:root {
    --primary-color: #007AFF;
    --secondary-color: #5856D6;
    --background-color: #F2F2F7;
    --text-color: #1C1C1E;
}

body {
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--background-color);
}

/* Header & Navigation */
header {
    background-color: white;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    position: sticky;
    top: 0;
    z-index: 100;
}

nav {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.logo img {
    height: 40px;
}

nav ul {
    display: flex;
    gap: 2rem;
    list-style: none;
}

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

/* Hero Section */
.hero {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    max-width: 1200px;
    margin: 4rem auto;
    padding: 0 1rem;
}

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

.cta-button {
    display: inline-block;
    background-color: var(--primary-color);
    color: white;
    padding: 1rem 2rem;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    text-align: center;
}

/* Features Section */
.features {
    padding: 4rem 1rem;
    background-color: white;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.feature-card {
    text-align: center;
    padding: 2rem;
    border-radius: 12px;
    background-color: var(--background-color);
}

.feature-card img {
    width: 64px;
    height: 64px;
    margin-bottom: 1rem;
}

/* Screenshots Section */
.screenshots {
    padding: 4rem 1rem;
}

.screenshot-carousel {
    display: flex;
    gap: 1rem;
    overflow-x: auto;
    padding: 2rem 0;
    scroll-snap-type: x mandatory;
}

.screenshot-carousel img {
    height: 600px;
    border-radius: 24px;
    scroll-snap-align: center;
}

/* Download Section */
.download {
    text-align: center;
    padding: 4rem 1rem;
    background-color: white;
}

.app-store-button img {
    height: 48px;
}

/* Footer */
footer {
    text-align: center;
    padding: 2rem;
    background-color: var(--text-color);
    color: white;
}

/* Responsive Design */
@media (max-width: 768px) {
    .hero {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    nav ul {
        display: none;
    }
    
    .screenshot-carousel img {
        height: 400px;
    }
}