#__next,body,html{height:100%}body{margin:0;font-family:system-ui,-apple-system,Segoe UI,Roboto,Helvetica,Arial,sans-serif}*{box-sizing:border-box}:root{--primary:#ff6b35;--primary-dark:#e55a2e;--secondary:#6c5ce7;--bg:#111827;--bg-card:#1f2937;--border:#374151;--text:#f9fafb;--text-muted:#9ca3af;--success:#10b981;--tip:#f59e0b}[data-theme=light]{--bg:#fff;--bg-card:#fff;--border:#e5e7eb;--text:#1f2937;--text-muted:#6b7280}body{background:var(--bg);color:var(--text)}.card{border:1px solid var(--border);border-radius:12px}.btn,.card{background:var(--bg-card)}.btn{border:1px solid var(--border);border-radius:8px;padding:8px 12px;color:var(--text);cursor:pointer;font-size:14px;transition:all .2s}.btn:hover{background:var(--border)}.btn.primary{background:var(--primary);color:#fff;border-color:var(--primary)}.btn.primary:hover{background:var(--primary-dark)}.input{border:1px solid var(--border);border-radius:8px;padding:8px 12px;background:var(--bg-card);color:var(--text);font-size:14px}.input:focus{outline:none;border-color:var(--primary)}.badge{background:var(--primary);color:#fff;padding:2px 8px;border-radius:6px;font-size:12px;font-weight:600}.progress{height:8px;border-radius:999px;background:var(--border);overflow:hidden}.progress>div{height:100%;background:var(--success);width:0;transition:width .25s}.chat{display:flex;flex-direction:column;height:70vh}.chat-feed{flex:1 1;overflow:auto;padding:12px;background:var(--bg);border-radius:8px;margin-bottom:12px}.chat-msg{margin-bottom:6px;font-size:14px;line-height:1.4}.chat-msg b{color:var(--primary);font-weight:600}.chat-tip{background:rgba(245,158,11,.1);color:var(--tip);padding:6px 8px;border-radius:8px;font-weight:500}.typing{color:var(--text-muted);font-size:12px;font-style:italic}.theme-toggle{position:fixed;top:20px;right:20px;z-index:1000;background:var(--bg-card);border:1px solid var(--border);border-radius:50%;width:44px;height:44px;display:flex;align-items:center;justify-content:center;cursor:pointer;font-size:18px}@media (max-width:768px){.chat{height:50vh}.card{margin:8px}}