/* GENERAL */

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: #f7f4ee;
  color: #302036;
  font-family: Georgia, serif;
}

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

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

/* HEADER */

.site-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 24px 5%;
  background: #f7f4ee;
  border-bottom: 1px solid #ddd5c8;
  gap: 30px;
}

.logo {
  font-size: 23px;
  white-space: nowrap;
}

.logo span,
.hero h1 span,
footer h2 span {
  color: #b59a64;
}

nav {
  display: flex;
  flex-wrap: wrap;
  gap: 25px;
  align-items: center;
}

nav a {
  font-family: Arial, sans-serif;
  font-size: 13px;
  transition: color 0.3s;
}

nav a:hover {
  color: #a17a39;
}

nav a.active {
  color: #a17a39;
}

/* HERO */

.hero {
  display: grid;
  grid-template-columns: 55% 45%;
  min-height: 580px;
  background: #302036;
  color: #f7f4ee;
}

.hero-text {
  padding: 100px 8% 90px 9%;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  justify-content: center;
}

.eyebrow {
  font-family: Arial, sans-serif;
  font-size: 12px;
  font-weight: bold;
  letter-spacing: 2px;
  color: #b59a64;
  margin: 0 0 25px;
}

.hero h1 {
  font-size: clamp(52px, 5.5vw, 86px);
  font-weight: normal;
  line-height: 1.05;
  letter-spacing: -2px;
  margin: 0 0 35px;
}

.hero-description {
  font-size: 19px;
  line-height: 1.7;
  max-width: 460px;
  color: #e0d7df;
  margin: 0 0 40px;
}

.hero-link {
  font-family: Arial, sans-serif;
  font-size: 14px;
  padding-bottom: 10px;
  border-bottom: 1px solid #b59a64;
  transition: color 0.3s;
}

.hero-link span {
  margin-left: 15px;
  color: #b59a64;
}

.hero-link:hover {
  color: #d5b77c;
}

.hero-image {
  min-height: 580px;
  overflow: hidden;
  background: #c7b9aa;
}

.hero-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 25%;
  filter: grayscale(100%);
}

/* INTRODUCTION */

.introduction {
  max-width: 1200px;
  margin: 0 auto;
  padding: 120px 40px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 100px;
}

.section-heading h2 {
  font-size: clamp(38px, 4vw, 60px);
  line-height: 1.15;
  font-weight: normal;
  letter-spacing: -1px;
  margin: 0;
}

.intro-content p {
  font-size: 19px;
  line-height: 1.8;
  margin: 0 0 25px;
}

/* BUTTON */

.button {
  display: inline-flex;
  justify-content: center;
  align-items: center;
  background: #302036;
  color: white;
  min-width: 230px;
  padding: 18px 28px;
  margin-top: 15px;
  font-family: Arial, sans-serif;
  font-size: 14px;
  transition: background 0.3s;
}

.button:hover {
  background: #a17a39;
}

.button-hover {
  display: none;
}

.button:hover .button-default {
  display: none;
}

.button:hover .button-hover {
  display: inline;
}

/* QUOTE */

.quote {
  background: #e9e2d6;
  text-align: center;
  padding: 100px 25px;
}

.quote blockquote {
  max-width: 850px;
  margin: 0 auto 30px;
  font-size: clamp(30px, 4vw, 52px);
  font-weight: normal;
  font-style: italic;
  line-height: 1.4;
}

.quote-credit {
  font-family: Arial, sans-serif;
  font-size: 13px;
  letter-spacing: 1px;
  color: #776a75;
}

/* EXPLORE */

.explore {
  max-width: 1200px;
  margin: 0 auto;
  padding: 120px 40px;
}

.explore-heading {
  display: flex;
  justify-content: space-between;
  align-items: end;
  gap: 40px;
  margin-bottom: 60px;
}

.explore-heading h2 {
  font-size: clamp(38px, 4vw, 58px);
  font-weight: normal;
  letter-spacing: -1px;
  margin: 0;
}

.explore-heading > p {
  max-width: 280px;
  font-size: 16px;
  line-height: 1.6;
  margin: 0;
}

/* CHAPTER LINKS */

.chapter-list {
  border-top: 1px solid #c9bdad;
}

.chapter {
  display: grid;
  grid-template-columns: 70px 1fr 40px;
  align-items: center;
  gap: 20px;
  padding: 35px 15px;
  border-bottom: 1px solid #c9bdad;
  transition: background 0.3s, padding 0.3s;
}

.chapter:hover {
  background: #ede6da;
  padding-left: 30px;
}

.chapter-number {
  font-family: Arial, sans-serif;
  font-size: 13px;
  color: #a17a39;
}

.chapter-info h3 {
  font-size: 30px;
  font-weight: normal;
  margin: 0 0 10px;
}

.chapter-info p {
  font-family: Arial, sans-serif;
  font-size: 14px;
  color: #756d73;
  margin: 0;
  line-height: 1.5;
}

.chapter-arrow {
  font-size: 25px;
  color: #a17a39;
  transition: transform 0.3s;
}

.chapter:hover .chapter-arrow {
  transform: translate(4px, -4px);
}

/* FOOTER */

footer {
  background: #302036;
  color: #f7f4ee;
  padding: 70px 5% 30px;
}

.footer-top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 40px;
  padding-bottom: 65px;
}

.footer-top h2 {
  font-size: 35px;
  font-weight: normal;
  margin: 0;
}

.footer-navigation {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.footer-navigation a {
  font-family: Arial, sans-serif;
  font-size: 14px;
  transition: color 0.3s;
}

.footer-navigation a:hover,
.sources a:hover {
  color: #d5b77c;
}

.footer-bottom {
  border-top: 1px solid #66536b;
  padding-top: 25px;
  display: flex;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
}

.footer-bottom p,
.sources {
  font-family: Arial, sans-serif;
  font-size: 12px;
  color: #d5c9d4;
}

.sources {
  display: flex;
  gap: 15px;
  flex-wrap: wrap;
}

.sources a {
  text-decoration: underline;
  text-underline-offset: 3px;
  transition: color 0.3s;
}

/* TABLET */

@media (max-width: 1000px) {

  .site-header {
    flex-direction: column;
    gap: 20px;
  }

  nav {
    justify-content: center;
  }

  .hero {
    grid-template-columns: 55% 45%;
  }

  .hero-text {
    padding: 70px 7%;
  }

  .hero h1 {
    font-size: 55px;
  }

  .introduction {
    gap: 50px;
  }

}

/* MOBILE */

@media (max-width: 700px) {

  .site-header {
    padding: 22px 20px;
  }

  .logo {
    font-size: 22px;
  }

  nav {
    gap: 12px 18px;
  }

  nav a {
    font-size: 12px;
  }

  .hero {
    display: flex;
    flex-direction: column-reverse;
  }

  .hero-image {
    min-height: 0;
    height: 300px;
  }

  .hero-text {
    padding: 55px 25px 65px;
  }

  .hero h1 {
    font-size: clamp(43px, 10vw, 60px);
    letter-spacing: -1px;
  }

  .hero-description {
    font-size: 17px;
  }

  .introduction {
    grid-template-columns: 1fr;
    gap: 30px;
    padding: 75px 25px;
  }

  .section-heading h2 {
    font-size: 40px;
  }

  .intro-content p {
    font-size: 17px;
  }

  .quote {
    padding: 75px 25px;
  }

  .quote blockquote {
    font-size: 31px;
  }

  .explore {
    padding: 75px 25px;
  }

  .explore-heading {
    display: block;
    margin-bottom: 40px;
  }

  .explore-heading h2 {
    font-size: 39px;
  }

  .explore-heading > p {
    margin-top: 20px;
  }

  .chapter {
    grid-template-columns: 35px 1fr 20px;
    gap: 10px;
    padding: 28px 5px;
  }

  .chapter:hover {
    padding-left: 10px;
  }

  .chapter-info h3 {
    font-size: 23px;
  }

  .chapter-info p {
    font-size: 13px;
  }

  .chapter-arrow {
    font-size: 20px;
  }

  footer {
    padding: 60px 25px 30px;
  }

  .footer-top {
    flex-direction: column;
    gap: 35px;
  }

  .footer-top h2 {
    font-size: 30px;
  }

  .footer-bottom {
    flex-direction: column;
  }

}

/* ACCESSIBILITY */

a:focus-visible {
  outline: 2px solid #b59a64;
  outline-offset: 5px;
}

@media (hover: none) {
  .button-default {
    display: none;
  }

  .button-hover {
    display: inline;
  }
}

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

  *,
  *::before,
  *::after {
    transition: none !important;
  }
}