:root{--primary-blue:#0066cc;--primary-green:#00b347;--primary-white:#ffffff;--light-gray:#f8f9fa;--border-gray:#e0e0e0;--text-dark:#333333;--text-light:#666666;--shadow-sm:0 1px 3px rgba(0,0,0,0.1);--shadow-md:0 4px 8px rgba(0,0,0,0.12);--shadow-lg:0 8px 16px rgba(0,0,0,0.15);--transition:all 0.3s ease;--nav-height:60px}*{margin:0;padding:0;box-sizing:border-box}html{scroll-behavior:smooth}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;color:var(--text-dark);background-color:var(--primary-white);line-height:1.6;padding-top:var(--nav-height)}.top-nav{position:fixed;top:0;left:0;right:0;height:var(--nav-height);background:var(--primary-white);box-shadow:var(--shadow-md);z-index:1000;transition:var(--transition)}.nav-container{max-width:1400px;margin:0 auto;height:100%;justify-content:space-between;padding:0 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flash{0%{background:#000}50%{background:#fff}to{background:#000}}.morse-chart-section{padding:60px 20px;background:var(--primary-white);border-top:3px solid var(--primary-blue)}.section-title{font-size:2rem;text-align:center;margin-bottom:50px;font-weight:700;position:relative;padding-bottom:20px}.section-title:after{content:"";position:absolute;bottom:0;left:50%;transform:translateX(-50%);width:60px;height:4px;background:linear-gradient(90deg,var(--primary-blue),var(--primary-green));border-radius:2px}.chart-container{max-width:1200px;margin:0 auto 60px;display:grid;grid-template-columns:repeat(auto-fit,minmax(350px,1fr));gap:30px}.chart-category{background:var(--light-gray);border-radius:12px;padding:30px;border-left:5px solid 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h3{font-size:1.5rem;color:var(--text-dark);margin-bottom:30px;font-weight:600}.signals-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:20px}.signal-card{background:var(--light-gray);border-radius:8px;padding:25px;text-align:center;border:2px solid var(--border-gray);transition:var(--transition)}.signal-card:hover{border-color:var(--primary-green);box-shadow:var(--shadow-md);transform:translateY(-3px)}.signal-card h4{color:var(--text-dark);margin-bottom:12px}.signal-card h4,.signal-code{font-size:1.1rem;font-weight:600}.signal-code{font-family:Monaco,Courier New,monospace;color:var(--primary-blue);letter-spacing:2px;margin-bottom:10px}.signal-meaning{font-size:.9rem;color:var(--text-light);line-height:1.5}.info-section{padding:60px 20px;background:linear-gradient(135deg,rgba(0,102,204,.05),rgba(0,179,71,.05));border-top:3px solid var(--primary-green)}.info-grid{max-width:1200px;margin:0 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var(--primary-blue);border-radius:50%;display:flex;align-items:center;justify-content:center;font-weight:700;color:var(--primary-blue);margin-bottom:10px;transition:var(--transition)}.path-step:hover .step-icon{background:var(--primary-blue);color:white;transform:scale(1.1);box-shadow:0 5px 20px rgba(0,102,204,.4)}.path-step .step-label{font-size:.85rem;color:var(--text-light);text-align:center}.lessons-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(350px,1fr));gap:30px;margin-bottom:50px}.lesson-card{background:var(--primary-white);border-radius:16px;box-shadow:var(--shadow-md);overflow:hidden;transition:var(--transition);position:relative;display:flex;flex-direction:column}.lesson-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-lg)}.lesson-card-link{text-decoration:none;color:inherit;display:flex;flex-direction:column;flex:1}.lesson-card .lesson-header{padding:25px;background:linear-gradient(135deg,var(--primary-blue),var(--primary-green));color:white}.lesson-card .lesson-number{font-size:.9rem;opacity:.9;margin-bottom:5px}.lesson-card .lesson-title{font-size:1.4rem;font-weight:700;margin:0}.lesson-content{padding:25px;flex:1;display:flex;flex-direction:column}.lesson-description{color:var(--text-light);line-height:1.7;margin-bottom:20px}.lesson-characters{margin-bottom:20px;flex:1}.lesson-characters h4{font-size:.95rem;color:var(--text-dark);margin-bottom:12px}.character-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(70px,1fr));gap:10px}.character-item{background:var(--light-gray);border-radius:8px;padding:10px;text-align:center;transition:var(--transition)}.character-item:hover{background:linear-gradient(135deg,rgba(0,102,204,.1),rgba(0,179,71,.1));transform:scale(1.05)}.character-item .char{font-size:1.3rem;font-weight:700;color:var(--primary-blue);display:block}.character-item .code{font-family:Courier New,monospace;font-size:.9rem;color:var(--text-light)}.start-lesson-btn{display:inline-flex;align-items:center;gap:8px;padding:12px 24px;background:linear-gradient(135deg,var(--primary-blue),var(--primary-green));color:white;border:none;border-radius:8px;font-weight:600;font-size:1rem;cursor:pointer;margin-top:auto;transition:var(--transition);align-self:flex-start}.start-lesson-btn:hover{transform:translateY(-2px);box-shadow:0 4px 15px rgba(0,102,204,.3)}.practice-section{background:var(--light-gray);border-radius:20px;padding:40px;margin-bottom:50px;text-align:center}.practice-section h2{font-size:1.8rem;margin-bottom:15px;color:var(--text-dark)}.practice-section p{color:var(--text-light);max-width:600px;margin:0 auto 25px;line-height:1.7}.practice-btn{gap:10px;padding:15px 35px;background:linear-gradient(135deg,var(--primary-blue),var(--primary-green));color:white;text-decoration:none;transition:var(--transition)}.practice-btn:hover{transform:translateY(-3px);box-shadow:var(--shadow-lg)}.seo-tutorial-content{background:var(--primary-white);border-radius:16px;padding:40px;margin-bottom:50px;box-shadow:var(--shadow-sm)}.seo-tutorial-content h2{font-size:1.8rem;color:var(--text-dark);margin-bottom:25px;text-align:center}.seo-grid{grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:30px}.seo-block{padding:20px;border-left:4px solid var(--primary-green);background:var(--light-gray);border-radius:0 10px 10px 0}.seo-block h3{font-size:1.1rem;color:var(--text-dark);margin-bottom:12px}.seo-block p{font-size:.95rem;color:var(--text-light);margin:0}.tutorial-faq{margin-bottom:50px}.tutorial-faq h2{text-align:center;font-size:1.8rem;margin-bottom:30px;color:var(--text-dark)}.faq-grid{display:grid;gap:15px;max-width:900px;margin:0 auto}.back-link{display:inline-flex;align-items:center;gap:8px;margin-top:40px;padding:12px 24px;background:linear-gradient(135deg,var(--primary-blue),var(--primary-green));border-radius:8px;font-weight:600;transition:var(--transition)}.back-link,.back-link:hover{color:white;text-decoration:none}.back-link:hover{transform:translateY(-2px);box-shadow:var(--shadow-md)}@media (max-width:768px){.tutorial-hero h1{font-size:2rem}.tutorial-hero .subtitle{font-size:1.1rem}.hero-stats{gap:25px}.hero-stat .stat-number{font-size:2rem}.lessons-grid{grid-template-columns:1fr}.path-timeline{padding-bottom:20px}.practice-section{padding:30px 20px}.koch-trainer,.seo-tutorial-content{padding:25px}.koch-sequence-table .table-row{grid-template-columns:90px 1fr;gap:6px}.koch-sequence-table .table-row span:nth-child(3){grid-column:1/-1;text-align:left}.koch-history li{flex-direction:column;align-items:flex-start;gap:6px}.koch-history .attempt-char,.koch-history .attempt-guess,.koch-history .attempt-morse{width:auto;text-align:left}}.legal-page{max-width:900px;margin:0 auto;padding:60px 30px;background:var(--primary-white)}.legal-page h1{font-size:2.5rem;color:var(--primary-blue);margin-bottom:10px;background:linear-gradient(135deg,var(--primary-blue),var(--primary-green));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.legal-page .last-updated{color:var(--text-light);font-size:.95rem;margin-bottom:40px;padding-bottom:20px;border-bottom:2px solid var(--border-gray)}.legal-page .intro{font-size:1.1rem;color:var(--text-dark);line-height:1.8;margin-bottom:40px;padding:20px;background:var(--light-gray);border-radius:12px;border-left:4px solid var(--primary-blue)}.legal-page h2{font-size:1.4rem;color:var(--text-dark);margin:40px 0 20px;padding-bottom:10px;border-bottom:1px solid var(--border-gray);display:flex;align-items:center;gap:10px}.legal-page h2:before{content:"";width:8px;height:8px;background:var(--primary-green);border-radius:50%}.legal-page h3{font-size:1.1rem;color:var(--text-dark);margin:25px 0 15px}.legal-page p{margin-bottom:15px}.legal-page p,.legal-page ul{color:var(--text-light);line-height:1.8}.legal-page ul{margin:15px 0;padding-left:25px}.legal-page li{margin-bottom:10px;position:relative}.legal-page li::marker{color:var(--primary-green)}.legal-page a{color:var(--primary-blue);text-decoration:none;transition:var(--transition)}.legal-page a:hover{color:var(--primary-green);text-decoration:underline}.legal-page .contact-box{margin-top:40px;padding:25px;background:linear-gradient(135deg,rgba(0,102,204,.05),rgba(0,179,71,.05));border-radius:12px;border:1px solid var(--border-gray)}.legal-page .contact-box h3{margin-top:0;color:var(--primary-blue);font-size:1.2rem}.legal-page .contact-box a{font-weight:600}.legal-page .warning-box{padding:20px;background:#fff8e6;border-radius:12px;border-left:4px solid #ffc107;margin:20px 0}.legal-page .warning-box p{color:#856404;margin:0}@media (max-width:768px){.legal-page{padding:40px 20px}.legal-page h1{font-size:2rem}}.lesson-page{max-width:900px;margin:0 auto;padding:40px 20px}.breadcrumb{display:flex;align-items:center;gap:8px;margin-bottom:30px;font-size:.9rem;color:var(--text-light)}.breadcrumb a{color:var(--primary-blue);text-decoration:none}.breadcrumb a:hover{text-decoration:underline}.lesson-page>.lesson-header{text-align:center;margin-bottom:40px}.lesson-badge{display:inline-block;padding:6px 16px;background:linear-gradient(135deg,var(--primary-blue),var(--primary-green));color:white;border-radius:20px;font-size:.85rem;font-weight:600;margin-bottom:15px}.lesson-badge.final{background:linear-gradient(135deg,#e74c3c,#c0392b)}.lesson-page>.lesson-header h1{font-size:2.5rem;color:var(--text-dark);margin-bottom:15px}.lesson-page>.lesson-header .subtitle{font-size:1.15rem;color:var(--text-light);max-width:600px;margin:0 auto;line-height:1.7}.progress-section{background:var(--light-gray);border-radius:12px;padding:20px;margin-bottom:40px}.progress-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:10px}.progress-header span{font-weight:600;color:var(--text-dark)}.progress-bar{height:10px;background:var(--border-gray);border-radius:5px;overflow:hidden}.progress-fill{height:100%;background:linear-gradient(90deg,var(--primary-blue),var(--primary-green));border-radius:5px;transition:width .5s ease}.lesson-section{background:var(--primary-white);border-radius:16px;box-shadow:var(--shadow-md);padding:30px;margin-bottom:30px}.lesson-section h2{font-size:1.5rem;color:var(--text-dark);margin-bottom:20px;display:flex;align-items:center;gap:10px}.section-icon{width:32px;height:32px;background:linear-gradient(135deg,var(--primary-blue),var(--primary-green));border-radius:8px;display:flex;align-items:center;justify-content:center;color:white;flex-shrink:0}.character-cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:20px;margin-bottom:20px}.char-card{background:linear-gradient(135deg,rgba(0,102,204,.05),rgba(0,179,71,.05));border:2px solid var(--border-gray);border-radius:16px;padding:25px;text-align:center;cursor:pointer;transition:all .3s ease}.char-card:hover{border-color:var(--primary-blue);transform:translateY(-5px);box-shadow:var(--shadow-lg)}.char-card.playing{border-color:var(--primary-green);background:linear-gradient(135deg,rgba(0,179,71,.1),rgba(0,102,204,.1))}.char-letter{font-size:3rem;font-weight:700;color:var(--primary-blue);margin-bottom:8px}.char-morse{font-family:Courier New,monospace;font-size:1.5rem;color:var(--text-dark);margin-bottom:10px;letter-spacing:5px}.char-visual{display:flex;justify-content:center;gap:8px;margin-bottom:15px}.char-visual .morse-dot{width:16px;height:16px;background:var(--primary-blue);border-radius:50%}.char-visual .morse-dash{width:40px;height:16px;background:var(--primary-green);border-radius:8px}.char-description{font-size:.95rem;color:var(--text-light);line-height:1.6}.play-hint{display:flex;align-items:center;justify-content:center;gap:8px;margin-top:15px;font-size:.9rem;color:var(--primary-blue);font-weight:500}.explanation-box{background:var(--light-gray);border-radius:12px;padding:25px;margin-top:20px}.explanation-box h3{font-size:1.1rem;color:var(--text-dark);margin-bottom:12px}.explanation-box p{color:var(--text-light);line-height:1.7;margin-bottom:10px}.explanation-box p:last-child{margin-bottom:0}.sos-highlight{background:linear-gradient(135deg,rgba(231,76,60,.1),rgba(231,76,60,.05));border:2px solid #e74c3c;border-radius:12px;padding:20px;margin-top:20px;text-align:center}.sos-highlight h3{color:#e74c3c;margin-bottom:10px}.sos-code{font-family:Courier New,monospace;font-size:2rem;color:#e74c3c;letter-spacing:5px;margin:15px 0}.sos-btn{padding:12px 25px;background:#e74c3c;color:white;border:none;border-radius:8px;font-weight:600;cursor:pointer;transition:all .3s ease;display:inline-flex;align-items:center;gap:8px}.sos-btn:hover{background:#c0392b;transform:translateY(-2px)}.celebration-box{background:linear-gradient(135deg,rgba(0,102,204,.1),rgba(0,179,71,.1));border:2px solid var(--primary-green);border-radius:12px;padding:25px;margin-top:20px;text-align:center}.celebration-box h3{color:var(--primary-green);margin-bottom:12px}.celebration-box p{color:var(--text-light);line-height:1.7}.practice-area{text-align:center}.practice-prompt{font-size:1.2rem;color:var(--text-dark);margin-bottom:25px}.practice-buttons{display:flex;justify-content:center;gap:15px;flex-wrap:wrap;margin-bottom:25px}.practice-btn{padding:15px 30px;font-size:1.1rem;font-weight:600;border:none;border-radius:10px;cursor:pointer;transition:all .3s ease;display:inline-flex;align-items:center}.btn-play{background:linear-gradient(135deg,var(--primary-blue),var(--primary-green));color:white}.btn-play:hover{transform:translateY(-2px);box-shadow:var(--shadow-md)}.btn-next{background:var(--light-gray);color:var(--text-dark);border:2px solid var(--border-gray)}.btn-next:hover{border-color:var(--primary-blue);background:white}.quiz-area{text-align:center}.quiz-question{font-size:1.3rem;color:var(--text-dark);margin-bottom:30px}.quiz-options{display:grid;grid-template-columns:repeat(2,1fr);gap:15px;max-width:400px;margin:0 auto 30px}.quiz-option{padding:20px;font-size:1.5rem;font-weight:700;background:var(--light-gray);border:3px solid var(--border-gray);border-radius:12px;cursor:pointer;transition:all .3s ease;color:var(--text-dark)}.quiz-option:hover:not(:disabled){border-color:var(--primary-blue);background:white}.quiz-option.correct{border-color:var(--primary-green);background:rgba(0,179,71,.1);color:var(--primary-green)}.quiz-option.incorrect{border-color:#e74c3c;background:rgba(231,76,60,.1);color:#e74c3c}.quiz-option:disabled{cursor:default}.quiz-feedback{font-size:1.2rem;font-weight:600;margin-bottom:20px;min-height:30px}.quiz-feedback.correct{color:var(--primary-green)}.quiz-feedback.incorrect{color:#e74c3c}.quiz-score{font-size:1rem;color:var(--text-light)}.typing-area{text-align:center}.typing-prompt{font-size:1.2rem;color:var(--text-dark);margin-bottom:20px}.typing-target{font-size:3rem;font-weight:700;color:var(--primary-blue);margin-bottom:25px}.typing-input{width:100%;max-width:400px;padding:15px 20px;font-size:1.5rem;font-family:Courier New,monospace;text-align:center;border:3px solid var(--border-gray);border-radius:12px;outline:none;transition:border-color .3s ease}.typing-input:focus{border-color:var(--primary-blue)}.typing-input.correct{border-color:var(--primary-green);background:rgba(0,179,71,.05)}.typing-input.incorrect{border-color:#e74c3c;background:rgba(231,76,60,.05)}.typing-hint{margin-top:15px;font-size:.95rem;color:var(--text-light)}.lesson-nav{justify-content:space-between;margin-top:40px;padding-top:30px;border-top:2px solid var(--border-gray)}.lesson-nav,.nav-btn{display:flex;align-items:center}.nav-btn{gap:10px;padding:15px 25px;background:var(--light-gray);color:var(--text-dark);text-decoration:none;border-radius:10px;font-weight:600;transition:all .3s ease}.nav-btn:hover{background:linear-gradient(135deg,var(--primary-blue),var(--primary-green));color:white}.nav-btn.disabled{opacity:.5;pointer-events:none}.flash-indicator{width:80px;height:80px;background:var(--border-gray);border-radius:50%;margin:20px auto;transition:background .1s ease}.flash-indicator.active{background:var(--primary-green);box-shadow:0 0 30px rgba(0,179,71,.6)}.flash-indicator.emergency{background:#e74c3c;box-shadow:0 0 30px rgba(231,76,60,.6)}.character-cards.lesson8{grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:15px}.character-cards.lesson8 .char-card{padding:20px}.character-cards.lesson8 .char-letter{font-size:2.5rem}.character-cards.lesson8 .char-morse{font-size:1rem;letter-spacing:3px}.character-cards.lesson8 .char-visual{gap:5px;flex-wrap:wrap}.character-cards.lesson8 .morse-dot{width:12px;height:12px}.character-cards.lesson8 .morse-dash{width:28px;height:12px;border-radius:6px}.character-cards.lesson8 .char-description{font-size:.8rem;margin-top:8px}.character-cards.lesson8 .play-hint{font-size:.75rem;margin-top:8px}.char-card.emergency{background:linear-gradient(135deg,rgba(231,76,60,.1),rgba(192,57,43,.1));border-color:#e74c3c}.char-card.emergency:hover{border-color:#c0392b}.char-card.emergency .char-letter,.char-letter.emergency{color:#e74c3c}.char-card.emergency .morse-dot,.morse-dot.emergency{background:#e74c3c}.char-card.emergency .morse-dash,.morse-dash.emergency{background:#c0392b}.section-icon.emergency{background:linear-gradient(135deg,#e74c3c,#c0392b)}.sos-demo{text-align:center;padding:30px}.sos-text{font-size:4rem;font-weight:700;color:#e74c3c;letter-spacing:10px}.sos-morse{font-family:Courier New,monospace;font-size:1.5rem;margin:15px 0;color:var(--text-dark)}.emergency-box{background:linear-gradient(135deg,rgba(231,76,60,.1),rgba(192,57,43,.1));border:2px solid #e74c3c;border-radius:12px;padding:25px;margin-top:20px}.emergency-box h3{color:#e74c3c;margin-bottom:12px}.emergency-box p{color:var(--text-light);line-height:1.7;margin-bottom:10px}.practice-btn.emergency{background:linear-gradient(135deg,#e74c3c,#c0392b)}.practice-btn.emergency:hover{transform:translateY(-2px);box-shadow:0 4px 15px rgba(231,76,60,.4)}.completion-section{text-align:center;background:linear-gradient(135deg,rgba(0,102,204,.1),rgba(0,179,71,.1));border:2px solid var(--primary-green);border-radius:16px;padding:40px;margin-top:30px}.completion-section h2{color:var(--primary-green);margin-bottom:15px}.completion-stats{display:flex;justify-content:center;gap:30px;flex-wrap:wrap;margin-bottom:20px}.completion-stat{text-align:center}.completion-stat strong{display:block;font-size:2rem;color:var(--primary-blue)}.completion-stat.emergency strong{color:#e74c3c}.completion-stat span{font-size:.9rem;color:var(--text-light)}@media (max-width:768px){.lesson-page>.lesson-header h1{font-size:1.8rem}.char-letter{font-size:2.5rem}.char-morse{font-size:1.2rem}.character-cards{grid-template-columns:repeat(2,1fr)}.quiz-options{grid-template-columns:1fr 1fr}.lesson-nav{flex-direction:column;gap:15px}.nav-btn{width:100%;justify-content:center}.typing-target{font-size:2rem}.typing-input{font-size:1.2rem}.sos-text{font-size:2.5rem}.legal-page h2{font-size:1.2rem}}.games-page{min-height:100vh;background:linear-gradient(135deg,#667eea,#764ba2)}.games-hero{position:relative;padding:60px 20px 80px;text-align:center;color:white;overflow:hidden}.games-hero-bg{position:absolute;inset:0;overflow:hidden}.floating-morse{position:absolute;width:100%;height:100%;opacity:.1}.floating-morse span{position:absolute;font-family:Monaco,Courier New,monospace;font-size:1.5rem;animation:floatMorse 15s linear infinite}.floating-morse span:first-child{top:10%;left:10%;animation-delay:0s}.floating-morse span:nth-child(2){top:30%;left:80%;animation-delay:2s}.floating-morse span:nth-child(3){top:60%;left:20%;animation-delay:4s}.floating-morse span:nth-child(4){top:80%;left:70%;animation-delay:6s}.floating-morse span:nth-child(5){top:50%;left:50%;animation-delay:8s}@keyframes floatMorse{0%,to{transform:translateY(0) rotate(0deg);opacity:.1}50%{transform:translateY(-20px) rotate(5deg);opacity:.3}}.games-hero h1{font-size:3rem;font-weight:800;margin-bottom:16px;text-shadow:0 4px 20px rgba(0,0,0,.3)}.games-hero .subtitle{font-size:1.2rem;opacity:.9;max-width:600px;margin:0 auto 24px;line-height:1.6}.games-hero .morse-display{font-family:Monaco,Courier New,monospace;font-size:2rem;letter-spacing:8px;opacity:.7}.games-grid-section{padding:40px 20px;background:var(--light-gray)}.games-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(320px,1fr));gap:30px;max-width:1200px;margin:0 auto}.game-card{position:relative;border-radius:24px;overflow:hidden;cursor:pointer;transition:all .4s cubic-bezier(.4,0,.2,1);text-decoration:none;color:white;min-height:400px;display:flex;flex-direction:column}.game-card:hover{transform:translateY(-8px) scale(1.02);box-shadow:0 20px 40px rgba(0,0,0,.3)}.game-card-bg{position:absolute;inset:0;z-index:0}.game-card-content{position:relative;z-index:1;padding:32px;display:flex;flex-direction:column;flex:1}.game-icon{font-size:4rem;margin-bottom:16px;filter:drop-shadow(0 4px 8px rgba(0,0,0,.3))}.game-title{font-size:1.8rem;font-weight:700;margin-bottom:12px}.game-description{font-size:1rem;opacity:.9;line-height:1.6;flex:1}.game-difficulty{display:flex;align-items:center;gap:8px;margin:16px 0;padding:8px 16px;background:rgba(255,255,255,.15);border-radius:20px;width:-moz-fit-content;width:fit-content}.difficulty-label{font-size:.85rem;opacity:.8}.difficulty-value{font-size:.9rem}.game-play-btn{display:flex;align-items:center;gap:8px;padding:12px 24px;background:rgba(255,255,255,.2);border-radius:30px;font-weight:600;transition:all .3s ease;width:-moz-fit-content;width:fit-content}.game-card:hover .game-play-btn{background:rgba(255,255,255,.3);transform:translateX(8px)}.game-play-btn svg{width:20px;height:20px}.game-card-decoration{position:absolute;bottom:0;left:0;right:0;padding:16px;background:rgba(0,0,0,.2);text-align:center}.morse-code-line{font-family:Monaco,Courier New,monospace;letter-spacing:4px;opacity:.6;font-size:.9rem}.how-to-play-section{padding:80px 20px;background:linear-gradient(180deg,#f8f9fa,#ffffff)}.how-to-play-container{max-width:1200px;margin:0 auto}.how-to-play-section h2{font-size:2.5rem;color:var(--text-dark);margin-bottom:60px;text-align:center;position:relative}.how-to-play-section h2:after{content:"";position:absolute;bottom:-16px;left:50%;transform:translateX(-50%);width:80px;height:4px;background:linear-gradient(90deg,#667eea,#764ba2);border-radius:2px}.how-to-play-steps{display:flex;justify-content:center;align-items:flex-start;gap:20px;flex-wrap:wrap}.play-step{display:flex;flex-direction:column;align-items:center;max-width:280px;text-align:center;padding:30px 20px;background:white;border-radius:20px;box-shadow:0 10px 40px 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h2{font-size:2.2rem;margin-bottom:50px}.benefits-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:30px}.benefit-card{background:rgba(255,255,255,.1);backdrop-filter:blur(10px);border-radius:16px;padding:30px;border:1px solid rgba(255,255,255,.2);transition:all .3s ease}.benefit-card:hover{background:rgba(255,255,255,.15);transform:translateY(-4px)}.benefit-card .benefit-icon{font-size:2.5rem;margin-bottom:16px}.benefit-card h3{font-size:1.2rem;margin-bottom:12px}.benefit-card p{font-size:.95rem;line-height:1.6;opacity:.9}.games-faq-section{padding:80px 20px;background:var(--light-gray)}.faq-container{max-width:900px;margin:0 auto}.faq-container h2{font-size:2.2rem;color:var(--text-dark);margin-bottom:50px;text-align:center}.faq-list{display:flex;flex-direction:column;gap:20px}.faq-item{background:white;border-radius:16px;padding:28px 32px;box-shadow:0 4px 20px rgba(0,0,0,.05)}.faq-item h3{font-size:1.1rem;color:var(--text-dark);margin-bottom:12px;display:flex;align-items:center;gap:12px}.faq-item h3:before{content:"Q";display:inline-flex;align-items:center;justify-content:center;width:28px;height:28px;background:linear-gradient(135deg,#667eea,#764ba2);color:white;border-radius:50%;font-size:.85rem;font-weight:700;flex-shrink:0}.faq-item p{font-size:.95rem;color:var(--text-light);line-height:1.7;padding-left:40px}.games-cta-section{padding:80px 20px;background:linear-gradient(135deg,#1a1a2e,#16213e);color:white;text-align:center}.cta-container{max-width:700px;margin:0 auto}.cta-container h2{font-size:2.2rem;margin-bottom:16px}.cta-container p{font-size:1.1rem;opacity:.9;margin-bottom:40px;line-height:1.6}.cta-buttons{display:flex;justify-content:center;gap:16px;flex-wrap:wrap}.cta-btn{padding:16px 36px;border-radius:30px;font-size:1rem;font-weight:600;text-decoration:none;transition:all .3s ease}.cta-btn.primary{background:linear-gradient(135deg,#667eea,#764ba2);color:white}.cta-btn.primary:hover{transform:translateY(-3px);box-shadow:0 10px 30px rgba(102,126,234,.4)}.cta-btn.secondary{background:transparent;color:white;border:2px solid rgba(255,255,255,.5)}.cta-btn.secondary:hover{background:rgba(255,255,255,.1);border-color:rgba(255,255,255,.8)}@media (max-width:768px){.how-to-play-section h2{font-size:1.8rem}.step-connector{display:none}.play-step{max-width:100%}.benefits-container h2,.cta-container h2,.faq-container h2,.intro-container h2{font-size:1.8rem}.cta-buttons{flex-direction:column;align-items:center}.cta-btn{width:100%;max-width:300px}}.controls-guide{padding:60px 20px;background:var(--light-gray);text-align:center}.controls-guide h2{font-size:2rem;color:var(--text-dark);margin-bottom:40px}.controls-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:20px;max-width:800px;margin:0 auto}.control-item{background:white;padding:24px;border-radius:16px;box-shadow:var(--shadow-sm)}.control-key{font-family:Monaco,Courier New,monospace;font-size:2rem;color:var(--primary-blue);margin-bottom:8px}.control-desc{font-size:.9rem;color:var(--text-light)}.game-page{min-height:100vh;position:relative;overflow:hidden}.game-header{position:fixed;top:var(--nav-height);left:0;right:0;padding:16px 20px;justify-content:space-between;z-index:100;background:rgba(0,0,0,.3);backdrop-filter:blur(10px)}.back-btn,.game-header{display:flex;align-items:center}.back-btn{gap:8px;color:white;text-decoration:none;padding:10px 20px;background:rgba(255,255,255,.15);border-radius:25px;font-weight:500;transition:all .3s ease}.back-btn:hover{background:rgba(255,255,255,.25)}.back-btn svg{width:20px;height:20px}.game-stats{display:flex;gap:24px}.stat{display:flex;flex-direction:column;align-items:center;color:white}.stat-label{font-size:.75rem;opacity:.7;text-transform:uppercase}.stat-value{font-size:1.5rem;font-weight:700}.game-container{position:relative;z-index:10;padding:100px 20px 40px;max-width:800px;margin:0 auto;min-height:calc(100vh - var(--nav-height));display:flex;flex-direction:column;gap:24px}.game-title-area{text-align:center;color:white;padding:20px}.game-icon-large{font-size:5rem;margin-bottom:16px;filter:drop-shadow(0 8px 16px rgba(0,0,0,.3));animation:bounce 2s ease-in-out infinite}.game-title-area h1{font-size:2.5rem;font-weight:800;margin-bottom:12px;text-shadow:0 4px 20px rgba(0,0,0,.3)}.game-subtitle{font-size:1.1rem;opacity:.9;max-width:500px;margin:0 auto;line-height:1.5}.game-start-panel{background:rgba(255,255,255,.95);border-radius:24px;padding:40px;text-align:center;box-shadow:0 20px 60px rgba(0,0,0,.3)}.difficulty-select h3{color:var(--text-dark);margin-bottom:20px;font-size:1.3rem}.difficulty-buttons{display:flex;justify-content:center;gap:16px;margin-bottom:32px;flex-wrap:wrap}.difficulty-btn{padding:16px 24px;border:2px solid var(--border-gray);background:white;border-radius:16px;cursor:pointer;transition:all .3s ease;display:flex;flex-direction:column;align-items:center;gap:8px;min-width:120px}.difficulty-btn:hover{border-color:var(--primary-blue);transform:translateY(-2px)}.difficulty-btn.active{border-color:var(--primary-blue);background:linear-gradient(135deg,rgba(102,126,234,.1),rgba(118,75,162,.1))}.diff-icon{font-size:1.5rem}.diff-label{font-weight:600;color:var(--text-dark)}.start-game-btn{display:inline-flex;align-items:center;gap:12px;padding:18px 40px;background:linear-gradient(135deg,#667eea,#764ba2);color:white;border:none;border-radius:30px;font-size:1.2rem;font-weight:700;cursor:pointer;transition:all .3s ease;box-shadow:0 8px 24px 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24px;background:var(--light-gray);border:none;border-radius:20px;color:var(--text-light);font-size:.9rem;cursor:pointer;transition:all .3s ease}.hint-btn:hover{background:var(--border-gray)}.hint-morse{margin-top:16px;font-family:Monaco,Courier New,monospace;font-size:1.5rem;letter-spacing:6px;color:var(--primary-blue);padding:16px;background:rgba(102,126,234,.1);border-radius:12px}.morse-input-area{background:rgba(0,0,0,.6);border-radius:20px;padding:24px;text-align:center;outline:none}.morse-input-area:focus{box-shadow:0 0 0 3px rgba(255,255,255,.3)}.input-label{font-size:.85rem;color:rgba(255,255,255,.7);margin-bottom:12px;text-transform:uppercase;letter-spacing:2px}.morse-input-display{font-family:Monaco,Courier New,monospace;font-size:2rem;color:white;min-height:48px;letter-spacing:6px;position:relative;display:inline-block}.morse-input-display .placeholder{color:rgba(255,255,255,.3);font-size:1rem;letter-spacing:normal}.cursor{display:inline-block;width:2px;height:32px;background:white;margin-left:4px;animation:blink 1s infinite;vertical-align:middle}@keyframes blink{0%,50%{opacity:1}51%,to{opacity:0}}.morse-controls{display:flex;justify-content:center;gap:16px;flex-wrap:wrap}.morse-btn{display:flex;flex-direction:column;align-items:center;gap:8px;padding:20px 28px;background:rgba(255,255,255,.9);border:none;border-radius:20px;cursor:pointer;transition:all .2s ease;box-shadow:0 4px 16px rgba(0,0,0,.2)}.morse-btn:hover{transform:translateY(-2px);box-shadow:0 8px 24px rgba(0,0,0,.3)}.morse-btn:active{transform:translateY(0)}.btn-symbol{font-size:2rem;font-weight:700;color:var(--text-dark)}.btn-label{font-size:.75rem;color:var(--text-light);text-transform:uppercase}.dot-btn{background:linear-gradient(135deg,#00b09b,#96c93d)}.dot-btn .btn-symbol{color:white}.dot-btn 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p{font-size:.95rem;line-height:1.6;color:var(--text-dark)}.wireless-applications{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:24px;margin-top:24px}.application-card{background:var(--primary-white);padding:24px;border-radius:16px;box-shadow:var(--shadow-md);border-top:4px solid var(--primary-green)}.application-card h3{font-size:1.1rem;font-weight:700;color:var(--primary-blue);margin-bottom:12px}.application-card p{font-size:.95rem;line-height:1.6;color:var(--text-dark)}.famous-messages{background:linear-gradient(145deg,var(--light-gray),var(--primary-white));padding:40px;border-radius:20px}.messages-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:24px;margin-top:24px}.message-card{background:var(--primary-white);padding:28px;border-radius:16px;box-shadow:var(--shadow-md)}.message-card h3{font-size:1.1rem;font-weight:700;color:var(--primary-blue);margin-bottom:16px}.famous-quote{font-size:1.4rem;font-style:italic;color:var(--primary-green);font-weight:600;margin:16px 0;padding:16px;background:linear-gradient(135deg,rgba(0,102,204,.05),rgba(0,179,71,.05));border-radius:12px;border-left:4px solid var(--primary-green)}.message-context{font-size:.95rem;line-height:1.6;color:var(--text-light)}.evolution-comparison{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:24px;margin-top:24px}.code-version{background:var(--primary-white);padding:24px;border-radius:16px;box-shadow:var(--shadow-md)}.code-version h3{font-size:1.1rem;font-weight:700;color:var(--primary-blue);margin-bottom:12px}.code-version 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