:root{--bg:#10141c;--bg-soft:#171d28;--surface:#1d2533;--ink:#eef3f8;--muted:#9aa8b8;--primary:#3d9b84;--primary-dark:#2f7d6a;--border:#2b3545;--danger:#f07167;--warning:#e0b35a;color:var(--ink);background:var(--bg);font-synthesis:none;text-rendering:optimizelegibility;-webkit-font-smoothing:antialiased;font-family:IBM Plex Sans,system-ui,sans-serif;line-height:1.5}*{box-sizing:border-box}body{background:radial-gradient(circle at top right, #3d9b8429, transparent 28%), linear-gradient(180deg, #121821, var(--bg));min-width:320px;min-height:100vh;margin:0}a{color:inherit;text-decoration:none}h1,h2,.brand,.brand-mark{letter-spacing:-.02em;font-family:Space Grotesk,system-ui,sans-serif}h1{margin:0;font-size:clamp(1.8rem,2.5vw,2.4rem)}h2{margin:0 0 1rem;font-size:1.15rem}button,input,select,textarea{font:inherit}.shell{grid-template-columns:240px 1fr;min-height:100vh;display:grid}.sidebar{border-right:1px solid var(--border);background:#171d28e6;flex-direction:column;gap:1.5rem;height:100vh;padding:1.5rem 1rem;display:flex;position:sticky;top:0}.brand{gap:.15rem;padding:0 .5rem;font-size:1.4rem;font-weight:700;display:grid}.brand span,.brand-mark span{color:var(--primary);letter-spacing:.08em;text-transform:uppercase;font-size:.85rem}.sidebar nav{flex:1;gap:.35rem;display:grid}.sidebar nav a{color:var(--muted);border-radius:10px;padding:.7rem .8rem;font-weight:600}.sidebar nav a.active,.sidebar nav a:hover{color:var(--ink);background:#3d9b841f}.sidebar-foot{border-top:1px solid var(--border);padding:.5rem}.sidebar-foot p{color:var(--muted);word-break:break-all;margin:0 0 .5rem;font-size:.9rem}.main{padding:2rem}.page-header{margin-bottom:1.5rem}.muted{color:var(--muted);margin:.35rem 0 0}.error{color:var(--danger)}.panel,.stat,.list-row,.auth-panel{background:var(--surface);border:1px solid var(--border);border-radius:16px}.panel{margin-bottom:1.25rem;padding:1.25rem}.stats-grid{grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:.85rem;display:grid}.stat{gap:.4rem;padding:1.1rem 1.2rem;display:grid}.stat span{color:var(--muted);font-size:.9rem}.stat strong{font-family:Space Grotesk,system-ui,sans-serif;font-size:1.8rem}.list{gap:.75rem;display:grid}.list-row{justify-content:space-between;align-items:center;gap:1rem;padding:1rem 1.1rem;display:flex}.btn{cursor:pointer;border:0;border-radius:10px;padding:.7rem 1rem;font-weight:700}.btn:disabled{opacity:.6;cursor:not-allowed}.btn-primary{background:var(--primary);color:#04130f}.btn-primary:hover:not(:disabled){background:var(--primary-dark);color:#fff}.btn-ghost{color:var(--muted);background:0 0}.stack-form{gap:.85rem;display:grid}.stack-form label,.auth-panel label{gap:.35rem;font-size:.95rem;font-weight:600;display:grid}input,select,textarea{border:1px solid var(--border);background:var(--bg-soft);width:100%;color:var(--ink);border-radius:10px;padding:.7rem .85rem}.grid-2{grid-template-columns:repeat(2,minmax(0,1fr));gap:.85rem;display:grid}.badge{border-radius:999px;margin-left:.4rem;padding:.15rem .45rem;font-size:.75rem;font-weight:700;display:inline-block}.badge-admin{color:var(--primary);background:#3d9b8433}.badge-parent{color:var(--warning);background:#e0b35a2e}.auth-page{place-items:center;min-height:100vh;padding:1.5rem;display:grid}.auth-panel{gap:.85rem;width:min(420px,100%);padding:2rem;display:grid}.brand-mark{margin:0;font-size:1.8rem;font-weight:700}.auth-panel h1{font-size:1.6rem}.page-center{min-height:100vh;color:var(--muted);place-items:center;display:grid}@media (width<=860px){.shell{grid-template-columns:1fr}.sidebar{height:auto;position:static}.grid-2{grid-template-columns:1fr}}