/* Managing Price Website Styles */

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  line-height: 1.7;
  color: #2d3748;
  background-color: #f7f7f5;
}

/* Layout */
.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Header & Navigation */
header {
  background: #fff;
  border-bottom: 1px solid #e8e8e6;
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 0;
}

.logo {
  font-size: 1.25rem;
  font-weight: 600;
  color: #991111;
  text-decoration: none;
  letter-spacing: -0.02em;
}

nav ul {
  display: flex;
  list-style: none;
  gap: 8px;
}

nav a {
  display: block;
  padding: 8px 16px;
  color: #4a5568;
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
  border-radius: 6px;
  transition: background-color 0.2s, color 0.2s;
}

nav a:hover {
  background-color: #f7f7f5;
  color: #1a202c;
}

nav a.active {
  background-color: #991111;
  color: #fff;
}

/* Hero Section */
.hero {
  padding: 80px 0;
  background: linear-gradient(180deg, #fff 0%, #f7f7f5 100%);
}

.hero-content {
  display: grid;
  grid-template-columns: 300px 1fr;
  gap: 64px;
  align-items: start;
}

.book-cover {
  position: relative;
}

.book-cover img {
  width: 100%;
  max-width: 300px;
  height: auto;
  border-radius: 4px;
  box-shadow:
    0 25px 50px -12px rgba(0, 0, 0, 0.25),
    0 0 0 1px rgba(0, 0, 0, 0.05);
}

.book-cover a {
  display: block;
}

.hero-text h1 {
  font-size: 2.75rem;
  font-weight: 700;
  color: #1a202c;
  line-height: 1.2;
  margin-bottom: 8px;
  letter-spacing: -0.02em;
}

.hero-text .subtitle {
  font-size: 1.25rem;
  color: #718096;
  margin-bottom: 32px;
  font-weight: 400;
}

.hero-text .description {
  font-size: 1.1rem;
  color: #4a5568;
  margin-bottom: 24px;
}

.feature-list {
  list-style: none;
  margin-bottom: 32px;
}

.feature-list li {
  position: relative;
  padding-left: 28px;
  margin-bottom: 12px;
  color: #4a5568;
}

.feature-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 8px;
  height: 8px;
  background-color: #4a5568;
  border-radius: 50%;
}

.cta-button {
  display: inline-block;
  padding: 14px 32px;
  background-color: #991111;
  color: #fff;
  text-decoration: none;
  font-weight: 600;
  font-size: 1rem;
  border-radius: 8px;
  transition: background-color 0.2s, transform 0.2s;
}

.cta-button:hover {
  background-color: #822727;
  transform: translateY(-1px);
}

/* Sections */
section {
  padding: 64px 0;
}

section.alt-bg {
  background-color: #fff;
}

.section-title {
  font-size: 1.75rem;
  font-weight: 700;
  color: #1a202c;
  margin-bottom: 32px;
  letter-spacing: -0.01em;
}

.section-title.center {
  text-align: center;
}

/* Authors Section */
.authors {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 48px;
}

.author h3 {
  font-size: 1.25rem;
  font-weight: 600;
  color: #1a202c;
  margin-bottom: 12px;
}

.author p {
  color: #4a5568;
  line-height: 1.8;
}

/* Endorsements */
.endorsements {
  display: grid;
  gap: 32px;
}

.endorsement {
  background: #fff;
  padding: 32px;
  border-radius: 12px;
  border: 1px solid #e8e8e6;
}

.endorsement blockquote {
  font-size: 1.1rem;
  color: #4a5568;
  font-style: italic;
  line-height: 1.8;
  margin-bottom: 16px;
}

.endorsement blockquote::before {
  content: "\201C";
  font-size: 3rem;
  color: #991111;
  opacity: 0.3;
  line-height: 0;
  vertical-align: -0.5em;
  margin-right: 4px;
}

.endorsement cite {
  display: block;
  font-style: normal;
  font-weight: 600;
  color: #1a202c;
}

.endorsement cite span {
  font-weight: 400;
  color: #718096;
}

/* Buy Page */
.buy-section {
  padding: 80px 0;
}

.buy-content {
  max-width: 600px;
  margin: 0 auto;
  text-align: center;
}

.buy-content h1 {
  font-size: 2rem;
  font-weight: 700;
  color: #1a202c;
  margin-bottom: 16px;
}

.buy-content .intro {
  color: #4a5568;
  margin-bottom: 40px;
  font-size: 1.1rem;
}

.vendor-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-bottom: 40px;
}

.vendor-list a {
  display: block;
  padding: 20px 32px;
  background: #fff;
  border: 1px solid #e8e8e6;
  border-radius: 8px;
  color: #1a202c;
  text-decoration: none;
  font-weight: 600;
  font-size: 1.1rem;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.vendor-list a:hover {
  border-color: #991111;
  box-shadow: 0 4px 12px rgba(155, 44, 44, 0.15);
}

.affiliate-note {
  font-size: 0.85rem;
  color: #718096;
  max-width: 500px;
  margin: 0 auto;
}

/* Table of Contents */
.toc-section {
  padding: 64px 0;
}

.toc-intro {
  text-align: center;
  max-width: 700px;
  margin: 0 auto 48px;
}

.toc-intro h1 {
  font-size: 2rem;
  font-weight: 700;
  color: #1a202c;
  margin-bottom: 12px;
}

.toc-intro p {
  color: #718096;
}

.toc-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px;
}

.toc-phase {
  background: #fff;
  border-radius: 12px;
  border: 1px solid #e8e8e6;
  padding: 32px;
}

.toc-phase h2 {
  font-size: 1.25rem;
  font-weight: 700;
  color: #991111;
  margin-bottom: 20px;
  padding-bottom: 12px;
  border-bottom: 2px solid #f7f7f5;
}

.toc-phase ol {
  list-style: none;
  counter-reset: item;
}

.toc-phase > ol > li {
  counter-increment: item;
  margin-bottom: 8px;
  color: #4a5568;
}

.toc-phase > ol > li::before {
  content: counter(item) ". ";
  font-weight: 600;
  color: #718096;
  margin-right: 4px;
}

.toc-sublist {
  margin-left: 24px;
  margin-top: 4px;
  list-style: disc;
  color: #718096;
}

.toc-sublist li {
  margin-bottom: 4px;
  font-size: 0.9rem;
}

.toc-additional {
  margin-top: 32px;
  padding-top: 32px;
  border-top: 1px solid #e8e8e6;
}

.toc-additional h2 {
  font-size: 1.25rem;
  font-weight: 700;
  color: #1a202c;
  margin-bottom: 20px;
}

.toc-additional ul {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 12px;
}

.toc-additional li {
  color: #4a5568;
  padding-left: 20px;
  position: relative;
}

.toc-additional li::before {
  content: "—";
  position: absolute;
  left: 0;
  color: #991111;
}

/* Resources Page */
.resources-section {
  padding: 64px 0;
}

.resources-intro {
  text-align: center;
  max-width: 700px;
  margin: 0 auto 48px;
}

.resources-intro h1 {
  font-size: 2rem;
  font-weight: 700;
  color: #1a202c;
  margin-bottom: 12px;
}

.resources-intro p {
  color: #718096;
}

.resources-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.resource-category {
  background: #fff;
  border-radius: 12px;
  border: 1px solid #e8e8e6;
  padding: 32px;
}

.resource-category h2 {
  font-size: 1.1rem;
  font-weight: 700;
  color: #1a202c;
  margin-bottom: 20px;
  padding-bottom: 12px;
  border-bottom: 2px solid #f7f7f5;
}

.resource-category ul {
  list-style: none;
}

.resource-category li {
  margin-bottom: 12px;
}

.resource-category a {
  color: #4a5568;
  text-decoration: none;
  transition: color 0.2s;
}

.resource-category a:hover {
  color: #991111;
}

/* Contact Page */
.contact-section {
  padding: 80px 0;
  min-height: 60vh;
}

.contact-content {
  max-width: 600px;
  margin: 0 auto;
  text-align: center;
}

.contact-content h1 {
  font-size: 2rem;
  font-weight: 700;
  color: #1a202c;
  margin-bottom: 16px;
}

.contact-content .intro {
  color: #4a5568;
  margin-bottom: 40px;
  font-size: 1.1rem;
}

.contact-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.contact-list a {
  display: block;
  padding: 20px 32px;
  background: #fff;
  border: 1px solid #e8e8e6;
  border-radius: 8px;
  color: #1a202c;
  text-decoration: none;
  font-weight: 500;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.contact-list a:hover {
  border-color: #991111;
  box-shadow: 0 4px 12px rgba(155, 44, 44, 0.15);
}

.contact-list .name {
  font-weight: 600;
  display: block;
  margin-bottom: 4px;
}

.contact-list .email {
  color: #718096;
  font-size: 0.9rem;
}

/* Footer */
footer {
  background: #1a202c;
  color: #a0aec0;
  padding: 40px 0;
  margin-top: 64px;
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.footer-inner p {
  font-size: 0.9rem;
}

.footer-links {
  display: flex;
  gap: 24px;
  list-style: none;
}

.footer-links a {
  color: #a0aec0;
  text-decoration: none;
  font-size: 0.9rem;
  transition: color 0.2s;
}

.footer-links a:hover {
  color: #fff;
}

/* Responsive Design */
@media (max-width: 900px) {
  .hero-content {
    grid-template-columns: 1fr;
    gap: 48px;
    text-align: center;
  }

  .book-cover {
    order: -1;
  }

  .book-cover img {
    max-width: 250px;
    margin: 0 auto;
  }

  .hero-text h1 {
    font-size: 2.25rem;
  }

  .feature-list li {
    text-align: left;
  }

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

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

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

@media (max-width: 768px) {
  .header-inner {
    flex-direction: column;
    gap: 16px;
  }

  nav ul {
    flex-wrap: wrap;
    justify-content: center;
  }

  nav a {
    padding: 6px 12px;
    font-size: 0.85rem;
  }

  .hero {
    padding: 48px 0;
  }

  .hero-text h1 {
    font-size: 1.875rem;
  }

  section {
    padding: 48px 0;
  }

  .footer-inner {
    flex-direction: column;
    gap: 16px;
    text-align: center;
  }
}

/* Print Styles */
@media print {
  header, footer, .cta-button {
    display: none;
  }

  body {
    background: #fff;
    color: #000;
  }

  .container {
    max-width: 100%;
  }
}