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@media(min-width:1400px){.main{padding-left:60px;padding-right:60px}.hero{min-height:340px}.hero h2{font-size:39px}.hero-copy{padding-top:39px}.lesson-card{padding:24px 27px}}
@media(max-width:1100px){.sidebar{width:185px;padding:28px 16px}.main{margin-left:185px;padding:25px}.hero-copy{padding:28px 0 27px 27px}.hero h2{font-size:30px}.hero-actions .small{display:none}.learning-layout,.practice-layout{grid-template-columns:minmax(0,1fr) 220px}.panel{padding:23px}.stats{gap:11px}.stat{padding:13px;gap:10px}.stat-icon{width:32px;height:32px}.stat-value{font-size:21px}.word-main{font-size:37px}}
@media(max-width:850px){.sidebar{width:78px;padding:24px 12px;align-items:center}.brand{margin:0 0 35px}.brand>div:not(.brand-symbol),.nav-label,.sidebar-note,.sidebar-foot>span{display:none}.nav a{padding:14px;position:relative}.nav a .count{position:absolute;top:2px;right:0;font-size:9px;min-width:15px;height:15px;line-height:15px;background:#d6dfc7;color:var(--green)}.sidebar-foot{margin-top:auto}.main{margin-left:78px;padding:23px}.learning-layout,.practice-layout{grid-template-columns:1fr}.learning-aside{display:none}.hero{min-height:290px}.hero h2{font-size:27px}.hero p{font-size:11px}.hero-visual img{width:125%}.lesson-top>.pill{display:none}.stats{grid-template-columns:1fr 1fr 1fr}.stat-icon{display:none}.scene-label{right:13px;padding:9px 11px}.scene-label .english{font-size:12px}}
@media(max-width:600px){.sidebar{width:auto;position:sticky;inset:0;top:0;padding:11px 17px;background:#fffef9f5;backdrop-filter:blur(12px);display:block;border-right:0;border-bottom:1px solid var(--line)}.brand{display:none}.mobile-brand{display:flex;justify-content:space-between;align-items:center;margin-bottom:10px}.mobile-brand .brand-name{font-size:18px}.mobile-brand .row{gap:8px}.mobile-brand .brand-symbol{width:28px;height:28px;border-radius:8px}.mobile-brand .brand-symbol svg{width:18px;height:18px}.mobile-brand .small{font-size:10px;color:#8b927d;letter-spacing:1px}.nav{display:flex;justify-content:space-between;gap:5px}.nav a{padding:7px 10px;gap:5px;font-size:11px;border-radius:8px;flex:1;justify-content:center}.nav svg{width:15px;height:15px}.nav-label{display:inline}.nav a .count{display:none}.sidebar-foot{display:none}.main{margin-left:0;padding:20px 17px 26px}.topbar{display:none}.welcome{margin-bottom:18px}.welcome h1{font-size:23px}.welcome p{font-size:11px}.hero{grid-template-columns:1fr;min-height:0}.hero-copy{padding:25px 23px 4px}.hero .eyebrow{font-size:9px;margin-bottom:10px}.hero h2{font-size:29px;line-height:1.45}.hero p{max-width:270px;margin-top:12px;font-size:11px}.hero-actions{margin-top:18px;position:relative;z-index:2}.hero-visual{height:195px;margin-top:-35px;margin-left:100px}.hero-visual img{object-fit:contain;width:120%;height:240px;margin-top:15px}.scene-label{bottom:12px;right:12px;font-size:10px;transform:rotate(-2deg)}.stats{gap:8px;margin:15px 0 25px}.stat{border-radius:12px;padding:12px 11px;min-height:78px}.stat-label{font-size:10px}.stat-value{font-size:22px}.stat-value span{font-size:9px;margin-left:2px}.stat-value.free{font-size:15px;letter-spacing:0;line-height:1.8}.section-head h2{font-size:17px}.section-head p{font-size:10px}.lesson-grid{grid-template-columns:1fr;gap:12px}.lesson-card{padding:19px 20px}.lesson-top>.pill{display:block}.lesson-description{margin-bottom:14px}.word-preview{margin-bottom:17px}.footer{flex-direction:column;gap:5px;font-size:9px}.page-head h1{font-size:25px}.page-head p{font-size:12px}.panel{padding:20px}.word-main{font-size:34px}.meaning{font-size:16px}.example .english{font-size:19px}.learning-card{min-height:0}.word-actions .btn{flex:1}.word-actions .text-link{font-size:11px}.vocab-row{grid-template-columns:1fr auto;gap:8px 10px}.vocab-word{grid-column:1}.vocab-meaning{grid-column:1;grid-row:2;color:var(--muted)}.vocab-row>.tag{grid-column:1;grid-row:3;margin-top:2px}.word-row-actions{grid-column:2;grid-row:1/4}.word-row-actions .icon-btn{width:30px;height:30px}.review-summary{padding:21px;align-items:flex-start;flex-direction:column}.review-item{flex-wrap:wrap;gap:8px}.review-item>.muted{font-size:11px}.due-label{font-size:10px}.question{font-size:15px}.passage{font-size:15px;padding:17px}.tabs{gap:6px}.tab{font-size:11px;padding:7px 10px}.recall-prompt{font-size:19px}.top-right{gap:10px}.settings-dialog{padding:23px}.searchbar{gap:8px}}
@media(prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important;scroll-behavior:auto!important}}

/* Full-library navigation and bounded study groups. */
.corpus-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.corpus-card{display:flex;align-items:center;gap:14px;padding:20px;border:1px solid var(--line);border-radius:16px;background:var(--paper)}.corpus-card>div{flex:1;min-width:0}.corpus-card h3{font-size:16px}.corpus-card h3 span{font-size:12px;color:var(--muted);font-weight:400;margin-left:7px}.corpus-card p{font-size:11px;color:var(--muted);margin-top:5px}.corpus-card>svg{flex-shrink:0;color:var(--muted)}.corpus-card .lesson-icon{flex-shrink:0}.corpus-card:hover{background:#f2f5ea}.scene-section{margin-top:32px}.scope-note{font-size:12px;color:var(--muted);line-height:1.9;margin-top:16px}.bank-tools{display:flex;align-items:center;gap:12px;flex-wrap:wrap;margin-bottom:22px}.bank-tools label{font-size:12px;color:var(--muted)}.bank-tools select{width:260px;max-width:100%;font-size:13px;padding:9px 12px}.bank-tools>span{flex:1;min-width:220px}.pagination{display:flex;justify-content:space-between;align-items:center;gap:12px;margin:24px 0 8px}.pagination .row{gap:8px}.btn:disabled{opacity:.45;cursor:default;transform:none}.source-caption{display:block;font-size:10px;color:var(--muted);margin-bottom:3px}.related-preview{font-size:10px;color:var(--muted);margin-top:5px}.category-emblem{height:130px;background:#edf1e6;border-radius:14px;display:grid;place-items:center;color:var(--green);margin-bottom:22px}.category-emblem svg{width:50px;height:50px}.phonetic{font-size:15px;color:var(--muted);margin-top:10px}.meaning-label{margin:20px 0 0}.meaning-label+.meaning{margin-top:5px}.source-pages{white-space:normal}.vocab-word,.vocab-meaning{min-width:0;overflow-wrap:anywhere}.vocab-word .small{line-height:1.7;margin-top:4px}.bank-result-head{align-items:center}.bank-result-head .bank-count{margin:0}
@media(max-width:600px){.corpus-grid{grid-template-columns:1fr}.corpus-card{padding:17px}.corpus-card h3{font-size:15px}.bank-tools{gap:8px}.bank-tools select{flex:1;min-width:180px}.bank-tools>span{flex-basis:100%}.pagination{align-items:flex-start;flex-direction:column}.bank-result-head{flex-wrap:wrap}.scene-section{align-items:flex-start;flex-direction:column}}

/* Additional scenes and source correction details. */
.tabs{flex-wrap:wrap}.tabs .tab{white-space:normal}.correction-note{border:1px solid #cbd8bd;margin:16px 0}.correction-note .text-link{text-decoration:underline;overflow-wrap:anywhere}.source-details{overflow-wrap:anywhere}

/* Stage 3: accessible scene storytelling, inside the main card on all widths. */
.lesson-story-preview{margin:-8px -9px 20px;border-radius:12px;overflow:hidden;background:#eeeadd}.lesson-story-preview img{display:block;width:100%;height:auto}
.scene-explorer{margin:22px 0;background:#f5f4eb;border:1px solid #e2e5d7;border-radius:16px;padding:16px}.scene-heading{display:flex;align-items:center;justify-content:space-between;gap:12px}.scene-heading h3{font-size:15px;margin-top:3px}.scene-heading .eyebrow{font-size:9px;letter-spacing:1.5px}.scene-steps{display:flex;gap:7px;margin:14px 0}.scene-step{flex:1;min-width:0;border:1px solid #dce2d3;border-radius:9px;background:#fffef7;padding:8px 6px;font-size:11px;line-height:1.6}.scene-step span{display:block;font-family:Georgia,serif;font-size:12px;color:#8c987d}.scene-step.active{background:var(--green);color:#fffef5;border-color:var(--green)}.scene-step.active span{color:#d0dcc3}.scene-content{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:18px;align-items:center}.scene-window{position:relative;overflow:hidden;margin:0;background:#ece9df;border-radius:10px;width:100%;min-width:0}.scene-window img{position:absolute;top:0;width:300%;max-width:none;height:100%;object-fit:fill;display:block}.scene-copy{min-width:0}.scene-caption-row{display:flex;align-items:flex-start;gap:8px}.scene-caption-row .english{font-size:17px;line-height:1.65}.scene-caption-row .speaker-btn{width:31px;height:31px}.scene-translation{margin-top:10px;font-size:12px;color:#728067;line-height:1.9}.scene-copy .target-chips{margin:12px 0}.scene-question{font-size:12px;border-top:1px solid #dde2d5;margin:12px 0 8px;padding-top:10px;color:#65745b}.scene-question strong{display:block;margin-bottom:4px;color:var(--green)}.scene-hint-toggle{border:1px solid #dce2d3;border-radius:10px;background:#f8f8f1;color:var(--green);padding:9px 12px;display:flex;align-items:center;gap:8px;flex-wrap:wrap;font-size:12px;width:100%}.scene-hint-toggle .small{margin-left:auto;color:#899476}.practice-scene{margin:14px 0 24px}.scene-hint-note{font-size:11px;color:#7e816d;margin:-12px 0 16px}.scene-explorer .target-chip{white-space:normal;overflow-wrap:anywhere}
@media(max-width:1050px){.scene-content{grid-template-columns:1fr}.scene-window{max-width:380px;margin:0 auto}.scene-copy{padding-top:2px}}
@media(max-width:600px){.scene-explorer{padding:12px;margin:18px 0}.scene-heading{align-items:flex-start;gap:8px}.scene-heading .pill{font-size:9px}.scene-heading h3{font-size:14px}.scene-step{font-size:10px;padding:7px 4px}.scene-caption-row .english{font-size:17px}.lesson-story-preview{margin:-3px -2px 17px}}

/* Stage 4: example discovery within the complete library. */
.example-collection{display:flex;align-items:center;justify-content:space-between;gap:18px;flex-wrap:wrap;margin-top:18px;padding:20px 22px;border:1px solid var(--line);border-radius:16px;background:#eef2e8}.example-collection h2{font-size:17px}.example-collection p{margin-top:6px;font-size:12px;color:#697762}.example-collection .btn{flex-shrink:0}.example-badge{display:inline-block;padding:1px 7px;margin-top:6px;border-radius:5px;background:#eaf0e3;color:#526b44;font-size:10px}.bank-tools #content-filter{width:170px}.empty-inline .btn{margin-top:14px}@media(max-width:600px){.example-collection{padding:17px}.bank-tools label{flex-basis:100%}.bank-tools #content-filter,.bank-tools #topic-filter{width:100%;flex-basis:100%}}

/* Stage 8: categorized practice and compact, keyboard-accessible scene navigation. */
.practice-filters{gap:8px;margin-bottom:12px}.practice-filters .tab{display:flex;align-items:center;gap:7px;min-height:44px}.practice-filters .tab span{font-size:10px;opacity:.75}.practice-count{font-size:12px;color:var(--muted);margin-bottom:20px}.practice-switcher{display:grid;grid-template-columns:minmax(0,1fr) minmax(260px,1fr);align-items:center;gap:20px;padding:18px 22px;margin-bottom:22px;border:1px solid var(--line);border-radius:14px;background:var(--paper)}.practice-switcher>div{min-width:0}.current-practice-title{font-size:17px;font-weight:600;margin-top:8px;overflow-wrap:anywhere}.practice-select-field .field-label{margin:0 0 5px}.practice-select-field select{width:100%;min-width:0;font-size:13px;min-height:44px}.practice-select-field .small{font-size:11px;margin-top:5px}
@media(max-width:600px){.practice-filters{gap:5px}.practice-filters .tab{padding:7px 10px;gap:4px;flex:1;justify-content:center}.practice-switcher{grid-template-columns:1fr;gap:13px;padding:16px;margin-bottom:17px}.current-practice-title{font-size:16px}.practice-count{margin-bottom:14px}}

.practice-select-row{display:flex;gap:8px;align-items:center}.practice-select-row select{flex:1}.practice-select-row .btn{flex-shrink:0;min-height:44px;padding:9px 15px}


/* Stage 9: individual word illustrations, always hidden during recall. */
.image-collection{display:flex;align-items:center;justify-content:space-between;gap:18px;flex-wrap:wrap;margin-top:14px;padding:20px 22px;border:1px solid #e4d8bb;border-radius:16px;background:#f8f1e3}.image-collection h2{font-size:17px}.image-collection p{margin-top:6px;font-size:12px;color:#7b735f;line-height:1.8}.image-collection>div{flex:1;min-width:200px}.image-collection .btn{flex-shrink:0}.image-badge{display:inline-block;padding:1px 7px;margin-top:6px;border-radius:5px;background:#f5e8cc;color:#806537;font-size:10px;line-height:1.8}.example-badge+.image-badge{margin-left:5px}.vocab-word-heading{display:flex;align-items:center;gap:12px;min-width:0}.vocab-word-copy{min-width:0;flex:1}.word-thumbnail{display:block;width:64px;height:64px;object-fit:contain;flex-shrink:0;border-radius:10px;background:#f8f3e9;border:1px solid #ece4d4}.word-illustration{margin:22px 0;padding:16px;border:1px solid #e8dfcc;border-radius:16px;background:#faf6ed;overflow:hidden}.word-illustration-heading{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:12px}.word-illustration-heading .eyebrow{font-size:9px;letter-spacing:1.5px}.word-illustration-heading .image-badge{margin:0;flex-shrink:0}.word-illustration-image{display:block;width:100%;max-width:560px;height:auto;max-height:420px;object-fit:contain;border-radius:10px;margin:0 auto}.word-illustration figcaption{font-size:12px;line-height:1.9;color:#746c59;margin:12px 0 0;overflow-wrap:anywhere}.word-illustration figcaption strong{display:block;color:#536b48;font-size:11px;margin-bottom:3px}
@media(max-width:600px){.image-collection{padding:17px}.image-collection>div{min-width:0;flex-basis:100%}.vocab-word-heading{gap:8px;align-items:flex-start}.word-thumbnail{width:48px;height:48px;border-radius:8px}.word-illustration{padding:12px;margin:18px 0}.word-illustration-image{max-height:320px}.word-illustration-heading{gap:8px}}