* { margin: 0; padding: 0; box-sizing: border-box; }
:root {
  --bg: #09090b; --bg2: #111113; --bg3: #0c0c0e; --bg4: #18181b;
  --border: #1e1e22; --border2: #2a2a30; --border3: #3a3a42;
  --text: #e5e7eb; --text2: #9ca3af; --text3: #6b7280;
  --purple: #7c3aed; --purple2: #a78bfa; --purple3: #c4b5fd; --purple-bg: rgba(124,58,237,.08); --purple-bg2: rgba(124,58,237,.15);
  --green: #22c55e; --green2: #4ade80; --green-bg: rgba(34,197,94,.08);
  --blue: #60a5fa; --blue2: #93c5fd; --blue-bg: rgba(96,165,250,.08);
  --red: #f87171; --red2: #fca5a5; --red-bg: rgba(248,113,113,.08);
  --yellow: #fbbf24; --yellow-bg: rgba(251,191,36,.08);
  --cyan: #22d3ee; --cyan-bg: rgba(34,211,238,.08);
  --font: 'Inter', system-ui, -apple-system, sans-serif;
  --mono: 'JetBrains Mono', ui-monospace, 'SF Mono', monospace;
  --radius: 10px; --radius-lg: 14px; --radius-sm: 6px;
  --shadow: 0 1px 3px rgba(0,0,0,.3), 0 1px 2px rgba(0,0,0,.2);
  --shadow-lg: 0 4px 20px rgba(0,0,0,.4);
  --transition: .15s ease;
}
body { background: var(--bg); color: var(--text); font-family: var(--font); min-height: 100vh; font-size: 14px; line-height: 1.5; }
a { color: var(--purple2); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--purple3); }
::selection { background: var(--purple); color: #fff; }
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border2); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--border3); }

/* Layout */
.app { display: flex; min-height: 100vh; }
.sidebar { width: 240px; background: var(--bg2); border-right: 1px solid var(--border); display: flex; flex-direction: column; position: fixed; top: 0; left: 0; bottom: 0; z-index: 100; }
.sidebar-brand { padding: 20px; border-bottom: 1px solid var(--border); }
.sidebar-brand h1 { font-size: 18px; font-weight: 700; }
.sidebar-brand .brand { color: var(--purple2); }
.sidebar-brand .sub { font-size: 11px; color: var(--text3); margin-top: 2px; letter-spacing: .5px; }
.sidebar-nav { flex: 1; padding: 12px 8px; display: flex; flex-direction: column; gap: 2px; }
.sidebar-nav a {
  display: flex; align-items: center; gap: 10px; padding: 10px 14px; border-radius: 8px;
  font-size: 13px; font-weight: 500; color: var(--text2); transition: all var(--transition);
}
.sidebar-nav a:hover { background: var(--purple-bg); color: var(--text); }
.sidebar-nav a.active { background: var(--purple-bg2); color: var(--purple3); font-weight: 600; }
.sidebar-nav a .icon { width: 18px; text-align: center; font-size: 15px; }
.sidebar-nav .spacer { flex: 1; }
.sidebar-footer { padding: 12px; border-top: 1px solid var(--border); }

.main { flex: 1; margin-left: 240px; }
.topbar {
  position: sticky; top: 0; z-index: 50; background: rgba(9,9,11,.85); backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border); padding: 14px 28px; display: flex; align-items: center; justify-content: space-between;
}
.topbar-title { font-size: 16px; font-weight: 700; }
.topbar-actions { display: flex; gap: 8px; align-items: center; }
.content { padding: 24px 28px; max-width: 1200px; }

/* Container fallback for settings/login */
.container { max-width: 800px; margin: 0 auto; padding: 20px 16px; }
.header {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: 20px; padding-bottom: 12px; border-bottom: 1px solid var(--border);
}
.nav { display: flex; gap: 8px; }
.nav a {
  padding: 8px 16px; border-radius: 8px; font-size: 13px; font-weight: 500;
  color: var(--text2); border: 1px solid transparent;
}
.nav a:hover, .nav a.active { background: var(--purple-bg); color: var(--purple3); border-color: var(--purple); }

/* Cards */
.card {
  background: var(--bg2); border: 1px solid var(--border); border-radius: var(--radius-lg);
  padding: 20px; margin-bottom: 12px; transition: border-color var(--transition);
}
.card:hover { border-color: var(--border2); }
.card-accent { border-left: 3px solid var(--purple); }
.card-flush { padding: 0; }
.card-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 16px 20px; border-bottom: 1px solid var(--border);
}
.card-body { padding: 16px 20px; }
.card-footer { padding: 12px 20px; border-top: 1px solid var(--border); }

/* Typography */
h1 { font-size: 22px; font-weight: 700; }
h1 .brand { color: var(--purple2); }
h2 { font-size: 15px; font-weight: 700; color: var(--purple2); margin-bottom: 12px; }
h3 { font-size: 13px; font-weight: 600; color: var(--text2); margin-bottom: 8px; text-transform: uppercase; letter-spacing: .5px; }

/* Buttons */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  padding: 9px 18px; border: none; border-radius: 8px; font-size: 13px;
  font-weight: 600; cursor: pointer; transition: all var(--transition); white-space: nowrap;
  font-family: var(--font);
}
.btn:hover { opacity: 0.9; transform: translateY(-1px); }
.btn:active { transform: translateY(0); }
.btn-primary { background: var(--purple); color: #fff; box-shadow: 0 1px 4px rgba(124,58,237,.3); }
.btn-secondary { background: var(--bg3); border: 1px solid var(--border2); color: var(--text); }
.btn-secondary:hover { border-color: var(--border3); background: var(--bg4); }
.btn-danger { background: var(--red-bg); border: 1px solid rgba(248,113,113,.2); color: var(--red); }
.btn-ghost { background: transparent; color: var(--text2); padding: 6px 10px; }
.btn-ghost:hover { color: var(--text); background: var(--bg4); }
.btn-sm { padding: 6px 12px; font-size: 12px; border-radius: var(--radius-sm); }
.btn-xs { padding: 4px 8px; font-size: 11px; border-radius: 4px; }
.btn-icon { width: 32px; height: 32px; padding: 0; border-radius: 8px; }

/* Inputs */
.input-group { margin-bottom: 14px; }
.input-group label {
  display: block; font-size: 11px; font-weight: 600; color: var(--text2);
  margin-bottom: 5px; letter-spacing: 0.5px; text-transform: uppercase;
}
.input-group input, .input-group textarea, .input-group select {
  width: 100%; padding: 10px 12px; background: var(--bg3); border: 1px solid var(--border2);
  border-radius: 8px; color: var(--text); font-size: 13px; font-family: var(--font);
  outline: none; transition: border-color var(--transition);
}
.input-group input:focus, .input-group textarea:focus, .input-group select:focus {
  border-color: var(--purple); box-shadow: 0 0 0 3px rgba(124,58,237,.15);
}

/* Badges */
.badge {
  display: inline-flex; align-items: center; gap: 4px; padding: 3px 10px;
  border-radius: 20px; font-size: 11px; font-weight: 600; letter-spacing: .2px;
}
.badge-green { background: var(--green-bg); border: 1px solid rgba(34,197,94,.2); color: var(--green2); }
.badge-red { background: var(--red-bg); border: 1px solid rgba(248,113,113,.2); color: var(--red); }
.badge-blue { background: var(--blue-bg); border: 1px solid rgba(96,165,250,.2); color: var(--blue); }
.badge-purple { background: var(--purple-bg); border: 1px solid rgba(124,58,237,.2); color: var(--purple3); }
.badge-yellow { background: var(--yellow-bg); border: 1px solid rgba(251,191,36,.2); color: var(--yellow); }
.badge-cyan { background: var(--cyan-bg); border: 1px solid rgba(34,211,238,.2); color: var(--cyan); }

/* Status */
.status-dot {
  display: inline-block; width: 8px; height: 8px; border-radius: 50%; margin-right: 6px;
}
.status-dot.green { background: var(--green); box-shadow: 0 0 6px rgba(34,197,94,.4); }
.status-dot.red { background: var(--red); box-shadow: 0 0 6px rgba(248,113,113,.4); }
.status-dot.yellow { background: var(--yellow); box-shadow: 0 0 6px rgba(251,191,36,.4); }
.status-dot.blue { background: var(--blue); box-shadow: 0 0 6px rgba(96,165,250,.4); }

/* Stats */
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; margin-bottom: 20px; }
.stat-card { text-align: center; padding: 20px 16px; position: relative; overflow: hidden; }
.stat-card::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0; height: 2px;
  background: linear-gradient(90deg, transparent, var(--stat-color, var(--purple)), transparent);
}
.stat-card .number { font-size: 32px; font-weight: 800; font-family: var(--mono); line-height: 1; }
.stat-card .label { font-size: 11px; color: var(--text3); text-transform: uppercase; margin-top: 6px; letter-spacing: .8px; }
.stat-card .sublabel { font-size: 11px; color: var(--text3); margin-top: 2px; }

/* Table */
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: 13px; }
th { text-align: left; padding: 10px 14px; font-size: 11px; font-weight: 600; color: var(--text3); text-transform: uppercase; letter-spacing: .5px; border-bottom: 1px solid var(--border2); background: var(--bg3); }
td { padding: 12px 14px; border-bottom: 1px solid var(--border); vertical-align: top; }
tr:hover td { background: rgba(124,58,237,.03); }
tr.clickable { cursor: pointer; }
tr.clickable:hover td { background: var(--purple-bg); }

/* Expand/Collapse */
.expandable { border-bottom: 1px solid var(--border); }
.expand-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 20px; cursor: pointer; transition: background var(--transition);
}
.expand-header:hover { background: var(--purple-bg); }
.expand-header .arrow { transition: transform var(--transition); color: var(--text3); font-size: 12px; }
.expand-header.open .arrow { transform: rotate(90deg); }
.expand-body { display: none; padding: 0 20px 16px; }
.expand-body.open { display: block; }

/* Tabs */
.tabs { display: flex; gap: 0; border-bottom: 1px solid var(--border); margin-bottom: 16px; }
.tab {
  padding: 10px 18px; font-size: 13px; font-weight: 500; color: var(--text3);
  cursor: pointer; border-bottom: 2px solid transparent; transition: all var(--transition);
}
.tab:hover { color: var(--text); }
.tab.active { color: var(--purple2); border-bottom-color: var(--purple); font-weight: 600; }
.tab-content { display: none; }
.tab-content.active { display: block; }

/* Detail panels */
.detail-panel {
  background: var(--bg3); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 16px; margin-bottom: 12px;
}
.detail-row { display: flex; padding: 8px 0; border-bottom: 1px solid var(--border); gap: 12px; }
.detail-row:last-child { border-bottom: none; }
.detail-label { font-size: 12px; color: var(--text3); min-width: 120px; font-weight: 500; text-transform: uppercase; letter-spacing: .3px; }
.detail-value { font-size: 13px; color: var(--text); flex: 1; word-break: break-word; }

/* Empty state */
.empty-state {
  text-align: center; padding: 48px 20px; color: var(--text3);
}
.empty-state .icon { font-size: 36px; margin-bottom: 12px; opacity: .5; }
.empty-state .title { font-size: 15px; font-weight: 600; color: var(--text2); margin-bottom: 4px; }
.empty-state .desc { font-size: 13px; margin-bottom: 16px; }

/* Pipeline/Funnel */
.funnel { display: flex; gap: 8px; margin: 12px 0; }
.funnel-step {
  flex: 1; text-align: center; padding: 10px 8px; border-radius: 8px;
  background: var(--bg3); border: 1px solid var(--border);
}
.funnel-step .count { font-size: 20px; font-weight: 700; font-family: var(--mono); }
.funnel-step .label { font-size: 10px; color: var(--text3); text-transform: uppercase; margin-top: 2px; }

/* Conversation thread */
.thread { display: flex; flex-direction: column; gap: 8px; max-height: 300px; overflow-y: auto; padding: 12px; }
.thread-msg { max-width: 75%; padding: 10px 14px; border-radius: 12px; font-size: 13px; line-height: 1.4; }
.thread-msg.out { align-self: flex-end; background: var(--purple-bg2); border: 1px solid rgba(124,58,237,.2); border-bottom-right-radius: 4px; }
.thread-msg.in { align-self: flex-start; background: var(--bg4); border: 1px solid var(--border2); border-bottom-left-radius: 4px; }
.thread-msg .meta { font-size: 10px; color: var(--text3); margin-top: 4px; }

/* Toast */
.toast-container { position: fixed; bottom: 20px; right: 20px; z-index: 1000; display: flex; flex-direction: column; gap: 8px; }
.toast {
  padding: 12px 20px; border-radius: 10px; font-size: 13px; font-weight: 500;
  box-shadow: var(--shadow-lg); animation: slideIn .3s ease;
  display: flex; align-items: center; gap: 8px;
}
.toast-success { background: #052e16; border: 1px solid #166534; color: var(--green2); }
.toast-error { background: #450a0a; border: 1px solid #991b1b; color: var(--red2); }
.toast-info { background: #1e1b4b; border: 1px solid #4c1d95; color: var(--purple3); }
@keyframes slideIn { from { transform: translateX(100%); opacity: 0; } to { transform: translateX(0); opacity: 1; } }

/* Loading */
.skeleton { background: linear-gradient(90deg, var(--bg3) 25%, var(--bg4) 50%, var(--bg3) 75%); background-size: 200% 100%; animation: shimmer 1.5s infinite; border-radius: var(--radius-sm); }
@keyframes shimmer { 0% { background-position: 200% 0; } 100% { background-position: -200% 0; } }
.spinner { display: inline-block; width: 16px; height: 16px; border: 2px solid var(--border2); border-top-color: var(--purple); border-radius: 50%; animation: spin .6s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

/* Modal */
.modal-overlay {
  position: fixed; inset: 0; background: rgba(0,0,0,.6); backdrop-filter: blur(4px);
  z-index: 200; display: flex; align-items: center; justify-content: center;
  animation: fadeIn .2s ease;
}
.modal {
  background: var(--bg2); border: 1px solid var(--border2); border-radius: var(--radius-lg);
  width: 90%; max-width: 640px; max-height: 85vh; overflow-y: auto; box-shadow: var(--shadow-lg);
}
.modal-header { display: flex; align-items: center; justify-content: space-between; padding: 18px 24px; border-bottom: 1px solid var(--border); }
.modal-header h2 { margin: 0; font-size: 16px; }
.modal-body { padding: 20px 24px; }
.modal-footer { padding: 14px 24px; border-top: 1px solid var(--border); display: flex; justify-content: flex-end; gap: 8px; }
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }

/* Alerts */
.alert { padding: 12px 16px; border-radius: 8px; margin-bottom: 12px; font-size: 13px; display: flex; align-items: center; gap: 8px; }
.alert-error { background: var(--red-bg); border: 1px solid rgba(248,113,113,.2); color: var(--red2); }
.alert-success { background: var(--green-bg); border: 1px solid rgba(34,197,94,.2); color: var(--green2); }
.alert-info { background: var(--blue-bg); border: 1px solid rgba(96,165,250,.2); color: var(--blue2); }

/* Grid */
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.grid-3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 12px; }
.flex { display: flex; }
.flex-wrap { flex-wrap: wrap; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.gap-4 { gap: 4px; }
.gap-8 { gap: 8px; }
.gap-12 { gap: 12px; }
.gap-16 { gap: 16px; }
.mt-8 { margin-top: 8px; }
.mt-12 { margin-top: 12px; }
.mt-16 { margin-top: 16px; }
.mt-24 { margin-top: 24px; }
.mb-8 { margin-bottom: 8px; }
.mb-12 { margin-bottom: 12px; }
.mb-16 { margin-bottom: 16px; }
.mb-24 { margin-bottom: 24px; }
.text-center { text-align: center; }
.text-right { text-align: right; }
.text-sm { font-size: 13px; }
.text-xs { font-size: 11px; }
.text-muted { color: var(--text2); }
.text-dim { color: var(--text3); }
.text-mono { font-family: var(--mono); }
.truncate { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.w-full { width: 100%; }

/* Responsive */
@media (max-width: 768px) {
  .sidebar { display: none; }
  .main { margin-left: 0; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .grid-2, .grid-3 { grid-template-columns: 1fr; }
  .content { padding: 16px; }
  .topbar { padding: 12px 16px; }
  .funnel { flex-wrap: wrap; }
}