:root{
  --a-blue:#0e74dd;
  --a-blue-700:#0b5fc0;
  --a-blue-50:#eef6ff;
  --a-bg:#f6f9ff;
  --a-surface:#ffffff;
  --a-text:#0d2238;
  --a-sub:#4b6075;
  --a-border:#dbe6f2;
  --a-shadow:0 16px 45px rgba(13,34,56,.10);
  --a-shadow2:0 10px 24px rgba(13,34,56,.08);
  --a-radius:18px;
  --a-radius2:24px;
  --a-ok:#10b981;
  --a-warn:#f59e0b;
  --a-danger:#ef4444;
}

/* ---------- Base ---------- */
*{box-sizing:border-box}
html,body{margin:0;padding:0;font-family:system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;color:var(--a-text);background:var(--a-bg)}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
code{font-family:ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace}
.admin-body{min-height:100vh}

/* ---------- Layout ---------- */
.admin-shell{
  display:grid;
  grid-template-columns:280px 1fr;
  min-height:100vh;
}
.admin-sidebar{
  position:sticky;top:0;align-self:start;height:100vh;
  background:rgba(255,255,255,.88);
  backdrop-filter:saturate(140%) blur(10px);
  -webkit-backdrop-filter:saturate(140%) blur(10px);
  border-right:1px solid rgba(219,230,242,.9);
  padding:14px;
  display:flex;flex-direction:column;gap:12px;
}
.admin-main{display:flex;flex-direction:column;min-width:0}
.admin-topbar{
  position:sticky;top:0;z-index:60;
  background:rgba(246,249,255,.72);
  backdrop-filter:saturate(140%) blur(10px);
  -webkit-backdrop-filter:saturate(140%) blur(10px);
  border-bottom:1px solid rgba(219,230,242,.9);
}
.admin-topbar .inner{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding:14px 18px;
}
.admin-container{max-width:1180px;margin:0 auto;padding:18px;width:100%}

/* ---------- Brand ---------- */
.admin-brand{
  display:flex;align-items:center;gap:10px;
  padding:10px 10px;border-radius:16px;
  border:1px solid rgba(219,230,242,.9);
  background:rgba(246,249,255,.65);
}
.admin-brand:hover{background:rgba(14,116,221,.06)}
.admin-brand img{height:30px}
.admin-brand b{display:block;font-weight:950}
.admin-brand small{display:block;color:var(--a-sub);font-weight:800;font-size:12px;margin-top:2px}

/* ---------- Sidebar ---------- */
.side-card{
  border:1px solid rgba(219,230,242,.9);
  background:rgba(246,249,255,.6);
  border-radius:18px;
  padding:12px;
}
.side-nav{display:grid;gap:6px;margin-top:10px}
.side-link{
  display:flex;align-items:center;gap:10px;
  padding:10px 12px;border-radius:14px;
  border:1px solid rgba(219,230,242,.85);
  background:#fff;
  color:var(--a-sub);
  font-weight:900;font-size:14px;
}
.side-link:hover{background:rgba(14,116,221,.06);color:var(--a-text)}
.side-link.active{
  background:rgba(14,116,221,.10);
  border-color:rgba(14,116,221,.22);
  color:var(--a-text);
}
.side-ico{width:18px;height:18px;flex:0 0 18px;color:var(--a-blue)}
.side-foot{margin-top:auto;display:grid;gap:10px}
.pill{
  display:inline-flex;align-items:center;gap:8px;
  padding:8px 12px;border-radius:999px;
  background:rgba(14,116,221,.10);
  border:1px solid rgba(14,116,221,.18);
  color:var(--a-blue);font-weight:900;font-size:12px;
}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  padding:12px 16px;border-radius:16px;border:1px solid var(--a-blue);
  background:var(--a-blue);color:#fff;font-weight:950;cursor:pointer;white-space:nowrap;
}
.btn:hover{background:var(--a-blue-700);border-color:var(--a-blue-700)}
.btn.ghost{background:#fff;color:var(--a-blue)}
.btn.ghost:hover{background:rgba(14,116,221,.08)}
.btn.soft{background:rgba(14,116,221,.10);color:var(--a-blue);border-color:rgba(14,116,221,.18)}
.btn.soft:hover{background:rgba(14,116,221,.16)}
.btn.danger{background:rgba(239,68,68,.10);border-color:rgba(239,68,68,.25);color:#7f1d1d}
.btn.danger:hover{background:rgba(239,68,68,.14)}
.btn.small{padding:9px 12px;border-radius:14px;font-size:13px}
.btn.icon{padding:10px 12px;border-radius:14px}

/* ---------- Page header ---------- */
.page-head{
  display:flex;align-items:flex-end;justify-content:space-between;gap:12px;flex-wrap:wrap;
  margin-bottom:12px;
}
.page-head h1{margin:0;font-size:22px;letter-spacing:-.2px}
.page-head p{margin:0;color:var(--a-sub);font-size:13px;line-height:1.5}

/* ---------- Cards ---------- */
.card{
  background:#fff;border:1px solid var(--a-border);
  border-radius:var(--a-radius2);
  box-shadow:var(--a-shadow2);
}
.card.pad{padding:16px}
.grid{display:grid;gap:12px}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.grid3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}
@media(max-width:980px){
  .admin-shell{grid-template-columns:1fr}
  .admin-sidebar{position:fixed;inset:0 28% 0 0;transform:translateX(-105%);transition:transform .18s ease;z-index:120}
  body.admin-nav-open .admin-sidebar{transform:translateX(0)}
  .admin-topbar .inner{padding:12px 14px}
  .admin-container{padding:14px}
  .grid2,.grid3{grid-template-columns:1fr}
}
@media(max-width:520px){
  .admin-sidebar{inset:0 12% 0 0}
}

/* ---------- Forms ---------- */
.label{font-size:12px;color:var(--a-sub);margin:0 0 6px;font-weight:950}
.input, select, textarea{
  width:100%;padding:12px 12px;border:1px solid var(--a-border);
  border-radius:16px;background:#fff;font-size:14px;outline:none;
}
textarea{min-height:96px;resize:vertical}
.input:focus,select:focus,textarea:focus{border-color:rgba(14,116,221,.6);box-shadow:0 0 0 4px rgba(14,116,221,.12)}
.form-row{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}
@media(max-width:980px){.form-row{grid-template-columns:1fr}}
.help{color:var(--a-sub);font-size:12.5px;line-height:1.55;margin-top:6px}

/* ---------- Tables ---------- */
.table-wrap{overflow:auto;border-radius:18px;border:1px solid rgba(219,230,242,.9)}
.table{width:100%;border-collapse:collapse;background:#fff;min-width:820px}
.table th,.table td{padding:12px 12px;border-bottom:1px solid rgba(219,230,242,.9);text-align:left;font-size:14px}
.table th{background:rgba(246,249,255,.8);color:var(--a-sub);font-weight:950}
.table tr:hover td{background:rgba(14,116,221,.03)}
.kbd{display:inline-flex;align-items:center;justify-content:center;min-width:26px;height:24px;padding:0 8px;border-radius:10px;border:1px solid rgba(219,230,242,.9);background:rgba(246,249,255,.9);color:var(--a-sub);font-weight:900;font-size:12px}

/* ---------- Badges ---------- */
.badge{
  display:inline-flex;align-items:center;gap:8px;
  padding:7px 10px;border-radius:999px;
  border:1px solid rgba(219,230,242,.95);
  background:rgba(246,249,255,.9);
  color:var(--a-sub);
  font-weight:950;font-size:12px;
}
.badge.ok{background:rgba(16,185,129,.10);border-color:rgba(16,185,129,.25);color:#065f46}
.badge.warn{background:rgba(245,158,11,.12);border-color:rgba(245,158,11,.25);color:#92400e}
.badge.danger{background:rgba(239,68,68,.10);border-color:rgba(239,68,68,.25);color:#7f1d1d}

/* ---------- Notices ---------- */
.notice{
  border:1px solid rgba(14,116,221,.18);
  background:rgba(14,116,221,.08);
  padding:12px 14px;border-radius:18px;
  color:var(--a-text);font-size:13px;line-height:1.6;
}
.notice b{color:var(--a-text)}
.notice.ok{border-color:rgba(16,185,129,.25);background:rgba(16,185,129,.10)}
.notice.warn{border-color:rgba(245,158,11,.25);background:rgba(245,158,11,.10)}
.notice.danger{border-color:rgba(239,68,68,.25);background:rgba(239,68,68,.10)}
.notice .sub{color:var(--a-sub);font-weight:850;margin-top:4px}

/* ---------- Small helpers ---------- */
.flex{display:flex;gap:10px;align-items:center;flex-wrap:wrap}
.spread{display:flex;gap:10px;align-items:center;justify-content:space-between;flex-wrap:wrap}
.hr{height:1px;background:rgba(219,230,242,.9);margin:12px 0}
.thumb{
  width:44px;height:34px;border-radius:10px;overflow:hidden;
  border:1px solid rgba(219,230,242,.9);background:rgba(246,249,255,.9);
}
.thumb img{width:100%;height:100%;object-fit:cover}
.actions{display:flex;gap:8px;flex-wrap:wrap;justify-content:flex-end}
.mono{font-family:ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace}

/* ---------- Drawer overlay ---------- */
.admin-overlay{
  position:fixed;inset:0;background:rgba(13,34,56,.35);
  display:none;z-index:110;
}
body.admin-nav-open .admin-overlay{display:block}

/* ---------- Login page ---------- */
.auth-wrap{
  min-height:100vh;display:grid;place-items:center;padding:18px;
  background:
    radial-gradient(900px 320px at 10% 0%, rgba(14,116,221,.18), transparent 60%),
    radial-gradient(900px 320px at 90% 10%, rgba(58,160,255,.14), transparent 55%),
    linear-gradient(180deg, rgba(14,116,221,.10), transparent 60%);
}
.auth-card{max-width:520px;width:100%}
.auth-head{display:flex;align-items:center;justify-content:space-between;gap:12px}
.auth-brand{display:flex;align-items:center;gap:10px}
.auth-brand img{height:34px}
.auth-head b{font-weight:950}
.auth-foot{margin-top:12px;color:var(--a-sub);font-size:12.5px;line-height:1.55}

/* ---------- Modal confirm ---------- */
.modal{
  position:fixed;inset:0;display:none;align-items:center;justify-content:center;
  background:rgba(13,34,56,.35);z-index:200;padding:18px;
}
.modal.open{display:flex}
.modal .box{
  width:min(520px, 100%);
  background:#fff;border:1px solid rgba(219,230,242,.95);
  border-radius:22px;box-shadow:var(--a-shadow);
  padding:16px;
}
.modal .box h3{margin:0;font-size:16px}
.modal .box p{margin:8px 0 0;color:var(--a-sub);line-height:1.6;font-size:13px}
.modal .box .actions{margin-top:14px;justify-content:flex-end}