:root {
    --primary: #4CAF50;
    --primary-dark: #2E7031;
    --secondary: #E57373;
    --secondary-dark: #C62828;
    --disabled: #A9A9A9;
    --white: #ffffff;
    --black: #000000;
    --grey: #f2f0f0;
}

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

body {
    font-family: 'Poppins', sans-serif;
    background: var(--grey);
    color: var(--black);
    line-height: 1.6;
    scroll-behavior: smooth;
    padding-bottom: 80px;
}

.hero {
    background: linear-gradient(135deg, var(--primary-dark), var(--primary));
    color: var(--white);
    text-align: center;
    padding: 4rem 2rem 2rem;
}

.hero h1 {
    font-size: 2.75rem;
    font-weight: 800;
    margin-bottom: 1rem;
}

.hero p {
    font-size: 1.25rem;
    margin-bottom: 2.5rem;
}

.tagline {
    font-size: 1.125rem;
    font-style: italic;
    color: #e0ffe1;
    margin-top: -1rem;
    margin-bottom: 2rem;
}

.store-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

.store-buttons img {
    height: 50px;
    transition: transform 0.3s ease;
}

.store-buttons img:hover {
    transform: scale(1.05);
}

.mockup-preview img,
.screenshots img {
    max-width: 300px;
    width: 100%;
    border-radius: 1rem;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
    transition: transform 0.3s ease;
}

.mockup-preview img:hover,
.screenshots img:hover {
    transform: scale(1.02);
}

.section {
    padding: 4rem 2rem;
    max-width: 1100px;
    margin: 0 auto;
}

.section-title {
    text-align: center;
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 2rem;
    color: var(--primary-dark);
}

.features {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
}

.feature-card {
    background: var(--white);
    border-radius: 1rem;
    padding: 2rem;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.05);
    display: flex;
    align-items: flex-start;
    gap: 1rem;
}

.feature-icon {
    font-size: 1.5rem;
}

.feature-card h3 {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 0.25rem;
    color: var(--primary-dark);
}

.screenshots {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 1.5rem;
    margin-top: 2rem;
}

.download-banner {
    display: none;
}

@media (min-width: 768px) {
    .hero h1 {
        font-size: 3.5rem;
    }

    .hero p {
        font-size: 1.5rem;
    }

    .features {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 600px) {
    .download-banner {
        display: flex;
        justify-content: center;
        gap: 1rem;
        padding: 1rem;
        background: var(--white);
        border-top: 1px solid #ccc;
        position: fixed;
        bottom: 0;
        width: 100%;
        z-index: 100;
    }

    .download-banner img {
        height: 40px;
    }
}