.tvo-game{--bg-color:#f4f7f6;--card-bg:#fff;--text-color:#333;--brand-green:var(--wiu-green);--brand-red:var(--wiu-red);--brand-orange:var(--wiu-orange);--highlight-color:var(--brand-green);--border-radius:12px;--shadow:0 4px 6px #0000000d;color:var(--text-color);font-family:var(--font-roboto), sans-serif;flex-direction:column;align-items:center;display:flex}.tvo-container{flex-direction:column;align-items:center;width:100%;display:flex}.tvo-header{text-align:center;flex-direction:column;align-items:center;margin-bottom:2rem;display:flex}.tvo-logo{width:100%;max-width:380px;height:auto;margin-bottom:10px}.tvo-subtitle{color:#0f4c75;text-align:center;margin:0;font-size:1.04rem;font-weight:900}.tvo-level-bar{border-radius:var(--border-radius);width:100%;box-shadow:var(--shadow);box-sizing:border-box;background:#fff;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:15px;margin-bottom:1rem;padding:10px 15px;display:flex}.tvo-level-nav{align-items:center;gap:12px;display:flex}.tvo-level-text{color:#333;text-align:center;min-width:80px;font-size:1.1rem;font-weight:800}.tvo-mode-toggle{background:#f0f0f0;border-radius:20px;align-items:center;gap:8px;padding:6px 12px;display:flex}.tvo-toggle-label{text-align:center;color:#666;text-transform:uppercase;font-size:.85rem;font-weight:700;line-height:1.3}.tvo-options .tvo-toggle-label{text-transform:uppercase;color:var(--brand-red);text-align:center;font-size:1.2rem;font-weight:700;line-height:1.3}.tvo-switch{width:40px;height:22px;display:inline-block;position:relative}.tvo-switch input{opacity:0;width:0;height:0}.tvo-slider{cursor:pointer;background-color:#ccc;border-radius:34px;transition:all .4s;position:absolute;inset:0}.tvo-slider:before{content:"";background-color:#fff;border-radius:50%;width:16px;height:16px;transition:all .4s;position:absolute;bottom:3px;left:3px}input:checked+.tvo-slider{background-color:var(--brand-green)}input:checked+.tvo-slider:before{transform:translate(18px)}.tvo-streak{color:var(--brand-orange);background:#fff3e0;border-radius:15px;padding:6px 12px;font-size:.9rem;font-weight:800}.tvo-streak.mastered{color:var(--brand-green);background:#e8f8f0}.tvo-card{background:var(--card-bg);box-sizing:border-box;border-radius:20px;flex-direction:column;align-items:center;width:100%;padding:1rem;display:flex;position:relative;box-shadow:0 8px 25px #0000000d}.tvo-tut-title{text-align:center;color:var(--brand-green);margin-bottom:20px;font-size:1.8rem;font-weight:900}.tvo-tut-content{color:#444;text-align:left;width:100%;font-size:1.1rem;font-weight:600;line-height:1.6}.tvo-tut-content p{margin-bottom:1.2rem}.tvo-instruction{color:var(--highlight-color);text-align:left;width:100%;margin-bottom:1rem;font-weight:800}.tvo-label{text-transform:uppercase;color:#aaa;text-align:left;width:100%;margin-bottom:6px;font-size:1rem;font-weight:700;display:block}.tvo-translation-box{color:#444;text-align:left;background-color:#f0f4f7;border-left:5px solid #ddd;border-radius:10px;width:100%;margin-bottom:1rem;padding:12px 15px;font-size:1.1rem;font-style:italic;font-weight:600}.tvo-sentence-box{text-align:left;box-sizing:border-box;background:#fff;border:2px solid #f0f0f0;border-radius:12px;width:100%;min-height:60px;margin-bottom:20px;padding:.5rem 60px .5rem 1.5rem;font-size:1.6rem;font-weight:600;line-height:1.5;position:relative}.tvo-word{cursor:pointer;border:1px solid #0000;border-radius:6px;margin-right:4px;padding:2px 4px;transition:all .2s;display:inline-block}.tvo-word:hover{background-color:#f0f4f8;border-color:#d1d9e6}.tvo-word.tvo-punct{cursor:default;pointer-events:none;margin-left:-8px;padding-left:0}.tvo-word.tvo-fixed{color:#bbb;cursor:default;background:0 0}.tvo-word.active{background-color:var(--highlight-color);color:#fff;transform:scale(1.05)}.tvo-plus-btn{color:#999;cursor:pointer;background:#f5f5f5;border:2px dashed #ddd;border-radius:10px;justify-content:center;align-items:center;width:48px;height:48px;font-size:1.8rem;font-weight:900;transition:all .2s;display:flex;position:absolute;top:50%;right:15px;transform:translateY(-50%)}.tvo-plus-btn:hover{background:var(--highlight-color);color:#fff;border-color:var(--highlight-color)}.tvo-plus-btn.tvo-fixed{opacity:0;pointer-events:none}.tvo-options{background:#fafafa;border-radius:12px;justify-content:center;align-items:center;gap:12px;width:100%;margin-bottom:1rem;padding:15px;display:flex}.tvo-choice-btn{cursor:pointer;background:#fff;border:2px solid #ddd;border-radius:12px;min-width:80px;padding:12px 20px;font-size:1.1rem;font-weight:800;transition:all .2s;box-shadow:0 4px #eee}.tvo-choice-btn:hover:not(:disabled){border-color:#bbb;transform:translateY(-2px)}.tvo-choice-btn:active:not(:disabled){box-shadow:none;transform:translateY(2px)}.tvo-choice-btn.correct{background:var(--brand-green);border-color:var(--brand-green);color:#fff}.tvo-choice-btn.wrong{background:var(--brand-red);border-color:var(--brand-red);color:#fff}.tvo-target-box{border:2px solid var(--brand-green);color:#333;box-sizing:border-box;text-align:left;background:#fafdff;border-radius:12px;width:100%;min-height:2em;padding:.5rem 1.5rem;font-size:1.6rem;font-weight:600;line-height:1.4}.tvo-target-word{margin-right:4px;display:inline-block}.tvo-target-word.tvo-punct{margin-left:-4px}.tvo-target-word.modified{color:var(--brand-green);font-weight:800}.tvo-explanation{width:100%;color:var(--brand-green);text-align:left;background:#e8f8f0;border-radius:10px;margin-top:15px;padding:15px;font-size:1rem;font-weight:600;line-height:1.5;animation:.3s fadeIn}.tvo-explanation.error{color:var(--brand-red);background:#fee2e2}.tvo-controls{justify-content:space-between;align-items:center;width:100%;margin-top:1.5rem;display:flex}.tvo-btn-main{color:#000;cursor:pointer;white-space:nowrap;text-align:center;background:#fff;border:2px solid #000;border-radius:12px;justify-content:center;align-items:center;width:200px;height:50px;padding:0 10px;font-size:1rem;font-weight:700;transition:all .2s;display:flex;box-shadow:0 4px #0000001a}.tvo-btn-main.primary{background-color:var(--brand-green);color:#fff;border-color:var(--brand-green);box-shadow:0 6px 15px #436f4d4d}.tvo-btn-main.primary:hover{background-color:#385d41;box-shadow:0 10px 20px #436f4d66}.tvo-btn-main:hover:not(.primary){background-color:#f9f9f9;transform:translateY(-2px)}.tvo-btn-main:active{box-shadow:none;transform:translateY(2px)}.tvo-btn-main.disabled{opacity:.5;cursor:default;box-shadow:none;pointer-events:none}.tvo-btn-plus-lvl{cursor:pointer;background:#fff;border:2px solid #ddd;border-radius:14px;justify-content:center;align-items:center;width:100px;height:56px;transition:all .3s;display:flex}.tvo-btn-plus-lvl.enabled{border-color:var(--brand-green);background-color:#f0fdf4}.tvo-btn-plus-lvl svg{fill:#333;filter:grayscale();opacity:.3;width:auto;height:28px}.tvo-btn-plus-lvl.enabled svg{filter:none;opacity:1}@keyframes fadeIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}@media (max-width:600px){.tvo-sentence-box,.tvo-target-box{padding:1rem;font-size:1.2rem}.tvo-tut-title{font-size:1.5rem}.tvo-btn-main{min-width:180px;padding:0 20px;font-size:1.1rem}}@keyframes flash-red{0%,50%{color:#c0392b;background-color:#fadbd8;transform:scale(1.1)}to{color:var(--brand-orange);background-color:#fff3e0;transform:scale(1)}}.error-flash{animation:.6s ease-out flash-red}@keyframes shake{0%,to{transform:translate(0)}25%,75%{transform:translate(-5px)}50%{transform:translate(5px)}}.shake{animation:.4s shake}.tvo-modal-overlay{-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);z-index:10000;justify-content:center;align-items:center;width:100%;height:100%;padding:20px;display:flex;position:fixed;top:0;left:0}.tvo-modal-content{background:#fff;border-radius:25px;flex-direction:column;width:100%;max-width:520px;max-height:90vh;padding:30px;animation:.4s cubic-bezier(.18,.89,.32,1.28) tvo-popIn;display:flex;overflow-y:auto;box-shadow:0 20px 50px #0003}@keyframes tvo-popIn{0%{opacity:0;transform:scale(.8)}to{opacity:1;transform:scale(1)}}.tvo-modal-header{justify-content:center;margin-bottom:25px;display:flex}.tvo-modal-logo{width:auto;height:60px}.tvo-modal-icon-img{width:64px;height:64px;margin-bottom:15px;margin-left:auto;margin-right:auto;display:block}.tvo-modal-title{color:#c0392b;text-align:center;margin-bottom:15px;font-size:1.5rem;font-weight:800;line-height:1.2}.tvo-modal-text{color:#444;text-align:center;margin-bottom:25px;font-size:1rem;line-height:1.5}.tvo-modal-btn{color:#fff;cursor:pointer;background:#436f4d;border:none;border-radius:50px;align-self:center;padding:12px 30px;font-size:1rem;font-weight:700;transition:transform .2s,background .2s;box-shadow:0 6px 15px #436f4d4d}.tvo-modal-btn:hover{background:#355e3f;transform:scale(1.05)}@media (max-width:480px){.tvo-modal-content{padding:25px}.tvo-modal-title{font-size:1.3rem}}