:root {
  --ink: #102e35;
  --ink-soft: #36545a;
  --petrol: #0c5960;
  --petrol-deep: #083e45;
  --turquoise: #168a87;
  --gold: #d3a84c;
  --gold-soft: #f5e6bd;
  --paper: #fbfcfa;
  --mist: #eef5f3;
  --white: #ffffff;
  --line: #d7e3df;
  --warning: #9b4b2f;
  --shadow: 0 18px 50px rgba(16, 46, 53, 0.1);
  --radius-sm: 10px;
  --radius: 18px;
  --radius-lg: 28px;
  --max: 1180px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  background: var(--paper);
}

body {
  margin: 0;
  color: var(--ink);
  background:
    radial-gradient(circle at 88% 2%, rgba(22, 138, 135, 0.1), transparent 28rem),
    var(--paper);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 1.0625rem;
  line-height: 1.66;
  text-rendering: optimizeLegibility;
}

a {
  color: inherit;
}

img,
svg {
  display: block;
  max-width: 100%;
}

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

:focus-visible {
  outline: 3px solid var(--gold);
  outline-offset: 4px;
}

.skip-link {
  position: fixed;
  top: 1rem;
  left: 1rem;
  z-index: 100;
  transform: translateY(-180%);
  padding: 0.7rem 1rem;
  border-radius: var(--radius-sm);
  background: var(--ink);
  color: var(--white);
}

.skip-link:focus {
  transform: translateY(0);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  border-bottom: 1px solid rgba(215, 227, 223, 0.88);
  background: rgba(251, 252, 250, 0.94);
  backdrop-filter: blur(14px);
}

.nav-shell,
.shell {
  width: min(calc(100% - 2rem), var(--max));
  margin-inline: auto;
}

.nav-shell {
  display: flex;
  min-height: 78px;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  color: var(--ink);
  font-size: 0.98rem;
  font-weight: 850;
  letter-spacing: 0.09em;
  text-decoration: none;
}

.brand-mark {
  display: grid;
  width: 2.35rem;
  height: 2.35rem;
  place-items: center;
  border-radius: 50%;
  background: var(--petrol-deep);
  color: var(--gold-soft);
  font-size: 0.72rem;
  letter-spacing: 0;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.site-nav a {
  padding: 0.62rem 0.78rem;
  border-radius: 999px;
  color: var(--ink-soft);
  font-size: 0.95rem;
  font-weight: 720;
  text-decoration: none;
}

.site-nav a:hover,
.site-nav a[aria-current="page"] {
  background: var(--mist);
  color: var(--petrol-deep);
}

.site-nav .nav-cta {
  margin-left: 0.45rem;
  background: var(--petrol);
  color: var(--white);
}

.site-nav .nav-cta:hover,
.site-nav .nav-cta[aria-current="page"] {
  background: var(--petrol-deep);
  color: var(--white);
}

.menu-button {
  display: none;
  min-width: 48px;
  min-height: 48px;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--line);
  border-radius: 50%;
  background: var(--white);
  color: var(--ink);
  font: inherit;
  font-size: 1.35rem;
  cursor: pointer;
}

main {
  overflow: hidden;
}

.hero {
  position: relative;
  padding: clamp(4.8rem, 9vw, 8rem) 0 clamp(4rem, 8vw, 7rem);
}

.hero::after {
  position: absolute;
  right: -9rem;
  bottom: 2.5rem;
  width: 24rem;
  height: 24rem;
  border: 1px solid rgba(211, 168, 76, 0.32);
  border-radius: 50%;
  content: "";
  pointer-events: none;
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(280px, 0.65fr);
  align-items: center;
  gap: clamp(2.5rem, 7vw, 6.5rem);
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  margin: 0 0 1rem;
  color: var(--petrol);
  font-size: 0.78rem;
  font-weight: 850;
  letter-spacing: 0.16em;
  line-height: 1.3;
  text-transform: uppercase;
}

.eyebrow::before {
  width: 2.5rem;
  height: 2px;
  background: var(--gold);
  content: "";
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1,
h2,
h3 {
  text-wrap: balance;
}

h1 {
  max-width: 14ch;
  margin-bottom: 1.35rem;
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(2.8rem, 7.2vw, 5.85rem);
  font-weight: 650;
  letter-spacing: -0.045em;
  line-height: 0.98;
}

.subpage h1 {
  max-width: 16ch;
  font-size: clamp(2.65rem, 6vw, 5rem);
}

.hero-copy {
  max-width: 64ch;
  margin-bottom: 1.8rem;
  color: var(--ink-soft);
  font-size: clamp(1.08rem, 2vw, 1.26rem);
  line-height: 1.65;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.8rem;
}

.button {
  display: inline-flex;
  min-height: 52px;
  align-items: center;
  justify-content: center;
  gap: 0.55rem;
  padding: 0.78rem 1.2rem;
  border: 1px solid transparent;
  border-radius: 999px;
  font-size: 1rem;
  font-weight: 820;
  line-height: 1.2;
  text-align: center;
  text-decoration: none;
}

.button-primary {
  background: var(--petrol);
  box-shadow: 0 10px 28px rgba(12, 89, 96, 0.22);
  color: var(--white);
}

.button-primary:hover {
  background: var(--petrol-deep);
  transform: translateY(-1px);
}

.button-secondary {
  border-color: var(--line);
  background: var(--white);
  color: var(--ink);
}

.button-secondary:hover {
  border-color: var(--turquoise);
  color: var(--petrol-deep);
}

.arrow {
  font-size: 1.15em;
  line-height: 1;
}

.hero-panel {
  position: relative;
  z-index: 1;
  padding: clamp(1.5rem, 4vw, 2.4rem);
  border: 1px solid rgba(211, 168, 76, 0.36);
  border-radius: var(--radius-lg);
  background: var(--ink);
  box-shadow: var(--shadow);
  color: var(--white);
}

.panel-label {
  margin-bottom: 1.8rem;
  color: var(--gold-soft);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.route-list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.route-list li {
  display: grid;
  grid-template-columns: 2.3rem 1fr;
  gap: 0.9rem;
  align-items: start;
  padding: 1rem 0;
  border-top: 1px solid rgba(255, 255, 255, 0.15);
}

.route-list li:last-child {
  padding-bottom: 0;
}

.route-number {
  color: var(--gold);
  font-family: Georgia, "Times New Roman", serif;
  font-size: 1.3rem;
}

.route-list strong {
  display: block;
  margin-bottom: 0.15rem;
  font-size: 1.03rem;
}

.route-list span {
  color: rgba(255, 255, 255, 0.72);
  font-size: 0.92rem;
}

.trust-line {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem 1.8rem;
  padding: 1.25rem 0;
  border-block: 1px solid var(--line);
  color: var(--ink-soft);
  font-size: 0.93rem;
  font-weight: 700;
}

.trust-line span {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
}

.trust-line span::before {
  width: 0.45rem;
  height: 0.45rem;
  border-radius: 50%;
  background: var(--gold);
  content: "";
}

.section {
  padding: clamp(4.4rem, 8vw, 7.5rem) 0;
}

.section-tight {
  padding: clamp(3.5rem, 6vw, 5.5rem) 0;
}

.section-tint {
  background: var(--mist);
}

.section-dark {
  background: var(--ink);
  color: var(--white);
}

.section-heading {
  display: grid;
  grid-template-columns: minmax(0, 0.7fr) minmax(0, 1.3fr);
  gap: 2rem 5rem;
  align-items: end;
  margin-bottom: 2.7rem;
}

.section-heading h2 {
  max-width: 17ch;
  margin-bottom: 0;
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(2.2rem, 4.4vw, 3.8rem);
  font-weight: 650;
  letter-spacing: -0.035em;
  line-height: 1.05;
}

.section-heading p {
  max-width: 60ch;
  margin-bottom: 0;
  color: var(--ink-soft);
}

.section-dark .section-heading p {
  color: rgba(255, 255, 255, 0.7);
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
}

.card {
  min-height: 100%;
  padding: 1.65rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--white);
}

.card-number {
  display: grid;
  width: 2.4rem;
  height: 2.4rem;
  place-items: center;
  margin-bottom: 2.4rem;
  border-radius: 50%;
  background: var(--gold-soft);
  color: var(--ink);
  font-size: 0.84rem;
  font-weight: 850;
}

.card h3 {
  margin-bottom: 0.55rem;
  font-size: 1.18rem;
}

.card p {
  margin-bottom: 0;
  color: var(--ink-soft);
}

.card-link {
  display: inline-flex;
  margin-top: 1.35rem;
  color: var(--petrol);
  font-weight: 800;
  text-decoration-thickness: 1px;
  text-underline-offset: 4px;
}

.feature {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(280px, 0.9fr);
  gap: clamp(2.5rem, 7vw, 6rem);
  align-items: center;
}

.feature h2,
.book-intro h2,
.cta-block h2 {
  margin-bottom: 1rem;
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(2.3rem, 5vw, 4.3rem);
  font-weight: 650;
  letter-spacing: -0.04em;
  line-height: 1.04;
}

.feature-copy {
  max-width: 60ch;
  color: var(--ink-soft);
}

.steps {
  display: grid;
  gap: 0.8rem;
  margin-top: 1.75rem;
}

.step {
  display: grid;
  grid-template-columns: 2.6rem 1fr;
  gap: 1rem;
  align-items: start;
  padding: 1rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.78);
}

.step strong {
  display: block;
  margin-bottom: 0.15rem;
}

.step span {
  color: var(--ink-soft);
  font-size: 0.94rem;
}

.step-index {
  color: var(--petrol);
  font-family: Georgia, "Times New Roman", serif;
  font-size: 1.4rem;
}

.fact-panel {
  position: relative;
  padding: 2rem;
  border-radius: var(--radius-lg);
  background: var(--petrol-deep);
  color: var(--white);
}

.fact-panel::before {
  position: absolute;
  inset: 1rem;
  border: 1px solid rgba(211, 168, 76, 0.42);
  border-radius: calc(var(--radius-lg) - 0.55rem);
  content: "";
  pointer-events: none;
}

.fact-panel-inner {
  position: relative;
  z-index: 1;
  padding: 1.5rem 1rem;
}

.fact-panel .big-number {
  margin-bottom: 0.1rem;
  color: var(--gold-soft);
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(4.2rem, 10vw, 7rem);
  line-height: 0.9;
}

.fact-panel p {
  margin-bottom: 0;
  color: rgba(255, 255, 255, 0.75);
}

.topic-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0.9rem;
}

.topic {
  min-height: 11rem;
  padding: 1.35rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--white);
}

.topic-label {
  display: block;
  margin-bottom: 2.2rem;
  color: var(--turquoise);
  font-size: 0.76rem;
  font-weight: 850;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.topic h3 {
  margin-bottom: 0.45rem;
  font-size: 1.08rem;
}

.topic p {
  margin-bottom: 0;
  color: var(--ink-soft);
  font-size: 0.94rem;
}

.article-card-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
}

.article-card {
  display: flex;
  min-height: 20rem;
  flex-direction: column;
  padding: 1.6rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--white);
}

.article-card-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 0.8rem;
  margin-bottom: 2.8rem;
  color: var(--ink-soft);
  font-size: 0.78rem;
  font-weight: 750;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.article-card-meta span:first-child {
  color: var(--turquoise);
}

.article-card h3 {
  margin-bottom: 0.7rem;
  font-family: Georgia, "Times New Roman", serif;
  font-size: 1.55rem;
  font-weight: 650;
  letter-spacing: -0.025em;
  line-height: 1.12;
}

.article-card p {
  margin-bottom: 1.4rem;
  color: var(--ink-soft);
}

.article-card .card-link {
  margin-top: auto;
}

.article-header {
  padding: clamp(4.2rem, 8vw, 7rem) 0 2.8rem;
}

.article-header .shell {
  max-width: 900px;
}

.article-header h1 {
  max-width: 18ch;
  font-size: clamp(2.7rem, 6.5vw, 5rem);
}

.article-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem 1.2rem;
  margin-bottom: 1rem;
  color: var(--ink-soft);
  font-size: 0.88rem;
  font-weight: 720;
}

.article-lead {
  max-width: 64ch;
  margin-bottom: 0;
  color: var(--ink-soft);
  font-size: clamp(1.15rem, 2vw, 1.35rem);
  line-height: 1.6;
}

.article-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 280px;
  gap: clamp(2.5rem, 7vw, 5.5rem);
  align-items: start;
  padding-bottom: clamp(4rem, 8vw, 7rem);
}

.article-body {
  max-width: 760px;
}

.article-body h2 {
  margin: 2.7rem 0 0.8rem;
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(1.8rem, 3.5vw, 2.55rem);
  font-weight: 650;
  letter-spacing: -0.025em;
  line-height: 1.12;
}

.article-body h2:first-child {
  margin-top: 0;
}

.article-body h3 {
  margin: 2rem 0 0.55rem;
  font-size: 1.2rem;
}

.article-body p,
.article-body li {
  color: var(--ink-soft);
}

.article-body ul,
.article-body ol {
  padding-left: 1.4rem;
}

.article-body li {
  margin-bottom: 0.55rem;
}

.article-callout {
  margin: 2rem 0;
  padding: 1.4rem;
  border-left: 4px solid var(--gold);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  background: var(--mist);
}

.article-callout strong {
  display: block;
  margin-bottom: 0.35rem;
  color: var(--ink);
}

.article-callout p {
  margin-bottom: 0;
}

.article-aside {
  position: sticky;
  top: 104px;
  padding: 1.35rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--white);
}

.article-aside h2 {
  margin-bottom: 0.55rem;
  font-size: 1.1rem;
}

.article-aside p {
  margin-bottom: 1rem;
  color: var(--ink-soft);
  font-size: 0.92rem;
}

.article-aside .button {
  width: 100%;
}

.source-list {
  margin-top: 3rem;
  padding-top: 1.3rem;
  border-top: 1px solid var(--line);
}

.source-list h2 {
  margin-top: 0;
  font-family: inherit;
  font-size: 1rem;
  letter-spacing: 0;
}

.source-list a {
  color: var(--petrol);
  text-underline-offset: 3px;
}

.legal-content {
  max-width: 820px;
  padding-bottom: clamp(4rem, 8vw, 7rem);
}

.legal-content address {
  color: var(--ink-soft);
  font-style: normal;
  line-height: 1.75;
}

.legal-content p {
  max-width: 72ch;
}

.list-clean {
  margin: 1.5rem 0 0;
  padding: 0;
  list-style: none;
}

.list-clean li {
  position: relative;
  padding: 0.75rem 0 0.75rem 1.7rem;
  border-bottom: 1px solid var(--line);
}

.list-clean li::before {
  position: absolute;
  top: 1.18rem;
  left: 0;
  width: 0.55rem;
  height: 0.55rem;
  border: 2px solid var(--turquoise);
  border-radius: 50%;
  content: "";
}

.check-hero-panel {
  padding: 2rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--white);
  box-shadow: var(--shadow);
}

.check-hero-panel .mini-stat {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.15rem 0;
  border-bottom: 1px solid var(--line);
}

.check-hero-panel .mini-stat:last-child {
  border-bottom: 0;
}

.mini-stat strong {
  color: var(--petrol);
  font-family: Georgia, "Times New Roman", serif;
  font-size: 2.2rem;
  line-height: 1;
}

.mini-stat span {
  color: var(--ink-soft);
  font-size: 0.92rem;
  text-align: right;
}

.privacy-note {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 1rem;
  padding: 1.25rem;
  border-left: 4px solid var(--gold);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  background: var(--white);
}

.privacy-note strong {
  display: block;
  margin-bottom: 0.25rem;
}

.privacy-note p {
  margin-bottom: 0;
  color: var(--ink-soft);
}

.book-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(300px, 1.05fr);
  gap: clamp(2.5rem, 8vw, 7rem);
  align-items: center;
}

.book-visual {
  width: 100%;
  max-width: 32rem;
  aspect-ratio: 1122 / 1402;
  overflow: hidden;
  margin: 0;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--white);
  box-shadow: var(--shadow);
  justify-self: center;
}

.book-visual img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.facts {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.8rem;
  margin: 1.8rem 0;
}

.fact {
  padding: 1rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--white);
}

.fact strong {
  display: block;
  color: var(--petrol);
  font-family: Georgia, "Times New Roman", serif;
  font-size: 1.75rem;
  line-height: 1.1;
}

.fact span {
  color: var(--ink-soft);
  font-size: 0.88rem;
}

.cta-block {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 2rem;
  align-items: center;
  padding: clamp(2rem, 5vw, 3.2rem);
  border-radius: var(--radius-lg);
  background: var(--ink);
  color: var(--white);
}

.cta-block h2 {
  max-width: 16ch;
  margin-bottom: 0.5rem;
  font-size: clamp(2rem, 4vw, 3.4rem);
}

.cta-block p {
  max-width: 58ch;
  margin-bottom: 0;
  color: rgba(255, 255, 255, 0.7);
}

.cta-block .button-primary {
  background: var(--gold);
  color: var(--ink);
}

.cta-block .button-primary:hover {
  background: var(--gold-soft);
}

.site-footer {
  padding: 2.5rem 0;
  border-top: 1px solid var(--line);
  background: var(--paper);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 2rem;
  align-items: start;
}

.footer-copy {
  max-width: 62ch;
  margin: 0.65rem 0 0;
  color: var(--ink-soft);
  font-size: 0.88rem;
}

.footer-nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 0.8rem 1.2rem;
}

.footer-nav a {
  color: var(--ink-soft);
  font-size: 0.9rem;
  font-weight: 700;
  text-decoration-thickness: 1px;
  text-underline-offset: 4px;
}

@media (max-width: 900px) {
  .menu-button {
    display: inline-flex;
  }

  .site-nav {
    position: absolute;
    top: calc(100% + 1px);
    right: 1rem;
    left: 1rem;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0.3rem;
    padding: 0.8rem;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: var(--white);
    box-shadow: var(--shadow);
  }

  .site-nav[data-open="true"] {
    display: flex;
  }

  .site-nav a {
    padding: 0.9rem 1rem;
  }

  .site-nav .nav-cta {
    margin-left: 0;
    text-align: center;
  }

  .hero-grid,
  .feature,
  .book-grid {
    grid-template-columns: 1fr;
  }

  .hero-panel {
    max-width: 38rem;
  }

  .section-heading {
    grid-template-columns: 1fr;
    align-items: start;
  }

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

  .article-card-grid,
  .article-layout {
    grid-template-columns: 1fr;
  }

  .article-aside {
    position: static;
  }

  .topic-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .book-visual {
    max-width: 30rem;
  }

  .cta-block {
    grid-template-columns: 1fr;
    justify-items: start;
  }
}

@media (max-width: 600px) {
  .nav-shell,
  .shell {
    width: min(calc(100% - 1.25rem), var(--max));
  }

  .nav-shell {
    min-height: 70px;
  }

  .brand {
    font-size: 0.88rem;
  }

  .brand-mark {
    width: 2.1rem;
    height: 2.1rem;
    font-size: 0.66rem;
  }

  .hero {
    padding-top: 3.8rem;
  }

  .hero::after {
    display: none;
  }

  h1 {
    font-size: clamp(2.65rem, 13vw, 4.2rem);
  }

  .subpage h1 {
    font-size: clamp(2.55rem, 12vw, 4rem);
  }

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

  .button {
    width: 100%;
  }

  .topic-grid,
  .facts,
  .article-card-grid {
    grid-template-columns: 1fr;
  }

  .article-card {
    min-height: auto;
  }

  .article-card-meta {
    margin-bottom: 1.8rem;
  }

  .topic {
    min-height: auto;
  }

  .topic-label {
    margin-bottom: 1.25rem;
  }

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

  .footer-nav {
    justify-content: flex-start;
  }
}

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

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