:root{--bg: #0f1115;--panel: #161a22;--panel-2: #1d222c;--border: #262c38;--text: #e6e9ef;--muted: #8b94a7;--accent: #4f8cff;--accent-2: #6ad7ff;--danger: #ff6b6b;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;color-scheme:dark}*{box-sizing:border-box}html,body,#root{height:100%;margin:0;background:var(--bg);color:var(--text)}button{font:inherit;color:inherit;background:var(--panel-2);border:1px solid var(--border);padding:6px 12px;border-radius:6px;cursor:pointer}button:hover{background:#242a36}button.primary{background:var(--accent);border-color:var(--accent);color:#fff}button.primary:hover{background:#3a76e5}button.danger{background:transparent;border-color:var(--danger);color:var(--danger)}button.ghost{background:transparent}input,select,textarea{font:inherit;color:inherit;background:var(--panel-2);border:1px solid var(--border);padding:6px 8px;border-radius:6px;width:100%}label{display:block;font-size:12px;color:var(--muted);margin-bottom:4px}.app{display:grid;grid-template-columns:280px 1fr;height:100vh}.sidebar{background:var(--panel);border-right:1px solid var(--border);display:flex;flex-direction:column;overflow:hidden}.sidebar header{padding:14px 16px;border-bottom:1px solid var(--border);display:flex;align-items:center;justify-content:space-between}.sidebar header h1{margin:0;font-size:14px;letter-spacing:.04em;text-transform:uppercase;color:var(--muted)}.sidebar ul{list-style:none;padding:8px;margin:0;overflow-y:auto;flex:1}.sidebar li{padding:10px 12px;border-radius:6px;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:8px}.sidebar li:hover{background:var(--panel-2)}.sidebar li.active{background:var(--panel-2);border:1px solid var(--border)}.sidebar li .title{font-size:13px;font-weight:500}.sidebar li .meta{font-size:11px;color:var(--muted)}.sidebar .empty{padding:20px;color:var(--muted);font-size:13px;text-align:center}.sidebar li .drag-handle{cursor:grab;color:var(--muted);font-size:14px;line-height:1;padding:0 4px;-webkit-user-select:none;user-select:none;letter-spacing:-2px}.sidebar li .drag-handle:active{cursor:grabbing}.sidebar li.dragging{opacity:.5}.sidebar li.drop-target{box-shadow:inset 0 2px 0 0 var(--accent, #4f8cff)}.main{display:flex;flex-direction:column;overflow:hidden}.main>header{padding:14px 20px;border-bottom:1px solid var(--border);display:flex;align-items:center;justify-content:space-between}.main>header h2{margin:0;font-size:16px}.main>header .actions{display:flex;gap:8px}.main .content{flex:1;overflow-y:auto;padding:20px}.placeholder{display:flex;flex-direction:column;align-items:center;justify-content:center;height:100%;color:var(--muted);gap:12px}.chart-card,.table-card,.builder-card{background:var(--panel);border:1px solid var(--border);border-radius:8px;padding:16px;margin-bottom:16px}.chart-card h3,.table-card h3,.builder-card h3{margin:0 0 12px;font-size:13px;color:var(--muted);text-transform:uppercase;letter-spacing:.04em}table{width:100%;border-collapse:collapse;font-size:13px}th,td{text-align:left;padding:8px 10px;border-bottom:1px solid var(--border)}th{color:var(--muted);font-weight:500;font-size:11px;text-transform:uppercase;letter-spacing:.04em}.builder-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}.builder-row{display:flex;gap:8px;align-items:end;margin-top:8px}.builder-row .grow{flex:1}.json-filter{display:grid;grid-template-columns:1fr 120px 1fr auto;gap:8px;align-items:end;margin-bottom:8px}.modal-backdrop{position:fixed;top:0;right:0;bottom:0;left:0;background:#0009;display:flex;align-items:center;justify-content:center;z-index:100}.modal{background:var(--panel);border:1px solid var(--border);border-radius:10px;width:min(720px,92vw);max-height:90vh;overflow:auto;padding:20px}.modal header{display:flex;justify-content:space-between;align-items:center;margin-bottom:16px}.modal header h2{margin:0;font-size:18px}.modal footer{display:flex;gap:8px;justify-content:flex-end;margin-top:16px}.error{color:var(--danger);font-size:13px;margin-top:8px}.muted{color:var(--muted)}.login-screen{height:100vh;display:flex;align-items:center;justify-content:center;background:var(--bg)}.login-card{background:var(--panel);border:1px solid var(--border);border-radius:10px;padding:28px;width:min(360px,90vw);display:flex;flex-direction:column;gap:12px;box-shadow:0 8px 32px #00000059}.login-card h1{margin:0 0 4px;font-size:18px;text-align:center}.login-card label{margin-bottom:0}.login-card input{text-align:center;font-size:15px;padding:10px 12px}.login-card button{margin-top:4px;padding:10px 12px;font-size:14px}.login-card .error{text-align:center;margin-top:0}