:root {
  --color-bg: #FFFFFF;
  --color-surface: #F8FAFC;
  --color-border: #E2E8F0;
  --color-cobalt: #2563EB;
  --color-cyan: #06B6D4;
  --text-primary: #0F172A;
  --text-secondary: #475569;
  --text-muted: #94A3B8;
}

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

body {
  font-family: 'Inter', sans-serif;
  background-color: var(--color-bg);
  color: var(--text-primary);
  line-height: 1.5;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* Navbar Layout */
.navbar {
  position: sticky;
  top: 0;
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--color-border);
  z-index: 1000;
  padding: 1.25rem 0;
}

.navbar .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 800;
  font-size: 1.35rem;
  text-decoration: none;
  color: var(--text-primary);
}

.nav-links {
  display: flex;
  gap: 2rem;
  list-style: none;
}

.nav-links a {
  text-decoration: none;
  color: var(--text-secondary);
  font-weight: 500;
}

.nav-links a:hover, .nav-links a.active {
  color: var(--color-cobalt);
}

.btn-primary {
  background: linear-gradient(135deg, var(--color-cobalt) 0%, var(--color-cyan) 100%);
  color: white;
  font-weight: 600;
  padding: 0.65rem 1.35rem;
  border-radius: 6px;
  text-decoration: none;
}

/* Hero Section */
.hero-section {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 4rem;
  padding: 6rem 1.5rem;
  align-items: center;
}

.hero-content h1 {
  font-size: 3.5rem;
  font-weight: 800;
  line-height: 1.15;
  margin-bottom: 1.5rem;
}

.gradient-text {
  background: linear-gradient(135deg, var(--color-cobalt) 0%, var(--color-cyan) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-content p {
  color: var(--text-secondary);
  font-size: 1.125rem;
  margin-bottom: 2rem;
}

/* 3D Wireframe Canvas Wrapper */
.wireframe-container {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 12px;
  height: 380px;
  position: relative;
  cursor: grab;
  overflow: hidden;
}

.wireframe-container:active {
  cursor: grabbing;
}

canvas {
  width: 100%;
  height: 100%;
}

.canvas-hint {
  position: absolute;
  bottom: 1rem;
  left: 50%;
  transform: translateX(-50%);
  font-size: 0.75rem;
  color: var(--text-muted);
  background: rgba(255,255,255,0.9);
  padding: 0.25rem 0.5rem;
  border-radius: 4px;
  pointer-events: none;
}

/* Metrics Ribbon */
.metrics-ribbon {
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
  background-color: var(--color-surface);
  padding: 2.5rem 0;
}

.metrics-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  text-align: center;
}

.metric-item {
  border-right: 1px solid var(--color-border);
}

.metric-item:last-child {
  border-right: none;
}

.metric-value {
  font-size: 2.25rem;
  font-weight: 800;
}

.metric-label {
  font-size: 0.8rem;
  color: var(--text-secondary);
  font-weight: 600;
  text-transform: uppercase;
}

/* Spacing Layout Fixes */
.engineered-spacing {
  margin-top: 5rem; /* Forces clean clearance gap below states ribbon */
  margin-bottom: 5rem;
}

.scope-widget-section {
  text-align: center;
}

.scope-toggle {
  display: flex;
  justify-content: center;
  gap: 1rem;
  margin-bottom: 2.5rem;
}

.scope-btn {
  padding: 0.75rem 1.5rem;
  border: 1px solid var(--color-border);
  background: white;
  border-radius: 30px;
  font-weight: 600;
  cursor: pointer;
  color: var(--text-secondary);
}

.scope-btn.active {
  border-color: var(--color-cobalt);
  color: var(--color-cobalt);
  background: var(--color-surface);
}

.scope-content {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 12px;
  padding: 2.5rem;
  max-width: 800px;
  margin: 0 auto;
}

/* Tinted Soft Gradient Summary Boxes (Replaces the raw standalone text lines) */
.teasers-section {
  padding-bottom: 6rem;
}

.teasers-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
}

.teaser-card {
  border: 1px solid var(--color-border);
  border-radius: 14px;
  padding: 2.5rem;
  transition: transform 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease;
}

.tint-blue-grad {
  background: linear-gradient(135deg, rgba(37, 99, 235, 0.03) 0%, rgba(37, 99, 235, 0.07) 100%);
}

.tint-cyan-grad {
  background: linear-gradient(135deg, rgba(6, 182, 212, 0.03) 0%, rgba(6, 182, 212, 0.07) 100%);
}

.teaser-card:hover {
  transform: translateY(-3px);
  border-color: var(--color-cobalt);
  box-shadow: 0 10px 25px rgba(15, 23, 42, 0.03);
}

.teaser-card h3 {
  font-size: 1.35rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
}

.teaser-card p {
  color: var(--text-secondary);
  font-size: 0.95rem;
}

.footer {
  border-top: 1px solid var(--color-border);
  background: var(--color-surface);
  padding: 3rem 0;
  text-align: center;
  font-size: 0.875rem;
  color: var(--text-secondary);
}

.footer-scale {
  font-weight: 700;
  color: var(--color-cobalt);
  margin-bottom: 0.5rem;
}

@media (max-width: 768px) {
  .hero-section, .teasers-grid, .metrics-grid { grid-template-columns: 1fr; gap: 2rem; }
  .metric-item { border-right: none; border-bottom: 1px solid var(--color-border); padding-bottom: 1rem; }
  .metric-item:last-child { border-bottom: none; }
}