:root {
  --bg-main: #0f172a;
  --bg-card: #1e293b;
  --bg-card-hover: #334155;
  --bg-border: #334155;
  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --primary: #38bdf8;
  --primary-hover: #0284c7;
  --success: #10b981;
  --warning: #f59e0b;
  --danger: #ef4444;
  --accent: #8b5cf6;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  background-color: var(--bg-main);
  color: var(--text-main);
  line-height: 1.5;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

a {
  color: var(--primary);
  text-decoration: none;
}
a:hover {
  text-decoration: underline;
}

.navbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.75rem 2rem;
  background-color: rgba(30, 41, 59, 0.95);
  border-bottom: 1px solid var(--bg-border);
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(8px);
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-weight: 700;
  font-size: 1.15rem;
  color: var(--text-main);
}
.brand-badge {
  background: linear-gradient(135deg, #0284c7, #6366f1);
  color: white;
  padding: 0.2rem 0.5rem;
  border-radius: 4px;
  font-size: 0.75rem;
  font-weight: 600;
}

.nav-links {
  display: flex;
  gap: 1.5rem;
}
.nav-link {
  color: var(--text-muted);
  font-weight: 500;
  font-size: 0.95rem;
  padding: 0.4rem 0.8rem;
  border-radius: 6px;
  transition: all 0.2s;
}
.nav-link:hover, .nav-link.active {
  color: var(--text-main);
  background-color: var(--bg-card-hover);
  text-decoration: none;
}

.nav-status {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.85rem;
  padding: 0.35rem 0.75rem;
  border-radius: 9999px;
  background-color: rgba(16, 185, 129, 0.15);
  color: var(--success);
  border: 1px solid rgba(16, 185, 129, 0.3);
}
.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: currentColor;
  box-shadow: 0 0 8px currentColor;
}

.main-content {
  flex: 1;
  padding: 2rem;
  max-width: 1440px;
  margin: 0 auto;
  width: 100%;
}

/* Card grids */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.25rem;
  margin-bottom: 2rem;
}

.card {
  background-color: var(--bg-card);
  border: 1px solid var(--bg-border);
  border-radius: 10px;
  padding: 1.25rem;
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.2);
}

.card-title {
  color: var(--text-muted);
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.card-value {
  font-size: 1.85rem;
  font-weight: 700;
  color: var(--text-main);
}

.card-subtitle {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: 0.25rem;
}

/* Controls Bar */
.controls-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background-color: var(--bg-card);
  border: 1px solid var(--bg-border);
  border-radius: 10px;
  padding: 1rem 1.5rem;
  margin-bottom: 2rem;
  flex-wrap: wrap;
  gap: 1rem;
}

.btn-group {
  display: flex;
  gap: 0.75rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-weight: 600;
  font-size: 0.9rem;
  padding: 0.5rem 1rem;
  border-radius: 6px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: all 0.15s;
}

.btn-primary {
  background-color: var(--primary);
  color: #0f172a;
}
.btn-primary:hover {
  background-color: var(--primary-hover);
}

.btn-secondary {
  background-color: var(--bg-card-hover);
  color: var(--text-main);
  border-color: var(--bg-border);
}
.btn-secondary:hover {
  background-color: #475569;
}

.btn-success {
  background-color: var(--success);
  color: #0f172a;
}
.btn-warning {
  background-color: var(--warning);
  color: #0f172a;
}
.btn-danger {
  background-color: var(--danger);
  color: white;
}

/* Badges */
.badge {
  display: inline-block;
  padding: 0.2rem 0.55rem;
  border-radius: 4px;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
}
.badge-customer { background-color: rgba(16, 185, 129, 0.2); color: #34d399; border: 1px solid rgba(16, 185, 129, 0.4); }
.badge-lead { background-color: rgba(56, 189, 248, 0.2); color: #38bdf8; border: 1px solid rgba(56, 189, 248, 0.4); }
.badge-vendor { background-color: rgba(245, 158, 11, 0.2); color: #fbbf24; border: 1px solid rgba(245, 158, 11, 0.4); }
.badge-inconclusive { background-color: rgba(239, 68, 68, 0.2); color: #f87171; border: 1px solid rgba(239, 68, 68, 0.4); }
.badge-override { background-color: rgba(139, 92, 246, 0.2); color: #c084fc; border: 1px solid rgba(139, 92, 246, 0.4); }

/* Tables */
.table-container {
  overflow-x: auto;
  border-radius: 10px;
  border: 1px solid var(--bg-border);
  background-color: var(--bg-card);
}

table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 0.9rem;
}

th {
  background-color: #0f172a;
  color: var(--text-muted);
  padding: 0.75rem 1rem;
  font-weight: 600;
  border-bottom: 1px solid var(--bg-border);
}

td {
  padding: 0.85rem 1rem;
  border-bottom: 1px solid var(--bg-border);
  color: var(--text-main);
}

tr:hover td {
  background-color: rgba(255, 255, 255, 0.02);
}

/* Split Pane for Review Queue */
.split-pane {
  display: grid;
  grid-template-columns: 420px 1fr;
  gap: 1.5rem;
  height: calc(100vh - 200px);
  min-height: 550px;
}

.pane-left {
  background-color: var(--bg-card);
  border: 1px solid var(--bg-border);
  border-radius: 10px;
  padding: 1.25rem;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.pane-right {
  background-color: var(--bg-card);
  border: 1px solid var(--bg-border);
  border-radius: 10px;
  padding: 1.25rem;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
}

.thread-header {
  border-bottom: 1px solid var(--bg-border);
  padding-bottom: 0.75rem;
  margin-bottom: 1rem;
}

.message-bubble {
  background-color: #0f172a;
  border: 1px solid var(--bg-border);
  border-radius: 8px;
  padding: 1rem;
  margin-bottom: 1rem;
}
.message-bubble.outbound {
  border-left: 4px solid var(--primary);
  background-color: #13233b;
}
.message-bubble.inbound {
  border-left: 4px solid var(--accent);
}

.msg-meta {
  display: flex;
  justify-content: space-between;
  color: var(--text-muted);
  font-size: 0.8rem;
  margin-bottom: 0.5rem;
}

.msg-body {
  white-space: pre-wrap;
  font-size: 0.9rem;
  color: #e2e8f0;
  line-height: 1.6;
}

mark {
  background-color: #fef08a;
  color: #854d0e;
  padding: 0.1rem 0.3rem;
  border-radius: 3px;
  font-weight: 600;
}

/* Keyboard shortcut bar */
.hotkey-bar {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem 1rem;
  background-color: #0f172a;
  border-radius: 8px;
  border: 1px solid var(--bg-border);
  font-size: 0.85rem;
  flex-wrap: wrap;
}

.kbd {
  display: inline-block;
  padding: 0.15rem 0.45rem;
  font-size: 0.8rem;
  font-weight: 700;
  color: #0f172a;
  background-color: #cbd5e1;
  border-radius: 4px;
  border: 1px solid #94a3b8;
  box-shadow: 0 1px 1px rgba(0, 0, 0, 0.4);
}

/* Search bar */
.search-input {
  background-color: #0f172a;
  border: 1px solid var(--bg-border);
  color: var(--text-main);
  padding: 0.6rem 1rem;
  border-radius: 6px;
  font-size: 0.9rem;
  width: 320px;
}
.search-input:focus {
  outline: none;
  border-color: var(--primary);
}

/* Range slider */
.range-slider {
  accent-color: var(--primary);
  vertical-align: middle;
}