@import"https://fonts.googleapis.com/css2?family=Fredoka:wght@300;400;500;600;700&family=Outfit:wght@400;700;900&display=swap";:root{--primary: #3b82f6;--secondary: #ec4899;--success: #10b981;--danger: #ef4444;--warning: #f59e0b;--bg-gradient: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);--card-bg: rgba(255, 255, 255, .82);--radius: 24px}*{margin:0;padding:0;box-sizing:border-box}body{font-family:Fredoka,sans-serif;background:var(--bg-gradient);color:#1e293b;min-height:100vh;overflow-x:hidden;-webkit-font-smoothing:antialiased}header{padding:1rem 2rem;background:#ffffffb3;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);position:sticky;top:0;z-index:100;border-bottom:1px solid 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#0000000f;border:1px solid white;text-align:center}.header-actions{display:flex;align-items:center;gap:1rem;flex-shrink:0}.btn-sound{background:#fff;border:2px solid #e2e8f0;width:40px;height:40px;border-radius:12px;display:flex;align-items:center;justify-content:center;cursor:pointer;font-size:1.2rem;transition:all .2s;padding:0}.btn-sound:hover{border-color:var(--primary);transform:translateY(-2px);box-shadow:0 4px 10px #0000000d}.btn-sound.muted{background:#f1f5f9;color:#94a3b8;border-color:#cbd5e1}.btn-ranking-header{background:var(--secondary);color:#fff;border:none;padding:.5rem .8rem;border-radius:12px;font-weight:700;font-size:.85rem;cursor:pointer;transition:all .2s;white-space:nowrap}.btn-main{background:var(--primary);color:#fff;border:none;padding:1rem 2rem;border-radius:18px;font-weight:700;font-size:1.1rem;cursor:pointer;transition:all .2s cubic-bezier(.4,0,.2,1)}.btn-main:hover{transform:translateY(-3px);filter:brightness(1.1);box-shadow:0 10px 20px #3b82f633}.option-btn{background:#fff;border:2px solid #e2e8f0;padding:1.2rem;border-radius:18px;font-size:1.1rem;font-weight:600;color:#475569;cursor:pointer;transition:all .2s}.option-btn:hover:not(:disabled){border-color:var(--primary);background:#f0f7ff;color:var(--primary);transform:translateY(-2px)}.option-btn.correct{background:var(--success)!important;border-color:var(--success)!important;color:#fff!important;animation:pulse-grow .6s ease-out}.option-btn.wrong{background:var(--danger)!important;border-color:var(--danger)!important;color:#fff!important;animation:shake-hard .5s ease-in-out}.options-grid{display:grid;grid-template-columns:1fr 1fr;gap:1rem;margin-top:1rem}@media(max-width:600px){.options-grid{grid-template-columns:1fr}}.ranking-columns{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:1rem;text-align:left}.ranking-column{background:#fff;padding:1.2rem;border-radius:18px;border:1px solid #e2e8f0}.ranking-entry{display:flex;justify-content:space-between;align-items:center;padding:.8rem 0;border-bottom:1px solid #f1f5f9;gap:.5rem}.ranking-entry>div{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.progress-bar-bg{width:100%;height:12px;background:#e2e8f0;border-radius:10px;margin:1.5rem 0;overflow:hidden}.progress-bar-fill{height:100%;background:var(--primary);transition:width .4s ease}.stat-box{background:#fff;padding:.6rem 1rem;border-radius:12px;font-family:Outfit,sans-serif;font-weight:800;box-shadow:0 4px 6px #0000000d}@keyframes shake{0%,to{transform:translate(0)}25%{transform:translate(-8px)}75%{transform:translate(8px)}}.shake{animation:shake .4s ease}@keyframes shake-hard{0%,to{transform:translate(0) rotate(0)}10%,30%,50%,70%,90%{transform:translate(-10px) rotate(-1.5deg)}20%,40%,60%,80%{transform:translate(10px) rotate(1.5deg)}}@keyframes pulse-grow{0%{transform:scale(1)}50%{transform:scale(1.08);box-shadow:0 0 25px #10b98166}to{transform:scale(1)}}@media(max-width:600px){header{padding:.8rem 1rem}.logo-text{font-size:1.2rem}.logo-img{width:32px;height:32px}.title-main{font-size:2.2rem}.quiz-card{padding:1.5rem 1rem}.question-text{font-size:1.4rem}.ranking-columns{grid-template-columns:1fr}.ranking-entry{font-size:.85rem}}.modal-overlay{position:fixed;inset:0;background:#0f172a99;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);display:flex;align-items:center;justify-content:center;z-index:1000;padding:1.5rem}.modal-content{background:#fff;padding:2.5rem;border-radius:30px;width:100%;max-width:450px;box-shadow:0 25px 50px -12px #00000040;text-align:center;border:4px solid var(--primary)}.modal-header h2{font-family:Outfit,sans-serif;font-size:2rem;margin:1rem 0 .5rem;color:#0f172a}.modal-header p{color:#64748b;margin-bottom:2rem}.modal-input{width:100%;padding:1.2rem;border:2px solid #e2e8f0;border-radius:15px;font-size:1.1rem;font-family:inherit;margin-bottom:.5rem;outline:none;transition:all .2s}.modal-input:focus{border-color:var(--primary);box-shadow:0 0 0 4px #3b82f61a}.admin-modal{border-color:#475569}.btn-admin-trigger{background:transparent;border:1px dashed #94a3b8;color:#64748b;padding:.5rem 1rem;border-radius:10px;cursor:pointer;font-size:.8rem;font-family:inherit}.admin-login h3,.admin-panel h3{margin-bottom:1.5rem;font-size:1.5rem}.admin-actions{display:flex;gap:1rem;margin-top:1rem}.admin-controls-grid{display:grid;grid-template-columns:1fr;gap:1rem}.admin-panel-btn{padding:1rem;border-radius:15px;border:2px solid #e2e8f0;background:#fff;font-weight:700;cursor:pointer;transition:all .2s;font-family:inherit}.admin-panel-btn.active{background:#f0f7ff;border-color:var(--primary);color:var(--primary)}.admin-panel-btn.danger{border-color:#fee2e2;color:#ef4444}.admin-panel-btn.danger:hover{background:#fef2f2}.btn-back{background:#f1f5f9;border:2px solid #e2e8f0;padding:.8rem 1.8rem;border-radius:15px;font-weight:700;color:#64748b;cursor:pointer;transition:all .2s;font-family:Fredoka,sans-serif;text-transform:uppercase;letter-spacing:.5px;font-size:.85rem;display:inline-flex;align-items:center;gap:.5rem}.btn-back:hover{background:#fff;color:var(--primary);border-color:var(--primary);transform:translateY(-2px);box-shadow:0 5px 15px #0000000d}.btn-exit-game{background:#fff;border:2px solid #e2e8f0;color:#64748b;padding:.6rem 1.2rem;border-radius:12px;font-weight:700;cursor:pointer;font-family:inherit;transition:all .2s;display:flex;align-items:center;gap:.5rem}.btn-exit-game:hover{background:#fef2f2;border-color:#ef4444;color:#ef4444;transform:translateY(-2px)}.category-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:1.5rem}.category-card{background:#fff;padding:2rem;border-radius:var(--radius);text-align:center;box-shadow:0 4px 6px -1px #0000001a;cursor:pointer;transition:all .3s cubic-bezier(.175,.885,.32,1.275)}.category-card:hover{transform:scale(1.05);box-shadow:0 20px 30px -10px #0000001a}.difficulty-grid{display:grid;grid-template-columns:1fr;gap:1rem;margin-top:2rem}.diff-btn{display:flex;align-items:center;gap:1.5rem;padding:1.5rem;border:2px solid #e2e8f0;background:#fff;border-radius:20px;cursor:pointer;transition:all .2s;text-align:left}.diff-btn:hover{transform:translateY(-3px);box-shadow:0 10px 20px #0000000d}.diff-btn.facile:hover{border-color:#10b981}.diff-btn.difficile:hover{border-color:#f59e0b}.diff-btn.extreme:hover{border-color:#ef4444}.diff-icon{font-size:2rem}.diff-info strong{font-size:1.2rem;color:#0f172a}.diff-info{line-height:1.4;color:#64748b}.lives-container{display:flex;gap:.5rem}.heart{font-size:1.5rem;filter:drop-shadow(0 2px 4px rgba(0,0,0,.1))}.heart.empty{filter:grayscale(1) opacity(.3)}.user-header-info{display:flex;align-items:center;gap:.6rem;background:#fff;padding:.4rem .8rem;border-radius:12px;border:2px solid #e2e8f0;cursor:pointer;transition:all .2s}.user-header-info:hover{border-color:var(--primary);background:#f0f7ff}.user-badge{font-size:1.2rem}.user-name{font-weight:700;color:#1e293b;font-size:.9rem}.profile-modal{max-width:500px}.profile-header{margin-bottom:2rem}.profile-avatar{font-size:4rem;margin-bottom:1rem}.belt-status-grid{display:grid;grid-template-columns:1fr 1fr;gap:1rem;text-align:left}.belt-status-card{background:#f8fafc;padding:1rem;border-radius:15px;border:1px solid #e2e8f0}@media(max-width:500px){.belt-status-grid{grid-template-columns:1fr}}.training-container{text-align:left}.training-grid{display:flex;flex-direction:column;gap:2.5rem}.training-section h3{font-family:Outfit,sans-serif;font-size:1.4rem;margin-bottom:1.2rem;text-transform:uppercase;letter-spacing:1px}.vocabulary-list{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:1rem}.vocab-item{background:#fff;padding:1rem;border-radius:14px;display:flex;align-items:center;justify-content:space-between;border:1px solid #e2e8f0;transition:all .2s;box-shadow:0 2px 4px #00000005}.vocab-item:hover{border-color:var(--primary);transform:translate(5px);box-shadow:0 4px 12px #0000000d}.vocab-korean{font-weight:800;color:var(--primary);font-family:Outfit,sans-serif;font-size:1rem}.vocab-divider{flex:1;height:1px;background:radial-gradient(circle,#e2e8f0 0%,transparent 100%);margin:0 1rem}.vocab-spanish{color:#64748b;font-size:.95rem;font-weight:500;text-align:right}@media(max-width:600px){.vocabulary-list{grid-template-columns:1fr}}