/* =========================================
   1. GLOBAL VARIABLES
   ========================================= */

:root {
    --paper: #fcf9f1;
    --ink: #292724;
    --gold: #a47b45;
    --brown: #765a43;
    --line: #dfd2be;
}


/* =========================================
   2. GLOBAL STYLES
   ========================================= */

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    background: var(--paper);
    color: var(--ink);
    font-family: Arial, Helvetica, sans-serif;
    line-height: 1.65;
}

h1,
h2,
h3,
.wordmark {
    font-family: Georgia, 'Times New Roman', serif;
    font-weight: normal;
    line-height: 1.18;
}

a {
    color: inherit;
}


/* =========================================
   3. HEADER AND NAVIGATION
   ========================================= */

.site-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
    padding: 1.3rem max(5vw, 1.2rem);
    border-bottom: 1px solid var(--line);
}

.wordmark {
    text-decoration: none;
    font-size: 1.65rem;
}

.site-header nav {
    display: flex;
    gap: clamp(.7rem, 3vw, 2rem);
    flex-wrap: wrap;
    font-size: .9rem;
}

.site-header nav a {
    text-decoration: none;
}

.site-header a:hover,
.text-link:hover {
    color: var(--gold);
}


/* =========================================
   4. INTRODUCTION
   ========================================= */
/*
.intro {
    text-align: left;
    max-width: 760px;
    margin: auto;
    padding: clamp(4rem, 9vw, 8rem) 1.5rem;
}

.intro h1 {
    font-size: clamp(2.1rem, 5vw, 3.7rem);
    margin: .5rem 0 1rem;
}

.intro p:not(.eyebrow) {
    color: var(--brown);
}
*/
.eyebrow {
    letter-spacing: .17em;
    font-size: .72rem;
    font-weight: 700;
    color: var(--gold);
}

.text-link {
    display: inline-block;
    margin-top: 1rem;
    text-underline-offset: 5px;
}


/* =========================================
   5. BOOK SECTION
   ========================================= */

.book-section {
    border-top: 1px solid var(--line);
    padding: 4rem max(5vw, 1.2rem) 5rem;
    max-width: 1200px;
    margin: auto;
}

.book-section > h2,
.simple-section h2 {
    font-size: clamp(2rem, 4vw, 3rem);
    margin: .2rem 0 2rem;
}


/* =========================================
   6. EDITION SELECTOR
   ========================================= */

.edition-switch {
    display: inline-flex;
    flex-wrap: wrap;
    border: 1px solid var(--line);
    border-radius: 5px;
    padding: 4px;
    margin-bottom: 2.5rem;
    gap: 4px;
}

.edition-switch button {
    border: 0;
    background: transparent;
    color: var(--ink);
    font: inherit;
    padding: .65rem 1rem;
    border-radius: 3px;
    cursor: pointer;
}

.edition-switch button.active {
    background: var(--ink);
    color: white;
}

.edition-switch button:focus-visible {
    outline: 3px solid var(--gold);
    outline-offset: 3px;
}


/* =========================================
   7. BOOK LAYOUT AND COVER
   ========================================= */

.book-grid {
    display: grid;
    grid-template-columns: minmax(200px, 350px) minmax(0, 1fr);
    gap: clamp(2rem, 6vw, 5rem);
    align-items: start;
}

.book-grid img {
    display: block;
    width: 100%;
    height: auto;
    box-shadow: 0 15px 30px #29272428;
}


/* =========================================
   8. BOOK TEXT AND BLURB
   ========================================= */

.book-copy h3 {
    font-size: clamp(2rem, 4vw, 3.2rem);
    margin: 0;
}

.subtitle {
    color: var(--brown);
    margin: .7rem 0 2rem;
}

.blurb {
    max-width: 56ch;
}

.blurb p {
    margin: 0 0 1em;
}

.availability {
    color: var(--brown);
    font-size: .9rem;
    margin-top: 2rem;
}

#purchase-link[hidden] {
    display: none;
}

#load-status {
    color: #8c3125;
}


/* =========================================
   9. ABOUT AND CONTACT SECTIONS
   ========================================= */

.simple-section {
    border-top: 1px solid var(--line);
    padding: 3rem max(5vw, 1.2rem);
    max-width: 1200px;
    margin: auto;
}

.simple-section p:not(.eyebrow) {
    max-width: 65ch;
}


/* =========================================
   10. FOOTER
   ========================================= */

footer {
    border-top: 1px solid var(--line);
    padding: 1.8rem 5vw;
    font-size: .85rem;
    color: var(--brown);
    display: flex;
    justify-content: space-between;
    gap: 1rem;
    flex-wrap: wrap;
}


/* =========================================
   11. MOBILE LAYOUT
   ========================================= */

@media (max-width: 680px) {

    .site-header {
        flex-direction: column;
        align-items: flex-start;
    }

    .site-header nav {
        font-size: .85rem;
    }

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

    .book-grid img {
        max-width: 280px;
        margin: 0 auto;
    }

    .book-copy {
        text-align: left;
    }

    .book-section {
        padding-top: 3rem;
    }

    .intro {
        padding-top: 4rem;
        padding-bottom: 4rem;
    }
}


/* =========================================
   12. ACCESSIBILITY
   ========================================= */

@media (prefers-reduced-motion: reduce) {

    html {
        scroll-behavior: auto;
    }
}


/* Author homepage section */
.author-section {
  max-width: 1200px;
  margin: auto;
  padding: 3rem max(5vw, 1.2rem) 5rem;
}

.author-image {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  border-radius: 4px;
}

.author-intro {
    max-width: none;
    margin: 36px 0 0;
    text-align: left;
}

.author-intro h1 {
  margin-top: 12px;
  margin-bottom: 16px;
}

.author-intro p {
  line-height: 1.7;
}

.author-intro .eyebrow {
  margin-bottom: 8px;
}

.author-intro .text-link {
  display: inline-block;
  margin-top: 12px;
}

@media (max-width: 600px) {
  .author-section {
    padding: 28px 18px 48px;
  }

  .author-intro {
    margin-top: 24px;
  }
}


/* Author logo and introduction */
.author-signature {
  display: flex;
  align-items: center;
  gap: 3rem;
  margin-top: 24px;
}

.author-logo {
  display: block;
  width: 160px;
  height: 160px;
  object-fit: contain;
  flex-shrink: 0;
}

.author-description {
  flex: 1;
  min-width: 0;
}

.author-description h1 {
  margin-top: 0;
}

.author-description p {
  line-height: 1.7;
}

@media (max-width: 600px) {
  .author-signature {
    gap: 1.25rem;
  }

  .author-logo {
    width: 100px;
    height: 100px;
  }
}

.site-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}

.site-brand span {
  font-family: Georgia, serif;
  font-size: 1.5rem;
  font-weight: normal;
  color: var(--ink);
}

.site-brand-logo {
  width: 48px;
  height: 48px;
  object-fit: contain;
}