/* One course, four views: visibility never changes saved learning progress. */
.mobile-course-intro,.mobile-step-nav,.mobile-learning-dock,.mobile-recording-help{display:none}
.transfer-practice{margin-top:18px}
.transfer-body{padding:18px 22px 22px;font-size:14px;line-height:1.8;color:#425a45}
.transfer-body>p{margin:0 0 16px}
.useful-phrases{display:grid;gap:10px;margin:18px 0}
.useful-phrases>div{background:#f1f5e9;border:1px solid #e1e8d6;border-radius:10px;padding:12px 15px}
.useful-phrases p{margin:0}
.useful-phrases p[lang=en]{font-size:16px;line-height:1.7;color:#304f38}
.useful-phrases p+p{font-size:13px;color:#64775a;margin-top:4px}
.transfer-example{border-top:1px solid #e1e8d6;padding-top:12px;margin-top:16px}
.transfer-example summary{cursor:pointer;color:#3e6341;padding:8px 0}
.transfer-example p{margin:12px 0 0}
.transfer-note{font-size:12px;color:#687a5d;margin:18px 0 0!important}
@media(max-width:760px){
 :root{--mobile-nav-height:64px;--mobile-dock-height:68px;--mobile-safe-bottom:env(safe-area-inset-bottom,0px)}
 html{scroll-padding-top:76px}
 body{padding-bottom:calc(var(--mobile-nav-height) + var(--mobile-safe-bottom));font-size:16px}
 .workspace{margin-left:0;min-width:0}
 .sidebar{position:relative;width:auto;padding:7px 16px;border-bottom:1px solid #e1e6d8;min-height:58px;display:flex;flex-direction:row;align-items:center}
 .sidebar .brand{font-size:16px;gap:7px;min-height:44px}
 .sidebar .brand img{width:35px;height:40px}
 .sidebar .brand small{font-size:8px;letter-spacing:1.5px}
 .sidebar .nav-label,.sidebar .side-bottom .small-note{display:none}
 .sidebar .side-bottom{position:absolute;right:12px;top:7px;margin:0;display:block}
 .sidebar .side-bottom>a{font-size:12px;display:flex;align-items:center;min-height:44px;padding:0 8px;color:#536b47}
 .sidebar .side-bottom>a.pwa-link{display:none}
 .sidebar .primary-nav{position:fixed;inset:auto 0 0;z-index:65;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:4px;height:calc(var(--mobile-nav-height) + var(--mobile-safe-bottom));margin:0;padding:5px 10px calc(5px + var(--mobile-safe-bottom));background:#fcfaf5f7;border-top:1px solid #d9e1cf;box-shadow:0 -3px 16px #314d3310;backdrop-filter:blur(12px)}
 .sidebar .primary-nav .nav-item{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;min-width:0;min-height:44px;width:100%;padding:4px;margin:0;border-radius:9px;font-size:12px;line-height:1.4;color:#5d7151;white-space:normal}
 .sidebar .primary-nav .nav-item.active{box-shadow:none;background:#e4ecd8;color:#2f5738}
 .sidebar .primary-nav .nav-item svg{width:20px;height:20px;flex-shrink:0}
 button:not(.word),select,input:not([type=radio]):not([type=checkbox]),summary{min-height:44px}
 button:not(.word),summary{touch-action:manipulation}
 button:focus-visible,a:focus-visible,summary:focus-visible,select:focus-visible{outline:3px solid #648952;outline-offset:3px}
 .primary-journey,.quiet-link,.trail-enter,.journal-link,.stamp-card>a,.journey-stats>a,.section-title>a,.companion-note>a,.checkin-journal{min-height:44px;display:inline-flex;align-items:center}
 .journey-topbar{height:48px;padding:0 16px}
 .town-wordmark{font-size:12px}
 .journal-link{font-size:12px}
 .journey-main{padding:20px 16px 16px}
 .page-eyebrow{font-size:10px;letter-spacing:1.4px}
 .welcome-heading{margin:6px 0 16px}
 .welcome-heading h1,.map-heading h1,.journal-heading h1{font-size:25px;line-height:1.45}
 .welcome-heading p,.map-heading p,.journal-heading p{font-size:14px;line-height:1.8;color:#657657}
 .departure-hero{display:block;min-height:0}
 .departure-copy{padding:20px 20px 16px;position:relative;z-index:1}
 .departure-copy h2{font-size:23px;margin:12px 0 10px;line-height:1.5;max-width:none}
 .destination-label{font-size:12px}
 .departure-copy>p{font-size:14px;line-height:1.8;max-width:none}
 .lesson-time{font-size:12px;margin:10px 0 14px}
 .departure-copy .primary-journey{font-size:15px;min-height:48px;padding:10px 18px;gap:15px}
 .quiet-link{font-size:12px;margin-top:10px;max-width:calc(100% - 96px);line-height:1.6}
 .departure-hero .hero-companion{position:absolute;right:9px;bottom:8px;width:90px;min-height:0;padding:0;margin:0;pointer-events:none;opacity:1;z-index:2}
 .departure-hero .home-puppy{width:90px;height:104px;margin:0}
 .departure-hero .puppy-bubble,.departure-hero .companion-name{display:none}
 .journey-stats{padding:18px 3px;gap:16px}
 .journey-stats span,.journey-stats>a{font-size:12px}
 .section-title>a,.section-title>span{font-size:12px}
 .region-card p,.region-card-bottom{font-size:12px;line-height:1.7}
 .region-caption{font-size:9px}
 .region-grid{gap:12px}
 .ready-card{min-height:76px;padding:16px 14px}
 .ready-card h3{font-size:15px}
 .ready-card p{font-size:12px;line-height:1.7}
 .companion-note p,.companion-note>a,.journey-footer{font-size:12px;line-height:1.8}
 .map-controls{gap:12px}
 .region-tabs{width:100%;gap:6px}
 .region-tabs button{min-width:0;flex:1;font-size:15px;padding:10px 8px}
 .region-tabs button>span{font-size:11px;line-height:1.6}
 .map-search input{font-size:16px;min-height:48px}
 .available-filter{min-height:44px;font-size:13px}
 .available-filter input{width:20px;height:20px}
 .map-count,.map-count>span,.map-region-banner p,.place-description>span:last-child,.place-progress,.trail-copy p,.trail-meta,.trail-label,.trail-enter,.trail-wait,.map-footnote{font-size:12px;line-height:1.7}
 .place-card summary{padding:18px 14px;gap:10px}
 .place-order{font-size:10px}
 .place-progress small{font-size:11px}
 .trail-copy h3{font-size:16px}
 .stamp-card h3{font-size:16px}
 .stamp-place,.stamp-card>p:last-of-type,.stamp-card>a,.journal-footnote,.journal-blank p{font-size:13px;line-height:1.8}
 .backup-page{padding:20px 16px}
 .backup-page h1{font-size:26px}
 .backup-page p,.backup-page button,.backup-summary,.backup-status{font-size:15px;line-height:1.8}
 #app[data-mobile-module] .topbar{height:auto;min-height:58px;padding:7px 16px;gap:8px;align-items:center}
 #app[data-mobile-module] .streak{display:none}
 #app[data-mobile-module] .today{display:flex;gap:10px;align-items:center;width:100%;max-width:none;min-width:0;margin:0}
 #app[data-mobile-module] .today>span{font-size:12px;white-space:nowrap;color:#53694a}
 #app[data-mobile-module] .today select{font-size:16px;min-width:0;width:100%;max-width:100%;height:44px;padding:8px;border:1px solid #dce3d1;border-radius:8px;background:#fffdf7}
 #app[data-mobile-module] main{padding:12px 16px calc(var(--mobile-dock-height) + 24px);max-width:none}
 #app[data-mobile-module] .practice-context,#app[data-mobile-module] .hero,#app[data-mobile-module] .practice-companion{display:none}
 #app[data-mobile-module] .lesson-actions{margin:0 0 8px;gap:4px}
 #app[data-mobile-module] .lesson-actions>button{font-size:12px;padding:0 8px}
 #app[data-mobile-module] .save-line{position:fixed;bottom:calc(var(--mobile-nav-height) + var(--mobile-dock-height) + var(--mobile-safe-bottom) + 10px);left:16px;right:16px;width:auto;max-height:40dvh;overflow:auto;z-index:70;font-size:14px;line-height:1.8;box-shadow:0 4px 20px #314d3320}
 .mobile-course-intro{display:block;margin:0 0 10px}
 .mobile-course-intro>p{font-size:12px;color:#617653;margin:0 0 5px}
 .mobile-course-intro h1{font-size:24px;line-height:1.5;margin:0 0 2px;letter-spacing:0}
 .mobile-course-intro summary{font-size:13px;color:#4b6e41;display:flex;align-items:center;text-decoration:underline;text-underline-offset:4px;width:max-content;max-width:100%}
 .mobile-course-intro details>p{font-size:14px;line-height:1.8;margin:2px 0 12px;color:#586f4d}
 .mobile-step-nav{position:sticky;top:0;z-index:25;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:5px;background:#f8f6eff5;padding:8px 0 10px;margin:0 0 10px;backdrop-filter:blur(12px);scroll-margin-top:0}
 .mobile-step-nav button{display:flex;align-items:center;justify-content:center;gap:5px;min-width:0;min-height:44px;padding:8px 4px;border:1px solid #d9e1cd;border-radius:9px;font-size:14px;line-height:1.4;color:#536b48;background:#fffdf7}
 .mobile-step-nav button>span{font-size:11px;display:grid;place-items:center;min-width:17px;height:17px;border-radius:50%;background:#edf2e4}
 .mobile-step-nav button[aria-pressed=true]{background:#345d43;border-color:#345d43;color:#fffdf5}
 .mobile-step-nav button[aria-pressed=true]>span{background:#ffffff26;color:inherit}
 .mobile-step-nav button.step-done:not([aria-pressed=true]){border-color:#9fb88c;background:#e8efdf}
 .mobile-learning-dock{position:fixed;left:0;right:0;bottom:calc(var(--mobile-nav-height) + var(--mobile-safe-bottom));z-index:64;display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.3fr);gap:10px;min-height:var(--mobile-dock-height);padding:10px 16px;background:#fcfaf5f7;border-top:1px solid #d9e1cf;box-shadow:0 -3px 16px #314d3310;backdrop-filter:blur(12px)}
 .mobile-learning-dock button{min-height:48px;border-radius:10px;font-size:15px;padding:8px 10px;line-height:1.5;display:flex;align-items:center;justify-content:center;gap:7px;border:1px solid #cad8bd;color:#355a3a;background:#e7efde}
 .mobile-learning-dock .mobile-next{background:#345d43;border-color:#345d43;color:#fffdf5}
 .mobile-learning-dock .mobile-next:disabled{background:#e6ebdf;color:#738268;border-color:#dce3d2}
 #app[data-mobile-module] .learning-grid{display:flex;flex-direction:column;gap:16px;align-items:stretch}
 #app[data-mobile-module] .right-stack{display:contents}
 #app[data-mobile-module] .listening-card{order:1;min-width:0}
 #app[data-mobile-module] .vocabulary-card{order:2}
 #app[data-mobile-module] .shadow-preview{order:0;min-width:0}
 #app[data-mobile-module] .reading-module{order:0;min-width:0}
 #app[data-mobile-module] .section-heading{padding:16px 16px 0;gap:10px;align-items:center}
 #app[data-mobile-module] .section-heading h2{font-size:20px;line-height:1.5;letter-spacing:0}
 #app[data-mobile-module] .section-number{display:none}
 #app[data-mobile-module] .section-heading>span{font-size:12px;line-height:1.5}
 #app[data-mobile-module] .listening-sub{margin:8px 16px;font-size:13px;line-height:1.7;align-items:center;gap:10px}
 #app[data-mobile-module] .text-button{font-size:13px;padding:0 4px;flex-shrink:0}
 #app[data-mobile-module] .player{margin:0 16px 10px;padding:10px;gap:10px;min-width:0}
 #app[data-mobile-module] .play-button{width:48px;height:48px;flex-shrink:0}
 #app[data-mobile-module] .track{min-width:0;flex:1}
 #app[data-mobile-module] .player select{font-size:14px;width:65px;flex-shrink:0;padding:4px}
 #app[data-mobile-module] .track>div{font-size:12px}
 #app[data-mobile-module] .sentences{max-height:none;overflow:visible;margin:0 16px;padding:0}
 #app[data-mobile-module] .sentence{gap:8px;padding:16px 0;align-items:flex-start}
 #app[data-mobile-module] .sentence-copy{min-width:0;flex:1}
 #app[data-mobile-module] .sentence-play{width:44px;height:44px;min-width:44px;margin-top:5px}
 #app[data-mobile-module] .sentence-play svg{width:18px;height:18px}
 #app[data-mobile-module] .speaker{font-size:12px;line-height:1.6}
 #app[data-mobile-module] .speaker span{font-size:11px}
 #app[data-mobile-module] .sentence p[lang=en]{font-size:17px;line-height:1.85;overflow-wrap:anywhere}
 #app[data-mobile-module] .translation{font-size:14px;line-height:1.8;margin-top:6px}
 #app[data-mobile-module] .translation-toggle{min-width:44px;min-height:44px;margin-top:4px;font-size:14px}
 #app[data-mobile-module] .sentence-tools{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:7px}
 #app[data-mobile-module] .sentence-tools[hidden]{display:none}
 #app[data-mobile-module] .sentence-tools button{font-size:13px;min-height:44px;padding:6px;white-space:normal;line-height:1.5}
 #app[data-mobile-module] .line-record-status{grid-column:1/-1;font-size:12px}
 #app[data-mobile-module] .card-foot{font-size:12px;line-height:1.7;padding:12px 0;flex-wrap:wrap}
 #app[data-mobile-module] .vocab-list{padding:0 16px 6px}
 #app[data-mobile-module] .vocab-title strong{font-size:20px}
 #app[data-mobile-module] .vocab-title>span{font-size:13px}
 #app[data-mobile-module] .vocab-title button{min-width:44px;padding:8px}
 #app[data-mobile-module] .vocab>p,#app[data-mobile-module] .vocab .example,#app[data-mobile-module] .vocab .example-zh{font-size:14px;line-height:1.8}
 #app[data-mobile-module] .shadow-body{padding:10px 16px 16px}
 #app[data-mobile-module] .shadow-preview .reference-note,#app[data-mobile-module] .desktop-recording-help{display:none}
 #app[data-mobile-module] .mobile-recording-help{display:inline}
 #app[data-mobile-module] .shadow-preview[data-has-clips="false"] .clip-summary,#app[data-mobile-module] .shadow-preview[data-has-clips="false"] .clip-join-controls{display:none}
 #app[data-mobile-module] .mode-tabs button,#app[data-mobile-module] .record-controls button,#app[data-mobile-module] .confirm-record,#app[data-mobile-module] .direct-read,#app[data-mobile-module] .join-button{font-size:14px;min-height:44px;line-height:1.6}
 #app[data-mobile-module] .practice-help,#app[data-mobile-module] .reference-note,#app[data-mobile-module] .record-status,#app[data-mobile-module] .clip-summary,#app[data-mobile-module] .clip-summary>span{font-size:13px!important;line-height:1.8!important}
 #app[data-mobile-module] .reading-module .reading-heading{margin:0 16px 16px;align-items:flex-start;gap:10px}
 #app[data-mobile-module] .reading-module .reading-heading h3{font-size:21px}
 #app[data-mobile-module] .reading-module .reading-text{padding:0 16px}
 #app[data-mobile-module] .reading-paragraph>.reading-english{font-size:17px;line-height:1.95}
 #app[data-mobile-module] .reading-paragraph>.reading-translation{font-size:14px;line-height:1.85}
 #app[data-mobile-module] .reading-quiz .quiz-help,#app[data-mobile-module] .reading-quiz .question legend,#app[data-mobile-module] .reading-quiz .quiz-option,#app[data-mobile-module] .quiz-feedback{font-size:15px;line-height:1.8}
 #app[data-mobile-module] .quiz-option{min-height:48px;align-items:flex-start;padding:10px 6px}
 #app[data-mobile-module] .quiz-option input{width:18px;height:18px;margin-top:5px}
 #app[data-mobile-module] .quiz-feedback summary{display:flex;align-items:center}
 #app[data-mobile-module] .quiz-score{font-size:15px}
 #app[data-mobile-module] .quiz-score small{font-size:12px}
 #app[data-mobile-module] .transfer-practice{margin:0}
 #app[data-mobile-module] .transfer-body{padding:14px 16px 18px;font-size:15px;line-height:1.85}
 #app[data-mobile-module] .useful-phrases p[lang=en]{font-size:17px}
 #app[data-mobile-module] .useful-phrases p+p,#app[data-mobile-module] .transfer-note{font-size:14px}
 #app[data-mobile-module] .checkin{margin-top:16px;padding:18px 16px}
 #app[data-mobile-module] .checkin-heading{gap:9px}
 #app[data-mobile-module] .checkin-heading h2{font-size:18px;line-height:1.6}
 #app[data-mobile-module] .checkin p,#app[data-mobile-module] .checkin-note{font-size:13px!important;line-height:1.8!important}
 #app[data-mobile-module] .checkin-modules li{font-size:13px}
 #app[data-mobile-module] .checkin-modules button{min-height:44px}
 #app[data-mobile-module] .checkin-submit{min-height:48px;font-size:15px}
 #app[data-mobile-module="listening"] .shadow-preview,#app[data-mobile-module="listening"] .reading-module,#app[data-mobile-module="listening"] .sentence-tools{display:none}
 #app[data-mobile-module="shadow"] .vocabulary-card,#app[data-mobile-module="shadow"] .reading-module{display:none}
 #app[data-mobile-module="shadow"] .listening-card>.section-heading,#app[data-mobile-module="shadow"] .listening-card>.listening-sub,#app[data-mobile-module="shadow"] .listening-card>.player,#app[data-mobile-module="shadow"] .listening-card>.audio-status{display:none}
 #app[data-mobile-module="shadow"] .listening-card>.sentences{padding-top:4px}
 #app[data-mobile-module="reading"] .listening-card,#app[data-mobile-module="reading"] .right-stack{display:none}
 #app[data-mobile-module="apply"] .learning-grid{display:none}
 #app[data-mobile-module]:not([data-mobile-module="apply"]) .transfer-practice,#app[data-mobile-module]:not([data-mobile-module="apply"]) .checkin{display:none!important}
 #app[data-mobile-module] .listening-card,#app[data-mobile-module] .shadow-preview,#app[data-mobile-module] .reading-module,#app[data-mobile-module] .transfer-practice{scroll-margin-top:76px}
 .lookup{max-height:calc(100dvh - var(--mobile-nav-height) - var(--mobile-dock-height) - var(--mobile-safe-bottom) - 24px);font-size:15px}
 .pwa-update{bottom:calc(var(--mobile-nav-height) + var(--mobile-safe-bottom) + 12px);left:12px;right:12px;max-width:none;max-height:calc(100dvh - 200px);overflow:auto}
 body:has(#app[data-mobile-module]) .pwa-update{bottom:calc(var(--mobile-nav-height) + var(--mobile-dock-height) + var(--mobile-safe-bottom) + 12px)}
 .pwa-update button{min-height:44px}
 .journey-celebration{max-width:calc(100vw - 32px);max-height:calc(100dvh - 32px);overflow:auto}
}
@media(max-width:360px){.sidebar .brand{font-size:14px}.sidebar .side-bottom>a{font-size:11px}.mobile-step-nav button{gap:3px;font-size:13px}.mobile-learning-dock{padding-left:12px;padding-right:12px;gap:8px}.mobile-learning-dock button{font-size:14px}.region-grid{grid-template-columns:1fr}}
@media(max-width:760px) and (display-mode:standalone){.sidebar{padding-top:calc(7px + env(safe-area-inset-top,0px))}.sidebar .side-bottom{top:calc(7px + env(safe-area-inset-top,0px))}#app[data-mobile-module] .topbar{padding-top:7px}}