/* ============================================================
   THE DELHI BOOK STORE — storefront design system
   Layout, type scale and colour lifted from the Bharat Connect
   reference: Inter, warm near-black ink, tight negative tracking,
   10/20/40px radii, off-white section tints, pastel gradient washes.
   ============================================================ */

/* ---------- fonts (self-hosted, never Google Fonts) ---------- */
@font-face{font-family:Inter;src:url(../fonts/inter-400.woff2)format("woff2");font-weight:400;font-style:normal;font-display:swap}
@font-face{font-family:Inter;src:url(../fonts/inter-500.woff2)format("woff2");font-weight:500;font-style:normal;font-display:swap}
@font-face{font-family:Inter;src:url(../fonts/inter-600.woff2)format("woff2");font-weight:600;font-style:normal;font-display:swap}
@font-face{font-family:Inter;src:url(../fonts/inter-700.woff2)format("woff2");font-weight:700;font-style:normal;font-display:swap}

/* ---------- tokens ---------- */
:root{
  --ink:#1E1E1C;
  --ink-2:#5F5F5F;
  --ink-3:#828282;
  --line:#DADADA;
  --line-2:#F1F1F1;
  --paper:#FFFFFF;
  --paper-2:#F9F9F9;

  --teal:#40D0CB;
  --orange:#FF894F;
  --coral:#F87260;
  --indigo:#6981D3;
  --blue:#0094FF;

  --r-sm:6px;
  --r:10px;
  --r-lg:20px;
  --r-pill:40px;

  --gutter:24px;
  --maxw:1220px;
  --header-h:72px;
}

/* ---------- reset ---------- */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
/* overflow-x:clip (not hidden) on the root: it stops sideways panning without
   turning <html> into a scroll container, which would break position:sticky. */
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;overflow-x:clip;
  scroll-padding-top:calc(var(--header-h) + 16px)}
body{
  font-family:Inter,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  background:var(--paper);color:var(--ink);
  line-height:1.5;font-size:16px;
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;
  overflow-x:hidden;
}
img,svg{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
input,select,textarea{font:inherit;color:inherit}
ul{list-style:none}
:focus-visible{outline:2px solid var(--ink);outline-offset:3px;border-radius:4px}

/* ---------- layout ---------- */
.wrap{width:100%;max-width:var(--maxw);margin-inline:auto;padding-inline:var(--gutter)}
.section{padding-block:clamp(56px,7vw,104px);position:relative}
.section--tint{background:var(--paper-2)}
.section--wash{background:linear-gradient(180deg,rgba(255,183,147,.28) 0%,rgba(255,255,255,0) 62%),var(--paper)}
.section--wash-cool{background:linear-gradient(180deg,rgba(164,184,255,.20) 0%,rgba(255,255,255,0) 46%),var(--paper)}

/* ---------- type scale (tight tracking is the signature) ---------- */
.eyebrow{
  font-size:11px;font-weight:600;letter-spacing:1.6px;text-transform:uppercase;
  color:var(--ink-3);margin-bottom:16px;
}
.h1{
  font-size:clamp(38px,6.2vw,72px);font-weight:700;line-height:1.02;letter-spacing:-2.4px;
}
.h2{
  font-size:clamp(28px,3.8vw,46px);font-weight:700;line-height:1.06;letter-spacing:-1.5px;
}
.h3{font-size:clamp(19px,2vw,24px);font-weight:600;line-height:1.15;letter-spacing:-.7px}
.h4{font-size:17px;font-weight:500;line-height:1.2;letter-spacing:-.68px}
.lede{
  font-size:clamp(16px,1.5vw,19px);line-height:1.6;letter-spacing:-.3px;color:var(--ink-2);
  max-width:60ch;
}
.small{font-size:13px;line-height:1.55;letter-spacing:-.2px;color:var(--ink-2)}
.muted{color:var(--ink-2)}
.ink-teal{color:var(--teal)}.ink-orange{color:var(--orange)}
.ink-coral{color:var(--coral)}.ink-indigo{color:var(--indigo)}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding-inline:26px;border-radius:var(--r-pill);
  font-size:15px;font-weight:500;letter-spacing:-.6px;white-space:nowrap;
  transition:transform .18s cubic-bezier(.22,.8,.28,1),background .18s ease,color .18s ease,border-color .18s ease;
}
.btn:hover{transform:translateY(-1px)}
.btn:active{transform:translateY(0)}
.btn--primary{background:var(--ink);color:#fff}
.btn--primary:hover{background:#000}
.btn--ghost{border:1px solid var(--line);background:var(--paper)}
.btn--ghost:hover{border-color:var(--ink)}
.btn--accent{background:linear-gradient(270deg,#FEC355 2%,#FF8B66);color:var(--ink);font-weight:600}
.btn--sm{height:40px;padding-inline:18px;font-size:14px}
.btn--block{width:100%}
.btn[disabled],.btn[aria-disabled=true]{opacity:.45;pointer-events:none}

/* ---------- header ---------- */
.hdr{
  position:sticky;top:0;z-index:60;background:rgba(255,255,255,.88);
  backdrop-filter:saturate(180%) blur(14px);-webkit-backdrop-filter:saturate(180%) blur(14px);
  border-bottom:1px solid var(--line-2);
}
.hdr__in{display:flex;align-items:center;gap:28px;height:var(--header-h)}
.hdr__logo{display:flex;align-items:center;gap:10px;font-weight:700;letter-spacing:-.8px;font-size:17px;flex-shrink:0}
.hdr__mark{width:28px;height:28px;border-radius:7px;background:var(--ink);color:#fff;
  display:grid;place-items:center;font-size:13px;font-weight:700;letter-spacing:-.5px}
.hdr__nav{display:flex;align-items:center;gap:26px;margin-left:auto}
.hdr__nav a{font-size:15px;font-weight:500;letter-spacing:-.6px;color:var(--ink-2);transition:color .16s}
.hdr__nav a:hover{color:var(--ink)}
.hdr__cta{flex-shrink:0}
.hdr__burger{display:none;margin-left:auto;width:40px;height:40px;border-radius:var(--r-sm);
  align-items:center;justify-content:center}
.hdr__burger span{display:block;width:19px;height:1.5px;background:var(--ink);position:relative}
.hdr__burger span::before,.hdr__burger span::after{content:"";position:absolute;left:0;width:19px;height:1.5px;background:var(--ink)}
.hdr__burger span::before{top:-6px}.hdr__burger span::after{top:6px}

/* modal — separate from .drawer on purpose: the drawer is an off-canvas panel
   that must be visibility:hidden when closed, the modal is display-toggled. */
.modal{position:fixed;inset:0;z-index:66;background:rgba(30,30,28,.5);
  display:none;align-items:center;justify-content:center;padding:var(--gutter);
  overflow-y:auto}
.modal[data-open=true]{display:flex}
.modal__box{background:var(--paper);border-radius:var(--r-lg);padding:28px;
  max-width:400px;width:100%}

/* scroll progress — straight from the reference */
.progress{position:fixed;top:0;left:0;height:2px;width:0;z-index:70;
  background:linear-gradient(90deg,var(--teal),var(--indigo));transition:width .1s linear}

/* mobile drawer */
/* A closed off-canvas panel must be pulled out of layout entirely, not just
   translated offscreen — a translated fixed panel still widens the document
   and creates a phantom horizontal scroll on mobile. */
.drawer{position:fixed;inset:0;z-index:65;background:var(--paper);
  transform:translateX(100%);
  transition:transform .28s cubic-bezier(.22,.8,.28,1),visibility .28s;
  visibility:hidden;pointer-events:none;
  display:flex;flex-direction:column;padding:var(--gutter);overflow-y:auto}
.drawer[data-open=true]{transform:translateX(0);visibility:visible;pointer-events:auto}
.drawer__top{display:flex;align-items:center;justify-content:space-between;height:calc(var(--header-h) - 24px);margin-bottom:24px}
.drawer__close{width:40px;height:40px;display:grid;place-items:center;font-size:24px;line-height:1}
.drawer__nav{display:flex;flex-direction:column;gap:4px}
.drawer__nav a{padding-block:14px;font-size:22px;font-weight:600;letter-spacing:-1px;border-bottom:1px solid var(--line-2)}

/* ---------- hero ---------- */
.hero{padding-block:clamp(48px,6vw,86px) clamp(40px,5vw,72px);
  background:linear-gradient(180deg,rgba(255,183,147,.30) 0%,rgba(255,255,255,0) 70%),var(--paper)}
.hero__grid{display:grid;grid-template-columns:1.08fr .92fr;gap:clamp(32px,5vw,72px);align-items:center}
.hero__title{margin-bottom:22px}
.hero__title em{font-style:normal;background:linear-gradient(270deg,#FEC355 2%,#FF8B66);
  -webkit-background-clip:text;background-clip:text;color:transparent}
.hero__actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:32px}
.hero__meta{display:flex;flex-wrap:wrap;gap:8px 22px;margin-top:30px;padding-top:26px;border-top:1px solid var(--line)}
.hero__meta li{font-size:13.5px;font-weight:500;letter-spacing:-.3px;color:var(--ink-2);
  display:flex;align-items:center;gap:7px}
.hero__meta li::before{content:"";width:5px;height:5px;border-radius:50%;background:var(--teal);flex-shrink:0}

/* stacked cover fan for the hero */
.fan{position:relative;height:clamp(300px,36vw,420px)}
.fan__item{position:absolute;top:50%;left:50%;width:clamp(160px,19vw,214px);
  border-radius:var(--r);overflow:hidden;box-shadow:0 18px 44px rgba(30,30,28,.14),0 2px 6px rgba(30,30,28,.06);
  transition:transform .4s cubic-bezier(.22,.8,.28,1)}
.fan__item:nth-child(1){transform:translate(-50%,-50%) rotate(-11deg) translateX(-116px) scale(.9);z-index:1}
.fan__item:nth-child(2){transform:translate(-50%,-50%) rotate(-4deg) translateX(-58px) scale(.96);z-index:2}
.fan__item:nth-child(3){transform:translate(-50%,-50%) rotate(0deg);z-index:3}
.fan__item:nth-child(4){transform:translate(-50%,-50%) rotate(5deg) translateX(58px) scale(.96);z-index:2}
.fan__item:nth-child(5){transform:translate(-50%,-50%) rotate(11deg) translateX(116px) scale(.9);z-index:1}
.fan:hover .fan__item:nth-child(1){transform:translate(-50%,-50%) rotate(-13deg) translateX(-134px) scale(.9)}
.fan:hover .fan__item:nth-child(5){transform:translate(-50%,-50%) rotate(13deg) translateX(134px) scale(.9)}

/* ---------- section heading block ---------- */
.shead{max-width:74ch;margin-bottom:clamp(32px,4vw,54px)}
.shead .h2{margin-bottom:16px}
.shead--split{display:grid;grid-template-columns:1fr auto;gap:24px;align-items:end;max-width:none}

/* ---------- stat strip ---------- */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);
  border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden}
.stats__item{background:var(--paper);padding:clamp(22px,2.6vw,32px)}
.stats__n{font-size:clamp(26px,3.4vw,40px);font-weight:700;letter-spacing:-1.6px;line-height:1;margin-bottom:9px}
.stats__l{font-size:13.5px;font-weight:500;letter-spacing:-.3px;color:var(--ink-2);line-height:1.4}

/* ---------- book grid ---------- */
.books{display:grid;grid-template-columns:repeat(auto-fill,minmax(268px,1fr));gap:22px}
.book{
  display:flex;flex-direction:column;background:var(--paper);
  border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;
  transition:transform .22s cubic-bezier(.22,.8,.28,1),box-shadow .22s ease,border-color .22s ease;
}
.book:hover{transform:translateY(-3px);border-color:#c9c9c9;box-shadow:0 14px 34px rgba(30,30,28,.09)}
.book__cover{padding:22px 22px 0;background:var(--paper-2)}
/* aspect-ratio holds the box before the image decodes, so nothing jumps */
.cover{width:100%;height:auto;aspect-ratio:800/1108;object-fit:cover;background:var(--line-2)}
.book__cover .cover{border-radius:var(--r) var(--r) 0 0;
  box-shadow:0 -1px 0 rgba(0,0,0,.02),0 10px 26px rgba(30,30,28,.13)}
.book__body{padding:22px;display:flex;flex-direction:column;flex:1}
.book__cat{font-size:11px;font-weight:600;letter-spacing:1.3px;text-transform:uppercase;margin-bottom:11px}
.book__title{font-size:21px;font-weight:700;letter-spacing:-1px;line-height:1.12;margin-bottom:4px}
.book__title-hi{font-size:14px;font-weight:500;color:var(--ink-3);letter-spacing:-.2px;margin-bottom:11px}
.book__sub{font-size:14px;line-height:1.5;letter-spacing:-.25px;color:var(--ink-2);margin-bottom:16px}
.book__meta{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:18px}
.chip{font-size:11.5px;font-weight:500;letter-spacing:-.2px;color:var(--ink-2);
  border:1px solid var(--line);border-radius:var(--r-pill);padding:4px 11px;white-space:nowrap}
.book__foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:14px;
  padding-top:18px;border-top:1px solid var(--line-2)}
.book__price{display:flex;align-items:baseline;gap:8px}
.book__price b{font-size:22px;font-weight:700;letter-spacing:-1px}
.book__price s{font-size:13.5px;color:var(--ink-3);letter-spacing:-.2px}
.book__soon{font-size:12.5px;font-weight:600;letter-spacing:-.2px;color:var(--ink-3);
  border:1px dashed var(--line);border-radius:var(--r-pill);padding:6px 13px}

/* ---------- category / benefit icon grids ---------- */
/* auto-FIT, not auto-fill: an empty track would show the 1px-gap background
   colour as a dead grey cell when the item count does not fill the row. */
.tiles{display:grid;grid-template-columns:repeat(auto-fit,minmax(210px,1fr));gap:1px;
  background:var(--line);border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden}
.tile{background:var(--paper);padding:26px 22px;display:flex;flex-direction:column;gap:13px;
  transition:background .18s ease}
.tile:hover{background:var(--paper-2)}
.tile__ico{width:38px;height:38px;border-radius:var(--r-sm);display:grid;place-items:center;flex-shrink:0}
.tile__ico svg{width:19px;height:19px;stroke-width:1.6;fill:none;stroke:currentColor}
.tile__t{font-size:16px;font-weight:600;letter-spacing:-.6px;line-height:1.2}
.tile__d{font-size:13.5px;line-height:1.5;letter-spacing:-.25px;color:var(--ink-2)}

/* ---------- faq ---------- */
.faq{border-top:1px solid var(--line);max-width:900px}
.faq__item{border-bottom:1px solid var(--line)}
.faq__q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding-block:24px;text-align:left;font-size:clamp(16px,1.7vw,19px);font-weight:600;
  letter-spacing:-.7px;line-height:1.3}
.faq__sign{flex-shrink:0;width:26px;height:26px;border:1px solid var(--line);border-radius:50%;
  display:grid;place-items:center;position:relative;transition:transform .24s ease,border-color .24s}
.faq__sign::before,.faq__sign::after{content:"";position:absolute;background:var(--ink);border-radius:1px}
.faq__sign::before{width:11px;height:1.5px}
.faq__sign::after{width:1.5px;height:11px;transition:opacity .24s ease}
.faq__item[data-open=true] .faq__sign{transform:rotate(180deg);border-color:var(--ink)}
.faq__item[data-open=true] .faq__sign::after{opacity:0}
.faq__a{display:grid;grid-template-rows:0fr;transition:grid-template-rows .28s cubic-bezier(.22,.8,.28,1)}
.faq__item[data-open=true] .faq__a{grid-template-rows:1fr}
.faq__a>div{overflow:hidden}
.faq__a p{padding-bottom:24px;font-size:15.5px;line-height:1.65;letter-spacing:-.25px;color:var(--ink-2);max-width:70ch}

/* ---------- closing cta band ---------- */
.band{background:var(--ink);color:#fff;border-radius:var(--r-lg);
  padding:clamp(36px,5vw,64px);position:relative;overflow:hidden}
.band::after{content:"";position:absolute;inset:0;pointer-events:none;
  background:linear-gradient(115deg,rgba(64,208,203,.20) 0%,rgba(105,129,211,.16) 44%,transparent 72%)}
.band>*{position:relative;z-index:1}
.band .h2{margin-bottom:16px}
.band .lede{color:rgba(255,255,255,.72)}
.band .btn--ghost{border-color:rgba(255,255,255,.28);background:transparent;color:#fff}
.band .btn--ghost:hover{border-color:#fff}
.band .btn--primary{background:#fff;color:var(--ink)}
.band .btn--primary:hover{background:#f1f1f1}

/* ---------- footer ---------- */
.ftr{background:var(--paper-2);border-top:1px solid var(--line);padding-block:clamp(48px,5vw,72px) 32px}
.ftr__grid{display:grid;grid-template-columns:1.5fr repeat(3,1fr);gap:clamp(28px,4vw,56px);margin-bottom:44px}
.ftr__brand .hdr__logo{margin-bottom:16px}
.ftr__col h4{font-size:12px;font-weight:600;letter-spacing:1.3px;text-transform:uppercase;
  color:var(--ink-3);margin-bottom:16px}
.ftr__col li{margin-bottom:11px}
.ftr__col a,.ftr__col span{font-size:14.5px;font-weight:500;letter-spacing:-.4px;color:var(--ink-2);transition:color .16s}
.ftr__col a:hover{color:var(--ink)}
.ftr__legal{border-top:1px solid var(--line);padding-top:26px;
  display:flex;flex-wrap:wrap;gap:12px 28px;justify-content:space-between;align-items:center}
.ftr__legal p{font-size:12.5px;line-height:1.6;letter-spacing:-.2px;color:var(--ink-3);max-width:62ch}

/* ---------- forms ---------- */
.field{margin-bottom:16px}
.field label{display:block;font-size:13px;font-weight:600;letter-spacing:-.3px;margin-bottom:7px}
.field input,.field select,.field textarea{
  width:100%;height:50px;padding-inline:15px;border:1px solid var(--line);border-radius:var(--r);
  background:var(--paper);font-size:15.5px;letter-spacing:-.3px;transition:border-color .16s,box-shadow .16s}
.field textarea{height:auto;padding-block:13px;min-height:120px;resize:vertical}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--ink);box-shadow:0 0 0 3px rgba(30,30,28,.07)}
.field__err{display:block;font-size:12.5px;color:var(--coral);margin-top:6px;min-height:1em}
.note{background:var(--paper-2);border:1px solid var(--line);border-radius:var(--r);
  padding:14px 16px;font-size:13.5px;line-height:1.55;letter-spacing:-.25px;color:var(--ink-2)}
.note--warn{background:#FFF6F1;border-color:#FFD9C6}
.note--ok{background:#EEFFFE;border-color:#BFEFED}

/* ---------- legal / long-form pages ---------- */
.prose{max-width:76ch}
.prose h2{font-size:clamp(21px,2.4vw,27px);font-weight:700;letter-spacing:-1px;line-height:1.15;
  margin-top:46px;margin-bottom:14px}
.prose h2:first-child{margin-top:0}
.prose h3{font-size:17px;font-weight:600;letter-spacing:-.6px;margin-top:28px;margin-bottom:9px}
.prose p{font-size:15.5px;line-height:1.72;letter-spacing:-.25px;color:var(--ink-2);margin-bottom:16px}
.prose ul{margin:0 0 18px;padding-left:0}
.prose li{font-size:15.5px;line-height:1.72;letter-spacing:-.25px;color:var(--ink-2);
  margin-bottom:9px;padding-left:20px;position:relative}
.prose li::before{content:"";position:absolute;left:3px;top:11px;width:5px;height:5px;
  border-radius:50%;background:var(--line)}
.prose strong{color:var(--ink);font-weight:600}
.prose a{color:var(--ink);text-decoration:underline;text-underline-offset:3px;text-decoration-color:var(--line)}
.prose a:hover{text-decoration-color:var(--ink)}
.prose table{width:100%;border-collapse:collapse;margin-bottom:22px;font-size:14.5px}
.prose th,.prose td{border:1px solid var(--line);padding:11px 14px;text-align:left;letter-spacing:-.25px}
.prose th{background:var(--paper-2);font-weight:600;color:var(--ink)}
.prose td{color:var(--ink-2)}
.table-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch}

.pagehead{padding-block:clamp(40px,5vw,68px) clamp(28px,3vw,40px);
  background:linear-gradient(180deg,rgba(164,184,255,.16) 0%,rgba(255,255,255,0) 100%),var(--paper);
  border-bottom:1px solid var(--line-2)}

/* ---------- checkout ---------- */
.co{display:grid;grid-template-columns:1.15fr .85fr;gap:clamp(28px,4vw,56px);align-items:start}
.co__card{border:1px solid var(--line);border-radius:var(--r-lg);padding:clamp(22px,3vw,32px);background:var(--paper)}
.co__summary{position:sticky;top:calc(var(--header-h) + 20px);background:var(--paper-2)}
.co__line{display:flex;justify-content:space-between;gap:16px;padding-block:13px;
  border-bottom:1px solid var(--line);font-size:14.5px;letter-spacing:-.3px}
.co__line span:first-child{color:var(--ink-2)}
.co__line--total{border-bottom:0;padding-top:18px;font-size:19px;font-weight:700;letter-spacing:-.8px}
.co__line--total span:first-child{color:var(--ink)}
.co__item{display:flex;gap:14px;align-items:flex-start;padding-bottom:18px;margin-bottom:6px;
  border-bottom:1px solid var(--line)}
.co__item .cover{width:56px;flex-shrink:0;border-radius:var(--r-sm);box-shadow:0 4px 12px rgba(30,30,28,.12)}
.langpick{display:flex;gap:10px}
.langpick label{flex:1;border:1px solid var(--line);border-radius:var(--r);padding:13px 15px;
  cursor:pointer;font-size:14.5px;font-weight:500;letter-spacing:-.3px;transition:border-color .16s,background .16s}
.langpick input{position:absolute;opacity:0;pointer-events:none}
.langpick input:checked+label,.langpick label:has(input:checked){border-color:var(--ink);background:var(--paper-2)}
.langpick label span{display:block;font-size:12.5px;color:var(--ink-3);margin-top:3px;font-weight:400}

/* ---------- thank you / downloads ---------- */
.dl{border:1px solid var(--line);border-radius:var(--r);padding:16px 18px;margin-bottom:12px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;background:var(--paper)}
.dl__t{font-size:15.5px;font-weight:600;letter-spacing:-.5px}
.dl__m{font-size:12.5px;color:var(--ink-3);letter-spacing:-.2px;margin-top:2px}

/* ---------- utilities ---------- */
.stack-8>*+*{margin-top:8px}
.stack-16>*+*{margin-top:16px}
.stack-24>*+*{margin-top:24px}
.center{text-align:center}
.center .lede,.center .shead{margin-inline:auto}
.hide{display:none !important}
.sr{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;
  clip:rect(0,0,0,0);white-space:nowrap;border:0}

/* ============================================================
   RESPONSIVE — nothing may break or overflow at any width
   ============================================================ */
@media (max-width:1024px){
  .hero__grid{grid-template-columns:1fr;gap:44px}
  .fan{height:clamp(260px,44vw,340px)}
  .stats{grid-template-columns:repeat(2,1fr)}
  .ftr__grid{grid-template-columns:1fr 1fr;gap:36px}
  .co{grid-template-columns:1fr}
  .co__summary{position:static;order:-1}
}
@media (max-width:760px){
  :root{--gutter:18px;--header-h:64px}
  .hdr__nav,.hdr__cta{display:none}
  .hdr__burger{display:flex}
  /* tighten the cover fan — at full spread the outer covers run past the
     viewport edge on a phone */
  .fan__item{width:clamp(122px,33vw,168px)}
  .fan__item:nth-child(1){transform:translate(-50%,-50%) rotate(-11deg) translateX(-62px) scale(.88)}
  .fan__item:nth-child(2){transform:translate(-50%,-50%) rotate(-4deg)  translateX(-31px) scale(.95)}
  .fan__item:nth-child(4){transform:translate(-50%,-50%) rotate(5deg)   translateX(31px)  scale(.95)}
  .fan__item:nth-child(5){transform:translate(-50%,-50%) rotate(11deg)  translateX(62px)  scale(.88)}
  .fan:hover .fan__item:nth-child(1){transform:translate(-50%,-50%) rotate(-11deg) translateX(-62px) scale(.88)}
  .fan:hover .fan__item:nth-child(5){transform:translate(-50%,-50%) rotate(11deg)  translateX(62px)  scale(.88)}
  .h1{letter-spacing:-1.6px}
  .h2{letter-spacing:-1.1px}
  .books{grid-template-columns:1fr}
  .tiles{grid-template-columns:1fr 1fr}
  .shead--split{grid-template-columns:1fr;align-items:start}
  .hero__actions .btn{flex:1;min-width:180px}
  .ftr__legal{flex-direction:column;align-items:flex-start}
}
@media (max-width:460px){
  .stats{grid-template-columns:1fr}
  .tiles{grid-template-columns:1fr}
  .ftr__grid{grid-template-columns:1fr}
  .langpick{flex-direction:column}
  .book__foot{flex-direction:column;align-items:stretch}
  .book__foot .btn{width:100%}
}

/* zoomed-out safety — the reference holds up at 33%, so must this */
@media (min-width:1600px){
  :root{--maxw:1320px}
}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.01ms !important;transition-duration:.01ms !important;
    scroll-behavior:auto !important}
  .fan__item{transition:none}
}

@media print{
  .hdr,.ftr,.progress,.drawer,.band{display:none !important}
  body{font-size:11pt}
}
