:root{
    --font-family-sans-serif: "Helvetica Neue", Helvetica, Arial, "Hiragino Sans", "游ゴシック体", "Yu Gothic", YuGothi, Meiryo, sans-serif;
    --font-family-monospace: SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
}

body {
    font-family: var(--font-family-sans-serif);
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-family-sans-serif);
}

a {
    text-decoration:none;
}


.bg-dark {
    background-color: #1e90ff !important
}

.navbar-dark .navbar-nav .nav-link {
  color: rgba(255,255,255,.60);
}

nav .nav-link:hover {
  color: rgba(255,255,255,.90);
}

.btn-primary {
    background-color: #1e90ff;
    border-color: #1e90ff
}

.btn-info {
    color: #ffffff;
    background-color: #00bfff;
    border-color: #00bfff
}

.btn-info:hover {
    color: #ffffff;
    background-color: #00a8d7;
    border-color: #00a8d7
}

.btn-outline-info {
    color: #00bfff;
    border-color: #00bfff
}

.btn-outline-info:hover {
    color: #ffffff;
    background-color: #00a8d7;
    border-color: #00a8d7
}

.color-done {
    color: #32cd32;
}