:root{--bg: #0f1115;--panel: #171a21;--panel-alt: #1f232c;--border: #2a2f3a;--text: #e6e8ec;--text-dim: #9aa1ae;--accent: #4f8cff;--accent-dim: #2c4a86;--green: #37b673;--red: #e5534b;--amber: #e2a33b;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Helvetica,Arial,sans-serif}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);overflow-x:hidden}h1,h2,h3{line-height:1.25}h2{font-size:19px;margin:0 0 6px}h3{font-size:14px;margin:18px 0 8px}a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible,[tabindex]:focus-visible{outline:2px solid var(--accent);outline-offset:2px}#root{min-height:100vh;display:flex;flex-direction:column}.app-header{display:flex;align-items:center;justify-content:space-between;padding:12px 20px;border-bottom:1px solid var(--border);background:var(--panel);flex-wrap:wrap;gap:10px}.app-title{font-size:16px;font-weight:600;display:flex;align-items:center;gap:8px}.app-title 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span{color:var(--green)}.validation-checks li.failed{color:var(--text)}.validation-checks li.failed span{color:var(--red)}.thinking-indicator{display:flex;align-items:center;gap:10px;padding:10px 14px;margin-bottom:16px;background:var(--panel-alt);border:1px solid var(--border);border-radius:8px;font-size:13px;color:var(--text-dim)}.thinking-pulse{width:10px;height:10px;border-radius:50%;background:var(--accent);flex-shrink:0;animation:thinking-pulse-anim 1.4s ease-in-out infinite}@keyframes thinking-pulse-anim{0%,to{opacity:.35;transform:scale(.85)}50%{opacity:1;transform:scale(1)}}.thinking-text{flex:1;animation:thinking-fade-in .35s ease}@keyframes thinking-fade-in{0%{opacity:0;transform:translateY(2px)}to{opacity:1;transform:translateY(0)}}.thinking-cancel{background:transparent;border:1px solid var(--border);color:var(--text-dim);border-radius:6px;padding:3px 10px;font-size:12px;cursor:pointer;flex-shrink:0}.thinking-cancel:hover{border-color:var(--red);color:var(--red)}@media 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