/* BharatFirm Books — product site (books.bharatfirm.com).
   Layout: same brand system as bharatfirm.com — white, full-width bands, perforation grid, maroon + marigold. */
:root{
  color-scheme:light;
  --white:#FFFFFF;--paper:#F6F7FA;--ink:#181A27;--muted:#555A6B;--line:#E3E6ED;
  --brand:#9B1C2E;--brand-dark:#7E1424;--brand-soft:#FBEFF1;--marigold:#E8A21A;--marigold-soft:#FDF4E1;--leaf:#1E7A4B;--leaf-soft:#E7F4EC;
  --c-roc:#1F5FAD;--c-it:#6B3FA0;--c-llp:#0E7C86;--c-tds:#9A6100;
  --f-display:"Anek Latin","Segoe UI",system-ui,sans-serif;--f-body:"Public Sans","Segoe UI",system-ui,sans-serif;--f-mono:"IBM Plex Mono",ui-monospace,Menlo,Consolas,monospace;
  --gutter:clamp(16px,4vw,64px);--max:1440px;--r:14px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:84px}
body{margin:0;background:var(--white);color:var(--ink);font:400 16px/1.6 var(--f-body);-webkit-font-smoothing:antialiased}
a{color:inherit} p{margin:0} img,svg{max-width:100%}
h1,h2,h3,h4{font-family:var(--f-display);margin:0;letter-spacing:-.01em;line-height:1.08;text-wrap:balance}
h1{font-size:clamp(2.5rem,5.6vw,4.6rem);font-weight:760}
h2{font-size:clamp(1.9rem,3.6vw,2.9rem);font-weight:720}
h3{font-size:1.22rem;font-weight:700;line-height:1.2}
.container{width:100%;max-width:var(--max);margin-inline:auto;padding-inline:var(--gutter)}
.band{padding-block:clamp(56px,8vw,104px)}
.band.paper{background:var(--paper)}
.band.ink{background:var(--ink);color:#FFFFFF}
.band.brand{background:var(--brand);color:#FFFFFF}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font:500 .78rem/1 var(--f-mono);letter-spacing:.12em;text-transform:uppercase;color:var(--brand)}
.eyebrow::before{content:"";width:18px;height:3px;background:var(--marigold);border-radius:2px}
.band.ink .eyebrow,.band.brand .eyebrow{color:#FFD58A}
.lede{font-size:clamp(1.05rem,1.4vw,1.2rem);color:var(--muted);max-width:62ch}
.band.ink .lede{color:#D9DBE3}
.band.brand .lede{color:#FBE4E8}
.sec-head{display:flex;flex-direction:column;gap:14px;margin-bottom:clamp(28px,4vw,48px);max-width:820px}
.mono{font-family:var(--f-mono)}
.fine{font-size:.84rem;color:var(--muted);max-width:90ch}
.sr{position:absolute!important;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font:600 .98rem var(--f-body);text-decoration:none;padding:13px 22px;border-radius:999px;background:var(--brand);color:#FFFFFF;border:1.5px solid var(--brand);cursor:pointer;transition:background .15s,transform .15s}
.btn:hover{background:var(--brand-dark);transform:translateY(-1px)}
.btn.ghost{background:#FFFFFF;color:var(--ink);border-color:var(--line)}
.btn.ghost:hover{border-color:var(--ink)}
.btn.light{background:#FFFFFF;color:var(--brand);border-color:#FFFFFF}
.btn svg{width:18px;height:18px}
.cta{display:flex;gap:12px;flex-wrap:wrap}

/* header */
.topbar{background:var(--ink);color:#E6E7EE;font-size:.86rem}
.topbar .container{display:flex;justify-content:space-between;align-items:center;gap:12px;padding-block:9px;flex-wrap:wrap}
.topbar a{color:#FFD58A;text-decoration:none;font-weight:600}
header.site{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.94);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;justify-content:space-between;gap:20px;padding-block:14px}
.navlinks{display:flex;align-items:center;gap:4px}
.navlinks a:not(.btn){text-decoration:none;color:var(--muted);font-weight:500;padding:8px 12px;border-radius:10px}
.navlinks a:not(.btn):hover{color:var(--ink);background:var(--paper)}
.navlinks .btn{padding:10px 18px;margin-left:6px}
.menu{display:none;font:600 .95rem var(--f-body);background:#FFFFFF;border:1px solid var(--line);border-radius:10px;padding:8px 14px}
@media (max-width:1259px){
  .menu{display:block}
  .navlinks{display:none;position:absolute;left:0;right:0;top:100%;background:#FFFFFF;border-bottom:1px solid var(--line);flex-direction:column;align-items:stretch;padding:12px var(--gutter) 20px}
  .navlinks.open{display:flex}
  .navlinks .btn{margin:8px 0 0}
}

/* Cross-site link: the other BharatFirm site, after the page links and before the button (DESIGN.md, Components). */
.navlinks a.xsite{display:inline-flex;align-items:center;gap:8px;position:relative;margin-left:14px;color:var(--ink)}
.navlinks a.xsite::before{content:"";position:absolute;left:-9px;top:50%;width:1px;height:24px;margin-top:-12px;background:var(--line)}
.xsite img{width:24px;height:24px;flex:none;display:block}
.xs-name{font-weight:600}
.xs-pre,.xs-desc{display:none}
@media (max-width:1259px){
  .navlinks a.xsite{display:grid;grid-template-columns:32px minmax(0,1fr) auto;column-gap:12px;row-gap:2px;align-items:center;margin:10px 0 0;padding:14px 10px;border-top:1px solid var(--line);border-radius:0}
  .navlinks a.xsite::before{display:none}
  .navlinks a.xsite::after{content:"\2192";grid-column:3;grid-row:1 / span 2;color:var(--brand);font-weight:600}
  .xsite img{width:32px;height:32px;grid-row:1 / span 2}
  .xs-pre{display:inline}
  .xs-desc{display:block;grid-column:2;font-size:.88rem;font-weight:400;line-height:1.35;color:var(--muted)}
}

/* hero with perforation grid */
.hero{position:relative;overflow:hidden;isolation:isolate;border-bottom:1px solid var(--line)}
.hero::before,.hero::after{content:"";position:absolute;inset:0;z-index:-1;pointer-events:none;-webkit-mask-image:linear-gradient(90deg,transparent 0%,rgba(0,0,0,.25) 30%,#000 70%);mask-image:linear-gradient(90deg,transparent 0%,rgba(0,0,0,.25) 30%,#000 70%)}
.hero::before{background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24'%3E%3Crect x='10.5' y='10.5' width='3' height='3' fill='%23181A27' fill-opacity='.16'/%3E%3C/svg%3E");background-size:24px 24px}
.hero::after{background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='336' height='240'%3E%3Crect x='82.5' y='34.5' width='3' height='3' fill='%23E8A21A'/%3E%3Crect x='250.5' y='130.5' width='3' height='3' fill='%23E8A21A'/%3E%3Crect x='178.5' y='202.5' width='3' height='3' fill='%239B1C2E'/%3E%3Crect x='298.5' y='58.5' width='3' height='3' fill='%239B1C2E' fill-opacity='.7'/%3E%3C/svg%3E");background-size:336px 240px}
@media (max-width:760px){.hero::before,.hero::after{-webkit-mask-image:linear-gradient(180deg,transparent 40%,#000 100%);mask-image:linear-gradient(180deg,transparent 40%,#000 100%)}}
.hero-grid{display:grid;grid-template-columns:1fr 1fr;gap:clamp(32px,5vw,72px);align-items:center;padding-block:clamp(48px,7vw,96px)}
.hero-grid>*{min-width:0}
.intro{display:flex;flex-direction:column;gap:22px}
.hero h1 em{font-style:normal;color:var(--brand)}
.badges{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap;gap:8px}
.badges li{font:500 .84rem var(--f-body);background:#FFFFFF;border:1px solid var(--line);border-radius:999px;padding:6px 12px;color:var(--muted)}
.badges li::before{content:"✓";color:var(--leaf);font-weight:800;margin-right:6px}
@media (max-width:980px){.hero-grid{grid-template-columns:1fr}}

/* hero product mock */
.mock{background:#FFFFFF;border:1px solid var(--line);border-radius:18px;box-shadow:0 1px 2px rgba(24,26,39,.05),0 6px 12px -8px rgba(24,26,39,.2);overflow:hidden}
.mock-bar{display:flex;align-items:center;gap:8px;padding:10px 14px;background:var(--paper);border-bottom:1px solid var(--line);font:500 .76rem var(--f-mono);color:var(--muted)}
.mock-bar i{width:9px;height:9px;border-radius:50%;background:#D9DCE4;display:inline-block}
.mock-bar span{margin-left:8px}
.mock-body{padding:20px;display:flex;flex-direction:column;gap:14px}
.inv-head{display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap}
.inv-head b{font:700 1.1rem var(--f-display)}
.inv-head small{display:block;color:var(--muted);font-size:.82rem}
.chip{display:inline-flex;align-items:center;gap:6px;font:600 .75rem var(--f-mono);letter-spacing:.06em;text-transform:uppercase;padding:4px 9px;border-radius:999px;background:var(--leaf-soft);color:var(--leaf);white-space:nowrap}
.chip.warn{background:var(--marigold-soft);color:#8A5A00}
.chip.brand{background:var(--brand-soft);color:var(--brand)}
.mini{width:100%;border-collapse:collapse;font-size:.88rem}
.mini th,.mini td{padding:8px 6px;border-bottom:1px solid var(--line);text-align:left}
.mini th{font:600 .75rem var(--f-mono);letter-spacing:.08em;text-transform:uppercase;color:var(--muted)}
.mini td.n,.mini th.n{text-align:right;font-family:var(--f-mono);font-variant-numeric:tabular-nums}
.mini tfoot td{font-weight:700;border-bottom:0}
.irn{display:flex;gap:12px;align-items:center;background:var(--paper);border-radius:12px;padding:12px}
.irn .qr{width:56px;height:56px;flex:0 0 56px}
.irn div{font:500 .75rem var(--f-mono);color:var(--muted);overflow-wrap:anywhere;min-width:0}
.irn b{color:var(--ink)}

/* trust strip */
.strip{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border:1px solid var(--line);border-radius:var(--r);background:#FFFFFF;overflow:hidden}
.strip div{padding:22px;display:flex;flex-direction:column;gap:6px;border-right:1px solid var(--line);min-width:0}
.strip div:last-child{border-right:0}
.strip b{font:700 1.05rem var(--f-display)}
.strip span{color:var(--muted);font-size:.92rem}
@media (max-width:980px){.strip{grid-template-columns:1fr 1fr}.strip div:nth-child(2){border-right:0}.strip div:nth-child(-n+2){border-bottom:1px solid var(--line)}}
@media (max-width:560px){.strip{grid-template-columns:1fr}.strip div{border-right:0;border-bottom:1px solid var(--line)}}

/* features */
.feats{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.feat{background:#FFFFFF;border:1px solid var(--line);border-radius:var(--r);padding:24px;display:grid;grid-template-columns:42px minmax(0,1fr);grid-template-rows:auto 1fr auto;gap:12px 14px;align-content:start;min-width:0;transition:transform .2s,box-shadow .2s}
.feat>*{grid-column:1/-1}
.feat>.ic{grid-column:1;grid-row:1;align-self:center}
.feat>h3{grid-column:2;grid-row:1;align-self:center}
.feat:hover{transform:translateY(-3px);box-shadow:0 14px 28px -18px rgba(24,26,39,.35)}
.feat .ic{width:42px;height:42px;border-radius:12px;display:grid;place-items:center;background:var(--brand-soft);color:var(--brand)}
.feat .ic svg{width:22px;height:22px}
.feat p{color:var(--muted);font-size:.94rem}
.feat .when{align-self:end;font:600 .75rem var(--f-mono);letter-spacing:.08em;text-transform:uppercase;color:var(--leaf)}
.feat .when.next{color:#8A5A00}
@media (max-width:1100px){.feats{grid-template-columns:repeat(2,1fr)}}
@media (max-width:560px){.feats{grid-template-columns:1fr}}

/* GST flow */
.flow{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(5,1fr);gap:14px;counter-reset:f}
.flow li{counter-increment:f;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.14);border-radius:var(--r);padding:20px;display:flex;flex-direction:column;gap:8px;position:relative;min-width:0}
.flow li::before{content:counter(f,decimal-leading-zero);font:600 .78rem var(--f-mono);color:#FFD58A}
.flow li b{font:700 1.1rem var(--f-display)}
.flow li span{color:#C9CCD6;font-size:.92rem}
.flow li .t{font:500 .75rem var(--f-mono);color:#FFD58A;margin-top:auto}
@media (max-width:1100px){.flow{grid-template-columns:repeat(2,1fr)}}
@media (max-width:560px){.flow{grid-template-columns:1fr}}

/* two-col blocks */
.split{display:grid;grid-template-columns:1fr 1fr;gap:clamp(24px,4vw,56px);align-items:start}
.split>*{min-width:0}
@media (max-width:900px){.split{grid-template-columns:1fr}}
.checks{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:12px}
.checks li{display:flex;gap:12px;align-items:flex-start}
.checks li::before{content:"✓";flex:0 0 26px;height:26px;border-radius:50%;background:var(--leaf-soft);color:var(--leaf);display:grid;place-items:center;font-weight:800;font-size:.85rem}
.checks b{display:block}
.checks span{color:var(--muted);font-size:.95rem}
.panel{background:#FFFFFF;border:1px solid var(--line);border-radius:var(--r);padding:24px}
.log{font:500 .82rem var(--f-mono);display:flex;flex-direction:column;gap:0}
.log div{display:grid;grid-template-columns:auto 1fr;gap:12px;padding:10px 0;border-bottom:1px dashed var(--line)}
.log div:last-child{border-bottom:0}
.log time{color:var(--muted)}
.log s{color:var(--brand)}

/* pricing */
.plans{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.plan{background:#FFFFFF;border:1px solid var(--line);border-radius:var(--r);padding:26px;display:flex;flex-direction:column;gap:14px;position:relative;min-width:0}
.plan.feat-plan{border:2px solid var(--brand);box-shadow:0 14px 28px -18px rgba(24,26,39,.35)}
.plan .pop{position:absolute;top:-12px;left:24px;background:var(--brand);color:#FFFFFF;font:600 .75rem var(--f-mono);letter-spacing:.06em;text-transform:uppercase;padding:4px 10px;border-radius:999px}
.price{font:760 2.2rem var(--f-display)}
.price small{font:500 .9rem var(--f-body);color:var(--muted)}
.plan ul{margin:0;padding-left:20px;display:flex;flex-direction:column;gap:6px;font-size:.93rem}
.plan .btn{margin-top:auto}
.plan.svc{background:var(--ink);color:#FFFFFF;border-color:var(--ink)}
.plan.svc .price small,.plan.svc p{color:#C9CCD6}
.draft{display:inline-flex;align-self:flex-start;font:600 .75rem var(--f-mono);letter-spacing:.06em;text-transform:uppercase;background:var(--marigold-soft);color:#8A5A00;padding:4px 10px;border-radius:999px}
@media (max-width:1100px){.plans{grid-template-columns:repeat(2,1fr)}}
@media (max-width:560px){.plans{grid-template-columns:1fr}}

/* roadmap */
.road{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.road>div{background:#FFFFFF;border:1px solid var(--line);border-radius:var(--r);padding:22px;min-width:0}
.road h3{margin-bottom:10px;display:flex;align-items:center;gap:10px}
.road h3::before{content:"";width:10px;height:10px;border-radius:50%;background:var(--cc);flex:none}
.road ul{margin:0;padding-left:20px;display:flex;flex-direction:column;gap:6px;font-size:.93rem;color:var(--muted)}
@media (max-width:900px){.road{grid-template-columns:1fr}}

/* FAQ */
.faq{display:flex;flex-direction:column;gap:10px;max-width:900px}
.faq details{background:#FFFFFF;border:1px solid var(--line);border-radius:12px;padding:0 20px}
.faq summary{cursor:pointer;font:700 1.05rem var(--f-display);list-style:none;display:flex;justify-content:space-between;align-items:center;gap:16px;padding:16px 0;min-height:44px}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";font:600 1.3rem var(--f-mono);color:var(--brand)}
.faq details[open] summary::after{content:"−"}
.faq details p{margin-top:-6px;padding-bottom:16px;color:var(--muted)}

/* early access */
.ea{display:grid;grid-template-columns:1fr 1fr;gap:clamp(24px,4vw,56px);align-items:center}
.ea>*{min-width:0}
.ea form{background:#FFFFFF;color:var(--ink);border-radius:18px;padding:26px;display:grid;grid-template-columns:1fr 1fr;gap:14px}
.ea form .full{grid-column:1/-1}
.ea label{display:flex;flex-direction:column;gap:6px;font:600 .84rem var(--f-body)}
input,select,textarea{font:400 1rem var(--f-body);color:var(--ink);background:var(--paper);border:1px solid var(--line);border-radius:10px;padding:12px;width:100%}
input:focus,select:focus,textarea:focus{background:#FFFFFF;border-color:var(--brand);outline:none;box-shadow:0 0 0 3px var(--brand-soft)}
.ea .note{font-size:.84rem;color:var(--muted)}
@media (max-width:900px){.ea{grid-template-columns:1fr}}
@media (max-width:520px){.ea form{grid-template-columns:1fr}}

/* footer */
footer.site{background:var(--ink);color:#C9CCD6;padding-block:56px 32px}
.fgrid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:32px}
.fgrid>*{min-width:0}
footer h2{font:600 .75rem var(--f-mono);letter-spacing:.12em;text-transform:uppercase;color:#FFD58A;margin-bottom:12px}
footer ul{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:8px}
footer a{text-decoration:none;color:#E6E7EE} footer a:hover{color:#FFFFFF;text-decoration:underline}
.fbase{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;border-top:1px solid #2C2F3D;margin-top:36px;padding-top:20px;font-size:.84rem}
@media (max-width:900px){.fgrid{grid-template-columns:1fr 1fr}}
@media (max-width:520px){.fgrid{grid-template-columns:1fr}}
:focus-visible{outline:3px solid var(--marigold);outline-offset:3px;border-radius:6px}
::selection{background:var(--brand-soft);color:var(--ink)} input,textarea{caret-color:var(--brand)}
/* 44px tap targets on touch screens */
@media (pointer:coarse),(max-width:640px){
  .menu,.navlinks a,.topbar a,footer li a,.fbase a,.nav>a:first-child,.fgrid a[aria-label]{min-height:44px;display:inline-flex;align-items:center}
  footer ul{gap:0}
}
@media (prefers-reduced-motion:reduce){*,*::before,*::after{animation:none!important;transition:none!important}}
.mods{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px}
.mods a{background:#FFFFFF;border:1px solid var(--line);border-radius:var(--r);padding:20px;display:flex;flex-direction:column;gap:6px;text-decoration:none;min-width:0;transition:border-color .15s,transform .15s}
.mods a:hover{border-color:var(--brand);transform:translateY(-2px)}
.mods b{font:700 1.08rem var(--f-display)}.mods span{color:var(--muted);font-size:.9rem}
@media (max-width:1100px){.mods{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:560px){.mods{grid-template-columns:1fr}}
.chip.brand{background:var(--brand-soft);color:var(--brand)}