:root{
  --bg:#f6f7fb;
  --card:#ffffff;
  --text:#111827;
  --muted:#6b7280;
  --border:#e5e7eb;
  --primary:#2563eb;
  --primary-2:#1d4ed8;
  --danger:#dc2626;
  --radius:14px;
}

*{box-sizing:border-box}
html,body{margin:0;padding:0;font-family:ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,Arial,"Apple Color Emoji","Segoe UI Emoji";background:var(--bg);color:var(--text)}
a{color:inherit;text-decoration:none}
.container{max-width:1100px;margin:22px auto;padding:0 16px}
.topbar{position:sticky;top:0;z-index:10;background:rgba(246,247,251,.85);backdrop-filter:blur(10px);border-bottom:1px solid var(--border)}
.topbar-inner{max-width:1100px;margin:0 auto;padding:10px 16px;display:flex;align-items:center;justify-content:space-between}
.brand{display:flex;align-items:center;gap:10px}
.brand-logo{height:28px;max-height:28px;width:auto;display:block}
.brand-text{font-weight:650;color:var(--text)}
.card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:18px;box-shadow:0 1px 2px rgba(0,0,0,.04)}
.grid{display:grid;grid-template-columns:1fr;gap:14px}
@media(min-width:880px){.grid-2{grid-template-columns:1.2fr .8fr}}

h1,h2,h3{margin:0 0 10px 0}
h1{font-size:22px}
h2{font-size:18px;color:var(--text)}
p{margin:8px 0;color:var(--text)}
.muted{color:var(--muted)}
.badge{display:inline-flex;align-items:center;padding:5px 10px;border-radius:999px;background:#eef2ff;border:1px solid #e0e7ff;color:#3730a3;font-weight:600;font-size:12px}
.badge.red{background:#fef2f2;border-color:#fee2e2;color:#991b1b}
.notice{padding:10px 12px;border-radius:12px;border:1px solid #e0e7ff;background:#eef2ff;color:#3730a3;font-size:13px;margin:12px 0}
.notice.success{border-color:#d1fae5;background:#ecfdf5;color:#065f46}
.notice.error{border-color:#fee2e2;background:#fef2f2;color:#991b1b}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:10px 14px;border-radius:12px;background:var(--primary);color:white;font-weight:650;border:1px solid transparent}
.btn:hover{background:var(--primary-2)}
.btn-secondary{background:#ffffff;color:var(--text);border-color:var(--border)}
.btn-secondary:hover{background:#f9fafb}
.btn-danger{background:var(--danger)}
.btn-sm{padding:6px 10px;border-radius:10px;font-size:12px}
.btn-row{display:flex;gap:10px;flex-wrap:wrap;margin-top:10px}
.btn-row.compact{margin-top:0}
hr{border:0;border-top:1px solid var(--border);margin:16px 0}

table{width:100%;border-collapse:separate;border-spacing:0;border:1px solid var(--border);border-radius:14px;overflow:hidden;background:#fff}
th,td{padding:12px 12px;border-bottom:1px solid var(--border);text-align:left;font-size:14px}
th{background:#f9fafb;color:#111827;font-weight:700}
tr:last-child td{border-bottom:0}
td .small{font-size:12px;color:var(--muted)}
.table-wrap{width:100%;overflow:auto}

.input{width:100%;padding:10px 12px;border-radius:12px;border:1px solid var(--border);background:#fff;font-size:14px}
.label{font-weight:650;font-size:13px;color:#111827;margin:0 0 6px 0;display:block}
.form-row{display:grid;grid-template-columns:1fr;gap:12px}
@media(min-width:880px){.form-row-2{grid-template-columns:1fr 1fr}}
.row{display:grid;grid-template-columns:1fr;gap:12px}
@media(min-width:880px){.row{grid-template-columns:1fr 1fr}}
.help{font-size:12px;color:var(--muted);margin-top:6px}

.nav-admin{display:flex;gap:10px;flex-wrap:wrap;margin:12px 0 16px}
.nav-admin a{padding:8px 10px;border:1px solid var(--border);border-radius:12px;background:#fff;color:var(--text);font-weight:650;font-size:13px}
.nav-admin a.active{border-color:#c7d2fe;background:#eef2ff;color:#3730a3}

.brand-sub{color:var(--muted);font-weight:600}