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ease-out}.field-error:before{content:"⚠";font-size:.7rem;flex-shrink:0}.form-group textarea{padding:1rem 1.25rem;border:2px solid var(--border-color);border-radius:10px;background:#ffffff08;color:inherit;font-size:1.05rem;font-family:inherit;resize:vertical;transition:all .2s ease;line-height:1.6;min-height:100px}.form-group textarea:focus{outline:none;border-color:var(--primary-color);background:#ffffff14;box-shadow:0 0 0 4px #646cff26}.form-group textarea:disabled{opacity:.5;cursor:not-allowed}.rte-root{display:flex;flex-direction:column;gap:6px}.rte-field-wrap{position:relative}.rte-editor{width:100%;box-sizing:border-box;padding:1rem 1.25rem;border:2px solid var(--border-color);border-radius:10px;background:#ffffff08;color:inherit;font-size:1.05rem;font-family:inherit;line-height:1.6;min-height:80px;transition:border-color .2s ease,background .2s ease,box-shadow .2s ease;outline:none;white-space:pre-wrap;word-break:break-word;overflow-y:auto;position:relative;cursor:text}.rte-editor:focus{border-color:var(--primary-color);background:#ffffff14;box-shadow:0 0 0 4px #646cff26}.rte-editor--disabled{opacity:.5;cursor:not-allowed;pointer-events:none}.rte-editor[data-placeholder]:not([data-placeholder=""]):before{content:attr(data-placeholder);position:absolute;top:1rem;left:1.25rem;color:var(--text-secondary);opacity:.5;pointer-events:none;font-size:1.05rem;line-height:1.6;white-space:nowrap;overflow:hidden}.rte-hidden-mark{background:#6366f138;border:1px solid rgba(99,102,241,.4);border-radius:3px;padding:0 3px;cursor:pointer;transition:background .15s,border-color .15s;display:inline}.rte-hidden-mark:hover{background:#ef44442e;border-color:#ef444466}.rte-toolbar{position:absolute;bottom:calc(100% + 10px);left:50%;transform:translate(-50%);display:flex;align-items:center;background:#0f0c29f7;border:1px solid var(--primary-color);border-radius:8px;padding:4px;box-shadow:0 4px 24px #6366f159;backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);z-index:60;white-space:nowrap;animation:rte-toolbar-in .13s cubic-bezier(.4,0,.2,1);pointer-events:all}.rte-toolbar:after{content:"";position:absolute;top:100%;left:50%;transform:translate(-50%);border:7px solid transparent;border-top-color:var(--primary-color)}.rte-toolbar:before{content:"";position:absolute;top:calc(100% - 1px);left:50%;transform:translate(-50%);border:6px solid transparent;border-top-color:#0f0c29f7;z-index:1}.rte-toolbar__btn{display:flex;align-items:center;gap:6px;padding:6px 12px;background:linear-gradient(135deg,var(--primary-color) 0%,var(--primary-light) 100%);border:none;border-radius:6px;color:#fff;font-size:.78rem;font-weight:600;cursor:pointer;letter-spacing:.01em;transition:opacity .15s}.rte-toolbar__btn:hover{opacity:.88}@keyframes rte-toolbar-in{0%{opacity:0;transform:translate(-50%) translateY(5px)}to{opacity:1;transform:translate(-50%) translateY(0)}}.rte-hint{display:flex;align-items:center;gap:5px;margin:0;font-size:.72rem;color:var(--text-secondary);opacity:.7;-webkit-user-select:none;user-select:none}.modal-actions{display:flex;gap:1rem;margin-top:2rem;justify-content:flex-end}.submit-button{padding:1rem 2rem;background:linear-gradient(135deg,var(--primary-color) 0%,var(--primary-hover) 100%);color:#fff;border:none;border-radius:12px;font-size:1.05rem;font-weight:600;cursor:pointer;transition:var(--transition-smooth);box-shadow:0 4px 16px #6366f14d;position:relative;overflow:hidden}.submit-button:before{content:"";position:absolute;top:0;left:-100%;width:100%;height:100%;background:linear-gradient(90deg,transparent,rgba(255,255,255,.2),transparent);transition:left .6s ease}.submit-button:hover:before{left:100%}.submit-button:hover:not(:disabled){transform:translateY(-3px);box-shadow:0 8px 24px #6366f180}.submit-button:active:not(:disabled){transform:translateY(-1px)}.submit-button:disabled{opacity:.5;cursor:not-allowed;transform:none}.cancel-button{padding:1rem 2rem;background:#ffffff0d;color:var(--text-primary);border:1px solid var(--border-color);border-radius:12px;font-size:1.05rem;font-weight:600;cursor:pointer;transition:var(--transition-fast)}.cancel-button:hover:not(:disabled){background:#ffffff1f;border-color:var(--border-color-hover);transform:translateY(-2px);box-shadow:0 4px 12px #00000026}.cancel-button:disabled{opacity:.5;cursor:not-allowed}.error-message{padding:1rem;background:#ff6b6b26;border:2px solid #ff6b6b;border-radius:8px;color:#ff6b6b;font-weight:600;text-align:center}.image-modal-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background:#000000e6;display:flex;justify-content:center;align-items:center;z-index:2000;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);animation:fadeIn .2s ease-out}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}.image-modal-content{position:relative;max-width:95vw;max-height:95vh;display:flex;justify-content:center;align-items:center;animation:zoomIn .3s ease-out;transition:all .3s ease}.image-modal-content.collapsed{max-width:50vw;max-height:50vh}.image-modal-content.expanded{max-width:95vw;max-height:95vh}@keyframes zoomIn{0%{opacity:0;transform:scale(.8)}to{opacity:1;transform:scale(1)}}.image-modal-img{max-width:100%;max-height:95vh;object-fit:contain;border-radius:12px;box-shadow:0 25px 80px #000c;transition:all .3s ease}.image-modal-content.collapsed .image-modal-img{max-height:50vh}.image-modal-close{position:absolute;top:-50px;right:0;background:#ffffff1a;border:2px solid rgba(255,255,255,.3);color:#fff;font-size:2.5rem;width:48px;height:48px;border-radius:50%;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:all .2s ease;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.image-modal-close:hover{background:#fff3;border-color:#ffffff80;transform:scale(1.1)}.image-with-zoom{position:relative;display:inline-block;cursor:pointer}.image-with-zoom:after{content:"";position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:48px;height:48px;background:#0009;border-radius:50%;opacity:0;transition:opacity .2s ease;pointer-events:none;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24' viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Ccircle cx='11' cy='11' r='8'%3E%3C/circle%3E%3Cpath d='m21 21-4.35-4.35'%3E%3C/path%3E%3C/svg%3E");background-repeat:no-repeat;background-position:center;background-size:24px 24px;z-index:10}.image-with-zoom:hover:after{opacity:1}.image-with-zoom img{position:relative;z-index:1}.selected-images-preview{display:grid;grid-template-columns:repeat(auto-fill,minmax(120px,1fr));gap:1rem;margin-bottom:1.5rem;padding:1rem;background:#ffffff05;border:2px solid var(--border-color);border-radius:12px}.preview-image-item{position:relative;aspect-ratio:1;border-radius:8px;overflow:hidden;border:2px solid var(--border-color);transition:transform .2s ease}.preview-image-item:hover{transform:scale(1.05)}.preview-image-item img{width:100%;height:100%;object-fit:cover;display:block}.remove-preview-image{position:absolute;top:4px;right:4px;background:#ff6b6be6;border:none;color:#fff;font-size:1.5rem;width:28px;height:28px;border-radius:50%;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:all .2s ease;font-weight:700;line-height:1;padding:0}.remove-preview-image:hover{background:#ff6b6b;transform:scale(1.1)}.add-image-button{padding:1rem 2rem;background:var(--primary-color);color:#fff;border:2px solid transparent;border-radius:10px;font-size:1.05rem;font-weight:600;cursor:pointer;transition:all .2s ease;box-shadow:0 4px 12px #646cff4d;width:100%}.add-image-button:hover:not(:disabled){background:var(--primary-hover);transform:translateY(-2px);box-shadow:0 6px 20px #646cff66}.add-image-button:disabled{opacity:.6;cursor:not-allowed;transform:none}.edit-word-images-preview .preview-image-item img{object-fit:cover}.image-processing-status{display:flex;align-items:center;gap:.5rem;margin-top:.5rem;color:var(--text-secondary);font-size:.875rem}@keyframes field-error-in{0%{opacity:0;transform:translateY(-4px)}to{opacity:1;transform:translateY(0)}}.abandon-button{padding:.75rem 1.5rem;background:#ef44441a;color:var(--error-color);border:1px solid var(--error-color);border-radius:12px;font-weight:600;cursor:pointer;transition:var(--transition-fast)}.practice-footer .abandon-button{margin-left:2rem;margin-top:1rem}.abandon-button:hover{background:linear-gradient(135deg,#ef4444,#dc2626);color:#fff;border-color:transparent;transform:translateY(-2px);box-shadow:0 4px 12px #ef444466}.practice-card{background:var(--bg-card);border:1px solid var(--border-color);border-radius:24px;padding:2.5rem;box-shadow:var(--shadow-xl);max-width:1400px;width:100%;margin:0 auto;-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);position:relative;overflow:hidden;display:grid;grid-template-columns:1fr;gap:2rem}.practice-links{margin-top:1rem;padding:1.5rem;background:#6366f10d;border:1px solid rgba(99,102,241,.2);border-radius:12px}.practice-links .links-list{list-style:none;padding:0;margin:0;display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:1rem}.practice-links .links-list li{margin:0}.practice-link{display:flex;align-items:center;padding:.75rem 1.25rem;background:var(--bg-card);border:1px solid var(--border-color);border-radius:10px;color:var(--primary-color);text-decoration:none;font-weight:500;font-size:1.05rem;transition:var(--transition-fast);width:100%}.practice-link:hover{background:var(--primary-color);color:#fff;border-color:var(--primary-color);transform:translateY(-2px);box-shadow:0 4px 12px #6366f14d}.practice-card:before{content:"";position:absolute;top:0;left:0;right:0;height:4px;background:linear-gradient(90deg,var(--primary-color),var(--primary-light),var(--secondary-color));border-radius:24px 24px 0 0}.practice-question{text-align:left;margin-bottom:0}.practice-question h2{margin-bottom:1.5rem;color:var(--text-primary);font-weight:700;font-size:1.5rem}.definition-wrapper{position:relative}.definition-collapsed .practice-definition{display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}.definition-collapsed:after{content:"";position:absolute;bottom:0;left:0;right:0;height:3.5rem;background:linear-gradient(to bottom,transparent,var(--bg-card));border-radius:0 0 16px 16px;pointer-events:none}.definition-expand-btn{background:none;border:none;color:var(--primary-color);cursor:pointer;font-size:.9rem;font-weight:600;padding:.4rem 0;text-decoration:underline;text-underline-offset:3px;display:block;margin-top:.5rem;opacity:.8;transition:opacity .15s ease}.definition-expand-btn:hover{opacity:1}.practice-definition{font-size:1.75rem;font-weight:600;background:linear-gradient(135deg,var(--primary-color) 0%,var(--primary-light) 100%);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;margin-bottom:0;line-height:1.8;white-space:pre-wrap;padding:2rem 2.5rem;border-radius:16px;position:relative}.practice-definition.blurred-text{filter:blur(10px);-webkit-user-select:none;user-select:none;pointer-events:none;-webkit-text-fill-color:rgba(99,102,241,.6);background:none;background-clip:unset;-webkit-background-clip:unset}.practice-definition-emoji{-webkit-text-fill-color:initial;background:none;-webkit-background-clip:unset;background-clip:unset}.practice-definition--rich{background:none;-webkit-text-fill-color:inherit;background-clip:initial;-webkit-background-clip:initial;color:var(--text-primary)}.practice-definition:before{content:"";position:absolute;top:0;right:0;bottom:0;left:0;background:#6366f114;border:1px solid rgba(99,102,241,.2);border-radius:16px;z-index:-1}.practice-toggles{display:flex;gap:1rem;margin-top:1.5rem;flex-wrap:wrap}.toggle-button{padding:.875rem 1.75rem;background:#646cff1a;color:var(--primary-color);border:2px solid var(--primary-color);border-radius:10px;font-weight:600;cursor:pointer;transition:all .2s ease;font-size:1.05rem;flex:1;min-width:200px}.toggle-button:hover,.toggle-button--active{background:var(--primary-color);color:#fff}.practice-example-container{margin-top:1rem;margin-bottom:0}.practice-example{font-style:italic;color:var(--text-primary);font-size:1.3rem;white-space:pre-wrap;background:#646cff14;border-left:4px solid var(--primary-color);padding:1.75rem 2.25rem;border-radius:10px;margin-top:1.25rem;line-height:1.9;min-height:4rem}.practice-form{display:flex;flex-direction:column;gap:1.5rem;margin-top:1rem}.practice-input{padding:1.5rem 2rem;border:2px solid var(--border-color);border-radius:16px;background:#ffffff0d;color:inherit;font-size:1.5rem;text-align:left;transition:var(--transition-fast);font-weight:500}.practice-input:focus{outline:none;border-color:var(--primary-color);background:#ffffff1a;box-shadow:0 0 0 4px #6366f126;transform:translateY(-2px)}.practice-actions{display:flex;gap:1rem;justify-content:center}.skip-button{padding:.875rem 2rem;background:#ffffff0d;color:inherit;border:2px solid var(--border-color);border-radius:8px;font-size:1rem;font-weight:600;cursor:pointer;transition:all .2s ease}.skip-button:hover{background:#ffffff1a;border-color:var(--border-color-hover)}.practice-result{text-align:center}.result-message{font-size:2.25rem;font-weight:800;margin-bottom:2rem;padding:2rem;border-radius:16px;border:none;box-shadow:var(--shadow-md)}.result-message.correct{background:linear-gradient(135deg,#10b98133,#05966926);color:var(--secondary-color);border:1px solid var(--secondary-color)}.result-message.incorrect{background:linear-gradient(135deg,#ef444433,#dc262626);color:var(--error-color);border:1px solid var(--error-color)}.correct-answer{font-size:1.25rem;margin-bottom:2rem;padding:1rem;background:#ffffff0d;border-radius:8px;color:var(--text-primary)}.practice-footer{margin-top:2rem;padding-top:2rem;border-top:2px solid var(--border-color)}.practice-stats-mini{display:flex;justify-content:center;align-items:center;gap:2rem;flex-wrap:wrap}.stat-mini{font-size:1.2rem;font-weight:700;padding:.75rem 1.5rem;border-radius:10px;background:#ffffff0d;border:1px solid var(--border-color)}.stat-mini.correct{color:#51cf66}.stat-mini.incorrect{color:#ff6b6b}.practice-completed{text-align:center;padding:3rem;background:var(--bg-card);border:2px solid var(--border-color);border-radius:16px;box-shadow:var(--shadow-lg)}.practice-completed h1{margin-bottom:2rem;color:var(--primary-color)}.practice-stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:1.5rem;margin-bottom:2rem}.stat-card{background:#ffffff0d;border:2px solid var(--border-color);border-radius:12px;padding:1.5rem;display:flex;flex-direction:column;gap:.5rem;transition:all .2s ease}.stat-card:hover{border-color:var(--border-color-hover);transform:translateY(-2px)}.stat-label{font-size:.9rem;color:var(--text-secondary);font-weight:600}.stat-value{font-size:2rem;font-weight:700;color:var(--text-primary)}.stat-value.correct{color:#51cf66}.stat-value.incorrect{color:#ff6b6b}.practice-image-gallery{margin:0;display:flex;flex-direction:column;align-items:center;gap:1rem}.practice-image-container{width:100%;max-width:100%;height:350px;display:flex;align-items:center;justify-content:center;background:#00000005;border-radius:12px;border:2px solid var(--border-color);overflow:hidden;padding:1rem}.practice-image{max-width:100%;max-height:100%;width:auto;height:auto;object-fit:contain;border-radius:8px}.image-navigation{display:flex;align-items:center;gap:1.5rem;padding:.75rem 1.5rem;background:#646cff0d;border-radius:10px;border:2px solid rgba(100,108,255,.2)}.image-nav-button{width:40px;height:40px;display:flex;align-items:center;justify-content:center;background:var(--primary-color);color:#fff;border:none;border-radius:8px;font-size:1.25rem;font-weight:700;cursor:pointer;transition:all .2s ease}.image-nav-button:hover{background:#5a62d4;transform:scale(1.05)}.image-nav-button:active{transform:scale(.95)}.image-counter{font-size:1rem;font-weight:600;color:var(--primary-color);min-width:60px;text-align:center}.practice-form .primary-button{width:100%}.home-hero{text-align:center;padding:5rem 2rem;position:relative}.home-title{font-size:3.5rem;font-weight:800;margin-bottom:1.5rem;background:linear-gradient(135deg,var(--primary-color) 0%,var(--primary-light) 50%,#a78bfa 100%);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;letter-spacing:-1px;line-height:1.2;animation:fadeInUp .8s ease-out}@keyframes fadeInUp{0%{opacity:0;transform:translateY(30px)}to{opacity:1;transform:translateY(0)}}.home-subtitle{font-size:1.5rem;color:var(--text-secondary);margin-bottom:3rem;font-weight:400;line-height:1.6;animation:fadeInUp .8s ease-out .2s both}.home-actions{display:flex;gap:1.5rem;justify-content:center;margin-bottom:5rem;flex-wrap:wrap;animation:fadeInUp .8s ease-out .4s both}.home-features{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:2.5rem;max-width:1200px;margin:0 auto}.feature-card{background:var(--bg-card);border:1px solid var(--border-color);border-radius:20px;padding:2.5rem;transition:var(--transition-smooth);box-shadow:var(--shadow-sm);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);position:relative;overflow:hidden}.feature-card:before{content:"";position:absolute;top:0;left:0;right:0;height:4px;background:linear-gradient(90deg,var(--primary-color),var(--primary-light));opacity:0;transition:opacity .3s ease}.feature-card:hover:before{opacity:1}.feature-card:hover{border-color:var(--border-color-hover);box-shadow:0 16px 40px #00000040;transform:translateY(-8px);background:var(--bg-card-hover)}.feature-card h3{font-size:1.75rem;font-weight:700;margin-bottom:1rem;background:linear-gradient(135deg,var(--primary-color) 0%,var(--primary-light) 100%);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;letter-spacing:-.5px}.feature-emoji{-webkit-text-fill-color:initial;background:none;-webkit-background-clip:initial;background-clip:initial}.feature-card p{color:var(--text-secondary);line-height:1.7;font-size:1.05rem}