:root {
  --bg: #ffffff;
  --bg-alt: #f5f7fa;
  --accent: #3B9716;
  --accent-soft: rgba(59,151,22,0.18);
  --accent-strong: #3B9716;
  --text: #000000;
  --muted: #555555;
  --border: #cccccc;
  --danger: #d1192a;#3B9716
  --shadow-soft: 0 4px 12px rgba(0,0,0,0.08);
  --radius-lg: 1.5rem;
  --radius-md: 1rem;
  --radius-sm: 0.5rem;
  --font-main: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

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

html,
body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-main);
  line-height: 1.6;
}

/* Containers & layout */

.container {
  width: 100%;
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 1.25rem;
}

.section {
  padding: 3rem 0;
}

.section-dark {
  background: var(--bg-alt);
}

/* Header / Nav */

.site-header {
  position: sticky;
  top: 0;
  z-index: 999;
  background: rgba(255,255,255,0.8);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid #ddd;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.85rem 0;
}

.site-title {
  font-weight: 700;
  font-size: 1.3rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent-strong);
  text-decoration: none;
}

.site-nav a {
  margin-left: 1.5rem;
  font-size: 0.95rem;
  color: var(--accent-strong);
  text-decoration: none;
  position: relative;
}

.site-nav a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -0.3rem;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--accent), var(--accent-strong));
  transition: width 0.2s ease-out;
}

.site-nav a:hover {
  color: var(--text);
}

.site-nav a:hover::after {
  width: 100%;
}

/* Hero */

.hero {
  padding: 4.5rem 0 3.5rem;
}

.hero-inner {
  display: grid;
  grid-template-columns: minmax(0, 3fr) minmax(0, 2.2fr);
  gap: 3rem;
  align-items: center;
}

.hero-text h1 {
  font-size: 2.6rem;
  margin: 0 0 1rem;
  color: var(--text);
}

.hero-text slh1 {
  font-size: 3.5rem;
  margin: 0 0 1rem;
  color: var(--accent-strong);
}


.hero-tagline {
  font-size: 1.1rem;
  font-weight: 500;
  color: var(--accent-strong);
  margin: 0 0 1rem;
}

.hero-subtext {
  font-size: 0.98rem;
  color: var(--muted);
  max-width: 34rem;
}

.hero-actions {
  margin-top: 2rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.9rem;
}

/* Buttons */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.7rem 1.4rem;
  border-radius: 999px;
  border: 1px solid transparent;
  font-size: 0.95rem;
  font-weight: 500;
  text-decoration: none;
  cursor: pointer;
  box-shadow: var(--shadow-soft);
}

.btn.primary {
  background: radial-gradient(circle at top left, var(--accent-strong), var(--accent));
  color: #ffffff;
}

.btn.ghost {
  background: rgba(255,255,255,0.9);
  color: var(--accent);
  border: 1px solid var(--accent-soft);
}

.btn:hover {
  filter: brightness(1.08);
}

/* Hero cover & book image */

.hero-cover {
  display: flex;
  justify-content: center;
}

.book-cover-image {
  display: block;
  max-width: 190px;
  width: 100%;
  height: auto;
  border-radius: 1rem;
  box-shadow: 0 10px 28px rgba(0,0,0,0.15);
  border: 1px solid rgba(0,0,0,0.05);
}

.book-cover-main {
  display: block;
  max-width: 300px;
  width: 100%;
  height: auto;
  border-radius: 0rem;
  box-shadow: 0 0px 0px rgba(0,0,0,0.15);
  border: 0px solid rgba(0,0,0,0.05);
}

/* Cards */

.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 1.6rem;
}

.card {
  background: #ffffff;
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  padding: 1.4rem 1.5rem;
  box-shadow: 0 6px 16px rgba(0,0,0,0.08);
}

.card h3 {
  margin-top: 0;
  margin-bottom: 0.6rem;
  color: var(--text);
}

.card p {
  font-size: 0.95rem;
  color: var(--muted);
}

.card-link {
  display: inline-block;
  margin-top: 0.6rem;
  font-size: 0.9rem;
  color: var(--accent-strong);
  text-decoration: none;
}

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

/* Page basics */

h1,
h2,
h3,
h4 {
  line-height: 1.2;
  color: var(--text);
}

h1 {
  margin-top: 0;
  margin-bottom: 1rem;
}

p {
  margin-top: 0.4rem;
  color: var(--text);
}

.lead {
  font-size: 1.02rem;
  color: var(--accent-strong);
}

/* Books list */

.books-list h3 {
  margin-top: 2rem;
  color: var(--text);
}

.books-list h3:first-of-type {
  margin-top: 1rem;
}

.book-header {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: 40px;
  margin-bottom: 20px;
}

.book-cover {
  width: 100px;
  height: auto;
  border-radius: 6px;
  box-shadow: 0 0 8px rgba(0,0,0,0.12);
}

.books-list p {
  margin-bottom: 12px;
}

.books-list > p {
  margin-bottom: 12px; /* corrected from 100px */
}

/* Footer */

.site-footer {
  padding: 1.8rem 0 2rem;
  border-top: 1px solid #ddd;
  background: var(--bg-alt);
}

.footer-inner {
  text-align: center;
  font-size: 0.85rem;
  color: var(--muted);
}

/* Responsive */

@media (max-width: 800px) {
  .hero-inner {
    grid-template-columns: 1fr;
    text-align: left;
  }

  .hero-cover {
    justify-content: flex-start;
    margin-top: 2rem;
  }

  .book-cover-image {
    max-width: 160px;
  }

  .site-nav a {
    margin-left: 0.9rem;
  }
}

@media (max-width: 560px) {
  .header-inner {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.4rem;
  }

  .site-nav {
    display: flex;
    flex-wrap: wrap;
    gap: 0.6rem;
  }

  .site-nav a {
    margin-left: 0;
  }

  .hero {
    padding-top: 3.5rem;
  }

  .hero-text h1 {
    font-size: 2.1rem;
  }
}

.book-header span {
  font-weight: 700;
  font-size: 1.4rem;
  color: var(--text);
}

.hide-hash {
  color: white;   /* blends into white background */
}