*{margin:0;padding:0;box-sizing:border-box}
:root{
  --bg:#08090d;--bg2:#0d1017;--surface:#12151e;--surface2:#1a1e2e;--border:#1e2433;--border-hover:#2a3048;
  --text:#e8ecf4;--text2:#7c8599;--accent:#6366f1;--accent2:#818cf8;--accent-glow:rgba(99,102,241,.12);
  --green:#34d399;--red:#ef4444;--orange:#fb923c;--blue:#60a5fa;--cyan:#22d3ee;--pink:#f472b6;
  --grad1:linear-gradient(135deg,#6366f1,#8b5cf6);
  --radius:10px;--font:'Inter',system-ui,sans-serif;--mono:'JetBrains Mono',monospace;
}
body{font-family:var(--font);background:var(--bg);color:var(--text);min-height:100vh;font-size:14px;line-height:1.6}
a{color:var(--accent2);text-decoration:none}
::-webkit-scrollbar{width:6px}::-webkit-scrollbar-track{background:var(--bg2)}::-webkit-scrollbar-thumb{background:var(--border);border-radius:3px}

/* Layout */
.app{display:grid;grid-template-columns:220px 1fr;min-height:100vh}
.sidebar{background:var(--surface);border-right:1px solid var(--border);display:flex;flex-direction:column;position:sticky;top:0;height:100vh}
.main{padding:28px 36px;overflow-y:auto;height:100vh}

/* Sidebar */
.logo{padding:20px;display:flex;align-items:center;gap:10px;font-size:17px;font-weight:700;border-bottom:1px solid var(--border)}
.logo .icon{font-size:22px}
.logo .text{background:var(--grad1);-webkit-background-clip:text;-webkit-text-fill-color:transparent}
.nav{flex:1;padding:8px;overflow-y:auto}
.nav a{display:flex;align-items:center;gap:10px;padding:9px 14px;border-radius:8px;color:var(--text2);font-size:13px;font-weight:500;transition:all .15s;cursor:pointer}
.nav a:hover{background:var(--surface2);color:var(--text)}
.nav a.active{background:var(--accent-glow);color:var(--accent2)}
.nav-sep{height:1px;background:var(--border);margin:8px 12px}
.sidebar-footer{padding:12px 16px;border-top:1px solid var(--border);font-size:11px;color:var(--text2)}

/* Header */
.page-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:24px}
.page-header h1{font-size:22px;font-weight:700}
.page-header .sub{font-size:13px;color:var(--text2)}

/* Cards & Stats */
.stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:14px;margin-bottom:28px}
.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:18px;transition:border-color .2s}
.card:hover{border-color:var(--border-hover)}
.card-label{font-size:11px;color:var(--text2);text-transform:uppercase;letter-spacing:.8px;margin-bottom:6px;font-weight:600}
.card-value{font-size:26px;font-weight:700}
.card-sub{font-size:11px;color:var(--text2);margin-top:3px}

/* Colors */
.green{color:var(--green)}.red{color:var(--red)}.orange{color:var(--orange)}.blue{color:var(--blue)}.accent{color:var(--accent2)}.cyan{color:var(--cyan)}

/* Forms */
.form-section{margin-bottom:28px}
.form-section h2{font-size:15px;font-weight:600;margin-bottom:14px;display:flex;align-items:center;gap:8px}
.form-row{display:grid;grid-template-columns:160px 1fr;align-items:center;gap:12px;padding:10px 16px;background:var(--surface);border:1px solid var(--border);border-radius:8px;margin-bottom:6px}
.form-label{font-size:12px;color:var(--text2);font-weight:500}
.form-row input,.form-row select,.form-row textarea{width:100%;background:var(--bg2);border:1px solid var(--border);border-radius:6px;padding:8px 12px;color:var(--text);font-size:13px;font-family:var(--font);outline:none;transition:border-color .2s}
.form-row input:focus,.form-row select:focus,.form-row textarea:focus{border-color:var(--accent)}
.form-row textarea{min-height:60px;resize:vertical;font-family:var(--mono);font-size:12px}

/* Buttons */
.btn{padding:8px 18px;border-radius:8px;font-size:13px;font-weight:600;cursor:pointer;border:none;transition:all .2s;font-family:var(--font)}
.btn-primary{background:var(--grad1);color:#fff}
.btn-primary:hover{box-shadow:0 4px 16px rgba(99,102,241,.35);transform:translateY(-1px)}
.btn-outline{background:transparent;border:1px solid var(--border);color:var(--text2)}
.btn-outline:hover{border-color:var(--accent);color:var(--accent2)}
.btn-sm{padding:5px 12px;font-size:12px}
.btn-green{background:#059669;color:#fff}.btn-green:hover{background:#047857}
.btn-red{background:var(--red);color:#fff}.btn-red:hover{opacity:.9}

/* Badges */
.badge{display:inline-block;padding:2px 8px;border-radius:4px;font-size:10px;font-weight:700;text-transform:uppercase;letter-spacing:.5px}
.badge-green{background:rgba(52,211,153,.12);color:var(--green)}
.badge-yellow{background:rgba(250,204,21,.12);color:#facc15}
.badge-blue{background:rgba(96,165,250,.12);color:var(--blue)}
.badge-orange{background:rgba(251,146,60,.12);color:var(--orange)}
.badge-red{background:rgba(239,68,68,.12);color:var(--red)}
.badge-purple{background:rgba(99,102,241,.12);color:var(--accent2)}

/* Tables */
table{width:100%;border-collapse:collapse}
th{text-align:left;font-size:11px;color:var(--text2);text-transform:uppercase;letter-spacing:.5px;padding:8px 12px;border-bottom:1px solid var(--border)}
td{padding:10px 12px;border-bottom:1px solid var(--border);font-size:13px}
tr:hover td{background:rgba(255,255,255,.02)}

/* Chat — 2 Column Messenger Layout */
.chat-layout{display:grid;grid-template-columns:280px 1fr;height:calc(100vh - 80px);border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;background:var(--surface)}
.chat-sidebar{border-right:1px solid var(--border);display:flex;flex-direction:column;background:var(--bg2);overflow:hidden}
.chat-sidebar-header{padding:12px 14px;border-bottom:1px solid var(--border);display:flex;align-items:center;justify-content:space-between}
.chat-sidebar-header h3{font-size:14px;font-weight:600;margin:0}
.chat-list{flex:1;overflow-y:auto;padding:6px}
.chat-list-item{display:flex;align-items:center;gap:10px;padding:10px 12px;border-radius:8px;cursor:pointer;transition:all .15s;margin-bottom:2px}
.chat-list-item:hover{background:var(--surface2)}
.chat-list-item.active{background:var(--accent-glow);border:1px solid rgba(99,102,241,.3)}
.chat-list-icon{font-size:20px;width:36px;height:36px;display:flex;align-items:center;justify-content:center;border-radius:50%;background:var(--surface);flex-shrink:0}
.chat-list-info{flex:1;min-width:0;overflow:hidden}
.chat-list-name{font-size:13px;font-weight:600;color:var(--text);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.chat-list-sub{font-size:11px;color:var(--text2);overflow:hidden;text-overflow:ellipsis;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;line-height:1.4}
.chat-list-badge{font-size:9px;padding:2px 6px;border-radius:4px;font-weight:700;text-transform:uppercase;flex-shrink:0}
.chat-list-sep{padding:6px 14px;font-size:10px;color:var(--text2);text-transform:uppercase;letter-spacing:1px;font-weight:700;margin-top:4px}
.chat-main{display:flex;flex-direction:column;background:var(--bg);overflow:hidden;min-height:0}
.chat-main-header{padding:12px 18px;border-bottom:1px solid var(--border);background:var(--surface);display:flex;align-items:center;justify-content:space-between;gap:12px}
.chat-main-header .chat-target{display:flex;align-items:center;gap:10px}
.chat-main-header .chat-target-icon{font-size:22px}
.chat-main-header .chat-target-name{font-size:15px;font-weight:700}
.chat-main-header .chat-target-sub{font-size:11px;color:var(--text2)}
.chat-messages{flex:1;overflow-y:auto;padding:16px 20px;display:flex;flex-direction:column;gap:10px}
.msg{max-width:72%;padding:10px 14px;border-radius:12px;font-size:13px;line-height:1.55;animation:fadeIn .2s}
.msg-user{align-self:flex-end;background:var(--accent);color:#fff;border-bottom-right-radius:4px}
.msg-bot{align-self:flex-start;background:var(--surface2);border:1px solid var(--border);border-bottom-left-radius:4px;white-space:pre-wrap;font-family:var(--font)}
.msg-agent{align-self:flex-start;background:var(--surface2);border:1px solid var(--border);border-left:3px solid var(--accent);border-bottom-left-radius:4px;white-space:pre-wrap}
.msg-system{align-self:center;font-size:11px;color:var(--text2);font-style:italic}
.chat-input-wrap{display:flex;gap:8px;padding:12px 18px;border-top:1px solid var(--border);background:var(--surface)}
.chat-input-wrap input{flex:1;background:var(--bg2);border:1px solid var(--border);border-radius:8px;padding:11px 16px;color:var(--text);font-size:13px;outline:none}
.chat-input-wrap input:focus{border-color:var(--accent)}
.chat-input-wrap button{background:var(--grad1);color:#fff;border:none;border-radius:8px;padding:11px 20px;font-size:13px;cursor:pointer;font-weight:600}
.typing{color:var(--text2);font-size:12px;padding:0 20px}

/* Channel cards */
.ch-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(320px,1fr));gap:14px}
.ch-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:18px;transition:border-color .2s}
.ch-card:hover{border-color:var(--border-hover)}
.ch-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px}
.ch-name{font-weight:600;font-size:14px;display:flex;align-items:center;gap:8px}
.ch-fields{display:flex;flex-direction:column;gap:6px;margin-bottom:12px}
.ch-fields label{font-size:11px;color:var(--text2);font-weight:500}
.ch-fields input,.ch-fields textarea{width:100%;background:var(--bg2);border:1px solid var(--border);border-radius:6px;padding:7px 10px;color:var(--text);font-size:12px;outline:none;font-family:var(--mono)}
.ch-fields input:focus,.ch-fields textarea:focus{border-color:var(--accent)}
.ch-fields textarea{min-height:50px;resize:vertical}
.ch-actions{display:flex;gap:6px;flex-wrap:wrap}
.toggle{position:relative;width:36px;height:20px;display:inline-block}
.toggle input{opacity:0;width:0;height:0}
.toggle .slider{position:absolute;inset:0;background:var(--border);border-radius:20px;cursor:pointer;transition:.2s}
.toggle .slider::before{content:'';position:absolute;width:16px;height:16px;left:2px;bottom:2px;background:#fff;border-radius:50%;transition:.2s}
.toggle input:checked + .slider{background:var(--accent)}
.toggle input:checked + .slider::before{transform:translateX(16px)}

/* Toast */
.toast{position:fixed;bottom:24px;right:24px;padding:12px 20px;background:var(--surface);border:1px solid var(--border);border-radius:10px;font-size:13px;z-index:999;animation:slideUp .3s;box-shadow:0 8px 32px rgba(0,0,0,.4)}
@keyframes slideUp{from{opacity:0;transform:translateY(12px)}to{opacity:1;transform:translateY(0)}}
@keyframes fadeIn{from{opacity:0;transform:translateY(4px)}to{opacity:1;transform:translateY(0)}}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.4}}
.pulse{animation:pulse 1.5s infinite}

/* Responsive */
@media(max-width:768px){.app{grid-template-columns:1fr}.sidebar{display:none}.main{padding:16px}.form-row{grid-template-columns:1fr}.chat-layout{grid-template-columns:1fr}.chat-sidebar{display:none}}

/* ═══ LIGHT THEME ═══ */
html.light {
  --bg: #f0f2f5;
  --bg2: #e8ebf0;
  --surface: #ffffff;
  --surface2: #f5f6f8;
  --border: #dce0e8;
  --border-hover: #c0c6d4;
  --text: #1a1d26;
  --text2: #6b7280;
  --accent: #5b5bd6;
  --accent2: #6e6ede;
  --accent-glow: rgba(91, 91, 214, 0.08);
  --green: #059669;
  --red: #dc2626;
  --orange: #d97706;
  --blue: #2563eb;
  --cyan: #0891b2;
  --pink: #db2777;
  --grad1: linear-gradient(135deg, #5b5bd6, #7c5ce7);
}
html.light body {
  background: var(--bg);
  color: var(--text);
}
html.light ::-webkit-scrollbar-track { background: var(--bg); }
html.light ::-webkit-scrollbar-thumb { background: var(--border-hover); }
html.light .sidebar { box-shadow: 2px 0 12px rgba(0,0,0,.04); }
html.light .logo .text { background: var(--grad1); -webkit-background-clip: text; -webkit-text-fill-color: transparent; }
html.light .nav a { color: var(--text2); }
html.light .nav a:hover { background: var(--surface2); color: var(--text); }
html.light .nav a.active { background: var(--accent-glow); color: var(--accent); font-weight: 600; }
html.light .card { box-shadow: 0 1px 3px rgba(0,0,0,.06), 0 1px 2px rgba(0,0,0,.04); border-color: var(--border); }
html.light .card:hover { box-shadow: 0 4px 12px rgba(0,0,0,.08); border-color: var(--border-hover); }
html.light .toast { box-shadow: 0 8px 32px rgba(0,0,0,.12); }
html.light .msg-bot { background: var(--surface2); border-color: var(--border); color: var(--text); }
html.light .msg-agent { background: var(--surface2); border-color: var(--border); color: var(--text); }
html.light .chat-main { background: var(--bg); }
html.light .btn-primary { box-shadow: 0 2px 8px rgba(91,91,214,.25); }
html.light .btn-primary:hover { box-shadow: 0 4px 16px rgba(91,91,214,.35); }
html.light tr:hover td { background: rgba(0,0,0,.02); }
html.light .ch-card { box-shadow: 0 1px 3px rgba(0,0,0,.06); }

/* Theme toggle button */
.theme-toggle {
  display: flex; align-items: center; gap: 6px; cursor: pointer;
  padding: 4px 10px; border-radius: 6px; border: 1px solid var(--border);
  background: var(--surface2); color: var(--text2); font-size: 11px;
  transition: all .2s; margin-bottom: 6px;
}
.theme-toggle:hover { border-color: var(--accent); color: var(--accent2); }