.yv-app{display:flex;flex-direction:column;height:100%;background:var(--surface);border-radius:var(--radius);border:1px solid var(--border);overflow:hidden;}.yv-header{display:flex;align-items:center;justify-content:space-between;padding:12px 20px;background:var(--surface);border-bottom:1px solid var(--border);gap:12px;flex-wrap:wrap;}.yv-header-left{display:flex;align-items:center;gap:8px;}.yv-header-right{display:flex;align-items:center;gap:8px;}.yv-title{font-size:15px;font-weight:700;color:var(--text);}.yv-main{display:grid;grid-template-columns:1fr 1fr;gap:0;flex:1;overflow:hidden;}.yv-panel{display:flex;flex-direction:column;overflow:hidden;min-height:0;}.yv-panel:first-child{border-right:1px solid var(--border);}.yv-panel-header{display:flex;align-items:center;justify-content:space-between;padding:8px 16px;border-bottom:1px solid var(--border);background:var(--surface-2);}.yv-panel-title{font-size:12px;font-weight:600;text-transform:uppercase;letter-spacing:0.5px;color:var(--text-muted);}.yv-panel-actions{display:flex;gap:6px;}.yv-textarea{width:100%;flex:1;background:var(--bg);color:var(--text);border:none;padding:16px;font-family:var(--font-mono);font-size:13px;line-height:1.7;resize:none;outline:none;tab-size:2;min-height:0;}.yv-textarea::placeholder{color:var(--text-muted);opacity:0.5;}.yv-output-wrap{flex:1;overflow:auto;background:var(--bg);}pre.yv-output{padding:16px;font-family:var(--font-mono);font-size:13px;line-height:1.7;white-space:pre-wrap;word-break:break-all;color:var(--text);min-height:100%;margin:0;}.yv-status-bar{padding:6px 16px;border-top:1px solid var(--border);background:var(--surface-2);display:flex;align-items:center;justify-content:space-between;font-size:12px;color:var(--text-muted);}.yv-error{color:var(--red);font-style:italic;}.yv-valid{color:var(--green);}.yv-info-card{padding:12px 16px;border-radius:var(--radius-sm);margin-bottom:12px;font-size:13px;}.yv-info-card.success{background:rgba(0,255,170,0.08);border:1px solid rgba(0,255,170,0.2);color:var(--green);}.yv-info-card.error{background:rgba(255,51,102,0.08);border:1px solid rgba(255,51,102,0.2);color:var(--red);}.yv-empty-state{display:flex;flex-direction:column;align-items:center;justify-content:center;height:100%;color:var(--text-muted);gap:8px;padding:40px;text-align:center;}.yv-empty-state svg{opacity:0.3;margin-bottom:8px;}.yv-empty-state p{font-size:14px;}.yv-empty-state .yv-hint{font-size:12px;opacity:0.6;}@media (max-width:768px){.yv-main{grid-template-columns:1fr;grid-template-rows:1fr 1fr;}.yv-panel:first-child{border-right:none;border-bottom:1px solid var(--border);}}