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

:root {
    --purple: #5046E5;
    --blue: #3B82F6;
    --black: #1A1A1A;
    --white: #ffffff;
    --light-bg: #ECF3FF;
    --text-purple: #7570EC;
    --dark-purple: #3730A3;
}

body {
    font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: var(--black);
    background-color: var(--light-bg);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
}

main {
    max-width: 1200px;
    margin: 0 auto;
    padding: 4rem 2rem;
    text-align: center;
}

.logo-container {
    width: 120px;
    height: 120px;
    margin: 0 auto 2rem;
    background-color: var(--white);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
}

.logo {
    width: 100%;
    height: 100%;
    object-fit: contain;
    padding: 1rem;
}

h1 {
    font-size: 2.5rem;
    color: var(--dark-purple);
    margin-bottom: 1rem;
    font-weight: 700;
}

.subtitle {
    font-size: 1.25rem;
    color: var(--text-purple);
    max-width: 600px;
    margin: 0 auto 4rem;
}

.features {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    margin-bottom: 4rem;
}

.feature-card {
    background: var(--white);
    padding: 2rem;
    border-radius: 16px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
}

.feature-card h2 {
    color: var(--dark-purple);
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.feature-card p {
    color: #666;
    font-size: 1rem;
}

.survey-container {
    background: var(--white);
    padding: 2rem;
    border-radius: 16px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
    margin-bottom: 4rem;
}

.survey-container h2 {
    color: var(--dark-purple);
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.survey-description {
    color: var(--text-purple);
    font-size: 1.1rem;
    margin-bottom: 2rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.get-started {
    background-color: var(--dark-purple);
    color: var(--white);
    border: none;
    padding: 1rem 2.5rem;
    font-size: 1.1rem;
    border-radius: 8px;
    cursor: pointer;
    font-weight: 600;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.get-started:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(55, 48, 163, 0.2);
}

footer {
    margin-top: 4rem;
    color: var(--text-purple);
    font-size: 0.9rem;
}

@media (max-width: 900px) {
    .features {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 600px) {
    main {
        padding: 2rem 1rem;
    }

    h1 {
        font-size: 2rem;
    }

    .features {
        grid-template-columns: 1fr;
    }

    .subtitle {
        font-size: 1.1rem;
        margin-bottom: 2rem;
    }
}