@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap');

:root {
  --primary: #1d4ed8;
  --primary-hover: #1e40af;
  --bg-main: #ffffff;
  --bg-subtle: #f9fafb;
  --text-main: #111827;
  --text-subtle: #4b5563;
  --border: #e5e7eb;
  --transition: all 0.3s ease;
  --radius: 0.75rem;
  --container: 1200px;
}

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

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

h1, h2, h3, h4 {
  font-weight: 700;
  color: var(--text-main);
}

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

button {
  cursor: pointer;
  border: none;
  outline: none;
  font-family: inherit;
  font-weight: 500;
  transition: var(--transition);
}

.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* Header */
header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: rgba(255, 255, 255, 0.8);
  backdrop-filter: blur(10px);
  z-index: 1000;
  border-bottom: 1px solid var(--border);
  height: 80px;
  display: flex;
  align-items: center;
}

.nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
}

.logo {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--primary);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.nav-links {
  display: flex;
  gap: 2rem;
  align-items: center;
}

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

.btn-primary {
  background-color: var(--primary);
  color: white;
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius);
  font-weight: 600;
}

.btn-primary:hover {
  background-color: var(--primary-hover);
  transform: translateY(-1px);
}

/* Hero Section */
.hero {
  padding: 180px 0 100px;
  text-align: center;
}

.hero h1 {
  font-size: 4rem;
  margin-bottom: 1.5rem;
  letter-spacing: -0.02em;
}

.hero p {
  font-size: 1.25rem;
  color: var(--text-subtle);
  max-width: 600px;
  margin: 0 auto 3rem;
}

.hero-cta {
  display: flex;
  justify-content: center;
  gap: 1.5rem;
}

.btn-outline {
  background: white;
  color: var(--text-main);
  border: 1px solid var(--border);
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.btn-outline:hover {
  background-color: var(--bg-subtle);
}

/* Features Section */
.features {
  padding: 100px 0;
  background-color: var(--bg-subtle);
}

.section-head {
  text-align: center;
  max-width: 700px;
  margin: 0 auto 60px;
}

.section-head h2 {
  font-size: 2.5rem;
  margin-bottom: 1rem;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.feature-card {
  background: white;
  padding: 2.5rem;
  border-radius: var(--radius);
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
  transition: var(--transition);
}

.feature-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
}

.feature-icon {
  width: 50px;
  height: 50px;
  background-color: #ebf2ff;
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 12px;
  margin-bottom: 1.5rem;
  font-size: 1.5rem;
}

/* Pricing Section */
.pricing {
  padding: 100px 0;
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  margin-top: 60px;
}

.pricing-card {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 3rem 2rem;
  text-align: center;
  transition: var(--transition);
}

.pricing-card.popular {
  border-color: var(--primary);
  position: relative;
  box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
}

.popular-badge {
  position: absolute;
  top: 0;
  left: 50%;
  transform: translate(-50%, -50%);
  background: var(--primary);
  color: white;
  padding: 0.25rem 1rem;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 600;
}

.price {
  font-size: 3rem;
  font-weight: 700;
  margin: 1.5rem 0;
}

.price span {
  font-size: 1rem;
  color: var(--text-subtle);
  font-weight: 400;
}

.pricing-features {
  list-style: none;
  margin: 2rem 0;
  text-align: left;
}

.pricing-features li {
  margin-bottom: 0.75rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

/* Footer */
footer {
  padding: 80px 0 40px;
  background: var(--text-main);
  color: white;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 4rem;
  margin-bottom: 60px;
}

.footer-branding p {
  margin-top: 1rem;
  color: #9ca3af;
  max-width: 300px;
}

.footer-links h4 {
  color: white;
  margin-bottom: 1.5rem;
}

.footer-links ul {
  list-style: none;
}

.footer-links li {
  margin-bottom: 0.75rem;
}

.footer-links a {
  color: #9ca3af;
  position: relative;
  display: inline-block;
}

.footer-links a:hover {
  color: white;
  transform: translateX(5px);
}

.footer-bottom {
  border-top: 1px solid #374151;
  padding-top: 40px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: #9ca3af;
  font-size: 0.875rem;
}

/* Animations */
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

.animate {
  animation: fadeIn 0.8s ease forwards;
}

/* Responsive */
@media (max-width: 992px) {
  .feature-grid, .pricing-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .hero h1 { font-size: 2.5rem; }
  .feature-grid, .pricing-grid, .footer-grid {
    grid-template-columns: 1fr;
  }
}