:root{color-scheme:dark;font-family:ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;color:#e8edf7;background:#161618;--bg: #161618;--panel: #1b1b1f;--panel-raised: #202127;--line: rgba(255, 255, 255, .085);--line-strong: rgba(255, 255, 255, .14);--muted: #8993a5;--text: #e8edf7;--brand: #2ad6bf;--brand-strong: #00bfa6;--danger: #ff7a8b;--mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace}*{box-sizing:border-box}body{margin:0;min-height:100vh;background:var(--bg)}button,input{font:inherit}a{color:var(--brand);text-decoration:none}a:hover{text-decoration:underline}code{font-family:var(--mono);font-size:.9em}.app-shell{min-height:100vh;background:radial-gradient(circle at 68% -10%,rgba(102,126,234,.13),transparent 32rem),radial-gradient(circle at 5% 25%,rgba(0,191,166,.07),transparent 25rem),var(--bg)}.topbar{position:sticky;top:0;z-index:10;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:12px 24px;border-bottom:1px solid var(--line);background:#161618d9;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px)}.brand{display:flex;align-items:center;gap:10px;color:var(--text);font-size:1.05rem}.brand:hover{text-decoration:none}.brand strong{color:var(--brand);font-weight:700}.topbar-links{display:flex;gap:20px;font-size:.92rem}.topbar-links a{color:var(--muted)}.topbar-links a:hover{color:var(--text);text-decoration:none}.content{max-width:1320px;margin:0 auto;padding:32px 24px 64px}.intro h1{margin:0 0 8px;font-size:clamp(1.6rem,3vw,2.2rem);letter-spacing:-.02em}.intro p{margin:0;max-width:680px;color:var(--muted);line-height:1.6}.tabs{display:flex;flex-wrap:wrap;gap:8px;margin:28px 0 12px}.tab{padding:8px 16px;border:1px solid var(--line-strong);border-radius:999px;background:transparent;color:var(--muted);cursor:pointer}.tab:hover{color:var(--text);border-color:var(--brand-strong)}.tab.is-active{background:#00bfa624;border-color:var(--brand-strong);color:var(--brand)}.summary{margin:0 0 16px;color:var(--muted)}.workspace{display:grid;grid-template-columns:minmax(0,1.35fr) minmax(0,1fr);gap:16px;align-items:start}@media (max-width: 960px){.workspace{grid-template-columns:minmax(0,1fr)}}.panel{display:flex;flex-direction:column;min-width:0;border:1px solid var(--line);border-radius:12px;background:var(--panel);overflow:hidden}.panel-header{display:flex;align-items:center;justify-content:space-between;gap:12px;min-height:48px;padding:8px 14px;border-bottom:1px solid var(--line);background:var(--panel-raised);color:var(--muted);font-size:.88rem}.file-name{font-family:var(--mono);color:var(--text)}.code{margin:0;padding:14px 0;max-height:70vh;overflow:auto;font-family:var(--mono);font-size:.82rem;line-height:1.6;color:#d4dae6}.code code{font-size:inherit}.run-button{padding:6px 14px;border:0;border-radius:8px;background:var(--brand-strong);color:#06201c;font-weight:600;cursor:pointer}.run-button:hover:not(:disabled){background:var(--brand)}.run-button:disabled{opacity:.6;cursor:progress}.output{display:flex;flex-direction:column;gap:10px;min-height:240px;max-height:70vh;padding:14px;overflow:auto}.log-entry{padding-left:12px;border-left:2px solid var(--brand-strong)}.log-message{font-size:.9rem}.log-entry pre{margin:6px 0 0;padding:8px 10px;border-radius:6px;background:#00000040;font-family:var(--mono);font-size:.78rem;white-space:pre-wrap;word-break:break-word;color:#c3cad8}.muted{margin:0;color:var(--muted)}.error{margin:0;color:var(--danger)}.preview{padding:18px}.demo-form{display:flex;gap:8px}.demo-form input{flex:1;min-width:0;padding:9px 12px;border:1px solid var(--line-strong);border-radius:8px;background:var(--bg);color:var(--text)}.demo-form input:focus{outline:2px solid var(--brand-strong);outline-offset:-1px}.demo-form button{padding:9px 16px;border:0;border-radius:8px;background:var(--brand-strong);color:#06201c;font-weight:600;cursor:pointer}.demo-list{margin:16px 0 0;padding:0;list-style:none}.demo-list li{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:10px 4px;border-bottom:1px solid var(--line)}.demo-list label{display:flex;align-items:center;gap:10px;cursor:pointer}.demo-list input[type=checkbox]{accent-color:var(--brand-strong);width:16px;height:16px}.demo-list li.is-done span{color:var(--muted);text-decoration:line-through}.demo-list small{display:block;margin-top:2px;color:var(--muted);font-size:.75rem}.demo-list button{border:0;background:transparent;color:var(--muted);cursor:pointer}.demo-list button:hover{color:var(--danger)}.demo-footer{margin:14px 0 0;color:var(--muted);font-size:.88rem}.link-button{padding:0;border:0;background:none;color:var(--brand);cursor:pointer}.workspace.is-wide{grid-template-columns:minmax(0,1fr)}.workspace.is-wide>.panel:last-child{order:-1}.workspace.is-wide .code{max-height:60vh}.grid-toolbar{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:12px}.grid-toolbar input[type=search],.grid-demo select{padding:8px 10px;border:1px solid var(--line-strong);border-radius:8px;background:var(--bg);color:var(--text)}.grid-toolbar input[type=search]{flex:1 1 220px;min-width:0}.grid-toolbar input:focus,.grid-demo select:focus{outline:2px solid var(--brand-strong);outline-offset:-1px}.grid-toolbar button{padding:8px 14px;border:1px solid var(--line-strong);border-radius:8px;background:transparent;color:var(--text);cursor:pointer}.grid-toolbar button:hover{border-color:var(--brand-strong)}.grid-toolbar .toggle.is-on{background:#00bfa629;border-color:var(--brand-strong);color:var(--brand)}.grid-scroll{position:relative;overflow-x:auto;border:1px solid var(--line);border-radius:10px}.grid{width:100%;border-collapse:collapse;font-size:.88rem;font-variant-numeric:tabular-nums}.grid th{padding:0;background:var(--panel-raised);border-bottom:1px solid var(--line-strong);text-align:left;white-space:nowrap}.grid th button{display:flex;align-items:center;gap:6px;width:100%;padding:10px 12px;border:0;background:transparent;color:var(--muted);font-size:.76rem;font-weight:600;letter-spacing:.04em;text-transform:uppercase;cursor:pointer}.grid th.numeric button{justify-content:flex-end}.grid th button:hover{color:var(--text)}.grid th[aria-sort=ascending] button,.grid th[aria-sort=descending] button{color:var(--brand)}.grid th button:focus-visible{outline:2px solid var(--brand-strong);outline-offset:-2px}.sort-indicator{display:inline-block;width:.9em;font-size:.7em}.grid td{padding:7px 12px;border-bottom:1px solid var(--line);white-space:nowrap}.grid tbody tr:last-child td{border-bottom:0}.grid tbody tr:hover td{background:#ffffff06}.grid .numeric{text-align:right}.grid tr.is-changed td{animation:row-flash 1s ease-out}@keyframes row-flash{0%{background:#00bfa64d}to{background:transparent}}.grid-empty{padding:28px!important;text-align:center!important;color:var(--muted)}.pill{display:inline-block;padding:2px 8px;border-radius:999px;background:#667eea24;color:#aab8ff;font-size:.76rem}.stepper{display:inline-flex;align-items:center;gap:6px}.stepper>span{min-width:2ch;text-align:right}.stepper button,.row-delete{width:22px;height:22px;padding:0;border:1px solid var(--line-strong);border-radius:6px;background:transparent;color:var(--muted);line-height:1;cursor:pointer}.stepper button:hover{border-color:var(--brand-strong);color:var(--text)}.row-delete{border-color:transparent}.row-delete:hover{color:var(--danger)}.low-stock{color:#ffc66b;font-weight:600}.muted-cell{color:var(--muted)}.grid-footer{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:10px;margin-top:12px;color:var(--muted);font-size:.86rem}.live-dot{margin-left:12px;color:var(--brand)}.pager{display:flex;flex-wrap:wrap;align-items:center;gap:6px}.pager button{min-width:30px;height:30px;border:1px solid var(--line-strong);border-radius:8px;background:transparent;color:var(--text);cursor:pointer}.pager button:hover:not(:disabled){border-color:var(--brand-strong)}.pager button:disabled{opacity:.35;cursor:default}.page-label{padding:0 6px;color:var(--text)}.activity{margin:12px 0 0;padding:10px 12px;border-radius:8px;background:#00000040;list-style:none;font-family:var(--mono);font-size:.76rem;color:#c3cad8}.activity li+li{margin-top:4px;opacity:.7}.visually-hidden{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}.local{margin-top:40px;padding:24px;border:1px solid var(--line);border-radius:12px;background:var(--panel)}.local h2{margin:0 0 8px;font-size:1.2rem}.local p{color:var(--muted);line-height:1.6}.local .code{padding:14px 16px;border-radius:8px;background:#00000040;white-space:pre}.editor{height:520px;min-height:320px}.editor>.muted{padding:16px}.workspace.is-wide .editor{height:440px}.toolbar{display:flex;align-items:center;gap:10px}.tool-button{padding:4px 10px;border:1px solid var(--line-strong);border-radius:6px;background:transparent;color:var(--text);font:inherit;font-size:.85rem;cursor:pointer}.tool-button:hover:not(:disabled){border-color:var(--brand-strong);color:var(--brand)}.tool-button:disabled{opacity:.4;cursor:default}