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

:root {
  --green-900: #1B5E20;
  --green-800: #2E7D32;
  --green-700: #388E3C;
  --green-600: #43A047;
  --green-100: #C8E6C9;
  --gold: #FFD700;
  --gold-light: #FFF8E1;
  --gold-dark: #F9A825;
  --dark: #1a1a2e;
  --dark-2: #16213e;
  --white: #ffffff;
  --gray-100: #f5f5f5;
  --gray-300: #e0e0e0;
  --gray-600: #757575;
  --gray-800: #424242;
  --radius: 12px;
  --shadow: 0 4px 24px rgba(0,0,0,0.1);
  --shadow-hover: 0 8px 40px rgba(0,0,0,0.15);
}

html { scroll-behavior: smooth; }

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  color: var(--dark);
  background: var(--white);
  line-height: 1.6;
}

.container { max-width: 1100px; margin: 0 auto; padding: 0 24px; }

/* ─── Hero ─── */
.hero {
  background: linear-gradient(135deg, var(--green-900) 0%, var(--dark) 50%, var(--dark-2) 100%);
  color: var(--white);
  padding: 80px 0 100px;
  position: relative;
  overflow: hidden;
}

.hero::after {
  content: '';
  position: absolute;
  bottom: -2px; left: 0; right: 0;
  height: 80px;
  background: var(--white);
  clip-path: ellipse(70% 100% at 50% 100%);
}

.hero-badge {
  display: inline-block;
  background: rgba(255,215,0,0.15);
  border: 1px solid var(--gold);
  color: var(--gold);
  padding: 6px 16px;
  border-radius: 20px;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 24px;
  letter-spacing: 0.5px;
}

.hero h1 {
  font-size: 3rem;
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: 16px;
}

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

.hero p {
  font-size: 1.2rem;
  color: rgba(255,255,255,0.85);
  max-width: 600px;
  margin-bottom: 32px;
}

.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }

.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 14px 32px; border-radius: var(--radius);
  font-size: 1rem; font-weight: 700;
  text-decoration: none; cursor: pointer;
  transition: all 0.2s;
  border: none;
}

.btn-primary {
  background: var(--gold);
  color: var(--dark);
}

.btn-primary:hover {
  background: var(--gold-dark);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(255,215,0,0.3);
}

.btn-outline {
  background: transparent;
  color: var(--white);
  border: 2px solid rgba(255,255,255,0.3);
}

.btn-outline:hover {
  border-color: var(--white);
  background: rgba(255,255,255,0.1);
}

/* ─── Sections ─── */
section { padding: 80px 0; }

.section-title {
  font-size: 2rem;
  font-weight: 700;
  text-align: center;
  margin-bottom: 12px;
}

.section-subtitle {
  font-size: 1.1rem;
  color: var(--gray-600);
  text-align: center;
  max-width: 600px;
  margin: 0 auto 48px;
}

/* ─── Features ─── */
.features { background: var(--gray-100); }

.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 24px;
}

.feature-card {
  background: var(--white);
  border-radius: var(--radius);
  padding: 32px;
  box-shadow: var(--shadow);
  transition: all 0.2s;
}

.feature-card:hover { box-shadow: var(--shadow-hover); transform: translateY(-4px); }

.feature-icon {
  width: 48px; height: 48px;
  background: var(--green-100);
  border-radius: 12px;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.5rem;
  margin-bottom: 16px;
}

.feature-card h3 { font-size: 1.1rem; margin-bottom: 8px; }

.feature-card p { font-size: 0.95rem; color: var(--gray-600); }

/* ─── Skills ─── */
.skill-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
}

.skill-card {
  border: 1px solid var(--gray-300);
  border-radius: var(--radius);
  padding: 24px;
  transition: all 0.2s;
  display: flex;
  flex-direction: column;
}

.skill-card:hover {
  border-color: var(--green-700);
  box-shadow: var(--shadow);
}

.skill-card h3 { font-size: 1rem; margin-bottom: 4px; }

.skill-card p {
  font-size: 0.9rem;
  color: var(--gray-600);
  flex: 1;
  margin-bottom: 16px;
}

.skill-url {
  font-size: 0.75rem;
  color: var(--gray-600);
  background: var(--gray-100);
  padding: 8px 12px;
  border-radius: 8px;
  word-break: break-all;
  margin-bottom: 12px;
  font-family: 'SF Mono', 'Fira Code', monospace;
}

.copy-btn {
  align-self: flex-start;
  padding: 8px 16px;
  border-radius: 8px;
  border: 1px solid var(--green-700);
  background: transparent;
  color: var(--green-700);
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
}

.copy-btn:hover { background: var(--green-700); color: var(--white); }

/* ─── How It Works ─── */
.steps { background: var(--gold-light); }

.step-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 24px;
}

.step {
  text-align: center;
  padding: 32px 16px;
}

.step-num {
  width: 48px; height: 48px;
  background: var(--green-700);
  color: var(--white);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.25rem; font-weight: 700;
  margin: 0 auto 16px;
}

.step h3 { font-size: 1rem; margin-bottom: 8px; }

.step p { font-size: 0.9rem; color: var(--gray-600); }

/* ─── MCP ─── */
.mcp-box {
  background: linear-gradient(135deg, var(--dark), var(--dark-2));
  color: var(--white);
  border-radius: var(--radius);
  padding: 40px;
}

.mcp-box h3 { font-size: 1.25rem; margin-bottom: 12px; }

.mcp-box p { color: rgba(255,255,255,0.7); margin-bottom: 20px; }

.mcp-url {
  background: rgba(255,255,255,0.1);
  border-radius: 8px;
  padding: 12px 16px;
  font-family: 'SF Mono', 'Fira Code', monospace;
  font-size: 0.85rem;
  word-break: break-all;
  margin-bottom: 16px;
}

.mcp-tools {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 8px;
}

.mcp-tool {
  background: rgba(255,255,255,0.08);
  padding: 8px 12px;
  border-radius: 6px;
  font-size: 0.8rem;
  color: var(--green-100);
}

/* ─── Download ─── */
.download-box {
  text-align: center;
  background: var(--white);
  border: 2px dashed var(--gray-300);
  border-radius: var(--radius);
  padding: 48px;
}

.download-box .btn { font-size: 1.1rem; padding: 16px 40px; }

.download-box .small {
  font-size: 0.85rem;
  color: var(--gray-600);
  margin-top: 12px;
}

/* ─── Footer ─── */
footer {
  background: var(--dark);
  color: rgba(255,255,255,0.6);
  text-align: center;
  padding: 32px 0;
  font-size: 0.85rem;
}

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

/* ─── Responsive ─── */
@media (max-width: 768px) {
  .hero h1 { font-size: 2rem; }
  .hero { padding: 60px 0 80px; }
  .hero-actions { flex-direction: column; }
  .btn { justify-content: center; }
  section { padding: 48px 0; }
}