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8px;display:inline-flex}.level-a1{color:#15803d;background:#dcfce7}.level-a2{color:#0e7490;background:#cffafe}.level-b1{color:#1d4ed8;background:#dbeafe}.level-b2{color:#5b21b6;background:#ede9fe}.level-c1{color:#6b21a8;background:#f3e8ff}.level-c2{color:#92400e;background:#fef3c7}.btn-primary{background:var(--navy);color:var(--white);border-radius:var(--radius-md);font-family:var(--font-body);letter-spacing:.02em;cursor:pointer;transition:all .18s var(--ease-out);border:none;justify-content:center;align-items:center;gap:6px;padding:11px 22px;font-size:14px;font-weight:600;text-decoration:none;display:inline-flex}.btn-primary:hover{background:var(--navy-muted);transform:translateY(-1px);box-shadow:0 4px 12px #0b1d3a40}.btn-primary:active{transform:translateY(0)}.btn-primary:disabled{opacity:.45;cursor:not-allowed;box-shadow:none;transform:none}.btn-secondary{color:var(--text-primary);border:1px solid var(--border-medium);border-radius:var(--radius-md);font-family:var(--font-body);cursor:pointer;transition:all .18s var(--ease-out);background:0 0;justify-content:center;align-items:center;gap:6px;padding:11px 22px;font-size:14px;font-weight:500;text-decoration:none;display:inline-flex}.btn-secondary:hover{background:var(--surface-subtle);border-color:var(--border-strong)}.btn-danger{color:#ffffff73;border-radius:var(--radius-sm);font-family:var(--font-body);cursor:pointer;text-align:left;background:0 0;border:none;align-items:center;gap:10px;width:100%;padding:10px 14px;font-size:13.5px;font-weight:500;transition:all .18s;display:flex}.btn-danger:hover{color:#ff8090;background:#c8102e26}.input{border:1px solid var(--border-medium);border-radius:var(--radius-md);width:100%;font-family:var(--font-body);color:var(--text-primary);background:var(--white);outline:none;padding:12px 16px;font-size:14px;transition:border-color .18s,box-shadow .18s}.input:focus{border-color:var(--navy);box-shadow:0 0 0 3px #0b1d3a14}.input::placeholder{color:var(--text-muted)}.quiz-option{text-align:left;border:1.5px solid var(--border-light);border-radius:var(--radius-md);background:var(--white);width:100%;font-family:var(--font-body);color:var(--text-primary);cursor:pointer;transition:all .15s var(--ease-out);align-items:center;gap:12px;padding:14px 18px;font-size:14px;font-weight:500;display:flex}.quiz-option:hover:not(:disabled){border-color:var(--navy);background:#0b1d3a08;transform:translate(2px)}.quiz-option.correct{color:#15803d;background:#f0fdf4;border-color:#16a34a}.quiz-option.wrong{border-color:var(--red);color:var(--red);background:#fff5f6}.quiz-option.dimmed{opacity:.38;border-color:var(--border-light)}.option-letter{letter-spacing:0;border:1.5px solid;border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;width:26px;height:26px;font-size:11px;font-weight:700;display:flex}.progress-track{background:var(--border-light);border-radius:2px;height:4px;overflow:hidden}.progress-fill{background:var(--navy);height:100%;transition:width .5s var(--ease-out);border-radius:2px}.progress-fill.gold{background:var(--gold)}.progress-fill.red{background:var(--red)}.progress-fill.green{background:#16a34a}.progress-fill.level-a1{background:var(--level-a1)}.progress-fill.level-a2{background:var(--level-a2)}.progress-fill.level-b1{background:var(--level-b1)}.progress-fill.level-b2{background:var(--level-b2)}.progress-fill.level-c1{background:var(--level-c1)}.progress-fill.level-c2{background:var(--level-c2)}.page-header{margin-bottom:32px}.page-title{font-family:var(--font-display);color:var(--text-primary);margin:0 0 4px;font-size:26px;font-weight:700}.page-subtitle{color:var(--text-muted);margin:0;font-size:14px;font-weight:400}.section-label{letter-spacing:.1em;text-transform:uppercase;color:var(--text-muted);margin:0 0 12px;font-size:10.5px;font-weight:700}.explanation-box{border-left:3px solid var(--navy);border-radius:0 var(--radius-sm) var(--radius-sm) 0;color:var(--text-secondary);background:#0b1d3a0a;padding:12px 14px;font-size:13px;line-height:1.6}.explanation-box strong{color:var(--text-primary);font-weight:600}.tab-bar{background:var(--surface-subtle);border-radius:var(--radius-md);gap:4px;padding:4px;display:flex}.tab-btn{border-radius:var(--radius-sm);color:var(--text-muted);cursor:pointer;font-size:13px;font-weight:600;font-family:var(--font-body);background:0 0;border:none;flex:1;padding:8px 12px;transition:all .15s}.tab-btn.active{background:var(--white);color:var(--text-primary);box-shadow:var(--shadow-sm)}.vocab-card{border:2px solid var(--border-light);border-radius:var(--radius-xl);text-align:center;background:var(--white);box-shadow:var(--shadow-md);padding:36px 32px}.vocab-word{font-family:var(--font-display);color:var(--navy);margin:0 0 6px;font-size:36px;font-weight:700}.vocab-translation{color:var(--text-secondary);margin:0 0 24px;font-size:18px;font-weight:400}.vocab-example{background:var(--surface-subtle);border-radius:var(--radius-md);text-align:left;padding:14px 16px}.grammar-table{border-collapse:collapse;width:100%;font-size:13.5px}.grammar-table th{text-align:left;letter-spacing:.08em;text-transform:uppercase;color:var(--text-muted);background:var(--surface-subtle);border-bottom:1px solid var(--border-light);padding:10px 14px;font-size:10.5px;font-weight:700}.grammar-table th:first-child{border-radius:var(--radius-sm) 0 0 0}.grammar-table th:last-child{border-radius:0 var(--radius-sm) 0 0}.grammar-table td{border-bottom:1px solid var(--border-light);color:var(--text-primary);padding:10px 14px}.grammar-table td:first-child{color:var(--navy);font-weight:600}.grammar-table tr:last-child td{border-bottom:none}.grammar-table tr:nth-child(2n) td{background:#0b1d3a05}.speaking-card{border:2px solid var(--border-light);border-radius:var(--radius-lg);padding:24px;transition:border-color .2s}.speaking-card.listening{border-color:var(--navy);background:#0b1d3a08}.speaking-card.success{background:#f0fdf4;border-color:#16a34a}.speaking-card.partial{background:#fffbeb;border-color:#d97706}.speaking-card.error{border-color:var(--red);background:#fff5f6}.alert{border-radius:var(--radius-md);padding:12px 16px;font-size:13.5px;font-weight:500}.alert-error{color:var(--red);background:#fff5f6;border:1px solid #c8102e33}.alert-success{color:#15803d;background:#f0fdf4;border:1px solid #16a34a33}.alert-info{color:var(--navy);border:1px solid var(--border-medium);background:#0b1d3a0d}.results-screen{text-align:center;background:var(--white);border-radius:var(--radius-xl);border:1px solid var(--border-light);box-shadow:var(--shadow-lg);padding:48px 32px}.results-score{font-family:var(--font-display);margin:16px 0 8px;font-size:72px;font-weight:700;line-height:1}.results-score.pass{color:#16a34a}.results-score.fail{color:var(--red)}.auth-container{background:var(--cream);justify-content:center;align-items:center;min-height:100vh;padding:24px;display:flex;position:relative;overflow:hidden}.auth-container:before{content:"";background:linear-gradient(to right, var(--navy) 33%, var(--white) 33% 66%, var(--red) 66%);height:4px;position:fixed;top:0;left:0;right:0}.auth-card{background:var(--white);border-radius:var(--radius-xl);width:100%;max-width:420px;box-shadow:var(--shadow-lg);border:1px solid var(--border-light);padding:40px}.auth-logo{font-family:var(--font-display);color:var(--navy);text-align:center;margin-bottom:4px;font-size:26px;font-weight:700}.auth-tagline{text-align:center;color:var(--text-muted);margin-bottom:32px;font-size:13px}.form-label{color:var(--text-primary);letter-spacing:.01em;margin-bottom:6px;font-size:12.5px;font-weight:600;display:block}.divider{background:var(--border-light);height:1px;margin:20px 0}.text-muted{color:var(--text-muted)}.text-gold{color:var(--gold)}.text-red{color:var(--red)}.text-navy{color:var(--navy)}.text-green{color:#16a34a}.tricolore-line{background:linear-gradient(to right, var(--navy) 33%, var(--white) 33% 66%, var(--red) 66%);border:1px solid var(--border-light);border-radius:2px;width:48px;height:3px;margin-bottom:20px}@keyframes fadeIn{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}@keyframes pulse-dot{0%,to{opacity:1}50%{opacity:.4}}.animate-fade-in{animation:fadeIn .3s var(--ease-out) both}.listening-dot{background:var(--red);border-radius:50%;width:8px;height:8px;animation:1s ease-in-out infinite pulse-dot}::-webkit-scrollbar{width:5px}::-webkit-scrollbar-track{background:0 0}::-webkit-scrollbar-thumb{background:var(--border-medium);border-radius:3px}::-webkit-scrollbar-thumb:hover{background:var(--border-strong)}@media (max-width:768px){.dashboard-layout{flex-direction:column!important}.sidebar{display:none!important}.main-content{width:100%!important;margin-left:0!important;padding:16px!important}.page-header{margin-bottom:16px!important;padding:16px!important}.page-title{font-size:22px!important}.grid,[style*=grid-template-columns]{grid-template-columns:1fr!important}table{white-space:nowrap;display:block;overflow-x:auto}.btn-row{flex-direction:column!important;gap:8px!important}.quiz-option{padding:12px 14px!important;font-size:14px!important}.tab-bar{white-space:nowrap!important;-webkit-overflow-scrolling:touch!important;overflow-x:auto!important}.vocab-card{padding:24px 20px!important}.vocab-word{font-size:32px!important}.results-screen{padding:32px 20px!important}.leaderboard-row{gap:10px!important;padding:12px 14px!important}.profile-grid{grid-template-columns:1fr!important}}@media (max-width:480px){.page-title{font-size:19px!important}.card{border-radius:12px!important;padding:16px!important}.btn-primary,.btn-secondary{padding:11px 18px!important;font-size:13px!important}.progress-label{font-size:11px!important}.flashcard-front,.flashcard-back{min-height:200px!important;padding:28px 20px!important}.flashcard-word{font-size:28px!important}}@property --tw-rotate-x{syntax:"*";inherits:false}@property --tw-rotate-y{syntax:"*";inherits:false}@property --tw-rotate-z{syntax:"*";inherits:false}@property --tw-skew-x{syntax:"*";inherits:false}@property --tw-skew-y{syntax:"*";inherits:false}@property --tw-space-y-reverse{syntax:"*";inherits:false;initial-value:0}@property --tw-border-style{syntax:"*";inherits:false;initial-value:solid}@property --tw-font-weight{syntax:"*";inherits:false}@property --tw-ordinal{syntax:"*";inherits:false}@property --tw-slashed-zero{syntax:"*";inherits:false}@property --tw-numeric-figure{syntax:"*";inherits:false}@property --tw-numeric-spacing{syntax:"*";inherits:false}@property --tw-numeric-fraction{syntax:"*";inherits:false}@property --tw-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-shadow-color{syntax:"*";inherits:false}@property --tw-shadow-alpha{syntax:"<percentage>";inherits:false;initial-value:100%}@property --tw-inset-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-inset-shadow-color{syntax:"*";inherits:false}@property --tw-inset-shadow-alpha{syntax:"<percentage>";inherits:false;initial-value:100%}@property --tw-ring-color{syntax:"*";inherits:false}@property --tw-ring-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-inset-ring-color{syntax:"*";inherits:false}@property --tw-inset-ring-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-ring-inset{syntax:"*";inherits:false}@property --tw-ring-offset-width{syntax:"<length>";inherits:false;initial-value:0}@property --tw-ring-offset-color{syntax:"*";inherits:false;initial-value:#fff}@property --tw-ring-offset-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-outline-style{syntax:"*";inherits:false;initial-value:solid}@property --tw-blur{syntax:"*";inherits:false}@property --tw-brightness{syntax:"*";inherits:false}@property --tw-contrast{syntax:"*";inherits:false}@property --tw-grayscale{syntax:"*";inherits:false}@property --tw-hue-rotate{syntax:"*";inherits:false}@property --tw-invert{syntax:"*";inherits:false}@property --tw-opacity{syntax:"*";inherits:false}@property --tw-saturate{syntax:"*";inherits:false}@property --tw-sepia{syntax:"*";inherits:false}@property --tw-drop-shadow{syntax:"*";inherits:false}@property --tw-drop-shadow-color{syntax:"*";inherits:false}@property --tw-drop-shadow-alpha{syntax:"<percentage>";inherits:false;initial-value:100%}@property --tw-drop-shadow-size{syntax:"*";inherits:false}@property --tw-ease{syntax:"*";inherits:false}