.side-nav{--side-w:208px;position:relative;isolation:isolate;overflow:hidden;width:var(--side-w);height:100%;flex-shrink:0;flex-direction:column;gap:22px;padding:24px 14px 18px;background:var(--color-rail);color:var(--color-rail-ink);border-right:1px solid var(--color-rail-line);transition:width .16s ease,padding .16s ease}@media (min-width:1280px){.side-nav{--side-w:232px}}html.side-collapsed .side-nav{--side-w:72px;padding-inline:12px;gap:18px}@media (prefers-reduced-motion:reduce){.side-nav{transition:none}}.side-nav:before{inset:0;z-index:0;background:radial-gradient(ellipse 225px 235px at 12% 0,var(--color-rail-halo-strong),transparent 75%),radial-gradient(ellipse 210px 300px at 105% 210px,var(--color-rail-halo-soft),transparent 78%)}.side-nav:after,.side-nav:before{content:"";position:absolute;pointer-events:none}.side-nav:after{inset:0 0 0 auto;width:1px;background:linear-gradient(transparent,var(--color-rail-halo-strong) 12%,transparent 48%)}.side-nav>*{position:relative;z-index:1}.side-head{min-height:40px;padding:0 9px;flex-shrink:0}.side-head,.side-logo{display:flex;align-items:center}.side-logo{gap:11px;min-width:0;color:var(--color-rail-ink);font-size:28px;font-weight:500;letter-spacing:-1.1px;line-height:1;white-space:nowrap}.side-logo svg{flex-shrink:0;filter:drop-shadow(0 0 10px color-mix(in srgb,var(--color-rail-brand) 24%,transparent))}.side-logo b,.side-logo svg{color:var(--color-rail-brand)}.side-logo b{font-weight:500}.side-wordmark{overflow:hidden}.side-ai-mark{display:grid;place-items:center;width:30px;height:30px;border-radius:9px;background:#000;color:#fff;font-size:13px;font-weight:700;flex-shrink:0}.side-logo-ai{font-size:20px;letter-spacing:-.5px}html.side-collapsed .side-head{justify-content:center;padding:0}html.side-collapsed .side-wordmark{display:none}.top-bar{align-items:center;gap:12px;min-height:60px;padding:8px 24px;border-bottom:1px solid var(--color-border);background:var(--color-surface);flex-shrink:0}.top-bar-toggle{display:grid;place-items:center;width:30px;height:30px;margin-left:-6px;border-radius:7px;color:var(--color-muted);cursor:pointer;flex-shrink:0;transition:color .14s,background-color .14s}.top-bar-toggle:hover{color:var(--color-ink);background:var(--color-surface-2)}.top-bar-title{min-width:0;flex:1}.top-bar-title h1{font-size:13.5px;font-weight:500;color:var(--color-ink)}.top-bar-title h1,.top-bar-title p{line-height:1.35;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.top-bar-title p{margin-top:2px;font-size:12px;color:var(--color-muted)}.top-bar-actions{display:flex;align-items:center;gap:8px;flex-shrink:0;max-width:70%}.top-bar-date{font-size:11.5px;color:var(--color-muted);font-variant-numeric:tabular-nums;white-space:nowrap}.side-scroll{flex:1 1 auto;min-height:0;overflow-y:auto;overflow-x:hidden;scrollbar-width:none;display:flex;flex-direction:column;margin:0 -4px;padding:0 4px}.side-scroll::-webkit-scrollbar{display:none}.side-group{display:flex;flex-direction:column;gap:4px;flex-shrink:0}.side-sep{height:1px;margin:12px 13px;background:linear-gradient(90deg,var(--color-rail-line),transparent);flex-shrink:0}html.side-collapsed .side-sep{margin:10px 12px}.side-item{position:relative;display:flex;align-items:center;gap:13px;width:100%;min-height:42px;padding:10px 13px;border-radius:9px;font-size:14px;line-height:1.35;color:var(--color-rail-muted);text-align:left;white-space:nowrap;flex-shrink:0;transition:color .14s,background-color .14s,box-shadow .14s}.side-item:hover{color:var(--color-rail-ink);background:var(--color-rail-hover)}.side-item[aria-current=page]{color:var(--color-rail-accent);background:linear-gradient(115deg,var(--color-rail-soft),color-mix(in srgb,var(--color-rail-soft) 55%,transparent));box-shadow:inset 0 1px 0 color-mix(in srgb,var(--color-rail-accent) 19%,transparent),0 6px 24px var(--color-rail-halo-soft)}.side-item[aria-current=page]:before{content:"";position:absolute;left:0;top:30%;height:40%;width:2px;border-radius:2px;background:var(--color-rail-accent)}.side-item>svg{flex-shrink:0}.side-label{display:block;min-width:0;overflow:hidden;text-overflow:ellipsis}.side-note{display:block;margin-top:3px;font-size:12px;line-height:1.45;color:var(--color-rail-muted);white-space:normal}.side-dot{margin-left:auto;width:6px;height:6px;border-radius:50%;background:var(--color-danger);flex-shrink:0}html.side-collapsed .side-item{justify-content:center;padding:12px}html.side-collapsed .side-label{display:none}html.side-collapsed .side-dot{position:absolute;right:8px;top:8px;margin:0;box-shadow:0 0 0 2px var(--color-rail)}.side-foot{display:flex;flex-direction:column;gap:8px;padding-top:12px;border-top:1px solid var(--color-rail-line);flex-shrink:0}.side-tools{display:flex;align-items:center;gap:4px;padding:0 2px}html.side-collapsed .side-tools{flex-direction:column;padding:0}.side-tool{position:relative;display:grid;place-items:center;width:36px;height:36px;border-radius:9px;color:var(--color-rail-muted);cursor:pointer;flex-shrink:0;transition:color .14s,background-color .14s}.side-tool:hover{color:var(--color-rail-ink);background:var(--color-rail-hover)}.side-tool.is-open,.side-tool[aria-current=page]{color:var(--color-rail-accent);background:var(--color-rail-soft)}.side-tool-badge{position:absolute;right:-2px;top:-2px;display:grid;place-items:center;height:16px;min-width:16px;padding:0 4px;border-radius:999px;font-size:10px;font-weight:700;line-height:1;color:#fff;box-shadow:0 0 0 2px var(--color-rail)}.side-account{display:flex;align-items:center;gap:10px;width:100%;padding:6px 4px;border-radius:9px;text-align:left;color:var(--color-rail-ink);font-size:13px;cursor:pointer;transition:background-color .14s}.side-account:hover{background:var(--color-rail-hover)}.side-avatar{display:grid;place-items:center;width:32px;height:32px;border-radius:50%;overflow:hidden;background:var(--color-rail-soft);color:var(--color-rail-accent);font-size:13px;font-weight:600;flex-shrink:0}.side-account[data-active] .side-avatar{box-shadow:0 0 0 2px var(--color-rail-brand)}.side-avatar img{width:100%;height:100%;object-fit:cover}.side-account-copy{flex:1;min-width:0}.side-account-copy small,.side-account-name{display:block;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;line-height:1.35}.side-account-copy small{font-size:11.5px;color:var(--color-rail-muted)}.side-version{font-family:var(--font-mono);font-size:10px;color:color-mix(in srgb,var(--color-rail-muted) 65%,transparent);flex-shrink:0;align-self:flex-end;padding-bottom:2px}html.side-collapsed .side-account{justify-content:center;padding:4px 0}html.side-collapsed .side-account-copy,html.side-collapsed .side-version{display:none}.side-tip{position:fixed;z-index:60;transform:translateY(-50%);white-space:nowrap;border-radius:6px;padding:4px 8px;background:var(--color-ink);color:var(--color-canvas);font-size:12px;font-weight:500;box-shadow:0 8px 24px rgba(0,0,0,.18);pointer-events:none}