/* HelixAI LLM — UI */
:root{
  --bg: #0a0e1a;
  --bg2: #0f1525;
  --panel: #131b30;
  --panel-2: #182243;
  --border: #223157;
  --text: #e7ecf6;
  --muted: #8a97b8;
  --accent: #6c8bff;
  --accent-2: #b06cff;
  --ok: #3ddc97;
  --warn: #ffb454;
  --danger: #ff6b81;
  --radius: 12px;
  --mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Inter, system-ui, sans-serif;
}
*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  font-family:var(--sans);
  background:
    radial-gradient(1200px 600px at 10% -10%, rgba(108,139,255,.15), transparent 60%),
    radial-gradient(900px 500px at 100% 0%, rgba(176,108,255,.12), transparent 60%),
    var(--bg);
  color:var(--text);
  font-size:14px;
  line-height:1.5;
}
a{color:var(--accent);text-decoration:none}
a:hover{text-decoration:underline}
code,pre,.mono{font-family:var(--mono)}

/* ---------- App shell ---------- */
.app{display:flex;min-height:100vh}
.sidebar{
  width:240px;flex:0 0 240px;
  background:linear-gradient(180deg, rgba(255,255,255,.02), transparent), var(--bg2);
  border-right:1px solid var(--border);
  display:flex;flex-direction:column;padding:20px 14px;gap:18px;position:sticky;top:0;height:100vh
}
.brand{display:flex;align-items:center;gap:10px;color:var(--text);font-weight:700;font-size:18px}
.brand img{width:28px;height:28px}
.brand em{font-style:normal;background:linear-gradient(90deg,var(--accent),var(--accent-2));-webkit-background-clip:text;background-clip:text;color:transparent;font-weight:800;margin-left:4px}
.sidebar nav{display:flex;flex-direction:column;gap:4px;margin-top:8px}
.sidebar nav a{
  display:flex;align-items:center;gap:10px;
  padding:10px 12px;border-radius:10px;color:var(--muted);font-weight:500
}
.sidebar nav a:hover{background:rgba(255,255,255,.04);color:var(--text);text-decoration:none}
.sidebar nav a.active{
  background:linear-gradient(135deg, rgba(108,139,255,.18), rgba(176,108,255,.12));
  color:var(--text);border:1px solid rgba(108,139,255,.3)
}
.sidebar .ico{display:inline-block;width:18px;text-align:center;opacity:.9}
.side-foot{margin-top:auto;display:flex;flex-direction:column;gap:8px;padding-top:10px;border-top:1px solid var(--border)}
.side-foot .muted{font-size:11px}
.side-foot .link{background:none;border:none;color:var(--muted);text-align:left;cursor:pointer;padding:6px 0}
.side-foot .link:hover{color:var(--text)}

.main{flex:1;padding:28px 34px;min-width:0}
.main.public{padding:28px 5vw;max-width:1100px;margin:0 auto}
.topbar{display:flex;align-items:center;gap:16px;margin-bottom:22px}
.topbar h1{margin:0;font-size:22px;font-weight:700;letter-spacing:.2px}

/* ---------- Pills & cards ---------- */
.status-pill{
  padding:6px 12px;border-radius:999px;font-size:12px;font-weight:600;
  border:1px solid var(--border);background:var(--panel)
}
.status-pill.ok{color:var(--ok);border-color:rgba(61,220,151,.35)}
.status-pill.warn{color:var(--warn);border-color:rgba(255,180,84,.35)}
.pill{display:inline-block;padding:2px 8px;border-radius:999px;font-size:11px;font-weight:600;background:var(--panel-2);border:1px solid var(--border);color:var(--muted)}
.pill.ok{color:var(--ok);border-color:rgba(61,220,151,.35)}
.pill.warn{color:var(--warn);border-color:rgba(255,180,84,.35)}

.cards{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px;margin-bottom:22px}
.card{
  background:linear-gradient(135deg, rgba(108,139,255,.08), rgba(176,108,255,.05));
  border:1px solid var(--border);border-radius:var(--radius);padding:18px 20px
}
.card .k{color:var(--muted);font-size:12px;text-transform:uppercase;letter-spacing:.6px}
.card .v{font-size:26px;font-weight:700;margin-top:6px}

.panel{
  background:var(--panel);border:1px solid var(--border);border-radius:var(--radius);
  padding:22px 24px;margin-bottom:18px
}
.panel.flash{border-color:rgba(61,220,151,.35);background:linear-gradient(180deg,rgba(61,220,151,.08),transparent)}
.panel h2{margin:0 0 14px 0;font-size:16px;font-weight:700}
.panel h3{margin:16px 0 6px;font-size:13px;text-transform:uppercase;letter-spacing:.6px;color:var(--muted)}
.panel p{margin:6px 0 10px;color:var(--text)}
.panel ul{padding-left:20px;margin:6px 0 10px}
.panel li{margin:4px 0}

/* ---------- Tables ---------- */
.tbl{width:100%;border-collapse:collapse}
.tbl th,.tbl td{padding:10px 12px;text-align:left;border-bottom:1px solid var(--border);vertical-align:top}
.tbl th{font-size:11px;letter-spacing:.6px;text-transform:uppercase;color:var(--muted);font-weight:700}
.tbl td.r,.tbl th.r{text-align:right}
.tbl.small th,.tbl.small td{padding:6px 10px;font-size:12px}
.tbl .actions{display:flex;gap:6px;flex-wrap:wrap}
.tbl .actions form{margin:0}

/* ---------- Forms ---------- */
input,textarea,select{
  width:100%;background:var(--bg2);color:var(--text);border:1px solid var(--border);
  border-radius:10px;padding:10px 12px;font-family:inherit;font-size:14px;outline:none
}
textarea{font-family:var(--mono);font-size:13px;resize:vertical}
input:focus,textarea:focus,select:focus{border-color:var(--accent);box-shadow:0 0 0 3px rgba(108,139,255,.18)}
label{display:block;color:var(--muted);font-size:12px;margin-bottom:10px}
label input,label textarea{margin-top:6px}
.form-row{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:12px;align-items:end}
button{
  background:var(--panel-2);color:var(--text);border:1px solid var(--border);border-radius:10px;
  padding:10px 16px;font-weight:600;cursor:pointer;font-family:inherit
}
button:hover{border-color:var(--accent)}
button.primary{
  background:linear-gradient(135deg, var(--accent), var(--accent-2));border:none;color:#fff;
  box-shadow:0 6px 20px rgba(108,139,255,.25)
}
button.primary:hover{filter:brightness(1.1)}
button.small{padding:6px 10px;font-size:12px;font-weight:600}
button.danger{color:var(--danger);border-color:rgba(255,107,129,.35)}
.btn{display:inline-block;padding:10px 16px;border-radius:10px;border:1px solid var(--border);color:var(--text)}

.muted{color:var(--muted)}
.small{font-size:12px}
.r{text-align:right}
.err{color:var(--danger);margin:8px 0}
.kv{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:12px;margin-bottom:10px}
.kv>div{background:var(--bg2);border:1px solid var(--border);padding:10px 14px;border-radius:10px}
.kv span{display:block;font-size:11px;text-transform:uppercase;letter-spacing:.6px}
.code,pre.code{
  background:#0a0f1e;border:1px solid var(--border);border-radius:10px;padding:14px;
  overflow:auto;font-family:var(--mono);font-size:12.5px;color:#cbd5ee;white-space:pre
}
.keybox{background:#0a0f1e;border:1px solid rgba(61,220,151,.35);border-radius:10px;padding:14px;overflow:auto;font-size:13px;color:#9ff5c7;margin-bottom:8px}

/* ---------- Auth ---------- */
.auth-body{background:
  radial-gradient(900px 500px at 50% -10%, rgba(108,139,255,.25), transparent 60%),
  radial-gradient(700px 400px at 50% 100%, rgba(176,108,255,.18), transparent 60%),
  var(--bg)}
.auth-wrap{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:20px}
.auth-card{
  width:100%;max-width:380px;background:rgba(19,27,48,.8);backdrop-filter:blur(12px);
  border:1px solid var(--border);border-radius:16px;padding:32px 28px;
  box-shadow:0 30px 80px rgba(0,0,0,.4)
}
.auth-logo{text-align:center;margin-bottom:22px}
.auth-logo img{width:48px;height:48px}
.auth-logo h1{margin:10px 0 2px;font-size:20px}
.auth-logo em{font-style:normal;background:linear-gradient(90deg,var(--accent),var(--accent-2));-webkit-background-clip:text;background-clip:text;color:transparent;font-weight:800;margin-left:4px}
.auth-card label{margin-bottom:14px}
.auth-card button{width:100%;margin-top:6px}

/* ---------- Chat ---------- */
.chat-main{padding:0}
.chat-wrap{display:flex;height:100vh}
.chat-list{
  width:260px;flex:0 0 260px;border-right:1px solid var(--border);
  background:var(--bg2);display:flex;flex-direction:column;padding:14px 10px;gap:10px
}
.chat-list-top{display:flex;gap:8px}
.chat-list ul{list-style:none;padding:0;margin:0;overflow:auto;flex:1;display:flex;flex-direction:column;gap:2px}
.chat-list li{display:flex;align-items:center;gap:4px;border-radius:8px;padding:2px}
.chat-list li a{flex:1;padding:8px 10px;border-radius:8px;color:var(--muted);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-size:13px}
.chat-list li a:hover{color:var(--text);background:rgba(255,255,255,.04);text-decoration:none}
.chat-list li.active a{background:linear-gradient(135deg,rgba(108,139,255,.18),rgba(176,108,255,.12));color:var(--text)}
.chat-list li .del{background:none;border:none;color:var(--muted);cursor:pointer;padding:4px 8px;font-size:16px;opacity:0;transition:opacity .15s}
.chat-list li:hover .del{opacity:1}
.chat-list li .del:hover{color:var(--danger)}

.chat-body{flex:1;display:flex;flex-direction:column;min-width:0}
.chat-head{display:flex;align-items:center;gap:12px;padding:14px 24px;border-bottom:1px solid var(--border);background:rgba(255,255,255,.015)}
.chat-title{flex:1;background:transparent;border:1px solid transparent;padding:6px 10px;font-size:16px;font-weight:700}
.chat-title:hover,.chat-title:focus{border-color:var(--border);background:var(--bg2)}
.chat-head label{display:flex;align-items:center;gap:6px;margin:0}
.chat-head label input{width:80px;padding:6px 8px;margin:0}
.spacer{flex:1}

.messages{flex:1;overflow:auto;padding:24px 28px;display:flex;flex-direction:column;gap:18px;max-width:900px;margin:0 auto;width:100%}
.msg{display:flex;flex-direction:column;gap:6px;padding:14px 16px;border-radius:14px;border:1px solid var(--border);background:var(--panel);word-wrap:break-word;overflow-wrap:anywhere}
.msg.user{background:linear-gradient(135deg,rgba(108,139,255,.12),rgba(176,108,255,.08));align-self:flex-end;max-width:85%}
.msg.assistant{align-self:flex-start;max-width:95%}
.msg .role{font-size:11px;text-transform:uppercase;letter-spacing:.6px;color:var(--muted);font-weight:700}
.msg .content{font-size:14.5px;line-height:1.65}
.msg .content > *:first-child{margin-top:0}
.msg .content > *:last-child{margin-bottom:0}
.msg .content p{margin:.5em 0}
.msg .content h1,.msg .content h2,.msg .content h3,.msg .content h4{margin:1em 0 .4em;line-height:1.25;font-weight:700}
.msg .content h1{font-size:1.35em}
.msg .content h2{font-size:1.2em}
.msg .content h3{font-size:1.08em}
.msg .content h4{font-size:1em;color:var(--muted)}
.msg .content ul,.msg .content ol{padding-left:22px;margin:.5em 0}
.msg .content li{margin:.2em 0}
.msg .content li>p{margin:.2em 0}
.msg .content blockquote{margin:.6em 0;padding:.2em 12px;border-left:3px solid var(--accent);color:var(--muted);background:rgba(108,139,255,.06);border-radius:0 8px 8px 0}
.msg .content code{font-family:var(--mono);font-size:.92em;background:#0a0f1e;border:1px solid var(--border);border-radius:6px;padding:1px 6px;color:#cfe2ff}
.msg .content pre{background:#0a0f1e;border:1px solid var(--border);border-radius:10px;padding:12px 14px;overflow:auto;margin:.6em 0}
.msg .content pre code{background:transparent;border:none;padding:0;color:#cfe2ff;font-size:12.5px;line-height:1.55;white-space:pre;display:block}
.msg .content a{color:var(--accent);text-decoration:underline}
.msg .content hr{border:none;border-top:1px solid var(--border);margin:1em 0}
.msg .content table{border-collapse:collapse;margin:.6em 0;font-size:13px}
.msg .content table th,.msg .content table td{border:1px solid var(--border);padding:6px 10px;text-align:left}
.msg .content table th{background:var(--panel-2);font-weight:700}
.msg .content img{max-width:100%;border-radius:8px}
.msg .content strong{color:#fff}
.msg .content em{color:#dbe3f8}
.msg .meta{margin-top:4px}
.msg.assistant.loading .content::after{content:'▍';animation:blink 1s step-start infinite;color:var(--accent)}
@keyframes blink{50%{opacity:0}}
.reasoning{margin-top:4px;background:var(--bg2);border:1px solid var(--border);border-radius:8px;padding:8px 10px}
.reasoning summary{cursor:pointer;color:var(--muted);font-size:11px;text-transform:uppercase;letter-spacing:.5px}
.reasoning pre{margin:8px 0 0;font-size:12px;color:#a9b6d6;white-space:pre-wrap}

.composer{padding:16px 28px 22px;border-top:1px solid var(--border);max-width:900px;margin:0 auto;width:100%}
.composer textarea{min-height:80px}
.composer-actions{display:flex;align-items:center;justify-content:space-between;margin-top:8px;gap:10px}
.bigdata{margin-bottom:10px;border:1px dashed var(--border);border-radius:10px;padding:8px 12px;background:var(--bg2)}
.bigdata summary{cursor:pointer;color:var(--muted);font-size:12px}
.bigdata textarea{margin-top:8px;min-height:160px}

.chat-empty{flex:1;display:flex;align-items:center;justify-content:center;text-align:center}
.chat-empty .center img{width:56px;height:56px;margin-bottom:10px}
.chat-empty h2{margin:6px 0}

/* ---------- Usage bars ---------- */
.bars{display:flex;align-items:flex-end;gap:6px;height:160px;padding:10px 0 24px;border-bottom:1px solid var(--border);position:relative}
.bar{flex:1;display:flex;flex-direction:column;align-items:center;gap:4px;height:100%;justify-content:flex-end;position:relative}
.bar .fill{width:100%;background:linear-gradient(180deg,var(--accent),var(--accent-2));border-radius:4px 4px 0 0;min-height:2px}
.bar .lbl{font-size:9px;color:var(--muted);position:absolute;bottom:-18px;white-space:nowrap}

/* ---------- Responsive ---------- */
@media(max-width:980px){
  .cards{grid-template-columns:repeat(2,1fr)}
  .sidebar{width:80px;flex:0 0 80px}
  .sidebar nav a span:not(.ico){display:none}
  .brand span{display:none}
  .chat-list{width:220px;flex:0 0 220px}
}