body{margin:0;min-height:100vh}:root{color-scheme:dark;font-family:Segoe UI,system-ui,sans-serif;background:#0d1117;color:#e6edf3}*{box-sizing:border-box}body{margin:0}.login-shell{min-height:100vh;display:grid;place-items:center;background:radial-gradient(circle at top,#161b22,#0d1117 55%)}.login-card{width:min(420px,92vw);padding:2rem;border:1px solid #30363d;border-radius:12px;background:#161b22;display:grid;gap:.75rem}.login-card input{width:100%;margin-top:.25rem;padding:.55rem .65rem;border-radius:8px;border:1px solid #30363d;background:#0d1117;color:inherit}button{border:1px solid #238636;background:#238636;color:#fff;border-radius:8px;padding:.5rem .85rem;cursor:pointer}button:hover{filter:brightness(1.05)}.error{color:#ff7b72;font-size:.9rem}.app-shell{display:grid;grid-template-columns:220px 1fr;min-height:100vh}.sidebar{border-right:1px solid #30363d;background:#010409;padding:1rem .75rem;display:flex;flex-direction:column;gap:.35rem}.brand{font-weight:700;padding:.5rem .65rem 1rem}.nav{text-align:left;background:transparent;border:none;color:#c9d1d9;padding:.45rem .65rem}.nav.active{background:#21262d;border:1px solid #30363d}.nav.logout{margin-top:auto;border-color:#484f58;background:#21262d}.content{padding:1.25rem 1.5rem}.page-header{display:flex;align-items:center;justify-content:space-between;gap:1rem}.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:1rem;margin-top:1rem}.card{border:1px solid #30363d;border-radius:10px;padding:1rem;background:#161b22}.workspace-pane{height:calc(100vh - 2.5rem);display:flex;flex-direction:column}.editor-frame{flex:1;width:100%;border:1px solid #30363d;border-radius:8px;background:#0d1117}.stats{list-style:none;padding:0;display:grid;gap:.35rem}code{background:#21262d;padding:.15rem .35rem;border-radius:4px}