:root{
  --bg:#0a0d10;
  --panel:#12161a;
  --panel-edge:#1d232a;
  --grid:rgba(255,255,255,0.035);
  --amber:#ffb300;
  --amber-dim:#7a5900;
  --amber-glow:rgba(255,179,0,0.35);
  --steel:#8892a0;
  --steel-dim:#4a5058;
  --online:#00e28a;
  --offline:#ff4136;
}
*{box-sizing:border-box;}
html,body{
  margin:0;min-height:100%;
  background:radial-gradient(ellipse at 50% 0%, #14191f 0%, var(--bg) 60%);
  color:var(--steel);
  font-family:'Chakra Petch',sans-serif;
}
body::before{
  content:"";position:fixed;inset:0;
  background-image:linear-gradient(var(--grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid) 1px, transparent 1px);
  background-size:36px 36px;pointer-events:none;z-index:0;
}
a{color:var(--amber);text-decoration:none;}
a:hover{text-decoration:underline;}

.stage{position:relative;z-index:1;min-height:100vh;display:flex;align-items:center;justify-content:center;padding:24px;}
.board{width:min(960px, 100%);border:1px solid var(--panel-edge);background:linear-gradient(180deg,#10141810,var(--panel));box-shadow:0 0 0 1px rgba(255,179,0,0.05),0 30px 80px -30px rgba(0,0,0,0.9);position:relative;}
.board::before{content:"";position:absolute;inset:0;border:1px solid rgba(255,179,0,0.08);pointer-events:none;}

.titlebar{display:flex;align-items:center;justify-content:space-between;padding:16px 22px;border-bottom:1px solid var(--panel-edge);letter-spacing:0.14em;font-size:12px;text-transform:uppercase;color:var(--steel-dim);flex-wrap:wrap;gap:10px;}
.titlebar .name{color:var(--steel);font-weight:600;}
.titlebar .links{display:flex;align-items:center;gap:16px;}
.tg-link{color:var(--amber);font-weight:600;letter-spacing:0.08em;}

.status-pill{display:flex;align-items:center;gap:8px;font-weight:600;}
.dot{width:7px;height:7px;border-radius:50%;background:var(--offline);box-shadow:0 0 8px var(--offline);}
.dot.on{background:var(--online);box-shadow:0 0 8px var(--online);animation:pulse 1.8s ease-in-out infinite;}
@keyframes pulse{0%,100%{opacity:1;}50%{opacity:0.4;}}

.readout{padding:56px 20px 40px;display:flex;flex-direction:column;align-items:center;gap:18px;}
.digits{display:flex;gap:6px;}
.digit-cell{position:relative;width:52px;height:76px;background:#0c0f12;border:1px solid var(--panel-edge);border-radius:3px;overflow:hidden;box-shadow:inset 0 0 18px rgba(0,0,0,0.6);}
.digit-cell .strip{position:absolute;left:0;top:0;width:100%;display:flex;flex-direction:column;transition:transform 520ms cubic-bezier(.2,.9,.25,1);}
.digit-cell .strip div{height:76px;display:flex;align-items:center;justify-content:center;font-family:'JetBrains Mono',monospace;font-size:44px;font-weight:700;color:var(--amber);text-shadow:0 0 14px var(--amber-glow);}
.digit-cell.flash{animation:flash 520ms ease-out;}
@keyframes flash{0%{box-shadow:inset 0 0 30px rgba(255,179,0,0.55);}100%{box-shadow:inset 0 0 18px rgba(0,0,0,0.6);}}
.caption{font-size:11px;letter-spacing:0.22em;text-transform:uppercase;color:var(--steel-dim);}

.stats{display:grid;grid-template-columns:1fr 1fr 1fr;border-top:1px solid var(--panel-edge);border-bottom:1px solid var(--panel-edge);}
.stat{padding:16px 22px;border-right:1px solid var(--panel-edge);}
.stat:last-child{border-right:none;}
.stat .label{font-size:10px;letter-spacing:0.18em;text-transform:uppercase;color:var(--steel-dim);margin-bottom:6px;}
.stat .value{font-family:'JetBrains Mono',monospace;font-size:20px;color:var(--steel);}

.log{padding:18px 22px 22px;}
.log .label{font-size:10px;letter-spacing:0.18em;text-transform:uppercase;color:var(--steel-dim);margin-bottom:10px;}
.log-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:6px;max-height:150px;overflow-y:auto;}
.log-list li{display:flex;justify-content:space-between;font-family:'JetBrains Mono',monospace;font-size:12.5px;color:var(--steel);padding:4px 8px;background:rgba(255,255,255,0.015);border-left:2px solid var(--amber-dim);}
.log-list li .t{color:var(--steel-dim);}
.log-list li .plus{color:var(--online);margin-right:8px;}
.log-empty{color:var(--steel-dim);font-size:12.5px;font-family:'JetBrains Mono',monospace;}

/* --- login / admin-login card --- */
.card{width:min(420px,100%);border:1px solid var(--panel-edge);background:var(--panel);padding:36px 30px;}
.card h1{font-size:14px;letter-spacing:0.16em;text-transform:uppercase;color:var(--steel);margin:0 0 22px;}
.card input[type=text],.card input[type=password]{width:100%;background:#0c0f12;border:1px solid var(--panel-edge);color:var(--amber);font-family:'JetBrains Mono',monospace;font-size:16px;letter-spacing:0.08em;padding:12px 14px;margin-bottom:14px;}
.card input:focus{outline:none;border-color:var(--amber-dim);}
.card button{width:100%;background:var(--amber);color:#0a0d10;border:none;font-weight:700;letter-spacing:0.08em;text-transform:uppercase;padding:12px;cursor:pointer;font-family:'Chakra Petch',sans-serif;}
.card button:hover{background:#ffc633;}
.card .error{color:var(--offline);font-size:12.5px;margin-bottom:14px;}
.card .hint{margin-top:18px;font-size:12px;color:var(--steel-dim);text-align:center;}

/* --- admin dashboard --- */
.admin-wrap{max-width:1100px;margin:0 auto;padding:28px 20px 60px;position:relative;z-index:1;}
.admin-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:22px;}
.admin-header h1{font-size:15px;letter-spacing:0.14em;text-transform:uppercase;color:var(--steel);}
.logout{font-size:12px;color:var(--steel-dim);}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-bottom:22px;}
.metric{border:1px solid var(--panel-edge);background:var(--panel);padding:16px 18px;}
.metric .label{font-size:10px;letter-spacing:0.18em;text-transform:uppercase;color:var(--steel-dim);margin-bottom:6px;}
.metric .value{font-family:'JetBrains Mono',monospace;font-size:26px;color:var(--amber);}

.panel{border:1px solid var(--panel-edge);background:var(--panel);margin-bottom:20px;}
.panel h2{font-size:12px;letter-spacing:0.14em;text-transform:uppercase;color:var(--steel);margin:0;padding:14px 18px;border-bottom:1px solid var(--panel-edge);}
.panel .body{padding:16px 18px;}

.keygen-form{display:flex;gap:10px;align-items:end;flex-wrap:wrap;}
.keygen-form label{font-size:11px;color:var(--steel-dim);display:block;margin-bottom:6px;}
.keygen-form input{background:#0c0f12;border:1px solid var(--panel-edge);color:var(--steel);padding:8px 10px;font-family:'JetBrains Mono',monospace;}
.keygen-form button{background:var(--amber);color:#0a0d10;border:none;font-weight:700;padding:9px 16px;cursor:pointer;text-transform:uppercase;letter-spacing:0.06em;font-size:12px;}

table{width:100%;border-collapse:collapse;font-size:12.5px;}
th,td{text-align:left;padding:8px 10px;border-bottom:1px solid var(--panel-edge);font-family:'JetBrains Mono',monospace;}
th{color:var(--steel-dim);font-weight:500;text-transform:uppercase;font-size:10px;letter-spacing:0.1em;}
tr:hover td{background:rgba(255,255,255,0.02);}
.badge{padding:2px 8px;border-radius:2px;font-size:10.5px;letter-spacing:0.05em;text-transform:uppercase;}
.badge.free{color:var(--online);border:1px solid var(--online);}
.badge.used{color:var(--steel-dim);border:1px solid var(--steel-dim);}
.badge.revoked{color:var(--offline);border:1px solid var(--offline);}
.mini-btn{background:transparent;border:1px solid var(--offline);color:var(--offline);padding:4px 10px;font-size:11px;cursor:pointer;text-transform:uppercase;letter-spacing:0.05em;}
.mini-btn:hover{background:rgba(255,65,54,0.1);}
.table-scroll{max-height:340px;overflow-y:auto;overflow-x:auto;-webkit-overflow-scrolling:touch;}
table{min-width:520px;}

.bars{display:flex;align-items:flex-end;gap:4px;height:80px;padding:10px 0;}
.bar{flex:1;background:var(--amber-dim);position:relative;min-height:2px;}
.bar span{position:absolute;bottom:calc(100% + 4px);left:50%;transform:translateX(-50%);font-size:9px;color:var(--steel-dim);white-space:nowrap;}

/* ============================= МОБИЛЬНАЯ АДАПТАЦИЯ ============================= */
@media (max-width: 640px){
  .stage{padding:10px;align-items:flex-start;padding-top:20px;}

  .titlebar{padding:12px 14px;font-size:10px;gap:8px;}
  .titlebar .links{width:100%;justify-content:space-between;}
  .tg-link{font-size:10.5px;word-break:break-all;}

  .readout{padding:32px 8px 26px;gap:12px;}
  .digits{gap:3px;}
  .digit-cell{width:26px;height:40px;border-radius:2px;}
  .digit-cell .strip div{height:40px;font-size:20px;}
  .caption{font-size:9px;letter-spacing:0.14em;text-align:center;}

  .stats{grid-template-columns:1fr;}
  .stat{border-right:none;border-bottom:1px solid var(--panel-edge);padding:12px 16px;}
  .stat:last-child{border-bottom:none;}
  .stat .value{font-size:17px;}

  .log{padding:14px 14px 18px;}
  .log-list{max-height:120px;}

  .card{padding:26px 18px;width:100%;}
  .card h1{font-size:13px;}

  .admin-wrap{padding:16px 10px 40px;}
  .admin-header{flex-direction:column;align-items:flex-start;gap:6px;}
  .admin-header h1{font-size:13px;}

  .grid-3{grid-template-columns:1fr;}
  .metric .value{font-size:22px;}

  .keygen-form{flex-direction:column;align-items:stretch;}
  .keygen-form > div{width:100%;}
  .keygen-form input{width:100%;}
  .keygen-form button{width:100%;}

  .panel h2{padding:12px 14px;font-size:11px;}
  .panel .body{padding:14px;}
}

@media (max-width: 380px){
  .digit-cell{width:21px;height:32px;}
  .digit-cell .strip div{height:32px;font-size:16px;}
}