/* ============================================================
   harris-books — enhancement layer
   Adds: shelf, sort, format preference, new-release rail,
   doorways, reading-order badges, inline peek, KU panel,
   share kit, sticky bar. Uses the existing design tokens only.
   Everything here is additive; nothing overrides the base sheet.
   ============================================================ */

:root{
  --x-glow:rgba(201,146,46,.10);
  --x-shadow:0 18px 44px -22px rgba(0,0,0,.85);
}

/* paper grain over the whole page ------------------------------ */
body::after{
  content:"";position:fixed;inset:0;z-index:60;pointer-events:none;opacity:.035;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='220' height='220'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.82' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  mix-blend-mode:overlay;
}
@media (prefers-reduced-motion:reduce){body::after{display:none}}

/* ── shelf button in the top bar ──────────────────────────────── */
.x-shelfbtn{
  display:inline-flex;align-items:center;gap:.45rem;background:none;
  border:1px solid var(--line2);color:var(--paper2);border-radius:var(--r);
  padding:.42rem .72rem;font-size:.9rem;min-height:2.4rem;cursor:pointer;
  font-family:var(--serif);white-space:nowrap;
}
.x-shelfbtn:hover{border-color:var(--amber);color:var(--amber2)}
.x-shelfbtn svg{width:.95em;height:.95em;flex:none}
.x-shelfbtn b{
  font-family:var(--display);font-size:.82rem;background:var(--amber);color:#191309;
  border-radius:999px;min-width:1.35rem;padding:0 .35rem;text-align:center;line-height:1.35rem;
}
.x-shelfbtn[data-n="0"] b{display:none}
@media (max-width:819px){
  .x-shelfbtn{order:2}
  .bar .menu-btn{order:3}
}
/* keep brand + list + menu on one line on a phone */
@media (max-width:560px){
  .x-shelfbtn{padding:.42rem .55rem;gap:.3rem}
  .x-shelfbtn span{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
  .x-shelfbtn svg{width:1.05rem;height:1.05rem}
  .brand-sub{display:none}
}

/* ── shelf drawer ─────────────────────────────────────────────── */
.x-drawer{
  position:fixed;inset:0;z-index:70;display:none;
}
.x-drawer.is-open{display:block}
.x-drawer-veil{position:absolute;inset:0;background:rgba(9,7,5,.72);backdrop-filter:blur(3px)}
.x-drawer-panel{
  position:absolute;top:0;right:0;bottom:0;width:min(27rem,100%);
  background:var(--ink2);border-left:1px solid var(--line);
  display:flex;flex-direction:column;box-shadow:var(--x-shadow);
  animation:x-slide .22s ease-out;
}
@keyframes x-slide{from{transform:translateX(1.5rem);opacity:.4}to{transform:none;opacity:1}}
@media (prefers-reduced-motion:reduce){.x-drawer-panel{animation:none}}
.x-drawer-head{
  display:flex;align-items:baseline;gap:.75rem;padding:1rem 1.15rem .85rem;
  border-bottom:1px solid var(--line);
}
.x-drawer-head h2{font-size:1.28rem;margin:0}
.x-drawer-head .x-sub{font-size:.86rem;color:var(--paper3);margin-left:auto}
.x-drawer-close{
  background:none;border:1px solid var(--line2);color:var(--paper2);border-radius:var(--r);
  padding:.28rem .6rem;font-size:.9rem;cursor:pointer;line-height:1.4;
}
.x-drawer-close:hover{border-color:var(--amber);color:var(--amber2)}
.x-drawer-body{overflow-y:auto;flex:1;padding:.6rem 1.15rem 1rem;-webkit-overflow-scrolling:touch}
.x-drawer-foot{border-top:1px solid var(--line);padding:.9rem 1.15rem 1.15rem;background:var(--ink3)}

.x-shelf-item{display:grid;grid-template-columns:3.1rem 1fr auto;gap:.75rem;
  align-items:start;padding:.8rem 0;border-bottom:1px solid var(--line)}
.x-shelf-item:last-child{border-bottom:0}
.x-shelf-item img{width:3.1rem;border:1px solid var(--line2);border-radius:2px}
.x-shelf-item h3{font-size:1rem;line-height:1.25;margin:0 0 .2rem}
.x-shelf-item h3 a{color:var(--paper);text-decoration:none}
.x-shelf-item h3 a:hover{color:var(--amber2)}
.x-shelf-item p{margin:0;font-size:.85rem;color:var(--paper3);line-height:1.4}
.x-shelf-item .x-drop{
  background:none;border:0;color:var(--paper3);cursor:pointer;font-size:1.15rem;
  line-height:1;padding:.15rem .3rem;border-radius:2px;
}
.x-shelf-item .x-drop:hover{color:var(--amber2)}
.x-shelf-empty{padding:2rem .2rem;color:var(--paper2);font-size:.98rem}
.x-shelf-empty b{display:block;font-family:var(--display);color:var(--paper);
  font-size:1.15rem;margin-bottom:.35rem}

.x-total{display:flex;justify-content:space-between;align-items:baseline;
  font-size:.92rem;color:var(--paper2);margin-bottom:.75rem}
.x-total b{font-family:var(--display);color:var(--paper);font-size:1.2rem}
.x-drawer-foot .x-acts{display:flex;flex-wrap:wrap;gap:.5rem}
.x-mini{
  background:none;border:1px solid var(--line2);color:var(--paper2);border-radius:var(--r);
  padding:.45rem .75rem;font-size:.88rem;cursor:pointer;font-family:var(--serif);
}
.x-mini:hover{border-color:var(--amber);color:var(--amber2)}
.x-mini.is-primary{background:var(--amber);border-color:var(--amber);color:#191309;font-weight:600}
.x-mini.is-primary:hover{background:var(--amber2);color:#191309}

/* ── save button on cards ─────────────────────────────────────── */
.x-save{
  position:absolute;top:.5rem;right:.5rem;z-index:3;
  width:2.1rem;height:2.1rem;display:grid;place-items:center;
  background:rgba(23,18,14,.82);border:1px solid var(--line2);border-radius:999px;
  color:var(--paper2);cursor:pointer;backdrop-filter:blur(4px);padding:0;
}
.x-save:hover{border-color:var(--amber);color:var(--amber2)}
.x-save svg{width:1rem;height:1rem}
.x-save[aria-pressed="true"]{color:var(--amber2);border-color:var(--amber)}
.x-save[aria-pressed="true"] svg{fill:currentColor}
.rec{position:relative}

/* ── tools bar additions ──────────────────────────────────────── */
.x-tools{display:flex;flex-wrap:wrap;gap:.9rem 1.4rem;align-items:center;
  margin:.15rem 0 .1rem;font-size:.92rem;color:var(--paper2)}
.x-tools label{display:inline-flex;align-items:center;gap:.45rem}
.x-tools select{
  font-family:var(--serif);font-size:.92rem;color:var(--paper);
  background:var(--ink3);border:1px solid var(--line2);border-radius:var(--r);
  padding:.35rem 1.6rem .35rem .55rem;min-height:2.2rem;cursor:pointer;
  appearance:none;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' fill='none' stroke='%23BCB09A' stroke-width='1.5'/%3E%3C/svg%3E");
  background-repeat:no-repeat;background-position:right .5rem center;background-size:.7rem;
}
.x-tools select:hover{border-color:var(--amber)}
.x-hint{color:var(--paper3);font-size:.85rem}
.x-hint kbd{font-family:var(--serif);border:1px solid var(--line2);border-radius:2px;
  padding:0 .3rem;font-size:.9em;color:var(--paper2)}
@media (max-width:640px){.x-hint{display:none}}

/* format preference dims the formats you are not shopping for */
.grid[data-fmt="kindle"] .buy:not(.buy-kindle):not(.buy-soon),
.grid[data-fmt="paperback"] .buy:not(.buy-paperback):not(.buy-soon),
.grid[data-fmt="hardcover"] .buy:not(.buy-hardcover):not(.buy-soon){opacity:.42}
.grid[data-fmt="kindle"] .buy-kindle,
.grid[data-fmt="paperback"] .buy-paperback,
.grid[data-fmt="hardcover"] .buy-hardcover{box-shadow:0 0 0 1px var(--amber-dim)}

/* ── new-release rail ─────────────────────────────────────────── */
.x-rail{border-block:1px solid var(--line);background:var(--ink2);padding:1.6rem 0 1.7rem}
.x-rail-head{display:flex;align-items:baseline;gap:.9rem;flex-wrap:wrap;margin-bottom:.95rem}
.x-rail-head h2{font-size:clamp(1.3rem,1.1rem + .8vw,1.7rem)}
.x-rail-head p{margin:0;color:var(--paper3);font-size:.92rem}
.x-rail-scroll{
  display:grid;grid-auto-flow:column;grid-auto-columns:minmax(8.2rem,8.2rem);
  gap:.9rem;overflow-x:auto;padding-bottom:.7rem;scroll-snap-type:x proximity;
  scrollbar-width:thin;scrollbar-color:var(--line2) transparent;
}
.x-rail-scroll::-webkit-scrollbar{height:6px}
.x-rail-scroll::-webkit-scrollbar-thumb{background:var(--line2);border-radius:3px}
.x-rail-item{scroll-snap-align:start;text-decoration:none;display:block}
.x-rail-item img{
  width:100%;border:1px solid var(--line2);border-radius:2px;
  box-shadow:var(--x-shadow);transition:transform .18s ease,border-color .18s ease;
}
.x-rail-item:hover img{transform:translateY(-3px);border-color:var(--amber)}
.x-rail-item b{display:block;font-family:var(--display);font-size:.86rem;line-height:1.25;
  color:var(--paper);margin-top:.5rem;font-weight:700}
.x-rail-item span{display:block;font-size:.8rem;color:var(--paper3);margin-top:.15rem}

/* ── doorways ─────────────────────────────────────────────────── */
.x-doors{padding:2.2rem 0 .4rem}
.x-doors .h2{margin-bottom:.35rem}
.x-door-grid{display:grid;gap:.75rem;margin-top:1.15rem;
  grid-template-columns:repeat(auto-fit,minmax(15rem,1fr))}
.x-door{
  text-align:left;background:var(--ink2);border:1px solid var(--line);
  border-radius:var(--r);padding:.95rem 1rem 1rem;cursor:pointer;
  color:var(--paper2);font-family:var(--serif);transition:border-color .16s,background .16s;
}
.x-door:hover{border-color:var(--amber);background:var(--ink3)}
.x-door b{display:block;font-family:var(--display);color:var(--paper);
  font-size:1.03rem;line-height:1.25;margin-bottom:.3rem}
.x-door span{display:block;font-size:.9rem;line-height:1.45;color:var(--paper3)}
.x-door em{display:block;font-style:normal;font-size:.82rem;color:var(--amber2);margin-top:.5rem}

/* ── reading-order badge ──────────────────────────────────────── */
.x-order{
  display:inline-block;font-family:var(--display);font-size:.76rem;font-weight:700;
  letter-spacing:.06em;text-transform:uppercase;color:var(--amber2);
  border:1px solid var(--amber-dim);border-radius:999px;padding:.1rem .55rem;
  margin-left:.4rem;vertical-align:.08em;
}
.x-order.is-start{background:var(--amber);border-color:var(--amber);color:#191309}

/* ── inline peek ──────────────────────────────────────────────── */
.x-peek{
  background:none;border:0;padding:0;margin:0 0 0 .9rem;cursor:pointer;
  color:var(--amber2);font-family:var(--serif);font-size:inherit;
  text-decoration:underline;text-decoration-color:var(--amber-dim);text-underline-offset:.18em;
}
.x-peek:hover{text-decoration-color:var(--amber2)}
.x-peek-body{
  margin:.7rem 0 0;padding:.75rem .9rem;border-left:2px solid var(--amber-dim);
  background:var(--ink3);border-radius:0 var(--r) var(--r) 0;
}
.x-peek-body p{margin:0 0 .6rem;font-size:.95rem;line-height:1.55;color:var(--paper2)}
.x-peek-body p:last-child{margin-bottom:0}
.x-peek-body .x-ku{color:var(--amber2);font-size:.88rem}

/* ── Kindle Unlimited panel ───────────────────────────────────── */
.x-ku-panel{padding:2.4rem 0}
.x-ku-in{
  border:1px solid var(--line);border-radius:var(--r);background:
    radial-gradient(90% 120% at 0% 0%,var(--x-glow),transparent 62%),var(--ink2);
  padding:clamp(1.25rem,3vw,2rem);display:grid;gap:1.6rem;
}
@media (min-width:860px){.x-ku-in{grid-template-columns:1.15fr .85fr;gap:2.4rem}}
.x-ku-in h2{font-size:clamp(1.4rem,1.1rem + 1.1vw,2rem);margin-bottom:.5rem}
.x-ku-in p{color:var(--paper2);margin-bottom:.9rem}
.x-steps{list-style:none;margin:0;padding:0;counter-reset:s}
.x-steps li{
  counter-increment:s;position:relative;padding-left:2.15rem;margin-bottom:.85rem;
  font-size:.98rem;line-height:1.5;color:var(--paper2);
}
.x-steps li::before{
  content:counter(s);position:absolute;left:0;top:.05rem;
  width:1.55rem;height:1.55rem;display:grid;place-items:center;
  border:1px solid var(--amber-dim);border-radius:999px;
  font-family:var(--display);font-size:.85rem;color:var(--amber2);
}
.x-ku-side{border:1px solid var(--line);border-radius:var(--r);
  background:var(--ink3);padding:1.1rem 1.15rem 1.2rem;align-self:start}
.x-ku-side h3{font-size:1.08rem;margin-bottom:.55rem}
.x-ku-side ul{margin:0 0 1rem;padding-left:1.1rem;color:var(--paper2);font-size:.94rem}
.x-ku-side li{margin-bottom:.35rem}
.x-ku-stat{display:flex;gap:1.4rem;margin-bottom:1rem}
.x-ku-stat div b{display:block;font-family:var(--display);font-size:1.65rem;color:var(--paper);line-height:1}
.x-ku-stat div span{display:block;font-size:.82rem;color:var(--paper3);letter-spacing:.03em;margin-top:.15rem}

/* ── share kit ────────────────────────────────────────────────── */
.x-share{padding:2.4rem 0 2.8rem;border-top:1px solid var(--line)}
.x-share .lede{margin-bottom:1.25rem}
.x-share-grid{display:grid;gap:.9rem;grid-template-columns:repeat(auto-fit,minmax(18rem,1fr))}
.x-post{
  position:relative;border:1px solid var(--line);border-radius:var(--r);
  background:var(--ink2);padding:1rem 1rem 3.3rem;
}
.x-post p{
  margin:0;white-space:pre-wrap;font-size:.94rem;line-height:1.52;color:var(--paper2);
}
.x-post .x-tag{
  display:inline-block;font-size:.74rem;letter-spacing:.12em;text-transform:uppercase;
  color:var(--paper3);border:1px solid var(--line2);border-radius:999px;
  padding:.08rem .5rem;margin-bottom:.7rem;
}
.x-post-acts{position:absolute;left:1rem;right:1rem;bottom:.9rem;display:flex;gap:.5rem}

/* ── sticky bar ───────────────────────────────────────────────── */
.x-bar{
  position:fixed;left:50%;transform:translateX(-50%);bottom:.85rem;z-index:50;
  width:min(46rem,calc(100% - 1.4rem));
  display:flex;align-items:center;gap:.75rem;
  background:rgba(30,25,20,.94);backdrop-filter:blur(10px);
  border:1px solid var(--line2);border-radius:999px;
  padding:.5rem .55rem .5rem 1rem;box-shadow:var(--x-shadow);
  animation:x-rise .3s ease-out both .5s;
}
@keyframes x-rise{from{transform:translate(-50%,1.2rem);opacity:0}to{transform:translate(-50%,0);opacity:1}}
@media (prefers-reduced-motion:reduce){.x-bar{animation:none}}
.x-bar-txt{font-size:.92rem;line-height:1.3;min-width:0;flex:1}
.x-bar-txt b{color:var(--paper);font-weight:600}
.x-bar-txt span{color:var(--paper3)}
@media (max-width:560px){.x-bar-txt span{display:none}}
.x-bar .btn{white-space:nowrap;padding:.42rem .9rem;font-size:.9rem;min-height:2.2rem}
.x-bar-x{
  background:none;border:0;color:var(--paper3);cursor:pointer;font-size:1.2rem;
  line-height:1;padding:.2rem .45rem;border-radius:999px;flex:none;
}
.x-bar-x:hover{color:var(--amber2)}
body.x-has-bar{padding-bottom:4.2rem}

/* ── toast ────────────────────────────────────────────────────── */
.x-toast{
  position:fixed;left:50%;bottom:5.4rem;transform:translateX(-50%);z-index:80;
  background:var(--amber);color:#191309;font-weight:600;font-size:.92rem;
  padding:.55rem 1.05rem;border-radius:999px;box-shadow:var(--x-shadow);
  opacity:0;transition:opacity .18s ease;pointer-events:none;
}
.x-toast.is-on{opacity:1}

/* ── book-page save row ───────────────────────────────────────── */
.x-bk-save{display:flex;flex-wrap:wrap;gap:.5rem;margin-top:.9rem}