/* AyurvedaSidhi · BAMS 3rd Prof – plum & antique-gold theme */
:root{
  --bg:#faf6f1; --bg-2:#f3ebf0; --surface:#ffffff; --ink:#24121f; --muted:#6c5a66; --line:#eadde5;
  --brand:#7a2a62; --brand-ink:#ffffff; --gold:#b9852a; --gold-soft:#f7ebd2;
  --yes:#16794f; --yes-bg:#e1f4ea; --no:#b23a48; --no-bg:#fbe6e9;
  --hero-1:#1f0b1c; --hero-2:#5a1d4a;
  --shadow:0 1px 2px rgba(40,10,30,.06),0 12px 32px -16px rgba(40,10,30,.28);
  --r:16px; --r-sm:10px;
  --f-head:"Playfair Display",Georgia,serif; --f-body:"Plus Jakarta Sans",system-ui,-apple-system,"Segoe UI",sans-serif; --f-dev:"Tiro Devanagari Sanskrit","Noto Sans Devanagari",serif;
  color-scheme:light;
}
@media (prefers-color-scheme:dark){
  :root:not([data-theme="light"]){
    --bg:#140a12; --bg-2:#1d1019; --surface:#21121d; --ink:#f5e9f1; --muted:#b7a2b1; --line:#3a2434;
    --brand:#e59ad0; --brand-ink:#1a0915; --gold:#e8bd6a; --gold-soft:#3a2b14;
    --yes:#6fd6a0; --yes-bg:#14301f; --no:#f29aa5; --no-bg:#3a1a20; --hero-1:#0f050d; --hero-2:#3c1232;
    --shadow:0 1px 2px rgba(0,0,0,.4),0 12px 34px -14px rgba(0,0,0,.75); color-scheme:dark;
  }
}
:root[data-theme="dark"]{
  --bg:#140a12; --bg-2:#1d1019; --surface:#21121d; --ink:#f5e9f1; --muted:#b7a2b1; --line:#3a2434;
  --brand:#e59ad0; --brand-ink:#1a0915; --gold:#e8bd6a; --gold-soft:#3a2b14;
  --yes:#6fd6a0; --yes-bg:#14301f; --no:#f29aa5; --no-bg:#3a1a20; --hero-1:#0f050d; --hero-2:#3c1232;
  --shadow:0 1px 2px rgba(0,0,0,.4),0 12px 34px -14px rgba(0,0,0,.75); color-scheme:dark;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-padding-top:84px}
body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.65 var(--f-body);overflow-x:hidden}
a{color:var(--brand);text-decoration:none}
a:hover{text-decoration:underline;text-underline-offset:3px}
img{max-width:100%;height:auto}
h1,h2,h3,h4{font-family:var(--f-head);line-height:1.2;font-weight:650;letter-spacing:-.01em;margin:0 0 .5em}
h1{font-size:clamp(1.9rem,4.2vw,3rem)}
h2{font-size:clamp(1.3rem,2.4vw,1.65rem)}
h3{font-size:1.15rem}
.dev{font-family:var(--f-dev);font-weight:400;letter-spacing:0}
.muted{color:var(--muted)} .small{font-size:.86rem}
.wrap{max-width:1180px;margin:0 auto;padding:0 16px}
.skip{position:absolute;left:-999px}.skip:focus{left:12px;top:12px;z-index:99;background:var(--surface);padding:8px 12px;border-radius:8px}
kbd{font:600 .72rem var(--f-body);border:1px solid var(--line);border-bottom-width:2px;border-radius:6px;padding:1px 6px;color:var(--muted);background:var(--bg)}
.eyebrow{font:600 .78rem/1 var(--f-body);letter-spacing:.12em;text-transform:uppercase;color:var(--gold);margin:0 0 .9rem}
.lead{font-size:1.1rem;color:var(--muted);max-width:760px}
.btn{display:inline-flex;align-items:center;gap:.4em;background:var(--brand);color:var(--brand-ink);border:0;border-radius:999px;padding:.62em 1.15em;font:600 .93rem var(--f-body);cursor:pointer;text-decoration:none!important}
.btn:hover{filter:brightness(1.08)}
.btn.ghost{background:transparent;color:var(--brand);box-shadow:inset 0 0 0 1.5px var(--brand)}
.btn.disabled{background:var(--bg-2);color:var(--muted);cursor:default}
.btn.pdf{margin:0 0 1rem}
.chip{display:inline-flex;align-items:center;border:1px solid var(--line);background:var(--surface);color:var(--ink);border-radius:999px;padding:.32em .8em;font:500 .85rem var(--f-body);cursor:pointer;text-decoration:none!important}
.chip:hover{border-color:var(--brand);color:var(--brand)}
.chip.on{background:var(--brand);color:var(--brand-ink);border-color:var(--brand)}
.chips{display:flex;flex-wrap:wrap;gap:.45rem;margin-top:1rem}
.dot{display:inline-block;width:.62em;height:.62em;border-radius:50%;background:var(--c);margin-right:.5em;vertical-align:.08em}

/* header */
.top{position:sticky;top:0;z-index:40;background:color-mix(in srgb,var(--bg) 86%,transparent);backdrop-filter:saturate(1.4) blur(10px);-webkit-backdrop-filter:saturate(1.4) blur(10px);border-bottom:1px solid var(--line)}
.top-in{display:flex;align-items:center;gap:18px;height:66px}
.brand{display:flex;align-items:center;gap:10px;color:var(--ink);text-decoration:none!important}
.brand b{display:block;font-family:var(--f-head);font-size:1.12rem;line-height:1.1}
.brand small{display:block;font-size:.72rem;letter-spacing:.08em;text-transform:uppercase;color:var(--muted)}
.nav{display:flex;align-items:center;gap:2px;margin-left:8px}
.nav>a,.dd-btn{white-space:nowrap;color:var(--ink);font:500 .92rem var(--f-body);padding:.45em .7em;border-radius:8px;background:none;border:0;cursor:pointer;text-decoration:none!important}
.nav>a:hover,.dd-btn:hover{background:var(--bg-2)}
.nav>a.on{color:var(--brand);background:color-mix(in srgb,var(--brand) 10%,transparent)}
.dd{position:relative}
.dd-menu{position:absolute;top:calc(100% + 6px);left:0;min-width:250px;background:var(--surface);border:1px solid var(--line);border-radius:12px;box-shadow:var(--shadow);padding:6px;display:none}
.dd.open .dd-menu,.dd:focus-within .dd-menu{display:block}
.dd-menu a{display:block;padding:.5em .7em;border-radius:8px;color:var(--ink);text-decoration:none!important}
.dd-menu a:hover{background:var(--bg-2)}
.top-actions{margin-left:auto;display:flex;align-items:center;gap:8px}
.search-trigger{display:flex;align-items:center;gap:8px;border:1px solid var(--line);background:var(--surface);color:var(--muted);border-radius:999px;padding:.42em .6em .42em .8em;font:500 .88rem var(--f-body);cursor:pointer;min-width:210px}
.search-trigger span{flex:1;text-align:left}
.search-trigger:hover{border-color:var(--brand)}
.icon-btn{width:38px;height:38px;border-radius:50%;border:1px solid var(--line);background:var(--surface);color:var(--ink);cursor:pointer;font-size:1rem}
.menu-btn{display:none}
@media (max-width:1080px){
  .search-trigger{min-width:0}.search-trigger span,.search-trigger kbd{display:none}
  .menu-btn{display:block}
  .nav{position:fixed;top:66px;left:0;right:0;flex-direction:column;align-items:stretch;background:var(--surface);border-bottom:1px solid var(--line);padding:10px 16px 16px;margin:0;display:none;box-shadow:var(--shadow)}
  .nav.open{display:flex}
  .dd-menu{position:static;display:block;box-shadow:none;border:0;padding:0 0 0 10px}
  .dd-btn{display:none}
}

/* hero */
.hero{position:relative;overflow:hidden;padding:64px 0 48px;background:radial-gradient(1200px 400px at 85% -10%,var(--gold-soft),transparent 60%),radial-gradient(900px 380px at -10% 110%,color-mix(in srgb,var(--brand) 14%,transparent),transparent 60%)}
.hero-art{position:absolute;right:-120px;top:-80px;width:520px;height:520px;opacity:.13;background:url("../img/mandala.svg") center/contain no-repeat;pointer-events:none}
.hero h1 em{font-style:italic;color:var(--brand)}
.hero-in{position:relative}
.big-search{margin-top:28px;max-width:820px}
.bs-box{display:flex;align-items:center;gap:12px;background:var(--surface);border:1.5px solid var(--line);border-radius:18px;padding:14px 18px;box-shadow:var(--shadow);color:var(--muted)}
.bs-box:focus-within{border-color:var(--brand);box-shadow:0 0 0 4px color-mix(in srgb,var(--brand) 18%,transparent),var(--shadow)}
.bs-box input{flex:1;border:0;outline:0;background:transparent;color:var(--ink);font:500 1.12rem var(--f-body);min-width:0}
.hs-chips{display:flex;flex-wrap:wrap;gap:.4rem;margin-top:.8rem}
.hs-chips .chip{font-size:.8rem}

/* sections */
.section{padding-top:44px;padding-bottom:8px}
.sec-head{display:flex;flex-wrap:wrap;align-items:baseline;justify-content:space-between;gap:8px;margin-bottom:18px}
.sec-head h2{margin:0}
.subj-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:16px}
.subj-card{position:relative;display:flex;flex-direction:column;background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:22px;color:var(--ink);text-decoration:none!important;box-shadow:var(--shadow);transition:transform .18s,border-color .18s;overflow:hidden}
.subj-card::before{content:"";position:absolute;inset:0 0 auto 0;height:4px;background:var(--c)}
.subj-card:hover{transform:translateY(-3px);border-color:var(--c)}
.subj-card h3{margin:.4rem 0 .1rem;font-size:1.3rem}
.subj-card p{margin:.15rem 0}
.subj-card .dev{color:var(--c);font-size:1.05rem}
.sc-icon{width:42px;height:42px;display:grid;place-items:center;border-radius:12px;background:color-mix(in srgb,var(--c) 14%,transparent);color:var(--c);font-size:1.3rem}
.sc-code{position:absolute;top:22px;right:22px;font:600 .72rem var(--f-body);letter-spacing:.06em;color:var(--muted)}
.sc-meta{margin-top:auto;padding-top:14px;font-size:.84rem;color:var(--muted)}
.sc-meta b{color:var(--ink)}
.feature-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:14px}
.feature{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:20px;color:var(--ink);text-decoration:none!important}
.feature span{font-size:1.4rem;color:var(--gold)}
.feature h3{margin:.4rem 0 .3rem}
.feature p{margin:0;color:var(--muted);font-size:.93rem}
.feature:hover{border-color:var(--brand)}
.pp-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;max-width:640px}
.pp{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:16px;text-align:center}
.pp b{display:block;font:650 2rem/1 var(--f-head);color:var(--brand)}
.pp span{display:block;font-size:.88rem;margin-top:4px}
.pp small{color:var(--muted)}
.pp-grid.compact{margin-top:16px}.pp-grid.compact .pp{padding:10px}.pp-grid.compact b{font-size:1.4rem}

/* page head */
.page-head{padding:34px 0 26px;background:linear-gradient(180deg,color-mix(in srgb,var(--c,var(--brand)) 9%,transparent),transparent);border-bottom:1px solid var(--line);margin-bottom:22px}
.page-head h1 .dev{display:block;font-size:.55em;color:var(--c,var(--brand));margin-top:.25em}
.page-head.slim h1{font-size:clamp(1.6rem,3.4vw,2.4rem)}
.page-head h1 .roman{display:block;font-size:.55em;color:var(--muted);font-family:var(--f-body);font-weight:500;margin-top:.35em}
.page-head.slim h1 .dev{display:inline;font-size:1em;color:inherit}
.crumbs{font-size:.84rem;color:var(--muted);margin-bottom:14px;display:flex;flex-wrap:wrap;gap:6px}
.crumbs a{color:var(--muted)}.crumbs .sep{opacity:.5}
.stat-row{display:flex;flex-wrap:wrap;gap:10px;margin:18px 0}
.stat-row div{background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:8px 14px;min-width:84px}
.stat-row b{display:block;font:650 1.3rem var(--f-head)}
.stat-row span{font-size:.78rem;color:var(--muted)}
.stat-row .tot{background:var(--c,var(--brand));border-color:transparent;color:#fff}
.stat-row .tot span{color:rgba(255,255,255,.85)}
.head-actions{display:flex;flex-wrap:wrap;gap:10px}
.meta-chips{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}
.meta-chips span{background:var(--surface);border:1px solid var(--line);border-radius:10px;padding:6px 11px;font-size:.9rem}
.meta-chips b{display:block;font-size:.68rem;letter-spacing:.08em;text-transform:uppercase;color:var(--muted);font-weight:600}

/* tables */
.table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:var(--r);background:var(--surface)}
table{width:100%;border-collapse:collapse;font-size:.94rem}
th,td{padding:10px 12px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}
th{font:600 .76rem var(--f-body);letter-spacing:.06em;text-transform:uppercase;color:var(--muted);background:var(--bg-2)}
tr:last-child td{border-bottom:0}
td.c,th.c{text-align:center}
td.tno,.tno{font-weight:600;color:var(--muted);white-space:nowrap}
.topics td a{font-weight:600}
.topics td a .dev{font-weight:400}
.topics td a .roman{display:block;font-weight:400;color:var(--muted);font-size:.86rem}
.part-row td{background:color-mix(in srgb,var(--gold) 12%,var(--surface));font:600 .82rem var(--f-body);letter-spacing:.05em;text-transform:uppercase;color:var(--ink)}
.paper{margin:0 0 34px}
.paper h2 small{font-family:var(--f-body);font-size:.9rem;font-weight:500}
.yn{font-weight:600;font-size:.86rem}.yn.y{color:var(--yes)}.yn.n{color:var(--no);opacity:.8}

/* question badges */
.qbs{display:inline-flex;flex-wrap:wrap;gap:5px}
.qb{display:inline-flex;align-items:center;gap:3px;font:600 .72rem var(--f-body);letter-spacing:.03em;padding:3px 8px;border-radius:999px;white-space:nowrap}
.qb.yes{background:var(--yes-bg);color:var(--yes)}
.qb.no{background:var(--no-bg);color:var(--no);opacity:.75;text-decoration:line-through;text-decoration-thickness:1px}
.qbs.big .qb{font-size:.95rem;padding:7px 14px}
.qtype{display:inline-block;font:700 .68rem var(--f-body);letter-spacing:.06em;padding:2px 7px;border-radius:6px;margin-right:6px;vertical-align:.1em}
.qtype.laq{background:var(--gold-soft);color:color-mix(in srgb,var(--gold) 70%,var(--ink))}
.qtype.saq{background:var(--yes-bg);color:var(--yes)}

/* topic page */
.topic-layout{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:28px;align-items:start}
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:22px;margin-bottom:18px;box-shadow:var(--shadow)}
.card h2{font-size:1.3rem}
.exam p{margin:.8rem 0 0}
.subtopics{list-style:none;padding:0;margin:0;counter-reset:none}
.subtopics li{display:flex;gap:12px;padding:10px 0;border-bottom:1px dashed var(--line)}
.subtopics li:last-child{border-bottom:0}
.stn{flex:0 0 auto;min-width:2.4em;font-weight:700;color:var(--c,var(--brand));font-size:.9rem;padding-top:.08em}
.stn.dotn{color:var(--gold)}
.notes.empty{background:repeating-linear-gradient(-45deg,var(--surface),var(--surface) 12px,var(--bg) 12px,var(--bg) 24px)}
.prose{font-size:1.02rem}
.prose h2{margin-top:1.6em;font-size:1.35rem}.prose h3{margin-top:1.3em}
.prose blockquote{margin:1em 0;padding:.8em 1.1em;border-left:4px solid var(--gold);background:var(--gold-soft);border-radius:0 10px 10px 0;font-family:var(--f-dev);font-size:1.05rem}
.prose mark{background:var(--gold-soft);color:inherit;padding:0 .2em;border-radius:3px}
.prose code{background:var(--bg-2);padding:.1em .35em;border-radius:5px;font-size:.9em}
.prose pre{background:var(--bg-2);padding:14px;border-radius:10px;overflow:auto}
.prose img{border-radius:10px}
.prose.narrow{max-width:760px;padding-bottom:40px}
.video{position:relative;padding-top:56.25%;border-radius:12px;overflow:hidden;margin:0 0 1rem}
.video iframe{position:absolute;inset:0;width:100%;height:100%;border:0}
.mcq-item{border:1px solid var(--line);border-radius:10px;padding:10px 14px;margin:8px 0;background:var(--bg)}
.mcq-item summary{cursor:pointer;font-weight:500}
.mcq-item .qn{color:var(--brand);font-weight:700}
.opts{margin:.6rem 0;padding-left:1.2rem;list-style:none}
.opts li{padding:2px 0}
.opts li.correct{color:var(--yes);font-weight:600}
.explain{margin:.2rem 0 0;font-size:.93rem;color:var(--muted)}
.qlist{padding-left:0;list-style:none;margin:0}
.qlist li{padding:10px 0;border-bottom:1px dashed var(--line)}
.qlist li:last-child{border-bottom:0}
.prevnext{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin:8px 0 40px}
.pn{display:block;background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:12px 16px;color:var(--ink);text-decoration:none!important}
.pn:hover{border-color:var(--brand)}
.pn small{display:block;color:var(--muted)}
.pn span{font-weight:600}
.pn.next{text-align:right}
.topic-side{position:sticky;top:86px}
.side-box{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:16px;max-height:calc(100vh - 110px);overflow:auto}
.side-box h3{font-size:1rem;margin-bottom:.6rem}
.toc a{display:flex;gap:8px;padding:6px 8px;border-radius:8px;color:var(--ink);font-size:.9rem;text-decoration:none!important}
.toc a:hover{background:var(--bg-2)}
.toc a.on{background:color-mix(in srgb,var(--c,var(--brand)) 12%,transparent);color:var(--brand);font-weight:600}
.toc .tno{min-width:2.2em}
@media (max-width:900px){.topic-layout{grid-template-columns:1fr}.topic-side{position:static}.side-box{max-height:none}}
.plain-list{list-style:none;padding:0}
.plain-list li{padding:10px 0;border-bottom:1px solid var(--line);display:flex;flex-wrap:wrap;gap:8px;align-items:center;justify-content:space-between}
.plain-list.links li{justify-content:flex-start}

/* search results */
.sm-filters{display:flex;flex-wrap:wrap;gap:6px;margin-top:10px}
.sm-filters .sep{width:1px;background:var(--line);margin:0 4px}
.sm-filters .chip{font-size:.78rem;padding:.25em .7em}
.sm-results.inline:not(:empty){margin-top:14px;background:var(--surface);border:1px solid var(--line);border-radius:16px;box-shadow:var(--shadow);overflow:hidden}
.sr{display:block;padding:14px 18px;border-bottom:1px solid var(--line);color:var(--ink);text-decoration:none!important;border-left:4px solid var(--c)}
.sr:last-child{border-bottom:0}
.sr:hover,.sr.active{background:var(--bg-2)}
.sr-top{display:flex;flex-wrap:wrap;align-items:center;gap:6px 10px;font-size:.78rem;color:var(--muted)}
.sr-subj{font-weight:700;color:var(--c);letter-spacing:.02em}
.sr-title{font:600 1.06rem/1.35 var(--f-head);margin:4px 0 2px}
.sr-title .roman{font:500 .85rem var(--f-body);color:var(--muted);margin-left:6px}
.sr-sub{font-size:.88rem;color:var(--muted);margin-top:2px}
.sr-sub b{color:var(--ink)}
.sr mark{background:var(--gold-soft);color:inherit;border-radius:3px;padding:0 .1em}
.sr-foot{display:flex;flex-wrap:wrap;align-items:center;gap:8px;margin-top:8px}
.sr-notes{font-size:.72rem;font-weight:600;color:var(--brand)}
.sr-empty,.sr-more{padding:18px;color:var(--muted);text-align:center}
.search-modal{position:fixed;inset:0;z-index:100}
.sm-backdrop{position:absolute;inset:0;background:rgba(10,16,12,.5);backdrop-filter:blur(3px)}
.sm-panel{position:relative;max-width:760px;margin:7vh auto 0;background:var(--surface);border:1px solid var(--line);border-radius:18px;box-shadow:0 30px 80px -20px rgba(0,0,0,.5);display:flex;flex-direction:column;max-height:84vh;width:calc(100% - 24px)}
.sm-head{display:flex;align-items:center;gap:10px;padding:14px 16px;border-bottom:1px solid var(--line);color:var(--muted)}
.sm-head input{flex:1;border:0;outline:0;background:transparent;color:var(--ink);font:500 1.1rem var(--f-body);min-width:0}
.sm-esc{border:1px solid var(--line);background:var(--bg);color:var(--muted);border-radius:7px;font-size:.75rem;padding:3px 8px;cursor:pointer}
.sm-panel .sm-filters{padding:0 16px 10px;border-bottom:1px solid var(--line)}
.sm-panel .sm-results{overflow:auto}
.sm-hint{padding:22px;color:var(--muted);font-size:.92rem}
.sm-hint b{color:var(--ink)}

/* question bank / quiz */
.filters{display:flex;flex-wrap:wrap;gap:10px;margin-top:16px}
select{font:500 .95rem var(--f-body);padding:.55em .9em;border-radius:10px;border:1px solid var(--line);background:var(--surface);color:var(--ink)}
.seg{display:inline-flex;border:1px solid var(--line);border-radius:10px;overflow:hidden;background:var(--surface)}
.seg button{border:0;background:none;padding:.55em 1em;font:600 .88rem var(--f-body);color:var(--muted);cursor:pointer}
.seg button.on{background:var(--brand);color:var(--brand-ink)}
.elig{margin-top:12px;background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:12px 16px}
.elig summary{cursor:pointer;font-weight:600}
.elig h4{font-family:var(--f-body);font-size:.8rem;text-transform:uppercase;letter-spacing:.06em;color:var(--muted);margin:14px 0 6px}
.taglinks{display:flex;flex-wrap:wrap;gap:6px}
.taglinks a{font-size:.85rem;border:1px solid var(--line);border-radius:999px;padding:2px 10px;background:var(--bg)}
.quiz-wrap{max-width:820px}
.quiz{min-height:280px}
.q-setup label{display:block;font-weight:600;margin:12px 0 6px}
.q-setup select{width:100%}
.q-progress{height:6px;background:var(--bg-2);border-radius:99px;overflow:hidden;margin:6px 0 18px}
.q-progress i{display:block;height:100%;background:var(--brand);transition:width .3s}
.q-meta{display:flex;justify-content:space-between;font-size:.85rem;color:var(--muted)}
.q-text{font:600 1.2rem/1.45 var(--f-head);margin:6px 0 16px}
.q-opts{display:grid;gap:10px}
.q-opt{text-align:left;border:1.5px solid var(--line);background:var(--bg);color:var(--ink);border-radius:12px;padding:12px 14px;font:500 1rem var(--f-body);cursor:pointer}
.q-opt:hover:not(:disabled){border-color:var(--brand)}
.q-opt.right{border-color:var(--yes);background:var(--yes-bg)}
.q-opt.wrong{border-color:var(--no);background:var(--no-bg)}
.q-opt:disabled{cursor:default}
.q-explain{margin-top:14px;padding:12px 14px;border-radius:12px;background:var(--bg-2);font-size:.95rem}
.q-actions{display:flex;justify-content:space-between;align-items:center;gap:10px;margin-top:20px;flex-wrap:wrap}
.q-score{font:650 3rem/1 var(--f-head);color:var(--brand)}
.mcq-list{margin:8px 0;background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:12px 16px}
.mcq-list summary{cursor:pointer;font-weight:600}
.mcq-list li{margin:6px 0}
.jr-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:16px}
.jr{display:flex;flex-direction:column;gap:6px;border-top:4px solid var(--c)}
.jr .btn{align-self:flex-start;margin-top:auto}

/* ads */
.ad{margin:22px auto;text-align:center;min-height:120px}
.ad-label{display:block;font-size:.65rem;letter-spacing:.12em;text-transform:uppercase;color:var(--muted);margin-bottom:4px}
.ad.sticky{position:sticky;top:96px;margin-top:18px}
.ad.in-article{margin:28px 0}

.install-btn{border:0;background:var(--gold);color:#1c1405;border-radius:999px;padding:.45em .9em;font:600 .82rem var(--f-body);cursor:pointer;white-space:nowrap}
.install-btn:hover{filter:brightness(1.06)}
.install-tip{position:fixed;left:12px;right:12px;bottom:12px;z-index:90;max-width:460px;margin:0 auto;background:var(--surface);border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow);padding:14px 44px 14px 16px;display:flex;flex-direction:column;gap:4px;font-size:.92rem}
.install-tip[hidden]{display:none}
.install-tip button{position:absolute;top:8px;right:8px;border:0;background:none;color:var(--muted);font-size:1rem;cursor:pointer}
@media (max-width:520px){.install-btn{font-size:0;padding:.5em .7em}.install-btn::before{content:"＋ Install";font-size:.78rem}}
/* footer */
.foot{margin-top:60px;background:var(--bg-2);border-top:1px solid var(--line);padding:40px 0 20px}
.foot-in{display:grid;grid-template-columns:2fr 1.4fr 1fr 1fr;gap:26px}
.foot h4{font-family:var(--f-body);font-size:.78rem;letter-spacing:.1em;text-transform:uppercase;color:var(--muted)}
.foot-in>div>a:not(.brand){display:block;color:var(--ink);padding:3px 0;font-size:.92rem}
.foot-in .dot{display:none}
.foot-note{margin-top:26px;padding-top:16px;border-top:1px solid var(--line);font-size:.8rem;color:var(--muted)}
@media (max-width:820px){.foot-in{grid-template-columns:1fr 1fr}}
@media (max-width:520px){
  .foot-in{grid-template-columns:1fr}
  .pp-grid{grid-template-columns:repeat(3,1fr);gap:8px}.pp{padding:10px 6px}.pp b{font-size:1.5rem}
  .prevnext{grid-template-columns:1fr}.pn.next{text-align:left}
  th,td{padding:8px}
  .card{padding:16px}
  .hero{padding:40px 0 30px}
  .sm-panel{margin-top:0;max-height:100vh;height:100vh;border-radius:0;width:100%}
}
@media (max-width:640px){.sm-filters{flex-wrap:nowrap;overflow-x:auto;scrollbar-width:none;-webkit-overflow-scrolling:touch}.sm-filters::-webkit-scrollbar{display:none}.sm-filters .chip{flex:0 0 auto}.sm-filters .sep{flex:0 0 1px}}
@media print{.top,.foot,.ad,.topic-side,.search-modal{display:none!important}}

/* ===== 3rd Prof identity ===== */
h1,h2,h3{font-weight:700;letter-spacing:-.01em}
.hero h1 em{font-style:italic}
h1{font-size:clamp(2.1rem,4.6vw,3.4rem)}
h2{font-size:clamp(1.45rem,2.6vw,1.9rem)}
.eyebrow{color:var(--gold);letter-spacing:.16em}
.brand b{font-size:1.3rem}
.hero{background:radial-gradient(900px 420px at 88% -20%,rgba(217,164,65,.34),transparent 60%),radial-gradient(800px 500px at -10% 120%,rgba(196,72,150,.30),transparent 60%),linear-gradient(135deg,var(--hero-1),var(--hero-2));color:#fbeef7;padding:72px 0 56px;border-bottom:0}
.hero::after{content:"";position:absolute;inset:0;background-image:radial-gradient(rgba(255,255,255,.09) 1px,transparent 1px);background-size:22px 22px;mask-image:linear-gradient(180deg,#000,transparent 85%);-webkit-mask-image:linear-gradient(180deg,#000,transparent 85%);pointer-events:none}
.hero-art{opacity:.12;filter:invert(1)}
.hero .eyebrow{color:#f1c97a}
.hero h1{color:#fff}
.hero h1 em{color:#f1c97a}
.hero .lead{color:#e3cbdc}
.hero .lead b{color:#fff}
.hero .bs-box{border-color:transparent;box-shadow:0 20px 50px -20px rgba(0,0,0,.6)}
.hero .chip{background:rgba(255,255,255,.08);border-color:rgba(255,255,255,.18);color:#fbeef7}
.hero .chip:hover{border-color:#f1c97a;color:#f1c97a}
.hero .chip.on{background:#f1c97a;border-color:#f1c97a;color:#2a0f24}
.hero .sm-filters .sep{background:rgba(255,255,255,.2)}
.hero .sm-results.inline{color:var(--ink)}
.hero-in{position:relative;z-index:1}
.subj-card{border-radius:22px;padding:24px 22px 20px 26px}
.subj-card::before{inset:0 auto 0 0;width:5px;height:auto}
.subj-card h3{font-size:1.55rem;line-height:1.1}
.sc-icon{border-radius:50%}
.feature{border-radius:22px;position:relative;overflow:hidden}
.feature::after{content:"";position:absolute;right:-30px;bottom:-30px;width:110px;height:110px;border-radius:50%;background:color-mix(in srgb,var(--gold) 10%,transparent)}
.pp b{font-size:2.4rem;color:var(--gold)}
.page-head{background:linear-gradient(135deg,color-mix(in srgb,var(--c,var(--brand)) 14%,var(--bg)),var(--bg) 70%)}
.btn{border-radius:12px}
.btn.ghost{border-radius:12px}
.card{border-radius:20px}
.subtopics li{border-bottom-style:solid}
.stn{background:color-mix(in srgb,var(--c,var(--brand)) 10%,transparent);border-radius:8px;padding:.1em .45em;text-align:center;height:fit-content}
.objectives{margin:0;padding:0;list-style:none;counter-reset:ob}
.objectives li{position:relative;padding:9px 0 9px 34px;border-bottom:1px solid var(--line);counter-increment:ob}
.objectives li:last-child{border-bottom:0}
.objectives li::before{content:counter(ob);position:absolute;left:0;top:9px;width:24px;height:24px;border-radius:50%;display:grid;place-items:center;font:700 .72rem var(--f-body);background:var(--gold-soft);color:color-mix(in srgb,var(--gold) 75%,var(--ink))}
.tid{font-size:.8rem;background:var(--bg-2);padding:1px 6px;border-radius:6px;user-select:all}
.nav>a.sib{color:var(--gold);font-weight:600}
.lp-list{display:grid;gap:10px}
.lp{display:flex;gap:12px;align-items:center;padding:10px;border:1px solid var(--line);border-radius:14px;color:var(--ink);text-decoration:none!important}
.lp:hover{border-color:var(--brand)}
.lp img{width:84px;height:60px;object-fit:cover;border-radius:10px;flex:0 0 auto}
.lp b{display:block}.lp small{display:block;color:var(--muted);font-size:.85rem;margin-top:2px}
.foot{background:linear-gradient(180deg,var(--bg-2),var(--bg))}
.sr{border-left-width:5px}
.sr-title{font-size:1.2rem}