/**
 * CSV To JSON Tool Specific Styling
 */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
:root{--primary:#4f46e5;--bg:transparent;--card:#fff;--shadow:0 4px 20px rgba(0,0,0,.06);--text:#0f172a;--muted:#64748b;--border:#e2e8f0;--radius:12px;--input-radius:8px;--transition:all 0.2s ease}
[data-theme="dark"]{--card:#1e293b;--shadow:0 4px 20px rgba(0,0,0,.3);--text:#f1f5f9;--muted:#94a3b8;--border:#334155}
body{font-family:'Inter',sans-serif;background:var(--bg);color:var(--text);line-height:1.5;-webkit-font-smoothing:antialiased}
.converter{max-width:720px;margin:0 auto}
.card{background:var(--card);border-radius:var(--radius);box-shadow:var(--shadow);padding:28px}
.title{font-size:1.25rem;font-weight:700;margin-bottom:20px;text-align:center}
.field{margin-bottom:16px}
.field label{display:block;font-size:.8125rem;font-weight:600;color:var(--muted);margin-bottom:6px;text-transform:uppercase;letter-spacing:.04em}
.field textarea{width:100%;min-height:160px;border:1.5px solid var(--border);border-radius:var(--input-radius);padding:12px 14px;font-family:'Inter',sans-serif;font-size:.875rem;color:var(--text);background:var(--card);transition:var(--transition);outline:none;resize:vertical;line-height:1.6}
.field textarea:focus{border-color:var(--primary);box-shadow:0 0 0 3px rgba(79,70,229,.12)}
.field textarea::placeholder{color:var(--muted)}
.controls{display:flex;gap:10px;align-items:center;flex-wrap:wrap;margin-bottom:16px}
.btn{height:40px;padding:0 18px;border:none;border-radius:8px;font-family:'Inter',sans-serif;font-size:.875rem;font-weight:600;cursor:pointer;transition:var(--transition);display:inline-flex;align-items:center;gap:6px}
.btn-primary{background:var(--primary);color:#fff}
.btn-primary:hover{background:#4338ca}
.btn-secondary{background:rgba(79,70,229,.08);color:var(--primary)}
.btn-secondary:hover{background:rgba(79,70,229,.15)}
[data-theme="dark"] .btn-secondary{background:rgba(79,70,229,.2)}
.toggle-group{display:flex;align-items:center;gap:8px}
.toggle-label{font-size:.8125rem;color:var(--muted);font-weight:500}
.toggle{position:relative;width:44px;height:24px;background:var(--border);border-radius:12px;cursor:pointer;transition:var(--transition);border:none;padding:0}
.toggle.active{background:var(--primary)}
.toggle::after{content:'';position:absolute;top:2px;left:2px;width:20px;height:20px;background:#fff;border-radius:50%;transition:var(--transition);box-shadow:0 1px 3px rgba(0,0,0,.15)}
.toggle.active::after{left:22px}
.error-msg{color:#ef4444;font-size:.8125rem;margin-bottom:12px;font-weight:500}
.success-msg{color:#10b981;font-size:.8125rem;margin-bottom:12px;font-weight:500}
.output-wrapper{position:relative}
.output-label-row{display:flex;justify-content:space-between;align-items:center;margin-bottom:6px}
.copied-toast{position:fixed;bottom:20px;left:50%;transform:translateX(-50%);background:var(--text);color:var(--card);padding:8px 16px;border-radius:8px;font-size:.8125rem;font-weight:500;opacity:0;transition:opacity 0.2s ease;pointer-events:none;z-index:100}
.copied-toast.show{opacity:1}
@media(max-width:480px){.card{padding:20px}.controls{flex-direction:column;align-items:stretch}}