.onboarding-extension .language-guide-character, .onboarding-extension .language-guide-character .sign-in-alpaca { width: 88px; height: 100px; }
.onboarding-extension .language-guide { margin-top: 14px; margin-bottom: 18px; }
.onboarding-extension .language-guide h1 { font-size: 20px; font-weight: 600; }
.onboarding-extension .language-guide h1::before { content: ""; position: absolute; left: -9px; top: 50%; width: 14px; height: 14px; background: white; border-left: 2px solid #e5e5e5; border-bottom: 2px solid #e5e5e5; transform: translateY(-50%) rotate(45deg); }
.onboarding-extension .language-progress span::after { content: ""; display: block; height: 4px; margin: 3px 7px; border-radius: 5px; background: #89e219; }
.extended-continue { display: flex; align-items: center; justify-content: center; text-decoration: none; font-weight: 800; }
.topic-hint { margin: 0 0 8px; color: #777; font-size: 14px; }
.topic-icon { width: 32px; text-align: center; flex: none; font-size: 28px; }
.topic-check { width: 24px; height: 24px; display: grid; place-items: center; flex: none; margin-left: auto; border: 2px solid #e5e5e5; border-radius: 7px; color: transparent; }
.topic-option:has(input:checked) .topic-check { background: #1cb0f6; border-color: #1cb0f6; color: #fff; }
.onboarding-extension .topic-option:has(input:checked), .onboarding-extension .start-option:has(input:checked) { background: #ddf4ff; border-color: #84d8ff; color: #1899d6; }
.onboarding-extension .topic-option { min-height: 64px; }
.topics-page .language-footer { position: sticky; bottom: 0; z-index: 2; border-top: 1px solid #eee; margin-top: 16px; }
.reminder-status { color: #777; font-size: 14px; line-height: 1.5; }
.onboarding-celebration { align-self: center; margin-top: 70px; font-size: 28px; color: #ffc800; letter-spacing: 24px; animation: celebration-rise 2s ease-in-out infinite; }
.onboarding-celebration span { font-size: 50px; }
.sentence-milestone { display: flex; justify-content: center; align-items: center; gap: 10px; flex-wrap: wrap; margin-top: 50px; }
.sentence-milestone > span { border: 2px solid #e5e5e5; border-radius: 12px; padding: 14px; color: #aaa; font-weight: 800; }
.sentence-milestone strong { color: #58a700; font-size: 88px; letter-spacing: -6px; }
.sentence-milestone strong span { color: #ffc800; font-size: 30px; vertical-align: top; }
.start-option { min-height: 120px; }
.start-icon { font-size: 48px; flex: none; }
.start-option .language-name strong { display: block; font-size: 19px; }
.start-option .language-name small { display: block; margin-top: 8px; font-size: 15px; line-height: 1.5; color: inherit; font-weight: 500; }
.recommended { position: absolute; right: -4px; top: -12px; border-radius: 8px; background: #1cb0f6; color: white; padding: 5px 8px; font-size: 13px; font-weight: 800; }
.premium-page { display: flex; flex-direction: column; min-height: 100%; background: linear-gradient(135deg,#061342,#173f8b); color: #fff; padding-top: max(24px, env(safe-area-inset-top)); }
.premium-page nav { display: flex; align-items: center; justify-content: space-between; padding: 0 24px; }
.premium-close { font-size: 38px; color: #cbd4ef; text-decoration: none; line-height: 1; }
.premium-brand { font-size: 17px; font-weight: 850; font-style: italic; color: #89ffdb; }
.premium-page h1 { text-align: center; font-size: 27px; line-height: 1.45; margin: 34px 24px 0; text-wrap: balance; }
.premium-page h1 strong { display: block; color: #6bffb2; font-size: 22px; margin-top: 10px; }
.premium-mascot { display: flex; align-items: center; justify-content: center; gap: 16px; padding: 30px 0 20px; }
.premium-mascot .sign-in-alpaca { width: 155px; height: 171px; filter: drop-shadow(0 0 18px #a4a8ff88); margin: 0; }
.premium-mascot > span { font-size: 30px; }
.premium-details { flex: 1; display: flex; flex-direction: column; border-radius: 60px 60px 0 0; background: white; color: #555; padding: 34px 24px max(24px,env(safe-area-inset-bottom)); }
.premium-details ul { display: grid; gap: 22px; padding: 0; margin: 0 auto 20px; list-style: none; font-size: 19px; font-weight: 750; }
.premium-details li { display: flex; align-items: center; gap: 18px; }
.premium-details li > span { display: grid; place-items: center; width: 32px; height: 32px; border-radius: 8px; background: linear-gradient(135deg,#02e8a3,#5354ff,#f078ff); color: white; font-size: 25px; }
.premium-details p { text-align: center; color: #888; font-size: 14px; }
.premium-continue { display: flex; justify-content: center; align-items: center; min-height: 56px; margin-top: auto; border-radius: 15px; background: #4b4bff; border-bottom: 5px solid #3535cb; color: #fff; text-decoration: none; font-size: 17px; font-weight: 800; }
@keyframes celebration-rise { 0%,100% { transform: translateY(0) rotate(-5deg); } 50% { transform: translateY(-10px) rotate(5deg); } }
@media(max-width:350px) { .start-icon { font-size: 36px; } .onboarding-extension .language-guide h1 { font-size: 17px; } .premium-page h1 { font-size: 22px; margin-top: 20px; } }
@media(prefers-reduced-motion:reduce) { .onboarding-extension * { animation: none !important; } }
.onboarding-extension .language-footer { position: sticky; bottom: 0; z-index: 3; }
.onboarding-extension .language-form { animation: onboarding-bubble .22s ease-out both; }
.onboarding-extension .language-name { word-break: keep-all; overflow-wrap: anywhere; }
.onboarding-extension .language-option { color: #4b4b4b; }