:root{--bg: #0e1116;--panel: #161b22;--border: #2a3038;--text: #e6edf3;--muted: #8b949e;--accent: #2f81f7;--danger: #f85149;color-scheme:dark}*{box-sizing:border-box}html,body,#root{height:100%;margin:0}body{background:var(--bg);color:var(--text);font:14px/1.5 system-ui,-apple-system,Segoe UI,Roboto,sans-serif}.login-wrap{display:grid;place-items:center;min-height:100%;padding:24px}.login-card{width:100%;max-width:360px;background:var(--panel);border:1px solid var(--border);border-radius:12px;padding:28px;display:flex;flex-direction:column;gap:14px}.login-card .brand{color:var(--accent);font-weight:700;letter-spacing:.5px}.login-card h1{margin:0 0 4px;font-size:20px}.login-card label{display:flex;flex-direction:column;gap:6px;font-size:12px;color:var(--muted)}.login-card input{background:#0d1117;border:1px solid var(--border);border-radius:8px;padding:10px 12px;color:var(--text);font-size:14px}.login-card input:focus{outline:none;border-color:var(--accent)}.login-card button{margin-top:6px;background:var(--accent);color:#fff;border:0;border-radius:8px;padding:11px;font-size:14px;font-weight:600;cursor:pointer}.login-card button:disabled{opacity:.6;cursor:default}.login-card .err{color:var(--danger);font-size:13px}.login-card .hint{color:var(--muted);font-size:11px;margin:2px 0 0;text-align:center}.trade-shell{display:flex;flex-direction:column;height:100%}.topbar{display:flex;align-items:center;gap:12px;padding:8px 14px;background:var(--panel);border-bottom:1px solid var(--border)}.topbar .brand{color:var(--accent);font-weight:700}.topbar .spacer{flex:1}.acct-select{background:#0d1117;color:var(--text);border:1px solid var(--border);border-radius:8px;padding:7px 10px;font-size:13px}.logout-btn{background:transparent;color:var(--muted);border:1px solid var(--border);border-radius:8px;padding:7px 12px;cursor:pointer;font-size:13px}.logout-btn:hover{color:var(--text);border-color:var(--muted)}.webtrade-frame{flex:1;width:100%;border:0}.ghost-btn{background:transparent;color:var(--muted);border:1px solid var(--border);border-radius:8px;padding:7px 12px;cursor:pointer;font-size:13px}.ghost-btn:hover{color:var(--text);border-color:var(--muted)}.modal-backdrop{position:fixed;top:0;right:0;bottom:0;left:0;background:#0000008c;display:grid;place-items:center;z-index:50}.modal-card{width:100%;max-width:360px;background:var(--panel);border:1px solid var(--border);border-radius:12px;padding:24px;display:flex;flex-direction:column;gap:12px}.modal-card h2{margin:0 0 4px;font-size:18px}.modal-card label{display:flex;flex-direction:column;gap:6px;font-size:12px;color:var(--muted)}.modal-card input{background:#0d1117;border:1px solid var(--border);border-radius:8px;padding:10px 12px;color:var(--text);font-size:14px}.modal-card input:focus{outline:none;border-color:var(--accent)}.modal-actions{display:flex;gap:8px;justify-content:flex-end;margin-top:4px}.modal-card button{background:var(--accent);color:#fff;border:0;border-radius:8px;padding:10px 14px;font-size:14px;font-weight:600;cursor:pointer}.modal-card button.ghost{background:transparent;color:var(--muted);border:1px solid var(--border)}.modal-card button:disabled{opacity:.6;cursor:default}.modal-card .err{color:var(--danger);font-size:13px}.modal-card .ok{color:#3fb950;font-size:14px}.boot-screen{min-height:100vh;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:16px;color:#6b7280;font-size:14px}.boot-spinner{width:28px;height:28px;border:3px solid #e5e7eb;border-top-color:#0f766e;border-radius:50%;animation:boot-spin .8s linear infinite}@keyframes boot-spin{to{transform:rotate(360deg)}}.support-banner{background:#b91c1c;color:#fff;padding:8px 16px;font-size:13px;font-weight:600;text-align:center;line-height:1.4}