:root{font-family:system-ui,Avenir,Helvetica,Arial,sans-serif;line-height:1.5;font-weight:400;color-scheme:light dark;color:#ffffffde;background-color:#242424;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}a{font-weight:500;color:#646cff;text-decoration:inherit}a:hover{color:#535bf2}body{margin:0;display:flex;place-items:center;min-width:320px;min-height:100vh}h1{font-size:3.2em;line-height:1.1}button{border-radius:8px;border:1px solid transparent;padding:.6em 1.2em;font-size:1em;font-weight:500;font-family:inherit;background-color:#1a1a1a;cursor:pointer;transition:border-color .25s}button:hover{border-color:#646cff}button:focus,button:focus-visible{outline:4px auto -webkit-focus-ring-color}@media (prefers-color-scheme: light){:root{color:#213547;background-color:#fff}a:hover{color:#747bff}button{background-color:#f9f9f9}}body{background:linear-gradient(135deg,#1a4a3c,#0f3e2a,#1b5a3e,#0d3526,#0a2e1f);min-height:100vh;margin:0;font-family:Segoe UI,Tahoma,Geneva,Verdana,sans-serif}#root{max-width:1280px;margin:0 auto;padding:2rem;text-align:center;min-height:100vh}.app-container{padding:30px;max-width:600px;margin:0 auto;text-align:left;background:#fffffff2;border-radius:12px;box-shadow:0 10px 30px #0000004d,0 1px 8px #0003;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border:1px solid rgba(255,255,255,.3)}.app-title{margin-bottom:25px;color:#2c3e50;text-align:center;font-weight:700;text-shadow:0 2px 4px rgba(0,0,0,.1)}.input-section{margin-bottom:20px}.input-label{display:block;margin-bottom:12px;font-weight:700;color:#34495e;font-size:16px}.text-input{width:100%;padding:20px;border:none;border-radius:8px;font-size:18pt;font-family:Hiragino Sans,Yu Gothic,Meiryo,Takao,IPAexGothic,IPAPGothic,VL PGothic,Noto Sans CJK JP,sans-serif;resize:vertical;box-sizing:border-box;min-height:200px;line-height:1.6;color:#000!important;background:linear-gradient(to bottom,#fefefe,#f8f8f8);box-shadow:inset 0 1px 3px #0000001a,inset 0 -1px #fffc,0 2px 8px #00000026;border:1px solid #e0e0e0;border-top:1px solid #f0f0f0;border-bottom:1px solid #d0d0d0;background-image:linear-gradient(90deg,transparent 0px,transparent 19px,rgba(200,200,200,.3) 20px,transparent 21px),linear-gradient(rgba(200,200,200,.1) 50%,transparent 50%);background-size:100% 24px;transition:all .3s ease}.text-input:focus{outline:none;color:#000!important;box-shadow:inset 0 1px 3px #0000001a,inset 0 -1px #fffc,0 4px 12px #0003,0 0 0 3px #3498db4d;border-color:#3498db}.text-input::placeholder{color:#7f8c8d!important;opacity:1}.create-button{background:linear-gradient(135deg,#3498db,#2980b9);color:#fff;border:none;padding:15px 25px;border-radius:8px;font-size:16px;font-weight:700;cursor:pointer;transition:all .3s ease;box-shadow:0 4px 15px #3498db4d,0 2px 4px #0000001a;text-transform:uppercase;letter-spacing:.5px}.create-button:hover:not(:disabled){background:linear-gradient(135deg,#2980b9,#1f639a);transform:translateY(-2px);box-shadow:0 6px 20px #3498db66,0 4px 8px #00000026}.create-button:disabled{background:linear-gradient(135deg,#95a5a6,#7f8c8d);cursor:not-allowed;transform:none;box-shadow:0 2px 4px #0000001a}.button-section{display:flex;gap:15px;justify-content:center;align-items:center;margin-top:20px}.clear-button{background:linear-gradient(135deg,#e74c3c,#c0392b);color:#fff;border:none;padding:15px 25px;border-radius:8px;font-size:16px;font-weight:700;cursor:pointer;transition:all .3s ease;box-shadow:0 4px 15px #e74c3c4d,0 2px 4px #0000001a;text-transform:uppercase;letter-spacing:.5px}.clear-button:hover:not(:disabled){background:linear-gradient(135deg,#c0392b,#a93226);transform:translateY(-2px);box-shadow:0 6px 20px #e74c3c66,0 4px 8px #00000026}.clear-button:disabled{background:linear-gradient(135deg,#95a5a6,#7f8c8d);cursor:not-allowed;transform:none;box-shadow:0 2px 4px #0000001a}.preview-section{margin-top:20px;padding:10px;background-color:#f8f9fa;border-radius:4px}.preview-title{margin:0 0 10px}.preview-text{white-space:pre-wrap;margin:0}.copyright{position:fixed;bottom:16px;right:16px;font-size:12px;color:#fffc;background:#0000004d;padding:8px 12px;border-radius:6px;z-index:9999;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);text-shadow:0 1px 2px rgba(0,0,0,.5);margin:0;box-sizing:border-box;pointer-events:none}