:root{
  --bg:#0b0b0d;
  --fg:#f3f3f4;
  --muted:#a7a7ad;
  --line:rgba(255,255,255,.16);
  --soft:rgba(255,255,255,.06);
  --soft2:rgba(255,255,255,.10);
  --ok:#43d17a;
  --warn:#f2c94c;
  --err:#ff6b6b;
  --mono:ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,"Liberation Mono","Courier New",monospace;
}

*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  font-family:var(--mono);
  background:var(--bg);
  color:var(--fg);
  line-height:1.5;
}

main{
  max-width:900px;
  margin:0 auto;
  padding:18px 14px 48px;
}

a{
  color:var(--fg);
  text-decoration:underline;
  text-underline-offset:2px;
}
a:hover{opacity:.85}

h1,h2,h3{line-height:1.2;margin:0 0 10px;font-weight:800}
hr{border:none;border-top:1px solid var(--line);margin:18px 0}

pre{
  background:var(--soft);
  border:1px solid var(--line);
  border-radius:10px;
  padding:12px;
  overflow:auto;
}
code{
  background:var(--soft);
  border:1px solid var(--line);
  border-radius:6px;
  padding:0 6px;
  font-family:var(--mono);
}

.muted{color:var(--muted)}
.err{color:var(--err)}
.ok{color:var(--ok)}
.warn{color:var(--warn)}

input,textarea,select{
  font:inherit;
  color:var(--fg);
  background:transparent;
  border:1px solid var(--line);
  border-radius:10px;
  padding:8px 10px;
  width:100%;
  max-width:100%;
}
textarea{min-height:140px}

button{
  font:inherit;
  color:var(--fg);
  background:var(--soft);
  border:1px solid var(--line);
  border-radius:10px;
  padding:8px 12px;
  cursor:pointer;
}
button:hover{background:var(--soft2)}

.nav{
  position:sticky;
  top:0;
  z-index:50;
  background:rgba(11,11,13,.88);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
  padding:10px 12px;
  display:flex;
  gap:12px;
  align-items:baseline;
  justify-content:space-between;
}
.nav a{text-decoration:none;border-bottom:1px solid transparent}
.nav a:hover{border-bottom-color:var(--fg)}
.brand{font-weight:900;letter-spacing:.3px}
.nav-left{display:flex;gap:12px;flex-wrap:wrap;align-items:baseline}
.nav-links{display:flex;gap:10px;flex-wrap:wrap}
.nav-right{display:flex;gap:10px;flex-wrap:wrap;align-items:baseline;justify-content:flex-end}

.callout{
  border:1px solid var(--line);
  background:var(--soft);
  border-radius:14px;
  padding:12px;
  margin:12px 0;
}
.callout.ok{border-color:rgba(67,209,122,.5)}
.callout.warn{border-color:rgba(242,201,76,.5)}
.callout.err{border-color:rgba(255,107,107,.5)}

.tools{display:flex;gap:8px;flex-wrap:wrap;margin:10px 0 14px}
.tool{
  display:inline-block;
  padding:4px 8px;
  border:1px solid var(--line);
  border-radius:999px;
  text-decoration:none;
  color:var(--fg);
  background:transparent;
}
.tool:hover{background:var(--soft)}

table{width:100%;border-collapse:collapse}
th,td{padding:8px;border-bottom:1px solid var(--line);vertical-align:top}
th{color:var(--muted);font-weight:800;text-transform:lowercase}

.page-list{list-style:none;padding:0;margin:0}
.page-list li{padding:6px 0;border-bottom:1px solid rgba(255,255,255,.06)}
.page-list li:last-child{border-bottom:none}

.chat{display:grid;grid-template-columns:1fr 220px;gap:12px;margin-top:12px}
.chat-main{min-width:0}
.chat-log{
  height:55vh;
  overflow:auto;
  border:1px solid var(--line);
  border-radius:14px;
  padding:10px;
  background:rgba(0,0,0,.18);
}
.chat-line{padding:6px 0;border-bottom:1px solid rgba(255,255,255,.06)}
.chat-line:last-child{border-bottom:none}
.chat-meta{color:var(--muted);margin-right:6px}
.chat-form{display:flex;gap:8px;margin-top:10px}
.chat-form input{flex:1}
.chat-side{
  border:1px solid var(--line);
  border-radius:14px;
  padding:10px;
  background:rgba(0,0,0,.12);
}
.chat-roster{list-style:none;padding:0;margin:0}
.chat-roster li{padding:4px 0;border-bottom:1px solid rgba(255,255,255,.06)}
.chat-roster li:last-child{border-bottom:none}

@media(max-width:780px){
  .chat{grid-template-columns:1fr}
}


/* Page tools: subtle (CSS-only) */
.page-tools{ margin: 10px 0 14px; opacity:.75; }
.page-tools a{ color: var(--muted); text-decoration:none; border-bottom:1px solid transparent; }
.page-tools a:hover{ color: var(--fg); border-bottom-color: var(--fg); }

/* Upload status */
.upload-form{ margin: 12px 0; }
.upload-meta{ font-size: 12px; margin-top: 6px; }
.upload-status{ margin-top: 10px; font-size: 12px; min-height: 18px; }
.upload-status.is-uploading::before{
  content:"";
  display:inline-block;
  width:10px; height:10px;
  border:1px solid var(--line);
  border-top-color: var(--fg);
  border-radius:50%;
  margin-right:8px;
  vertical-align:-1px;
  animation: spin .8s linear infinite;
}
button.is-busy{ opacity:.75; cursor:wait; }
@keyframes spin{ to{ transform: rotate(360deg); } }