/* ===== Reset & Base ===== */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
:root{
  --bg:#0b0e14;
  --bg-card:#12151e;
  --bg-card-hover:#181c28;
  --bg-sidebar:#0f1219;
  --bg-topbar:#0d1017;
  --border:#1e2235;
  --border-light:#252a3a;
  --text:#e2e8f0;
  --text-dim:#8892a8;
  --text-muted:#5a6478;
  --primary:#6366f1;
  --primary-light:#818cf8;
  --primary-dark:#4f46e5;
  --success:#22c55e;
  --success-bg:rgba(34,197,94,.12);
  --warning:#f59e0b;
  --warning-bg:rgba(245,158,11,.12);
  --danger:#ef4444;
  --danger-bg:rgba(239,68,68,.12);
  --info:#3b82f6;
  --info-bg:rgba(59,130,246,.12);
  --purple:#a855f7;
  --purple-bg:rgba(168,85,247,.12);
  --lobster:#e74c3c;
  --sidebar-w:240px;
  --topbar-h:56px;
  --radius:10px;
  --radius-sm:6px;
  --shadow:0 4px 24px rgba(0,0,0,.35);
  --transition:all .2s ease;
}
html{font-size:14px;scroll-behavior:smooth}
body{
  font-family:'Inter','Noto Sans SC',system-ui,-apple-system,sans-serif;
  background:var(--bg);color:var(--text);
  min-height:100vh;overflow-x:hidden;
}
a{color:inherit;text-decoration:none}
input,select,button{font-family:inherit;font-size:inherit}
code{
  background:rgba(99,102,241,.12);color:var(--primary-light);
  padding:2px 8px;border-radius:4px;font-size:.85em;
  font-family:'SF Mono','Fira Code',monospace;word-break:break-all;
}

/* ===== Top Bar ===== */
.top-bar{
  position:fixed;top:0;left:0;right:0;height:var(--topbar-h);
  background:var(--bg-topbar);border-bottom:1px solid var(--border);
  display:flex;align-items:center;justify-content:space-between;
  padding:0 24px;z-index:100;
  backdrop-filter:blur(12px);
}
.top-bar-left,.top-bar-right{display:flex;align-items:center;gap:12px}
.top-bar-center{position:absolute;left:50%;transform:translateX(-50%)}
.logo{display:flex;align-items:center;gap:10px}
.logo-icon{font-size:24px}
.logo-text{font-size:16px;font-weight:700;letter-spacing:-.02em}
.logo-sub{font-weight:400;color:var(--text-dim);font-size:13px;margin-left:4px}
.server-badge{
  display:flex;align-items:center;gap:8px;
  background:var(--bg-card);border:1px solid var(--border);
  padding:6px 14px;border-radius:20px;font-size:12px;color:var(--text-dim);
}
.status-dot{
  width:8px;height:8px;border-radius:50%;
  background:var(--success);
  box-shadow:0 0 8px var(--success);
  animation:pulse 2s infinite;
}
.status-dot.offline{background:var(--danger);box-shadow:0 0 8px var(--danger)}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.5}}
.btn-icon{
  width:36px;height:36px;border-radius:8px;border:1px solid var(--border);
  background:transparent;color:var(--text-dim);cursor:pointer;
  display:flex;align-items:center;justify-content:center;
  transition:var(--transition);
}
.btn-icon:hover{background:var(--bg-card);color:var(--text);border-color:var(--border-light)}
.admin-avatar{
  width:32px;height:32px;border-radius:8px;
  background:linear-gradient(135deg,var(--primary),var(--purple));
  display:flex;align-items:center;justify-content:center;
  font-size:13px;font-weight:600;color:#fff;
}

/* ===== Sidebar ===== */
.sidebar{
  position:fixed;top:var(--topbar-h);left:0;bottom:0;
  width:var(--sidebar-w);background:var(--bg-sidebar);
  border-right:1px solid var(--border);
  display:flex;flex-direction:column;z-index:90;
  padding:12px;
}
.sidebar-nav{flex:1;display:flex;flex-direction:column;gap:2px}
.nav-item{
  display:flex;align-items:center;gap:12px;
  padding:10px 14px;border-radius:var(--radius-sm);
  color:var(--text-dim);font-size:13px;font-weight:500;
  transition:var(--transition);cursor:pointer;
}
.nav-item:hover{background:var(--bg-card);color:var(--text)}
.nav-item.active{
  background:rgba(99,102,241,.12);color:var(--primary-light);
  font-weight:600;
}
.nav-item.active svg{stroke:var(--primary-light)}
.sidebar-footer{
  padding:16px 14px;border-top:1px solid var(--border);
}
.system-info{display:flex;flex-direction:column;gap:8px}
.info-row{display:flex;justify-content:space-between;align-items:center;font-size:12px;color:var(--text-dim)}
.tag{
  padding:2px 8px;border-radius:10px;font-size:11px;font-weight:600;
  display:inline-block;
}
.tag-green{background:var(--success-bg);color:var(--success)}
.tag-blue{background:var(--info-bg);color:var(--info)}
.tag-yellow{background:var(--warning-bg);color:var(--warning)}
.tag-red{background:var(--danger-bg);color:var(--danger)}
.tag-purple{background:var(--purple-bg);color:var(--purple)}
.tag-gray{background:rgba(255,255,255,.06);color:var(--text-muted)}

/* ===== Main Content ===== */
.main-content{
  margin-left:var(--sidebar-w);margin-top:var(--topbar-h);
  padding:28px 32px;min-height:calc(100vh - var(--topbar-h));
}
.page{display:none}
.page.active{display:block;animation:fadeIn .3s ease}
@keyframes fadeIn{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}

.page-header{margin-bottom:24px}
.page-header h1{font-size:24px;font-weight:700;letter-spacing:-.02em}
.page-desc{color:var(--text-dim);font-size:13px;margin-top:4px}
.page-actions{display:flex;gap:8px;margin-top:12px}

/* ===== Buttons ===== */
.btn{
  display:inline-flex;align-items:center;gap:6px;
  padding:8px 16px;border-radius:var(--radius-sm);
  font-size:13px;font-weight:600;cursor:pointer;
  border:none;transition:var(--transition);
}
.btn-primary{background:var(--primary);color:#fff}
.btn-primary:hover{background:var(--primary-dark);transform:translateY(-1px);box-shadow:0 4px 12px rgba(99,102,241,.3)}
.btn-outline{background:transparent;color:var(--text-dim);border:1px solid var(--border)}
.btn-outline:hover{background:var(--bg-card);color:var(--text);border-color:var(--border-light)}
.btn-sm{padding:5px 12px;font-size:12px}
.btn-danger{background:var(--danger);color:#fff}
.btn-danger:hover{background:#dc2626}
.btn-success{background:var(--success);color:#fff}

/* ===== Stats Grid ===== */
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-bottom:24px}
.stat-card{
  background:var(--bg-card);border:1px solid var(--border);
  border-radius:var(--radius);padding:20px;
  display:flex;align-items:center;gap:16px;
  transition:var(--transition);
}
.stat-card:hover{border-color:var(--border-light);transform:translateY(-2px);box-shadow:var(--shadow)}
.stat-icon{font-size:32px}
.stat-value{font-size:28px;font-weight:800;letter-spacing:-.03em}
.stat-label{font-size:12px;color:var(--text-dim);margin-top:2px}
.stat-primary .stat-value{color:var(--primary-light)}
.stat-success .stat-value{color:var(--success)}
.stat-warning .stat-value{color:var(--warning)}
.stat-info .stat-value{color:var(--info)}

/* ===== Dashboard Grid ===== */
.dashboard-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.card-panel{
  background:var(--bg-card);border:1px solid var(--border);
  border-radius:var(--radius);padding:20px;
}
.panel-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:16px}
.panel-header h3{font-size:15px;font-weight:600}
.live-dot{
  width:8px;height:8px;border-radius:50%;background:var(--success);
  animation:pulse 2s infinite;
}

/* ===== Activity Feed ===== */
.activity-feed{max-height:360px;overflow-y:auto;display:flex;flex-direction:column;gap:8px}
.activity-feed::-webkit-scrollbar{width:4px}
.activity-feed::-webkit-scrollbar-thumb{background:var(--border);border-radius:2px}
.activity-item{
  display:flex;align-items:flex-start;gap:12px;
  padding:10px 12px;border-radius:var(--radius-sm);
  background:rgba(255,255,255,.02);
  transition:var(--transition);
}
.activity-item:hover{background:var(--bg-card-hover)}
.activity-icon{
  width:32px;height:32px;border-radius:8px;
  display:flex;align-items:center;justify-content:center;
  font-size:16px;flex-shrink:0;
}
.activity-text{flex:1;font-size:13px;line-height:1.5}
.activity-text strong{color:var(--text);font-weight:600}
.activity-time{font-size:11px;color:var(--text-muted);white-space:nowrap}

/* ===== Chart ===== */
.chart-area{height:320px;position:relative}
canvas{width:100%!important;height:100%!important}

/* ===== Filter Bar ===== */
.filter-bar{
  display:flex;gap:10px;align-items:center;
  margin-bottom:16px;flex-wrap:wrap;
}
.search-input{
  flex:1;min-width:200px;padding:9px 14px;
  background:var(--bg-card);border:1px solid var(--border);
  border-radius:var(--radius-sm);color:var(--text);
  outline:none;transition:var(--transition);
}
.search-input:focus{border-color:var(--primary);box-shadow:0 0 0 3px rgba(99,102,241,.15)}
.search-input::placeholder{color:var(--text-muted)}
.filter-select{
  padding:9px 14px;background:var(--bg-card);border:1px solid var(--border);
  border-radius:var(--radius-sm);color:var(--text);outline:none;
  cursor:pointer;appearance:auto;
}
.filter-date{
  padding:9px 14px;background:var(--bg-card);border:1px solid var(--border);
  border-radius:var(--radius-sm);color:var(--text);outline:none;
}
.filter-sep{color:var(--text-muted);font-size:13px}

/* ===== Data Table ===== */
.table-wrapper{overflow-x:auto}
.data-table{width:100%;border-collapse:collapse}
.data-table th,.data-table td{
  padding:12px 14px;text-align:left;border-bottom:1px solid var(--border);
  font-size:13px;white-space:nowrap;
}
.data-table th{
  color:var(--text-muted);font-weight:600;font-size:12px;
  text-transform:uppercase;letter-spacing:.04em;
  background:var(--bg-card);position:sticky;top:0;
}
.data-table tbody tr{transition:var(--transition)}
.data-table tbody tr:hover{background:var(--bg-card-hover)}
.data-table input[type="checkbox"]{accent-color:var(--primary)}
.employee-cell{display:flex;align-items:center;gap:10px}
.emp-avatar{
  width:32px;height:32px;border-radius:8px;
  background:linear-gradient(135deg,var(--primary),var(--purple));
  display:flex;align-items:center;justify-content:center;
  font-size:12px;font-weight:700;color:#fff;flex-shrink:0;
}
.emp-name{font-weight:600}
.emp-email{font-size:11px;color:var(--text-muted)}
.actions-cell{display:flex;gap:6px}
.action-btn{
  padding:4px 10px;border-radius:4px;font-size:11px;font-weight:600;
  border:1px solid var(--border);background:transparent;color:var(--text-dim);
  cursor:pointer;transition:var(--transition);
}
.action-btn:hover{background:var(--bg-card);color:var(--text)}
.action-btn.edit:hover{border-color:var(--primary);color:var(--primary)}
.action-btn.suspend:hover{border-color:var(--warning);color:var(--warning)}
.action-btn.remove:hover{border-color:var(--danger);color:var(--danger)}

/* ===== Quota ===== */
.quota-overview{margin-bottom:24px}
.quota-card-big{
  background:var(--bg-card);border:1px solid var(--border);
  border-radius:var(--radius);padding:28px;
  display:flex;align-items:center;gap:40px;
}
.quota-ring-wrap{position:relative;width:140px;height:140px;flex-shrink:0}
.quota-ring{width:100%;height:100%}
.quota-ring-text{
  position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);
  text-align:center;
}
.quota-pct{font-size:24px;font-weight:800;color:var(--primary-light)}
.quota-label{font-size:11px;color:var(--text-muted)}
.quota-details h3{font-size:16px;font-weight:700;margin-bottom:12px}
.quota-stat{display:flex;justify-content:space-between;gap:40px;padding:6px 0;font-size:13px}
.quota-stat span{color:var(--text-dim)}
.quota-stat strong{color:var(--text)}
.quota-config{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);padding:20px}
.quota-table-wrap{margin-top:12px}
.quota-input{
  width:100px;padding:5px 8px;background:var(--bg);border:1px solid var(--border);
  border-radius:4px;color:var(--text);text-align:right;
}
.quota-input:focus{border-color:var(--primary);outline:none}
.quota-bar{
  width:120px;height:6px;background:var(--border);border-radius:3px;
  overflow:hidden;display:inline-block;vertical-align:middle;margin-right:6px;
}
.quota-bar-fill{height:100%;border-radius:3px;transition:width .3s ease}
.qb-green{background:var(--success)}
.qb-yellow{background:var(--warning)}
.qb-red{background:var(--danger)}

/* ===== Audit ===== */
.audit-list{display:flex;flex-direction:column;gap:10px}
.audit-item{
  background:var(--bg-card);border:1px solid var(--border);
  border-radius:var(--radius);padding:16px 20px;
  cursor:pointer;transition:var(--transition);
}
.audit-item:hover{border-color:var(--border-light);transform:translateY(-1px);box-shadow:var(--shadow)}
.audit-top{display:flex;justify-content:space-between;align-items:center;margin-bottom:8px}
.audit-user{display:flex;align-items:center;gap:10px}
.audit-user-avatar{
  width:28px;height:28px;border-radius:6px;
  background:linear-gradient(135deg,var(--info),var(--primary));
  display:flex;align-items:center;justify-content:center;
  font-size:11px;font-weight:700;color:#fff;
}
.audit-user-name{font-weight:600;font-size:14px}
.audit-meta{display:flex;gap:8px;align-items:center}
.audit-preview{
  font-size:13px;color:var(--text-dim);line-height:1.5;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.audit-stats{display:flex;gap:16px;margin-top:8px;font-size:12px;color:var(--text-muted)}

/* ===== Lobster Grid ===== */
.lobster-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:16px}
.lobster-card{
  background:var(--bg-card);border:1px solid var(--border);
  border-radius:var(--radius);padding:24px;text-align:center;
  transition:var(--transition);
  position:relative;overflow:hidden;
}
.lobster-card:hover{border-color:var(--lobster);transform:translateY(-3px);box-shadow:0 8px 32px rgba(231,76,60,.15)}
.lobster-card::before{
  content:'';position:absolute;top:0;left:0;right:0;height:3px;
  background:linear-gradient(90deg,var(--lobster),var(--warning));
  opacity:0;transition:opacity .3s;
}
.lobster-card:hover::before{opacity:1}
.lobster-emoji{font-size:56px;margin-bottom:12px;display:block}
.lobster-name{font-size:18px;font-weight:700;margin-bottom:4px;color:var(--lobster)}
.lobster-owner{font-size:12px;color:var(--text-dim);margin-bottom:12px}
.lobster-stats{
  display:flex;justify-content:space-around;padding-top:12px;
  border-top:1px solid var(--border);font-size:12px;
}
.lobster-stat-val{font-size:16px;font-weight:700;color:var(--text)}
.lobster-stat-lbl{color:var(--text-muted);margin-top:2px}
.lobster-level{
  position:absolute;top:12px;right:12px;
  padding:3px 10px;border-radius:12px;font-size:11px;font-weight:700;
}
.isolation-banner{
  display:flex;align-items:center;gap:16px;
  background:rgba(99,102,241,.08);border:1px solid rgba(99,102,241,.2);
  border-radius:var(--radius);padding:16px 20px;margin-top:12px;
}
.isolation-icon{font-size:28px}
.isolation-text{display:flex;flex-direction:column;gap:4px;font-size:13px}
.isolation-text strong{color:var(--primary-light);font-size:14px}
.isolation-text span{color:var(--text-dim)}
.lobster-session-id{font-size:10px;color:var(--text-muted);word-break:break-all;margin-top:4px;font-family:monospace}
.lobster-memory-badge{
  display:inline-flex;align-items:center;gap:4px;
  padding:2px 8px;border-radius:8px;font-size:10px;
  background:rgba(34,197,94,.1);color:var(--success);
  margin-top:6px;
}
.lobster-isolation-dot{width:6px;height:6px;border-radius:50%;background:var(--success)}

/* ===== Settings ===== */
.settings-sections{display:flex;flex-direction:column;gap:20px}
.settings-section{
  background:var(--bg-card);border:1px solid var(--border);
  border-radius:var(--radius);padding:24px;
}
.settings-section h3{font-size:16px;font-weight:700;margin-bottom:16px}
.setting-row{
  display:flex;justify-content:space-between;align-items:center;
  padding:12px 0;border-bottom:1px solid var(--border);
}
.setting-row:last-child{border-bottom:none}
.setting-name{font-weight:600;font-size:13px}
.setting-desc{font-size:12px;color:var(--text-muted);margin-top:2px}
.setting-value{text-align:right;max-width:50%}
.setting-select{min-width:180px}

/* ===== Modal ===== */
.modal-overlay{
  position:fixed;top:0;left:0;right:0;bottom:0;
  background:rgba(0,0,0,.6);backdrop-filter:blur(4px);
  display:none;align-items:center;justify-content:center;
  z-index:200;
}
.modal-overlay.show{display:flex}
.modal{
  background:var(--bg-card);border:1px solid var(--border);
  border-radius:var(--radius);width:460px;max-width:90vw;
  max-height:85vh;overflow-y:auto;
  animation:modalIn .25s ease;
}
.modal-lg{width:680px}
@keyframes modalIn{from{opacity:0;transform:scale(.95)}to{opacity:1;transform:scale(1)}}
.modal-header{
  display:flex;justify-content:space-between;align-items:center;
  padding:20px 24px;border-bottom:1px solid var(--border);
}
.modal-header h3{font-size:16px;font-weight:700}
.modal-close{
  width:28px;height:28px;border:none;background:transparent;
  color:var(--text-dim);font-size:20px;cursor:pointer;border-radius:4px;
  display:flex;align-items:center;justify-content:center;
}
.modal-close:hover{background:var(--bg-card-hover);color:var(--text)}
.modal-body{padding:20px 24px}
.modal-footer{
  padding:16px 24px;border-top:1px solid var(--border);
  display:flex;justify-content:flex-end;gap:8px;
}
.form-group{margin-bottom:14px}
.form-group label{display:block;font-size:12px;font-weight:600;color:var(--text-dim);margin-bottom:6px}
.form-input{
  width:100%;padding:9px 14px;background:var(--bg);
  border:1px solid var(--border);border-radius:var(--radius-sm);
  color:var(--text);outline:none;
}
.form-input:focus{border-color:var(--primary)}

/* ===== Chat Detail Modal ===== */
.chat-detail-body{max-height:60vh;overflow-y:auto}
.chat-msg{display:flex;gap:12px;margin-bottom:16px}
.chat-msg.user{flex-direction:row}
.chat-msg.assistant{flex-direction:row}
.chat-bubble{
  max-width:80%;padding:12px 16px;border-radius:12px;font-size:13px;line-height:1.6;
}
.chat-msg.user .chat-bubble{
  background:var(--primary);color:#fff;border-bottom-right-radius:4px;
  margin-left:auto;
}
.chat-msg.assistant .chat-bubble{
  background:var(--bg);border:1px solid var(--border);border-bottom-left-radius:4px;
}
.chat-avatar{
  width:28px;height:28px;border-radius:6px;flex-shrink:0;
  display:flex;align-items:center;justify-content:center;
  font-size:14px;
}
.chat-msg.user .chat-avatar{background:var(--primary);color:#fff;order:1}
.chat-msg.assistant .chat-avatar{background:var(--bg-card);border:1px solid var(--border)}

/* ===== Toast ===== */
.toast{
  position:fixed;bottom:24px;right:24px;
  padding:12px 20px;border-radius:var(--radius-sm);
  font-size:13px;font-weight:600;color:#fff;
  z-index:300;transform:translateY(100px);opacity:0;
  transition:all .3s ease;
}
.toast.show{transform:translateY(0);opacity:1}
.toast-success{background:var(--success)}
.toast-error{background:var(--danger)}
.toast-info{background:var(--info)}

/* ===== Responsive ===== */
@media(max-width:1200px){.stats-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:900px){
  .sidebar{width:60px;padding:8px}
  .nav-item span,.sidebar-footer,.logo-text{display:none}
  .nav-item{justify-content:center;padding:10px}
  .main-content{margin-left:60px;padding:20px 16px}
  .dashboard-grid{grid-template-columns:1fr}
  .top-bar-center{display:none}
  .quota-card-big{flex-direction:column}
}
@media(max-width:600px){
  .stats-grid{grid-template-columns:1fr}
  .filter-bar{flex-direction:column}
  .lobster-grid{grid-template-columns:1fr}
}