/* Reset and base styles */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --color-primary: #2563eb;
  --color-primary-dark: #1d4ed8;
  --color-secondary: #0f172a;
  --color-text: #334155;
  --color-text-light: #64748b;
  --color-background: #ffffff;
  --color-background-alt: #f8fafc;
  --color-accent: #10b981;
  --font-family: 'Exo 2', system-ui, -apple-system, sans-serif;
}

html {
  scroll-behavior: smooth;
}

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

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Hero Section */
.hero {
  background: linear-gradient(135deg, var(--color-secondary) 0%, #1e293b 100%);
  color: white;
  padding: 100px 24px 120px;
  text-align: center;
}

.logo {
  font-size: 3.5rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
}

.tagline {
  font-size: 1.5rem;
  font-weight: 500;
  color: #94a3b8;
  margin-bottom: 24px;
}

.subtitle {
  font-size: 1.125rem;
  color: #cbd5e1;
  max-width: 600px;
  margin: 0 auto 32px;
  line-height: 1.7;
}

.badge {
  display: inline-block;
  background: var(--color-accent);
  color: white;
  padding: 8px 24px;
  border-radius: 50px;
  font-weight: 600;
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* Built By Section */
.built-by {
  background: var(--color-primary);
  color: white;
  padding: 24px;
  text-align: center;
}

.built-by p {
  font-size: 1.125rem;
  font-weight: 500;
  margin: 0;
}

/* Features Section */
.features {
  padding: 80px 24px;
  background: var(--color-background-alt);
}

.features h2 {
  text-align: center;
  font-size: 2rem;
  font-weight: 700;
  color: var(--color-secondary);
  margin-bottom: 48px;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 32px;
}

.feature {
  background: white;
  padding: 32px;
  border-radius: 12px;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
  text-align: center;
}

.feature-icon {
  width: 56px;
  height: 56px;
  background: #eff6ff;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px;
}

.feature-icon svg {
  width: 28px;
  height: 28px;
  color: var(--color-primary);
}

.feature h3 {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--color-secondary);
  margin-bottom: 12px;
}

.feature p {
  color: var(--color-text-light);
  font-size: 0.975rem;
}

/* Signup Section */
.signup {
  padding: 80px 24px;
  text-align: center;
  background: white;
}

.signup h2 {
  font-size: 2rem;
  font-weight: 700;
  color: var(--color-secondary);
  margin-bottom: 16px;
}

.signup > .container > p {
  color: var(--color-text-light);
  font-size: 1.125rem;
  margin-bottom: 32px;
}

.signup-form {
  max-width: 500px;
  margin: 0 auto;
}

.form-placeholder {
  background: var(--color-background-alt);
  border: 2px dashed #e2e8f0;
  border-radius: 8px;
  padding: 40px;
  color: var(--color-text-light);
  font-style: italic;
}

/* Footer */
.footer {
  background: var(--color-secondary);
  color: #94a3b8;
  padding: 32px 24px;
  text-align: center;
  font-size: 0.875rem;
}

/* Responsive adjustments */
@media (max-width: 768px) {
  .hero {
    padding: 60px 24px 80px;
  }

  .logo {
    font-size: 2.5rem;
  }

  .tagline {
    font-size: 1.25rem;
  }

  .subtitle {
    font-size: 1rem;
  }

  .features h2,
  .signup h2 {
    font-size: 1.5rem;
  }

  .features,
  .signup {
    padding: 60px 24px;
  }
}