:root {
    --primary-color: #2563eb;
    --text-primary: #1f2937;
    --text-secondary: #4b5563;
    --background: #ffffff;
    --card-background: #f8fafc;
    --accent-color: #3b82f6;
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    line-height: 1.5;
    color: var(--text-primary);
    background-color: var(--background);
}

.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 2rem;
    max-width: 1200px;
    margin: 0 auto;
    gap: 2rem;
}

.hero-content {
    flex: 1;
    max-width: 500px;
}

h1 {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.tagline {
    font-size: 1.5rem;
    color: var(--text-secondary);
    margin-bottom: 1rem;
}

.app-stores {
    display: flex;
    gap: 2rem;
    margin-top: 1rem;
}

.store-button img {
    height: 140px;
    transition: transform 0.2s ease;
}

.store-button:hover img {
    transform: translateY(-2px);
}

.hero-image {
    flex: 1;
    position: relative;
    display: flex;
    justify-content: center;
}

.demo-video {
    max-width: 50%;
    height: auto;
    border-radius: 20px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}

.features {
    padding: 4rem 2rem;
    background-color: var(--card-background);
    display: flex;
    justify-content: center;
    gap: 1.5rem;
    max-width: 1400px;
    margin: 0 auto;
    flex-wrap: nowrap;
}

.feature-card {
    background: var(--background);
    padding: 1.5rem;
    border-radius: 1rem;
    text-align: center;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
    flex: 1;
    min-width: 240px;
    max-width: 300px;
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

.feature-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto 1.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
}

.feature-icon img {
    width: 40px;
    height: 40px;
}

.feature-card h3 {
    font-size: 1.25rem;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.feature-card p {
    color: var(--text-secondary);
    font-size: 0.875rem;
    line-height: 1.4;
}

footer {
    text-align: center;
    padding: 2rem;
    color: var(--text-secondary);
    font-size: 0.875rem;
}

@media (max-width: 1200px) {
    .features {
        flex-wrap: wrap;
        justify-content: center;
    }

    .feature-card {
        min-width: 220px;
        max-width: 260px;
    }
}

@media (max-width: 768px) {
    .hero {
        flex-direction: column;
        text-align: center;
        padding-top: 4rem;
    }

    .hero-content {
        max-width: 100%;
    }

    .app-stores {
        justify-content: center;
    }

    .hero-image {
        margin-top: 3rem;
    }

    .phone-mockup {
        max-height: 400px;
    }

    .phone-mockup.iphone {
        transform: rotate(-5deg) translateX(10px) scale(0.9);
    }

    .phone-mockup.android {
        transform: rotate(5deg) translateX(-10px) scale(0.9);
    }

    h1 {
        font-size: 2.5rem;
    }

    .tagline {
        font-size: 1.25rem;
    }

    .features {
        padding: 2rem 1rem;
        flex-direction: column;
        align-items: center;
    }

    .feature-card {
        max-width: 100%;
        width: 100%;
    }
}