/* Nightline presentation layer; original engine, DOM, state visibility and board geometry retained. */
@font-face{font-family:Nightline Sans;src:url('./fonts/dmsans.woff2') format('woff2');font-style:normal;font-weight:100 900;font-display:swap}
@font-face{font-family:Nightline Display;src:url('./fonts/spacegrotesk.woff2') format('woff2');font-style:normal;font-weight:100 900;font-display:swap}
:root{
 --bg:#10162a;--surface:#17213a;--surface-raised:#1d2b49;--text:#dce6ff;--text-muted:#aebddd;--ink:var(--text);--muted:var(--text-muted);--faint:#a2b1d1;--line-ui:#40506e;--hair:#40506e;--hair-soft:#2f3e5c;
 --accent:#8ba9ff;--accent-soft:#253d72;--accent-wash:#23365b;--accent-path:#f3bb6533;--line:#f3bb65;--selected-ink:#10162a;--snake-ink:#10162a;--tile:#23375f;--tile-border:#536b99;--tile-hover:#304b80;--found:#59401d;--found-ink:#ffe3b6;--brand-pop:#f3bb65;--flag-gold:#f3bb65;--gold-text:#f3bb65;--danger:#ffabae;--success:#a9bfff;--overlay:#080d1dcc;
 --nightline-primary:#3153c7;--nightline-primary-hover:#2845ac;--nightline-primary-ink:#fff;--nightline-route:#1c3263;--nightline-route-ink:#e9efff;--nightline-route-muted:#bacdf7;--nightline-route-line:#7899ed;--nightline-selection:#f3bb65;--nightline-selection-ink:#17213b;
 --font:"Nightline Sans","Archivo Turkish","Noto Sans Georgian","Archivo",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Arial,"BPG Glaho",Sylfaen,sans-serif,"Apple Color Emoji","Segoe UI Emoji";--mono:var(--font);--serif:"Nightline Display","Archivo Turkish","Noto Sans Georgian",var(--font);--touch-min:48px;--app-max:1320px;--radius-card:18px;--elev-tile:0 3px 7px #050a1733;--elev-card:0 5px 18px #050a1722;--shadow-raised:0 10px 35px #050a1744;
}
html[data-theme="hell"]{
 color-scheme:light;--bg:#f4f6fb;--surface:#fff;--surface-raised:#fff;--text:#17213b;--text-muted:#52617d;--ink:var(--text);--muted:var(--text-muted);--faint:#596984;--line-ui:#bac7df;--hair:#c6d1e4;--hair-soft:#dce4f1;--accent:#3153c7;--accent-soft:#e4ebff;--accent-wash:#e9efff;--accent-path:#f3bb6544;--line:#c08426;--selected-ink:#17213b;--snake-ink:#17213b;--tile:#fff;--tile-border:#aebedb;--tile-hover:#e9efff;--found:#ffe0aa;--found-ink:#533807;--gold-text:#835000;--brand-pop:#f3bb65;--flag-gold:#f3bb65;--danger:#b5253d;--success:#3153c7;--overlay:#10162a99;--nightline-route:#dce6ff;--nightline-route-ink:#17213b;--nightline-route-muted:#465c8b;--nightline-route-line:#6688da;--elev-tile:0 3px 7px #243f6a0c;--elev-card:0 5px 18px #243f6a0a;--shadow-raised:0 10px 35px #243f6a22;
}
html,body,.app[data-ui-state="solved"]{background:var(--bg);color:var(--text)}html{scrollbar-color:var(--line-ui) var(--bg)}body{font-family:var(--font)}::selection{background:#f3bb65;color:#10162a}input,textarea{caret-color:var(--accent)}a{text-underline-offset:4px}button,input,select,textarea{font-family:var(--font)}
:where(button,a,input,select,textarea,summary):focus-visible{outline:3px solid var(--accent);outline-offset:4px}
:where(button,.btn-primary,.btn-secondary,.btn-ghost,.link-btn,input:not([type="checkbox"]):not([type="radio"]),select){min-height:48px}
:where(button,.btn-primary,.btn-secondary,.btn-ghost){border-radius:10px}
.btn-primary,.setup-quick-start,.solve-next{background:var(--nightline-primary);color:var(--nightline-primary-ink);border:1px solid var(--nightline-primary);box-shadow:none}
.btn-primary:hover,.setup-quick-start:hover,.solve-next:hover{background:var(--nightline-primary-hover);color:#fff;filter:none}
.btn-secondary,.btn-ghost,.gear-btn,.account-chip,.play-exit-btn{background:var(--surface);color:var(--text);border-color:var(--line-ui)}
.btn-secondary:hover,.btn-ghost:hover,.gear-btn:hover,.account-chip:hover,.play-exit-btn:hover{background:var(--accent-wash);color:var(--text);border-color:var(--accent)}
.app{gap:20px;padding-top:20px}.play-header{min-height:76px;padding:10px 0 20px;border-bottom:1px solid var(--line-ui);background:var(--bg);gap:20px}.app-nav{gap:5px}.app-nav-link{min-height:48px;padding:10px 16px;border-radius:9px;color:var(--text-muted)}.app-nav-link[aria-current="page"]{background:var(--nightline-primary);color:#fff;box-shadow:none}.app-nav-link:hover{background:var(--accent-wash);color:var(--text)}.app-nav-link[aria-current="page"]:hover{background:var(--nightline-primary-hover);color:#fff}.gear-btn,.help-btn,.play-exit-btn{width:48px;height:48px}.nightline-brand{display:inline-flex;align-items:center;gap:10px;color:var(--text);font-family:var(--serif);font-size:24px;font-weight:600;letter-spacing:-.035em;text-decoration:none;white-space:nowrap}.nightline-brand svg{width:40px;height:40px;flex-shrink:0;stroke:#f3bb65}.nightline-brand svg circle{fill:var(--bg)}html[data-theme="hell"] .nightline-brand svg{stroke:#3153c7}.nightline-tools{display:flex;align-items:center;justify-content:flex-end;gap:12px;flex-wrap:wrap;padding:2px 0 12px}.nightline-tools label{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--text-muted)}.nightline-tools select,.nightline-tools button{background:var(--surface);color:var(--text);border:1px solid var(--line-ui);padding:10px 14px;border-radius:9px;max-width:100%}.nightline-tools button:hover{background:var(--accent-wash)}
/* The only removed surfaces are decorative marks/backgrounds, not learning information. */
.brand-hero,.brand-snake-stage,#asciiBg,.ascii-bg,canvas.ascii-background{display:none!important}
.setup-panel:not([hidden]){max-width:1180px;width:100%;display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,1fr);column-gap:54px;row-gap:20px;padding:12px 0 45px;align-items:start;text-align:left}
.setup-panel>.nightline-route{grid-column:1;grid-row:1 / span 5;order:0;align-self:stretch}.setup-panel>.setup-lang{grid-column:2;grid-row:1;order:1;margin:0}.setup-panel>.setup-title{grid-column:2;grid-row:2;order:2;margin:12px 0 0}.setup-panel>.setup-sub{grid-column:2;order:3}.setup-panel>.setup-quick-start{grid-column:2;grid-row:3;order:4;margin:0;width:100%}.setup-panel>.level-grid{grid-column:2;grid-row:4;order:5;margin:0}.setup-panel>.setup-persona-topic{grid-column:2;order:6}.setup-panel>.topic-block{grid-column:1 / -1;order:7;margin:20px 0 0}
.nightline-route{padding:42px 38px;border:1px solid color-mix(in srgb,var(--nightline-route-line) 38%,transparent);border-radius:24px;background:var(--nightline-route);color:var(--nightline-route-ink);min-width:0;position:relative;overflow:hidden}.nightline-route h1{font:500 clamp(36px,4.4vw,62px)/1.04 var(--serif);letter-spacing:-.035em;margin:0 0 22px;max-width:11ch;text-wrap:balance}.nightline-route p{color:var(--nightline-route-muted);font-size:16px;line-height:1.6;max-width:36ch;margin:0 0 30px}.nightline-route ol,.nightline-stations{list-style:none;margin:36px 0 0;padding:0;display:flex;flex-direction:column;gap:0;counter-reset:station}.nightline-route li,.nightline-station{position:relative;counter-increment:station;padding:0 0 34px 52px;min-height:80px;line-height:1.5;color:var(--nightline-route-ink)}.nightline-route li::before,.nightline-station::before{content:counter(station);position:absolute;left:0;top:0;width:32px;height:32px;border:2px solid var(--nightline-route-line);border-radius:50%;display:grid;place-items:center;background:var(--nightline-route);font-size:13px;font-weight:600;z-index:1}.nightline-route li::after,.nightline-station::after{content:"";position:absolute;left:15px;top:31px;bottom:0;width:2px;background:var(--nightline-route-line)}.nightline-route li:last-child::after,.nightline-station:last-child::after{display:none}.nightline-route li:first-child::before,.nightline-station:first-child::before{background:#f3bb65;border-color:#f3bb65;color:#10162a}.nightline-route li strong,.nightline-station strong{display:block;font-size:18px;font-weight:500;margin-bottom:4px}.nightline-route li p,.nightline-route li small,.nightline-route li span,.nightline-station p,.nightline-station small{font-size:14px;color:var(--nightline-route-muted);line-height:1.5;margin:0;display:block}.setup-title{font:500 27px/1.2 var(--serif);letter-spacing:-.025em}.setup-lang-label,.topic-title{color:var(--text-muted);font-size:14px;font-weight:500}.setup-lang-options{gap:8px;flex-wrap:wrap}.setup-lang-option{border-radius:8px;min-height:48px;padding:0 14px;background:var(--surface);color:var(--text);border-color:var(--line-ui)}.setup-lang-option[aria-pressed="true"]{background:var(--accent-wash);color:var(--text);border-color:var(--accent)}
.level-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;background:none;border:0;overflow:visible;border-radius:0}.level-grid>.level-card{display:grid;grid-template-columns:1fr auto;grid-template-rows:auto auto auto;gap:5px;padding:17px 18px;min-height:142px;align-items:start;background:var(--surface);border:1px solid var(--line-ui);border-radius:14px;box-shadow:var(--elev-card)}.level-grid>.level-card:last-child{border-bottom:1px solid var(--line-ui)}.level-card .level-badge{grid-column:1;grid-row:1;min-width:0;font:500 25px/1.2 var(--serif);color:var(--accent);margin-bottom:2px}.level-card .level-name{grid-column:1 / -1;grid-row:2;font-size:15px;font-weight:500}.level-card .level-desc{grid-column:1 / -1;grid-row:3;font-size:13px;line-height:1.45}.level-card .level-count{grid-column:2;grid-row:1;font-size:12px;color:var(--text-muted)}.level-grid>.level-card:hover,.level-card.is-selected,.level-card[aria-pressed="true"]{background:var(--accent-wash);border-color:var(--accent);transform:none}.topic-title{font:500 24px/1.2 var(--serif);color:var(--text);margin-bottom:18px}.topic-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;overflow:visible;background:none;border:0;border-radius:0}.topic-grid>*{background:var(--surface);border:1px solid var(--line-ui);border-radius:12px;padding:18px;min-height:82px}.topic-grid>*:last-child{border-bottom:1px solid var(--line-ui)}
/* Preserve resizeGrid's width-driven metrics, existing board areas and source order. */
.app[data-ui-state="playing"] .play-layout{margin-block:20px;column-gap:38px}.board-caption{font-family:var(--font);font-size:14px;line-height:1.5;color:var(--text-muted)}.grid-wrap{background:none;box-shadow:none}.cell{font-family:var(--serif);font-weight:500;background:var(--tile);color:var(--text);border:1px solid var(--tile-border);border-radius:12px;box-shadow:var(--elev-tile)}.cell:hover{background:var(--tile-hover)}.cell.selected{background:var(--nightline-selection);border-color:var(--nightline-selection);color:var(--nightline-selection-ink);box-shadow:none}.cell.locked{background:var(--found);color:var(--found-ink)}.word-rail{background:var(--surface);border:1px solid var(--line-ui);border-radius:16px;padding:22px}.word-rail-title{font-family:var(--serif);font-size:20px;letter-spacing:-.02em}.word-rail-hint{font-size:13px;line-height:1.5;color:var(--text-muted)}.word-slot .sq{background:var(--bg);border:1px solid var(--line-ui);color:var(--text);border-radius:5px}.word-slot .sq.done{background:var(--found);color:var(--found-ink);border-color:var(--found)}.wortkarte-card,.rail-card{background:var(--surface);border:1px solid var(--line-ui);border-radius:16px;box-shadow:var(--elev-card)}.wcard .wcard-word,.wcard .lesson-word,.review-word{font-family:var(--serif);letter-spacing:-.025em}.wcard .lesson-speak{min-width:48px;min-height:48px;color:var(--accent);border-color:var(--line-ui)}.wcard .lesson-example{font-family:var(--font);line-height:1.6}.coach,.article-probe{background:var(--accent-wash);color:var(--text);border-color:var(--line-ui);border-radius:10px}.status{font-size:14px;color:var(--text-muted)}.progress-bar{background:var(--hair-soft);height:4px}.progress-fill{background:var(--accent)}.play-action-bar{gap:12px}.play-action-bar #hintBtn{min-height:48px;background:var(--surface);border:1px solid var(--line-ui);color:var(--text)}.play-action-bar #hintBtn:hover{background:var(--accent-wash);border-color:var(--accent)}
.section-view{padding-top:20px}.section-head{margin-bottom:26px}.section-title{font:500 34px/1.2 var(--serif);letter-spacing:-.03em}.woerter-search,.woerter-sort,.woerter-levels button{min-height:48px;background:var(--surface);color:var(--text);border:1px solid var(--line-ui);border-radius:9px}.woerter-search::placeholder{color:var(--text-muted);opacity:1}.dict-card,.review-card,.fortschritt-review,.stat-tiles,.lb-week-card,.solve-haul,.solve-feedback,.solve-a2hs,.solve-share-nudge,.solve-pulse{background:var(--surface);border:1px solid var(--line-ui);border-radius:16px;box-shadow:var(--elev-card)}.dict-word,.review-word{color:var(--text)}.review-card{padding:32px}.review-ratings button{min-height:48px}.review-progress{color:var(--text-muted)}.section-empty{padding:35px 20px}.section-empty-title{font:500 27px/1.2 var(--serif)}.section-empty-body{color:var(--text-muted);line-height:1.6}.stat-n,.stat-tile-value,.solve-stat-n{font-family:var(--serif);font-variant-numeric:tabular-nums}.stat-tile,.solve-stat{background:transparent}.solve-title{font-family:var(--serif)!important;font-size:clamp(32px,4vw,48px)!important;letter-spacing:-.035em}.solve-sub{font-size:14px;line-height:1.5}
.modal,.modal-card,.gear-menu,.gear-menu-panel,.toast{background:var(--surface-raised);color:var(--text);border-color:var(--line-ui);box-shadow:var(--shadow-raised)}.modal,.modal-card{border-radius:20px}.modal h2,.gear-menu-title{font-family:var(--serif);letter-spacing:-.025em}.modal-backdrop,.gear-backdrop{background:var(--overlay)}.gear-menu-list>button,.gear-lang button,.gear-menu-close{min-height:48px;color:var(--text)}.gear-menu-list>button:hover,.gear-lang button:hover{background:var(--accent-wash);color:var(--text)}.gear-menu-group-label{color:var(--text-muted);font-size:13px;letter-spacing:0;text-transform:none}.modal input,.modal textarea,.share-box input,.solve-feedback-text{background:var(--bg);color:var(--text);border:1px solid var(--line-ui);border-radius:8px}.modal input::placeholder,.modal textarea::placeholder{color:var(--text-muted);opacity:1}.modal .note{color:var(--text-muted);line-height:1.5}.modal .close-btn,.gear-menu-close{width:48px;height:48px}.toast{border:1px solid var(--line-ui);border-radius:14px}.storage-notice{background:var(--found);color:var(--found-ink);border:1px solid var(--line-ui);border-radius:10px}.storage-notice button{color:inherit;min-height:48px}.nightline-route :where(a,button):focus-visible{outline-color:#f3bb65}
@media(max-width:1100px){.setup-panel:not([hidden]){column-gap:28px}.nightline-route{padding:32px 28px}.play-header{gap:12px}.app-nav-link{padding-inline:11px}.app[data-ui-state="playing"] .play-layout{column-gap:22px}.nightline-route h1{font-size:46px}}
@media(max-width:800px){.setup-panel:not([hidden]){grid-template-columns:minmax(0,1fr);gap:18px;max-width:640px}.setup-panel>.nightline-route{grid-column:1;grid-row:auto;order:0}.setup-panel>.setup-lang,.setup-panel>.setup-title,.setup-panel>.setup-sub,.setup-panel>.setup-quick-start,.setup-panel>.level-grid,.setup-panel>.setup-persona-topic,.setup-panel>.topic-block{grid-column:1;grid-row:auto}.nightline-route{padding:28px}.nightline-route h1{font-size:38px;max-width:16ch}.nightline-route p{font-size:15px;max-width:45ch;margin-bottom:20px}.nightline-route ol,.nightline-stations{margin-top:25px}.nightline-route li,.nightline-station{min-height:68px;padding-bottom:22px}.topic-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.play-header{min-height:65px}.nightline-tools{justify-content:flex-start}.section-title{font-size:29px}}
@media(max-width:720px){.app{padding-top:12px;gap:12px}.play-header{padding-bottom:12px;gap:8px}.app-nav{background:var(--surface);border-top:1px solid var(--line-ui)}.app-nav-link{min-height:56px;border-radius:8px;padding:7px 5px;font-size:12px}.app-nav-link[aria-current="page"]{background:var(--nightline-primary);color:#fff}.app-nav-link:hover{background:var(--accent-wash);color:var(--text)}.app-nav-link[aria-current="page"]:hover{background:var(--nightline-primary-hover);color:white}.nightline-brand{font-size:22px;gap:8px}.nightline-brand svg{width:34px;height:34px}.nightline-tools{gap:8px;padding-bottom:5px}.nightline-tools label{font-size:12px;gap:6px;flex:1}.nightline-tools select{min-width:0;max-width:160px;flex:1;padding-inline:8px}.nightline-tools button{padding-inline:10px}.setup-panel:not([hidden]){padding-top:4px}.nightline-route{border-radius:18px;padding:26px 24px}.nightline-route h1{font-size:36px;max-width:12ch}.nightline-route ol,.nightline-stations{margin-top:22px}.nightline-route li strong,.nightline-station strong{font-size:17px}.nightline-route li p,.nightline-route li small,.nightline-route li span,.nightline-station p,.nightline-station small{font-size:13px}.setup-title{font-size:25px}.setup-lang-options{gap:7px}.setup-lang-option{padding-inline:11px;font-size:13px}.level-grid{gap:9px}.level-grid>.level-card{padding:15px 13px;min-height:145px}.level-card .level-count{font-size:12px}.level-card .level-desc{font-size:13px}.level-card .level-name{font-size:14px}.topic-grid{grid-template-columns:1fr}.topic-grid>*{min-height:76px}.app[data-ui-state="playing"] .play-layout{margin-block:4px;gap:14px}.cell{border-radius:9px}.word-rail{padding:16px;border-radius:12px}.word-rail-title{font-size:18px}.play-action-bar{background:var(--bg)}.wortkarte-card{border-radius:16px}.section-view{padding-top:12px}.section-title{font-size:28px}.review-card{padding:24px 20px}.modal,.modal-card{border-radius:18px}.gear-menu-panel{padding-bottom:env(safe-area-inset-bottom,0px)}}
@media(max-width:370px){.nightline-tools{align-items:stretch}.nightline-tools label{flex-basis:100%}.nightline-tools select{max-width:none}.nightline-route{padding:24px 19px}.nightline-route h1{font-size:32px}.level-grid{grid-template-columns:1fr}.level-grid>.level-card{min-height:115px}.play-header-tools{gap:4px}}
@media(prefers-reduced-motion:reduce){.nightline-route,.level-card,.topic-grid>*,.cell,.modal,.modal-card{animation:none!important;transition:none!important;scroll-behavior:auto}}
/* Full-engine shell hooks supplied by the parent integration. */
.nightline-route h1{white-space:pre-line}.nightline-station h2{font:500 19px/1.3 var(--serif);letter-spacing:-.02em;margin:2px 0 7px}.nightline-route .nightline-station::before{display:none}.nightline-route .nightline-station>span:first-child{position:absolute;left:0;top:0;display:grid;place-items:center;width:32px;height:32px;border:2px solid var(--nightline-route-line);border-radius:50%;background:var(--nightline-route);color:var(--nightline-route-ink);font-size:13px;font-weight:600;z-index:1}.nightline-route .nightline-station:first-child>span:first-child{background:#f3bb65;border-color:#f3bb65;color:#10162a}.nightline-brand svg{color:#f3bb65;fill:currentColor}.nightline-brand svg circle{fill:currentColor}html[data-theme="hell"] .nightline-brand svg{color:#3153c7}.nightline-dot{color:var(--gold-text)}.gear-menu-list>.nightline-tools{justify-content:space-between;padding:14px 0 18px;border-bottom:1px solid var(--line-ui);margin-bottom:10px}.gear-menu-list>.nightline-tools label{flex:initial;color:var(--text);font-size:14px}.gear-menu-list>.nightline-tools select{width:145px;max-width:55%}
.nightline-brand{flex-direction:row;align-items:center}.setup-quick-start{max-width:none}.level-card .level-badge{text-align:left}
@media(max-width:720px){.nightline-route{padding:23px 20px}.nightline-route h1{font-size:32px;margin-bottom:13px;max-width:16ch}.nightline-route>p{margin-bottom:16px;font-size:14px}.nightline-route .nightline-stations{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:15px;margin-top:18px}.nightline-route .nightline-station{padding:40px 0 0;min-height:0}.nightline-station h2{font-size:15px;margin-bottom:5px}.nightline-route .nightline-station>p{font-size:12px;line-height:1.45}.nightline-route .nightline-station::after{left:32px;right:-15px;top:15px;bottom:auto;width:auto;height:2px}.nightline-route .nightline-station>span:first-child{font-size:12px}.nightline-route .nightline-station:last-child::after{display:none}}
.play-header h1.nightline-brand{flex-direction:row;align-items:center;gap:10px;font-family:var(--serif);font-size:24px;line-height:1.1}.level-card .level-badge{justify-content:flex-start}.intro-start{background:var(--nightline-primary);color:#fff;border-color:var(--nightline-primary)}.intro-start:hover{background:var(--nightline-primary-hover);filter:none}
@media(max-width:720px){.play-header h1.nightline-brand{font-size:21px;gap:7px}.play-header h1.nightline-brand svg{width:32px;height:32px}}
.cell.guide-path.selected{background:var(--nightline-selection);color:var(--nightline-selection-ink);border-color:var(--nightline-selection);text-shadow:none}.cell.selected{ text-shadow:none }

/* Appearance is now owned by the three-way selector. */
#themeToggleBtn[hidden]{display:none!important}