:root {
  --ink: #102b3c;
  --ink-soft: #284659;
  --navy: #16384a;
  --navy-deep: #0d293a;
  --paper: #f8f6f1;
  --paper-deep: #eee9df;
  --white: #fffefa;
  --gold: #bd8d51;
  --gold-light: #ead9bb;
  --teal: #4d8f90;
  --muted: #60727b;
  --line: rgba(16, 43, 60, 0.12);
  --mist: #dceceb;
  --pearl: #f2e8dc;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 96px;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: Arial, Helvetica, sans-serif;
  text-rendering: optimizeLegibility;
}

a {
  color: inherit;
  text-decoration: none;
}

button,
a,
summary {
  -webkit-tap-highlight-color: transparent;
}

::selection {
  color: var(--white);
  background: var(--teal);
}

.announcement {
  min-height: 34px;
  padding: 8px 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 14px;
  border-bottom: 1px solid rgba(16, 43, 60, 0.07);
  background: linear-gradient(90deg, #e2efed 0%, #f6eee4 52%, #e6f1ef 100%);
  color: #385565;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.announcement-dot {
  width: 3px;
  height: 3px;
  border-radius: 99px;
  background: var(--teal);
}

.site-header {
  position: sticky;
  z-index: 50;
  top: 0;
  min-height: 78px;
  padding: 0 clamp(22px, 5vw, 78px);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  border-bottom: 1px solid rgba(16, 43, 60, 0.09);
  background: rgba(255, 254, 250, 0.88);
  color: var(--ink);
  box-shadow: 0 8px 30px rgba(39, 61, 70, 0.035);
  backdrop-filter: blur(22px) saturate(145%);
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand-mark {
  width: 38px;
  height: 38px;
  display: grid;
  place-items: center;
  border: 1px solid rgba(77, 143, 144, 0.42);
  border-radius: 12px;
  background: linear-gradient(145deg, #ffffff, #e7f1ef);
  color: var(--navy);
  box-shadow: 0 8px 20px rgba(57, 100, 105, 0.09);
  font-family: Georgia, "Times New Roman", serif;
  font-size: 15px;
  letter-spacing: 0.08em;
}

.brand strong,
.brand small {
  display: block;
}

.brand strong {
  font-size: 13px;
  letter-spacing: 0.03em;
}

.brand small {
  margin-top: 2px;
  color: #74838a;
  font-size: 10px;
  letter-spacing: 0.04em;
}

.desktop-nav {
  display: flex;
  align-items: center;
  gap: clamp(20px, 3vw, 42px);
  margin-left: auto;
}

.desktop-nav a {
  position: relative;
  color: #5e7078;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.07em;
}

.desktop-nav a::after {
  position: absolute;
  right: 0;
  bottom: -9px;
  left: 0;
  height: 1px;
  content: "";
  background: var(--gold);
  transform: scaleX(0);
  transition: transform 180ms ease;
}

.desktop-nav a:hover,
.desktop-nav a:focus-visible {
  color: var(--ink);
}

.desktop-nav a:hover::after,
.desktop-nav a:focus-visible::after {
  transform: scaleX(1);
}

.nav-cta {
  padding: 12px 18px;
  border: 1px solid var(--navy);
  border-radius: 999px;
  color: var(--navy);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  transition: 180ms ease;
}

.nav-cta:hover,
.nav-cta:focus-visible {
  background: var(--navy);
  color: white;
}

.hero {
  position: relative;
  min-height: min(880px, calc(100vh - 34px));
  padding: clamp(64px, 7vw, 108px) clamp(24px, 5vw, 82px) clamp(70px, 7vw, 108px);
  display: grid;
  grid-template-columns: minmax(420px, 0.82fr) minmax(650px, 1.18fr);
  align-items: center;
  gap: clamp(38px, 5vw, 82px);
  overflow: hidden;
  background:
    radial-gradient(circle at 7% 12%, rgba(255, 255, 255, 0.96), transparent 31%),
    radial-gradient(circle at 83% 28%, rgba(190, 221, 216, 0.72), transparent 34%),
    radial-gradient(circle at 69% 100%, rgba(244, 220, 195, 0.48), transparent 36%),
    linear-gradient(120deg, #fbfaf7 0%, #f6f4ee 37%, #eaf3f1 100%);
  color: var(--ink);
}

.hero::before {
  position: absolute;
  inset: 0;
  content: "";
  opacity: 0.4;
  background-image:
    linear-gradient(rgba(16, 43, 60, 0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(16, 43, 60, 0.025) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: linear-gradient(to right, transparent, black 70%, transparent);
}

.hero-glow {
  position: absolute;
  border-radius: 50%;
  filter: blur(1px);
  pointer-events: none;
}

.hero-glow-one {
  top: -14%;
  right: 26%;
  width: 520px;
  height: 520px;
  background: rgba(255, 255, 255, 0.45);
  filter: blur(80px);
}

.hero-glow-two {
  left: 4%;
  bottom: -18%;
  width: 390px;
  height: 390px;
  background: rgba(234, 217, 187, 0.52);
  filter: blur(95px);
}

.hero-copy,
.hero-visual {
  position: relative;
  z-index: 2;
}

.eyebrow,
.section-kicker {
  margin: 0 0 25px;
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--teal);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.19em;
  text-transform: uppercase;
}

.eyebrow {
  color: var(--teal);
}

.eyebrow span {
  width: 32px;
  height: 1px;
  background: var(--teal);
}

.hero h1 {
  max-width: 690px;
  margin: 0;
  color: var(--ink);
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(56px, 5.3vw, 86px);
  font-weight: 400;
  letter-spacing: -0.052em;
  line-height: 0.94;
}

.hero h1 em {
  color: var(--teal);
  font-weight: 400;
}

.hero-subtitle {
  max-width: 610px;
  margin: 27px 0 0;
  color: var(--ink-soft);
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(21px, 1.8vw, 29px);
  font-style: italic;
  line-height: 1.25;
}

.hero-lead {
  max-width: 630px;
  margin: 22px 0 0;
  color: #526874;
  font-size: clamp(15px, 1.2vw, 18px);
  line-height: 1.75;
}

.hero-pills {
  margin-top: 27px;
  display: flex;
  flex-wrap: wrap;
  gap: 9px;
}

.hero-pills span {
  padding: 9px 12px;
  border: 1px solid rgba(255, 255, 255, 0.13);
  background: rgba(255, 255, 255, 0.035);
  color: rgba(255, 255, 255, 0.69);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.06em;
}

.hero-actions {
  margin-top: 34px;
  display: flex;
  align-items: center;
  gap: 28px;
}

.primary-button {
  min-width: 315px;
  padding: 17px 20px;
  display: grid;
  grid-template-columns: 1fr auto auto;
  align-items: center;
  gap: 15px;
  border-radius: 999px;
  background: var(--navy);
  color: white;
  box-shadow: 0 16px 38px rgba(16, 43, 60, 0.16);
  transition: 180ms ease;
}

.primary-button span:first-child {
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.04em;
}

.primary-button strong {
  font-family: Georgia, "Times New Roman", serif;
  color: #d8edeb;
  font-size: 15px;
  white-space: nowrap;
}

.button-arrow {
  font-size: 21px;
  transition: transform 180ms ease;
}

.primary-button:hover,
.primary-button:focus-visible {
  background: var(--teal);
  transform: translateY(-2px);
}

.primary-button:hover .button-arrow,
.primary-button:focus-visible .button-arrow {
  transform: translateX(4px);
}

.text-link {
  padding: 9px 0;
  border-bottom: 1px solid rgba(16, 43, 60, 0.25);
  color: var(--ink-soft);
  font-size: 12px;
  font-weight: 700;
}

.text-link span {
  margin-left: 7px;
  color: var(--teal);
}

.hero-assurance {
  margin-top: 22px;
  display: flex;
  flex-wrap: wrap;
  gap: 11px 18px;
  color: #657780;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.035em;
}

.hero-assurance span {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.hero-assurance i {
  width: 17px;
  height: 17px;
  display: inline-grid;
  place-items: center;
  border-radius: 50%;
  background: rgba(77, 143, 144, 0.12);
  color: var(--teal);
  font-size: 9px;
  font-style: normal;
}

.hero-library {
  position: relative;
  z-index: 3;
  min-width: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.hero-product {
  position: relative;
  min-width: 0;
  padding: 15px;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.84);
  border-radius: 28px;
  background: rgba(255, 255, 255, 0.62);
  box-shadow:
    0 28px 70px rgba(44, 75, 82, 0.12),
    inset 0 0 0 1px rgba(16, 43, 60, 0.035);
  backdrop-filter: blur(18px) saturate(120%);
}

.hero-product-rebt {
  margin-top: 48px;
}

.hero-product-badge {
  position: absolute;
  z-index: 5;
  top: 26px;
  left: 26px;
  padding: 8px 11px;
  border: 1px solid rgba(255, 255, 255, 0.72);
  border-radius: 999px;
  background: rgba(255, 254, 250, 0.8);
  color: #49616c;
  box-shadow: 0 7px 20px rgba(31, 57, 68, 0.07);
  font-size: 8px;
  font-weight: 800;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  backdrop-filter: blur(12px);
}

.hero-product-stage {
  position: relative;
  height: clamp(340px, 30vw, 465px);
  display: grid;
  place-items: center;
  overflow: hidden;
  border-radius: 20px;
  background:
    radial-gradient(circle at 72% 18%, rgba(255, 255, 255, 0.92), transparent 28%),
    linear-gradient(155deg, #e6f1ef 0%, #f5eee4 100%);
}

.hero-product-rebt .hero-product-stage {
  background:
    radial-gradient(circle at 72% 22%, rgba(255, 255, 255, 0.9), transparent 30%),
    linear-gradient(155deg, #f2e8dd 0%, #e1efed 100%);
}

.hero-product-stage::after {
  position: absolute;
  right: 12%;
  bottom: 6%;
  left: 12%;
  height: 28px;
  content: "";
  border-radius: 50%;
  background: rgba(28, 53, 63, 0.17);
  filter: blur(18px);
}

.hero-product-aura {
  position: absolute;
  width: 270px;
  height: 270px;
  border: 1px solid rgba(77, 143, 144, 0.19);
  border-radius: 50%;
  box-shadow:
    0 0 0 38px rgba(255, 255, 255, 0.12),
    0 0 0 76px rgba(255, 255, 255, 0.08);
}

.hero-product-stage img {
  position: relative;
  z-index: 2;
  width: 115%;
  max-width: 420px;
  max-height: 105%;
  object-fit: contain;
  filter: drop-shadow(18px 24px 22px rgba(24, 43, 51, 0.2));
  transform: translateY(17px);
  transition: transform 420ms cubic-bezier(.2,.7,.2,1);
}

.hero-product-rebt .hero-product-stage img {
  width: 108%;
}

.hero-product:hover .hero-product-stage img {
  transform: translateY(7px) scale(1.025);
}

.hero-product-info {
  min-height: 149px;
  padding: 20px 9px 6px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 18px;
}

.hero-product-info p {
  margin: 0 0 7px;
  color: var(--teal);
  font-size: 8px;
  font-weight: 800;
  letter-spacing: 0.095em;
  text-transform: uppercase;
}

.hero-product-info h2 {
  margin: 0;
  color: var(--ink);
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(20px, 1.8vw, 27px);
  font-weight: 400;
  letter-spacing: -0.03em;
  line-height: 1.05;
}

.hero-product-buy {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.hero-product-buy strong {
  color: var(--ink);
  font-family: Georgia, "Times New Roman", serif;
  font-size: 22px;
  font-weight: 400;
  white-space: nowrap;
}

.hero-product-buy small {
  color: #73838a;
  font-family: Arial, Helvetica, sans-serif;
  font-size: 8px;
  font-weight: 800;
  letter-spacing: 0.08em;
}

.hero-product-buy a {
  padding: 11px 14px;
  border-radius: 999px;
  background: var(--navy);
  color: white;
  font-size: 9px;
  font-weight: 800;
  letter-spacing: 0.055em;
  text-transform: uppercase;
  transition: 180ms ease;
}

.hero-product-buy a:hover,
.hero-product-buy a:focus-visible {
  background: var(--teal);
  transform: translateY(-2px);
}

.book-mockup {
  position: relative;
  z-index: 3;
  width: min(100%, 570px);
  height: auto;
  filter: drop-shadow(34px 42px 35px rgba(0, 0, 0, 0.48));
  animation: book-float 7s ease-in-out infinite;
}

@keyframes book-float {
  0%, 100% { transform: translateY(0) rotate(0.1deg); }
  50% { transform: translateY(-11px) rotate(-0.15deg); }
}

.book-halo {
  position: absolute;
  z-index: 0;
  width: 70%;
  height: 70%;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(46, 150, 153, 0.19), transparent 66%);
  filter: blur(20px);
}

.orbit {
  position: absolute;
  z-index: 0;
  border: 1px solid rgba(202, 164, 100, 0.16);
  border-radius: 50%;
}

.orbit::after {
  position: absolute;
  top: 50%;
  right: -4px;
  width: 7px;
  height: 7px;
  content: "";
  border-radius: 50%;
  background: var(--gold);
  box-shadow: 0 0 18px rgba(202, 164, 100, 0.8);
}

.orbit-one {
  width: 550px;
  height: 550px;
  transform: rotate(-20deg);
}

.orbit-two {
  width: 410px;
  height: 410px;
  transform: rotate(36deg);
}

.edition-seal {
  position: absolute;
  z-index: 4;
  right: 0;
  bottom: 13%;
  width: 100px;
  height: 100px;
  padding: 15px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(202, 164, 100, 0.72);
  border-radius: 50%;
  background: rgba(4, 18, 31, 0.86);
  color: var(--gold-light);
  text-align: center;
  backdrop-filter: blur(10px);
}

.edition-seal strong {
  font-family: Georgia, "Times New Roman", serif;
  font-size: 27px;
}

.edition-seal span {
  margin-top: 2px;
  font-size: 8px;
  font-weight: 800;
  letter-spacing: 0.11em;
  line-height: 1.4;
  text-transform: uppercase;
}

.fact-strip {
  padding: 0 clamp(24px, 8vw, 132px);
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-bottom: 1px solid var(--line);
  background: rgba(255, 254, 250, 0.94);
}

.fact-strip div {
  min-height: 140px;
  padding: 35px 24px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  border-right: 1px solid var(--line);
}

.fact-strip div:first-child {
  border-left: 1px solid var(--line);
}

.fact-strip strong {
  color: var(--ink);
  font-family: Georgia, "Times New Roman", serif;
  font-size: 32px;
  font-weight: 400;
}

.fact-strip span {
  margin-top: 6px;
  color: var(--muted);
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.11em;
  text-transform: uppercase;
}

.section {
  padding: clamp(80px, 10vw, 150px) clamp(24px, 8vw, 132px);
}

.intro {
  background: var(--paper);
}

.intro-grid {
  display: grid;
  grid-template-columns: 1.04fr 0.96fr;
  gap: clamp(50px, 8vw, 140px);
}

.intro h2,
.section-heading h2,
.topics h2,
.practical h2,
.audience h2,
.author h2,
.purchase h2,
.faq h2 {
  margin: 0;
  color: var(--ink);
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(39px, 4.5vw, 68px);
  font-weight: 400;
  letter-spacing: -0.035em;
  line-height: 1.02;
}

.intro h2 em {
  color: var(--teal);
  font-weight: 400;
}

.intro-text {
  padding-top: 8px;
}

.intro-text p,
.section-heading > p,
.topics-title > p,
.author-copy > p,
.faq-list p {
  color: #405363;
  font-size: 16px;
  line-height: 1.85;
}

.intro-text p:first-child {
  margin-top: 0;
  color: var(--ink-soft);
  font-size: 18px;
}

.chapters {
  background: var(--white);
}

.section-heading {
  margin-bottom: 62px;
  display: grid;
  grid-template-columns: 1fr 0.58fr;
  align-items: end;
  gap: 70px;
}

.section-heading .section-kicker {
  margin-bottom: 20px;
}

.section-heading > p {
  margin: 0 0 4px;
}

.chapter-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.chapter-card {
  position: relative;
  min-height: 330px;
  padding: clamp(30px, 4vw, 54px);
  overflow: hidden;
  background: var(--paper);
  transition: 220ms ease;
}

.chapter-card:hover {
  z-index: 2;
  background: var(--navy);
  color: white;
  transform: translateY(-4px);
  box-shadow: 0 22px 50px rgba(4, 18, 31, 0.17);
}

.chapter-number {
  color: var(--gold);
  font-family: Georgia, "Times New Roman", serif;
  font-size: 15px;
}

.chapter-card h3 {
  max-width: 430px;
  margin: 62px 0 16px;
  color: inherit;
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(24px, 2.2vw, 34px);
  font-weight: 400;
  line-height: 1.15;
}

.chapter-card p {
  max-width: 540px;
  margin: 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.75;
}

.chapter-card:hover p {
  color: rgba(255, 255, 255, 0.62);
}

.card-line {
  position: absolute;
  top: 55px;
  right: 0;
  width: 34%;
  height: 1px;
  background: var(--gold);
  opacity: 0.45;
}

.topics {
  display: grid;
  grid-template-columns: 0.72fr 1.28fr;
  gap: clamp(60px, 9vw, 150px);
  background: var(--paper);
}

.topics-title {
  position: sticky;
  top: 125px;
  align-self: start;
}

.topics-title > p {
  max-width: 430px;
  margin-top: 25px;
}

.topic-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  column-gap: 44px;
}

.topic-item {
  min-height: 86px;
  padding: 22px 0;
  display: grid;
  grid-template-columns: 40px 1fr;
  align-items: center;
  gap: 13px;
  border-bottom: 1px solid var(--line);
}

.topic-item span {
  color: var(--teal);
  font-family: Georgia, "Times New Roman", serif;
  font-size: 12px;
}

.topic-item p {
  margin: 0;
  color: var(--ink-soft);
  font-family: Georgia, "Times New Roman", serif;
  font-size: 17px;
  line-height: 1.35;
}

.practical {
  position: relative;
  padding: clamp(90px, 11vw, 155px) clamp(24px, 8vw, 132px);
  overflow: hidden;
  background: var(--navy-deep);
  color: white;
}

.practical::after {
  position: absolute;
  right: -160px;
  bottom: -240px;
  width: 700px;
  height: 700px;
  content: "";
  border: 1px solid rgba(202, 164, 100, 0.13);
  border-radius: 50%;
  box-shadow: 0 0 0 70px rgba(202, 164, 100, 0.025), 0 0 0 140px rgba(46, 150, 153, 0.025);
}

.practical-inner {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: clamp(60px, 9vw, 150px);
}

.section-kicker.light {
  color: var(--gold-light);
}

.practical h2,
.purchase h2 {
  color: white;
}

.practical-copy > p {
  max-width: 520px;
  margin: 27px 0 34px;
  color: rgba(255, 255, 255, 0.59);
  font-size: 16px;
  line-height: 1.85;
}

.secondary-button {
  padding: 16px 19px;
  display: inline-flex;
  align-items: center;
  gap: 35px;
  border: 1px solid rgba(202, 164, 100, 0.75);
  color: var(--gold-light);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.04em;
  transition: 180ms ease;
}

.secondary-button:hover,
.secondary-button:focus-visible {
  background: var(--gold);
  color: var(--navy-deep);
}

.practical-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.practical-list > div {
  min-height: 130px;
  padding: 27px;
  display: flex;
  gap: 14px;
  background: rgba(255, 255, 255, 0.035);
}

.practical-list span {
  width: 22px;
  height: 22px;
  flex: 0 0 auto;
  display: grid;
  place-items: center;
  border: 1px solid rgba(202, 164, 100, 0.55);
  border-radius: 50%;
  color: var(--gold-light);
  font-size: 10px;
}

.practical-list p {
  margin: 0;
  color: rgba(255, 255, 255, 0.75);
  font-family: Georgia, "Times New Roman", serif;
  font-size: 16px;
  line-height: 1.55;
}

.audience {
  background: var(--white);
}

.audience > h2 {
  max-width: 800px;
}

.audience-grid {
  margin-top: 67px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.audience-grid article {
  min-height: 270px;
  padding: clamp(28px, 3.5vw, 48px);
  background: var(--paper);
}

.audience-grid article > span {
  color: var(--gold);
  font-family: Georgia, "Times New Roman", serif;
  font-size: 13px;
}

.audience-grid h3 {
  margin: 61px 0 15px;
  font-family: Georgia, "Times New Roman", serif;
  font-size: 25px;
  font-weight: 400;
}

.audience-grid p {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.75;
}

.author {
  display: grid;
  grid-template-columns: 0.82fr 1.18fr;
  align-items: center;
  gap: clamp(60px, 9vw, 145px);
  background: var(--paper-deep);
}

.author-photo-wrap {
  position: relative;
  max-width: 570px;
}

.author-photo-wrap::before {
  position: absolute;
  z-index: 0;
  top: -22px;
  left: -22px;
  width: 42%;
  height: 34%;
  content: "";
  border-top: 1px solid var(--gold);
  border-left: 1px solid var(--gold);
}

.author-photo-wrap img {
  position: relative;
  z-index: 1;
  width: 100%;
  display: block;
  aspect-ratio: 4 / 5;
  object-fit: cover;
  object-position: center 20%;
  filter: contrast(1.03);
}

.photo-caption {
  position: absolute;
  z-index: 2;
  right: -1px;
  bottom: -1px;
  padding: 14px 20px;
  background: var(--paper-deep);
  color: var(--muted);
  font-size: 9px;
  font-weight: 800;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.author-copy h2 {
  font-size: clamp(44px, 5.2vw, 76px);
}

.author-role {
  margin: 15px 0 34px !important;
  color: var(--teal) !important;
  font-family: Georgia, "Times New Roman", serif;
  font-size: 19px !important;
  font-style: italic;
}

.author-copy > p {
  max-width: 680px;
}

.credentials {
  margin: 32px 0 27px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.credentials span {
  padding: 9px 12px;
  border: 1px solid rgba(8, 29, 48, 0.16);
  color: var(--ink-soft);
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.07em;
}

.author-link {
  display: inline-flex;
  gap: 15px;
  padding-bottom: 5px;
  border-bottom: 1px solid var(--gold);
  color: var(--ink);
  font-size: 13px;
  font-weight: 800;
}

.bookstore {
  background: var(--white);
}

.bookstore-heading {
  margin-bottom: 58px;
  display: grid;
  grid-template-columns: 1fr 0.55fr;
  align-items: end;
  gap: 70px;
}

.bookstore-heading h2 {
  max-width: 850px;
  margin: 0;
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(39px, 4.5vw, 68px);
  font-weight: 400;
  letter-spacing: -0.035em;
  line-height: 1.02;
}

.bookstore-heading > p {
  margin: 0 0 4px;
  color: #405363;
  font-size: 15px;
  line-height: 1.8;
}

.book-products {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px;
}

.book-product {
  position: relative;
  min-width: 0;
  display: grid;
  grid-template-columns: minmax(190px, 0.82fr) minmax(0, 1.18fr);
  border: 1px solid var(--line);
  background: var(--paper);
  overflow: hidden;
  transition: transform 220ms ease, box-shadow 220ms ease;
}

.book-product:hover {
  transform: translateY(-5px);
  box-shadow: 0 28px 70px rgba(4, 18, 31, 0.12);
}

.featured-product {
  border-color: rgba(202, 164, 100, 0.42);
}

.product-visual {
  position: relative;
  min-height: 590px;
  display: grid;
  place-items: center;
  overflow: hidden;
  background:
    radial-gradient(circle at 52% 46%, rgba(46, 150, 153, 0.19), transparent 55%),
    var(--navy-deep);
}

.rebt-visual {
  background:
    radial-gradient(circle at 70% 55%, rgba(229, 201, 143, 0.15), transparent 52%),
    #071c30;
}

.product-visual::before {
  position: absolute;
  width: 360px;
  height: 360px;
  content: "";
  border: 1px solid rgba(202, 164, 100, 0.14);
  border-radius: 50%;
}

.product-visual img {
  position: relative;
  z-index: 2;
  width: 132%;
  max-width: 520px;
  height: auto;
  filter: drop-shadow(18px 25px 22px rgba(0, 0, 0, 0.38));
  transform: translateX(3%);
}

.product-badge {
  position: absolute;
  z-index: 4;
  top: 20px;
  left: 20px;
  padding: 8px 10px;
  border: 1px solid rgba(202, 164, 100, 0.52);
  background: rgba(4, 18, 31, 0.78);
  color: var(--gold-light);
  font-size: 8px;
  font-weight: 800;
  letter-spacing: 0.13em;
  text-transform: uppercase;
  backdrop-filter: blur(8px);
}

.product-content {
  padding: clamp(30px, 3.6vw, 52px) clamp(27px, 3.3vw, 48px);
  display: flex;
  flex-direction: column;
}

.product-type {
  color: var(--teal);
  font-size: 9px;
  font-weight: 800;
  letter-spacing: 0.13em;
  text-transform: uppercase;
}

.product-content h3 {
  margin: 24px 0 5px;
  color: var(--ink);
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(29px, 2.8vw, 43px);
  font-weight: 400;
  letter-spacing: -0.035em;
  line-height: 1.02;
}

.product-subtitle {
  margin: 7px 0 20px;
  color: #8f6c35;
  font-family: Georgia, "Times New Roman", serif;
  font-size: 16px;
  font-style: italic;
  line-height: 1.35;
}

.product-description {
  margin: 0;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.75;
}

.product-meta {
  margin-top: 27px;
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
}

.product-meta span {
  padding: 8px 9px;
  border: 1px solid var(--line);
  color: var(--ink-soft);
  font-size: 8px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.product-buy {
  margin-top: auto;
  padding-top: 35px;
}

.product-buy > strong {
  margin-bottom: 15px;
  display: block;
  color: var(--ink);
  font-family: Georgia, "Times New Roman", serif;
  font-size: 37px;
  font-weight: 400;
}

.product-buy > strong small {
  font-family: Arial, Helvetica, sans-serif;
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.08em;
}

.product-buy > a {
  padding: 15px 17px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--ink);
  color: white;
  font-size: 11px;
  font-weight: 800;
  transition: 180ms ease;
}

.featured-product .product-buy > a {
  background: var(--gold);
  color: var(--navy-deep);
}

.product-buy > a:hover,
.product-buy > a:focus-visible {
  background: var(--teal);
  color: white;
}

.store-note {
  margin: 22px 0 0;
  color: #7b878f;
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 0.055em;
  text-align: center;
  text-transform: uppercase;
}

.purchase {
  background: var(--white);
}

.purchase-card {
  min-height: 500px;
  display: grid;
  grid-template-columns: 0.62fr 1.15fr 0.7fr;
  align-items: center;
  gap: clamp(28px, 5vw, 80px);
  padding: clamp(38px, 6vw, 82px);
  overflow: hidden;
  background: var(--navy);
  box-shadow: 0 32px 90px rgba(4, 18, 31, 0.16);
}

.purchase-book {
  perspective: 900px;
}

.purchase-book img {
  width: min(100%, 265px);
  display: block;
  transform: rotateY(-12deg) rotateZ(-1.5deg);
  box-shadow: 22px 28px 45px rgba(0, 0, 0, 0.42);
}

.purchase-copy > p {
  margin: 21px 0;
  color: rgba(255, 255, 255, 0.58);
  font-size: 15px;
  line-height: 1.75;
}

.purchase-copy ul {
  margin: 27px 0 0;
  padding: 0;
  list-style: none;
}

.purchase-copy li {
  margin: 10px 0;
  color: rgba(255, 255, 255, 0.75);
  font-size: 13px;
}

.purchase-copy li span {
  margin-right: 9px;
  color: var(--gold);
}

.purchase-price {
  padding-left: 38px;
  border-left: 1px solid rgba(255, 255, 255, 0.1);
}

.purchase-price > span {
  color: rgba(255, 255, 255, 0.42);
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.purchase-price > strong {
  margin: 12px 0 28px;
  display: block;
  color: var(--gold-light);
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(40px, 4vw, 58px);
  font-weight: 400;
  white-space: nowrap;
}

.purchase-price > strong small {
  font-family: Arial, Helvetica, sans-serif;
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.09em;
}

.purchase-price > a {
  width: 100%;
  padding: 17px 18px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--gold);
  color: var(--navy-deep);
  font-size: 12px;
  font-weight: 800;
  transition: 180ms ease;
}

.purchase-price > a:hover,
.purchase-price > a:focus-visible {
  background: var(--gold-light);
}

.purchase-price > p {
  color: rgba(255, 255, 255, 0.32);
  font-size: 9px;
  line-height: 1.5;
}

.faq {
  display: grid;
  grid-template-columns: 0.72fr 1.28fr;
  gap: clamp(60px, 9vw, 150px);
  background: var(--paper);
}

.faq-title {
  align-self: start;
}

.faq h2 {
  max-width: 500px;
}

.faq-list {
  border-top: 1px solid var(--line);
}

.faq-list details {
  border-bottom: 1px solid var(--line);
}

.faq-list summary {
  padding: 27px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 30px;
  color: var(--ink-soft);
  font-family: Georgia, "Times New Roman", serif;
  font-size: 19px;
  cursor: pointer;
  list-style: none;
}

.faq-list summary::-webkit-details-marker {
  display: none;
}

.faq-list summary span {
  color: var(--teal);
  font-family: Arial, Helvetica, sans-serif;
  font-size: 24px;
  font-weight: 300;
  transition: transform 180ms ease;
}

.faq-list details[open] summary span {
  transform: rotate(45deg);
}

.faq-list p {
  max-width: 700px;
  margin: -5px 40px 28px 0;
  font-size: 14px;
}

.medical-note {
  padding-top: 0;
  display: flex;
  align-items: flex-start;
  gap: 17px;
  background: var(--paper);
}

.medical-note > span {
  width: 28px;
  height: 28px;
  flex: 0 0 auto;
  display: grid;
  place-items: center;
  border: 1px solid var(--teal);
  border-radius: 50%;
  color: var(--teal);
  font-family: Georgia, "Times New Roman", serif;
  font-style: italic;
}

.medical-note p {
  max-width: 1050px;
  margin: 2px 0 0;
  color: var(--muted);
  font-size: 11px;
  line-height: 1.7;
}

footer {
  padding: 70px clamp(24px, 8vw, 132px) 110px;
  background: var(--navy-deep);
  color: white;
}

.footer-inner,
.footer-bottom {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 30px;
}

.footer-inner strong {
  font-family: Georgia, "Times New Roman", serif;
  font-size: 28px;
  font-weight: 400;
}

.footer-inner p {
  margin: 8px 0 0;
  color: rgba(255, 255, 255, 0.42);
  font-size: 11px;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 30px;
}

.footer-links a {
  color: rgba(255, 255, 255, 0.62);
  font-size: 11px;
  font-weight: 700;
}

.footer-links a:hover,
.footer-links a:focus-visible {
  color: var(--gold-light);
}

.footer-bottom {
  margin-top: 52px;
  padding-top: 22px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  color: rgba(255, 255, 255, 0.28);
  font-size: 9px;
  letter-spacing: 0.07em;
  text-transform: uppercase;
}

.mobile-buy {
  display: none;
}

/* Naslovni prikaz obe knjige */
.hero-book-duo {
  position: relative;
  z-index: 3;
  width: min(100%, 650px);
  height: 610px;
}

.hero-book {
  position: absolute;
  height: auto;
  object-fit: contain;
  filter: drop-shadow(28px 36px 30px rgba(0, 0, 0, 0.5));
  will-change: transform;
}

.hero-book-main {
  z-index: 2;
  right: -1%;
  bottom: 1%;
  width: 72%;
  animation: book-float 7s ease-in-out infinite;
}

.hero-book-rebt {
  z-index: 3;
  bottom: 0;
  left: -1%;
  width: 57%;
  animation: book-float-rebt 7.8s ease-in-out infinite;
}

@keyframes book-float-rebt {
  0%, 100% { transform: translateY(0) rotate(-1.6deg); }
  50% { transform: translateY(-9px) rotate(-0.8deg); }
}

/* Brzi izbor i kupovina */
.quick-catalog {
  background: var(--white);
}

.quick-catalog-heading {
  margin-bottom: 58px;
  display: grid;
  grid-template-columns: 1fr 0.62fr;
  align-items: end;
  gap: clamp(48px, 8vw, 120px);
}

.quick-catalog-heading h2 {
  max-width: 800px;
  margin: 0;
  color: var(--ink);
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(39px, 4.3vw, 66px);
  font-weight: 400;
  letter-spacing: -0.035em;
  line-height: 1.02;
}

.quick-catalog-heading > p {
  margin: 0 0 5px;
  color: #405363;
  font-size: 15px;
  line-height: 1.8;
}

.quick-catalog-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(20px, 3vw, 38px);
}

.quick-book-card {
  min-width: 0;
  overflow: hidden;
  border: 1px solid rgba(8, 29, 48, 0.13);
  background: var(--paper);
  box-shadow: 0 22px 55px rgba(8, 29, 48, 0.08);
  transition: transform 220ms ease, box-shadow 220ms ease;
}

.quick-book-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 28px 66px rgba(8, 29, 48, 0.14);
}

.quick-book-visual {
  position: relative;
  min-height: 510px;
  display: grid;
  place-items: center;
  overflow: hidden;
  background:
    radial-gradient(circle at 62% 43%, rgba(46, 150, 153, 0.23), transparent 37%),
    linear-gradient(145deg, #061522, #0b2a40);
}

.quick-book-card-rebt .quick-book-visual {
  background:
    radial-gradient(circle at 65% 45%, rgba(202, 164, 100, 0.18), transparent 40%),
    linear-gradient(145deg, #071a2c, #113650);
}

.quick-book-visual::before {
  position: absolute;
  inset: 9%;
  content: "";
  border: 1px solid rgba(202, 164, 100, 0.12);
  border-radius: 50%;
}

.quick-book-visual > span {
  position: absolute;
  z-index: 2;
  top: 24px;
  left: 24px;
  padding: 9px 12px;
  border: 1px solid rgba(202, 164, 100, 0.38);
  background: rgba(4, 18, 31, 0.7);
  color: var(--gold-light);
  font-size: 9px;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  backdrop-filter: blur(10px);
}

.quick-book-visual img {
  position: relative;
  z-index: 1;
  width: min(88%, 500px);
  max-height: 475px;
  object-fit: contain;
  filter: drop-shadow(25px 30px 24px rgba(0, 0, 0, 0.45));
}

.quick-book-copy {
  min-height: 480px;
  padding: clamp(30px, 4vw, 48px);
  display: flex;
  flex-direction: column;
}

.quick-book-type {
  margin: 0 0 17px;
  color: var(--teal);
  font-size: 9px;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.quick-book-copy h3 {
  margin: 0;
  color: var(--ink);
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(30px, 3vw, 43px);
  font-weight: 400;
  letter-spacing: -0.025em;
  line-height: 1.08;
}

.quick-book-subtitle {
  min-height: 48px;
  margin: 12px 0 18px;
  color: #846a3f;
  font-family: Georgia, "Times New Roman", serif;
  font-size: 18px;
  font-style: italic;
  line-height: 1.35;
}

.quick-book-copy > p:not(.quick-book-type):not(.quick-book-subtitle) {
  margin: 0;
  color: #4b5c69;
  font-size: 14px;
  line-height: 1.75;
}

.quick-book-copy ul {
  margin: 22px 0 32px;
  padding: 0;
  display: grid;
  gap: 9px;
  list-style: none;
}

.quick-book-copy li {
  position: relative;
  padding-left: 20px;
  color: var(--ink-soft);
  font-size: 12px;
  font-weight: 700;
}

.quick-book-copy li::before {
  position: absolute;
  top: 0.3em;
  left: 0;
  width: 7px;
  height: 7px;
  content: "";
  border: 1px solid var(--gold);
  border-radius: 50%;
}

.quick-book-buy {
  margin-top: auto;
  padding-top: 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  border-top: 1px solid var(--line);
}

.quick-book-buy div span,
.quick-book-buy div strong {
  display: block;
}

.quick-book-buy div span {
  margin-bottom: 5px;
  color: var(--muted);
  font-size: 8px;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.quick-book-buy div strong {
  color: var(--ink);
  font-family: Georgia, "Times New Roman", serif;
  font-size: 26px;
  font-weight: 400;
  white-space: nowrap;
}

.quick-book-buy > a {
  min-width: 180px;
  padding: 16px 18px;
  display: inline-flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  background: var(--gold);
  color: var(--navy-deep);
  font-size: 11px;
  font-weight: 800;
  transition: 180ms ease;
}

.quick-book-buy > a:hover,
.quick-book-buy > a:focus-visible {
  background: var(--navy);
  color: var(--gold-light);
  transform: translateY(-2px);
}

.quick-secure-note {
  margin: 28px 0 0;
  color: var(--muted);
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-align: center;
  text-transform: uppercase;
}

.detail-page-link {
  width: fit-content;
  margin-top: 18px;
  padding-bottom: 5px;
  border-bottom: 1px solid rgba(77, 143, 144, 0.35);
  color: var(--teal);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.04em;
}

.detail-page-link:hover,
.detail-page-link:focus-visible {
  color: var(--navy);
  border-color: var(--navy);
}

@media (max-width: 1120px) {
  .hero {
    min-height: auto;
    grid-template-columns: 1fr;
    padding: 78px 7vw 92px;
    text-align: center;
  }

  .hero-copy {
    display: flex;
    flex-direction: column;
    align-items: center;
  }

  .hero-library {
    width: min(100%, 840px);
    margin: 8px auto 0;
  }

  .hero-product-rebt {
    margin-top: 0;
  }

  .hero-product-stage {
    height: 430px;
  }

  .hero h1,
  .hero-subtitle,
  .hero-lead {
    margin-right: auto;
    margin-left: auto;
  }

  .hero-assurance {
    justify-content: center;
  }

  .purchase-card {
    grid-template-columns: 0.45fr 1fr;
  }

  .book-products {
    grid-template-columns: 1fr;
  }

  .quick-catalog-grid {
    grid-template-columns: 1fr;
  }

  .quick-book-card {
    display: grid;
    grid-template-columns: minmax(300px, 0.86fr) minmax(0, 1.14fr);
  }

  .quick-book-visual,
  .quick-book-copy {
    min-height: 530px;
  }

  .book-product {
    grid-template-columns: minmax(280px, 0.72fr) minmax(0, 1.28fr);
  }

  .product-visual {
    min-height: 540px;
  }

  .purchase-price {
    grid-column: 1 / -1;
    padding: 30px 0 0;
    display: grid;
    grid-template-columns: auto 1fr;
    align-items: center;
    gap: 12px 30px;
    border-top: 1px solid rgba(255,255,255,.1);
    border-left: 0;
  }

  .purchase-price > strong {
    margin: 0;
  }

  .purchase-price > a {
    max-width: 330px;
    justify-self: end;
  }

  .purchase-price > p {
    grid-column: 2;
    margin: 0;
    text-align: right;
  }
}

@media (max-width: 860px) {
  .desktop-nav {
    display: none;
  }

  .hero {
    min-height: auto;
    grid-template-columns: 1fr;
    padding: 54px 6vw 82px;
    text-align: center;
  }

  .hero-copy {
    display: flex;
    flex-direction: column;
    align-items: center;
  }

  .hero h1 {
    font-size: clamp(54px, 10vw, 78px);
  }

  .hero-library {
    order: -1;
    margin: 0 auto 18px;
  }

  .hero-product-stage {
    height: 390px;
  }

  .fact-strip {
    grid-template-columns: repeat(2, 1fr);
  }

  .fact-strip div:nth-child(3) {
    border-left: 1px solid var(--line);
  }

  .intro-grid,
  .section-heading,
  .bookstore-heading,
  .quick-catalog-heading,
  .topics,
  .practical-inner,
  .author,
  .faq {
    grid-template-columns: 1fr;
  }

  .intro-grid,
  .section-heading,
  .bookstore-heading,
  .quick-catalog-heading,
  .topics,
  .practical-inner,
  .author,
  .faq {
    gap: 45px;
  }

  .section-heading {
    margin-bottom: 45px;
  }

  .topics-title {
    position: static;
  }

  .author-photo-wrap {
    width: min(80%, 520px);
    margin: auto;
  }

  .audience-grid {
    grid-template-columns: 1fr;
  }

  .quick-book-card {
    grid-template-columns: 1fr;
  }

  .quick-book-visual {
    min-height: 500px;
  }

  .quick-book-copy {
    min-height: 0;
  }

  .audience-grid article {
    min-height: 220px;
  }

  .audience-grid h3 {
    margin-top: 35px;
  }
}

@media (max-width: 620px) {
  body {
    padding-bottom: 72px;
  }

  .announcement {
    gap: 8px;
    padding-right: 10px;
    padding-left: 10px;
    font-size: 8px;
    letter-spacing: 0.1em;
  }

  .announcement span:last-child,
  .announcement-dot:last-of-type {
    display: none;
  }

  .site-header {
    min-height: 67px;
    padding: 0 17px;
  }

  .brand-mark {
    width: 34px;
    height: 34px;
  }

  .brand small,
  .nav-cta {
    display: none;
  }

  .hero {
    padding: 28px 13px 66px;
  }

  .hero-library {
    width: 100%;
    gap: 8px;
    margin-bottom: 24px;
  }

  .hero-product {
    padding: 7px;
    border-radius: 18px;
  }

  .hero-product-badge {
    top: 13px;
    left: 13px;
    max-width: calc(100% - 26px);
    padding: 6px 7px;
    overflow: hidden;
    font-size: 6px;
    letter-spacing: 0.07em;
    text-overflow: ellipsis;
    white-space: nowrap;
  }

  .hero-product-stage {
    height: 235px;
    border-radius: 13px;
  }

  .hero-product-aura {
    width: 135px;
    height: 135px;
    box-shadow:
      0 0 0 20px rgba(255, 255, 255, 0.12),
      0 0 0 40px rgba(255, 255, 255, 0.08);
  }

  .hero-product-stage img,
  .hero-product-rebt .hero-product-stage img {
    width: 126%;
    max-height: 110%;
    transform: translateY(11px);
  }

  .hero-product-info {
    min-height: 162px;
    padding: 13px 5px 5px;
    gap: 12px;
  }

  .hero-product-info p {
    min-height: 20px;
    margin-bottom: 5px;
    font-size: 6px;
    line-height: 1.45;
  }

  .hero-product-info h2 {
    font-size: 18px;
    line-height: 1.08;
  }

  .hero h1 {
    font-size: clamp(45px, 13vw, 61px);
  }

  .hero-lead {
    font-size: 15px;
  }

  .hero-pills {
    justify-content: center;
  }

  .hero-actions {
    width: 100%;
    flex-direction: column;
    gap: 20px;
  }

  .primary-button {
    width: 100%;
    min-width: 0;
  }

  .hero-product-buy {
    align-items: stretch;
    flex-direction: column;
    gap: 9px;
  }

  .hero-product-buy strong {
    font-size: 18px;
  }

  .hero-product-buy a {
    width: 100%;
    padding: 10px 6px;
    font-size: 7px;
  }

  .hero-assurance {
    justify-content: center;
    gap: 9px 12px;
    font-size: 8px;
  }

  .fact-strip {
    padding: 0 16px;
  }

  .fact-strip div {
    min-height: 110px;
    padding: 25px 17px;
  }

  .fact-strip strong {
    font-size: 26px;
  }

  .fact-strip span {
    font-size: 8px;
    line-height: 1.5;
  }

  .section {
    padding: 76px 20px;
  }

  .intro h2,
  .quick-catalog-heading h2,
  .section-heading h2,
  .topics h2,
  .practical h2,
  .audience h2,
  .author h2,
  .purchase h2,
  .faq h2 {
    font-size: 39px;
  }

  .intro-text p:first-child {
    font-size: 17px;
  }

  .chapter-grid,
  .topic-list,
  .practical-list {
    grid-template-columns: 1fr;
  }

  .chapter-card {
    min-height: 295px;
  }

  .chapter-card h3 {
    margin-top: 48px;
    font-size: 28px;
  }

  .practical {
    padding: 80px 20px;
  }

  .practical-list > div {
    min-height: 100px;
  }

  .author-photo-wrap {
    width: 92%;
  }

  .author-copy h2 {
    font-size: 46px;
  }

  .purchase {
    padding-right: 13px;
    padding-left: 13px;
  }

  .bookstore {
    padding-right: 13px;
    padding-left: 13px;
  }

  .quick-catalog {
    padding-right: 13px;
    padding-left: 13px;
  }

  .quick-catalog-heading {
    padding: 0 7px;
  }

  .quick-book-visual {
    min-height: 405px;
  }

  .quick-book-visual img {
    width: 96%;
    max-height: 385px;
  }

  .quick-book-copy {
    padding: 31px 24px;
  }

  .quick-book-subtitle {
    min-height: 0;
  }

  .quick-book-buy {
    align-items: stretch;
    flex-direction: column;
  }

  .quick-book-buy > a {
    width: 100%;
  }

  .bookstore-heading {
    padding: 0 7px;
  }

  .book-product {
    grid-template-columns: 1fr;
  }

  .product-visual {
    min-height: 430px;
  }

  .product-visual img {
    width: 104%;
    max-width: 430px;
  }

  .product-content {
    min-height: 480px;
  }

  .store-note {
    padding: 0 12px;
    line-height: 1.7;
  }

  .purchase-card {
    grid-template-columns: 1fr;
    padding: 42px 25px;
    text-align: center;
  }

  .purchase-book img {
    width: 180px;
    margin: auto;
  }

  .purchase-copy ul {
    display: inline-block;
    text-align: left;
  }

  .purchase-price {
    grid-column: auto;
    padding-top: 28px;
    display: block;
    border-top: 1px solid rgba(255,255,255,.1);
  }

  .purchase-price > strong {
    margin: 11px 0 24px;
  }

  .purchase-price > a {
    max-width: none;
  }

  .purchase-price > p {
    text-align: center;
  }

  .faq-list summary {
    font-size: 17px;
  }

  .medical-note {
    padding-top: 0;
  }

  footer {
    padding: 60px 20px 80px;
  }

  .footer-inner,
  .footer-bottom {
    align-items: flex-start;
    flex-direction: column;
  }

  .footer-links {
    flex-direction: column;
    gap: 15px;
  }

  .footer-bottom {
    gap: 9px;
  }

  .mobile-buy {
    position: fixed;
    z-index: 80;
    right: 0;
    bottom: 0;
    left: 0;
    height: 72px;
    padding: 10px 13px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 14px;
    border-top: 1px solid rgba(77, 143, 144, 0.22);
    background: rgba(255, 254, 250, 0.96);
    color: var(--ink);
    box-shadow: 0 -12px 35px rgba(34, 62, 70, 0.08);
    backdrop-filter: blur(18px) saturate(140%);
  }

  .mobile-buy div span,
  .mobile-buy div strong {
    display: block;
  }

  .mobile-buy div span {
    color: #76868d;
    font-size: 8px;
    font-weight: 800;
    letter-spacing: .11em;
    text-transform: uppercase;
  }

  .mobile-buy div strong {
    margin-top: 3px;
    color: var(--teal);
    font-family: Georgia, "Times New Roman", serif;
    font-size: 18px;
    font-weight: 400;
  }

  .mobile-buy > a {
    padding: 15px 17px;
    border-radius: 999px;
    background: var(--navy);
    color: white;
    font-size: 11px;
    font-weight: 800;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
  }
}

/* Zasebne HTML5 stranice knjiga i pravnih informacija */
.subpage-header {
  position: sticky;
  z-index: 50;
  top: 0;
}

.subpage-main {
  background: var(--paper);
}

.detail-hero {
  position: relative;
  min-height: 720px;
  padding: clamp(78px, 9vw, 132px) clamp(24px, 8vw, 132px);
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(370px, 0.72fr);
  align-items: center;
  gap: clamp(55px, 8vw, 130px);
  overflow: hidden;
  background:
    radial-gradient(circle at 88% 20%, rgba(194, 224, 220, 0.75), transparent 33%),
    radial-gradient(circle at 12% 100%, rgba(244, 220, 195, 0.46), transparent 32%),
    linear-gradient(120deg, #fffefa, #f3f1e9 58%, #e8f2f0);
}

.detail-hero::after {
  position: absolute;
  inset: 0;
  content: "";
  opacity: 0.35;
  background-image:
    linear-gradient(rgba(16, 43, 60, 0.024) 1px, transparent 1px),
    linear-gradient(90deg, rgba(16, 43, 60, 0.024) 1px, transparent 1px);
  background-size: 72px 72px;
  pointer-events: none;
}

.detail-copy,
.detail-cover {
  position: relative;
  z-index: 2;
}

.detail-kicker {
  margin: 0 0 22px;
  color: var(--teal);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.detail-copy h1 {
  max-width: 800px;
  margin: 0;
  color: var(--ink);
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(58px, 6.3vw, 96px);
  font-weight: 400;
  letter-spacing: -0.055em;
  line-height: 0.92;
}

.detail-copy h1 em {
  display: block;
  color: var(--teal);
  font-weight: 400;
}

.detail-deck {
  max-width: 690px;
  margin: 28px 0 0;
  color: var(--ink-soft);
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(22px, 2vw, 31px);
  font-style: italic;
  line-height: 1.26;
}

.detail-summary {
  max-width: 680px;
  margin: 22px 0 0;
  color: #526874;
  font-size: 17px;
  line-height: 1.8;
}

.detail-meta {
  margin-top: 25px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.detail-meta span {
  padding: 9px 12px;
  border: 1px solid rgba(16, 43, 60, 0.1);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.6);
  color: #58707a;
  font-size: 9px;
  font-weight: 800;
  letter-spacing: 0.07em;
  text-transform: uppercase;
}

.detail-purchase {
  margin-top: 34px;
  display: flex;
  align-items: center;
  gap: 22px;
}

.detail-purchase a {
  padding: 17px 24px;
  border-radius: 999px;
  background: var(--navy);
  color: white;
  box-shadow: 0 18px 40px rgba(16, 43, 60, 0.15);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  transition: 180ms ease;
}

.detail-purchase a:hover,
.detail-purchase a:focus-visible {
  background: var(--teal);
  transform: translateY(-2px);
}

.detail-purchase strong {
  color: var(--ink);
  font-family: Georgia, "Times New Roman", serif;
  font-size: 30px;
  font-weight: 400;
}

.detail-cover {
  min-height: 530px;
  display: grid;
  place-items: center;
}

.detail-cover::before {
  position: absolute;
  width: 440px;
  height: 440px;
  content: "";
  border: 1px solid rgba(77, 143, 144, 0.18);
  border-radius: 50%;
  box-shadow: 0 0 0 50px rgba(255, 255, 255, 0.14);
}

.detail-cover img {
  position: relative;
  z-index: 2;
  width: min(100%, 520px);
  max-height: 620px;
  object-fit: contain;
  filter: drop-shadow(28px 38px 28px rgba(27, 51, 60, 0.25));
}

.detail-content {
  padding: clamp(82px, 10vw, 150px) clamp(24px, 8vw, 132px);
  background: var(--white);
}

.detail-content-grid {
  display: grid;
  grid-template-columns: minmax(260px, 0.54fr) minmax(0, 1.46fr);
  gap: clamp(50px, 9vw, 150px);
}

.detail-aside {
  align-self: start;
  position: sticky;
  top: 125px;
}

.detail-aside h2,
.detail-section h2,
.legal-card h1,
.thanks-card h1 {
  margin: 0;
  color: var(--ink);
  font-family: Georgia, "Times New Roman", serif;
  font-weight: 400;
  letter-spacing: -0.035em;
}

.detail-aside h2 {
  font-size: clamp(39px, 4vw, 61px);
  line-height: 1.02;
}

.detail-aside p {
  margin: 22px 0 0;
  color: #5c707a;
  font-size: 15px;
  line-height: 1.75;
}

.detail-sections {
  display: grid;
  gap: 64px;
}

.detail-section {
  padding-bottom: 58px;
  border-bottom: 1px solid var(--line);
}

.detail-section:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.detail-section h2 {
  font-size: clamp(32px, 3vw, 46px);
}

.detail-section > p {
  margin: 20px 0 0;
  color: #425b68;
  font-size: 16px;
  line-height: 1.85;
}

.detail-list {
  margin: 27px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  list-style: none;
}

.detail-list li {
  min-height: 84px;
  padding: 19px 20px;
  display: flex;
  align-items: flex-start;
  gap: 12px;
  border: 1px solid rgba(16, 43, 60, 0.09);
  border-radius: 15px;
  background: #faf9f5;
  color: #425b68;
  font-size: 14px;
  line-height: 1.55;
}

.detail-list li::before {
  width: 20px;
  height: 20px;
  flex: 0 0 20px;
  display: grid;
  place-items: center;
  content: "✓";
  border-radius: 50%;
  background: rgba(77, 143, 144, 0.12);
  color: var(--teal);
  font-size: 10px;
  font-weight: 900;
}

.edition-table {
  margin-top: 25px;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
}

.edition-table div {
  padding: 18px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.edition-table span,
.edition-table strong {
  display: block;
}

.edition-table span {
  color: #7a898f;
  font-size: 9px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.edition-table strong {
  margin-top: 6px;
  color: var(--ink);
  font-size: 14px;
}

.legal-page,
.thanks-page {
  min-height: 72vh;
  padding: clamp(72px, 9vw, 130px) 20px;
  background:
    radial-gradient(circle at 85% 10%, rgba(207, 231, 227, 0.8), transparent 32%),
    linear-gradient(135deg, #fffefa, #f4f1e9);
}

.legal-card,
.thanks-card {
  max-width: 900px;
  margin: 0 auto;
  padding: clamp(35px, 6vw, 76px);
  border: 1px solid rgba(16, 43, 60, 0.09);
  border-radius: 28px;
  background: rgba(255, 255, 255, 0.78);
  box-shadow: 0 28px 70px rgba(44, 75, 82, 0.09);
}

.legal-card h1,
.thanks-card h1 {
  font-size: clamp(45px, 6vw, 76px);
}

.legal-card h2 {
  margin: 44px 0 0;
  color: var(--ink);
  font-family: Georgia, "Times New Roman", serif;
  font-size: 29px;
  font-weight: 400;
}

.legal-card p,
.legal-card li,
.thanks-card p {
  color: #4a626e;
  font-size: 15px;
  line-height: 1.85;
}

.legal-card ul {
  padding-left: 22px;
}

.legal-updated {
  margin: 15px 0 35px;
  color: var(--teal) !important;
  font-size: 11px !important;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.thanks-card {
  max-width: 760px;
  text-align: center;
}

.thanks-icon {
  width: 72px;
  height: 72px;
  margin: 0 auto 27px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: rgba(77, 143, 144, 0.13);
  color: var(--teal);
  font-size: 31px;
}

.thanks-actions {
  margin-top: 32px;
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 12px;
}

.thanks-actions a {
  padding: 15px 20px;
  border: 1px solid var(--navy);
  border-radius: 999px;
  color: var(--navy);
  font-size: 11px;
  font-weight: 800;
}

.thanks-actions a:first-child {
  background: var(--navy);
  color: white;
}

@media (max-width: 900px) {
  .detail-hero,
  .detail-content-grid {
    grid-template-columns: 1fr;
  }

  .detail-hero {
    text-align: center;
  }

  .detail-cover {
    order: -1;
    min-height: 440px;
  }

  .detail-cover img {
    max-height: 500px;
  }

  .detail-summary,
  .detail-deck {
    margin-right: auto;
    margin-left: auto;
  }

  .detail-meta,
  .detail-purchase {
    justify-content: center;
  }

  .detail-aside {
    position: static;
  }
}

@media (max-width: 620px) {
  .detail-hero {
    padding: 48px 20px 68px;
  }

  .detail-cover {
    min-height: 330px;
  }

  .detail-cover::before {
    width: 280px;
    height: 280px;
  }

  .detail-cover img {
    max-height: 370px;
  }

  .detail-copy h1 {
    font-size: 53px;
  }

  .detail-summary {
    font-size: 15px;
  }

  .detail-purchase {
    align-items: stretch;
    flex-direction: column;
  }

  .detail-purchase a {
    width: 100%;
  }

  .detail-list,
  .edition-table {
    grid-template-columns: 1fr;
  }

  .legal-card,
  .thanks-card {
    padding: 34px 24px;
    border-radius: 20px;
  }
}