/* style.css */
:root {
    --primary: #007AFF;
    --dark: #1c1c1e;
    --light: #f2f2f7;
    --text: #333;
}

body { margin: 0; padding: 0; font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif; color: var(--text); line-height: 1.6; }
a { text-decoration: none; color: var(--primary); transition: 0.2s; }
a:hover { opacity: 0.8; }

/* Navigation */
header { background: white; border-bottom: 1px solid #eee; padding: 15px 0; position: sticky; top: 0; z-index: 100; }
.nav-container { max-width: 1000px; margin: 0 auto; padding: 0 20px; display: flex; justify-content: space-between; align-items: center; }
.logo { display: flex; align-items: center; font-weight: bold; font-size: 18px; color: var(--dark); }
.logo img { height: 40px; margin-right: 10px; border-radius: 8px; }
.nav-links a { margin-left: 20px; font-weight: 500; color: var(--dark); }
.nav-links .cta { background: var(--primary); color: white; padding: 8px 16px; border-radius: 20px; }

/* Hero Section */
.hero { text-align: center; padding: 80px 20px; background: var(--light); }
.hero h1 { font-size: 48px; margin-bottom: 10px; letter-spacing: -1px; }
.hero p { font-size: 20px; color: #666; max-width: 600px; margin: 0 auto 30px; }
.download-btn { background: var(--dark); color: white; padding: 15px 30px; border-radius: 30px; font-size: 18px; font-weight: bold; display: inline-block; }

/* Content Sections */
.container { max-width: 800px; margin: 0 auto; padding: 60px 20px; }
h2 { font-size: 32px; margin-top: 40px; }
h3 { font-size: 24px; margin-top: 30px; }
.feature-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 30px; margin-top: 40px; }
.feature-card { background: var(--light); padding: 30px; border-radius: 16px; }

/* Footer */
footer { background: var(--dark); color: #888; padding: 40px 20px; text-align: center; margin-top: 60px; }
footer a { color: #ccc; margin: 0 10px; font-size: 14px; }

/* Mobile */
@media (max-width: 600px) {
    .hero h1 { font-size: 36px; }
    .nav-links { display: none; } /* Simplified mobile nav for now */
}