/* /static/css/style.css */

:root {
  --bg: #050509;
  --bg-alt: #101018;
  --accent: #ff4343;
  --accent-soft: rgba(255, 67, 67, 0.12);
  --text: #f5f5f7;
  --muted: #b3b3c3;
  --border: #262636;
  --radius-lg: 1.5rem;
  --radius-sm: 0.6rem;
  --shadow-soft: 0 18px 40px rgba(0, 0, 0, 0.35);
  --font-sans: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

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

body {
  margin: 0;
  font-family: var(--font-sans);
  background: radial-gradient(circle at top left, #1a1a2c 0, #050509 55%);
  color: var(--text);
  line-height: 1.7;
}

a {
  color: var(--accent);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

.container {
  width: min(1120px, 100% - 3rem);
  margin: 0 auto;
}

.narrow {
  width: min(760px, 100% - 3rem);
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  backdrop-filter: blur(14px);
  background: linear-gradient(to bottom, rgba(5,5,10,0.95), rgba(5,5,10,0.7));
  border-bottom: 1px solid var(--border);
  z-index: 20;
}

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

.logo {
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text);
  font-size: 0.95rem;
}

.logo span {
  color: var(--accent);
}

.main-nav a {
  margin-left: 1.5rem;
  font-size: 0.9rem;
  color: var(--muted);
}

.main-nav a.active,
.main-nav a:hover {
  color: var(--text);
}

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

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.3fr) minmax(0, 1fr);
  gap: 2.5rem;
  align-items: center;
}

.hero h1 {
  font-size: clamp(2.2rem, 3vw, 2.8rem);
  margin-bottom: 1rem;
}

.hero p {
  color: var(--muted);
}

.hero-media img {
  width: 100%;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-soft);
  object-fit: cover;
}

.hero-cta {
  margin-top: 1.8rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.9rem;
}

.btn {
  display: inline-block;
  padding: 0.75rem 1.4rem;
  border-radius: 999px;
  font-size: 0.9rem;
  border: 1px solid transparent;
  cursor: pointer;
}

.btn.primary {
  background: var(--accent);
  color: #fff;
  box-shadow: var(--shadow-soft);
}

.btn.ghost {
  background: transparent;
  color: var(--text);
  border-color: var(--border);
}

.section-heading {
  text-align: center;
  margin-bottom: 2.2rem;
}

.section-heading p {
  color: var(--muted);
}

.highlights {
  padding: 1rem 0 3.5rem;
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.7rem;
}

.card {
  background: var(--bg-alt);
  border-radius: var(--radius-lg);
  padding: 1.6rem 1.5rem;
  border: 1px solid var(--border);
  box-shadow: 0 10px 24px rgba(0,0,0,0.35);
}

.card h3,
.card h2 {
  margin-top: 0;
}

.card p {
  color: var(--muted);
}

.card-link {
  display: inline-block;
  margin-top: 0.8rem;
  font-size: 0.88rem;
}

.page-hero {
  padding: 3.5rem 0 2.5rem;
}

.page-hero .lead {
  color: var(--muted);
}

.rich-text h2 {
  margin-top: 2rem;
}

.rich-text p {
  color: var(--muted);
}

.book-cta {
  margin: 2rem 0;
  padding: 1.5rem;
  border-radius: var(--radius-lg);
  background: var(--accent-soft);
  border: 1px solid var(--border);
}

.split-section {
  padding: 3rem 0 3.5rem;
}

.split-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 2.2rem;
}

.bullet-list,
.numbered-list {
  margin: 0;
  padding-left: 1.1rem;
  color: var(--muted);
}

.pillars dt {
  font-weight: 600;
  margin-top: 1.4rem;
}

.pillars dd {
  margin: 0.3rem 0 0;
  color: var(--muted);
}

.site-footer {
  border-top: 1px solid var(--border);
  padding: 1.5rem 0 2rem;
  margin-top: 2rem;
  font-size: 0.85rem;
  color: var(--muted);
}

.footer-grid {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.footer-links a {
  margin-left: 1.1rem;
}

@media (max-width: 768px) {
  .hero {
    padding-top: 3rem;
  }
  .hero-grid {
    grid-template-columns: 1fr;
  }
  .header-inner {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.5rem;
  }
}