:root{
  --bg:#FAF6EF; --card:#FFFFFF; --border:#EADFD0;
  --primary:#B4653F; --primary-dark:#8E4D2E; --primary-soft:#F8E7D8;
  --accent:#D9A441; --accent-soft:#FBF0DC;
  --text:#33291F; --muted:#8C7B6C; --danger:#DC2626; --danger-soft:#FDECEC;
  --sidebar:#2C211A; --sidebar-text:#D9C5B4;
  --radius:16px; --shadow:0 6px 24px rgba(120,75,45,.08);
  --font:"Be Vietnam Pro",system-ui,-apple-system,sans-serif;
  --font-display:"Playfair Display","Be Vietnam Pro",serif;
}
*{box-sizing:border-box;margin:0;padding:0}
[hidden]{display:none!important}
body{font-family:var(--font);background:var(--bg);color:var(--text);font-size:14px;line-height:1.55}
a{color:var(--primary);text-decoration:none}
button{font-family:var(--font);cursor:pointer}
input,select,textarea{font-family:var(--font);font-size:14px;padding:10px 12px;border:1px solid var(--border);border-radius:12px;background:#fff;width:100%}
input:focus,select:focus,textarea:focus{outline:2px solid var(--primary-soft);border-color:var(--primary)}
.btn{display:inline-flex;align-items:center;gap:8px;padding:10px 18px;border-radius:12px;border:none;font-weight:600;font-size:14px;transition:.15s}
.btn-primary{background:var(--primary);color:#fff}
.btn-primary:hover{background:var(--primary-dark)}
.btn-ghost{background:var(--primary-soft);color:var(--primary-dark)}
.btn-danger{background:var(--danger-soft);color:var(--danger)}
.btn-outline{background:#fff;border:1px solid var(--border);color:var(--text)}
.card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);padding:20px}
.badge{display:inline-block;padding:3px 10px;border-radius:999px;font-size:12px;font-weight:600}
.badge-green{background:var(--primary-soft);color:var(--primary-dark)}
.badge-amber{background:var(--accent-soft);color:#8a5a12}
.badge-red{background:var(--danger-soft);color:var(--danger)}
.badge-gray{background:#F3ECE0;color:var(--muted)}
table.tbl{width:100%;border-collapse:collapse;background:#fff;border-radius:var(--radius);overflow:hidden}
.tbl th{text-align:left;padding:12px 14px;font-size:12px;text-transform:uppercase;letter-spacing:.4px;color:var(--muted);border-bottom:1px solid var(--border);background:#FDFAF4}
.tbl td{padding:12px 14px;border-bottom:1px solid #F4ECDD;vertical-align:middle}
.tbl tr:hover td{background:#FDFAF3}
.toolbar{display:flex;gap:10px;flex-wrap:wrap;align-items:center;margin-bottom:16px}
.toolbar .spacer{flex:1}
.search{max-width:280px;position:relative}
.grid-kpi{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:14px;margin-bottom:18px}
.kpi{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:16px 18px;box-shadow:var(--shadow)}
.kpi .label{font-size:12px;color:var(--muted);text-transform:uppercase;letter-spacing:.4px}
.kpi .value{font-size:26px;font-weight:700;margin-top:4px}
.kpi .sub{font-size:12px;color:var(--muted);margin-top:2px}
.modal-back{position:fixed;inset:0;background:rgba(60,40,25,.5);display:flex;align-items:center;justify-content:center;z-index:100;padding:16px}
.modal{background:#fff;border-radius:20px;max-width:560px;width:100%;max-height:92vh;overflow:auto;padding:24px;box-shadow:0 20px 60px rgba(60,35,15,.3)}
.modal h3{margin-bottom:16px;font-family:var(--font-display)}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.form-group{margin-bottom:12px}
.form-group label{display:block;font-size:13px;font-weight:600;margin-bottom:6px}
.form-actions{display:flex;gap:10px;justify-content:flex-end;margin-top:18px}
#toast-wrap{position:fixed;bottom:20px;right:20px;z-index:200;display:flex;flex-direction:column;gap:8px}
.toast{background:#33291F;color:#fff;padding:12px 18px;border-radius:12px;box-shadow:0 8px 24px rgba(0,0,0,.25);font-size:13px;animation:tin .25s}
@keyframes tin{from{transform:translateY(10px);opacity:0}}
.view-head{display:flex;align-items:center;gap:12px;margin-bottom:18px;flex-wrap:wrap}
.view-head h2{font-size:23px;font-family:var(--font-display);font-weight:700}
.view-head .spacer{flex:1}
.empty{text-align:center;padding:48px 16px;color:var(--muted)}
@media(max-width:720px){.form-row{grid-template-columns:1fr}.kpi .value{font-size:22px}}

/* ============ THEMES — màu sắc giao diện (data-theme trên <html>) ============ */
[data-theme="pink"]{
  --bg:#FDF6F8; --card:#FFFFFF; --border:#F2DCE5;
  --primary:#C0447C; --primary-dark:#9C3563; --primary-soft:#FBE7F0;
  --accent:#DE9A6C; --accent-soft:#FBEEDF;
  --text:#3A2A30; --muted:#9C7F88;
  --sidebar:#3A2430; --sidebar-text:#E5CBD6;
  --shadow:0 6px 24px rgba(150,60,100,.08);
}
[data-theme="blue"]{
  --bg:#F4F7FC; --card:#FFFFFF; --border:#DCE6F2;
  --primary:#2F7FC4; --primary-dark:#23649E; --primary-soft:#E2EFFA;
  --accent:#D9A441; --accent-soft:#FBF0DC;
  --text:#26303B; --muted:#7E8FA1;
  --sidebar:#20303F; --sidebar-text:#C3D2E0;
  --shadow:0 6px 24px rgba(50,100,160,.08);
}
[data-theme="green"]{
  --bg:#F5F8F3; --card:#FFFFFF; --border:#DCE7D6;
  --primary:#4E8F5B; --primary-dark:#3B7046; --primary-soft:#E5F1E6;
  --accent:#D9A441; --accent-soft:#FBF0DC;
  --text:#2A332A; --muted:#7F8B7E;
  --sidebar:#243024; --sidebar-text:#CBD8C9;
  --shadow:0 6px 24px rgba(60,120,70,.08);
}
[data-theme="purple"]{
  --bg:#F7F4FC; --card:#FFFFFF; --border:#E1D8F1;
  --primary:#7C5CBF; --primary-dark:#62489C; --primary-soft:#EBE4F9;
  --accent:#D9A441; --accent-soft:#FBF0DC;
  --text:#2E2A3A; --muted:#8A8299;
  --sidebar:#2C2540; --sidebar-text:#CFC6E3;
  --shadow:0 6px 24px rgba(100,80,160,.08);
}