:root{
  color-scheme:dark;
  --bg:#0d1117;
  --panel:#111821;
  --panel-soft:#151e29;
  --line:#263241;
  --line-strong:#3a4a5d;
  --text:#edf2f7;
  --muted:#8fa1b3;
  --accent:#41c7df;
  --ok:#35d49c;
  --danger:#ee6b6e;
}
*{box-sizing:border-box}
body{
  margin:0;
  min-height:100vh;
  font-family:"Segoe UI","Microsoft YaHei",Arial,sans-serif;
  background:var(--bg);
  color:var(--text);
}
body:before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  background:
    linear-gradient(90deg,rgba(255,255,255,.035) 1px,transparent 1px),
    linear-gradient(rgba(255,255,255,.025) 1px,transparent 1px);
  background-size:48px 48px;
  mask-image:linear-gradient(180deg,rgba(0,0,0,.55),transparent 70%);
}
main{
  position:relative;
  width:min(1040px,calc(100vw - 40px));
  margin:40px auto;
  padding:28px;
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:10px;
}
h1{
  margin:0 0 6px;
  font-size:24px;
  font-weight:600;
  letter-spacing:0;
}
h2{
  margin:28px 0 12px;
  padding-top:18px;
  border-top:1px solid var(--line);
  color:#d7e4ee;
  font-size:14px;
  font-weight:600;
  text-transform:uppercase;
  letter-spacing:.08em;
}
p{
  margin:10px 0 16px;
  color:var(--muted);
  line-height:1.55;
}
.title-kicker{
  color:var(--muted);
  font-size:13px;
  margin:0 0 6px;
}
.topbar{
  display:flex;
  align-items:flex-start;
  justify-content:space-between;
  gap:20px;
  margin-bottom:24px;
}
.cards{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:18px;
  margin-bottom:20px;
}
.card{
  border:1px solid var(--line);
  border-radius:10px;
  padding:18px;
  background:rgba(255,255,255,.015);
}
.card h2{
  border:0;
  margin:0 0 14px;
  padding:0;
}
.actions{
  display:flex;
  gap:10px;
  flex-wrap:wrap;
  align-items:center;
  margin-top:12px;
}
a{
  color:var(--accent);
  text-decoration:none;
}
a:hover{text-decoration:underline}
form{margin:0}
input,textarea,select{
  width:100%;
  margin:7px 0 16px;
  padding:11px 12px;
  border:1px solid var(--line);
  border-radius:6px;
  background:var(--panel-soft);
  color:var(--text);
  outline:none;
  transition:border-color .14s,background .14s;
}
input:focus,textarea:focus,select:focus{
  border-color:var(--accent);
  background:#172231;
}
textarea{
  min-height:420px;
  resize:vertical;
  font:13px/1.55 "Cascadia Mono",Consolas,monospace;
}
button{
  min-height:36px;
  padding:9px 16px;
  border:1px solid var(--line-strong);
  border-radius:6px;
  background:transparent;
  color:var(--text);
  cursor:pointer;
  font-weight:500;
}
button:hover{
  border-color:var(--accent);
  color:#ffffff;
}
button[type="submit"],form > button:first-of-type{
  background:var(--accent);
  border-color:var(--accent);
  color:#071017;
}
button.danger,.danger{
  border-color:rgba(238,107,110,.6);
  color:#ffd8d9;
  background:transparent;
}
code{
  display:inline-block;
  max-width:100%;
  overflow:auto;
  padding:5px 7px;
  border:1px solid var(--line);
  border-radius:5px;
  background:#0b1016;
  color:#a7eefe;
}
table{
  width:100%;
  border-collapse:collapse;
  border:1px solid var(--line);
  background:transparent;
}
th,td{
  padding:11px 10px;
  border-bottom:1px solid var(--line);
  text-align:left;
  vertical-align:top;
}
th{
  color:#b9c8d7;
  font-size:12px;
  font-weight:600;
  text-transform:uppercase;
  letter-spacing:.06em;
}
tr:last-child td{border-bottom:0}
td input{margin:0}
label{color:#cbd7e2}
.grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:22px;
}
.msg,.ok{color:var(--ok)}
.error{color:var(--danger)}
@media(max-width:780px){
  main{
    width:calc(100vw - 24px);
    margin:18px auto;
    padding:20px;
  }
  .grid,.cards{grid-template-columns:1fr}
  .topbar{display:block}
  table{
    display:block;
    overflow-x:auto;
    white-space:nowrap;
  }
}