/* Learning Library only; never changes course/review/system styles. */
#tips { background:#f7fbfb; }
#tips .section-head-row { align-items:flex-start; gap:24px; }
#tips .section-sub { max-width:56ch; }
.learning-zones { display:grid; gap:30px; }
.learning-zone { min-width:0; padding:28px; background:#fff; border:1px solid #cde4e9; border-radius:26px; box-shadow:0 12px 32px rgba(22,72,87,.045); }
.learning-zone--government { border-color:#dddccf; background:#fdfcf8; }
.learning-zone__intro { display:grid; grid-template-columns:minmax(0,1fr) 180px; align-items:center; gap:24px; margin-bottom:22px; }
.learning-zone__intro img { width:100%; height:170px; object-fit:contain; object-position:center bottom; }
.learning-zone__number,.learning-card__category { display:block; color:#126980; font-size:.73rem; font-weight:700; letter-spacing:.045em; line-height:1.55; }
.learning-zone--government .learning-zone__number,.learning-zone--government .learning-card__category { color:#53634c; }
.learning-zone__intro h3 { font-family:'IBM Plex Sans Thai',sans-serif; font-size:clamp(1.35rem,2.2vw,1.85rem); line-height:1.4; margin:8px 0; color:#103d50; }
.learning-zone__intro p { color:#4d626b; margin:0 0 10px; max-width:59ch; line-height:1.8; }
.learning-zone__topics { color:#526770; font-size:.85rem; }
.learning-zone__cards,.library-grid { display:grid; grid-template-columns:repeat(3,minmax(0,1fr)); gap:16px; }
.learning-card { min-width:0; display:flex; flex-direction:column; padding:24px; border:1px solid #d9e7e9; border-radius:18px; background:#fff; text-decoration:none; color:#173a4c; transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease; }
.learning-card h3 { color:#173a4c; font-family:'IBM Plex Sans Thai',sans-serif; font-size:1.12rem; font-weight:700; line-height:1.6; margin:10px 0; }
.learning-card p { margin:0 0 20px; font-size:.94rem; color:#4c626c; line-height:1.85; }
.learning-card__read { display:block; color:#116c86; font-weight:700; font-size:.88rem; margin-top:auto; padding-top:10px; }
.learning-card__date { display:block; font-size:.73rem; color:#5b6b73; line-height:1.7; margin-bottom:10px; }
.learning-card:hover { transform:translateY(-3px); border-color:#70b8c9; box-shadow:0 12px 24px rgba(27,88,103,.08); }
.learning-card:focus-visible,.library-filters button:focus-visible,.library-prose summary:focus-visible { outline:3px solid #126980; outline-offset:5px; }
.library-hero { background:#f2f9fa; padding:54px 0 36px; }
.library-hero .eyebrow-mono { color:#126980; }
.library-hero h1 { max-width:26ch; font-size:clamp(1.8rem,4vw,2.65rem); line-height:1.5; margin:16px 0; }
.library-hero .lede { max-width:65ch; font-size:1.05rem; line-height:1.85; }
.library-assessment { padding:20px 24px; margin-bottom:25px; background:#fff9ec; border:1px solid #eadcb7; border-radius:16px; color:#425a65; line-height:1.8; }
.library-assessment a { color:#126980; font-weight:700; }
.library-filters { display:flex; gap:10px; flex-wrap:wrap; margin:18px 0 14px; }
.library-filters[hidden],.learning-card[hidden] { display:none; }
.library-filters button { font:inherit; font-weight:600; color:#254956; background:#fff; border:1px solid #9dbec8; border-radius:30px; min-height:48px; padding:11px 20px; cursor:pointer; }
.library-filters button[aria-pressed="true"] { color:#fff; background:#126980; border-color:#126980; text-decoration:underline; text-underline-offset:5px; text-decoration-thickness:2px; }
.library-filters button span { font-size:.8em; }
.library-count { font-size:.9rem; color:#516670; margin:0 0 24px; }
.library-article-head h1 { font-family:'IBM Plex Sans Thai',sans-serif; max-width:30ch; line-height:1.5; font-size:clamp(1.8rem,4vw,2.6rem); }
.library-article-head .lede { font-size:.88rem; line-height:1.8; }
.library-prose { padding-top:30px; color:#334f5b; }
.library-prose h2 { font-family:'IBM Plex Sans Thai',sans-serif; font-size:1.45rem; color:#173c4c; margin:38px 0 14px; line-height:1.65; }
.library-prose p,.library-prose li { line-height:1.95; }
.library-prose p { margin:0 0 18px; }
.library-prose li { margin-bottom:10px; }
.library-prose ul,.library-prose ol { padding-inline-start:24px; }
.library-prose a,.library-related a { color:#126980; text-decoration:underline; text-underline-offset:3px; }
.library-article-image { width:100%; height:auto; border-radius:18px; margin-bottom:28px; }
.library-table { max-width:100%; margin:22px 0; }
.library-table table { width:100%; border-collapse:collapse; font-size:.91rem; table-layout:fixed; }
.library-table th,.library-table td { padding:12px; border:1px solid #d7e4e7; text-align:left; overflow-wrap:anywhere; line-height:1.8; vertical-align:top; }
.library-table th { background:#edf7f7; color:#173e4d; }
.library-exercise { margin:22px 0 30px; padding:24px; border:1px solid #cee1e6; border-radius:18px; background:#f8fcfc; }
.library-sentence { white-space:pre-line; font-size:1.06rem; font-weight:600; color:#173e4d; }
.library-options { padding-inline-start:24px; }
.library-exercise details { border-top:1px solid #d7e6e8; margin-top:18px; padding-top:12px; }
.library-exercise summary { min-height:48px; cursor:pointer; color:#11667e; font-weight:700; padding:10px 0; line-height:1.7; }
.library-exercise details > div { padding-top:16px; }
.dna-subject,.dna-object { color:#23623d; background:#e6f3e8; }
.dna-verb { color:#155883; background:#e5f1fb; }
.dna-adjective { color:#9e315f; background:#fbe8ef; }
.dna-adverb { color:#735600; background:#fff2bd; }
.dna-modifier { color:#65562e; background:#f5eedc; }
.dna-subject,.dna-object,.dna-verb,.dna-adjective,.dna-adverb,.dna-modifier { padding:1px 4px; border-radius:4px; box-decoration-break:clone; -webkit-box-decoration-break:clone; }
.library-sources { border-top:1px solid #d7e3e6; margin-top:36px; padding-top:8px; font-size:.88rem; }
.library-related { padding:35px 0 55px; background:#f5f9fa; }
.library-related h2 { font-size:1.2rem; color:#173e4d; }
.library-related li { margin:12px 0; line-height:1.8; }
@media(max-width:900px) { .library-grid { grid-template-columns:repeat(2,minmax(0,1fr)); } .learning-zone__cards { gap:12px; } .learning-card { padding:20px; } }
@media(max-width:640px) {
 #tips .section-head-row { display:block; } #tips .head-link { display:inline-block; margin-top:16px; }
 .learning-zones { gap:22px; } .learning-zone { padding:20px 16px; border-radius:20px; }
 .learning-zone__intro { grid-template-columns:minmax(0,1fr) 95px; gap:10px; align-items:start; margin-bottom:20px; }
 .learning-zone__intro img { height:125px; margin-top:15px; }
 .learning-zone__intro h3 { font-size:1.25rem; } .learning-zone__intro p { font-size:.9rem; line-height:1.8; }
 .learning-zone__topics { font-size:.78rem; } .learning-zone__number { font-size:.63rem; }
 .learning-zone__cards,.library-grid { grid-template-columns:minmax(0,1fr); gap:13px; }
 .learning-card { padding:20px; } .learning-card h3 { font-size:1.08rem; } .learning-card p { font-size:.92rem; }
 .library-hero { padding:34px 0 24px; } .library-hero h1 { font-size:1.8rem; } .library-hero .lede { font-size:.98rem; }
 .library-filters { gap:8px; } .library-filters button { padding:10px 14px; font-size:.88rem; }
 .library-assessment { padding:18px; font-size:.94rem; }
 .library-article-head h1 { font-size:1.8rem; line-height:1.55; }
 .library-prose h2 { font-size:1.23rem; margin-top:30px; } .library-prose p,.library-prose li { font-size:1rem; line-height:1.9; }
 .library-exercise { padding:17px; } .library-sentence { font-size:1rem; }
 .library-table th,.library-table td { padding:8px 6px; font-size:.8rem; }
}
@media(prefers-reduced-motion:reduce) { .learning-card { transition:none; } .learning-card:hover { transform:none; } }
/* Primary question edition: scoped to library cards and article answers. */
.library-audience-nav { display:grid; grid-template-columns:repeat(2,minmax(0,1fr)); gap:20px; margin-bottom:40px; }
.library-audience-nav>a { display:flex; align-items:center; gap:18px; border:1px solid #c9e2e7; border-radius:24px; padding:24px; background:#f5fbfc; color:#173e4d; text-decoration:none; }
.library-audience-nav>a:last-child { background:#fdfaf2; border-color:#e5ddc8; }
.library-audience-nav img { width:110px; height:130px; object-fit:contain; flex:none; }
.library-audience-nav strong,.library-audience-nav b,.library-audience-nav span>span { display:block; }
.library-audience-nav strong { font-size:1.25rem; line-height:1.5; margin-bottom:8px; }
.library-audience-nav span>span { color:#4c626c; line-height:1.8; font-size:.94rem; }
.library-audience-nav b { color:#126980; font-size:.92rem; margin-top:14px; }
.library-audience-nav a:focus-visible { outline:3px solid #126980; outline-offset:4px; }
.question-zone { margin-bottom:48px; scroll-margin-top:100px; }
.question-zone>h2,.library-archive>h2 { color:#173e4d; font-size:clamp(1.35rem,2.3vw,1.8rem); line-height:1.55; margin-bottom:22px; }
.question-grid { display:grid; grid-template-columns:repeat(2,minmax(0,1fr)); gap:18px; }
.learning-card.question-card { display:grid; grid-template-columns:110px minmax(0,1fr); gap:16px; align-items:start; background:linear-gradient(135deg,#fff,#f7fcfc); }
.question-card>img { width:110px; height:135px; object-fit:contain; }
.question-card>div { min-width:0; }
.question-card h3 { margin-top:7px; font-size:1.08rem; }
.question-card p { font-size:.9rem; line-height:1.8; margin-bottom:6px; }
#tips .question-card { grid-template-columns:85px minmax(0,1fr); padding:20px 16px; gap:12px; }
#tips .question-card>img { width:85px; height:115px; }
.library-archive { border-top:1px solid #d8e7e9; padding-top:30px; }
.primary-answer { scroll-margin-top:90px; }
.primary-answer+.primary-answer { margin-top:42px; padding-top:28px; border-top:1px solid #cbdfe4; }
.primary-answer__intro { display:grid; grid-template-columns:110px minmax(0,1fr); align-items:start; gap:20px; margin-bottom:18px; }
.primary-answer__intro>img { width:110px; height:130px; object-fit:contain; }
.library-prose .primary-answer__intro h2 { margin:0 0 12px; font-size:1.25rem; }
.primary-answer__direct { font-weight:600; color:#173f50; }
.library-header-answer { margin-top:20px; }
.library-header-answer p { font-size:1.05rem; line-height:1.85; margin:0; }
.library-source-date { font-size:.85rem; color:#526771; border-top:1px solid #dbe7e9; padding-top:16px; margin-top:25px; }
/* Free vocabulary handout and evidence-led lessons only. */
article.prose.library-prose:has(.vocab-resource) { max-width:1160px; }
.vocab-index { display:flex; flex-wrap:wrap; gap:10px; margin:24px 0; }
.vocab-index a { padding:10px 15px; border:1px solid #b8dce4; border-radius:12px; background:#f1fafb; min-height:48px; }
.vocab-category { margin:40px 0; scroll-margin-top:90px; }
.vocab-category>header { display:flex; align-items:center; gap:20px; padding:20px; background:#eff9fa; border:1px solid #c9e4e9; border-radius:20px 20px 0 0; }
.vocab-category>header img { width:85px; height:105px; object-fit:contain; }
.vocab-category>header h2 { margin:6px 0; }
.vocab-category>header p { margin:0; font-size:.95rem; }
.vocab-category>header span { color:#126980; font-weight:700; font-size:.9rem; }
.vocab-table { width:100%; table-layout:fixed; border-collapse:collapse; border:1px solid #c9dfe5; }
.vocab-table caption { padding:12px; text-align:left; color:#47606b; background:#fff; font-size:.9rem; }
.vocab-table th,.vocab-table td { text-align:left; vertical-align:top; padding:17px 15px; border-bottom:1px solid #d6e6e9; line-height:1.7; overflow-wrap:anywhere; }
.vocab-table thead th { background:#166b7c; color:#fff; font-size:.95rem; }
.vocab-table thead th:first-child { width:23%; }.vocab-table thead th:nth-child(2) { width:35%; }
.vocab-table tbody tr { background:#fff; }.vocab-table tbody tr:nth-child(3n+2) { background:#eef9fa; }.vocab-table tbody tr:nth-child(3n) { background:#fff9ed; }
.vocab-table strong,.vocab-table td>span { display:block; }.vocab-table strong { color:#143e50; font-size:1.02rem; }
.vocab-number { display:block; color:#126980; font-size:.8rem; margin-bottom:4px; }
.vocab-pron { display:block; font-size:.94rem; font-weight:400; color:#52636c; margin:6px 0 9px; line-height:1.7; }
.vocab-meaning { color:#244e59; }.vocab-translation { color:#47606b; margin-top:8px; }
.vocab-note,.lesson-format-note { padding:18px 20px; border:1px solid #e4d9b9; border-radius:16px; background:#fff9ed; }
.vocab-download,.lesson-course { border:1px solid #c2dee4; border-radius:20px; padding:24px; margin:30px 0; background:#f0f9fa; }
.vocab-download a,.lesson-course a { display:inline-flex; align-items:center; min-height:48px; padding:12px 18px; background:#156c81; color:#fff; border-radius:12px; text-decoration:none; font-weight:700; }
.lesson-set { margin:36px 0; padding:24px; border:1px solid #cbdfe5; border-radius:22px; background:#f9fcfc; }
.lesson-document { padding:24px; border:1px solid #d1e0e4; border-radius:16px; background:#fffefb; margin:20px 0 28px; box-shadow:0 5px 15px #163d4c05; scroll-margin-top:95px; }
.lesson-document header { border-bottom:1px solid #d8e7e9; padding-bottom:14px; margin-bottom:18px; }
.lesson-document header h3 { margin:0 0 8px; font-size:1.2rem; color:#173e4d; }
.lesson-document header p { margin:0; font-size:.9rem; color:#526772; }
.lesson-document [lang=en] { font-family:Arial,sans-serif; font-size:1rem; line-height:1.85; overflow-wrap:anywhere; }
.lesson-question { padding:20px 0; border-top:1px solid #d7e5e9; }
.lesson-options { min-width:0; padding:0; border:0; margin:20px 0; }
.lesson-options legend { float:none; display:block; width:100%; padding:0; font-size:1.03rem; font-weight:700; line-height:1.7; color:#173e4d; }
.lesson-options label { display:flex; align-items:flex-start; gap:10px; margin:10px 0; padding:10px 12px; background:#fff; border:1px solid #d5e4e9; border-radius:10px; cursor:pointer; min-height:48px; line-height:1.6; }
.lesson-options input { flex:none; margin-top:6px; accent-color:#126980; }
.lesson-toggle { font:inherit; font-weight:700; color:#11637b; background:#eaf7f9; border:1px solid #95c4d0; border-radius:12px; min-height:48px; padding:13px 17px; cursor:pointer; text-align:left; line-height:1.65; }
.lesson-toggle[aria-expanded=true] { background:#126980; color:#fff; }
.lesson-toggle:focus-visible,.lesson-options input:focus-visible,.vocab-index a:focus-visible,.vocab-download a:focus-visible { outline:3px solid #146880; outline-offset:4px; }
.lesson-answer { margin-top:18px; padding:20px; border:1px solid #e8dcbb; border-radius:14px; background:#fff9eb; }
.lesson-answer[hidden] { display:none!important; }.lesson-answer>p:last-child { margin-bottom:0; }
.lesson-evidence.is-evidence { background:#dff2e5; color:#204c35; border-radius:3px; box-decoration-break:clone; -webkit-box-decoration-break:clone; }
.lesson-evidence.is-keyword,.lesson-answer mark { background:#ffedb0; color:#604a08; border-radius:3px; box-decoration-break:clone; -webkit-box-decoration-break:clone; }
@media(max-width:767px) {
 .vocab-table,.vocab-table tbody { display:block; width:100%; }
 .vocab-table { border:0; }.vocab-table caption { display:block; }
 .vocab-table thead { position:absolute; width:1px; height:1px; overflow:hidden; clip-path:inset(50%); }
 .vocab-table tbody tr { display:block; border:1px solid #cbdfe5; border-radius:15px; margin:14px 0; padding:5px 15px; }
 .vocab-table tbody th,.vocab-table tbody td { display:block; width:100%; padding:13px 0; border:0; }
 .vocab-table tbody td { border-top:1px solid #d8e7e9; }.vocab-table tbody th>strong { font-size:1.15rem; }
 .vocab-category>header { padding:16px; gap:12px; border-radius:18px; }.vocab-category>header img { width:65px; height:90px; }
 .lesson-set { padding:17px 13px; border-radius:18px; }.lesson-document { padding:18px 14px; }.lesson-answer { padding:17px 14px; }
 .lesson-set h2 { font-size:1.25rem; }.lesson-document header p { font-size:.9rem; line-height:1.75; }
 .lesson-options legend { font-size:1rem; }.lesson-options label { padding:10px; }
}
@media(max-width:1050px) { #tips .learning-zone__cards { grid-template-columns:1fr; } }
@media(max-width:768px) {
 .library-audience-nav { grid-template-columns:1fr; gap:14px; }
 .question-grid { grid-template-columns:1fr; }
 .library-audience-nav>a { padding:20px; }
 .learning-card.question-card { padding:20px; }
}
@media(max-width:390px) {
 .learning-card.question-card { grid-template-columns:76px minmax(0,1fr); gap:12px; padding:18px 14px; }
 .question-card>img { width:76px; height:105px; }
 .question-card h3 { font-size:1.02rem; }
 .library-audience-nav img { width:75px; height:105px; }
 .library-audience-nav>a { padding:17px 14px; gap:12px; }
 .library-audience-nav strong { font-size:1.15rem; }
 .primary-answer__intro { grid-template-columns:70px minmax(0,1fr); gap:12px; }
 .primary-answer__intro>img { width:70px; height:95px; }
 .library-prose .primary-answer__intro h2 { font-size:1.12rem; }
}