/**
 * Line Number Tool Tool Specific Styling
 */
*{margin:0;padding:0;box-sizing:border-box}
body{font-family:'Inter',sans-serif;background:transparent;color:#0f172a}
.ln-card{background:#fff;border-radius:12px;box-shadow:0 4px 20px rgba(0,0,0,.06);padding:32px;max-width:720px;margin:0 auto}
.ln-label{display:block;font-size:14px;font-weight:600;margin-bottom:8px;color:#0f172a}
.ln-textarea{width:100%;min-height:200px;padding:14px 16px;border:2px solid #e2e8f0;border-radius:8px;font-family:'Inter',sans-serif;font-size:15px;line-height:1.6;color:#0f172a;background:#fff;transition:border-color .2s ease;resize:vertical}
.ln-textarea:focus{outline:none;border-color:#4f46e5}
.ln-textarea::placeholder{color:#94a3b8}
.ln-btn-row{display:flex;gap:10px;margin:20px 0;flex-wrap:wrap}
.ln-btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 24px;border:none;border-radius:8px;font-family:'Inter',sans-serif;font-size:14px;font-weight:600;cursor:pointer;transition:all .2s ease;height:48px}
.ln-btn-primary{background:#4f46e5;color:#fff}
.ln-btn-primary:hover{background:#4338ca}
.ln-btn-secondary{background:#f1f5f9;color:#475569}
.ln-btn-secondary:hover{background:#e2e8f0}
.ln-btn-copied{background:#22c55e!important;color:#fff!important}
.ln-stat{font-size:13px;font-weight:500;color:#64748b;margin-bottom:16px}
.ln-output{width:100%;min-height:200px;padding:14px 16px;border:2px solid #e2e8f0;border-radius:8px;font-family:'Inter',monospace;font-size:14px;line-height:1.8;background:#f8fafc;color:#0f172a;white-space:pre-wrap;word-break:break-word;resize:vertical}
[data-theme="dark"] .ln-card{background:#1e293b;box-shadow:0 4px 20px rgba(0,0,0,.3)}
[data-theme="dark"] .ln-label,[data-theme="dark"] .ln-textarea{color:#e2e8f0}
[data-theme="dark"] .ln-textarea{background:#0f172a;border-color:#334155}
[data-theme="dark"] .ln-textarea::placeholder{color:#64748b}
[data-theme="dark"] .ln-textarea:focus{border-color:#818cf8}
[data-theme="dark"] .ln-btn-secondary{background:#334155;color:#e2e8f0}
[data-theme="dark"] .ln-btn-secondary:hover{background:#475569}
[data-theme="dark"] .ln-stat{color:#94a3b8}
[data-theme="dark"] .ln-output{background:#0f172a;border-color:#334155;color:#e2e8f0}
@media(max-width:600px){.ln-card{padding:20px}.ln-output{min-height:150px}}