body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, #e5f2e0, #c9dbc8); /* fondo suave */
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    margin: 0;
}

form {
    background: #ffffff;
    padding: 30px 40px;
    border-radius: 15px;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
    display: flex;
    flex-direction: column;
    width: 100%;
    max-width: 400px;
    transition: transform 0.3s ease;
    border: 2px solid #8a9a5b; /* borde verde musgo */
}

form:hover {
    transform: scale(1.02);
}

input, button {
    margin: 12px 0;
    padding: 12px 15px;
    border: 1px solid #8a9a5b; /* verde musgo */
    border-radius: 8px;
    font-size: 1rem;
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

input:focus {
    border-color: #6b7a41; /* verde musgo más oscuro */
    box-shadow: 0 0 5px rgba(107, 122, 65, 0.4);
    outline: none;
}

button {
    background: #8a9a5b; /* verde musgo */
    color: #fff;
    border: none;
    font-weight: bold;
    letter-spacing: 1px;
    transition: background 0.3s ease, transform 0.2s ease;
}

button:hover {
    background: #6b7a41; /* tono más oscuro al pasar el mouse */
    transform: scale(1.02);
}