* { margin: 0; padding: 0; box-sizing: border-box; }
:root {
  --primary: #25D366;
  --primary-dark: #128C7E;
  --dark: #1f2937;
  --gray: #6b7280;
  --light: #f9fafb;
  --border: #e5e7eb;
}
body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Inter', sans-serif;
  color: var(--dark);
  line-height: 1.6;
  background: #fff;
}
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }

/* Header */
header {
  background: white;
  padding: 16px 0;
  border-bottom: 1px solid var(--border);
  position: sticky; top: 0; z-index: 100;
}
.nav { display: flex; justify-content: space-between; align-items: center; }
.logo {
  display: flex; align-items: center; gap: 10px;
  font-size: 20px; font-weight: 700; color: var(--dark);
  text-decoration: none;
}
.logo-icon {
  width: 36px; height: 36px;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
}
.logo-icon svg { width: 22px; height: 22px; }
nav ul { list-style: none; display: flex; gap: 28px; align-items: center; }
nav a {
  color: var(--gray); text-decoration: none; font-weight: 500;
  transition: color 0.2s;
}
nav a:hover { color: var(--dark); }
.btn {
  display: inline-block; padding: 10px 24px; border-radius: 8px;
  font-weight: 600; text-decoration: none; transition: all 0.2s;
  border: none; cursor: pointer;
}
.btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: white;
}
.btn-primary:hover { transform: translateY(-1px); box-shadow: 0 4px 12px rgba(37,211,102,0.3); }

/* Hero */
.hero {
  padding: 100px 0; text-align: center;
  background: linear-gradient(180deg, #f0fdf4 0%, #ffffff 100%);
}
.hero h1 {
  font-size: clamp(36px, 5vw, 56px);
  font-weight: 800; line-height: 1.1;
  margin-bottom: 20px;
}
.hero h1 .gradient {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent;
}
.hero p {
  font-size: clamp(16px, 2vw, 20px); color: var(--gray);
  max-width: 700px; margin: 0 auto 32px;
}
.hero-cta { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }
.btn-large { padding: 14px 32px; font-size: 16px; }
.btn-outline {
  background: white; color: var(--dark);
  border: 1px solid var(--border);
}

/* Section */
section { padding: 80px 0; }
h2 {
  font-size: clamp(28px, 4vw, 40px);
  font-weight: 800; text-align: center; margin-bottom: 16px;
}
.section-subtitle {
  text-align: center; color: var(--gray);
  font-size: 18px; max-width: 600px;
  margin: 0 auto 48px;
}

/* Features */
.features-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
}
.feature-card {
  background: white; padding: 32px; border-radius: 12px;
  border: 1px solid var(--border); transition: all 0.2s;
}
.feature-card:hover {
  border-color: var(--primary); box-shadow: 0 10px 30px rgba(0,0,0,0.08);
  transform: translateY(-2px);
}
.feature-icon {
  width: 48px; height: 48px; border-radius: 12px;
  background: rgba(37,211,102,0.1); color: var(--primary);
  display: flex; align-items: center; justify-content: center;
  font-size: 24px; margin-bottom: 20px;
}
.feature-card h3 { font-size: 20px; font-weight: 700; margin-bottom: 8px; }
.feature-card p { color: var(--gray); font-size: 15px; }

/* Integrations */
.integrations {
  background: var(--light); border-radius: 16px; padding: 48px;
  text-align: center;
}
.integration-logos {
  display: flex; justify-content: center; gap: 40px; flex-wrap: wrap;
  margin-top: 32px; align-items: center;
}
.integration-logo {
  display: flex; align-items: center; gap: 10px;
  color: var(--dark); font-weight: 600;
}

/* CTA */
.cta-section {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: white; border-radius: 16px; padding: 64px 32px;
  text-align: center;
}
.cta-section h2 { color: white; }
.cta-section p { opacity: 0.9; font-size: 18px; margin-bottom: 32px; }
.cta-section .btn {
  background: white; color: var(--primary-dark);
}

/* Footer */
footer {
  background: #0f172a; color: #94a3b8;
  padding: 64px 0 32px;
}
.footer-grid {
  display: grid; grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px; margin-bottom: 48px;
}
.footer-col h4 {
  color: white; font-size: 14px; font-weight: 700;
  text-transform: uppercase; letter-spacing: 0.5px; margin-bottom: 16px;
}
.footer-col ul { list-style: none; }
.footer-col li { margin-bottom: 12px; }
.footer-col a { color: #94a3b8; text-decoration: none; transition: color 0.2s; }
.footer-col a:hover { color: white; }
.footer-logo { margin-bottom: 16px; color: white; }
.footer-desc { font-size: 14px; line-height: 1.6; max-width: 320px; }
.footer-bottom {
  border-top: 1px solid #1e293b; padding-top: 24px;
  display: flex; justify-content: space-between; flex-wrap: wrap; gap: 12px;
  font-size: 14px;
}

/* Legal Pages */
.legal-page {
  padding: 60px 0;
  max-width: 800px;
  margin: 0 auto;
}
.legal-page h1 {
  font-size: 36px;
  font-weight: 800;
  margin-bottom: 16px;
}
.legal-page .updated {
  color: var(--gray);
  font-size: 14px;
  margin-bottom: 40px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--border);
}
.legal-page h2 {
  text-align: left;
  font-size: 24px;
  margin: 40px 0 16px;
}
.legal-page h3 {
  font-size: 18px;
  font-weight: 700;
  margin: 24px 0 12px;
}
.legal-page p {
  margin-bottom: 16px;
  color: var(--dark);
  line-height: 1.7;
}
.legal-page ul, .legal-page ol {
  margin: 16px 0 16px 24px;
}
.legal-page li {
  margin-bottom: 8px;
  line-height: 1.7;
}
.legal-page strong { color: var(--dark); }
.legal-page a { color: var(--primary-dark); text-decoration: underline; }

/* Contact Form */
.contact-form {
  max-width: 600px;
  margin: 40px auto;
  background: white;
  padding: 32px;
  border-radius: 12px;
  border: 1px solid var(--border);
}
.form-group {
  margin-bottom: 20px;
}
.form-group label {
  display: block;
  margin-bottom: 8px;
  font-weight: 600;
  font-size: 14px;
}
.form-group input,
.form-group textarea {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-family: inherit;
  font-size: 15px;
}
.form-group textarea {
  min-height: 120px;
  resize: vertical;
}
.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--primary);
}
.contact-info {
  background: var(--light);
  padding: 24px;
  border-radius: 12px;
  margin-top: 24px;
}
.contact-info p {
  margin-bottom: 8px;
}

@media (max-width: 768px) {
  nav ul { display: none; }
  nav ul li:last-child { display: block; }
  .footer-grid { grid-template-columns: 1fr; }
  .hero { padding: 60px 0; }
  section { padding: 60px 0; }
  .logo span { display: none; }
}