.sign-prompt-generator{font-family:-apple-system,BlinkMacSystemFont,"Hiragino Kaku Gothic ProN","Noto Sans JP",Meiryo,sans-serif;color:#172b4d;background:#fff;border:1px solid #e1e9f3;border-radius:18px;padding:30px;max-width:960px;margin:24px auto;box-shadow:0 8px 28px #123b6110;box-sizing:border-box}
.sign-prompt-generator *{box-sizing:border-box}
.sign-prompt-generator .spg-title{font-size:1.55rem;line-height:1.4;margin:0 0 10px}
.sign-prompt-generator p{line-height:1.7;color:#556578}
.sign-prompt-generator .spg-options{border:1px solid #dbe3ed;border-radius:12px;margin:24px 0 14px;padding:14px 18px}
.sign-prompt-generator .spg-options legend{font-size:1rem;font-weight:700;padding:0 6px;color:#172b4d}
.sign-prompt-generator .spg-option{display:flex;gap:12px;align-items:flex-start;padding:12px 4px;cursor:pointer;margin:0;border-bottom:1px solid #e7edf3;font-weight:400}
.sign-prompt-generator .spg-option:last-child{border-bottom:0}
.sign-prompt-generator .spg-option input[type="checkbox"]{flex:0 0 auto;width:20px;height:20px;accent-color:#0866c3;margin:2px 0 0;padding:0;cursor:pointer}
.sign-prompt-generator .spg-option span{display:block;min-width:0}
.sign-prompt-generator .spg-option strong{display:block;font-size:1rem;color:#172b4d}
.sign-prompt-generator .spg-option small{display:block;font-size:.86rem;line-height:1.6;color:#556578;margin-top:3px}
.sign-prompt-generator .spg-size-panel[hidden]{display:none!important}
.sign-prompt-generator .fields{display:flex;gap:16px;flex-wrap:wrap;margin:20px 0 12px}
.sign-prompt-generator .field{flex:1;min-width:180px}
.sign-prompt-generator .field label,.sign-prompt-generator .spg-prompt-label{display:block;font-weight:700;margin-bottom:7px;color:#172b4d}
.sign-prompt-generator .field input{width:100%;font-size:1.2rem;padding:12px;border:1px solid #b8c9dc;border-radius:8px;background:#fff;color:#172b4d}
.sign-prompt-generator input:focus-visible,.sign-prompt-generator textarea:focus-visible,.sign-prompt-generator button:focus-visible{outline:2px solid #2679d3;outline-offset:2px}
.sign-prompt-generator .summary{padding:14px 18px;background:#eaf4ff;border-radius:9px;margin:16px 0;color:#153f71;line-height:1.8}
.sign-prompt-generator .summary strong{color:#075eb9}
.sign-prompt-generator .spg-prompt-label{margin-top:24px;margin-bottom:10px}
.sign-prompt-generator textarea{display:block;width:100%;min-height:480px;resize:vertical;line-height:1.65;padding:16px;font-size:14px;border:1px solid #b8c9dc;border-radius:9px;white-space:pre-wrap;background:#fff;color:#172b4d}
.sign-prompt-generator button{border:0;border-radius:8px;background:#0866c3;color:white;font-weight:700;padding:13px 24px;cursor:pointer;font-size:1rem;margin-top:14px}
.sign-prompt-generator button:hover{background:#064c92}
.sign-prompt-generator button:disabled{opacity:.5;cursor:not-allowed}
.sign-prompt-generator .small{font-size:.9rem}
.sign-prompt-generator .notice{margin-top:24px;padding:16px 18px;border:1px solid #dbe3ed;border-radius:9px;background:#f8fafc;color:#4a5568;line-height:1.8}
.sign-prompt-generator .notice strong{display:block;color:#334155;margin-bottom:4px}
.sign-prompt-generator .notice p{margin:0;color:#4a5568}
.sign-prompt-generator .status{display:inline-block;margin-left:14px;color:#08784c;font-weight:700;line-height:1.7}
@media(max-width:600px){.sign-prompt-generator{padding:18px}.sign-prompt-generator .fields{gap:12px}.sign-prompt-generator textarea{min-height:430px}.sign-prompt-generator .status{display:block;margin:10px 0 0}}