/* ============================================================
   Erick Michael — store & library components (extends style.css)
   Palette tokens come from style.css (:root): --ink --green --gold
   --paper --line --muted --serif --sans
   ============================================================ */

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;gap:9px;font-family:var(--sans);font-weight:800;
  font-size:15px;padding:14px 22px;border-radius:13px;border:1px solid transparent;cursor:pointer;
  transition:transform .16s ease, box-shadow .16s ease, background .16s ease;text-align:center;justify-content:center}
.btn:active{transform:translateY(1px)}
.btn-primary{background:var(--green);color:#052a1e}
.btn-primary:hover{box-shadow:0 12px 26px rgba(24,180,127,.32);transform:translateY(-1px)}
.btn-gold{background:var(--gold);color:#2a1f04}
.btn-gold:hover{box-shadow:0 12px 26px rgba(210,170,82,.32);transform:translateY(-1px)}
.btn-ink{background:var(--ink);color:#fff}
.btn-ink:hover{transform:translateY(-1px)}
.btn-ghost{background:transparent;border-color:var(--line);color:var(--ink)}
.btn-ghost:hover{border-color:var(--ink)}
.btn-block{width:100%}
.btn-lg{font-size:17px;padding:17px 26px}

/* ---------- header actions / mobile nav ---------- */
.nav-actions{display:flex;align-items:center;gap:14px}
.icon-btn{width:40px;height:40px;border-radius:11px;border:1px solid var(--line);background:#fff;
  display:grid;place-items:center;cursor:pointer;color:var(--ink)}
.icon-btn:hover{border-color:var(--ink)}
.cart-count{font-size:11px;font-weight:800;background:var(--green);color:#052a1e;border-radius:999px;
  padding:1px 6px;margin-left:-6px;margin-top:-14px}
.nav-cta{background:var(--green);color:#052a1e;padding:10px 16px;border-radius:11px;font-weight:800;font-size:14px}
.menu-toggle{display:none;width:42px;height:42px;border-radius:11px;border:1px solid var(--line);background:#fff;
  font-size:20px;cursor:pointer}
@media(max-width:860px){
  .nav nav{position:fixed;inset:72px 0 auto 0;background:#fff;border-bottom:1px solid var(--line);
    flex-direction:column;gap:0;padding:8px 0;transform:translateY(-140%);transition:transform .25s ease;z-index:40}
  .nav nav.open{transform:none;box-shadow:0 24px 40px rgba(9,20,32,.12)}
  .nav nav a{padding:14px 22px;width:100%;border-bottom:1px solid var(--line)}
  .menu-toggle{display:grid;place-items:center}
  .nav-cta{display:none}
}

/* ---------- search overlay ---------- */
.search-overlay{position:fixed;inset:0;background:rgba(9,20,32,.6);backdrop-filter:blur(4px);
  z-index:120;display:none;padding:80px 18px}
.search-overlay.open{display:block}
.search-panel{width:min(680px,100%);margin:auto;background:#fff;border-radius:20px;overflow:hidden;box-shadow:0 40px 80px rgba(0,0,0,.35)}
.search-panel input{width:100%;border:0;padding:22px 24px;font-size:20px;font-family:var(--serif);outline:none;border-bottom:1px solid var(--line)}
.search-results{max-height:52vh;overflow:auto}
.search-results a{display:block;padding:15px 24px;border-bottom:1px solid var(--line)}
.search-results a:hover{background:var(--paper)}
.search-results .k{font-size:10px;letter-spacing:.14em;font-weight:800;color:var(--green)}
.search-results h4{margin:3px 0;font-family:var(--serif);font-size:19px}
.search-results p{margin:0;font-size:13px;color:var(--muted)}
.search-empty{padding:24px;color:var(--muted);font-size:14px}

/* ---------- homepage featured book ---------- */
.featured{background:var(--paper);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.featured .wrap2{display:grid;grid-template-columns:300px 1fr;gap:56px;align-items:center;padding:70px 0}
.kick{font-family:var(--sans);font-size:11px;letter-spacing:.18em;font-weight:800;color:var(--green)}
.featured h2{font-family:var(--serif);font-size:clamp(30px,4vw,46px);line-height:1.06;margin:10px 0 8px;letter-spacing:-.02em}
.featured .sub{color:var(--muted);font-size:17px;margin:0 0 16px}
.featured .price{font-family:var(--sans);font-weight:800;font-size:22px;margin:6px 0 18px}
.featured .cta-row{display:flex;gap:12px;flex-wrap:wrap}

/* ---------- 3D book cover ---------- */
.cover3d{perspective:1600px}
.cover3d .stack{position:relative;transform:rotateY(-22deg) rotateX(4deg);transform-style:preserve-3d;
  transition:transform .5s ease;border-radius:4px 8px 8px 4px}
.cover3d:hover .stack{transform:rotateY(-11deg) rotateX(2deg)}
.cover3d img{display:block;width:100%;border-radius:4px 8px 8px 4px;
  box-shadow:26px 30px 60px rgba(9,20,32,.35);position:relative;z-index:2}
.cover3d .stack::before{content:"";position:absolute;top:1.5%;left:0;height:97%;width:20px;transform:translateX(-19px) rotateY(90deg);transform-origin:right;
  background:linear-gradient(90deg,#c9c3b6,#efe7d9);border-radius:2px}
.cover-flat img{width:100%;border-radius:8px;box-shadow:0 22px 44px rgba(9,20,32,.22);display:block}

/* ---------- book grid / cards ---------- */
.book-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:28px;padding:20px 0 10px}
.book-card{background:#fff;border:1px solid var(--line);border-radius:20px;overflow:hidden;display:flex;flex-direction:column;
  transition:transform .2s ease,box-shadow .2s ease}
.book-card:hover{transform:translateY(-4px);box-shadow:0 22px 44px rgba(9,20,32,.14)}
.book-card .thumb{background:var(--paper);padding:26px 26px 0;overflow:hidden}
.book-card .thumb img{width:100%;border-radius:4px 7px 7px 4px;box-shadow:0 16px 30px rgba(9,20,32,.24);
  transition:transform .35s ease;display:block}
.book-card:hover .thumb img{transform:translateY(-6px) scale(1.02)}
.book-card .body{padding:20px 22px 24px;display:flex;flex-direction:column;gap:8px;flex:1}
.book-card .body h3{font-family:var(--serif);font-size:22px;line-height:1.14;margin:0}
.book-card .body p{margin:0;color:var(--muted);font-size:14px;flex:1}
.book-card .fmts{display:flex;gap:6px;flex-wrap:wrap}
.book-card .fmts span{font-size:11px;font-weight:700;color:var(--ink);background:var(--paper);border:1px solid var(--line);border-radius:999px;padding:4px 10px}
.book-card .row{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-top:6px}
.book-card .price{font-family:var(--sans);font-weight:800}
.book-card .btns{display:grid;grid-template-columns:1fr 1fr;gap:9px;margin-top:6px}

/* ---------- book detail ---------- */
.detail{padding:64px 0 40px}
.detail-hero{display:grid;grid-template-columns:360px 1fr;gap:64px;align-items:start}
.detail-hero .eyebrow2{color:var(--green);font-weight:800;letter-spacing:.16em;font-size:11px}
.detail-hero h1{font-family:var(--serif);font-size:clamp(34px,4.4vw,52px);line-height:1.02;letter-spacing:-.03em;margin:12px 0 6px}
.detail-hero .byauthor{color:var(--muted);font-size:16px;margin:0 0 14px}
.detail-hero .tag{font-family:var(--serif);font-style:italic;font-size:20px;color:var(--ink);margin:0 0 22px}
.meta-list{display:grid;grid-template-columns:repeat(2,auto);gap:8px 34px;margin:18px 0 26px;font-size:14px}
.meta-list div{display:flex;flex-direction:column}
.meta-list b{font-size:11px;letter-spacing:.12em;color:var(--muted);font-weight:800;text-transform:uppercase}
.gallery{display:flex;gap:10px;margin-top:16px}
.gallery img{width:70px;border-radius:5px;box-shadow:0 8px 18px rgba(9,20,32,.2);cursor:pointer}

/* format selector */
.format-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin:8px 0 20px}
.format-card{border:1.5px solid var(--line);border-radius:15px;padding:15px 14px;cursor:pointer;background:#fff;transition:border-color .15s,box-shadow .15s}
.format-card:hover{border-color:var(--ink)}
.format-card.active{border-color:var(--green);box-shadow:0 0 0 3px rgba(24,180,127,.16)}
.format-card b{display:block;font-size:15px}
.format-card span{display:block;font-size:12px;color:var(--muted);margin-top:3px}

/* purchase panel */
.buy-panel{background:var(--paper);border:1px solid var(--line);border-radius:22px;padding:26px}
.buy-panel .price-lg{font-family:var(--sans);font-weight:800;font-size:34px;margin:2px 0 4px}
.buy-panel .price-note{font-size:13px;color:var(--muted);margin:0 0 16px}
.trust-row{display:flex;gap:18px;flex-wrap:wrap;margin-top:16px;font-size:12px;color:var(--muted)}
.trust-row span{display:inline-flex;gap:6px;align-items:center}

/* sticky mobile buy bar */
.sticky-buy{position:fixed;left:0;right:0;bottom:0;z-index:80;background:#fff;border-top:1px solid var(--line);
  display:none;align-items:center;justify-content:space-between;gap:12px;padding:11px 16px;box-shadow:0 -10px 30px rgba(9,20,32,.1)}
.sticky-buy .p{font-family:var(--sans);font-weight:800;font-size:18px}
.sticky-buy .btn{padding:13px 20px}

/* ---------- modal ---------- */
.modal{position:fixed;inset:0;background:rgba(9,20,32,.62);backdrop-filter:blur(4px);z-index:130;display:none;padding:22px}
.modal.open{display:grid;place-items:center}
.modal-card{background:#fff;border-radius:22px;max-width:520px;width:100%;padding:30px;box-shadow:0 40px 90px rgba(0,0,0,.4);max-height:90vh;overflow:auto}
.modal-card h3{font-family:var(--serif);font-size:26px;margin:0 0 6px}
.modal-card p.sm{color:var(--muted);font-size:14px;margin:0 0 18px}
.modal-card label{display:block;font-size:13px;font-weight:700;margin:12px 0 5px}
.modal-card input{width:100%;padding:12px 14px;border:1px solid var(--line);border-radius:11px;font-size:15px;font-family:var(--sans)}
.modal-x{float:right;border:0;background:none;font-size:24px;cursor:pointer;color:var(--muted);line-height:1}
.reader-frame{width:100%;height:70vh;border:1px solid var(--line);border-radius:12px}

/* ---------- floating book CTA (articles) ---------- */
.floating-cta{position:fixed;right:20px;bottom:20px;z-index:70;max-width:320px;background:#fff;border:1px solid var(--line);
  border-radius:18px;box-shadow:0 24px 50px rgba(9,20,32,.22);padding:16px 16px 16px 16px;display:none;gap:12px;align-items:center}
.floating-cta.show{display:flex;animation:ctaIn .4s ease}
@keyframes ctaIn{from{opacity:0;transform:translateY(14px)}to{opacity:1;transform:none}}
.floating-cta img{width:52px;border-radius:3px 5px 5px 3px;box-shadow:0 8px 16px rgba(0,0,0,.25)}
.floating-cta .t{font-size:13px;line-height:1.3}
.floating-cta .t b{display:block;font-family:var(--serif);font-size:15px;margin-bottom:4px}
.floating-cta a.mini{display:inline-block;margin-top:6px;font-weight:800;color:var(--green);font-size:13px}
.floating-cta .close{position:absolute;top:6px;right:9px;border:0;background:none;font-size:17px;color:var(--muted);cursor:pointer}
.floating-cta{position:fixed}

/* ---------- share bar ---------- */
.share-bar{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin:30px 0;padding:16px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.share-bar b{font-size:12px;letter-spacing:.14em;color:var(--muted);font-weight:800;margin-right:4px}
.share-bar a,.share-bar button{border:1px solid var(--line);background:#fff;border-radius:10px;padding:9px 13px;font-size:13px;font-weight:700;cursor:pointer;color:var(--ink)}
.share-bar a:hover,.share-bar button:hover{border-color:var(--ink)}

/* ---------- conversion block (upgraded book-cta) ---------- */
.convert{display:grid;grid-template-columns:190px 1fr;gap:34px;align-items:center;margin:64px 0;
  background:var(--ink);color:#fff;border-radius:26px;padding:36px}
.convert img{width:100%;border-radius:4px 8px 8px 4px;box-shadow:0 22px 44px rgba(0,0,0,.4)}
.convert .k{color:var(--gold)}
.convert h3{font-family:var(--serif);font-size:30px;line-height:1.12;margin:6px 0 8px}
.convert p{color:#c6d4dc;font-size:16px;margin:0 0 18px}
.convert .cta-row{display:flex;gap:12px;flex-wrap:wrap}

/* ---------- order success ---------- */
.success{max-width:640px;margin:0 auto;padding:90px 0;text-align:center}
.success .check{width:76px;height:76px;border-radius:50%;background:var(--green);color:#052a1e;display:grid;place-items:center;
  font-size:40px;margin:0 auto 20px}
.success h1{font-family:var(--serif);font-size:40px;margin:0 0 10px}
.success p{color:var(--muted);font-size:17px}
.success .cta-row{display:flex;gap:12px;justify-content:center;flex-wrap:wrap;margin-top:26px}

/* ---------- policies ---------- */
.policy{max-width:760px;margin:0 auto;padding:60px 0}
.policy h1{font-family:var(--serif);font-size:44px;margin:0 0 8px}
.policy h2{font-family:var(--serif);font-size:26px;margin:34px 0 10px}
.policy p,.policy li{color:#41505c;font-size:16px;line-height:1.7}

/* ---------- misc ---------- */
.section-pad{padding:66px 0}
.center-head{text-align:center;max-width:620px;margin:0 auto 30px}
.center-head h2{font-family:var(--serif);font-size:clamp(28px,3.4vw,40px);margin:8px 0}
.center-head p{color:var(--muted)}
.newsletter2{background:var(--ink);color:#fff;border-radius:26px;padding:44px;text-align:center;margin:60px 0}
.newsletter2 h2{font-family:var(--serif);font-size:32px;margin:6px 0 8px}
.newsletter2 p{color:#c6d4dc;margin:0 0 18px}
.newsletter2 form{display:flex;gap:10px;max-width:440px;margin:auto;flex-wrap:wrap;justify-content:center}
.newsletter2 input{flex:1;min-width:220px;padding:14px 16px;border-radius:12px;border:0;font-size:15px}

@media(max-width:860px){
  .featured .wrap2{grid-template-columns:200px 1fr;gap:30px;padding:48px 0}
  .detail-hero{grid-template-columns:1fr;gap:34px}
  .detail-hero .cover3d{max-width:260px;margin:auto}
  .convert{grid-template-columns:120px 1fr;gap:20px;padding:24px}
  .sticky-buy{display:flex}
  .floating-cta{left:12px;right:12px;max-width:none}
}
@media(max-width:560px){
  .featured .wrap2{grid-template-columns:1fr;text-align:center}
  .featured .cover3d{max-width:190px;margin:auto}
  .format-cards{grid-template-columns:1fr}
  .book-card .btns{grid-template-columns:1fr}
}