/* ============================================================
   ONLINE RETAIL ANALYTICS DASHBOARD — style.css
   Layout: Fixed Sidebar + Scrollable Main Content
   Design: White Clean Minimal + Maroon (#800000)
   Font: Inter (Google Fonts)
============================================================ */

/* ── RESET & BASE ───────────────────────────────────────── */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --clr-primary:    #800000;
  --clr-accent:     #c0392b;
  --clr-primary-lt: #f5e6e6;
  --clr-bg:         #ffffff;
  --clr-bg-main:    #f4f4f4;
  --clr-border:     #e8e8e8;
  --clr-text:       #1a1a1a;
  --clr-body:       #444444;
  --clr-muted:      #888888;
  --clr-white:      #ffffff;

  --shadow-sm: 0 2px 8px rgba(0,0,0,0.07);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.10);

  --radius-card:    8px;
  --radius-sm:      4px;
  --radius-pill:    999px;

  --sidebar-w:      240px;
  --sidebar-w-coll: 64px;
  --topbar-h:       60px;
  --transition:     0.2s ease;
}

html, body {
  height: 100%;
  overflow: hidden;
}

body {
  font-family: 'Inter', sans-serif;
  background: var(--clr-bg-main);
  color: var(--clr-text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a { text-decoration: none; color: inherit; }
img, canvas { max-width: 100%; display: block; }
button { font-family: inherit; cursor: pointer; }

/* ── DASHBOARD LAYOUT ───────────────────────────────────── */
.dashboard-layout {
  display: flex;
  height: 100vh;
  overflow: hidden;
}

/* ── SIDEBAR ────────────────────────────────────────────── */
.sidebar {
  width: var(--sidebar-w);
  flex-shrink: 0;
  background: var(--clr-bg);
  border-right: 1px solid var(--clr-border);
  display: flex;
  flex-direction: column;
  height: 100vh;
  overflow: hidden;
  position: relative;
  z-index: 200;
  transition: width var(--transition);
}

/* Maroon top accent bar */
.sidebar::before {
  content: '';
  display: block;
  height: 4px;
  background: var(--clr-primary);
  flex-shrink: 0;
}

.sidebar__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 16px 14px;
  border-bottom: 1px solid var(--clr-border);
}

.sidebar__logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--clr-primary);
  overflow: hidden;
  white-space: nowrap;
}

.sidebar__logo svg {
  width: 20px;
  height: 20px;
  stroke: var(--clr-primary);
  flex-shrink: 0;
  stroke-width: 2.5;
}

.sidebar__logo span {
  opacity: 1;
  transition: opacity var(--transition);
}

.sidebar__close-btn {
  display: none;
  background: none;
  border: none;
  padding: 4px;
  color: var(--clr-muted);
}

.sidebar__close-btn svg {
  width: 18px;
  height: 18px;
}

/* NAV MENU */
.sidebar__nav {
  flex: 1;
  overflow-y: auto;
  padding: 12px 0;
}

.sidebar__nav::-webkit-scrollbar { width: 4px; }
.sidebar__nav::-webkit-scrollbar-thumb { background: var(--clr-border); border-radius: 4px; }

.sidebar__nav ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: 0 8px;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 12px;
  border-radius: var(--radius-sm);
  font-size: 0.83rem;
  font-weight: 500;
  color: var(--clr-body);
  white-space: nowrap;
  overflow: hidden;
  transition: color var(--transition), background var(--transition);
}

.nav-item svg {
  width: 17px;
  height: 17px;
  flex-shrink: 0;
  stroke: currentColor;
  stroke-width: 2;
}

.nav-item span {
  opacity: 1;
  transition: opacity var(--transition);
}

.nav-item:hover {
  background: var(--clr-bg-main);
  color: var(--clr-primary);
}

.nav-item.active {
  background: var(--clr-primary-lt);
  color: var(--clr-primary);
  font-weight: 600;
}

/* SIDEBAR FOOTER */
.sidebar__footer {
  padding: 16px;
  border-top: 1px solid var(--clr-border);
  font-size: 0.75rem;
  color: var(--clr-muted);
  white-space: nowrap;
  overflow: hidden;
}

.sidebar__footer strong { color: var(--clr-primary); }

/* ── COLLAPSED SIDEBAR (≤ 1024px) ───────────────────────── */
@media (min-width: 769px) and (max-width: 1024px) {
  .sidebar {
    width: var(--sidebar-w-coll);
  }

  .sidebar__logo span,
  .nav-item span,
  .sidebar__footer {
    opacity: 0;
    pointer-events: none;
    width: 0;
    overflow: hidden;
  }

  .sidebar__logo {
    justify-content: center;
    padding: 0;
  }

  .sidebar__header {
    justify-content: center;
    padding: 18px 0 14px;
  }

  .nav-item {
    justify-content: center;
    padding: 10px;
  }

  .sidebar__close-btn { display: none; }
}

/* ── MAIN CONTENT ───────────────────────────────────────── */
.main-content {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-width: 0;
  height: 100vh;
  overflow: hidden;
}

/* TOP BAR */
.topbar {
  height: var(--topbar-h);
  background: var(--clr-bg);
  border-bottom: 1px solid var(--clr-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 28px;
  flex-shrink: 0;
  box-shadow: var(--shadow-sm);
}

.topbar__toggle {
  display: none;
  background: none;
  border: none;
  color: var(--clr-body);
  padding: 4px;
}

.topbar__toggle svg { width: 22px; height: 22px; }

.topbar__title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--clr-text);
}

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

.insights-top-btn {
  background: var(--clr-primary);
  color: #fff;
  border: none;
  padding: 8px 16px;
  border-radius: 6px;
  cursor: pointer;
  font-weight: 500;
  font-size: 0.85rem;
  display: flex;
  align-items: center;
  gap: 8px;
  transition: opacity 0.2s;
  text-decoration: none;
}
.insights-top-btn:hover {
  opacity: 0.9;
  color: #fff;
}
.insights-top-btn.active {
  background: var(--clr-primary-dark, #5a0000);
}
.insights-top-btn svg {
  width: 16px;
  height: 16px;
}

/* CONTENT WRAPPER — scrollable */
.content-wrapper {
  flex: 1;
  overflow-y: auto;
  padding: 28px;
}

.content-wrapper::-webkit-scrollbar { width: 6px; }
.content-wrapper::-webkit-scrollbar-thumb { background: var(--clr-border); border-radius: 6px; }
.content-wrapper::-webkit-scrollbar-track { background: transparent; }

/* ── PAGE PANELS ────────────────────────────────────────── */
.page-panel {
  display: none;
}

.page-panel.active {
  display: block;
}

/* PAGE HEADER */
.page-header {
  margin-bottom: 28px;
}

.page-header h2 {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--clr-text);
  margin-bottom: 4px;
}

.page-header p {
  font-size: 0.88rem;
  color: var(--clr-muted);
}

/* ── KPI GRID ───────────────────────────────────────────── */
.kpi-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-bottom: 24px;
}

.kpi-card {
  background: var(--clr-bg);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-card);
  padding: 20px;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  gap: 12px;
  transition: box-shadow var(--transition), transform var(--transition);
}

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

.kpi-card__icon {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: var(--clr-primary-lt);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.kpi-card__icon svg {
  width: 20px;
  height: 20px;
  stroke: var(--clr-primary);
  stroke-width: 2;
}

.kpi-card__label {
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: var(--clr-muted);
}

.kpi-card__value {
  font-size: 1.55rem;
  font-weight: 800;
  color: var(--clr-primary);
  line-height: 1;
}

.kpi-card__sub {
  font-size: 0.75rem;
  color: var(--clr-muted);
}

/* skeleton */
.skeleton {
  min-height: 120px;
  background: linear-gradient(90deg, #f0f0f0 25%, #e5e5e5 50%, #f0f0f0 75%);
  background-size: 200% 100%;
  animation: shimmer 1.4s infinite;
  border-radius: var(--radius-card);
  border: none !important;
  box-shadow: none !important;
}

@keyframes shimmer {
  0%   { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

/* ── CHART GRID ─────────────────────────────────────────── */
.chart-grid {
  display: grid;
  gap: 20px;
  margin-bottom: 20px;
}

.chart-grid--2 { grid-template-columns: repeat(2, 1fr); }
.chart-grid--3 { grid-template-columns: repeat(3, 1fr); }
.chart-card--span2 { grid-column: span 2; }

/* ── CHART CARD ─────────────────────────────────────────── */
.chart-card {
  background: var(--clr-bg);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-card);
  padding: 22px;
  box-shadow: var(--shadow-sm);
  margin-bottom: 20px;
}

.chart-card:last-child { margin-bottom: 0; }

.chart-grid .chart-card { margin-bottom: 0; }

.chart-card__header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 20px;
}

.chart-card__header .chart-title { margin-bottom: 0; }

.chart-title {
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--clr-text);
  margin-bottom: 18px;
}

/* chart wrap height variants */
.chart-wrap          { position: relative; height: 240px; }
.chart-wrap--sm      { position: relative; height: 200px; }
.chart-wrap--tall    { position: relative; height: 320px; }
.chart-wrap--wide    { position: relative; height: 280px; }

/* ── STATS ROW ──────────────────────────────────────────── */
.stats-row {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-bottom: 24px;
}

.stat-card {
  flex: 1 1 150px;
  background: var(--clr-bg);
  border: 1px solid var(--clr-border);
  border-left: 4px solid var(--clr-primary);
  border-radius: var(--radius-card);
  padding: 16px 18px;
  box-shadow: var(--shadow-sm);
}

.stat-card__label {
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--clr-muted);
  margin-bottom: 6px;
}

.stat-card__value {
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--clr-primary);
}

/* ── FILTER BAR ─────────────────────────────────────────── */
.filter-bar {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 20px;
}

.filter-btn {
  padding: 7px 18px;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--clr-body);
  background: var(--clr-bg);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-pill);
  transition: all var(--transition);
}

.filter-btn:hover {
  border-color: var(--clr-primary);
  color: var(--clr-primary);
  background: var(--clr-primary-lt);
}

.filter-btn.active {
  background: var(--clr-primary);
  color: var(--clr-white);
  border-color: var(--clr-primary);
}

/* ── METRIC BADGES (Forecast) ───────────────────────────── */
.metric-badges {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.metric-badge {
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  padding: 6px 14px;
  background: var(--clr-primary-lt);
  border: 1px solid rgba(128,0,0,0.15);
  border-radius: var(--radius-sm);
}

.metric-badge__label {
  font-size: 0.63rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--clr-primary);
}

.metric-badge__value {
  font-size: 0.95rem;
  font-weight: 800;
  color: var(--clr-primary);
}

/* ── CLUSTER DESCRIPTION CARDS ──────────────────────────── */
.cluster-desc-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-top: 20px;
}

.cluster-card {
  background: var(--clr-bg);
  border: 1px solid var(--clr-border);
  border-top: 3px solid var(--clr-primary);
  border-radius: var(--radius-card);
  padding: 18px;
  box-shadow: var(--shadow-sm);
}

.cluster-card__title {
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--clr-primary);
  margin-bottom: 8px;
}

.cluster-card__desc {
  font-size: 0.8rem;
  color: var(--clr-body);
  line-height: 1.6;
}

/* ── INSIGHTS GRID ──────────────────────────────────────── */
.insights-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}

.insight-card {
  background: var(--clr-bg);
  border: 1px solid var(--clr-border);
  border-left: 4px solid var(--clr-primary);
  border-radius: var(--radius-card);
  padding: 22px;
  box-shadow: var(--shadow-sm);
  display: flex;
  gap: 18px;
  transition: box-shadow var(--transition), transform var(--transition);
}

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

.insight-icon {
  width: 42px;
  height: 42px;
  border-radius: 10px;
  background: var(--clr-primary-lt);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  margin-top: 2px;
}

.insight-icon svg {
  width: 20px;
  height: 20px;
  stroke: var(--clr-primary);
  stroke-width: 2;
}

.insight-body {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.insight-title {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--clr-text);
}

.insight-finding {
  font-size: 0.82rem;
  color: var(--clr-body);
  line-height: 1.65;
}

.insight-rec-label {
  font-size: 0.67rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--clr-primary);
  margin-top: 4px;
}

.insight-rec {
  font-size: 0.8rem;
  color: var(--clr-body);
  line-height: 1.6;
  background: var(--clr-primary-lt);
  border-radius: var(--radius-sm);
  padding: 8px 12px;
}

/* ── OVERLAY (mobile sidebar backdrop) ──────────────────── */
.sidebar-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.4);
  z-index: 100;
}

/* ── RESPONSIVE — MOBILE (≤ 768px) ─────────────────────── */
@media (max-width: 768px) {
  .insights-top-text { display: none !important; }
  .insights-top-btn { padding: 8px 10px !important; }
  
  .sidebar {
    position: fixed;
    top: 0;
    left: 0;
    height: 100%;
    transform: translateX(-100%);
    transition: transform 0.25s ease;
    box-shadow: var(--shadow-md);
    z-index: 300;
    width: var(--sidebar-w);
  }

  .sidebar.open {
    transform: translateX(0);
  }

  .sidebar-overlay.visible { display: block; }

  .sidebar__close-btn { display: flex; }

  .topbar__toggle { display: flex; }

  .kpi-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .chart-grid--2,
  .chart-grid--3 {
    grid-template-columns: 1fr;
  }

  .chart-card--span2 { grid-column: span 1; }

  .cluster-desc-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .insights-grid {
    grid-template-columns: 1fr;
  }

  .content-wrapper { padding: 18px; }

  .chart-wrap--tall { height: 260px; }
  .chart-wrap--wide { height: 230px; }
}

/* ≤ 480px */
@media (max-width: 480px) {
  .kpi-grid { grid-template-columns: 1fr 1fr; gap: 10px; }
  .cluster-desc-grid { grid-template-columns: 1fr; }
  .content-wrapper { padding: 14px; }
}

/* ================================================================
   LOADING SYSTEM
================================================================ */

/* ── GLOBAL LOADING OVERLAY ─────────────────────────────── */
.loading-overlay {
  position: fixed;
  inset: 0;
  background: #ffffff;
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 1;
  transition: opacity 0.4s ease;
  pointer-events: all;
}

.loading-overlay.fade-out {
  opacity: 0;
  pointer-events: none;
}

.loading-overlay.hidden {
  display: none;
}

.loading-overlay__inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 20px;
}

.loading-overlay__text {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--clr-muted);
  letter-spacing: 0.02em;
}

/* ── CSS SPINNER ────────────────────────────────────────── */
.spinner {
  width: 44px;
  height: 44px;
  border: 3.5px solid var(--clr-primary-lt);
  border-top-color: var(--clr-primary);
  border-radius: 50%;
  animation: spin 0.75s linear infinite;
  flex-shrink: 0;
}

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

/* ── SKELETON ───────────────────────────────────────────── */
/* Shimmer keyframe (override the older one with consistent colors) */
@keyframes shimmer {
  0%   { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

.skeleton {
  background: linear-gradient(
    90deg,
    #e0e0e0 25%,
    #f0f0f0 50%,
    #e0e0e0 75%
  );
  background-size: 200% 100%;
  animation: shimmer 1.5s ease-in-out infinite;
  border-radius: var(--radius-card);
  border: none !important;
  box-shadow: none !important;
}

/* KPI skeleton cards keep same grid height */
.kpi-card.skeleton {
  min-height: 130px;
}

/* Chart area skeleton — sits inside .chart-wrap */
.chart-skeleton {
  width: 100%;
  height: 100%;
  border-radius: var(--radius-sm);
}

/* ── PAGE FADE TRANSITION ───────────────────────────────── */
.page-panel {
  display: none;
  opacity: 0;
}

.page-panel.active {
  display: block;
  animation: pageFadeIn 0.15s ease forwards;
}

@keyframes pageFadeIn {
  from { opacity: 0; transform: translateY(4px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ── CONTENT FADE-IN after skeleton replaced ────────────── */
.content-fade-in {
  animation: contentFadeIn 0.25s ease forwards;
}

@keyframes contentFadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}

/* ── ERROR STATE ────────────────────────────────────────── */
.error-state {
  position: fixed;
  inset: 0;
  background: var(--clr-bg-main);
  z-index: 9998;
  display: flex;
  align-items: center;
  justify-content: center;
}

.error-state[hidden] {
  display: none;
}

.error-state__card {
  background: var(--clr-bg);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-md);
  padding: 48px 40px;
  max-width: 440px;
  width: 90%;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
}

.error-state__icon {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--clr-primary-lt);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 4px;
}

.error-state__icon svg {
  width: 28px;
  height: 28px;
  stroke: var(--clr-primary);
  stroke-width: 2;
}

.error-state__title {
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--clr-text);
}

.error-state__sub {
  font-size: 0.85rem;
  color: var(--clr-muted);
  line-height: 1.65;
}

.error-state__sub code {
  background: var(--clr-bg-main);
  padding: 2px 6px;
  border-radius: 3px;
  font-size: 0.82rem;
  color: var(--clr-primary);
}

.error-state__retry {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 8px;
  padding: 10px 24px;
  background: var(--clr-primary);
  color: #fff;
  border: none;
  border-radius: var(--radius-pill);
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  transition: background var(--transition);
}

.error-state__retry:hover {
  background: var(--clr-accent);
}

.error-state__retry svg {
  width: 16px;
  height: 16px;
  stroke: #fff;
  stroke-width: 2.5;
}

/* ================================================================
   CHART EXPORT BUTTON
================================================================ */
.chart-card {
  position: relative;
}

.chart-export-btn {
  position: absolute;
  top: 16px;
  right: 16px;
  opacity: 0;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: #ffffff;
  border: 1px solid #e0e0e0;
  color: #800000;
  border-radius: 4px;
  padding: 4px 10px;
  font-size: 12px;
  font-family: inherit;
  font-weight: 500;
  cursor: pointer;
  transition: all 150ms ease;
  z-index: 10;
}

.chart-card:hover .chart-export-btn {
  opacity: 1;
}

.chart-export-btn:hover {
  background: #800000;
  color: #ffffff;
  border-color: #800000;
}

.chart-export-btn svg {
  width: 14px;
  height: 14px;
}

/* ================================================================
   DATA TABLES
================================================================ */
.table-wrap {
  width: 100%;
  overflow-x: auto;
  background: var(--clr-bg);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-sm);
  margin-top: 24px;
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
  text-align: left;
}

.data-table th {
  background: var(--clr-primary);
  color: var(--clr-white);
  font-weight: 600;
  padding: 10px 14px;
  cursor: pointer;
  user-select: none;
  white-space: nowrap;
  transition: background var(--transition);
}

.data-table th:hover {
  background: var(--clr-accent);
}

.data-table th.sort-asc::after { content: ' ▲'; font-size: 10px; }
.data-table th.sort-desc::after { content: ' ▼'; font-size: 10px; }

.data-table td {
  padding: 10px 14px;
  border-bottom: 1px solid #eeeeee;
  color: var(--clr-body);
}

.data-table tr:last-child td { border-bottom: none; }
.data-table tbody tr:nth-child(even) { background: #f9f9f9; }
.data-table tbody tr:hover { background: #fdf0f0; }

.align-right { text-align: right; }
.align-left { text-align: left; }
.align-center { text-align: center; }

/* ================================================================
   EXECUTIVE SUMMARY
================================================================ */
.page-header--exec {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
}
.page-header__right {
  display: flex;
  align-items: center;
  gap: 16px;
}
.exec-date {
  font-size: 14px;
  color: var(--clr-body);
  font-weight: 500;
}
.print-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  background: var(--clr-bg);
  border: 1px solid var(--clr-border);
  border-radius: 6px;
  color: var(--clr-primary);
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: background var(--transition);
}
.print-btn:hover {
  background: #fdf0f0;
}

.exec-kpi-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 20px;
  margin-bottom: 24px;
}
.exec-kpi-card {
  background: var(--clr-bg);
  padding: 24px 20px;
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.exec-kpi-card__label {
  font-size: 13px;
  color: var(--clr-body);
  font-weight: 500;
}
.exec-kpi-card__value {
  font-size: 28px;
  font-weight: 700;
  color: var(--clr-text);
  letter-spacing: -0.5px;
}

.exec-findings-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 20px;
  margin-bottom: 32px;
}
.finding-card {
  background: var(--clr-bg);
  padding: 20px 24px;
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-sm);
  border-left: 4px solid var(--clr-primary);
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.finding-card__title {
  font-size: 15px;
  font-weight: 700;
  color: var(--clr-text);
}
.finding-card__desc {
  font-size: 13px;
  color: var(--clr-body);
  line-height: 1.5;
}
.finding-card__rec {
  font-size: 13px;
  color: var(--clr-text);
  background: #fdf0f0;
  padding: 10px 14px;
  border-radius: 4px;
  margin-top: auto;
}
.finding-card__rec strong {
  color: var(--clr-primary);
}

.exec-tables-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
  margin-bottom: 32px;
}

.exec-footer {
  text-align: center;
  padding: 32px 0;
  border-top: 1px solid var(--clr-border);
  color: var(--clr-body);
  font-size: 12px;
  line-height: 1.6;
}

/* ================================================================
   PRINT STYLES
================================================================ */
@media print {
  html, body {
    height: auto !important;
    overflow: visible !important;
    background: #fff;
    color: #000;
  }
  .sidebar,
  .topbar,
  .print-btn,
  .filter-bar,
  .chart-export-btn,
  .loading-overlay {
    display: none !important;
  }
  .dashboard-layout,
  .main-content,
  .content-wrapper {
    display: block !important;
    height: auto !important;
    overflow: visible !important;
    position: static !important;
    margin: 0 !important;
    padding: 0 !important;
  }
  .page-panel {
    display: none !important;
  }
  .page-panel#page-exec-summary {
    display: block !important;
    height: auto !important;
    overflow: visible !important;
  }
  .chart-card,
  .exec-kpi-card,
  .finding-card,
  .table-wrap {
    box-shadow: none !important;
    border: 1px solid #ddd;
    page-break-inside: avoid;
  }
  .exec-findings-grid {
    grid-template-columns: 1fr 1fr;
  }
  .table-wrap {
    overflow: visible !important;
  }
  th, td {
    border: 1px solid #ddd;
  }
}

/* ================================================================
   ADVANCED ANALYTICS — NEW COMPONENTS
================================================================ */

/* ── Sidebar Nav Group Label ──────────────────────── */
.nav-group-label {
  list-style: none;
  padding: 16px 12px 6px;
  font-size: 0.65rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.10em;
  color: var(--clr-muted);
  display: flex;
  align-items: center;
  gap: 8px;
}
.nav-group-label::before {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--clr-border);
}
.nav-group-label span { white-space: nowrap; }

/* ── Cohort / Product Heatmap Tables ──────────────── */
.heatmap-scroll {
  overflow-x: auto;
  border-radius: var(--radius-sm);
  margin-top: 4px;
}
.cohort-table {
  border-collapse: collapse;
  font-size: 12px;
  min-width: 100%;
}
.cohort-table th {
  background: var(--clr-primary);
  color: #fff;
  padding: 7px 10px;
  white-space: nowrap;
  text-align: center;
  font-weight: 600;
}
.cohort-table td {
  padding: 7px 10px;
  text-align: center;
  border: 1px solid rgba(255,255,255,0.3);
  white-space: nowrap;
  font-size: 12px;
  font-weight: 500;
  transition: opacity 0.15s;
}
.cohort-table td:hover { opacity: 0.85; }
.cohort-label {
  background: var(--clr-bg-main) !important;
  color: var(--clr-body) !important;
  text-align: left !important;
  font-weight: 600 !important;
  min-width: 80px;
}

/* ── Sales Funnel (Smooth Trumpet SVG) ─────────────── */
.trumpet-funnel-wrapper {
  position: relative;
  width: 100%;
  max-width: 600px;
  margin: 20px auto;
}
.trumpet-funnel-svg {
  width: 100%;
  height: 100%;
  min-height: 450px;
  display: block;
  filter: drop-shadow(0 4px 6px rgba(0,0,0,0.1));
}
.trumpet-funnel-labels {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
}
.trumpet-label-container {
  position: absolute;
  left: 0;
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  color: #ffffff;
  text-shadow: 0 1px 4px rgba(0,0,0,0.4);
}
.trumpet-label-stage {
  font-size: 0.95rem;
  font-weight: 600;
  white-space: nowrap;
}
.trumpet-label-value {
  font-size: 1.3rem;
  font-weight: 800;
  margin-top: 2px;
}
.trumpet-label-conv {
  font-size: 0.75rem;
  font-weight: 500;
  background: rgba(0,0,0,0.25);
  padding: 3px 8px;
  border-radius: 12px;
  margin-top: 6px;
}

/* ── CLV Metrics Card ─────────────────────────────── */
.clv-metrics-card {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 20px;
  padding: 16px;
  background: var(--clr-bg);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-sm);
}

/* ── Responsive Adjustments for Advanced Pages ────── */
@media (max-width: 768px) {
  .nav-group-label::before { display: none; }
  .cohort-table { font-size: 11px; }
  .cohort-table th, .cohort-table td { padding: 5px 7px; }
  .trumpet-label-stage { font-size: 0.8rem; }
  .trumpet-label-value { font-size: 1.1rem; }
}