/* ============================================================
   EXECUTIVE DASHBOARD — ALPINE FROST DESIGN SYSTEM
   Calm · Professional · Data-forward
   ============================================================ */

:root {
  /* Alpine Frost Palette */
  --bg-base:       #EEF3F8;
  --bg-surface:    #FFFFFF;
  --bg-sidebar:    #0A1929;
  --bg-sidebar-2:  #0F2540;
  --border:        #D8E4EF;
  --border-light:  #EBF2F8;

  --text-primary:  #0A1929;
  --text-secondary:#4A6070;
  --text-muted:    #8FA3B0;
  --text-inverse:  #FFFFFF;
  --text-sidebar:  #A8C4E0;

  /* Accent Colors */
  --accent:        #2E5090;
  --accent-hover:  #1E3A6E;
  --accent-light:  #E3EDF7;
  --accent-2:      #4A9EBF;
  --accent-2-light:#E0F2F8;

  /* Status Colors */
  --green:         #1A7F5A;
  --green-bg:      #E6F5EF;
  --amber:         #B07A1A;
  --amber-bg:      #FDF3DC;
  --red:           #C0392B;
  --red-bg:        #FDECEA;

  /* Icon Colors */
  --icon-blue:     #2E5090;
  --icon-teal:     #1A7F8A;
  --icon-indigo:   #5B4FCF;
  --icon-amber:    #B07A1A;
  --icon-rose:     #A0344A;

  /* Spacing & Shape */
  --radius-sm:     6px;
  --radius:        12px;
  --radius-lg:     16px;
  --sidebar-w:     240px;
  --topbar-h:      64px;

  /* Shadows */
  --shadow-sm:     0 1px 3px rgba(10,25,41,0.06), 0 1px 2px rgba(10,25,41,0.04);
  --shadow:        0 4px 16px rgba(10,25,41,0.08), 0 1px 4px rgba(10,25,41,0.04);
  --shadow-lg:     0 8px 32px rgba(10,25,41,0.12), 0 2px 8px rgba(10,25,41,0.06);

  /* Typography */
  --font-body:     'Plus Jakarta Sans', sans-serif;
  --font-display:  'Instrument Serif', serif;
}

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

html { font-size: 15px; scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  background: var(--bg-base);
  color: var(--text-primary);
  display: flex;
  min-height: 100vh;
  overflow-x: hidden;
}

/* ============================================================
   SIDEBAR
   ============================================================ */
.sidebar {
  width: var(--sidebar-w);
  min-height: 100vh;
  background: var(--bg-sidebar);
  display: flex;
  flex-direction: column;
  position: fixed;
  left: 0; top: 0; bottom: 0;
  z-index: 100;
  transition: transform 0.3s cubic-bezier(0.4,0,0.2,1);
}

.sidebar-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 22px 20px 18px;
  border-bottom: 1px solid rgba(255,255,255,0.06);
}

.brand-icon {
  width: 36px; height: 36px;
  background: var(--accent);
  border-radius: var(--radius-sm);
  display: flex; align-items: center; justify-content: center;
  color: white;
  flex-shrink: 0;
}

.brand-name {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-inverse);
  letter-spacing: 0.02em;
}

.sidebar-nav {
  flex: 1;
  padding: 16px 12px;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  border-radius: var(--radius-sm);
  color: var(--text-sidebar);
  text-decoration: none;
  font-size: 0.875rem;
  font-weight: 500;
  transition: all 0.18s ease;
  cursor: pointer;
}

.nav-item:hover {
  background: rgba(255,255,255,0.07);
  color: var(--text-inverse);
}

.nav-item.active {
  background: var(--accent);
  color: var(--text-inverse);
  box-shadow: 0 2px 8px rgba(46,80,144,0.4);
}

.nav-item svg { flex-shrink: 0; opacity: 0.85; }
.nav-item.active svg { opacity: 1; }

.sidebar-footer {
  padding: 16px 20px;
  border-top: 1px solid rgba(255,255,255,0.06);
}

.report-date {
  display: flex;
  align-items: center;
  gap: 6px;
  color: var(--text-sidebar);
  font-size: 0.78rem;
  margin-bottom: 4px;
}

.report-label {
  color: rgba(168,196,224,0.5);
  font-size: 0.72rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

/* ============================================================
   MAIN CONTENT
   ============================================================ */
.main-content {
  margin-left: var(--sidebar-w);
  flex: 1;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* ============================================================
   TOPBAR
   ============================================================ */
.topbar {
  height: var(--topbar-h);
  background: var(--bg-surface);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 28px;
  position: sticky;
  top: 0;
  z-index: 50;
  box-shadow: var(--shadow-sm);
}

.topbar-left { display: flex; align-items: center; gap: 14px; }

.menu-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  color: var(--text-secondary);
  padding: 6px;
  border-radius: var(--radius-sm);
}

.page-title h1 {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 400;
  color: var(--text-primary);
  line-height: 1.2;
}

.page-subtitle {
  font-size: 0.75rem;
  color: var(--text-muted);
  display: block;
  margin-top: 1px;
}

.topbar-right { display: flex; align-items: center; gap: 14px; }

.status-badge {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--green);
  background: var(--green-bg);
  padding: 5px 10px;
  border-radius: 20px;
}

.status-dot {
  width: 7px; height: 7px;
  background: var(--green);
  border-radius: 50%;
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.6; transform: scale(0.85); }
}

.topbar-divider {
  width: 1px; height: 24px;
  background: var(--border);
}

.user-avatar {
  width: 34px; height: 34px;
  background: var(--accent);
  color: white;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.05em;
}

/* ============================================================
   SECTIONS
   ============================================================ */
.section {
  display: none;
  padding: 28px;
  flex-direction: column;
  gap: 24px;
  animation: fadeIn 0.3s ease;
}

.section.active { display: flex; }

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: translateY(0); }
}

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

.section-heading {
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 400;
  color: var(--text-primary);
}

.badge-group { display: flex; gap: 8px; flex-wrap: wrap; }

.badge {
  font-size: 0.72rem;
  font-weight: 600;
  padding: 4px 10px;
  border-radius: 20px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.badge-blue   { background: var(--accent-light); color: var(--accent); }
.badge-green  { background: var(--green-bg); color: var(--green); }
.badge-amber  { background: var(--amber-bg); color: var(--amber); }
.badge-rose   { background: #FDECEA; color: var(--red); }

/* ============================================================
   KPI CARDS
   ============================================================ */
.kpi-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 16px;
}

.kpi-grid-3 { grid-template-columns: repeat(3, 1fr); }
.kpi-grid-4 { grid-template-columns: repeat(4, 1fr); }

.kpi-card {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  display: flex;
  align-items: flex-start;
  gap: 14px;
  box-shadow: var(--shadow-sm);
  transition: box-shadow 0.2s ease, transform 0.2s ease;
}

.kpi-card:hover {
  box-shadow: var(--shadow);
  transform: translateY(-1px);
}

.kpi-primary {
  background: linear-gradient(135deg, var(--accent) 0%, #1E3A6E 100%);
  border-color: transparent;
  color: white;
}

.kpi-icon {
  width: 42px; height: 42px;
  background: var(--accent-light);
  color: var(--accent);
  border-radius: var(--radius-sm);
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}

.kpi-primary .kpi-icon {
  background: rgba(255,255,255,0.15);
  color: white;
}

.kpi-icon-blue   { background: var(--accent-light); color: var(--icon-blue); }
.kpi-icon-teal   { background: #E0F5F5; color: var(--icon-teal); }
.kpi-icon-indigo { background: #EEEAF8; color: var(--icon-indigo); }
.kpi-icon-amber  { background: var(--amber-bg); color: var(--icon-amber); }
.kpi-icon-rose   { background: #FDECEA; color: var(--icon-rose); }

.kpi-body { flex: 1; min-width: 0; }

.kpi-label {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 6px;
}

.kpi-primary .kpi-label { color: rgba(255,255,255,0.65); }

.kpi-value {
  font-size: 1.55rem;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.1;
  margin-bottom: 6px;
  letter-spacing: -0.02em;
}

.kpi-primary .kpi-value { color: white; }

.kpi-unit {
  font-size: 0.8rem;
  font-weight: 500;
  opacity: 0.6;
}

.kpi-meta {
  font-size: 0.75rem;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 5px;
  flex-wrap: wrap;
}

.kpi-primary .kpi-meta { color: rgba(255,255,255,0.6); }

.kpi-ach {
  font-weight: 600;
  padding: 2px 7px;
  border-radius: 10px;
  font-size: 0.72rem;
}

.kpi-ach.good { background: var(--green-bg); color: var(--green); }
.kpi-ach.mid  { background: var(--amber-bg); color: var(--amber); }
.kpi-ach.low  { background: var(--red-bg); color: var(--red); }

.kpi-primary .kpi-ach.good {
  background: rgba(255,255,255,0.2);
  color: white;
}

.kpi-sep { color: var(--border); }

/* ============================================================
   CHART CARDS
   ============================================================ */
.charts-row {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 16px;
}

.charts-row.mt-24 { margin-top: 0; }

.chart-card {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.chart-wide  { grid-column: span 2; }
.chart-narrow { grid-column: span 1; }

.chart-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
}

.chart-title {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-primary);
}

.chart-subtitle {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: 2px;
}

.chart-legend {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.75rem;
  color: var(--text-secondary);
  flex-shrink: 0;
}

.legend-dot {
  display: inline-block;
  width: 10px; height: 10px;
  border-radius: 2px;
  margin-right: 4px;
}

.chart-wrap {
  position: relative;
  height: 220px;
}

.donut-wrap { height: 180px; }

.donut-legend {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding-top: 4px;
}

.donut-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.8rem;
  color: var(--text-secondary);
}

.donut-item strong {
  margin-left: auto;
  font-weight: 600;
  color: var(--text-primary);
}

.donut-dot {
  width: 10px; height: 10px;
  border-radius: 50%;
  flex-shrink: 0;
}

/* ============================================================
   TABLE CARDS
   ============================================================ */
.table-card {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
}

.mt-24 { margin-top: 0; }

.table-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  border-bottom: 1px solid var(--border-light);
}

.table-title {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-primary);
}

.table-meta {
  font-size: 0.75rem;
  color: var(--text-muted);
}

.table-scroll { overflow-x: auto; }

.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.82rem;
}

.data-table thead tr {
  background: var(--bg-base);
}

.data-table th {
  padding: 10px 14px;
  text-align: left;
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  white-space: nowrap;
  border-bottom: 1px solid var(--border);
}

.data-table th.num { text-align: right; }

.data-table td {
  padding: 10px 14px;
  color: var(--text-primary);
  border-bottom: 1px solid var(--border-light);
  white-space: nowrap;
}

.data-table td.num { text-align: right; font-variant-numeric: tabular-nums; }

.data-table tbody tr:hover { background: var(--bg-base); }
.data-table tbody tr:last-child td { border-bottom: none; }

.data-table .row-total {
  background: var(--accent-light);
  font-weight: 700;
}

.data-table .row-subtotal {
  background: #F5F8FC;
  font-weight: 600;
}

/* Status pills in tables */
.pill {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 3px 9px;
  border-radius: 20px;
  font-size: 0.7rem;
  font-weight: 600;
}

.pill-good   { background: var(--green-bg); color: var(--green); }
.pill-mid    { background: var(--amber-bg); color: var(--amber); }
.pill-low    { background: var(--red-bg); color: var(--red); }

/* Progress bar in tables */
.progress-cell { min-width: 120px; }

.progress-bar-wrap {
  display: flex;
  align-items: center;
  gap: 8px;
}

.progress-bar {
  flex: 1;
  height: 5px;
  background: var(--border);
  border-radius: 3px;
  overflow: hidden;
}

.progress-fill {
  height: 100%;
  border-radius: 3px;
  transition: width 0.6s ease;
}

.progress-fill.good { background: var(--green); }
.progress-fill.mid  { background: var(--amber); }
.progress-fill.low  { background: var(--red); }

.progress-pct {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-secondary);
  min-width: 38px;
  text-align: right;
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 1200px) {
  .charts-row { grid-template-columns: 1fr 1fr; }
  .chart-wide  { grid-column: span 2; }
  .chart-narrow { grid-column: span 1; }
  .kpi-grid-4 { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 900px) {
  :root { --sidebar-w: 0px; }

  .sidebar {
    transform: translateX(-240px);
    width: 240px;
  }

  .sidebar.open {
    transform: translateX(0);
    box-shadow: var(--shadow-lg);
  }

  .main-content { margin-left: 0; }

  .menu-toggle { display: flex; }

  .charts-row { grid-template-columns: 1fr; }
  .chart-wide, .chart-narrow { grid-column: span 1; }

  .kpi-grid { grid-template-columns: 1fr 1fr; }
  .kpi-grid-3 { grid-template-columns: 1fr; }
  .kpi-grid-4 { grid-template-columns: 1fr 1fr; }

  .section { padding: 16px; }
}

@media (max-width: 600px) {
  .kpi-grid { grid-template-columns: 1fr; }
  .kpi-grid-4 { grid-template-columns: 1fr; }
  .topbar { padding: 0 16px; }
}

/* ============================================================
   SCROLLBAR
   ============================================================ */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--text-muted); }

/* ============================================================
   OVERLAY (mobile sidebar)
   ============================================================ */
.sidebar-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(10,25,41,0.4);
  z-index: 99;
}

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