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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background-color: #1A1E24;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.container {
    position: relative;
    width: 100%;
    max-width: 400px;
    margin: 0 auto;
}

.background-cards {
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    z-index: 1;
}

.bg-card {
    position: absolute;
    background-color: rgba(33, 41, 54, 0.6);
    border-radius: 24px;
    opacity: 0.5;
}

.bg-card-1 {
    width: 90%;
    height: 95%;
    top: 5%;
    left: -5%;
    z-index: 1;
}

.bg-card-2 {
    width: 90%;
    height: 95%;
    top: 5%;
    right: -5%;
    z-index: 1;
}

.bg-card-3 {
    width: 95%;
    height: 98%;
    top: 8%;
    left: 2.5%;
    z-index: 1;
}

.main-card {
    position: relative;
    z-index: 2;
    background-color: #212936;
    border-radius: 24px;
    padding: 48px 32px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.headline {
    color: #FFFFFF;
    font-size: 32px;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 24px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.headline .line {
    display: block;
}

.description {
    color: #FFFFFF;
    font-size: 18px;
    font-weight: 400;
    line-height: 1.5;
    margin-bottom: 40px;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.description .line {
    display: block;
}

.cta-button {
    background-color: #4A8C9B;
    color: #FFFFFF;
    border: none;
    border-radius: 16px;
    padding: 16px 48px;
    font-size: 18px;
    font-weight: 700;
    cursor: pointer;
    box-shadow: 0 8px 24px rgba(74, 140, 155, 0.3);
    transition: transform 0.2s, box-shadow 0.2s;
    width: 100%;
    max-width: 280px;
    text-decoration: none;
    display: inline-block;
    text-align: center;
}

.cta-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 32px rgba(74, 140, 155, 0.4);
}

.cta-button:active {
    transform: translateY(0);
}

@media (max-width: 480px) {
    .main-card {
        padding: 40px 24px;
    }
    
    .headline {
        font-size: 28px;
    }
    
    .description {
        font-size: 16px;
    }
    
    .cta-button {
        font-size: 16px;
        padding: 14px 40px;
    }
}