:hover:not(:disabled){background-color:var(--primary-color);color:#fff}.btn--large{padding:var(--spacing-md) var(--spacing-xl);font-size:1.125rem}.btn--small{padding:var(--spacing-xs) var(--spacing-md);font-size:.875rem;min-height:36px}.text-center{text-align:center}.text-left{text-align:left}.text-right{text-align:right}.mt-xs{margin-top:var(--spacing-xs)}.mt-sm{margin-top:var(--spacing-sm)}.mt-md{margin-top:var(--spacing-md)}.mt-lg{margin-top:var(--spacing-lg)}.mt-xl{margin-top:var(--spacing-xl)}.mb-xs{margin-bottom:var(--spacing-xs)}.mb-sm{margin-bottom:var(--spacing-sm)}.mb-md{margin-bottom:var(--spacing-md)}.mb-lg{margin-bottom:var(--spacing-lg)}.mb-xl{margin-bottom:var(--spacing-xl)}.p-xs{padding:var(--spacing-xs)}.p-sm{padding:var(--spacing-sm)}.p-md{padding:var(--spacing-md)}.p-lg{padding:var(--spacing-lg)}.p-xl{padding:var(--spacing-xl)}.d-none{display:none}.d-block{display:block}.d-flex{display:flex}.d-inline-flex{display:inline-flex}.flex-column{flex-direction:column}.flex-row{flex-direction:row}.justify-center{justify-content:center}.justify-between{justify-content:space-between}.align-center{align-items:center}.align-start{align-items:flex-start}.align-end{align-items:flex-end}.border{border:1px solid var(--border-color)}.border-radius{border-radius:var(--border-radius)}.border-radius-lg{border-radius:var(--border-radius-lg)}.shadow-sm{box-shadow:var(--shadow-sm)}.shadow-md{box-shadow:var(--shadow-md)}.shadow-lg{box-shadow:var(--shadow-lg)}@media (max-width: 768px){.container,.container-sm,.container-fluid{padding:0 var(--spacing-md)}h1{font-size:2rem}h2{font-size:1.75rem}h3{font-size:1.25rem}.btn{width:100%;justify-content:center}.btn--small{width:auto}.auth-background__branding{padding:var(--spacing-md);max-width:320px}.auth-background__title{font-size:2rem}.auth-background__subtitle{font-size:1rem}.auth-background__logo{width:80px;margin-bottom:var(--spacing-md)}.auth-gate{padding-top:70px}.auth-background{top:70px}}@media (max-width: 480px){.container,.container-sm,.container-fluid{padding:0 var(--spacing-sm)}}