/* ============================================================
   Banana Navy Digests — Design System (ERP-compliant)
   Based on design-system/banana-navy-erp/MASTER.md
   ============================================================ */

:root {
  /* Brand Foundations — dark mode default */
  --primary: #fed526;
  --primary-foreground: #0a0a0a;
  --background: #0a0a0a;
  --card: #141414;
  --border: #262626;
  --foreground: #f5f5f5;
  --muted: #1a1a1a;
  --muted-foreground: #a1a1aa;
  --accent: #1f1f1f;
  --destructive: #ef4444;
  --success: #22c55e;
  --warning: #f59e0b;
  --info: #3b82f6;

  /* Derived tokens */
  --radius: 8px;
  --radius-sm: 6px;
  --shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.25);
  --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.4);
  --brand-glow: 0 8px 24px -8px rgba(254, 213, 38, 0.6);
  --transition: 150ms;
}

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

html, body {
  height: 100%;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Inter, sans-serif;
  background: var(--background);
  color: var(--foreground);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

a {
  color: var(--primary);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

.muted {
  color: var(--muted-foreground);
  font-size: 0.85rem;
}

/* ============================================================
   HEADER — sticky, minimal
   ============================================================ */

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(10, 10, 10, 0.85);
  backdrop-filter: saturate(140%) blur(12px);
  -webkit-backdrop-filter: saturate(140%) blur(12px);
  border-bottom: 1px solid var(--border);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 24px;
  gap: 16px;
}

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

.brand-mark {
  width: 32px;
  height: 32px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

.brand-mark svg {
  width: 20px;
  height: 20px;
}

.brand-text h1 {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--primary);
  letter-spacing: 0.2px;
  line-height: 1.2;
}

.brand-text p {
  font-size: 0.72rem;
  color: var(--muted-foreground);
  margin-top: 0;
}

.header-meta {
  font-size: 0.78rem;
  color: var(--muted-foreground);
}

/* ============================================================
   STATS — KPI cards (ERP style)
   ============================================================ */

.stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 12px;
  margin: 24px 0;
}

.stat-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  transition: color var(--transition), border-color var(--transition);
  position: relative;
}

.stat-card:hover {
  border-color: var(--primary);
}

.stat-num {
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--foreground);
  line-height: 1.1;
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.5px;
}

.stat-label {
  margin-top: 4px;
  font-size: 0.68rem;
  color: var(--muted-foreground);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

/* ============================================================
   CHART — card style
   ============================================================ */

.chart-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px 20px;
  margin-bottom: 24px;
}

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

.chart-header h2 {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--foreground);
}

.chart-wrap {
  position: relative;
  height: 240px;
}

/* ============================================================
   TABS — segmented control (ERP style)
   ============================================================ */

.tabs {
  display: inline-flex;
  background: var(--muted);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 3px;
  margin-bottom: 18px;
  gap: 2px;
}

.tab {
  background: transparent;
  border: none;
  color: var(--muted-foreground);
  padding: 7px 16px;
  font-size: 0.82rem;
  font-weight: 500;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: background var(--transition), color var(--transition);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: inherit;
}

.tab:hover:not(.active) {
  color: var(--foreground);
}

.tab.active {
  background: var(--primary);
  color: var(--primary-foreground);
  font-weight: 600;
}

.tab-icon {
  font-size: 0.9rem;
  line-height: 1;
}

/* ============================================================
   FILTERS — dense input style
   ============================================================ */

.filters {
  display: flex;
  gap: 8px;
  margin-bottom: 20px;
  flex-wrap: wrap;
  align-items: center;
}

.filter-group {
  position: relative;
  display: flex;
  align-items: center;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  transition: border-color var(--transition);
}

.filter-group:focus-within {
  border-color: var(--primary);
}

.filter-group.search {
  flex: 1 1 280px;
  max-width: 400px;
}

.filter-icon {
  padding: 0 10px;
  color: var(--muted-foreground);
  font-size: 0.85rem;
}

.filter-group input,
.filter-group select {
  background: transparent;
  border: none;
  color: var(--foreground);
  padding: 8px 10px 8px 0;
  font-size: 0.82rem;
  font-family: inherit;
  outline: none;
  min-width: 140px;
}

.filter-group select {
  padding: 8px 32px 8px 12px;
  appearance: none;
  -webkit-appearance: none;
  cursor: pointer;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='8' height='5' viewBox='0 0 8 5'><path fill='%23a1a1aa' d='M4 5L0 0h8z'/></svg>");
  background-repeat: no-repeat;
  background-position: right 10px center;
}

.filter-group input::placeholder {
  color: var(--muted-foreground);
}

.btn-ghost {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--muted-foreground);
  padding: 7px 14px;
  border-radius: var(--radius-sm);
  font-size: 0.78rem;
  cursor: pointer;
  transition: all var(--transition);
  font-family: inherit;
}

.btn-ghost:hover {
  border-color: var(--primary);
  color: var(--primary);
}

/* ============================================================
   PANELS
   ============================================================ */

.tab-panel {
  animation: fade 0.2s ease both;
}

.tab-panel[hidden] {
  display: none;
}

@keyframes fade {
  from { opacity: 0; transform: translateY(3px); }
  to { opacity: 1; transform: none; }
}

.panel-head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 12px;
}

.panel-head h2 {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--foreground);
}

/* ============================================================
   GLOBAL LIST — compact rows (ERP style)
   ============================================================ */

.report-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.report-row {
  display: grid;
  grid-template-columns: 90px 1fr auto;
  align-items: center;
  gap: 14px;
  padding: 12px 16px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  text-decoration: none;
  color: inherit;
  transition: all var(--transition);
}

.report-row:hover {
  border-color: var(--primary);
  background: var(--accent);
}

.report-row .row-date {
  font-variant-numeric: tabular-nums;
  font-weight: 600;
  color: var(--primary);
  font-size: 0.78rem;
}

.report-row .row-title {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--foreground);
}

.report-row .row-meta {
  font-size: 0.72rem;
  color: var(--muted-foreground);
  margin-top: 1px;
}

.row-arrow {
  color: var(--muted-foreground);
  font-size: 1.1rem;
  transition: transform var(--transition), color var(--transition);
}

.report-row:hover .row-arrow {
  transform: translateX(3px);
  color: var(--primary);
}

/* ============================================================
   CLIENT GRID — compact cards (ERP style)
   ============================================================ */

.client-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 12px;
}

.client-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  transition: all var(--transition);
  position: relative;
}

.client-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--primary);
  opacity: 0;
  transition: opacity var(--transition);
}

.client-card:hover {
  border-color: var(--primary);
}

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

.client-head {
  display: flex;
  align-items: center;
  gap: 10px;
}

.client-avatar {
  width: 32px;
  height: 32px;
  border-radius: var(--radius-sm);
  background: var(--muted);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  color: var(--primary);
  font-size: 0.8rem;
  flex-shrink: 0;
}

.client-name {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--foreground);
  word-break: break-word;
}

.client-stats {
  font-size: 0.68rem;
  color: var(--muted-foreground);
  text-transform: uppercase;
  letter-spacing: 0.4px;
  margin-top: 1px;
}

.report-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 5px;
}

.report-pill {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 5px 9px;
  background: var(--muted);
  border: 1px solid var(--border);
  border-radius: 999px;
  font-size: 0.72rem;
  font-variant-numeric: tabular-nums;
  color: var(--foreground);
  text-decoration: none;
  transition: all var(--transition);
}

.report-pill:hover {
  border-color: var(--primary);
  color: var(--primary);
}

.report-pill .pill-dot {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--primary);
}

/* ============================================================
   STATUS DOTS (ERP pattern)
   ============================================================ */

.status-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  display: inline-block;
  margin-right: 4px;
}

.status-dot.success { background: var(--success); }
.status-dot.warning { background: var(--warning); }
.status-dot.info { background: var(--info); }
.status-dot.destructive { background: var(--destructive); }

/* ============================================================
   EMPTY STATE — action-oriented (no "No items found")
   ============================================================ */

.empty-state {
  text-align: center;
  padding: 40px 20px;
  color: var(--muted-foreground);
  border: 1px dashed var(--border);
  border-radius: var(--radius);
  background: var(--card);
}

/* ============================================================
   FOOTER
   ============================================================ */

.site-footer {
  margin-top: auto;
  padding: 20px 0;
  border-top: 1px solid var(--border);
  text-align: center;
  background: var(--background);
}

.site-footer span {
  font-size: 0.72rem;
  color: var(--muted-foreground);
}

/* ============================================================
   RESPONSIVE (< 640px mobile breakpoint)
   ============================================================ */

@media (max-width: 720px) {
  .header-inner { padding: 12px 16px; }
  .container { padding: 0 16px; }
  .header-meta { display: none; }
  .stats { gap: 8px; margin: 18px 0; }
  .stat-card { padding: 14px; }
  .stat-num { font-size: 1.3rem; }
  .chart-card { padding: 14px; }
  .chart-wrap { height: 200px; }
  .tabs { display: flex; width: 100%; }
  .tab { flex: 1; justify-content: center; padding: 6px 12px; }
  .filter-group input, .filter-group select { min-width: 0; }
  .filter-group.search { flex: 1 1 100%; max-width: none; }
  .report-row { grid-template-columns: 80px 1fr auto; padding: 10px; gap: 8px; }
  .report-row .row-title { font-size: 0.8rem; }
  .client-grid { grid-template-columns: 1fr; }
}

@media (max-width: 480px) {
  .stats { grid-template-columns: repeat(2, 1fr); }
}

/* ============================================================
   REDUCED MOTION
   ============================================================ */

@media (prefers-reduced-motion: reduce) {
  * {
    transition-duration: 0ms !important;
    animation-duration: 0ms !important;
  }
}