@import"https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&display=swap";*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}:root{--primary: #4361EE;--primary-dark: #3A56D4;--primary-light: #EEF2FF;--success: #22C55E;--success-light: #F0FDF4;--error: #EF4444;--error-light: #FEF2F2;--warning: #F59E0B;--warning-light: #FFFBEB;--bg: #F3F4F8;--surface: #FFFFFF;--text: #111827;--text-muted: #6B7280;--border: #E5E7EB;--radius-sm: 8px;--radius-md: 14px;--radius-lg: 20px;--shadow-sm: 0 1px 3px rgba(0,0,0,.08), 0 1px 2px rgba(0,0,0,.04);--shadow-md: 0 4px 16px rgba(0,0,0,.1), 0 2px 4px rgba(0,0,0,.06)}body{font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;background:var(--bg);color:var(--text);-webkit-font-smoothing:antialiased}#root{display:flex;flex-direction:column;height:100dvh;overflow:hidden}.app-header{background:#003082;color:#fff;padding:0 16px;height:58px;display:flex;align-items:center;gap:8px;flex-shrink:0;box-shadow:0 2px 8px #00000040}.app-header-brand{display:flex;flex-direction:column;align-items:flex-start;gap:1px}.app-header-logo-img{height:28px;object-fit:contain}.app-header-wordmark{font-size:9px;font-weight:700;color:#ffffffb3;letter-spacing:.4px;text-transform:uppercase}.header-picker-btn{width:36px;height:36px;border-radius:50%;background:#ffffff26;border:2px solid rgba(255,255,255,.3);color:#fff;cursor:pointer;display:flex;align-items:center;justify-content:center;font-family:inherit;transition:background .15s,border-color .15s;flex-shrink:0}.header-picker-btn:hover{background:#ffffff40;border-color:#ffffff8c}.header-dropdown{position:absolute;top:calc(100% + 10px);right:0;background:#fff;border-radius:14px;box-shadow:0 8px 32px #0000002e;min-width:170px;padding:6px 0;z-index:1000;border:1px solid rgba(0,0,0,.06)}.header-dropdown-title{padding:7px 16px 6px;font-size:10px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:#9ca3af;border-bottom:1px solid #F3F4F6;margin-bottom:4px}.header-dropdown-item{display:flex;align-items:center;gap:10px;width:100%;padding:10px 16px;background:none;border:none;cursor:pointer;text-align:left;font-size:14px;font-weight:500;color:#111827;font-family:inherit;transition:background .12s}.header-dropdown-item:hover{background:#f9fafb}.header-dropdown-item.active{background:#eef2ff;color:#003082;font-weight:700}.header-dropdown-item-icon{width:28px;display:flex;align-items:center;justify-content:center;flex-shrink:0}.tab-bar{display:flex;background:#fff;border-top:1px solid #E5E7EB;flex-shrink:0;padding:0}.tab-btn{flex:1;display:flex;flex-direction:column;align-items:center;gap:3px;padding:10px 4px 8px;background:none;border:none;border-top:3px solid transparent;cursor:pointer;font-size:10px;font-weight:600;color:#9ca3af;transition:color .15s,border-color .15s;font-family:inherit;letter-spacing:.2px}.tab-btn svg{width:22px;height:22px;stroke-width:1.75}.tab-btn.active{color:#003082;border-top-color:#003082;font-weight:700}.screen{flex:1;min-height:0;overflow-y:auto;padding:20px 16px}.screen-title{font-size:26px;font-weight:800;margin-bottom:4px;letter-spacing:-.5px}.screen-subtitle{font-size:14px;color:var(--text-muted);margin-bottom:20px}.input-label{display:block;font-size:13px;font-weight:600;color:var(--text-muted);margin-bottom:6px;text-transform:uppercase;letter-spacing:.4px}textarea,input[type=text]{width:100%;background:var(--surface);border:2px solid var(--border);border-radius:var(--radius-md);padding:14px 16px;font-size:15px;font-family:inherit;color:var(--text);resize:none;outline:none;transition:border-color .15s,box-shadow .15s;box-shadow:var(--shadow-sm)}textarea:focus,input[type=text]:focus{border-color:var(--primary);box-shadow:0 0 0 3px #4361ee1f}.btn{width:100%;padding:15px;border:none;border-radius:var(--radius-md);font-size:15px;font-weight:700;cursor:pointer;transition:transform .1s,box-shadow .1s,opacity .15s;font-family:inherit;letter-spacing:.2px;margin-top:12px}.btn:active{transform:scale(.98)}.btn:disabled{opacity:.55;cursor:not-allowed;transform:none}.btn-primary{background:var(--primary);color:#fff;box-shadow:0 4px 14px #4361ee66}.btn-primary:hover:not(:disabled){background:var(--primary-dark)}.btn-green{background:var(--success);color:#fff;box-shadow:0 4px 14px #22c55e59}.btn-green:hover:not(:disabled){background:#16a34a}.btn-secondary,.btn-outline{background:transparent;color:var(--primary);border:2px solid var(--primary);box-shadow:none}.btn-secondary:hover:not(:disabled),.btn-outline:hover:not(:disabled){background:var(--primary-light)}.direction-toggle{width:100%;display:flex;align-items:center;justify-content:center;gap:10px;background:var(--primary-light);border:2px solid #C7D2FE;border-radius:var(--radius-md);padding:13px 16px;cursor:pointer;font-family:inherit;font-size:14px;font-weight:600;color:var(--primary);margin-bottom:16px;transition:background .15s,border-color .15s}.direction-toggle:hover{background:#e0e7ff;border-color:var(--primary)}.direction-toggle svg{width:18px;height:18px;flex-shrink:0}.form-group{margin-bottom:12px}.result-card{background:var(--surface);border-radius:var(--radius-lg);padding:20px;margin-top:16px;box-shadow:var(--shadow-md);border:1.5px solid var(--border);animation:slideUp .2s ease}@keyframes slideUp{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}.result-label{font-size:11px;font-weight:700;text-transform:uppercase;letter-spacing:.8px;color:var(--text-muted);margin-bottom:8px}.result-text{font-size:16px;line-height:1.6}.result-card.correct{border-color:var(--success);background:var(--success-light)}.result-card.incorrect{border-color:var(--error);background:var(--error-light)}.badge{display:inline-flex;align-items:center;gap:6px;font-size:13px;font-weight:700;padding:5px 12px;border-radius:50px;margin-bottom:12px}.badge.correct{background:var(--success);color:#fff}.badge.incorrect{background:var(--error);color:#fff}.article-card{background:linear-gradient(135deg,#f59e0b,#d97706);border-radius:var(--radius-lg);padding:32px 20px;margin-top:16px;text-align:center;box-shadow:0 8px 24px #f59e0b59;animation:slideUp .2s ease}.article-big{font-size:64px;font-weight:800;color:#fff;line-height:1;margin-bottom:4px}.word-label{font-size:24px;font-weight:600;color:#ffffffe6;margin-bottom:16px}.explanation{font-size:14px;color:#ffffffd9;line-height:1.6;background:#00000026;border-radius:var(--radius-sm);padding:12px}.phrase-list{list-style:none;margin-top:16px;display:flex;flex-direction:column;gap:8px}.phrase-item{display:flex;align-items:center;background:var(--surface);border-radius:var(--radius-md);padding:14px 16px;box-shadow:var(--shadow-sm);border:1.5px solid var(--border);transition:box-shadow .15s}.phrase-item:hover{box-shadow:var(--shadow-md)}.phrase-content{flex:1}.phrase-text{font-size:15px;font-weight:600}.phrase-trans{font-size:13px;color:var(--text-muted);margin-top:2px}.delete-btn{background:var(--error-light);border:none;color:var(--error);font-size:14px;font-weight:700;cursor:pointer;padding:6px 10px;border-radius:var(--radius-sm);transition:background .15s}.delete-btn:hover{background:#fee2e2}.ask-screen{display:flex;flex-direction:column;overflow:hidden;padding-bottom:0}.ask-suggestions{margin-top:8px}.ask-suggestions-label{font-size:12px;font-weight:600;text-transform:uppercase;letter-spacing:.5px;color:var(--text-muted);margin-bottom:10px}.ask-suggestion-chip{display:block;width:100%;text-align:left;background:var(--surface);border:1.5px solid var(--border);border-radius:var(--radius-md);padding:12px 16px;font-size:14px;font-family:inherit;color:var(--primary);font-weight:500;cursor:pointer;margin-bottom:8px;transition:background .15s,border-color .15s}.ask-suggestion-chip:hover{background:var(--primary-light);border-color:var(--primary)}.ask-messages{flex:1;min-height:0;overflow-y:auto;display:flex;flex-direction:column;gap:12px;padding-bottom:12px}.ask-bubble{max-width:85%;padding:12px 16px;border-radius:var(--radius-lg);font-size:15px;line-height:1.55;animation:slideUp .15s ease;white-space:pre-wrap}.ask-bubble--user{background:var(--primary);color:#fff;border-bottom-right-radius:4px;align-self:flex-end}.ask-bubble--assistant{background:var(--surface);color:var(--text);border:1.5px solid var(--border);border-bottom-left-radius:4px;align-self:flex-start;box-shadow:var(--shadow-sm)}.ask-bubble--typing{display:flex;gap:5px;align-items:center;padding:16px}.ask-bubble--typing span{width:8px;height:8px;background:var(--text-muted);border-radius:50%;animation:bounce .9s infinite}.ask-bubble--typing span:nth-child(2){animation-delay:.15s}.ask-bubble--typing span:nth-child(3){animation-delay:.3s}@keyframes bounce{0%,60%,to{transform:translateY(0)}30%{transform:translateY(-6px)}}.ask-input-row{display:flex;gap:10px;padding:12px 16px;background:var(--surface);border-top:1px solid var(--border);flex-shrink:0}.ask-input-row input{flex:1;margin:0;border-radius:50px;padding:12px 18px}.ask-send-btn{width:46px;height:46px;border-radius:50%;background:var(--primary);border:none;color:#fff;cursor:pointer;display:flex;align-items:center;justify-content:center;flex-shrink:0;transition:background .15s,transform .1s}.ask-send-btn:hover:not(:disabled){background:var(--primary-dark)}.ask-send-btn:active{transform:scale(.92)}.ask-send-btn:disabled{opacity:.5;cursor:not-allowed}.pod-phrase-card{background:linear-gradient(135deg,#4361ee,#3a0ca3);border-radius:var(--radius-lg);padding:28px 24px;box-shadow:0 8px 24px #4361ee59;animation:slideUp .2s ease}.pod-label{font-size:11px;font-weight:700;text-transform:uppercase;letter-spacing:.8px;color:#ffffffa6;margin-bottom:10px}.pod-phrase{font-size:26px;font-weight:800;color:#fff;line-height:1.3;margin-bottom:10px;letter-spacing:-.3px}.pod-translation{font-size:15px;color:#fffc;font-weight:500}.pod-empty{display:flex;flex-direction:column;align-items:center;gap:14px;margin-top:48px;color:var(--text-muted);text-align:center;font-size:15px;line-height:1.5}.pod-empty-icon{font-size:52px}.speak-btn{display:inline-flex;align-items:center;justify-content:center;background:none;border:1.5px solid var(--border);border-radius:50%;width:34px;height:34px;cursor:pointer;color:var(--text-muted);flex-shrink:0;transition:color .15s,border-color .15s,background .15s}.speak-btn:hover{color:var(--primary);border-color:var(--primary)}.speak-btn.speaking{color:var(--error);border-color:var(--error);background:var(--error-light)}.result-card-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:8px}.chat-cursor{display:inline-block;width:2px;height:1em;background:currentColor;opacity:.7;animation:blink .7s step-end infinite;vertical-align:text-bottom}@keyframes blink{0%,to{opacity:.7}50%{opacity:0}}.mic-btn{display:inline-flex;align-items:center;justify-content:center;background:none;border:1.5px solid var(--border);border-radius:50%;width:34px;height:34px;cursor:pointer;color:var(--text-muted);flex-shrink:0;transition:color .15s,border-color .15s,background .15s}.mic-btn:hover{color:var(--primary);border-color:var(--primary)}.mic-btn.recording{color:var(--error);border-color:var(--error);background:var(--error-light);animation:pulse 1.2s ease-in-out infinite}@keyframes pulse{0%,to{box-shadow:0 0 #ef444466}50%{box-shadow:0 0 0 6px #ef444400}}.more-menu{flex:1;min-height:0;overflow-y:auto;background:var(--bg);padding:20px 16px 32px}.more-menu-title{font-size:28px;font-weight:800;letter-spacing:-.5px;margin-bottom:20px}.more-menu-section{margin-bottom:8px}.more-section-label{font-size:12px;font-weight:600;text-transform:uppercase;letter-spacing:.6px;color:var(--text-muted);margin:0 4px 6px}.more-menu-card{background:var(--surface);border-radius:14px;overflow:hidden;box-shadow:0 1px 4px #00000012;border:1px solid var(--border);margin-bottom:20px}.more-menu-item{display:flex;align-items:center;gap:14px;width:100%;padding:13px 16px;background:none;border:none;cursor:pointer;text-align:left;font-family:inherit;transition:background .12s}.more-menu-item:hover{background:#00000008}.more-menu-item:active{background:#0000000f}.more-icon-wrap{width:38px;height:38px;border-radius:9px;display:flex;align-items:center;justify-content:center;flex-shrink:0}.more-item-text{flex:1;display:flex;flex-direction:column;gap:2px}.more-item-label{font-size:15px;font-weight:600;color:var(--text)}.more-item-desc{font-size:12px;color:var(--text-muted)}.more-sub-header{display:flex;align-items:center;justify-content:space-between;background:var(--surface);border-bottom:1px solid var(--border);padding:0 8px;height:48px;flex-shrink:0}.more-back-btn{display:flex;align-items:center;gap:4px;background:none;border:none;cursor:pointer;font-size:15px;font-weight:500;color:var(--primary);font-family:inherit;padding:8px;border-radius:8px;transition:background .12s;min-width:64px}.more-back-btn:hover{background:var(--primary-light)}.more-sub-title{font-size:15px;font-weight:700;color:var(--text)}.home-hero{display:flex;align-items:center;justify-content:space-between;gap:16px;background:linear-gradient(135deg,#4361ee,#3a0ca3);border-radius:var(--radius-lg);padding:22px 24px;margin-bottom:24px;box-shadow:0 8px 24px #4361ee59;animation:slideUp .2s ease}.home-streak{display:flex;flex-direction:column;align-items:flex-start;gap:2px}.home-streak-flame{font-size:30px;line-height:1.1}.home-streak-num{font-size:30px;font-weight:800;color:#fff;letter-spacing:-.5px;line-height:1.1}.home-streak-label{font-size:11px;font-weight:700;text-transform:uppercase;letter-spacing:.6px;color:#ffffffb3}.home-goal-ring{position:relative;flex-shrink:0;width:76px;height:76px;border-radius:50%;background:conic-gradient(#fff calc(var(--progress) * 1%),#ffffff40 0);display:flex;align-items:center;justify-content:center}.home-goal-ring:before{content:"";position:absolute;top:6px;right:6px;bottom:6px;left:6px;border-radius:50%;background:#3a0ca3}.home-goal-text{position:relative;display:flex;flex-direction:column;align-items:center;color:#fff;font-size:14px;font-weight:800;line-height:1.3}.home-goal-label{font-size:9px;font-weight:600;text-transform:uppercase;letter-spacing:.6px;color:#ffffffb3}.home-section{margin-bottom:24px}.home-section-label{font-size:12px;font-weight:600;text-transform:uppercase;letter-spacing:.6px;color:var(--text-muted);margin:0 0 10px}.home-cards{display:flex;flex-direction:column;gap:10px}.home-action-card{display:flex;align-items:center;gap:14px;width:100%;background:var(--surface);border:1.5px solid var(--border);border-radius:var(--radius-md);padding:14px 16px;box-shadow:var(--shadow-sm);cursor:pointer;text-align:left;font-family:inherit;transition:box-shadow .15s,transform .1s}.home-action-card:hover{box-shadow:var(--shadow-md)}.home-action-card:active{transform:scale(.98)}.home-action-icon{width:42px;height:42px;border-radius:11px;display:flex;align-items:center;justify-content:center;flex-shrink:0}.home-action-text{flex:1;display:flex;flex-direction:column;gap:2px}.home-action-title{font-size:15px;font-weight:700;color:var(--text)}.home-action-subtitle{font-size:12.5px;color:var(--text-muted)}.mastery-bar{display:flex;height:12px;border-radius:6px;overflow:hidden;background:var(--border);margin-bottom:12px}.mastery-segment{height:100%}.mastery-segment.new{background:#cbd5e1}.mastery-segment.learning{background:var(--warning)}.mastery-segment.mastered{background:var(--success)}.mastery-legend{display:flex;flex-wrap:wrap;gap:16px}.mastery-legend-item{display:flex;align-items:center;gap:6px;font-size:12.5px;font-weight:600;color:var(--text-muted)}.mastery-dot{width:10px;height:10px;border-radius:50%;flex-shrink:0}.mastery-dot.new{background:#cbd5e1}.mastery-dot.learning{background:var(--warning)}.mastery-dot.mastered{background:var(--success)}.error-msg{color:var(--error);font-size:13px;font-weight:500;margin-top:10px;padding:10px 14px;background:var(--error-light);border-radius:var(--radius-sm);border:1px solid #FECACA}.empty{text-align:center;color:var(--text-muted);margin-top:40px;font-size:15px}.spinner{display:flex;justify-content:center;margin:24px 0}@keyframes spin{to{transform:rotate(360deg)}}.spinner:after{content:"";width:30px;height:30px;border:3px solid var(--border);border-top-color:var(--primary);border-radius:50%;animation:spin .7s linear infinite}.inner-tab-bar{display:flex;border-bottom:2px solid var(--border);background:var(--surface);flex-shrink:0}.inner-tab-btn{flex:1;padding:10px 4px;background:none;border:none;border-bottom:2px solid transparent;margin-bottom:-2px;color:var(--text-muted);font-weight:500;font-size:13px;cursor:pointer;font-family:inherit;transition:color .15s,border-color .15s}.inner-tab-btn.active{color:#003082;border-bottom-color:#003082;font-weight:700}html.dark{--bg: #0D1117;--surface: #161B22;--text: #E6EDF3;--text-muted: #8B949E;--border: #30363D;--primary-light: #1C2859;--success-light: #0D2818;--error-light: #2A1010;--warning-light: #2A1F0A}html.dark body{color-scheme:dark}html.dark .app-header{background:#002060;box-shadow:0 2px 8px #00000080}html.dark .tab-bar{background:var(--surface);border-top-color:var(--border)}html.dark .tab-btn{color:var(--text-muted)}html.dark .tab-btn.active{color:#93c5fd;border-top-color:#93c5fd}html.dark .header-dropdown{background:#1c2028;border-color:var(--border);box-shadow:0 8px 32px #00000073}html.dark .header-dropdown-title{color:var(--text-muted);border-bottom-color:var(--border)}html.dark .header-dropdown-item{color:var(--text)}html.dark .header-dropdown-item:hover{background:#21262d}html.dark .header-dropdown-item.active{background:#1c2859;color:#93c5fd}html.dark .result-card,html.dark .phrase-item{background:var(--surface);border-color:var(--border)}html.dark .article-card{filter:brightness(.9)}html.dark textarea,html.dark input[type=text],html.dark input[type=date]{background:var(--surface);border-color:var(--border);color:var(--text)}html.dark textarea:focus,html.dark input[type=text]:focus{border-color:var(--primary)}html.dark .btn-secondary,html.dark .btn-outline{background:transparent;color:#93c5fd;border-color:#93c5fd}html.dark .btn-secondary:hover:not(:disabled),html.dark .btn-outline:hover:not(:disabled){background:var(--primary-light)}html.dark .logout-btn{background:#ffffff1a}html.dark .delete-btn{background:#2a1010;color:#f87171}html.dark .delete-btn:hover{background:#3a1515}html.dark .speak-btn{border-color:var(--border);color:var(--text-muted)}html.dark .speak-btn:hover{color:#93c5fd;border-color:#93c5fd}html.dark .mic-btn{border-color:var(--border);color:var(--text-muted)}html.dark .mic-btn:hover{color:#93c5fd;border-color:#93c5fd}html.dark .ask-bubble--assistant{background:#1c2028;border-color:var(--border);color:var(--text)}html.dark .ask-input-row{background:var(--surface);border-top-color:var(--border)}html.dark .inner-tab-bar{background:var(--surface);border-bottom-color:var(--border)}html.dark .inner-tab-btn{color:var(--text-muted)}html.dark .inner-tab-btn.active{color:#93c5fd;border-bottom-color:#93c5fd}html.dark .report-stat-card{background:var(--surface);border-color:var(--border)}html.dark .error-msg{background:var(--error-light);border-color:#5a2020;color:#f87171}html.dark .pod-phrase-card{filter:brightness(.85)}