/* BookCare — Black & White Professional Theme */
:root{
  --bg:#ffffff;
  --bg-soft:#f6f6f6;
  --card:#ffffff;
  --card-2:#fafafa;
  --ink:#111111;
  --ink-soft:#333333;
  --muted:#666666;
  --line:#e5e5e5;
  --line-dark:#d4d4d4;
  --black:#0a0a0a;
  --white:#ffffff;
  --shadow:0 10px 30px rgba(0,0,0,.07);
  --shadow-sm:0 4px 14px rgba(0,0,0,.06);
  --radius:18px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:Inter,Arial,sans-serif;background:var(--bg);color:var(--ink);line-height:1.65;-webkit-font-smoothing:antialiased}
a{text-decoration:none;color:inherit}
img{max-width:100%;display:block}
.container{width:min(1180px,calc(100% - 32px));margin:auto}
.narrow{width:min(860px,calc(100% - 32px));margin:auto}

/* Header */
.topbar{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.94);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;justify-content:space-between;gap:18px;padding:12px 0}
.brand{display:flex;align-items:center;gap:12px;font-weight:800;letter-spacing:.02em;font-size:1.05rem}
.brand img{height:40px;width:auto}
.nav-links{display:flex;gap:18px;align-items:center;flex-wrap:wrap}
.nav-links a{color:var(--muted);font-weight:600;font-size:.95rem}
.nav-links a:hover{color:var(--black)}
.cart-pill{padding:9px 16px;border-radius:999px;background:var(--black);color:#fff !important;font-weight:700}
.cart-pill span{background:#fff;color:#000;border-radius:999px;padding:1px 8px;margin-left:4px;font-size:.82rem}

/* Hero — small & simple */
.hero{padding:40px 0 30px;background:linear-gradient(180deg,#fafafa 0%, #ffffff 100%)}
.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:30px;align-items:center}
.eyebrow{display:inline-block;padding:6px 14px;border:1px solid var(--line-dark);border-radius:999px;color:var(--ink-soft);font-size:.85rem;font-weight:600;background:#fff;letter-spacing:.03em}
h1{font-size:clamp(1.7rem,3.4vw,2.6rem);line-height:1.18;margin:14px 0 12px;font-weight:800;letter-spacing:-.01em}
.lead{font-size:1.02rem;color:var(--muted);max-width:60ch;margin:0}
.hero-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:22px}
.stat{background:#fff;padding:14px 16px;border-radius:14px;border:1px solid var(--line);box-shadow:var(--shadow-sm)}
.stat strong{display:block;font-size:1.1rem;color:var(--black)}
.stat span{color:var(--muted);font-size:.85rem}
.hero-media img{border-radius:16px;border:1px solid var(--line);box-shadow:var(--shadow);max-height:320px;width:100%;object-fit:cover}

/* Buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 20px;border-radius:12px;font-weight:700;font-size:.95rem;transition:.2s transform,.2s background,.2s color,.2s box-shadow;border:1px solid transparent;cursor:pointer;font-family:inherit}
.btn:hover{transform:translateY(-1px)}
.btn-dark{background:var(--black);color:#fff;box-shadow:var(--shadow-sm)}
.btn-dark:hover{background:#2a2a2a}
.btn-outline{border:1px solid var(--line-dark);color:var(--ink);background:#fff}
.btn-outline:hover{border-color:var(--black)}
.btn-row{display:flex;gap:12px;flex-wrap:wrap;margin-top:22px}

/* Sections */
.section{padding:40px 0}
.section-soft{background:var(--bg-soft);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{display:flex;justify-content:space-between;align-items:end;gap:24px;margin-bottom:22px}
.section-head h2{font-size:1.6rem;margin:0;letter-spacing:-.01em}
.section-head p{margin:4px 0 0;color:var(--muted);font-size:.98rem}

/* Book cards */
.grid-books{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}
.book-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-sm);transition:.2s box-shadow,.2s transform}
.book-card:hover{box-shadow:var(--shadow);transform:translateY(-2px)}
.book-media{position:relative;background:#f3f3f3;padding:18px;display:flex;align-items:center;justify-content:center;min-height:320px}
.book-media img{height:280px;width:auto;border-radius:10px;box-shadow:0 12px 26px rgba(0,0,0,.16)}
.badge{position:absolute;left:14px;top:14px;background:var(--black);color:#fff;font-size:.75rem;font-weight:700;padding:6px 12px;border-radius:999px;letter-spacing:.03em}
.format-pills{position:absolute;right:14px;top:14px;display:flex;flex-direction:column;gap:6px}
.format-pills i{font-style:normal;background:#fff;border:1px solid var(--line-dark);color:var(--ink-soft);font-size:.72rem;font-weight:700;padding:4px 10px;border-radius:999px}
.book-body{padding:18px}
.book-cat{color:var(--muted);font-weight:700;font-size:.8rem;text-transform:uppercase;letter-spacing:.06em}
.book-body h3{margin:6px 0 8px;font-size:1.25rem;letter-spacing:-.01em}
.book-body p{color:var(--muted);margin:0 0 14px;min-height:70px;font-size:.94rem}
.price-row{display:flex;gap:10px;align-items:baseline}
.price-row strong{font-size:1.35rem;color:var(--black)}
.price-row span{text-decoration:line-through;color:#9a9a9a;font-size:.95rem}
.price-row.big strong{font-size:1.9rem}
.card-actions{display:flex;gap:10px;margin-top:16px}
.card-actions .btn{flex:1}
.card-note{margin-top:10px;font-size:.8rem;color:var(--muted)}

/* Book detail page */
.book-hero{display:grid;grid-template-columns:.75fr 1.25fr;gap:30px;align-items:start}
.book-cover-wrap{position:relative}
.book-cover-wrap img{border-radius:16px;box-shadow:var(--shadow);border:1px solid var(--line)}
.book-info h1{font-size:clamp(1.6rem,3vw,2.4rem);margin:10px 0}
.book-info h2{font-size:1.05rem;color:var(--muted);font-weight:600;margin:0 0 12px}
.chip{display:inline-flex;padding:6px 14px;border-radius:999px;background:#f0f0f0;border:1px solid var(--line);color:var(--ink-soft);font-weight:700;font-size:.82rem}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:20px}

/* Format selector */
.format-box{margin:20px 0;padding:18px;border:1px solid var(--line);border-radius:14px;background:#fff}
.format-box h4{margin:0 0 12px;font-size:.95rem}
.format-options{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.format-opt{border:1px solid var(--line-dark);border-radius:12px;padding:12px 14px;cursor:pointer;transition:.15s;background:#fff}
.format-opt.active{border:2px solid var(--black);background:#fafafa}
.format-opt .fo-title{font-weight:800;font-size:.95rem;display:flex;justify-content:space-between;align-items:center}
.format-opt .fo-desc{color:var(--muted);font-size:.82rem;margin-top:4px}
.format-opt .fo-price{font-weight:800}

/* Lists */
.feature-list,.chapter-list{padding-left:20px}
.feature-list li,.chapter-list li{margin:8px 0;color:var(--muted)}
.note{padding:14px 16px;border-left:4px solid var(--black);background:#f6f6f6;border-radius:10px;color:var(--ink-soft);font-size:.95rem}

/* Filters & forms */
.filters{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:22px}
.filters input,.filters select,.form-grid input,.form-grid textarea,.form-grid select{width:100%;padding:13px 15px;border-radius:12px;background:#fff;border:1px solid var(--line-dark);color:var(--ink);outline:none;font-family:inherit;font-size:.95rem}
.filters input:focus,.filters select:focus,.form-grid input:focus,.form-grid textarea:focus,.form-grid select:focus{border-color:var(--black)}
.filters .field{flex:1 1 260px}
.form-grid{display:grid;gap:14px}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
label.flabel{font-size:.85rem;font-weight:700;color:var(--ink-soft);display:block;margin-bottom:5px}

/* Checkout */
.checkout-layout{display:grid;grid-template-columns:1fr 1fr;gap:22px;align-items:start}
.panel{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:22px;box-shadow:var(--shadow-sm)}
.checkout-item,.download-row{display:flex;gap:14px;align-items:center;padding:14px 0;border-bottom:1px solid var(--line)}
.checkout-item img,.download-row img{width:64px;height:96px;object-fit:cover;border-radius:8px;border:1px solid var(--line)}
.fmt-tag{display:inline-block;font-size:.72rem;font-weight:800;padding:3px 9px;border-radius:999px;margin-top:4px}
.fmt-tag.digital{background:#f0f0f0;color:#111;border:1px solid var(--line-dark)}
.fmt-tag.physical{background:#111;color:#fff}
.summary-card{display:grid;gap:4px;margin-bottom:6px}
.summary-card>div{display:flex;justify-content:space-between;padding:9px 0;border-bottom:1px dashed var(--line);font-size:.95rem}
.summary-card .grand{font-size:1.15rem;font-weight:800;border-bottom:none;padding-top:12px}
.free-ship{font-size:.82rem;color:#0a7a2f;font-weight:700}

/* Payment method radios */
.pay-methods{display:grid;gap:10px}
.pay-opt{border:1px solid var(--line-dark);border-radius:12px;padding:13px 15px;display:flex;gap:12px;align-items:flex-start;cursor:pointer;transition:.15s}
.pay-opt.active{border:2px solid var(--black);background:#fafafa}
.pay-opt input{margin-top:3px;accent-color:#111}
.pay-opt b{display:block}
.pay-opt small{color:var(--muted)}

/* Cards & grids */
.contact-grid,.policy-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.info-card{padding:20px;border-radius:var(--radius);background:#fff;border:1px solid var(--line);box-shadow:var(--shadow-sm)}
.info-card h3{margin-top:0}
.info-card p{color:var(--muted);margin:6px 0}
.section-copy{display:grid;gap:16px}
.section-copy p{font-size:1rem;color:var(--muted);margin:0}
.long-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-top:24px}
.long-card{padding:22px;border-radius:var(--radius);background:#fff;border:1px solid var(--line);box-shadow:var(--shadow-sm)}
.long-card h3{margin-top:0;font-size:1.15rem}
.long-card p,.long-card li{color:var(--muted)}
.long-card ul{margin:0;padding-left:18px;display:grid;gap:8px}

/* Steps (how it works) */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-top:20px}
.step{padding:20px;border-radius:var(--radius);background:#fff;border:1px solid var(--line);text-align:left;box-shadow:var(--shadow-sm)}
.step .num{display:inline-flex;width:34px;height:34px;border-radius:50%;background:var(--black);color:#fff;align-items:center;justify-content:center;font-weight:800;margin-bottom:10px}
.step h3{margin:0 0 6px;font-size:1rem}
.step p{margin:0;color:var(--muted);font-size:.9rem}

/* FAQ */
.faq-stack{display:grid;gap:14px}
.faq-item{padding:20px 22px;border-radius:var(--radius);background:#fff;border:1px solid var(--line)}
.faq-item h3{margin:0 0 8px;font-size:1.05rem}
.faq-item p{margin:0;color:var(--muted)}

/* Footer */
.footer{margin-top:44px;background:var(--black);color:#e8e8e8;border-top:1px solid #222}
.footer-grid{display:grid;grid-template-columns:1.3fr .8fr .9fr .9fr;gap:22px;padding:36px 0}
.footer .brand{color:#fff}
.footer-grid p,.footer-grid li{color:#a8a8a8;font-size:.92rem}
.footer-grid h4{color:#fff;font-size:.95rem;margin:0 0 12px;letter-spacing:.03em}
.footer-grid ul{list-style:none;padding:0;margin:0;display:grid;gap:8px}
.footer-grid a:hover{color:#fff}
.copyright{border-top:1px solid #262626;padding:16px 0;color:#8a8a8a;font-size:.88rem}

/* Reveal & misc */
.reveal{opacity:0;transform:translateY(16px);transition:all .6s ease}
.reveal.visible{opacity:1;transform:none}
.empty-state,.thanks-card{padding:26px;border-radius:var(--radius);border:1px dashed var(--line-dark);background:#fafafa}
.thanks-card h2{margin-top:0}
#toast{position:fixed;right:18px;bottom:18px;background:#111;border:1px solid #333;color:#fff;padding:13px 18px;border-radius:12px;box-shadow:var(--shadow);opacity:0;pointer-events:none;transform:translateY(10px);transition:.2s;z-index:60;font-size:.92rem}
#toast.show{opacity:1;transform:none}
.mono{font-family:ui-monospace,Menlo,Consolas,monospace}

/* Track order */
.track-result{margin-top:18px}
.status-line{display:grid;gap:0;margin-top:14px}
.status-step{display:flex;gap:14px;align-items:flex-start;padding:12px 0;border-bottom:1px dashed var(--line)}
.status-dot{width:14px;height:14px;border-radius:50%;background:#d8d8d8;margin-top:5px;flex:none}
.status-step.done .status-dot{background:var(--black)}
.status-step b{display:block}
.status-step small{color:var(--muted)}

/* Table */
.tbl{width:100%;border-collapse:collapse;font-size:.94rem}
.tbl th,.tbl td{padding:10px 12px;border-bottom:1px solid var(--line);text-align:left}
.tbl th{background:#fafafa;font-size:.82rem;text-transform:uppercase;letter-spacing:.04em;color:var(--muted)}

/* Responsive */
@media (max-width: 980px){
  .hero-grid,.book-hero,.checkout-layout,.footer-grid,.contact-grid,.policy-grid{grid-template-columns:1fr}
  .grid-books{grid-template-columns:repeat(2,minmax(0,1fr))}
  .hero-stats{grid-template-columns:1fr 1fr}
  .steps{grid-template-columns:1fr 1fr}
  .long-grid{grid-template-columns:1fr}
  .nav{flex-wrap:wrap}
  .nav-links{width:100%;justify-content:center}
}
@media (max-width: 640px){
  .grid-books{grid-template-columns:1fr}
  .section-head{flex-direction:column;align-items:flex-start}
  .book-media{min-height:290px}
  .book-media img{height:250px}
  .card-actions{flex-direction:column}
  .hero{padding-top:28px}
  .form-row{grid-template-columns:1fr}
  .format-options{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr}
  .container{width:min(100% - 24px,1180px)}
}