:root {
    --primary: #6A1B9A;
    --primary-hover: #5a32a3;
    --text-dark: #212529;
    --text-light: #6c757d;
    --bg-light: #f8f9fa;
    --white: #ffffff;
}

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

body {
    font-family: 'Poppins', sans-serif;
    color: var(--text-dark);
    line-height: 1.6;
    background-color: var(--white);
    text-align: center;
}

/* Container */
.container {
    max-width: 960px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Navbar */
nav {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px 0;
    gap: 12px;
}

nav img {
    width: 40px;
    height: 40px;
}

nav h3 {
    font-weight: 700;
    font-size: 1.25rem;
}

/* Hero Section */
.hero {
    padding: 60px 20px;
}

.hero h1 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 16px;
    line-height: 1.2;
}

.hero p {
    font-size: 1.1rem;
    color: var(--text-light);
    margin-bottom: 32px;
    max-width: 500px;
    margin-left: auto;
    margin-right: auto;
}

.btn {
    display: inline-block;
    background-color: var(--primary);
    color: white;
    padding: 12px 32px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    transition: background-color 0.2s;
}

.btn:hover {
    background-color: var(--primary-hover);
}

.features {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    justify-content: center;
    padding: 40px 0;
}

.card {
    background: var(--bg-light);
    padding: 32px;
    border-radius: 24px;
    flex: 1;
    min-width: 280px;
    max-width: 400px;
    text-align: left;
}

.card h3 {
    margin-bottom: 8px;
    font-size: 1.25rem;
}

.card.quit h3 {
    color: #D32F2F;
}

.card.do h3 {
    color: var(--primary);
}

.mockup {
    margin-top: 40px;
    max-width: 100%;
    height: auto;
    border-radius: 12px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

footer {
    margin-top: 80px;
    padding: 40px 0;
    border-top: 1px solid #eee;
    color: var(--text-light);
    font-size: 0.9rem;
}

footer a {
    color: var(--text-dark);
    text-decoration: none;
    margin: 0 8px;
}

@media (max-width: 600px) {
    .hero h1 {
        font-size: 2rem;
    }

    .features {
        flex-direction: column;
        align-items: center;
    }

    .card {
        width: 100%;
    }
}