:root{
  --navy:#0f2142;--navy-950:#0b1830;--brick:#b5342b;--gold:#d4a94a;
  --line:#e4e0d4;--muted:#5c6577;--paper:#f5f6f9;
}
*{box-sizing:border-box;}
body{margin:0;font-family:'Segoe UI',Arial,sans-serif;background:var(--paper);color:#1c2430;}
a{color:var(--brick);text-decoration:none;}
.admin-shell{display:flex;min-height:100vh;}
.admin-sidebar{width:250px;background:var(--navy-950);color:#cdd8ee;flex-shrink:0;}
.admin-sidebar .brand{padding:1.4em 1.2em;display:flex;align-items:center;gap:.6em;border-bottom:1px solid rgba(255,255,255,.08);}
.admin-sidebar .brand img{height:40px;background:#fff;border-radius:6px;padding:.2em;}
.admin-sidebar .brand span{font-weight:700;font-size:.95rem;}
.admin-sidebar nav ul{list-style:none;margin:0;padding:1em 0;}
.admin-sidebar nav a{display:flex;align-items:center;gap:.7em;padding:.8em 1.3em;color:#cdd8ee;font-size:.92rem;font-weight:600;}
.admin-sidebar nav a:hover,.admin-sidebar nav a.active{background:var(--navy);color:#fff;border-left:3px solid var(--gold);}
.admin-main{flex:1;min-width:0;}
.admin-topbar{background:#fff;border-bottom:1px solid var(--line);padding:1em 1.6em;display:flex;justify-content:space-between;align-items:center;}
.admin-content{padding:1.8em;}
.card{background:#fff;border:1px solid var(--line);border-radius:12px;padding:1.6em;margin-bottom:1.4em;box-shadow:0 2px 10px rgba(15,33,66,.06);}
.card h2{margin-top:0;font-size:1.2rem;}
table{width:100%;border-collapse:collapse;font-size:.92rem;}
table th,table td{padding:.7em .6em;border-bottom:1px solid var(--line);text-align:left;vertical-align:middle;}
table th{color:var(--muted);text-transform:uppercase;font-size:.72rem;letter-spacing:.05em;}
table img.thumb-sm{width:56px;height:56px;object-fit:cover;border-radius:6px;}
.btn{display:inline-flex;align-items:center;gap:.4em;padding:.55em 1.1em;border-radius:8px;background:var(--brick);color:#fff;border:0;cursor:pointer;font-weight:600;font-size:.86rem;}
.btn:hover{background:#8f2620;}
.btn-sm{padding:.35em .8em;font-size:.78rem;}
.btn-outline{background:#fff;color:var(--navy);border:1px solid var(--line);}
.btn-outline:hover{background:var(--paper);}
.btn-gold{background:var(--gold);color:var(--navy-950);}
.btn-danger{background:#a02a2a;}
label{display:block;font-weight:600;font-size:.85rem;margin:.9em 0 .35em;}
input[type=text],input[type=date],input[type=number],input[type=email],input[type=password],textarea,select{
  width:100%;padding:.65em .8em;border:1px solid var(--line);border-radius:8px;font-size:.92rem;font-family:inherit;
}
textarea{resize:vertical;min-height:100px;}
input[type=file]{padding:.5em 0;}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:1.4em;}
.alert{padding:.9em 1.1em;border-radius:8px;margin-bottom:1.2em;font-size:.9rem;}
.alert-success{background:#e4f6e9;color:#1e7a3c;border:1px solid #b7e5c4;}
.alert-error{background:#fdeaea;color:#a02a2a;border:1px solid #f4bcbc;}
.badge{background:var(--gold);color:var(--navy-950);padding:.15em .6em;border-radius:999px;font-size:.72rem;font-weight:700;}
.thumb-grid{display:flex;flex-wrap:wrap;gap:.6em;margin-top:.6em;}
.thumb-grid img{width:80px;height:80px;object-fit:cover;border-radius:8px;border:1px solid var(--line);}
.login-wrap{min-height:100vh;display:flex;align-items:center;justify-content:center;background:linear-gradient(120deg,#0b1830,#1c3a70);}
.login-box{background:#fff;padding:2.4em 2.2em;border-radius:14px;width:100%;max-width:380px;box-shadow:0 24px 60px rgba(0,0,0,.3);text-align:center;}
.login-box img{height:60px;margin-bottom:1em;}
.help-text{color:var(--muted);font-size:.8rem;margin-top:.3em;}
@media(max-width:820px){.admin-shell{flex-direction:column;}.admin-sidebar{width:100%;}.form-row{grid-template-columns:1fr;}}