:root {
  --green: #166534;
  --green-dark: #14532d;
  --green-light: #dcfce7;
  --amber: #d97706;
  --amber-light: #fef3c7;
  --white: #ffffff;
  --gray-50: #f9fafb;
  --gray-100: #f3f4f6;
  --gray-200: #e5e7eb;
  --gray-600: #4b5563;
  --gray-700: #374151;
  --gray-900: #111827;
  --max-width: 1200px;
  --radius: 12px;
  --shadow: 0 4px 16px rgba(0,0,0,0.08);
  --shadow-lg: 0 12px 32px rgba(0,0,0,0.12);
}

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

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  color: var(--gray-900);
  line-height: 1.7;
  background: var(--white);
  -webkit-font-smoothing: antialiased;
}

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

a { color: var(--green); text-decoration: none; transition: color .2s; }
a:hover { color: var(--amber); }

.container { max-width: var(--max-width); margin: 0 auto; padding: 0 1.5rem; }

/* Header */
.site-header {
  background: var(--white);
  border-bottom: 1px solid var(--gray-200);
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(8px);
  background: rgba(255,255,255,0.95);
}
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 1.5rem;
  max-width: var(--max-width);
  margin: 0 auto;
}
.logo {
  font-weight: 800;
  font-size: 1.25rem;
  color: var(--green-dark);
  letter-spacing: -0.02em;
}
.nav-links { display: flex; gap: 2rem; list-style: none; align-items: center; }
.nav-links a {
  color: var(--gray-700);
  font-weight: 500;
  font-size: 0.95rem;
}
.nav-links a:hover { color: var(--green); }
.nav-cta {
  background: var(--amber);
  color: white !important;
  padding: 0.5rem 1.25rem;
  border-radius: 8px;
  font-weight: 600;
}
.nav-cta:hover { background: var(--green); color: white !important; }
.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  font-size: 1.5rem;
  color: var(--green-dark);
}

/* Hero */
.hero {
  background: linear-gradient(135deg, var(--green-dark) 0%, var(--green) 100%);
  color: white;
  padding: 5rem 0 6rem;
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background: url('https://images.unsplash.com/photo-1568605114967-8130f3a36994?w=1600&q=80') center/cover;
  opacity: 0.15;
}
.hero-content {
  position: relative;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.5rem;
}
.hero h1 {
  font-size: 3.25rem;
  line-height: 1.1;
  font-weight: 800;
  margin-bottom: 1.5rem;
  letter-spacing: -0.03em;
}
.hero .subtitle {
  font-size: 1.25rem;
  opacity: 0.9;
  margin-bottom: 2rem;
  font-weight: 400;
}
.hero-badge {
  display: inline-block;
  background: rgba(217, 119, 6, 0.2);
  color: #fde68a;
  border: 1px solid rgba(253, 230, 138, 0.3);
  padding: 0.35rem 1rem;
  border-radius: 999px;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 1.5rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}
.book-cover {
  background: linear-gradient(135deg, var(--amber) 0%, #92400e 100%);
  border-radius: var(--radius);
  padding: 3rem 2rem;
  box-shadow: var(--shadow-lg);
  text-align: center;
  transform: rotate(-2deg);
  transition: transform .4s;
  position: relative;
}
.book-cover:hover { transform: rotate(0deg) scale(1.02); }
.book-cover h2 {
  font-size: 1.75rem;
  font-weight: 800;
  margin-bottom: 0.5rem;
  letter-spacing: -0.02em;
}
.book-cover .by { font-size: 0.9rem; opacity: 0.85; margin-top: 1rem; }
.book-cover .tag {
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  opacity: 0.7;
  margin-bottom: 1rem;
}

/* Buttons */
.btn {
  display: inline-block;
  padding: 0.9rem 1.75rem;
  border-radius: 8px;
  font-weight: 600;
  font-size: 1rem;
  cursor: pointer;
  border: none;
  transition: all .2s;
  text-align: center;
}
.btn-primary { background: var(--amber); color: white; }
.btn-primary:hover { background: white; color: var(--green-dark); transform: translateY(-2px); }
.btn-secondary { background: white; color: var(--green-dark); }
.btn-secondary:hover { background: var(--amber); color: white; transform: translateY(-2px); }
.btn-outline {
  background: transparent;
  color: white;
  border: 2px solid white;
}
.btn-outline:hover { background: white; color: var(--green-dark); }
.btn-group { display: flex; gap: 1rem; flex-wrap: wrap; }

/* Sections */
section { padding: 5rem 0; }
.section-title {
  font-size: 2.5rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 1rem;
  color: var(--gray-900);
}
.section-subtitle {
  font-size: 1.15rem;
  color: var(--gray-600);
  margin-bottom: 3rem;
  max-width: 700px;
}
.section-eyebrow {
  color: var(--amber);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-size: 0.85rem;
  margin-bottom: 0.75rem;
}

/* Cards / Grid */
.grid { display: grid; gap: 2rem; }
.grid-2 { grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); }
.grid-3 { grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }
.card {
  background: white;
  border: 1px solid var(--gray-200);
  border-radius: var(--radius);
  padding: 2rem;
  transition: all .3s;
}
.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--green-light);
}
.card h3 {
  font-size: 1.35rem;
  margin-bottom: 0.75rem;
  color: var(--green-dark);
  font-weight: 700;
}
.card .num {
  display: inline-block;
  background: var(--green-light);
  color: var(--green-dark);
  font-weight: 800;
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 8px;
  text-align: center;
  line-height: 2.5rem;
  margin-bottom: 1rem;
  font-size: 1.1rem;
}
.card-image {
  height: 200px;
  background-size: cover;
  background-position: center;
  border-radius: 8px;
  margin-bottom: 1.25rem;
}

/* Featured / Alt sections */
.bg-alt { background: var(--gray-50); }
.bg-green { background: var(--green-dark); color: white; }
.bg-green .section-title, .bg-green h3 { color: white; }
.bg-green .section-subtitle { color: rgba(255,255,255,0.85); }
.bg-amber-light { background: var(--amber-light); }

/* Feature list */
.feature-list { list-style: none; margin: 1.5rem 0; }
.feature-list li {
  padding: 0.75rem 0 0.75rem 2rem;
  position: relative;
  border-bottom: 1px solid var(--gray-200);
}
.feature-list li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--green);
  font-weight: 800;
  font-size: 1.2rem;
}

/* CTA */
.cta-section {
  background: linear-gradient(135deg, var(--amber) 0%, #b45309 100%);
  color: white;
  text-align: center;
  padding: 5rem 0;
}
.cta-section h2 {
  font-size: 2.5rem;
  font-weight: 800;
  margin-bottom: 1rem;
}
.cta-section p { font-size: 1.2rem; opacity: 0.95; margin-bottom: 2rem; }

/* Article / page hero */
.page-hero {
  background: var(--green-dark);
  color: white;
  padding: 4rem 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.page-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: url('https://images.unsplash.com/photo-1564013799919-ab600027ffc6?w=1600&q=80') center/cover;
  opacity: 0.12;
}
.page-hero h1 {
  position: relative;
  font-size: 3rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 1rem;
}
.page-hero p {
  position: relative;
  font-size: 1.2rem;
  opacity: 0.9;
  max-width: 700px;
  margin: 0 auto;
}

/* Prose */
.prose {
  max-width: 760px;
  margin: 0 auto;
  font-size: 1.1rem;
  line-height: 1.85;
  color: var(--gray-700);
}
.prose h2 {
  font-size: 2rem;
  margin: 3rem 0 1rem;
  color: var(--gray-900);
  font-weight: 800;
  letter-spacing: -0.02em;
}
.prose h3 {
  font-size: 1.4rem;
  margin: 2rem 0 0.75rem;
  color: var(--green-dark);
  font-weight: 700;
}
.prose p { margin-bottom: 1.25rem; }
.prose ul, .prose ol { margin: 1.25rem 0 1.25rem 1.5rem; }
.prose li { margin-bottom: 0.5rem; }
.prose blockquote {
  border-left: 4px solid var(--amber);
  padding: 1rem 1.5rem;
  background: var(--amber-light);
  margin: 2rem 0;
  font-style: italic;
  border-radius: 0 8px 8px 0;
}
.prose strong { color: var(--gray-900); }

/* Author */
.author-hero { display: grid; grid-template-columns: 1fr 2fr; gap: 3rem; align-items: center; padding: 4rem 0; }
.author-avatar {
  width: 100%;
  aspect-ratio: 1;
  background: linear-gradient(135deg, var(--green) 0%, var(--amber) 100%);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 5rem;
  color: white;
  font-weight: 800;
  box-shadow: var(--shadow-lg);
}
.properties-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 1.5rem; margin-top: 2rem; }
.property-link {
  display: block;
  padding: 1.5rem;
  background: white;
  border: 2px solid var(--gray-200);
  border-radius: var(--radius);
  transition: all .2s;
  color: var(--gray-900);
}
.property-link:hover {
  border-color: var(--amber);
  transform: translateY(-2px);
  color: var(--gray-900);
}
.property-link strong { color: var(--green-dark); display: block; margin-bottom: 0.25rem; font-size: 1.05rem; }
.property-link span { color: var(--gray-600); font-size: 0.9rem; }

/* Blog */
.blog-list { display: grid; gap: 2rem; }
.blog-card {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 2rem;
  padding: 0;
  overflow: hidden;
  background: white;
  border: 1px solid var(--gray-200);
  border-radius: var(--radius);
  transition: all .3s;
}
.blog-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-lg); }
.blog-card .img { background-size: cover; background-position: center; min-height: 200px; }
.blog-card .body { padding: 2rem 2rem 2rem 0; }
.blog-card h3 { font-size: 1.35rem; color: var(--green-dark); margin-bottom: 0.5rem; }
.blog-card h3 a { color: inherit; }
.blog-meta { color: var(--gray-600); font-size: 0.875rem; margin-bottom: 0.75rem; }
.blog-excerpt { color: var(--gray-700); }

/* Footer */
.site-footer {
  background: var(--gray-900);
  color: var(--gray-200);
  padding: 4rem 0 2rem;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 2rem;
  margin-bottom: 3rem;
}
.footer-grid h4 { color: white; margin-bottom: 1rem; font-size: 1rem; font-weight: 700; }
.footer-grid ul { list-style: none; }
.footer-grid li { margin-bottom: 0.5rem; }
.footer-grid a { color: var(--gray-200); font-size: 0.95rem; }
.footer-grid a:hover { color: var(--amber); }
.footer-bottom {
  border-top: 1px solid #374151;
  padding-top: 2rem;
  text-align: center;
  color: #9ca3af;
  font-size: 0.875rem;
}

/* Forms */
.contact-form { max-width: 600px; margin: 0 auto; display: grid; gap: 1.25rem; }
.contact-form label { font-weight: 600; color: var(--gray-700); display: block; margin-bottom: 0.5rem; }
.contact-form input, .contact-form textarea, .contact-form select {
  width: 100%;
  padding: 0.85rem 1rem;
  border: 2px solid var(--gray-200);
  border-radius: 8px;
  font-size: 1rem;
  font-family: inherit;
  transition: border-color .2s;
}
.contact-form input:focus, .contact-form textarea:focus {
  outline: none;
  border-color: var(--green);
}
.contact-form textarea { resize: vertical; min-height: 140px; }

/* Stats */
.stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 2rem; margin: 3rem 0; }
.stat { text-align: center; }
.stat .num { font-size: 3rem; font-weight: 800; color: var(--amber); display: block; }
.stat .label { color: var(--gray-600); font-size: 0.95rem; margin-top: 0.25rem; }

/* Mobile */
@media (max-width: 880px) {
  .nav-toggle { display: block; }
  .nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: white;
    flex-direction: column;
    padding: 1rem 1.5rem;
    border-bottom: 1px solid var(--gray-200);
    gap: 0.5rem;
  }
  .nav-links.open { display: flex; }
  .hero-content { grid-template-columns: 1fr; gap: 3rem; text-align: center; }
  .hero h1 { font-size: 2.25rem; }
  .author-hero { grid-template-columns: 1fr; text-align: center; }
  .author-avatar { max-width: 200px; margin: 0 auto; }
  .blog-card { grid-template-columns: 1fr; }
  .blog-card .img { min-height: 220px; }
  .blog-card .body { padding: 0 1.5rem 1.5rem; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .section-title, .page-hero h1, .cta-section h2 { font-size: 2rem; }
  section { padding: 3.5rem 0; }
  .btn-group { justify-content: center; }
}