:root {
  --bg-deep: #0c1a0f;
  --bg-card: #142018;
  --bg-section: #0f2416;
  --fg: #e8e0d4;
  --fg-muted: #a09888;
  --accent: #d4a338;
  --accent-glow: #e8b84d;
  --honey: #c8912a;
  --petal: #c75d4a;
  --wing: #4a9b8e;
  --dust: #8b7355;
  --radius: 16px;
}

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

html { scroll-behavior: smooth; }

body {
  background: var(--bg-deep);
  color: var(--fg);
  font-family: 'DM Sans', sans-serif;
  line-height: 1.6;
  overflow-x: hidden;
}

/* ---------- HERO ---------- */
.hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 80px 24px 60px;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -200px;
  right: -200px;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(212, 163, 56, 0.08) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}

.hero::after {
  content: '';
  position: absolute;
  bottom: -100px;
  left: -150px;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(74, 155, 142, 0.06) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}

.hero-inner {
  max-width: 900px;
  margin: 0 auto;
  position: relative;
  z-index: 1;
}

.hero-tag {
  display: inline-block;
  font-family: 'Space Mono', monospace;
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--accent);
  border: 1px solid rgba(212, 163, 56, 0.3);
  padding: 6px 16px;
  border-radius: 100px;
  margin-bottom: 32px;
}

.hero h1 {
  font-family: 'Syne', sans-serif;
  font-size: clamp(2.8rem, 7vw, 5.5rem);
  font-weight: 800;
  line-height: 1.05;
  letter-spacing: -0.03em;
  margin-bottom: 28px;
}

.hero h1 .accent {
  color: var(--accent);
}

.hero-lede {
  font-size: clamp(1.1rem, 2.5vw, 1.35rem);
  color: var(--fg-muted);
  max-width: 580px;
  line-height: 1.7;
}

/* ---------- SPECIES GRID ---------- */
.species {
  padding: 100px 24px;
  position: relative;
}

.species-inner {
  max-width: 1100px;
  margin: 0 auto;
}

.species-header {
  margin-bottom: 60px;
}

.species-header h2 {
  font-family: 'Syne', sans-serif;
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
}

.species-header p {
  color: var(--fg-muted);
  max-width: 500px;
  font-size: 1.05rem;
}

.species-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.species-card {
  background: var(--bg-card);
  border: 1px solid rgba(255,255,255,0.05);
  border-radius: var(--radius);
  padding: 36px 28px;
  transition: border-color 0.3s ease, transform 0.3s ease;
}

.species-card:hover {
  border-color: rgba(212, 163, 56, 0.2);
  transform: translateY(-4px);
}

.species-icon {
  font-size: 2.2rem;
  margin-bottom: 20px;
  display: block;
}

.species-card h3 {
  font-family: 'Syne', sans-serif;
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 10px;
}

.species-card p {
  color: var(--fg-muted);
  font-size: 0.92rem;
  line-height: 1.6;
}

.card-hummingbird { border-top: 3px solid var(--petal); }
.card-butterfly { border-top: 3px solid var(--accent); }
.card-bee { border-top: 3px solid var(--honey); }
.card-bat { border-top: 3px solid var(--wing); }

/* ---------- HOW IT WORKS ---------- */
.how-it-works {
  padding: 100px 24px;
  background: var(--bg-section);
}

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

.how-inner h2 {
  font-family: 'Syne', sans-serif;
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 60px;
}

.steps {
  display: flex;
  flex-direction: column;
  gap: 48px;
}

.step {
  display: flex;
  gap: 28px;
  align-items: flex-start;
}

.step-num {
  font-family: 'Syne', sans-serif;
  font-size: 3rem;
  font-weight: 800;
  color: rgba(212, 163, 56, 0.2);
  line-height: 1;
  flex-shrink: 0;
  min-width: 60px;
}

.step-content h3 {
  font-family: 'Syne', sans-serif;
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.step-content p {
  color: var(--fg-muted);
  font-size: 0.95rem;
  line-height: 1.65;
  max-width: 500px;
}

/* ---------- DETAILS ---------- */
.details {
  padding: 100px 24px;
}

.details-inner {
  max-width: 900px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: start;
}

.details-left h2 {
  font-family: 'Syne', sans-serif;
  font-size: clamp(1.6rem, 3.5vw, 2.4rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 20px;
}

.details-left p {
  color: var(--fg-muted);
  font-size: 1rem;
  line-height: 1.7;
}

.detail-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.detail-list li {
  display: flex;
  gap: 14px;
  align-items: flex-start;
}

.detail-marker {
  width: 8px;
  height: 8px;
  background: var(--accent);
  border-radius: 50%;
  flex-shrink: 0;
  margin-top: 8px;
}

.detail-text strong {
  display: block;
  font-size: 1rem;
  margin-bottom: 4px;
}

.detail-text span {
  color: var(--fg-muted);
  font-size: 0.9rem;
  line-height: 1.55;
}

/* ---------- CLOSING ---------- */
.closing {
  padding: 120px 24px;
  text-align: center;
  position: relative;
}

.closing::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 1px;
  height: 60px;
  background: linear-gradient(to bottom, transparent, var(--accent));
}

.closing-inner {
  max-width: 700px;
  margin: 0 auto;
}

.closing h2 {
  font-family: 'Syne', sans-serif;
  font-size: clamp(2rem, 5vw, 3.2rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  margin-bottom: 20px;
  line-height: 1.15;
}

.closing p {
  color: var(--fg-muted);
  font-size: 1.1rem;
  line-height: 1.7;
}

/* ---------- FOOTER ---------- */
footer {
  padding: 40px 24px;
  border-top: 1px solid rgba(255,255,255,0.05);
  text-align: center;
}

.footer-inner {
  max-width: 900px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.footer-brand {
  font-family: 'Syne', sans-serif;
  font-weight: 700;
  font-size: 1rem;
  color: var(--fg);
}

.footer-note {
  color: var(--fg-muted);
  font-size: 0.8rem;
}

/* ---------- RESPONSIVE ---------- */
@media (max-width: 768px) {
  .species-grid {
    grid-template-columns: 1fr 1fr;
    gap: 14px;
  }

  .species-card {
    padding: 24px 20px;
  }

  .details-inner {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .footer-inner {
    flex-direction: column;
    gap: 12px;
  }

  .step {
    gap: 18px;
  }

  .step-num {
    font-size: 2.2rem;
    min-width: 40px;
  }
}

@media (max-width: 480px) {
  .species-grid {
    grid-template-columns: 1fr;
  }

  .hero {
    padding: 60px 20px 40px;
  }
}