:root{--font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;--bg-color: #f5f5f7;--card-bg: #ffffff;--primary-color: #007aff;--text-color: #1d1d1f;--text-secondary: #86868b;--border-radius: 12px;--shadow: 0 4px 12px rgba(0, 0, 0, .08);--correct-color: #34c759;--wrong-color: #ff3b30}body{margin:0;font-family:var(--font-family);background-color:var(--bg-color);color:var(--text-color);-webkit-font-smoothing:antialiased}*,*:before,*:after{box-sizing:border-box}.no-select{-webkit-user-select:none;-moz-user-select:none;-ms-user-select:none;user-select:none}.app-container{display:flex;flex-direction:column;min-height:100vh;max-width:800px;margin:0 auto;padding:20px 20px 0}.app-header{display:flex;justify-content:space-between;align-items:center;padding:10px 0;margin-bottom:20px;position:relative;width:100%}.logo{font-size:1.5rem;font-weight:600;margin:0}.language-selector{display:flex;gap:8px;background:#7676801f;padding:4px;border-radius:8px}.language-selector button{background:transparent;border:none;padding:6px 12px;font-size:.9rem;cursor:pointer;border-radius:6px;color:var(--text-color);transition:all .2s ease}.language-selector button:disabled{opacity:.5;cursor:not-allowed;pointer-events:none}.language-selector button.active{background:#fff;box-shadow:0 2px 4px #0000001a;font-weight:500}.quiz-container{flex:1;display:flex;flex-direction:column;padding-bottom:40px}.progress-bar{text-align:center;color:var(--text-secondary);margin-bottom:16px;font-size:.9rem;font-weight:500}.question-card{background:var(--card-bg);border-radius:var(--border-radius);padding:32px;box-shadow:var(--shadow);transition:transform .2s}.image-container{width:100%;margin-bottom:24px;border-radius:8px;overflow:hidden;display:flex;justify-content:center;background:#f0f0f0}.image-container img{max-width:100%;max-height:300px;display:block}.question-text{font-size:1.25rem;line-height:1.5;margin-bottom:32px;font-weight:600}.answers-grid{display:grid;grid-template-columns:1fr;gap:12px}.answer-btn{padding:16px;text-align:left;background:#f9f9f9;border:1px solid transparent;border-radius:10px;font-size:1rem;cursor:pointer;transition:all .2s}.answer-btn:hover:not(:disabled){background:#eef5ff}.answer-btn.correct{background-color:#34c7591a;border-color:var(--correct-color);color:#006400;pointer-events:none;font-weight:600}.answer-btn.wrong{background-color:#ff3b301a;border-color:var(--wrong-color);color:#8b0000;pointer-events:none}.explanation-section{margin-top:32px;padding-top:24px;border-top:1px solid #eaeaea;animation:fadeIn .3s ease-in-out}.explanation-section h3{margin-top:0;font-size:1.1rem;color:var(--text-secondary)}.explanation-section p{line-height:1.6;font-size:1rem}.next-btn{margin-top:20px;background:var(--primary-color);color:#fff;border:none;padding:12px 24px;font-size:1rem;border-radius:8px;cursor:pointer;width:100%;font-weight:500;transition:background .2s}.next-btn:hover{background:#06c}@keyframes fadeIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.loading-container,.error-container{height:100vh;display:flex;justify-content:center;align-items:center;font-size:1.2rem;color:var(--text-secondary)}.main-menu{display:flex;flex-direction:column;align-items:center;justify-content:center;height:80vh;gap:2rem;animation:fadeIn .5s ease-out}.menu-title{font-size:2.5rem;font-weight:700;color:var(--primary-color);margin-bottom:1rem}.menu-btn{background:var(--primary-color);color:#fff;border:none;padding:16px 32px;font-size:1.2rem;font-weight:600;border-radius:12px;cursor:pointer;transition:transform .2s,box-shadow .2s;box-shadow:0 4px 12px #007aff4d;width:100%;max-width:300px}.menu-btn:hover{transform:translateY(-2px);box-shadow:0 6px 16px #007aff66}.menu-btn:active{transform:translateY(0)}.exit-btn{background:#fff;border:1px solid transparent;color:var(--text-color);padding:8px 16px;border-radius:8px;cursor:pointer;font-weight:600;transition:all .2s;box-shadow:0 2px 5px #0000000d;display:flex;align-items:center;gap:8px}.exit-btn:hover{background:#fff;border-color:var(--wrong-color);box-shadow:0 4px 12px #ff3b3033}.header-controls{display:flex;align-items:center;gap:16px}.module-grid{display:grid;gap:20px;margin-bottom:2rem;width:100%;max-width:600px}.module-card{background:#fff;padding:24px;border-radius:16px;box-shadow:0 4px 6px #0000000d;cursor:pointer;transition:all .2s;border:2px solid transparent;display:flex;justify-content:space-between;align-items:center}.module-card:hover{transform:translateY(-2px);box-shadow:0 8px 12px #0000001a;border-color:var(--primary-color)}.module-info h3{margin:0 0 4px;font-size:1.2rem}.module-info p{margin:0;color:var(--text-secondary);font-size:.9rem}.nav-buttons{display:flex;justify-content:space-between;margin-top:24px;gap:16px}.nav-btn{padding:10px 20px;border-radius:8px;border:1px solid #ddd;background:#fff;color:var(--text-color);font-size:1rem;font-weight:500;cursor:pointer;transition:all .2s;display:flex;align-items:center;gap:8px}.nav-btn:hover:not(:disabled){background:#f5f5f7;border-color:#ccc}.nav-btn:disabled{opacity:.5;cursor:not-allowed}.nav-btn.primary{background:var(--primary-color);color:#fff;border:none}.nav-btn.primary:hover{background:#06c}.menu-content{width:100%;max-width:600px;display:flex;flex-direction:column;gap:32px;align-items:center}.settings-overlay{position:fixed;inset:0;background:#00000080;display:flex;justify-content:center;align-items:center;z-index:1000;animation:fadeIn .2s}.settings-modal{background:var(--card-bg);padding:24px;border-radius:16px;width:90%;max-width:320px;box-shadow:0 8px 32px #0003;display:flex;flex-direction:column;gap:16px}.settings-title{display:flex;justify-content:space-between;align-items:center;font-size:1.25rem;font-weight:600;margin-bottom:8px}.close-btn{background:none;border:none;font-size:1.5rem;color:var(--text-secondary);cursor:pointer;padding:4px}.custom-select-container{position:relative;width:100%}.custom-select-trigger{width:100%;padding:12px 16px;background:transparent;border:1px solid #ddd;border-radius:12px;display:flex;justify-content:space-between;align-items:center;cursor:pointer;color:var(--text-color);font-size:1rem;transition:all .2s;box-shadow:0 4px 6px #0000000d;background:#fff}.custom-select-trigger:hover{border-color:var(--primary-color);color:var(--primary-color);box-shadow:0 6px 12px #007aff26}.custom-select-options{position:absolute;top:calc(100% + 8px);left:0;right:0;background:var(--card-bg);border:1px solid #eaeaea;border-radius:12px;overflow:hidden;z-index:100;box-shadow:0 8px 24px #00000026}.custom-option{padding:12px 16px;cursor:pointer;transition:background .2s;color:var(--text-color);font-size:.95rem}.custom-option:hover{background:#007aff14;color:var(--primary-color)}.custom-option.selected{background:var(--primary-color);color:#fff}.settings-icon-btn{background:#7676801f;border:none;width:40px;height:40px;border-radius:50%;display:flex;align-items:center;justify-content:center;cursor:pointer;color:var(--text-color);transition:all .2s}.settings-icon-btn:hover{background:#76768033}.lang-option{width:100%;text-align:left;padding:12px;background:transparent;border:1px solid #ddd;border-radius:8px;cursor:pointer;font-size:1rem;transition:all .2s}.lang-option.active{background:var(--primary-color);color:#fff;border-color:var(--primary-color)}.lang-option:disabled{opacity:.5;cursor:not-allowed;pointer-events:none}.ticket-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;width:100%;max-width:600px;margin:0 auto;padding-bottom:40px}.ticket-item{background:#fff;color:var(--text-color);border:2px solid transparent;border-radius:16px;font-size:1.5rem;font-weight:600;cursor:pointer;transition:all .2s;box-shadow:0 4px 6px #0000000d;aspect-ratio:1;display:flex;align-items:center;justify-content:center}.ticket-item:hover{transform:translateY(-2px);box-shadow:0 8px 12px #0000001a;border-color:var(--primary-color);color:var(--primary-color)}.ticket-item:active{transform:translateY(0)}.feedback-form{width:100%;max-width:400px;display:flex;flex-direction:column;gap:16px}.form-group{display:flex;flex-direction:column;text-align:left;gap:6px}.form-group label{font-weight:500;color:var(--text-color);font-size:.9rem}.form-input,.form-textarea{padding:12px;border-radius:8px;border:1px solid #ddd;font-family:inherit;font-size:1rem;transition:border-color .2s;background:#fff;width:100%;box-sizing:border-box}.form-input:focus,.form-textarea:focus{outline:none;border-color:var(--primary-color);box-shadow:0 0 0 3px #007aff1a}.feedback-form .menu-btn{align-self:center;width:auto;min-width:200px}.save-btn{background:#fff;border:1px solid transparent;color:var(--text-color);padding:8px 16px;border-radius:8px;cursor:pointer;font-weight:600;transition:all .2s;box-shadow:0 2px 5px #0000000d;display:flex;align-items:center;justify-content:center;gap:8px;min-width:unset;width:auto;height:auto}.save-btn:hover{background:#fff;border-color:var(--primary-color);box-shadow:0 4px 12px #007aff33;color:var(--primary-color)}.save-btn.active{color:var(--primary-color);border-color:var(--primary-color);background:#007aff0d}.save-btn:active{transform:translateY(0)}.stats-chart-container{width:100%;max-width:600px;background:#fff;padding:24px;border-radius:16px;box-shadow:0 4px 6px #0000000d;margin-bottom:2rem;-webkit-tap-highlight-color:transparent;outline:none}.stats-chart-container h3{margin-top:0;margin-bottom:16px;font-size:1.2rem;font-weight:600;color:var(--text-color)}.stats-chart-container.empty{display:flex;justify-content:center;align-items:center;color:var(--text-secondary);height:160px}.recharts-wrapper,.recharts-surface,.recharts-layer{outline:none!important;border:none!important}.stats-chart-container *,.stats-chart-container *:focus,.stats-chart-container *:active,.recharts-wrapper *:focus{outline:none!important;box-shadow:none!important;-webkit-tap-highlight-color:transparent!important}.switch{position:relative;display:inline-block;width:50px;height:28px}.switch input{opacity:0;width:0;height:0}.slider{position:absolute;cursor:pointer;inset:0;background-color:#ccc;-webkit-transition:.4s;transition:.4s}.slider:before{position:absolute;content:"";height:24px;width:24px;left:2px;bottom:2px;background-color:#fff;-webkit-transition:.4s;transition:.4s;box-shadow:0 2px 4px #0003}input:checked+.slider{background-color:var(--primary-color)}input:focus+.slider{box-shadow:0 0 1px var(--primary-color)}input:checked+.slider:before{transform:translate(22px)}.slider.round{border-radius:34px}.slider.round:before{border-radius:50%}