:root {
  --white: #ffffff;
  --ivory: #f8f6f2;
  --ivory-deep: #f0ece6;
  --copper: #a56a3f;
  --copper-dark: #805035;
  --anthracite: #292a2b;
  --muted: #666463;
  --line: #ddd7cf;
  --max: 1180px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: auto;
}

body {
  margin: 0;
  color: var(--anthracite);
  background: var(--white);
  font-family: Arial, Helvetica, sans-serif;
  font-size: 17px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: inherit;
}

.skip-link {
  position: fixed;
  z-index: 100;
  top: 12px;
  left: 12px;
  padding: 10px 16px;
  background: var(--anthracite);
  color: var(--white);
  transform: translateY(-150%);
}

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

.container {
  width: min(calc(100% - 48px), var(--max));
  margin: 0 auto;
}

.narrow {
  width: min(calc(100% - 48px), 820px);
  margin: 0 auto;
}

.site-header {
  position: relative;
  z-index: 10;
  border-bottom: 1px solid rgba(41, 42, 43, 0.1);
  background: rgba(255, 255, 255, 0.98);
}

.header-inner {
  min-height: 84px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 30px;
}

.brand {
  text-decoration: none;
  font-size: 25px;
  font-weight: 500;
  letter-spacing: 0.25em;
  color: var(--copper-dark);
}

.nav-toggle {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.nav-label {
  display: none;
  padding: 8px 0;
  cursor: pointer;
  font-size: 14px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 32px;
}

.site-nav a {
  position: relative;
  text-decoration: none;
  font-size: 14px;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.site-nav a:hover,
.site-nav a:focus,
.site-nav a[aria-current="page"] {
  color: var(--copper-dark);
}

.site-nav a[aria-current="page"]::after {
  position: absolute;
  right: 0;
  bottom: -11px;
  left: 0;
  height: 1px;
  background: var(--copper);
  content: "";
}

.button,
button {
  display: inline-flex;
  min-height: 50px;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--copper-dark);
  padding: 11px 25px;
  background: var(--copper-dark);
  color: var(--white);
  font: inherit;
  font-size: 15px;
  letter-spacing: 0.04em;
  text-decoration: none;
  cursor: pointer;
}

.button:hover,
.button:focus,
button:hover,
button:focus {
  background: var(--anthracite);
  border-color: var(--anthracite);
}

.button-secondary {
  background: transparent;
  color: var(--anthracite);
}

.eyebrow {
  margin: 0 0 18px;
  color: var(--copper-dark);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

h1,
h2,
h3 {
  margin-top: 0;
  font-family: Georgia, "Times New Roman", serif;
  font-weight: 400;
  line-height: 1.2;
}

h1 {
  margin-bottom: 25px;
  font-size: clamp(44px, 6vw, 78px);
  letter-spacing: 0.02em;
}

h2 {
  margin-bottom: 24px;
  font-size: clamp(34px, 4vw, 50px);
}

h3 {
  margin-bottom: 12px;
  font-size: 24px;
}

p {
  margin-top: 0;
}

.lead {
  font-size: clamp(20px, 2vw, 25px);
  line-height: 1.55;
}

.hero {
  overflow: hidden;
  background: var(--ivory);
}

.hero-grid {
  display: grid;
  min-height: 690px;
  grid-template-columns: 1.05fr 0.95fr;
  align-items: center;
  gap: 70px;
}

.hero-copy {
  padding: 90px 0;
}

.hero-copy .intro {
  max-width: 720px;
  margin-bottom: 34px;
  color: var(--muted);
}

.hero-visual {
  position: relative;
  min-height: 690px;
  align-self: stretch;
}

.hero-visual::before {
  position: absolute;
  z-index: 1;
  right: 0;
  bottom: 0;
  left: 0;
  height: 34%;
  background: linear-gradient(transparent, rgba(28, 24, 21, 0.35));
  content: "";
}

.hero-visual img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero-product {
  position: absolute;
  z-index: 2;
  right: -45px;
  bottom: 34px;
  width: 145px;
  filter: drop-shadow(0 22px 20px rgba(48, 37, 29, 0.2));
}

.section {
  padding: 110px 0;
}

.section-soft {
  background: var(--ivory);
}

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

.section-heading {
  max-width: 760px;
  margin-bottom: 55px;
}

.section-heading p:last-child {
  margin-bottom: 0;
  color: var(--muted);
}

.section-dark .section-heading p:last-child {
  color: #d5d2cf;
}

.two-column {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  align-items: center;
  gap: 90px;
}

.copy-block p:last-child {
  margin-bottom: 0;
}

.number {
  display: block;
  margin-bottom: 24px;
  color: var(--copper);
  font-family: Georgia, "Times New Roman", serif;
  font-size: 72px;
  line-height: 1;
}

.audience-list {
  display: grid;
  margin: 0;
  padding: 0;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--line);
  list-style: none;
  border: 1px solid var(--line);
}

.audience-list li {
  min-height: 155px;
  padding: 35px;
  background: var(--white);
  font-family: Georgia, "Times New Roman", serif;
  font-size: 24px;
  line-height: 1.35;
}

.audience-list li::before {
  display: block;
  width: 28px;
  height: 1px;
  margin-bottom: 23px;
  background: var(--copper);
  content: "";
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.feature-card {
  min-height: 210px;
  padding: 35px;
  border: 1px solid var(--line);
  background: var(--white);
}

.feature-icon {
  display: grid;
  width: 42px;
  height: 42px;
  margin-bottom: 28px;
  place-items: center;
  border: 1px solid var(--copper);
  border-radius: 50%;
  color: var(--copper-dark);
  font-family: Georgia, "Times New Roman", serif;
  font-size: 18px;
}

.feature-card h3 {
  margin-bottom: 8px;
  font-size: 21px;
}

.feature-card p {
  margin: 0;
  color: var(--muted);
  font-size: 15px;
}

.image-panel {
  min-height: 570px;
  background: var(--ivory-deep);
}

.image-panel img {
  width: 100%;
  height: 570px;
  object-fit: contain;
  object-position: center;
}

.image-panel.photo img {
  object-fit: cover;
}

.contact-band {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: 90px;
}

.contact-details {
  margin: 35px 0 0;
  padding: 0;
  list-style: none;
}

.contact-details li {
  padding: 14px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.18);
}

.contact-details small {
  display: block;
  color: #bbb7b3;
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.contact-details a {
  color: var(--white);
  text-decoration-color: var(--copper);
  text-underline-offset: 5px;
}

.contact-form {
  display: grid;
  gap: 22px;
}

.field label {
  display: block;
  margin-bottom: 8px;
  font-size: 13px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.field input,
.field textarea {
  width: 100%;
  border: 1px solid rgba(255, 255, 255, 0.35);
  border-radius: 0;
  padding: 14px 16px;
  background: transparent;
  color: var(--white);
  font: inherit;
}

.field textarea {
  min-height: 150px;
  resize: vertical;
}

.field input:focus,
.field textarea:focus {
  outline: 2px solid var(--copper);
  outline-offset: 2px;
}

.form-consent {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: 14px;
  color: #d5d2cf;
}

.form-consent input {
  width: 18px;
  height: 18px;
  margin-top: 4px;
  accent-color: var(--copper);
}

.form-note {
  margin: 0;
  color: #bbb7b3;
  font-size: 13px;
}

.page-hero {
  padding: 105px 0 90px;
  background: var(--ivory);
}

.page-hero h1 {
  max-width: 900px;
  font-size: clamp(42px, 5vw, 68px);
}

.page-hero p:last-child {
  max-width: 760px;
  margin-bottom: 0;
  color: var(--muted);
}

.literature-hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(340px, 0.92fr);
  gap: clamp(45px, 7vw, 105px);
  align-items: center;
}

.literature-hero-copy h1 {
  max-width: 720px;
}

.literature-illustration {
  margin: 0;
  border: 1px solid var(--line);
  background: var(--white);
}

.literature-illustration img {
  display: block;
  width: 100%;
  height: auto;
}

.product-layout {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  align-items: start;
  gap: 95px;
}

.product-visual {
  display: grid;
  min-height: 660px;
  place-items: center;
  padding: 50px;
  background: var(--ivory);
}

.product-visual img {
  width: auto;
  max-width: 48%;
  max-height: 470px;
  object-fit: contain;
  filter: drop-shadow(0 20px 22px rgba(48, 37, 29, 0.12));
}

.fact-list {
  margin: 45px 0 0;
  border-top: 1px solid var(--line);
}

.fact {
  display: grid;
  grid-template-columns: 170px 1fr;
  gap: 25px;
  padding: 17px 0;
  border-bottom: 1px solid var(--line);
}

.fact dt {
  color: var(--muted);
}

.fact dd {
  margin: 0;
}

.quote {
  margin: 45px 0 0;
  padding-left: 28px;
  border-left: 2px solid var(--copper);
  font-family: Georgia, "Times New Roman", serif;
  font-size: 25px;
  line-height: 1.5;
}

.timeline {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 45px;
}

.timeline-item {
  padding-top: 25px;
  border-top: 1px solid var(--copper);
}

.timeline-item .year {
  margin-bottom: 15px;
  color: var(--copper-dark);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.12em;
}

.literature-group + .literature-group {
  margin-top: 75px;
}

.literature-group > h2 {
  color: var(--copper-dark);
  font-size: clamp(30px, 3vw, 40px);
}

.literature-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 22px;
}

.literature-card {
  display: flex;
  flex-direction: column;
  padding: 34px;
  border: 1px solid var(--line);
  background: var(--white);
}

.literature-card h3 {
  margin-bottom: 10px;
  color: var(--copper-dark);
  font-size: 21px;
}

.literature-title {
  margin-bottom: 26px;
  font-family: Georgia, "Times New Roman", serif;
  font-size: 22px;
  line-height: 1.45;
}

.literature-label {
  margin-bottom: 8px;
  color: var(--muted);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.literature-source {
  display: inline-block;
  align-self: flex-start;
  margin-top: auto;
  padding-top: 18px;
  color: var(--copper-dark);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.02em;
  text-decoration: none;
}

.literature-source:hover,
.literature-source:focus-visible {
  text-decoration: underline;
}

.literature-source-unverified {
  color: var(--muted);
  font-weight: 400;
}

.literature-access-note {
  max-width: 920px;
  margin: 55px 0 0;
  padding-top: 22px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 13px;
  line-height: 1.7;
}

.literature-note {
  padding: 30px;
  border-left: 2px solid var(--copper);
  background: var(--ivory);
}

.legal h2 {
  margin-top: 55px;
  font-size: 30px;
}

.legal h3 {
  margin-top: 34px;
  font-family: Arial, Helvetica, sans-serif;
  font-size: 19px;
  font-weight: 700;
}

.legal-placeholder {
  padding: 22px;
  border-left: 3px solid var(--copper);
  background: var(--ivory);
}

.site-footer {
  padding: 56px 0 32px;
  border-top: 1px solid var(--line);
  background: var(--white);
}

.footer-main {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 40px;
}

.footer-brand p {
  max-width: 440px;
  margin: 12px 0 0;
  color: var(--muted);
  font-size: 14px;
}

.footer-links {
  display: flex;
  gap: 25px;
  font-size: 14px;
}

.footer-links a {
  text-underline-offset: 5px;
}

.footer-bottom {
  margin-top: 45px;
  padding-top: 25px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 12px;
}

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

  .literature-illustration {
    max-width: 720px;
  }

  .nav-label {
    display: block;
  }

  .site-nav {
    position: absolute;
    top: 84px;
    right: 0;
    left: 0;
    display: none;
    padding: 20px 24px 28px;
    background: var(--white);
    box-shadow: 0 12px 25px rgba(0, 0, 0, 0.08);
    flex-direction: column;
    align-items: flex-start;
    gap: 18px;
  }

  .nav-toggle:checked ~ .site-nav {
    display: flex;
  }

  .site-nav a[aria-current="page"]::after {
    display: none;
  }

  .hero-grid {
    min-height: auto;
    grid-template-columns: 1fr;
    gap: 0;
  }

  .hero-copy {
    padding: 75px 0 55px;
  }

  .hero-visual {
    min-height: 580px;
  }

  .hero-product {
    right: 20px;
    width: 120px;
  }

  .two-column,
  .contact-band,
  .product-layout {
    grid-template-columns: 1fr;
    gap: 55px;
  }

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

@media (max-width: 620px) {
  body {
    font-size: 16px;
  }

  .container,
  .narrow {
    width: min(calc(100% - 34px), var(--max));
  }

  .header-inner {
    min-height: 72px;
  }

  .site-nav {
    top: 72px;
  }

  .brand {
    font-size: 21px;
  }

  .section {
    padding: 75px 0;
  }

  .page-hero {
    padding: 72px 0 62px;
  }

  .hero-copy {
    padding: 62px 0 45px;
  }

  .hero-visual {
    min-height: 470px;
  }

  .hero-product {
    right: 10px;
    bottom: 20px;
    width: 95px;
  }

  .audience-list,
  .feature-grid,
  .timeline,
  .literature-grid {
    grid-template-columns: 1fr;
  }

  .audience-list li {
    min-height: auto;
  }

  .image-panel,
  .image-panel img {
    height: 430px;
    min-height: 430px;
  }

  .product-visual {
    min-height: 520px;
    padding: 35px;
  }

  .product-visual img {
    max-width: 58%;
    max-height: 430px;
  }

  .fact {
    grid-template-columns: 1fr;
    gap: 2px;
  }

  .footer-main,
  .footer-links {
    flex-direction: column;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
  }
}