:root{font-family:system-ui,-apple-system,Segoe UI,Roboto,Helvetica Neue,Arial,Noto Sans JP,Hiragino Kaku Gothic ProN,Meiryo,sans-serif;line-height:1.5;font-weight:400;color:#111827;background-color:#fff}*{box-sizing:border-box}html,body{margin:0;padding:0;height:100%;background:#f8fafc}#root{min-height:100%}:root{--bg-color: #f0f4f8;--panel-bg: #ffffff;--text-main: #1e293b;--border-color: #94a3b8;--primary-color: #2563eb;--primary-hover: #1d4ed8;--success-color: #059669;--success-hover: #047857;--error-color: #dc2626;--error-bg: #fee2e2}html,body{margin:0;padding:0;height:100vh;overflow:hidden}#root{display:flex;flex-direction:column;height:100vh;width:100%}body{margin:0;padding:0;height:100vh;display:flex;flex-direction:column;font-family:Helvetica Neue,Arial,Hiragino Kaku Gothic ProN,Hiragino Sans,Meiryo,sans-serif;background-color:var(--bg-color);color:var(--text-main);box-sizing:border-box}*,*:before,*:after{box-sizing:inherit}header{padding:15px 20px;background-color:var(--panel-bg);border-bottom:2px solid var(--border-color);display:flex;align-items:center;box-shadow:0 2px 4px #0000000d}.table-name-container{display:flex;align-items:center;gap:15px}.table-name-container label{font-size:1.2rem;font-weight:700}.table-name-container input{font-size:1.2rem;padding:8px 12px;border:2px solid var(--border-color);border-radius:6px;outline:none;width:300px;transition:border-color .2s}.table-name-container input:focus{border-color:var(--primary-color);box-shadow:0 0 0 3px #2563eb33}.db-select-container{display:flex;align-items:center;gap:10px;margin-left:20px}.db-select-container select{font-size:1.1rem;padding:8px 12px;border:2px solid var(--border-color);border-radius:6px;outline:none;cursor:pointer}.error-container{display:none;align-items:center;background-color:var(--error-bg);color:var(--error-color);padding:8px 16px;margin-left:20px;font-weight:700;font-size:1rem;border-radius:6px;border:1px solid #f87171}main{display:flex;flex-direction:column;flex:1;padding:20px;gap:15px;overflow:hidden}.editor-pane{flex:1;display:flex;flex-direction:column;background-color:var(--panel-bg);border:2px solid var(--border-color);border-radius:8px;box-shadow:0 4px 6px #0000000d;overflow:hidden}.pane-header{background-color:#e2e8f0;padding:12px 20px;font-size:1.1rem;font-weight:700;border-bottom:2px solid var(--border-color);display:flex;justify-content:space-between;align-items:center}textarea{flex:1;width:100%;padding:15px;font-size:1.2rem;font-family:Consolas,Monaco,monospace;border:none;resize:none;outline:none;line-height:1.6;color:var(--text-main);background-color:#fafaf9}textarea:focus{background-color:#fff;box-shadow:inset 0 0 0 3px var(--primary-color)}.action-center{display:flex;align-items:center;justify-content:center;padding:5px 0}button{font-size:1.2rem;font-weight:700;color:#fff;border:none;border-radius:8px;cursor:pointer;transition:all .2s}button:active{transform:translateY(2px)}.btn-convert{background-color:var(--primary-color);padding:12px 40px;box-shadow:0 4px 6px #2563eb4d}.btn-convert:hover{background-color:var(--primary-hover)}.btn-copy{background-color:var(--success-color);padding:8px 16px;font-size:1rem;box-shadow:0 4px 6px #0596694d}.btn-copy:hover{background-color:var(--success-hover)}