:root {
  --color-navy: #0B1F3A;
  --color-navy-soft: #123B66;
  --color-blue: #2563EB;
  --color-blue-dark: #1D4ED8;
  --color-green: #22C55E;
  --color-green-dark: #15803D;
  --color-sky: #EFF6FF;
  --color-mint: #ECFDF5;
  --color-white: #FFFFFF;
  --color-text: #0F172A;
  --color-muted: #64748B;
  --color-border: #DDE7F0;
  --color-surface: #F8FAFC;
  --color-surface-strong: #F1F5F9;

  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2rem;
  --spacing-xl: 3rem;
  --spacing-2xl: 4rem;

  --font-sans: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --font-mono: 'Courier New', monospace;

  --max-width: 1200px;
  --border-radius: 8px;
  --shadow-sm: 0 1px 2px rgba(15, 23, 42, 0.05);
  --shadow-md: 0 4px 6px rgba(15, 23, 42, 0.07);
  --shadow-lg: 0 12px 30px rgba(15, 23, 42, 0.08);
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  color: var(--color-text);
  background-color: var(--color-white);
  line-height: 1.6;
}

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
}

/* Header & Navigation */
.header {
  background-color: var(--color-white);
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: var(--shadow-sm);
}

.header-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--spacing-md) 0;
}

.logo {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-navy);
  text-decoration: none;
  letter-spacing: -0.5px;
}

.nav {
  display: flex;
  gap: var(--spacing-lg);
}

.nav a {
  color: var(--color-text);
  text-decoration: none;
  font-size: 0.9rem;
  transition: color 0.2s;
  font-weight: 500;
}

.nav a:hover {
  color: var(--color-blue);
}

.nav a:focus {
  outline: 2px solid var(--color-blue);
  outline-offset: 2px;
}

/* Buttons */
.btn {
  display: inline-block;
  padding: 0.75rem 1.5rem;
  border-radius: var(--border-radius);
  text-decoration: none;
  font-size: 0.95rem;
  font-weight: 600;
  transition: all 0.2s;
  border: none;
  cursor: pointer;
}

.btn-primary {
  background-color: var(--color-green);
  color: var(--color-navy);
}

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

.btn-primary:focus {
  outline: 2px solid var(--color-blue);
  outline-offset: 2px;
}

.btn-secondary {
  background-color: transparent;
  color: var(--color-white);
  border: 1px solid rgba(255, 255, 255, 0.45);
}

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

.btn-secondary:focus {
  outline: 2px solid rgba(255, 255, 255, 0.6);
  outline-offset: 2px;
}

/* Hero Section */
.hero {
  background: linear-gradient(135deg, #0B1F3A 0%, #123B66 100%);
  color: var(--color-white);
  padding: var(--spacing-2xl) 0;
  text-align: center;
}

.hero h1 {
  font-size: 2.5rem;
  line-height: 1.2;
  margin-bottom: var(--spacing-lg);
  max-width: 900px;
  margin-left: auto;
  margin-right: auto;
  font-weight: 700;
}

.hero-subheadline {
  font-size: 1.1rem;
  color: #A7C3E0;
  max-width: 750px;
  margin: 0 auto var(--spacing-2xl);
  line-height: 1.7;
}

.hero-ctas {
  display: flex;
  gap: var(--spacing-md);
  justify-content: center;
  margin-bottom: var(--spacing-2xl);
  flex-wrap: wrap;
}

.hero-support {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--spacing-md);
  margin-top: var(--spacing-2xl);
  padding-top: var(--spacing-2xl);
  border-top: 1px solid rgba(255, 255, 255, 0.15);
}

.support-item {
  font-size: 0.9rem;
  color: #A7C3E0;
  padding: var(--spacing-sm) var(--spacing-md);
  background-color: rgba(255, 255, 255, 0.08);
  border-radius: 6px;
  border: 1px solid rgba(255, 255, 255, 0.12);
}

/* Problem Section */
.problem-section {
  background-color: var(--color-white);
  padding: var(--spacing-2xl) 0;
  border-bottom: 1px solid var(--color-border);
}

.problem-section h2 {
  font-size: 2rem;
  margin-bottom: var(--spacing-md);
  font-weight: 700;
  color: var(--color-navy);
}

.section-intro {
  font-size: 1.05rem;
  color: var(--color-muted);
  margin-bottom: var(--spacing-2xl);
  max-width: 750px;
}

.problem-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-lg);
}

.problem-card {
  background-color: var(--color-white);
  padding: var(--spacing-lg);
  border-radius: var(--border-radius);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-lg);
  transition: all 0.2s;
}

.problem-card:hover {
  border-color: var(--color-blue);
  box-shadow: 0 12px 40px rgba(37, 99, 235, 0.1);
}

.problem-card h3 {
  font-size: 1.1rem;
  margin-bottom: var(--spacing-sm);
  color: var(--color-navy);
  font-weight: 600;
}

.problem-card p {
  color: var(--color-muted);
  font-size: 0.95rem;
  line-height: 1.6;
}

/* Services Section */
.services-section {
  background-color: var(--color-surface);
  padding: var(--spacing-2xl) 0;
  border-bottom: 1px solid var(--color-border);
}

.services-section h2 {
  font-size: 2rem;
  margin-bottom: var(--spacing-2xl);
  font-weight: 700;
  color: var(--color-navy);
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: var(--spacing-lg);
}

.service-card {
  background-color: var(--color-white);
  padding: var(--spacing-lg);
  border-radius: var(--border-radius);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
  transition: all 0.2s;
}

.service-card:hover {
  border-color: var(--color-blue);
  box-shadow: 0 8px 20px rgba(37, 99, 235, 0.08);
}

.service-card h3 {
  font-size: 1.1rem;
  margin-bottom: var(--spacing-sm);
  color: var(--color-navy);
  font-weight: 600;
}

.service-card p {
  color: var(--color-muted);
  font-size: 0.95rem;
  line-height: 1.6;
}

/* Command Centers Section */
.command-centers-section {
  background: linear-gradient(135deg, #102A4C 0%, #1E4E7A 100%);
  padding: var(--spacing-2xl) 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.command-centers-section h2 {
  font-size: 2rem;
  margin-bottom: var(--spacing-2xl);
  font-weight: 700;
  color: var(--color-white);
}

.command-centers-content {
  max-width: 700px;
  background-color: rgba(255, 255, 255, 0.96);
  padding: var(--spacing-lg);
  border-radius: var(--border-radius);
  border: 1px solid rgba(255, 255, 255, 0.18);
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.22);
}

.command-centers-content p {
  font-size: 1rem;
  color: var(--color-text);
  line-height: 1.7;
  margin-bottom: var(--spacing-lg);
}

.command-centers-boundary {
  background-color: #EFF6FF;
  padding: var(--spacing-md);
  border-left: 4px solid var(--color-blue);
  border-radius: 4px;
  margin-bottom: var(--spacing-lg);
  font-size: 0.95rem;
  color: var(--color-navy);
}

/* How It Works Section */
.how-works-section {
  background-color: var(--color-white);
  padding: var(--spacing-2xl) 0;
  border-bottom: 1px solid var(--color-border);
}

.how-works-section h2 {
  font-size: 2rem;
  margin-bottom: var(--spacing-2xl);
  font-weight: 700;
  color: var(--color-navy);
}

.process-steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--spacing-lg);
}

.process-step {
  background-color: var(--color-surface);
  padding: var(--spacing-lg);
  border-radius: var(--border-radius);
  border: 1px solid var(--color-border);
  position: relative;
  box-shadow: var(--shadow-sm);
}

.step-number {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background-color: var(--color-green);
  color: var(--color-navy);
  border-radius: 50%;
  font-weight: 700;
  font-size: 1.1rem;
  margin-bottom: var(--spacing-md);
}

.process-step h3 {
  font-size: 1.05rem;
  margin-bottom: var(--spacing-sm);
  color: var(--color-navy);
  font-weight: 600;
}

.process-step p {
  color: var(--color-muted);
  font-size: 0.95rem;
  line-height: 1.6;
}

/* Alignment Section */
.alignment-section {
  background-color: var(--color-white);
  padding: var(--spacing-2xl) 0;
  border-bottom: 1px solid var(--color-border);
}

.alignment-section h2 {
  font-size: 2rem;
  margin-bottom: var(--spacing-lg);
  font-weight: 700;
  color: var(--color-navy);
}

.principles-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-lg);
  margin-top: var(--spacing-2xl);
}

.principle-card {
  background-color: var(--color-surface);
  padding: var(--spacing-lg);
  border-radius: var(--border-radius);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
}

.principle-card h3 {
  font-size: 1.05rem;
  margin-bottom: var(--spacing-sm);
  color: var(--color-navy);
  font-weight: 600;
}

.principle-card p {
  color: var(--color-muted);
  font-size: 0.95rem;
  line-height: 1.6;
}

/* CTA Section */
.cta-section {
  background: linear-gradient(135deg, #0B1F3A 0%, #123B66 100%);
  color: var(--color-white);
  padding: var(--spacing-2xl) 0;
  text-align: center;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.cta-section h2 {
  font-size: 2rem;
  margin-bottom: var(--spacing-md);
  font-weight: 700;
}

.cta-section p {
  font-size: 1.05rem;
  color: #A7C3E0;
  margin-bottom: var(--spacing-2xl);
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
  line-height: 1.7;
}

/* Footer */
.footer {
  background-color: var(--color-navy);
  color: var(--color-white);
  padding: var(--spacing-2xl) 0 var(--spacing-lg);
}

.footer-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-2xl);
  margin-bottom: var(--spacing-2xl);
  padding-bottom: var(--spacing-2xl);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-brand h3 {
  font-size: 1.25rem;
  margin-bottom: var(--spacing-sm);
  font-weight: 700;
}

.footer-brand p {
  color: #A7C3E0;
  font-size: 0.95rem;
  line-height: 1.6;
}

.footer-nav {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.footer-nav a {
  color: #A7C3E0;
  text-decoration: none;
  font-size: 0.95rem;
  transition: color 0.2s;
}

.footer-nav a:hover {
  color: var(--color-green);
}

.footer-bottom {
  text-align: center;
  color: #A7C3E0;
  font-size: 0.85rem;
}

/* Responsive Design */
@media (max-width: 768px) {
  .header-inner {
    flex-direction: column;
    gap: var(--spacing-md);
    padding: var(--spacing-md) 0;
  }

  .nav {
    flex-wrap: wrap;
    gap: var(--spacing-md);
    justify-content: center;
    width: 100%;
  }

  .nav a {
    font-size: 0.85rem;
  }

  .hero h1 {
    font-size: 1.75rem;
  }

  .hero-subheadline {
    font-size: 1rem;
  }

  .hero-ctas {
    flex-direction: column;
    align-items: center;
  }

  .hero-ctas .btn {
    width: 100%;
    max-width: 300px;
    text-align: center;
  }

  .hero-support {
    grid-template-columns: 1fr 1fr;
  }

  .problem-section h2,
  .services-section h2,
  .how-works-section h2,
  .alignment-section h2,
  .cta-section h2 {
    font-size: 1.5rem;
  }

  .footer-content {
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
  }

  .container {
    padding: 0 var(--spacing-md);
  }
}

@media (max-width: 480px) {
  .logo {
    font-size: 1.1rem;
  }

  .nav {
    gap: var(--spacing-sm);
  }

  .nav a {
    font-size: 0.8rem;
  }

  .hero h1 {
    font-size: 1.5rem;
  }

  .hero {
    padding: var(--spacing-xl) 0;
  }

  .problem-section,
  .services-section,
  .how-works-section,
  .alignment-section,
  .cta-section {
    padding: var(--spacing-xl) 0;
  }

  .problem-grid,
  .services-grid,
  .process-steps,
  .principles-grid {
    grid-template-columns: 1fr;
  }

  .hero-support {
    grid-template-columns: 1fr;
  }

  .footer-content {
    grid-template-columns: 1fr;
  }
}