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

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background: #ffffff;
    color: #222;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    text-align: center;
    padding: 2rem;
}

.container {
    max-width: 720px;
}

h1 {
    font-size: 7rem;
    font-weight: 300;
    letter-spacing: -0.08em;
    color: #1d3557;
    margin-bottom: 0.25rem;
}

h2 {
    font-size: 1.75rem;
    font-weight: 400;
    color: #555;
    margin-bottom: 2rem;
}

p {
    font-size: 1.15rem;
    line-height: 1.8;
    color: #666;
}

.logo {
    font-family: "Zen Old Mincho", serif;
    color: rgb(2, 38, 88);
}

button {
    background: rgb(2, 38, 88);
    color: white;
    border: none;
    border-radius: 8px;
    padding: 0.9rem 1.8rem;
    font-size: 1rem;
    font-weight: 600;
    font-family: inherit;
    cursor: pointer;
    transition: background-color 0.2s ease, transform 0.15s ease;
}

    button:hover {
        background: rgb(8, 55, 120);
    }

    button:active {
        transform: translateY(1px);
    }

    button:focus-visible {
        outline: 3px solid rgba(2, 38, 88, 0.25);
        outline-offset: 3px;
    }

@media (max-width: 768px) {
    h1 {
        font-size: 4.5rem;
    }

    h2 {
        font-size: 1.3rem;
    }

    p {
        font-size: 1rem;
    }
}