:root { --blue: #2f6fdb; --bg: #f4f6fa; --card: #fff; --text: #222; --muted: #666; --ok: #1e8e3e; --ng: #c5221f; }
* { box-sizing: border-box; }
body { margin: 0; font-family: system-ui, -apple-system, "Hiragino Sans", "Noto Sans JP", sans-serif; background: var(--bg); color: var(--text); }
header { background: var(--blue); color: #fff; padding: 16px; }
h1 { margin: 0; font-size: 20px; }
.sub { margin: 6px 0 0; font-size: 13px; opacity: .9; }
main { padding: 12px 16px 32px; max-width: 640px; margin: 0 auto; }
.card { background: var(--card); border-radius: 12px; padding: 12px 16px; margin-top: 12px; box-shadow: 0 1px 2px rgba(0,0,0,.08); }
h2 { font-size: 16px; margin: 0 0 8px; }
.status, .steps { list-style: none; padding: 0; margin: 0; }
.status li { padding: 4px 0; font-size: 14px; }
.steps li { margin: 8px 0; }
button { width: 100%; padding: 14px; font-size: 16px; border: 0; border-radius: 10px; background: var(--blue); color: #fff; }
button:disabled { background: #b8c7e6; }
.note, .howto { font-size: 13px; color: var(--muted); }
pre { white-space: pre-wrap; word-break: break-all; font-size: 13px; margin: 0; min-height: 3em; }
.ok { color: var(--ok); font-weight: bold; }
.ng { color: var(--ng); font-weight: bold; }