:root{
  --fs:19px;
  --bg:#f7f1e6; --bg2:#fffaf1; --card:#fffdf8; --ink:#2b2219; --ink2:#5d5043; --muted:#8a7a68;
  --line:#e8dccb; --accent:#c2621b; --accent2:#e9a23b; --accentbg:#fbe9d3; --good:#3f8a5a; --goodbg:#e2f1e6;
  --shadow:0 1px 2px rgba(60,40,20,.06),0 6px 18px rgba(60,40,20,.06);
  --serif:"Iowan Old Style","Palatino Linotype",Palatino,"Book Antiqua",Georgia,"Noto Serif",serif;
  --sans:system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
  --deva:"Noto Serif Devanagari","Noto Sans Devanagari","Kohinoor Devanagari","Devanagari Sangam MN","Mangal",serif;
  color-scheme:light;
}
:root[data-theme="dark"]{
  --bg:#14110d; --bg2:#1b1712; --card:#201b15; --ink:#efe6d8; --ink2:#cdbfac; --muted:#9a8b78;
  --line:#352c22; --accent:#f0a04b; --accent2:#f5c26b; --accentbg:#3a2817; --good:#7cc794; --goodbg:#1d3324;
  --shadow:0 1px 2px rgba(0,0,0,.3),0 6px 18px rgba(0,0,0,.25); color-scheme:dark;
}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]){
  --bg:#14110d; --bg2:#1b1712; --card:#201b15; --ink:#efe6d8; --ink2:#cdbfac; --muted:#9a8b78;
  --line:#352c22; --accent:#f0a04b; --accent2:#f5c26b; --accentbg:#3a2817; --good:#7cc794; --goodbg:#1d3324;
  --shadow:0 1px 2px rgba(0,0,0,.3),0 6px 18px rgba(0,0,0,.25); color-scheme:dark;}}
*{box-sizing:border-box}
/* One knob: html font-size follows the Settings text size, and every reading size below is in rem. */
html{font-size:var(--fs);-webkit-text-size-adjust:100%;scroll-padding-top:70px}
body{margin:0;background:var(--bg);color:var(--ink);font:400 1rem/1.6 var(--sans);padding-bottom:calc(72px + env(safe-area-inset-bottom))}
a{color:var(--accent)}
button{font:inherit;color:inherit}
main{max-width:720px;margin:0 auto;padding:12px 16px 40px;outline:none}
.loading{padding:40px;text-align:center;color:var(--muted)}
/* top bar */
.topbar{position:sticky;top:0;z-index:20;display:flex;align-items:center;gap:12px;padding:10px 16px;padding-top:calc(10px + env(safe-area-inset-top));background:color-mix(in srgb,var(--bg) 88%,transparent);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.brand{display:flex;align-items:center;gap:8px;font:600 19px var(--serif);color:var(--ink);text-decoration:none;letter-spacing:.02em}
.flame{width:14px;height:20px;border-radius:50% 50% 50% 50%/60% 60% 40% 40%;background:radial-gradient(circle at 50% 70%,#fff2c2 0 25%,var(--accent2) 45%,var(--accent) 90%);box-shadow:0 0 12px var(--accent2)}
.topprog{flex:1;display:flex;align-items:center;gap:8px;font-size:12px;color:var(--muted);min-width:0}
.topprog .bar{flex:1}
.iconbtn{margin-left:auto;background:none;border:1px solid var(--line);border-radius:50%;width:36px;height:36px;font-size:17px;cursor:pointer;color:var(--ink2)}
/* tab bar */
.tabbar{position:fixed;left:0;right:0;bottom:0;z-index:30;display:flex;justify-content:space-around;background:color-mix(in srgb,var(--bg2) 94%,transparent);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-top:1px solid var(--line);padding:6px 4px calc(6px + env(safe-area-inset-bottom))}
.tabbar a{flex:1;display:flex;flex-direction:column;align-items:center;gap:1px;font-size:11.5px;color:var(--muted);text-decoration:none;padding:4px 0;border-radius:10px}
.tabbar a span{font-size:20px;line-height:1.2}
.tabbar a.on{color:var(--accent);font-weight:600}
/* generic */
h1,h2,h3{font-family:var(--serif);font-weight:600;line-height:1.25;margin:0}
h1{font-size:1.7rem}h2{font-size:1.3rem}h3{font-size:1.08rem}
.card{background:var(--card);border:1px solid var(--line);border-radius:18px;padding:16px 18px;margin:14px 0;box-shadow:var(--shadow)}
.muted{color:var(--muted)}.small{font-size:.92rem}.tiny{font-size:.78rem}
.eyebrow{font-size:.74rem;letter-spacing:.12em;text-transform:uppercase;color:var(--accent);font-weight:600}
.bar{height:8px;border-radius:99px;background:var(--line);overflow:hidden}
.bar i{display:block;height:100%;width:0;border-radius:99px;background:linear-gradient(90deg,var(--accent),var(--accent2));transition:width .4s ease}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:0;border-radius:999px;padding:11px 18px;background:var(--accent);color:#fff;font-weight:600;font-size:.95rem;text-decoration:none;cursor:pointer;min-height:2.4rem}
:root[data-theme="dark"] .btn{color:#1a120a}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]) .btn{color:#1a120a}}
.btn.ghost{background:transparent;color:var(--accent);border:1.5px solid var(--accent)}
.btn.soft{background:var(--accentbg);color:var(--accent)}
.btn.block{width:100%}
.row{display:flex;gap:10px;align-items:center}.row.wrap{flex-wrap:wrap}.spread{justify-content:space-between}
.pill{display:inline-block;font-size:.76rem;padding:3px 9px;border-radius:99px;background:var(--accentbg);color:var(--accent);font-weight:600}
.pill.good{background:var(--goodbg);color:var(--good)}
/* home */
.hero{padding:22px 4px 6px}
.hero h1{font-size:1.9rem}
.hero p{color:var(--ink2);margin:.4em 0 0}
.stats{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin:14px 0}
.stat{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:12px;text-align:center}
.stat b{display:block;font:600 1.45rem var(--serif);color:var(--accent)}
.stat span{font-size:.78rem;color:var(--muted)}
.continue{background:linear-gradient(135deg,var(--accentbg),var(--card));}
.votd{position:relative;overflow:hidden}
.votd blockquote{margin:.4em 0;font:italic 1.12rem/1.55 var(--serif);color:var(--ink)}
.votd .sa{font-family:var(--deva);color:var(--ink2);font-size:.95rem;white-space:pre-line;margin:.6em 0 .2em}
.chlist{list-style:none;padding:0;margin:0}
.chitem{display:flex;gap:14px;align-items:center;padding:14px 4px;border-bottom:1px solid var(--line);text-decoration:none;color:inherit}
.chnum{flex:none;width:44px;height:44px;border-radius:50%;display:grid;place-items:center;font:600 1.05rem var(--serif);background:var(--accentbg);color:var(--accent);position:relative}
.chnum.done{background:var(--good);color:#fff}
.chnum svg{position:absolute;inset:-3px;width:50px;height:50px;transform:rotate(-90deg)}
.chbody{flex:1;min-width:0}
.chbody h3{font-size:1.02rem}
.chbody p{margin:.1em 0 .35em;color:var(--ink2);font-size:.92rem;line-height:1.45}
.chbody .bar{height:5px}
.chmeta{font-size:.8rem;color:var(--muted)}
.sectiontitle{margin:26px 4px 6px}
/* chapter */
.chhead{padding:18px 2px 4px}
.chhead .sanskrit{font-family:var(--deva);color:var(--muted);font-size:.95rem}
.chhead h1{margin:.15em 0 .1em}
.chhead .tagline{color:var(--ink2);font-style:italic;font-family:var(--serif);margin:0}
.chhead .meta{display:flex;gap:8px;flex-wrap:wrap;margin:10px 0 4px}
.hook{font-family:var(--serif);font-size:1.05rem;line-height:1.65}
.hook::first-letter{font-size:2.6em;float:left;line-height:.9;margin:.06em .08em 0 0;color:var(--accent);font-weight:600}
.speakers{font-size:.92rem;color:var(--muted);margin-top:8px}
details.fold{border-top:1px solid var(--line);margin-top:10px;padding-top:6px}
details.fold summary{cursor:pointer;font-weight:600;color:var(--accent);list-style:none;padding:8px 0;min-height:44px;display:flex;align-items:center}
details.fold summary::-webkit-details-marker{display:none}
details.fold summary::after{content:"＋";margin-left:auto}
details.fold[open] summary::after{content:"－"}
.takeaways{margin:6px 0 0;padding-left:1.1em}
.takeaways li{margin:.35em 0}
.keyverse{border:1.5px solid var(--accent2);background:linear-gradient(160deg,var(--accentbg),var(--card) 70%)}
.keyverse blockquote{margin:.5em 0;font:italic 1.1rem/1.55 var(--serif)}
.sec{margin:28px 0 8px}
.sechead{padding:10px 2px 8px;border-bottom:1px solid var(--line)}
.sechead .row{gap:8px}
.sechead h2{font-size:1.12rem}
.sechead .range{font-size:.8rem;color:var(--muted);white-space:nowrap}
.sumbtn{margin-top:8px;background:var(--accentbg);color:var(--accent);border:0;border-radius:999px;padding:8px 14px;font-weight:600;font-size:.9rem;cursor:pointer;min-height:2.2rem}
.secsum{display:none;margin:10px 0 0;padding:12px 14px;border-radius:14px;background:var(--card);border:1px dashed var(--accent2);font-size:1rem;line-height:1.6;color:var(--ink)}
.secsum.open{display:block;animation:fade .25s ease}
@keyframes fade{from{opacity:0;transform:translateY(-4px)}to{opacity:1}}
.verse{position:relative;padding:16px 14px 12px;margin:12px 0;border-radius:16px;background:var(--card);border:1px solid var(--line);transition:border-color .3s,background .3s}
.verse.read{border-color:color-mix(in srgb,var(--good) 45%,var(--line))}
.verse.key{border:1.5px solid var(--accent2)}
.verse.flash{animation:flash 1.6s ease}
@keyframes flash{0%,40%{background:var(--accentbg)}100%{background:var(--card)}}
.vnum{font-size:.78rem;font-weight:700;color:var(--accent);letter-spacing:.06em}
.vtools{position:absolute;top:8px;right:8px;display:flex;gap:4px}
.vtools button{width:40px;height:40px;border-radius:50%;border:0;background:transparent;font-size:1.05rem;cursor:pointer;color:var(--muted)}
.vtools .chk.on{color:var(--good)}
.vtools .bm.on{color:var(--accent2)}
.sa{font-family:var(--deva);font-size:1.08rem;line-height:1.75;white-space:pre-line;color:var(--ink);margin:8px 0 2px}
.tl{font-style:italic;font-size:.9rem;color:var(--muted);white-space:pre-line;line-height:1.5;margin:4px 0 6px}
.en{font-family:var(--serif);font-size:1.06rem;line-height:1.65;margin:8px 0 0}
body.no-sa .sa, body.no-tl .tl{display:none}
.chend .q{margin:16px 0}
.opts{display:grid;gap:8px;margin-top:8px}
.opt{text-align:left;padding:11px 14px;border-radius:12px;border:1.5px solid var(--line);background:var(--bg2);cursor:pointer;min-height:44px;font-size:1rem}
.opt.right{border-color:var(--good);background:var(--goodbg)}
.opt.wrong{border-color:#c0473a;opacity:.8}
.why{font-size:.95rem;color:var(--ink2);margin-top:6px;display:none}
.q.answered .why{display:block}
textarea{width:100%;min-height:90px;border-radius:12px;border:1.5px solid var(--line);background:var(--bg2);color:var(--ink);padding:10px;font:inherit;font-size:1rem}
.chnav{display:flex;gap:10px;margin:22px 0}
.chnav a{flex:1}
.note{font-size:.92rem;background:var(--bg2);border-left:3px solid var(--accent2);padding:8px 12px;border-radius:6px;color:var(--ink2)}
/* guide */
.person{display:flex;gap:12px;align-items:flex-start}
.avatar{flex:none;width:46px;height:46px;border-radius:50%;display:grid;place-items:center;font:600 1.2rem var(--serif);color:#fff}
.person h3{margin-bottom:2px}
.person p{margin:.2em 0;font-size:1rem;color:var(--ink2)}
dl.gloss dt{font-weight:700;font-family:var(--serif);margin-top:10px}
dl.gloss dd{margin:2px 0 0;color:var(--ink2);font-size:1rem}
/* settings */
.setrow{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:12px 0;border-bottom:1px solid var(--line)}
.setrow:last-child{border-bottom:0}
.setrow label{flex:1}
.seg{display:inline-flex;border:1.5px solid var(--line);border-radius:999px;overflow:hidden}
.seg button{border:0;background:transparent;padding:8px 12px;font-size:14px;cursor:pointer;min-height:38px}
.seg button.on{background:var(--accent);color:#fff}
.switch{appearance:none;-webkit-appearance:none;width:48px;height:28px;border-radius:99px;background:var(--line);position:relative;cursor:pointer;transition:.2s;flex:none}
.switch::after{content:"";position:absolute;top:3px;left:3px;width:22px;height:22px;border-radius:50%;background:#fff;transition:.2s;box-shadow:0 1px 3px rgba(0,0,0,.3)}
.switch:checked{background:var(--accent)}.switch:checked::after{left:23px}
.toast{font-size:14px !important;position:fixed;left:50%;bottom:calc(84px + env(safe-area-inset-bottom));transform:translateX(-50%) translateY(20px);background:var(--ink);color:var(--bg);padding:10px 16px;border-radius:999px;font-size:.85rem;opacity:0;pointer-events:none;transition:.25s;z-index:50;max-width:90vw;text-align:center}
.toast.show{opacity:1;transform:translateX(-50%) translateY(0)}
.empty{text-align:center;padding:30px 10px;color:var(--muted)}
.fab{position:fixed;right:16px;bottom:calc(84px + env(safe-area-inset-bottom));z-index:25;border-radius:999px;box-shadow:var(--shadow)}
@media (min-width:760px){main{padding-top:20px}.hero h1{font-size:2.3rem}}
.topprog[hidden]{display:none}

.card p,.card li{font-size:1rem}
.card p.small,.card .small p,.card .small li{font-size:.95rem}
.card p.tiny{font-size:.8rem}