/* Shared topic-series presentation; content stays in HTML. */
body[data-ds="2031"].topic500-simple{background:var(--ds-surface-soft);}
.topic500-main{padding:34px 0 80px;}
.topic500-title{margin:0 0 22px;color:var(--ds-text);font-size:clamp(1.75rem,4vw,2.4rem);line-height:1.15;}
.topic500-list{display:grid;gap:13px;}
.topic500-link{display:flex;align-items:center;justify-content:space-between;gap:18px;min-height:72px;padding:18px 20px;border-radius:16px;text-decoration:none;color:var(--ds-heading);font-weight:850;font-size:1.05rem;box-shadow:none;transition:transform .16s ease,box-shadow .16s ease;}
.topic500-link:hover{transform:translateY(-1px);box-shadow:none;}
.topic500-link b{font-size:1.25rem;}
.topic500-link:nth-child(1){background:var(--ds-surface-soft);}
.topic500-link:nth-child(2){background:var(--ds-surface-soft);}
.topic500-link:nth-child(3){background:var(--ds-surface-soft);}
.topic500-link:nth-child(4){background:var(--ds-surface-soft);}
.topic500-link:nth-child(5){background:var(--ds-surface-soft);}
@media(max-width:680px){
  .topic500-main{padding-top:24px;}
  .topic500-link{min-height:66px;padding:16px 17px;border-radius:14px;}
}
html[data-theme="dark"] body[data-ds="2031"].topic500-simple{background:var(--ds-surface-soft);}
html[data-theme="dark"] .topic500-title{color:var(--ds-text);}
body[data-ds="2031"].topic500-section{background:var(--ds-surface-soft);}
.topic500-section-main{padding:28px 0 80px;}
.topic500-back{display:inline-flex;margin-bottom:16px;color:var(--ds-text);text-decoration:none;font-weight:750;}
.topic500-section-main h1{margin:0;color:var(--ds-text);font-size:clamp(1.8rem,4vw,2.5rem);}
.topic500-group{margin-top:28px;}
.topic500-group h2{margin:0 0 10px;color:var(--ds-text);font-size:1.04rem;line-height:1.35;}
.topic500-items{display:grid;gap:8px;}
.topic500-row{display:grid;grid-template-columns:50px minmax(0,1fr);gap:12px;align-items:start;padding:13px 14px;border:1px solid var(--ds-border);border-radius:12px;background:var(--ds-surface);box-shadow:none;}
.topic500-number{width:42px;height:36px;display:grid;place-items:center;border-radius:10px;background:var(--ds-surface-soft);color:var(--ds-text);font-weight:900;font-size:.78rem;}
.topic500-name{padding-top:6px;color:var(--ds-text);font-weight:700;line-height:1.55;}
.topic500-row.is-ready{text-decoration:none;transition:transform .16s ease,box-shadow .16s ease,border-color .16s ease;}
.topic500-row.is-ready:hover{transform:translateY(-1px);border-color:var(--ds-border);box-shadow:none;}
.topic500-row.is-ready .topic500-name::after{content:"  पढ़ें →";color:var(--ds-success);font-weight:900;white-space:nowrap;}
@media(max-width:680px){
  .topic500-section-main{padding-top:22px;}
  .topic500-group{margin-top:24px;}
  .topic500-row{grid-template-columns:46px minmax(0,1fr);gap:9px;padding:12px;}
  .topic500-number{width:40px;height:34px;}
  .topic500-name{padding-top:5px;font-size:.95rem;}
}
html[data-theme="dark"] body[data-ds="2031"].topic500-section{background:var(--ds-surface-soft);}
html[data-theme="dark"] .topic500-section-main h1{color:var(--ds-text);}
html[data-theme="dark"] .topic500-back{color:var(--ds-text);}
html[data-theme="dark"] .topic500-group h2{color:var(--ds-text);}
html[data-theme="dark"] .topic500-row{background:var(--ds-surface-soft);border-color:var(--ds-border);}
html[data-theme="dark"] .topic500-number{background:var(--ds-surface-soft);color:var(--ds-text);}
html[data-theme="dark"] .topic500-name{color:var(--ds-text);}
html[data-theme="dark"] .topic500-row.is-ready:hover{border-color:var(--ds-border);}
html[data-theme="dark"] .topic500-row.is-ready .topic500-name::after{color:var(--ds-success);}
body[data-ds="2031"].topic500-section{background:var(--ds-surface-soft);}
.topic500-section-main{padding:28px 0 80px;}
.topic500-back{display:inline-flex;margin-bottom:16px;color:var(--ds-text);text-decoration:none;font-weight:750;}
.topic500-section-main h1{margin:0;color:var(--ds-text);font-size:clamp(1.8rem,4vw,2.5rem);}
.topic500-group{margin-top:28px;}
.topic500-group h2{margin:0 0 10px;color:var(--ds-text);font-size:1.04rem;line-height:1.35;}
.topic500-items{display:grid;gap:8px;}
.topic500-row{display:grid;grid-template-columns:50px minmax(0,1fr);gap:12px;align-items:start;padding:13px 14px;border:1px solid var(--ds-border);border-radius:12px;background:var(--ds-surface);box-shadow:none;}
.topic500-number{width:42px;height:36px;display:grid;place-items:center;border-radius:10px;background:var(--ds-surface-soft);color:var(--ds-text);font-weight:900;font-size:.78rem;}
.topic500-name{padding-top:6px;color:var(--ds-text);font-weight:700;line-height:1.55;}
@media(max-width:680px){
  .topic500-section-main{padding-top:22px;}
  .topic500-group{margin-top:24px;}
  .topic500-row{grid-template-columns:46px minmax(0,1fr);gap:9px;padding:12px;}
  .topic500-number{width:40px;height:34px;}
  .topic500-name{padding-top:5px;font-size:.95rem;}
}
html[data-theme="dark"] body[data-ds="2031"].topic500-section{background:var(--ds-surface-soft);}
html[data-theme="dark"] .topic500-section-main h1{color:var(--ds-text);}
html[data-theme="dark"] .topic500-back{color:var(--ds-text);}
html[data-theme="dark"] .topic500-group h2{color:var(--ds-text);}
html[data-theme="dark"] .topic500-row{background:var(--ds-surface-soft);border-color:var(--ds-border);}
html[data-theme="dark"] .topic500-number{background:var(--ds-surface-soft);color:var(--ds-text);}
html[data-theme="dark"] .topic500-name{color:var(--ds-text);}
body[data-ds="2031"].topic500-section{background:var(--ds-surface-soft);}
.topic500-section-main{padding:28px 0 80px;}
.topic500-back{display:inline-flex;margin-bottom:16px;color:var(--ds-text);text-decoration:none;font-weight:750;}
.topic500-section-main h1{margin:0;color:var(--ds-text);font-size:clamp(1.8rem,4vw,2.5rem);}
.topic500-group{margin-top:28px;}
.topic500-group h2{margin:0 0 10px;color:var(--ds-text);font-size:1.04rem;line-height:1.35;}
.topic500-items{display:grid;gap:8px;}
.topic500-row{display:grid;grid-template-columns:44px minmax(0,1fr);gap:12px;align-items:start;padding:13px 14px;border:1px solid var(--ds-border);border-radius:12px;background:var(--ds-surface);box-shadow:none;}
.topic500-number{width:36px;height:36px;display:grid;place-items:center;border-radius:10px;background:var(--ds-surface-soft);color:var(--ds-text);font-weight:900;font-size:.82rem;}
.topic500-name{padding-top:6px;color:var(--ds-text);font-weight:700;line-height:1.55;}
@media(max-width:680px){
  .topic500-section-main{padding-top:22px;}
  .topic500-group{margin-top:24px;}
  .topic500-row{grid-template-columns:38px minmax(0,1fr);gap:10px;padding:12px;}
  .topic500-number{width:34px;height:34px;}
  .topic500-name{padding-top:5px;font-size:.95rem;}
}
html[data-theme="dark"] body[data-ds="2031"].topic500-section{background:var(--ds-surface-soft);}
html[data-theme="dark"] .topic500-section-main h1{color:var(--ds-text);}
html[data-theme="dark"] .topic500-back{color:var(--ds-text);}
html[data-theme="dark"] .topic500-group h2{color:var(--ds-text);}
html[data-theme="dark"] .topic500-row{background:var(--ds-surface-soft);border-color:var(--ds-border);}
html[data-theme="dark"] .topic500-number{background:var(--ds-surface-soft);color:var(--ds-text);}
html[data-theme="dark"] .topic500-name{color:var(--ds-text);}
body[data-ds="2031"].topic500-section{background:var(--ds-surface-soft);}
.topic500-section-main{padding:28px 0 80px;}
.topic500-back{display:inline-flex;margin-bottom:16px;color:var(--ds-text);text-decoration:none;font-weight:750;}
.topic500-section-main h1{margin:0;color:var(--ds-text);font-size:clamp(1.8rem,4vw,2.5rem);}
.topic500-group{margin-top:28px;}
.topic500-group h2{margin:0 0 10px;color:var(--ds-text);font-size:1.04rem;line-height:1.35;}
.topic500-items{display:grid;gap:8px;}
.topic500-row{display:grid;grid-template-columns:50px minmax(0,1fr);gap:12px;align-items:start;padding:13px 14px;border:1px solid var(--ds-border);border-radius:12px;background:var(--ds-surface);box-shadow:none;}
.topic500-number{width:42px;height:36px;display:grid;place-items:center;border-radius:10px;background:var(--ds-surface-soft);color:var(--ds-text);font-weight:900;font-size:.78rem;}
.topic500-name{padding-top:6px;color:var(--ds-text);font-weight:700;line-height:1.55;}
@media(max-width:680px){
  .topic500-section-main{padding-top:22px;}
  .topic500-group{margin-top:24px;}
  .topic500-row{grid-template-columns:46px minmax(0,1fr);gap:9px;padding:12px;}
  .topic500-number{width:40px;height:34px;}
  .topic500-name{padding-top:5px;font-size:.95rem;}
}
html[data-theme="dark"] body[data-ds="2031"].topic500-section{background:var(--ds-surface-soft);}
html[data-theme="dark"] .topic500-section-main h1{color:var(--ds-text);}
html[data-theme="dark"] .topic500-back{color:var(--ds-text);}
html[data-theme="dark"] .topic500-group h2{color:var(--ds-text);}
html[data-theme="dark"] .topic500-row{background:var(--ds-surface-soft);border-color:var(--ds-border);}
html[data-theme="dark"] .topic500-number{background:var(--ds-surface-soft);color:var(--ds-text);}
html[data-theme="dark"] .topic500-name{color:var(--ds-text);}
body[data-ds="2031"].topic500-section{background:var(--ds-surface-soft);}
.topic500-section-main{padding:28px 0 80px;}
.topic500-back{display:inline-flex;margin-bottom:16px;color:var(--ds-text);text-decoration:none;font-weight:750;}
.topic500-section-main h1{margin:0;color:var(--ds-text);font-size:clamp(1.8rem,4vw,2.5rem);}
.topic500-group{margin-top:28px;}
.topic500-group h2{margin:0 0 10px;color:var(--ds-text);font-size:1.04rem;line-height:1.35;}
.topic500-items{display:grid;gap:8px;}
.topic500-row{display:grid;grid-template-columns:50px minmax(0,1fr);gap:12px;align-items:start;padding:13px 14px;border:1px solid var(--ds-border);border-radius:12px;background:var(--ds-surface);box-shadow:none;}
.topic500-number{width:42px;height:36px;display:grid;place-items:center;border-radius:10px;background:var(--ds-surface-soft);color:var(--ds-text);font-weight:900;font-size:.78rem;}
.topic500-name{padding-top:6px;color:var(--ds-text);font-weight:700;line-height:1.55;}
@media(max-width:680px){
  .topic500-section-main{padding-top:22px;}
  .topic500-group{margin-top:24px;}
  .topic500-row{grid-template-columns:46px minmax(0,1fr);gap:9px;padding:12px;}
  .topic500-number{width:40px;height:34px;}
  .topic500-name{padding-top:5px;font-size:.95rem;}
}
html[data-theme="dark"] body[data-ds="2031"].topic500-section{background:var(--ds-surface-soft);}
html[data-theme="dark"] .topic500-section-main h1{color:var(--ds-text);}
html[data-theme="dark"] .topic500-back{color:var(--ds-text);}
html[data-theme="dark"] .topic500-group h2{color:var(--ds-text);}
html[data-theme="dark"] .topic500-row{background:var(--ds-surface-soft);border-color:var(--ds-border);}
html[data-theme="dark"] .topic500-number{background:var(--ds-surface-soft);color:var(--ds-text);}
html[data-theme="dark"] .topic500-name{color:var(--ds-text);}
body[data-ds="2031"].ho-note{background:var(--ds-surface-soft);color:var(--ds-text);}
.ho-main{padding:26px 0 84px;}
.ho-back{display:inline-flex;margin-bottom:16px;color:var(--ds-text);text-decoration:none;font-weight:750;}
.ho-hero{padding:24px 22px;border-radius:18px;background:var(--ds-surface-soft);color:var(--ds-heading);box-shadow:none;}
.ho-meta{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:10px;}
.ho-meta span{padding:6px 10px;border:1px solid rgba(255,255,255,.24);border-radius:999px;background:rgba(255,255,255,.08);font-size:.74rem;font-weight:850;}
.ho-hero h1{margin:0 0 10px;color:var(--ds-heading);font-size:clamp(1.8rem,4.6vw,3rem);line-height:1.18;}
.ho-hero p{max-width:900px;margin:0;color:var(--ds-text);line-height:1.75;}
.ho-nav{display:flex;gap:8px;overflow:auto;padding:16px 0 4px;scrollbar-width:none;}
.ho-nav::-webkit-scrollbar{display:none;}
.ho-nav a{white-space:nowrap;padding:8px 11px;border:1px solid var(--ds-border);border-radius:999px;background:var(--ds-surface);color:var(--ds-text);text-decoration:none;font-size:.76rem;font-weight:800;}
.ho-card{margin-top:18px;padding:21px 20px;border:1px solid var(--ds-border);border-radius:16px;background:var(--ds-surface);box-shadow:none;}
.ho-card h2{margin:0 0 13px;color:var(--ds-text);font-size:1.32rem;}
.ho-card h3{margin:20px 0 8px;color:var(--ds-text);font-size:1.02rem;}
.ho-card p{margin:9px 0;line-height:1.78;}
.ho-card ul,.ho-card ol{margin:10px 0 0;padding-left:22px;}
.ho-card li{margin:8px 0;line-height:1.68;}
.ho-callout{margin:14px 0;padding:14px 16px;border-left:4px solid var(--ds-border);border-radius:10px;background:var(--ds-surface-soft);line-height:1.7;}
.ho-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;margin-top:12px;}
.ho-mini{padding:14px;border:1px solid var(--ds-border);border-radius:12px;background:var(--ds-surface-soft);}
.ho-mini strong{display:block;margin-bottom:5px;color:var(--ds-text);}
.ho-mini p{margin:0;font-size:.94rem;}
.ho-table-wrap{overflow:auto;margin-top:12px;}
.ho-table{width:100%;min-width:650px;border-collapse:collapse;}
.ho-table th,.ho-table td{padding:11px 12px;border:1px solid var(--ds-border);text-align:left;vertical-align:top;line-height:1.55;}
.ho-table th{background:var(--ds-surface-soft);color:var(--ds-text);}
.ho-flow{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:8px;margin-top:12px;}
.ho-flow div{padding:12px 8px;border-radius:10px;background:var(--ds-surface-soft);text-align:center;font-weight:850;font-size:.84rem;}
.ho-pyq{display:grid;gap:9px;margin-top:12px;}
.ho-pyq div{padding:13px 14px;border:1px solid var(--ds-border);border-radius:11px;background:var(--ds-surface-soft);line-height:1.6;}
.ho-pyq b{color:var(--ds-text);}
.ho-answer-box{padding:15px 16px;border-radius:12px;background:var(--ds-surface-soft);}
.ho-answer-box strong{color:var(--ds-text);}
@media(max-width:760px){
  .ho-main{padding-top:20px;}
  .ho-hero{padding:20px 17px;border-radius:15px;}
  .ho-card{padding:18px 15px;border-radius:14px;}
  .ho-grid{grid-template-columns:1fr;}
  .ho-flow{grid-template-columns:1fr;}
}
html[data-theme="dark"] body[data-ds="2031"].ho-note{background:var(--ds-surface-soft);color:var(--ds-text);}
html[data-theme="dark"] .ho-back{color:var(--ds-text);}
html[data-theme="dark"] .ho-nav a,
html[data-theme="dark"] .ho-card{background:var(--ds-surface-soft);border-color:var(--ds-border);color:var(--ds-text);}
html[data-theme="dark"] .ho-card h2{color:var(--ds-text);}
html[data-theme="dark"] .ho-card h3{color:var(--ds-text);}
html[data-theme="dark"] .ho-mini,
html[data-theme="dark"] .ho-pyq div{background:var(--ds-surface-soft);border-color:var(--ds-border);}
html[data-theme="dark"] .ho-mini strong,
html[data-theme="dark"] .ho-pyq b{color:var(--ds-text);}
html[data-theme="dark"] .ho-callout{background:var(--ds-surface-soft);color:var(--ds-text);}
html[data-theme="dark"] .ho-table th{background:var(--ds-surface-soft);color:var(--ds-text);}
html[data-theme="dark"] .ho-table th,
html[data-theme="dark"] .ho-table td{border-color:var(--ds-border);}
html[data-theme="dark"] .ho-flow div,
html[data-theme="dark"] .ho-answer-box{background:var(--ds-surface-soft);}
html[data-theme="dark"] .ho-answer-box strong{color:var(--ds-text);}
body[data-ds="2031"].ho-note{background:var(--ds-surface-soft);color:var(--ds-text);}
.ho-main{padding:26px 0 84px;}
.ho-back{display:inline-flex;margin-bottom:16px;color:var(--ds-text);text-decoration:none;font-weight:750;}
.ho-hero{padding:24px 22px;border-radius:18px;background:var(--ds-surface-soft);color:var(--ds-heading);box-shadow:none;}
.ho-meta{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:10px;}
.ho-meta span{padding:6px 10px;border:1px solid rgba(255,255,255,.24);border-radius:999px;background:rgba(255,255,255,.08);font-size:.74rem;font-weight:850;}
.ho-hero h1{margin:0 0 10px;color:var(--ds-heading);font-size:clamp(1.8rem,4.6vw,3rem);line-height:1.18;}
.ho-hero p{max-width:900px;margin:0;color:var(--ds-text);line-height:1.75;}
.ho-nav{display:flex;gap:8px;overflow:auto;padding:16px 0 4px;scrollbar-width:none;}
.ho-nav::-webkit-scrollbar{display:none;}
.ho-nav a{white-space:nowrap;padding:8px 11px;border:1px solid var(--ds-border);border-radius:999px;background:var(--ds-surface);color:var(--ds-text);text-decoration:none;font-size:.76rem;font-weight:800;}
.ho-card{margin-top:18px;padding:21px 20px;border:1px solid var(--ds-border);border-radius:16px;background:var(--ds-surface);box-shadow:none;}
.ho-card h2{margin:0 0 13px;color:var(--ds-text);font-size:1.32rem;}
.ho-card h3{margin:20px 0 8px;color:var(--ds-text);font-size:1.02rem;}
.ho-card p{margin:9px 0;line-height:1.78;}
.ho-card ul,.ho-card ol{margin:10px 0 0;padding-left:22px;}
.ho-card li{margin:8px 0;line-height:1.68;}
.ho-callout{margin:14px 0;padding:14px 16px;border-left:4px solid var(--ds-border);border-radius:10px;background:var(--ds-surface-soft);line-height:1.7;}
.ho-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;margin-top:12px;}
.ho-mini{padding:14px;border:1px solid var(--ds-border);border-radius:12px;background:var(--ds-surface-soft);}
.ho-mini strong{display:block;margin-bottom:5px;color:var(--ds-text);}
.ho-mini p{margin:0;font-size:.94rem;}
.ho-table-wrap{overflow:auto;margin-top:12px;}
.ho-table{width:100%;min-width:650px;border-collapse:collapse;}
.ho-table th,.ho-table td{padding:11px 12px;border:1px solid var(--ds-border);text-align:left;vertical-align:top;line-height:1.55;}
.ho-table th{background:var(--ds-surface-soft);color:var(--ds-text);}
.ho-flow{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:8px;margin-top:12px;}
.ho-flow div{padding:12px 8px;border-radius:10px;background:var(--ds-surface-soft);text-align:center;font-weight:850;font-size:.84rem;}
.ho-pyq{display:grid;gap:9px;margin-top:12px;}
.ho-pyq div{padding:13px 14px;border:1px solid var(--ds-border);border-radius:11px;background:var(--ds-surface-soft);line-height:1.6;}
.ho-pyq b{color:var(--ds-text);}
.ho-answer-box{padding:15px 16px;border-radius:12px;background:var(--ds-surface-soft);}
.ho-answer-box strong{color:var(--ds-text);}
@media(max-width:760px){.ho-main{padding-top:20px;}.ho-hero{padding:20px 17px;border-radius:15px;}.ho-card{padding:18px 15px;border-radius:14px;}.ho-grid{grid-template-columns:1fr;}.ho-flow{grid-template-columns:1fr;}}
html[data-theme="dark"] body[data-ds="2031"].ho-note{background:var(--ds-surface-soft);color:var(--ds-text);}
html[data-theme="dark"] .ho-back{color:var(--ds-text);}
html[data-theme="dark"] .ho-nav a,html[data-theme="dark"] .ho-card{background:var(--ds-surface-soft);border-color:var(--ds-border);color:var(--ds-text);}
html[data-theme="dark"] .ho-card h2{color:var(--ds-text);}
html[data-theme="dark"] .ho-card h3{color:var(--ds-text);}
html[data-theme="dark"] .ho-mini,html[data-theme="dark"] .ho-pyq div{background:var(--ds-surface-soft);border-color:var(--ds-border);}
html[data-theme="dark"] .ho-mini strong,html[data-theme="dark"] .ho-pyq b{color:var(--ds-text);}
html[data-theme="dark"] .ho-callout{background:var(--ds-surface-soft);color:var(--ds-text);}
html[data-theme="dark"] .ho-table th{background:var(--ds-surface-soft);color:var(--ds-text);}
html[data-theme="dark"] .ho-table th,html[data-theme="dark"] .ho-table td{border-color:var(--ds-border);}
html[data-theme="dark"] .ho-flow div,html[data-theme="dark"] .ho-answer-box{background:var(--ds-surface-soft);}
html[data-theme="dark"] .ho-answer-box strong{color:var(--ds-text);}