/* --- Variables --- */
:root {
  --color-bg: #f2f5f0;
  --color-surface: #ffffff;
  --color-surface-2: #e8ede6;
  --color-text: #1e261c;
  --color-text-muted: #5a6656;
  --color-accent: #5a8c32;
  --color-accent-hover: #6b9e3d;
  --color-gold: #c49000;
  --color-silver: #6b7b6e;
  --font-heading: "Playfair Display", Georgia, serif;
  --font-body: "Montserrat", system-ui, sans-serif;
  --radius: 12px;
  --radius-lg: 20px;
  --shadow: 0 8px 32px rgba(30, 38, 28, 0.08);
  --transition: 0.25s ease;
}

/* --- Reset & base --- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
}
a { color: var(--color-accent); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--color-accent-hover); }
img { max-width: 100%; height: auto; display: block; }
.container { width: 100%; max-width: 960px; margin: 0 auto; padding: 0 20px; }

/* --- Header --- */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 16px 0;
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(30, 38, 28, 0.08);
}
.header-inner { display: flex; align-items: center; justify-content: space-between; }
.logo {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.35rem;
  color: var(--color-text);
}
.logo:hover { color: var(--color-accent); }
.nav { display: flex; gap: 28px; }
.nav a {
  color: var(--color-text-muted);
  font-size: 0.9rem;
  font-weight: 500;
}
.nav a:hover { color: var(--color-text); }

/* --- Hero --- */
.hero {
  position: relative;
  min-height: 92vh;
  display: flex;
  align-items: center;
  padding: 120px 0 80px;
  overflow: hidden;
}
.hero-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 50% at 50% 0%, rgba(90, 140, 50, 0.15) 0%, transparent 55%),
    radial-gradient(ellipse 60% 40% at 80% 60%, rgba(196, 144, 0, 0.08) 0%, transparent 50%),
    var(--color-bg);
}
.hero-inner { position: relative; z-index: 1; }
.hero-title {
  font-family: var(--font-heading);
  font-size: clamp(2.2rem, 5vw, 3.5rem);
  font-weight: 700;
  line-height: 1.2;
  margin: 0 0 20px;
  color: var(--color-text);
}
.hero-subtitle {
  font-size: 1.1rem;
  color: var(--color-text-muted);
  max-width: 520px;
  margin: 0 0 32px;
  line-height: 1.65;
}
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 28px;
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 600;
  border: none;
  border-radius: var(--radius);
  cursor: pointer;
  transition: transform var(--transition), box-shadow var(--transition), background var(--transition);
}
.btn-primary {
  background: linear-gradient(135deg, var(--color-accent) 0%, #4a7529 100%);
  color: #fff;
  box-shadow: 0 4px 20px rgba(90, 140, 50, 0.3);
}
.btn-primary:hover {
  background: linear-gradient(135deg, var(--color-accent-hover) 0%, #558b2f 100%);
  transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(90, 140, 50, 0.35);
}
.btn-large { padding: 18px 36px; font-size: 1.1rem; }
.btn-icon { font-size: 1.2em; }

/* Hero decorations (animals) */
.hero-decoration { position: absolute; inset: 0; pointer-events: none; overflow: hidden; }
.hero-animal {
  position: absolute;
  opacity: 0.5;
  object-fit: contain;
}
.hero-animal-1 { top: 18%; right: 8%; animation: float 6s ease-in-out infinite; }
.hero-animal-2 { top: 45%; right: 18%; animation: float 7s ease-in-out infinite 1s; }
.hero-animal-3 { bottom: 20%; right: 5%; animation: float 5.5s ease-in-out infinite 0.5s; }
@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-12px); }
}

/* --- Sections --- */
.section {
  padding: 80px 0;
}
.section-title {
  font-family: var(--font-heading);
  font-size: clamp(1.75rem, 3.5vw, 2.25rem);
  font-weight: 700;
  text-align: center;
  margin: 0 0 48px;
  color: var(--color-text);
}

/* How it works */
.section-how { background: var(--color-surface-2); }
.steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 28px;
}
.step {
  background: var(--color-surface);
  padding: 24px;
  border-radius: var(--radius-lg);
  border: 1px solid rgba(30, 38, 28, 0.08);
  box-shadow: var(--shadow);
}
.step-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  background: var(--color-accent);
  color: #fff;
  font-weight: 700;
  font-size: 1rem;
  border-radius: 50%;
  margin-bottom: 12px;
}
.step h3 {
  font-size: 1.1rem;
  margin: 0 0 8px;
  color: var(--color-text);
}
.step p {
  margin: 0;
  font-size: 0.9rem;
  color: var(--color-text-muted);
  line-height: 1.5;
}

/* Features grid */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 24px;
}
.feature-card {
  background: var(--color-surface);
  padding: 28px;
  border-radius: var(--radius-lg);
  border: 1px solid rgba(30, 38, 28, 0.08);
  box-shadow: var(--shadow);
  transition: border-color var(--transition), transform var(--transition), box-shadow var(--transition);
}
.feature-card:hover {
  border-color: rgba(90, 140, 50, 0.35);
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(30, 38, 28, 0.12);
}
.feature-icon { font-size: 2.2rem; display: block; margin-bottom: 12px; }
.feature-card h3 {
  font-size: 1.15rem;
  margin: 0 0 8px;
  color: var(--color-text);
}
.feature-card p {
  margin: 0;
  font-size: 0.9rem;
  color: var(--color-text-muted);
  line-height: 1.55;
}

/* Animals showcase */
.section-animals { background: var(--color-surface); }
.animals-showcase {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 40px;
}
.animal-card {
  text-align: center;
  background: var(--color-surface);
  padding: 32px 28px;
  border-radius: var(--radius-lg);
  border: 1px solid rgba(30, 38, 28, 0.08);
  box-shadow: var(--shadow);
  min-width: 180px;
  transition: border-color var(--transition), transform var(--transition), box-shadow var(--transition);
}
.animal-card:hover {
  border-color: rgba(196, 144, 0, 0.3);
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(30, 38, 28, 0.12);
}
.animal-card img {
  margin: 0 auto 16px;
  width: 120px;
  height: 120px;
  object-fit: contain;
}
.animal-card h3 {
  font-size: 1.2rem;
  margin: 0 0 4px;
  color: var(--color-text);
}
.animal-card p {
  margin: 0;
  font-size: 0.9rem;
  color: var(--color-text-muted);
}

/* CTA section */
.section-cta {
  text-align: center;
  padding: 100px 0;
}
.cta-text {
  max-width: 480px;
  margin: 0 auto 28px;
  color: var(--color-text-muted);
  font-size: 1.05rem;
}

/* --- Footer --- */
.footer {
  padding: 32px 0;
  border-top: 1px solid rgba(30, 38, 28, 0.08);
  text-align: center;
  background: var(--color-surface-2);
}
.footer p {
  margin: 0 0 8px;
  font-size: 0.9rem;
  color: var(--color-text-muted);
}
.footer-link {
  font-weight: 600;
  font-size: 0.95rem;
}

/* --- Responsive --- */
@media (max-width: 640px) {
  .nav { display: none; }
  .hero { min-height: auto; padding: 100px 0 60px; }
  .hero-decoration .hero-animal { opacity: 0.25; }
  .section { padding: 56px 0; }
  .steps { grid-template-columns: 1fr; }
  .animals-showcase { flex-direction: column; align-items: center; }
}