:root {
  --color-bg: #fafafa;
  --color-surface: #ffffff;
  --color-text-primary: #1a202c;
  --color-text-secondary: #4a5568;
  --color-primary: #0f2b46;
  --color-primary-dark: #0a1f33;
  --color-accent: #2c7a7b;
  --color-accent-light: #e6f7f7;
  --color-border: #e2e8f0;
  --color-error: #c53030;
  
  --font-heading: Georgia, 'Times New Roman', serif;
  --font-body: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
  
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 2rem;
  --space-xl: 3rem;
  --space-xxl: 4rem;
  
  --container-max: 1100px;
  --border-radius: 8px;
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.08);
  
  --transition: 150ms ease-in-out;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  font-size: 1.05rem;
  line-height: 1.65;
  color: var(--color-text-primary);
  background-color: var(--color-bg);
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 600;
  line-height: 1.3;
  color: var(--color-primary);
  margin-bottom: var(--space-sm);
}

h1 { font-size: clamp(2rem, 5vw, 3rem); }
h2 { font-size: clamp(1.5rem, 4vw, 2.25rem); }
h3 { font-size: 1.35rem; }

p { margin-bottom: var(--space-sm); color: var(--color-text-secondary); }

a {
  color: var(--color-accent);
  text-decoration: none;
  transition: color var(--transition);
}

a:hover { color: var(--color-primary); }

img { max-width: 100%; height: auto; display: block; }

.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--space-md);
}

.section { padding: var(--space-xl) 0; }
.section--tight { padding: var(--space-lg) 0; }

.grid {
  display: grid;
  gap: var(--space-lg);
}

.grid--2 { grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); }
.grid--3 { grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); }

.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius);
  padding: var(--space-lg);
  box-shadow: var(--shadow-sm);
  transition: box-shadow var(--transition), transform var(--transition);
}

.card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.85rem 1.75rem;
  background: var(--color-accent);
  color: white;
  font-weight: 500;
  border: none;
  border-radius: 6px;
  cursor: pointer;
  transition: background var(--transition), transform var(--transition);
  text-align: center;
  font-size: 1rem;
}

.btn:hover {
  background: #256a6b;
  transform: translateY(-1px);
}

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

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

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

.btn--outline:hover {
  background: var(--color-accent-light);
}

.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(250, 250, 250, 0.95);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--color-border);
  padding: var(--space-sm) 0;
}

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

.logo {
  font-family: var(--font-heading);
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--color-primary);
}

.logo span { color: var(--color-accent); }

.nav-links {
  display: flex;
  gap: var(--space-lg);
  list-style: none;
}

.nav-links a {
  color: var(--color-text-primary);
  font-weight: 500;
  position: relative;
  padding: 0.25rem 0;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-accent);
  transition: width var(--transition);
}

.nav-links a:hover::after { width: 100%; }

.nav-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 1.5rem;
  color: var(--color-primary);
  cursor: pointer;
}

.hero {
  padding: var(--space-xxl) 0 var(--space-xl);
  text-align: center;
  background: linear-gradient(135deg, var(--color-primary) 0%, #1a3a5c 100%);
  color: white;
}

.hero h1 {
  color: white;
  margin-bottom: var(--space-md);
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
}

.hero p {
  color: rgba(255,255,255,0.9);
  font-size: 1.15rem;
  max-width: 600px;
  margin: 0 auto var(--space-lg);
}

.hero .btn {
  background: white;
  color: var(--color-primary);
  font-weight: 600;
}

.hero .btn:hover {
  background: var(--color-accent-light);
  transform: translateY(-2px);
}

.problem-list, .solution-list {
  list-style: none;
}

.problem-list li, .solution-list li {
  position: relative;
  padding-left: 1.75rem;
  margin-bottom: var(--space-sm);
  color: var(--color-text-secondary);
}

.problem-list li::before {
  content: "•";
  color: var(--color-error);
  font-weight: bold;
  position: absolute;
  left: 0;
  font-size: 1.4rem;
  top: -2px;
}

.solution-list li::before {
  content: "✓";
  color: var(--color-accent);
  font-weight: bold;
  position: absolute;
  left: 0;
  font-size: 1.2rem;
  top: 2px;
}

.service-card h3 {
  margin-bottom: var(--space-xs);
  color: var(--color-primary);
}

.service-card p {
  margin-bottom: 0;
  font-size: 0.95rem;
}

.trust-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-md);
  text-align: center;
}

.trust-item {
  padding: var(--space-md);
}

.trust-icon {
  font-size: 1.75rem;
  color: var(--color-accent);
  margin-bottom: var(--space-sm);
  font-weight: bold;
}

.form-group {
  margin-bottom: var(--space-md);
}

.form-group label {
  display: block;
  margin-bottom: var(--space-xs);
  font-weight: 500;
  color: var(--color-text-primary);
}

.form-control {
  width: 100%;
  padding: 0.85rem 1rem;
  border: 1px solid var(--color-border);
  border-radius: 6px;
  font-family: var(--font-body);
  font-size: 1rem;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.form-control:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px var(--color-accent-light);
}

.checkbox-group {
  display: flex;
  align-items: flex-start;
  gap: var(--space-sm);
}

.checkbox-group input {
  margin-top: 4px;
  width: 18px;
  height: 18px;
}

.footer {
  background: var(--color-primary);
  color: rgba(255,255,255,0.85);
  padding: var(--space-lg) 0;
  text-align: center;
  font-size: 0.95rem;
}

.footer a {
  color: white;
  text-decoration: underline;
}

.footer-links {
  display: flex;
  justify-content: center;
  gap: var(--space-lg);
  margin: var(--space-sm) 0;
  list-style: none;
}

@media (max-width: 768px) {
  .nav-links {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--color-surface);
    flex-direction: column;
    padding: var(--space-md);
    gap: var(--space-sm);
    border-bottom: 1px solid var(--color-border);
    display: none;
  }
  
  .nav-links.active { display: flex; }
  .nav-toggle { display: block; }
  
  .hero { padding: var(--space-xl) 0 var(--space-lg); }
  .section { padding: var(--space-lg) 0; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  html { scroll-behavior: auto; }
}

:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}