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

:root {
  --bg:           #050505;
  --bg-2:         #0c0c0c;
  --surface:      #121212;
  --surface-2:    #181818;
  --surface-3:    #1f1f1f;
  --line:         #262626;
  --line-2:       #2e2e2e;

  --text:         #f5f5f5;
  --text-dim:     #a3a3a3;
  --text-mute:    #6f6f6f;

  --accent:       #ffffff;
  --accent-soft:  #ededed;

  --good:         #4ade80;
  --bad:          #f87171;

  --r-sm: 10px;
  --r-md: 14px;
  --r-lg: 20px;
  --r-xl: 26px;

  --shadow: 0 6px 24px rgba(0, 0, 0, 0.4);
}

html, body { height: 100%; }

body {
  font-family: 'Inter', system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  -webkit-font-smoothing: antialiased;
  font-size: 14px;
  line-height: 1.4;
}

button { font-family: inherit; cursor: pointer; border: 0; background: none; color: inherit; touch-action: manipulation; }
input  { font-family: inherit; outline: none; }
a      { color: inherit; text-decoration: none; }
svg    { width: 18px; height: 18px; flex-shrink: 0; }

/* ===== App layout ===== */
.app {
  display: grid;
  grid-template-columns: 260px 1fr;
  min-height: 100vh;
  gap: 18px;
  padding: 18px;
}

/* ===== Sidebar ===== */
.sidebar {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--r-xl);
  padding: 22px 16px;
  display: flex;
  flex-direction: column;
  gap: 18px;
  position: sticky;
  top: 18px;
  align-self: start;
  height: calc(100vh - 36px);
  overflow: hidden auto;
}

.sidebar::-webkit-scrollbar { width: 6px; }
.sidebar::-webkit-scrollbar-thumb { background: var(--line-2); border-radius: 3px; }

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 6px 8px 14px;
  border-bottom: 1px solid var(--line);
}
.logo-mark {
  width: 32px; height: 32px;
  display: grid; place-items: center;
  background: var(--accent);
  color: var(--bg);
  border-radius: 8px;
  font-weight: 800;
  font-size: 16px;
}
.logo-text {
  font-weight: 800;
  font-size: 20px;
  letter-spacing: -0.02em;
}

.nav { display: flex; flex-direction: column; gap: 4px; }
.nav-bottom { margin-top: auto; padding-top: 14px; border-top: 1px solid var(--line); }

.nav-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 11px 12px;
  border-radius: var(--r-sm);
  color: var(--text-dim);
  font-weight: 500;
  font-size: 14px;
  transition: background .15s, color .15s;
  position: relative;
}
.nav-item .chev {
  margin-left: auto;
  width: 14px; height: 14px;
  opacity: .6;
}
.nav-item:hover {
  background: var(--surface-2);
  color: var(--text);
}
.nav-item.active {
  background: var(--surface-3);
  color: var(--text);
}
.nav-item.active::before {
  content: '';
  position: absolute;
  left: 0; top: 8px; bottom: 8px;
  width: 3px;
  background: var(--accent);
  border-radius: 0 3px 3px 0;
}

/* Sidebar bot status card */
.status-card {
  background: linear-gradient(180deg, #181818 0%, #0a0a0a 100%);
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  padding: 14px 16px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.status-row {
  display: flex;
  align-items: center;
  gap: 8px;
}
.status-title {
  font-size: 12px;
  color: var(--text-mute);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}
.status-value {
  font-family: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 15px;
  font-weight: 600;
  color: var(--text);
  word-break: break-all;
}
.status-meta {
  font-size: 12px;
  color: var(--text-dim);
}
.dot-led {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--text-mute);
  box-shadow: 0 0 0 0 rgba(0,0,0,0);
}
.dot-led.on  { background: var(--good); box-shadow: 0 0 8px rgba(74, 222, 128, 0.55); }
.dot-led.off { background: var(--bad);  box-shadow: 0 0 6px rgba(248, 113, 113, 0.4); }

/* ===== Main ===== */
.main {
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 18px;
}

/* View panes — only the active tab is visible (display:flex overrides [hidden] without this) */
[data-view][hidden],
[data-view-only][hidden] {
  display: none !important;
}

[data-view]:not([hidden]) {
  display: flex;
  flex-direction: column;
  gap: 20px;
  min-width: 0;
}

/* Topbar */
.topbar {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  padding: 4px 4px 0;
  flex-wrap: wrap;
}
.topbar-left {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  min-width: 0;
  flex: 1 1 200px;
}
.topbar-titles { min-width: 0; }
.topbar h1 { font-size: 26px; font-weight: 700; letter-spacing: -0.02em; }
.topbar .sub { color: var(--text-mute); font-size: 13px; margin-top: 2px; }

.menu-btn { display: none; flex-shrink: 0; }

.topbar-right {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  flex: 1 1 320px;
  justify-content: flex-end;
  min-width: 0;
}
.topbar-tools {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: flex-end;
  min-width: 0;
}
.topbar-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
}

.search {
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 9px 16px;
  width: 280px;
  color: var(--text-dim);
}
.search input {
  background: transparent;
  border: 0;
  color: var(--text);
  width: 100%;
  font-size: 13px;
}
.search input::placeholder { color: var(--text-mute); }

.icon-btn {
  width: 38px; height: 38px;
  border-radius: 999px;
  background: var(--surface);
  border: 1px solid var(--line);
  color: var(--text-dim);
  display: grid; place-items: center;
  position: relative;
  transition: background .15s, color .15s, border-color .15s;
}
.icon-btn:hover { background: var(--surface-2); color: var(--text); }
.icon-btn.ghost { width: 32px; height: 32px; background: transparent; border-color: transparent; }
.icon-btn.ghost:hover { background: var(--surface-2); }
.icon-btn .dot {
  position: absolute;
  top: 8px; right: 10px;
  width: 7px; height: 7px;
  background: var(--accent);
  border-radius: 50%;
  border: 2px solid var(--surface);
}

.avatar {
  width: 38px; height: 38px;
  border-radius: 50%;
  background: linear-gradient(135deg, #2a2a2a, #1a1a1a);
  border: 1px solid var(--line);
  display: grid; place-items: center;
  font-weight: 700;
  color: var(--text);
}

/* Filter bar */
.filter-bar {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  flex-wrap: wrap;
}

.filter-bar-end {
  justify-content: flex-end;
}

.period-tabs {
  display: flex;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 4px;
  gap: 2px;
  max-width: 100%;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
}
.period-tabs::-webkit-scrollbar { display: none; }
.period-tab {
  padding: 8px 22px;
  border-radius: 999px;
  font-weight: 500;
  color: var(--text-dim);
  font-size: 13px;
  transition: background .15s, color .15s;
  white-space: nowrap;
  flex-shrink: 0;
}
.period-tab:hover { color: var(--text); }
.period-tab.active {
  background: var(--accent);
  color: var(--bg);
  font-weight: 600;
}

.date-range {
  display: flex;
  align-items: center;
  gap: 10px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 9px 18px;
  font-weight: 500;
  font-size: 13px;
  color: var(--text-dim);
}

/* Stats */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
.stat-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  padding: 22px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  position: relative;
  overflow: hidden;
  transition: transform .2s, border-color .2s;
}
.stat-card:hover { transform: translateY(-2px); border-color: var(--line-2); }

.stat-card.highlight {
  background: linear-gradient(135deg, #f5f5f5 0%, #d4d4d4 100%);
  color: #0a0a0a;
  border-color: transparent;
}
.stat-card.highlight::after {
  content: '';
  position: absolute;
  inset: 0;
  background:
    repeating-linear-gradient(135deg, transparent 0 14px, rgba(0,0,0,0.03) 14px 15px);
  pointer-events: none;
}
.stat-card.highlight .stat-label,
.stat-card.highlight .stat-change em { color: rgba(0,0,0,0.55); }
.stat-card.highlight .stat-change.up    { color: #166534; }
.stat-card.highlight .stat-change.down  { color: #991b1b; }

.stat-label {
  font-size: 13px;
  color: var(--text-dim);
  font-weight: 500;
}
.stat-value {
  font-size: 28px;
  font-weight: 700;
  letter-spacing: -0.02em;
}
.stat-change {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  font-weight: 600;
}
.stat-change svg { width: 14px; height: 14px; }
.stat-change em {
  font-style: normal;
  color: var(--text-mute);
  font-weight: 400;
  margin-left: 4px;
}
.stat-change.up   { color: var(--good); }
.stat-change.down { color: var(--bad); }

.stat-sub {
  font-size: 12px;
  color: var(--text-mute);
  font-weight: 500;
}
.stat-card.highlight .stat-sub { color: rgba(0,0,0,0.55); }

/* Card */
.card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  padding: 22px;
}
.card-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
}
.card-head h3 { font-size: 16px; font-weight: 700; }
.card-actions { display: flex; gap: 4px; align-items: center; }

.chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  border-radius: 999px;
  background: var(--surface-2);
  border: 1px solid var(--line);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--text-dim);
  font-family: 'JetBrains Mono', ui-monospace, monospace;
}
.chip.on  { background: rgba(74, 222, 128, 0.12); border-color: rgba(74, 222, 128, 0.35); color: var(--good); }
.chip.off { background: rgba(248, 113, 113, 0.10); border-color: rgba(248, 113, 113, 0.30); color: var(--bad); }

.mono { font-family: 'JetBrains Mono', ui-monospace, SFMono-Regular, monospace; }

/* Charts row */
.charts-row {
  display: grid;
  grid-template-columns: 1.45fr 0.85fr 1fr;
  gap: 20px;
}
.chart-wrap {
  height: 260px;
  position: relative;
}
.chart-empty {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-mute);
  font-size: 13px;
  text-align: center;
  padding: 16px;
}
.chart-wrap canvas[hidden],
.chart-wrap .bar-chart[hidden] {
  display: none !important;
}

.bar-chart {
  display: flex;
  flex-direction: column;
  height: 100%;
  min-height: 220px;
  gap: 8px;
}
.bar-chart-rows {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 10px;
  overflow: auto;
  padding: 4px 2px;
}
.bar-chart-row {
  display: grid;
  grid-template-columns: minmax(72px, 120px) 1fr minmax(42px, 52px);
  align-items: center;
  gap: 10px;
  min-width: 0;
}
.bar-chart-label {
  font-size: 11px;
  font-weight: 600;
  color: var(--text-mute);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.bar-chart-track {
  display: flex;
  height: 22px;
  min-width: 0;
  background: var(--surface-2);
  border: 1px solid var(--line);
  border-radius: 8px;
  overflow: hidden;
}
.bar-chart-on {
  display: block;
  height: 100%;
  background: rgba(245, 245, 245, 0.95);
  min-width: 2px;
}
.bar-chart-off {
  display: block;
  height: 100%;
  background: rgba(60, 60, 60, 0.95);
  min-width: 2px;
}
.bar-chart-val {
  font-size: 11px;
  color: var(--text-mute);
  text-align: right;
}
.bar-chart-legend {
  display: flex;
  gap: 16px;
  justify-content: center;
  padding-top: 4px;
  font-size: 11px;
  color: var(--text-mute);
}
.bar-chart-legend span {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.bar-chart-dot {
  display: inline-block;
  width: 10px;
  height: 10px;
  border-radius: 3px;
}
.bar-chart-dot.on { background: rgba(245, 245, 245, 0.95); }
.bar-chart-dot.off { background: rgba(60, 60, 60, 0.95); }

/* Active account card */
.active-card { display: flex; flex-direction: column; }
.active-name {
  font-family: 'JetBrains Mono', ui-monospace, monospace;
  font-size: 22px;
  font-weight: 700;
  letter-spacing: -0.01em;
  margin: 2px 0 14px;
  word-break: break-all;
}
.active-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  background: var(--surface-2);
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  padding: 14px;
}
.kv { display: flex; flex-direction: column; gap: 4px; min-width: 0; }
.kv-key {
  font-size: 11px;
  color: var(--text-mute);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-weight: 500;
}
.kv-val {
  font-size: 13px;
  color: var(--text);
  font-weight: 600;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.kv-val.mono { font-size: 12px; font-weight: 500; color: var(--text-dim); }

/* Community / ring */
.community {
  margin-top: 18px;
  background: var(--surface-2);
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  padding: 14px 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}
.community h4 { font-size: 14px; font-weight: 700; margin-bottom: 6px; }

.ring {
  width: 64px; height: 64px;
  position: relative;
  flex-shrink: 0;
}
.ring svg { width: 100%; height: 100%; transform: rotate(-90deg); }
.ring-bg { fill: none; stroke: var(--surface-3); stroke-width: 9; }
.ring-fg {
  fill: none;
  stroke: var(--accent);
  stroke-width: 9;
  stroke-linecap: round;
  stroke-dasharray: 264 264;
  stroke-dashoffset: 264;
  transition: stroke-dashoffset .8s ease, opacity .3s ease;
}
.ring span {
  position: absolute;
  inset: 0;
  display: grid; place-items: center;
  font-size: 13px;
  font-weight: 700;
}

/* Pie chart */
.pie-wrap {
  height: 260px;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}
.pie-chart {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
  width: 100%;
  padding: 8px 12px 12px;
}
.pie-chart[hidden] { display: none !important; }
.pie-svg {
  width: 148px;
  height: 148px;
  flex-shrink: 0;
}
.pie-sent { fill: rgba(245, 245, 245, 0.95); }
.pie-unsent { fill: rgba(70, 70, 70, 0.95); }
.pie-hole { fill: var(--surface); }
.pie-center {
  fill: var(--text);
  font-size: 16px;
  font-weight: 700;
  text-anchor: middle;
  dominant-baseline: middle;
}
.pie-center-sub {
  fill: var(--text-mute);
  font-size: 9px;
  font-weight: 600;
  text-anchor: middle;
  dominant-baseline: middle;
}
.pie-legend {
  display: flex;
  flex-direction: column;
  gap: 8px;
  width: 100%;
  font-size: 12px;
  color: var(--text-dim);
}
.pie-legend-item {
  display: flex;
  align-items: center;
  gap: 8px;
}
.pie-dot {
  width: 10px;
  height: 10px;
  border-radius: 999px;
  flex-shrink: 0;
}
.pie-dot.sent { background: rgba(245, 245, 245, 0.95); }
.pie-dot.unsent { background: rgba(70, 70, 70, 0.95); }

/* Heatmap */
.heatmap-card { max-width: 100%; }
.heatmap-wrap {
  overflow-x: auto;
  overflow-y: hidden;
  -webkit-overflow-scrolling: touch;
  padding: 4px 0 8px;
  max-height: 360px;
}
.heatmap-grid {
  display: flex;
  flex-direction: column;
  gap: 3px;
  width: 100%;
  min-width: 640px;
}
.heatmap-row {
  display: grid;
  grid-template-columns: 36px repeat(24, minmax(18px, 1fr));
  gap: 3px;
  align-items: center;
}
.heatmap-row-label {
  font-size: 10px;
  color: var(--text-mute);
  font-weight: 600;
  text-align: right;
  padding-right: 4px;
}
.heatmap-hour-labels {
  display: grid;
  grid-template-columns: 36px repeat(24, minmax(18px, 1fr));
  gap: 3px;
  margin-bottom: 4px;
}
.heatmap-hour-labels span {
  font-size: 9px;
  color: var(--text-mute);
  text-align: center;
}
.heatmap-cell {
  height: 18px;
  width: 100%;
  min-width: 0;
  border-radius: 3px;
  background: var(--surface-3);
  border: 1px solid var(--line);
  transition: transform .12s;
}
.heatmap-cell[data-level="0"] { background: var(--surface-3); opacity: 0.55; }
.heatmap-cell[data-level="1"] { background: rgba(245, 245, 245, 0.22); }
.heatmap-cell[data-level="2"] { background: rgba(245, 245, 245, 0.42); }
.heatmap-cell[data-level="3"] { background: rgba(245, 245, 245, 0.62); }
.heatmap-cell[data-level="4"] { background: rgba(245, 245, 245, 0.82); }
.heatmap-cell[data-level="5"] { background: rgba(245, 245, 245, 0.98); }
.heatmap-legend {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 10px;
  font-size: 11px;
  color: var(--text-mute);
}
.heatmap-legend-scale {
  display: flex;
  gap: 3px;
}
.heatmap-legend-scale i {
  width: 12px;
  height: 12px;
  border-radius: 3px;
  display: block;
  border: 1px solid var(--line);
}
.heatmap-legend-scale i[data-level="0"] { background: var(--surface-3); opacity: 0.55; }
.heatmap-legend-scale i[data-level="1"] { background: rgba(245, 245, 245, 0.22); }
.heatmap-legend-scale i[data-level="2"] { background: rgba(245, 245, 245, 0.42); }
.heatmap-legend-scale i[data-level="3"] { background: rgba(245, 245, 245, 0.62); }
.heatmap-legend-scale i[data-level="4"] { background: rgba(245, 245, 245, 0.82); }
.heatmap-legend-scale i[data-level="5"] { background: rgba(245, 245, 245, 0.98); }

/* Bulk actions */
.bulk-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  background: var(--surface-2);
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  padding: 10px 14px;
}
.bulk-count { font-size: 13px; font-weight: 600; color: var(--text-dim); }
.bulk-actions { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }

.th-check, .td-check {
  width: 40px;
  text-align: center;
}
.td-check input, .th-check input {
  width: 16px;
  height: 16px;
  accent-color: var(--accent);
  cursor: pointer;
}

/* Session manager */
.session-drop-zone {
  border: 2px dashed var(--line-2);
  border-radius: var(--r-md);
  padding: 28px 16px;
  text-align: center;
  color: var(--text-dim);
  transition: border-color .15s, background .15s;
  cursor: pointer;
}
.session-drop-zone svg {
  width: 32px;
  height: 32px;
  margin: 0 auto 10px;
  color: var(--text-mute);
}
.session-drop-zone p { margin-bottom: 6px; font-size: 14px; }
.session-drop-zone.dragover {
  border-color: var(--accent);
  background: rgba(255, 255, 255, 0.04);
}
.session-status-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-top: 14px;
}
.session-status-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 10px 12px;
  background: var(--surface-2);
  border: 1px solid var(--line);
  border-radius: var(--r-sm);
  font-size: 13px;
}
.session-status-item .mono { font-size: 12px; }

/* Proxy check row */
.proxy-field-row {
  display: flex;
  gap: 8px;
  align-items: stretch;
}
.proxy-field-row .input { flex: 1; min-width: 0; }
.proxy-field-row .btn-ghost { flex-shrink: 0; white-space: nowrap; }
.proxy-check-result.ok { color: var(--good); }
.proxy-check-result.err { color: var(--bad); }

/* Account swipe (mobile) */
.account-swipe-actions {
  display: none;
}
@media (max-width: 900px) {
  .table-wrap.table-cards #accountsBody tr.account-row {
    position: relative;
    overflow: hidden;
    transition: transform .22s ease;
    will-change: transform;
  }
  .table-wrap.table-cards #accountsBody tr.account-row .account-swipe-actions {
    display: flex;
    position: absolute;
    right: 0;
    top: 0;
    bottom: 0;
    width: 128px;
    align-items: center;
    justify-content: center;
    gap: 6px;
    background: var(--surface-3);
    border-left: 1px solid var(--line);
    z-index: 0;
  }
  .table-wrap.table-cards #accountsBody tr.account-row .account-swipe-actions .ra {
    width: 36px;
    height: 36px;
  }
  .table-wrap.table-cards #accountsBody tr.account-row.swipe-open {
    transform: translateX(-128px);
  }
  .table-wrap.table-cards #accountsBody tr.account-row .td-check::before {
    content: none;
  }
  .bulk-bar { flex-direction: column; align-items: stretch; }
  .bulk-actions { justify-content: flex-start; }
  .heatmap-grid { min-width: 480px; }
  .heatmap-cell { height: 14px; }
}

/* Table */
.table-wrap {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}
.table-wrap.table-cards {
  overflow-x: visible;
}
table.purchases {
  width: 100%;
  border-collapse: collapse;
  min-width: 880px;
}
table.purchases th {
  text-align: left;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--text-mute);
  font-weight: 500;
  padding: 12px 14px;
  border-bottom: 1px solid var(--line);
}
table.purchases td {
  padding: 14px;
  border-bottom: 1px solid var(--line);
  font-size: 14px;
  font-weight: 500;
}
table.purchases tbody tr:last-child td { border-bottom: 0; }
table.purchases tbody tr { transition: background .15s; }
table.purchases tbody tr:hover { background: var(--surface-2); }

.course-cell {
  display: flex;
  align-items: center;
  gap: 12px;
}
.course-thumb {
  width: 42px; height: 42px;
  border-radius: 10px;
  background: linear-gradient(135deg, #2a2a2a, #141414);
  display: grid; place-items: center;
  font-size: 20px;
  border: 1px solid var(--line);
}
.account-thumb {
  font-family: 'JetBrains Mono', ui-monospace, monospace;
  font-size: 13px;
  font-weight: 700;
  color: var(--text);
  letter-spacing: 0.02em;
}
.account-meta { display: flex; flex-direction: column; gap: 3px; min-width: 0; }
.account-name {
  font-size: 14px;
  font-weight: 600;
  color: var(--text);
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.account-sub {
  font-size: 11.5px;
  color: var(--text-mute);
  font-weight: 500;
}
.tag-active {
  font-size: 9.5px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 2px 6px;
  border-radius: 4px;
  background: var(--accent);
  color: var(--bg);
}
.cell-strong { font-weight: 600; color: var(--text); }
.cell-dim    { color: var(--text-dim); font-weight: 500; }
.cell-mute   { color: var(--text-mute); font-weight: 500; }

.row-active td { background: rgba(255, 255, 255, 0.025); }
.empty-row {
  text-align: center !important;
  padding: 28px !important;
  color: var(--text-mute);
  font-weight: 500;
}

#refreshBtn.spinning svg { animation: rb-spin .6s linear; }
@keyframes rb-spin { from { transform: rotate(0); } to { transform: rotate(360deg); } }

/* ===== Primary / ghost / danger buttons ===== */
.btn-primary,
.btn-ghost,
.btn-danger {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  height: 38px;
  padding: 0 16px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 13px;
  letter-spacing: 0.01em;
  border: 1px solid transparent;
  transition: background .15s, color .15s, border-color .15s, transform .15s;
}
.btn-primary { background: var(--accent); color: var(--bg); }
.btn-primary:hover { background: var(--accent-soft); transform: translateY(-1px); }
.btn-primary svg { width: 16px; height: 16px; }
.btn-ghost { background: transparent; color: var(--text-dim); border-color: var(--line); }
.btn-ghost:hover { color: var(--text); background: var(--surface-2); border-color: var(--line-2); }
.btn-danger { background: var(--bad); color: #1a0000; }
.btn-danger:hover { background: #fca5a5; transform: translateY(-1px); }

/* ===== Row actions ===== */
.th-actions { text-align: right; }
.row-actions {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  justify-content: flex-end;
}
.ra {
  width: 30px; height: 30px;
  min-width: 30px; min-height: 30px;
  border-radius: 8px;
  background: transparent;
  border: 1px solid transparent;
  color: var(--text-dim);
  display: grid; place-items: center;
  transition: background .15s, color .15s, border-color .15s;
}
.ra svg { width: 15px; height: 15px; }
.ra:hover { background: var(--surface-2); color: var(--text); border-color: var(--line); }
.ra.ra-on { color: var(--accent); }
.ra.ra-start { color: var(--good); }
.ra.ra-stop  { color: var(--bad); }
.ra.ra-danger:hover { color: var(--bad); border-color: rgba(248,113,113,0.4); background: rgba(248,113,113,0.08); }

/* ===== Modal ===== */
.modal-root[hidden] {
  display: none !important;
  pointer-events: none !important;
}

.modal-root {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: grid;
  place-items: center;
  opacity: 0;
  transition: opacity .18s;
}

.bot-select {
  min-width: 150px;
  max-width: 220px;
  padding: 9px 12px;
  font-size: 13px;
  font-weight: 500;
  background: var(--surface-2);
  border: 1px solid var(--line);
  border-radius: var(--r-sm);
  color: var(--text);
  cursor: pointer;
}

.chats-search {
  min-width: 140px;
  max-width: 180px;
  padding: 9px 12px;
  font-size: 13px;
}

.modal-root.in { opacity: 1; }
.modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.65);
  backdrop-filter: blur(4px);
}
.modal-panel {
  position: relative;
  width: min(560px, calc(100vw - 32px));
  max-height: calc(100vh - 60px);
  background: var(--surface);
  border: 1px solid var(--line-2);
  border-radius: var(--r-lg);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.6);
  display: flex;
  flex-direction: column;
  transform: translateY(8px) scale(.99);
  transition: transform .18s;
  overflow: hidden;
}
.modal-root.in .modal-panel { transform: translateY(0) scale(1); }
.modal-panel.modal-wide { width: min(960px, calc(100vw - 32px)); }
.modal-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 22px 14px;
  border-bottom: 1px solid var(--line);
}
.modal-head h3 { font-size: 16px; font-weight: 700; letter-spacing: -0.01em; }
.modal-body {
  padding: 18px 22px;
  overflow-y: auto;
  min-height: 60px;
}
.modal-body::-webkit-scrollbar { width: 6px; }
.modal-body::-webkit-scrollbar-thumb { background: var(--line-2); border-radius: 3px; }
.modal-foot {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
  padding: 14px 22px 18px;
  border-top: 1px solid var(--line);
}
.modal-text { color: var(--text-dim); font-size: 14px; line-height: 1.5; }

/* ===== Form primitives ===== */
.form-grid { display: flex; flex-direction: column; gap: 14px; }
.field { display: flex; flex-direction: column; gap: 6px; min-width: 0; }
.field-label {
  font-size: 12px;
  color: var(--text-dim);
  font-weight: 600;
  letter-spacing: 0.02em;
  display: flex; align-items: center; gap: 6px;
}
.field-label em {
  font-style: normal;
  font-size: 10.5px;
  font-weight: 500;
  color: var(--text-mute);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}
.field-hint { font-size: 11.5px; color: var(--text-mute); }
.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.input {
  width: 100%;
  background: var(--bg-2);
  border: 1px solid var(--line);
  color: var(--text);
  font-size: 13px;
  padding: 10px 12px;
  border-radius: var(--r-sm);
  transition: border-color .15s, background .15s;
  font-family: inherit;
}
.input:focus { border-color: var(--accent); background: var(--surface); }
.input.mono { font-family: 'JetBrains Mono', ui-monospace, monospace; font-size: 12.5px; }
textarea.input { resize: vertical; min-height: 60px; line-height: 1.45; }

.check {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 13px;
  color: var(--text);
  cursor: pointer;
}
.check input[type="checkbox"] {
  width: 16px; height: 16px;
  accent-color: var(--accent);
}

.callout {
  background: var(--surface-2);
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  padding: 12px 14px;
  font-size: 12.5px;
  color: var(--text-dim);
  line-height: 1.5;
}
.callout b { color: var(--text); font-weight: 600; }

/* ===== Toggle switch ===== */
.switch { position: relative; display: inline-block; width: 34px; height: 20px; }
.switch input { opacity: 0; width: 0; height: 0; }
.switch span {
  position: absolute; inset: 0;
  background: var(--surface-3);
  border: 1px solid var(--line-2);
  border-radius: 999px;
  cursor: pointer;
  transition: background .15s;
}
.switch span::before {
  content: '';
  position: absolute;
  top: 2px; left: 2px;
  width: 14px; height: 14px;
  background: var(--text-dim);
  border-radius: 50%;
  transition: transform .15s, background .15s;
}
.switch input:checked + span { background: var(--accent); border-color: var(--accent); }
.switch input:checked + span::before { transform: translateX(14px); background: var(--bg); }

/* ===== Chats drill-down ===== */
.chats-toolbar {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 12px;
}
.chats-toolbar .input { flex: 1; }
.chats-table-wrap { max-height: 60vh; overflow-y: auto; }
.chats-table-wrap::-webkit-scrollbar { width: 6px; }
.chats-table-wrap::-webkit-scrollbar-thumb { background: var(--line-2); border-radius: 3px; }
.chats-table { min-width: 720px; }
.chats-table th, .chats-table td { padding: 10px 12px; }

/* ===== Toasts ===== */
.toasts {
  position: fixed;
  bottom: 20px; right: 20px;
  z-index: 200;
  display: flex;
  flex-direction: column;
  gap: 8px;
  pointer-events: none;
}
.toast {
  background: var(--surface);
  border: 1px solid var(--line-2);
  border-left: 3px solid var(--accent);
  color: var(--text);
  padding: 12px 16px;
  border-radius: var(--r-sm);
  font-size: 13px;
  font-weight: 500;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.45);
  opacity: 0;
  transform: translateX(12px);
  transition: opacity .2s, transform .2s;
  max-width: 380px;
  pointer-events: auto;
}
.toast.in { opacity: 1; transform: translateX(0); }
.toast-ok  { border-left-color: var(--good); }
.toast-err { border-left-color: var(--bad);  }

/* ===== Log view ===== */
.log-view {
  font-family: 'JetBrains Mono', ui-monospace, SFMono-Regular, monospace;
  font-size: 12px;
  line-height: 1.55;
  color: var(--text);
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: var(--r-sm);
  padding: 12px 14px;
  max-height: 60vh;
  min-height: 280px;
  overflow-y: auto;
  white-space: pre-wrap;
  word-break: break-word;
}
.log-view::-webkit-scrollbar { width: 6px; }
.log-view::-webkit-scrollbar-thumb { background: var(--line-2); border-radius: 3px; }
.ra:disabled { opacity: .35; pointer-events: none; }
code {
  background: var(--surface-2);
  border: 1px solid var(--line);
  padding: 1px 6px;
  border-radius: 4px;
  font-family: 'JetBrains Mono', ui-monospace, monospace;
  font-size: 11.5px;
}

.badge {
  display: inline-flex;
  align-items: center;
  padding: 6px 18px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.02em;
}
.badge-paid    { background: var(--accent); color: var(--bg); }
.badge-pending { background: var(--surface-3); color: var(--text); border: 1px solid var(--line-2); }
.badge-failed  { background: rgba(248, 113, 113, 0.15); color: var(--bad); border: 1px solid rgba(248,113,113,0.3); }

/* ===== Responsive ===== */
@media (max-width: 1180px) {
  .stats-grid    { grid-template-columns: repeat(2, 1fr); }
  .charts-row    { grid-template-columns: 1fr 1fr; }
  .charts-row .active-card { grid-column: 1 / -1; }
}

@media (max-width: 900px) {
  html { -webkit-text-size-adjust: 100%; }

  .app {
    grid-template-columns: 1fr;
    padding: 0;
    gap: 0;
  }

  .menu-btn { display: grid; }

  .sidebar {
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    width: min(288px, 88vw);
    height: 100vh;
    height: 100dvh;
    z-index: 120;
    transform: translateX(-105%);
    transition: transform .25s ease;
    border-radius: 0;
    border-left: 0;
    border-top: 0;
    border-bottom: 0;
    padding-top: max(18px, env(safe-area-inset-top));
    padding-bottom: max(18px, env(safe-area-inset-bottom));
    box-shadow: 8px 0 32px rgba(0, 0, 0, 0.45);
  }

  body.sidebar-open .sidebar { transform: translateX(0); }
  body.sidebar-open { overflow: hidden; }

  .sidebar-backdrop {
    position: fixed;
    inset: 0;
    z-index: 110;
    background: rgba(0, 0, 0, 0.62);
    backdrop-filter: blur(3px);
  }
  .sidebar-backdrop[hidden] { display: none !important; }

  .main {
    min-height: 100vh;
    min-height: 100dvh;
    padding: max(12px, env(safe-area-inset-top)) 12px max(16px, env(safe-area-inset-bottom));
    gap: 14px;
  }

  .topbar {
    position: sticky;
    top: 0;
    z-index: 40;
    background: var(--bg);
    margin: -12px -12px 0;
    padding: max(10px, env(safe-area-inset-top)) 12px 10px;
    border-bottom: 1px solid var(--line);
  }

  .topbar-left { align-items: center; flex: 1 1 auto; }
  .topbar h1 { font-size: 20px; }
  .topbar .sub { font-size: 12px; }

  .topbar-right {
    width: 100%;
    flex-direction: column;
    align-items: stretch;
    gap: 8px;
  }

  .topbar-tools {
    display: flex;
    flex-wrap: nowrap;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    justify-content: flex-start;
    padding-bottom: 2px;
    scrollbar-width: none;
  }
  .topbar-tools::-webkit-scrollbar { display: none; }

  .topbar-tools .search {
    order: -1;
    width: 100%;
    min-width: 100%;
    flex: 0 0 100%;
  }

  .topbar-tools .bot-select,
  .topbar-tools .chats-search {
    flex: 0 0 auto;
    min-width: 132px;
    max-width: none;
  }

  .topbar-tools .btn-primary,
  .topbar-tools .btn-ghost {
    flex: 0 0 auto;
    white-space: nowrap;
  }

  .topbar-actions {
    align-self: flex-end;
  }

  .search { width: 100%; }

  .filter-bar {
    justify-content: flex-start;
    align-items: stretch;
  }

  .filter-bar .date-range {
    width: 100%;
    justify-content: center;
  }

  .card {
    padding: 16px;
    border-radius: var(--r-md);
  }

  .card-head {
    flex-wrap: wrap;
    gap: 8px;
    align-items: flex-start;
  }

  .charts-row {
    grid-template-columns: 1fr;
    gap: 14px;
  }

  .chart-wrap,
  .pie-wrap {
    height: auto;
    min-height: 200px;
  }

  .bar-chart { min-height: 180px; }

  .bar-chart-row {
    grid-template-columns: minmax(64px, 96px) 1fr minmax(38px, 48px);
    gap: 8px;
  }

  .stat-card:hover { transform: none; }

  .table-wrap.table-cards thead { display: none; }

  .table-wrap.table-cards table.purchases {
    min-width: 0;
    border-collapse: separate;
    border-spacing: 0 10px;
  }

  .table-wrap.table-cards table.purchases tbody tr {
    display: block;
    background: var(--surface-2);
    border: 1px solid var(--line);
    border-radius: var(--r-md);
    padding: 4px 14px 10px;
  }

  .table-wrap.table-cards table.purchases tbody tr:hover {
    background: var(--surface-2);
  }

  .table-wrap.table-cards table.purchases tbody tr.row-active {
    border-color: var(--line-2);
    box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.04);
  }

  .table-wrap.table-cards table.purchases tbody td {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 12px;
    padding: 10px 0;
    border-bottom: 1px solid var(--line);
    text-align: right;
  }

  .table-wrap.table-cards table.purchases tbody td:last-child {
    border-bottom: 0;
  }

  .table-wrap.table-cards table.purchases tbody td::before {
    content: attr(data-label);
    font-size: 10px;
    font-weight: 600;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    color: var(--text-mute);
    text-align: left;
    flex: 0 0 92px;
    padding-top: 2px;
  }

  .table-wrap.table-cards table.purchases tbody td > * {
    max-width: 100%;
  }

  .table-wrap.table-cards table.purchases tbody td.td-toggle {
    align-items: center;
  }

  .table-wrap.table-cards table.purchases tbody td.td-toggle::before {
    padding-top: 0;
  }

  .table-wrap.table-cards table.purchases tbody td.td-actions {
    justify-content: flex-end;
    padding-top: 12px;
    border-bottom: 0;
  }

  .table-wrap.table-cards table.purchases tbody td.td-actions::before {
    display: none;
  }

  .table-wrap.table-cards table.purchases tbody td .row-actions {
    flex-wrap: wrap;
    justify-content: flex-end;
  }

  .table-wrap.table-cards table.purchases tbody td .course-cell {
    flex-direction: column;
    align-items: flex-end;
    gap: 8px;
  }

  .table-wrap.table-cards table.purchases tbody td .account-meta {
    align-items: flex-end;
  }

  .table-wrap.table-cards .empty-row {
    display: block !important;
    text-align: center;
    border: 0;
    padding: 20px 12px !important;
  }

  .table-wrap.table-cards .empty-row::before {
    display: none !important;
  }

  .modal-root {
    place-items: end center;
    padding: 0;
  }

  .modal-panel {
    width: 100%;
    max-width: none;
    max-height: min(92vh, 92dvh);
    border-radius: var(--r-lg) var(--r-lg) 0 0;
    transform: translateY(100%);
  }

  .modal-root.in .modal-panel {
    transform: translateY(0);
  }

  .modal-panel.modal-wide {
    width: 100%;
  }

  .modal-head,
  .modal-body,
  .modal-foot {
    padding-left: 16px;
    padding-right: 16px;
  }

  .modal-foot {
    flex-wrap: wrap;
  }

  .modal-foot .btn-primary,
  .modal-foot .btn-ghost,
  .modal-foot .btn-danger {
    flex: 1 1 auto;
    justify-content: center;
    min-height: 44px;
  }

  .field-row {
    grid-template-columns: 1fr;
  }

  .chats-table-wrap {
    max-height: none;
  }

  .toasts {
    left: 12px;
    right: 12px;
    bottom: max(12px, env(safe-area-inset-bottom));
  }

  .toast {
    max-width: none;
    width: 100%;
  }

  .log-view {
    max-height: 50vh;
    min-height: 200px;
  }

  .btn-primary,
  .btn-ghost,
  .btn-danger {
    min-height: 40px;
  }

  .icon-btn {
    width: 42px;
    height: 42px;
  }
}

@media (max-width: 520px) {
  .stats-grid { grid-template-columns: 1fr; gap: 12px; }

  .stat-card { padding: 16px; }
  .stat-value { font-size: 24px; }

  .topbar h1 { font-size: 18px; }
  .topbar .sub { display: none; }

  .period-tab { padding: 8px 14px; font-size: 12px; }

  .active-grid { grid-template-columns: 1fr; }
  .active-name { font-size: 18px; }
  .kv-val { white-space: normal; word-break: break-word; }

  .community {
    flex-direction: column;
    align-items: stretch;
    text-align: center;
  }

  .community .ring {
    margin: 0 auto;
  }

  .pie-svg {
    width: 132px;
    height: 132px;
  }

  .card-head h3 { font-size: 15px; }

  .chip {
    font-size: 10px;
    padding: 4px 8px;
  }

  .login-body { padding: 16px; }
  .login-card { padding: 24px 18px; }
  .login-title { font-size: 20px; }
}

@media (max-width: 380px) {
  .topbar-tools .btn-primary span,
  .topbar-tools .btn-ghost span {
    display: none;
  }

  .topbar-tools .btn-primary,
  .topbar-tools .btn-ghost {
    width: 42px;
    padding: 0;
    justify-content: center;
  }
}

/* ===== Login page ===== */
.login-body {
  min-height: 100vh;
  display: grid;
  place-items: center;
  background:
    radial-gradient(ellipse 80% 60% at 50% -10%, rgba(255,255,255,.06), transparent),
    var(--bg);
  padding: 24px;
}

.login-wrap {
  width: 100%;
  max-width: 420px;
}

.login-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--r-xl);
  padding: 32px 28px;
  box-shadow: var(--shadow);
}

.login-brand {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 28px;
  padding-bottom: 22px;
  border-bottom: 1px solid var(--line);
}

.login-title {
  font-size: 22px;
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.2;
}

.login-sub {
  font-size: 13px;
  color: var(--text-mute);
  margin-top: 2px;
}

.login-form {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.login-submit {
  width: 100%;
  justify-content: center;
  padding: 12px 18px;
  margin-top: 4px;
  font-weight: 600;
}

.login-error {
  font-size: 13px;
  color: var(--bad);
  padding: 10px 12px;
  background: rgba(248, 113, 113, .08);
  border: 1px solid rgba(248, 113, 113, .25);
  border-radius: var(--r-sm);
}