.tb-shell{--tb-line:var(--line,#deddd9);--tb-muted:var(--muted,#73716b);--tb-card:var(--card,#fff);max-width:1240px;margin:auto;padding:44px 0 72px}.tb-shell *{box-sizing:border-box}.tb-hero{display:grid;grid-template-columns:1.1fr 1fr;gap:48px;align-items:center;padding:32px 0 54px}.tb-hero h1{font-size:clamp(42px,5.3vw,76px);line-height:1.06;letter-spacing:-.055em;margin:22px 0}.tb-hero h1 em{font-style:normal;color:#a38049}.tb-hero .lead{max-width:580px;font-size:21px}.tb-access,.tb-meta{font-size:14px;color:var(--tb-muted)}.tb-hero-art{min-height:340px;position:relative;isolation:isolate;background:radial-gradient(ellipse at center,#dccba654,transparent 70%);overflow:hidden}.tb-hero-art>span{position:absolute}.tb-orbit{position:absolute;inset:10% 6%;border:1px solid var(--tb-line);border-radius:50%;transform:rotate(-24deg)}.tb-art-a{font-family:Georgia,serif;font-size:126px;left:12%;top:5%;transform:rotate(-12deg);color:#aa8b55}.tb-art-b{font-family:Georgia,serif;font-size:150px;right:12%;top:20%;transform:rotate(11deg)}.tb-art-c{font-family:Georgia,serif;font-size:100px;left:27%;bottom:0;color:#8b9882}.tb-art-d{font-family:Georgia,serif;font-size:46px;right:7%;top:0;color:var(--tb-muted)}.tb-art-note{right:6%;bottom:10%;font-size:13px;line-height:1.4;color:var(--tb-muted)}.tb-search{margin:0 0 24px}.tb-search>label{display:block;font-size:16px;font-weight:600;margin:0 0 12px}.tb-search>div{display:flex;gap:12px;background:var(--tb-card);border:1px solid var(--tb-line);padding:10px;border-radius:20px}.tb-search input{min-width:0;flex:1;background:transparent;border:0;padding:12px;font:inherit;font-size:18px;color:inherit;outline-offset:0}.tb-search button{background:var(--ink,#222);color:var(--bg,#f6f5f2);border:0;border-radius:12px;min-width:112px;padding:12px 22px;font:inherit;cursor:pointer}.tb-exams,.tb-subjects,.tb-topics,.tb-filter,.tb-tools{display:flex;gap:8px;flex-wrap:wrap}.tb-exams{padding:8px 0 20px}.tb-exams a{font-size:20px;font-weight:600;padding:10px 18px;border-bottom:2px solid transparent;text-decoration:none}.tb-exams a[aria-current]{border-color:#ac8c52}.tb-subjects a,.tb-topics a,.tb-filter a,.tb-tools button{border:1px solid var(--tb-line);border-radius:100px;padding:11px 17px;min-height:44px;text-decoration:none;background:transparent;color:inherit;font:inherit;cursor:pointer}.tb-subjects a{display:flex;align-items:center;gap:8px}.tb-subjects small{font-size:11px;color:var(--tb-muted)}.tb-subjects a.active,.tb-topics a[aria-current],.tb-filter a[aria-current],.tb-tools button[aria-pressed=true]{background:var(--ink,#222);color:var(--bg,#f6f5f2)}.tb-subjects .active small{color:inherit;opacity:.7}.tb-topics{margin-top:14px}.tb-topics a,.tb-filter a{font-size:13px;padding:10px 13px}.tb-catalog{padding-top:48px}.tb-catalog-heading{display:flex;align-items:center;justify-content:space-between;gap:18px;flex-wrap:wrap;margin-bottom:24px}.tb-catalog-heading h2{font-size:28px;margin:0;letter-spacing:-.03em}.tb-catalog-heading h2 span{font-size:16px;color:var(--tb-muted);margin-left:8px}.tb-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}.tb-card{overflow:hidden;background:var(--tb-card);border:1px solid var(--tb-line);border-radius:22px;text-decoration:none;color:inherit;display:flex;flex-direction:column;transition:transform .18s,border-color .18s}.tb-card:hover{transform:translateY(-3px);border-color:#ac8c52}.tb-card-art{height:156px;display:flex;align-items:center;justify-content:space-between;padding:26px;background:#e6e5d8;color:#4e5646;border-bottom:1px solid var(--tb-line)}.tb-card-art span{font:76px Georgia,serif;letter-spacing:-.08em}.tb-card-art i{max-width:100px;font-size:14px;line-height:1.5;font-style:normal}.tb-history{background:#e8ddd0;color:#765d46}.tb-russian{background:#e6dfe4;color:#765b70}.tb-math{background:#dde5e9;color:#4b6374}.tb-card-body{padding:24px;flex:1;display:flex;flex-direction:column;align-items:flex-start}.tb-card h3{font-size:23px;line-height:1.3;letter-spacing:-.025em;margin:14px 0 12px}.tb-card p{color:var(--tb-muted);font-size:15px;line-height:1.6;margin:0 0 24px}.tb-card-link{margin-top:auto;font-size:14px;font-weight:600;width:100%;display:flex;justify-content:space-between}.tb-empty{padding:40px;border:1px solid var(--tb-line);border-radius:20px}.tb-pagination{display:flex;justify-content:center;gap:24px;padding:28px}.tb-pagination a{min-height:44px}.tb-crumbs{display:flex;flex-wrap:wrap;gap:8px;font-size:13px;color:var(--tb-muted);margin:0 0 36px;line-height:1.6}.tb-crumbs a{color:inherit}.tb-crumbs [aria-current]{overflow-wrap:anywhere}.tb-article-head{max-width:1000px}.tb-article-head h1{font-size:clamp(34px,4.3vw,60px);line-height:1.1;letter-spacing:-.04em;margin:20px 0}.tb-article-head .lead{max-width:800px}.tb-byline{display:flex;flex-wrap:wrap;gap:10px 24px;font-size:13px;color:var(--tb-muted);margin:24px 0}.tb-tools{margin:24px 0 42px}.tb-tools button{font-size:14px}.tb-tools [role=status]{font-size:13px;align-self:center}.tb-reading-layout{display:grid;grid-template-columns:230px minmax(0,760px);justify-content:space-between;gap:40px}.tb-sidebar>details{position:sticky;top:150px;padding:20px 0;border-top:1px solid var(--tb-line)}.tb-sidebar summary{font-weight:600;cursor:pointer}.tb-sidebar nav{display:grid;gap:0;margin-top:12px}.tb-sidebar a{font-size:14px;color:var(--tb-muted);padding:10px 0;line-height:1.4;text-decoration:none}.tb-sidebar a:hover{color:#a38049}.tb-prose{min-width:0;font-size:19px;line-height:1.8;overflow-wrap:anywhere}.tb-prose h2{font-size:32px;line-height:1.25;letter-spacing:-.03em;margin:48px 0 20px}.tb-prose h3{font-size:23px;line-height:1.4}.tb-prose p{margin:20px 0}.tb-prose li{margin:12px 0}.tb-prose a{text-underline-offset:4px}.tb-answer{background:#b89a5e18;border:1px solid #b89a5e55;border-radius:20px;padding:26px 30px}.tb-answer>p:last-child{margin:12px 0 0;font-size:21px;line-height:1.65}.tb-example{padding:22px 28px;background:var(--tb-card);border-left:3px solid #b89a5e;border-radius:0 16px 16px 0;margin:30px 0}.tb-example>span{font-size:12px;color:#a38049;text-transform:uppercase;letter-spacing:.1em}.tb-example p{margin:10px 0}.tb-table{overflow-x:auto;margin:26px 0;border:1px solid var(--tb-line);border-radius:14px}.tb-table table{border-collapse:collapse;width:100%;font-size:16px;min-width:400px}.tb-table td,.tb-table th{text-align:left;padding:16px;border-bottom:1px solid var(--tb-line);vertical-align:top}.tb-table th{background:#b89a5e18}.tb-prose figure{margin:30px 0}.tb-prose figure img{width:100%;height:auto;border-radius:16px}.tb-quiz{border:1px solid var(--tb-line);border-radius:22px;background:var(--tb-card);padding:30px;margin:42px 0}.tb-quiz h2{margin-top:12px}.tb-quiz fieldset{border:0;padding:0;margin:30px 0}.tb-quiz legend{font-weight:600;line-height:1.5;margin-bottom:16px}.tb-quiz label{display:flex;gap:12px;align-items:center;border:1px solid var(--tb-line);border-radius:12px;padding:12px;margin:10px 0;font-size:16px;line-height:1.5;cursor:pointer}.tb-quiz input{width:20px;height:20px;accent-color:#a38049;flex-shrink:0}.tb-quiz button{margin:12px 0;background:var(--ink,#222);color:var(--bg,#f6f5f2);border:0;border-radius:12px;padding:13px 22px;font:inherit;font-size:16px;cursor:pointer;min-height:44px}.tb-quiz details{font-size:16px}.tb-faq details{border-bottom:1px solid var(--tb-line);padding:20px 0}.tb-faq summary{cursor:pointer;font-weight:600}.tb-sources{border-top:1px solid var(--tb-line);margin-top:48px;font-size:15px}.tb-sources h2{font-size:24px}.tb-course{border-radius:22px;background:#b89a5e1c;padding:28px;margin-top:40px}.tb-course h2{margin-top:12px}.tb-related{margin-top:70px}.tb-related>h2{font-size:32px}.tb-reading-progress{position:fixed;bottom:0;left:0;right:0;height:4px;z-index:30;pointer-events:none}.tb-reading-progress span{display:block;background:#ae8d4d;height:100%;width:0}.tb-reader [id]{scroll-margin-top:160px}.tb-shell :focus-visible{outline:2px solid #a38049;outline-offset:4px}
@media(max-width:1000px){.tb-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.tb-reading-layout{grid-template-columns:180px minmax(0,1fr);gap:28px}.tb-filter{width:100%}}
@media(max-width:640px){.tb-shell{padding:24px 0 40px}.tb-hero{grid-template-columns:1fr;gap:0;padding:12px 0 26px}.tb-hero-art{display:none}.tb-hero h1{font-size:48px}.tb-hero .lead{font-size:18px}.tb-search>div{gap:0;border-radius:16px;padding:6px}.tb-search input{font-size:16px;padding:12px 8px}.tb-search button{min-width:64px;padding:12px}.tb-search button span{display:none}.tb-exams{gap:0;justify-content:space-between}.tb-exams a{font-size:15px;padding:12px 8px}.tb-subjects{gap:8px}.tb-subjects a{font-size:13px;padding:10px 12px}.tb-subjects small{font-size:10px}.tb-topics a{font-size:12px}.tb-catalog{padding-top:32px}.tb-catalog-heading h2{font-size:25px}.tb-grid{grid-template-columns:1fr;gap:18px}.tb-card-art{height:110px;padding:18px 24px}.tb-card-art span{font-size:60px}.tb-card-body{padding:22px}.tb-card h3{font-size:23px}.tb-reading-layout{display:flex;flex-direction:column;gap:12px}.tb-sidebar>details{position:static;padding:16px;border:1px solid var(--tb-line);border-radius:16px}.tb-article-head h1{font-size:36px}.tb-prose{font-size:17px;line-height:1.8}.tb-prose h2{font-size:27px;margin-top:32px}.tb-answer{padding:20px}.tb-answer>p:last-child{font-size:18px}.tb-quiz{padding:20px}.tb-byline{gap:8px 16px}.tb-tools{margin-bottom:24px}.tb-tools button{padding:10px 13px;font-size:13px}.tb-crumbs{font-size:12px;margin-bottom:24px}.tb-example{padding:18px}.tb-related{margin-top:40px}.tb-prose ul,.tb-prose ol{padding-left:22px}}
@media(prefers-reduced-motion:reduce){.tb-card{transition:none}}
@media print{.site-header,footer,.tb-tools,.tb-sidebar,.tb-related,.tb-course,.tb-reading-progress,.booking-dialog,.tb-quiz button{display:none!important}.tb-shell{padding:0}.tb-reading-layout{display:block}.tb-prose{max-width:none;font-size:12pt}.tb-answer{break-inside:avoid}.tb-quiz details{display:block}.tb-hero-art{display:none}}
.tb-saved{margin-top:32px;padding:24px;border:1px solid var(--tb-line);border-radius:18px}.tb-saved[hidden]{display:none}.tb-saved h2{font-size:22px}.tb-saved>p{font-size:13px;color:var(--tb-muted);margin:8px 0}.tb-saved>div{display:flex;gap:10px;flex-wrap:wrap}.tb-saved a{padding:12px 16px;border:1px solid var(--tb-line);border-radius:12px;font-size:14px}.tb-literature{background:#dedfe9;color:#5b5f7a}

.tb-arrow{width:1em;height:1em;display:inline-block;vertical-align:-.12em;flex-shrink:0}

/* Reading and touch refinements; the approved hero stays unchanged. */
.tb-sidebar summary,.tb-faq summary,.tb-quiz summary{min-height:44px;align-content:center}
.tb-quiz label:has(input:checked){border-color:#a38049;background:#b89a5e18;box-shadow:inset 0 0 0 1px #a38049}
.tb-quiz label:focus-within{outline:2px solid #a38049;outline-offset:3px}
.tb-quiz [data-result]:empty{display:none}
.tb-tools [role=status]:empty{display:none}
.tb-tools [role=status]:not(:empty){flex-basis:100%;line-height:1.5}
.tb-card:focus-visible{border-color:#a38049}
@media(hover:none){.tb-card:hover{transform:none}}
@media(max-width:640px){.tb-topics a{font-size:13px}.tb-empty{padding:24px}.tb-sidebar nav a{min-height:44px}.tb-tools{gap:8px}.tb-pagination{padding:24px 0;align-items:center}.tb-pagination a{display:flex;align-items:center;gap:8px}}

.tb-tools{gap:10px;align-items:center}
.tb-tools button{display:inline-flex;align-items:center;justify-content:center;gap:9px;min-height:46px;padding:11px 16px;border-radius:12px;background:var(--tb-card);font-size:14px;font-weight:500;line-height:1.35;transition:border-color .15s,background .15s}
.tb-tools button:hover{border-color:#a38049}
.tb-tools button[data-bookmark]{border-color:#b89a5e70;background:#b89a5e12}
.tb-tools button[data-bookmark][aria-pressed=true]{background:var(--ink,#222);color:var(--bg,#f6f5f2);border-color:var(--ink,#222)}
.tb-tools [aria-pressed=true] .tb-tool-icon{fill:currentColor}
.tb-tool-icon{width:19px;height:19px;flex:none}
.tb-tools [role=status]:not(:empty){font-size:12px;color:var(--tb-muted);margin-top:2px}
@media(max-width:640px){
 .tb-hero-art{display:block;min-height:0;height:180px;width:100%;max-width:430px;margin:8px auto 0}
 .tb-orbit{inset:12% 10%;transform:rotate(-15deg)}
 .tb-art-a{font-size:79px;left:13%;top:9%}
 .tb-art-b{font-size:92px;right:16%;top:24%}
 .tb-art-c{font-size:67px;left:39%;bottom:1%}
 .tb-art-d{font-size:30px;right:13%;top:3%}
 .tb-art-note{font-size:11px;right:5%;bottom:6%}
 .tb-tools{display:grid;grid-template-columns:1fr 1fr;gap:8px}
 .tb-tools button{min-height:48px;padding:11px 9px;font-size:13px;gap:7px}
 .tb-tools button[data-bookmark]{grid-column:1/-1}
 .tb-tools [role=status]{grid-column:1/-1}
 .tb-tool-icon{width:17px;height:17px}
}
@media(prefers-reduced-motion:reduce){.tb-tools button{transition:none}}
@media(max-width:640px){.tb-hero-art>span:not(.tb-art-note){line-height:1}.tb-art-a{font-size:76px;top:22%}.tb-art-b{top:37%;right:16%}.tb-art-c{font-size:60px;left:42%;bottom:2%}.tb-art-note{bottom:0;right:2%;font-size:10px}.tb-art-d{top:8%}}

/* Exam guides keep long subject names inside narrow screens. */
.tb-article-head h1,.tb-card h3{overflow-wrap:anywhere;hyphens:none}
.tb-exam-guide .tb-hero>div,.tb-subject-page .tb-hero>div{min-width:0}.tb-exam-guide .tb-reading-layout{margin-top:32px}.tb-exam-guide [id]{scroll-margin-top:150px}
@media(max-width:640px){.tb-exam-guide .tb-hero h1,.tb-subject-page .tb-hero h1{font-size:clamp(30px,10vw,42px)}}

/* Native disclosure keeps references available without interrupting reading. */
.tb-sources>summary{cursor:pointer;font-size:18px;font-weight:600;padding:20px 0;min-height:48px}.tb-sources-content{padding-bottom:8px}.tb-sources-content a{text-decoration:underline;text-underline-offset:3px}.tb-sources-content>p:first-child{margin-top:0}
@media print{.tb-sources>.tb-sources-content{display:block!important}.tb-sources::details-content{display:block!important;content-visibility:visible!important}}

.tb-document{padding:24px;border:1px solid var(--line);border-radius:20px;background:var(--card,#fff);margin:24px 0}.tb-document-title{display:flex;align-items:baseline;gap:16px;justify-content:space-between}.tb-document-title strong{font-size:22px;line-height:1.4}.tb-document-title>span{font-size:13px;color:var(--muted)}.tb-document-actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:20px}.tb-prose .tb-document-actions a{text-decoration:none;min-height:44px}.tb-prose .tb-document-actions .solid{color:var(--bg,#fff)}@media(max-width:640px){.tb-document{padding:20px}.tb-document-title strong{font-size:19px}.tb-document-actions a{flex:1;text-align:center;justify-content:center}}

.tb-document-preview{display:block;margin-top:20px;background:#eee;border-radius:10px;overflow:hidden}.tb-prose .tb-document-preview img{display:block;width:100%;height:auto;max-height:360px;object-fit:contain;border-radius:0;margin:0}.tb-codifier-table table{min-width:0}.tb-codifier-table td:first-child,.tb-codifier-table th:first-child{width:54px;white-space:nowrap}.tb-codifier-table td{overflow-wrap:anywhere}.tb-codifier-table em{color:var(--muted);font-style:italic}@media(max-width:640px){.tb-codifier-table td,.tb-codifier-table th{padding:12px 10px}.tb-codifier-table table{font-size:15px}}

.tb-document-title>span{flex-shrink:0;white-space:nowrap}.tb-resource-simple{display:block;max-width:850px;margin-inline:auto}.tb-resource-simple>.tb-sidebar{display:none}
.tb-codifier-table table{table-layout:fixed}.tb-codifier-table th:last-child,.tb-codifier-table td:last-child{white-space:normal;overflow-wrap:break-word}

/* Topic notes keep content as ordinary indexable HTML. */
.tb-notes .tb-prose>.tb-definition{padding:22px 24px;border:1px solid var(--tb-line);border-radius:18px;background:var(--tb-card);line-height:1.65}
.tb-notes .tb-prose>.tb-definition>strong:first-child{color:var(--ink);font-weight:650}
.tb-notes .tb-prose>ul:has(>li>strong:first-child){list-style:none;padding:0;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
.tb-notes .tb-prose>ul:has(>li>strong:first-child)>li{margin:0;padding:20px;border:1px solid var(--tb-line);border-radius:16px;background:var(--tb-card)}
.tb-notes .tb-prose>ul:has(>li>strong:first-child)>li>strong:first-child{display:block;margin-bottom:6px}
.tb-notes .tb-table table{min-width:0;table-layout:fixed}.tb-notes .tb-table th,.tb-notes .tb-table td{white-space:normal;overflow-wrap:break-word;line-height:1.55}
.tb-notes .tb-prose h2{margin-top:48px;line-height:1.25}.tb-notes .tb-prose h3{margin-bottom:12px}.tb-notes .tb-example{border-left:3px solid #a88b50}.tb-notes .tb-answer{border-left:3px solid #a88b50}
@media(max-width:640px){.tb-notes .tb-prose>ul:has(>li>strong:first-child){grid-template-columns:1fr}.tb-notes .tb-prose>.tb-definition{padding:18px}.tb-notes .tb-table td,.tb-notes .tb-table th{padding:12px 10px;font-size:15px}.tb-notes .tb-article-head h1{font-size:34px}.tb-notes .tb-prose h2{margin-top:36px}}

.tb-notes .tb-article-head h1{hyphens:none}@media(max-width:640px){.tb-notes .tb-article-head h1{font-size:30px;line-height:1.2;letter-spacing:-.02em}}

/* Accessible disclosures and compact article footer. */
.tb-disclosure-icon,.tb-external-icon{display:block;flex:none}.tb-disclosure-icon{transition:transform .18s}
.tb-sources{border:1px solid var(--tb-line);border-radius:16px;background:var(--tb-card);margin-top:36px;overflow:hidden}
.tb-sources>summary,.tb-sidebar summary,.tb-quiz summary{display:flex;align-items:center;justify-content:space-between;gap:16px;list-style:none;min-height:48px}
.tb-sources>summary{padding:18px 22px;font-size:17px;line-height:1.4;font-weight:550}.tb-sources>summary::-webkit-details-marker,.tb-sidebar summary::-webkit-details-marker,.tb-quiz summary::-webkit-details-marker{display:none}
.tb-sources[open]>summary .tb-disclosure-icon,.tb-sidebar details[open]>summary .tb-disclosure-icon,.tb-quiz details[open]>summary .tb-disclosure-icon{transform:rotate(180deg)}
.tb-sources>summary:hover{background:color-mix(in srgb,var(--ink) 3%,transparent)}.tb-sources-content{padding:0 22px 18px;font-size:14px;line-height:1.6}.tb-sources-content>p{color:var(--tb-muted);margin:0 0 14px}.tb-sources-content ul{list-style:none;margin:0;padding:0!important}.tb-sources-content li{margin:0;border-top:1px solid var(--tb-line)}.tb-sources-content li>a{display:flex;align-items:flex-start;justify-content:space-between;gap:14px;min-height:48px;padding:14px 0;text-decoration:none;line-height:1.55}.tb-sources-content li>a>span{min-width:0;overflow-wrap:anywhere}.tb-sources-content li>a .tb-external-icon{margin-top:3px;color:var(--tb-muted)}.tb-sources-content a:hover>span{text-decoration:underline;text-underline-offset:3px}.tb-sources-content>a[href^="mailto:"]{display:inline-flex;align-items:center;min-height:44px;margin-top:8px;color:var(--tb-muted);text-decoration:underline}
.tb-sidebar summary{padding:0;font-size:15px}.tb-quiz summary{cursor:pointer;font-weight:500;line-height:1.4}.tb-course h2{font-size:25px}.tb-course .button{display:inline-flex;align-items:center;justify-content:center;gap:16px}.tb-related>h2{margin-bottom:22px}
@media(max-width:640px){
 .tb-sources>summary{padding:16px 18px}.tb-sources-content{padding:0 18px 14px}.tb-sources-content li>a{font-size:14px}
 .tb-sidebar>details{padding:8px 16px}.tb-sidebar nav{margin-top:0;padding:4px 0 8px}.tb-sidebar a{min-height:44px;padding:12px 0}
 .tb-table{max-width:100%}.tb-codifier-table table{min-width:0;table-layout:fixed}.tb-codifier-table td,.tb-codifier-table th{white-space:normal;overflow-wrap:break-word;font-size:15px;line-height:1.6}.tb-codifier-table td:first-child,.tb-codifier-table th:first-child{width:46px;white-space:nowrap}
 .tb-course{padding:20px;margin-top:24px;border-radius:16px}.tb-course h2{font-size:23px;line-height:1.3;margin:0 0 12px}.tb-course p{font-size:16px;line-height:1.6;margin:12px 0 18px}.tb-course .button{width:100%;min-height:48px}
 .tb-related{margin-top:32px}.tb-related>h2{font-size:25px;margin-bottom:16px}.tb-related .tb-grid{gap:10px}.tb-related .tb-card{border-radius:14px}.tb-related .tb-card-art,.tb-related .tb-card p,.tb-related .tb-card-link{display:none}.tb-related .tb-card-body{padding:18px 20px}.tb-related .tb-card h3{font-size:18px;line-height:1.45;margin:6px 0 0;hyphens:none}.tb-related .tb-meta{font-size:12px}.tb-reading-progress{display:none}
}
@media(prefers-reduced-motion:reduce){.tb-disclosure-icon{transition:none}}

.tb-cell-label{display:none}
@media(max-width:640px){
 .tb-table-stacked{border:0;overflow:visible;background:transparent;border-radius:0}
 .tb-table-stacked table,.tb-table-stacked tbody{display:block;width:100%;min-width:0}
 .tb-table-stacked thead{position:absolute;width:1px;height:1px;overflow:hidden;clip-path:inset(50%);white-space:nowrap}
 .tb-table-stacked tbody>tr{display:block;margin:12px 0;padding:16px 18px;border:1px solid var(--tb-line);border-radius:16px;background:var(--tb-card)}
 .tb-table-stacked td,.tb-notes .tb-table-stacked td{display:block;width:auto;padding:8px 0;border:0;font-size:16px;line-height:1.55;overflow-wrap:break-word}
 .tb-table-stacked td:first-child{padding-top:0;font-weight:650;font-size:18px}.tb-table-stacked td:last-child{padding-bottom:0}
 .tb-table-stacked .tb-cell-label{display:block;margin-bottom:4px;font-size:12px;line-height:1.5;font-weight:400;color:var(--tb-muted)}.tb-table-stacked td:first-child .tb-cell-label{display:none}
}
/* Two-column exam tables fit the viewport as well as topic notes. */
.tb-reader .tb-table table{min-width:0;table-layout:fixed}.tb-reader .tb-table th,.tb-reader .tb-table td{white-space:normal;overflow-wrap:break-word}
@media(max-width:640px){.tb-reader .tb-table th,.tb-reader .tb-table td{font-size:15px;line-height:1.6}.tb-reader .tb-table-stacked td{font-size:16px}.tb-reader .tb-table-stacked td:first-child{font-size:18px}.tb-reader .tb-article-head h1{font-size:30px;line-height:1.2;hyphens:none;letter-spacing:-.02em}}

/* Short topic labels; the exact codifier wording stays available on demand. */
.tb-card-note .tb-card-art{display:none}
.tb-card-note .tb-card-body{padding:24px;min-width:0}
.tb-card-note h3{margin:12px 0;font-size:24px;line-height:1.3;hyphens:none}
.tb-card-note p{margin-bottom:22px;font-size:14px;line-height:1.6}
.tb-codifier-title{max-width:850px;margin:0 0 22px;border:1px solid var(--tb-line);border-radius:14px;background:var(--tb-card);overflow:hidden}
.tb-codifier-title>summary{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:48px;padding:13px 18px;list-style:none;cursor:pointer;font-size:14px;line-height:1.5;color:var(--tb-muted)}
.tb-codifier-title>summary::-webkit-details-marker{display:none}
.tb-codifier-title>summary:hover{color:var(--ink)}
.tb-codifier-title>summary:focus-visible{outline-offset:-4px}
.tb-codifier-title[open]>summary .tb-disclosure-icon{transform:rotate(180deg)}
.tb-codifier-title>p{margin:0;padding:0 18px 18px;font-size:15px;line-height:1.65;overflow-wrap:anywhere;hyphens:none}
@media(max-width:640px){
 .tb-card-note .tb-card-body{padding:20px}
 .tb-card-note h3{font-size:22px;line-height:1.3}
 .tb-codifier-title>summary{padding:13px 16px}
 .tb-codifier-title>p{padding:0 16px 16px;font-size:14px}
 .tb-related .tb-card-note h3{font-size:18px;line-height:1.45;margin:6px 0 0}
}
@media print{.tb-codifier-title>p,.tb-codifier-title::details-content{display:block!important;content-visibility:visible!important}}