:root {
  --color-teal: #0a9396;
  --color-turquoise: #00b4d8;
  --color-orange: #e76f51;
  --color-white: #ffffff;
  --color-black: #1a1a1a;
  --color-light: #f4f9f9;
  --color-dark: #0a4a5c;
  --color-mint: #9fe1cb;
  --font-heading: 'Montserrat', sans-serif;
  --font-script: 'Dancing Script', cursive;
  --font-body: 'Lora', serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--color-black);
  background: var(--color-white);
  font-family: var(--font-body);
  font-size: 18px;
  line-height: 1.65;
}

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

a {
  color: var(--color-teal);
  text-decoration-thickness: 1px;
  text-underline-offset: 4px;
}

h1,
h2,
h3,
h4,
.btn,
.site-nav,
.footer-nav,
.price,
.admin-body button,
.admin-body input[type='submit'] {
  font-family: var(--font-heading);
  line-height: 1.1;
}

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

h1 {
  font-size: clamp(1.8rem, 3.5vw, 3rem);
  color: var(--color-white);
  max-width: 720px;
}

h2 {
  font-size: clamp(2rem, 4vw, 3.5rem);
  margin-bottom: 1rem;
}

h3 {
  font-size: 1.35rem;
}

.screen-reader-text {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: grid;
  grid-template-columns: minmax(90px, 1fr) auto minmax(90px, 1fr);
  align-items: center;
  gap: 2rem;
  padding: 0.5rem clamp(1rem, 4vw, 4rem);
  background: var(--color-light);
  border-bottom: 2px solid var(--color-turquoise);
}

.sprite-link {
  justify-self: start;
}

.brand-link {
  justify-self: center;
}

.sprite-link img {
  width: auto;
  max-height: 34px;
}

.brand-link img {
  width: auto;
  max-height: 48px;
}

.site-nav {
  justify-self: end;
  display: flex;
  align-items: center;
  gap: clamp(1rem, 2vw, 2rem);
  font-size: 0.9rem;
}

.site-nav a,
.footer-nav a {
  color: var(--color-dark);
  text-decoration: none;
}

.site-nav a.active {
  color: var(--color-teal);
}

.site-nav a.nav-cta {
  color: var(--color-orange);
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border: 1px solid rgba(10, 74, 92, 0.25);
  border-radius: 6px;
  background: var(--color-white);
}

.nav-toggle span:not(.screen-reader-text) {
  display: block;
  width: 22px;
  height: 2px;
  margin: 5px auto;
  background: var(--color-dark);
}

.hero {
  min-height: 420px;
  display: flex;
  align-items: center;
  padding-bottom: 1rem;
  background-color: var(--color-dark);
  background-position: center;
  background-size: cover;
  color: var(--color-white);
}

.hero::before,
.book-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(
    90deg,
    rgba(3, 31, 39, 0.92) 0%,
    rgba(10, 74, 92, 0.78) 32%,
    rgba(10, 74, 92, 0.34) 58%,
    rgba(10, 74, 92, 0) 100%
  );
}

.hero,
.book-hero {
  position: relative;
}

.hero-inner,
.section-inner {
  position: relative;
  width: min(1180px, calc(100% - 2rem));
  margin: 0 auto;
}

.hero .subhead,
.dark-band .subhead,
.book-hero .subhead {
  max-width: 620px;
  color: var(--color-mint);
  font-style: italic;
  font-size: clamp(1.05rem, 1.6vw, 1.35rem);
}

.script-line {
  display: block;
  margin-bottom: 0.4rem;
  color: var(--color-teal);
  font-family: var(--font-script);
  font-size: 26px;
  line-height: 1.2;
}

.dark .script-line,
.hero .script-line,
.book-hero .script-line,
.dark-band .script-line {
  color: var(--color-white);
  font-size: 22px;
}

.section {
  padding: clamp(4rem, 7vw, 7rem) 0;
}

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

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

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

.section-header {
  max-width: 820px;
  margin: 0 auto 2.5rem;
  text-align: center;
}

.section-header.left {
  margin-left: 0;
  text-align: left;
}

.book-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1.5rem;
}

.book-card,
.feature-card,
.admin-card {
  background: var(--color-white);
  border: 1px solid rgba(10, 74, 92, 0.12);
  border-radius: 8px;
  box-shadow: 0 14px 30px rgba(10, 74, 92, 0.08);
}

.book-card {
  display: flex;
  flex-direction: column;
  padding: 1.25rem;
}

.book-card img {
  width: 100%;
  aspect-ratio: 3 / 4;
  object-fit: cover;
  border-radius: 5px;
  margin-bottom: 1.2rem;
}

.book-card p {
  font-size: 1rem;
}

.book-card .subtitle {
  min-height: 3.3rem;
}

.fact {
  color: var(--color-teal);
  font-style: italic;
}

.card-actions,
.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: auto;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0.75rem 1.1rem;
  border-radius: 6px;
  border: 2px solid transparent;
  text-decoration: none;
  font-size: 0.92rem;
  white-space: nowrap;
}

.btn.primary {
  background: var(--color-orange);
  color: var(--color-white);
}

.btn.secondary {
  border-color: var(--color-teal);
  color: var(--color-teal);
  background: transparent;
}

.center-cta {
  margin-top: 2.5rem;
  text-align: center;
}

.center-cta p {
  color: var(--color-teal);
  font-style: italic;
}

.feature-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.05fr);
  gap: 3rem;
  align-items: center;
}

.feature-stack {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
}

.feature-card {
  min-height: 190px;
  padding: 1.25rem;
  transform: rotate(var(--tilt, 0deg));
}

.feature-card:nth-child(1) { --tilt: -2deg; }
.feature-card:nth-child(2) { --tilt: 1.5deg; }
.feature-card:nth-child(3) { --tilt: 2deg; }
.feature-card:nth-child(4) { --tilt: -1deg; }

.feature-card span {
  display: block;
  color: var(--color-teal);
  font-family: var(--font-heading);
}

.dark-band {
  padding: clamp(2.75rem, 5vw, 4.5rem) 0 1rem;
  text-align: center;
}

.dark-band .section-inner {
  max-width: 850px;
}

.site-footer {
  position: relative;
  padding: 3.5rem 1rem 4.5rem;
  background: var(--color-dark);
  color: var(--color-white);
  text-align: center;
}

.footer-center {
  display: grid;
  justify-items: center;
  gap: 1.1rem;
}

.footer-logo {
  width: min(240px, 70vw);
}

.footer-nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1rem 1.5rem;
}

.footer-nav a,
.series-link {
  color: var(--color-white);
}

.series-link {
  opacity: 0.86;
}

.laine-credit {
  position: absolute;
  right: 1rem;
  bottom: 1rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--color-white);
  font-size: 0.8rem;
  opacity: 0.3;
  text-decoration: none;
}

.laine-credit img {
  width: 34px;
}

.text-page {
  max-width: 880px;
  margin: 0 auto;
}

.text-page p {
  font-size: clamp(1.1rem, 2vw, 1.35rem);
}

.book-hero {
  min-height: 420px;
  display: flex;
  align-items: end;
  background-position: center;
  background-size: cover;
  color: var(--color-white);
}

.book-hero .hero-inner {
  padding-bottom: 1rem;
}

.hero + .section,
.book-hero + .section,
.dark-band + .section {
  padding-top: 1rem;
}

.intro-layout {
  display: grid;
  grid-template-columns: minmax(220px, 360px) minmax(0, 1fr);
  gap: 3rem;
  align-items: center;
}

.intro-layout img {
  border-radius: 8px;
  box-shadow: 0 20px 45px rgba(10, 74, 92, 0.18);
}

.fact-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.5rem;
}

.fact-block {
  padding: 1.5rem;
  background: var(--color-white);
  border-left: 5px solid var(--color-teal);
  border-radius: 0 8px 8px 0;
}

.pullquote {
  margin: 0;
  padding: 1.5rem 0 1.5rem 1.5rem;
  border-left: 6px solid var(--color-teal);
  color: var(--color-black);
  font-style: italic;
  font-size: clamp(1.1rem, 2vw, 1.35rem);
}

.caption {
  margin-top: 1rem;
  color: var(--color-teal);
  font-size: 0.95rem;
}

.purchase {
  display: grid;
  justify-items: center;
  gap: 1rem;
  text-align: center;
}

.price {
  color: var(--color-white);
  font-size: clamp(2.5rem, 5vw, 4rem);
}

.two-card-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.5rem;
  max-width: 820px;
  margin: 0 auto;
}

.back-link {
  display: block;
  margin-top: 2rem;
  text-align: center;
  color: var(--color-teal);
  font-style: italic;
}

.download-form {
  display: grid;
  gap: 1rem;
  max-width: 560px;
  margin-top: 2rem;
}

label {
  display: grid;
  gap: 0.35rem;
  color: var(--color-dark);
  font-family: var(--font-heading);
  font-size: 0.95rem;
}

input,
textarea,
select {
  width: 100%;
  padding: 0.8rem;
  border: 1px solid rgba(10, 74, 92, 0.28);
  border-radius: 6px;
  font: inherit;
}

textarea {
  min-height: 150px;
}

.library-feature {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 2rem;
  align-items: center;
  padding: 2rem;
  border-radius: 8px;
  background: var(--color-light);
}

.admin-body {
  background: var(--color-light);
  font-family: var(--font-body);
}

.admin-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  padding: 1rem 2rem;
  background: var(--color-dark);
  color: var(--color-white);
}

.admin-top a {
  color: var(--color-white);
  font-family: var(--font-heading);
  text-decoration: none;
}

.admin-top nav {
  display: flex;
  gap: 1rem;
}

.admin-main {
  width: min(1120px, calc(100% - 2rem));
  margin: 2rem auto 4rem;
}

.admin-main h1,
.admin-login h1,
.viewer-main h2,
.viewer-sidebar h1 {
  color: var(--color-black);
}

.admin-login {
  min-height: 100vh;
  display: grid;
  place-items: center;
  background: var(--color-light);
}

.admin-login form,
.admin-panel,
.admin-card {
  padding: 1.5rem;
  background: var(--color-white);
  border-radius: 8px;
}

.admin-login img {
  width: 280px;
  margin: 0 auto 1.5rem;
}

.admin-actions {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.admin-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.5rem;
}

.admin-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--color-white);
}

.admin-table th,
.admin-table td {
  padding: 0.75rem;
  border-bottom: 1px solid rgba(10, 74, 92, 0.12);
  text-align: left;
}

.form-section {
  margin-bottom: 1.5rem;
  padding: 1.25rem;
  background: var(--color-white);
  border-radius: 8px;
  border: 1px solid rgba(10, 74, 92, 0.12);
}

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

.full {
  grid-column: 1 / -1;
}

.notice {
  padding: 0.8rem 1rem;
  margin-bottom: 1rem;
  color: var(--color-dark);
  background: #d9f4ed;
  border-left: 4px solid var(--color-teal);
}

@media (max-width: 860px) {
  body {
    font-size: 17px;
  }

  .site-header {
    grid-template-columns: auto 1fr auto;
    gap: 1rem;
  }

  .sprite-link img {
    max-height: 28px;
  }

  .brand-link img {
    max-width: 52vw;
    max-height: 40px;
  }

  .nav-toggle {
    display: block;
    justify-self: end;
  }

  .site-nav {
    position: absolute;
    top: calc(100% + 2px);
    left: 0;
    right: 0;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 0.75rem 1rem;
    background: var(--color-light);
    border-bottom: 2px solid var(--color-turquoise);
  }

  .site-nav.is-open {
    display: flex;
  }

  .site-nav a {
    padding: 0.8rem 0;
  }

  .hero,
  .book-hero {
    min-height: 380px;
  }

  .book-grid,
  .feature-layout,
  .intro-layout,
  .fact-grid,
  .two-card-grid,
  .library-feature,
  .admin-grid,
  .form-grid {
    grid-template-columns: 1fr;
  }

  .feature-card {
    transform: none;
  }

  .laine-credit {
    position: static;
    justify-content: center;
    margin-top: 2rem;
  }
}