#page {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 15px;
    background-color: #fff;
}

#page-inner {
    display: flex;
}

header {
    height: 55px;
    margin-bottom: 15px;
    border-bottom: 1px solid #646465;
}

header #burger {
    display: none;
}

header #burger div {
    width: 35px;
    height: 5px;
    background-color: #333;
    margin-bottom: 6px;
}

header img {
    display: block;
    position: absolute;
}

header h1 {
    margin: 0;
    padding-left: 215px;
    padding-right: 15px;
    text-align: center;
    line-height: 2;
    white-space: nowrap;
    text-overflow: ellipsis;
    overflow: hidden;
}

main {
    min-width: calc(100% - 255px);
    max-width: calc(100% - 255px);
}

.main-inner,
.notification-error,
.notification-info {
    width: 100%;
    border: 1px solid #646465;
    padding: 15px;
}

.notification-error,
.notification-info {
    font-weight: bold;
    margin-bottom: 15px;
}

.notification-error {
    color: #990000;
}

.notification-info {
    color: #2e3f5f;
}

.notification-error li,
.notification-info li {
    display: block;
}

nav.side-nav {
    min-width: 240px;
    max-width: 240px;
    margin-right: 15px;
    padding: 10px;
    background-color: #ebebeb;
    position: relative;
}

nav.sub {
    margin-top: -5px;
}

nav a {
    display: block;
    margin-bottom: 10px;
    color: #666;
    font-size: 15px;
    font-family: Palatino, Georgia, Times, sans-serif;
    font-weight: bold;
    white-space: nowrap;
    overflow: hidden;
    transition: letter-spacing 300ms;
    letter-spacing: 0;
}

nav a.sub {
    font-size: 12px;
    margin-bottom: 5px;
    margin-left: 15px;
}

nav a.is-active {
    color: #333;
}

nav a:hover {
    text-decoration: none;
    letter-spacing: .5px;
}

nav hr {
    margin: 0 0 10px 0;
}

nav h3 {
    margin: 20px 0 10px 0;
    padding: 8px;
    font-size: 14px;
    text-align: center;
    text-transform: uppercase;
    background-color: #2e3f5f;
    color: #fff;
    line-height: 1;
}

footer {
    margin-top: 15px;
    text-align: right;
    font-size: 10px;
    font-weight: bold;
}

footer a {
    font-size: 10px;
    font-weight: bold;
}

@media (max-width: 768px) {
    header h1 {
        font-size: 18px;
    }
}

@media (max-width: 640px) {
    header {
        height: 50px;
    }

    header #burger {
        display: block;
        position: absolute;
        left: 15px;
        top: 18px;
        cursor: pointer;
    }

    header a {
        display: none;
    }

    header h1 {
        padding-left: 50px;
    }

    nav.side-nav {
        z-index: 999;
        transform: translateX(-255px);
        transition: transform 300ms;
    }

    nav.side-nav.is-active {
        transform: translateX(0);
    }

    main {
        margin-left: -255px;
        min-width: 100%;
        max-width: 100%;
    }
}
