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

body {
    font-family: 'Poppins', sans-serif;
    line-height: 1.6;
    color: #333;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

header {
    padding: 20px 0;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
}

.logo {
    font-size: 2em;
    font-weight: 700;
    color: #fff;
    text-align: center;
}

.hero {
    text-align: center;
    padding: 80px 20px;
    color: #fff;
}

.hero h2 {
    font-size: 3.5em;
    margin-bottom: 20px;
    font-weight: 700;
}

.tagline {
    font-size: 1.5em;
    margin-bottom: 20px;
    font-weight: 600;
}

.description {
    font-size: 1.1em;
    margin-bottom: 40px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.cta-button {
    display: inline-block;
    padding: 15px 40px;
    background: #fff;
    color: #667eea;
    text-decoration: none;
    border-radius: 50px;
    font-weight: 600;
    font-size: 1.1em;
    transition: transform 0.3s, box-shadow 0.3s;
}

.cta-button:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
}

.features {
    background: #fff;
    padding: 60px 20px;
}

.features h3, .partners h3 {
    text-align: center;
    font-size: 2.5em;
    margin-bottom: 40px;
    color: #333;
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.feature {
    padding: 30px;
    background: #f8f9fa;
    border-radius: 10px;
    text-align: center;
}

.feature h4 {
    font-size: 1.5em;
    margin-bottom: 15px;
    color: #667eea;
}

.partners {
    background: #f8f9fa;
    padding: 60px 20px;
}

.banner-ads {
    display: flex;
    flex-wrap: wrap;
    gap: 30px;
    justify-content: center;
    align-items: flex-start;
}

.banner-ad {
    display: block;
    background: #fff;
    border: 1px solid #ddd;
    border-radius: 8px;
    overflow: hidden;
    text-decoration: none;
    color: #333;
    transition: transform 0.3s, box-shadow 0.3s;
}

.banner-ad:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
}

.leaderboard {
    width: 728px;
    height: 90px;
    display: flex;
    align-items: center;
    padding: 10px 20px;
}

.leaderboard img {
    height: 60px;
    margin-right: 20px;
}

.leaderboard .banner-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.rectangle {
    width: 300px;
    height: 250px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 20px;
    text-align: center;
}

.banner-logo {
    font-family: 'Poppins', sans-serif;
    font-size: 1.2em;
    font-weight: bolder;
    color: #1E90FF;
    margin-bottom: 15px;
}

.banner-tagline {
    font-size: 0.9em;
    margin-bottom: 15px;
    line-height: 1.4;
}

.banner-cta {
    display: inline-block;
    padding: 8px 20px;
    background: #667eea;
    color: #fff;
    border-radius: 5px;
    font-size: 0.85em;
    font-weight: 600;
    margin-top: 10px;
}

footer {
    background: rgba(0, 0, 0, 0.8);
    color: #fff;
    text-align: center;
    padding: 30px 20px;
}

footer a {
    color: #667eea;
    text-decoration: none;
}

footer a:hover {
    text-decoration: underline;
}

@media (max-width: 768px) {
    .hero h2 {
        font-size: 2.5em;
    }

    .tagline {
        font-size: 1.2em;
    }

    .features h3, .partners h3 {
        font-size: 2em;
    }

    .leaderboard {
        width: 100%;
        max-width: 728px;
        height: auto;
        min-height: 90px;
        flex-direction: column;
        padding: 15px;
    }

    .leaderboard img {
        margin-right: 0;
        margin-bottom: 10px;
    }

    .rectangle {
        width: 100%;
        max-width: 300px;
    }
}

@media (max-width: 480px) {
    .hero h2 {
        font-size: 2em;
    }

    .cta-button {
        padding: 12px 30px;
        font-size: 1em;
    }

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