:root{
  --bg:#0b0f14; --card:#11161d; --text:#e6edf3; --muted:#9aa7b2; --accent:#5b9cff; --border:#1d2632;
  --bgL:#f6f8fa; --cardL:#ffffff; --textL:#0b0f14; --mutedL:#475569; --borderL:#e5e7eb;
}
*{box-sizing:border-box} body{margin:0;font-family:system-ui,Segoe UI,Roboto,Arial,sans-serif;background:var(--bg);color:var(--text);}
body:not(.dark).theme-auto, body.light{background:var(--bgL);color:var(--textL)}
.auth-wrap{min-height:100vh;display:grid;place-items:center;padding:24px}
.card{background:var(--card);padding:24px;border-radius:16px;box-shadow:0 10px 30px rgba(0,0,0,.3);border:1px solid var(--border)}
body:not(.dark).theme-auto .card{background:var(--cardL);border-color:var(--borderL)}
label{display:block;margin-bottom:12px}
input,textarea,select{width:100%;padding:10px 12px;border:1px solid var(--border);border-radius:12px;background:transparent;color:inherit}
.btn{padding:10px 16px;border-radius:12px;border:1px solid var(--border);background:transparent;color:inherit;cursor:pointer}
.btn.primary{background:var(--accent);border-color:transparent;color:white}
.alert{padding:10px 12px;border-radius:12px;margin:10px 0}
.alert.error{background:#3b1a1a;color:#ffdada}.alert.success{background:#11331a;color:#ccffda}
.topbar{display:flex;gap:12px;align-items:center;padding:10px 12px;border-bottom:1px solid var(--border);position:sticky;top:0;background:inherit}
.spacer{flex:1}
.sidebar{position:fixed;top:50px;bottom:0;left:0;width:240px;border-right:1px solid var(--border);padding:12px;transform:translateX(-100%);transition:.2s;overflow:auto}
.sidebar.open{transform:none}
.content{margin-left:0;padding:16px}
@media (min-width:900px){.sidebar{transform:none}.content{margin-left:240px}}
nav a{display:block;padding:8px 10px;border-radius:10px;color:inherit;text-decoration:none}
nav a:hover{background:rgba(90,120,255,.15)}
.nav-label{margin:12px 8px;color:var(--muted);font-size:12px;text-transform:uppercase}
.grid{display:grid;gap:12px;grid-template-columns:repeat(auto-fit,minmax(220px,1fr))}
.muted{color:var(--muted)}
.inline{display:inline}
.icon-btn{background:transparent;border:1px solid var(--border);border-radius:10px;padding:6px 8px;cursor:pointer}
table{width:100%;border-collapse:collapse;margin-top:12px}
th,td{border-bottom:1px solid var(--border);padding:8px 10px;text-align:left}