@import url(https://fonts.googleapis.com/css2?family=Poppins:wght@400;500;600&display=swap);body{margin:0}code{font-family:source-code-pro,Menlo,Monaco,Consolas,Courier New,monospace}.home-container{align-items:center;background:var(--background);display:flex;justify-content:center;min-height:100vh;padding:20px}.home-content{max-width:900px;text-align:center;width:100%}.home-content .badge{margin-bottom:40px}.home-content h1{color:var(--text-primary);font-size:3rem;font-weight:700;line-height:1.2;margin:0 0 15px}.home-content p{color:var(--text-secondary);font-size:1.2rem;line-height:1.6;margin-bottom:50px;margin-left:auto;margin-right:auto;max-width:600px}.role-selection{grid-gap:40px;display:grid;gap:40px;grid-template-columns:1fr 1fr;margin-top:50px}.role-card{background:var(--surface);border:2px solid #0000;border-radius:20px;box-shadow:0 8px 30px var(--shadow);cursor:pointer;padding:40px 30px;transition:all .3s ease}.role-card:hover{border-color:var(--primary-purple);box-shadow:0 15px 40px var(--shadow);transform:translateY(-8px)}.role-card.selected{background:linear-gradient(135deg,#7765da0d,#5767cd0d);border-color:var(--primary-purple)}.role-header h3{color:var(--text-primary);font-size:1.8rem;font-weight:600;margin-bottom:15px}.role-header p{color:var(--text-secondary);font-size:1rem;line-height:1.5;margin-bottom:30px}.role-card .btn{font-size:1.1rem;padding:16px;width:100%}@media (max-width:768px){.home-content h1{font-size:2.2rem}.role-selection{gap:20px;grid-template-columns:1fr;margin-top:30px}.role-card{padding:30px 25px}}.create-poll-container{margin:0 auto;max-width:1000px;padding:40px 20px}.create-poll-header{margin-bottom:50px}.create-poll-title{color:var(--text-primary);font-size:2.5rem;font-weight:700;margin-bottom:15px}.create-poll-description{color:var(--text-secondary);font-size:1.2rem;line-height:1.6;max-width:700px}.poll-form{background:var(--surface);border:1px solid var(--border-color);border-radius:20px;box-shadow:0 10px 40px var(--shadow);padding:40px}.form-section{margin-bottom:40px}.form-section:last-child{margin-bottom:0}.section-title{font-size:1.3rem;font-weight:600;margin-bottom:20px}.question-input-row{align-items:end;display:flex;gap:20px}.question-input-group{flex:1 1}.time-selector{min-width:200px}.time-display{background:linear-gradient(135deg,var(--primary-purple) 0,var(--secondary-purple) 100%);border-radius:12px;color:#fff;font-weight:600;margin-bottom:10px;padding:15px 20px;text-align:center}.time-slider{-webkit-appearance:none;background:var(--border-color);border-radius:3px;height:6px;outline:none;width:100%}.time-slider::-webkit-slider-thumb{appearance:none;background:var(--primary-purple);border-radius:50%;cursor:pointer;height:20px;width:20px}.time-slider::-moz-range-thumb{background:var(--primary-purple);border:none;border-radius:50%;cursor:pointer;height:20px;width:20px}.question-textarea{background:var(--surface);border:2px solid var(--border-color);border-radius:12px;color:var(--text-primary);font-size:1.1rem;min-height:120px;padding:20px;resize:vertical;transition:all .3s ease;width:100%}.question-textarea:focus{border-color:var(--primary-purple);box-shadow:0 0 0 3px #7765da1a;outline:none}.char-counter{color:var(--text-secondary);font-size:.9rem;margin-top:8px;text-align:right}.options-section{gap:20px}.options-grid,.options-section{display:flex;flex-direction:column}.options-grid{gap:15px}.option-input-group{align-items:center;background:var(--option-bg);border:2px solid #0000;border-radius:12px;display:flex;gap:15px;padding:15px 20px;transition:all .3s ease}.option-input-group:hover{border-color:var(--primary-purple)}.option-number{height:35px;width:35px}.option-input{background:var(--surface);border:1px solid var(--border-color);border-radius:8px;color:var(--text-primary);flex:1 1;font-size:1rem;padding:12px 16px}.option-input:focus{border-color:var(--primary-purple);outline:none}.remove-option-btn{align-items:center;background:#e74c3c;border:none;border-radius:50%;color:#fff;cursor:pointer;display:flex;font-size:18px;height:35px;justify-content:center;transition:all .3s ease;width:35px}.remove-option-btn:hover{background:#c0392b;transform:scale(1.1)}.add-option-btn{align-items:center;background:#0000;border:2px dashed var(--primary-purple);border-radius:12px;color:var(--primary-purple);cursor:pointer;display:flex;font-weight:600;gap:8px;justify-content:center;padding:15px 25px;transition:all .3s ease}.add-option-btn:hover{background:var(--primary-purple);color:#fff}.correctness-section{align-items:center;display:flex;gap:40px}.correctness-group{display:flex;flex-direction:column;gap:15px}.correctness-options{display:flex;gap:25px}.radio-option{align-items:center;color:var(--text-primary);cursor:pointer;display:flex;font-weight:500;gap:10px}.radio-option input[type=radio]{accent-color:var(--primary-purple);height:20px;width:20px}.submit-section{border-top:1px solid var(--border-color);margin-top:50px;padding-top:30px}.ask-question-btn{font-size:1.2rem;font-weight:600;min-width:250px;padding:18px 40px}.disabled-message{background:linear-gradient(135deg,#fff3cd,#ffeaa7);border:1px solid #ffeaa7;border-radius:12px;margin-top:30px;padding:20px;text-align:center}.disabled-message p{color:#856404;font-weight:500;margin:0}@media (max-width:768px){.create-poll-container{padding:20px 15px}.poll-form{padding:30px 20px}.question-input-row{flex-direction:column;gap:15px}.time-selector{min-width:auto}.correctness-section{align-items:stretch;flex-direction:column;gap:20px}}.correctness-toggle{align-items:center;display:flex;gap:10px;margin-left:auto}.correctness-toggle label{align-items:center;color:var(--text-secondary);display:flex;font-size:.9rem;gap:4px}.correctness-toggle input[type=radio]{accent-color:var(--primary-purple);height:16px;width:16px}.live-results-container{margin:0 auto;max-width:1200px;padding:40px 20px;position:relative}.view-history-btn{align-items:center;display:flex;gap:8px;position:absolute;right:20px;top:20px;z-index:10}.results-content{display:block}.question-section{max-width:100%}.section-title{color:var(--text-primary);font-size:1.8rem;font-weight:700;margin-bottom:25px}.results-container{margin-bottom:40px}.results-actions{text-align:center}.new-question-btn{font-size:1.1rem;min-width:250px;padding:16px 32px}.waiting-message{padding:60px 20px;text-align:center}.waiting-message .spinner{margin-bottom:20px}.waiting-message p{color:var(--text-secondary);font-size:1.2rem}@media (max-width:768px){.results-content{display:block}.view-history-btn{margin-bottom:30px;position:static}.question-section{max-width:100%}}.poll-history-overlay{align-items:center;-webkit-backdrop-filter:blur(5px);backdrop-filter:blur(5px);background:#0009;bottom:0;display:flex;justify-content:center;left:0;padding:20px;position:fixed;right:0;top:0;z-index:1000}.poll-history-container{background:var(--surface);border:1px solid var(--border-color);border-radius:20px;box-shadow:0 20px 60px #0000004d;display:flex;flex-direction:column;max-height:90vh;max-width:900px;width:100%}.poll-history-header{align-items:center;background:linear-gradient(135deg,var(--primary-purple) 0,var(--secondary-purple) 100%);border-bottom:1px solid var(--border-color);border-radius:20px 20px 0 0;color:#fff;display:flex;justify-content:space-between;padding:25px 30px}.poll-history-title{font-size:1.8rem;font-weight:700;margin:0}.close-btn{align-items:center;background:#fff3;border:none;border-radius:50%;color:#fff;cursor:pointer;display:flex;font-size:1.5rem;height:40px;justify-content:center;transition:all .3s ease;width:40px}.close-btn:hover{background:#ffffff4d;transform:scale(1.1)}.poll-history-content{flex:1 1;overflow-y:auto;padding:30px}.poll-history-content::-webkit-scrollbar{width:6px}.poll-history-content::-webkit-scrollbar-track{background:var(--option-bg);border-radius:3px}.poll-history-content::-webkit-scrollbar-thumb{background:var(--primary-purple);border-radius:3px}.no-history{color:var(--text-secondary);padding:60px 20px;text-align:center}.no-history-icon{font-size:4rem;margin-bottom:20px;opacity:.5}.history-item{background:var(--option-bg);border:1px solid var(--border-color);border-radius:16px;margin-bottom:25px;padding:25px}.history-item:last-child{margin-bottom:0}.history-header{align-items:center;display:flex;justify-content:space-between;margin-bottom:20px}.question-label{color:var(--text-primary);font-size:1.3rem;font-weight:700}.poll-date{background:var(--surface);border-radius:8px;color:var(--text-secondary);font-size:.9rem;padding:6px 12px}.history-question{background:var(--question-bg);border-radius:12px;color:#fff;font-size:1.1rem;font-weight:500;margin-bottom:20px;padding:20px 25px}.history-results{display:flex;flex-direction:column;gap:15px;margin-bottom:20px}.history-result-item{align-items:center;display:flex;gap:15px}.history-stats,.progress-bar{background:var(--surface)}.history-stats{border-radius:10px;color:var(--text-secondary);display:flex;font-size:.9rem;gap:25px;padding:15px 20px}.stat-item{align-items:center;display:flex;gap:8px}.stat-value{color:var(--text-primary);font-weight:600}@media (max-width:768px){.poll-history-overlay{padding:10px}.poll-history-container{max-height:95vh}.poll-history-header{padding:20px}.poll-history-title{font-size:1.5rem}.history-item,.poll-history-content{padding:20px}.history-header{align-items:flex-start}.history-header,.history-stats{flex-direction:column;gap:10px}}.student-list-container{max-width:800px}.student-list-header{margin-bottom:30px}.student-list-header h2{color:#333;font-size:1.8rem;margin-bottom:8px}.student-list-header p{color:#666;font-size:1.1rem}.students-grid{grid-gap:20px;display:grid;gap:20px;grid-template-columns:repeat(auto-fill,minmax(300px,1fr))}.no-students{grid-column:1/-1}.empty-state{padding:60px 20px;text-align:center}.empty-icon{font-size:4rem;margin-bottom:20px}.empty-state h3{color:#333;margin-bottom:10px}.empty-state p{color:#666}.student-card{align-items:center;background:#fff;border:2px solid #e1e5e9;border-radius:12px;display:flex;justify-content:space-between;padding:20px;transition:all .2s ease}.student-card:hover{border-color:var(--primary-purple);box-shadow:0 4px 12px #0000001a;transform:translateY(-2px)}.student-info{gap:15px}.student-avatar,.student-info{align-items:center;display:flex}.student-avatar{background:var(--primary-purple);border-radius:50%;color:#fff;font-size:1.5rem;font-weight:700;height:50px;justify-content:center;width:50px}.student-details h4{color:#333;margin-bottom:4px}.student-status{font-size:.9rem;margin-bottom:2px}.join-time{color:#666;font-size:.8rem}.remove-student-btn{background:#ff4757;border:none;border-radius:8px;color:#fff;cursor:pointer;font-size:1.2rem;height:40px;transition:all .2s ease;width:40px}.remove-student-btn:hover{background:#ff3742;transform:scale(1.05)}@media (max-width:768px){.students-grid{grid-template-columns:1fr}}.chat-popup{background:var(--surface);border:1px solid var(--border-color);border-radius:16px;bottom:110px;box-shadow:0 15px 50px var(--shadow);display:flex;flex-direction:column;max-height:550px;overflow:hidden;position:fixed;right:30px;transition:all .3s ease;width:380px;z-index:1000}.chat-popup.minimized{max-height:70px}.chat-header{background:linear-gradient(135deg,var(--primary-purple) 0,var(--secondary-purple) 100%);color:#fff;justify-content:space-between;padding:18px 25px}.chat-header,.chat-title{align-items:center;display:flex}.chat-title{gap:10px}.chat-title h3{font-size:1.1rem;font-weight:600;margin:0}.chat-icon{font-size:1.3rem}.online-indicator{background:#ffffff40;border-radius:12px;font-size:.8rem;font-weight:500;padding:4px 10px}.chat-controls{display:flex;gap:8px}.close-btn,.minimize-btn{align-items:center;background:#fff3;border:none;border-radius:6px;color:#fff;cursor:pointer;display:flex;font-size:1.1rem;height:32px;justify-content:center;transition:all .2s ease;width:32px}.close-btn:hover,.minimize-btn:hover{background:#ffffff4d;transform:scale(1.1)}.chat-messages{background:var(--background);display:flex;flex:1 1;flex-direction:column;gap:15px;max-height:350px;overflow-y:auto;padding:20px}.chat-messages::-webkit-scrollbar{width:4px}.chat-messages::-webkit-scrollbar-track{background:var(--option-bg);border-radius:2px}.chat-messages::-webkit-scrollbar-thumb{background:var(--primary-purple);border-radius:2px}.no-messages{color:var(--text-secondary);font-style:italic;padding:30px 20px;text-align:center}.no-messages:before{content:"💬";display:block;font-size:2rem;margin-bottom:10px;opacity:.5}.message{word-wrap:break-word;display:flex;flex-direction:column;max-width:85%}.message.own-message{align-self:flex-end}.message-header{align-items:center;display:flex;gap:10px;justify-content:space-between;margin-bottom:6px}.sender-name{font-size:.85rem;font-weight:600}.message.teacher .sender-name{color:var(--primary-purple)}.message.student .sender-name{color:var(--secondary-purple)}.message-time{color:var(--text-secondary);font-size:.75rem}.message-text{background:var(--option-bg);border-radius:12px;color:var(--text-primary);font-size:.9rem;line-height:1.4;padding:10px 15px}.message.own-message .message-text{background:linear-gradient(135deg,var(--primary-purple) 0,var(--secondary-purple) 100%);color:#fff}.message.teacher .message-text{border-left:3px solid var(--primary-purple)}.chat-actions{display:flex;justify-content:center;padding:0 20px 15px}.clear-chat-btn{background:linear-gradient(135deg,#e74c3c,#c0392b);border:none;border-radius:8px;color:#fff;cursor:pointer;font-size:.85rem;font-weight:500;padding:8px 16px;transition:all .3s ease}.clear-chat-btn:hover{box-shadow:0 4px 12px #e74c3c4d;transform:translateY(-1px)}.chat-input-form{align-items:center;background:var(--surface);border-top:1px solid var(--border-color);display:flex;gap:12px;padding:20px}.emoji-btn{background:none;border:none;border-radius:50%;cursor:pointer;flex-shrink:0;font-size:1.4rem;padding:8px;transition:all .2s ease}.emoji-btn:hover{background:var(--option-bg);transform:scale(1.1)}.chat-input{background:var(--background);border:2px solid var(--border-color);border-radius:25px;color:var(--text-primary);flex:1 1;font-size:.9rem;outline:none;padding:12px 18px;transition:all .3s ease}.chat-input:focus{border-color:var(--primary-purple);box-shadow:0 0 0 3px #7765da1a}.send-btn{background:linear-gradient(135deg,var(--primary-purple) 0,var(--secondary-purple) 100%);border:none;border-radius:25px;color:#fff;cursor:pointer;flex-shrink:0;font-size:.9rem;font-weight:600;padding:12px 20px;transition:all .3s ease}.send-btn:hover:not(:disabled){box-shadow:0 4px 15px #7765da66;transform:translateY(-1px)}.send-btn:disabled{cursor:not-allowed;opacity:.5;transform:none}@media (max-width:768px){.chat-popup{bottom:90px;max-width:380px;right:15px;width:calc(100vw - 30px)}.chat-header{padding:15px 20px}.chat-messages{max-height:300px;padding:15px}.chat-input-form{padding:15px}}.chat-float-btn{align-items:center;background:linear-gradient(135deg,var(--primary-purple) 0,var(--secondary-purple) 100%);border:2px solid #fff;border-radius:50%;bottom:25px;box-shadow:0 8px 25px #7765da66;color:#fff;cursor:pointer;display:flex;font-size:1.5rem;height:60px;justify-content:center;opacity:1!important;position:fixed;right:25px;transition:all .3s ease;visibility:visible!important;width:60px;z-index:10000}.chat-float-btn:hover{box-shadow:0 12px 35px #7765da80;transform:translateY(-3px) scale(1.05)}.chat-float-btn.has-notification{animation:bounce 2s infinite}.notification-badge{align-items:center;background:linear-gradient(135deg,#ff4757,#ff3742);border:2px solid #fff;border-radius:50%;box-shadow:0 2px 8px #0003;color:#fff;display:flex;font-size:.7rem;font-weight:700;height:22px;justify-content:center;min-width:22px;position:absolute;right:-5px;top:-5px;z-index:10001}.pulse-animation{animation:pulse 2s infinite;background:linear-gradient(135deg,var(--primary-purple) 0,var(--secondary-purple) 100%);border-radius:50%;bottom:-2px;left:-2px;position:absolute;right:-2px;top:-2px;z-index:-1}@keyframes bounce{0%,20%,50%,80%,to{transform:translateY(0) scale(1)}40%{transform:translateY(-8px) scale(1.05)}60%{transform:translateY(-4px) scale(1.02)}}@media (max-width:768px){.chat-float-btn{bottom:20px;font-size:1.3rem;height:55px;right:20px;width:55px}.notification-badge{font-size:.65rem;height:20px;min-width:20px;right:-4px;top:-4px}}@media (max-width:480px){.chat-float-btn{bottom:15px;font-size:1.2rem;height:50px;right:15px;width:50px}.notification-badge{font-size:.6rem;height:18px;min-width:18px;right:-3px;top:-3px}}@media (min-width:769px){.chat-float-btn{right:30px}}.teacher-container{background-color:#f8f9fa;min-height:100vh}.teacher-header{align-items:center;background:#fff;border-bottom:1px solid #e1e5e9;display:flex;flex-wrap:wrap;gap:20px;justify-content:space-between;padding:20px}.teacher-header h1{color:#333;font-size:1.8rem;margin:0}.student-count{background:var(--primary-purple);border-radius:20px;color:#fff;font-weight:500;padding:8px 16px}.student-count span{font-weight:700;margin-left:8px}.teacher-content{display:flex;gap:20px;margin:0 auto;max-width:1400px;padding:20px}.teacher-nav{display:flex;flex-direction:column;gap:10px;min-width:200px}.nav-btn{background:#fff;border:2px solid #e1e5e9;border-radius:8px;cursor:pointer;font-weight:500;padding:12px 20px;text-align:left;transition:all .2s ease}.nav-btn:hover{color:var(--primary-purple)}.nav-btn.active,.nav-btn:hover{border-color:var(--primary-purple)}.nav-btn.active{background:var(--primary-purple);color:#fff}.nav-btn:disabled{cursor:not-allowed;opacity:.5}.history-btn{background:var(--secondary-purple)!important;border-color:var(--secondary-purple)!important;color:#fff!important}.teacher-main{background:#fff;border-radius:12px;box-shadow:0 2px 8px #0000001a;flex:1 1;padding:30px}.loading{align-items:center;color:#666;display:flex;font-size:1.2rem;height:100vh;justify-content:center}@media (max-width:768px){.teacher-content{flex-direction:column}.teacher-nav{flex-direction:row;min-width:auto;overflow-x:auto}.nav-btn{white-space:nowrap}}.name-entry-container{align-items:center;background:var(--background);display:flex;justify-content:center;min-height:100vh;padding:20px}.name-entry-content{max-width:600px;text-align:center;width:100%}.badge{margin-bottom:50px}.name-entry-title{color:var(--text-primary);font-size:3rem;font-weight:700;margin-bottom:20px}.name-entry-description{color:var(--text-secondary);font-size:1.2rem;line-height:1.6;margin-bottom:50px;margin-left:auto;margin-right:auto;max-width:500px}.name-entry-description strong{color:var(--text-primary);font-weight:600}.name-form{display:flex;flex-direction:column;gap:30px}.form-group{text-align:left}.form-label{display:block;font-weight:600;margin-bottom:12px}.form-label,.name-input{color:var(--text-primary);font-size:1.1rem}.name-input{background:var(--surface);border:2px solid var(--border-color);border-radius:12px;padding:20px 25px;position:relative;transition:all .3s ease;width:100%}.name-input:focus{border-color:var(--primary-purple);box-shadow:0 0 0 3px #7765da1a;outline:none}.name-input::placeholder{color:var(--text-secondary)}.input-suggestions{background:var(--surface);border:1px solid var(--border-color);border-radius:0 0 12px 12px;border-top:none;box-shadow:0 4px 15px var(--shadow);left:0;position:absolute;right:0;top:100%;z-index:10}.suggestion-item{background:linear-gradient(135deg,#27ae60,#2ecc71);border-radius:8px;color:var(--text-primary);color:#fff;cursor:pointer;font-weight:500;margin:10px;padding:12px 25px;transition:all .2s ease}.suggestion-item:hover{background:linear-gradient(135deg,#229954,#28b463)}.continue-btn{font-size:1.2rem;font-weight:600;margin-top:20px;padding:20px;width:100%}@media (max-width:768px){.name-entry-title{font-size:2.2rem}.name-entry-description{font-size:1.1rem}}.question-view-container{align-items:center;background:var(--background);display:flex;justify-content:center;min-height:100vh;padding:20px}.question-content{max-width:700px;width:100%}.question-info{align-items:center;display:flex;justify-content:space-between;margin-bottom:25px}.timer{color:#e74c3c}.timer.normal{color:#27ae60}.timer.warning{color:#f39c12}.options-container{background:var(--surface);border:1px solid var(--border-color);border-radius:0 0 12px 12px;border-top:none;box-shadow:0 8px 30px var(--shadow);padding:30px}.option-item{align-items:center;background:var(--option-bg);border:2px solid #0000;border-radius:12px;cursor:pointer;display:flex;gap:15px;margin-bottom:15px;padding:18px 25px;transition:all .3s ease}.option-item:last-child{margin-bottom:0}.option-item:hover:not(.disabled){box-shadow:0 4px 15px #7765da33}.option-item.selected,.option-item:hover:not(.disabled){border-color:var(--primary-purple);transform:translateY(-2px)}.option-item.selected{background:linear-gradient(135deg,var(--primary-purple) 0,var(--secondary-purple) 100%);box-shadow:0 6px 20px #7765da66;color:#fff}.option-item.disabled{cursor:not-allowed;opacity:.6}.option-number{background:var(--primary-purple)}.option-item.selected .option-number{background:#fff;color:var(--primary-purple)}.option-text{flex:1 1}.submit-section{margin-top:40px;text-align:center}.submit-btn{font-size:18px;font-weight:600;min-width:200px;padding:18px 40px}.submitted-message{background:var(--surface);border-radius:16px;box-shadow:0 8px 25px var(--shadow);margin-top:30px;padding:40px 30px;text-align:center}.success-icon{align-items:center;animation:bounceIn .6s ease;background:linear-gradient(135deg,#27ae60,#2ecc71);border-radius:50%;color:#fff;display:flex;font-size:2.5rem;font-weight:700;height:80px;justify-content:center;margin:0 auto 20px;width:80px}@keyframes bounceIn{0%{transform:scale(0)}50%{transform:scale(1.1)}to{transform:scale(1)}}.submitted-message h3{color:var(--text-primary);font-size:1.4rem;font-weight:600;margin-bottom:10px}.submitted-message p{color:var(--text-secondary);font-size:1rem}@media (max-width:768px){.question-view-container{padding:15px}.question-content{max-width:100%}.question-info{flex-direction:column;gap:15px;text-align:center}}.results-view-container{align-items:center;background:var(--background);display:flex;justify-content:center;min-height:100vh;padding:20px;position:relative}.results-content{max-width:700px;width:100%}.results-info{justify-content:space-between;margin-bottom:25px}.results-info,.timer.completed{align-items:center;display:flex}.timer.completed{color:#27ae60;font-size:18px;font-weight:600;gap:8px}.question-box{border-radius:12px 12px 0 0;margin-bottom:0;padding:25px 30px}.results-container{background:var(--surface);border:1px solid var(--border-color);border-radius:0 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