body {
    position: relative;
    width: 100vw;
    height: 100vh;
    margin: 0;
    padding: 0;
}

header {
    position: relative;
    width: 100%;
    height: 30%;
    display: flex;
    justify-content: center;
    align-items: flex-end;
}

header > img {
    position: relative;
    width: auto;
    height: 70%;
}

main {
    position: relative;
    width: 100%;
    height: 65%;
    display: flex;
    justify-content: center;
    align-items: center;
}

footer {
    position: relative;
    width: 100%;
    height: 5%;
    color: rgb(255, 255, 255);
    background-color: rgb(164, 164, 165);
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 0.9em;
}

.side-bar {
    position: relative;
    width: 35%;
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    align-items: flex-end;
}

.side-bar > button {
    position: relative;
    width: 30%;
    height: 10%;
    outline: none;
    border: none;
    border-radius: 50px;
    background-image: linear-gradient(to bottom, rgb(250, 250, 250), rgb(220, 220, 220));
    box-shadow: 1px 1px 3px rgba(100, 100, 100, 0.6);
    margin: 5% 0;
    cursor: pointer;
}

.side-bar > button:nth-child(2) {
    color: rgb(255, 255, 255);
    background-image: linear-gradient(to bottom, rgb(248, 129, 227), rgb(160, 53, 141));
}

.side-bar > button:active {
    position: relative;
    top: 2px;
}

.projects {
    position: relative;
    width: 65%;
    height: 100%;
}

.project {
    position: relative;
    width: 60%;
    height: 20%;
    border-bottom: 1px solid rgb(0, 0, 0);
    margin-left: 5%;
    display: flex;
    justify-content: left;
    align-items: flex-end;
}

.project > .name {
    position: relative;
    width: 25%;
    height: 60%;
    display: flex;
    justify-content: center;
    align-items: center;
}

.project > .latest {
    position: relative;
    width: 60%;
    height: 60%;
    display: flex;
    justify-content: center;
    align-items: center;
}

.project > .latest::before {
    content: "最終更新日:";
    position: relative;
    font-size: 0.9em;
}

.project > .btn {
    position: relative;
    width: 15%;
    height: 60%;
    display: flex;
    justify-content: space-evenly;
    align-items: center;
}

.project > .btn > img {
    position: relative;
    width: auto;
    height: 40%;
    cursor: pointer;
}

.project > .btn > img:active {
    position: relative;
    top: 2px;
}

div#error {
    position: absolute;
    left: 50%;
    bottom: 0.5em;
    transform: translateX(-50%);
    color: rgb(255, 0, 0);
}

.dialog {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.3);
    font-size: 0.9em;
    z-index: 999;
    display: none;
}

.dialog.open {
    display: block;
}

.dialog-content {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 40%;
    height: 50%;
    border: 3px solid rgb(0, 0, 0);
    border-radius: 30px;
    background-color: rgb(255, 255, 255);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

.dialog-img {
    position: relative;
    width: 100%;
    height: 30%;
}

.dialog-img > img {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: auto;
    height: 50%;
}

.dialog-detail {
    position: relative;
    width: 100%;
    height: 40%;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

.dialog-title {
    font-size: 2em;
    font-weight: bold;
    letter-spacing: 0.2em;
    padding-left: 0.2em;
}

.dialog-detail > div:nth-child(2) {
    font-size: 1em;
    padding-top: 0.5em;
}

.dialog-detail > div:nth-child(2) > span:nth-child(2) {
    margin-right: 0.3em;
    font-size: 1.1em;
    text-decoration: underline;
}

.dialog-detail > div:nth-child(2) > p {
    color: rgb(255, 0, 0);
}

.dialog-btn {
    position: relative;
    width: 100%;
    height: 30%;
    display: flex;
    justify-content: space-evenly;
    align-items: center;
}

.dialog-btn > button {
    position: relative;
    width: 20%;
    height: 40%;
    outline: none;
    border: none;
    border-radius: 50px;
    background-image: linear-gradient(to bottom, rgb(250, 250, 250), rgb(220, 220, 220));
    box-shadow: 1px 1px 3px rgba(100, 100, 100, 0.6);
    cursor: pointer;
}

.dialog-btn > button:active {
    position: relative;
    top: 2px;
}