:root {
    --ink: #333333;
    --paper: #FFFFFF;
    --pencil: #666666;
    --line: #DDDDDD;
    --sans: Arial, Helvetica, sans-serif;
}

* { box-sizing: border-box; }

body {
    margin: 0;
    font-family: var(--sans);
    background: var(--paper);
    color: var(--ink);
    padding: 20px;
    line-height: 1.6;
}

.wrap { max-width: 640px; margin: 0 auto; width: 100%; }

h1 { font-size: 26px; margin: 0; color: #000; }
h2 { font-size: 16px; margin: 28px 0 8px 0; color: #000; }

p, li { font-size: 14px; color: var(--ink); }
ul { margin: 6px 0 0 0; padding-left: 20px; }
a { color: #2B5A75; }

.updated {
    color: var(--pencil);
    font-size: 13px;
    margin: 0;
}

.footer {
    margin-top: 36px;
    padding-top: 16px;
    border-top: 1px solid var(--line);
    font-size: 12px;
    color: var(--pencil);
}

.header-container {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 6px;
}

.home-link {
    border: 2px solid black;
    padding: 4px 12px;
    text-decoration: none;
    color: #2B5A75;
    font-size: 18px;
}

.home-link:hover {
    background-color: #ebebeb;
    cursor: pointer;
}

.msg {
    margin: 24px 0;
    font-size: 13.5px;
    line-height: 1.6;
    padding: 12px 14px;
    display: none;
}

.msg.show { display: block; }
.msg.ok { background: #E7F1E4; border: 1px solid #B7D3AE; color: #1F7A3D; }
.msg.notice { background: #F6E3DF; border: 1px solid #E0B4A9; color: #A6301E; }

.msg + * { margin-top: 0; }