:root{
  --bg:#0f1115; --card:#171a21; --line:#242833; --text:#e6e8ee;
  --muted:#8b93a3; --accent:#4f8cff; --ok:#2faa64; --lock:#b06a2f; --err:#e0574f;
}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--text);
  font:15px/1.5 system-ui,Segoe UI,Roboto,sans-serif}
header{display:flex;justify-content:space-between;align-items:center;
  padding:14px 20px;border-bottom:1px solid var(--line);gap:12px;flex-wrap:wrap}
header nav{display:flex;gap:16px;align-items:center}
header nav a{text-decoration:none;color:var(--muted)}
header nav a.active{color:var(--text)}
.brand{font-weight:700;color:var(--text);text-decoration:none}
main{max-width:760px;margin:0 auto;padding:24px 16px}
main.center{min-height:100vh;display:flex;align-items:center;justify-content:center}
a{color:var(--accent)}
.muted{color:var(--muted)}
.small{font-size:13px}
.right{margin-left:auto}
.error{color:var(--err)}
h1{font-size:22px;margin:0 0 4px}
h2{font-size:17px;margin:24px 0 10px}
.card h2{margin-top:0}
h3{font-size:15px;margin:4px 0 8px}
label{display:block;margin-top:8px;font-weight:600}
label.check{font-weight:400;display:flex;gap:8px;align-items:center;margin:8px 0}
label.check input{margin:0}
label.file{font-weight:400;color:var(--muted);font-size:13px;margin:0;cursor:pointer}
label.file input{display:block;width:auto;font-size:13px}
code{background:#0d0f14;border:1px solid var(--line);border-radius:4px;padding:1px 5px;font-size:13px}
.row{display:flex;align-items:center}
.row.between{justify-content:space-between;gap:10px}
.row.gap{gap:10px;margin:14px 0}
.row.gap0{gap:10px}
.row.wrap{flex-wrap:wrap}
.grow{flex:1 1 220px}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-top:10px}
.grid2 input:not([type=checkbox]){width:100%}
@media (max-width:600px){.grid2{grid-template-columns:1fr}}
.card{background:var(--card);border:1px solid var(--line);border-radius:12px;
  padding:16px;margin:12px 0}
.card.narrow,form.narrow{max-width:380px}
.card.banner{border-color:rgba(79,140,255,.45)}
.narrow input:not([type=checkbox]){width:100%}
input[type=checkbox]{width:auto;padding:0}
.flash{padding:10px 14px;border-radius:10px;margin:0 0 14px}
.flash.ok{background:rgba(47,170,100,.12);color:var(--ok)}
.flash.err{background:rgba(224,87,79,.12);color:var(--err)}
input,select,textarea{background:#0d0f14;border:1px solid var(--line);color:var(--text);
  padding:10px 12px;border-radius:8px;margin:6px 0;font-size:15px;font-family:inherit}
textarea.key{width:100%;font-family:ui-monospace,Consolas,monospace;resize:none}
button,.btn{display:inline-block;background:var(--accent);color:#fff;border:0;
  padding:10px 16px;border-radius:8px;font-size:15px;cursor:pointer;
  text-decoration:none;text-align:center}
.btn.small,button.small{padding:6px 12px;font-size:13px}
.btn.ghost,button.ghost{background:transparent;border:1px solid var(--line);color:var(--text)}
button.danger,.btn.danger{background:var(--err)}
details summary{cursor:pointer;font-weight:600}
details[open] summary{margin-bottom:10px}
.list{list-style:none;padding:0}
.badge{font-size:12px;padding:3px 8px;border-radius:20px;margin-right:8px;white-space:nowrap}
.badge.ok{background:rgba(47,170,100,.15);color:var(--ok)}
.badge.locked{background:rgba(176,106,47,.15);color:var(--lock)}
.messages{list-style:none;padding:0}
.msg{border-bottom:1px solid var(--line);padding:10px 0}
.msg-head{display:flex;gap:8px;align-items:center;flex-wrap:wrap}
.msg-head .chat{font-weight:600;color:var(--text);text-decoration:none}
.msg-text{margin-top:4px;white-space:pre-wrap;word-break:break-word}
hr{border:0;border-top:1px solid var(--line);margin:14px 0}
.qr{display:inline-block;background:#fff;padding:12px;border-radius:8px;line-height:0;max-width:100%}
.qr svg{max-width:100%;height:auto}
.steps{margin:10px 0;padding-left:22px}
.user-actions{display:flex;flex-wrap:wrap;gap:10px 18px;margin-top:10px}
.user-actions form{display:flex;flex-wrap:wrap;gap:8px;align-items:center;flex:1 1 260px;min-width:0}
.user-actions input{flex:1 1 150px;min-width:0;margin:0}
.user-actions label.check{margin:0}
header nav{flex-wrap:wrap}