/* Sentence-level reading support. Vietnamese text inherits the system UI font. */
.reading-detail-layout>section,.reading-glossary{min-width:0}
.reading-tools{flex-wrap:wrap;gap:9px}
.reading-tools .toggle{font-size:12px;color:#526a58;margin-right:5px;line-height:1.6}
.reading-body{line-height:2.7}
.reading-body ruby,.sentence-title ruby{ruby-align:center;ruby-position:over}
.reading-body rt,.sentence-title rt{font-size:.51em;font-weight:400;letter-spacing:0;color:#54715b;line-height:1.2}
.reading-sentence{font:inherit;color:inherit;display:inline;max-width:100%;padding:2px 0;line-height:inherit;white-space:normal;text-align:left;border-radius:4px;box-decoration-break:clone;-webkit-box-decoration-break:clone}
.reading-sentence:hover,.reading-sentence:focus-visible{background:#e8efdf;text-decoration:underline;text-decoration-color:#9db18c;text-underline-offset:6px}
.reading-study-nav{display:flex;flex-wrap:wrap;align-items:center;gap:12px 20px;margin-top:17px;font-size:12px}
.reading-study-nav .text-button{font-size:12px;color:#45644d}
.reading-hint{font-size:12px;line-height:1.8;color:#63735c;padding:0 0 19px}
.reading-analysis{margin-top:32px;scroll-margin-top:24px}
.analysis-heading{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:18px}
.analysis-heading .eyebrow{color:#809170;font-size:9px;letter-spacing:1.3px}
.analysis-heading h2{font-size:21px;margin:4px 0}
.analysis-heading p{font-size:12px;color:#697563}
.analysis-controls{display:flex;flex-wrap:wrap;gap:12px;flex-shrink:0}
.analysis-controls .text-button{font-size:12px;text-decoration:underline;text-underline-offset:4px}
.analysis-list{display:grid;gap:12px}
.analysis-pronunciation{font-size:12px;line-height:1.9;color:#617457;background:#f0f4e9;border-radius:8px;padding:12px 16px;margin-bottom:18px}
.sentence-analysis{border:1px solid #dfe6d8;background:#fff;border-radius:11px;overflow:hidden;scroll-margin-top:20px}
.sentence-analysis[open]{border-color:#becfb2;box-shadow:0 3px 14px #43533a05}
.sentence-analysis summary{display:flex;align-items:center;gap:13px;padding:19px 20px;cursor:pointer;list-style:none}
.sentence-analysis summary::-webkit-details-marker{display:none}
.sentence-number{font-size:11px;min-width:29px;height:29px;display:grid;place-items:center;border-radius:8px;background:#eff3e9;color:#627756;font-weight:650;align-self:flex-start;margin-top:3px}
.sentence-title{font-size:17px;line-height:2.7;overflow-wrap:anywhere;flex:1;min-width:0}
.sentence-chevron{color:#809575;font-size:18px;flex-shrink:0}
.sentence-analysis[open] .sentence-chevron{font-size:0}
.sentence-analysis[open] .sentence-chevron:after{content:'−';font-size:20px}
.sentence-content{padding:0 22px 22px;font-size:14px;line-height:1.9}
.sentence-meaning{padding:18px 20px;background:#f0f5eb;border-radius:8px;margin-bottom:22px}
.analysis-label{font-size:11px;font-weight:650;color:#587249;display:block;margin-bottom:6px}
.sentence-meaning p{color:#314630;white-space:pre-line}
.sentence-audio{display:flex;align-items:center;gap:6px;color:#68825b;font-size:11px;margin-top:9px}
.sentence-audio .icon-button{width:30px;height:30px}
.sentence-content h3{font-size:13px;font-weight:650;margin:22px 0 10px;color:#42523c}
.phrase-list,.particle-list{margin:0}
.phrase-list>div{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:12px;padding:12px 0;border-bottom:1px solid #edf0e8}
.phrase-list dt .jp{display:block;font-size:16px;line-height:1.9;overflow-wrap:anywhere}
.phrase-list dt .phrase-reading{font-size:12px;color:#617a54;margin-top:4px}
.phrase-list dd,.particle-list dd{margin:0;color:#56614e;font-size:13px;overflow-wrap:anywhere}
.particle-list>div{display:flex;align-items:flex-start;gap:13px;padding:9px 0}
.particle-list dt{min-width:32px;text-align:center;color:#9a5139;background:#fbf0e7;border-radius:6px;padding:1px 7px;font-size:16px;flex-shrink:0;max-width:45%}
.particle-list dd{flex:1}
.sentence-grammar{border-left:3px solid #afbf91;background:#fafbf7;padding:14px 17px;margin-top:22px}
.sentence-grammar p{color:#4e6043;font-size:13px}
.no-particles{font-size:12px;color:#7a8471;margin-top:18px}
.back-to-reading{margin-top:20px;font-size:11px}
.reading-vocabulary{scroll-margin-top:20px;padding:23px}
.vocabulary-heading{display:flex;align-items:center;justify-content:space-between;gap:10px}
.vocabulary-heading h2{font-size:16px}
.vocabulary-heading .tag{white-space:nowrap;font-size:10px}
.vocabulary-caption{font-size:11px;color:#73816a;margin:7px 0 18px}
.reading-word-search{display:block;font-size:11px;font-weight:600;color:#627456}
.reading-word-search input{display:block;width:100%;min-width:0;border:1px solid #dce4d4;border-radius:7px;background:#fafcf7;padding:11px 10px;margin-top:6px;font-size:12px;font-weight:400}
.vocabulary-count{color:#77816d;font-size:10px;margin-top:10px}
.reading-word-list{max-height:600px;overflow:auto;overscroll-behavior:contain;padding-right:8px;scrollbar-width:thin}
.reading-vocabulary .glossary-entry p{color:#546347;font-size:12px}
.reading-vocabulary .glossary-kana{color:#617d50;font-size:12px;overflow-wrap:anywhere}
.reading-vocabulary .glossary-entry strong{font-size:18px;overflow-wrap:anywhere}
.reading-vocabulary .glossary-entry[hidden],.vocabulary-empty[hidden]{display:none}
.vocabulary-empty{font-size:12px;color:#6f7f62;margin-top:15px}
.reading-paper-bottom{color:#727f66;font-size:11px}
@media(max-width:1190px){.reading-glossary{display:block}.reading-glossary .guide-card{display:none}.reading-word-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0 24px;max-height:520px}.reading-vocabulary{margin-top:6px}}
@media(max-width:760px){.reading-tools{justify-content:flex-start;gap:9px}.reading-tools .toggle{margin-right:6px;font-size:11px}.reading-tools>.text-size:first-of-type{margin-left:auto}.reading-body{line-height:2.7;padding-top:27px}.reading-study-nav{gap:12px;margin-top:12px}.analysis-heading{display:block}.analysis-controls{margin-top:15px}.sentence-analysis summary{padding:18px 14px;gap:10px}.sentence-title{font-size:16px}.sentence-content{padding:0 15px 20px}.sentence-meaning{padding:15px}.sentence-content h3{margin-top:19px}.sentence-grammar{padding:12px 14px}.analysis-heading h2{font-size:20px}}
@media(max-width:480px){.reading-tools .toggle{width:100%;margin:0}.reading-tools>.text-size:first-of-type{margin-left:0}.reading-word-list{grid-template-columns:1fr;max-height:460px;padding-right:6px}.phrase-list>div{grid-template-columns:1fr;gap:5px}.sentence-title{font-size:15px}.sentence-number{min-width:25px;height:25px;font-size:10px}.sentence-analysis summary{gap:8px}.reading-vocabulary{padding:18px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}