/* ─── Design Tokens ─────────────────────────────────────── */
:root {
  --font: 'Inter', -apple-system, sans-serif;
  --bg: #0b0d14; --bg-card: #12141f; --bg-elevated: #181b28;
  --bg-hover: #1e2235; --bg-input: #141724;
  --border: #1e2235; --border-focus: #6366f1;
  --text: #e2e8f0; --text-muted: #64748b; --text-dim: #475569;
  --primary: #6366f1; --primary-hover: #818cf8; --primary-glow: rgba(99,102,241,.15);
  --danger: #ef4444; --danger-hover: #f87171;
  --success: #10b981; --warning: #f59e0b; --info: #3b82f6;
  --sidebar-w: 240px; --topbar-h: 56px;
  --radius: 10px; --radius-sm: 6px; --radius-lg: 14px;
  --shadow: 0 4px 24px rgba(0,0,0,.25);
  --transition: .2s cubic-bezier(.4,0,.2,1);
}
[data-theme="light"] {
  --bg: #f1f5f9; --bg-card: #fff; --bg-elevated: #f8fafc;
  --bg-hover: #e2e8f0; --bg-input: #fff;
  --border: #e2e8f0; --text: #0f172a; --text-muted: #64748b; --text-dim: #94a3b8;
  --shadow: 0 4px 24px rgba(0,0,0,.08);
}

/* ─── Reset ─────────────────────────────────────────────── */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{font-size:14px;-webkit-font-smoothing:antialiased}
body{font-family:var(--font);background:var(--bg);color:var(--text);display:flex;min-height:100vh;overflow:hidden}
a{color:inherit;text-decoration:none}
button{cursor:pointer;font-family:inherit}
input,select,textarea{font-family:inherit}

/* ─── Sidebar ───────────────────────────────────────────── */
.sidebar{width:var(--sidebar-w);background:var(--bg-card);border-right:1px solid var(--border);display:flex;flex-direction:column;position:fixed;top:0;left:0;bottom:0;z-index:100;transition:transform var(--transition)}
.sidebar-brand{display:flex;align-items:center;gap:10px;padding:16px 20px;border-bottom:1px solid var(--border)}
.brand-icon{font-size:24px;width:36px;height:36px;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,var(--primary),#a855f7);border-radius:var(--radius-sm);filter:drop-shadow(0 0 8px var(--primary-glow))}
.brand-text{font-size:18px;font-weight:700;background:linear-gradient(135deg,var(--primary),#a855f7);-webkit-background-clip:text;-webkit-text-fill-color:transparent}
.sidebar-nav{flex:1;padding:12px 8px;display:flex;flex-direction:column;gap:2px}
.sidebar-footer{padding:8px;border-top:1px solid var(--border)}
.sidebar-divider{display:none}
.nav-item{display:flex;align-items:center;gap:10px;padding:10px 12px;border-radius:var(--radius-sm);color:var(--text-muted);transition:all var(--transition);font-weight:500;font-size:.9rem;border:none;background:none;width:100%}
.nav-item:hover{background:var(--bg-hover);color:var(--text)}
.nav-item.active{background:var(--primary-glow);color:var(--primary)}
.nav-item.active svg{stroke:var(--primary)}

/* ─── Main Content ──────────────────────────────────────── */
.main-content{margin-left:var(--sidebar-w);flex:1;display:flex;flex-direction:column;height:100vh;width:calc(100% - var(--sidebar-w))}
.topbar{height:var(--topbar-h);display:flex;align-items:center;gap:12px;padding:0 24px;border-bottom:1px solid var(--border);background:var(--bg-card);position:sticky;top:0;z-index:50;flex-shrink:0}
.topbar-title{font-weight:600;font-size:1.1rem}
.topbar-actions{margin-left:auto;display:flex;gap:8px}
.hamburger{display:none;background:none;border:none;color:var(--text);padding:4px}
.view-container{flex:1;overflow-y:auto;padding:24px}

/* ─── Buttons ───────────────────────────────────────────── */
.btn{display:inline-flex;align-items:center;gap:6px;padding:9px 16px;border-radius:var(--radius-sm);font-weight:500;font-size:.875rem;border:1px solid transparent;transition:all var(--transition);white-space:nowrap}
.btn-primary{background:var(--primary);color:#fff;border-color:var(--primary)}
.btn-primary:hover{background:var(--primary-hover);box-shadow:0 0 20px var(--primary-glow)}
.btn-ghost{background:transparent;color:var(--text-muted);border-color:var(--border)}
.btn-ghost:hover{background:var(--bg-hover);color:var(--text)}
.btn-danger{background:var(--danger);color:#fff}
.btn-danger:hover{background:var(--danger-hover)}
.btn-sm{padding:6px 10px;font-size:.8rem}

/* ─── Forms ─────────────────────────────────────────────── */
.form-group{display:flex;flex-direction:column;gap:4px}
.form-group label{font-size:.75rem;font-weight:600;color:var(--text-muted);text-transform:uppercase;letter-spacing:.5px}
.form-input,.form-select{padding:9px 12px;background:var(--bg-input);border:1px solid var(--border);border-radius:var(--radius-sm);color:var(--text);font-size:.875rem;transition:border-color var(--transition);outline:none}
.form-input:focus,.form-select:focus{border-color:var(--border-focus);box-shadow:0 0 0 3px var(--primary-glow)}
.form-input-sm{padding:6px 10px;font-size:.8rem}

/* ─── Cards ─────────────────────────────────────────────── */
.card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-lg);overflow:hidden}
.card-header{display:flex;align-items:center;justify-content:space-between;padding:16px 20px;border-bottom:1px solid var(--border)}
.card-header h3{font-size:1rem;font-weight:600}
.card-body{padding:16px 20px}

/* ─── Stats Grid ────────────────────────────────────────── */
.stats-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:16px;margin-bottom:24px}
.stat-card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-lg);padding:20px;display:flex;flex-direction:column;gap:8px;transition:all var(--transition);position:relative;overflow:hidden}
.stat-card::before{content:'';position:absolute;top:0;left:0;right:0;height:3px;background:linear-gradient(90deg,var(--primary),#a855f7);opacity:.7}
.stat-card:hover{border-color:var(--primary);transform:translateY(-2px);box-shadow:var(--shadow)}
.stat-value{font-size:2rem;font-weight:800;background:linear-gradient(135deg,var(--text),var(--text-muted));-webkit-background-clip:text;-webkit-text-fill-color:transparent}
.stat-label{font-size:.8rem;color:var(--text-muted);font-weight:500;text-transform:uppercase;letter-spacing:.5px}

/* ─── Dashboard ─────────────────────────────────────────── */
.dashboard-cards{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.empty-state,.empty-state-small{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px;padding:40px;color:var(--text-muted);text-align:center}
.empty-state-small{padding:24px;font-size:.875rem}
.empty-state h3{font-weight:600;color:var(--text)}
.empty-state p{font-size:.875rem}

/* ─── Upload ────────────────────────────────────────────── */
.upload-container{max-width:560px;margin:40px auto}
.upload-zone{border:2px dashed var(--border);border-radius:var(--radius-lg);padding:60px 40px;text-align:center;cursor:pointer;transition:all var(--transition);background:var(--bg-card)}
.upload-zone:hover,.upload-zone.dragover{border-color:var(--primary);background:var(--primary-glow)}
.upload-zone h2{font-size:1.3rem;margin-top:16px}
.upload-zone p{color:var(--text-muted);margin-top:4px}
.upload-icon{color:var(--primary)}
.upload-hint{margin-top:16px;font-size:.75rem;color:var(--text-dim)}
.upload-form{margin-top:20px;background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-lg);padding:24px}
.upload-file-info{display:flex;align-items:center;gap:12px;padding:12px 16px;background:var(--bg-elevated);border-radius:var(--radius-sm);margin-bottom:16px;color:var(--primary)}
.upload-filename{font-weight:600;color:var(--text)}
.upload-filesize{font-size:.8rem;color:var(--text-muted)}
.upload-actions{display:flex;gap:10px;justify-content:flex-end;margin-top:16px}
.upload-progress{margin-top:16px}
.progress-bar{height:6px;background:var(--bg-elevated);border-radius:3px;overflow:hidden}
.progress-fill{height:100%;background:linear-gradient(90deg,var(--primary),#a855f7);border-radius:3px;transition:width .3s;width:0%}
.progress-text{font-size:.8rem;color:var(--text-muted);margin-top:6px;text-align:center}

/* ─── Lists Grid ────────────────────────────────────────── */
.lists-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:16px}
.list-card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-lg);padding:20px;transition:all var(--transition);cursor:pointer;position:relative;overflow:hidden}
.list-card::before{content:'';position:absolute;top:0;left:0;right:0;height:3px;background:linear-gradient(90deg,var(--primary),#a855f7)}
.list-card:hover{border-color:var(--primary);transform:translateY(-2px);box-shadow:var(--shadow)}
.list-card-header{display:flex;justify-content:space-between;align-items:flex-start;margin-bottom:12px}
.list-card-name{font-weight:700;font-size:1.05rem}
.list-card-actions{display:flex;gap:4px}
.list-card-actions button{background:none;border:none;color:var(--text-dim);padding:4px;border-radius:4px;transition:all var(--transition)}
.list-card-actions button:hover{background:var(--bg-hover);color:var(--text)}
.list-card-meta{display:flex;gap:16px;font-size:.8rem;color:var(--text-muted)}
.list-card-meta span{display:flex;align-items:center;gap:4px}
.list-card-columns{margin-top:12px;display:flex;flex-wrap:wrap;gap:4px}
.col-tag{padding:2px 8px;background:var(--bg-elevated);border-radius:10px;font-size:.7rem;color:var(--text-muted);border:1px solid var(--border)}

/* ─── Data Table ────────────────────────────────────────── */
.table-wrapper{overflow-x:auto;border:1px solid var(--border);border-radius:var(--radius-lg);background:var(--bg-card)}
.data-table{width:100%;border-collapse:collapse;font-size:.82rem}
.data-table th{padding:10px 14px;text-align:left;font-weight:600;color:var(--text-muted);background:var(--bg-elevated);border-bottom:1px solid var(--border);white-space:nowrap;cursor:pointer;user-select:none;position:sticky;top:0;z-index:5;font-size:.75rem;text-transform:uppercase;letter-spacing:.5px}
.data-table th:hover{color:var(--text)}
.data-table th .sort-icon{margin-left:4px;opacity:.3;transition:opacity var(--transition)}
.data-table th.sorted .sort-icon{opacity:1;color:var(--primary)}
.data-table td{padding:8px 14px;border-bottom:1px solid var(--border);max-width:220px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.data-table tr:hover td{background:var(--bg-hover)}
.data-table tr.selected td{background:var(--primary-glow)}
.data-table .cb-cell{width:36px;text-align:center}
.data-table input[type="checkbox"]{accent-color:var(--primary);width:15px;height:15px;cursor:pointer}
.cell-editable{cursor:pointer;position:relative}
.cell-editable:hover{color:var(--primary)}
td .label-badge{display:inline-flex;align-items:center;padding:1px 8px;border-radius:10px;font-size:.7rem;font-weight:600;margin-right:3px;color:#fff}
td .group-badge{display:inline-flex;align-items:center;padding:1px 8px;border-radius:10px;font-size:.7rem;font-weight:500;margin-right:3px;border:1px solid;background:transparent}

/* ─── View Header ───────────────────────────────────────── */
.view-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px;flex-wrap:wrap;gap:12px}
.view-header h2{font-size:1.4rem;font-weight:700}
.view-header-left{display:flex;align-items:center;gap:10px}
.view-header-right{display:flex;gap:8px}
.lead-count-badge{background:var(--primary-glow);color:var(--primary);font-size:.8rem;font-weight:600;padding:2px 10px;border-radius:20px}

/* ─── Filter Bar ────────────────────────────────────────── */
.filter-bar{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-lg);padding:16px;margin-bottom:16px;animation:slideDown .2s ease}
.filter-row{display:flex;gap:12px;flex-wrap:wrap}
.filter-row .form-group{flex:1;min-width:160px}
.column-filters{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px;padding-top:12px;border-top:1px solid var(--border)}
.column-filters:empty{display:none;margin:0;padding:0;border:0}
.col-filter{display:flex;align-items:center;gap:6px;background:var(--bg-elevated);padding:4px 8px;border-radius:var(--radius-sm);font-size:.78rem}
.col-filter input{width:120px;padding:3px 6px;background:var(--bg-input);border:1px solid var(--border);border-radius:4px;color:var(--text);font-size:.78rem;outline:none}
.col-filter input:focus{border-color:var(--primary)}
.col-filter label{color:var(--text-muted);font-weight:500;white-space:nowrap}

/* ─── Bulk Actions ──────────────────────────────────────── */
.bulk-actions{display:flex;align-items:center;gap:16px;padding:10px 16px;background:var(--primary-glow);border:1px solid var(--primary);border-radius:var(--radius-lg);margin-bottom:12px;animation:slideDown .2s ease}
.bulk-count{font-weight:600;font-size:.875rem;color:var(--primary)}
.bulk-buttons{display:flex;gap:8px;margin-left:auto}

/* ─── Dropdowns ─────────────────────────────────────────── */
.dropdown{position:relative}
.dropdown-menu{display:none;position:absolute;top:100%;left:0;min-width:200px;background:var(--bg-elevated);border:1px solid var(--border);border-radius:var(--radius-sm);box-shadow:var(--shadow);z-index:200;max-height:260px;overflow-y:auto;padding:4px}
.dropdown.open .dropdown-menu{display:block;animation:fadeIn .15s ease}
.dropdown-item{display:flex;align-items:center;gap:8px;padding:8px 12px;border-radius:4px;font-size:.82rem;cursor:pointer;transition:background var(--transition);border:none;background:none;color:var(--text);width:100%;text-align:left}
.dropdown-item:hover{background:var(--bg-hover)}
.dropdown-item .dot{width:10px;height:10px;border-radius:50%;flex-shrink:0}

/* ─── Pagination ────────────────────────────────────────── */
.pagination{display:flex;align-items:center;justify-content:center;gap:4px;margin-top:16px;padding:12px 0}
.pagination button{padding:6px 12px;border:1px solid var(--border);border-radius:var(--radius-sm);background:var(--bg-card);color:var(--text-muted);font-size:.82rem;transition:all var(--transition)}
.pagination button:hover:not(:disabled){border-color:var(--primary);color:var(--primary)}
.pagination button.active{background:var(--primary);color:#fff;border-color:var(--primary)}
.pagination button:disabled{opacity:.4;cursor:not-allowed}
.pagination .page-info{font-size:.82rem;color:var(--text-muted);margin:0 8px}

/* ─── Labels & Groups Grid ──────────────────────────────── */
.labels-grid,.groups-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:12px}
.label-card,.group-card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-lg);padding:16px;display:flex;align-items:center;gap:12px;transition:all var(--transition)}
.label-card:hover,.group-card:hover{border-color:var(--primary);box-shadow:var(--shadow)}
.label-dot,.group-dot{width:14px;height:14px;border-radius:50%;flex-shrink:0;box-shadow:0 0 8px rgba(0,0,0,.2)}
.label-card-info,.group-card-info{flex:1}
.label-card-name,.group-card-name{font-weight:600;font-size:.95rem}
.label-card-count,.group-card-count{font-size:.78rem;color:var(--text-muted)}
.label-card-actions,.group-card-actions{display:flex;gap:4px}
.label-card-actions button,.group-card-actions button{background:none;border:none;color:var(--text-dim);padding:4px;border-radius:4px;cursor:pointer;transition:all var(--transition)}
.label-card-actions button:hover,.group-card-actions button:hover{color:var(--danger)}

/* ─── Provider Chart ────────────────────────────────────── */
.provider-bars{display:flex;flex-direction:column;gap:8px}
.provider-row{display:flex;align-items:center;gap:10px}
.provider-name{width:80px;font-size:.8rem;color:var(--text-muted);text-align:right;flex-shrink:0}
.provider-bar-wrap{flex:1;background:var(--bg-elevated);height:24px;border-radius:4px;overflow:hidden;position:relative}
.provider-bar-fill{height:100%;border-radius:4px;transition:width .6s cubic-bezier(.4,0,.2,1);display:flex;align-items:center;padding-left:8px;font-size:.7rem;font-weight:600;color:#fff;min-width:30px}

/* ─── Modal ─────────────────────────────────────────────── */
.modal-overlay{position:fixed;inset:0;background:rgba(0,0,0,.6);backdrop-filter:blur(4px);display:none;align-items:center;justify-content:center;z-index:500;animation:fadeIn .15s ease}
.modal-overlay.active{display:flex}
.modal{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-lg);width:90%;max-width:480px;box-shadow:0 20px 60px rgba(0,0,0,.4);animation:slideUp .2s ease}
.modal-header{display:flex;align-items:center;justify-content:space-between;padding:16px 20px;border-bottom:1px solid var(--border)}
.modal-header h3{font-size:1.05rem;font-weight:700}
.modal-close{background:none;border:none;color:var(--text-muted);font-size:24px;padding:0 4px;line-height:1;cursor:pointer}
.modal-close:hover{color:var(--text)}
.modal-body{padding:20px}
.modal-footer{display:flex;gap:8px;justify-content:flex-end;padding:16px 20px;border-top:1px solid var(--border)}

/* ─── Toast ─────────────────────────────────────────────── */
.toast-container{position:fixed;top:20px;right:20px;z-index:1000;display:flex;flex-direction:column;gap:8px}
.toast{padding:12px 16px;border-radius:var(--radius-sm);font-size:.85rem;font-weight:500;display:flex;align-items:center;gap:8px;animation:slideIn .3s ease;min-width:280px;box-shadow:var(--shadow)}
.toast-success{background:#065f46;color:#d1fae5;border:1px solid #10b981}
.toast-error{background:#7f1d1d;color:#fee2e2;border:1px solid #ef4444}
.toast-info{background:#1e3a5f;color:#dbeafe;border:1px solid #3b82f6}
.toast.removing{animation:slideOut .3s ease forwards}

/* ─── Animations ────────────────────────────────────────── */
@keyframes fadeIn{from{opacity:0}to{opacity:1}}
@keyframes slideDown{from{opacity:0;transform:translateY(-8px)}to{opacity:1;transform:translateY(0)}}
@keyframes slideUp{from{opacity:0;transform:translateY(16px)}to{opacity:1;transform:translateY(0)}}
@keyframes slideIn{from{opacity:0;transform:translateX(40px)}to{opacity:1;transform:translateX(0)}}
@keyframes slideOut{from{opacity:1;transform:translateX(0)}to{opacity:0;transform:translateX(40px)}}

/* ─── Recent List rows ──────────────────────────────────── */
.recent-list-row{display:flex;align-items:center;justify-content:space-between;padding:10px 0;border-bottom:1px solid var(--border);font-size:.875rem}
.recent-list-row:last-child{border:none}
.recent-list-name{font-weight:600}
.recent-list-count{color:var(--text-muted);font-size:.8rem}

/* ─── Inline Edit ───────────────────────────────────────── */
.inline-edit-input{background:var(--bg-input);border:1px solid var(--primary);border-radius:4px;padding:3px 6px;color:var(--text);font-size:.82rem;width:100%;outline:none}

/* ─── Color input ───────────────────────────────────────── */
.color-row{display:flex;align-items:center;gap:10px}
.color-row input[type="color"]{width:40px;height:32px;border:none;background:none;cursor:pointer;padding:0}

/* ─── Responsive ────────────────────────────────────────── */
@media(max-width:768px){
  .sidebar{transform:translateX(-100%)}
  .sidebar.open{transform:translateX(0)}
  .main-content{margin-left:0;width:100%}
  .hamburger{display:block}
  .dashboard-cards{grid-template-columns:1fr}
  .stats-grid{grid-template-columns:repeat(2,1fr)}
  .filter-row{flex-direction:column}
}
.view{display:none}.view.active{display:block;animation:fadeIn .2s ease}