:root{--bg:#f7f5f0;--panel:#ffffff;--ink:#202124;--muted:#697077;--line:#dedbd2;--accent:#2f6f63;--accent-strong:#1f574d;--blue:#3b75af;--red:#b94b4b;--shadow:0 10px 30px rgba(32,33,36,0.08)}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;letter-spacing:0}button,input,select,textarea{font:inherit}button{cursor:pointer}.shell{display:grid;grid-template-columns:248px minmax(0,1fr);min-height:100vh}.sidebar{border-right:1px solid var(--line);background:#ebe7dc;padding:22px 16px}.brand{display:flex;align-items:center;gap:12px;margin-bottom:28px}.brand-logo-link{display:block;width:-moz-fit-content;width:fit-content;color:inherit;text-decoration:none}.brand-logo{display:block;width:184px;height:auto;object-fit:contain}.brand-mark{display:grid;place-items:center;width:36px;height:36px;border-radius:8px;background:var(--ink);color:white;font-weight:800}.brand span,.brand strong{display:block}.brand span{color:var(--muted);font-size:13px;margin-top:2px}.nav{display:grid;grid-gap:6px;gap:6px}.nav-link{display:flex;align-items:center;gap:10px;min-height:40px;border-radius:8px;padding:0 10px;color:var(--ink);text-decoration:none}.nav-link:hover{background:rgba(255,255,255,.62)}.main{min-width:0;padding:24px}.page{max-width:1180px;margin:0 auto}.page-header{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:18px}.page-title{margin:0;font-size:24px;line-height:1.2}.page-kicker{margin:6px 0 0;color:var(--muted);font-size:14px}.toolbar{display:flex;align-items:center;gap:10px;flex-wrap:wrap}.button,.icon-button{border:1px solid var(--line);background:var(--panel);color:var(--ink);border-radius:8px;min-height:38px;padding:0 13px;display:inline-flex;align-items:center;justify-content:center;gap:8px}.button.primary{background:var(--accent);color:#fff;border-color:var(--accent)}.button.primary:hover{background:var(--accent-strong)}.button.danger{background:var(--red);color:#fff;border-color:var(--red)}.button.danger:hover{background:#9f3d3d}.icon-button{width:38px;padding:0}.field,.select,.textarea{width:100%;border:1px solid var(--line);background:var(--panel);color:var(--ink);border-radius:8px;min-height:38px;padding:9px 11px}.textarea{min-height:112px;resize:vertical}.label{display:grid;grid-gap:6px;gap:6px;color:var(--muted);font-size:13px}.panel{background:var(--panel);border:1px solid var(--line);border-radius:8px;box-shadow:var(--shadow)}.panel-pad{padding:16px}.grid{display:grid;grid-gap:14px;gap:14px}.two-col{grid-template-columns:minmax(320px,1.4fr) minmax(260px,.6fr)}.list{display:grid;grid-template-columns:minmax(0,1fr);grid-gap:10px;gap:10px}.item{padding:14px;border:1px solid var(--line);background:var(--panel);border-radius:8px}.item-title{display:flex;align-items:center;justify-content:space-between;gap:12px;font-weight:700}.muted{color:var(--muted)}.code{font-family:ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;font-size:12px}.spin{animation:spin .8s linear infinite}.dialog-backdrop{position:fixed;inset:0;z-index:50;display:grid;place-items:center;padding:20px;background:rgba(32,33,36,.28)}.dialog{width:min(420px,100%);grid-template-columns:auto minmax(0,1fr);grid-gap:12px;gap:12px;padding:16px;border:1px solid var(--line);background:var(--panel);box-shadow:0 24px 60px rgba(32,33,36,.22)}.dialog,.dialog-icon{display:grid;border-radius:8px}.dialog-icon{width:34px;height:34px;place-items:center;background:#f6e7e7;color:var(--red)}.dialog-title{margin:0;font-size:16px;line-height:1.3}.dialog-message{margin:6px 0 0;color:var(--muted);font-size:13px;line-height:1.5}.dialog-error{margin-top:10px;color:var(--red);font-size:13px}.dialog-actions{display:flex;justify-content:flex-end;gap:8px;margin-top:16px}@keyframes spin{to{transform:rotate(1turn)}}.chat-layout{display:grid;grid-template-columns:minmax(0,1fr) 320px;grid-gap:16px;gap:16px;height:calc(100vh - 48px)}.chat-panel{display:grid;grid-template-rows:auto minmax(0,1fr) auto;min-height:0}.messages{overflow:auto;padding:16px;display:flex;flex-direction:column;gap:12px}.bubble{max-width:850px;padding:12px 14px;border-radius:8px;border:1px solid var(--line);background:#fbfaf7;white-space:pre-wrap}.bubble.user{align-self:flex-end;background:#e8f0ed;border-color:#c9dcd5}.bubble.assistant{align-self:flex-start}.composer{display:grid;grid-template-columns:minmax(0,1fr) auto auto;grid-gap:10px;gap:10px;border-top:1px solid var(--line);padding:12px}.composer textarea{min-height:44px;max-height:140px}.side-stack{min-height:0;overflow:auto}.data-table{max-width:100%;min-width:0}.table-wrap{max-width:100%;max-height:min(420px,65vh);overflow:auto;border:1px solid var(--line);border-radius:8px;background:var(--panel)}table{width:max-content;min-width:100%;border-collapse:collapse;font-size:13px}td,th{padding:8px 10px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}th{color:var(--muted);font-weight:600;background:var(--panel);position:-webkit-sticky;position:sticky;top:0;z-index:1}.table-cell{max-width:360px;max-height:140px;overflow:auto;white-space:pre-wrap;overflow-wrap:anywhere}.table-cell-heading{max-width:260px;max-height:80px;font-weight:600}.empty-result,.table-meta{margin-top:6px;color:var(--muted);font-size:12px}.empty-result{margin-top:0;padding:10px 12px;border:1px solid var(--line);border-radius:8px;background:var(--panel)}.sql-editor{min-width:0;max-width:100%}.sql-editor-frame{max-width:100%;overflow:hidden;border:1px solid var(--line);border-radius:8px}.sql-editor .cm-editor{max-width:100%}.sql-editor .cm-scroller{overflow:auto}.sql-editor .cm-content,.sql-editor .cm-line{max-width:100%}.metric-card{display:grid;grid-gap:4px;gap:4px;padding:12px;border:1px solid var(--line);border-radius:8px;background:#fbfaf7}.metric-card strong{font-size:22px;line-height:1.15}.progress-track{width:min(420px,100%);height:6px;margin-top:10px;overflow:hidden;border-radius:999px;background:#e8e4d8}.progress-fill{height:100%;border-radius:inherit;background:var(--accent);transition:width .2s ease}.playground-status{display:flex;align-items:center;gap:8px;flex-wrap:wrap;padding:10px 12px;border:1px solid var(--line);border-radius:8px;background:#fbfaf7;color:var(--muted);font-size:13px}.playground-status.afterReveal,.playground-status.benchmark{border-color:#c9dcd5;background:#e8f0ed;color:var(--accent-strong)}.playground-status.revealed{border-color:#e7d6a5;background:#fff7df;color:#7a6124}.round-map{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));grid-gap:6px;gap:6px}.round-pill{min-height:32px;border:1px solid var(--line);border-radius:8px;background:var(--panel);color:var(--muted);font-size:12px}.round-pill.active{outline:2px solid rgba(47,111,99,.28);outline-offset:1px;color:var(--ink)}.round-pill.afterReveal,.round-pill.benchmark{border-color:#c9dcd5;background:#e8f0ed;color:var(--accent-strong)}.round-pill.revealed{border-color:#e7d6a5;background:#fff7df;color:#7a6124}.round-pill.attempted{background:#fbfaf7;color:var(--ink)}@media (max-width:900px){.shell{grid-template-columns:1fr}.sidebar{position:-webkit-sticky;position:sticky;top:0;z-index:10;border-right:0;border-bottom:1px solid var(--line);padding:12px}.brand{margin-bottom:10px}.brand-logo{width:128px}.nav{grid-template-columns:repeat(4,minmax(0,1fr))}.nav-link{justify-content:center}.nav-link span{display:none}.main{padding:14px}.metric-card{padding:10px}.chat-layout,.two-col{grid-template-columns:1fr;height:auto}.chat-panel{min-height:70vh}}