:root{--bg-base: #0b0e14;--bg-surface: #10141d;--bg-elevated: #151a24;--bg-panel: #0e121a;--bg-hover: #1b2130;--bg-active: #222a3a;--border-subtle: #1c2330;--border-default: #28303f;--border-strong: #3a4557;--text-primary: #e6ebf2;--text-secondary: #9aa7b8;--text-tertiary: #6b7688;--text-muted: #4c566a;--accent: #61dafb;--accent-hover: #8be6ff;--accent-dim: #2b8ba3;--status-good: #4ade80;--status-warn: #fbbf24;--status-bad: #f87171;--status-info: #61dafb;--font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "Inter", Helvetica, Arial, sans-serif;--font-mono: "SF Mono", "Fira Code", "Cascadia Code", "Consolas", monospace;--radius-sm: 5px;--radius-md: 8px;--radius-lg: 12px;--transition: .15s ease;--editor-width: 50%}*{box-sizing:border-box}html,body{margin:0;height:100%}body{background:var(--bg-base);color:var(--text-primary);font-family:var(--font-sans);font-size:14px;-webkit-font-smoothing:antialiased}body.resizing{cursor:col-resize;user-select:none}a{color:var(--accent);text-decoration:none}a:hover{color:var(--accent-hover);text-decoration:underline}code{font-family:var(--font-mono);font-size:.85em;background:var(--bg-elevated);border:1px solid var(--border-subtle);border-radius:4px;padding:.05em .35em}#app{min-height:100vh;display:flex;flex-direction:column}.topbar{flex-shrink:0;display:flex;align-items:center;gap:20px;padding:10px 16px;background:var(--bg-surface);border-bottom:1px solid var(--border-subtle)}.brand{display:inline-flex;align-items:center;gap:9px}.brand:hover{text-decoration:none}.brand-mark{width:26px;height:26px}.brand-name{font-weight:650;letter-spacing:-.01em;color:var(--text-primary);font-size:15px}.topnav{display:flex;align-items:center;gap:2px;margin-left:auto;flex-wrap:wrap}.nav-btn{background:transparent;border:1px solid transparent;color:var(--text-secondary);font:inherit;font-size:13px;padding:6px 10px;border-radius:var(--radius-sm);cursor:pointer;transition:var(--transition)}.nav-btn:hover{background:var(--bg-hover);color:var(--text-primary)}.nav-sep{width:1px;height:18px;background:var(--border-default);margin:0 6px}.trust-banner{flex-shrink:0;display:flex;align-items:center;gap:10px;padding:7px 16px;font-size:12.5px;color:var(--text-secondary);background:linear-gradient(90deg,rgba(97,218,251,.07),transparent);border-bottom:1px solid var(--border-subtle)}.trust-dot{width:8px;height:8px;border-radius:50%;background:var(--status-good);box-shadow:0 0 8px var(--status-good)}.trust-more{background:transparent;border:none;color:var(--accent);cursor:pointer;font:inherit;text-decoration:underline;padding:0}.trust-x{margin-left:auto;background:transparent;border:none;color:var(--text-tertiary);font-size:18px;line-height:1;cursor:pointer;padding:0 4px}.trust-x:hover{color:var(--text-primary)}.main-content{flex:1 0 auto;display:flex;min-height:0}.workspace{flex:1;display:flex;min-height:0;min-width:0}.pane{display:flex;flex-direction:column;min-width:0;min-height:0}.editor-pane{width:var(--editor-width)}.preview-pane{flex:1;border-left:0}.pane-head{flex-shrink:0;display:flex;align-items:center;gap:10px;padding:8px 12px;background:var(--bg-surface);border-bottom:1px solid var(--border-subtle);font-size:12px}.pane-title{font-weight:600;color:var(--text-primary);text-transform:uppercase;letter-spacing:.05em;font-size:11px}.pane-note{color:var(--text-tertiary);font-size:11.5px}.pane-spacer{flex:1}.file-badge{font-family:var(--font-mono);font-size:11px;color:var(--accent);background:#61dafb1a;border:1px solid var(--accent-dim);padding:1px 7px;border-radius:20px}.status{font-family:var(--font-mono);font-size:11.5px;color:var(--text-tertiary);padding:2px 8px;border-radius:20px;border:1px solid var(--border-subtle)}.status[data-kind=busy]{color:var(--status-warn);border-color:#fbbf244d}.status[data-kind=ok]{color:var(--status-good);border-color:#4ade804d}.status[data-kind=err]{color:var(--status-bad);border-color:#f8717159}.cdn-toggle{display:inline-flex;align-items:center;gap:6px;color:var(--text-secondary);cursor:pointer;font-size:12px}.cdn-toggle input{accent-color:var(--accent);cursor:pointer}.icon-btn{font-family:var(--font-mono);font-size:11.5px;background:var(--bg-elevated);border:1px solid var(--border-default);color:var(--text-secondary);padding:3px 9px;border-radius:var(--radius-sm);cursor:pointer;transition:var(--transition)}.icon-btn:hover{background:var(--bg-hover);color:var(--text-primary);border-color:var(--border-strong)}.editor-host{flex:1;min-height:0;overflow:hidden;background:#282c34}.editor-host .cm-editor{height:100%}.editor-host .cm-editor.cm-focused{outline:none}.splitter{flex:0 0 6px;cursor:col-resize;background:var(--border-subtle);position:relative;transition:background var(--transition)}.splitter:hover,.splitter:focus-visible{background:var(--accent-dim);outline:none}.splitter:after{content:"";position:absolute;inset:0 -3px}.preview-host{flex:1;min-height:0;position:relative;background:#fff}.preview-frame{width:100%;height:100%;border:0;background:#fff;display:block}.preview-overlay{position:absolute;inset:0;overflow:auto;background:var(--bg-panel);padding:20px}.preview-error{max-width:720px}.err-badge{display:inline-block;font-weight:600;color:var(--status-bad);background:#f871711a;border:1px solid rgba(248,113,113,.35);padding:6px 12px;border-radius:var(--radius-sm);margin-bottom:12px}.err-line{color:var(--text-tertiary);font-weight:400;margin-left:6px}.err-detail{font-family:var(--font-mono);font-size:12.5px;line-height:1.6;color:var(--text-secondary);white-space:pre-wrap;word-break:break-word;background:var(--bg-base);border:1px solid var(--border-default);border-radius:var(--radius-sm);padding:14px;margin:0}.event-drawer{position:fixed;top:0;right:0;bottom:0;width:min(440px,92vw);background:var(--bg-surface);border-left:1px solid var(--border-default);transform:translate(100%);transition:transform .22s ease;z-index:60;display:flex;flex-direction:column;box-shadow:-12px 0 40px #0006}.event-drawer.open{transform:translate(0)}.drawer-head{display:flex;align-items:center;justify-content:space-between;padding:12px 14px;border-bottom:1px solid var(--border-subtle);flex-shrink:0}.drawer-title{font-weight:600;font-size:13px}.drawer-controls{display:flex;align-items:center;gap:12px}.count{color:var(--text-tertiary);font-size:12px}.count strong{color:var(--text-primary)}.drawer-close{background:transparent;border:none;color:var(--text-tertiary);font-size:22px;line-height:1;cursor:pointer;padding:0 4px}.drawer-close:hover{color:var(--text-primary)}.drawer-filters{display:flex;flex-wrap:wrap;gap:5px;padding:10px 14px;border-bottom:1px solid var(--border-subtle);flex-shrink:0}.filter-pill{font-family:var(--font-mono);font-size:10.5px;text-transform:uppercase;letter-spacing:.04em;background:var(--bg-elevated);border:1px solid var(--border-default);color:var(--text-tertiary);padding:3px 9px;border-radius:20px;cursor:pointer;transition:var(--transition)}.filter-pill.on{color:var(--accent);border-color:var(--accent-dim);background:#61dafb14}.clear-pill{margin-left:auto}.drawer-list{flex:1;overflow-y:auto;padding:8px 0;font-family:var(--font-mono);font-size:11.5px}.event{display:grid;grid-template-columns:auto auto 1fr;gap:8px;align-items:baseline;padding:3px 14px;border-left:2px solid transparent}.event[data-level=ok]{border-left-color:var(--status-good)}.event[data-level=warn]{border-left-color:var(--status-warn)}.event[data-level=err]{border-left-color:var(--status-bad)}.event .ts{color:var(--text-muted)}.event .cat{color:var(--accent-dim);text-transform:uppercase;font-size:10px}.event .msg{color:var(--text-secondary);grid-column:1 / -1}.event .meta{grid-column:1 / -1;color:var(--text-muted);font-size:10.5px}.event .meta .k{color:var(--text-tertiary)}.event .meta .v{color:var(--text-secondary)}.site-footer{flex-shrink:0;padding:12px 16px;text-align:center;font-size:12px;color:var(--text-tertiary);background:var(--bg-surface);border-top:1px solid var(--border-subtle)}.drop-overlay{position:fixed;inset:0;z-index:100;background:#0b0e14e6;backdrop-filter:blur(3px);display:flex;align-items:center;justify-content:center;padding:24px}.drop-overlay[hidden]{display:none}.drop-inner{border:2px dashed var(--accent);border-radius:var(--radius-lg);padding:48px 64px;text-align:center;background:#61dafb0d}.drop-icon{font-size:42px;color:var(--accent);margin-bottom:10px}.drop-text{color:var(--text-secondary);font-size:15px}.drop-text strong{color:var(--accent);font-family:var(--font-mono)}.samples-menu{position:fixed;z-index:80;min-width:200px;background:var(--bg-elevated);border:1px solid var(--border-default);border-radius:var(--radius-md);padding:5px;box-shadow:0 12px 32px #00000080}.samples-item{display:block;width:100%;text-align:left;font:inherit;font-size:13px;background:transparent;border:none;color:var(--text-secondary);padding:8px 10px;border-radius:var(--radius-sm);cursor:pointer}.samples-item:hover{background:var(--bg-hover);color:var(--text-primary)}.modal-scrim{position:fixed;inset:0;z-index:120;display:flex;align-items:flex-start;justify-content:center;background:#04060ab8;backdrop-filter:blur(4px);padding:6vh 20px;overflow-y:auto}.modal{width:min(640px,100%);background:var(--bg-surface);border:1px solid var(--border-default);border-radius:var(--radius-lg);box-shadow:0 24px 60px #0000008c}.modal-head{display:flex;align-items:center;justify-content:space-between;padding:16px 20px;border-bottom:1px solid var(--border-subtle)}.modal-head h2{margin:0;font-size:16px;font-weight:650}.modal-close{background:transparent;border:none;color:var(--text-tertiary);font-size:24px;line-height:1;cursor:pointer;padding:0 4px}.modal-close:hover{color:var(--text-primary)}.modal-body{padding:18px 20px 22px;font-size:13.5px;line-height:1.65;color:var(--text-secondary)}.modal-body h3{color:var(--text-primary);font-size:13px;text-transform:uppercase;letter-spacing:.05em;margin:20px 0 8px}.modal-body p{margin:0 0 12px}.modal-body ul,.modal-body ol{margin:0 0 12px;padding-left:20px}.modal-body li{margin-bottom:7px}.modal-body .steps li{margin-bottom:11px}.modal-body .good li::marker{color:var(--status-good)}.modal-body .bad li::marker{color:var(--status-warn)}.modal-body .trust li::marker{color:var(--accent)}.modal-body .plain,.modal-body .plain li{list-style:none;padding-left:0}.modal-body .muted{color:var(--text-tertiary);font-size:12.5px}.modal-body strong{color:var(--text-primary)}.glossary-link{color:var(--accent);border-bottom:1px dotted var(--accent-dim);cursor:help}.glossary-tooltip{position:fixed;z-index:200;max-width:300px;display:none;background:var(--bg-elevated);border:1px solid var(--border-strong);border-radius:var(--radius-md);padding:10px 12px;font-size:12.5px;line-height:1.5;color:var(--text-secondary);box-shadow:0 12px 28px #00000080}.glossary-tooltip.show{display:block}@media(max-width:760px){.topnav{gap:0}.nav-btn{padding:6px 7px}.nav-sep{display:none}.workspace{flex-direction:column}.editor-pane{width:100%!important;height:45vh}.preview-pane{flex:1;min-height:45vh;border-top:1px solid var(--border-default)}.splitter,.pane-note{display:none}}