.chips-field>.chips-title{display:block;margin:0 0 6px;font-size:12.5px;font-weight:650;line-height:1.4;color:var(--muted);letter-spacing:.01em}.chips{display:flex;flex-wrap:wrap;align-items:center;gap:8px;min-width:0;margin:0;padding:0;border:0}.chips-vertical{flex-direction:column;flex-wrap:nowrap;align-items:stretch}.chips-vertical .chip-option{width:100%}.chips.is-disabled{opacity:.55}.chips .chip-option{position:relative;display:inline-flex;align-items:center;gap:8px;max-width:100%;min-width:0;min-height:34px;margin:0;padding:4px 12px;border:1px solid var(--line);border-radius:10px;background:var(--card);color:var(--ink);font:inherit;font-size:13px;font-weight:600;line-height:1.3;cursor:pointer;box-sizing:border-box;transition:background .15s,border-color .15s,box-shadow .15s,transform .15s}.chips .chip-option:hover:not(.is-disabled){border-color:var(--accent);transform:translateY(-1px)}.chips .chip-option:focus-within,.chips button.chip-option:focus-visible{outline:3px solid color-mix(in srgb,var(--accent) 40%,transparent);outline-offset:1px}.chips .chip-option.is-active{border-color:var(--accent);color:var(--accent-strong);background:linear-gradient(135deg,color-mix(in srgb,var(--accent) 16%,var(--card)),var(--accent-soft));box-shadow:0 1px color-mix(in srgb,var(--accent) 30%,transparent),0 3px 10px -6px var(--accent)}.chips .chip-option.is-disabled{opacity:.5;cursor:not-allowed}.chips .chip-option input{flex:0 0 auto;width:16px;height:16px;margin:0;accent-color:var(--accent)}.chips .chip-body{display:inline-flex;align-items:center;gap:8px;min-width:0}.chips .chip-label{min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.chips .chip-label small{margin-left:6px;font-size:11px;font-weight:400;color:var(--muted)}.chips .chip-exclusive{border-style:dashed}.chips .chip-exclusive.is-active{border-style:solid}.chips-card .chip-option{flex-direction:column;align-items:stretch;gap:6px;padding:8px 10px;min-width:96px}.chips-card .chip-option input{position:absolute;top:8px;left:8px}.chips-card .chip-body{flex-direction:column;align-items:stretch;gap:6px}.chips-card .chip-preview{display:grid;place-items:center;min-height:44px;border-radius:8px;overflow:hidden}.chips-card .chip-label{text-align:center;font-size:12px}.chips.font-picker{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:10px}.chips.font-picker .chip-option{padding:6px 12px}.chips.font-picker .chip-body{display:grid;grid-template-columns:minmax(0,1fr);gap:0;min-width:0}.chips.font-picker .chip-preview{display:block;min-height:0;font-size:20px;line-height:1.3;letter-spacing:.06em;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.chips.font-picker .chip-label{font-size:12px;font-weight:650}.chip-actions{display:inline-flex;flex:0 0 auto;flex-wrap:nowrap;gap:8px;align-items:center}.chips[data-actions=below]+.chip-actions{display:flex;margin-top:8px}.chip-actions .chip-action{min-height:34px;padding:4px 12px;border:1px solid var(--line);border-radius:10px;background:var(--card);color:var(--ink);font:inherit;font-size:12px;font-weight:650;cursor:pointer}.chip-actions .chip-action:hover:not(:disabled){border-color:var(--accent);background:var(--accent-soft);color:var(--accent-strong)}.chip-actions .chip-action:disabled{opacity:.5;cursor:not-allowed}@media(prefers-reduced-motion:reduce){.chips .chip-option{transition:none}.chips .chip-option:hover:not(.is-disabled){transform:none}}.settings-sections{display:block!important}.settings-section{display:block;min-width:0;margin:16px 0;padding:14px;border:1px solid var(--line);border-radius:10px}.settings-section legend{padding:0 6px;font-weight:700}.settings-section-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,210px),1fr));align-items:end;gap:16px}.setting-unavailable{color:var(--muted)}.setting-unavailable input,.setting-unavailable select{opacity:.55;cursor:not-allowed}.setting-availability{display:block;font-size:11px;font-weight:400;line-height:1.5;color:var(--muted)}.setting.check:has(.setting-availability),.check-label:has(.setting-availability),.cw-switch:has(.setting-availability){flex-wrap:wrap}.setting.check>.setting-availability,.check-label>.setting-availability,.cw-switch>.setting-availability{flex-basis:100%}.settings-section-grid>label{min-width:0;margin:0}.settings-section-grid>:is(.check-label,.setting.check,.cw-switch){min-height:44px;align-self:end;align-content:center}#answerOptions.study-pills{display:flex;flex-wrap:wrap;gap:8px;margin:8px 0}#answerOptions.study-pills button{border:1px solid var(--line);border-radius:10px;background:var(--card);color:var(--ink);padding:8px 14px;font:inherit;cursor:pointer}#answerOptions.study-pills button[aria-pressed=true]{background:var(--accent-soft);border-color:var(--accent);color:var(--accent-strong);font-weight:700}#answerOptions.study-pills button:disabled{opacity:.5;cursor:not-allowed}.study-confirm-dialog{width:min(520px,calc(100vw - 32px));max-height:85vh;overflow:auto;box-sizing:border-box;padding:24px;border:1px solid var(--line);border-radius:16px;background:var(--card);color:var(--ink)}.study-confirm-dialog::backdrop{background:#0009}.study-confirm-dialog h2{font-size:20px;margin:0 0 12px}.reset-defaults{display:flex;justify-content:flex-end;padding:10px 14px 12px;border-top:1px solid var(--line, #e5e7eb)}.reset-defaults-button{min-height:34px;font-size:13px}.reset-defaults.reset-defaults-inline{display:inline-flex;padding:0;border:0;background:none;justify-content:flex-end}header.study-header{display:grid;grid-template-columns:minmax(0,1fr) auto;align-items:center;flex:0 0 auto;height:auto;min-height:64px;gap:10px;padding:12px 0;border-bottom:1px solid var(--line);margin:0}.study-header .brand,.study-header .cw-brand{min-width:0;max-width:100%;grid-row:1;grid-column:1;justify-self:start}.study-header .brand,.study-header .cw-brand{display:flex;align-items:center;gap:10px;color:var(--ink);text-decoration:none}.study-header .brand-note,.study-header .cw-brand-note,.study-header .brand-sub{margin-left:6px;color:var(--muted);font-size:.72em;font-weight:500;letter-spacing:0}.study-header .brand-mark,.study-header .cw-brand-mark{display:grid;place-items:center;flex:0 0 36px;width:36px;height:36px;border-radius:11px;background:var(--accent);color:var(--page);font:23px/1 Georgia,serif}.study-header .brand-name,.study-header .cw-brand-name{min-width:0;font:750 18px/1.3 system-ui,sans-serif;letter-spacing:-.035em;overflow:hidden;white-space:nowrap;text-overflow:ellipsis}.study-embedded .brand,.study-embedded .cw-brand{max-width:calc(50vw - 48px)}.study-header-description{grid-row:2;grid-column:1 / -1;margin:0;color:var(--muted);font:400 12px/1.4 system-ui,sans-serif}.study-toolbar{grid-row:3;grid-column:1 / -1;display:flex;align-items:center;gap:8px}.study-toolbar button,.study-audio{border:1px solid var(--line);border-radius:10px;background:var(--card, #222923);color:var(--ink);padding:9px 12px;font:700 13px/1.4 system-ui,sans-serif;cursor:pointer}.study-toolbar>button{display:inline-flex;flex:1 1 0;min-width:0;width:auto;height:44px;min-height:44px;padding:4px 7px;white-space:normal}.study-toolbar button[aria-pressed=true]{background:var(--accent-soft, #2e4033)}.study-toolbar [hidden]{display:none!important}.study-romaji{display:block;font:400 12px/1.5 system-ui,sans-serif;color:var(--muted)}.study-japanese ruby{ruby-position:over}.study-japanese rt{font-size:.5em}:root[data-japanese-font] [lang=ja]{font-family:var(--study-jp-font),"Yu Gothic",Meiryo,sans-serif}:root[data-study-furigana=false] .study-japanese rt{display:none}:root[data-study-romaji=false] .study-romaji{display:none}:root[data-study-audio=false] .study-audio,:root[data-study-audio=false] [data-audio]{display:none}@media(min-width:1100px){header.study-header{grid-template-columns:minmax(0,1fr) auto auto}.study-toolbar{grid-row:3;grid-column:1 / -1;display:flex}.study-toolbar>button{flex:0 0 auto;width:auto;white-space:nowrap}.study-theme{grid-column:3}}@media(max-width:430px){.study-toolbar{gap:5px}.study-toolbar button{padding:4px;font-size:11px}}.study-reading{display:inline-flex;align-items:center;flex-wrap:wrap;gap:.3rem;margin:.2rem .65rem .2rem 0}.font-preview{display:grid;gap:4px;background:var(--soft);border:1px solid var(--line);border-radius:8px;padding:8px;margin-top:6px;text-align:center}.font-preview-sample{font-size:20px}.font-preview-name{color:var(--muted);font:11px/1.5 system-ui}.study-intro{display:flex;align-items:center;justify-content:space-between;gap:1.5rem;width:100%}.study-intro-content{flex:1;min-width:0;text-align:left}body .study-intro-content>:is(h1,h2,p){margin-left:0;margin-right:0;text-align:left}body .study-intro-content>:is(.eyebrow,.cw-eyebrow){color:var(--text-warm)}body .study-intro-content .study-contribute a:first-of-type{color:var(--text-blue);text-decoration:underline}body .study-intro-content .study-contribute a:last-of-type{color:var(--text-plum);text-decoration:underline}body :is(.shell,.cw-shell,.practice-shell){width:min(calc(100% - 40px),1280px);max-width:1280px;margin-inline:auto;padding-inline:0}body :is(#settingsPanel,#settingsDrawer,.puzzle-settings)>summary,body details:has(>#settings)>summary{color:var(--accent-strong);font-size:16px;font-weight:750;padding:12px 0}body :is(.shell,.cw-shell,.practice-shell)>main{padding-inline:0}body .main-column{width:100%}body :is(.settings-body,.cw-settings-grid){padding-inline:16px}.study-support{flex:0 0 auto;margin-left:auto}.study-support form{display:inline-grid;justify-items:center;align-content:start;gap:.5rem}.study-support .pp-BGUN4RBRVZKKJ{display:inline-flex;gap:7px;text-align:center;border:none;border-radius:8px;min-width:0;padding:0 14px;height:44px;font:700 13px/1.2 Helvetica Neue,Arial,sans-serif;background:#ffd140;color:#000;cursor:pointer}.study-support button img{width:20px;height:20px;object-fit:contain;flex:0 0 20px}.study-support form>img{width:160px;height:auto}.study-support span{font-size:.75rem}.study-support span img{height:.875rem;vertical-align:middle}.study-support .study-support-brand{display:none}.study-support .study-support-label{font:inherit;color:#000}@media(max-width:600px){body :is(.shell,.cw-shell,.practice-shell){width:calc(100% - 24px)}.study-intro{flex-direction:column;gap:.75rem}.study-intro-content{width:100%}.study-support form{gap:0}.study-support form>img,.study-support form>span{display:none}.study-support .pp-BGUN4RBRVZKKJ{display:inline-flex;min-height:44px;height:44px;padding:0 10px;font-size:12px}.study-support .study-support-brand{display:block;padding:0 9px;border-radius:4px 0 0 4px;background:#555;color:#fff;font:inherit}.study-support .study-support-label{padding:0 10px;border-radius:0 4px 4px 0;background:#ffd140;color:#000}}@media(max-width:760px){#shortcutHint,.shortcut-hint,.option-key,.quiz-shortcut{display:none!important}}body:not([data-quiz-mode=multiple]) .quiz-shortcut,body:not([data-quiz-mode=multiple]) .option-key,body:not([data-quiz-mode=multiple]) #shortcutHint{display:none!important}header.study-embedded{grid-template-columns:minmax(0,1fr) auto}.study-embedded .study-appearance{grid-column:2}.study-embedded .study-toolbar{grid-row:3;grid-column:1 / -1}@media(max-width:600px){.study-embedded .study-appearance{grid-row:1;grid-column:2;justify-self:end}}@supports (appearance: base-select){@media(max-width:850px){body select:not([multiple]):not([size]),body select:not([multiple]):not([size])::picker(select){appearance:base-select}body select:not([multiple]):not([size]){align-items:center;gap:8px;white-space:normal}body select:not([multiple]):not([size])::picker(select){position:fixed;inset:auto;position-area:block-end span-inline-end;position-try-order:most-block-size;position-try-fallbacks:flip-block,flip-inline,flip-block flip-inline;margin:6px 0;min-inline-size:anchor-size(inline);max-inline-size:min(28rem,calc(100vw - 16px));max-block-size:min(20rem,calc(100% - 12px));overflow:auto;overscroll-behavior:contain;padding:4px;border:1px solid var(--line);border-radius:10px;background:var(--card);color:var(--ink);box-shadow:var(--shadow);font:400 16px/1.4 system-ui,sans-serif}body select:not([multiple]):not([size]) option{min-block-size:44px;padding:10px 12px;border-radius:6px;white-space:normal;overflow-wrap:anywhere}body select:not([multiple]):not([size]) option:checked,body select:not([multiple]):not([size]) option:focus{background:var(--accent-soft);color:var(--accent-strong)}body select:not([multiple]):not([size]) option:disabled{color:var(--muted);opacity:.6}}}body :is(details,.ui-panel){--ui-fs: 13px;--ui-title-fs: 12.5px;--ui-ctl-h: 38px;--ui-btn-h: 34px;--ui-gap: 16px;--ui-title-h: 24px}body :is(details,.ui-panel) :is(label,legend,summary,p,small,span,div,button,select,input){font-size:var(--ui-fs)}body :is(details,.ui-panel) :is(.small,small,.setting-availability,.study-settings-note,.font-chip-name small){font-size:11.5px}body :is(details,.ui-panel) :is(legend,summary){font-weight:700;color:var(--accent-strong);letter-spacing:0}body :is(details,.ui-panel) legend{padding:0 8px}body :is(details,.ui-panel) :is(label:has(>:is(select,input:not([type=checkbox]):not([type=radio]),textarea))>span:not(.setting-availability),.font-field>label,.level-field>label,.field-label,.cw-field>span){display:block;margin:0 0 6px;font-size:var(--ui-title-fs);font-weight:650;line-height:1.4;color:var(--muted);letter-spacing:.01em}body :is(details,.ui-panel) label:has(>:is(select,input:not([type=checkbox]):not([type=radio]),textarea)){display:block;min-width:0}body :is(details,.ui-panel) :is(select,input:not([type=checkbox]):not([type=radio]),textarea){width:100%;min-width:0;height:var(--ui-ctl-h);min-height:var(--ui-ctl-h);padding:0 12px;border:1px solid var(--line);border-radius:10px;background-color:var(--card);color:var(--ink);font-weight:500;line-height:1.3;box-sizing:border-box}body :is(details,.ui-panel) :is(select,input):focus-visible{outline:3px solid color-mix(in srgb,var(--accent) 45%,transparent);outline-offset:1px;border-color:var(--accent)}body :is(details,.ui-panel) input[type=checkbox],body :is(details,.ui-panel) input[type=radio]{width:17px;height:17px;margin:0;flex:0 0 auto;accent-color:var(--accent)}body :is(details,.ui-panel) :is(.check,.setting.check,.check-label,.cw-switch,label:has(>input[type=checkbox])){display:inline-flex;align-items:center;gap:9px;min-height:var(--ui-ctl-h);margin:0;font-weight:500;line-height:1.35;cursor:pointer}body :is(details,.ui-panel) :is(.settings-grid,.settings-section-grid){display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,210px),1fr));align-items:start;gap:var(--ui-gap);row-gap:22px}body :is(details,.ui-panel) :is(.settings-grid,.settings-section-grid):has(>:is(label,div):not(.check):not(.setting.check)>:is(select,input:not([type=checkbox]),.chips))>:is(.check,.setting.check,.check-label,.cw-switch,label:has(>input[type=checkbox])){margin-top:var(--ui-title-h)}body :is(details,.ui-panel) :is(.settings-grid,.settings-section-grid)>:is(.check,.setting.check,.check-label,.cw-switch){position:relative;flex-wrap:nowrap;align-self:start}body :is(details,.ui-panel) :is(.check,.setting.check,.check-label,.cw-switch):has(>.setting-availability){position:relative}body :is(details,.ui-panel) :is(.check,.setting.check,.check-label,.cw-switch)>.setting-availability{position:static;flex:1 0 calc(100% - 47px);margin:2px 0 0 47px;line-height:1.25}body :is(details,.ui-panel) :is(.settings-grid,.settings-section-grid)>:is(.check,.setting.check,.check-label,.cw-switch):has(>.setting-availability){flex-wrap:wrap;align-content:center}body :is(details,.ui-panel) :is(.settings-grid,.settings-section-grid)>:is(.font-field,.level-field,.chips-field.wide){grid-column:1 / -1}body :is(details,.ui-panel) :is(.settings-grid,.settings-section-grid)>.settings-section{margin:0}body :is(details,.ui-panel) .settings-section{padding:14px 16px 16px;border:1px solid var(--line);border-radius:14px;background:linear-gradient(180deg,color-mix(in srgb,var(--accent-soft) 38%,var(--card)),var(--card))}body :is(details,.ui-panel) .settings-section>h3{margin:0 0 12px;font-size:var(--ui-fs);font-weight:700;color:var(--accent-strong)}body :is(details,.ui-panel) fieldset{min-width:0;border-radius:14px}.chips-field{display:block;min-width:0}body :is(details,.ui-panel) button:not(.primary):hover:not(:disabled){border-color:var(--accent)}body :is(details,.ui-panel).settings .settings-body{display:grid;grid-template-columns:minmax(0,1fr);gap:18px;padding:16px 18px 18px}body :is(details,.ui-panel).settings .settings-body>.study-settings-note{margin:0}body :is(details,.ui-panel) .settings-row{display:flex;flex-wrap:wrap;align-items:flex-start;gap:18px 28px;min-width:0}body :is(details,.ui-panel) .settings-row>*{min-width:0}body :is(details,.ui-panel) .settings-row.has-level{flex-direction:row-reverse;justify-content:flex-end}body :is(details,.ui-panel) .settings-row.has-level>.level-field{flex:0 1 auto}body :is(details,.ui-panel) .settings-row.has-level>label{flex:1 1 220px;max-width:340px}@media(max-width:900px){body :is(details,.ui-panel) .settings-row.has-level{flex-direction:column}body :is(details,.ui-panel) .settings-row.has-level>label{max-width:none;width:100%}}body :is(details,.ui-panel) .cw-switch{padding:0;border:0;background:none}body :is(details,.ui-panel) .cw-switch strong{font-weight:500}body :is(details,.ui-panel) .cw-settings-grid{padding:0;background:none}body :is(details,.ui-panel) .cw-toggle-group{display:flex;flex-wrap:wrap;gap:8px 28px}body :is(details,.ui-panel) .cw-reset-setting{padding:10px 14px;border:1px solid var(--line);border-radius:12px;background:var(--card)}body :is(details,.ui-panel) .level-row{display:flex;flex-wrap:wrap;align-items:flex-start;gap:18px 28px}body :is(details,.ui-panel) .level-row>.level-field{flex:0 1 auto}body :is(details,.ui-panel) .level-row>label{flex:1 1 220px;max-width:340px}body :is(details,.ui-panel) fieldset>.settings-grid>.settings-section{display:grid;gap:14px;align-content:start}body :is(details,.ui-panel) fieldset>.settings-grid>.settings-section>h3{margin:0}body :is(details,.ui-panel) :is(.cw-switch,.cw-reset-setting){min-height:48px!important;min-width:200px}.stats-heading .stats-toggle{min-height:24px!important}body input[type=checkbox]:not(.chips input){appearance:none;-webkit-appearance:none;display:inline-grid;place-items:center start;flex:0 0 auto;width:38px;height:22px;min-width:38px;min-height:22px;margin:0;padding:2px;box-sizing:border-box;border:1px solid var(--line);border-radius:999px;background:var(--soft);cursor:pointer;transition:background .15s,border-color .15s}body input[type=checkbox]:not(.chips input):before{content:"";width:16px;height:16px;border-radius:50%;background:var(--muted);transition:transform .15s,background .15s}body input[type=checkbox]:not(.chips input):checked{background:var(--accent);border-color:var(--accent)}body input[type=checkbox]:not(.chips input):checked:before{transform:translate(16px);background:var(--card)}body input[type=checkbox]:not(.chips input):focus-visible{outline:3px solid color-mix(in srgb,var(--accent) 45%,transparent);outline-offset:2px}body input[type=checkbox]:not(.chips input):disabled{opacity:.5;cursor:not-allowed}body input[type=checkbox][hidden]{display:none}body .chips .chip-option input{position:absolute;width:1px;height:1px;min-width:0;min-height:0;padding:0;margin:-1px;overflow:hidden;clip-path:inset(50%);white-space:nowrap}@media(prefers-reduced-motion:reduce){body input[type=checkbox]:not(.chips input),body input[type=checkbox]:not(.chips input):before{transition:none}}body .study-help-button{display:inline-flex;flex:0 0 auto;align-items:center;justify-content:center;width:22px;height:22px;min-height:0;padding:0;margin:0 0 0 6px;border:1px solid var(--line);border-radius:50%;background:var(--accent-soft);color:var(--accent-strong);font:700 12px/1 system-ui,sans-serif;cursor:help;vertical-align:middle;letter-spacing:0}body .study-help-button{width:30px;height:30px;font-size:16px;cursor:pointer}.study-setting-name:focus-visible,.study-help-button:focus-visible{outline:2px solid var(--accent);outline-offset:3px}.study-settings-note{grid-column:1 / -1;margin:8px 0 12px;color:var(--muted);font:400 13px/1.5 system-ui,sans-serif}.study-setting-name:not(button){display:inline-block;width:fit-content;max-width:100%;align-self:start;cursor:help;text-decoration:underline dotted;text-underline-offset:3px;text-decoration-color:var(--line)}.study-setting-tooltip{pointer-events:none;position:fixed;inset:auto;margin:0;width:max-content;max-width:min(290px,calc(100vw - 16px));box-sizing:border-box;overflow:visible;padding:12px 16px;border:0;border-radius:7px;background:#303030;color:#fff;box-shadow:0 3px 10px #00000047;font:400 14px/1.5 system-ui,sans-serif;text-align:center}.study-setting-tooltip:after{content:"";position:absolute;left:var(--arrow-left);transform:translate(-50%);border:8px solid transparent}.study-setting-tooltip[data-side=above]:after{top:100%;border-top-color:#303030;border-bottom:0}.study-setting-tooltip[data-side=below]:after{bottom:100%;border-bottom-color:#303030;border-top:0}.study-help-dialog{width:min(560px,calc(100vw - 32px));max-height:calc(100dvh - 40px);box-sizing:border-box;padding:28px;border:1px solid var(--line);border-radius:20px;background:var(--card);color:var(--ink);box-shadow:var(--shadow);font:400 15px/1.7 system-ui,sans-serif}.study-help-dialog::backdrop{background:#00000080;-webkit-backdrop-filter:blur(3px);backdrop-filter:blur(3px)}.study-help-dialog h2{font-size:22px;margin:0 0 12px}.study-help-close{display:block;margin:20px 0 0 auto;padding:10px 22px;border:1px solid var(--line);border-radius:10px;background:var(--accent);color:var(--page);cursor:pointer}label:has(>input[type=checkbox]){align-items:center;justify-content:flex-start;align-self:end;min-height:38px;text-align:left}label:has(>input[type=checkbox])>input[type=checkbox]{flex:0 0 auto}label:has(>input[type=checkbox])>.study-setting-name:not(button){align-self:center;text-align:left}