* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
}

body {
    background: #f4f6f9;
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 20px;
}

.container {
    width: 100%;
    max-width: 500px;
}

.card {
    background: white;
    padding: 50px 40px;
    border-radius: 16px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.08);
    text-align: center;
}

.card h1 {
    color: #1f2937;
    margin-bottom: 10px;
    font-size: 2rem;
}

.card p {
    color: #6b7280;
    margin-bottom: 35px;
}

.buttons {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.pdf-btn {
    background: #1f4ed8;
    color: white;
    border: none;
    padding: 16px;
    border-radius: 10px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.pdf-btn:hover {
    background: #1d3fb8;
    transform: translateY(-2px);
}

.pdf-btn:active {
    transform: translateY(0);
}

@media (min-width: 600px) {
    .buttons {
        flex-direction: row;
    }

    .pdf-btn {
        flex: 1;
    }
}