:root{
  --bg:#0b1020;
  --card:#111a33;
  --text:#e8eeff;
  --muted:#a9b5d6;
  --border:rgba(255,255,255,.12);
  --accent:#6aa6ff;
  --danger:#ff6a8a;
  --ok:#44d19d;
}

*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "Apple Color Emoji","Segoe UI Emoji";
  background: radial-gradient(1200px 600px at 20% 10%, rgba(106,166,255,.25), transparent 60%),
              radial-gradient(1000px 700px at 90% 20%, rgba(68,209,157,.18), transparent 55%),
              var(--bg);
  color:var(--text);
}

a{color:var(--accent);text-decoration:none}
a:hover{text-decoration:underline}

.container{
  max-width: 980px;
  margin: 0 auto;
  padding: 28px 18px 44px;
}

.header{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  margin-bottom:18px;
}

.brand{
  display:flex;
  align-items:center;
  gap:10px;
}
.logo{
  width:34px;
  height:34px;
  border-radius:10px;
  box-shadow: 0 8px 22px rgba(0,0,0,.25);
  display:block;
  object-fit:cover;
}
.brand h1{
  font-size: 18px;
  margin:0;
  letter-spacing:.2px;
}
.brand p{margin:2px 0 0;color:var(--muted);font-size:12px}

.lang{
  display:flex;gap:10px;align-items:center;
  font-size: 13px;
  color: var(--muted);
}
.lang a{
  padding: 6px 10px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: rgba(255,255,255,.03);
}
.lang a.active{
  border-color: rgba(106,166,255,.6);
  color: var(--text);
}

.grid{
  display:grid;
  grid-template-columns: 1.2fr .8fr;
  gap: 16px;
}
@media (max-width: 860px){
  .grid{grid-template-columns:1fr}
}

.card{
  background: rgba(17,26,51,.9);
  border: 1px solid var(--border);
  border-radius: 18px;
  box-shadow: 0 12px 30px rgba(0,0,0,.22);
  padding: 18px;
}

.card h2{margin:0 0 10px;font-size:16px}
.card p{margin:0 0 10px;color:var(--muted);line-height:1.55}

.form{
  display:grid;
  gap: 12px;
  margin-top: 12px;
}
.row{
  display:grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}
@media (max-width: 520px){
  .row{grid-template-columns:1fr}
}

label{
  display:block;
  font-size: 12px;
  color: var(--muted);
  margin-bottom: 6px;
}
input, select{
  width: 100%;
  padding: 10px 12px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: rgba(0,0,0,.18);
  color: var(--text);
  outline: none;
}

/* Improve dropdown readability on some browsers */
select{ color-scheme: dark; }
option{ background: var(--card); color: var(--text); }

/* Improve select dropdown readability on dark themes (best-effort across browsers) */
select{ color-scheme: dark; }
select option{ background: var(--card); color: var(--text); }
input:focus, select:focus{
  border-color: rgba(106,166,255,.7);
  box-shadow: 0 0 0 3px rgba(106,166,255,.16);
}

.hint{
  font-size: 12px;
  color: var(--muted);
}

.notice{
  margin-top: 12px;
  padding: 10px 12px;
  border-radius: 14px;
  border: 1px solid var(--border);
  background: rgba(255,255,255,.03);
  color: var(--muted);
  font-size: 13px;
  line-height: 1.55;
}
.notice strong{color:var(--text)}

.badge{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding: 8px 10px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: rgba(0,0,0,.18);
  font-size: 12px;
  color: var(--muted);
}

.kv{
  display:grid;
  grid-template-columns: 1fr;
  gap: 8px;
  margin-top: 10px;
}
.kv .item{
  display:flex;
  justify-content:space-between;
  gap:12px;
  padding: 10px 12px;
  border-radius: 14px;
  border: 1px solid var(--border);
  background: rgba(0,0,0,.12);
  font-size: 13px;
}
.kv .k{color:var(--muted)}
.kv .v{color:var(--text);word-break:break-all}

.status{
  margin-top: 12px;
  padding: 10px 12px;
  border-radius: 14px;
  border: 1px solid var(--border);
  background: rgba(0,0,0,.12);
  font-size: 13px;
}
.status.ok{border-color: rgba(68,209,157,.5)}
.status.fail{border-color: rgba(255,106,138,.55)}
.status .title{font-weight:600;margin-bottom:6px}
.status .desc{color:var(--muted);line-height:1.55}

.footer{
  margin-top: 18px;
  color: var(--muted);
  font-size: 12px;
  line-height:1.6;
}
.footer a{color:var(--muted)}
.footer a:hover{color:var(--text)}


/* Custom button (used in IPN/hosted-button flow) */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:10px;
  border:0;
  border-radius:12px;
  padding:12px 16px;
  font-weight:700;
  cursor:pointer;
  background:rgba(255,255,255,0.12);
  color:var(--text);
  transition:transform .06s ease, background .2s ease;
}
.btn img{
  width: 52px;
  height: 22px;
  object-fit: contain;
  border-radius: 6px;
}
.btn:hover{ background:rgba(255,255,255,0.18); }
.btn:active{ transform:translateY(1px); }