:root{
  --red:#c62828; --red2:#b71c1c; --black:#101010; --white:#fff;
  --gray:#f4f5f7; --text:#1f2328; --muted:#6b7280;
  --shadow: 0 10px 30px rgba(0,0,0,.12);
  --radius: 16px; --radius2: 22px;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0;font-family:system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;background:var(--gray);color:var(--text)}
a{color:inherit;text-decoration:none}
.shell{display:grid;grid-template-columns:300px 1fr;min-height:100vh}
.side{background:linear-gradient(180deg,var(--black), #0b0b0b);color:#fff;padding:18px;position:sticky;top:0;height:100vh}
.side__brand{display:flex;align-items:center;gap:12px;margin-bottom:14px}
.logo{width:44px;height:44px;border-radius:14px;background:linear-gradient(135deg,var(--red),var(--red2));display:grid;place-items:center;font-weight:900}
.name{font-weight:900;letter-spacing:.6px}
.tag{font-size:12px;color:rgba(255,255,255,.66)}
.side__user{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.12);padding:12px;border-radius:16px;margin:10px 0 14px}
.user__name{font-weight:900}
.user__meta{font-size:12px;color:rgba(255,255,255,.65)}
.menu{display:flex;flex-direction:column;gap:6px}
.menu__item{padding:12px 12px;border-radius:14px;background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.10);font-weight:800}
.menu__item:hover{background:rgba(255,255,255,.08)}
.menu__sep{height:10px}
.menu__title{font-size:11px;text-transform:uppercase;letter-spacing:1px;color:rgba(255,255,255,.55);margin:6px 0}
.side__foot{position:absolute;bottom:16px;left:18px;right:18px;font-size:12px;color:rgba(255,255,255,.55)}

.main{padding:18px}
.main__inner{max-width:1100px;margin:0 auto}
.card{background:#fff;border-radius:22px;box-shadow:var(--shadow);padding:16px}
.card + .card{margin-top:12px}
.grid2{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
h1,h2,h3{margin:0 0 10px}
.muted{color:var(--muted)}
.btn{display:inline-flex;align-items:center;justify-content:center;background:linear-gradient(135deg,var(--red2),var(--red));color:#fff;border:0;padding:10px 12px;border-radius:14px;font-weight:900;cursor:pointer}
.btn--ghost{background:#fff;color:#111;border:1px solid #e5e7eb}
.btn--small{padding:8px 10px;border-radius:12px;font-weight:900}
.row{display:flex;gap:10px;flex-wrap:wrap;align-items:center}
table{width:100%;border-collapse:collapse}
th,td{padding:10px;border-bottom:1px solid #eee;text-align:left;font-size:14px}
th{font-size:12px;text-transform:uppercase;letter-spacing:.7px;color:#111}
.badge{display:inline-flex;align-items:center;padding:6px 10px;border-radius:999px;font-weight:800;font-size:12px;border:1px solid #eee}
.badge--ok{background:#dcfce7;color:#14532d;border-color:#bbf7d0}
.badge--warn{background:#fef9c3;color:#713f12;border-color:#fde68a}
.badge--bad{background:#fee2e2;color:#7f1d1d;border-color:#fecaca}
input,select,textarea{width:100%;padding:12px 12px;border:1px solid #e5e7eb;border-radius:14px;font-size:14px}
label{display:flex;flex-direction:column;gap:6px;font-weight:800;font-size:12px}
.alert{padding:12px 14px;border-radius:14px;margin:10px 0;font-weight:800}
.alert--error{background:#fee2e2;color:#7f1d1d}
.alert--ok{background:#dcfce7;color:#14532d}
@media(max-width:1000px){
  .shell{grid-template-columns:1fr}
  .side{position:relative;height:auto}
  .grid2,.grid3{grid-template-columns:1fr}
}