/* BidSpot — Analytics Dashboard. Premium dashboard layout.
   Depends on css/variables.css for the palette. */

/* ============================================================
   Hero — compact gradient header
   ============================================================ */
.analytics-hero {
  background: linear-gradient(165deg, var(--accent-light) 0%, transparent 50%);
  border-bottom: 1px solid var(--border-color);
  padding: 40px 28px 28px;
  text-align: center;
}

.analytics-hero-inner {
  max-width: 640px;
  margin: 0 auto;
}

.analytics-hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--accent-light);
  border: 1px solid var(--accent-border);
  color: var(--accent-primary);
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding: 4px 14px;
  border-radius: var(--radius-full);
  margin-bottom: 14px;
}

.analytics-pulse {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--success-color);
  animation: a-pulse 2s infinite ease-in-out;
}

@keyframes a-pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.3; }
}

.analytics-hero h1 {
  font-family: var(--font-serif);
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  font-weight: 800;
  color: var(--text-primary);
  margin: 0 0 8px;
  letter-spacing: -0.03em;
}

.analytics-hero p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.5;
  margin: 0;
}

/* ============================================================
   Main layout
   ============================================================ */
.analytics-main {
  max-width: 1120px;
  margin: 0 auto;
  padding: 24px 24px 64px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

/* ============================================================
   KPI Row — 4 stat tiles
   ============================================================ */
.a-kpi-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
}

.a-kpi {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  padding: 20px 18px;
  display: flex;
  align-items: flex-start;
  gap: 14px;
  transition: border-color var(--transition-fast), transform var(--transition-normal);
}
.a-kpi:hover {
  border-color: var(--accent-border);
  transform: translateY(-2px);
}

.a-kpi--accent {
  background: linear-gradient(145deg, var(--accent-light) 0%, var(--bg-card) 100%);
  border-color: var(--accent-border);
}

.a-kpi-icon {
  width: 42px;
  height: 42px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 12px;
}

.a-kpi-icon--default {
  background: var(--bg-secondary);
  color: var(--accent-primary);
}
.a-kpi-icon--accent {
  background: var(--accent-primary);
  color: #fff;
}
.a-kpi-icon--teal {
  background: rgba(20, 140, 140, 0.1);
  color: #148c8c;
}
[data-theme="dark"] .a-kpi-icon--teal {
  background: rgba(40, 180, 180, 0.15);
  color: #3fd4d4;
}
.a-kpi-icon--green {
  background: rgba(27, 122, 61, 0.1);
  color: var(--success-color);
}
[data-theme="dark"] .a-kpi-icon--green {
  background: rgba(63, 184, 110, 0.15);
  color: var(--success-color);
}

.a-kpi-body { min-width: 0; }

.a-kpi-value {
  font-family: var(--font-serif);
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--text-primary);
  line-height: 1.15;
  letter-spacing: -0.02em;
}

.a-kpi-label {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: 3px;
  font-weight: 500;
}

/* ============================================================
   2-column dashboard grid
   ============================================================ */
.a-grid-2col {
  display: grid;
  grid-template-columns: 1.15fr 1fr;
  gap: 14px;
}

/* ============================================================
   Panel card
   ============================================================ */
.a-panel {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  padding: 22px 22px 24px;
  display: flex;
  flex-direction: column;
}

.a-panel-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 4px;
}

.a-panel-head h2 {
  font-family: var(--font-serif);
  font-size: 1rem;
  font-weight: 800;
  color: var(--text-primary);
  margin: 0;
}

.a-panel-subtitle {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin: 0 0 14px;
}

.a-hint {
  font-size: 0.75rem;
  color: var(--text-muted);
  font-weight: 500;
}

.a-range-tabs {
  display: flex;
  gap: 2px;
  background: var(--bg-secondary);
  border-radius: 8px;
  padding: 2px;
}

.a-range-tab {
  background: none;
  border: none;
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--text-muted);
  padding: 4px 12px;
  border-radius: 6px;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.a-range-tab:hover {
  color: var(--text-primary);
}

.a-range-tab.active {
  background: var(--bg-card);
  color: var(--text-primary);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.08);
}

.a-view-all {
  font-size: 0.78rem;
  color: var(--accent-primary);
  text-decoration: none;
  font-weight: 600;
  white-space: nowrap;
}
.a-view-all:hover {
  text-decoration: underline;
}

.a-chart-empty {
  color: var(--text-muted);
  font-size: 0.85rem;
  padding: 32px 0;
  text-align: center;
}

/* ============================================================
   Bar chart (pure CSS)
   ============================================================ */
.a-chart-area {
  flex: 1;
  min-height: 200px;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  margin-top: 12px;
}

.a-bars {
  display: flex;
  align-items: flex-end;
  gap: 6px;
  height: 180px;
  padding-top: 20px;
}

.a-bar-col {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  height: 100%;
}

.a-bar-val {
  font-size: 0.65rem;
  color: var(--text-muted);
  font-weight: 700;
  white-space: nowrap;
  margin-bottom: 6px;
  min-height: 14px;
}

.a-bar-track {
  flex: 1;
  width: 100%;
  max-width: 52px;
  display: flex;
  align-items: flex-end;
  border-radius: 6px 6px 2px 2px;
  overflow: hidden;
  border-bottom: 2px solid var(--border-subtle);
}

.a-bar-fill {
  width: 100%;
  background: var(--accent-primary);
  border-radius: 6px 6px 0 0;
  transition: height 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

.a-bar-fill--empty {
  background: var(--border-subtle);
  border-radius: 4px 4px 0 0;
  opacity: 0.5;
}

.a-bar-col--today .a-bar-date,
.a-bar-col--today .a-bar-day {
  color: var(--accent-primary);
  font-weight: 700;
}

.a-bar-date {
  font-size: 0.68rem;
  color: var(--text-muted);
  font-weight: 500;
  margin-top: 8px;
  white-space: nowrap;
}

.a-bar-day {
  font-size: 0.62rem;
  color: var(--text-muted);
  opacity: 0.7;
}

.a-chart-summary {
  display: flex;
  gap: 20px;
  margin-top: 16px;
  padding-top: 14px;
  border-top: 1px solid var(--border-subtle);
}

.a-chart-stat {
  font-size: 0.78rem;
  color: var(--text-secondary);
}
.a-chart-stat strong {
  color: var(--text-primary);
  font-weight: 700;
}

/* ============================================================
   Top categories list
   ============================================================ */
.a-top-cats {
  display: flex;
  flex-direction: column;
  gap: 0;
  flex: 1;
}

.a-cat-row {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 0;
  border-bottom: 1px solid var(--border-subtle);
}
.a-cat-row:last-child { border-bottom: none; }

.a-cat-icon {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 10px;
  background: var(--accent-light);
  font-size: 1rem;
  flex-shrink: 0;
}

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

.a-cat-name {
  font-weight: 700;
  font-size: 0.82rem;
  color: var(--text-primary);
  display: block;
  margin-bottom: 5px;
}

.a-cat-bar-track {
  width: 100%;
  height: 5px;
  background: var(--bg-secondary);
  border-radius: var(--radius-full);
  overflow: hidden;
}

.a-cat-bar-fill {
  height: 100%;
  background: var(--accent-primary);
  border-radius: var(--radius-full);
  transition: width 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}

.a-cat-clicks {
  font-size: 0.78rem;
  color: var(--text-secondary);
  font-weight: 600;
  white-space: nowrap;
  min-width: 70px;
  text-align: right;
}

/* ============================================================
   Recent bids table
   ============================================================ */
.a-table-wrap {
  flex: 1;
  overflow-x: auto;
}

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

.a-table thead th {
  text-align: left;
  font-weight: 600;
  color: var(--text-muted);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  padding: 10px 8px;
  border-bottom: 1px solid var(--border-color);
}

.a-table tbody td {
  padding: 11px 8px;
  color: var(--text-primary);
  border-bottom: 1px solid var(--border-subtle);
  vertical-align: middle;
}
.a-table tbody tr:last-child td { border-bottom: none; }

.a-table tbody tr:hover td {
  background: var(--bg-card-hover);
}

.a-table .col-num {
  color: var(--text-muted);
  font-weight: 600;
  width: 32px;
}

.a-table .col-listing {
  font-weight: 600;
  max-width: 180px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.a-table .col-amount {
  font-weight: 700;
  color: var(--accent-primary);
  white-space: nowrap;
}

.a-table .col-time {
  color: var(--text-muted);
  white-space: nowrap;
  font-size: 0.75rem;
}

/* ============================================================
   Performance insights
   ============================================================ */
.a-highlights {
  display: flex;
  flex-direction: column;
  gap: 0;
  flex: 1;
}

.a-insight {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 14px 0;
  border-bottom: 1px solid var(--border-subtle);
}
.a-insight:last-child { border-bottom: none; }

.a-insight-icon {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 10px;
  background: var(--accent-light);
  font-size: 1rem;
  flex-shrink: 0;
}

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

.a-insight-title {
  font-weight: 700;
  font-size: 0.85rem;
  color: var(--text-primary);
  margin-bottom: 3px;
}

.a-insight-desc {
  font-size: 0.78rem;
  color: var(--text-muted);
  line-height: 1.45;
}

.a-insight-arrow {
  color: var(--accent-primary);
  font-size: 1rem;
  font-weight: 700;
  flex-shrink: 0;
  margin-top: 2px;
}

/* ============================================================
   Responsive
   ============================================================ */
@media (max-width: 900px) {
  .a-kpi-row { grid-template-columns: repeat(2, 1fr); }
  .a-grid-2col { grid-template-columns: 1fr; }
}

@media (max-width: 500px) {
  .analytics-main { padding: 16px 16px 48px; gap: 12px; }
  .a-kpi-row { grid-template-columns: 1fr; }
  .a-kpi { padding: 16px 14px; }
  .a-kpi-value { font-size: 1.3rem; }
  .a-panel { padding: 16px 14px 18px; }
  .a-bars { height: 140px; }
  .analytics-hero { padding: 28px 16px 22px; }
}