/* ====================================================================
   Kanngongkanngoen Admin BI Dashboard Stylesheet
   Fintech-grade, high-contrast, responsive data visualization UI
   ==================================================================== */

:root {
  --kgk-primary: #123c35;
  --kgk-primary-light: #1b544b;
  --kgk-accent: #0f766e;
  --kgk-accent-soft: #e6f4f1;
  --kgk-success: #10b981;
  --kgk-success-bg: #ecfdf5;
  --kgk-warning: #f59e0b;
  --kgk-warning-bg: #fffbeb;
  --kgk-info: #3b82f6;
  --kgk-info-bg: #eff6ff;
  --kgk-purple: #8b5cf6;
  --kgk-purple-bg: #f5f3ff;
  
  --bg-page: #f8faf9;
  --bg-surface: #ffffff;
  --bg-card: #ffffff;
  --text-main: #13221f;
  --text-muted: #526661;
  --border-color: #e2e8e5;
  --border-focus: #0f766e;

  --shadow-sm: 0 1px 2px rgba(18, 60, 53, 0.04);
  --shadow-md: 0 4px 12px rgba(18, 60, 53, 0.06);
  --shadow-lg: 0 12px 28px rgba(18, 60, 53, 0.08);
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 20px;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Sukhumvit Set", "Segoe UI", Roboto, sans-serif;
  background-color: var(--bg-page);
  color: var(--text-main);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

/* ------------------------------------------------ Layout */

.bi-app-container {
  max-width: 1320px;
  margin: 0 auto;
  padding: 24px 20px 60px;
}

/* ------------------------------------------------ Navigation Header */

.bi-header {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 18px 24px;
  box-shadow: var(--shadow-sm);
  margin-bottom: 24px;
}

.bi-brand-block {
  display: flex;
  align-items: center;
  gap: 14px;
}

.bi-logo-badge {
  width: 44px;
  height: 44px;
  background: linear-gradient(135deg, var(--kgk-primary), var(--kgk-accent));
  color: #ffffff;
  border-radius: var(--radius-md);
  display: grid;
  place-items: center;
  font-weight: 800;
  font-size: 1.25rem;
  box-shadow: 0 4px 10px rgba(18, 60, 53, 0.2);
}

.bi-brand-title {
  margin: 0;
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--kgk-primary);
  display: flex;
  align-items: center;
  gap: 8px;
}

.bi-tag {
  font-size: 0.72rem;
  font-weight: 700;
  padding: 3px 8px;
  border-radius: 999px;
  background: var(--kgk-accent-soft);
  color: var(--kgk-accent);
  letter-spacing: 0.5px;
}

.bi-brand-sub {
  margin: 2px 0 0;
  font-size: 0.85rem;
  color: var(--text-muted);
}

.bi-header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.bi-date-selector {
  display: flex;
  background: #edf2f0;
  border-radius: var(--radius-md);
  padding: 3px;
  gap: 2px;
}

.bi-range-btn {
  border: none;
  background: transparent;
  padding: 6px 14px;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-muted);
  border-radius: calc(var(--radius-md) - 3px);
  cursor: pointer;
  transition: all 0.15s ease;
}

.bi-range-btn.active {
  background: var(--bg-surface);
  color: var(--kgk-primary);
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
}

.bi-admin-badge {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  background: #f0f4f2;
  border-radius: var(--radius-md);
  font-size: 0.82rem;
  color: var(--kgk-primary);
  font-weight: 600;
}

.bi-admin-avatar {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--kgk-primary);
  color: white;
  display: grid;
  place-items: center;
  font-size: 0.7rem;
}

.bi-btn-secondary {
  border: 1px solid var(--border-color);
  background: white;
  color: var(--text-main);
  padding: 7px 14px;
  border-radius: var(--radius-md);
  font-size: 0.82rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.15s ease;
}

.bi-btn-secondary:hover {
  background: #f1f5f3;
}

/* ------------------------------------------------ KPI Cards Grid */

.bi-kpi-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 16px;
  margin-bottom: 24px;
}

.bi-kpi-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 20px;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: hidden;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.bi-kpi-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.bi-kpi-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: var(--kpi-color, var(--kgk-accent));
}

.bi-kpi-card.kpi-users { --kpi-color: #10b981; }
.bi-kpi-card.kpi-views { --kpi-color: #3b82f6; }
.bi-kpi-card.kpi-calc { --kpi-color: #8b5cf6; }
.bi-kpi-card.kpi-clicks { --kpi-color: #06b6d4; }
.bi-kpi-card.kpi-impressions { --kpi-color: #f59e0b; }
.bi-kpi-card.kpi-position { --kpi-color: #ec4899; }

.bi-kpi-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 8px;
}

.bi-kpi-label {
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.bi-kpi-icon {
  font-size: 1.15rem;
}

.bi-kpi-value {
  font-size: 1.85rem;
  font-weight: 800;
  color: var(--text-main);
  line-height: 1.1;
  margin-bottom: 6px;
  font-feature-settings: "tnum";
}

.bi-kpi-sub {
  font-size: 0.78rem;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 4px;
}

.bi-kpi-badge-up {
  color: var(--kgk-success);
  font-weight: 700;
}

/* ------------------------------------------------ Charts & Trends Section */

.bi-section {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 24px;
  margin-bottom: 24px;
  box-shadow: var(--shadow-sm);
}

.bi-section-header {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 20px;
}

.bi-section-title {
  margin: 0;
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--kgk-primary);
  display: flex;
  align-items: center;
  gap: 8px;
}

.bi-section-desc {
  margin: 4px 0 0;
  font-size: 0.82rem;
  color: var(--text-muted);
}

.bi-chart-legend {
  display: flex;
  align-items: center;
  gap: 16px;
  font-size: 0.82rem;
  font-weight: 600;
}

.bi-legend-item {
  display: flex;
  align-items: center;
  gap: 6px;
}

.bi-legend-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}

.bi-chart-container {
  width: 100%;
  height: 260px;
  position: relative;
  overflow: hidden;
}

.bi-svg-chart {
  width: 100%;
  height: 100%;
  display: block;
}

.bi-chart-tooltip {
  position: absolute;
  pointer-events: none;
  background: rgba(18, 60, 53, 0.95);
  color: white;
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  font-size: 0.78rem;
  line-height: 1.4;
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.2);
  display: none;
  z-index: 10;
  transform: translate(-50%, -120%);
  white-space: nowrap;
}

/* ------------------------------------------------ Data Tables */

.bi-table-toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 16px;
}

.bi-search-input-wrap {
  position: relative;
  flex: 1;
  max-width: 380px;
}

.bi-search-input {
  width: 100%;
  padding: 9px 14px 9px 36px;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  font-size: 0.85rem;
  background: #fbfdfc;
  color: var(--text-main);
  outline: none;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.bi-search-input:focus {
  border-color: var(--border-focus);
  box-shadow: 0 0 0 3px rgba(15, 118, 110, 0.12);
  background: white;
}

.bi-search-icon {
  position: absolute;
  left: 12px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  font-size: 0.9rem;
}

.bi-filter-chips {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}

.bi-chip {
  padding: 6px 12px;
  border-radius: 999px;
  font-size: 0.78rem;
  font-weight: 600;
  border: 1px solid var(--border-color);
  background: white;
  color: var(--text-muted);
  cursor: pointer;
  transition: all 0.15s ease;
}

.bi-chip.active {
  background: var(--kgk-primary);
  color: white;
  border-color: var(--kgk-primary);
}

.bi-table-responsive {
  width: 100%;
  overflow-x: auto;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
}

.bi-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 0.85rem;
}

.bi-table th {
  background: #f3f7f5;
  color: var(--kgk-primary);
  font-weight: 700;
  padding: 12px 16px;
  border-bottom: 1px solid var(--border-color);
  white-space: nowrap;
}

.bi-table td {
  padding: 12px 16px;
  border-bottom: 1px solid #edf2f0;
  color: var(--text-main);
  vertical-align: middle;
}

.bi-table tbody tr:hover {
  background-color: #f7fbf9;
}

.bi-table tbody tr:last-child td {
  border-bottom: none;
}

.bi-badge-pill {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 3px 8px;
  border-radius: 999px;
  font-size: 0.72rem;
  font-weight: 700;
}

.bi-badge-opportunity {
  background: var(--kgk-warning-bg);
  color: #b45309;
  border: 1px solid #fde68a;
}

.bi-badge-top {
  background: var(--kgk-success-bg);
  color: #065f46;
  border: 1px solid #a7f3d0;
}

.bi-badge-rank {
  background: #f0f4f2;
  color: var(--kgk-primary);
  font-weight: 700;
  font-feature-settings: "tnum";
}

.bi-traffic-bar-wrap {
  width: 100px;
  height: 6px;
  background: #e5ece9;
  border-radius: 999px;
  overflow: hidden;
  display: inline-block;
  vertical-align: middle;
  margin-right: 8px;
}

.bi-traffic-bar-fill {
  height: 100%;
  background: var(--kgk-accent);
  border-radius: 999px;
}

/* ------------------------------------------------ Events & Calculations Matrix */

.bi-matrix-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 16px;
}

.bi-matrix-card {
  background: #fafcfb;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 16px;
}

.bi-matrix-title {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--kgk-primary);
  margin: 0 0 12px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.bi-matrix-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.bi-matrix-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 7px 0;
  border-bottom: 1px dashed #e2e8e5;
  font-size: 0.82rem;
}

.bi-matrix-item:last-child {
  border-bottom: none;
}

/* ------------------------------------------------ Auth Gate Overlay */

.bi-auth-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(18, 60, 53, 0.4);
  backdrop-filter: blur(8px);
  z-index: 1000;
  place-items: center;
  padding: 20px;
}

.bi-auth-overlay.active {
  display: grid;
}

.bi-auth-card {
  background: white;
  border-radius: var(--radius-xl);
  max-width: 440px;
  width: 100%;
  padding: 36px 30px;
  text-align: center;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--border-color);
}

.bi-auth-title {
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--kgk-primary);
  margin: 12px 0 8px;
}

.bi-auth-desc {
  font-size: 0.88rem;
  color: var(--text-muted);
  margin-bottom: 24px;
  line-height: 1.6;
}

.bi-auth-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  width: 100%;
  padding: 12px;
  background: #ffffff;
  border: 1px solid #cfd9d5;
  border-radius: var(--radius-md);
  font-size: 0.95rem;
  font-weight: 700;
  color: #17201d;
  cursor: pointer;
  box-shadow: var(--shadow-sm);
  transition: all 0.15s ease;
  margin-bottom: 12px;
}

.bi-auth-btn:hover {
  background: #f8faf9;
  border-color: #b8c7c2;
}

.bi-auth-btn-preview {
  background: #e6f4f1;
  color: var(--kgk-accent);
  border: 1px solid #c2e5dc;
}

.bi-auth-btn-preview:hover {
  background: #d7ede7;
}

/* ------------------------------------------------ Responsive */

@media (max-width: 768px) {
  .bi-app-container {
    padding: 14px 12px 40px;
  }
  .bi-header {
    flex-direction: column;
    align-items: flex-start;
  }
  .bi-header-actions {
    width: 100%;
    justify-content: space-between;
  }
  .bi-kpi-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 480px) {
  .bi-kpi-grid {
    grid-template-columns: 1fr;
  }
}