:root{
  --red:#E30613;--black:#1a1a1a;--gray:#f4f4f4;--border:#e2e2e2;
}
*{box-sizing:border-box;margin:0;padding:0;}
body{font-family:'Segoe UI',Arial,sans-serif;color:var(--black);background:var(--gray);}
a{color:var(--red);text-decoration:none;}

.admin-layout{display:flex;min-height:100vh;}
.admin-sidebar{width:230px;background:var(--black);color:#fff;padding:24px 18px;display:flex;flex-direction:column;flex-shrink:0;}
.admin-brand{font-weight:800;font-size:1.2rem;margin-bottom:30px;}
.admin-brand span{color:var(--red);}
.admin-sidebar nav{display:flex;flex-direction:column;gap:14px;}
.admin-sidebar nav a{color:#ddd;font-weight:600;}
.admin-sidebar nav a:hover{color:var(--red);}
.admin-logout{margin-top:20px;color:#ff8a8a !important;}

.admin-main{flex:1;padding:32px 40px;max-width:1100px;}
.admin-main h1{margin-bottom:8px;font-size:1.7rem;}
.admin-main p{color:#555;margin-bottom:20px;}

.admin-panel{background:#fff;border:1px solid var(--border);border-radius:8px;padding:24px;margin-bottom:28px;}
.admin-panel h2{margin-bottom:16px;font-size:1.2rem;}

.admin-form{display:flex;flex-direction:column;gap:16px;max-width:560px;}
.admin-form label{font-weight:600;display:flex;flex-direction:column;gap:6px;}
.admin-form input[type=text],.admin-form input[type=email],.admin-form input[type=password],.admin-form textarea{
  padding:10px 12px;border:1px solid #ccc;border-radius:4px;font-family:inherit;font-size:1rem;
}
.admin-form input[type=file]{padding:6px 0;}
.current-image-preview{width:160px;height:110px;object-fit:cover;border-radius:6px;border:1px solid var(--border);margin-bottom:6px;background:#f0f0f0;}
.two-col{display:grid;grid-template-columns:1fr 1fr;gap:24px;}

.btn{display:inline-block;padding:10px 22px;border-radius:4px;font-weight:700;border:none;cursor:pointer;font-size:.95rem;}
.btn-primary{background:var(--red);color:#fff;}
.btn-small{padding:6px 14px;font-size:.85rem;}
.btn-danger{background:#a3151c;color:#fff;}
.btn-block{width:100%;}

.admin-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;}
.admin-card{background:#fff;border:1px solid var(--border);border-radius:8px;overflow:hidden;display:block;}
.admin-card img{width:100%;height:130px;object-fit:cover;background:#eee;}
.admin-card-body{padding:12px;}
.admin-card-body span{display:block;color:#777;font-size:.8rem;margin-top:4px;}

.admin-items-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-bottom:24px;}
.admin-item-card{border:1px solid var(--border);border-radius:8px;padding:12px;text-align:center;}
.admin-item-card img{width:100%;height:100px;object-fit:cover;border-radius:4px;margin-bottom:8px;background:#eee;}
.admin-item-actions{display:flex;gap:8px;justify-content:center;margin-top:10px;}

.alert{padding:14px 16px;border-radius:6px;margin-bottom:20px;}
.alert-success{background:#e6f7e9;color:#1a7a2e;border:1px solid #b7e3c1;}
.alert-error{background:#fdeaea;color:#a3151c;border:1px solid #f3b8bb;}

.login-body{display:flex;align-items:center;justify-content:center;min-height:100vh;background:var(--black);}
.login-form{background:#fff;padding:40px;border-radius:10px;width:100%;max-width:360px;display:flex;flex-direction:column;gap:16px;}
.login-form h1{text-align:center;margin-bottom:10px;}
.login-form h1 span{color:var(--red);}
.login-form label{font-weight:600;display:flex;flex-direction:column;gap:6px;}
.login-form input{padding:10px 12px;border:1px solid #ccc;border-radius:4px;}

@media (max-width:800px){
  .admin-layout{flex-direction:column;}
  .admin-sidebar{width:100%;}
  .admin-grid,.admin-items-grid{grid-template-columns:repeat(2,1fr);}
  .two-col{grid-template-columns:1fr;}
}