/* hands-off.systems – Refined CSS */
/* Version: June 2026 – Modern Minimal Tech Aesthetic */

:root {
  /* Core Brand */
  --color-primary:      #0A2540;     /* Deep navy – premium & trustworthy */
  --color-primary-light:#1E40AF;
  --color-accent:       #00A1E6;     /* Bright cyan accent for tech feel */
  
  /* Neutral Palette */
  --color-text:         #111827;
  --color-text-light:   #4B5563;
  --color-text-muted:   #6B7280;
  --color-bg:           #FFFFFF;
  --color-bg-alt:       #F8FAFC;
  --color-border:       #E5E7EB;
  --color-border-light: #F3F4F6;

  /* Typography */
  --font-heading: 'Inter', system-ui, -apple-system, sans-serif;
  --font-body:    'Inter', system-ui, -apple-system, sans-serif;
  --font-mono:    'JetBrains Mono', monospace;

  /* Spacing */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2.5rem;
  --spacing-xl: 4rem;

  /* Radius & Shadow */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 20px rgba(10, 37, 64, 0.08);
  --shadow-lg: 0 10px 40px rgba(10, 37, 64, 0.12);
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  background-color: var(--color-bg);
  color: var(--color-text);
  line-height: 1.7;
  font-weight: 400;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: var(--spacing-md);
}

h1 { font-size: 3.25rem; letter-spacing: -0.04em; }
h2 { font-size: 2.35rem; letter-spacing: -0.03em; }
h3 { font-size: 1.75rem; }
h4 { font-size: 1.35rem; }

p {
  font-size: 1.1rem;
  color: var(--color-text-light);
  margin-bottom: 1.4rem;
}

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: all 0.2s ease;
}

a:hover {
  color: var(--color-primary-light);
  text-decoration: underline;
}

/* Buttons */
.btn {
  display: inline-block;
  padding: 0.85rem 1.75rem;
  font-weight: 600;
  border-radius: var(--radius-md);
  transition: all 0.25s ease;
  font-size: 1.05rem;
}

.btn-primary {
  background: var(--color-primary);
  color: white;
  border: none;
}

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

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

.btn-outline:hover {
  background: var(--color-primary);
  color: white;
}

/* Layout */
.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

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

.hero {
  background: linear-gradient(135deg, #F0F7FF 0%, #E0F0FF 100%);
  padding: 7rem 0 5rem;
  text-align: center;
}

.card {
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
  box-shadow: var(--shadow-sm);
  transition: all 0.3s ease;
}

.card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
  border-color: var(--color-border-light);
}

/* Content Styling */
main {
  min-height: 70vh;
}

/* Footer */
footer {
  background: var(--color-primary);
  color: white;
  padding: 4.5rem 0 2.5rem;
  margin-top: var(--spacing-xl);
}

footer a {
  color: rgba(255,255,255,0.85);
}

footer a:hover {
  color: white;
}

/* Responsive */
@media (max-width: 768px) {
  h1 { font-size: 2.6rem; }
  h2 { font-size: 2rem; }
  .hero { padding: 5rem 0 3.5rem; }
  .section { padding: var(--spacing-lg) 0; }
}