:root{color-scheme:dark;--bg:#07111f;--bg-elevated:rgba(11,21,37,.88);--panel:rgba(13,26,44,.92);--border:rgba(126,155,193,.18);--text:#e8efff;--muted:#9cb1ce;--accent:#7dd3fc;--accent-strong:#38bdf8;--good:#86efac;--warn:#fde68a}*{box-sizing:border-box}body,html{margin:0;min-height:100%;background:radial-gradient(circle at top left,rgba(56,189,248,.14),transparent 28%),radial-gradient(circle at top right,rgba(125,211,252,.08),transparent 24%),linear-gradient(180deg,#07111f,#081523);color:var(--text);font-family:ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif}a{color:inherit;text-decoration:none}button,input{font:inherit}.tower-app{display:flex;min-height:100vh}.tower-sidebar{width:220px;flex-shrink:0;border-right:1px solid rgba(126,155,193,.14);background:rgba(5,13,26,.98);display:flex;flex-direction:column;position:-webkit-sticky;position:sticky;top:0;height:100vh;overflow-y:auto}.tower-main{flex:1 1;min-width:0}.shell{min-height:100vh}.container{width:min(1200px,calc(100% - 64px));margin:0 auto}