:root {
  --bg: #f7f1e7;
  --bg-2: #efe6d6;
  --ink: #1c1917;
  --ink-soft: #57534e;
  --line: rgba(28, 25, 23, 0.12);
  --card: #fffaf3;
  --shadow: 0 18px 50px rgba(28, 25, 23, 0.08);
  --ok: #166534;
  --err: #9f1239;
  --warn: #92400e;
}
[data-mode="dark"] {
  --bg: #12100e;
  --bg-2: #1b1714;
  --ink: #f5efe6;
  --ink-soft: #c4b8a8;
  --line: rgba(245, 239, 230, 0.12);
  --card: #1b1714;
  --shadow: 0 18px 50px rgba(0, 0, 0, 0.35);
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body.nb-body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: "IBM Plex Sans", system-ui, sans-serif;
  line-height: 1.55;
}
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0,0,0,0); }
.skip-link { position: absolute; left: -999px; top: 0; background: var(--ink); color: var(--bg); padding: .5rem 1rem; z-index: 80; }
.skip-link:focus { left: 1rem; top: 1rem; }
a { color: inherit; }
img { max-width: 100%; display: block; }
button, input, select, textarea { font: inherit; }
:focus-visible { outline: 2px solid var(--nb-secondary, #b45309); outline-offset: 3px; }

.nb-header {
  position: sticky; top: 0; z-index: 40;
  backdrop-filter: blur(16px);
  background: color-mix(in srgb, var(--bg) 86%, transparent);
  border-bottom: 1px solid var(--line);
}
.nb-header-inner {
  max-width: 1280px; margin: 0 auto;
  display: flex; align-items: center; gap: 1.25rem;
  padding: .85rem 1.25rem;
}
.nb-logo { display: flex; align-items: center; gap: .6rem; text-decoration: none; }
.nb-mark {
  width: 2rem; height: 2rem; border-radius: 999px;
  display: grid; place-items: center;
  background: var(--nb-primary, #1c1917); color: var(--bg);
  font-family: "Cormorant Garamond", serif; font-weight: 700;
}
.nb-word { font-family: "Cormorant Garamond", serif; font-size: 1.45rem; letter-spacing: .04em; }
.nb-nav { display: flex; gap: 1rem; align-items: center; }
.nb-nav a, .nb-drop-btn {
  text-decoration: none; background: none; border: 0; color: var(--ink-soft); cursor: pointer;
}
.nb-nav a.is-active, .nb-nav a:hover { color: var(--ink); }
.nb-drop { position: relative; }
.nb-drop-menu {
  display: none; position: absolute; top: 120%; left: 0; min-width: 12rem;
  background: var(--card); border: 1px solid var(--line); border-radius: var(--nb-radius);
  box-shadow: var(--shadow); padding: .5rem; z-index: 20;
}
.nb-drop:hover .nb-drop-menu, .nb-drop:focus-within .nb-drop-menu { display: grid; }
.nb-drop-menu a { padding: .4rem .6rem; text-decoration: none; border-radius: 8px; }
.nb-drop-menu a:hover { background: var(--bg-2); }
.nb-search { flex: 1; display: flex; max-width: 22rem; background: var(--card); border: 1px solid var(--line); border-radius: 999px; overflow: hidden; }
.nb-search input { flex: 1; border: 0; background: transparent; padding: .55rem 1rem; color: var(--ink); }
.nb-search button { border: 0; background: transparent; padding: 0 1rem; cursor: pointer; color: var(--ink); }
.nb-actions { display: flex; align-items: center; gap: .5rem; }
.nb-icon-btn, .nb-burger {
  border: 1px solid var(--line); background: var(--card); border-radius: 999px;
  width: 2.4rem; height: 2.4rem; display: grid; place-items: center; text-decoration: none; position: relative; cursor: pointer; color: var(--ink);
}
.nb-badge {
  position: absolute; top: -6px; right: -6px; background: var(--nb-secondary); color: #fff;
  font-size: .65rem; min-width: 1.1rem; height: 1.1rem; border-radius: 999px; display: grid; place-items: center;
}
.nb-btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .4rem;
  border-radius: var(--nb-radius); padding: .7rem 1.15rem; text-decoration: none; border: 1px solid transparent; cursor: pointer;
}
.nb-btn-solid { background: var(--nb-primary, #1c1917); color: #f7f1e7; }
.nb-btn-ghost { background: transparent; border-color: var(--line); }
.nb-btn-brass { background: var(--nb-secondary, #b45309); color: #fff; }
.nb-btn-sm { padding: .45rem .8rem; font-size: .88rem; }
.nb-mobile { display: none; flex-direction: column; padding: 1rem 1.25rem 1.25rem; gap: .7rem; border-top: 1px solid var(--line); }
.nb-bottom { display: none; }

.nb-footer { border-top: 1px solid var(--line); padding: 3rem 1.25rem 1.5rem; margin-top: 4rem; }
.nb-footer-grid { max-width: 1280px; margin: 0 auto; display: grid; grid-template-columns: 1.4fr 1fr 1fr 1.2fr; gap: 2rem; }
.nb-footer h2 { font-size: .78rem; letter-spacing: .16em; text-transform: uppercase; color: var(--ink-soft); }
.nb-footer a { display: block; text-decoration: none; margin: .3rem 0; color: var(--ink-soft); }
.nb-footer a:hover { color: var(--ink); }
.nb-muted { color: var(--ink-soft); }
.nb-copy { max-width: 1280px; margin: 2rem auto 0; color: var(--ink-soft); font-size: .85rem; }
.nb-news { display: flex; gap: .4rem; }
.nb-news input { flex: 1; border: 1px solid var(--line); background: var(--card); color: var(--ink); padding: .6rem .8rem; border-radius: 10px; }
.nb-news button { border: 0; background: var(--nb-primary); color: #fff; border-radius: 10px; padding: .6rem 1rem; cursor: pointer; }

.wrap { max-width: 1280px; margin: 0 auto; padding: 2rem 1.25rem; }
.section-kicker { letter-spacing: .2em; text-transform: uppercase; font-size: .72rem; color: var(--ink-soft); }
.section-title { font-family: "Fraunces", "Cormorant Garamond", serif; font-size: clamp(1.8rem, 3vw, 2.8rem); margin: .2rem 0 1.4rem; }
.book-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.4rem; }
.book-card { background: var(--card); border: 1px solid var(--line); border-radius: var(--nb-radius); overflow: hidden; box-shadow: var(--shadow); display: flex; flex-direction: column; }
.book-cover { position: relative; aspect-ratio: 3/4; background: var(--bg-2); display: block; }
.book-cover img { width: 100%; height: 100%; object-fit: cover; }
.book-fallback { width: 100%; height: 100%; display: grid; place-items: center; font-family: "Fraunces", serif; font-size: 4rem; }
.book-sale, .book-flag { position: absolute; top: .7rem; padding: .2rem .5rem; font-size: .72rem; border-radius: 999px; background: var(--nb-secondary); color: #fff; }
.book-flag { right: .7rem; top: .7rem; background: var(--ink); }
.book-sale { left: .7rem; }
.book-meta { padding: 1rem; display: flex; flex-direction: column; gap: .25rem; flex: 1; }
.book-author { font-size: .78rem; color: var(--ink-soft); letter-spacing: .08em; text-transform: uppercase; margin: 0; }
.book-meta h3 { font-family: "Fraunces", serif; font-size: 1.15rem; margin: 0; }
.book-meta h3 a { text-decoration: none; }
.book-price { display: flex; gap: .5rem; align-items: baseline; margin: .3rem 0 .6rem; }
.book-price s { color: var(--ink-soft); }

.hero { display: grid; grid-template-columns: 1.1fr .9fr; gap: 3rem; align-items: center; padding: 4rem 1.25rem; max-width: 1280px; margin: 0 auto; }
.hero h1 { font-family: "Fraunces", serif; font-size: clamp(2.6rem, 6vw, 5.4rem); line-height: .95; margin: .4rem 0 1rem; }
.hero-art { position: relative; }
.hero-art img { width: min(360px, 100%); margin: 0 auto; border-radius: 4px 18px 18px 4px; box-shadow: 30px 40px 80px rgba(28,25,23,.25); }
.cat-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; }
.cat-card { background: var(--card); border: 1px solid var(--line); border-radius: var(--nb-radius); padding: 1.4rem; text-decoration: none; min-height: 8rem; display: flex; flex-direction: column; justify-content: space-between; }
.benefits { display: grid; grid-template-columns: repeat(5, 1fr); gap: 1rem; }
.benefit { background: var(--bg-2); border-radius: var(--nb-radius); padding: 1.1rem; }
.quotes { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; }
.quote { background: var(--card); border: 1px solid var(--line); padding: 1.4rem; border-radius: var(--nb-radius); }

.form { display: grid; gap: .8rem; max-width: 28rem; }
.field { display: grid; gap: .3rem; }
.field label { font-size: .85rem; color: var(--ink-soft); }
.field input, .field textarea, .field select {
  border: 1px solid var(--line); background: var(--card); color: var(--ink);
  padding: .7rem .85rem; border-radius: 12px; width: 100%;
}
.field select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8'%3E%3Cpath d='M1 1l5 5 5-5' fill='none' stroke='%231c1917' stroke-width='1.6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
  padding-right: 2.4rem;
}
.alert { padding: .8rem 1rem; border-radius: 10px; margin: 1rem 0; }
.alert-err { background: #ffe4e6; color: #9f1239; }
.alert-ok { background: #dcfce7; color: #166534; }
[data-mode="dark"] .alert-err { background: #3f1d24; color: #fecdd3; }
[data-mode="dark"] .alert-ok { background: #14532d; color: #bbf7d0; }

.product-hero { display: grid; grid-template-columns: .9fr 1.1fr; gap: 3rem; }
.price-row { display: flex; align-items: baseline; gap: .8rem; font-size: 1.6rem; }
.meta-table { width: 100%; border-collapse: collapse; }
.meta-table td { padding: .45rem 0; border-bottom: 1px solid var(--line); }
.crumbs { font-size: .85rem; color: var(--ink-soft); margin-bottom: 1.2rem; }
.crumbs a { color: inherit; }

.toast { background: var(--card); border: 1px solid var(--line); box-shadow: var(--shadow); padding: .8rem 1rem; border-radius: 12px; margin: .4rem; }
.nb-toasts { position: fixed; right: 1rem; top: 5rem; z-index: 60; }
.toast-ok { border-left: 4px solid var(--ok); }
.toast-err { border-left: 4px solid var(--err); }

.pager { display: flex; gap: .4rem; justify-content: center; margin: 2rem 0; }
.pager a, .pager span { padding: .4rem .75rem; border: 1px solid var(--line); border-radius: 8px; text-decoration: none; }
.pager .is-on { background: var(--nb-primary); color: #fff; }

.empty { text-align: center; padding: 4rem 1rem; color: var(--ink-soft); }

.account-grid { display: grid; grid-template-columns: 240px minmax(0, 1fr); gap: 1.5rem; align-items: start; }
.acc-wrap { padding-top: 1.6rem; padding-bottom: 3rem; }
.acc-nav {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 20px;
  padding: 1.1rem 1rem 1rem;
  box-shadow: var(--shadow);
  position: sticky;
  top: 5.2rem;
}
.acc-who {
  display: flex;
  align-items: center;
  gap: .75rem;
  padding: .2rem .35rem 1rem;
  border-bottom: 1px solid var(--line);
  margin-bottom: .7rem;
}
.acc-who img, .acc-who span, .acc-avatar {
  width: 42px; height: 42px; border-radius: 50%;
  object-fit: cover; flex: 0 0 auto;
}
.acc-who span, .acc-avatar.is-fallback {
  display: grid; place-items: center;
  background: var(--ink); color: var(--bg);
  font-weight: 600; font-size: .9rem;
}
.acc-who strong { display: block; font-size: .95rem; }
.acc-who em { display: block; font-style: normal; color: var(--ink-soft); font-size: .78rem; overflow: hidden; text-overflow: ellipsis; max-width: 150px; }
.acc-nav nav { display: grid; gap: .2rem; }
.acc-nav nav a {
  display: block; padding: .55rem .7rem; border-radius: 10px;
  text-decoration: none; color: var(--ink-soft);
}
.acc-nav nav a:hover { background: var(--bg-2); color: var(--ink); }
.acc-nav nav a.is-on { background: var(--ink); color: var(--bg); font-weight: 600; }
.acc-signout {
  width: 100%; margin-top: .85rem;
  border: 1px solid var(--line); background: transparent; color: var(--ink-soft);
  border-radius: 10px; padding: .55rem; cursor: pointer; font: inherit;
}
.acc-signout:hover { color: var(--ink); }
.acc-head { margin-bottom: .3rem; }
.acc-head .section-title { margin-bottom: .35rem; }
.acc-head .nb-muted { margin: 0 0 1.2rem; }
.acc-main { min-width: 0; }
.acc-panel {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 1.1rem 1.15rem 1.2rem;
  box-shadow: 0 10px 30px rgba(28, 25, 23, .04);
  margin-top: 1rem;
}
.acc-panel-head {
  display: flex; justify-content: space-between; align-items: baseline; gap: 1rem;
  margin-bottom: .7rem;
}
.acc-panel-head h2 { font-family: "Fraunces", "Cormorant Garamond", serif; font-size: 1.25rem; margin: 0; }
.acc-panel-head a { font-size: .85rem; color: var(--ink-soft); text-decoration: none; }
.acc-panel-head a:hover { color: var(--ink); }
.acc-split { display: grid; grid-template-columns: 1.15fr .85fr; gap: 1rem; margin-top: 1rem; }
.acc-split > .acc-panel { margin-top: 0; }
.acc-empty {
  text-align: left;
  padding: 1.1rem 0 .3rem;
  color: var(--ink-soft);
}
.acc-empty p { margin: 0 0 .8rem; }
.acc-list { list-style: none; padding: 0; margin: 0; }
.acc-row {
  display: flex; align-items: center; gap: .8rem;
  padding: .7rem 0;
  border-bottom: 1px solid var(--line);
  text-decoration: none; color: inherit;
}
.acc-list li:last-child .acc-row { border-bottom: 0; }
.acc-row span { display: grid; gap: .15rem; min-width: 0; }
.acc-row b { font-size: .92rem; }
.acc-row small { color: var(--ink-soft); font-size: .78rem; }
.acc-row strong { margin-left: auto; font-size: .92rem; }
.acc-row.is-static { cursor: default; }
.acc-pill {
  display: inline-flex; align-items: center;
  padding: .12rem .5rem; border-radius: 999px;
  font-size: .72rem; text-transform: capitalize;
  background: var(--bg-2); color: var(--ink-soft);
  white-space: nowrap;
}
.acc-pill.paid, .acc-pill.verified { background: #dcfce7; color: #166534; }
.acc-pill.requires_action { background: #ffedd5; color: #9a3412; }
.acc-pill.failed, .acc-pill.cancelled, .acc-pill.refunded { background: #ffe4e6; color: #9f1239; }
.acc-shelf { display: grid; grid-template-columns: repeat(2, 1fr); gap: .7rem; }
.acc-shelf-item {
  display: flex; gap: .75rem; align-items: center;
  text-decoration: none; color: inherit;
  padding: .45rem; border-radius: 12px;
}
.acc-shelf-item:hover { background: var(--bg-2); }
.acc-shelf-cover {
  width: 48px; height: 64px; border-radius: 6px; overflow: hidden;
  background: var(--bg-2); flex: 0 0 auto;
}
.acc-shelf-cover img { width: 100%; height: 100%; object-fit: cover; display: block; }
.acc-shelf-item b { display: block; font-size: .92rem; }
.acc-shelf-item small { color: var(--ink-soft); }
.acc-recs { margin: 0; }
.acc-form { max-width: none; }
.acc-avatar-row { display: flex; gap: .9rem; align-items: center; }
.acc-avatar { width: 64px; height: 64px; border-radius: 50%; object-fit: cover; }
.acc-actions { display: flex; gap: .4rem; flex-wrap: wrap; margin-top: .4rem; }
.acc-table-wrap { overflow: auto; }
.acc-totals { margin: 1rem 0 0; }

.side a { display: block; padding: .5rem 0; text-decoration: none; color: var(--ink-soft); }
.side a.is-on { color: var(--ink); font-weight: 600; }
.stat-row { display: grid; grid-template-columns: repeat(4, 1fr); gap: .8rem; }
.stat { background: var(--card); border: 1px solid var(--line); border-radius: 16px; padding: 1rem 1.05rem; }
.stat p { margin: 0; color: var(--ink-soft); font-size: .75rem; letter-spacing: .06em; text-transform: uppercase; }
.stat strong { display: block; margin-top: .4rem; font-size: 1.35rem; }
.table { width: 100%; border-collapse: collapse; }
.table th, .table td { text-align: left; padding: .7rem; border-bottom: 1px solid var(--line); font-size: .92rem; }

.cart-wrap { padding-bottom: 3rem; }
.cart-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(280px, .8fr);
  gap: 1.2rem;
  align-items: start;
}
.cart-lines { padding: 0; overflow: hidden; }
.cart-line {
  display: grid;
  grid-template-columns: 88px minmax(0, 1fr) auto;
  gap: 1rem;
  padding: 1.05rem 1.15rem;
  border-bottom: 1px solid var(--line);
  align-items: start;
}
.cart-line:last-child { border-bottom: 0; }
.cart-cover {
  display: block;
  width: 88px;
  aspect-ratio: 3/4;
  border-radius: 8px;
  overflow: hidden;
  background: var(--bg-2);
}
.cart-cover img { width: 100%; height: 100%; object-fit: cover; display: block; }
.cart-info h2 { font-family: "Fraunces", "Cormorant Garamond", serif; font-size: 1.2rem; margin: 0 0 .15rem; }
.cart-info h2 a { text-decoration: none; }
.cart-info .nb-muted { margin: 0; }
.cart-meta { margin: .35rem 0 .5rem; font-size: .8rem; color: var(--ink-soft); }
.cart-remove {
  border: 0; background: none; padding: 0; cursor: pointer;
  color: var(--ink-soft); font: inherit; font-size: .82rem; text-decoration: underline;
  text-underline-offset: 3px;
}
.cart-remove:hover { color: var(--ink); }
.cart-price { font-size: 1.05rem; padding-top: .15rem; }
.cart-summary { position: sticky; top: 5.2rem; }
.cart-summary > h2 { font-family: "Fraunces", "Cormorant Garamond", serif; font-size: 1.25rem; margin: 0 0 1rem; }
.cart-coupon { display: flex; gap: .4rem; margin-bottom: .7rem; }
.cart-coupon input {
  flex: 1; min-width: 0;
  border: 1px solid var(--line); background: var(--bg); color: inherit;
  border-radius: 12px; padding: .7rem .85rem;
}
.cart-coupon button {
  border: 0; background: var(--nb-primary, #1c1917); color: #f7f1e7;
  border-radius: 12px; padding: .7rem 1rem; cursor: pointer; font: inherit;
}
.cart-coupon-on {
  display: flex; align-items: center; justify-content: space-between;
  margin: 0 0 .9rem;
}
.cart-coupon-on button {
  border: 0; background: none; color: var(--ink-soft); cursor: pointer; font: inherit; font-size: .82rem;
}
.cart-totals { margin: 0 0 1.1rem; }
.cart-totals div {
  display: flex; justify-content: space-between; gap: 1rem;
  padding: .45rem 0; border-bottom: 1px solid var(--line);
}
.cart-totals dt { color: var(--ink-soft); }
.cart-totals dd { margin: 0; }
.cart-totals .is-total { border-bottom: 0; padding-top: .7rem; font-size: 1.1rem; font-weight: 600; }
.cart-checkout { width: 100%; }
.cart-note { margin: .75rem 0 1rem; font-size: .82rem; }
.cart-foot {
  display: flex; justify-content: space-between; gap: .7rem; align-items: center;
  padding-top: .4rem; border-top: 1px solid var(--line);
}
.cart-foot a, .cart-foot button {
  border: 0; background: none; padding: 0; cursor: pointer;
  color: var(--ink-soft); font: inherit; font-size: .85rem; text-decoration: none;
}
.cart-foot a:hover, .cart-foot button:hover { color: var(--ink); }

@media (max-width: 980px) {
  .hero, .product-hero, .nb-footer-grid, .book-grid, .benefits, .quotes, .cat-grid, .stat-row {
    grid-template-columns: 1fr 1fr;
  }
  .account-grid, .cart-grid { grid-template-columns: 1fr; }
  .cart-summary { position: static; }
  .acc-nav { position: static; display: flex; flex-wrap: wrap; gap: .5rem; align-items: center; }
  .acc-who { border: 0; margin: 0; padding: 0 .4rem 0 0; }
  .acc-nav nav { display: flex; flex-wrap: wrap; gap: .25rem; flex: 1; }
  .acc-signout { width: auto; margin: 0; }
  .acc-split, .acc-shelf { grid-template-columns: 1fr; }
  .nb-nav, .nb-search { display: none; }
  .nb-burger { display: grid; }
  .book-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 720px) {
  .hero, .product-hero, .nb-footer-grid, .benefits, .quotes, .cat-grid, .stat-row, .book-grid {
    grid-template-columns: 1fr;
  }
  .cart-line { grid-template-columns: 72px minmax(0, 1fr); }
  .cart-price { grid-column: 2; justify-self: start; padding-top: 0; }
  .nb-header .nb-btn-ghost { display: none; }
  .nb-bottom {
    display: grid; grid-template-columns: repeat(4, 1fr);
    position: sticky; bottom: 0; background: var(--card); border-top: 1px solid var(--line);
    padding: .6rem; text-align: center; z-index: 30;
  }
  .nb-bottom a { text-decoration: none; font-size: .78rem; color: var(--ink-soft); }
  body.nb-body { padding-bottom: 3.5rem; }
}
@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; }
}
.nb-burger { display: none; }
@media (max-width: 980px) { .nb-burger { display: grid; } }