:root{
  --bg:#0e1116; --panel:#151922; --muted:#9aa3b2;
  --fg:#e6ecf3; --pri:#5dd3ff; --pri-2:#1fa2ff;
  --red:#ff5d78; --border:#242a36; --ok:#5dffa7;
  --shadow:0 10px 30px rgba(0,0,0,.35);
  --radius:12px;
  --mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", monospace;
  --sans: Inter, system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, sans-serif;
}
*{box-sizing:border-box}
html,body{height:100%}
body{margin:0;background:linear-gradient(180deg,#0b0e13,#0f131b);color:var(--fg);font-family:var(--sans)}
.page-admin{overflow:auto;min-height:100vh;}
a{color:var(--pri)}
.topbar{position:sticky;top:0;display:flex;align-items:center;justify-content:space-between;padding:12px 18px;background:rgba(15,19,27,.85);backdrop-filter:blur(8px);border-bottom:1px solid var(--border);z-index:10}
.brand{font-weight:700;letter-spacing:.2px}
.menu a{margin-left:14px;color:var(--muted);text-decoration:none}
.menu a.active,.menu a:hover{color:var(--fg)}
.layout{display:grid;grid-template-columns:280px 1fr;gap:16px;padding:16px}
.sidebar{background:var(--panel);border:1px solid var(--border);border-radius:var(--radius);padding:12px;box-shadow:var(--shadow);display:flex;flex-direction:column;min-height:70vh}
.side-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:8px}
.chat-list{list-style:none;padding:0;margin:0;overflow:auto}
.chat-list li{position:relative;display:flex;align-items:center;gap:8px;justify-content:space-between;padding:8px;border-radius:8px;cursor:pointer;color:var(--muted)}
.chat-list li.active,.chat-list li:hover{background:#0f1420;color:var(--fg)}
.chat-title{flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.chat-actions{margin-left:auto;display:flex;align-items:center;gap:6px}
.chat-menu-btn{padding:4px 6px;border-radius:8px;line-height:1}
.chat-menu{position:absolute;right:8px;top:34px;background:var(--panel);border:1px solid var(--border);border-radius:10px;padding:6px;display:none;flex-direction:column;gap:4px;box-shadow:var(--shadow);z-index:5}
.chat-menu.open{display:flex}
.chat-menu-item{background:#131a26;border:1px solid var(--border);color:var(--fg);border-radius:8px;padding:6px 10px;cursor:pointer;text-align:left}
.chat-menu-item:hover{border-color:#3a465f}
.chat-menu-item.danger{background:linear-gradient(135deg,#ff3b62,#ff7a96);border:none;color:black}
.content{display:flex;flex-direction:column;gap:12px}
.messages{flex:1;background:var(--panel);border:1px solid var(--border);border-radius:var(--radius);padding:14px;overflow:auto;box-shadow:var(--shadow);min-height:50vh}
.msg{margin:10px 0;padding:12px 14px;border-radius:10px;line-height:1.55;border:1px solid var(--border)}
.msg.user{background:#101725}
.msg.assistant{background:#0f1b18;border-color:#18362e}
.msg.off-context{opacity:.82;border-style:dashed}
.msg .meta{font-size:12px;color:var(--muted);margin-bottom:6px;display:flex;align-items:center;justify-content:space-between;gap:8px;flex-wrap:wrap}
.meta-left{display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.meta-info{color:var(--muted)}
.meta-actions{display:flex;align-items:center;gap:6px}
.chip-btn{background:#101725;border:1px solid var(--border);color:var(--fg);border-radius:999px;padding:4px 10px;font-size:12px;cursor:pointer}
.chip-btn.off{opacity:.7;border-style:dashed;color:var(--muted)}
.chip-btn.context-start{background:#122031}
.chip-btn:disabled{opacity:.5;cursor:not-allowed}
.msg pre{background:#0a0d13;border:1px solid #1c2330;border-radius:8px;padding:10px;overflow:auto;font-family:var(--mono);font-size:13px}
.msg code{font-family:var(--mono);background:#0a0d13;padding:2px 4px;border-radius:6px;border:1px solid #1c2330}
.composer{background:var(--panel);border:1px solid var(--border);border-radius:var(--radius);padding:12px;box-shadow:var(--shadow)}
#input{width:100%;resize:vertical;border:1px solid var(--border);border-radius:10px;background:#0b0f17;color:var(--fg);padding:12px;font-family:var(--mono)}
.composer-actions{display:flex;align-items:center;justify-content:space-between;margin-top:8px}
.ddz{position:relative;border:1px dashed #2a3447;border-radius:10px;color:var(--muted);padding:10px;margin-bottom:8px;text-align:center;background:#0b0f17}
.ddz input[type=file]{position:absolute;inset:0;opacity:0;cursor:pointer}
.attached{display:flex;gap:8px;flex-wrap:wrap;color:var(--muted);font-size:13px}
.btn{background:#131a26;border:1px solid var(--border);color:var(--fg);border-radius:10px;padding:8px 12px;cursor:pointer}
.btn:hover{border-color:#33415a}
.btn.primary{background:linear-gradient(135deg,var(--pri-2),var(--pri));border:none;color:black;font-weight:700}
.btn.small{padding:6px 10px;border-radius:8px;font-size:13px}
.btn.danger{background:linear-gradient(135deg,#ff3b62,#ff7a96);border:none;color:black}
.auth{display:grid;place-items:center;height:100%}
.auth-card{width:min(420px,92vw);background:var(--panel);border:1px solid var(--border);border-radius:16px;padding:20px;box-shadow:var(--shadow)}
.stack>*{display:block;margin:8px 0}
label{color:var(--muted);font-size:14px}
input,textarea{width:100%;background:#0b0f17;border:1px solid var(--border);border-radius:10px;color:var(--fg);padding:10px}
.alert{background:#0a1220;border:1px solid #223354;border-radius:10px;padding:10px;margin:10px 0}
.alert-error{background:#1f0b12;border-color:#522232;color:#ffb3c2}
.table{width:100%;border-collapse:collapse}
.table th,.table td{padding:8px;border-bottom:1px solid var(--border);text-align:left}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.grid5{display:grid;grid-template-columns:1.2fr 2fr .6fr auto auto;gap:8px;align-items:center}
.grid-menu{display:grid;grid-template-columns:1.2fr 2fr .7fr auto auto 1.4fr auto;gap:8px;align-items:center}
.row{display:flex;align-items:center;gap:8px}
.right{text-align:right}
.admin-grid{display:grid;grid-template-columns:1fr;gap:16px;padding:16px}
.modal{position:fixed;inset:0;background:rgba(0,0,0,.6);display:none;align-items:center;justify-content:center;padding:16px}
.modal[aria-hidden="false"]{display:flex}
.modal-card{width:min(1100px,95vw);max-height:90vh;overflow:auto;background:var(--panel);border:1px solid var(--border);border-radius:16px;box-shadow:var(--shadow);padding:0}
.modal-head{display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--border);padding:12px 16px}
.notes-layout{display:grid;grid-template-columns:300px 1fr;gap:12px;padding:12px}
.note-list{list-style:none;padding:0;margin:0}
.note-list li{padding:8px;border-radius:8px;color:var(--muted);cursor:pointer}
.note-list li.active,.note-list li:hover{background:#0f1420;color:var(--fg)}
.icon{background:transparent;border:1px solid var(--border);border-radius:8px;color:var(--fg);padding:6px 10px;cursor:pointer}
@media (max-width: 980px){
  .layout{grid-template-columns:1fr}
  .sidebar{order:2}
}

/* Notes copy icon */
.copy-btn{border:1px solid var(--border);margin-left:8px;border-radius:8px}
.copy-btn:hover{border-color:#3a465f}

/* Make paragraphs wrap nicely even for long code/text */
.msg p{word-wrap:break-word; overflow-wrap:anywhere}

/* === Sticky layout: sidebar fixed, content scrolls === */
:root{ --topbar-h: 56px; }

html, body { height: 100%; }
body { overflow: hidden; } /* prevent page scroll; we scroll inside panels */

.topbar { min-height: var(--topbar-h); }

.layout{
  height: calc(100vh - var(--topbar-h));
  display:grid; grid-template-columns:300px 1fr; gap:16px; padding:16px;
}

.sidebar{
  background:var(--panel); border:1px solid var(--border); border-radius:var(--radius);
  padding:12px; box-shadow:var(--shadow);
  display:flex; flex-direction:column; overflow:hidden; /* sidebar itself stays */
  min-height: calc(100vh - var(--topbar-h) - 32px);
}

.sidebar .list-wrap{ flex:1; overflow:auto; }
.sidebar .side-foot{ padding-top:8px; margin-top:8px; border-top:1px solid var(--border); }
.sidebar .side-foot .files-link{ display:block; padding:8px; border-radius:8px; color:var(--muted); cursor:pointer; text-decoration:none; }
.sidebar .side-foot .files-link:hover{ background:#0f1420; color:var(--fg); }

.content{ display:flex; flex-direction:column; overflow:hidden; }
.messages{ flex:1; overflow:auto; } /* chat/notes stream scrolls */

/* Copy button consistent look */
.copy-btn{border:1px solid var(--border); margin-left:8px; border-radius:8px; padding:4px 8px; cursor:pointer; background:#131a26; color:var(--fg);}
.copy-btn:hover{border-color:#3a465f}

/* Ensure long words / code blocks don’t blow layout */
.msg p{ word-wrap:break-word; overflow-wrap:anywhere; }
.msg pre{ max-width:100%; overflow:auto; }

/* Terminal page */
.terminal-main{
  display:flex;
  flex-direction:column;
  gap:10px;
  flex:1;
  min-height:0;
}
.terminal-head{
  display:flex;
  align-items:center;
  justify-content:space-between;
  background:var(--panel);
  border:1px solid var(--border);
  border-radius:var(--radius);
  padding:8px 12px;
  box-shadow:var(--shadow);
}
.terminal-head #term-active-title{
  font-weight:500;
}
.terminal-output{
  flex:1;
  background:var(--panel);
  border:1px solid var(--border);
  border-radius:var(--radius);
  padding:10px 12px;
  box-shadow:var(--shadow);
  font-family:var(--mono);
  font-size:13px;
  white-space:pre-wrap;
  overflow:auto;
  min-height:0;
}
.terminal-input-row{
  display:flex;
  align-items:center;
  gap:8px;
}
#terminal-input{
  flex:1;
}
.term-lock-overlay{
  position:absolute;
  inset:0;
  background:rgba(0,0,0,.7);
  display:flex;
  align-items:center;
  justify-content:center;
  z-index:5;
}
.term-lock-card{
  background:var(--panel);
  border:1px solid var(--border);
  border-radius:16px;
  padding:20px;
  box-shadow:var(--shadow);
  width:min(360px,90vw);
}
.content{
  position:relative;
}