:root {
  --bg: #0f1115;
  --panel: #171a21;
  --panel-border: #262a34;
  --text: #e6e8ec;
  --text-dim: #9199a8;
  --accent: #6c8cff;
  --up: #3ecf8e;
  --down: #ff6b6b;
  --radius: 12px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
}

.app {
  display: grid;
  grid-template-columns: 220px 1fr;
  min-height: 100vh;
}

.sidebar {
  background: #12141a;
  border-right: 1px solid var(--panel-border);
  padding: 24px 16px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 700;
  font-size: 18px;
  margin-bottom: 32px;
  padding: 0 8px;
}

.brand-mark { color: var(--accent); }

nav { display: flex; flex-direction: column; gap: 4px; }

.nav-item {
  color: var(--text-dim);
  text-decoration: none;
  padding: 10px 12px;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 500;
}

.nav-item:hover { background: #1c1f28; color: var(--text); }

.nav-item.active {
  background: rgba(108, 140, 255, 0.12);
  color: var(--accent);
}

.main {
  padding: 28px 36px 60px;
  max-width: 1280px;
}

.topbar {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: 28px;
}

.topbar h1 { margin: 0 0 4px; font-size: 24px; }

.subtitle { margin: 0; color: var(--text-dim); font-size: 14px; }

.range-select {
  background: var(--panel);
  border: 1px solid var(--panel-border);
  color: var(--text);
  padding: 8px 12px;
  border-radius: 8px;
  font-size: 13px;
}

.kpi-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 16px;
  margin-bottom: 20px;
}

.kpi-card {
  background: var(--panel);
  border: 1px solid var(--panel-border);
  border-radius: var(--radius);
  padding: 18px 20px;
}

.kpi-label {
  color: var(--text-dim);
  font-size: 13px;
  margin-bottom: 8px;
}

.kpi-label span {
  font-size: 11px;
  opacity: 0.7;
}

.kpi-value { font-size: 26px; font-weight: 700; margin-bottom: 6px; }

.kpi-delta { font-size: 12px; font-weight: 600; }

.kpi-delta.up { color: var(--up); }
.kpi-delta.down { color: var(--down); }

.grid-2 {
  display: grid;
  grid-template-columns: 1.6fr 1fr;
  gap: 16px;
  margin-bottom: 16px;
}

.panel {
  background: var(--panel);
  border: 1px solid var(--panel-border);
  border-radius: var(--radius);
  padding: 20px;
}

.panel-header { margin-bottom: 16px; }
.panel-header h2 { margin: 0; font-size: 15px; font-weight: 600; }

.top-products {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.top-products li {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 14px;
}

.tp-name { color: var(--text); }
.tp-meta { color: var(--text-dim); font-size: 12px; }
.tp-amount { font-weight: 600; }

.orders-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}

.orders-table th {
  text-align: left;
  color: var(--text-dim);
  font-weight: 500;
  padding: 8px 6px;
  border-bottom: 1px solid var(--panel-border);
}

.orders-table td {
  padding: 10px 6px;
  border-bottom: 1px solid #1e2129;
}

.orders-table .right { text-align: right; }

.status {
  padding: 3px 8px;
  border-radius: 999px;
  font-size: 11px;
  font-weight: 600;
}

.status.paid { background: rgba(62, 207, 142, 0.15); color: var(--up); }
.status.pending { background: rgba(255, 193, 7, 0.15); color: #ffc107; }
.status.refunded { background: rgba(255, 107, 107, 0.15); color: var(--down); }

.banner {
  background: rgba(255, 193, 7, 0.1);
  border: 1px solid rgba(255, 193, 7, 0.3);
  color: #ffc107;
  padding: 12px 16px;
  border-radius: var(--radius);
  font-size: 13px;
  margin-bottom: 20px;
}

.banner code {
  background: rgba(255, 255, 255, 0.08);
  padding: 1px 5px;
  border-radius: 4px;
}

.connect-box {
  margin-top: 32px;
  padding: 14px 12px;
  border-top: 1px solid var(--panel-border);
}

.connect-title {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-dim);
  margin-bottom: 10px;
  padding: 0 4px;
}

.connection-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 14px;
}

.connection-row {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  padding: 0 4px;
}

.dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  flex-shrink: 0;
}

.dot.live { background: var(--up); }
.dot.sample { background: #565b68; }

.dot-inline {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  margin-right: 8px;
}

.connect-btn {
  display: block;
  width: 100%;
  text-align: center;
  background: var(--accent);
  color: #0f1115;
  text-decoration: none;
  font-size: 13px;
  font-weight: 600;
  padding: 9px 10px;
  border-radius: 8px;
  border: none;
  cursor: pointer;
  font-family: inherit;
}

.channel-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.channel-list li {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 14px;
}

.channel-list .tp-name { margin-right: 8px; }

.badge {
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  padding: 2px 7px;
  border-radius: 999px;
  margin-left: 4px;
}

.badge.live { background: rgba(62, 207, 142, 0.15); color: var(--up); }
.badge.sample { background: rgba(255, 255, 255, 0.08); color: var(--text-dim); }

.panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.low-stock { color: var(--down); font-weight: 700; }

.panel-header-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

.kpi-card.clickable {
  cursor: pointer;
  transition: border-color 0.15s ease, transform 0.15s ease;
}

.kpi-card.clickable:hover {
  border-color: var(--accent);
  transform: translateY(-1px);
}

.link-btn {
  background: none;
  border: none;
  color: var(--accent);
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
  padding: 0;
}

.link-btn:hover { text-decoration: underline; }

.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(5, 6, 9, 0.72);
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding: 40px 20px;
  overflow-y: auto;
  z-index: 100;
}

.modal {
  background: var(--bg);
  border: 1px solid var(--panel-border);
  border-radius: var(--radius);
  width: 100%;
  max-width: 1080px;
  max-height: calc(100vh - 80px);
  display: flex;
  flex-direction: column;
}

.modal-header {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 20px 24px;
  border-bottom: 1px solid var(--panel-border);
}

.modal-header h2 { margin: 0; font-size: 18px; flex: 1; }

.modal-close {
  background: none;
  border: none;
  color: var(--text-dim);
  font-size: 22px;
  line-height: 1;
  cursor: pointer;
  padding: 4px;
}

.modal-close:hover { color: var(--text); }

.modal-body {
  padding: 24px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.aging-stats-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.toolbar {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 14px;
  flex-wrap: wrap;
}

.text-input {
  background: var(--bg);
  border: 1px solid var(--panel-border);
  color: var(--text);
  padding: 8px 12px;
  border-radius: 8px;
  font-size: 13px;
  flex: 1;
  min-width: 200px;
  font-family: inherit;
}

.text-input:focus { outline: none; border-color: var(--accent); }

.num-input { flex: none; min-width: 120px; width: 140px; }

.chart-box {
  position: relative;
  height: 260px;
  max-width: 420px;
  margin: 0 auto;
}

.orders-table th.sortable {
  cursor: pointer;
  user-select: none;
}

.orders-table th.sortable:hover { color: var(--text); }

.sort-arrow { color: var(--accent); }

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

.filter-btn {
  background: var(--bg);
  border: 1px solid var(--panel-border);
  color: var(--text-dim);
  padding: 7px 12px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
  font-family: inherit;
}

.filter-btn:hover { color: var(--text); border-color: var(--accent); }

.filter-btn.active {
  background: rgba(108, 140, 255, 0.15);
  color: var(--accent);
  border-color: var(--accent);
}

.muted-note { color: var(--text-dim); font-size: 12px; margin: 8px 0; }

.row-clickable { cursor: pointer; }
.row-clickable:hover { background: rgba(255, 255, 255, 0.03); }

.nested-table { font-size: 12px; margin: 6px 0; }
.expand-row td { background: rgba(255, 255, 255, 0.02); padding: 10px 14px; }

.modal-wide { max-width: 1320px; }

.business-tabs { display: flex; gap: 8px; margin-bottom: 16px; flex-wrap: wrap; }

.returns-stats-row {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
  margin: 14px 0;
}

.returns-platform-panel { margin-bottom: 20px; }
.returns-platform-panel:last-child { margin-bottom: 0; }

#agingBucketChart, #agingMfrChart { cursor: pointer; }

.chart-hint { color: var(--text-dim); font-size: 11px; margin: 8px 0 0; }

.btn {
  display: inline-block;
  background: var(--accent);
  color: #0f1115;
  text-decoration: none;
  font-size: 12px;
  font-weight: 600;
  padding: 8px 14px;
  border-radius: 8px;
  border: none;
  cursor: pointer;
  font-family: inherit;
  white-space: nowrap;
}

.btn:hover { opacity: 0.9; }

@media (max-width: 900px) {
  .app { grid-template-columns: 1fr; }
  .sidebar { display: none; }
  .kpi-grid { grid-template-columns: repeat(2, 1fr); }
  .grid-2 { grid-template-columns: 1fr; }
  .aging-stats-row { grid-template-columns: 1fr; }
  .returns-stats-row { grid-template-columns: 1fr; }
  .modal-overlay { padding: 0; }
  .modal { max-height: 100vh; border-radius: 0; }
}