:root {
  --primary: #009688; /* Teal */
  --primary-dark: #00796B;
  --secondary: #FF5722; /* Orange Accent */
  --text: #333333;
  --text-light: #757575;
  --bg: #ffffff;
  --surface: #f9fafb;
  --max-width: 1200px;
}

* {
  box-sizing: border-box;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  margin: 0;
  padding: 0;
  color: var(--text);
  background-color: var(--bg);
  line-height: 1.6;
}

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 20px;
}

/* Header */
header {
  background: var(--bg);
  box-shadow: 0 2px 4px rgba(0,0,0,0.05);
  position: sticky;
  top: 0;
  z-index: 100;
}

nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 70px;
}

.logo {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--primary);
  text-decoration: none;
}

.nav-links {
  display: flex;
  gap: 20px;
}

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

.btn {
  padding: 10px 20px;
  border-radius: 6px;
  text-decoration: none;
  font-weight: 600;
  transition: background 0.2s;
}

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

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

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

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

/* Hero */
.hero {
  background: linear-gradient(135deg, var(--surface) 0%, #e0f2f1 100%);
  padding: 80px 0;
  text-align: center;
}

.hero h1 {
  font-size: 3rem;
  margin-bottom: 20px;
  color: var(--text);
}

.hero p {
  font-size: 1.25rem;
  color: var(--text-light);
  margin-bottom: 40px;
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
}

/* Features */
.features {
  padding: 80px 0;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 40px;
  margin-top: 40px;
}

.feature-card {
  background: var(--bg);
  padding: 30px;
  border-radius: 12px;
  box-shadow: 0 4px 12px rgba(0,0,0,0.05);
  border: 1px solid var(--surface);
}

.feature-icon {
  font-size: 2rem;
  color: var(--primary);
  margin-bottom: 20px;
}

/* Footer */
footer {
  background: var(--text);
  color: white;
  padding: 40px 0;
  text-align: center;
}

footer a {
  color: #ccc;
  text-decoration: none;
}

@media (max-width: 768px) {
  .hero h1 {
    font-size: 2rem;
  }
}