/* main css */
html {
    font-family: "Noto Sans JP", "Hiragino Kaku Gothic ProN", "Meiryo", sans-serif;
    width: 100%;
    margin: 0;
    box-sizing: border-box;
}

*, *::before, *::after {
    box-sizing: inherit;
}

body {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    margin: 0;
    padding: 0;
    background-color: #f4f4f4;
}

header {
    width: 100%;
    min-height: 60px;
    text-align: center;
    /* background-color: #4a7fae; */
    background-color: #5b87a8bb;
    /* background-color: #4faedc; */
}

main {
    flex: 1;
    width: 100%;
    padding: 20px;
}

footer {
    width: 100%;
    min-height: 20px;
    padding: 10px 0;
    text-align: center;
    background-color: #5b86a875;
}

h1 {
    margin: 0;
    padding: 10px 0;
}

a {
    display: block;
    color: #333;
    text-decoration: none;
}

a:hover {
    background-color: #ccc;
}

ul {
    list-style-type: none;
    padding: 0;
}

li {
    margin: 10px 0;
    padding: 10px;
    background-color: #e9e9e9;
    border-radius: 5px;
}
.list {
    background-color: #e2e2e2;
    margin: 5px 0;
    padding: 10px;
    border-radius: 4px;
}


.container {
    max-width: 500px;
    margin: 0 auto;
    width: 100%;
}

input[type="text"] {
    width: 100%;
    padding: 16px;
    font-size: 1.2rem;
    border: 1px solid #ccc;
    border-radius: 8px;
    box-sizing: border-box;
    margin-bottom: 20px;
}

input[type="submit"], button {
    width: 100%;
    padding: 16px;
    font-size: 1.2rem;
    background-color: green;
    color: white;
    border: none;
    border-radius: 8px;
    cursor: pointer;
}

input[type="submit"]:hover {
    background-color: darkgreen;
}

button {
    margin-top: 12px;
    background-color: gray;
}

button:hover {
    background-color: #555;
}