@import"https://fonts.googleapis.com/css2?family=Nunito:wght@400;600;700;800&display=swap";*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}:root{--primary: #8854d0;--primary-dark: #6c5ce7;--secondary: #00cec9;--secondary-dark: #00b894;--accent: #fd79a8;--accent-dark: #e84393;--answer-a: #ff9f43;--answer-b: #0abde3;--answer-c: #10ac84;--answer-d: #ee5253;--correct: #26de81;--incorrect: #fc5c65;--background: #f6f9fc;--text: #2d3436;--text-light: #636e72;--white: #ffffff;--font-main: "Nunito", sans-serif;--h1-size: 3.2rem;--h2-size: 2.4rem;--h3-size: 1.8rem;--text-size: 1.1rem;--space-xs: .5rem;--space-sm: 1rem;--space-md: 2rem;--space-lg: 3rem;--space-xl: 4rem;--radius-sm: 8px;--radius-md: 12px;--radius-lg: 20px;--radius-circle: 50%;--shadow-sm: 0 2px 10px rgba(0, 0, 0, .05);--shadow-md: 0 10px 20px rgba(0, 0, 0, .1);--shadow-lg: 0 15px 35px rgba(0, 0, 0, .15)}html,body{font-family:var(--font-main);font-size:16px;line-height:1.5;color:var(--text);background-color:var(--background);overflow-x:hidden;height:100%}.app{min-height:100vh;width:100%;position:relative;overflow:hidden}h1,h2,h3,h4,h5,h6{font-weight:800;line-height:1.2;margin-bottom:var(--space-sm)}h1{font-size:var(--h1-size)}h2{font-size:var(--h2-size)}h3{font-size:var(--h3-size)}p{font-size:var(--text-size);margin-bottom:var(--space-sm)}.container{width:100%;max-width:1200px;margin:0 auto;padding:var(--space-md)}.screen{display:none;position:absolute;top:0;left:0;width:100%;height:100%;min-height:100vh;z-index:1;overflow-y:auto}.screen.active{display:block;z-index:10;animation:fadeIn .5s ease}.host-section,.student-section{display:none;width:100%}.host-section.active,.student-section.active{display:block;animation:slideUp .4s ease}#welcome-screen{background-image:linear-gradient(135deg,var(--primary),var(--primary-dark));display:flex;justify-content:center;align-items:center;text-align:center}#host-screen,#student-screen{background-color:#f8f9fa}.welcome-content{background-color:var(--white);border-radius:var(--radius-lg);padding:var(--space-lg);box-shadow:var(--shadow-lg);max-width:600px;width:100%}.app-title{font-size:4rem;color:var(--primary);margin-bottom:var(--space-xs);text-transform:uppercase;letter-spacing:2px}.app-subtitle{color:var(--text-light);font-size:1.5rem;margin-bottom:var(--space-md)}.role-buttons{display:flex;gap:var(--space-md);justify-content:center}.btn{display:inline-block;padding:.75rem 1.5rem;border:none;border-radius:var(--radius-sm);font-family:var(--font-main);font-weight:700;font-size:1rem;text-align:center;cursor:pointer;transition:all .3s ease}.btn--primary{background-color:var(--primary);color:var(--white)}.btn--primary:hover{background-color:var(--primary-dark);transform:translateY(-3px);box-shadow:var(--shadow-md)}.btn--secondary{background-color:var(--secondary);color:var(--white)}.btn--secondary:hover{background-color:var(--secondary-dark);transform:translateY(-3px);box-shadow:var(--shadow-md)}.btn--lg{padding:1rem 2rem;font-size:1.2rem}.btn:disabled{opacity:.5;cursor:not-allowed;transform:none!important;box-shadow:none!important}.role-btn{flex:1;max-width:200px;padding:var(--space-md);border-radius:var(--radius-md);transition:all .3s cubic-bezier(.175,.885,.32,1.275)}.role-btn:hover{transform:scale(1.05)}.pin-display{background-color:var(--white);padding:var(--space-md);border-radius:var(--radius-md);text-align:center;margin-bottom:var(--space-md);box-shadow:var(--shadow-sm)}.pin-code{font-size:4rem;font-weight:800;letter-spacing:8px;color:var(--primary);margin:var(--space-sm) 0;text-shadow:2px 2px 0px rgba(0,0,0,.1)}.players-section{background-color:var(--white);padding:var(--space-md);border-radius:var(--radius-md);margin-bottom:var(--space-md);box-shadow:var(--shadow-sm)}.players-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:var(--space-sm);margin-top:var(--space-sm)}.player-card{background-color:var(--primary);color:var(--white);padding:var(--space-sm);border-radius:var(--radius-sm);text-align:center;font-weight:600;animation:bounceIn .5s ease}.start-btn{width:100%;max-width:300px;margin:0 auto;display:block}.question-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:var(--space-md)}.question-number{font-size:1.4rem;font-weight:700;color:var(--primary)}.timer-display{display:flex;justify-content:center;align-items:center}.timer-circle{width:60px;height:60px;background-color:var(--primary);color:var(--white);border-radius:var(--radius-circle);display:flex;justify-content:center;align-items:center;font-size:1.8rem;font-weight:800;animation:pulse 1s infinite}.question-content{background-color:var(--white);padding:var(--space-md);border-radius:var(--radius-md);box-shadow:var(--shadow-md);margin-bottom:var(--space-md)}.question-content h2{text-align:center;margin-bottom:var(--space-md);font-size:2rem}.answers-display{display:grid;grid-template-columns:repeat(2,1fr);gap:var(--space-sm)}.answer-option{padding:var(--space-md);border-radius:var(--radius-md);display:flex;align-items:center;min-height:100px;box-shadow:var(--shadow-sm);transition:transform .3s ease}.answer-option:hover{transform:translateY(-5px)}.answer-a{background-color:var(--answer-a)}.answer-b{background-color:var(--answer-b)}.answer-c{background-color:var(--answer-c)}.answer-d{background-color:var(--answer-d)}.answer-letter{font-size:2rem;font-weight:800;color:#ffffffb3;margin-right:var(--space-sm)}.answer-text{color:var(--white);font-weight:600;font-size:1.2rem}.results-content{display:grid;grid-template-columns:1fr;gap:var(--space-md);margin-bottom:var(--space-md)}.correct-answer{background-color:var(--correct);padding:var(--space-md);border-radius:var(--radius-md);color:var(--white);text-align:center;box-shadow:var(--shadow-sm);animation:fadeInUp .5s ease}.leaderboard{background-color:var(--white);padding:var(--space-md);border-radius:var(--radius-md);box-shadow:var(--shadow-sm)}.leaderboard h3{text-align:center;margin-bottom:var(--space-md);color:var(--primary)}.leaderboard-item{display:flex;justify-content:space-between;align-items:center;padding:var(--space-sm);background-color:var(--background);border-radius:var(--radius-sm);margin-bottom:var(--space-xs);animation:fadeIn .5s ease}.leaderboard-position{font-weight:800;color:var(--primary);width:40px}.leaderboard-name{flex-grow:1;font-weight:600}.leaderboard-score{font-weight:800;color:var(--accent)}.final-leaderboard{background-color:var(--white);padding:var(--space-md);border-radius:var(--radius-md);box-shadow:var(--shadow-md);margin-bottom:var(--space-md);max-height:400px;overflow-y:auto}.join-form,.nickname-form{background-color:var(--white);padding:var(--space-lg);border-radius:var(--radius-md);box-shadow:var(--shadow-md);max-width:500px;margin:0 auto;text-align:center}.form-control{width:100%;padding:var(--space-md);margin-bottom:var(--space-md);font-size:1.5rem;border:2px solid #e0e0e0;border-radius:var(--radius-sm);text-align:center;font-family:var(--font-main)}.form-control:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px #8854d033}.pin-input{font-size:2.5rem;font-weight:700;letter-spacing:8px}.error-message{background-color:var(--incorrect);color:#fff;padding:var(--space-sm);border-radius:var(--radius-sm);margin-top:var(--space-sm);font-weight:600;transform:translateY(-10px);opacity:0;transition:all .3s ease}.error-message.show{transform:translateY(0);opacity:1}.waiting-content{text-align:center;padding:var(--space-lg)}.loading-spinner{width:80px;height:80px;margin:var(--space-md) auto;border:8px solid rgba(136,84,208,.2);border-top-color:var(--primary);border-radius:50%;animation:spin 1s infinite linear}.student-question-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:var(--space-md)}.question-info{font-size:1.2rem;font-weight:700;color:var(--text-light)}.student-timer{width:60px;height:60px;border-radius:var(--radius-circle);background-color:var(--primary);color:var(--white);display:flex;justify-content:center;align-items:center;font-size:1.8rem;font-weight:800;animation:pulse 1s infinite}.student-question-text{background-color:var(--white);padding:var(--space-md);border-radius:var(--radius-md);box-shadow:var(--shadow-sm);margin-bottom:var(--space-md);text-align:center}.student-question-text h3{font-size:1.8rem}.answer-buttons{display:grid;grid-template-columns:1fr;gap:var(--space-md)}.answer-btn{display:flex;align-items:center;padding:var(--space-md);border:none;border-radius:var(--radius-md);font-family:var(--font-main);font-size:1.2rem;font-weight:600;color:var(--white);cursor:pointer;transition:all .3s cubic-bezier(.175,.885,.32,1.275);height:80px;text-align:left}.answer-btn:hover:not(:disabled){transform:scale(1.03);box-shadow:var(--shadow-md)}.answer-btn.selected{transform:scale(1.05);box-shadow:var(--shadow-lg)}.answer-btn:disabled{cursor:not-allowed}.answer-btn-a{background-color:var(--answer-a)}.answer-btn-b{background-color:var(--answer-b)}.answer-btn-c{background-color:var(--answer-c)}.answer-btn-d{background-color:var(--answer-d)}.btn-letter{font-size:1.8rem;font-weight:800;margin-right:var(--space-md);color:#fffc}.btn-text{flex-grow:1}.student-result-content{background-color:var(--white);padding:var(--space-md);border-radius:var(--radius-md);box-shadow:var(--shadow-md);text-align:center;max-width:600px;margin:0 auto}#answer-feedback{font-size:1.8rem;font-weight:700;padding:var(--space-md);border-radius:var(--radius-md);margin-bottom:var(--space-md);animation:bounceIn .6s ease}#answer-feedback.correct{background-color:var(--correct);color:var(--white)}#answer-feedback.incorrect{background-color:var(--incorrect);color:var(--white)}.score-display{font-size:2rem;animation:fadeInUp .5s ease}.final-score-content{background-color:var(--white);padding:var(--space-lg);border-radius:var(--radius-md);box-shadow:var(--shadow-md);text-align:center;max-width:600px;margin:0 auto}.final-score{margin:var(--space-md) 0;font-size:2rem;color:var(--primary);animation:pulse 2s infinite}.final-position{font-weight:700;margin-bottom:var(--space-md);font-size:1.3rem}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}@keyframes fadeInUp{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}@keyframes slideUp{0%{opacity:0;transform:translateY(30px)}to{opacity:1;transform:translateY(0)}}@keyframes pulse{0%{transform:scale(1)}50%{transform:scale(1.05)}to{transform:scale(1)}}@keyframes spin{to{transform:rotate(360deg)}}@keyframes bounceIn{0%{opacity:0;transform:scale(.3)}50%{opacity:1;transform:scale(1.05)}70%{transform:scale(.9)}to{transform:scale(1)}}@media (min-width: 768px){.results-content{grid-template-columns:1fr 2fr}.answer-buttons{grid-template-columns:repeat(2,1fr)}}.confetti{position:fixed;width:10px;height:10px;opacity:0;z-index:1000;pointer-events:none}@keyframes confetti-fall{0%{opacity:1;top:-10%;transform:translate(0) rotate(0)}to{opacity:0;top:100%;transform:translate(100px) rotate(360deg)}}