:root{--navy:#1e3a5f;--text:#1f2937;--muted:#6b7280;--line:#e5e7eb;--bg:#f8fafc;--danger:#b45309}*{box-sizing:border-box}html,body{background:var(--bg);color:var(--text);margin:0;padding:0;font-family:-apple-system,BlinkMacSystemFont,Hiragino Sans,Hiragino Kaku Gothic ProN,Yu Gothic,Meiryo,sans-serif;font-size:17px;line-height:1.8}.wrap{width:100%;max-width:560px;margin:0 auto;padding:24px 16px 48px}.card{border:1px solid var(--line);background:#fff;border-radius:12px;margin-bottom:16px;padding:24px 20px}h1{color:var(--navy);margin:0 0 20px;font-size:21px;line-height:1.5}h2{color:var(--navy);margin:0 0 12px;font-size:18px}p{margin:0 0 16px}.btn{background:var(--navy);color:#fff;cursor:pointer;text-align:center;border:none;border-radius:8px;width:100%;min-height:56px;padding:14px 16px;font-size:18px;font-weight:700;display:block}.btn:disabled{cursor:not-allowed;background:#9ca3af}.btn.secondary{color:var(--navy);border:1px solid var(--navy);background:#fff}.note{color:var(--muted);font-size:15px}.error{color:#991b1b;white-space:pre-wrap;background:#fef2f2;border:1px solid #fecaca;border-radius:8px;padding:14px 16px;font-size:15px}.ok{color:#166534;background:#f0fdf4;border:1px solid #bbf7d0;border-radius:8px;padding:14px 16px;font-size:15px}.mono{word-break:break-all;font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:13px}a{color:var(--navy)}