:root {
  --bg-primary: #0C1F3F;
  --bg-card: #142A50;
  --bg-card-hover: #1a3562;
  --color-primary: #185FA5;
  --color-accent: #1D9E75;
  --color-hover: #378ADD;
  --color-white: #FFFFFF;
  --color-gray: #A8B8D0;
  --color-light: #E2E8F0;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --transition: all 0.3s ease;
  --shadow: 0 4px 24px rgba(0,0,0,0.2);
  --shadow-lg: 0 12px 48px rgba(0,0,0,0.3);
}

[data-theme="light"] {
  --bg-primary: #F5F7FA;
  --bg-card: #FFFFFF;
  --bg-card-hover: #F0F4F8;
  --color-primary: #185FA5;
  --color-accent: #1D9E75;
  --color-hover: #378ADD;
  --color-white: #1A202C;
  --color-gray: #4A5568;
  --color-light: #2D3748;
  --shadow: 0 4px 24px rgba(0,0,0,0.08);
  --shadow-lg: 0 12px 48px rgba(0,0,0,0.12);
}

.theme-toggle {
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 50%;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 1.1rem;
  transition: var(--transition);
}

[data-theme="light"] .theme-toggle {
  background: rgba(0,0,0,0.05);
  border-color: rgba(0,0,0,0.1);
}

.theme-toggle:hover { transform: scale(1.1); }

#ai-bg {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  z-index: -1;
  pointer-events: none;
  overflow: hidden;
}

#ai-bg canvas {
  display: block;
  width: 100%;
  height: 100%;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', sans-serif;
  background: var(--bg-primary);
  color: var(--color-light);
  line-height: 1.6;
  overflow-x: hidden;
}

a { text-decoration: none; color: inherit; }
ul { list-style: none; }
img { max-width: 100%; display: block; }

.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }

.section { padding: 100px 0; }

.section-label {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 3px;
  color: var(--color-accent);
  margin-bottom: 12px;
}

.section-title {
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 700;
  color: var(--color-white);
  margin-bottom: 16px;
}

.section-subtitle {
  font-size: 1.1rem;
  color: var(--color-gray);
  max-width: 600px;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  border: none;
  transition: var(--transition);
}

.btn-primary { background: var(--color-primary); color: var(--color-white); }
.btn-primary:hover { background: var(--color-hover); transform: translateY(-2px); box-shadow: var(--shadow); }

.btn-accent { background: var(--color-accent); color: var(--color-white); }
.btn-accent:hover { background: #24b888; transform: translateY(-2px); }

.btn-outline { background: transparent; border: 2px solid var(--color-primary); color: var(--color-white); }
.btn-outline:hover { background: var(--color-primary); }

.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible { opacity: 1; transform: translateY(0); }

@media (max-width: 768px) {
  .section { padding: 60px 0; }
  .container { padding: 0 16px; }
}

/* Pipeline Grid - Professional Steps */
.pipeline-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 48px;
}

.pipeline-card {
  background: var(--bg-card);
  border: 1px solid rgba(29,158,117,0.1);
  border-radius: 16px;
  padding: 32px 24px;
  text-align: center;
  transition: all 0.3s ease;
  position: relative;
}

.pipeline-card:hover {
  transform: translateY(-4px);
  border-color: rgba(29,158,117,0.4);
  box-shadow: 0 12px 40px rgba(29,158,117,0.12);
}

.pipeline-num {
  font-size: 2.2rem;
  font-weight: 800;
  background: linear-gradient(135deg, var(--color-accent), var(--color-primary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 12px;
  line-height: 1;
}

.pipeline-card h4 {
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-white);
  margin-bottom: 8px;
}

.pipeline-card p {
  font-size: 0.85rem;
  color: var(--color-gray);
  line-height: 1.5;
}

@media (max-width: 768px) {
  .pipeline-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }
}