:root { --bg: #f6f7f9; --card: #fff; --text: #1f2937; --muted: #6b7280; --accent: #2563eb; --line: #e5e7eb; }
* { box-sizing: border-box; }
body { margin: 0; font: 16px/1.5 -apple-system, "Segoe UI", Roboto, sans-serif; color: var(--text); background: var(--bg); }
a { color: var(--accent); }
main { max-width: 720px; margin: 0 auto; padding: 16px; }
.top { display: flex; justify-content: space-between; align-items: center; padding: 12px 16px; background: var(--card); border-bottom: 1px solid var(--line); }
.top nav { display: flex; gap: 16px; align-items: center; }
.brand { font-weight: 700; color: var(--text); text-decoration: none; }
.who { color: var(--muted); font-size: 14px; margin-right: 8px; }
.sub { display: flex; gap: 16px; margin-bottom: 16px; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 12px; padding: 16px; margin-bottom: 16px; }
.center { text-align: center; }
.muted { color: var(--muted); }
.notice { background: #ecfdf5; border: 1px solid #a7f3d0; border-radius: 8px; padding: 8px 12px; }
.notes { white-space: pre-wrap; }
.list { list-style: none; margin: 0; padding: 0; }
.list li { border-top: 1px solid var(--line); }
.list li:first-child { border-top: 0; }
.row { display: flex; justify-content: space-between; align-items: center; gap: 12px; padding: 12px 0; text-decoration: none; color: inherit; }
.name { font-weight: 600; }
.button, button { display: inline-block; padding: 12px 20px; border: 0; border-radius: 10px; background: var(--accent); color: #fff; font: inherit; font-weight: 600; text-decoration: none; cursor: pointer; }
button.small { padding: 6px 12px; font-size: 14px; }
button.link { background: none; color: var(--accent); padding: 0; font-weight: 400; }
.inline { display: inline-flex; gap: 8px; align-items: center; margin: 0; }
.stack { display: flex; flex-direction: column; gap: 8px; margin: 12px 0; }
.stack label { display: flex; flex-direction: column; gap: 4px; font-size: 14px; color: var(--muted); }
input, textarea { font: inherit; padding: 8px; border: 1px solid var(--line); border-radius: 8px; color: var(--text); }
fieldset { border: 1px solid var(--line); border-radius: 8px; }
table { width: 100%; border-collapse: collapse; background: var(--card); }
th, td { text-align: left; padding: 8px; border-bottom: 1px solid var(--line); font-size: 14px; }
code { font-size: 13px; background: #f3f4f6; padding: 1px 4px; border-radius: 4px; }
h1 { font-size: 22px; margin: 8px 0 12px; }
h2 { font-size: 18px; margin: 8px 0; }
h3 { font-size: 16px; margin: 4px 0; }