:root{
  --red:#E31E24;
  --red-dark:#B5151A;
  --red-light:#FDEAEA;
  --ink:#181826;
  --ink-soft:#52525E;
  --gray-bg:#F6F6F9;
  --line:#ECECF1;
  --white:#FFFFFF;
  --radius:12px;
  --shadow:0 6px 20px rgba(24,24,38,0.06);
}
*{margin:0;padding:0;box-sizing:border-box;}
body{font-family:'Montserrat',sans-serif;color:var(--ink);background:var(--gray-bg);}
a{text-decoration:none;color:inherit;}
ul{list-style:none;}
img{max-width:100%;display:block;}

/* ---------- AUTH (login) ---------- */
.auth-body{background:linear-gradient(135deg,#181826,#2A2A40);min-height:100vh;display:flex;align-items:center;justify-content:center;padding:20px;}
.auth-card{background:#fff;border-radius:16px;padding:42px;max-width:400px;width:100%;box-shadow:0 20px 50px rgba(0,0,0,0.25);}
.auth-card img{height:42px;margin:0 auto 24px;}
.auth-card h1{font-size:20px;font-weight:800;margin-bottom:6px;text-align:center;}
.auth-card p.sub{text-align:center;color:var(--ink-soft);font-size:13.5px;margin-bottom:26px;}
.auth-card .form-group{margin-bottom:16px;}
.auth-card label{display:block;font-size:12px;font-weight:700;color:var(--ink-soft);text-transform:uppercase;letter-spacing:.5px;margin-bottom:7px;}
.auth-card input{width:100%;padding:13px 14px;border-radius:8px;border:1.5px solid var(--line);font-family:inherit;font-size:14px;}
.auth-card button{width:100%;margin-top:8px;}
.auth-hint{margin-top:20px;font-size:12px;color:#9d9dac;text-align:center;line-height:1.6;}

/* ---------- LAYOUT SHELL ---------- */
.admin-shell{display:flex;min-height:100vh;}
.admin-sidebar{width:250px;background:var(--ink);color:#cfcfd8;display:flex;flex-direction:column;flex-shrink:0;}
.admin-logo{padding:24px 22px;border-bottom:1px solid rgba(255,255,255,0.08);}
.admin-logo img{height:30px;display:block;background:#fff;border-radius:6px;padding:6px 10px;}
.admin-nav{flex:1;padding:18px 14px;display:flex;flex-direction:column;gap:4px;}
.admin-nav a{padding:11px 14px;border-radius:8px;font-size:13.5px;font-weight:600;color:#cfcfd8;}
.admin-nav a:hover{background:rgba(255,255,255,0.06);color:#fff;}
.admin-nav-divider{font-size:10.5px;text-transform:uppercase;letter-spacing:.8px;color:#7a7a8a;padding:18px 14px 6px;font-weight:700;}
.admin-sidebar-footer{padding:16px 14px;border-top:1px solid rgba(255,255,255,0.08);display:flex;flex-direction:column;gap:4px;}
.admin-sidebar-footer a{padding:10px 14px;border-radius:8px;font-size:13px;font-weight:600;color:#cfcfd8;}
.admin-sidebar-footer a:hover{background:rgba(255,255,255,0.06);color:#fff;}
.admin-logout{color:#ff8a8d !important;}

.admin-main{flex:1;display:flex;flex-direction:column;min-width:0;}
.admin-topbar{height:68px;background:#fff;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;padding:0 28px;flex-shrink:0;}
.admin-topbar-title{font-weight:800;font-size:16px;}
.admin-topbar-user{text-align:right;font-size:13px;}
.admin-user-role{display:block;font-size:11px;color:var(--ink-soft);text-transform:uppercase;letter-spacing:.5px;}
.admin-content{padding:30px;flex:1;}

/* ---------- COMMON UI ---------- */
.alert{padding:13px 18px;border-radius:10px;font-size:13.5px;font-weight:600;margin-bottom:20px;}
.alert-success{background:#E6F6EE;color:#1D9E75;border:1px solid #BBE9D2;}
.alert-error{background:#FDEAEA;color:var(--red-dark);border:1px solid #F9C9CA;}

.page-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:24px;flex-wrap:wrap;gap:14px;}
.page-head h1{font-size:21px;font-weight:800;}
.page-head p{color:var(--ink-soft);font-size:13.5px;margin-top:4px;}

.btn{display:inline-flex;align-items:center;justify-content:center;gap:7px;padding:11px 20px;border-radius:8px;font-weight:700;font-size:13px;border:none;cursor:pointer;transition:.15s;}
.btn-primary{background:var(--red);color:#fff;}
.btn-primary:hover{background:var(--red-dark);}
.btn-outline{background:#fff;color:var(--ink);border:1.5px solid var(--line);}
.btn-outline:hover{border-color:var(--red);color:var(--red);}
.btn-danger{background:#fff;color:var(--red);border:1.5px solid #F9C9CA;}
.btn-danger:hover{background:var(--red-light);}
.btn-sm{padding:7px 13px;font-size:12px;}

.card{background:#fff;border-radius:var(--radius);box-shadow:var(--shadow);padding:24px;}

.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-bottom:30px;}
.stat-card{background:#fff;border-radius:var(--radius);box-shadow:var(--shadow);padding:22px;}
.stat-card .num{font-size:28px;font-weight:800;color:var(--red);}
.stat-card .lbl{font-size:12.5px;color:var(--ink-soft);margin-top:4px;}
@media(max-width:900px){.stats-grid{grid-template-columns:repeat(2,1fr);}}

table.data-table{width:100%;border-collapse:collapse;background:#fff;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);}
table.data-table th{text-align:left;font-size:11.5px;text-transform:uppercase;letter-spacing:.5px;color:var(--ink-soft);background:var(--gray-bg);padding:13px 16px;}
table.data-table td{padding:13px 16px;font-size:13.5px;border-bottom:1px solid var(--line);}
table.data-table tr:last-child td{border-bottom:none;}
table.data-table tr:hover td{background:#FBFBFD;}
.table-actions{display:flex;gap:8px;}

.badge{display:inline-flex;padding:4px 11px;border-radius:20px;font-size:11px;font-weight:700;}
.badge-gray{background:var(--gray-bg);color:var(--ink-soft);}
.badge-red{background:var(--red-light);color:var(--red);}
.badge-green{background:#E6F6EE;color:#1D9E75;}
.badge-yellow{background:#FFF6E0;color:#B8860B;}

.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px;}
.form-group{margin-bottom:18px;}
.form-group label{display:block;font-size:12.5px;font-weight:700;color:var(--ink-soft);text-transform:uppercase;letter-spacing:.4px;margin-bottom:8px;}
.form-group input, .form-group select, .form-group textarea{
  width:100%;padding:12px 14px;border-radius:8px;border:1.5px solid var(--line);
  font-family:inherit;font-size:13.5px;color:var(--ink);background:#fff;
}
.form-group textarea{resize:vertical;min-height:90px;}
.form-check{display:flex;align-items:center;gap:9px;}
.form-check input{width:auto;}
.form-actions{display:flex;gap:12px;margin-top:10px;}
@media(max-width:760px){.form-grid{grid-template-columns:1fr;}}

.filter-bar{display:flex;gap:10px;margin-bottom:20px;flex-wrap:wrap;}
.filter-bar a{padding:8px 16px;border-radius:20px;font-size:12.5px;font-weight:700;background:#fff;border:1.5px solid var(--line);color:var(--ink-soft);}
.filter-bar a.active{background:var(--red);border-color:var(--red);color:#fff;}

.empty-state{text-align:center;padding:60px 20px;color:var(--ink-soft);}
.empty-state .ic{font-size:40px;margin-bottom:14px;}

.thumb-preview{width:56px;height:42px;border-radius:6px;background:var(--gray-bg);display:flex;align-items:center;justify-content:center;overflow:hidden;font-size:18px;}
.thumb-preview img{width:100%;height:100%;object-fit:cover;}
.thumb-preview-contain img{object-fit:contain;padding:4px;}
.thumb-preview-lg{width:220px;height:140px;}

.detail-grid{display:grid;grid-template-columns:1fr 320px;gap:24px;}
@media(max-width:900px){.detail-grid{grid-template-columns:1fr;}}
.detail-row{display:flex;justify-content:space-between;padding:12px 0;border-bottom:1px solid var(--line);font-size:13.5px;}
.detail-row:last-child{border-bottom:none;}
.detail-row span:first-child{color:var(--ink-soft);}
.detail-row span:last-child{font-weight:600;text-align:right;}