:root{--l3m-purple: #9e55a3;--l3m-purple-dark: #7c4382;--l3m-purple-deep: #673a6c;--l3m-purple-soft: #f4e8f5;--l3m-purple-softer: #faf3fb;--l3m-blue: #526ec9;--l3m-blue-dark: #3f57a6;--l3m-blue-soft: #e9edfb;--l3m-orange: #f18715;--l3m-orange-dark: #c96e08;--l3m-orange-soft: #fdefe0;--l3m-bg: #fff7f7;--l3m-surface: #ffffff;--l3m-ink: #0d020f;--l3m-ink-60: rgba(13, 2, 15, .62);--l3m-ink-45: rgba(13, 2, 15, .47);--l3m-border: rgba(13, 2, 15, .09);--l3m-danger: #c62828;--l3m-danger-soft: #fdecec;--radius-sm: 10px;--radius-md: 16px;--radius-lg: 22px;--shadow-sm: 0 1px 2px rgba(13, 2, 15, .06), 0 1px 6px rgba(13, 2, 15, .04);--shadow-md: 0 4px 16px rgba(13, 2, 15, .09);--app-max-width: 560px;--bottom-nav-height: 64px;--font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif}*,*:before,*:after{box-sizing:border-box}html,body{margin:0;padding:0}body{font-family:var(--font-sans);background:#f4ecee;color:var(--l3m-ink);font-size:16px;line-height:1.5;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}h1,h2,h3,p{margin:0}h1{font-size:1.5rem;line-height:1.25;letter-spacing:-.01em}h2{font-size:1.125rem;line-height:1.3}img{max-width:100%;display:block}button{font:inherit;cursor:pointer}a{color:var(--l3m-blue)}:focus-visible{outline:3px solid rgba(82,110,201,.65);outline-offset:2px;border-radius:6px}.visually-hidden{position:absolute;width:1px;height:1px;margin:-1px;padding:0;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}@media (prefers-reduced-motion: reduce){*,*:before,*:after{animation-duration:.01ms!important;transition-duration:.01ms!important}}button,a,input,select,textarea,[role=radio],[role=button]{scroll-margin-bottom:calc(var(--bottom-nav-height) + 24px);scroll-margin-top:72px}.app-shell{max-width:var(--app-max-width);margin:0 auto;min-height:100dvh;display:flex;flex-direction:column;background:var(--l3m-bg);position:relative}.app-header{position:sticky;top:0;z-index:20;display:flex;align-items:center;justify-content:space-between;gap:8px;padding:14px 16px;background:#fff7f7eb;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);border-bottom:1px solid var(--l3m-border)}.app-header-spacer{width:40px}.app-main{flex:1;padding-bottom:calc(var(--bottom-nav-height) + 24px + env(safe-area-inset-bottom,0px))}.brand-logo-link{display:inline-flex;align-items:center;justify-content:center;min-width:44px;min-height:44px;border-radius:var(--radius-sm)}.brand-logo{display:block;object-fit:contain}.brand-logo-inline{display:inline-flex;align-items:center;gap:8px}.brand-logo-inline img{object-fit:contain}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:48px;padding:12px 20px;border-radius:var(--radius-md);border:1px solid transparent;font-size:1rem;font-weight:600;transition:filter .15s ease,background .15s ease,transform .05s ease}.btn:active{transform:scale(.99)}.btn:disabled{opacity:.55;cursor:not-allowed}.btn-block{display:flex;width:100%}.btn-primary{background:linear-gradient(135deg,var(--l3m-purple) 0%,var(--l3m-blue) 100%);color:#fff;box-shadow:0 4px 12px #9e55a347}.btn-primary:hover:not(:disabled){filter:brightness(1.05)}.btn-secondary{background:var(--l3m-surface);color:var(--l3m-blue);border-color:var(--l3m-blue)}.btn-secondary:hover:not(:disabled){background:var(--l3m-blue-soft)}.btn-warmup{background:var(--l3m-orange);color:#fff;box-shadow:0 4px 12px #f187154d}.btn-warmup:hover:not(:disabled){filter:brightness(1.05)}.btn-danger{background:var(--l3m-danger);color:#fff}.icon-button{display:inline-flex;align-items:center;justify-content:center;width:40px;height:40px;border:none;border-radius:12px;background:transparent;color:var(--l3m-ink)}.icon-button:hover{background:#0d020f0f}.text-button{display:inline-flex;align-items:center;gap:6px;border:none;background:transparent;color:var(--l3m-purple);font-weight:600;font-size:.875rem;padding:8px 10px;border-radius:10px}.text-button:hover{background:var(--l3m-purple-soft)}.link-button{border:none;background:none;padding:0;color:var(--l3m-purple);font-weight:700;text-decoration:underline;cursor:pointer}.card{background:var(--l3m-surface);border:1px solid var(--l3m-border);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm)}.card-purple{background:linear-gradient(135deg,var(--l3m-purple) 0%,var(--l3m-purple-dark) 100%);color:#fff;border-color:transparent}.card-blue{background:var(--l3m-blue-soft);border-color:#526ec940}.card-orange{background:var(--l3m-orange-soft);border-color:#f187154d}.bottom-nav{position:fixed;bottom:0;left:50%;transform:translate(-50%);width:100%;max-width:var(--app-max-width);height:calc(var(--bottom-nav-height) + env(safe-area-inset-bottom,0px));padding-bottom:env(safe-area-inset-bottom,0px);display:grid;grid-template-columns:repeat(4,1fr);background:#fffffff7;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);border-top:1px solid var(--l3m-border);z-index:30}.bottom-nav-tab{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;text-decoration:none;color:var(--l3m-ink-45);font-size:.7rem;font-weight:600;min-height:48px}.bottom-nav-active{color:var(--l3m-purple)}.bottom-nav-active:after{content:"";width:22px;height:3px;border-radius:3px;background:var(--l3m-purple);position:absolute;bottom:calc(env(safe-area-inset-bottom,0px) + 6px)}.bottom-nav-tab{position:relative}.lesson-card{display:flex;gap:12px;align-items:center;width:100%;padding:10px;background:var(--l3m-surface);border:1px solid var(--l3m-border);border-radius:var(--radius-md);text-align:left;box-shadow:var(--shadow-sm);transition:border-color .15s ease,box-shadow .15s ease}.lesson-card:hover{border-color:#9e55a373;box-shadow:var(--shadow-md)}.lesson-card-thumb{position:relative;flex:0 0 112px;width:112px;aspect-ratio:16 / 9;border-radius:12px;overflow:hidden;background:var(--l3m-purple-soft)}.lesson-card-thumb img{width:100%;height:100%;object-fit:cover}.lesson-card-play{position:absolute;top:0;right:0;bottom:0;left:0;display:flex;align-items:center;justify-content:center;color:#fff;background:#0d020f47}.lesson-card-body{display:flex;flex-direction:column;min-width:0}.lesson-card-title{font-weight:600;font-size:.9rem;line-height:1.35;color:var(--l3m-ink);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.category-filter{display:flex;gap:8px;overflow-x:auto;padding:4px 0 10px;scrollbar-width:none}.category-filter::-webkit-scrollbar{display:none}.chip{flex:0 0 auto;min-height:40px;padding:8px 16px;border-radius:999px;border:1px solid var(--l3m-border);background:var(--l3m-surface);color:var(--l3m-ink-60);font-size:.875rem;font-weight:600;white-space:nowrap}.chip:hover{border-color:#9e55a380}.chip-active{background:var(--l3m-purple);border-color:var(--l3m-purple);color:#fff}.chip-active:before{content:"✓ ";font-weight:700}.yt-player{position:relative;width:100%;aspect-ratio:16 / 9;border-radius:var(--radius-md);overflow:hidden;background:#000;box-shadow:var(--shadow-md)}.yt-player iframe{position:absolute;top:0;right:0;bottom:0;left:0;width:100%;height:100%;border:0}.yt-rate{display:flex;flex-direction:column;gap:6px;margin-top:10px;font-size:.85rem;color:var(--l3m-ink-60)}.yt-rate-head,.yt-rate-controls{display:flex;align-items:center;gap:8px}.yt-rate-label{font-weight:600}.yt-rate-value{margin-right:auto;font-weight:700;color:var(--l3m-ink);font-variant-numeric:tabular-nums}.yt-rate-slider{flex:1;min-width:0;height:40px;margin:0;accent-color:var(--l3m-purple)}.yt-rate-btn{flex:0 0 auto;display:inline-flex;align-items:center;justify-content:center;min-width:40px;min-height:40px;padding:0 10px;border:1px solid var(--l3m-border);border-radius:var(--radius-sm);background:var(--l3m-surface);color:var(--l3m-ink);font-size:1.15rem;font-weight:700;line-height:1;font-variant-numeric:tabular-nums;transition:border-color .15s ease,background .15s ease}.yt-rate-btn:hover:not(:disabled){border-color:#9e55a380;background:var(--l3m-purple-softer)}.yt-rate-btn:active:not(:disabled){background:var(--l3m-purple-soft)}.yt-rate-btn:disabled{opacity:.55;cursor:not-allowed}.yt-rate-reset{font-size:.85rem;color:var(--l3m-purple)}.question{border:none;padding:0;margin:0 0 20px}.feedback-honesty{margin:-6px 0 16px;font-size:.85rem;font-weight:600;color:var(--l3m-purple);text-align:center}.question-legend{font-weight:700;font-size:1rem;margin-bottom:12px;padding:0}.choice-row{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}.choice{min-height:52px;border-radius:var(--radius-md);border:2px solid var(--l3m-border);background:var(--l3m-surface);font-weight:600;color:var(--l3m-ink-60);font-size:.95rem}.choice:hover{border-color:#9e55a380}.choice-row-stacked{grid-template-columns:1fr}.choice-active{border-color:var(--l3m-purple);background:var(--l3m-purple-soft);color:var(--l3m-purple-deep);font-weight:800}.choice-active:before{content:"✓ "}.scale-row{display:flex;align-items:center;gap:6px}.scale-end{display:flex;color:var(--l3m-ink-45);flex:0 0 auto}.scale-buttons{display:grid;grid-template-columns:repeat(10,1fr);gap:4px;flex:1}.scale-btn{min-width:0;min-height:46px;border-radius:10px;border:1.5px solid var(--l3m-border);background:var(--l3m-surface);font-size:.85rem;font-weight:600;color:var(--l3m-ink-60);padding:0}.scale-btn:hover{border-color:#526ec999}.scale-btn-active{background:var(--l3m-blue);border-color:var(--l3m-blue);color:#fff;font-weight:800;box-shadow:0 2px 8px #526ec966}.scale-labels{display:flex;justify-content:space-between;margin-top:8px;font-size:.78rem;color:var(--l3m-ink-60)}.scale-labels span{display:inline-flex;align-items:center;gap:4px}.disclaimer{margin-top:20px;border:1px solid var(--l3m-border);border-radius:var(--radius-md);background:var(--l3m-surface);overflow:hidden}.disclaimer-toggle{display:flex;align-items:center;gap:8px;width:100%;padding:14px 16px;border:none;background:transparent;color:var(--l3m-ink-60);font-size:.85rem;font-weight:600;text-align:left}.disclaimer-toggle:hover{background:var(--l3m-purple-softer);color:var(--l3m-ink)}.disclaimer-chevron{margin-left:auto;font-size:1.1rem;font-weight:700}.disclaimer-body{padding:0 16px 16px;font-size:.82rem;line-height:1.6;color:var(--l3m-ink-60);display:flex;flex-direction:column;gap:12px}.disclaimer-uppercase{text-transform:uppercase}.metric-card{background:var(--l3m-surface);border:1px solid var(--l3m-border);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);padding:24px 16px;display:flex;flex-direction:column;align-items:center;gap:6px;text-align:center}.metric-icon{display:flex;align-items:center;justify-content:center;width:52px;height:52px;border-radius:16px;background:var(--l3m-orange-soft);color:var(--l3m-orange);margin-bottom:6px}.metric-card:nth-child(2) .metric-icon{background:var(--l3m-blue-soft);color:var(--l3m-blue)}.metric-card:nth-child(3) .metric-icon{background:var(--l3m-purple-soft);color:var(--l3m-purple)}.metric-value{font-size:1.6rem;font-weight:800;color:var(--l3m-ink);letter-spacing:-.02em}.metric-label{font-size:.82rem;color:var(--l3m-ink-60);font-weight:600}.metric-hint{font-size:.78rem;line-height:1.35;color:var(--l3m-ink-60);margin-top:2px}.profile-section{background:var(--l3m-surface);border:1px solid var(--l3m-border);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);padding:16px;margin-bottom:16px}.profile-section-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:8px}.profile-section-title{font-size:1rem;font-weight:700}.field-label{display:block;font-size:.8rem;font-weight:600;color:var(--l3m-ink-60);margin:12px 0 6px}.field{display:flex;align-items:center;gap:10px;background:var(--l3m-surface);border:1px solid var(--l3m-border);border-radius:var(--radius-md);padding:0 14px;min-height:52px;color:var(--l3m-ink-45)}.field:focus-within{border-color:var(--l3m-purple);box-shadow:0 0 0 3px #9e55a32e}.field input{flex:1;border:none;outline:none;background:transparent;font-size:1rem;min-width:0;padding:12px 0;color:var(--l3m-ink)}.field-eye{border:none;background:none;padding:6px;display:flex;color:var(--l3m-ink-45);border-radius:8px}.text-input{width:100%;min-height:48px;padding:10px 14px;border:1px solid var(--l3m-border);border-radius:var(--radius-md);background:var(--l3m-surface);font-size:1rem;color:var(--l3m-ink);margin-bottom:4px}.text-input:focus{outline:none;border-color:var(--l3m-purple);box-shadow:0 0 0 3px #9e55a32e}.form-hint{font-size:.82rem;color:var(--l3m-ink-60);text-align:center;margin-top:10px}.empty-note{color:var(--l3m-ink-60);text-align:center;padding:24px 0}.pause-notice{display:grid;grid-template-columns:auto 1fr;gap:4px 10px;align-items:start;padding:12px 14px;margin-bottom:14px;border-radius:var(--radius-md);background:var(--l3m-orange-soft);border:1px solid rgba(241,135,21,.25)}.pause-notice-icon{margin-top:2px;color:var(--l3m-orange-dark)}.pause-notice-text{margin:0;font-size:.875rem;line-height:1.4}.pause-notice-actions{grid-column:2;display:flex;flex-wrap:wrap;align-items:center;gap:6px 8px;margin-top:6px}.pause-notice-cta{min-height:40px;padding:8px 14px;font-size:.9rem}.helpbox{width:100%;max-width:100%;height:min(88dvh,720px);max-height:100dvh;margin:auto 0 0;padding:0;border:none;border-radius:var(--radius-lg) var(--radius-lg) 0 0;background:var(--l3m-bg);color:var(--l3m-ink);font-family:var(--font-sans);box-shadow:var(--shadow-md)}.helpbox::backdrop{background:#00000073}@media (min-width: 720px){.helpbox{width:420px;height:100dvh;margin:0 0 0 auto;border-radius:var(--radius-lg) 0 0 var(--radius-lg)}}.helpbox-panel{display:flex;flex-direction:column;height:100%}.helpbox-header{display:flex;align-items:center;justify-content:space-between;padding:10px 12px 10px 20px;border-bottom:1px solid var(--l3m-border);background:var(--l3m-surface)}.helpbox-header h2{margin:0;font-size:1.1rem}.helpbox-log{flex:1;overflow-y:auto;overscroll-behavior:contain;padding:16px 16px calc(20px + env(safe-area-inset-bottom,0px))}.helpbox-turn{display:flex;flex-direction:column;gap:10px;margin-bottom:10px}.helpbox-bubble{align-self:flex-start;max-width:92%;margin:0;padding:12px 14px;border-radius:4px var(--radius-md) var(--radius-md) var(--radius-md);background:var(--l3m-surface);box-shadow:var(--shadow-sm);font-size:.95rem;line-height:1.45;overflow-wrap:anywhere}.helpbox-bubble p{margin:0}.helpbox-bubble-user{align-self:flex-end;border-radius:var(--radius-md) 4px var(--radius-md) var(--radius-md);background:var(--l3m-purple-soft);color:var(--l3m-purple-deep);font-weight:600;box-shadow:none}.helpbox-steps{margin:8px 0 0;padding-left:22px}.helpbox-steps li+li{margin-top:6px}.helpbox-note{margin-top:8px!important;font-size:.85rem;color:var(--l3m-ink-60)}.helpbox-link{margin:6px 0 -4px -10px;min-height:44px}.helpbox-question{margin:4px 0 8px;font-size:.9rem;font-weight:600;color:var(--l3m-ink-60)}.helpbox-options{display:flex;flex-direction:column;align-items:flex-end;gap:8px}.helpbox-options-row{flex-direction:row;flex-wrap:wrap;justify-content:flex-end}.helpbox-option{min-height:44px;max-width:92%;padding:10px 16px;border:1px solid var(--l3m-purple);border-radius:var(--radius-md);background:var(--l3m-surface);color:var(--l3m-purple-dark);font-size:.95rem;font-weight:600;text-align:right}.helpbox-option:hover{background:var(--l3m-purple-softer)}.helpbox-form{display:flex;flex-direction:column;gap:4px;margin:6px 0 10px;padding:16px;border-radius:var(--radius-md);background:var(--l3m-surface);box-shadow:var(--shadow-sm)}.helpbox-textarea{min-height:104px;resize:vertical;font-family:inherit}.helpbox-form .btn{margin-top:10px}.helpbox-restart{display:flex;min-height:44px;margin:8px auto 0}.helpbox-launcher{position:fixed;right:max(16px,env(safe-area-inset-right,0px));bottom:calc(16px + env(safe-area-inset-bottom,0px));z-index:25;display:inline-flex;align-items:center;justify-content:center;width:56px;height:56px;border:none;border-radius:50%;background:linear-gradient(135deg,var(--l3m-purple) 0%,var(--l3m-blue) 100%);color:#fff;box-shadow:0 6px 18px #526ec966;transition:transform .15s ease,filter .15s ease}.helpbox-launcher:hover{filter:brightness(1.05);transform:scale(1.05)}body:has(.bottom-nav) .helpbox-launcher{bottom:calc(var(--bottom-nav-height) + 16px + env(safe-area-inset-bottom,0px))}.login-page{padding-bottom:calc(88px + env(safe-area-inset-bottom,0px))}.page{padding:20px 16px 8px}.page-heading{margin-bottom:18px}.page-heading p{color:var(--l3m-ink-60);margin-top:4px;font-size:.95rem}.login-page{position:relative;min-height:100dvh;background:radial-gradient(120px 120px at 8% 6%,rgba(158,85,163,.16),transparent 70%),radial-gradient(140px 140px at 94% 12%,rgba(82,110,201,.14),transparent 70%),radial-gradient(160px 160px at 88% 94%,rgba(241,135,21,.14),transparent 70%),var(--l3m-bg);display:flex;justify-content:center;align-items:flex-start}.login-notice{position:fixed;z-index:10;top:max(16px,env(safe-area-inset-top));left:50%;display:flex;align-items:center;justify-content:space-between;gap:16px;width:min(560px,calc(100% - 32px));padding:14px 14px 14px 18px;border:1px solid var(--l3m-border);border-radius:var(--radius-md);background:var(--l3m-surface);box-shadow:var(--shadow-md);color:var(--l3m-ink);font-weight:600;line-height:1.45;transform:translate(-50%);animation:login-notice-enter .22s ease-out both}.login-notice.is-success{background:var(--l3m-purple-softer);border-color:#7c438238}.login-notice.is-error{background:var(--l3m-danger-soft);border-color:#c6282838;color:var(--l3m-danger)}.login-notice-close{display:grid;flex:0 0 auto;place-items:center;width:36px;height:36px;border:0;border-radius:var(--radius-sm);background:transparent;color:inherit;cursor:pointer}.login-notice-close:hover{background:#0d020f0f}.login-notice-close:focus-visible{outline:2px solid currentColor;outline-offset:2px}@keyframes login-notice-enter{0%{opacity:0;translate:0 -8px}to{opacity:1;translate:0 0}}@media (prefers-reduced-motion: reduce){.login-notice{animation:none}}.login-inner{width:100%;max-width:var(--app-max-width);padding:48px 24px 40px;display:flex;flex-direction:column}.login-brand{display:flex;flex-direction:column;align-items:center;gap:14px;margin-bottom:34px}.login-brand img{max-width:240px}.login-slogan{font-size:1rem;color:var(--l3m-ink-60);font-weight:500}.google-button{display:flex;align-items:center;justify-content:center;gap:12px;min-height:52px;border-radius:var(--radius-md);border:1px solid var(--l3m-border);background:var(--l3m-surface);font-weight:700;font-size:1rem;color:var(--l3m-ink);box-shadow:var(--shadow-sm)}.google-button:hover{background:#fff;border-color:#0d020f2e}.login-divider{display:flex;align-items:center;gap:14px;color:var(--l3m-ink-45);font-size:.85rem;margin:22px 0 6px}.login-divider:before,.login-divider:after{content:"";flex:1;height:1px;background:var(--l3m-border)}.login-form{display:flex;flex-direction:column}.login-form 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