*{margin:0;padding:0;box-sizing:border-box}:root{--primary: #003049;--primary-light: #669BBC;--primary-dark: #002035;--primary-glow: rgba(0, 48, 73, .5);--accent: #C1121F;--accent-light: #e63946;--accent-dark: #780000;--accent-glow: rgba(193, 18, 31, .4);--success: #22c55e;--success-glow: rgba(34, 197, 94, .3);--danger: #C1121F;--danger-glow: rgba(193, 18, 31, .3);--warning: #f59e0b;--primary-color: var(--primary);--primary-strong: var(--primary-light);--secondary-color: var(--accent);--danger-color: var(--danger);--success-color: var(--success);--warning-color: var(--warning);--accent-strong: var(--accent-light);--bg: #001523;--bg-elevated: #002035;--surface: rgba(0, 48, 73, .5);--surface-alt: rgba(0, 32, 53, .6);--glass-bg: rgba(0, 32, 53, .85);--glass-border: rgba(102, 155, 188, .15);--glass-highlight: rgba(253, 240, 213, .05);--glass-blur: 12px;--border: rgba(102, 155, 188, .12);--border-color: var(--border);--text-primary: #FDF0D5;--text-secondary: #a8c4d4;--text-muted: #669BBC;--shadow-soft: 0 8px 32px rgba(0, 0, 0, .5);--shadow-strong: 0 16px 48px rgba(0, 0, 0, .6);--shadow-glow: 0 0 40px var(--primary-glow);--radius-sm: 10px;--radius-md: 14px;--radius-lg: 18px;--radius-xl: 24px}body{font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;background:var(--bg);color:var(--text-primary);min-height:100vh;line-height:1.6;overflow-x:hidden}.glass{background:var(--glass-bg);backdrop-filter:blur(var(--glass-blur));-webkit-backdrop-filter:blur(var(--glass-blur));border:1px solid var(--glass-border);box-shadow:var(--shadow-soft),inset 0 1px 0 var(--glass-highlight)}#root{min-height:100vh}a{color:inherit}.navbar{background:var(--bg-elevated);border-bottom:1px solid var(--glass-border);position:sticky;top:0;z-index:1000;padding:10px 16px}.navbar-content{max-width:1200px;margin:0 auto;display:flex;justify-content:space-between;align-items:center;gap:10px}.navbar-center{flex:1;display:flex;justify-content:center}.logo-text{font-size:1.8rem;font-weight:900;color:var(--accent);text-decoration:none;padding:4px 12px}.navbar-links{display:flex;gap:8px;flex-wrap:wrap}.nav-link{color:var(--text-secondary);text-decoration:none;font-weight:600;padding:10px 12px;border-radius:var(--radius-md);transition:all .25s ease;display:inline-flex;align-items:center;gap:8px}.nav-link:hover,.nav-link.active{background:#c1121f26;color:var(--accent-light)}.nav-icon{display:inline-flex;align-items:center;justify-content:center;color:var(--text-secondary)}.nav-icon.primary{color:var(--primary-light)}.nav-icon.accent{color:var(--accent)}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 18px;border-radius:var(--radius-md);font-size:1rem;font-weight:700;cursor:pointer;border:none;transition:all .25s cubic-bezier(.4,0,.2,1);text-decoration:none}.btn-primary{background:linear-gradient(135deg,var(--primary),var(--primary-light));color:#fff;box-shadow:0 8px 24px var(--primary-glow)}.btn-primary:hover{transform:translateY(-2px);box-shadow:0 12px 32px var(--primary-glow)}.btn-secondary{background:linear-gradient(135deg,var(--accent),var(--accent-light));color:#fff;box-shadow:0 8px 24px var(--accent-glow)}.btn-secondary:hover{transform:translateY(-2px);box-shadow:0 12px 32px var(--accent-glow)}.btn-danger{background:linear-gradient(135deg,#f87171,var(--danger));color:#fff;box-shadow:0 8px 24px var(--danger-glow)}.btn-danger:hover{transform:translateY(-2px);box-shadow:0 12px 32px var(--danger-glow)}.btn-outline{background:var(--glass-bg);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border:1px solid var(--glass-border);color:var(--text-primary)}.btn-outline:hover{border-color:var(--accent);color:var(--accent-light);box-shadow:0 0 20px #c1121f26}.btn-sm{padding:8px 14px;font-size:.95rem}.btn-lg{padding:14px 22px;font-size:1.05rem}.home-container{max-width:1100px;margin:0 auto;padding:36px 18px 50px;text-align:center}.home-container h1{font-size:2.6rem;font-weight:900;margin-bottom:12px;color:#fff}.home-container>p{font-size:1.05rem;color:var(--text-secondary);margin-bottom:32px;max-width:640px;margin-left:auto;margin-right:auto}.stats-overview{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;max-width:860px;margin:0 auto 40px}.stat-box{background:var(--glass-bg);backdrop-filter:blur(var(--glass-blur));-webkit-backdrop-filter:blur(var(--glass-blur));border:1px solid var(--glass-border);border-radius:var(--radius-lg);padding:18px 16px;text-align:left;box-shadow:var(--shadow-soft),inset 0 1px 0 var(--glass-highlight);transition:all .3s ease}.stat-box:hover{border-color:#c1121f4d;box-shadow:var(--shadow-soft),0 0 30px #c1121f1a}.stat-box .stat-icon{font-size:1.8rem;margin-bottom:10px}.stat-box .stat-value{font-size:1.8rem;font-weight:800;color:#fff}.stat-box .stat-label{font-size:.9rem;color:var(--text-muted)}.navigation{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:20px;max-width:1000px;margin:0 auto}.nav-card{background:var(--glass-bg);backdrop-filter:blur(var(--glass-blur));-webkit-backdrop-filter:blur(var(--glass-blur));border:1px solid var(--glass-border);border-radius:var(--radius-xl);padding:28px 22px;text-decoration:none;color:var(--text-primary);transition:all .3s cubic-bezier(.4,0,.2,1);box-shadow:var(--shadow-soft),inset 0 1px 0 var(--glass-highlight);position:relative;overflow:hidden}.nav-card:before{content:"";position:absolute;inset:0;background:linear-gradient(135deg,rgba(193,18,31,.1),transparent 60%);opacity:0;transition:opacity .3s ease}.nav-card:hover{transform:translateY(-4px);border-color:#c1121f66;box-shadow:var(--shadow-strong),0 0 40px #c1121f26}.nav-card:hover:before{opacity:1}.nav-card-icon{font-size:2.4rem;display:block;margin-bottom:14px}.nav-card-title{font-size:1.25rem;font-weight:800;margin-bottom:8px;color:#fff}.nav-card-description{color:var(--text-secondary);font-size:.95rem}.nav-card-badge{display:inline-block;margin-top:12px;padding:6px 12px;background:#c1121f26;color:var(--accent-light);border-radius:999px;font-size:.85rem;font-weight:700}.getting-started{max-width:700px;margin:60px auto 0;text-align:left;background:var(--glass-bg);backdrop-filter:blur(var(--glass-blur));-webkit-backdrop-filter:blur(var(--glass-blur));border:1px solid var(--glass-border);border-radius:var(--radius-lg);padding:24px 24px 10px;box-shadow:var(--shadow-soft),inset 0 1px 0 var(--glass-highlight)}.getting-started h3{font-size:1.3rem;margin-bottom:12px}.getting-started ol{list-style:none;counter-reset:steps}.getting-started li{counter-increment:steps;padding:10px 0 12px 46px;position:relative;border-bottom:1px solid var(--border);color:var(--text-secondary)}.getting-started li:last-child{border-bottom:none}.getting-started li:before{content:counter(steps);position:absolute;left:0;width:32px;height:32px;background:linear-gradient(135deg,var(--primary),var(--accent));color:#fff;border-radius:50%;display:flex;align-items:center;justify-content:center;font-weight:800}.quiz-container{max-width:900px;margin:40px auto;padding:0 20px 40px}.quiz-header{display:flex;justify-content:space-between;align-items:center;gap:16px;margin-bottom:24px;padding:18px;background:var(--glass-bg);backdrop-filter:blur(var(--glass-blur));-webkit-backdrop-filter:blur(var(--glass-blur));border:1px solid var(--glass-border);border-radius:var(--radius-lg);box-shadow:var(--shadow-soft),inset 0 1px 0 var(--glass-highlight)}.quiz-progress{flex:1;height:10px;background:#669bbc26;border-radius:12px;overflow:hidden}.quiz-progress-bar{height:100%;background:linear-gradient(90deg,var(--primary),var(--primary-light));border-radius:12px;transition:width .3s ease}.quiz-counter{font-weight:700;color:var(--text-secondary)}.quiz-card{background:var(--glass-bg);backdrop-filter:blur(var(--glass-blur));-webkit-backdrop-filter:blur(var(--glass-blur));border:1px solid var(--glass-border);border-radius:var(--radius-xl);padding:32px;text-align:center;box-shadow:var(--shadow-soft),inset 0 1px 0 var(--glass-highlight)}.question-badge{display:inline-block;padding:8px 14px;background:#c1121f26;color:var(--accent-light);border-radius:999px;font-weight:700;margin-bottom:14px}.question-text{font-size:1.9rem;font-weight:800;margin-bottom:10px}.question-hint{color:var(--text-muted);margin-bottom:24px}.options{display:grid;gap:12px}.option-btn{display:flex;align-items:center;gap:12px;padding:14px;background:#3b59981f;border:1px solid rgba(255,255,255,.06);border-radius:var(--radius-md);color:var(--text-primary);font-size:.96rem;cursor:pointer;transition:all .25s cubic-bezier(.4,0,.2,1);text-align:left}.option-btn:hover:not(:disabled){border-color:var(--accent);background:#c1121f1a;transform:translate(4px)}.option-btn:disabled{opacity:.8;cursor:not-allowed}.option-btn.correct{background:#22c55e26;border-color:var(--success);box-shadow:0 0 20px var(--success-glow)}.option-btn.incorrect{background:#ef444426;border-color:var(--danger);box-shadow:0 0 20px var(--danger-glow)}.option-letter{width:30px;height:30px;background:linear-gradient(135deg,var(--primary),var(--primary-light));border-radius:50%;display:flex;align-items:center;justify-content:center;font-weight:800;color:#fff;flex-shrink:0}.option-text{flex:1}.option-meaning-inline{margin-left:8px;padding:4px 8px;border-radius:10px;background:#3b599833;color:var(--primary-light);font-weight:700;font-size:.95rem}.option-icon{font-size:1.2rem}.option-meaning-panel{margin-top:18px;padding:14px 16px;background:#002035;border:1px solid var(--border);border-radius:var(--radius-lg);text-align:left}.option-meaning-title{font-weight:700;color:#fff;margin-bottom:10px}.option-meaning-list{display:grid;gap:10px}.option-meaning-row{display:flex;align-items:center;gap:10px;padding:10px 12px;border-radius:var(--radius-md);background:#ffffff08;border:1px solid rgba(255,255,255,.04)}.option-meaning-text{display:flex;flex-direction:column;gap:2px}.option-meaning-word{font-weight:700;color:#fff}.option-meaning-translation{color:var(--text-muted);font-size:.95rem}.option-letter.small{width:28px;height:28px;font-size:.9rem}.result-feedback{margin-top:20px;padding:12px 16px;border-radius:var(--radius-md);font-weight:700}.result-feedback.correct{background:#34d39924;border:1px solid var(--success);color:var(--success)}.result-feedback.incorrect{background:#ef444424;border:1px solid var(--danger);color:var(--danger)}.example-box{margin-bottom:16px;padding:12px;background:#002035;border:1px solid var(--border);border-radius:var(--radius-lg);text-align:left}.example-title{font-weight:700}.example-sentence{margin-top:8px;color:var(--text-secondary);line-height:1.5}.example-translation{margin-top:6px;color:var(--text-primary);font-weight:700}.example-error{margin-top:6px;color:var(--danger);font-weight:600}.example-debug{margin-top:6px;color:var(--text-muted);font-size:.85rem;line-height:1.4}.quiz-type-selection{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:16px;max-width:900px;margin:20px auto}.quiz-type-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:12px}.quiz-type-card{background:var(--glass-bg);backdrop-filter:blur(var(--glass-blur));-webkit-backdrop-filter:blur(var(--glass-blur));border:1px solid var(--glass-border);border-radius:var(--radius-lg);padding:22px 16px;text-align:center;cursor:pointer;transition:all .25s cubic-bezier(.4,0,.2,1);box-shadow:var(--shadow-soft),inset 0 1px 0 var(--glass-highlight)}.quiz-type-card:hover{border-color:var(--accent);transform:translateY(-3px);box-shadow:var(--shadow-soft),0 0 30px #c1121f26}.quiz-type-card.selected{border-color:var(--accent);box-shadow:var(--shadow-strong),0 0 40px #c1121f33;background:#c1121f14}.quiz-type-card .type-icon{font-size:2.2rem;display:block;margin-bottom:10px}.quiz-type-card .quiz-type-icon{font-size:2.1rem}.quiz-type-label{display:block;color:var(--text-secondary);font-weight:600}.quiz-type-card h3{font-size:1.05rem;margin-bottom:6px}.quiz-type-card p{color:var(--text-muted);font-size:.9rem}.quiz-exit-btn{background:transparent;border:none;color:var(--text-muted);cursor:pointer;font-size:1.2rem;margin-bottom:10px}.flashcard-container{perspective:1000px;max-width:520px;margin:28px auto 0}.flashcard{width:100%;height:320px;position:relative;transform-style:preserve-3d;transition:transform .7s ease;cursor:pointer}.flashcard.flipped{transform:rotateY(180deg)}.flashcard-front,.flashcard-back{position:absolute;width:100%;height:100%;backface-visibility:hidden;display:flex;flex-direction:column;align-items:center;justify-content:center;border-radius:var(--radius-xl);padding:28px;color:#fff}.flashcard-front{background:linear-gradient(135deg,var(--primary-dark),var(--primary));box-shadow:0 8px 32px var(--primary-glow)}.flashcard-back{background:linear-gradient(135deg,var(--accent-dark),var(--accent));transform:rotateY(180deg);box-shadow:0 8px 32px var(--accent-glow)}.flashcard-front span,.flashcard-back span{font-size:1.9rem;font-weight:800;text-align:center}.flashcard-label{position:absolute;top:16px;left:16px;font-size:.9rem;opacity:.9;background:#0003;padding:6px 12px;border-radius:12px;color:#fff}.flashcard-controls{display:flex;justify-content:center;gap:14px;margin-top:18px}.flashcard-tip{text-align:center;color:var(--text-muted);margin-top:14px}.matching-container{max-width:900px;margin:30px auto;padding:0 20px}.matching-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:12px;margin-top:20px}.matching-card{padding:16px 12px;background:var(--glass-bg);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border:1px solid var(--glass-border);border-radius:var(--radius-md);text-align:center;cursor:pointer;transition:all .25s ease;font-weight:600;box-shadow:var(--shadow-soft)}.matching-card:hover:not(.matched){border-color:var(--accent);transform:scale(1.03);box-shadow:0 0 20px #c1121f26}.matching-card.selected{border-color:var(--accent);background:#c1121f1a}.matching-card.matched{background:#22c55e1f;border-color:var(--success);cursor:default;opacity:.85}.wordlists-container{max-width:1100px;margin:40px auto;padding:20px 20px 70px;display:flex;flex-direction:column;gap:18px}.upload-section{background:var(--glass-bg);backdrop-filter:blur(var(--glass-blur));-webkit-backdrop-filter:blur(var(--glass-blur));border:1px solid var(--glass-border);border-radius:var(--radius-xl);padding:24px;margin-bottom:16px;text-align:center;box-shadow:var(--shadow-soft),inset 0 1px 0 var(--glass-highlight)}.upload-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:16px;max-width:600px;margin:0 auto}.upload-option{background:#ffffff08;border:1px solid var(--glass-border);border-radius:var(--radius-lg);padding:20px;box-shadow:var(--shadow-soft);transition:all .25s ease}.upload-option:hover{border-color:#c1121f4d}.upload-option h3{margin:10px 0 12px;color:#fff;font-size:1rem}.upload-hint{margin-top:16px;font-size:.85rem;color:var(--text-secondary)}.tools-section{background:var(--glass-bg);backdrop-filter:blur(var(--glass-blur));-webkit-backdrop-filter:blur(var(--glass-blur));border:1px solid var(--glass-border);border-radius:var(--radius-xl);padding:20px;margin-bottom:16px;box-shadow:var(--shadow-soft)}.section-title{margin:0 0 12px;font-size:1rem;font-weight:600;color:var(--text-primary)}.section-desc{color:var(--text-secondary);font-size:.9rem;margin:0 0 14px}.tools-actions{display:flex;gap:10px;flex-wrap:wrap}.merge-header{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:14px}.merge-header .input-field{flex:1;min-width:200px}.upload-icon{font-size:2.5rem;display:block}.file-input-wrapper input[type=text],.input-field{width:100%;padding:12px 14px;background:#002035;border:1px solid var(--border);border-radius:var(--radius-md);color:var(--text-primary);font-size:1rem}.input-field:focus,.file-input-wrapper input[type=text]:focus{outline:2px solid rgba(193,18,31,.3);border-color:var(--accent)}.file-label{display:inline-flex;align-items:center;gap:10px;padding:12px 20px;background:linear-gradient(135deg,var(--primary),var(--primary-light));border-radius:var(--radius-md);color:#fff;font-weight:700;cursor:pointer;transition:all .25s ease;box-shadow:0 6px 20px var(--primary-glow)}.file-label:hover{transform:translateY(-2px);box-shadow:0 8px 24px var(--primary-glow)}.upload-hint{color:var(--text-muted);font-size:.95rem}.spinner{margin:12px auto;width:32px;height:32px;border:4px solid #1f2937;border-top-color:var(--primary);border-radius:50%;animation:spin .8s linear infinite}.wordlist-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:16px}.wordlist-card{background:var(--glass-bg);backdrop-filter:blur(var(--glass-blur));-webkit-backdrop-filter:blur(var(--glass-blur));border:1px solid var(--glass-border);border-radius:var(--radius-lg);padding:20px;transition:all .25s cubic-bezier(.4,0,.2,1);box-shadow:var(--shadow-soft),inset 0 1px 0 var(--glass-highlight)}.word-preview{display:grid;gap:10px;margin-top:10px}.word-preview-item{display:flex;justify-content:space-between;gap:12px;padding:8px 10px;background:#ffffff08;border:1px solid rgba(255,255,255,.04);border-radius:var(--radius-md)}.word-preview-term{font-weight:700;color:#fff}.word-preview-translation{color:var(--text-secondary);text-align:right}.word-preview-more{color:var(--text-muted);font-size:.9rem}.wordlist-card:hover{transform:translateY(-4px);border-color:var(--accent);box-shadow:var(--shadow-strong),0 0 30px #c1121f1f}.wordlist-card.selected{border-color:var(--accent);box-shadow:var(--shadow-strong),0 0 40px #c1121f26}.wordlist-actions{display:flex;gap:8px;margin-top:12px}.list-stats{display:flex;gap:8px;margin-top:8px}.list-stats .stat-item{background:#34d3991f;color:var(--success);padding:6px 10px;border-radius:10px;font-weight:700}.list-stats .stat-item.warning{background:#f59e0b1f;color:var(--warning)}.manual-add-section{background:var(--glass-bg);backdrop-filter:blur(var(--glass-blur));-webkit-backdrop-filter:blur(var(--glass-blur));border:1px solid var(--glass-border);border-radius:var(--radius-xl);padding:20px;box-shadow:var(--shadow-soft),inset 0 1px 0 var(--glass-highlight)}.word-cards-list{display:flex;flex-direction:column;gap:12px}.word-card{background:var(--surface-alt);border:1px solid var(--border);border-radius:var(--radius-lg);padding:12px;display:flex;align-items:center;gap:10px}.word-card-body{display:flex;gap:10px;flex:1}.word-card-edit-input{padding:12px;background:#002035;border:1px solid var(--border);border-radius:var(--radius-md);color:var(--text-primary)}.word-card-separator{width:1px;background:var(--border)}.word-card-icons{display:flex;gap:6px}.word-card-icon-btn{background:#002035;border:1px solid var(--border);padding:10px;border-radius:var(--radius-md);cursor:pointer;color:var(--text-secondary)}.word-card-icon-btn.delete{color:var(--danger)}.word-list-header{display:flex;flex-direction:column;gap:12px;margin-bottom:16px}.word-list-title-section{display:flex;align-items:flex-start;gap:16px;justify-content:space-between;flex-wrap:wrap}.word-list-title{font-size:1.6rem;font-weight:800;display:flex;align-items:center;gap:8px;cursor:pointer}.word-list-title-block{display:flex;flex-direction:column;gap:4px;min-width:240px}.word-list-toolbar{display:flex;flex-direction:column;gap:8px;align-items:flex-end}.word-list-actions{display:flex;gap:8px;flex-wrap:wrap;justify-content:flex-end}.word-list-actions.bulk-actions{margin-top:8px}.word-list-bulk{border:1px solid var(--border);border-radius:var(--radius-md);padding:6px 10px;background:#002035}.word-list-bulk summary{cursor:pointer;color:var(--text-secondary);font-weight:600;list-style:none}.word-list-bulk summary::-webkit-details-marker{display:none}.word-list-bulk summary:after{content:"▾";margin-left:6px;font-size:.75rem;color:var(--text-muted)}.word-list-bulk[open] summary:after{content:"▴"}.word-list-bulk[open] summary{margin-bottom:6px}.word-list-meta{color:var(--text-muted);font-size:.92rem}.synonym-progress{margin-top:6px;color:var(--text-muted);font-size:.9rem;padding:6px 10px;border-radius:999px;border:1px solid rgba(41,182,246,.3);background:#29b6f614}.synonym-error{margin-top:6px;color:var(--danger);font-size:.9rem;padding:6px 10px;border-radius:999px;border:1px solid rgba(239,68,68,.4);background:#ef44441f}.translate-progress,.example-progress,.definition-progress{margin-top:6px;color:var(--text-muted);font-size:.9rem;padding:6px 10px;border-radius:999px;border:1px solid rgba(41,182,246,.3);background:#29b6f614}.example-error,.definition-error{margin-top:6px;color:var(--danger);font-size:.9rem;padding:6px 10px;border-radius:999px;border:1px solid rgba(239,68,68,.4);background:#ef44441f}.word-list-action-btn{background:#002035;border:1px solid var(--border);border-radius:var(--radius-md);padding:6px 10px;cursor:pointer;font-weight:600;color:var(--text-primary);font-size:.9rem}.word-list-icon{font-size:1.3rem}.word-list-search{display:flex;align-items:center;gap:10px;background:#002035;border:1px solid var(--border);border-radius:var(--radius-md);padding:10px 14px;margin:12px 0 16px}.search-icon{color:var(--text-muted)}.word-list-search-input{flex:1;border:none;background:transparent;font-size:1rem;outline:none;color:var(--text-primary)}.message{padding:12px 14px;border-radius:var(--radius-md);margin:12px 0;display:flex;align-items:center;gap:10px;font-weight:600}.message-success{background:#34d39924;border:1px solid var(--success);color:var(--success)}.message-error{background:#ef444424;border:1px solid var(--danger);color:var(--danger)}.word-table-header,.word-table-row,.word-table-add-row{display:grid;grid-template-columns:2fr 2fr 2fr 180px;align-items:center;gap:10px;padding:12px 0}.word-table-header{color:var(--text-muted);border-bottom:1px solid var(--border);font-weight:700}.word-table-col-actions{text-align:right}.word-table-input{padding:10px 12px;background:#002035;border:1px solid var(--border);border-radius:var(--radius-md);color:var(--text-primary)}.word-table-synonyms{color:var(--text-secondary);font-size:.95rem}.word-table-placeholder{color:var(--text-muted);font-size:.9rem;padding:0 4px}.word-table-input.editing{background:#0b1224}.word-table-add-btn{background:linear-gradient(135deg,var(--accent-dark),var(--accent));color:#fff;border:none;border-radius:var(--radius-md);padding:10px 14px;cursor:pointer;font-weight:800;box-shadow:0 4px 12px var(--accent-glow);transition:all .25s ease;min-width:84px;text-align:center}.word-table-add-btn:hover{transform:translateY(-1px);box-shadow:0 6px 16px var(--accent-glow)}.word-table-body{margin-top:6px}.word-list-status{display:flex;flex-wrap:wrap;gap:8px}.word-table-details{grid-column:1 / -1;margin-top:10px;padding:10px 12px;border:1px solid var(--border);border-radius:12px;background:#0b1224}.word-table-details.is-edit{margin-top:12px}.word-table-details summary{cursor:pointer;font-weight:600;color:var(--text-secondary);list-style:none}.word-table-details summary::-webkit-details-marker{display:none}.word-table-details summary:after{content:"▾";margin-left:8px;font-size:.75rem;color:var(--text-muted)}.word-table-details[open] summary:after{content:"▴"}.word-table-details[open] summary{margin-bottom:10px}.word-table-details-grid{display:grid;gap:12px;grid-template-columns:repeat(auto-fit,minmax(220px,1fr))}.word-table-detail label{display:block;font-size:.85rem;color:var(--text-muted);margin-bottom:6px}.word-table-detail-text{color:var(--text-secondary);font-size:.9rem;line-height:1.45;white-space:pre-wrap}.word-table-detail-sub{color:var(--text-muted);font-size:.85rem;margin-top:6px;white-space:pre-wrap}.word-table-textarea{width:100%;resize:vertical;padding:10px 12px;background:#001a2d;border:1px solid var(--border);border-radius:10px;color:var(--text-primary);font-size:.9rem}.word-table-row{border-bottom:1px solid var(--border)}.word-table-empty{text-align:center;color:var(--text-muted);padding:16px 0}.word-table-actions{display:flex;justify-content:flex-end;gap:6px;flex-wrap:wrap}.word-table-icon-btn{background:#002035;border:1px solid var(--border);border-radius:10px;padding:6px 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32px;text-align:center;box-shadow:var(--shadow-soft),inset 0 1px 0 var(--glass-highlight)}.results-emoji{font-size:4rem;margin-bottom:12px}.results-score{font-size:4.4rem;font-weight:900;background:linear-gradient(135deg,var(--primary-light),var(--accent));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;margin-bottom:18px}.results-stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:12px}.results-table{border:1px solid var(--border);border-radius:10px;overflow:hidden;margin-top:12px}.results-table-header,.results-table-row{display:grid;grid-template-columns:1fr 1fr 1fr;padding:10px 12px;gap:8px}.results-table-header{background:#ffffff0f;font-weight:700}.results-table-row:nth-child(2n){background:#ffffff08}.answer-correct{color:var(--success-color)}.answer-wrong{color:var(--danger-color)}.stat-item{background:#002035;border-radius:var(--radius-md);padding:14px}.analytics-container{max-width:1100px;margin:40px 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var(--border);border-radius:var(--radius-lg)}.empty-state-icon{font-size:4rem;margin-bottom:12px;opacity:.8}.select-wrapper{margin-bottom:18px}.select-wrapper label{display:block;margin-bottom:8px;font-weight:600;color:var(--text-secondary)}.select-wrapper select{width:100%;padding:12px 14px;background:#002035;border:1px solid var(--border);border-radius:var(--radius-md);color:var(--text-primary);font-size:1rem;cursor:pointer}.select-wrapper select:focus{outline:2px solid rgba(255,152,0,.3)}.modal-overlay{position:fixed;inset:0;background:#080c16a6;display:flex;align-items:center;justify-content:center;padding:20px;z-index:2000;-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px)}.modal-content{background:var(--surface);border-radius:var(--radius-lg);padding:24px;box-shadow:var(--shadow-strong);width:100%;border:1px solid var(--border)}.quiz-progress,.quiz-progress-bar{transition:width .3s ease}@media(max-width:768px){.navbar-content{flex-direction:row;align-items:center;justify-content:space-between}.stats-overview{grid-template-columns:repeat(2,1fr)}.home-container h1{font-size:2.4rem;text-align:left}.home-container>p{text-align:left}.navigation{grid-template-columns:1fr}.quiz-header{flex-direction:column;align-items:flex-start}.word-table-header,.word-table-row,.word-table-add-row{grid-template-columns:1fr}.word-table-actions{justify-content:flex-start}.navbar-links{width:auto;justify-content:flex-end;gap:6px}.quiz-container{padding:0 16px 30px}.quiz-card{padding:20px}.navbar{padding:10px 12px}.navbar-brand{font-size:1.1rem;gap:6px}.navbar-center{display:none}.nav-link{padding:8px 10px;font-size:.9rem}.option-btn{padding:12px;font-size:.9rem;gap:10px;background:#29b6f61a}.option-letter{width:28px;height:28px}}@media(max-width:540px){.stats-overview{grid-template-columns:1fr;max-width:100%}.navigation{grid-template-columns:1fr}.home-container{padding:28px 14px 40px}.home-container h1,.home-container>p{text-align:center}}::-webkit-scrollbar{width:9px}::-webkit-scrollbar-track{background:#002035}::-webkit-scrollbar-thumb{background:#6b7280;border-radius:10px}.question-text-row{display:flex;align-items:center;gap:8px}.question-speak-btn{background:#ffffff14;border:1px solid rgba(255,255,255,.15);color:#fff;padding:6px 10px;border-radius:10px;cursor:pointer;transition:all .15s ease}.question-speak-btn:hover{background:#ffffff29}.toggle-shell{width:52px;height:28px;border-radius:16px;padding:4px;box-sizing:border-box;transition:all .25s ease;display:flex;align-items:center}.toggle-shell.enabled{background:linear-gradient(90deg,var(--accent-dark),var(--accent));box-shadow:0 0 16px var(--accent-glow)}.toggle-shell.disabled{background:#ffffff14;opacity:.5}.toggle-knob{width:20px;height:20px;border-radius:50%;background:#fff;transition:all .25s ease;box-shadow:0 2px 8px #0000004d}.toggle-shell.enabled .toggle-knob{transform:translate(24px);background:#fff}.selectable-text{line-height:1.5}.selectable-word{cursor:pointer;padding:2px 3px;border-radius:6px;transition:background .15s ease,color .15s ease}.selectable-word:hover{background:#c1121f26;color:var(--accent-light)}.modal-backdrop{position:fixed;inset:0;background:#0009;backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);display:flex;align-items:center;justify-content:center;z-index:2000;padding:16px}.modal-card{background:var(--glass-bg);backdrop-filter:blur(var(--glass-blur));-webkit-backdrop-filter:blur(var(--glass-blur));border:1px solid var(--glass-border);border-radius:var(--radius-lg);padding:20px;max-width:360px;width:100%;box-shadow:var(--shadow-strong),inset 0 1px 0 var(--glass-highlight)}.type-answer-card{background:var(--glass-bg);backdrop-filter:blur(var(--glass-blur));-webkit-backdrop-filter:blur(var(--glass-blur));border:1px solid var(--glass-border);border-radius:var(--radius-lg);padding:18px;box-shadow:var(--shadow-soft),inset 0 1px 0 var(--glass-highlight);display:flex;flex-direction:column;gap:14px}.type-question{display:flex;flex-direction:column;gap:6px}.type-question .type-label{font-size:.9rem;color:var(--text-secondary);letter-spacing:.2px}.type-question .type-text{font-size:1.15rem;font-weight:700}.type-input-row{display:flex;gap:10px}.type-input{flex:1;padding:14px 16px;border-radius:12px;border:1px solid var(--border);background:#0b1224;color:var(--text)}.type-result{background:#4caf5014;border:1px solid rgba(76,175,80,.25);border-radius:12px;padding:10px 12px}.type-synonyms{margin-top:4px;color:var(--text-secondary)}.loading-spinner{display:flex;align-items:center;justify-content:center;gap:12px;font-size:1.1rem;color:var(--text-secondary)}.loading-spinner:before{content:"";width:24px;height:24px;border:3px solid var(--glass-border);border-top-color:var(--accent);border-radius:50%;animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}.loading-spinner:before{animation:none;border-top-color:var(--accent)}body:before{display:none}}.quiz-card,.option-btn,.nav-link,.btn{transform:translateZ(0);backface-visibility:hidden}.quiz-container,.home-container,.wordlist-grid{contain:layout style}