/* Henrik Helps Static Website Styles */
:root {
  --bg-color: #f8fafc;
  --card-bg: #ffffff;
  --text-main: #082F73
  ;
  --text-muted: #475569;
  --primary: #6073A6;
  --primary-hover: #b1b4bb;
  --accent-bg: #eff6ff;
  --border-color: #cbd5e1;
  --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --radius: 10px;
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background-color: var(--bg-color);
  color: var(--text-main);
  line-height: 1.6;
  padding: 40px 20px;
}

.container {
  max-width: 900px;
  margin: 0 auto;
}

.header {
  text-align: center;
  margin-bottom: 36px;
}

.book-title {
  font-size: 2.25rem;
  font-weight: 800;
  color: var(--text-main);
  line-height: 1.2;
}

.subtitle {
  font-size: 1.1rem;
  color: var(--text-muted);
  margin-top: 6px;
}

.author {
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--text-main);
  margin-top: 10px;
}

.imprint {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--text-muted);
  margin-top: 4px;
}

.content-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
}

@media (min-width: 768px) {
  .content-grid {
    grid-template-columns: 300px 1fr;
    align-items: start;
  }
}

.cover-wrapper {
  text-align: center;
}

.book-cover {
  width: 100%;
  max-width: 300px;
  border-radius: var(--radius);
  box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.18);
  background-color: #e2e8f0;
  aspect-ratio: 2 / 3;
  object-fit: cover;
}

.details-wrapper {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.description {
  font-size: 1.1rem;
  color: #334155;
}

.card {
  background: var(--card-bg);
  padding: 24px;
  border-radius: var(--radius);
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow);
}

.card h2 {
  font-size: 1.2rem;
  margin-bottom: 12px;
  color: var(--text-main);
}

.highlight-card {
  background-color: var(--accent-bg);
  border-color: #93c5fd;
}

.store-links {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.btn {
  display: block;
  text-align: center;
  padding: 12px 18px;
  border-radius: 6px;
  font-weight: 600;
  text-decoration: none;
  transition: background-color 0.15s ease;
}

.btn-amazon {
 background-color: #ff9900;
  color: #111;
}

.btn-amazon:hover {
  background-color: #e68a00;
}

.btn-store {
  background-color: #f1f5f9;
  color: #334155;
  border: 1px solid var(--border-color);
}

.btn-store:hover {
  background-color: #e2e8f0;
}

.btn-download {
  background-color: #c9def4;
   color: #334155;
  margin-top: 10px;
}

.btn-download:hover {
  background-color: var(--primary-hover);
}

.email-link {
  color: var(--primary);
  font-weight: 600;
  text-decoration: none;
}

.email-link:hover {
  text-decoration: underline;
}

.footer {
  text-align: center;
  margin-top: 48px;
  padding-top: 20px;
  border-top: 1px solid var(--border-color);
  font-size: 0.85rem;
  color: var(--text-muted);
}