/* All */
* {
    margin: 0;
    padding: 0;
    background-color: snow;
    color: #222;
    font-family: Arial, Helvetica, sans-serif;
    font-weight: 400;
}

body {
    display: block;
}

/* header */
header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-bottom: solid #ccc 1px;
    box-shadow: 0px 3px 5px;
    padding: 5px;
    padding-left: 20px;
    padding-right: 20px;
}

.title {
    font-size: 1.5em;
    font-weight: 700;
}
.subtitle{
    font-size: 1em;
    font-weight: 500;
}

.hamburger {
    cursor: pointer;
}

.bar {
    display: block;
    width: 25px;
    height: 3px;
    margin: 5px auto;
    background-color: #222;
}

/* main */
main {
    display: flex;
    justify-content: space-between;
}

/* nav */
.category_nav {
    display: block;
    width: 20%;
    min-width: 250px;
    background-color: #333;
    transition: 3s ease;
    height: auto;
    position: fixed;
    right: -100%;
    transition: 0.3s;
    padding: 5px;
}

.category_nav.active {
    right: 0;
}

ul {
    background-color: transparent;
}

li {
    list-style: none;
    background-color: transparent;
    border-bottom: solid #111 1px;
    color: snow;
}

.nav_title {
    color: snow;
    font-size: 1.1em;
    padding: 3px;
}

a {
    text-decoration: none;
    background-color: transparent;
}

.nav_item {
    list-style: none;
    text-decoration: none;
    font-weight: 500;
    padding-left: 10px;
}


/* contents */
.contents {
    background-color: snow;
    height: 80vh;
    overflow-y: scroll;
    width: 100%;
    margin-top: 5px;
}

.contents::-webkit-scrollbar {
    display: none;
}

.content_box {
    margin: 0 auto;
    width: 80%;
    border-bottom: solid #222 1px;
    background-color: snow;
    padding: 20px;
    font-weight: 500;
}

.text {
    background-color: transparent;
}

#alert {
    text-align: right;
    background-color: snow;
    height: 20%;
    /* margin-top: 10px; */
}

/* footer */
form {
    display: flex;
    align-items: center;
    border-top: solid #ccc 1px;
    background-color: snow;
    position: fixed;
    bottom: 0;
    padding: 10px;
    width: 100%;
    height: auto;
    margin: 0;
    min-height: 50px;
}

#write_space {
    width: 80%;
    line-height: 30px;
    padding-left: 5px;
    padding-right: 5px;
    font-size: 1rem;
    border-radius: 5px;
    border: solid #3b3b3b 2px;
    height: 50px;
}

#submitBtn {
    width: auto;
    padding: 5px;
    padding-left: 10px;
    padding-right: 10px;
    border-radius: 15px;
    line-height: 30x;
    border: solid #3b3b3b 2px;
    color: #3b3b3b;
    margin-left: 5px;
    font-weight: 600;
    height: 50px;
}
#submitBtn:hover{
    background-color: rgb(229, 224, 224);
}