/* =========================================================================
   aiGodess · Books — light holographic 3D bookstore
   ========================================================================= */

:root{
  --paper:#f5f7fd;
  --paper-2:#ffffff;
  --ink:#0f1320;
  --ink-2:#2b3346;
  --muted:#616b83;
  --line:rgba(15,19,32,.10);

  --iris-1:#22c1e8;   /* cyan   */
  --iris-2:#7c6cff;   /* violet */
  --iris-3:#ff6f9c;   /* rose   */
  --iris-4:#ffbf3d;   /* amber  */

  --glass:rgba(255,255,255,.62);
  --glass-2:rgba(255,255,255,.78);
  --glass-line:rgba(255,255,255,.85);

  --sh-1:0 1px 2px rgba(15,19,32,.05), 0 8px 24px -12px rgba(15,19,32,.18);
  --sh-2:0 2px 6px rgba(15,19,32,.05), 0 30px 60px -24px rgba(21,26,54,.30);
  --sh-3:0 40px 90px -30px rgba(21,26,54,.42);

  --r-s:12px; --r-m:20px; --r-l:30px; --r-xl:44px;
  --ui:"Sora", ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --display:"Instrument Serif", "Iowan Old Style", Georgia, "Times New Roman", serif;
  --pad:clamp(20px, 5vw, 72px);
  --maxw:1280px;
}

*,*::before,*::after{box-sizing:border-box}
/* an author `display` rule beats the UA stylesheet's [hidden]{display:none}, so a
   button hidden by script (e.g. a retailer a title is not listed on) would still
   render. Make hidden mean hidden. */
[hidden]{display:none !important}
html{-webkit-text-size-adjust:100%; scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){ html{scroll-behavior:auto} }

body{
  margin:0; background:var(--paper); color:var(--ink);
  font-family:var(--ui); font-weight:400; font-size:clamp(15px,.55vw + 13.5px,17px);
  line-height:1.65; letter-spacing:-.005em;
  -webkit-font-smoothing:antialiased; text-rendering:optimizeLegibility;
  overflow-x:hidden;
}
img{max-width:100%; height:auto; display:block}
a{color:inherit}
h1,h2,h3{margin:0; font-weight:400; letter-spacing:-.02em}
p{margin:0}
button{font:inherit; color:inherit}

.skip{position:fixed; left:-999px; top:12px; z-index:99; background:#fff; padding:10px 16px; border-radius:99px}
.skip:focus{left:12px}

/* ---------------------------------------------------------- aurora field */
.aurora{position:fixed; inset:0; z-index:0; pointer-events:none; overflow:hidden}
.aurora span{
  position:absolute; display:block; border-radius:50%;
  filter:blur(90px); opacity:.55; will-change:transform;
}
.aurora .a1{width:52vw; height:52vw; left:-12vw; top:-14vw;
  background:radial-gradient(circle at 40% 40%, var(--iris-1), transparent 62%);
  animation:drift1 34s ease-in-out infinite alternate}
.aurora .a2{width:46vw; height:46vw; right:-10vw; top:-8vw;
  background:radial-gradient(circle at 55% 45%, var(--iris-2), transparent 62%);
  animation:drift2 41s ease-in-out infinite alternate}
.aurora .a3{width:44vw; height:44vw; right:2vw; top:48vh;
  background:radial-gradient(circle at 50% 50%, var(--iris-3), transparent 64%);
  opacity:.4; animation:drift3 47s ease-in-out infinite alternate}
.aurora .a4{width:38vw; height:38vw; left:6vw; top:64vh;
  background:radial-gradient(circle at 50% 50%, var(--iris-4), transparent 64%);
  opacity:.34; animation:drift4 39s ease-in-out infinite alternate}
@keyframes drift1{to{transform:translate3d(7vw,5vh,0) scale(1.14)}}
@keyframes drift2{to{transform:translate3d(-6vw,8vh,0) scale(1.09)}}
@keyframes drift3{to{transform:translate3d(-8vw,-7vh,0) scale(1.16)}}
@keyframes drift4{to{transform:translate3d(9vw,-5vh,0) scale(1.11)}}
.grain{
  position:absolute; inset:-50%; opacity:.05; mix-blend-mode:multiply;
  background-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='140' height='140'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='3'/></filter><rect width='140' height='140' filter='url(%23n)'/></svg>");
}
@media (prefers-reduced-motion:reduce){ .aurora span{animation:none} }

/* ---------------------------------------------------------- shared bits */
.eyebrow{
  display:inline-flex; align-items:center; gap:.6em;
  font-size:.72rem; font-weight:600; letter-spacing:.16em; text-transform:uppercase;
  color:var(--muted); margin-bottom:.7rem;
}
.eyebrow .dot{
  width:7px; height:7px; border-radius:50%;
  background:linear-gradient(135deg,var(--iris-1),var(--iris-2));
  box-shadow:0 0 0 4px rgba(124,108,255,.14);
}
.sec-head{max-width:820px; margin:0 auto clamp(20px,2.6vw,30px); text-align:center}
.sec-head h2, .author h2, .watch h2{
  font-family:var(--display); font-size:clamp(2.1rem,4.6vw,3.9rem); line-height:1.04;
}
.sec-sub{color:var(--muted); margin-top:1rem; font-size:1.02rem}
section{position:relative; z-index:1}

.btn{
  --bh:52px;
  display:inline-flex; align-items:center; justify-content:center; gap:.55em;
  /* min-height + no shrink: inside a column flex container a plain `height` is only a
     hint, and the buttons were being crushed from 44px to 24px — below a usable tap
     target. These two keep every button its full size wherever it is used. */
  height:var(--bh); min-height:var(--bh); flex-shrink:0;
  padding:0 26px; border-radius:99px; border:1px solid transparent;
  font-size:.94rem; font-weight:600; letter-spacing:-.01em; text-decoration:none;
  cursor:pointer; white-space:nowrap;
  transition:transform .25s cubic-bezier(.2,.8,.3,1), box-shadow .25s, background .25s, border-color .25s;
}
.btn:hover{transform:translateY(-2px)}
.btn:active{transform:translateY(0)}
.btn-solid{
  color:#fff; background:linear-gradient(120deg,#1b2136,#2b3450);
  box-shadow:0 10px 22px -12px rgba(20,26,54,.9);
}
.btn-solid:hover{box-shadow:0 18px 34px -14px rgba(20,26,54,.85)}
.btn-ghost{
  background:var(--glass); border-color:var(--glass-line);
  backdrop-filter:blur(14px) saturate(1.5); -webkit-backdrop-filter:blur(14px) saturate(1.5);
  box-shadow:var(--sh-1);
}
.btn-ghost:hover{background:var(--glass-2)}
:focus-visible{outline:2px solid var(--iris-2); outline-offset:3px; border-radius:6px}

/* ---------------------------------------------------------- nav */
.nav{
  position:sticky; top:0; z-index:40;
  display:flex; align-items:center; gap:22px;
  padding:14px var(--pad); margin:0 auto; max-width:100%;
  background:rgba(246,248,253,.72); backdrop-filter:blur(18px) saturate(1.6);
  -webkit-backdrop-filter:blur(18px) saturate(1.6);
  border-bottom:1px solid transparent; transition:border-color .3s, background .3s;
}
.nav.is-stuck{border-bottom-color:var(--line); background:rgba(246,248,253,.88)}
.brand{display:inline-flex; align-items:center; gap:11px; text-decoration:none}
.brand img{border-radius:10px}
.brand-txt{display:flex; flex-direction:column; white-space:nowrap; line-height:1.05; font-size:1.02rem; font-weight:600}
.brand-txt .wm{white-space:nowrap}
.brand-txt b{font-weight:700}
.brand-txt em{font-style:normal; font-size:.62rem; letter-spacing:.19em; text-transform:uppercase; color:var(--muted); margin-top:3px}
.nav-links{display:flex; gap:26px; margin-left:auto; font-size:.92rem}
.nav-links a{text-decoration:none; color:var(--ink-2); position:relative; padding:4px 0}
.nav-links a::after{
  content:""; position:absolute; left:0; right:100%; bottom:0; height:1.5px;
  background:linear-gradient(90deg,var(--iris-1),var(--iris-2));
  transition:right .3s cubic-bezier(.2,.8,.3,1);
}
.nav-links a:hover::after{right:0}
.nav-cta{--bh:44px; padding:0 20px; font-size:.87rem}
.nav-burger{display:none; width:44px; height:44px; border:0; background:none; flex-direction:column; gap:5px; align-items:center; justify-content:center; cursor:pointer}
.nav-burger span{width:20px; height:1.6px; background:var(--ink); border-radius:2px; transition:transform .3s}

/* ---------------------------------------------------------- hero */
.hero{
  position:relative; min-height:min(88svh,780px);
  display:flex; align-items:center; padding:clamp(20px,3vh,44px) var(--pad) clamp(36px,5vh,68px);
}
#stage{
  position:absolute; inset:0; width:100%; height:100%; z-index:1;
  touch-action:pan-y; cursor:grab; display:block;
}
/* keeps the headline legible where the ring passes behind it */
.hero-shade{
  position:absolute; inset:0; z-index:2; pointer-events:none;
  /* the shelf runs the full width behind the copy; without a firm scrim the ghosted
     covers show through the trust cards and it reads as a rendering fault */
  background:
    linear-gradient(100deg, rgba(246,248,253,.99) 0%, rgba(246,248,253,.97) 34%,
                    rgba(246,248,253,.62) 46%, rgba(246,248,253,0) 62%),
    linear-gradient(180deg, rgba(246,248,253,.65) 0%, rgba(246,248,253,0) 22%);
}
.hero-fallback{position:absolute; inset:0; margin:auto; max-height:70%; z-index:1}
.hero-inner{
  position:relative; z-index:3; width:100%; max-width:var(--maxw); margin:0 auto;
  pointer-events:none;
}
.hero-copy{max-width:min(640px,54%); pointer-events:auto}
.hero-hint{
  margin-top:1.15rem; font-size:.74rem; letter-spacing:.1em; text-transform:uppercase;
  color:var(--muted); display:flex; align-items:center; gap:.6em;
}
.hero-hint::before{
  content:""; width:26px; height:1px; background:linear-gradient(90deg,var(--iris-2),transparent);
}
.hero h1{font-family:var(--display); font-size:clamp(2.9rem,6.6vw,5.6rem); line-height:.98; letter-spacing:-.03em}
.hero h1 .line{display:block}
.hero h1 .ital{
  font-style:italic;
  background:linear-gradient(100deg,var(--iris-1) 0%,var(--iris-2) 42%,var(--iris-3) 78%);
  -webkit-background-clip:text; background-clip:text; color:transparent;
}
.lede{margin-top:1rem; max-width:35ch; color:var(--ink-2); font-size:clamp(1rem,.35vw + .93rem,1.12rem)}
.lede strong{font-weight:600}
.hero-cta{display:flex; flex-wrap:wrap; gap:10px; margin-top:1.4rem}
.hero-where{
  margin-top:.9rem; font-size:.87rem; color:var(--ink-2);
  display:inline-flex; flex-wrap:wrap; align-items:center; gap:.2em;
  padding:9px 16px; border-radius:99px;
  background:var(--glass); border:1px solid var(--glass-line); box-shadow:var(--sh-1);
  backdrop-filter:blur(14px) saturate(1.5); -webkit-backdrop-filter:blur(14px) saturate(1.5);
}
.hero-where b{font-weight:600}

/* video inset — a floating picture-in-picture pane over the 3D stage */
.inset{
  position:absolute; z-index:4; right:var(--pad); top:50%; translate:0 -58%;
  width:clamp(262px,26vw,412px); margin:0; perspective:1400px;
}
.inset-frame{
  position:relative; border-radius:var(--r-l); overflow:hidden; aspect-ratio:16/9;
  transform:rotateY(-7deg) rotateX(3deg) translateZ(0);
  background:linear-gradient(150deg,#eef2fb,#dfe6f6);
  border:1px solid var(--glass-line);
  box-shadow:var(--sh-3), 0 0 0 1px rgba(124,108,255,.10),
             0 0 70px -18px rgba(34,193,232,.55);
  transition:transform .7s cubic-bezier(.2,.8,.3,1);
}
.inset:hover .inset-frame{transform:rotateY(-2deg) rotateX(1deg) scale(1.015)}
.inset video{width:100%; height:100%; object-fit:cover; display:block}
.inset-glare{
  position:absolute; inset:0; pointer-events:none; mix-blend-mode:screen; opacity:.5;
  background:linear-gradient(115deg,transparent 30%,rgba(255,255,255,.55) 46%,transparent 60%);
  transform:translateX(-30%); animation:glare 7s ease-in-out infinite;
}
@keyframes glare{0%,62%{transform:translateX(-60%)}100%{transform:translateX(60%)}}
@media (prefers-reduced-motion:reduce){ .inset-glare{animation:none; opacity:.2} }
.inset figcaption{margin-top:14px; font-size:.8rem; color:var(--muted); text-align:center}
.inset-sound{position:absolute; right:12px; bottom:12px; border:0; border-radius:99px; padding:7px 14px; font-size:.75rem; background:var(--glass-2); cursor:pointer}

.scroll-cue{
  position:absolute; left:50%; bottom:24px; transform:translateX(-50%); z-index:2;
  display:flex; flex-direction:column; align-items:center; gap:7px;
  font-size:.68rem; letter-spacing:.2em; text-transform:uppercase; color:var(--muted);
}
.scroll-cue span{width:1px; height:34px; background:linear-gradient(var(--iris-2),transparent); animation:cue 2.4s ease-in-out infinite}
@keyframes cue{0%,100%{opacity:.25; transform:scaleY(.6)}50%{opacity:1; transform:scaleY(1)}}

/* ---------------------------------------------------------- author */
.author{padding:clamp(22px,3vw,40px) var(--pad) clamp(30px,4vw,54px)}
.author-grid{
  max-width:var(--maxw); margin:0 auto;
  display:grid; grid-template-columns:minmax(0,.85fr) minmax(0,1.15fr);
  gap:clamp(30px,5vw,80px); align-items:center;
}
.author-portrait{position:relative}
.author-portrait > img{
  width:100%; border-radius:var(--r-xl); object-fit:cover; object-position:50% 12%; aspect-ratio:3/4;
  box-shadow:var(--sh-2); border:1px solid var(--glass-line); position:relative; z-index:1;
}
.portrait-glow{
  position:absolute; inset:-8% -6% -12%; border-radius:50%; z-index:0; filter:blur(48px); opacity:.6;
  background:conic-gradient(from 210deg,var(--iris-1),var(--iris-2),var(--iris-3),var(--iris-4),var(--iris-1));
}
.portrait-tag{
  position:absolute; z-index:2; left:-6px; bottom:22px;
  display:flex; align-items:center; gap:11px; padding:11px 18px 11px 12px; border-radius:99px;
  background:var(--glass-2); border:1px solid var(--glass-line); box-shadow:var(--sh-2);
  backdrop-filter:blur(18px) saturate(1.6); -webkit-backdrop-filter:blur(18px) saturate(1.6);
}
.portrait-tag img{width:34px; height:34px; flex:0 0 34px; border-radius:9px}
.portrait-tag div{display:flex; flex-direction:column; line-height:1.2}
.portrait-tag b{font-size:.94rem}
.portrait-tag span{font-size:.73rem; color:var(--muted)}
.author-copy h2{margin-bottom:1rem}
.author-lede{color:var(--ink-2); font-size:1.08rem; max-width:52ch}
.author-copy blockquote{
  margin:1.1rem 0 0; padding:18px 22px; border-radius:var(--r-m);
  background:var(--glass); border:1px solid var(--glass-line); box-shadow:var(--sh-1);
  backdrop-filter:blur(14px) saturate(1.4); -webkit-backdrop-filter:blur(14px) saturate(1.4);
  font-size:1rem; color:var(--ink-2); position:relative;
}
.author-copy blockquote::before{
  content:""; position:absolute; left:0; top:18px; bottom:18px; width:3px; border-radius:3px;
  background:linear-gradient(var(--iris-1),var(--iris-2));
}
.bio-source{margin-top:.7rem; font-size:.76rem; color:var(--muted)}
.stats{list-style:none; display:grid; grid-template-columns:repeat(4,minmax(0,1fr)); gap:12px; padding:0; margin:1.3rem 0 0}
.stats li{display:flex; flex-direction:column; gap:2px}
.stats b{
  font-family:var(--display); font-size:clamp(1.7rem,2.6vw,2.5rem); line-height:1;
  background:linear-gradient(120deg,var(--iris-2),var(--iris-1));
  -webkit-background-clip:text; background-clip:text; color:transparent;
}
.stats span{font-size:.76rem; color:var(--muted); letter-spacing:.02em}
.author-links{display:flex; flex-wrap:wrap; gap:10px; margin-top:1.3rem}

/* ---------------------------------------------------------- series rail */
.series{padding:clamp(28px,3.5vw,48px) var(--pad)}
.series-rail{
  max-width:var(--maxw); margin:0 auto;
  display:grid; grid-template-columns:repeat(auto-fit,minmax(240px,1fr)); gap:14px;
}
.series-card{
  position:relative; overflow:hidden; padding:26px 24px 24px; border-radius:var(--r-l);
  background:var(--glass); border:1px solid var(--glass-line); box-shadow:var(--sh-1);
  backdrop-filter:blur(16px) saturate(1.5); -webkit-backdrop-filter:blur(16px) saturate(1.5);
  text-decoration:none; display:flex; flex-direction:column; gap:10px; min-height:210px;
  transition:transform .4s cubic-bezier(.2,.8,.3,1), box-shadow .4s;
}
.series-card:hover{transform:translateY(-5px); box-shadow:var(--sh-2)}
.series-card::before{
  content:""; position:absolute; inset:0 0 auto; height:3px;
  background:linear-gradient(90deg,var(--c1),var(--c2));
}
.series-card .n{
  font-family:var(--display); font-size:2.6rem; line-height:1; color:transparent;
  background:linear-gradient(120deg,var(--c1),var(--c2)); -webkit-background-clip:text; background-clip:text;
}
.series-card h3{font-size:1.16rem; font-weight:600; letter-spacing:-.015em}
.series-card p{font-size:.88rem; color:var(--muted)}
.series-card .go{margin-top:auto; font-size:.82rem; font-weight:600; display:inline-flex; align-items:center; gap:.4em}

/* ---------------------------------------------------------- filters */
.filters{
  display:flex; flex-wrap:wrap; justify-content:center; gap:8px;
  max-width:var(--maxw); margin:0 auto clamp(18px,2.2vw,26px);
}
.chip{
  border:1px solid var(--glass-line); background:var(--glass); border-radius:99px;
  padding:9px 18px; font-size:.86rem; font-weight:500; cursor:pointer; box-shadow:var(--sh-1);
  backdrop-filter:blur(12px) saturate(1.4); -webkit-backdrop-filter:blur(12px) saturate(1.4);
  transition:background .25s, color .25s, transform .25s, box-shadow .25s;
}
.chip:hover{transform:translateY(-2px)}
.chip[aria-selected="true"]{background:linear-gradient(120deg,#1b2136,#2f3852); color:#fff; border-color:transparent}
.chip i{font-style:normal; opacity:.55; margin-left:.45em; font-size:.8em}

/* ---------------------------------------------------------- shelf grid */
.shelf{padding:clamp(26px,3.5vw,44px) var(--pad) clamp(32px,4vw,58px)}
.grid{
  max-width:var(--maxw); margin:0 auto;
  display:grid; grid-template-columns:repeat(auto-fill,minmax(280px,1fr));
  gap:clamp(14px,1.4vw,20px);
}
.card{
  position:relative; display:flex; flex-direction:column;
  border-radius:var(--r-l); padding:20px 18px 18px;
  background:var(--glass); border:1px solid var(--glass-line); box-shadow:var(--sh-1);
  backdrop-filter:blur(16px) saturate(1.5); -webkit-backdrop-filter:blur(16px) saturate(1.5);
  transform-style:preserve-3d; will-change:transform;
  transition:box-shadow .45s cubic-bezier(.2,.8,.3,1), transform .45s cubic-bezier(.2,.8,.3,1);
  overflow:hidden;
}
.card::after{                                   /* holographic sweep on hover */
  content:""; position:absolute; inset:0; pointer-events:none; opacity:0;
  background:linear-gradient(115deg,transparent 34%,rgba(255,255,255,.7) 48%,transparent 62%);
  transform:translateX(-40%); transition:opacity .4s;
}
.card:hover::after{opacity:.85; animation:sweep 1.1s cubic-bezier(.3,.7,.3,1)}
@keyframes sweep{to{transform:translateX(60%)}}
.card:hover{box-shadow:var(--sh-2)}
.card.is-hidden{display:none}
.card-in{animation:cardIn .6s cubic-bezier(.2,.8,.3,1) both}
@keyframes cardIn{from{opacity:0; transform:translateY(18px)}to{opacity:1; transform:none}}

.card-art{
  position:relative; display:flex; align-items:flex-end; justify-content:center;
  height:clamp(200px,22vw,250px); margin-bottom:14px; cursor:pointer; border:0; background:none; padding:0; width:100%;
}
.card-art img{
  max-height:100%; width:auto; transform-origin:50% 100%;
  filter:drop-shadow(0 26px 30px rgba(21,26,54,.28));
  transition:transform .55s cubic-bezier(.2,.8,.3,1);
}
.card:hover .card-art img{transform:translateY(-8px) rotate(-1.2deg) scale(1.045)}
.card-art::before{                              /* soft contact shadow + halo */
  content:""; position:absolute; left:50%; bottom:-2px; translate:-50% 0;
  width:66%; height:26px; border-radius:50%; filter:blur(13px);
  background:radial-gradient(ellipse,rgba(21,26,54,.30),transparent 70%);
}
.card-art::after{
  content:""; position:absolute; inset:auto 0 8% 0; height:70%; z-index:-1; filter:blur(42px); opacity:.5;
  background:radial-gradient(ellipse at 50% 60%, var(--halo), transparent 68%);
}

.card-kicker{font-size:.68rem; font-weight:600; letter-spacing:.14em; text-transform:uppercase; color:var(--muted); display:flex; gap:.6em; align-items:center}
.card-kicker s{text-decoration:none; width:6px; height:6px; border-radius:50%; background:var(--halo)}
.card h3{font-size:1.14rem; font-weight:600; line-height:1.28; margin:.55rem 0 .3rem; letter-spacing:-.018em}
.card .sub{font-size:.83rem; color:var(--muted); line-height:1.45}
.card .note{margin-bottom:.2rem; font-size:.88rem; color:var(--ink-2); margin-top:.85rem;
  display:-webkit-box; -webkit-line-clamp:4; line-clamp:4; -webkit-box-orient:vertical; overflow:hidden}
.pills{list-style:none; display:flex; flex-wrap:wrap; gap:6px; padding:0; margin:.95rem 0 0}
.pills li{font-size:.71rem; padding:5px 10px; border-radius:99px; background:rgba(15,19,32,.05); color:var(--ink-2)}
.buys{display:flex; gap:9px; margin-top:auto; padding-top:.7rem; flex:none}
.buys .btn{--bh:44px; flex:1; padding:0 12px; font-size:.85rem}
/* Pothi leads, so it carries the solid weight; Amazon and Flipkart sit quieter beside it */
.buys .btn-pothi{color:#fff; background:linear-gradient(120deg,#1b2136,#2f3852); box-shadow:0 8px 18px -10px rgba(20,26,54,.9)}
.buys .btn-amz{background:var(--glass-2); border-color:var(--glass-line); box-shadow:var(--sh-1)}
.buys .btn[aria-disabled="true"]{opacity:.42; pointer-events:none}
.more{margin-top:.75rem; font-size:.8rem; color:var(--muted); background:none; border:0; padding:0; cursor:pointer; text-align:left; text-decoration:underline; text-underline-offset:3px}

.shelf-note{max-width:60ch; margin:clamp(30px,4vw,50px) auto 0; text-align:center; font-size:.82rem; color:var(--muted)}

/* ---------------------------------------------------------- watch */
.watch{padding:0 var(--pad) clamp(32px,4vw,58px)}
.watch-inner{
  max-width:var(--maxw); margin:0 auto; text-align:center;
  padding:clamp(28px,3.5vw,50px) clamp(22px,3vw,48px); border-radius:var(--r-xl);
  background:var(--glass); border:1px solid var(--glass-line); box-shadow:var(--sh-2);
  backdrop-filter:blur(18px) saturate(1.5); -webkit-backdrop-filter:blur(18px) saturate(1.5);
  position:relative; overflow:hidden;
}
.watch-inner::before{
  content:""; position:absolute; inset:-40% 30% auto; height:60%; filter:blur(70px); opacity:.35;
  background:conic-gradient(from 180deg,var(--iris-1),var(--iris-2),var(--iris-3),var(--iris-1));
}
.watch-inner > *{position:relative}
.watch .sec-sub{max-width:60ch; margin-inline:auto}
.watch-cta{display:flex; flex-wrap:wrap; gap:12px; justify-content:center; margin-top:2rem}

/* ---------------------------------------------------------- footer */
.foot{padding:clamp(26px,3vw,42px) var(--pad) 28px; border-top:1px solid var(--line); position:relative; z-index:1}
.foot-grid{max-width:var(--maxw); margin:0 auto; display:grid; grid-template-columns:2fr 1fr 1fr; gap:34px}
.foot h3{font-size:.72rem; letter-spacing:.16em; text-transform:uppercase; color:var(--muted); margin-bottom:.85rem; font-weight:600}
.foot-grid a{display:block; text-decoration:none; font-size:.9rem; color:var(--ink-2); padding:3px 0}
.foot-grid a:hover{color:var(--iris-2)}
.foot-note{margin-top:14px; font-size:.83rem; color:var(--muted); max-width:38ch}
.foot-legal{max-width:var(--maxw); margin:22px auto 0; padding-top:16px; border-top:1px solid var(--line); font-size:.76rem; color:var(--muted); display:flex; flex-wrap:wrap; gap:8px 18px}

/* ---------------------------------------------------------- dialog */
.sheet{
  width:min(1000px,94vw); max-height:90svh; padding:0; border:0; border-radius:var(--r-xl);
  background:rgba(255,255,255,.9); box-shadow:var(--sh-3); overflow:auto; color:var(--ink);
  backdrop-filter:blur(26px) saturate(1.6); -webkit-backdrop-filter:blur(26px) saturate(1.6);
}
.sheet::backdrop{background:rgba(16,20,34,.42); backdrop-filter:blur(6px)}
.sheet[open]{animation:sheetIn .42s cubic-bezier(.2,.8,.3,1)}
@keyframes sheetIn{from{opacity:0; transform:translateY(24px) scale(.98)}to{opacity:1; transform:none}}
.sheet-close{
  position:sticky; float:right; top:14px; right:14px; z-index:3; margin:14px 14px 0 0;
  width:40px; height:40px; border-radius:50%; border:1px solid var(--glass-line);
  background:var(--glass-2); font-size:1.4rem; line-height:1; cursor:pointer;
}
.sheet-body{display:grid; grid-template-columns:minmax(0,.9fr) minmax(0,1.1fr); gap:clamp(20px,3vw,46px); padding:clamp(24px,3.4vw,48px)}
.sheet-art{position:relative; display:flex; align-items:center; justify-content:center; min-height:300px}
.sheet-art img{max-height:min(52svh,520px); width:auto; filter:drop-shadow(0 34px 40px rgba(21,26,54,.32)); animation:floaty 7s ease-in-out infinite}
@keyframes floaty{0%,100%{transform:translateY(0) rotate(0)}50%{transform:translateY(-12px) rotate(-.8deg)}}
@media (prefers-reduced-motion:reduce){ .sheet-art img{animation:none} }
.sheet-art::after{content:""; position:absolute; inset:20% 8% 6%; z-index:-1; filter:blur(50px); opacity:.55;
  background:radial-gradient(ellipse at 50% 60%, var(--halo), transparent 70%)}
.sheet h3{font-family:var(--display); font-size:clamp(1.8rem,3.2vw,2.7rem); line-height:1.06; margin:.5rem 0 .6rem}
.sheet .sub{color:var(--muted); font-size:.98rem}
.sheet .note{margin-top:1.3rem; font-size:1rem; color:var(--ink-2)}
.sheet .meta{list-style:none; padding:0; margin:1.5rem 0 0; display:grid; grid-template-columns:repeat(auto-fit,minmax(120px,1fr)); gap:12px}
.sheet .meta li{padding:12px 14px; border-radius:var(--r-s); background:rgba(15,19,32,.04)}
.sheet .meta b{display:block; font-size:.68rem; letter-spacing:.13em; text-transform:uppercase; color:var(--muted); font-weight:600}
.sheet .meta span{font-size:.92rem}
.sheet .buys{padding-top:1.6rem}
.sheet .buys .btn{--bh:52px; font-size:.92rem}

/* ---------------------------------------------------------- responsive */
@media (max-width:1080px){
  /* stack it: copy, then the 3D shelf as its own band, then the montage */
  .hero{flex-direction:column; align-items:stretch; min-height:auto; padding-top:26px}
  .hero-copy{max-width:100%}
  .hero-inner{order:1}
  #stage{position:relative; inset:auto; order:2; height:min(27svh,232px); margin-top:8px}
  .hero-shade{display:none}
  /* the phone gets the 9:16 cut, so the frame has to be 9:16 too */
  /* `translate` is a transform: it survives position:static, so the desktop
     -58% nudge kept dragging the montage up over the 3D shelf and left an equal
     dead band below it. Cancel the offset, not just the positioning. */
  .inset{position:static; order:3; width:100%; max-width:300px; margin:14px auto 0;
         top:auto; translate:none}
  .inset-frame{aspect-ratio:9/16; transform:none}
  .inset:hover .inset-frame{transform:none}
  .scroll-cue{display:none}
  .author-grid{grid-template-columns:1fr; gap:36px}
  .author-portrait{max-width:400px}
  .foot-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:760px){
  .nav-links{
    position:fixed; inset:64px 12px auto; flex-direction:column; gap:4px; padding:16px;
    border-radius:var(--r-m); background:rgba(255,255,255,.94); box-shadow:var(--sh-2);
    backdrop-filter:blur(18px); -webkit-backdrop-filter:blur(18px);
    transform:translateY(-12px); opacity:0; visibility:hidden; transition:.3s;
  }
  .nav-links.open{transform:none; opacity:1; visibility:visible}
  .nav-links a{padding:11px 8px; font-size:1rem}
  .nav-cta{display:none}
  .nav-burger{display:flex; margin-left:auto}
  .hero{min-height:auto; padding-top:34px}
  #stage{opacity:.85}
  .stats{grid-template-columns:repeat(2,1fr); gap:18px}
  .grid{grid-template-columns:1fr; max-width:440px}
  .sheet-body{grid-template-columns:1fr; padding:20px}
  .sheet-art{min-height:auto}
  .sheet-art img{max-height:42svh}
  .foot-grid{grid-template-columns:1fr; gap:26px}
  .buys{flex-direction:column}
}
@media (max-width:420px){
  .hero h1{font-size:2.6rem}
  .card{padding:20px 18px 20px}
}

/* ---------------------------------------------------------- read-a-sample */
.btn-read{
  --bh:44px; width:100%; margin-top:auto; font-size:.86rem;
  background:linear-gradient(120deg, rgba(34,193,232,.14), rgba(124,108,255,.16));
  border-color:rgba(124,108,255,.28); color:var(--ink);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.7);
}
.btn-read:hover{
  background:linear-gradient(120deg, rgba(34,193,232,.24), rgba(124,108,255,.26));
  border-color:rgba(124,108,255,.45);
}
.btn-read span{font-size:.9em; opacity:.6}
.btn-read-lg{--bh:52px; font-size:.94rem; margin-top:1.6rem}

/* ---------------------------------------------------------- flipkart + availability */
.buys .btn-flip{
  background:linear-gradient(120deg,#f7f9ff,#eef3ff); border-color:rgba(40,116,240,.30);
  color:#1b3a7a; box-shadow:var(--sh-1);
}
.buys .btn-flip:hover{background:linear-gradient(120deg,#eef3ff,#e2ebff); border-color:rgba(40,116,240,.5)}
.avail{
  margin-top:.7rem; font-size:.72rem; line-height:1.45; color:var(--muted); text-align:center;
}
@media (max-width:760px){ .avail{text-align:left} }


/* ---------------------------------------------------------- buy cue
   The buy buttons sit below the fold on a phone, so the hero has to say plainly
   that they are down there — and keep saying it until the reader moves. */
.buy-cue{
  display:inline-flex; align-items:center; gap:.7em; margin-top:1rem;
  padding:14px 26px 14px 24px; border-radius:99px; text-decoration:none;
  font-size:.95rem; font-weight:600; color:#fff;
  background:linear-gradient(120deg,#1b2136,#39406a);
  box-shadow:0 14px 30px -14px rgba(20,26,54,.95), 0 0 0 0 rgba(124,108,255,.55);
  animation:cuePulse 2.4s ease-in-out infinite;
}
.buy-cue:hover{transform:translateY(-2px)}
.buy-cue .arw{
  font-size:1.25em; line-height:1; display:inline-block;
  animation:cueBob 1.5s ease-in-out infinite;
}
@keyframes cuePulse{
  0%,100%{box-shadow:0 14px 30px -14px rgba(20,26,54,.95), 0 0 0 0 rgba(124,108,255,.55)}
  50%    {box-shadow:0 14px 30px -14px rgba(20,26,54,.95), 0 0 0 14px rgba(124,108,255,0)}
}
@keyframes cueBob{0%,100%{transform:translateY(0)}50%{transform:translateY(5px)}}
@media (prefers-reduced-motion:reduce){
  .buy-cue,.buy-cue .arw{animation:none}
}

/* the worldwide button reads as the quieter, secondary route */
.buys .btn-world{
  background:var(--glass); border-color:var(--glass-line); color:var(--ink-2);
  box-shadow:var(--sh-1); font-size:.82rem;
}
.buys .btn-world:hover{background:var(--glass-2)}
/* four labelled buttons never fit side by side — stack them at every size */
.buys{flex-direction:column}
.buys .btn{width:100%; padding:0 16px; font-size:.86rem}

/* ---------------------------------------------------------- floating buy
   The nav CTA is hidden on phones and the buy buttons sit far down the page, so a
   follower keeps the purchase one tap away at any scroll position. It hides itself
   once the shelf is on screen — there it would only be noise. */
.float-buy{
  position:fixed; z-index:38; right:clamp(14px,2.4vw,30px);
  bottom:calc(clamp(14px,2.4vw,26px) + env(safe-area-inset-bottom,0px));
  display:inline-flex; align-items:center; justify-content:center; gap:.6em;
  height:52px; padding:0 26px; border-radius:99px; text-decoration:none;
  font-size:.94rem; font-weight:600; color:#fff;
  background:linear-gradient(120deg,#1b2136,#39406a);
  box-shadow:0 18px 38px -16px rgba(20,26,54,.95);
  opacity:0; transform:translateY(14px) scale(.97); pointer-events:none;
  transition:opacity .35s cubic-bezier(.2,.8,.3,1), transform .35s cubic-bezier(.2,.8,.3,1);
}
.float-buy.show{opacity:1; transform:none; pointer-events:auto}
.float-buy:hover{background:linear-gradient(120deg,#232a45,#454d7c)}
.float-buy .fb-ico{font-size:.75em; line-height:1; animation:fbBob 1.6s ease-in-out infinite}
@keyframes fbBob{0%,100%{transform:translateY(0)}50%{transform:translateY(3px)}}
@media (prefers-reduced-motion:reduce){ .float-buy .fb-ico{animation:none} }
@media (max-width:760px){ .float-buy{left:16px; right:16px} }

/* ---------------------------------------------------------- trust strip
   A cold visitor asks two things: how much, and has anyone read these. Every number
   here is verifiable — 21 titles in the catalogue, the 10-page samples we publish,
   the channel's real subscriber count, and the lowest live Pothi price. No invented
   reviews: the books genuinely have none yet, and a faked one would be worse than none. */
.trust{
  list-style:none; display:flex; flex-wrap:wrap; gap:10px; padding:0; margin:1.5rem 0 0;
}
.trust li{
  flex:1 1 108px; min-width:108px; padding:12px 14px; border-radius:var(--r-s);
  background:var(--glass); border:1px solid var(--glass-line); box-shadow:var(--sh-1);
  backdrop-filter:blur(14px) saturate(1.5); -webkit-backdrop-filter:blur(14px) saturate(1.5);
}
.trust b{
  display:block; font-family:var(--display); font-size:1.7rem; line-height:1;
  background:linear-gradient(120deg,var(--iris-2),var(--iris-1));
  -webkit-background-clip:text; background-clip:text; color:transparent;
}
.trust span{display:block; margin-top:4px; font-size:.7rem; line-height:1.3; color:var(--muted)}

/* the drag hint belongs with the shelf, low and out of the copy's way */
.shelf-hint{
  position:absolute; left:50%; bottom:10px; translate:-50% 0; z-index:3; margin:0;
  font-size:.68rem; letter-spacing:.16em; text-transform:uppercase; color:var(--muted);
  opacity:.75; pointer-events:none; white-space:nowrap;
}
@media (max-width:1080px){ .shelf-hint{display:none} }