/* styles.css - LeadBot Design System */

:root {
  /* Primary Brand */
  --lb-teal:        #1D9E75;
  --lb-teal-dark:   #0F6E56;
  --lb-teal-light:  #E1F5EE;
  --lb-teal-text:   #085041;

  /* Neutrals */
  --lb-bg:          #ffffff;
  --lb-surface:     #f7f7f6;
  --lb-page-bg:     #f2f2f0;
  --lb-border:      rgba(0,0,0,0.08);
  --lb-border-md:   rgba(0,0,0,0.14);
  --lb-text:        #0f0f0f;
  --lb-text-2:      #555550;
  --lb-text-3:      #999994;

  /* Semantic */
  --lb-success-bg:  #EAF3DE;
  --lb-success-txt: #27500A;
  --lb-info-bg:     #E6F1FB;
  --lb-info-txt:    #0C447C;
  --lb-danger-bg:   #FCEBEB;
  --lb-danger-txt:  #791F1F;

  /* Radius */
  --r-sm: 6px;
  --r-md: 8px;
  --r-lg: 12px;
  --r-xl: 16px;

  /* Layout */
  --sidebar-width: 200px;
  --topbar-height: 52px;
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  font-size: 14px;
  line-height: 1.4;
  color: var(--lb-text);
  background-color: var(--lb-page-bg);
  height: 100vh;
  overflow: hidden;
}

button {
  font-family: inherit;
  font-size: 14px;
  cursor: pointer;
  border: none;
  background: none;
  transition: all 120ms ease;
}

input, select, textarea {
  font-family: inherit;
  font-size: 14px;
  outline: none;
  border: 1px solid var(--lb-border-md);
  border-radius: var(--r-md);
  padding: 8px 12px;
  transition: all 150ms ease;
}

input:focus, select:focus, textarea:focus {
  box-shadow: 0 0 0 3px rgba(29,158,117,0.15);
  border-color: var(--lb-teal);
}

/* --- Layout Shell --- */
.app-shell {
  display: flex;
  height: 100vh;
  width: 100vw;
}

/* Sidebar */
.sidebar {
  width: var(--sidebar-width);
  background-color: var(--lb-bg);
  border-right: 1px solid var(--lb-border);
  display: flex;
  flex-direction: column;
  padding: 20px 0;
  flex-shrink: 0;
}

.sidebar-header {
  padding: 0 16px 24px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.logo-mark {
  width: 26px;
  height: 26px;
  background-color: var(--lb-teal);
  border-radius: var(--r-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
}

.logo-wordmark {
  font-size: 16px;
  font-weight: 500;
  color: var(--lb-text);
}

.nav-section {
  margin-bottom: 24px;
}

.nav-section-title {
  padding: 0 16px 8px;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--lb-text-3);
  font-weight: 500;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 16px;
  color: var(--lb-text-2);
  text-decoration: none;
  font-weight: 500;
  transition: background 120ms;
}

.nav-item:hover {
  background-color: var(--lb-surface);
}

.nav-item.active {
  background-color: var(--lb-teal-light);
  color: var(--lb-teal-text);
}

.nav-icon {
  width: 18px;
  height: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.nav-badge {
  margin-left: auto;
  background-color: var(--lb-teal);
  color: white;
  font-size: 10px;
  padding: 2px 6px;
  border-radius: 10px;
  font-weight: 500;
}

.sidebar-footer {
  margin-top: auto;
  padding: 16px;
  border-top: 1px solid var(--lb-border);
}

.sign-out-link {
  display: block;
  margin-bottom: 16px;
  color: var(--lb-text-3);
  font-size: 13px;
  text-decoration: none;
}

.sign-out-link:hover {
  color: var(--lb-danger-txt);
}

.user-avatar-row {
  display: flex;
  align-items: center;
  gap: 10px;
}

.user-initials {
  width: 32px;
  height: 32px;
  background-color: var(--lb-teal-light);
  color: var(--lb-teal-text);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  font-weight: 500;
}

.user-info {
  display: flex;
  flex-direction: column;
}

.user-name {
  font-size: 13px;
  font-weight: 500;
  color: var(--lb-text);
}

.user-plan {
  font-size: 11px;
  color: var(--lb-text-3);
}

/* Main Area */
.main-area {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.top-bar {
  height: var(--topbar-height);
  background-color: var(--lb-bg);
  border-bottom: 1px solid var(--lb-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 20px;
  flex-shrink: 0;
}

.page-title {
  font-size: 16px;
  font-weight: 500;
}

.top-bar-actions {
  display: flex;
  gap: 10px;
}

.content-area {
  flex: 1;
  overflow-y: auto;
  padding: 20px;
}

/* Components */
.btn-primary {
  background-color: var(--lb-teal);
  color: white;
  padding: 8px 16px;
  border-radius: var(--r-md);
  font-weight: 500;
}

.btn-primary:hover {
  background-color: var(--lb-teal-dark);
}

.btn-secondary {
  background-color: var(--lb-bg);
  border: 1px solid var(--lb-border-md);
  color: var(--lb-text-2);
  padding: 8px 16px;
  border-radius: var(--r-md);
  font-weight: 500;
}

.btn-secondary:hover {
  background-color: var(--lb-surface);
}

/* --- Auth Section --- */
.auth-wrap {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  background-color: var(--lb-page-bg);
}

.auth-card {
  background-color: var(--lb-bg);
  padding: 40px;
  border-radius: var(--r-xl);
  border: 1px solid var(--lb-border);
  width: 100%;
  max-width: 400px;
}

.auth-logo {
  font-size: 24px;
  font-weight: 500;
  margin-bottom: 8px;
}

.auth-sub {
  color: var(--lb-text-3);
  margin-bottom: 32px;
}

.field-group {
  margin-bottom: 20px;
}

.field-group label {
  display: block;
  font-size: 12px;
  font-weight: 500;
  color: var(--lb-text-2);
  margin-bottom: 6px;
}

.field-group input {
  width: 100%;
}

.auth-switch {
  margin-top: 24px;
  text-align: center;
  font-size: 13px;
  color: var(--lb-text-3);
}

.auth-switch a {
  color: var(--lb-teal);
  text-decoration: none;
  font-weight: 500;
}

/* --- Metric Cards --- */
.metrics-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-bottom: 24px;
}

.metric-card {
  background-color: var(--lb-surface);
  border: 1px solid var(--lb-border);
  border-radius: var(--r-md);
  padding: 14px;
}

.metric-label {
  font-size: 11px;
  color: var(--lb-text-2);
  margin-bottom: 4px;
}

.metric-value {
  font-size: 22px;
  font-weight: 500;
  margin-bottom: 4px;
}

.metric-delta {
  font-size: 11px;
}

.delta-up { color: var(--lb-success-txt); }
.delta-down { color: var(--lb-danger-txt); }

/* --- Table Styles --- */
.table-container {
  background-color: var(--lb-bg);
  border: 1px solid var(--lb-border);
  border-radius: var(--r-lg);
  overflow: hidden;
}

table {
  width: 100%;
  border-collapse: collapse;
}

th {
  text-align: left;
  padding: 12px 16px;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--lb-text-3);
  border-bottom: 1px solid var(--lb-border);
  font-weight: 500;
}

td {
  padding: 12px 16px;
  border-bottom: 1px solid var(--lb-border);
  vertical-align: middle;
}

tr:hover td {
  background-color: var(--lb-surface);
}

.status-badge {
  display: inline-flex;
  padding: 2px 8px;
  border-radius: 20px;
  font-size: 11px;
  font-weight: 500;
}

.badge-new { background: var(--lb-teal-light); color: var(--lb-teal-text); }
.badge-contacted { background: var(--lb-info-bg); color: var(--lb-info-txt); }
.badge-converted { background: var(--lb-success-bg); color: var(--lb-success-txt); }

/* --- Charts --- */
.charts-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-bottom: 24px;
}

.chart-card {
  background-color: var(--lb-bg);
  border: 1px solid var(--lb-border);
  border-radius: var(--r-lg);
  padding: 20px;
}

.chart-title {
  font-size: 14px;
  font-weight: 500;
  margin-bottom: 20px;
}

.bar-chart {
  display: flex;
  align-items: flex-end;
  gap: 4px;
  height: 150px;
}

.bar {
  flex: 1;
  background-color: var(--lb-teal);
  border-radius: 2px 2px 0 0;
  min-width: 4px;
}

.funnel-container {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.funnel-row {
  display: flex;
  align-items: center;
  gap: 12px;
}

.funnel-label {
  width: 80px;
  font-size: 11px;
  color: var(--lb-text-3);
  text-align: right;
}

.funnel-bar {
  height: 24px;
  border-radius: var(--r-sm);
  transition: width 0.4s ease;
}

.loading, .error {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 200px;
  color: var(--lb-text-3);
}

.error {
  color: var(--lb-danger-txt);
}

/* --- Side Panel --- */
.side-panel-overlay {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
  background: rgba(0,0,0,0.2);
  display: none;
  z-index: 100;
}

.side-panel {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  width: 320px;
  background: var(--lb-bg);
  border-left: 1px solid var(--lb-border);
  box-shadow: -4px 0 20px rgba(0,0,0,0.05);
  transform: translateX(100%);
  transition: transform 250ms ease;
  z-index: 101;
  display: flex;
  flex-direction: column;
}

.side-panel.open {
  transform: translateX(0);
}

.side-panel-header {
  padding: 20px;
  border-bottom: 1px solid var(--lb-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.side-panel-content {
  flex: 1;
  overflow-y: auto;
  padding: 20px;
}

/* Empty States */
.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 60px 20px;
  text-align: center;
}

.empty-state-icon {
  width: 40px;
  height: 40px;
  color: var(--lb-teal);
  margin-bottom: 16px;
}

.empty-state-text {
  color: var(--lb-text-3);
  margin-bottom: 24px;
}