@font-face {
  font-family: "PT Serif";
  src: url("../fonts/PTSerif-Regular.ttf") format("truetype");
  font-style: normal;
  font-weight: 400;
  font-display: swap;
}
@font-face {
  font-family: "PT Serif";
  src: url("../fonts/PTSerif-Bold.ttf") format("truetype");
  font-style: normal;
  font-weight: 700;
  font-display: swap;
}
:root {
  --paper: #f4f1e9;
  --ink: #23251f;
  --muted: #65665e;
  --line: #cecec2;
  --accent: #f0cb37;
  --dark: #20251f;
  --serif: "PT Serif", Georgia, serif;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, sans-serif;
  --width: 1160px;
  --section-space: clamp(60px, 7vw, 100px);
}
* {
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
  scroll-padding-top: 24px;
}
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font: 16px/1.65 var(--sans);
}
button,
input {
  font: inherit;
}
a {
  color: inherit;
  text-underline-offset: 5px;
}
a:hover {
  text-decoration-thickness: 2px;
}
button {
  cursor: pointer;
}
button[aria-disabled="true"] {
  cursor: progress;
  opacity: 0.7;
}
::selection {
  background: var(--accent);
  color: var(--ink);
}
:focus-visible {
  outline: 3px solid #946c00;
  outline-offset: 5px;
}
h1,
h2,
h3,
p,
figure,
blockquote,
dl {
  margin: 0;
}
h1,
h2 {
  font-family: var(--serif);
  font-weight: 400;
}
h2 {
  font-size: clamp(30px, 3.6vw, 44px);
  line-height: 1.2;
  letter-spacing: -0.025em;
}
h3 {
  font-size: 19px;
  line-height: 1.35;
  font-weight: 600;
}
p + p {
  margin-top: 18px;
}
img {
  display: block;
  max-width: 100%;
  height: auto;
}
.wrap {
  width: min(var(--width), calc(100% - 96px));
  margin-inline: auto;
}
.skip-link {
  position: absolute;
  top: 10px;
  left: 12px;
  padding: 10px 18px;
  background: var(--ink);
  color: white;
  transform: translateY(-180%);
  z-index: 10;
}
.skip-link:focus {
  transform: translateY(0);
}
.header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 30px;
  min-height: 99px;
  border-bottom: 1px solid var(--line);
}
.wordmark {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 600;
  text-decoration: none;
}
.brand-mark {
  display: grid;
  place-items: center;
  width: 29px;
  height: 29px;
  background: var(--accent);
  font-size: 25px;
  line-height: 1;
}
.header nav {
  display: flex;
  gap: 28px;
  font-size: 13px;
}
.header nav a {
  text-decoration: none;
  padding-block: 10px;
}
.header nav a:hover {
  text-decoration: underline;
}
.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.5fr) minmax(0, 1fr);
  gap: 70px;
  padding-block: 70px 66px;
  align-items: center;
}
.eyebrow {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  line-height: 1.6;
  margin-bottom: 23px;
}
h1 {
  font-size: clamp(56px, 6.3vw, 85px);
  line-height: 1.04;
  letter-spacing: -0.025em;
}
.title-dot {
  color: #977400;
}
.subtitle {
  font-family: var(--serif);
  font-size: clamp(20px, 2.1vw, 26px);
  line-height: 1.45;
  margin-top: 24px;
}
.hero-description {
  color: var(--muted);
  max-width: 520px;
  margin-top: 23px;
}
.purchase-actions {
  margin-top: 30px;
}
.actions {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 20px 26px;
}
.button {
  display: inline-flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 15px 21px;
  border: 1px solid transparent;
  border-radius: 2px;
  min-height: 54px;
  font-weight: 600;
  font-size: 14px;
  line-height: 1.5;
}
.button-primary {
  color: var(--ink);
  background: var(--accent);
  text-decoration: none;
}
.button-primary:hover {
  background: #ffdc4d;
  border-color: #8d7526;
}
.button-price {
  border-left: 1px solid #9a822c;
  padding-left: 17px;
  white-space: nowrap;
}
.text-link {
  font-size: 13px;
  font-weight: 500;
  display: inline-flex;
  align-items: center;
  gap: 10px;
}
.text-link:has(.link-label) {
  text-decoration: none;
}
.text-link .link-label {
  text-decoration: underline;
  text-underline-offset: 5px;
}
.text-link:hover .link-label {
  text-decoration-thickness: 2px;
}
.payment-status {
  font-size: 12px;
  margin-top: 12px;
  color: var(--muted);
  min-height: 2em;
}
.no-script {
  font-size: 13px;
  margin-top: 10px;
}
.book-facts {
  display: flex;
  gap: 28px;
  margin-top: 28px;
  padding-top: 23px;
  border-top: 1px solid var(--line);
}
.book-facts dt {
  font-weight: 600;
  font-size: 14px;
  white-space: nowrap;
}
.book-facts dd {
  margin: 3px 0 0;
  color: var(--muted);
  font-size: 11px;
}
.hero-cover {
  width: min(100%, 340px);
  justify-self: center;
}
.hero-cover img {
  box-shadow: 0 18px 35px -20px #29261e80;
}
.hero-cover figcaption {
  display: flex;
  gap: 10px;
  align-items: center;
  justify-content: center;
  font-size: 11px;
  color: var(--muted);
  margin-top: 27px;
}
.small-line {
  display: inline-block;
  width: 18px;
  border-top: 1px solid var(--muted);
}
.section {
  padding-block: var(--section-space);
  border-top: 1px solid var(--line);
}
.benefits {
  display: grid;
  grid-template-columns: 1fr 1.05fr;
  gap: 100px;
}
.section-intro > p:not(.eyebrow) {
  margin-top: 24px;
}
.quiet {
  color: var(--muted);
  font-size: 14px;
}
.benefit-list article {
  display: flex;
  gap: 23px;
  padding-block: 22px;
  border-bottom: 1px solid var(--line);
}
.benefit-list article:first-child {
  padding-top: 0;
}
.benefit-list article:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}
.index {
  font-family: var(--serif);
  color: var(--muted);
  font-size: 14px;
  margin-top: 3px;
}
.benefit-list p {
  font-size: 14px;
  color: var(--muted);
  margin-top: 9px;
}
.section-heading {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 30px;
}
.side-note {
  font-size: 12px;
  color: var(--muted);
}
.parts {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin-top: 45px;
}
.part {
  padding: 0 30px;
  border-left: 1px solid var(--line);
}
.part:first-child {
  border: 0;
  padding-left: 0;
}
.part:last-child {
  padding-right: 0;
}
.part-number {
  font-size: 11px;
  letter-spacing: 0.05em;
  font-weight: 600;
  text-transform: uppercase;
  display: flex;
  justify-content: space-between;
  gap: 12px;
}
.part-number span {
  color: var(--muted);
  font-weight: 400;
  white-space: nowrap;
  text-transform: none;
  letter-spacing: 0;
}
.part h3 {
  font-family: var(--serif);
  font-size: 25px;
  font-weight: 400;
  margin-top: 23px;
  min-height: 68px;
}
.part > p:last-child {
  color: var(--muted);
  font-size: 14px;
  margin-top: 15px;
}
details {
  border-block: 1px solid var(--line);
}
summary {
  padding-block: 19px;
  font-weight: 500;
  font-size: 14px;
  cursor: pointer;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
}
summary::-webkit-details-marker {
  display: none;
}
.disclosure-icon {
  width: 14px;
  height: 14px;
  flex-shrink: 0;
  position: relative;
}
.disclosure-icon::before,
.disclosure-icon::after {
  content: "";
  position: absolute;
  background: currentColor;
}
.disclosure-icon::before {
  width: 14px;
  height: 1px;
  top: 6px;
  left: 0;
}
.disclosure-icon::after {
  height: 14px;
  width: 1px;
  left: 6px;
  top: 0;
}
details[open] > summary .disclosure-icon::after {
  display: none;
}
.toc {
  margin-top: 36px;
}
.toc-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 32px;
  padding-block: 10px 30px;
}
.toc-grid h3 {
  font-size: 14px;
}
.toc-grid ol {
  padding-left: 24px;
  font-size: 13px;
  color: var(--muted);
}
.toc-grid li {
  padding: 4px 0 4px 3px;
}
.preview-strip {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 40px;
  margin-top: 35px;
}
.preview-strip h3 {
  font-size: 16px;
}
.preview-strip p {
  font-size: 13px;
  color: var(--muted);
  max-width: 650px;
  margin-top: 9px;
}
.preview-strip > a {
  flex-shrink: 0;
}
.featured-quote {
  display: grid;
  grid-template-columns: minmax(0, 2.2fr) minmax(0, 1fr);
  gap: 70px;
  margin-top: 38px;
  padding: 33px 0;
  border-block: 1px solid var(--line);
}
.featured-quote blockquote {
  font-family: var(--serif);
  font-size: clamp(22px, 2.5vw, 31px);
  line-height: 1.5;
  letter-spacing: -0.02em;
}
.featured-quote .review-details[open] blockquote {
  font-size: clamp(16px, 2.5vw, 20px);
}
.featured-quote figcaption {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: flex-start;
  font-size: 14px;
}
.featured-quote figcaption > span {
  font-size: 12px;
  color: var(--muted);
  margin-top: 4px;
}
.featured-quote .text-link {
  margin-top: 18px;
}
.reader-quotes {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  padding-top: 30px;
}
.reader-quotes blockquote {
  font-size: 14px;
}
.reader-quotes figcaption {
  display: flex;
  gap: 18px;
  flex-wrap: wrap;
  margin-top: 17px;
  font-size: 12px;
}
.reader-quotes figcaption a {
  color: var(--muted);
}
.review-details {
  border: 0;
}
.review-details > summary {
  display: block;
  padding: 0;
  font-weight: 400;
}
.featured-quote .review-excerpt {
  font-family: var(--serif);
  font-size: clamp(22px, 2.5vw, 31px);
  line-height: 1.5;
  letter-spacing: -0.02em;
}
.review-excerpt {
  display: block;
}
.review-toggle {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  margin-top: 17px;
  font: 500 12px/1.65 var(--sans);
}
.review-toggle > span:not(.disclosure-icon) {
  text-decoration: underline;
  text-underline-offset: 5px;
}
.review-details .when-open {
  display: none;
}
.review-details[open] .when-closed,
.review-details[open] .review-excerpt {
  display: none;
}
.review-details[open] .when-open {
  display: inline;
}
.review-details[open] .review-toggle {
  margin-top: 0;
}
.review-details > blockquote {
  margin-top: 18px;
}
.author {
  display: grid;
  grid-template-columns: 1fr 1.05fr;
  gap: 100px;
}
.author-label {
  margin-top: 21px;
  color: var(--muted);
  font-size: 12px;
}
.author-copy {
  font-size: 15px;
}
.author-links {
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
  margin-top: 24px;
}
.purchase-section {
  background: var(--dark);
  color: var(--paper);
  padding-block: var(--section-space);
}
.purchase-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  column-gap: 100px;
}
.purchase-copy h2 {
  font-size: clamp(36px, 4vw, 52px);
}
.purchase-copy > p:not(.eyebrow) {
  color: #c6c9bc;
  font-size: 14px;
  margin-top: 25px;
  max-width: 400px;
}
.purchase-copy .format-note {
  font-size: 12px;
}
.checkout {
  align-self: center;
  border-top: 1px solid #626859;
  border-bottom: 1px solid #626859;
  padding-block: 28px;
}
.checkout-label {
  font-family: var(--serif);
  font-size: 20px;
}
.price {
  font-family: var(--serif);
  font-size: 64px;
  letter-spacing: -0.04em;
  line-height: 1.2;
  margin-top: 16px;
}
.price span {
  font-size: 38px;
}
.checkout-description {
  color: #c6c9bc;
  font-size: 12px;
  margin-top: 8px;
}
.checkout .button {
  width: 100%;
  margin-top: 23px;
}
.checkout .payment-status {
  color: #c6c9bc;
}
.checkout > a {
  margin-top: 10px;
}
.faq {
  grid-column: 1 / -1;
  margin-top: 50px;
}
.faq details {
  border-color: #626859;
  border-bottom: 0;
}
.faq details:last-child {
  border-bottom: 1px solid #626859;
}
.faq details p {
  padding-bottom: 24px;
  color: #c6c9bc;
  font-size: 14px;
  max-width: 800px;
}
.purchase-section :focus-visible {
  outline-color: var(--accent);
}
.purchase-section .button:focus-visible {
  outline-color: white;
}
.footer {
  padding-block: 32px;
}
.footer-top {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  font-size: 12px;
}
.disclaimer {
  font-size: 11px;
  color: var(--muted);
  max-width: 850px;
  margin-top: 19px;
}
/* Плавное раскрытие нативных details; без поддержки остаётся обычное переключение. */
@supports (interpolate-size: allow-keywords) and
  selector(details::details-content) {
  :is(.review-details, .faq details) {
    interpolate-size: allow-keywords;
  }
  :is(.review-details, .faq details)::details-content {
    block-size: 0;
    opacity: 0;
    overflow: clip;
    transition:
      block-size 240ms ease,
      opacity 180ms ease,
      content-visibility 240ms allow-discrete;
  }
  :is(.review-details, .faq details)[open]::details-content {
    block-size: auto;
    opacity: 1;
  }
}
@media (max-width: 1100px) {
  .wrap {
    width: calc(100% - 64px);
  }
  .hero {
    gap: 40px;
  }
  .benefits,
  .author,
  .purchase-grid {
    gap: 50px;
  }
  .book-facts {
    gap: 18px;
  }
  .part {
    padding-inline: 20px;
  }
  .featured-quote {
    gap: 40px;
  }
  .desktop-break {
    display: none;
  }
}
@media (max-width: 760px) {
  .wrap {
    width: calc(100% - 40px);
  }
  .header {
    min-height: 78px;
  }
  .wordmark {
    font-size: 13px;
    gap: 8px;
  }
  .header nav {
    gap: 15px;
  }
  .header nav a {
    font-size: 12px;
  }
  .header nav a:not(:last-child) {
    display: none;
  }
  .hero {
    grid-template-columns: 1fr;
    gap: 40px;
    padding-block: 42px 50px;
  }
  .eyebrow {
    font-size: 10px;
    margin-bottom: 19px;
  }
  h1 {
    font-size: clamp(50px, 9.5vw, 70px);
  }
  .subtitle {
    font-size: 22px;
  }
  .hero-description {
    font-size: 15px;
  }
  .actions {
    gap: 20px;
  }
  .hero-cover {
    width: min(68vw, 310px);
  }
  .book-facts {
    flex-wrap: wrap;
    gap: 18px 25px;
  }
  .hero-cover figcaption {
    margin-top: 20px;
  }
  .benefits,
  .author {
    grid-template-columns: 1fr;
    gap: 35px;
  }
  .section-heading {
    display: block;
  }
  .side-note {
    margin-top: 18px;
  }
  .parts {
    grid-template-columns: 1fr;
    margin-top: 28px;
  }
  .part,
  .part:first-child,
  .part:last-child {
    padding: 25px 0;
    border: 0;
    border-top: 1px solid var(--line);
  }
  .part h3 {
    min-height: 0;
    margin-top: 13px;
    font-size: 25px;
  }
  .part h3 br {
    display: none;
  }
  .part > p:last-child {
    margin-top: 12px;
  }
  .toc {
    margin-top: 5px;
  }
  .toc-grid {
    grid-template-columns: 1fr;
    gap: 15px;
  }
  .preview-strip {
    display: block;
    margin-top: 25px;
  }
  .preview-strip > a {
    margin-top: 18px;
  }
  .featured-quote {
    grid-template-columns: 1fr;
    gap: 25px;
    margin-top: 28px;
    padding-block: 26px;
  }
  .reader-quotes {
    grid-template-columns: 1fr;
    gap: 27px;
  }
  .purchase-grid {
    grid-template-columns: 1fr;
    gap: 35px;
  }
  .purchase-copy h2 {
    font-size: 42px;
  }
  .faq {
    margin-top: 0;
  }
  .footer-top {
    flex-direction: column;
    gap: 10px;
  }
}
@media (max-width: 380px) {
  .wrap {
    width: calc(100% - 32px);
  }
  .header nav a {
    font-size: 11px;
  }
  .brand-mark {
    width: 24px;
    height: 24px;
  }
  .button {
    padding-inline: 16px;
    gap: 14px;
  }
}
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  :is(.review-details, .faq details)::details-content {
    transition: none;
  }
}