:root{--bg:#0f172a;--panel:#111827;--text:#e5e7eb;--muted:#9ca3af;--accent:#22d3ee;--danger:#ef4444}
*{box-sizing:border-box}
body{margin:0;padding:0;font-family:system-ui,-apple-system,Segoe UI,Roboto,Arial;background:var(--bg);color:var(--text)}
.center{display:flex;align-items:center;justify-content:center;min-height:100vh}
.header{position:fixed;top:0;left:0;right:0;display:flex;justify-content:space-between;align-items:center;background:rgba(17,24,39,.85);padding:12px 18px;border-bottom:1px solid rgba(255,255,255,.06);backdrop-filter:blur(8px)}
.container{padding:80px 20px 30px;max-width:960px;margin:0 auto}
.card{background:var(--panel);border:1px solid rgba(255,255,255,.06);border-radius:12px;padding:24px;width:100%;max-width:520px;box-shadow:0 10px 30px rgba(0,0,0,.3)}
label{display:block;font-size:14px;color:var(--muted);margin:10px 0 6px}
input[type=text],input[type=password],input[type=number]{width:100%;padding:12px 14px;border-radius:10px;border:1px solid rgba(255,255,255,.1);background:#0b1220;color:#e5e7eb;outline:none}
button{padding:10px 14px;border-radius:10px;border:0;background:var(--accent);color:#001018;font-weight:700;cursor:pointer}
a{color:var(--accent);text-decoration:none}
.table{width:100%;border-collapse:collapse;margin:16px 0}
.table th,.table td{padding:10px;border-bottom:1px solid rgba(255,255,255,.08);text-align:left}
.badge{padding:4px 8px;border-radius:8px;background:#0b1220;border:1px solid rgba(255,255,255,.08)}
.muted{color:var(--muted);font-size:12px}
.form-row{display:flex;gap:10px;flex-wrap:wrap}
.form-row > *{flex:1}
.alert{padding:10px 12px;border-radius:8px;background:#10223a;border:1px solid rgba(255,255,255,.06);margin:10px 0}
.alert.err{background:#2a0f16}