:root{
  --bg:#0B132B;
  --panel:#121a33;
  --line:rgba(0,212,196,.18);
  --text:#F3F4F6;
  --muted:#9CA3AF;
  --accent:#00D4C4;
  --warn:#f5c16c;
  --ok:#7dffa8;
  --danger:#f85149;
  --input:#0a1020;
  --radius:16px;
  --font:"Segoe UI",system-ui,-apple-system,sans-serif;
}
*{box-sizing:border-box}
html,body{margin:0;min-height:100%;font-family:var(--font);color:var(--text);background:var(--bg)}
body{min-height:100vh}
a{color:var(--accent);text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
.bg{position:fixed;inset:0;z-index:-1;background:
  radial-gradient(900px 420px at 0% -10%, rgba(0,212,196,.16), transparent 55%),
  radial-gradient(700px 380px at 100% 0%, rgba(124,58,237,.14), transparent 50%),
  linear-gradient(165deg,#0B132B,#0e1730 50%,#0B132B)}
.auth{min-height:100vh;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:24px;gap:14px}
.auth-card{width:min(420px,100%)}
.shell{display:flex;min-height:100vh}
.side{width:240px;flex:0 0 240px;padding:18px 14px;border-right:1px solid var(--line);background:rgba(8,14,32,.72);display:flex;flex-direction:column;position:sticky;top:0;height:100vh}
.brand{display:flex;gap:12px;align-items:center}
.brand.center{justify-content:center;margin-bottom:8px}
.brand b{display:block;letter-spacing:.14em;font-size:14px}
.brand small{color:var(--muted);letter-spacing:.18em;font-size:11px}
.mark{width:42px;height:42px;border-radius:12px;display:grid;place-items:center;font-weight:800;color:#042018;background:linear-gradient(145deg,#00D4C4,#1E3A8A);box-shadow:0 0 0 1px rgba(0,212,196,.35)}
.side nav{display:flex;flex-direction:column;gap:4px;margin-top:28px}
.side nav a{padding:12px 12px;border-radius:12px;color:var(--muted);font-weight:650}
.side nav a:hover,.side nav a.on{background:rgba(0,212,196,.12);color:var(--accent)}
.side-foot{margin-top:auto;display:flex;justify-content:space-between;align-items:center;padding:12px;border-top:1px solid var(--line);color:var(--muted);font-size:13px}
main{flex:1;min-width:0;padding:28px 28px 48px}
.card{background:linear-gradient(180deg,rgba(18,26,51,.96),rgba(11,19,43,.92));border:1px solid var(--line);border-radius:var(--radius);padding:22px;box-shadow:0 22px 55px rgba(0,0,0,.35)}
.card h2,.top h1{margin:0 0 6px}
.top{display:flex;justify-content:space-between;gap:16px;align-items:flex-end;margin-bottom:18px}
.top p,.lead,.muted{color:var(--muted);margin:0}
.lead{margin:8px 0 18px}
label{display:block;margin:12px 0;font-size:12px;letter-spacing:.06em;color:var(--muted)}
input,select,textarea{width:100%;margin-top:6px;background:var(--input);border:1px solid var(--line);border-radius:12px;padding:12px 14px;outline:none}
textarea{resize:vertical;min-height:140px}
input:focus,select:focus,textarea:focus{border-color:var(--accent);box-shadow:0 0 0 3px rgba(0,212,196,.15)}
.btn{display:inline-flex;align-items:center;justify-content:center;border:0;cursor:pointer;border-radius:12px;padding:12px 16px;font-weight:800;background:linear-gradient(90deg,#0f766e,#00D4C4);color:#042018}
.btn.ghost{background:transparent;color:var(--text);border:1px solid var(--line);margin-top:8px}
.btn.tiny{padding:6px 10px;font-size:12px}
.row-btns{display:flex;gap:10px;flex-wrap:wrap;margin-top:8px}
.row-btns .btn.ghost{margin-top:0}
.flash{background:rgba(245,193,108,.12);border:1px solid rgba(245,193,108,.45);color:var(--warn);padding:12px 14px;border-radius:12px;margin-bottom:14px;width:min(720px,100%)}
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-bottom:16px}
.stat{background:rgba(18,26,51,.9);border:1px solid var(--line);border-radius:14px;padding:14px 16px}
.stat span{display:block;color:var(--muted);font-size:12px;letter-spacing:.04em}
.stat strong{display:block;margin-top:6px;font-size:22px;color:var(--accent)}
.chart{width:100%;height:auto;margin-top:8px}
.axis{stroke:rgba(255,255,255,.12)}
.line{fill:none;stroke:#00D4C4;stroke-width:3;stroke-linejoin:round;stroke-linecap:round}
.dot{fill:#F3F4F6;stroke:#00D4C4;stroke-width:2}
.tick{fill:#9CA3AF;font-size:11px}
.table-wrap{overflow:auto}
table{width:100%;border-collapse:collapse;font-size:14px}
th,td{text-align:left;padding:10px 8px;border-bottom:1px solid rgba(255,255,255,.06);white-space:nowrap}
th{color:var(--muted);font-weight:650;font-size:12px;letter-spacing:.04em}
tr.sum td{font-weight:800;color:var(--accent)}
.actions{display:flex;gap:10px;align-items:center}
.tariff{list-style:none;padding:0;margin:8px 0}
.tariff li{display:flex;justify-content:space-between;padding:8px 0;border-bottom:1px solid rgba(255,255,255,.06)}
.drop{border:1px dashed rgba(0,212,196,.45);border-radius:16px;padding:28px 16px;text-align:center;background:rgba(0,212,196,.04);cursor:pointer}
.drop.over{background:rgba(0,212,196,.12)}
.drop-title{margin:0;font-weight:800}
.drop-sub{margin:6px 0 0;color:var(--muted)}
.drop-name{margin-top:10px;color:var(--accent)}
.cols{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.check{display:flex;gap:10px;align-items:flex-start;letter-spacing:0;font-size:14px;color:var(--text)}
.check input{width:auto;margin-top:3px}
.banners{display:flex;flex-direction:column;gap:8px;margin-bottom:14px}
.banner{padding:12px 14px;border-radius:12px;background:rgba(245,193,108,.1);border:1px solid rgba(245,193,108,.4);color:var(--warn)}
.banner.ok{background:rgba(125,255,168,.08);border-color:rgba(125,255,168,.35);color:var(--ok)}
pre.file{overflow:auto;background:#070d1c;border-radius:12px;padding:14px;color:#d1fae5;font-size:13px;line-height:1.45}
.empty{color:var(--muted);padding:24px 0}
.card + .card,.stats + .card,.banners + .card{margin-top:14px}
section.card{margin-top:14px}
@media(max-width:900px){
  .shell{flex-direction:column}
  .side{width:auto;height:auto;position:relative;flex-direction:row;flex-wrap:wrap;gap:8px}
  .side nav{flex-direction:row;margin-top:12px;flex-wrap:wrap}
  .side-foot{width:100%;margin-top:8px}
  main{padding:18px}
  .stats,.cols{grid-template-columns:1fr 1fr}
  .top{flex-direction:column;align-items:flex-start}
}