:root{--bg:#0b0d10;--surface-panel:#12161c;--surface-sidebar:#0f1318;--surface-hover:#1a212a;--border:#232a33;--text-primary:#e6eaf0;--text-secondary:#b5bec9;--text-muted:#8792a0;--accent-blue:#3b82f6;--danger:#ef4444;--success:#22c55e;--warning:#f59e0b;--radius-sm:4px;--radius-md:8px;--radius-lg:12px;--radius-round:999px;--shadow-subtle:0 2px 12px rgba(0,0,0,0.28);--motion-fast:120ms;--motion-base:180ms;--easing-standard:cubic-bezier(0.2,0,0,1);--rengal-desktop-titlebar-height:38px;--rengal-shell-height:100vh;--rengal-desktop-bg:#090d14;--rengal-desktop-rail:#0d1420;--rengal-desktop-panel:#141d2b;--rengal-desktop-hover:#25354b;--rengal-desktop-active:#4d7dff;--rengal-desktop-border:rgb(123 163 230/14%);--rengal-desktop-text:#f2f3f5;--rengal-desktop-muted:#8e9bb0}*{box-sizing:border-box}body,html{margin:0;padding:0;min-height:100%;background:var(--bg);color:var(--text-primary)}body{font-family:Aptos,Trebuchet MS,Gill Sans,sans-serif;line-height:1.45}body.rengal-desktop-titlebar-active{--rengal-shell-height:calc(100vh - var(--rengal-desktop-titlebar-height));padding-top:var(--rengal-desktop-titlebar-height);overflow:hidden}.rengal-desktop-titlebar{position:fixed;inset:0 0 auto 0;z-index:2147483000;height:var(--rengal-desktop-titlebar-height);display:flex;align-items:center;border-bottom:1px solid var(--rengal-desktop-border);background:linear-gradient(180deg,var(--rengal-desktop-rail) 0,var(--rengal-desktop-bg) 100%);box-shadow:inset 0 1px 0 rgb(255 255 255/4%),0 10px 24px rgb(0 0 0/18%);-webkit-user-select:none;-moz-user-select:none;user-select:none;-webkit-app-region:drag}.rengal-desktop-titlebar__brand{display:inline-flex;align-items:center;gap:9px;height:28px;margin-left:8px;padding:0 10px 0 7px;border:1px solid var(--rengal-desktop-border);border-radius:10px;color:var(--rengal-desktop-text);background:rgb(77 125 255/8%);font-size:12px;font-weight:800;letter-spacing:.09em;-webkit-app-region:drag}.rengal-desktop-titlebar__logo{width:20px;height:20px;border-radius:6px;object-fit:cover;box-shadow:0 0 0 1px rgb(255 255 255/8%),0 8px 18px rgb(0 0 0/22%)}.rengal-desktop-titlebar__name{line-height:1}.rengal-desktop-titlebar__drag{align-self:stretch;flex:1 1 auto;min-width:24px;-webkit-app-region:drag}.rengal-desktop-titlebar__controls{height:100%;display:inline-flex;align-items:stretch;flex:0 0 auto;-webkit-app-region:no-drag}.rengal-desktop-titlebar__control{width:44px;height:100%;border:0;border-left:1px solid rgb(123 163 230/8%);background:transparent;color:var(--rengal-desktop-muted);display:inline-flex;align-items:center;justify-content:center;cursor:pointer;transition:background var(--motion-fast) var(--easing-standard),color var(--motion-fast) var(--easing-standard);-webkit-app-region:no-drag}.rengal-desktop-titlebar__control:hover{background:var(--rengal-desktop-hover);color:var(--rengal-desktop-text)}.rengal-desktop-titlebar__control--close:hover{background:#d94343;color:#fff}.rengal-desktop-titlebar__icon{width:14px;height:14px;fill:none;stroke:currentColor;stroke-linecap:round;stroke-linejoin:round;stroke-width:1.65}a{color:inherit;text-decoration:none}button,input,textarea{font:inherit}::selection{background:color-mix(in srgb,var(--accent-blue) 32%,transparent 68%)}:focus-visible{outline:2px solid color-mix(in srgb,var(--accent-blue) 84%,white 16%);outline-offset:2px}::-webkit-scrollbar{width:10px;height:10px}::-webkit-scrollbar-track{background:var(--surface-sidebar)}::-webkit-scrollbar-thumb{background:#2c3542;border-radius:999px;border:2px solid var(--surface-sidebar)}::-webkit-scrollbar-thumb:hover{background:#3a4656}