@import url('https://fonts.googleapis.com/css2?family=Varela+Round&display=swap');

body {
    margin: 0;
    min-height: 100vh;
    background: #ffffff;
    color: #111;
    font-family: "Varela Round", sans-serif;
}

.back-button {
    position: fixed;
    top: 16px;
    left: 16px;
    text-decoration: none;
    font-size: 1.25rem;
    padding: 0.9rem 1.8rem;
    border-radius: 0.75rem;
    background: #ffffff;
    color: #111;
    box-shadow: 0 10px 24px rgba(0, 0, 0, 0.18);
    transition: transform 150ms ease, box-shadow 150ms ease, background 150ms ease;
}

.back-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 14px 28px rgba(0, 0, 0, 0.18);
    background: #f7f7f7;
}

.back-button:active {
    transform: translateY(0);
    box-shadow: 0 8px 18px rgba(0, 0, 0, 0.2);
}

.back-button:focus-visible {
    outline: 3px solid rgba(17, 17, 17, 0.3);
    outline-offset: 3px;
}

h1 {
    text-align: center;
    font-size: 2.5rem;
    margin: 5rem 1rem 1rem;
}

h2 {
    max-width: 900px;
    margin: 2rem auto 0.75rem;
    padding: 0 1.5rem;
    font-size: 1.6rem;
}

h3 {
    max-width: 900px;
    margin: 1.5rem auto 0.75rem;
    padding: 0 1.5rem;
    font-size: 1.3rem;
}

p {
    max-width: 900px;
    margin: 0.75rem auto;
    padding: 0 1.5rem;
    font-size: 1.05rem;
}

details {
    max-width: 900px;
    margin: 1.25rem auto 1.5rem;
    padding: 1rem 1.2rem;
    border-radius: 0.75rem;
    background: #ffffff;
    box-shadow: 0 10px 24px rgba(0, 0, 0, 0.12);
}

summary {
    font-size: 1.1rem;
    cursor: pointer;
}

details p {
    padding: 0;
    margin: 0.6rem 0 0;
    word-break: break-word;
}