:root {
  --bg: oklch(98% 0.004 95);
  --surface: oklch(100% 0.002 95);
  --fg: oklch(20% 0.018 70);
  --muted: oklch(48% 0.012 70);
  --border: oklch(90% 0.006 95);
  --accent: oklch(42% 0.09 145);
  --accent-soft: oklch(94% 0.03 145);
  --warn: oklch(55% 0.12 55);
  --font-display: "Iowan Old Style", "Palatino Linotype", Palatino, "Book Antiqua", Georgia, serif;
  --font-body: -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;
  --font-mono: ui-monospace, "IBM Plex Mono", "SF Mono", Menlo, monospace;
  --radius: 2px;
  --max: 1120px;
  --space: clamp(1rem, 2.5vw, 2rem);
  --shadow: 0 18px 40px oklch(20% 0.02 70 / 0.08);
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 18px;
  line-height: 1.6;
  color: var(--fg);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration-thickness: 1px; text-underline-offset: 0.2em; }
a:hover { color: var(--accent); }
button, input, select, textarea { font: inherit; }
.wrap { width: min(100% - 2 * var(--space), var(--max)); margin-inline: auto; }
.skip {
  position: absolute; left: -999px; top: 0; background: var(--fg); color: var(--bg);
  padding: 0.75rem 1rem; z-index: 100;
}
.skip:focus { left: var(--space); top: var(--space); }
.site-header {
  position: sticky; top: 0; z-index: 40;
  background: oklch(98% 0.004 95 / 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}
.header-inner {
  display: flex; align-items: center; justify-content: space-between;
  gap: 1rem; padding: 0.9rem 0; min-height: 4.25rem;
}
.logo {
  font-family: var(--font-display); font-size: 1.55rem; font-weight: 700;
  letter-spacing: -0.02em; text-decoration: none; color: var(--fg);
}
.logo span { color: var(--accent); }
.nav-desktop {
  display: none; gap: 1.25rem; align-items: center; list-style: none; margin: 0; padding: 0;
}
.nav-desktop a {
  text-decoration: none; font-size: 0.95rem; color: var(--muted); font-weight: 500;
}
.nav-desktop a:hover, .nav-desktop a[aria-current="page"] { color: var(--fg); }
.header-actions { display: flex; align-items: center; gap: 0.6rem; }
.icon-btn, .btn {
  appearance: none; border: 1px solid var(--border); background: var(--surface);
  color: var(--fg); border-radius: var(--radius); cursor: pointer;
  transition: background 0.15s ease, border-color 0.15s ease, color 0.15s ease, transform 0.15s ease;
}
.icon-btn {
  min-width: 2.75rem; min-height: 2.75rem; display: inline-grid; place-items: center;
  position: relative;
}
.icon-btn:hover, .btn:hover { border-color: var(--fg); }
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 0.5rem;
  padding: 0.85rem 1.35rem; font-weight: 600; text-decoration: none; line-height: 1.2;
}
.btn-primary { background: var(--fg); color: var(--bg); border-color: var(--fg); }
.btn-primary:hover { background: var(--accent); border-color: var(--accent); color: #fff; }
.btn-ghost { background: transparent; }
.btn-accent { background: var(--accent); border-color: var(--accent); color: #fff; }
.btn-accent:hover { filter: brightness(1.05); color: #fff; }
.cart-count {
  position: absolute; top: 0.2rem; right: 0.15rem;
  min-width: 1.15rem; height: 1.15rem; border-radius: 999px;
  background: var(--accent); color: #fff; font-size: 0.7rem; font-weight: 700;
  display: grid; place-items: center; padding: 0 0.25rem;
  font-variant-numeric: tabular-nums;
}
.menu-toggle { display: inline-grid; }
.mobile-nav {
  display: none; border-top: 1px solid var(--border); padding: 0.75rem 0 1rem;
}
.mobile-nav.open { display: block; }
.mobile-nav a {
  display: block; padding: 0.85rem 0; text-decoration: none; border-bottom: 1px solid var(--border);
  font-size: 1.05rem; font-weight: 500;
}
.mobile-nav a:last-child { border-bottom: 0; }
main { min-height: 65vh; }
.page { display: none; padding: clamp(1.5rem, 4vw, 3rem) 0 4rem; }
.page.active { display: block; animation: fadeIn 0.35s cubic-bezier(0.23, 1, 0.32, 1); }
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: none; }
}
.kicker {
  font-family: var(--font-mono); font-size: 0.78rem; letter-spacing: 0.12em;
  text-transform: uppercase; color: var(--accent); margin: 0 0 0.75rem;
}
h1, h2, h3 {
  font-family: var(--font-display); font-weight: 700; line-height: 1.15;
  letter-spacing: -0.02em; margin: 0 0 0.75rem;
}
h1 { font-size: clamp(2.2rem, 5vw, 3.6rem); }
h2 { font-size: clamp(1.7rem, 3.5vw, 2.4rem); }
h3 { font-size: 1.25rem; }
.lead { font-size: 1.15rem; color: var(--muted); max-width: 42rem; }
.hero {
  display: grid; gap: 2.5rem; align-items: center;
  padding: clamp(1.5rem, 5vw, 3.5rem) 0 clamp(2rem, 5vw, 4rem);
  border-bottom: 1px solid var(--border);
}
.hero-copy .btn { margin-top: 0.5rem; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 0.75rem; margin-top: 1.5rem; }
.hero-note {
  margin-top: 1.25rem; font-size: 0.95rem; color: var(--muted);
  display: flex; flex-wrap: wrap; gap: 0.75rem 1.25rem;
}
.hero-note strong { color: var(--fg); font-weight: 600; }
.stage-3d {
  perspective: 1200px; min-height: 320px;
  display: grid; place-items: center; position: relative;
}
.book-stack {
  position: relative; width: min(100%, 340px); height: 300px;
  transform-style: preserve-3d; transform: rotateX(12deg) rotateY(-24deg);
  animation: floatStack 7s ease-in-out infinite;
}
@keyframes floatStack {
  0%, 100% { transform: rotateX(12deg) rotateY(-24deg) translateY(0); }
  50% { transform: rotateX(10deg) rotateY(-18deg) translateY(-10px); }
}
.book-3d {
  position: absolute; width: 170px; height: 230px;
  transform-style: preserve-3d; border-radius: 2px 6px 6px 2px;
  box-shadow: var(--shadow);
}
.book-3d .face {
  position: absolute; inset: 0; border-radius: inherit;
  background: linear-gradient(145deg, var(--c1), var(--c2));
  border: 1px solid oklch(20% 0.02 70 / 0.12);
  display: flex; flex-direction: column; justify-content: space-between;
  padding: 1.1rem 0.9rem; color: #fff;
}
.book-3d .spine {
  position: absolute; top: 0; left: -16px; width: 16px; height: 100%;
  background: linear-gradient(90deg, oklch(25% 0.03 70), oklch(35% 0.04 70));
  transform: rotateY(-90deg) translateZ(8px); transform-origin: right center;
}
.book-3d .pages {
  position: absolute; top: 4px; right: -10px; width: 10px; height: calc(100% - 8px);
  background: repeating-linear-gradient(to bottom, #f7f4ee 0 2px, #e8e2d6 2px 3px);
  transform: rotateY(90deg) translateZ(5px); transform-origin: left center;
}
.book-3d .face small {
  font-family: var(--font-mono); font-size: 0.65rem; letter-spacing: 0.08em;
  text-transform: uppercase; opacity: 0.85;
}
.book-3d .face strong {
  font-family: var(--font-display); font-size: 1.15rem; line-height: 1.2;
}
.book-3d.b1 { top: 20px; left: 20px; --c1: #2f5d3a; --c2: #1e3d28; z-index: 3; transform: translateZ(40px); }
.book-3d.b2 { top: 40px; left: 90px; --c1: #7a3b2e; --c2: #4f241c; z-index: 2; transform: translateZ(10px) rotateZ(4deg); }
.book-3d.b3 { top: 10px; left: 150px; --c1: #3a4a63; --c2: #243246; z-index: 1; transform: translateZ(-20px) rotateZ(-6deg); }
.trust-row {
  display: grid; gap: 1rem; grid-template-columns: 1fr;
  padding: 1.75rem 0; border-bottom: 1px solid var(--border);
}
.trust-item {
  border: 1px solid var(--border); background: var(--surface);
  padding: 1.1rem 1.2rem;
}
.trust-item strong { display: block; font-size: 1rem; margin-bottom: 0.25rem; }
.trust-item p { margin: 0; color: var(--muted); font-size: 0.95rem; }
.section { padding: clamp(2rem, 5vw, 3.5rem) 0; }
.section-head {
  display: flex; flex-wrap: wrap; align-items: end; justify-content: space-between;
  gap: 1rem; margin-bottom: 1.5rem;
}
.section-head p { margin: 0; color: var(--muted); max-width: 36rem; }
.cats {
  display: grid; gap: 1rem; grid-template-columns: 1fr;
}
.cat-card {
  position: relative; overflow: hidden; min-height: 160px;
  border: 1px solid var(--border); background: var(--surface);
  padding: 1.4rem; text-decoration: none; display: flex; flex-direction: column; justify-content: end;
  transition: transform 0.2s cubic-bezier(0.23, 1, 0.32, 1), border-color 0.2s;
}
.cat-card:hover { transform: translateY(-3px); border-color: var(--fg); color: inherit; }
.cat-card .num {
  font-family: var(--font-mono); font-size: 0.75rem; letter-spacing: 0.1em;
  text-transform: uppercase; color: var(--muted); margin-bottom: 0.5rem;
}
.cat-card h3 { margin: 0 0 0.35rem; }
.cat-card p { margin: 0; color: var(--muted); font-size: 0.95rem; }
.cat-card::after {
  content: ""; position: absolute; right: -20px; top: -20px; width: 120px; height: 120px;
  border-radius: 50%; background: var(--accent-soft); opacity: 0.8;
}
.grid-products {
  display: grid; gap: 1.25rem;
  grid-template-columns: 1fr;
}
.product-card {
  background: var(--surface); border: 1px solid var(--border);
  display: grid; grid-template-rows: auto 1fr; transition: border-color 0.2s, transform 0.2s;
}
.product-card:hover { border-color: var(--fg); transform: translateY(-2px); }
.product-card a.cover-link { text-decoration: none; color: inherit; }
.cover-3d {
  perspective: 900px; background: oklch(96% 0.008 95);
  border-bottom: 1px solid var(--border); min-height: 220px;
  display: grid; place-items: center; padding: 1.5rem;
}
.cover-book {
  width: 132px; height: 180px; position: relative;
  transform-style: preserve-3d; transition: transform 0.45s cubic-bezier(0.23, 1, 0.32, 1);
  transform: rotateY(-18deg) rotateX(6deg);
}
.product-card:hover .cover-book { transform: rotateY(-8deg) rotateX(2deg) translateY(-4px); }
.cover-front {
  position: absolute; inset: 0; border-radius: 2px 5px 5px 2px;
  background: linear-gradient(155deg, var(--c1), var(--c2));
  color: #fff; padding: 1rem 0.85rem; display: flex; flex-direction: column; justify-content: space-between;
  box-shadow: 12px 16px 30px oklch(20% 0.02 70 / 0.18);
  border: 1px solid oklch(100% 0 0 / 0.12);
}
.cover-front .meta {
  font-family: var(--font-mono); font-size: 0.62rem; letter-spacing: 0.1em; text-transform: uppercase; opacity: 0.85;
}
.cover-front .title {
  font-family: var(--font-display); font-size: 1.05rem; line-height: 1.2; font-weight: 700;
}
.cover-edge {
  position: absolute; top: 0; right: -9px; width: 9px; height: 100%;
  background: linear-gradient(to right, #efe9dc, #d9d1c2);
  transform: rotateY(90deg); transform-origin: left center;
}
.card-body { padding: 1.1rem 1.15rem 1.25rem; display: grid; gap: 0.65rem; }
.card-body h3 { margin: 0; font-size: 1.15rem; }
.card-body h3 a { text-decoration: none; }
.card-body h3 a:hover { color: var(--accent); }
.card-body .desc { margin: 0; color: var(--muted); font-size: 0.95rem; }
.price-row {
  display: flex; align-items: center; justify-content: space-between; gap: 0.75rem; margin-top: 0.25rem;
}
.price {
  font-variant-numeric: tabular-nums; font-weight: 700; font-size: 1.15rem;
}
.badge {
  display: inline-block; font-family: var(--font-mono); font-size: 0.68rem;
  letter-spacing: 0.08em; text-transform: uppercase; padding: 0.25rem 0.45rem;
  border: 1px solid var(--border); color: var(--muted);
}
.filters {
  display: flex; flex-wrap: wrap; gap: 0.5rem; margin: 1rem 0 1.5rem;
}
.chip {
  border: 1px solid var(--border); background: var(--surface); color: var(--muted);
  padding: 0.55rem 0.9rem; border-radius: 999px; cursor: pointer; font-size: 0.92rem;
}
.chip[aria-pressed="true"], .chip:hover { border-color: var(--fg); color: var(--fg); background: var(--bg); }
.breadcrumb {
  font-size: 0.92rem; color: var(--muted); margin-bottom: 1.25rem;
}
.breadcrumb a { color: var(--muted); text-decoration: none; }
.breadcrumb a:hover { color: var(--fg); }
.product-layout {
  display: grid; gap: 2rem; align-items: start;
}
.product-gallery {
  border: 1px solid var(--border); background: oklch(96% 0.008 95);
  min-height: 360px; display: grid; place-items: center; padding: 2rem;
  perspective: 1000px;
}
.product-gallery .cover-book {
  width: 190px; height: 260px; transform: rotateY(-22deg) rotateX(8deg);
  animation: productSpin 10s ease-in-out infinite;
}
@keyframes productSpin {
  0%, 100% { transform: rotateY(-22deg) rotateX(8deg); }
  50% { transform: rotateY(-8deg) rotateX(4deg) translateY(-6px); }
}
.product-info .price { font-size: 1.6rem; margin: 0.5rem 0 1rem; }
.product-meta {
  display: grid; gap: 0.5rem; margin: 1.25rem 0; padding: 1rem 0;
  border-top: 1px solid var(--border); border-bottom: 1px solid var(--border);
  font-size: 0.98rem;
}
.product-meta dt { font-family: var(--font-mono); font-size: 0.72rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--muted); }
.product-meta dd { margin: 0 0 0.4rem; }
.qty-row { display: flex; align-items: center; gap: 0.75rem; margin: 1rem 0 1.25rem; }
.qty-row label { font-weight: 600; }
.qty-row input {
  width: 4.5rem; padding: 0.65rem; border: 1px solid var(--border); background: var(--surface);
  border-radius: var(--radius); font-variant-numeric: tabular-nums;
}
.cart-table { width: 100%; border-collapse: collapse; }
.cart-table th, .cart-table td {
  text-align: left; padding: 1rem 0.5rem; border-bottom: 1px solid var(--border); vertical-align: middle;
}
.cart-table th {
  font-family: var(--font-mono); font-size: 0.72rem; letter-spacing: 0.08em;
  text-transform: uppercase; color: var(--muted); font-weight: 500;
}
.cart-item-title { font-weight: 600; }
.cart-empty {
  border: 1px dashed var(--border); padding: 2.5rem 1.5rem; text-align: center; background: var(--surface);
}
.cart-summary {
  margin-top: 1.5rem; border: 1px solid var(--border); background: var(--surface); padding: 1.25rem;
  display: grid; gap: 0.75rem; max-width: 420px; margin-left: auto;
}
.cart-summary .row { display: flex; justify-content: space-between; gap: 1rem; }
.cart-summary .total { font-size: 1.2rem; font-weight: 700; padding-top: 0.5rem; border-top: 1px solid var(--border); }
.prose { max-width: 42rem; }
.prose p { color: var(--muted); }
.prose h2 { margin-top: 2rem; }
.two-col { display: grid; gap: 2rem; }
.contact-card, .info-card {
  border: 1px solid var(--border); background: var(--surface); padding: 1.35rem;
}
.contact-card a { color: var(--accent); font-weight: 600; text-decoration: none; }
.contact-card a:hover { text-decoration: underline; }
.contact-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 0.85rem; }
.contact-list li { display: grid; gap: 0.15rem; }
.contact-list span { font-family: var(--font-mono); font-size: 0.72rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--muted); }
.site-footer {
  border-top: 1px solid var(--border); background: oklch(97% 0.005 95);
  padding: 2.5rem 0 1.5rem; margin-top: 1rem;
}
.footer-grid {
  display: grid; gap: 1.75rem; grid-template-columns: 1fr;
  margin-bottom: 2rem;
}
.footer-grid h3 {
  font-family: var(--font-mono); font-size: 0.72rem; letter-spacing: 0.1em;
  text-transform: uppercase; color: var(--muted); margin: 0 0 0.75rem; font-weight: 500;
}
.footer-grid ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 0.45rem; }
.footer-grid a { text-decoration: none; color: var(--fg); }
.footer-grid a:hover { color: var(--accent); }
.footer-brand p { color: var(--muted); margin: 0.5rem 0 0; font-size: 0.95rem; max-width: 28rem; }
.footer-bottom {
  border-top: 1px solid var(--border); padding-top: 1rem;
  display: flex; flex-wrap: wrap; gap: 0.75rem 1.25rem; justify-content: space-between;
  color: var(--muted); font-size: 0.9rem;
}
.footer-legal { display: flex; flex-wrap: wrap; gap: 0.75rem 1rem; }
.footer-legal a { color: var(--muted); text-decoration: none; }
.footer-legal a:hover { color: var(--fg); }
.cookie-banner {
  position: fixed; left: var(--space); right: var(--space); bottom: var(--space);
  z-index: 60; max-width: 520px; margin-inline: auto;
  background: var(--surface); border: 1px solid var(--border); box-shadow: var(--shadow);
  padding: 1.1rem 1.2rem; display: none;
}
.cookie-banner.show { display: block; animation: fadeIn 0.25s ease; }
.cookie-banner p { margin: 0 0 0.9rem; font-size: 0.95rem; color: var(--muted); }
.cookie-banner a { color: var(--fg); }
.cookie-actions { display: flex; flex-wrap: wrap; gap: 0.5rem; }
.toast {
  position: fixed; bottom: calc(var(--space) + 4.5rem); right: var(--space);
  background: var(--fg); color: var(--bg); padding: 0.85rem 1.1rem; z-index: 70;
  border-radius: var(--radius); opacity: 0; pointer-events: none;
  transform: translateY(8px); transition: opacity 0.2s, transform 0.2s;
  font-size: 0.95rem; max-width: min(90vw, 320px);
}
.toast.show { opacity: 1; transform: none; }
.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0;
}
.steps { display: grid; gap: 1rem; counter-reset: step; }
.step {
  border: 1px solid var(--border); background: var(--surface); padding: 1.15rem 1.2rem 1.15rem 3.5rem;
  position: relative;
}
.step::before {
  counter-increment: step; content: counter(step);
  position: absolute; left: 1rem; top: 1.15rem;
  font-family: var(--font-mono); font-size: 0.85rem; color: var(--accent); font-weight: 700;
}
.faq details {
  border-bottom: 1px solid var(--border); padding: 1rem 0;
}
.faq summary {
  cursor: pointer; font-weight: 600; list-style: none;
}
.faq summary::-webkit-details-marker { display: none; }
.faq p { margin: 0.6rem 0 0; color: var(--muted); }
.remove-btn {
  background: none; border: 0; color: var(--muted); cursor: pointer; text-decoration: underline;
  padding: 0; font-size: 0.92rem;
}
.remove-btn:hover { color: var(--fg); }
.qty-mini { width: 3.5rem; padding: 0.4rem; border: 1px solid var(--border); background: var(--surface); }
@media (min-width: 700px) {
  .trust-row { grid-template-columns: repeat(3, 1fr); }
  .cats { grid-template-columns: repeat(3, 1fr); }
  .grid-products { grid-template-columns: repeat(2, 1fr); }
  .product-layout { grid-template-columns: 1fr 1fr; }
  .two-col { grid-template-columns: 1.2fr 0.8fr; }
  .footer-grid { grid-template-columns: 1.4fr 1fr 1fr 1fr; }
}
@media (min-width: 960px) {
  .nav-desktop { display: flex; }
  .menu-toggle { display: none; }
  .hero { grid-template-columns: 1.1fr 0.9fr; }
  .grid-products { grid-template-columns: repeat(3, 1fr); }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}