/* ============================================
   Pithon Dashboards - Main Stylesheet
   Dark theme with professional medical aesthetic
   ============================================ */

:root {
  --bg-primary: #0a0e1a;
  --bg-secondary: #111827;
  --bg-card: #1a2035;
  --bg-card-hover: #1f2847;
  --border: #2a3352;
  --border-light: #374168;
  --text-primary: #f1f5f9;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --blue: #3b82f6;
  --blue-light: #60a5fa;
  --blue-glow: rgba(59, 130, 246, 0.15);
  --green: #10b981;
  --green-light: #34d399;
  --amber: #f59e0b;
  --red: #ef4444;
  --purple: #8b5cf6;
  --cyan: #06b6d4;
  --font: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --radius: 12px;
  --radius-sm: 8px;
  --shadow: 0 4px 24px rgba(0, 0, 0, 0.3);
  --shadow-lg: 0 8px 40px rgba(0, 0, 0, 0.4);
}

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

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap');

body {
  font-family: var(--font);
  background: var(--bg-primary);
  color: var(--text-primary);
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

/* ============ TOPBAR ============ */
.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 32px;
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(12px);
}

.topbar-left {
  display: flex;
  align-items: center;
  gap: 16px;
}

.topbar-logo {
  font-size: 20px;
  font-weight: 700;
  color: var(--blue);
  letter-spacing: -0.5px;
}

.topbar-logo span { color: var(--text-secondary); font-weight: 400; }

.topbar-campaign {
  font-size: 14px;
  color: var(--text-secondary);
  padding: 4px 12px;
  background: var(--bg-card);
  border-radius: 6px;
  border: 1px solid var(--border);
}

.topbar-right {
  display: flex;
  align-items: center;
  gap: 12px;
}

.btn {
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: var(--bg-card);
  color: var(--text-primary);
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s;
  display: flex;
  align-items: center;
  gap: 6px;
}

.btn:hover { background: var(--bg-card-hover); border-color: var(--border-light); }
.btn-primary { background: var(--blue); border-color: var(--blue); }
.btn-primary:hover { background: var(--blue-light); }

/* ============ CAMPAIGN SELECTOR (index.html) ============ */
.selector-screen {
  max-width: 960px;
  margin: 0 auto;
  padding: 60px 24px;
}

.selector-title {
  font-size: 32px;
  font-weight: 800;
  letter-spacing: -1px;
  margin-bottom: 8px;
}

.selector-subtitle {
  color: var(--text-secondary);
  font-size: 16px;
  margin-bottom: 48px;
}

.campaigns-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 20px;
}

.campaign-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  cursor: pointer;
  transition: all 0.25s;
  position: relative;
  overflow: hidden;
}

.campaign-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--blue);
  opacity: 0;
  transition: opacity 0.25s;
}

.campaign-card:hover {
  border-color: var(--blue);
  transform: translateY(-2px);
  box-shadow: var(--shadow);
}

.campaign-card:hover::before { opacity: 1; }

.campaign-card-type {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--blue);
  margin-bottom: 8px;
}

.campaign-card-name {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 4px;
}

.campaign-card-period {
  font-size: 13px;
  color: var(--text-muted);
  margin-bottom: 16px;
}

.campaign-card-integrations {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}

.integration-badge {
  font-size: 10px;
  font-weight: 600;
  padding: 3px 8px;
  border-radius: 4px;
  background: rgba(59, 130, 246, 0.1);
  color: var(--blue-light);
  border: 1px solid rgba(59, 130, 246, 0.2);
}

.integration-badge.active { background: rgba(16, 185, 129, 0.1); color: var(--green); border-color: rgba(16, 185, 129, 0.2); }

/* ============ DASHBOARD LAYOUT ============ */
.dashboard {
  padding: 24px 32px;
  max-width: 1440px;
  margin: 0 auto;
}

/* ============ FUNNEL VISUALIZATION ============ */
.funnel-container {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  margin-bottom: 24px;
}

.funnel-title {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 24px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.funnel-title-badge {
  font-size: 11px;
  font-weight: 600;
  padding: 3px 10px;
  border-radius: 4px;
  background: var(--blue-glow);
  color: var(--blue-light);
}

.funnel-steps {
  display: flex;
  align-items: flex-start;
  gap: 0;
  overflow-x: auto;
  padding-bottom: 8px;
}

.funnel-step {
  flex: 1;
  min-width: 140px;
  display: flex;
  flex-direction: column;
  align-items: center;
  position: relative;
}

.funnel-step-icon {
  width: 56px;
  height: 56px;
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--blue-glow);
  border: 2px solid var(--border);
  margin-bottom: 12px;
  transition: all 0.3s;
}

.funnel-step-icon svg {
  width: 24px;
  height: 24px;
  color: var(--blue-light);
}

.funnel-step-label {
  font-size: 12px;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 4px;
}

.funnel-step-value {
  font-size: 28px;
  font-weight: 800;
  color: var(--text-primary);
  letter-spacing: -1px;
}

.funnel-step-value.loading {
  color: var(--text-muted);
  font-size: 16px;
}

.funnel-arrow {
  flex: 0 0 60px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding-top: 16px;
}

.funnel-arrow-line {
  width: 40px;
  height: 2px;
  background: var(--border-light);
  position: relative;
}

.funnel-arrow-line::after {
  content: '';
  position: absolute;
  right: -1px;
  top: -4px;
  border: 5px solid transparent;
  border-left: 6px solid var(--border-light);
}

.funnel-arrow-rate {
  font-size: 12px;
  font-weight: 700;
  margin-top: 6px;
  padding: 2px 8px;
  border-radius: 4px;
}

.funnel-arrow-rate.good { color: var(--green); background: rgba(16, 185, 129, 0.1); }
.funnel-arrow-rate.medium { color: var(--amber); background: rgba(245, 158, 11, 0.1); }
.funnel-arrow-rate.bad { color: var(--red); background: rgba(239, 68, 68, 0.1); }

/* ============ METRIC CARDS ============ */
.metrics-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 16px;
  margin-bottom: 24px;
}

.metric-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  transition: all 0.2s;
}

.metric-card:hover { border-color: var(--border-light); }

.metric-card-label {
  font-size: 12px;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 8px;
}

.metric-card-value {
  font-size: 28px;
  font-weight: 800;
  letter-spacing: -1px;
}

.metric-card-sub {
  font-size: 12px;
  color: var(--text-secondary);
  margin-top: 4px;
}

.metric-card-value.currency { color: var(--green); }
.metric-card-value.highlight { color: var(--blue); }

/* ============ TABS ============ */
.tabs-container {
  display: flex;
  gap: 4px;
  margin-bottom: 24px;
  border-bottom: 1px solid var(--border);
  padding-bottom: 0;
  overflow-x: auto;
}

.tab-btn {
  padding: 10px 20px;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-muted);
  background: none;
  border: none;
  cursor: pointer;
  border-bottom: 2px solid transparent;
  transition: all 0.2s;
  white-space: nowrap;
}

.tab-btn:hover { color: var(--text-secondary); }
.tab-btn.active { color: var(--blue); border-bottom-color: var(--blue); }

.tab-panel { display: none; }
.tab-panel.active { display: block; }

/* ============ CHARTS ============ */
.chart-container {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  margin-bottom: 24px;
}

.chart-title {
  font-size: 15px;
  font-weight: 700;
  margin-bottom: 16px;
}

.chart-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
  gap: 20px;
  margin-bottom: 24px;
}

/* ============ TABLE ============ */
.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}

.data-table th {
  text-align: left;
  padding: 10px 16px;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  font-size: 11px;
  letter-spacing: 0.5px;
  border-bottom: 1px solid var(--border);
}

.data-table td {
  padding: 12px 16px;
  border-bottom: 1px solid var(--border);
  color: var(--text-secondary);
}

.data-table tr:hover td { background: rgba(59, 130, 246, 0.04); }

/* ============ LOADING / EMPTY ============ */
.loading-spinner {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 48px;
  color: var(--text-muted);
  gap: 12px;
}

.spinner {
  width: 20px;
  height: 20px;
  border: 2px solid var(--border);
  border-top-color: var(--blue);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

@keyframes spin { to { transform: rotate(360deg); } }

.empty-state {
  text-align: center;
  padding: 48px;
  color: var(--text-muted);
}

/* ============ SENDFLOW GROUPS TABLE ============ */
.groups-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 12px;
}

.group-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 16px;
}

.group-card-name {
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 8px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.group-card-stats {
  display: flex;
  gap: 16px;
  font-size: 12px;
  color: var(--text-secondary);
}

.group-card-stat { display: flex; align-items: center; gap: 4px; }
.group-card-stat strong { color: var(--text-primary); font-weight: 700; }

/* ============ RESPONSIVE ============ */
@media (max-width: 768px) {
  .topbar { padding: 12px 16px; }
  .dashboard { padding: 16px; }
  .funnel-container { padding: 20px; }
  .funnel-steps { gap: 0; }
  .funnel-step { min-width: 100px; }
  .funnel-step-value { font-size: 20px; }
  .funnel-arrow { flex: 0 0 30px; }
  .funnel-arrow-line { width: 20px; }
  .metrics-grid { grid-template-columns: repeat(2, 1fr); }
  .chart-grid { grid-template-columns: 1fr; }
  .selector-screen { padding: 32px 16px; }
}