/* =========================================================
   Brightbound Books — shared design system
   Warm library palette: deep browns, cream, gold
   ========================================================= */

@import url('https://fonts.googleapis.com/css2?family=Playfair+Display:ital,wght@0,500;0,600;0,700;0,800;0,900;1,500&family=Poppins:wght@300;400;500;600;700&display=swap');

:root{
  --brown-900:#2c1810;
  --brown-800:#3a2817;
  --brown-700:#503826;
  --brown-600:#6b4f38;
  --brown-500:#8a6c4f;
  --brown-300:#b89b7d;
  --cream:#faf3e3;
  --cream-soft:#fdf8ee;
  --cream-card:#fffaf0;
  --gold:#c8963e;
  --gold-dark:#a9772a;
  --sienna:#a0522d;
  --ink:#2c1810;
  --muted:#6b5a48;
  --line:#e9dcc4;
  --shadow-sm:0 4px 14px rgba(44,24,16,.08);
  --shadow-md:0 12px 30px rgba(44,24,16,.14);
  --shadow-lg:0 24px 60px rgba(44,24,16,.22);
  --radius:16px;
  --radius-lg:26px;
  --nav-h:74px;
  --maxw:1240px;
  --ease:cubic-bezier(.22,.61,.36,1);
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:'Poppins',system-ui,-apple-system,Segoe UI,sans-serif;
  color:var(--ink);
  background:var(--cream-soft);
  line-height:1.65;
  overflow-x:hidden;
}
h1,h2,h3,h4{font-family:'Playfair Display',Georgia,serif;line-height:1.12;font-weight:700;letter-spacing:-.5px}
a{text-decoration:none;color:inherit}
img{max-width:100%;display:block}
ul{list-style:none}
.wrap{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 22px}
section{position:relative}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;gap:.55rem;
  padding:.85rem 1.7rem;border-radius:50px;font-weight:600;
  font-size:.95rem;cursor:pointer;border:2px solid transparent;
  transition:transform .25s var(--ease),box-shadow .25s var(--ease),background .25s,color .25s;
  white-space:nowrap;
}
.btn:active{transform:scale(.97)}
.btn-gold{background:linear-gradient(135deg,var(--gold),var(--gold-dark));color:#fff;box-shadow:0 10px 24px rgba(168,119,42,.35)}
.btn-gold:hover{transform:translateY(-3px);box-shadow:0 16px 34px rgba(168,119,42,.45)}
.btn-dark{background:var(--brown-800);color:var(--cream)}
.btn-dark:hover{background:var(--brown-900);transform:translateY(-3px)}
.btn-ghost{background:transparent;border-color:var(--brown-300);color:var(--brown-800)}
.btn-ghost:hover{background:var(--brown-800);color:var(--cream);border-color:var(--brown-800)}
.btn-light{background:#fff;color:var(--brown-900)}
.btn-light:hover{transform:translateY(-3px);box-shadow:var(--shadow-md)}
.btn-block{width:100%;justify-content:center}

/* ---------- top utility bar ---------- */
.topbar{background:var(--brown-900);color:#e9d9c3;font-size:.85rem}
.topbar .wrap{display:flex;align-items:center;gap:26px;height:42px;flex-wrap:nowrap;overflow:hidden}
.topbar a{color:#e9d9c3;display:inline-flex;align-items:center;gap:.45rem}
.topbar a:hover{color:var(--gold)}
.topbar .tb-ann{margin-left:auto;display:flex;align-items:center;gap:.5rem;color:#d8c4a8;overflow:hidden;white-space:nowrap}
.topbar .tb-ann .tick{position:relative;max-width:520px;overflow:hidden}
.topbar .tb-ann .tick span{display:inline-block;padding-left:100%;animation:ticker 18s linear infinite}
@keyframes ticker{from{transform:translateX(0)}to{transform:translateX(-100%)}}
.topbar svg{width:15px;height:15px;fill:var(--gold)}

/* ---------- navbar ---------- */
.nav{position:sticky;top:0;z-index:60;background:var(--cream);
  border-bottom:1px solid var(--line);transition:box-shadow .3s,background .3s}
.nav.scrolled{box-shadow:var(--shadow-sm);background:rgba(250,243,227,.92);backdrop-filter:blur(10px)}
.nav .wrap{display:flex;align-items:center;height:var(--nav-h);gap:18px}
.brand{display:flex;align-items:center;gap:.65rem;font-family:'Playfair Display',serif;font-weight:800;
  font-size:1.5rem;color:var(--brown-900);letter-spacing:-.5px}
.brand .mark{height:46px;display:grid;place-items:center}
.brand .mark img,.brand .mark svg{height:46px;width:auto;display:block}
.brand small{display:block;font-family:'Poppins';font-size:.6rem;letter-spacing:3px;
  font-weight:500;color:var(--gold-dark);text-transform:uppercase;margin-top:-4px}
.menu{display:flex;align-items:center;gap:6px;margin-left:auto}
.menu a{padding:.55rem .95rem;border-radius:10px;font-weight:500;color:var(--brown-800);
  position:relative;transition:color .2s,background .2s}
.menu a::after{content:"";position:absolute;left:50%;bottom:6px;width:0;height:2px;
  background:var(--gold);transition:width .25s var(--ease),left .25s var(--ease)}
.menu a:hover,.menu a.active{color:var(--brown-900)}
.menu a:hover::after,.menu a.active::after{width:22px;left:calc(50% - 11px)}
.nav-actions{display:flex;align-items:center;gap:10px;margin-left:8px}
.icon-btn{width:44px;height:44px;border-radius:12px;display:grid;place-items:center;
  background:var(--cream-soft);border:1px solid var(--line);position:relative;cursor:pointer;
  transition:transform .2s,background .2s}
.icon-btn:hover{background:#fff;transform:translateY(-2px)}
.icon-btn svg{width:21px;height:21px;fill:var(--brown-800)}
.cart-count{position:absolute;top:-7px;right:-7px;min-width:20px;height:20px;padding:0 5px;
  background:var(--sienna);color:#fff;font-size:.7rem;font-weight:700;border-radius:50px;
  display:grid;place-items:center;font-family:'Poppins';box-shadow:0 3px 8px rgba(160,82,45,.4)}
.hamburger{display:none}

/* ---------- mobile menu ---------- */
.mobile-menu{position:fixed;inset:0 0 0 auto;width:min(82vw,340px);background:var(--brown-900);
  z-index:200;transform:translateX(100%);transition:transform .4s var(--ease);
  padding:26px 24px;display:flex;flex-direction:column;gap:6px;box-shadow:var(--shadow-lg)}
.mobile-menu.open{transform:translateX(0)}
.mobile-menu a{color:#e9d9c3;padding:.9rem .4rem;border-bottom:1px solid rgba(255,255,255,.08);
  font-weight:500;font-size:1.05rem}
.mobile-menu a:hover,.mobile-menu a.active{color:var(--gold)}
.mm-close{align-self:flex-end;background:none;border:none;color:#e9d9c3;font-size:1.8rem;cursor:pointer}
.overlay{position:fixed;inset:0;background:rgba(20,10,4,.55);z-index:150;opacity:0;
  pointer-events:none;transition:opacity .3s}
.overlay.show{opacity:1;pointer-events:auto}

/* ---------- generic section heading ---------- */
.eyebrow{display:inline-flex;align-items:center;gap:.5rem;font-family:'Poppins';font-weight:600;
  font-size:.78rem;letter-spacing:2.5px;text-transform:uppercase;color:var(--gold-dark)}
.eyebrow::before{content:"";width:26px;height:2px;background:var(--gold)}
.sec-title{font-size:clamp(1.9rem,4vw,2.9rem);color:var(--brown-900);margin:.6rem 0 .5rem}
.sec-sub{color:var(--muted);max-width:600px}
.center{text-align:center}
.center .sec-sub{margin-inline:auto}
.center .eyebrow::before{display:none}

/* ---------- page hero (inner pages) ---------- */
.page-hero{position:relative;padding:96px 0 86px;color:#fff;text-align:center;
  background:linear-gradient(rgba(30,16,8,.72),rgba(30,16,8,.82)),
  url('https://images.unsplash.com/photo-1507842217343-583bb7270b66?auto=format&fit=crop&w=1600&q=70') center/cover fixed}
.page-hero h1{font-size:clamp(2.2rem,5vw,3.6rem);text-shadow:0 4px 24px rgba(0,0,0,.4)}
.page-hero .crumb{margin-top:14px;font-size:.92rem;color:#e2cfb3;letter-spacing:.5px}
.page-hero .crumb a:hover{color:var(--gold)}
.page-hero p.lead{max-width:640px;margin:16px auto 0;color:#ecdcc6}

/* ---------- book card ---------- */
.book-card{background:var(--cream-card);border:1px solid var(--line);border-radius:var(--radius);
  overflow:hidden;display:flex;flex-direction:column;transition:transform .35s var(--ease),box-shadow .35s;
  position:relative}
.book-card:hover{transform:translateY(-8px);box-shadow:var(--shadow-md)}
.book-cover{position:relative;aspect-ratio:3/4;display:grid;place-items:center;
  padding:18px;overflow:hidden}
.book-cover .spine{position:absolute;left:0;top:0;bottom:0;width:9px;background:rgba(0,0,0,.22)}
.book-cover .ct{position:relative;z-index:2;text-align:center;color:#fff;
  font-family:'Playfair Display',serif}
.book-cover .ct .bt{font-size:1.05rem;font-weight:700;line-height:1.2;text-shadow:0 2px 10px rgba(0,0,0,.3)}
.book-cover .ct .ba{font-family:'Poppins';font-size:.72rem;letter-spacing:1px;text-transform:uppercase;
  margin-top:8px;opacity:.85}
.book-cover::after{content:"";position:absolute;inset:0;
  background:linear-gradient(120deg,rgba(255,255,255,.22),transparent 45%)}
.book-cover img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;z-index:1}
.book-cover.has-img::after{background:linear-gradient(transparent 55%,rgba(28,15,7,.28))}
.book-sku{font-size:.7rem;letter-spacing:.5px;color:#a08a72;font-weight:500}
.badge{position:absolute;top:12px;right:12px;z-index:3;background:var(--sienna);color:#fff;
  font-size:.68rem;font-weight:700;padding:.3rem .6rem;border-radius:50px;letter-spacing:.5px;
  font-family:'Poppins';text-transform:uppercase}
.badge.bestseller{background:var(--gold-dark)}
.book-body{padding:16px 16px 18px;display:flex;flex-direction:column;gap:6px;flex:1}
.book-cat{font-size:.72rem;font-weight:600;letter-spacing:1px;text-transform:uppercase;color:var(--gold-dark)}
.book-title{font-size:1.08rem;color:var(--brown-900);line-height:1.25}
.book-title a:hover{color:var(--sienna)}
.book-author{font-size:.85rem;color:var(--muted)}
.stars{display:inline-flex;gap:2px;color:var(--gold);font-size:.85rem}
.stars .o{color:#d9c7a8}
.book-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding-top:12px}
.price{font-family:'Playfair Display',serif;font-weight:700;font-size:1.3rem;color:var(--brown-900)}
.price .was{font-family:'Poppins';font-size:.82rem;color:#b0a08c;text-decoration:line-through;
  font-weight:400;margin-left:6px}
.add-btn{width:42px;height:42px;border-radius:12px;border:none;cursor:pointer;display:grid;place-items:center;
  background:var(--brown-800);transition:transform .2s,background .2s}
.add-btn svg{width:19px;height:19px;fill:var(--gold)}
.add-btn:hover{background:var(--sienna);transform:scale(1.08) rotate(-6deg)}

/* grid helpers */
.grid{display:grid;gap:24px}
.grid-4{grid-template-columns:repeat(4,1fr)}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-2{grid-template-columns:repeat(2,1fr)}

/* ---------- footer ---------- */
.footer{background:var(--brown-900);color:#d4c0a6;padding:70px 0 26px;margin-top:90px}
.footer .cols{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.4fr;gap:40px}
.footer h4{color:#fff;font-size:1.15rem;margin-bottom:18px}
.footer .brand{color:#fff;margin-bottom:14px}
.footer p{font-size:.92rem;color:#bda88c}
.footer a{font-size:.92rem;color:#bda88c;display:inline-block;padding:5px 0;transition:color .2s,transform .2s}
.footer a:hover{color:var(--gold);transform:translateX(4px)}
.footer .fcol ul{display:flex;flex-direction:column}
.foot-news{display:flex;gap:8px;margin-top:14px}
.foot-news input{flex:1;padding:.75rem 1rem;border-radius:50px;border:1px solid rgba(255,255,255,.15);
  background:rgba(255,255,255,.06);color:#fff;font-family:'Poppins';font-size:.9rem}
.foot-news input::placeholder{color:#9c8a72}
.foot-news button{border:none;cursor:pointer}
.socials{display:flex;gap:10px;margin-top:18px}
.socials a{width:38px;height:38px;border-radius:10px;background:rgba(255,255,255,.07);display:grid;
  place-items:center;transition:background .2s,transform .2s}
.socials a:hover{background:var(--gold);transform:translateY(-3px)}
.socials svg{width:17px;height:17px;fill:#e9d9c3}
.socials a:hover svg{fill:var(--brown-900)}
.foot-bottom{border-top:1px solid rgba(255,255,255,.1);margin-top:46px;padding-top:22px;
  display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;font-size:.85rem;color:#9c8a72}

/* ---------- toast ---------- */
.toast{position:fixed;bottom:26px;left:50%;transform:translate(-50%,140%);z-index:300;
  background:var(--brown-900);color:#fff;padding:.95rem 1.4rem;border-radius:50px;
  box-shadow:var(--shadow-lg);display:flex;align-items:center;gap:.6rem;font-weight:500;
  transition:transform .45s var(--ease);font-size:.92rem}
.toast.show{transform:translate(-50%,0)}
.toast svg{width:20px;height:20px;fill:var(--gold)}

/* ---------- reveal on scroll ---------- */
.reveal{opacity:0;transform:translateY(34px);transition:opacity .7s var(--ease),transform .7s var(--ease)}
.reveal.in{opacity:1;transform:none}

/* ---------- responsive ---------- */
@media(max-width:1024px){
  .grid-4{grid-template-columns:repeat(3,1fr)}
  .footer .cols{grid-template-columns:1fr 1fr}
}
@media(max-width:860px){
  .menu,.nav-actions .icon-btn.search{display:none}
  .hamburger{display:grid}
  .topbar .wrap{gap:16px}
  .topbar a.tb-phone{display:none}
}
@media(max-width:680px){
  .grid-4,.grid-3,.grid-2{grid-template-columns:repeat(2,1fr)}
  .footer .cols{grid-template-columns:1fr}
  .topbar .tb-ann{display:none}
}
@media(max-width:460px){
  .grid-4,.grid-3{grid-template-columns:1fr 1fr}
}