:root{--bg: #1a1d29;--panel: #242838;--text: #eef1f7;--muted: #9aa2b8;--accent: #d8b06a;--accent-strong: #b98e3f;--border: #333849;font-family:system-ui,-apple-system,Segoe UI,Hiragino Kaku Gothic ProN,Noto Sans JP,Meiryo,sans-serif}*{box-sizing:border-box}body{margin:0;background:radial-gradient(circle at top,#222738,var(--bg));color:var(--text);min-height:100vh}.page{max-width:760px;margin:0 auto;padding:40px 20px 60px}.hero{text-align:center;margin-bottom:32px}.hero h1{font-size:clamp(1.7rem,7vw,2.6rem);margin:0 0 4px;letter-spacing:.06em}.tagline{margin:0 0 10px;font-size:clamp(.82rem,3.2vw,.95rem);letter-spacing:.04em;color:var(--accent)}.lead{color:var(--muted);margin:0;line-height:1.7}.controls{background:var(--panel);border:1px solid var(--border);border-radius:16px;padding:24px;display:flex;flex-wrap:wrap;gap:16px;align-items:flex-end}.field{display:flex;flex-direction:column;gap:6px;flex:1 1 260px}.field--small{flex:0 1 200px}.field--full{flex:1 1 100%}.field--checkbox-row{flex-direction:row;align-items:center;gap:8px;position:relative}.field--checkbox{display:flex;align-items:center;gap:8px;cursor:pointer}.field--checkbox input{width:16px;height:16px;accent-color:var(--accent);cursor:pointer}.field--checkbox span{font-size:.9rem;color:var(--text)}.info-btn{width:18px;height:18px;flex:0 0 auto;border-radius:50%;border:1px solid var(--border);background:#1b1f2c;color:var(--muted);font-size:.72rem;font-style:italic;font-family:Georgia,Times New Roman,serif;line-height:1;cursor:pointer;display:inline-flex;align-items:center;justify-content:center;padding:0}.info-btn:hover,.info-btn[aria-expanded=true]{color:var(--accent);border-color:var(--accent)}.tooltip{position:absolute;top:calc(100% + 8px);left:0;z-index:10;max-width:280px;padding:10px 12px;border-radius:8px;border:1px solid var(--border);background:#1b1f2c;color:var(--muted);font-size:.8rem;line-height:1.5;box-shadow:0 8px 24px #00000059}.theme-picker{display:flex;gap:8px;flex-wrap:wrap}.theme-chip{padding:9px 18px;border-radius:999px;border:1px solid var(--border);background:#1b1f2c;color:var(--muted);font-size:.9rem;cursor:pointer;transition:border-color .15s ease,color .15s ease,background .15s ease}.theme-chip:hover{color:var(--text);border-color:var(--accent)}.theme-chip--active{background:#d8b06a26;border-color:var(--accent);color:var(--accent);font-weight:700}.field-label{font-size:.8rem;color:var(--muted)}input,select,textarea{padding:11px 13px;border-radius:10px;border:1px solid var(--border);background:#1b1f2c;color:var(--text);font-size:.95rem}textarea{resize:vertical;font-family:inherit;line-height:1.5}input:focus,select:focus,textarea:focus{outline:2px solid var(--accent);border-color:var(--accent)}.actions{display:flex;flex-wrap:wrap;gap:10px;flex:1 1 100%}.btn{padding:11px 20px;border-radius:10px;border:1px solid var(--border);background:#2c3145;color:var(--text);font-size:.95rem;cursor:pointer;white-space:nowrap;transition:transform .08s ease,background .15s ease}.btn:hover{background:#343a52}.btn:active{transform:translateY(1px)}.btn--primary{background:linear-gradient(180deg,var(--accent),var(--accent-strong));border-color:var(--accent-strong);color:#2a1e07;font-weight:700}.btn--primary:hover{filter:brightness(1.05);background:linear-gradient(180deg,var(--accent),var(--accent-strong))}.error{flex:1 1 100%;margin:0;color:#ff9b9b;font-size:.9rem}.preview{margin-top:28px;display:flex;justify-content:center}canvas{border-radius:8px;box-shadow:0 12px 40px #00000073}.footer{margin-top:28px;text-align:center;color:var(--muted);font-size:.85rem;line-height:1.7}.contact{margin-top:12px}.contact a{color:var(--accent);text-decoration:none;border-bottom:1px solid rgba(216,176,106,.4)}.contact a:hover{color:var(--accent-strong);border-bottom-color:var(--accent-strong)}.trademark{margin-top:16px;font-size:.78rem;opacity:.7}.copyright{margin-top:4px;font-size:.78rem;opacity:.7}