*{margin:0;padding:0;box-sizing:border-box}:root{--primary: #0f766e;--primary-light: #5eead4;--primary-dark: #115e59;--primary-glow: rgba(20, 184, 166, .22);--accent: #e11d48;--accent-light: #fb7185;--accent-dark: #9f1239;--accent-glow: rgba(225, 29, 72, .22);--success: #22c55e;--success-glow: rgba(34, 197, 94, .3);--danger: #ef4444;--danger-glow: rgba(239, 68, 68, .2);--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: #0b0f12;--bg-elevated: #11171b;--surface: #171e23;--surface-alt: #13191d;--glass-bg: rgba(23, 30, 35, .94);--glass-border: rgba(148, 163, 184, .16);--glass-highlight: rgba(255, 255, 255, .04);--glass-blur: 12px;--border: rgba(148, 163, 184, .16);--border-color: var(--border);--text-primary: #f8fafc;--text-secondary: #c6d0d7;--text-muted: #8fa0ab;--shadow-soft: 0 8px 24px rgba(0, 0, 0, .24);--shadow-strong: 0 18px 40px rgba(0, 0, 0, .34);--shadow-glow: 0 0 40px var(--primary-glow);--radius-sm: 6px;--radius-md: 8px;--radius-lg: 8px;--radius-xl: 8px}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;color-scheme:dark}.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:#11171bf5;border-bottom:1px solid var(--glass-border);position:sticky;top:0;z-index:1000;padding:9px 18px;backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px)}.navbar-content{max-width:1200px;margin:0 auto;display:flex;justify-content:space-between;align-items:center;gap:20px}.navbar-center{flex:0 0 auto;display:flex;justify-content:flex-start}.logo-text{min-height:42px;display:inline-flex;align-items:center;gap:10px;color:var(--text-primary);text-decoration:none;font-size:1rem;font-weight:800}.logo-mark{width:34px;height:34px;display:grid;place-items:center;border-radius:var(--radius-md);background:var(--primary);color:#fff}.navbar-links{flex:1;display:flex;justify-content:center;gap:4px}.nav-link{color:var(--text-secondary);text-decoration:none;font-weight:600;min-height:42px;padding:8px 11px;border-radius:var(--radius-sm);transition:background-color .2s ease,color .2s ease;display:inline-flex;align-items:center;gap:8px}.nav-link:hover,.nav-link.active{background:#14b8a61f;color:var(--primary-light)}.nav-icon{display:inline-flex;align-items:center;justify-content:center;color:var(--text-secondary)}.language-switcher{display:inline-flex;align-items:center;gap:4px;padding:4px;border:1px solid var(--glass-border);border-radius:var(--radius-md);background:var(--bg)}.language-switcher-btn{min-width:60px;height:34px;border:0;border-radius:var(--radius-sm);background:transparent;color:var(--text-secondary);font-size:.82rem;font-weight:700;cursor:pointer;display:inline-flex;align-items:center;justify-content:center;gap:6px}.language-switcher-btn.active{background:var(--surface);color:var(--text-primary);box-shadow:inset 0 0 0 1px #5eead447}.page-loader{min-height:55vh;display:grid;place-items:center;color:var(--text-secondary)}.language-gate{min-height:100vh;display:grid;place-items:center;padding:24px;background:var(--bg)}.language-gate-panel{width:min(720px,100%);padding:32px;border:1px solid var(--glass-border);border-radius:var(--radius-lg);background:var(--surface-alt);box-shadow:var(--shadow-soft)}.language-gate-mark{width:52px;height:52px;display:grid;place-items:center;margin-bottom:18px;border-radius:var(--radius-md);background:#14b8a624;color:var(--primary-light)}.language-gate-eyebrow{display:block;margin-bottom:8px;color:var(--primary-light);font-size:.78rem;font-weight:800;text-transform:uppercase}.language-gate h1{font-size:2rem;line-height:1.15;margin-bottom:10px}.language-gate p{color:var(--text-secondary);margin-bottom:24px}.language-gate-options{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:12px}.language-gate-option{min-height:92px;padding:18px;border:1px solid var(--glass-border);border-radius:var(--radius-md);background:var(--surface);color:var(--text-primary);cursor:pointer;display:flex;align-items:center;gap:14px;text-align:left}.language-gate-option:hover{border-color:var(--primary);background:#14b8a614}.language-gate-flag{font-size:2rem;line-height:1}.language-gate-option strong,.language-gate-option small{display:block}.language-gate-option small{margin-top:2px;color:var(--text-secondary)}.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:background-color .2s ease,border-color .2s ease,color .2s ease,transform .2s ease;text-decoration:none}.btn-primary{background:var(--primary);color:#fff;box-shadow:0 8px 20px var(--primary-glow)}.btn-primary:hover{transform:translateY(-2px);background:#0d9488}.btn-secondary{background:var(--accent);color:#fff;box-shadow:0 8px 20px var(--accent-glow)}.btn-secondary:hover{transform:translateY(-2px);background:var(--accent-light)}.btn-danger{background:var(--danger);color:#fff;box-shadow:0 8px 20px var(--danger-glow)}.btn-danger:hover{transform:translateY(-2px);background:#f87171}.btn-outline{background:transparent;border:1px solid var(--glass-border);color:var(--text-primary)}.btn-outline:hover{border-color:var(--primary);color:var(--primary-light);background:#14b8a60f}.btn-sm{padding:8px 14px;font-size:.95rem}.btn-lg{padding:14px 22px;font-size:1.05rem}.home-container{max-width:1180px;margin:0 auto;padding:42px 24px 64px}.dashboard-intro{display:grid;grid-template-columns:minmax(0,1.45fr) minmax(280px,.75fr);align-items:center;gap:48px;padding:18px 0 38px;border-bottom:1px solid var(--border)}.dashboard-intro-copy h1{max-width:660px;margin:10px 0 12px;color:var(--text-primary);font-size:2.35rem;line-height:1.16;font-weight:850}.dashboard-intro-copy>p{max-width:650px;margin-bottom:24px;color:var(--text-secondary);font-size:1.02rem}.dashboard-eyebrow{display:inline-flex;align-items:center;gap:7px;color:var(--primary-light);font-size:.78rem;font-weight:800;text-transform:uppercase}.dashboard-actions{display:flex;flex-wrap:wrap;gap:10px}.active-list-panel{min-height:188px;padding:20px;border:1px solid var(--border);border-left:3px solid var(--primary);border-radius:var(--radius-lg);background:var(--surface-alt);box-shadow:var(--shadow-soft)}.active-list-panel-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px;color:var(--text-muted);font-size:.78rem;font-weight:800;text-transform:uppercase}.active-list-panel-header svg{color:var(--primary-light)}.active-list-panel>strong{display:block;margin-bottom:4px;color:var(--text-primary);font-size:1.18rem}.active-list-panel>p,.active-list-panel>small{color:var(--text-muted)}.active-list-panel>p{margin-bottom:18px;font-size:.9rem}.active-list-progress{width:100%;height:6px;margin-bottom:8px;overflow:hidden;border-radius:3px;background:#94a3b824}.active-list-progress>span{display:block;height:100%;border-radius:inherit;background:var(--primary-light)}.stats-overview{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px;margin:24px 0 46px}.stat-box{display:grid;grid-template-columns:42px 1fr;align-items:center;column-gap:12px;min-height:92px;padding:14px;border:1px solid var(--glass-border);border-radius:var(--radius-lg);background:var(--surface-alt)}.stat-box:hover{border-color:#5eead44d}.stat-box .stat-icon{grid-row:span 2;width:42px;height:42px;display:grid;place-items:center;border-radius:var(--radius-md);background:#14b8a61a;color:var(--primary-light)}.stat-box .stat-value{align-self:end;color:var(--text-primary);font-size:1.55rem;font-weight:800;line-height:1.1}.stat-box .stat-label{align-self:start;color:var(--text-muted);font-size:.82rem}.dashboard-section-heading{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:18px}.dashboard-section-heading h2{margin-top:4px;color:var(--text-primary);font-size:1.45rem}.average-chip{display:inline-flex;align-items:center;gap:7px;color:var(--text-muted);font-size:.86rem}.navigation{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}.nav-card{min-height:210px;display:flex;flex-direction:column;padding:22px;border:1px solid var(--glass-border);border-radius:var(--radius-xl);background:var(--surface-alt);box-shadow:var(--shadow-soft);text-decoration:none;color:var(--text-primary);transition:transform .2s ease,border-color .2s ease,background-color .2s ease}.nav-card:hover{transform:translateY(-2px);border-color:#5eead457;background:var(--surface)}.nav-card-icon{width:42px;height:42px;display:grid;place-items:center;margin-bottom:20px;border-radius:var(--radius-md);background:#e11d481a;color:var(--accent-light)}.nav-card-title{margin-bottom:6px;color:var(--text-primary);font-size:1.08rem;font-weight:750}.nav-card-description{color:var(--text-secondary);font-size:.9rem}.nav-card-footer{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:auto;padding-top:18px;color:var(--primary-light);font-size:.84rem;font-weight:700}.getting-started{max-width:700px;margin:34px 0 0;text-align:left;background:var(--surface-alt);border:1px solid var(--glass-border);border-radius:var(--radius-lg);padding:24px 24px 10px;box-shadow:var(--shadow-soft)}.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:var(--primary);color:#fff;border-radius:var(--radius-sm);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:var(--surface-alt);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:var(--surface-alt);border:1px solid var(--border);border-radius:var(--radius-lg);text-align:left}.example-title{font-weight:700}.example-header,.example-actions,.word-table-detail-heading{display:flex;align-items:center}.example-header,.word-table-detail-heading{justify-content:space-between;gap:12px}.example-actions{flex:0 0 auto;gap:8px}.example-title,.word-table-detail-heading>span{display:inline-flex;align-items:center;flex-wrap:wrap;gap:7px}.example-level-badge{display:inline-flex;align-items:center;min-height:22px;padding:2px 7px;border:1px solid rgba(94,234,212,.28);border-radius:var(--radius-sm);background:#14b8a61a;color:var(--primary-light);font-size:.7rem;font-weight:800}.example-speak-btn{width:36px;height:36px;display:inline-grid;place-items:center;flex:0 0 auto;padding:0;border:1px solid var(--border);border-radius:var(--radius-md);background:transparent;color:var(--primary-light);cursor:pointer;transition:border-color .2s ease,background-color .2s ease}.example-speak-btn:hover{border-color:var(--primary);background:#14b8a614}.example-inline-level{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:10px;padding-top:10px;border-top:1px solid var(--border);color:var(--text-muted);font-size:.8rem;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{width:100%;min-height:116px;background:var(--surface-alt);border:1px solid var(--glass-border);border-radius:var(--radius-lg);padding:18px 14px;text-align:center;color:var(--text-primary);font:inherit;cursor:pointer;transition:transform .2s ease,border-color .2s ease,background-color .2s ease}.quiz-type-card:hover{border-color:var(--primary);transform:translateY(-2px)}.quiz-type-card.selected{border-color:var(--primary-light);background:#14b8a61a}.quiz-type-card .type-icon{font-size:2.2rem;display:block;margin-bottom:10px}.quiz-type-card .quiz-type-icon{display:inline-flex;margin-bottom:8px;color:var(--primary-light)}.quiz-type-label{display:block;color:var(--text-primary);font-weight:600}.quiz-setting-row{width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:12px;padding:14px;border:1px solid var(--border);border-radius:var(--radius-md);background:var(--surface-alt);color:var(--text-primary);font:inherit;text-align:left;cursor:pointer;transition:border-color .2s ease,background-color .2s ease}.quiz-setting-row:hover:not(:disabled){border-color:#5eead457;background:var(--surface)}.quiz-setting-row:disabled{cursor:not-allowed;opacity:.45}.quiz-setting-row-compact{justify-content:flex-start;margin-top:10px}.quiz-setting-copy{min-width:0;display:flex;flex-direction:column;gap:3px}.quiz-setting-copy strong{font-size:.95rem}.quiz-setting-description{color:var(--text-secondary);font-size:.88rem}.quiz-setting-difficult{margin-top:20px;margin-bottom:30px}.quiz-setting-difficult.is-active{border-color:var(--danger);background:#ef44441a}.example-level-fieldset{min-width:0;margin:0 0 12px;padding:13px 14px 14px;border:1px solid var(--border);border-radius:var(--radius-md);background:var(--surface-alt)}.example-level-fieldset:disabled{opacity:.45}.example-level-fieldset legend{padding:0 6px;color:var(--text-primary);font-size:.88rem;font-weight:700}.example-level-fieldset p{margin-top:9px;color:var(--text-muted);font-size:.8rem}.example-level-segments{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:4px;padding:4px;border:1px solid var(--border);border-radius:var(--radius-md);background:var(--bg)}.example-level-segments button{min-height:38px;padding:7px 12px;border:0;border-radius:var(--radius-sm);background:transparent;color:var(--text-secondary);font:inherit;font-size:.84rem;font-weight:800;cursor:pointer}.example-level-segments button.active{background:var(--surface);color:var(--primary-light);box-shadow:inset 0 0 0 1px #5eead447}.example-level-segments button:disabled{cursor:not-allowed}.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{padding:0;margin-bottom:22px;text-align:center}.upload-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:16px;max-width:none;margin:0 auto}.upload-option{background:var(--surface-alt);border:1px solid var(--glass-border);border-radius:var(--radius-lg);padding:20px;transition:border-color .2s ease,background-color .2s ease}.upload-option:hover{border-color:#5eead44d;background:var(--surface)}.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{display:flex;align-items:center;gap:8px;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{width:42px;height:42px;display:grid;place-items:center;margin:0 auto;border-radius:var(--radius-md);background:#14b8a61a;color:var(--primary-light)}.file-input-wrapper input[type=text],.input-field{width:100%;padding:12px 14px;background:var(--surface-alt);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(20,184,166,.22);border-color:var(--primary)}.file-label{display:inline-flex;align-items:center;gap:10px;padding:12px 20px;background:var(--primary);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);background:#0d9488}.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:var(--surface-alt);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:var(--surface-alt);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:var(--surface-alt)}.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}.bulk-example-level{display:flex;align-items:center;justify-content:space-between;gap:12px;margin:8px 0 10px;padding-bottom:10px;border-bottom:1px solid var(--border);color:var(--text-muted);font-size:.82rem;font-weight:700}.example-level-segments.compact{width:176px;flex:0 0 auto}.example-level-segments.compact button{min-height:32px;padding:5px 8px;font-size:.76rem}.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:var(--surface-alt);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:var(--surface-alt);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:var(--surface-alt);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:var(--bg)}.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:var(--bg)}.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:var(--surface-alt);border:1px solid var(--border);border-radius:10px;padding:6px 8px;cursor:pointer;color:var(--text-secondary);font-size:.78rem;line-height:1}.word-table-icon-btn.save{color:var(--success)}.word-table-icon-btn.cancel,.word-table-icon-btn.delete{color:var(--danger)}.word-table-icon-btn.star{color:var(--warning)}.word-table-icon-btn.sound,.word-table-icon-btn.edit{color:var(--text-secondary)}.word-table-icon-btn.translate{color:var(--accent);border-color:#ff980059}.word-table-icon-btn.example,.word-table-icon-btn.definition{color:var(--accent);border-color:#29b6f659}@media(max-width:900px){.word-list-title-section{flex-direction:column;align-items:stretch}.word-list-toolbar{align-items:stretch}.word-list-actions{justify-content:flex-start}}.results-container{max-width:780px;margin:40px auto;padding:0 20px}.results-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:40px 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:var(--surface-alt);border-radius:var(--radius-md);padding:14px}.analytics-container{max-width:1100px;margin:40px auto;padding:0 20px 50px}.analytics-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(320px,1fr));gap:16px}.analytics-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-lg);padding:20px;box-shadow:var(--shadow-soft)}.analytics-stats-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}.analytics-stat{text-align:center;padding:12px;background:var(--surface-alt);border-radius:var(--radius-md)}.analytics-stat .value{font-size:1.6rem;font-weight:800;color:var(--primary-strong)}.analytics-stat .label{color:var(--text-muted);font-size:.9rem}.duplicate-panel{margin-top:16px;padding:14px;background:#ffc1070d;border:1px solid rgba(255,193,7,.2);border-radius:var(--radius-md)}.duplicate-panel h4{margin:0 0 12px;font-size:.95rem;color:var(--warning)}.duplicate-list{display:grid;gap:8px;max-height:250px;overflow-y:auto}.duplicate-item{padding:10px;background:#ffffff08;border-radius:10px}.duplicate-word{font-weight:700;margin-bottom:6px}.duplicate-occ{display:flex;gap:6px;flex-wrap:wrap;color:var(--text-secondary)}.duplicate-chip{background:#ffc1071f;border:1px solid rgba(255,193,7,.35);padding:3px 8px;border-radius:12px;font-size:.85rem}.merge-list{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:8px;max-height:200px;overflow-y:auto}.merge-item{display:flex;align-items:center;gap:8px;padding:10px 12px;background:#ffffff08;border:1px solid var(--border);border-radius:10px;cursor:pointer;transition:all .2s ease}.merge-item:hover{border-color:var(--accent);background:#c1121f0d}.merge-item input[type=checkbox]{accent-color:var(--accent)}.empty-state{text-align:center;padding:50px 20px;background:var(--surface-alt);border:1px dashed 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:var(--surface-alt);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{display:grid;grid-template-columns:minmax(0,1fr) auto;align-items:center;gap:12px}.stats-overview{grid-template-columns:repeat(2,1fr)}.dashboard-intro{grid-template-columns:1fr;gap:24px}.dashboard-intro-copy h1{font-size:2.1rem}.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{position:fixed;right:0;bottom:0;left:0;z-index:1200;width:100%;min-height:64px;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:2px;padding:6px max(8px,env(safe-area-inset-right)) calc(6px + env(safe-area-inset-bottom)) max(8px,env(safe-area-inset-left));border-top:1px solid var(--border);background:#11171bfa;box-shadow:0 -8px 24px #0000003d}.language-switcher{justify-self:end}.language-switcher-btn{min-width:50px;height:34px}.quiz-container{padding:0 16px 30px}.quiz-card{padding:20px}.navbar{padding:8px 14px;backdrop-filter:none;-webkit-backdrop-filter:none}.navbar-center{display:flex}.nav-link{min-width:0;min-height:50px;flex-direction:column;justify-content:center;gap:2px;padding:4px 2px;font-size:.72rem}.nav-icon svg{width:20px;height:20px}.navbar+main{padding-bottom:72px}.option-btn{padding:12px;font-size:.9rem;gap:10px;background:#29b6f61a}.option-letter{width:28px;height:28px}}@media(max-width:540px){.navbar-content{grid-template-columns:minmax(0,1fr) auto}.language-switcher{width:auto}.language-gate-panel{padding:24px}.stats-overview{grid-template-columns:repeat(2,minmax(0,1fr));max-width:100%}.navigation{grid-template-columns:1fr}.home-container{padding:24px 14px 44px}.dashboard-intro{padding-top:8px}.dashboard-intro-copy h1{font-size:1.85rem}.dashboard-actions .btn{width:100%}.active-list-panel{min-height:170px}.stat-box{grid-template-columns:34px 1fr;column-gap:9px;min-height:84px;padding:11px}.stat-box .stat-icon{width:34px;height:34px}.stat-box .stat-value{font-size:1.35rem}.stat-box .stat-label{font-size:.74rem}.dashboard-section-heading{align-items:flex-start;flex-direction:column}.nav-card{min-height:190px}.example-header{align-items:flex-start;flex-wrap:wrap}.example-actions{width:100%;justify-content:flex-end}.bulk-example-level{align-items:stretch;flex-direction:column}.example-inline-level{align-items:stretch;flex-direction:column;gap:6px}.example-level-segments.compact{width:100%}}.word-table-detail-heading{margin-bottom:6px;color:var(--text-muted);font-size:.85rem}.quiz-list-card{color:var(--text-primary);font:inherit;text-align:left;cursor:pointer}@media(max-width:360px){.logo-wordmark{display:none}}::-webkit-scrollbar{width:9px}::-webkit-scrollbar-track{background:var(--surface-alt)}::-webkit-scrollbar-thumb{background:#6b7280;border-radius:10px}.question-text-row{display:flex;align-items:center;gap:8px}.question-speak-btn{width:36px;height:36px;display:inline-grid;place-items:center;flex:0 0 auto;background:#ffffff14;border:1px solid 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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:0}.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:var(--bg);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 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