:root{
  --bg:#f4f6fb; --panel:#fff; --ink:#1b2330; --muted:#7b8698;
  --line:#e7ebf2; --brand:#2f6fed; --brand-d:#2459c9;
  --side:#141b2d; --side-ink:#c7d0e0; --side-active:#1f2a44;
  --ok:#1f9d57; --warn:#d98a00; --bad:#d23f3f; --info:#2f6fed;
  --radius:12px; --shadow:0 1px 3px rgba(20,30,60,.08),0 1px 2px rgba(20,30,60,.04);
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  background:var(--bg);color:var(--ink);font-size:15px;line-height:1.45}
a{color:var(--brand);text-decoration:none}
a:hover{text-decoration:underline}
h1{font-size:20px;margin:0}
h2{font-size:15px;margin:0 0 12px;color:var(--ink)}

/* layout */
.layout{display:flex;min-height:100vh}
.sidebar{width:230px;background:var(--side);color:var(--side-ink);
  display:flex;flex-direction:column;position:fixed;inset:0 auto 0 0;z-index:20}
.brand{font-weight:700;font-size:17px;color:#fff;padding:18px 20px;border-bottom:1px solid #20283c}
.sidebar nav{display:flex;flex-direction:column;padding:10px 0;gap:2px;flex:1}
.sidebar nav a{color:var(--side-ink);padding:11px 20px;font-weight:500;border-radius:0}
.sidebar nav a:hover{background:var(--side-active);text-decoration:none;color:#fff}
.sidebar nav a.active{background:var(--side-active);color:#fff;box-shadow:inset 3px 0 0 var(--brand)}
.sidebar-foot{padding:16px 20px;border-top:1px solid #20283c;display:flex;
  align-items:center;justify-content:space-between}
.sidebar-foot .who{font-size:13px;color:#fff;font-weight:600}
.sidebar-foot .logout{color:var(--muted);font-size:13px}
.content{flex:1;margin-left:230px;min-width:0}
.topbar{display:flex;align-items:center;gap:12px;background:var(--panel);
  padding:16px 24px;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:10}
.burger{display:none;font-size:22px;cursor:pointer;line-height:1}
.page{padding:24px;max-width:1200px}

/* cards */
.cards{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-bottom:20px}
.card{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);
  padding:18px;box-shadow:var(--shadow)}
.card.accent{background:linear-gradient(135deg,#2f6fed,#5b8def);border:none;color:#fff}
.card.accent .card-label{color:#dce6ff}
.card-label{font-size:13px;color:var(--muted);margin-bottom:8px}
.card-value{font-size:26px;font-weight:700}

/* panels */
.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-bottom:20px}
.panel{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);
  padding:18px;box-shadow:var(--shadow);margin-bottom:20px}
.panel-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:8px}
.panel-head h2{margin:0}

/* tables */
.table-wrap{overflow-x:auto}
table{border-collapse:collapse;width:100%}
table.data th,table.data td{padding:11px 12px;text-align:left;border-bottom:1px solid var(--line);
  white-space:normal}
table.data thead th{font-size:12px;text-transform:uppercase;letter-spacing:.03em;
  color:var(--muted);font-weight:600;background:#fafbfe}
table.data tbody tr{cursor:pointer}
table.data tbody tr:hover{background:#f7f9ff}
table.mini td,table.mini th{padding:7px 6px;border-bottom:1px solid var(--line)}
.num{text-align:right;font-variant-numeric:tabular-nums}
.nowrap{white-space:nowrap}
.muted{color:var(--muted)}
.center{text-align:center}
.link{color:var(--brand)}
.back{display:inline-block;margin-bottom:14px}

/* badges */
.badge{display:inline-block;padding:3px 10px;border-radius:999px;font-size:12px;font-weight:600;
  white-space:nowrap}
.badge.big{font-size:14px;padding:5px 14px}
.badge-pending{background:#fff3df;color:#a96a00}
.badge-paid{background:#e1f0ff;color:#1d63c9}
.badge-activated{background:#e2f7ec;color:#15824a}
.badge-expired{background:#f3e0f7;color:#8a3da6}
.badge-completed{background:#eceef3;color:#5a6678}
.badge-cancelled{background:#fde4e4;color:#bf2f2f}

/* toolbar / forms */
.toolbar{display:flex;gap:12px;margin-bottom:16px;flex-wrap:wrap}
.search{flex:1;min-width:220px;padding:10px 14px;border:1px solid var(--line);
  border-radius:10px;font-size:14px;background:#fff}
select,input,textarea{font-family:inherit;font-size:14px;color:var(--ink)}
.filters select,select{padding:10px 12px;border:1px solid var(--line);border-radius:10px;background:#fff}
.search:focus,select:focus,input:focus,textarea:focus{outline:2px solid var(--brand);
  outline-offset:0;border-color:var(--brand)}

/* detail */
.kv{display:grid;grid-template-columns:140px 1fr;gap:8px 14px;margin:0 0 18px}
.kv dt{color:var(--muted);font-size:13px}
.kv dd{margin:0;font-weight:500}
.status-control{display:flex;align-items:center;gap:14px;flex-wrap:wrap}
.fields-form{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.field{display:flex;flex-direction:column;gap:5px}
.field.full{grid-column:1/-1}
.field label{font-size:12px;color:var(--muted);font-weight:600}
.field input,.field textarea{padding:9px 12px;border:1px solid var(--line);border-radius:9px;background:#fff}
.actions{flex-direction:row;align-items:center;gap:12px}
button{background:var(--brand);color:#fff;border:none;padding:10px 18px;border-radius:9px;
  font-weight:600;cursor:pointer;font-size:14px}
button:hover{background:var(--brand-d)}
.saved-ok{color:var(--ok);font-weight:600}
.err-msg{color:var(--bad);font-weight:600;font-size:13px}
.reviews{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:12px}
.reviews li{padding:12px;background:#fafbfe;border:1px solid var(--line);border-radius:10px}

/* login */
.login-body{display:flex;align-items:center;justify-content:center;min-height:100vh;
  background:linear-gradient(135deg,#141b2d,#243456)}
.login-card{background:#fff;padding:32px 30px;border-radius:16px;width:340px;max-width:92vw;
  display:flex;flex-direction:column;gap:14px;box-shadow:0 20px 50px rgba(0,0,0,.3)}
.brand-lg{font-size:20px;font-weight:700;text-align:center;margin-bottom:6px}
.login-card label{display:flex;flex-direction:column;gap:5px;font-size:13px;color:var(--muted);font-weight:600}
.login-card input{padding:11px 13px;border:1px solid var(--line);border-radius:10px}
.login-card button{margin-top:6px;padding:12px}
.alert{background:#fde4e4;color:#bf2f2f;padding:10px 12px;border-radius:9px;font-size:14px}

/* mobile */
@media(max-width:820px){
  .sidebar{transform:translateX(-100%);transition:transform .2s;width:220px}
  #nav-toggle:checked ~ .layout .sidebar{transform:translateX(0)}
  .content{margin-left:0}
  .burger{display:block}
  .cards{grid-template-columns:1fr 1fr}
  .grid-2{grid-template-columns:1fr}
  .fields-form{grid-template-columns:1fr}
  .page{padding:16px}
}
@media(max-width:460px){
  .cards{grid-template-columns:1fr}
  .kv{grid-template-columns:110px 1fr}
}